Pipe connecting assembly and air conditioning device
By setting notches at the pipe fitting connections, the problem of difficult solder penetration was solved, achieving high-quality welding results and an efficient assembly process.
Patent Information
- Application Number
- CN202520321590.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-26
AI Technical Summary
In existing technologies, the solder is difficult to penetrate when connecting pipe fittings, resulting in poor welding quality and potential quality risks.
A notch is provided at the limiting part of the second fitting, and the insertion section is fitted with the wall of the connecting hole with a clearance fit. The solder penetrates through the notch to ensure full filling.
It improves welding quality and assembly efficiency, reduces solder outflow, and ensures welding strength.
Smart Images
Figure CN223895419U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of pipe connection, in particular to a pipe connection assembly and an air conditioning device. BACKGROUND
[0002] In the related art, when the first pipe and the second pipe are connected, a connecting hole is formed on the first pipe, and the second pipe is inserted into the connecting hole, and the second pipe is usually provided with a ring structure to limit the cooperation with the overall end face of the connecting hole, which is beneficial to the positioning of the insertion of the second pipe.
[0003] However, when the first pipe and the second pipe are inserted and cooperated and then welded, the setting of the ring structure makes it difficult for the solder to penetrate, resulting in the phenomenon of solder outflow welding, which has great quality risks. CONTENT OF THE UTILITY MODEL
[0004] Therefore, it is necessary to provide a pipe connection assembly which can ensure the positioning and promote the penetration of the solder to ensure the welding quality.
[0005] A pipe connection assembly, comprising a first pipe and a second pipe; the first pipe is provided with a first pipe cavity, and a connecting portion is protruded from the side wall of the first pipe, and the connecting portion is provided with a connecting hole which is communicated with the first pipe cavity; the second pipe is provided with an insertion section and a first limiting portion connected to the insertion section; the insertion section is inserted into the connecting hole and is gap cooperated with the hole wall of the connecting hole, the first limiting portion extends along the circumference of the second pipe and abuts against the end face of the connecting hole, and the first limiting portion is provided with a notch, and the gap between the insertion section and the hole wall of the connecting hole is communicated with the notch; the insertion section is welded with the connecting portion, and the second pipe is provided with a second pipe cavity, and the second pipe cavity is communicated with the first pipe cavity.
[0006] It can be understood that the first limiting portion is provided to facilitate the quick assembly and positioning of the insertion section when inserted into the connecting hole, so as to improve the assembly efficiency. At the same time, the gap cooperation between the insertion section and the hole wall of the connecting hole facilitates the filling of the solder. Further, the setting of the notch facilitates the penetration of the solder from the notch into the gap between the insertion section and the hole wall of the connecting hole, so as to fully penetrate the solder and ensure the welding quality.
[0007] In one of the embodiments, along the radial direction of the second pipe, the outer surface of the first limiting portion is recessed inward to form the notch, and the notch extends along the circumferential direction of the second pipe.
[0008] In one of the embodiments, along the radial direction of the second pipe, the notch is recessed inward from the outer surface of the first limiting portion to the outer wall of the second pipe.
[0009] In one of the embodiments, the number of the gaps is at least two, the at least two gaps are arranged at intervals along the circumference of the second pipe, and the first limiting part is divided into at least two limiting protrusions arranged at intervals by the at least two gaps, and the limiting protrusions abut against the end face of the connecting hole.
[0010] In one of the embodiments, along the circumference of the second pipe, the size of the limiting protrusion is a, and the size of the circumference of the second pipe is S, and 0.2S≤a≤0.8S.
[0011] In one of the embodiments, along the circumference of the second pipe, the size of the gap is b, and the size of the circumference of the second pipe is S, and 0.1S≤b≤0.3S.
[0012] In one of the embodiments, along the radial direction of the insertion section, the size of the first limiting part is h, and the thickness size of the connecting part is B, and 0.4B≤h≤1.1B; and / or, along the axial direction of the insertion section, the size of the first limiting part is c, and the length size of the insertion section is L, and 0.05L≤c≤0.2L.
[0013] In one of the embodiments, at least the surface of the first limiting part outward along the radial direction of the insertion section is arranged as an arc curved surface.
[0014] In one of the embodiments, along the axial direction of the insertion section, the length size of the insertion section is L, and the length size of the connecting part is T, and 0.5T≤L≤1.4T; and / or, the diameter of the connecting hole is d, and the diameter of the first pipe is D, and 0.2D≤d≤0.5D; and / or, the gap size between the insertion section and the hole wall of the connecting hole is s, and 0.05mm≤s≤0.15mm.
[0015] The application also provides an air conditioner device comprising the pipe connecting assembly. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative effort on the basis of these drawings.
[0017] Figure 1 A partial structure schematic view of the pipe connecting assembly provided by the application;
[0018] Figure 2 A sectional view of the pipe connecting assembly provided by the application;
[0019] Figure 3 A front view of the second pipe fitting in the pipe connection assembly provided in the present application;
[0020] Figure 4 A top view of the second pipe fitting in the pipe connection assembly provided in the present application.
[0021] Reference signs: 100, pipe connection assembly; 10, first pipe fitting; 101, first pipe cavity; 11, connecting portion; 111, connecting hole; 20, second pipe fitting; 201, second pipe cavity; 21, insertion section; 22, first limiting portion; 221, notch; 222, limiting protrusion; 23, matching section; 231, second limiting portion. DETAILED DESCRIPTION
[0022] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without using some or all of these specific details. In other instances, well-known process steps have not been described in detail in order to avoid obscuring the present application.
[0023] It should be noted that when an element is referred to as being "fixed to" or "set to" or "disposed to" another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used in the description of the present application are used for the purpose of explanation only and are not intended to indicate the only orientation of the present application.
[0024] In addition, the terms "first", "second", and the like are used only to describe the elements and do not indicate or imply relative importance or a number of the indicated technical features. Thus, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified.
[0025] In the present application, unless specifically defined and limited otherwise, the first feature is "on", "under", "above" or "over" the second feature can be that the first feature is in direct contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, the first feature is "on", "above" and "over" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature is "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.
[0026] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more related listed items.
[0027] Please refer to Figures 1 to 4 , the present application provides a pipe connecting assembly 100, the pipe connecting assembly 100 includes a first pipe 10 and a second pipe 20; the first pipe 10 is provided with a first pipe cavity 101, and a connecting portion 11 is protruded from the side wall of the first pipe 10, and the connecting portion 11 is provided with a connecting hole 111 which is communicated with the first pipe cavity 101; the second pipe 20 is provided with a plug-in section 21, the plug-in section 21 is inserted into the connecting hole 111 and is in clearance fit with the hole wall of the connecting hole 111, so as to facilitate the penetration filling of the solder. The second pipe 20 is provided with a second pipe cavity 201, and the second pipe cavity 201 is communicated with the first pipe cavity 101, so as to realize the fluid communication.
[0028] As Figures 1 to 4 shown, further, the second pipe 20 is also provided with a first limiting portion 22 which is connected with the plug-in section 21, the first limiting portion 22 extends along the circumference of the second pipe 20 and abuts against the end face of the connecting hole 111, so as to form effective limiting and facilitate the quick assembly and positioning when the second pipe 20 is inserted into the first pipe 10.
[0029] As Figure 1 , Figure 3 and Figure 4 shown, further, the first limiting portion 22 is provided with a notch 221, and the gap between the plug-in section 21 and the hole wall of the connecting hole 111 is communicated with the notch 221, the notch 221 is arranged so that the solder can enter into the gap from the notch 221, which facilitates the sufficient penetration of the solder, avoids the outflow of the solder and ensures the welding quality.
[0030] In summary, by setting the notch 221 on the first limiting portion 22, the entrance of the solder is enlarged, the penetration of the solder is reduced, the welding quality is improved on the basis of ensuring the reliability of the limiting, and the welding strength is ensured.
[0031] In an optional embodiment, the outer surface of the first limiting portion 22 is inwardly recessed to form the notch 221 along the radial direction of the second pipe 20, and the notch 221 extends along the circumferential direction of the second pipe 20. The structure of the notch 221 is simple and easy to process.
[0032] In a further embodiment, the notch 221 is inwardly recessed from the outer surface of the first limiting portion 22 to the outer wall of the second pipe 20, that is, the second pipe 20 has an exposed outer wall at the notch 221. The depth of the notch 221 along the radial direction of the second pipe 20 is ensured, so that the gap between the splicing section 21 and the hole wall of the connecting hole 111 can be sufficiently communicated with the notch 221.
[0033] In an optional embodiment, the number of notches 221 is one, so that only one notch 221 needs to be processed during processing, which is simple to operate and can also ensure that the first limiting portion 22 has sufficient area to abut against the connecting portion 11.
[0034] As shown in the drawings, Figure 4 In an optional embodiment, the number of notches 221 is at least two, and the at least two notches 221 are arranged at intervals along the circumferential direction of the second pipe 20. The first limiting portion 22 is divided into at least two spaced limiting protrusions 222 by the at least two notches 221, and the limiting protrusions 222 abut against the end face of the connecting hole 111. In this way, the arrangement of the at least two notches 221 facilitates the increase of the entrance of the solder penetration, promotes the uniform penetration of the solder in the gap between the splicing section 21 and the hole wall of the connecting hole 111, and facilitates the improvement of the welding quality.
[0035] In a specific embodiment, the at least two notches 221 are uniformly distributed at intervals along the circumferential direction of the second pipe 20, so as to facilitate the uniform penetration of the solder along the circumferential direction of the second pipe 20 and improve the welding quality.
[0036] As shown in the drawings, Figure 1 , Figure 2 and Figure 4 In a specific embodiment, at least the surface of the first limiting portion 22 outwardly along the radial direction of the splicing section 21 is arranged as an arc-shaped curved surface, which facilitates the dispersion of stress generated when the first limiting portion 22 abuts against the end face of the connecting hole 111.
[0037] Further, the first limiting portion 22 is arranged as a spherical surface to reduce the contact area between the first limiting portion 22 and the end face of the connecting hole 111, thereby reducing the wear caused by friction.
[0038] Exemplarily, when the notch 221 is provided with one, the first limiting portion 22 is provided as a semi-encircling ring; when the notch 221 is provided with at least two, each limiting protrusion 222 is provided as a circular arc.
[0039] As shown in the figure, in an optional embodiment, along the circumference of the second pipe 20, the size of the limiting protrusion 222 is a, and the size of the circumference of the second pipe 20 is S, 0.1S≤a≤0.4S. In this way, by limiting the size range of the limiting protrusion 222, it is ensured that the limiting protrusion 222 has sufficient abutting area, thereby ensuring the reliability of abutting, and at the same time, the size of the notch 221 is not too small, facilitating the full penetration of the solder. Exemplarily, a=0.1S, 0.2S or 0.4S. Figure 4 As shown in the figure, in an optional embodiment, along the circumference of the second pipe 20, the size of the limiting protrusion 222 is a, and the size of the circumference of the second pipe 20 is S, 0.1S≤a≤0.4S. In this way, by limiting the size range of the limiting protrusion 222, it is ensured that the limiting protrusion 222 has sufficient abutting area, thereby ensuring the reliability of abutting, and at the same time, the size of the notch 221 is not too small, facilitating the full penetration of the solder. Exemplarily, a=0.1S, 0.2S or 0.4S.
[0040] Figure 4 As shown in the figure, in an optional embodiment, along the circumference of the second pipe 20, the size of the limiting protrusion 222 is a, and the size of the circumference of the second pipe 20 is S, 0.1S≤a≤0.4S. In this way, by limiting the size range of the limiting protrusion 222, it is ensured that the limiting protrusion 222 has sufficient abutting area, thereby ensuring the reliability of abutting, and at the same time, the size of the notch 221 is not too small, facilitating the full penetration of the solder. Exemplarily, a=0.1S, 0.2S or 0.4S.
[0041] As shown in the figure, in an optional embodiment, along the circumference of the second pipe 20, the size of the limiting protrusion 222 is a, and the size of the circumference of the second pipe 20 is S, 0.1S≤a≤0.4S. In this way, by limiting the size range of the limiting protrusion 222, it is ensured that the limiting protrusion 222 has sufficient abutting area, thereby ensuring the reliability of abutting, and at the same time, the size of the notch 221 is not too small, facilitating the full penetration of the solder. Exemplarily, a=0.1S, 0.2S or 0.4S. Figure 2 As shown in the figure, in an optional embodiment, along the circumference of the second pipe 20, the size of the limiting protrusion 222 is a, and the size of the circumference of the second pipe 20 is S, 0.1S≤a≤0.4S. In this way, by limiting the size range of the limiting protrusion 222, it is ensured that the limiting protrusion 222 has sufficient abutting area, thereby ensuring the reliability of abutting, and at the same time, the size of the notch 221 is not too small, facilitating the full penetration of the solder. Exemplarily, a=0.1S, 0.2S or 0.4S.
[0042] Figure 3 As shown, in a specific embodiment, along the axial direction of the insertion section 21, the size of the first limiting portion 22 is c, and the length of the insertion section 21 is L, and 0.05L≤c≤0.2L. In this way, along the axial direction of the insertion section 21, the size of the first limiting portion 22 is not too large, which would waste material and increase the weight of the second pipe fitting 20 at the insertion section 21, increasing the probability of collision during assembly. At the same time, it also ensures the structural stability when the first limiting portion 22 abuts against the connecting portion 11, so that the size of the first limiting portion 22 is not too small, which would affect the reliability of the first limiting portion 22 abutting against the end face of the connecting hole 111. For example, c=0.05L, 0.1L or 0.2L.
[0043] As shown in the drawings, Figure 2 In one embodiment, along the axial direction of the insertion section 21, the length of the insertion section 21 is L, and the length of the connecting portion 11 is T, and 0.5T≤L≤1.4T. In this way, it is ensured that the insertion section 21 has sufficient length to be inserted into the connecting portion 11, avoiding the insertion section 21 being too short to cause insufficient connection. At the same time, it can also avoid the size of the insertion section 21 being too long to hinder the flow of fluid in the first lumen 101, reduce the collision between impurities in the fluid and the insertion section 21, and facilitate the protection of the structural strength of the insertion section 21. For example, L=0.5T, 1T or 1.4T.
[0044] In one embodiment, the gap between the insertion section 21 and the hole wall of the connecting hole 111 is s, and 0.05mm≤s≤0.15mm. In this way, the insertion section 21 and the hole wall of the connecting hole 111 have sufficient gap to facilitate the full flow of solder, while also avoiding the gap being too large to cause the solder to be unable to simultaneously connect the insertion section 21 and the connecting portion 11 together. s=0.05mm, 0.1mm or 0.15mm.
[0045] As shown in the drawings, Figure 2 In one embodiment, the diameter of the connecting hole 111 is d, and the diameter of the first pipe fitting 10 is D, and 0.2D≤d≤0.5D. In this way, by setting a reasonable size of the connecting hole 111, the stable connection of the connecting portion 11 and the second pipe fitting 20 is facilitated on the basis of ensuring the structural strength of the first pipe fitting 10. For example, d=0.2D, 0.3D or 0.5D.
[0046] As shown in the drawings, Figure 3 In a specific embodiment, along the extension direction of the second pipe fitting 20, the other end of the second pipe fitting 20 away from the insertion section 21 is provided with a matching section 23, the pipe diameter of the matching section 23 is larger than that of other parts of the second pipe fitting 20, and the matching section 23 can be sleeved on and connected with other pipe fittings. Further, the matching section 23 is provided with a second limiting portion 231, which is used to limit the further insertion of other pipe fittings into the second pipe fitting 20.
[0047] In a specific embodiment, along the axis of the fitting section 23, the second limiting part 231 is tapered from the fitting section 23 towards the direction away from the other pipe fittings, so as to form an inclined limiting surface to abut against the end surface of the other pipe fittings, which is beneficial to disperse the stress generated when abutting and limiting, and improve the fitting strength.
[0048] The application also provides an air conditioning device comprising the pipe connecting assembly 100, which is applied to the pipe connection between various devices in the air conditioning device. Through the provision of the gap 221, the solder can fully penetrate at the connection between the first pipe fitting 10 and the second pipe fitting 20 on the basis of ensuring the structural strength of the first limiting part 22, which is beneficial to improve the connection efficiency of the pipes inside the air conditioning device while ensuring the fitting and positioning and the welding quality.
[0049] The technical features of the above-described embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not contradict, they should be considered as the scope of the present application.
[0050] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, however, it should not be understood as the limitation on the patent application scope. It should be pointed out that, for the ordinary skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.
Claims
1. A pipe connection assembly, characterized in that, include: The first pipe fitting (10) is provided with a first pipe cavity (101). The side wall of the first pipe fitting (10) is provided with a connecting part (11). The connecting part (11) is provided with a connecting hole (111) communicating with the first pipe cavity (101). The second pipe fitting (20) is provided with a plug section (21) and a first limiting part (22) connected to the plug section (21); the plug section (21) is inserted into the connecting hole (111) and is in clearance fit with the hole wall of the connecting hole (111); the first limiting part (22) extends circumferentially along the second pipe fitting (20) and abuts against the end face of the connecting hole (111); the first limiting part (22) is provided with a notch (221); the gap between the plug section (21) and the hole wall of the connecting hole (111) communicates with the notch (221); the plug section (21) is welded to the connecting part (11); the second pipe fitting (20) is provided with a second cavity (201); the second cavity (201) communicates with the first cavity (101).
2. The pipe connection assembly according to claim 1, characterized in that, Along the radial direction of the second pipe fitting (20), the outer surface of the first limiting portion (22) is recessed inward to form the notch (221), which extends circumferentially along the second pipe fitting (20).
3. The pipe connection assembly according to claim 2, characterized in that, Along the radial direction of the second pipe fitting (20), the notch (221) is recessed inward from the outer surface of the first limiting portion (22) to the outer wall of the second pipe fitting (20).
4. The pipe connection assembly according to claim 3, characterized in that, The number of notches (221) is at least two, and the at least two notches (221) are spaced apart along the circumference of the second pipe fitting (20). The first limiting part (22) is divided into at least two spaced limiting protrusions (222) by the at least two notches (221), and the limiting protrusions (222) abut against the end face of the connecting hole (111).
5. The pipe connection assembly according to claim 4, characterized in that, Along the circumference of the second pipe fitting (20), the dimension of the limiting protrusion (222) is a, and the circumferential dimension of the second pipe fitting (20) is S, 0.2S≤a≤0.8S.
6. The pipe connection assembly according to claim 2 or 3, characterized in that, Along the circumference of the second pipe fitting (20), the size of the notch (221) is b, and the circumferential size of the second pipe fitting (20) is S, 0.1S≤b≤0.3S.
7. The pipe connection assembly according to claim 1, characterized in that, Along the radial direction of the insertion segment (21), the dimension of the first limiting portion (22) is h, and the thickness dimension of the connecting portion (11) is B, where 0.4B ≤ h ≤ 1.1B; and / or, Along the axial direction of the plug segment (21), the dimension of the first limiting part (22) is c, and the length dimension of the plug segment (21) is L, where 0.05L≤c≤0.2L.
8. The pipe connection assembly according to claim 1, characterized in that, At least the first limiting part (22) has a radially outward surface along the insertion section (21) configured as an arc-shaped curved surface.
9. The pipe connection assembly according to claim 1, characterized in that, Along the axial direction of the plug segment (21), the length dimension of the plug segment (21) is L, the length dimension of the connecting part (11) is T, 0.5T≤L≤1.4T; and / or, the diameter of the connecting hole (111) is d, the diameter of the first pipe fitting (10) is D, 0.2D≤d≤0.5D; and / or, the gap dimension between the plug segment (21) and the hole wall of the connecting hole (111) is s, 0.05mm≤s≤0.15mm.
10. An air conditioning device, characterized in that, Includes the pipe connection assembly according to any one of claims 1 to 9.