JP7183109B2 - Ventilator vanity grille and ventilator - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative grille of a ventilation system and a ventilation system for ventilating a room by taking in air in the room and sending out the taken-in air to a duct.

Conventionally, a main body provided with a suction port for sucking indoor air and an exhaust port for sending out the taken air to a duct, and a decorative grill provided on the indoor side of the main body, and attached to the main body Ventilation devices are known that use springs to support a decorative grille.

Patent Document 1 discloses a ventilator that uses a spring to support a decorative grille. It is disclosed to attach the springs to the decorative grille by piercing. In the decorative grille disclosed in Patent Document 1, one of the two walls, from which the tip of the fixing pin protrudes, is provided with a rib that regulates the inclination of the fixing pin. According to the technique disclosed in Patent Document 1, when the wall through which the fixing pin is passed is damaged, the fall of the spring due to the inclination of the fixing pin is prevented, thereby preventing the decorative grille from falling off.

Japanese Patent No. 4937627

However, in the decorative grille disclosed in Patent Literature 1, when the supporting portion of the fixing pin is damaged due to deterioration or the like, the coil spring falls off from the decorative grille. Therefore, according to the technique of Patent Document 1, there is a problem that it may be difficult to prevent the decorative grille from falling.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a decorative grille for a ventilator that can prevent the decorative grille from falling off from the main body of the ventilator.

In order to solve the above-described problems and achieve the object, a decorative grille for a ventilation device according to the present invention has a main body provided with an intake port for sucking indoor air and an exhaust port for sending air to a duct. It is the decorative grill of the device. The decorative grille of the ventilation device according to the present invention comprises a frame surrounding an area through which air sucked into the suction port passes, and a panel attached to the frame on the side opposite to the main body side and connected to the frame. , a support part that is attached to the main body to support the decorative grille, a support part fixing part that fixes the support part to the panel, and a support part that is arranged between the frame and the panel and is attached to the support part. a structure; The structure has an elongated shape that is longer than the width of the area surrounded by the frame.

ADVANTAGE OF THE INVENTION According to this invention, the decorative grill of a ventilator produces the effect that it can prevent the decorative grill from falling off from the main-body part of a ventilator.

BRIEF DESCRIPTION OF THE DRAWINGS Sectional drawing which shows the example of installation of the ventilation apparatus concerning Embodiment 1 of this invention. FIG. 2 is a bottom view of the ventilation device shown in FIG. 1 with the decorative grille removed; Bottom view showing the ventilator with the terminal cover opened from the state shown in FIG. Sectional view of a decorative grill provided in the ventilation system shown in FIG. FIG. 5 is a perspective view showing a portion of the decorative grille shown in FIG. 4 where springs are provided; 5 is a cross-sectional view showing a portion where the panel and the concealing frame provided in the decorative grille shown in FIG. 4 are fitted together; FIG. The perspective view which shows the state by which the rectification|straightening component is attached to the decorative grill shown in FIG. FIG. 5 is a perspective view of a decorative grill for explaining a state in which the decorative grill shown in FIG. 4 is damaged; FIG. 5 is a cross-sectional view of a ventilation device for explaining a state in which the decorative grill shown in FIG. 4 is damaged;

A decorative grille of a ventilation device and a ventilation device according to embodiments of the present invention will be described in detail below with reference to the drawings. In addition, this invention is not limited by this embodiment.

Embodiment 1.
FIG. 1 is a cross-sectional view showing an installation example of a ventilation device according to Embodiment 1 of the present invention. FIG. 2 is a bottom view of the ventilator shown in FIG. 1 with the decorative grille removed. 3 is a bottom view of the ventilator with the terminal cover opened from the state shown in FIG. 2. FIG. The ventilator 100 is a duct ventilator that ventilates the room by sending air taken from the room into a duct. The duct is arranged to connect the space above the ceiling and the outdoors.

The ventilator 100 has a blower 1 that generates an air flow, a body case 2 that houses the blower 1, and a decorative grille 12. - 特許庁The blower 1 has a motor 3 which is a driving source, a fan 4 which receives power from the motor 3 and rotates, and a fan casing 6 which accommodates the fan 4 . The motor 3 and the fan casing 6 are fixed to the top surface 28 of the main body case 2 . The side of the fan casing 6 directed toward the room is provided with a suction port 5 for sucking the air in the room. The suction port 5 forms a bell mouth whose inner diameter increases toward the interior side. Spring fixing portions 7 to which springs 13 are fixed are provided at two locations at the lower end of the suction port 5 .

The main body case 2 is a rectangular parallelepiped box with an open bottom. An open end of the body case 2 is provided with a flange 2a. The duct connecting portion 8 is provided on one side surface of the body case 2 . The duct connection portion 8 connects the main body case 2 and the duct 14 . An exhaust port 10 for sending out air to a duct 14 is provided at an end portion of the duct connection portion 8 on the side opposite to the main body case 2 side. The blower 1 , the body case 2 , and the duct connection portion 8 constitute a body portion of the ventilator 100 .

Inside the main body case 2 , outside the fan casing 6 , a wire connection device 20 for supplying electric power to the motor 3 and a terminal cover 11 for opening and closing a space in which the wire connection device 20 is accommodated are provided. The wire connection device 20 and the motor 3 are electrically connected via a motor wire. The space in which the wire connecting device 20 is housed is isolated from the air path by closing the terminal cover 11 . This prevents dust and moisture from entering the space in which the wire connection device 20 is accommodated. Electric power supplied from the external power supply to the wire connection device 20 through the external power supply wire is supplied to the motor 3 through the motor wire. The motor 3 rotates the fan 4 by being supplied with electric power.

The duct connecting portion 8 has an outer shape with a stepped diameter. By varying the diameter stepwise, the duct connection portion 8 can be connected to a plurality of types of ducts 14 having different inner diameters. Also, by varying the diameter stepwise, the duct connection portion 8 can improve workability such as taping.

A shutter 9 is provided in the duct connection portion 8 to open and close by wind pressure. When the ventilator 100 is in operation, the shutter 9 opens the inside of the duct connection portion 8 by receiving wind pressure. When the ventilator 100 stops operating, the shutter 9 closes the inside of the duct connection portion 8 by its own weight. The provision of the shutter 9 prevents wind from entering the room from the outdoors through the duct 14 when the ventilation device 100 is not in operation. The duct 14 is connected to a hood or the like provided on the outer wall of the building. The duct 14 constitutes a ventilation air passage for ventilating the room.

An opening 26 is provided in the ceiling material 25 in which the ventilation device 100 is installed. The main body is inserted into the ceiling space through the opening 26 . The main body is installed in the ceiling space of the building with the open lower end of the main body case 2 inserted into the opening 26 . A screw is passed through each of the plurality of holes 27 provided in the flange 2a. The main body is fixed to the ceiling material 25 by screwing the screws through the holes 27 into the ceiling material 25 .

As the fan 4 rotates, indoor air is sucked into the fan casing 6 through the suction port 5 . Air sucked into the fan casing 6 flows along the air path between the inner wall of the fan casing 6 and the fan 4 and is sent to the duct connection portion 8 . The air sent to the duct connection portion 8 is discharged from the exhaust port 10 to the duct 14 .

The decorative grill 12 closes the opening 26 of the ceiling material 25 from the room. Decorative grill 12 has two springs 13 . The spring 13 is a support component that is attached to the spring fixing portion 7 and supports the decorative grille 12 . The decorative grille 12 is supported in a state of being suspended from the main body by hooking two tips of the springs 13 on the spring fixing portions 7 .

4 is a cross-sectional view of a decorative grill provided in the ventilator shown in FIG. 1. FIG. 5 is a perspective view showing a portion of the decorative grille shown in FIG. 4 where springs are provided. FIG. 6 is a cross-sectional view showing a portion where a panel and a concealing frame provided in the decorative grille shown in FIG. 4 are fitted together; FIG. 7 is a perspective view showing a state in which a rectifying component is attached to the decorative grille shown in FIG. 4. FIG. FIG. 8 is a perspective view of the decorative grill for explaining a state in which the decorative grill shown in FIG. 4 is damaged. FIG. 9 is a cross-sectional view of the ventilator for explaining a state in which the decorative grill shown in FIG. 4 is damaged.

The decorative grill 12 has a concealing frame 15, a panel 16 attached to the concealing frame 15, and a reinforcing material 17 for reinforcing the panel 16. - 特許庁The panel 16 is attached to the side of the concealing frame 15 opposite to the main body side. A surface of the panel 16 facing downward is a design surface on which a design is applied.

The shielding frame 15 is a frame surrounding the area through which the air sucked into the suction port 5 passes. The concealing frame 15 covers the lower portion of the flange 2a. A columnar fitting portion 19 is provided at each of the four corners on the lower surface of the concealing frame 15 . Each of the four corners on the upper surface of the panel 16 is provided with a claw portion 19 a that can be fitted into the fitting portion 19 . As shown in FIG. 6 , the claw portion 19 a is inserted from the lower end of the fitting portion 19 , and the claw portion 19 a is fitted to the fitting portion 19 . The panel 16 is attached to the concealing frame 15 by fitting each of the four claw portions 19 a into the fitting portion 19 .

The reinforcing member 17 is a plate member having an elongated shape that is longer than the width of the area surrounded by the concealing frame 15 . The reinforcing member 17 is arranged on the surface of the panel 16 on the concealing frame 15 side. That is, the reinforcing member 17 is a structure arranged between the concealing frame 15 and the panel 16 . The reinforcing member 17 is arranged across the center of the area surrounded by the concealing frame 15 . FIG. 4 shows a section including the reinforcing member 17 and parallel to the longitudinal direction of the reinforcing member 17 . In the state where the reinforcing member 17 is attached to the decorative grille 12, the plate surface of the reinforcing member 17 is a horizontal plane parallel to the surface of the ceiling member 25 facing toward the room. The plate surface of the reinforcing member 17 is the surface of the reinforcing member 17 facing the main body.

FIG. 5 shows one end of the reinforcing member 17 in the longitudinal direction. A hole 17 a is provided in the plate surface at the end of the reinforcing member 17 . The panel 16 is provided with a projecting portion 16 a that is a supporting portion that supports the fixing screw 18 . The protrusion 16a penetrates the hole 17a from below and protrudes toward the main body. The reinforcing member 17 is provided with a wall portion 17b which is a portion vertically erected from the surface of the plate toward the main body. A portion of the projecting portion 16a on the side opposite to the side into which a fixing screw 18, which will be described later, is inserted is adjacent to the wall portion 17b.

The decorative grille 12 is provided with a spring holding portion 22 that is a holding part that holds the spring 13 . An upper end portion of the spring holding portion 22 has a hook shape. The spring holding portion 22 holds the spring 13 by hooking the coil portion of the spring 13 on the upper end portion. The spring holding portion 22 is inserted into the projecting portion 16a from above. The spring holding portion 22 is provided with three holes 22a arranged in the vertical direction, which is the direction in which the spring holding portion 22 is inserted into the protrusion 16a.

The fixing screw 18 is screwed into the wall portion 17b through the projection portion 16a, the spring holding portion 22 and the wall portion 17b in a state where the spring holding portion 22 is inserted into the projection portion 16a. The fixing screw 18 fixes the projecting portion 16a, the wall portion 17b, and the spring holding portion 22 by tightening it into the wall portion 17b. Thereby, the spring 13 held by the spring holding portion 22 is fixed to the panel 16 and the reinforcing member 17 . The fixing screw 18 and the spring holding portion 22 function as a supporting component fixing portion for fixing the spring 13 to the panel 16 .

As shown in FIGS. 4 and 5, the fixing screw 18 is a shoulder screw. Excessive tightening to the wall portion 17b is suppressed by using shoulder screws. A normal screw other than the stepped screw may be used as the fixing screw 18 . A normal screw may be used for the fixing screw 18 . Instead of the fixing screw 18, a resin shaft or the like may be used for the support component fixing portion.

When the fixing screw 18 is tightened, the spring holding part 22 can change the hole 22a through which the fixing screw 18 is passed among the three holes 22a by moving in the vertical direction. By changing the hole through which the fixing screw 18 is passed in the spring holding portion 22, the mounting position of the spring 13 in the decorative grille 12 can be adjusted in three stages in the vertical direction.

The ventilator 100 can adjust the interval between the main body and the decorative grill 12 by adjusting the attachment position of the spring 13 . When the main body is arranged on the back side of the ceiling behind the ceiling material 25 than the normal mounting position, the distance between the main body and the decorative grille 12 is increased more than when the main body is arranged at the normal mounting position. By adjusting the length, the decorative grille 12 can be arranged in the same manner as when the main body is arranged at the normal mounting position.

The spring 13 may be fixed to the panel 16 while being held by the spring holding portion 22 , or may be fixed to the fixing screw 18 without the spring holding portion 22 . In this case, the spring 13 is fixed to the panel 16 by inserting the coil portion of the spring 13 into the protrusion 16a and tightening the fixing screw 18 through the protrusion 16a, the coil portion, and the wall portion 17b. be.

Each of the springs 13 fixed to both ends of the reinforcing member 17 is hooked on the spring fixing portion 7 . The decorative grille 12 is attached to the main body by suspending the panel 16 from the fan casing 6 through the use of two springs 13 . Concealment frame 15 is supported by panels 16 suspended from fan casing 6 . Therefore, since the panel 16 is supported by the main body by the two springs 13, the weight of the panel 16 is applied to the portion where the fitting portion 19 of the concealing frame 15 and the claw portion 19a of the panel 16 are fitted. It is considered to be in a state where it does not apply.

As shown in FIG. 7, a plate surface of the reinforcing member 17 may be provided with a rectifying component 21 for adjusting the air flow. The rectifying component 21 rectifies the air directed from the room to the fan casing 6 . By providing the rectifying component 21, the ventilator 100 can suppress the noise caused by the collision of the airflows.

In a state in which a constant force due to the stress of the spring 13 continues to be applied to the fixing screw 18, substances such as chemicals or oil may adhere to the projection 16a and deteriorate the projection 16a. In such a situation, even if the panel 16 is no longer fixed to the spring holding portion 22 due to the breakage of the projection 16a, the concealing frame 15 and the panel 16 will fall and the concealing frame 15 will be caught on the reinforcing member 17. It is prevented by That is, in the decorative grille 12 , the length of the reinforcing member 17 in the longitudinal direction is longer than the width of the area surrounded by the concealing frame 15 , so that the concealing frame 15 and the panel 16 are held by the spring holding portions 22 or the springs 13 . The concealing frame 15 is hooked on the reinforcing material 17 in the situation that the concealing frame 15 falls out of the container. Thereby, the decorative grill 12 can be prevented from coming off from the main body.

As shown in FIG. 8 , projections 15 a that can communicate with the projections 16 a of the panel 16 are provided on the surface of the concealing frame 15 opposite to the main body side. By providing the projections 15a on the concealment frame 15, the projections 15a enter the holes 17a of the reinforcing member 17 when the concealing frame 15 and the panel 16 fall off, thereby reliably preventing the concealing frame 15 from being caught on the reinforcing member 17. can let

When the concealing frame 15 and the panel 16 are separated from the spring holding portion 22 or the spring 13 , the mutually connected concealing frame 15 and panel 16 are floating from the ceiling material 25 . Therefore, the user can recognize that the cosmetic grill 12 is damaged. Note that the ventilator 100 is not limited to being installed on the ceiling, and may be installed on the wall.

The configuration shown in the above embodiment shows an example of the content of the present invention, and it is possible to combine it with another known technology, and one configuration can be used without departing from the scope of the present invention. It is also possible to omit or change the part.

Reference Signs List 1 air blower 2 body case 2a flange 3 motor 4 fan 5 suction port 6 fan casing 7 spring fixing portion 8 duct connection portion 9 shutter 10 exhaust port 11 terminal cover 12 decorative grille 13 Spring 14 Duct 15 Concealing frame 15a, 16a Projection 16 Panel 17 Reinforcement member 17a, 27 Hole 17b Wall 18 Fixing screw 19 Fitting portion 19a Claw 20 Wire connecting device 21 Rectification component 22 Spring holding part 25 Ceiling material 26 Opening 28 Top surface 100 Ventilation device.

Claims (9)

A decorative grill for a ventilation device having a main body provided with an intake port for sucking indoor air and an exhaust port for sending air to a duct,
a frame surrounding an area through which air sucked into the suction port passes;
a panel attached to a side of the frame body opposite to the main body side and connected to the frame body ;
a support part that is attached to the main body and supports the decorative grille;
a support part fixing part for fixing the support part to the panel;
a structure positioned between the frame and the panel and attached to the support component;
A decorative grill for a ventilator, wherein the structure has an elongated shape longer than the width of the area surrounded by the frame. The panel is provided with a protrusion that protrudes toward the main body,
The structure is provided with a wall vertically erected from the surface of the structure toward the main body,
2. The decorative grille of the ventilator according to claim 1, wherein said supporting part fixing portion has a fixing screw which penetrates said protrusion and is screwed into said wall portion. The support part fixing part has a holding part that is inserted into the projection part and holds the support part,
3. The decorative grille of the ventilator according to claim 2, wherein the fixing screw penetrates the projection and the holding part inserted into the projection and is screwed into the wall. The holding component is provided with a plurality of holes arranged in a direction in which the holding component is inserted into the protrusion, and the fixing screws are passed through the plurality of holes by movement in the insertion direction. 4. The decorative grille of the ventilator according to claim 3, wherein the holes are changeable. 5. The decorative grille of a ventilator according to claim 2, wherein said fixing screw is a shoulder screw. 6. The frame according to any one of claims 2 to 5, wherein the frame is provided with a protrusion that protrudes toward a side opposite to the main body and is connectable to the protrusion of the panel. or a decorative grille of a ventilator according to claim 1. 7. The decorative grille of a ventilator according to claim 1, wherein said structure is a reinforcing member that reinforces said panel. 8. The decorative grille of a ventilator according to claim 1, further comprising a rectifying component provided in said structure for adjusting air flow. a main body provided with an intake port for taking in indoor air and an exhaust port for sending out air to a duct;
A ventilation device, comprising: the decorative grill for the ventilation device according to any one of claims 1 to 8, which is provided on the indoor side of the main body.

Images