Horizontal compressor

Abstract

The invention provides a horizontal compressor which comprises a compressor shell, a compressor body arranged in the compressor shell and an exhaust pipe arranged at the top of the shell, the exhaust pipe is provided with a vertical section, a bent pipe section and a horizontal section, the vertical section penetrates through the shell, and a collecting device is arranged at the joint of the bent pipe section and the vertical section; the collecting device comprises a flow guide pipe, a collecting shell, a collecting cavity and an oil discharge pipe; the higher end of the flow guide pipe is communicated with the bent pipe section of the exhaust pipe, the lower end of the flow guide pipe penetrates into the collecting shell, a collecting cavity is movably installed in the collecting shell and located under the lower end of the flow guide pipe, an oil discharging pipe is installed at the bottom of the collecting cavity, and the lower end of the oil discharging pipe directly faces a liquid discharging opening formed in the bottom face of the collecting shell. The liquid outlet is communicated with the compressor shell through a liquid outlet pipe, the liquid outlet is elastically closed by arranging an elastic sealing piece, and an elastic opening is formed in the elastic sealing piece. The oil hanging condition of the exhaust pipe can be improved, reduction of the gas displacement is avoided, and meanwhile the oil content of exhausted gas is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle-mounted compressors, and in particular to a horizontal compressor. Background Art

[0002] For new energy vehicles, due to space issues, vertical compressors are not applicable. Therefore, in order to adapt to the space installation of new energy vehicles, the compressor is changed from the original vertical structure to a horizontal structure. The horizontal structure will have a great impact on the lubrication and airflow of the compressor pump body. Therefore, in order to facilitate the discharge of refrigerant from the exhaust pipe, the compressor has been improved with the exhaust pipe and oil retaining structure to achieve exhaust while reducing the amount of oil brought out, avoiding the compressor from lacking oil and affecting its service life and working stability. Based on this, in response to the defects of the existing straight pipe exhaust pipe, the horizontal compressor sets the exhaust pipe to a multi-section structure with a bend. As we know, when the refrigerant enters the exhaust pipe, the guiding effect of the bend will change the direction of circulation. However, the collision with the bend will also cause the carried refrigeration oil to separate from the refrigerant, hang on the wall of the exhaust pipe, and flow into the compressor oil chamber along the inner wall of the exhaust pipe. This will affect the exhaust volume to a certain extent, resulting in unstable operation of the subsequent refrigeration equipment, which needs to be improved. Summary of the invention

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

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A horizontal compressor comprises a compressor housing, a compressor body arranged inside the compressor housing, and an exhaust pipe arranged on the top of the housing, wherein the exhaust pipe has a vertical section, a curved section and a horizontal section, wherein the vertical section passes through the housing, and a collecting device is arranged at the connection between the curved section and the vertical section; the collecting device comprises a guide pipe, a collecting housing, a collecting cavity, and an oil drain pipe; the guide pipe is arranged obliquely, and its higher end is connected to the curved section of the exhaust pipe, and its lower end passes through the interior of the collecting housing; the collecting housing is located outside the exhaust pipe, and the collecting cavity is movably installed therein, the top of the collecting cavity is open and is located directly below the lower end of the guide pipe, and the bottom of the collecting cavity An oil drain pipe is installed, and the lower end of the oil drain pipe is opposite to the drain port opened on the bottom surface of the collecting shell. The drain port is connected to the compressor shell through the drain pipe, and is connected to the oil storage chamber of the compressor shell. The drain port is elastically closed by setting an elastic sealing sheet, and an elastic opening is opened on the elastic sealing sheet; a return spring is installed in the collecting shell, and the collecting cavity is movably installed in the collecting shell through the return spring; when the collected amount in the collecting cavity is lower than the preset oil amount value or there is no collected amount, under the action of the return spring, the lower end port of the oil drain pipe is against the elastic sealing sheet; when the collected amount in the collecting cavity is greater than the preset oil amount, the lower end port of the oil drain pipe is penetrated by an elastic opening and is connected to the drain pipe.

[0006] Preferably, the exhaust pipe is provided with an oil guide port on a side of the curved pipe section with a larger bending radius, and the flow guide pipe is connected with the exhaust pipe through the oil guide port.

[0007] Preferably, the collecting cavity and the flow guide tube are spaced apart.

[0008] Preferably, the return spring is evenly arranged around the collecting cavity, and a lug is provided outside the collecting cavity, through which the return spring is connected.

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

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

[0011] Preferably, the outer sleeve of the compressor housing is provided with a noise reduction sleeve, the discharge pipe is passed through the noise reduction sleeve, the noise reduction sleeve is spaced apart from the compressor housing, a plurality of sound absorption ports are spaced apart in the circumferential direction of the noise reduction sleeve, each sound absorption port is connected to a sound absorbing tube, the sound absorbing tube is provided on the outer side of the noise reduction sleeve, and has a tube bottom.

[0012] Preferably, the sound-absorbing tube is made of sound-absorbing material, and the inner side surface is a curved structure.

[0013] Preferably, a movable opening is provided on the noise reduction sleeve, and the discharge pipe passes through the movable opening and passes through the noise reduction sleeve; a noise reduction tube is provided at the movable opening, and the noise reduction tube frame is arranged on the outside of the movable opening, one end of which is connected to the noise reduction sleeve, and the other end is connected to the bottom of the collection shell.

[0014] Preferably, the bottom of the collecting shell is a concave curved surface structure, and the inner wall of the noise reduction cylinder is also a curved surface structure.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention provides a collecting device to collect the refrigerant oil blocked by the bent section of the exhaust pipe, thereby preventing the refrigerant oil from adhering to the wall and then flowing back into the compressor oil chamber from one end of the exhaust pipe through the compressor body, thereby reducing the possibility of reduced exhaust volume due to backflow, and the blocked refrigerant oil can be collected and returned to the compressor oil chamber.

[0017] Specifically, the collecting device of the present invention guides the cold oil hanging on the wall at the bend of the exhaust pipe through the guide pipe, and guides it to the collecting cavity of the collecting shell. The bottom oil drain pipe of the collecting cavity is sealed by the elastic sealing plate at the bottom of the collecting shell. When the collection amount in the collecting cavity is small, its gravity cannot overcome the elastic force of the return spring and the elastic sealing plate, the oil drain pipe is sealed, and the refrigerant oil in the collecting cavity cannot be discharged. When the collection amount in the collecting cavity is too heavy and causes 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 is penetrated by the elastic opening on the elastic sealing plate, and the oil drain pipe is connected with the compressor oil chamber through the drain pipe. The refrigerant oil in the collecting cavity flows back to the compressor oil chamber through the oil drain pipe and the drain pipe, so as to realize the recovery of the refrigerant oil and reduce the oil loss of the compressor.

[0018] In summary, the compressor of the present invention can realize oil recovery and stable exhaust volume through the provision of a collection device, thereby improving the stability of the compressor operation and the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention.

[0020] Figure 2 yes Figure 1 The enlarged view of point A in the figure shows that the oil drain pipe is sealed by an elastic sealing sheet.

[0021] Figure 3 yes Figure 1 The enlarged view of point A in the figure shows that an elastic sealing sheet is passed through the oil drain pipe.

[0022] Main component symbols

[0023] In the figure: compressor housing 1, compressor body 2, exhaust pipe 3, oil guide port 3.1, collecting device 4, guide pipe 4.1, collecting housing 4.2, collecting cavity 4.3, oil drain pipe 4.4, elastic sealing sheet 4.5, return spring 4.6, drain pipe 4.7, noise reduction sleeve 5, sound absorption port 5.1, sound absorption tube 6, noise reduction tube 7.

[0024] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0025] See also Figures 1 to 3 In a preferred embodiment of the present invention, a horizontal compressor comprises a compressor casing 1, a compressor body 2 arranged inside the compressor casing 1, and an exhaust pipe 3 arranged on the top of the casing, wherein the exhaust pipe 3 has a vertical section, a curved section and a horizontal section, wherein the horizontal section is arranged parallel to the length direction of the compressor casing 1, the horizontal section is connected to the vertical section through the curved section, the vertical section passes through the casing, and a collecting device 4 is arranged at the connection between the curved section and the vertical section; the collecting device 4 comprises a guide pipe 4.1, a collecting casing 4.2, a collecting cavity 4.3, and an oil drain pipe 4.4; the guide pipe 4.1 is arranged obliquely, and its higher end is connected to the curved section of the exhaust pipe 3, and its lower end passes through the interior of the collecting casing 4.2; the collecting casing 4.2 is located outside the exhaust pipe 3, and the collecting cavity 4.3 is movably installed therein, the top of the collecting cavity 4.3 is open and is located directly below the lower end of the guide pipe 4.1, and the collecting cavity An oil drain pipe 4.4 is installed at the bottom, and the lower end of the oil drain pipe 4.4 is opposite to the drain port opened on the bottom surface of the collecting shell 4.2. The drain port is connected to the compressor shell 1 through the drain pipe 4.7, and is connected to the oil storage chamber of the compressor shell 1. The drain port is elastically closed by arranging an elastic sealing sheet 4.5, and an elastic opening is opened on the elastic sealing sheet 4.5, and the elastic opening is in a closed state when the elastic sealing sheet 4.5 is in a natural state; a return spring 4.6 is installed in the collecting shell 4.2, and the collecting cavity 4.3 is movably installed in the collecting shell 4.2 through the return spring 4.6; when the collected amount in the collecting cavity 4.3 is lower than the preset oil amount value or there is no collected amount, under the action of the return spring 4.6, the lower end port of the oil drain pipe 4.4 is against the elastic sealing sheet 4.5; when the collected amount in the collecting cavity 4.3 is greater than the preset oil amount, the lower end port of the oil drain pipe 4.4 is penetrated by an elastic opening and is connected to the drain pipe 4.7.

[0026] The present invention collects the blocked refrigerating oil in a centralized manner by arranging a collecting device 4 at the connection between the bent section of the exhaust pipe 3 having an oil blocking function and the vertical section, so that the wall-hanging refrigerating oil of the bent section of the exhaust pipe 3 will not flow back to the oil storage chamber of the compressor along the wall of the vertical section, thereby avoiding the situation where the exhaust volume is reduced due to the oil discharge of the exhaust pipe 3.

[0027] In the present invention, the oil blocking device guides the refrigerant oil that flows downward along the wall after being blocked by the bent section of the exhaust pipe 3 to the collecting shell 4.2 through the guide pipe 4.1. In order to facilitate collection, it is preferably collected through the oil guide port 3.1 opened on the side of the bent 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 downward, it will flow into the guide pipe 4.1 through the oil guide port 3.1, and flow from the guide pipe 4.1 to the collecting shell 4.2, and fall into the collecting cavity 4.3 in the collecting shell 4.2.

[0028] The collecting chamber of the present invention has the function of temporarily storing the recovered refrigerant oil. It is movably installed in the collecting shell 4.2. The purpose is to open the collecting shell 4.2 only when a certain amount of refrigerant oil is collected, through the cooperation of the reset spring 4.6, the oil discharge pipe 4.4, and the elastic sealing sheet 4.5, so that the collected refrigerant oil is concentratedly discharged into the oil storage chamber of the compressor. When it is discharged to a certain extent, it is reset. The collecting chamber is lifted up by the reset spring 4.6 so that the oil discharge pipe 4.4 rises without the elastic sealing sheet 4.5. The elastic sealing sheet 4.5 closes the elastic opening under its own action, so that the collecting shell 4.2 is closed and the oil discharge pipe 4.4 is closed at the same time. The collecting chamber is also in a closed state and cannot discharge oil, which can prevent the refrigerant from entering the collecting device 4. Preferably, the collecting chamber 4.3 is spaced apart from the guide pipe 4.1, so that the collecting chamber can automatically discharge oil after collecting a certain amount of refrigerant oil, and automatically stops after the oil discharge reaches a certain amount. Furthermore, in order to facilitate uniform force on the collection chamber, the reset spring 4.6 is evenly arranged around the collection chamber 4.3, and a lug is arranged outside the collection chamber 4.3, through which the reset spring 4.6 is connected. In order to facilitate the oil drain pipe 4.4 to be sealed by the elastic sealing sheet 4.5 and to penetrate the elastic sealing sheet 4.5, preferably, the lower end of the oil drain pipe 4.4 is a conical or hemispherical structure.

[0029] Furthermore, the top surface of the collecting shell 4.2 is provided with a collecting shell cover, so that the collecting shell 4.2 can be opened through the collecting shell cover, so as to facilitate maintenance inside the collecting shell 4.2.

[0030] In addition, considering that the compressor will generate noise during operation, the present invention is provided with a noise reduction sleeve 5 on the outside of the compressor housing 1, the discharge pipe 4.7 is penetrated by the noise reduction sleeve 5, the noise reduction sleeve 5 is spaced apart from the compressor housing 1, and a plurality of sound absorbing ports 5.1 are spaced apart in the circumferential direction of the noise reduction sleeve 5, each sound absorbing port 5.1 is connected to a sound absorbing tube 6, and the sound absorbing tube 6 is provided on the outer side of the noise reduction sleeve 5, and has a tube bottom. That is, the noise generated by the compressor body 2 is absorbed into the sound absorbing tube 6 through the sound absorbing port 5.1 on the noise reduction tube 7, and is reflected multiple times in the sound absorbing tube 6 to reduce noise, thereby achieving the effect of noise reduction. Preferably, the sound absorbing tube 6 is made of sound absorbing material, and the inner side surface is an arc surface structure, so as to achieve multiple reflections and better noise reduction.

[0031] Furthermore, the noise reduction sleeve 5 is provided with an active opening, and the discharge pipe 4.7 passes through the active opening to pass through the noise reduction sleeve 5; a noise reduction tube 7 is provided at the active opening, and the noise reduction tube 7 is framed outside the active opening, one end of which is connected to the noise reduction sleeve 5, and the other end is connected to the bottom of the collection shell 4.2, so that the discharge pipe 4.7 is conveniently connected to the compressor shell 1 through the active opening, and it also has the function of sound absorption and noise reduction, and prevents the noise generated by the compressor body 2 from escaping through the active opening. Preferably, the bottom of the collection shell 4.2 is a concave arc surface structure, and the inner wall of the noise reduction tube 7 is also an arc surface structure, so that the collection shell 4.2 can be used to achieve noise reflection and noise reduction, and improve the noise reduction effect.

[0032] The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modified changes completed under the technical spirit suggested by 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 arranged inside the compressor housing, and an exhaust pipe arranged on the top of the housing, wherein the exhaust pipe has a vertical section, a curved section, and a horizontal section, wherein the vertical section passes through the housing, and is characterized in that: A collecting device is provided at the connection between the curved pipe section and the vertical section; the collecting device includes a guide pipe, a collecting shell, a collecting cavity, and an oil drain pipe; the guide pipe is inclined, and its higher end is connected to the curved pipe section of the exhaust pipe, and its lower end is passed through the interior of the collecting shell; the collecting shell is located outside the exhaust pipe, and the collecting cavity is movably installed therein; the top of the collecting cavity is open and is located directly below the lower end of the guide pipe; an oil drain pipe is installed at the bottom of the collecting chamber, and the lower end of the oil drain pipe is directly opposite to the drain port opened on the bottom surface of the collecting shell, and the drain port is connected to the collecting cavity through the drain pipe. The oil collecting pipe is connected to the compressor housing and is communicated with the oil storage chamber of the compressor housing. The drain port is elastically closed by setting an elastic sealing sheet, and an elastic opening is opened on the elastic sealing sheet. A return spring is installed in the collecting housing, and the collecting chamber is movably installed in the collecting housing through the return spring. When the collected amount in the collecting chamber is lower than the preset oil amount value or there is no collected amount, under the action of the return spring, the lower end port of the oil drain pipe is against the elastic sealing sheet; when the collected amount in the collecting chamber is greater than the preset oil amount, an elastic opening is passed through the lower end port of the oil drain pipe and is communicated with the drain pipe.

2. A horizontal compressor according to claim 1, characterized in that: The exhaust pipe is provided with an oil guide port on the side of the curved pipe section with a larger bending radius, and the flow guide pipe is connected with the exhaust pipe through the oil guide port.

3. A horizontal compressor according to claim 1, characterized in that: The collecting cavity and the flow guide tube are spaced apart.

4. A horizontal compressor according to claim 1, characterized in that: The return springs are evenly arranged around the collecting cavity, and a lug is arranged outside the collecting cavity, through which the return springs are connected.

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

6. A horizontal compressor according to claim 1, characterized in that: The top surface of the collecting shell is provided with a collecting shell cover.

7. A horizontal compressor according to claim 1, characterized in that: The outer sleeve of the compressor housing is provided with a noise reduction sleeve, the discharge pipe passes through the noise reduction sleeve, the noise reduction sleeve is spaced apart from the compressor housing, a plurality of sound absorption ports are spaced apart in the circumferential direction of the noise reduction sleeve, each sound absorption port is connected with a sound absorbing tube, the sound absorbing tube is provided on the outer side of the noise reduction sleeve, and has a tube bottom.

8. A horizontal compressor according to claim 7, characterized in that: The sound-absorbing tube is made of sound-absorbing material, and the inner side surface is a curved structure.

9. A horizontal compressor according to claim 7, characterized in that: The noise reduction sleeve is provided with a movable opening, and the discharge pipe passes through the movable opening and is provided with the noise reduction sleeve; a noise reduction tube is provided at the movable opening, and the noise reduction tube frame is arranged on the outer side of the movable opening, one end of which is connected to the noise reduction sleeve, and the other end is connected to the bottom of the collection shell.

10. A horizontal compressor according to claim 9, characterized in that: The bottom of the collecting shell is a concave arc surface structure, and the inner wall of the noise reduction cylinder is also a arc surface structure.

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