A compressor and refrigeration equipment

Abstract

This invention discloses a compressor and a refrigeration device. The compressor includes a compressor housing with an inner cavity, a heat insulation component disposed within the inner cavity, and an oil delivery channel disposed between the heat insulation component and the compressor housing. This invention incorporates a heat insulation component within the cavity and forms an oil delivery channel between the heat insulation component and the inner wall of the compressor housing. Lubricating oil exiting the piston cylinder releases heat outward through the compressor housing as it passes through the oil delivery channel. Due to the presence of the heat insulation component, the lubricating oil in the oil delivery channel releases heat unidirectionally towards the compressor housing, preventing the transfer of heat from the lubricating oil into the inner cavity. This reduces the impact of the heated lubricating oil on the lubricating oil within the inner cavity during heat dissipation, thereby improving the heat dissipation efficiency of the lubricating oil.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and in particular to a compressor and refrigeration equipment. Background Technology

[0002] The compressor is a crucial component of refrigeration equipment. Refrigerant enters the compressor and is drawn into the piston cylinder by the piston's action. Inside the cylinder, it is compressed into a high-temperature, high-pressure gas, which is then discharged from the compressor. During this process, lubricating oil is added to the piston cylinder to ensure stable piston movement. This lubricating oil typically remains at the bottom of the inner cavity and is supplied to the piston cylinder by an oil pump for piston lubrication. Some of the used lubricating oil is then discharged back into the inner cavity through an oil delivery pipe. Because the lubricating oil passing through the piston cylinder is heated during piston movement, it needs to be cooled down during its discharge from the inner cavity.

[0003] In existing technologies, lubricating oil is generally sprayed directly onto the inner wall of the compressor housing, and heat is released to the outside through the compressor housing. With the above method, the heat of the lubricating oil is also released and transferred into the inner cavity when it is released to the outside through the compressor housing, thereby heating the lubricating oil remaining in the inner cavity and thus affecting the heat dissipation efficiency.

[0004] Therefore, it is necessary to propose a compressor that improves the heat dissipation efficiency of lubricating oil. Summary of the Invention

[0005] The purpose of this invention is to provide a compressor that overcomes the shortcomings of the prior art. It enables the lubricating oil in the oil delivery channel to release heat unidirectionally towards the compressor housing, avoiding the transfer of heat from the lubricating oil to the inner cavity. This reduces the impact of the heated lubricating oil on the lubricating oil in the inner cavity during heat dissipation and improves the heat dissipation efficiency of the lubricating oil.

[0006] The compressor provided by the present invention includes a compressor housing having an inner cavity, a heat insulation member disposed in the inner cavity, and an oil delivery channel disposed between the heat insulation member and the compressor housing.

[0007] As a further improvement of the present invention, the oil delivery channel includes an oil delivery groove disposed on the heat insulation member, the oil delivery groove being disposed on the side of the heat insulation member opposite to the inner wall of the compressor housing, and the groove opening of the oil delivery groove being attached to the inner wall of the compressor housing.

[0008] As a further improvement of the present invention, the heat insulation component includes a heat insulation plate, the oil channel is recessed on the heat insulation plate, and the heat insulation plate is attached to the inner wall of the compressor housing.

[0009] As a further improvement of the present invention, the oil delivery channel also has an oil inlet communicating with the oil delivery tank and an oil outlet communicating with the oil delivery tank; in the vertical direction, the oil outlet is positioned lower than the oil inlet, and the oil outlet is located near the bottom of the compressor housing.

[0010] As a further improvement of the present invention, the oil delivery tank extends in an S-shaped curve from top to bottom.

[0011] As a further improvement of the present invention, the oil conveying channel also has an oil inlet channel disposed on the heat insulation member, and the oil inlet is connected to the oil conveying tank through the oil inlet channel; the oil inlet channel has an oil inlet outlet disposed on the inner wall of the oil conveying tank, and the size of the oil inlet is larger than the size of the oil inlet outlet.

[0012] As a further improvement of the present invention, the oil delivery tank includes several oil delivery sub-tanks arranged in parallel along the vertical direction, the oil delivery sub-tanks extending in the horizontal direction, and adjacent oil delivery sub-tanks communicating with each other at their beginning and end to form an S-shaped curve oil delivery tank.

[0013] As a further improvement of the present invention, the heat insulation component is made of plastic.

[0014] As a further improvement of the present invention, the compressor also has a piston cylinder body disposed in the inner cavity, the piston cylinder body is provided with a cylinder body oil outlet, and the cylinder body oil outlet is connected to the oil inlet of the oil delivery channel through an oil delivery pipe.

[0015] This invention also discloses a refrigeration device, including a housing and a refrigeration system disposed on the housing, wherein the refrigeration system includes the compressor.

[0016] Compared with the prior art, the present invention creatively sets up a heat insulation component in the cavity and forms an oil delivery channel between the heat insulation component and the inner wall of the compressor housing. When the lubricating oil coming out of the piston cylinder passes through the oil delivery channel, it releases heat to the outside through the compressor housing. Due to the presence of the heat insulation component, the lubricating oil in the oil delivery channel releases heat unidirectionally towards the compressor housing, avoiding the transfer of heat from the lubricating oil into the inner cavity. This reduces the impact of the heated lubricating oil on the lubricating oil in the inner cavity during the heat dissipation process and improves the heat dissipation efficiency of the lubricating oil. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first installation structure of the compressor heat insulation component disclosed in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the second mounting structure of the compressor heat insulation component disclosed in an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the third mounting structure of the compressor heat insulation component disclosed in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the installation structure of the compressor heat insulation component and the oil pipeline disclosed in an embodiment of the present invention;

[0021] Figure 5 This is a first structural schematic diagram of the compressor heat insulation component disclosed in an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the second structure of the compressor heat insulation component disclosed in an embodiment of the present invention;

[0023] Explanation of reference numerals in the attached drawings: 1-Compressor housing, 10-Inner cavity, 2-Heat insulation component, 21-Heat insulation plate, 22-Channel column, 23-Sealing ring positioning groove, 3-Oil delivery channel, 31-Oil delivery trough, 310-Oil delivery branch trough, 311-Connecting groove, 32-Oil inlet, 33-Oil outlet, 34-Oil inlet channel, 4-Piston cylinder body, 5-Oil delivery pipe. Detailed Implementation

[0024] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0025] In the description of this invention, it should be understood that the terms "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] An embodiment of the present invention discloses a compressor used in a refrigeration device as part of a refrigeration system. The compressor is connected between an evaporator and a condenser to compress the refrigerant from the evaporator into a high-temperature, high-pressure gas, which then enters the condenser for cooling.

[0028] Specifically, such as Figure 1-3 As shown, the compressor includes a compressor housing 1 with an inner cavity 10, a heat insulation member 2 disposed in the inner cavity 10, and an oil delivery channel 3 disposed between the heat insulation member 2 and the compressor housing 1.

[0029] The refrigerant enters the compressor and flows into the inner cavity 10. Inside the inner cavity 10, a piston draws the refrigerant into the piston cylinder, where it is compressed into a high-temperature, high-pressure gas that is then discharged from the compressor. To ensure the stability of the piston's movement within the piston cylinder, lubricating oil is added. This lubricating oil typically remains at the bottom of the inner cavity 10 and is supplied to the piston cylinder via an oil pump for piston lubrication. Some of the used lubricating oil is then discharged back into the inner cavity 10 through an oil delivery pipe. Since the lubricating oil passing through the piston cylinder is heated during piston movement, it needs to be cooled during its discharge from the inner cavity 10.

[0030] In the prior art, lubricating oil is generally sprayed directly onto the inner wall of the compressor housing 1, and heat is released to the outside through the compressor housing 1. With the above method, the heat of the lubricating oil is also transferred into the inner cavity 10 when it is released to the outside through the compressor housing 1, thereby heating the lubricating oil remaining in the inner cavity 10, which in turn affects the heat dissipation efficiency.

[0031] This application creatively incorporates a heat insulation plate and a heat insulation component 2 within the cavity 10, and forms an oil delivery channel 3 between the heat insulation component 2 and the inner wall of the compressor housing 1. When the lubricating oil exiting the piston cylinder passes through the oil delivery channel 3, it releases heat outward through the compressor housing 1. Due to the presence of the heat insulation component 2, the lubricating oil in the oil delivery channel 3 releases heat unidirectionally towards the compressor housing 1, preventing the transfer of heat from the lubricating oil into the inner cavity 10. This reduces the impact of the heated lubricating oil on the lubricating oil in the inner cavity 10 during heat dissipation, thereby improving the heat dissipation efficiency of the lubricating oil.

[0032] In this embodiment, as Figure 4-6As shown, the oil delivery channel 3 includes an oil delivery groove 31 disposed on the heat insulation component 2. The oil delivery groove 31 is disposed on the side of the heat insulation component 2 opposite to the inner wall of the compressor housing 1, and the groove opening of the oil delivery groove 31 is attached to the inner wall of the compressor housing 1. Attaching the groove opening of the oil delivery groove 31 to the compressor housing 1 effectively makes a portion of the inner wall of the compressor housing 1 and the oil delivery groove 31 together form the channel wall of the oil delivery channel 3, meaning the oil delivery groove 31 is directly exposed to the compressor housing 1.

[0033] The oil delivery trough 31 is used to deliver lubricating oil. The lubricating oil flowing out of the piston cylinder releases heat as it flows through the oil delivery trough 31. Because the lubricating oil comes into direct contact with the compressor housing 1 as it flows through the oil delivery trough 31, the heat release through the compressor housing 1 is achieved more efficiently.

[0034] Of course, in another embodiment, the lubricating oil can also be transferred through an oil pipe in the oil delivery channel 3, and the oil pipe is set to fit against the inner wall of the compressor housing 1. Compared with the method of lubricating oil flowing directly in the oil delivery channel 3, the heat dissipation efficiency is lower by passing the oil pipe through the oil delivery channel 3.

[0035] like Figure 5 As shown, in this embodiment, the heat insulation component 2 includes a heat insulation plate 21, and the oil channel 31 is recessed on the heat insulation plate 21, with the heat insulation plate 21 attached to the inner wall of the compressor housing 1. The shape of the heat insulation plate 21 matches the shape of the inner wall of the compressor housing 1; when the inner wall of the compressor housing 1 is curved, the heat insulation plate 21 is also correspondingly curved. The oil channel 31 is directly recessed inward on the heat insulation plate 21. This structure allows the oil channel 31 and the compressor housing 1 to fit more tightly during the mutual contact process, preventing lubricating oil from leaking from the gap between the heat insulation plate 21 and the compressor housing 1, and also reducing the size of the heat insulation component 2 in the thickness direction, saving space.

[0036] In another embodiment, the heat insulation element 2 includes a heat insulation plate 21 and several protruding ribs extending outward from the heat insulation plate 21. An oil channel 31 is formed between adjacent ribs. During the process of fitting with the inner wall of the compressor housing 1, the ribs fit snugly against the inner wall of the compressor housing 1. Compared to the design where the oil channel 31 is recessed inward on the heat insulation plate 21, the heat insulation element 2 with the oil channel 31 recessed inward fits more tightly against the inner wall of the compressor housing 1.

[0037] The oil delivery channel 3 also has an oil inlet 32 ​​communicating with the oil delivery tank 31 and an oil outlet 33 communicating with the oil delivery tank 31; in the vertical direction, the oil outlet 33 is positioned lower than the oil inlet 32, and the oil outlet 33 is located near the bottom of the compressor housing 1.

[0038] In the prior art, the piston cylinder is generally located at a relatively high position. The lubricating oil coming out of the piston cylinder enters the oil inlet 32 ​​through the oil delivery pipe. Therefore, setting the oil inlet 32 ​​at a position higher than the oil outlet 33 makes it easier to connect and arrange the oil pipes.

[0039] More importantly, since the temperature of the area near the bottom of the compressor housing 1 is lower than that of the area near the top of the compressor housing 1, setting the oil outlet 33 near the bottom of the compressor housing 1 can achieve heat dissipation more efficiently, so that the heat of the lubricating oil coming out of the oil outlet 33 can be carried away by the compressor housing 1 more efficiently, ensuring that the lubricating oil coming out of the conveying channel 3 is fully cooled.

[0040] Furthermore, such as Figure 5 As shown, the oil delivery groove 31 extends in an S-shaped curve from top to bottom. This S-shaped curve arrangement allows the lubricating oil to contact the compressor housing 1 as much as possible as it flows through the groove, thereby improving cooling efficiency.

[0041] In this embodiment, the oil delivery channel 3 also has an oil inlet channel 34 disposed on the heat insulation member 2. The oil inlet 32 ​​is connected to the oil delivery tank 31 through the oil inlet channel 34. The oil inlet channel 34 has an oil inlet outlet disposed on the inner wall of the oil delivery tank 31, and the size of the oil inlet 32 ​​is larger than the size of the oil inlet outlet.

[0042] The heat insulation component 2 includes a heat insulation plate 21 and a channel column 22 disposed on the heat insulation plate 21. The channel column 22 is located near the top of the heat insulation plate 21. The oil inlet channel 34 is disposed on the channel column 22, and the oil inlet 32 ​​is located at the top of the channel column 22. The outlet of the oil inlet channel 34 forms an oil inlet outlet, which is disposed on the inner wall of the oil delivery groove 31. In this embodiment, the size of the oil inlet outlet is smaller than the size of the oil inlet 32. The above structure allows the lubricating oil entering the oil delivery groove 31 to flow in in small amounts, thereby achieving more sufficient contact with the compressor housing 1 and improving heat dissipation efficiency.

[0043] Specifically, such as Figure 5 and Figure 6 As shown, the oil delivery tank 31 includes several oil delivery sub-tanks 310 arranged in parallel along the vertical direction. The oil delivery sub-tanks 310 extend in the horizontal direction, and adjacent oil delivery sub-tanks 310 are connected to each other at the beginning and end by connecting grooves 311 to form an S-shaped curve oil delivery tank.

[0044] Multiple oil distribution channels 310 are arranged in parallel along the vertical direction. Each oil distribution channel 310 has a beginning and an end. In this embodiment, a total of seven oil distribution channels 310 are arranged in parallel along the vertical direction. The seven oil distribution channels 310 are arranged sequentially from top to bottom. The oil distribution channels in the first layer and the oil distribution channels in the second layer are connected to each other at their ends by a connecting groove 311. The oil distribution channels in the second layer and the oil distribution channels in the third layer are connected to each other at their beginnings by a connecting groove 311. It should be noted that the connecting groove 311 extends vertically and passes through the partition plate separating two adjacent oil distribution channels. Following the above pattern, the third oil distribution channel and the fourth oil distribution channel are connected to each other at their ends by a connecting groove 311, and so on, so that all the oil distribution channels 310 form an interconnected S-shaped curve oil distribution channel 310.

[0045] As a preferred embodiment, the heat insulation component 2 is made of plastic. Plastic has high heat insulation properties and can effectively prevent heat from diffusing into the inner cavity 10 of the compressor housing.

[0046] To achieve a better tight fit between the heat insulation component 2 and the compressor housing 1, a sealing component is also provided between the heat insulation component 2 and the compressor housing 1. The heat insulation component 2 is provided with a sealing ring positioning groove 23, and the sealing ring is positioned in the sealing ring positioning groove 23. The sealing positioning groove 23 is located on the outside of the oil delivery groove 310 and the sealing ring positioning groove 23 forms a surround around the area where the oil delivery groove 310 is located, so as to achieve a better sealing effect.

[0047] The heat insulation component 2 is fixedly connected to the compressor housing 1 by bolts. The heat insulation plate 21 is provided with bolt holes, and the compressor housing 1 is provided with bolt seats opposite to the bolt holes.

[0048] like Figure 4 As shown, the compressor also has a piston cylinder 4 disposed within the inner cavity. The piston cylinder 4 has an oil outlet, and the oil outlet is connected to the oil inlet 32 ​​of the oil delivery channel via an oil delivery pipe 5. In this embodiment, to better achieve cooling of the lubricant, two heat insulation components 2 are provided. The two heat insulation components are disposed on opposite sides of the inner wall of the compressor housing 1. Two oil delivery pipes 5 are provided and are respectively connected to the oil inlet 32 ​​on the heat insulation component 2.

[0049] Another embodiment of the present invention discloses a refrigeration device, including a housing and a refrigeration system disposed on the housing. The refrigeration system includes a compressor, a condenser, a throttling device, and an evaporator connected in series. The compressor is the compressor described above. The refrigeration device of the present invention can be a refrigerator, freezer, or wine cabinet, etc.

[0050] The above description, based on the embodiments shown in the figures, details the structure, features, and effects of the present invention. The above description is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the figures. Any changes made in accordance with the concept of the present invention, or equivalent embodiments modified to have equivalent changes, that do not exceed the spirit covered by the specification and figures, should be within the protection scope of the present invention.

Claims

1. A compressor characterized by, The compressor comprises a compressor shell with an inner cavity, two heat insulation pieces arranged in the inner cavity, and an oil delivery channel arranged between the heat insulation pieces and the compressor shell, the two heat insulation pieces being arranged on opposite sides of the inner wall of the compressor shell; the oil delivery channel comprises an oil delivery groove arranged on the heat insulation piece, an oil inlet communicated with the oil delivery groove, an oil outlet communicated with the oil delivery groove, and an oil inlet channel arranged on the heat insulation piece, the oil delivery groove extending in an S-shaped curve from top to bottom, the oil outlet being arranged lower than the oil inlet in the vertical direction, and the oil inlet being communicated with the oil delivery groove through the oil inlet channel; the oil inlet channel has an oil inlet outlet arranged on the inner wall of the oil delivery groove, and the size of the oil inlet is greater than that of the oil inlet outlet, so that the lubricating oil in the piston cylinder flows into the oil inlet channel through the oil inlet and then flows horizontally to the oil inlet outlet. The compressor further comprises a piston cylinder arranged in the inner cavity, and two oil delivery pipes respectively communicated with the cylinder oil outlet and the oil inlets of the two oil delivery channels.

2. The compressor of claim 1, wherein: The oil delivery groove is arranged on the side of the heat insulation piece opposite to the inner wall of the compressor shell, and the groove opening of the oil delivery groove is attached to the inner wall of the compressor shell.

3. The compressor of claim 2, wherein: The heat insulation piece comprises a heat insulation plate, the oil delivery groove is recessed on the heat insulation plate, and the heat insulation plate is attached to the inner wall of the compressor shell.

4. The compressor of claim 2, wherein: The oil outlet is arranged near the bottom of the compressor shell.

5. The compressor of claim 4, wherein: The oil delivery groove comprises a plurality of oil delivery sub-grooves arranged in parallel in the vertical direction, the oil delivery sub-grooves extending in the horizontal direction, and adjacent oil delivery sub-grooves being communicated with each other at the head and tail to form an S-shaped oil delivery groove.

6. The compressor of claim 1, wherein: The material of the heat insulation piece is plastic.

7. A refrigeration appliance characterized by: The refrigeration system comprises a compressor as claimed in any one of claims 1 to 6.

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