A tubing set and manifold apparatus

Abstract

The utility model relates to vehicle air conditioning detection technical field discloses a kind of pipeline assembly and manifold instrument.Pipeline assembly includes first pipeline, second pipeline and throttling component;Second pipeline includes transparent tube section;Throttling component is installed between first pipeline and second pipeline, throttling component is equipped with first guide cavity, first pipeline is communicated with second pipeline via first guide cavity, and one end of first guide cavity is connected to the pipe wall of second pipeline towards second pipeline.By the above structure, to solve the technical problem that the refrigerant in the refrigerant in the prior art can be attached to the inner wall of transparent tube section, so that the pipe wall of transparent tube section is blurred, and it is not convenient for user to observe the inside situation of pipeline.

Description

Technical Field

[0001] This utility model relates to the field of vehicle air conditioning testing technology, and in particular to a pipeline assembly and manifold. Background Technology

[0002] Currently, cars have become commonplace in people's daily lives, serving as vehicles to transport people and making travel more convenient.

[0003] In related technologies, a car may include a vehicle body and an onboard air conditioner. The onboard air conditioner can be installed inside the vehicle body and is used to regulate the temperature inside the vehicle for greater user comfort. A manifold is used to measure data from the onboard air conditioner, such as pressure. Refrigerant can flow within the onboard air conditioner as a heat exchange medium to expel heat from inside the vehicle or bring heat from outside into the vehicle; the user can observe the refrigerant's state as it passes through the manifold.

[0004] Normally, lubricating oil can be mixed into the refrigerant. This lubricating oil lubricates the compressor as it passes through the vehicle's air conditioning unit. Some sections of the manifold's tubing can be made of transparent material to allow users to observe the refrigerant inside. However, when the refrigerant flows through the manifold, the flow rate is slower in the transparent sections. This can cause refrigerant to adhere to the inner wall of the transparent section, making the tubing appear blurry and hindering user observation of the internal piping. Utility Model Content

[0005] The present invention aims to provide a pipeline assembly and manifold to solve the technical problem in the prior art where refrigerant in the refrigerant may adhere to the inner wall of the transparent pipe section, making the pipe wall of the transparent pipe section blurry and making it inconvenient for users to observe the internal condition of the pipeline.

[0006] The technical problem solved by this utility model embodiment is addressed by the following technical solution: One embodiment of this utility model provides a pipeline assembly, including: First pipeline; The second conduit includes a transparent section; A throttling component is installed between the first pipe and the second pipe. The throttling component has a first guide cavity. The first pipe is connected to the second pipe through the first guide cavity. One end of the first guide cavity is connected to the second pipe and faces the pipe wall of the second pipe.

[0007] In some embodiments, there are multiple first guide cavities, and all the first guide cavities are circumferentially distributed around the central axis of the second pipe.

[0008] In some embodiments, the inner diameter of the second pipe is larger than the inner diameter of the first pipe, the central axis of the second pipe is collinear with the central axis of the first pipe, the central axis of the first guide cavity is inclined relative to the central axis of the second pipe, and the central axis of the first guide cavity does not intersect with the central axis of the second pipe.

[0009] In some embodiments, the throttling component further includes a second guide cavity located between the first pipe and the first guide cavity. The first pipe is connected to the second pipe via the second guide cavity and the first guide cavity in sequence. The central axis of the first pipe, the central axis of the second guide cavity, and the central axis of the second pipe are collinear.

[0010] In some embodiments, the diameter of the second guide cavity is greater than the inner diameter of the first pipe, and the diameter of the second guide cavity is smaller than the inner diameter of the second pipe.

[0011] In some embodiments, the first pipe includes a flared portion, one end of the throttling component facing the first pipe is inserted into the flared portion, and the second guide cavity passes through the end of the throttling component facing the first pipe.

[0012] In some embodiments, the throttling component includes a first connecting section and a second connecting section, the first guide cavity is formed in the first connecting section, the second guide cavity is formed in the second connecting section, the first connecting section extends into the second pipe, and the second connecting section is inserted into the flared portion.

[0013] In some embodiments, the first connecting segment includes a mounting sidewall, the plane of which is parallel to the central axis of the second pipe, the mounting sidewall facing the pipe wall of the second pipe, and the first guide cavity penetrating the mounting sidewall.

[0014] In some embodiments, the area of ​​the opening of the first guide cavity at one end connected to the second pipe is smaller than the area of ​​the opening of the first guide cavity at one end connected to the second guide cavity, and the cross-sectional area of ​​the first guide cavity gradually decreases in the direction from the first pipe to the second pipe.

[0015] Another embodiment of the present invention provides a manifold, including a housing and the tubing assembly described in the above embodiment, wherein the tubing assembly is mounted on the housing.

[0016] Compared to existing technologies, the second pipe includes a transparent section, allowing users to observe the refrigerant's condition within the second pipe, such as whether the refrigerant level is sufficient or whether there are impurities. A first guide cavity is connected to one end of the second pipe, facing the pipe wall. After flowing into the second pipe through the first guide cavity, the refrigerant first contacts the pipe wall and then flows along it, increasing the refrigerant velocity at the pipe wall. This high-speed flow of refrigerant carries away contaminants from the transparent section's wall, providing a self-cleaning effect. Users also enjoy greater clarity when observing the refrigerant's condition through the transparent section. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings do not constitute a limitation on scale.

[0018] Figure 1 This is a perspective view of the pipeline assembly in one embodiment of the present invention; Figure 2 yes Figure 1 A cross-sectional view of the piping components in the middle; Figure 3 yes Figure 1 A partial cross-sectional view of the throttling component of the piping assembly; Figure 4 yes Figure 1 A three-dimensional view of the throttling component of the piping assembly; Figure 5 yes Figure 1 A three-dimensional view of the throttling component of the piping assembly from another angle; Figure 6 yes Figure 1 A cross-sectional view of the throttling component of the piping assembly.

[0019] Figure label: 100. Piping assembly; 10. First pipe; 12. Flared end; 20. Second pipe; 30. Throttling component; 32. First connecting section; 322. Mounting sidewall; 3202. Inner groove; 34. Second connecting section; 302. First guide cavity; 304. Second guide cavity; 40. Third pipe. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on the other element, or one or more intermediate elements can exist between them. The terms "upper," "lower," "left," "right," "upper end," "lower end," "top," and "bottom," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0022] The following detailed description, in conjunction with all the accompanying drawings, describes in detail a piping assembly 100, a manifold, and a vehicle air conditioner provided in this application through specific embodiments.

[0023] One embodiment of this utility model discloses a manifold for measuring data from a vehicle's air conditioning system. The vehicle air conditioning system includes a condenser, evaporator, compressor, refrigerant, and other valve components. The manifold, condenser, evaporator, compressor, and other valve components are connected by pipes. The refrigerant serves as a heat exchange medium, filling the condenser, evaporator, compressor, refrigerant, manifold, and other valve components. The compressor liquefies the gaseous refrigerant, and the liquid refrigerant evaporates in the evaporator to absorb heat, thereby lowering the temperature inside the vehicle. The manifold can be positioned between the compressor and the evaporator. The liquid refrigerant needs to pass through the manifold to enter the evaporator, and the user can observe the refrigerant's state through the manifold. The manifold may include a housing and a pipe assembly 100, with the pipe assembly 100 mounted on the housing.

[0024] Please refer to Figure 1 and Figure 2 The pipeline assembly 100 includes a first pipe 10, a second pipe 20, and a throttling component 30; the second pipe 20 includes a transparent pipe section; the throttling component 30 is installed between the first pipe 10 and the second pipe 20, and the throttling component 30 has a first guide cavity 302, through which the first pipe 10 communicates with the second pipe 20, and one end of the first guide cavity 302 is connected to the second pipe 20 and faces the pipe wall of the second pipe 20.

[0025] With the above structure, the second pipe 20 includes a transparent section, allowing users to observe the state of the refrigerant within the second pipe 20, such as whether the refrigerant level is sufficient or whether there are impurities in the refrigerant. The first guide cavity 302 is connected to one end of the second pipe 20, facing the pipe wall. After flowing into the second pipe 20 through the first guide cavity 302, the refrigerant first contacts the pipe wall and then flows along the pipe 20, increasing the refrigerant flow velocity at the pipe wall. This high-speed refrigerant flow can carry away contaminants from the transparent section's wall, achieving a self-cleaning effect. Users also enjoy greater clarity when observing the refrigerant state through the transparent section.

[0026] Specifically, in this embodiment, the first pipe 10 may include a straight copper pipe with a circular cross-section, and the second pipe 20 may include a straight pipe with a circular cross-section made of a transparent material such as glass. The inner diameter of the first pipe 10 may be smaller than the inner diameter of the second pipe 20, and the first pipe 10 and the second pipe 20 may be coaxially arranged. The throttling component 30 may include a block structure made of metal. There may be multiple first guide cavities 302, and each first guide cavity 302 may include a straight cavity with a circular cross-section. The central axis of the first guide cavity 302 may be inclined relative to the central axis of the second pipe 20, so that the end of the first guide cavity 302 connected to the second pipe 20 can face the pipe wall of the second pipe 20. In addition, the central axis of the first guide cavity 302 may not intersect with the central axis of the second pipe 20.

[0027] In other embodiments, the first pipe 10 may also include other structures, such as a polygonal, elliptical, trapezoidal, or irregular cross-section; the second pipe 20 may also include other structures, such as a polygonal, elliptical, trapezoidal, or irregular cross-section; the first pipe 10 may also be made of other metallic materials, such as aluminum, or plastic materials; the second pipe 20 may also be made of other transparent materials, such as transparent plastic; the first pipe 10 and the second pipe 20 may also include arc-shaped pipes; the first pipe 10 may not be coaxially arranged with the second pipe 20; the first guide cavity 302 may also include cavities of other shapes, such as arc-shaped cavities; the number of first guide cavities 302 may be only one; the central axis of the first guide cavity 302 may intersect with the central axis of the second pipe 20.

[0028] Please refer to Figure 2 and Figure 3 In some embodiments, there are multiple first guide cavities 302, and all first guide cavities 302 are circumferentially distributed around the central axis of the second pipe 20.

[0029] With the above structure, there are multiple first guide cavities 302, so that the refrigerant in the first pipe 10 can enter the second pipe 20 more quickly, thereby increasing the flow rate of the refrigerant in the second pipe 20. All the first guide cavities 302 are circumferentially distributed around the central axis of the second pipe 20, so that when the refrigerant enters the second pipe 20, it can be more evenly distributed throughout the second pipe 20, thereby allowing the refrigerant to contact the pipe wall at various points of the second pipe 20 and play a cleaning role, thereby improving the cleaning effect of the refrigerant on the transparent pipe section of the second pipe 20.

[0030] Specifically, in this embodiment, the number of first guide cavities 302 can be six; in other embodiments, the number of first guide cavities 302 can also be other, such as four or eight.

[0031] In some embodiments, the inner diameter of the second pipe 20 is larger than the inner diameter of the first pipe 10, and the central axis of the second pipe 20 is collinear with the central axis of the first pipe 10; the central axis of the first guide cavity 302 is inclined relative to the central axis of the second pipe 20, and the central axis of the first guide cavity 302 does not intersect with the central axis of the second pipe 20.

[0032] With the above structure, the central axis of the first guide cavity 302 is inclined relative to the central axis of the second pipe 20, and the central axis of the first guide cavity 302 does not intersect with the central axis of the second pipe 20, so that the end of the first guide cavity 302 connected to the second pipe 20 can face the pipe wall of the second pipe 20. The first guide cavity 302 is eccentrically divergent in the radial direction of the throttling component 30. After the refrigerant enters the second pipe 20 through the first guide cavity 302, its incident angle forms a certain angle with the inner wall of the second pipe 20, impacting the pipe wall of the second pipe 20, thereby forcing the refrigerant to rotate and flow in the inner wall of the second pipe 20. After combination, it finally presents a spiral flow. The spiral flow of refrigerant can use the liquid flow provided by the pressure difference during refrigerant filling to generate kinetic energy to flush and clean the inner wall of the second pipe 20 without the need for additional rotational energy, thus achieving automatic cleaning.

[0033] In addition, the inner diameter of the second pipe 20 is larger than that of the first pipe 10, so that the pressure of the refrigerant in the second pipe 20 is smaller, that is, the pressure on the transparent section of the second pipe 20 is smaller, so as to avoid the transparent section of the second pipe 20 from being subjected to excessive pressure and breaking.

[0034] Specifically, in this embodiment, the second pipe 20 can be made of glass or other transparent materials; a section of the second pipe 20 facing away from the first pipe 10 can also be connected to the third pipe 40. The third pipe 40 can include a straight copper pipe, the inner diameter of the third pipe 40 can be equal to the inner diameter of the first pipe 10, and the central axis of the third pipe 40 can be collinear with the central axis of the first pipe 10.

[0035] In other embodiments, the second conduit 20 may also include a transparent section made of glass or other transparent material.

[0036] Please refer to the above as well. Figure 2 , Figure 4 and Figure 5 In some embodiments, the throttling component 30 is further provided with a second guide cavity 304, which is located between the first pipe 10 and the first guide cavity 302. The first pipe 10 is connected to the second pipe 20 through the second guide cavity 304 and the first guide cavity 302 in sequence. The central axis of the first pipe 10, the central axis of the second guide cavity 304, and the central axis of the second pipe 20 are collinear.

[0037] With the above structure, the second guide cavity 304 is located between the first pipe 10 and the first guide cavity 302. The second guide cavity 304 can buffer the refrigerant flowing out of the first pipe 10, so that the refrigerant can flow into the first guide cavity 302 more evenly and reduce the resistance encountered by the refrigerant when it flows into the first guide cavity 302.

[0038] Specifically, in this embodiment, the second guide cavity 304 may include a cavity structure similar to a cylinder, and the interface between the second guide cavity 304 and the first guide cavity 302 may be in an elliptical shape, with the opening of the second guide cavity 304 facing away from the first pipe 10 and towards the pipe wall of the first guide cavity 302.

[0039] In other embodiments, the second guide cavity 304 may also include cavities of other shapes, such as frustum-shaped cavities.

[0040] In some embodiments, the diameter of the second guide cavity 304 is greater than the inner diameter of the first pipe 10, and the diameter of the second guide cavity 304 is less than the inner diameter of the second pipe 20.

[0041] With the above structure, the diameter of the second guide cavity 304 is larger than the inner diameter of the first pipe 10. When the refrigerant in the first pipe 10 flows into the second guide cavity 304, it can diffuse, and thus the second guide cavity 304 can play a better buffering role for the refrigerant flowing out of the first pipe 10.

[0042] Specifically, in this embodiment, the side of the first pipe 10 facing the throttling component 30 may be provided with a flared opening, so that when the diameter of the second guide cavity 304 is greater than the inner diameter of the first pipe 10, the throttling component 30 can be inserted into the first pipe 10, and the throttling component 30 and the first pipe 10 may be fixedly connected to each other by welding.

[0043] In other embodiments, the first pipe 10 may also be inserted into the second guide cavity 304, with the outer side of the first pipe 10 connected to the cavity wall of the second guide cavity 304.

[0044] In some embodiments, the first pipe 10 includes a flared portion 12, one end of the throttling component 30 facing the first pipe 10 is inserted into the flared portion 12, and the second guide cavity 304 passes through the end of the throttling component 30 facing the first pipe 10.

[0045] With the above structure, the first pipe 10 includes a flared portion 12, and the end of the throttling component 30 facing the first pipe 10 is inserted into the flared portion 12. When assembling the first pipe 10 and the throttling component 30, it is only necessary to insert the throttling component 30 into the flared portion 12, and then fix the first pipe 10 and the throttling component 30 to each other by welding, so that the assembly process between the first pipe 10 and the throttling component 30 is more convenient.

[0046] Specifically, the flared portion 12 may include a cylindrical tubular structure and a frustum-shaped tubular structure. The end of the throttling component 30 facing the first pipe 10 is inserted into the cylindrical tubular structure of the flared portion 12; the frustum-shaped tubular structure is used to connect to the other part of the first pipe 10.

[0047] In some embodiments, the throttling component 30 includes a first connecting section 32 and a second connecting section 34. A first guide cavity 302 is formed in the first connecting section 32, and a second guide cavity 304 is formed in the second connecting section 34. The first connecting section 32 extends into the second pipe 20, and the second connecting section 34 is inserted into the flared portion 12.

[0048] With the above structure, during the assembly of the pipeline assembly 100, it is only necessary to first insert the first connecting section 32 into the second pipe 20, and then insert the second connecting section 34 into the flared part 12; then weld the first connecting section 32 to the second pipe 20, and simultaneously weld the second connecting section 34 to the flared part 12, thus completing the assembly of the pipeline assembly 100, which simplifies the assembly process of the pipeline assembly 100.

[0049] Specifically, the first connecting section 32 has a conical groove 3202 on the side facing away from the first pipe 10. When the refrigerant passes through the throttling component 30, the temperature of the throttling component 30 is low. When the refrigerant does not pass through the throttling component 30, the temperature of the throttling component 30 will rise. The groove 3202 can buffer the temperature change of the throttling component 30 to prevent the surface of the throttling component 30 from cracking due to excessively rapid temperature change.

[0050] In some embodiments, the first connecting segment 32 includes a mounting sidewall 322, the plane of which the mounting sidewall 322 is located is parallel to the central axis of the second pipe 20, the mounting sidewall 322 faces the pipe wall of the second pipe 20, and the first guide cavity 302 penetrates through the mounting sidewall 322.

[0051] With the above structure, the plane where the mounting sidewall 322 is located is parallel to the central axis of the second pipe 20, and the first guide cavity 302 penetrates the mounting sidewall 322 so that the end of the first guide cavity 302 connected to the second pipe 20 can face the pipe wall of the second pipe 20, and the first guide cavity 302 is also easier to form during the manufacturing process of the throttling component 30.

[0052] Specifically, in this embodiment, the first connecting segment 32 may include a structure similar to a hexagonal prism, the first connecting segment 32 may include six mounting sidewalls 322, and the number of first guide cavities 302 may also be six, with each first guide cavity 302 penetrating a corresponding mounting sidewall 322.

[0053] In other embodiments, the first connecting segment 32 may also include other structures, such as a cylindrical structure, and correspondingly, the mounting sidewall 322 may also be an arc-shaped curved wall; or the first connecting segment 32 may also include a cuboid-like structure.

[0054] Please refer to Figure 6 In some embodiments, the area of ​​the cavity opening of the first guide cavity 302 connected to one end of the second pipe 20 is smaller than the area of ​​the cavity opening of the first guide cavity 302 connected to one end of the second guide cavity 304, and the cross-sectional area of ​​the first guide cavity 302 gradually decreases along the direction from the first pipe 10 to the second pipe 20.

[0055] With the above structure, the area of ​​the cavity opening of the first guide cavity 302 connected to the second pipe 20 is smaller than the area of ​​the cavity opening of the first guide cavity 302 connected to the second guide cavity 304; thus, the first guide cavity 302 has an aggregation effect on the refrigerant, the density of the refrigerant flowing out of the first guide cavity 302 is larger, and the refrigerant has a greater impact force when it flows out of the first guide cavity 302 and contacts the pipe wall of the second pipe 20, so that the refrigerant can achieve a better cleaning effect on the pipe wall of the second pipe 20.

[0056] Specifically, the first guide cavity 302 may include a cavity similar to a cylinder. The opening of the first guide cavity 302 through the mounting sidewall 322 may be circular, and the opening of the first guide cavity 302 connected to the second guide cavity 304 may be elliptical. The diameter of the opening of the first guide cavity 302 through the mounting sidewall 322 is equal to the minor axis of the opening of the first guide cavity 302 connected to the second guide cavity 304, so that the area of ​​the opening of the first guide cavity 302 connected to the second pipe 20 is smaller than the area of ​​the opening of the first guide cavity 302 connected to the second guide cavity 304. Along the direction from the first pipe 10 to the second pipe 20, the cross-sectional area of ​​the first guide cavity 302 gradually decreases. The first guide cavity 302 as a whole may be trumpet-shaped, frustum-shaped, elliptical frustum-shaped, etc.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail; although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A plumbing assembly, comprising: include: First pipeline; The second conduit includes a transparent section; A throttling component is installed between the first pipe and the second pipe. The throttling component has a first guide cavity. The first pipe is connected to the second pipe through the first guide cavity. One end of the first guide cavity is connected to the second pipe and faces the pipe wall of the second pipe.

2. The plumbing assembly of claim 1, wherein, There are multiple first guide cavities, and all of the first guide cavities are circumferentially distributed around the central axis of the second pipe.

3. The plumbing assembly of claim 1, wherein, The inner diameter of the second pipe is larger than that of the first pipe, and the central axis of the second pipe is collinear with the central axis of the first pipe; the central axis of the first guide cavity is inclined relative to the central axis of the second pipe, and the central axis of the first guide cavity does not intersect with the central axis of the second pipe.

4. The plumbing assembly of claim 3, wherein, The throttling component also has a second guide cavity, which is located between the first pipe and the first guide cavity. The first pipe is connected to the second pipe through the second guide cavity and the first guide cavity in sequence. The central axis of the first pipe, the central axis of the second guide cavity and the central axis of the second pipe are collinear.

5. The plumbing assembly of claim 4, wherein, The diameter of the second guide cavity is larger than the inner diameter of the first pipe, and the diameter of the second guide cavity is smaller than the inner diameter of the second pipe.

6. The plumbing assembly of claim 5, wherein, The first pipe includes a flared section, and the end of the throttling component facing the first pipe is inserted into the flared section. The second guide cavity passes through the end of the throttling component facing the first pipe.

7. The plumbing assembly of claim 6, wherein, The throttling component includes a first connecting section and a second connecting section. The first guide cavity is formed in the first connecting section, and the second guide cavity is formed in the second connecting section. The first connecting section extends into the second pipe, and the second connecting section is inserted into the flared portion.

8. The piping assembly according to claim 7, characterized in that, The first connecting section includes a mounting sidewall, the plane of which is parallel to the central axis of the second pipe, the mounting sidewall facing the pipe wall of the second pipe, and the first guide cavity penetrating the mounting sidewall.

9. The plumbing assembly of claim 4, wherein, The area of ​​the opening of the first guide cavity at one end connected to the second pipe is smaller than the area of ​​the opening of the first guide cavity at one end connected to the second guide cavity. In the direction from the first pipe to the second pipe, the cross-sectional area of ​​the first guide cavity gradually decreases.

10. A manifold instrument, characterized by, It includes a housing and a piping assembly as described in any one of claims 1-9, the piping assembly being mounted on the housing.

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