JP3780912B2 - Vehicle air purifier - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle air purifier that purifies air in a passenger compartment.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is a vehicle air purifier in which an air purifier for purifying air in a passenger compartment is mounted on the ceiling of the passenger compartment. This vehicle air purifier has one air inlet and one air outlet, and the fan motor uses a brush motor, so the thickness of the air purifier equipment is considerably increased. The passenger's head could collide with the car because it protruded considerably from the ceiling of the passenger compartment. In addition, since there is one intake port and one outlet, sufficient air volume cannot be secured, air flow tends to be extreme, air in the vehicle interior tends to stagnate, and uniform throughout the vehicle interior The air could not be cleaned.
[0003]
Therefore, the present applicant has previously proposed a vehicle air cleaner as described in JP-A-2001-105848. This known vehicle air purifier has two air outlets and one air inlet so that a sufficient air volume can be secured by reducing the pressure loss of the airflow caused by the filter. However, even in this vehicle air purifier, since the air outlet is completely directed to the side, the protruding portion from the ceiling of the device cannot be made sufficiently thin, and the air outlet extends in the longitudinal direction of the vehicle. Since it is facing, the blown air directly touches the occupant's head, causing a problem of giving the occupant a feeling of cold wind or distorting hair. Further, in this conventional vehicle cleaner, since the entire device is not formed sufficiently thin, the deformation of the casing is hardly considered.
[0004]
[Problems to be solved by the invention]
The present invention has been made in view of the above problems, and its purpose is for a vehicle that can secure a sufficient air volume, can sufficiently reduce the thickness of the entire device, and can prevent deformation of a cover body that constitutes a casing. It is to provide an air purifier.
[0005]
[Means for Solving the Problems]
The present invention provides the vehicle air purifier according to each of the claims as means for solving the problems.
The vehicle air cleaner according to claim 1 includes a casing having at least a rectangular main body case and a rectangular cover body, and the main body case and the cover body are sufficiently spaced apart in the longitudinal direction. At the four corners of the rectangular shape, the cover body is fixed to the main body case by the hook rib provided on the cover body at the substantially central part between the two screw fixing parts in the longitudinal direction. In addition to being stopped, the position of the hook rib of the cover body is in the vicinity of the switch provided in the main body case, so that the cover body can be prevented from being deformed by its own weight , and the cover body can be prevented from being deformed . It is possible to prevent the switch from sinking into the cover body due to the bending.
[0006]
In the vehicle air cleaner according to the second aspect , the cover body is provided with a punching hole for the hook rib, and the punching hole is covered with a name plate. When resin-molding a cover body having a hook rib, it is necessary to provide a die-cut hole in the cover body in order to die-cut the hook rib, and the die-cut hole is covered with a name plate to improve the appearance. Intrusion of dust and the like is prevented.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a vehicle air cleaner according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a partially enlarged cross-sectional view taken along line AA of FIG. 2, which best shows the characteristics of the vehicle air cleaner of the present invention, and FIG. 2 is a cover of the vehicle air cleaner of the present invention. FIG. 3 is a longitudinal sectional view of a vehicle air cleaner. The casing 1 of the vehicle air cleaner 10 is composed of a rectangular main body case 2, a similarly rectangular cover body 3 provided with an air inlet, and a filter cover 4 also serving as an air outlet. Has been. An air passage 12 extending from the inlet 31 to the outlet 41 is formed inside the casing, and a blower 5 including a motor 51 and a fan 52 that generates an air flow from the inlet 31 toward the outlet 41 is provided. Installed. Note that a brushless motor is used as the motor 51. One suction port 31 is provided at a substantially central portion of the vehicle air cleaner 10 and sucks air from below. Two outlets 41 are provided symmetrically with respect to the central inlet 31. Therefore, the air sucked from the suction port 31 is branched to the left and right and blown out from the respective outlets 41 through the air passage 12 into the vehicle interior.
[0008]
In the air passage 12 located downstream of the blower 5 and upstream of the air outlet 41, a dust removing filter 6 and a deodorizing filter 7 are arranged in order from the upstream along the air flow. The dust removal filter 6 has a rectangular parallelepiped shape, and is made of a folded nonwoven fabric to capture (removes) dust in the air. The deodorization filter 7 has a rectangular parallelepiped shape and is attached to the honeycomb carrier. It consists of activated carbon and removes odors in the air.
The vehicle air purifier 10 configured as described above is mounted on the interior plate 8 on the passenger compartment ceiling so that the air outlets 41 face both side surfaces of the vehicle.
[0009]
As shown in FIG. 4, the main body case 2 and the cover body 3 are fixed by screws 9 so that the opening sides of the main body case 2 and the cover body 3 are aligned. That is, screw fixing portions 32 are formed at the four corners of the rectangular cover body 3, and screw holes are formed at positions of the main body case 2 corresponding to these screw fixing portions 32. The main body case 2 and the cover body 3 are fixed. A filter cover 4 having an air outlet is detachably attached to both side surfaces of the cover body 3 fixed to the main body case 2.
[0010]
Furthermore, a hooking rib 33 having a jaw 33a, which is a feature of the present invention, is provided at a substantially central portion between the two screw fixing portions in the longitudinal direction of the cover body 3. The hook rib 33 is provided so as to protrude from the inner surface of the cover body 3 to the main body case 2 side. Further, in order to form the hooking rib 33 having the jaw portion 33a by resin molding, the cover body 3 is provided with a die-cutting hole 34 adjacent to the hooking rib 33. This die hole 34 is covered with a nameplate 35 after resin molding.
Further, a switch hole 36 for projecting the switch 21 provided in the main body case 2 from the cover body 3 is provided in the vicinity of the catching rib 33 of the cover body 3. The switch 21 is a switch for manually switching the blower 5 between a high speed operation and a low speed operation.
[0011]
The main body case 2 is formed with a wall portion 2a for receiving the hook rib 33 of the cover body 3 and hooking the jaw portion 33a. A hook-like hook 22 is provided at the side of the main body case 2 so as to be hooked to the periphery of the opening of the interior material 8 on the vehicle ceiling so that the main body case 2 can be temporarily fixed to the interior material 8. Yes.
[0012]
In the casing of the vehicle air cleaner of the present invention configured as described above, when the main body case 2 and the cover body 3 are fixed with screws, the two screw fixing portions 32 in the longitudinal direction of the cover body 3 are interposed. The substantially central portion is locked to the main body case 2 by the hooking rib 33. In order to ensure a sufficient air volume and to reduce the thickness of the device as much as possible as in the present invention, it is necessary to increase the surface area on the inlet 31 and outlet 41 side. The span increases between the screws in the longitudinal direction (for example, about 370 mm or more) and the cover body 3 is easily bent due to its own weight. However, as in the cover body 3 of the present invention, a substantially central portion between the screw fixing portions 32 is formed. Since it is locked to the main body case 2 by the hooking rib 33, the cover body 3 can be prevented from being deformed by bending. In addition, since the screw fixing part for screw fixing is not provided structurally in the vicinity of the center part of the cover body 3, the hook rib is used instead.
Further, since the cover body can be prevented from being deformed, the switch is not immersed in the cover body, and the switch can be easily operated.
[Brief description of the drawings]
FIG. 1 is an enlarged cross-sectional view of an essential part taken along line AA of FIG. 2 of a vehicle air cleaner according to an embodiment of the present invention.
FIG. 2 is a plan view of a cover body of a vehicle air cleaner according to the present invention.
FIG. 3 is a longitudinal sectional view of a vehicle air cleaner according to the present invention.
FIG. 4 is a diagram illustrating a combination of a main body case and a cover body of the vehicle air cleaner according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Car air cleaner casing 2 ... Main body case 2a ... Wall part 21 ... Switch 3 ... Cover body 31 ... Suction port 32 ... Screw fixing part 33 ... Hook rib 33a ... Jaw part 34 ... Die-out hole 35 ... Name plate 36 ... Switch hole 4 ... Filter cover 41 ... Air outlet 5 ... Blower 6 ... Dust removal filter 7 ... Deodorization filter 8 ... Interior plate 9 ... Screw 10 ... Vehicle air purifier

Claims (2)

An air passage through which air flows from the inlet to the outlet, a blower that generates an air flow in the air passage from the inlet to the outlet, and an air passage installed in the air passage and passing through the air passage In a vehicle air purifier comprising a filter for purifying air to be
The casing of the vehicle air cleaner is composed of at least a rectangular main body case and a rectangular cover body, and the main body case and the cover body are sufficiently spaced in the longitudinal direction at four corners of the rectangular shape, It is fixed by screws or the like with screws fixing portion, and in a substantially central portion between the two screw fixing portion in the longitudinal direction, Tei the cover member by hooking rib provided on the cover member is engaged with the main body case The vehicle air cleaner is characterized in that the position where the cover rib is provided on the cover body is in the vicinity of a switch provided on the main body case . The vehicle air cleaner according to claim 1 , wherein the cover body is provided with a punching hole of the hook rib, and the punching hole is covered with a name plate.

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