JP2932517B2 - Dehumidifying clothes dryer - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehumidification-type clothes dryer including a fan case accommodating a two-wing fan having a heat exchange function and a blowing function, and a circulation duct joined to the fan case. It is.

2. Description of the Related Art A conventional dehumidifying clothes dryer has a configuration shown in FIGS.

In FIG. 5, 1 is an outer frame, 2 is a heater serving as a heat source,
Reference numeral 3 denotes a heater case for housing the heater 2, 4 a rotary drum for storing and stirring clothes, 5 a double-wing fan having a function of blowing air while exchanging heat between the outside air 6 and the circulating air 7, and 8 a fan storing the double-wing fan 5. Case. On the other hand, reference numeral 9 denotes a circulation duct for guiding the circulating wind 7 of the two-wing fan 5 from the fan case 8 to the heater case 3, and reference numeral 10 denotes a drain port. Reference numeral 11 denotes a motor for driving the two-wing fan 5 and the rotary drum 4 to rotate.

In the above configuration, when the motor 11 rotates, cooling air (outside air) 6 and circulating air 7 are generated, and the circulating air 7 reaches the heater 2 via the circulating duct 9, is heated by the heater 2, is introduced into the drum 4, and is A flow of drying the 12 and returning to the two-wing fan 5 again is formed. On the other hand, the circulating wind 7 that has been exchanged with the clothing 12 and has become hot and humid is the cooling wind 6 and the two-wing fan 5.
The steam of the circulating air 7 becomes condensed water and is drained out of the outer frame 1 through the drain port 10.

In addition, as shown in FIGS. 4 and 5, the joint between the fan case 8 and the circulation duct 9 is configured such that a convex portion b is provided on the fan case 8 and a concave portion a is provided on the circulation duct 9 and fitted. In order to prevent detachment between the outer frame 1 and the circulation duct 9, a substantially rectangular parallelepiped support 13 is narrowed.

Problems to be Solved by the Invention In such a conventional configuration, in order to prevent the joint between the fan case 8 and the circulation duct 9 from coming off, the support 13 must be narrowed, which increases the number of assembly steps and increases the cost. There were challenges. In addition, there is a problem that the support 13 falls off during transportation, the circulation duct 9 thermally expands during the operation of the dryer, and comes off from the fan case 8, condensed water leaks, and the circulating air 7 leaks, leading to a decrease in performance.

An object of the present invention is to solve such a problem and to improve performance and reduce the number of parts.

Means for Solving the Problems In order to achieve the above object, the present invention relates to a method for fitting a joint of a circulation duct such that a joint of a fan case is on the inside and a joint of the circulation duct on the outside on the outside. A tongue having one or a plurality of holes is provided, and a projection that fits into the hole of the tongue is provided at the joint of the fan case on the inside.

Effect With this configuration, the circulation duct and the fan case are fitted together, and the fitted joint is joined between the outside and the inside with the tongue hole and the projection that fits into the hole. Bonding is ensured, and it is not necessary to prevent disengagement by a separate member such as a support, so that performance can be improved and the number of parts can be reduced.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to FIG. 1 and FIG. The same parts as those in the conventional configuration are denoted by the same reference numerals, and the description thereof will be omitted. Only the features of the present invention will be described below.

As shown in the drawing, the structure of the joint between the circulation duct 15 and the fan case 14 which is a feature of the present invention is as follows.
17 is fitted so that the joint 16 of the fan case 14 is on the inside, and the tongue 19 having one or a plurality of holes 18 is provided on the joint 17 of the circulation duct 15 on the outside to be on the inside. The joint 16 of the fan case 14 is provided with a projection 20 that fits into the hole 18 of the tongue 19 at the time of joining, so that the hole is securely inserted at the time of joining.
The configuration is such that the projection 18 and the projection 20 are fitted.

According to this configuration, it is possible to eliminate the conventional support member 13 that supports the circulation duct and reduce the number of assembly steps.
Further, the joint between the circulation duct 15 and the fan case 14 can be prevented from being detached by the vibration during transportation by the fitting of the hole 18 and the projection 20.

In this embodiment, the circulation duct 15 is fitted so as to be located outside the fan case 14, but the circulation duct 15 is
The fitting may be performed such that 15 is inside the fan case 14.

Effect of the Invention As described above, according to the present invention, the holes and projections of the tongue provided at the joint between the circulation duct and the fan case are securely fitted at the time of joining, and the circulation duct is thermally expanded during operation of the product. Even if it does, the bonding does not come off, and the performance can be maintained permanently. Further, unlike the conventional case, a support for preventing detachment is not required, and the number of parts can be reduced.

[Brief description of the drawings]

FIG. 1 is a rear perspective view of a dehumidifying clothes dryer according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing a junction between the fan case and the circulation duct, and FIG. FIG. 4 is a cross-sectional view showing a joint portion between the fan case and the circulation duct, and FIG. 5 is a vertical cross-sectional view of the dehumidification-type clothes dryer. 1 ... outer frame, 2 ... heater, 3 ... heater case, 5 ...
… Fan wing fan, 8,14… Fan case, 15… Circulation duct, 16,17 joint, 18… Hole, 19 …… Tongue, 20 …… Protrusion.

Claims (1)

(57) [Claims] A rotating drum rotatably disposed in an outer frame;
A heater serving as a heat source, a heater case accommodating the heater, a two-blade fan having a function of blowing air while exchanging heat between circulating air and outside air, a fan case accommodating the two-blade fan, and a heater case from the fan case. A circulation duct that guides the circulating wind to the junction of the circulation duct so that the junction of the fan case is on the inside, and one or more holes are formed on the junction of the circulation duct on the outside. A dehumidification-type clothes dryer in which a tongue portion is provided, and a projection that fits into a hole in the tongue portion is provided at a joint portion of the fan case on the inside.