CN219139376U - Shell, compressor and refrigeration equipment - Google Patents

Abstract

The present disclosure relates to a housing of a compressor, and a refrigeration apparatus. The housing includes a guide portion and a fitting portion in order from an upper end thereof in an axial direction, an inner peripheral surface of the fitting portion fixes the frame by interference fit with the frame, an inner peripheral surface of the guide portion defines a plurality of guide grooves extending in the axial direction, the plurality of guide grooves respectively receive a plurality of support arms of the frame to guide the frame in a process that the frame is loaded into the housing, and an inner diameter defined by the plurality of guide grooves is larger than an outer diameter defined by the plurality of support arms. Through the cooperation of a plurality of guide grooves and a plurality of support arms of the frame, the frame can be inserted into the guide part relatively easily at first, then is pressed into the cooperation part, and this makes the alignment of frame and the upper end of casing easier, and then can improve the product yield and reduce assembly process duration. Further, by the plurality of guide grooves, the frame does not cause deformation of the upper end of the housing during pressing of the frame into the housing, which enables the upper cover to be relatively easily fitted to the upper end of the housing.

Description

Shell, compressor and refrigeration equipment

Technical Field

The disclosure relates to the technical field of compressors, and in particular relates to a shell of a compressor, a compressor with the shell and refrigeration equipment with the compressor.

Background

A compressor is an apparatus for compressing low-pressure gas into high-pressure gas in a compression chamber formed by a casing. The compressor is widely applied to various application scenes, in particular to refrigeration equipment such as air conditioners, refrigerators and the like.

A compressor includes a housing and a frame (also referred to as a main frame) fixed by interference fit with an inner peripheral surface of the housing. During assembly, the frame first needs to be aligned with the upper end of the housing and then pressed into the housing. The frame is reliably fixed to the housing under the pressing of the inner peripheral surface of the housing.

However, it is difficult to align the frame with the upper end of the housing, which reduces the yield of the product (i.e., if the frame is pressed into the housing without aligning the frame with the upper end of the housing, the housing or the frame may be damaged) and increases the time of the assembly process. In addition, the upper end of the housing is deformed to some extent during the process of pressing the housing into the housing from the upper end of the housing, which makes it difficult to assemble the upper cover at the upper end of the housing in the subsequent process.

Disclosure of Invention

In view of this, the present disclosure improves the housing of the compressor to solve the problem that it is difficult to align the frame with the upper end of the housing and the problem that it is difficult to assemble the upper cover at the upper end of the housing.

In one aspect, the present disclosure provides a housing for a compressor. The compressor includes a housing and a frame. The housing includes, in order from an upper end thereof in an axial direction, a guide portion and a fitting portion, an inner peripheral surface of the fitting portion being configured to fix the frame by interference fit with the frame, the inner peripheral surface of the guide portion defining a plurality of guide grooves extending in the axial direction, the plurality of guide grooves being configured to receive a plurality of support arms of the frame, respectively, to guide the frame during the frame is fitted into the housing. Here, the plurality of guide grooves define an inner diameter that is greater than an outer diameter defined by the plurality of support arms.

According to the shell of the compressor, in the assembly process, the frame can be relatively easily inserted into the guide part through the matching of the guide grooves and the support arms of the frame, and then pressed into the matching part, so that the alignment of the frame and the upper end of the shell is easier, the product yield can be improved, and the duration of the assembly process can be reduced. Furthermore, since the plurality of guide grooves define an inner diameter larger than an outer diameter defined by the plurality of support arms of the chassis, the chassis does not cause deformation of the upper end of the housing during pressing of the chassis into the housing (or the mating portion of the housing), which enables the upper cover to be relatively easily assembled to the upper end of the housing.

In one possible implementation, the axial dimension L of each guide slot ₁ Axial dimension L of each support arm ₂ Ratio L of (2) ₁ /L ₂ The value of (2) is in the range of 0.1 to 0.85.

If the ratio L ₁ /L ₂ If the value of (a) is too small, the guiding action (or alignment action) of the plurality of guiding grooves is relatively weak, i.e. the frame may still tilt after the frame is inserted into the guiding portion. If L ₁ /L ₂ If the value of the guide groove is too large, the processing difficulty of the guide grooves is relatively large, and the processing cost is relatively high. In the present implementation, the ratio L ₁ /L ₂ The value of (2) is in the range of 0.1 to 0.85. This structure makes it possible to achieve both the guiding function of the guide groove and the processing cost of the guide groove. That is, with this configuration, the processing difficulty of the plurality of guide grooves is relatively low while ensuring that the guiding and aligning effects of the plurality of guide grooves are relatively good.

In one possible implementation, the upper end of each guide slot tapers down axially.

In the assembly process, the plurality of support arms of the frame are firstly aligned with the upper ends of the plurality of guide grooves of the shell respectively, and then the frame is moved downwards along the axial direction, so that the plurality of support arms are respectively inserted into the plurality of guide grooves, and the whole frame is further inserted into the guide parts of the shell. In the present embodiment, the upper end portion of each guide groove is tapered as it goes down in the axial direction, which makes the upper end portion of each guide groove have a flaring-like configuration. According to this flaring configuration, alignment of each support arm and its corresponding guide slot will be easier, thereby further improving product yield and reducing the duration of the assembly process.

In one possible implementation, the depth of the lower end portion of each guide groove gradually decreases as it goes axially downward.

In the process of pressing the rack from the guide part to the matching part, the supporting arms of the rack are gradually separated from the guide grooves, and the matching mode of the rack and the shell is gradually changed from clearance fit to interference fit. In this process, a relatively large force needs to be applied to the frame (or a relatively large force is applied to the housing), which makes the pressing process relatively difficult and there is a possibility that the frame or the housing is damaged. In this embodiment, the depth of the lower end portion of each guide groove gradually decreases as it goes axially downward, which gives the lower end portion of each guide groove a slope-like configuration. By this ramp-like configuration, the force exerted on the frame (or the force exerted on the housing) during the press-fitting of the frame from the guide can be relatively small, which makes the press-fitting process relatively easy and contributes to a reduced likelihood of damage to the frame or the housing.

In one possible implementation, the plurality of guide slots are configured symmetrically about the perimeter Xiang Fei. Correspondingly, the plurality of support arms of the frame are also configured symmetrically about the perimeter Xiang Fei center to mate with the plurality of guide slots.

In this embodiment, the plurality of guide grooves are configured symmetrically along the circumference Xiang Fei, which makes the plurality of guide grooves have not only a guiding effect but also a foolproof effect. According to the implementation manner, in the assembly process, the machine frame can be effectively prevented from being accidentally misplaced relative to the shell in the circumferential direction, and the unmatched shell and the machine frame can be prevented from being accidentally assembled together.

There are various ways of achieving non-central symmetry of the plurality of guide grooves in the circumferential direction. As one possible implementation, the plurality of guide grooves may be configured at equal intervals along the circumference Xiang Fei such that the plurality of guide grooves are not centrally symmetrical in the circumferential direction. As another possible implementation, at least two of the plurality of guide grooves are different in shape, so that the plurality of guide grooves are not centrosymmetric in the circumferential direction. As another possible implementation, the plurality of guide grooves are configured at equal intervals along the circumference Xiang Fei, and at least two of the plurality of guide grooves are different in shape, such that the plurality of guide grooves are non-centrally symmetrical in the circumferential direction.

In one possible implementation, the number of the plurality of guide grooves is three or four. Of course, in other examples, the number of the plurality of guide grooves may be other numbers, depending on the number of the support arms of the rack. For example, in one example, the number of the plurality of guide grooves may be two. As another example, the number of the plurality of guide grooves may be five or more.

In one possible implementation, the compressor further includes an upper cover, and the upper end of the housing is configured to be inserted into the upper cover.

According to the shell of the compressor, due to the plurality of guide grooves, the upper end of the shell cannot be excessively deformed in the process of loading the frame into the shell, so that the upper end of the shell can be more easily inserted into the upper cover, and the upper end of the shell is more tightly matched with the upper cover.

In another aspect, the present disclosure also provides a compressor. The compressor may comprise a housing provided in the above aspect.

In another aspect, the present disclosure also provides a refrigeration device. The refrigeration apparatus includes the compressor provided in the above aspect. In one example, the refrigeration appliance may be an air conditioner. In another example, the refrigeration appliance may also be a refrigerator.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are required to be used in the embodiments will be briefly described below.

It is to be understood that the following drawings illustrate only certain embodiments of the present disclosure and are therefore not to be considered limiting of scope, for other related drawings may be obtained by those of ordinary skill in the art based on these drawings.

It should also be understood that the same or similar reference numerals are used throughout the drawings to designate the same or similar elements.

It should also be understood that the drawings are merely schematic and that the dimensions and proportions of the elements in the drawings are not necessarily accurate.

Fig. 1 is a schematic cross-sectional view of a compressor according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural view of a housing of the compressor of fig. 1.

Fig. 3 is a schematic cross-sectional view taken along line A-A in fig. 2.

Fig. 4 is a schematic partial view of the housing of fig. 2.

Fig. 5 is a schematic cross-sectional view taken along line B-B in fig. 2.

Fig. 6 is a schematic structural view of a frame of the compressor of fig. 1.

Fig. 7 is a schematic cross-sectional view taken along line C-C in fig. 6.

Fig. 8A to 8C illustrate an assembly process in which a frame of the compressor of fig. 1 is loaded into a housing.

Fig. 9 is a schematic structural view of a housing and a frame of a compressor according to another embodiment of the present disclosure.

Fig. 10 is a schematic structural view of a housing and a frame of a compressor according to another embodiment of the present disclosure.

Fig. 11 is a schematic structural view of a housing and a frame of a compressor according to another embodiment of the present disclosure.

Detailed Description

The compressor and the casing provided by the present disclosure are exemplified below with reference to the accompanying drawings. It should be understood that the implementations of the present disclosure may be varied and should not be construed as limited to the embodiments set forth herein, which are presented only to provide a more thorough and complete understanding of the present disclosure.

It should be understood that in the embodiments shown in the drawings of the present disclosure, the structural and directional indications (such as up, down) of motion used to explain the various elements of the embodiments of the present disclosure are not absolute but relative. Such descriptions are appropriate when the elements are in the positions or attitudes shown in the drawings or when the elements are in the positions or attitudes conventionally put or used.

Fig. 1 is a schematic cross-sectional view of a compressor 10 according to an embodiment of the present disclosure.

Referring to fig. 1, a compressor 10 may include a housing 11, an upper cover 12, and a lower cover 13. Upper and lower covers 12 and 13 are respectively provided at upper and lower ends of the housing 11 in the axial direction to define a substantially closed cavity (hereinafter referred to as a first cavity for convenience of description) in cooperation with the housing 11. In one example, the upper end of the housing 11 may be inserted into the upper cover 12. In one example, the lower cover 13 may be inserted into the lower end of the housing 11.

It is noted that, in the present disclosure, the term "axial direction" may refer to an extending direction of an axis of the compressor 10 (or, in other words, an axis of the housing 11).

With continued reference to fig. 1, the compressor 10 may also include a frame 14, a drive mechanism 15, and a compression mechanism 16 located in the first cavity. The frame 14 (or referred to as the main frame 14) is fixed relative to the housing 11. For example, the frame 14 may be fixed to the housing 11 by interference fit with the inner peripheral surface of the housing 11. The drive mechanism 15 may include a stator 151, a rotor 152, and a drive shaft 153. In one example, the compressor 10 may be a scroll compressor and the compression mechanism 16 may include a moving scroll 161 and a fixed scroll 162. The fixed scroll 162 is fixed to the frame 14. The drive shaft 153 is rotatably supported by the frame 14 (e.g., via a radial bearing) and is used to drive the orbiting scroll 161 for movement.

In one example, a cavity 121 (hereinafter referred to as a second cavity 121 for convenience of description) may be provided in the interlayer of the upper cover 12. The first cavity may be referred to as a low pressure cavity and the second cavity 121 may be referred to as a high pressure cavity. In operation of the compressor 10, as the orbiting scroll 161 moves, for example, under the drive of the drive shaft 153, fluid from the first chamber enters the second chamber 121 after being compressed by the compression mechanism 16 and is finally discharged through a discharge port (not shown).

Fig. 2 is a schematic structural view of the housing 11. Fig. 3 is a schematic cross-sectional view taken along A-A in fig. 2.

Referring to fig. 2 and 3, the housing 11 may include a guide portion 111 and an engagement portion 112 in order from an upper end thereof in an axial direction. The inner peripheral surface of the guide portion 111 may define a plurality of guide grooves 113 extending in the axial direction. The plurality of guide slots 113 define an inner diameter d ₁ . For example, the bottom surfaces of the plurality of guide grooves 113 may define a cylindrical surface, or the bottom surfaces of the plurality of guide grooves 113 may be a portion of the cylindrical surface; in this case, the inner diameter d ₁ May be the diameter of the cylindrical surface. The mating portion 112 defines an inner diameter d ₂ 。

Fig. 6 is a schematic view of the structure of the frame 14. Fig. 7 is a schematic cross-sectional view taken along line C-C in fig. 6.

Referring to fig. 6 and 7, the frame 14 includes a hub 141 and a plurality of support arms 142, and the plurality of support arms 142 are spaced apart at an outer circumference of the hub 141. The number of the plurality of guide grooves 113 corresponds to the number of the plurality of support arms 142. For example, in this example, the number of the plurality of guide grooves 113 is four, and correspondingly, the number of the plurality of support arms 142 is also four.

It is understood that in other examples, the number of the plurality of guide grooves 113 may be other values as long as the number of the plurality of support arms 142 is the same as the number of the plurality of guide grooves 113. For example, in one example, the number of the plurality of guide grooves 113 may be two. As another example, the number of the plurality of guide grooves 113 may be five or more.

The plurality of support arms 142 define an outer diameter D. For example, the outer peripheral surfaces of the plurality of support arms 142 may define a cylindrical surface, or the outer peripheral surfaces of the plurality of support arms 142 may be a portion of the cylindrical surface; in this case, the outer diameter D may be the diameter of the cylindrical surface. The outer diameter D may be smaller than the inner diameter D ₁ And is greater than the inner diameter d ₂ . That is, the chassis 14 is clearance-fitted with the guide portion 111, and is interference-fitted with the fitting portion 112. The plurality of guide grooves 113 are configured as on-machineThe racks 14 respectively receive a plurality of support arms 142 to guide the racks 14 during the process of being loaded into the housing 11. The inner peripheral surface of the fitting portion 112 is configured to fix the frame 14 by interference fit with the frame 14.

Fig. 8A to 8C show an assembly process in which the chassis 14 is loaded into the housing 11. The process of loading the chassis 14 into the housing 11 will be exemplarily described with reference to fig. 8A to 8C.

Referring to fig. 8A, first, the frame 14 is placed on the upper end side of the housing 11, and the plurality of support arms 142 of the frame 14 are aligned with the plurality of guide grooves 113 of the housing 11.

Referring to fig. 8A and 8B, next, the rack 14 is moved downward, and the rack 14 is inserted into the guide 111 of the housing 11. In this process, the plurality of guide grooves 113 respectively receive the plurality of support arms 142 to guide the frame 14. That is, in this process, the plurality of support arms 142 are respectively inserted into the plurality of guide grooves 113 and respectively slide down along the plurality of guide grooves 113.

Referring to fig. 8B and 8C, next, as the rack 14 continues to move downward, the rack 14 is pressed from the guide portion 111 into the fitting portion 112. Due to the inner diameter d defined by the mating portion 112 ₂ Smaller than the outer diameter D defined by the plurality of support arms 142 of the chassis, and thus the chassis 14 is fixed to the housing 11 by interference fit with the inner peripheral surface of the fitting portion 112. The assembly of the frame 14 and the housing 11 is completed.

In the present disclosure, the inner diameter d ₂ May refer to the inner diameter of the mating portion 112 prior to loading the housing 14 into the shell 11. Or, the inner diameter d ₂ The engagement portion 112 may have an inner diameter when not deformed by the housing of the housing 14.

According to the housing 11 of the compressor 10 provided by the present disclosure, the frame 14 can be relatively easily inserted into the guide part 111 first and then pressed into the fitting part 112 by the fitting of the plurality of guide grooves 113 with the plurality of support arms 142 of the frame 14 during the assembly, which makes the alignment of the frame 14 with the upper end of the housing 11 easier, and thus can improve the product yield and reduce the duration of the assembly process. Further, due to the inner diameter d defined by the plurality of guide grooves 113 ₁ Greater than the outer diameter D defined by the plurality of support arms 142 of the housing 14, the housing 14 does not cause deformation of the upper end of the housing 11 during pressing of the housing 14 into the housing 11 (or mating portion 112 of the housing), which enables the upper cover 12 to be relatively easily assembled to the upper end of the housing 11.

Referring to fig. 3 and 7, each guide slot 113 defines an axial dimension L ₁ Each support arm 142 defines an axial dimension L ₂ . Ratio L ₁ /L ₂ Can range from 0.1 to 0.85. Preferably, the ratio L ₁ /L ₂ Can range from 0.45 to 0.65. Of course, in other examples, the ratio L ₁ /L ₂ The range of values of (c) may be other ranges. For example, in certain embodiments, the ratio L ₁ /L ₂ But may be greater than 1.

If the ratio L ₁ /L ₂ If the value of (1) is too small, the guiding action (or alignment action) of the plurality of guide grooves 113 is relatively weak, that is, the rack 14 may be inclined after the rack 14 is inserted into the guide portion 111. If L ₁ /L ₂ If the value of (1) is too large, the processing difficulty of the plurality of guide grooves 113 is relatively large, and the processing cost is relatively high. In the present implementation, the ratio L ₁ /L ₂ The value of (2) is in the range of 0.1 to 0.85. This structure can achieve both the guiding function of the guide groove 113 and the processing cost of the guide groove 113. That is, with this configuration, the processing difficulty of the plurality of guide grooves 113 is relatively low while ensuring that the guiding and aligning effects of the plurality of guide grooves 113 are relatively good.

Fig. 4 is a schematic partial view of the housing 11, which shows the configuration of the upper end 1131 of any one of the guide grooves 113 without distinction.

Referring to fig. 4, the upper end 1131 of each guide groove 113 is configured to be gradually narrowed as it goes down in the axial direction. That is, the width w of the upper end 1131 of each guide groove 113 gradually decreases as going downward. In the assembly process, it is first required to align the plurality of support arms 142 of the chassis 14 with the upper ends 1131 of the plurality of guide grooves 113 of the housing 11, respectively, and then move the chassis 14 downward in the axial direction so that the plurality of support arms 142 are inserted into the plurality of guide grooves 113, respectively, and thus the entirety of the chassis 14 is inserted into the guide portion 111 of the housing 11. In the present embodiment, the upper end portion 1131 of each guide groove 113 is configured to be gradually narrowed as it goes down in the axial direction, which causes the upper end portion 1131 of each guide groove 113 to have a flaring-like configuration. According to such a flaring configuration, alignment of each support arm 142 and its corresponding guide slot 113 will be easier, thereby further improving product yield and reducing the duration of the assembly process.

Fig. 5 is a schematic cross-sectional view taken along line B-B in fig. 2, which shows the configuration of the lower end portion 1132 of any one of the guide grooves 113 without distinction.

Referring to fig. 5, the depth h of the lower end 1132 of each guide groove 113 gradually decreases as going downward in the axial direction. During the press-fitting of the chassis 14 from the guide portion 111 to the fitting portion 112, the plurality of support arms 142 of the chassis 14 gradually disengage from the plurality of guide grooves 113, and the fitting manner of the chassis 14 with the housing 11 gradually transits from the clearance fit to the interference fit. In this process, a relatively large force needs to be applied to the frame 14 (or a relatively large force is applied to the housing 11), which makes the pressing process relatively difficult and there is a possibility that the frame 14 or the housing 11 may be damaged. In the present embodiment, the depth of the lower end 1132 of each guide groove 113 gradually decreases as it goes axially downward, which causes the lower end 1132 of each guide groove 113 to have a slope-like configuration. By such a ramp-like configuration, the force exerted on the frame 14 (or the force exerted on the housing 11) during the press-fitting of the frame 14 from the guide 111 to the mating portion 112 may be relatively small, which makes the press-fitting process relatively easy and contributes to a reduced likelihood of damage to the frame 14 or the housing 11.

Fig. 9 is a schematic structural view of a housing 11a and a chassis 14a according to another embodiment of the present disclosure.

It should be noted that the housing 11a (and the housing 11b and the housing 11c in the following embodiments) are substantially identical to the housing 11, the frame 14a (and the frame 14b and the frame 14c in the following embodiments) are substantially identical to the frame 14, and the housing 11a (and the housing 11b and the housing 11c in the following embodiments) and the frame 14a (and the frame 14b and the frame 14c in the following embodiments) may be applied to the compressor 10 to replace the housing 11 and the frame 14. The description of the guide groove 113 in the foregoing embodiment is also applicable to the guide groove 113a (and the guide grooves 113b and 113b in the following embodiments) without contradiction.

It should be noted that, although the number of the plurality of guide grooves 113a is three in this embodiment, in other examples, the number of the plurality of guide grooves 113a may be four or other numbers. Similarly, in the embodiments described below, the number of the plurality of guide grooves 113b (or the plurality of guide grooves 113 c) may also be four or other numbers. In this regard, the present disclosure is not particularly limited.

Referring to fig. 9, in this example, the plurality of guide grooves 113a of the housing 11a are configured centrally symmetrically along the circumference Xiang Fei. Correspondingly, the plurality of support arms 142a of the rack 14a are also configured centrally symmetrically along the perimeter Xiang Fei to mate with the plurality of guide slots 113 a. That is, the plurality of guide grooves 113a are non-centrally symmetrical with respect to the axis, and the plurality of support arms 142a are non-centrally symmetrical with respect to the axis.

In this embodiment, the plurality of guide grooves 113a are configured symmetrically along the circumference Xiang Fei, which makes the plurality of guide grooves 113a have not only a guide effect but also a foolproof effect. According to this implementation, during the assembly process, it is possible to effectively prevent the housing 14a from being accidentally misplaced with respect to the housing 11a in the circumferential direction, and also to prevent the housing having a mismatching model from being accidentally assembled with the housing.

There are various ways of realizing the non-central symmetry of the plurality of guide grooves in the circumferential direction, which is not particularly limited in the present disclosure. Several possible implementations are given below.

As a possible implementation, referring again to fig. 9, the plurality of guide grooves 113a may be configured at equal intervals along the circumference Xiang Fei. Specifically, the spacing between the guide groove 113a-1 and the guide groove 113a-2 is greater than the spacing between the guide groove 113a-2 and the guide groove 113a-3, and also greater than the spacing between the guide groove 113a-1 and the guide groove 113 a-3. In this way, the plurality of guide grooves 113a can be made non-centrosymmetric in the circumferential direction. Of course, in other examples, the spacing between any two adjacent guide grooves 113a may be different, or the spacing between any two adjacent guide grooves 113a may be larger or smaller than the spacing between any two other adjacent guide grooves 113 a.

Fig. 10 is a schematic structural view of a housing 11b and a frame 14b according to another embodiment of the present disclosure.

As another possible implementation, referring to fig. 10, at least two guide grooves 113b of the plurality of guide grooves 113b are different in shape, and the interval between any two adjacent guide grooves 113b is the same. Specifically, the guide grooves 113b-2 are identical in shape to the guide grooves 113b-3, and the guide grooves 113b-1 are different from them in shape. In this way, the plurality of guide grooves 113b can be made non-centrosymmetric in the circumferential direction. Of course, in other examples, the shape of any two guide grooves 113b may be different.

Fig. 11 is a schematic structural view of a housing 11c and a frame 11c according to another embodiment of the present disclosure.

As another possible implementation, referring to fig. 11, in this embodiment, the plurality of guide grooves 113c are configured at equal intervals along the circumference Xiang Fei, and at least two guide grooves 113c of the plurality of guide grooves 113c are different in shape, so that the plurality of guide grooves 113c are non-centrally symmetrical in the circumferential direction. Specifically, in this example, the guide grooves 113c-2 are the same shape as the guide grooves 113c-3, and the guide grooves 113c-1 are different from their shape; in addition, the spacing between the guide groove 113c-1 and the guide groove 113c-2 is greater than the spacing between the guide groove 113c-2 and the guide groove 113c-3, and also greater than the spacing between the guide groove 113c-1 and the guide groove 113 c-3.

Other embodiments of the present disclosure also provide a refrigeration device. The refrigeration appliance includes a compressor provided in any of the embodiments described above. For example, the refrigeration appliance may be, but is not limited to, an air conditioner or a refrigerator.

It should be appreciated that there are a variety of ways to form the plurality of guide slots on the housing, which are not specifically limited by the present disclosure. For example, in one example, a plurality of guide grooves may be formed in the housing by way of a reduced material (e.g., a skiving process). As another example, a plurality of guide grooves may be formed on the housing by punching.

It should be understood that the term "include" and variations thereof as used in this disclosure are intended to be open-ended, i.e., including, but not limited to. The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment".

It should be understood that in the presently disclosed embodiments, the terms "mounted" or "assembled" are to be interpreted broadly, unless explicitly stated and limited otherwise. For example, "mounted" or "mounted" may refer to non-removable mounting or assembly, and may refer to removable mounting or assembly. The specific meaning of which in the present disclosure will be understood by those of ordinary skill in the art as the case may be.

The specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present utility model will not be described in detail in any possible combination.

The above is merely a specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art will recognize that changes or substitutions are within the technical scope of the disclosure and are intended to be covered by the protection scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims (10)

1. A housing of a compressor including the housing and a frame, characterized in that the housing includes a guide portion and a fitting portion in order from an upper end thereof in an axial direction, an inner circumferential surface of the fitting portion being configured to fix the frame by interference fit with the frame, the inner circumferential surface of the guide portion defining a plurality of guide grooves extending in the axial direction, the plurality of guide grooves being configured to receive a plurality of support arms of the frame, respectively, to guide the frame during the frame is loaded into the housing, wherein an inner diameter defined by the plurality of guide grooves is larger than an outer diameter defined by the plurality of support arms.

2. The housing of claim 1, wherein the axial dimension L of each guide slot ₁ Axial dimension L of each support arm ₂ Ratio L of (2) ₁ /L ₂ The value of (2) is in the range of 0.1 to 0.85.

3. The housing of claim 1, wherein an upper end portion of each guide groove gradually narrows downward in the axial direction.

4. The housing of claim 1, wherein a depth of a lower end portion of each guide groove gradually decreases as it goes downward in the axial direction.

5. The housing of any one of claims 1 to 4, wherein the plurality of guide slots are configured centrally symmetrically along the perimeter Xiang Fei.

6. The housing of claim 5, wherein the plurality of guide grooves are configured non-equally spaced along the circumferential direction and/or at least two of the plurality of guide grooves are different in shape.

7. The housing of any one of claims 1 to 4, wherein the number of the plurality of guide grooves is three or four.

8. The housing of any one of claims 1 to 4, wherein the compressor further comprises an upper cover, an upper end of the housing being configured to be inserted into the upper cover.

9. A compressor comprising a casing according to any one of claims 1 to 8.

10. A refrigeration apparatus comprising the compressor of claim 9.

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