Pipeline built-in throttling device, pipeline assembly and vehicle

Abstract

The utility model relates to the technical field of pipeline built-in throttling devices, and discloses a pipeline built-in throttling device, a pipeline assembly and a vehicle. The pipeline built-in throttling device comprises an outer sheath, the outer sheath is provided with a through hole penetrating in the axial direction, the outer sheath is a flexible part, and the outer sheath is used for being arranged in at least one branch flow channel so as to adjust the flow of the corresponding branch flow channel; and the neck bush is arranged in the through hole in a penetrating mode, the neck bush is a rigid piece, and the neck bush defines an overflowing channel used for fluid circulation. According to the built-in throttling device for the pipeline, the flexible outer sheath and the rigid neck bush are combined, so that the lightweight design of a vehicle is realized, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline built-in throttling device, in particular to a pipeline built-in throttling device, a pipeline assembly and a vehicle. BACKGROUND

[0002] The vehicle thermal management system is from the system integration and the whole vehicle, and the heat of the whole vehicle and the environment is planned and arranged. The heat transfer is controlled and optimized by using comprehensive means, and each part is kept in a better temperature range. The vehicle thermal management system includes a plurality of interconnected circulating loops, and an adjusting structure is usually arranged in the circulating loop to adjust and control the flow and pressure of the fluid.

[0003] The traditional throttling structure usually adopts the combination of rubber tube and metal throttle valve, and is fixed by metal clamp. The density of the rubber tube is large, and the wall thickness is thick, which is not conducive to the lightweight of the whole vehicle. CONTENT OF THE INVENTION

[0004] Therefore, the present application provides a pipeline built-in throttling device, a pipeline assembly and a vehicle. The pipeline built-in throttling device is designed by combining a flexible outer sleeve and a rigid inner sleeve, which replaces the existing throttling structure composed of rubber tube, metal throttle valve and clamp, and is conducive to the lightweight design and cost reduction of the vehicle.

[0005] In order to achieve the above purpose, the technical scheme of the embodiment of the present application is as follows:

[0006] In a first aspect, the embodiment of the present application provides a pipeline built-in throttling device, the pipeline has at least two branch flow channels, and the pipeline built-in throttling device comprises:

[0007] An outer sleeve, the outer sleeve is provided with a through hole penetrating in the axial direction, the outer sleeve is a flexible member, and the outer sleeve is arranged in at least one branch flow channel to adjust the flow of the corresponding branch flow channel;

[0008] An inner sleeve, the inner sleeve is arranged in the through hole, the inner sleeve is a rigid member, and the inner sleeve defines a flow passage for fluid flow.

[0009] By adopting the combination design of flexible outer sleeve and rigid inner sleeve, the self-weight of the pipeline built-in throttling device can be significantly reduced, which helps to achieve the lightweight goal of the whole vehicle. In addition, compared with the traditional throttling structure, the material of the throttle valve is replaced from metal to flexible outer sleeve, and the rigid inner sleeve with required flow limiting specification is added inside the flexible member, so that the inner diameter will not be reduced due to assembly interference fit, thereby realizing that the pipeline built-in throttling device of the present application can be used in any pipeline with soft or hard degree, enhancing the self-adaptability, and improving the performance and reliability of the cooling system.

[0010] In a possible implementation, the outer sheath comprises one of a rubber piece and a silica gel piece.

[0011] The rubber material has good elasticity and flexibility, can adapt to various complex installation environments and deformation requirements. In addition, the rubber material has good resistance to various chemicals and can resist wear and corrosion, thereby prolonging the service life of the pipeline built-in throttling device. The price of the rubber material is also relatively low, easy to process and manufacture, which helps to reduce the production cost and processing efficiency of the pipeline built-in throttling device. In addition, the silica gel material can maintain stable performance in extreme temperature environments and is not prone to hardening. The silica gel material can also be made into high-transparency products and support customization of various colors to meet different aesthetic needs.

[0012] In a possible implementation, the inner liner comprises at least one of a metal piece and a plastic piece.

[0013] The metal inner liner generally has high strength and durability, can withstand high pressure and temperature, and can be applied to harsh working environments. In addition, the metal material has excellent heat conduction performance, which helps to quickly dissipate heat and improve throttling efficiency. Some metal materials (such as stainless steel and titanium alloy) have good corrosion resistance and oxidation resistance, which can maintain stable performance in long-term operation. In addition, the plastic material has a low density, which helps to reduce the weight of the inner liner and meets the requirements of lightweight design. In addition, the plastic material is easy to process and form, and can be made into various complex-shaped inner liners to meet different design requirements. Compared with metal materials, the cost of plastic materials is lower, which helps to improve the cost-effectiveness of the pipeline built-in throttling device.

[0014] In a possible implementation, the outer side wall of the outer sheath is provided with at least one radial inwardly recessed glue-reducing groove.

[0015] By providing the glue-reducing groove, the material usage of the outer sheath can be significantly reduced, thereby achieving the effect of weight reduction, which helps to reduce the overall weight of the pipeline built-in throttling device and improve the lightweight level of the whole vehicle. The design of the glue-reducing groove also reduces the material cost, thereby improving the cost-effectiveness of the pipeline built-in throttling device. In addition, the provision of the glue-reducing groove also reduces the assembly force of the outer sheath, increases the flexibility and adaptability of the outer sheath, and makes it easier to adapt to various complex installation environments and deformation requirements.

[0016] In a possible implementation, the inner liner comprises a first end and a second end along the axial direction of the outer sheath, and at least one of the first end and the second end protrudes from the through hole.

[0017] The rigid design of the inner sleeve can effectively resist the extrusion deformation of the outer sleeve, thereby ensuring the stability of the fluid flow channel and the stability of the fluid flow rate, flow and pressure parameters. The design of the extended end not only enhances the structural strength of the inner sleeve, but also has the effect of supporting the over-flow channel port, which helps to keep the over-flow channel unobstructed and reduces the problem of fluid blockage or leakage caused by port deformation or collapse.

[0018] In a possible implementation, at least one of the first end and the second end is provided with a limiting structure extending radially outward along the outer sleeve, and the limiting structure abuts the outer sleeve in the axial direction.

[0019] The limiting structure is designed to abut the outer sleeve in the axial direction of the outer sleeve, which can effectively limit the movement of the inner sleeve in the axial direction, thereby enhancing the overall stability of the pipeline built-in throttling device. In addition, by increasing the limiting structure, the connection strength between the inner sleeve and the outer sleeve can be further improved, ensuring that the pipeline built-in throttling device can withstand larger pressure fluctuations during operation. In addition, the limiting structure can also be used for throttling valve assembly to ensure that the installation stress surface is uniformly stressed.

[0020] In a possible implementation, at least one end surface of the outer sleeve is formed as a guide slope, and the guide slope extends obliquely relative to the axial direction of the outer sleeve.

[0021] The design of the guide slope makes the pipeline built-in throttling device easier to slide into or push into the pipeline system during installation, simplifying the installation process and reducing the installation difficulty. In addition, through the guidance of the guide slope, the pipeline built-in throttling device can realize more accurate docking with the pipeline system during installation, thereby improving the overall performance and reliability of the pipeline built-in throttling device. The guide slope can also reduce the friction and collision between the pipeline built-in throttling device and the pipeline system during installation, thereby reducing the risk of installation damage.

[0022] In a second aspect, the present application also provides a pipeline assembly, comprising: a pipeline having at least two branch flow channels; and the pipeline built-in throttling device of the first aspect, which is arranged in at least one of the branch flow channels to regulate the flow of the corresponding branch flow channel.

[0023] In a possible implementation, the pipeline comprises a nylon pipe.

[0024] The nylon pipe has good durability, long service life, low installation difficulty and cost, low density, light weight, is convenient to carry and install, and helps to reduce the weight of the entire pipeline system. By selecting appropriate nylon pipe specifications and pipeline built-in throttling device design, fluid balance, pressure stability and energy efficiency improvement in the system can be achieved. Compared with the rubber pipe used in cooperation with the metal throttle valve in the traditional design, the nylon pipe has low density and low cost, which can reduce the weight while reducing the cost. In addition, the arrangement of the nylon pipe can also reduce the types of parts developed between the pipelines, further realizing the weight reduction and cost reduction of the vehicle. Through actual test, it is known that by replacing the traditional rubber pipe with the nylon pipe, the overall weight of the pipeline assembly is reduced by about 3 times, and the cost is reduced by about 2 times.

[0025] In a third aspect, the application also provides a vehicle comprising the pipeline assembly of the second aspect.

[0026] The pipeline built-in throttling device, the pipeline assembly and the vehicle of the utility model, through adopting the combined design of flexible outer sheath and rigid inner liner, can significantly reduce the self-weight of the pipeline built-in throttling device, help to realize the lightweight target of the vehicle, in addition, compared with the traditional throttling structure, the design replaces the material of the throttle valve from metal to flexible outer sheath, and increases the rigid inner liner of required flow limiting specification inside the flexible part, ensures that the inner diameter will not be reduced due to assembly interference fit, so that the pipeline built-in throttling device of the application can be used in pipelines with any degree of softness and hardness, enhances the self-adaptability, and also improves the performance and reliability of the cooling system. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the structure schematic view of the pipeline assembly of the utility model embodiment;

[0028] Figure 2 is the sectional view of the pipeline built-in throttling device of the utility model embodiment.

[0029] REFERENCE SIGNS:

[0030] 10-pipeline; 11-main flow channel; 12-branch flow channel; 20-connection piece; 21-main piece; 22-connection spout;

[0031] 100-pipeline built-in throttling device; 100a-flow passage;

[0032] 110-outer sheath; 110a-through hole; 110b-guiding inclined surface; 111-gum reduction groove;

[0033] 120-inner liner; 120a-first end; 120b-second end; 121-limiting structure;

[0034] 200-pipeline assembly. DETAILED DESCRIPTION

[0035] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will further describe the specific technical solutions of the present application with reference to the drawings in the embodiments of the present application. The following embodiments are used to explain the present application, but not to limit the scope of the present application.

[0036] In the embodiments of the present application, the terms “first”, “second” are only used for descriptive purpose, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with “first”, “second” can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, the meaning of “a plurality of” is two or more.

[0037] In addition, in the embodiments of the present application, the orientation terms such as “upper”, “lower”, “left” and “right” are defined with respect to the orientation of the components shown in the drawings, and it should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation of the components placed in the drawings.

[0038] In the embodiments of the present application, unless otherwise specified and limited, the term “connection” should be understood in a broad sense, for example, “connection” can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through intermediate medium.

[0039] In the embodiments of the present application, the terms “include”, “contain” or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitation, the element defined by the sentence “including a…” does not exclude the existence of other same elements in the process, method, article or device including the element.

[0040] In the embodiments of the present application, the words such as “exemplary” or “for example” are used to represent as an example, illustration or description. Any embodiment or design scheme described as “exemplary” or “for example” in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words such as “exemplary” or “for example” are intended to present the relevant concept in a specific manner.

[0041] A vehicle thermal management system is from the system integration and vehicle angle, overall vehicle heat and environmental heat, using comprehensive means to control and optimize heat transfer, keep each component work in the better temperature range. The vehicle thermal management system includes a plurality of interconnected circulation loops, the circulation loop is usually provided with an adjusting structure to adjust and control the flow and pressure of the fluid. The traditional throttle structure usually adopts the combination of rubber tube and metal throttle valve, and is fixed by metal clamp. However, the density of rubber tube is large, the wall thickness is thick, and the metal quality is large, which is not conducive to the lightweight of the vehicle.

[0042] Especially with the increasing number of new energy vehicles on the market, due to the limitation of battery capacity, the design concept needs to be carried out around lightweight and low cost, and the traditional cooling circuit throttle structure has great disadvantages.

[0043] Therefore, the pipe built-in throttle device, pipe assembly and vehicle provided by the embodiments of the present application can significantly reduce the self weight of the pipe built-in throttle device by adopting the combined design of flexible outer sheath and rigid inner liner, which helps to achieve the lightweight goal of the vehicle. In addition, compared with the traditional throttle structure, the design replaces the metal material of the throttle valve with the flexible outer sheath, and increases the rigid inner liner with the required flow limiting specification inside the flexible part, so that the inner diameter will not be reduced due to assembly interference fit, so that the pipe built-in throttle device of the present application can be used in any pipe with soft or hard degree, which enhances the adaptability and improves the performance and reliability of the cooling system.

[0044] Reference Figure 1 and Figure 2 In a first aspect, the embodiments of the present application provide a pipe built-in throttle device 100, the pipe 10 has at least two branch flow channels 12, in addition, the pipe 10 further includes a main flow channel 11, the main flow channel 11 connects the at least two branch flow channels 12, and the pipe built-in throttle device 100 of the embodiments of the present application is arranged in the branch flow channel 12. For example, the thermal management system of the vehicle usually includes a plurality of circulation loops, the pipes belonging to different circulation loops at the communication place of different circulation loops constitute a pipe 10 with at least two branch flow channels 12, and the pipe built-in throttle device 100 of the embodiments can be arranged in at least one branch flow channel 12 to adjust the flow in the branch flow channel 12.

[0045] The pipe built-in throttle device 100 includes an outer sheath 110 and an inner liner 120.

[0046] The outer sheath 110 is provided with a through hole 110a penetrating in the axial direction, the outer sheath 110 is a flexible part, and the outer sheath 110 is arranged in at least one of the branch flow channels 12 to adjust the flow of the corresponding branch flow channel 12.

[0047] The inner sleeve 120 is arranged in the through hole 110a, and the inner sleeve 120 is a rigid member and defines a flow passage 100a for fluid flow.

[0048] Optionally, the outer sleeve 110 can be made of flexible materials such as high molecular elastomer, special synthetic rubber, etc. These materials have sufficient flexibility to adapt to various installation conditions, and can reduce weight while ensuring strength. When installed in a pipeline 10 with limited diameter or greater hardness, the outer sleeve 110 can deform to a certain extent to ensure smooth installation of the pipeline built-in throttling device 100 and achieve flow regulation in the pipeline 10.

[0049] Optionally, the inner sleeve 120 can be made of rigid materials such as lightweight metal, high-strength plastic, etc. These materials have sufficient strength and corrosion resistance to ensure the stability and reliability of the pipeline built-in throttling device 100 during long-term operation.

[0050] It can be understood that the outer sleeve 110 is provided with a through hole 110a in the axial direction for accommodating the inner sleeve 120. Specifically, the shape and size of the outer sleeve 110 can be customized according to the specific requirements of the branch flow passage 12 during actual assembly to ensure good adaptability and throttling effect.

[0051] As can be seen, the outer sleeve 110 can deform to a certain extent during installation to adapt to changes in the shape and size of different branch flow passages 12 due to its flexible properties.

[0052] Further, the inner sleeve 120 is arranged in the through hole 110a of the outer sleeve 110 and defines a flow passage 100a for fluid flow. Specifically, the shape and size of the flow passage 100a can be designed according to the flow and pressure requirements of the cooling system during actual assembly to ensure that the fluid can pass smoothly and stably.

[0053] As can be seen, the size of the through hole 110a of the outer sleeve 110 limits the flow passage 100a of the inner sleeve 120, thereby achieving precise flow regulation. In addition, the rigid design of the inner sleeve 120 also avoids the possibility of deformation of the through hole 110a due to extrusion of the outer sleeve 110, which in turn affects the possibility of fluid passing through, thereby protecting the outer sleeve 110 and enhancing the throttling effect.

[0054] In addition, in actual operation, for branch flow passages 12 with different flow requirements, the pipeline built-in throttling device 100 with different sizes of flow passage 100a can be replaced to accurately regulate the flow of fluid in the flow passage, ensuring the convenience of adjusting the pipeline built-in throttling device 100 and the adaptability of the flow passage.

[0055] Thus, by adopting the combined design of the flexible outer sheath 110 and the rigid inner liner 120, the self-weight of the pipeline built-in throttling device 100 can be significantly reduced, which helps to realize the lightweight design of the whole vehicle. In addition, compared with the traditional throttling structure, by replacing the throttling valve material from metal to the flexible outer sheath 110 and adding the rigid inner liner 120 inside the flexible member, it is ensured that the inner diameter will not be reduced due to assembly interference fit, so that the pipeline built-in throttling device 100 of the present application can be used in pipelines 10 of various degrees of softness and hardness, enhancing its adaptability and improving the performance and reliability of the cooling system.

[0056] Optionally, the outer diameter and the inner diameter of the outer sheath 110 can be selectively designed according to actual use requirements. Different outer diameters can be adapted to pipelines 10 of different inner diameter ranges, and different inner diameters can be adapted to inner liners 120 of different specifications, improving the adaptability of the pipeline built-in throttling device 100.

[0057] Optionally, the inner liner 120 can be designed in multiple colors, and the colors of inner liners 120 of different specifications are different to achieve quick differentiation of throttling valves of different specifications.

[0058] In some embodiments, the outer sheath 110 includes one of a rubber member and a silicone member. The outer sheath 110 can be selected in material according to actual use requirements, which is not limited herein.

[0059] It can be understood that the rubber material has good elasticity and flexibility, which can adapt to various complex installation environments and deformation requirements. In addition, the rubber material has good resistance to a variety of chemicals and can resist wear and corrosion, thereby prolonging the service life of the pipeline built-in throttling device 100. The price of the rubber material is also relatively cheap, easy to process and manufacture, which helps to reduce the production cost and processing efficiency of the pipeline built-in throttling device 100.

[0060] In addition, the silicone material can maintain stable performance in extreme temperature environments and is not prone to hardening. The silicone material can also be made into high-transparency products, supporting customization of multiple colors to meet different aesthetic needs.

[0061] Optionally, the material of the outer sheath 110 can be ethylene propylene rubber (EPDM), which has high aging resistance, corrosion resistance, electrical properties, elasticity, low density, high filling properties, etc.

[0062] In some embodiments, the inner liner 120 includes at least one of a metal member and a plastic member. The inner liner 120 can be selected in material according to actual use requirements, which is not limited herein.

[0063] It can be understood that the metal inner sleeve 120 generally has high strength and durability, can withstand high pressure and temperature, and can be suitable for harsh working environments. In addition, the thermal conductivity of the metal material is excellent, which helps to quickly dissipate heat and improve throttling efficiency. Some metal materials (such as stainless steel, titanium alloy, etc.) have good corrosion resistance and oxidation resistance, and can maintain stable performance in long-term operation.

[0064] In addition, the density of the plastic material is relatively low, which helps to reduce the weight of the inner sleeve 120 and meet the requirements of lightweight design. In addition, the plastic material is easy to process and form, and can be made into various complex-shaped inner sleeves 120 to meet different design requirements. Compared with metal materials, the cost of plastic materials is lower, which helps to reduce the cost of the pipeline built-in throttling device 100.

[0065] Optionally, the material of the inner sleeve 120 can be PA66+GF30, that is, a high-performance engineering plastic material composed of polyamide 66 (PA66) and 30% glass fiber (Glass Fiber, GF), which has high strength, high rigidity, high temperature resistance, chemical corrosion resistance and anti-aging performance and other performances.

[0066] In some embodiments, in combination Figure 2 The outer side wall of the outer sleeve 110 is provided with a radial inwardly recessed glue reduction groove 111, and the glue reduction groove 111 is at least one. Optionally, the number of glue reduction grooves 111 can be one, two, four, etc.

[0067] Specifically, the number of glue reduction grooves 111 can be designed according to actual needs, and is usually at least one, and can be increased to multiple as needed to improve the weight loss effect. Multiple glue reduction grooves 111 can be evenly distributed on the outer side wall of the outer sleeve 110 to ensure the balance and stability of the structure.

[0068] In actual operation, the position of the glue reduction groove 111 can be reasonably selected according to the installation environment and stress condition of the pipeline built-in throttling device 100. For example, the design of the glue reduction groove 111 needs to avoid the stress concentration area to avoid affecting the strength and durability of the outer sleeve 110.

[0069] Optionally, the shape of the glue reduction groove 111 can be circular, oval, rectangular, etc., depending on the design requirements and processing capacity. It should be noted that the shape should ensure that the glue reduction groove 111 can effectively reduce the amount of material, and also maintain the overall structural strength of the outer sleeve 110.

[0070] Optionally, the size (such as depth, width and length) of the glue reduction groove 111 can be designed according to the thickness of the outer sleeve 110, the material and the performance requirements of the pipeline built-in throttling device 100.

[0071] It can be seen that by opening the glue-reducing groove 111, the material usage of the outer sheath 110 can be significantly reduced, thereby achieving the weight reduction effect, helping to reduce the overall weight of the pipeline built-in throttling device 100, and improving the lightweight level of the whole vehicle. The design of the glue-reducing groove 111 can also reduce the material cost, thereby reducing the cost of the pipeline built-in throttling device 100. In addition, the opening of the glue-reducing groove 111 also reduces the assembly force of the outer sheath 110, increases the flexibility and adaptability of the outer sheath 110, and makes it easier to adapt to various complex installation environments and deformation requirements.

[0072] In some embodiments, in combination Figure 2 The inner sleeve 120 includes a first end 120a and a second end 120b along the axial direction of the outer sheath 110, and at least one of the first end 120a and the second end 120b extends from both ends of the through hole 110a. Specifically, according to actual needs, the inner sleeve 120 can be designed to extend from one end or both ends.

[0073] In this way, the rigid design of the inner sleeve 120 can effectively resist the extrusion deformation of the outer sheath 110, thereby ensuring the stability of the fluid flow passage, ensuring the stability of the flow rate, flow rate and pressure of the fluid, and the design of the extended end not only enhances the structural strength of the inner sleeve 120, but also has the effect of supporting the port of the flow passage 100a, which helps to keep the flow passage 100a unobstructed and reduce the problem of fluid blockage or leakage caused by port deformation or collapse.

[0074] Optionally, the extended end can also be designed with partial structures such as sealing rings, positioning members, assembly members, etc. to meet its own application needs.

[0075] In some embodiments, in combination Figure 2 At least one of the first end 120a and the second end 120b is provided with a limiting structure 121 extending outward along the radial direction of the outer sheath 110, and the limiting structure 121 abuts the outer sheath 110 along the axial direction. Optionally, the limiting structure 121 can be annular, and the annular limiting structure 121 can provide uniform support and limiting effect.

[0076] The limiting structure 121 is designed to abut the outer sheath 110 along the axial direction of the outer sheath 110, and this abutting mode can effectively limit the movement of the inner sleeve 120 in the axial direction, thereby enhancing the overall stability of the pipeline built-in throttling device 100. In addition, by increasing the limiting structure 121, the connection strength between the inner sleeve 120 and the outer sheath 110 can be further improved, ensuring that the pipeline built-in throttling device 100 can withstand larger pressure fluctuations during operation. In addition, the limiting structure 121 can also be used for throttling valve assembly to ensure that the installation stress surface is uniformly stressed.

[0077] In some examples, the limiting structure 121 can be made of the same material as the inner sleeve 120, and alternatively, the limiting structure 121 can be integrally formed with the inner sleeve 120.

[0078] Alternatively, the limiting structure 121 can be made of PA66+GF30, which is a high-performance engineering plastic material composed of polyamide 66 (PA66) and 30% glass fiber (GF). It has high strength, high rigidity, high temperature resistance, chemical corrosion resistance, and anti-aging performance, etc.

[0079] In some embodiments, in combination with Figure 2 The outer sleeve 110 is formed with a guide slope 110b on at least one end surface in the axial direction. The guide slope 110b extends obliquely relative to the axial direction of the outer sleeve 110.

[0080] Alternatively, the guide slope 110b can be designed as a flat surface or a curved surface with slight curvature. The flat guide slope 110b is simple and direct, easy to process and install, while the curved guide slope 110b can provide better guiding effect and greater installation tolerance.

[0081] In actual design, the inclination angle of the guide slope 110b can be reasonably designed according to the installation environment of the pipeline built-in throttling device 100, the size of the pipeline system, and the required docking accuracy. It should be noted that the inclination angle should be selected to ensure that the pipeline built-in throttling device 100 can be smoothly inserted or pushed into the pipeline system, avoiding excessive resistance or damage to the pipeline built-in throttling device 100 during installation.

[0082] The guide slope 110b can be provided on one end or both ends of the outer sleeve 110 in the axial direction. Accordingly, if the pipeline built-in throttling device 100 needs to be inserted from one end of the pipeline system, only one guide slope 110b needs to be provided on one end. If it needs to be inserted from both ends or requires higher docking accuracy, guide slopes 110b can be provided on both ends. The specific design can be selected according to actual use requirements.

[0083] The design of the guide slope 110b makes it easier for the pipeline built-in throttling device 100 to be inserted or pushed into the pipeline system during installation, simplifying the installation process and reducing the installation difficulty. In addition, through the guidance of the guide slope 110b, the pipeline built-in throttling device 100 can achieve more accurate docking with the pipeline system during installation, thereby improving the overall performance and reliability of the pipeline built-in throttling device 100. The guide slope 110b can also reduce the friction and collision between the pipeline built-in throttling device 100 and the pipeline system during installation, thereby reducing the risk of installation damage.

[0084] In a second aspect, in combination with Figure 1 andFigure 2 The embodiment of the present application also provides a pipeline assembly 200, comprising: a pipeline 10, the pipeline 10 having at least two branch flow channels 12; and the pipeline built-in throttling device 100 in any of the above embodiments, the pipeline built-in throttling device 100 being arranged in at least one of the branch flow channels 12 to adjust the flow of the corresponding branch flow channel 12.

[0085] In addition, the pipeline 10 further comprises a main flow channel 11 connected with the branch flow channels 12, and the pipeline built-in throttling device 100 is arranged in the branch flow channels 12. The pipeline 10 has at least two branch flow channels 12, which can be designed and arranged according to actual application requirements. Optionally, the branch flow channels 12 can be parallel to each other, intersected with each other or have other shapes, for example, as shown in Figure 1 One end of each of the two branch flow channels 12 is connected with each other, and the end is connected to a port of the main flow channel 11.

[0086] Optionally, as shown in Figure 1 Two branch flow channels 12 can be provided, and a connecting piece 20 can be arranged at the interface between the branch flow channel 12 and the main flow channel 11. The connecting piece 20 comprises a main piece 21 and three connecting spigots 22. The main piece 21 is hollow, and the three connecting spigots 22 are connected with the main flow channel 11 and the branch flow channel 12, respectively. The pipeline built-in throttling device 100 arranged in the branch flow channel 12 is arranged close to the connecting spigot 22.

[0087] By arranging the pipeline built-in throttling device 100 and adopting the combined design of the flexible outer sheath 110 and the rigid inner liner 120, the self-weight of the pipeline built-in throttling device 100 can be significantly reduced, which helps to achieve the lightweight goal of the whole vehicle. In addition, compared with the traditional throttling structure, the design changes the material of the throttling valve from metal to the flexible outer sheath 110, and increases the rigid inner liner 120 inside the flexible piece to meet the required flow limiting specification, so that the inner diameter will not be reduced due to assembly interference fit, thereby realizing that the pipeline built-in throttling device 100 of the present application can be used in pipelines 10 with any degree of softness and hardness, enhancing its adaptability, and improving the performance and reliability of the cooling system pipeline assembly 200.

[0088] In some embodiments, the pipeline 10 comprises a nylon pipe.

[0089] It can be understood that the nylon pipe has good corrosion resistance to a variety of chemical substances, including acid, alkali, salt, etc., and has good durability. The surface hardness of the nylon pipe is relatively high, which can effectively resist the erosion and wear of the fluid, and has a long service life. The nylon pipe has a certain flexibility and can be bent to adapt to different installation environments, and has low installation difficulty and cost. The density of the nylon pipe is relatively low, and the weight is relatively light, which is convenient for carrying and installation, and helps to reduce the weight of the whole pipeline assembly 200.

[0090] Thus, the nylon tube can be used as the branch flow passage 12 in the pipe assembly 200 to connect the main flow passage 11 and other devices or systems to achieve adaptability in complex installation environments, and correspondingly, the nylon tube can also be used as the main flow passage 11. In addition, the corrosion resistance, wear resistance and lightweight characteristics of the nylon tube help to optimize the performance of the entire pipe assembly 200. By selecting appropriate nylon tube specifications and pipe built-in throttling device 100 designs, fluid balance, pressure stabilization and energy efficiency improvement in the system can be achieved.

[0091] Compared with the rubber tube used in cooperation with the metal throttle valve in the traditional design, the nylon tube has low density and low cost, which can reduce weight while reducing cost. In addition, the arrangement of the nylon tube can also reduce the types of parts developed between the pipes 10, further achieving weight reduction and cost reduction of the entire vehicle. Through actual tests, it is found that by replacing the traditional rubber tube with the nylon tube, the overall weight of the pipe assembly 200 is reduced by about 3 times, and the cost is reduced by about 2 times.

[0092] In a third aspect, the embodiments of the present application also provide a vehicle. In the embodiments, the vehicle can refer to a large car, a small car, a special-purpose car, and the like. Illustratively, according to the power type, the car in the present application can be a pure electric vehicle, a hybrid vehicle, a fuel vehicle, and the like. For a fuel vehicle, the power source can refer to a gasoline engine, a diesel engine, and the like. For an electric vehicle, the power source can refer to an electric motor. For a hybrid vehicle, the power source can refer to an engine or an electric motor. For a vehicle powered in other ways, the power source can refer to a device that generates power. According to the vehicle type, the car in the present application can be a sedan, an off-road vehicle, a multi-purpose vehicle (MPV), or other vehicles.

[0093] The vehicle of the embodiments can include the pipe assembly 200 in the second aspect.

[0094] The vehicle of the embodiments, due to the design of the above-mentioned pipe assembly 200, by adopting the combined design of the flexible outer sheath 110 and the rigid inner liner 120, the self-weight of the pipe built-in throttling device 100 can be significantly reduced, which helps to achieve the lightweight goal of the entire vehicle. In addition, by arranging the pipe 10 as a nylon tube, it is beneficial to achieve fluid balance, pressure stabilization and energy efficiency improvement in the thermal management system of the vehicle.

[0095] The above sequence numbers of the embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments. The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings of the present application, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A pipeline built-in throttling device, characterized in that, The pipeline has at least two branch channels, and the pipeline has a built-in throttling device including: The outer sheath has an axial through hole and is a flexible component. The outer sheath is used to be disposed in at least one of the branch channels to adjust the flow rate of the corresponding branch channel. An inner liner, which passes through the through hole, is a rigid component and defines a flow channel for fluid circulation.

2. The pipeline built-in throttling device according to claim 1, characterized in that, The outer sheath includes either a rubber component or a silicone component.

3. The pipeline built-in throttling device according to claim 1, characterized in that, The inner liner includes at least one of metal and plastic components.

4. The pipeline built-in throttling device according to claim 1, characterized in that, The outer wall of the outer sheath has a radially inwardly recessed adhesive-reducing groove, and there is at least one adhesive-reducing groove.

5. The pipeline built-in throttling device according to claim 1, characterized in that, The inner liner includes a first end and a second end along the axial direction of the outer sheath, at least one of the first end and the second end extending from the through hole.

6. The pipeline built-in throttling device according to claim 5, characterized in that, At least one of the first end and the second end is provided with a limiting structure extending radially outward along the outer sheath, the limiting structure abutting against the outer sheath axially.

7. The pipeline built-in throttling device according to claim 1, characterized in that, A portion of the structure of at least one end face of the outer sheath along the axial direction is formed as a guide slope, the guide slope extending obliquely relative to the axial direction of the outer sheath.

8. A piping assembly, characterized in that, include: Pipeline, the pipeline having at least two branch channels; The pipeline built-in throttling device according to any one of claims 1-7, wherein the pipeline built-in throttling device is disposed in at least one of the branch channels to regulate the flow rate of the corresponding branch channel.

9. The piping assembly according to claim 8, characterized in that, The pipeline includes nylon tubing.

10. A vehicle, characterized in that, Includes the piping assembly as described in claim 8 or 9.

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