CN212774772U - Top cover of horizontal compressor and horizontal compressor - Google Patents

Abstract

The utility model relates to a horizontal compressor's top cap and horizontal compressor. According to one aspect, a head cover of the horizontal compressor defines a head cover discharge chamber on an inner side of the head cover and is provided with a discharge channel in fluid communication with the head cover discharge chamber for discharging outwardly working fluid discharged from a compression mechanism of the horizontal compressor into the head cover discharge chamber, wherein the head cover is further provided with a suction channel having a first end portion in communication with a bottom portion of the head cover discharge chamber and a second end portion in communication with the discharge channel for fluidly communicating the bottom portion of the head cover discharge chamber with the discharge channel, and accumulated liquid at the bottom portion of the head cover discharge chamber can flow into the discharge channel through the suction channel under a pressure difference to be discharged from the head cover discharge chamber when the horizontal compressor is in operation. According to the utility model discloses, can reduce effectively or eliminate the long-pending oil/hydrops phenomenon of top cap exhaust chamber's bottom.

Description

Top cover of horizontal compressor and horizontal compressor

Technical Field

The utility model relates to a horizontal compressor field especially, relates to horizontal compressor's top cap and water conservancy diversion/flowing back structure thereof.

Background

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

The compressor generally includes a housing, a compression mechanism accommodated in the housing, a driving mechanism including a motor and a rotating shaft driven by the motor to drive the compression mechanism, and the like. During the operation of the compressor, it is generally necessary to supply lubricating oil to relevant moving parts (e.g., a compression mechanism) of the compressor in order to stably operate the compressor. For a vertical compressor in which a rotary shaft is arranged in a vertical manner, an oil sump is generally provided at a bottom wall of a compressor housing, and an oil pumping mechanism is provided at a bottom end of the rotary shaft to pump lubricating oil to the compression mechanism and other related movable parts via an oil supply passage provided in the rotary shaft. However, for the horizontal type compressor, since the rotation shaft is disposed substantially horizontally, it is not possible to conveniently utilize the oil sump naturally formed at the bottom of the compressor as in the vertical type compressor, and therefore it is generally considered to provide an additional oil supply mechanism for supplying lubricating oil to the compression mechanism and other related movable parts of the horizontal type compressor.

In the design of oil supply mechanisms and oil circuit lubrication of horizontal compressors, a plurality of problems need to be solved, such as the need of more cavities as oil pools for storing oil, the problem of oil supply caused by unstable oil level, the problem of oil shortage caused by poor oil return design of the compressor, and the like.

One solution of the related art to the above problem is to use oil mist lubrication, in which the friction pairs inside the compressor are lubricated by oil mist, and a horizontal type compressor using the solution is shown in fig. 1. Fig. 1 is a sectional view of a horizontal type compressor according to the related art. As shown in fig. 1, the casing of the horizontal compressor 10 includes a casing 20 and a top cover 30, a compression mechanism, a driving mechanism, and the like are accommodated in the casing 20, and a sound-deadening partition plate 40 is provided between the casing 20 and the top cover 30. The head cover 30 includes a head cover discharge chamber 301 (specifically, the head cover discharge chamber 301 is defined by the head cover 30 and the silencing partition plate 40), and when the horizontal compressor 10 is in an operating state, refrigerant (carrying lubricating oil for lubricating the horizontal compressor 10) after being compressed by the compression mechanism enters the head cover discharge chamber 301 through a silencing partition plate hole 401 in the silencing partition plate 40 and then is discharged out of the head cover discharge chamber 301 through a discharge pipe 302 due to high pressure in the head cover discharge chamber 301, and the discharge path of the refrigerant is shown by an arrow in fig. 1.

Fig. 2 is a sectional view showing a head cover 30' and its surrounding parts of another horizontal type compressor according to the related art. In this horizontal compressor, no sound-deadening partition is provided, and the head cover 30' is directly attached to the shell and the non-orbiting scroll end plate. The head cover 30 'has a head cover discharge chamber 301' (specifically, a high pressure discharge chamber 301 'defined by the head cover 30' and the non-orbiting scroll end plate) and a discharge port 302 ', and refrigerant entering the head cover discharge chamber 301' from the compression mechanism of the horizontal compressor is discharged out of the head cover discharge chamber 301 'through the discharge port 302' along a path indicated by an arrow.

The flow guide structure of the head cover 30 of the horizontal compressor 10 shown in fig. 1 and the flow guide structure of the head cover 30' of the horizontal compressor shown in fig. 2 have problems that, in the process of discharging the refrigerant out of the head cover of the horizontal compressor, the lubricating oil in the refrigerant settles at the bottom of the head cover exhaust cavity due to gravity, and under certain specific working conditions, there is a case that the liquid refrigerant accumulates at the bottom of the head cover exhaust cavity, and since the refrigerant enters the head cover exhaust cavity at the middle part of the head cover exhaust cavity and the exhaust port is located at the upper part of the head cover exhaust cavity, the discharge path of the refrigerant does not pass through the bottom of the head cover exhaust cavity and cannot take away the accumulated oil/accumulated liquid at the bottom, so that the oil/accumulated liquid phenomenon exists at the bottom of the head cover.

Therefore, there is a need for an improved top cover and flow/liquid guiding structure of a horizontal compressor, so that oil/liquid accumulated at the bottom of the top cover gas discharge chamber can be effectively and timely discharged out of the top cover gas discharge chamber, thereby reducing or eliminating the oil/liquid accumulated at the bottom of the top cover gas discharge chamber.

SUMMERY OF THE UTILITY MODEL

The general outline of the present invention is provided in this section, not a full scope of the present invention or a full disclosure of all the features of the present invention.

The object of the present invention is to solve one or more of the above mentioned technical problems. For example, the technical scheme of the utility model suction channel that can be linked together through the bottom with the exhaust passage in top cap exhaust chamber comes the hydrops discharge top cap exhaust chamber of the bottom in top cap exhaust chamber to reduce or eliminate the hydrops phenomenon of the bottom in top cap exhaust chamber.

In order to solve one or more of the above-mentioned technical problems, according to one aspect of the present invention, there is provided a head cover for a horizontal compressor, the head cover defining a head cover discharge chamber at an inner side of the head cover and being provided with a discharge passage, the discharge passage being in fluid communication with the head cover discharge chamber, for discharging the working fluid discharged from the compression mechanism of the horizontal compressor into the head discharge chamber to the outside, wherein the top cover is also provided with a suction channel which is provided with a first end part and a second end part, the first end part is communicated with the bottom of the top cover exhaust cavity, the second end part is communicated with the exhaust channel, so as to connect the bottom of the top cover exhaust cavity with the exhaust channel, when the horizontal compressor is operated, the accumulated liquid at the bottom of the top cover exhaust cavity can flow into the exhaust channel through the suction channel under the action of pressure difference and is exhausted from the top cover exhaust cavity.

In the head cover of the above horizontal compressor, the suction passage is defined by the suction pipe.

In the head cover of the above horizontal type compressor, the suction pipe is disposed outside the end plate of the head cover, and the bottom of the suction pipe is provided with a bent portion so that the first end of the suction passage extends into the bottom of the head cover discharge chamber through the end plate.

In the head cover of the horizontal compressor, the suction pipe is disposed inside the head cover discharge chamber.

In the head cover of the above horizontal compressor, the discharge passage is defined by a horizontally disposed straight pipe, and the suction pipe extends vertically.

In the head cover of the above horizontal compressor, the discharge passage is defined by a bent pipe and includes an upper section extending horizontally, a lower section extending vertically, and a bent section connecting the upper section and the lower section together, and the suction pipe extends vertically and is provided at the top with a bent portion to form a bent portion at the second end of the suction passage to communicate with the lower section of the discharge passage.

In the head cover of the horizontal compressor described above, the suction channel is provided inside the end plate of the head cover, the first end portion of the suction channel is opened to the bottom of the head cover discharge chamber and the second end portion of the suction channel communicates with the section of the discharge channel inside the end plate.

In order to solve one or more of the above-mentioned technical problems, according to another aspect of the present invention, there is provided a horizontal compressor including the above-mentioned head cover.

In the above horizontal compressor, the horizontal compressor includes a silencing partition plate to which the top cover is attached to define a top cover discharge chamber; or the head cover is directly attached to the non-orbiting scroll end plate of the compression mechanism to define a head cover discharge chamber.

Among the above horizontal compressors, the horizontal compressor is a horizontal scroll compressor employing oil mist lubrication.

The advantages of the discharge channel of the top cover of the horizontal compressor according to the present invention are, for example, as follows. The utility model discloses a horizontal compressor's top cap has the suction passageway that has utilized the Bernoulli principle for under pressure differential's effect, subside the liquid lubricating oil and/or the liquid refrigerant in the bottom in top cap exhaust chamber can discharge the top cap exhaust chamber from the bottom in top cap exhaust chamber with the help of this suction passageway, thereby reduce or eliminate the long-pending oil/hydrops phenomenon of the bottom in top cap exhaust chamber. Furthermore, the utility model discloses a suction channel designs in a flexible way more, can design into the part of additional to the top cap or directly set up the structure inside the top cap according to practical application's needs, consequently has more extensive range of application.

Drawings

The technical features of the related horizontal compressor and its top cover flow guiding structure and one or more embodiments of the top cover of the horizontal compressor and its flow guiding/draining structure of the present invention are shown in the following drawings, in which:

fig. 1 is a sectional view of a horizontal type compressor according to the related art;

fig. 2 is a sectional view of a head cover and its surrounding parts of another horizontal type compressor according to the related art;

fig. 3 is a sectional view of a head cover and its surrounding parts of a horizontal compressor according to a first embodiment of the present invention;

fig. 4 is a sectional view of a head cover and its surrounding parts of a horizontal compressor according to a second embodiment of the present invention;

fig. 5 is a sectional view of a head cover and its surrounding parts of a horizontal compressor according to a third embodiment of the present invention; and

fig. 6 is a sectional view of a head cover and its surrounding parts of a horizontal compressor according to a fourth embodiment of the present invention.

Detailed Description

The invention is described in detail below with the aid of specific embodiments with reference to the attached drawings. The following detailed description of the invention is merely for purposes of illustration and is in no way intended to limit the invention, its application, or uses.

The utility model provides an adopt lubricated horizontal compressor's of oil mist top cap, this top cap have the Bernoulli passageway (promptly, utilized the suction passageway of Bernoulli principle) for under pressure differential's effect, subside the liquid lubricating oil and/or the liquid refrigerant (promptly, liquid working fluid) in the bottom in top cap exhaust chamber can follow the bottom in top cap exhaust chamber and discharge the top cap exhaust chamber with the help of this Bernoulli passageway. Furthermore, according to the utility model discloses a bernoulli's passageway has nimble design, can set up inside or outside the top cap according to practical application's needs, perhaps directly designs into the structure of embedding to the inside of top cap to the diameter of bernoulli's passageway also can be adjusted according to the pressure differential of different operating modes. Here, it should be noted that, except that the top cover has the bernoulli passage, the structure and function of other parts of the horizontal compressor according to the present invention are substantially the same as those of the related art horizontal compressor using oil mist according to the related art, and therefore, the detailed description of other parts of the horizontal compressor is omitted, and only the bernoulli passage of the top cover thereof is mainly described.

In the following sections, the construction and operating principle of various embodiments of bernoulli passages of a head cover of a horizontal compressor according to the present invention will be described with reference to fig. 3-6.

Fig. 3 shows a top cover 31 of a horizontal compressor and its surrounding parts according to a first embodiment of the present invention.

As shown in fig. 3, the top cover 31 of the horizontal compressor according to the first embodiment of the present invention may include a top cover body, which may include an end plate 313 and a cylindrical portion, and some additional structures/components provided or formed at the top cover body. In particular, the top cover 31 has a bernoulli tube 311 (i.e., a suction tube) and a curved exhaust tube disposed at the top of the top cover 31 (upper portion of the cylindrical portion), the bernoulli tube 311 defining a bernoulli passage (i.e., a suction passage) and the exhaust tube defining an exhaust passage 312. Here, the exhaust pipe is a separate component and is attached to an exhaust opening formed at the top of the top cover 31. The discharge passage 312 serves to discharge the working fluid, which has entered the head discharge chamber 51 defined by the head 31 and the silencing partition 41, out of the head discharge chamber 51. The bernoulli tube 311 can be vertically disposed outside of the end plate 313 of the top cover 31, and a bend is provided at the bottom of the bernoulli tube 311 that passes through the end plate 313 to extend into the top cover exhaust cavity 51. Thus, the first end of the bernoulli passage extends into the bottom of the top cover exhaust cavity 51, while the second end communicates with the exhaust passage 312 (specifically, connects to the exhaust passage 312 in a section outside the top cover 31) such that the inlet of the bernoulli passage is located at the bottom of the top cover exhaust cavity 51 and the outlet of the bernoulli passage is located in the exhaust passage 312. For example, the bernoulli tube 311 can be connected to the exhaust tube and end plate 313 by interference fit or screw fastening. Thus, in the case where liquid (liquid lubricant and/or liquid refrigerant) is accumulated in the bottom of the head discharge chamber 51, when the horizontal compressor is in an operating state, working fluid discharged from a compression mechanism (not shown) of the horizontal compressor enters the head discharge chamber 51 through the muffler partition hole 411 in the muffler partition 41 and is then discharged outward through the discharge passage 312, and when the working fluid is rapidly discharged outward through the discharge passage 312, the air pressure at the discharge passage 312 is lower than the air pressure at the head discharge chamber 51 (in particular, the pressure at the oil/liquid accumulation at the bottom of the head discharge chamber 51) due to the bernoulli principle, so that the oil accumulation at the bottom of the head discharge chamber 51 is sucked to the discharge passage 312 through the bernoulli tube 311 and discharged out of the head discharge chamber 51. Therefore, the accumulated oil/accumulated liquid settled at the bottom of the top cover exhaust cavity 51 is discharged out of the top cover exhaust cavity 51, so that the phenomenon of the accumulated oil/accumulated liquid at the bottom of the top cover exhaust cavity 51 is reduced or eliminated.

Fig. 4 shows a top cover 32 of a horizontal compressor and its surrounding components according to a second embodiment of the present invention.

As shown in fig. 4, the head cover 32 of the horizontal compressor according to the second embodiment of the present invention has a bernoulli tube 321 (i.e., a suction tube) and a flat exhaust tube disposed at an upper portion of the head cover 32, the bernoulli tube 321 defining a bernoulli passage (i.e., a suction passage) and the exhaust tube defining an exhaust passage 322. Here, the exhaust pipe is a separate component and is attached to an exhaust opening formed at an upper portion of the end plate of the top cover 32. The exhaust passage 322 serves to discharge the working fluid, which has entered the head cover exhaust chamber 52 defined by the head cover 32 and the sound-deadening partition 42, out of the head cover exhaust chamber 52. The bernoulli tubes 321 can be vertically disposed inside the end plate of the top cover 32 (i.e., extending vertically in the top cover exhaust cavity 52) such that a first end of the bernoulli passages are located at the bottom of the top cover exhaust cavity 52 and a second end communicates with the exhaust passages 322 (specifically, connected to the exhaust passages 322 in a section thereof that is inside the end plate of the top cover 32) such that the inlets of the bernoulli passages are located at the bottom of the top cover exhaust cavity 52 and the outlets of the bernoulli passages are located in the exhaust passages 322. For example, the bernoulli tube 321 can be connected to the exhaust tube by interference fit or screw fastening. Thus, in the case where liquid (liquid lubricant and/or liquid refrigerant) is accumulated in the bottom of the head discharge chamber 52, when the horizontal compressor is in an operating state, working fluid discharged from a compression mechanism (not shown) of the horizontal compressor enters the head discharge chamber 52 through the muffler partition hole 421 in the muffler partition 42 and is then discharged outward through the discharge passage 322, and when the working fluid is rapidly discharged outward through the discharge passage 322, the air pressure at the discharge passage 322 is lower than the air pressure at the head discharge chamber 52 (in particular, the pressure at the oil/liquid accumulation at the bottom of the head discharge chamber 52) due to the bernoulli principle, so that the oil accumulation at the bottom of the head discharge chamber 52 is sucked to the discharge passage 322 through the bernoulli tube 321 and discharged out of the head discharge chamber 52. Therefore, the accumulated oil/accumulated liquid settled at the bottom of the top cover exhaust cavity 52 is discharged out of the top cover exhaust cavity 52, so that the phenomenon of the accumulated oil/accumulated liquid at the bottom of the top cover exhaust cavity 52 is reduced or eliminated. Furthermore, the bernoulli tube of the second embodiment is disposed inside the top cover exhaust cavity, making the overall structure more compact and less prone to damage than the first embodiment.

Fig. 5 shows a top cover 33 of a horizontal compressor and its surrounding parts according to a third embodiment of the present invention.

As shown in fig. 5, the head cover 33 of the horizontal compressor according to the third embodiment of the present invention has a bernoulli tube 331 (i.e., a suction tube) and a curved exhaust tube disposed at an upper portion of the head cover 33, the bernoulli tube 331 defining a bernoulli passage (i.e., a suction passage) and the exhaust tube defining an exhaust passage 332. Here, the exhaust pipe is a separate component and is attached to an exhaust opening formed at an upper portion of the cylindrical portion of the top cover 33. The exhaust passage 332 has an upper section 3321 extending horizontally, a lower section 3322 extending vertically, and a curved section 3323 connecting the upper section 3321 and the lower section 3322 together for exhausting the working fluid entering the head exhaust chamber 53 defined by the head 33 and the sound-deadening barrier 43 out of the head exhaust chamber 53. The bernoulli tube 331 can be disposed vertically inside the end plate of the top cover 33 (i.e., extending vertically in the top cover exhaust cavity 53) and provided with a bend at the top such that a first end of the bernoulli channel is located at the bottom of the top cover exhaust cavity 53 and a bend is formed at a second end of the bernoulli channel to communicate with a lower section 3322 of the exhaust channel 332 located in the top cover exhaust cavity 53. Thus, the inlet of the bernoulli passage is located at the bottom of the top cover exhaust cavity 53, while the outlet of the bernoulli passage is located in the exhaust passage 332. For example, the bernoulli tube 331 is connected to the exhaust tube by interference fit or screw fastening. Thus, in the case where liquid (liquid lubricant and/or liquid refrigerant) is accumulated in the bottom of the head discharge chamber 53, when the horizontal compressor is in an operating state, working fluid discharged from a compression mechanism (not shown) of the horizontal compressor enters the head discharge chamber 53 through the muffler partition hole 431 in the muffler partition 43 and is then discharged outward through the discharge passage 332, and when the working fluid is rapidly discharged outward through the discharge passage 332, the air pressure at the discharge passage 332 is lower than the air pressure at the head discharge chamber 53 (in particular, the pressure at the oil/liquid accumulation at the bottom of the head discharge chamber 53) due to the bernoulli principle, so that the oil accumulation at the bottom of the head discharge chamber 53 is sucked to the discharge passage 332 through the bernoulli tube 331 to be discharged out of the head discharge chamber 53. Therefore, the accumulated oil/accumulated liquid settled at the bottom of the top cover exhaust cavity 53 is discharged out of the top cover exhaust cavity 53, so that the phenomenon of the accumulated oil/accumulated liquid at the bottom of the top cover exhaust cavity 53 is reduced or eliminated. Furthermore, the bernoulli tube of the third embodiment is disposed inside the top cover exhaust cavity, making the overall structure more compact and less prone to damage than the first embodiment; in contrast to the second embodiment, because the exhaust tube of the top cover of the third embodiment has a curved configuration, the outlet of the bernoulli tube is lower in height, which facilitates pumping of oil/liquid accumulation through the bernoulli tube into the exhaust channel.

Fig. 6 shows a top cover 34 of a horizontal compressor and its surrounding parts according to a fourth embodiment of the present invention.

As shown in fig. 6, the head cover 34 of the horizontal compressor according to the fourth embodiment of the present invention has a bernoulli passage 341 (i.e., a suction passage) provided inside an end plate 344 of the head cover 34 and an exhaust pipe provided in an upper portion of the head cover 34, the exhaust pipe defining an exhaust passage 342. Here, the exhaust pipe is a separate component and is attached to an exhaust opening formed at an upper portion of the end plate 344 of the top cover 34. Exhaust passage 342 is provided for exhausting the working fluid entering the head exhaust chamber 54 defined by head 34 and sound-deadening barrier 44 out of the head exhaust chamber 54. The bernoulli passage 341 opens inside the end plate 344 of the top cover 34 such that a first end of the bernoulli passage 341 is sealed by a plug 343 at the bottom of the end plate 344 of the top cover 34, while a second end communicates with the vent passage 342 (specifically, is connected to the vent passage 342 in a section inside the end plate 344 of the top cover 34). For example, the bernoulli channels 341 can be machined or cast into the end plates 344 of the top cover 34. A branch 3411 fluidly connecting the bernoulli passage 341 with the bottom of the dome exhaust chamber 54 is also provided at the first end of the bernoulli passage 341 so that the first end of the bernoulli passage 341 is in communication with the bottom of the dome exhaust chamber 54. Thus, the inlet of the bernoulli passage 341 is in fluid communication with the bottom of the top cover vent chamber 54, while the outlet of the bernoulli passage 341 is located in the vent passage 342. Thus, in the case where liquid (liquid lubricant and/or liquid refrigerant) is accumulated in the bottom of head discharge chamber 54, when the horizontal compressor is in an operating state, working fluid discharged from a compression mechanism (not shown) of the horizontal compressor enters head discharge chamber 54 through muffler partition holes 441 in muffler partition 44 and is then discharged outward through discharge passage 342, and when the working fluid is rapidly discharged outward through discharge passage 342, the air pressure at discharge passage 342 is lower than the air pressure at head discharge chamber 54 (in particular, the pressure at the oil/liquid accumulation at the bottom of head discharge chamber 54) due to bernoulli's principle, thereby causing the liquid accumulation at the bottom of head discharge chamber 54 to be sucked to discharge passage 342 through bernoulli passage 341 and discharged out of head discharge chamber 54. Therefore, the accumulated oil/accumulated liquid settled at the bottom of the top cover exhaust cavity 54 is discharged out of the top cover exhaust cavity 54, so that the phenomenon of the accumulated oil/accumulated liquid at the bottom of the top cover exhaust cavity 54 is reduced or eliminated. Furthermore, the bernoulli passages of the fourth embodiment open inside the end plate of the top cover compared to the previous embodiments, so that no additional bernoulli tubes need to be provided to define the bernoulli passages, making assembly of the top cover easier.

According to the utility model discloses, owing to be provided with the suction channel, realized will subsiding to the long-pending oil/hydrops discharge top cap exhaust chamber of the bottom in top cap exhaust chamber to reduce or eliminate the long-pending oil/hydrops phenomenon of the bottom in top cap exhaust chamber. In addition, compare with the suction channel setting at the relevant technical scheme of deciding vortex end plate or amortization baffle, according to the utility model discloses a suction channel is used for discharging the working fluid in the top cap exhaust chamber to outside exhaust passage owing to its exit linkage, consequently can directly discharge long-pending oil/hydrops to the compressor outside, and this can reduce or eliminate long-pending oil/hydrops phenomenon more effectively and reliably.

In addition, the present invention allows for a variety of possible variations. For example, although it is specifically described above that an exhaust pipe is provided and one end portion of the suction passage is connected to the exhaust pipe. However, it is conceivable that one end of the suction channel may also be directly connected into the exhaust opening formed at the top cover. In this case, the exhaust opening and an exhaust fitting mounted on the outside of the top cover in communication with the exhaust opening may together constitute an exhaust passage. Also, although in the above detailed description, the top cover is attached to the sound-deadening barrier to define the top cover discharge chamber, it is contemplated that the top cover may be directly attached to the non-orbiting scroll end plate of the compression mechanism to define the top cover discharge chamber.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the specific embodiments described and illustrated in detail herein, and that various changes may be made to the exemplary embodiments by those skilled in the art without departing from the scope defined by the appended claims.

Claims (10)

1. A head cover of a horizontal compressor, the head cover defining a head cover discharge chamber at an inner side of the head cover and being provided with a discharge passage in fluid communication with the head cover discharge chamber for discharging outward working fluid discharged from a compression mechanism of the horizontal compressor into the head cover discharge chamber,

the horizontal compressor is characterized in that the top cover is further provided with a suction channel, the suction channel is provided with a first end part and a second end part, the first end part is communicated with the bottom of the top cover exhaust cavity, the second end part is communicated with the exhaust channel so as to enable the bottom of the top cover exhaust cavity to be communicated with the exhaust channel in a fluid mode, and when the horizontal compressor operates, accumulated liquid at the bottom of the top cover exhaust cavity can flow into the exhaust channel through the suction channel under the action of pressure difference so as to be exhausted from the top cover exhaust cavity.

2. The top cover of a horizontal compressor according to claim 1, wherein the suction channel is defined by a suction tube.

3. The head cover of the horizontal compressor according to claim 2, wherein the suction pipe is disposed outside an end plate of the head cover, and a bottom of the suction pipe is provided with a bent portion such that a first end of the suction passage extends into a bottom of the head cover discharge chamber through the end plate.

4. The head cover of the horizontal compressor according to claim 2, wherein the suction pipe is disposed inside the head cover discharge chamber.

5. The top head of the horizontal compressor as claimed in claim 4, wherein the discharge channel is defined by a horizontally disposed straight tube, and the suction tube extends vertically.

6. The head cover of a horizontal compressor according to claim 4, wherein the discharge channel is defined by an elbow and comprises an upper section extending horizontally, a lower section extending vertically, and a curved section connecting the upper section and the lower section together, and

the suction duct extends vertically and is provided with a bend at the top to form a bend at the second end of the suction channel to communicate with the lower section of the exhaust channel.

7. The head cover of the horizontal compressor according to claim 1, wherein the suction channel is provided inside an end plate of the head cover, a first end of the suction channel is opened to a bottom of the head cover discharge chamber and a second end of the suction channel is communicated with a section of the discharge channel inside the end plate.

8. A horizontal compressor, characterized in that it comprises a head cover according to any one of claims 1 to 7.

9. The horizontal compressor of claim 8, wherein:

the horizontal compressor includes a sound attenuating partition to which the head cover is attached to define the head cover discharge chamber; or

The head cover is directly attached to a non-orbiting scroll end plate of the compression mechanism to define the head cover discharge chamber.

10. The horizontal compressor according to claim 8 or 9, wherein the horizontal compressor is a horizontal scroll compressor employing oil mist lubrication.

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