JP2019202288A - Air filter and filter member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air filter and a filter member capable of avoiding erroneous assembly of a panel type filter member to an assembly frame. An air filter (10) includes an assembly frame (15) and a panel-type filter member (25) that is detachably assembled to the assembly frame (15), and the assembly frame (15) is an assembly port to which the filter member (25) is assembled. 19 and the outer peripheral support portion 18 that supports the outer peripheral side portion 26 of the filter member 25 from the opposite side of the assembling port 19. The filter member 25 is located inside the outer peripheral side portion 26 and the outer peripheral side portion 26. The filter portion 29 and the protruding piece 31 that is connected to the outer peripheral side portion 26 and protrudes a part of the filter portion 29 from the assembling port 19 in the state of being in contact with the outer peripheral support portion 18. [Selection diagram] Figure 2

Description

  The present invention relates to an air filter used for a battery cooling device and a panel-type filter member constituting the air filter.

  Hybrid vehicles and electric vehicles are equipped with a battery cooling device that cools the battery for the purpose of suppressing deterioration in battery performance. For example, Patent Literature 1 discloses a battery cooling device that cools a battery by using air-conditioned air in a passenger compartment. In recent years, hybrid vehicles and electric vehicles have also been put into practical use for large vehicles such as sightseeing buses, and battery cooling devices that cool batteries using air-conditioned air in the passenger compartment are also used in these large vehicles.

  In such a battery cooling device, although the battery is cooled using air conditioned in the passenger compartment, if the air is used for cooling the battery as it is, dust in the air is supplied to the battery. . For this reason, the intake duct has an air filter that removes dust in the air. The air filter has an assembly frame and a filter member that is removably assembled to the assembly frame and can be reused by cleaning.

JP 2009-12606 A

  A panel type filter member, which is one of such filter members, has a front surface through which air before filtration flows and a back surface through which air after filtration flows out. Therefore, if the front surface and the back surface are assembled oppositely after cleaning, dust remaining on the filter member may be supplied to the battery.

  An object of the present invention is to provide an air filter and a filter member that can avoid erroneous assembly of a panel-type filter member to an assembly frame.

  An air filter that solves the above problems includes a panel-type filter member having an outer peripheral side portion and a filtration portion positioned inside the outer peripheral side portion, an outer frame having an assembly port to which the filter member is assembled, and the outer frame. An assembly frame in which the filter member is removably assembled with an outer periphery support portion that supports the outer periphery side portion on the opposite side of the assembly port in a normal assembly state in which the outer periphery side portion is accommodated in the frame. The filter member includes a protruding piece that is connected to the outer peripheral side portion and protrudes from the assembly port in the normal assembled state.

  The filter member that solves the above problem is a panel-type filter member that has an outer peripheral side part and a filtration part located inside the outer peripheral side part, and is removably assembled to an assembly frame, The assembly frame includes an outer frame having an assembly port to which the filter member is assembled, and an outer periphery that supports the outer peripheral side portion on the opposite side of the assembly port in a normal assembly state in which the outer peripheral side portion is accommodated in the outer frame. And the filter member includes a protruding piece that is connected to the outer peripheral side portion and protrudes from the assembling port in the normal assembled state.

  According to the said structure, when a filter member is misassembled with respect to an assembly | attachment frame, a protrusion piece can be made to contact | abut with respect to an outer periphery support part. Thereby, since an outer peripheral side part protrudes from an assembly opening, without being settled in an outer frame, it can grasp | ascertain misassembly of a filter member easily. As a result, erroneous assembly of the filter member can be avoided.

In the air filter that solves the above problem, the filter member preferably includes a plurality of the protruding pieces.
According to the said structure, the probability that a protrusion piece contact | abuts to an outer peripheral support part in the case of incorrect assembly | attachment can be raised. As a result, erroneous assembly of the filter member can be avoided more reliably.

  In the air filter that solves the above-described problem, it is preferable that the outer peripheral side portion has a rectangular frame shape, and the protruding piece is connected to a pair of side surface portions facing each other on the outer peripheral side portion.

  According to the above configuration, for example, even when the filter member is assembled from the assembly port in an inclined state, at least one protruding piece interferes with the assembly frame at the time of assembly. As a result, erroneous assembly of the filter member can be avoided more reliably.

  In the air filter having the above-described configuration, the outer peripheral side portion has elasticity, and the assembly frame is connected to the outer frame, and at least a part of the outer peripheral portion of the filter member in the normal assembly state. It is preferable to have a drop-off preventing piece that covers from the assembly port side.

  According to the said structure, drop-off of the filter member after a normal assembly | attachment is prevented by the drop-off prevention piece. Further, when the filter member is assembled to the assembly frame, interference between the filter member and the drop-off preventing piece can be avoided by elastically deforming the outer peripheral side portion. That is, according to the said structure, it is not necessary to fasten a filter member to an assembly | attachment frame, for example with a fastener. Thereby, simplification of an assembly | attachment operation | work can be achieved, preventing the incorrect assembly | attachment of a filter member.

It is a perspective view which shows schematic structure of one Embodiment of an air filter, Comprising: The perspective view which shows the normal assembly | attachment state by which one Embodiment of the filter member was normally assembled | attached with respect to the assembly | attachment frame. The disassembled perspective view which shows the filter member assembled | attached with a correct direction with respect to an assembly | attachment frame and an assembly | attachment frame. It is a side view which shows an example of the air filter in a normal assembly state, Comprising: The figure which shows an assembly frame in cross section. It is a side view which shows an example of the air filter in a mistake | attachment state, Comprising: The figure which shows an assembly | attachment frame in a cross section. The figure which shows an example of the shape of the protrusion piece in a modification.

One embodiment of an air filter and a filter member will be described with reference to FIGS.
As shown in FIG. 1, the air filter 10 is used in a battery cooling device mounted on, for example, a hybrid vehicle. The air filter 10 is detachably attached to the distal end portion of the intake duct 11 by a fastener (not shown), for example. The air filter 10 includes an assembly frame 15 and a panel-type filter member 25.

  As shown in FIG. 2, the assembly frame 15 has a rectangular frame shape, and is produced, for example, by deforming and joining a metal plate such as aluminum. The assembly frame 15 includes an outer frame 16, a drop-off prevention piece 17, and an outer peripheral support portion 18. The outer frame 16 covers the panel-type filter member 25 from the side and forms an assembly port 19 into which the filter member 25 is assembled. The outer frame 16 has a pair of short side frame portions 20 facing each other and a pair of long side frame portions 21 facing each other. The drop-off prevention piece 17 covers the peripheral end of the assembly opening 19 at the corner of the outer frame 16, that is, at the corner formed by the short-side frame 20 and the long-side frame 21. The drop-off prevention piece 17 prevents the filter member 25 from dropping from the assembly port 19 by covering at least a part of the outer peripheral portion of the filter member 25 assembled to the assembly frame 15 from the assembly port 19 side. . The outer peripheral support portion 18 is located on the opposite side of the outer frame 16 from the assembly port 19 and has a piece-like shape extending inward along the entire circumference of the outer frame 16. The outer peripheral side portion 26 of the assembled filter member 25 is supported from the opposite side of the assembly port 19.

  The filter member 25 includes an outer peripheral side portion 26, a filtering portion 29, and a protruding piece 31. The outer peripheral side part 26 is a rectangular frame-like frame body having a pair of short side parts 27 facing each other and a pair of long side parts 28 facing each other. Has been granted. The short side part 27 and the long side part 28 are provided with the drop-off prevention piece 17 and the outer peripheral support part 18 in the assembly frame 15 so that the outer peripheral side part 26 is accommodated in the outer frame 16 of the assembly frame 15 in the normal assembly state. The side height H1 is smaller than the distance L1 between the two. Moreover, the one end part 27a of the short side part 27 and the one end part 28a of the long side part 28 are the assembly | attachment which is a virtual flat surface supported by the outer periphery support part 18 of the assembly frame 15 in a normal assembly state. Surface 25a is formed.

  The filtration part 29 has a bellows shape in which the bent parts 30 are arranged in a direction in which the pair of long side parts 28 face each other. The filtering unit 29 is made of, for example, a non-woven fabric and removes dust contained in the air by filtering the air. The filtering part 29 has elasticity and is configured to be elastically deformable in the direction in which the bent parts 30 are arranged, that is, in the direction in which the pair of long side parts 28 approach each other.

  The protruding piece 31 is integrally connected to each of the pair of short side portions 27 in the outer peripheral side portion 26. Each protruding piece 31 protrudes in the direction opposite to the assembly surface 25a from the central portion of the other end portion 27b of the short side portion 27. In the filter member 25, the maximum height H <b> 2 that is the height of the combined outer peripheral side portion 26 and the protruding piece 31 is greater than the outer frame height H <b> 3 that is the height of the outer frame 16 in the assembly frame 15. Set to a value. The filter member 25 is elastically deformed so that the pair of long side portions 28 are brought closer to each other, and is assembled to the assembly frame 15 in a state where the corners of the outer peripheral side portion 26 are brought closer to the center side. Interference with the drop-off prevention piece 17 is avoided.

  As shown in FIG. 3, in the normal assembly state in which the filter member 25 is assembled in the correct direction with respect to the assembly frame 15, the outer peripheral side portion 26 of the filter member 25 is supported by the outer peripheral support portion 18 of the assembly frame 15. Supported. Therefore, a part of the protruding piece 31 protrudes from the assembly port 19 of the assembly frame 15.

  On the other hand, as shown in FIG. 4, in an incorrect assembly state in which the filter member 25 is assembled in the wrong direction with respect to the assembly frame 15, at least one of the pair of protruding pieces 31 abuts on the outer peripheral support portion 18. Therefore, the outer peripheral side portion 26 of the filter member 25 and a part of the filtration portion 29 protrude from the assembly port 19 of the assembly frame 15. Further, a part of the filter member 25 is also deformed by the drop-off preventing piece 17. By such protrusion and deformation of the filter member 25, it can be easily grasped that the assembly direction of the filter member 25 is opposite. As a result, incorrect assembly of the filter member 25 can be avoided.

According to the air filter 10 and the filter member 25 of the above embodiment, the following functions and effects can be obtained.
(1) The filter member 25 has a protruding piece 31 that is integrally connected to the outer peripheral side portion 26 and protrudes part of the outer peripheral side portion 26 and the filtering portion 29 from the assembly frame 15 in an erroneously assembled state. ing. Therefore, it is possible to easily grasp the incorrect assembly of the filter member 25. As a result, erroneous assembly of the filter member can be avoided.

  (2) The filter member 25 has a plurality of protruding pieces 31. Since the filter member 25 has the plurality of projecting pieces 31 as described above, for example, a part of the projecting piece 31 is located inside the outer peripheral support portion 18 due to the filter member 25 being inclined at the time of assembly. Even if it passes, the remaining protruding piece 31 can abut on the outer peripheral support portion 18. That is, it is possible to increase the probability that the protruding piece 31 comes into contact with the outer peripheral support portion 18 at the time of incorrect assembly.

  (3) The filter member 25 has a protruding piece 31 on each of the short side portions 27 facing each other. Therefore, for example, the filter member 25 is assembled to the assembly frame 15 in a state where the positional relationship between the pair of short side portions 27 is inclined with respect to the assembly port 19, and one protruding piece 31 is located inside the outer peripheral support portion 18. Even if it passes, the other protruding piece 31 interferes with somewhere in the assembly frame 15. That is, according to the above configuration, at least one protruding piece 31 interferes with the assembly frame 15 during assembly. As a result, erroneous assembly of the filter member 25 can be avoided more reliably.

  (4) Since the outer peripheral side portion 26 has elasticity, the filter member 25 can be assembled to the assembly frame 15 in a state of being elastically deformed so that the pair of long side portions 28 approach each other. Further, the assembly frame 15 can prevent the filter member 25 from falling off by the drop-off preventing piece 17. As described above, the outer peripheral side portion 26 has elasticity and the assembly frame 15 has the drop-off prevention piece 17, so that the filter member 25 is assembled to the assembly frame 15 using, for example, a fastener. In comparison, the filter member 25 can be easily assembled while avoiding erroneous assembly of the filter member 25.

  (5) The filter member 25 includes a protruding piece 31 formed on the short side portion 27 and a filtering portion 29 in which the bent portion 30 extends along the direction in which the long side portion 28 extends. Therefore, the elastic deformation of the filter member 25 during assembly is a deformation that brings the pair of long side portions 28 closer to each other. The protruding piece 31 is formed in the central portion of the short side portion 27, that is, in the outer peripheral side portion 26 where it is least affected by the elastic deformation of the filter member 25. Thereby, the force required for elastic deformation of the filter member 25 due to the formation of the protruding piece 31 does not change greatly. As a result, it is possible to avoid erroneous assembly of the filter member 25 without greatly changing the assembly work of the filter member 25.

In addition, the said embodiment can also be suitably changed and implemented as follows.
-The filter member 25 should just be assembled | attached with respect to the assembly | attachment frame 15, and is not restricted to what has the elasticity in the outer peripheral side part 26. FIG. For example, the outer peripheral side portion 26 may be formed of resin or the like.

The assembly frame 15 does not have to include the drop-off preventing piece 17 that prevents the filter member 25 from dropping by covering a part of the outer peripheral portion of the filter member 25 at the assembly port 19.
-The protrusion piece 31 should just be what makes a part of the filtration part 29 protrude from the assembly port 19 in the state contact | abutted to the outer periphery support part 18. As shown in FIG. Therefore, the protruding piece 31 may be connected to the outer peripheral side portion 26, and the formation position may be the pair of long side portions 28. Further, the number of protruding pieces 31 is not limited to two, and may be one or three or more.

The assembly frame 15 and the filter member 25 are not limited to those having a rectangular frame shape, and may have, for example, a circular, elliptical, or polygonal frame.
-The outer peripheral side part 26 of the filter member 25 should just support the filtration part 29 from a side, and is not restricted to what has a frame shape, For example, it is comprised only by a pair of short side part 27. May be.

  As shown in FIG. 5, the protruding piece 31 may have a bent portion 32 in which the tip portion is disposed outside the outer peripheral side portion 26. According to such a configuration, when the filter member 25 is assembled incorrectly, the protruding piece 31 is easily brought into contact with the outer peripheral support portion 18 by the leading end portion being guided by the outer frame 16.

  DESCRIPTION OF SYMBOLS 10 ... Air filter, 11 ... Intake duct, 15 ... Assembly frame, 16 ... Outer frame, 17 ... Fall-off prevention piece, 18 ... Outer periphery support part, 19 ... Assembly port, 20 ... Short side frame part, 21 ... Long side Frame part, 25 ... Filter member, 25a ... Assembly surface, 26 ... Outer peripheral side part, 27 ... Short side part, 27a ... One end part, 27b ... Other end part, 28 ... Long side part, 28a ... One end part, 29 ... Filtration part, 30 ... Bending part, 31 ... Projection piece, 32 ... Bending part.

Claims (5)

A panel-type filter member having an outer peripheral side part and a filtration part located inside the outer peripheral side part;
An outer frame having an assembly port to which the filter member is assembled; and an outer peripheral support portion that supports the outer peripheral side portion on the opposite side of the assembly port in a normal assembly state in which the outer peripheral side portion is accommodated in the outer frame. And an assembly frame on which the filter member is removably assembled,
The filter member is
An air filter having a protruding piece connected to the outer peripheral side portion and protruding from the assembly port in the normal assembled state. The air filter according to claim 1, wherein the filter member has a plurality of the protruding pieces. The outer peripheral side portion has a rectangular frame shape,
The air filter according to claim 2, wherein the protruding piece is connected to a pair of side surface portions facing each other on the outer peripheral side portion. The outer peripheral side portion has elasticity,
The assembly frame includes a drop-off preventing piece that is connected to the outer frame and covers at least a part of an outer peripheral portion of the filter member from the assembly port side in the normal assembly state. The air filter according to one item. A panel-type filter member having an outer peripheral side part and a filtration part located inside the outer peripheral side part and detachably assembled to the assembly frame,
The assembly frame is
An outer frame having an assembly port to which the filter member is assembled; and an outer peripheral support portion that supports the outer peripheral side portion on the opposite side of the assembly port in a normal assembly state in which the outer peripheral side portion is accommodated in the outer frame. And
The filter member is
A filter member having a protruding piece connected to the outer peripheral side portion and protruding from the assembling port in the normal assembled state.

Images