Piston, compressor and air conditioner

Abstract

The utility model provides a piston, a compressor and an air conditioner. The piston comprises a piston body, the piston body is provided with a first end face and a second end face in the first direction, the piston body is provided with a mounting hole, and the mounting hole penetrates through the first end face and the second end face; and the weight reduction groove set is arranged on the hole wall of the mounting hole, and the first end face and the second end face are arranged at intervals with the weight reduction groove set. The weight reduction groove set is arranged to reduce the weight of the piston, in this way, the deflection of the crankshaft matched with the piston can be reduced, the size and weight of a balance block used for balancing the eccentric torque of the crankshaft can be reduced, the service life of the crankshaft can be prolonged, and the running reliability of the compressor can be guaranteed. And meanwhile, the weight of the piston is reduced, the input power of a motor of the compressor is reduced, and the efficiency of the compressor is improved. In addition, the weight reduction groove set is formed in the hole wall of the piston body, so that the material consumption of the piston can be reduced, and the production cost of the compressor can be reduced.

Description

Technical Field

[0001] This application relates to the field of compressor technology, and more specifically, to a piston, a compressor, and an air conditioner. Background Technology

[0002] A compressor includes a motor, crankshaft, cylinder, and piston. The crankshaft passes through the piston, and the motor drives the crankshaft to move. The crankshaft's movement causes the piston to move, which in turn changes the cylinder volume. In related technologies, the piston's weight is relatively large, resulting in high input power for the motor and affecting the compressor's efficiency. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, the first aspect of this application proposes a piston.

[0005] The second aspect of this application proposes a compressor.

[0006] The third aspect of this application proposes an air conditioner.

[0007] In view of this, this application provides a piston, comprising: a piston body having a first end face and a second end face along a first direction, and a mounting hole penetrating the first end face and the second end face; and a weight-reducing groove assembly disposed on the wall of the mounting hole, with the first end face and the second end face both arranged at intervals from the weight-reducing groove assembly.

[0008] The piston provided in this application includes a piston body and a weight reduction groove assembly.

[0009] Along a first direction, the piston body has a first end face and a second end face. The piston body is provided with a mounting hole that penetrates through the first end face and the second end face. The mounting hole is used to mate with the crankshaft of the compressor; specifically, the crankshaft passes through the mounting hole.

[0010] Furthermore, the weight-reducing groove assembly is disposed on the wall of the mounting hole, with both the first and second end faces spaced apart from it. That is, the first end face is spaced apart from the weight-reducing groove assembly, and the second end face is also spaced apart from it. In other words, the weight-reducing groove assembly is located between the first and second end faces. This arrangement of the weight-reducing groove assembly does not alter the existing structure of the first and second end faces, ensuring the proper fit between either the first or second end face and the crankshaft, thus guaranteeing the effective operation of the compressor.

[0011] The weight of the piston is reduced by arranging the weight-reducing groove group. When the compressor is working, the deflection of the crankshaft matched with the piston is reduced, the volume and weight of the balance block for balancing the eccentric moment of the crankshaft are reduced, the disturbance to the oil pool is reduced after the volume and weight of the balance block are reduced, the oil surface is stabilized, high-frequency noise is reduced, the service life of the crankshaft is prolonged, and the reliability and stability of the compressor during operation are ensured. Meanwhile, the weight of the piston is reduced, the input power of the motor of the compressor is reduced, and the efficiency of the compressor is improved. In addition, the weight-reducing groove group arranged on the hole wall of the piston body can reduce the material consumption of the piston, thereby reducing the production cost of the compressor, and the weight-reducing groove group has the advantages of convenient processing, low processing difficulty and strong operability.

[0012] It can be understood that the weight of the piston is reduced due to the arrangement of the weight-reducing groove group. When the input power of the motor of the compressor is unchanged, the material consumption of the crankshaft can be correspondingly reduced, for example, the material consumption of the part of the crankshaft opposite to the weight-reducing groove group can be reduced, thereby reducing the production cost of the compressor.

[0013] It can be understood that the weight of the piston is reduced due to the arrangement of the weight-reducing groove group. When the material consumption of the crankshaft is unchanged, the input power of the motor of the compressor is reduced, thereby improving the efficiency of the compressor.

[0014] According to the piston provided in the application, the following additional technical features can be further provided.

[0015] In some technical solutions, the weight-reducing groove group comprises: a first weight-reducing groove; and a second weight-reducing groove, the first weight-reducing groove is located between the first end face and the second weight-reducing groove; along the first direction, the width of the part of the piston body between the first weight-reducing groove and the first end face is A1, the width of the part of the piston body between the second weight-reducing groove and the second end face is A2, and A1=A2; the volume of the first weight-reducing groove is equal to the volume of the second weight-reducing groove.

[0016] In this technical solution, the structure of the weight-reducing groove group is further limited.

[0017] The weight-reducing groove group comprises a first weight-reducing groove and a second weight-reducing groove.

[0018] The first weight-reducing groove is located between the first end face and the second weight-reducing groove, that is, the first weight-reducing groove and the second weight-reducing groove are arranged along the first direction. The first weight-reducing groove is closer to the first end face than the second weight-reducing groove, and the second weight-reducing groove is closer to the second end face than the first weight-reducing groove.

[0019] The first weight-reducing groove is arranged apart from the first end face, and along the first direction, the width of the part of the piston body between the first weight-reducing groove and the first end face is A1.

[0020] The second weight-reducing groove is arranged at a distance from the second end face, and along the first direction, the width of the portion of the piston body between the second weight-reducing groove and the second end face is A2.

[0021] A1=A2.

[0022] Meanwhile, the volume of the first weight-reducing groove is equal to the volume of the second weight-reducing groove.

[0023] The arrangement defines the positional relationship between the first weight-reducing groove and the second weight-reducing groove, and defines the volume relationship between the first weight-reducing groove and the second weight-reducing groove. While reducing the weight of the piston, the arrangement balances the arrangement position and volume of the first weight-reducing groove and the second weight-reducing groove, does not change the center of gravity of the piston (i.e., the center of gravity of the piston provided with the weight-reducing groove group is consistent with the center of gravity of the piston without the weight-reducing groove group), avoids the eccentricity of the piston during movement, and provides structural support for ensuring the effectiveness and reliability of the compressor.

[0024] In some technical solutions, optionally, the first weight-reducing groove and the second weight-reducing groove are arranged at a distance along the first direction.

[0025] In this technical solution, the positional relationship between the first weight-reducing groove and the second weight-reducing groove is further defined.

[0026] The first weight-reducing groove and the second weight-reducing groove are arranged at a distance along the first direction. That is, based on A1=A2, and the volume of the first weight-reducing groove is equal to the volume of the second weight-reducing groove, the first weight-reducing groove and the second weight-reducing groove can be arranged at a distance along the first direction.

[0027] In some technical solutions, optionally, at least one of the first weight-reducing groove and the second weight-reducing groove is arranged around the axis of the mounting hole.

[0028] In this technical solution, the structure of the first weight-reducing groove and the second weight-reducing groove is further defined, so that at least one of the first weight-reducing groove and the second weight-reducing groove is arranged around the axis of the mounting hole. That is, the first weight-reducing groove is arranged around the axis of the mounting hole, or the second weight-reducing groove is arranged around the axis of the mounting hole, or both the first weight-reducing groove and the second weight-reducing groove are arranged around the axis of the mounting hole.

[0029] It can be understood that when the first weight-reducing groove is arranged around the axis of the mounting hole, the first weight-reducing groove is arranged on the hole wall of the mounting hole around the circumference of the axis of the mounting hole. Exemplarily, the first weight-reducing groove is an annular groove.

[0030] It can be understood that when the second weight-reducing groove is arranged around the axis of the mounting hole, the second weight-reducing groove is arranged on the hole wall of the mounting hole around the circumference of the axis of the mounting hole. Exemplarily, the first weight-reducing groove is an annular groove.

[0031] In some embodiments, at least one of the first and second weight-reducing grooves comprises a plurality of arc-shaped grooves, and the plurality of arc-shaped grooves are arranged at intervals around the axis of the mounting hole.

[0032] In some embodiments, at least one of the first and second weight-reducing grooves comprises a plurality of arc-shaped grooves, and the plurality of arc-shaped grooves are arranged at intervals around the axis of the mounting hole.

[0033] It can be understood that when the first weight-reducing groove comprises a plurality of arc-shaped grooves, the plurality of arc-shaped grooves are arranged at intervals around the axis of the mounting hole.

[0034] It can be understood that when the second weight-reducing groove comprises a plurality of arc-shaped grooves, the plurality of arc-shaped grooves are arranged at intervals around the axis of the mounting hole.

[0035] In some embodiments, the first and second weight-reducing grooves are connected, and the first and second weight-reducing grooves extend in a spiral shape.

[0036] In some embodiments, the first and second weight-reducing grooves are connected, and the first and second weight-reducing grooves extend in a spiral shape.

[0037] In some embodiments, in the first direction, the maximum width of any one of the first and second weight-reducing grooves is B; and 2mm≤A1≤3mm, 2mm≤B≤4mm.

[0038] In some embodiments, the structure of the first and second weight-reducing grooves is further limited.

[0039] In the first direction, the maximum width of the first weight-reducing groove is B, and the width of the part of the piston body between the first weight-reducing groove and the first end face is A1.

[0040] 2mm≤A1≤3mm, which can ensure the size of the part of the piston body between the first weight-reducing groove and the first end face, and can ensure that the crankshaft effectively drives the piston to move.

[0041] If A1<2mm, the width of the part of the piston body between the first weight-reducing groove and the first end face is too small, the structural strength and rigidity of this part are low, which will affect the stability of the crankshaft driving the piston to move.

[0042] If A1>3mm, the processing difficulty will be increased, and the processing cost will be increased.

[0043] wherein 2mm≤B≤4mm, the setting takes into account the volume of the first lightening groove and the structural strength and rigidity of the piston body.

[0044] If B<2mm, the volume of the first lightening groove is too small, and the lightening effect is poor.

[0045] If B>4mm, the structural strength and rigidity of the piston body will be reduced, which will affect the stability of the movement of the piston driven by the crankshaft.

[0046] Along the first direction, the maximum width of the second lightening groove is denoted as B, and the width of the part of the piston body between the second lightening groove and the second end face is denoted as A2.

[0047] wherein 2mm≤A2≤3mm, the setting can ensure the size of the part of the piston body that cooperates with the crankshaft, and can ensure that the crankshaft effectively drives the movement of the piston.

[0048] If A2<2mm, the width of the part of the piston body between the second lightening groove and the second end face is too small, and the structural strength and rigidity of this part are low, which will affect the stability of the movement of the piston driven by the crankshaft.

[0049] If A2>3mm, the processing difficulty will be increased, and the processing cost will be increased.

[0050] wherein 2mm≤B≤4mm, the setting takes into account the volume of the second lightening groove and the structural strength and rigidity of the piston body.

[0051] If B<2mm, the volume of the second lightening groove is too small, and the lightening effect is poor.

[0052] If B>4mm, the structural strength and rigidity of the piston body will be reduced, which will affect the stability of the movement of the piston driven by the crankshaft.

[0053] In some technical solutions, optionally, the lightening groove group is arranged spaced apart from the outer circumferential surface of the piston body; along the second direction, the width of the part of the piston body between the lightening groove group and the outer circumferential surface of the piston body is C, wherein C≥2mm.

[0054] In this technical solution, the arrangement position of the lightening groove group is further limited.

[0055] The lightening groove group is arranged spaced apart from the outer circumferential surface of the piston body. Exemplarily, along the second direction, the width of the part of the piston body between the lightening groove group and the outer circumferential surface of the piston body is C, wherein C≥2mm. This setting can ensure the structural strength and rigidity of the part of the piston body provided with the lightening groove group, and ensure the stability and reliability of the movement of the piston driven by the crankshaft.

[0056] In some embodiments, optionally, in the longitudinal section of the piston body, the profile line of any one of the first lightening groove and the second lightening groove comprises an arc segment and / or a polyline segment, and the axis of the mounting hole is on the longitudinal section of the piston body.

[0057] In this embodiment, the shape of the first lightening groove and the second lightening groove is further defined.

[0058] In the longitudinal section of the piston body, the profile line of the first lightening groove comprises an arc segment and / or a polyline segment, and the axis of the mounting hole is on the longitudinal section of the piston body.

[0059] In the longitudinal section of the piston body, the profile line of the second lightening groove comprises an arc segment and / or a polyline segment, and the axis of the mounting hole is on the longitudinal section of the piston body.

[0060] Exemplarily, in the longitudinal section of the piston body, the profile line of the first lightening groove is an arc line, or the profile line of the first lightening groove is a groove shape, or the profile line of the first lightening groove is an angle shape, and the like, which are not listed one by one. Wherein, the polyline segment comprises equal to or more than two straight line segments, such as the polyline segment comprises three straight line segments, such as the polyline segment comprises four straight line segments, such as the polyline segment comprises five straight line segments, which are not listed one by one.

[0061] Exemplarily, in the longitudinal section of the piston body, the profile line of the second lightening groove is an arc line, or the profile line of the second lightening groove is a groove shape, or the profile line of the second lightening groove is an angle shape, and the like, which are not listed one by one. Wherein, the polyline segment comprises equal to or more than two straight line segments, such as the polyline segment comprises three straight line segments, such as the polyline segment comprises four straight line segments, such as the polyline segment comprises five straight line segments, which are not listed one by one.

[0062] Exemplarily, in the longitudinal section of the piston body, the profile line of the first lightening groove is the same as the profile line of the second lightening groove.

[0063] Exemplarily, in the longitudinal section of the piston body, the profile line of the first lightening groove is different from the profile line of the second lightening groove.

[0064] In some embodiments, optionally, the number of the first lightening grooves and the second lightening grooves is equal and both is multiple; along the first direction, the multiple first lightening grooves are arranged at intervals, and the multiple second lightening grooves are arranged at intervals.

[0065] In this embodiment, the number and arrangement position of the first lightening grooves and the second lightening grooves are further defined.

[0066] The number of the first lightening grooves and the second lightening grooves is equal and both is multiple. For example, the number of the first lightening grooves and the second lightening grooves is both two. For example, the number of the first lightening grooves and the second lightening grooves is both three.

[0067] The plurality of first weight-reducing grooves are arranged at intervals along the first direction.

[0068] The plurality of second weight-reducing grooves are arranged at intervals along the first direction.

[0069] It can be understood that the plurality means greater than or equal to two.

[0070] The second aspect of the present application provides a compressor, comprising the piston in the first aspect.

[0071] The compressor provided by the present application has all the beneficial effects of the piston described above, and thus, the beneficial effects are not described one by one.

[0072] The third aspect of the present application provides an air conditioner, comprising the compressor in the second aspect.

[0073] The air conditioner provided by the present application has all the beneficial effects of the compressor described above, and thus, the beneficial effects are not described one by one.

[0074] Additional aspects and advantages of the present application will become apparent from the following description with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0075] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings in which:

[0076] Figure 1 Part structure schematic diagram of a piston of a first embodiment of the present application is shown;

[0077] Figure 2 Part structure schematic diagram of a piston of a second embodiment of the present application is shown;

[0078] Figure 3 Part structure schematic diagram of a piston of a third embodiment of the present application is shown.

[0079] Wherein, Figures 1 to 3 The correspondence between the reference signs in the drawings and the component names is as follows:

[0080] 10 piston, 100 piston body, 110 first end face, 120 second end face, 130 mounting hole, 132 axis of the mounting hole, 140 outer peripheral surface of the piston body, 150 longitudinal section of the piston body, 200 weight-reducing groove group, 210 first weight-reducing groove, 220 second weight-reducing groove, 230 arc-shaped groove. DETAILED DESCRIPTION

[0081] In order to enable a clearer understanding of the above-mentioned objects, features and advantages of the present application, the present application will be further described below in conjunction with the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0082] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present application, however, the present application can also be implemented in other manners different from those described herein, and therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0083] The following refers to Figures 1 to 3 The piston 10, the compressor and the air conditioner of some embodiments of the present application are described.

[0084] As Figure 1 , Figure 2 and Figure 3 A piston 10 according to some embodiments of the present application comprises a piston body 100 and a set of weight-reducing grooves 200.

[0085] In a first direction, the piston body 100 has a first end face 110 and a second end face 120.

[0086] The piston body 100 is provided with a mounting hole 130.

[0087] The mounting hole 130 penetrates the first end face 110 and the second end face 120.

[0088] The set of weight-reducing grooves 200 is arranged on the hole wall of the mounting hole 130.

[0089] The first end face 110 and the second end face 120 are both spaced apart from the set of weight-reducing grooves 200.

[0090] A piston 10 according to some embodiments of the present application comprises a piston body 100 and a set of weight-reducing grooves 200.

[0091] In a first direction, the piston body 100 has a first end face 110 and a second end face 120. The piston body 100 is provided with a mounting hole 130, and the mounting hole 130 penetrates the first end face 110 and the second end face 120. The mounting hole 130 is used for cooperating with a crankshaft of a compressor, specifically, the crankshaft is inserted into the mounting hole 130.

[0092] Further, the weight-reducing groove set 200 is arranged on the hole wall of the mounting hole 130, and the first end face 110 and the second end face 120 are arranged in a spaced manner with the weight-reducing groove set 200, that is, the first end face 110 is arranged in a spaced manner with the weight-reducing groove set 200, and the second end face 120 is arranged in a spaced manner with the weight-reducing groove set 200, or in other words, the weight-reducing groove set 200 is located between the first end face 110 and the second end face 120. The arrangement of the weight-reducing groove set 200 does not change the existing structure of the first end face 110 and the second end face 120, and can ensure the cooperation size between any one of the first end face 110 and the second end face 120 and the crankshaft, thereby ensuring the effective operation of the compressor.

[0093] The weight-reducing groove set 200 is arranged to reduce the weight of the piston 10. During the operation of the compressor, the deflection of the crankshaft cooperating with the piston 10 is reduced, the volume and weight of the balance block for balancing the eccentric moment of the crankshaft are reduced, the disturbance to the oil pool is reduced after the volume and weight of the balance block are reduced, the oil surface is stabilized, high-frequency noise is reduced, the service life of the crankshaft is prolonged, and the reliability and stability of the compressor during operation are ensured. At the same time, the weight of the piston 10 is reduced, the input power of the motor of the compressor is reduced, and the efficiency of the compressor is improved. In addition, the weight-reducing groove set 200 is arranged on the hole wall of the piston body 100, the material consumption of the piston 10 is reduced, the production cost of the compressor is reduced, and the weight-reducing groove set 200 is arranged at a position which is convenient to process, has low processing difficulty, and is easy to operate.

[0094] It can be understood that the weight-reducing groove set 200 is arranged on the piston 10, thereby reducing the weight of the piston 10. When the input power of the motor of the compressor is unchanged, the material consumption of the crankshaft can be correspondingly reduced, for example, the material consumption of the part of the crankshaft opposite to the weight-reducing groove set 200 can be reduced, thereby reducing the production cost of the compressor.

[0095] It can be understood that the weight-reducing groove set 200 is arranged on the piston 10, thereby reducing the weight of the piston 10. When the material consumption of the crankshaft is unchanged, the input power of the motor of the compressor is reduced, thereby improving the efficiency of the compressor.

[0096] The embodiment provides a piston 10, in addition to the technical features of the above-mentioned embodiments, the embodiment further includes the following technical features, as shown in Figure 1 , Figure 2 and Figure 3 The weight-reducing groove set 200 includes a first weight-reducing groove 210 and a second weight-reducing groove 220.

[0097] The first weight-reducing groove 210 is located between the first end face 110 and the second weight-reducing groove 220.

[0098] AsFigure 3 As shown, along the first direction, the width of the portion of the piston body 100 between the first lightening groove 210 and the first end face 110 is A1.

[0099] As shown, the width of the portion of the piston body 100 between the second lightening groove 220 and the second end face 120 is A2. Figure 3

[0100] A1 = A2.

[0101] The volume of the first lightening groove 210 is equal to the volume of the second lightening groove 220.

[0102] In this embodiment, the structure of the lightening groove set 200 is further defined.

[0103] The lightening groove set 200 comprises the first lightening groove 210 and the second lightening groove 220.

[0104] The first lightening groove 210 is located between the first end face 110 and the second lightening groove 220, that is, the first lightening groove 210 and the second lightening groove 220 are arranged along the first direction. The first lightening groove 210 is closer to the first end face 110 than the second lightening groove 220, and the second lightening groove 220 is closer to the second end face 120 than the first lightening groove 210.

[0105] The first lightening groove 210 is arranged spaced apart from the first end face 110, and along the first direction, the width of the portion of the piston body 100 between the first lightening groove 210 and the first end face 110 is A1.

[0106] The second lightening groove 220 is arranged spaced apart from the second end face 120, and along the first direction, the width of the portion of the piston body 100 between the second lightening groove 220 and the second end face 120 is A2.

[0107] Wherein, A1 = A2.

[0108] At the same time, the volume of the first lightening groove 210 is equal to the volume of the second lightening groove 220.

[0109] This arrangement defines the arrangement position relationship of the first lightening groove 210 and the second lightening groove 220, and defines the volume relationship of the first lightening groove 210 and the second lightening groove 220. While reducing the weight of the piston 10, the arrangement position and volume of the first lightening groove 210 and the second lightening groove 220 are balanced, the center of gravity of the piston 10 is not changed (that is, the center of gravity of the piston 10 provided with the lightening groove set 200 is consistent with the center of gravity of the piston 10 without the lightening groove set 200), and the eccentricity of the piston 10 during movement is avoided, thereby providing structural support for ensuring the effectiveness and reliability of the compressor.

[0110] ​The embodiment provides a piston 10, in addition to the technical features of the above-mentioned embodiments, further comprising the following technical features, as shown in Figure 1 , Figure 2 and Figure 3 The first weight-reducing groove 210 and the second weight-reducing groove 220 are arranged at intervals along the first direction.

[0111] In this embodiment, the positional relationship between the first weight-reducing groove 210 and the second weight-reducing groove 220 is further limited.

[0112] The first weight-reducing groove 210 and the second weight-reducing groove 220 are arranged at intervals along the first direction. That is, based on A1=A2, and the volume of the first weight-reducing groove 210 is equal to the volume of the second weight-reducing groove 220, the first weight-reducing groove 210 and the second weight-reducing groove 220 can be arranged at intervals along the first direction.

[0113] The embodiment provides a piston 10, in addition to the technical features of the above-mentioned embodiments, further comprising the following technical features, at least one of the first weight-reducing groove 210 and the second weight-reducing groove 220 is arranged around the axis 132 of the mounting hole.

[0114] In this embodiment, the structure of the first weight-reducing groove 210 and the second weight-reducing groove 220 is further limited, so that at least one of the first weight-reducing groove 210 and the second weight-reducing groove 220 is arranged around the axis 132 of the mounting hole. That is, the first weight-reducing groove 210 is arranged around the axis 132 of the mounting hole, or the second weight-reducing groove 220 is arranged around the axis 132 of the mounting hole, or both the first weight-reducing groove 210 and the second weight-reducing groove 220 are arranged around the axis 132 of the mounting hole.

[0115] It can be understood that when the first weight-reducing groove 210 is arranged around the axis 132 of the mounting hole, the first weight-reducing groove 210 is arranged on the hole wall of the mounting hole 130 around the circumference of the axis 132 of the mounting hole. Exemplarily, the first weight-reducing groove 210 is an annular groove.

[0116] It can be understood that when the second weight-reducing groove 220 is arranged around the axis 132 of the mounting hole, the second weight-reducing groove 220 is arranged on the hole wall of the mounting hole 130 around the circumference of the axis 132 of the mounting hole. Exemplarily, the first weight-reducing groove 210 is an annular groove.

[0117] The embodiment provides a piston 10, in addition to the technical features of the above-mentioned embodiments, further comprising the following technical features, as shown in Figure 2 At least one of the first weight-reducing groove 210 and the second weight-reducing groove 220 comprises a plurality of arc-shaped grooves 230.

[0118] The plurality of arc-shaped grooves 230 are arranged at intervals around the axis 132 of the mounting hole.

[0119] In this embodiment, the structure of the first weight-reducing groove 210 and the second weight-reducing groove 220 is further defined such that at least one of the first weight-reducing groove 210 and the second weight-reducing groove 220 comprises a plurality of arc-shaped grooves 230. That is, the first weight-reducing groove 210 comprises a plurality of arc-shaped grooves 230, or the second weight-reducing groove 220 comprises a plurality of arc-shaped grooves 230, or both the first weight-reducing groove 210 and the second weight-reducing groove 220 comprise a plurality of arc-shaped grooves 230.

[0120] It can be understood that when the first weight-reducing groove 210 comprises a plurality of arc-shaped grooves 230, the plurality of arc-shaped grooves 230 are arranged at intervals around the axis 132 of the mounting hole.

[0121] It can be understood that when the second weight-reducing groove 220 comprises a plurality of arc-shaped grooves 230, the plurality of arc-shaped grooves 230 are arranged at intervals around the axis 132 of the mounting hole.

[0122] The present embodiment provides a piston 10, in addition to the technical features of the above-mentioned embodiments, further comprising the following technical features: the first weight-reducing groove 210 and the second weight-reducing groove 220 are connected, and the first weight-reducing groove 210 and the second weight-reducing groove 220 extend in a spiral shape.

[0123] In this embodiment, the structure of the first weight-reducing groove 210 and the second weight-reducing groove 220 is further defined such that the first weight-reducing groove 210 and the second weight-reducing groove 220 are connected, and the first weight-reducing groove 210 and the second weight-reducing groove 220 extend in a spiral shape. The first weight-reducing groove 210 and the second weight-reducing groove 220 can be enclosed to form a spiral-shaped groove. This arrangement is based on the condition that A1=A2, and the volume of the first weight-reducing groove 210 is equal to the volume of the second weight-reducing groove 220, and the first weight-reducing groove 210 and the second weight-reducing groove 220 are enclosed to form a spiral-shaped groove.

[0124] The present embodiment provides a piston 10, in addition to the technical features of the above-mentioned embodiments, further comprising the following technical features: as shown in Figure 1 , Figure 2 and Figure 3 , in the first direction, the maximum width of any one of the first weight-reducing groove 210 and the second weight-reducing groove 220 is B; wherein 2mm≤A1≤3mm, 2mm≤B≤4mm.

[0125] In this embodiment, the structure of the first weight-reducing groove 210 and the second weight-reducing groove 220 is further defined.

[0126] In the first direction, the maximum width of the first weight-reducing groove 210 is denoted as B, and the width of the portion of the piston body 100 between the first weight-reducing groove 210 and the first end face 110 is denoted as A1.

[0127] Among them, 2mm≤A1≤3mm, this setting can ensure the size of the mating part between the piston body 100 and the crankshaft, and can ensure that the crankshaft can effectively drive the piston 10 to move.

[0128] If A1 < 2mm, then the width of the portion of the piston body 100 located between the first weight reduction groove 210 and the first end face 110 is too small. The structural strength and rigidity at this location are low, which will affect the stability of the crankshaft driving the piston 10 to move.

[0129] Examples include A1 = 2.2mm, A1 = 2.4mm, A1 = 2.5mm, A1 = 2.6mm, and A1 = 2.8mm, etc., which will not be listed here one by one.

[0130] Among them, 2mm≤B≤4mm, this setting takes into account both the volume of the first weight reduction groove 210 and the structural strength and rigidity of the piston body 100.

[0131] If B < 2mm, then the volume of the first weight-reducing groove 210 is too small, resulting in poor weight-reducing effect.

[0132] If B > 4 mm, it will reduce the structural strength and rigidity of the piston body 100, and affect the stability of the crankshaft driving the piston 10 to move.

[0133] Examples include B=2.2mm, B=2.5mm, B=2.8mm, B=3mm, B=3.1mm, B=3.4mm, B=3.5mm, and B=3.8mm, etc., which will not be listed here one by one.

[0134] Along the first direction, the maximum width of the second weight-reducing groove 220 is denoted as B, and the width of the portion of the piston body 100 located between the second weight-reducing groove 220 and the second end face 120 is denoted as A2.

[0135] Among them, 2mm≤A2≤3mm, this setting can ensure the size of the mating part between the piston body 100 and the crankshaft, and can ensure that the crankshaft can effectively drive the piston 10 to move.

[0136] If A2 < 2mm, then the width of the portion of the piston body 100 located between the second weight reduction groove 220 and the second end face 120 is too small. The structural strength and rigidity at this location are low, which will affect the stability of the crankshaft driving the piston 10 to move.

[0137] Examples include A2 = 2.2mm, A2 = 2.4mm, A2 = 2.5mm, A2 = 2.6mm, and A2 = 2.8mm, etc., which will not be listed here.

[0138] Among them, 2mm≤B≤4mm, this setting takes into account both the volume of the second weight reduction groove 220 and the structural strength and rigidity of the piston body 100.

[0139] If B < 2mm, the volume of the second weight-reducing groove 220 is too small, and the weight-reducing effect is poor.

[0140] If B > 4mm, the structural strength and rigidity of the piston body 100 will be reduced, and the stability of the piston 10 when driven by the crankshaft will be affected.

[0141] Exemplarily, B = 2.2mm, B = 2.5mm, B = 2.8mm, B = 3mm, B = 3.1mm, B = 3.4mm, B = 3.5mm, and B = 3.8mm, and the like, which are not listed one by one here.

[0142] The embodiment provides a piston 10, in addition to the technical features of the above-mentioned embodiments, further comprising the following technical features: the weight-reducing groove set 200 is arranged spaced apart from the outer circumferential surface 140 of the piston body.

[0143] As shown in Figure 1 , Figure 2 and Figure 3 , along the second direction, the width of the part of the piston body 100 between the weight-reducing groove set 200 and the outer circumferential surface 140 of the piston body is C, wherein C ≥ 2mm.

[0144] In this embodiment, the setting position of the weight-reducing groove set 200 is further limited.

[0145] The weight-reducing groove set 200 is arranged spaced apart from the outer circumferential surface 140 of the piston body. Exemplarily, along the second direction, the width of the part of the piston body 100 between the weight-reducing groove set 200 and the outer circumferential surface 140 of the piston body is C, wherein C ≥ 2mm. This setting can ensure the structural strength and rigidity of the part of the piston body 100 provided with the weight-reducing groove set 200, and ensure the stability and reliability of the piston 10 when driven by the crankshaft.

[0146] Exemplarily, C = 2.2mm, C = 2.3mm, C = 2.5mm, C = 2.8mm, C = 3mm, C = 3.3mm, C = 3.5mm, C = 3.8mm, and C = 4mm, and the like, which are not listed one by one here.

[0147] The embodiment provides a piston 10, in addition to the technical features of the above-mentioned embodiments, further comprising the following technical features: as shown in Figure 1 , Figure 2 and Figure 3 , in the longitudinal section 150 of the piston body, the profile line of any one of the first weight-reducing groove 210 and the second weight-reducing groove 220 comprises an arc segment and / or a polyline segment, and the axis 132 of the mounting hole is on the longitudinal section 150 of the piston body.

[0148] In this embodiment, the shape of the first lightening groove 210 and the second lightening groove 220 is further defined.

[0149] In the longitudinal section 150 of the piston body, the profile line of the first lightening groove 210 comprises an arcuate segment and / or a polygonal segment, the axis 132 of the mounting hole being on the longitudinal section 150 of the piston body.

[0150] In the longitudinal section 150 of the piston body, the profile line of the second lightening groove 220 comprises an arcuate segment and / or a polygonal segment, the axis 132 of the mounting hole being on the longitudinal section 150 of the piston body.

[0151] Exemplarily, as shown in Figure 2 , in the longitudinal section 150 of the piston body, the profile line of the first lightening groove 210 is an arcuate line.

[0152] Exemplarily, as shown in Figure 1 , in the longitudinal section 150 of the piston body, the profile line of the first lightening groove 210 is a slot shape.

[0153] Exemplarily, as shown in Figure 3 , in the longitudinal section 150 of the piston body, the profile line of the first lightening groove 210 is an angular shape.

[0154] wherein the polygonal segment comprises more than equal to two straight line segments, such as the polygonal segment comprises three straight line segments, such as the polygonal segment comprises four straight line segments, such as the polygonal segment comprises five straight line segments, and so on, which are not listed one by one here.

[0155] Exemplarily, in the longitudinal section 150 of the piston body, the profile line of the second lightening groove 220 is an arcuate line.

[0156] Exemplarily, as shown in Figure 1 and Figure 2 , in the longitudinal section 150 of the piston body, the profile line of the second lightening groove 220 is a slot shape.

[0157] Exemplarily, as shown in Figure 3 , in the longitudinal section 150 of the piston body, the profile line of the second lightening groove 220 is an angular shape.

[0158] wherein the polygonal segment comprises more than equal to two straight line segments, such as the polygonal segment comprises three straight line segments, such as the polygonal segment comprises four straight line segments, such as the polygonal segment comprises five straight line segments, and so on, which are not listed one by one here.

[0159] Exemplarily, as shown in Figure 1 and Figure 3 , in the longitudinal section 150 of the piston body, the profile line of the first lightening groove 210 is the same as the profile line of the second lightening groove 220.

[0160] Exemplarily, as shown inFigure 2 As shown, in the longitudinal section 150 of the piston body, the profile line of the first lightening groove 210 is different in shape from the profile line of the second lightening groove 220.

[0161] The piston 10 of the present embodiment further comprises the following technical features in addition to the technical features of the above-mentioned embodiments. The number of the first lightening groove 210 and the number of the second lightening groove 220 are equal and both are plural.

[0162] Along the first direction, the plurality of first lightening grooves 210 are arranged at intervals.

[0163] In the present embodiment, the number and arrangement position of the first lightening groove 210 and the second lightening groove 220 are further limited.

[0164] The number of the first lightening groove 210 and the number of the second lightening groove 220 are equal and both are plural. For example, the number of the first lightening groove 210 and the number of the second lightening groove 220 are both two. For example, the number of the first lightening groove 210 and the number of the second lightening groove 220 are both three.

[0165] Along the first direction, the plurality of first lightening grooves 210 are arranged at intervals.

[0166] Along the first direction, the plurality of second lightening grooves 220 are arranged at intervals.

[0167] It can be understood that plural means greater than or equal to two.

[0168] According to some embodiments of the present application, a compressor comprises the piston 10 of any of the above-mentioned embodiments.

[0169] The compressor provided by the present application comprises the piston 10 of any of the above-mentioned embodiments, and thus has all the beneficial effects of the piston 10, which will not be repeated here.

[0170] According to some embodiments of the present application, an air conditioner comprises the compressor of any of the above-mentioned embodiments.

[0171] The air conditioner provided by the present application comprises the compressor of any of the above-mentioned embodiments, and thus has all the beneficial effects of the compressor, which will not be repeated here.

[0172] Exemplarily, along the second direction, the distance from the slot opening to the slot bottom of the first lightening groove 210 is greater than or equal to 2 mm and less than or equal to 4 mm.

[0173] Exemplarily, along the second direction, the distance from the slot opening to the slot bottom of the second lightening groove 220 is greater than or equal to 2 mm and less than or equal to 4 mm.

[0174] Exemplarily, the piston 10 is a cylindrical structure, and the weight-reducing groove set 200 is arranged on the inner circumferential surface of the piston 10. The weight-reducing groove set 200 comprises a first weight-reducing groove 210 and a second weight-reducing groove 220.

[0175] By arranging the weight-reducing groove set 200, the weight of the piston 10 is reduced. When the compressor is working, the deflection of the crankshaft matched with the piston 10 is reduced, the volume and weight of the balance block used to balance the eccentric moment of the crankshaft are reduced, the disturbance to the oil pool is reduced after the volume and weight of the balance block are reduced, the oil surface is stabilized, high-frequency noise is reduced, the service life of the crankshaft is prolonged, and the reliability and stability of the compressor during operation are ensured. Meanwhile, the weight of the piston 10 is reduced, the input power of the motor of the compressor is reduced, and the efficiency of the compressor is improved. In addition, by arranging the weight-reducing groove set 200 on the hole wall of the piston body 100, the material consumption of the piston 10 is reduced, the production cost of the compressor is reduced, the arrangement position of the weight-reducing groove set 200 is convenient to process, the processing difficulty is low, and the operability is high.

[0176] In the present application, the term “a plurality of” refers to two or more, unless otherwise explicitly limited. The terms “mounting”, “connected”, “connecting”, “fixed”, and the like should be interpreted broadly, for example, “connected” can be fixed connection, can also be detachable connection, or integrally connected; “connected” can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0177] In the description of the present application, the description of the terms “one embodiment”, “some embodiments”, “a specific embodiment” and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. The above is only the preferred embodiment of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A piston characterized by, Comprising: a piston body having a first end face and a second end face in a first direction, the piston body being provided with a mounting hole penetrating the first end face and the second end face; a set of lightening grooves arranged on a hole wall of the mounting hole, the first end face and the second end face being arranged spaced apart from the set of lightening grooves.

2. The piston of claim 1 wherein, The set of lightening grooves comprises: a first lightening groove; a second lightening groove, the first lightening groove being located between the first end face and the second lightening groove; in the first direction, a width of a portion of the piston body between the first lightening groove and the first end face is A1, a width of a portion of the piston body between the second lightening groove and the second end face is A2, A1=A2; a volume of the first lightening groove is equal to a volume of the second lightening groove.

3. The piston of claim 2 wherein, In the first direction, the first lightening groove and the second lightening groove are arranged spaced apart.

4. The piston of claim 3 wherein, At least one of the first lightening groove and the second lightening groove is arranged around an axis of the mounting hole.

5. The piston of claim 3 wherein, At least one of the first lightening groove and the second lightening groove comprises a plurality of arc-shaped grooves arranged spaced apart around the axis of the mounting hole.

6. The piston of claim 2 wherein, The first lightening groove and the second lightening groove are connected, and the first lightening groove and the second lightening groove extend in a spiral shape.

7. The piston of any one of claims 2 to 6, wherein, In the first direction, a maximum value of the width of any one of the first lightening groove and the second lightening groove is B; wherein 2mm≤A1≤3mm, 2mm≤B≤4mm.

8. The piston of any one of claims 1 to 6, wherein, The set of lightening grooves is arranged spaced apart from an outer peripheral surface of the piston body; in a second direction, a width of a portion of the piston body between the set of lightening grooves and the outer peripheral surface of the piston body is C, wherein C≥2mm.

9. The piston of any one of claims 2 to 6, wherein, In a longitudinal section of the piston body, a profile line of any one of the first lightening groove and the second lightening groove comprises an arc line segment and / or a broken line segment, and an axis of the mounting hole is on the longitudinal section of the piston body.

10. The piston of any one of claims 2 to 5, wherein, The number of the first lightening groove and the second lightening groove is equal and is a plurality; In the first direction, a plurality of the first lightening grooves are arranged spaced apart, and a plurality of the second lightening grooves are arranged spaced apart.

11. A compressor characterized by, Comprising: The piston according to any one of claims 1 to 10.

12. An air conditioner characterized by comprising: Comprising: The compressor according to claim 11.

Images