JP2003079561A - dishwasher - Google Patents

Abstract

(57) [Summary] [PROBLEMS] In a dishwasher for washing dishes by circulating washing water, the washing water can be easily penetrated into the stains on the dishes to increase the apparent discharge pressure and activate the detergent. To increase the emulsifying and dispersing power and the cleaning performance. SOLUTION: Wash water in a washing tank 1 is circulated through a circulation path 8 by a washing pump 5 and sprinkled into the washing tank 1 from a nozzle 2. A magnet 9 is provided in the middle of the circulation path 8,
The magnet 9 applies a magnetic force to the washing water passing through the circulation path 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher for washing dishes by circulating wash water.

[0002]

2. Description of the Related Art Conventionally, this type of dishwasher has been constructed as shown in FIG. The configuration will be described below.

As shown in FIG. 6, the washing tank 1 is provided in the main body of the dishwasher, and a nozzle 2 for injecting washing water is rotatably provided substantially at the center of the inner bottom portion of the washing tank 1, and the washing tank 1 is also provided. A tableware basket 4 in which tableware 3 is placed is provided. The cleaning pump 5 circulates the cleaning water in the cleaning tank 1, and the heater 6 is used when heating the cleaning water to hot water.

The operation of the above configuration will be described. First,
Place the tableware 3 in the tableware basket 4 and store in the cleaning tank 1,
When the operation is started, a predetermined amount of water is supplied into the cleaning tank 1 from a water supply valve (not shown), and then the cleaning pump 5 is driven. The washing water in the washing tank 1 is sucked from the drainage port 7 by the washing pump 5, is pressure-fed to the nozzle 2, and is jetted vigorously by the rotating nozzle 2. With this wash water, a dish basket 4
The tableware 3 placed in is washed. After that, the cleaning water is again sucked from the drain port 7 by the cleaning pump 5, and the above operation is repeated. When the cleaning water enters the cleaning tank 1 in the process of circulating the cleaning water, it is heated by the heater 6. The dishes 3 placed in the dish basket 4 are washed by repeating the circulation of the wash water.

[0005]

In order to wash the dishes 3 with such a conventional dishwasher, the dirt on the dishes 3 should have sufficient penetrating power to allow the wash water to swell into the rice. Or, it requires a high discharge pressure to wash off,
Detergents such as fat and egg stains need to react with the stains and cause a chemical reaction to decompose the stains or to emulsify and disperse them. In addition, it is necessary to disintegrate stains when washing stains such as tea astringent.

However, it takes a long time for the washing water to sufficiently penetrate into the dirt, and the washing pump 5 needs to be upsized in order to obtain a high discharge pressure. In order to promote it, it is necessary to activate the enzyme component of the detergent. Further, since the tap water used for washing water is usually on the oxidizing side, it is necessary to change the washing water to the reducing side in order to efficiently remove stains such as tea astringent.

The present invention solves the above-mentioned conventional problems by making it easier for cleaning water to permeate into stains on tableware, increasing the apparent discharge pressure, and activating the detergent to increase the emulsifying and dispersing power. The purpose is to improve the cleaning performance.

[0008]

In order to achieve the above object, the present invention is configured such that the cleaning water in the cleaning tank is circulated through a circulation path by a cleaning pump, and is sprayed from the nozzle into the cleaning tank. A magnet is provided in the middle of the path so that the magnet exerts a magnetic force on the wash water passing through the circulation path.

As a result, when the washing water passes through the magnetic field, the order of motion of water molecules is disturbed and the water is activated,
As a result, the cleaning water can easily penetrate into the stains on the dishes, the apparent discharge pressure can be increased, and the detergent can be activated to increase the emulsifying and dispersing power, which can improve the cleaning performance. .

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention comprises a nozzle for spraying cleaning water in a cleaning tank, and a cleaning pump for circulating the cleaning water in the cleaning tank through a circulation path, A magnet is provided in the middle of the circulation path so that the magnet exerts a magnetic force on the wash water passing through the circulation path. When the wash water passes through the magnetic field of the magnet, there are several kinds of tap water. Mono ions are present, but these cations and anions move in opposite directions. Moreover, it usually takes 3
~ 4 liters of tap water is used, and this small amount of water is circulated and washed at a high flow rate of 50 to 60 liters per minute.
Therefore, the washing water passes between the magnetic field hundreds of times and the magnetic field during the washing time of 10 to 20 minutes. Therefore,
The movement is amplified and the effect is enhanced. As a result, the order of hydrogen ions and oxygen ions in water molecules in water is disturbed, the bonds of water molecules are broken, the clusters become smaller, the surface tension decreases, and as a result, the penetrating power of the washing water rises and Water easily penetrates into the dirt. This means that the discharge pressure required to remove the dirt may be smaller than in the conventional case, and the discharge pressure apparently rises.
In addition, this also causes a lot of ion polarization and collision due to the movement of positive and negative ions in the magnetic field. As a result, activation of water occurs, leading to activation of the enzyme component of the detergent and the like, and also to increase emulsifying and dispersing power. Also, water with small clusters has a reducing property, which changes washing water to a reducing side, and as a result, iron tannate, which is a component of tea astringent stain, is decomposed and stains can be easily removed. Moreover, in the case of water containing a large amount of metal ions such as iron, for example, trivalent iron ions are reduced to divalent iron ions and are easily chelated, and dirt on the surface of tableware can be easily removed. To do. Therefore,
The cleaning performance can be improved. In addition, the fact that water molecules move actively means that heat is easily transferred, and the thermal conductivity also decreases. This can increase the heating efficiency of the cleaning water by the heater and save energy during cleaning.

According to a second aspect of the present invention, in the first aspect of the present invention, the magnet is provided in the middle of the circulation path connecting the cleaning tank and the nozzle, and the flow velocity of the cleaning water flowing through the circulation path. When used in the circulation path that returns from the nozzle to the cleaning tank, it moves in the open space of the cleaning tank, which increases the cross-sectional area of the circulation path and slows the flow rate of the cleaning water. When used for, the cross-sectional area of the circulation path is small, and therefore the speed becomes faster. Therefore, according to the MHD principle of magnetohydrodynamics, the electron exciting action is increased in proportion to the flow velocity and the strength of the magnetic field, so that the cleaning performance can be further improved.

According to a third aspect of the present invention, in the invention according to the first or second aspect, the magnet is provided immediately before the inlet on the upstream side of the cleaning pump, and the cleaning water is provided immediately before the inlet of the cleaning pump. Since the flow of is turbulent due to the generation of vortex,
The effect of turbulence is added, the movement of ions in water becomes more active, and the cleaning performance can be further improved.

The invention according to claim 4 is the above-mentioned claim 1.
In the invention as set forth in claim 3, the circulation path has a pipeline through which the cleaning water flows, and another magnet is provided in the pipeline so as to face a magnet provided on the outer wall of the pipeline so as to sandwich the pipeline. Since the distance between the magnets can be shortened and the force of the magnetic field can be strengthened, and the cross-sectional area of the duct where the magnets are attached becomes smaller, the flow velocity becomes faster. Therefore, the electron exciting action is enhanced, and the cleaning performance can be further improved.

The invention according to claim 5 is the above-mentioned claim 1
In the invention described in 4, the circulation path is formed by branching in the middle to form a branch portion, and a magnet is provided at the branch portion. Even if the diameter of the branch passage is reduced, the cross-sectional area of the circulation path is reduced. Therefore, since the distance between the magnets can be shortened while the flow velocity is not slow and the flow velocity is constant, the magnetic force can be increased, the electron excitation action can be enhanced, and the cleaning performance can be further improved.

The invention according to claim 6 is the above-mentioned claim 1.
In the invention described in 5, the magnet and the magnetic body are arranged to face each other,
Moreover, the magnets are arranged so that the polarities of the magnets facing each other across the circulation path are different, and the polarities of the magnets on the same side are the same.At first glance, the magnetic field becomes weak, but the magnetic field lines of the magnetic field flow. The presence of not only one direction but also multiple directions can disturb the order of motion of water molecules more efficiently, causing polarization and collision of ions in water, activating water, It can minimize clusters, lower surface tension, increase osmotic force, deprive oxygen, and change wash water to the reducing side. Therefore, the efficiency can be improved even more efficiently, the cleaning water can be affected, and the cleaning performance can be improved.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. The same components as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted.

(Embodiment 1) As shown in FIG. 1, the circulation path 8 connects the cleaning tank 1 and the nozzle 2 via a cleaning pump 5, and drives the cleaning pump 5 to drive the cleaning tank 1 to have the same structure. The cleaning water is circulated, and a magnet 9 is provided in the middle of the circulation path 8 so that the magnet 9 exerts a magnetic force on the cleaning water passing through the circulation path 8. Where the magnet 9
May be a permanent magnet or an electromagnet.

The operation of the above configuration will be described. First,
Place the tableware 3 in the tableware basket 4 and store in the cleaning tank 1,
When the operation is started, a predetermined amount of water is supplied into the cleaning tank 1 from a water supply valve (not shown), and then the cleaning pump 5 is driven. The washing water in the washing tank 1 is sucked from the drainage port 7 by the washing pump 5, is pressure-fed to the nozzle 2, and is jetted vigorously by the rotating nozzle 2. With this wash water, a dish basket 4
The tableware 3 placed in is washed. After that, the washing water is again sucked from the drainage port 7 by the washing pump 5, and the above operation is repeated, and the dishes 3 are washed by this repetition.

At this time, when the wash water passes through the circulation path 8 to which the magnet 9 is attached, the wash water is affected by the magnetic force of the magnet 9. When the wash water is subjected to the magnetic force, many kinds of ions are present in the tap water, so that many kinds of cations and anions in the wash water move in opposite directions.

Furthermore, tap water of 3 to 4 liters is usually used for washing in the dishwasher, and this small amount of water is circulated and washed at a high flow rate of 50 to 60 liters per minute. For this reason, during the washing time of 10 to 20 minutes, the washing water passes between the magnetic field generated by the magnet 9 hundreds of times.
Therefore, the motion is further amplified and the effect is enhanced.

As a result, the order of hydrogen ions and oxygen ions of water molecules in water is disturbed, the bonds of water molecules are broken, the clusters become smaller, the surface tension is lowered, and as a result, the penetrating power of the washing water is increased. Water easily penetrates into stains on tableware. This means that the discharge pressure required to remove the dirt may be smaller than in the conventional case, and the discharge pressure apparently rises.

This also means that the positive ions and the negative ions in the magnetic field move, so that a lot of polarization and collision of the ions occur. As a result, activation of water occurs, leading to activation of the enzyme component of the detergent and the like, and also to increase emulsifying and dispersing power. Also, water with small clusters has a reducing property, which changes washing water to a reducing side, and as a result, iron tannate, which is a component of tea astringent stain, is decomposed and stains can be easily removed.

In addition, in the case of water containing a large amount of metal ions such as iron, trivalent iron ions are reduced to divalent iron ions and are easily chelated, and stains on the surface of tableware are removed. Also easy to drop. Therefore, the cleaning performance can be improved.

Further, the active movement of water molecules means that heat is easily transferred, and the thermal conductivity also decreases. This can increase the heating efficiency of the cleaning water by the heater and save energy during cleaning.

Further, since the magnet 9 is provided in the middle of the circulation path 8 connecting the cleaning tank 1 and the nozzle 2, when the flow velocity of the cleaning water flowing through the circulation path is used in the circulation path returning from the nozzle 2 to the cleaning tank 1. Since it moves in the open space of the cleaning tank 1, the cross-sectional area of the circulation path becomes large and the flow rate of the cleaning water becomes slow. However, when used for the circulation path 8 connecting the cleaning tank 1 and the nozzle 2, Since the cross-sectional area is small, it becomes faster, and according to the MHD principle of magnetohydrodynamics, since the electron exciting action becomes higher in proportion to the flow velocity and the strength of the magnetic field, the improvement effect that the cleaning performance is further improved can be obtained.

(Embodiment 2) As shown in FIG. 2, a magnet 9a is used.
Is provided immediately before the inlet on the upstream side of the cleaning pump 5 connected to the circulation path 8. The other structure is the same as that of the first embodiment.

The operation of the above configuration will be described. In addition,
Since the basic operation of the dishwasher is the same as that of the above-mentioned first embodiment, the explanation is omitted.

The washing water passes through the circulation path 8 and the washing pump 5
When entering, the flow of the washing water immediately before the inlet of the washing pump 5 is turbulent due to the generation of vortex. Here, when the action of the magnetic force of the magnet 9a is applied, the effect of turbulence is added, and the movement of the ions in the water becomes more active. Therefore, the cleaning performance can be further improved.

(Embodiment 3) As shown in FIG. 3, a magnet 9b is used.
Is provided on the outer wall of the pipeline 10 that constitutes the circulation path 8b.
It is provided so as to sandwich 0. The magnet 11 is provided in the conduit 11 so as to face the magnet 9b. The other structure is the same as that of the first embodiment.

The operation of the above configuration will be described. In addition,
Since the basic operation of the dishwasher is the same as that of the above-mentioned first embodiment, the explanation is omitted.

By providing the magnet 11 in the conduit 10 so as to face the magnet 9b, the distance between the magnets 9b and 11 is shortened and the magnetic field force is increased. In addition, the magnet 9b,
Since the cross-sectional area of the pipe 10 at the location where the pipe 11 is attached is reduced, the flow velocity is increased, so that the electron exciting action is increased and the cleaning performance can be further improved.

(Embodiment 4) As shown in FIG. 4, the circulation path 8c is branched midway to form a branch portion 12, and the branch portion 1
2 is provided with a magnet 9c. The other structure is the same as that of the first embodiment.

The operation of the above configuration will be described. In addition,
Since the basic operation of the dishwasher is the same as that of the above-mentioned first embodiment, the explanation is omitted.

Since the cross-sectional area of the circulation path 8c can be secured even if the pipe diameter of the branch portion 12 is reduced, the distance between the magnets 9c can be shortened while the flow velocity does not slow down and the flow velocity remains constant, and the magnetic force of the magnet 9c is reduced. Becomes stronger. Therefore, the action of exciting electrons is enhanced, and the cleaning performance can be further improved.

(Embodiment 5) As shown in FIG. 5, a magnet 9d
And the magnetic body 12 are opposed to each other, and the magnets 9e facing each other across the circulation path 8d have different polarities, and the magnets 9 on the same side.
The magnets 9d and 9e are arranged so that the polarities of d and 9e are the same. The other structure is the same as that of the first embodiment.

The operation of the above configuration will be described. In addition,
Since the basic operation of the dishwasher is the same as that of the above-mentioned first embodiment, the explanation is omitted.

By arranging the magnets 9d and 9e such that the polarities of the magnets 9d and 9e on the same side are the same, the magnetic body 12 and the adjacent magnets 9d and 9e have different polarities, and at first glance, the magnetic flux density is weak. However, the presence of multiple magnetic field lines in the magnetic field not only in one direction, but more efficiently disturbs the order of motion of water molecules, causing polarization and collision of ions in water, It can be activated to minimize water clusters, reduce surface tension, increase osmotic power, deprive oxygen, and change wash water to the reducing side. Therefore, the cleaning performance can be further improved.

[0038]

As described above, according to the invention described in claim 1 of the present invention, the nozzle for spraying the cleaning water in the cleaning tank and the cleaning pump for circulating the cleaning water in the cleaning tank through the circulation path. And a magnet is provided in the middle of the circulation path, and the magnet is configured to exert a magnetic force on the cleaning water passing through the circulation path. The order is disturbed, polarization and collision of ions in water occur, water can be activated, water clusters are minimized, surface tension is lowered, and as a result, osmotic force is increased. In addition, the activation of water also causes the activation of the enzyme component of the detergent and the like, which also raises the emulsifying and dispersing power. In addition, water with small clusters has a reducing property and changes the wash water to the reducing side, making it easier to remove stains such as brown astringency. Moreover, in the case of water containing a large amount of metal ions such as iron, it is easily reduced and chelated, and stains on the surface of the tableware are easily removed. Therefore, the cleaning performance can be improved. Further, the water molecules are actively moved, so that the thermal conductivity is lowered, the heating efficiency of the washing water can be increased, and the energy can be saved during the washing.

Further, according to the second aspect of the invention, since the magnet is provided in the middle of the circulation path connecting the cleaning tank and the nozzle, the flow rate of the cleaning water flowing through the circulation path returns from the nozzle to the cleaning tank. Since the cross-sectional area of the circulation path is smaller than that of the above, the speed is increased, and the electron exciting action is increased, so that the cleaning performance can be further improved.

According to the third aspect of the invention, since the magnet is provided immediately before the inlet on the upstream side of the washing pump, the flow of the washing water immediately before the inlet of the washing pump is disturbed, and the ions in the water are The movement becomes more active, and the cleaning performance can be further improved.

According to the fourth aspect of the invention, the circulation path has a pipe through which the cleaning water flows, and is arranged so as to face a magnet provided on the outer wall of the pipe so as to sandwich the pipe. Since another magnet is provided in the conduit, the distance between the magnets can be shortened, and since the flow velocity is increased, the electron exciting action is increased and the cleaning performance can be further improved. .

According to the fifth aspect of the present invention, the circulation path is branched in the middle to form a branch portion, and the magnet is provided at the branch portion. Therefore, even if the diameter of the branch passage is reduced. ,
Since the cross-sectional area of the circulation path can be secured, the distance between the magnets can be shortened while the flow velocity is not slow and the flow velocity is constant, so that the magnetic force can be strengthened, the excitation effect of electrons is enhanced, and the cleaning performance is further improved. be able to.

According to the invention described in claim 6, the magnet and the magnetic body are arranged to face each other, the polarities of the magnets facing each other across the circulation path are different, and the polarities of the magnets on the same side are different. Since the magnets are arranged so that they are aligned with each other, the magnetic field becomes weak at first glance, but the existence of multiple directions of the flow of magnetic field lines in the magnetic field makes it possible to more efficiently disturb the order of motion of water molecules, It can polarize and collide ions in water, activate water, minimize water clusters, reduce surface tension, increase osmotic force, deprive oxygen, and change wash water to the reducing side. Therefore, the efficiency can be improved even more efficiently, the cleaning water can be affected, and the cleaning performance can be improved.

[Brief description of drawings]

FIG. 1 is a sectional view of a dishwasher according to a first embodiment of the present invention.

FIG. 2 is a side view of a main part of the dishwasher according to a second embodiment of the present invention with a part thereof cut away.

FIG. 3 is a sectional view of the essential parts of a dishwasher according to a third embodiment of the present invention.

FIG. 4 is a sectional view of a main part of a dishwasher according to a fourth embodiment of the present invention.

FIG. 5 is a sectional view of essential parts of a dishwasher according to a fifth embodiment of the present invention.

FIG. 6 is a sectional view of a conventional dishwasher.

[Explanation of symbols]

1 cleaning tank 2 nozzles 5 washing pump 8 circulation routes 9 magnets

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Katsuhiko Sumiya             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. (72) Inventor Kamisaki saki Masayoshi             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. (72) Inventor Yu Taniguchi             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. F-term (reference) 3B082 CC00

Claims (6)

[Claims] 1. A nozzle for spraying cleaning water in a cleaning tank, a cleaning pump for circulating the cleaning water in the cleaning tank through a circulation path, a magnet is provided in the middle of the circulation path, and the magnet is used to A dishwasher configured to exert a magnetic force on the wash water passing through the circulation path. 2. The dishwasher according to claim 1, wherein the magnet is provided in the middle of a circulation path connecting the washing tank and the nozzle. 3. The dishwasher according to claim 1, wherein the magnet is provided immediately before the inlet on the upstream side of the washing pump. 4. The circulation path has a pipeline through which cleaning water flows, and another magnet is provided in the pipeline so as to face a magnet provided on the outer wall of the pipeline so as to sandwich the pipeline. Claim 1
Dishwasher according to any one of 3 to 3. 5. The dishwasher according to claim 1, wherein the circulation path is branched in the middle to form a branch portion, and a magnet is provided at the branch portion. 6. A magnet and a magnetic body are arranged to face each other, and the magnets are arranged such that the magnets facing each other across the circulation path have different polarities and the polarities of the magnets on the same side are the same. ~ The dishwasher according to any one of 5 to 5.