JPH06218214A - On-vehicle air cleaner - Google Patents

Abstract

PURPOSE:To provide an on-vehicle air cleaner capable of being used for a long period by preventing the deformation of the housing in the thermal environment without changing the weight, etc., of the cleaner. CONSTITUTION:Both ends of the upper surface 5a of a housing 5 in the longitudinal direction A are fixed to the panel setting surface 4. The center of the upper surface 5a of the housing 5 in the longitudinal direction A is convexed toward the panel setting surface 4. Even when the plastic housing 5 is expanded, the upper surface 5a of the housing 5 is not deformed downward since the upper surface 5a is convexed, and the sealability of the packings 12 and 13 is not deteriorated. Further, the blown air is not leaked, and the original performance of the air cleaner 1 is maintained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifier of an air circulation type which is installed in an automobile or the like to clean the air.

[0002]

2. Description of the Related Art As a conventional air purifier 1 ', as shown in FIGS. 6 and 7, a housing 5'is provided with an air inlet 10 and an air outlet 11, and the air inlet 10 to the air outlet 11 are provided. Blower 8 including a fan 6 and a motor 7 for blowing air in the middle of the air flow path in the housing 5 '
There is known an air circulation type in which an air cleaning filter 9 for removing smoke, dust or odor in the air is arranged. The housing 5'of the air purifier 1'is attached to the panel installation surface 4 provided behind the rear seat 3 of the vehicle, and the upper surface 5a 'of the housing 5'facing the panel installation surface 4 in the longitudinal direction A Both ends are fixed to the panel installation surface 4 via brackets 40. Further, the housing 5'is a packing 1 for sealing the air suction port 10.
It is joined to the panel installation surface 4 by using 2'and 13 ', and further, is arranged to face the inside of the vehicle through the grill packings 14 and 15 and the grill 16. Thus, the housing 5'of the air purifier 1'is suspended and fixed in the trunk room 2.

[0003]

By the way, when the housing 5'is installed in the trunk 2 of the vehicle as in the conventional case, the housing 5'is made of, for example, PP or ABS.
In the case where the housing 5'is made of plastic such as, for example, the housing 5'expands and contracts due to repeated high and low temperatures, the housing 5'deforms downward due to such changes in the thermal environment, and the upper surface 5a 'of the housing 5'is shown in FIG. The flat shape shown in a) tends to be a dogleg shape as shown in FIG. 8 (b), and therefore, the sealability of the packings 12 ', 13' is impaired, and the air blown leaks to the air purifier 1 '. There is a problem that the original performance cannot be maintained. Therefore, packing 12 ',
It is conceivable to increase the tightening margin of 13 'to suppress air leakage as much as possible, but in this case, not only extra material for packing 12', 13 'is required, but also packing 12', 1 '
The deformation amount of 3'is about 2 to 3 cm at the center, and therefore,
The packings 12 'and 13' are bent in a dogleg shape, which is not preferable in appearance. On the other hand, a method of reinforcing the housing 5'with a heat resistant material such as metal or the bracket 40
It is conceivable that the air cleaner 1'is added to the center of the upper surface 5a 'of the housing 5', but in either case, the weight of the air purifier 1'becomes large, which makes it unsuitable for vehicle mounting. A method of simply increasing the wall thickness of the housing 5'can be considered, but deformation due to expansion cannot be avoided.

The present invention has been made in view of the above conventional problems, and an object thereof is to prevent deformation of the housing in a thermal environment for a long period of time without changing the weight or the like of the air purifier. An object is to provide an in-vehicle air purifier that can be used.

[0005]

In order to solve the above-mentioned problems, the invention according to claim 1 is such that a housing 5 of an air purifier 1 is attached to a panel installation surface 4 provided behind a rear seat 3 of a vehicle, An air inlet 10 for sucking air inside the vehicle and an air outlet 11 for discharging clean air into the vehicle are provided on the center side of the upper surface 5a of the housing 5 in the longitudinal direction A,
The air inlet 10 and the air outlet 11 are packings 1.
In the air circulation type on-vehicle air purifier 1 which is joined to the panel installation surface 4 via 2 and 13, the panel installation surface 4
Both ends of the upper surface portion 5a of the housing 5 facing in the longitudinal direction A are fixed to the panel mounting surface 4, and the center side of the upper surface portion 5a of the housing 5 in the longitudinal direction A is convex toward the panel mounting surface 4. It is characterized in that it is curved as described above.

The invention according to claim 2 is such that the housing 5 according to claim 1 faces the panel installation surface 4 at the upper surface portion 5a.
And a lower surface portion 5c facing the upper surface portion 5a, and the center side of the lower surface portion 5c in the longitudinal direction A is curved so as to be convex toward the upper surface portion 5a. On the other hand, the invention according to claim 3 is a filter in which the housing 5 of the air purifier 1 is attached to the panel installation surface 4 provided behind the rear seat 3 of the vehicle, and the housing 5 accommodates the filter 9 for air cleaning. An air circulation type vehicle-mounted air purifier 1 is provided with a filter inlet 19 through which the case 18 can be freely taken in and out, and the filter case 18 is in contact with the filter inlet surface 20 while being inserted from the front B of the filter inlet 19.
In the above, the filter inlet surface 20 of the housing 5 is
The center side of the longitudinal direction A is curved so as to be convex toward the front B of the filter inlet 19.

The invention according to claim 4 is characterized in that the housing 5 according to claim 3 is provided with a filter guide rib 22 on the downstream side of the filter 9.

[0008]

According to the present invention, both end sides of the upper surface 5a of the housing 5 in the longitudinal direction A are fixed to the panel mounting surface 4, and the upper surface 5a of the housing 5 is centered in the longitudinal direction A at the panel mounting surface 4. Since the housing 5 made of plastic such as PP or ABS is placed in a thermal environment in which it expands and contracts due to repeated high and low temperatures, it is curved so as to be convex toward. Even
The curved shape of the upper surface portion 5a can prevent the upper surface portion 5a of the housing 5 from being deformed downward, and the packing 12, 1
3 does not impair the sealing property. Therefore, the blown air does not leak, and the original performance of the air purifier 1 can be maintained.

[0009]

【Example】

(Example 1) In-vehicle air purifier 1 used in this example
As shown in FIG. 2, the air cleaner 1 is suspended and fixed in the trunk room 2 of the vehicle, and the housing 5 of the air purifier 1 is attached to the panel installation surface 4 provided behind the rear seat 3 of the vehicle. ing. In the housing 5, as shown in FIG. 1, an air blower 8 including a fan 6 for blowing air and a motor 7, and an air cleaning filter 9 for removing smoke, dust, or odor in the air. And are arranged.

The housing 5 is a molded product molded from a plastic material such as PP or ABS, and has an upper surface portion 5a facing the panel installation surface 4, a side surface portion connected to the upper surface portion 5a, and an upper surface connected to the side surface portion. Lower surface portion 5 facing the portion 5a
and b. Both ends of the upper surface 5a of the housing 5 in the longitudinal direction A are fixed to the panel mounting surface 4 via brackets 40, respectively. An air suction port 10 for sucking air inside the vehicle and an air discharge port 11 for discharging clean air into the vehicle are arranged in parallel on the center side of the upper surface portion 5a of the housing 5 in the longitudinal direction A. The air suction port 10 and the air The discharge port 11 is joined to the panel installation surface 4 by packings 12 and 13, respectively.
And the grill 16 are provided to face each other in the vehicle.

The upper surface 5a of the housing 5 facing the panel mounting surface 4 is curved so that the center side in the longitudinal direction A is convex toward the panel mounting surface 4. That is, with respect to the imaginary line M'which linearly connects both ends 5d, 5d of the upper surface portion 5a, the upper surface portion 5a has a curved shape shown by an arcuate imaginary line M curved above the imaginary line M '. Therefore, the upper surface 5a of the housing 5 is prevented from being deformed downward due to a thermal environment or the like, so that the sealability of the packings 12 and 13 is not impaired.

As described above, the upper surface portion 5a of the housing 5
Both ends in the longitudinal direction A of the housing 5 are fixed to the panel installation surface 4, and the upper surface portion 5a of the housing 5 is curved so that the center side in the longitudinal direction A is convex toward the panel installation surface 4. Even when the housing 5 made of plastic such as PP or ABS is placed in a thermal environment in which it expands and contracts due to repeated high and low temperatures,
The curved shape of the upper surface portion 5a can prevent the upper surface portion 5a of the housing 5 from being deformed downward, and the packing 12, 1
3 does not impair the sealing property. The housing 5
The upper surface 5 of the housing 5 when the
Although a has an expansion force that deforms slightly upward rather than downward, gravity also causes downward action, so there is no risk of the upper surface 5a of the housing 5 expanding significantly upward. It is a thing. Moreover, the upper surface portion 5a of the housing 5 is slightly deformed upward, so that the space between the air suction port 10 and the panel installation surface 4 and the air discharge port 1 are
The sealability between the packing 1 and the panel installation surface 4 by the packings 12 and 13 is rather strong, so that the air blown does not leak and the original performance of the air purifier 1 can be maintained. As described above, it is possible to obtain the vehicle-mounted air purifier 1 that can withstand long-term use without changing the weight or material of the housing. Besides, housing 5
Since the deformation of is not in the hanging direction, the appearance is good. (Embodiment 2) In the present embodiment, as shown in FIGS. 3 and 4, in addition to the structure in which the upper surface portion 5a of the housing 5 is convexly curved upward as indicated by an imaginary line M, the upper surface portion of the housing 5 is The lower surface portion 5b facing 5a is also curved so that the center side in the longitudinal direction A is convex toward the upper surface portion 5a as indicated by an imaginary line N, and the motor 7 is mounted on the curved lower surface portion 5b. It was done. In this case, when the housing 5 expands at high temperature, the upper surface portion 5 of the housing 5
At the same time as a is prevented from being deformed downward, the lower surface portion 5b of the housing 5 is also prevented from being deformed downward. By the way, when the lower surface portion 5b of the housing 5 is deformed downward, the cross-sectional area of the air passage in the housing 5 is changed, and accordingly, the air volume is changed and the performance is deteriorated, or it interferes with vehicle parts such as a gasoline tank. However, by preventing the lower surface 5b of the housing 5 from being deformed downward as in the present embodiment, such a problem does not occur. (Embodiment 3) In this embodiment, as shown in FIGS. 5 (a) and 5 (b), a filter-replaceable on-vehicle air purifier 1 is provided.
A filter case 18 accommodating an air cleaning filter 9 is provided on a side surface portion 5b of the housing 5 with a filter inlet 19 which can be freely taken in and out.
9 is inserted from the front B of the filter inlet face 20
Abutting against. The filter inlet surface 20 is curved so that the center side in the longitudinal direction A is convex toward the front B of the filter inlet 19 as indicated by an imaginary line P. The filter case 18 is held by mounting brackets 21 and 21 provided on both sides of the housing 5.

By the way, conventionally, as shown in FIG.
A filter 9 for air cleaning is provided on the side surface 5b of the housing 5 '.
It is known that a filter case 18 accommodating a filter is provided with a filter inlet 19 that can be taken in and out, and the filter case 18 is inserted from the front B of the filter inlet 19 and brought into contact with the filter inlet surface 20 '. In this way, when the filter case 18 is of the pull-out type, the joint surface between the filter case 18 and the housing 5'is in the air passage, so it is necessary to take a sealing measure. 5'filter inlet face 20 '
However, there is a problem in that as shown by the phantom line Q in FIG. 10A, the packing 12 and 13 are deformed inward, the sealing properties of the packings 12 and 13 are impaired, and a gap is generated so that the original function cannot be maintained.

On the other hand, in the present invention, since the filter inlet surface 20 shown in FIG. 5A is curved so that the center side in the longitudinal direction A is convex toward the front B of the filter inlet 19, It is possible to prevent the filter inlet surface 20 from being deformed inwardly due to high temperature, and prevent the sealing property of the packing 30 from being impaired. Besides, Since the filter inlet surface 20 of the housing 5 is not deformed, the appearance is also good. (Embodiment 4) In this embodiment, as shown in FIG.
Housing 5 with pull-out filter case 18
The filter guide rib 22 is disposed in the housing 5 on the downstream side of the filter 9.

By the way, conventionally, as shown in FIG. 10 (b), when the air passes from the lower side to the upper side of the filter 9 with the filter case 18 accommodated, the air environment is high in temperature or high temperature and high humidity. Then filter 9
At the same time as receiving the wind pressure from the pressure loss, the thermal strength is weak due to the plastic and paper filter material,
As a result, the filter 9 is deformed upward as shown by the phantom line R in FIG. 10A, and the filter 9 protrudes from the filter case 18, resulting in the filter case 18
However, there is a problem in that it cannot be smoothly drawn out from the filter inlet 19.

On the other hand, in the present invention, on the downstream side of the filter 9 in the housing 5 shown in FIG. 5 (b), the filter guide is directed toward the air discharge port 11 along the wind flow direction indicated by the arrow. Since the ribs 22 are discharged, the filter guide ribs 22 can prevent the filter 9 from being deformed upward, and the filter 9 is prevented from protruding from the filter case 18. You will be able to pull it out smoothly. Moreover, the rib 2 for the filter guide
2 does not create wind loss with respect to the thermal stress of the filter 9 itself, and also has an action of guiding the flow of wind, which can prevent deformation of the filter 9 and can also reduce noise. Can be increased.

[0017]

As described above, according to the invention as set forth in claim 1, both longitudinal ends of the upper surface of the housing facing the panel installation surface are fixed to the panel installation surface, and the surface of the panel installation surface is fixed. Since the upper surface of the housing is curved so that the center side in the longitudinal direction is convex toward the panel installation surface, it is possible to prevent the upper surface of the housing from being deformed downward due to the thermal environment, and to blow air. As a result, the original performance of the air purifier can be maintained, and as a result, it is possible to obtain an in-vehicle air purifier that can be used for a long period of time without changing the weight and material of the housing as in the past. . According to the invention of claim 2, the housing according to claim 1 has an upper surface portion facing the panel installation surface and a lower surface portion facing the upper surface portion, and the lower surface portion has a longitudinal center. Since the side is curved so as to be convex toward the upper surface, when the housing expands at high temperature, the upper surface of the housing is prevented from being deformed downward, and the lower surface of the housing is also downward. It is prevented from transforming into. Therefore, the cross-sectional area of the air passage in the housing changes, or the air volume changes and the performance deteriorates.
It is possible to prevent interference with vehicle parts such as a gasoline tank.

On the other hand, according to the third aspect of the invention, the filter inlet surface of the housing in which the filter case is retractably housed is curved so that the center side in the longitudinal direction thereof is convex toward the front of the filter inlet. Since it is formed, it is possible to prevent the inlet surface of the filter from being deformed inwardly due to high temperature, it is possible to prevent the sealing property of the packing from being impaired, and the housing has a good appearance.

Further, according to the invention of claim 4, since the filter guide rib is disposed in the housing of claim 3 on the downstream side of the filter, the filter guide rib moves upward of the filter. Can be prevented from deforming,
The filter case can be smoothly pulled out from the filter inlet, wind loss is not generated due to thermal stress of the filter itself, and the filter case can be prevented from being deformed and silent.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an air purifier used in an embodiment of the present invention.

FIG. 2 is a front view showing a state in which the above air purifier is suspended and fixed in a luggage compartment.

FIG. 3 is a sectional view showing another embodiment of the present invention.

FIG. 4 is a front view showing a state where the air purifier of FIG. 3 is suspended and fixed in a trunk room.

5A is a plan view of the vicinity of a filter inlet surface used in yet another embodiment of the present invention, and FIG. 5B is a cross-sectional view of the vicinity of a filter case used in still another embodiment of the present invention. .

FIG. 6 is a cross-sectional view showing a conventional air purifier.

FIG. 7 is a front view showing a state in which a conventional air purifier is suspended and fixed in a trunk room.

8A and 8B are front views showing a modified state of a conventional housing.

FIG. 9 is an exploded perspective view of a conventional pull-out filter case and a housing.

10A is a plan view showing a deformed state of a conventional filter inlet surface, and FIG. 10B is a partially cutaway sectional view showing a deformed state of the conventional filter.

[Explanation of symbols]

 1 Air purifier 4 Panel installation surface 5 Housing 5a Upper surface 5b Lower surface 9 Filter 10 Air suction port 11 Air discharge port 12,13 Packing 18 Filter case 19 Filter inlet 20 Filter inlet face 22 Filter guide rib A Longitudinal direction B Forward

Claims (4)

[Claims] 1. A housing for an air purifier is mounted on a panel installation surface provided at the rear of a rear seat of a vehicle, and an air suction port for sucking air in the vehicle is provided at a longitudinal center of an upper surface of the housing. An air circulation type vehicle-mounted air purifier, comprising an air discharge port for discharging clean air into a vehicle, and the air suction port and the air discharge port being joined to a panel setting surface through a packing. Both ends of the upper surface of the housing facing the surface in the longitudinal direction are fixed to the panel installation surface, and the center of the upper surface of the housing in the longitudinal direction is curved so as to be convex toward the panel installation surface. An on-vehicle air purifier characterized in that 2. The housing has an upper surface facing the panel installation surface and a lower surface facing the upper surface, and the center of the lower surface in the longitudinal direction is curved so as to be convex toward the upper surface. The vehicle-mounted air purifier according to claim 1, wherein the air purifier is formed. 3. A housing for an air purifier is attached to a panel installation surface provided at the rear of a rear seat of a vehicle, and a filter case in which a filter for air cleaning is accommodated is provided in the housing so that a filter inlet is removable. In the air circulating type on-vehicle air purifier, wherein the filter case is in contact with the filter inlet face in a state of being inserted from the front of the filter inlet, the filter inlet face of the housing has a filter inlet face at the center side in the longitudinal direction. An in-vehicle air cleaner, which is curved so as to be convex toward the front. 4. The in-vehicle air purifier according to claim 3, wherein a filter guide rib is provided in the housing on the downstream side of the filter.