JPH0234973Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a filter mounting structure for an air conditioner, which has a simple structure and allows the filter to be easily mounted.

(Prior Art) For example, among the internal and external air intakes provided in the air duct of a vehicle air conditioner, a filter is generally attached to the internal air intake to remove dust and dirt from the intake air. Due to use over time, the filter becomes dirty and its function deteriorates, so it is necessary to replace the filter with a new one from time to time.For convenience of replacement, a mounting structure that allows the filter to be easily attached and detached is desired.

Conventionally, in response to such requests,
For example, there is a technique disclosed in Japanese Utility Model Application Publication No. 59-23410. In other words, this publication describes a filter mounting structure in which an insulator for preventing air leakage is placed facing each other between an evaporator and a blower in a cooler case, and a dustproof filter is inserted from above between the insulators. has been done.

(Problem that the invention aims to solve) However, in this conventional structure, the filter is installed and removed from above the cooler case, which requires space for installation and removal at the top of the cooler case, and the design of the air conditioner is difficult. This poses a problem in that it limits the degree of freedom and cannot be used in air conditioners for which the above-mentioned space cannot be secured.

The present invention solves these conventional problems and allows the filter to be easily attached and detached with a simple configuration, and can be immediately applied to air conditioners whose structure does not allow for a specified attachment/detachment space in the vertical direction of the intake duct. It is an object of the present invention to provide a filter mounting structure for an air conditioner.

(Means for Solving the Problems) Therefore, the filter mounting structure of the air conditioner of the present invention has a rectangular air intake port, and is engaged so as to face the corner of one side of the intake port. a piece protruding obliquely from the opening surface of the intake port, and a locking protrusion is provided on the periphery of the opening of the intake port opposite to the periphery of one side of the engagement, and a locking protrusion is provided around the other end of the intake port. It has an intake duct with a pin projecting thereon, and a rectangular filter frame that can be attached to the opening of the intake port, and one end of the frame can be engaged with the engagement piece. A filter is provided at the other end thereof with a through hole that can be engaged with the pin, and that has an engaging tongue protruding from the frame that can be engaged with the locking protrusion, and the filter is inserted into the intake port. The filter frame can be attached and detached laterally from the other end, and when the filter is attached, the periphery of the filter frame is supported at three points by the engaging piece, the locking protrusion, and the pin, thereby providing stability when the filter is attached. The present invention is characterized in that it improves performance and can be applied to air conditioners where it is not possible to secure space for installing and removing the intake duct in the vertical direction.

(Embodiment) Hereinafter, an illustrated embodiment in which the present invention is applied to the inside air intake of a vehicle air conditioner will be described. In Figs. On the outside, a horizontally long internal air intake duct 3 as an intake duct is molded to protrude forward, and the end surface of this intake duct 3 has a downwardly sloped surface as shown in the figure, and an intake port is formed on the end surface. A horizontally long rectangular internal air intake port 4 is opened.

A horizontally long engagement piece 5 is integrally molded to protrude from a corner of the inside air intake duct 3 adjacent to the inside air intake port 4, and this engagement piece 5 extends along the end direction of the intake duct 3. A mounting piece 6 integral with the duct 3 is molded to protrude from the inside air intake duct 3 which is installed in an inclined manner asymptotically approaching the inside air intake 4 side and is opposed to the engaging piece 5. In the case of the embodiment, the locking protrusion serving as the reinforcing piece 7 is arranged so as to face approximately the center of the opening edge of the inside air intake port 4.

Further, on the side end surface of the inside air intake duct 3 on the opposite side from the engagement piece 5, as shown in FIG. It is possible to fit into the through hole. In the figure, 9
A bridging piece 9 is arranged in a grid pattern at the opening of the inside air intake port 4, and a filter 10 is mounted on this bridging piece 9.

The filter 10 is formed into a horizontally long rectangle, and has a filter frame 12 on which a filter net 11 is stretched.
Filter frame 1 on the long side among a and 12b
At an intermediate position of 2a, a substantially semicircular engaging tongue piece 13 is provided to protrude outward. Also, among the filter frames 12b on the short side, one frame 12b is formed wider than the other frame, and on the inner edge of the frame 12b, a hanging piece 14 faces downward as shown in FIG. A fixing piece 1 is provided on the outer edge of the filter frame 12b at the same position as the hooking piece 14.
5 protrudes downward, and this fixing piece 15 has a through hole 16 formed therein. In the figure, reference numeral 17 denotes a reinforcing frame provided in a grid pattern on the filter 10.

(Function) The filter mounting structure configured as described above includes an engagement piece 5 and a reinforcing piece 7 as a locking protrusion provided on the end face of the inside air intake duct 3, and a pin 8 protruding from the side end face. , the existing structure can be used almost as is without requiring major modification by simply providing the engaging tongue piece 13 and the fixing piece 15 in which the through hole 16 is formed on the filter frame 12a, 12b of the filter 10. This means that species can be easily modified.

Next, when installing the filter 10 using such an installation structure, hold the filter 10 and insert it from the side of the inside air intake duct 3 as shown in FIG. What is necessary is just to move it along the longitudinal direction of the inside air intake port 4 while sliding it. When the majority of the filter 10 is accommodated on the inside air intake duct 3, the corner of the narrow filter frame 12b starts to come into contact with the base end of the engagement piece 5 on the moving tip side, and the filter 10 moves toward the scroll portion 2 while being guided by the engaging piece 5, and the engaging tongue piece 13 protruding from the filter frame 12a engages with the reinforcing piece 7.

Therefore, the filter frame 12b and the engaging piece 5, and the engaging tongue piece 13 and the reinforcing piece 7 interact with each other to deepen the engagement and increase the surface pressure on each contact surface. Then, the filter frame 1 on the moving tip side
When the corner of 2b reaches the tip of the engagement piece 5, when the rear end of the moving side of the filter 10, that is, the wide filter frame 12b, is pressed in the direction of the inside air intake duct 3, the inner and outer edges of the frame 12b are pressed. A hanging piece 14 and a fixing piece 15 that project downward are dropped into both sides of the frame located at the opening edge of the inside air intake duct 3, as shown in FIG. 7, and the frame is narrowed between them. A pin 8 protruding from the side end surface of the inside air intake duct 3 fits into a through hole 16 formed in the fixed piece 15 .

Therefore, the filter 10 is supported and fixed at three locations: the engaging piece 5, the reinforcing piece 7, and the contact portions or engaging portions of the pin 8. Therefore, the stability of the filter 10 is promoted by the so-called three-point support, and the above-mentioned strong surface pressure acts on each contact portion to maintain a close contact relationship with each other. Even if it is subjected to vibrations or shocks caused by driving a vehicle after it is installed, it will not shift or rattle.

On the other hand, when removing the filter 10 attached in this way, use an appropriate tool to displace the fixing piece 15 outward, release the fitting between the through hole 16 and the pin 8, and pull it up slightly to lock it. Piece 1
4 and the opening edge of the inside air intake duct 3, hold the wide filter frame 12b and pull it out to the right in FIG. 2, for example.

In this way, in this filter mounting structure, the filter 10 can be attached and detached from the side of the inside air intake duct 3, so that it is suitable for an air conditioner in which space cannot be secured in the vertical direction of the duct 3.

(Effect of the invention) As described above, the filter mounting structure of the air conditioner of the present invention has a rectangular air intake, and the engaging piece is placed facing the corner of one side of the intake. A locking protrusion is provided on the periphery of the opening of the intake port opposite to the periphery of one side of the engagement, and a pin is protruded around the other end of the intake port. and a rectangular filter frame that can be attached to the opening of the intake air intake port, one end of the frame is engageable with the engagement piece, and the other end of the frame is engageable with the engagement piece. A filter is provided in which a through hole that can be engaged with the pin is formed, and an engaging tongue piece that can be engaged with the locking protrusion is protruded from the frame, and the filter is inserted into the other end of the intake port. Since it can be attached and detached from side to side, there is no need for attachment and detachment space in the vertical direction of the intake duct, and there is an effect that it can be applied to air conditioners where the above-mentioned space cannot be secured.

Furthermore, in the present invention, when the filter is mounted, the periphery of the filter frame is supported at three points by the engaging piece, the locking protrusion, and the pin, so the filter can be mounted firmly and stably, and the filter frame can be mounted firmly and stably. This has the practical effect of strongly preventing filter misalignment and rattling caused by running vibrations, etc.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention;
Fig. 2 is a front view showing how the filter is installed, with a part shown in cross section, Fig. 3 is a right side view of Fig. 2, and Fig. 4 shows an example of the intake duct applied to the present invention. It is a front view with a part shown in cross section, and the fifth
The figure is an enlarged sectional view taken along line A-A' in Figure 4, and Figure 6.
The figure is a front view showing an example of a filter applied to the present invention, and FIG. 7 is an enlarged sectional view taken along line BB' in FIG. 6. 3...Intake duct, 4...Inside air intake, 5...
Engagement piece, 7... Locking protrusion, 8... Pin, 10...
Filter, 13... Engaging tongue piece, 15... Fixed piece,
16...Through hole.

Claims (1)

[Scope of utility model registration request] It has a rectangular air intake port, and an engaging piece is provided obliquely protruding from the opening surface of the intake port so as to face the corner of one side of the intake port, and the engaging piece is provided with an engaging piece projecting obliquely from the opening surface of the intake port. An intake duct having a locking protrusion on the periphery of the opposing opening of the intake port and a pin projecting around the other end of the intake port, and a rectangular filter that can be attached to the opening of the intake port. a frame, one end of the frame is engageable with the engagement piece, the other end is formed with a through hole that is engageable with the pin, and the frame is engaged with the engagement piece. The filter is provided with a protruding engaging tongue piece that can be engaged with the protrusion, and the filter can be attached and detached laterally from the other end of the intake port, and when the filter is attached, the filter frame can be attached to the periphery of the filter frame. A filter mounting structure for an air conditioner, characterized in that the filter is supported at three points by the engaging piece, the locking protrusion, and the pin.