Compressor and vehicle

Abstract

The utility model discloses a kind of compressor and vehicle, the compressor includes: shell assembly, shell assembly includes the low-pressure shell distributed along first direction, connecting bracket and high-pressure shell, low-pressure shell and connecting bracket define low-pressure cavity, high-pressure shell and connecting bracket define high-pressure cavity;Connecting assembly, connecting assembly includes connecting piece and conical gasket, connecting piece is along first direction and is arranged in high-pressure shell, connecting bracket and low-pressure shell, conical gasket is arranged between connecting piece and high-pressure shell or between connecting piece and low-pressure shell, at least part of conical gasket is inclined relative to first direction and make connecting piece and shell assembly elastically pre-tight in first direction.The utility model's compressor, the elastic potential energy generated by the deformation of the conical gasket of connecting assembly can be utilized, so that connecting piece and shell assembly are elastically pre-tight along first direction, to supplement the loss of shell assembly clamping force, to improve the reliability and stability of shell assembly connection.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to a compressor and a vehicle having the compressor. Background Technology

[0002] Electric vehicle compressors, especially carbon dioxide compressors, have high internal pressures, typically exceeding 10 MPa. The housing components, including the high-pressure and low-pressure housings, must withstand significant pressure loads, necessitating sealing and fastening between them. Screws are commonly used for fastening, connecting the high-pressure housing, brackets, low-pressure housing, and gaskets with multiple screws and applying sufficient preload. The housing components are made of aluminum alloy, while the screws are made of steel. The significant difference in their coefficients of thermal expansion leads to inconsistent thermal deformation during heating and cooling, causing fluctuations in screw axial force and housing clamping force. Furthermore, significant attenuation of screw torque or housing clamping force can cause refrigerant or oil leakage, indicating room for improvement. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a compressor whose housing assembly has a reliable connection, and which can utilize the elastic potential energy generated by the deformation of the conical gasket of the connecting assembly to elastically pre-tighten the connecting parts and the housing assembly along a first direction, so as to compensate for the loss of clamping force of the housing assembly, thereby improving the reliability and stability of the housing assembly connection.

[0004] A compressor according to an embodiment of the present invention includes: a housing assembly, the housing assembly including a low-pressure housing, a connecting bracket, and a high-pressure housing distributed along a first direction, the low-pressure housing and the connecting bracket defining a low-pressure chamber, a driving unit provided inside the low-pressure housing, the high-pressure housing and the connecting bracket defining a high-pressure chamber, a pump body provided inside the high-pressure chamber, the driving unit being poweredly connected to the pump body, and refrigerant entering the low-pressure chamber being adapted to pass through the connecting bracket into the high-pressure chamber, be compressed, and then discharged; and a connecting assembly, the connecting assembly including a connector and a conical gasket, the connector passing through the high-pressure housing, the connecting bracket, and the low-pressure housing along the first direction, the conical gasket being disposed between the connector and the high-pressure housing or between the connector and the low-pressure housing, at least a portion of the conical gasket being inclined relative to the first direction and causing the connector and the housing assembly to be elastically pre-tightened in the first direction.

[0005] According to the compressor of this utility model embodiment, by using a connector and a conical gasket in combination, the high-pressure housing, the connecting bracket and the low-pressure housing are reliably connected. The conical gasket has deformation capability, and the elastic potential energy generated by the deformation of the conical gasket can be used to elastically pre-tighten the connector and the housing assembly along the first direction to compensate for the loss of clamping force of the housing assembly, thereby improving the reliability and stability of the housing assembly connection. It can avoid the leakage of gas and other media due to unreliable connection of the housing assembly caused by the attenuation of clamping force of the connector or housing assembly, thereby improving the working performance of the compressor. Moreover, it has a simple structure, low cost and good performance.

[0006] According to some embodiments of the compressor of the present utility model, the connecting member includes a rod body and a connecting head, the connecting head is connected to one end of the rod body, and the rod body passes through the high-pressure housing, the connecting bracket and the low-pressure housing;

[0007] The rod body is threadedly connected to one of the high-pressure housing and the low-pressure housing, and the conical gasket is elastically pressed against the other of the high-pressure housing and the low-pressure housing between the connecting head and the connecting head.

[0008] According to some embodiments of the present invention, the compressor has a conical gasket having a first side and a second side that are opposite to each other along a first direction. The first side includes a first pressing surface and a first conical surface distributed radially along the conical gasket. The first pressing surface presses against the connecting head. The second side includes a second pressing surface and a second conical surface distributed radially along the conical gasket. The second pressing surface presses against the other of the high-pressure housing and the low-pressure housing. Both the first conical surface and the second conical surface are inclined relative to the first direction.

[0009] According to some embodiments of the compressor of the present invention, the conical gasket has a clearance hole, and the rod portion passes through the clearance hole;

[0010] Both the first pressing surface and the first conical surface are constructed as annular, with the first pressing surface surrounding the clearance hole and the first conical surface surrounding the first pressing surface.

[0011] And / or, both the second pressing surface and the second conical surface are constructed as annular, with the second conical surface surrounding the clearance hole and the second pressing surface surrounding the first conical surface.

[0012] According to some embodiments of the compressor of the present invention, the first pressing surface is constructed as a plane perpendicular to the first direction;

[0013] And / or, the second pressing surface is constructed as a plane perpendicular to the first direction.

[0014] According to some embodiments of the compressor of the present invention, the first conical surface is parallel to the second conical surface;

[0015] And / or, the distance between the first conical surface and the second conical surface is t, and satisfies: 1.7mm≤t≤2.5mm.

[0016] According to some embodiments of the compressor of the present invention, the radial direction of the conical gasket is perpendicular to the first direction;

[0017] The first conical surface and the radial direction of the conical gasket are at an angle α, and / or the second conical surface and the radial direction of the conical gasket are at an angle α, satisfying: 10°≤a≤20°.

[0018] According to some embodiments of the compressor of the present invention, the height of the first conical surface in the first direction is h, and / or the height of the second conical surface in the first direction is h, and satisfies: 0.4mm≤h≤0.8mm.

[0019] According to some embodiments of the compressor of the present invention, the width of the first pressing surface in the radial direction of the conical gasket is L, and / or the width of the second pressing surface in the radial direction of the conical gasket is L, and satisfies: 0.3mm≤L≤1mm.

[0020] According to some embodiments of the compressor of this utility model, the inner diameter of the second conical surface is D1, and satisfies: 8.2mm≤D1≤8.7mm;

[0021] And / or, the outer diameter of the second conical surface is D2, and satisfies: 12mm≤D2≤15mm.

[0022] According to some embodiments of the present invention, the compressor includes a plurality of connecting components, which are circumferentially spaced apart from the housing assembly; and / or, a first seal is provided between the high-pressure housing and the connecting bracket; and / or, a second seal is provided between the low-pressure housing and the connecting bracket; and / or, the refrigerant applicable to the compressor includes carbon dioxide; and / or, the compressor is suitable for vehicles.

[0023] This utility model also proposes a vehicle.

[0024] The vehicle according to the present invention is equipped with a compressor according to any of the above embodiments.

[0025] The advantages of the vehicle and the compressor mentioned above compared to the prior art are the same, and will not be repeated here.

[0026] 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

[0027] 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:

[0028] Figure 1 This is a side view of a compressor according to an embodiment of the present utility model;

[0029] Figure 2 This is a cross-sectional view of the compressor according to an embodiment of the present utility model;

[0030] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0031] Figure 4 This is a top view of a compressor according to an embodiment of the present utility model;

[0032] Figure 5 This is a cross-sectional view of the tapered gasket of the connecting assembly of the compressor according to an embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of the conical gasket of the connecting assembly of the compressor according to an embodiment of the present utility model;

[0034] Figure 7 This is a typical pressure characteristic curve of the conical gasket of the connecting assembly of the compressor according to an embodiment of the present invention.

[0035] Figure 8 This is a durability test data sheet for the compressor housing assembly without tapered gaskets according to an embodiment of the present invention;

[0036] Figure 9 This is a durability test data sheet for the housing assembly of a compressor with conical gaskets according to an embodiment of the present invention;

[0037] Figure 10 This is a typical pressure characteristic curve two of the conical gasket of the compressor connection assembly according to an embodiment of the present invention;

[0038] Figure 11 The typical pressure characteristic curve of the conical gasket of the compressor connection assembly according to an embodiment of the present invention is shown in Figure 3.

[0039] Figure 12 This is a statistical table of yield load and flattening load of conical gaskets of different specifications for the connecting components of the compressor according to embodiments of the present invention.

[0040] Figure label:

[0041] Compressor 100,

[0042] Housing assembly 1, high-pressure housing 11, high-pressure chamber 111, connecting bracket 12, low-pressure housing 13, low-pressure chamber 131, connecting assembly 2, connector 21, rod body 211, connecting head 212, conical gasket 22, first side 221, first pressing surface 2211, first conical surface 2212, second side 222, second pressing surface 2221, second conical surface 2222, clearance hole 223, first seal 3, second seal 4. Detailed Implementation

[0043] 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.

[0044] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, 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. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0045] In the description of this utility model, it should be noted 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.

[0046] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.

[0047] The following is for reference. Figures 1-12 The compressor 100 according to an embodiment of the present invention, by using the connecting member 21 and the conical gasket 22 in cooperation, makes the high-pressure housing 11, the connecting bracket 12 and the low-pressure housing 13 reliably connected. The conical gasket 22 has the ability to deform. The elastic potential energy generated by the deformation of the conical gasket 22 can be used to elastically pre-tighten the connecting member 21 and the housing assembly 1 along the first direction to make up for the loss of clamping force of the housing assembly 1, thereby improving the reliability and stability of the connection of the housing assembly 1. It can avoid the leakage of gas and other media due to the unreliability of the connection of the housing assembly 1 after the clamping force of the connecting member 21 or the housing assembly 1 weakens, thereby improving the working performance of the compressor 100.

[0048] like Figures 1-12 As shown, a compressor 100 according to an embodiment of the present invention includes: a housing assembly 1 and a connecting assembly 2.

[0049] The housing assembly 1 includes a low-pressure housing 13, a connecting bracket 12, and a high-pressure housing 11 distributed along a first direction. The low-pressure housing 13 and the connecting bracket 12 define a low-pressure chamber 131. A drive unit is provided inside the low-pressure housing 13. The high-pressure housing 11 and the connecting bracket 12 define a high-pressure chamber 111. A pump body is provided inside the high-pressure chamber 111. The drive unit is poweredly connected to the pump body. The refrigerant entering the low-pressure chamber 131 is adapted to pass through the connecting bracket 12 into the high-pressure chamber 111, be compressed, and then discharged.

[0050] Specifically, the housing assembly 1 is the main structure of the compressor 100, used to support and protect the internal structure of the compressor 100. The high-pressure housing 11 is the part of the compressor 100 used to contain high-pressure gas; it is typically made of robust and durable materials and can withstand the pressure and temperature of the high-pressure gas. The connecting bracket 12 is a key component connecting the high-pressure housing 11 and the low-pressure housing 13, providing necessary support and stability. The low-pressure housing 13 is the part of the compressor 100 used to contain low-pressure gas; compared to the high-pressure housing 11, its internal pressure is lower, but it still needs to withstand certain pressure and temperature.

[0051] Furthermore, the high-pressure housing 11, the connecting bracket 12, and the low-pressure housing 13 are distributed along a first direction, wherein the first direction can be up-down or left-right, such as... Figure 1As shown, the first direction can be vertical, the high-pressure housing 11 can be located above the low-pressure housing 13, and the connecting bracket 12 is located between the high-pressure housing 11 and the low-pressure housing 13, so that the connecting bracket 12 and the high-pressure housing 11 together define the high-pressure chamber 111 for containing high-pressure gas, and the connecting bracket 12 and the low-pressure housing 13 together define the low-pressure chamber 131 for containing low-pressure gas. The separation between the high-pressure chamber 111 and the low-pressure chamber 131 is achieved by the connecting bracket 12, ensuring that the high-pressure gas and the low-pressure gas do not mix with each other, thereby ensuring the efficiency and performance of the compressor 100.

[0052] In this embodiment, the compressor 100 can be a rotary compressor. The low-pressure housing 13 is provided with a drive unit, which can be configured as a drive motor for outputting driving force. The high-pressure housing 11 is provided with a pump body for compressing gas. The drive motor is connected to the pump body to realize the movement of the pump body. The pump body can include components such as a cylinder, piston, and rotor. By driving the rotor and piston to move relative to the cylinder through the drive motor, the compression of the refrigerant can be realized.

[0053] In this way, when the compressor 100 is working, the low-pressure refrigerant first enters the low-pressure chamber 131, and then enters the high-pressure chamber 111 through the connecting bracket 12. At the same time as entering the high-pressure chamber 111, the low-pressure refrigerant is compressed and becomes a high-pressure, high-temperature gas. The high-temperature, high-pressure gas is discharged from one side of the high-pressure housing 11, so as to realize the compression and discharge of the refrigerant.

[0054] Furthermore, the connecting bracket 12 not only connects the high-pressure housing 11 and the low-pressure housing 13, but also provides the necessary support and stability, ensuring the stability and reliability of the compressor 100 during operation and preventing damage caused by vibration or impact.

[0055] The connecting assembly 2 includes a connector 21 and a tapered gasket 22. The connector 21 passes through the high-pressure housing 11, the connecting bracket 12 and the low-pressure housing 13 along a first direction. The tapered gasket 22 is disposed between the connector 21 and the high-pressure housing 11 or between the connector 21 and the low-pressure housing 13. At least a portion of the tapered gasket 22 is inclined relative to the first direction and elastically pre-tightens the connector 21 and the housing assembly 1 in the first direction.

[0056] Specifically, the conical gasket 22 is located between the connector 21 and the housing assembly 1. At least a portion of the conical gasket 22 is configured to be inclined along a first direction, that is, the conical gasket 22 forms an inclination angle with the first direction. At least a portion of the conical gasket 22 can be inclined away from the pre-tightening direction, and the conical gasket 22 has a certain deformation capacity, that is, when the conical gasket 22 deforms, it can store a certain elastic potential energy.

[0057] Thus, with the connector 21 sequentially passing through the conical gasket 22, the high-pressure housing 11, the connecting bracket 12, and the low-pressure housing 13 along the first direction, the connecting assembly 2 can connect and fix the high-pressure housing 11, the connecting bracket 12, and the low-pressure housing 13. Furthermore, after the connecting assembly 2 is connected to the housing assembly 1, under the action of the connector 21, the conical gasket 22 will deform between the connector 21 and the housing assembly 1, storing a certain amount of elastic potential energy. This allows the conical gasket 22 to elastically pre-tighten the connector 21 and the housing assembly 1 along the first direction, thereby improving the connection strength between the connector 21 and the housing assembly 1.

[0058] Furthermore, during the long-term operation of the compressor 100, the housing assembly 1 will undergo thermal deformation to varying degrees during the heating and cooling processes, which will affect the clamping force between the high-pressure housing 11, the connecting bracket 12, and the low-pressure housing 13. When the clamping force between the high-pressure housing 11, the connecting bracket 12, and the low-pressure housing 13 decreases, the conical gasket 22 will release its previous elastic potential energy and convert it into elastic force, which can improve the clamping force between the high-pressure housing 11, the connecting bracket 12, and the low-pressure housing 13, thereby improving the reliability of the connection of the housing assembly 1.

[0059] The conical gasket 22 can be positioned between the connector 21 and the high-pressure housing 11, or it can be positioned between the connector 21 and the low-pressure housing 13. In other words, the connector 21 can be configured to pass through the conical gasket 22, the high-pressure housing 11, the connecting bracket 12 and the low-pressure housing 13 in sequence along the first direction, or it can be configured to pass through the conical gasket 22, the low-pressure housing 13, the connecting bracket 12 and the high-pressure housing 11 in sequence along the first direction. The connection method is diverse and can be flexibly selected.

[0060] Therefore, by using the connector 21 and the conical gasket 22 together, the high-pressure housing 11, the connecting bracket 12 and the low-pressure housing 13 are reliably connected. The conical gasket 22 has the ability to deform, and the elastic potential energy generated by the deformation of the conical gasket 22 can be used to elastically pre-tighten the connector 21 and the housing assembly 1 along the first direction to make up for the loss of clamping force of the housing assembly 1, thereby improving the reliability and stability of the connection of the housing assembly 1. It can avoid the leakage of gas and other media due to the unreliability of the connection of the housing assembly 1 after the clamping force of the connector 21 or the housing assembly 1 has weakened. This improves the working performance of the compressor 100, and the structure is simple, the cost is low and the effect is good.

[0061] In some embodiments, the connector 21 includes a rod portion 211 and a connecting head 212. The connecting head 212 is connected to one end of the rod portion 211. The rod portion 211 passes through the high-pressure housing 11, the connecting bracket 12, and the low-pressure housing 13. The rod portion 211 is threadedly connected to one of the high-pressure housing 11 and the low-pressure housing 13. The tapered gasket 22 is elastically pressed between the other of the high-pressure housing 11 and the low-pressure housing 13 and the connecting head 212.

[0062] In other words, the rod body 211 can be threaded to the high-pressure housing 11, and the conical gasket 22 can be elastically pressed between the low-pressure housing 13 and the connecting head 212. Alternatively, the rod body 211 can be threaded to the low-pressure housing 13, and the conical gasket 22 can be elastically pressed between the high-pressure housing 11 and the connecting head 212. In either case, the housing assembly 1 can be connected and fixed by the connector 21 and the conical gasket 22. The connection methods are diverse and there are many options.

[0063] Specifically, in this embodiment, such as Figure 1 and Figure 2 As shown, a conical gasket 22 is disposed between the high-pressure housing 11 and the connecting head 212, meaning the conical gasket 22 elastically presses against the high-pressure housing 11 and the connecting head 212, and the connecting head 212 can limit and press the conical gasket 22. The connecting head 212 is connected to one end of the rod portion 211. An external thread can be formed on the outer portion of the rod portion 211 away from the connecting head 212, and the low-pressure housing 13 has an internal thread extending in a first direction, thus achieving a threaded connection between the rod portion 211 and the low-pressure housing 13. Furthermore, the high-pressure housing 11 and the connecting bracket 12 have connecting holes for the rod portion 211 to pass through.

[0064] Furthermore, the connector 21 can be configured as a connecting bolt, which is sequentially passed through the conical gasket 22, the high-pressure housing 11, the connecting bracket 12, and the low-pressure housing 13 along the first direction. After the connecting bolt is locked to the low-pressure housing 13, the conical gasket 22 deforms and presses against the high-pressure housing 11 and the connecting bolt, allowing the conical gasket 22 to store elastic potential energy. The conical gasket 22 also ensures a tight connection between the housing components 1. The connection method is simple and the installation is reliable.

[0065] In some embodiments, the conical gasket 22 has a first side 221 and a second side 222 that are opposite to each other along a first direction. The first side 221 includes a first pressing surface 2211 and a first conical surface 2212 distributed radially along the conical gasket 22. The first pressing surface 2211 presses against the connecting head 212. The second side 222 includes a second pressing surface 2221 and a second conical surface 2222 distributed radially along the conical gasket 22. The second pressing surface 2221 presses against the other of the high-pressure housing 11 and the low-pressure housing 13. Both the first conical surface 2212 and the second conical surface 2222 are inclined relative to the first direction.

[0066] Specifically, one side of the conical gasket 22 includes a first pressing surface 2211 and a first conical surface 2212. The first pressing surface 2211 enables the conical gasket 22 to press against the connecting head 212. The second side 222 of the conical gasket 22 includes a second pressing surface 2221 and a second conical surface 2222. The second pressing surface 2221 enables the conical gasket 22 to press against one of the high-pressure housing 11 and the low-pressure housing 13. The first conical surface 2212 and the second conical surface 2222 can be used for deformation to generate elastic potential energy.

[0067] Furthermore, such as Figure 3 and Figure 5 As shown, the conical gasket 22 has a first side 221 and a second side 222 along the vertical direction, and the first side 221 and the second side 222 are opposite to each other. The first side 221 is located on the upper side of the conical gasket 22, and the second side 222 is located on the lower side of the conical gasket 22. The first side 221 includes a first pressing surface 2211 and a first conical surface 2212, which are connected in sequence along the radial direction of the conical gasket 22. The first conical surface 2212 can be disposed on the radial outer side of the first pressing surface 2211 of the conical gasket 22, so that the middle area of ​​the first side 221 can be used for pressing and engaging with the connecting head 212, thereby improving the contact reliability between the conical gasket 22 and the connecting head 212.

[0068] Furthermore, the second side 222 includes a second pressing surface 2221 and a second conical surface 2222, which are sequentially connected along the radial direction of the conical gasket 22. The second conical surface 2222 can be disposed on the radial inner side of the second pressing surface 2221 of the conical gasket 22, allowing the outer peripheral area of ​​the second side 222 to be used for pressing and engaging with one of the high-pressure housing 11 and the low-pressure housing 13, thereby improving the contact reliability between the conical gasket 22 and the housing assembly 1. Additionally, both the first conical surface 2212 and the second conical surface 2222 are inclined to the first direction, allowing the conical gasket 22 to provide a certain supporting function on the first conical surface 2212 and the second conical surface 2222, resisting the forces from the connecting head 212 and the housing assembly 1, thus improving the elasticity of the conical gasket 22. Its arrangement is simple, its structural characteristics are obvious, and it is beneficial to improve the installation reliability of the housing assembly 1.

[0069] It should also be noted that the conical gasket 22 can be configured as a rectangular or polygonal cross-section having a first pressing surface 2211, a first conical surface 2212, a second pressing surface 2221, and a second conical surface 2222. In the design, it can be formed by rotating the rectangular or polygonal cross-section around the center. In the processing, it can be processed by cutting or other methods.

[0070] Therefore, by providing conical surfaces on both the first side 221 and the second side 222, the deformation capacity of the conical gasket 22 can be improved, thereby increasing the elastic potential energy stored in the conical gasket 22. Furthermore, since both the first side 221 and the second side 222 are provided with abutting surfaces, the conical gasket 22 can be press-fitted with the connecting head 212 and the housing assembly 1 respectively, thus achieving the characteristics of a general gasket and improving the reliability and stability of the connection between the connector 21 and the housing assembly 1.

[0071] In some embodiments, the tapered washer 22 has a clearance hole 223, and the rod portion 211 passes through the clearance hole 223. Specifically, for example... Figure 5 and Figure 6 As shown, the clearance hole 223 is located at the center of the conical gasket 22 and extends through the center of the conical gasket 22 along the first direction. The clearance hole 223 can be a circular hole with an inner diameter larger than the outer diameter of the rod body 211, which facilitates the rod body 211 to pass through the clearance hole 223 and achieves effective clearance of the rod body 211.

[0072] The first pressing surface 2211 and the first conical surface 2212 are both constructed as annular, with the first pressing surface 2211 arranged around the clearance hole 223 and the first conical surface 2212 arranged around the first pressing surface 2211.

[0073] Specifically, the conical gasket 22 can be configured as an annular structure, and both the first pressing surface 2211 and the first conical surface 2212 are constructed as annular. The first pressing surface 2211 and the first conical surface 2212 are distributed around the relief hole 223, with the first pressing surface 2211 close to the relief hole 223 and the first conical surface 2212 distributed around the side of the first pressing surface 2211 away from the relief hole 223. This allows the first pressing surface 2211 and the first conical surface 2212 to form a radially distributed annular structure. In this way, the first pressing surface 2211 can press against the connecting head 212 in a circumferential manner, increasing the contact area between the connecting head 212 and the conical gasket 22, making the conical gasket 22 and the connecting head 212 stably fit together, thereby improving the sealing performance of the conical gasket 22 and the connecting head 212.

[0074] In other embodiments, the second pressing surface 2221 and the second conical surface 2222 are both constructed as annular, with the second conical surface 2222 surrounding the clearance hole 223 and the second pressing surface 2221 surrounding the first conical surface 2212.

[0075] Specifically, both the second pressing surface 2221 and the second conical surface 2222 are constructed as annular. The second pressing surface 2221 and the second conical surface 2222 are distributed around the clearance hole 223. The second conical surface 2222 is close to the clearance hole 223, and the second pressing surface 2221 is distributed around the side of the second conical surface 2222 away from the clearance hole 223. This allows the second pressing surface 2221 and the second conical surface 2222 to form a radially distributed annular structure. In this way, the second pressing surface 2221 can be pressed against one of the high-pressure housing 11 and the low-pressure housing 13 in a circumferential ring, which increases the contact area between the housing assembly 1 and the conical gasket 22, making the conical gasket 22 and the housing assembly 1 stably fit together, thereby improving the sealing performance between the conical gasket 22 and the housing assembly 1.

[0076] Therefore, the above-mentioned design improves the overall structural strength of the conical gasket 22, and ensures reliable connection and good sealing between the conical gasket 22, the connector 21, and the housing assembly 1, thereby enhancing the sealing performance of the compressor 100. Furthermore, the conical gasket 22 is simple and easy to manufacture, reducing processing costs.

[0077] In some embodiments, the first pressing surface 2211 is constructed as a plane perpendicular to the first direction, and the plane is distributed around the outer periphery of the clearance hole 223. In this way, when the connecting head 212 of the connector 21 and the first pressing surface 2211 are pressed together in a circumferential manner, the degree of contact between the connecting head 212 and the conical gasket 22 in the first direction is more uniform, and the contact between the connecting head 212 and the conical gasket 22 is tighter, which improves the uniformity of the pressing fit between the two, thereby improving the connection reliability between the conical gasket 22 and the connecting head 212, and improving the sealing between the two, reducing the risk of gas leakage from the clearance hole 223.

[0078] In other embodiments, the second pressing surface 2221 is constructed as a plane perpendicular to the first direction, and the plane is distributed around the outer periphery of the clearance hole 223. In this way, under the action of the connector 21, when the second pressing surface 2221 is pressed against one of the high-pressure housing 11 and the low-pressure housing 13 in a circumferential ring, the fit between the housing assembly 1 and the conical gasket 22 in the first direction is more uniform, and the fit between the housing assembly 1 and the conical gasket 22 is tighter, which improves the uniformity of the pressing fit between the two, thereby improving the connection reliability between the conical gasket 22 and the housing assembly 1, and improving the sealing between the two, reducing the risk of gas leakage from the connection between the two.

[0079] Therefore, through the above arrangement, the first pressing surface 2211 and the second pressing surface 2221 can be distributed in parallel and both are perpendicular to the first direction. This makes the processing of the conical gasket 22 simpler and more convenient, and makes the pressing fit between the conical gasket 22 and the connecting head 212 and the housing assembly 1 more reliable. This improves the sealing performance of the compressor 100, reduces the risk of leakage at the connection position of the compressor 100, and improves the stability of the compressor 100 operation.

[0080] In some embodiments, the first conical surface 2212 and the second conical surface 2222 are parallel, wherein the first conical surface 2212 and the second conical surface 2222 extend obliquely relative to the first direction and are distributed in parallel, which makes the thickness between the first conical surface 2212 and the second conical surface 2222 more uniform, thereby ensuring the structural stability of the conical gasket 22 and improving the structural strength of the conical gasket 22. Furthermore, it is simple and convenient to process and has high reliability.

[0081] Therefore, by setting the first conical surface 2212 and the second conical surface 2222 to be parallel, the structure formed by the first conical surface 2212 and the second conical surface 2222 can resist the force from the connecting head 212 and the housing assembly 1, thereby improving the deformation stability of the structure formed by the first conical surface 2212 and the second conical surface 2222, so as to improve the elastic potential energy stored by the conical gasket 22 through deformation, thereby enhancing the ability of the conical gasket 22 to compensate for the attenuation of the clamping force of the housing assembly 1 or the connector 21.

[0082] In other embodiments, the distance between the first conical surface 2212 and the second conical surface 2222 is t, and satisfies: 1.7mm≤t≤2.5mm. Specifically, the first conical surface 2212 and the second conical surface 2222 are distributed in parallel and spaced apart to form a spacing t. The value of t can be 1.7mm, 1.9mm, 2.0mm, 2.2mm, 2.5mm, etc. By setting the above values, a certain structural thickness can be formed between the first conical surface 2212 and the second conical surface 2222, which can improve the structural strength of the conical gasket 22 and enable the first conical surface 2212 and the second conical surface 2222 to have good deformation release capability, thereby improving the elastic characteristics of the conical gasket 22 to meet the actual design requirements. The distance between the first conical surface 2212 and the second conical surface 2222 can also be set to other values, not limited to those listed above. Setting it within the above range makes the processing thickness of the conical gasket 22 not fixed, improving the processing flexibility of the conical gasket 22 and resulting in a high product qualification rate.

[0083] The first conical surface 2212 and the second conical surface 2222 are important structures of the conical gasket 22. The distance between the first conical surface 2212 and the second conical surface 2222 cannot be set too small. If it is too small, it will not only reduce the structural strength of the first conical surface 2212 and the second conical surface 2222, thus reducing the structural strength of the conical gasket 22, but also reduce the elastic potential energy of the conical gasket 22 during deformation. At the same time, if it is too small, the conical gasket 22 will not be able to resist the clamping force from the connector 21, resulting in a large compression deformation of the conical gasket 22. Furthermore, after the clamping force of the housing assembly 1 weakens, it will be unable to exert a clamping force. This would reduce the tightness of the connection of the housing assembly 1, affecting the normal operation of the compressor 100; and the distance between the first conical surface 2212 and the second conical surface 2222 cannot be set too large. If it is too large, the overall thickness of the conical gasket 22 will increase, making the conical gasket 22 structurally heavy. When the connector 21 is pre-tightened toward the housing assembly 1, the bearing capacity of the conical gasket 22 is large, and the deformation is small. That is, it cannot effectively deform and store the set elastic potential energy, so the conical gasket 22 cannot effectively supplement the clamping force of the housing assembly 1 or the connector 21.

[0084] In some embodiments, the radial direction of the conical gasket 22 is perpendicular to the first direction, wherein the first direction can be the axial direction of the conical gasket 22 and the installation direction of the connector 21. In this way, the connector 21 can be installed in a direction perpendicular to the radial direction of the conical gasket 22, which can make the pressing fit between the conical gasket 22 and the connector 21 reliable, and the installation method is simple and convenient. Moreover, with the above settings, the processing of the conical gasket 22 can be simpler and more convenient.

[0085] The radial angle between the first conical surface 2212 and the conical gasket 22 is α, and / or the radial angle between the second conical surface 2222 and the conical gasket 22 is α, and satisfies: 10°≤a≤20°.

[0086] In other words, the radial angle between the first conical surface 2212 and the second conical surface 2222 and the conical gasket 22 can both be set to 'a', or the radial angle between one of the first conical surface 2212 and the second conical surface 2222 and the conical gasket 22 can be set to 'a'. There are various ways to set these angles, and you can choose the appropriate method based on the actual situation.

[0087] Specifically, in this embodiment, the first conical surface 2212 extends obliquely relative to the first direction and in the direction close to the first pressing surface 2211, and the second conical surface 2222 extends obliquely relative to the first direction and in the direction close to the clearance hole 223, and as shown... Figure 5 As shown, the radial angle between the first conical surface 2212 and the second conical surface 2222 and the conical gasket 22 is α, and the included angle α can be 10°, 12°, 15°, 16°, 18°, 20°, etc. By setting the above values, the first conical surface 2212 and the second conical surface 2222 can both form a supporting effect in the radial direction of the conical gasket 22. Furthermore, by limiting the included angle and the distance between the first conical surface 2212 and the second conical surface 2222, the structural strength of the conical gasket 22 can be stabilized, and it can adapt to the deformation of the first conical surface 2212 and the second conical surface 2222 under the tightening action of the connector 21, providing a reserve of elastic potential energy.

[0088] Furthermore, the radial angle between the first conical surface 2212 and the second conical surface 2222 and the conical gasket 22 cannot be set too small. Although a small angle can still ensure the structural strength of the conical gasket 22, it will reduce the deformation of the conical gasket 22, thereby reducing the elastic potential energy reserve of the conical gasket 22. This reduces the amount of clamping force supplemented by the conical gasket 22 on the housing assembly 1 and the connector 21. On the other hand, the radial angle between the first conical surface 2212 and the second conical surface 2222 and the conical gasket 22 cannot be set too large. An excessively large angle will reduce the structural strength of the conical gasket 22. In addition, while reducing the structural strength, it cannot resist the force from the connector 21 or the housing assembly 1, thus reducing the elastic potential energy reserve capacity of the conical gasket 22. Furthermore, an excessively large angle will also increase the axial dimension of the conical gasket 22, making the structure thicker and heavier, and increasing the material control cost.

[0089] In some embodiments, the height of the first conical surface 2212 in the first direction is h, and / or the height of the second conical surface 2222 in the first direction is h, and satisfies: 0.4mm≤h≤0.8mm.

[0090] In other words, the height of both the first conical surface 2212 and the second conical surface 2222 in the first direction can be set to h, or the height of one of the first conical surface 2212 and the second conical surface 2222 in the first direction can be set to h. There are various ways to set these heights, and the appropriate method can be selected according to the actual situation.

[0091] Specifically, in this embodiment, such as Figure 5 As shown, the height of both the first conical surface 2212 and the second conical surface 2222 in the first direction is h. That is, the distance between the end of the first conical surface 2212 furthest from the first pressing surface 2211 and the first pressing surface 2211 is h, and the distance between the end of the second conical surface 2222 furthest from the second pressing surface 2221 and the second pressing surface 2221 is h. The height h can take values ​​such as 0.4mm, 0.5mm, 0.6mm, 0.7mm, and 0.8mm. By setting these values, [the desired effect can be achieved]. By creating a height difference between one end of the first conical surface 2212 and the first pressing surface 2211, a deformation space can be formed between the first conical surface 2212 and the first pressing surface 2211. Similarly, by creating a height difference between one end of the second conical surface 2222 and the second pressing surface 2221, a deformation space can be formed between the second conical surface 2222 and the second pressing surface 2221. In this way, under the action of the connecting member 21, the first conical surface 2212 and / or the second conical surface 2222 can deform to store elastic potential energy.

[0092] Furthermore, the height of the first conical surface 2212 and the second conical surface 2222 in the first direction cannot be set too small. If it is too small, it will reduce the deformation space of the first conical surface 2212 and / or the second conical surface 2222, thereby reducing the deformation capacity of the first conical surface 2212 and / or the second conical surface 2222. It also cannot be set too large. If it is too large, although it can achieve the deformation capacity, it will increase the structural size of the conical gasket 22, resulting in low material utilization and failing to meet cost control requirements.

[0093] In some embodiments, the width of the first pressing surface 2211 in the radial direction of the conical gasket 22 is L, and / or the width of the second pressing surface 2221 in the radial direction of the conical gasket 22 is L, and satisfies: 0.3mm≤L≤1mm.

[0094] In other words, the width of the first pressing surface 2211 and the second pressing surface 2221 in the radial direction of the conical gasket 22 can both be set to L, or one of the first pressing surface 2211 and the second pressing surface 2221 can be set to L in the radial direction of the conical gasket 22. There are various ways to set it, and it can be selected according to the actual situation.

[0095] Specifically, in this embodiment, the widths of the first pressing surface 2211 and the second pressing surface 2221 in the radial direction of the conical gasket 22 are set to be the same, that is, the radial widths of both are L, and L can be 0.3mm, 0.5mm, 0.8mm, 1.0mm, etc. By setting the above values, the widths of the first pressing surface 2211 and the second pressing surface 2221 in the radial direction of the conical gasket 22 can meet the design requirements, and can improve the pressing reliability between the first pressing surface 2211 and the connecting head 212, and can improve the pressing reliability between the second pressing surface 2221 and one of the high-pressure housing 11 and the low-pressure housing 13. The radial widths of the first pressing surface 2211 and the second pressing surface 2221 can also be set to other values, not limited to those listed above. Setting them within the above range makes the processing dimensions of the conical gasket 22 not fixed, improves the processing flexibility of the conical gasket 22, and results in a high product qualification rate.

[0096] Furthermore, the radial widths of the first pressing surface 2211 and the second pressing surface 2221 on the conical gasket 22 cannot be set too small. If they are too small, the contact area between the first pressing surface 2211 and the connecting head 212, and between the second pressing surface 2221 and the housing assembly 1, will be reduced, thereby decreasing the reliability of the pressing action between the conical gasket 22 and the connecting head 212 and the housing assembly 1. Conversely, the radial widths of the first pressing surface 2211 and the second pressing surface 2221 on the conical gasket 22 cannot be set too large. While a large width would increase the radial width of the first pressing surface 2211, the second pressing surface 2221 on the conical gasket 22, it is not advisable to set them too large. The contact area between the connecting head and the second pressing surface 2221 and the housing assembly 1 is increased, thereby increasing the pressing reliability between the conical gasket 22 and the connecting head 212 and the housing assembly 1. However, when the outer diameter of the conical gasket 22 is fixed, the size of the first conical surface 2212 and the second conical surface 2222 is reduced, thereby reducing the elastic potential energy reserve of the conical gasket 22. Furthermore, the installation position of the conical gasket 22 and the housing assembly 1 is matched to improve the efficiency and reliability of the assembly of the conical gasket 22, the connecting piece 21 and the housing assembly 1.

[0097] In some embodiments, the inner diameter of the second conical surface 2222 is D1, and satisfies: 8.2mm ≤ D1 ≤ 8.7mm. The inner diameter of the second conical surface 2222 is the minimum inner diameter at the clearance hole 223, and the clearance hole 223 formed by the second conical surface 2222 is used to avoid the rod portion 211 of the connector 21. The connector 21 can use an M8 bolt, meaning the inner diameter D1 of the second conical surface 2222 can be 8.2mm, 8.3mm, 8.4mm, 8.5mm, 8.6mm, 8.7mm, etc. By setting these values, the inner diameter D1 of the second conical surface 2222 can be larger than the outer diameter of the rod portion 211 of the connector 21, facilitating the smooth passage of the rod portion 211 through the clearance hole 223. Furthermore, by setting the value within the above range, the diameter of the clearance hole 223 of the conical gasket 22 is not fixed, improving the processing flexibility of the conical gasket 22.

[0098] Furthermore, the inner diameter of the second conical surface 2222 cannot be set too small. In this embodiment, the connector 21 uses an M8 bolt with a nominal diameter of 8mm. The inner diameter of the second conical surface 2222 cannot be less than 8mm, and the minimum value of the second conical surface 2222 is set to 8.2mm. This allows for a certain gap between the connector 21 and the second conical surface 2222, which facilitates the connector 21 passing through the second conical surface 2222. If the diameter is too small, it will be difficult for the rod portion 211 of the connector 21 to pass through, thereby reducing the installation efficiency of the housing assembly 1. In addition, the inner diameter of the second conical surface 2222 cannot be set too large. If it is too large, the gap between the rod portion 211 of the connector 21 and the clearance hole 223 will be larger. If the gap is too large, it will reduce the sealing performance between the connector 21 and the conical gasket 22, resulting in lower connection reliability.

[0099] In other embodiments, the outer diameter of the second conical surface 2222 is D2, and satisfies: 12mm≤D2≤15mm. The outer diameter of the second conical surface 2222 is the maximum inner diameter at the clearance hole 223. The clearance hole 223 formed by the second conical surface 2222 is used to avoid the rod body portion 211 of the connector 21. The outer diameter D2 of the second conical surface 2222 can be 12mm, 12.5mm, 13.0mm, 13.5mm, 14.0mm, 14.5mm, 15.0mm, etc. By setting the above values, the outer diameter D2 of the second conical surface 2222 can be greater than the outer diameter of the rod body portion 211 of the connector 21, and greater than the inner diameter D1 of the second conical surface 2222. This facilitates the smooth passage of the rod body portion 211 through the clearance hole 223 and improves the assembly efficiency of the connector 21.

[0100] Furthermore, the installation direction of the connector 21 is along the first direction and extends from the first conical surface 2212 to the second conical surface 2222, and from the inner diameter of the second conical surface 2222 to its outer diameter. This arrangement allows the second conical surface 2222 to tilt away from the first direction relative to the installation direction of the connector 21, effectively achieving deformation of the conical gasket 22 along the installation direction. Moreover, within the aforementioned range, the tilt angle of the second conical surface 2222 is not fixed, improving the processing flexibility of the conical gasket 22 and resulting in a high product qualification rate.

[0101] Furthermore, the outer diameter of the second conical surface 2222 cannot be set too small. If it is too small, it will reduce the distance between the outer diameter and the inner diameter of the second conical surface 2222, which increases the tilt angle of the second conical surface 2222 and the width of the second pressing surface 2221, which increases the pressing area between the second pressing surface 2221 and the housing assembly 1. It will also reduce the elastic deformation capacity at the second conical surface 2222, and its structure will be close to that of a general flat gasket. It cannot provide effective clamping force supplement after the clamping force of the housing assembly 1 has weakened. In addition, the outer diameter of the second conical surface 2222 cannot be set too large. If it is too large, it will increase the distance between the outer diameter and the inner diameter of the second conical surface 2222, which reduces the tilt angle of the second conical surface 2222. When the outer diameter of the conical gasket 22 is fixed, the size of the second pressing surface 2221 is reduced, thereby reducing the pressing reliability between the conical gasket 22 and the housing assembly 1.

[0102] It should be noted that one of the high-pressure housing 11 or the low-pressure housing 13 is provided with a connecting flange. The maximum outer diameter of the tapered gasket 22 is smaller than the outer diameter of the connecting flange, that is, the tapered gasket 22 does not protrude from the edge of the connecting flange, thereby improving the reliability of the connection.

[0103] It should be noted that the housing assembly 1 is primarily made of aluminum alloy, while the connecting bolts are made of steel. The two materials have significantly different coefficients of thermal expansion. The coefficient of thermal expansion for aluminum alloy is approximately 2.2e⁻⁵ / ℃, while that for steel is approximately 1.2e⁻⁵ / ℃. This leads to inconsistent thermal deformation of the housing assembly 1 and the connecting bolts during heating or cooling, causing fluctuations in the axial force of the connecting bolts and the clamping force of the housing. When the surface pressure on the connecting bolt head is high, it can also cause yielding deformation on the surface of the connecting bolt holes. Furthermore, when the housing assembly 1 is subjected to alternating temperature loads, the high temperature initially causes thermal expansion of both the housing assembly 1 and the connecting bolts, with aluminum alloy exhibiting greater thermal expansion than steel. This increases the surface pressure between the housing assembly 1 and the connecting bolts, potentially leading to yielding on the surface of the connecting bolt holes. Then, when the housing assembly 1 returns to normal or low temperature, the housing assembly 1 and the connecting bolts contract and deform. Again, the thermal contraction of aluminum alloy is greater than that of steel, reducing the surface pressure between the housing assembly 1 and the connecting bolts. If the surface of the housing assembly 1 has already yielded, its deformation is irreversible, further reducing the surface pressure.

[0104] Furthermore, the high-pressure housing 11 includes an exhaust pipe and an oil reservoir, resulting in significant temperature differences at different locations within the housing, as well as variations in the temperature of different connecting bolts on the housing assembly 1. This causes inconsistent thermal deformation of the housing assembly 1 and the connecting bolts, with some bolts exhibiting higher surface pressure than others. The reduction in bolt surface pressure manifests as a decrease in bolt torque and clamping force of the housing assembly 1. This significantly increases the risk of leakage in the housing assembly 1. Moreover, a substantial decrease in bolt torque or clamping force of the housing assembly 1 can also lead to refrigerant or oil leakage.

[0105] Furthermore, by using connector 21 and conical gasket 22 to fasten housing assembly 1, after undergoing temperature alternation and durability tests, the torque of connector 21 and the clamping force of housing assembly 1 do not decrease, and... Figure 8 and Figure 9 The two tables show a comparison of the torque decay of connector 21 after a temperature alternation test. Connector 21 without tapered gasket 22 generally experienced torque decay, with an average decrease of 2 Nm, while connector 21 with tapered gasket 22 did not experience torque decay and instead increased by an average of 2 Nm.

[0106] Furthermore, during the installation of connector 21, the conical gasket 22 is subjected to pressure, undergoing three stages: 1. Elastic stage; 2. Plastic stage; 3. Flattening stage. In the elastic stage, the stress on the conical gasket 22 is less than the yield strength of its material, and the deformation of the conical gasket 22 can recover. In the plastic stage, the edge of the conical gasket 22 yields first, reducing its stiffness; if unloaded at this point, residual deformation will occur. In the flattening stage, the contact area of ​​the conical gasket 22 increases, the lever arm shortens, and the stiffness increases sharply, approximating the compression of a flat gasket. The conical gasket 22 can be made of steel with high yield strength, such as 65Mn. The pressure deformation curve of the conical gasket 22 generally has two inflection points: the first inflection point is the boundary between the elastic and plastic stages, i.e., the yield load; the second inflection point is the boundary between the plastic and flattening stages, i.e., the flattening load. In this way, the conical gasket 22 can undergo elastic and plastic deformation, which can store the required elastic potential energy to effectively compensate for the loss of clamping force between the housing assembly 1 and the connector 21.

[0107] The greater the thickness of the conical gasket 22, the greater its yield load and flattening load. When the distance t between the first conical surface 2212 and the second conical surface 2222 takes values ​​of 2.0 mm, 2.2 mm, and 2.5 mm, and the height of the first conical surface 2212 and the second conical surface 2222 in the first direction is 0.5 mm, the pressure characteristics of the corresponding hammer-shaped gasket 22 are different, such as... Figure 7The figure shows the pressure characteristic curve at a t of 2.2 mm. The curve has two inflection points: the yield load of 20 kN and the flattening load of 26 kN. Figure 10 The figure shows the pressure characteristic curve with a t of 2.0 mm. The curve has two inflection points: one at the yield load of 14 kN and the other at the flattening load of 19.5 kN. Figure 11 The figure shows the pressure characteristic curve with a t of 2.5 mm. The curve has two inflection points: a yield load of 25.5 kN and a flattening load greater than 30 kN, which exceeds the experimental upper limit. This means that the distance t between the first conical surface 2212 and the second conical surface 2222 does not need to be greater than 2.5 mm. Furthermore, by testing the pressure characteristics of different conical gaskets, the corresponding yield load and flattening load can be obtained. The comparison results of the three specifications of conical gaskets 22 are shown below. Figure 12 As shown in the table, the pressure characteristics are more suitable when the distance t between the first conical surface 2212 and the second conical surface 2222 is 2.2mm. This can effectively realize the deformation capacity and store the required elastic potential energy. In addition, the yield load of the conical gasket 22 is also related to the yield stress of the material. Figure 7 , Figure 10 and Figure 11 The material of the conical gasket 22 is 65Mn.

[0108] Furthermore, the initial torque of each M8 connecting bolt is 35Nm to 45Nm, and the initial torque can be set to 40Nm. The preload is approximately 26kN, and the preload of the M8 should be less than its guaranteed load. For example, for a 12.9 grade M8 screw, the guaranteed load is 35.5kN, in order to ensure the reliability of the M8 and improve the connection reliability of the connecting assembly 2 to the housing assembly 1.

[0109] In some embodiments, there are multiple connecting components 2, which are circumferentially spaced apart from the housing component 1. The multiple connecting components 2 are evenly spaced apart, and correspondingly, multiple connecting holes are provided on the high-pressure housing 11, connecting bracket 12, and low-pressure housing 13 of the housing component 1. These connecting holes are distributed one-to-one with the multiple connecting components 2. During installation, the tapered gaskets 22 of the multiple connecting components 2 are fitted one-to-one with the multiple connecting holes, and the connecting pieces 21 of the multiple connecting components 2 are inserted one-to-one into the multiple connecting holes along the first direction, thereby achieving the connection and fixation of the housing component 1. The number of connecting components 2 can be eight, nine, ten, etc. Figure 4 As shown, there are ten connecting components 2, and the number of connecting components 2 is not limited to the setting method in this embodiment. It can be selected and set according to the actual size and design needs of the shell component 1.

[0110] Therefore, by using multiple connecting components 2, the housing assembly 1 can have multiple connection positions around its circumference, which improves the connection strength of the housing assembly 1 and makes the connection points of the housing assembly 1 evenly distributed in the circumference, thus improving the sealing performance of the housing assembly 1 in the circumference. When the clamping force of the housing assembly 1 or the connecting member 21 decreases, multiple conical gaskets 22 release elastic potential energy. By applying an elastic force in the same direction as the clamping force to the housing assembly 1 or the connecting member 21 to compensate for the loss of clamping force, the risk of leakage between the housing assemblies 1 can be reduced, thereby improving the reliability of the compressor 100.

[0111] In some embodiments, a first sealing element 3 is provided between the high-pressure housing 11 and the connecting bracket 12. The first sealing element 3 can be annular and distributed circumferentially around the high-pressure housing 11. Thus, after the connecting member 21 locks the high-pressure housing 11, the connecting bracket 12, and the low-pressure housing 13 together, the first sealing element 3 presses against the high-pressure housing 11 and the connecting bracket 12 respectively, achieving a sealed connection between the high-pressure housing 11 and the connecting bracket 12. The first sealing element 3 can be made of materials such as rubber to improve its sealing performance, and it can be configured as a sealing gasket.

[0112] Therefore, the first sealing element 3 can prevent gaps between the high-pressure housing 11 and the connecting bracket 12, thereby improving the connection reliability between the high-pressure housing 11 and the connecting bracket 12.

[0113] In other embodiments, a second sealing element 4 is provided between the low-pressure housing 13 and the connecting bracket 12. The second sealing element 4 can be annular and distributed circumferentially around the low-pressure housing 13. Thus, after the connecting member 21 locks the high-pressure housing 11, the connecting bracket 12, and the low-pressure housing 13 together, the second sealing element 4 presses against both the low-pressure housing 13 and the connecting bracket 12, achieving a sealed connection between them. The second sealing element 4 can be made of materials such as rubber to improve its sealing performance, and it can be configured as a sealing gasket.

[0114] Therefore, by utilizing the elasticity of the first seal 3 and the second seal 4 through the above-mentioned arrangement, the connection between the connecting bracket 12 and the high-pressure housing 11 and the low-pressure housing 13 can be made more reliable, and the sealing between the three is better. This can effectively reduce the risk of leakage at the connection between the high-pressure housing 11, the connecting bracket 12 and the low-pressure housing 13, thereby improving the working reliability of the compressor 100.

[0115] In some embodiments, the refrigerant used with compressor 100 includes carbon dioxide.

[0116] Refrigerant, also known as a cooling medium, circulates in a refrigeration system. It absorbs and releases heat through changes in its physical state (such as vaporization and liquefaction) to achieve a cooling effect. In this embodiment, carbon dioxide can be used as the refrigerant. Carbon dioxide is a natural refrigerant, designated R744. It is a naturally occurring gas that does not pollute the environment, is environmentally friendly, and is non-toxic, non-irritating, and harmless to humans. Furthermore, it is non-flammable and non-explosive, offering high safety.

[0117] Specifically, during the operation of compressor 100, carbon dioxide enters the low-pressure chamber 131 and flows to the high-pressure chamber 111 after compression, resulting in high-temperature and high-pressure carbon dioxide to achieve the compression characteristics of compressor 100. In the refrigeration system, carbon dioxide circulates in compressor 100, absorbing and releasing heat through its vaporization and liquefaction processes. In the evaporator, carbon dioxide vaporizes and absorbs heat, thereby reducing the temperature of the object being cooled. In the condenser, carbon dioxide liquefies and releases heat, transferring the absorbed heat to the ambient medium. Thus, by changing the physical state of the refrigerant, the functions of cooling and heating are achieved.

[0118] Therefore, for the carbon dioxide compressor 100, the internal pressure of its housing assembly 1 is relatively high, typically reaching over 10 MPa, and can reach up to 12.5 MPa. In contrast, the high pressure (discharge pressure) of other refrigerants (such as R134a) is about 1.5-3.0 MPa, and the low pressure (intake pressure) is about 0.15-0.35 MPa. The internal pressure of the carbon dioxide compressor 100 is 5-10 times that of other refrigerants. During the gas compression process, the housing assembly 1 will heat up or cool down, causing internal deformation. By setting the connection 21 and the conical gasket 22, the clamping force of the connection 21 or the housing assembly 1 will decrease due to different thermal deformations. The conical gasket 22 can promptly use its elastic potential energy to supplement the clamping force, thereby improving the connection strength and sealing of the housing assembly 1 and improving the working stability of the carbon dioxide compressor 100. Furthermore, the connection method of the housing assembly 1 in this embodiment can also be applied to compressors using other refrigerants, thus ensuring the working reliability of different types of compressors 100.

[0119] In some embodiments, the compressor 100 is suitable for vehicles. Utilizing the compressor 100's ability to compress refrigerant or air, it can supply gas to other structures inside the vehicle, such as cylinders. The compressor 100 can also be connected to the vehicle's thermal management system, that is, connected to other heat exchangers (such as condensers and evaporators) inside the vehicle, enabling heat exchange between different structures and thus achieving different functions such as cooling, heating, and dehumidification to meet different user needs.

[0120] This utility model also proposes a vehicle.

[0121] According to the vehicle of the present invention, a compressor 100 of any of the above embodiments is provided. The compressor 100 includes a housing assembly 1 and a connecting assembly 2. The housing assembly 1 includes a high-pressure housing 11, a connecting bracket 12 and a low-pressure housing 13, and the connecting assembly 2 includes a connector 21 and a conical gasket 22. By using the connector 21 and the conical gasket 22 in cooperation, the high-pressure housing 11, the connecting bracket 12 and the low-pressure housing 13 are reliably connected. The conical gasket 22 has a deformable capability. The elastic potential energy generated by the deformation of the conical gasket 22 can be used to elastically pre-tighten the connector 21 and the housing assembly 1 in a first direction to compensate for the loss of clamping force of the housing assembly 1, thereby improving the reliability and stability of the connection of the housing assembly 1. It can avoid the leakage of gas and other media due to unreliable connection of the housing assembly 1 after the clamping force of the connector 21 or the housing assembly 1 weakens. This improves the working performance of the compressor 100, and the structure is simple, the cost is low and the effect is good.

[0122] 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.

[0123] 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 compressor characterized by, include: A housing assembly includes a low-pressure housing, a connecting bracket, and a high-pressure housing distributed along a first direction. The low-pressure housing and the connecting bracket define a low-pressure chamber. A drive unit is provided inside the low-pressure housing. The high-pressure housing and the connecting bracket define a high-pressure chamber. A pump body is provided inside the high-pressure chamber. The drive unit is poweredly connected to the pump body. Refrigerant entering the low-pressure chamber is adapted to pass through the connecting bracket into the high-pressure chamber, be compressed, and then discharged. A connecting assembly, comprising a connector and a tapered gasket, wherein the connector passes through the high-pressure housing, the connecting bracket, and the low-pressure housing along a first direction, and the tapered gasket is disposed between the connector and the high-pressure housing or between the connector and the low-pressure housing, wherein at least a portion of the tapered gasket is inclined relative to the first direction and elastically pre-tightens the connector and the housing assembly in the first direction.

2. The compressor of claim 1, wherein, The connector includes a rod body and a connecting head, the connecting head being connected to one end of the rod body, and the rod body passing through the high-pressure housing, the connecting bracket, and the low-pressure housing; The rod body is threadedly connected to one of the high-pressure housing and the low-pressure housing, and the conical gasket is elastically pressed against the other of the high-pressure housing and the low-pressure housing between the connecting head and the connecting head.

3. The compressor according to claim 2, characterized in that, The conical gasket has a first side and a second side that are opposite to each other along a first direction. The first side includes a first pressing surface and a first conical surface distributed radially along the conical gasket. The first pressing surface presses against the connecting head. The second side includes a second pressing surface and a second conical surface distributed radially along the conical gasket. The second pressing surface presses against the other of the high-pressure housing and the low-pressure housing. Both the first conical surface and the second conical surface are inclined relative to the first direction.

4. The compressor according to claim 3, characterized in that, The conical pad has a clearance hole, and the rod body portion passes through the clearance hole; Both the first pressing surface and the first conical surface are constructed as annular, with the first pressing surface surrounding the clearance hole and the first conical surface surrounding the first pressing surface. And / or, both the second pressing surface and the second conical surface are constructed as annular, with the second conical surface surrounding the clearance hole and the second pressing surface surrounding the first conical surface.

5. The compressor according to claim 4, characterized in that, The first pressing surface is constructed as a plane perpendicular to the first direction; And / or, the second pressing surface is constructed as a plane perpendicular to the first direction.

6. The compressor according to claim 4, characterized in that, The first conical surface is parallel to the second conical surface; And / or, the distance between the first conical surface and the second conical surface is t, and satisfies: 1.7mm≤t≤2.5mm.

7. The compressor according to claim 4, characterized in that, The radial direction of the conical gasket is perpendicular to the first direction; The first conical surface and the radial direction of the conical gasket are at an angle α, and / or the second conical surface and the radial direction of the conical gasket are at an angle α, satisfying: 10°≤a≤20°.

8. The compressor according to claim 4, characterized in that, The height of the first conical surface in the first direction is h, and / or the height of the second conical surface in the first direction is h, and satisfies: 0.4mm≤h≤0.8mm.

9. The compressor according to claim 4, characterized in that, The width of the first pressing surface in the radial direction of the conical gasket is L, and / or the width of the second pressing surface in the radial direction of the conical gasket is L, and satisfies: 0.3mm≤L≤1mm.

10. The compressor according to claim 4, characterized in that, The inner diameter of the second conical surface is D1, and satisfies: 8.2mm≤D1≤8.7mm; And / or, the outer diameter of the second conical surface is D2, and satisfies: 12mm≤D2≤15mm.

11. The compressor according to any one of claims 1-10, characterized in that, There are multiple connecting components, and the multiple connecting components are distributed circumferentially spaced apart in the housing component; And / or, a first seal is provided between the high-pressure housing and the connecting bracket; And / or, a second seal is provided between the low-pressure housing and the connecting bracket; And / or, the refrigerant applicable to the compressor includes carbon dioxide; And / or, the compressor is suitable for vehicles.

12. A vehicle, characterized in that, The compressor is provided as described in any one of claims 1-11.

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