Horizontal scroll compressor for vehicle, air conditioner and vehicle

Abstract

The utility model discloses a horizontal scroll compressor, air conditioner and vehicle for vehicle, the horizontal scroll compressor includes: the casing, the casing is equipped with the support for supporting crankshaft, the compression component includes the meshed engagement of dynamic scroll and static scroll, the crankshaft is connected with dynamic scroll for driving dynamic scroll rotation, the support one side towards dynamic scroll is equipped with the oil return groove, and the open side of oil return groove is equipped with the apron to define the oil return channel, and dynamic scroll is slid with support and apron respectively, and the thickness of apron is T, and the width of oil return groove is B in the radial direction parallel to crankshaft, satisfy: the horizontal scroll compressor that the utility model puts forward, the width B of limiting oil return groove's value range, has reduced the risk that apron appears partial deformation, has improved apron stress concentration problem, has prolonged the service life of horizontal scroll compressor.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to a horizontal scroll compressor, an air conditioner, and a vehicle for use in vehicles. Background Technology

[0002] Scroll compressors are high-efficiency, low-noise, and stable-operating positive displacement compressors, widely used in automotive air conditioning systems.

[0003] In related technologies, a scroll compressor includes a crankshaft, a moving scroll, and a stationary scroll. The moving scroll and the stationary scroll mesh with each other. The crankshaft is adapted to drive the moving scroll to rotate relative to the stationary scroll to compress the refrigerant. The scroll compressor also includes a bracket for supporting the crankshaft. To prevent wear on the moving scroll caused by the relative rotation between the moving scroll and the bracket, a wear-resistant cover plate is provided between the moving scroll and the bracket.

[0004] In the above technical solution, the cover plate is prone to local deformation, which affects the use of the scroll compressor. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a horizontal scroll compressor for vehicles, which limits the range of the width B of the oil return groove, reduces the risk of local deformation of the cover plate, improves the problem of stress concentration in the cover plate, and extends the service life of the horizontal scroll compressor.

[0006] This utility model also proposes an air conditioner that includes the above-mentioned horizontal scroll compressor.

[0007] This utility model also proposes a vehicle that includes the above-mentioned horizontal scroll compressor.

[0008] A horizontal scroll compressor according to an embodiment of the present invention includes: a housing, wherein the housing is provided with a bracket for supporting a crankshaft, and the housing has a high-pressure chamber; a compression component, wherein the compression component includes a moving scroll and a stationary scroll that mesh with each other, the crankshaft is connected to the moving scroll for driving the moving scroll to rotate, the stationary scroll has an exhaust port communicating with the high-pressure chamber, and a back pressure chamber is provided between the bracket and the moving scroll; the bracket has an oil return groove on the side facing the moving scroll, the open side of the oil return groove has a cover plate to define an oil return channel, the oil return channel is respectively communicating with the high-pressure chamber and the back pressure chamber, the moving scroll is slidably engaged with the bracket and the cover plate respectively, the cover plate has a thickness of T, and the width of the oil return groove in the radial direction parallel to the crankshaft is B. satisfy:

[0009] According to the embodiments of the present invention, the horizontal scroll compressor limits the range of the width B of the oil return groove by limiting the range of the ratio of the width B of the oil return groove to the thickness T of the cover plate, thereby reducing the risk of local deformation of the cover plate, improving the problem of stress concentration of the cover plate, and extending the service life of the horizontal scroll compressor.

[0010] In some embodiments, T satisfies: 0.2mm≤T≤2mm.

[0011] In some embodiments, the cover plate has a wear-reducing layer on the side facing the moving scroll, and the hardness of the wear-reducing layer is greater than the hardness of the cover plate.

[0012] In some embodiments, the thickness of the friction-reducing layer is C, and the thickness of the cover plate is T. satisfy:

[0013] In some embodiments, the housing includes a refrigerant inlet, a refrigerant outlet, and a low-pressure chamber. The low-pressure chamber and the high-pressure chamber are distributed on both sides of the compression component. The refrigerant inlet communicates with the low-pressure chamber, and the refrigerant outlet communicates with the high-pressure chamber. The intake port of the compression chamber communicates with the low-pressure chamber, and the exhaust port of the compression chamber communicates with the high-pressure chamber. A drive mechanism is provided in the low-pressure chamber, and the drive mechanism is connected to the crankshaft for driving the crankshaft to rotate. The oil outlet of the oil return channel communicates with the back pressure chamber. The stationary scroll is provided with a throttling element, the inlet of which communicates with the high-pressure chamber, and the outlet of which communicates with the oil inlet of the oil return channel.

[0014] In some embodiments, at least the portion of the cover plate opposite the oil return groove is provided with a reinforcing member, which is fixed to the bracket.

[0015] In some embodiments, on the same projection plane parallel to the cross-section of the crankshaft, the orthographic projection of the reinforcement completely covers the orthographic projection of the oil return groove.

[0016] In some embodiments, the bracket is provided with a placement groove, the edge of the reinforcing member is supported in the placement groove and the remaining part is arranged opposite to the oil return groove.

[0017] In some embodiments, the thickness of the reinforcing member is greater than the thickness of the cover plate.

[0018] In some embodiments, the thickness of the reinforcing member is X, and the thickness of the cover plate is T. satisfy:

[0019] The air conditioner according to an embodiment of the present invention includes: the horizontal scroll compressor described in the above technical solution.

[0020] The vehicle according to the present invention includes: the horizontal scroll compressor described in the above technical solution or the air conditioner described in the above technical solution.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of a horizontal scroll compressor according to an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram showing the cooperation of the bracket, cover plate and moving scroll in a horizontal scroll compressor according to an embodiment of the present utility model.

[0025] Figure 3 It is along Figure 2 A cross-sectional view along line AA;

[0026] Figure 4 This is a cross-sectional view of a portion of the structure of a horizontal scroll compressor according to other embodiments of the present invention;

[0027] Figure 5 yes A schematic diagram showing the relationship between the stress concentration factor of the cover plate and the horizontal scroll compressor.

[0028] Figure label:

[0029] 100. Horizontal scroll compressor; 1. Casing; 11. First casing; 111. Refrigerant inlet; 112. Low-pressure chamber; 12. Second casing; 121. High-pressure chamber; 122. Refrigerant outlet; 123. Oil separator structure; 124. Oil reservoir; 2. Drive mechanism; 21. Stator; 22. Rotor; 3. Compression components; 31. Moving scroll; 32. Stationary scroll; 321. Exhaust port; 33. Compression chamber; 4. Support; 41. Back pressure chamber; 42. Oil return groove; 43. Placement groove; 5. Crankshaft; 51. First bearing; 52. Second bearing; 53. Eccentric sleeve; 54. Third bearing; 6. Cover plate; 7. Throttling element; 8. Reinforcing member. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and 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 of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The following is for reference. Figures 1-5 This invention describes a horizontal scroll compressor 100 for a vehicle according to an embodiment of the present invention.

[0034] Reference Figure 1 , Figure 2 and Figure 3 According to an embodiment of the present invention, a horizontal scroll compressor 100 for a vehicle includes: a housing 1, a drive mechanism 2, and a compression component 3, wherein the drive mechanism 2 and the compression component 3 are both disposed in the housing 1.

[0035] The casing 1 is equipped with a refrigerant inlet 111 and a refrigerant outlet 122. The refrigerant inlet 111 and the refrigerant outlet 122 are respectively used to connect with the external working circuit. The refrigerant in the external working circuit can enter the horizontal scroll compressor 100 through the refrigerant inlet 111. The refrigerant after being compressed by the compression component 3 can be discharged through the refrigerant outlet 122 and re-enter the external working circuit.

[0036] The compression component 3 includes a moving scroll 31 and a stationary scroll 32, which mesh together and form a compression chamber 33 between the moving scroll 31 and the stationary scroll 32. The refrigerant inlet 111 and the refrigerant outlet 122 are respectively connected to the compression chamber 33.

[0037] The drive mechanism 2 is located inside the housing 1. The drive mechanism 2 is connected to the moving scroll 31 via the crankshaft 5. The stationary scroll 32 is connected to the housing 1 and is stationary relative to the housing 1. The drive mechanism 2 can drive the moving scroll 31 to rotate via the crankshaft 5. When the moving scroll 31 rotates relative to the stationary scroll 32, it can compress the refrigerant in the compression chamber 33.

[0038] In the above, when the horizontal scroll compressor 100 is working, the drive mechanism 2 drives the rotating scroll 31 to rotate through the crankshaft 5. The refrigerant in the external working circuit is drawn into the compression chamber 33 through the refrigerant inlet 111 and compressed. The compressed high-pressure refrigerant is discharged through the refrigerant outlet 122 and re-enters the external working circuit.

[0039] To improve the stability of the crankshaft 5, the housing 1 is also provided with a bracket 4 for supporting the crankshaft 5. It should be noted that the bracket 4 can be completely disposed inside the housing 1, or it can be formed as part of the housing 1. For example, in some embodiments, the housing 1 includes a first housing 11 and a second housing 12 spaced apart, with the bracket 4 sandwiched between the first housing 11 and the second housing 12. In this embodiment, the bracket 4 is part of the housing 1. It should also be noted that in embodiments where the bracket 4 is completely disposed inside the housing 1, the bracket 4 can be an integral part of the housing 1, or it can be a separate part, as long as the bracket 4 is fixedly disposed on the housing 1. In embodiments where the bracket 4 is sandwiched between the first housing 11 and the second housing 12, the bracket 4 can be an integral part of the first housing 11 and / or the second housing 12, or the bracket 4, the first housing 11, and the second housing 12 can be three separate parts, as long as the bracket 4, the first housing 11, and the second housing 12 are fixedly disposed.

[0040] The bracket 4 is used to support the crankshaft 5, and the bracket 4 is located on the side of the moving scroll 31 away from the stationary scroll 32. The bracket 4 is stationary relative to the housing 1. When the horizontal scroll compressor 100 is working, the moving scroll 31 will rotate relative to the bracket 4. In order to avoid wear on the moving scroll 31 caused by the relative rotation between the moving scroll 31 and the bracket 4, a wear-resistant cover plate 6 is provided between the moving scroll 31 and the bracket 4. The moving scroll 31 slides in cooperation with the bracket 4 and the cover plate 6 respectively. The cover plate 6 can provide support for the moving scroll 31.

[0041] The housing 1 is also provided with a high-pressure chamber 121, which is connected to the refrigerant outlet 122. The stationary scroll 32 is provided with an exhaust port 321 connected to the high-pressure chamber 121. The refrigerant in the compression chamber 33 can enter the high-pressure chamber 121 through the exhaust port 321 and then be discharged through the refrigerant outlet 122.

[0042] It should be noted that the fluid discharged from the compression chamber 33 through the exhaust port 321 is a mixture of refrigerant and refrigeration oil. The high-pressure chamber 121 is equipped with an oil separator 123. Under the action of the oil separator 123, the mixture of refrigerant and refrigeration oil is separated into oil and gas. The separated refrigerant is suitable for discharge through the refrigerant outlet 122, and the separated refrigeration oil enters the oil storage tank 124 of the high-pressure chamber 121.

[0043] A back pressure chamber 41 is provided between the moving scroll 31 and the support 4. The gas in the back pressure chamber 41 can exert a force on the moving scroll 31 to ensure the balance of the moving scroll 31 in the axial direction. The cover plate 6 is provided with a first clearance area corresponding to the position of the back pressure chamber 41 so that the gas in the back pressure chamber 41 can act on the moving scroll 31 through the first clearance area.

[0044] Specifically, the support 4 is provided with an oil return groove 42 on the side facing the moving scroll 31. The extension direction of the oil return groove 42 is parallel to the radial direction of the crankshaft 5. The oil return groove 42 and the cover plate 6 define an oil return channel. The oil return channel is connected to the oil storage tank 124 of the high pressure chamber 121 and the back pressure chamber 41 respectively, so that the refrigeration oil in the oil storage tank 124 can enter the back pressure chamber 41 through the oil return channel to lubricate the friction pairs in the back pressure chamber 41.

[0045] In some embodiments of this utility model, the area of ​​the cover plate 6 directly opposite the oil return groove 42 is suspended. The supporting rigidity of the portion of the cover plate 6 directly opposite the oil return groove 42 is insufficient, causing stress concentration in the cover plate 6. This increases the risk of localized deformation of the cover plate 6, leading to wear on the cover plate 6 or the moving scroll 31. To improve this problem, refer to... Figure 2 , Figure 3 and Figure 5 The horizontal scroll compressor 100 of this utility model embodiment satisfies: Where B is the width of the oil return groove 42 in the radial direction parallel to the crankshaft 5, and T is the thickness of the cover plate 6.

[0046] With the thickness T of the cover plate 6 remaining constant, the wider the width B of the oil return groove 42, the larger the area of ​​the cover plate 6 that is suspended, and the greater the probability of local deformation of the cover plate 6. Conversely, if the thickness T of the cover plate 6 increases, the strength of the cover plate 6 increases, the probability of local deformation decreases, and the width B of the oil return groove 42 can be increased accordingly. Therefore, in this embodiment of the invention, by limiting the range of the ratio of the width B of the oil return groove 42 to the thickness T of the cover plate 6, the range of the width B of the oil return groove 42 is limited, reducing the risk of local deformation of the cover plate 6, improving the stress concentration problem of the cover plate 6, and extending the service life of the horizontal scroll compressor 100.

[0047] And refer to Figure 5 It can be seen that when The larger the value, the wider the width B of the oil return groove 42, the greater the stress concentration factor of the cover plate 6, and the more prone the cover plate 6 is to local deformation. A value that is too small will affect the energy efficiency of the horizontal scroll compressor 100. In the embodiments of this application, This reduces the stress concentration factor of cover plate 6 and also reduces the impact on the energy efficiency of horizontal scroll compressor 100.

[0048] In some specific embodiments, the horizontal scroll compressor 100 of this utility model satisfies the following: It can be any one of the point values ​​of 4, 5, 7, 10, 12, 13, and 15, or a range of values ​​between any two.

[0049] In some further embodiments, the thickness T of the cover plate 6 satisfies: 0.2mm≤T≤2mm.

[0050] If the thickness T of the cover plate 6 is less than 0.2mm, the cover plate 6 will be less rigid and will be easily damaged; if the thickness T of the cover plate 6 is greater than 2mm, the cost of the horizontal scroll compressor 100 will increase and it will not be conducive to the miniaturization of the horizontal scroll compressor 100.

[0051] In this embodiment of the invention, the thickness T of the cover plate 6 is limited to 0.2mm ≤ T ≤ 2mm. This ensures sufficient rigidity of the cover plate 6 while reducing the cost of the horizontal scroll compressor 100. In some specific embodiments, the thickness T of the cover plate 6 is 1mm. In other specific embodiments, the thickness T of the cover plate 6 can also be any one of 0.2mm, 0.6mm, 0.8mm, 1.5mm, or 2mm, or a range between any two.

[0052] In some further embodiments, the cover plate 6 is provided with a wear-reducing layer on the side facing the moving scroll 31, and the hardness of the wear-reducing layer is greater than the hardness of the cover plate 6.

[0053] The above technical solutions further improve the wear resistance of the cover plate 6 and reduce the risk of damage to the cover plate 6 and the moving scroll 31. Furthermore, the wear-reducing layer also strengthens the rigidity of the cover plate 6, further reducing the risk of localized deformation.

[0054] It should be noted that the anti-friction layer can be a plating layer or a coating layer set on the cover plate 6, as long as it is set on the cover plate 6. This utility model does not limit the connection method.

[0055] In some further embodiments, the thickness of the friction-reducing layer is C, and the thickness of the cover plate 6 is T, satisfying:

[0056] With the thickness T of the cover plate 6 remaining constant, a thicker friction-reducing layer C results in better wear resistance for the cover plate 6. However, if the thickness C of the friction-reducing layer is too large, it will affect the cost of the horizontal scroll compressor 100. If the thickness of the cover plate 6 increases, the thickness C of the friction-reducing layer can be reduced accordingly. Therefore, in this embodiment of the invention, by limiting the range of the ratio of the thickness C of the friction-reducing layer to the thickness T of the cover plate 6, the range of the thickness C of the friction-reducing layer is limited, ensuring the wear resistance of the cover plate 6 while reducing the cost of the horizontal scroll compressor 100.

[0057] In some embodiments, the thickness of the cover plate 6 is T, where T satisfies: 0.2mm≤T≤2mm; the thickness of the friction-reducing layer is C, where C satisfies: 0.05mm≤C≤0.15mm.

[0058] In the above technical solution, by limiting the thickness of the cover plate 6, the rigidity of the cover plate 6 is improved and the risk of deformation of the cover plate 6 is reduced. By limiting the thickness of the wear-resistant layer, the wear resistance of the cover plate 6 is effectively enhanced and the service life of the horizontal scroll compressor 100 is extended.

[0059] In some specific embodiments, the thickness C of the friction-reducing layer is 0.1 mm. In other specific embodiments, the thickness C of the friction-reducing layer can also be any one of 0.05 mm, 0.08 mm, 0.11 mm, or 0.15 mm, or a range between any two.

[0060] Reference Figure 4 In some embodiments, at least the portion of the cover plate 6 directly opposite the oil return groove 42 is provided with a reinforcing member 8, which is fixed to the bracket 4.

[0061] In this embodiment of the utility model, the reinforcing member 8 can support the cover plate 6. The reinforcing member 8 strengthens the part of the cover plate 6 that is directly opposite the oil return groove 42, reduces the risk of local deformation of the cover plate 6, improves the stress concentration problem of the cover plate 6, and extends the service life of the horizontal scroll compressor 100.

[0062] In some further embodiments, on the same projection plane parallel to the cross-section of the crankshaft 5, the orthographic projection of the reinforcing member 8 completely covers the orthographic projection of the oil return groove 42.

[0063] In this embodiment of the utility model, the reinforcing member 8 can support the cover plate 6, and the reinforcing member 8 completely covers the open opening of the oil return groove 42 facing the cover plate 6. That is to say, the cover plate 6 will not have any suspended parts due to the oil return groove 42. The side of the cover plate 6 facing the bracket 4 is supported, which effectively reduces the risk of local deformation of the cover plate 6, improves the problem of stress concentration of the cover plate 6, and extends the service life of the horizontal scroll compressor 100.

[0064] In some specific embodiments, the bracket 4 is provided with a placement groove 43, the edge of the reinforcing member 8 is supported in the placement groove 43, and the rest of the part is arranged opposite to the oil return groove 42.

[0065] In this embodiment of the invention, by placing the reinforcing member 8 within the placement groove 43, the side of the reinforcing member 8 facing the cover plate 6 can be flush with the side of the bracket 4 facing the cover plate 6, reducing the concentrated stress on the cover plate 6 and further reducing the risk of local deformation of the cover plate 6. Furthermore, placing the reinforcing member 8 within the placement groove 43 also facilitates its installation, improving the assembly efficiency of the horizontal scroll compressor 100.

[0066] In some specific embodiments, the reinforcing member 8 is constructed as a plate structure, which is simple in structure, easy to manufacture, and reduces the cost of the horizontal scroll compressor 100.

[0067] In some further embodiments, the thickness of the reinforcing member 8 is greater than the thickness of the cover plate 6.

[0068] The above technical solution limits the thickness of the reinforcing member 8, ensuring its strength and enabling it to stably support the cover plate 6, thus extending the service life of the horizontal scroll compressor 100.

[0069] In some embodiments, the thickness of the reinforcing member 8 is X, and the thickness of the cover plate 6 is T, satisfying:

[0070] With the thickness T of the cover plate 6 remaining constant, the thicker the thickness X of the reinforcing member 8, the better the supporting effect of the reinforcing member 8 on the cover plate 6. If the thickness T of the cover plate 6 increases, the thickness T of the reinforcing member 8 can be slightly reduced. Therefore, in this embodiment of the utility model, by limiting the range of the ratio of the thickness X of the reinforcing member 8 to the thickness T of the cover plate 6, the range of the thickness X of the reinforcing member 8 is limited, ensuring that the cover plate 6 has sufficient rigidity and effectively reducing the risk of deformation of the cover plate 6.

[0071] In some embodiments, the thickness of the cover plate 6 is T, where T satisfies: 0.2mm≤T≤2mm; the thickness of the reinforcing member 8 is X, where X satisfies: 1mm≤X≤5mm.

[0072] If the thickness X of the reinforcing member 8 is less than 1 mm, the strength of the reinforcing member 8 is poor, affecting its supporting effect. If the thickness X of the reinforcing member 8 is greater than 5 mm, the depth of the placement groove 43 will be too large, affecting the strength of the bracket 4. In this embodiment of the utility model, the thickness range of the reinforcing member 8 is limited, so that the reinforcing member 8 can stably support the cover plate 6 while reducing the impact of the placement groove 43 on the bracket 4.

[0073] In some specific embodiments, the thickness X of the reinforcing member 8 is 3mm. In other specific embodiments, the thickness X of the reinforcing member 8 can also be any one of 1mm, 2mm, 4mm, and 5mm, or a range between any two.

[0074] The following is for reference Figure 1-3 A specific embodiment of the present invention is described below.

[0075] The horizontal scroll compressor 100 according to an embodiment of the present invention includes: a housing 1, a drive mechanism 2, and a compression component 3.

[0076] The housing 1 includes a first housing 11 and a second housing 12. The first housing 11 is provided with a bracket 4 and a crankshaft 5. The bracket 4 is fixed relative to the first housing 11, and the crankshaft 5 is located inside the first housing 11 and is rotatable relative to the first housing 11. The first housing 11 is provided with a first bearing 51 for supporting the crankshaft 5, and the bracket 4 is provided with a second bearing 52 for supporting the crankshaft 5. That is, one end of the crankshaft 5 is rotatably mounted on the first housing 11 via the first bearing 51, and the other end of the crankshaft 5 is rotatably mounted on the bracket 4 via the second bearing 52.

[0077] The drive mechanism 2 is disposed inside the first housing 11 and is located between the first bearing 51 and the second bearing 52. The drive mechanism 2 includes a stator 21 and a rotor 22. The stator 21 is disposed on the inner wall of the first housing 11, and the rotor 22 is sleeved on the crankshaft 5. The stator 21 and the rotor 22 are coupled together. When the drive mechanism 2 is working, the stator 21 drives the crankshaft 5 to rotate through the rotor 22, so that the crankshaft 5 can drive the rotating scroll 31 to rotate.

[0078] The compression component 3 includes a moving scroll 31, a stationary scroll 32, and an anti-rotation structure. The stationary scroll 32 is disposed on the side of the support 4 opposite to the first housing 11 and is fixedly disposed relative to the support 4. The stationary scroll 32 includes an end plate and a fixed scroll. The moving scroll 31 is located between the stationary scroll 32 and the support 4. The moving scroll 31 includes an end plate and a moving scroll. The fixed scroll and the moving scroll mesh with each other, thereby defining a compression cavity 33 between the fixed scroll and the moving scroll. The anti-rotation structure is used to limit the rotation of the moving scroll 31 while allowing the moving scroll 31 to perform rotational translational motion relative to the stationary scroll 32.

[0079] A wear-resistant cover plate 6 is provided between the moving scroll 31 and the support 4. The moving scroll 31 slides in contact with both the support 4 and the cover plate 6, and the cover plate 6 provides support for the moving scroll 31. An eccentric sleeve 53 is provided at the end of the crankshaft 5 facing the moving scroll 31. The crankshaft 5 is adapted to drive the moving scroll 31 to rotate through the eccentric sleeve 53, and a third bearing 54 is provided between the eccentric sleeve 53 and the moving scroll 31 so that the crankshaft 5 can drive the moving scroll 31 to perform a rotary translational motion relative to the stationary scroll 32. The cover plate 6 has a clearance area for avoiding the eccentric sleeve 53.

[0080] The first housing 11 is provided with a refrigerant inlet 111 and a low-pressure chamber 112. The drive mechanism 2 is located in the low-pressure chamber 112. The refrigerant inlet 111 is connected to the low-pressure chamber 112, and the low-pressure chamber 112 is connected to the air intake of the compression chamber 33. The second housing 12 is located on the side of the stationary scroll 32 away from the moving scroll 31. The second housing 12 is provided with a high-pressure chamber 121. The stationary scroll 32 is provided with an exhaust port 321 connected to the high-pressure chamber 121. The second housing 12 is also provided with a refrigerant outlet 122 connected to the high-pressure chamber 121. The refrigerant in the compression chamber 33 can enter the high-pressure chamber 121 through the exhaust port 321 and then be discharged through the refrigerant outlet 122.

[0081] When the horizontal scroll compressor 100 is working, the stator 21 drives the crankshaft 5 to rotate through the rotor 22. The crankshaft 5 drives the moving scroll 31 to rotate and translate relative to the stationary scroll 32 through the eccentric sleeve 53, so that the refrigerant can be compressed in the compression chamber 33. The refrigerant in the external working circuit is drawn into the low-pressure chamber 112 through the refrigerant inlet 111, and then into the compression chamber 33 through the suction port for compression. The compressed high-pressure refrigerant enters the high-pressure chamber 121 through the exhaust port 321, and then is discharged through the refrigerant outlet 122.

[0082] The compression chamber 33 discharges a mixture of refrigerant and refrigeration oil through the exhaust port 321. The high-pressure chamber 121 is equipped with an oil separator 123. The mixture of refrigerant and refrigeration oil is separated into oil and gas under the action of the oil separator 123. The separated refrigerant is suitable for discharge through the refrigerant outlet 122, and the separated refrigeration oil enters the oil storage tank 124 of the high-pressure chamber 121.

[0083] A back pressure chamber 41 is provided between the moving scroll 31 and the support 4. A groove is provided on the side of the support 4 facing the moving scroll 31. The moving scroll 31 covers the groove on the support 4 to define the back pressure chamber 41. The cover plate 6 is provided with a clearance area corresponding to the back pressure chamber 41 so that the gas in the back pressure chamber 41 can act on the moving scroll 31.

[0084] A return oil groove 42 is also provided on the side of the support 4 facing the moving scroll 31. The extension direction of the return oil groove 42 is parallel to the radial direction of the crankshaft 5, and the return oil groove 42 extends away from the back pressure chamber 41. The return oil groove 42 and the cover plate 6 define a return oil channel. The end plate of the stationary scroll 32 is provided with a throttling element 7. The inlet of the throttling element 7 is connected to the oil storage tank 124, and the outlet of the throttling element 7 is connected to the oil inlet of the return oil channel, so that the refrigeration oil in the oil storage tank 124 can enter the return oil channel through the throttling element 7, and then enter the back pressure chamber 41 through the oil outlet of the return oil channel. By reducing the pressure through the throttling element 7, the pressure in the back pressure chamber 41 can reach the set value.

[0085] In this embodiment of the invention, the width of the oil return groove 42 in the radial direction parallel to the crankshaft 5 is B, and the thickness of the cover plate 6 is T. The thickness T of the cover plate 6 is 1mm, and the width B of the oil return groove 42 is 5mm.

[0086] A friction-reducing layer is provided on the side of the cover plate 6 facing the moving scroll 31. The hardness of the friction-reducing layer is greater than the hardness of the cover plate 6. The friction-reducing layer is a plating layer applied to the cover plate 6. The thickness C of the friction-reducing layer is 0.1 mm.

[0087] Other configurations of the horizontal scroll compressor 100 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0088] The air conditioner according to an embodiment of the present invention includes: the horizontal scroll compressor 100 described above.

[0089] According to the embodiment of the present invention, the horizontal scroll compressor 100 of the air conditioner limits the range of the width B of the oil return groove 42 by limiting the range of the ratio of the width B of the oil return groove 42 to the thickness T of the cover plate 6, thereby reducing the risk of local deformation of the cover plate 6, improving the stress concentration problem of the cover plate 6, extending the service life of the horizontal scroll compressor 100, and ensuring the reliability of the vehicle thermal management system.

[0090] The vehicle according to the present invention includes the air conditioner in the above technical solution, or includes the horizontal scroll compressor 100 in the above technical solution.

[0091] According to the vehicle of this utility model embodiment, the horizontal scroll compressor 100 limits the range of the width B of the oil return groove 42 by limiting the range of the ratio of the width B of the oil return groove 42 to the thickness T of the cover plate 6, thereby reducing the risk of local deformation of the cover plate 6, improving the problem of stress concentration of the cover plate 6, extending the service life of the horizontal scroll compressor 100, and ensuring the reliability of the vehicle thermal management system.

[0092] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0093] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A horizontal scroll compressor for a vehicle, characterized by, include: The housing is provided with a bracket for supporting the crankshaft, and the housing is provided with a high-pressure chamber; A compression component, comprising a moving scroll and a stationary scroll that engage in a meshing process, a crankshaft connected to the moving scroll for driving the moving scroll to rotate, the stationary scroll having an exhaust port communicating with the high-pressure chamber, and a back pressure chamber being provided between the bracket and the moving scroll. The support has an oil return groove on the side facing the moving scroll. A cover plate is provided on the open side of the oil return groove to define an oil return channel. The oil return channel communicates with both the high-pressure chamber and the back-pressure chamber. The moving scroll slides in conjunction with both the support and the cover plate. The cover plate has a thickness of T, and the width of the oil return groove in the radial direction parallel to the crankshaft is B. satisfy: .

2. The horizontal scroll compressor for a vehicle according to claim 1, characterized by, T satisfies: 0.2mm≤T≤2mm.

3. The horizontal scroll compressor for a vehicle according to claim 1, wherein The cover plate has a wear-reducing layer on the side facing the moving scroll, and the hardness of the wear-reducing layer is greater than that of the cover plate.

4. The horizontal scroll compressor for vehicles according to claim 3, characterized in that, The thickness of the friction-reducing layer is C, the thickness of the cover plate is T, satisfies: 0.025 ≤ ≤ 0.

75.

5. The horizontal scroll compressor for a vehicle according to claim 1, wherein The housing includes a refrigerant inlet, a refrigerant outlet, and a low-pressure chamber. The low-pressure chamber and the high-pressure chamber are distributed on both sides of the compression component. The refrigerant inlet is connected to the low-pressure chamber, and the refrigerant outlet is connected to the high-pressure chamber. A compression chamber is defined between the moving scroll and the stationary scroll. The intake port of the compression chamber is connected to the low-pressure chamber, and the exhaust port of the compression chamber is connected to the high-pressure chamber. A drive mechanism is provided inside the low-pressure chamber, and the drive mechanism is connected to the crankshaft to drive the crankshaft to rotate. The oil outlet of the oil return channel is connected to the back pressure chamber. The stationary vortex disk is equipped with a throttling element. The inlet of the throttling element is connected to the high pressure chamber, and the outlet of the throttling element is connected to the oil inlet of the oil return channel.

6. The horizontal scroll compressor for vehicles according to any one of claims 1-5, characterized in that, The cover plate has a reinforcing member at least on the portion directly opposite the oil return groove, and the reinforcing member is fixed to the bracket.

7. The horizontal scroll compressor for a vehicle according to claim 6, wherein On the same projection plane parallel to the cross-section of the crankshaft, the orthographic projection of the reinforcing member completely covers the orthographic projection of the oil return groove.

8. The horizontal scroll compressor for a vehicle according to claim 7, wherein The bracket is provided with a placement groove, the edge of the reinforcing member is supported in the placement groove and the rest of the member is positioned opposite the oil return groove.

9. The horizontal scroll compressor for a vehicle according to claim 6, wherein The thickness of the reinforcing member is greater than the thickness of the cover plate.

10. The horizontal scroll compressor for a vehicle according to claim 6, wherein the thickness of the reinforcement is X and the thickness of the cover plate is T, satisfies: 0.5 ≤ ≤ 25.

11. An air conditioner characterized by comprising: include: A horizontal scroll compressor for vehicles according to any one of claims 1-10.

12. A vehicle characterized by comprising: include: The air conditioner according to claim 11; Alternatively, a horizontal scroll compressor for vehicles according to any one of claims 1-10.

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