Pipe fitting assemblies, intercoolers and vehicles
Patent Information
- Application Number
- CN202522286926.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-29
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-10-29
AI Technical Summary
当连接管与接头进行焊接时，焊环熔化后的流出物若不受控制，极易造成污染
[0015] According to some embodiments of the present invention, the receiving groove is constructed in multiple ways, and the multiple receiving grooves are arranged circumferentially at intervals on the outer peripheral surface of the connecting part.
Smart Images
Figure CN224706482U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline connection technology, and in particular to a pipeline connector assembly, an intercooler, and a vehicle. Background Technology
[0002] In the technical field of pipeline connections, welding is widely used for connecting pipes and fittings. Among these methods, welding rings are a common technique. A welding ring is a ring-shaped welding accessory placed at the interface of two components to be connected. Through the welding process, the welding ring is tightly fused to the components, thus achieving a stable and reliable connection.
[0003] In related technologies, substances produced by the melting of the weld ring (such as brazing flux or residues) often flow out from the joint during or after welding. If the outflow of these substances from the molten weld ring is not controlled when welding connecting pipes and fittings, it can easily cause contamination. The outflow may adhere to critical parts of the fitting, causing jamming when connecting the fitting to the butt joint, affecting the normal assembly and operation of the piping system.
[0004] In addition, the effluent will undergo a series of complex chemical reactions in the high-temperature welding environment, such as decomposition and oxidation, which will cause discoloration on the surface of the weldment and defects such as mottled spots and discoloration, thus damaging the appearance quality of the weldment. Utility Model Content
[0005] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a pipe fitting assembly. According to the pipe fitting assembly of this invention, the guide groove can guide the flow of the molten solder after the welding ring melts, allowing the solder to evenly fill the connection between the fitting and the connecting pipe, thereby improving the reliability and sealing of the welding.
[0006] This utility model also proposes an intercooler having the above-mentioned pipe joint assembly.
[0007] This utility model also proposes a vehicle having the above-mentioned intercooler.
[0008] The pipe fitting assembly according to this utility model includes: a connecting pipe having a medium flow channel formed inside it, a connecting portion formed at one end of the connecting pipe, and a flange extending radially outward on the outer periphery of the connecting pipe, the flange being located axially inside the connecting portion; and a fitting, at least a portion of which is fitted onto the outer periphery of the connecting portion, a butt joint gap being formed between the fitting and the flange, and a guide groove suitable for accommodating a welding ring being formed on the inner wall of the end of the fitting near the flange, the guide groove communicating with the butt joint gap and used to guide and accommodate the solder formed by the melting of the welding ring during the welding process.
[0009] According to the pipe joint assembly of this utility model, the guide groove effectively prevents the solder from flowing outwards disorderly from the butt joint gap by containing and guiding the solder, thus improving the precision and quality of welding. Therefore, during the installation with subsequent mating parts, there will be no jamming due to residues adhering to the surface, improving the smoothness and reliability of the pipe system assembly. Since the solder generated after the welding ring melts is confined inside the joint by the guide groove, the solder cannot spread to the outer surface of the joint and connecting pipe, effectively mitigating the problem of defects such as mottled spots and discoloration on the surface of the weldment caused by oxidation and decomposition of the solder at high temperatures, thus improving product quality.
[0010] According to some embodiments of the present invention, the connector includes: a connecting ring, which is sleeved on the outer periphery of the connecting portion; a protrusion, which protrudes axially from one end of the connecting ring toward the flange, and a mating gap is formed between the protrusion and the flange, the inner peripheral surface of the protrusion is spaced apart from the outer peripheral surface of the connecting portion, and a guide groove is defined between the inner peripheral surface of the protrusion and the end face of the connecting ring, the guide groove surrounding the inner periphery of the protrusion and opening axially toward the flange.
[0011] According to some embodiments of the present invention, the inner circumferential surface of the connecting ring and the end face of the connecting ring are connected by a circular arc surface; and / or, the end face of the connecting ring and the inner circumferential surface of the protrusion are connected by a circular arc surface.
[0012] According to some embodiments of the present invention, the connector further includes: a body portion located at the other end of the connecting ring, the body portion being connected to the connecting pipe, a communicating flow channel being formed inside the body portion, the communicating flow channel being connected to the medium flow channel, and an annular groove suitable for engaging with the opposite part being formed between the body portion and the connecting ring.
[0013] According to some embodiments of the present invention, the inner diameter of the protrusion is d1, the inner diameter of the connecting ring is d2, and the inner diameter of the body is d3, satisfying the condition: d1 > d2 > d3.
[0014] According to some embodiments of the present invention, the outer peripheral surface of the connecting part is formed with a receiving groove that extends axially and is suitable for accommodating solder, and the receiving groove is in communication with the guide groove.
[0015] According to some embodiments of the present invention, the receiving groove is constructed in multiple ways, and the multiple receiving grooves are arranged circumferentially at intervals on the outer peripheral surface of the connecting part.
[0016] According to some embodiments of the present invention, the welding ring includes: a core, the core comprising cesium or a cesium alloy; and an outer layer, the outer layer covering the outer periphery of the core, the outer layer comprising a silicon-aluminum based solder.
[0017] In summary, the pipe connector assembly according to this utility model embodiment achieves positioning and limiting by setting a flange on the outer periphery of the connecting part of the connecting pipe, and opening a guide groove on the inner wall of the connector end to accommodate the welding ring; during welding, after the welding ring melts, the solder fills the butt gap between the protrusion and the flange under the guidance of the guide groove, forming a uniform and dense annular weld, effectively preventing solder overflow and oxidation, and ensuring the sealing, reliability and assembly smoothness of the connection; in addition, multiple circumferentially spaced receiving grooves are provided on the outer periphery of the connecting part to enhance the solder filling effect, and the welding ring adopts a composite structure of a cesium-containing or cesium alloy core and a silicon-aluminum base outer layer, further improving the welding quality and strength.
[0018] The intercooler according to this utility model is briefly described below.
[0019] The intercooler according to this utility model includes the pipe joint assembly described in any of the above embodiments. Because the intercooler according to this utility model includes the pipe joint assembly described in any of the above embodiments, it improves heat exchange efficiency and the uniformity of medium flow, enhances the overall structural stability and pressure resistance, thereby effectively ensuring the stable operation of the intercooler under high temperature and high pressure conditions and extending its service life.
[0020] The vehicle according to this utility model is briefly described below.
[0021] The vehicle according to this utility model includes the intercooler described in any of the above embodiments. Because the vehicle according to this utility model includes the intercooler described in any of the above embodiments, the vehicle according to this utility model improves power transmission efficiency and overall vehicle coordination, enhances the vehicle's adaptability and operational stability under different operating conditions, thereby effectively improving the driving experience and reducing overall energy consumption.
[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0023] 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: Figure 1 This is a schematic diagram of the structure of a pipe connector assembly according to an embodiment of the present invention; Figure 2This is a structural schematic diagram of a pipe connector assembly according to an embodiment of the present invention from another perspective; Figure 3 This is a cross-sectional schematic diagram of a pipe connector assembly according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the connecting pipe and the welding ring installed on the connecting pipe of a pipe joint assembly according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a pipe connector assembly according to an embodiment of the present invention; Figure 6 This is a structural schematic diagram of the connector of a pipe connector assembly according to an embodiment of the present invention from another perspective.
[0024] Figure label: 1. Pipe fitting assembly; 11. Connecting pipe; 111. Medium flow channel; 112. Connecting part; 1121. Receiving groove; 113. Flange; 12. Connector; 121. Guide groove; 122. Connecting ring; 123. Protrusion; 124. Body part; 1241. Flow channel; 125. Annular groove. 13. Docking gap; 14. Weld ring. Detailed Implementation
[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] In related technologies, substances produced by the melting of the weld ring (such as brazing flux or residues) often flow out from the joint during or after welding. If the outflow of these substances from the molten weld ring is not controlled when welding connecting pipes and fittings, it can easily cause contamination. The outflow may adhere to critical parts of the fitting, causing jamming when connecting the fitting to the butt joint, affecting the normal assembly and operation of the piping system.
[0028] In addition, the effluent will undergo a series of complex chemical reactions in the high-temperature welding environment, such as decomposition and oxidation, which will cause discoloration on the surface of the weldment and defects such as mottled spots and discoloration, thus damaging the appearance quality of the weldment.
[0029] The following is for reference. Figures 1-6 The pipe fitting assembly 1 according to an embodiment of the present utility model is described.
[0030] like Figures 1-3 As shown, the pipeline connector assembly 1 according to the present invention includes a connecting pipe 11 and a connector 12. A medium flow channel 111 is formed inside the connecting pipe 11. The medium flow channel 111 is a channel for fluid (such as gas, liquid, etc.) to flow in the pipeline and is used to transport various media to meet the material transmission needs of different systems.
[0031] The end of the connecting pipe 11 forms a connecting portion 112, which is the part of the connecting pipe 11 used to connect with the connector 12. The connecting portion 112 is tightly joined to the connector 12 by welding to ensure the stability of the pipeline connection. A flange 113 extending radially outward is formed on the outer periphery of the connecting pipe 11. The flange 113 is located inside the connecting portion 112 in the axial direction of the connecting pipe 11. The flange 113 plays an important role in positioning and limiting. During the assembly of the connecting pipe 11 and the connector 12, the flange 113 can provide an installation position reference for the connector 12, while limiting the range of movement of the connector 12, thereby enhancing the reliability of the connection.
[0032] It should be noted that in the structure of the connecting pipe 11, the end of the connecting pipe 11 has a port that communicates with the medium flow channel 111, and the connecting part 112 is located at the end for connection with the connector 12. The inner side of the connecting part 112 is the end that is further away from the port relative to the connecting part 112, that is, the flange 113 is located in the axial direction of the connecting pipe 11 closer to the middle of the connecting pipe 11 and farther away from the port than the connecting part 112.
[0033] At least a portion of the connector 12 is fitted around the outer periphery of the connecting portion 112, allowing the connector 12 to fit tightly with the connecting pipe 11. Through reasonable dimensional design and assembly process, a tight and leak-free connection between the connector 12 and the connecting portion 112 can be ensured. A butt gap 13 is formed between the connector 12 and the flange 113. On one hand, the butt gap 13 provides space for the flow and filling of solder during welding; on the other hand, the butt gap 13 provides operating space for heating the welding ring 14 during welding. During welding, heating melts the welding ring 14, and the liquid solder flows along the guide groove 121 and fills the butt gap 13. After filling the butt gap 13, the solder cools and solidifies, forming an annular weld, achieving a sealed connection between the connecting pipe 11 and the connector 12.
[0034] The inner wall of the end of the joint 12 near the flange 113 has a guide groove 121 suitable for accommodating the weld ring 14. The guide groove 121 communicates with the butt joint gap 13 and is used to guide and accommodate the solder formed by the melting of the weld ring 14 during the welding process. The guide groove 121 can accommodate the solder and effectively control the flow direction and distribution of the solder. During the welding process, the weld ring 14 is located in the guide groove 121. When the weld ring 14 is heated and melted, the solder formed by the melting will flow accurately into the butt joint gap 13 under the guidance of the guide groove 121, filling the gap between the joint 12 and the connecting pipe 11, thereby achieving a firm welded connection.
[0035] According to the pipe joint assembly 1 of this utility model, the guide groove 121 effectively prevents the solder from flowing outward disorderly from the butt joint gap 13 by containing and guiding the solder, thereby improving the precision and quality of welding. Therefore, during installation with subsequent connecting parts, there will be no jamming due to residues adhering to the surface, improving the smoothness and reliability of the pipe system assembly. Since the solder generated after the welding ring 14 melts is confined inside the joint 12 by the guide groove 121, the solder cannot spread to the outer surface of the joint 12 and the connecting pipe 11, effectively alleviating the problem of defects such as mottled spots and discoloration on the surface of the weldment caused by oxidation and decomposition of the solder at high temperatures, thus improving product quality.
[0036] Therefore, according to the pipe joint assembly 1 of this utility model, the guide groove 121 can guide the flow of the solder after the welding ring 14 is melted, so that the solder is evenly filled at the connection part between the joint 12 and the connecting pipe 11, thereby improving the reliability and sealing of the welding.
[0037] According to some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, the connector 12 includes a connecting ring 122 and a protrusion 123. The connecting ring 122 is sleeved on the outer periphery of the connecting portion 112, and the connecting ring 122 directly contacts the connecting portion 112, playing a role in positioning and fixing, so that the connector 12 can be accurately installed at the designated position of the connecting pipe 11. Through the cooperation between the connecting ring 122 and the connecting portion 112, the connector 12 can be accurately installed at the designated position of the connecting pipe 11, ensuring the accuracy of the relative position of the connector 12 and the connecting pipe 11, which facilitates subsequent welding operations.
[0038] The protrusion 123 extends axially from one end of the connecting ring 122 toward the flange 113. Axial refers to the same direction as the axis of the connecting part 112. That is, the protrusion 123 extends along the centerline of the connecting pipe 11 from the end of the connecting ring 122 toward the flange 113, making the structure of the connector 12 more reasonable and enabling it to better fit with the connecting pipe 11 and the flange 113.
[0039] A mating gap 13 is formed between the protrusion 123 and the flange 113. The inner circumferential surface of the protrusion 123 is spaced apart from the outer circumferential surface of the connecting part 112, so that the welding ring 14 can be placed between the inner circumferential surface of the protrusion 123 and the outer circumferential surface of the connecting part 112, providing the necessary space for the flow of solder. When the welding ring 14 is heated and melted, the molten solder can flow smoothly to and fill the mating gap 13 to achieve a sealed connection between the joint 12 and the connecting pipe 11.
[0040] A guide groove 121 is defined between the inner circumferential surface of the protrusion 123 and the end face of the connecting ring 122. The guide groove 121 surrounds the inner circumference of the protrusion 123 and opens axially toward the flange 113. The shape of the guide groove 121 matches the welding ring 14, allowing the welding ring 14 to be stably accommodated within the guide groove 121. Before welding, the welding ring 14 can be pre-assembled into the guide groove 121. During welding, the welding ring 14 is heated through the butt joint gap 13 to melt it. The molten solder flows accurately into the butt joint gap 13 under the guidance of the guide groove 121, filling the butt joint gap 13 between the joint 12 and the connecting pipe 11. After cooling, an annular weld is formed, achieving a reliable sealing connection.
[0041] According to some embodiments of this utility model, the inner circumferential surface of the connecting ring 122 and the end face of the connecting ring 122 are connected by a circular arc transition. The inner circumferential surface of the connecting ring 122 is the part that directly contacts and cooperates with the outer circumference of the connecting pipe 11 to achieve positioning and fixation, while the end face is the boundary surface of the connecting ring 122 in the axial direction. The transition from the inner circumferential surface of the connecting ring 122 to the end face of the connecting ring 122 is not an abrupt right-angle turn, but forms a smooth arc surface with a certain radius of curvature, eliminating the stress concentration problem caused by traditional right-angle connections and improving the structural strength of the connector 12 body.
[0042] According to some embodiments of this utility model, the end face of the connecting ring 122 and the inner circumferential surface of the protrusion 123 are connected by a rounded surface transition. The end face of the connecting ring 122 and the inner circumferential surface of the protrusion 123 are not directly connected at right angles or sharp edges, but rather smoothly connected by a rounded surface, naturally linking the end face of the connecting ring 122 and the inner circumferential surface of the protrusion 123. The rounded surface eliminates the stress concentration phenomenon at traditional right-angle connections, significantly improving the structural integrity and fatigue resistance of the joint 12 under internal and external pressure.
[0043] According to some embodiments of this utility model, such as Figure 3 , Figure 5 and Figure 6 As shown, the connector 12 also includes a body portion 124, which is located at the other end of the connecting ring 122 (opposite to one end of the connecting ring 122), helping to rationally allocate the functions and structural space of each part of the connector 12. When the connecting ring 122 is fitted around the outer periphery of the connecting portion 112, the body portion 124 is connected to the connecting pipe 11, realizing the connection between the connector 12 and the connecting pipe 11 for fixing and fluid transmission, ensuring that fluid can smoothly enter or exit the interior of the connector 12 from the connecting pipe 11.
[0044] A connecting channel 1241 is formed within the main body 124, and the connecting channel 1241 is connected to the medium channel 111. The medium channel 111 is a channel for transmitting the medium. The arrangement of the connecting channel 1241 allows the medium to flow smoothly inside the connector 12, ensuring the continuity and stability of the medium transmission. After the medium enters the connecting channel 1241 from the connecting pipe 11, it is then transmitted to other parts through the medium channel 111 connected to the connecting channel 1241; alternatively, the medium flows out from other parts and is transmitted to the medium channel 111, and then enters the connecting pipe 11 through the connecting channel 1241 connected to the medium channel 111.
[0045] An annular groove 125 is formed between the main body 124 and the connecting ring 122, suitable for engaging with the mating component. The mating component is another part used in conjunction with the connector 12. The shape and position of the annular groove 125 are designed to enable it to engage with the mating component. The snap-fit method facilitates installation and disassembly, ensures reliable connection, and guarantees a stable connection between the connector 12 and the mating component, preventing loosening or detachment during use, thereby ensuring the normal operation of the entire system.
[0046] According to some embodiments of this utility model, such as Figure 4 As shown, the inner diameter of the protrusion 123 is d1, the inner diameter of the connecting ring 122 is d2, and the inner diameter of the body 124 is d3, satisfying the condition: d1 > d2 > d3.
[0047] The inner diameter d1 of the protrusion 123 is larger than the inner diameter d2 of the connecting ring 122, causing the inner circumferential surface of the protrusion 123 to be offset outward in the radial direction relative to the inner circumferential surface of the connecting ring 122. This defines a guide groove 121 at the junction of the two, i.e., between the inner circumferential surface of the protrusion 123 and the end face of the connecting ring 122. This ensures that the guide groove 121 has sufficient space to accurately accommodate the solder ring 14 and provides an optimized path for solder flow.
[0048] The inner diameter d2 of the connecting ring 122 is larger than the inner diameter d3 of the body portion 124, causing the inner circumferential surface of the connecting ring 122 to be radially offset outward relative to the inner circumferential surface of the body portion 124. When the connecting ring 122 is fitted onto the outer circumference of the connecting portion 112, the end face of the connecting portion 112 and the end face of the body portion 124 are aligned. At this time, the connecting flow channel 1241 is connected to the medium flow channel 111, which not only ensures a smooth transition of the fluid channel and reduces fluid resistance, but also ensures the alignment accuracy and connection stability between the connector 12 and the connecting pipe 11 through structural positioning.
[0049] According to some embodiments of this utility model, such as Figure 4 As shown, the outer diameter of the protrusion 123 is equal to the outer diameter of the connecting ring 122, and the outer peripheral surface of the protrusion 123 is in contact with the outer peripheral surface of the connecting ring 122 and is constructed as a continuous curved surface. The fact that the outer diameters of the protrusion 123 and the connecting ring 122 are the same indicates that their maximum dimensions in the radial direction are the same.
[0050] The outer peripheral surface of the protrusion 123 and the outer peripheral surface of the connecting ring 122 together form a continuous curved surface. Therefore, the transition from the protrusion 123 to the connecting ring 122 is smooth and without abrupt changes. There are no obvious sharp corners or steps, which makes the overall shape smoother and flatter, improves the aesthetics of the structure, and also allows the stress to be distributed more evenly between the protrusion 123 and the connecting ring 122, thereby enhancing the mechanical strength and long-term reliability of the joint 12.
[0051] According to some embodiments of this utility model, such as Figure 4 As shown, the outer peripheral surface of the connecting part 112 is formed with a receiving groove 1121 that extends axially and is suitable for receiving solder. The receiving groove 1121 is connected to the guide groove 121.
[0052] The receiving groove 1121 extends axially along the outer peripheral surface of the connecting portion 112, providing additional space for the molten solder during the welding process. The receiving groove 1121 is interconnected with the guide groove 121, together forming a channel for solder flow and filling. During the welding process, when the welding ring 14 melts due to heat, the liquid solder not only flows under the guidance of the guide groove 121, but also enters and fills the receiving groove 1121, allowing the solder to be more evenly distributed on the outer peripheral surface of the connecting portion 112, further enhancing the reliability and sealing of the welding.
[0053] By incorporating the receiving groove 1121, the contact area between the solder and the outer circumferential surface of the connector 112 is increased, thereby improving the welding strength. Simultaneously, the receiving groove 1121 helps guide the solder to flow more precisely into the mating gap 13, preventing disordered solder flow and ensuring the controllability and consistency of the welding process. The synergistic effect of the receiving groove 1121 and the guiding groove 121 allows the solder to fully fill the gap between the connector 12 and the connecting pipe 11, forming a uniform and dense weld, effectively preventing media leakage and improving the overall performance and service life of the pipe connector assembly 1.
[0054] According to some embodiments of this utility model, such as Figure 4 As shown, the receiving groove 1121 is constructed in multiple ways, and the multiple receiving grooves 1121 are arranged circumferentially at intervals on the outer peripheral surface of the connecting part 112.
[0055] By setting multiple receiving grooves 1121 and distributing them evenly along the circumferential direction on the outer peripheral surface of the connecting part 112, the contact area and adhesion points between the solder and the outer peripheral surface of the connecting part 112 are increased during welding. During the welding process, after the welding ring 14 melts, the liquid solder, guided by the guide groove 121, flows into the multiple circumferentially distributed receiving grooves 1121 simultaneously. This not only allows the solder to be distributed around the connecting part 112 more quickly and evenly, but also forms multiple welding points anchored in the circumferential direction, enhancing the connection strength and torsional resistance between the connecting pipe 11 and the joint 12, making the final annular weld structure more stable.
[0056] The spaced arrangement of multiple receiving tanks 1121 creates more and more evenly distributed solder flow channels in the circumferential direction. This ensures that during welding heating, heat and liquid solder can be more evenly transferred to the entire mating area through the tanks of multiple receiving tanks 1121. This effectively avoids defects such as incomplete welding or missing welding that may be caused by local accumulation or insufficient filling of solder, thereby improving the uniformity and reliability of the welding seal. This enables the pipe joint assembly 1 to withstand higher system pressure and more stringent operating conditions.
[0057] According to some embodiments of this utility model, the welding ring 14 includes a core and an outer layer. The core contains cesium or a cesium alloy. Cesium or a cesium alloy, as a highly efficient activator, can effectively remove the oxide film on the metal surface during welding, significantly improving the wettability and fluidity of the solder. The outer layer covers the outer periphery of the core and contains a silicon-aluminum based solder. The silicon-aluminum based solder is a welding material with aluminum as the matrix and silicon as the main alloying element. Its performance is usually optimized by adding small amounts of other elements such as copper, zinc, and magnesium. It has good filling performance and metallurgical bonding ability, and can achieve structural connection and sealing.
[0058] During the welding process, when the welding ring 14 is heated to a molten state, the outer layer of silicon-aluminum based solder melts first and begins to flow. At the same time, the cesium or cesium alloy in the core is activated by heat, and its active components can remove oxides between the outer peripheral surface of the connection part 112 and the inner wall of the joint 12, creating clean surface conditions for the subsequent close contact between the molten silicon-aluminum based solder and the base material (connecting pipe 11 and joint 12), ensuring that the solder can spread fully and achieve a strong metallurgical bond.
[0059] By combining the core and outer layer, the pipe connector assembly 1 of this invention achieves higher quality and more reliable welding. The active material in the core effectively overcomes the risk of defects caused by surface oxidation, resulting in more uniform and dense solder filling, further enhancing the sealing performance and mechanical strength of the weld, and improving production efficiency and product qualification rate.
[0060] In summary, the pipe connector assembly 1 according to the present invention achieves positioning and limiting by setting a flange 113 on the outer periphery of the connecting part 112 of the connecting pipe 11, and opening a guide groove 121 on the inner wall of the end of the connector 12 to accommodate the welding ring 14. During welding, after the welding ring 14 melts, the solder fills the butt gap 13 between the protrusion 123 and the flange 113 under the guidance of the guide groove 121, forming a uniform and dense annular weld, effectively preventing solder overflow and oxidation, and ensuring the sealing, reliability and smooth assembly of the connection. In addition, the outer periphery of the connecting part 112 is also provided with multiple circumferentially spaced receiving grooves 1121 to enhance the solder filling effect. The welding ring 14 adopts a composite structure of a cesium-containing or cesium alloy core and a silicon-aluminum base outer layer, further improving the welding quality and strength.
[0061] The intercooler according to this utility model is briefly described below.
[0062] The intercooler according to this utility model includes the pipe joint assembly 1 in any of the above embodiments. Since the intercooler according to this utility model includes the pipe joint assembly 1 in any of the above embodiments, it improves heat exchange efficiency and the uniformity of medium flow, enhances the overall structural stability and pressure resistance, thereby effectively ensuring the stable operation of the intercooler under high temperature and high pressure conditions and extending its service life.
[0063] According to some embodiments of this utility model, the connecting pipe 11 is formed with an inlet or an outlet. The inlet or outlet serves as an interface for connecting the medium flow channel 111 to the external pipeline, so that the fluid (such as coolant) can smoothly enter and exit the medium flow channel 111 formed by the connecting pipe 11, thereby realizing the circulation of the medium in the entire pipeline system and meeting the needs of equipment such as intercoolers for medium transmission and heat exchange under different operating conditions.
[0064] The vehicle according to this utility model is briefly described below.
[0065] The vehicle according to this utility model includes the intercooler in any of the above embodiments. Because the vehicle according to this utility model includes the intercooler in any of the above embodiments, it improves power transmission efficiency and overall vehicle coordination, enhances the vehicle's adaptability and operational stability under different operating conditions, thereby effectively improving the driving experience and reducing overall energy consumption.
[0066] According to some embodiments of this utility model, the vehicle engine includes the intercooler described in any of the above embodiments. The intercooler can effectively reduce the intake air temperature, improve the engine's charging efficiency, thereby enhancing the overall performance and fuel economy of the engine, and providing the vehicle with stronger power support.
[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example 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.
[0068] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A pipe fitting assembly, characterized in that, include: A connecting pipe (11) is provided, a medium flow channel (111) is formed inside the connecting pipe (11), a connecting part (112) is formed at the end of the connecting pipe (11), and a flange (113) extending radially outward is formed on the outer periphery of the connecting pipe (11), the flange (113) being located inside the connecting part (112) in the axial direction of the connecting pipe (11); A connector (12) is fitted around the outer periphery of the connecting part (112), and a butt gap (13) is formed between the connector (12) and the flange (113). A guide groove (121) suitable for accommodating a welding ring (14) is formed on the inner wall of the end of the connector (12) near the flange (113). The guide groove (121) communicates with the butt gap (13) and is used to guide and accommodate the solder formed by the melting of the welding ring (14) during the welding process.
2. The pipe fitting assembly according to claim 1, characterized in that, The connector (12) includes: A connecting ring (122) is sleeved on the outer periphery of the connecting part (112); A protrusion (123) protrudes axially toward the flange (113) from one end of the connecting ring (122). A mating gap (13) is formed between the protrusion (123) and the flange (113). The inner circumferential surface of the protrusion (123) is spaced apart from the outer circumferential surface of the connecting part (112). The guide groove (121) is defined between the inner circumferential surface of the protrusion (123) and the end face of the connecting ring (122). The guide groove (121) surrounds the inner circumference of the protrusion (123) and opens axially toward the flange (113).
3. The pipe fitting assembly according to claim 2, characterized in that, The inner circumferential surface of the connecting ring (122) and the end face of the connecting ring (122) are connected by a circular arc surface transition; And / or, the end face of the connecting ring (122) is connected to the inner circumferential surface of the protrusion (123) by a circular arc transition.
4. The pipe fitting assembly according to claim 2, characterized in that, The connector (12) also includes: The body part (124) is located at the other end of the connecting ring (122). The body part (124) is connected to the connecting pipe (11). A connecting channel (1241) is formed inside the body part (124). The connecting channel (1241) is connected to the medium channel (111). An annular groove (125) suitable for engaging with the opposite part is formed between the body part (124) and the connecting ring (122).
5. The pipe fitting assembly according to claim 4, characterized in that, The inner diameter of the protrusion (123) is d1, the inner diameter of the connecting ring (122) is d2, and the inner diameter of the body part (124) is d3, and the following conditions are met: d1 > d2 > d3.
6. The pipe fitting assembly according to claim 1, characterized in that, The outer peripheral surface of the connecting part (112) is formed with a receiving groove (1121) that extends axially and is suitable for accommodating solder, and the receiving groove (1121) is connected to the guide groove (121).
7. The pipe fitting assembly according to claim 6, characterized in that, The receiving groove (1121) is constructed in multiple ways, and the multiple receiving grooves (1121) are arranged circumferentially at intervals on the outer peripheral surface of the connecting part (112).
8. The pipe fitting assembly according to claim 1, characterized in that, The welding ring (14) includes: The core comprises cesium or a cesium alloy; An outer layer, which covers the outer periphery of the core, comprises a silicon-aluminum based solder.
9. An intercooler, characterized in that, Includes the pipe fitting assembly as described in any one of claims 1-8.
10. A vehicle, characterized in that, Includes the intercooler as described in claim 9.