Automobile composite filter material convenient to replace

Abstract

The utility model discloses an automobile composite filter material convenient to replace, and relates to the technical field of automobile filter materials, the automobile composite filter material comprises a mounting bottom plate, the top end of the mounting bottom plate is fixedly connected with a mounting seat, the outer side of the top of the mounting seat is covered with a sleeve cover, and the sleeve cover is provided with a plurality of filter holes; a driving magnetic ring, coarse filter cloth, water absorption cloth, activated carbon cloth, a spacing magnetic ring and a bearing convex plate are arranged in the mounting seat at intervals. According to the automobile composite filter material convenient to replace, the filter layer is attracted and fixed through the driving magnetic ring and the three spaced magnetic rings, when many impurity particles deposit on the surface of the filter material and need to be replaced, the sleeve cover only needs to be taken out upwards, and under the magnetic attraction force action of the driving magnetic ring and the three spaced magnetic rings, the filter layer can be replaced conveniently. The three filter layers can be directly taken out of the mounting base at a time only by directly and independently breaking off the spacing magnetic rings and the filter layers, the independent filter layers can be decomposed and replaced, operation is easy and convenient, and the practicability of the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a composite filter material for automobiles which is easy to replace. Background Art

[0002] Nowadays, new energy vehicles are becoming increasingly popular. Among them, hydrogen-powered vehicles have become a research hotspot for governments and major companies due to their outstanding advantages such as low operating temperature, high energy conversion efficiency and environmental friendliness. Hydrogen-powered vehicles use air as an oxidant, and dust particles and harmful gases in the air will damage the efficiency and life of the vehicle's fuel cell engine. Therefore, hydrogen-powered vehicles generally use air filters made of composite filter materials to filter out dust impurities or harmful gases before the air enters the fuel cell.

[0003] Existing automotive air filter media have low oil resistance and tear resistance. In addition, the left and right side bends of the filter media body are not welded to the inner wall of the PP outer frame, resulting in low stable adhesion and shedding.

[0004] In order to overcome the above-mentioned defects, the prior art (Chinese patent with announcement number CN219091455U and application date of 2022-11-30) is a reinforced non-woven composite air filter material. By arranging reinforcing steel wire in the filter material body and arranging a tear-resistant and oil-resistant layer structure on the outer surface of the filter material body, the oil-resistant and tear-resistant stability of the filter material body structure of the automobile air filter is improved; by arranging side panels and a reinforcing support plate structure on both sides of the filter material body, and arranging inner groove structures with adhesive layers on the side panels on both sides, the effective bonding area between the left and right side end bends of the filter material body and the PP outer frame is increased, thereby avoiding the phenomenon of low stable adhesion and falling off caused by the small number of welded parts between the left and right side end bends of the filter material body of the automobile air filter and the inner wall of the PP outer frame;

[0005] Although the above technology can improve the performance of the filter material, during the actual working process of the filter material, as impurities such as particulate matter accumulate on the surface of the filter material, the filter material needs to be replaced regularly. However, the existing filter material is not easy to replace, resulting in inconvenience in use.

[0006] In response to the above problems, it is urgent to carry out innovative design based on the original equipment. Therefore, we have proposed an easy-to-replace composite filter material for automobiles that can well solve the above problems. Utility Model Content

[0007] The purpose of the present utility model is to provide a composite filter material for automobiles that is easy to replace, so as to solve the problem raised in the above-mentioned background technology that during the actual working process of the filter material, as impurities such as particulate matter accumulate on the surface of the filter material, the filter material needs to be replaced regularly, and the existing filter material is not convenient to replace, resulting in inconvenience in use.

[0008] To achieve the above object, the present invention provides the following technical solution: a composite filter material for automobiles that is easy to replace, comprising a mounting base, a mounting seat fixedly connected to the top of the mounting base, a cover covering the top outer side of the mounting seat, and a plurality of filter holes formed on the cover;

[0009] The bottom of the inner wall of the mounting seat is fixedly connected to a load-bearing convex plate, and the interior of the mounting seat is provided with three filter layers, namely, a coarse filter cloth, a water-absorbing cloth, and an activated carbon cloth, from top to bottom. The coarse filter cloth is used to filter larger particles of dust and impurities, the water-absorbing cloth is used to absorb moisture in the air to ensure the dryness of the cavity, and the activated carbon cloth is used to deeply adsorb harmful gases such as nitrogen oxides, NH3, SO2 and H2S in the air. Spacer magnetic rings are provided between the coarse filter cloth, the water-absorbing cloth, the activated carbon cloth and the load-bearing convex plate. A driving magnetic ring is provided on the inner top of the cover. The ring is squeezed and fitted on the top surface of the coarse filter cloth, and the driving magnetic ring and the three adjacent spacing magnetic rings are fixed by magnetic attraction. When there are a lot of impurity particles deposited on the surface of the filter material and it needs to be replaced, it is only necessary to take out the cover upwards. Under the action of the magnetic attraction of the driving magnetic ring and the three spacing magnetic rings, the three filter layers can be directly taken out from the mounting seat at one time, and the individual filter layers can be decomposed and replaced by only breaking off each layer of spacing magnetic rings and filter layers separately. This structure is simple and convenient to operate, and can facilitate regular replacement of the entire filter material or individual filter layers, thereby increasing the practicality of the device.

[0010] Preferably, the three filter layers of the coarse filter cloth, absorbent cloth, and activated carbon cloth are all made of meltblown cloth, and the surface is formed into an uneven pleated design. By adopting meltblown cloth and pleated appearance, and undergoing a series of physical and chemical treatments, not only can the contact area between dust and cloth fibers be increased, that is, the filtration area can be increased, and the physical interception and gravity sedimentation filtration efficiency can be improved, but also the specific surface area is increased, the surface charge of the fiber is increased, the electrostatic adsorption efficiency is increased, and the filtration efficiency and dust holding capacity of particulate matter are improved. Among them, the activated carbon particles in the activated carbon cloth adopt a unique reactivation technology. On the basis of activated carbon, the activated carbon is secondary activated through a special process to adjust the surface group properties of the activated carbon, increase the specific surface area of ​​the activated carbon, and improve the adsorption efficiency and adsorption capacity of the activated carbon for VOCs. In addition, the surface of the secondary activated activated carbon is modified so that a special modifier is adsorbed on the surface of the activated carbon and deposited in the micropores of the activated carbon, thereby improving the adsorption efficiency and adsorption capacity of the activated carbon for harmful gases. The above-mentioned setting makes the filter material have the advantages of short process flow, strong raw material adaptability, simple equipment structure, and good performance stability.

[0011] Preferably, the top and bottom edges of the three filter layers, namely the coarse filter cloth, the absorbent cloth and the activated carbon cloth, are formed with raised portions to prevent the adjacent spaced magnetic rings from squeezing the folds and causing the cloth to deform, thereby affecting the filtering effect. The fold direction of the absorbent cloth in the middle is perpendicular to the coarse filter cloth and the activated carbon cloth, which can increase the distance that dust particles flow through the surface of the filter layer, thereby further improving the physical interception effect and dust holding capacity.

[0012] Preferably, the inner sides of the edges of the coarse filter cloth, absorbent cloth and activated carbon cloth are fixedly connected with a steel wire frame, which is used to stabilize the pleated state of the three filter layers to ensure the filtering effect, and can also be fixed by adjacent spaced magnetic rings, thereby improving the stability of the placement of the three filter layers.

[0013] Preferably, symmetrically distributed limit blocks are fixedly connected to both sides of the steel wire frame, and the limit blocks extend to the outside of both sides of the filter layer. The inner side wall of the mounting seat is provided with four limit grooves equidistantly distributed around the circumference, and the limit blocks slide on the inner sides of the corresponding limit grooves. Through the coordinated arrangement of the limit blocks and the limit grooves, the three filter layers can be easily positioned and placed on the inner side of the mounting seat to ensure the stability of the vertical dislocation distribution state of the absorbent cloth, the coarse filter cloth and the activated carbon cloth.

[0014] Preferably, the driving magnetic ring is movably mounted on the inner top of the cover through an extrusion assembly, and the extrusion assembly includes two fixed rings symmetrically fixedly connected to the inner wall of the top end of the cover, the inner side of the fixed ring is slidingly sleeved with a sliding rod, and a spring is fixedly connected between the top end of the sliding rod and the inner wall of the top end of the cover, and the bottom of the sliding rod passes through the outside of the fixed ring and slides together with the fixed ring on the inner side of the driving magnetic ring. The sliding rod is pushed by the spring to be extruded downward along the inside of the fixed ring, and the driving magnetic ring is also extruded downward synchronously, so that the driving magnetic ring can tightly squeeze the three filter layers and the spacer magnetic ring to prevent the filter layer from being offset and dislocated due to bumpy driving of the car, thereby affecting the filtering effect.

[0015] Preferably, a threaded protrusion is formed on the bottom of the outer wall of the mounting seat, and a matching threaded groove is formed on the bottom of the inner wall of the cover. The threaded protrusion and the threaded groove allow the cover to be threadedly connected to the outside of the mounting seat, thereby further improving the extrusion stability of the internal filter layer.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the composite filter material for automobiles that is easy to replace uses a driving magnetic ring and three spacer magnetic rings to attract and fix the filter layer. When a large amount of impurity particles are deposited on the surface of the filter material and it needs to be replaced, it is only necessary to remove the cover upwards. Under the action of the magnetic attraction of the driving magnetic ring and the three spacer magnetic rings, the three filter layers can be directly removed from the mounting seat at one time. Moreover, it is only necessary to directly break off each spacer magnetic ring and filter layer separately to decompose and replace the individual filter layers. The operation is simple and convenient, which effectively increases the practicality of the device. The specific contents are as follows:

[0017] (1) By distributing the driving magnetic ring, coarse filter cloth, absorbent cloth, activated carbon cloth, spacer magnetic ring and load-bearing convex plate in the mounting seat, when the impurity particles on the surface of the filter material are deposited too much and need to be replaced, it is only necessary to remove the cover upwards. Under the magnetic attraction of the driving magnetic ring and the three spacer magnetic rings, the three filter layers can be directly taken out from the mounting seat at one time. Moreover, it is only necessary to directly break off each spacer magnetic ring and filter layer separately to decompose and replace the individual filter layers. This structure is simple and convenient to operate, and can facilitate the regular replacement of the entire filter material or individual filter layers, thereby increasing the practicality of the device.

[0018] (2) The three filter layers of coarse filter cloth, absorbent cloth and activated carbon cloth are all made of melt-blown cloth, and the surface is formed into an uneven pleated design, which can increase the contact area and specific surface area between dust and cloth fibers, improve the interception and filtration efficiency and dust holding capacity of the filter material. In addition, the activated carbon in the activated carbon cloth adopts a unique reactivation technology and proprietary modification technology, which effectively improves the adsorption efficiency and adsorption capacity of the activated carbon for harmful gases, making this filter material have the advantages of short process flow, strong raw material adaptability, simple equipment structure and good performance stability;

[0019] (3) By arranging a steel wire frame within the three filter layers, the wrinkle state of the filter layers can be stabilized to ensure the filtering effect, and the adjacent spaced magnetic rings can also be attracted and fixed, thereby improving the stability of the placement of the three filter layers. In addition, by sliding between the limit blocks on the steel wire frame and the limit grooves on the mounting seat, the three filter layers can be easily positioned and placed on the inner side of the mounting seat to ensure the stability of the vertical dislocation distribution state of the absorbent cloth, the coarse filter cloth, and the activated carbon cloth;

[0020] (4) By setting up an extrusion component, the driving magnetic ring can be movably installed on the inner top of the cover, and the sliding rod can be pushed downward along the inside of the fixed ring by the spring, and the driving magnetic ring is also squeezed downward synchronously. In this way, the driving magnetic ring can tightly squeeze the three filter layers and the spacer magnetic ring to prevent the filter layers from being offset and misaligned due to bumpy driving of the car, thereby affecting the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the cutaway structure of the present utility model;

[0023] Figure 3 For this utility model Figure 2 A in the middle is an enlarged structural diagram;

[0024] Figure 4 This is a schematic diagram of the explosion structure of the utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the mounting base of the utility model;

[0026] Figure 6 This is a schematic diagram of the exploded structure of the filter cloth and the annular frame of the utility model.

[0027] In the figure: 1. Mounting base; 2. Mounting seat; 3. Cover; 4. Filter hole; 5. Load-bearing convex plate; 6. Coarse filter cloth; 7. Absorbent cloth; 8. Activated carbon cloth; 9. Spacer magnetic ring; 10. Driving magnetic ring; 11. Steel wire frame; 12. Limit block; 13. Limit groove; 14. Fixed collar; 15. Sliding rod; 16. Spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example 1: Please refer to Figures 1-6 The utility model provides the following technical solution: a composite filter material for automobiles that is easy to replace, comprising a mounting base 1, a mounting seat 2 being fixedly connected to the top of the mounting base 1, a cover 3 covering the top outer side of the mounting seat 2, and a plurality of filter holes 4 being formed on the cover 3;

[0030] A load-bearing convex plate 5 is fixedly connected to the bottom of the inner wall of the mounting base 2. The interior of the mounting base 2 is provided with three filter layers, namely, coarse filter cloth 6, water-absorbent cloth 7, and activated carbon cloth 8, from top to bottom. The coarse filter cloth 6 is used to filter larger particles of dust and impurities, the water-absorbent cloth 7 is used to absorb moisture in the air to ensure the dryness of the cavity, and the activated carbon cloth 8 is used to deeply adsorb harmful gases such as nitrogen oxides, NH3, SO2 and H2S in the air. Specifically, the three filter layers of coarse filter cloth 6, water-absorbent cloth 7, and activated carbon cloth 8 are all made of melt-blown cloth, and the surface is formed into an uneven pleated design. By adopting melt-blown cloth and pleated appearance, and undergoing a series of physical and chemical treatments, not only can the contact area between dust and cloth fibers be increased, that is, the filtration area can be increased, physical interception and gravity sedimentation can be improved. The filter efficiency is reduced, and the specific surface area is increased, the surface charge of the fiber is increased, the electrostatic adsorption efficiency is increased, and the filtration efficiency and dust holding capacity of particulate matter are improved. Among them, the activated carbon particles in the activated carbon cloth 8 adopt a unique reactivation technology. On the basis of the activated carbon, the activated carbon is secondary activated through a special process to adjust the surface group properties of the activated carbon, increase the specific surface area of ​​the activated carbon, and improve the adsorption efficiency and adsorption capacity of the activated carbon for VOCs. In addition, the surface of the secondary activated activated carbon is modified so that the special modifier is adsorbed on the surface of the activated carbon and deposited in the micropores of the activated carbon, thereby improving the adsorption efficiency and adsorption capacity of the activated carbon for harmful gases. The above settings make the filter material have the advantages of short process flow, strong raw material adaptability, simple equipment structure and good performance stability.

[0031] The coarse filter cloth 6, the absorbent cloth 7, the activated carbon cloth 8 and the load-bearing convex plate 5 are each provided with a spacer magnetic ring 9 between each two adjacent ones. The inner top of the cover 3 is provided with a driving magnetic ring 10, which is squeezed and fitted on the top surface of the coarse filter cloth 6. The driving magnetic ring 10 and the three spacer magnetic rings 9 are fixed to each other by magnetic attraction. When there are many impurity particles deposited on the surface of the filter material and it needs to be replaced, it is only necessary to take out the cover 3 upwards. Under the action of the magnetic attraction of the driving magnetic ring 10 and the three spacer magnetic rings 9, the three filter layers can be directly taken out from the mounting seat 2 at one time, and it is only necessary to directly break off each layer of spacer magnetic ring 9 and the filter layer separately to decompose and replace the individual filter layer. This structure is simple and convenient to operate, and can facilitate regular replacement of the entire filter material or individual filter layers, thereby increasing the practicality of the device.

[0032] The top and bottom edges of the three filter layers, the coarse filter cloth 6, the absorbent cloth 7, and the activated carbon cloth 8, are all formed with raised portions to prevent the adjacent spacer magnetic rings 9 from squeezing the folds and causing the cloth to deform, thereby affecting the filtering effect. The fold direction of the absorbent cloth 7 in the middle is perpendicular to the coarse filter cloth 6 and the activated carbon cloth 8. This can increase the distance that dust particles flow through the surface of the filter layer, thereby further improving the physical interception effect and dust holding capacity.

[0033] In addition, the inner sides of the edges of the coarse filter cloth 6, the absorbent cloth 7 and the activated carbon cloth 8 are fixedly connected with a steel wire frame 11. The steel wire frame 11 is used to stabilize the pleated state of the three filter layers to ensure the filtering effect, and can also be fixed by the adjacent spaced magnetic rings 9, thereby improving the stability of the placement of the three filter layers. In addition, symmetrically distributed limit blocks 12 are fixedly connected to both sides of the steel wire frame 11. The limit blocks 12 pass through the outside of both sides of the filter layer, and the inner side wall of the mounting seat 2 is provided with four limit grooves 13 distributed equidistantly around the circumference. The limit blocks 12 slide on the inner sides of the corresponding limit grooves 13. Through the coordination of the limit blocks 12 and the limit grooves 13, the three filter layers can be easily positioned and placed on the inner side of the mounting seat 2 to ensure the stability of the vertically displaced distribution state of the absorbent cloth 7, the coarse filter cloth 6 and the activated carbon cloth 8.

[0034] Example 2:

[0035] On the basis of embodiment 1, the driving magnetic ring 10 is movably installed on the inner top of the cover 3 through an extrusion assembly. The extrusion assembly includes two fixed rings 14 symmetrically fixedly connected to the inner wall of the top end of the cover 3. The inner side of the fixed ring 14 is slidably sleeved with a sliding rod 15. A spring 16 is fixedly connected between the top of the sliding rod 15 and the inner wall of the top end of the cover 3. The bottom of the sliding rod 15 passes through the outside of the fixed ring 14 and slides together with the fixed ring 14 on the inner side of the driving magnetic ring 10. The sliding rod 15 is pushed downward by the spring 16 along the inside of the fixed ring 14 to be extruded and moved, and the driving magnetic ring 10 is also extruded downward synchronously. In this way, the driving magnetic ring 10 can tightly squeeze the three filter layers and the spacer magnetic ring 9 to prevent the filter layer from being offset and dislocated due to bumpy driving of the car, thereby affecting the filtering effect.

[0036] In addition, a threaded protrusion is formed at the bottom of the outer wall of the mounting seat 2, and a matching threaded groove is formed at the bottom of the inner wall of the cover 3. The threaded protrusion and the threaded groove allow the cover 3 to be threadedly connected to the outside of the mounting seat 2, thereby further improving the extrusion stability of the internal filter layer.

[0037] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A composite filter material for automobiles that is easy to replace, comprising a mounting base (1), the top of the mounting base (1) being fixedly connected to a mounting seat (2), the top outer side of the mounting seat (2) being covered with a cover (3), and the cover (3) being provided with a plurality of filter holes (4); Its characteristics are: The bottom of the inner wall of the mounting seat (2) is fixedly connected with a load-bearing convex plate (5), and the interior of the mounting seat (2) is provided with three filter layers, namely, a coarse filter cloth (6), a water-absorbing cloth (7), and an activated carbon cloth (8), from top to bottom. Spacer magnetic rings (9) are provided between each of the coarse filter cloth (6), the water-absorbing cloth (7), the activated carbon cloth (8) and the load-bearing convex plate (5). A driving magnetic ring (10) is provided at the top end of the inner wall of the cover (3). The driving magnetic ring (10) is pressed and fitted on the top surface of the coarse filter cloth (6), and the driving magnetic ring (10) and the three spacer magnetic rings (9) are fixed to each other by magnetic attraction.

2. The easily replaceable composite filter material for automobiles according to claim 1, characterized in that: The three filter layers of the coarse filter cloth (6), the water-absorbing cloth (7) and the activated carbon cloth (8) are all made of melt-blown cloth, and the surface is formed into an uneven pleated design.

3. The easily replaceable composite filter material for automobiles according to claim 2, characterized in that: The top and bottom edges of the three filter layers, namely the coarse filter cloth (6), the water absorbent cloth (7) and the activated carbon cloth (8), are all formed with raised portions, and the fold direction of the water absorbent cloth (7) located in the middle is perpendicular to the coarse filter cloth (6) and the activated carbon cloth (8).

4. The easily replaceable composite filter material for automobiles according to claim 3, characterized in that: The inner sides of the edges of the coarse filter cloth (6), the water-absorbing cloth (7) and the activated carbon cloth (8) are all fixedly connected with a steel wire frame (11).

5. The easily replaceable composite filter material for automobiles according to claim 4, characterized in that: The two sides of the steel wire frame (11) are fixedly connected with symmetrically distributed limit blocks (12), and the limit blocks (12) penetrate to the outside of the two sides of the filter layer. The inner side wall of the mounting seat (2) is provided with four limit grooves (13) distributed at equal intervals around the circumference, and the limit blocks (12) slide on the inner sides of the corresponding limit grooves (13).

6. The easily replaceable composite filter material for automobiles according to claim 1, characterized in that: The driving magnetic ring (10) is movably installed on the inner top of the cover (3) through an extrusion assembly. The extrusion assembly includes two fixed rings (14) symmetrically fixedly connected to the inner wall of the top end of the cover (3). The inner side of the fixed ring (14) is slidably sleeved with a sliding rod (15). A spring (16) is fixedly connected between the top end of the sliding rod (15) and the inner wall of the top end of the cover (3). The bottom of the sliding rod (15) passes through the outside of the fixed ring (14) and slides together with the fixed ring (14) on the inner side of the driving magnetic ring (10).

7. The easily replaceable composite filter material for automobiles according to claim 6, characterized in that: The bottom of the outer wall of the mounting seat (2) is formed with a threaded protrusion, and the bottom of the inner wall of the cover (3) is formed with a matching threaded groove.

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