Compressor and its housing, sealing accessory and compressor assembly

Abstract

The utility model discloses a kind of compressor and its shell, sealing accessory and compressor assembly. Formed with vent and first mounting portion on shell, vent is suitable to be configured as the suction port or exhaust port of compressor, first mounting portion is used for detachably installing fixing part, the peripheral wall of vent has annular first sealing surface, the peripheral wall of vent is also formed with step portion, the end surface of step portion in the axial direction of vent has annular second sealing surface, second sealing surface and first sealing surface are connected and are all suitable to be sealed with the sealing element on fixing part. Thus, it is convenient to realize that shell is simultaneously sealed in radial and axial with sealing element at vent, improve the sealing effect of compressor.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, specifically to a compressor and its housing, sealing accessories, and compressor components. Background Technology

[0002] Under normal operating conditions, gas enters the compression chamber, is compressed to a higher pressure, and then discharged. When a compressor is taken off the production line, such as for maintenance or repair, it stops working or is in a non-working state. Typically, a protective gas, such as an inert gas, is filled into the compressor to prevent external gases and impurities from entering, reducing internal corrosion and protecting the compressor. Good gas sealing is crucial in this process. Related technologies use seals to prevent leakage of the protective gas and the entry of external impurities; however, the sealing effect needs improvement. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a compressor and its housing, sealing accessories, and compressor assembly. The housing can abut against and seal with a sealing element provided on a fixed member, so that the air inlet of the compressor is sealed simultaneously in the radial and axial directions, thereby improving the sealing effect of the compressor.

[0004] According to a first aspect of the present invention, a housing for a compressor has a vent and a first mounting portion formed on it. The vent is adapted to be configured as the intake or exhaust port of the compressor. The first mounting portion is used for detachably mounting a fixing member. The peripheral wall of the vent has an annular first sealing surface. A step portion is also formed on the peripheral wall of the vent. The end face of the step portion in the axial direction of the vent has an annular second sealing surface. The second sealing surface and the first sealing surface are connected and are both adapted to abut against and seal with a sealing member provided on the fixing member.

[0005] According to the embodiments of the present invention, the first sealing surface and the second sealing surface on the vent of the compressor are both adapted to form a stop seal with the sealing element on the fixing element, so that the vent of the compressor is sealed in both the radial and axial directions, thereby effectively preventing gas leakage and the entry of external impurities, and ensuring that the protective gas inside the compressor provides reliable protection for the compressor.

[0006] In some embodiments, the second sealing surface is a plane, or the second sealing surface has at least one first annular protrusion.

[0007] In some embodiments, the second sealing surface has a plurality of the first annular protrusions arranged sequentially along the radial direction of the vent.

[0008] In some embodiments, the stepped portion has an annular clearance groove on the end face of the vent in the axial direction, the clearance groove being disposed around the second sealing surface.

[0009] The compressor according to a second aspect of the present invention includes a housing for the compressor according to the first aspect of the present invention described above.

[0010] In some embodiments, the compressor includes a low-pressure housing, a support, and a high-pressure housing. The support is sandwiched between the high-pressure housing and the low-pressure housing, defining a high-pressure chamber between the support and the high-pressure housing, and defining a low-pressure chamber between the support and the low-pressure housing. The low-pressure housing and the high-pressure housing are respectively housings for the compressor according to an embodiment of the first aspect of the present invention. The vent on the low-pressure housing is an intake port, which communicates with the low-pressure chamber. The vent on the high-pressure housing is an exhaust port, which communicates with the high-pressure chamber.

[0011] In some embodiments, the compressor is used in a vehicle and is a horizontal rotary compressor; and / or, the refrigerant of the compressor is carbon dioxide.

[0012] A sealing accessory for a compressor according to a third aspect embodiment of the present invention includes: a fixing member, the fixing member including a connected main body and a second mounting part, the main body having a mounting hole, and the second mounting part being adapted to be detachably mounted on the housing of the compressor; a sealing member, the sealing member including a third mounting part and a sealing part connected sequentially along the axial direction of the mounting hole, the third mounting part being engaged in the mounting hole, the outer peripheral wall of the sealing part having an annular third sealing surface, and the end face of the sealing part opposite to the third mounting part having an annular fourth sealing surface, the third sealing surface and the fourth sealing surface being connected and both being adapted to abut against and seal against the wall surface of the compressor's vent, the vent being adapted to be configured as the compressor's intake port or exhaust port.

[0013] In some embodiments, a first groove is formed on the side end face of the third mounting portion opposite to the sealing portion, a second groove is formed on the side end face of the sealing portion opposite to the third mounting portion, and a fourth sealing surface is disposed around the second groove. The first groove and the second groove are opposite to each other along the axial direction of the mounting hole.

[0014] In some embodiments, at least one of the third sealing surface and the fourth sealing surface has a second annular protrusion.

[0015] In some embodiments, the third mounting portion is interference-fitted with the mounting hole; and / or, the radial dimension of the portion of the third mounting portion extending out of the mounting hole from the side opposite to the sealing portion is greater than the radial dimension of the mounting hole, and the radial dimension of the sealing portion is greater than the radial dimension of the mounting hole.

[0016] In some embodiments, the fastener further includes a reinforcing portion, the reinforcing portion and the second mounting portion are located on the same side of the main body and both protrude from the main body, the reinforcing portion is formed as an open annulus around the mounting hole, and the two ends of the reinforcing portion are respectively connected to the outer peripheral wall of the second mounting portion.

[0017] The compressor assembly according to the fourth aspect of the present invention includes a compressor according to the second aspect of the present invention and a sealing accessory according to the third aspect of the present invention, wherein a first sealing surface and a third sealing surface are in a stop-fitting relationship, a second sealing surface and a fourth sealing surface are in a stop-fitting relationship, and a second mounting portion is detachably mounted on the first mounting portion.

[0018] In some embodiments, the outer peripheral wall of the housing has a preset plane suitable for docking with an external pipeline, the vent penetrates the preset plane, and the main body covers the preset plane.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is an overall schematic diagram of a compressor assembly according to some embodiments of the present invention;

[0022] Figure 2 yes Figure 1 A schematic diagram of the compressor housing is shown.

[0023] Figure 3 yes Figure 1 A partially enlarged view of the sealing accessory assembly shown;

[0024] Figure 4 This is a schematic diagram of a sealing accessory according to some embodiments of the present invention;

[0025] Figure 5 yes Figure 4 Another schematic diagram of the sealing accessory shown;

[0026] Figure 6 yes Figure 4 A schematic diagram of the fastener shown;

[0027] Figure 7 yes Figure 6 Another schematic diagram of the fastener shown.

[0028] Figure label:

[0029] Compressor assembly 2000, compressor 1000, housing 100, vent 110, first sealing surface 110a, second sealing surface 110b, clearance groove 110c, step portion 110d, first annular protrusion 110e, first mounting portion 120, preset plane 130, sealing accessory 200, fastener 210, main body portion 210a, second mounting portion 210b, reinforcing portion 210c, mounting hole 210d, seal 220, third mounting portion 220a, sealing portion 220b, third sealing surface 220c, fourth sealing surface 220d, first groove 220e, second groove 220f, second annular protrusion 220g. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated 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, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0032] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0033] Hereinafter, with reference to the accompanying drawings, a housing 100 for a compressor 1000 according to a first aspect embodiment of the present invention will be described.

[0034] like Figure 1 and Figure 3As shown, a vent 110 and a first mounting portion 120 are formed on the housing 100. The vent 110 is adapted to be configured as an intake or exhaust port of the compressor 1000. The first mounting portion 120 is used for detachably mounting the fastener 210. The peripheral wall of the vent 110 has an annular first sealing surface 110a. A stepped portion 110d is also formed on the peripheral wall of the vent 110. The stepped portion 110d is axially (e.g., in the vent 110) of the vent 110. Figure 2 The end face on the AA' direction has an annular second sealing surface 110b, which is connected to the first sealing surface 110a. Both the second sealing surface 110b and the first sealing surface 110a are adapted to stop and seal with the sealing element 220 provided on the fixing element 210.

[0035] As can be seen, the first sealing surface 110a and the second sealing surface 110b can both be arranged around the central axis L1 of the vent 110. The first sealing surface 110a and the second sealing surface 110b can cooperate to define a mounting groove for accommodating the seal 220. When the seal 220 is disposed in the mounting groove, the first sealing surface 110a can abut against the outer peripheral wall of the seal 220 to seal, and the second sealing surface 110b can abut against the end face of the seal 220 in the axial direction of the vent 110 to seal. Thus, the first sealing surface 110a can achieve radial sealing with the seal 220. The second sealing surface 110b can achieve an axial seal with the sealing element 220, thereby improving the sealing effect at the vent 110. For example, when the compressor 1000 is off the production line, protective gas is introduced into the compressor 1000, and the sealing element 220 is set at the vent 110. The sealing method at the vent 110 can improve the sealing effect at the vent 110, which helps to prevent the leakage of the protective gas inside the compressor 1000 and avoids external impurities from entering the compressor 1000, thus improving the protection of the compressor 1000.

[0036] Furthermore, since the first mounting part 120 is adapted to be detachably connected to the fixing member 210, when it is necessary to seal the vent 110, the fixing member 210 can be installed on the first mounting part 120, and the sealing member 220 can be sealed against the first sealing surface 110a and the second sealing surface 110b respectively. When the compressor 1000 needs to work normally, the sealing member 220 and the fixing member 210 can be removed from the housing 100 without affecting the normal operation of the compressor 1000.

[0037] It is understood that the number of vents 110 on the housing 100 is not specifically limited in this embodiment; for example, there can be one vent 110, which can serve as both an intake port and an exhaust port, or there can be multiple vents 110, with at least one vent 110 serving as an intake port and / or at least one vent 110 serving as an exhaust port. Furthermore, the detachable connection method between the first mounting part 120 and the fixing member 210 is not specifically limited. For example, the first mounting part 120 and the fixing member 210 can be connected by bolts or screws. This design allows for convenient disassembly and assembly when needed, greatly improving the flexibility of maintenance and use.

[0038] In this embodiment of the application, the first sealing surface 110a and the second sealing surface 110b are connected, which may include: the first sealing surface 110a and the second sealing surface 110b being directly connected, or the first sealing surface 110a and the second sealing surface 110b being indirectly connected.

[0039] Compared to some technologies where the sealing element at the vent only seals the vent radially, the housing 100 of the compressor 100 according to this embodiment of the invention provides a first sealing surface 110a and a second sealing surface 110b connected at the vent 110. Both the first sealing surface 110a and the second sealing surface 110b on the vent 110 are adapted to provide a stop seal with the sealing element 220 on the fixing member 210, so that the vent 110 of the compressor 1000 is sealed simultaneously in the radial and axial directions. This effectively prevents the leakage of internal gas and the entry of external impurities, ensuring that the protective gas inside the compressor 1000 reliably protects the compressor 1000.

[0040] In some embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, the second sealing surface 110b has at least one first annular protrusion 110e, thus the second sealing surface 110b is constructed as an uneven surface. The fourth sealing surface 220d in the seal 220 is in close contact with the second sealing surface 110b. When the first annular protrusion 110e is under pressure, it squeezes the seal 220, which can further enhance the sealing performance, prevent gas leakage, and also increase the friction to prevent sliding or displacement between the planes, ensuring that the seal 220 and the corresponding wall surface of the vent 110 are in the correct position and in close contact, avoiding misalignment.

[0041] Of course, in other embodiments of this application, the second sealing surface 110b can also be a plane, which simplifies the structure of the second sealing surface 110b and facilitates processing.

[0042] In some embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, the second sealing surface 110b has a plurality of first annular protrusions 110e arranged radially along the vent 110. When the number of first annular protrusions 110e increases, the mating clearance path between the second sealing surface 110b and the corresponding end face of the seal 220 becomes more complex, which helps to further improve the axial sealing effect at the vent 110. Moreover, even if some areas are damaged, the other first annular protrusions 110e can still maintain their sealing effect, providing a more reliable seal. It can be understood that the plurality of first annular protrusions 110e can be arranged radially at intervals along the vent 110 or without intervals, and the cross-sectional shape of the first annular protrusions 110e is not specifically limited; for example, the cross-sectional shape of the first annular protrusions 110e can be trapezoidal or semi-circular, etc.

[0043] In some embodiments, such as Figure 1 and Figure 2 As shown, the stepped portion 110d has an annular clearance groove 110c on its axial end face at the vent 110, and the clearance groove 110c surrounds the second sealing surface 110b. It can be seen that the axial end face of the stepped portion 110d at the vent 110 may include a first part and a second part. The second part is formed as the second sealing surface 110b, and the first part is connected to the outer periphery of the second part, and the first part is recessed relative to the second part to form the clearance groove 110c. The design of the clearance groove 110c ensures that external components or pipes do not directly interfere with the second sealing surface 110b when assembled to the vent 110, ensuring their smooth installation. This also helps to increase the mating length between the external components or pipes and the housing 100 at the vent 110, facilitating reliable assembly.

[0044] The compressor 1000 according to a second aspect embodiment of the present invention includes a housing 100 for the compressor 1000 according to the first aspect embodiment of the present invention described above. This facilitates improved sealing performance of the compressor 1000 upon completion of production, enhancing its sealing protection. It is understood that the compressor 1000 can be a single-cylinder single-exhaust compressor, a single-cylinder double-exhaust compressor, a twin-cylinder compressor, etc., and can be a horizontal compressor or a vertical compressor, etc.

[0045] In some embodiments, the compressor 1000 includes a low-pressure housing, a support, and a high-pressure housing. The support is sandwiched between the high-pressure housing and the low-pressure housing, defining a high-pressure chamber between the support and the high-pressure housing, and defining a low-pressure chamber between the support and the low-pressure housing. This facilitates the forming and sealing of the high-pressure and low-pressure chambers and makes assembly easier. The low-pressure housing and the high-pressure housing are respectively housings 100 according to the first aspect embodiment of the present invention. The vent on the low-pressure housing is an intake port, communicating with the low-pressure chamber. The vent on the high-pressure housing is an exhaust port, communicating with the high-pressure chamber. For example, when the compressor 1000 is operating normally, the refrigerant enters the low-pressure chamber from the intake port, then enters the pump body structure of the compressor 1000 for compression. After compression, the refrigerant can flow to the high-pressure chamber and be discharged through the exhaust port.

[0046] As can be seen, the aforementioned partitioning of the bracket facilitates the use of the low-pressure chamber as a liquid storage chamber for the compressor 1000 to a certain extent, thus making the compressor 1000 suitable for scenarios without a liquid storage structure. Furthermore, if the compressor 1000 is an electric compressor, it may also include a motor structure (not shown in the figure). The motor structure can be used to drive the pump body structure 210 of the compressor 1000 to compress the refrigerant. In this case, the low-pressure chamber provides space for the motor structure. Thus, the bracket can isolate the high-temperature and high-pressure gas in the inner cavity from the thermal impact on the motor structure, reducing the risk of motor performance degradation or even damage due to overheating. This helps to reduce the operating temperature of the motor structure, alleviate the heat dissipation burden, extend the service life of the motor structure, improve the working stability and reliability of the compressor, and reduce the risk of compressor 1000 shutdown due to motor structure failure.

[0047] Optionally, the bracket is integrally formed into the low-pressure housing, for example, the bracket and the low-pressure housing are a single piece; or the bracket and the low-pressure housing are separate pieces.

[0048] In some embodiments, the compressor 1000 is used in a vehicle, i.e., the compressor 1000 is an automotive compressor. The compressor 1000 is a horizontal rotary compressor; and / or, the refrigerant of the compressor 1000 is carbon dioxide.

[0049] The horizontal rotary compressor has its central axis arranged horizontally, resulting in a lower overall height compared to a vertical compressor. This design helps reduce wind resistance during vehicle operation, lowers the overall vehicle height, and ensures a compact structure for the vehicle's air conditioning system. Furthermore, horizontal rotary compressors are typically equipped with various base mounting options, allowing for selective installation based on the vehicle's specific needs, making them more flexible and convenient. Horizontal rotary compressors also possess strong environmental adaptability, enabling stable operation under different climates and operating conditions, thus meeting the usage requirements of vehicles in different regions and seasons.

[0050] Carbon dioxide, when used as a refrigerant, has a higher intake and exhaust pressure compared to traditional refrigerants. Furthermore, carbon dioxide's excellent thermodynamic properties mean that, when the same cooling capacity is required, the compressor's compression chamber volume is not as large, allowing for a reduction in the overall size and weight of the compressor 1000. The carbon dioxide compressor 1000 can operate over a wide pressure range, exhibiting stable performance whether performing initial compression at low pressure or deep compression at high pressure. Therefore, the compressor 1000 of this embodiment facilitates obtaining an optimized compression ratio and provides highly efficient cooling performance in refrigeration systems, thereby reducing energy consumption and improving energy utilization. Of course, the refrigerant used in the compressor 1000 is not limited to this.

[0051] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the sealing accessory 200 for a compressor 1000 according to a third aspect embodiment of the present invention includes a fixing member 210 and a sealing member 220. The fixing member 210 includes a main body portion 210a and a second mounting portion 210b connected together. A mounting hole 210d is formed on the main body portion 210a. The second mounting portion 210b is adapted to be detachably mounted on the housing 100 of the compressor 1000. The sealing member 220 includes a third mounting portion 220a and a sealing portion 220b connected sequentially along the axial direction of the mounting hole 210d. The third mounting portion 220a is engaged in the mounting hole 210d so that the sealing member 220 can be mounted to the fixing member 210. The sealing member 220 will not easily detach from the fixing member 210, thus improving the problem of the sealing member 220 being easy to fall off or be lost.

[0052] The outer peripheral wall of the sealing part 220b has an annular third sealing surface 220c, and the end face of the sealing part 220 opposite to the third mounting part 220a has an annular fourth sealing surface 220d. The third sealing surface 220c and the fourth sealing surface 220d are connected, and both the third sealing surface 220c and the fourth sealing surface 220d are adapted to abut against and seal with the wall surface of the air vent 110 of the compressor 1000. The air vent 110 is adapted to be configured as the air intake or exhaust port of the compressor 1000.

[0053] As can be seen, the third sealing surface 220c and the fourth sealing surface 220d can both be arranged around the central axis of the sealing element 220. When the sealing element 220 is located at the vent 110, the third sealing surface 220c can abut against the peripheral wall of the vent 110, and the fourth sealing surface 220d can abut against the stepped portion 110d inside the vent 110 in the axial direction. Thus, the third sealing surface 220c can achieve radial sealing between the sealing element 220 and the corresponding wall surface of the vent 110, and the fourth sealing surface 220d can achieve axial sealing between the sealing element 220 and the corresponding wall surface of the vent 110, thereby improving the sealing effect at the vent 110. Similarly, when the compressor 1000 is off the production line, protective gas is introduced into the compressor 1000, and a sealing element 220 is installed at the vent 110. The sealing method of the sealing element 220 can improve the sealing effect at the vent 110, which helps to prevent the leakage of the protective gas inside the compressor 1000 and prevent external impurities from entering the compressor 1000, thus improving the protection of the compressor 1000.

[0054] Optionally, the fastener 210 is a plastic part (e.g., an injection molded part), and the seal 220 is a rubber part.

[0055] In some embodiments, such as Figure 4 and Figure 6 As shown, a first groove 220e is formed on the side end face of the third mounting part 220a opposite to the sealing part 220b, and a second groove 220f is formed on the side end face of the sealing part 220b opposite to the third mounting part 220a. A fourth sealing surface 220d is provided around the second groove 220f, and the first groove 220e and the second groove 220f are opposite to each other along the axial direction of the mounting hole 210d. Therefore, when the seal 220 is installed at the vent 110, the first groove 220e faces outward from the housing 100, and the second groove 220f faces inward from the housing 100. The axial thickness of the seal 220 corresponding to the first groove 220e is relatively thin. The first groove 220e can help the operator quickly locate the inflation position for filling the compressor 1000 with protective gas, making it easier to align the inflation needle with the location of the first groove 220e to easily penetrate the seal 220 and fill the compressor 1000 with protective gas, thus improving operational convenience. At the same time, it allows the sealing part 220b to deform better under pressure, improving the fit between the second sealing surface 110b and the fourth sealing surface 220d, reducing the risk of gas leakage, and improving the sealing performance at the vent 110.

[0056] In some embodiments, such as Figure 1 and Figure 3As shown, at least one of the third sealing surface 220c and the fourth sealing surface 220d has a second annular protrusion 220g. The second annular protrusion 220g can ensure that the first sealing surface 110a is in close contact with the third sealing surface 220c and / or ensure that the second sealing surface 110b is in close contact with the fourth sealing surface. This design ensures the sealing performance of the vent 110 in both the axial and radial directions, reduces the risk of leakage, and thus significantly improves the sealing performance.

[0057] It is understandable that when there are multiple second annular protrusions 220g, the multiple second annular protrusions 220g can be arranged sequentially along the axial direction of the seal 220.

[0058] In some embodiments, such as Figure 4 and Figure 5 As shown, the third mounting part 220a is interference-fitted with the mounting hole 210d. This interference fit provides high stability, ensuring the component is not easily loosened or detached. The interference fit eliminates the need for additional fasteners, simplifying the assembly process. Furthermore, this design achieves precise positioning and a good sealing effect, preventing gas leakage and improving overall rigidity and reliability; and / or, the third mounting part 220a extends out of the mounting hole 210d on the side opposite to the sealing part 220b. If the radial dimension of the third mounting part 220a is greater than the radial dimension of the mounting hole 210d, and the radial dimension of the sealing part 220b is greater than the radial dimension of the mounting hole 210d, then the portion of the third mounting part 220a extending out of the mounting hole 210d away from the sealing part 220b can abut against the sealing part 220b on both axial sides surrounding the edge of the mounting hole 210d. This facilitates reliable axial connection between the sealing member 220 and the fixing member 210 in the mounting hole 201. This method ensures a tight connection between the sealing member 220 and the fixing member 210, reducing the risk of loosening.

[0059] In some embodiments, such as Figure 1 and Figure 6 The fastener 210 also includes a reinforcing portion 210c. The reinforcing portion 210c and the second mounting portion 210b are located on the same side of the main body 210a, and both the reinforcing portion 210c and the second mounting portion 210b protrude from the main body 210a. The reinforcing portion 210c is formed into an open annular shape around the mounting hole 210d, and its two ends are respectively connected to the outer peripheral wall of the second mounting portion 210b. By forming a reinforcing structure around the mounting hole 210d, the reinforcing portion 210c significantly enhances the structural strength of the fastener 210 and reduces deformation or damage caused by external forces. At the same time, the open annular reinforcing portion 210c also improves the stability of the fastener 210, reduces loosening of components during vibration or movement, and helps to improve the reliability and durability of the fastener 210 under various working conditions.

[0060] A compressor assembly 2000 according to a fourth aspect embodiment of the present invention includes a compressor 1000 according to the second aspect embodiment of the present invention and a sealing accessory 200 according to the third aspect embodiment of the present invention. A first sealing surface 110a is in a stop-fitting engagement with a third sealing surface 220c, a second sealing surface 110b is in a stop-fitting engagement with a fourth sealing surface 220d, and a second mounting portion 210b is detachably mounted to a first mounting portion 120.

[0061] As can be seen, when the compressor 1000 is off the production line, the second mounting part 210b can be installed on the first mounting part 120, and the seal 220 can be fitted at the vent 110 to achieve a reliable seal at the vent 110 and improve the protection effect on the inside of the compressor 1000; while when the compressor 1000 is working normally, the second mounting part 210b can be removed from the first mounting part 120, and the seal 220 can be removed from the vent 110 to achieve normal air intake or exhaust at the vent 110.

[0062] In some embodiments, such as Figure 1 and Figure 2 As shown, the outer peripheral wall of the housing 100 has a pre-designed plane 130 suitable for docking with external pipelines. The vent 110 penetrates the pre-designed plane 130, and the main body 210a covers the pre-designed plane 130. The pre-designed plane 130 on the outer peripheral wall of the housing 100 facilitates docking and alignment with external pipelines, simplifies the installation process, and facilitates reliable sealing with external pipelines, reducing the risk of gas leakage. The main body 210a covering the pre-designed plane 130 can protect the pre-designed plane 130, improving the problem that the pre-designed plane 130 is easily damaged during the handling and movement of the compressor assembly 200, making it difficult to dock properly with external pipelines.

[0063] Furthermore, it should be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this application will not describe the various possible combinations separately. In addition, various different embodiments of this application can also be arbitrarily combined, as long as they do not violate the spirit of this application, they should also be regarded as the content disclosed in this application.

[0064] In the description of this utility model, it should be understood that the terms "center," "lateral," "length," "thickness," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that the term "open annulus" as used herein refers to an annulus with an opening (i.e., a non-closed annulus), where "annulus" is interpreted broadly, that is, not limited to "circular annulus," but can also include, for example, "polygonal annulus," etc.

[0065] Furthermore, features specified as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this utility model, unless otherwise stated, "multiple" means two or more. It should be noted in the description of this utility model that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0066] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0067] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A housing for a compressor, characterized in that, The housing has a vent and a first mounting portion. The vent is adapted to be configured as the compressor's intake or exhaust port, and the first mounting portion is used for detachable mounting of a fastener. The vent has a first annular sealing surface on its peripheral wall, and a stepped portion is also formed on the peripheral wall of the vent. The stepped portion has a second annular sealing surface on its axial end face of the vent. The second sealing surface and the first sealing surface are connected and are both adapted to abut against and seal with the sealing element provided on the fixing member.

2. The housing for a compressor according to claim 1, characterized in that, The second sealing surface is a plane, or the second sealing surface has at least one first annular protrusion.

3. The housing for a compressor according to claim 2, characterized in that, The second sealing surface has a plurality of first annular protrusions arranged sequentially along the radial direction of the vent.

4. The housing for a compressor according to any one of claims 1-3, characterized in that, The stepped portion has an annular clearance groove on the end face of the vent along the axial direction, and the clearance groove is arranged around the second sealing surface.

5. A compressor, characterized in that, Includes a housing for a compressor according to any one of claims 1-4.

6. The compressor according to claim 5, characterized in that, The system includes a low-pressure housing, a support, and a high-pressure housing. The support is sandwiched between the high-pressure housing and the low-pressure housing. A high-pressure cavity is defined between the support and the high-pressure housing, and a low-pressure cavity is defined between the support and the low-pressure housing. The low-pressure housing and the high-pressure housing are respectively housings for a compressor according to any one of claims 1-4. The vent on the low-pressure housing is an intake port, which is connected to the low-pressure chamber. The vent on the high-pressure housing is an exhaust port, which is connected to the high-pressure chamber.

7. The compressor according to claim 5 or 6, characterized in that, The compressor is used in vehicles. The compressor is a horizontal rotary compressor; and / or, The compressor uses carbon dioxide as its refrigerant.

8. A sealing accessory for a compressor, characterized in that, include: The fastener includes a connected main body and a second mounting part, the main body having a mounting hole, and the second mounting part being adapted to be detachably mounted to the housing of the compressor. A sealing element includes a third mounting portion and a sealing portion that are sequentially connected along the axial direction of the mounting hole. The third mounting portion is engaged in the mounting hole. The outer peripheral wall of the sealing portion has an annular third sealing surface. The end face of the sealing portion opposite to the third mounting portion has an annular fourth sealing surface. The third sealing surface and the fourth sealing surface are connected and both are adapted to abut against and seal against the wall surface of the compressor's vent. The vent is adapted to be configured as the compressor's intake port or exhaust port.

9. The sealing accessory for a compressor according to claim 8, characterized in that, A first groove is formed on the side end face of the third mounting part opposite to the sealing part, and a second groove is formed on the side end face of the sealing part opposite to the third mounting part. The fourth sealing surface is arranged around the second groove, and the first groove and the second groove are opposite to each other along the axial direction of the mounting hole.

10. The sealing accessory for a compressor according to claim 8, characterized in that, At least one of the third sealing surface and the fourth sealing surface has a second annular protrusion.

11. The sealing accessory for a compressor according to claim 8, characterized in that, The third mounting part is interference-fitted with the mounting hole; and / or The radial dimension of the portion of the third mounting part extending out of the mounting hole and away from the sealing part is greater than the radial dimension of the mounting hole, and the radial dimension of the sealing part is greater than the radial dimension of the mounting hole.

12. The sealing accessory for a compressor according to any one of claims 8-11, characterized in that, The fastener also includes a reinforcing part, which and the second mounting part are located on the same side of the main body and both protrude from the main body. The reinforcing part is formed as an open annular shape around the mounting hole, and the two ends of the reinforcing part are respectively connected to the outer peripheral wall of the second mounting part.

13. A compressor assembly, characterized in that, include: The compressor is the compressor according to any one of claims 5-7; A sealing accessory, wherein the sealing accessory is a sealing accessory for a compressor according to any one of claims 8-12, wherein the first sealing surface is in a stop-fitting relationship with the third sealing surface, the second sealing surface is in a stop-fitting relationship with the fourth sealing surface, and the second mounting part is detachably mounted on the first mounting part.

14. The compressor assembly according to claim 13, characterized in that, The outer peripheral wall of the housing has a preset plane suitable for docking with an external pipeline, the vent penetrates the preset plane, and the main body covers the preset plane.

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