A compact large-capacity oil sump structure for a compressor

Abstract

The utility model relates to a compact large -capacity oil tank structure for compressor, including compressor casing, the oil tank assembly of setting in the inside of compressor casing, the oil tank assembly includes basic oil tank, the basic oil tank is linked with the crankcase lubricating system oil circuit inside the compressor casing, the oil tank assembly still includes expansion oil tank, the expansion oil tank is linked with the basic oil tank intercommunication, the expansion oil tank is below the motor in the inside of compressor casing. The utility model increases expansion oil tank on the basis of the original basic oil tank, and expansion oil tank sets up in the empty space below the compressor motor, saves the installation space, increases the total capacity of compressor lubricating oil storage under the premise of guaranteeing that the overall space structure of compressor is compact, provides stable reliable lubricating system for compressor, improves the service life and performance of compressor.

Description

Technical Field

[0001] This utility model relates to a compact, large-capacity oil tank structure for compressors. Background Technology

[0002] Currently, in the application of refrigeration piston compressors, there is often a problem that the limited overall space of the compressor restricts the upper limit of the lubricating oil storage capacity. The small lubricating oil storage capacity may cause the following problems: (1) During the operation of the equipment, the small capacity oil tank is affected by vibration and impact, which can easily lead to fluctuations in the lubricating oil and affect the stability of the lubrication system; (2) The lubricating oil will generate heat during use. The heat dissipation area of ​​the small capacity oil tank is relatively small, which may lead to a rapid rise in oil temperature. Excessive oil temperature will reduce the performance of the lubricating oil, affect the lubrication effect, and may even cause the lubricating oil to deteriorate; (3) The small capacity oil tank is more sensitive to pressure fluctuations and oil return in the system. If there are large pressure fluctuations or poor oil return in the system, the small capacity oil tank may not be able to adjust the supply of lubricating oil in time, thereby affecting the stable operation of the compressor. All of the above problems may lead to poor lubrication of the internal parts of the compressor, aggravate wear, and reduce the service life and performance of the compressor. Therefore, while ensuring the overall space of the compressor is compact, ensuring sufficient lubricating oil storage capacity in the oil tank is an important prerequisite for ensuring the stable operation of the compressor. Utility Model Content

[0003] This utility model addresses the problems existing in the prior art by providing a compact, large-capacity oil tank structure for compressors.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a compact, large-capacity oil tank structure for a compressor, including a compressor housing and an oil tank assembly disposed inside the compressor housing. The oil tank assembly includes a base oil tank, which is connected to the oil circuit of the crankcase lubrication system inside the compressor housing. The oil tank assembly also includes an expansion oil tank, which is connected to the base oil tank.

[0005] Furthermore, the expanded oil sump is located below the motor inside the compressor housing.

[0006] Compared with the prior art, the present invention has the following effects: The present invention saves installation space by adding an expanded oil tank on the basis of the original basic oil tank and setting the expanded oil tank in the empty space below the compressor motor. Under the premise of ensuring the compact overall spatial structure of the compressor, it increases the total capacity of the compressor lubricating oil storage, provides a stable and reliable lubrication system for the compressor, and improves the service life and performance of the compressor. Attached Figure Description

[0007] Figure 1This is a schematic diagram of the front cross-sectional structure of an embodiment of the present invention.

[0008] In the picture: 1-Oil sump assembly; 2-Crankcase; 3-Crankshaft; 4-Connecting rod; 5-Compressor housing; 6-Piston; 7-Motor; 8-Base oil sump; 9-Extended oil sump; 10-Lubrication system oil passage. Detailed Implementation

[0009] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0010] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 utility model 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 utility model.

[0011] like Figure 1 As shown, this utility model discloses a compact, large-capacity oil tank structure for a compressor. It aims to ensure a compact overall compressor space while maintaining sufficient lubricating oil storage capacity within the oil tank, thereby guaranteeing stable lubrication of internal compressor components. Specifically, it includes a compressor housing 5 and an oil tank assembly 1 integrated into the lower part of the compressor housing 5. The oil tank assembly 1 includes a base oil tank 8 and an expansion oil tank 9. The base oil tank 8 is located below the crankcase 2 inside the compressor housing 5 and is connected to the oil passage 10 of the crankcase 2 lubrication system inside the compressor housing 5 to ensure basic oil supply to the lubrication system. The expansion oil tank 9 is connected to the base oil tank 8 and provides additional oil storage space for the oil tank assembly 1, increasing the total oil storage capacity of the assembly. A larger oil storage capacity means less impact of lubricating oil volume changes on the lubricating oil level depth, thus achieving the goal of ensuring stable lubricating oil level.

[0012] In this embodiment, the expanded oil sump 9 is located below the motor 7 inside the compressor housing 5, and the motor is connected to the crankshaft inside the crankcase. The expanded oil sump 9, positioned below the motor 7, fully utilizes the space below the motor 7, increasing the total lubricating oil storage capacity of the oil sump assembly 1 without increasing the maximum outer contour boundary of the compressor, thus achieving a compact overall compressor structure. A larger lubricating oil storage capacity ensures stable operation of the compressor's lubrication system, thereby preventing malfunctions in internal components such as the crankshaft 3, connecting rod 4, and piston 6 due to unstable lubricating oil.

[0013] The expansion oil tank 9 is connected to the base oil tank 8. The two oil tanks must be able to ensure smooth flow of lubricating oil so that the expansion oil tank can provide real-time lubricating oil compensation to the base oil tank.

[0014] The oil sump structure consists of a base oil sump and an extended oil sump. An extended oil sump is added to the existing base oil sump of a conventional compressor to increase the oil sump's storage capacity. The original base oil sump is located below the crankcase and connects to the lubrication system's oil passages to form a lubrication system circuit. The extended oil sump connects to the base oil sump and extends towards the compressor motor. The extended oil sump is positioned below the compressor motor, making full use of the space beneath the motor, and its outline does not exceed the compressor's original maximum outer contour boundary. This increases the lubricating oil storage capacity without increasing the compressor's maximum external space.

[0015] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then, unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).

[0016] In addition, unless otherwise stated, the terms used in any of the technical solutions disclosed in this utility model to indicate positional relationships or shapes include states or shapes that are similar to, close to, or approximate with those states or shapes.

[0017] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0018] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A compact, large-capacity oil sump structure for a compressor, comprising a compressor housing and an oil sump assembly disposed inside the compressor housing, the oil sump assembly including a base oil sump connected to the crankcase lubrication system oil passage inside the compressor housing, characterized in that: The oil tank assembly also includes an extended oil tank, which is connected to the base oil tank.

2. The compact, large-capacity oil tank structure for a compressor according to claim 1, characterized in that: The expanded oil tank is located below the motor inside the compressor housing.

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