JP2020152258A - Vehicle air conditioner - Google Patents

Abstract

To achieve weight reduction with a simple structure and install a filter to a case easily and securely in a vehicle air conditioner.SOLUTION: In a blower unit 12 forming a vehicle air conditioner 10, at an interior of a casing 18, a filer 20, inserted in a horizontal direction from a filter insertion port 72, is housed so as to be spanned between an outer air passage 60 and an inner air passage 62 and inserted into a filter hole 66 opening on a partition wall 64. The filter 20 includes a filter part 84 and a partition member 86 which is attached to a part of the filter part 84 and disposed so as to face the inner air passage 62. A first wall part 90 of the partition member 86 is disposed at the filter hole 66 so as to face the partition wall 64. A lower surface 84a of the filter part 84 is held by a connection part 94 and the filter 20 is held by a guide part 80 provided at the outer air passage 60.SELECTED DRAWING: Figure 2

Description

The present invention relates to a vehicle air conditioner that is mounted on a vehicle and regulates the temperature of air taken in by a blower and blows the air into the vehicle interior to adjust the temperature inside the vehicle interior. More specifically, the blower unit including the blower. Regarding the air conditioner for vehicles having.

The vehicle air conditioner mounted on the vehicle takes in the inside and outside air into the case through the blower unit, and takes the air cooled by the evaporator which is the cooling means and the air heated by the heater core which is the heating means into the case. After mixing in a desired mixing ratio, the temperature and humidity in the vehicle interior are adjusted by selectively blowing air from each air outlet provided in the vehicle interior.

This blower unit has, for example, as disclosed in Patent Document 1, a two-layer structure in which two first and second fans are provided vertically, and the first and second fans are contained in a blower case. The fan is housed, the inside / outside air case provided on the upper part of the blower case is divided into the first and second air passages, and the filter member straddles the first and second air passages. It is provided almost horizontally inside the case.

This filter member is detachably provided from the side of the inside / outside air case, and is composed of a filter medium for removing dust and the like in the air and a frame portion for holding the filter medium. The frame portion is the entire circumference of the filter medium. It is provided with a frame-side side surface portion that secures strength by surrounding the frame side, and a frame-side partition portion that connects the lower ends of the frame-side side surface portions to form a partition for an air flow path passing through the filter medium.

Then, when the filter member is installed in the inside / outside air case, the frame side partition portion of the frame portion is arranged at a position corresponding to the case side partition portion of the inside / outside air case, and is fitted into the case side partition portion. It is held.

Japanese Patent No. 5556705

In the blower unit disclosed in Patent Document 1, it is essential that the filter member includes a frame-side partition portion for partitioning a flow path through which air passes, and a frame-side side surface portion that covers the entire circumference of the filter medium. For example, it is difficult to make the filter member removable from the inside / outside air case without providing the frame portion provided with the frame-side partition portion and the frame-side side surface portion described above. On the other hand, there arises a problem that the weight of the filter member is increased by providing the frame portion, and the weight of the vehicle air conditioner is also increased accordingly.

The present invention has been made in consideration of the above-mentioned problems, and is for a vehicle in which a filter can be easily and surely installed on a case while reducing the weight and the number of parts with a simple configuration. The purpose is to provide an air conditioner.

In order to achieve the above object, an aspect of the present invention is a case having a plurality of air passages inside, a case-side partition plate for partitioning the air passages in the case, and air arranged so as to straddle the plurality of air passages. A filter having a filter for purifying the air flowing through the passage is provided, and a filter insertion port is provided inside the air passage and extends toward the insertion direction of the filter. In a vehicle air conditioner in which a filter accommodating portion is configured from a filter accommodating portion and the filter insertion port is closed by a lid member while the filter is inserted in the filter accommodating portion.
The filter is provided with a rigid portion at the end of the filtration portion orthogonal to the insertion direction, and also has a rigid portion.
A filter-side partition plate that faces the case-side partition plate inside the case and divides the inside of the filter into multiple spaces, and a lower surface that extends from the filter-side partition plate toward the filter insertion port and is downward in the direction of gravity of the filter. A filter partition member having a filter holding portion in contact with a part of the filter is attached to the filter.
In a state where the filter is housed in the filter accommodating portion, a filter partition member is attached to a part of the lower surface of the filter, and the remaining portion of the lower surface on which the filter partition member is not attached is held in contact with the filter guide.

According to the present invention, in a vehicle air conditioner including a case having a plurality of air passages, a case-side partition plate for partitioning the air passages and a filter provided so as to straddle the plurality of air passages are provided. A part of the lower surface of the filter is held by the filter guide extending along the insertion direction while being inserted into the inside through the filter insertion port opened in the case and housed in the filter accommodating portion. A filter partition member having a filter side partition plate facing the side partition plate and a filter holding portion extending to the filter insertion port side and contacting the lower surface of the filter is mounted.

Therefore, while a part of the lower surface of the filter is held along the insertion direction by the filter guide provided in the case, the remaining part of the lower surface can be held by the filter partition member, and the end portion of the filtration portion in the filter. By providing a rigid portion in the filter, the configuration for reinforcing the filter is abolished as compared with the vehicle air conditioner according to the prior art, which has a frame portion so as to surround the entire circumference of the filter medium in the filter. The filter partition member can be configured with the minimum number of components.

In addition, since the filter-side partition plate of the filter partition member is provided so as to face the case-side partition plate, it is possible to prevent air from mixing between a plurality of air passages partitioned by the case-side partition plate. Each can be independently and reliably distributed to the downstream side.

As a result, the filter can be easily and surely arranged in the case so as to face a plurality of air passages, and the configuration is simplified with respect to the frame portion used in the conventional vehicle air conditioner. This makes it possible to reduce the weight.

Further, although a part of the lower surface of the filter is not held by the filter guide, the lower surface of the filter is surely held by the filter holding portion of the filter partition member, so that the filtering portion of the filter acts on gravity. It is prevented from bending downward and is preferably held in a substantially horizontal state along the insertion direction.

According to the present invention, the following effects can be obtained.

That is, the case constituting the vehicle air conditioner is provided with a case-side partition plate for partitioning a plurality of air passages and a filter provided so as to straddle the plurality of air passages, and the filter is inserted from the filter insertion port to the inside. In the state of being inserted and housed in the filter accommodating portion, a part of the filter is held by the filter guide extending along the insertion direction, and the remaining part of the lower surface of the filter can be held by the filter partition member. .. Further, by providing a rigid portion at the end of the filtration portion orthogonal to the insertion direction in the filter, the filter is provided with a frame portion so as to surround the entire circumference of the filter medium in the filter, as compared with the vehicle air conditioner according to the prior art. It is possible to abolish the configuration for reinforcing the filter and configure the filter partition member with the minimum number of components.

As a result, the filter can be easily and surely arranged in the case so as to straddle a plurality of air passages, and the weight is reduced by simplifying the configuration with respect to the frame portion in the conventional vehicle air conditioner. Can be achieved.

It is an overall sectional view which shows the blower unit of the air conditioner for vehicles which concerns on 1st Embodiment of this invention. FIG. 2A is an enlarged cross-sectional view showing the vicinity of the filter in the blower unit of FIG. 1, and FIG. 2B is a cross-sectional view taken along the line IIB-IIB of FIG. 2A. FIG. 3A is an enlarged cross-sectional view showing the vicinity of the filter of the blower unit in the vehicle air conditioner according to the second embodiment, and FIG. 3B is a cross-sectional view taken along the line IIIB-IIIB of FIG. 3A. FIG. 4A is an enlarged cross-sectional view showing the vicinity of the filter of the blower unit in the vehicle air conditioner according to the third embodiment, and FIG. 4B is a cross-sectional view taken along the IVB-IVB line of FIG. 4A. FIG. 4C is an enlarged cross-sectional view showing the vicinity of the filter of the blower unit according to the modified example.

A preferred embodiment of the vehicle air conditioner according to the present invention will be described in detail below with reference to the accompanying drawings. In FIG. 1, reference numeral 10 indicates a vehicle air conditioner according to the first embodiment of the present invention.

The vehicle air conditioner 10 is connected to an air conditioner case (not shown) in which each air passage is provided inside and a side portion of the air conditioner case to blow the air to each passage in the air conditioner case. Blower unit 12 and the like. Inside the air conditioning case, an evaporator for cooling the supplied air, a heater core for heating the air, a damper mechanism for switching the flow of air flowing in each of the passages, and the like are provided.

As shown in FIG. 1, the blower unit 12 houses, for example, a drive motor 14, a centrifugal fan 16 that rotates under the driving action of the drive motor 14, the drive motor 14, and the centrifugal fan 16 and air. Includes a casing 18 having a passage portion through which the current flows, and a filter 20 housed inside the casing 18.

The drive motor 14 is provided, for example, in the lower part of the casing 18, and its rotating shaft 22 is arranged so as to project upward (in the direction of arrow A) in the casing 18. Then, the rotating shaft 22 is connected to the first and second fans 24 and 26 of the centrifugal fan 16 described later, and rotates integrally under the energizing action of the drive motor 14.

The centrifugal fan 16 includes a set of first and second fans 24 and 26 connected so as to be coaxial with the rotation shaft 22 of the drive motor 14, and the first fan 24 is on the drive motor 14 side (arrow). The second fan 26 is provided at the end of the rotating shaft 22 so as to be downward (in the B direction) and upward (in the direction of arrow A) with respect to the first fan 24. That is, the first and second fans 24 and 26 are arranged side by side along the vertical direction (arrows A and B directions) which is the axial direction of the rotating shaft 22.

The first and second fans 24 and 26 have a plurality of blades 28 that are equally spaced along the circumferential direction and an annular shroud 30 that is provided at one end of the blades 28 and connects the plurality of blades 28 to each other. Be prepared.

The casing 18 includes, for example, a fan case 32 in which the first and second fans 24 and 26 are housed, a blower case 34 provided on the outside so as to cover a part of the fan case 32, and the blower case 34. It includes a holder 36 provided at the bottom and holding the drive motor 14.

The fan case 32 has a first case portion 38 in which the first fan 24 is housed and a second case part 40 in which the second fan 26 is housed, and the first case part 38 and the second case part 40 is vertically divided via a separation wall 42 extending in the horizontal direction (arrows C1 and C2 directions), and is formed in a spiral shape along the outer peripheral side of the first and second fans 24 and 26. It also has first and second passages 44 and 46. That is, the fan case 32 is formed by a vertically divided structure.

Further, a first suction port 48 is opened at the center of the lower end of the first case portion 38, and an annular first ring-shaped first suction port 48 is folded inward inward at the outer peripheral edge portion of the first suction port 48. Bellmouth 50 is formed. The first bell mouth 50 is provided so as to cover the lower end of the shroud 30 of the first fan 24.

On the other hand, a second suction port 52 is opened in the center of the upper end of the second case portion 40 so as to be coaxial with the first suction port 48, and the outer peripheral edge portion of the second suction port 52 is directed inward. An annular second bell mouth 54 is formed that is folded back in an arc shape. The second bell mouth 54 is provided so as to cover the upper end of the shroud 30 of the second fan 26.

The first and second passages 44 and 46 extend in the horizontal direction while gradually increasing the cross-section of the passage toward the downstream, and the first and second discharge ports 56 and 58 are opened at the downstream end thereof, respectively. It is connected to the side of the air conditioning case (not shown) via.

As shown in FIGS. 1 and 2A, the blower case 34 has an outside air passage (air passage) divided in a width direction (arrows C1 and C2 directions) orthogonal to the axial direction (arrows A and B) of the rotating shaft 22. ) 60 and an inside air passage (air passage) 62. For example, the outside air passage 60 is formed so as to be on one side in the width direction (arrow C1 direction) and the inside air passage 62 is formed on the other side in the width direction (arrow C2 direction). Will be done.

Further, a partition wall (case side partition plate) 64 extending in the vertical direction (arrows A and B directions) is provided between the outside air passage 60 and the inside air passage 62, and the partition wall 64 provides the outside air passage 60 and the outside air passage 60. The inside air passages 62 are separated so as to extend along the vertical directions (arrows A and B). A filter hole 66 through which a filter 20 described later is inserted is formed in the partition wall 64, and the filter hole 66 is formed in a rectangular cross-sectional shape narrow in the vertical direction corresponding to the cross-sectional shape of the filter 20. Will be done. The filter hole 66 is slightly larger than the cross-sectional shape of the filter 20.

Then, an outside air introduction port 68 for taking in outside air is formed near the upper end of the outside air passage 60, and an inside air introduction port 70 for taking in the inside air in the vehicle interior is formed near the upper end of the inside air passage 62. In the width direction of the blower case 34 (arrows C1 and C2 directions), for example, the width dimension of the outside air passage 60 is formed larger than the width dimension of the inside air passage 62.

Further, in the ventilation case 34, the filter 20 is housed in the outside air passage 60 and the inside air passage 62 at a position below the outside air introduction port 68 and the inside air introduction port 70, and the filter 20 is housed in the outer wall of the inside air passage 62. A filter insertion port 72 for taking in and out 20 is formed. The filter insertion port 72 is provided so as to be on the vehicle interior side when the vehicle air conditioner 10 is mounted on the vehicle, and is provided in the width direction (arrows C1 and C2 directions) with respect to the filter hole 66 of the partition wall 64. ) Is provided in a straight line position.

The filter insertion port 72 is formed, for example, in a rectangular shape having a narrow cross section in the vertical direction corresponding to the cross-sectional shape of the filter 20 described later, and a cap (lid member) 74 is attached from the outside of the blower case 34. It is blocked.

The cap 74 has a plate-shaped base portion 76 formed larger than the opening area of the filter insertion port 72, and an insertion portion 78 protruding from the base portion 76, and the insertion portion 78 is the filter insertion port. By being inserted into 72 and fitted to the inner surface of the opening, the filter insertion port 72 is fixed in a state of being closed by the base portion 76, and the cap 74 is removed outward with respect to the blower case 34. The filter insertion port 72 is opened.

Then, as shown in FIG. 1, the inside air passage 62 is connected to the upper end of the second case portion 40 by providing the fan case 32 at a position below the filter insertion port 72 (in the direction of arrow B). It communicates with the inside of the second case portion 40 via the second suction port 52.

On the other hand, the outside air passage 60 is provided so that a part of the fan case 32 faces the inside thereof, and after wrapping around the outside of the fan case 32, extends substantially horizontally along the bottom wall of the blower case 34. Then, it communicates with the first suction port 48 of the fan case 32.

Further, as shown in FIGS. 1 to 2B, the outside air passage 60 is located at a position between the outside air introduction port 68 and the fan case 32 in a width direction (horizontal direction) orthogonal to the extending direction of the outside air passage 60. A pair of guide portions (filter guides) 80 extending in the direction (direction, arrow C1 and C2 directions) are provided.

The guide portion 80 is formed in a straight line from the outer wall of the outside air passage 60 to the partition wall 64 along the width direction (arrows C1 and C2 directions) which is the insertion direction of the filter 20, and the upper surface thereof is the lower end of the filter hole 66. It is formed so as to have substantially the same height as the above, and is provided so as to project inward from both side walls of the blower case 34 in the depth direction (in the direction of arrow D in FIG. 2B) orthogonal to the width direction. Then, the filter 20 is held on the upper surface of the guide portion 80 by placing the filtration portion 84 of the filter 20 described later on the upper surface of the guide portion 80.

As shown in FIG. 1, the holder 36 is formed, for example, having a substantially U-shaped cross section, and a part of the drive motor 14 is inserted and held inside the holder 36, and a hole opened in the bottom wall of the blower case 34. It is provided so as to close the portion 82. Then, with the rotating shaft 22 of the drive motor 14 inserted into the blower case 34, the holder 36 is fixed to the bottom wall of the blower case 34 by a fastening bolt (not shown).

As shown in FIGS. 1 to 2B, the filter 20 is integrally attached to, for example, a filtration unit 84 formed by bending a plurality of non-woven fabrics in a wavy shape and a part of the filtration unit 84. It is provided with a partition member (filter partition member) 86, and is formed in a rectangular cross section narrow in the vertical direction.

The filtration unit 84 is formed so that its creases are on the upper surface and the lower surface, is diffracted a plurality of times in the insertion direction (arrow C1 direction), and is orthogonal to the insertion direction in the depth direction (arrow D in FIG. 2B). A pair of guide tapes (rigid parts) 88 are attached to both sides of the direction). The guide tape 88 is formed in a plate shape having a rigidity higher than that of the filtration unit 84, and is provided so as to project on the same surface as the lower surface 84a of the filtration unit 84 or slightly downward.

The partition member 86 is formed of, for example, a resin material, and is provided so as to face the inside air passage 62 with the filter 20 housed in the blower case 34. The partition member 86 is separated from the first wall portion (filter side partition plate) 90 housed in the filter hole 66 so as to face the partition wall 64 by a predetermined distance from the first wall portion 90. It is composed of a second wall portion 92 facing the insertion port 72 and a connecting portion (filter holding portion) 94 connecting the first wall portion 90 and the second wall portion 92.

The first wall portion 90 extends in the vertical direction like the partition wall 64, is formed lower than the height dimension of the filter hole 66, and is formed upward between the folds of the filter portion 84 opened downward. It is inserted toward. As a result, the first wall portion 90 is held with respect to the filtration portion 84, and the inside of the filtration portion 84 is divided into two in the width direction (arrows C1 and C2 directions).

The second wall portion 92 is formed substantially parallel to the first wall portion 90 and its upper end is formed higher than the first wall portion 90 (in the direction of arrow A). The first and second wall portions 90 and 92 are formed so as to have substantially the same length as the filter insertion port 72 and the filter hole 66 along the depth direction orthogonal to the insertion direction of the filter 20 (arrow C1 direction). ..

A plurality of connecting portions 94 are provided, for example, in the depth direction of the first and second wall portions 90 and 92 (in the direction of arrow D in FIG. 2B), and the lower end of the first wall portion 90 and the second wall portion 92. The lower ends are connected to each other. That is, as shown in FIG. 2A, the partition member 86 is formed from the first and second wall portions 90 and 92 and the connecting portion 94 in a U-shaped cross section.

Then, in the partition member 86, the connecting portion 94 abuts on the lower surface 84a of the filtering portion 84, the first wall portion 90 is inserted from below between the adjacent creases in the filtering portion 84, and the second wall portion 92 is integrally held with the filtration unit 84 so as to cover one end of the filtration unit 84 on the front side (arrow C2 direction) of the filter 20 in the insertion direction.

The vehicle air conditioner 10 according to the first embodiment of the present invention is basically configured as described above, and then a case where the filter 20 is attached to the blower unit 12 will be described. ..

First, the cap 74 is removed from the casing 18 of the blower unit 12 so that the filter insertion port 72 is opened, and an operator (not shown) has one end of the filter 20 to which the partition member 86 is mounted on the front side in the insertion direction (arrow C2 direction). ), And the filter 20 is inserted into the filter insertion port 72 substantially horizontally from the other end side (direction of arrow C1) where the partition member 86 is not attached and only the filtering portion 84 is provided. I will go.

Then, after the filter 20 is inserted from the other end side through the inside air passage 62 into the filter hole 66 of the partition wall 64, the guide tape 88 and the lower surface are on the upper surface of the pair of guide portions 80 provided in the outside air passage 60. 84a abuts and slides while being inserted toward the back side in the insertion direction (arrow C1 direction).

By further inserting the filter 20 toward the back side in the insertion direction (direction of arrow C1), the other end reaches the outer wall of the outside air passage 60, and the first wall portion 90 of the partition member 86 partitions in the filter hole 66. It is arranged substantially linearly with the wall 64 in the vertical direction, and the second wall portion 92 is positioned so as to face the filter insertion port 72, and is held substantially horizontally by the guide portion 80 so as to straddle the outside air passage 60 and the inside air passage 62. To. The portion in which the filter 20 is accommodated and held in the blower case 34 is the filter accommodating portion.

At this time, the filter 20 is held by the guide portion 80 on the outside air passage 60 side with respect to the casing 18, and is held substantially horizontally only by the partition member 86 on the inside air passage 62 side.

Finally, by attaching the cap 74 so that the insertion portion 78 is inserted into the filter insertion port 72 of the casing 18, the filter insertion port 72 is closed while the filter 20 is housed inside the casing 18. The filter 20 is attached.

Next, the operation of the vehicle air conditioner 10 including the blower unit 12 in which the filter 20 is mounted on the casing 18 as described above will be described.

First, the first and second fans 24 and 26 of the centrifugal fan 16 connected to the rotating shaft 22 are integrally rotated by driving the drive motor 14 based on a control signal from a controller (not shown). As a result, the inside air inside the vehicle is taken into the inside air passage 62 through the inside air introduction port 70 of the blower case 34, and at the same time, the outside air outside the vehicle is taken into the outside air passage 60 through the outside air introduction port 68.

Then, the air in the inside air passage 62 flows toward the second suction port 52 side under the rotational action of the second fan 26, and passes through the filtration portion 84 of the filter 20 to remove dust and the like contained in the air. After being removed, it is sucked into the inside of the second fan 26 and the second case portion 40 through the second suction port 52. This air is guided outward in the radial direction of the second fan 26 in the second case portion 40, then is supplied to the second passage 46, and flows downstream along the second passage 46. 2 It is sent from the discharge port 58 to the air conditioning case of the vehicle air conditioner 10 (not shown).

Further, the air in the outside air passage 60 flows toward the first suction port 48 side under the rotational action of the first fan 24, and passes through the filtration portion 84 of the filter 20 to remove dust and the like contained in the air. After being removed, it is sucked into the inside of the first fan 24 and the first case portion 38 through the first suction port 48. Then, in the first case portion 38, the air taken in is guided outward in the radial direction of the first fan 24, and then supplied to the first passage 44 to the downstream side along the first passage 44. It flows and is sent from the first discharge port 56 to the air conditioning case of the vehicle air conditioner 10 (not shown).

At this time, the filter hole 66 opened in the partition wall 64 of the casing 18 and inserted through the filter 20 is suitably covered by the first wall portion 90 of the partition member 86, and the inside of the filtration portion 84 is the outside air passage 60 and the outside air passage 60. Since it is divided into two according to the inside air passage 62, the inflow of the inside air of the inside air passage 62 to the outside air passage 60 side is suppressed through the filter hole 66, and at the same time, the outside air of the outside air passage 60 to the inside air passage 62 side is suppressed. The inflow is also suitably suppressed.

As described above, in the first embodiment, in the blower unit 12 of the vehicle air conditioner 10 having the casing 18 separated into the outside air passage 60 and the inside air passage 62 by the partition wall 64, the outside air passage 60 and the above are described. A filter 20 is provided so as to straddle the inside air passage 62, and the filter 20 includes a filtration unit 84 for purifying passing air and guide tapes 88 provided on both sides of the filtration unit 84 to maintain rigidity. At the same time, the partition member 86 is integrally mounted at the position of the filter 20 facing the inside air passage 62, and the filter of the partition wall 64 is connected to the filtration portion 84 with the first wall portion 90 of the partition member 86. The lower surface 84a of the filtration portion 84 is held by the connection portion 94 inserted into the hole 66 and connected to the first wall portion 90.

Therefore, while the guide portion 80 provided in the casing 18 so as to face the outside air passage 60 holds a part of the filter 20 in the horizontal direction, the partition member 86 mounted so as to face the inside air passage 62 covers the filtration portion 84. By making it possible to hold the lower surface 84a of the filter, the weight is reduced by simplifying the configuration as compared with the vehicle air conditioner according to the prior art in which the frame portion is provided so as to surround the filter medium of the filter over the entire circumference. Can be transformed into.

Further, by providing the first wall portion 90 of the partition member 86 so as to face the partition wall 64 that separates the outside air passage 60 and the inside air passage 62, the outside air flowing through the outside air passage 60 and the inside air flowing through the inside air passage 62 are provided. Is prevented from being mixed through the filter hole 66 through which the filter 20 is inserted, and the outside air and the inside air can be separately taken in by the first and second fans 24 and 26 and distributed to the downstream side. ..

As a result, the filter 20 can be easily and surely arranged in the casing 18 so as to face the outside air passage 60 and the inside air passage 62, for reinforcing the filter used in the conventional vehicle air conditioner. It is possible to reduce the weight by abolishing the configuration and using the partition member 86 composed of the minimum number of components.

Further, the filter 20 is not held with respect to the casing 18 in the inside air passage 62, but the lower surface 84a of the filtration part 84 is preferably held below the gravity direction by the connecting part 94 of the partition member 86. Therefore, it is possible to prevent the filtration unit 84 from being bent by gravity, and it is possible to preferably hold the filtration unit 84 in a substantially horizontal state.

Next, the vehicle air conditioner 100 according to the second embodiment is shown in FIGS. 3A and 3B. The same components as those of the vehicle air conditioner 10 according to the first embodiment described above are designated by the same reference numerals, and detailed description thereof will be omitted.

In the vehicle air conditioner 100 according to the second embodiment, in the casing 104 of the blower unit 102, the second guide portion 108 inclined with respect to the first guide portion 106 provided in the outside air passage 60 is passed through the inside air passage. It is different from the vehicle air conditioner 10 according to the first embodiment in that it is provided in 62.

In the outside air passage 60 of the casing 104, a first guide portion (filter guide) 106 extending in a width direction (horizontal direction) orthogonal to the extending direction of the outside air passage 60 is formed, and is formed from the outer wall of the outside air passage 60. It is formed in a straight line along the width direction up to the partition wall 64.

On the other hand, the inside air passage 62 extends from the end of the first guide portion 106 on the inside air passage 62 side (direction of arrow C2) toward the outer wall of the inside air passage 62 opened by the filter insertion port 110. Is formed.

The second guide portion 108 is connected to the first guide portion 106 on the side of the first guide portion 106, which is the back side of the filter 20 in the insertion direction (arrow C1 direction), and is connected to the front side of the filter 20 in the insertion direction (arrow C2). It is formed so as to gradually incline downward (in the direction of arrow B) at a predetermined angle toward the filter insertion port 110 side which is the direction).

Further, in the second guide portion 108, the end portion on the filter insertion port 110 side is connected to the outer wall of the inside air passage 62, and the lower end of the filter insertion port 110 is opened so as to face the second guide portion 108. There is. That is, the filter insertion port 110 has a large opening downward as compared with the filter insertion port 72 in the vehicle air conditioner 10 according to the first embodiment described above. Then, the filter insertion port 110 is closed by attaching the cap 112.

Further, the angle θ formed by the first guide portion 106 and the second guide portion 108 is set to be 180 ° or more on the filter 20 side (direction of arrow A) (θ ≧ 180 °).

Then, one end of the filter 20 on the back side in the insertion direction (arrow C1 direction) is upward (arrow A direction), and the other end on the front side in the insertion direction (arrow C2 direction) of the filter 20 gripped by the operator (not shown). By inserting one end of the filter 20 through the open filter insertion port 110 in a state where the portion is inclined downward (in the direction of arrow B) (see the two-point chain line shape in FIG. 3A), the said The filter 20 is inserted into the inside of the inside air passage 62 in a state where one end side of the filter 20 is inclined by a predetermined angle along the second guide portion 108, and after the one end reaches the filter hole 66, the filter 20 is substantially horizontal. The other end side is lifted upward and rotated so as to be.

By rotating the filter 20 in this way to bring it into a substantially horizontal state and then inserting it further toward the back side in the insertion direction (direction of arrow C1), the filter 20 (filter unit 84) can be inserted in the outside air passage 60. The lower surface 84a is held substantially horizontally by the first guide portion 106, and the connecting portion 94 of the partition member 86 is located at the end of the inside air passage 62 on the back side in the insertion direction (arrow C1 direction) of the second guide portion 108. Hold in contact.

As described above, in the second embodiment, the second guide portion 108 is provided in the inside air passage 62 with respect to the first guide portion 106 provided substantially horizontally in the outside air passage 60 inside the casing 104. By forming the second guide portion 108 in a direction away from the first guide portion 106, that is, so as to incline downward toward the filter insertion port 110 side, the filter 20 can be moved into the casing 104. At the portion where the angle changes from the second guide portion 108 to the first guide portion 106 when the filter 20 is inserted, the filter 20 is rotated so as to be substantially horizontal from the tilted state and accommodated.

As a result, for example, even if the cap 112 is removed from the filter insertion port 110, the filter 20 will fall out from the filter insertion port 110 along the second guide portion 108 under the action of gravity. And, in the state where the filter 20 is housed, the cap 112 can be easily attached to the filter insertion port 110.

Further, by bringing the connecting portion 94 of the partition member 86 into contact with the second guide portion 108 to hold the partition member 86, the connecting portion 94 does not come into contact with the first guide portion 106, so that the filter 20 Is housed inside the casing 104, the filtration portion 84 of the filter 20 can be reliably brought into contact with the first guide portion 106 and held substantially horizontally, and the filter 20 can be held substantially horizontally. 2 Although it is in a non-contact state with the guide portion 108, the lower surface 84a of the filtration portion 84 is preferably held by the connection portion 94 of the partition member 86, so that the filtration portion 84 may be bent by gravity. It is avoided and kept almost horizontal.

Next, the vehicle air conditioner 120 according to the third embodiment is shown in FIGS. 4A and 4B. The same components as those of the vehicle air conditioner 100 according to the second embodiment described above are designated by the same reference numerals, and detailed description thereof will be omitted.

In the vehicle air conditioner 120 according to the third embodiment, the partition member 86 mounted on the filter 20 is held in contact with the partition wall 126 in the filter hole 66 in the casing 124 of the blower unit 122. In that respect, it differs from the vehicle air conditioner 100 according to the second embodiment.

The casing 124 is held in the state where the filter 20 is housed by the upper end of the partition wall 126 in the filter hole 66 coming into contact with the connecting portion 94 in the partition member 86, and is provided in the connecting portion 94 and the inside air passage 62. The second guide portion 108 is provided so as not to be in contact with the second guide portion 108 (see FIG. 4B).

As described above, in the third embodiment, in the casing 124, the second guide portion provided in the inside air passage 62 is provided with respect to the first guide portion 106 provided substantially horizontally in the outside air passage 60. The 108 is formed so as to be inclined downward toward the filter insertion port 110 side, and the partition member 86 is fixed by bringing the partition member 86 into contact with the partition wall 126.

As a result, for example, even if the cap 112 is removed from the filter insertion port 110, the filter 20 will fall out from the filter insertion port 110 along the second guide portion 108 under the action of gravity. And, in the state where the filter 20 is housed, the cap 112 can be easily attached to the filter insertion port 110.

Further, by holding the connecting portion 94 of the partition member 86 in contact with the partition wall 126 in the filter hole 66, the connecting portion 94 does not come into contact with the first guide portion 106, so that the filter 20 is casing. In the state of being housed inside the 124, the filtration portion 84 of the filter 20 can be reliably brought into contact with the first guide portion 106 and held substantially horizontally.

Further, the filter 20 is in a non-contact state with respect to the second guide portion 108, but the lower surface 84a of the filtration portion 84 is preferably held by the connection portion 94 of the partition member 86, so that the filtration portion 84 It is possible to prevent it from bending due to gravity and to hold it substantially horizontally.

Further, like the blower unit 132 in the vehicle air conditioner 130 shown in FIG. 4C, the outer wall of the inside air passage 62 facing the filter insertion port 110 in the casing 134 is above the filter insertion port 110 and on the outside air passage 60 side (arrow). A first protruding portion (second rib) 136 protruding in the C1 direction) is provided, and the cap 138 protrudes inward (in the direction of arrow C1) at a position between the insertion portions 78 with respect to the base portion 76. The second protruding portion 140 (first rib) is formed, and in a state where the filter 20 is housed in the casing 134, the upper surface of the other end portion of the filter 20 is pressed by the first protruding portion 136, and the lower surface 84a is pressed. 2 It may be configured to be pressed by the protruding portion 140.

With such a configuration, the other end side of the filter 20 which is in a non-contact state with respect to the second guide portion 108 in the casing 134 is sandwiched between the first protruding portion 136 and the second protruding portion 140. This makes it possible to hold and fix it more securely.

It should be noted that the vehicle air conditioner according to the present invention is not limited to the above-described embodiment, and of course, various configurations can be adopted without departing from the gist of the present invention.

10, 100, 120, 130 ... Vehicle air conditioners 12, 102, 122, 132 ... Blower units 18, 104, 124, 134 ... Casing 20 ... Filter 60 ... Outside air passage 62 ... Inside air passage 64, 126 ... Partition wall 66 ... Filter holes 72, 110 ... Filter insertion ports 74, 112, 138 ... Cap 80 ... Guide part 84 ... Filter part 86 ... Partition member 90 ... First wall part 92 ... Second wall part 94 ... Connection part 106 ... First guide part 108 ... 2nd guide part 136 ... 1st protruding part 140 ... 2nd protruding part

Claims (4)

It has a case having a plurality of air passages inside, a case-side partition plate for partitioning the air passages in the case, and a filtering unit arranged so as to straddle the plurality of air passages to purify the air flowing through the air passages. The filter is accommodated from a filter insertion port that opens in the wall surface of the case and into which the filter is inserted, and a filter guide that is provided inside the air passage and extends in the insertion direction of the filter. In a vehicle air conditioner in which the filter insertion port is closed by a lid member in a state where the filter is inserted into the filter accommodating portion.
The filter is provided with a rigid portion at the end of the filtration portion orthogonal to the insertion direction, and also has a rigid portion.
A filter-side partition plate that faces the case-side partition plate inside the case and divides the inside of the filter into a plurality of spaces, and extends from the filter-side partition plate toward the filter insertion port in the filter. A filter partition member having a filter holding portion in contact with a part of the lower surface downward in the direction of gravity is attached to the filter.
In a state where the filter is housed in the filter accommodating portion, the filter partition member is mounted on a part of the lower surface of the filter, and the remaining portion of the lower surface on which the filter partition member is not mounted is the filter guide. Vehicle air conditioners that are held in contact. In the vehicle air conditioner according to claim 1,
The filter guide includes a first guide portion provided in an air passage on the back side in the insertion direction of the filter, and a first guide portion.
A second guide portion provided between the wall surface of the air passage on the filter insertion port side and the first guide portion and extending in a direction different from that of the first guide portion.
With
In a state where the filter is housed in the filter housing part, the filter is housed in parallel with the first guide part, the filter partition member comes into contact with the second guide part, and the first guide is on the filter side. A vehicle air conditioner set so that the angle formed by the portion and the second guide portion is 180 ° or more. In the vehicle air conditioner according to claim 1,
The filter guide includes a first guide portion provided in an air passage on the back side in the insertion direction of the filter, and a first guide portion.
A second guide portion provided between the wall surface of the air passage on the filter insertion port side and the first guide portion and extending in a direction different from that of the first guide portion.
With
In a state where the filter is housed in the filter housing part, the filter is housed in parallel with the first guide part, the filter partition member comes into contact with the case side partition plate, and the first guide is housed on the filter side. A vehicle air conditioner set so that the angle formed by the portion and the second guide portion is 180 ° or more. In the vehicle air conditioner according to claim 2 or 3.
The lid member includes a first rib that comes into contact with the lower surface of the filter holding portion when the filter is housed in the filter accommodating portion.
The filter accommodating portion is provided with a second rib at a position facing the second guide portion.
A vehicle air conditioner in which the filter is sandwiched and fixed between the first rib and the second rib in a state of being housed in the filter accommodating portion.

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