CN216703759U

CN216703759U - Filter core, filter, vehicle air conditioner and engineering machinery

Info

Publication number: CN216703759U
Application number: CN202220005058.5U
Authority: CN
Inventors: 刘丰
Original assignee: Shanghai Sany Heavy Machinery Co Ltd
Current assignee: Shanghai Sany Heavy Machinery Co Ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-06-10
Anticipated expiration: 2032-01-04

Abstract

The utility model provides a filter element, a filter, an air conditioner for a vehicle and engineering machinery. The filter element body comprises a bending part and a flat plate part arranged on the periphery of the bending part; the folded edge part is arranged at the outer edge of the flat plate part; one side of the edge folding part is convexly arranged on the flat plate part to form a convex part, and the other side of the edge folding part is inwards sunken from the flat plate part to form a concave part. When the filter element is used, the filter element is arranged on a bottom plate of a cab, the pressing plate is pressed on the filter element, the convex part of the filter element is inserted into the sealing groove on the pressing plate or the bottom plate, the convex part and the sealing groove form sealing fit, the sealing flange on the pressing plate or the bottom plate is inserted into the concave part of the filter element, and the concave part and the sealing flange are in sealing fit. Because the filter element is provided with the edge which is provided with the edge folding part, the filter element and the bottom plate, and the filter element and the pressure plate form curved surface contact seal or several sections of bent surface seal, the sealing area and the dust entering path are increased, and the sealing effect of the contact position of the filter element, the bottom plate and the pressure plate is effectively ensured.

Description

Filter core, filter, vehicle air conditioner and engineering machinery

Technical Field

The utility model relates to the technical field of filters, in particular to a filter element, a filter, an air conditioner for a vehicle and engineering machinery.

Background

The vehicle air conditioner filter is arranged in the air conditioner air duct, plays a role in filtering dust and sundries and achieves the purpose of purifying the air in the cab. Current automobile-used buckle formula filter of moulding plastics includes filter core and clamp plate, and the filter core of current structure includes kink and integrated into one piece in the flat plate portion of the portion periphery of bending, and flat plate portion bonds and forms overall structure at the clamp plate back, is equipped with the buckle on the clamp plate, is equipped with the draw-in groove on the driver's cabin bottom plate, and the overall structure who cooperates with clamp plate and filter paper through buckle and draw-in groove is installed on the bottom plate.

The clamp plate is with the filter core crimping on the bottom plate, and the filter core forms face seal for plane contact with the clamp plate, and filter paper forms face seal for plane contact with the bottom plate, and plane seal's sealed face is less relatively to sealed face only has one, and the dust gets into the route weak point, and when this sealed face became invalid, inside dust etc. got into the filter through this face easily, sealed effect can't be guaranteed. The sealing effect between the filter paper and the bottom plate and between the filter paper and the pressing plate is poor; meanwhile, the pressing plate is generally of a rectangular frame structure, the buckles are only arranged on two sides of the pressing plate, and the buckles on two sides can not completely compress the pressing plate on the bottom plate in the circumferential direction, so that poor sealing is caused between the pressing plate and the bottom plate.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to solve the technical problem of overcoming the defect of poor sealing effect caused by plane contact between the filter element and the pressure plate and between the filter element and the bottom plate to form surface sealing in the prior art.

Therefore, the utility model provides a filter element, which comprises a filter element body and a folding part, wherein the filter element body comprises the folding part and a flat plate part arranged on the periphery of the folding part; the folded edge part is arranged at the outer edge of the flat plate part; one side of the edge folding part is convexly arranged on the flat plate part to form a convex part, and the other side of the edge folding part is inwards sunken by the flat plate part to form a concave part.

Optionally, in the filter element described above, the protrusion and/or the recess are annular.

Optionally, in the filter element described above, the outer edge of the flat plate portion is folded to form the hem portion.

Optionally, in the filter element described above, a first end surface of the flange portion, which is away from the flat plate portion, is flush with the bottom surface of the flat plate portion.

Optionally, in the filter element described above, a cross section of the recess along a groove depth direction of the recess is rectangular.

The utility model provides a filter, comprising

A filter element according to any one of the preceding claims;

the middle part of the bottom plate is inwards concave to form an accommodating part for accommodating the filter element; the accommodating part is provided with a sealing flange or a sealing groove;

the side, facing the filter element, of the pressing plate is provided with a sealing groove or a sealing flange; the bulge is inserted into the sealing groove and is in sealing fit with the sealing groove; the sunken part supplies the sealing flange is pegged graft, the sunken part with sealing flange seal fit.

Optionally, in the filter described above, the bottom plate is provided with a clamping portion; the pressing plate is provided with a matching portion matched with the clamping portion, and the clamping portion is matched with the matching portion in a clamping mode so as to install the pressing plate on the bottom plate.

Optionally, in the filter described above, the matching portion includes at least two clamping grooves disposed on an outer wall of the pressing plate, and the at least two clamping grooves are arranged at intervals along a depth direction of the accommodating portion; the clamping portion is convexly arranged on the inner wall of the accommodating portion.

The utility model provides a vehicle air conditioner, which comprises the filter.

The utility model provides engineering machinery comprising the vehicle air conditioner.

The technical scheme of the utility model has the following advantages:

1. when the filter element provided by the utility model is used, the filter element is arranged on a bottom plate of a cab, the pressing plate is pressed on the filter element, the convex part of the filter element is inserted into the sealing groove on the pressing plate or the bottom plate, the convex part and the sealing groove form sealing fit, the sealing flange on the pressing plate or the bottom plate is inserted into the concave part of the filter element, and the concave part and the sealing flange are in sealing fit. Because the filter core is equipped with the hem portion on the edge, hem portion can be the arbitrary shape of buckling such as the right angle is bent or the curved surface is bent, forms curved surface contact seal or several sections curved surface seal of buckling between filter core and the bottom plate, filter core and the clamp plate, has increased sealed area and dust and has got into the route, effectively guarantees the sealed effect of filter core and bottom plate and clamp plate contact position.

2. According to the filter element provided by the utility model, the convex part and/or the concave part are annular, and the sealing effect is good. The hem portion integrated into one piece is on the pallet portion, and pallet portion outer fringe turns over and forms hem portion, and the filter core is structure as an organic whole, effectively guarantees its sealed and filter effect. The first end face of hem portion keeping away from the plat plate portion is the parallel and level with the bottom surface of plat plate portion, and filter core sealing performance is good.

3. According to the filter element provided by the utility model, the section of the concave part along the groove depth direction is rectangular. The edge folding part is provided with three right angle parts which are sequentially connected and mutually perpendicular, the bending angle of the edge folding part is large, the bending paths are multiple, the sealing area is large, and the sealing effect is good; at hem portion edges and corners, hem portion forms line seal with bottom plate and clamp plate, and the sealed effect of line seal is superior to face seal to further improve the sealed effect of filter core.

4. According to the filter provided by the utility model, the pressing plate is clamped and matched with the bottom plate, the pressing plate is convenient to mount and dismount, the filter element is convenient to replace, and the replacement efficiency of the filter element is improved. The joint portion can cooperate with different draw-in grooves to change the clearance of clamp plate and bottom plate opposite face, this clearance is used for holding the flat plate portion of filter core, and the clearance is different, the installation of adaptable different thickness filter core.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is an exploded view of a filter provided in embodiment 2 of the present invention;

fig. 2 is a schematic view of a cartridge provided in example 1 of the present invention;

FIG. 3 is a partial schematic view of a recess of a filter cartridge;

FIG. 4 is a schematic view of the base plate of FIG. 1;

FIG. 5 is a schematic view of the platen of FIG. 1;

fig. 6 is a partial sectional view of a filter provided in embodiment 2 of the present invention.

Description of reference numerals:

1-a filter element; 111-bending part; 112-a flat plate portion; 12-a hem portion; 121-a boss; 122-a recess; 2-a bottom plate; 21-a housing; 22-sealing flange; 23-a clamping part; 3, pressing a plate; 31-sealing the groove; 32-mating portion.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

The present embodiment provides a cartridge, as shown in fig. 1-3 and 6, which includes a cartridge body and a hem portion 12. The filter element body comprises a bending part 111 and a flat plate part 112 arranged on the periphery of the bending part 111; the hem part 12 is arranged at the outer edge of the flat plate part 112; the flange 12 is formed to have one side protruding from the flat plate 112 to form a protrusion 121 and the other side recessed from the flat plate 112 to form a recess 122.

When the filter element 1 with the structure is used, the filter element is arranged on the cab bottom plate 2, the pressing plate 3 is pressed on the filter element 1, the convex part 121 of the filter element 1 is inserted into the sealing groove 31 on the pressing plate 3 or the bottom plate 2, the convex part 121 and the sealing groove 31 form sealing fit, the sealing flange 22 on the pressing plate 3 or the bottom plate 2 is inserted into the concave part 122 of the filter element 1, and the concave part 122 and the sealing flange 22 are in sealing fit. Because the filter core 1 is equipped with the hem portion 12 on the edge, hem portion 12 can be the arbitrary shape of buckling such as the right angle is bent or the curved surface is bent, forms curved surface contact seal or several sections are buckled between filter core 1 and bottom plate 2, filter core 1 and the clamp plate 3 and are sealed, has increased sealed area and dust and has got into the route, effectively guarantees the sealed effect of filter core 1 and bottom plate 2 and clamp plate 3 contact position.

Further, referring to fig. 2 and 3, the protrusion 121 and/or the recess 122 are annular. For example, the protrusion 121 and the recess 122 are both annular, the cartridge 1 has a rectangular outline, and the protrusion 121 and the recess 122 are both rectangular annular. The convex part 121 and the concave part 122 are arranged around the filter element 1 for a circle, and the sealing effect is good. As a modification, the flange 12 may be provided separately from the flat plate portion 112, and the protrusion 121 or the recess 122 may be annular, so long as one surface of the flat plate portion 112 is provided with an annular protrusion or recess, which can improve the sealing effect of the filter element on that surface.

One side of the hem portion 12 facing the hem portion 111 is provided with a protrusion 121, one side of the hem portion 12 facing away from the hem portion 111 is provided with a recess 122, namely, the matched side of the hem portion 12 and the bottom plate 2 is provided with the recess 122, and the matched side of the hem portion 12 and the pressing plate 3 is provided with the protrusion 121. Correspondingly, the bottom plate 2 is provided with a sealing flange 22, and the pressure plate 3 is provided with a sealing groove 31. Optimally, the convex part 121 and the concave part 122 are arranged correspondingly, the concave part 122 is arranged on the back of the convex part 121, the folded edge part 12 is integrally formed on the flat plate part 112, the outer edge of the flat plate part 112 is folded to form the folded edge part 12, and the filter element 1 is of an integral structure, so that the sealing and filtering effects of the filter element are effectively guaranteed. As a modification, the protrusion 121 and the recess 122 may be disposed in a staggered manner, such as the protrusion 121 is disposed inside the recess 122, as long as the sealing flange 22 is located corresponding to the recess 122 to be in sealing engagement with the recess 122, and the sealing groove 31 is located corresponding to the protrusion 121 to be in sealing engagement with the protrusion 121.

Referring to fig. 6, a first end surface of the folded edge portion 12 away from the flat plate portion 112 is flush with the bottom surface of the flat plate portion 112, that is, in fig. 6, the bottom surface of the folded edge portion 12 on the right side of the sealing flange 22 is flush with the bottom surface of the flat plate portion 112, and after the filter element 1 is installed, the bottom surface of the flat plate portion 112 and the first end surface of the folded edge portion 111 are both abutted to the bottom plate 2, so that the sealing effect is good.

Alternatively, referring to fig. 6, the recess 122 has a rectangular cross section along the groove depth direction thereof. The edge folding part 12 is provided with three right-angle parts which are sequentially connected and mutually vertical, the bending angle of the edge folding part 12 is large, the bending paths are multiple, the sealing area is large, and the sealing effect is good; at the 12 edges and corners of hem portion, hem portion 12 forms line seal with bottom plate 2 and clamp plate 3, and the sealed effect of line seal is superior to face seal to further improve the sealed effect of filter core 1. The cross section of the recessed portion 122 along the groove depth direction thereof may also be in any shape such as an arc shape and a V shape, as long as the surface of the filter element 1, the bottom plate 2 and the pressure plate 3, which is in sealing fit, is a bending surface or a curved surface, which can increase the sealing area and the sealing path compared with a planar seal, and improve the sealing effect of the filter element 1.

Example 2

The present embodiment provides a filter, as shown in fig. 1, 4 and 5, comprising a filter cartridge 1 of embodiment 1, a bottom plate 2 and a pressure plate 3. Wherein, the middle part of the bottom plate 2 is concave to form an accommodating part 21 for accommodating the filter element 1; the accommodating part 21 is provided with a sealing flange 22; a sealing groove 31 is arranged on one side of the pressure plate 3 facing the filter element 1; the convex part 121 is inserted into the sealing groove 31, and the convex part 121 is in sealing fit with the sealing groove 31; the recess 122 is for the sealing flange 22 to be inserted, and the recess 122 is in sealing fit with the sealing flange 22.

The filter of this structure, it is sealed or several sections face sealings of buckling to form the curved surface contact between filter core 1 and bottom plate 2, filter core 1 and the clamp plate 3, has increased sealed area and dust and has got into the route, effectively guarantees the sealed effect of filter core 1 and bottom plate 2 and clamp plate 3 contact position.

The bottom plate 2 is provided with a vent formed in the accommodating portion 21. The counter surface of the receptacle 21 is flush with the outer surface of the base plate 2, on which the sealing flange 22 is arranged.

Furthermore, a clamping part 23 is arranged on the bottom plate 2; be equipped with on the clamp plate 3 with joint portion 23 complex cooperation portion 32, joint portion 23 and the cooperation of cooperation portion 32 joint are in order to install clamp plate 3 on bottom plate 2. When the filter is installed, the concave part 122 of the filter element 1 is connected with the sealing flange 22 in a clamped mode, the pressing plate 3 is pressed on the filter element 1, the pressing plate 3 is matched with the bottom plate 2 in a clamped mode, the pressing plate 3 is convenient to install and detach, the filter element 1 is convenient to replace, and the replacement efficiency of the filter element 1 is improved.

For example, referring to fig. 4, 5 and 6, the matching portion 32 is at least two clamping grooves formed in the outer wall of the pressing plate 3, and the at least two clamping grooves are arranged at intervals along the depth direction of the accommodating portion 21; the clamping part 23 is arranged on the inner wall of the accommodating part 21 in a protruding mode. Joint portion 23 can cooperate with different draw-in grooves to change the clearance of clamp plate 3 and bottom plate 2 opposite face, this clearance is used for holding the flat plate portion 112 of filter core 1, the clearance is different, the installation of adaptable different thickness filter core 1, at this moment, the groove width of sealed recess 31 and sealed flange 22 thickness can adapt to the adjustment according to filter core 1 thickness, guarantee filter core 1 hem portion 12 and sealed recess 31, the inseparable butt of sealed flange 22 formation is sealed can. Furthermore, the outer walls of two opposite sides of the pressing plate 3 are provided with connecting plates parallel to the outer walls of the pressing plate, the clamping grooves are formed in the connecting plates, and the clamping portions 23 are correspondingly arranged on two opposite sides of the bottom plate 2. Optimally, the clamping grooves are multiple, namely the matching parts 32 are arranged in multiple gears, so that the gap between the pressing plate 3 and the bottom plate 2 can be conveniently adjusted, the adaptability of the pressing plate 3 is good, and the installation of the filter element 1 with various thicknesses can be adapted.

Soft rubber frame filter among the prior art, including at the portion 111 of bending, flat plate portion 112 and the soft rubber frame of parcel in flat plate portion 112 periphery, can place soft rubber frame filter inside sealing flange 22, clamp plate 3 presses and establishes on soft rubber frame, and clamp plate 3 is adjusted apart from the many gears draw-in grooves of 2 clearance accessible of bottom plate to hold the soft rubber frame of thick size, and clamp

plate

3 and 2 product adaptability of bottom plate are good.

Example 3

The present embodiment provides an air conditioner for a vehicle including the filter of embodiment 2. The filter element 1 in the filter, the bottom plate 2 and the pressing plate 3 have good sealing effect, and the air purification effect of the vehicle air conditioner is good.

Example 4

The present embodiment provides a construction machine including the vehicle air conditioner of embodiment 3.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. A filter element is characterized by comprising

The filter element comprises a filter element body and a filter element cover, wherein the filter element body comprises a bending part (111) and a flat plate part (112) arranged on the periphery of the bending part (111);

a hem (12) provided on the outer edge of the flat plate portion (112); one side of the folded part (12) is convexly arranged on the flat plate part (112) to form a convex part (121), and the other side of the folded part is inwards sunken from the flat plate part (112) to form a concave part (122).

2. The filter cartridge according to claim 1, wherein the projection (121) and/or the recess (122) are annular.

3. The filter cartridge of claim 1 or 2, wherein the outer edge of the plate portion (112) is folded to form the hem portion (12).

4. A filter insert as claimed in claim 3, wherein a first end face of the flange portion (12) remote from the plate portion (112) is flush with a bottom face of the plate portion (112).

5. The filter cartridge according to claim 1 or 2, characterized in that the recess (122) has a rectangular cross section in the direction of its groove depth.

6. A filter, comprising

The filter cartridge (1) of any one of claims 1 to 5;

a bottom plate (2), wherein the middle part of the bottom plate is concave to form a containing part (21) for containing the filter element (1); a sealing flange (22) or a sealing groove (31) is arranged on the accommodating part (21);

a pressure plate (3) which is provided with a sealing groove (31) or a sealing flange (22) on one side facing the filter element (1); the bulge part (121) is inserted into the sealing groove (31), and the bulge part (121) is in sealing fit with the sealing groove (31); the concave part (122) is used for plugging the sealing flange (22), and the concave part (122) is in sealing fit with the sealing flange (22).

7. The filter according to claim 6, characterized in that the bottom plate (2) is provided with a clamping part (23); be equipped with on clamp plate (3) with joint portion (23) complex cooperation portion (32), joint portion (23) with cooperation portion (32) joint cooperation in order to with clamp plate (3) install in on bottom plate (2).

8. The filter of claim 7, wherein the engagement portion (32) comprises at least two locking grooves formed in an outer wall of the pressing plate (3), and the at least two locking grooves are arranged at intervals along a depth direction of the accommodating portion (21); the clamping portion (23) is convexly arranged on the inner wall of the accommodating portion (21).

9. An air conditioner for a vehicle, characterized by comprising the filter of any one of claims 6 to 8.

10. A construction machine characterized by comprising the vehicle air conditioner according to claim 9.