FI117901B - drying cabinet - Google Patents

Abstract

A heat pump operated drying chamber, which comprises a first chamber part (1) for goods to be dried, a second chamber part (2) for the heat pump equipment and a rotatable drum (8) placed in the first chamber part (1) and in an easy way installed into and removed from chamber part (1), as let down on rolls (13),(14) installed in the chamber part, and drying air is conducted into drying drum (8) through free opening (17) arranged in the drum end and out from drum through holes in the other drum end.

Description

117901

DRYING CABINET

The present invention relates to a heat pump-driven drying cabinet comprising a first cabinet member for drying items, a second cabinet member for a heat pump apparatus and associated components, and a rotatable dryer located further in the first cabinet member.

It is already known to have drying cabinets where the moisture from the product to be dried is condensed according to the recirculated air flow into the process? ' on a colder surface and removed as water. The dried air stream is then heated and blown back into the items to be dried. In these cabinets, the cold surface is either a surface maintained at room temperature or, e.g., a water-cooled surface, and the heating of the air is achieved by electrical resistors, e.g., EP 1146161 and GB-2002891. | The cooling and heating surfaces provided by the heat pump in the drying cabinet are known from DE-4212700. The publication discloses a solution in which the condensation and heating of the air using a heat pump are the drying method.

The items to be dried are placed in a rotatable drum through which the air flow is • ·!, '··. In the solution, the drum is firmly in the cabinet and other hardware is in the lower base.

• · ·. V The equipment can only be used to dry items by placing them in a drum, which limits its use • · «: V is somewhat limited as not all textiles and garments can be dried ··· in a rotating drum without causing damage or else · ·: goods causing damage to other goods .

♦ * · i • · · · 1 £ • ·.

• · ♦. '$

The heat pump-type drying cabinet according to the invention surprisingly solves the problems associated with and connection of the drying cabinets and drying cabinets, and achieves a substantial improvement in the hardware structure and comfort.

*

The heat pump-type drying cabinet according to the invention is characterized in that t • · · * ... · the dryer is located in the cabinet section in an easy-to-install and removable manner, ^ • J · as lowered on rollers mounted in the cabinet section and drying air through the provided free opening and out of the drum through the openings on the other end of the drum.

117901 2 'The significant advantages of the invention are that the easily removable dryer allows the cabinet space to be grown to be suitable for hanging full-sized clothes.

The relatively lightweight plastic removable drum can be considered as a laundry basket to collect laundry prior to transfer to a washing machine. In turn, it can also be used to collect machine-washed and spun laundry and to lift the drum and laundry to the drying cabinet. The drum is easy to lift in the cabinet on the rolls in the cabinet, so it can also be lifted with the laundry, for example, wet in a 10 kg drum. By rotating the drum slowly during drying at less than 20 rpm, the wear of textiles is minimal compared to conventional tumble dryers. Also, the power consumption of the rotary motor is very low. The advantage of the cabinet is that, at the same time as tumble drying, textiles that are unsuitable for tumble drying can be dried at the top of the cabinet, for example requiring hanging.

In the following, the invention will be explained in more detail with reference to the accompanying drawing, in which Figure 1 shows a front view of a drying cabinet with the door open.

Figure 2 shows a side view of the drying cabinet with the side wall removed.

Figure 3 shows the drying cabinet with the drum removed from the front.

Figure 4 shows the air duct connection of the foot dryer and the valve.

1, there is a drying cabinet having a first cupboard portion 1 at the top of structure V and a second cupboard portion 2 at the bottom of the structure forming a plinth portion.

• · «: V The first cabinet part 1 includes a rotatable dryer 8 mounted on a ··· roller 13 for rotation. At least one roller 13 is coupled to the engine and is drive.

• · * * * • · * · The hub 8 has a free opening 17 for forward positioning and removal of laundry.

«·· · * ··· * The base plinth 2 has a compressor 3, a cooling radiator 4 a heating radiator 6, and * the required heat pump components and controls. The lower part also includes at least | • * · · v “j / one air circulation fan 5 for circulating air through the lower radiators 4 and 5 and leading to the top of the cabinet 1. The air is first recycled to the cooling coil 4,« ...: * then to the heating coil 5 and There is also a condensate ··· * ··· * water collector 10 at the bottom.

Fig. 2 shows a drying cabinet from the side, whereby the flow of air from the lower base plinth 2 to the upper cabinet part 1 is shown. The partition 7 separates the lower space 2 airspace 3> 117901 from the upper 1 airspace. 15, the door structure acts as an air channel until the flow in the door has reached the free drum opening 17. The door 9 has an opening 18 corresponding to the outlet 15 and an opening 19 corresponding to the opening 17 of the drum 8, possibly also with a seal when closed, airflow from inside the door enters directly into drum 8. The airflow from drum 8 is exited through the opening at one end of the drum, and the airflow from the drum dries any other hanging textiles at the top.

The airflow is led to return to the lower plinth through opening 11. The air ducts 16 for drying footwear are folded down and do not allow airflow to escape. In the cupboard, clothes that do not hang up to the drum can be dried above the drum 8. The drum is supported by wheels 14 at the rear. The drum 8 of Figure 2 is provided with circumferential thighs 21 so that very wet laundry can first be in the drum | press against the bottom and the water which is easily discharged from the laundry may drain through the holes 21 from the drum. The water is led to condensate vessel 10. After a suitable drainage time, heat pump drying is started.

Figure 3 shows the drying cabinet drum 8 removed. The air ducts 16 for drying the shoes are raised, thereby passing through the pipe folding point. 1: After the valve opens, the air flow to the footwear. Once the drum has been removed, the cabinet · • · 1 ... ...

* .1.1 Place full-length garments 20 with clothes hangers.

Fig. 4 shows an example of how the drying pipe 16 receives air from the pipe 12 coming from the downstairs 2 • 1 jt1 when the pipe 16 is turned upwards. When tube 16 is turned;

• ·. I

• έ t * · 1 horizontally, no air from pipe 12 to pipe 16, 1 · · · 2 · · ·

During drying, the rotation of the drum may be intermittent with standing times.

• · 3

In one preferred mode of rotation, the direction of rotation of the drum is reversed, which enhances the movement of the laundry in the drum, since the rotation is very slow at less than 20 # revolutions per minute, possibly even less than 10 revolutions. The spinning head described above gently handles laundry and is clearly 5% better than previous tumble drying methods.

4 'i: 117901 Drying by heat pump keeps the cabinet temperature relatively low, e.g. about 30 ° C. However, the blowing air at that temperature is very dry, so drying of '0 is effective. Due to the low operating temperature, the drum 8 may be made of plastic, e.g., by rotary molding, which is a preferred method of manufacture. The drum keeps its shape well at the temperatures in the machine.

• · • · · • »· v-.

• • • • • 1 • 1 · • · • # · • ft • · * 1 · • · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·... ''. '.¾ • «• ♦ -i ·

• · · I

• · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Similar to to - to to Star to Fahr ft ft · · · ft ft

Claims (5)

117901; A heat pump operated drying cabinet comprising a first cabinet section (1) for articles to be dried, a second cabinet section (2) for a heat pump apparatus and a rotatable dryer (8) located in the first cabinet section (1), characterized in that the dryer (8) and removable, such as for lowering on rollers (13, 14) mounted in the cupboard section, and drying air is led into the dryer drum (8) through a free opening (17) provided on the end of the drum and out through the openings on the other end. Drying cabinet according to Claim 1, characterized in that the blowing air is introduced into the drum (8) using a cabinet door (9) as a duct, supplying air flow to the cabinet door structure and into the cabinet section (1) at the drum end opening (17). Drying cabinet according to claim 1, characterized in that the cabinet section (1) is operable with the drum (8) removed, whereby clothes can be hung on the cabinet section (1). • 1 · • · • · • ♦ ♦ ... * · 1 · 1 Drying cabinet according to claim 1, characterized in that the rotation speed of the drum (8) is less than 20 revolutions per minute. • 1 • · ··· • 1 • · 1 ”1 / A drying cabinet according to claim 1, characterized in that it includes drying means for footwear, such as air blowing tubes (16). • · • · · 1 1 · ·· 1 I * 1 ·: • · • · * ·· Λ • * · * • 1 1 1 * · · * «* · • ·« * * ♦ 1 ·· · · 1 1 * 1 117901 6 * -¾1 PATENTKRAV ^