Washing machine with dryer where condensation device is embedded in washing unit. RU patent 2517009.

FIELD: personal use articles.

SUBSTANCE: household combined washing machine contains a tank (1) with a rotary drum for laundry; a box (2) for washing agents and substances; the first water conduits (3) controlled by the corresponding solenoid-operated valves (4) and ensuring delivery of a water flow into the box (2) for washing agents; the second water conduits ensuring delivery of water from the box (2) for washing agents into the tank (1); a drying air channel (with the following elements serially connected: suction hole (5) for air and water intake, opening into the tank lower part, a condensation device (6), the channel (7) for air flow from the condensation device outlet to the corresponding blower (8) and from there - into the air heating device (9) positioned downstream), means for water inlet into the condensation device and circulation of drying air flow inside the drum. The second water conduits are designed in the form of a unified conduit (10) for water transfer from the box (2) for washing agents into the condensation device (6). The condensation device has a partly arched crescent shape, its lower end positioned close to the suction hole (5) with the upper end - in the tank upper part. The condensation device shape and dimensions match the external profile of the tank (1) rear side with the unified conduit (10) inlet hole positioned within the intermediate spot (11) of the condensation device upper part between the lower end and the upper end.

EFFECT: design improvement.

19 cl, 5 dwg

The invention relates to preferably household combined washer / dryer, equipped with condensation device designed for condensation collected flow passing through the washing drum hot air that removes moisture contained in the drum wet clothes.

Widely known combined washing machine / dryer, equipped with the condensing unit for the drying air. These machines hot drying air circulates through a closed circuit through the drum, which is the subject washing and drying clothes.

Such a machine is described in the documents EP 1302586 and the EP 1199397. In General, they are produced in a standard washing machines containing tank, rotating inside a drum, box of detergent, a pipeline with a siphon for transmission of water flow, carrying cleanser/substance from the drawer into the tank, and more known controls.

For the function of drying of this machine also contains the channel of hot drying air containing the condensing unit with an entrance hole in the side wall of the tank, and the fan, the inlet air from the condensing unit and forcing it into a suitable heating unit where the air flow again hits the drum essentially through a hole load of Laundry.

It is known that the condensation of moisture contained in the stream flowing from inlet of the drying air that passes through the condensing unit and is blown by fans, by injection in the condensation device jet of cold water is usually taken from United with water device of water supply of the machine itself, and the injection is regulated by relevant solenoids.

A jet of cold water that can be injected into the condensing unit, directed opposite to the flow wet hot air supplied with a fan in the tank.

Due to the considerable temperature difference of injected water and moist air flow, moisture condenses and falls together with injected water down to the bottom of the condensation device, where through the hole gets into the tank.

Although this type of machine is quite effective, they have the disadvantage that the fiber and other residues, dropped out of the clothes in the washing process, constitute deposits and remain on the inner walls of the condensation device during the subsequent drying cycle, causing the blockage, as well as giving rise to a serious risk of fire if the fiber will come out of the condensing unit and fan and get to electric heating resistors, operating at high temperatures.

In any case, the extraction of such fibers or residues is partially washing process, when the level of the cleaning solution above the level of the inlet for suction of air. In fact, in this case part of the cleaning solution gets into the lower part of the condensing unit and washes it, taking advantage of fibre, which then come out at the sink solution.

However, this possibility of washing condensation device has two disadvantages:

- first used in recent years in the wash water quantity reduced more and more, due to the General requirements of energy saving and water, respectively, the level of solution in the tank is still decreasing, and it is not sufficient for washing condensation device that basically is located slightly above the level of the bottom of the washing machine;

- secondly, even if washing the lower part of the condensation device is implemented as described above, fibers, located in the upper part of the condensation device, you still will not be deleted, therefore, the above shortcomings, albeit to a lesser extent, but still.

In addition to these shortcomings, remains the more General lack of this type of machine, which consists in its high cost. In fact, in addition to the conduits for the flow of drying air, you want to add a special circuit water supply associated with a jet of cold water condensing.

This additional path for water, obviously, requires at least a corresponding pipeline of water supply and appropriate electrovalve cost in man-hours on the operation of the installation. Such additional costs likely to be significant, as specified in fact machine should also contain devices that are used only wash cycles, that is, siphon the line where the water comes out of the box for detergents in the tank, and the solenoid valves to regulate the flow of water coming from the water in a box for detergents.

Main objective of the present invention is to provide a combined washing machine / dryer condensation type that contains the cleanup tool from the fibers of the inner surface condensation device even at a very low level of the solution at the bottom of the tank.

In addition, this machine will be manufactured by well-known technologies, in particular, not only without any additional cost or expense, but on the contrary, should have a lower cost compared with conventional machines.

These tasks are solved in a combined washing machine / dryer condensation type, the characteristics of which are set out in the attached claims, and which is described below as a non-limiting example with reference to the drawings.

1 shows a diagram of the circuit for water and canal for flow drying air known a combined washing machine / dryer;

figure 2 - the same, but for the machine, corresponding to the present invention;

figure 3 and 3A - tank machine, corresponding to the invention, respectively rear view and side view;

figure 4 shows a simplified scheme of operation of the machine according to the invention.

Known combined washing machine / dryer, a scheme which is shown in figure 1, provides:

- rotating drum is intended for accommodation, washing and drying clothes (not shown);

- tank 1, inside of which is the specified drum;

- a box 2 for detergents, having different sections for detergents and other substances that are injected into the tank in the process of washing and drying;

- at least one pipeline for 3 managed through the solenoid 4 water from taps in the box for detergents;

- suction aperture 5 in the lower part of the side wall of the tank, which in the condensing unit 6 may enter separate streams of water and air, and condensation device 6 is performed with the opportunity of condensation of a moisture from passing through the air;

channel 7, which flow air moves from the condensing unit to the appropriate fan 8, from which the flow of air is blown into the container 9, containing one or more electric heating resistors (not shown);

- travel agent providing circulation flow drying air on the drum and Baku (not shown separately, as it is known, and is not related to the present invention).

In the famous machines pipeline connecting the box for detergents with tank and is usually supplied with a trap and a branch pipe for water supply in the condensation device are two distinct elements. In the present invention these elements combined in one pipeline 10, which starts from a box 2 (similar to well-known pipeline connecting the box to the tank) and is included in the condensation device 6 in the corresponding intermediate place 11.

It is clear that through a single pipeline 10 in the pot can be fed a stream of water mixed with detergent and other substances. The specified stream of water first served in the condensing unit, from the lower part of which it passes through the suction aperture 5 and gets to the bottom of the tank.

In addition, during the drying single pipeline 10 also provides water to the condensing unit 6 for performing controlled by solenoid 4 of the condensation process.

The first and main advantage of this solution is obvious: in fact, the flow of water flow in the condensing unit on the stage wash or rinse designed for washing the most part, the inner walls of the condensation device that removes fibres. This is because an intermediate position 11 is located in the condensation device that provides cleaning effect stream of water flowing down under the action of gravity on the inner wall of the condensing unit and washing and cleansing the most part of the specified wall.

The present invention also has a number of other advantages:

a) it is clear that simple pouring of water in the condensing unit, as a rule, is not enough to wash all the condensation device, as it is obvious that the current water washes down only the lower part of the inner wall of the condensing unit.

However, a particular variant of the invention allows to ensure the achievement of the first and main advantages: in fact, during the wash cycle fan 8 sucks in the air at the proper speed, so that the stream of water flowing condensation inside the device, after output from a single pipeline 10, meets resistance of air flow moving fan, resulting thanks to the opposite direction of the current downward flow of the water and the upward flow of air, water flow is converted into a stream of very small drops, wash the upper part of the condensation device, which is located downstream relative to the intermediate space 11.

Thus, those little drops essentially cover the entire inner wall of the condensation device, and therefore remove contained there fiber.

In addition, it is clear that you can significantly reduce the cost of manufacturing the machines, because it lacks: a pipeline to bring water from the condensing unit in the drying process, the appropriate electrovalve, the appropriate air gap and devices for installation.

b) the second advantage is the location of suction aperture 5 at the bottom of the tank, in a vertical arrangement of condensation device - the location of the intermediate space 11 for the inlet pipeline 10 in the upper part of the condensation device, so the water flow under the action of gravity goes from the pipeline 10 in the condensing unit 6, washing and cleaning much of its inner wall.

third advantage is that the implementation and the location of a single pipeline 10 that he constantly descends towards condensing unit 6; as a result, there is no need to siphon, as gained during the drying process steam, which in the famous machines out of the tank, even through the path, passing through designated to download water pipeline and mailbox for detergents, in the present invention almost caught and condenses inside the condensation device, consequently, a small part of a couple, who do not condense, automatically is sucked fan.

The result is completely solved the problem of out of steam out in the drying process. In addition, above the tank has only two holes that lead out:

- bottom port (not shown) for the release of the cleansing or proskauer solution;

- suction aperture 5, which connects the tank with the condensing unit 6.

So the machine is fitted with a tank, simple, cheap and, in particular, of such a machine couples do not come out.

g) as shown in figure 4, the fourth advantage is that during drying and when water is introduced into the condensing unit 6, fan 8 operates at two different speeds, while the first and slower the speed can also be zero (that is, the fan is not spinning), allows sprayed water "And" down in the condensing unit 6, and in the second, higher speed, part of the "In" water enters the condensing unit and absorbed in the opposite direction, so in part, located downstream from 11 suction aperture condensation device properly moves the air flow containing sprayed water; as a result, this part also carefully washed.

e) the fifth advantage is that the two speeds fan rotation are used interchangeably, however, they should be changed often enough to the flow of air and water had little effect on the fan.

(e) the sixth advantage relates to the initial period of the drying cycle. In fact in the specified initial period of time linen very wet and still quite cold, therefore, in this period of time is extracted from linen humidity is still very small and, therefore, no need for the circulation of a large number of drying air.

The advantage is that during the initial period, the fan operates at 8 corresponding reduced speed, obviously saves energy without significant deterioration drying efficiency.

g) seventh advantage is closely connected with the previous one: in fact decrease the fan speed 8 at the initial stage of drying is not the same for any type loaded linen, and is adjusted for each specific type of linen, so saving energy.

Of course period relating to any initial stage, may be associated with a particular cycle of drying with known and do not consider here the management tools.

C) eighth advantage is that in the car to ensure the passage of water in a box 2, where did it under the influence of gravity gets into a single pipeline 10, used the same tool that is used for pouring water in a box 2 during the wash cycle, and, in particular, uses the same solenoid 4 and the same line 3 for the water that passes from the water to the valve 4.

Obviously, such the work is provided by the famous management tool, which allows you to provide additional reduction of costs of production, as there is no need in the valve and the corresponding air gap to move the water in the condensing unit during the stage of drying.

s) as shown in figure 3 and 3A, the ninth advantage is based on the following simple considerations:

- the longer the condensing unit, the more moisture it condenses;

- condensation device must begin at the bottom and it should be finished about fan, that is at the top;

- for the specified location condensation device of sufficient length form must be curved, it should be close to Baku and, therefore, compliance with the external contour of the tank.

Taking into account all stated above it is evident that the optimal form of condensation device is a sickle shape, with suction aperture 5 is located at the bottom and the upper end of the condensing unit is located in the upper part of the tank. In addition, the "sickle" shape and size of the condensation devices must meet external circular path of the tank.

K) as shown in figure 3 and 3A, to achieve the maximum effective length of condensation device preferably intermediate 11 inlet pipe 10 was located in the upper part of the condensation device 6. In fact, 11 provides as appropriate length of the working segment of condensation device and vertical arrangement of the useful area condensation device that is necessary to ensure oppositely directed actual actions of sprayed water coming out of the pipeline 10, and flow drying air, suction fan and coming from the tank through the suction aperture 5.

l) another advantage relates to the controls described machine. It was found experimentally that it is desirable that during the wash cycle or preferably during the rinse cycle, fan 8 had a high rotation speed. Because the bottom of the tank is covered by water, the intake 5 obviously closed water tube, so that the air flow cannot pass through it.

However, lowering the pressure created by the fan inside the condensation device moves solution at the bottom of the tank up to the condensing unit and to move on this device, which further purifies its walls.

In addition, it is useful to step suction was launched during one of the stages rinse, as in this case, there is a greater number of more clean water.

In the best variant of the invention, which has the most important benefits fan is used, the speed of which you can adjust, even if this speed is higher than the rate, usually used in the process of drying in the famous car; however, these types of fans and appropriate management tools themselves are well known.

Another advantage relates to a particular mode of operation of the machine. Most users are increasingly appreciate and prefer to use the machine at night. Actually at this time the cost of energy less and, in addition, often the user is at home, which is not always possible for daytime wear.

However, the machine is running at night, can lead to the well known problem of noise, which may be too loud and so annoying. To solve this problem it is preferable that the fan worked with adjustable and, consequently, a very low speed of rotation.

This possibility, preferably connected with the reduction of power consumption heat resistance, leads to the machine as a whole with a reduced speed, in particular, with reduced fan speed. It is known that when the machine is running as a drying machine, a noise comes from the fan and flow drying air.

To achieve the possibilities of the machine work at night according to the present invention developed a specific program "night cycle, while the operation of the machine in General, slow, that means not only decrease the fan speed, but slow drum rotation and reduction of the average number supplied to heating resistors energy. This can be achieved either by reducing the supply voltage, or by intermittent supply voltage, the value of which is not reduced.

3. Machine of claim 1, characterized in that the fan (8) are designed to work on at least two different speeds during the drying cycle, and when one of the specified speed is ensured injection parts ("B"), the water coming in condensation device from a single pipeline (10), towards a part of the condensing unit located downstream from the intermediate space (11) of the condensing unit.

4. Machine according to claim 2, characterized in that the fan (8) are designed to work on at least two different speeds during the drying cycle, and when one of the specified speed is ensured injection parts ("B"), the water coming in condensation device from a single pipeline (10), towards a part of the condensing unit located downstream from the intermediate space (11) of the condensing unit.

5. Machine according to claim 3, wherein the different speed alternate many times.

6. Machine according to claim 4, wherein the different speed alternate many times.

7. Machine on any one of claims 1 to 6, wherein contains a management tool, designed to decrease fan speed during the initial stage of drying.

8. Machine according to claim 7, wherein management tool implemented with the possibility of automatic decrease fan speed during the initial stage of drying stored according to the instructions associated with the corresponding selected by the drying cycle.

9. Machine on any one of claims 1 to 6, 8, wherein contains a management tool, made with the possibility of control via a solenoid (4) the flow of water in the first pipeline (3) to supply water from the first pipeline (3) in the box (2), then - in a single pipeline (10), and then - in condensing unit according to the instructions stored associated with the corresponding selected by the drying cycle.

10. Machine according to claim 7, wherein contains a management tool, made with the possibility of control via a solenoid (4) the flow of water in the first pipeline (3) to supply water from the first pipeline (3) in the box (2), then - in a single pipeline (10), and then - in condensing unit, stored according to the instructions associated with the corresponding selected by the drying cycle.

11. Machine on any one of claims 1 to 6, 8, 10, wherein contains a management tool, made with the possibility of selective activation of fan (8) during the pre-selected time interval wash cycle, preferably in a pre-selected time interval stage rinsing.

12. Machine according to claim 7, wherein contains a management tool, made with the possibility of selective activation of fan (8) during the pre-selected time interval wash cycle, preferably in a pre-selected time interval stage rinsing.

13. Machine of claim 9, wherein contains a management tool, made with the possibility of selective activation of fan (8) during the pre-selected time interval wash cycle, preferably in a pre-selected time interval stage rinsing.

14. The machine at any one of claims 1-6, 8, 10, 12, 13, characterized in that it contains a management tool, designed to drive the fan at reduced speed, preferably simultaneously with the decrease in the average value of the energy supplied to the resistance to heat the air.

15. Machine according to claim 7, wherein contains a management tool, designed to drive the fan at reduced speed, preferably simultaneously with the decrease in the average value of the energy supplied to the resistance to heat the air.

16. Machine of claim 9, wherein contains a management tool, designed to drive the fan at reduced speed, preferably simultaneously with the decrease in the average value of the energy supplied to the resistance to heat the air.

17. Machine paragraph 11, wherein contains a management tool, designed to drive the fan at reduced speed, preferably simultaneously with the decrease in the average value of the energy supplied to the resistance to heat the air.

18. Machine paragraph 11, wherein during the wash cycle or rinse cycle fan (8) are designed to work with high speed so that the pressure drop caused by a fan (8) condensation inside the unit, have led to a shift in mix from the bottom of the tank up to the condensing unit (6) and to move on this device, providing additional purification of its walls.