JPH0713529U - Automotive air conditioning filter mounting structure - Google Patents

Abstract

(57) [Abstract] [Purpose] It is possible to easily attach and detach the filter member to and from the duct of the air conditioner, and prevent the installation space of the glove box or the like from being narrowed. In an automotive air conditioning filter mounting structure disposed upstream of an evaporator 3 provided in a duct 1, a plurality of divided filter members 7 to 9 are installed in parallel in the width direction of the duct 1. At the same time, cooling pipes 14 communicating with the evaporator 3 are arranged on both sides of the bottom wall of the duct 1, and the filter member is taken out to the bottom wall of the duct 1 located between the installation parts of the cooling pipes 14. The opening member 15 for forming is formed and the closing member including the sealing member 22 that covers the opening member 15 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle air-conditioning filter mounting structure that constitutes an air-conditioning system installed in a vehicle.

[0002]

[Prior art]

 Conventionally, as disclosed in, for example, Japanese Utility Model Laid-Open No. 4-76512, a filter member is installed so as to cover substantially the entire surface of an evaporator disposed in a duct of an air conditioner for automobiles, so that air is blown into the vehicle interior. The air that purifies the air is being purified. The filter member is divided into a plurality of parts along the upper and lower directions of the casing (duct) in order to facilitate its attachment and detachment, and is inserted into the casing through a vertically extending through hole formed in the side wall of the casing. It is configured to be mounted.

[0003]

[Problems to be solved by the device]

 When the filter member is divided into a plurality of parts in the vertical direction as described above, an insertion hole from the upper end to the lower end of the side wall of the casing is formed, and the lower filter member is sequentially inserted through this insertion hole. It is necessary to install it in the casing and take it out from the casing in order from the upper filter member. When the insertion hole extending in the entire vertical direction of the side wall of the air conditioner is formed as described above, there is a problem that the air for air conditioning easily leaks out from this portion.

In the above conventional device, a guide wall is formed to cover the outer portion of the insertion hole formed in the lower portion of the casing, and a flange portion projecting from the filter member is provided between the guide wall and the casing. It is configured such that the above-mentioned opening is sealed by the packing material attached to the inner surface of this flange portion.However, in this case, there is a problem that the structure becomes complicated. is there.

Further, in order to facilitate the attachment / detachment work of the filter member to / from the casing, a knob serving as a grip portion is provided on the flange portion so that the knob and the guide wall are There is a problem in that the installation space of the glove box or the like installed facing the rear surface of the air conditioner is narrowed by projecting to the rear side of

The present invention has been made in order to solve the above-mentioned problems, and the attachment / detachment operation of the filter member to / from the duct of the air conditioner can be easily performed, and the installation space for the globe box and the like can be narrowed. The object is to provide an air conditioning filter mounting structure for automobiles that can prevent

[0007]

[Means for Solving the Problems]

 According to a first aspect of the present invention, in a vehicle air-conditioning filter mounting structure arranged upstream of an evaporator provided in a duct, a plurality of divided filter members are installed in parallel in a width direction of the duct. Cooling pipes communicating with the evaporator are arranged on both sides of the duct, and an opening for taking out the filter member is formed on the wall of the duct located between the installation parts of both cooling pipes. A closing member is provided to cover this opening.

According to a second aspect of the invention, an evaporator and an air-conditioning filter are arranged in front of an instrument panel located on the passenger side of a vehicle compartment, and the instrument panel and the dash panel located in front of the instrument panel are arranged. An opening corresponding to the opening for taking out the filter member formed in the bottom wall of the duct is provided therebetween.

[0009]

[Action]

 According to the invention described in claim 1, each filter member is provided in the duct one by one through the opening of the duct formed between the installation portions of the pair of cooling pipes installed on both sides of the duct. After installation, a blocking member is attached to the opening to cover the opening, so that the air in the duct is prevented from leaking to the outside.

According to the second aspect of the present invention, the opening provided between the instrument panel located on the passenger side of the passenger compartment and the dash panel located in front of the instrument panel and the position above the opening. Each of the filter members is attached and detached through the opening of the duct.

[0011]

【Example】

 1 to 3 show an automobile air conditioner having an air conditioning filter mounting structure according to an embodiment of the present invention. This air conditioner regulates the blower 2 that sucks the outside air or the air in the passenger compartment into the duct 1, the evaporator 3 of the cooler unit that cools the sucked air, and the flow path of the air that has passed through the evaporator 3. It has an air mix damper 4 and a heater core 5 of a heater unit that heats the air supplied through the air mix damper 4.

An air conditioning filter 6 for purifying air is installed on the upstream side of the installation portion of the evaporator 3. The air conditioning filter 6 is composed of three filter members 7 to 9 which are divided in the width direction of the duct 1, that is, in the front-back direction of the vehicle body as shown in FIG. 3, and the filter members 7 to 9 are the front faces of the evaporator 3. Are installed in parallel in the width direction of the duct 1 so as to cover almost the entire area. Each of the filter members 7 to 9 is composed of a filter sheet 10 made of pleated paper or non-woven fabric, and a frame 11 made of a plastic material for holding the filter sheet 10 (see FIG. 4 and FIG. 4). (See FIG. 5).

Further, the evaporator 3 and the air conditioning filter 6 are arranged in front of the installation portion of the instrument panel 12 and the glove box 13 located on the passenger side of the passenger compartment. The cooling pipes 14 communicating with the evaporator 3 are provided on both sides of each of the filter members 7 to 9 constituting the air conditioning filter 6, that is, below the filter member 7 on the front side of the vehicle body and the filter material 9 on the rear side of the vehicle body. Are installed respectively. Further, an opening 15 for taking out the filter members 7 to 9 is formed in a central portion of the bottom wall portion of the duct 1 except both side portions where both cooling pipes 14 are installed.

The opening 15 is formed in such a size that one of the filter members 7 to 9 can be taken out, that is, a size having a larger area than the bottom surface of the frame 11. Further, on the side of the opening 15, there is formed a recessed hole that serves as a mounting portion for the insert nut 16 to which a mounting bolt 36 of a mounting member 23, which will be described later, is screwed.

The cooling pipe 14 stands up to cover the rear part of the air-conditioning filter 6, and its front end is led out to the front side of the vehicle body to a radiator (not shown) arranged in the engine room. It is connected. Further, the cooling pipe 14 is provided with an expansion valve 17 and a heat-sensitive cylinder 18. In order to avoid interference between the lead-out portion of the cooling pipe 14 and the filter member 7 on the front side of the vehicle body, a cutout portion 19 is formed in the upper portion of the filter member 7.

A ridge 20 is formed on the upper end surface of the frame body 11 constituting each of the filter members 7 to 9, and the ridge 20 is fitted into a recess 21 formed on the inner surface of the upper wall of the duct 1. By doing so, the upper end of the frame 11 is positioned and locked to the duct 1. As shown in FIGS. 4 to 6, a seal member 22 made of a synthetic rubber material or the like and a mounting member 23 made of a plastic material or the like are arranged below the frame body 11.

The seal member 22 has an upper wall portion 24 that is pressed against the lower surface of the frame body 11, and a side wall portion 25 that projects downward from the outer peripheral portion of the upper wall plate 24. On the outer surface of the side wall plate 25, there is formed a bulging portion 26 which is brought into pressure contact with the peripheral wall surface of the opening 15 for taking out the filter member formed on the bottom wall portion of the duct 1. Further, recesses 27 to 31 which are recessed downward are formed in the upper wall portion 24 of the seal member 22, and the frame members 11 of the filter members 7 to 9 are provided in predetermined recesses 27, 28 and 31. The positioning pin 32 protruding from the lower surface is inserted. Further, on the bottom wall portions of the recesses 28 and 30, a protrusion 33 serving as a positioning portion for the mounting member 23 is provided so as to protrude downward.

The mounting member 23 includes a peripheral wall portion 34 that is inserted between the inner surface of the side wall portion 25 that forms the seal member 22 and the outer surfaces of the wall portions that form the recesses 27 to 30, and the lower end of the peripheral wall portion 34. And a bottom wall portion 35 provided on the bottom portion of the bottom wall portion 35. The bottom wall portion 35 has a through hole 37 for a mounting bolt 36 formed at a side end portion thereof, and the seal member 21 is formed at an inner portion thereof. A positioning hole 38 into which the protrusion 33 is fitted is formed. Further, at the center of the bottom wall portion 32, a handle portion 40 that bulges downward is formed.

In the above configuration, in order to install each of the filter members 7 to 9 in the installation portion of the air conditioning filter 6 provided in the duct 1, from the opening portion 15 formed in the bottom wall portion of the duct 1 to the front side. The filter member 7 on the side or the filter member 9 on the rear side is sequentially mounted in the duct 1 from either one of them. Then, the protrusions 20 provided on the upper end surfaces of both the filter members 7 and 9 are inserted into the recesses 21 of the duct 1 to position them, and then the central filter member 8 is inserted between them for positioning. Wear in the state.

Next, the seal member 22 is fitted into the opening 15 of the duct 1, and the bulging portion 26 provided on the outer surface of the side wall 25 thereof is pressed against the peripheral wall surface of the opening 15. The positioning pins 32 of the filter members 7 to 9 are inserted into the recesses 27, 28 and 31 to set the filter members 7 to 9 in a positioned state.

Further, the mounting member 23 is installed below the seal member 22, and the peripheral wall portion 34 is inserted between the side wall 25 of the seal member 22 and the outer surface of the side wall of each of the recesses 27 to 31. By fixing the sealing member 22 and the mounting member 23 to the duct 1 with the mounting bolts 36 in a state where the protrusion 33 of the sealing member 22 is fitted into the positioning hole 38 and the both are positioned, the opening 15 is formed. Is closed by the seal member 22.

In this way, the three filter members 7 to 9 divided in the width direction of the duct 1 are sequentially mounted through the opening 15 provided in the bottom wall portion of the duct 1, and the respective filter members 7 to 9 are attached. Since the evaporator 3 is configured to cover substantially the entire front surface of the evaporator 3, the filter member 7 to 9 is prevented from being affected by moisture generated when the evaporator 3 cools the air. With the above items, the dust and the like in the air can be effectively removed, and the air blown into the vehicle interior can be efficiently purified.

It is not necessary to form an opening having a size over the entire length in the width direction of the bottom wall of the duct 1, and each of the filter members 7 to 9 can be formed by notching a part of the bottom wall. It can be put in and taken out. Therefore, the opening 15 can be easily sealed by the closing member including the small sealing member 22. Moreover, since the opening 15 can be formed between the installation portions of the pair of cooling pipes 14 installed along the left and right sides of the bottom of the duct 1 as described above, the sealing member can be formed. It is possible to make the installation space of the mounting member 22 and the mounting member 23 compact.

Further, as shown in FIG. 3, a duct positioned between the instrument panel 12 and the glove box 13 on the passenger side of the evaporator 3 and the air conditioning filter 6 and a dash panel 41 in front of the instrument panel 12 and the glove box 13. According to the configuration in which the opening portion 15 is provided on the bottom wall portion of No. 1, the opening portion 15 is used without causing a problem that the opening portion 15 is exposed at a conspicuous position in the vehicle interior and the appearance is deteriorated. The filter members 7 to 9 can be easily attached and detached. Moreover, unlike the conventional structure, since the knob for attachment / detachment and the guide wall do not project to the rear side of the vehicle body, it is possible to prevent the installation space of the glove box 13 from being narrowed.

When the instrument panel 12 is installed below the installation part of the glove box 13, the instrument panel 12 has an opening formed by a notch or a gap corresponding to the opening 15. It is desirable that the portion 42 is provided and the filter members 7 to 9 are attached and detached through the opening 42. With this configuration, the filter members 7 to 9 can be attached and detached without removing the instrument panel 12 arranged below the installation portion of the glove box 13. A lid member that closes the opening 42 may be detachably installed if necessary.

In the above embodiment, the case where the pair of cooling pipes 14 are installed along the bottom wall of the duct 1 has been described, but the pair of cooling pipes 14 is installed along the upper wall of the duct 1. At the same time, an opening 15 for taking out the filter member may be formed between the installation portions of the cooling pipe 14.

[0027]

[Effect of device]

 As described above, according to the present invention, a plurality of filter members divided in the width direction of the duct are installed in parallel, and each of the above-mentioned filters is placed in the duct through the opening provided in the bottom wall of the duct. Since the members are installed in sequence, it is not necessary to form an opening in the bottom wall of the duct over the entire length in the width direction, and it is possible to cut each filter member by notching a part of the bottom wall. It can be taken in and out. Therefore, the opening can be easily sealed by a small blocking member, and the pair of cooling pipes installed on both left and right sides of the duct along the bottom wall of the duct. By using the installation portion and forming the opening between them, there is an advantage that the loading / unloading operation portion of the filter member formed of the opening can be made compact.

Further, an opening for taking out the filter member is provided in a bottom wall portion of a duct located between an instrument panel located on the passenger side of the evaporator and the air conditioning filter and a dash panel in front of the instrument panel. According to the configuration, it is possible to easily attach and detach the filter member by using the opening without causing a problem that the opening is exposed at a conspicuous position in the vehicle interior and the appearance is deteriorated. Moreover, unlike the conventional structure, since the knob for attachment / detachment operation and the guide wall do not project to the rear side of the vehicle body, there is an advantage that the installation space of the glove box can be prevented from being narrowed. .

[Brief description of drawings]

FIG. 1 is a schematic explanatory diagram showing an overall configuration of an air conditioner.

FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1 showing an embodiment of a vehicle air conditioning filter mounting structure according to the present invention.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is a cross-sectional view showing a state in which a seal member and a mounting member are removed from an opening.

5 is a view taken along the line CC of FIG.

6 is a cross-sectional view taken along the line DD of FIG.

[Explanation of symbols]

 1 Duct 3 Evaporator 6 Air Conditioning Filter 7-9 Filter Member 12 Instrument Panel 14 Cooling Pipe 15 Opening 22 Sealing Member (Blocking Member) 41 Dash Panel 42 Opening

Claims (2)

[Scope of utility model registration request] 1. In an automobile air conditioning filter mounting structure arranged upstream of an evaporator provided in a duct, a plurality of divided filter members are installed in parallel in a width direction of the duct, and Cooling pipes that communicate with the evaporator are arranged on both sides,
An air conditioning filter mounting structure for an automobile, characterized in that an opening for taking out a filter member is formed on a wall portion of a duct located between the installation portions of both cooling pipes, and a closing member for covering the opening is provided. 2. An evaporator and an air-conditioning filter are arranged in front of an instrument panel located on the passenger side of a passenger compartment, and a bottom wall of a duct is provided between the instrument panel and a dash panel located in front of the instrument panel. The vehicle air-conditioning filter mounting structure according to claim 1, wherein an opening corresponding to the opening for taking out the filter member formed in the portion is provided.