JPS6036829Y2 - Blower device for local cooling - Google Patents

Description

[Detailed description of the invention] The present invention relates to a local cooling blow-off device for performing local cooling, and more specifically, a local cooling blow-off device in which a blow-off duct is removably sealed and attached to the blow-off port of an air conditioner body. The present invention relates to a blow-off device.

Conventionally, a blow-off duct is attached to the blow-off port of the air conditioner main body, and cold air is blown out from the blow-off port at the tip of the blow-off duct.
BACKGROUND OF THE INVENTION Local cooling blow-off devices that perform local cooling are well known.

In order to reduce the size of such blow-off devices when packaged, conventionally, a base flange fitted to the base end of the blow-off duct is fitted into the duct attachment part provided at the blow-off port of the air conditioner main body. , fix it with screws via a retaining band, etc.
A blow-off duct is detachably attached to the blow-off port.

However, in the conventional blow-off device, when installing the blow-off duct, it is necessary to fix it with screws, which takes time and effort, and gaps tend to form between the screws of the mounting part, and cold air bypasses through these gaps. However, there was a problem that condensation formed near the mounting part.

The present invention has been developed in view of these points, and allows for easy installation of the air duct to the air outlet with a single touch, and also ensures airtightness at the attachment point to prevent dew condensation from bypass cold air. It is an object of the present invention to provide a blow-off device for local cooling that can prevent such problems.

That is, the present invention provides an outwardly protruding circular tubular duct mounting portion at the air outlet of the air conditioner main body, and a circular tubular resin base flange is fitted to the base end of the air conditioner, and the base flange is fitted onto the base end of the air conditioner. A fitting groove into which the duct attachment part fits is formed on the tip surface of the flange, and a protrusion is provided on the outer periphery of the tip of the inner peripheral wall of the fitting groove to engage and abut the back surface of the peripheral edge of the outlet. An axial notch is provided on the inner circumferential wall, and the protrusion comes into contact with the back surface of the outlet periphery to obtain good airtightness (sealing performance). Flexibility is imparted to make it easy for the protrusion to engage with and disengage from the rear surface of the peripheral edge of the outlet, thereby allowing the outlet to removably attach the outlet duct with a seal.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

In FIG. 1, reference numeral 1 denotes a cooling air conditioner body placed on a wagon 2, and a suction port 3 is provided on the front surface of the air conditioner body 1. An air outlet 4 is provided at the upper part of the air outlet 4, and an air outlet duct 5 made of a flexible tube is attached to the air outlet 4.

In the above-mentioned mounting structure between the air outlet 4 and the air outlet duct 5, a cylindrical duct attachment portion 6 projecting outward is integrally provided at the peripheral edge of the air outlet 4, as shown in FIGS. 2 and 3.
An annular bulging portion 7 that bulges outward is formed at the axial center of the outer circumference of the duct attachment portion 6, and the bulging portion 7 forms an annular engagement groove with the front surface of the air conditioner main body 1. 8 is formed.

On the other hand, at the base end of the blow-off duct 5, as shown in FIGS.
As shown in the figure, a cylindrical base flange 9 made of resin (material: ABS) is fitted and fixed to the outside, and an inner circumferential wall 10 and an outer circumferential wall 11 on which the duct attachment part 6 is fitted are fitted onto the tip surface of the base flange 9. A fitting groove 12 is formed.

A protrusion 13 is integrally provided on the outer periphery of the tip end of the inner circumferential wall 10 of the fitting groove 12 and protrudes to engage and abut the back surface of the circumferential edge of the air outlet 4. Axial cutout 14.14. ...is the circumferential direction 9
Four pieces are cut at equal intervals of 0°.

Further, a protrusion 15 that fits and abuts on the engagement groove 8 is protruded from the inner periphery of the distal end portion of the outer peripheral wall 11 of the engagement groove 12 .

When the base flange 9 is opposed to the duct attachment part 6 and the fitting groove 12 of the base flange 9 is press-fitted to the duct attachment part 6, the inner part of the fitting groove 12 is pressed as shown in FIG. The peripheral wall 10 is curved inwardly by the notch 14 to form the fitting groove 1.
The duct mounting part 6 is fitted into the inner peripheral wall 10.
By engaging and abutting the protrusion 13 on the back surface of the peripheral edge of the air outlet 4, and by fitting the protrusion 15 of the outer peripheral wall 11 into the engagement groove 8, the air outlet duct 5 is removably attached to the air outlet 4 with a seal. is configured to do so.

Therefore, in the above embodiment, when the duct attachment part 6 is fitted into the fitting groove 12 of the base flange 9 and the outlet duct 5 is attached to the outlet 4, the protrusion 13 of the inner peripheral wall 10 is attached to the peripheral edge of the outlet 4. In addition to being in engagement contact with the back surface, the protrusion 15 of the outer peripheral wall 11 is also in engagement contact with the engagement groove 8 of the duct attachment part 6, so that the attachment part of the blowout duct 5 is double sealed. As a result, the airtightness is significantly improved, and the cold air blown out from the outlet 4 will not bypass the attachment part.

Furthermore, when installing the air outlet duct 5 to the air outlet 4, the air outlet duct 5 can be attached with a one-touch operation by placing the air outlet duct 5 facing the base flange 9 on the duct attachment part 6 and pressing the base flange 9 toward the air conditioner main body 1. The duct 5 can be attached extremely easily.

In the above embodiment, the duct attachment part 6 was provided integrally with the peripheral edge of the air outlet 4, but the duct attachment part was provided separately from the main body of the air conditioner, and the duct attachment part was attached to the air outlet. Of course, it is also good.

As explained above, according to the present invention, an outwardly projecting circular tubular duct mounting portion is provided at the air outlet of the air conditioner main body, and a circular tubular resin base flange is provided at the base end of the air conditioner body. a projection that fits into the base flange to form an annular fitting groove into which the duct attachment part fits on the tip surface of the base flange, and that engages and abuts on the outer periphery of the tip of the inner peripheral wall of the fitting groove with the back surface of the peripheral edge of the air outlet; At the same time, an axial notch is provided in the inner circumferential wall, and the air outlet is removably sealed with a seal attached to the air outlet. This improves airtightness at the attachment area of the air outlet and prevents leakage of cold air. In addition to being able to reliably prevent
The blow-off duct can be easily installed with one touch.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is an overall perspective view, Fig. 2 is a front view of the air conditioner main body near the outlet, and Fig. 3 is a sectional view taken along the line ■-■ in Fig. 2. , FIG. 4 is a front view of the base flange portion of the blow-off duct, FIG. 5 is a cross-sectional view taken along the line V-V in FIG. 4, and FIG. 6 is a longitudinal cross-sectional view of the main part showing the installed state of the blow-off duct. 1...Air conditioner body, 4...Blowout outlet, 5...Blowout duct, 6...Duct mounting part, 9...... Base flange, 10... Inner peripheral wall, 12... Fitting groove, 13... Protrusion, 14... Notch.

Claims (1)

[Scope of utility model registration request] A circular tubular duct attachment part 6 is provided at the air outlet 4 of the air conditioner main body 1, and a circular tubular resin base flange 9 is fitted to the base end of the air outlet duct 5. 9
An annular fitting groove 12 into which the duct attachment part 6 fits is formed on the tip surface of the fitting groove 12, and a protrusion that engages and abuts on the outer periphery of the tip of the inner circumferential wall 10 of the fitting groove 12 and engages with the back surface of the circumferential edge of the air outlet 4. 13, an axial notch 14 is provided in the inner circumferential wall 10, and a blow-off duct 5 is removably sealed and attached to the blow-off port 4.