Refrigerant line set and air conditioner
Patent Information
- Application Number
- CN202521800271.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-23
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-08-23
AI Technical Summary
然而，这种方式操作步骤繁琐，需要在检测前后反复进行仪表的安装与拆卸
[0014]在本实用新型提供的冷媒管路组件中，包括冷媒管和检测装置。冷媒管上设置有检测安装口。检测装置连接至检测安装口。检测装置用于检测冷媒管内部的真空度及冷媒充注压力。也就是说，检测装置始终连接至检测安装口，无需频繁拆装检测装置。
Smart Images
Figure CN224837984U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioner technology, and in particular to a refrigerant piping assembly and an air conditioner. Background Technology
[0002] In the installation and maintenance of air conditioning systems, especially split-type air conditioners, ensuring the vacuum level of the refrigerant pipeline meets the standards during the vacuuming phase and accurately monitoring the pressure during the refrigerant charging phase are crucial quality control aspects. Currently, operators typically use an external vacuum gauge connected to the refrigerant pipeline service valve or separate vacuum and pressure gauges to perform these two critical tests. However, this method is cumbersome, requiring repeated installation and removal of instruments before and after testing. This frequent disassembly and reassembly not only increases the complexity and time cost of on-site operations but may also cause wear or damage to the seals of the service valve or connection points due to repeated tightening of the joints. Over time, this can lead to refrigerant leaks, posing a potential threat to the long-term reliability and energy efficiency of the system. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model provides a refrigerant piping assembly and an air conditioner.
[0004] In a first aspect, this utility model provides a refrigerant piping assembly, comprising: a refrigerant pipe having a detection mounting port; and a detection device connected to the detection mounting port and used to detect the vacuum level and refrigerant pressure inside the refrigerant pipe.
[0005] According to the present invention, a refrigerant pipeline assembly includes a detection device comprising: a cylinder connected to the detection mounting port; a detection piston slidably mounted inside the cylinder; and a first elastic member disposed between the detection piston and the inner end of the cylinder away from the detection mounting port.
[0006] According to the refrigerant pipeline assembly provided by this utility model, the detection device further includes: a second elastic element, which is disposed between the detection piston and the inner end of the cylinder near the detection mounting port.
[0007] According to the refrigerant pipeline assembly provided by this utility model, the detection device further includes: a vacuum degree scale line disposed on the detection piston; and a vacuum degree observation window opened into the cylinder, and the vacuum degree observation window is correspondingly disposed to the vacuum degree scale line.
[0008] According to the refrigerant piping assembly provided by this utility model, the vacuum level markings include: a vacuum warning section located on the side close to the detection installation port; a vacuum compliance section located on the side away from the detection installation port; and a vacuum critical section located between the vacuum warning section and the vacuum compliance section.
[0009] According to the refrigerant pipeline assembly provided by this utility model, the detection device further includes: a refrigerant pressure scale line, which is disposed on the detection piston and is staggered with the vacuum scale line; and a refrigerant pressure observation window, which is opened into the cylinder and is correspondingly disposed with the refrigerant pressure scale line.
[0010] According to the present invention, a refrigerant piping assembly includes the following: a refrigerant pressure warning section located on the side away from the detection port; a refrigerant pressure compliance section located on the side close to the detection port; and a refrigerant pressure critical section located between the refrigerant pressure warning section and the refrigerant pressure compliance section.
[0011] According to the refrigerant pipeline assembly provided by this utility model, the detection device further includes: a first transparent sealing baffle, which is installed to the vacuum observation window and has a vacuum reading area; and a second transparent sealing baffle, which is installed to the refrigerant pressure observation window and has a refrigerant pressure reading area.
[0012] According to the refrigerant pipeline assembly provided by this utility model, the detection device further includes: a guide ring, which is disposed between the detection piston and the cylinder and is used to provide sliding guidance for the detection piston.
[0013] According to a second aspect of the present invention, an air conditioner is provided, comprising the refrigerant piping assembly as described above.
[0014] The refrigerant piping assembly provided by this utility model includes a refrigerant pipe and a detection device. A detection mounting port is provided on the refrigerant pipe. The detection device is connected to the detection mounting port. The detection device is used to detect the vacuum level and refrigerant charging pressure inside the refrigerant pipe. In other words, the detection device is always connected to the detection mounting port, eliminating the need for frequent disassembly and reassembly.
[0015] As described above, by pre-setting a detection port on the refrigerant pipe and connecting it to a long-term integrated detection device, direct, in-situ monitoring of the internal vacuum level and refrigerant charging pressure of the pipe is achieved. This design completely eliminates the cumbersome operation caused by repeated disassembly and reassembly of external instruments in existing technologies, significantly simplifying the installation and maintenance process. More importantly, it fundamentally avoids potential wear or damage to the sealing surfaces of maintenance valves or connection ports caused by frequent tightening of interfaces, effectively eliminating the risk of refrigerant leakage. This significantly improves the long-term sealing reliability, energy efficiency stability, and maintenance convenience of the air conditioning system.
[0016] Furthermore, the air conditioner provided by this utility model, since it includes the refrigerant piping assembly as described above, also possesses the advantages described above. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a structural schematic diagram of the refrigerant piping assembly provided by this utility model.
[0019] Figure 2 yes Figure 1 A grayscale image.
[0020] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.
[0021] Reference numerals: 100, refrigerant pipe; 200, detection installation port; 300, cylinder; 310, vacuum observation window; 320, refrigerant pressure observation window; 400, detection piston; 410, vacuum warning zone; 420, vacuum critical zone; 430, vacuum compliant zone; 440, refrigerant pressure warning zone; 450, refrigerant pressure critical zone; 460, refrigerant pressure compliant zone; 500, first elastic element; 600, second elastic element; 710, first transparent sealing baffle; 711, vacuum reading area; 720, second transparent sealing baffle; 721, refrigerant pressure reading area; 800, guide ring. Detailed Implementation
[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0023] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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 the embodiments of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.
[0025] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0026] In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples, to make the objectives, technical solutions, and advantages of the present invention clearer. The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0027] The following is combined with Figures 1 to 3 This invention describes a refrigerant piping assembly and an air conditioner provided by an embodiment of the present invention. It should be understood that the following description is merely an illustrative embodiment of the present invention and does not constitute any particular limitation on the present invention.
[0028] An embodiment of the first aspect of this utility model provides a refrigerant piping assembly, such as... Figure 1 and Figure 2 As shown, it includes: a refrigerant pipe 100, on which a detection installation port 200 is provided; and a detection device connected to the detection installation port 200 and used to detect the vacuum degree and refrigerant pressure inside the refrigerant pipe 100.
[0029] The refrigerant piping assembly provided by this utility model includes a refrigerant pipe 100 and a detection device. The refrigerant pipe 100 is provided with a detection mounting port 200. The detection device is connected to the detection mounting port 200. The detection device is used to detect the vacuum level and refrigerant charging pressure inside the refrigerant pipe 100. That is, the detection device is always connected to the detection mounting port 200, eliminating the need for frequent disassembly and reassembly of the detection device.
[0030] As described above, by pre-setting a detection port 200 on the refrigerant pipe 100 and connecting it to a long-term integrated detection device, direct, in-situ monitoring of the internal vacuum level and refrigerant charging pressure of the pipe is achieved. This design completely eliminates the cumbersome operation caused by repeated disassembly and reassembly of external instruments in existing technologies, significantly simplifying the installation and maintenance process. More importantly, it fundamentally avoids potential wear or damage to the sealing surfaces of maintenance valves or connection ports caused by frequent tightening of interfaces, effectively eliminating the risk of refrigerant leakage. This significantly improves the sealing reliability, energy efficiency stability, and maintenance convenience of the air conditioning system during long-term operation.
[0031] In one embodiment of the present invention, the detection device includes: a cylinder 300 connected to a detection mounting port 200; a detection piston 400 slidably mounted inside the cylinder 300; and a first elastic member 500 disposed between the detection piston 400 and the inner end of the cylinder 300 away from the detection mounting port 200.
[0032] Furthermore, in one embodiment of the present invention, the detection device further includes a second elastic member 600, which is disposed between the detection piston 400 and the inner end of the cylinder 300 near the detection mounting port 200.
[0033] For example, such as Figure 1 and Figure 2 As shown, the lower end of the cylinder 300 is threaded to the detection mounting port 200 of the refrigerant pipe 100. A sliding cavity is formed inside the cylinder 300. The upper end of the sliding cavity is closed, and the lower end of the sliding cavity can communicate with the refrigerant pipe 100 through the detection mounting port 200. A detection piston 400 is slidably connected to the sliding cavity. A first elastic element 500, for example, a first spring, is installed between the upper end of the detection piston 400 and the top wall of the sliding cavity. A second elastic element 600, for example, a second spring, is installed between the lower end of the detection piston 400 and the detection mounting port 200. When the refrigerant pipe 100 is evacuated, under the action of negative pressure, the detection piston 400 can overcome the elastic force of the second elastic element 600 and move downwards. The displacement of the detection piston 400 downwards can determine the vacuum level of the refrigerant pipe 100. When refrigerant is charged into refrigerant pipe 100, under the action of refrigerant positive pressure, the detection piston 400 can overcome the elastic force of the first elastic element 500 and move upward. The charging pressure of refrigerant in refrigerant pipe 100 can be determined by the upward displacement of the detection piston 400.
[0034] In one embodiment of the present invention, the detection device further includes: a vacuum degree scale line, which is disposed on the detection piston 400; and a vacuum degree observation window 310, which is opened into the cylinder 300 and is disposed corresponding to the vacuum degree scale line.
[0035] Furthermore, in one embodiment of this utility model, the vacuum degree scale includes: a vacuum warning section 410, which is located on the side close to the detection mounting port 200; a vacuum compliance section 430, which is located on the side away from the detection mounting port 200; and a vacuum critical section 420, which is located between the vacuum warning section 410 and the vacuum compliance section 430.
[0036] In another embodiment of the present invention, the detection device further includes: a refrigerant pressure scale line, which is disposed on the detection piston 400 and is staggered with the vacuum scale line; and a refrigerant pressure observation window 320, which is opened into the cylinder 300 and is correspondingly disposed with the refrigerant pressure scale line.
[0037] In one embodiment of this utility model, the refrigerant pressure markings include: a refrigerant pressure warning section 440, located on the side away from the detection installation port 200; a refrigerant pressure compliant section 460, located on the side close to the detection installation port 200; and a refrigerant pressure critical section 450, located between the refrigerant pressure warning section 440 and the refrigerant pressure compliant section 460.
[0038] Furthermore, in one embodiment of this utility model, the detection device further includes: a first transparent sealing baffle 710, which is installed to the vacuum observation window 310 and has a vacuum reading area 711; and a second transparent sealing baffle 720, which is installed to the refrigerant pressure observation window 320 and has a refrigerant pressure reading area 721.
[0039] Specifically, such as Figures 1 to 3As shown, a vacuum observation window 310 is provided on the right side wall of the cylinder 300, and a refrigerant pressure observation window 320 is provided on the left side wall of the cylinder 300. A first transparent sealing baffle 710 is installed on the vacuum observation window 310, and a second transparent sealing baffle 720 is installed on the refrigerant pressure observation window 320. A vacuum reading area 711 is provided at the middle position of the first transparent baffle, and a refrigerant pressure reading area 721 is provided at the middle position of the second transparent baffle. The right side wall of the detection piston 400 is provided with a vacuum warning section 410, a vacuum critical section 420, and a vacuum compliance section 430 from bottom to top. The left side wall of the detection piston 400 is provided with a refrigerant pressure warning section 440, a refrigerant pressure critical section 450, and a refrigerant pressure compliance section 460 from top to bottom.
[0040] During the vacuuming process, the further the detection piston 400 moves downwards, the better the vacuum level. When the detection piston 400 moves into the vacuum reading area 711 of the first transparent baffle, it indicates that the vacuum level is not up to standard. When the vacuum critical section 420 moves into the vacuum reading area of the first transparent baffle, it indicates that the vacuum level is at the critical point of meeting the standard. When the vacuum meeting section 430 moves into the vacuum reading area of the first transparent baffle, it indicates that the vacuum level is up to standard.
[0041] During the refrigerant charging process, the more the detection piston 400 moves upward, the higher the refrigerant pressure. During the movement of the detection piston 400, when the refrigerant pressure warning section 440 moves into the refrigerant pressure reading area 721 of the second transparent baffle, it indicates that the refrigerant pressure is below standard. When the refrigerant pressure critical section 450 moves into the refrigerant pressure reading area 721 of the second transparent baffle, it indicates that the refrigerant pressure is at the critical point of meeting the standard. When the refrigerant pressure section moves into the refrigerant pressure reading area 721 of the second transparent baffle, it indicates that the refrigerant pressure is within the standard range.
[0042] To facilitate staff reading of vacuum level and refrigerant pressure status, vacuum warning zone 410 and refrigerant pressure warning zone 440 can be set as red zones, vacuum critical zone 420 and refrigerant pressure critical zone 450 as yellow zones, and vacuum compliance zone 430 and refrigerant pressure compliance zone 460 as green zones.
[0043] In addition, to distinguish between the vacuum observation window 310 and the refrigerant pressure observation window 320, markings can be placed on the corresponding observation windows to remind staff.
[0044] In one embodiment of this utility model, such as Figures 1 to 3 As shown, the detection device also includes a guide ring 800, which is disposed between the detection piston 400 and the cylinder 300 and is used to provide sliding guidance for the detection piston 400.
[0045] By setting a guide ring 800, the sliding guidance of the detection piston 400 can be improved, thereby improving the accuracy of vacuum and pressure detection.
[0046] A second aspect of this utility model provides an air conditioner including the refrigerant piping assembly described above.
[0047] Furthermore, the air conditioner provided by this utility model, since it includes the refrigerant piping assembly as described above, also possesses the advantages described above.
[0048] 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. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A refrigerant piping assembly, characterized in that, include: A refrigerant pipe (100) is provided with a detection and installation port (200). The detection device is connected to the detection installation port (200) and is used to detect the vacuum degree and refrigerant pressure inside the refrigerant pipe (100).
2. The refrigerant piping assembly according to claim 1, characterized in that, The detection device includes: A cylindrical body (300) is connected to the detection mounting port (200); A detection piston (400) is slidably mounted inside the cylinder (300); A first elastic element (500) is disposed between the detection piston (400) and the inner end of the cylinder (300) away from the detection mounting port (200).
3. The refrigerant piping assembly according to claim 2, characterized in that, The detection device further includes: The second elastic element (600) is disposed between the detection piston (400) and the inner end of the cylinder (300) near the detection mounting port (200).
4. The refrigerant piping assembly according to claim 3, characterized in that, The detection device further includes: Vacuum degree scale, the vacuum degree scale is disposed on the detection piston (400); A vacuum observation window (310) is provided on the cylinder (300), and the vacuum observation window (310) is set in correspondence with the vacuum scale line.
5. The refrigerant piping assembly according to claim 4, characterized in that, The vacuum level scale includes: Vacuum warning section (410), the vacuum warning section (410) is located on the side close to the detection mounting port (200); Vacuum compliance section (430), the vacuum compliance section (430) is located on the side away from the detection installation port (200); Vacuum critical section (420), which is located between the vacuum warning section (410) and the vacuum compliance section (430).
6. The refrigerant piping assembly according to claim 4, characterized in that, The detection device further includes: The refrigerant pressure scale is set on the detection piston (400), and the refrigerant pressure scale is staggered with the vacuum scale. A refrigerant pressure observation window (320) is provided on the cylinder (300), and the refrigerant pressure observation window (320) is corresponding to the refrigerant pressure scale line.
7. The refrigerant piping assembly according to claim 6, characterized in that, The refrigerant pressure markings include: A refrigerant pressure warning section (440) is located on the side away from the detection installation port (200); The refrigerant pressure compliance section (460) is located on the side close to the detection installation port (200); The refrigerant pressure critical zone (450) is located between the refrigerant pressure warning zone (440) and the refrigerant pressure compliance zone (460).
8. The refrigerant piping assembly according to claim 6, characterized in that, The detection device further includes: A first transparent sealing baffle (710) is installed on the vacuum observation window (310), and a vacuum reading area (711) is provided on the first transparent sealing baffle (710). A second transparent sealing baffle (720) is installed on the refrigerant pressure observation window (320), and a refrigerant pressure reading area (721) is provided on the second transparent sealing baffle (720).
9. The refrigerant piping assembly according to any one of claims 2 to 8, characterized in that, The detection device further includes: A guide ring (800) is disposed between the detection piston (400) and the cylinder (300) and is used to provide sliding guidance for the detection piston (400).
10. An air conditioner, characterized in that, include: The refrigerant piping assembly as described in any one of claims 1 to 9.