Liquid accumulator, rolling rotor compressor and air conditioner

Abstract

According to the liquid accumulator, the rolling rotor compressor and the air conditioner, shielding faces are matched with fisheye vent holes, when gas passes through the fisheye vent holes, the gas can be exhausted from one sides of the shielding faces of the fisheye vent holes, the two shielding faces in each pair are distributed on the sides, away from each other, of the two fisheye vent holes, and the two fisheye vent holes are communicated with each other. The two fisheye vent holes are formed in the liquid storage device, gas in the two vent holes collides and converges between the two fisheye vent holes after being exhausted, the flow speed of the collided gas is reduced, refrigerating machine oil in refrigerant gas is separated out, the separated refrigerating machine oil drips into the bottom of the liquid storage device, and when the liquid level reaches a certain height, the refrigerating machine oil can flow back to the pump body through the oil return hole; according to the device, the flowing direction of the gas when the gas penetrates through the fisheye vent holes is changed, oil-gas separation is assisted through collision of the gas, the gas flow oil separation effect is improved, the refrigerant gas and refrigerating machine oil are separated more sufficiently, and the oil-gas separation efficiency is improved. And the refrigerating or heating capability of the air conditioner during use is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid accumulators and relates to a liquid accumulator, a rolling rotor compressor and an air conditioner. Background Art

[0002] There is a certain compatibility between the refrigeration oil and the refrigerant in the existing air conditioner. The refrigerant sucked into the pump body contains a certain proportion of refrigeration oil. When there is too much refrigeration oil, it occupies the effective suction volume of the pump body and reduces its volumetric efficiency.

[0003] In the prior art, the design of the liquid accumulator does not take into account the effect of the liquid accumulator structure on the oil separation of the airflow. When the refrigerant gas and the refrigeration oil are not separated sufficiently, the cooling and heating capacity of the air conditioner is reduced. Utility Model Content

[0004] The purpose of the present utility model is to solve the problem in the prior art that the effect of the liquid reservoir structure on the oil separation of the air flow is not taken into consideration during the design of the liquid reservoir, so that the refrigerant gas and the refrigeration oil cannot be fully separated, resulting in low cooling and heating capabilities of the air conditioner, and to provide a liquid reservoir, a rolling rotor compressor and an air conditioner.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A liquid storage device comprises a cylinder, wherein an air inlet and an air outlet are sequentially arranged inside the cylinder from top to bottom;

[0007] A filter assembly is provided between the air inlet and the air outlet, wherein the filter assembly comprises a support frame, and a filter is provided on the upper end of the support frame;

[0008] The end surface of the support frame is circumferentially distributed with fisheye vents, and a shielding surface is provided on one side of the fisheye vents. The shielding surface is used to limit the outlet end of the fisheye vents so that the gas is discharged along one side of the shielding surface when passing through the fisheye vents;

[0009] The fisheye vents are provided in a plurality of pairs, each pair including two fisheye vents, and the two shielding surfaces in each pair are distributed on a side away from the two fisheye vents.

[0010] The further improvement of the present invention is:

[0011] The shielding surface is a curved structure with internal protrusions.

[0012] The shielding surface half-wraps the port of the fisheye vent.

[0013] The angle between the edge line of the shielding surface away from the fisheye vent port and the axial direction of the cylinder is β, and β satisfies -30°≤β≤30°.

[0014] The number of the fisheye vents is 4≤n≤12, where n represents the number of the fisheye vents.

[0015] The ventilation area of ​​the fisheye vent port is S1, the area of ​​the filter is S2, and n*S1 / S2≥0.5 is satisfied between S1 and S2.

[0016] A raised portion is provided at the center of the support frame. The raised portion is raised in a direction close to the filter screen, and an upper end surface of the raised portion is in contact with the filter screen.

[0017] The height h of the protrusion satisfies: 0.05*D≤h≤0.1*D, where D represents the diameter of the support frame;

[0018] The diameter of the protrusion is d, and the diameter d satisfies 0.2≤d / D≤0.3.

[0019] A rolling rotor compressor comprises the liquid accumulator described in any one of the utility models.

[0020] An air conditioner comprises the compressor described in the utility model.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The utility model discloses a liquid storage container, wherein a filter assembly is arranged inside a cylinder, the filter assembly comprises a supporting frame, a plurality of fisheye vents are provided on the supporting frame, a shielding surface is arranged on one side of the fisheye vents, and the shielding surface is used to limit the outlet end of the fisheye vents. With the cooperation of the shielding surface, when gas passes through the fisheye vents, the gas will be discharged from one side of the shielding surface of the fisheye vents. The two shielding surfaces in each pair are distributed on the side away from the two fisheye vents, so that the gas in the two vents will collide and merge between the two fisheye vents after being discharged. The gas flow rate after the collision is reduced, so that the refrigeration oil in the refrigerant gas is separated. The separated refrigeration oil drips into the bottom of the liquid reservoir. When the liquid level reaches a certain height, it can flow back to the pump body through the oil return hole. The refrigerant gas is sucked into the suction air in the middle of the liquid reservoir due to the negative pressure continuously generated by the rotation of the pump body. This device changes the direction of gas flow when passing through the fisheye vents, assists in oil and gas separation through its own collision, improves the oil separation effect of the air flow, makes the refrigerant gas and refrigeration oil separate more completely, and improves the cooling or heating capacity of the air conditioner during use.

[0023] Furthermore, in the utility model, the shielding surface is half-wrapped in the port of the fisheye vent. When the gas flows in the axial direction, the half-wrapped shielding surface can block and limit the gas in the vertical direction, so that the gas flows out along the side of the shielding surface after reaching the top, ensuring that the gas can flow out along a predetermined trajectory and achieve collision and separation with another gas.

[0024] Furthermore, in the present invention, the raised portion is raised in a direction close to the filter screen, and the raised portion supports the filter screen, so that the filter screen forms a curved surface structure, thereby increasing the contact area with the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is the overall structural diagram of the utility model;

[0027] Figure 2 This is a top view of the filter assembly of the present invention;

[0028] Figure 3 This is a side view of the filter assembly of the present invention;

[0029] Figure 4 This is a top view of the support frame of the utility model;

[0030] Figure 5 This is a side view of the support frame of the utility model;

[0031] Figure 6 This is a three-dimensional diagram of the support frame of the utility model;

[0032] Figure 7 This is a top view of the shielding surface of the utility model with β being 30°;

[0033] Figure 8 This is a side view of the shielding surface of the utility model with β being 30°.

[0034] Among them: 1-filter assembly; 2-air inlet; 3-air outlet; 4-cylinder;

[0035] 11- filter; 12- support frame;

[0036] 122-Fisheye vent; 1221-Obstruction surface. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0040] In the description of the embodiments of the present invention, it should be noted that if the terms "upper," "lower," "horizontal," "inner," etc. appear to indicate an orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the product of the present invention is typically placed when in use. These terms are used solely to facilitate the description of the present invention and to simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0041] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0042] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0043] The present invention is described in further detail below with reference to the accompanying drawings:

[0044] See also Figures 1 to 7 This embodiment discloses a liquid reservoir to solve the problem of insufficient oil separation effect of the liquid reservoir, specifically including:

[0045] See also Figures 1 to 3, an embodiment of the utility model discloses a liquid reservoir, including a cylinder 4, wherein an air inlet 2 and an air outlet 3 are sequentially arranged inside the cylinder 4 from top to bottom; a filter assembly 1 is arranged between the air inlet 2 and the air outlet 3, and the filter assembly 1 includes a support frame 12, and a filter 11 is arranged on the upper end of the support frame 12; fisheye air vents 122 are circumferentially distributed on the end surface of the support frame 12, and a blocking surface 1221 is arranged on one side of the fisheye air vents 122, and the blocking surface 1221 is used to limit the outlet end of the fisheye air vents 122 so that the gas is discharged along one side of the blocking surface 1221; the fisheye air vents 122 are provided in a plurality of pairs, each pair includes two fisheye air vents 122, and the two blocking surfaces 1221 in each pair are distributed on the side away from the two fisheye air vents 122.

[0046] Furthermore, in this embodiment, the filter assembly 1 is interference fit with the inner wall of the cylinder 4 .

[0047] Furthermore, in this embodiment, the filter 11 is disposed on a side of the support frame 12 close to the air inlet 2 and covers the entire plane of the support frame 12 .

[0048] Furthermore, in this embodiment, the shielding surface 1221 is a semi-wrapped structure, and the shielding surface 1221 is semi-wrapped around the port of the fisheye vent 122, forming a partial blockage at the port of the fisheye vent 122. After passing through the fisheye vent 122, the gas is blocked by the inner wall of the shielding surface 1221 and can only flow out along the side of the shielding surface 1221. Moreover, since the two shielding surfaces 1221 in each pair are distributed on the side away from the two fisheye vents 122, the gas passing through the two fisheye vents 122 flows toward between the two fisheye vents 122 until they converge and collide in the middle.

[0049] See also Figure 6 As the gas flows, the circumferentially discharged gas is directed through the fisheye vents 122, then blocked by the inner wall of the shielding surface 1221 and forced to flow to one side. At this time, the gas in the two adjacent vents 122 meets in the middle, and the flow rate decreases after the collision, causing the refrigeration oil in the refrigerant gas to separate. The separated refrigeration oil drips into the bottom of the liquid reservoir. When the liquid level reaches a certain height, it can flow back to the pump body through the oil return hole. The refrigerant gas is sucked into the suction port 3 located in the middle of the liquid reservoir due to the negative pressure generated by the continuous rotation of the pump body. This structure enhances the oil-gas separation effect.

[0050] Furthermore, in this embodiment, the fisheye vent 122 is a curved structure with a convex interior, and may also be an elliptical or polygonal structure, as long as a semi-enclosed structure of the fisheye vent 122 can be achieved.

[0051] Furthermore, in this embodiment, the number n of the fisheye vents 122 is an even number, satisfying 4≤n≤12.

[0052] Furthermore, in this embodiment, the ventilation surface of the fisheye vent 122 is S1, the area of ​​the filter screen 11 is S2, and the relationship between S1 and S2 satisfies n*S1 / S2 ≥ 0.5. The ventilation surface S1 of the fisheye vent 122 specifically refers to the area between the edge of the blocking surface 1221 and the edge of the fisheye vent 122 where the blocking surface 1221 is not provided, after the blocking surface 1221 is blocked.

[0053] Furthermore, in this embodiment, the angle between the edge line of the shielding surface 1221 away from the port of the fisheye vent 122 and the axial direction of the cylinder 4 is β, -30°≤β≤30°, see Figures 7 and 8 , the angle starts from O-O', counterclockwise is positive, clockwise is negative, see Figure 4 In the figure, the β angle is 0 degrees, see Figures 7 and 8 The median beta angle is 30 degrees.

[0054] See also Figures 4 and 5 Furthermore, in this embodiment, a protrusion 121 is provided at the center of the support frame 12, and the connecting end of the protrusion 121 and the support frame 12 is circular, and the diameter of the circle is d, and the diameter d satisfies 0.2≤d / D≤0.3.

[0055] Furthermore, in this embodiment, the raised portion 121 raises in a direction close to the filter 11, and the upper end of the raised portion 121 contacts the filter 11. The raised portion supports the filter, so that the filter forms an arc surface structure, increases the contact area with the degassing gas, and improves the gas filtering effect.

[0056] Furthermore, in this embodiment, the upward protrusion height h of the protrusion 121 satisfies 0.05*D≤h≤0.1*D, where D represents the diameter of the support frame 12 .

[0057] This embodiment also discloses a rolling rotor compressor, including the liquid reservoir disclosed in this embodiment.

[0058] This embodiment also discloses an air conditioner, including the rolling rotor compressor disclosed in this embodiment.

[0059] The working principle of the embodiment of the utility model:

[0060] There is a certain degree of compatibility between the refrigeration oil and the refrigerant in the existing air conditioner. The refrigerant sucked into the liquid reservoir contains a certain proportion of refrigeration oil. The mixed gas of the two enters the liquid reservoir from the air inlet 2.

[0061] The filtered mixed gas is further filtered through the filter 11 to filter out the fine impurities that may be brought into the system pipeline. The filtered mixed gas passes through the fisheye vent 122, and then under the guidance of the shielding surface 1221, the gas flows along one side of the shielding surface 1221 and meets the other gas in the air. After meeting, the flow rate begins to decrease;

[0062] This separates the refrigeration oil from the refrigerant gas. The separated refrigeration oil drips into the bottom of the reservoir. When the liquid level reaches a certain height, it can flow back into the pump body through the oil return hole. The refrigerant gas is sucked into the suction port 3 located in the middle of the reservoir due to the negative pressure generated by the continuous rotation of the pump body. This structure enhances the oil-gas separation effect.

[0063] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A liquid storage device, characterized in that: It comprises a cylinder (4), wherein an air inlet (2) and an air outlet (3) are arranged in sequence from top to bottom inside the cylinder (4); A filter assembly (1) is arranged between the air inlet (2) and the air outlet (3), the filter assembly (1) comprising a support frame (12), and a filter (11) is arranged at the upper end of the support frame (12); The end surface of the support frame (12) is circumferentially distributed with fisheye vents (122), and a shielding surface (1221) is provided on one side of the fisheye vents (122), and the shielding surface (1221) is used to limit the outlet end of the fisheye vents (122), so that the gas is discharged along one side of the shielding surface (1221) when passing through the fisheye vents (122); A plurality of pairs of fisheye vents (122) are provided, each pair comprising two fisheye vents (122), and the two shielding surfaces (1221) in each pair are distributed on a side away from the two fisheye vents (122).

2. A liquid storage device according to claim 1, characterized in that: The shielding surface (1221) is a curved surface structure with internal protrusions.

3. A liquid storage device according to claim 1, characterized in that: The shielding surface (1221) half-wraps the end of the fisheye vent (122).

4. A liquid storage device according to claim 3, characterized in that: The angle between the edge line of the shielding surface (1221) away from the port of the fisheye vent (122) and the axial direction of the cylinder (4) is β, and β satisfies -30°≤β≤30°.

5. A liquid storage device according to claim 1, characterized in that: The number of the fisheye vent holes (122) is 4≤n≤12, where n represents the number of the fisheye vent holes (122).

6. A liquid storage device according to claim 1, characterized in that: The ventilation area of ​​the port of the fisheye vent (122) is S1, the area of ​​the filter (11) is S2, and n*S1 / S2≥0.5 is satisfied between S1 and S2.

7. A liquid storage device according to claim 1, characterized in that: A protrusion (121) is provided at the center of the support frame (12), the protrusion (121) protrudes in a direction close to the filter screen (11), and the upper end surface of the protrusion (121) is in contact with the filter screen (11).

8. A liquid storage device according to claim 7, characterized in that: The protruding height h of the protruding portion (121) satisfies: 0.05*D≤h≤0.1*D, wherein D represents the diameter of the supporting frame (12); The diameter of the protrusion (121) is d, and the diameter d satisfies 0.2≤d / D≤0.

3.

9. A rolling rotor compressor, characterized in that: A liquid reservoir comprising any one of claims 1-8.

10. An air conditioner, characterized in that: Comprising the compressor as claimed in claim 9.

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