Bearing seat, compressor and vehicle
By designing oil reservoirs and oil guide channels in the bearing housing, the problem of long lubricating oil delivery time to the bearing is solved, achieving rapid lubrication and lubricating oil storage, and reducing bearing wear.
Patent Information
- Application Number
- CN202520289333.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-21
AI Technical Summary
After the compressor has been shut down for a long time, the oil return channel between the oil reservoir and the bearing housing is relatively long, and it takes a long time for the lubricating oil to reach the bearing, resulting in severe bearing wear.
Design a bearing housing that includes an oil reservoir and an oil guide channel. The cross-sectional area of the oil reservoir is larger than that of the oil guide section. The lubricating oil in the oil reservoir quickly enters the bearing mounting cavity for lubrication under the action of pressure difference, and the volume of the oil guide channel is increased to store more lubricating oil.
When the compressor starts, the lubricating oil in the oil reservoir can enter the bearing mounting cavity more quickly, reducing wear, and more lubricating oil is retained after shutdown for the next start-up.
Smart Images
Figure CN223739641U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a compressor technical field, especially a bearing seat, a compressor and a vehicle. BACKGROUND
[0002] When the compressor is running, in order to reduce the wear of the related moving parts, the lubricating oil is introduced into the interior of the compressor, in addition, in order to prevent the lubricating oil from being discharged together with the gas to the outside, and also to ensure the purity and dryness of the gas discharged to the outside, the related gas-liquid separation parts are generally arranged in the rear shell of the compressor, and the separated lubricating oil can be temporarily stored in the oil storage cavity of the rear shell.
[0003] After the compressor is stopped for a long time, the lubricating oil in the oil storage cavity can flow to the bearing on the bearing seat along the oil return channel under the pressure difference in the compressor in the starting period of the compressor, but the oil return channel between the oil storage cavity and the bearing seat is long, and the lubricating oil needs a long time to reach the bearing on the bearing seat, and in this period of time, the bearing will be greatly worn because of no lubrication. SUMMARY
[0004] The utility model discloses at least one of the technical problems in the prior art is solved, and for this purpose, the utility model provides a bearing seat, which can improve the problem of bearing wear.
[0005] The utility model discloses still provide a kind of compressor and vehicle with above-mentioned bearing seat.
[0006] According to the bearing seat of the first aspect of the utility model embodiment, the bearing seat is provided with a mounting cavity for mounting the bearing, and an oil guide channel communicated with the mounting cavity, the oil guide channel is also used to communicate with the compression cavity of the scroll assembly of the compressor, and the oil guide channel includes an oil storage groove and an oil guide section communicated with the oil storage groove;Wherein, the maximum cross-sectional area of the oil storage groove is greater than the maximum cross-sectional area of the oil guide section.
[0007] According to the bearing seat of the utility model embodiment, at least has following beneficial effects:
[0008] In the bearing seat, the oil storage groove has the effect of storing oil, and after the compressor runs for a period of time and stops, the oil storage groove stores lubricating oil. It can be understood that, after the compressor is stopped for a long time, the lubricating oil in the oil storage groove can enter the mounting cavity along the oil guide section under the action of the pressure difference in the compressor (the air pressure in the compression cavity is higher than the air pressure in the mounting cavity) within a period of time after the compressor is started, thereby lubricating the bearings in the mounting cavity. Since the oil storage groove is arranged on the bearing seat, it is closer to the mounting cavity, and therefore the lubricating oil in the oil storage groove can enter the mounting cavity more quickly and lubricate the bearings. In this way, the problem of wear of the bearings during movement can be improved. In addition, the arrangement of the oil storage groove also plays a role in increasing the volume of the entire oil guide channel. It can be understood that, after the compressor runs for a period of time and stops, the air pressure in the compression cavity of the scroll assembly decreases, at which time the pressure difference between the inside of the compression cavity and the inside of the mounting cavity approaches, and the lubricating oil in the oil guide section stops flowing to the mounting cavity. By increasing the volume of the entire oil guide channel, more lubricating oil remains in the oil guide channel after the compressor runs for a period of time and stops, thereby facilitating the provision of more lubricating oil for the bearings quickly after the compressor is started.
[0009] According to some embodiments of the present application, the maximum depth of the oil storage groove is greater than the maximum depth of the oil guide section.
[0010] According to some embodiments of the present application, one end of the oil guide section communicates with the oil storage groove, and the other end of the oil guide section communicates with the mounting cavity.
[0011] According to some embodiments of the present application, the bearing seat has a first end face for being arranged close to the stationary scroll, and the oil guide channel is arranged on the first end face.
[0012] According to some embodiments of the present application, the oil guide section comprises a first oil guide section and a second oil guide section, the first oil guide section extends along the circumference of the mounting cavity, one end of the second oil guide section communicates with the first oil guide section, and the other end of the second oil guide section communicates with the mounting cavity.
[0013] According to some embodiments of the present application, one end of the first oil guide section communicates with the oil storage groove, one end of the second oil guide section communicates with the other end of the first oil guide section, and the second oil guide section extends from the other end of the first oil guide section towards the mounting cavity along the radial direction of the mounting cavity.
[0014] According to some embodiments of the present application, at least part of the oil guide section is a throttling structure.
[0015] The compressor according to the second aspect of the present application comprises the bearing seat according to the above embodiments, and a scroll assembly, wherein the scroll assembly forms a compression cavity, and the oil guide channel communicates with the compression cavity.
[0016] The compressor according to the embodiments of the present application has at least the following beneficial effects:
[0017] In the compressor according to the present application, the oil storage groove has the effect of storing oil, and after the compressor is operated for a period of time and then stopped, the oil storage groove stores lubricating oil. It can be understood that, after the compressor is stopped for a long time, the lubricating oil in the oil storage groove can enter the mounting cavity along the oil guiding section under the pressure difference in the compressor (the air pressure in the compression cavity is higher than that in the mounting cavity) within a period of time after the compressor is started, thereby lubricating the bearing in the mounting cavity. Since the oil storage groove is arranged on the bearing seat, it is closer to the mounting cavity, and therefore the lubricating oil in the oil storage groove can enter the mounting cavity more quickly and lubricate the bearing. In this way, the problem of wear of the bearing during movement can be improved. In addition, the arrangement of the oil storage groove also plays a role in increasing the volume of the entire oil guiding passage. It can be understood that, after the compressor is operated for a period of time and then stopped, the air pressure in the compression cavity of the scroll assembly decreases, at which time the pressure difference between the inside of the compression cavity and the inside of the mounting cavity approaches, and the lubricating oil in the oil guiding section stops flowing to the mounting cavity. By increasing the volume of the entire oil guiding passage, more lubricating oil remains in the oil guiding passage after the compressor is operated for a period of time and then stopped, thereby facilitating the provision of more lubricating oil for the bearing quickly after the compressor is started.
[0018] According to some embodiments of the present application, the compressor further comprises a scroll assembly, the scroll assembly is formed with a compression cavity, the compressor is provided with an oil return passage that communicates the compression cavity with the mounting cavity, and the oil guiding passage is a part of the oil return passage. At least part of the oil guiding section is a throttling structure, and the throttling structure is the part with the smallest hydraulic diameter in the oil guiding passage.
[0019] The vehicle according to the third aspect of the present application comprises the bearing seat according to the above embodiments or the compressor according to the above embodiments.
[0020] The vehicle according to the embodiments of the present application has at least the following beneficial effects:
[0021] The bearing seat or the compressor of the embodiment has the oil storage effect, and after the compressor runs for a period of time and stops, the oil storage groove stores lubricating oil.
[0022] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS
[0023] The present application will be further described below in conjunction with the drawings and embodiments, wherein:
[0024] Figure 1 A partial structure diagram of the compressor of an embodiment of the present application;
[0025] Figure 2 A Figure 1 An enlarged view of A in FIG.
[0026] Figure 3 An assembly structure diagram of the bearing seat and the bearing of an embodiment of the present application;
[0027] Figure 4 A Figure 3 An enlarged view of B in FIG.
[0028] BRIEF DESCRIPTION OF DRAWINGS
[0029] 100, bearing seat; 101, first end face; 110, oil guiding channel; 111, oil storage groove; 112, oil guiding section; 1121, throttling structure; 112a, first oil guiding section; 112b, second oil guiding section; 113, connecting wall; 120, mounting cavity; 121, oil inlet;
[0030] 200, bearing;
[0031] 300, scroll assembly; 301, compression chamber; 310, orbiting scroll; 320, fixed scroll; 321, fixed scroll flow passage; 330, filter;
[0032] 400, rear housing; 410, oil storage cavity;
[0033] 500, wear plate; 510, protrusion. DETAILED DESCRIPTION
[0034] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations 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 only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.
[0035] In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying 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. In addition, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified and limited, the term "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0036] In the description of the present application, it is to be understood that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0037] Figure 1The partial structure of the compressor of an embodiment of the utility model is shown, the compressor is scroll compressor, can be applied to air conditioning system of vehicle, wherein, the vehicle can be private car, for example, car, SUV, MPV or pick-up truck etc.;The vehicle can also be for operation car, for example, van, bus, small truck or large trailer etc., the vehicle can be oil car also can be new energy car, when the vehicle is new energy car, it can be hybrid car, also can be pure electric car. Of course, the compressor of the utility model can also be applied to domestic air conditioning system.
[0038] As Figure 1 shown, the compressor includes bearing seat 100, bearing 200, scroll assembly 300 and rear housing 400. When the compressor works, the mixture of lubricating oil and gas in the compression chamber 301 of the scroll assembly 300 will enter the inside of the rear housing 400 to realize gas-liquid separation, and the separated lubricating oil will flow to the oil storage cavity 410 of the rear housing 400;Wherein, when the compressor works, due to the relatively high pressure in the compression chamber 301, the lubricating oil in the oil storage cavity 410 will flow to the bearing seat 100 through the static scroll flow channel 321 on the scroll assembly 300, thereby lubricating the bearing 200 arranged in the bearing seat 100.
[0039] In combination Figure 1 , Figure 2 and Figure 3 , wherein the bearing seat 100 is provided with a mounting cavity 120 for mounting the bearing 200, and the bearing seat 100 is further provided with an oil guide channel 110, which communicates with the mounting cavity 120.
[0040] It can be understood that when the compressor works, the pressure of the compression chamber 301 of the scroll assembly 300 is relatively high, and the pressure of the mounting cavity 120 of the bearing seat 100 is relatively low, under the action of pressure difference, the lubricating oil in the oil storage cavity 410 of the rear housing 400 will flow to the oil guide channel 110 through the static scroll flow channel 321 on the scroll assembly 300, and then flow to the mounting cavity 120 of the bearing seat 100 through the oil guide channel 110, so as to lubricate the bearing 200 in the mounting cavity 120.
[0041] In combination Figure 3 and Figure 4 , the oil guide channel 110 includes an oil storage groove 111 and an oil guide section 112 communicating with the oil storage groove 111;Wherein, the maximum cross-sectional area of the oil storage groove 111 is greater than the maximum cross-sectional area of the oil guide section 112.
[0042] It should be noted that in some embodiments, the maximum depth of the oil storage groove 111 is greater than the maximum depth of the oil guide section 112, so that the maximum cross-sectional area of the oil storage groove 111 is greater than the maximum cross-sectional area of the oil guide section 112.
[0043] In some other embodiments, the maximum width of the oil storage groove 111 is greater than the maximum width of the oil guiding section 112, so that the maximum cross-sectional area of the oil storage groove 111 is greater than the maximum cross-sectional area of the oil guiding section 112.
[0044] In yet some other embodiments, the maximum width of the oil storage groove 111 is greater than the maximum width of the oil guiding section 112, and the maximum depth of the oil storage groove 111 is greater than the maximum depth of the oil guiding section 112, so that the maximum cross-sectional area of the oil storage groove 111 is greater than the maximum cross-sectional area of the oil guiding section 112.
[0045] In combination with Figure 1 With Figure 3 It should be noted that the oil storage groove 111 has the effect of storing oil, and after the compressor is operated for a period of time and then stopped, the oil storage groove 111 stores lubricating oil. It can be understood that, after the compressor is stopped for a long time, the lubricating oil in the oil storage groove 111 can enter the mounting cavity 120 along the oil guiding section 112 under the pressure difference in the compressor (the air pressure in the compression cavity 301 is higher than the air pressure in the mounting cavity 120) within a period of time when the compressor is started, thereby lubricating the bearing 200 in the mounting cavity 120. Since the oil storage groove 111 is arranged on the bearing seat 100, it is closer to the mounting cavity 120, and therefore, the lubricating oil in the oil storage groove 111 can enter the mounting cavity 120 more quickly and lubricate the bearing 200, so that the problem of the bearing 200 being worn during movement can be improved.
[0046] In addition, it should be noted that the arrangement of the oil storage groove 111 also plays a role in increasing the volume of the entire oil guiding passage 110. It can be understood that, after the compressor is operated for a period of time and then stopped, the air pressure in the compression cavity 301 of the scroll assembly 300 decreases, at which time the pressure difference between the inside of the compression cavity 301 and the inside of the mounting cavity 120 approaches, and the lubricating oil in the oil guiding section 112 stops flowing to the mounting cavity 120. By increasing the volume of the entire oil guiding passage 110, more lubricating oil remains in the oil guiding passage 110 after the compressor is operated for a period of time and then stopped, thereby facilitating the provision of more lubricating oil for the bearing 200 quickly after the compressor is started.
[0047] As Figures 1 to 3As shown, the oil storage groove 111 is in communication with the static vortex disc flow channel 321, one end of the oil guide section 112 is in communication with the oil storage groove 111, and the other end is in communication with the mounting cavity 120. When the compressor is running, the lubricating oil in the oil storage cavity 410 will flow to the oil storage groove 111 through the static vortex disc flow channel 321 on the vortex disc assembly 300, and then flow into the mounting cavity 120 through the oil guide section 112 to lubricate the bearing 200. In addition, the oil storage groove 111 is located at the end of the oil guide section 112 away from the mounting cavity 120, and is far away from the mounting cavity 120. When the compressor is not running (the bearing 200 does not need to be lubricated), the risk of lubricating oil loss caused by the oil in the oil storage groove 111 flowing into the mounting cavity 120 naturally under the condition of vibration or tilting of the compressor can be reduced.
[0048] Further, the vortex disc assembly 300 comprises a dynamic vortex disc 310 and a static vortex disc 320, and the static vortex disc flow channel 321 is formed on the static vortex disc 320. The bearing seat 100 has a first end face 101 arranged close to the static vortex disc 320, and a second end face arranged away from the first end face 101. One end of the mounting cavity 120 penetrates the first end face 101 to form an oil inlet 121, and the oil guide channel 110 is arranged on the first end face 101 and penetrates the side wall of the oil inlet 121.
[0049] It can be understood that the oil storage groove 111 of the oil guide channel 110 is arranged opposite to the end of the static vortex disc flow channel 321 away from the oil storage cavity 410. In this way, the lubricating oil of the static vortex disc flow channel 321 can first enter the oil storage groove 111, and then enter the mounting cavity 120 through the oil guide section 112, so as to lubricate the bearing 200 arranged in the mounting cavity 120.
[0050] In combination with Figure 1 With Figure 2 It should be noted that the static vortex disc 320 is close to the end of the bearing seat 100, and the wear-resistant sheet 500 is arranged between the end of the bearing seat 100 close to the static vortex disc 320 and the end of the static vortex disc 320 close to the bearing seat 100. The wear-resistant sheet 500 is used to shield the open part of the oil guide section 112 formed on the first end face 101, so as to reduce the risk of leakage of the lubricating oil in the oil guide section 112. Of course, the wear-resistant sheet 500 has a communication port between the static vortex disc flow channel 321 and the oil storage groove 111, and the communication port enables the static vortex disc flow channel 321 and the oil storage groove 111 to communicate with each other.
[0051] Further, the dynamic vortex disc 310 is also pressed on the side of the wear-resistant sheet 500 away from the bearing seat 100, so as to improve the reliability of the installation of the wear-resistant sheet 500.
[0052] Further, the wear-resistant sheet 500 is provided with a protruding part 510, and the protruding part 510 is pressed between the static vortex disc 320 and the bearing seat 100. This makes the wear-resistant sheet 500 receive greater force from the static vortex disc 320, so as to improve the reliability of the installation of the wear-resistant sheet 500.
[0053] As Figure 1 shown, the filter 330 is arranged in the static volute flow channel 321, and the filter 330 can filter the lubricating oil flowing from the oil storage cavity 410 of the rear housing 400 to the oil guide channel 110 of the bearing seat 100. It can be understood that the lubricating oil has high viscosity, and when the compressor is not running, that is, there is no pressure difference between the compression cavity 301 of the volute assembly 300 and the mounting cavity 120 of the bearing seat 100, the lubricating oil stored in the oil storage groove 111 is difficult to flow back to the oil storage cavity 410 through the filter 330, and therefore, the oil storage groove 111 can be stably stored in the oil storage groove 111.
[0054] Of course, in other embodiments, the oil storage groove 111 can also be arranged at a lower position, that is, the position of the oil storage groove 111 is lower than the position of the one end of the static volute flow channel 321 close to the oil storage groove 111, and the lubricating oil stored in the oil storage groove 111 will not flow back to the oil storage cavity 410.
[0055] In combination Figure 3 with Figure 4 In some embodiments, the depth of the oil storage groove 111 is greater than the depth of the oil guide section 112, and naturally, the bottom wall of the oil storage groove 111 is arranged in a stepped manner with the bottom wall of the oil guide section 112, and the bottom wall of the oil guide section 112 close to the one end of the oil storage groove 111 has a chamfer structure. Specifically, the bottom wall of the oil guide section 112 close to the one end of the oil storage groove 111 is connected with the bottom wall of the oil storage groove 111 close to the one end of the oil guide section 112 through a connecting wall 113, and a chamfer is formed between the connecting wall 113 and the bottom wall of the oil guide section 112. In this way, when the lubricating oil in the oil storage groove 111 is pressed into the oil guide section 112 under the action of the pressure difference, the lubricating oil is subjected to smaller resistance, so that more and faster lubricating oil in the oil storage groove 111 flows into the mounting cavity 120 through the oil guide section 112.
[0056] The chamfer between the connecting wall 113 and the bottom wall of the oil guide section 112 can be a rounded chamfer structure or a flat chamfer structure.
[0057] As Figure 3 shown, in some embodiments, the oil guide section 112 includes a first oil guide section 112a and a second oil guide section 112b, and the first oil guide section 112a extends along the circumference of the mounting cavity 120, and one end of the second oil guide section 112b communicates with the first oil guide section 112a, and the other end communicates with the mounting cavity 120.
[0058] It can be understood that the first oil guide section 112a extends along the circumference of the mounting cavity 120, so that the first oil guide section 112a can extend longer on the bearing seat 100 with limited space, so that the volume of the entire oil guide section 112 can be increased.
[0059] Further, one end of the first oil guiding section 112a is in communication with the oil storage groove 111, one end of the second oil guiding section 112b is in communication with the other end of the first oil guiding section 112a, and the second oil guiding section 112b extends from the other end of the first oil guiding section 112a towards the mounting cavity 120 along the radial direction of the mounting cavity 120. In this way, the second oil guiding section 112b can guide the lubricating oil in the second oil guiding section 112b into the mounting cavity 120 in a shorter path.
[0060] Specifically, the oil guiding passage 110 is arranged on the first end face 101 of the bearing seat 100, one end of the first oil guiding section 112a is in communication with the oil storage groove 111, the first oil guiding section 112a extends along the circumferential direction of the oil inlet 121 of the mounting cavity 120, and the second oil guiding section 112b extends from the other end of the first oil guiding section 112a towards the oil inlet 121 along the radial direction of the mounting cavity 120.
[0061] As shown in Figure 3 It should be noted that at least part of the oil guiding section 112 is a throttling structure 1121, and the throttling structure 1121 has a throttling effect.
[0062] It can be understood that one part of the oil guiding section 112 is a throttling structure 1121, and the other part is a non-throttling structure, the hydraulic diameter of the throttling structure 1121 is smaller than that of the non-throttling structure, the throttling structure 1121 has a throttling effect, and the flow rate of the entire oil guiding section 112 is determined by the throttling structure 1121.
[0063] In combination with Figure 1 and Figure 3 Specifically, the compressor has an oil return passage, one end of the oil return passage is in communication with the compression cavity 301 formed by the scroll assembly 300, and the other end is in communication with the mounting cavity 120, wherein the oil return passage at least includes the oil storage cavity 410 of the rear housing 400, the static scroll flow passage 321 of the static scroll 320, and the oil guiding passage 110 on the bearing seat 100, and the throttling structure 1121 of the oil guiding section 112 is the part with the smallest hydraulic diameter among the oil guiding passage 110.
[0064] It should be noted that according to the required flow rate, and according to the small hole throttling formula, the length and hydraulic diameter (depth and width parameters of the throttling structure 1121) of the throttling structure 1121 can be calculated. The hydraulic diameter (Hydraulic Diameter) refers to a characteristic length used to describe the flow characteristics of non-circular pipes in fluid mechanics, which is defined as the ratio of four times the flow cross-sectional area to the wetted perimeter, i.e. 4A / P, where A is the flow passage cross-sectional area, and P is the wetted perimeter on the cross section. For circular flow passages, the hydraulic diameter is equal to the inner diameter of the pipe; for non-circular flow passages, the hydraulic diameter provides an equivalent diameter for calculating the Reynolds number and judging the flow state.
[0065] It can be understood that, by setting the throttling structure 1121 on the bearing seat 100, the additional throttling pipe for controlling the flow of the oil return channel in the compressor can be omitted, and the number of parts used can be reduced.
[0066] In some embodiments, the width of the throttling structure 1121 is greater than the width of the non-throttling structure, and the depth of the throttling structure 1121 is less than the depth of the non-throttling structure. In this way, the throttling structure 1121 is set as a wide and shallow structure, facilitating machining with a tool.
[0067] The utility model also provides a vehicle, including the bearing seat 100 of above-mentioned embodiment or the compressor of above-mentioned embodiment. Among them, the vehicle can be private car, for example, sedan, SUV, MPV or pick-up truck etc.;The vehicle can also be operation car, for example, van, bus, small truck or large trailer truck etc., the vehicle can be oil car also can be new energy car, when the vehicle is new energy car, it can be hybrid car, also can be pure electric car. Of course, the compressor of the utility model can also be applied to household air conditioning system.
[0068] The vehicle of the utility model has the bearing seat 100 of above-mentioned embodiment or the compressor of above-mentioned embodiment. In the bearing seat 100 or compressor, the oil storage groove 111 has the effect of storing oil, and after the compressor runs for a period of time and stops, the oil storage groove 111 will store lubricating oil. It can be understood that, after the compressor is stopped for a long time, the lubricating oil in the oil storage groove 111 can enter the mounting cavity 120 along the oil guide section 112 under the pressure difference in the compressor (the air pressure in the compression cavity 301 is higher than the air pressure in the mounting cavity 120) within a period of time after starting the compressor, thereby lubricating the bearing 200 in the mounting cavity 120. Since the oil storage groove 111 is arranged on the bearing seat 100, it is closer to the mounting cavity 120, therefore, the lubricating oil in the oil storage groove 111 can enter the mounting cavity 120 faster and lubricate the bearing 200. In this way, the problem of wear of the bearing 200 during movement can be improved. In addition, the arrangement of the oil storage groove 111 also plays a role in increasing the volume of the entire oil guide channel 110. It can be understood that, after the compressor runs for a period of time and stops, the air pressure in the compression cavity 301 of the scroll assembly 300 decreases, at this time, the pressure difference between the inside of the compression cavity 301 and the inside of the mounting cavity 120 approaches, and the lubricating oil in the oil guide section 112 stops flowing to the mounting cavity 120. By increasing the volume of the entire oil guide channel 110, more lubricating oil will remain in the oil guide channel 110 after the compressor runs for a period of time and stops, thereby facilitating the provision of more lubricating oil for the bearing 200 after the compressor starts.
[0069] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0070] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.
Claims
1. A bearing seat, characterized in that, The bearing housing is provided with a mounting cavity for mounting a bearing, and an oil guiding channel in communication with the mounting cavity, the oil guiding channel comprising an oil storage groove and an oil guiding section in communication with the oil storage groove. The maximum cross-sectional area of the oil storage groove is greater than the maximum cross-sectional area of the oil guiding section.
2. The bearing seat of claim 1, wherein The maximum depth of the oil storage groove is greater than the maximum depth of the oil guiding section.
3. The bearing seat of claim 1, wherein One end of the oil guiding section is in communication with the oil storage groove, and the other end of the oil guiding section is in communication with the mounting cavity.
4. The bearing seat of claim 1, wherein The bearing housing has a first end face for being disposed close to a static scroll, and the oil guiding channel is disposed on the first end face.
5. The bearing seat of claim 1, wherein The oil guiding section comprises a first oil guiding section and a second oil guiding section, the first oil guiding section extending along the circumference of the mounting cavity, one end of the second oil guiding section being in communication with the first oil guiding section, and the other end of the second oil guiding section being in communication with the mounting cavity.
6. The bearing seat of claim 5, wherein, One end of the first oil guiding section is in communication with the oil storage groove, one end of the second oil guiding section is in communication with the other end of the first oil guiding section, and the second oil guiding section extends from the other end of the first oil guiding section towards the mounting cavity along the radial direction of the mounting cavity.
7. The bearing seat of claim 1, wherein At least part of the oil guiding section is a throttling structure.
8. A compressor characterized by, The compressor comprises: The bearing housing of any one of claims 1 to 7; The scroll assembly is formed with a compression cavity, and the oil guiding channel is in communication with the compression cavity.
9. The compressor of claim 8, wherein, The compressor is provided with an oil return channel in communication with the compression cavity and the mounting cavity, and the oil guiding channel is part of the oil return channel. At least part of the oil guiding section is a throttling structure, and the throttling structure is the part with the smallest hydraulic diameter among all parts of the oil guiding channel.
10. A vehicle characterized by comprising: The compressor of any one of claims 8 to 9.