Compressor and refrigeration equipment

Abstract

The invention discloses a compressor and refrigeration equipment, and relates to the technical field of compressor structures.The compressor comprises a shell, a crankcase, an air cylinder, a motor, a crankshaft, a shaft sleeve and a supporting assembly, and the crankcase is provided with a mounting shaft hole; the cylinder is arranged on the upper side of the crankcase; the motor is arranged on the lower side of the crankcase, comprises a stator component and a rotor component, and is provided with a via hole; an eccentric part is arranged at the upper end of the crankshaft, the eccentric part is connected with a piston in the air cylinder through a connecting rod, and the lower end of the crankshaft extends out of the lower end of the motor; the shaft sleeve comprises a sleeve body and a supporting plate, a shaft sleeve hole is formed in the sleeve body and is in interference fit with the lower end of the crankshaft, the supporting plate is located at the lower end of the motor and connected with the rotor component, and the lower end of the sleeve body exceeds the lower side of the supporting plate. The supporting assembly comprises a supporting column, a lining and a spring, and the bottom of the lining is supported at the bottom of the shell. The invention aims to reduce the structural height of the compressor.

Description

Technical Field

[0001] The present invention relates to the technical field of compressor structures, and in particular to a compressor and a refrigeration device. Background Art

[0002] Reciprocating compressors are widely used in household or commercial refrigerators and freezers because of their high compression efficiency and ability to provide considerable refrigeration capacity at low energy consumption. When designing refrigerators and freezers, the impact of the overall height of the compressor needs to be fully considered. The overall height of the compressor will actually affect the design of the internal structure of the refrigerator, and further affect the volume ratio of the refrigerator and the economic benefits of the whole machine. Therefore, when designing the compressor, the overall height should be reduced as much as possible while ensuring performance. Summary of the invention

[0003] The main purpose of the present invention is to provide a compressor and a refrigeration device, aiming to reduce the structural height of the compressor.

[0004] To achieve the above object, the present invention provides a compressor, wherein the compressor comprises:

[0005] case;

[0006] A crankcase is disposed in the housing, and the crankcase is provided with a mounting shaft hole that passes through the crankcase from top to bottom;

[0007] a cylinder located in the housing and disposed on an upper side of the crankcase;

[0008] A motor, located in the housing and arranged at the lower side of the crankcase, the motor comprising a stator component and a rotor component, and the motor is provided with through holes arranged through the upper and lower ends thereof;

[0009] A crankshaft is located in the housing and rotatably cooperates with the mounting shaft hole, an eccentric portion is provided at the upper end of the crankshaft, the eccentric portion is connected to the piston in the cylinder through a connecting rod, and the lower end of the crankshaft extends from the lower end of the motor through the through hole;

[0010] A sleeve, comprising a sleeve body and a support plate, wherein the sleeve body is provided with a sleeve hole penetrating through the upper and lower ends thereof, the sleeve hole is interference fit with the lower end of the crankshaft, the support plate is arranged on the outer side of the sleeve body, the support plate is located at the lower end of the motor and is connected to the rotor component, the lower end of the sleeve body is arranged beyond the lower side of the support plate to form a lower sleeve section beyond the lower side of the support plate, the lower end of the lower sleeve section is spaced from the bottom of the housing; and,

[0011] A support assembly is located in the shell, and the support assembly includes a support column, a bushing and a spring. The support column is fixed to the bottom of the shell, the bushing is sleeved on the support column, and the bottom of the bushing is supported by the bottom of the shell, the upper end of the spring is installed on the motor and / or the crankcase, and the lower end of the spring is sleeved on the outer periphery of the bushing.

[0012] In one embodiment, the upper end of the sleeve body is disposed beyond the upper side of the support plate to form an upper sleeve section that exceeds the upper side of the support plate, and the upper sleeve section extends into the through hole.

[0013] In one embodiment, the length of the lower sleeve section is greater than or equal to the length of the upper sleeve section.

[0014] In one embodiment, the length of the sleeve is A, then A≥13.5 mm; and / or,

[0015] The thickness of the support plate is B, then 1.5 mm ≤ B ≤ 3 mm.

[0016] In one embodiment, the crankshaft includes a first matching section and a second matching section distributed in the up-down direction, the first matching section is clearance-matched with the mounting shaft hole, and the second matching section is interference-fitted with the shaft sleeve;

[0017] Wherein, the outer diameter of the second fitting segment is greater than the outer diameter of the first fitting segment, and the outer diameter of the second fitting segment is smaller than the inner diameter of the mounting shaft hole.

[0018] In one embodiment, the compressor further includes a high-pressure chamber assembly, which includes a silencer bag and an inner row of pipes, wherein the inner row of pipes is used to connect the silencer bag with the cylinder, and the spacing between the silencer bag and the crankcase and / or the casing is C, C≥3mm.

[0019] In one embodiment, a slot is formed at the lower end of the crankshaft, and the compressor further comprises an oil pump, wherein the oil pump is at least partially embedded in the slot:

[0020] The housing contains lubricating oil, the lower end of the oil pump extends into the lubricating oil, and the depth of the lower end of the oil pump extending into the lubricating oil is D, then D≥10mm; and / or,

[0021] The distance between the lower end surface of the support plate and the liquid level of the lubricating oil is E, and E≥5.5mm.

[0022] In one embodiment, a receiving groove is provided at the bottom of the housing, the support column is fixed to the bottom of the receiving groove, and the bottom of the bushing is at least partially embedded in the receiving groove, so that the bottom of the bushing is supported by the bottom of the receiving groove;

[0023] Wherein, the depth of the accommodation groove is F, then 1.5mm≤F≤2mm; and / or,

[0024] The length of the bushing is G, then G≤11mm.

[0025] In one embodiment, the compressor further comprises a base, the base comprises a support leg, one end of the support leg is connected to the bottom of the shell, the other end of the support leg extends to the outside of the shell, and a buffer pad is provided at the bottom of the support leg;

[0026] The bottom lower side surface of the shell is located at a position corresponding to the support assembly, is lower than the upper end surface of the buffer pad, and is higher than the lower end surface of the buffer pad.

[0027] In one embodiment, the distance from the top end surface of the shell to the bottom end surface of the buffer pad is H, and H≤110 mm.

[0028] The present invention further provides a refrigeration device, wherein the refrigeration device comprises a compressor, and the compressor comprises:

[0029] case;

[0030] A crankcase is disposed in the housing, and the crankcase is provided with a mounting shaft hole that passes through the crankcase from top to bottom;

[0031] a cylinder located in the housing and disposed on an upper side of the crankcase;

[0032] A motor, located in the housing and arranged at the lower side of the crankcase, the motor comprising a stator component and a rotor component, and the motor is provided with through holes arranged through the upper and lower ends thereof;

[0033] A crankshaft is located in the housing and rotatably cooperates with the mounting shaft hole, an eccentric portion is provided at the upper end of the crankshaft, the eccentric portion is connected to the piston in the cylinder through a connecting rod, and the lower end of the crankshaft extends from the lower end of the motor through the through hole;

[0034] A sleeve, comprising a sleeve body and a support plate, wherein the sleeve body is provided with a sleeve hole penetrating through the upper and lower ends thereof, the sleeve hole is interference fit with the lower end of the crankshaft, the support plate is arranged on the outer side of the sleeve body, the support plate is located at the lower end of the motor and is connected to the rotor component, the lower end of the sleeve body is arranged beyond the lower side of the support plate to form a lower sleeve section beyond the lower side of the support plate, the lower end of the lower sleeve section is spaced from the bottom of the housing; and,

[0035] A support assembly is located in the shell, and the support assembly includes a support column, a bushing and a spring. The support column is fixed to the bottom of the shell, the bushing is sleeved on the support column, and the bottom of the bushing is supported by the bottom of the shell, the upper end of the spring is installed on the motor and / or the crankcase, and the lower end of the spring is sleeved on the outer periphery of the bushing.

[0036] In the technical solution of the present invention, the compressor includes the shell and the support assembly. The support assembly is mainly used to elastically support the motor and the crankcase in the shell to play a role in buffering and vibration reduction. In combination with the influence of the existing support assembly on the support height of the motor and the crankcase, that is, the influence on the height of the compressor pump body, and the influence of the overall height of the compressor on the performance, the present application adjusts the structure of the support assembly to relatively reduce the height of the support assembly, while ensuring its own performance, reducing the influence on the overall stability and noise level of the compressor. Specifically, the support assembly includes the support column, the bushing and the spring. The support column is used to be fixed to the shell to play a positioning and supporting role. The bushing is sleeved on the support column to install the spring, reduce the wear of the spring, and extend its service life. On this basis, the present application sets the bushing to be supported at the bottom of the shell, that is, the support column is entirely covered in the bushing, so that the support column overlaps with the bushing in the height direction. When the bushing is sleeved on the support column, the height of the two components is the height of the bushing, thereby avoiding stacking of the support column and the bushing in the height direction, achieving a reduction in the height of the support assembly, and meeting the requirement of the present application to reduce the overall structural height of the compressor. The motor and the crankcase supported by the support assembly are suspended in the shell. Based on this, the present application also provides the shaft sleeve at the lower end of the motor, and the sleeve body of the shaft sleeve has a lower sleeve section that extends downward beyond the support plate. The lower sleeve section can extend downward to utilize the space between the bottom of the motor and the bottom of the shell. To this end, the lower sleeve section increases the contact area between the sleeve body and the crankshaft without occupying additional height dimensions of the compressor, thereby reducing the height of the rotor component while meeting the reliability of the compressor operation, thereby further reducing the overall height of the compressor to meet the design requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0038] Figure 1 A schematic diagram of the planar structure of an embodiment of a compressor provided by the present invention;

[0039] Figure 2 for Figure 1 Schematic diagram of the cross section at AA';

[0040] Figure 3 for Figure 1 Schematic diagram of the cross section at BB';

[0041] Figure 4 for Figure 1 Schematic diagram of the cross section at CC';

[0042] Figure 5 for Figure 1 Another planar structural schematic diagram of the compressor;

[0043] Figure 6 for Figure 1 Exploded diagram of the compressor in FIG.

[0044] Figure 7 for Figure 1 A schematic diagram of the three-dimensional structure of the crankcase in the compressor;

[0045] Figure 8 for Figure 1 A schematic diagram of the three-dimensional structure of a shaft sleeve in a compressor;

[0046] Fig. 9 for Figure 1 Schematic diagram of the planar structure of the shaft sleeve in the compressor.

[0047] Description of Figure Numbers:

[0048] 100. compressor; 1. casing; 11. receiving groove; 2. crankcase; 21. mounting shaft hole; 3. cylinder; 31. piston; 32. connecting rod; 4. motor; 41. stator component; 42. rotor component; 43. through hole; 5. crankshaft; 51. eccentric part; 52. first matching section; 53. second matching section; 6. sleeve; 61. sleeve body; 611. sleeve hole; 612. lower sleeve section; 613. upper sleeve section; 62. support plate; 7. support assembly; 71. support column; 72. bushing; 73. spring; 8. high-pressure chamber assembly; 81. silencer bag; 82. inner exhaust pipe; 9. oil pump; 10. base; 101. support foot; 102. buffer pad.

[0049] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0052] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0053] Reciprocating compressors are widely used in household or commercial refrigerators and freezers because of their high compression efficiency and ability to provide considerable refrigeration capacity at low energy consumption. When designing refrigerators and freezers, the impact of the overall height of the compressor needs to be fully considered. The overall height of the compressor will actually affect the design of the internal structure of the refrigerator, and further affect the volume ratio of the refrigerator and the economic benefits of the whole machine. Therefore, when designing the compressor, the overall height should be reduced as much as possible while ensuring performance.

[0054] In view of this, the present invention proposes a compressor, please refer to Figures 1 to 9 , is an embodiment of the compressor proposed in this application, and the compressor will be described in detail below with reference to specific drawings.

[0055] See also Figures 1 to 9The compressor 100 includes a housing 1, a crankcase 2, a cylinder 3, a motor 4, a crankshaft 5, a sleeve 6 and a support assembly 7. The crankcase 2 is arranged in the housing 1, and the crankcase 2 is provided with a mounting shaft hole 21 that is arranged to pass through from top to bottom; the cylinder 3 is located in the housing 1 and is arranged on the upper side of the crankcase 2; the motor 4 is located in the housing 1 and is arranged on the lower side of the crankcase 2, the motor 4 includes a stator component 41 and a rotor component 42, and the motor 4 is provided with a through hole 43 that passes through its upper and lower ends; the crankshaft 5 is located in the housing 1 and is rotatably matched with the mounting shaft hole 21, and an eccentric portion 51 is provided at the upper end of the crankshaft 5, and the eccentric portion 51 is connected to the piston 31 in the cylinder 3 through a connecting rod 32, and the lower end of the crankshaft 5 extends out of the lower end of the motor 4 from the through hole 43; the sleeve 6 includes a sleeve body 61 and a support plate 62, and the sleeve body 61 has a through hole that passes through it The shaft sleeve holes 611 at the upper and lower ends are interference fit with the lower end of the crankshaft 5, the support plate 62 is arranged on the outer side of the sleeve body 61, the support plate 62 is located at the lower end of the motor 4 and is connected to the rotor component 42, the lower end of the sleeve body 61 is arranged beyond the lower side of the support plate 62 to form a lower sleeve section 612 that exceeds the lower side of the support plate 62, and the lower end of the lower sleeve section 612 is spaced from the bottom of the shell 1; the support assembly 7 is located in the shell 1, and the support assembly 7 includes a support column 71, a bushing 72 and a spring 73, the support column 71 is fixed to the bottom of the shell 1, the bushing 72 is sleeved on the support column 71, and the bottom of the bushing 72 is supported on the bottom of the shell 1, the upper end of the spring 73 is installed on the motor 4 and / or the crankcase 2, and the lower end of the spring 73 is sleeved on the outer periphery of the bushing 72.

[0056] In the technical solution of the present invention, the compressor 100 includes the shell 1 and the support assembly 7. The support assembly 7 is mainly used to elastically support the motor 4 and the crankcase 2 in the shell 1 to play a role in buffering and vibration reduction. In combination with the influence of the existing support assembly 7 on the support height of the motor 4 and the crankcase 2, that is, the influence on the pump body height of the compressor 100, and the influence of the overall height of the compressor 100 on the performance, the present application adjusts the structure of the support assembly 7 to relatively reduce the height of the support assembly 7, while ensuring its own performance, reducing the influence on the overall stability and noise level of the compressor 100. Specifically, the support assembly 7 includes the support column 71, the bushing 72 and the spring 73. The support The column 71 is used to be fixed to the shell 1 to play a positioning and supporting role. The bushing 72 is sleeved on the support column 71 to install the spring 73, reduce the wear of the spring 73, and extend its service life. On this basis, the present application sets the bushing 72 as a bottom support on the shell 1, that is, the support column 71 is entirely covered in the bushing 72, so that the support column 71 overlaps with the bushing 72 in the height direction. When the bushing 72 is sleeved on the support column 71, the height of the two components is the height of the bushing 72, so as to avoid stacking of the support column 71 and the bushing 72 in the height direction, thereby reducing the height of the support assembly 7 and meeting the requirement of the present application to reduce the overall structural height of the compressor 100. The motor 4 supported by the support assembly 7 and the crankcase 2 are suspended in the housing 1. Based on this, the present application also provides the shaft sleeve 6 at the lower end of the motor 4. The sleeve body 61 of the sleeve 6 has the lower sleeve section 612 that extends downward beyond the support plate 62. The lower sleeve section 612 can extend downward to utilize the space between the bottom of the motor 4 and the bottom of the housing 1. For this reason, the lower sleeve section 612 increases the contact area between the sleeve body 61 and the crankshaft 5 without occupying the additional height dimension of the compressor 100, so that the height of the rotor component 42 can be reduced while meeting the reliability of the operation of the compressor 100, thereby further reducing the overall height of the compressor 100 to meet the design requirements. It should be noted that the type of the motor may not be specifically limited, and it can drive the crankshaft to rotate to realize the compressor function. The motor in the present application adopts a twelve-slot ten-stage motor, which has higher operating efficiency, relatively lower cost, and is more practical.

[0057] Specifically, the sleeve 6 is used to cooperate with the crankshaft 5 to assist the transmission of the rotor component 42 and the crankshaft 5. In addition to the interference fit between the sleeve 61 and the crankshaft 5, the sleeve 61 needs to be fixed to the rotor component 42. Therefore, in the present application, the support plate 62 structure is arranged on the periphery of the sleeve 61, so that the support plate 62 can be connected to the rotor component 42 of the motor 4, so that the support plate 62 can rotate with the rotor component 42 for power transmission, and the sleeve 61 connected to the support plate 62 can rotate with it and transmit power, so that the sleeve 61 can drive the crankshaft 5 to rotate, meeting the functional requirements. In this process, since the lower sleeve section 612 can be set to a sufficient length to increase the contact area between the sleeve 61 and the crankshaft 5, the holding force at the contact point between the two can be increased, the wear on the crankshaft 5 can be reduced, and the reliability of the operation of the compressor 100 can be improved.

[0058] Furthermore, the fixed connection method between the support plate 62 and the rotor component 42 needs to be considered. In this embodiment, it is considered that the rotor component 42 is formed by overlapping rotor punchings, and the overall structure of the rotor component 42 is formed by riveting through rivets, and the support plate 62 is attached to the lower end of the rotor component 42. Therefore, corresponding rivet holes are set on the support plate 62, and the rivet holes on the support plate 62 are aligned with the rivet holes on the rotor punchings of the rotor component 42, so that the support plate 62 can be synchronously fixed by the rivet parts that fix the rotor punchings. On the one hand, the connection is stable, and on the other hand, the support plate 62 can be stabilized by simple adjustment using the original fixed structure. The structural design cost is low and the effect is good.

[0059] In addition, the above definition states that the lower end of the sleeve body 61 exceeds the lower side of the support plate 62 to form the lower sleeve section 612 to achieve the above-described function, but the relationship between the upper end of the sleeve body 61 and the support plate 62 is not defined. Therefore, in this embodiment, the upper end of the sleeve body 61 is defined to exceed the upper side of the support plate 62 to form an upper sleeve section 613 that exceeds the upper side of the support plate 62, and the upper sleeve section 613 extends into the through hole 43. In this way, the upper sleeve section 613 is arranged to be transmitted with the crankshaft 5, and on the basis of ensuring the matching size of the sleeve body 61 and the crankshaft 5, the size of the lower sleeve section 612 can be reduced by increasing the upper sleeve section 613, thereby improving the flexibility of the sleeve 6 arrangement. That is, by extending the upper sleeve section 613 into the through hole 43, the inner space of the rotor component 42 can be utilized, thereby reducing the setting size of the lower sleeve section 612, or when the length of the lower sleeve section 612 remains unchanged, the contact area between the shaft sleeve 6 and the crankshaft 5 can be further increased by setting the upper sleeve section 613, thereby further increasing the holding force.

[0060] Furthermore, when the sleeve body 61 is provided with the upper sleeve section 613 and the lower adjustment section at the same time, the size relationship between the upper sleeve section 613 and the lower adjustment section affects the specific structural function of the compressor 100, so in this embodiment, the length of the lower sleeve section 612 is limited to be greater than or equal to the length of the upper sleeve section 613. In this way, the position interference of the connection between the upper sleeve section 613 and the rotor component 42 can be reduced by the length of the lower sleeve section 612 being greater than the length of the upper sleeve section 613, so as to help reduce the height of the rotor component 42 and meet the structural design requirements of this application.

[0061] In order to ensure the matching size between the sleeve 61 and the crankshaft 5, to ensure the transmission performance between the sleeve 61 and the crankshaft 5 and to reduce the wear of the sleeve 61 on the crankshaft 5, in this embodiment, the length of the sleeve 61 is limited to not less than 13.5 mm to improve the reliability of the operation of the compressor 100. In addition, in addition to the matching dimensions of the sleeve 61 and the crankshaft 5, the structural dimensions of the support plate 62 used to connect the sleeve 61 and the rotor component 42 also affect the operating performance of the compressor 100. Therefore, the thickness of the support plate 62 is further limited in this embodiment. Specifically, the thickness of the support plate 62 is set to between 1.5 mm and 3 mm, which can be 1.5 mm, 3 mm, or 2 mm, within the above range. If the thickness of the support plate 62 is set to less than 1.5 mm, the strength of the support plate 62 is insufficient, which affects the operating state and service life of the compressor 100. In the case where the thickness of the support plate 62 is set to be greater than 3 mm, the structural strength is redundant, which increases the structural cost and has poor practicality.

[0062] In addition, with regard to the specific structural setting of the crankshaft 5, in this embodiment, the crankshaft 5 is defined as having a first matching section 52 and a second matching section 53 distributed up and down, the first matching section 52 is clearance-matched with the mounting shaft hole 21, and the second matching section 53 is interference-matched with the shaft sleeve 6; wherein the outer diameter of the second matching section 53 is larger than the outer diameter of the first matching section 52, and the outer diameter of the second matching section 53 is smaller than the inner diameter of the mounting shaft hole 21. In this way, the outer diameter of the second matching section 53 is smaller than the inner diameter of the mounting shaft hole 21, so that the second matching section 53 can pass through the mounting shaft hole 21 and have an interference fit with the shaft sleeve 6, which is convenient for structural assembly. By setting the outer diameters of the first mating segment 52 and the second mating segment 53 to be different, and in particular, setting the outer diameter of the second mating segment 53 to be larger than the outer diameter of the second mating segment 53, on the one hand, the contact area between the second mating segment 53 and the sleeve body 61 can be increased, thereby further increasing the connection stability between the two. On the other hand, the first mating segment 52 can be loosely matched with the mounting shaft hole 21 to form a lubrication gap, in which lubricating oil can be placed, thereby reducing the wear caused by relative rotation between the two and extending the service life.

[0063] In addition, the compressor 100 also includes a high-pressure chamber assembly 8, which includes a silencer bag 81 and an inner row pipe 82. The inner row pipe 82 is used to connect the silencer bag 81 with the cylinder 3. The spacing between the silencer bag 81 and the crankcase 2 and / or the shell 1 is C, C ≥ 3mm. The compressor 100 also includes the silencer bag 81 disposed between the crankcase 2 and the shell 1. In order to prevent the silencer bag 81 from colliding with the crankcase 2 and the shell 1 when the compressor 100 is running, the installation spacing between the silencer bag 81 and the crankcase 2 and the shell 1 is required to be no less than 3mm in this embodiment. Specifically, it is preferably 4mm in this embodiment, so as to ensure its anti-collision clearance while preventing the silencer bag 81 from occupying too much space after installation.

[0064] In addition, there is relative rotation between the crankshaft 5 and the mounting shaft hole 21, and the need to insert lubricating oil for lubrication has been described above. There are various implementation methods in the field for how to insert the lubricating oil. In this embodiment, the groove is selected to be opened at the lower end of the crankshaft 5 to embed the oil pump 9 partially or completely into the groove to transport the lubricating oil. Specifically, the housing 1 contains lubricating oil, and the lower end of the oil pump 9 extends into the lubricating oil, so that during the rotation of the crankshaft 5, the oil pump 9 is driven to rotate to pump the lubricating oil in the housing 1 into the groove, and through the through hole penetrating the crankshaft 5, the lubricating oil is driven into the lubrication gap between the crankshaft 5 and the mounting shaft hole 21 by centrifugal force, and the outer periphery of the crankshaft 5 is opened with a spirally arranged oil guide groove to guide the lubricating oil upward along the oil guide groove during the rotation of the crankshaft 5, thereby covering the main shaft part of the crankshaft 5 and reaching the eccentric part 51 rotatably connected to the connecting rod 32, thereby realizing the lubrication function. On this basis, in order to ensure the oil pumping performance of the oil pump 9, the depth of the lower end of the oil pump 9 extending into the lubricating oil is limited to no less than 10 mm in this embodiment. In addition, while ensuring the depth of the oil pump 9 extending into the lubricating oil, in order to prevent the lubricating oil from affecting the normal rotation of the rotor component 42, that is, to prevent the lubricating oil from flooding the rotor component 42 to provide damping to the rotor component 42, the distance between the lower end surface of the support plate 62 and the liquid level of the lubricating oil needs to be set to no less than 5.5 mm to ensure the normal operation of the rotor component 42.

[0065] In addition, a receiving groove 11 is opened at the bottom of the shell 1, the support column 71 is fixed to the bottom of the receiving groove 11, and the bottom of the bushing 72 is at least partially embedded in the receiving groove 11, so that the bottom of the bushing 72 is supported on the bottom of the receiving groove 11, that is, in order to lower the height of the support component 7 in the shell 1, the present embodiment has the receiving groove 11 opened at the bottom of the shell 1 to accommodate the support component 7 in the receiving groove 11, thereby lowering the height of the support component 7 in the shell 1. Specifically, the support column 71 is fixed to the bottom of the receiving groove 11, the bushing 72 is sleeved on the support column 71, and the bushing 72 is embedded in the receiving groove 11, so that the bushing 72 and the shell 1 have an overlapping area in the height direction, thereby reducing the height of the support assembly 7 in the shell 1, and the bushing 72 is embedded in the receiving groove 11, which further increases the contact area between the bushing 72 and the shell 1, thereby improving the matching stability between the bushing 72 and the shell 1.

[0066] Specifically, considering the thickness of the shell 1, the structural strength of the shell 1 at the receiving groove 11, and the height reduced by the bushing 72 embedded in the receiving groove 11, the depth of the receiving groove 11 is limited to between 1.5 mm and 2 mm in this embodiment. If the depth of the receiving groove 11 is set to be less than 1.5 mm, the required reduction in the height of the bushing 72 and the stability of the bushing 72 and the receiving groove 11 are not met. If the depth of the receiving groove 11 is set to be greater than 2 mm, the strength of the shell 1 will be affected, or the shell 1 must be thickened. Therefore, the depth of the receiving groove 11 can be 1.5 mm or 2 mm, and is preferably 1.8 mm here to balance the above effects. In addition, the present application also stipulates that the overall height of the bushing 72 should not be greater than 11 mm to meet the overall height setting of the compressor 100, and specifically, in this embodiment, the height of the bushing 72 is preferably 10 mm.

[0067] In addition, in order to further reduce the height of the support assembly 7 in the housing 1, the present embodiment further forms a recessed area at the bottom of the housing 1 corresponding to the position of the support assembly 7, thereby forming a recessed support cup structure to reduce the height of the support assembly 7 and further meet the functional requirements proposed by the present application. It is understandable that the recessed area formed at the bottom of the housing 1 can be formed synchronously during the production and manufacturing process of the housing 1, without adding additional process steps for forming operations, thereby reducing costs.

[0068] In addition, a base 10 is provided at the bottom of the shell 1 adjacent to its peripheral side, and the base 10 includes a foot 101, one end of the foot 101 is connected to the bottom of the shell 1, and the other end extends to the outside of the shell 1, and a buffer pad 102 is provided at the bottom of the foot 101. Generally, in order to ensure the installation stability of the shell 1, the base 10 structure is also provided outside the shell 1 to support the shell 1. In this embodiment, the base 10 fixed on the shell 1 has the foot 101 located on the side of the shell 1, that is, compared with being located below the shell 1, the base 10 can have a certain overlap with the shell 1 in the height direction, that is, the distance between the bottom of the shell 1 and the supporting surface is less than the height of the base 10, so as to further reduce the height of the compressor 100 to meet the height reduction requirements proposed in this application. Specifically, the buffer pad 102 is arranged at the lower end of the support foot 101 arranged on the side of the shell 1, and the buffer pad 102 is supported on the supporting end surface to support the shell 1. The buffer pad 102 structure is arranged to further enhance the buffering and vibration reduction effect and improve the noise environment.

[0069] Furthermore, the bottom lower side surface of the shell 1 is lower than the upper end surface of the buffer pad 102 and higher than the lower end surface of the buffer pad 102 at the position corresponding to the support assembly 7. In order to meet the compression of the height of the compressor 100 and reduce the size of the compressor 100 in the height direction as much as possible, on the basis of reducing the height of the support assembly 7 as mentioned above, this embodiment also defines the position of the bottom of the support assembly 7 relative to the base 10 in the height direction. Specifically, the bottom lower side surface of the shell 1 corresponds to the position of the support assembly 7 in the height direction and is located between the upper end surface of the buffer pad 102 and the lower end surface of the buffer pad 102, so that the support assembly 7 and the base 10 also have an overlapping part in the height direction, thereby reducing the height of the compressor 100 and meeting the structural setting requirements.

[0070] In addition, based on the structural characteristic that the support leg 101 is located on the side of the shell 1, when the support leg 101 supports the shell 1, the bottom end surface of the shell 1 is not necessarily located above the support leg 101, that is, considering the installation environment of the compressor 100, if the support structure supporting the support leg 101 is concave or empty corresponding to the position of the shell 1 to avoid the shell 1, the bottom end surface of the shell 1 can actually extend to a position lower than the support surface setting of the support structure for supporting the support leg 101, that is, the support leg 101 located on the periphery of the shell 1 is supported on the support surface via the buffer pad 102, and the shell 1 can extend downward out of the support surface setting, such as This setting can be understood as that the installation position of the compressor 100 is provided with an avoidance space for avoiding the shell 1, so as to further reduce the height space occupied by the compressor 100 when installed. On this basis, the height space occupied by the compressor 100 is measured by the distance between the top end surface of the shell 1 and the bottom end surface of the buffer pad 102 installed on the support leg 101. In order to meet the functional requirements of reducing the height of the compressor 100 required by this application to increase the volume ratio of the refrigeration equipment, in this embodiment, the distance from the top end surface of the shell 1 to the bottom end surface of the buffer pad 102 installed on the support leg 101 is limited to no more than 110 mm.

[0071] The present invention also proposes a refrigeration device, the refrigeration device includes a compressor 100. The specific structure of the compressor 100 refers to the above embodiment. Since the refrigeration device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. The refrigeration device includes a refrigerator, a freezer, and other equipment that uses the compressor 100 as a refrigeration system component. In this embodiment, the refrigeration device is mainly a refrigerator.

[0072] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A compressor, characterized in that: include: case; A crankcase is disposed in the housing, and the crankcase is provided with a mounting shaft hole that passes through the crankcase from top to bottom; a cylinder located in the housing and disposed on an upper side of the crankcase; A motor, located in the housing and arranged at the lower side of the crankcase, the motor comprising a stator component and a rotor component, and the motor is provided with through holes arranged through the upper and lower ends thereof; A crankshaft is located in the housing and rotatably cooperates with the mounting shaft hole, an eccentric portion is provided at the upper end of the crankshaft, the eccentric portion is connected to the piston in the cylinder through a connecting rod, and the lower end of the crankshaft extends from the lower end of the motor through the through hole; A sleeve, comprising a sleeve body and a support plate, wherein the sleeve body is provided with a sleeve hole penetrating through the upper and lower ends thereof, the sleeve hole is interference fit with the lower end of the crankshaft, the support plate is arranged on the outer side of the sleeve body, the support plate is located at the lower end of the motor and is connected to the rotor component, the lower end of the sleeve body is arranged beyond the lower side of the support plate to form a lower sleeve section beyond the lower side of the support plate, and the lower end of the lower sleeve section is spaced from the bottom of the housing; as well as, A support assembly is located in the shell, and the support assembly includes a support column, a bushing and a spring. The support column is fixed to the bottom of the shell, the bushing is sleeved on the support column, and the bottom of the bushing is supported by the bottom of the shell, the upper end of the spring is installed on the motor and / or the crankcase, and the lower end of the spring is sleeved on the outer periphery of the bushing.

2. The compressor according to claim 1, characterized in that The upper end of the sleeve body is arranged beyond the upper side of the support plate to form an upper sleeve section beyond the upper side of the support plate, and the upper sleeve section extends into the through hole.

3. The compressor according to claim 2, characterized in that The length of the lower sleeve section is greater than or equal to the length of the upper sleeve section.

4. The compressor according to claim 1, characterized in that The length of the sleeve is A, then A≥13.5 mm; and / or, The thickness of the support plate is B, then 1.5 mm ≤ B ≤ 3 mm.

5. The compressor according to claim 1, characterized in that The crankshaft comprises a first matching section and a second matching section distributed in the up-down direction, the first matching section is clearance-matched with the mounting shaft hole, and the second matching section is interference-matched with the shaft sleeve; Wherein, the outer diameter of the second fitting segment is greater than the outer diameter of the first fitting segment, and the outer diameter of the second fitting segment is smaller than the inner diameter of the mounting shaft hole.

6. The compressor according to claim 1, characterized in that The compressor also includes a high-pressure chamber assembly, which includes a silencer bag and an inner row of pipes. The inner row of pipes is used to connect the silencer bag with the cylinder. The distance between the silencer bag and the crankcase and / or the shell is C, C≥3mm.

7. The compressor according to claim 1, characterized in that The lower end of the crankshaft is provided with a slot, and the compressor further comprises an oil pump, wherein the oil pump is at least partially embedded in the slot: The housing contains lubricating oil, the lower end of the oil pump extends into the lubricating oil, and the depth of the lower end of the oil pump extending into the lubricating oil is D, then D≥10mm; and / or, The distance between the lower end surface of the support plate and the liquid level of the lubricating oil is E, and E≥5.5mm.

8. The compressor according to claim 1, characterized in that The bottom of the housing is provided with a receiving groove, the support column is fixed to the bottom of the receiving groove, and the bottom of the bushing is at least partially embedded in the receiving groove, so that the bottom of the bushing is supported by the bottom of the receiving groove; Wherein, the depth of the accommodation groove is F, then 1.5mm≤F≤2mm; and / or, The length of the bushing is G, then G≤11mm.

9. The compressor according to claim 1, characterized in that The compressor further includes a base, the base includes a support leg, one end of the support leg is connected to the bottom of the shell, the other end of the support leg extends to the outside of the shell, and a buffer pad is provided at the bottom of the support leg; The bottom lower side surface of the shell is located at a position corresponding to the support assembly, is lower than the upper end surface of the buffer pad, and is higher than the lower end surface of the buffer pad.

10. The compressor according to claim 9, characterized in that The distance between the top end surface of the shell and the bottom end surface of the buffer pad is H, and H≤110mm.

11. A refrigeration device, characterized in that: Comprising the compressor according to any one of claims 1 to 10.

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