Liquid accumulator and compressor

Abstract

The utility model provides a liquid storage device and a compressor. The liquid storage device comprises a barrel body, a liquid inlet and a liquid outlet, the upper cover comprises an upper cover body and a first annular mounting part, and the first annular mounting part is arranged on the edge of the upper cover body and extends in the direction from the center of the upper cover body to the edge; the first flanging structure is arranged on the edge of the first annular mounting part, and the first flanging structure extends downwards in the height direction; the annular groove is formed in the side, close to the barrel, of the first annular mounting part, and one end of the barrel is arranged in the annular groove. According to the liquid storage device, condensate water flowing down from the upper cover body passes through the first annular mounting part and then flows downwards from the first flanging structure, so that the condensate water cannot be left on the first annular mounting part, and the end of the first flanging structure is also far away from the joint of the upper cover and the cylinder body, so that the condensate water cannot be left on the first annular mounting part; therefore, the joint of the upper cover and the barrel can be prevented from rusting. And meanwhile, the cylinder body can be limited through the annular groove, so that the connection between the upper cover and the cylinder body is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and more specifically, to a liquid receiver and a compressor. Background Technology

[0002] The liquid receiver is an important component of the compressor. A liquid receiver structure is disclosed in the related technology, in which a small platform is set on the end cover protruding from the outer periphery of the cylinder to meet the requirements of the resistance welding process. However, this platform structure will accumulate condensate in actual use, and due to the sharp edge effect, the end cover will start to rust at the weak edge coating, affecting the reliability of the product.

[0003] Therefore, designing a liquid reservoir that can prevent rust from forming on the edge of the end cap has become an urgent problem to be solved. Utility Model Content

[0004] This invention aims to at least solve the problem of easy rusting at the edge of the liquid reservoir end cap.

[0005] Therefore, the first aspect of this utility model provides a liquid reservoir.

[0006] A second aspect of this invention provides a compressor.

[0007] In view of the above, the first aspect of this utility model provides a liquid reservoir, comprising: a cylindrical body; a top cover, including a top cover body and a first annular mounting portion, the first annular mounting portion being disposed at the edge of the top cover body and extending along the direction from the center of the top cover body to the edge; a first flange structure being disposed at the edge of the first annular mounting portion and extending downward along the height direction; and an annular groove being disposed on the side of the first annular mounting portion near the cylindrical body, one end of the cylindrical body being disposed in the annular groove.

[0008] The liquid reservoir provided by this utility model includes a cylinder and a top cover. The top cover includes a top cover body and a first annular mounting portion, which is located at the edge of the top cover body and extends from the center of the top cover body to the edge. A first flange structure is located at the edge of the first annular mounting portion and extends downward along the height direction. This allows condensate flowing from the top cover body to flow downward through the first annular mounting portion, preventing condensate from accumulating on the first annular mounting portion. Furthermore, since the end of the first flange structure is also far from the connection between the top cover and the cylinder, rust at the connection point is prevented. Simultaneously, to facilitate the fixed connection between the top cover and the cylinder, an annular groove can be provided on the side of the first annular mounting portion near the cylinder, with one end of the cylinder placed within the annular groove. This allows the cylinder to be positioned within the annular groove, facilitating the connection between the top cover and the cylinder. Additionally, when the top cover and the cylinder are resistance welded, the annular groove prevents burrs generated during welding from entering the cylinder.

[0009] The liquid reservoir provided by this utility model may also have the following additional technical features:

[0010] In some embodiments, optionally, the outer side of the annular groove extends to a first flange structure, the first flange structure being the outer sidewall of the annular groove.

[0011] In these embodiments, the outer side of the annular groove can be extended to the first flange structure, in which case the first flange structure becomes the outer wall of the annular groove. This arrangement facilitates the positioning and docking of the top cover and the cylinder body. Using the flange structure as a positioning reference can improve assembly efficiency and accuracy, and can provide a larger connection contact surface, making the connection force more uniform and enhancing the reliability of the connection.

[0012] In some embodiments, optionally, the width of the annular groove is greater than or equal to 1.1t; and / or the flatness of the annular groove is greater than or equal to 0.1 and less than or equal to 0.5; and / or the depth of the annular groove is greater than or equal to 0.3t; wherein t is the wall thickness of the top cover.

[0013] In these embodiments, by limiting the width of the annular groove, it is possible to ensure that the cylinder can be smoothly inserted into the annular groove for installation, and the installation of the cylinder can also be effectively limited. By limiting the flatness of the annular groove, the top cover can make full contact with the cylinder, preventing severe spatter during welding when the surface is too rough, and ensuring that there is no missed welding.

[0014] In some embodiments, the difference between the outer diameter of the annular groove and the outer diameter of the cylinder is greater than or equal to 0.2 mm and less than or equal to 2 mm.

[0015] In these embodiments, by limiting the difference between the outer diameter of the annular groove and the outer diameter of the cylinder to between 0.2 mm and 2 mm, the first flange structure can be made to prevent current separation during welding, so that all energy is concentrated at the designed welding position, thus ensuring welding strength.

[0016] In some embodiments, optionally, a first rounded corner is provided between the outer side of the first flange structure and the outer side of the first annular mounting portion; the radius of the first rounded corner is greater than or equal to 0.5t, where t is the wall thickness of the top cover.

[0017] In these embodiments, a first rounded corner can be provided between the outer side of the first flange structure and the outer side of the first annular mounting part, and the radius of the first rounded corner is limited to greater than or equal to 0.5 times the thickness of the upper cover wall, so that the condensate on the reservoir can flow down along the upper cover and will not remain on the first annular mounting part.

[0018] In some embodiments, optionally, a second rounded corner is provided between the outer side of the first annular mounting portion and the outer side of the upper cover body; the radius of the second rounded corner is greater than or equal to 0.6t, where t is the wall thickness of the upper cover.

[0019] In these embodiments, a second rounded corner can be provided between the outer side of the first annular mounting part and the outer side of the upper cover body, and the radius of the second rounded corner is limited to greater than or equal to 0.6 times the wall thickness of the upper cover. This ensures that condensate will not accumulate at the angle between the outer side of the first annular mounting part and the outer side of the upper cover body.

[0020] In some embodiments, optionally, the flange length of the first flange structure is greater than or equal to 0.8t, where t is the wall thickness of the upper cover.

[0021] In these embodiments, the flange length of the first flange structure can be limited to greater than or equal to 0.8 times the thickness of the upper cover wall. This can effectively prevent condensation from accumulating on the first annular mounting part and also save costs.

[0022] In some embodiments, the reservoir may optionally include a lower cover, comprising a lower cover body and a second annular mounting portion, the second annular mounting portion being disposed at the edge of the lower cover body, extending along the direction from the center of the lower cover body to the edge, and forming a stepped structure with the edge of the lower cover body, the other end of the cylinder abutting against one side of the second annular mounting portion, and the edge of the lower cover body being able to radially limit the cylinder.

[0023] In these embodiments, the reservoir further includes a lower cover, which comprises a lower cover body and a second annular mounting portion. The second annular mounting portion is disposed at the edge of the lower cover body, extends along the direction from the center of the lower cover body to the edge, and forms a stepped structure with the edge of the lower cover body. The other end of the cylinder abuts against one side of the second annular mounting portion, and the edge of the lower cover body can radially limit the cylinder. It is understood that by forming a stepped structure in the lower cover, the cylinder can be radially limited, preventing radial movement of the cylinder.

[0024] In some embodiments, the reservoir may optionally include a second flange structure disposed at the edge of the second annular mounting portion, and the second flange structure extending downward in the height direction.

[0025] In these embodiments, a second flange structure can also be provided on the lower cover to guide condensate downwards and prevent condensate from accumulating on the second annular mounting portion. Specifically, the second flange structure can be provided at the edge of the second annular mounting portion and extend downwards along the height direction.

[0026] In some embodiments, optionally, the flange length of the second flange structure is greater than or equal to 0.8h, where h is the wall thickness of the lower cover.

[0027] In these embodiments, the flange length of the second flange structure is greater than or equal to 0.8 times the thickness of the lower cover wall, which can effectively prevent condensation from accumulating on the second annular mounting part and also save costs.

[0028] In some embodiments, optionally, a third rounded corner is provided between the outer side of the second flange structure and the side of the second annular mounting portion near the cylinder; the radius of the third rounded corner is greater than or equal to 0.5h, where h is the wall thickness of the lower cover.

[0029] In these embodiments, a third rounded corner can be provided between the outer side of the second flange structure and the side of the second annular mounting part near the cylinder, and the radius of the third rounded corner is limited to greater than or equal to 0.5 times the thickness of the lower cover wall, so that the condensate on the reservoir can flow down along the lower cover and will not remain on the second annular mounting part.

[0030] In some embodiments, optionally, the wall thickness of the upper cover is greater than or equal to 2 mm; and / or the wall thickness of the cylinder is greater than or equal to 2 mm; and / or the wall thickness of the lower cover is greater than or equal to 2 mm.

[0031] In these embodiments, the wall thickness of the upper cover and / or the lower cover and / or the wall thickness of the cylinder can be limited to 2 mm or more. This setting helps to ensure the stability of the liquid reservoir and also saves materials and reduces costs.

[0032] In some embodiments, the reservoir may optionally include: mating portions disposed at both ends of the cylinder, wherein the mating portions are sharp-angled structures formed by chamfering the ends of the cylinder.

[0033] In these embodiments, mating parts can also be provided at both ends of the cylinder, and the mating parts can be set as sharp corner structures formed by the chamfer of the end of the cylinder, so that the sharp corner structures can abut against the annular groove or the second annular mounting part. This can increase the resistance between the upper cover or lower cover and the cylinder, thereby generating more heat during welding and stronger welding strength.

[0034] In some embodiments, the mating part may optionally be a pointed structure formed by a chamfer on the inner side of the end of the cylinder, wherein the chamfer angle is greater than or equal to 50° and less than or equal to 60°.

[0035] In these embodiments, the mating part is a pointed corner structure formed by chamfering the inner side of the end of the cylinder, with the chamfer angle being greater than or equal to 50° and less than or equal to 60°. This design makes the pointed corner structure easy to process, and prevents it from being too long, which would affect the stability of the connection, or too short, which would prevent it from failing to perform its intended function.

[0036] In some embodiments, the mating part may optionally be a pointed structure formed by the chamfer of the outer end of the cylinder, wherein the chamfer angle is greater than or equal to 40° and less than or equal to 45°.

[0037] In these embodiments, the mating part is a pointed structure formed by chamfering the outer end of the cylinder, with the chamfer angle being greater than or equal to 40° and less than or equal to 45°. This design makes the pointed structure easy to process, and prevents it from being too long, which would affect the stability of the connection, or too short, which would prevent it from failing to perform its intended function.

[0038] The second aspect of this utility model provides a compressor, comprising: a liquid reservoir as described in any of the technical solutions of the first aspect.

[0039] The compressor provided in this application includes the liquid receiver as described in any of the technical solutions of the first aspect. Since the compressor provided in this application includes the liquid receiver as described in any of the technical solutions of the first aspect, it also possesses all the beneficial effects of the liquid receiver in any of the technical solutions of the first aspect, which will not be elaborated further here.

[0040] Additional aspects and advantages of this invention will become apparent in the description that follows, or may be learned by practice of this invention. Attached Figure Description

[0041] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0042] Figure 1 A schematic diagram of the structure of a liquid reservoir according to an embodiment of the present invention is shown;

[0043] Figure 2 A schematic diagram of the structure of the top cover according to an embodiment of the present invention is shown;

[0044] Figure 3 It shows Figure 2 Enlarged view of point A in the middle;

[0045] Figure 4 A schematic diagram of the structure of the lower cover according to an embodiment of the present invention is shown;

[0046] Figure 5 A schematic diagram of the structure of the cylinder according to an embodiment of the present invention is shown;

[0047] Figure 6 It shows Figure 5 Enlarged view of point B in the middle;

[0048] Figure 7 A schematic diagram of the compressor according to an embodiment of the present invention is shown.

[0049] in, Figures 1 to 7 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0050] 1. Liquid reservoir, 10. Cylinder, 101. Fitting part, 102. Sharp corner structure, 11. Top cover, 111. Top cover body, 112. First annular mounting part, 1122. Annular groove, 113. First flange structure, 114. First rounded corner, 115. Second rounded corner, 12. Bottom cover, 121. Bottom cover body, 122. Second annular mounting part, 123. Second flange structure, 124. Third rounded corner, 2. Compressor. Detailed Implementation

[0051] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0052] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0053] The following reference Figures 1 to 7 This invention describes a liquid reservoir and a compressor according to some embodiments of the present invention.

[0054] According to an embodiment of the first aspect of the present invention, such as Figures 1 to 6 As shown, the first aspect of this utility model provides a liquid reservoir 1, including a cylindrical body 10 and a top cover 11. The top cover 11 includes a top cover body 111 and a first annular mounting portion 112. The first annular mounting portion 112 is disposed at the edge of the top cover body 111 and extends along the direction from the center of the top cover body 111 to the edge. A first flange structure 113 is disposed at the edge of the first annular mounting portion 112, and the first flange structure 113 extends along the height direction (e.g., ...). Figure 1 (The direction indicated by H in the middle) extends downward. The annular groove 1122 is provided on the side of the first annular mounting part 112 near the cylinder 10, and one end of the cylinder 10 is provided in the annular groove 1122.

[0055] The liquid reservoir 1 provided by this utility model includes a cylindrical body 10 and a top cover 11. The top cover 11 includes a top cover body 111 and a first annular mounting portion 112. The first annular mounting portion 112 is disposed on the edge of the top cover body 111 and extends along the direction from the center of the top cover body 111 to the edge. A first flange structure 113 is disposed on the edge of the first annular mounting portion 112 and extends downward along the height direction. In this way, the condensate flowing down from the top cover body 111 will flow downward from the first flange structure 113 after passing through the first annular mounting portion 112, so that the condensate cannot remain on the first annular mounting portion 112. Furthermore, since the end of the first flange structure 113 is also far away from the connection between the top cover 11 and the cylindrical body 10, rust at the connection between the top cover 11 and the cylindrical body 10 can be avoided. Meanwhile, to facilitate the fixed connection between the top cover 11 and the cylinder 10, an annular groove 1122 can be provided on the side of the first annular mounting portion 112 near the cylinder 10. One end of the cylinder 10 is placed in the annular groove 1122, which can limit the position of the cylinder 10 and facilitate the connection between the top cover 11 and the cylinder 10. In addition, when the top cover 11 and the cylinder 10 are resistance welded, the annular groove 1122 can also prevent burrs generated during welding from entering the interior of the cylinder 10.

[0056] In some embodiments, the annular groove 1122 may be achieved by a similar machining process, such as punching or turning.

[0057] In some embodiments, the outer side of the annular groove 1122 may extend to the first flange structure 113, which is the outer wall of the annular groove 1122.

[0058] In these embodiments, the outer side of the annular groove 1122 can be extended to the first flange structure 113, whereby the first flange structure 113 serves as the outer wall of the annular groove 1122. This arrangement facilitates the positioning and docking of the top cover 11 and the cylinder 10. Using the flange structure as a positioning reference can improve assembly efficiency and accuracy, and provide a larger connection contact surface, resulting in uniform force distribution and enhanced connection reliability.

[0059] In some embodiments, optionally, the width of the annular groove 1122 is greater than or equal to 1.1t; and / or the flatness of the annular groove 1122 is greater than or equal to 0.1 and less than or equal to 0.5; and / or as... Figure 3 As shown, the depth L2 of the annular groove 1122 is greater than or equal to 0.3t; where t is the wall thickness of the upper cover 11.

[0060] In these embodiments, by limiting the width of the annular groove 1122, it is possible to ensure that the cylinder 10 can be smoothly inserted into the annular groove 1122 for installation, and the installation of the cylinder 10 can also be effectively limited. By limiting the flatness of the annular groove 1122, the top cover 11 can be in full contact with the cylinder 10, ensuring that there is no missed welding during welding.

[0061] In some embodiments, the difference between the outer diameter of the annular groove 1122 and the outer diameter of the cylinder 10 is greater than or equal to 0.2 mm and less than or equal to 2 mm.

[0062] In these embodiments, by limiting the difference between the outer diameter of the annular groove 1122 and the outer diameter of the cylinder 10 to between 0.2 mm and 2 mm, the first flange structure 113 can be made to prevent current separation during welding, so that all the energy is in the designed welding position, thus ensuring the welding strength.

[0063] In some embodiments, the difference between the outer diameter of the annular groove 1122 and the outer diameter of the cylinder 10 is optionally 0.2 mm.

[0064] In some embodiments, the difference between the outer diameter of the annular groove 1122 and the outer diameter of the cylinder 10 is optionally 0.5 mm.

[0065] In some embodiments, the difference between the outer diameter of the annular groove 1122 and the outer diameter of the cylinder 10 is optionally 1 mm.

[0066] In some embodiments, the difference between the outer diameter of the annular groove 1122 and the outer diameter of the cylinder 10 is optionally 1.5 mm.

[0067] In some embodiments, the difference between the outer diameter of the annular groove 1122 and the outer diameter of the cylinder 10 is optionally 2 mm.

[0068] In some embodiments, optionally, a first rounded corner 114 is provided between the outer side of the first flange structure 113 and the outer side of the first annular mounting portion 112; the radius of the first rounded corner 114 is greater than or equal to 0.5t, where t is the wall thickness of the upper cover 11.

[0069] In these embodiments, a first rounded corner 114 can be provided between the outer side of the first flange structure 113 and the outer side of the first annular mounting portion 112, and the radius of the first rounded corner 114 is limited to greater than or equal to 0.5 times the wall thickness of the upper cover 11, so that the condensate on the reservoir 1 can flow down along the upper cover 11 and will not remain on the first annular mounting portion 112.

[0070] In some embodiments, optionally, a second rounded corner 115 is provided between the outer side of the first annular mounting portion 112 and the outer side of the upper cover body 111; the radius of the second rounded corner 115 is greater than or equal to 0.6t, where t is the wall thickness of the upper cover 11.

[0071] In these embodiments, a second rounded corner 115 may be provided between the outer side of the first annular mounting portion 112 and the outer side of the upper cover body 111, and the radius of the second rounded corner 115 may be limited to greater than or equal to 0.6 times the wall thickness of the upper cover 11. This will prevent condensate from accumulating at the angle between the outer side of the first annular mounting portion 112 and the outer side of the upper cover body 111.

[0072] In some embodiments, optionally, such as Figure 2 and Figure 3 As shown, the flange length L1 of the first flange structure 113 is greater than or equal to 0.8t, where t is the wall thickness of the upper cover 11.

[0073] In these embodiments, the flange length of the first flange structure 113 can be limited to greater than or equal to 0.8 times the wall thickness of the top cover 11, which can effectively prevent condensation from accumulating on the first annular mounting portion 112 and also save costs.

[0074] In some embodiments, optionally, the reservoir 1 further includes: a lower cover 12, including a lower cover body 121 and a second annular mounting portion 122, the second annular mounting portion 122 being disposed at the edge of the lower cover body 121, extending along the direction from the center to the edge of the lower cover body 121, and forming a stepped structure with the edge of the lower cover body 121; the other end of the cylinder 10 abuts against one side of the second annular mounting portion 122; the edge of the lower cover body 121 is capable of radially (e.g., ...) of the cylinder 10. Figure 5 (Limited direction indicated by R in the middle).

[0075] In these embodiments, the reservoir 1 further includes a lower cover 12, which includes a lower cover body 121 and a second annular mounting portion 122. The second annular mounting portion 122 is disposed at the edge of the lower cover body 121, extends along the direction from the center of the lower cover body 121 to the edge, and forms a stepped structure with the edge of the lower cover body 121. The other end of the cylinder 10 abuts against one side of the second annular mounting portion 122, and the edge of the lower cover body 121 can radially limit the cylinder 10. It can be understood that by forming a stepped structure in the lower cover 12, the stepped structure can be used to radially limit the cylinder 10 and prevent the cylinder 10 from radially moving.

[0076] In some embodiments, the reservoir 1 may optionally include a second flange structure 123 disposed at the edge of the second annular mounting portion 122, and the second flange structure 123 extends downward in the height direction.

[0077] In these embodiments, a second flange structure 123 may also be provided on the lower cover 12 to guide condensate downwards and prevent condensate from accumulating on the second annular mounting portion 122. Specifically, the second flange structure 123 may be provided on the edge of the second annular mounting portion 122 and extend downwards along the height direction.

[0078] In some embodiments, optionally, such as Figure 4 As shown, the flange length L3 of the second flange structure 123 is greater than or equal to 0.8h, where h is the wall thickness of the lower cover 12.

[0079] In these embodiments, the flange length of the second flange structure 123 is greater than or equal to 0.8 times the wall thickness of the lower cover 12, which can effectively prevent condensation from accumulating on the second annular mounting part 122 and also save costs.

[0080] In some embodiments, optionally, a third fillet 124 is provided between the outer side of the second flange structure 123 and the side of the second annular mounting portion 122 near the cylinder 10; the radius of the third fillet 124 is greater than or equal to 0.5h, where h is the wall thickness of the lower cover 12.

[0081] In these embodiments, a third rounded corner 124 can be provided between the outer side of the second flange structure 123 and the side of the second annular mounting portion 122 near the cylinder 10, and the radius of the third rounded corner 124 is limited to greater than or equal to 0.5 times the wall thickness of the lower cover 12, so that the condensate on the reservoir 1 can flow down along the lower cover 12 and will not remain on the second annular mounting portion 122.

[0082] In some embodiments, the wall thickness of the upper cover 11 is optionally greater than or equal to 2 mm; and / or the wall thickness of the cylinder 10 is greater than or equal to 2 mm; and / or the wall thickness of the lower cover 12 is greater than or equal to 2 mm.

[0083] In these embodiments, the wall thickness of the upper cover 11 and / or the lower cover 12 and / or the wall thickness of the cylinder 10 can be limited to 2 mm or more. This setting helps to ensure the stability of the liquid reservoir 1, and also saves materials and reduces costs.

[0084] In some embodiments, optionally, such as Figure 5 and Figure 6 As shown, the liquid reservoir 1 also includes a mating part 101, which is disposed at both ends of the cylinder 10. The mating part 101 is a pointed corner structure 102 formed by the chamfer of the end of the cylinder 10.

[0085] In these embodiments, mating portions 101 can be provided at both ends of the cylinder 10, and the mating portions 101 can be configured as sharp corner structures 102 formed by the chamfering of the ends of the cylinder 10, so that the sharp corner structures 102 can abut against the annular groove 1122 or the second annular mounting portion 122. This can increase the resistance between the upper cover 11 or the lower cover 12 and the cylinder 10, thereby generating more heat during welding and stronger welding strength.

[0086] In some embodiments, the mating part 101 may optionally be a pointed corner structure 102 formed by the chamfer of the inner side of the end of the cylinder 10, wherein the chamfer angle is greater than or equal to 50° and less than or equal to 60°.

[0087] In these embodiments, the mating part 101 is a pointed corner structure 102 formed by chamfering the inner side of the end of the cylinder 10, with the chamfer angle being greater than or equal to 50° and less than or equal to 60°. This arrangement makes the pointed corner structure 102 easy to process, and prevents it from being too long, which would affect the stability of the connection, or too short, which would prevent it from failing to perform its intended function.

[0088] In some embodiments, the mating part 101 may optionally be a pointed corner structure 102 formed by the inner chamfer of the end of the cylinder 10, and the chamfer angle is 50°.

[0089] In some embodiments, the mating part 101 may optionally be a pointed corner structure 102 formed by the inner chamfer of the end of the cylinder 10, and the chamfer angle is 55°.

[0090] In some embodiments, the mating part 101 may optionally be a pointed corner structure 102 formed by the inner chamfer of the end of the cylinder 10, and the chamfer angle is 60°.

[0091] In some embodiments, the mating part 101 may optionally be a pointed corner structure 102 formed by the chamfer of the outer end of the cylinder 10, wherein the chamfer angle is greater than or equal to 40° and less than or equal to 45°.

[0092] In these embodiments, the mating part 101 is a pointed corner structure 102 formed by chamfering the outer end of the cylinder 10, with the chamfer angle being greater than or equal to 40° and less than or equal to 45°. This arrangement makes the pointed corner structure 102 easy to process, and prevents it from being too long, which would affect the stability of the connection, or too short, which would prevent it from failing to perform its intended function.

[0093] In some embodiments, the mating part 101 may optionally be a pointed corner structure 102 formed by the chamfer of the outer end of the cylinder 10, with the chamfer angle being 40°.

[0094] In some embodiments, the mating part 101 may optionally be a pointed structure 102 formed by the chamfer of the outer end of the cylinder 10, with the chamfer angle being 41°.

[0095] In some embodiments, the mating part 101 may optionally be a pointed structure 102 formed by the chamfer of the outer end of the cylinder 10, with the chamfer angle being 43°.

[0096] In some embodiments, the mating part 101 may optionally be a pointed structure 102 formed by the chamfer of the outer end of the cylinder 10, with the chamfer angle being 45°.

[0097] According to one embodiment of the first aspect of this utility model, a liquid reservoir is provided, comprising a cup A (upper cover), a cup B (lower cover), and a cup C (cylinder). The upper cover and the cylinder, as well as the lower cover and the cylinder, are fixed by resistance welding. An outward-flaring structure (first flange structure) is added to the upper cover to provide rust prevention and improve the reliability of the resistance-welded liquid reservoir.

[0098] In some embodiments, optionally, the A cup is provided with an outward-folding surrounding structure (first folding structure), the length of which is L1≥0.8t, and the outward folding is required to have rounded corners, with the rounded corners required to be R1≥0.5t. The angle between the A cup platform (first annular mounting part) and the boss (upper cover body) is required to be rounded, with the rounded corners within the range of R2≥0.6t.

[0099] In these embodiments, the condensate on the reservoir can flow down along cup A and not remain on the small plane (first annular mounting part) of cup A, and the sharp edge of cup A is also far away from the welding position, which can effectively achieve the function of rust prevention.

[0100] In some embodiments, the inner diameter of cup A is optionally 0.2 mm to 2 mm larger than the outer diameter of cup C.

[0101] In these embodiments, the inner diameter of cup A does not contact the outer wall of cup C, which ensures that the current will not be separated by the outer surrounding structure during welding, so that all the energy is in the designed welding position, thus guaranteeing the welding strength.

[0102] In some embodiments, the A cup may optionally have an annular groove plane inside, the annular plane is required to have a flatness in the range of 0.1-0.5, and the groove depth L3≥0.2t, the annular groove can be realized by punching or turning or other similar processing technology.

[0103] In these embodiments, ensuring the flatness of the annular groove on the inner wall of cup A allows cup A and cup C to make full contact, preventing any missed welds during welding. At the same time, the annular groove also enables cup A and cup C to be positioned together and prevents burrs generated during welding from entering the tank (cylinder).

[0104] In some embodiments, chamfers are optionally provided on the inner and / or outer sides of the C-cup to form a pointed corner structure at the end of the C-cup, wherein the inner chamfer is required to be 50°-60° and the outer chamfer is required to be 40°-45°, so that the A-cup is in contact with the pointed corner structure.

[0105] In these embodiments, this design reduces the contact area between cup C and cup A, increasing the resistance between cup A and cup C, resulting in greater heat generation during welding and stronger welding strength.

[0106] In some embodiments, optionally, the outer extension of cup B is bent downwards, the length of the outer surrounding structure of cup B is L4≥0.8t, and the outer edge is required to be rounded with a radius of R3≥0.5t. The angle between the platform of cup A and the boss is required to be rounded with a radius of R4≥0.6t.

[0107] In these embodiments, by bending the outer edge of the B cup downwards, the coating effect of the sharp edge of the B cup can be enhanced, and the effect of preventing condensation from accumulating can be achieved, thus preventing rust.

[0108] In some embodiments, the C cup and the A cup are optionally connected by resistance welding, with two welding stages. The first welding voltage is 600V-800V and the first welding pressure is 60KN-130KN. The second welding voltage is 300V-400V and the second welding pressure is within the range of 90KN-110KN.

[0109] In these embodiments, welding strength can be improved and resistance welding strength can be guaranteed by welding the welding positions in segments.

[0110] In some embodiments, the reservoir may optionally include: a first mounting tube disposed on the upper cover, a second mounting tube disposed on the lower cover, and a third mounting tube disposed inside the cylinder, wherein the third mounting tube is resistance welded to the cylinder. The reservoir also includes a filter screen support and a partition plate.

[0111] like Figure 7 As shown, the second aspect of this utility model provides a compressor 2, comprising: a liquid reservoir 1 as described in any embodiment of the first aspect.

[0112] The compressor 2 provided in this application includes the liquid receiver 1 in any embodiment of the first aspect. Since the compressor 2 provided in this application includes the liquid receiver 1 in any embodiment of the first aspect, it also possesses all the beneficial effects of the liquid receiver 1 in any embodiment of the first aspect, which will not be elaborated further here.

[0113] In some embodiments, the compressor 2 may optionally include a compressor body connected to the liquid receiver 1.

[0114] In this utility model, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0115] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0116] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A liquid reservoir, characterized in that, include: cylindrical body; The top cover includes a top cover body and a first annular mounting portion, wherein the first annular mounting portion is disposed on the edge of the top cover body and extends along the direction from the center of the top cover body to the edge; The first flange structure is disposed on the edge of the first annular mounting portion, and the first flange structure extends downward along the height direction; An annular groove is provided on the side of the first annular mounting portion near the cylinder body, and one end of the cylinder body is provided in the annular groove.

2. The liquid reservoir according to claim 1, characterized in that, The outer side of the annular groove extends to the first flange structure, which is the outer wall of the annular groove.

3. The liquid reservoir according to claim 1, characterized in that, The width of the annular groove is greater than or equal to 1.1t; and / or The flatness of the annular groove is greater than or equal to 0.1 and less than or equal to 0.5; and / or The depth of the annular groove is greater than or equal to 0.3t; Where t is the wall thickness of the upper cover.

4. The liquid reservoir according to claim 1, characterized in that, The difference between the outer diameter of the annular groove and the outer diameter of the cylinder is greater than or equal to 0.2 mm and less than or equal to 2 mm.

5. The liquid reservoir according to claim 1, characterized in that, A first rounded corner is provided between the outer side of the first flange structure and the outer side of the first annular mounting part; The radius of the first rounded corner is greater than or equal to 0.5t, where t is the wall thickness of the upper cover.

6. The liquid reservoir according to claim 1, characterized in that, A second rounded corner is provided between the outer side of the first annular mounting part and the outer side of the upper cover body; The radius of the second rounded corner is greater than or equal to 0.6t, where t is the wall thickness of the upper cover.

7. The liquid reservoir according to claim 1, characterized in that, The flange length of the first flange structure is greater than or equal to 0.8t, where t is the wall thickness of the upper cover.

8. The liquid reservoir according to claim 1, characterized in that, Also includes: The lower cover includes a lower cover body and a second annular mounting portion. The second annular mounting portion is disposed on the edge of the lower cover body, extends along the direction from the center of the lower cover body to the edge, and forms a stepped structure with the edge of the lower cover body. The other end of the cylinder abuts against one side of the second annular mounting portion. The edge of the lower cover body can radially limit the cylinder.

9. The liquid reservoir according to claim 8, characterized in that, Also includes: The second flange structure is disposed at the edge of the second annular mounting portion, and the second flange structure extends downward along the height direction.

10. The liquid reservoir according to claim 9, characterized in that, The flange length of the second flange structure is greater than or equal to 0.8h, where h is the wall thickness of the lower cover.

11. The liquid reservoir according to claim 9, characterized in that, A third rounded corner is provided between the outer side of the second flange structure and the side of the second annular mounting part near the cylinder; The radius of the third rounded corner is greater than or equal to 0.5h, where h is the wall thickness of the lower cover.

12. The liquid reservoir according to claim 8, characterized in that, The wall thickness of the upper cover is greater than or equal to 2 mm; and / or The wall thickness of the cylinder is greater than or equal to 2 mm; and / or The wall thickness of the lower cover is greater than or equal to 2 mm.

13. The reservoir according to any one of claims 1 to 12, characterized in that, Also includes: The mating parts are provided at both ends of the cylinder, and the mating parts are sharp-angled structures formed by the chamfering of the ends of the cylinder.

14. The liquid reservoir according to claim 13, characterized in that, The mating part is a pointed-angle structure formed by the chamfer of the inner side of the end of the cylinder, wherein the angle of the chamfer is greater than or equal to 50° and less than or equal to 60°; and / or The mating part is a pointed structure formed by the chamfer on the outer side of the end of the cylinder, wherein the angle of the chamfer is greater than or equal to 40° and less than or equal to 45°.

15. A compressor, characterized in that, include: The reservoir as described in any one of claims 1 to 14.

Images