Connector and air conditioner

Abstract

The application provides a connector and an air conditioner. The connector comprises a connecting main body and a pressure maintaining switch. The connecting main body comprises a first connecting channel and a first interface, a second interface, a third interface and a fourth interface which are all in communication with the first connecting channel. The first interface is used for being connected to a valve body of the air conditioner, the second interface is used for being connected to a vacuum gauge, and the fourth interface is used for being connected to a vacuum pump. The connecting main body is an integrated structure. The pressure maintaining switch is connected to the third interface. The connector of the embodiment of the application is beneficial to facilitating carrying and improving assembly efficiency, and improving the risk of leakage in the vacuumizing process.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to a connector and an air conditioner. Background Technology

[0002] After installation, an air conditioner needs to be vacuumed to remove internal air and ensure its cooling and heating performance. In related technologies, the installation process requires multiple connectors to achieve this vacuuming, resulting in low assembly efficiency and inconvenience for transport. Furthermore, leaks may occur due to loose connections between the connectors. Utility Model Content

[0003] In view of this, embodiments of this application provide a connector and an air conditioner that are convenient to carry, improve assembly efficiency, and reduce the risk of leakage during the vacuuming process.

[0004] To achieve the above objectives, this application provides a connector for use in an air conditioner, the connector comprising: The connecting body includes a first connecting channel and a first interface, a second interface, a third interface, and a fourth interface, all of which are connected to the first connecting channel. The first interface is used to connect to the valve body of the air conditioner, the second interface is used to connect to a vacuum gauge, and the fourth interface is used to connect to a vacuum pump. The connecting body is a one-piece molded structure. A pressure-holding switch is connected to the third interface.

[0005] In one embodiment, the connector includes a first connecting nut disposed on the second interface for connecting the second interface to the vacuum gauge.

[0006] In one embodiment, the connector includes a sealing ring sandwiched between the first connecting nut and the vacuum gauge; and / or, The first connecting nut is aligned with the vacuum gauge along a first direction. The first connecting nut is rotatably connected to the second interface. During the rotation of the first connecting nut relative to the second interface, the position of the first connecting nut in the first direction remains unchanged.

[0007] In one embodiment, the fourth interface is connected to the vacuum pump.

[0008] In one embodiment, the connector includes a second connecting nut disposed on the fourth interface for connecting the fourth interface to the vacuum pump.

[0009] In one embodiment, the connector includes a sealing ring sandwiched between the second connecting nut and the vacuum pump; and / or, The second connecting nut is connected to the vacuum pump along the second direction, and the second connecting nut is rotatably connected to the fourth interface. During the rotation of the second connecting nut relative to the fourth interface, the position of the second connecting nut in the second direction remains unchanged.

[0010] In one embodiment, the connecting body includes a first pipe and a second pipe that are interconnected. The two ends of the first pipe form the third interface and the fourth interface, respectively. The end of the second pipe away from the first pipe forms the first interface. The connecting body also includes a connecting branch pipe that is connected to the second pipe. The end of the connecting branch pipe away from the second pipe forms the second interface.

[0011] In one embodiment, the centerline of the first pipeline and the centerline of the second pipeline define a first plane, and the centerline of the connecting branch pipe is perpendicular to the centerline of the second pipeline, and the angle between the branch pipe and the first plane ranges from 0° to 360°. This application embodiment also provides an air conditioner, the air conditioner comprising: Outdoor unit, the outdoor unit including valve body; The connector described above is used to connect to the valve body and the vacuum pump to evacuate the outdoor unit via the vacuum pump.

[0012] In one embodiment, the air conditioner includes a connecting hose, wherein the first interface and the sixth interface are connected via the connecting hose; and / or, The connecting pipe also includes a valve core switch and a seventh interface communicating with the second connecting channel. The valve core switch is disposed on the seventh interface and is used to selectively open or close the valve body of the air conditioner. The operating part of the pressure holding switch is exposed outside the connecting body, and the operating part of the valve core switch is a different color from the operating part of the pressure holding switch.

[0013] This application provides a connector and an air conditioner. By setting the connector's connecting body as an integrally molded structure, the connecting body is provided with a first interface, a second interface, a third interface, and a fourth interface. The first interface is used to connect to the valve body of the air conditioner, the second interface is used to connect to a vacuum gauge, the third interface is used to connect to a pressure holding switch, and the fourth interface is used to connect to a vacuum pump. That is, the connector integrates a second interface for connecting to the vacuum gauge and a third interface for connecting to the pressure holding switch. This helps to reduce the use of connecting parts and improves the leakage caused by the lack of locking between multiple connecting parts. Therefore, the connector of this application embodiment is beneficial to reduce the risk of leakage during the vacuuming process while being easy to carry and improving assembly efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the connection structure between the air conditioner and the vacuum pump according to the first embodiment of this application; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the connector structure according to the first embodiment of this application; Figure 4 This is a schematic diagram of the connector structure according to the second embodiment of this application; Figure 5 This is a schematic diagram of the connector structure according to the third embodiment of this application.

[0015] Explanation of reference numerals in the attached figures 10. Connecting main body; 11. First pipeline; 111. Third interface; 112. Fourth interface; 12. Second pipeline; 121. First interface; 13. Connecting branch pipe; 131. Second interface; 20. Pressure holding switch; 30. First connecting nut; 40. Second connecting nut; 100. Connector; 200. Vacuum gauge; 300. Vacuum pump; 400. Outdoor unit; 410. Valve body; 500. Connecting pipe; 510. Fifth interface; 520. Sixth interface; 530. Seventh interface; 540. Valve core switch; 600. Connecting hose. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of this application, and are therefore only examples, and should not be used to limit the scope of protection of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0017] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0018] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0019] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0020] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0021] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0022] In the description of this application, the orientation or positional relationship of "first direction" is based on the orientation or positional relationship shown in the accompanying drawings. It should be understood that these orientation terms are only for the convenience of describing this application and simplifying the description, and are not intended to 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 application.

[0023] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Taking split-type air conditioners as an example, a split-type air conditioner consists of an indoor unit and an outdoor unit. During installation, the indoor and outdoor units are typically packaged and delivered separately to a designated location, where professionals connect the piping between the indoor and outdoor units on-site. After installation, the air conditioner needs to be vacuumed to remove internal air and ensure its cooling and heating performance. In related technologies, multiple connectors are required to achieve vacuuming during installation. For example, the connectors connecting to the air conditioner, the vacuum gauge, and the pressure switch are different. Therefore, multiple connectors need to be connected before vacuuming, which can lead to missed connectors, low assembly efficiency, and inconvenience in carrying the unit. Furthermore, leaks may occur due to loose connections between connectors. Additionally, the work is inconvenient for professionals operating in confined spaces at heights.

[0025] To address the aforementioned problems, this application provides an air conditioner, please refer to [link to relevant documentation]. Figure 1 The air conditioner includes an outdoor unit 400 and a connector 100 according to any embodiment of the present application. The connector 100 is used to connect to a valve body 410 and a vacuum pump 300 to evacuate the outdoor unit 400 by means of the vacuum pump 300.

[0026] It is understandable that air conditioners can come in various forms. An air conditioner can be the indoor unit of a split air conditioner, an outdoor unit of a split air conditioner, or an integrated air conditioner, etc. There are no specific restrictions on the types of air conditioners that can be used for the packaging components.

[0027] Please see Figures 1 to 5 In another aspect, this application provides a connector 100, which includes a connecting body 10 and a pressure-holding switch 20. The connecting body 10 includes a first connecting channel and a first interface 121, a second interface 131, a third interface 111, and a fourth interface 112, all of which are connected to the first connecting channel. The first interface 121 is used to connect to the valve body 410 of an air conditioner, the second interface 131 is used to connect to a vacuum gauge 200, and the fourth interface 112 is used to connect to a vacuum pump 300. The connecting body 10 is a one-piece molded structure. The pressure-holding switch 20 is connected to the third interface 111.

[0028] The second interface 131 of the connecting body 10 is used to connect to the vacuum gauge 200. That is, the connecting body 10 integrates the second interface 131 for connecting to the vacuum gauge 200.

[0029] For example, the vacuum gauge 200 can be an intelligent vacuum gauge 200 that can directly read the vacuum value. By setting the vacuum gauge 200, the vacuum value in the first connection channel can be detected, which helps to improve the convenience and accuracy of vacuuming.

[0030] The pressure holding switch 20 is connected to the third interface 111, that is, the connecting body 10 integrates the third interface 111 that is connected to the pressure holding switch 20.

[0031] By setting the pressure holding switch 20, after the vacuum is evacuated, the pressure holding switch 20 can be turned off, the pressure can be maintained for a certain period of time, and then the vacuum value in the first connection channel can be detected by the vacuum gauge 200 to confirm whether the vacuum value is within a stable range.

[0032] When the pressure holding switch 20 is in the closed state, it can block the connection between the vacuum pump 300 and the first connection channel. When the pressure holding switch 20 is in the open state, it connects the vacuum pump 300 and the first connection channel.

[0033] Please see Figures 3 to 5 The connecting body 10 is equipped with a first interface 121, a second interface 131, a third interface 111 and a fourth interface 112, which are all connected to the first connecting channel. That is, the connecting body 10 is equipped with multiple interfaces to connect with multiple components, thereby reducing the number of components used.

[0034] There are no restrictions on the molding method of the connecting body 10.

[0035] For example, the connecting body 10 can be formed and then processed by die casting or forging.

[0036] There are no restrictions on the material of the connecting body 10.

[0037] For example, the connecting body 10 can be made of materials such as copper, aluminum, or steel.

[0038] This application provides a connector 100 and an air conditioner. By setting the connecting body 10 of the connector 100 as an integrally formed structure, the connecting body 10 is provided with a first interface 121, a second interface 131, a third interface 111, and a fourth interface 112. The first interface 121 is used to connect to the valve body 410 of the air conditioner, the second interface 131 is used to connect to the vacuum gauge 200, the third interface 111 is used to connect to the pressure holding switch 20, and the fourth interface 112 is used to connect to the vacuum pump 300. That is to say, the connector 100 integrates the second interface 131 connected to the vacuum gauge 200 and the third interface 111 connected to the pressure holding switch 20. In this way, it is beneficial to reduce the use of connecting parts and improve the leakage caused by the lack of locking between multiple connecting parts. Therefore, the connector 100 of this application embodiment is beneficial to reduce the risk of leakage during the vacuuming process while being convenient to carry and improving assembly efficiency.

[0039] In some embodiments, please refer to Figures 1 to 2 The air conditioner also includes a connecting pipe 500, which includes a second connecting channel and a fifth interface 510 and a sixth interface 520 that are both connected to the second connecting channel. The fifth interface 510 is connected to the valve body 410. The first interface 121 is used to connect to the sixth interface 520, and the fourth interface 112 is used to connect to the vacuum pump 300 so that the vacuum pump 300 can evacuate the outdoor unit 400.

[0040] In other words, by setting up a connecting pipe 500, the fifth port 510 of the connecting pipe 500 is connected to the valve body 410, and then the sixth port 520 is connected to the first port 121. That is, the connector 100 can be used to cooperate with the connecting pipe 500, and then the vacuum pump 300 can be used to evacuate the outdoor unit 400.

[0041] For example, in some embodiments, please refer to Figure 1 The connector 100 and the connecting pipe 500 are separate structures. Thus, the connector 100 is connected to the valve body 410 of the outdoor unit 400 via the connecting pipe 500, and to the vacuum pump 300. This means the connector 100 does not need to be connected to the outdoor unit 400, eliminating the need for installers to install it in high and confined spaces. Instead, the connector 100 can be connected to the vacuum pump 300 in a safe area, reducing the risk of leakage during vacuuming and improving the ease of installation.

[0042] For example, please refer to Figure 1 The air conditioner includes a connecting hose 600, through which the first interface 121 and the sixth interface 520 are connected. In other words, the connector 100 and the connecting pipe 500 are connected via the connecting hose 600. This connection structure is simple, reliable, and has low manufacturing costs.

[0043] In other embodiments, the connector 100 and the connecting tube 500 are integrally formed.

[0044] In some embodiments, please refer to Figures 1 to 2 The connecting pipe 500 also includes a valve core switch 540 and a seventh interface 530 communicating with the second connecting channel. The valve core switch 540 is located in the seventh interface 530 and is used to selectively open or close the valve body 410 of the air conditioner.

[0045] In other words, the connecting pipe 500 has at least a seventh interface 530 that is connected to the valve core switch 540.

[0046] By setting the valve core switch 540 at the seventh port 530 of the connecting pipe 500 and connecting the fifth port 510 of the connecting pipe 500 to the valve body 410 of the air conditioner, the valve body 410 of the air conditioner can be selectively opened or closed by the valve core switch 540. For example, opening the valve core switch 540 connects the air conditioner to the second connection channel, and then using the vacuum pump 300 to evacuate the system. After evacuation, the pressure holding switch 20 is closed, and pressure is maintained for a certain period until the vacuum value is within a stable range. Then, the valve core switch 540 is closed to disconnect the air conditioner from the second connection channel, i.e., the two are no longer connected. At this point, the fifth port 510 can be removed from the valve body 410 of the air conditioner. The air conditioner is then started for testing, and the operation is complete.

[0047] This further reduces the number of connectors, thereby further improving the leakage problem caused by the lack of locking between multiple connectors, and further facilitating portability and improving assembly efficiency.

[0048] In some embodiments, please refer to Figures 2 to 5 The operating part of the pressure holding switch 20 is exposed outside the connecting body 10, and the operating part of the valve core switch 540 is a different color from the operating part of the pressure holding switch 20.

[0049] For example, the operating part of the valve core switch 540 can be a nut exposed on the connecting pipe 500, and the valve body 410 of the air conditioner can be opened or closed by operating the nut of the valve core switch 540.

[0050] For example, the operating part of the pressure holding switch 20 may be a nut exposed on the connecting body 10, and the connection or disconnection between the vacuum pump 300 and the first connecting channel can be achieved by operating the nut of the pressure holding switch 20.

[0051] By setting the colors of the operating parts of the valve core switch 540 and the pressure holding switch 20 to be different, it is easier for the operator to distinguish between the valve core switch 540 and the pressure holding switch 20.

[0052] Of course, in other embodiments, the operating part of the valve core switch 540 and the operating part of the pressure holding switch 20 can be distinguished by markings to differentiate the valve core switch 540 and the pressure holding switch 20.

[0053] The specific connection method between the second interface 131 and the vacuum gauge 200 is not limited here.

[0054] In some embodiments, please refer to Figures 3 to 5 The connector 100 includes a first connecting nut 30, which is disposed on the second interface 131 for connecting the second interface 131 and the vacuum gauge 200.

[0055] By setting the first connecting nut 30 to connect the second interface 131 and the vacuum gauge 200, the convenience and reliability of the connection between the connector 100 and the vacuum gauge 200 are improved.

[0056] In other embodiments, the second interface 131 can be directly connected to the vacuum gauge 200, for example, by a threaded connection.

[0057] In some embodiments, please refer to Figures 3 to 5 The connector 100 includes a second connecting nut 40, which is disposed on the fourth interface 112 for connecting the fourth interface 112 to the vacuum pump 300.

[0058] By setting a second connecting nut 40 to connect the fourth interface 112 to the vacuum pump 300, the convenience and reliability of the connection between the fourth interface 112 and the vacuum pump 300 are improved.

[0059] In other embodiments, the fourth interface 112 may be directly connected to the vacuum pump 300, for example, via a threaded connection.

[0060] In some embodiments, the air conditioner includes a sealing ring sandwiched between the valve core switch 540 and the seventh interface 530.

[0061] For example, the valve core switch 540 has a built-in sealing ring. After the valve core switch 540 is assembled to the seventh interface 530 of the connecting body 10, the sealing ring is sandwiched between the valve core switch 540 and the seventh interface 530.

[0062] By setting a sealing ring and clamping it between the valve core switch 540 and the seventh interface 530, the gap between the valve core switch 540 and the seventh interface 530 is sealed, thus improving the problem of connection leakage.

[0063] In some embodiments, the sealing ring is sandwiched between the first connecting nut 30 and the valve body 410. For example, the first connecting nut 30 has a built-in sealing ring. After the first connecting nut 30 is assembled to the valve body 410, the sealing ring is sandwiched between the first connecting nut 30 and the valve body 410.

[0064] By setting a sealing ring and clamping it between the first connecting nut 30 and the valve body 410, the gap between the first connecting nut 30 and the valve body 410 is sealed, thereby improving the problem of connection leakage.

[0065] In some embodiments, the connector 100 includes a sealing ring sandwiched between the first connecting nut 30 and the vacuum gauge 200.

[0066] For example, the first connecting nut 30 has a built-in sealing ring. After the vacuum gauge 200 is assembled to the first connecting nut 30, the sealing ring is sandwiched between the first connecting nut 30 and the vacuum gauge 200.

[0067] By setting a sealing ring and clamping it between the first connecting nut 30 and the vacuum gauge 200, the gap between the first connecting nut 30 and the vacuum gauge 200 is sealed, thus improving the problem of connection leakage.

[0068] In some embodiments, the connector 100 includes a sealing ring sandwiched between the second connecting nut 40 and the vacuum pump 300.

[0069] For example, the second connecting nut 40 has a built-in sealing ring, which is sandwiched between the second connecting nut 40 and the vacuum pump 300 after the connector 100 is assembled to the vacuum pump 300.

[0070] By setting a sealing ring and clamping it between the second connecting nut 40 and the vacuum pump 300, the gap between the second connecting nut 40 and the vacuum pump 300 is sealed, thus improving the problem of connection leakage.

[0071] In some embodiments, please refer to Figures 3 to 5 The first connecting nut 30 is connected to the vacuum gauge 200 along the first direction. The first connecting nut 30 is rotatably connected to the second interface 131. During the rotation of the first connecting nut 30 relative to the second interface 131, the position of the first connecting nut 30 in the first direction remains unchanged.

[0072] In other words, the first connecting nut 30 is rotatably connected to the second interface 131, and during the relative rotation of the first connecting nut 30 and the second interface 131, the first connecting nut 30 and the second interface 131 do not produce relative displacement in the first direction.

[0073] For example, the first connecting nut 30 is provided with an internal thread, and the vacuum gauge 200 is provided with an external thread, so that the first connecting nut 30 is threadedly connected to the vacuum gauge 200.

[0074] During the rotation of the first connecting nut 30 relative to the second interface 131, the position of the first connecting nut 30 in the first direction remains unchanged. Thus, by rotating the first connecting nut 30 to lock it, the first connecting nut 30 drives the connecting body 10 to move closer to the vacuum gauge 200 in the first direction, thereby achieving the locking between the connector 100 and the vacuum gauge 200. During the locking process, it is not necessary to rotate the connecting body 10 and the vacuum gauge 200, which helps to reduce the operating space, facilitates the adjustment of the angle and position of the vacuum gauge 200 relative to the connecting body 10, and further facilitates operations such as reading values ​​from the vacuum gauge 200.

[0075] In some embodiments, please refer to Figures 3 to 5 The second connecting nut 40 is connected to the vacuum pump 300 along the second direction, and the second connecting nut 40 is rotatably connected to the fourth interface 112. During the rotation of the second connecting nut 40 relative to the fourth interface 112, the position of the second connecting nut 40 in the second direction remains unchanged.

[0076] For example, the first direction and the second direction can be parallel or intersecting, such as perpendicular.

[0077] In other words, the second connecting nut 40 is rotatably connected to the fourth interface 112, and during the relative rotation of the second connecting nut 40 and the fourth interface 112, the second connecting nut 40 and the fourth interface 112 do not produce relative displacement in the second direction.

[0078] For example, the second connecting nut 40 is provided with an internal thread, and the vacuum pump 300 is provided with an external thread, so that the second connecting nut 40 is threadedly connected to the vacuum pump 300.

[0079] During the rotation of the second connecting nut 40 relative to the fourth interface 112, the position of the second connecting nut 40 in the second direction remains unchanged. Thus, by rotating the second connecting nut 40 to lock it, the second connecting nut 40 drives the connecting body 10 to move in the second direction toward the vacuum pump 300, thereby achieving the locking between the connector 100 and the vacuum pump 300. During the locking process, it is not necessary to rotate the connecting body 10 and the vacuum pump 300, which helps to reduce the operating space, facilitates the adjustment of the angle and position of the vacuum gauge 200 relative to the connecting body 10, and further facilitates operations such as reading values ​​from the vacuum gauge 200.

[0080] The specific structure of connector 100 is not limited here.

[0081] In some embodiments, please continue reading Figures 3 to 5The connecting body 10 includes a first pipe 11 and a second pipe 12 that are interconnected. The two ends of the first pipe 11 form a third interface 111 and a fourth interface 112, respectively. The end of the second pipe 12 away from the first pipe 11 forms a first interface 121. The connecting body 10 also includes a connecting branch pipe 13 that is connected to the second pipe 12. The end of the connecting branch pipe 13 away from the second pipe 12 forms a second interface 131.

[0082] In this way, the size of connector 100 and the installation space required for connector 100 can be reduced as much as possible, and the connection between the main body 10 and vacuum gauge 200, pressure holding switch 20 and vacuum pump 300 can be facilitated.

[0083] This application provides a simple, quick, easy-to-connect, portable, and leak-proof integrated vacuum connector 100 to ensure that air conditioner installation meets standard requirements, maximizes energy efficiency, and reduces the risk of leakage. By making the connector body 10 a one-piece molded structure, it solves the problem of installers quickly connecting various functional components, while also reducing many unnecessary connectors and preventing the risk of leakage due to connections between components. The connector 100 integrates a valve core switch 540, seals, and functional connection devices, making it more convenient for installers to operate in confined spaces, and its operation is simple and practical.

[0084] The first pipe 11 and the second pipe 12 may intersect; for example, the first pipe 11 and the second pipe 12 may be perpendicular to each other.

[0085] The first pipe 11 has a third interface 111 and a fourth interface 112 at its two ends, respectively. That is, the third interface 111 and the fourth interface 112 are set relative to each other. Of course, the third interface 111 and the fourth interface 112 may not be set relative to each other, that is, the third interface 111 and the fourth interface 112 are set separately.

[0086] The connecting branch pipe 13 and the first pipe 11 can be intersecting or parallel.

[0087] In some embodiments, please refer to Figures 3 to 5 The centerline of the first pipe 11 and the centerline of the second pipe 12 define a first plane. The centerline of the connecting branch pipe 13 is perpendicular to the centerline of the second pipe 12, and the angle between the branch pipe 13 and the first plane ranges from 0° to 360°.

[0088] In other words, the angle between the connecting branch pipe 13 and the first plane can be arbitrary. This allows the installer to read values ​​quickly from the front without having to bend down in confined spaces.

[0089] The vacuuming operation includes the following steps: After connecting the entire unit, open the valve core switch 540 to connect the air conditioner to the second connection channel; start the vacuum pump 300 and run it for about 15 minutes, then read the value of the vacuum gauge 200 (the value that meets the standard); after vacuuming, close the pressure holding switch 20, maintain the pressure for a certain period of time, and ensure that the vacuum value is within a stable range, then close the valve core switch 540 to disconnect the air conditioner from the second connection channel; remove the first interface 121 from the valve body 410 of the air conditioner; then start the air conditioner for operation and testing, and the operation is complete.

[0090] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in other embodiments," "in yet another embodiment," or "exemplary," 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 embodiments of this application. In this application, 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 a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0091] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the protection scope of this application.

Claims

1. A connector, characterized in that, The connector, used in air conditioners, includes: The connecting body includes a first connecting channel and a first interface, a second interface, a third interface, and a fourth interface, all of which are connected to the first connecting channel. The first interface is used to connect to the valve body of the air conditioner, the second interface is used to connect to a vacuum gauge, and the fourth interface is used to connect to a vacuum pump. The connecting body is a one-piece molded structure. A pressure-holding switch is connected to the third interface.

2. The connector according to claim 1, characterized in that, The connector includes a first connecting nut, which is disposed on the second interface for connecting the second interface to the vacuum gauge.

3. The connector according to claim 2, characterized in that, The connector includes a sealing ring sandwiched between the first connecting nut and the vacuum gauge; and / or, The first connecting nut is aligned with the vacuum gauge along a first direction. The first connecting nut is rotatably connected to the second interface. During the rotation of the first connecting nut relative to the second interface, the position of the first connecting nut in the first direction remains unchanged.

4. The connector according to claim 1, characterized in that, The fourth interface is connected to the vacuum pump.

5. The connector according to claim 1, characterized in that, The connector includes a second connecting nut, which is disposed on the fourth interface for connecting the fourth interface to the vacuum pump.

6. The connector according to claim 5, characterized in that, The connector includes a sealing ring sandwiched between the second connecting nut and the vacuum pump; and / or, The second connecting nut is connected to the vacuum pump along the second direction, and the second connecting nut is rotatably connected to the fourth interface. During the rotation of the second connecting nut relative to the fourth interface, the position of the second connecting nut in the second direction remains unchanged.

7. The connector according to claim 1, characterized in that, The connecting body includes a first pipe and a second pipe that are interconnected. The two ends of the first pipe form the third interface and the fourth interface, respectively. The end of the second pipe away from the first pipe forms the first interface. The connecting body also includes a connecting branch pipe that is connected to the second pipe. The end of the connecting branch pipe away from the second pipe forms the second interface.

8. The connector according to claim 7, characterized in that, The centerline of the first pipeline and the centerline of the second pipeline define a first plane. The centerline of the connecting branch pipe is perpendicular to the centerline of the second pipeline, and the angle between the branch pipe and the first plane ranges from 0° to 360°.

9. An air conditioner, characterized in that, The air conditioner includes: Outdoor unit, the outdoor unit including valve body; The connecting pipe includes a second connecting channel and a fifth interface and a sixth interface that are both connected to the second connecting channel, and the fifth interface is connected to the valve body; The connector according to any one of claims 1 to 8, wherein the first interface is configured to connect to the sixth interface, and the fourth interface is configured to connect to a vacuum pump to evacuate the outdoor unit via the vacuum pump.

10. The air conditioner according to claim 9, characterized in that, The air conditioner includes a connecting hose, wherein the first interface and the sixth interface are connected via the connecting hose; and / or The connecting pipe also includes a valve core switch and a seventh interface communicating with the second connecting channel. The valve core switch is disposed on the seventh interface and is used to selectively open or close the valve body of the air conditioner. The operating part of the pressure holding switch is exposed outside the connecting body, and the operating part of the valve core switch is a different color from the operating part of the pressure holding switch.

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