A pump body assembly, vertical compressor and air conditioner

Abstract

The application provides a pump body assembly applied to a vertical compressor of a refrigeration system, comprising a first pump body and an upper flange in contact with an upper end surface of the pump body, the first pump body is provided with a first sliding vane groove and an upper cylinder, one end of the first sliding vane groove on the radial outside of the first pump body is provided with a first spring hole, the upper end of the first sliding vane groove is provided with a second oil path extending along the radial direction of the first pump body, one end of the second oil path is communicated with the first spring hole, and the other end of the second oil path has a spacing with the upper cylinder, a first oil path is arranged between the second oil path and the upper end surface of the upper flange, a refrigerant outlet hole is arranged between the upper cylinder and the upper end surface of the upper flange, lubrication of the sliding vane groove of the pump body can be ensured, and meanwhile, the injection amount of lubricating oil in the vertical compressor can be reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of vertical compressor, and particularly relates to a pump body assembly, a vertical compressor and an air conditioner. BACKGROUND

[0002] Hydrocarbon refrigerants are concerned by the industry due to their green and low-carbon advantages. However, when hydrocarbon refrigerants are used in air conditioning systems, the refrigerant charge of the air conditioning system using hydrocarbon refrigerants must be limited due to the high flammability of hydrocarbon refrigerants.

[0003] When the refrigerant is reduced, the injection amount of lubricating oil in the vertical compressor also needs to be reduced accordingly to avoid the unit volume of refrigerant dissolving more lubricating oil and causing the heat exchange efficiency of the refrigerant to decrease. In the prior art, the height of the lubricating oil needs to exceed the upper end surface of the upper flange to meet the lubrication requirements of the sliding vane in the sliding vane groove of the pump body.

[0004] How to ensure the lubrication of the sliding vane groove of the pump body while reducing the injection amount of lubricating oil in the vertical compressor is a technical problem that needs to be solved at present. SUMMARY

[0005] Therefore, the present application provides a pump body assembly, a vertical compressor and an air conditioner, which can ensure the lubrication of the sliding vane groove of the pump body while reducing the injection amount of lubricating oil in the vertical compressor.

[0006] In a first aspect, the present application provides a pump body assembly applied to a vertical compressor of a refrigeration system, comprising a first pump body and an upper flange in contact with the upper end surface of the pump body, the first pump body is provided with a first sliding vane groove and an upper cylinder, the first sliding vane groove is provided with a first spring hole at one end of the radial direction of the first pump body; the upper end of the first sliding vane groove is provided with a second oil path extending along the radial direction of the first pump body, one end of the second oil path is in communication with the first spring hole, and the other end has a gap with the upper cylinder, a first oil path is arranged between the second oil path and the upper end surface of the upper flange, and a refrigerant outlet hole is arranged between the upper cylinder and the upper end surface of the upper flange.

[0007] In some embodiments, the pump body assembly comprises a second pump body provided with a second spring hole, the second pump body is arranged below the first pump body, and a partition plate is arranged between the second pump body and the first pump body; the pump body assembly further comprises a rotating shaft provided with a central oil hole, and the central oil hole is in communication with the second spring hole through a third oil path.

[0008] In some embodiments, the upper flange comprises a protrusion upward, the protrusion is provided with a shaft hole, an inner wall of the shaft hole is provided with a first groove and a second groove extending in the up-down direction, an upper end of the first groove communicates with an upper end of the second groove; a lower end of the first groove communicates with the central oil hole, and a lower end of the second groove communicates with the second spring hole; the third oil passage comprises the first groove and the second groove.

[0009] In some embodiments, the upper flange is provided with a first oil hole, the first pump body is provided with a second oil hole, and the partition plate is provided with a third oil hole; an inlet of the first oil hole communicates with the lower end of the second groove, an outlet of the third oil hole communicates with the second spring hole, and the first oil hole, the second oil hole and the third oil hole communicate in sequence.

[0010] In some embodiments, an outer periphery of the partition plate is provided with a protrusion, the protrusion is arranged between the first spring hole and the second spring hole.

[0011] In some embodiments, an upper end surface of the upper flange is provided with a recess, a bottom surface of the recess is provided with a valve piece, the valve piece covers the refrigerant outlet hole, and an inlet of the first oil passage is located on the bottom surface of the recess.

[0012] In the second aspect, the application provides a vertical compressor comprising a shell and the pump body assembly.

[0013] In some embodiments, a bottom of the shell is provided with an oil pool, an outer peripheral surface of the upper flange is connected with an inner wall surface of the shell, an outer peripheral surface of the first pump body is spaced apart from the inner wall surface of the shell, the first spring hole communicates with the space, and the space communicates with the oil pool.

[0014] In some embodiments, the second spring hole communicates with the oil pool.

[0015] In some embodiments, the pump body assembly further comprises a lower pump body, and the oil pool of the vertical compressor is filled with lubricating oil, and when the vertical compressor is not working, a liquid level of the lubricating oil in the oil pool is not higher than a lower end surface of the lower pump body.

[0016] In the third aspect, the application further provides an air conditioner comprising the vertical compressor.

[0017] The application sets the first oil path on the upper flange and sets the second oil path on the upper end of the first sliding slot, the lubricating oil above the upper flange can enter the second oil path from the first oil path, the lubricating oil flows downward when flowing in the second oil path, lubricates the sliding piece in the first sliding slot, and the lubricating oil can be temporarily stored in the first spring hole, the sliding piece can contact the lubricating oil in the first spring hole when sliding, and the lubricating effect on the sliding piece is provided. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. The drawings in the following description are only exemplary, and other embodiments can be derived from the provided drawings without creative labor for those skilled in the art.

[0019] Figure 1 is a schematic view of a pump body assembly of an embodiment of the present application;

[0020] Figure 2 is a schematic view of a compressor provided with the pump body assembly in Figure 1 ;

[0021] Figure 3 is an axial view of the pump body assembly in Figure 2 ;

[0022] Figure 4 is a sectional view of the pump body assembly along B-B in Figure 3 ;

[0023] Figure 5 is a partial sectional view of the pump body assembly along the position of the first sliding slot in an embodiment of the present application;

[0024] Figure 6 is an enlarged view of A in Figure 5 ;

[0025] Figure 7 is a sectional view of the upper flange in an embodiment of the present application;

[0026] Figure 8 is a schematic view of a first pump body structure in an embodiment of the present application;

[0027] Figure 9 is a schematic view of a second pump body structure in an embodiment of the present application;

[0028] Figure 10 is a schematic view of a partition plate structure in an embodiment of the present application;

[0029] Figure 11 is a sectional view along the third oil hole in an embodiment of the present application;

[0030] Figure 12 are embodiments of the present application Figure 2 is an enlarged view of C in FIG.

[0031] Reference signs are as follows:

[0032] 101, upper flange; 102, lower flange; 1011, shaft hole; 1012, recess; 201, first pump body; 202, second pump body; 2012, first spring hole; 2022, second spring hole; 2011, first sliding vane groove; 2021, second sliding vane groove; 3, partition plate; 301, first oil path; 302, second oil path; 303, protrusion; 401, first recess; 402, second recess; 501, first oil hole; 502, second oil hole; 503, third oil hole; 6, interval; 7, rotating shaft; 701, central oil hole. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0034] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component.

[0035] For purposes of the description hereinafter, spatial relative terms, such as "above", "below", "upper", "lower", and the like, can be used to describe the relative position of one element or feature to another as illustrated in the figures. It will be understood that the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device is inverted, then the elements or features which are described as being above other elements or features would then be oriented below the other elements or features. Thus, the example term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatial relative descriptors used herein interpreted accordingly.

[0036] In addition, it should be noted that the use of "first", "second", and the like words of distinction do not connote any actual physical or chronological order, but are used to distinguish one element from another. In addition, the words "first", "second", and the like can be used herein to describe various elements in various embodiments, but there is no requirement or implication that these elements be in any type of custody or priority with respect to one another, unless the context clearly dictates otherwise.

[0037] The present application provides a pump body assembly, a vertical compressor and an air conditioner, which can ensure the lubrication of the slide groove of the pump body and reduce the injection amount of lubricating oil in the vertical compressor.

[0038] With reference to Figures 1-11 The present application provides a pump body assembly applied to a vertical compressor of a refrigeration system, which comprises a first pump body 201 and an upper flange 101 in contact with the upper end surface of the pump body. The first pump body 201 is provided with a first slide groove 2011 and an upper cylinder. The first slide groove 2011 is provided with a first spring hole 2012 at one end in the radial direction of the first pump body 201. The upper end of the first slide groove 2011 is provided with a second oil path 302 extending along the radial direction of the first pump body 201. One end of the second oil path 302 is in communication with the first spring hole 2012, and the other end has a spacing 6 from the upper cylinder. A first oil path 301 is arranged between the second oil path 302 and the upper end surface of the upper flange 101. A refrigerant outlet hole is arranged between the upper cylinder and the upper end surface of the upper flange 101.

[0039] When the vertical compressor of the refrigeration system is working, high-pressure refrigerant containing lubricating oil flows out from the refrigerant outlet hole. The lubricating oil and the refrigerant are separated in the space above the upper flange 101 (the upper end surface of the upper flange 101 is generally provided with a special separation cover, and the refrigerant containing oil lubricating oil is separated in the separation cover), and the gaseous refrigerant flows out of the separation cover. Figure 5 and Figure 6 、 Figure 8As shown, the separated lubricating oil flows downward under the action of gravity and collects on the upper end surface of the upper flange 101, lubricates into the first oil path 301, and then into the second oil path 302. Since the second oil path 302 is arranged at the upper end of the vane groove, the lubricating oil flowing along the second oil path 302 is lubricated into the first vane groove 2011 under the action of gravity, and part of the lubricating oil can flow into the first spring hole 2012 and be stored in the first spring hole 2012. The sliding vane in the first vane groove 2011 can contact the lubricating oil in the first spring hole 2012, thereby further lubricating the sliding vane.

[0040] By the above-mentioned way of lubricating the sliding vane in the first vane groove 2011, it is not necessary that the oil pool liquid level in the vertical compressor is higher than the first pump body 201, which is conducive to reducing the oil storage capacity of the lubricating oil in the vertical compressor.

[0041] Preferably, as shown in Figure 1 Figure 2 and Figure 4 As shown, the pump body assembly includes a second pump body 202, the second pump body 202 is provided with a second spring hole 2022, the second pump body 202 is arranged below the first pump body 201, and a partition plate 3 is arranged between the second pump body 202 and the first pump body 201; the pump body assembly further includes a rotating shaft 7, the rotating shaft 7 is provided with a central oil hole 701, and the central oil hole 701 and the second spring hole 2022 are communicated through a third oil path.

[0042] The lower end of the central oil hole 701 of the rotating shaft 7 extends into the oil pool, the rotating shaft 7 rotates, the lubricating oil in the oil pool enters the central oil hole 701, and then enters the second spring hole 2022 through the third oil path. As shown in Figure 9 The second pump body 202 is provided with a second vane groove 2021, and the second spring hole is communicated with the second vane groove 2021. The second vane groove 2021 can contact the lubricating oil in the second spring hole 2022 during sliding, thereby lubricating the sliding vane in the second vane groove 2021.

[0043] By the above-mentioned way of lubricating the sliding vane in the second vane groove 2021, it is not necessary that the oil pool liquid level in the vertical compressor is higher than the second pump body 202, which is conducive to reducing the oil storage capacity of the lubricating oil in the vertical compressor.

[0044] The lubrication of the first vane groove 2011 and the second vane groove 2021 adopts the above-mentioned two independent flow paths, which can avoid the phenomenon that the temperature of the lubricating oil is too high due to the too long path of a single flow path.

[0045] The first sliding groove 2011 is close to the upper end surface of the upper flange 101, and the first oil path 301 and the second oil path 302 are arranged, so that the lubricating oil can lubricate the sliding pieces in the first sliding groove 2011 under the action of gravity, and the structure is relatively simple. The second sliding groove 2021 is far away from the upper end surface of the upper flange 101, and the lubricating oil can only flow to the second sliding groove 2021 by gravity, which can cause the lubricating oil to flow too slowly, and further cause the lubricating effect of the second sliding groove 2021 to be poor; the sliding pieces in the second sliding groove 2021 are lubricated by the way that the central oil hole 701 is communicated with the second sliding groove 2021, and the pressure generated by the centrifugal force of the lubricating oil in the central oil hole 701 is used, so that the lubricating oil can flow to the second sliding groove 2021 quickly under the action of high pressure, and the lubricating effect of the second sliding groove 2021 is improved.

[0046] The lower flange 102 is arranged below the second pump body 202, and the lower flange 102 avoids the second spring hole 2022 in the axial direction of the rotating shaft 7, so that the lubricating oil entering the second spring hole 2022 can flow back to the oil pool downward.

[0047] Preferably, as shown in Figure 4 and Figure 7 The upper flange 101 includes a protrusion facing upward, the protrusion is provided with a shaft hole 1011, an inner wall of the shaft hole 1011 is provided with a first groove 401 and a second groove 402 extending in the upward-downward direction, an upper end of the first groove 401 is communicated with an upper end of the second groove 402; a lower end of the first groove 401 is communicated with the central oil hole 701, and a lower end of the second groove 402 is communicated with the second spring hole 2022; the third oil path includes the first groove 401 and the second groove 402.

[0048] The rotating shaft 7 is provided with an oil discharge hole, the oil discharge hole is communicated with the lower end of the first groove 401; the lubricating oil in the central oil hole 701 enters the first groove 401 and flows upward, and then flows downward to the lower end of the second groove 402, and finally enters the second spring hole 2022. Through the first groove 401 and the second groove 402, the lubricating oil can lubricate the outer circular surface of the rotating shaft 7 when flowing in the first groove 401 and the second groove 402, and the friction between the rotating shaft 7 and the inner wall surface of the shaft hole 1011 is reduced.

[0049] Further, the first groove 401 is a spiral groove, so as to reduce the resistance of the lubricating oil flowing upward.

[0050] Preferably, as shown in Figure 4 and Figure 7As shown in the drawings, the upper flange 101 is provided with a first oil hole 501, the first pump body is provided with a second oil hole 502, and the partition plate 3 is provided with a third oil hole 503; the inlet of the first oil hole 501 is communicated with the lower end of the second groove 402, the outlet of the third oil hole 503 is communicated with the second spring hole 2022, and the first oil hole 501, the second oil hole 502 and the third oil hole 503 are communicated in sequence.

[0051] By arranging the first oil hole 501, the second oil hole 502 and the third oil hole 503, the lubricating oil flowing out of the second groove 402 can flow into the second spring hole 2022 in sequence through the first oil hole 501, the second oil hole 502 and the third oil hole 503, thereby achieving the purpose of lubricating the sliding vane in the second sliding vane groove 2021.

[0052] Preferably, as shown in the drawings, Figure 10 and Figure 11 The outer periphery of the partition plate 3 is provided with a protruding portion 303, and the protruding portion 303 is arranged between the first spring hole 2012 and the second spring hole 2022.

[0053] The protruding portion 303 is arranged between the first spring hole 2012 and the second spring hole 2022, thereby sealing the bottom of the first spring hole 2012, and the lubricating oil entering the first spring hole 2012 can be stored in the first spring hole 2012, further improving the lubricating effect of the sliding vane in the first sliding vane groove 2011.

[0054] Preferably, as shown in the drawings, Figure 4 , Figure 6 and Figure 7 The upper end surface of the upper flange 101 is provided with a recessed portion 1012, the bottom surface of the recessed portion 1012 is provided with a valve piece, the valve piece covers the refrigerant outlet hole, and the inlet of the first oil way 301 is located on the bottom surface of the recessed portion 1012.

[0055] By arranging the recessed portion 1012, the length of the refrigerant outlet hole is reduced, thereby reducing the clearance volume of the upper cylinder. The lubricating oil separated from the oil and gas flows into the recessed portion 1012 under the action of gravity, and the inlet of the first oil way 301 is arranged on the bottom surface of the recessed portion 1012, which is cleverly used for the existing recessed portion 1012 for arranging the valve piece, so that the lubricating oil can be collected and enter the first oil way 301 as soon as possible, without reprocessing the upper end surface of the upper flange 101, thereby improving the production efficiency.

[0056] The application provides a vertical compressor, as shown in the drawings, comprising a shell and the pump body assembly. Figure 2 As shown in the drawings, the vertical compressor comprises a shell and the pump body assembly.

[0057] The vertical compressor refers to that, in a normal working state of the compressor, the rotating shaft 7 of the pump body assembly is in a vertical direction.

[0058] Preferably, as shown in Figure 2 and Figure 12 shown, the bottom of the shell is provided with an oil pool, the outer peripheral surface of the upper flange 101 is connected with the inner wall surface of the shell, a gap 6 is formed between the outer peripheral surface of the first pump body 201 and the inner wall surface of the shell, the first spring hole 2012 communicates with the gap 6, and the gap 6 communicates with the oil pool.

[0059] When the lubricating oil in the first spring hole 2012 is more, it can flow into the gap 6 and then flow from the gap 6 to the oil pool, so as to realize the backflow of the lubricating oil and avoid the accumulation of too much lubricating oil above the upper flange 101, which leads to insufficient lubricating oil in the oil pool. The lubricating oil has a backflow oil pool and circulates, which is also beneficial to the cooling of the lubricating oil. After the lubricating oil enters the oil pool, the small particles in the lubricating oil can be filtered under the action of the filter, thereby improving the cleanliness of the lubricating oil. Since the lubricating oil above the upper flange 101 can enter the oil pool through the first oil path 301, the second oil path 302, the first spring hole 2012 and the gap 6, it is not necessary to specially process a hole on the upper flange 101 for the backflow of the lubricating oil to the oil pool.

[0060] Specifically, the plug for fixing the spring in the first spring hole 2012 is provided with a through hole, and the through hole communicates the first spring hole 2012 and the gap 6. The upper end surface of the first pump body 201 can be completely attached to the lower end surface of the upper flange 101, thereby improving the stability of the fixation of the first pump body 201.

[0061] Further, the outer peripheral surface of the upper flange 101 is sealingly connected with the inner wall surface of the shell, the space above the upper flange 101 communicates with the space below the upper flange 101 through the first oil path 301, the second oil path 302, the first spring hole 2012 and the gap 6. Since the lubricating oil above the upper flange 101 flows through the first oil path 301, the second oil path 302, the first spring hole 2012 and the gap 6 and then enters the oil pool, the refrigerant above the upper flange 101 cannot enter the oil pool through the upper flange 101, which is beneficial to the stability of the liquid level of the oil pool and avoids the high-temperature refrigerant from causing the lubricating oil to be too high in temperature. Since the lubricating oil above the upper flange 101 can only enter the oil pool through the first oil path 301, the second oil path 302, the first spring hole 2012 and the gap 6, the lubrication efficiency of the slide in the first slide groove 2011 is improved.

[0062] Preferably, as shown in Figure 2 the second spring hole 2022 communicates with the oil pool.

[0063] The lubricating oil entering the second spring hole 2022 can flow into the oil pool, improving the flowability of the lubricating oil in the second spring hole 2022. The lubricating oil in the second spring hole 2022 continuously flows in and out, which is conducive to cooling the lubricating oil.

[0064] Preferably, as shown in the drawings, the pump body assembly further comprises a lower pump body, and the oil pool of the vertical compressor is filled with lubricating oil, and the liquid level of the lubricating oil in the oil pool is not higher than the lower end surface of the lower pump body when the vertical compressor is not working. Figure 2

[0065] The oil level of the lubricating oil is not higher than the lower end surface of the lower pump body, which reduces the injection amount of the lubricating oil, and in turn reduces the lubricating oil content entering the air conditioning system from the exhaust pipe along with the compressed refrigerant, greatly reduces the oil film formed in the system pipeline, improves the heat exchange efficiency of the refrigerant, and in turn reduces the energy efficiency of the air conditioning system.

[0066] The application further provides an air conditioner comprising the vertical compressor.

[0067] In the vertical compressor, in addition to the fact that the internal space contains a large amount of refrigerant, a large amount of refrigerant is also dissolved in the lubricating oil. Therefore, when the vertical compressor uses lubricating oil that is incompatible with the refrigerant, the refrigerant content in the lubricating oil can be significantly reduced. In addition, by using incompatible oil, the injection amount of the lubricating oil can be reduced to a certain extent, the lubricating oil content entering the air conditioning system from the exhaust pipe along with the compressed refrigerant is reduced, the oil film formed in the system pipeline is greatly reduced, the heat exchange efficiency of the refrigerant is improved, and the energy efficiency of the air conditioning system is reduced. By using the pump body assembly of the application, the injection amount of the lubricating oil can be further reduced, and in turn the lubricating oil content entering the air conditioning system from the exhaust pipe along with the compressed refrigerant is reduced, the oil discharge rate of the vertical compressor is reduced, the oil film formed in the system pipeline is greatly reduced, the heat exchange efficiency of the refrigerant is improved, and the energy efficiency of the air conditioning system is reduced.

[0068] It is easy for those skilled in the art to understand that the advantageous technical features of the above-mentioned modes can be freely combined and superimposed without conflict.

[0069] The above description is only the preferred embodiment of the application and is not intended to limit the application. Any modification, equivalent replacement and improvement made within the spirit and principle of the application shall be included in the protection scope of the application. The above description is only the preferred embodiment of the application, and it should be pointed out that those skilled in the art can make several improvements and modifications without departing from the technical principles of the application, and these improvements and modifications shall be regarded as the protection scope of the application.​

Claims

1. A pump body assembly applied to a vertical compressor of a refrigeration system, comprising a first pump body (201) and an upper flange (101) in contact with an upper end surface of the pump body, the first pump body (201) being provided with a first vane slot (2011) and an upper cylinder, the first vane slot (2011) being provided with a first spring hole (2012) at one end of a radial outer side of the first pump body (201); characterized in that, The upper end of the first sliding vane groove (2011) is provided with a second oil passage (302) extending along the radial direction of the first pump body (201), one end of the second oil passage (302) is communicated with the first spring hole (2012), a first oil passage (301) is arranged between the second oil passage (302) and the upper end surface of the upper flange (101), and a refrigerant outlet hole is arranged between the upper cylinder and the upper end surface of the upper flange (101). The pump body assembly comprises a second pump body (202), the second pump body (202) is provided with a second spring hole (2022), the second pump body (202) is arranged below the first pump body (201), and a partition plate (3) is arranged between the second pump body (202) and the first pump body (201); the pump body assembly further comprises a rotating shaft (7), the rotating shaft (7) is provided with a central oil hole (701), and the central oil hole (701) is communicated with the second spring hole (2022) through a third oil passage; The upper flange (101) comprises a protrusion facing upward, the protrusion is provided with a shaft hole (1011), the inner wall of the shaft hole (1011) is provided with a first groove (401) and a second groove (402) extending in the up-down direction, the upper end of the first groove (401) is communicated with the upper end of the second groove (402), the lower end of the first groove (401) is communicated with the central oil hole (701), and the lower end of the second groove (402) is communicated with the second spring hole (2022); the third oil passage comprises the first groove (401) and the second groove (402); The upper flange (101) is provided with a first oil hole (501), the first pump body (201) is provided with a second oil hole (502), and the partition plate (3) is provided with a third oil hole (503); the inlet of the first oil hole (501) is communicated with the lower end of the second groove (402), the outlet of the third oil hole (503) is communicated with the second spring hole (2022), and the first oil hole (501), the second oil hole (502) and the third oil hole (503) are communicated in sequence.

2. The pump body assembly of claim 1, wherein, The outer periphery of the partition plate (3) is provided with a protruding portion (303), and the protruding portion (303) is arranged between the first spring hole (2012) and the second spring hole (2022).

3. The pump body assembly of any of claims 1-2, wherein, The upper end surface of the upper flange (101) is provided with a recessed portion (1012), the bottom surface of the recessed portion (1012) is provided with a valve piece, the valve piece covers the refrigerant outlet hole, and the inlet of the first oil passage (301) is located on the bottom surface of the recessed portion (1012).

4. A vertical compressor characterized by, The shell is provided with an oil pool, the outer peripheral surface of the upper flange (101) is connected with the inner wall surface of the shell, a gap (6) is formed between the outer peripheral surface of the first pump body (201) and the inner wall surface of the shell, the first spring hole (2012) is communicated with the gap (6), and the gap (6) is communicated with the oil pool.

5. The vertical compressor according to claim 4, characterized in that, ​ 6. The vertical compressor according to claim 5, characterized in that, The second spring hole (2022) is communicated with the oil pool.

7. The vertical compressor according to claim 4, characterized in that, The pump body assembly further comprises a lower pump body, and the oil pool of the vertical compressor is filled with lubricating oil, and when the vertical compressor is not working, the liquid level of the lubricating oil in the oil pool is not higher than the lower end surface of the lower pump body.

8. An air conditioner characterized by comprising: The vertical compressor comprises the lower pump body.

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