Durable flexible pipe for thermal management system

Abstract

The utility model discloses a durable flexible pipe for a thermal management system, which comprises a metal corrugated hose, a stainless steel pipe is welded at one end of the metal corrugated hose, a stainless steel protective net is arranged outside the metal corrugated hose, and a manifold, a screwed joint and a support sheet are welded on the outer surface of the stainless steel pipe. Flange joints are welded to the two opposite ends of the metal corrugated hose and the stainless steel pipe, the support pieces and the flange joints are made of 304 stainless steel materials, and passivating treatment is carried out on the surfaces of the support pieces and the flange joints to resist salt mist for more than 1080 hours. According to the utility model, the flexible pipe assembly made of stainless steel and subjected to passivating treatment on the surface is adopted, so that the salt spray resistance is greatly improved, the flexible pipe assembly can adapt to various high-salt severe environments, firstly, the flexible pipe assembly replaces the traditional easily-corroded material, and the durability of the product is fundamentally improved; and secondly, the pipe body is subjected to a passivation process, and a compact oxidation film is formed on the stainless steel surface, so that the corrosion resistance of the product is greatly enhanced, and the product can adapt to more severe working conditions.

Description

Technical Field

[0001] This utility model relates to the field of thermal management system piping technology, and in particular to a durable flexible pipe for thermal management systems. Background Technology

[0002] Thermal management systems play a crucial role in many fields such as automobiles, aerospace, and electronic equipment. Flexible tubes, as an important component of thermal management systems, are responsible for transferring heat media and must have good flexibility to adapt to the complex installation space of equipment and vibration displacement during operation.

[0003] Existing flexible conduits have many shortcomings in terms of durability. On the one hand, under harsh working environments such as high temperature, high pressure, and strong corrosion, the conduit material is prone to aging, corrosion, and cracking, leading to leakage of the heat medium. On the other hand, some flexible conduits cannot be adjusted to a certain angle, making it difficult to adapt to installation requirements in various complex spaces.

[0004] Therefore, we provide a durable flexible tube for a thermal management system. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a durable flexible tube for a thermal management system, which can adapt to harsh working environments and various complex spaces.

[0006] In view of this, the present invention provides a durable flexible tube for a thermal management system, comprising a metal corrugated hose, one end of which is welded to a stainless steel tube, and the metal corrugated hose is provided with a stainless steel protective mesh. A manifold, a threaded joint, and a support plate are welded to the outer surface of the stainless steel tube. Flange joints are welded to both ends of the metal corrugated hose and the stainless steel tube. The metal corrugated hose, the stainless steel tube, the stainless steel protective mesh, the manifold, the threaded joint, the support plate, and the flange joint are all made of 304 stainless steel and have undergone passivation treatment to withstand salt spray for more than 1080 hours.

[0007] Preferably, the corrugated metal hose, the stainless steel pipe, and the flange joint are assembled by automatic mechanical welding, and the stainless steel pipe, the manifold, the threaded joint, and the support plate are all assembled by splicing and welding.

[0008] Preferably, the stainless steel protective net is sleeved on the outside of the metal corrugated hose. The stainless steel protective net serves to protect the metal corrugated hose and increase its pressure resistance. The bending angle of the metal corrugated hose and the stainless steel protective net is less than 40°, achieving an assembly compensation of 0.15L.

[0009] Preferably, there are several manifolds, and the several manifolds are located at different positions on the same vertical plane.

[0010] Preferably, two positioning holes are symmetrically formed through one end of the support piece, and the positioning holes serve as positioning and connection points.

[0011] Preferably, the flange joint has a sealing and limiting groove, and a silicone sealing gasket is provided inside the sealing and limiting groove.

[0012] Preferably, the threaded connector has a threaded structure at the pipe opening, the flange connector is fixedly connected by a clamp, and a protective cap is fitted over the flange connector.

[0013] Compared with the prior art, this utility model provides a durable flexible tube for a thermal management system, which has the following advantages:

[0014] This utility model uses a flexible tube assembly made of stainless steel with a passivated surface, which greatly improves its salt spray resistance and enables it to adapt to various high-salt and harsh environments. First, it replaces traditional easily corroded materials, fundamentally improving the product's durability. Second, the passivation process of the tube body forms a dense oxide film on the stainless steel surface, greatly enhancing the product's corrosion resistance and enabling it to adapt to more severe working conditions.

[0015] 2. This utility model, with its metal corrugated hose and stainless steel protective mesh, has good flexibility and bendability. It can not only compensate for the positional error of the pipeline system by utilizing the elastic variable of the metal corrugated hose within the range of corrugated elastic deformation, thus eliminating assembly stress, but also easily adapt to various torsional and deformed shapes and sizes during installation. It has good fatigue resistance and high adaptability.

[0016] 3. This utility model facilitates positioning before installation and ensures installation accuracy through the positioning holes on the bracket piece.

[0017] 4. This utility model, under the limiting position of the sealing and limiting groove, plays a positioning and limiting role for the silicone sealing gasket, which facilitates the installation of the silicone sealing gasket and avoids the silicone sealing gasket from shifting during the alignment of the flange joint. At the same time, it can be directly clamped and locked with the opposite part during installation, which is convenient for assembly and has strong sealing performance.

[0018] 5. In this utility model, the threaded joint and the pipe opening are all threaded, and the flange joint is connected by a clamp, which makes the device have good installation adaptability and makes the installation and operation simple and controllable.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a durable flexible tube for a thermal management system proposed in this utility model;

[0021] Figure 2 This is a schematic diagram showing the relative positions of the flange and protective cap of a durable flexible tube for a thermal management system proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of the connection structure between a stainless steel tube and a metal corrugated hose in a durable flexible tube for a thermal management system proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the stainless steel tube structure of a durable flexible tube for a thermal management system proposed in this utility model.

[0024] Figure 5 This is a schematic diagram of the stainless steel protective mesh connection structure of a durable flexible tube for a thermal management system proposed in this utility model.

[0025] In the diagram: 1. Corrugated metal hose; 2. Stainless steel pipe; 3. Stainless steel protective mesh; 4. Manifold; 5. Threaded connector; 6. Support plate; 601. Positioning hole; 7. Flange connector; 701. Sealing and limiting groove; 8. Protective cap. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0028] Example: A durable flexible tube for a thermal management system, such as Figure 1 - Figure 5As shown, it includes a corrugated metal hose 1, a stainless steel pipe 2 welded to one end of the corrugated metal hose 1, a stainless steel protective mesh 3 installed on the outside of the corrugated metal hose 1, a manifold 4, a threaded joint 5, and a support plate 6 welded to the outer surface of the stainless steel pipe 2, and flange joints 7 welded to both ends of the corrugated metal hose 1 and the stainless steel pipe 2. The corrugated metal hose 1, the stainless steel pipe 2, the stainless steel protective mesh 3, the manifold 4, the threaded joint 5, the support plate 6, and the flange joint 7 are all made of 304 stainless steel and have been passivated to withstand salt spray for more than 1080 hours.

[0029] When using the flexible conduit, the corrugated metal hose 1 and the stainless steel pipe 2 are connected through the flange joint 7. The manifold 4 and the threaded joint 5 are then connected to the external mechanism to form the flexible conduit assembly. After installation, the flexible conduit assembly, made of 304 stainless steel with a passivated surface treatment, greatly improves its salt spray resistance and can adapt to various high-salt and harsh environments. First, it replaces traditional easily corroded materials, fundamentally improving the product's durability. Second, the passivation process of the pipe body forms a dense oxide film on the stainless steel surface, greatly enhancing the product's corrosion resistance and enabling it to adapt to more severe working conditions.

[0030] like Figure 1 - Figure 5 As shown, the metal corrugated hose 1, stainless steel pipe 2, and flange joint 7 are assembled by automatic mechanical welding. The stainless steel pipe 2, manifold 4, threaded joint 5, and support piece 6 are all assembled by splicing and welding.

[0031] The welding process has several advantages. First, welding enables the components in the flexible tube to form a permanent connection. The welded joint has high strength and can withstand the pressure and vibration during the operation of the thermal management system. It is not easy for the components to loosen or fall off, thus ensuring the stability and reliability of the system. Second, welding can achieve a good sealing effect, effectively preventing the leakage of coolant or other media in the thermal management system, maintaining the normal operation of the system, and avoiding performance degradation or equipment damage caused by leakage.

[0032] like Figure 1 - Figure 5 As shown, the stainless steel protective net 3 is sleeved on the outside of the metal corrugated hose 1. The stainless steel protective net 3 serves to protect the metal corrugated hose 1 and increase the pressure resistance of the metal corrugated hose 1. The bending angle of the metal corrugated hose 1 and the stainless steel protective net 3 is <40°, achieving an assembly compensation of 0.15L, where L is the length of the corrugated hose.

[0033] The metal corrugated hose 1 and the stainless steel protective mesh 3 have good flexibility and bendability. They can not only use the elastic variables of the metal corrugated hose 1 to compensate for the positional error of the pipeline system within the range of corrugated elastic deformation and eliminate assembly stress, but also easily adapt to various torsional and deformed shapes and sizes during installation. They have good fatigue resistance and high adaptability.

[0034] like Figure 1 - Figure 5 As shown, there are several manifolds 4, and these manifolds 4 are located at different positions on the same vertical plane.

[0035] Using manifold 4 allows for flexible adaptation to the spatial layout of the thermal management system, making the piping arrangement more compact and reasonable, effectively utilizing space, and reducing the overall volume and weight of the system.

[0036] like Figure 1 - Figure 5 As shown, two positioning holes 601 are symmetrically opened through one end of the bracket piece 6, and the positioning holes 601 serve as positioning and connection.

[0037] The positioning hole 601 on the bracket piece 6 facilitates positioning before installation and ensures the accuracy of installation.

[0038] like Figure 1 - Figure 5 As shown, the flange joint 7 has a sealing and limiting groove 701, and a silicone sealing gasket is provided inside the sealing and limiting groove 701.

[0039] Under the limiting position of the sealing groove 701, the silicone gasket is positioned and limited, which facilitates the installation of the silicone gasket and prevents the silicone gasket from shifting during the alignment of the flange joint 7.

[0040] like Figure 1 - Figure 5 As shown, the threaded joint 5 has a threaded structure at the pipe opening, the flange joint 7 is fixedly connected by a clamp, and the flange joint 7 is fitted with a protective cap 8.

[0041] All pipe openings of threaded connector 5 are threaded, and installation is completed simply by screwing them in. Flange connector 7 allows for installation and fixation via clamps, giving the equipment good installation adaptability and making installation operation simple and controllable. At the same time, the protective cap 8 prevents impurities from entering the pipe through the pipe openings during transportation, ensuring the cleanliness of the pipe interior.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A durable flexible tube for a thermal management system, comprising a metal bellow hose (1), characterized in that, The metal corrugated hose (1) is welded to a stainless steel pipe (2) at one end. The metal corrugated hose (1) is provided with a stainless steel protective net (3). The outer surface of the stainless steel pipe (2) is welded with a manifold (4), a threaded joint (5), and a support plate (6). The metal corrugated hose (1) and the stainless steel pipe (2) are welded to opposite ends with flange joints (7). The metal corrugated hose (1), the stainless steel pipe (2), the stainless steel protective net (3), the manifold (4), the threaded joint (5), the support plate (6), and the flange joint (7) are all made of 304 stainless steel and are passivated to withstand salt spray for more than 1080 hours.

2. The durable flexible tube for a thermal management system according to claim 1, characterized by, The corrugated metal hose (1), the stainless steel pipe (2), and the flange joint (7) are assembled by automatic mechanical welding. The stainless steel pipe (2), the manifold (4), the threaded joint (5), and the support piece (6) are all assembled by splicing and welding.

3. The durable flexible tube for a thermal management system of claim 1, wherein The stainless steel protective net (3) is sleeved on the outside of the metal corrugated hose (1). The stainless steel protective net (3) serves to protect the metal corrugated hose (1) and increase the pressure resistance of the metal corrugated hose (1). The bending angle of the metal corrugated hose (1) and the stainless steel protective net (3) is <40°, achieving an assembly compensation of 0.15L.

4. The durable flexible tube for a thermal management system according to claim 1, characterized in that, There are several manifolds (4), and several manifolds (4) are located at different positions on the same vertical plane.

5. A durable flexible tube for a thermal management system according to claim 1, characterized in that, Two positioning holes (601) are symmetrically opened through one end of the bracket piece (6), and the positioning holes (601) serve as positioning and connection.

6. A durable flexible tube for a thermal management system according to claim 1, characterized in that, The flange joint (7) is provided with a sealing and limiting groove (701), and a silicone sealing gasket is provided inside the sealing and limiting groove (701).

7. A durable flexible tube for a thermal management system according to claim 1, characterized in that, The threaded joint (5) has a threaded structure at the pipe opening, the flange joint (7) is fixedly connected by a clamp, and the flange joint (7) is covered with a protective cap (8).

Images