JP2010260508A - Air conditioner for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve working efficiency when replacing a filter and preventing generation of abnormal noise by reducing the vibration of the filter at low cost. <P>SOLUTION: A filter 30 for filtering air is arranged in an air flow passage of a casing of the air conditioner 1. An attaching/detaching hole 21e for attaching/detaching the filter 30 is formed on the wall part 21b of the casing, and a lid member 45 for opening/closing the attaching/detaching hole 21e is mounted on the wall part 21b of the casing. The filter 30 includes a filter body 31 having a filter medium A and a spring 32 for biasing the filter body 31 in such a direction as to bring the filter body 31 toward the outside of the casing from the attaching/detaching hole 21e. The filter 30 is held in the casing in contact with the lid member 45. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicle air conditioner provided with a filter for filtering air, and particularly relates to a technical field of a structure that allows a filter to be replaced.

  2. Description of the Related Art Conventionally, a vehicle air conditioner has a casing that houses a blower fan and a heat exchanger, and a filter for filtering air for air conditioning is accommodated in the casing (for example, Patent Document 1). 2). The casing is formed with a desorption hole that is used when the filter is replaced, and the desorption hole is used to take out the old filter from the casing and insert the new filter into the casing.

JP 2000-247142 A JP 2004-189059 A

  By the way, in recent years, various devices such as a passenger-side airbag device and a navigation device have been mounted on vehicles. Such a device may be present around the air conditioner. In this case, when replacing the filter, the operator cannot visually recognize the attachment / detachment hole. Further, if there are various devices around the air conditioner, it is difficult to secure a sufficient space for replacing the filter. That is, the operator who replaces the filter has to take out the filter that cannot be seen from a place where there is not enough space, and the workability is poor.

  In addition, when operating the air conditioner, the filter may vibrate and cause abnormal noise. Therefore, the filter must be provided with a cushioning material for preventing abnormal noise, which increases the number of parts and costs. Was the cause of high.

  The present invention has been made in view of the above points, and the object of the present invention is to improve the workability at the time of replacing the filter and to suppress the vibration of the filter at a low cost to generate abnormal noise. Is to prevent.

  1st invention accommodates the apparatus for air conditioning, and has a casing which has an air flow path into which air for air conditioning is introduced, and is stored in the air flow path in the casing, and filters the air flowing through the air flow path In the vehicle air conditioner including the filter, a desorption hole for detaching the filter is formed in the wall portion of the casing, and a lid member for opening and closing the desorption hole is attached. A filter main body having a filter medium; and an urging portion for urging the filter main body in a direction of exiting the casing from the attachment / detachment hole, wherein the filter is in contact with the lid member in the casing. It is characterized by being held in a state.

  Therefore, the filter in use is held in contact with the lid member while being accommodated in the casing. At this time, the filter is urged in the direction of coming out of the casing from the attachment / detachment hole by the urging force of the urging portion, so that it comes into pressure contact with the back side of the lid member. This eliminates shakiness of the filter that causes abnormal noise during operation of the air conditioner.

  When the filter is replaced, when the lid member is removed from the casing and the desorption hole is opened, the filter comes out of the casing through the desorption hole by the urging force of the urging portion. Therefore, even when the desorption hole is not visible or when the space for replacing the filter is not sufficient, the filter can be easily taken out from the desorption hole, and the replacement workability is improved. .

  In a second aspect based on the first aspect, the urging portion of the filter is configured by a spring portion that protrudes away from the filter main body and presses against the inner surface of the casing. The filter includes the spring portion described above. A switching unit is provided to switch between a state in which the casing is pressed against the inner surface of the casing and a state in which the casing is separated from the inner surface of the casing.

  According to this configuration, before inserting the filter into the casing, the spring portion is kept away from the inner surface of the casing, so that the biasing force by the spring portion does not act at the time of insertion, and the workability at the time of insertion is good. Become. And the urging | biasing force mentioned above is obtained by switching to the state which presses a spring part to the inner surface of a casing by a switching part in the state which inserted the filter in the casing.

  A third invention is characterized in that, in the second invention, a casing-side operation section for operating the switching section is provided in a portion of the casing facing the switching section of the filter. is there.

  According to this configuration, when the filter is inserted into the casing, the filter switching unit is operated by the casing side operation unit. Thereby, the urging | biasing part is switched to the state which press-contacts to the inner surface of a casing.

  In a fourth aspect based on the second aspect, the spring portion has a long shape, and is switched between a state in which the spring portion is curved in a direction in pressure contact with the inner surface of the casing and a state in which the spring portion is curved in a direction away from the inner surface of the casing. In the filter main body, the spring portion that is curved in a direction away from the inner surface of the casing is pressed so as to bend in a direction in which the spring portion is pressed against the inner surface of the casing. A switching pressing portion for switching between the two is provided.

  According to this configuration, by curving the spring portion of the filter in a direction away from the inner surface of the casing, the biasing force by the spring portion does not act when the filter is inserted, and the workability at the time of insertion is improved. Then, by pressing the spring portion with the switching pressing portion in a state where the filter is inserted into the casing, the spring portion is bent in a direction in pressure contact with the inner surface of the casing, and the urging force described above is obtained.

  According to a fifth invention, in the fourth invention, a lid member side operation portion for operating the switching pressing portion is provided at a portion of the lid member facing the filter.

  According to this configuration, by attaching the lid member to the casing, the filter switching pressing portion is operated by the lid member side operation portion. As a result, the spring portion is bent in a direction in pressure contact with the inner surface of the casing.

  According to a sixth invention, in any one of the first to fifth inventions, the filter main body has a frame portion made of a resin material having elasticity formed so as to surround a peripheral edge portion of the filter material, and an urging portion Is integrally formed with the frame portion.

  According to this configuration, an urging force can be obtained using the elasticity of the resin material that constitutes the frame portion of the filter body.

  According to the first aspect of the present invention, the urging portion is provided in the filter so that the filter body is urged in the direction of exiting from the attachment / detachment hole of the casing, so that the filter workability can be improved. Furthermore, since the filter is held in contact with the lid member in the casing, the vibration of the filter can be suppressed by using the urging portion, and hence the generation of abnormal noise can be prevented at low cost.

  According to the second invention, since the spring portion can be switched between a state in which it is pressed against the inner surface of the casing and a state in which the spring portion is separated from the inner surface of the casing, the filter insertion workability can be improved.

  According to the third aspect of the present invention, it is possible to switch the urging portion of the filter to a state where it is pressed against the inner surface of the casing simply by performing the operation of inserting the filter into the casing, and the workability at the time of replacement can be further improved. .

  According to the fourth aspect of the invention, the switching portion provided on the filter body can be switched between a state in which the spring portion is curved in a direction in which it is pressed against the inner surface of the casing and a state in which the spring portion is curved in a direction away from the inner surface of the casing. Therefore, since the bending direction of the spring portion is switched, workability at the time of replacement can be further improved.

  According to the fifth aspect, since the lid member side operation portion for operating the switching pressing portion is provided in the portion of the lid member facing the filter, the bending direction of the spring portion can be changed simply by attaching the lid member. The workability at the time of replacement can be further improved.

  According to the sixth aspect, since the urging portion is integrally formed with the frame portion made of the resin material of the filter body, the number of parts can be reduced and the urging force of the urging portion can be easily obtained.

It is the figure which looked at the air-conditioner for vehicles concerning Embodiment 1 from the back side. It is the II-II sectional view taken on the line in FIG. It is the III-III sectional view taken on the line in FIG. It is a top view of the filter in the state before attachment. FIG. 4 is a view corresponding to FIG. 3 illustrating a state in the middle of housing the filter in the filter housing portion. FIG. 4 is a view corresponding to FIG. 3 showing a state in which the lid member is removed from the casing. It is a figure which expands and shows the urging | biasing part of the filter in the middle of being accommodated in a filter accommodating part, and its vicinity. FIG. 8 is a view corresponding to FIG. 7 in a state where the filter is completely accommodated in the filter accommodation portion. FIG. 6 is a view corresponding to FIG. 4 according to the second embodiment. FIG. 6 is a view corresponding to FIG. 3 and illustrating a state immediately after a new filter is accommodated in the filter accommodating portion according to the second embodiment. FIG. 3 is a diagram corresponding to FIG. 3 according to a second embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature, and is not intended to limit the present invention, its application, or its use.

Embodiment 1
FIG. 1 shows a view of a vehicle air conditioner 1 according to Embodiment 1 of the present invention as viewed from the vehicle rear side. The vehicle in which the air conditioner 1 is disposed is a so-called right-hand drive vehicle in which a driver seat and a passenger seat are provided on the right side and the left side of the vehicle, respectively. In the description of this embodiment, for convenience of explanation, the left side in the vehicle width direction is simply referred to as “left”, and the right side in the vehicle width direction is simply referred to as “right”.

  The air conditioner 1 includes a blower unit 3 that blows air for air conditioning, an air conditioner unit 4 that introduces air blown from the blower unit 3 into conditioned air, and a blower unit 3 that blows air to the air conditioner unit 4. And an intermediate duct 5 for sending air for air conditioning.

  The air conditioning unit 4 is disposed at a substantially central portion in the left-right direction in the instrument panel (not shown), while the air blowing unit 3 is spaced to the left side of the air conditioning unit 4 and in front of the passenger seat. Has been placed.

  The blower unit 3 includes a casing 6. The upper portion of the casing 6 is an air intake 7 for taking in air for air conditioning into the blower unit 3, while the lower portion is a blower for blowing the taken-in air into the air conditioning unit 4. It is set to 8. Further, a portion of the casing 6 between the air intake portion 7 and the blower portion 8 is a filter housing portion 21 for housing the filter 30.

  As shown in FIG. 2, an air flow path S extending from the air intake portion 7 to the blower portion 8 is provided in the casing 6, and the air-conditioning air introduced from the air intake portion 7 passes through the air flow path S. It comes to circulate.

  An air intake 10 for taking in air outside the vehicle compartment is formed on the front side of the vehicle above the air intake portion 7, and an air intake 11 for taking in air inside the vehicle compartment is formed on the rear side of the vehicle. Yes. Both intakes 10 and 11 are connected to the upstream end of the air flow path S and are selectively opened and closed by an inside / outside air switching damper 9. The inside / outside air switching damper 9 is disposed in the air flow path S, and includes a rotating shaft 12 extending in the vehicle width direction and a plate-like closing portion 13. The rotation shaft 12 is rotatably supported on the left and right side walls of the casing 6. The right end portion of the rotation shaft 12 passes through the right side wall portion of the casing 6.

  As shown in FIG. 1, an inside / outside air switching motor actuator 15 and an inside / outside air switching link mechanism 16 for rotating the inside / outside air switching damper 9 are disposed on the right side wall portion of the casing 6.

  The inside / outside air switching motor actuator 15 is fastened and fixed to a boss (not shown) protruding from the right side wall portion of the casing 6. The inside / outside air switching link mechanism 16 includes a driving link 17 to which the output shaft of the inside / outside air switching motor actuator 15 is connected, and a driving arm 18 to which the rotation shaft 12 of the inside / outside air switching damper 9 is connected. These are engaged with each other. The drive link 17 and the drive arm 18 are formed by molding a resin material such as polypropylene.

  When the operating force by the inside / outside air switching motor actuator 15 is transmitted to the inside / outside air switching damper 9 via the drive link 17 and the driving arm 18, the inside / outside air switching damper 9 rotates around the rotation shaft 12, and One of the outside air inlet 10 and the inside air inlet 11 is closed by the inside / outside air switching damper 9 and the other is opened. In other words, when the outside air intake 10 is fully opened by the inside / outside air switching damper 9, the inside air intake 11 is fully closed, and the outside air intake mode for taking in only the air outside the passenger compartment is set. On the other hand, when the outside air inlet 10 is fully closed, the inside air inlet 11 is fully opened, and the inside air circulation mode for taking in only the air in the passenger compartment is set. The inside air inlet 11 is provided with a grid-like grill 14.

  Moreover, as shown in FIG. 3, the horizontal cross section of the filter accommodating part 21 is made into the substantially rectangular shape. The inside of the filter housing portion 12 has a hollow shape that constitutes a part of the air flow path S, and is a housing space for the filter 30. The front wall portion 21a and the rear wall portion 21b of the filter housing portion 21 extend in the left-right direction substantially parallel to each other, and the left wall portion 21c and the right wall portion 21d of the filter housing portion 21 are substantially parallel to each other in the front-rear direction. It extends. A desorption hole 21e used when the filter 30 is replaced is formed in the rear wall portion 21b of the filter accommodating portion 21 so as to communicate with the inside of the filter accommodating portion 21. The desorption hole 21 e opens in a rectangular shape that is long in the left-right direction, corresponding to the shape of the filter 30.

  A lid member 45 that opens and closes the attachment / detachment hole 21e is attached to the filter housing portion 21. The lid member 45 is formed of a rectangular plate that is long in the left-right direction, similar to the attachment / detachment hole 21e. A claw (not shown) that engages with the peripheral edge of the attachment / detachment hole 21e is provided on the peripheral edge of the lid member 45.

  As shown in FIG. 2, the filter housing portion 21 is formed with a support portion 19 that supports the filter 30 from below and a pressing portion 22 that presses the filter 30 from above. The support portion 19 is configured by a plate that protrudes inward from the inner surface of the filter housing portion 21 and extends in an annular shape along the inner peripheral surface of the filter housing portion 21. The holding part 22 is also composed of a plate extending in the same manner as the support part 19. The support portion 19 comes into contact with the peripheral portion of the lower surface of the filter 30, and the holding portion 22 comes into contact with the peripheral portion of the upper surface of the filter 30.

  As shown in FIG. 4, the filter 30 includes a thick plate-shaped filter main body 31, a spring portion 32 for biasing the filter main body 31 in a direction of exiting the casing 6 from the attachment / detachment hole 21 e, and a spring portion 32. Is provided with a switching unit 33 for switching to two states described later.

  The filter main body 31 includes a filtering material A and a frame portion 34 formed so as to surround the peripheral edge of the filtering material A. The filter medium A is formed by bending filter paper into a fine corrugated shape, and has a rectangular shape when viewed in the air passage direction (up and down in a state of being accommodated in the filter accommodating portion 21).

  The frame part 34 is comprised with the resin material which has elasticity. Examples of the resin material constituting the frame portion 34 include polypropylene and the like, but are not limited thereto, and various elastic resin materials can be used.

  The frame portion 34 includes a front plate portion 34a that extends along the front end surface of the filter material A, and a left plate portion 34b and a right plate that extend from the left and right ends of the front plate portion 34a along the left end surface and the right end surface of the filter material A, respectively. The part 34c and the rear plate part 34d extending along the rear end surface of the filter medium A are integrally formed so as to connect the rear end parts of the left plate part 34b and the right plate part 34c. A left protruding portion 34e that protrudes forward from the front plate portion 34a is formed at the front portion of the left plate portion 34b of the frame portion 34. An engaging piece 34f that protrudes toward the right side is formed at the leading end in the protruding direction of the left protruding portion 34e. The spring portion 32 is engaged with the engagement piece 34f.

  A right protruding portion 34g that protrudes further forward than the front plate portion 34a is also formed at the front portion of the right plate portion 34c of the frame portion 34. The left protrusion 34e and the right protrusion 34g are formed in a plate shape. As shown in FIG. 3, the distal end portions of the left protruding portion 34e and the right protruding portion 34g abut against the inner surface of the front wall portion 21a when the filter 30 is completely inserted into the filter housing portion 21, and the insertion position of the filter 30 is reached. It is a stopper to set.

  The spring portion 32 is adapted to obtain a spring force by the elasticity of the resin material, is formed in a long plate shape extending in the left-right direction, and can be bent in the thickness direction. The direction of the spring portion 32 is set such that the thickness direction is the front-rear direction and the width direction is the upper-lower direction, and therefore the bending direction is the front-rear direction.

  The right end portion of the spring portion 32 is integrally formed with the frame portion 34 via the switching portion 33, as will be described in detail later. Further, the left end portion of the spring portion 32 comes into contact with the left protruding portion 34e while being separated from the frame portion 34, and can be displaced with respect to the left protruding portion 34e.

  The overall length of the spring portion 32 is set to be longer than the distance between the left protrusion 34e and the right protrusion 34g of the frame portion 34. Therefore, the spring portion 32 is bent in one of the front and rear directions between the left protrusion 34e and the right protrusion 34g. The spring portion 32 is bent in the backward direction due to the elasticity of the spring portion 32 to be in pressure contact with the front plate portion 34a of the frame portion 34 (shown in FIGS. 4 and 5). It is configured to selectively take one of two states: a post-attachment state (shown in FIGS. 3 and 6) that is separated from the plate portion 34a. The pre-attachment state is a state before being housed in the filter housing portion 21, and the post-attachment state is a state after being housed in the filter housing portion 21.

  As shown in FIG. 4, when the spring portion 32 is in the pre-attachment state, the right end portion of the spring portion 32 protrudes away from the front plate portion 34a of the frame portion 34, and the left end portion is also the front plate portion 34a. It protrudes away from the front and engages with the engagement piece 34f. Further, the portion between the right end portion and the left end portion of the spring portion 32 in the pre-attachment state has a shape that presses against the front plate portion 34a and extends straight along the front plate portion 34a.

  As shown in FIG. 3, when the spring portion 32 is in the post-installation state, the right end portion of the spring portion 32 faces rearward, the left end portion faces rearward and comes into contact with the front plate portion 34a. A portion between the right end portion and the left end portion protrudes more forward than the left protruding portion 34e and the right protruding portion 34g in the free state shown in FIG.

  The switching portion 33 has the same plate shape as the spring portion 32, the right end portion of the switching portion 33 is integrally formed with the right protruding portion 34 g of the frame portion 34, and the left end portion is integrally formed with the right end portion of the spring portion 32. Has been. The switching unit 33 has a middle portion in the left-right direction that can be bent in the front-rear direction. Further, the force of the spring portion 32 is applied to the switching portion 33. Thus, when the intermediate portion of the switching portion 33 is bent backward (shown in FIG. 4), when the intermediate portion is pressed forward, the intermediate portion is bent so as to protrude rearward due to the elasticity of the resin material. (Shown in FIG. 3). Moreover, when the intermediate part of the switching part 33 is curved backward, when the intermediate part is pressed forward, it curves so as to protrude forward.

  As shown in FIG. 4, in a state where the switching portion 33 is bent forward, the left side of the switching portion 33 extends rearward, so that the spring portion 32 is bent rearward to be in a pre-attachment state. . On the other hand, as shown in FIG. 3, in a state where the switching portion 33 is bent backward, the left side of the switching portion 33 extends forward, so that the spring portion 32 is bent forward and attached. It becomes. That is, the spring part 32 can be switched between the pre-attachment state and the post-attachment state simply by applying a force in the front-rear direction to the intermediate part of the switching part 33.

  On the other hand, on the inner surface of the front wall portion 21 a of the filter housing portion 21, an operation protrusion 40 that operates the switching portion 33 of the filter 30 is formed so as to protrude rearward. The operation protrusion 40 is positioned at a portion of the front wall portion 21b that faces the central portion in the left-right direction of the switching portion 33. As shown in FIGS. 7 and 8, the protruding amount of the operation projection 40 hits the switching unit 33 before the filter 30 in the pre-installation state is completely inserted into the filter housing unit 21, and the switching unit 33 is moved backward. It is set so that it can be pushed and curved.

  The left end surface to the front end surface of the operation projection 40 are configured by an arc surface 40a, and the right side surface of the operation projection 40 is configured by a flat surface 40b extending in the front-rear direction. Therefore, the operation protrusion 40 has a tapered shape in which the dimension in the left-right direction is shortened as it approaches the tip.

  Further, as shown in FIG. 2, a centrifugal multiblade fan (air conditioning device) 23 is disposed below the filter housing portion 21 with its rotation axis directed in the vertical direction. Below 23, a fan drive motor 24 for driving the fan 23 is disposed. In addition, the arrow in FIG. 1 has shown the flow of air.

  The left end portion of the intermediate duct 5 is fixed to the right side wall portion of the casing 6 in the air blowing portion 8, and the left end portion of the intermediate duct 5 passes through an opening (not shown) formed in the right side wall portion of the casing 6. The air flow path S in the casing 6 is in communication. The intermediate duct 5 is formed to extend obliquely downward from the left end portion toward the lower end portion of the air conditioning unit 4. The right end portion of the intermediate duct 5 is opened at the lower end portion of the casing 30 of the air conditioning unit 4 and is connected to an inlet (not shown) for introducing air for air conditioning into the casing 30. A control circuit 26 for controlling the rotational speed of the fan drive motor 24 is disposed on the upper wall of the intermediate duct 5.

  As shown in FIG. 1, the casing 30 of the air conditioning unit 4 is long in the vertical direction as a whole, and is larger than the casing 6 of the blower unit 3. An air flow path R extending upward from the introduction port 25 is provided in the casing 30. In the air flow path R, an evaporator (air conditioning device) 34 as a cooling heat exchanger and a heater core 43 as a heating heat exchanger are arranged. The conditioned air is generated by mixing the air that has passed through the evaporator 34 and the air that has passed through the heater core 43. The casing 30 is formed with a face air outlet 66, a foot air outlet (not shown), and a defroster air outlet (not shown). These outlets are opened and closed by an outlet direction switching damper (not shown) disposed in the casing 30.

  Next, the operation time of the air conditioner 1 will be described. As shown in FIG. 3, in the state where the filter 30 is housed in the filter housing portion 21, the spring portion 32 is in a post-attachment state. Therefore, the spring portion 32 is in pressure contact with the inner surface of the filter housing portion 21, and the filter 30 is biased in the direction of exiting from the attachment / detachment hole 21 e so that the rear end portion of the filter 30 is in pressure contact with the inner surface of the lid member 45. Thereby, since the filter 30 does not rattle in the filter accommodating part 21, the vibration of the filter 30 can be suppressed without providing a buffer material.

  Next, the case where the filter 30 is replaced will be described. First, the lid member 45 of the blower unit 3 is removed from the casing 6 to open the attachment / detachment hole 21b. Then, since the filter 30 is urged by the spring portion 32 in the direction of exiting the desorption hole 21e, the rear portion of the filter 30 jumps out from the desorption hole 21e simultaneously with the opening of the desorption hole 21e as shown in FIG. . Accordingly, even when the desorption hole 21e is not visible or when the space for replacing the filter 30 is not sufficient, the filter 30 can be easily removed from the desorption hole 21e by grasping the rear portion of the filter 30 by hand. It becomes possible to take out.

  Then, when accommodating the new filter 30 in the filter accommodating part 21, first, as shown in FIG. 4, the spring part 32 is made into the state before attachment. And the filter 30 is inserted in the filter accommodating part 21 from the removal | desorption hole 21e. At this time, as shown in FIG. 5, since the spring portion 32 is in the pre-attachment state, the urging force of the spring portion 32 may interfere with the insertion operation of the filter 30 during the insertion of the filter 30. There is no insertion workability.

  And just before the filter 30 is completely inserted, the cover member 45 is applied to the rear end face of the filter 30 and the filter 30 is inserted. As the filter 30 is inserted, the operation protrusion 40 of the filter housing portion 21 hits the switching portion 33 of the filter 30 and presses the switching portion 33 rearward. As shown in FIG. 3, the switching portion 33 pressed by the operation protrusion 40 is curved so as to protrude rearward, whereby the spring portion 32 is in a post-attachment state and presses against the inner surface of the filter housing portion 21. When the filter 30 is completely inserted, the claw of the lid member 45 engages with the peripheral edge of the attachment / detachment hole 21e, and the lid member 45 is attached to the casing 6. Thereby, the new filter 30 does not jump out of the desorption hole 21e.

  As described above, according to the first embodiment, the filter 30 is provided with the spring portion 32 to urge the filter main body 31 in the direction of exiting from the attachment / detachment hole 21e of the casing 6. Exchange workability can be improved. Furthermore, since the filter 30 can be pressed against the lid member 45 in the casing 6 by the urging force of the spring portion 32, vibration of the filter 30 can be suppressed at low cost without providing a cushioning material, and abnormal noise can be prevented. it can.

  In addition, since the spring portion 32 can be switched between a post-attachment state in pressure contact with the inner surface of the casing 6 and a pre-attachment state in which the spring portion 32 is separated from the inner surface of the casing 6, the insertion workability of the filter 30 can be improved.

  Further, since the operation projection 40 is provided on the casing 6, the urging portion 33 of the filter 30 can be switched to the post-installation state only by performing the operation of inserting the filter 30 into the filter housing portion 21. The property can be further improved.

<< Embodiment 2 >>
FIG. 9 shows a filter 30 according to the second embodiment of the present invention. The air conditioner of the second embodiment is different from that of the first embodiment only in the structure of the filter 30 and the structure of the filter housing portion 21 and the lid member 45 of the casing 6, and other parts are the same. Hereinafter, a different part from Embodiment 1 is demonstrated in detail.

  The frame portion 34 of the filter 30 is provided with a connecting plate portion 34h for connecting the front plate portion 34a and the rear plate portion 34d, and a switching pressing portion 34i for switching the bending direction of the spring portion 32. The connecting plate portion 34h extends straight from the center portion in the left-right direction of the front plate portion 34a to the center portion in the left-right direction of the rear plate portion 34d substantially parallel to the left plate portion 34b and the right plate portion 34c.

  The switching pressing portion 34i is configured by a protrusion that protrudes forward from the formation portion of the connecting plate portion 34h in the front plate portion 34a. The vicinity of the central portion in the left-right direction of the spring portion 32 in the pre-attachment state is in contact with the tip of the switching pressing portion 34i.

  As shown in FIGS. 10 and 11, an operation portion 45 a for operating the switching pressing portion 34 i is provided at a portion of the lid member 45 that faces the filter 30. This operation part 45a is comprised by the protrusion which protrudes back, and is located in the center part of the left-right direction of the cover member 45 so as to correspond to the connection board part 34h.

  In the second embodiment, when the filter 30 is housed in the filter housing portion 21, as shown in FIG. 10, after the filter 30 is inserted into the filter housing portion 21, the lid member 45 is moved as shown in FIG. When pressed against the filter 30, the operation portion 45 a of the lid member 45 pushes a portion corresponding to the connecting plate portion 34 h in the rear plate portion 34 d of the frame portion 34 forward. Then, the connecting plate portion 34h is stretched between the front plate portion 34a and the rear plate portion 34d, and the front plate portion 34a is pushed forward by the connecting plate portion 34h. Thereby, the switching pressing portion 34i pushes the spring portion 32 forward, the bending direction of the spring portion 32 is switched, and the spring portion 32 is in the post-attachment state. That is, the spring part 32 can be switched to the post-attachment state simply by pressing the filter 30 with the lid member 45.

  In the state where the filter 30 is housed in the filter housing portion 21, the backlash of the filter 30 is eliminated by the spring portion 32 being pressed against the inner surface as in the first embodiment.

  Further, when the filter 30 is taken out when the filter 30 is replaced, it can be easily taken out by the urging force of the spring portion 32 as in the first embodiment.

  As described above, according to the second embodiment, since the spring portion 32 is provided in the filter 30, the replacement workability of the filter 30 can be improved, and the filter 30 can be manufactured at low cost without providing a cushioning material. Vibration can be suppressed and abnormal noise can be prevented.

  In addition, the shape of the spring part 32 is not restricted to a board, For example, a rod shape may be sufficient. Two or more spring portions 32 may be provided in one filter 30.

  In the first and second embodiments, the case where the air passage surface of the filter 30 is substantially horizontal has been described. However, the present invention is not limited to this. For example, the case where the air passage surface of the filter 30 is substantially vertical or is inclined. The present invention can be applied even in the case of

  Moreover, although the said Embodiment 1 and 2 demonstrated the case where this invention was applied to the semi-center type in which the air conditioner 1 was divided | segmented into the ventilation unit 3 and the air conditioning unit 4, it is not restricted to this, For example, a ventilation fan The present invention can also be applied to a full center type in which the heat exchanger is accommodated in one casing.

  As described above, the vehicle air conditioner according to the present invention is suitable for being disposed in an instrument panel, for example.

DESCRIPTION OF SYMBOLS 1 Vehicle air conditioner 6 Casing 21 Filter accommodating part 21e Desorption hole 23 Fan (air-conditioning apparatus)
30 Filter 31 Filter body 32 Spring portion 33 Switching portion 34 Frame portion 34i Switching pressing portion 40 Operation protrusion (casing side operation portion)
45 Lid member 45a operation part (lid member side operation part)
S Air flow path

Claims (6)

A casing having an air flow path into which air conditioning air is introduced while accommodating air conditioning equipment;
In a vehicle air conditioner comprising a filter housed in an air flow path in the casing and filtering air flowing through the air flow path,
A desorption hole for detaching the filter is formed on the wall of the casing, and a lid member for opening and closing the desorption hole is attached,
The filter includes a filter main body having a filter medium, and an urging portion for urging the filter main body in a direction of exiting the casing from the desorption hole,
The vehicle air conditioner is characterized in that the filter is held in contact with the lid member in the casing. In the vehicle air conditioner according to claim 1,
The urging portion of the filter is composed of a spring portion that protrudes away from the filter body and presses against the inner surface of the casing.
The vehicle air conditioner, wherein the filter is provided with a switching unit that switches the spring portion between a state in which the spring portion is pressed against the inner surface of the casing and a state in which the spring portion is separated from the inner surface of the casing. In the vehicle air conditioner according to claim 2,
A vehicle air conditioner, wherein a casing-side operation unit for operating the switching unit is provided in a portion of the casing facing the switching unit of the filter. In the vehicle air conditioner according to claim 2,
The spring portion has a long shape and is formed so as to be switched between a state curved in a direction in pressure contact with the inner surface of the casing and a state curved in a direction away from the inner surface of the casing,
On the filter body, a switching pressing portion that switches the bending direction of the spring portion by pressing the spring portion that is bent in a direction away from the inner surface of the casing so as to bend in a direction in pressure contact with the inner surface of the casing. A vehicle air conditioner is provided. The vehicle air conditioner according to claim 4,
A vehicular air conditioner characterized in that a lid member side operation portion for operating the switching pressing portion is provided at a portion of the lid member facing the filter. In the vehicle air conditioner according to any one of claims 1 to 5,
The filter main body has a frame portion made of an elastic resin material formed so as to surround the peripheral edge portion of the filter material,
The vehicle air conditioner is characterized in that the urging portion is integrally formed with the frame portion.

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