JP4581736B2 - Ventilator and air conditioner with ventilator - Google Patents

Description

  The present invention relates to a ventilator for ventilating a living room using an air blowing hose and an air conditioner equipped with the ventilator.

  The socket shape attached to the outlet of a conventional ventilator that ventilates a conventional air-conditioning room is a shape that is straight in the direction of the air blow, or if the hose is routed perpendicular to the direction of the air blow, use an R90 ° elbow pipe. It is comprised so that a hose can be taken (for example, refer patent document 1).

JP 2003-185179 A (page 3-4, FIG. 2)

  Since the conventional ventilator is configured as described above, when the hose is routed perpendicular to the ventilating direction of the ventilator, an elbow pipe of R90 ° is used, so the bending pressure loss increases, and the ventilation airflow increases. There was a problem of lowering. In addition, when a straight socket is used, even if the hose outer periphery is provided with irregularities to suppress the occurrence of buckling, if the bending R is reduced, the buckling occurs and causes noise deterioration and air volume reduction. There was a problem.

  The present invention has been made to solve the above-described problems, and a first object is to reduce the bending pressure loss of the ventilation air blowing hose and prevent the hose from buckling. A ventilation device that suppresses the decrease and the increase in noise is obtained.

  A second object is a hose connected to a ventilator in a ventilator that is attached to an indoor unit, an outdoor unit, or an outdoor wall of a separate type air conditioner and operates in conjunction with the operation of the air conditioner or operates independently. It is possible to obtain a ventilator and an air conditioner equipped with a ventilator that can suppress noise deterioration due to air column resonance that occurs in a specific frequency region due to the length of the air.

The ventilator according to the present invention has a cylindrical outlet for exhausting ventilation air, a disc-shaped rib provided on the outer periphery of the outlet , one connected to the outlet , and the other to the outside . A socket to which a hose to be discharged is attached , and a recess partly provided in an inner peripheral surface on the side connected to the outlet of the socket , and the socket has an end on the side connected to the outlet what der to be connected to the contact with air outlet on the rib, recess, with an open shape at an end portion of the side connected to the air outlet, the length of the air passage flow direction of the rib of the socket When the socket is connected to the air outlet, it is closed to the outside by the outer peripheral surface of the air outlet, the rib and the recess, and the inside of the hose. Space communicating with the air path Those formed.

Ventilation device according to the present invention, the space communicating with the air passage of the internal hose is closed to the outside is formed by the outer peripheral surface and the ribs and recesses of the blow out port, propagates columnar resonance generated in the air passage of the internal hose Thus, the noise can be reduced by air column resonance .

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to FIGS.
1 is a perspective view of a socket of a ventilator, FIGS. 2 and 3 are explanatory diagrams of attaching a hose to the socket of the ventilator, FIG. 4 is a perspective view of the ventilator and the socket, and FIG. 5 is a socket attached to the ventilator. FIG. 6 is a front view showing how the ventilation hose is attached to the socket. FIG. 7 is a perspective view of the hose connection component, and FIG. 8 is an explanatory view of mounting the insect repellent cover on the hose.

  1 and 4, the socket 1 connected to the blower port and the blowout port 11 of the ventilation device 10 that forms the air passage of this fan and incorporates the drive device is bent in a V shape. In addition, a convex rib 3 arranged in a spiral shape is provided on the inner periphery of the hose connection portion on the side where the hose 5 or 6 is attached, and a tip is provided on the side surface connected to the outlet 11 of the ventilation device 10 on the opposite side. An elastic handle 2 is provided. Further, the air outlet 11 of the ventilator 10 has a cylindrical shape, and a disc-shaped rib 12 is provided on the outer peripheral surface thereof, and the connection side end of the socket 1 to the air outlet 11 abuts on the socket 1. The socket 1 is fixed to the ventilating device 10 by engaging the front-end locking claw of the provided handle 2.

  The hose (thin tube) 5 or the hose (large tube) 6 for circulating the ventilation air is attached to the opposite side of the ventilator of the socket 1 by the outlet 11 and the socket 1 of the ventilator 10 thus configured. The other end side of 5 or 6 is extended to the outside, and the air in the room is discharged to the outside through the hose 5 or 6 attached by driving the ventilation device 10.

  As described above, the air outlet 11 of the ventilator 10 is formed in a cylindrical shape, the disc-shaped rib 12 is provided on the outer periphery thereof, and the handle 2 of the socket 1 bent in a dogleg shape is attached to the outer periphery of the air outlet 11 of the ventilator 10. As shown in FIG. 5, the U-shaped socket 1 is rotated in any direction of 360 ° so that the connected hose can be pulled out as shown in FIG. It can be attached to the ventilator 10 depending on the position.

  In the case of the hose 5 having a small outer diameter as shown in FIG. 2, the spiral rib 3 is provided on the inner peripheral surface of the hose attachment side to the socket 1 and the protrusion is not provided on the outer peripheral side. Is attached to the inside of the hose connection portion 1a of the socket 1 by rotating the helical rib 5a provided to suppress the buckling on the outside of the hose 5 along the spiral rib 3, and hooking each other. It becomes difficult to come off. As shown in FIG. 3, in the case of the hose 6 having a large inner diameter, the hose 5b having a small outer diameter is disposed on the inner side of the hose connection portion 1a of the socket 1 in the same manner as described above by the same length as the hose connection portion 1a. The hose 6 having a large inner diameter is attached from the outer periphery of the hose connection portion 1a.

  In addition, when attaching this hose 6 with a large internal diameter, if the spiral rib 3 provided on the inner peripheral surface of the hose connection portion 1a of the socket 1 is exposed to the air passage, the spiral rib 3 Since there is a concern that this may cause air path resistance and increase pressure loss or cause abnormal noise, the insertion of a short hose 5b having a small outer diameter eliminates irregularities on the air path surface due to ribs. And a smooth air flow on the inner surface of the hose 5b can be obtained.

  By using the ventilator 10 and the socket 1 as described above, there is a wall in the vicinity of the outlet 11 of the ventilator 10 as shown in FIG. Even if the bending R becomes smaller and the buckling occurs, the hose can be bent vertically by rotating the hook-shaped socket 1 and directing the hose 5 or 6 in the direction of rotation. Therefore, it is possible to prevent the buckling, further reduce the bending pressure loss of the hose, and suppress the reduction of the ventilation performance of the ventilator.

  In addition, a spiral rib 3 is provided on the inner periphery of the hose connecting portion 1a to which the hose of the socket 1 is attached, and the outer peripheral side is not provided with a projection or the like so that one socket 1 can be used without using a different-diameter joint. The hoses 5 and 6 having different inner diameters can be attached to the ventilation device 10.

  As described above, as shown in FIG. 3, when the hose 6 having a large diameter is attached to the socket 1, the hose 5 b having a small diameter that is almost the same as the range of the spiral rib 3 provided inside the socket 1. The hose 6 having a large inner diameter is attached to the outer periphery of the socket 1 while the air pipe is attached, thereby preventing blowing noise when passing through the spiral rib 3 provided on the inner periphery of the socket 1, and about 3 [dB (A) ] Can be reduced.

  In addition, as shown in FIGS. 7 and 8, in the connection part 15 for connecting the hose 5 or 6 and the insect repellent cover 16 which is attached to the end of the hose arranged outdoors to prevent the invasion of insects, By providing a spiral rib 3 on the outer periphery and not providing a projection or the like on the outer periphery, it is possible to attach hoses having different inner diameters with one component.

Embodiment 2. FIG.
FIG. 9 is a perspective view of the socket 1 according to Embodiment 2 of the present invention. As described in the first embodiment, this socket has a generally U-shaped configuration, and can be attached to the outlet of the ventilator so that it can rotate 360 °. In addition, a space for the concave portion 4 is partially provided inside the socket 1 on the side attached to the outlet 11 of the ventilation device 10.

  FIG. 10 is a sectional view of the socket 1 and the outlet 11 of the ventilator. The inner diameter of the socket 1 on the side connected to the air outlet 11 of the ventilator and the diameter of the cylindrical side surface of the air outlet 11 are such that the air outlet 11 is smoothly inserted into the socket 1 and does not rattle. It has a diameter dimension with a dimensional tolerance of a degree of clearance. In addition, the length of the space in the recess 4 provided in the inner periphery of the socket 1 on the side attached to the outlet 11 is L2, and the wind from the disk-shaped rib 12 for fixing the outlet 11 to the tip is fixed. When the length in the road flow direction is L1, L1 ≦ L2. As a result, air column resonance generated by the air path length of the hose connected to the socket 1 is formed by the outer surface of the outlet 11 and the disc-like rib 12 and the recess 4 of the socket 1 and closed to the outside. The noise is reduced by propagating to a space communicating with the air path.

  In the shape of the socket 1 configured as described above, as shown in FIG. 11, because of a configuration in which a hose is connected to blow air, noise due to resonance sound is generated depending on its length, and the noise level due to ventilation air blowing The generation of noise due to the resonance sound can be suppressed by providing a space in the recess 4 inside the socket on the side attached to the outlet of the ventilator for the problem that the sound quality changes or the sound quality changes. . Here, in FIG. 11, the vertical axis represents noise (value), the horizontal axis represents frequency, and the solid line represents the noise characteristics in the case of the present invention and the dotted line represents the case of the conventional socket. In particular, in the range where the resonance sound of the hose surrounded by the one-dot chain line in FIG. 11 is generated, the noise is lower when the socket 1 of the present invention is used than in the conventional case.

  In FIG. 9, the recesses 4 provided on the inner circumference of the socket 1 are provided at three locations every 120 ° of the inner circumference. However, the present invention is not limited to this. The same effect can be obtained as long as it has at least one recess 4 and has a predetermined space that can reduce the resonance generated by the hose. Moreover, the recessed part 4 provided in the inner periphery of the socket 1 is an open shape in the edge part by the side of the blower outlet 11 connection of a ventilator, and forms the closed space by contact | abutting to the disk shaped rib 12 of the blower outlet 11. FIG. However, the present invention is not limited to this. Even when the socket 1 has an end face on the connection side of the outlet 11, a space for the recess 4 closed to the outside is formed by mounting the socket 1 and the outlet 11. A similar effect can be obtained.

Embodiment 3 FIG.
FIG. 10 is a configuration diagram of an air conditioner with a ventilator according to Embodiment 3 of the present invention. In FIG. 10, the air conditioner indoor unit 30 is configured by sequentially connecting a compressor, an outdoor heat exchanger, and a pressure reducing device to a box having a front or upper suction port 32 and a lower front outlet 33. An air blower (not shown) that sucks indoor air from the indoor heat exchanger 34 and the suction port 32 of the refrigeration cycle and blows the air exchanged through the heat exchanger 34 into the room through the outlet 33 Air purifiers 35 and 36 for purifying indoor air are provided in parallel on the upstream side of the air flow to the indoor heat exchanger 34.

  In addition, a control board 31 for adjusting the indoor temperature and humidity to a set value desired by the user is provided at the right end in front view of the air conditioner indoor unit 30, and the ventilation described in the first or second embodiment. The device 10 and the socket 1 are installed in the left end portion of the air conditioner indoor unit 30 on the opposite side of the heat exchanger 34 with respect to the control board 31. A hose 5 is attached to the ventilator 10 via a socket 1, and the other end side of the hose 5 is drawn out to the outside through a through hole 41 of the wall 40. An insect repellent cover 16 is attached so as not to enter.

  The air conditioner with the ventilation function configured as described above causes the air in the living room to be larger than the air inlet 32 of the air conditioner indoor unit 30 when the ventilator 10 is driven in conjunction with the operation of the air conditioner or independently. After passing through a prefilter (not shown) to be collected, the air is sucked in from the suction side of the ventilator 10, passes through the hose 5 from the outlet 11 through the socket 1, and is discharged outside the room.

  In a conventional air conditioner with a ventilating function, for example, if the space between the ventilator 10 and the wall 40 is small, the hose 5 is bent when the hose 5 is wound, so that bending occurs, or the hose 5 is vertically attached. Since it is necessary to bend, the bending pressure loss increases and the ventilation performance of the ventilator 10 is deteriorated. Further, since the hose 5 is used, resonance occurs due to the length of the air passage, and it may be annoying due to deterioration of noise level or sound quality.

  However, since the air conditioner 30 with a ventilation function using the ventilator 10 and the socket 1 of the present invention suppresses an increase in bending pressure loss of the hose 5 and also suppresses the buckling of the hose 5, The performance degradation can be suppressed, and the input of a ventilator required for ventilation of necessary indoor air is also suppressed, and an energy saving effect can be obtained.

  Also, by using this socket 1, as described with reference to FIGS. 2 and 3, hoses 5 and 6 having different inner diameters can be attached to one socket,

  Further, by providing the space of the recess 4 inside the socket 1 on the outlet 11 side of the ventilator 10, it is possible to suppress the deterioration of noise due to the resonance sound generated inside the air passage of the hose 5 as shown in FIG. .

It is a perspective view of the socket of the ventilator in Embodiment 1 of this invention. It is attachment explanatory drawing of the socket and hose in Embodiment 1 of this invention. It is attachment explanatory drawing of the socket and hose in Embodiment 1 of this invention. It is a perspective view of the ventilation apparatus and socket in Embodiment 1 of this invention. It is a perspective view of the state which attached the socket of the ventilator in Embodiment 1 of this invention. It is a front view which shows hose attachment and rotation to the socket in Embodiment 1 of this invention. It is a perspective view of the hose connection component in Embodiment 1 of this invention. It is explanatory drawing of the insect repellent cover attachment to the hose in Embodiment 1 of this invention. It is a perspective view of the socket in Embodiment 2 of this invention. It is sectional drawing of the socket in Embodiment 2 of this invention. It is a noise characteristic figure at the time of using the socket in Embodiment 2 of this invention. It is a block diagram of the air conditioner with a ventilator in Embodiment 3 of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Socket, 1a Hose connection part, 2 Handle, 3 Spiral rib, 4 Recessed part, 5 Hose, 6 Hose, 10 Ventilator, 11 Air outlet, 12 Rib, 15 Connection part, 6 Insect repellent cover, 30 Air conditioner room Machine, 31 control board, 32 air inlet, 33 air outlet, 34 indoor heat exchanger, 35, 36 air purifier, 40 wall, 41 through hole.

Claims (6)

A cylindrical outlet for ventilating air;
A disc-shaped rib provided on the outer periphery of the outlet;
A socket to which one side is connected to the outlet and the other side is attached with a hose for discharging the ventilation air to the outside ;
A concave portion partially provided on the inner peripheral surface of the socket connected to the outlet ,
The socket is be one end on the side connected to the air outlet is connected to the front contact with the air outlet to cut blanking,
The concave portion has an open shape at an end portion on the side connected to the blowout port, and the length of the airflow direction in the flow path direction is from the contact surface of the rib with the socket to the tip of the blowout port. Configured longer than the length in the flow direction,
When the socket is connected to the outlet , a ventilation space is formed which is closed to the outside and communicated with the air passage inside the hose by the outer peripheral surface of the outlet, the rib and the recess. apparatus. The concave portion, the ventilation device according to claim 1, characterized in that provided at regular intervals at multiple locations of the inner peripheral surface of the side connected to the air outlet of the socket. The socket ventilation system according to claim 1 or 2, characterized in that it has a air passage bent dogleg shape. A box having a suction port and a blower outlet is provided with a blower that sucks indoor air from the heat exchanger and the suction port, and blows out the indoor air that has passed through the heat exchanger and exchanged heat from the blower outlet to the room. while it is in ventilator with air conditioner ventilator is provided on the box body to ventilate the room,
The ventilator is
A cylindrical outlet for ventilating air;
A disc-shaped rib provided on the outer periphery of the outlet;
One side is connected to the outlet, and the other side is a socket for connecting a hose for discharging the ventilation air to the outside,
A concave portion partially provided on the inner peripheral surface of the socket connected to the outlet ,
The socket is be one end on the side connected to the air outlet is connected to the front contact with the air outlet to cut blanking,
The concave portion has an open shape at an end portion on the side connected to the blowout port, and the length of the airflow direction in the flow path direction is from the contact surface of the rib with the socket to the tip of the blowout port. Configured longer than the length in the flow direction,
When the socket is connected to the outlet , a ventilation space is formed which is closed to the outside and communicated with the air passage inside the hose by the outer peripheral surface of the outlet, the rib and the recess. Air conditioner with device . Before Ki凹 part, claim 4 ventilator with air conditioner, wherein the provided at regular intervals at multiple locations of the inner peripheral surface of the side connected to the air outlet of the socket. The socket ventilator with the air conditioner according to claim 4 or 5, wherein it is perforated the air passage bent dogleg shape.

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