Horizontal compressor and new energy automobile

Abstract

The utility model provides a horizontal compressor and new energy automobile, the horizontal compressor includes: a middle shell, a rear shell enclose to form a cavity for accommodating motor, orbiting scroll and static scroll, the first side of static scroll departing from the cavity is provided with vent hole and oil return port; the oil-gas separation cover is covered by the front shell and connected to the first side of the static vortex plate, the oil-gas separation cover comprises an oil-gas separation cavity internally provided with a core rod, the oil-gas separation cover and the static vortex plate define an oil content expansion cavity communicated with the exhaust hole, and the side direction of the oil-gas separation cavity is communicated with the oil content expansion cavity through a rectification channel. A first oil outlet is formed in the bottom of the oil-gas separation cavity to be communicated with the inverted-L-shaped oil outlet pipeline, a second oil outlet is formed in the upper end of the inverted-L-shaped oil outlet pipeline, and lubricating oil flowing into the inverted-L-shaped oil outlet pipeline from the oil-gas separation cavity overflows from the second oil outlet after flowing in the anti-gravity direction. According to the utility model, lubricating oil flowing at a high speed can be effectively prevented from directly impacting the bottom oil pool, the condition that the oil level is unstable is avoided, and the separation efficiency and the stability are improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicle-mounted refrigeration equipment, and specifically to a horizontal compressor and a new energy vehicle. Background Art

[0002] Scroll compressors require sufficient oil to lubricate key components such as the rotating and stationary scrolls and bearings. Typically, the lubricating oil is discharged from the compressor along with the refrigerant. Maximizing oil-gas separation and maximizing oil storage space are crucial for compressor reliability. Furthermore, compressors generate noise during operation, typically originating from compressor gas noise, scroll meshing, and valve plate vibration. Therefore, equipping the compressor's exhaust side with a silencer is commonplace.

[0003] Existing scroll compressors usually use a centrifugal rotating oil-gas separation structure, which has a poor oil-gas separation effect and no obvious silencing or noise reduction function. At the same time, the oil storage tank space is limited to the internal space of the high-pressure cover, and the oil storage space is small, resulting in poor oil return effect of the compressor and greatly reduced reliability.

[0004] Patent CN115370572A provides an oil separation hood and a scroll compressor. The oil separation hood is used for oil and gas separation in a scroll compressor and includes a base and a hood body connected to the base. The hood body is provided with an air inlet chamber that can be connected to the exhaust port of the static scroll of the compressor, an oil separation structure, and an oil pool that can be connected to the oil storage chamber of the front shell of the scroll compressor. The oil separation structure includes a channel housing provided with an oil and gas passage, an air inlet, an oil outlet passage, and a first exhaust port. The air inlet connects the air inlet chamber and the oil and gas passage. The oil outlet passage is provided in the channel housing and has an oil inlet hole that connects the oil and gas passage and the oil pool. The first exhaust port is provided at the other end of the channel housing and can be connected to the exhaust port of the scroll compressor. The oil separation hood of the utility model is provided with an oil separation structure and an oil pool, which greatly increases the oil storage space of the compressor, allowing the entire compressor to obtain better oil return and lubrication. At the same time, the oil separation hood is designed with a noise reduction and vibration reduction structure, which effectively reduces the exhaust noise of the compressor. However, this structure is difficult to meet the oil return requirements. At high speeds and high oil circulation rates, the oil-air mixture tumbles disorderly on the compressor's exhaust side, making it impossible to accurately measure the oil level on the compressor's front housing, which means poor oil return. Consequently, the lubrication and sealing of the orbiting and static scrolls cannot be effectively achieved, and the overall temperature rise of the compressor cannot be effectively controlled, resulting in poor heat dissipation and a shortened compressor lifespan.

[0005] Patent CN215633776U provides an oil-gas separator, a compressor and an air conditioner. The compressor includes a static scroll exhaust port. The oil-gas separator includes a cover body. An air inlet cavity is provided in the cover body. The air inlet cavity is connected to the static scroll exhaust port. At least one oil-gas separation channel is also provided in the cover body. One end of each oil separation channel in the oil-gas separation channel is connected to the air inlet cavity, and the other end is connected to the outside of the cover body. At least one oil return channel is also provided in the cover body. The oil return channel is constructed to discharge the lubricating oil in the oil-gas separation channel and / or the air inlet cavity. The oil-gas separator disclosed in the present invention is used for oil and gas separation of a scroll compressor. A plurality of oil-gas separation channels and oil return channels are provided in the cover body. The oil-gas separation channel has an oil-gas separation function, which reduces the amount of lubricating oil discharged, improves the reliability of the compressor, enhances the heat exchange performance of the compressor and the energy efficiency of the entire machine, reduces exhaust noise, and reduces the temperature of high-temperature refrigerant gas. However, the oil-gas separator structure is complex and expensive, with multiple oil-gas separation channels, oil return channels, and various internal structures (such as rotating oil baffles and a labyrinth structure). This structure also occupies a large space, which may impose certain limitations on the overall structural design of the compressor.

[0006] In the above structure, the scroll compressor has the following disadvantages:

[0007] (1) The oil-gas separation effect on the exhaust side is poor. During the operation of the compressor, the oil-gas separation link on the exhaust side has obvious defects and fails to achieve the ideal separation effect. Specifically, when the oil-gas mixture passes through the exhaust side, the gaseous refrigerant and the refrigeration oil cannot be effectively separated. This results in the gaseous refrigerant still containing a large amount of refrigeration oil, and the refrigeration oil cannot be completely returned to the area where it should be.

[0008] (2) Poor oil return performance at high compressor speeds and high oil circulation rates (OCR). Poor oil return performance becomes a prominent issue when the compressor is operating at high speeds and high oil circulation rates. Under these high-load operating conditions, the flow rate of the oil-air mixture inside the compressor increases, and the interaction between the oil and air becomes more complex.

[0009] (3) The existing design structure is complex and the cost is high. The current compressor oil separation design is too complex in structure.

[0010] In view of this, the utility model provides a horizontal compressor and a new energy vehicle. Utility Model Content

[0011] In response to the problems in the existing technology, the horizontal compressor and new energy vehicle of the present invention overcome the difficulties of the existing technology, can effectively prevent high-speed flowing lubricating oil from directly impacting the bottom oil pool, avoid causing unstable oil surface, and improve separation efficiency and stability.

[0012] An embodiment of the present invention provides a compressor suspension assembly, comprising:

[0013] The middle shell and the rear shell together form a cavity for accommodating the motor, the movable scroll and the fixed scroll. The first side of the fixed scroll facing away from the cavity is provided with an exhaust hole and an oil return port.

[0014] An oil-gas separation cover is covered by the front shell and connected to the first side of the static vortex, the oil-gas separation cover includes an oil-gas separation chamber with a core rod inside, the oil-gas separation cover and the static vortex together form an oil expansion chamber connected to the exhaust hole, the side of the oil-gas separation chamber is connected to the oil expansion chamber through at least one rectifying channel, the bottom of the oil-gas separation chamber is provided with at least one first oil outlet to connect to an inverted L oil outlet pipeline, the upper end of the inverted L oil outlet pipeline is provided with a second oil outlet, the lubricating oil flowing from the oil-gas separation chamber into the inverted L oil outlet pipeline overflows from the second oil outlet after at least flowing in the anti-gravity direction.

[0015] Preferably, a first distance between the first oil outlet and the liquid surface of the oil pool is smaller than a second distance between the second oil outlet and the liquid surface of the oil pool.

[0016] Preferably, the inverted L-shaped oil outlet pipeline includes a horizontal oil circuit and an oblique oil circuit extending upward along the outer wall of the oil-gas separation chamber. The horizontal oil circuit is connected to the bottom of the oblique oil circuit. The horizontal oil circuit is located in the lower part of the oil-gas separation chamber, and the outside of the side wall of the oil-gas separation chamber at least partially forms the tube wall of the oblique oil circuit.

[0017] Preferably, the bottom of the oil-gas separation chamber forms a separation chamber bottom plate, which is arranged on the top of the first end of the separation chamber bottom plate connected to the horizontal oil circuit and away from the oblique oil circuit.

[0018] Preferably, an arc guide portion is further provided inside the horizontal oil circuit, the arc guide portion is located at the lower part of the first oil outlet, and guides the oil to the second end of the horizontal oil circuit. A pipeline oil drain port is also provided at the bottom of the second end of the horizontal oil circuit, which is connected to the bottom oil pool.

[0019] Preferably, a high-pressure chamber is formed between the front shell and the static scroll, the high-pressure chamber is provided with an exhaust port connected to the outside, and the top of the oil-gas separation chamber is provided with a refrigerant outlet connected to the high-pressure chamber.

[0020] Preferably, a first cylindrical separation chamber is formed between the outer wall of the core rod and the inner wall of the oil-gas separation chamber, and the oil-gas separation cover is provided with a protruding oblique boss on the side facing the static vortex, and the bottom of the first separation chamber is gathered inward to form a funnel structure. The inner wall of the core rod is surrounded to form a second separation chamber, and the second separation chamber is a rod-shaped separation chamber. A rectifying channel connecting the oil expansion chamber and the first separation chamber is provided inside the oblique boss, and an extension direction of the rectifying channel is tangent to the annular flow channel where the first separation chamber is located, and a first projection of the first separation chamber based on the horizontal plane and a second projection of the rectifying channel based on the horizontal plane do not overlap with each other.

[0021] Preferably, the oil-gas separation cover also includes a horizontal baffle and a vertical baffle, the horizontal baffle covers the bottom oil pool and is distributed with a plurality of through holes, and the edge of the horizontal baffle is also provided with a plurality of notches, and the flow channel formed by the notches and the inner wall of the front shell is for the lubricating oil after the oil and gas separation on the upper part of the horizontal baffle to pass through and drip into the bottom oil pool, and the vertical baffle is arranged on the upper surface of the horizontal baffle and separates the exhaust hole and the refrigerant outlet in the high-pressure chamber.

[0022] Preferably, an expansion chamber oil drain port is provided at the bottom of the oil expansion chamber, and the expansion chamber oil drain port is connected to the L-shaped oil outlet pipeline.

[0023] An embodiment of the present utility model further provides a new energy vehicle, comprising the above-mentioned horizontal compressor.

[0024] The horizontal compressor and new energy vehicle of the utility model can effectively prevent high-speed flowing lubricating oil from directly impacting the bottom oil pool, avoid causing an unstable oil surface, and improve separation efficiency and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings.

[0026] Figure 1 It is a stereoscopic diagram of the horizontal compressor of the present invention with the front shell removed.

[0027] Figure 2 It is a side view of the horizontal compressor of the present invention with the front shell removed.

[0028] Figure 3 It is a three-dimensional diagram of the oil-gas separation cover in the horizontal compressor of the utility model.

[0029] Figure 4 It is a side view of the oil-gas separation cover in the horizontal compressor of the utility model.

[0030] Figure 5 yes Figure 4 Cross-sectional view along the AA axis.

[0031] Figure 6 It is a schematic diagram of the oil-gas separation cover in the horizontal compressor of the present invention facing the static scroll.

[0032] Figure 7 yes Figure 6 A magnified view of a local area.

[0033] Figure 8 yes Figure 6 Cross-sectional view along the BB direction.

[0034] Figure 9 yes Figure 6 Cross-sectional view along CC direction.

[0035] Figure 10 It is a bottom view of the oil-gas separation cover in the horizontal compressor of the utility model.

[0036] Reference numerals

[0037] 1 Shell

[0038] 2 Back cover

[0039] 3 Oil and gas separation cover

[0040] 30 Oil-gas separation chamber

[0041] 31 rectifier channels

[0042] 32 Refrigerant outlet

[0043] 33 horizontal baffle

[0044] 34 vertical baffles

[0045] 35 core rod

[0046] 351 First Separation Chamber

[0047] 352 Second separation chamber

[0048] 36 Inverted L oil outlet pipeline

[0049] 361 First oil outlet

[0050] 362 oil drain port

[0051] 363 separation chamber bottom plate

[0052] 364 pipeline oil outlet

[0053] 365 inclined oil circuit

[0054] 366 Arc guide

[0055] 367 Second oil outlet

[0056] 4 motors

[0057] 5 static vortex disk

[0058] 51 exhaust vent

[0059] 52 Oil return port

[0060] 53 valve plate

[0061] 54 Oil expansion chamber DETAILED DESCRIPTION

[0062] The following describes the embodiments of the present application through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present application from the content disclosed in the present application. The present application can also be implemented or applied through different specific embodiments. The details in the present application can also be modified or changed according to different viewpoints and application systems without departing from the spirit of the present application. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other unless they conflict.

[0063] The following is a detailed description of the embodiments of the present application with reference to the accompanying drawings so that those skilled in the art can easily implement the present application. The present application can be embodied in many different forms and is not limited to the embodiments described herein.

[0064] In the description of this application, reference to the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and integrate different embodiments or examples described in this application, as well as features of different embodiments or examples, unless otherwise contradictory.

[0065] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include at least one such feature. In the context of this application, "plurality" means two or more, unless otherwise specifically defined.

[0066] In order to clearly describe the present application, components not related to the description are omitted, and the same or similar components throughout the specification are given the same reference numerals.

[0067] Throughout this specification, when a device is said to be "connected" to another device, this includes not only "direct connection" but also "indirect connection" with other elements interposed therebetween. Furthermore, when a device is said to "include" a certain component, unless otherwise stated, this does not exclude the inclusion of other components but rather implies that the device may include other components.

[0068] When a device is said to be "on" another device, it may be directly on the other device, but there may also be other devices between it. In contrast, when a device is said to be "directly on" another device, there are no other devices between it.

[0069] Although the terms first, second, etc. are used in some instances herein to represent various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, the first interface and the second interface, etc. are represented. Furthermore, as used in this article, the singular forms "one," "an," and "the" are intended to also include the plural forms, unless there is a contrary indication in the context. It should be further understood that the terms "comprise," "include," and "include" indicate the presence of features, steps, operations, elements, components, items, types, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, types, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B, or C" or "A, B, and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B, and C." Exceptions to this definition only occur when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0070] The technical terms used herein are intended only to refer to specific embodiments and are not intended to limit this application. The singular form used herein also includes the plural form unless the statement explicitly indicates otherwise. The term "comprising" as used in this specification is intended to specify specific features, regions, integers, steps, operations, elements, and / or components and does not exclude the presence or addition of other features, regions, integers, steps, operations, elements, and / or components.

[0071] Although not defined differently, all terms used herein, including technical and scientific terms, have the same meanings as those generally understood by those skilled in the art to which this application belongs. Terms defined in commonly used dictionaries are to be interpreted as having meanings consistent with the relevant technical literature and current teachings, and unless otherwise defined, they should not be overly interpreted as ideal or highly formalized meanings.

[0072] Figure 1 It is a stereoscopic diagram of the horizontal compressor of the present invention with the front shell removed. Figure 2 It is a side view of the horizontal compressor of the present invention with the front shell removed. Figure 3 It is a three-dimensional diagram of the oil-gas separation cover in the horizontal compressor of the utility model. Figure 4 It is a side view of the oil-gas separation cover in the horizontal compressor of the utility model. Figure 5 yes Figure 4 Cross-sectional view along the AA axis. Figure 6 It is a schematic diagram of the oil-gas separation cover in the horizontal compressor of the present invention facing the static scroll. Figure 7 yes Figure 6 A magnified view of a local area. Figure 8 yes Figure 6 Cross-sectional view along the BB direction. Figure 9 yes Figure 6 Cross-sectional view along CC direction. Figure 10 This is a bottom view of the oil-gas separation cover in the horizontal compressor of the utility model. Figures 1 to 10 As shown, the horizontal compressor of the present invention comprises: a middle shell 1 and a rear shell 2, which together form a cavity for accommodating a motor 4, an orbiting scroll, and a stationary scroll 5, and an oil-gas separation cover 3. An exhaust hole 51 and an oil return port 52 are provided on a first side of the stationary scroll 5 facing away from the cavity. The oil-gas separation cover 3 is covered by the front shell and connected to the first side of the static vortex 5. The oil-gas separation cover 3 includes an oil-gas separation chamber 30 with a core rod 35 inside. The oil-gas separation cover 3 and the static vortex 5 together form an oil expansion chamber 54 connected to the exhaust hole 51. The side of the oil-gas separation chamber 30 is connected to the oil expansion chamber 54 through at least one rectifying channel 31. The bottom of the oil-gas separation chamber 30 is provided with at least one first oil outlet 361 to connect to an inverted L oil outlet pipeline 36. The upper end of the inverted L oil outlet pipeline 36 is provided with a second oil outlet 367. The refrigeration lubricating oil flowing into the inverted L oil outlet pipeline 36 from the oil-gas separation chamber 30 overflows from the second oil outlet 367 after at least flowing in the anti-gravity direction.

[0073] In a preferred embodiment, the cross-section of the rectifying channel 31 is circular or waist-shaped, but not limited thereto. Furthermore, the number of rectifying channels 31 is ≥ 2, and the rectifying channels 31 are arranged vertically in an up-and-down direction, and extend parallel to each other, but not limited thereto.

[0074] In a preferred embodiment, a first distance between the first oil outlet 361 and the oil pool liquid surface is smaller than a second distance between the second oil outlet 367 and the oil pool liquid surface, but the present invention is not limited thereto.

[0075] In a preferred embodiment, the L-shaped oil outlet line 36 comprises a horizontal oil channel and an oblique oil channel 365 extending upward along the outer wall of the oil-gas separation chamber 30. The horizontal oil channel connects to the bottom of the oblique oil channel 365 and is located at the bottom of the oil-gas separation chamber 30. The outer sidewall of the oil-gas separation chamber 30 at least partially forms the wall of the oblique oil channel 365, but the embodiment is not limited thereto. The L-shaped oil outlet line 36 not only serves as an oil outlet channel but also serves to block bubbles generated during the oil separation process, preventing them from flowing downward and affecting the stable oil pool within the front housing.

[0076] In a preferred embodiment, the bottom of the oil-gas separation chamber 30 forms a separation chamber bottom plate 363, and the first oil outlet 361 provided on the separation chamber bottom plate 363 is connected to the top of the first end of the horizontal oil circuit away from the oblique oil circuit 365, but the present invention is not limited thereto.

[0077] In a preferred embodiment, an arc guide portion 366 is further provided inside the horizontal oil circuit. The arc guide portion 366 is located at the lower part of the first oil outlet 361 and guides the oil to the second end of the horizontal oil circuit. A pipeline oil drain port 364 is also provided at the bottom of the second end of the horizontal oil circuit, which is connected to the bottom oil pool, but is not limited to this.

[0078] In a preferred embodiment, a high-pressure chamber is formed between the front shell and the static vortex 5, and the high-pressure chamber is provided with an exhaust port connected to the outside. The top of the oil-gas separation chamber 30 is provided with a refrigerant outlet 32 ​​connected to the high-pressure chamber, but not limited to this.

[0079] In a preferred embodiment, a first tubular separation chamber 351 is formed between the outer wall of the core rod 35 and the inner wall of the oil-gas separation chamber 30. The oil-gas separation cover 3 is provided with a protruding oblique boss on the side facing the static vortex 5. The bottom of the first separation chamber 351 is gathered inward to form a funnel structure. The inner wall of the core rod 35 is surrounded to form a second separation chamber 352. The second separation chamber 352 is a rod-shaped separation chamber. A rectifying channel 31 connecting the oil expansion chamber 54 and the first separation chamber 351 is provided inside the oblique boss. The extension direction of the rectifying channel 31 is tangent to the annular flow channel where the first separation chamber 351 is located. The first projection of the first separation chamber 351 based on the horizontal plane and the second projection of the rectifying channel 31 based on the horizontal plane do not overlap with each other, but are not limited to this.

[0080] In a preferred embodiment, the oil-gas separation cover 3 also includes a horizontal baffle 33 and a vertical baffle 34. The horizontal baffle 33 covers the bottom oil pool and is distributed with a plurality of through holes 331. The edge of the horizontal baffle 33 is also provided with a plurality of notches 332. The notches 332 and the inner wall of the front shell form a flow channel for the refrigeration lubricating oil after the oil and gas separation on the upper part of the horizontal baffle 33 to pass through and drip into the bottom oil pool. The vertical baffle 34 is arranged on the upper surface of the horizontal baffle 33 and separates the exhaust hole and the refrigerant outlet 32 ​​in the high-pressure chamber, but is not limited to this.

[0081] In a preferred embodiment, an expansion chamber oil drain port 362 is provided at the bottom of the oil expansion chamber 54, and the expansion chamber oil drain port 362 is connected to the inverted L oil outlet pipeline 36. Its purpose is to prevent oil from accumulating in the inverted L oil outlet pipeline 36, thereby avoiding the occurrence of poor oil flow, but not limited to this.

[0082] The following is in conjunction with the instructions Figures 1 to 10 To introduce the specific implementation of the horizontal compressor of the utility model:

[0083] Continue to refer Figures 1 to 10(In order to clearly see the oil-gas separation cover 3 inside the compressor, the front shell is omitted in the drawing). The utility model provides a horizontal scroll compressor, wherein the middle shell 1 and the rear shell 2 together form a cavity for accommodating the motor 4, the movable scroll, the static scroll 5, and the oil-gas separation cover 3. The first side of the static scroll 5 facing away from the cavity is provided with an exhaust hole 51 and an oil return port 52. The oil-gas separation cover 3 is covered by the front shell and connected to the first side of the static scroll 5. The oil-gas separation cover 3 includes an oil-gas separation chamber 30 with a core rod 35 therein. The oil-gas separation cover 3 and the static scroll 5 together form an oil expansion chamber 54 connected to the exhaust hole 51. The oil-gas separation chamber 30 is connected to the oil expansion chamber 54 laterally through at least one rectifying channel 31. The bottom of the oil-gas separation chamber 30 is provided with at least one first oil outlet 361 to connect to an inverted L-shaped oil outlet pipeline 36. The upper end of the inverted L-shaped oil outlet pipeline 36 is provided with a second oil outlet 367. The first distance between the first oil outlet 361 and the oil pool surface is less than the second distance between the second oil outlet 367 and the oil pool surface. The refrigerant lubricating oil flowing from the oil-gas separation chamber 30 into the L-shaped oil outlet pipeline 36 flows at least in the direction counter to gravity before overflowing from the second oil outlet 367. The L-shaped oil outlet pipeline 36 comprises a horizontal oil passage and an inclined oil passage 365 extending upward along the outer wall of the oil-gas separation chamber 30. The horizontal oil passage connects to the bottom of the inclined oil passage 365 and is located at the bottom of the oil-gas separation chamber 30. The exterior of the sidewall of the oil-gas separation chamber 30 at least partially forms the wall of the inclined oil passage 365. The bottom of the oil-gas separation chamber 30 forms the separation chamber bottom plate 363. The first oil outlet 361, located on the separation chamber bottom plate 363, connects to the top of the first end of the horizontal oil passage, facing away from the inclined oil passage 365. The horizontal oil circuit also features an arc-shaped guide 366, located below the first oil outlet 361 and directing oil toward the second end of the circuit. A pipeline drain port 364 is also located at the bottom of the second end, connecting it to the oil sump. A high-pressure chamber is formed between the front housing and the stationary scroll 5. This chamber has an exhaust port connected to the outside. A refrigerant outlet 32, connecting to the high-pressure chamber, is located at the top of the oil-gas separation chamber 30. A first tubular separation chamber 351 is formed between the outer wall of the core rod 35 and the inner wall of the oil-gas separation chamber 30. The oil-gas separation cover 3 is provided with a protruding oblique boss on the side facing the static vortex 5. The bottom of the first separation chamber 351 is gathered inward to form a funnel structure. The inner wall of the core rod 35 is surrounded to form a second separation chamber 352. The second separation chamber 352 is a rod-shaped separation chamber. A rectifying channel 31 connecting the oil expansion chamber 54 and the first separation chamber 351 is provided inside the oblique boss. The extension direction of the rectifying channel 31 is tangent to the annular flow channel where the first separation chamber 351 is located. The first projection of the first separation chamber 351 based on the horizontal plane and the second projection of the rectifying channel 31 based on the horizontal plane do not overlap with each other.The oil-gas separation cover 3 also includes a horizontal baffle 33 and a vertical baffle 34. The horizontal baffle 33 covers the bottom oil pool and is distributed with a number of through-holes 331. The edge of the horizontal baffle 33 is also provided with a number of notches 332. The notches 332 and the inner wall of the front shell form a flow channel for the refrigerant lubricating oil after oil and gas separation on the upper portion of the horizontal baffle 33 to pass through and drip into the bottom oil pool. The vertical baffle 34 is arranged on the upper surface of the horizontal baffle 33 and separates the exhaust port from the refrigerant outlet 32 ​​within the high-pressure chamber. An expansion chamber oil drain port 362 is provided at the bottom of the oil separation expansion chamber 54. The expansion chamber oil drain port 362 is connected to the inverted L-shaped oil outlet line 36 to prevent oil accumulation in the inverted L-shaped oil outlet line 36, thereby avoiding oil flow problems.

[0084] During operation of the system of the present invention, the compressed, high-temperature, high-pressure oil-gas mixture is discharged from the exhaust port 51 of the fixed scroll 5 and then enters the oil expansion chamber 54 enclosed by the oil-gas separation cover 3 and the fixed scroll 5. Here, a small portion of the oil-gas mixture escapes through a small opening below the oil expansion chamber 54, while the remaining oil-gas mixture is directed into three inclined rectification channels 31 for rectification before entering the oil-gas separation chamber 30 for oil-gas separation.

[0085] As the oil-gas mixture rotates at high speed around the core rod 35, the dense refrigerant oil, influenced by gravity, flows downward along the sidewalls of the first and second separation chambers 351, 352, and flows rapidly into the horizontal oil path of the L-shaped oil outlet pipe 36 through the first oil outlet 361 at the bottom of the oil-gas separation chamber 30. The accumulated refrigerant oil rises in the horizontal oil path, filling the inclined oil path 365 and overflowing from the L-shaped oil outlet pipe 36 through the second oil outlet 367, dripping into the bottom oil sump. A small buffer oil pool is formed in the L-shaped oil outlet pipe 36 to cushion the impact of high-speed lubricant on the bottom oil sump. Even if a significant impact is caused on the small buffer oil pool in the L-shaped oil outlet pipe 36, only a small amount of refrigerant oil will overflow from the second oil outlet 367. During this process, the L-shaped oil outlet pipe 36 effectively prevents the high-speed refrigerant oil from directly impacting the bottom oil sump, preventing oil level instability and improving separation efficiency and stability. The bottom oil sump of the compressor is connected to the oil return port 52. The oil is then drawn into the low-pressure side through the oil return port by the pressure differential. Furthermore, an expansion chamber drain port 362 is provided at the bottom of the oil expansion chamber 54. This drain port 362 communicates with the L-shaped oil outlet line 36, effectively preventing oil from accumulating in the L-shaped oil outlet line 36 and thus preventing oil flow problems.

[0086] Since the density of the gaseous refrigerant is lower than that of the refrigerant oil, it flows in the opposite direction to the refrigerant oil. After lifting the valve plate 53, the gaseous refrigerant rotates and separates along the first separation chamber 351, then flows downward over the end of the core rod 35, upward into the second separation chamber 352, and then into the high-pressure chamber. Ultimately, it is above the refrigerant oil level and flows out of the compressor (discharged through the exhaust port). However, during this process, a small amount of refrigerant oil will still be carried out of the core rod by the gaseous refrigerant, similarly through the openings in the horizontal baffle, and eventually flow into the refrigerant oil area.

[0087] During operation, the compressor of the present invention displays a clearly discernible oil level, regardless of whether it is operating at high or low speeds, or at high or low oil circulation rates. Compared to previous oil separation structures, the current structure exhibits significantly reduced oil level fluctuations. Specifically, the oil distribution and flow conditions within the compressor are effectively optimized under different combinations of speeds and oil circulation rates. At high speeds, despite the accelerated flow and more complex interactions of the oil-air mixture, the new structural design ensures a relatively stable and clearly measurable oil level. At low speeds, where the oil flow is relatively smooth, the new structure also effectively suppresses potential oil level fluctuations. Across different oil circulation rates, whether rapidly circulating large quantities of oil at high circulation rates or relatively slow flowing oil at low circulation rates, the compressor maintains a clear oil level display with minimal fluctuations. This stable oil level provides strong support for accurate oil quantity monitoring and effective oil return control. Excellent oil level stability directly contributes to excellent oil return performance. The new structure precisely guides oil back to the designated location, reducing oil retention and loss in the system. The optimized oil return path and improved oil return efficiency significantly enhance the lubrication inside the compressor, effectively reducing wear and friction between components, thereby improving the overall performance and reliability of the compressor.

[0088] The present invention also provides a new energy vehicle utilizing the aforementioned horizontal compressor. The remaining relevant technical features and effects are as previously described and will not be elaborated upon here. This invention contributes to improving the overall NVH (Noise, Vibration, and Harshness) of new energy vehicles. This is a comprehensive measure of vehicle manufacturing quality that is most directly and superficially perceived by vehicle users.

[0089] In summary, the horizontal compressor and new energy vehicle of the present invention can effectively prevent high-speed flowing lubricating oil from directly impacting the bottom oil pool, avoid causing an unstable oil surface, and improve separation efficiency and stability.

[0090] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A horizontal compressor, characterized in that: include: The middle shell (1) and the rear shell (2) together form a cavity for accommodating the motor (4), the movable scroll, and the stationary scroll (5); the stationary scroll (5) is provided with an exhaust hole (51) and an oil return port (52) on a first side facing away from the cavity; An oil-gas separation cover (3) is covered by a front shell and connected to a first side of the static vortex (5), the oil-gas separation cover (3) includes an oil-gas separation chamber (30) with a core rod (35) therein, the oil-gas separation cover (3) and the static vortex (5) together form an oil expansion chamber (54) connected to the exhaust hole (51), the oil-gas separation chamber (30) is connected to the oil expansion chamber (54) via at least one rectifier channel (31) on the side, the oil-gas separation chamber (30) is provided with at least one first oil outlet (361) at the bottom to connect to an L-shaped oil outlet pipeline (36), the upper end of the L-shaped oil outlet pipeline (36) is provided with a second oil outlet (367), and the lubricating oil flowing from the oil-gas separation chamber (30) into the L-shaped oil outlet pipeline (36) overflows from the second oil outlet (367) after flowing in the direction of at least anti-gravity.

2. The horizontal compressor according to claim 1, wherein A first distance between the first oil outlet (361) and the oil pool liquid surface is smaller than a second distance between the second oil outlet (367) and the oil pool liquid surface.

3. The horizontal compressor according to claim 2, characterized in that The inverted L-shaped oil outlet pipeline (36) includes a horizontal oil circuit and an oblique oil circuit (365) extending upward along the outer wall of the oil-gas separation chamber (30). The horizontal oil circuit is connected to the bottom of the oblique oil circuit (365). The horizontal oil circuit is located at the lower part of the oil-gas separation chamber (30). The outer part of the side wall of the oil-gas separation chamber (30) at least partially forms the pipe wall of the oblique oil circuit (365).

4. The horizontal compressor according to claim 3, characterized in that The bottom of the oil-gas separation chamber (30) forms a separation chamber bottom plate (363), and the first oil outlet (361) of the separation chamber bottom plate (363) is arranged at the top of the first end of the horizontal oil circuit facing away from the oblique oil circuit (365) and connected to the horizontal oil circuit.

5. The horizontal compressor according to claim 4, characterized in that A circular arc guide portion (366) is further provided inside the horizontal oil circuit. The circular arc guide portion (366) is located below the first oil outlet (361) and guides oil toward the second end of the horizontal oil circuit. A pipeline oil drain port (364) is further provided at the bottom of the second end of the horizontal oil circuit and communicates with the bottom oil pool.

6. The horizontal compressor according to claim 1, wherein: A high-pressure chamber is formed between the front shell and the static vortex (5), and the high-pressure chamber is provided with an exhaust port connected to the outside. The top of the oil-gas separation chamber (30) is provided with a refrigerant outlet (32) connected to the high-pressure chamber.

7. The horizontal compressor according to claim 6, characterized in that A first tubular separation chamber (351) is formed between the outer wall of the core rod (35) and the inner wall of the oil-gas separation chamber (30); the oil-gas separation cover (3) is provided with a protruding oblique boss on the side facing the static vortex (5); the bottom of the first separation chamber (351) is gathered inward to form a funnel structure; the inner wall of the core rod (35) is surrounded to form a second separation chamber (352); the second separation chamber (352) is a rod-shaped separation chamber; a rectifying channel (31) is provided inside the oblique boss to connect the oil expansion chamber (54) and the first separation chamber (351); the extending direction of the rectifying channel (31) is tangent to the annular flow channel where the first separation chamber (351) is located; the first projection of the first separation chamber (351) based on the horizontal plane and the second projection of the rectifying channel (31) based on the horizontal plane do not overlap each other.

8. The horizontal compressor according to claim 6, wherein: The oil-gas separation cover (3) further includes a horizontal baffle (33) and a vertical baffle (34), wherein the horizontal baffle (33) covers the bottom oil pool and is distributed with a plurality of through holes (331), and the edge of the horizontal baffle (33) is also provided with a plurality of notches (332), wherein the notches (332) and the inner wall of the front shell form a flow channel for the lubricating oil after the oil-gas separation on the upper part of the horizontal baffle (33) to pass through and drip into the bottom oil pool, and the vertical baffle (34) is arranged on the upper surface of the horizontal baffle (33) and separates the exhaust hole and the refrigerant outlet (32) in the high-pressure chamber.

9. The horizontal compressor according to claim 6, wherein: An expansion chamber oil drain port (362) is provided at the bottom of the oil expansion chamber (54), and the expansion chamber oil drain port (362) is connected to the L-shaped oil outlet pipeline (36).

10. A new energy vehicle, characterized in that: It comprises the horizontal compressor as claimed in claim 1.

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