JP6817846B2 - Air conditioner - Google Patents

Description

The present invention relates to an air conditioner.

In an indoor unit of an air conditioner, the outer shell is formed by a housing base and a cover, and the main parts such as a heat exchanger, a once-through fan, a fan motor, and an electrical component box are provided inside the outer shell, and members for fixing them are provided. ing. As a method of fixing each part, various methods such as fixing with a screw (screw) and engaging and fixing a claw provided on the part are adopted.

Patent Document 1 describes that "in the mounting structure of the fan motor and the bearing, the fan motor and the bearing can be held by the cabinet alone by providing the cabinet with a stopper for preventing the fall".

Patent Document 2 states, "In the mounting structure of the electrical component box housed in the housing of the air conditioner, the lower wall of the housing is provided with an immovable claw that engages with a recess provided on the lower surface of the electrical component box. The upper wall of the housing is provided with elastic claws that reversely engage with the protrusions provided on the upper surface of the electrical component box, and the electrical component box is fixed to the housing by engaging these claws. " ing.

Japanese Unexamined Patent Publication No. 8-178339 Japanese Unexamined Patent Publication No. 11-173598

As in Patent Document 1, holding a part by providing a stopper is a useful means without requiring a fixing member such as a screw or a cover. These can be used not only for holding fan motors and bearings, but also for structures for attaching other parts. For example, as a method of fixing the electrical component box to the housing base, in addition to fixing with screws, a method of engaging and fixing with a hook portion or a claw as in Patent Document 2 is used.

By adopting a mounting structure that uses a stopper to fix the electrical component box, it is possible to reduce the number of parts and work man-hours without the need for screws. In the structure shown in Patent Document 1, the fan motors and bearings provided on both sides of the once-through fan are held by stoppers, but the stoppers are used to attach the fan motors and bearings from the front of the indoor unit. It is possible to suppress the movement to the front side when looking at it. In addition, the cabinet suppresses the movement of the indoor unit to the back side and the top and bottom sides of the indoor unit.

However, in the left-right direction of the indoor unit, which is the axial direction of the fan motor, the movement is suppressed by the structure provided with both the fan motor and the bearing. When used for the fixed part of, the movement cannot be suppressed. Therefore, when fixing with only one component, it is necessary to fix and hold in each direction so that the component does not move even if a force is applied from any direction.

Therefore, the present invention is an invention for solving the above-mentioned problems, and is an air conditioner provided with a mounting structure capable of suppressing movement in any direction and fixing and holding parts. The purpose is to provide.

In order to achieve the above object, the air conditioner of the present invention has a boss portion provided on the housing, a housing portion capable of accommodating the boss portion (for example, a front surface 102a, an upper surface 102b, a lower surface 102c, a back surface 102d, and a right side surface. The space surrounded by 102e has a mounting component (for example, an electrical component box 7) having an engaging member provided inside, and the engaging member has a convex portion (for example, an elastic rib) at the entrance of the accommodating portion. 102f), the outer surface of the boss portion is locked by the convex portion. Other aspects of the present invention will be described in embodiments described below.

According to the present invention, it is possible to suppress the movement in any direction and fix and hold the parts.

It is a block diagram which shows the indoor unit of the air conditioner which concerns on embodiment. It is a perspective view which shows the appearance of the electrical component box attached to the housing base shown in FIG. It is a side view which shows the electrical component box attached to the housing base shown in FIG. 1, (a) is a left side view, (b) is a right side view. It is explanatory drawing which shows the internal structure of an electrical component box. It is explanatory drawing which shows the mounting method of the housing base and the electrical component box shown in FIG. It is a schematic side view which shows the engaging member of the housing base and an electrical component box shown in FIG. FIG. 6 is a cross-sectional view taken along the line AA shown in FIG. It is a mounting photograph which shows the engaging state of a boss part and an engaging member. It is a schematic side view which shows another example of a boss part and an engaging member.

Embodiments for carrying out the present invention will be described in detail with reference to the drawings as appropriate.
FIG. 1 is a configuration diagram showing an indoor unit 1 of the air conditioner according to the embodiment. In FIG. 1, for convenience of explanation, the air blowing side will be described as the front. The indoor unit 1 includes a housing base 2 and a housing cover 3, and forms an outer shell of the indoor unit 1. Further, inside the heat exchanger 4, a once-through fan 5, a fan motor 6, and an electrical component box 7 are provided. The housing cover 3 is fixed to the housing base 2 by the screw portion 8. Here, an electrical component box 7 will be described as an example of an attachment component to the housing base 2. The electrical component box 7 is arranged at the right end of the housing base 2. Ease of disposition is required when the electrical component box 7 is attached, and moreover, ease of maintenance during maintenance is also required. Therefore, when the cover on the right side of the electrical component box 7 is removed, the control board is arranged at a position where it can be seen.

FIG. 2 is a perspective view showing the appearance of the electrical component box 7 attached to the housing base 2 shown in FIG. 3A and 3B are side views showing an electrical component box 7 attached to the housing base 2 shown in FIG. 1, where FIG. 3A is a left side view and FIG. 3B is a right side view. FIG. 4 is an explanatory diagram showing the internal configuration of the electrical component box 7.

In FIG. 2, the electrical component box 7 is provided with an iron plate box 7a and a lid 7e on the outer shell thereof to prevent the spread of fire, and a terminal block 7b for attaching a connection line to an outdoor unit (not shown here). In addition, a substrate support 7c, which is a resin molded product, is provided for attaching a control substrate to be housed inside the electrical component box 7. The board support 7c is provided with an engaging member 102 for attaching to the boss portion 101 (engaging receiving portion, see FIG. 5) provided on the housing base 2 (see FIG. 1). Further, a locking portion 7d for hooking on the housing base 2 is provided behind the upper part of the electrical component box 7.

In the left side view of FIG. 3A, the engaging member 102 is provided at the lower end of the substrate support 7c. In FIG. 3A, the front side of the engaging member 102 is an opening surface 103 (see FIG. 5), which is an open surface for inserting the boss portion 101 (see FIG. 5), and the surface thereof. The surfaces other than the above have a structure including a front surface 102a, an upper surface 102b, a lower surface 102c, a back surface 102d, and a right side surface 102e which is the inner side of FIG. 3A. The engaging member 102 is provided with an accommodating portion (for example, a space surrounded by a front surface 102a, an upper surface 102b, a lower surface 102c, a back surface 102d, and a right side surface 102e) capable of accommodating the boss portion 101. The back surface 102d is inclined in the vertical direction as a part of the substrate support 7c to form a slope, and serves as a stopping member for preventing the boss portion 101 from moving backward.

In the right side view of FIG. 3B, a plurality of openings 102h are provided in a part of the right side surface 102e. The opening 102h improves the elasticity of the engaging member 102 and is used as a maintenance opening used when removing the electrical component box 7.

The right side view shown in FIG. 4 shows a state in which the lid of the electrical component box 7 is opened. It can be seen that the substrate support 7c is made of an integrally molded resin including the engaging member 102. The maintenance worker can see the electrical component box 7 from the right side by removing the housing cover 3 shown in FIG. 1, and can see the internal control board with the lid of the electrical component box 7 open. it can.

Next, a method of attaching the electrical component box 7 will be described with reference to FIGS. 5 to 7.
FIG. 5 is an explanatory view showing a method of attaching the housing base 2 and the electrical component box 7 shown in FIG. FIG. 5 is a diagram showing a state immediately before the electrical component box 7 is attached to the housing base 2, and is fixed by moving in the direction of the arrow in the figure. The housing base 2 is a resin molded product, and is provided with a boss portion 101 for attaching the electrical component box 7 to a part thereof.

FIG. 6 is a schematic side view showing an engaging member between the housing base 2 and the electrical component box 7 shown in FIG. FIG. 3 shows the periphery of the engaging member 102 when the indoor unit 1 is viewed from the left side surface. As described above, the front side of the drawing of FIG. 6 is an opening surface 103 (see FIG. 5) which is an open surface for fixing to the boss portion 101, and the surfaces other than the surface are the front surface 102a and the upper surface 102b. , The lower surface 102c, the back surface 102d, and the right side surface 102e (see FIG. 7) on the back side of FIG.

With the engaging member 102, the front surface 102a, the upper surface 102b, the lower surface 102c, the back surface 102d, and the right side surface 102e restrict the movement of the surface other than the opening surface 103 (see FIG. 5), and the opening surface 103 is provided. It can move only in the direction, and the boss portion 101 and the engaging member 102 can be attached and detached.

Next, in the case of the above structure, it is possible to move to the opening surface 103 side, but the boss portion 101 and the engaging member 102 are easily disengaged by simply opening the opening. Therefore, by providing elastic ribs 102f on any one or a plurality of the front surface 102a, the upper surface 102b, the lower surface 102c, and the back surface 102d orthogonal to the opening surface 103 of the engaging member 102, it is difficult to easily disengage from the opening surface 103 side. However, it can be attached and detached arbitrarily.

FIG. 7 is a cross-sectional view AA indicated in FIG. 6 and is a diagram showing an elastic rib 102f. The elastic ribs 102f are provided on one or more of the front surface 102a (see FIG. 6), the upper surface 102b, the lower surface 102c, and the back surface 102d (see FIG. 6), and the installation position thereof is not limited, but the opening surface 103 (see FIG. 6). By installing it near the end surface of (see 5) (near the insertion entrance of the boss portion 101) and near the center of the inside of the surface (for example, the upper surface 102b and the lower surface 102c) forming the engaging member 102. It is possible to obtain a more elastic effect (see FIGS. 5 and 6).

FIG. 8 is a mounting photograph showing an engaged state between the boss portion 101 and the engaging member 102. The boss portion 101 is housed inside the engaging member 102 (accommodated in the accommodating portion), and the outer surface of the boss portion 101 is made convex by the elastic rib 102f which is a convex portion at the entrance of the accommodating portion of the engaging member 102. It can be seen that the lock is securely locked.

In this embodiment, a substantially circular shape is used for the boss portion 101, but this is for smoother attachment / detachment of the boss portion 101 and the engaging member 102, and the shape of the boss portion 101 is limited. It's not something to do. For example, a square shape may be used as a base, and fillets (shapes with rounded corners) may be provided at the four corners thereof. In this case, as shown in FIG. 7, it is desirable that the relationship between the radius of the fillet (chamfering radius) and the hanging dimension H of the elastic rib 102f is such that the radius R of the fillet> the hanging dimension H.

In the present embodiment, in the electrical component box 7, as described above, the work of attaching the connection line to the outdoor unit to the terminal block 7b and the fan motor 6 (on the control board housed inside the electrical component box 7) It is necessary to connect the electric wires such as (see FIG. 1), and a force is applied to the work direction. On the other hand, by aligning the fixing directions of the boss portion 101 and the engaging member 102, it is possible to fix and hold each component.

More specifically, in the structure of the present embodiment, the terminal block 7b is arranged so as to face the front of the indoor unit 1 (see FIG. 1), and the electric wire provided in the lower part of the terminal block 7b is provided for the workability of the connection line. It is tilted so that the insertion part comes out to the front. Therefore, in the connection work to the terminal block 7b, a force is applied in the vertical direction and the front-rear direction when viewed from the front of the indoor unit.

On the other hand, when the electric wire such as the fan motor 6 shown in FIG. 1 is connected to the control board inside the electrical component box 7, the work is performed from the right side of the indoor unit 1, so that the left and right sides are viewed from the front of the indoor unit 1. A force will be applied in the direction.

The work that exerts a force on the electrical component box 7 is mainly the above work, but the work of connecting to the terminal block 7b mentioned above is the work that exerts the most force. On the other hand, in the vertical direction and the front-rear direction applied in the connection work to the terminal block 7b shown in FIG. 2, the front surface 102a, the upper surface 102b, the lower surface 102c, the back surface 102d and the right side surface 102e provided on the engaging member 102 are aligned. By arranging in such a manner, it is possible to securely fix and hold even when a large force is applied.

Further, the force applied in the left-right direction by connecting an electric wire such as a fan motor 6 (see FIG. 1) is very small with respect to the force applied to the terminal block 7b described above. Therefore, by arranging the engaging member 102 on the opening surface 103 side, that is, the elastic rib 102f (see FIG. 7) together, it is possible to fix and hold the component for any work.

In the present embodiment shown in FIG. 5, a mounting structure is formed by a boss portion 101 and an engaging member 102, but by providing a screw hole 101a and a screw opening 102g in each, fixing by a screw is also possible. Can be. In this case, a screw for fixing is added, but since the housing cover 3 shown in FIG. 1 needs to be fixed by the screw 8 after being attached to the housing base 2, the screw 8 is used. , The number of parts is increased by consistently fixing the screw hole 101a provided in the boss portion 101 and the screw opening 102g provided in the engaging member 102 with the screw 8 together with the housing cover 3. It can be fixed without any problem (see FIG. 5). That is, a configuration that does not use a dedicated screw, which is one of the effects of the present invention, becomes possible.

As described above, as shown in FIG. 5, the air conditioner of the present embodiment includes a boss portion 101 on the housing base 2 and an engaging member 102 on the electrical component box 7, and the engaging member 102 has one surface thereof. As shown in FIGS. 6 and 7, the other surfaces are provided with a front surface 102a, an upper surface 102b, a lower surface 102c, a back surface 102d, and a right side surface 102e, and any one of the front surface 102a, the upper surface 102b, the lower surface 102c, and the back surface 102d. Is provided with an elastic rib 102f.

The front surface 102a, the upper surface 102b, the lower surface 102c, the back surface 102d, the right side surface 102e, and the elastic rib 102f enable a structure in which the boss portion 101 and the engaging member 102 can be fixed and held without the need for special fixing parts. Become.

Further, as shown in FIG. 5, a screw hole 101a is provided in the boss portion 101, and a screw opening 102g is provided in the engaging member 102, and a screw 8 (see FIG. 1) for fixing the housing cover 3 is shared. By screwing, a suitable mounting structure can be achieved without adding special fixing parts.

The air conditioner of the present embodiment has a mounting structure for fixing parts inside the air conditioner, and has a boss portion 101 as a fixing base on one side and an engaging member 102 that engages with the boss portion 101 on the other side. To be equipped. In the engaging member 102, only one direction in which the boss portion 101 is attached is opened, and in all or a part thereof, a stationary wall (for example, front surface 102a, upper surface 102b, lower surface 102c, back surface 102d) is opened in the other direction. , Right side surface 102e) is provided, and has a structure that can be moved only in one open direction. Further, by providing an elastic rib 102f (see FIGS. 6 and 7) which is a convex portion in a part of the stationary wall in one direction of opening, the movement in the opening direction is restricted and it can be easily removed. It has a structure that cannot be used. According to this embodiment, it is possible to fix and hold a part whose movement is suppressed in any direction.

The present invention is not limited to the above-described embodiment, and includes various modifications. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to those having all the described configurations.

FIG. 9 is a schematic side view showing another example of the boss portion 101A and the engaging member 102A. In FIG. 6, the back surface 102d is inclined with respect to the vertical direction, but the present invention is not limited to this. The engaging member 102A may face the front surface 102a with the back surface 102dA in the vertical direction as compared with the engaging member 102. That is, the engaging member 102A has a rectangular parallelepiped shape having an opening surface 103. That is, the rectangular parallelepiped is formed by the front surface 102a, the upper surface 102b, the lower surface 102c, the back surface 102dA, and the right side surface 102e. In the present embodiment, when the engaging member 102 of a substantially rectangular parallelepiped is referred to, FIGS. 6 and 9 are included.

In the present embodiment, the electrical component box 7 of the indoor unit 1 has been described as an attachment component in FIG. 1, but the electrical component box of the outdoor unit, the sensors of the indoor unit / outdoor unit (for example, the imaging unit and the temperature detection unit), The mounting structure of the present embodiment may be applied to the air conditioner control terminal (remote controller).

1 Indoor unit 2 Housing base (housing)
3 Housing cover 4 Heat exchanger 5 Recirculation fan 6 Fan motor 7 Electrical equipment box 7a Box body 7b Terminal block 7c Board support 7d Locking part 7e Lid part 8 Screw 101 Boss part (engagement receiving part)
101a Screw hole 102 Engagement member 102a Front surface 102b Top surface 102c Bottom surface 102d Back surface 102e Right side surface 102f Elastic rib (convex part)
102g Screw opening 102h Opening 103 Opening surface

Claims (8)

The boss part provided on the housing and
The accommodating portion capable of accommodating the boss portion has a mounting component having an engaging member provided inside.
The engaging member has a convex portion at the entrance of the housing portion and has a convex portion.
An air conditioner characterized in that the outer surface of the boss portion is locked by the convex portion. The boss portion has a screw hole
The engaging member has an opening for a screw and has an opening.
The air conditioner according to claim 1, wherein the mounting screw for attaching the housing cover that covers the housing is fixed to the screw hole through the screw opening. The air conditioner according to claim 1, wherein the engaging member is made of an elastic material. The air conditioner according to claim 1, wherein the engaging member has a substantially rectangular parallelepiped shape having an opening surface into which the boss portion is inserted. The air conditioner according to claim 4, wherein an opening is provided on a surface facing the opening surface. The air conditioner according to claim 4, wherein each of the facing surfaces adjacent to the opening surface has the convex portion. The air conditioner according to claim 1, wherein the engaging member is made of a resin. The air conditioner according to claim 1, wherein the mounting component is an electrical component box.