JP6295417B2 - dishwasher - Google Patents

Description

  The present invention relates to a dishwasher for washing dishes and the like. More specifically, the present invention relates to a detergent input part of a dishwasher.

  A conventional dishwasher includes an input device that sets an operation course and the like, and a control device that sequentially controls processes such as washing, rinsing, and drying based on the setting of the input device, and the control device includes a washing pump, The cleaning operation is executed by controlling various electrical components such as a heater, a water supply valve, and a blower fan. Prior to execution of the cleaning operation, the user puts the detergent into the cleaning tank with a spoon or the like.

  A conventional dishwasher will be described below (see, for example, Patent Document 1). FIG. 8 is a side sectional view of a conventional dishwasher. FIG. 9 is a front sectional view of a conventional dishwasher. The dishwasher has a washing tub 3 inside the housing 1. The washing tub 3 is provided with a tableware basket 14 in which an object 7 to be cleaned such as tableware is set. The user opens the door 18 provided at the front portion of the housing 1, pulls out the tableware basket 14 from the opening 2 of the cleaning tank 3, and sets the object 7 to be cleaned in the tableware basket 14.

  The user pushes the table basket 14 into the washing tub 3 and houses it, and puts a predetermined amount of detergent into the washing tub 3. Next, when the operation is started after the door 18 is closed, the dishwasher operates the washing pump 5 driven by the motor. Then, the cleaning water pressurized by the cleaning pump 5 is sprayed from the cleaning nozzle 6 to perform the cleaning operation of the object 7 to be cleaned.

  The washing water used in the washing and rinsing process of the washing operation is supplied by a water supply valve 15 attached to the lower rear portion of the housing 1 and is stored in the water reservoir 4 at the bottom of the washing tank 3. The water level detection unit 20 includes a cleaning water level sensor 20 a and an overflow sensor 20 b, and guides the cleaning water stored in the water reservoir 4 through the leftover vegetable recovery unit 10. The cleaning water level sensor 20 a detects that a predetermined amount of water has been accumulated in the cleaning tank 3. The overflow sensor 20b detects that the water level in the cleaning tank 3 becomes higher than a predetermined water level and there is a possibility of overflow. The leftover collection unit 10 is provided at the lowest position of the water reservoir 4 and has a removable leftover collection filter and a coarse drainage filter.

  A control device 21 is provided in the lower part of the housing 1. The control device 21 controls various electrical components such as the cleaning pump 5, the heater 8, the water supply valve 15, and the blower fan 17, and executes a cleaning operation that includes the steps of washing, rinsing, and drying.

  When the user sets an operation course using the input device 19 provided at the lower front of the housing 1, the control device 21 starts operation of the dishwasher based on the setting. For example, when the standard course is set by the input device 19, the water supply to the cleaning tank 3 is accurately performed to the predetermined water level by the detection information of the cleaning water level sensor 20a. Then, the cleaning pump 5 is operated for a while, and then the supply water 15 is energized for a predetermined time to add supplementary water to be added, so that the amount of cleaning water in the cleaning tank 3 is adjusted to a necessary and sufficient amount for cleaning. .

  When the water supply is completed, the control device 21 energizes the heater 8 and simultaneously operates the cleaning pump 5 to melt the detergent previously introduced into the cleaning tank 3 and spray the cleaning water from the cleaning nozzle 6 to be cleaned. 7 is washed. And based on the control program set as a standard course, processes, such as washing, a rinse, and drying, are controlled and a washing operation is performed.

JP 2013-111232 A

  Dissolution of the introduced detergent is promoted as the temperature of the cleaning water rises due to the flow of the cleaning water circulating in the cleaning tank. However, in the above-described conventional configuration, when the powder detergent is put in with a spoon or the like, it is piled up in a mountain shape at the bottom of the cleaning tank. Therefore, it takes time to dissolve the detergent even if the washing water flows with the water temperature increased, the washing process proceeds with the detergent concentration being low, and the washing water with the detergent completely dissolved is used. Since the operation time is shortened, there is a problem that the maximum cleaning effect cannot be obtained.

  The present invention solves the above-mentioned conventional problems, and spreads a wide range so that the powder detergent to be deposited does not accumulate, thereby increasing the dissolution rate of the detergent, and shortens the operation time in the washing water in which the detergent is completely dissolved. To provide a dishwasher that is long and can exhibit high detergency.

In order to solve the above-described conventional problems, a dishwasher according to the present invention includes a housing, a washing tank that accommodates an object to be washed in the housing and stores washing water, and a washing water provided in the washing tank. A cleaning nozzle that sprays the object to be cleaned, a cleaning pump that supplies cleaning water to the cleaning nozzle and circulates the cleaning water, a heater that heats the cleaning water, and a detergent that indicates the position of the detergent in the cleaning tank and a feeding section, the detergent supply part may have a sloping surface to diffuse the inserted detergent, wherein the inclined surface, the width of the bottom side of the cleaning tank is provided so as to spread than the width of the upstream Is.

  As a result, since the detergent diffuses without depositing at the bottom of the washing tank, the dissolution rate of the detergent is increased, and a high concentration and high temperature washing water can be obtained in a short time. Therefore, the dishwasher completely dissolves the detergent. The washing time with washing water can be lengthened to exhibit high detergency.

  The dishwasher of the present invention has a high detergent concentration and high-temperature washing water can be obtained in a short time, and the operation time in washing water in which the detergent is completely dissolved can be extended, and exhibits high detergency. can do.

Side surface sectional drawing of the dishwasher in Embodiment 1 of this invention Plan sectional drawing of the dishwasher in Embodiment 1 of this invention The top view of the detergent insertion part of the dishwasher in Embodiment 2 of this invention Plan sectional drawing of the detergent insertion part of the dishwasher in Embodiment 2 of this invention Rear view of the detergent input part of the dishwasher in Embodiment 2 of the present invention The top view of the detergent insertion part of the dishwasher in Embodiment 3 of this invention Plan sectional drawing of the detergent insertion part of the dishwasher in Embodiment 3 of this invention Side sectional view of a conventional dishwasher Front sectional view of a conventional dishwasher

A dishwasher according to a first aspect of the present invention includes a housing, a cleaning tank that stores the cleaning object in the casing and stores cleaning water, and a cleaning nozzle that is provided in the cleaning tank and injects the cleaning water onto the cleaning object. A cleaning pump for supplying cleaning water to the cleaning nozzle to circulate the cleaning water, a heater for heating the cleaning water, and a detergent charging unit indicating a detergent charging position. It has a slanted surface for diffusing detergent, wherein the inclined surface is to the width of the bottom side of the cleaning tank is provided so as to spread than the width of the upstream side.

Thereby, it is possible to prevent the detergent from diffusing to the bottom of the washing tank and accumulating in a mountain shape, so that the dissolution rate of the detergent is increased and high-concentration and high-temperature washing water can be obtained in a short time. For this reason, the dishwasher sprays wash water in which the detergent is completely dissolved at an early stage of the washing operation, and increases the washing time with the wash water in which the detergent is completely dissolved. It can be demonstrated. In addition, since the introduced detergent can be diffused more widely and efficiently in the lateral direction, the detergent remains undissolved even when a large amount of detergent is introduced.

  According to a second aspect, in the first aspect, the detergent charging unit includes the inclined surface, a detergent charging port, and a grid, and the grid is provided between the detergent charging port and the inclined surface. It is what was done. As a result, even if a solid detergent is accidentally put in, it can be caught and removed by a lattice or crushed, so that no undissolved detergent remains.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
The dishwasher in Embodiment 1 of this invention is demonstrated. 1 is a side sectional view of a dishwasher according to Embodiment 1 of the present invention. FIG. 2 is a plan sectional view of the dishwasher.

  As shown in FIG. 1, the dishwasher includes a washing tub 3, a dish basket 14, a washing nozzle 6, and a heater 8 inside the housing 1. The cleaning tank 3 has an opening 2 for taking in and out an object 7 such as tableware on the front surface. The tableware basket 14 in which the article 7 to be cleaned is set is accommodated in the cleaning tank 3 so that it can be taken in and out from the opening 2. The door 18 closes the opening 2 in a watertight manner, and serves as a place for the tableware basket 14 drawn out when opened.

  The cleaning nozzle 6 is provided in the lower part of the cleaning tank 3 and cleans the cleaning object 7 set in the tableware basket 14 by spraying cleaning water. A cleaning pump 5 is disposed outside the bottom of the cleaning tank 3 and supplies cleaning water to the cleaning nozzle 6 to circulate the cleaning water. The cleaning pump 5 is driven by a motor that can rotate in the forward and reverse directions. When the cleaning pump 5 rotates in the forward direction, it operates as a cleaning pump that circulates the cleaning water. When the cleaning pump 5 rotates in the reverse direction, the cleaning water in the cleaning tank 3 is discharged out of the machine. Operates as a drainage pump. The heater 8 is provided at the bottom of the cleaning tank 3 and heats the cleaning water stored in the cleaning tank 3. The periphery of the heater 8 is protected by a heater protection component 9.

  A leftover collection unit 10 that collects leftovers washed away from the object 7 to be cleaned is provided in front of the drain 16 from the cleaning tank 3 to the cleaning pump 5. The leftover collection unit 10 includes a leftover collection filter and a coarse drainage filter. A water supply valve 15 is provided at the lower rear side of the housing 1. When the water supply valve 15 is operated, tap water is supplied into the cleaning tank 3 through the pipe 15a.

Moreover, the water level detection part 20 is provided in communication with the downstream side of the leftovers collection part 10 by piping. The water level detection unit 20 includes a cleaning water level sensor 20a and an overflow sensor 20b. The cleaning water level sensor 20 a detects from the water level that a predetermined amount of cleaning water has been accumulated in the cleaning tank 3. A temperature sensor 24 that detects the temperature of the cleaning water in the cleaning tank 3 is fixed to the outside of the bottom of the cleaning tank 3. Further, a blower fan 17 for introducing external air in the drying process is disposed outside the bottom of the cleaning tank.

  In addition, a control device 21 that controls various electrical components such as the cleaning pump 5, the heater 8, the water supply valve 15, and the blower fan 17 is provided in the lower part of the housing 1. The control device 21 includes input information such as power on / off, course selection, operation start, and the like input from an input device 19 provided at the lower front of the housing 1 and detection information from the water level detection unit 20 and the temperature sensor 24. Then, various electrical components are controlled based on a command from the control program, and a cleaning operation including cleaning, rinsing, and drying steps is executed.

  Detergents are used for dishwashing. The cleaning tank 3 is provided with a detergent charging part 11 that indicates the position of the detergent. The detergent charging part 11 is arranged near the lower end of the opening 2 in order to avoid contact with the tableware basket 14. The detergent thrown into the detergent throwing part 11 is guided to the water reservoir 4 at the bottom of the washing tank 3. The detergent charging unit 11 has an inclined surface 12, and the detergent is input to the inclined surface 12 by the user using the inclined surface 12 as a charging position.

  About the dishwasher comprised as mentioned above, the operation | movement and an effect | action are demonstrated. Since the basic operation and action of the dishwasher are the same as those of the dishwasher shown as the conventional example, the description thereof is omitted.

  When the controller 21 starts the cleaning operation, the controller 21 first performs the drainage by operating the cleaning pump 5 as a drainage pump. Thereafter, the water supply valve 15 is operated to supply water to the cleaning tank 3 until the cleaning water level sensor 20a is operated. When the cleaning water level sensor 20a detects a predetermined water level, the control device 21 stops water supply. The water level of the cleaning water in the cleaning tank 3 at this time is set lower than the water level at the time of subsequent cleaning.

  The user opens the door 18 provided at the front portion of the housing 1, pulls out the tableware basket 14 from the opening 2 of the cleaning tank 3, and sets the object 7 to be cleaned in the tableware basket 14. Then, the tableware basket 14 is pushed into the washing tub 3 and accommodated, and a predetermined amount of detergent is put into the washing tub 3 through the detergent throwing portion 11. Thereafter, the door 18 is closed and the operation is started.

  In the introduction of the detergent, the user throws in the detergent from the detergent inlet 11a of the detergent inlet 11 indicating the detergent insertion position. As shown by the arrow 22 in FIG. 2, the introduced detergent slides down while being spread left and right by the inclined surface 12, and spreads on the heater protection component 9, the heater 8, and the leftover collection part 10 at the bottom of the washing tank 3. To do. As described above, the detergent is diffused and guided to the bottom of the cleaning tank 3, so that dissolution of the detergent is promoted by the flow of the cleaning water circulating in the cleaning tank 3 as the temperature of the cleaning water rises. The detergent dissolves in the washing water in a short time, and the dishwasher performs washing with high-concentration and high-temperature washing water from an early stage of the washing process.

  As described above, the dishwasher according to the present embodiment can spread the detergent over a wide range without accumulating in a mountain shape, and can improve the dissolution rate of the detergent. Can be sufficiently dissolved. And it can wash | clean with high concentration and high temperature washing water from the early stage of washing | cleaning operation. Therefore, the dishwasher can lengthen the time during which high-concentration and high-temperature washing water is sprayed on an object to be washed such as tableware, and can exhibit a higher washing effect even with the same washing time as before.

(Embodiment 2)
The dishwasher in Embodiment 2 of this invention is demonstrated. FIG. 3 is a plan view of the detergent charging part of the dishwasher according to Embodiment 2 of the present invention. FIG. 4 is a plan sectional view of the detergent charging part. FIG. 5 is a rear view showing the configuration of the lattice of the detergent charging unit.

  The dishwasher of the present embodiment is different from the first embodiment in that the detergent charging unit 11 has a detergent charging port 11a and a lattice 13 in addition to the inclined surface 12a, and the detergent charging port 11a and the inclined surface 12a. The grid 13 is provided between the two. Thereby, when the solid detergent 23 is mixed and mixed with the powder detergent, it can be easily removed by being caught by the lattice 13 as shown in FIG. Further, since the detergent can be easily crushed if it is not hard and hard, the powder detergent can be diffused and guided to the bottom of the washing tank 3.

  With the above configuration, the undissolved residue of the solid detergent 23 is not generated. Therefore, it is possible to sufficiently dissolve the detergent put in for a short time and to perform washing with high-concentration and high-temperature washing water from an early stage of the washing operation.

(Embodiment 3)
The dishwasher in Embodiment 3 of this invention is demonstrated. FIG. 6 is a plan view of a detergent charging part of the dishwasher according to Embodiment 3 of the present invention. FIG. 7 is a plan sectional view showing the configuration of the lattice of the detergent charging unit.

  The difference between the dishwasher of the present embodiment and the second embodiment is that the inclined surface 12b and the lattice 13a are provided so as to expand toward the bottom side of the washing tub 3. Thereby, the supplied detergent can diffuse more widely in the lateral direction. Therefore, even if a large amount of detergent is added, the detergent will not be left undissolved, and the detergent that has been thrown in will be sufficiently dissolved in a short period of time. Cleaning can be performed.

  In addition, in this Embodiment, although it comprised so that both the inclined surface 12b and the grating | lattice 13a might spread toward the bottom part side of the washing tank 3, it does not restrict to this. For example, any one of the inclined surface 12b and the lattice 13a may be widened. Moreover, the width | variety of the front-end | tip at the bottom part side of the inclined surface 12b should just be wider than the width | variety of the detergent inlet 11b, and it does not necessarily limit to expanding so that it goes to the bottom part side.

  As described above, the dishwasher according to the present invention exhibits high detergency by diffusing the introduced detergent and dissolving it in a short time, and extending the washing time with washing water in which the detergent is completely dissolved. It can be applied not only to a tabletop dishwasher but also to a built-in type or a commercial dishwasher.

DESCRIPTION OF SYMBOLS 1 Housing | casing 3 Cleaning tank 5 Cleaning pump 6 Cleaning nozzle 7 To-be-washed object 8 Heater 11 Detergent input part 11a, 11b Detergent input port 12, 12a, 12b Inclined surface 13, 13a Grid 14 Tableware basket

Claims (2)

A housing, a cleaning tank for storing the cleaning object in the casing and storing cleaning water, a cleaning nozzle provided in the cleaning tank for injecting the cleaning water onto the cleaning object, and cleaning water for the cleaning nozzle A cleaning pump for supplying and circulating the cleaning water, a heater for heating the cleaning water, and a detergent charging unit indicating a detergent charging position. The detergent charging unit has an inclined surface for diffusing the charged detergent. Yes, and
The inclined surface is a dishwasher provided such that the width of the bottom side of the washing tank is wider than the width of the upstream side . The dishwasher according to claim 1, wherein the detergent charging unit includes the inclined surface, a detergent charging port, and a grid, and the grid is provided between the detergent charging port and the inclined surface.

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