JP3835038B2 - Panel opening / closing device for air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner, and more particularly to a holding device for a front panel that can be opened and closed on the front surface of a main body.
[0002]
[Prior art]
FIG. 10 is a perspective view showing an indoor unit of a conventional air conditioner disclosed in, for example, Japanese Patent Laid-Open No. 4-50325. FIG. 11 is a side view showing a panel opening / closing device of a conventional air conditioner with a part cut away, and FIG. 12 is an enlarged cross-sectional view showing the main part of the panel opening / closing device of the conventional air conditioner. In the figure, 1 is an indoor unit body of an air conditioner, 2 is a front case of the indoor unit, 3 is a front panel that can be opened and closed to cover the front surface of the front case, and 4 is a rear case of the indoor unit. The indoor unit body 1 is constituted by the front case 2 and the front panel 3 that can be opened and closed. 7 is an axis that is the opening and closing center of the front panel 3, 8 is an engaging portion that locks the lower portion when the front panel 3 is closed, 9 is an engaging claw provided on the engaging portion 8 of the front panel 3, 10 Is a locking part and is provided with an arm 10a integrally.
[0003]
Next, the operation will be described. The front panel 3 is connected to the front case 2 by a shaft 7 and is opened and closed by rotation about the shaft 7, and when closed, the lower portion is locked by a plurality of engaging portions 8 at the left, right, or center. The indoor unit main body 1 includes a rear case 4, a front case 2, and a front panel 3 that can be opened and closed. A front panel locking part 10 is fixed to the front case 2 by engaging claws 9 formed on the front case 2. The The front panel 3 rotates about the shaft 7 and opens and closes in the front direction of the front case 2. When the front end of the arm 10a of the front panel 3 is moved over the front end of the engaging claw 9 of the front panel 3, the arm 10a is elastically deformed, and the arm 10a is opened and closed. As a result, the front panel 3 is sandwiched between the arms 10a. Locked.
[0004]
[Problems to be solved by the invention]
The panel opening and closing device of the conventional air conditioner is configured as described above, and when closed, the lower part is locked at a plurality of locations and the upper part is held by a shaft, so that the upper part is a connection part. If the shaft and end surface or the distance between the shaft and the shaft are separated, a gap A is generated at the upper joint of the front case and the front panel due to warpage during molding of the front panel, as shown in FIG. There was a problem of worsening.
[0005]
Further, when the front panel is opened and closed, the arm of the locking part is opened and closed, and the stress generated by opening and closing the arm is concentrated on the arm.
[0006]
In addition, when the front panel is opened or closed due to variations in the dimensions of each part or due to the fitting of various parts, etc., when the misalignment between the front panel engaging claws and the locking parts fixed to the front case occurs. The engaging claw is not inserted into the center of the locking part, and a biased load is applied to the arm of the locking part, causing problems such as breakage of the locking part during the front panel opening / closing operation.
[0007]
The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a suction grill holding device that can prevent the appearance from deteriorating.
[0008]
Another object of the present invention is to alleviate the stress concentration of the locking parts, and to minimize the influence of the positional displacement between the engaging claws of the front panel and the locking parts fixed to the front case.
[0009]
[Means for Solving the Problems]
The panel opening / closing device for an air conditioner according to the present invention is attached to a front panel that can be opened / closed in an indoor unit so that there is a gap in the direction in which the arm of the locking part widens, and a pair of arms on one side The other is provided with a triangular thick wall portion as a fulcrum for displacement, and a locking part is formed with a thin wall thickness in the middle portion thereof.
[0013]
Moreover, the panel opening / closing device of the air conditioner according to the present invention is such that the engaging parts are arranged in the vertical direction with respect to the direction in which the arms of the engaging parts spread by the engaging claws of the front panel that can be opened and closed.
[0014]
Further, the panel opening and closing device of the air conditioner according to the present invention has a rail that can slide in the direction in which the arm of the locking part spreads or a correction rib in the vertical direction thereof, and a gap in the vertical direction with respect to the direction in which the arm spreads. Is a correction.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
A panel opening / closing device for an air conditioner according to Embodiment 1 of the present invention will be described below with reference to the drawings. In the figure, 1 is an indoor unit body of an air conditioner, 2 is a front case of the indoor unit, 3 is a front panel that can be opened and closed to cover the front surface of the front case, and 4 is a rear case of the indoor unit. 4, the front case 2, and the front panel 3 that can be opened and closed constitute the indoor unit main body. Reference numeral 5a denotes a stopper A that has a wedge shape with respect to a circle centered on the axis of the front panel 3, and is provided in the vicinity of the left and right end surfaces of the front panel 3 or inside the center. Reference numeral 6 denotes a receiving portion provided in the front case 2, and 7 denotes an axis that is the opening / closing center of the front panel 3.
[0017]
Next, the operation of the first embodiment will be described. As shown in FIG. 3, when the front panel 3 is closed, the stopper A 5 a of the front panel 3 passes through a rotation path centered on the shaft 7 and is fitted to the receiving portion 6 of the front case 2. At this time, since the stopper A5a of the front panel 3 has a wedge shape with respect to the track rotating around the axis 7 of the front case 2, even if the front panel 3 is warped, the front panel 3 remains in the front case 2. Be drawn into.
[0018]
Embodiment 2. FIG.
FIG. 4 shows a panel opening / closing device for an air conditioner according to Embodiment 2 of the present invention. In the drawing, the stopper B5b of the front panel 3 is formed longer in the arc direction than in Embodiment 1, Even when the panel 3 is open, the stopper B5b of the front panel 3 is fitted to the receiving portion 6 of the front case 2.
[0019]
Thus, even when the stopper B5b of the front panel 3 is long in the turning direction and the front panel 3 is open, the stopper B5b of the front panel 3 is fitted to the receiving portion 6 of the front case 2. The front panel 3 does not shift from side to side.
[0020]
In the case of an electrical product to be recycled, the front panel can be prevented from opening and being damaged during the transportation of the product.
[0021]
Embodiment 3 FIG.
5 is a side sectional view of a principal part of a panel opening / closing device for an air conditioner according to Embodiment 3 of the present invention, and FIG. 6 is a plan sectional view of the principal part. In FIG. An engaging claw provided at the lower part of the panel projects inward of the panel to form an arrowhead-shaped tip 9a. Reference numeral 10 denotes a locking part provided with a pair of arms 10a for locking the engaging claws 9 of the front panel. Triangles are formed at the tips toward the inside so as to hold the arrowhead-shaped tip portions 9a of the engaging claws 9. The arm is provided with a claw piece 10b, and a head 10c that supports the arm at the other end. This head has a thin portion 10d at the center opposite to the arm 10a side and a triangular thick portion 10e around it. Reference numeral 11 denotes an engagement storage portion having a width A formed in the lower part of the front case 2 for storing the locking component. A holding claw 11b is formed to project at a middle position of the vertical width A of the side wall 11a. Is held with a gap B between the upper and lower walls 11c. Reference numeral 12 denotes a correction rib provided on the back side of the side wall 11a of the engagement storage part 11.
[0022]
Next, the operation of the third embodiment will be described. When the front panel 3 is closed, the engaging claws 9 of the front panel 3 are inserted and engaged between the arms 10 a of the locking component 10. In the inserting operation, the arrow claw-shaped tip 9a of the engaging claw 9 is inserted in contact with the triangular claw piece 10b at the tip of the arm, and the engaging claw 9 is fixed so as to be substantially aligned with the center of the locking component 10.
[0023]
In addition, when the arrowhead-shaped tip 9a of the engaging claw 9 is inserted in contact with the triangular claw piece 10b at the tip of the arm during the insertion operation, the arm 10a of the locking part 10 is pushed and spread simultaneously. The thin-walled portion 10d of 10c is elastically deformed, and the arm 10a opens or closes up and down.
[0024]
When the closed front panel 3 is opened, the operation relationship between the engaging claw 9 and the locking component 10 is a relationship that operates in the reverse procedure.
[0025]
Further, even when the front panel 3 is opened or closed, even if the engaging claw 9 of the front panel 3 and the locking component 10 are misaligned due to the dimensional variation of each component or the variation due to the engagement between the components, etc. Misalignment can be absorbed and suppressed by the gap B and the correction rib 12 so that the locking part 10 is prevented from being damaged and the engaging claws 9 are correctly inserted.
[0026]
Further, although the front case 2 and the locking part 10 are separate parts, it is possible to eliminate the separation work at the time of recycling by using the same resin material.
[0027]
Embodiment 4 FIG.
FIG. 7 is a side sectional view of a principal part of a panel opening / closing device for an air conditioner according to Embodiment 4 of the present invention, and a plan sectional view of a principal part of FIG. 8. In FIG. The ribs A and 14 provided in the center in the vertical direction are grooves provided in the vertical direction in the head portion 10a of the locking part 10 so as to be fitted to the rib A.
[0028]
As a result, the locking component 10 is disposed substantially at the center without being biased to the left or right of the engagement storage portion 11.
[0029]
Embodiment 5 FIG.
FIG. 9 is a side view showing a partially cutaway section of the panel opening / closing device of the air conditioner according to the fifth embodiment. When the front panel 3 is closed so as to be in close contact with the front case 2, the stopper 5 has a wedge-shaped portion. Thus, the engaging claw 9 is inserted and arranged along the triangular claw 10b at the tip of the arm 10a while the arrow-tip-shaped tip 9a of the engaging claw 9 is in contact with the receiving portion 6 of the front case 2.
[0030]
Next, the operation will be described. When the front panel 3 is opened and closed, the stopper engages with the front case 2, so that the stopper regulates the rotation of the front panel 3 around the front case 2 and the shaft 7 in the rotational direction. The vertical displacement of the front panel 3 with respect to 2 is regulated.
[0031]
Further, when the front panel 3 is closed, even if the latching component 10 and the front panel 3 are displaced in the vertical direction, the misalignment is absorbed by the gap B, and the arm 11d securely The engaging claw 9 is held.
[0032]
FIG. 9 shows a case where the configurations shown in the first, second, third and fourth embodiments are used together, and positioning of the front panel 3 in the opening direction when the front panel 3 is opened and closed, In the positioning when the panel 3 is closed, the right and left deviation prevention and the vertical deviation absorption with respect to the front case 2 are performed.
[0033]
【The invention's effect】
The panel opening / closing device of the air conditioner according to the present invention is attached to the front panel locking part of the indoor unit that can be opened and closed, with a gap in the direction in which the arms of the locking part spread, and a pair of arms on one side. The other is provided with a triangular thick part as a fulcrum of displacement, and the locking part is formed with a thin wall thickness of the middle part thereof, so the stress concentration of the locking part can be relaxed, Even when the front panel locking claws and the locking parts fixed to the front case are misaligned due to dimensional variations of parts or variations due to fitting of various parts, etc. There is an effect that it is possible to suppress the uneven load on the locking parts or the variation in the locking force at the time of opening and closing the front panel.
[0037]
Since the panel opening / closing device of the air conditioner according to the present invention is configured to be arranged in a direction perpendicular to the direction in which the arm of the locking part is widened by the engaging claws of the front panel that can be opened and closed, the mounting part for the locking part Due to this gap, the locking claw has the effect of pulling the locking part toward the center and reducing variations during front panel opening and closing operations.
[0038]
The panel opening and closing device for an air conditioner according to the present invention also includes a rail that can slide in the direction in which the arm of the locking part spreads, or a correction rib in the vertical direction thereof, and a gap in the direction perpendicular to the direction in which the arm spreads. As the structure is corrected, the vertical movement of the locking part is performed smoothly without changing the mounting direction of the locking part, and it is difficult to apply a load other than the opening / closing direction to the arm of the locking part. It has the effect.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an appearance of a panel opening / closing device of an air conditioner according to Embodiment 1 of the present invention.
FIG. 2 is a perspective view showing a main part of a panel opening / closing device for an air conditioner according to Embodiment 1 of the present invention;
FIG. 3 is an enlarged cross-sectional view showing a main part of the panel opening / closing device of the air conditioner according to Embodiment 1 of the present invention;
FIG. 4 is an enlarged cross-sectional view showing a main part of a panel opening / closing device for an air conditioner according to Embodiment 2 of the present invention;
FIG. 5 is an enlarged side sectional view showing a main part of a panel opening / closing device for an air conditioner according to Embodiment 3 of the present invention;
FIG. 6 is an enlarged plan sectional view showing a main part of a panel opening / closing device for an air conditioner according to Embodiment 3 of the present invention;
FIG. 7 is an enlarged side sectional view showing a main part of a panel opening / closing device for an air conditioner according to Embodiment 4 of the present invention;
FIG. 8 is an enlarged plan sectional view showing a main part of a panel opening / closing device for an air conditioner according to Embodiment 4 of the present invention;
FIG. 9 is a side view showing a panel opening / closing device of an air conditioner according to Embodiment 5 of the present invention with a part cut away.
FIG. 10 is a perspective view showing an external appearance of a panel opening / closing device of a conventional air conditioner.
FIG. 11 is a side view showing a panel opening / closing device of a conventional air conditioner with a part cut away.
FIG. 12 is an enlarged perspective view showing a panel opening / closing device of a conventional air conditioner.
FIG. 13 is an enlarged cross-sectional view showing a main part relationship of a panel opening / closing device of a conventional air conditioner.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Air conditioner main body, 2 Front case, 3 Front panel, 5a Stopper A, 5b Stopper B, 6 Receiving part, 7 axis | shaft, 8 Engagement part, 9 Engagement claw, 10 Locking part, 10a arm, 10d Thin part 10e Triangular thick part, 11d gap B, 11e Front wall, 12 Straightening rib, 13 Rib A, 14 Groove.

Claims (3)

A front panel locking part that can be opened and closed of the indoor unit, and is attached with a gap in the direction in which the arm of the locking part spreads, a pair of arms on one side, and a triangular thick part on the other A panel opening and closing device for an air conditioner, characterized in that a locking part is formed with a thin wall thickness at an intermediate portion thereof as a fulcrum of installation displacement. The nail engagement openable front panel, to the direction in which the arms spread the fastening elements, the panel opening and closing apparatus of an air conditioner according to claim 1, characterized in that a locking component in the vertical direction. Fastening elements arm arranged a slidable rail or straightening ribs in its direction perpendicular to the spreading direction of the air-conditioning according to claim 1, characterized in that correcting the gap in the direction perpendicular to the direction in which the arms spread Panel opening / closing device of the machine.

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