Refrigerant cleaning apparatus and viewing assembly therefor

Abstract

This utility model belongs to the field of refrigerant cleaning, and specifically relates to a refrigerant cleaning device and its observation component. The observation component of the refrigerant cleaning device includes: a viewing window base comprising a cavity with openings at both ends, the side wall of which is provided with a window; a refrigerant pipe with transparent walls, disposed within the cavity; a transparent element sealed and installed at the window; and two end caps, respectively covering the two openings of the cavity and sealingly connected to both ends of the refrigerant pipe; each end cap has a refrigerant through hole communicating with the refrigerant pipe. This utility model places the refrigerant pipe within the cavity, preventing direct contact with the external environment and reducing the formation of water vapor on the outer surface of the refrigerant pipe due to low refrigerant temperature. The transparent element sealed and installed at the window enhances the overall safety of the observation component.

Description

Technical Field

[0001] This utility model relates to the field of refrigerant cleaning, and in particular to a refrigerant cleaning device and its observation component. Background Technology

[0002] Refrigerant cleaning equipment is a device that recovers refrigerant (i.e., coolant) from automotive air conditioning systems, performs leak detection, cleaning, and refills with new refrigerant. To enable workers to promptly detect the refrigerant cleaning process, an observation panel is installed on the equipment. This panel typically includes a transparent refrigerant pipe connected to the refrigerant cleaning pipeline. Because refrigerant flows through this pipe, water vapor easily forms on its surface, affecting visibility. Furthermore, the high pressure within the cleaning pipeline poses a risk of the refrigerant pipe bursting, threatening the safety of workers. Utility Model Content

[0003] The main purpose of this utility model is to provide a refrigerant cleaning device and its observation component, which aims to solve the technical problems in the prior art where water mist easily forms on the outer surface of refrigerant pipes and refrigerant pipe bursts can easily injure workers.

[0004] To achieve the aforementioned objectives, the first aspect of this utility model provides an observation component for a refrigerant cleaning device, comprising:

[0005] A viewing window base includes a cavity with openings at both ends, and the side walls of the cavity are provided with windows;

[0006] A refrigerant pipe, with transparent walls, is installed inside the cavity;

[0007] A transparent component, sealed and installed in the window;

[0008] The end caps include two, which respectively cover the two openings at both ends of the cavity and are sealed to both ends of the refrigerant pipe; the end caps are provided with refrigerant through holes, which are connected to the refrigerant pipe.

[0009] Furthermore, the transparent component is a plate-shaped structural component made of polymer material.

[0010] Furthermore, the observation components of the refrigerant cleaning equipment also include a lighting module;

[0011] On the side wall of the cavity, a light-transmitting hole is provided, avoiding the window, and the lighting module is fixedly installed on the outer side wall of the cavity corresponding to the light-transmitting hole.

[0012] Furthermore, the lighting module includes a lamp panel and lamp beads, with the lamp beads mounted on the lamp panel;

[0013] The outer wall of the cavity is provided with a recessed groove adapted to the lamp panel, and the bottom wall of the recessed groove is provided with a light-transmitting hole adapted to the lamp bead.

[0014] The lamp board is installed in the recess, and the lamp beads are inserted into the light-transmitting holes.

[0015] Furthermore, the lamp panel is sealed to the bottom wall of the settling tank.

[0016] Furthermore, the end cap includes a mounting body and a flange extending along one side of the mounting body;

[0017] The flange is inserted along the opening of the cavity and abuts against the port of the refrigerant pipe through a sealing gasket; the refrigerant through hole is provided along the interior of the mounting body and the flange;

[0018] The mounting body is fixedly connected to the end of the cavity.

[0019] Furthermore, the observation components of the refrigerant cleaning equipment also include connector modules;

[0020] The connector module is installed on the mounting body and communicates with the refrigerant through hole.

[0021] Furthermore, the transparent component is sealed and bonded to the cavity with adhesive.

[0022] Furthermore, the outer wall of the cavity is provided with a recessed step corresponding to the peripheral edge of the window, and the transparent element is adapted to be installed on the step.

[0023] The second aspect of this utility model provides a refrigerant cleaning device, including an observation component of the refrigerant cleaning device as described in any of the above claims.

[0024] Beneficial effects:

[0025] The observation component of this utility model's refrigerant cleaning equipment houses the refrigerant pipes within the cavity, preventing direct contact with the external environment and reducing water vapor formation on the refrigerant pipe's outer surface due to low refrigerant temperatures. This allows operators to more clearly observe the refrigerant cleaning process. A transparent, sealed component installed at the window further isolates the cavity from external environmental influences, reducing the potential threat to operators from refrigerant pipe rupture. The sealed end cap design ensures no refrigerant leakage during flow, guaranteeing the normal operation of the cleaning equipment. Through this structural design, the observation component not only meets the requirements for observation but also improves the equipment's safety and reliability. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the observation component of a refrigerant cleaning device according to an embodiment of the present invention;

[0027] Figure 2 This is an exploded view of the observation component of a refrigerant cleaning device according to an embodiment of the present invention.

[0028] Figure 3 This is a schematic diagram of the end cap side of the observation component of a refrigerant cleaning device according to an embodiment of the present invention;

[0029] Figure 4 yes Figure 3 CC cross-section view.

[0030] in:

[0031] 10-Viewing window base; 11-Cavity; 12-Window; 13-Step; 14-Light transmission hole;

[0032] 20-Refrigerant pipe;

[0033] 30 - Transparent parts;

[0034] 40 - End cap; 41 - Mounting body; 42 - Flange; 43 - Refrigerant through hole;

[0035] 50 - Lighting module; 51 - Lamp board; 52 - Lamp chip;

[0036] 60-Connector Module;

[0037] 70 - Sealing gasket.

[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0040] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly and specifically defined.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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, 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 this utility model according to the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] Reference Figures 1 to 4An embodiment of this utility model provides an observation component for a refrigerant cleaning device, comprising: a viewing window base 10, including a cavity 11 with openings at both ends, wherein a window 12 is provided on the side wall of the cavity 11; a refrigerant pipe 20, the pipe wall of which is transparent, disposed within the cavity 11; a transparent element 30, which is sealed and installed on the window 12; and two end caps 40, which respectively cover the openings at both ends of the cavity 11 and are sealed and connected to both ends of the refrigerant pipe 20; the end caps 40 are provided with refrigerant through holes 43, which communicate with the refrigerant pipe 20.

[0044] The aforementioned viewing window base 10 is the basic support structure for the observation component. Its internal cavity 11 is hollow with openings at both ends, providing space for the installation of the refrigerant pipe 20. The window 12 on the side wall of the cavity 11 is a key channel for staff to observe the internal condition of the refrigerant pipe 20. The refrigerant pipe 20 adopts a transparent pipe wall design to allow for direct observation of the flow state and color changes of the refrigerant inside the pipe, thereby judging the cleaning progress. The transparent component 30, as the part covering the window 12, is generally a plate-shaped structure made of polymer material, which has good light transmittance and mechanical strength. It is fixed to the window 12 through a sealed installation, ensuring a clear field of view while preventing external moisture, dust, etc. from entering the cavity 11. There are two end caps 40, corresponding to the two openings at the two ends of the cavity 11 respectively. Their function is to seal and connect the two ends of the refrigerant pipe 20 to the cavity 11. At the same time, the refrigerant through hole 43 on the end cap communicates with the refrigerant pipe 20, forming a channel for refrigerant flow.

[0045] Specifically, the cavity 11 of the viewing window base 10 can be made of metal or high-strength plastic. The shape and size of the window 12 are designed according to observation needs, and are usually rectangular, rounded rectangle, semi-circular, or circular. The refrigerant pipe 20 is generally made of transparent plastic or glass material, with certain high pressure resistance and low temperature resistance. The transparent part 30 is a plate-shaped structural part made of high molecular materials such as polycarbonate and polymethyl methacrylate, with impact resistance and aging resistance. Its side profile is usually the same as the shape of the window 12. Furthermore, the transparent part 30 can also be made into a convex lens shape, which can magnify the view and allow the operator to observe the situation inside the refrigerant pipe 20 more clearly. The end cap 40 is connected to the cavity 11 by a threaded connection, screw connection, or snap-fit ​​connection to ensure sealing performance. The end cap 40 and the refrigerant pipe 20 are generally connected by a sealing gasket 70. The end cap 40 and the refrigerant pipe 20 are pressed against the two ends of the sealing gasket 70 to achieve a sealed connection. The diameter of the refrigerant through-hole 43 is determined based on the refrigerant flow rate and pressure to ensure smooth refrigerant flow.

[0046] In this embodiment, the observation component of the refrigerant cleaning equipment firstly places the refrigerant pipe 20 inside the cavity 11, preventing it from directly contacting the external environment. This reduces the formation of water mist on the outer surface of the refrigerant pipe 20 due to the low refrigerant temperature, allowing personnel to more clearly observe the refrigerant cleaning process. Secondly, the transparent component 30 is sealed and installed in the window 12, further isolating the external environment from the interior of the cavity 11. Made of a high-polymer material, it possesses high strength, enhancing the overall safety of the observation component and further reducing the possibility of a refrigerant pipe 20 bursting and posing a threat to personnel. Furthermore, the sealed connection design of the end cap 40 ensures that the refrigerant does not leak during flow, guaranteeing the normal operation of the cleaning equipment. Through this structural design, the observation component not only meets the requirements of the observation function but also improves the safety and reliability of the equipment.

[0047] In one embodiment, the observation component of the refrigerant cleaning device further includes an illumination module 50; a light-transmitting hole 14 is also provided on the side wall of the cavity 11, avoiding the window 12, and the illumination module 50 is fixedly installed on the outer side wall of the cavity 11 corresponding to the light-transmitting hole 14.

[0048] The aforementioned lighting module 50 is designed to provide sufficient illumination for the observation components in low-light conditions, allowing personnel to more clearly observe the internal conditions of the refrigerant pipe 20. The light-transmitting hole 14 is located on the side wall of the cavity 11, avoiding the window 12, thus preventing the lighting module 50 from obstructing the observation field. The lighting module 50 is fixedly installed on the outer side wall of the cavity 11 corresponding to the light-transmitting hole 14. The light emitted by the module enters the cavity 11 through the light-transmitting hole 14, illuminating the refrigerant pipe 20. The lighting module 50 can consist of a control circuit and a light-emitting element, typically an LED bulb 52, which features high brightness, low energy consumption, and long lifespan. The diameter and number of light-transmitting holes 14 are determined according to lighting requirements to ensure sufficient light enters the cavity 11. The lighting module 50 can be fixed to the cavity 11 by screws or adhesive, ensuring a secure installation. During installation, it is important to ensure that the light-transmitting hole 14 is aligned with the light-emitting element of the lighting module 50 to improve light utilization.

[0049] In this embodiment, the addition of the lighting module 50 significantly improves the observation conditions of the observation component. In dimly lit working environments, or when the refrigerant is light in color or its flow state is unclear, the illumination from the lighting module 50 makes the condition inside the refrigerant pipe 20 more clearly visible, helping workers to judge the cleaning progress and status of the refrigerant in a timely and accurate manner. Simultaneously, the design of the light-transmitting hole 14, which avoids the window 12, ensures both effective illumination and does not affect the original field of view, making the observation component more flexible and convenient to use. Furthermore, the installation of the lighting module 50 does not adversely affect the sealing performance and structural strength of the observation component, ensuring the safety and reliability of the entire component.

[0050] Reference Figure 2 and Figure 4 In one embodiment, the lighting module 50 includes a lamp board 51 and lamp beads 52, wherein the lamp beads 52 are mounted on the lamp board 51; a recessed groove adapted to the lamp board 51 is provided on the outer side wall of the cavity 11, and a light-transmitting hole 14 adapted to the lamp beads 52 is provided on the bottom wall of the recessed groove; wherein the lamp board 51 is mounted in the recessed groove, and the lamp beads 52 are inserted into the light-transmitting hole 14.

[0051] The aforementioned lighting module 50 consists of a lamp board 51 and LED beads 52. The LED beads 52 are mounted on the lamp board 51, and a control circuit is installed on the lamp board 51 to control the LED beads 52. A recessed groove is provided on the outer wall of the cavity 11, the shape and size of which are adapted to the lamp board 51 to accommodate the lamp board 51, allowing the lamp board 51 to be installed flat on the outer wall of the cavity 11. A light-transmitting hole 14 is provided on the bottom wall of the recessed groove, the position and size of which are adapted to the LED beads 52. The LED beads 52 are inserted into the light-transmitting hole 14, allowing the light emitted by the LED beads 52 to directly enter the cavity 11 through the light-transmitting hole 14. Specifically, the lamp board 51 can be a printed circuit board (PCB), on which the LED beads 52 and related electronic components are soldered. The depth and width of the recessed groove are designed according to the thickness and size of the lamp board 51 to ensure that the lamp board 51 can be tightly installed in the recessed groove. The diameter of the light-transmitting hole 14 is slightly larger than the diameter of the LED 52 so that the LED 52 can be inserted smoothly. During installation, the lamp board 51 is fixed in the recess, and the LED 52 passes through the light-transmitting hole 14 so that the light-emitting surface faces the inside of the cavity 11. This structural design makes the installation of the lighting module 50 more compact and stable, and facilitates maintenance and replacement of the LED 52.

[0052] In this embodiment, the lamp board 51 is installed in the recess, making the lighting module 50 flush with the outer wall of the cavity 11. This reduces the impact of external collisions on the lamp board 51 and improves the durability of the lighting module 50. The LED beads 52 are inserted into the light-transmitting holes 14, allowing light to be projected more directly into the cavity 11, reducing light scattering and loss, and improving lighting efficiency. Furthermore, this structure facilitates the replacement and maintenance of the LED beads 52. When a particular LED bead 52 malfunctions, it can be replaced simply by removing the lamp board 51, without disassembling the entire observation assembly, reducing maintenance costs and difficulty. Simultaneously, the design of the recess and the light-transmitting holes 14 also provides some dust and water protection, protecting the lamp board 51 and LED beads 52 from external environmental influences and extending the service life of the lighting module 50.

[0053] Furthermore, the aforementioned lamp panel 51 is sealed to the bottom wall of the recessed tank. This sealed connection further improves the sealing performance of the lighting module 50, preventing moisture, dust, and other contaminants from entering the cavity 11 and affecting the normal operation of the lamp panel 51 and the LED beads 52, as well as preventing water mist from forming on the outer wall of the refrigerant pipe 20. The sealing connection can be achieved using sealing rings, sealant, etc., ensuring there are no gaps between the lamp panel 51 and the bottom wall of the recessed tank. Specifically, a sealing groove can be made in the bottom wall of the recessed tank, a sealing ring can be installed, and then the lamp panel 51 can be placed on the sealing ring. The lamp panel 51 can then be fixed in the recessed tank using screws or other fixing methods, compressing the sealing ring to form a seal. Alternatively, sealant can be applied between the lamp panel 51 and the bottom wall of the recessed tank, and after the sealant cures, a sealing layer is formed. Regardless of the method used, the reliability of the seal must be ensured, while also not affecting the heat dissipation of the lamp panel 51.

[0054] In this embodiment, the sealed connection between the lamp panel 51 and the bottom wall of the settling tank effectively improves the waterproof and dustproof performance of the lighting module 50. During the operation of the refrigerant cleaning equipment, the surrounding environment may contain moisture, oil, etc. The sealed connection prevents these substances from entering the cavity 11, thus avoiding short circuits caused by moisture on the lamp panel 51 or dust accumulation affecting heat dissipation, thereby ensuring the stable operation of the lighting module 50. It also prevents water mist from forming on the outer wall of the refrigerant pipe 20. In addition, good sealing performance can extend the service life of the lighting module 50, reduce the number of repairs due to poor sealing, and lower equipment maintenance costs. At the same time, this design also meets the safety and reliability requirements of industrial equipment, ensuring that the observation components can work normally in various working environments.

[0055] Reference Figure 2 and Figure 4In one embodiment, the end cap 40 includes a mounting body 41 and a flange 42 extending along one side of the mounting body 41; the flange 42 is inserted into the opening of the cavity 11 and abuts against the port of the refrigerant pipe 20 through a sealing gasket 70; the refrigerant through hole 43 is disposed along the interior of the mounting body 41 and the flange 42; the mounting body 41 is fixedly connected to the end of the cavity 11.

[0056] The end cap 40 consists of a mounting body 41 and a flange 42. The flange 42 extends from one side of the mounting body 41, forming a stepped structure. When the end cap 40 is installed, the flange 42 is inserted along the opening of the cavity 11, so that the end face of the flange 42 abuts against the port of the refrigerant pipe 20, and a sealing gasket 70 is used to achieve a seal. The refrigerant through hole 43 penetrates the interior of the mounting body 41 and the flange 42, forming a channel for refrigerant flow. The ends of the mounting body 41 and the cavity 11 are fixed together by a fixed connection method (such as screw connection, welding, etc.) to ensure that the connection between the end cap 40 and the cavity 11 is firm. In this embodiment, screw connection is preferred, that is, screw holes are provided on the end walls of the mounting body 41 and the cavity 11, and then the two are connected by screws. During the connection process, the flange can provide a force to squeeze the sealing gasket 70. Specifically, the shape of the mounting body 41 can be circular or square, designed according to the shape of the opening of the cavity 11. The length and thickness of flange 42 are determined based on the depth of cavity 11 and the diameter of refrigerant pipe 20, ensuring that flange 42 can be smoothly inserted into cavity 11 and tightly connected to the port of refrigerant pipe 20. Sealing gasket 70 can be made of rubber or other elastic materials, providing good sealing performance and resistance to refrigerant corrosion. The diameter of refrigerant through-hole 43 is designed according to refrigerant flow requirements, ensuring smooth refrigerant passage. The fixing connection method between mounting body 41 and cavity 11 needs to be selected based on material and structural requirements to ensure connection strength and sealing.

[0057] In this embodiment, the structural design of the end cap 40 provides excellent sealing performance and structural strength. By inserting the flange 42 into the cavity 11 and using the sealing gasket 70 to abut against the refrigerant pipe 20, refrigerant leakage at the connection between the end cap 40 and the refrigerant pipe 20 is effectively prevented, ensuring the normal operation of the cleaning equipment. Simultaneously, the fixed connection between the mounting body 41 and the cavity 11 ensures a firm connection between the end cap 40 and the cavity 11, capable of withstanding the pressure in the cleaning pipeline and preventing the end cap 40 from detaching or being damaged due to excessive pressure. Furthermore, this structural design facilitates the installation and removal of the end cap 40. When it is necessary to replace the refrigerant pipe 20 or perform maintenance, the end cap 40 can be easily removed, improving the ease of equipment maintenance. The use of the sealing gasket 70 also provides a certain buffering effect, reducing the impact of vibration and other factors on the connection points and extending the service life of the observation components.

[0058] Reference Figures 1 to 4 In one embodiment, the observation component of the refrigerant cleaning device further includes a connector module 60; the connector module 60 is installed on the mounting body 41 and communicates with the refrigerant through hole 43.

[0059] The aforementioned connector module 60 is designed to facilitate observation of the connection between the component and the external refrigerant piping. The connector module 60 is mounted on the mounting body 41 of the end cap 40 and communicates with the refrigerant through-hole 43, allowing refrigerant to enter or exit the refrigerant pipe 20 through the connector module 60. The structure of the connector module 60 can be designed according to actual needs, commonly including threaded connectors, quick connectors, etc., to connect with different external piping systems. The connector module 60 may include a connector body and a sealing component. The connector body has a channel that matches the refrigerant through-hole 43 and is fixed to the mounting body 41 by threads or other means. The sealing component ensures a tight seal between the connector module 60 and the mounting body 41, preventing refrigerant leakage. The interface shape and size of the connector module 60 are designed according to the requirements of the external piping, ensuring a tight and convenient connection.

[0060] In this implementation, the addition of connector module 60 makes the connection between the observation component and the external refrigerant pipeline more convenient and flexible. By selecting different types of connector modules 60, different pipeline connection requirements can be met, improving the versatility and applicability of the cleaning equipment. Simultaneously, the connector module 60 is easy to install and disassemble, facilitating the installation, commissioning, and maintenance of the equipment by personnel. Furthermore, the sealed connection design between connector module 60 and the mounting body 41 ensures that refrigerant will not leak at the connection point, guaranteeing the normal operation and safety of the cleaning equipment. This design also reduces malfunctions and maintenance frequency caused by improper connections, improving the equipment's working efficiency and reliability.

[0061] Furthermore, the viewing window base 10, refrigerant pipe 20, transparent component 30, and end cap 40 can be installed outside the refrigerant cleaning equipment, and the connector module 60 can be installed on the bottom surface of the mounting body 41 facing the inside of the refrigerant cleaning equipment and inserted into the inside of the refrigerant cleaning equipment. This not only facilitates connection to the refrigerant storage tank located inside the refrigerant cleaning equipment, realizing built-in piping and avoiding complicated piping design, but also improves aesthetics and prevents the piping from affecting the user's observation of the refrigerant pipe 20.

[0062] In one embodiment, the transparent element 30 is sealed and bonded to the cavity 11 with adhesive. This method of bonding the transparent element 30 to the cavity 11 with adhesive is simple and convenient, achieving a good sealing effect and preventing external moisture, dust, etc., from entering the cavity 11 and affecting the observation effect. Specifically, before bonding the transparent element 30, the area around the window 12 of the cavity 11 and the edge of the transparent element 30 need to be cleaned to ensure the surface is flat, dry, and free of oil stains, thereby improving the adhesive strength. Then, an appropriate amount of adhesive is applied to the area around the window 12 or the edge of the transparent element 30, and the transparent element 30 is accurately placed at the window 12. A certain pressure is applied to distribute the adhesive evenly. After the adhesive cures, a strong sealed connection is formed. The adhesive used needs to have good adhesion, weather resistance, and resistance to refrigerant corrosion to adapt to the working environment of the observation component.

[0063] In this embodiment, the transparent component 30 and the cavity 11 are sealed together with adhesive. This connection method is simple to operate, does not require complex mechanical structures, and reduces production costs and installation difficulty. The adhesive forms a continuous sealing layer, effectively preventing the influence of the external environment on the interior of the cavity 11, reducing the formation of water mist on the outer surface of the refrigerant pipe 20, and ensuring a clear field of view. In addition, the adhesive has high bonding strength, ensuring a firm connection between the transparent component 30 and the cavity 11, preventing the transparent component 30 from falling off due to vibration or other factors during the operation of the cleaning equipment. At the same time, this sealing method also provides a certain buffering effect, reducing the impact of external forces on the transparent component 30 and extending its service life.

[0064] Furthermore, the outer wall of the cavity 11 is provided with a recessed step 13 corresponding to the peripheral edge of the window 12, and the transparent element 30 is adaptedly installed on the step 13.

[0065] The outer wall of the cavity 11 has a recessed step 13 along the periphery of the window 12. The shape and size of the step 13 are adapted to the transparent component 30, allowing the transparent component 30 to be accurately installed on the step 13. This structural design, combined with adhesive sealing, further improves the connection strength and sealing performance between the transparent component 30 and the cavity 11. Specifically, the depth and width of the step 13 are designed according to the thickness and size of the transparent component 30, ensuring that after the transparent component 30 is installed on the step 13, its surface is flush with or slightly lower than the outer wall of the cavity 11, facilitating the application and sealing of adhesive. When installing the transparent component 30, first place the transparent component 30 on the step 13, adjust its position to ensure a tight fit with the step 13, and then apply adhesive to the contact area between the edge of the transparent component 30 and the step 13 to achieve a seal. The step 13 provides a positioning and support structure for the transparent component 30, making installation more convenient and accurate.

[0066] In this embodiment, step 13 serves a positioning function, ensuring that the transparent component 30 can be accurately installed at window 12, avoiding installation deviations that could affect the field of view and sealing performance. Furthermore, the obstruction of the step 13 wall ensures a suitable distance between the transparent component 30 and the refrigerant pipe 20, providing sufficient cooling space and further reducing the impact of temperature differences, effectively minimizing water vapor generation. The transparent component 30, installed on step 13, increases the contact area with the cavity 11, making the adhesive bond stronger and improving the connection strength, allowing it to better withstand external pressure and impact. In addition, the recessed design of step 13 makes the installation of the transparent component 30 more level, reducing sealing problems caused by uneven surfaces, further enhancing sealing performance, and effectively preventing moisture, dust, and other contaminants from entering the cavity 11.

[0067] An embodiment of this utility model also provides a refrigerant cleaning device, including the observation component of the refrigerant cleaning device described in any of the above embodiments.

[0068] The core of the refrigerant cleaning equipment described in this embodiment lies in the inclusion of an observation component, as described in any of the previous embodiments. This observation component, a crucial part of the refrigerant cleaning equipment, is installed on the refrigerant cleaning pipeline and allows personnel to observe the refrigerant recovery, cleaning, and refilling processes. In addition to the observation component, the refrigerant cleaning equipment also includes other necessary components, such as a refrigerant recovery device, a leak detection device, a cleaning fluid filling device, and a control system. These components work in conjunction with the observation component to achieve functions such as refrigerant recovery, leak detection, cleaning, and refilling of the automotive air conditioning system with new refrigerant. Specifically, the end cap 40 of the observation component is connected to the refrigerant pipeline of the refrigerant cleaning equipment via a connector module 60. Driven by the equipment, the refrigerant enters the refrigerant pipe 20 through the refrigerant through-hole 43. Personnel observe the refrigerant state within the refrigerant pipe 20 through the transparent component 30. When illumination is required, the lighting module 50 is activated, and light illuminates the refrigerant pipe 20 through the light-transmitting hole 14 for easy observation. The equipment's control system can be connected to the lighting module 50 to achieve automatic lighting control.

[0069] In this embodiment, the refrigerant cleaning equipment including the aforementioned observation component firstly addresses the problems in the prior art where water mist easily forms on the outer surface of the refrigerant pipe 20, affecting observation and posing a risk of bursting. This allows workers to clearly and safely observe the refrigerant cleaning process, promptly identify and address problems, and improve the efficiency and accuracy of the cleaning work. Secondly, the lighting module 50 of the observation component ensures that the equipment can operate normally under various lighting conditions, expanding its usability. Furthermore, the sealing performance and structural strength design of the observation component guarantee that no refrigerant leakage will occur during operation, improving the equipment's safety and reliability. In summary, this refrigerant cleaning equipment, by adopting an advanced observation component, enhances overall performance and provides superior equipment support for refrigerant cleaning of automotive air conditioning systems.

[0070] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. An observation assembly for a refrigerant cleaning apparatus, comprising: include: A viewing window base includes a cavity with openings at both ends, and the side walls of the cavity are provided with windows; A refrigerant pipe, with transparent walls, is installed inside the cavity; A transparent component, sealed and installed in the window; The end caps include two, which respectively cover the two openings at both ends of the cavity and are sealed to both ends of the refrigerant pipe; the end caps are provided with refrigerant through holes, which are connected to the refrigerant pipe.

2. The sight assembly of a refrigerant cleaning apparatus according to claim 1, wherein The transparent component is a plate-shaped structural component made of polymer material.

3. The sight assembly of a refrigerant cleaning apparatus according to claim 1, wherein It also includes lighting modules; On the side wall of the cavity, a light-transmitting hole is provided, avoiding the window, and the lighting module is fixedly installed on the outer side wall of the cavity corresponding to the light-transmitting hole.

4. The sight assembly of a refrigerant cleaning apparatus according to claim 3, wherein The lighting module includes a lamp panel and LED chips, with the LED chips mounted on the lamp panel; The outer wall of the cavity is provided with a recessed groove adapted to the lamp panel, and the bottom wall of the recessed groove is provided with a light-transmitting hole adapted to the lamp bead. The lamp board is installed in the recess, and the lamp beads are inserted into the light-transmitting holes.

5. The sight assembly of a refrigerant cleaning apparatus according to claim 4, wherein The lamp panel is sealed to the bottom wall of the settling tank.

6. The sight assembly of a refrigerant cleaning apparatus according to any one of claims 1 to 5, wherein The end cap includes a mounting body and a flange extending along one side of the mounting body; The flange is inserted along the opening of the cavity and abuts against the port of the refrigerant pipe through a sealing gasket; the refrigerant through hole is provided along the interior of the mounting body and the flange; The mounting body is fixedly connected to the end of the cavity.

7. The sight assembly of a refrigerant cleaning apparatus according to claim 6, wherein It also includes connector modules; The connector module is installed on the mounting body and communicates with the refrigerant through hole.

8. The sight assembly of a refrigerant cleaning apparatus according to any one of claims 1 to 5, wherein The transparent component is sealed and bonded to the cavity with adhesive.

9. The sight assembly of a refrigerant cleaning apparatus according to claim 8, wherein The outer wall of the cavity is provided with a recessed step corresponding to the periphery of the window, and the transparent element is adapted to be installed on the step.

10. A refrigerant cleaning apparatus characterized by comprising: Includes the observation component of the refrigerant cleaning equipment as described in any one of claims 1 to 9.

Images