Shell assembly of compressor module and oxygen generator

Abstract

The utility model provides a compressor module's casing subassembly and oxygenerator, the compressor module's casing subassembly includes: first casing, second casing and positioning structure, first casing includes the top plate and first coaming that forms the half-surrounded structure, second casing includes the bottom plate and second coaming that forms the half-surrounded structure, and the positioning structure includes the top plate and second coaming that forms the half-surrounded structure. The first shell and the second shell are connected in a clamped mode through a positioning structure and define an inner cavity used for installing the compressor assembly, and the first surrounding plate and the second surrounding plate are distributed at the two opposite ends of the shell assembly and matched with each other. The first shell and the second shell are mounted and positioned through the positioning structure, the clamping connection mode is simple and convenient, the mounting and dismounting process is faster, and therefore the compressor assembly can be conveniently overhauled and maintained.

Description

Technical Field

[0001] This utility model relates to the field of oxygen generation equipment technology, and in particular to a housing assembly for a compressor module; this utility model also relates to an oxygen generator comprising the housing assembly of the aforementioned compressor module. Background Technology

[0002] An oxygen concentrator is a device that extracts oxygen from the air. It is primarily used in the medical field to provide high-purity oxygen to patients requiring additional oxygen supply. Molecular sieve oxygen concentrators are currently the most common type, using two molecular sieves that undergo the same circulation process to achieve continuous gas supply. The working process is as follows: raw air is pressurized by a compressor, and the processed compressed air enters the molecular sieve through the inlet valve. Nitrogen is adsorbed within the molecular sieve, and the outflowing gas is high-purity oxygen.

[0003] The compressor of an oxygen concentrator is usually located inside and surrounded by a casing. When maintaining or repairing the compressor, it is necessary to disassemble the casing surrounding the compressor and often remove multiple connecting parts. The disassembly and installation processes are time-consuming and laborious, causing inconvenience to maintenance and repair work. Utility Model Content

[0004] The purpose of this utility model is to provide a housing assembly for a compressor module, which solves the technical problem in the prior art where the disassembly and assembly of the oxygen generator housing is inconvenient, thus affecting the maintenance and repair of the compressor.

[0005] According to a first aspect of the present invention, a housing assembly for a compressor module is provided, comprising:

[0006] The first housing includes a top plate forming a semi-enclosed structure and a first enclosure plate;

[0007] The second housing includes a bottom plate forming a semi-enclosed structure and a second enclosure plate;

[0008] A positioning structure is disposed on the first housing and the second housing;

[0009] The first housing and the second housing are snapped together by the positioning structure and form an inner cavity for installing the compressor assembly. The first enclosure plate and the second enclosure plate are distributed at opposite ends of the housing assembly and cooperate with each other.

[0010] In one embodiment of the present invention, the first enclosure extends from the first end of the top plate to the opposite sides of the top plate, and the opposite sides of the first enclosure respectively form a first inclined side extending obliquely from the bottom end to the second end of the top plate;

[0011] The second enclosure extends from the second end of the base plate to the opposite sides of the base plate, and the opposite sides of the second enclosure respectively form a second inclined side that extends obliquely from the top end toward the first end of the base plate;

[0012] The first and second hypotenuses, located on the same side, cooperate with each other.

[0013] In one embodiment of this utility model, the positioning structure includes a first engaging portion disposed on the first enclosure or the top plate, and a second engaging groove disposed on the second enclosure, wherein the first engaging portion and the corresponding second engaging groove are engaged along the height direction from the top plate to the bottom plate; and / or,

[0014] The positioning structure includes a first slot provided in the first enclosure and a second engaging portion provided in the second enclosure or the bottom plate. The second engaging portion engages with the corresponding first slot along the height direction from the top plate to the bottom plate.

[0015] In one embodiment of the present invention, a third housing is further included, which is fitted on the outside of the first housing and the second housing, and the positioning structure is guided and fitted with the third housing along the height direction from the top plate to the bottom plate.

[0016] In one embodiment of the present invention, the first slot protrudes outward from the first enclosure and extends along the height direction from the top plate to the bottom plate, and the inner side of the third housing is provided with a guide structure that cooperates with the first slot.

[0017] In one embodiment of the present invention, the second slot protrudes outward from the second enclosure and extends along the height direction from the top plate to the bottom plate, and the inner side of the third housing is provided with a guide structure that guides and cooperates with the second slot along the height direction.

[0018] In one embodiment of the present invention, the first snap-fit ​​portion protrudes outward from the first enclosure plate and forms a guide bevel and a groove. The guide bevel engages with the higher side of the second snap-fit ​​groove, and the groove engages with the lower side of the second snap-fit ​​groove.

[0019] In one embodiment of this utility model, one side of the first snap-fit ​​portion is flush with the lower side of the second slot and can be guided and engaged with the guide structure.

[0020] In one embodiment of the present invention, the positioning structure includes limiting portions disposed on opposite sides of the base plate, and the bottom of the first enclosure plate is fitted inside the two limiting portions.

[0021] According to a second aspect of the present invention, an oxygen generator is provided, comprising the housing assembly of the compressor module described above.

[0022] One beneficial effect of this utility model is that:

[0023] The compressor module's housing assembly uses a positioning structure to install and position the first and second housings. The snap-fit ​​connection is simple and convenient, making installation and disassembly faster and easier, thus facilitating the inspection and maintenance of the compressor assembly inside the cavity. By setting the first and second housings as a semi-enclosed structure, the housing assembly has high structural strength, is not easily deformed, and is more stable, providing better protection for the compressor assembly. In addition, the first housing is a semi-enclosed structure with the first enclosure plate located at one end of the housing assembly. After removing the first housing, a portion of the bottom plate can be exposed, and more of the compressor assembly inside the cavity can be exposed, making it easier to inspect the compressor assembly. It also increases the operating space, allowing direct inspection and maintenance of some components of the compressor assembly, reducing the disassembly and assembly work before and after the compressor assembly is inspected and maintained, which helps to improve efficiency and reduces the risk of improper assembly caused by repeated disassembly and assembly of the compressor assembly and housing assembly.

[0024] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0026] Figure 1 This is a schematic diagram of the housing assembly of the compressor module provided by this utility model;

[0027] Figure 2 yes Figure 1 A schematic diagram of the housing assembly being disassembled from the first housing.

[0028] Figure 3 yes Figure 1 A bottom view of the first housing of the housing assembly in the diagram;

[0029] Figure 4 This is a schematic diagram of the housing assembly of the compressor module provided by this utility model, with the third housing installed.

[0030] Figure 5 yes Figure 4 A schematic diagram of the disassembly of the third housing assembly;

[0031] Figure 6 yes Figure 4Exploded views of the first, second, and third housings of the housing assembly;

[0032] Figure 7 yes Figure 4 Cross-sectional views of the first, second, and third housings of the housing assembly.

[0033] Figure 1 to Figure 7 The one-to-one correspondence between the component names and the reference numerals in the figures is as follows:

[0034] The reference numerals and their corresponding component names in the figure are as follows:

[0035] 10. Oxygen generator; 11. Mounting slot;

[0036] 20. Compressor module;

[0037] 21. First shell; 211. Top plate; 212. First enclosure plate; 2121. First hypotenuse;

[0038] 22. Second shell; 221. Base plate; 222. Second enclosure plate; 2221. Second inclined side;

[0039] 23. Third housing; 231. Guide bar; 232. Positioning block;

[0040] 24. Compressor assembly;

[0041] 201. First connecting structure; 2011. First connecting part;

[0042] 202. Second connecting structure; 2021. Second connecting part;

[0043] 204. Positioning structure; 2041. First latching part; 2042. Second latching slot; 2043. First latching slot; 2044. Second latching part; 2045. Limiting part;

[0044] 20411, guide bevel; 20412, groove; 20413, first side edge; 20421, second side edge. Detailed Implementation

[0045] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0046] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0047] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0048] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0049] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0050] In this article, terms such as "up," "down," "top," "bottom," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0051] In this article, "first," "second," etc., are used only to distinguish one another, and not to indicate degree of importance, order, or prerequisite for each other.

[0052] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0053] In this document, unless otherwise stated, "multiple" means two or more. Unless otherwise stated, the numerical range in this document includes not only the entire range within its two endpoints, but also any subranges contained therein.

[0054] Furthermore, the present invention may repeat reference numerals and / or reference letters in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0055] Wherever possible, the various aspects and features described and illustrated in this specification may be applied individually, and these individual aspects may serve as the subject matter of a divisional application.

[0056] Figure 1 to Figure 7 The illustration shows a housing assembly of a compressor module provided by this invention, for mounting on a device. The device can be an oxygen concentrator or other equipment requiring a compressor, such as a refrigerator or freezer.

[0057] The compressor module housing assembly includes a first housing 21 and a second housing 22. The first housing 21 includes a top plate 211 and a first surrounding plate 212 forming a semi-enclosed structure. The second housing 22 includes a bottom plate 221 and a second surrounding plate 222 forming a semi-enclosed structure. The housing assembly also includes a positioning structure 204 disposed on the first housing 21 and the second housing 22. The first housing 21 and the second housing 22 are engaged by the positioning structure 204 and form an inner cavity for mounting the compressor assembly 24. The first surrounding plate 212 and the second surrounding plate 222 are distributed at opposite ends of the housing assembly and cooperate with each other. The compressor assembly 24 is fixedly connected to the second housing 22.

[0058] When installing the housing assembly, the positioning structure 204 can position the first housing 21 and the second housing 22 for installation. The snap-fit ​​connection method is simple and convenient, making the installation and disassembly process faster and easier, thus facilitating the inspection and maintenance of the compressor assembly 24 inside the cavity. Both the first housing 21 and the second housing 22 are designed as semi-enclosed structures, which have high structural strength and are not easily deformed, making the housing assembly more stable and providing better protection for the compressor assembly 24. Both the first housing 21 and the second housing 22 can be designed as a one-piece structure, which has even higher structural strength and greater stability.

[0059] Furthermore, many components of the compressor assembly 24 are mounted on the base plate 221. The first housing 21 has a semi-enclosed structure, and the first enclosure plate 212 is located at one end of the housing assembly. After disassembling the first housing 21, a portion of the base plate 221 is exposed, and more of the compressor assembly 24 inside the cavity is also exposed. This facilitates inspection of the compressor assembly 24 and increases the operating space, allowing for direct inspection and maintenance of some components of the compressor assembly 24. Therefore, in some cases, only the first housing 21 needs to be disassembled for inspection and maintenance, eliminating the need to remove the second housing 22. This reduces the disassembly and assembly work before and after inspecting and maintaining the compressor assembly 24, improving efficiency and reducing the risk of improper assembly due to repeated disassembly and assembly of the compressor assembly 24 and housing assembly.

[0060] Specifically, the first enclosure 212 and the second enclosure 222 are connected to each other on opposite sides of the housing assembly, and the positioning structure 204 is disposed on opposite sides of the housing assembly. The positioning structure 204 located on the first housing 21 and the positioning structure 204 located on the second housing 22 can be engaged together along the height direction from the top plate 211 to the bottom plate 221, with good stability. The first housing 21 and the second housing 22 need to be installed and disassembled along the height direction. When disassembling, the first housing 21 is pulled upward.

[0061] Reference Figure 1From the perspective shown, the top plate 211 and the bottom plate 221 are vertically opposite each other, and the first enclosure plate 212 and the second enclosure plate 222 are horizontally opposite each other. For clarity and conciseness, this specification defines one end of the left and right ends of the housing assembly as the first end and the other end as the second end.

[0062] In some embodiments of this utility model, the first surrounding plate 212 extends from the first end of the top plate 211 to opposite sides of the top plate 211, and the opposite sides of the first surrounding plate 212 respectively form a first inclined edge 2121 extending obliquely from the bottom end to the second end of the top plate 211. The second surrounding plate 222 extends from the second end of the bottom plate 221 to opposite sides of the bottom plate 221, and the opposite sides of the second surrounding plate 222 respectively form a second inclined edge 2221 extending obliquely from the top end to the first end of the bottom plate 221. The first inclined edge 2121 and the second inclined edge 2221 located on the same side cooperate with each other. The cooperating first inclined edge 2121 and the cooperating inclined edge 2221 have the same inclination angle. The first inclined edge 2121 and the second inclined edge 2221 are vertically aligned. The bottom end of the first surrounding plate 212 cooperates with the first end of the bottom plate 221, and the top end of the second surrounding plate 222 cooperates with the second end of the top plate 211.

[0063] The first housing 21 and the second housing 22 are joined together by the first inclined side 2121 and the second inclined side 2221 on the side. The arrangement of the first inclined side 2121 and the second inclined side 2221 enables the first enclosure 212 and the second enclosure 222, which are opposite to each other, to cooperate in the height direction. The positioning structure 204 can be set on the first inclined side 2121 and the second inclined side 2221 to achieve the snap-fit ​​in the height direction.

[0064] In some embodiments of this utility model, such as Figure 1 , Figure 2 and Figure 3 As shown, the positioning structure 204 includes a first engaging portion 2041 disposed on the first enclosure 212 and a second engaging slot 2042 disposed on the second enclosure 222. The first engaging portion 2041 and the corresponding second engaging slot 2042 engage along the height direction from the top plate 211 to the bottom plate 221. The first engaging portion 2041 can be inserted into the second engaging slot 2042 along the height direction.

[0065] Furthermore, the first snap-fit ​​portion 2041 can be disposed on opposite sides of the first enclosure plate 212 or the top plate 211, and the second snap-fit ​​groove 2042 can be disposed on opposite sides of the second enclosure plate 222. The first snap-fit ​​portion 2041 and the second snap-fit ​​groove 2042 located on the same side correspond to and snap-fit ​​each other, thereby fixing the opposite sides of the first housing 21 and the second housing 22.

[0066] In some embodiments of this utility model, such as Figure 1 , Figure 2 and Figure 3As shown, the positioning structure 204 includes a first slot 2043 provided on the first enclosure 212 and a second engaging portion 2044 provided on the second enclosure 222 or the bottom plate 221. The second engaging portion 2044 engages with the corresponding first slot 2043 along the height direction from the top plate 211 to the bottom plate 221. The second engaging portion 2044 can be inserted into the first slot 2043 along the height direction.

[0067] Furthermore, the first slot 2043 can be provided on opposite sides of the first enclosure 212, and the second snap-fit ​​part 2044 can be provided on opposite sides of the second enclosure 222 or the bottom plate 221. The first slot 2043 and the second snap-fit ​​part 2044 located on the same side correspond to and snap-fit ​​each other, thereby fixing the opposite sides of the first housing 21 and the second housing 22.

[0068] In one specific embodiment, first engaging portions 2041 and first slots 2043 are respectively provided on opposite sides of the first enclosure 212. The first engaging portions 2041 are relatively close to the second end of the first housing 21, and the first slots 2043 are relatively close to the first end of the first housing 21. The bottom of the first slot 2043 forms an opening for inserting a second engaging portion 2044, which is located at the bottom of the first enclosure 212. A first inclined edge 2121 is located between the first engaging portions 2041 and the first slots 2043. Second slots 2042 and second engaging portions 2044 are respectively provided on opposite sides of the second enclosure 222. The second engaging portions 2044 are relatively close to the second end of the second housing 22, and the second slots 2042 are relatively close to the first end of the second housing 22. The top of the second slot 2042 forms an opening for inserting a first engaging portion 2041, which is located at the top of the second enclosure 222. The second inclined edge 2221 is located between the second snap-fit ​​portion 2044 and the second snap-fit ​​groove 2042. When the first housing 21 and the second housing 22 are installed, the first snap-fit ​​portion 2041 and the second snap-fit ​​groove 2042 on opposite sides, as well as the second snap-fit ​​portion 2044 and the first snap-fit ​​groove 2043 on opposite sides, can snap together simultaneously.

[0069] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the positioning structure 204 includes limiting portions 2045 disposed on opposite sides of the base plate, and the bottom of the first enclosure plate 212 is fitted inside the two limiting portions 2045. The limiting portions 2045 can position the first enclosure plate 212 during installation, limiting the installation position of the first enclosure plate 212. Specifically, the limiting portions 2045 are disposed on opposite sides of the first end of the base plate 221, and include multiple baffles extending upward from the edge of the base plate 221. The baffles have a certain elasticity, and the inner side of the top of the baffles forms a chamfer structure. When the first housing 21 is installed, the chamfer structure can guide the first enclosure plate 212 to the inner side of the limiting portions 2045.

[0070] In some embodiments of this utility model, such as Figure 4 , Figure 5 and Figure 6 As shown, the housing assembly also includes a third housing 23, which fits on the outside of the first housing 21 and the second housing 22. The positioning structure 204 guides and engages with the third housing 23 along the height direction from the top plate 211 to the bottom plate 221. The third housing 23 can further enhance the protection of the compressor assembly 24 and can also shield the first housing 21 and the second housing 22, making the housing assembly more aesthetically pleasing.

[0071] The positioning structure 204 can position the third housing 23 for installation, and the third housing 23 can be installed and removed along the height direction under the constraint of the positioning structure 204. The positioning structure 204 realizes the cooperation between the first housing 21, the second housing 22 and the third housing 23, which can reduce the connecting parts of the housing assembly, thereby simplifying the disassembly and assembly steps, reducing costs, and facilitating the maintenance and repair of the compressor assembly 24.

[0072] Specifically, the first slot 2043 protrudes outward from the first enclosure 212 and extends along the height direction from the top plate 211 to the bottom plate 221. The inner side of the third housing 23 is provided with a guide structure that guides and engages with the first slot 2043. When the third housing 23 is assembled or disassembled, the guide structure slides along the side of the first slot 2043. The second slot 2042 protrudes outward from the second enclosure 222 and extends along the height direction from the top plate 211 to the bottom plate 221. The inner side of the third housing 23 is provided with a guide structure that guides and engages with the second slot 2042 along the height direction. When the third housing 23 is assembled or disassembled, the third housing 23 slides along the side of the first slot 2043 and the side of the second slot 2042 via the guide structure.

[0073] As shown in Figure 7, in the specific embodiment, the guide structure of the third housing 23 can be configured as a guide bar 231 extending along the height direction. Multiple guide bars 231 are provided. The first slot 2043 is engaged between two of the guide bars 231, and the second slot 2042 is engaged between two of the guide bars 231.

[0074] Specifically, the second slot 2042 is located on the higher side of the second inclined side 2221. The top opening of the second slot 2042 forms an inclined side connected to the second inclined side 2221, with the side connected to the second inclined side 2221 being lower and the side away from the second inclined side 2221 being higher. The first engaging portion 2041 protrudes outward from the first surrounding plate 212 and forms a guide inclined side 20411 and a groove 20412. The guide inclined side 20411 engages with the higher side of the second slot 2042 to guide the first engaging portion 2041 into the second slot 2042. The groove 20412 engages with the lower side of the second slot 2042 to provide positioning and limit the positions of the first engaging portion 2041 and the second slot 2042.

[0075] Furthermore, such as Figure 5 As shown, one side of the first latching portion 2041 is flush with the lower side of the second slot 2042 and can be guided and engaged with the guide structure of the third housing 23. Specifically, the first side 20413 of the first latching portion 2041 is flush with the second side 20421 of the lower side of the second slot 2042, and both the first side 20413 and the second side 20421 are guided and engaged with the corresponding guide strip 231 on the third housing 23, resulting in better stability.

[0076] In some embodiments of this utility model, such as Figure 5 and Figure 6 As shown, the inner side of the third housing 23 is also provided with a positioning block 232, which can cooperate with the top of the first slot 2043 to position the third housing 23. When the third housing 23 is installed in place along the height direction, the positioning block 232 abuts against the top of the first slot 2043, restricting the position of the third housing 23.

[0077] Specifically, the top of the first slot 2043 forms an opening, and the positioning block 232 is configured as an L-shaped hook structure, the bottom end of which can be inserted into the opening at the top of the first slot 2043. The positioning blocks 232 are disposed on opposite sides of the third housing 23, corresponding to the first slots 2043 on opposite sides of the first housing 21 respectively.

[0078] To further reinforce the housing assembly, the first housing 21, the second housing 22, and the third housing 23 can be fixedly connected by fasteners such as screws and pins.

[0079] In one specific implementation, such as Figure 5 and Figure 6As shown, a first connecting structure 201 is provided between the first housing 21, the second housing 22, and the third housing 23. The first connecting structure 201 includes first connecting portions 2011 respectively disposed on the top plate 211, the second enclosure plate 222, and the third housing 23, and each first connecting portion 2011 is fixedly connected by a first fastener. A second connecting structure 202 is also provided between the first housing 21 and the second housing 22. The second connecting structure 202 includes second connecting portions 2021 respectively disposed on the first enclosure plate 212 and the bottom plate 221, and the two second connecting portions 2021 are fixedly connected by a second fastener.

[0080] The first connecting structure 201 securely connects the first housing 21, the second housing 22, and the third housing 23 via a first fastener, reducing the number of parts and steps required for disassembly and assembly, and lowering the difficulty of disassembly and assembly. The second connecting structure 202 enhances the connection stability between the first housing 21 and the second housing 22. The first connecting structure 201 and the second connecting structure 202 are distributed at opposite ends of the housing assembly, with the first connecting structure 201 connecting the top plate 211 and the second enclosure plate 222, and the second connecting structure 202 connecting the bottom plate 221 and the first enclosure plate 212, enabling a more stable connection between the first housing 21 and the second housing 22.

[0081] This utility model also provides an oxygen generator. The oxygen generator 10 is provided with a compressor module 20. The compressor module 20 includes a housing assembly and a compressor assembly 24. The specific structure, principle, function, etc. of the housing assembly can be referred to the housing assembly of the compressor module provided above in this utility model.

[0082] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein. The scope of the present invention is defined by the appended claims.

Claims

1. A housing assembly for a compressor module, characterized in that, include: The first housing includes a top plate forming a semi-enclosed structure and a first enclosure plate; The second housing includes a bottom plate forming a semi-enclosed structure and a second enclosure plate; A positioning structure is disposed on the first housing and the second housing; The first housing and the second housing are snapped together by the positioning structure and form an inner cavity for installing the compressor assembly. The first enclosure plate and the second enclosure plate are distributed at opposite ends of the housing assembly and cooperate with each other.

2. The housing assembly of the compressor module according to claim 1, characterized in that, The first enclosure extends from the first end of the top plate to the opposite sides of the top plate, and the opposite sides of the first enclosure respectively form a first inclined side that extends obliquely from the bottom end to the second end of the top plate; The second enclosure extends from the second end of the base plate to the opposite sides of the base plate, and the opposite sides of the second enclosure respectively form a second inclined side that extends obliquely from the top end toward the first end of the base plate; The first and second hypotenuses, located on the same side, cooperate with each other.

3. The housing assembly of the compressor module according to claim 1 or 2, characterized in that, The positioning structure includes a first engaging portion disposed on the first enclosure or the top plate, and a second engaging groove disposed on the second enclosure, wherein the first engaging portion and the corresponding second engaging groove are engaged along the height direction from the top plate to the bottom plate; and / or, The positioning structure includes a first slot provided in the first enclosure and a second engaging portion provided in the second enclosure or the bottom plate. The second engaging portion engages with the corresponding first slot along the height direction from the top plate to the bottom plate.

4. The housing assembly of the compressor module according to claim 3, characterized in that, It also includes a third housing, which fits on the outside of the first housing and the second housing, and the positioning structure is guided to fit the third housing along the height direction from the top plate to the bottom plate.

5. The housing assembly of the compressor module according to claim 4, characterized in that, The first slot protrudes outward from the first enclosure and extends along the height direction from the top plate to the bottom plate. The inner side of the third housing is provided with a guide structure that cooperates with the first slot.

6. The housing assembly of the compressor module according to claim 4, characterized in that, The second slot protrudes outward from the second enclosure and extends along the height direction from the top plate to the bottom plate. The inner side of the third housing is provided with a guide structure that guides and engages with the second slot along the height direction.

7. The housing assembly of the compressor module according to claim 6, characterized in that, The first snap-fit ​​portion protrudes outward from the first enclosure plate and forms a guide bevel and a groove. The guide bevel engages with the higher side of the second snap-fit ​​groove, and the groove engages with the lower side of the second snap-fit ​​groove.

8. The housing assembly of the compressor module according to claim 7, characterized in that, One side of the first snap-fit ​​portion is flush with the lower side of the second slot and can be guided and engaged with the guide structure.

9. The housing assembly of the compressor module according to claim 1, characterized in that, The positioning structure includes limiting portions disposed on opposite sides of the base plate, and the bottom of the first enclosure plate is fitted inside the two limiting portions.

10. An oxygen generator, characterized in that, The housing assembly includes the compressor module as described in any one of claims 1 to 9.

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