JPH0450875Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a hot air dryer that is incorporated into a hand dryer or a sanitary washing device.

[Conventional technology]

Conventionally, in hot air dryers configured to have a built-in heater at the outlet end of the air duct to which the air discharge nozzle is connected, and to blow out warm air heated within the air duct from the air discharge nozzle, the heater is installed at a specified location. In order to install the heater in the desired position, the heater itself is screwed to the inner wall of the air duct, or a lead wire drawn out from the heater is adapted to the outlet of the air duct.

[Problem that the invention attempts to solve]

However, with the above structure, the heater cannot be freely removed from the air duct, and maintenance and replacement work for the heater, which has a limited lifespan, is difficult. The specified structure had a problem in that the heater could not be installed in the correct position.

The present invention was devised in view of the above-mentioned problems, and allows the heater to be easily removed from the air duct when maintaining or replacing the heater, which has a limited lifespan, and also allows for easy removal of the heater when it is attached to the air duct. The purpose of this invention is to provide a hot air dryer with a simple structure that can be positioned and fixed.

[Means for solving problems]

The gist of the hot air dryer according to the present invention is that a protrusion for positioning the heater is provided at the opening of the air duct through which the heater enters and exits, and a protrusion is provided at the outlet end of the air duct to which the air discharge nozzle is connected. In addition to providing an opening for the heater to enter and exit, if a protrusion is formed on the inner wall of the base side of the air duct at the exit site, and a heater is installed within the opening, the heater will engage with the protrusion and be placed at a predetermined mounting position. It is configured so that it can be fixed in position.

[Effect]

According to the above structure, the installation position of the heater installed in the opening of the air duct is specified by the projection formed on the inner wall of the air duct at the opening, and after installation, the heater is installed in the opening of the air duct. As a result, the heater is prevented from moving toward the base of the air duct.
Further, by removing the lid covering the opening, the heater can be easily moved in and out from the opening, and the heater can be easily positioned when installed.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a hot air dryer according to the present invention will be described below with reference to the drawings.

The drawings show an example in which the hot air dryer according to the present invention is installed in a hand dryer, and FIG. 1 is an exploded perspective view of the hand dryer with the casing 1 removed to clearly show the internal structure. In the figure, the hand washer/dryer has a hot water/soap water discharge device 4 having a discharge port 3 opened above the bowl 2, and an air discharge port 6 of a discharge nozzle 5 disposed above the bowl 2. It is equipped with a hot air dryer 7 with an open opening, and the user washes and dries his/her hands automatically or manually according to the designated operation procedure on the operation panel 8 installed on the front side of the casing 1.

2 and 3 show details of the hot air dryer 7. FIG. This hot air dryer 7 has a fan motor 9 on the base A side and a heater 10 on the outlet end B side.
It has a structure in which the blower duct 11 containing the blower and the blower nozzle 5 are connected at the outlet end B side of the blower duct 11, and when in use, the blower duct 11
Warm air heated inside the bowl 2 is discharged from an air outlet 6 through an air nozzle 5 into the ball 2 to dry the user's fingers.

A heater 10 is placed on the outlet end B side of this air duct 11.
An opening 12 for entry and exit is provided, and one edge of the opening 12, in the illustrated example, the air duct 1.
A recess 13 is formed on the edge of the base A on the center line of the base A. This recess 13 is for inserting a lead wire 14 drawn out from the heater 10 when the heater 10 is disposed inside the opening 12 of the air duct 11, and the lid 1 covering the opening 12 is inserted into the recess 13.
A hole 16 that penetrates the inside and outside of the ventilation duct 11 is formed between the end edge of the air duct 5 and the end edge of the air duct 5 . Furthermore, a partition plate 18 in which a ventilation hole 17 substantially matching the inner diameter of the ventilation nozzle 5 is formed is fixed at the outlet end B of the ventilation duct 11 . This partition plate 18 is for connecting the air discharge nozzle 5 to the outside thereof by screwing or the like, and
It also serves as a positioning plate on one side of the heater 10 housed in the opening 12.

One or more protrusions 1 are provided on the inner wall of the housing part of the heater 10, that is, the base A side of the air duct 11 of the opening 12.
9 is integrally or integrally formed with the inner wall of the ventilation duct 11. By inserting the heater 10 between this protrusion 19 and the partition plate 18, the heater 10
This has the effect of preventing the rotating fan motor 9 from moving toward the impeller 20, specifying the mounting position when the heater 10 is mounted, and stabilizing the hot air temperature characteristics of the heater 10.

In this embodiment, the lid 15 has an insertion edge 21 on one side that can be inserted under the edge of the opening on the side A of the base part of the air duct 11, and on the other side, an insertion edge 21 that can be inserted under the edge of the opening on the side B of the outlet end of the air duct 11. A screw insertion hole 22 for removably screwing is provided on the edge, and the air duct 1
Edge 2 that covers both left and right outside along the center line of ventilation direction of 1
It consists of 3. Thus, the lid 15 is constructed by inserting the insertion edge 21 formed on one side under the opening edge of the air duct 11 and fixing the other side to the outlet end B side of the air duct 11 with screws. The opening 12 can be covered from its top.

A heat-resistant plate (not shown) such as a mica plate is bonded to the inner wall surface of the air duct 11, particularly to the portion where the heater 10 is accommodated, to prevent overheating. Also, heater 1
The lead wire 14 pulled out from the air duct 1
When the lead wire 14 is inserted into the recess 13 on the first side, a rubber bushing 24 is inserted into the recess 13 to prevent the lead wire 14 itself from slipping.

The protrusions 19 can be formed by protruding separately formed protrusions or screws from the inner wall of the air duct 11 into the opening 12, or by press working or the like when forming the air duct 11. It can be configured by integrally molding.

Further, it is obvious that the hot air dryer according to the present invention can be applied not only to the above-mentioned hand dryer but also to other equipment such as sanitary washing equipment.

[Effect of idea]

Since the hot air dryer according to the present invention is constructed as described above, it is not only possible to easily attach and detach the heater from the blower duct and perform maintenance and replacement work on the heater, but also to easily remove the heater from the blower duct. The present invention has excellent practical effects after implementation, such as easy installation positioning and stabilization of hot air temperature characteristics of the heater.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing an example of a hand washing dryer incorporating a hot air dryer according to the present invention, and Fig. 2 shows the hot air dryer, where A is a plan view, B is a side view, FIG. 3 is a plan view showing the air duct opening with the lid removed, and FIG. 4 is a perspective view of the lid. 9...Fan motor, 10...Heater, 11...
...Blower duct, 12...Opening, 19...Protrusion,
A...base, B...exit end.

Claims (1)

[Scope of utility model claims] A fan motor and heater are built into the ventilation duct,
In a hot air dryer configured to discharge warm air blown from the air duct through an air discharge nozzle, an opening for entering and exiting the heater is provided at the outlet end of the air duct to which the air discharge nozzle is connected. A heating device characterized in that a projection is formed on the inner wall of the air duct base side at the opening portion, and when a heater is installed in the opening, the heater engages with the projection and stops at a predetermined position. Wind dryer.