CN214036104U - Scroll compressor, refrigeration equipment and vehicle - Google Patents

Abstract

The utility model belongs to the technical field of refrigeration plant, a scroll compressor, refrigeration plant and vehicle are related to. The scroll compressor comprises an oil content device with a shell and an oil content insertion pipe, wherein an oil content cavity and an oil storage pool are arranged in the shell, the oil content insertion pipe is arranged in the oil content cavity, an oil discharge hole is formed in the cavity wall of the oil content cavity, a refrigerant outlet is formed in the shell, the overflowing area S1 of the refrigerant outlet, the overflowing area S2 of the air inlet end of the oil content insertion pipe and the overflowing area S3 of the oil discharge hole meet the condition that S2/S1 is not more than 0.05 and not more than 0.5 and S3/S1 is not more than 0.02, so that the refrigerant is separated and then discharged from the refrigerant outlet at a higher speed, the internal pressure of the oil content cavity is quickly reduced, the pressure acting on the refrigerant is reduced, the pressure and the flow speed when the refrigerant is discharged are reduced, the impact on the refrigerant in the oil storage pool is reduced, the oil return hole of the oil storage pool is ensured to be always immersed by the refrigerant, the refrigerant cannot be leaked through the oil return hole, the oil return of the compressor is sufficient, and the friction pair can be effectively lubricated.

Description

Scroll compressor, refrigeration equipment and vehicle

Technical Field

The utility model relates to a refrigeration plant technical field, concretely relates to scroll compressor, refrigeration plant and vehicle.

Background

The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The scroll compressor is a positive displacement compressor with high efficiency, low noise and smooth operation, and is widely used in an automotive air conditioning system as a third-generation vehicle-mounted compressor. During the use of the scroll compressor, the refrigerant oil is required to be provided to lubricate a friction pair in the scroll compressor so as to reduce noise generated when the friction pair works. In the prior art, an oil separation structure and an oil storage tank are arranged in a scroll compressor, the oil separation structure is used for separating mixed fluid of refrigerant and refrigeration oil discharged from a compression cavity of the scroll compressor, and the oil storage tank is arranged below the oil separation structure and is used for storing the refrigeration oil separated and discharged by the oil separation structure; meanwhile, a throttling oil return structure is arranged between the oil storage pool and an oil return channel of the scroll compressor, and an oil return hole is formed in the pool bottom of the oil storage pool and connected with an inlet of the throttling oil return structure, so that the refrigeration oil in the oil storage pool finally returns to the oil return channel of the scroll compressor through the throttling oil return structure to lubricate each friction pair in the scroll compressor.

In the in-service use process, because the oil content structure supplies the oil drain hole of frozen oil exhaust to just setting up the oil storage pool, through oil content structure separation and can erode the existing frozen oil in the oil storage pool from the oil drain hole exhaust frozen oil, the frozen oil churns, lead to the oil storage pool to be unable by the frozen oil complete submergence with the oil return hole that the throttle oil return structure links to each other, the refrigerant is direct to reveal to scroll compressor's the side of breathing in from the throttle oil return structure, the blow-by phenomenon appears when the oil return promptly, the refrigerant is revealed and is led to scroll compressor's refrigerating output and is descended. And the refrigerant can occupy the fluid conveying space of the throttling oil return structure when leaking through the throttling oil return structure, the volume of the refrigeration oil conveyed by the throttling oil return structure is reduced, the ratio of the refrigeration oil in the oil return is reduced, so that the friction pair cannot be effectively lubricated, the power consumption of the scroll compressor is increased, and the compression efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a scroll compressor, refrigeration plant and vehicle, the refrigeration oil in the oil extraction hole exhaust refrigeration oil that aims at solving scroll compressor's oil content structure among the prior art erodees the oil storage pool, leads to in the oil return refrigeration oil to account for the reduction, leads to the vice technical problem that can't obtain effective lubrication, scroll compressor consumption increase, compression efficiency reduction of friction.

In order to solve the above technical problem, an embodiment of the present invention adopts a technical solution that:

the utility model provides a scroll compressor, be provided with the oil content device, the oil content device includes casing and oil content intubate, be provided with oil storage pool and oil content chamber in the casing, the oil content intubate is located the oil content intracavity and is had the inlet end and give vent to anger the end, the oil drain hole has been seted up on the chamber wall in oil content chamber, the oil drain hole is linked together with the oil storage pool, the refrigerant export has been seted up on the casing, the end of giving vent to anger of oil content intubate is linked together with the refrigerant export, the area of overflowing S1 of refrigerant export, the area of overflowing S2 of the inlet end of oil content intubate, and satisfy the following relation between the area of overflowing S3 of oil drain hole:

0.05≤S2/S1≤0.5，0.02≤S3/S1≤0.3。

in some embodiments, the following relationship is satisfied between the flow area S2 of the air inlet end of the oil insertion pipe and the flow area S3 of the oil drain hole:

0.08≤S3/S2≤0.8。

in some embodiments, an oil outlet channel is further disposed in the housing, the oil outlet channel has an oil inlet and an oil outlet, the oil outlet is located above the oil inlet, the oil inlet is communicated with the oil drain hole, and the oil outlet is communicated with the oil reservoir.

In some embodiments, the following relationship is satisfied between the flow area S4 of the oil outlet and the flow area S3 of the oil drain hole:

1≤S4/S3≤7。

in some embodiments, the flow area of the oil outlet channel gradually increases or remains constant along the direction from the oil inlet to the oil outlet.

In some embodiments, the oil outlet is disposed opposite the floor of the oil reservoir;

or the oil outlet is arranged towards the bottom of the oil storage pool, a buffer part is arranged on the pool wall of the oil storage pool, and the buffer part is positioned below the oil outlet and forms a gap with the pool wall of the oil storage pool.

In some embodiments, the wall of the oil storage tank is provided with an exhaust hole, the exhaust hole is communicated with the refrigerant outlet, and the flow area S5 of the exhaust hole and the flow area S2 of the air inlet end of the oil content insertion tube satisfy the following relationship:

0.015≤S5/S2≤1。

in some embodiments, the refrigerant outlet is a diverging opening.

The utility model provides an above-mentioned one or more technical scheme in the scroll compressor have one of following technological effect at least: the utility model provides a scroll compressor, include the oil content device of oil content intubate through the setting, and set up oil storage pool and oil content chamber in the casing of oil content device, locate the oil content intracavity with the oil content intubate, set up the oil drain hole simultaneously on the chamber wall in oil content chamber, set up the refrigerant export on the casing, and link to each other oil drain hole and oil storage pool, the end of giving vent to anger with the oil content intubate links to each other with the refrigerant export, and simultaneously, the area of overflowing S1 of messenger' S refrigerant export, the area of overflowing S2 of the inlet end of oil content intubate, and satisfy the proportional relation between the area of overflowing S3 of oil drain hole: S2/S1 is more than or equal to 0.05 and less than or equal to 0.5, and S3/S1 is more than or equal to 0.02 and less than or equal to 0.3, namely, the flow area of the refrigerant outlet is larger than that of the air inlet end of the oil content insertion pipe, and the flow area of the refrigerant outlet is larger than that of the oil drain hole, so that the refrigerant separated after the fluid entering the oil content cavity collides with the wall of the oil content insertion pipe and the wall of the oil sub-cavity can be discharged through the refrigerant outlet at a higher speed, the internal pressure of the oil sub-cavity is timely reduced, the pressure acting on the frozen oil discharged through the oil drain hole is reduced, the flow rate and the pressure of the frozen oil discharged from the oil drain hole are reduced, the impact force on the frozen oil in the oil storage pool when the frozen oil is discharged through the oil drain hole is reduced, the influence of the frozen oil in the oil storage pool due to oil entering disturbance is small, the frozen oil in the oil storage pool is ensured not to be overturned due to oil entering, and the oil return hole of the oil storage pool is always ensured to be immersed, the refrigerant is prevented from leaking into the oil return channel through the oil return hole, namely, gas blowby is avoided during oil return, sufficient oil return of the scroll compressor is ensured, the friction pair of the scroll compressor is effectively lubricated, and therefore the compression efficiency of the scroll compressor is improved.

The embodiment of the utility model provides an another technical scheme who adopts is:

a refrigeration device comprises the scroll compressor.

The utility model provides a refrigeration plant compares with prior art, has following beneficial effect at least: the utility model provides a refrigeration plant, through using foretell scroll compressor, because the oil gallery of scroll compressor's oil storage pond can be all the time by the refrigeration oil submergence, the refrigerant can not reveal to scroll compressor's oil return passage through the oil gallery in, the blowby phenomenon can not appear in scroll compressor promptly, the scroll compressor oil return is sufficient, scroll compressor's compression efficiency improves, refrigeration plant's refrigerating capacity promotes.

The embodiment of the utility model provides an another technical scheme who adopts is:

a vehicle comprises the scroll compressor.

The utility model provides a vehicle, compared with the prior art, has following beneficial effect at least: the utility model provides a vehicle, through using foretell refrigeration plant, in vehicle refrigeration process, because refrigeration plant's refrigerating output and refrigeration efficiency can maintain higher level all the time to can effectively shorten the inside cooling of vehicle consuming time, the cooling speed of vehicle promotes, and the promotion is experienced with the car.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a cross-sectional view of a scroll compressor according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a scroll compressor according to another embodiment of the present invention;

FIG. 3 is a partial cross-sectional view of the scroll compressor shown in FIG. 2;

FIG. 4 is a partial cross-sectional view of a scroll compressor according to another embodiment of the present invention;

FIG. 5 is a schematic view of the seal of the scroll compressor shown in FIG. 4 assembled with the fixed scroll of the scroll compressor;

FIG. 6 is a schematic view of the seal shown in FIG. 4;

fig. 7 is a schematic structural view of a fixed scroll in the structure shown in fig. 4;

FIG. 8 is a schematic diagram showing the relationship between the amount of blow-by gas and the amount of S3/S2;

FIG. 9 is a schematic graph showing the relationship between S4/S3 and the outlet flow rate of the refrigerant oil exiting the oil outlet;

FIG. 10 is a schematic diagram of the relationship between S5/S2 and the pressure difference Δ P between the oil outlet and the oil inlet of the oil outlet channel.

Wherein, in the figures, the respective reference numerals:

10-a housing; 100-oil separation device; 101-a housing; 1011-connecting face; 1012-a receiving groove; 1013-connecting channels; 1014-oil blocking part; 1015-oil retaining surface; 1016-oil separation chamber; 1017-oil drain hole; 1018-rectification chamber; 1019-oil inlet; 1020-a mixed fluid inlet; 1021-streamlined wall surface; 11-oil cannula; 111-an air inlet end; 112-air outlet end; 12-an oil reservoir; 121-oil return hole; 122-vent hole; 123-ribs; 13-an oil outlet channel; 131-an oil inlet; 132-an oil outlet; 133-an introduction section; 134-a discharge section; 14-refrigerant outlet; 15-static vortex disc; 151-a first connecting groove; 152-a second communication channel; 153-mixed fluid outlet; 16-a seal; 161-avoidance of vacancy; 17-a groove; 18-an orbiting scroll; 20-an oil return passage; 30-a compression chamber; 40-throttling oil return structure; 50-air entry; 60-an air suction cavity; 70-a compression mechanism; 80-a drive mechanism.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is made in conjunction with fig. 1-10 and the embodiments, and the present invention is further described in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, 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, "a plurality" means two or more unless specifically limited otherwise.

Reference throughout the specification to "one embodiment," "some embodiments," or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the invention. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As shown in fig. 1-7, an embodiment of the present invention provides a scroll compressor, which may include, but is not limited to, as shown in fig. 1 and 2: in the casing 10, an air inlet 50 is opened on the casing 10, and a compression mechanism 70, a driving mechanism 80, and the like are provided in the casing 10.

The compression mechanism 70 may include, but is not limited to, an orbiting scroll 18, a fixed scroll 15, and an anti-rotation structure, wherein the fixed scroll 15 may include an end plate and a fixed wrap, and the orbiting scroll 18 may include an end plate and an orbiting wrap, and the fixed wrap and the orbiting wrap are engaged with each other, thereby defining a compression chamber 30 of the scroll compressor (i.e., a working chamber of the scroll compressor) between the fixed scroll and the orbiting scroll. The rotation preventing means serves to limit rotation of the orbiting scroll 18 while allowing the orbiting scroll 18 to perform a revolving translational motion with respect to the fixed scroll 15. The driving mechanism 80 may include, but is not limited to, a motor composed of a stator and a rotor, and a crankshaft, wherein the crankshaft may be integrally rotatable with the rotor, and the crankshaft may be provided at an upper end with an eccentric pin adapted to drive the orbiting scroll 18, and the rotor drives the orbiting scroll 18 to rotate by the eccentric pin. The suction port 50 is opened in the casing 10 and communicates with the compression chamber 30, and a low-pressure refrigerant (working fluid) from an external working circuit of the casing 10 is sucked into the compression mechanism 70 through the suction port 50 and compressed.

The scroll compressor is further provided with an oil content device 100, the oil content device 100 comprises a shell 101 and an oil content insertion pipe 11, and the oil content device 100 can be integrally arranged in the shell 10 or arranged outside the shell 10 and connected with other structures of the scroll compressor through the shell 101. An oil storage tank 12 and an oil separation chamber 1016 are arranged in the casing 101, a mixed fluid of refrigerant and frozen oil discharged from the compression chamber 30 is output into the oil separation chamber 1016 to be separated from oil and gas, specifically, an oil separation tube 11 is arranged in the oil separation chamber 1016 and has an air inlet end 111 and an air outlet end 112, an oil inlet 1019 for the mixed fluid to enter and an oil outlet 1017 for the frozen oil to discharge are arranged on the wall of the oil separation chamber 1016, the oil outlet 1017 is communicated with the oil storage tank 12, the mixed fluid enters the oil separation chamber 1016 from the oil inlet 1019 and then spirally flows and collides with the wall and the oil separation tube 11, in this embodiment, the flow path of the mixed fluid is shown by dotted arrows in fig. 1 to 4, during the flow process of the mixed fluid, the density of the frozen oil and the refrigerant is different, so that the frozen oil and the refrigerant can be forcibly separated under the action of centrifugal force, the separated oil enters the oil separation tube 11 from the air inlet end 111 of the oil separation tube 11 and is discharged through the oil separation tube 112, the separated frozen oil is discharged through the oil discharge hole 1017 and stored in the oil reservoir 12. Meanwhile, a refrigerant outlet 14 is formed in the housing 101, and the air outlet 112 of the oil content insertion tube 11 is communicated with the refrigerant outlet 14, so that the refrigerant discharged from the air outlet of the oil content insertion tube 11 is discharged to the external working circuit of the scroll compressor through the refrigerant outlet 14.

Furthermore, an oil return channel 20 is further formed in the casing 10 of the scroll compressor, an oil return hole 121 for discharging the refrigeration oil is formed in the wall of the oil storage pool 12, the oil return channel 20 is communicated with the oil return hole 121, a throttling oil return structure 40 is arranged between the oil return channel 20 and the oil storage pool 12, and the refrigeration oil in the oil storage pool 12 flows through the throttling oil return structure 40 and is conveyed into the oil return channel 20 to lubricate each friction pair of the scroll compressor.

When the scroll compressor works, under the condition that the motor is electrified, the rotor rotates to drive the crankshaft to synchronously rotate, the crankshaft drives the movable scroll 18 to perform rotary translational motion through the eccentric pin, meanwhile, a refrigerant, namely a working fluid enters the air suction cavity 60 of the compression mechanism 70 through the air suction port 50, the refrigerant is further sucked into the compression cavity 30 from the air suction cavity 60 along with the continuous rotary translational motion of the movable scroll 18, and at the moment, the refrigerant entering the compression cavity 30 is compressed and the pressure is increased. When the refrigerant is compressed to reach a predetermined compression ratio, the refrigerant is discharged from the compression cavity 30, for example, a mixed fluid outlet 153 communicated with the oil inlet 1019 is formed in the fixed scroll 15, the refrigerant is discharged through the mixed fluid outlet 153, and the refrigerant oil lubricating the friction pair is carried by the refrigerant and enters the compression cavity 30 during the compression of the refrigerant. Therefore, the fluid discharged from the mixed fluid outlet 153 of the fixed scroll 15 is a mixed fluid of the refrigerant and the refrigeration oil, and after being discharged, the mixed fluid needs to be processed to separate the refrigerant and the refrigeration oil, so that the mixed fluid of the refrigerant and the refrigeration oil is conveyed into the oil separation chamber 1016 to separate the refrigerant and the refrigeration oil, the separated refrigerant is discharged out of the scroll compressor from the refrigerant outlet 14, the separated refrigeration oil enters the oil storage tank 12, further flows into the throttling oil return structure 40 through the oil return hole 121, and enters the oil return passage 20 to lubricate the friction pair, thereby realizing the recycling of the refrigeration oil.

In an embodiment of the present invention, as shown in fig. 1 and fig. 2, a proportional relationship between the flow area S1 of the refrigerant outlet 14, the flow area S2 of the air inlet 111 of the oil insertion tube 11, and the flow area S3 of the oil drain hole 1017 is 0.05 ≤ S2/S1 ≤ 0.5, and 0.02 ≤ S3/S1 ≤ 0.3.

Therefore, the utility model discloses scroll compressor satisfies the proportional relation between the area of flow S1, the area of flow S2 of the inlet end 111 of oil content intubate 11 and the area of flow S3 of oil drain 1017 through setting up refrigerant export 14: S2/S1 is more than or equal to 0.05 and less than or equal to 0.5, and S3/S1 is more than or equal to 0.02 and less than or equal to 0.3, namely, when the scroll compressor is designed and manufactured, the ratio of the flow area S2 of the air inlet end 111 of the oil insertion pipe 11 to the flow area S1 of the refrigerant outlet 14 is designed within the range of 0.05-0.5, and the ratio of the flow area S3 of the oil drain hole 1017 to the flow area S1 of the refrigerant outlet 14 is designed within the range of 0.02-0.3. Thus, the flow area of the refrigerant outlet 14 is larger than the flow area of the air inlet end 111 of the oil content insertion tube 11, and the flow area of the refrigerant outlet 14 is larger than the flow area of the oil drain hole 1017, so that the refrigerant separated after the fluid entering the oil content cavity 1016 collides with the wall of the oil content insertion tube 11 and the oil content cavity 1016 can be discharged through the refrigerant outlet 14 at a high speed, the internal pressure of the oil content cavity 1016 is timely reduced, the pressure acting on the frozen oil discharged through the oil drain hole 1017 is reduced, the flow speed and the pressure of the frozen oil discharged from the oil drain hole 1017 are reduced, the impact force on the frozen oil existing in the oil storage pool 12 when the frozen oil is discharged through the oil drain hole 1017 is reduced, the influence of oil inlet disturbance on the frozen oil in the oil storage pool 12 is small, the frozen oil in the oil storage pool 12 is ensured not to be overturned due to oil inlet, and the oil return hole 121 of the oil storage pool 12 is ensured to be always immersed by the frozen oil, the refrigerant is prevented from leaking into the oil return channel 20 of the scroll compressor through the oil return hole 121, namely, gas blowby is avoided during oil return, sufficient oil return of the scroll compressor is ensured, and the friction pair of the scroll compressor is ensured to be effectively lubricated, so that the compression efficiency of the scroll compressor is improved.

In some embodiments, the ratio between the flow area S2 of the air inlet end 111 of the oil insertion tube 11 and the flow area S1 of the refrigerant outlet 14, i.e., S2/S1, may be 0.05, 0.1, 0.2, 0.3, 0.4, or the like, and the ratio between the flow area S3 of the oil drain hole 1017 and the flow area S1 of the refrigerant outlet 14, i.e., S3/S1, may be 0.02, 0.05, 0.08, 0.1, 0.15, 0.2, 0.25, or 0.3, or the like.

Specifically, in the present embodiment, as shown in fig. 1 and fig. 2, the oil drain hole 1017 is opened at the bottom of the oil sub-chamber 1016 near the oil storage pool 12, the refrigerant outlet 14 is opened at the top of the oil sub-chamber 1016 far from the oil storage pool 12, the air inlet end 111 of the oil insertion tube 11 is disposed toward the oil drain hole 1017, and the air outlet end 112 is disposed toward the refrigerant outlet 14.

In another embodiment of the present invention, as shown in fig. 1 and fig. 2, a proportional relationship between the flow area S2 of the air inlet end 111 of the oil insertion tube 11 and the flow area S3 of the oil drain hole 1017 is further satisfied, i.e., 0.08 ≤ S3/S2 ≤ 0.8, i.e., the ratio of the flow area S3 of the oil drain hole 1017 to the flow area S2 of the air inlet end 111 of the oil insertion tube 11 is designed within a range of 0.08-0.8. Specifically, as shown in FIG. 8, it shows S3/S2 with the amount of blow-by q³(instant messaging)The amount of refrigerant leaking into the oil return passage 20 of the scroll compressor through the oil return hole 121), it is easy to see from the figure that the blow-by amount gradually increases with the increase of S3/S2, and thus, the ratio of S3 to S2 is selected and designed within the range of 0.08-0.8, and on the premise of considering the manufacturing error of the parts, the blow-by amount is relatively small, so that the adverse effect on the backflow volume of the refrigerant oil is not generated, that is, within this range, the blow-by amount leaking through the oil return hole 121 of the oil storage tank 12 has little influence on the ratio of the refrigerant oil in the oil return.

In some specific embodiments, the ratio of the flow area S3 of the oil drainage hole 1017 to the flow area S2 of the air inlet end 111 of the oil insertion tube 11, i.e., S3/S2, may be 0.08, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, or 0.8, etc.

In another embodiment of the present invention, as shown in fig. 2, fig. 3 and fig. 4, an oil outlet channel 13 is further disposed in the casing 101 of the oil content device 100, the oil outlet channel 13 is connected to the oil drain hole 1017, and the frozen oil discharged from the oil drain hole 1017 flows through the oil outlet channel 13 and is then discharged into the oil storage pool 12. Specifically, the oil outlet channel 13 has an oil inlet 131 and an oil outlet 132 which are oppositely arranged, the oil outlet 132 is located above the oil inlet 131, in this embodiment, the oil outlet 132 is located above the oil inlet 131, that is, the oil outlet 132 is located directly above or obliquely above the oil inlet 131 in the gravity direction, and after the frozen oil flows into the oil outlet channel 13 from the oil inlet 131, the frozen oil needs to flow to be discharged from the oil outlet 132 against the flow direction of the gravity direction. Wherein, the oil inlet 131 is communicated with the oil drain hole 1017, the oil outlet 132 is communicated with the oil storage pool 12, and the oil outlet 132 is located above the oil reservoir area of the oil reservoir 12, the oil return hole 121 is located in the oil reservoir area, the oil storage area of the oil storage tank 12 is an area where the freezing oil is actually stored in the oil storage tank 12 when the scroll compressor of the present embodiment is used, in this way, the oil outlet 132 is located above the oil storage area, so as to ensure that the oil outlet 132 is always located above the liquid level of the refrigeration oil in the oil storage tank 12, thus, as the amount of frozen oil stored in the reservoir 12 increases, the frozen oil will not flood the oil outlet 132 at all times, thereby preventing the oil outlet 132 from extending into the refrigeration oil to discharge the refrigeration oil, preventing the refrigeration oil from generating air bubbles when the refrigeration oil is discharged to cause the refrigeration oil to be overturned, or air bubbles enter the throttling oil return structure 40 through the oil return hole 121 and occupy the internal space of the throttling oil return structure 40.

In this way, by providing the oil outlet passage 13 in the housing 101 of the oil content device 100, and communicating the oil inlet 131 of the oil outlet passage 13 with the oil discharge hole 1017 of the oil content chamber 1016, the oil outlet 132 of the oil outlet passage 13 is communicated with the oil reservoir 12, so that the frozen oil discharged from the oil content chamber 1016 is discharged from the oil discharge hole 1017, enters the oil outlet passage 13 through the oil inlet 131, and then flows into the oil reservoir 12 through the oil outlet 132 of the oil outlet passage 13, and in the present embodiment, the flow path of the frozen oil is as shown by the broken line arrow in fig. 1 to 4. Because the oil outlet 132 of the oil outlet channel 13 is arranged above the oil inlet 131 along the gravity direction, the refrigerant oil entering the oil outlet channel 13 flows along the direction opposite to the gravity direction, so that the pressure of the refrigerant oil can be effectively reduced, and the outflow speed of the refrigerant oil is reduced, so that the flow speed and the pressure of the refrigerant oil discharged from the oil outlet 132 are reduced, the impact force on the existing refrigerant oil in the oil storage pool 12 is reduced when the refrigerant oil is discharged, and a better guarantee is further provided for maintaining the stability of the liquid level of the existing refrigerant oil in the oil storage pool 12.

Further, in the present embodiment, as shown in fig. 2, 3 and 4, a proportional relationship of 1 ≦ S4/S3 ≦ 7 is satisfied between the flow area S4 of the oil outlet 132 of the oil outlet channel 13 and the flow area S3 of the oil drain hole 1017, that is, a ratio of the flow area S4 of the oil outlet 132 of the oil outlet channel 13 to the flow area S3 of the oil drain hole 1017 is designed within a range of 1-7. In this way, the flow area S4 of the oil outlet 132 of the oil outlet passage 13 is larger than the flow area S3 of the oil drain hole 1017, and when the frozen oil flows out from the oil outlet 132, the flow area suddenly increases, the flow speed is further slowed, and the frozen oil discharged from the oil outlet 132 is further reduced in impact on the frozen oil level in the oil storage pool 12.

Specifically, as shown in fig. 9, which shows the relationship between S4/S3 and the outlet flow rate of the refrigerant flowing out of the oil outlet 132, it is apparent from the figure that the outlet flow rate gradually decreases with the increase of S4/S3, and thus, the ratio of S4 to S3 is selected and designed within the range of 1 to 7, and under the premise of considering the manufacturing error of the component, the flow rate of the refrigerant flowing out of the oil outlet 132 of the oil outlet channel 13 is small, so as not to adversely affect the return volume of the refrigerant, that is, within this range, the proportion of the amount of blowby gas leaking through the oil return hole 121 of the oil reservoir 12 to the refrigerant in the return oil is not greatly affected.

In some specific embodiments, the ratio between the flow area S4 of the oil outlet 132 of the oil outlet channel 13 and the flow area S3 of the oil drain hole 1017, i.e., S4/S3, may be 1, 2, 3, 4, 0.4, 5, 6, or 7, etc.

In another embodiment of the present invention, as shown in fig. 2, fig. 3 and fig. 4, the air vent 122 has been opened on the wall of the oil storage tank 12, the air vent 122 is communicated with the refrigerant outlet 14, after the refrigerant oil enters the oil storage tank 12, because the pressure and the temperature are relatively reduced, the refrigerant partially dissolved in the refrigerant oil is separated out, therefore, the air vent 122 for separating out the refrigerant is opened on the wall of the oil storage tank 12, the air vent 122 is communicated with the refrigerant outlet 14 on the casing 10, the refrigerant separated out from the refrigerant oil and entering the oil storage tank 12 is merged into the refrigerant outlet 14 through the air vent 122 to be discharged, in this embodiment, the flow path of the refrigerant is shown by the solid arrow in fig. 1 to fig. 4.

In the embodiment, when the refrigerant oil flows through the oil outlet channel 13, the refrigerant dissolved in the refrigerant oil is separated out due to the pressure reduction of the refrigerant oil, and the separated refrigerant is discharged through the exhaust hole 122, so as to avoid the refrigerant from staying in the oil storage tank 12 to increase the internal pressure of the oil storage tank 12 until the separated refrigerant is dissolved in the refrigerant oil again; more importantly, the vent hole 122 is arranged to discharge the refrigerant, so that the pressure Pk ' at the oil inlet 131 of the oil outlet channel 13 is always greater than the pressure Pd ' at the oil outlet 132, that is, a pressure difference (Pk-Pd ' >0) is formed between the oil outlet 132 and the oil inlet 131 of the oil outlet channel 13, and under the action of the pressure difference, the refrigerant oil is ensured to be discharged from the oil outlet 132 of the oil outlet channel 13, so that even if the refrigerant oil flows along the direction opposite to the gravity direction, the refrigerant oil can still smoothly flow out of the oil outlet 132, and the condition of flow breaking or backflow is avoided.

Further, in the present embodiment, as shown in fig. 2, 3 and 4, a proportional relationship of 0.015 ≦ S5/S2 ≦ 1 is satisfied between the flow area S5 of the gas vent 122 and the flow area S2 of the gas inlet end 111 of the oil insertion tube 11, that is, a ratio of the flow area S5 of the gas vent 122 to the flow area S2 of the gas inlet end 111 of the oil insertion tube 11 is designed within a range of 0.015 to 1. Specifically, as shown in fig. 10, which shows a relationship between S5/S2 and Pk-Pd' (a pressure difference Δ P between the oil outlet 132 and the oil inlet 131 of the oil outlet channel 13), it is apparent from the figure that the values of S5/S2 are in the range of 0.015 to 1, and the pressure difference Δ P is greater than zero, that is, the refrigerant precipitated from the frozen oil can be ensured to be discharged through the exhaust hole 122 under the pressure action; moreover, as the greater the pressure difference Δ P, the faster the flow speed of the refrigeration oil in the oil outlet channel 13, on the premise that the pressure difference Δ P meets the refrigerant discharge requirement, the ratio of S5/S2 is prevented from being set too large, so that the refrigeration oil in the oil outlet channel 13 is prevented from accelerating to flow under the action of too large pressure, the flow speed of the refrigeration oil along the oil outlet channel 13 is ensured, and the oil outlet stability of the oil outlet channel 13 is ensured; in addition, the ratio of S5/S2 is selected in the value range, so that overflow from the oil outlet 132 of the oil outlet channel 13 through the vent hole 122 due to overlarge hole diameter of the vent hole 122 is avoided.

In some specific embodiments, the ratio of the flow area S5 of the vent hole 122 to the flow area of the air inlet end 111 of the oil insertion tube 11, i.e., S5/S2, may be 0.015, 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 1.0, or the like.

In another embodiment of the present invention, as shown in fig. 2, fig. 3 and fig. 4, from the oil inlet 131 to the oil outlet 132 of the oil outlet channel 13, the flow area of the oil outlet channel 13 gradually increases, that is, the flow area of the oil outlet channel 13 gradually increases along the flow direction of the refrigeration oil. In this way, in the process that the frozen oil flows along the oil outlet channel 13, along with the gradual increase of the flow area, the flow speed of the frozen oil is gradually reduced, and the speed of the frozen oil discharged from the oil outlet 132 is reduced, so that the impact of the frozen oil in the oil storage tank 12 when the frozen oil is discharged from the oil outlet 132 can be further reduced; furthermore, the refrigerant flow rate is reduced, and the amount of refrigerant precipitated during the flow of refrigerant can be further increased, thereby further reducing the amount of refrigerant dissolved in the refrigerant entering the oil reservoir 12 and increasing the ratio of refrigerant entering the oil return passage 20 of the scroll compressor.

Alternatively, in some other embodiments, the flow area of the oil outlet channel 13 from the oil inlet 131 to the oil outlet 132 may also be constant, that is, the flow area of the oil outlet channel 13 is constant along the flow direction of the refrigerant oil, so that the flow rate of the refrigerant oil can also gradually decrease as the refrigerant oil flows through the oil outlet channel 13 due to the on-way resistance of the oil outlet channel 13.

In another embodiment of the present invention, as shown in fig. 2, fig. 3 and fig. 4, the oil outlet channel 13 is a curved channel having at least one curved section, the oil outlet channel 13 is set to be a curved channel having a curved section, the refrigerant oil flows into the oil outlet channel 13 at a high speed, and hits the channel wall when the curved section turns, the local resistance received by the refrigerant oil during the flowing process is increased, so as to further reduce the flow rate and pressure of the refrigerant oil. So, the setting has the area of the crooked section of the play oil passageway 13 of crooked section can enough rational utilization, makes the dwell time of refrigeration oil in the passageway 13 of producing oil increase, and more messenger's precipitation of the refrigerant in the refrigeration oil can increase the local resistance of passageway 13 of producing oil again, effectively reduces the velocity of flow and the pressure of refrigeration oil.

Further, in this embodiment, the oil outlet channel 13 is preferably an "L" shaped channel provided with a curved section, and the curved section of the "L" shaped channel is rounded to avoid the refrigerant oil from impacting the channel wall too much and wearing the channel. Of course, in other embodiments, the oil outlet channel 13 may also be an "S" shaped channel provided with a plurality of curved sections, or the like, or other channels with one or more curved sections, and the specific arrangement form of the oil outlet channel 13 is not limited herein.

In another embodiment of the present invention, as shown in fig. 2 and 3, a plurality of ribs 123 are disposed on the wall of the oil storage pool 12 at intervals, one end of each rib 123 faces the top of the oil storage pool 12, and the other end of each rib 123 faces the bottom of the oil storage pool 12, i.e. each of the plurality of ribs 123 extends from one end of the oil storage pool 12 to the other end along the gravity direction. The ribs 123 are arranged on the wall of the oil storage pool 12, on one hand, the ribs 123 can be used for guiding the frozen oil discharged from the oil outlet 132 to the oil storage pool 12, and further reducing the scouring of the oil discharged from the oil outlet 132 to the frozen oil in the oil storage pool 12, on the other hand, the ribs 123 can also be used for further absorbing the heat of the frozen oil, and further reducing the temperature of the frozen oil entering the oil storage pool 12, so that the precipitation amount of the refrigerant is increased.

Further, in the present embodiment, as shown in fig. 2 and 3, an end of the rib 123 facing away from the oil outlet 132 extends to the bottom of the oil storage tank 12, that is, when the frozen oil is stored in the oil storage tank 12, an end of the rib 123 facing away from the oil outlet 132 extends to a position below the liquid level of the frozen oil, so that the frozen oil sprayed from the oil outlet 132 is directly guided to join with the frozen oil in the oil storage tank 12, and the flushing of the frozen oil in the oil storage tank 12 by the frozen oil is reduced to the maximum extent.

Furthermore, in the present embodiment, the plurality of ribs 123 may be, but not limited to, integrally formed on the wall of the oil storage pool 12, so that the processing process is simple and the forming and manufacturing are convenient.

In another embodiment of the present invention, as shown in fig. 2 and 3, the oil outlet 132 is arranged at the bottom of the oil storage tank 12, that is, when the freezing oil is stored in the oil storage tank 12, the oil outlet 132 is arranged at the bottom of the freezing oil liquid level, so the setting of the oil outlet channel 13 can change the outflow direction of the freezing oil, the freezing oil discharged from the oil outlet 132 is not directly opposite to the freezing oil liquid level, so that the freezing oil liquid level can not be directly washed away, thereby further reducing the impact of the freezing oil discharged from the oil outlet 132 on the existing freezing oil in the oil storage tank 12, and better providing a guarantee for maintaining the stability of the existing freezing oil in the oil storage tank 12.

Further, in the present embodiment, the oil outlet 132 is located below the air outlet 122 along the gravity direction, so that the frozen oil discharged from the oil outlet 132 is prevented from entering the air outlet 122 and being discharged along the refrigerant through the air outlet 122 while flowing along the wall of the oil storage tank 12. Preferably, in this embodiment, a valve structure for stopping the outflow of the refrigerant oil may be further disposed in the air vent 122, so as to prevent the refrigerant oil from being sprayed to be discharged through the air vent 122 due to an excessive outflow speed.

Of course, in other embodiments, the venting hole 122 may be disposed below the oil outlet 132, and in this case, a valve for stopping the outflow of the refrigerant oil needs to be disposed in the venting hole 122 to prevent the refrigerant oil from flowing out through the venting hole 122.

Optionally, in another embodiment of the present invention, the oil outlet 132 may not be disposed away from the bottom of the oil storage pool 12, that is, the oil outlet 132 is disposed toward the bottom of the oil storage pool 12, at this time, a buffer portion (not shown) may be disposed between the oil storage area of the oil storage pool 12 and the oil outlet 132, that is, between the refrigerant oil level and the oil outlet 132, and it is ensured that a gap is formed between the buffer portion and the pool wall of the oil storage pool 12 for the refrigerant oil to flow through. Thus, the frozen oil discharged from the oil outlet 132 hits the buffer portion and then falls into the oil reservoir 12, and the shock of the frozen oil can be further buffered by the buffer portion, so that even if the oil outlet 132 faces the frozen oil liquid surface, the influence of the shock on the existing frozen oil in the oil reservoir 12 is relatively small.

Further, in the present embodiment, the buffer portion is a buffer baffle protruding from the wall of the oil storage tank 12, and the side wall of the buffer baffle and the side wall of the oil storage tank 12 are spaced apart from each other to form a gap for the refrigerant oil to flow through. Or the buffer part is a pore plate which is convexly arranged on the wall of the oil storage pool 12, a plurality of through holes are arranged on the pore plate, and the refrigerant oil flows out through the through holes on the pore plate.

In another embodiment of the present invention, as shown in fig. 2 and 3, the oil outlet channel 13 is configured as an oil outlet pipe, the oil outlet pipe includes an introducing section 133 and a discharging section 134 connected to the introducing section 133, the port of the introducing section 133 far away from the discharging section 134 forms the oil inlet 131, and the port of the discharging section 1344124 far away from the introducing section 133 forms the oil outlet 132. Therefore, the oil outlet channel 13 adopts a pipeline type channel, and a proper pipeline is selected to be arranged in the shell 10 of the scroll compressor, so that the oil outlet channel 13 can be formed, and the oil outlet channel 13 has a relatively simple structure and is convenient to manufacture and form.

Further, in the present embodiment, the discharge section 134 is connected to the introduction section 133 at an angle, and forms a bent section of the oil outlet passage 13 at a position of the connection angle, and particularly, in the present embodiment, the connection angle between the introduction section 133 and the discharge section 134 may be an acute angle, a right angle, or an obtuse angle.

Further, in the present embodiment, the discharge section 134 penetrates through the wall of the oil storage pool 12, so that the oil outlet 132 extends into the oil storage pool 12, i.e. the discharge section 134 is inserted into the wall of the oil storage pool 12, so as to ensure that the discharge port 132 extends into the oil storage pool 12. Or, the introducing section 133 penetrates through the wall of the oil storage pool 12, that is, the introducing section 133 is inserted into the wall of the oil storage pool 12, the portion of the introducing section 133 connected with the discharging section 134 extends into the oil storage pool 12, and the discharging section 134 is located in the oil storage pool 12 as a whole, so that the upper non-oil storage space of the oil storage pool 12 can be reasonably utilized, and the space occupied by the oil outlet channel 13 can be reduced as much as possible.

As shown in fig. 4 to 7, in another embodiment of the present invention, as an alternative to the above embodiment, a first communicating groove 151 and a second communicating groove 152 are provided on a side wall of the stationary scroll 15 of the scroll compressor of the present embodiment, which faces the casing 101 of the oil content device 100, as shown in fig. 7, the first communicating groove 151 is close to the oil inlet 131, the second communicating groove 152 is close to the refrigerant outlet 14, the oil drain hole 1017 is connected to the oil inlet 131 through the first communicating groove 151, and the exhaust hole 122 is connected to the refrigerant outlet 14 through the second communicating groove 152. By forming the first communicating groove 151 and the second communicating groove 152 on the fixed scroll 15, the refrigerant oil discharged from the oil discharge hole 1017 flows into the oil inlet 131 of the oil discharge passage 131 through the first communicating groove 151, and the refrigerant discharged from the air discharge hole 122 of the oil storage tank 12 is connected to and discharged from the refrigerant outlet 14 through the second communicating groove 152, so that it is not necessary to provide an additional pipeline or a pipe in the casing 10 of the scroll compressor or the housing 101 of the oil content device 100 to guide the refrigerant oil or the refrigerant to flow, the existing structure of the scroll compressor is reasonably utilized, and the overall structure of the scroll compressor of the present embodiment is simplified.

In the present embodiment, as shown in fig. 5 and 6, the scroll compressor further includes a sealing member 16, the sealing member 16 abuts against an end surface of the fixed scroll 15 facing the housing 101 of the oil separating device 100 (i.e., a side wall surface of the fixed scroll 15 facing away from the orbiting scroll 18), and the shape of the sealing member 16 is substantially the same as that of the end surface of the fixed scroll 15, and the size of the sealing member 16 is substantially the same as that of the side wall surface of the fixed scroll 15, thereby ensuring a more beautiful appearance of the overall scroll compressor. Further, a groove 17 is arranged on an end surface of the fixed scroll 15 facing away from the orbiting scroll 18, openings are arranged at two ends of the groove 17, the groove 17 and the sealing member 16 are enclosed to form the oil outlet channel 13, an opening at one end of the groove 17 forms an oil outlet 132 of the oil outlet channel 13, and an opening at the other end of the groove 17 forms an oil inlet 131 of the oil outlet channel 13. Therefore, the sealing piece 16 is arranged to be attached to the end face of the fixed scroll 15, the sealing piece 16 is in sealing attachment connection with the end face of the fixed scroll 15, the end face of the groove wall of the groove 17 is abutted against the sealing piece 16, the oil outlet channel 13 can be formed in the casing 30, and the oil outlet channel 13 is simple in arrangement form.

Alternatively, the above-mentioned groove 17 may also be disposed on the sealing member 16, that is, the end surface of the sealing member 16 facing away from the casing 101 is provided with a groove 17 with two open ends, the groove 17 and the end surface of the fixed scroll 15 are surrounded to form the above-mentioned oil outlet channel 13, and the two open ends of the groove 17 respectively form the oil inlet 131 and the oil outlet 132 of the oil outlet channel 13. In this way, the sealing member 16 is arranged to abut against and be connected to the end surface of the fixed scroll 15, the sealing member 16 is in sealing and abutting connection with the end surface of the fixed scroll 15, the end surface of the groove wall of the groove 17 abuts against the sealing member 16, and the oil outlet channel 13 can be formed in the casing 30.

In the present embodiment, the seal 16 may be, but is not limited to, a gasket or the like that is sealingly attached to the side wall surface of the fixed scroll 15.

In the above two embodiments, the arrangement of the sealing member 16 does not affect the normal discharge of the refrigerant oil and the refrigerant.

In another embodiment of the present invention, as another alternative to the above embodiment, as shown in fig. 4, the casing 101 of the oil separating device 100 has a connecting surface 1011, and the connecting surface 1011 and the fixed scroll 15 deviate from the end surface of the movable scroll 18 for adaptive connection, wherein the connecting surface 1011 and the end surface of the fixed scroll 15 for adaptive connection mean that the shape of the connecting surface 1011 is the same as or similar to the shape of the end surface of the fixed scroll 15, and the size of the connecting surface 1011 is substantially the same as the size of the end surface of the fixed scroll 15. Further, a groove with two open ends is arranged on the connecting surface 1011, specifically, the connecting surface 1011 is recessed away from the fixed scroll 15 to form the groove 17, the end surface of the fixed scroll 15 abuts against the connecting surface 1011 and surrounds the groove 17 to form the oil outlet channel 13, one end opening of the groove 17 forms the oil outlet 132 of the oil outlet channel 13, and the other end opening of the groove 17 forms the oil inlet 131 of the oil outlet channel 13. The oil outlet channel 13 can be formed by arranging the groove 17 on the connecting surface 1011 of the shell 101, and when the connecting surface 1011 of the shell 101 is attached to the end surface of the fixed scroll 15, the end surface of the groove wall of the groove 17 is tightly abutted to the end surface of the fixed scroll 15, and the arrangement form of the oil outlet channel 13 is also simpler.

In this embodiment, as shown in fig. 4, a containing groove 1012 for containing the groove 17 is further disposed in the casing 101, an inner wall surface of the containing groove 1012 and an outer wall surface of the groove 17 surround to form the oil storage tank 12, and the oil return hole 121 and the exhaust hole 122 are both opened on the casing 101. In this way, the oil content insertion tube 11, the oil storage tank 12, the oil outlet channel 13 and the like are arranged in the same shell 101, the shell 101 and the shell 10 of the scroll compressor are independently formed, the shell 101 is more convenient to assemble and disassemble, and the oil content insertion tube 11, the oil storage tank 12, the oil outlet channel 13 and the like are more convenient to overhaul and maintain.

In this embodiment, as shown in fig. 4, a connecting channel 1013 is further disposed in the housing 101, the connecting channel 1013 is used for flowing the precipitated refrigerant, an inlet of the connecting channel 1013 is connected to the oil outlet 132, an outlet of the connecting channel 1013 is connected to the exhaust hole 122, and the refrigerant discharged from the oil outlet 132 of the oil outlet channel 13 flows through the connecting channel 1013 and then is discharged through the exhaust hole 122. The connecting channel 1013 can increase the distance between the air outlet 122 and the oil outlet 132 of the oil outlet channel 13, so as to prevent the frozen oil discharged from the oil outlet 132 from entering the air outlet 122; on the other hand, the channel wall of the connecting channel 1013 is communicated with the tank wall of the oil storage tank 12, and the separated refrigerant is in contact with the channel wall of the connecting channel 1013, so that the connecting channel 1013 can further cool the separated refrigerant, so that the gaseous refrigerant oil mixed in the refrigerant is condensed on the channel wall and flows back to the oil storage tank 12, thereby better preventing the refrigerant oil from being discharged along with the refrigerant.

In this embodiment, as shown in fig. 4, an oil blocking portion 1014 is provided on the channel wall surface of the connecting channel 1013, and the oil blocking portion 1014 is used for blocking the refrigerant oil flowing out from the oil outlet 132 from flowing into the air outlet 122 through the connecting channel 1013. In the present embodiment, oil blocking portion 1014 is disposed near oil outlet 132, and a gap is formed between oil blocking portion 1014 and the end surface of oil outlet 132, ensuring smooth discharge of the freezing oil flowing out from oil outlet 132. Thus, the oil blocking portion 1014 can effectively block the refrigerant oil from entering the connecting channel 1013, and the refrigerant oil and the precipitated refrigerant can be normally discharged through the gap between the oil blocking portion 1014 and the end surface of the oil outlet 132, so that the refrigerant oil can be effectively blocked from entering the air vent 122 by the oil blocking portion 1014, and the normal discharge of the refrigerant oil and the refrigerant is not hindered.

Further, in the present embodiment, an oil blocking surface 1015 is formed on a surface of oil blocking portion 1014 facing oil outlet 132, and oil blocking surface 1015 is spaced from an end surface of oil outlet 132, that is, a gap is ensured between oil blocking portion 1014 and the end surface of oil outlet 132. Specifically, oil outlet 132 may be partially or completely blocked by oil blocking surface 1015, so as to ensure that the frozen oil discharged from oil outlet 132 hits oil blocking surface 1015 and falls back into oil reservoir 12.

Further, in the present embodiment, the oil blocking portion 1014 is a rib-like structure integrally formed on the channel wall of the connecting channel 1013.

In another embodiment of the present invention, as shown in fig. 2, fig. 3 and fig. 4, a rectification chamber 1018 is further disposed in the casing 101, and the rectification chamber 1018 is disposed near the oil separation chamber 1016, and the rectification chamber 1018 is used for performing noise elimination and pressure reduction and speed reduction on the mixed fluid of the refrigerant and the refrigeration oil before the mixed fluid enters the oil separation chamber 106. In this embodiment, the casing 101 is further provided with a mixed fluid inlet 1020, the mixed fluid inlet 1020 is communicated with the rectifying chamber 1018, the mixed fluid inlet 1020 is communicated with the mixed fluid outlet 153 of the fixed scroll 15 and the rectifying chamber 1018, so that the mixed fluid discharged from the compression chamber 30 is introduced into the rectifying chamber 1018, the mixed fluid discharged from the compression chamber 30 of the scroll compressor enters the rectifying chamber 1018 through the mixed fluid inlet 1020, and the mixed fluid discharged from the rectifying chamber 1018 enters the rectifying chamber in the oil chamber 1016 through the oil inlet 1019 to perform oil-gas separation.

In this embodiment, the oil inlet 1019 is provided above the mixed fluid inlet 1020 in the direction of gravity, so that the mixed fluid entering the rectifying chamber 1018 from the oil inlet 1019 is prevented from directly entering the oil chamber 1016 through the oil inlet 1019 without flowing through the rectifying chamber 1018, that is, the mixed fluid is prevented from short-circuiting, thereby ensuring that the rectifying chamber 1018 can reliably and effectively rectify and depressurize the mixed fluid. When in use, the mixed fluid inlet 1020 arranged on the shell 101 is connected with the mixed fluid outlet 153 arranged on the fixed scroll 15, so that the mixed fluid of the refrigerant and the refrigeration oil discharged from the compression cavity 30 of the scroll compressor enters the rectification chamber 1018 through the mixed fluid inlet 1020, the rectification chamber 1018 can rectify the discharged mixed fluid, the flow rate of the mixed fluid is reduced, and the pressure pulsation is weakened, thereby realizing the pressure reduction of the mixed fluid, therefore, when the mixed fluid rectified by the rectification chamber 1018 enters the oil content cavity 1016 to carry out the oil content treatment, because the mixed fluid is subjected to the first-stage pressure reduction, the pressure of the mixed fluid is greatly reduced, when the mixed fluid collides with the cavity wall of the oil content cavity 1016 and the oil content insertion pipe 11, because the pressure of the mixed fluid is greatly reduced, the pressure pulsation of the mixed fluid is weakened, the flow rate is reduced, the impact force of the mixed fluid on the cavity wall and the oil content insertion pipe 11 is reduced, and the impact noise is reduced, the impact loss of the oil pipe 11 is reduced, and the service life is prolonged.

Further, in the present embodiment, as shown in fig. 4, the rectifying chamber 1018 is a chamber having a streamline wall 1021, the streamline wall 1021 is provided right opposite to the mixed fluid inlet 1020, and the mixed fluid flowing in through the mixed fluid inlet 1020 flows in the rectifying chamber 1018 under the guide of the streamline wall 1021, so that the mixed fluid flows along the streamline wall 1021, the fluid flow is smoother, the impact of the mixed fluid on the inner wall surface of the rectifying chamber 1018 can be further reduced, and the noise reduction effect of the rectifying chamber 1018 can be further effectively improved.

Further, in the present embodiment, as shown in fig. 5 and 6, when the sealing member 16 is provided in the scroll compressor, the position of the sealing member 16 facing the mixed fluid inlet 1020 is hollowed out, so that a clearance 161 is formed at the position of the sealing member 16 facing the mixed fluid inlet 1020, which avoids the mixed fluid inlet 1020, thereby ensuring that the discharge of the mixed fluid is not blocked by the sealing member 16, and ensuring that the mixed fluid can be discharged into the rectification chamber 1018 through the mixed fluid inlet 1020.

In another embodiment of the present invention, the casing 101 and the sealing member 16 of the oil content device 100 are made of materials with strong impact resistance, so as to ensure that the casing 101 and the sealing member 16 are not deformed by the impact of the mixed fluid, the refrigerant or the refrigerant oil, thereby prolonging the service life of the casing 101 and the sealing member 16.

In another embodiment of the present invention, the refrigerant outlet 14 is set to be gradually flared, that is, the flow area of the refrigerant outlet 14 increases gradually along the refrigerant flowing direction, so that at least a portion of the refrigerant outlet 14 forms a trumpet shape, the flow speed of the refrigerant decreases gradually when flowing in the refrigerant outlet 14, thereby reducing the speed and the pressure of the air flow at the outlet of the refrigerant outlet 14, playing a role of rectification to the refrigerant to a certain extent, further making the refrigerant discharge more stable, and reducing the impact of the refrigerant to the housing 101 along the flowing and discharging process of the refrigerant outlet 14.

In the present embodiment, when the refrigerant outlet 14 is formed as a gradually expanding opening, the flow area S1 of the refrigerant outlet 14 refers to the flow area of the inlet end of the refrigerant outlet 14.

Another embodiment of the present invention further provides a refrigeration device (not shown), which includes the above scroll compressor.

The refrigeration equipment that this embodiment provided, through using foretell scroll compressor, because the oil gallery 121 of scroll compressor's oil storage pool 12 can be by the immersion of refrigeration oil all the time, the refrigerant can not reveal to scroll compressor's oil return passage 20 in through oil gallery 121, and the blowby phenomenon can not appear in the scroll compressor promptly, and the scroll compressor oil return is sufficient, and a compression efficiency draft of scroll compressor, refrigeration equipment's refrigerating capacity promotes.

Another embodiment of the present invention further provides a vehicle, which includes the above-mentioned refrigeration equipment.

The vehicle that this embodiment provided, through using foretell refrigeration plant, at vehicle refrigeration in-process, because refrigeration plant's refrigeration capacity and refrigeration efficiency can maintain higher level all the time to can effectively shorten the inside cooling of vehicle consuming time, the cooling speed of vehicle promotes, and the promotion is experienced with the car.

It should be noted that, in the present embodiment, the specific type of the vehicle is not limited, for example, the vehicle may be a conventional fuel vehicle, and may also be a new energy vehicle, where the new energy vehicle includes, but is not limited to, a pure electric vehicle, an extended range electric vehicle, a hybrid electric vehicle, a fuel cell electric vehicle, a hydrogen engine vehicle, and the like, and the present embodiment is not particularly limited thereto.

The above are merely examples of the present invention and are not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a scroll compressor, is provided with the oil content device, the oil content device includes casing and oil content intubate, be provided with oil storage pool and oil content chamber in the casing, the oil content intubate is located the oil content intracavity just has the inlet end and gives vent to anger the end, oil drain hole has been seted up on the chamber wall in oil content chamber, oil drain hole with the oil storage pool is linked together, the refrigerant export has been seted up on the casing, the end of giving vent to anger of oil content intubate with the refrigerant export is linked together, its characterized in that:

the flow area S1 of the refrigerant outlet, the flow area S2 of the air inlet end of the oil content insertion pipe and the flow area S3 of the oil drain hole satisfy the following relations:

0.05≤S2/S1≤0.5，0.02≤S3/S1≤0.3。

2. the scroll compressor of claim 1, wherein an area of flow through S2 of the oil tube inlet end and an area of flow through S3 of the oil drain hole satisfy the following relationship:

0.08≤S3/S2≤0.8。

3. the scroll compressor of claim 1, wherein an oil outlet passage is further provided in the housing, the oil outlet passage having an oil inlet and an oil outlet, the oil outlet being located above the oil inlet, the oil inlet being in communication with the oil drain hole, and the oil outlet being in communication with the oil reservoir.

4. The scroll compressor of claim 3, wherein an overflow area S4 of the oil outlet and an overflow area S3 of the oil drain hole satisfy the following relationship:

1≤S4/S3≤7。

5. the scroll compressor of claim 3, wherein an open area of the oil outlet passage gradually increases or remains constant in a direction from the oil inlet to the oil outlet.

6. The scroll compressor of claim 3, wherein the oil outlet is disposed opposite a floor of the oil reservoir;

or the oil outlet faces the bottom of the oil storage pool, a buffer part is arranged on the wall of the oil storage pool, and a gap is formed between the buffer part and the wall of the oil storage pool and below the oil outlet.

7. The scroll compressor according to any one of claims 1 to 6, wherein a discharge hole is formed in a wall of the oil reservoir, the discharge hole is communicated with the refrigerant outlet, and an area S5 of the discharge hole and an area S2 of an air inlet end of the oil content insertion tube satisfy the following relationship:

0.015≤S5/S2≤1。

8. the scroll compressor of any one of claims 1 to 6, wherein the refrigerant outlet is a diverging opening.

9. A refrigeration apparatus comprising a scroll compressor as claimed in any one of claims 1 to 8.

10. A vehicle comprising a refrigeration unit as claimed in claim 9.

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