Protective sleeve, aluminum pipe assembly and refrigerator
By putting protective sleeves on the aluminum pipes, the excessive bending of the aluminum pipes is restricted by using the grooves and transition section structures, the flattening and breaking problems of the aluminum pipes during bending are solved, and the assembly reliability of the aluminum pipes and the refrigeration performance of the refrigerator are improved.
Patent Information
- Application Number
- CN202422168630.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-03
AI Technical Summary
During refrigerator production, aluminum tubes are prone to flattening or breaking during bending, resulting in increased remanufacturing operations and affecting refrigeration efficiency.
A protective sleeve is designed, which is arranged on an aluminum tube, with a plurality of grooves and transition sections for providing protection when the aluminum tube is bent and limiting its excessive bending.
Effectively reduce the risk of flattening and breaking of aluminum pipes during bending, improve the assembly reliability of aluminum pipes and the refrigeration efficiency of refrigerators.
Smart Images
Figure CN223077235U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of refrigerators, and particularly to a protective sleeve, an aluminum tube assembly and a refrigerator. Background Art
[0002] During the production process of refrigerators, aluminum tubes are commonly used parts, such as in the compressor compartment; during the assembly process of aluminum tubes, multiple bending operations are required; however, during the bending process, the risk of the aluminum tube being flattened or broken is relatively high. On the one hand, repair operations are needed, and on the other hand, after being assembled onto the refrigerator, it is likely to cause a decrease in refrigeration efficiency or a non-refrigeration phenomenon; therefore, there is an urgent need for a structure that can protect the aluminum tube during the assembly process of the aluminum tube. Summary of the Utility Model
[0003] The main purpose of the present application is to provide a protective sleeve, an aluminum tube assembly and a refrigerator, aiming to provide a protective sleeve that can protect the aluminum tube when the aluminum tube is bent, and reduce the risk of the aluminum tube being flattened or broken.
[0004] In a first aspect, the present application provides a protective sleeve. The protective sleeve is provided with a mounting hole for sleeving an aluminum tube; the protective sleeve includes an outer peripheral surface and a groove array. The outer peripheral surface and the hole wall surface of the mounting hole are oppositely arranged in the thickness direction of the protective sleeve; the groove array includes a plurality of grooves formed by recessing from the outer peripheral surface towards the hole wall surface. The grooves extend at least in the circumferential direction of the protective sleeve, and two circumferentially adjacent grooves are separated by a transition section.
[0005] Optionally, the groove array is provided with at least two groups, and the at least two groups of groove arrays are arranged at intervals along the axial direction of the protective sleeve; the transition sections on two axially adjacent groove arrays are arranged in a circumferential dislocation manner.
[0006] Optionally, the outer peripheral surface of the protective sleeve is provided with a first group of groove arrays, a second group of groove arrays and a third group of groove arrays that are arranged at intervals in sequence along the axial direction.
[0007] Among them, the transition sections on the first group of groove arrays and the third group of groove arrays are arranged at intervals in the axial direction of the protective sleeve.
[0008] Optionally, the outer peripheral surface of the protective sleeve is provided with a first group of groove arrays and a second group of groove arrays that are arranged at intervals in sequence along the axial direction.
[0009] Two adjacent grooves of the first group of groove arrays are separated by a first transition section, and two adjacent grooves of the second group of groove arrays are separated by a second transition section; there is a dislocation angle between the circumferentially adjacent first transition section and the second transition section, and the dislocation angle is half of the radian of the groove.
[0010] Optionally, the spacing between two axially adjacent groove arrays is the same as the width of the groove.
[0011] Optionally, the outer peripheral surface is flush with the surface of the transition section.
[0012] Optionally, the depth of the groove is L, and the wall thickness of the protective sleeve is H, where 1 / 3H ≤ L ≤ 2 / 3H.
[0013] In a second aspect, the present application also provides an aluminum tube assembly, including: an aluminum tube; and the protective sleeve as described above, the protective sleeve being sleeved on the aluminum tube.
[0014] Optionally, the protective sleeve is sleeved on the bent portion of the aluminum tube.
[0015] In a third aspect, the present application also provides a refrigerator, including the aluminum tube assembly as described above.
[0016] In the technical solution of the embodiment of the present application, an aluminum tube is inserted into the mounting hole of the protective sleeve to protect the aluminum tube when it is bent. The protective sleeve is recessed from the outer peripheral surface towards the hole wall surface to form a plurality of grooves, and the grooves extend at least in the circumferential direction of the protective sleeve, and two adjacent grooves are separated by a transition section; when the aluminum tube is bent, the groove walls of the plurality of grooves are squeezed or stretched, and the transition section restricts the further bending of the aluminum tube after the aluminum tube is bent to a certain angle, so that the aluminum tube is prevented from being excessively bent and flattened or broken, thereby protecting the aluminum tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.
[0018] Figure 1 It is a schematic structural diagram of the aluminum tube assembly provided by the embodiment of the present application;
[0019] Figure 2 It is a schematic structural diagram of the protective sleeve provided by the embodiment of the present application;
[0020] Figure 3 It is a schematic plan view of the protective sleeve provided by the embodiment of the present application;
[0021] Figure 4 For Figure 3 the cross-sectional view taken along line A-A in
[0022] Figure 5This is a schematic structural diagram of the protective case provided by the embodiment of the present application from the axial perspective.
[0023] List of reference numerals
[0024] 10 aluminum tube assembly 02b second transition section 100 protective sleeve 110 outer peripheral surface 200 aluminum tube S1 mounting hole 01 groove array S11 mounting hole wall 02 transition section 111 first groove array 01a groove 112 second groove array 02a first transition section 113 third groove array Detailed implementation manners
[0025] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0026] It should be noted that all directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.
[0027] In the present application, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the connection inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present application.
[0029] Combined with Figure 1 and Figure 2As shown in the figure, an embodiment of the present application proposes a protective sleeve 100, which is provided with a mounting hole S1 for sleeving an aluminum tube 200; the protective sleeve 100 includes an outer peripheral surface 110 and a groove array 01, and the outer peripheral surface 110 and the hole wall surface S11 of the mounting hole S1 are oppositely arranged in the thickness direction of the protective sleeve 100; the groove array 01 includes a plurality of grooves 01a recessed from the outer peripheral surface 110 towards the hole wall surface S11, and the grooves 01a extend at least in the circumferential direction of the protective sleeve 100 and are separated by a transition section 02 between two circumferentially adjacent grooves 01a.
[0030] In the technical solution of the embodiment of the present application, an aluminum tube 200 is inserted into the mounting hole S1 of the protective sleeve 100 to protect the aluminum tube 200 when it is bent. The protective sleeve 100 is formed with a plurality of grooves 01a recessed from the outer peripheral surface 110 towards the hole wall surface S11. The grooves 01a extend at least in the circumferential direction of the protective sleeve 100, and two adjacent grooves 01a are separated by a transition section 02; when the aluminum tube 200 is bent, the groove walls of the plurality of grooves 01a are squeezed or stretched, and the transition section 02 restricts the further bending of the aluminum tube 200 after the aluminum tube 200 is bent to a certain angle, so that the aluminum tube 200 is prevented from being excessively bent and flattened or broken, thereby protecting the aluminum tube 200.
[0031] In some embodiments, the grooves 01a may only extend in the circumferential direction; in other embodiments, the grooves 01a extend in the circumferential direction and also in the axial direction, that is, they may be helically extended.
[0032] As an alternative implementation of the above embodiment, as Figure 2 and Figure 3 shown, the groove array 01 is provided with at least two groups, and the at least two groups of groove arrays 01 are arranged at intervals along the axial direction of the protective sleeve 100; the transition sections 02 on two axially adjacent groove arrays 01 are arranged in a circumferentially staggered manner on the protective sleeve 100. By arranging the transition sections 02 on two axially adjacent groove arrays 01 in a circumferentially staggered manner on the protective sleeve 100, the protective sleeve 100 has transition sections 02 in multiple circumferential directions; during specific assembly, the protective sleeve 100 is provided with transition sections 02 in multiple circumferential directions. Therefore, when the aluminum tube 200 is bent, the transition sections bear bending loads in multiple directions and the stresses or deformations generated by the transition sections in different parts are different, which is beneficial to improving the bearing capacity of the protective sleeve and preventing the aluminum tube 200 from being excessively bent and flattened or broken.
[0033] As an alternative embodiment of the above embodiment, a first set of groove arrays 111, a second set of groove arrays 112, and a third set of groove arrays 113 are arranged at intervals along the axial direction on the outer peripheral surface 110 of the protective sleeve 100. Among them, the transition segments 02 on the first set of groove arrays 111 and the third set of groove arrays 113 are arranged at intervals in the axial direction of the protective sleeve 100. Refer to Figure 2 As shown, the second set of groove arrays 112 is between the first set of groove arrays 111 and the third set of groove arrays 113; the transition segments 02 on the first set of groove arrays 111 and the third set of groove arrays 113 are arranged at intervals in the axial direction of the protective sleeve 100; and the transition segments 02 on the first set of groove arrays 111 and the second set of groove arrays 112 are spaced apart axially and misaligned axially, and the transition segments 02 on the second set of groove arrays 112 and the third set of groove arrays 113 are spaced apart axially and misaligned axially.
[0034] As an alternative embodiment of the above embodiment, in combination with Figure 4 and Figure 5 As shown, a first set of groove arrays 111 and a second set of groove arrays 112 are arranged at intervals along the axial direction on the outer peripheral surface 110 of the protective sleeve 100. Two adjacent grooves 01a of the first set of groove arrays 111 are separated by a first transition segment 02a, and two adjacent grooves 01a of the second set of groove arrays 112 are separated by a second transition segment 02b. There is a misalignment angle between the circumferentially adjacent first transition segment 02a and the second transition segment 02b, and the misalignment angle is half of the radian of the groove 01a. For example, refer to Figure 5 As shown, the misalignment angle is β and the radian is α. That is, along the axial projection, there is a second transition segment 02b between two adjacent first transition segments 02a. Furthermore, the first transition segment 02a and the second transition segment 02b are arranged in an equiangular misalignment in the circumferential direction, so that when the aluminum tube 200 is bent in all directions, the transition segment 02 can effectively improve the ability to resist transition bending. For example, as Figure 5 As shown, the first set of groove arrays 111 has two first transition segments 02a, and their azimuth angles are 0 and 180° respectively, and the second set of groove arrays 112 has two second transition segments 02b, and their azimuth angles are 90° and 270° respectively.
[0035] For another example, the first set of groove arrays 111 has three first transition segments 02a, and their azimuth angles are 0°, 120°, and 240° respectively, and the second set of groove arrays 112 has three second transition segments 02b, and their azimuth angles are 60°, 180°, and 300° respectively.
[0036] As an alternative embodiment of the above embodiment, as Figure 3 shown, the distance between two axially adjacent groove arrays 01 is the same as the width of the groove 01a. In the embodiment, as Figure 3As shown, the distance between two axially adjacent groove arrays 01 is N, and the width of the groove 01a is M. With this setting, the width of the groove 01a and the distance between the groove arrays 01 are evenly arranged, so that the protective sleeve 100 has a large load-bearing capacity, thereby improving the protection level of the aluminum tube 200.
[0037] As an alternative implementation of the above embodiment, the outer peripheral surface 110 is flush with the surface of the transition section 02. In the embodiment, the main function of the transition section 02 is to limit the excessive bending of the aluminum tube 200. Therefore, the transition section 02 is the main load-bearing part when the aluminum tube 200 is bent. Making its surface flush with the outer peripheral surface 110 aims to reduce the stress concentration level at the connection between the transition section 02 and the outer peripheral surface 110, and reduce the risk of damage to the transition section 02 due to stress concentration.
[0038] As an alternative implementation of the above embodiment, as Figure 4 shown, the depth of the groove 01a is L, and the wall thickness of the protective sleeve 100 is H, where 1 / 3H ≤ L ≤ 2 / 3H. For example, as Figure 4 shown, the depth L of the groove 01a is approximately half of the wall thickness H of the protective sleeve 100. The proportional relationship between the depth of the groove 01a and the wall thickness of the protective sleeve 100 mainly depends on the maximum angle required for the bending of the aluminum tube 200. According to experiments, 1 / 3H ≤ L ≤ 2 / 3H can basically meet the requirements of most working conditions.
[0039] As Figure 1 shown, an aluminum tube assembly 10 according to an embodiment of the present application includes: an aluminum tube 200; and a protective sleeve 100 sleeved on the aluminum tube 200. The protective sleeve 100 adopts the technical solutions of some or all of the foregoing embodiments, and thus has some or all of the technical advantages of the foregoing embodiments. The protective sleeve 100 is sleeved on the aluminum tube 200, and can prevent the aluminum tube 200 from being excessively bent when the aluminum tube 200 is bent, thereby protecting the aluminum tube 200.
[0040] As an alternative implementation of the above embodiment, the protective sleeve 100 is sleeved on the bent portion of the aluminum tube 200. In the embodiment, the protective sleeve 100 is sleeved on the bent portion of the aluminum tube 200. It is easy to understand that the protective sleeve 100 is first sleeved on the preset bending position of the aluminum tube 200. When the aluminum tube 200 is bent, it can prevent the aluminum tube 200 from being excessively bent, thereby protecting the aluminum tube 200. After the bending is completed, the protective sleeve 100 is sleeved on the bent portion.
[0041] An embodiment of the present application further provides a refrigerator, including an aluminum tube assembly 10. The aluminum tube assembly 10 adopts a part or all of the technical solutions of the foregoing embodiment, and thus has some or all of the technical advantages of the foregoing embodiment. The refrigerator may be a cross-door refrigerator, a French door refrigerator, a side-by-side refrigerator or a top-opening refrigerator.
[0042] The foregoing are only alternative embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made under the application concept of the present application by using the content of the specification and drawings of the present application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present application.
Claims
1. A protective case, characterized in that, The protective sleeve is provided with a mounting hole for sleeving an aluminum tube; the protective sleeve includes an outer peripheral surface and a groove array, and the outer peripheral surface and the hole wall surface of the mounting hole are oppositely arranged in the thickness direction of the protective sleeve; the groove array includes a plurality of grooves formed by recessing from the outer peripheral surface towards the hole wall surface, and the grooves extend at least in the circumferential direction of the protective sleeve and are separated by transition sections between two circumferentially adjacent grooves.
2. The protective cover according to claim 1, characterized in that, At least two groups of the groove arrays are provided, and the at least two groups of groove arrays are arranged at intervals along the axial direction of the protective sleeve; the transition sections on two axially adjacent groove arrays are arranged in a circumferentially staggered manner.
3. The protective case according to claim 2, wherein The outer peripheral surface of the protective sleeve is provided with a first group of groove arrays, a second group of groove arrays and a third group of groove arrays which are arranged at intervals in sequence along the axial direction. Wherein, the transition sections on the first group of groove arrays and the third group of groove arrays are arranged at intervals in the axial direction of the protective sleeve.
4. The protective cover according to claim 2, wherein, The outer peripheral surface of the protective sleeve is provided with a first group of groove arrays and a second group of groove arrays which are arranged at intervals in sequence along the axial direction. Two adjacent grooves of the first group of groove arrays are separated by a first transition section, and two adjacent grooves of the second group of groove arrays are separated by a second transition section. There is a misalignment angle between the circumferentially adjacent first transition section and the second transition section, and the misalignment angle is half of the radian of the groove.
5. The protective cover according to claim 2, characterized in that, The distance between two axially adjacent groove arrays is the same as the width of the groove.
6. The protective cover according to claim 1, characterized in that, The outer peripheral surface is flush with the surface of the transition section.
7. The protective case according to claim 1, wherein The depth of the groove is L, and the wall thickness of the protective sleeve is H, wherein, 1 / 3H ≤ L ≤ 2 / 3H.
8. An aluminum tube assembly, characterized in that, Comprising: An aluminum tube; And the protective sleeve according to any one of claims 1 to 7, the protective sleeve is sleeved on the aluminum tube.
9. The aluminum tube assembly according to claim 8, wherein The protective sleeve is sleeved on the bent part of the aluminum tube.
10. A refrigerator, characterized in that, Comprising the aluminum tube assembly according to claim 8 or 9.