JPH10170022A - Indoor unit of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of components required for the installation of a safety grill by providing a safety grill on an outlet opening formed in a first member and holding the safety grill between the first member and a second member. SOLUTION: The outlet path of air conditioned air W of an indoor unit is block structured into an outlet hole forming member 1 that is the first member and a bottom frame 2 that is the second member. The bottom frame 2 forms an airflow path 12 of the air conditioned air W engaging both supporting plates 18 of the bottom frame 2 with both side plates 22 of the outlet hole forming member 1. The safety grill 5 is held between the supporting plates 18 of the bottom plate 2 and the side plates 22 of the outlet hole forming member 1 that are engaged for forming the outlet air path of the air conditioned air W and between a scroll part 11 and the lower plate 21 of the blow out hole forming member 1. Therefore, the number of parts required for the installation of the safety grill 5 is reduced and the workability of assembling is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor unit for an air conditioner having a security grill at an outlet opening.

[0002]

2. Description of the Related Art An indoor unit of an air conditioner is provided with an indoor heat exchanger and a blower fan. The air taken in from the room is exchanged with the indoor heat exchanger to form conditioned air. Is blown into the room by the blower fan. This conditioned air is pressure-fed into the room through an outlet provided in the indoor unit. FIG. 3 is a perspective view showing an outlet forming member 31 forming the outlet 40 in the indoor unit of the conventional air conditioner. FIG. The arrow W in the figure indicates the blowing direction of the conditioned air. As shown in this figure, the outlet forming member 31 is formed integrally with a drain pan 34,
An outlet 40 is formed below the drain pan 34. A security grill 35 is provided on the windward side of the blowout opening 40 in order to prevent a finger from being inserted from the indoor side through the blowout opening 40 to cause an accident by a fan rotor (not shown). ing. The security grill 35 is formed by extending a plurality of U-shaped wires 36 in the longitudinal direction of the blowout opening 40, and the bent side (the right side in the figure) is engaged with a screw 37. While screwing is performed, the other end side is fixed by tightening a screw 37 via a wire pressing plate 39.

[0003]

In the above-mentioned conventional indoor unit of the air conditioner, the security grill 35 is attached to the blowout opening 40 by tightening the screw 37. Since five screws 37 are used in the one shown in FIG. 3, it is necessary to tighten the five screws 37 in the process of attaching the security grill 35. In addition, since the security grill 35 is attached using the screws 37 in this manner, there is a problem that the assembling operability is reduced in the above-described conventional indoor unit of the air conditioner. Further, since a plurality of screws 37 and a wire pressing plate 39 are required for mounting the security grill 35, the number of parts increases, which causes a problem of an increase in cost.

The present invention has been made to solve the above-mentioned conventional drawbacks, and has as its object to reduce the number of parts required for mounting a security grill,
Another object of the present invention is to provide an air conditioner indoor unit capable of improving the assembly workability.

[0005]

Therefore, the air conditioner indoor unit according to claim 1 is characterized in that the first member 1 forming the blow-out opening 10 is provided.
The air-conditioning air outlet passage is divided by the second member 2 forming an air passage 12 connected to the back of the outlet opening 10 and the interior of the air conditioner having the security grill 5 in the outlet opening 10. The security grill 5 is characterized in that the security grill 5 is sandwiched and held between the first member 1 and the second member 2.

In the indoor unit of the air conditioner according to the first aspect,
Since the security grill 5 is held by the first member 1 and the second member 2, a holding member such as a screw can be made unnecessary.

In the indoor unit of the air conditioner according to the second aspect, the first member 1 has an arm 7 for supporting a wind direction control blade 6, and the security grill 5 is locked to the arm 7. The locking claw 13 is provided.

[0008] In the indoor unit of the air conditioner according to the second aspect,
By locking the locking claw 13 of the security grill 5 to the arm 7, it is possible to temporarily fix the security grill 5 by a simple operation in the assembly process.

The indoor unit of the air conditioner according to claim 3 is
The first member 1 has cutouts 16 and 17, and the security grill 5 is provided with fitting claws 14 and 15 adapted to be fitted into the cutouts 16 and 17.

[0010] In the indoor unit of the air conditioner according to the third aspect,
By fitting the fitting portions 14 and 15 into the cutout portions 16 and 17, the security grill 5 can be positioned at a predetermined position and temporarily fixed.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, specific embodiments of the indoor unit of the air conditioner of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a longitudinal sectional view of the indoor unit. However, in order to simplify the drawing and facilitate understanding, the indoor heat exchanger and the suction grill arranged on the suction side have been removed. This indoor unit sucks indoor air R through a suction port (not shown because it is formed on a suction grill) by rotating a fan rotor 3 provided at a central portion in a main body casing of the indoor unit. After the heat is exchanged by the indoor heat exchanger to form the conditioned air W, the air is blown into the room through the blowout opening 10 formed at the lower front side of the main body casing. And in the said indoor unit, such a blowing path of the conditioned air W is divided | segmented by the outlet forming member (1st member) 1 and the bottom frame (2nd member) 2. The outlet forming member 1 is formed integrally with a drain pan 4 disposed below the indoor heat exchanger, as shown in a partially broken perspective view of FIG. The lower plate 21 is provided between the both side plates 22 and 22. The outlet opening 10 is formed so as to be surrounded by these side plates 22, 22, the lower plate 21 and the bottom plate 20 of the drain pan 4. Two arms 7, 7 are provided between the bottom plate 20 and the lower plate 21 of the drain pan 4, and these arms 7, 7 are horizontal flaps for controlling the direction of the blown air in the vertical direction. This is for supporting the (wind direction control blade) 6 rotatably. Further, the both side plates 22 and 22 are provided with cutouts 17 on the upper back side thereof,
Are provided with a plurality of notches 16 on the back side thereof. Reference numeral 9 shown in FIG. 2 is a louver for controlling the direction of the blown wind in the left-right direction.

On the other hand, the bottom frame 2 is composed of a scroll portion 11 smoothly connected from the back of the fan rotor 3 to the lower plate 21 of the outlet forming member 1, and a support plate 18 for rotatably supporting the fan rotor 3 from left and right. (The left support plate is not shown because FIG. 2 is a sectional view). Then, both support plates 18 of the bottom frame 2 are fitted with both side plates 22 of the outlet forming member 1, whereby the bottom frame 2 constitutes the air passage 12 for the conditioned air W.

The outlet 10 is open to the room where the occupant is located. In addition, a fan rotor 3 that is driven to rotate is disposed behind the fan rotor 3. Therefore, in this indoor unit, similarly to the above-mentioned conventional indoor unit, security is provided to the blowout opening 10 in order to prevent an accident such as a hand or a finger being inserted from the blowout opening 10 and causing an accident by the fan rotor 3. A grill 5 is provided. As shown in FIG. 1, the security grill 5 has a net shape, and a plurality of horizontal wires 5 a extending in the longitudinal direction of the blowout opening 10.
And a plurality of vertical wires 5b extending in the short direction of the blow-out opening 10 as well. Fitting claws 14 and 15 are formed at both ends of one of the horizontal wires 5a and at the lower end of each of the vertical wires 5b, respectively, and at the upper ends of two of the vertical wires 5b. A locking claw 13 is formed toward the blowing side, and a hooking end 15a is bent toward the blowing side at a lower end portion of the fitting claw 15 formed on each vertical wire 5b.

The security grill 5 configured as described above is
Attach to the indoor unit as follows. First, each of the two locking claws 13, 13 is locked by holding each of the two arms 7, 7 of the outlet forming member 1 from the front. Then, while the locking claw 13 is locked to the arm 7, the fitting claw 14 formed on the horizontal wire 5 a is fitted from above into the notch 17 provided in the side plate 22 of the outlet forming member 1,
Further, the fitting claw 15 formed on the vertical wire 5b is fitted into the cutout 17 provided on the lower plate 21 of the outlet forming member 1 from the back side, and the engaging end 15a is arranged on the lower surface side of the lower plate 21. Then, the outlet forming member 1 to which the security grille 5 is temporarily fixed is attached to the bottom frame 2 and the horizontal wire 5
a while being inserted between the supporting plate 18 of the bottom frame 2 and the side plate 22 of the outlet forming member 1.
The insertion claw 15 formed on the vertical wire 5b is
And the lower plate 21 of the outlet forming member 1, thereby holding the security grill 5.

In the indoor unit of the air conditioner configured as described above, the support plate 18 of the bottom frame 2 and the side plate 22 of the outlet forming member 1 are fitted to form an air passage for the conditioned air W.
, And between the scroll part 11 and the lower plate 21 of the outlet forming member 1 to hold the security grill 5 therebetween. Therefore, the security grill 5 can be securely attached without using screws or the like, and thereby the cost can be reduced by reducing the number of parts. In addition, since the security grill 5 is attached at the same time as the operation of attaching the outlet forming member 1 to the bottom frame 2, the workability can be improved. Further, the outlet forming member 1 is connected to the bottom frame 2.
Since the security grill 5 can be locked to the outlet forming member 1 in a process before the outlet grill is mounted on the bottom frame 2, an operator manually supports the security grill 5 when attaching the outlet forming member 1 to the bottom frame 2. Such operations are not required, and the workability can be further improved. The security grill 5 is
The fitting claws 14 and 15 can be temporarily fixed by being fitted into the cutouts 16 and 17. Therefore, the security grill 5 can be positioned at a predetermined position in the temporary fixing stage, and when the outlet forming member 1 is attached to the bottom frame 2, there is no need for an operator to adjust the position. Therefore, workability can be further improved. Moreover, the temporarily fixed security grille 5 is restricted from moving in the front-rear direction by the engagement between the locking claw 13 and the arm 7 and the insertion of the fitting claw 15 into the notch 16 from the rear side. Depending on the engagement of the claw 15 into the notch 16, the movement of the claw 15 in the left-right direction is also restricted. The movement in the vertical direction is restricted. Therefore, it is possible to prevent the security grill 5 from being easily displaced in the temporarily fixed state, and it is possible to further improve workability.

Although the specific embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and can be variously modified and implemented within the scope of the present invention. For example, in the above description, the security grill 5 is sandwiched and held between the outlet forming member 1 and the bottom frame 2, but the security grill 5 is sandwiched between other members that divide and configure the ventilation path 12 of the conditioned air W. Alternatively, it may be held. The specific shapes of the security grill 5, the outlet forming member 1, the bottom frame 2, and the like are not limited to those shown in the drawings.

[0018]

According to the indoor unit of the air conditioner of the first aspect, since a holding member such as a screw is not required for holding the security grill, the number of parts is reduced, thereby reducing cost and assembling workability. Improvement can be achieved.

In the indoor unit of the air conditioner according to claim 2,
Since the security grill can be temporarily fixed by a simple operation in the assembling process, the operation of holding the security grill by an operator and the like can be omitted, and thereby the assembling workability can be further improved.

Furthermore, in the indoor unit of the air conditioner according to the third aspect, since the security grill can be temporarily fixed at a predetermined position, the operation of positioning the security grill by an operator or the like is omitted, thereby further improving the assembling workability. It can be improved.

[Brief description of the drawings]

FIG. 1 is a partially broken perspective view of an outlet forming member used in an embodiment of an indoor unit of an air conditioner of the present invention.

FIG. 2 is a longitudinal sectional view of the indoor unit.

FIG. 3 is a perspective view of an outlet forming member used in an indoor unit of a conventional air conditioner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outlet forming member 2 Bottom frame 5 Security grill 6 Horizontal flap 7 Arm 10 Blow-out opening 12 Ventilation path 13 Locking claw 14 Fitting claw 15 Fitting claw 16 Notch 17 Notch

Claims (3)

[Claims] A first member (1) forming an air outlet (10) and a second member (2) forming an air passage (12) connected to the back of the air outlet (10). In an indoor unit of an air conditioner having a blowout passage divided and having a security grille (5) at the blowout opening (10), the security grille (5) includes the first member (1) and the second member (2). An indoor unit for an air conditioner, wherein the indoor unit is sandwiched between and held by a member (2). 2. The first member (1) has an arm (7) for supporting a wind direction control blade (6), and the security grill (5) is locked to the arm (7). The indoor unit for an air conditioner according to claim 1, further comprising a locking claw (13). 3. The first member (1) has a notch (16).
(17), wherein the security grille (5) has an insertion claw (1) adapted to be inserted into the cutouts (16) and (17).
4) The indoor unit for an air conditioner according to claim 1 or 2, further comprising (15).