JPH0712064U - Dishwasher - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a dishwasher having a short total processing time, particularly, a short cleaning time and a short rinsing time. [Arrangement] A temperature raising section 21 provided with a heater 20 for preheating heating water or the like in a flow path connecting the water supply port 22 and the cleaning tank 11.
To provide. Then, one end is provided with the water supply port 22 and the temperature raising unit 2.
1 is provided with a relay pipe 23 that communicates with a flow channel located between the temperature raising unit 21 and the cleaning tank 11 and forms a circulation flow channel. To do. Further, the discharge pipe 15 and the nozzle 1 are provided with a flow path whose one end communicates with the other end of the relay pipe 23 and whose other end communicates with the cleaning tank 1.
It is formed by 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dishwasher, and more particularly to a dishwasher that sprays heated washing water and rinsing water to wash and rinse.

[0002]

[Problems to be solved by conventional techniques and devices]

 Generally, a dishwasher performs cleaning and rinsing by injecting washing water and rinsing water from nozzles into the dishes stored in the washing tub, and then circulating the collected washing water and re-injecting it into the eating device. It is for cleaning and the like. By the way, if the temperature of washing water and rinsing water is high, the washing and rinsing effect is improved, and the processing time required for washing and the like is shortened. For this reason, in a conventional dishwasher, for example, a heater is arranged at the bottom of the washing tank, and after pouring a large amount of washing water into the washing tank, the washing water is sprayed from the washing nozzle at the same time. The cleaning water was heated by the heater.

However, in the above-mentioned method, since it takes time for the cleaning water having a low initial temperature to reach the temperature at which the desired cleaning effect is obtained, the desired cleaning effect cannot be obtained early. For this reason, a dishwasher has been proposed in which a full amount of washing water with a low initial temperature is injected and then washing is performed while heating. However, in this dishwasher, the washing time and rinsing time are effective. There is a problem that it cannot be shortened to.

In view of the above problems, it is an object of the present invention to provide a dishwasher that can effectively reduce the total processing time.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the dishwasher according to the present invention is a dishwasher which performs washing and rinsing by spraying washing water or rinsing water from a nozzle onto the dishes stored in the washing tank of the dishwasher body. In the machine, there is provided a heating means for heating the washing water and the like, and a temperature raising unit for heating the washing water and the like before the water is poured into the washing tank is provided outside the washing tank.

In addition, the dishwasher according to the present invention is a dishwasher main body in which the dishwasher is housed in a washing tank, and the washing water or the soot which is injected from a water supply port through a passage communicating with the washing tank. In a dishwasher in which water is sprayed from a nozzle for washing and rinsing, the collected washing water is circulated and heated by a heating means, and the nozzle is sprayed again to wash and rinse. A temperature raising unit provided with a heating means for preheating the washing water and the like is provided in a flow path connecting the water supply port and the cleaning tank, and one end is located between the water supply port and the temperature raising unit. A relay pipe communicating with the flow passage and having the other end communicating with the flow passage located between the temperature raising unit and the cleaning tank is provided to form a circulation flow passage, and one end is connected to the relay pipe. To form a flow path that communicates with the other end of the It may be one.

Further, the temperature raising unit may have a reserve tank for storing preheated rinsing water for high temperature rinsing.

[0008]

[Action]

 Therefore, according to claim 1 of the present invention, since the heating means of the temperature raising unit heats the wash water and the rinse water before injecting them into the wash tank, the wash and rinse treatment can be performed from the beginning with the wash water having a high temperature. You can do it. Further, according to claims 2 and 3, since the washing water and the like are preheated, the washing water and the like reach the temperature at which desired washing and rinsing effects can be obtained earlier than in the conventional example.

[0009]

【Example】

 Next, an embodiment of the dishwasher according to the present invention will be described with reference to the accompanying drawings of FIGS. 1 to 6. In the dishwasher according to the present embodiment, as shown in FIG. 1, a storage basket 13 storing the dishes 12 is arranged in a cleaning tank 11 of the main body 10 of the washing machine, and a storage basket 13 is provided below the storage basket 13. The tableware 12 is provided with a nozzle 14 for spraying washing water and rinsing water while rotating. The nozzle 14 is connected to a pump 17 driven by a motor 16 via a discharge pipe 15 penetrating the bottom surface of the cleaner body 10. Further, a water reservoir 18 for collecting cleaning water or the like sprayed from the nozzle 14 is provided on the bottom surface of the washer body 10, and the water reservoir 18 is connected to the pump via a first switching valve 19. It is connected to 17 and a circulation channel can be formed. Further, the first switching valve 19 is connected to the water supply port 22 via a temperature raising section 21 having a heater 20 built therein, and is also connected to the water supply port 22 via a relay pipe 23 so that a circulation flow path is formed. It can be formed. A second switching valve 24 is provided between the water supply port 22 and the relay pipe 23 so as to selectively switch between the temperature raising unit 21 and the relay pipe 23. Further, the temperature raising section 21 is connected via an opening / closing valve 25 to a backup tank 26 for storing high-temperature rinsing water, while the water holding section 18 is connected via a drainage pump 27 to a drainage port. 28 is connected.

Next, the high temperature cleaning step, the room temperature rinsing step, and the high temperature rinsing step, which are the processing steps of the dishwasher having the above-described configuration, will be sequentially described.

The high-temperature washing step is the first processing step for washing off the stains on the dishes, and as shown in FIG. 1, the first switching valve 19 brings the water storage section 18 and the temperature raising section 21 into communication with each other, and 17 and the relay pipe 23 are in communication with each other. Then, the second switching valve 24 makes the water supply port 22 and the temperature raising unit 21 communicate with each other, and makes the water supply port 22 and the relay pipe 23 closed. At this time, the on-off valve 25 closes the reserve tank 26 for hot rinse water.

Therefore, the cleaning water that has flowed in from the water supply port 22 is heated by the heater 20 of the temperature raising unit 21, rises in temperature, and flows into the cleaning tank 11 from the water reservoir 18. Then, when a predetermined amount of cleaning water is stored in the cleaning tank 11, the second switching valve 24 is switched, the water supply port 22, the temperature raising unit 21 and the relay pipe 23 are closed, and the temperature raising unit 21 is relayed. The pipe 23 is connected to form a circulation flow path (FIG. 2). Then, the preheated cleaning water is sprayed from the nozzle 14 to the dishes 12 through the pump 17 and the discharge pipe 15 to clean the cleaning water, and the cleaning water collected in the water reservoir 18 is then heated by the heater 20 of the temperature raising unit 21. It is heated and returned to the pump 17 via the relay pipe 23, is again jetted from the nozzle 14 via the discharge pipe 15, and this operation is repeated. Then, after the cleaning water reaches a temperature at which a desired cleaning effect is obtained, the first switching valve 19 is switched to make the water reservoir 18 and the pump 17 communicate with each other (FIG. 3), and the pump 17, the discharge port 15, High-temperature cleaning is performed by circulating cleaning water that has reached a predetermined temperature in the order of the nozzle 14, the cleaning tank 11, and the water reservoir 18.

In this high temperature cleaning step, instead of heating the cleaning tank 11 at the same time as in the conventional example after injecting a large amount of cleaning water into the cleaning tank 11, the cleaning tank 11 is cleaned when the cleaning water is injected. Since the water is preheated by the heater 20, the initial temperature of the washing water is higher than that of the conventional example. Therefore, not only can it be washed with high-temperature washing water from the beginning, but the washing water reaches the temperature at which the desired washing effect can be obtained earlier than in the conventional example, which has the advantage of shortening the processing time of the high-temperature washing process. .

On the other hand, while the cleaning process is being performed with the cleaning water that has reached the predetermined temperature, the second switching valve 24 is switched so that the water supply port 22 and the temperature raising unit 21 are in communication with each other, and the opening / closing valve is also open. 25 is opened and the temperature raising part 21 and the auxiliary tank 26 are in communication with each other (FIG. 4). Then, of the rinse water for high-temperature rinse that is poured into the cleaning tank 11 and used, one-tenth of the full amount of rinse water flows into the temperature raising section 21 from the water supply port 22, and the temperature raising section 21 After the rinse water preheated by the heater 20 is pushed up by the water pressure of the newly flowing rinse water and flows into the spare tank 26, the second switching valve 24 is switched (Fig. 5), and the temperature raising unit 21 is newly replaced. The rinse water that has flowed into the heater is heated by the heater 20. Then, when the newly introduced rinse water reaches a predetermined temperature, the second switching valve 24 is switched, and similarly to the above, the rinse water for high temperature rinse is supplied from the water supply port 22 to the temperature raising unit 21 for 10 minutes. 1 is newly injected, and the rinse water which has been heated is stored in the auxiliary tank 26. After that, the same operation is performed 7 times in total during the high temperature cleaning step, and the full amount of 70% of the rinse water heated by the preheating is stored in the spare tank 26.

Then, the seventh preheating is completed, the second switching valve 24 is switched, the water supply port 22 and the temperature raising part 21 and the relay pipe 23 are closed, and the on-off valve 25 is closed. After that (FIG. 3), the above-mentioned high temperature cleaning is completed, and the cleaning water is discharged from the drain port 28 via the drain pump 27 connected to the water reservoir 18.

After the above-described high temperature cleaning process is completed, the room temperature rinsing process is continuously performed. That is, as in the high temperature cleaning step, the first switching valve 19 is switched to bring the water reservoir 18 and the temperature raising portion 21 provided in the washing tank 11 into communication with each other, and the pump 17 and the relay pipe 23 into communication with each other. The second switching valve 24 is switched to bring the water supply port 22 and the temperature raising unit 21 into communication with each other. At this time, the on-off valve 25 is closed (FIG. 1). Therefore, rinse water for rinsing at room temperature flows in from the water supply port 22, is heated by the heater 20 of the temperature raising unit 21, and is stored in the cleaning tank 11. Then, when the rinse water becomes full, the first switching valve 19 is switched, the pump 17 and the water reservoir 18 are brought into communication with each other, the second switching valve 24 is switched, and the water supply port 22 and the temperature rise The part 21 and the relay pipe 23 are closed (FIG. 3). Then, the pump 17 sprays the rinsing water from the nozzle 14 to the dishes 12 through the discharge pipe 15 to perform rinsing treatment, and the rinsing water collected in the water reservoir 18 passes through the pump 17 and the discharge pipe 15. It is jetted again from the nozzle 14 and circulated, and a room temperature rinsing process is performed.

During this normal temperature rinsing process, the on-off valve 25 is opened to bring the temperature raising unit 21 and the auxiliary tank 26 into communication with each other, and the second switching valve 24 is switched to connect the water supply port 22 and the temperature raising unit 21. Make communication (Fig. 4). Then, 1/10 of the full amount of rinse water flows into the temperature raising section 21 from the water supply port 22, and the rinse water for high temperature rinsing which has been preheated in the temperature raising section 21 and has increased in temperature newly flows in. After being pushed up to the spare tank 26 by the water pressure of the water, the second switching valve 24 is switched (Fig. 5). Then, after the on-off valve 25 is closed (FIG. 3), the first normal temperature rinsing step is completed, and the rinsing water for normal temperature rinsing is discharged from the drain port 28 via the drain pump 27 connected to the water reservoir 18. Is discharged. In the normal temperature rinsing step, the same rinsing treatment as described above is performed three times in total, and the rinsing water for high temperature rinsing heated by preheating is filled in the preliminary tank 26 for each rinsing treatment. As a result, when the room temperature rinsing step is completed, the full amount of the rinsing water for high temperature rinsing, which has been heated by the preliminary heating, is stored in the auxiliary tank 26.

In this room temperature rinsing step, since preheating is performed by the temperature raising unit 21 when rinsing water is injected into the cleaning tank 11, it is possible to perform rinsing with rinsing water having a high initial temperature, which is an advantage of high rinsing efficiency. There is.

In the high temperature rinsing step, the first switching valve 19 is switched to bring the temperature raising section 21 and the cleaning tank 11 into communication with each other, and the pump 17 and the relay pipe 23 are brought into communication with each other, and then the opening / closing valve 25 is opened ( 6), after the rinsing water for high temperature rinsing stored in the spare tank 26 flows out and flows into the cleaning tank 11, the on-off valve 25 is closed. Then, by driving the pump 17, the rinse water is sprayed from the nozzle 14 through the discharge pipe 15 to rinse, and the rinse water collected in the water reservoir 18 is heated by the heater 20 of the temperature raising unit 21, and the relay pipe 23 It is returned to the pump 17 through and is circulated. Then, after the rinsing water reaches the temperature at which the desired rinsing effect is obtained, the first switching valve 19 switches to bring the water reservoir 18 and the pump 17 into communication (Fig. 3), and the rinsing water circulates. Continue hot rinse.

Next, when the high temperature rinsing process is completed, the first switching valve 19 is switched to bring the water reservoir 18 and the temperature raising portion 21 into communication with each other, and after the pump 17 and the relay pipe 23 are brought into communication with each other. (FIG. 2), a series of processes is completed by discharging the soot water from the discharge port 28 via the drainage pump 27 connected to the water reservoir 18.

In this high-temperature rinsing step, when pouring the rinsing water into the cleaning tank 11, the full amount of rinsing water that has been preheated by the heater 20 is used. Not only can it be performed, but the rinsing water reaches the temperature at which the desired rinsing effect can be obtained in a shorter time than the conventional example, and there is an advantage that the rinsing processing time can be saved.

In the above-described embodiment, the cleaning water is injected into the cleaning tank 11 via the water reservoir 18, but not limited to this, the cleaning water may be injected from the nozzle 14 via the discharge pipe 15. A flow path may be formed. Further, in the above-mentioned high temperature cleaning step, the case where the rinsing water for high temperature rinsing is preheated and stored in seven times has been described, but the present invention is not necessarily limited to this. By appropriately selecting the size, a sufficient amount of the rinse water for high temperature rinsing may be preheated and stored once. Further, the operation of preheating and storing the rinse water for high temperature rinsing may be completed only by the high temperature washing step or the room temperature rinsing step. Then, the temperature of the washing water, etc. is raised to a temperature at which the desired cleaning and rinsing effect can be obtained by heating once in the temperature raising section provided outside the washing tank, and the heated washing water etc. is directly put into the washing tank. Injection, cleaning and rinsing may be performed.

[0023]

[Effect of device]

 As is clear from the above description, according to the dishwasher of claim 1 of the present invention, the dishes are washed and rinsed by the washing water and the rinsing water which are heated in the temperature raising section to raise the temperature. Therefore, a high washing and rinsing effect can be obtained, the washing and rinsing time can be saved, and a dishwasher with a short total processing time can be obtained. Further, according to claim 2, since the washing water and the rinsing water are preheated by the heating means, not only a high washing and rinsing effect can be obtained from the beginning, but also a temperature which can obtain a desired washing effect can be obtained conventionally. Wash water etc. reaches faster than usual. Therefore, the washing and rinsing time of the dishes can be saved, and a dishwasher with a short total processing time can be obtained as described above. Furthermore, according to claim 3, since the full amount of high-temperature rinse water preheated in the temperature raising section can be stored in the spare tank in advance, the high-temperature rinse treatment time can be further shortened and the total treatment time can be shortened. There is an effect that a dishwasher can be obtained.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of a dishwasher according to the present invention.

FIG. 2 is a schematic view showing an embodiment of a dishwasher according to the present invention.

FIG. 3 is a schematic view showing an embodiment of the dishwasher according to the present invention.

FIG. 4 is a schematic view showing an embodiment of a dishwasher according to the present invention.

FIG. 5 is a schematic view showing an embodiment of a dishwasher according to the present invention.

FIG. 6 is a schematic view showing an embodiment of the dishwasher according to the present invention.

[Explanation of symbols]

10 ... dishwasher main body, 11 ... washing tank, 12 ... dishware, 1
3 ... Tableware basket, 14 ... Nozzle, 15 ... Discharge pipe, 17 ... Pump, 19 ... First switching valve, 20 ... Heater, 21 ... Temperature raising part, 22 ... Water supply port, 23 ... Relay pipe, 24 ... Second switching valve,
25 ... Open / close valve, 26 ... Spare tank.

Claims (3)

[Scope of utility model registration request] 1. A dishwasher in which washing water or rinsing water is sprayed from a nozzle to wash and rinse the dishes stored in the washing tank of the dishwasher body, and a heating means for heating the washing water is provided. The dishwasher is characterized in that a temperature raising unit for heating washing water or the like before pouring into the washing tank is provided outside the washing tank. 2. Washing or rinsing is performed by spraying the washing water or rinsing water injected from a water supply port through a flow path communicating with the washing tub into a dish stored in the washing tub of the main body of the dishwasher from a nozzle. In a dishwasher that performs cleaning and rinsing by circulating the collected wash water and heating by a heating means, a flow path that connects the water inlet and the wash tank in a dishwasher that is sprayed again from the nozzle to wash and rinse A temperature raising section provided with a heating means for preheating wash water and the like is further provided, and one end communicates with a flow path located between the water supply port and the temperature raising section, and the other end is the above-mentioned one. A circulation pipe is formed by providing a relay pipe communicating with a flow passage located between the temperature raising unit and the cleaning tank, and one end is communicated with the other end of the relay pipe, and
A dishwasher, characterized in that a flow path is formed so that the other end communicates with a washing tank. 3. The dishwasher according to claim 1, wherein the temperature raising unit has a preliminary tank for storing preheated rinsing water for high temperature rinsing.