Refrigerant filtering device for automobile thermal management integrated module
By designing a detachable plug and skeleton structure, the problem of inconvenient cleaning and replacement of refrigerant filter devices in the prior art is solved, the filtration effect and sealing are improved, and the service life of the device is extended.
Patent Information
- Application Number
- CN202421066796.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-05-16
AI Technical Summary
The refrigerant filter device of the existing automotive thermal management integrated module is inconvenient in cleaning and replacement, resulting in clogging of the filter net, large flow resistance, degradation of the refrigerant performance, and easy tear of the filter net.
A refrigerant filter device including a plug and a hollow frame is designed. The plug and the side valve plate are connected by external threads. The filter mesh cloth covers all openings. The filter mesh cloth is detachable by using the disassembly structure of the card block and the convex ribs. Easy to replace, the skeleton is integrally formed with the filter cloth to enhance support and prevent tear.
It improves the filtering effect and sealing, simplifies the cleaning and replacement process of the filter, extends the service life of the device, and avoids filter clogging and tearing problems.
Smart Images
Figure CN222364196U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of filtering devices, in particular to a refrigerant filtering device used for an automobile thermal management integrated module. Background Art
[0002] In the refrigerant system of the thermal management of new energy vehicle air conditioning, there are moving parts such as electronic expansion valves. In order to provide these moving parts with a good operating environment, reduce wear, prevent functional failure, and ensure sealing, it is necessary to set a filtering device in the refrigerant fluid channel to intercept various impurities that may exist in the system to ensure the cleanliness level of the system environment after filtration.
[0003] In the refrigerant system, various harmful substances can enter the refrigerant fluid channel through different ways, such as the entry of dust during production or maintenance, and the influence of solid impurities when charging refrigerant or refrigeration oil. The presence of these substances may seriously threaten or damage the moving parts in the system, reduce the performance and reliability of the refrigerant system, and therefore need to be removed in time.
[0004] The material of the refrigerant side valve plate of the thermal management integrated module is aluminum alloy. The machining process will generate a lot of metal debris, cutting fluid and other pollution. These conductive pollutants will remain on the shell surface or structural gaps. Generally, multiple ultrasonic cleaning is used to generate mechanical vibration and oscillation on the cleaned parts through the propagation of liquid, which accelerates the stripping of oil and particles from the surface of the parts, but there may still be a situation where the cleanliness does not meet the requirements.
[0005] The electronic expansion valve controls the movement of the valve core through electromagnetic force. If there are impurities near the valve core, the valve core will be stuck and unable to respond to control requirements in time, or even unable to move and completely stuck. Placing a filter in front of the electronic expansion valve can isolate impurities in the filter medium, including foreign matter entering from the outside, debris generated by wear of moving parts, burrs originally attached to the surface of machined parts, and other large or small, hard or soft substances.
[0006] In addition, when impurities are adsorbed on the surface of the filter, most of the mesh holes are blocked, and the flow resistance of the refrigerant through the filter is large, the flow rate is reduced, and the cooling capacity of the refrigerant is insufficient. Impurities adsorbed on the surface of the filter will greatly increase the pressure load applied to the filter, and the filter may be torn, so it is necessary to remove impurities on the filter in time to ensure the normal operation of the refrigerant system. However, the current filter is directly embedded in the side valve plate product, which makes it inconvenient to clean or replace the filter. Utility Model Content
[0007] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a refrigerant filter device for an automotive thermal management integrated module to solve the technical problem of inconvenient cleaning and replacement of the filter in the thermal management system in the prior art.
[0008] In order to solve the above technical problems, the utility model provides a refrigerant filtering device for an automotive thermal management integrated module, including a plug and a hollow frame, the plug is provided with a connecting structure for detachably connecting to a refrigerant side valve plate, a mounting groove is provided at the bottom end of the plug, a convex rib is provided on the inner wall of the mounting groove, a clamping block is provided at the top end of the frame, the clamping block is clamped with the convex rib, a plurality of first openings are provided on the side wall of the frame, a second opening is provided at the bottom end of the frame, an annular closed filter mesh cloth is connected circumferentially inside the frame and the filter mesh cloth covers all the first openings, a first sealing ring and a second sealing ring are connected to the plug and the frame respectively, and the first sealing ring and the second sealing ring are respectively located above and below the filter mesh cloth.
[0009] After adopting the above structure, the utility model has the following advantages for a refrigerant filter device for an automotive thermal management integrated module: when in use, the refrigerant enters from the first opening and is filtered by the filter cloth and then flows out from the second opening, or the refrigerant enters from the second opening and is filtered by the filter cloth and then flows out from the first opening; since the filter cloth covers all the first openings, the refrigerant can only flow out after passing through the filter cloth, thereby improving the filtering effect; and the first sealing ring arranged between the plug and the refrigerant side valve plate improves the sealing performance to prevent the refrigerant from leaking, and the second sealing ring arranged between the frame and the refrigerant side valve plate prevents It can prevent the filtered refrigerant from flowing back from between the frame and the refrigerant side valve plate, and can also prevent the unfiltered refrigerant from flowing out from between the frame and the refrigerant side valve plate; the plug realizes the detachable connection between the filter device and the refrigerant side valve plate through the connecting structure, the filter mesh cloth is connected to the frame, and the frame and the plug are detachably connected through the block and the convex rib. When it is necessary to clean the filter mesh cloth, the plug and the frame can be directly removed from the refrigerant side valve plate, or the frame and the filter mesh cloth can be further removed from the plug to replace the new frame and filter mesh cloth, making it more convenient to clean and replace the filter mesh cloth in the filter device.
[0010] As an improvement, the cross-section of the plug is circular, and the connection structure is an external thread provided on the outer peripheral wall of the plug; with this structure, the external thread is connected to the refrigerant side valve plate thread, which has a simple structure and is easy to connect.
[0011] As an improvement, a hexagonal hole is provided at the top of the plug; this structure makes it easy to rotate the plug using a special tool, making disassembly and installation more convenient.
[0012] As an improvement, the convex rib is an annular closed structure, with a number of clamping blocks and the blocks being evenly distributed along the circumferential direction; with this structure, a number of clamping blocks are provided to make the connection between the plug and the frame more stable, and the convex rib of the annular closed structure can increase the strength of the plug.
[0013] As an improvement, the card block includes a connecting part and a clamping part, the connecting part is connected to the top of the frame, the clamping part is connected to the outer side wall of the connecting part, and the bottom end of the clamping part is against the top of the convex rib; with this structure, the card block is inserted upward into the installation groove, and during the insertion process, the clamping part is affected by the convex rib so that the card block as a whole is deformed inward, until the clamping part is higher than the convex rib, the card block as a whole recovers its deformation outward so that the card block is clamped with the convex rib. When disassembling, the card block is also moved downward, and the clamping part is affected by the convex rib so that the card block as a whole is deformed inward, until the clamping part is separated from the convex rib, the separation of the frame and the plug is achieved.
[0014] As an improvement, an inclined surface is provided between the upper end surface of the clamping portion and the outer side wall; with this structure, the inclined surface plays a guiding role, and when the clamping block is connected to the convex rib, the auxiliary clamping block is deformed inwardly, making the connection more convenient.
[0015] As an improvement, the skeleton includes a top plate, a bottom plate and a number of connecting columns, the upper and lower ends of the connecting columns are respectively connected to the top plate and the bottom plate, the connecting columns are equidistantly distributed along the circumferential direction, the filter mesh is connected to the inside of the connecting columns, a first opening is formed between the connecting columns, and a through hole is provided on the bottom plate to form a second opening; with this structure, the skeleton provides support for the filter mesh to prevent the formation of a large impact force when the refrigerant flow rate is large, causing the mesh to tear and be damaged, resulting in no filtering effect.
[0016] As an improvement, a first annular groove is circumferentially provided on the outer peripheral wall of the plug, and the first sealing ring is connected in the first annular groove.
[0017] As an improvement, a second annular groove is provided on the outer peripheral wall of the skeleton along the circumferential direction, and the second sealing ring is connected in the second annular groove.
[0018] As an improvement, the frame and the filter cloth are integrally formed. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a cross-sectional view of the utility model.
[0020] Figure 2 It is a three-dimensional structural schematic diagram of the utility model.
[0021] Figure 3 It is a cross-sectional view of the connection between the filter device of the utility model and the refrigerant side valve plate.
[0022] Figure numerals: 1. plug; 2. frame; 21. top plate; 22. bottom plate; 23. connecting column; 3. mounting groove; 4. convex rib; 5. clamping block; 51. connecting part; 52. clamping part; 6. first opening; 7. second opening; 8. filter cloth; 9. first sealing ring; 10. second sealing ring; 11. hexagonal hole; 12. inclined surface; 13. first annular groove; 14. second annular groove; 15. refrigerant side valve plate. DETAILED DESCRIPTION
[0023] The following is a detailed description of a refrigerant filtering device for an automotive thermal management integrated module according to the present invention in conjunction with the accompanying drawings.
[0024] like Figures 1 to 3 As shown, a refrigerant filter device for an automotive thermal management integrated module comprises a plug 1 and a hollow frame 2, the cross section of the frame 2 is circular, the plug 1 is provided with a connection structure for detachably connecting with a refrigerant side valve plate 15, the cross section of the plug 1 is circular, the connection structure is an external thread provided on the outer peripheral wall of the plug 1, the top of the plug 1 is provided with a hexagonal hole 11, and the connection structure between the plug 1 and the refrigerant side valve plate 15 is as shown in FIG. Figure 3 shown.
[0025] like Figure 1 As shown, a mounting groove 3 is provided at the bottom end of the plug 1, a convex rib 4 is provided on the inner wall of the mounting groove 3, a clamping block 5 is provided at the top end of the frame 2, the clamping block 5 is clamped with the convex rib 4, and the top end of the frame 2 also abuts against the bottom end of the plug 1; the convex rib 4 in this embodiment is an annular closed structure, the number of the clamping blocks 5 is several and the several clamping blocks 5 are equidistantly distributed along the circumferential direction; the clamping blocks 5 all include a connecting portion 51 and a clamping portion 52, the connecting portion 51 is connected to the top end of the frame 2, the clamping portion 52 is connected to the outer side wall of the connecting portion 51, and the bottom end of the clamping portion 52 abuts against the top end of the convex rib 4; in addition, an inclined surface 12 is provided between the upper end surface and the outer side wall of the clamping portion 52, when the clamping block 5 abuts against the convex rib 4, the inclined surface 12 first abuts against the convex rib 4 to cause the clamping block 5 to deform inwardly, and after the clamping portion 52 is higher than the convex rib 4, the clamping block 5 recovers its deformation and abuts against the convex rib 4.
[0026] like Figure 1 and Figure 2As shown, the side wall of the skeleton 2 is provided with a plurality of first openings 6, the bottom end of the skeleton 2 is provided with a second opening 7, an annular closed filter mesh cloth 8 is connected to the inside of the skeleton 2 along the circumferential direction, and the filter mesh cloth 8 covers all the first openings 6; the skeleton 2 includes a top plate 21, a bottom plate 22 and a plurality of connecting columns 23, the cross-sections of the top plate 21 and the bottom plate 22 are both circular, the upper and lower ends of the plurality of connecting columns 23 are respectively connected to the top plate 21 and the bottom plate 22, and the plurality of connecting columns 23 are equidistantly distributed along the circumferential direction, the filter mesh cloth 8 is connected to the inside of the plurality of connecting columns 23, and the first opening 6 is formed between the plurality of connecting columns 23, and a through hole is provided on the bottom plate 22 to form the second opening 7; wherein, the plug 1 and the filter mesh cloth 8 in this embodiment are both made of metal, while the skeleton 2 is made of plastic, and the filter mesh cloth 8 and the skeleton 2 are integrally injection molded, and the skeleton 2 can provide support for the filter mesh cloth 8 to prevent the formation of a large impact force when the refrigerant flow rate is large, causing the filter mesh cloth 8 to tear and be damaged, and thus failing to filter. According to different requirements of the application environment, the metal filter cloth 8 is a filter with a certain mesh number to balance the filtering efficiency and pressure loss. The metal filter cloth 8 has a large flow rate, small resistance, reliable function, and is easy to clean. In addition, the skeleton 2 also includes a ring-shaped closed reinforcement ring (not shown in the figure), which is connected to each connecting column 23.
[0027] like Figure 1 As shown, the first sealing ring 9 and the second sealing ring 10 are respectively connected to the plug 1 and the skeleton 2, and the first sealing ring 9 and the second sealing ring 10 are respectively located above and below the filter cloth 8; a first annular groove 13 is circumferentially provided on the outer peripheral wall of the plug 1, and the first sealing ring 9 is connected in the first annular groove 13; a second annular groove 14 is circumferentially provided on the outer peripheral wall of the skeleton 2, and the second sealing ring 10 is connected in the second annular groove 14, wherein the second annular groove 14 is arranged on the bottom plate 22.
[0028] like Figure 3As shown, when in use, the refrigerant enters from the first opening 6 and is filtered by the filter cloth 8 and then flows out from the second opening 7, or the refrigerant enters from the second opening 7 and is filtered by the filter cloth 8 and then flows out from the first opening 6. Since the filter cloth 8 covers all the first openings 6, the refrigerant can only flow out after passing through the filter cloth 8, thereby improving the filtering effect. In addition, the first sealing ring 9 and the threaded sealing provided between the plug 1 and the refrigerant side valve plate 15 improve the sealing performance to prevent the refrigerant from leaking. The second sealing ring 10 between the frame 2 and the refrigerant side valve plate 15 prevents the filtered refrigerant from leaking out from the frame 2 and the refrigerant side valve plate 15. Backflow between the valve plates 15 can also prevent unfiltered refrigerant from flowing out from between the skeleton 2 and the refrigerant side valve plate 15; the plug 1 realizes the detachable connection between the filter device and the refrigerant side valve plate 15 through the connecting structure, the filter mesh 8 is connected to the skeleton 2, and the skeleton 2 is detachably connected to the plug 1 through the block 5 and the convex rib 4. When it is necessary to clean the filter mesh 8, the plug 1 and the skeleton 2 can be directly removed from the refrigerant side valve plate 15, or the skeleton 2 and the filter mesh 8 can be further removed from the plug 1 to replace the new skeleton 2 and the filter mesh 8, so that the cleaning and replacement of the filter mesh 8 in the filter device is more convenient.
[0029] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned one implementation mode, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.
Claims
1. A refrigerant filter device for an automotive thermal management integrated module, characterized in that: The invention comprises a plug (1) and a hollow frame (2), wherein the plug (1) is provided with a connection structure for detachably connecting with a refrigerant side valve plate (15), the bottom end of the plug (1) is provided with a mounting groove (3), the inner wall of the mounting groove (3) is provided with a convex rib (4), the top end of the frame (2) is provided with a clamping block (5), the clamping block (5) is clamped with the convex rib (4), the side wall of the frame (2) is provided with a plurality of first openings (6), the bottom end of the frame (2) is provided with a second opening (7), an annular closed filter mesh (8) is connected to the frame (2) along the circumferential direction, and the filter mesh (8) covers all the first openings (6), the plug (1) and the frame (2) are respectively connected with a first sealing ring (9) and a second sealing ring (10), the first sealing ring (9) and the second sealing ring (10) are respectively located above and below the filter mesh (8).
2. The refrigerant filter device for an automotive thermal management integrated module according to claim 1, characterized in that: The plug (1) has a circular cross-section, and the connection structure is an external thread provided on the outer peripheral wall of the plug (1).
3. The refrigerant filter device for an automotive thermal management integrated module according to claim 2, characterized in that: The top end of the plug (1) is provided with a hexagonal hole (11).
4. The refrigerant filter device for an automotive thermal management integrated module according to claim 1, characterized in that: The convex rib (4) is an annular closed structure, and the number of the clamping blocks (5) is a plurality and the plurality of the clamping blocks (5) are equidistantly distributed along the circumferential direction.
5. The refrigerant filter device for an automotive thermal management integrated module according to claim 4, characterized in that: The clamping block (5) comprises a connecting portion (51) and a clamping portion (52), wherein the connecting portion (51) is connected to the top end of the frame (2), the clamping portion (52) is connected to the outer side wall of the connecting portion (51), and the bottom end of the clamping portion (52) abuts against the top end of the convex rib (4).
6. The refrigerant filter device for an automotive thermal management integrated module according to claim 5, characterized in that: An inclined surface (12) is provided between the upper end surface of the clamping portion (52) and the outer side wall.
7. The refrigerant filter device for an automotive thermal management integrated module according to claim 1, characterized in that: The skeleton (2) comprises a top plate (21), a bottom plate (22) and a plurality of connecting columns (23); the upper and lower ends of the plurality of connecting columns (23) are respectively connected to the top plate (21) and the bottom plate (22); the plurality of connecting columns (23) are equidistantly distributed along the circumferential direction; the filter mesh (8) is connected to the inside of the plurality of connecting columns (23); the first opening (6) is formed between the plurality of connecting columns (23); and the bottom plate (22) is provided with a through hole to form the second opening (7).
8. The refrigerant filter device for an automotive thermal management integrated module according to claim 1, characterized in that: A first annular groove (13) is provided on the outer peripheral wall of the plug (1) along the circumferential direction, and the first sealing ring (9) is connected in the first annular groove (13).
9. The refrigerant filter device for an automotive thermal management integrated module according to claim 1, characterized in that: A second annular groove (14) is provided on the outer peripheral wall of the frame (2) along the circumferential direction, and the second sealing ring (10) is connected in the second annular groove (14).
10. The refrigerant filter device for an automotive thermal management integrated module according to claim 1, characterized in that: The skeleton (2) and the filter cloth (8) are integrally formed.