CN113898554B

CN113898554B - Compressor structure and refrigeration plant

Info

Publication number: CN113898554B
Application number: CN202010640444.7A
Authority: CN
Inventors: 李娟�; 肖帅; 黄刚
Original assignee: Anhui Meizhi Compressor Co Ltd
Current assignee: Anhui Meizhi Compressor Co Ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2022-08-02
Anticipated expiration: 2040-07-06
Also published as: WO2022007446A1; CN113898554A

Abstract

The invention provides a compressor structure and refrigeration equipment, wherein the compressor structure comprises: a housing in which an accommodating chamber is formed; the motor is arranged in the accommodating cavity, and two axial ends of the motor are respectively provided with a winding; the crankcase is arranged in the accommodating cavity, one end of the motor is arranged on the crankcase, a crankshaft connected with the motor in a transmission mode is arranged in the crankcase, a recessed portion which is recessed towards the other end along the axial direction of the motor is arranged on a winding of one end, close to the crankcase, of the motor, and one portion of the crankcase is arranged in a space surrounded by the recessed portion. According to the technical scheme, one part of the crankcase is arranged in the space enclosed by the concave part, the crankcase can be integrally sunk, the size of the whole compressor structure in the axial direction of the motor can be reduced on the basis of not influencing the sizes of the internal crankcase and the motor, and the design requirement of miniaturization can be met.

Description

Compressor structure and refrigeration plant

Technical Field

The invention relates to the technical field of compressors, in particular to a compressor structure and refrigeration equipment.

Background

At present, in some refrigeration equipment, most of the refrigeration equipment is refrigeration realized by heat exchange of a compressor, so the compressor is the most critical structure in the refrigeration process, namely the most core part, in the process of producing and designing the refrigeration equipment, the overall size of the refrigeration equipment is limited, and the volume proportion of the compressor in the refrigeration equipment is larger, so the volume proportion of other devices or chambers of the refrigeration equipment is relatively reduced, and the chamber volume of the refrigeration equipment is influenced.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

To this end, it is an object according to an embodiment of the present invention to provide a compressor structure.

It is another object according to an embodiment of the present invention to provide a refrigeration device.

In order to achieve the above object, an embodiment of a first aspect of the present invention provides a compressor structure, including: a housing in which an accommodating chamber is formed; the motor is arranged in the accommodating cavity, and two axial ends of the motor are respectively provided with a winding; the crankcase is arranged in the accommodating cavity, one end of the motor is arranged on the crankcase, a crankshaft connected with the motor in a transmission mode is arranged in the crankcase, a recessed portion which is recessed towards the other end along the axial direction of the motor is arranged on a winding of one end, close to the crankcase, of the motor, and one portion of the crankcase is arranged in a space surrounded by the recessed portion.

According to the compressor structure provided by the invention, the compressor structure comprises the shell, the motor and the crankcase, the sunken depressed part is arranged on the winding of the motor, when the crankcase and the motor are assembled, as a part of the crankcase can be positioned in the depressed part, namely a part of the crankcase is arranged in a space surrounded by the depressed part, the whole crankcase can be sunken, on the basis of not influencing the sizes of the internal crankcase and the motor, the size of the whole compressor structure in the axial direction of the motor can be reduced, and the design requirement of miniaturization can be more favorably met. Specifically, be equipped with in the casing and hold the chamber, the intracavity is all located to motor and crankcase, and the casing can play certain guard action for motor and crankcase, locates the one end of motor with the crankcase to be connected the bent axle in the crankcase and motor drive, thereby can drive the bent axle rotation under the effect of motor, in order to form high-pressure air and low-pressure air in the crankcase, and then realize refrigerating.

In the compressor structure, the structure with the largest volume ratio is the motor and the crankcase, so the size of the compressor structure can be reduced by limiting the size of the compressor structure after the compressor structure is connected with the motor and the crankcase, namely the size of the whole compressor structure can be reduced.

Further, the crankshaft can be directly used as an output shaft of the motor, and the motor directly drives the crankshaft to rotate when in operation, or the crankshaft can also be in transmission connection with the output shaft of the motor, so that the motor indirectly drives the crankshaft to rotate.

Wherein, it should be explained that, because both ends of the motor all set up the winding, but the crankcase is only located the one end of motor, so set up the depressed part on the winding of the one end that the motor is close to the crankcase, can provide the space of dodging for partial structure of crankcase to make the casing can reduce in the ascending size of the axial direction of motor. Generally, the compressor is placed vertically, that is, the axial direction of motor sets up along the direction of height, and through setting up the depressed part this moment, when crankcase and motor cooperation, reducible whole is at the size of direction of height.

Of course, it can be understood that, since the recess is provided on the winding, the recess may be symmetrically provided about the axis of the motor in consideration of the balance of the motor during operation, that is, the recess on one side corresponds to a partial structure of the crankcase, and the recess on the other side is symmetrically provided with the recess on one side, and it can be understood that a line connecting the two recesses crosses the axis of the motor.

Wherein, the bent axle can pass the motor for satisfying lubricated demand and extend below the oil level downwards, and is general, and the lower terminal surface of bent axle stretches into oil level 6 mm.

In addition, the technical scheme provided by the invention can also have the following additional technical characteristics:

in the above technical solution, the crankcase specifically includes: a crankcase body; the cylinder head is arranged on one side of the crankcase body, a cylinder opening is formed in the cylinder head, the cylinder head is connected with the crankcase body through a connecting portion, the bottom surface of the cylinder head is lower than the bottom surface of the crankcase body, and at least part of the connecting portion sinks into the recessed portion.

In the technical scheme, the crankcase comprises a crankcase body and a cylinder head, the cylinder head is arranged on one side of the crankcase body, and a cylinder opening is formed in the cylinder head, so that waste gas generated in the rotation process of the crankshaft can be discharged outwards through the cylinder opening. On the basis, the bottom surface of the cylinder head part is limited to be lower than the bottom surface of the crankcase body, namely the cylinder head part sinks, so that the cylinder head part sinks relative to the crankcase body, and the overall height size of the motor and the crankcase is reduced. And for the depressed part, because the cylinder head locates one side of crankcase body, reducible crankcase is whole in the ascending size of axial direction, inject at least partial connecting portion simultaneously and sink into in the depressed part, the depressed part provides dodging the space for the connecting portion promptly, and there is the coincidence in the direction of height in depressed part and connecting portion, does benefit to the holistic miniaturized design of compressor structure.

In addition, when the cylinder head and the crankcase body are connected, the connection part is used for realizing the function of transition connection, but the requirements such as the size and the thickness of the cylinder opening also need to be met.

In the technical scheme, the connecting part is in a hollow column shape, and the axis of the connecting part is coincided with the axis of the cylinder opening.

In this technical scheme, connecting portion are the hollow column, and the axis through injecing connecting portion coincides mutually with the axis of jar mouth to when making connecting portion locate the depressed part, can further guarantee sinking of jar head for the crankcase body, in order to satisfy the miniaturized design of compressor.

Further, to meet the design standard of the compressor, the wall thickness of the connection portion is defined to be greater than or equal to 4 mm.

In the above technical solution, the method further comprises: the groove portion is arranged on one side, close to the crankcase body, of the connecting portion and is sunken towards the crankcase body from the connecting portion.

In this technical scheme, through set up the concave part on connecting portion, on connecting portion satisfied the basis of connecting crankcase body and jar head, the concave part is sunken to the direction of crankcase body by connecting portion, and is inwards sunken promptly to make the concave part can effectively reduce the weight of crankcase.

In the above technical solution, further comprising: the cover valve assembly is arranged corresponding to the cylinder opening and comprises a cylinder cover and a valve plate assembly arranged on one side, facing the cylinder opening, of the cylinder cover.

In the technical scheme, waste gas generated by crankshaft rotation in a crankcase can be discharged outwards by arranging the cover valve assembly corresponding to the cylinder opening, specifically, the cover valve assembly comprises a cylinder cover and a valve plate assembly, the cylinder cover is used for closing the cylinder opening and reducing the possibility of diffusion to the periphery, and the valve plate assembly is arranged between the cylinder cover and the cylinder opening, so that internal gas can be led outwards according to requirements.

In the above technical solution, the housing specifically includes: a first housing; the second casing, the second casing can hold the chamber in order to form with first casing assembly, and is equipped with the blast pipe on the second casing, outside the one end of blast pipe was in the casing, the other end passed behind the lateral wall of second casing along extending towards the direction of first casing.

In this technical scheme, the casing is including first casing and the second casing of mutual dismantlement assembly, when first casing and second casing are connected, its inside can form the chamber that holds that is used for holding motor and crankcase, through setting up first casing and second casing to assemble, be convenient for installer to the equipment cooperation of inside motor and crankcase, in addition, through setting up the blast pipe on the second casing, can make the waste gas of inside device production in the operation outwards discharge, specifically, the one end of blast pipe is outside the casing, the other end is behind the lateral wall that outside-in passed the second casing, the direction extension to first casing, when first casing and second casing are in the horizontal plane promptly, first casing is located the top of second casing, on this basis, the blast pipe can extend upwards after the lateral wall that outside-in passed the second casing.

Of course, in order to facilitate the pipeline connection of the exhaust pipe by an installer, one end of the exhaust pipe extending into the accommodating cavity is higher than the upper surface of the second housing.

In above-mentioned technical scheme, be equipped with first portion of letting the position on the first casing, the shape looks adaptation of the shape of first portion of letting the position and jar head, wherein, jar head is equipped with spacing chamfer towards one side of first casing, and the inner wall of first portion of letting the position can realize spacingly with spacing chamfer cooperation.

In this technical scheme, through set up the first portion of stepping down with the shape looks adaptation of cylinder head on first casing, can provide dodging space for the cylinder head on the one hand, on the other hand can save the space occupation outside the casing to when using compressor structure to different equipment, provide more spaces for other structures.

It is supplementary to need, is equipped with spacing chamfer in one side of jar head, because spacing chamfer sets up towards first casing, can realize the last spacing to the crankcase through spacing chamfer, and the spacing is often increased extra arch on prior art, and this technical scheme then cancels the arch, directly realizes through the self structure of jar head, has further saved direction of height's size.

It should be noted that, the shape of the first relief portion and the shape of the cylinder head portion are in a fitting relationship, that is, they are substantially parallel, and only a certain distance is required between them.

In the above technical solution, the method further comprises: the high-pressure cavity cover is connected to one side, facing the first shell, of the crankcase body through a fastener; and the shape of one of the high-pressure cavity cover and the fastening piece, which has a smaller distance with the inner wall of the first shell, is matched with the shape of the second relief part.

In this technical scheme, through set up the high-pressure chamber lid in one side of crankcase body, can guarantee the sealed of the internal high-pressure chamber of crankcase to reduce the loss of unnecessary compression efficiency, specifically, the high-pressure chamber lid passes through fastener fastening connection in the crankcase body, makes the high-pressure chamber lid can not pull down easily. In addition, by providing the second relief portion on the first housing and selectively adapting the shape of the second relief portion to one of the fastening member and the high-pressure chamber cover, further, the shape of the one of the fastening member and the high-pressure chamber cover closer to the inner wall of the first housing is adapted to the shape of the second relief portion, for example, if the minimum distance between the fastening member and the inner wall of the first housing is smaller than the minimum distance between the high-pressure chamber cover and the inner wall of the first housing, the fastening member may be considered to be more convex, so that the shape of the second relief portion is adapted to the shape of the fastening member.

It should be noted that, the shape of the second relief portion is adapted to the shape of the one of the high-pressure chamber cover and the fastening member that is closer to the inner wall of the first housing, that is, the two are substantially parallel, and only a certain distance exists between the two.

In the above technical solution, the method further comprises: the inner exhaust pipe is arranged in the accommodating cavity, one end of the inner exhaust pipe is connected with one end of the exhaust pipe in the shell, the other end of the inner exhaust pipe is communicated with the high-pressure cavity cover, a third relief part is arranged on the first shell, and the shape of the third relief part is matched with the shape of the inner exhaust pipe close to the first shell.

In this technical scheme, through holding the interior calandria that the intracavity set up and be linked together with the blast pipe, can outwards discharge the internal high-pressure gas of crankcase, and according to the position that sets up that holds intracavity equipment, the interior calandria can produce the multistage and buckle holding the intracavity, so set up on first casing by the third portion of giving way, so that when the interior calandria upwards buckles near the inner wall of first casing, the accessible sets up the shape of third portion of giving way into and the shape looks adaptation of the part pipeline that is close to first casing in the interior calandria, offer the space of dodging for interior calandria.

It should be noted that, the shape of the third relief portion matches the shape of the inner tube bank close to the first casing, that is, the inner surface of the third relief portion is substantially parallel to the upper surface of the inner tube bank, that is, the structure close to one side of the first casing, and only a certain distance exists between the third relief portion and the inner tube bank.

In the above technical solution, the motor includes: the stator structure comprises a silicon steel sheet group and windings respectively arranged at two ends of the silicon steel sheet group; a rotor structure disposed coaxially with the stator; further comprising: the stator connecting piece penetrates through the silicon steel sheet group along the axial direction of the stator structure and extends towards the crankcase; and the stator connecting hole is correspondingly arranged on one side of the crankcase body facing the silicon steel sheet set with the stator connecting piece, wherein the stator connecting hole is connected with the stator connecting piece through threads to realize the corresponding arrangement of the crankcase and the depressed part.

In this technical scheme, the motor includes stator structure and the rotor structure of coaxial setting, and wherein, stator structure includes silicon steel sheet group and winding, through locating the both ends of silicon steel sheet group respectively with the winding, can produce alternating magnetic field when stator structure circular telegram to order about the rotor structure and take place to rotate for stator structure, thereby drive the bent axle rotation in the crankcase. In addition, through set up the stator connecting hole on the crankcase body to set up corresponding stator connecting piece, the stator connecting piece can be followed stator structure's axial and passed silicon steel sheet group, and the part of wearing out can with stator connecting hole threaded connection, with fixed with crankcase and stator structure under the effect of the two, when the two threaded connection, connecting portion can arrange in the depressed part, realize promptly that the correspondence between crankcase and the depressed part sets up, and then satisfy miniaturized design demand.

Wherein, the stator connecting piece can be a screw or a bolt.

In the above technical solution, the method further comprises: the supporting component comprises a supporting piece arranged on the shell and an elastic piece sleeved outside the supporting piece, wherein the supporting piece is provided with a stopping part, one end of the elastic piece is abutted to the stopping part, the other end of the elastic piece is abutted to one end of the silicon steel sheet group, the stator connecting piece sequentially penetrates through the elastic piece and the silicon steel sheet group and then is connected with the stator connecting hole, and when the supporting piece and the stator connecting piece are abutted, the deformation amount of the elastic piece is smaller than the maximum compression deformation amount of the elastic piece.

In this technical scheme, through the supporting component who prescribes a limit to include support piece and elastic component, can provide the support to the motor, specifically, be equipped with on the support piece and stop the portion of supporting, the one end of elastic component is supported in stopping the portion of supporting, and the other end cooperates with the silicon steel sheet group to make the adjustable silicon steel sheet group of elastic component for the distance of support piece. In addition, on the basis of the elastic piece, the stator connecting piece firstly passes through the elastic piece after passing through the silicon steel sheet group, so that the position of the motor and the position of the crankcase relative to the shell are fixed.

Generally, when the motor stator connecting piece is used, a certain distance exists between the supporting piece and the stator connecting piece, and when the supporting piece is limited to abut against the stator connecting piece, the deformation amount of the elastic piece is smaller than the maximum compression deformation amount of the elastic piece, so that when the supporting piece abuts against the stator connecting piece, the elastic piece is not in the maximum compression state, the lower side of the motor is limited by the supporting piece, and the possibility of resonance caused by direct contact of the motor and the shell is reduced.

In the technical scheme, when the supporting piece is abutted to the stator connecting piece, the distance between the crankshaft and the inner bottom surface of the shell is not less than 2mm along the axial direction of the crankshaft, and the minimum distance between the winding and the inner bottom surface of the shell is not less than 2 mm.

In this solution, by limiting the distance between the crankshaft and the inner bottom surface of the shell to be greater than or equal to 2mm, and limiting the distance between the winding and the inner bottom surface to be greater than or equal to 2mm, the crankshaft and the winding are separated from the shell to reduce the resonance of the compressor structure.

In the technical scheme, the transverse dimension of the silicon steel sheet group is in the range of 74mm to 78mm, and the longitudinal dimension of the silicon steel sheet group is in the range of 78mm to 82 mm.

In this technical scheme, through the horizontal size and the vertical size of injecing the silicon steel sheet group to the size of restriction motor, through the size of the above-mentioned silicon steel sheet group of injecing, the holistic size of motor can be effectively controlled, thereby also do benefit to the size of restriction casing.

The transverse dimension is the dimension of the compressor structure in the left-right direction, and the longitudinal dimension is the dimension of the compressor structure in the front-back direction.

In the above technical scheme, be equipped with the spacing portion of first spacing portion and second on the crankcase body, the stator connecting hole is located the spacing portion of first spacing portion and second and is close to one side of motor, the spacing portion of first spacing portion is close to the cylinder head portion and sets up, the spacing portion of second keeps away from the cylinder head portion, restrict the position of crankcase body in the casing through the spacing portion of first spacing portion and second, wherein, be equipped with the groove structure who corresponds with the spacing portion of second on the first casing, the shape of groove structure and the shape looks adaptation of the spacing portion of second.

In this technical scheme, through set up first spacing portion and the spacing portion of second on the crankcase body to locate first spacing portion and the spacing portion of second with the stator connecting hole, the first spacing portion of accessible realizes spacing controlling being close to cylinder head one side, then can realize spacing controlling keeping away from one side of cylinder head through the spacing portion of second, thereby can restrict the position of crankcase body. In addition, still be equipped with the groove structure who corresponds with the position of the spacing portion of second on first casing, can understand, because the spacing portion of second is kept away from the setting of cylinder head portion, so the height around the spacing portion of second is lower to through set up the groove structure of shape looks adaptation on first casing, can improve the outer space utilization of casing.

In the above technical solution, the method further comprises: the amortization subassembly, including first amortization casing and the second amortization casing of dismantling the connection, first amortization casing and second amortization casing form the amortization chamber after connecting, amortization chamber and jar mouth intercommunication, wherein, along the radial of motor, the second amortization casing is located between first amortization casing and the motor.

In this technical scheme, through setting up amortization subassembly, can reduce the noise that the cylinder mouth produced, specifically, amortization subassembly includes first amortization casing and second amortization casing, can form the amortization chamber with cylinder mouth intercommunication when the two are connected to in-process at the bent axle pivoted, can reduce the noise that the cylinder mouth produced through amortization subassembly.

It should be noted that the second silencing shell is disposed between the first silencing shell and the motor, that is, the first silencing shell is disposed on the radial outer side of the second silencing shell.

In the above technical solution, the method further comprises: the socket part is arranged on one side of the shell, which is close to the silencing assembly, wherein the first silencing shell is provided with a fourth relief part, and the shape of the fourth relief part is matched with the shape of a partial structure of the socket part, which extends into the accommodating cavity; and the wiring terminal is arranged on the socket component.

In this technical scheme, through setting up socket part and binding post, can be for the motor power supply in the casing, specifically, socket part locates the casing and is close to one side of amortization subassembly to set up the fourth on the first amortization casing that leans on outer setting and let the position portion, so that dodge the part that the chamber was held in stretching into to the socket part, improve the utilization ratio in space.

In the technical scheme, the maximum transverse dimension of the shell is smaller than or equal to 125mm, the maximum longitudinal dimension is smaller than or equal to 145mm, and the maximum height dimension is smaller than or equal to 125 mm.

In the technical scheme, the maximum transverse dimension, the maximum longitudinal dimension and the maximum height dimension of the shell are respectively limited to be 125mm, 145mm and 125mm, so that the overall performance is met, and the overall dimension is reduced.

In an embodiment of a second aspect of the invention, there is provided a refrigeration appliance comprising a refrigeration shell; the compressor structure according to any of the above embodiments is disposed in the refrigeration shell.

According to an embodiment of the refrigeration apparatus of the present invention, the refrigeration apparatus includes a refrigeration housing and a compressor structure, and the refrigeration housing is used to protect the compressor structure.

The refrigeration device includes, but is not limited to, a refrigerator, an ice chest, an ice maker, and the like, which can perform refrigeration by absorbing heat.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

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

fig. 1 shows a schematic structural view of a compressor structure according to an embodiment of the present invention;

FIG. 2 shows a schematic structural view of a crankcase according to an embodiment of the invention;

FIG. 3 shows a schematic structural view of a crankcase according to an embodiment of the invention;

FIG. 4 shows a schematic structural view of section A-A of FIG. 1;

FIG. 5 is a schematic view of the structure of section B-B of FIG. 1;

FIG. 6 shows a schematic structural view of section C-C of FIG. 1;

FIG. 7 shows a schematic structural view of section D-D of FIG. 1;

FIG. 8 shows a schematic structural view of section E-E of FIG. 1;

fig. 9 shows a schematic structural view of a motor according to an embodiment of the present invention;

fig. 10 shows a schematic structural view of a motor according to an embodiment of the present invention;

FIG. 11 illustrates an exploded view of a compressor structure according to one embodiment of the present invention;

fig. 12 shows a schematic configuration of a refrigeration apparatus according to an embodiment of the present invention.

Wherein, the corresponding relationship between the reference numbers and the components in fig. 1 to 12 is:

1: a compressor structure; 11: a housing; 110: an accommodating chamber; 111: a first housing; 1111: a first escape portion; 1112: a second escape portion; 1113: a third escape portion; 1114: a groove structure; 112: a second housing; 1121: an exhaust pipe; 12: a motor; 121: a winding; 1211: a recessed portion; 122: a stator structure; 1221: silicon steel sheet group; 123: a rotor structure; 13: a crankcase; 131: a crankcase body; 1311: a stator connection hole; 1312: a first limiting part; 1313: a second limiting part; 132: a cylinder head; 1321: a cylinder opening; 1322: limiting and chamfering; 133: a connecting portion; 1331: a groove part; 14: a lid valve assembly; 141: a cylinder head; 142: a valve plate assembly; 15: a high pressure chamber cover; 151: a fastener; 16: an inner calandria; 17: a stator connection member; 20: a support assembly; 21: a support member; 211: a stopping part; 22: an elastic member; 30: a noise reduction assembly; 31: a first sound-deadening housing; 311: a fourth carry portion; 32: a second sound-deadening housing; 41: a socket member; 42: a wiring terminal; 5: a refrigeration device; 51: a refrigerated housing.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A compressor structure and a refrigerating apparatus according to some embodiments of the present invention will be described with reference to fig. 1 to 12.

Example one

As shown in fig. 11, an embodiment of the present invention provides a compressor structure 1, which includes a housing 11, a motor 12, and a crankcase 13, wherein a receiving cavity 110 is formed in the housing 11, the motor 12 and the crankcase 13 are both disposed in the receiving cavity 110, the crankcase 13 is disposed at an upper end of the motor 12, and an axial direction of the motor 12 is disposed along a height direction. And the crankshaft in the crankcase 13 is in transmission connection with the motor 12, so that the crankshaft can be driven to rotate under the action of the motor 12, high-pressure air and low-pressure air are formed in the crankcase 13, and refrigeration is further realized. The windings 121 are arranged at two ends of the motor 12 and the crankcase 13 along the motor 12, the sunken depressed part 1211 is arranged on the winding 121 close to the crankcase 13, when the crankcase 13 is assembled with the motor 12, a part of the crankcase 13 is arranged in a space surrounded by the depressed part 1211, so that the crankcase 13 is sunken, on the basis of not influencing the efficacy of the internal crankcase 13 and the motor 12, the size of the whole in the height direction can be reduced by arranging the depressed part 1211 when the crankcase 13 is matched with the motor 12, and the design requirement of miniaturization can be met.

In one embodiment, the crankshaft directly acts as the output shaft of the motor 12, and the motor 12 directly rotates the crankshaft during operation.

In another embodiment, the crankshaft is drivingly connected to the output shaft of the electric machine 12 such that the electric machine 12 indirectly rotates the crankshaft.

As shown in fig. 10, the number of the concave portions 1211 is two, and the two concave portions 1211 are symmetrically disposed on the winding 121.

Further, the crankshaft extends through the motor 12 to below the oil level to meet the lubrication requirement, and typically, the lower end surface of the crankshaft extends into the oil level by 6 mm.

Example two

As shown in fig. 2 and 3, the present embodiment provides a crankcase 13, which includes a crankcase body 131 and a cylinder head 132, and by disposing the cylinder head 132 at one side of the crankcase body 131 in the radial direction and disposing a cylinder port 1321 on the cylinder head 132, exhaust gas generated during rotation of the crankshaft can be discharged outward through the cylinder port 1321.

The bottom surface of the cylinder head 132 is lower than the bottom surface of the crankcase body 131, i.e. the cylinder head 132 sinks, so that the cylinder head 132 sinks relative to the crankcase body 131, thereby reducing the overall height dimension of the motor 12 and the crankcase 13.

In addition, the bottom surface of the connecting portion 133 is lower than the upper surface of the recessed portion 1211, and the recessed portion 1211 provides a space for avoiding the connecting portion 133, which is beneficial to the overall miniaturization design of the compressor structure 1. Further, the lower surface of the connection portion 133 is provided with a groove portion 1331 recessed upward.

It should be added that when the cylinder head 132 and the crankcase body 131 are connected, the connection 133 is in a hollow cylindrical shape, that is, the connection 133 performs a transitional connection function.

In a particular embodiment, the wall thickness of the connecting portion 133 is defined to be greater than or less than 4 mm.

EXAMPLE III

As shown in fig. 4 to 8, the present embodiment provides a housing 11, which includes a first housing 111 and a second housing 112 detachably assembled with each other, when the first housing 111 and the second housing 112 are connected, an accommodating chamber 110 is formed inside, and an exhaust pipe 1121 communicating the inside and the outside of the accommodating chamber 110 is disposed on the second housing 112. Further, the exhaust tube 1121 extends upward after passing through the sidewall of the second housing 112 from the outside to the inside.

Of course, in order to facilitate the pipe connection of the exhaust pipe 1121 by an installer, one end of the exhaust pipe 1121, which extends into the accommodating chamber 110, is higher than the upper surface of the second housing 112.

In one embodiment, as shown in fig. 4, a side of the cylinder head 132 facing the first housing 111 is provided with a limit chamfer 1322, and the first housing 111 is provided with a first yielding portion 1111 corresponding to the limit chamfer 1322.

In another embodiment, as shown in fig. 6, the high pressure chamber cover 15 is connected to the upper side of the crankcase body 131 through a fastening member 151, the fastening member 151 protrudes out of the high pressure chamber cover 15, and the first housing 111 is provided with a second relief portion 1112 corresponding to the fastening member 151, wherein the fastening member 151 is a screw.

In another embodiment, as shown in fig. 8, an inner row pipe 16 communicated with the exhaust pipe 1121 is disposed in the accommodating cavity 110, the other end of the inner row pipe 16 is communicated with the high pressure cavity cover 15, and a third receding portion 1113 corresponding to the inner row pipe 16 is disposed on the first housing 111.

In addition to the second embodiment, as shown in fig. 3, two first position-limiting portions 1312 and two second position-limiting portions 1313 for receiving the stator connection holes 1311 may be provided on the crankcase body 131, wherein the two first position-limiting portions 1312 are respectively provided on the left and right sides of the front end of the crankcase body 131, the two second position-limiting portions 1313 are respectively provided on the left and right sides of the rear end of the crankcase body 131, the left and right position limitation of the front portion of the crankcase 13 with respect to the housing 11 may be achieved by the first position-limiting portions 1312, and the left and right position limitation of the rear portion of the crankcase 13 with respect to the housing 11 may be achieved by the second position-limiting portions 1313.

Example four

On the basis of the first embodiment, as shown in fig. 9 to 11, the motor 12 includes a stator structure 122 and a rotor structure 123 coaxially disposed, where the stator structure 122 includes a silicon steel sheet set 1221 and a winding 121, and the winding 121 is respectively disposed at two ends of the silicon steel sheet set 1221, so that an alternating magnetic field is generated when the stator structure 122 is energized, so as to drive the rotor structure 123 to rotate relative to the stator structure 122, thereby driving the crankshaft in the crankcase 13 to rotate.

As shown in fig. 11, a stator connection hole 1311 is disposed on the crankcase body 131, and a support assembly 20 including a support member 21 and an elastic member 22 is disposed in the casing 11, wherein the support member 21 is provided with a stopping portion 211, and two ends of the elastic member 22 respectively abut against the stopping portion 211 and the silicon steel sheet group 1221. Through setting up stator connecting piece 17, can pass elastic component 22 and silicon steel sheet group 1221 back in proper order, link to each other with stator connecting hole 1311, wherein, the one end of stator connecting piece 17 is equipped with the external screw thread, is equipped with the internal thread in the stator connecting hole 1311 to through the fixed motor 12 of threaded connection of the two and crankcase 13.

In a normal condition, a certain distance exists between the supporting part 21 and the stator connecting part 17, when the motor 12 and the crankcase 13 move downwards until the stator connecting part 17 and the supporting part 21 are abutted, the deformation amount of the elastic part 22 is smaller than the maximum compression deformation amount of the elastic part 22, namely, the elastic part 22 is not completely compressed at this time, but physical limit is realized through the abutment between the supporting part 21 and the stator connecting part 17.

Further, when the supporting member 21 and the stator connecting member 17 abut against each other, the height gap between the crankshaft and the inner bottom surface of the housing 11 is greater than or equal to 2mm, and the winding 121 may not belong to a regular structure due to its form, so by defining the height gap between the winding 121 and the inner bottom surface to be greater than or equal to 2mm, neither the crankshaft nor the winding 121 may touch the bottom-most portion of the housing 11.

As shown in fig. 11, in any of the above embodiments, there is further provided a head valve assembly 14 corresponding to the cylinder port 1321, including a cylinder head 141 and a valve plate assembly 142, the cylinder head 141 being used for closing the cylinder port 1321 to reduce the possibility of spreading all around, and by providing the valve plate assembly 142 between the cylinder head 141 and the cylinder port 1321, the internal air can be led out according to the requirement.

As shown in fig. 11, in any of the above embodiments, a sound-deadening assembly 30 including a first sound-deadening housing 31 and a second sound-deadening housing 32 is further provided, and the first sound-deadening housing 31 is disposed close to the housing 11, and when the first sound-deadening housing 31 and the second sound-deadening housing 32 are coupled, a sound-deadening chamber communicating with the cylinder port 1321 is formed, so that noise generated from the cylinder port 1321 during rotation of the crankshaft can be reduced by the sound-deadening assembly 30.

As shown in fig. 11, a socket member 41 and a terminal 42 are further provided to supply power to the motor 12 in the housing 11. The first silencer casing 31 is provided with a fourth relief portion 311 corresponding to the socket member 41.

In a particular embodiment, as shown in fig. 9, the group 1221 of silicon steel sheets has a transverse dimension in the range of 74mm to 78mm, and the group 1221 of silicon steel sheets has a longitudinal dimension in the range of 78mm to 82 mm.

In a more specific embodiment, as shown in fig. 1 and 12, the maximum transverse dimension, the maximum longitudinal dimension, and the maximum height dimension of the housing 11 are 125mm, 145mm, and 125mm, respectively, i.e., the housing 11 as a whole is within an area of 125mm x 145mm x 125 mm.

EXAMPLE five

As shown in fig. 1 to 11, the present embodiment provides a specific compressor, which has the characteristics of small size and compactness, the width X of the whole compressor is less than or equal to 125mm, the length Y of the whole compressor is less than or equal to 145mm, the height Z of the whole compressor is less than or equal to 125mm, and the internal layout is compact.

The left and right sides of the cylinder head 132 of the compressor crankcase 13 are provided with upper limit points (i.e. limit chamfers 1322), the two sides above the stator leg (i.e. the stator connecting hole 1311) at the front part of the crankcase 13 are provided with protruding ribs which are left and right limit points (i.e. a first limit part 1312), and the left and right upper limit points and the left and right rear limit points (i.e. a second limit part 1313) are arranged above the stator leg at the tail part of the crankcase 13.

The front part of the upper shell 11 is provided with a bulge 1 (namely a first yielding part 1111) for yielding the cylinder head valve group and the cylinder cover 141 (namely the cylinder head part 132 and the cover valve assembly 14), the right part is provided with a bulge 2 (namely a second yielding part 1112) for yielding a fastening screw (namely a fastening piece 151) of the high-pressure cavity cover 15, the tail part is provided with a bulge 3 (namely a third yielding part 1113) for yielding the inner discharge pipe 16, and the two sides of the tail part are provided with grooves (namely groove structures 1114) which are matched with the upper limit of the tail part of the crankcase 13 in a point mode. The bulges and the grooves are smoothly connected with the shape of the shell 11.

The body of the motor 12 (i.e. the silicon steel sheet set 1221) has a transverse dimension of 74-78mm and a longitudinal dimension of 78-82 mm.

The bottom of the cylinder head (i.e. the cylinder head 132) of the crankcase 13 is lower than the bottom of the body (i.e. the crankcase body 131), and is connected with the crankcase body 131 through a cylinder (i.e. the connecting part 133), and the minimum wall thickness between the cylinder and the cylinder hole (i.e. the cylinder opening 1321) is more than or equal to 4 mm. In assembly, at the corresponding location of the windings (i.e., windings 121) of the motor 12, there is a winding recess (i.e., recess 1211) giving way to the cylinder.

The muffler (i.e., the muffler assembly 30) is composed of two parts a/B (i.e., the first muffler shell 31 and the second muffler shell 32), and the part a (i.e., the first muffler shell 31) has a step (i.e., the fourth relief portion 311) for providing a relief for the socket part 41 of the motor 12.

The movement (i.e. the motor 12 and the crankcase 13) is supported by the seat spring (i.e. the elastic member 22) in cooperation with the steel support pin (i.e. the support member 21) on the housing 11, in a compressed state, a distance between an upper surface of the steel support pin and a lower surface of the stator screw (i.e. the stator connector 17) is L, a length of the seat spring in the compressed state is D1, and in a translational state (i.e. a state where the stator connector 17 abuts against the support member 21), the length of the seat spring is D2, where L < D1-D2, which is a lower limit.

In a compressed state, the minimum distance between the coil of the motor 12 and the bottom of the shell 11 is H1, the distance between the lowest end of the crankshaft and the bottom of the shell 11 is H2, and H1-L is more than or equal to 2 mm. H2-L is more than or equal to 2 mm.

EXAMPLE six

As shown in fig. 12, the present embodiment provides a refrigeration apparatus 5, which includes a refrigeration shell 51 and the compressor structure 1 of any of the above embodiments.

The technical scheme of the invention is explained in detail by combining the drawings, one part of the crankcase is arranged in the space enclosed by the depressed part, the crankcase can be integrally sunk, the size of the whole compressor structure in the axial direction of the motor can be reduced on the basis of not influencing the sizes of the internal crankcase and the motor, and the design requirement of miniaturization can be better met.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are used broadly and should be construed to include, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A compressor structure, comprising:

the device comprises a shell, a first fixing piece and a second fixing piece, wherein an accommodating cavity is formed in the shell;

the motor is arranged in the accommodating cavity, and two axial ends of the motor are respectively provided with a winding;

the crankcase is arranged in the accommodating cavity and is arranged at one end of the motor, a crankshaft in transmission connection with the motor is arranged in the crankcase, and the crankcase comprises a crankcase body and a cylinder head arranged on one side of the crankcase body;

a winding at one end of the motor close to the crankcase is provided with a sunken part sunken towards the other end along the axial direction of the motor, and one part of the crankcase is arranged in a space enclosed by the sunken part;

the casing specifically includes: a first housing and a second housing;

the first shell is provided with a first yielding part, the shape of the first yielding part is matched with that of the cylinder head part,

one side of the cylinder head, which faces the first shell, is provided with a limiting chamfer, and the inner wall of the first position yielding part can be matched with the limiting chamfer to realize limiting.

2. Compressor structure in accordance with claim 1,

the cylinder head is provided with a cylinder opening and is connected with the crankcase body through a connecting part,

wherein the bottom surface of the cylinder head is lower than the bottom surface of the crankcase body, and at least part of the connecting part sinks into the concave part.

3. The compressor structure according to claim 2, wherein the connecting portion has a hollow cylindrical shape, and an axis of the connecting portion coincides with an axis of the cylinder port.

4. The compressor structure of claim 2, further comprising:

the groove portion is arranged on one side, close to the crankcase body, of the connecting portion, and is sunken towards the crankcase body from the connecting portion.

5. The compressor structure of claim 2, further comprising:

and the cover valve assembly is arranged corresponding to the cylinder port and comprises a cylinder cover and a valve plate assembly arranged on one side of the cylinder cover facing the cylinder port.

6. Compressor structure in accordance with claim 2,

the second casing can with first casing assembly is in order to form hold the chamber, just be equipped with the blast pipe on the second casing, the one end of blast pipe is in outside the casing, the other end passes behind the lateral wall of second casing along the orientation the direction of first casing extends.

7. The compressor structure of claim 6, further comprising:

the high-pressure cavity cover is connected to one side, facing the first shell, of the crankcase body through a fastener;

and the shape of one of the high-pressure cavity cover and the fastening piece, which is less than the distance from the inner wall of the first shell, is matched with the shape of the second relief part.

8. The compressor structure of claim 7, further comprising:

an inner exhaust pipe arranged in the containing cavity, wherein one end of the inner exhaust pipe is connected with one end of the exhaust pipe arranged in the shell, the other end of the inner exhaust pipe is communicated with the high-pressure cavity cover,

and a third relief part is arranged on the first shell, and the shape of the third relief part is matched with the shape of the inner calandria close to the first shell.

9. The compressor structure of claim 6, wherein the motor comprises: the stator structure comprises a silicon steel sheet group and windings respectively arranged at two ends of the silicon steel sheet group; a rotor structure disposed coaxially with the stator;

the compressor structure further includes:

the stator connecting piece penetrates through the silicon steel sheet group along the axial direction of the stator structure and extends towards the crankcase;

the stator connecting hole and the stator connecting piece are correspondingly arranged on one side of the crankcase body facing the silicon steel sheet group,

the stator connecting hole and the stator connecting piece are connected through threads to achieve corresponding arrangement of the crankcase and the concave portion.

10. The compressor structure of claim 9, further comprising:

the supporting component is arranged on one side of the motor, which is far away from the crankcase, the supporting component comprises a supporting piece arranged on the shell and an elastic piece sleeved outside the supporting piece,

the stator connecting piece sequentially penetrates through the elastic piece and the silicon steel sheet group and then is connected with the stator connecting hole;

when the supporting piece abuts against the stator connecting piece, the deformation amount of the elastic piece is smaller than the maximum compression deformation amount of the elastic piece.

11. The compressor structure according to claim 10, wherein a distance between the crankshaft and the inner bottom surface of the housing is not less than 2mm and a minimum distance between the winding and the inner bottom surface of the housing is not less than 2mm in an axial direction of the crankshaft when the support member and the stator connection member are abutted.

12. The compressor structure of claim 9, wherein the group of silicon steel sheets has a transverse dimension in the range of 74mm to 78mm and a longitudinal dimension in the range of 78mm to 82 mm.

13. The compressor structure according to claim 9, wherein the crankcase body is provided with a first stopper portion and a second stopper portion, the stator connection hole is provided on a side of the first stopper portion and the second stopper portion close to the motor, the first stopper portion is provided close to the cylinder head portion, the second stopper portion is provided away from the cylinder head portion, and a position of the crankcase body in the housing is restricted by the first stopper portion and the second stopper portion,

and the first shell is provided with a groove structure corresponding to the second limiting part, and the shape of the groove structure is matched with that of the second limiting part.

14. The compressor structure of claim 2, further comprising:

the silencing assembly comprises a first silencing shell and a second silencing shell which are detachably connected, a silencing cavity is formed after the first silencing shell and the second silencing shell are connected, the silencing cavity is communicated with the cylinder opening,

the second silencing shell is arranged between the first silencing shell and the motor along the radial direction of the motor.

15. The compressor structure of claim 14, further comprising:

the socket part is arranged on one side, close to the silencing assembly, of the shell, wherein a fourth relief part is arranged on the first silencing shell, and the shape of the fourth relief part is matched with the shape of a partial structure of the socket part extending into the accommodating cavity;

and the wiring terminal is arranged on the socket component.

16. The compressor structure according to any one of claims 1 to 15, characterized in that the maximum transverse dimension of the shell is less than or equal to 125mm, the maximum longitudinal dimension is less than or equal to 145mm, and the maximum height dimension is less than or equal to 125 mm.

17. A refrigeration apparatus, comprising:

a refrigeration housing;

the compressor structure of any one of claims 1 to 16, disposed within the refrigeration shell.