Shells, compressors and air handling units

Abstract

The present invention discloses a shell, a compressor and an air handling unit. The shell includes a first shell, a second shell and a fixing part. The first annular wall is sleeved and connected with the second annular wall, thereby realizing the circumferential positioning of the first shell and the second shell. The first through hole is communicated with the first groove, and the fixing part is passed through the first through hole and the first groove. The fixing part is simultaneously engaged with the first shell and the second shell, thereby realizing the axial positioning of the first shell and the second shell. When in use, the fixing part is passed through the first through hole and the first groove to realize the fixed connection between the first shell and the second shell. When disassembling, the fixing part is taken out from the first groove and the first through hole to separate the first shell and the second shell. The technical solution of the present application greatly improves the convenience of installing and disassembling the compressor shell. At the same time, the setting of the fixing part ensures that the first shell and the second shell will not be damaged during the disassembly process, which is beneficial to the use and research and development of the compressor.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a shell, a compressor and an air handling unit. Background Art

[0002] In the manufacturing process of refrigerator compressor shells in the prior art, welding is generally used to connect the upper and lower shells. The refrigerator compressor shells obtained by welding often have defects such as cold welding and accumulation of welding slag. When the compressor is working, the compressor shell welds are easily damaged by the influence of the compressor vibration, which causes the compressor shell to have problems such as air leakage. When the air leakage problem occurs, in order to troubleshoot the problem with the compressor shell, the upper and lower shells of the compressor need to be separated. Since the compressor shell formed by welding is a disposable component, the shell cannot be reused. When separating the upper and lower shells, the compressor shell needs to be destroyed, which ultimately leads to the inability to reproduce the original problem when troubleshooting the performance problem. This is seriously detrimental to the troubleshooting of the compressor shell problems in the early stages of compressor research and development. Summary of the Invention

[0003] The present invention provides a shell component, which can ensure that the shell component structure is not damaged during disassembly, and is beneficial to the use and research and development of the compressor.

[0004] To achieve the above objectives, the present application proposes a shell component for a compressor, wherein the shell component defines a housing chamber. The shell component includes a first shell, a second shell, and a fixing component. The first shell includes a first annular wall with an opening at one end, and a first groove is defined on the outer peripheral wall surface of the first annular wall. The second shell includes a second annular wall with an opening at one end, and the second annular wall is sleeved on the outer side of the first annular wall so that the first shell and the second shell together define a housing chamber. The second annular wall has a first through hole, which is connected to the first groove. The fixing component is inserted into the first through hole and the first groove.

[0005] In some embodiments, the first through hole has a first orthographic projection on the outer peripheral wall surface, and the first orthographic projection is located in the opening of the first groove close to the second annular wall.

[0006] In some embodiments, the area of the first positive projection is smaller than the area of the opening of the first groove near the second annular wall, and a second groove is provided on the inner circumferential wall surface of the second annular wall. The second groove is connected to the first groove near the side of the first shell, and along the circumference of the first annular wall, one end of the second groove is connected to the first through hole, and the fixing member is passed through the first through hole, the first groove and the second groove.

[0007] In some embodiments, along a direction parallel to the axis of the first through hole and pointing from the first groove to the first through hole, the area enclosed by the hole wall of the first through hole gradually decreases.

[0008] In some embodiments, the first groove is configured as an arc-shaped groove arranged around the axis of the first annular wall.

[0009] In some embodiments, the first groove is configured as an annular groove continuously arranged around the axis of the first annular wall, and the inner circumferential wall surface of the second annular wall is provided with a second groove. The second groove is connected to the first groove near the side of the first shell, and along the circumference of the first annular wall, the second groove is connected to the first through hole.

[0010] In some embodiments, the first annular wall is recessed toward the side away from the second annular wall to form a first boss, and the first boss includes a first abutment surface facing the second annular wall and a second abutment surface facing the accommodating cavity, the first abutment surface is used to abut against the end face of the second annular wall, and the second abutment surface is used to abut against the inner circumferential wall surface of the second annular wall.

[0011] In some embodiments, the second annular wall is recessed toward the side away from the first annular wall to form a second boss, and the second boss includes a third abutment surface facing the first annular wall and a fourth abutment surface facing the accommodating cavity, the third abutment surface is used to abut against the end face of the first annular wall, and the fourth abutment surface is used to abut against the outer peripheral wall surface of the first annular wall.

[0012] In some embodiments, the shell further includes a sealing ring, which is disposed around the axis of the first annular wall and is located between the first annular wall and the second annular wall.

[0013] In some embodiments, a third groove is provided on the outer peripheral wall surface of the first annular wall, and the third groove is used to accommodate the sealing ring.

[0014] In some embodiments, a fourth groove is provided on the inner circumferential wall surface of the second annular wall, and the third groove is used to accommodate a sealing ring.

[0015] In some embodiments, along an axial direction parallel to the first annular wall, a sealing ring is provided on a side of the first groove close to an opening of the first annular wall.

[0016] In some embodiments, the housing further includes an installation positioning mark.

[0017] A second aspect of the present application further provides a compressor, which includes a shell member of any of the above embodiments and a compression assembly, wherein the compression assembly is arranged in the accommodating cavity.

[0018] The third aspect of the present application further provides an air handling unit, which includes the shell member in any of the above embodiments.

[0019] In some embodiments, the air handling unit includes the compressor of any of the above embodiments.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the shell component of the present application, the first shell has a first annular wall for connecting to the second shell, and the second shell has a second annular wall for connecting to the first shell. The first annular wall and the second annular wall are sleeved together to achieve circumferential positioning of the first and second shells. To achieve circumferential fixed connection of the first and second shells and facilitate disassembly of the first and second shells, the present invention provides a first groove in the first shell and a first through-hole in the second shell, the first through-hole communicating with the first groove, and a fixing member is inserted through the first through-hole and the first groove. The fixing member is engaged with the first shell on one side and with the second shell on the other side. The first and second shells are simultaneously engaged at both ends of the fixing member, thereby achieving axial positioning of the first and second shells. During use, the first and second shells are first sleeved together as a whole to achieve circumferential positioning of the first and second shells, and the first through-hole is aligned and connected to the first groove. Finally, the fixing member is inserted through the first through-hole and the first groove to achieve axial positioning of the first and second shells, thereby achieving fixed connection of the first and second shells. During disassembly, the fixing member is removed from the first groove and the first through hole, and the axial positioning between the first and second shells is cancelled, and the first and second shells can be separated. The technical solution of this application greatly improves the convenience of installing and disassembling the compressor shell. At the same time, the provision of the fixing member ensures that the first and second shells will not be damaged during the disassembly process, which is beneficial to the use and development of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 This is a first exploded schematic diagram of a shell in one embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of a first housing according to an embodiment of the present invention;

[0025] Figure 3 For the present invention Figure 2 A partially enlarged schematic diagram of the first orthographic projection at position IV in the embodiment;

[0026] Figure 4 is a cross-sectional schematic diagram of a second exploded schematic diagram of a shell member in one embodiment of the present invention;

[0027] Figure 5 For the present invention Figure 4A partially enlarged schematic diagram of the shell at position I in the embodiment;

[0028] Figure 6 is a third exploded schematic diagram of a shell member according to an embodiment of the present invention;

[0029] Figure 7 It is an assembly cross-sectional view of a shell member in one embodiment of the present invention;

[0030] Figure 8 For the present invention Figure 7 A partial enlarged schematic diagram of the shell at position II in the embodiment;

[0031] Figure 9 This is a schematic structural diagram of a first shell member having an arc-shaped groove in one embodiment of the present invention;

[0032] Figure 10 For the present invention Figure 9 A partial enlarged schematic diagram of the shell at position III in the embodiment;

[0033] Figure 11 FIG. 1 is a partial schematic diagram of a shell having a first boss and a second boss in an embodiment of the present invention.

[0034] Description of Figure Numbers:

[0035] 100-shell;

[0036] 110-accommodation cavity;

[0037] 120 - first housing; 121 - first annular wall; 122 - first groove; 124 - first boss; 125 - first abutting surface; 126 - second abutting surface; 127 - outer peripheral wall; 128 - third groove;

[0038] 130 - second housing; 131 - second annular wall; 132 - first through hole; 133 - first orthographic projection; 134 - second groove; 135 - second boss; 136 - third abutting surface; 137 - fourth abutting surface; 138 - inner peripheral wall; 139 - fourth groove;

[0039] 140-fixing parts;

[0040] 150-seal ring;

[0041] 160-Install positioning markers.

[0042] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0044] In the manufacturing process of refrigerator compressor shells in the prior art, welding is generally used to connect the upper and lower shells. The refrigerator compressor shells obtained by welding often have defects such as cold welding and accumulation of welding slag. When the compressor is working, the compressor shell welds are easily damaged by the influence of the compressor vibration, which causes the compressor shell to have problems such as air leakage. When the air leakage problem occurs, in order to troubleshoot the problem with the compressor shell, the upper and lower shells of the compressor need to be separated. Since the compressor shell formed by welding is a disposable component, the shell cannot be reused. When separating the upper and lower shells, the compressor shell needs to be destroyed, which ultimately leads to the inability to reproduce the original problem when troubleshooting the performance problem. This is seriously detrimental to troubleshooting the problems with the compressor shell in the early stages of compressor research and development.

[0045] To solve the above problems, Figures 1 to 11 As shown, the present application proposes a housing 100 for a compressor, wherein the housing 100 defines a receiving cavity 110. The housing 100 includes a first shell 120, a second shell 130, and a fixing member 140.

[0046] like Figure 1 As shown, the first housing 120 includes a first annular wall 121 with an open end, and a first groove 122 is formed on the outer peripheral wall surface 127 of the first annular wall 121. It is understood that the first annular wall 121 can be open at one end and closed at the other end, or can be connected to other components according to different usage requirements.

[0047] like Figure 1 As shown, the second shell 130 includes a second annular wall 131 with an open end. The second annular wall 131 is sleeved on the outside of the first annular wall 121 so that the first shell 120 and the second shell 130 jointly define the accommodating cavity 110. The second annular wall 131 is provided with a first through hole 132, and the first through hole 132 is connected to the first groove 122.

[0048] like Figure 6 As shown, the fixing member 140 is disposed through the first through hole 132 and the first groove 122 .

[0049] For ease of description, in this specification, the direction surrounding the axis of the first annular wall 121 is referred to as the circumferential direction of the shell 100 , and the direction parallel to the axis of the first annular wall 121 is referred to as the axial direction of the shell 100 .

[0050] like Figure 1 、 Figure 7 as well as Figure 8 As shown, in the shell 100 of the present application, the first shell 120 has a first annular wall 121 for connecting to the second shell 130, and the second shell 130 has a second annular wall 131 for connecting to the first shell 120. The first annular wall 121 and the second annular wall 131 are sleeved and connected, thereby realizing the circumferential positioning of the first shell 120 and the second shell 130. In order to achieve axial fixation of the first shell 120 and the second shell 130 and facilitate disassembly between the first shell 120 and the second shell 130, the present invention provides a first groove 122 in the first shell 120, and a first through hole 132 in the second shell 130. The first through hole 132 is connected to the first groove 122, and the fixing member 140 is passed through the first through hole 132 and the first groove 122. One side of the fixing member 140 is passed through the first groove 122, and then clamped with the first shell 120, and the other side is passed through the first through hole 132, and then clamped with the second shell 130. The first shell 120 and the second shell 130 are clamped to the fixing member 140, and finally the axial positioning of the first shell 120 and the second shell 130 by the fixing member 140 is achieved.

[0051] When using, Figure 4 、 Figure 5 as well as Figure 6 As shown, the first housing 120 and the second housing 130 are first assembled into a whole, achieving circumferential positioning between the first housing 120 and the second housing 130, and the first through-hole 132 is aligned and connected to the first groove 122. Finally, the fixing member 140 is inserted into the first through-hole 132 and the first groove 122 to achieve axial positioning of the first housing 120 and the second housing 130, thereby achieving a fixed connection between the first housing 120 and the second housing 130. During disassembly, the fixing member 140 is removed from the first groove 122 and the first through-hole 132, and the axial positioning between the first housing 120 and the second housing 130 is cancelled, and the first housing 120 and the second housing 130 can be separated. The technical solution of this application greatly improves the convenience of installing and disassembling the compressor housing. At the same time, the provision of the fixing member 140 ensures that the first housing 120 and the second housing 130 will not be damaged during the disassembly process, which is beneficial to the use and development of the compressor.

[0052] In some embodiments, in order to improve the stability of the fixing member 140 after passing through the first groove 122 and the first through hole 132, the opening cross section of the first through hole 132 is not larger than the circumferential cross section of the first groove 122. Figure 2 as well as Figure 3 As shown, in this embodiment, the first through hole 132 has a first orthographic projection 133 on the outer peripheral wall surface 127. The first orthographic projection 133 is located within the opening of the first groove 122 near the second annular wall 131. That is, with the outer peripheral wall surface 127 as the projection surface, each point on the first through hole 132 is projected onto the outer peripheral wall surface 127 along a direction perpendicular to the axis of the first annular wall 121, thereby obtaining the first orthographic projection 133. The first orthographic projection 133 is located within the opening of the first groove 122 near the second annular wall 131. In other words, the maximum opening of the first through hole 132 is smaller than the opening of the first groove 122 that communicates with the first through hole. The fixing member 140 has one end extending through the first through hole 132 and the other end extending through the first groove 122. The smaller maximum opening of the first through hole 132 than the opening of the first groove 122 that communicates with the first through hole helps the fixing member 140 to be securely fastened between the first housing 120 and the second housing 130, preventing it from falling off easily. It is understood that the first annular wall 121 has an axis, but the first annular wall 121 can be a regular annular wall plate or an irregular annular wall plate with an axis, and this is not limited here. It should be noted that when the size and shape of the first orthographic projection 133 are equal to the size and shape of the opening of the first groove 122 near the second annular wall 131, it can also be understood that the first orthographic projection 133 is located within the opening of the first groove 122 near the second annular wall 131 and is located within the first orthographic projection.

[0053] like Figure 3 as well as Figure 4As shown, in the above embodiment, when the area of the first orthographic projection 133 is smaller than the area of the opening of the first groove 122 near the second annular wall 131, the inner circumferential wall surface 138 of the second annular wall 131 may be provided with a second groove 134 for assisting in engaging the fixing member 140. Specifically, in this embodiment, the area of the first orthographic projection 133 is smaller than the area of the opening of the first groove 122 near the second annular wall 131, and the inner circumferential wall surface 138 of the second annular wall 131 is provided with the second groove 134. The second groove 134 is connected to the first groove 122 on the side close to the first housing 120. Along the circumference of the first annular wall 121, one end of the second groove 134 is connected to the first through hole 132. The fixing member 140 is disposed through the first through hole 132, the first groove 122, and the second groove 134. That is, when the first orthographic projection 133 is located within the opening of the first groove 122 near the second annular wall 131, and the area of the first orthographic projection 133 is smaller than the opening area of the first groove 122, the first through hole 132 is equivalent to another open channel opened in the second shell 130. To enhance the limiting effect of the fixing member 140 on the first shell 120 and the second shell 130, the inner circumferential wall of the second annular wall 131 of the second shell 130 further defines a second groove 134. The provision of the second groove 134 effectively increases the contact area of the fixing member 140 with the first shell 120 and the second shell 130. The fixing member 140 is provided in the first groove 122 and the second groove 134, and axially positions the first shell 120 and the second shell 130. In some embodiments, in order to enhance the axial limiting ability of the fixing member 140 on the first shell 120 and the second shell 130, the fixing member 140 can be a square bar with a rectangular cross-section. When in use, one side of the axial end face of the square bar abuts against the first shell 120, and the other side abuts against the second shell 130. The force applied to the fixing member 140 by the first shell 120 and the second shell 130 is more uniform, thereby enabling the fixing member 140 to better provide axial positioning for the first shell 120 and the second shell 130.

[0054] like Figure 9 as well as Figure 10As shown, in some embodiments, to facilitate insertion of the fixing member 140 into the first groove 122 and the second groove 134, the second annular wall 131 may be provided with a guide structure at the first through-hole 132 to guide the fixing member 140 into the first groove 122 and the second groove 134. Specifically, in this embodiment, the enclosed area of the first through-hole 132 gradually decreases along a direction parallel to the axis of the first through-hole 132 and directed from the first groove 122 to the first through-hole 132. That is, in this embodiment, the second annular wall 131 defines the first through-hole 132, whose opening gradually decreases along the axis of the first through-hole 132 and directed from the first annular wall 121 to the second annular wall 131. The first through-hole 132 has a minimum cross-section at the outer side of the second housing 130 where it communicates with the outside world, and has a maximum cross-section at the side communicating with the first groove 122. This results in a wedge-shaped guide structure forming the sidewall surface of the first through-hole 132. During use, the fixing member 140 is inserted into the first through hole 132 from the outside of the second housing 130. Since the sidewall of the first through hole 132 forms a guide structure, the fixing member 140 slides along the sidewall into the first groove 122 and the second groove 134. The provision of the guide structure greatly reduces the difficulty of installing the fixing member 140. It is understood that in some embodiments, the guide structure can be formed by the hole wall of the first through hole 132, the guide structure can be provided within the second annular wall 131, or it can be provided to protrude relative to the outer peripheral wall surface 127 of the second annular wall 131, and this is not limited here.

[0055] It should be noted that in some embodiments, the configuration of the first groove 122 and the first through-hole 132 is only required to ensure axial positioning of the fixing member 140 with respect to the first shell 120 and the second shell 130. The specific shapes, sizes, and extension directions of the first groove 122 and the first through-hole 132 on the shells may vary. In other words, in some embodiments, the first through-hole 132 and the first groove 122 may be configured in various configurations. The first through-hole 132 may be cylindrical, rectangular, or any other through-hole with a regular or irregular cross-section. The first through-hole 132 may be arranged parallel to the axis of the second annular wall 131 or in any other direction at a predetermined angle to the axis. In some embodiments, the second shell 130 may be provided with multiple first through-holes 132 to facilitate installation of the fixing member 140. The internal structure of the first groove 122 may also be arbitrary, and the first groove 122 may also include a snap-fitting protrusion to enhance engagement with the fixing member 140. The extending direction of the first groove 122 may be consistent with that of the first through hole 132 or may be different from that of the first through hole 132 , which will not be further described here.

[0056] like Figure 6 as well as Figure 9As shown, in some embodiments, according to different usage requirements, the first groove 122 can be arranged around the axis of the first annular wall 121 in any suitable form. Specifically, the first groove 122 can be continuously arranged around the axis of the first annular wall 121, or can be arranged at intervals around the first axis. In this embodiment, the first groove 122 can be configured as an arc-shaped groove arranged around the axis of the first annular wall 121. Correspondingly, the first through hole 132 can also be configured as an arc-shaped groove arranged around the axis of the first annular wall 121 to facilitate the installation of the fixing member 140. It is understandable that in some embodiments, the first annular wall 121 can have multiple sections of arc-shaped grooves, and the sections of the arc-shaped grooves can be connected or spaced apart from each other. Specifically, when the sections of the arc-shaped grooves are connected, the shell 100 can use a single fixing member 140 and have it pass through each section of the arc-shaped groove at the same time. When the arcuate grooves are arranged at intervals, the second housing 130 can be provided with first through holes 132 corresponding to the arcuate grooves, and the housing 100 can include fixing members 140 corresponding to the arcuate grooves. The provision of the arcuate grooves allows for more flexible placement of the fixing members 140. Furthermore, by increasing the number of arcuate grooves, fixing members 140 can be added to locations where enhanced axial fixation is required.

[0057] like Figure 6As shown, in some embodiments, to ensure the fixing ability of the fixing member 140, the first groove 122 can be arranged continuously around the axis of the first annular wall 121. In this embodiment, the first groove 122 is configured as an annular groove arranged continuously around the axis of the first annular wall 121. The inner circumferential wall surface 138 of the second annular wall 131 is provided with a second groove 134. Along the circumference of the first annular wall 121, the second groove 134 is connected to the first groove 122 on the side close to the first housing 120. Along the direction around the axis of the first annular wall 121, the second groove 134 is connected to the first through hole 132. The second housing 130 may also be provided with a second groove 134 arranged around the axis of the second annular wall 131. The fixing member 140 is inserted into the annular first groove 122 and the second groove 134. The second groove 134 communicates with the first through-hole 132. The fixing member 140 is disposed in the first groove 122, thereby enabling the fixing member 140 to abut against the first shell 120. The fixing member 140 is disposed in the second groove 134, thereby enabling the fixing member 140 to abut against the second shell 130. It should be noted that the fixing member 140 does not extend to the opening of the first through-hole 132 on the side away from the second groove 134. This can also be understood as the fixing member 140 also being disposed in the first through-hole 132. The provision of the annular groove effectively improves the convenience of installing the fixing member 140. The first shell 120 of the shell 100 is sleeved within the second shell 130, thereby achieving circumferential positioning of the first and second shells 120, 130. The first groove 122 is continuously arranged around the axis of the first annular wall 121, enabling the fixing member 140 to achieve axial positioning of the first and second shells 120, 130 to the greatest extent possible. It is understandable that in order to strengthen the connection of the fixing member 140, a clamping member can also be provided at the end of the first through hole 132 away from the first groove 122, so that the end of the fixing member 140 can be fixed by the clamping member after passing through the first groove 122. This is not limited here.

[0058] like Figure 8 as well as Figure 11As shown, in some embodiments, to facilitate the sleeved connection between the first and second housings 120, 130 and enhance the positioning capabilities of the first and second housings 120, 130 in a direction parallel to the axis of the first annular wall 121, the first and second housings 120, 130 may be provided with axial positioning structures. In some embodiments, the positioning structures may be provided on the outer circumferential surface 127 of the first annular wall 121, thereby allowing the second annular wall 131 to engage with the positioning structures on the side of the opening of the first annular wall 121. The positioning structures may also be provided on the inner circumferential surface 138 of the second annular wall 131, thereby allowing the first annular wall 121 to engage with the positioning structures on the side of the opening of the second annular wall 131. It is understood that the first and second annular walls 121, 131 may also have retaining structures, so that the first and second annular walls 121 sleeve together as a whole, thereby enhancing the axial fixation capabilities of the first and second annular walls 121, 131. In some embodiments, the first and second annular walls 121, 131 may also constrain themselves to form the positioning structures.

[0059] Specifically, such as Figure 1 as well as Figure 11As shown, in this embodiment, the first annular wall 121 can be recessed toward the side away from the second annular wall 131 to form a first boss 124. The first boss 124 includes a first abutting surface 125 facing the second annular wall 131 and a second abutting surface 126 facing the accommodating cavity 110. The first abutting surface 125 is configured to abut against the end surface of the second annular wall 131, and the second abutting surface 126 is configured to abut against the inner circumferential wall surface 138 of the second annular wall 131. Similarly, the second annular wall 131 can also be recessed toward the side away from the first annular wall 121 to form a second boss 135. The second boss 135 includes a third abutting surface 136 facing the first annular wall 121 and a fourth abutting surface 137 facing the accommodating cavity 110. The third abutting surface 136 is configured to abut against the end surface of the first annular wall 121, and the fourth abutting surface 137 is configured to abut against the outer circumferential wall surface 127 of the first annular wall 121. When only the first annular wall 121 is recessed toward the side away from the second annular wall 131 to form the first boss 124, the end face of the second annular wall 131 abuts against the first abutting surface 125, and the inner circumferential wall surface 138 of the second annular wall 131 abuts against the second abutting surface 126. That is to say, when the second annular wall 131 is sleeved on the first annular wall 121, the first boss 124 enables the second annular wall 131 to be clamped on the side of the first boss 124 close to the opening of the first annular wall 121, thereby enhancing the axial positioning ability of the first shell 120 and the second shell 130. When only the second annular wall 131 is recessed toward the side away from the first annular wall 121 to form the second boss 135, the end surface of the first annular wall 121 abuts the third abutting surface 136, and the outer circumferential wall surface 127 of the first annular wall 121 abuts the fourth abutting surface 137. In other words, when the first annular wall 121 is sleeved onto the second annular wall 131, the second boss 135 causes the first annular wall 121 to engage with the second boss 135 on the side near the opening of the second annular wall 131, thereby enhancing the axial positioning capability of the first housing 120 and the second housing 130. When the first annular wall 121 forms the first boss 124, and the second annular wall 131 forms the second boss 135, it can be understood that the outer circumferential wall of the first annular wall 121 forms the first abutting surface 125 and the second abutting surface 126, and the inner circumferential wall of the second annular wall 131 forms the third abutting surface 136 and the fourth abutting surface 137. The end face of the first annular wall 121 abuts against the third abutting surface 136, the end face of the second annular wall 131 abuts against the first abutting surface 125, and the second abutting surface 126 abuts against the fourth abutting surface 137, thereby realizing the socket connection between the first annular wall 121 and the second annular wall 131, and effectively ensuring the axial positioning ability of the first shell 120 and the second shell 130.

[0060] It should be noted that in some embodiments, the first housing 120 can be configured to gradually reduce the cross-sectional area of the opening defined by the first annular wall 121 along a direction parallel to the axis of the first annular wall 121 and directed from the first housing 120 toward the second housing 130. Alternatively, the second housing 130 can be configured to gradually reduce the cross-sectional area of the opening defined by the second annular wall 131 along a direction parallel to the axis of the second annular wall 131 and directed from the second housing 130 toward the first housing 120, thereby allowing the first annular wall 121 to be sleeved within the second annular wall 131. It is understood that the degree of reduction in the openings of the first housing 120 and the second housing 130 can also be set according to different engagement depth requirements, which is not limited here.

[0061] like Figure 1 As shown, in some embodiments, since the first housing 120 is sleeved within the second housing 130, to ensure the sealing performance between the first and second housings 120, 130, the housing 100 may further be provided with a sealing ring 150. In this embodiment, the sealing ring 150 is disposed around the axis of the first annular wall 121 and is located between the first and second annular walls 121, 131. In other words, the sealing ring 150 is disposed on the side of the first housing 120 near the second housing 130, within the sleeve gap between the first and second housings 120, 130, thereby significantly improving the sealing performance between the first and second housings 120, 130. It should be noted that in some embodiments, the model of the sealing ring 150 may vary, and this is not a limitation herein.

[0062] like Figure 8 as well as Figure 2As shown, in some embodiments, depending on different usage requirements, the sealing ring 150 can be installed between the first housing 120 and the second housing 130 in different ways. The sealing ring 150 can be directly clamped between the first housing 120 and the second housing 130, or the sealing ring 150 can be positioned between the first housing 120 and the second housing 130 by adding grooves on the first annular wall 121 and the second annular wall 131. Specifically, the groove can be provided only in the first housing 120 or the second housing 130, or both can have grooves for accommodating the sealing ring 150. In this embodiment, the outer circumferential surface 127 of the first annular wall 121 is provided with a third groove 128 for accommodating the sealing ring 150. The inner circumferential surface 138 of the second annular wall 131 is provided with a fourth groove 139 for accommodating the sealing ring 150. During use, when assembling the first housing 120 and the second housing 130, first place the sealing ring 150 in the third groove 128 and apply grease to the sealing ring 150. Then, the first housing 120 with the sealing ring 150 is placed on the second housing 130. During the placement process, pressing or other methods can be used to align the third groove 128 with the fourth groove 139, so that the sealing ring 150 in the third groove 128 is embedded in the fourth groove 139 of the second housing 130.

[0063] like Figure 8 As shown, in some embodiments, depending on different needs, the sealing ring 150 can be disposed at any junction between the first annular wall 121 and the second annular wall 131. In this embodiment, to facilitate the arrangement of the fixing member 140, the sealing ring 150 is disposed on the side of the first groove 122 near the opening of the first annular wall 121, parallel to the axis of the first annular wall 121. It is understood that when the outer circumferential wall of the first annular wall 121 is provided with the third groove 128, in the first housing 120, the third groove 128 is disposed on the side of the first groove 122 near the opening of the first annular wall 121. When the inner circumferential wall of the second annular wall 131 is provided with the fourth groove 139, in the second housing 130, the fourth groove 139 is disposed on the side of the first through hole 132 away from the opening of the second annular wall 131. After the first annular wall 121 is sleeved onto the second annular wall 131, the first groove 122 communicates with the first through-hole 132, and the fixing member 140 passes through the first groove 122 and the first through-hole 132, thereby achieving circumferential positioning of the first shell 120 and the second shell 130. The third groove 128 communicates with the fourth groove 139, and the sealing ring 150 passes through the third groove 128 and the fourth groove 139, thereby enhancing the sealing performance of the connection between the first shell 120 and the second shell 130.

[0064] like Figure 9As shown, in some embodiments, to improve the convenience and accuracy of the installation of the shell 100, the first shell 120 and the second shell 130 can be provided with installation positioning marks 160. Specifically, the installation positioning marks 160 can be engraved lines, patterns, etc., which are not limited here. On the one hand, in order to ensure that the first groove 122 of the first shell 120 and the first through hole 132 of the second shell 130 remain connected, thereby ensuring that the fixing member 140 can be inserted into the first through hole 132 and the first groove 122, on the other hand, when the shell 100 has a sealing strip, in order to ensure that the sealing strip is installed in place, the fitting accuracy of the first annular wall 121 and the second annular wall 131 must be ensured during installation. In order to better assist the installation of the first shell 120 and the second shell 130, and to verify the installation accuracy of the first shell 120 and the second shell 130, the first shell 120 and the second shell 130 can be provided with circumferential installation positioning marks 160 and axial positioning marks. Specifically, the circumferential positioning mark can be an annular scale line arranged around the axis of the first annular wall 121. The annular scale line of the first shell 120 can be set on the side of the first annular wall 121 away from the side where it fits with the second annular wall 131. The annular scale line of the second shell 130 can be set on the side of the second annular wall 131 away from the side where it fits with the first annular wall 121. During installation, the relative distance between the annular scale line and the fitting points of the first annular wall 121 and the second annular wall 131 can be used to determine whether the installation of the first shell 120 and the second shell 130 meets the requirements. The axial positioning mark can also be set as a scale line. It should be noted that in order to facilitate the alignment and connection of the first through hole 132 and the first groove 122 during installation, the installation positioning mark 160 can also be used to indicate the opening position and size of the first through hole 132.

[0065] In a second aspect, the present application further provides a compressor (not shown in the figures), which includes a shell 100 according to any of the above embodiments and a compression assembly (not shown in the figures), the compression assembly being disposed in an accommodating chamber 110. Thanks to the improvements to the shell 100, the compressor of this embodiment has the same technical effects as the above-mentioned shifting device, and will not be further described here.

[0066] In a third aspect, the present application further provides an air handling unit (not shown), which includes the housing 100 or compressor of any of the above-described embodiments. Thanks to the improvements in the housing 100 and compressor, the air handling unit of this embodiment has the same technical effects as the housing 100 and compressor described above, and will not be further described here.

[0067] It should be noted that other details regarding the housing 100 disclosed herein can be found in the prior art of compressor housings and will not be further described here. If directional indications (such as up, down, left, right, front, back, etc.) are included in the embodiments of the present invention, such directional indications are only used to explain the relative positional relationships and movement of the various components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0068] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or", "and / or" or "and / or" appear in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0069] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's description and drawings, or direct / indirect applications in other related technical fields, within the scope of the present invention are included in the patent protection scope of the present invention.

Claims

1. A shell member for a compressor, wherein the shell member defines a receiving cavity, characterized in that: The shell comprises: The first housing comprises a first annular wall having an open end, wherein the outer peripheral surface of the first annular wall is provided with a first groove; The second housing includes a second annular wall with an open end, the second annular wall being sleeved on the outside of the first annular wall so that the first housing and the second housing together define the accommodating cavity, the second annular wall being provided with a first through hole, the first through hole being connected to the first groove, the first through hole passing through the outside of the second annular wall, and the first through hole having an opening on a side away from the first groove; A fixing member is inserted into the first through hole and the first groove.

2. The housing according to claim 1, wherein: The first through hole has a first orthographic projection on the outer peripheral wall surface, and the first orthographic projection is located in the opening of the first groove close to the second annular wall.

3. The housing according to claim 2, wherein: The area of the first orthographic projection is smaller than the area of the opening of the first groove near the second annular wall. The inner circumferential wall surface of the second annular wall is provided with a second groove. The second groove is connected to the first groove on the side close to the first shell. Along the circumference of the first annular wall, one end of the second groove is connected to the first through hole. The fixing member is passed through the first through hole, the first groove and the second groove.

4. The housing according to claim 3, wherein: Along a direction parallel to the axis of the first through hole and pointing from the first annular wall to the second annular wall, an area enclosed by the hole wall of the first through hole gradually decreases.

5. The housing according to claim 1, wherein: The first grooves are continuously arranged around the axis of the first annular wall.

6. The housing according to claim 5, wherein: The first groove is configured as an arc-shaped groove arranged around the axis of the first annular wall; or, The first groove is configured as an annular groove continuously arranged around the axis of the first annular wall, and the inner circumferential wall surface of the second annular wall is provided with a second groove. The second groove is connected to the first groove close to the side of the first shell, and along the circumference of the first annular wall, the second groove is connected to the first through hole.

7. The housing according to claim 1, wherein: The first annular wall is recessed toward a side away from the second annular wall to form a first boss, the first boss including a first abutting surface facing the second annular wall and a second abutting surface facing the accommodating cavity, the first abutting surface being configured to abut against an end surface of the second annular wall, and the second abutting surface being configured to abut against an inner circumferential wall surface of the second annular wall; and / or, The second annular wall is recessed toward the side away from the first annular wall to form a second boss, and the second boss includes a third abutment surface facing the first annular wall and a fourth abutment surface facing the accommodating cavity, the third abutment surface is used to abut against the end face of the first annular wall, and the fourth abutment surface is used to abut against the outer peripheral wall surface of the first annular wall.

8. The housing according to claim 1, wherein: The shell further includes a sealing ring, which is arranged around the axis of the first annular wall and is located between the first annular wall and the second annular wall.

9. The housing according to claim 8, wherein: A third groove is provided on the outer peripheral wall surface of the first annular wall, and the third groove is used to accommodate the sealing ring; and / or, The inner peripheral wall surface of the second annular wall is provided with a fourth groove, and the third groove is used to accommodate the sealing ring.

10. The housing according to claim 8, wherein: Along an axial direction parallel to the first annular wall, the sealing ring is arranged on a side of the first groove close to the opening of the first annular wall.

11. The housing according to claim 1, wherein: The shell also includes an installation positioning mark.

12. A compressor, characterized in that: include: The shell according to any one of claims 1 to 11; A compression assembly is arranged in the accommodating cavity.

13. An air handling unit, characterized in that: include: The shell according to any one of claims 1 to 11; or, The compressor of claim 12.

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