Oil discharge pipe with function of reducing oil surface disturbance and compressor

Abstract

The utility model provides an oil drain pipe with the function of reducing oil surface disturbance and a compressor, the oil drain pipe comprises an oil drain pipe main body and a spiral oil drain part, the oil drain pipe main body is arranged in a shell, and a first end of the oil drain pipe main body is connected with a rack; the spiral oil discharge part is located in the oil pool and comprises a spiral pipe and an oil discharge outlet, the oil discharge outlet is communicated with the second end of the oil discharge pipe body through the spiral pipe, and an included angle is formed between the plane where the oil discharge outlet is located and the oil liquid level of the oil pool. According to the oil drain pipe with the oil surface disturbance reducing function, oil entering an oil pool can enter the oil drain pipe in the tangential direction, then the situation that the oil directly enters the oil pool in the vertical direction, and consequently the oil pool is turned over and bubbles are generated is avoided, it is guaranteed that the real oil surface of a compressor can be truly and accurately evaluated, and working efficiency and accuracy are guaranteed; and the oil liquid does not contain bubbles, so that when the oil liquid sucked into the oil pump enters a lubricating system, the lubricating effect can be guaranteed, and normal and stable work of the compressor is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the compressor device technical field, especially to an oil discharge pipe with oil surface disturbance reduction function and a compressor. BACKGROUND

[0002] In a high-pressure cavity scroll compressor, including a gear oil pump, a crankshaft, a lower support, a frame, a moving scroll, an oil discharge pipe, a lower frame and a pipe pressing plate, the gear oil pump is connected with the crankshaft through a shaft coupling, and the crankshaft rotates to drive the oil pump to rotate, so that the oil is sucked from the bottom of the compressor, transported to the moving scroll bearing through the central oil hole of the crankshaft, the frame bearing, and finally returned to the oil pool at the bottom of the compressor through the oil discharge pipe. The oil discharge pipe undertakes the task of guiding the oil from the moving scroll bearing and the frame bearing back to the oil pool.

[0003] The existing oil discharge pipe is perpendicular to the oil surface. When the compressor is running at high speed, the oil passing through the oil discharge pipe is sprayed into the oil pool above the oil surface, causing the oil pool to churn and bubble. The churning oil pool makes it difficult to assess the real oil surface of the compressor, and the oil containing bubbles sucked into the oil pump and then into the lubrication system will cause the lubrication effect to decrease.

[0004] Therefore, it is necessary to design an oil discharge pipe with oil surface disturbance reduction function to solve the above problems. CONTENT OF THE INVENTION

[0005] Therefore, in order to overcome the defects of the prior art, the present application provides an oil discharge pipe with oil surface disturbance reduction function and a compressor, which effectively solves the problem that the existing oil discharge pipe is perpendicular to the oil surface, causing the oil pool to churn and bubble, and further causing difficulty in assessing the real oil surface of the compressor and the decrease of the lubrication effect.

[0006] According to the first aspect of the present application, an oil discharge pipe with oil surface disturbance reduction function is provided for a compressor, the compressor comprising a shell, a frame and an oil pool, wherein the oil discharge pipe with oil surface disturbance reduction function comprises an oil discharge pipe body and a spiral oil discharge part, the oil discharge pipe body is arranged inside the shell, and a first end of the oil discharge pipe body is connected with the frame; the spiral oil discharge part is located inside the oil pool, and comprises a spiral pipe and an oil discharge port, the oil discharge port is in communication with a second end of the oil discharge pipe body through the spiral pipe, and an included angle is formed between a plane where the oil discharge port is located and an oil surface of the oil pool.

[0007] Preferably, the oil discharge pipe body and the spiral oil discharge part are detachably connected.

[0008] Preferably, the spiral pipe comprises a plurality of bending buffers, the plurality of bending buffers comprising a first bending buffer and a second bending buffer, the second end of the oil discharge pipe body, the first bending buffer, the second bending buffer and the oil discharge port being sequentially arranged along the flow direction of the oil.

[0009] Preferably, in a horizontal projection, the first bending buffer is closer to an extension line where the axis of the oil discharge pipe body is located relative to the second bending buffer.

[0010] Preferably, the spiral pipe further comprises a third bending buffer, the oil discharge port being connected with the second bending buffer through the third bending buffer; in a horizontal projection, the second bending buffer is closer to an extension line where the axis of the oil discharge pipe body is located relative to the third bending buffer.

[0011] Preferably, the oil discharge pipe body comprises a vertical pipe body and a horizontal pipe body connected with each other, the horizontal pipe body being connected with the rack, the vertical pipe body being connected with the spiral oil discharge part, the vertical pipe body being perpendicular to the oil pool.

[0012] According to the second aspect of the present application, a compressor is provided, wherein the compressor comprises the oil discharge pipe with the function of reducing oil surface disturbance as described above.

[0013] Preferably, the oil pool is arranged at the bottom of the shell, the compressor further comprises a support arranged at the top of the oil pool; the oil pool has a full oil state and a low oil state, in the case that the oil pool is in the full oil state, the oil surface of the oil pool is close to the support, in the case that the oil pool is in the low oil state, the oil discharge port is located at the upper part of the oil surface of the oil pool.

[0014] Preferably, in the case that the oil pool is in the full oil state, the second end of the oil discharge pipe body is located inside the oil pool.

[0015] Preferably, in a horizontal projection, the oil pool comprises an arc-shaped bottom wall and vertical side walls arranged at both ends of the arc-shaped bottom wall, in the case that the oil pool is in the low oil state, the oil flows to the connection between the arc-shaped bottom wall and the vertical side walls via the oil discharge port.

[0016] The oil discharge pipe with the function of reducing oil surface disturbance can make the oil liquid entering the oil pool from the tangential direction, thereby avoiding the oil liquid directly entering the oil pool along the vertical direction to cause the oil pool to produce turbulence and bubbles, and thereby ensuring that the real oil surface of the compressor can be truly and accurately evaluated, work efficiency and accuracy are ensured, and because the oil liquid does not contain bubbles, when the oil liquid sucked into the oil pump enters the lubricating system, the lubricating effect of the lubricating system can be ensured, and the normal and stable work of the compressor is ensured.

[0017] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are specifically described below, and the accompanying drawings are described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 A first structural schematic view of a compressor according to an embodiment of the present application is shown;

[0020] Figure 2 A second structural schematic view of a compressor according to an embodiment of the present application is shown;

[0021] Figure 3 A first structural schematic view of an oil discharge pipe and an oil pool according to an embodiment of the present application is shown;

[0022] Figure 4 A second structural schematic view of an oil discharge pipe and an oil pool according to an embodiment of the present application is shown;

[0023] Figure 5 A third structural schematic view of an oil discharge pipe and an oil pool according to an embodiment of the present application is shown.

[0024] The drawings show that: 1 is an oil discharge pipe body; 101 is a vertical pipe body; 102 is a horizontal pipe body; 2 is a spiral oil discharge part; 201 is a spiral pipe; 202 is an oil discharge port; 203 is a first bending buffer part; 204 is a second bending buffer part; 205 is a third bending buffer part; 301 is an outer shell; 302 is a rack; 303 is an oil pool; 304 is a support; 305 is an arc-shaped bottom wall; 306 is a vertical side wall; L1 is a first plane; L2 is a second plane. DETAILED DESCRIPTION

[0025] To make the objects, technical solutions, and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application and are not all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0026] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or component must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0027] In addition, the terms "horizontal", "vertical", and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0028] In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "communication", and "connection" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be mechanically connected, or electrically connected, can be directly connected, or indirectly connected through an intermediate medium, or can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0029] According to the first aspect of the present application, a drain pipe with a function of reducing oil surface disturbance is provided, such as Figures 1 to 5As shown, the oil discharge pipe with the function of reducing oil surface disturbance is used for a scroll compressor, which can include a housing 301, a rack 302, and an oil pool 303. Oil in the oil pool 303 is driven by an oil pump to pass through the rack 302 and enter the oil discharge pipe with the function of reducing oil surface disturbance, and finally flows back to the oil pool 303. By using the oil discharge pipe with the function of reducing oil surface disturbance, the churning and bubbles of the oil pool 303 caused by oil return can be effectively reduced. The oil discharge pipe with the function of reducing oil surface disturbance includes an oil discharge pipe body 1 and a spiral oil discharge part 2.

[0030] In the following description, reference will be made to Figures 1 to 5 The detailed structure of the oil discharge pipe body 1 and the spiral oil discharge part 2 of the oil discharge pipe with the function of reducing oil surface disturbance will be described in detail.

[0031] As Figures 1 to 5 shown, in the embodiment, the oil discharge pipe body 1 is arranged inside the housing 301, the first end of the oil discharge pipe body 1 is connected with the rack 302, and the second end of the oil discharge pipe body 1 is arranged in the oil pool 303. The connection and arrangement of the oil discharge pipe body 1 in the housing 301 can be the commonly used connection mode in the prior art, which is not limited here, for example, the oil discharge pipe body 1 can be arranged inside the housing 301 by clamping, the first end of the oil discharge pipe body 1 is in communication with the rack 302, so that the oil can enter the inside of the oil discharge pipe body 1 from the rack 302, and the second end of the oil discharge pipe body 1 can be directly placed in the oil pool 303 without additional fixation. The spiral oil discharge part 2 can include a spiral pipe 201 and an oil discharge port 202. The spiral pipe 201 can be formed as a spiral pipe structure, which can be in communication with the oil discharge pipe body 1 for the passage of oil. The oil discharge port 202 can be a port of the spiral pipe structure, which is used for discharging oil. The oil discharge port 202 can be in communication with the second end of the oil discharge pipe body 1 through the spiral pipe 201 to realize the flow circulation of oil. The plane where the oil discharge port 202 is located (i.e. the first plane L1 in Figure 5 ) is parallel to the oil surface of the oil pool 303 (i.e. the second plane L2 in Figure 5An included angle is formed between the first plane L1 and the second plane L2. In the prior art, the oil discharge pipe body 1 is perpendicular to the oil surface of the oil pool 303, so that in the process of discharging the oil, the oil enters the oil pool 303 in a direction perpendicular to the oil surface of the oil pool 303. The oil is affected by gravity and mechanical force, and has a certain impact force when entering the oil pool 303. At this time, the oil enters in a direction perpendicular to the oil surface, which can cause the oil surface of the oil pool 303 to be turbulent and bubbly, and thus it is difficult to assess the real oil surface of the compressor. Moreover, the oil containing bubbles is sucked into the oil pump and then enters the lubrication system, which can cause the lubrication effect to decrease. Therefore, the oil enters the oil surface (the second plane L2) of the oil pool 303 in an included angle with the oil surface (the second plane L2) of the oil pool 303, which can reduce the impact force and effectively avoid the oil surface (the second plane L2) of the oil pool 303 from being turbulent and bubbly.

[0032] In addition, the included angle between the first plane L1 and the second plane L2 can be an acute angle, a right angle, an obtuse angle, or the like. It can also be understood that the first plane L1 cannot be parallel to the second plane L2. The specific angle can be selected according to the internal layout of the actual compressor and the size specification of the oil pool 303, and it is only necessary to ensure that the oil enters in a tangential direction of the second plane L2.

[0033] The oil discharge pipe with the oil surface disturbance reduction function can make the oil entering the oil pool 303 from the tangential direction, thereby avoiding the oil entering the oil pool 303 in a vertical direction, which can cause the oil pool 303 to be turbulent and bubbly, and thus it can ensure that the real oil surface of the compressor can be truly and accurately assessed, and the working efficiency and accuracy can be ensured. Moreover, the oil does not contain bubbles, so that when the oil is sucked into the oil pump and then enters the lubrication system, the lubrication effect of the lubrication system can be ensured, and the compressor can work normally and stably.

[0034] Preferably, in the embodiment, in order to ensure the convenience of connection and the feasibility of assembly, the oil discharge pipe body 1 and the spiral oil discharge part 2 are in a detachable connection structure. For example, the pipe diameter size of the end portion of the spiral oil discharge part 2 connected to the oil discharge pipe body 1 is larger, and the pipe diameter size of the end portion of the oil discharge pipe body 1 connected to the spiral oil discharge part 2 is smaller. The two are connected by interference fit.

[0035] Preferably, in the embodiment, the oil discharge pipe body 1 and the spiral oil discharge part 2 can also be in an integrated structure. The oil discharge pipe with the oil surface disturbance reduction function in an integrated structure is convenient for transportation and assembly.

[0036] The user can select the oil discharge pipe with the oil surface disturbance reduction function in a suitable connection mode according to needs.

[0037] Preferably, as Figure 4As shown, in this embodiment, the spiral tube 201 may include multiple bend buffer sections, which can effectively buffer the oil to further reduce the impact force of the oil. The multiple bend buffer sections may include a first bend buffer section 203 and a second bend buffer section 204, which are connected to each other. The second end of the oil drain pipe body 1, the first bend buffer section 203, the second bend buffer section 204, and the oil drain port 202 are arranged sequentially along the oil flow direction.

[0038] Preferably, such as Figure 4 As shown, in the embodiment, on the horizontal projection ( Figure 4 (This is a horizontal projection), the first bending buffer section 203 is located on the extension line of the axis of the oil drain pipe body 1 relative to the second bending buffer section 204. In other words, the bending radius of the first bending buffer section 203 is smaller than that of the second bending buffer section 204. In terms of helical parameters, the helical diameter of the first bending buffer section 203 is smaller than that of the second bending buffer section 204. When the oil enters the helical pipe 201 from the oil drain pipe body 1, it first enters the first bending buffer section 203 with the smaller bending radius. This arrangement provides initial buffering. Because the bending radius of the first bending buffer section 203 is small, the impact force of the oil is greatly reduced at the bend. However, the small bending radius also shortens the oil path. Due to gravity, the impact force is not completely reduced. Therefore, a second buffering is provided by the second bending buffer section 204, which has a larger bending radius but a longer flow path. This ensures that the oil entering the oil tank 303 can reduce most of the impact force and avoid disturbing the oil surface.

[0039] Preferably, such as Figure 4 As shown, in this embodiment, the spiral tube 201 may further include a third bending buffer section 205. However, it is not limited to this; the number of multiple bending buffer sections can be specifically selected according to the situation. If the depth of the oil sump 303 increases, the number of bending buffer sections can be increased accordingly, for example, to four, five, or six. In this embodiment, three bending buffer sections are included. The oil outlet 202 is connected to the second bending buffer section 204 through the third bending buffer section 205. Further, in such... Figure 4 On the horizontal projection shown, the second bending buffer section 204 is located near the extension line of the axis of the main body 1 of the oil drain pipe relative to the third bending buffer section 205. In other words, the bending radius of the third bending buffer section 205 is larger than that of the second bending buffer section 204. The larger bending radius of the third bending buffer section 205 allows the oil to flow slowly into the oil sump 303, such as... Figure 4 As can be seen from the oil flow path shown, the oil enters the oil sump 303 in a nearly horizontal direction, which can prevent the oil sump 303 from churning and producing bubbles.

[0040] Preferably, such as Figure 2 As shown, in this embodiment, the oil drain pipe body 1 may include a vertical pipe 101 and a horizontal pipe 102 connected to each other. The horizontal pipe 102 is connected to the frame 302, and the vertical pipe 101 is connected to the spiral oil drain section 2. The vertical pipe 101 is perpendicular to the oil sump 303. The oil drain pipe body 1 may be formed into an L-shaped structure. The L-shaped structure facilitates the oil drain pipe body 1 to be fitted inside the outer casing 301 and can simultaneously achieve connection with the frame 302 and the spiral oil drain section 2.

[0041] This oil drain pipe, which reduces oil surface disturbance, allows the oil entering the oil sump to enter tangentially through the cooperation of the drain pipe body and the spiral drain part. This avoids the oil entering the oil sump directly in a vertical direction, which would cause turbulence and bubbles in the oil sump. This ensures that the actual oil level of the compressor can be accurately assessed, guaranteeing working efficiency and accuracy. Furthermore, because the oil does not contain air bubbles, the oil drawn into the oil pump and entering the lubrication system ensures the lubrication effect of the lubrication system, guaranteeing the normal and stable operation of the compressor.

[0042] In addition, such as Figures 1 to 5 As shown, a compressor is provided according to a second aspect of this utility model. The compressor includes an oil drain pipe with the function of reducing oil surface disturbance as described above. During use, by providing an oil drain pipe with the function of reducing oil surface disturbance, the oil level in the oil sump 303 can be accurately assessed, and the reliability of the lubrication effect of the lubrication system can be guaranteed.

[0043] The compressor may include the aforementioned housing 301, frame 302, and oil sump 303, and may also include a support member 304. The support member 304 is disposed above the oil sump 303, and the support member 304 is used to support the crankshaft, oil pump, and other internal structures of the compressor, and to isolate these structures from the oil sump 303.

[0044] During use, this compressor can have the following characteristics: Figure 1 and Figure 2 The full oil condition shown and as Figures 3 to 5The diagram shows a low-oil state. When the oil tank 303 is full of oil, the oil level in the oil tank 303 is close to the support member 304. When the oil tank 303 is low-oil, the oil outlet 202 is located above the oil level in the oil tank 303. When the oil tank 303 is full of oil, since the spiral oil discharge part 2 is immersed in the oil, it only needs to discharge oil into the oil tank 303. When the oil tank 303 is low-oil, the oil outlet 202 is located above the oil level in the oil tank 303. In this case, it is necessary to ensure that the plane of the oil outlet 202 forms an angle with the oil level in the oil tank 303 to ensure that the oil enters the oil tank 303 tangentially.

[0045] Furthermore, when the oil sump 303 is full of oil, the second end of the oil drain pipe body 1 is located inside the oil sump 303. If the oil drain pipe with the function of reducing oil surface disturbance is a detachable connection structure, then the spiral oil drain part 2 does not need to be installed.

[0046] Furthermore, in cases such as Figures 3 to 5 As shown in the horizontal projection, the oil tank 303 includes an arc-shaped bottom wall 305 and vertical side walls 306. The vertical side walls 306 are located at both ends of the arc-shaped bottom wall 305. When the oil tank 303 is in a low-oil state, the oil flows through the oil drain port 202 to the connection between the arc-shaped bottom wall 305 and the vertical side walls 306. Figures 3 to 5 As shown in the oil flow path, even if there is little oil inside the oil tank 303, the oil will not directly hit the arc-shaped bottom wall 305 and the vertical side wall 306 when it is discharged due to the spiral oil discharge part 2. Instead, it will hit the connection between the two, which is an arc-shaped wall. This design can effectively prevent oil turbulence and bubbles.

[0047] During operation, this compressor is equipped with an oil drain pipe that reduces oil level disturbance, enabling accurate assessment of the oil level in the oil sump and ensuring the reliability of the lubrication system's lubrication effect, thus guaranteeing the compressor's stable, normal, and efficient operation.

[0048] Finally, it should be noted that the above-described embodiments are merely specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, but not to limit the same. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that any skilled person in the art can still modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features, within the technical scope disclosed by the present application. The modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An oil drain pipe with function of reducing oil surface disturbance, used in a compressor, the compressor comprising a housing, a frame, and an oil sump, characterized in that, The oil drain pipe with the function of reducing oil surface disturbance includes an oil drain pipe body and a spiral oil draining part. The oil drain pipe body is disposed inside the outer shell, and the first end of the oil drain pipe body is connected to the frame. The spiral oil draining part is located inside the oil tank. The spiral oil draining part includes a spiral tube and an oil drain port. The oil drain port is connected to the second end of the oil drain pipe body through the spiral tube. The plane where the oil drain port is located forms an angle with the oil surface of the oil tank.

2. The oil drain pipe with oil surface disturbance reduction function according to claim 1, characterized in that, The main body of the oil drain pipe is detachably connected to the spiral oil drain section.

3. The oil drain pipe with oil surface disturbance reduction function according to claim 1, characterized in that, The spiral tube includes multiple bend buffer sections, including a first bend buffer section and a second bend buffer section. The second end of the oil discharge pipe body, the first bend buffer section, the second bend buffer section and the oil discharge port are arranged sequentially along the oil flow direction.

4. The oil drain pipe with oil surface disturbance reduction function according to claim 3, characterized in that, In a horizontal projection, the first bending buffer section is located relative to the extension line of the axis of the second bending buffer section near the main body of the oil drain pipe.

5. The oil drain pipe with oil surface disturbance reduction function according to claim 4, characterized in that, The spiral tube further includes a third bending buffer section, and the oil outlet is connected to the second bending buffer section through the third bending buffer section; In a horizontal projection, the second bending buffer section is located relative to the extension line of the axis of the third bending buffer section near the main body of the oil drain pipe.

6. The oil drain pipe with oil surface disturbance reduction function according to claim 1, characterized in that, The main body of the oil drain pipe includes a vertical pipe and a horizontal pipe connected to each other. The horizontal pipe is connected to the frame, and the vertical pipe is connected to the spiral oil drain section. The vertical pipe is perpendicular to the oil sump.

7. A compressor, characterized in that, The compressor includes an oil drain pipe with the function of reducing oil surface disturbance as described in any one of claims 1 to 6.

8. The compressor according to claim 7, characterized in that, The oil sump is located at the bottom of the housing, and the compressor also includes a support member located at the top of the oil sump. The oil tank has a full oil state and a low oil state. When the oil tank is full, the oil level in the oil tank is close to the support member. When the oil tank is low, the oil outlet is located above the oil level in the oil tank.

9. The compressor according to claim 8, characterized in that, When the oil tank is full of oil, the second end of the main body of the oil drain pipe is located inside the oil tank.

10. The compressor according to claim 8, characterized in that, In a horizontal projection, the oil tank includes an arc-shaped bottom wall and vertical side walls. The vertical side walls are located at both ends of the arc-shaped bottom wall. When the oil tank is in a low-oil state, the oil flows through the oil outlet to the connection between the arc-shaped bottom wall and the vertical side walls.

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