A refrigerant filling assembly

Abstract

The utility model relates to a refrigerant filling assembly. The refrigerant filling assembly comprises an opening valve, a refrigerant pipe and a leakproof quick connector. One end of the refrigerant pipe is connected to the opening valve, the other end is connected to the leakproof quick connector, and the refrigerant pipe, the opening valve and the leakproof quick connector are integrally formed and communicate with each other. The scheme provided in the application can fundamentally eliminate the possibility of connection loosening, prevent refrigerant leakage, avoid air entering the refrigeration system, ensure the filling quality of refrigerant filling, reduce the hidden danger of subsequent faults, effectively eliminate the risk of accessory loss, solve the problems of complicated operation, easy connection loosening, easy refrigerant leakage, easy air suction causing subsequent faults and easy accessory loss in the prior art, and improve the accuracy and efficiency of refrigerant filling.

Description

Technical Field

[0001] This utility model relates to the field of refrigerant filling technology, and in particular to a refrigerant filling assembly. Background Technology

[0002] Refrigerant charging technology is a crucial step in the maintenance and repair of refrigeration equipment, and its accuracy and efficiency directly affect the performance and lifespan of the equipment. For example, currently, charging refrigerant for automotive air conditioning systems generally requires the coordinated use of key components such as opening valves, refrigerant pipes, and leak-proof quick connectors. These key components provide a safe and efficient refrigerant charging channel for the air conditioning system, ensuring stable refrigerant transmission and accurate injection into the refrigeration system during the charging process.

[0003] However, currently available opening valves, refrigerant pipes, and leak-proof quick-connectors are generally separate components. Before adding refrigerant, these components need to be connected. This process is not only cumbersome and inefficient, but the connections between these components are also prone to loosening due to improper operation or external force, leading to refrigerant leakage and material waste. Furthermore, loose connections can allow air to be drawn into the refrigeration system, causing decreased refrigeration efficiency, pipe corrosion, compressor wear, and other subsequent malfunctions, increasing maintenance costs and complexity. In addition, because these individual components are small, they are easily lost during storage and use, causing inconvenience.

[0004] Therefore, there is an urgent need to design a refrigerant charging assembly that can fundamentally eliminate the possibility of loose connections, prevent refrigerant leakage, avoid air entering the refrigeration system, ensure the quality of refrigerant charging, reduce the potential for subsequent malfunctions, and effectively eliminate the risk of missing parts. This solves the problems of cumbersome operation, easy loosening of connections, easy refrigerant leakage, easy air intake leading to subsequent malfunctions, and easy loss of parts in existing technologies, thus improving the accuracy and efficiency of refrigerant charging. Summary of the Invention

[0005] To overcome the problems existing in related technologies, this application provides a refrigerant charging assembly that can fundamentally eliminate the possibility of loose connections, prevent refrigerant leakage, avoid air entering the refrigeration system, ensure the quality of refrigerant charging, reduce the potential for subsequent malfunctions, and effectively eliminate the risk of missing parts. It solves the problems of cumbersome operation, easy loose connections, easy refrigerant leakage, easy air intake leading to subsequent malfunctions, and easy loss of parts in the prior art, and improves the accuracy and efficiency of refrigerant charging.

[0006] This application provides a refrigerant charging assembly, including an opening valve, a refrigerant pipe, and a leak-proof quick connector; one end of the refrigerant pipe is connected to the opening valve, and the other end is connected to the leak-proof quick connector, and the refrigerant pipe, the opening valve, and the leak-proof quick connector are integrally formed and interconnected.

[0007] In a preferred embodiment of this application, the opening valve includes a threaded handle, a valve body, a valve core assembly, and a flow channel; the threaded handle is disposed at one end of the valve body and is used to drive the valve core assembly to move up and down; the valve body forms a receiving cavity; the valve core assembly is disposed within the receiving cavity and cooperates with the flow channel to control the opening and closing of the flow channel; the flow channel is connected to the receiving cavity and the refrigerant pipe respectively to realize the flow of refrigerant.

[0008] In a preferred embodiment of this application, the opening valve further includes a first sealing ring, a second sealing ring, and a sealing gasket; the first sealing ring and the second sealing ring are respectively disposed between the valve body and the valve core assembly from top to bottom, for achieving a seal between the valve body and the valve core assembly; the sealing gasket is disposed at the lower end of the valve body, for achieving a seal between the valve body and the component to be connected.

[0009] In a preferred embodiment of this application, a pressure gauge connector is also included; the pressure gauge connector is disposed on one side of the valve body and communicates with the accommodating cavity, and is used to connect a pressure gauge.

[0010] In a preferred embodiment of this application, the leak-proof quick connector includes a main body shell, a first connecting end, and a second connecting end; the main body shell is provided with a flow guiding channel; the first connecting end is disposed on the side of the main body shell and connected to the refrigerant pipe, so that the flow guiding channel can communicate with the refrigerant pipe; the second connecting end is disposed at the lower end of the main body shell and communicates with the flow guiding channel, for connecting to the end to be filled.

[0011] In a preferred embodiment of this application, the leak-proof quick connector further includes an O-ring; the O-ring is disposed at the bottom end of the second connecting end and is used to achieve a seal at the connection between the second connecting end and the end to be filled.

[0012] In a preferred embodiment of this application, the length of the refrigerant pipe is 35-45cm.

[0013] The technical solution provided in this application has the following beneficial effects: The refrigerant charging assembly of this application includes an opening valve, a refrigerant pipe, and a leak-proof quick connector. By setting the refrigerant pipe, opening valve, and leak-proof quick connector as an integral part, the possibility of loose connection can be fundamentally eliminated, ensuring the stability and reliability of the refrigerant charging process. During the refrigerant transmission process, the refrigerant flows smoothly in the stable channel formed by the refrigerant pipe, opening valve, and leak-proof quick connector, and leakage will not occur due to problems with the connection points, avoiding material waste. At the same time, since there are no connection gaps, air cannot enter the refrigeration system, effectively preventing the occurrence of subsequent failures such as reduced system refrigeration efficiency, pipe corrosion, and compressor wear, reducing maintenance costs and complexity. Moreover, the integrally molded refrigerant pipe, opening valve, and leak-proof quick connector not only eliminates the risk of missing parts, but also eliminates the need for operators to spend time connecting the opening valve, refrigerant pipe, and leak-proof quick connector one by one in actual operation. They can simply use the refrigerant charging assembly directly, making it more convenient to use and store, and improving the overall ease of use. By setting up a pressure gauge connector to connect a pressure gauge, the pressure inside the valve can be monitored in real time. Operators can adjust the speed and amount of refrigerant charging in a timely manner based on the pressure gauge readings, further ensuring the safety and stability of the refrigerant charging process.

[0014] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0015] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0016] Fig. 1 This is a schematic diagram of the refrigerant charging assembly shown in the embodiments of this application; Fig. 2 This is a schematic diagram of the opening valve shown in an embodiment of this application; Fig. 3 This is a schematic diagram of the structure of the leak-proof quick connector shown in the embodiment of this application.

[0017] Explanation of reference numerals in the attached figures: 1. Opening valve; 11. Threaded handle; 12. Valve body; 121. Receptacle; 13. Valve core assembly; 14. Flow passage; 15. First sealing ring; 16. Second sealing ring; 17. Sealing gasket; 2. Refrigerant pipe; 3. Leak-proof quick connector; 31. Main body shell; 311. Flow guide channel; 32. First connecting end; 33. Second connecting end; 4. Pressure gauge connector; 5. Pressure gauge. Detailed Implementation

[0018] Preferred embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0019] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0020] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0021] Currently, refrigerant valves, refrigerant pipes, and leak-proof quick-connectors on the market are generally separate components. Before adding refrigerant, these components must be connected. This process is not only cumbersome and inefficient, but the connections between these components are also prone to loosening due to improper operation or external force, leading to refrigerant leakage and material waste. Furthermore, loose connections can allow air to be drawn into the refrigeration system, causing decreased refrigeration efficiency, pipe corrosion, compressor wear, and other subsequent malfunctions, increasing maintenance costs and complexity. In addition, because these individual components are small, they are easily lost during storage and use, causing inconvenience.

[0022] To address the aforementioned issues, this application provides a refrigerant charging assembly that fundamentally eliminates the possibility of loose connections. This prevents refrigerant leakage, avoids air entering the refrigeration system, ensures the quality of refrigerant charging, reduces the risk of subsequent malfunctions, and effectively eliminates the risk of missing parts. It solves the problems of cumbersome operation, easy loose connections, easy refrigerant leakage, easy air intake leading to subsequent malfunctions, and easy loss of parts in the prior art, thereby improving the accuracy and efficiency of refrigerant charging.

[0023] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings. Example

[0024] Please see Figs. 1-3 The refrigerant charging assembly of this application includes an opening valve 1, a refrigerant pipe 2, and a leak-proof quick connector 3. One end of the refrigerant pipe 2 is connected to the opening valve 1, and the other end is connected to the leak-proof quick connector 3. The refrigerant pipe 2, the opening valve 1, and the leak-proof quick connector 3 are integrally formed and interconnected. By designing the refrigerant pipe 2, the opening valve 1, and the leak-proof quick connector 3 as an integral unit, the possibility of loosening of the connection is fundamentally eliminated. This ensures that during the refrigerant charging process, the refrigerant can be smoothly transmitted within the stable channel formed by the refrigerant pipe 2, the opening valve 1, and the leak-proof quick connector 3, preventing refrigerant leakage due to loose connections and avoiding material waste. Simultaneously, since there are no connection gaps, air cannot be drawn into the refrigeration system, effectively preventing subsequent failures such as decreased system refrigeration efficiency, pipe corrosion, and compressor wear, thus reducing maintenance costs and complexity. Moreover, the one-piece refrigerant filling assembly integrates the three originally separate components into one unit, eliminating the risk of component loss and making it more convenient to use and store.

[0025] Specifically, the opening valve 1 includes a threaded handle 11, a valve body 12, a valve core assembly 13, and a flow channel 14. The threaded handle 11 is located at one end of the valve body 12 and is used to move the valve core assembly 13 up and down. For example, in actual operation, the operator only needs to turn the threaded handle 11 clockwise to lower the valve core assembly 13, and conversely, when the operator turns the threaded handle 11 counterclockwise, the valve core assembly 13 rises. The valve body 12 forms a receiving cavity 121, providing installation space for the valve core assembly 13. The valve core assembly 13 is disposed within the receiving cavity 121 and cooperates with the flow channel 14 to control the opening and closing of the flow channel 14. The flow channel 14 is connected to both the receiving cavity 121 and the refrigerant pipe 2 to facilitate the flow of refrigerant. For example, when the opening valve 1 is opened, the refrigerant can enter the refrigerant pipe 2 through the flow channel 14 and flow into the refrigerant charging end through the leak-proof quick connector 3, thereby realizing the smooth charging of refrigerant.

[0026] To further enhance the sealing performance of the opening valve 1, the opening valve 1 also includes a first sealing ring 15, a second sealing ring 16, and a sealing gasket 17. The first sealing ring 15 and the second sealing ring 16 are respectively disposed between the valve body 12 and the valve core assembly 13 from top to bottom, for sealing the valve body 12 and the valve core assembly 13. When the valve core assembly 13 moves within the receiving cavity 121, the first sealing ring 15 and the second sealing ring 16 can effectively prevent refrigerant leakage from the gap between the valve body 12 and the valve core assembly 13. The sealing gasket 17 is disposed at the lower end of the valve body 12 for sealing the valve body 12 with the component to be connected. For example, the component to be connected can be a refrigerant tank. When the opening valve 1 is connected to the opening of the refrigerant tank, the sealing gasket 17 can fill the gap between the valve body 12 and the opening of the refrigerant tank, achieving a seal between the valve body 12 and the opening of the refrigerant tank, preventing refrigerant leakage from the connection point.

[0027] Furthermore, the refrigerant charging assembly of this application also includes a pressure gauge connector 4. The pressure gauge connector 4 is located on one side of the valve body 12 and communicates with the receiving cavity 121, for connecting a pressure gauge 5. The pressure gauge 5 is used to monitor the pressure inside the opening valve 1 in real time, ensuring the safety and stability of the refrigerant charging process. Therefore, during the refrigerant charging process, the operator can adjust the speed and amount of refrigerant charging in a timely manner according to the displayed value of the pressure gauge 5, ensuring the safety and stability of the refrigerant charging process.

[0028] The leak-proof quick connector 3 includes a main body shell 31, a first connecting end 32, and a second connecting end 33. The main body shell 31 has a flow channel 311 to provide a passage for refrigerant flow. The first connecting end 32 is located on the side of the main body shell 31 and is connected to the refrigerant pipe 2, allowing the flow channel 311 to communicate with the refrigerant pipe 2, thus enabling the refrigerant to smoothly enter the flow channel 311 from the refrigerant pipe 2. The second connecting end 33 is located at the lower end of the main body shell 31 and is connected to the flow channel 311, used to connect to the end to be charged. When refrigerant needs to be added to the refrigeration equipment, simply connect the second connecting end 33 to the end to be charged (i.e., the refrigeration equipment), and the refrigerant can enter the refrigeration equipment through the flow channel 311.

[0029] To ensure a tight seal at the connection between the second connecting end 33 and the end to be filled, the leak-proof quick connector 3 also includes an O-ring. The O-ring is located at the bottom end of the second connecting end 33 and is used to seal the connection between the second connecting end 33 and the end to be filled. When the second connecting end 33 is connected to the end to be filled, the O-ring can elastically deform to fill the gap at the connection and prevent refrigerant leakage.

[0030] Furthermore, to adapt to the charging requirements of different refrigeration equipment, the length of the refrigerant pipe 2 is designed to be 35-45cm. This not only meets the length requirements of most refrigeration equipment for refrigerant charging but also ensures that operators will not experience unnecessary trouble due to the refrigerant pipe being too long or too short during the charging process. Preferably, the length of the refrigerant pipe 2 is 29.5cm, and it is made of 600-3000PSI rubber tubing, which has good flexibility and pressure resistance, improving the practicality and reliability of the refrigerant charging assembly.

[0031] Working principle: During refrigerant charging, the operator first connects the refrigerant charging assembly to the refrigerant tank. The sealing gasket 17 of the opening valve 1 fills the gap between the valve body 12 and the refrigerant tank opening, achieving a seal and preventing refrigerant leakage from the connection. Next, the operator turns the threaded handle 11 clockwise, causing the valve core assembly 13 to descend and opening the flow channel 14. The refrigerant in the refrigerant tank enters the refrigerant pipe 2 through the flow channel 14. At this time, the pressure gauge monitors the pressure inside the opening valve 1 in real time, and the operator can adjust the refrigerant charging speed and amount according to the pressure gauge reading. The refrigerant flows along the refrigerant pipe 2 into the guide channel 311 of the leak-proof quick connector 3. Since the first connecting end 32 is connected to the refrigerant pipe 2 and the second connecting end 33 is connected to the end to be charged, and the O-ring at the bottom of the second connecting end 33 ensures a seal at the connection, the refrigerant finally flows smoothly into the refrigeration equipment to be charged. Once the refrigerant filling is complete, rotate the threaded handle 11 counterclockwise to raise the valve core assembly 13, thereby closing the flow channel 14 and completing the refrigerant filling.

[0032] In this embodiment, the refrigerant charging assembly of this application includes an opening valve, a refrigerant pipe, and a leak-proof quick connector. By using an integrally molded refrigerant pipe, opening valve, and leak-proof quick connector, the possibility of loose connections can be fundamentally eliminated, ensuring the stability and reliability of the refrigerant charging process. During refrigerant transmission, the refrigerant flows smoothly within the stable channel formed by the refrigerant pipe, opening valve, and leak-proof quick connector, preventing leakage due to connection issues and avoiding material waste. Simultaneously, since there are no connection gaps, air cannot enter the refrigeration system, effectively preventing subsequent failures such as decreased system refrigeration efficiency, pipe corrosion, and compressor wear, reducing maintenance costs and complexity. Moreover, the integrally molded refrigerant pipe, opening valve, and leak-proof quick connector not only eliminates the risk of missing parts, but also eliminates the need for operators to spend time connecting the opening valve, refrigerant pipe, and leak-proof quick connector individually in actual operation; they can simply use the refrigerant charging assembly directly, making it more convenient to use and store, and improving overall ease of use. By setting up a pressure gauge connector to connect a pressure gauge, the pressure inside the valve can be monitored in real time. Operators can adjust the speed and amount of refrigerant charging in a timely manner based on the pressure gauge readings, further ensuring the safety and stability of the refrigerant charging process.

[0033] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0034] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., may be used here to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figure. It should be understood that spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device as described in the figure.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A refrigerant charging assembly, characterized in that, Includes an opening valve (1), a refrigerant pipe (2), and a leak-proof quick connector (3); One end of the refrigerant pipe (2) is connected to the opening valve (1), and the other end is connected to the leak-proof quick connector (3). The refrigerant pipe (2), the opening valve (1) and the leak-proof quick connector (3) are integrally formed and interconnected.

2. The refrigerant charging assembly according to claim 1, characterized in that, The opening valve (1) includes a threaded handle (11), a valve body (12), a valve core assembly (13), and a flow channel (14); The threaded handle (11) is located at one end of the valve body (12) and is used to drive the valve core assembly (13) to move up and down; The valve body (12) forms a receiving cavity (121); The valve core assembly (13) is disposed in the accommodating cavity (121) and cooperates with the flow channel (14) to control the opening and closing of the flow channel (14); The flow channel (14) is connected to the accommodating cavity (121) and the refrigerant pipe (2) respectively, and is used to realize the flow of refrigerant.

3. The refrigerant charging assembly according to claim 2, characterized in that, The opening valve (1) also includes a first sealing ring (15), a second sealing ring (16), and a sealing gasket (17); The first sealing ring (15) and the second sealing ring (16) are respectively arranged between the valve body (12) and the valve core assembly (13) from top to bottom, for the purpose of sealing the valve body (12) and the valve core assembly (13); The sealing gasket (17) is disposed at the lower end of the valve body (12) to achieve a seal between the valve body (12) and the part to be connected.

4. The refrigerant charging assembly according to claim 2, characterized in that, It also includes a pressure gauge connector (4); The pressure gauge connector (4) is located on one side of the valve body (12) and is connected to the accommodating cavity (121) for connecting the pressure gauge (5).

5. The refrigerant charging assembly according to claim 1, characterized in that, The leak-proof quick connector (3) includes a main body shell (31), a first connecting end (32), and a second connecting end (33); The main body shell (31) is provided with a flow channel (311); The first connection end (32) is located on the side of the main body shell (31) and is connected to the refrigerant pipe (2), so that the flow channel (311) can be connected to the refrigerant pipe (2); The second connection end (33) is located at the lower end of the main body shell (31) and is connected to the flow channel (311) to realize the connection with the end to be filled.

6. The refrigerant charging assembly according to claim 5, characterized in that, The leak-proof quick connector (3) also includes an O-ring; The O-ring is disposed at the bottom end of the second connecting end (33) to achieve a seal at the connection between the second connecting end (33) and the end to be filled.

7. The refrigerant charging assembly according to claim 1, characterized in that, The length of the refrigerant pipe (2) ranges from 35 to 45 cm.

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