Compressor and refrigeration equipment
By setting an oil cap in the compressor to separate the high-pressure zone and the low-pressure zone, the problem of lower bearings bearing motion impact is solved, and the energy efficiency of the compressor is improved.
Patent Information
- Application Number
- CN202421222306.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-05-30
AI Technical Summary
In the compressor, the lower bearing needs to bear the motion impact of the cylinder, resulting in a decrease in airtightness between it and the housing, causing leakage from the high-pressure part to the low-pressure part, and reducing the energy efficiency of the compressor.
By setting an oil cover in the housing of the compressor, the housing is divided into a high-pressure zone and a low-pressure zone, instead of the distinction of the lower bearing, the possibility of lower airtightness between the high-pressure zone and the low-pressure zone is reduced.
The airtightness between the high-pressure zone and the low-pressure zone is improved, the probability of the high-pressure refrigerant and the low-pressure refrigerant being directly mixed in the compressor is reduced, and the energy efficiency of the compressor is ensured.
Smart Images
Figure CN222797704U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of compressors, in particular to a compressor and a refrigeration device. Background Art
[0002] With the improvement of compressor integration and the overall trend of miniaturization of compressors, compressors with liquid reservoirs integrated into the compressor body have become available. In integrated vertical compressors, the high-pressure area and the low-pressure area in the compressor are generally separated by the lower bearing of the cylinder and the oil cover arranged on the lower bearing to receive the return lubricating oil. However, the lower bearing also needs to bear the movement impact of the compressor cylinder. In the long run, the air tightness between the lower bearing and the casing may be reduced, causing leakage from the high-pressure part to the low-pressure part, thereby reducing the energy efficiency of the compressor. Utility Model Content
[0003] The main purpose of the utility model is to provide a compressor, which aims to separate a high-pressure area and a low-pressure area in a shell to ensure the energy efficiency of the compressor.
[0004] To achieve the above-mentioned purpose, the compressor proposed by the utility model comprises
[0005] A housing, wherein the housing is integrally provided;
[0006] A liquid storage chamber, the liquid storage chamber is used to store low-pressure refrigerant, and the liquid storage chamber is formed at the bottom of the shell;
[0007] A cylinder, the cylinder being disposed in the shell and used for pressurizing the low-pressure refrigerant;
[0008] An oil cover is arranged on the lower end surface of the lower bearing, the oil cover is welded to the housing, and the oil cover divides the interior of the housing into a high-pressure area and a low-pressure area, wherein the low-pressure area includes the liquid storage chamber.
[0009] Optionally / in one embodiment, the oil cover has a first flange, and the first flange is welded to the shell.
[0010] Optionally / in one embodiment, a lower bearing is disposed in the shell, an air return pipe is installed on the lower bearing, and a pipe hole for the air return pipe to pass through is opened on the first flange.
[0011] Optionally / in one embodiment, a recess is formed on the outer peripheral wall of the oil cover, and the recess is used to make way for the air return hole.
[0012] Optionally / in one embodiment, the oil cover is fixedly connected to the lower bearing.
[0013] Optionally / in one embodiment, a first fixing hole is formed on the first flange, a fixing piece is disposed in the first fixing hole, and an end of the fixing piece passes through the first fixing hole and is connected to the lower bearing.
[0014] Optionally / in one embodiment, the height of the first flange is not less than 3 mm.
[0015] Optionally / in one embodiment, the heat insulation cover has a second flange, and a second fixing hole for the fixing member to pass through is formed on the second flange.
[0016] Optionally / in one embodiment, the outer periphery of the second flange is bent downward to provide a connecting ring, and the connecting ring is fixedly connected to the shell.
[0017] Alternatively / in one embodiment, or
[0018] The heat insulation cover is embedded in the oil cover.
[0019] Optionally / in one embodiment, the outer circumference of the first flange is bent upward to form a fixing ring, and the fixing ring is fixedly connected to the shell.
[0020] Optionally / in one embodiment, the outer periphery of the first flange is bent downward to form a fixing ring, and the fixing ring is fixedly connected to the shell.
[0021] The utility model also provides a compressor, comprising the above compressor.
[0022] The technical solution of the utility model adopts an oil cover to distinguish between the high-pressure area and the low-pressure area in the shell, thereby reducing the possibility of reduced internal air tightness due to the operation of the compressor, further improving the air tightness between the high-pressure area and the low-pressure area, and reducing the probability of direct mixing of high-pressure refrigerant and low-pressure refrigerant in the compressor, thereby ensuring the energy efficiency of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0024] Figure 1 It is a schematic diagram of the cross-sectional structure of the compressor of the utility model;
[0025] Figure 2 This is a schematic diagram of the cross-sectional structure of the compressor of the utility model after adding a heat insulation cover;
[0026] Figure 3 It is a schematic diagram of the cross-sectional structure of the lower bearing and the oil cover of the utility model;
[0027] Figure 4 It is a cross-sectional structural schematic diagram of another embodiment of the lower bearing and the oil cover of the utility model;
[0028] Figure 5 This is a schematic diagram of the structure of the oil cap of the utility model;
[0029] Figure 6 This is a structural schematic diagram of an embodiment of the thermal insulation gasket of the utility model;
[0030] Figure 7 This is a structural schematic diagram of another embodiment of the thermal insulation gasket of the utility model;
[0031] Figure 8 This is a structural schematic diagram of another embodiment of the thermal insulation gasket of the utility model;
[0032] Fig. 9 A cross-sectional schematic diagram of the lower bearing and oil cover of the utility model after adding a heat shield;
[0033] Fig.10 A cross-sectional schematic diagram of another embodiment of the utility model after adding a heat shield to the lower bearing and the oil cover;
[0034] Fig.11 The cross-sectional schematic diagram of another embodiment of the utility model after adding a heat shield to the lower bearing and the oil cover.
[0035] Description of Figure Numbers:
[0036] Label name Label name 1 case 35 Tube hole 11 Liquid storage chamber 4 Heat shield 12 Suction pipe 41 Second Flanging 13 cylinder 411 Second fixing hole 2 Lower bearing 42 Thermal insulation gasket 21 Air return pipe 421 perforation 3 Oil cap 422 Insulation tank 31 First Flanging 43 Nozzle 32 First fixing hole 44 Give way to the sunken 33 Fixings 45 Combination Department 34 Fixed ring 46 Connection ring
[0037] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0039] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0041] The compressor is an important component of equipment such as air conditioners and refrigerators. It is used to pressurize the refrigerant in the refrigeration pipeline to facilitate the heat dissipation of the refrigerant. Specifically, the low-pressure refrigerant passing through the evaporator will enter the compressor, which will pressurize the refrigerant to form high-pressure refrigerant. The high-pressure refrigerant then enters the condenser to dissipate heat, thus completing the heat exchange.
[0042] At present, the compressor generally includes a main body and a liquid reservoir, and the liquid reservoir is generally arranged on the side of the main body or at the bottom of the main body. The liquid reservoir will store the low-pressure refrigerant from the evaporator. The liquid reservoir will be provided with an air intake pipe 12 connected to the main body, and the low-pressure refrigerant enters the main body through the air intake pipe 12, and then the compression mechanism in the main body will pressurize the low-pressure refrigerant, so that the low-pressure refrigerant is converted into a high-pressure refrigerant and enters the condenser. Accordingly, whether the liquid reservoir is fixed on the side or the bottom of the main body, the liquid reservoir needs to use two sets of shells separately from the main body to ensure that the cooling oil and the refrigerant in the main body will not be excessively mixed, thereby ensuring the normal operation of the mechanical structure in the main body and the normal operation of the refrigeration pipeline.
[0043] The main body includes a shell 1 and a compression mechanism, and the compression mechanism includes a cylinder 13 and a lower bearing 2. The cylinder 13 and the lower bearing 2 are both installed in the shell 1. The cylinder 13 is used to compress the refrigerant, and the lower bearing 2 provides support and fixation for the cylinder 13 to ensure the normal operation of the cylinder 13 in the main body. With the development of miniaturization of household appliances, the size of the compressor is gradually getting smaller. In order to further reduce the size of the compressor, the reservoir and the main body can be designed to share a shell 1, but the structure such as the lower bearing 2 needs to be improved accordingly, and the cooling oil and the refrigerant need to be separated inside the shell 1.
[0044] In a vertical compressor, after the compressor and the liquid storage tank are integrated, the low-temperature and low-pressure refrigerant will flow back to the bottom of the compressor, and then be compressed by the cylinder 13 to form a high-temperature and high-pressure refrigerant and enter the top of the compressor, and an oil cover 3 will be provided on the lower end surface of the lower bearing 2 in the compressor to receive the lubricating oil returned from the cylinder 13; therefore, in fact, the lower bearing 2 in the compressor will jointly distinguish the high-temperature and high-pressure zone (or high-pressure zone, high-temperature zone) and the low-temperature and low-pressure zone (or low-pressure zone, low-temperature zone) of the compressor, wherein the low-temperature and low-pressure zone is the liquid storage part of the compressor; however, the defect existing in the above structure is that the lower bearing 2 also needs to bear the movement impact of the compressor cylinder 13, and the air tightness between the lower bearing 2 and the shell 1 may be reduced in the long run, thereby reducing the energy efficiency of the compressor.
[0045] Reference Figures 1 to 3 In order to solve the above problems, the utility model proposes a compressor; in the utility model, the compressor includes a shell 1, a cylinder 13 and a lower bearing 2, and the cylinder 13 and the lower bearing 2 are both installed in the shell 1; a pipeline for cooling oil and refrigerant to enter is provided on the lower bearing 2; the compressor in the utility model also includes an oil cover 3, which is arranged on the end surface of the lower bearing 2, so that an oil storage cavity is formed between the oil cover 3 and the lower bearing 2; the outer surface of the oil cover 3 cooperates with the shell 1 to form a liquid storage cavity 11, and the liquid storage cavity 11 is used to store low-temperature and low-pressure refrigerant, thereby completing the isolation of the cooling oil and the refrigerant; the shell 1 is also provided with an air intake pipe 12, and the air intake pipe 12 is fixed to the shell 1 On the outer surface, the intake pipe 12 is used to introduce low-pressure refrigerant into the liquid storage chamber 11, and one end of the intake pipe 12 extends into the liquid storage chamber 11; in the utility model, the shape of the oil cover 3 matches the shape of the interior of the shell 1, that is, the oil cover 3 is welded to the inner wall of the shell 1, so that the oil cover 3 can distinguish between the high-pressure area and the low-pressure area in the shell 1, and the liquid storage chamber is located in the low-pressure area; therefore, in addition to being able to receive the cooling oil refluxed by the compression mechanism, the setting of the oil cover 3 can also distinguish between the high-pressure area and the low-pressure area in the shell 1, so as to replace the distinguishing function of the lower bearing 2, thereby reducing the possibility of the high-pressure area and the low-pressure area being connected due to the movement of the compressor cylinder 13, thereby ensuring the energy efficiency of the compressor.
[0046] Specifically, the cylinder 13 and its surrounding parts can be collectively referred to as a compression mechanism. The oil storage chamber will store the cooling oil refluxed from the compression mechanism, and the compressor will be provided with an oiling mechanism for pumping the cooling oil in the oil storage chamber to various mechanical parts. The compression mechanism and the oiling mechanism are both arranged above the oil cover 3. The lower bearing 2 will provide support for the cylinder 3, and the outer circumference of the lower bearing 2 is also welded to the housing 1. In order to prevent the heat of the cooling oil refluxed in the oil cover 3 from being transferred to the liquid storage chamber 11 through the oil cover 3, the compressor proposed by the utility model also includes a heat insulation cover 4, which is arranged below the oil cover 3 and covers the oil cover 3, and a heat insulation gap is arranged between the heat insulation cover 4 and the oil cover 3, that is, the heat insulation cover 4 is used to generate a heat insulation gap between the liquid storage chamber 11 and the outer surface of the oil cover 3, so that the liquid storage chamber 11 does not directly contact the outer surface of the oil cover 3, thereby blocking the heat transfer of the cooling oil.
[0047] Reference Figure 3 , Figure 4 In the present invention, it is considered that the oil cap 3 needs to separate the refrigerant and the cooling oil, that is, the oil cap 3 needs to maintain the integrity of its structure while providing storage space for the cooling oil to ensure that the oil cap 3 is not easily deformed. Therefore, the oil cap 3 needs to have a certain wall thickness, and the material of the oil cap 3 is as far as possible not easy to deform and does not chemically react with the refrigerant and the cooling oil; the wall thickness of the oil cap 3 will provide the oil cap 3 with better structural strength, so that the oil shell is not easy to deform under the dual pressure of the cooling oil and the refrigerant, thereby ensuring the isolation effect of the oil cap 3 on the refrigerant and the cooling oil, and improving the integrity of the overall structure.
[0048] In order to adapt to the overall shape of the compressor, the cross-section of the oil cap 3 is circular, that is, the oil cap 3 as a whole is similar to a cylinder, so as to improve the adaptability of the oil cap 3 to the overall structure; it should be noted that the shape of the oil cap 3 can be adjusted according to actual design needs or structural needs to ensure the isolation effect of the oil cap 3 on the refrigerant and cooling oil.
[0049] Reference Figure 5 , Figure 6 , the end surface of the oil cover 3 in contact with the lower bearing 2 has a first flange 31; it should be noted that, in order to further improve the airtightness of the overall structure, the first flange 31 is welded to the shell 1, that is, the outer circumference of the first flange 31 is welded to the inner wall of the shell 1, so that the oil cover 3 itself can independently isolate the high-pressure area and the low-pressure area in the shell 1; and the oil cover 3 itself is not easily impacted, so the welding strength between the first flange 31 and the shell 1 is guaranteed, that is, the welding of the first flange 31 and the shell 1 will provide good airtightness for distinguishing the high-pressure area and the low-pressure area in the shell 1; in addition, on the above basis, combined with the description of the welding of the lower bearing 2, the welding of the oil cover 3 and the lower bearing 2 to the shell 1 will further improve the airtightness of the high-pressure area and the low-pressure area in the shell 1.
[0050] It should be emphasized that, in the present embodiment, the cross-section of the oil cover 3 is circular, so that the first flange 31 is ring-shaped, and the first flange 31 is integrally formed on the outer circumferential side of the oil cover 3; the contact surface of the first flange 31 and the lower bearing 2 and the end surface of the oil cover 3 are located in the same plane to ensure the fit between the oil cover 3 and the lower bearing 2; accordingly, a first fixing hole 32 is opened on the first flange 31; a fastener is arranged in the first fixing hole 32, and the first flange 31 is fixed to the lower bearing 2 by the fastener, so as to complete the fixation of the oil cover 3; in the present embodiment, the fastener is a screw of the lower bearing 2, that is, the oil cover 3 and the lower bearing 2 share a screw; the setting of the oil cover 3 and the lower bearing 2 sharing a screw makes it unnecessary to re-drill a hole or set other fixing structures on the lower bearing 2 when fixing the oil cover 3, that is, the structural integrity of the lower bearing 2 is guaranteed; in other embodiments, the fastener can also be other objects that can complete the fixed connection, such as rivets.
[0051] In order to fix the oil cover 3 on the lower bearing 2, the oil cover 3 can be fixed to the lower bearing 2 by fasteners, so that the welding of the oil cover 3 and the housing 1 is equivalent to expanding the welding area between the lower bearing 2 and the housing 1, thereby further improving the connection strength between the lower bearing 2 and the housing 1, and improving the air tightness between the lower bearing 2 and the housing 1.
[0052] Specifically, in order to increase the welding area between the first flange 31 and the shell 1, the outer periphery of the first flange 31 can be bent upward or downward to form a fixing ring 34, and the fixing ring 34 is also fixedly connected to the shell 1, that is, the fixing ring 34 can also be welded; the setting of the fixing ring 34 will expand the surface area of the outer periphery of the first flange 31, thereby expanding the welding area between the first flange 31 and the shell 1, further expanding the welding area between the lower bearing 2 and the shell 1, and improving the air tightness between the lower bearing 2 and the shell 1.
[0053] In order to introduce the refrigerant in the liquid storage chamber 11 into the cylinder 13, an oil return and air return passage is provided on the lower bearing 2, and the refrigerant and the cooling oil entering the liquid storage chamber 11 along the refrigeration pipeline can enter the cylinder 13 through the oil return and air return passage; it should be noted that in the utility model, the oil return and air return passage is connected to the return pipe 21, and the return pipe 21 will introduce the refrigerant into the cylinder 13. In order to ensure the normal operation of the return pipe 21, a pipe hole 35 for making way for the return pipe 21 is provided on the first flange 31, and the return pipe 21 can be embedded in the pipe hole 35, thereby ensuring the stable operation of the return pipe 21 and improving the adaptability of the overall structure; and the setting of the pipe hole 35 on the first flange 31 will limit the return pipe 21, further improving the stability of the overall structure.
[0054] Reference Figures 7 to 9In order to ensure the structural strength of the tube hole 35 on the first flange 31, the tube hole 35 can be made to protrude into the oil storage cavity, and correspondingly, a clearance recess 44 matching the shape of the tube hole 35 is also provided on the side wall of the oil cover 3, that is, the outer peripheral wall of the oil cover 3 is recessed to form a clearance recess 44, in other words, the side wall of the oil cover 3 corresponding to the tube hole 35 protrudes into the oil storage cavity to form a clearance recess 44; the protruding setting of the tube hole 35 into the oil storage cavity increases the thickness of the first flange 31 at the location where the tube hole 35 is set, thereby ensuring that the first flange 31 and the oil cover 3 are not easily insufficient in structural strength due to the setting of the tube hole 35, thereby ensuring the reliability and service life of the overall structure.
[0055] Reference Figure 5 and Fig. 9 Based on the above description, in the present utility model, in order to reduce the heat transferred from the cooling oil refluxed into the oil cover 3 to the liquid storage chamber 11 through the oil cover 3, a heat shield 4 is provided on the oil cover 3 to isolate the direct contact between the liquid storage chamber 11 and the outer surface of the oil cover 3, thereby reducing the heat transferred from the cooling oil in the oil cover 3 to the liquid storage chamber 11, and further reducing the ineffective heat absorption of the refrigerant in the liquid storage chamber 11. Specifically, the heat shield 4 has a second flange 41, and the second flange 41 is fixed on the lower bearing 2, so that the heat shield 4 is entirely covered on the oil cover 3; from the perspective of the compressor as a whole, the heat shield 4 is provided below the oil cover 3 and covers the oil cover 3, and further the heat shield 4 can isolate the outer surface of the oil cover 3 from the refrigerant to prevent the heat transfer from the cooling oil to the refrigerant.
[0056] It should be noted that, in order to improve the integration of the overall structure, the second flange 41, the first flange 31 and the lower bearing 2 can share fasteners, thereby simplifying the number of parts and reducing the complexity of the overall structure; specifically, a second fixing hole 411 is provided on the second flange 41, and the second fixing hole 411 on the second flange 41 corresponds one-to-one to the first fixing hole 32 on the first flange 31, and the fastener can pass through the second fixing hole 411 of the second flange 41 and the first fixing hole 32 on the first flange 31 in sequence and then be fixedly connected to the lower bearing 2, so that the first flange 31 is located between the second flange 41 and the lower bearing 2, thereby improving the integration of the overall structure, reducing the parts required for fixing the second flange 41, and reducing the difficulty of installing the overall structure.
[0057] Reference Figure 5 , Figure 8 and Fig. 9Accordingly, based on the above ideas, considering that if the second flange 41 and the first flange 31 share the same fastener, the second flange 41 will fit tightly with the first flange 31, which can be understood as part of the oil cover 3 will fit tightly with part of the heat insulation cover 4, so that there is still a possibility that the heat of the cooling oil will be transferred to the heat insulation cover 4 through the oil cover 3, and then transferred to the liquid storage chamber 11 by the heat insulation cover 4; in order to reduce the heat transfer between the oil cover 3 and the heat insulation cover 4, a heat insulation gasket 42 is arranged between the first flange 31 and the second flange 41. The arrangement of the heat insulation gasket 42 will effectively reduce the heat transfer between the oil cover 3 and the heat insulation cover 4, further reducing the possibility of ineffective overheating of the refrigerant in the liquid storage chamber 11, thereby ensuring the energy efficiency of the compressor.
[0058] Optionally, in order to further improve the stability of the heat shield 4, that is, to reduce the possibility of the heat shield 4 falling off the oil cover 3, the outer periphery of the second flange 41 can be bent downward to form a connecting ring 46, and the connecting ring 46 can be fixedly connected to the shell 1; specifically, after the heat shield 4 and the oil cover 3 are both installed on the lower bearing 2, the connecting ring 46 can be welded and fixed to the shell 1, thereby increasing the fixing points of the heat shield 4, so that the heat shield 4 can be fixed by welding the connecting ring 46 and the shell 1 in addition to being installed on the lower bearing 2 by the fasteners 33, thereby further improving the stability of the heat shield 4; from another perspective, establishing a fixed relationship between the heat shield 4 and the shell 1 will further improve the consistency and stability of the overall structure.
[0059] In one embodiment of the utility model, the heat insulating gasket 42 can be an integrated gasket, that is, the heat insulating gasket 42 has a shape and size similar to the first flange 31 and / or the second flange 41, and the heat insulating gasket 42 is provided with a through hole 421 for the fastener to pass through; when installing the heat insulating gasket 42, the heat insulating gasket 42 can be placed on the second flange 41, and the through hole 421 is aligned with the fixing hole on the second flange 41; then the oil cover 3 is placed in the heat insulation cover 4, and the first fixing hole 32 on the first flange 31 is aligned with the through hole 421 of the heat insulating gasket 42, and then the end of the fastener is inserted from the side of the second flange 41 away from the first flange 31, and the end of the fastener will pass through the second fixing hole 411 of the second flange 41, the through hole 421 and the first fixing hole 32 of the first flange 31 in sequence to be exposed, and then the overall structure is installed on the lower end surface to complete the installation.
[0060] It should be noted that a plurality of heat-insulating grooves 422 may be provided at intervals on the heat-insulating gasket 42, and the plurality of heat-insulating grooves 422 may be evenly spaced along the curvature of the heat-insulating gasket 42, or may be irregularly spaced; the purpose of providing the heat-insulating grooves 422 is to form an air gap between the first flange 31 and the second flange 41, so as to further improve the heat-insulating effect, thereby further reducing the heat transferred from the oil cover 3 to the heat-insulating cover 4; in addition, the heat-insulating grooves 422 may also have a variety of shapes, such as regular or irregular shapes such as arcs, rectangles or trapezoids, and a gap may be formed between the first flange 31 and the second flange 41; it should be noted that in addition to the heat-insulating grooves 422, heat-insulating protrusions may also be provided on the heat-insulating gasket 42, and the heat-insulating protrusions may also have a variety of regular or irregular shapes, thereby forming a gap between the first flange 31 and the second flange 41 to isolate the heat transfer. The above is merely an example, and the specific shape, quantity, style and distribution of the heat insulation grooves 422 or the heat insulation protrusions on the heat insulation gasket 42 can be designed according to actual needs.
[0061] Based on the above, considering that when setting the heat-insulating gasket 42, it is also necessary to match the pipe hole 35 formed by the first flange 31 to make way for the return air pipe 21, the second flange 41 and the integrated gasket can also be provided with a pipe opening 43, so that the setting of the second flange 41 and the integrated gasket will also make way for the return air pipe 21, thereby ensuring the normal operation of the cylinder 13; in addition, the setting of the pipe opening 43 of the second flange 41 and the integrated gasket will improve the degree of uniformity of the shapes among the first flange 31, the second flange 41 and the integrated gasket, and further improve the integration of the overall structure.
[0062] Reference Figure 8 In the present utility model, in order to further improve the adaptability of the overall structure, a recess 44 is formed on the outer peripheral wall of the heat insulation cover 4, so that the heat insulation cover 4 maintains the uniformity of shape with the oil cover 3, thereby ensuring the adaptability between the oil cover 3 and the heat insulation cover 4; and the recess 44 on the heat insulation cover 4 can also make way for the return air pipe 21, further ensuring the normal operation of the return air pipe 21.
[0063] Reference Figure 7In order to improve the heat insulation effect of the heat insulation cover 4 on the oil cover 3 and the liquid storage chamber 11, a plurality of combination parts 45 are formed on the outer peripheral wall of the heat insulation cover 4 inwardly concave, and the combination parts 45 can change the heat insulation gap, that is, change the distance between the inner surface of the heat insulation cover 4 and the outer surface of the oil cover 3; specifically, taking the inner surface of the heat insulation cover 4 as a reference, that is, the inner surface of the heat insulation cover 4 is radially protruded to form a plurality of combination parts 45, and the arrangement of the combination parts 45 makes the gap between the inner surface of the heat insulation cover 4 and the outer surface of the oil cover 3 change, thereby having a better heat insulation effect; on the other hand, the combination parts 45 can be matched with the position of the fixing hole, so that the arrangement of the combination parts 45 can also provide a space for the installation of fasteners, and then the arrangement of the combination parts 45 can not only further improve the heat insulation effect of the heat insulation gap, but also facilitate the installation of the heat insulation cover 4 by the installer, thereby improving the convenience of the installation of the heat insulation cover 4.
[0064] In other embodiments of the utility model, the heat shield 4 may be embedded in the oil cap 3, that is, there is a heat insulation gap between the inner surface of the oil cap 3 and the outer surface of the heat shield 4, thereby reducing the possibility of the cooling oil transferring heat to the low-temperature refrigerant through the oil cap 3. Specifically, in addition to the above embedding method, the heat shield 4 may also be fixed inside the oil cap 3 by welding or other processes.
[0065] The utility model also proposes a refrigeration device, which includes the above-mentioned compressor. The specific structure of the compressor refers to the above-mentioned embodiment. Since the refrigeration device adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.
[0066] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A compressor, characterized in that: include A housing, the housing being integrally provided, and a lower bearing being provided in the housing; A liquid storage chamber, the liquid storage chamber is used to store low-pressure refrigerant, and the liquid storage chamber is formed at the bottom of the shell; A cylinder, the cylinder being disposed in the shell and used for pressurizing the low-pressure refrigerant; An oil cover, the oil cover is arranged on the lower end surface of the lower bearing, the oil cover is welded to the housing, and the oil cover divides the interior of the housing into a high-pressure area and a low-pressure area, wherein the low-pressure area includes the liquid storage chamber; A heat shield is provided on the oil cover, the heat shield has a second flange, the outer periphery of the second flange is bent downward to be provided with a connecting ring, and the connecting ring is fixedly connected to the shell.
2. The compressor according to claim 1, characterized in that The oil cover has a first flange, and the first flange is welded to the housing.
3. The compressor according to claim 2, characterized in that The lower bearing is provided with an air return pipe, and the first flange is provided with a pipe hole for the air return pipe to pass through.
4. The compressor according to claim 3, characterized in that A recessed recess is formed on the outer peripheral wall of the oil cover, and the recessed recess is used to make way for the air return pipe.
5. The compressor according to any one of claims 2 to 4, characterized in that: The oil cover is fixedly connected to the lower bearing.
6. The compressor according to claim 5, characterized in that A first fixing hole is formed on the first flange, a fixing piece is disposed in the first fixing hole, and an end of the fixing piece passes through the first fixing hole and is connected to the lower bearing.
7. The compressor according to claim 6, characterized in that The height of the first flange is not less than 3 mm.
8. The compressor according to claim 6, characterized in that The second flange is provided with a second fixing hole for the fixing member to pass through.
9. The compressor according to claim 8, characterized in that or The heat insulation cover is embedded in the oil cover.
10. The compressor according to claim 5, characterized in that The outer circumference of the first flange is bent upward to form a fixing ring, and the fixing ring is fixedly connected to the shell.
11. The compressor according to claim 5, characterized in that The outer periphery of the first flange is bent downward to form a fixing ring, and the fixing ring is fixedly connected to the shell.
12. A refrigeration device, characterized in that: Comprising a compressor as claimed in any one of claims 1-11.