JP2853437B2 - Vehicle air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle air conditioner having an air purifying filter for purifying air introduced from an air inlet into a blower unit.

[0002]

2. Description of the Related Art This type of vehicle air conditioner is, for example, shown in FIG.
As shown in FIG. 3, the air conditioner includes an intake flange 10a forming the outside air introduction port 11, and a blower unit 100 connected to the intake flange 10a. The blower unit 100 includes an intake box 10 attached to an intake flange 10 a so as to communicate with the outside air inlet 11, and a blower case 20 integrally connected to the intake box 10.
0 is provided with an inside air inlet 12 for introducing vehicle interior air, and an intake door 13 for opening and closing each of the inlets 11 and 12 to select outside air introduction and inside air circulation. A blower fan 21 is provided in the blower case 20,
By the operation of the blower fan 21, the inlets 11, 12
Then, the air introduced into the blower unit 100 is supplied into the vehicle interior. As such an air conditioner, there is an air conditioner provided with an air purification filter 50 for filtering and purifying air introduced from the introduction ports 11 and 12, but conventionally, this filter 50 has a blower as shown in the figure. Case 20
It was designed to be mounted in the upper communication opening 20a (see, for example, JP-A-63-20214). Although not shown, for example, a filter mounting portion is formed inside the blower unit or the cooling unit, and the filter 50 described above is mounted on the mounting portion.

[0003]

By the way, when the filter 50 as described above is provided, the resistance of the air introduced from each inlet when flowing through each unit constituting the air conditioner increases. The amount of air blown into the vehicle interior is reduced. Generally, the inside air circulation is often selected when it is desired to rapidly cool the room, and therefore, a decrease in the amount of air blown out during the inside air circulation is a serious problem. On the other hand, the filter 50 is for purifying the outside air and sending it into the vehicle interior, and it is not necessary to originally filter the air in the vehicle interior introduced from the inside air introduction port. For this reason, it is desirable to prevent the air introduced from the inside air inlet from passing through the filter 50 during the inside air circulation. However, as shown in FIG.
When the filter 50 is provided in the inner air inlet 0a, when the inside air introduction is selected, the vehicle interior air introduced from the inside air inlet 12 also passes through the filter 50. Performance may not be obtained. Further, in the method of mounting the filter 50 inside the blower unit or the cooling unit, the filter mounting portion is required as described above, so that the filter cannot be mounted on an existing air conditioner having no such mounting portion. There is.

An object of the present invention is to prevent the air introduced from the inside air introduction port from passing through the filter during the inside air circulation, and to make it possible to attach the filter to an existing air conditioner without a dedicated filter attachment portion. An object of the present invention is to provide a vehicle air conditioner.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1 showing an embodiment, the present invention is directed to an intake flange 10a having an opening formed in a cowl box 1 and forming an outside air inlet 11. , An inside air inlet 12 is formed, and an intake box 13 that opens and closes the inside air inlet 12 and the outside air inlet 11 to switch between outside air introduction and inside air circulation, and is connected to the intake flange 10a. And a blower unit 100 that houses the blower fan 21 and is connected to the intake box 10. The air purification filter 30 is disposed so as to cover the outside air inlet 11. The present invention is applied to an air conditioner for a vehicle that supplies air introduced from 11 and 12 into a vehicle interior by a blower fan 21 and has the following configuration. To solve the above problems. The air purifying filter 30 has a filter case 31 integrally formed with a holding portion for holding a filter medium 32 (FIG. 3) and a supporting portion formed to protrude laterally at an upper portion of the holding portion.
The holding portion of the filter case is fitted into the opening of the intake flange 10a such that the filter medium 32 is within the standing height of the intake flange 10a.
It is configured to be supported by the upper edge of the opening 0a. In particular, in the invention of claim 2, one end of a tape 34 hanging down to the filter 30 is fixed. This tape 34
Is a holding portion that is pulled in order to support the filter 30 once inserted into the cowl box 1 from the outside air introduction port 11 into the cowl box 1 through the blower case 20 and the intake box 10 in order from the vehicle interior and supported by the intake flange 10a, An adhesive portion 34a for fixing the filter 30 supported by the intake flange 10a is a tape 34.
It is provided in. As shown in FIG. 8, the third aspect of the present invention is to extend a part of a sheet-like
a, 84b.

[0006]

Since the filter 30 is provided so as to cover the outside air inlet 11, when the outside air introduction is selected, the outside air passes through the filter 30 and is filtered, but when the inside air introduction is selected, the vehicle interior air does not pass through the filter 30. . Therefore, the flow resistance of the air is not increased by the filter 30 during the circulation of the internal air, and the amount of the blown air is not reduced. Further, the holding portion of the filter case is fitted into the opening of the intake flange 10a so that the filter medium 32 fits within the standing height of the intake flange 10a, and in this state, the supporting portion of the filter case 31 is connected to the opening of the intake flange 10a. Since the filter is supported by the upper edge, a dedicated filter mounting portion is not required, and the filter 30 can be mounted on an existing air conditioner having no such mounting portion. In particular, in the invention of claim 2, the filter 3
0 into the cowl box 1 and then tape 3
The filter 30 can be easily supported by the intake flange 10a by pulling the filter 4 inward of the intake box 10. Further, the filter 30 is connected to the intake flange 1.
The filter 30 can be fixed by adhering the adhesive portion 34a of the tape 34 to, for example, the support members 14a and 14b (FIG. 4) after the tape 30 is supported at 0a, so that the filter 30 can easily come off due to vibration or the like. Absent. According to the third aspect of the present invention, since the tapes 84a and 84b are formed by extending a part of the sheet-like filtering material 84,
This eliminates the need for attaching a separate tape to the filter 80, and prevents the tapes 84a and 84b from being easily detached from the filter 80 when the tapes 84a and 84b are pulled, so that the filter 80 can be securely attached. Become.

In the means and means for solving the above problems which explain the constitution of the present invention, the drawings of the embodiments are used to make the present invention easy to understand. However, the present invention is not limited to this.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a side sectional view showing a main part of a vehicle air conditioner according to the present invention, and the same components as those in FIG. 9 are denoted by the same reference numerals. Reference numeral 1 denotes a cowl box, 2 denotes an engine hood, 3 denotes a front shield glass, 4 denotes an instrument panel, and 10a denotes an intake flange erected inside the cowl box 1, and the intake flange 10a forms a long hole (FIG. 5). ) Is formed in the cowl box 1.

Reference numeral 100 denotes a blower unit constituting an air conditioner provided between the vehicle interior and the engine room. The blower unit 100 is connected to the intake flange 10a via a seal member 70. It has an intake box 10 and a blower case 20 integrally connected to a lower portion of the intake box 10. The intake box 10 has an inside air inlet 12 for introducing vehicle interior air, Mouth 11,
An intake door 13 that opens and closes the door 12 is provided.
The intake door 13 is switchable between an outside air introduction position shown by a solid line in the drawing and an inside air circulation position shown by a two-dot chain line. When the intake door 13 is at the outside air introduction position, outside air flowing from the cowl box 1 flows through the outside air introduction port 11. It is guided into the intake box 10. When the intake door 13 is in the inside air circulation position, the air in the vehicle interior is
From the intake box 10.

An opening 20a is formed in the upper part of the blower case 20, and the intake box 10 and the blower case 20 communicate with each other through the opening 20a. At the bottom of the blower case 20, an opening 20b for mounting a blower fan is provided.
Is formed, and a blower fan 21 is detachably attached to the opening 20b. That is, the blower fan 21 includes a motor unit 21a that houses a blower motor and a fan 21b that is rotated by the blower motor.
b so that the motor part 21 is positioned within the blower case 20.
a is attached to the periphery of the opening 20b from the vehicle interior side. By the operation of the blower fan 21, the air guided from the intake box 10 is guided to a cooling unit and a heater unit (not shown) through the blower case 20, and is blown into the vehicle interior.

Reference numeral 30 denotes a filter for air purification. This type of filter is conventionally provided in the upper opening 20a of the blower case 20 as shown in FIG. 9, but in the present embodiment, it is provided with an intake flange 10a. It is provided in the formed outside air inlet 11. 2 is a perspective view showing the filter 30, FIG. 3 is a cross-sectional view taken along the line III-III of FIG. 2 showing a state where the filter 30 is attached to the outside air inlet 11, and FIG.
FIG. 4 is a sectional view taken along line IV-IV. 31 is a filter case,
Top plate 31a and bottom plate 31b of this filter case 31
Are each formed with an opening. A flange 31c is formed on the entire peripheral surface of the upper plate 31a.
1c is supported by the intake flange 10a. Inside the filter case 31, a sheet-like filtering material 32 is provided in a state of being bent at a plurality of positions as shown in the drawing,
The outside air introduced from the outside air inlet 11 is filtered by the filter medium 32. On the outer peripheral surface of the filter case 31,
A seal material 33 is extrapolated over the entire circumference at a position located below the flange 31c.

One end of a tape 34 is fixed to substantially the same location on each of both sides in the longitudinal direction of the filter case 31. This tape 34 has an adhesive portion 34 at the other end.
a, a protective paper 34b is initially attached to the adhesive portion 34a.
Is sticky.

Next, the filter 30 constructed as described above is used.
The procedure for attaching the to the outside air inlet 11 will be described. First, the intake door 13 is switched to the outside air introduction position (the position indicated by the solid line in FIG. 1), and then a glove box (not shown) in the vehicle interior, an instru- ment cover left, a glove box inner cover, an inside finisher, and an instru- ment. Are also removed in order.
As a result, the blower fan 21 can be detached from the vehicle interior.

Next, the blower fan 21 is connected to the blower case 2
After removing the filter 30 from the lower surface opening 20b
Through the blower case 20, and further open the upper surface opening 20a.
After that, the filter 30 is turned upright as shown in FIG. 5 and is once taken out of the cowl box 1 from the outside air inlet 11 as shown in FIG. And filter 3
6, the one end of the filter 30 is pressed against the wall of the intake flange 10a on the vehicle interior side, and then a pair of tapes 34 is gripped and this is inserted into the intake box as shown in FIG. Pull to the 10 side. As a result, as shown in FIGS. 3 and 4, the sealing material 33 of the filter 30 fits into the intake flange 10a, and the lower surface of the flange 31c of the filter case 31 contacts the upper surface of the intake flange 10a. It is supported by the intake flange 10a while covering the outside air inlet 11. At this time, since the outer peripheral surface of the seal member 33 is in close contact with the inner peripheral surface of the intake flange 10a as shown in the drawing, the filter 30 and the intake flange 1
0a, dust and the like are prevented from entering the intake box 10.

Thereafter, the adhesive portions 34a of the pair of tapes 34
Then, the protective paper 34b is removed, and the adhesive portion 34a is bonded to the support members 14a and 14b fixed in the intake box 10, as shown in FIG. Thus, even if vibration occurs in the vehicle, the filter 30 does not easily come off from the outside air inlet 11. In order to replace the filter 30, the tape 34 is attached to the support members 14a, 14b in the state shown in FIG.
Then, the bottom plate 31b of the filter case 31 is pushed upward to remove the filter 30 from the intake flange 10a as shown in FIG.
Is drawn into the intake box 10 through the outside air inlet 11 and then taken out of the vehicle through the blower case 20. Thereafter, a new filter 30 is attached to the outside air inlet 11 in the same manner as described above.

As described above, in this embodiment, the filter 30
Is provided so as to cover the outside air introduction port 11, so that when outside air introduction is selected, outside air passes through the filter 30 and is filtered, so that clean air can be supplied into the vehicle interior. On the other hand, when the inside air introduction is selected, the vehicle interior air introduced from the inside air introduction port 12 does not pass through the filter 30 and is not filtered.
Accordingly, the filter 30 does not increase the air flow resistance and does not reduce the amount of blown air during internal air circulation requiring strong air conditioning performance, so that desired air conditioning performance can be maintained. The filter 30
Is supported by the intake flange 10a, so a dedicated filter mounting portion is not required, and the filter 30 can be mounted on an existing air conditioner that does not have this type of mounting portion. In addition, since the cabin air introduced from the inside air inlet 12 is already filtered by the filter 30 when it is introduced as outside air, there is no need to filter again, and therefore, the cabin air does not pass through the filter 30. There is no problem.

FIG. 8 shows another embodiment, in which a filter member 8 provided in a filter case 81 of a filter 80 is provided.
4 are used as tapes. The other ends of the tapes 84a and 84b are suspended downward from the lower surface of the bottom plate 81b as shown in the figure, and an adhesive 85 is applied to the tip thereof, and a protective paper 86 is attached on the adhesive 85. This tape 84
The filter 80 can be attached in the same manner as described above using the a and 84b. According to this embodiment, in particular,
The time and effort for newly attaching a separate tape can be omitted, and when the filter 80 is attached to the intake flange 10a, even if the tapes 84a and 84b are pulled quite strongly, the tapes 84a and 84b do not come off the filter case 81, and the filter 80 is securely attached. It becomes possible.

The shapes of the outside air inlet and the filter, and the configuration of the filter are not limited to the embodiment. Further, if the filter can be attached to the outside air inlet very easily, the tape is not necessary.

[0019]

According to the present invention, the filter for air purification is supported by the intake flange so as to cover the outside air inlet formed by the intake flange. Therefore, when the introduction of outside air is selected, the outside air passes through the filter. However, when the inside air introduction is selected, the vehicle interior air does not pass through the filter. Therefore, the desired air-conditioning performance can be maintained without the amount of air blown out being reduced by the filter during the internal air circulation in which strong air-conditioning performance is required. In addition, since the support portion of the filter case is supported by the upper edge of the intake flange in a state where the main body of the filter (the filter material and the holding portion of the filter case holding the filter material) is fitted into the opening of the intake flange, the exclusive mounting is performed. The filter can be mounted without using any member, which is advantageous in terms of mounting space and cost. Further, the amount of protrusion of the filter from the intake flange can be minimized, which is further advantageous in terms of space. In particular, as long as the thickness of the filter material is within the range of the vertical height of the intake flange, the projection amount of the filter does not change even if the thickness of the filter material is increased. There is no disadvantage, and there is no hindrance to mounting the filter from the vehicle interior side. According to the invention of claim 2, a tape is provided on the filter, the tape is pulled out from the outside air inlet into the cowl box, and then the tape is pulled to support the filter on the intake flange. After the filter is supported, the tape is adhered to the support member. As a result, the filter can be easily supported on the intake flange.
The filter does not come off easily due to vibration or the like after fixing. According to the third aspect of the present invention, since the tape is formed by extending a part of the sheet-like filter material, the time and effort for attaching a separate tape to the filter can be omitted, and the tape can be easily removed from the filter. The filter can be securely attached without coming off.

[Brief description of the drawings]

FIG. 1 is a diagram showing one embodiment of a vehicle air conditioner according to the present invention.

FIG. 2 is a perspective view showing a filter attached to the air conditioner.

FIG. 3 is a half sectional view taken along the line III-III of FIG. 2, showing a state in which the filter is mounted on an intake flange.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;

FIG. 5 is a diagram showing a procedure for mounting a filter.

FIG. 6 is a view similar to FIG.

FIG. 7 is a view similar to FIG. 5;

FIG. 8 is a diagram illustrating a filter according to another embodiment.

FIG. 9 is a view showing a conventional vehicle air conditioner.

[Explanation of symbols]

 Reference Signs List 1 cowl box 10 intake box 10a intake flange 11 outside air inlet 12 inside air inlet 13 intake door 20 blower case 20a upper opening 20b lower opening 21 blower fan 21a motor unit 21b fan 30,80 air purification filter 31,81 filter case 32 , 84 Filtering material 33 Sealing material 34, 84a, 84b Tape 100 Blower unit

──────────────────────────────────────────────────の Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B60H 3/06 B60H 1/00 102 B60H 1/28

Claims (3)

(57) [Claims] 1. An intake flange, which is erected in a cowl box and has an opening forming an outside air inlet, an inside air inlet is formed, and the inside air inlet and the outside air inlet are opened and closed to open and close the outside air. A blower unit having an intake door for switching between introduction and inside air circulation, the intake box connected to the intake flange, and a blower case containing a blower fan and connected to the intake box; An air purification filter is placed so as to cover the inlet
Then, in the vehicle air conditioner for supplying the air introduced from each of the introduction ports into the vehicle interior by the blower fan, the air purification filter includes a holding unit that holds a filtering material,
And formed so as to protrude laterally at the upper part of the holding part
Filter case with integrated support
Then, the holding portion of the filter case is configured such that
Make sure that the fitting is within the vertical height of the take flange.
It is fitted into the opening of the take flange, and
The support part of the filter case is
An air conditioner for a vehicle, wherein the air conditioner is configured to be supported by an upper edge of an opening . 2. An end of a tape hanging downward is fixed to the filter, and the tape is inserted through the blower case and the intake box from the vehicle interior in order, and once out of the cowl box through the outside air inlet. The adhesive tape for fixing the filter supported by the intake flange is provided on the tape as well as a gripping portion that is pulled when the filtered filter is supported by the intake flange. 2. The vehicle air conditioner according to 1. 3. The air conditioner for a vehicle according to claim 2, wherein the tape is formed by extending a part of a sheet-like filtering material.