Outdoor unit of air conditioner

Abstract

The utility model discloses an air conditioner outdoor unit which comprises a machine shell, a compressor, an outdoor heat exchanger, a draught fan, a partition plate, a gas-liquid separator and a damping piece, an air inlet is formed in the periphery of the machine shell, and an air outlet is formed in the top of the machine shell. The fan drives outdoor air to enter the machine shell from the air inlet, and the outdoor air exchanges heat with the outdoor heat exchanger and then flows out through the air outlet. The partition plate is arranged in the machine shell and located between the outdoor heat exchanger and the compressor. The gas-liquid separator is arranged in the machine shell, the gas-liquid separator and the compressor are located on the same side of the partition plate, and the gas-liquid separator communicates with the compressor and the four-way valve through pipelines. The damping piece is arranged between the partition plate and the gas-liquid separator and connected with the gas-liquid separator and the partition plate. According to the air conditioner outdoor unit, the damping piece can absorb vibration transmitted to the gas-liquid separator through compression and the pipeline, the vibration is prevented from being transmitted to the partition plate, noise generated when the air conditioner outdoor unit works is reduced, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to an outdoor unit of an air conditioner. Background Art

[0002] In the related art, air conditioners with a relatively large refrigerant charge usually include a gas-liquid separator, and the gas-liquid separator is directly fixed on the sheet metal partition. When the air conditioner is working, the vibration generated by the compressor and pipeline will be transmitted to the gas-liquid separator, and then directly transmitted to the sheet metal partition and the casing through the gas-liquid separator, thereby causing the air conditioner to have a low-frequency vibration buzzing sound, making the air conditioner noisy when working, affecting the user experience. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide an outdoor unit of an air conditioner, wherein a shock absorbing member can absorb the vibration transmitted from compression and pipeline to the gas-liquid separator, prevent the vibration from being transmitted to the partition, reduce the noise of the outdoor unit of the air conditioner when it is working, and improve the user experience.

[0004] In order to achieve the above-mentioned purpose, according to an embodiment of the utility model, an air conditioner outdoor unit is proposed, comprising: a casing, an air inlet is formed on the outer periphery of the casing and an air outlet is formed on the top; a compressor, the compressor is arranged in the casing; an outdoor heat exchanger, the outdoor heat exchanger is arranged in the casing and is used to exchange heat with outdoor air; a fan, the fan is arranged in the casing, the fan drives the outdoor air to enter the casing from the air inlet, and the outdoor air flows out through the air outlet after heat exchange with the outdoor heat exchanger; a partition, the partition is arranged in the casing and is located between the outdoor heat exchanger and the compressor; the air conditioner outdoor unit also includes: a gas-liquid separator, the gas-liquid separator is arranged in the casing and is located on the same side of the partition as the compressor, and the gas-liquid separator is connected to the compressor and the four-way valve through pipelines respectively; a shock absorber, the shock absorber is arranged between the partition and the gas-liquid separator, and the shock absorber is connected to the gas-liquid separator and the partition respectively.

[0005] According to the air conditioner outdoor unit of the utility model embodiment, a shock-absorbing component is arranged between the partition and the gas-liquid separator, and the weight-reducing component is respectively connected to the gas-liquid separator and the partition. While the gas-liquid separator is fixed to the partition, the shock-absorbing component can absorb the vibration transmitted to the gas-liquid separator by compression and pipelines, and avoid the vibration being transmitted to the partition, thereby reducing the noise generated when the air conditioner outdoor unit is working and improving the user experience.

[0006] According to some embodiments of the utility model, the shock absorbing member includes: a first shock absorbing section, the first shock absorbing section is connected to the gas-liquid separator; two second shock absorbing sections, the two second shock absorbing sections are respectively arranged on both sides of the length direction of the first shock absorbing section, and each second shock absorbing section is connected to the partition; wherein, in the thickness direction of the first shock absorbing section, a side surface of the first shock absorbing section adjacent to the gas-liquid separator protrudes out from a side surface of the second shock absorbing section adjacent to the gas-liquid separator.

[0007] According to some embodiments of the present invention, in a thickness direction of the first shock absorbing segment, the thickness of the first shock absorbing segment is greater than the thickness of the second shock absorbing segment.

[0008] According to some embodiments of the present invention, in the thickness direction of the first shock absorbing section, a side surface of the first shock absorbing section adjacent to the partition is recessed toward the gas-liquid separator to form an avoidance groove.

[0009] According to some embodiments of the utility model, the gas-liquid separator includes: a main body; an outlet pipe, the outlet pipe including a first pipe segment and a U-shaped pipe segment connected to each other, the first pipe segment is located outside the main body, and at least part of the U-shaped pipe segment is located inside the main body; an inlet pipe, the inlet pipe including a second pipe segment, a third pipe segment and a fourth pipe segment connected to each other, the second pipe segment is located outside the main body, the fourth pipe segment and at least part of the third pipe segment are located inside the main body, the second pipe segment and the fourth pipe segment both extend along the radial direction of the third pipe segment in a direction away from the third pipe segment, and the angle between the second pipe segment and the fourth pipe segment is an acute angle.

[0010] According to some embodiments of the utility model, the air conditioner outdoor unit further includes: a sound insulating member, wherein the sound insulating member wraps the entire outer peripheral surface of the gas-liquid separator.

[0011] According to some embodiments of the utility model, the gas-liquid separator has an inlet and an outlet, the inlet is connected to the four-way valve through a first pipeline, the outlet is connected to the compressor through a second pipeline, and at least one of the first pipeline and the second pipeline is provided with a shock-absorbing block.

[0012] According to some embodiments of the present invention, the shock absorbing block is disposed adjacent to a bend of the first pipeline; and / or the shock absorbing block is disposed adjacent to a bend of the second pipeline.

[0013] According to some embodiments of the present utility model, a through hole is formed on the shock absorbing block, the through hole penetrates the shock absorbing block along the axial direction, and the central axis of the through hole deviates from the central axis of the shock absorbing block.

[0014] The outdoor unit of the air conditioner proposed in the embodiment of the utility model comprises: a casing, an air inlet is formed on the outer periphery of the casing and an air outlet is formed on the top; a compressor, the compressor is arranged in the casing; an outdoor heat exchanger, the outdoor heat exchanger is arranged in the casing and is used for heat exchange with outdoor air; a fan, the fan is arranged in the casing, the fan drives the outdoor air to enter the casing from the air inlet, and the outdoor air flows out through the air outlet after heat exchange with the outdoor heat exchanger; a partition, the partition is arranged in the casing and is located between the outdoor heat exchanger and the compressor; the outdoor unit of the air conditioner also comprises: a gas-liquid separator, the gas-liquid separator is arranged in the casing and is located on the same side of the partition as the compressor, the gas-liquid separator is connected to the compressor and the four-way valve through pipelines respectively; a shock absorber, the shock absorber is arranged between the partition and the gas-liquid separator, and the shock absorber is respectively abutted against the gas-liquid separator and the partition.

[0015] According to the air conditioner outdoor unit of the utility model embodiment, a shock-absorbing component is arranged between the partition and the gas-liquid separator, and the weight-reducing component is respectively connected to the gas-liquid separator and the partition. While the gas-liquid separator is fixed to the partition, the shock-absorbing component can absorb the vibration transmitted to the gas-liquid separator by compression and pipelines, and avoid the vibration being transmitted to the partition, thereby reducing the noise generated when the air conditioner outdoor unit is working and improving the user experience.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a partial schematic diagram of an outdoor unit of an air conditioner according to an embodiment of the utility model;

[0019] Figure 2 It is a partial enlarged view of an outdoor unit of an air conditioner according to an embodiment of the utility model;

[0020] Figure 3 is another partial schematic diagram of an air conditioner outdoor unit according to an embodiment of the utility model;

[0021] Figure 4 is another partial enlarged view of the outdoor unit of the air conditioner according to the embodiment of the utility model;

[0022] Figure 5 It is a schematic diagram of a gas-liquid separator and a sound insulation member of an outdoor unit of an air conditioner according to an embodiment of the utility model;

[0023] Figure 6 is an exploded view of a sound insulation member of an outdoor unit of an air conditioner according to an embodiment of the utility model;

[0024] Figure 7 is a schematic diagram of a shock absorbing member of an outdoor unit of an air conditioner according to an embodiment of the utility model;

[0025] Figure 8 is a schematic diagram of a shock absorbing block of an outdoor unit of an air conditioner according to an embodiment of the utility model;

[0026] Fig. 9 is a cross-sectional view of a gas-liquid separator of an outdoor unit of an air conditioner according to an embodiment of the utility model;

[0027] Fig.10 It is another cross-sectional view of the gas-liquid separator of the outdoor unit of the air conditioner according to an embodiment of the utility model.

[0028] Reference numerals:

[0029] 100: outdoor unit of air conditioner;

[0030] 10: compressor; 20: partition; 30: gas-liquid separator; 301: body; 302: outlet pipe; 3021: first pipe section; 3022: U-shaped pipe section; 3023: inlet; 303: outlet pipe; 3031: second pipe section; 3032: third pipe section; 3033: fourth pipe section; 3034: outlet; 40: four-way valve; 50: shock absorber; 501: first shock absorber section; 502: second shock absorber section; 503: avoidance groove; 60: sound insulation; 601: first sound insulation board; 602: second sound insulation board; 603: Velcro; 70: shock absorber block; 701: through hole; 702: opening; 80: first pipeline; 90: second pipeline. DETAILED DESCRIPTION

[0031] Reference below Figure 1-Figure 10 An air conditioner outdoor unit 100 according to an embodiment of the present invention is described.

[0032] like Figure 1-Figure 4 As shown, the air conditioner outdoor unit 100 according to the embodiment of the utility model may include a casing, an air inlet is formed on the outer periphery of the casing and an air outlet is formed on the top, and the casing has a containing space to facilitate fixing the components of the air conditioner outdoor unit 100, and the casing can protect the above components. Among them, there can be multiple air inlets, and the multiple air inlets are arranged along the circumference of the casing to ensure that the air conditioner outdoor unit 100 has sufficient air intake when working. In the description of the utility model, the meaning of "multiple" is two or more.

[0033] The air conditioner outdoor unit 100 may include a compressor 10, which is disposed in a housing. The compressor 10 can compress a refrigerant gas in a high temperature and high pressure state and discharge the compressed refrigerant gas, and the discharged refrigerant gas flows into a condenser (i.e., an outdoor heat exchanger). The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0034] The air conditioner outdoor unit 100 may include an outdoor heat exchanger, which is arranged in the casing and is used to perform heat exchange with outdoor air. When the air conditioner outdoor unit 100 is working, outdoor air can flow into the casing 100 from the air inlet of the casing, and after exchanging heat with the outdoor heat exchanger to form a heat exchange airflow, it is discharged to the outside through the air outlet, and then the outdoor heat exchanger can be used to heat the airflow or cool the airflow to ensure that the low-temperature refrigerant flows to the air conditioner indoor unit during cooling, or the high-temperature refrigerant flows to the air conditioner indoor unit during heating, thereby achieving heating or cooling of the indoor air.

[0035] The air conditioner outdoor unit 100 may include a fan, which can be operated to drive air flow to speed up the flow rate of the air flow, thereby improving the heat exchange efficiency between the air and the outdoor heat exchanger to improve the cooling or heating efficiency of the air conditioner outdoor unit 100.

[0036] The air conditioner outdoor unit 100 may include a partition 20, which is arranged in the casing and between the outdoor heat exchanger and the compressor 10. The partition 20 can be used to separate the outdoor heat exchanger and the compressor 10. The outdoor heat exchanger and the compressor 10 can both be fixedly connected to the partition 20 to prevent the outdoor heat exchanger from shaking when the air conditioner outdoor unit 100 is working.

[0037] Specifically, the air conditioner outdoor unit 100 may include a casing, a compressor 10, an outdoor heat exchanger, a fan and a partition 20. The compressor 10, the outdoor heat exchanger, the fan and the partition 20 are all arranged in the casing. An air inlet and an air outlet are formed on the casing. The fan is arranged adjacent to the air inlet, wherein the fan can drive outdoor air to enter the casing from the air inlet, and at the same time, the refrigerant in the compressor 10 flows to the outdoor heat exchanger. After heat exchange with the outdoor heat exchanger, the outdoor air flows out through the air outlet to adjust the refrigerant temperature in the outdoor heat exchanger, so that the low-temperature refrigerant flows to the air conditioner indoor unit during cooling, or the high-temperature refrigerant flows to the air conditioner indoor unit during heating.

[0038] The air conditioner outdoor unit 100 may include a gas-liquid separator 30, which is disposed in the housing and is located on the same side of the partition 20 as the compressor 10. The gas-liquid separator 30 is connected to the compressor 10 and the four-way valve 40 through pipelines. The gas-liquid separator 30 can separate the refrigerant in gaseous and liquid states, so that the liquid refrigerant can remain at the bottom of the gas-liquid separator 30, and the gaseous refrigerant can enter the compressor 10 from the upper pipeline, ensuring that the refrigerant entering the compressor 10 under various working conditions is as gaseous as possible, thereby ensuring the life and reliability of the compressor 10.

[0039] The air conditioner outdoor unit 100 may include a shock absorber 50, which is disposed between the partition 20 and the gas-liquid separator 30, and the shock absorber 50 is connected to the gas-liquid separator 30 and the partition 20, respectively. That is, there is no rigid connection between the gas-liquid separator 30 and the partition 20, and the gas-liquid separator 30 and the partition 20 are indirectly connected through the shock absorber 50. Since the shock absorber 50 has good shock-absorbing and sound-insulating effects, even if the vibration generated by the compressor 10 and the pipeline can be transmitted to the gas-liquid separator 30, the existence of the shock absorber 50 can absorb noise and buffer vibration, so that the vibration will not be transmitted to the partition 20 and the casing, thereby effectively isolating the transmission and amplification of vibration noise, thereby reducing the noise when the air conditioner is working indoors and outdoors, and improving the user experience.

[0040] Specifically, the air conditioner outdoor unit 100 may include a gas-liquid separator 30 and a shock absorber 50, the gas-liquid separator 30 and the shock absorber 50 are located on the same side of the thickness direction of the partition 20, the shock absorber 50 is fixed to the partition 20 by bolts, and the gas-liquid separator 30 is fixed to the shock absorber 50 by bolts. The shock absorber 50 can be made of rubber material. Due to the specific and unique viscoelastic properties of rubber itself, the shock absorber 50 has good shock absorbing performance, sound insulation performance and buffering performance, so that the vibration generated by the compressor 10 and the pipeline is only transmitted to the gas-liquid separator 30, and will not be further transmitted to the partition 20, thereby reducing the low-frequency noise generated by the partition 20 and the casing, and improving the user experience.

[0041] In this way, according to the air conditioner outdoor unit 100 of the utility model embodiment, a shock absorbing member 50 is arranged between the partition 20 and the gas-liquid separator 30, and the weight reducing member is respectively connected to the gas-liquid separator 30 and the partition 20. While fixing the gas-liquid separator 30 to the partition 20, the shock absorbing member 50 can absorb the vibration transmitted to the gas-liquid separator 30 by compression and pipelines, and avoid the vibration from being transmitted to the partition 20, thereby reducing the noise generated when the air conditioner outdoor unit 100 is working and improving the user experience.

[0042] According to some embodiments of the present invention, Figure 1-Figure 4As shown, the shock absorbing member 50 may include a first shock absorbing section 501, which is connected to the gas-liquid separator 30. In this way, the first shock absorbing section 501 is located between the gas-liquid separator 30 and the partition 20. The bolts pass through the mounting position of the gas-liquid separator 30 and are connected to the first shock absorbing section 501 to achieve the connection between the first shock absorbing section 501 and the gas-liquid separator 30. The first shock absorbing section 501 can absorb the vibration transmitted to the gas-liquid separator 30 to prevent the vibration from being transmitted to the partition 20.

[0043] The shock absorbing member 50 may include two second shock absorbing sections 502, and the two second shock absorbing sections 502 are respectively arranged in the length direction of the first shock absorbing section 501 (for example, Figure 7 Each second shock absorbing section 502 is connected to the partition plate 20. Figure 7 As shown, each second shock absorbing section 502 extends in a direction away from the first shock absorbing section 501 in the length direction of the first shock absorbing section 501, and each second shock absorbing section 502 is formed with two mounting holes, which are arranged in a width direction of the first shock absorbing section 501 (for example, Figure 7 The bolts are connected to the partition plate 20 through the corresponding mounting holes to securely fix the shock absorbing member 50 on the partition plate 20.

[0044] The shock absorbing member 50 may include a first shock absorbing segment 501 and two second shock absorbing segments 502, wherein the second shock absorbing segment 502, the first shock absorbing segment 501 and the second shock absorbing segment 502 are sequentially connected along the length direction of the shock absorbing member 50, and the two second shock absorbing segments 502 are located in the thickness direction of the first shock absorbing segment 501 (for example, Figure 7 The first shock absorbing section 501 is used to connect the shock absorbing member 50 with the gas-liquid separator 30, and the second shock absorbing section 502 is used to connect the shock absorbing member 50 with the partition 20. The partition 20 and the gas-liquid separator 30 are indirectly connected through the shock absorbing member 50 to avoid the vibration of the gas-liquid separator 30 being transmitted to the partition 20.

[0045] In the thickness direction of the first damping section 501, the side surface of the first damping section 501 adjacent to the gas-liquid separator 30 protrudes from the side surface of the second damping section 502 adjacent to the gas-liquid separator 30. In other words, the gas-liquid separator 30 is separated from the second damping section 502 by the first damping section 501, that is, the second damping section 502 is not in contact with the gas-liquid separator 30. In this way, the contact area between the damping member 50 and the gas-liquid separator 30 is reduced, further preventing the vibration of the gas-liquid separator 30 from being transmitted to the partition 20.

[0046] Further, in the thickness direction of the first shock absorbing section 501, the thickness of the first shock absorbing section 501 is greater than the thickness of the second shock absorbing section 502. Figure 7As shown, the thickness of the first shock absorbing section 501 is approximately 4 times the thickness of the second shock absorbing section 502, so that the thicker first shock absorbing section 501 can have a better shock absorbing effect. At the same time, the thinner second shock absorbing section 502 can reduce the weight of the shock absorbing member 50 and reduce the cost while ensuring the structural strength of the shock absorbing member 50.

[0047] In some optional embodiments, in the thickness direction of the first damping section 501, a side surface of the first damping section 501 adjacent to the partition plate 20 is recessed toward the gas-liquid separator 30 to form an avoidance groove 503. Figure 7 The cross-sectional shape of the avoidance groove 503 is roughly trapezoidal, and the avoidance groove 503 is formed by a concave side of the thickness direction of the first shock-absorbing section 501 toward the direction of the gas-liquid separator 30. In this way, while ensuring that the first shock-absorbing section 501 is connected to the gas-liquid separator 30, the first shock-absorbing section 501 can be separated from the partition 20 to prevent the first shock-absorbing section 501 from directly contacting the partition 20, thereby avoiding the small amplitude vibration on the first shock-absorbing section 501 from being transmitted to the partition 20, further reducing the noise.

[0048] Optionally, the shock absorber 50 can be made of NBR nitrile rubber material with a Shore hardness of 55 degrees. In this case, the shock absorber 50 has good aging resistance and weather resistance. A metal part can be arranged inside the shock absorber 50 to improve the rigidity and service life of the shock absorber 50. For example, the shock absorber 50 can be a rubber shock absorber 50 with internal air damping to further improve the shock absorption performance.

[0049] According to some embodiments of the present invention, the gas-liquid separator 30 may include a body 301 , wherein the body 301 has a containing cavity for containing a mixture of a gaseous refrigerant and a liquid refrigerant.

[0050] Reference Fig. 9 The gas-liquid separator 30 may include an outlet pipe 302, the outlet pipe 302 includes a first pipe section 3021 and a U-shaped pipe section 3022 connected to each other, the first pipe section 3021 is located outside the body 301, and at least part of the U-shaped pipe section 3022 is located inside the body 301. The U-shaped pipe section 3022 may be completely located inside the body 301 (not shown); or, the U-shaped pipe section 3022 may be partially located inside the body 301 (such as Figure 5 shown).

[0051] Since the mixture of gaseous refrigerant and liquid refrigerant flows into the main body 301 and is separated in the main body 301, the liquid refrigerant with higher density is located at the bottom of the main body 301, while the gaseous refrigerant with lower density is located at the upper part of the main body 301. By setting the U-shaped pipe section 3022 in the main body 301, the air inlet of the U-shaped pipe section 3022 is located at the upper part of the main body 301, avoiding liquid refrigerant from entering the U-shaped pipe section 3022, thereby ensuring that the refrigerant entering the compressor 10 under various operating conditions is as gaseous refrigerant as possible.

[0052] Reference Fig. 9 The gas-liquid separator 30 may include an inlet pipe 303, which includes a second pipe segment 3031, a third pipe segment 3032 and a fourth pipe segment 3033 connected to each other, the second pipe segment 3031 is located outside the body 301, the fourth pipe segment 3033 and at least part of the third pipe segment 3032 are located inside the body 301, the second pipe segment 3031 and the fourth pipe segment 3033 both extend in a radial direction of the third pipe segment 3032 in a direction away from the third pipe segment 3032, and the angle between the second pipe segment 3031 and the fourth pipe segment 3033 is an acute angle.

[0053] In the prior art, due to the limitation of the internal vertical space of the main body 301 of the gas-liquid separator 30, the inlet pipe outside the main body 301 can only be designed as a curved pipe shape. Due to the influence of the welding assembly defect rate, the inlet pipe inside the main body 301 is usually designed as a straight pipe. Under this design, the inhaled refrigerant is easy to directly impact the liquid refrigerant at the bottom of the main body 301 or the bottom of the main body 301, resulting in a hissing high-frequency abnormal sound. When the compressor 10 is running at a high frequency, the refrigerant flow rate is accelerated, and the refrigerant impact sound will become a sharper squeaking sound, which is particularly obvious, resulting in a poor subjective hearing. In addition, when the refrigerant flow control is inaccurate, the refrigerant flow and state inhaled by the gas-liquid separator 30 are different, which will also cause the above problems.

[0054] In the present application, by making the second pipe segment 3031 and the third pipe segment 3032 form an L-shaped tube, the fourth pipe segment 3033 and the third pipe segment 3032 also form an L-shaped tube, and the second pipe segment 3031 and the fourth pipe segment 3033 are not parallel, the inhaled mixed refrigerant can be rotated at the port of the fourth pipe segment 3033 and separated into gaseous refrigerant and liquid refrigerant, avoiding the refrigerant directly impacting the bottom of the main body 301, and effectively preventing high-frequency abnormal noise caused by refrigerant impact.

[0055] Specifically, Fig. 9 and Fig.10As shown, the gas-liquid separator 30 may include a body 301, an inlet pipe 303 and an outlet pipe 302, the first pipe segment 3021 and the second pipe segment 3031 are located outside the body 301 and are parallel to each other, part of the U-shaped pipe segment 3022, part of the third pipe segment 3032 and the fourth pipe segment 3033 are all located inside the body 301, and the fourth pipe segment 3033 is located below the air inlet of the U-shaped pipe segment 3022. On the axial projection plane of the gas-liquid separator 30, the fourth pipe segment 3033 is parallel to the U-shaped pipe segment 3022. On the axial projection plane of the gas-liquid separator 30, the angle α between the fourth pipe segment 3033 and the second pipe segment 3031 is 68 degrees. In this way, the gaseous refrigerant can be ensured to flow to the compressor 10 through the U-shaped pipe section 3022 and the first pipe section 3021, and the inhaled mixed refrigerant rotates at the port of the fourth pipe section 3033 and is separated into gaseous refrigerant and liquid refrigerant, thereby preventing the refrigerant from directly impacting the bottom of the main body 301, effectively preventing high-frequency abnormal noise caused by refrigerant impact, and further improving the user experience.

[0056] The air conditioner outdoor unit 100 of the present invention performs a refrigeration cycle of the air conditioner outdoor unit 100 by using a compressor 10, 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 conditioned and heat-exchanged air.

[0057] The expansion valve expands the high-temperature and high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid 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 10. The evaporator can achieve a refrigeration effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled.

[0058] The opening of the expansion valve can be adjusted according to the target suction superheat SSH. obj Control is performed to directly control the state of the refrigerant sucked into the gas-liquid separator 30:

[0059] Current suction superheat SSH during cooling cur = compressor 10 suction temperature T s -Indoor heat exchanger coil temperature T incoil ;

[0060] Current suction superheat SSH during heating cur = compressor 10 suction temperature T s -Outdoor heat exchanger coil temperature T outcoil ;

[0061] Target suction superheat SSH during cooling obj =(35-T O )×0.04+(T i -27)×0.07+2, where TO is the outdoor ambient temperature, T i is the indoor ambient temperature;

[0062] According to the current suction superheat SSH cur and target suction superheat SSH obj The difference between the two values ​​automatically controls the opening of the expansion valve until the target suction superheat SSH is reached. obj The opening corresponding to the state;

[0063] Specifically, the target suction superheat SSH can be obj Satisfy: 1≤SSH obj , that is, the target suction superheat SSH obj Cannot be too small, if the target suction superheat SSH obj If the suction superheat is too small, too much liquid refrigerant will remain in the compressor 10, which may easily cause the risk of liquid hammer and affect the reliability of the compressor 10. obj Cannot be less than 1.

[0064] The target suction superheat SSH obj Meets: SSH ob ≤4, that is, the target suction superheat SSH obj Cannot be too large, otherwise the suction superheat SSH obj If it is too large, the high-frequency noise caused by the refrigerant impact will be more obvious, resulting in louder noise.

[0065] In some specific embodiments, during cooling, the target suction superheat SSH obj Satisfy: 1≤SSH obj ≤4. This setting can ensure that the suction superheat of the air conditioner outdoor unit 100 is neither too large nor too small, prevent the risk of liquid hammer, reduce noise, and ensure the reliability of the compressor 10.

[0066] Similarly, the target suction superheat SS during heating Hobj =(T O -7)×0.04+(20-T i )×0.07+1, where T O is the outdoor ambient temperature, T i is the indoor ambient temperature;

[0067] According to the current suction superheat SSH cur and target suction superheat SSH obj The difference between the two values ​​automatically controls the opening of the expansion valve until the target suction superheat SSH is reached. obj The opening corresponding to the state;

[0068] Specifically, the target suction superheat SSH can be obj Satisfy: 1≤SSH obj , that is, the target suction superheat SSH obj Cannot be too small, if the target suction superheat SSH obj If the suction superheat is too small, too much liquid refrigerant will remain in the compressor 10, which may easily cause the risk of liquid hammer and affect the reliability of the compressor 10. obj Cannot be less than 1.

[0069] The target suction superheat SSH obj Meets: SSH ob ≤4, that is, the target suction superheat SSH obj Cannot be too large, otherwise the suction superheat SSH obj If it is too large, the high-frequency noise caused by the refrigerant impact will be more obvious, resulting in louder noise.

[0070] In some specific embodiments, during heating, the target suction superheat SSH obj Satisfy: 1≤SSH obj ≤4. This setting can ensure that the suction superheat of the air conditioner outdoor unit 100 is neither too large nor too small, prevent the risk of liquid hammer, reduce noise, and ensure the reliability of the compressor 10.

[0071] According to some embodiments of the present invention, the air conditioner outdoor unit 100 may include a sound insulation member 60, and the sound insulation member 60 wraps the entire outer peripheral surface of the gas-liquid separator 30. Figure 5 and Figure 6 In the example, the sound insulation member 60 includes a first sound insulation board 601 and two second sound insulation boards 602. The first sound insulation board 601 is in sheet form and is connected to a cylindrical shape by a hook and loop fastener 603 and is sleeved on the outer periphery of the body 301. The two second sound insulation boards 602 are respectively located at the two ends of the axial direction of the first sound insulation board 601. The second sound insulation board 602 is connected to the first sound insulation board 601 by four hook and loop fasteners 603. One of the two second sound insulation boards 602 is located at the top of the body 301, and the other of the two second sound insulation boards 602 is located at the bottom of the body 301. Thus, the sound insulation member 60 can wrap the entire outer surface of the gas-liquid separator 30. Since the sound insulation member 60 has a high sound insulation effect, it can effectively seal and isolate the abnormal sound of the gas-liquid separator 30 from propagating outward.

[0072] Optionally, the sound insulation member 60 may be made of 10 mm thick needle-punched cotton and a 0.5 mm thick rubber plate bonded to the outside of the needle-punched cotton. The needle-punched cotton has a good sound absorption effect, and the rubber plate has a good sound insulation effect.

[0073] According to some embodiments of the present invention, the gas-liquid separator 30 has an inlet 3023 and an outlet 3034, the inlet 3023 is connected to the four-way valve 40 through the first pipeline 80, and the outlet 3034 is connected to the compressor 10 through the second pipeline 90. Figure 1-Figure 4 As shown, the free end of the second pipe section 3031 of the inlet pipe 303 is the inlet 3023, the free end of the first pipe section 3021 of the outlet pipe 302 is the outlet 3034, the two ends of the first pipeline 80 are respectively connected to the second pipe section 3031 and the four-way valve 40, and the two ends of the second pipeline 90 are respectively connected to the first pipe section 3021 and the air port of the compressor 10. Among them, the mixed refrigerant of the indoor unit of the air conditioner can flow into the body 301 of the gas-liquid separator 30 through the four-way valve 40, the first pipeline 80 and the inlet pipe 302, and the mixed refrigerant is separated into gaseous refrigerant and liquid refrigerant in the body 301, and the gaseous refrigerant flows to the compressor 10 through the outlet pipe 303 and the second pipeline 90 to ensure that the compressor 10 can work normally.

[0074] At least one of the first pipeline 80 and the second pipeline 90 is provided with a shock absorbing block 70. The shock absorbing block 70 may be provided only on the first pipeline 80 (not shown); or the shock absorbing block 70 may be provided only on the second pipeline 90 (not shown); or the shock absorbing block 70 may be provided on both the first pipeline 80 and the second pipeline 90 (not shown). Figure 1 shown).

[0075] Specifically, the shock absorbing block 70 may be composed of two shock absorbing sub-blocks, the shock absorbing block 70 is annular, and the outer wall of the shock absorbing block 70 is formed with an opening 702, and the shock absorbing block 70 may be fixed to the pipeline (i.e., the first pipeline 80 and the second pipeline 90) through the opening 702, and then fixed with a clamp. In this way, the vibration of the pipeline can be effectively suppressed and absorbed, the vibration transmitted to the gas-liquid separator 30 can be further reduced, and the noise can be further reduced, so that the noise value of the air conditioner outdoor unit 100 is reduced by about 1-2dB (A), which effectively improves the overall competitiveness of the product and effectively improves the actual user experience.

[0076] Optionally, the shock absorbing block 70 may be made of CR chloroprene rubber with a weight of 180 g and a Shore hardness of 60 degrees.

[0077] Furthermore, if Figure 1-Figure 4 As shown, the shock absorbing block 70 can be arranged near the bend of the first pipeline 80. Since the vibration of the first pipeline 80 is mostly generated from the bend of the first pipeline 80, by arranging the shock absorbing block 70 at the bend of the first pipeline 80, the amplitude and intensity of the vibration can be reduced from the source.

[0078] Likewise, if Figure 1-Figure 4As shown, the shock absorbing block 70 can be arranged near the bend of the second pipeline 90. Since the vibration of the second pipeline 90 is mostly generated from the bend of the second pipeline 90, by arranging the shock absorbing block 70 at the bend of the second pipeline 90, the amplitude and intensity of the vibration can be reduced from the source.

[0079] According to some specific embodiments of the present invention, Figure 8 As shown, a through hole 701 is formed on the shock absorbing block 70, and the through hole 701 penetrates along the axial direction of the shock absorbing block 70, and the central axis of the through hole 701 deviates from the central axis of the shock absorbing block 70. In other words, the shock absorbing block 70 adopts an eccentric design, which can better absorb the vibration of the pipeline and further reduce the vibration transmitted to the gas-liquid separator 30.

[0080] An air conditioner outdoor unit 100 according to another embodiment of the present invention will be described below with reference to the accompanying drawings.

[0081] like Figure 1-Figure 4 As shown, the air conditioner outdoor unit 100 may include a casing, an air inlet is formed on the outer periphery of the casing and an air outlet is formed on the top, and the casing has a receiving space to facilitate fixing the components of the air conditioner outdoor unit 100, and the casing can protect the above components. There may be multiple air inlets, and the multiple air inlets are arranged along the circumference of the casing to ensure that the air conditioner outdoor unit 100 has sufficient air intake when working.

[0082] The air conditioner outdoor unit 100 may include a compressor 10, which is disposed in a housing. The compressor 10 can compress a refrigerant gas in a high temperature and high pressure state and discharge the compressed refrigerant gas, and the discharged refrigerant gas flows into a condenser (i.e., an outdoor heat exchanger). The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0083] The air conditioner outdoor unit 100 may include an outdoor heat exchanger, which is arranged in the casing and is used to perform heat exchange with outdoor air. When the air conditioner outdoor unit 100 is working, outdoor air can flow into the casing 100 from the air inlet of the casing, and after exchanging heat with the outdoor heat exchanger to form a heat exchange airflow, it is discharged to the outside through the air outlet, and then the outdoor heat exchanger can be used to heat the airflow or cool the airflow to ensure that the low-temperature refrigerant flows to the air conditioner indoor unit during cooling, or the high-temperature refrigerant flows to the air conditioner indoor unit during heating, thereby achieving heating or cooling of the indoor air.

[0084] The air conditioner outdoor unit 100 may include a fan, which can be operated to drive air flow to speed up the flow rate of the air flow, thereby improving the heat exchange efficiency between the air and the outdoor heat exchanger to improve the cooling or heating efficiency of the air conditioner outdoor unit 100.

[0085] The air conditioner outdoor unit 100 may include a partition 20, which is arranged in the casing and between the outdoor heat exchanger and the compressor 10. The partition 20 can be used to separate the outdoor heat exchanger and the compressor 10. The outdoor heat exchanger and the compressor 10 can both be fixedly connected to the partition 20 to prevent the outdoor heat exchanger from shaking when the air conditioner outdoor unit 100 is working.

[0086] Specifically, the air conditioner outdoor unit 100 may include a casing, a compressor 10, an outdoor heat exchanger, a fan and a partition 20. The compressor 10, the outdoor heat exchanger, the fan and the partition 20 are all arranged in the casing. An air inlet and an air outlet are formed on the casing. The fan is arranged adjacent to the air inlet, wherein the fan can drive outdoor air to enter the casing from the air inlet, and at the same time, the refrigerant in the compressor 10 flows to the outdoor heat exchanger. After heat exchange with the outdoor heat exchanger, the outdoor air flows out through the air outlet to adjust the refrigerant temperature in the outdoor heat exchanger, so that the low-temperature refrigerant flows to the air conditioner indoor unit during cooling, or the high-temperature refrigerant flows to the air conditioner indoor unit during heating.

[0087] The air conditioner outdoor unit 100 may include a gas-liquid separator 30, which is arranged in the housing and is located on the same side of the partition 20 as the compressor 10. The gas-liquid separator 30 is connected to the compressor and the four-way valve 40 through pipelines. The gas-liquid separator 30 can separate the refrigerant in gaseous and liquid states, so that the liquid refrigerant can remain at the bottom of the gas-liquid separator 30, and the gaseous refrigerant can enter the compressor 10 from the upper pipeline, ensuring that the refrigerant entering the compressor 10 under various working conditions is as gaseous as possible, thereby ensuring the life and reliability of the compressor 10.

[0088] The air conditioner outdoor unit 100 may include a shock absorbing member 50, which is disposed between the partition 20 and the gas-liquid separator 30, and the shock absorbing member 50 is respectively abutted against the gas-liquid separator 30 and the partition 20. That is, the shock absorbing member 50 is clamped between the partition 20 and the gas-liquid separator 30, ensuring that the position of the shock absorbing member 50 is stable.

[0089] In this way, there is no rigid connection between the gas-liquid separator 30 and the partition 20, and the gas-liquid separator 30 and the partition 20 are indirectly connected through the shock absorber 50. Since the shock absorber 50 has good shock-absorbing and sound-insulating effects, even if the vibration generated by the compressor 10 and the pipeline can be transmitted to the gas-liquid separator 30, the existence of the shock absorber 50 can absorb the noise and buffer the vibration, so that the vibration will not be transmitted to the partition 20 and the casing, thereby effectively isolating the transmission and amplification of the vibration noise, thereby reducing the noise when the air conditioner is working indoors and outdoors, and improving the user experience.

[0090] Specifically, the air conditioner outdoor unit 100 may include a gas-liquid separator 30 and a shock absorber 50, the gas-liquid separator 30 and the shock absorber 50 are located on the same side of the thickness direction of the partition 20, the shock absorber 50 is fixed to the partition 20 by bolts, and the gas-liquid separator 30 is fixed to the shock absorber 50 by bolts. The shock absorber 50 can be made of rubber material. Due to the specific and unique viscoelastic properties of rubber itself, the shock absorber 50 has good shock absorbing performance, sound insulation performance and buffering performance, so that the vibration generated by the compressor 10 and the pipeline is only transmitted to the gas-liquid separator 30, and will not be further transmitted to the partition 20, thereby reducing the low-frequency noise generated by the partition 20 and the casing, and improving the user experience.

[0091] In this way, according to the air conditioner outdoor unit 100 of the utility model embodiment, a shock absorbing member 50 is arranged between the partition 20 and the gas-liquid separator 30, and the weight reducing member is respectively connected to the gas-liquid separator 30 and the partition 20. While fixing the gas-liquid separator 30 to the partition 20, the shock absorbing member 50 can absorb the vibration transmitted to the gas-liquid separator 30 by compression and pipelines, and avoid the vibration from being transmitted to the partition 20, thereby reducing the noise generated when the air conditioner outdoor unit 100 is working and improving the user experience.

[0092] Other structures and operations of the air conditioner outdoor unit 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0093] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0094] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0095] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0096] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air conditioner outdoor unit, comprising: A casing, wherein an air inlet is formed on the outer periphery of the casing and an air outlet is formed on the top; A compressor, the compressor being disposed in the casing; an outdoor heat exchanger, the outdoor heat exchanger being arranged in the casing and being used for exchanging heat with outdoor air; A fan, the fan being arranged in the casing, the fan driving the outdoor air to enter the casing from the air inlet, and the outdoor air flowing out through the air outlet after exchanging heat with the outdoor heat exchanger; a partition plate, the partition plate being arranged in the casing and between the outdoor heat exchanger and the compressor; It is characterized in that The air conditioner outdoor unit also includes: A gas-liquid separator, the gas-liquid separator is arranged in the casing and is located on the same side of the partition as the compressor, and the gas-liquid separator is connected to the compressor and the four-way valve through pipelines respectively; A shock absorbing member is arranged between the partition and the gas-liquid separator, and the shock absorbing member is connected to the gas-liquid separator and the partition respectively.

2. The air conditioner outdoor unit according to claim 1, characterized in that: The shock absorbing member comprises: a first damping section, wherein the first damping section is connected to the gas-liquid separator; Two second shock absorbing sections, the two second shock absorbing sections are respectively arranged on both sides of the length direction of the first shock absorbing section, and each of the second shock absorbing sections is connected to the partition; Wherein, in the thickness direction of the first shock absorbing section, a side surface of the first shock absorbing section adjacent to the gas-liquid separator protrudes beyond a side surface of the second shock absorbing section adjacent to the gas-liquid separator.

3. The air conditioner outdoor unit according to claim 2, characterized in that: In a thickness direction of the first shock absorbing section, the thickness of the first shock absorbing section is greater than the thickness of the second shock absorbing section.

4. The air conditioner outdoor unit according to claim 2, characterized in that: In the thickness direction of the first shock absorbing section, a side surface of the first shock absorbing section adjacent to the partition plate is recessed toward the gas-liquid separator to form an avoidance groove.

5. The air conditioner outdoor unit according to any one of claims 1 to 4, characterized in that: The gas-liquid separator comprises: ontology; an outlet pipe, the outlet pipe comprising a first pipe section and a U-shaped pipe section connected to each other, the first pipe section is located outside the body, and at least a portion of the U-shaped pipe section is located inside the body; The inlet pipe comprises a second pipe segment, a third pipe segment and a fourth pipe segment connected to each other, the second pipe segment is located outside the body, the fourth pipe segment and at least part of the third pipe segment are located inside the body, the second pipe segment and the fourth pipe segment both extend in a radial direction of the third pipe segment away from the third pipe segment, and the angle between the second pipe segment and the fourth pipe segment is an acute angle.

6. The air conditioner outdoor unit according to any one of claims 1 to 4, characterized in that: Also includes: A sound insulating member wraps the entire outer peripheral surface of the gas-liquid separator.

7. The air conditioner outdoor unit according to any one of claims 1 to 4, characterized in that: The gas-liquid separator has an inlet and an outlet, the inlet is connected to the four-way valve through a first pipeline, the outlet is connected to the compressor through a second pipeline, and at least one of the first pipeline and the second pipeline is provided with a shock absorbing block.

8. The air conditioner outdoor unit according to claim 7, characterized in that: The shock absorbing block is arranged adjacent to the bend of the first pipeline; and / or The shock absorbing block is arranged adjacent to the bending position of the second pipeline.

9. The air conditioner outdoor unit according to claim 7, characterized in that: A through hole is formed on the shock absorbing block. The through hole penetrates the shock absorbing block along the axial direction, and the central axis of the through hole deviates from the central axis of the shock absorbing block.

10. An air conditioner outdoor unit, comprising: A casing, wherein an air inlet is formed on the outer periphery of the casing and an air outlet is formed on the top; A compressor, the compressor being disposed in the casing; an outdoor heat exchanger, the outdoor heat exchanger being arranged in the casing and being used for exchanging heat with outdoor air; A fan, the fan being arranged in the casing, the fan driving the outdoor air to enter the casing from the air inlet, and the outdoor air flowing out through the air outlet after exchanging heat with the outdoor heat exchanger; a partition plate, the partition plate being arranged in the casing and between the outdoor heat exchanger and the compressor; It is characterized in that The air conditioner outdoor unit also includes: A gas-liquid separator, the gas-liquid separator is arranged in the casing and is located on the same side of the partition as the compressor, and the gas-liquid separator is connected to the compressor and the four-way valve through pipelines respectively; A shock absorbing member is arranged between the partition and the gas-liquid separator, and the shock absorbing member is respectively abutted against the gas-liquid separator and the partition.

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