DE8125930U1 - "LAUNDRY DRYER WITH CONDENSATION DEVICE" - Google Patents

Description

ΕΒΞΖ-81/75 "- '3 -"'

09/04/1981 Ul / ha

Licentia
Patent-Verwaltungs-GmbH Frankfurt / Main

Tumble dryer with condensation device |

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The invention relates to a tumble dryer with a with | Cooling air or cooling water working condensation pre- | direction and a collecting tank arranged in the bottom of the housing, in which a drain pump is provided.

In a known tumble dryer with water-cooled condensation device (DE-AS 22 14 618) that Cooling water after passing through the condensation device together with the resulting condensate under the condenser at the bottom of the housing collected in a sump and pumped out from there.

It is also a tumble dryer with a closed drying air circuit that is passed through an air-cooled condenser known (DE-AS 22 19 889), in which the condensate Collected in a condensate sump and via a drain line by a pump into a condensate container or is promoted into a direct drain.

The emptying pumps used in the known tumble dryers have proven to be particularly prone to failure and costly, with storage and emptying very often

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seal of the pump shaft are the cause of the short service life of the pump. Besides, they often are washing machines or washing machines used in the tumble dryer Dishwasher drain pumps usually oversized and equipped in a complex design with its own drive motor. In addition to increased costs The known pumps require a relatively large installation space and cause high operating noise.

The invention is based on the object of creating a tumble dryer which avoids these disadvantages and through an emptying system adapted to tight spaces with an economically working, The emptying pump is not susceptible to failure.

According to the invention, this is achieved by the features in the characterizing part of claim 1. Beneficial Further developments of the invention are specified in claims 2 to 4.

The inventive design of the tumble dryer has the advantage that both within the The collecting sump for wet-running bearings and the bearing running dry above the maximum level do not have any shaft seals which have proven to be the most common sources of interference in practice. Will the Pump housing parts molded into the collecting pan or its cover, so the tumble dryer consist of as few parts as possible. This also contributes to the fact that the pump shaft is molded directly into a Collecting trough side wall or in an integrally formed web of the collecting trough can be stored. In further simplification the pump shaft, which is pre-assembled with the pump impeller, the two flange bearings and a belt pulley, can be inserted into the Bearing shells of the collecting tank side wall or the web

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inserted and by placing and locking the. Cover the drainage system to be completed. File is a drive of the pump shaft via a Belt by the drum drive motor possible, so that a separate pump motor is not necessary.

Based on the exemplary embodiment shown in the drawing the invention is explained below. It shows:

Pig. 1 shows a rear view of a tumble dryer with the rear wall removed,

FIG. 2 shows a partial section A-B through the emptying system according to FIG. 1,

The tumble dryer has a housing 1 in the usual way, in which a drum 4 rotatable via a drum drive belt 2 and a motor 3 is arranged as a laundry container is. To dehumidify the air, which is largely saturated with moisture expelled from the laundry, a water- or air-cooled condensation device 5 is provided, from which the condensate and possibly cooling water that accumulates therein A channel 6 flows into a collecting trough 7, which flows into the bottom 8 of the housing or into a plastic base part 9 is molded.

In the sump 7 is a with a pump impeller 10, a pulley 11 and two bearings 12, I3, in particular Flanged bearings, equipped pump shaft 14 · at an angle of arranged at an angle of about 20 °, the lower bearing 12 close to the impeller being below a minimum level on a web 15 formed within the collecting trough and that drive-side bearing 13 in the area of the upper edge a collecting pan side wall 16 is supported above a maximum level 17 of the collecting pan. Further is the soil

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EBHZ-81/75 "'" -6 "-" 09/04/1981

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the collecting trough to a pump housing lower part 18 shaped j one wall part of which is formed by the web 15 will.

The collecting pan 7 is covered by a cover 19, which carries a pump housing upper part 20 with a pressure port 21 for a hose connection. The lid points Furthermore, the upper shells for the bearings 12, 13 and can be locked against the collecting trough or the housing base. A latching is denoted by 22. The pump shaft 14 is driven by the motor 3 and a Belt 23.

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ΕΒΞΖ-81/75 α 7 '■ * 04.09-1981

Summary: Tumble dryer with condensation device

In a tumble dryer of this type, a pump shaft (14) is mounted in an inclined position in a collecting pan (7) that receives the condensate and possibly the cooling water, while the lower bearing (12) provided near a pump impeller (10) is below the minimum level within the collecting pan is kept that it runs wet and the other drive "on the bottom side bearing (13) above the maximum level (17) between the sump and a cover ._ (19) is designed as a dry bearing. While the pump housing lower part (18) in the sump is located, the cover carries the upper part of the pump housing (20), so that a simple and space-saving emptying system is created which is not susceptible to failure due to the lack of shaft seals and because of the few components (FIG. 2) _e

Claims (4)

• • III! Il ft · «ft · • ■ I II» «· · ft · ■ lit) II · · t · i ι» a »i ι ·· ι ·· · * EBHZ-81/75" '"" "' * ° π * 04.09.1981 TJl / ha claims 1. Tumble dryer with one with cooling air or cooling water working condensation device and a collecting pan arranged in the bottom of the housing, in which an Ent Emptying pump is provided, characterized in that in the collecting trough (7) a Punroenwelle (14) in It is inclined so that a lower bearing (12) arranged near the pump impeller (10) is below the minimum level inside the collecting tray and an upper drive-side Storage (13) is provided above the maximum level (17) between the collecting trough and a cover (19) which opposite a pump housing lower part (18) located in the collecting trough carries an upper pump housing part (20). * · 2. Tumble dryer according to claim 1, characterized in that that the pump shaft (14) is equipped with the pump impeller (10), a belt pulley (11), a wet-running and a dry-running flange bearing (12 or 13) and under a Angle of about 20 ° between a web (15) within the collecting pan (7) and the upper edge of a collecting pan side wall (16) is stored. 3 · Laundry dryer according to claim 1 and 2, characterized in that the pump housing lower part (18) is in the floor the collecting trough (7) and the upper part of the pump housing (20) a pressure port (21) is molded into the cover (19) which can be latched against the collective heat or the housing base (8) , j is. ■ ι mi »ι ti (· · III ItII It ·· . - I lilt »III ·· * /; ■ I I I I I I> I I I * * V EBHZ-81/75 -'2 - 04.09.1981 Ul / ha 4. Tumble dryer according to claims 1-3 »characterized in that that the pulley (11) of the pump shaft via a belt (23) to the drive motor (3) of the Laundry drum (4) is connected. ill It lilt ι ι 1 1 I ι 1 (