Compressor, air conditioning system and vehicle

Abstract

The utility model discloses a compressor, air-conditioning system and vehicle relates to compressor technical field, wherein compressor includes casing and decompression valve, casing has high pressure chamber, casing outer wall is equipped with mounting hole, decompression valve is installed in the mounting hole, decompression valve includes decompression valve casing and is used for opening and closing decompression channel's sealing piece. According to the utility model, the convex rib is arranged on the end wall of one end, which is arranged in the mounting hole, of the pressure release valve shell, the convex rib and the pressure release valve shell are an integrated structural member, and the pressure release valve shell is propped against the bottom wall of the mounting hole in a sealing manner through the convex rib, so that the sealing end surface between the pressure release valve and the mounting hole can realize better sealing performance; refrigerants in the high-pressure cavity are effectively prevented from leaking from the sealing end face; compared with the prior art that a sealing gasket is adopted to achieve sealing of the sealing end face, hard sealing is adopted, the temperature resistance is higher, and the sealing performance and reliability of the sealing end face under the high working pressure of the compressor are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a compressor technical field, especially a kind of compressor, air conditioning system and vehicle. BACKGROUND

[0002] The compressor in the related art will be usually installed pressure relief valve, thereby avoiding the shell burst failure caused by the excessive pressure in the shell of compressor. After the traditional pressure relief valve is installed to the mounting hole of shell, the front end of pressure relief valve is provided with sealing gasket and mounting hole to realize sealing, since sealing gasket is vulnerable to yield air leakage under cold and hot impact, thus causing the failure of compressor. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in prior art. For this purpose, the utility model provides a kind of compressor, can improve the sealing of sealing end surface between the end of pressure relief valve and shell, improve the reliability of compressor under high working pressure.

[0004] The utility model further provides an air conditioning system and vehicle with the above-mentioned compressor.

[0005] According to the compressor of the first aspect of the utility model embodiment, the compressor comprises: a shell having a high-pressure cavity and a low-pressure cavity, the shell is provided with an exhaust hole communicating with the high-pressure cavity and an air inlet hole communicating with the low-pressure cavity, a motor is arranged in the low-pressure cavity, a compression mechanism is arranged in the shell, and the compression mechanism is configured to suck and compress refrigerant in the low-pressure cavity and then discharge the high-pressure cavity;The outer wall of the shell is provided with a mounting hole, and the mounting hole and the high-pressure cavity are connected by a communication channel;A pressure relief valve is installed in the mounting hole, the pressure relief valve comprises a pressure relief valve shell and a sealing element, a pressure relief channel is formed in the pressure relief valve shell, a sealing surface is formed in the pressure relief channel, the sealing element is installed in the pressure relief valve shell, and the sealing element is configured to move towards the communication channel and abut against the sealing surface;The end wall of the pressure relief valve shell towards the communication channel is provided with a protruding rib, the protruding rib and the pressure relief valve shell are an integral structure, and the pressure relief valve shell abuts against the bottom wall of the mounting hole through the protruding rib.

[0006] According to the compressor of the utility model embodiment, at least the following beneficial effects are achieved:

[0007] By mounting the pressure relief valve to the mounting hole of the shell, the end wall of the pressure relief valve shell mounted into the mounting hole is provided with a protruding rib, the protruding rib and the pressure relief valve shell are an integral structure, the pressure relief valve shell is sealed and abuts to the bottom wall of the mounting hole through the protruding rib, therefore, the sealing end surface between the pressure relief valve and the mounting hole can realize better sealing performance, and leakage of the refrigerant in the high-pressure cavity from the sealing end surface is effectively inhibited; compared with the prior art that uses a sealing gasket to realize sealing of the sealing end surface, the present embodiment uses hard sealing, has higher temperature resistance, improves the sealing performance and reliability of the sealing end surface under high working pressure of the compressor, and the cancellation of the sealing gasket is beneficial to reducing the production cost of the compressor.

[0008] According to some embodiments of the present application, the hardness of the protruding rib is greater than the hardness of the shell.

[0009] According to some embodiments of the present application, the protruding rib is annular and arranged around the circumference of the pressure relief passage.

[0010] According to some embodiments of the present application, a plurality of protruding ribs are arranged along the radial direction of the pressure relief passage.

[0011] According to some embodiments of the present application, the sealing member includes a tapered portion, the sealing surface is an annular tapered surface, and the tapered portion can be sealed and abutted to at least part of the sealing surface.

[0012] According to some embodiments of the present application, the sealing member further includes a guide portion, a guide surface is further formed in the pressure relief passage, and the guide portion can be slidably connected to the guide surface.

[0013] According to some embodiments of the present application, the pressure relief valve further includes an elastic element and an adjusting member, the adjusting member is located at one end of the sealing member away from the communication passage and is arranged in spaced relation with the sealing member, the elastic element is mounted between the sealing member and the adjusting member, and the adjusting member is used to adjust the pressure applied by the sealing member to the sealing surface.

[0014] According to some embodiments of the present application, the elastic element is a spring, and the two ends of the spring are respectively abutted to the sealing member and the adjusting member.

[0015] According to some embodiments of the present application, one end of the sealing member towards the adjusting member has a first protruding column, and the spring is sleeved outside the first protruding column; and / or, one end of the adjusting member towards the sealing member has a second protruding column, and the spring is sleeved outside the second protruding column.

[0016] According to some embodiments of the present application, the pressure relief valve further includes a dustproof paper, and the dustproof paper is attached to the end wall of the end of the pressure relief valve shell away from the communication passage.

[0017] According to some embodiments of the present application, the compressor adopts carbon dioxide refrigerant.

[0018] According to the air conditioning system of the second aspect of the present application, the compressor is as described in the above embodiments.

[0019] According to the air conditioning system of the present application, at least the following beneficial effects are achieved:

[0020] According to the compressor of the first aspect of the present application, the pressure relief valve is installed in the mounting hole of the shell, the end wall of the pressure relief valve shell installed in the mounting hole is provided with a protruding rib, the protruding rib and the pressure relief valve shell are an integral structure, and the pressure relief valve shell is sealed and abuts against the bottom wall of the mounting hole through the protruding rib. Therefore, the sealing end surface between the pressure relief valve and the mounting hole can achieve better sealing performance, effectively inhibiting the leakage of the refrigerant in the high-pressure cavity from the sealing end surface. Compared with the prior art which uses a sealing gasket to achieve the sealing of the sealing end surface, the present embodiment uses a hard seal, has higher temperature resistance, improves the sealing performance and reliability of the sealing end surface under high working pressure of the compressor, and the cancellation of the sealing gasket is conducive to reducing the production cost of the compressor.

[0021] According to the vehicle of the third aspect of the present application, the air conditioning system is as described in the above embodiments.

[0022] According to the vehicle of the present application, at least the following beneficial effects are achieved:

[0023] According to the air conditioning system of the second aspect of the present application, the compressor is installed in the mounting hole of the shell, the end wall of the pressure relief valve shell installed in the mounting hole is provided with a protruding rib, the protruding rib and the pressure relief valve shell are an integral structure, and the pressure relief valve shell is sealed and abuts against the bottom wall of the mounting hole through the protruding rib. Therefore, the sealing end surface between the pressure relief valve and the mounting hole can achieve better sealing performance, effectively inhibiting the leakage of the refrigerant in the high-pressure cavity from the sealing end surface. Compared with the prior art which uses a sealing gasket to achieve the sealing of the sealing end surface, the present embodiment uses a hard seal, has higher temperature resistance, improves the sealing performance and reliability of the sealing end surface under high working pressure of the compressor, and the cancellation of the sealing gasket is conducive to reducing the production cost of the compressor.

[0024] Additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0025] The present application will be further described below in combination with the drawings and embodiments, wherein:

[0026] Figure 1 It is a partial structure schematic view of the compressor of an embodiment of the present application;

[0027] Figure 2 An enlarged schematic view of the pressure relief valve of an embodiment of the present application is shown in the figure.

[0028] Figure 3 An enlarged schematic view of the pressure relief valve of an embodiment of the present application is shown in the figure. Figure 2

[0029] Figure 4 An enlarged schematic view of the pressure relief valve of an embodiment of the present application is shown in the figure. Figure 2

[0030] Figure 5 An enlarged schematic view of the pressure relief valve of an embodiment of the present application is shown in the figure. Figure 2

[0031] Figure 6 An enlarged schematic view of the pressure relief valve of an embodiment of the present application is shown in the figure.

[0032] Reference Signs List:

[0033] Compressor 1000;

[0034] Housing 100; High-pressure cavity 110; Mounting hole 120; Communication passage 130; Compression mechanism 140; Low-pressure cavity 150;

[0035] Pressure relief valve 200; Pressure relief valve housing 210; Pressure relief passage 211; Sealing surface 212; Convex rib 213; Guide surface 214; Sealing element 220; Conical portion 221; Guide portion 222; First convex column 223; Elastic element 230; Adjusting element 240; Second convex column 241; Through hole 242; Dustproof paper 250. DETAILED DESCRIPTION

[0036] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as a limitation of the present application.

[0037] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0038] ​​​In the description of the utility model, more refers to two or more. If there is a description of first, second, it is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0039] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be understood in a broad sense, and the skilled person in the art can determine the specific meaning of the above words in the utility model in combination with the specific content of the technical scheme.

[0040] In the related art, the compressor with high working pressure generally needs to be installed with a pressure relief valve, so as to avoid the shell burst failure caused by the excessive pressure in the compressor shell. Especially for the high working pressure single-stage or double-stage compressor with carbon dioxide as the refrigerant, the exhaust pressure of this type of compressor is high, and the exhaust temperature is also high. The traditional pressure relief valve is installed in the shell, and the sealing between the pressure relief valve and the shell needs to be ensured.

[0041] The sealing mode of the pressure relief valve mainly includes rubber, high molecular material, metal surface plating material, etc. The rubber material is generally applied to the use environment with the temperature below ℃ in the compressor shell; and the high molecular material, such as PI (polyimide), PEEK (polyether ether ketone) and metal surface plating (such as copper plating tin), is generally used in the use environment with the temperature higher than ℃. The hardness of this type of material is higher than that of rubber, so a higher sealing surface pressure is needed to realize the sealing. However, due to the excessively high sealing surface pressure, the material is prone to yield, especially under high temperature conditions, the material yield will cause the sealing surface pressure to drop, resulting in the leakage and failure of the sealing end face.

[0042] After the pressure relief valve works in the use environment with the temperature higher than ℃, the tightening torque of the pressure relief valve generally decreases. It is found through investigation that the sealing end face of the pressure relief valve in contact with the shell yields and deforms, causing the torque of the pressure relief valve to decrease, and the sealing end face to leak. The main reason for the decline of the sealing performance of the pressure relief valve is that the working pressure of the compressor is high, and the requirement for the sealing surface pressure is also high. The higher sealing surface pressure exceeds the yield strength of the sealing material. Especially under high temperature environment, the yield strength of the sealing material decreases obviously. The contact surface pressure is further improved due to the thermal expansion under high temperature, and the sealing material is prone to yield and deform. After the yield and deformation of the sealing material, the compressor stops or the environmental temperature decreases, the sealing material shrinks, the contact surface pressure of the sealing end face sharply decreases, and the refrigerant in the compressor shell leaks from the sealing end face.

[0043] In order to solve the above technical problems, the utility model embodiment provides a kind of compressor, and the one end of the installation hole of compressor shell is provided with convex rib, and convex rib is abutted to the bottom wall of installation hole to improve the sealing effect of the sealing end face of pressure relief valve shell and compressor shell. The compressor of the utility model embodiment will be introduced below in conjunction with the drawings.

[0044] Referring to Figure 1 and Figure 2 As shown in the figures, the housing 100 has a high-pressure cavity 110 and a low-pressure cavity 150 separated by a partition inside the housing 100, the housing 100 is provided with an exhaust hole at the outer wall of the high-pressure cavity 110, the exhaust hole communicates with the high-pressure cavity 110; the housing 100 is provided with an air inlet hole at the outer wall of the low-pressure cavity 150, the air inlet hole communicates with the low-pressure cavity 150. A motor is arranged in the low-pressure cavity 150, and a compression mechanism 140 is arranged in the high-pressure cavity 110. The refrigerant of the refrigeration system enters the low-pressure cavity 150 and is sucked into the compression mechanism 140 under the action of the pressure difference, the refrigerant is compressed into a high-temperature and high-pressure gas by the compression mechanism 140, and is discharged into the high-pressure cavity 110, the inside of the high-pressure cavity 110 is filled with high-temperature and high-pressure refrigerant. As an alternative, the compression mechanism 140 can also be located at the connection between the low-pressure cavity 150 and the high-pressure cavity 110, i.e. formed as part of the housing 100, at this time the two sides of the compression mechanism 140 are the low-pressure cavity 150 and the high-pressure cavity 110 respectively.

[0045] The outer wall of the housing 100 is provided with a mounting hole 120, the mounting hole 120 and the high-pressure cavity 110 are connected through a communication channel 130. The pressure relief valve 200 is mounted in the mounting hole 120, at least part of the structure of the pressure relief valve 200 is inserted into the mounting hole 120. The pressure relief valve 200 includes a pressure relief valve housing 210 and a sealing member 220, the pressure relief valve housing 210 is formed as the main structure of the pressure relief valve 200, the pressure relief valve housing 210 is inserted into the mounting hole 120, a pressure relief channel 211 is formed in the pressure relief valve housing 210, the pressure relief channel 211 penetrates through both ends of the pressure relief valve housing 210.

[0046] The communication channel 130 and the pressure relief channel 211 are coaxially arranged, so as to shorten the length of the communication channel 130 and improve the structural strength of the communication channel 130, so that the compressor 1000 is more compact in arrangement, which is beneficial to the compact design of the compressor 1000. The coaxial arrangement of the communication channel 130 and the pressure relief channel 211 can ensure the structural strength of the sealing surface 212, which is beneficial to the sealing of the sealing member 220 against the sealing surface 212. As an alternative, the communication channel 130 can also be inclined relative to the pressure relief channel 211, or the axis of the communication channel 130 and the axis of the pressure relief channel 211 are staggered.

[0047] Referring to Figure 2 , Figure 4 and Figure 5As shown, the sealing surface 212 is formed in the pressure relief channel 211 and located at the end of the pressure relief channel 211 close to the communication channel 130. The sealing member 220 is installed in the pressure relief valve housing 210 and configured to move towards the communication channel 130 and seal against the sealing surface 212. When the compressor 1000 is in normal operation, the sealing member 220 keeps sealing against the sealing surface 212, and the pressure relief channel 211 is closed. When the internal pressure of the high-pressure cavity 110 is too high, the sealing member 220 moves away from the sealing surface 212 under the action of the pressure, and the pressure relief channel 211 is opened to discharge part of the refrigerant, thereby reducing the pressure in the high-pressure cavity 110 and avoiding damage to the cylinder, piston, valve and other components of the compressor 1000 due to bearing of excessive pressure, ensuring the safe operation of the compressor 1000 and improving the service life of the compressor 1000.

[0048] With reference to Figure 2 And Figure 3 As shown, the compressor 1000 of the embodiment of the utility model is provided with the convex rib 213 at the end wall of the pressure relief valve housing 210 towards the end of the communication channel 130, and the convex rib 213 and the pressure relief valve housing 210 are an integral structure. It can be understood that the convex rib 213 and the pressure relief valve housing 210 are integrally formed or manufactured into an integral structure by bonding, riveting and the like, which is not limited here.

[0049] The pressure relief valve housing 210 is sealed against the bottom wall of the mounting hole 120 through the convex rib 213, and the refrigerant in the high-pressure cavity 110 is blocked by the sealing end face when entering the mounting hole 120 through the communication channel 130, so that the refrigerant can only be discharged from the pressure relief channel 211 and cannot leak to the outside of the compressor 1000 through the mounting hole 120. Since the convex rib 213 abuts against the bottom wall of the mounting hole 120, the sealing end face between the pressure relief valve 200 and the mounting hole 120 can achieve better sealing performance under the action of the convex rib 213, effectively preventing the refrigerant in the high-pressure cavity 110 from leaking from the sealing end face. Moreover, the sealing member 220 and the sealing surface 212 of the pressure relief channel 211 cooperatively control the opening or closing of the pressure relief channel 211, improving the sealing performance and reliability of the compressor 1000.

[0050] Compared with the sealing end face sealing realized by the sealing gasket in the prior art, the hard sealing is adopted in the embodiment, which has higher temperature resistance, improves the sealing performance and reliability of the sealing end face under the high working pressure of the compressor 1000, and the cancellation of the sealing gasket is conducive to reducing the production cost of the compressor 1000.

[0051] With reference to Figure 2As shown, in the embodiment, the hardness of the protruding ribs 213 is greater than the hardness of the shell 100. Common hardness testing methods include Brinell hardness, Rockwell hardness, Vickers hardness, Shore hardness, etc. Considering that the hardness values of different materials may differ under different testing methods, the appropriate testing environment and testing method should be selected according to the actual application conditions of the embodiment, which is not specifically limited here. When the pressure relief valve 200 is installed into the mounting hole 120, the protruding ribs 213 will be embedded into the bottom wall of the mounting hole 120 due to the hardness of the protruding ribs 213 being greater than the hardness of the shell 100. It can be understood that the material of the protruding ribs 213 and the pressure relief valve shell 210 can be the same material, and the protruding ribs 213 and the pressure relief valve shell 210 are processed by integral casting or the like. The material of the shell 100 of the compressor 1000 is generally aluminum or aluminum alloy. The material of the protruding ribs 213 can be a metal material with a hardness greater than aluminum, such as steel or stainless steel.

[0052] When the hardness of the protruding ribs 213 is greater than the hardness of the shell 100, the protruding ribs 213 can be embedded into the bottom wall of the mounting hole 120, further improving the sealing performance of the sealing end surface between the pressure relief valve 200 and the mounting hole 120, so that the refrigerant leaked into the mounting hole 120 from the communication passage 130 is blocked by the sealing end surface, and the refrigerant leakage can be more effectively inhibited.

[0053] Referring to Figure 2 and Figure 3 As shown, the protruding ribs 213 are annular and arranged around the circumference of the pressure relief passage 211. The protruding ribs 213 are clamped between the end surface of the pressure relief valve shell 210 and the bottom wall of the mounting hole 120. Since the protruding ribs 213 are continuous annular and surround the outside of the outlet of the communication passage 130, the protruding ribs 213 can effectively block the refrigerant from spreading around the sealing end surface through the sealing end surface, improving the sealing effect of the sealing end surface.

[0054] Referring to Figure 3 As shown, the protruding ribs 213 are arranged in multiple, and the multiple protruding ribs 213 are arranged radially along the pressure relief passage 211, and the multiple protruding ribs 213 are annular and arranged in a nested manner. The multiple protruding ribs 213 are clamped between the end surface of the pressure relief valve shell 210 and the bottom wall of the mounting hole 120, and the multiple protruding ribs 213 surround the outside of the outlet of the communication passage 130. The multiple protruding ribs 213 respectively form multiple structures for blocking the refrigerant from spreading around the sealing end surface through the sealing end surface, further improving the sealing effect of the sealing end surface.

[0055] Referring to Figure 5As shown, the sealing member 220 comprises a tapered portion 221 located at the head of the sealing member 220, i.e. the side of the sealing member 220 facing the communication passage 130, which is an outer tapered (conical or pyramidal) or outer truncated tapered (truncated conical or truncated pyramidal) structure with a large upper part and a small lower part. The sealing surface 212 is a ring-shaped tapered surface, which is an inner tapered hole (conical hole or pyramidal hole) or an inner truncated tapered hole (truncated conical hole or truncated pyramidal hole) with a large upper part and a small lower part. When the tapered portion 221 and the sealing surface 212 are in sealing abutment, they can be partially abutted or fully abutted, which is not specifically limited herein. The tapered portion 221 and the sealing surface 212 of the present embodiment cooperate to achieve better sealing performance and reduce leakage when the pressure relief passage 211 is closed. It can be understood that the inner wall of the pressure relief passage 211 is generally made of the same material as the shell 100, such as aluminum, aluminum alloy, etc.; and the tapered portion 221 can be made of a soft material such as rubber, in which case the tapered portion 221 is elastically sealed to achieve sealing abutment with the sealing surface 212. As an alternative, the tapered portion 221 can also be made of a metal material such as steel or aluminum, in which case the tapered portion 221 is hard sealed to achieve sealing abutment with the sealing surface 212.

[0056] In another embodiment of the present application, the sealing member 220 comprises a sealing ball and a piston, the piston is installed in the pressure relief passage 211, the piston has an inner cavity accommodating the sealing ball, and the piston abuts against the sealing ball and blocks part of the inner wall of the sealing surface 212, thereby closing the pressure relief passage 211.

[0057] Referring to Figure 5 As shown, the sealing member 220 further comprises a guide portion 222, and the pressure relief passage 211 further forms a guide surface 214, the guide portion 222 and the guide surface 214 are adapted to each other, and the guide portion 222 is slidably connected to the guide surface 214, thereby guiding the sealing member 220 to stably slide along the axial direction of the pressure relief passage 211, improving the stability during the opening and closing process of the pressure relief passage 211. When the pressure in the high-pressure chamber 110 is too high and the pressure relief passage 211 needs to be opened, the sealing member 220 can smoothly move upward and open the pressure relief passage 211; when the pressure in the high-pressure chamber 110 returns to normal and the pressure relief passage 211 needs to be closed, the sealing member 220 can quickly return downward and close the pressure relief passage 211.

[0058] Referring to Figure 2 and Figure 5As shown, the pressure relief valve 200 further comprises an elastic element 230 and an adjusting member 240, and the sealing member 220, the elastic element 230 and the adjusting member 240 are sequentially arranged in the pressure relief valve housing 210. The sealing member 220, the elastic element 230 and the adjusting member 240 are collectively used for controlling the opening or closing of the pressure relief passage 211. The adjusting member 240 is located at one end of the sealing member 220 away from the communication passage 130, and the adjusting member 240 is arranged in a spaced manner with the sealing member 220. The elastic element 230 is arranged between the sealing member 220 and the adjusting member 240, and the elastic element 230 is configured to be capable of exerting an elastic force on the sealing member 220 towards the communication passage 130, and the sealing member 220 is abutted to the sealing surface 212 by the elastic force of the elastic element 230, so as to realize the sealing of the sealing surface 212 by the sealing member 220. The adjusting member 240 is used for adjusting the pressure of the sealing member 220 applied to the sealing surface 212, that is, adjusting the size of the elastic force of the elastic element 230 applied to the sealing member 220. The size of the elastic force of the elastic element 230 determines the pressure relief pressure of the compressor 1000, and the compression amount of the elastic element 230 is controlled, so as to control the pressure relief threshold of the compressor 1000.

[0059] Referring to Figure 5 As shown, the elastic element 230 of the utility model embodiment is a spring, the lower end of the spring is abutted to the sealing member 220, the upper end of the spring is abututted to the adjusting member 240, and the spring exerts an elastic force on the sealing member 220 to close the pressure relief passage 211. The adjusting member 240 can be a nut or the like, which can adjust the position relative to the sealing member 220 along the axial direction of the pressure relief passage 211, so as to adjust the compression amount of the spring, and further adjust the pressure relief pressure of the compressor 1000. The spring has simple structure and high stability, and is convenient to cooperate with the adjusting member 240 to adjust the pressure relief pressure.

[0060] Referring to Figure 5 As shown, in order to improve the stability of spring installation, the one end of the sealing member 220 towards the adjusting member 240 has a first convex column 223, and the spring is sleeved outside the first convex column 223; the one end of the adjusting member 240 towards the sealing member 220 has a second convex column 241, and the spring is sleeved outside the second convex column 241. The first convex column 223 and the second convex column 241 limit the two ends of the spring respectively, which can effectively prevent the spring from being twisted and deflected. As an alternative, the compressor 1000 of the embodiment can also be provided with only the first convex column 223 or only the second convex column 241, and the specific scheme of limiting the spring can be selected according to the actual product.

[0061] Referring to Figure 2 And Figure 5 As shown, the adjusting member 240 of the utility model embodiment is configured to be capable of adjusting the relative position along the axial direction of the pressure relief passage 211, that is, the adjusting member 240 can be adjusted along the axial direction of the pressure relief passage 211 to adjust the compression amount of the spring, and further adjust the pressure relief pressure of the compressor 1000. Figure 2The adjustment position of the up-down direction is adjusted, so that the compression amount of the elastic element 230 is adjusted, and then the acting force of the sealing element 220 acting on the sealing surface 212 is adjusted, so that the adjustment operation of the relief pressure of the compressor 1000 is more convenient.

[0062] Referring to Figure 4 and Figure 5 As shown in the figure, the outer peripheral wall of the adjusting element 240 has an external thread, and the inner peripheral wall of the relief passage 211 has an internal thread matched with the external thread, the position adjustment of the adjusting element 240 relative to the relief passage 211 is realized through the cooperation of the external thread and the internal thread, which is convenient for manufacturing and operation.

[0063] In order to make the relief passage 211 and the external space of the compressor 1000 communicate, the outer peripheral wall of the adjusting element 240 and the inner peripheral wall of the relief passage 211 have a through hole 242, the through hole 242 is used to communicate the two ends of the adjusting element 240 along the axial direction, so as to ensure the smoothness of the relief passage 211 during relief. It can be understood that the through hole 242 can be arranged on the outer peripheral wall of the adjusting element 240, or the through hole 242 can be arranged on the inner peripheral wall of the relief passage 211, or the through hole 242 can be arranged on the outer peripheral wall of the adjusting element 240 and the inner peripheral wall of the relief passage 211.

[0064] Referring to Figure 2 As shown in the figure, the relief valve 200 further comprises a dustproof paper 250 attached to the end wall of the relief valve housing 210 away from the communication passage 130. The dustproof paper 250 can effectively prevent particles such as dust and powder from entering the relief passage 211 of the relief valve 200, and avoid damaging the opening and closing performance of the sealing element 220.

[0065] Referring to Figure 1 As shown in the figure, the compressor 1000 of the utility model adopts carbon dioxide refrigerant. The molecular weight of carbon dioxide is small, and the refrigeration capacity is large. The unit refrigeration capacity at 0℃ is 5 to 8 times higher than that of traditional refrigerant, and the unit volume refrigeration capacity is larger. The viscosity of carbon dioxide is small, and the flow resistance is small, and the heat transfer performance is better. Carbon dioxide does not corrode common materials of refrigeration system, and the lubrication condition is easy to meet, and also can improve the sealing performance of the open type compressor 1000, and reduce the leakage. Carbon dioxide has wide sources and low price, which can greatly reduce the refrigerant replacement cost.

[0066] Because carbon dioxide refrigerant is used, the working pressure is higher, and the requirement for the relief valve 200 is also higher, therefore, the compressor 1000 of the utility model realizes the sealing of the sealing end face through the relief valve housing 210 provided with the rib 213 and the hard sealing with the bottom wall of the mounting hole 120, improves the sealing performance and connection reliability between the relief valve 200 and the shell 100, and reduces the sealing failure.

[0067] The air conditioning system of one embodiment of the utility model, including the compressor 1000 of above embodiment. The air conditioning system also includes condenser, evaporator and throttling device, the refrigerant cycle of air conditioning system is: the compressor 1000 discharges high temperature and high pressure refrigerant, the high temperature and high pressure refrigerant is heat dissipated through condenser, then forms low temperature and low pressure refrigerant through throttling device, the low temperature and low pressure refrigerant is heat absorbed through evaporator, then reenters the compressor 1000 and is compressed. When the air conditioning system needs to refrigerate, the indoor side is configured as evaporator, and the airflow driven by the fan flows through the evaporator, to realize blowing cold wind. When the air conditioning system needs to heat, the indoor side is configured as condenser, and the airflow driven by the fan flows through the condenser, to realize blowing hot wind.

[0068] The air conditioning system of one embodiment of the utility model, including the compressor 1000 of above embodiment. The air conditioning system also includes condenser, evaporator and throttling device, the refrigerant cycle of air conditioning system is: the compressor 1000 discharges high temperature and high pressure refrigerant, the high temperature and high pressure refrigerant is heat dissipated through condenser, then forms low temperature and low pressure refrigerant through throttling device, the low temperature and low pressure refrigerant is heat absorbed through evaporator, then reenters the compressor 1000 and is compressed. When the air conditioning system needs to refrigerate, the indoor side is configured as evaporator, and the airflow driven by the fan flows through the evaporator, to realize blowing cold wind. When the air conditioning system needs to heat, the indoor side is configured as condenser, and the airflow driven by the fan flows through the condenser, to realize blowing hot wind.

[0069] The air conditioning system of one embodiment of the utility model, including the compressor 1000 of above embodiment. The air conditioning system also includes condenser, evaporator and throttling device, the refrigerant cycle of air conditioning system is: the compressor 1000 discharges high temperature and high pressure refrigerant, the high temperature and high pressure refrigerant is heat dissipated through condenser, then forms low temperature and low pressure refrigerant through throttling device, the low temperature and low pressure refrigerant is heat absorbed through evaporator, then reenters the compressor 1000 and is compressed. When the air conditioning system needs to refrigerate, the indoor side is configured as evaporator, and the airflow driven by the fan flows through the evaporator, to realize blowing cold wind. When the air conditioning system needs to heat, the indoor side is configured as condenser, and the airflow driven by the fan flows through the condenser, to realize blowing hot wind.

[0070] Refer to Figure 6 The air conditioning system of one embodiment of the utility model, including the compressor 1000 of above embodiment. The air conditioning system also includes condenser, evaporator and throttling device, the refrigerant cycle of air conditioning system is: the compressor 1000 discharges high temperature and high pressure refrigerant, the high temperature and high pressure refrigerant is heat dissipated through condenser, then forms low temperature and low pressure refrigerant through throttling device, the low temperature and low pressure refrigerant is heat absorbed through evaporator, then reenters the compressor 1000 and is compressed. When the air conditioning system needs to refrigerate, the indoor side is configured as evaporator, and the airflow driven by the fan flows through the evaporator, to realize blowing cold wind. When the air conditioning system needs to heat, the indoor side is configured as condenser, and the airflow driven by the fan flows through the condenser, to realize blowing hot wind.

[0071] The air conditioning system of the vehicle of the embodiment of the utility model adopts the compressor 1000 of the above-mentioned embodiment, the pressure relief valve 200 is installed in the mounting hole 120 of the shell 100, the one end wall of the pressure relief valve shell 210 installed in the mounting hole 120 is provided with the convex rib 213, the convex rib 213 and the pressure relief valve shell 210 are integral structural members, the pressure relief valve shell 210 is sealed and abuts to the bottom wall of the mounting hole 120 through the convex rib 213, therefore the sealing end surface between the pressure relief valve 200 and the mounting hole 120 can realize better sealing performance, effectively inhibits the refrigerant in the high-pressure cavity 110 from leaking from the sealing end surface, compared with the prior art that adopts the sealing gasket to realize the sealing of the sealing end surface, the embodiment adopts the hard sealing, the temperature resistance is higher, the sealing performance and the reliability of the sealing end surface under the high working pressure of the compressor 1000 are improved, and moreover canceling the sealing gasket is favorable for reducing the production cost of the compressor 1000.

[0072] The vehicle of the embodiment of the utility model adopts all the technical solutions of the air conditioning system of the above-mentioned embodiment, therefore at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiment, which will not be repeated here.

[0073] The above-mentioned embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, within the knowledge range of the ordinary skill in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. A compressor, characterized in that, include: The housing has a high-pressure chamber and a low-pressure chamber. The housing is provided with an exhaust port communicating with the high-pressure chamber and an air inlet communicating with the low-pressure chamber. A motor is provided in the low-pressure chamber. A compression mechanism is provided in the housing. The compression mechanism is configured to draw in refrigerant from the low-pressure chamber, compress it, and then discharge it from the high-pressure chamber. The outer wall of the housing is provided with a mounting hole, and the mounting hole and the high-pressure chamber are connected by a communication channel. A pressure relief valve is installed in the mounting hole. The pressure relief valve includes a pressure relief valve housing and a seal. A pressure relief channel is formed inside the pressure relief valve housing. A sealing surface is formed inside the pressure relief channel. The seal is installed inside the pressure relief valve housing and is configured to move toward the communication channel and seal against the sealing surface. The pressure relief valve housing has a raised rib on the end wall facing the communication channel. The raised rib and the pressure relief valve housing are an integral structural component. The pressure relief valve housing is sealed against the bottom wall of the mounting hole through the raised rib.

2. The compressor according to claim 1, characterized in that: The hardness of the rib is greater than the hardness of the shell.

3. The compressor according to claim 1 or 2, characterized in that: The ribs are arranged in a ring around the pressure relief channel.

4. The compressor according to claim 1 or 2, characterized in that: The ribs are provided in multiple portions, and the multiple ribs are arranged at radial intervals along the pressure relief channel.

5. The compressor according to claim 1, characterized in that: The seal includes a tapered portion, and the sealing surface is an annular tapered surface, wherein the tapered portion is capable of sealing at least a portion of the sealing surface.

6. The compressor according to claim 5, characterized in that: The seal also includes a guide portion, and a guide surface is formed within the pressure relief channel. The guide portion is slidably connected to the guide surface.

7. The compressor according to claim 1, characterized in that: The pressure relief valve further includes an elastic element and an adjusting element. The adjusting element is located at the end of the seal that is away from the communication channel and is spaced apart from the seal. The elastic element is installed between the seal and the adjusting element. The adjusting element is used to adjust the pressure applied by the seal to the sealing surface.

8. The compressor according to claim 7, characterized in that: The elastic element is a spring, and the two ends of the spring abut against the sealing element and the adjusting element, respectively.

9. The compressor according to claim 8, characterized in that: The sealing element has a first protrusion at one end facing the adjusting element, and the spring is sleeved on the outside of the first protrusion; and / or, The adjusting member has a second protrusion at one end facing the sealing member, and the spring is sleeved on the second protrusion.

10. The compressor according to claim 1, characterized in that: The pressure relief valve also includes a dustproof paper, which is attached to the end wall of the pressure relief valve housing opposite to the communication channel.

11. The compressor according to claim 1, characterized in that: The compressor uses carbon dioxide as a refrigerant.

12. An air conditioning system, characterized in that: Includes the compressor as described in any one of claims 1 to 11.

13. A vehicle, characterized in that: Includes the air conditioning system as described in claim 12.

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