A horizontal compressor

Abstract

This invention provides a horizontal compressor, including a compressor housing, a compressor body disposed inside the compressor housing, and an exhaust pipe disposed at the top of the compressor housing. The exhaust pipe has a vertical section, a curved section, and a horizontal section, wherein the vertical section passes through the compressor housing, and a collecting device is provided at the connection between the curved section and the vertical section. The collecting device includes a guide pipe, a collecting housing, a collecting cavity, and an oil drain pipe. The higher end of the guide pipe connects to the curved section of the exhaust pipe, and the lower end passes through the interior of the collecting housing. The collecting cavity is movably installed inside the collecting housing, located directly below the lower end of the guide pipe. An oil drain pipe is installed at the bottom of the collecting cavity, and the lower end of the oil drain pipe is directly opposite a drain port opened on the bottom surface of the collecting housing. The drain port is connected to the compressor housing through the drain pipe, and the drain port is elastically closed by an elastic sealing plate with an elastic opening. This invention can improve the oil adhesion of the exhaust pipe, avoid the reduction of exhaust volume, and reduce the oil content of the exhaust.

Description

Technical Field

[0001] This invention relates to the field of vehicle-mounted compressor technology, and in particular to a horizontal compressor. Background Technology

[0002] For new energy vehicles, vertical compressors are not suitable due to space constraints. Therefore, to adapt to the space requirements of new energy vehicles, the compressor structure has been changed from vertical to horizontal. The horizontal structure significantly impacts the lubrication and airflow of the compressor pump. Therefore, to facilitate refrigerant discharge from the exhaust pipe, improvements were made to the exhaust pipe and oil baffle structure to reduce oil carryover during discharge, preventing oil shortages that could affect the compressor's lifespan and operational stability. Based on this, addressing the shortcomings of existing straight-pipe exhaust pipes, the horizontal compressor features a multi-section structure with bends in the exhaust pipe. However, when refrigerant enters the exhaust pipe, the bends guide the flow, changing its direction. This also causes the refrigerant oil to separate from the refrigerant due to impacts with the bends, adhering to the exhaust pipe walls and flowing into the compressor's oil chamber. This can affect the discharge volume to some extent, leading to instability in downstream refrigeration equipment, and requires further improvement. Summary of the Invention

[0003] In view of the above, it is necessary to provide a horizontal compressor to improve the oil adhesion of the exhaust pipe, avoid the reduction of exhaust volume, and at the same time reduce the oil content of the exhaust.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A horizontal compressor includes a compressor housing, a compressor body disposed inside the compressor housing, and an exhaust pipe disposed on the top of the compressor housing. The exhaust pipe has a vertical section, a curved section, and a horizontal section, wherein the vertical section passes through the compressor housing, and a collecting device is provided at the connection between the curved section and the vertical section. The collecting device includes a guide pipe, a collecting housing, a collecting cavity, and an oil drain pipe. The guide pipe is inclined, with its higher end connected to the curved section of the exhaust pipe and its lower end passing through the interior of the collecting housing. The collecting housing is located outside the exhaust pipe, and the collecting cavity is movably installed within it. The top of the collecting cavity is open and located directly below the lower end of the guide pipe. An oil drain pipe is installed at the bottom of the collecting cavity, and the lower end of the oil drain pipe is directly opposite a drain port opened on the bottom surface of the collecting housing. The drain port is connected to the compressor housing through the drain pipe and is connected to the oil storage chamber of the compressor housing. The drain port is elastically closed by an elastic sealing sheet with an elastic opening. A return spring is installed inside the collection housing, and the collection cavity is movably installed inside the collection housing via the return spring. When the collected amount in the collection cavity is lower than the preset oil level or there is no collected amount, the lower end of the oil drain pipe abuts against the elastic sealing sheet under the action of the return spring. When the collected amount in the collection cavity is greater than the preset oil level, the lower end of the oil drain pipe passes through the elastic opening and communicates with the drain pipe. A noise reduction sleeve is fitted on the outside of the compressor housing, and the noise reduction sleeve has a movable opening. The drain pipe passes through the noise reduction sleeve through the movable opening. A noise reduction cylinder is provided at the movable opening, and the noise reduction cylinder is framed outside the movable opening. One end of the cylinder is connected to the noise reduction sleeve, and the other end is connected to the bottom of the collection housing. The bottom of the collection housing has an upwardly concave arc surface structure, and the inner wall of the noise reduction cylinder also has an arc surface structure.

[0006] Preferably, the exhaust pipe has an oil guide port on the side with a larger bending radius in the bend section, and the guide pipe is connected to the exhaust pipe through the oil guide port.

[0007] Preferably, the collection chamber and the guide tube are spaced apart.

[0008] Preferably, the reset springs are evenly distributed around the circumference of the collecting cavity, and the outside of the collecting cavity is provided with a hook, through which the reset springs are connected.

[0009] Preferably, the lower end of the oil drain pipe has a conical or hemispherical structure.

[0010] Preferably, the top surface of the collecting housing has a collecting housing cover.

[0011] Preferably, the noise reduction sleeve is spaced apart from the compressor housing, and the noise reduction sleeve has a plurality of sound-absorbing ports spaced apart in the circumferential direction. Each sound-absorbing port is connected to a sound-absorbing cylinder, and the sound-absorbing cylinder is disposed on the outer side of the noise reduction sleeve and has a bottom.

[0012] Preferably, the sound-absorbing cylinder is made of sound-absorbing material and has an arc-shaped inner surface.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention uses a collection device to collect the refrigerant oil blocked by the bend in the exhaust pipe, preventing the refrigerant oil from flowing back from the end of the exhaust pipe that flows into the compressor body into the compressor oil chamber after it adheres to the wall. This reduces the possibility of reduced exhaust volume due to backflow, and the blocked refrigerant oil can be collected and returned to the compressor oil chamber.

[0015] Specifically, the collection device of the present invention discharges the cold oil hanging on the wall of the exhaust pipe bend through the guide pipe and guides it to the collection chamber of the collection housing. The oil drain pipe at the bottom of the collection chamber is sealed by the elastic sealing plate at the bottom of the collection housing. When the amount collected in the collection chamber is small, its weight cannot overcome the elastic force of the return spring and the elastic sealing plate, so the oil drain pipe is sealed and the refrigerant oil in the collection chamber cannot be discharged. When the amount collected in the collection chamber is too heavy, causing the oil drain pipe to overcome the elastic force of the elastic sealing plate and the return spring, the lower part of the oil drain pipe passes through the elastic opening on the elastic sealing plate and the elastic sealing plate. The oil drain pipe is connected to the compressor oil chamber through the drain pipe. The refrigerant oil in the collection chamber flows back to the compressor oil chamber through the oil drain pipe and the drain pipe, realizing the recovery of refrigerant oil and reducing compressor oil loss.

[0016] In summary, the compressor of the present invention, through the setting of the collection device, can achieve oil recovery while stabilizing the discharge volume, thereby providing the compressor with operational stability and service life. Attached Figure Description

[0017] Figure 1 This is a simplified structural diagram of the present invention.

[0018] Figure 2 yes Figure 1 The enlarged view at point A shows the oil drain pipe sealed by an elastic sealing plate.

[0019] Figure 3 yes Figure 1 The enlarged view at point A in the image shows an elastic sealing plate inserted through the oil drain pipe.

[0020] Explanation of main component symbols

[0021] In the diagram: 1. Compressor housing; 2. Compressor body; 3. Exhaust pipe; 3.1. Oil guide port; 4. Collection device; 4.1. Guide pipe; 4.2. Collection housing; 4.3. Collection chamber; 4.4. Oil drain pipe; 4.5. Elastic sealing sheet; 4.6. Return spring; 4.7. Drain pipe; 5. Noise reduction sleeve; 5.1. Sound absorption port; 6. Sound absorption cylinder; 7. Noise reduction cylinder.

[0022] The following detailed description, in conjunction with the accompanying drawings, will further illustrate the present invention. Detailed Implementation

[0023] Please see Figures 1 to 3 In a preferred embodiment of the present invention, a horizontal compressor includes a compressor housing 1, a compressor body 2 disposed inside the compressor housing 1, and an exhaust pipe 3 disposed on the top of the compressor housing 1. The exhaust pipe 3 has a vertical section, a curved section, and a horizontal section. The horizontal section is parallel to the length direction of the compressor housing 1. The horizontal section is connected to the vertical section through the curved section. The vertical section passes through the compressor housing 1. A collecting device 4 is provided at the connection between the curved section and the vertical section. The collecting device 4 includes a guide pipe 4.1, a collecting housing 4.2, a collecting cavity 4.3, and an oil drain pipe 4.4. The guide pipe 4.1 is inclined, with its higher end connected to the curved section of the exhaust pipe 3 and its lower end passing through the interior of the collecting housing 4.2. The collecting housing 4.2 is located outside the exhaust pipe 3, and the collecting cavity 4.3 is movably installed inside it. The top of the collecting cavity 4.3 is open and located directly below the lower end of the guide pipe 4.1. An oil drain pipe 4.4 is installed at the bottom of the cavity 4.3. The lower end of the oil drain pipe 4.4 is directly opposite the drain port opened on the bottom surface of the collecting housing 4.2. The drain port is connected to the compressor housing 1 through the drain pipe 4.7 and is connected to the oil storage chamber of the compressor housing 1. The drain port is elastically closed by an elastic sealing plate 4.5. The elastic sealing plate 4.5 has an elastic opening. The elastic opening is in a sealed state in the natural state of the elastic sealing plate 4.5. A return spring 4.6 is installed inside the collecting housing 4.2. The collecting cavity 4.3 is movably installed inside the collecting housing 4.2 by the return spring 4.6. When the collected amount in the collecting cavity 4.3 is lower than the preset oil amount or there is no collected amount, the lower end of the oil drain pipe 4.4 abuts against the elastic sealing plate 4.5 under the action of the return spring 4.6. When the collected amount in the collecting cavity 4.3 is greater than the preset oil amount, the lower end of the oil drain pipe 4.4 passes through the elastic opening and is connected to the drain pipe 4.7.

[0024] This invention uses a collection device 4 at the connection between the curved section and the vertical section of the exhaust pipe 3, which has an oil-blocking function, to collect the blocked refrigerant oil in a concentrated manner. This prevents the refrigerant oil hanging on the wall of the curved section of the exhaust pipe 3 from flowing back into the oil storage chamber of the compressor along the pipe wall of the vertical section, thus avoiding a reduction in exhaust volume due to oil discharge from the exhaust pipe 3.

[0025] In this invention, the oil-blocking device guides the refrigerant oil flowing down the wall of the bend section of the exhaust pipe 3 to the collection housing 4.2 via the guide pipe 4.1. For ease of collection, it is preferable to collect the oil through the oil guide port 3.1 opened on the side of the bend section of the exhaust pipe 3 with a larger bending radius. In this way, the guide pipe 4.1 is connected to the exhaust pipe 3 through the oil guide port 3.1. When the refrigerant oil flows down, it will flow into the guide pipe 4.1 through the oil guide port 3.1 and then flow from the guide pipe 4.1 into the collection housing 4.2, and fall into the collection cavity 4.3 in the collection housing 4.2.

[0026] The collection chamber of this invention serves to temporarily store recovered refrigerant oil. It is movably installed within the collection housing 4.2. Its purpose is to, in conjunction with the return spring 4.6, the oil drain pipe 4.4, and the elastic sealing plate 4.5, open the collection housing 4.2 only when a certain amount of refrigerant oil has been collected, thereby centrally discharging the collected refrigerant oil into the compressor's oil storage chamber. When a certain amount has been discharged, the chamber resets. The return spring 4.6 causes the collection chamber to rise, allowing the oil drain pipe 4.4 to rise without passing through the elastic sealing plate 4.5. The elastic sealing plate 4.5, under its own action, closes the elastic opening, thus closing the collection housing 4.2 and simultaneously closing the oil drain pipe 4.4. The collection chamber is also in a closed state, preventing oil discharge and thus preventing refrigerant from entering the collection device 4. Preferably, the collection chamber 4.3 and the guide pipe 4.1 are spaced apart so that the collection chamber can automatically discharge oil after collecting a certain amount, and automatically stop discharging after reaching a certain amount. Furthermore, to ensure uniform force distribution within the collection chamber, the return springs 4.6 are evenly distributed around the circumference of the collection chamber 4.3. The collection chamber 4.3 has external lugs that connect to the return springs 4.6. To facilitate sealing of the drain pipe 4.4 by the elastic sealing sheet 4.5 and to allow the elastic sealing sheet 4.5 to pass through it, preferably, the lower end of the drain pipe 4.4 has a conical or hemispherical structure.

[0027] Furthermore, the top surface of the collection housing 4.2 has a collection housing cover, which can be used to open the collection housing 4.2 for convenient maintenance inside the collection housing 4.2.

[0028] Furthermore, considering the noise generated during compressor operation, this invention provides a noise-reducing sleeve 5 around the compressor housing 1. The noise-reducing sleeve 5 is spaced apart from the compressor housing 1, and a plurality of sound-absorbing ports 5.1 are spaced apart circumferentially on the noise-reducing sleeve 5. Each sound-absorbing port 5.1 communicates with a sound-absorbing cylinder 6, which is located on the outer surface of the noise-reducing sleeve 5 and has a bottom. That is, the noise generated by the compressor body 2 is absorbed into the sound-absorbing cylinder 6 through the sound-absorbing ports 5.1 on the noise-reducing cylinder 6, and then reflected multiple times within the sound-absorbing cylinder 6 to reduce noise, thereby achieving the effect of noise reduction. Preferably, the sound-absorbing cylinder 6 is made of sound-absorbing material, and its inner surface has an arc-shaped structure to achieve multiple reflections for better noise reduction.

[0029] Furthermore, the noise-reducing sleeve 5 has a movable opening, through which the drain pipe 4.7 passes. A noise-reducing cylinder 7 is installed at the movable opening, framed outside the opening. One end of the cylinder 7 is connected to the noise-reducing sleeve 5, and the other end is connected to the bottom of the collecting housing 4.2. This allows the drain pipe 4.7 to be easily connected to the compressor housing 1 via the movable opening, while also providing sound absorption and noise reduction, preventing noise generated by the compressor body 2 from escaping through the opening. Preferably, the bottom of the collecting housing 4.2 has a concave arc surface structure, and the inner wall of the noise-reducing cylinder 7 also has an arc surface structure. This allows the collecting housing 4.2 to reflect and absorb noise, improving the noise reduction effect.

[0030] The above description is a detailed description of the preferred embodiments of the present invention. However, the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modifications made under the technical spirit of the present invention should fall within the patent scope covered by the present invention.

Claims

1. A horizontal compressor, comprising a compressor housing, a compressor body disposed inside the compressor housing, and an exhaust pipe disposed at the top of the compressor housing, the exhaust pipe having a vertical section, a curved section, and a horizontal section, wherein the vertical section passes through the compressor housing, characterized in that: A collection device is provided at the connection between the curved section and the vertical section; the collection device includes a guide pipe, a collection housing, a collection cavity, and an oil drain pipe; the guide pipe is inclined, with its higher end connected to the curved section of the exhaust pipe, and its lower end extending into the interior of the collection housing. The collection housing is located outside the exhaust pipe, and the collection cavity is movably installed inside it. The top of the collection cavity is open and located directly below the lower end of the guide pipe. An oil drain pipe is installed at the bottom of the collection cavity, with its lower end facing a drain port on the bottom surface of the collection housing. The drain port is connected to the compressor housing via the drain pipe and is connected to the oil storage chamber of the compressor housing. The drain port is elastically closed by an elastic sealing plate with an elastic opening; the collection housing contains... A return spring is installed, and the collecting chamber is movably installed inside the collecting housing via the return spring. When the collected amount in the collecting chamber is lower than the preset oil level or there is no collected amount, the lower end of the oil drain pipe abuts against the elastic sealing sheet under the action of the return spring. When the collected amount in the collecting chamber is greater than the preset oil level, the lower end of the oil drain pipe passes through an elastic opening and communicates with the drain pipe. A noise-reducing sleeve is fitted on the outside of the compressor housing, and a movable opening is provided on the noise-reducing sleeve. The drain pipe passes through the noise-reducing sleeve through the movable opening. A noise-reducing cylinder is provided at the movable opening. The noise-reducing cylinder is framed outside the movable opening, with one end connected to the noise-reducing sleeve and the other end connected to the bottom of the collecting housing. The bottom of the collecting housing has an upwardly concave arc surface structure, and the inner wall of the noise-reducing cylinder also has an arc surface structure.

2. A horizontal compressor as described in claim 1, characterized in that: The exhaust pipe has an oil guide port on the side with a larger bending radius in the bend section, and the guide pipe is connected to the exhaust pipe through the oil guide port.

3. A horizontal compressor as described in claim 1, characterized in that: The collection chamber and the guide tube are spaced apart.

4. A horizontal compressor as described in claim 1, characterized in that: The reset springs are evenly distributed around the circumference of the collecting cavity, and the outside of the collecting cavity is provided with a hook, through which the reset springs are connected.

5. A horizontal compressor as described in claim 1, characterized in that: The lower end of the oil drain pipe has a conical or hemispherical structure.

6. A horizontal compressor as described in claim 1, characterized in that: The top surface of the collection housing has a collection housing cover.

7. A horizontal compressor as described in claim 1, characterized in that: The noise reduction sleeve is spaced apart from the compressor housing. The noise reduction sleeve has several sound-absorbing ports spaced apart in the circumferential direction. Each sound-absorbing port is connected to a sound-absorbing cylinder. The sound-absorbing cylinder is located on the outer side of the noise reduction sleeve and has a bottom.

8. A horizontal compressor as described in claim 7, characterized in that: The sound-absorbing cylinder is made of sound-absorbing material and has an arc-shaped inner surface.

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