WO1999015835A1

WO1999015835A1 - Air conditioner

Info

Publication number: WO1999015835A1
Application number: PCT/JP1998/004246
Authority: WO
Inventors: Takehiko Sato
Original assignee: Kabushiki Kaisha Toshiba
Priority date: 1997-09-22
Filing date: 1998-09-21
Publication date: 1999-04-01
Also published as: JPH1194289A; CN1239542A; EP0947781A1; EP0947781B1; KR20000068353A; CN1183358C; EP0947781A4; JP3672419B2

Abstract

An air conditioner wherein an indoor unit (1) is provided with a filter holding frame (5) disposed adjacent to the front surface of an indoor heat exchanger (11a), a filter case (7) fitted detachably to the front surface side of the filter holding frame (5), and a handle (34) having the inside thereof serving as an opening (34a) penetrating towards the heat exchanger (11a) side and fitted to the lower part of the filter case (7). The filter holding frame (5) is equipped with a partition wall (50) sandwiched between the handle (34) of the filter case (7) and the heat exchanger (11a) when the filter case (7) is fitted. The partition (50) of the filter holding frame (5) permits the handle (34) to be easily gripped while preventing fingertips from contacting the indoor heat exchanger (11a) when the filter case (7) is attached or detached.

Description

Description Air Conditioner Technical Field

The present invention relates to an air conditioner, and more particularly to a filter holding frame provided adjacent to a front surface of an indoor heat exchanger, and a filter case detachably attached to the front side of the filter holding frame. The present invention relates to an air conditioner in which a filter handle is provided on the filter case.

Background art

The indoor unit of the conventional air conditioner shown in FIG. 12 includes a filter case 107 removably mounted adjacent to the front side of the indoor heat exchanger 110. This filter case 107 incorporates a discharge section 170 and a dust collection section 1702 of the electric dust collection type air purifier. Then, when the room air sucked from the suction grill 102 first passes through the pre-filter 130 and then passes through the filter case 107, dust and the like contained in the room air are electrically collected. It is becoming dusty.

In such an air conditioner, it is necessary to remove the filter case 107 and wash it thoroughly at appropriate intervals. For this reason, the filter case 107 is normally fixedly held by a filter holding frame (not shown), and is configured to be detached from the holding frame during cleaning. Further, as shown in FIGS. 12 and 13, a lower portion of the filter case 107 is provided with a handle portion 134 for grasping by hand at the time of attachment and detachment.

As shown in FIGS. 13 and 14, the handle portion 13 4 includes a frame-shaped handle body 135 and a barrier portion provided on the heat exchanger 110 side of the handle body 135. 13 6 and 13 7. These barriers 1 3 6, 1 3 7 grasp the handle body 1 3 5 by hand At this time, it consists of a plurality of bars to prevent the fingertips from being damaged by the fins of the heat exchanger 110, and an outer barrier portion 136 formed outside the handle body 135. However, it is also divided into an inner barrier portion 13 7 formed inside.

The conventional air conditioners as described above have the following problems. First, as shown in FIG. 14, the above-mentioned handle portion 13 4 has a depth force of a portion that can be gripped by the hand of the handle body 135, and the entire depth H of the barrier portions 13 6 and 13 7. [Thickness]! For this reason, when removing the filter case 107, it is difficult to grasp the handle body 135 by hand.

In addition, the handle body 135 cannot be completely grasped by hand due to the inner barrier portion 135 inside the handle body 135. For this reason, there is a problem that it is difficult to carry the filter case 107 after being removed, and it is difficult to perform an operation force such as immersing the filter case 107 in water and shaking the filter case 107 during the above-mentioned washing with rounding.

The present invention has been made in view of the above points, and provides an air conditioner in which a fingertip does not touch a heat exchanger when attaching and detaching a filter case, and a handle portion of the filter case is easily grasped. The purpose is to do.

Disclosure of invention

The present invention relates to an indoor heat exchanger, a filter holding frame provided adjacent to a front surface of the heat exchanger, and a filter removably attached to a front side of the filter holding frame and housing the filter therein. An air conditioner including a case, a handle portion having an opening penetrating in the front-rear direction inside the filter case is provided at a lower portion of the filter case, and the filter case is attached to the filter holding frame. An air conditioner characterized by providing a barrier portion interposed between the handle of the filter case and the heat exchanger in the folded state.

According to this invention, since the inside of the handle provided in the filter case is an opening penetrating in the front-rear direction, the handle can be completely grasped by hand. Also, The filter holding frame is provided with a barrier interposed between the handle of the filter case and the heat exchanger when the filter case is attached. Can avoid touching the heat exchanger. In this case, since the barrier portion is provided not in the handle portion but in the filter holding frame, the depth of the handle portion can be made sufficiently large, and a finger can be inserted deeper into the handle portion through the opening.

Therefore, the filter case can be easily attached and detached by preventing the fingertip of the hand from touching the heat exchanger when attaching and detaching the filter case. In addition, since the handle of the filter case can be completely grasped by hand, it is easy to carry the filter case, and it is also easy to perform an operation force such as immersing the filter case in water and shaking the filter case even during washing with washing.

In the present invention, the barrier portion may be substantially flat. In the present invention, the barrier portion may be constituted by a lattice forming a large number of openings, or may be constituted by a plurality of bars. In this case, indoor air can be flown to the heat exchanger through the barrier, which is advantageous in securing air conditioning performance.

In the present invention, when the barrier portion is constituted by a lattice forming a large number of openings or a plurality of bars, each of the openings of the lattice or each formed between the plurality of bars is provided. The openings preferably have a size such that a fingertip of a person does not contact the heat exchanger. By doing so, it is possible to reliably prevent the contact of the fingertip with the heat exchanger while securing the flow of the indoor air to the heat exchanger in the barrier portion.

In the present invention, the barrier portion can be formed integrally with the filter holding frame.

In the present invention, the filter accommodated in the filter case is used as an electrostatic precipitating air It may constitute a dust collecting part of the air purifier. In this case, the filter case may further house the discharge part of the electrostatic precipitating air purifier.

In the present invention, it is strongly preferable that the handle portion of the filter case has a corrugated uneven portion formed inside thereof. By doing so, the operator can bring the finger of the hand into close contact with the corrugated uneven portion inside the handle portion, and securely grip the handle portion.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a front view showing an attached state of a filter case of an indoor unit (in a state in which a suction filter is opened and a pre-filter is removed) in an HSfe mode of an air conditioner according to the present invention.

FIG. 2 is a plan view showing a filter case of the indoor unit of the air conditioner shown in FIG. FIG. 3 is a diagram showing a state where a filter case is removed from the indoor unit of the air conditioner shown in FIG.

FIG. 4 is a partial perspective view of the state shown in FIG.

FIG. 5 is a cross-sectional view of the indoor unit of the air conditioner shown in FIG. 1, showing a state in which a suction grill is closed.

FIG. 6 is a diagram showing the air conditioner indoor unit shown in FIG.

FIG. 7 is a perspective view for explaining that the indoor panel is opened and the air cleaning filter is removed in the indoor unit of the air conditioner shown in FIG.

FIG. 8 is a diagram showing a cross section of the filter case, the filter holding frame, the front panel, and the indoor heat exchanger in the filter holding plate portion of the filter holding frame in the indoor unit of the air conditioner shown in FIG. .

FIG. 9 is a view similar to FIG. 8, showing a procedure for removing the filter case from the filter holding frame. FIGS. 10a and 10b are views each showing another form of the barrier portion in the filter holding frame of the air conditioner shown in FIG.

FIG. 11 is a perspective view showing a state in which the filter case shown in FIG.

FIG. 12 is a cross-sectional view showing the vicinity of an air cleaning filter in a conventional air conditioner.

FIG. 13 is a perspective view showing a filter case of the air conditioner shown in FIG. FIG. 14 is an enlarged view showing a handle portion of the filter case of FIG.

BEST MODE FOR CARRYING OUT THE INVENTION

Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 11 are diagrams showing an embodiment of an air conditioner according to the present invention.

First, Fig. 7 shows that the suction grill 2 on the front side 1a of the indoor unit 1 of the air conditioner is opened, the pre-filter 3 is removed, and the filter case 7 is removed from the filter holding frame 5 attached to the indoor unit 1 body. This shows a state in which the deodorizing filter 9 has been removed.

5 and 6 are cross-sectional views illustrating a schematic configuration of the indoor unit 1 of the air conditioner. FIG. 5 shows a state in which the suction grill 2 is closed, and FIG. 6 shows a state in which the suction grill 2 is opened.

In FIG. 5, inside the indoor unit 1, a dust collecting filter 10 is provided at the upper front, and the indoor heat exchangers 11a, lib, 11 are provided behind the dust collecting filter 10. c The fan is installed in the center. Drain pans 13 and 13a are provided below the indoor exchangers 11a and 11b, and an outlet 14 with a movable lever is provided below the drain pan 13 . The entire body of the indoor unit 1 is covered with a front panel 30, and an upper grill 2 a is provided on the upper surface of the front panel 30.

The rotation of the fan 1 2 allows indoor air to flow through the intake grill 2 and the upper grill 2a. Sucked into indoor unit 1. The sucked air is firstly preliminarily removed of large dust and the like by the pre-filter 3, and is further deodorized by the deodorizing filter 9 while the dust is removed by the dust collecting filter section 10, and the indoor heat exchanger 1 is removed. Heat exchange occurs at 1 a, lib and 11.

Refrigerant power is sent into the refrigerant pipes of the indoor heat exchangers 11a, lib, and 11c by an outdoor unit (not shown). The refrigerant circulates in the refrigerant pipe in a flow direction corresponding to each of the cooling mode and the heating mode. The air that has been heat-exchanged in the indoor heat exchangers 11a, lib, 11c is returned to the room through the outlets 14. Moisture in the air condensed in the indoor heat exchangers 11a, lib, 11c is led to the drain pans 13, 13a, and removed outside.

Next, the dust collecting filter section 10 will be described in detail. The dust collection filter section 10 includes a panel-shaped filter holding frame 5 attached to the indoor unit 1 main body, and a filter case 7 detachably mounted on the filter frame 5. In addition, as shown in FIG. 1 or FIG. 7, the filter holding frame 5 is detachably attached to the left side of the filter case 7 with a deodorizing filter 9.

As shown in FIG. 2, the filter case 7 has a horizontally long rectangular shape, and a grip portion 34 is provided at a lower portion thereof. As shown in FIGS. 1 and 5, the inside of the handle portion 34 has an opening penetrating in the front-rear direction, that is, toward the heat exchanger 11a when the filter case 7 is mounted on the filter holding frame 5. 3 4 a. Note that, as shown in FIG. 2, a wavy uneven portion 36 is formed inside the handle portion 34 so that fingers of the hand can be easily positioned when the hand is put. As shown in FIG. 5, the filter case 7 accommodates the discharge part 70 and the dust collection part (filter) 72 of the electrostatic precipitating air purifier inside, and the dust or the like passing through the pre-filter 3. It is configured to electrically collect dust.

As shown in FIG. 3, the filter holding frame 5 has a via at its end fixing portion 15. Screwed to the front end plate of the indoor heat exchanger 11a in the main unit of the indoor unit 1. As shown in FIGS. 3 and 4, the outer peripheral frame 5 a of the filter holding frame 5 is formed by a grid portion 30 a of the front panel 30 on the front side of the dust collecting filter 10. Is covered from the front side and pressed toward the rear side (see the shaded area in Fig. 3).

As a result, the filter holding frame 5 is fixed to the main body of the indoor unit 1 at the end fixing portion 15 and the outer peripheral frame portion 5a is covered with the front panel lattice portion 30a. In addition to preventing the lifting of 5 above, vibrations during operation are prevented by pressing.

As shown in FIGS. 3 to 5, below the filter holding frame 5, a barrier portion 50 formed integrally with the filter holding frame 5 by a synthetic resin is provided. As shown in FIG. 1, FIG. 5 and FIG. 8, when the filter case 7 is mounted on the filter frame 5, as shown in FIGS. 1, 5 and 8, the handle 34 of the filter case 7 and the heat exchanger 11a It is interposed between and. In the front panel 30, a cutout is formed in a portion corresponding to the barrier 50 provided in the filter holding frame 5. In addition, as shown best in FIG. 8, the barrier portion 50 is preferably formed to have substantially the same thickness as the outer peripheral frame portion 5a of the filter holding frame 5. By doing so, the gap between the filter case 7 and the heat exchanger 11a, which is originally thicker than the thickness of the filter frame 5, can be effectively used, and each part at the position of the handle portion 34 of the filter case 7 can be used. This does not affect the thickness dimension in the front-rear direction (see Fig. 5).

In addition, instead of providing the filter holding frame 5 with the barrier 50, it is not conceivable to extend the front panel 30 to the position of the barrier 50. However, unlike the filter holding frame 5, the front panel 30 must be provided sufficiently separated from the heat exchanger 11a. This is because, as shown in Fig. 5, the front panel 30 extends downward to the vicinity of the outlet 14 and the moisture generated by condensation by cooling with the heat exchanger 11a This is because it is necessary to prevent the air from flowing out of the outlet 14 through the panel 30. Therefore, in the configuration in which the front panel 30 distant from the heat exchanger 11 a is extended to the position of the barrier 50, the above-mentioned gap cannot be effectively used, and the opening 34 a of the handle 34 is not provided. Depth force to put your finger through <shallower.

Here, as shown in FIGS. 3 and 4, the barrier section 50 has openings 54 between the plurality of bars 52 in order to secure the flow of indoor air to the heat exchanger 11a. It has a force-formed structure. Note that, instead of such a barrier portion 50, a barrier portion 5OA configured by a lattice forming a large number of openings 56 as shown in FIG. 10a may be provided. In this case, the openings 54 or 56 of the barrier section 50 or 5OA are formed in such a size that they do not come into contact with the heat exchanger 11a with the fingertip force of a person.

Here, as shown in FIG. 10b, a substantially flat barrier portion 50B may be provided, but from the viewpoint of securing the air conditioning capacity of the air conditioner, the barrier portions 50, 50A are required. It is preferable to provide a device having an opening for ensuring the flow of indoor air to the heat exchanger 11a as described above.

Next, the installation of the filter case 7 with respect to the filter holding frame 5 will be described in detail. As shown in FIGS. 1, 3, and 4, filter holding plates 20 are provided upright on both sides of the filter holding frame 5 in which the filter case 7 is mounted. On the other hand, as shown in FIG. 2, on both side surfaces of the filter case 7, a protruding engagement portion 31 and a guide portion 32 located a predetermined length above the engagement portion 31 are provided. Have been. As shown in FIG. 8 or FIG. 9, the engaging portion 31 has a cylindrical shape, the guide projection 32 has a cylindrical portion 32 a on the back side (upper side), and the front side has a plate shape. It has a plate-like portion 32b.

As shown in FIG. 4, the filter holding plate 20 is formed with a locking portion 22 and a guide portion 24. The locking portion 22 has an opening 2 2 a opening toward the front side 1 a of the indoor unit 1 and an opening 22 a extending from the front side 1 a to the rear side of the indoor unit 1. A locking groove 22b is formed.

A claw 22c is provided at an upper portion of the locking groove portion 22b, and a holding portion 22d is provided at a lower portion. The filter holding frame 22 and the filter holding plate 20 are both made of synthetic resin, and the claws 22 c have elasticity and are formed to bend slightly in the vertical direction when a force is applied. Have been. On the other hand, the holding portion 22 d is firmly formed so that it is hardly deformed. As shown in FIG. 8, the engaging portion 31 of the filter case 7 is fitted into the opening 22a and is fitted to the claw 22c and the holding portion 22d at the upper end of the locking groove 22b. It is kept sandwiched.

Here, since the opening 22a of the locking portion 22 faces the front surface of the main unit of the indoor unit 1 with the suction grille 2 opened, the position can be easily visually recognized from the outside. In addition, the guide portion 24 has an opening 24 a that opens diagonally downward with respect to the front side 1 a of the indoor unit 1 main body and is located near the opening 22 a, and an opening 24 a A cutting groove 24b extending obliquely upward from the rear is formed. The rear end 24 c of the cut groove 24 b is formed in a semicircular shape, and as shown in FIG. 8, the distal end 24 c of the cylindrical portion 32 a of the guide projection 32 has no gap. It is formed so that it can contact.

Next, with reference to FIG. 8 and FIG. 9, the attachment / removal of the engagement member 31 to / from the locking portion 22 and the attachment / removal of the guide protrusion 32 to / from the guide portion 24 will be described.

FIG. 8 shows a state where the filter case 7 is attached to the filter frame 5. In FIG. 8, the cylindrical portion 32a of the guide portion 32 is inserted through the opening 24a, guided along the cut groove 24b, and abuts the rear end 24c. The plate-shaped portion 32b of the guide projection 32 is guided in the depth direction of the cut groove 24b while being in contact with the upper surface forming the end force cut groove 24b on the near side in the insertion direction. Push the filter case 7 from the front side to the rear side at the position where the cylindrical part 3 2a abuts on the back end part 24 c so that the cylindrical separating force <31 Press and bend the kerf 2 2 b at the entrance Spread it out.

When further force is applied, the protrusion 31 gets over the tip of the claw 22c and fits inside the cut groove 22b. At this position, 5¾g 31 is sandwiched and fixed by the base of the claw 22 c on the upper side and the holding section 22 d on the lower side. That is, the engaging portion 31 is fitted into the locking portion 22, and at the same time, the contact of the end of the plate-shaped portion 32 b with the upper surface of the cut groove 24 b is released, and is parallel to the cut groove 24 b. It becomes a positional relationship.

FIG. 9 shows a procedure for removing the filter case 7 from the filter frame 5. In FIG. 9, first, the filter case 7 and the filter holding frame 5 are in the state shown in FIG. First, put a hand on the corrugated uneven portion 34 a of the handle portion 34, and pull the handle portion 34 in the direction C, that is, in the direction toward the front of the front portion 1 a of the outdoor unit 1 main body or diagonally above. The cylindrical portion 32a of the guide projection 32 rotates while abutting against the rear end 24c, and the plate-shaped portion 32b of the guide projection 32 forms the cut groove 24b. Move until it touches. At the same time, the cylindrical force-feeding pawl 22c, which is the engaging part 31, is pushed upward and bent, and the entrance of the locking groove part 22b is pushed out, and finally, the tip of the pawl 22c is crossed. Then, it comes out of the locking groove portion 2 2b and moves forward from the front portion 1a, and the plate-shaped portion 32b contacts the upper surface of the locking groove portion 24b and stops moving at the same time.

Next, bow the handle 34 in the direction D, that is, downward or diagonally forward of the outdoor unit 1 body! Good. The cylindrical portion 3 2a of the guide protrusion 32 is separated from the deep end 24c of the locking groove 24b, and the plate-like portion 32b of the guide protrusion 32 forms the locking groove 24b. The guide protrusion 32 is guided downward while contacting the upper surface, and the cylindrical portion 32 a of the guide protrusion 32 comes out of the opening 24 a, and the guide protrusion 32 is removed from the guide 24.

Next, the operation and effect of this embodiment having the above configuration will be described. According to the present embodiment, the inside of the handle portion 34 provided in the filter case 7 is an opening 34 a penetrating in a front-rear direction, so that the handle portion 34 can be completely grasped by hand. it can. Also, since the filter holding frame 5 is provided with a barrier 50 interposed between the handle 34 of the filter case 7 and the heat exchanger 11a when the filter case 7 is attached, the barrier 50 is provided. 50 makes it possible to prevent the fingertip of the hand from touching the heat exchanger when attaching and detaching the filter case 7.

In this case, since the barrier portion 50 is provided not in the handle portion 34 of the filter case 7 but in the filter holding frame 5, the depth of the handle portion 34 can be made sufficiently large. Further, compared to the case where the front panel 30 is extended to the position of the barrier portion 50, the finger can be inserted further into the back through the opening 34a of the handle portion 34 of the filter case 7.

For this reason, it is possible to easily attach and detach the filter case 7 by preventing the fingertip of the hand from touching the heat exchanger 11a when attaching and detaching the filter case 7, and easily grasping the handle 34 of the filter case 7. it can. Also, since the handle 34 of the filter case 7 can be completely grasped by hand, the carrying of the filter case 7 becomes easier and, as shown in FIG. It becomes easy to perform operation force such as immersing the whole 7 in water and shaking.

Furthermore, since the handle 34 of the filter case 7 is formed with the corrugated portion 34a, the operator brings his / her finger into close contact with the corrugated portion on the inside of the handle, and The part can be grasped securely.

Also, an engaging portion 31 provided in the filter case 7 is pressed against the rear side of the indoor unit 1 from the front side la to the locking portion 22 formed on the filter holding frame 7. The filter case 7 is locked by pulling the indoor unit 1 from the rear side toward the front side 1a of the indoor unit 1 so that the engagement unit 31 is disengaged from the locking unit 22. The holding frame 5 can be safely and reliably attached and detached easily.

A guide projection 32 is provided on the filter case 7 and a guide is provided on the filter holding frame 5. Since the portion 24 is formed so that the engaging portion 31 is disengaged from the engaging portion 22 and is guided by the guiding portion 32 strongly, the filter case is formed. 7 can be attached to and detached from the filter holding frame 5 more safely, reliably and easily.

The guide portion 24 is formed with a locking groove 24 a so that the front end of the guide portion 32 in the inserting direction is guided along the upper surface forming the locking groove 24 b. With this configuration, the direction of movement of the guide section 32 in the locking groove 24b can be determined in a single direction, and the filter case 7 can be safely, reliably and easily moved with respect to the filter holding frame 5. Can be installed and removed.

With the intake grille 2 open, the opening 22a of the locking part 22 faces the front surface of the indoor unit 1, so that its position can be easily visually recognized from the outside, and The filter case 7 can be securely attached and detached without performing any operation.

When the cylindrical portion 3 2 a of the guide portion 32 is in a position in contact with the rear end portion 24 c of the locking groove portion 24 b, the engaging portion 31 is in the opening portion 22 of the locking portion 22. Since it is located at a position where it can be fitted into a, it is possible to easily fit the engagement member 31 into the locking portion 22 by waiting for the cylindrical portion 32 a to come into contact with the back end portion 24 c.

The outer peripheral frame portion 5a of the filter holding frame 5 is covered from the front side 1a of the indoor unit 1 main body to the rear side by the grid portion 30a of the front panel 30 on the front side of the dust collecting filter portion 10. Further, since the filter holding frame 5 is pressed, the filter holding frame 5 can be effectively prevented from being vibrated during operation only by being screwed at the end fixing portion 15.

In the above description, an example is shown in which the locking portion 22 is formed in a concave shape by forming the opening portion 24a, and the locking portion 31 is formed in a convex shape. The locking portion may be formed in a convex shape and the opening portion may be formed in a concave shape.

Claims

The scope of the claims

1. An indoor heat exchanger, a filter holding frame provided adjacent to the front of the heat exchanger, and a filter case detachably mounted on the front side of the filter holding frame and housing a filter inside. In the equipped air conditioner,

At the lower part of the filter case, a handle is provided, the inside of which is an opening penetrating in the front-rear direction,

An air conditioner, characterized in that the filter holding frame is provided with a barrier interposed between a handle of the filter case and the heat exchanger when the filter case is mounted.

2. The air conditioner according to claim 1, wherein the barrier portion has a substantially flat shape.

3. The air conditioner according to claim 1, wherein the barrier portion is constituted by a lattice forming a large number of openings.

4. The air conditioner according to claim 1, wherein the barrier section includes a plurality of bars.

5. The air conditioner according to claim 3, wherein each opening of the lattice has a size such that a fingertip of a person does not contact the heat exchanger.

6. The air conditioner according to claim 4, wherein each opening formed between the plurality of bars has a size such that a fingertip of a person does not contact the heat exchanger. Machine.

7. The air conditioner according to claim 1, wherein the barrier portion is formed integrally with the filter holding frame.

8. The air conditioner according to claim 1, wherein the filter housed in the filter case forms a head of an electrostatic precipitating air purifier.

9. The air conditioner according to claim 8, wherein the filter case further houses a discharge part of an electrostatic precipitating air purifier.

10. The air according to any one of claims 1 to 9, wherein the handle of the filter case has a wave-shaped uneven portion formed inside the handle. Harmony machine.