A dynamic filter for a refrigeration appliance

Abstract

The utility model relates to filter technical field especially a kind of refrigeration equipment dynamic filter, including filter shell, the inside of filter shell is provided with filter core subassembly, the inside installation of filter core subassembly has rotary loosening mechanism, the both ends of filter shell are fixed with first connecting pipe, the outer end of first connecting pipe is fixed with connecting sleeve, the inside connection of connecting sleeve has the second connecting pipe for connecting between outside pipeline. Advantageous effect lies in: the utility model first spring elastic connection frame and metal filter screen promote the both ends of drying agent, keep the both ends of drying agent neat and not loose fall off;Inside the drying agent rotates loosening frame, so that loosening frame rotates loosening to drying agent, keep loose between drying agent, facilitate filter internal air circulation, improve the drying effect of drying agent to air.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a dynamic filter for refrigeration equipment. Background Technology

[0002] The refrigerator dryer filter is a crucial component in the entire refrigeration system. Its main function is to filter out moisture and impurities that could potentially clog the pipes. The dryer filter primarily functions to filter impurities; generally, its specifications are determined based on the refrigerator or air conditioner's refrigeration system, including its diameter, inner diameter, outer diameter, and internal components such as the filter bowl, mesh fabric, and molecular sieve. It should also consider factors like adsorption capacity, bulk density, and static water adsorption. If the refrigerator system is well-configured, very few impurities will be generated, preventing problems like ice blockage, and the dryer's lifespan is typically 7-10 years.

[0003] For example, the prior art Chinese patent publication number "CN220750456U" provides a sealed circulating drying filter for refrigeration equipment, including a filter. The filter has grooves on both the top and bottom inner walls. The same fixing rod is fixedly installed on the inner walls of both sides of the groove. A sliding seat is slidably installed on the fixing rod. One end of a first spring is fixedly installed on one side of the sliding seat. The other end of the first spring is fixedly installed on the side wall of the groove. One side of the sliding seat extends into the filter and is fixedly installed with the same first filter screen. The filter has fixing grooves on both the top and bottom inner walls.

[0004] The device can drive two cams to rotate by rotating a lever. The rotation of the cams causes the first and second filters to slide back and forth continuously, which can effectively prevent the first and second filters from becoming clogged, thus making it convenient for people to use.

[0005] In existing dynamic filters for refrigeration equipment, the desiccant inside the filter absorbs dust and moisture during long-term use, causing condensation and adhesion. This reduces the gaps between the desiccant particles, hindering airflow inside the filter. Furthermore, the desiccant is not frequently loosened and dispersed to prevent condensation. Additionally, the connection between the filter's outer end and external pipes is cumbersome to disassemble and install, making it inconvenient for quick cleaning, maintenance, and replacement.

[0006] Therefore, a dynamic filter for refrigeration equipment is proposed. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing filters where, during prolonged use, the desiccant inside the filter absorbs dust and moisture, causing condensation and adhesion. This reduces the gaps between the desiccant particles, hindering airflow within the filter and preventing the desiccant from being loosened and dispersed frequently to avoid condensation. Therefore, this invention proposes a dynamic filter for refrigeration equipment.

[0008] To achieve the above objectives, this utility model provides the following technical solution: Design a dynamic filter for refrigeration equipment, including a filter housing, a filter element assembly inside the filter housing, a rotation loosening mechanism installed inside the filter element assembly, a first connecting pipe fixed to both ends of the filter housing, a connecting sleeve fixed to the outer end of the first connecting pipe, a second connecting pipe for connecting to an external pipe connected inside the connecting sleeve, and a snap-fit ​​connection mechanism provided between the first connecting pipe and the connecting sleeve. The filter core assembly includes a desiccant tightly packed in the middle of the filter housing, metal filter screens laid at both ends of the desiccant, a connecting frame connected to the outside of the metal filter screen, and a first spring connected to the outer side of the outer end of the connecting frame. Furthermore, the filter housing is a hollow cylindrical structure, and the outer end of the first spring abuts against one end of the inner surface of the filter housing. Furthermore, the rotary loosening mechanism includes a loosening frame for loosening the desiccant, which is rotatably installed in the middle of the desiccant, a rotating rod fixed to both ends of the loosening frame, and a torsion rod fixed to the outer end of the rotating rod. Furthermore, the loosening frame has a rectangular frame structure, and a rotating hole is opened in the middle of the side of the filter housing. The rotating rod slides through the rotating hole, and a sealing sleeve for tightly sealing the outer end of the rotating hole is sleeved on the outer end of the rotating rod. Furthermore, the snap-fit ​​connection mechanism includes an installation groove inside the connecting sleeve, a sealing gasket bonded to the inner end of the second connecting tube and abutting against the inner end of the installation groove, a groove on the inner end surface of the second connecting tube, and a snap-fit ​​rod hinged to the inside of the groove and whose top end is slidably snapped into the top end of the installation groove. Furthermore, the sealing gasket has an annular structure and is made of elastic rubber material. The groove is located on the outside of the sealing gasket, and a hinge post is fixed at its inner end. The groove has a rectangular groove structure.

[0009] Furthermore, the outer end of the latching rod is inclined outward, and its inner end has a hinge hole. The latching rod is arranged in a cross shape, and the hinge pin slides through the hinge hole. A first spring is connected to the inner side of the outer end of the latching rod, and the inner end of the first spring is connected to the inner side of the groove. Furthermore, the outer side of the connecting sleeve has a disassembly hole, which is connected to the outer side of the mounting groove and is distributed in a cross shape, and is located at the outer top of the snap-fit ​​rod.

[0010] The dynamic filter for refrigeration equipment proposed in this utility model has the following advantages: 1. This utility model installs a desiccant in the middle of the inside of the filter housing and lays metal filter screens at both ends of the desiccant. Furthermore, a first spring is installed on the outside of the metal filter screens through a connecting frame. The first spring springs the connecting frame and the metal filter screens to push the two ends of the desiccant, keeping the two ends of the desiccant neat and preventing them from falling off.

[0011] 2. This utility model installs a loosening frame in the middle of the desiccant, and fixes a rotating rod and a torsion rod at both ends of the loosening frame. Therefore, after the filter has been filtering dust and drying water vapor for a long time, the torsion rod and the rotating rod can be manually rotated frequently to rotate the loosening frame inside the desiccant, so that the loosening frame rotates and loosens the desiccant, keeping the desiccant loose, facilitating air circulation inside the filter, and improving the drying effect of the desiccant on the air.

[0012] 3. In this utility model, the filter housing is fixed with connecting sleeves at both ends by first connecting pipes. When connecting the filter to an external pipe, the second connecting pipe, which serves as the external pipe connector, is inserted into the mounting groove inside the connecting sleeve, and the sealing gasket is pressed against the inside of the mounting groove to maintain a sealed connection. At the same time, the second spring springs the snap-fit ​​rod to rotate out of the groove, and the outer end of the snap-fit ​​rod slides and snaps into the inner outer end of the mounting groove. Therefore, the second connecting pipe and the connecting sleeve can be quickly snapped together. When it is necessary to disassemble, replace, and maintain the filter, a tool with a thin strip structure is inserted into the disassembly hole and pushes the snap-fit ​​rod to compress the second spring, so that the outer end of the snap-fit ​​rod enters the groove, thereby allowing the second connecting pipe to be quickly pulled out, which facilitates quick disassembly, installation, and maintenance of the filter. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 A schematic diagram of the connecting sleeve part; Figure 3 This utility model Figure 1 A schematic diagram of the desiccant and rotating rod; Figure 4 This utility model Figure 1 A schematic diagram of the loosened frame section; Figure 5 This utility model Figure 1 Schematic diagram of the second connecting pipe and clamping rod; Figure 6 This utility model Figure 1 A schematic diagram of the groove and the second connecting pipe section; Figure 7 This utility model Figure 1 A schematic diagram of the locking rod and the second spring section.

[0014] In the diagram: 1. Filter housing; 2. Torque rod; 3. First connecting pipe; 4. Connecting sleeve; 5. Disassembly hole; 6. Second connecting pipe; 7. Rotation hole; 8. Mounting groove; 9. Desiccant; 10. Sealing sleeve; 11. Rotating rod; 12. Metal filter screen; 13. First spring; 14. Connecting bracket; 15. Loosening bracket; 16. Snap-fit ​​rod; 17. Groove; 18. Second spring; 19. Sealing gasket; 20. Hinge post; 21. Hinge hole. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Example 1 Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The diagram shows a dynamic filter for a refrigeration device, including a filter housing 1. Inside the filter housing 1, a filter element assembly is provided. Inside the filter element assembly, a rotation loosening mechanism is installed. At both ends of the filter housing 1, a first connecting pipe 3 is fixed. At the outer end of the first connecting pipe 3, a connecting sleeve 4 is fixed. Inside the connecting sleeve 4, a second connecting pipe 6 is connected for connection with an external pipe. A snap-fit ​​connection mechanism is provided between the second connecting pipe 6 and the connecting sleeve 4.

[0017] The filter element assembly includes a desiccant 9 tightly packed in the middle of the filter housing 1, a metal filter screen 12 laid at both ends of the desiccant 9, a connecting frame 14 connected to the outside of the metal filter screen 12, and a first spring 13 connected to the outside of the outer end of the connecting frame 14. The filter housing 1 is a hollow cylindrical structure, and the outer end of the first spring 13 abuts against one end of the inner side of the filter housing 1. On the outside of the metal filter screen 12, a first spring 13 is installed through the connecting frame 14, so that the first spring 13 springs the connecting frame 14 and the metal filter screen 12 to push the two ends of the desiccant 9, keeping the two ends of the desiccant 9 neat and not loose or falling off.

[0018] The rotary loosening mechanism includes a loosening frame 15 for loosening the desiccant 9, which is rotatably installed in the middle of the desiccant 9; a rotating rod 11 fixed at both ends of the loosening frame 15; and a torsion rod 2 fixed at the outer end of the rotating rod 11. The loosening frame 15 has a rectangular frame structure. A rotating hole 7 is opened in the middle of the side of the filter housing 1. The rotating rod 11 slides through the rotating hole 7. A sealing sleeve 10 for tightly sealing the outer end of the rotating hole 7 is sleeved on the outer end of the rotating rod 11. After the filter has been filtering dust and drying water vapor for a long time, the torsion rod 2 and the rotating rod 11 can be manually rotated frequently to rotate the loosening frame 15 inside the desiccant 9. This allows the loosening frame 15 to rotate and loosen the desiccant 9, keeping it loose and facilitating air circulation inside the filter, thereby improving the drying effect of the desiccant 9 on the air.

[0019] Example 2 Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The diagram shows a dynamic filter for a refrigeration device, including a filter housing 1. Inside the filter housing 1, a filter element assembly is provided. Inside the filter element assembly, a rotation loosening mechanism is installed. At both ends of the filter housing 1, a first connecting pipe 3 is fixed. At the outer end of the first connecting pipe 3, a connecting sleeve 4 is fixed. Inside the connecting sleeve 4, a second connecting pipe 6 is connected for connection with an external pipe. A snap-fit ​​connection mechanism is provided between the second connecting pipe 6 and the connecting sleeve 4.

[0020] The snap-fit ​​connection mechanism includes an installation groove 8 inside the connecting sleeve 4, a sealing gasket 19 bonded to the inner end of the second connecting pipe 6 and abutting against the inner end of the installation groove 8, a groove 17 on the inner end surface of the second connecting pipe 6, and a snap-fit ​​rod 16 hingedly installed inside the groove 17 and whose top end is slidably snapped into the top end inside the installation groove 8. The sealing gasket 19 has a circular structure and is made of elastic rubber material. The groove 17 is located on the outside of the sealing gasket 19, and a hinge post 20 is fixed inside it. The groove 17 has a rectangular groove structure.

[0021] When connecting the filter to the external pipe, the second connecting pipe 6, which serves as the external pipe connector, is inserted into the mounting groove 8 inside the connecting sleeve 4, and the sealing gasket 19 presses against the inside of the mounting groove 8 to maintain a sealed connection.

[0022] The outer end of the snap-fit ​​rod 16 is inclined outward, and its inner end has a hinge hole 21. The snap-fit ​​rod 16 is arranged in a cross shape. The hinge post 20 slides through the hinge hole 21. The inner side of the outer end of the snap-fit ​​rod 16 is connected to a second spring 18. The inner end of the second spring 18 is connected to the inner side of the groove 17. The outer side of the connecting sleeve 4 has a disassembly hole 5, which is connected to the outer side of the mounting groove 8 and is distributed in a cross shape, and is located at the outer top of the snap-fit ​​rod 16.

[0023] The second spring 18 springs the snap-fit ​​rod 16 to rotate out of the groove 17. The outer end of the snap-fit ​​rod 16 slides and snaps into the inner outer end of the mounting groove 8. Therefore, the second connecting pipe 6 and the connecting sleeve 4 can be quickly snapped together. When it is necessary to disassemble, replace and maintain the filter, a tool with a thin strip structure is inserted into the disassembly hole 5 and pushes the snap-fit ​​rod 16 to compress the second spring 18, so that the outer end of the snap-fit ​​rod 16 enters the groove 17, thereby allowing the second connecting pipe 6 to be quickly pulled out, which facilitates the quick disassembly, installation and maintenance of the filter. Working method: A desiccant 9 is installed in the middle of the inside of the filter housing 1, and a metal filter screen 12 is laid on the outside of the desiccant 9. Moreover, a first spring 13 is installed on the outside of the metal filter screen 12 through the connecting frame 14, so that the first spring 13 springs the connecting frame 14 and the metal filter screen 12 to push the two ends of the desiccant 9, keeping the two ends of the desiccant 9 neat and not loose or falling off.

[0024] A loosening frame 15 is installed in the middle of the desiccant 9, and a rotating rod 11 and a torsion rod 2 are fixed at both ends of the loosening frame 15. Therefore, after the filter has been filtering dust and drying water vapor for a long time, the torsion rod 2 and the rotating rod 11 can be manually rotated frequently to rotate the loosening frame 15 inside the desiccant 9, so that the loosening frame 15 rotates and loosens the desiccant 9, keeping the desiccant 9 loose, facilitating air circulation inside the filter, and improving the drying effect of the desiccant 9 on the air.

[0025] Connecting sleeves 4 are fixed at both ends of the filter housing 1 by first connecting pipes 3. When connecting the filter to an external pipe, the second connecting pipe 6, which serves as an external pipe connector, is inserted into the mounting groove 8 inside the connecting sleeve 4, and the sealing gasket 19 is pressed against the inside of the mounting groove 8 to maintain a sealed connection.

[0026] Simultaneously, the second spring 18 springs the locking rod 16 to rotate out of the groove 17, and the outer end of the locking rod 16 slides and engages with the inner outer end of the mounting groove 8. Therefore, the second connecting pipe 6 and the connecting sleeve 4 can be quickly locked and connected. When it is necessary to disassemble, replace and maintain the filter, a tool with a thin strip structure is inserted into the disassembly hole 5 and pushes the locking rod 16 to compress the second spring 18, so that the outer end of the locking rod 16 enters the groove 17, thereby allowing the second connecting pipe 6 to be quickly pulled out, which facilitates the quick disassembly, installation and maintenance of the filter. The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A dynamic filter for a refrigeration device, comprising a filter housing (1), characterized in that: The filter housing (1) is provided with a filter element assembly inside. The filter element assembly is equipped with a rotation loosening mechanism. The filter housing (1) is fixed with a first connecting pipe (3) at both ends. The outer end of the first connecting pipe (3) is fixed with a connecting sleeve (4). The connecting sleeve (4) is connected with a second connecting pipe (6) for connecting with an external pipe. A snap-fit ​​connection mechanism is provided between the second connecting pipe (6) and the connecting sleeve (4). The filter core assembly includes a desiccant (9) tightly packed in the middle of the filter housing (1), a metal filter screen (12) laid at both ends of the desiccant (9), a connecting frame (14) connected to the outside of the metal filter screen (12), and a first spring (13) connected to the outside of the outer end of the connecting frame (14).

2. A dynamic filter for refrigeration equipment according to claim 1, characterized in that: The filter housing (1) is a hollow cylindrical structure, and the outer end of the first spring (13) abuts against one end of the interior of the filter housing (1).

3. A dynamic filter for refrigeration equipment according to claim 1, characterized in that: The rotary loosening mechanism includes a loosening frame (15) for loosening the desiccant (9) which is rotatably installed in the middle of the inside of the desiccant (9), a rotating rod (11) fixed at both ends of the loosening frame (15), and a torsion rod (2) fixed at the outer end of the rotating rod (11).

4. A dynamic filter for refrigeration equipment according to claim 3, characterized in that: The loosening frame (15) is a rectangular frame structure. The filter housing (1) has a rotating hole (7) in the middle of its side. The rotating rod (11) slides through the rotating hole (7). The outer end of the rotating rod (11) is fitted with a sealing sleeve (10) for tightly sealing the outer end of the rotating hole (7).

5. A dynamic filter for refrigeration equipment according to claim 1, characterized in that: The snap-fit ​​connection mechanism includes an installation groove (8) inside the connecting sleeve (4), a sealing gasket (19) bonded to the inner end of the second connecting tube (6) and abutting against the inner end of the installation groove (8), a groove (17) on the inner end surface of the second connecting tube (6), and a snap-fit ​​rod (16) hinged to the inside of the groove (17) and whose top end is slidably snapped into the top end inside the installation groove (8).

6. A dynamic filter for refrigeration equipment according to claim 5, characterized in that: The sealing gasket (19) has a circular structure and is made of elastic rubber material. The groove (17) is located on the outside of the sealing gasket (19), and a hinge post (20) is fixed at its inner end. The groove (17) is a rectangular groove structure.

7. A dynamic filter for refrigeration equipment according to claim 6, characterized in that: The outer end of the snap-fit ​​rod (16) is inclined outward, and the inner end of the snap-fit ​​rod (16) has a hinge hole (21). The snap-fit ​​rod (16) is arranged in a cross shape. The hinge post (20) slides through the hinge hole (21). The inner side of the outer end of the snap-fit ​​rod (16) is connected to a second spring (18). The inner end of the second spring (18) is connected to the inner side of the groove (17).

8. A dynamic filter for refrigeration equipment according to claim 7, characterized in that: The outer side of the connecting sleeve (4) has a disassembly hole (5), which is connected to the outer side of the mounting groove (8) and is distributed in a cross shape, and is located at the outer top of the snap-fit ​​rod (16).

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