Compressor, air conditioner

Abstract

The utility model provides a kind of compressor, air conditioner, wherein compressor, including compressor shell, the pump body assembly in the compressor shell and the liquid accumulator in the outside of the compressor shell, the air outlet pipe of the liquid accumulator is communicated with the suction port of the pump body assembly, and the compressor shell is contacted with the liquid storage shell of the liquid accumulator.The utility model effectively improves the problem that liquid refrigerant enters compressor and refrigeration capacity is insufficient caused by the low or insufficient system suction superheat, protects compressor from damage while improving compressor pump body volumetric efficiency, helps to improve compressor refrigeration or heating capacity, and further improves compressor energy efficiency level;The temperature of high-temperature compressor can be effectively reduced, and the exhaust temperature during high-frequency heavy operating condition of compressor is controlled, so that the operation reliability risk of compressor caused by high temperature is reduced to a certain extent.

Description

Technical Field

[0001] This utility model belongs to the field of compressor design technology, specifically relating to a compressor and an air conditioner. Background Technology

[0002] A conventional rotary compressor mainly consists of a compressor body and a receiver. The compressor body primarily comprises a pump assembly, a motor assembly, and a housing. The receiver is located on one side of the compressor body and is fixed to a receiver bracket on the compressor body housing by a receiver pressure plate. The receiver inlet pipe connects to the system piping, and the outlet pipe connects to the pump body of the compressor. The high-temperature, high-pressure refrigerant gas generated by the compressor pump assembly enters the system piping through the compressor outlet. After condensation and evaporation in the system piping, it is transformed into a low-temperature, low-pressure gas, which then enters the receiver through the receiver inlet pipe and finally enters the compressor pump body through the receiver outlet pipe, thus realizing the periodic cyclical operation of the compressor and system piping.

[0003] Suction superheat refers to the degree to which the refrigerant's temperature before entering the compressor is higher than its saturation temperature at its corresponding evaporation pressure. Appropriate suction superheat can reduce or prevent liquid refrigerant from entering the compressor, protecting it from damage. It also allows more refrigerant to remain in a gaseous state, absorbing heat more effectively, thus increasing the compressor's cooling capacity and improving its energy efficiency.

[0004] With the global trend towards lower GWP (Gas-to-Waste Power) refrigerants in air conditioning systems, R290, an environmentally friendly refrigerant, is gradually becoming the mainstream refrigerant. Due to the physical properties of R290 and considerations for system reliability and safety, the suction superheat in systems using R290 is difficult to control and typically falls below the optimal range. Therefore, for compressors using R290 refrigerant, increasing the suction superheat can effectively improve the heating capacity and energy efficiency of R290. Utility Model Content

[0005] Therefore, this utility model provides a compressor and an air conditioner that can overcome the technical problem in the related art that the refrigerant suction superheat of the compressor is difficult to control, and is usually lower than the optimal range of the refrigerant, which affects the compressor suction volume and leads to a reduction in the compressor's cooling or heating capacity and energy efficiency.

[0006] To address the aforementioned problems, this utility model provides a compressor, comprising a compressor housing, a pump assembly located within the compressor housing, and a liquid reservoir located outside the compressor housing. The outlet pipe of the liquid reservoir is connected to the intake port of the pump assembly, and the compressor housing is in contact with the liquid reservoir housing.

[0007] In some embodiments, the liquid storage housing has a first sidewall, the outer surface of which is an arc surface that matches the outer surface of the compressor housing.

[0008] In some embodiments, the first sidewall is welded to the compressor housing as a single unit.

[0009] In some embodiments, the compressor further includes a liquid receiver bracket that connects the liquid receiver housing to the compressor housing.

[0010] In some embodiments, a shock-absorbing pad is provided in a portion of the mating surface between the first sidewall and the compressor housing.

[0011] In some embodiments, the liquid reservoir bracket includes a first fixed arm, a second fixed arm, and a pressure plate. The first fixed arm and the second fixed arm each have a first end that is fixedly connected to the compressor housing as a whole. The two ends of the pressure plate are detachably connected to the second ends of the first fixed arm and the second fixed arm, respectively. The liquid reservoir is surrounded and tightened by the compressor housing, the first fixed arm, the pressure plate, and the second fixed arm.

[0012] In some embodiments, the liquid storage housing has a second sidewall disposed opposite to the first sidewall, projected on a plane perpendicular to the axial direction of the compressor housing, the second sidewall being circular with the first sidewall, and the clamping section of the pressure plate matching the shape of the second sidewall.

[0013] In some embodiments, the clamping section of the pressure plate has a first connecting section and a second connecting section at both ends, wherein the first connecting section is hooked to one of the first fixed arm and the second fixed arm, and the second connecting section is connected to the other of the first fixed arm and the second fixed arm by a threaded component.

[0014] In some embodiments, the shock-absorbing pad is annular, the shape of which matches the shape of the liquid storage housing to be fitted onto the outside of the liquid storage housing, and a through hole is formed on the portion of the shock-absorbing pad within the mating surface of the first sidewall and the compressor housing.

[0015] This utility model also provides an air conditioner, including the compressor described above.

[0016] The compressor and air conditioner provided by this utility model have the following beneficial effects:

[0017] By placing the liquid receiver shell in contact with the compressor shell, the high heat generated by the compressor shell during operation can be transferred to the liquid receiver shell. This heats the refrigerant inside the receiver, effectively mitigating the problem of insufficient or low suction superheat leading to liquid refrigerant entering the compressor and insufficient cooling capacity. This protects the compressor from damage while improving the compressor pump volumetric efficiency, thus enhancing its cooling or heating capacity and overall energy efficiency. Simultaneously, the heat transfer from the high-temperature compressor shell to the low-temperature liquid receiver effectively reduces the temperature of the high-temperature compressor, controlling the discharge temperature during high-frequency, heavy-duty operation and mitigating operational reliability risks caused by high temperatures.

[0018] The first sidewall of the liquid storage shell is designed as an arc shape that matches the outer wall of the compressor shell. On the one hand, this can improve the connection reliability and stability of the liquid storage tank itself. On the other hand, it can ensure that there is a large contact area between the liquid storage shell and the first sidewall, thereby ensuring efficient heat conduction.

[0019] By using an annular shock-absorbing pad fitted on the outside of the liquid storage shell and clamped between the liquid storage shell and the liquid storage support, the vibration transmission from the compressor to the liquid storage can be reduced, and the assembly of the shock-absorbing pad can be simplified. Attached Figure Description

[0020] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the internal structure of a rolling rotor compressor in the prior art;

[0022] Figure 2 yes Figure 1 Top view;

[0023] Figure 3 This is a schematic diagram (three-dimensional structural diagram) of the external structure of the compressor in this embodiment of the utility model;

[0024] Figure 4 yes Figure 3 A schematic diagram of the internal structure of the compressor in the image;

[0025] Figure 5 yes Figure 3 A three-dimensional structural diagram of the liquid reservoir in the middle;

[0026] Figure 6This is a top view of the compressor in another embodiment of the present invention, in which the liquid storage shell and the compressor shell are tightly fitted together by the liquid storage support;

[0027] Figure 7 This is a top view of the compressor in another embodiment of the present invention. The liquid storage shell and the compressor shell are connected as one piece by welding.

[0028] The attached figures are labeled as follows:

[0029] 1. Compressor housing; 11. Pump assembly; 12. Motor assembly; 2. Liquid receiver; 21. Liquid receiver housing; 211. First side wall; 212. Second side wall; 213. Third side wall; 214. Fourth side wall; 22. Air outlet pipe; 23. Air inlet pipe; 3. Shock absorber; 41. First fixed arm; 42. Second fixed arm; 43. Pressure plate. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0031] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0032] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90° or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0033] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0034] Figure 1 The image shown is a cross-sectional view of a conventional rolling rotor compressor. Figure 2 The image shown is a top view of a conventional roller compressor. (See attached image.) Figure 1 and Figure 2 As shown, a conventional rolling rotor compressor mainly consists of a compressor body and a receiver. The compressor body primarily comprises a pump assembly, a motor assembly, and a housing, while the receiver mainly consists of an inlet pipe, an outlet pipe, and a cylinder. The receiver is located on one side of the compressor body and is fixed to a receiver bracket on the compressor body housing by a receiver pressure plate. The receiver inlet pipe connects to the system piping, and the outlet pipe connects to the pump body of the compressor body. The high-temperature, high-pressure refrigerant gas generated by the compressor pump assembly enters the system piping through the compressor outlet. After condensation and evaporation in the system piping, it is transformed into a low-temperature, low-pressure gas, which then enters the receiver through the receiver inlet pipe and finally enters the compressor pump assembly through the receiver outlet pipe, realizing the periodic cyclical operation of the compressor and system piping.

[0035] Suction superheat refers to the degree to which the refrigerant's temperature before entering the compressor is higher than its saturation temperature at its corresponding evaporation pressure. Appropriate suction superheat can reduce or prevent liquid refrigerant from entering the compressor, protecting it from damage. It also allows more refrigerant to remain in a gaseous state, absorbing heat more effectively, thus increasing the compressor's cooling capacity and improving its energy efficiency.

[0036] With the global trend towards lower GWP (Gas-to-Warm-Up) refrigerants for air conditioning, R290, an environmentally friendly refrigerant, is gradually becoming the mainstream refrigerant. Due to the physical properties of R290 and considerations for system reliability and safety, the suction superheat of air conditioning systems using R290 is difficult to control and typically falls below the optimal range. Therefore, for compressors using R290 refrigerant, increasing the suction superheat is one of the effective technical means to improve the heating capacity and energy efficiency of R290.

[0037] This utility model addresses the aforementioned problems by proposing an innovative compressor structure, which is particularly suitable for R290 refrigerant compressors. It can effectively increase the heat transfer from the high-temperature compressor body to the low-temperature liquid receiver, thereby effectively improving the superheat of the liquid receiver's suction and enhancing the compressor's energy efficiency.

[0038] See also Figures 3 to 7 As shown, according to an embodiment of the present invention, a compressor is provided, particularly a rolling rotor compressor. In one specific embodiment, the refrigerant used is R290. The compressor includes a compressor housing 1, a pump assembly 11 located within the compressor housing 1, a motor assembly 12 for driving the pump assembly 11 to generate a suction-compression-discharge cycle for the refrigerant, and a liquid receiver 2 located outside the compressor housing 1. The outlet pipe 22 of the liquid receiver 2 is connected to the suction port (not shown in the figure, not labeled) of the pump assembly 11, and the compressor housing 1 is in contact with the liquid receiver housing 21 of the liquid receiver 2.

[0039] In this technical solution, the liquid receiver 21 of the receiver 2 is brought into contact with the compressor housing 1. This allows the high heat from the compressor housing 1 during operation to be transferred to the liquid receiver 21, thereby heating the refrigerant inside the receiver 2. This effectively improves the problem of insufficient or low suction superheat of the system, which leads to liquid refrigerant entering the compressor and insufficient cooling capacity. It protects the compressor from damage and improves the volumetric efficiency of the compressor pump, which helps to enhance the compressor's cooling or heating capacity and thus improve the compressor's energy efficiency. At the same time, the heat transfer from the high-temperature compressor housing 1 to the low-temperature receiver 2 can effectively reduce the temperature of the high-temperature compressor and control the discharge temperature of the compressor during high-frequency heavy-duty operation, thereby reducing the operational reliability risk of the compressor due to high temperature to a certain extent.

[0040] In some embodiments, the liquid storage housing 21 has a first sidewall 211, the outer wall surface of which is an arc surface that matches the outer wall surface of the compressor housing 1.

[0041] In this technical solution, the first side wall 211 of the liquid storage shell 21 is designed as an arc shape that matches the outer wall surface of the compressor shell 1. On the one hand, this can improve the connection reliability and stability of the liquid storage tank 2 itself. On the other hand, it can ensure that there is a large contact area between the liquid storage shell 21 and the first side wall 211, thereby ensuring efficient heat conduction.

[0042] See details Figure 7 As shown, in some embodiments, the first sidewall 211 is welded to the compressor housing 1 as a whole, in which case the liquid receiver 2 and the compressor housing 1 form a reliable whole with high heat transfer efficiency.

[0043] See details Figures 3 to 6 As shown, in some embodiments, the compressor further includes a liquid receiver bracket (not labeled in the figure), which connects the liquid receiver housing 21 to the compressor housing 1 as a single unit. In this case, a shock-absorbing pad 3 can be provided in a portion of the mating surface between the first sidewall 211 and the compressor housing 1. The aforementioned shock-absorbing pad 3 can be, for example, a rubber pad, thereby reducing the transmission of compressor vibration to the liquid receiver 2 and reducing compressor operating noise. It is understood that, in order to ensure efficient transmission from the compressor housing 1 to the liquid receiver housing 21, the thickness of the aforementioned shock-absorbing pad 3 should be as small as possible. In another preferred embodiment, the shock-absorbing pad 3 has through holes penetrating both sides. In this case, the thickness of the shock-absorbing pad 3 can be appropriately increased based on the shock-absorbing effect without causing excessive adverse effects on heat conduction.

[0044] See details Figure 6 As shown, in some embodiments, the liquid reservoir bracket includes a first fixing arm 41, a second fixing arm 42, and a pressure plate 43. The first fixing arm 41 and the second fixing arm 42 are respectively fixedly connected (e.g., welded) to the compressor housing 1 at their first ends. The two ends of the pressure plate 43 are detachably connected to the second ends of the first fixing arm 41 and the second fixing arm 42, respectively. The liquid reservoir 21 is surrounded and tightened by the compressor housing 1, the first fixing arm 41, the pressure plate 43, and the second fixing arm 42.

[0045] See also Figure 6The liquid storage housing 21 has a second side wall 212 opposite to the first side wall 211, and a third side wall 213 and a fourth side wall 214 located at the corresponding ends of the first side wall 211 and the second side wall 212, respectively. The first side wall 211, the third side wall 213, the second side wall 212 and the fourth side wall 214 are arranged together to form the liquid storage housing 21 of this utility model. Corresponding end sealing plates (not marked in the figure) are formed on the top and bottom sides of the liquid storage housing 21. An air inlet pipe 23 and an air outlet pipe 22 are respectively provided on the top and bottom end sealing plates. Projected on a plane perpendicular to the axial direction of the compressor housing 1, the second side wall 212 is arranged in the same circle as the first side wall 211. The clamping section of the pressure plate 43 matches the shape of the second side wall 212, so as to ensure the reliable fixation of the liquid storage container bracket to the liquid storage container 2. The aforementioned first fixing arm 41 and second fixing arm 42 can respectively limit the contact of the aforementioned third side wall 213 and fourth side wall 214. It should be noted that the circumferential extension width of the aforementioned first side wall 211 on the compressor housing 1 is at least twice (three times in a specific embodiment) the radial extension width of the third side wall 213 or the fourth side wall 214 on the compressor housing 1, so as to ensure efficient heat conduction while making the connection of the liquid receiver more reliable and stable.

[0046] In some embodiments, the clamping section of the pressure plate 43 has a first connecting section (not shown in the figure, not indexed) and a second connecting section (not shown in the figure, not indexed) at both ends of its length. The first connecting section is hooked to one of the first fixed arm 41 and the second fixed arm 42, and the second connecting section is connected to the other of the first fixed arm 41 and the second fixed arm 42 by a threaded part (bolt assembly shown in the figure), which facilitates quick assembly between the liquid reservoir and the compressor.

[0047] In some embodiments, the shock-absorbing pad 3 is annular, the shape of which matches the shape of the liquid storage housing 21 to be fitted onto the outside of the liquid storage housing 21, and a through hole (not indicated in the figure) is formed on the portion of the shock-absorbing pad 3 within the mating surface of the first sidewall 211 and the compressor housing 1.

[0048] In this technical solution, the annular shock-absorbing pad 3 is sleeved on the outside of the liquid storage shell 21 and clamped between the liquid storage shell 21 and the liquid storage bracket. This can reduce the vibration transmission from the compressor to the liquid storage and also simplify the assembly of the shock-absorbing pad 3.

[0049] According to an embodiment of the present invention, an air conditioner is also provided, including the compressor described above.

[0050] It will be readily understood by those skilled in the art that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0051] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A compressor characterized by, It includes a compressor housing (1), a pump assembly (11) inside the compressor housing (1) and a liquid reservoir (2) outside the compressor housing (1). The outlet pipe (22) of the liquid reservoir (2) is connected to the intake port of the pump assembly (11), and the compressor housing (1) is in contact with the liquid reservoir housing (21) of the liquid reservoir (2).

2. The compressor of claim 1, wherein, The liquid storage housing (21) has a first sidewall (211), the outer wall surface of which is an arc surface that matches the outer wall surface of the compressor housing (1).

3. The compressor of claim 2, wherein, The first sidewall (211) is welded to the compressor housing (1) as a whole.

4. The compressor according to claim 3, characterized in that, It also includes a liquid reservoir bracket, which connects the liquid reservoir housing (21) and the compressor housing (1) into one unit.

5. The compressor of claim 4, wherein, A shock-absorbing pad (3) is provided in a portion of the mating surface between the first sidewall (211) and the compressor housing (1).

6. The compressor of claim 5, wherein, The liquid storage container bracket includes a first fixed arm (41), a second fixed arm (42), and a pressure plate (43). The first fixed arm (41) and the second fixed arm (42) are respectively fixedly connected to the compressor housing (1) at their first ends. The two ends of the pressure plate (43) are detachably connected to the second ends of the first fixed arm (41) and the second fixed arm (42). The liquid storage housing (21) is surrounded and tightened by the compressor housing (1), the first fixed arm (41), the pressure plate (43), and the second fixed arm (42).

7. The compressor of claim 6, wherein, The liquid storage housing (21) has a second side wall (212) that is disposed opposite to the first side wall (211) and projected on a plane perpendicular to the axial direction of the compressor housing (1). The second side wall (212) is disposed in the same circle as the first side wall (211), and the clamping section of the pressure plate (43) matches the shape of the second side wall (212).

8. The compressor of claim 7, wherein, The clamping section of the pressure plate (43) has a first connecting section and a second connecting section at both ends. The first connecting section is hooked to one of the first fixed arm (41) and the second fixed arm (42), and the second connecting section is connected to the other of the first fixed arm (41) and the second fixed arm (42) by a threaded part.

9. The compressor of claim 7, wherein, The shock-absorbing pad (3) is annular, and the shape of the annular pad matches the shape of the liquid storage housing (21) so as to be fitted onto the outside of the liquid storage housing (21). A through hole is formed on the part of the shock-absorbing pad (3) located within the mating surface between the first sidewall (211) and the compressor housing (1).

10. An air conditioner characterized by comprising: The compressor includes any one of claims 1 to 9.

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