Tableware washing machine

Abstract

The invention provides a dishwasher. The dishwasher can effectively prevent the inside of a detergent supply part for supplying a detergent or a rinsing agent from being contaminated due to the fact that cleaning operation is performed while an opening part for supplying the detergent or the rinsing agent is still in an open state. A dishwasher (1) is provided with a washing tank (3), an opening / closing door (4), and a rinsing agent supply unit (30). The washing tank accommodates tableware. The opening and closing door has a rotating shaft (4a) disposed on the lower end side, and opens and closes around the rotating shaft so as to expose the cleaning tank to the outside space. The rinsing agent supply part is provided with an opening part (31a) for replenishing a rinsing agent (R1), an input port (31b) for inputting the rinsing agent into the cleaning tank and a cover part (32) for closing the opening part on the side, facing the cleaning tank, of the opening and closing door, and the rinsing agent supply part supplies the rinsing agent to the cleaning tank. When the opening part of the tableware cleaning machine is not closed by the cover part, the opening and closing door cannot be closed, and / or the operation cannot be started.

Description

Technical Field

[0001] The present disclosure relates to a dishwasher that washes tableware and the like stored in a washing tank. Background Art

[0002] In recent years, dishwashers are used that automatically wash dishes and the like placed in a washing tank provided in a main body.

[0003] For example, Patent Document 1 discloses a dishwasher, in which an adding device for supplying additives is arranged in an inner door for opening and closing an inner chamber of the dishwasher and having a peripheral edge portion facing the inner chamber when the door is closed, approximately in the center between the side edges and in the upper area between the upper edge and the lower edge.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application No. 2009-520537 Summary of the invention

[0007] Problem that the invention aims to solve

[0008] However, the above-mentioned conventional dishwasher has the following problems.

[0009] That is, in the dishwasher disclosed in the above publication, the adding device for supplying an additive such as a rinse agent has a container closed by a sliding cover, and the additive is filled into the container with the sliding cover opened.

[0010] Therefore, if the user forgets to close the sliding cover and leaves the inner door closed, and the operation of washing dishes is performed with the sliding cover open, washing water and contamination of dishes rolled up by the nozzle spraying may penetrate into the receiving part of the adding device. In addition, the washing water and contamination that have penetrated into the receiving part are difficult to be removed by the user, so the additive cannot be properly added to the washing tank after the next operation, and the drying performance may be poor.

[0011] The present disclosure aims to provide a dishwasher that can effectively prevent the inside of a detergent supply unit for supplying detergent or rinse agent from being contaminated when a cleaning operation is performed while an opening for supplying detergent or rinse agent is still open.

[0012] Solutions for solving problems

[0013] The tableware washing machine disclosed in the present invention includes a washing tank, an opening and closing door, and a detergent supply unit. The washing tank stores tableware. The opening and closing door has a rotating shaft arranged on the lower end side, and opens and closes with the rotating shaft as the center to expose the washing tank to the external space. The detergent supply unit has an opening for replenishing detergent or rinse agent, an inlet for injecting detergent or rinse agent into the washing tank, and a cover for closing the opening on the side of the opening and closing door facing the washing tank, and the detergent supply unit supplies detergent or rinse agent to the washing tank. When the cover does not close the opening, the opening and closing door cannot be closed, and / or the operation cannot be started.

[0014] Effects of the Invention

[0015] According to the dishwasher disclosed herein, it is possible to effectively prevent the inside of the detergent supply unit for supplying detergent or rinse agent from being contaminated due to the cleaning operation being performed while the opening for supplying detergent or rinse agent is still open. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic perspective view showing a state in which the opening and closing door is rotated and opened in the dishwasher according to the embodiment of the present disclosure, and a part of the dishware basket (box interior) is exposed from the opening.

[0017] Figure 2 It means in Figure 1 A schematic perspective view of a dishwasher in which an opening and closing door is opened relative to a housing and a tableware basket is pulled out.

[0018] Figure 3 It is to express Figure 1 A schematic three-dimensional view of the internal structure of a dishwasher with the cutlery basket at the bottom removed.

[0019] Figure 4 yes Figure 1 Control block diagram of a dishwasher.

[0020] Figure 5 Yes means Figure 1 A front view of the structure of the inner surface side of the opening and closing door of the dishwasher.

[0021] Fig. 6A It means setting Figure 5 A perspective view of the structure of the rinse agent supply unit on the inner surface side of the opening and closing door shown.

[0022] Figure 6B It means to make Fig. 6A A perspective view of a state in which a cover portion included in a rinse agent supply portion is opened.

[0023] Figure 7 Yes means Fig. 6A and Figure 6B An enlarged front view of the structure of the rinse agent supply portion is shown.

[0024] Figure 8 Yes means Figure 7 A rear view of the structure of the back side (the side built into the opening and closing door) of the rinse agent supply unit.

[0025] Fig. 9 It means to make Figure 8 An enlarged perspective view of a state in which a cover of a rinse agent supply portion is opened.

[0026] Fig. 10A yes Figure 7 A cross-sectional view of the rinse agent supply portion taken along line A-A.

[0027] Fig. 10B It means to make Fig. 10A A cross-sectional view of a rinse agent supply unit with a lid portion opened.

[0028] Fig.11 It means that Fig. 10A A perspective view showing a state in which the lid of the rinse agent supply unit is kept open and the opening and closing door is closed, and the lid interferes with the dishware basket.

[0029] Fig.12 Yes means Fig.11 A perspective view showing a state in which the cover interferes with the cutlery basket and the door cannot be completely closed.

[0030] Fig.13 It is a perspective view showing the structure of the inner surface side of the opening and closing door of the dishwasher according to another embodiment of the present disclosure.

[0031] Fig.14 It means that the setting Fig.13 An enlarged perspective view of a state in which a lid of a rinse agent supply portion on the inner surface side of the opening and closing door is opened.

[0032] Fig.15 It means that Fig.14 The illustrated perspective view shows a state in which a lid included in the rinse agent supply unit is kept open and the opening and closing door is closed, and the lid interferes with the dish basket.

[0033] Fig.16 Yes means Fig.15 A perspective view showing a state in which the cover interferes with the cutlery basket and the door cannot be completely closed.

[0034] Fig.17 This is a perspective view showing the structure of a rinse agent supply unit provided on the inner surface side of an opening and closing door of a dishwasher according to still another embodiment of the present disclosure.

[0035] Fig.18A Yes means Fig.17 A sectional view of the structure of a rinse agent supply portion.

[0036] Fig.18B It means to make Fig.18A A cross-sectional view of a rinse agent supply unit with a lid portion opened.

[0037] Fig.19 Contains detection Fig.17 A control block diagram of a dishwasher showing an open / closed state of a lid portion of a rinse agent supply portion and a lid opening / closing detection unit.

[0038] Description of Reference Numerals

[0039] 1. Dishwasher; 2. Shell; 2a. Side; 2b. Top; 2c. Bottom; 2d. Back; 3. Washing tank; 4. Opening and closing door; 4a. Rotating shaft; 4b. Inner surface; 5. Opening; 7. Drainage outlet; 9. Dish basket (box inner part); 9a. Handle; 10. Rotating washing nozzle; 11. Top washing nozzle; 12. Water supply path; 13a. Washing pump; 13b. Drain pump; 14. Washing heater; 15a. Water distribution motor; 15b. Residual water motor; 16 a, water supply valve; 16b, flow meter; 17a, air supply fan; 17b, air supply heater; 17c, cooling fan; 18, door opening and closing switch; 19, middle cleaning nozzle; 20, control device; 20a, I / F; 21, processor; 21a, operation control unit; 21b, display operation control unit; 21c, maintenance unit; 21d, input control unit; 22, memory; 22a, control program; 30, rinse agent supply unit (cleaning agent supply unit); 31a, opening; 31 b, inlet; 31c, locking portion; 32, cover; 32a, main body; 32b, elastic ring; 32c, locked portion; 32d, lower end surface; 33, rotating shaft; 34, rib; 34a, abutment surface; 35, storage tank; 36, inlet tank; 36a, solenoid valve (inlet valve); 36b, sealing portion; 36c, communication portion; 37, water temperature detection portion; 38, rinse agent remaining amount detection portion; 38a, float member; 39, detergent supply portion; 41, handle; 42, flat portion ; 43. Display operation unit; 44. Display unit; 101. Dishwasher; 130. Rinse agent supply unit (cleaning agent supply unit); 131c. Locking unit; 132. Cover unit; 132c. Locked unit; 133. Groove unit; 201. Dishwasher; 230. Rinse agent supply unit (cleaning agent supply unit); 239. Cover opening and closing detection unit (detection unit); 239a. Reed switch; 239b. Magnet; d1. Gap; R1. Rinse agent; R1a. 1 amount of rinse agent. DETAILED DESCRIPTION

[0040] The following describes the embodiments in detail with reference to the accompanying drawings as appropriate. However, detailed descriptions beyond the necessary level may be omitted. For example, detailed descriptions of widely known matters and repeated descriptions of substantially the same structures may be omitted. This is to avoid unnecessary redundancy in the following descriptions and to make it easier for those skilled in the art to understand.

[0041] In addition, the drawings and the following descriptions are provided to allow those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0042] (Implementation Method 1)

[0043] use Figures 1 to 12 , a dishwasher 1 according to an embodiment of the present disclosure is described below.

[0044] The dishwasher 1 of this embodiment is a built-in dishwasher used, for example, in an integrated kitchen, and washes dishes (not shown) as objects to be washed in an internal washing tank 3. In addition, the dishwasher 1 supplies a detergent and a rinse agent to be described later into the washing tank 3, and performs a washing process, a rinsing process, a drying process, and the like.

[0045] Tableware washed by dishwasher 1 includes, for example, containers (plates, bowls, etc.) used for dining, cutlery (chopsticks, spoons, forks, knives, etc.), cooking utensils such as knives, cutting boards, frying pans, pots, etc. used for cooking, and the like.

[0046] (1) Structure of the Dishwasher 1

[0047] like Figure 1 and Figure 2 As shown, dishwasher 1 includes housing 2, washing tank 3 provided inside housing 2 to store dishes (objects to be washed), and swingable door 4 for opening and closing opening 5 located at the front surface of washing tank 3.

[0048] In addition, in this embodiment, if Figure 1 and Figure 2 As shown, the direction of pulling out the cutlery basket (box internal component) 9 from the washing tank 3 or the direction of the opening 5 side is set as the front direction, and the direction of storing the cutlery basket 9 in the washing tank 3 or the direction of the rear surface 2d side is set as the rear direction for description. In addition, hereinafter, the top surface 2b side of the washing tank 3 of the dishwashing machine is set as the top, and the bottom surface 2c side is set as the bottom, and further, the right side when viewed from the front of the opening and closing door 4 is set as the right, and the left side is set as the left for description.

[0049] like Figure 1 and Figure 2As shown, the housing 2 is a box-shaped member having a substantially rectangular parallelepiped shape, and a washing tank 3 for placing tableware, a tableware basket 9, and the like are provided inside.

[0050] like Figure 1 and Figure 2 As shown, the washing tank 3 is provided inside the housing 2 for washing the tableware placed in the tableware basket 9, and has an opening 5 on the front surface. In addition, the washing tank 3 is provided with a tableware basket 9 for storing tableware, a rotating washing nozzle 10, a top surface washing nozzle 11, a middle layer washing nozzle 19, etc.

[0051] like Figure 1 and Figure 2 As shown, the door 4 has a handle 41, a flat surface portion 42 provided on the front surface, a display operation portion 43, and a display portion 44. The door 4 is rotated by a rotation axis 4a (see Figure 5 The housing 2 is opened and closed by rotating the housing 2 so as to cover the opening 5.

[0052] In addition, the door opening and closing switch 18 (see Figure 4 ) Detect the opening and closing status of the opening and closing door 4.

[0053] The handle 41 is a groove portion that is gripped by a user when opening and closing the door 4 relative to the housing 2 , and is provided above the flat surface portion 42 .

[0054] The flat surface portion 42 is covered with a surface material etc. A display operation portion 43 , a display portion 44 and the like are arranged on the top surface of the opening and closing door 4 .

[0055] Display operation unit 43 receives operation input from the user and inputs such as a washing course of dishwasher 1 and turning on and off the power.

[0056] Display unit 44 displays information such as the status of washing and drying performed by dishwasher 1 , the status of operation, time, and the contents of settings input to display operation unit 43 .

[0057] The opening 5 is opened and closed by the opening and closing door 4 which is installed in a state of being rotatable relative to the housing 2. Figure 2 As shown, the dish basket 9 is provided in the washing tank 3 in a state where it can be inserted and removed in the front-rear direction.

[0058] The tableware basket 9 is used to place the washed or cleaned tableware. Figure 2 As shown, after the user opens the door 4, the user pulls the cutlery basket 9 forward by gripping the handle 9a to put the cutlery basket 9 in and out.

[0059] In addition, Figure 1 to Figure 3In the figure, a three-layer structure is shown in which the tableware baskets 9 are arranged in the upper layer, the middle layer, and the lower layer, respectively. However, a structure in which the tableware baskets 9 are arranged in two layers, or in four or more layers, of the upper layer and the lower layer may also be used.

[0060] Furthermore, the dishwasher 1 includes a water supply unit (not shown) for supplying water to the washing tank 3, a washing pump 13a (see Figure 4 ), a water supply path 12 from the cleaning pump 13a toward the top surface cleaning nozzle 11, a water supply path from the cleaning pump 13a toward the middle layer cleaning nozzle 19, a cleaning path from the cleaning pump 13a toward the rotating cleaning nozzle 10 (not shown), and a water distribution mechanism, which includes a water distribution motor 15a for distributing cleaning water to the cleaning path toward the rotating cleaning nozzle 10 and the water supply path 12 toward the top surface cleaning nozzle 11 (refer to Figure 4 ).

[0061] The water supply unit includes a water supply hose (not shown), a water supply valve 16a (see Figure 4 ) etc. Specifically, first, Figure 4 The control device 20 shown controls the water supply valve 16a to supply washing water such as tap water from a branch faucet in the kitchen to a water supply path such as a water supply hose. The supplied washing water is supplied to the washing tank 3 in a required amount through the water supply path.

[0062] At this time, the washing water supplied to the washing tank 3 may also be heated by the washing heater 14 (see Figure 4 ) is heated and circulated in a warm water state.

[0063] The washing pump 13a pressurizes and delivers washing water to the rotary washing nozzle 10 and the top washing nozzle 11. When a plurality of rotary washing nozzles 10 are provided, washing water is pressurized and delivered from the washing pump 13a to each rotary washing nozzle 10 and / or the top washing nozzle 11 via a water distribution mechanism including a water distribution motor 15a.

[0064] For example, Figure 3 As shown, rotary washing nozzle 10 is provided below tableware basket 9 and sprays washing water from below toward tableware placed in tableware basket 9 while rotating due to the reaction force of pressurized washing water.

[0065] Alternatively, rotating cleaning nozzle 10 may be a type of nozzle that sprays cleaning water toward dishes from a cleaning hole provided in a cleaning path (not shown) provided on a side surface (side surface 2a other than the top surface) in cleaning tank 3 .

[0066] For example, Figure 3As shown, the top surface cleaning nozzle 11 is provided above the cutlery basket 9, that is, on the top surface of the washing tank 3. The top surface cleaning nozzle 11, like the rotating cleaning nozzle 10, sprays cleaning water from above toward the cutlery placed in the cutlery basket 9 while rotating by the reaction force of the pressurized cleaning water.

[0067] For example, Figure 2 As shown, the middle cleaning nozzle 19 is provided on the bottom surface of the middle tableware basket 9. The middle cleaning nozzle 19, like the rotating cleaning nozzle 10, sprays cleaning water from below toward the tableware placed in the middle tableware basket 9 while rotating by the reaction force of the pressurized cleaning water, and sprays cleaning water from above toward the tableware placed in the lower tableware basket 9.

[0068] That is, the washing pump 13a pressurizes the washing water accumulated in the washing tank 3 and supplies it to the rotating washing nozzle 10, the top surface washing nozzle 11 and the middle layer washing nozzle 19. The washing water sprayed from the rotating washing nozzle 10 and the top surface washing nozzle 11 washes away the dirt attached to the tableware and washes the tableware. In addition, the washing water includes: a washing liquid containing a detergent and sprayed on the object to be washed, and a rinsing liquid containing a rinsing agent R1 added when rinsing the object to be washed.

[0069] The suction side of the washing pump 13a is connected to the drain port 7, and the washing water supplied to the washing tank 3 is circulated through the washing path and the water supply path 12, and the washing water is sprayed from the rotating washing nozzle 10 and the top surface washing nozzle 11. Then, the dishes are washed with the sprayed washing water.

[0070] like Figure 3 As shown, the drain port 7 is arranged at the bottom of the cleaning tank 3 .

[0071] A residue filter (not shown) is detachably provided at the drain port 7 to collect the residues cleaned and removed from the object to be cleaned.

[0072] Drain pump 13b (see Figure 4 ) After the cleaning process is completed, the cleaning water in the cleaning tank 3 is discharged.

[0073] Cleaning heater 14 (refer to Figure 4 ) heats the washing water accumulated in the washing tank 3 during the washing process. The washing heater 14 is arranged near the bottom of the washing tank 3. In addition, the washing heater 14 may not be arranged near the bottom of the washing tank 3, but may be built into the washing pump 13a.

[0074] Washing pump 13a may also function as a drain pump by reversing the rotation direction of the motor during circulation to discharge washing water from washing tank 3. In this case, washing pump 13a may also function as a drain pump, thereby eliminating the need for a drain pump.

[0075] In addition, a drain valve may be provided instead of drain pump 13b. In this case, by opening the drain valve, washing water can be discharged from washing tank 3 by natural fall due to gravity.

[0076] Here, dishwasher 1 includes a drainage path (not shown) for draining washing water from washing tank 3. The drainage path includes drainage port 7, drainage pump 13b, drainage hose (not shown), and the like.

[0077] When the washing process and the rinsing process of the dishes are finished, the drain pump 13b is driven, and the washing water passes through the drain port 7 and is discharged to the outside through the drain hose.

[0078] Furthermore, dishwasher 1 of the present embodiment dries washed dishes.

[0079] That is, Figure 4 As shown, the dishwasher 1 of this embodiment includes an air blowing fan 17a and an air blowing heater 17b.

[0080] Blowing fan 17a and blowing heater 17b are provided in a drying air passage connected to an air supply port provided at a lower portion of a side wall of washing tub 3, and suck air from an air intake port (not shown) and supply the air into washing tub 3 to dry washed dishes.

[0081] That is, when the air blower fan 17a is driven, the tubular air blower heater 17b is also driven, so that the air sucked from the air supply port and heated in the drying air passage is sent to the dishes in the washing tub 3.

[0082] In addition, a first exhaust port (not shown) is provided at the upper portion of the side wall of the washing tank 3, and an exhaust path is provided outside the side surface 2a of the washing tank 3. The air supplied from the air supply port to the washing tank 3 contains moisture in the washing tank 3, and is discharged from the first exhaust port through the exhaust path and from the second exhaust port (not shown) to the outside of the machine. In this way, the drying of the tableware in the washing tank 3 can be promoted by conveying the heated air and discharging the air containing moisture.

[0083] Here, in the dishwasher 1 of this embodiment, Figure 4 As shown, each part provided inside the housing 2 is controlled by the control device 20 .

[0084] like Figure 4As shown, the control device 20 includes an I / F (interface) 20a, a processor 21, and a memory 22, and is provided as a control substrate below the washing tank 3. In the control device 20, the processor 21 reads a control program 22a stored in the memory 22 to execute a washing operation and a drying operation.

[0085] More specifically, the control device 20 implements a washing process for washing the dishes, a rinsing process for rinsing out detergent and residues adhering to the dishes, a drying process for drying the washed dishes, and the like.

[0086] In the washing process and the rinsing process, the control device 20 controls Figure 4 The dishes in the washing tub 3 are washed by the washing pump 13a, the washing heater 14, the drain pump 13b, the water distribution motor 15a, the residual water motor 15b, the water supply valve 16a, the flow meter 16b, etc. shown.

[0087] In addition, during the drying process, the control device 20 controls Figure 4 The washed dishes are dried by using the air blowing fan 17a and the air blowing heater 17b shown.

[0088] The processor 21 is, for example, a CPU (Central Processing Unit) or an MPC (Micro Processing Unit). The processor 21 reads out and executes a control program 22a stored in the memory 22 to function as an operation control unit 21a, a display operation control unit 21b, a maintenance unit 21c, and an input control unit 21d.

[0089] The operation control unit 21a controls various devices connected to the control device 20, thereby controlling the washing operation of the dishwasher 1. The washing operation controlled by the operation control unit 21a may be an operation in which a washing process, a rinsing process, a drying process, and a storage process are successively performed in sequence, or an operation in which only any one process is performed, or an operation in which any two or more processes are performed in any order.

[0090] Here, the storage process is a process of storing tableware in the washing tank 3 when the opening and closing door 4 is in a closed state. The storage process includes at least one of a drying storage process and a sterilization storage process. The drying storage process is a process of drying and storing tableware using the air supply fan 17a. The sterilization storage process is a process of transporting charged fine particle water or ions generated by an electrostatic atomization device (not shown) into the washing tank 3 and sterilizing and storing the tableware.

[0091] The operation control unit 21a can perform water-saving and energy-saving operation during the washing operation. The water-saving and energy-saving operation is an operation for saving water and energy during the washing operation. The washing operation accompanied by the water-saving and energy-saving operation can save water and reduce power consumption compared to the washing operation not accompanied by the water-saving and energy-saving operation. During the washing operation, the operation control unit 21a determines whether to perform the water-saving and energy-saving operation based on the temperature change per unit time detected by the water temperature detection unit 37 and the detection signal of the turbidity detection sensor (not shown). And, when it is determined that the water-saving and energy-saving operation is to be performed, the operation control unit 21a performs the water-saving and energy-saving operation during the washing operation.

[0092] The display operation control unit 21b causes the display operation unit 43 to display various information. In addition, the display operation control unit 21b receives various operations from the user via the display operation unit 43.

[0093] Maintenance unit 21 c performs maintenance operation for cleaning a detergent supply passage that supplies liquid or solid detergent stored in detergent supply unit 39 into cleaning tank 3 using the liquid stored in detergent supply unit 39 .

[0094] During the maintenance operation, the liquid stored in the detergent supply unit 39 is, for example, water at 40° C. in which citric acid is dissolved. The liquid stored in the detergent supply unit 39 may be water at 40° C. or below in which citric acid is dissolved, water at 40° C. or above in which citric acid is dissolved, water in which citric acid is not dissolved, or water in which a component other than citric acid is dissolved.

[0095] For example, in the rinsing process, when the temperature of the washing water detected by the temperature detection unit 37 reaches a predetermined temperature (for example, 40° C.), the injection control unit 21 d controls the electromagnetic valve (injection valve) of the rinse agent supply unit 30 to supply the rinse agent.

[0096] 36a and from the input tank 36 (refer to Figure 8 ) Add rinse agent R1 into the cleaning tank 3.

[0097] In addition, the injection control unit 21d may control the number of times and the time for opening and closing the electromagnetic valve 36a to adjust the injection amount of the rinse agent R1 injected into the cleaning tank 3.

[0098] The memory 22 is a storage device for storing programs, various data, etc., and stores various data processed by the control program 22a and the processor 21. The memory 22 has a nonvolatile storage area. In addition, the memory 22 may also have a volatile storage area to constitute a work area of ​​the processor 21.

[0099] The I / F 20a has communication hardware that complies with a predetermined communication standard such as a connector and a communication circuit. Figure 4 As shown, I / F 20a is connected to the cleaning pump 13a, the drain pump 13b, the cleaning heater 14, the water diversion motor 15a, the residual water motor 15b, the water supply valve 16a, the flow meter 16b, the air supply fan 17a, the air supply heater 17b, the cooling fan 17c, the door opening and closing switch 18, the display operation unit 43, the solenoid valve 36a, the water temperature detection unit 37 and the rinse agent remaining amount detection unit 38, and communicates with these devices.

[0100] (2) Structure of the rinse agent supply unit 30

[0101] like Figure 5 As shown, the dishwasher 1 of this embodiment has a device for supplying a rinse agent R1 (see Figure 8 ) of the rinse agent supply unit (cleaning agent supply unit) 30.

[0102] In addition, the rinse agent R1 is composed of a component different from the detergent supplied from the detergent supply unit 39 into the washing tank 3, and contains, for example, a dissolved hydrophilic component supplied at a stage where the pH of the washing water decreases during the rinsing process. By adding the rinse agent R1 to the washing water, it is possible to optimize the removal of water from the surface of the dishes and improve the drying efficiency, thereby achieving power saving in the drying process.

[0103] like Figure 5 As shown, the rinse agent supply unit 30 is provided adjacent to the detergent supply unit 39 in the same housing, and the detergent supply unit 39 supplies detergent used in the washing process into the washing tank 3. In addition, the rinse agent supply unit 30 and the detergent supply unit 39 are provided together at the substantially central portion of the inner surface 4b of the opening and closing door 4 on the washing tank 3 side. Fig. 6A and Figure 6B As shown, the rinse agent supply unit 30 has an opening 31a for replenishing the rinse agent R1, and a rinse agent R1a (see FIG. 1 ) for feeding the rinse agent R1a into the washing tank 3 in an amount sufficient for one washing. Figure 8 ) and a cover portion 32 for closing the opening portion 31a.

[0104] The opening 31a is for replenishing the liquid stored in the storage tank 35 (see Figure 8 ) is connected to the storage tank 35, which is provided inside the rinse agent supply unit 30. In addition, the opening 31a is closed when the lid 32 is closed (see Fig. 6A ) is closed, and the lid 32 is opened by rotating it toward the cleaning tank 3 side (refer to Figure 6B )

[0105] That is, when the storage tank 35 is replenished with the rinse agent R1, the rinse agent R1 is replenished into the storage tank 35 from the opening 31a in a state where the lid 32 is opened and the opening 31a is opened.

[0106] On the other hand, during the above-mentioned washing process, rinsing process, drying process, etc., the opening 31a is closed by the cover 32. Thus, during the washing process, washing water, contaminants, etc. can be prevented from penetrating into the inside of the rinse agent supply unit 30 (the supply path of the rinse agent R1, the storage tank 35, the input tank 36, etc.) through the opening 31a.

[0107] In addition, if Figure 7 As shown, the opening 31 a is provided at the upper portion of the rinse agent supply portion 30 when the opening and closing door 4 is closed.

[0108] like Figure 7 As shown, when the door 4 is closed, the input port 31b is provided at a position below the opening 31a of the rinse agent supply portion 30, and a single amount of rinse agent R1a (see Figure 8 ).

[0109] Here, the amount of rinse agent R1a for one time refers to the amount of rinse agent R1a that is removed from the door 4 after the door 4 is opened and closed once. Figure 8 The storage tank 35 shown is for storing the rinse agent in the input tank 36 .

[0110] That is, when the door 4 is changed from a closed state to an open state, Figure 8 The upper side shown in the figure becomes an oblique downward direction, so that in the rinse agent supply unit 30, a predetermined amount of rinse agent R1a moves from the storage tank 35 to the input tank 36. And when the opening and closing door 4 is changed from the open state to the closed state, it is restored to Figure 8 In the upper and lower relationships shown, a predetermined amount of rinse agent R1 a is held in the input tank 36 in the rinse agent supply unit 30 .

[0111] The rinse agent R1 stored in the input tank 36 may be larger than the amount for one wash. In this case, the input control unit 21d can control the number and time of opening and closing the electromagnetic valve 36a to adjust the amount of rinse agent R1 input into the washing tank 3.

[0112] At this time, the input tank 36 is sealed by the sealing portion 36b opened and closed by the electromagnetic valve 36a. When, for example, the water temperature detection portion 37 detects that the temperature of the washing water reaches a predetermined temperature (for example, 40°C), the input control portion 21d of the control device 20 controls the electromagnetic valve 36a to release the sealing state of the sealing portion 36b.

[0113] Thus, the rinse agent R1a stored in the input tank 36 for one time flows along the Figure 8 The device moves in the direction of the arrow shown to the communication portion 36c that communicates with the input port 31b.

[0114] As a result, a single amount of rinse agent R1a is supplied into cleaning tank 3 from gap d1 near the lower end portion of lid 32 via insertion port 31b due to gravity.

[0115] In addition, if Figure 8 As shown, the remaining rinse agent amount detector 38 detects the amount of the rinse agent R1 in the storage tank 35 using the float member 38a floating on the rinse agent R1. As a result, when the amount of the rinse agent R1 in the storage tank 35 decreases, a warning indicating that the rinse agent is exhausted is displayed on the display unit 44, etc., and the user can be urged to replenish the rinse agent R1.

[0116] As described above, the cover 32 can be opened and closed relative to the opening 31a provided in the main body of the rinse agent supply unit 30. Fig. 9 As shown in FIG. 1 , the cover 32 is provided in a state where it can rotate around a rotation shaft 33 provided on both side surfaces of the lower end portion. The cover 32 includes a plate-shaped main body portion 32a, an elastic ring 32b, a locked portion 32c, and a lower end surface 32d.

[0117] The plate-shaped main body 32a rotates around the rotation shaft 33, and covers the opening 31a and the input port 31b in a state where the cover 32 is closed.

[0118] The elastic ring 32b is provided near the end of the main body 32a on the side opposite to the rotation axis 33 and facing the opening 31a, and elastically deforms by contacting with the outer periphery of the opening 31a when the cover 32 is closed. Thus, when the cover 32 is closed, the opening 31a is sealed from the cleaning tank 3 side.

[0119] The locked portion 32c is provided at the end portion of the main body portion 32a on the opposite side from the rotation axis 33, and is locked with the locking portion 31c provided above the opening portion 31a.

[0120] Thus, when the cover 32 is closed, the upper end of the main body 32 a is held so that the cover 32 is not opened.

[0121] The lower end surface 32d is located at the lower end of the main body 32a when the cover 32 is closed, and is arranged near the rotation axis 33. When the cover 32 is opened, the lower end surface 32d abuts against the abutment surface 34a of the rib 34 described later to limit the opening angle (maximum rotation range) of the cover 32.

[0122] like Fig. 10A and Fig. 10B As shown in FIG. 1 , the rib 34 is disposed near the lower end of the main body of the rinse agent supply unit 30 and near the rotation shaft 33. Fig. 10B In the illustrated state where the cover portion 32 is fully opened, the rib 34 abuts against the lower end surface 32 d of the main body portion 32 a of the cover portion 32 .

[0123] Therefore, if Fig. 10B As shown, the maximum rotation range when the cover 32 is opened can be limited to the cover 32 being in the oblique downward direction.

[0124] Therefore, when the door 4 is to be closed with the cover 32 opened, Fig.11 As shown, the top end of the cover 32 in the opened state interferes with the handle 9 a of the cutlery basket 9 provided in the washing tank 3 .

[0125] Therefore, even if the user mistakenly closes the door 4 while the lid 32 of the rinse agent supply unit 30 is open and attempts to perform a dishwashing operation, Fig.12 As shown, the door 4 cannot be completely closed. Therefore, the user can notice that he / she has forgotten to close the lid 32 of the rinse agent supply unit 30 and close the lid 32.

[0126] In addition, even in Fig.12 In the state shown, even if the operation start operation is input to the display operation unit 43, the door opening and closing switch 18 detects that the door 4 is not closed. Therefore, the operation control unit 21a of the control device 20 controls in a manner not to allow the operation to start, thereby preventing the washing water and pollutants from penetrating into the inside of the rinse agent supply unit 30 when the operation is started with the cover 32 opened.

[0127] In the control for not permitting such operation, a control for displaying on the display unit 44 that the door 4 is not closed or a control for sounding a warning to inform the user may be combined.

[0128] <Main Features>

[0129] The dishwasher 1 of this embodiment includes a washing tank 3, an opening and closing door 4, and a rinse agent supply unit 30. The washing tank 3 stores tableware. The opening and closing door 4 has a rotating shaft 4a disposed on the lower end side, and is opened and closed around the rotating shaft 4a to expose the washing tank 3 to the outside space. The rinse agent supply unit 30 has an opening 31a for replenishing the rinse agent R1, an inlet 31b for injecting the rinse agent R1 into the washing tank 3, and a cover 32 for closing the opening 31a on the side of the opening and closing door 4 facing the washing tank 3. The rinse agent supply unit 30 supplies the rinse agent R1 to the washing tank 3. When the cover 32 does not close the opening 31a, the dishwasher 1 is in a state where the opening 31a is opened. Fig.11 and Fig.12 As shown, the door 4 cannot be closed, and the operation cannot be started.

[0130] Thus, when the lid 32 that blocks the opening 31a for replenishing the rinse agent R1 to the rinse agent supply unit 30 is opened and the door 4 is closed, the lid 32 contacts the dish basket 9 (handle 9a) provided on the washing tank 3 side and the door 4 cannot be closed.

[0131] As a result, it is possible to effectively prevent the storage tank 35 and the input tank 36 storing the rinse agent R1 from being contaminated by performing the cleaning operation while the opening 31a for supplying the rinse agent R1 is still open.

[0132] Furthermore, since the path separating the inlet 31b for injecting the rinse agent R1 into the washing tank 3 is relatively short, the possibility of damage to the rinse agent supply unit 30 due to clogging caused by contamination during the washing process with the lid 32 opened can be eliminated.

[0133] (Implementation Method 2)

[0134] use Figure 13 to Figure 16 A dishwasher 101 according to another embodiment of the present disclosure will be described below.

[0135] Dishwasher 101 of this embodiment is different from Embodiment 1 in that lid 132 is provided which is opened and closed by sliding along groove 133 instead of the opening and closing of lid described in Embodiment 1 by rotating around a rotating shaft.

[0136] In addition, since the structure other than the structure related to the cover portion 132 is substantially the same as that described in the above-mentioned first embodiment, the same reference numerals are given to the overlapping components and the detailed description is omitted.

[0137] In the dishwasher 101 of this embodiment, Fig.13 As shown, a rinse agent supply unit 130 having a cover 132 is provided. The cover 132 opens and closes the opening 31 a by sliding in the vertical direction in the figure when the door 4 is closed.

[0138] The rinse agent supply unit 130 is similar to the rinse agent supply unit 30 described in the first embodiment. Fig.14 As shown, the rinse agent supply unit 130 is disposed adjacent to the detergent supply unit 39. Furthermore, the rinse agent supply unit 130 includes a cover 132 that covers the front surface of the opening 31a for replenishing the rinse agent R1.

[0139] like Fig.14As shown in the figure, when the cover 132 is opened to the maximum extent, the opening 31a and the inlet 31b are exposed on the front. In addition, the cover 132 can be closed by sliding along the groove 133 provided on the main body side of the rinse agent supply unit 130 in the up-down direction to cover the opening 31a and the inlet 31b.

[0140] At this time, the lid 132 is locked by the locked portion 132 c provided at the upper end thereof and the locking portion 131 c provided on the main body side of the rinse agent supply unit 130 , thereby maintaining the closed state.

[0141] Grooves 133 for guiding cover 132 in the sliding direction (vertical direction) are provided vertically on both sides of opening 31a and insertion port 31b on the main body side of rinse agent supply unit 130. Thus, cover 132 can be slidably moved in the vertical direction.

[0142] Here, when the lid 132 is opened when the rinse agent R1 is replenished to the rinse agent supply unit 130, Fig.14 The self-rinsing agent supply portion 130 is shown protruding downward.

[0143] Therefore, if the door 4 is to be closed with the cover 132 opened, Fig.15 As shown, the top end of the cover 132 in the opened state interferes with the handle 9 a of the cutlery basket 9 disposed in the washing tank 3 .

[0144] Therefore, even if the user mistakenly closes the door 4 while the lid 132 of the rinse agent supply unit 130 is open and attempts to perform a dishwashing operation, Fig.16 As shown, the opening and closing door 4 cannot be closed. Therefore, the user can notice that the lid 132 of the rinse agent supply unit 130 has been forgotten to be closed and close the lid 132.

[0145] In addition, even in Fig.16 In the state shown, the operation start operation is input to the display operation unit 43, and since the door opening and closing switch 18 detects that the opening and closing door 4 is not closed, the operation control unit 21a of the control device 20 also controls in a manner not to allow the operation to start. Therefore, it is possible to prevent the washing water and pollutants from penetrating into the inside of the rinse agent supply unit 130 due to the operation start in the state where the cover 132 is still open.

[0146] In addition, in the control of not permitting such operation, a control of displaying on the display unit 44 that the door 4 is not closed or a control of sounding a warning to inform the user may be combined.

[0147] In addition, the cover 132 only needs to be moved until the cover 132 interferes with the inner components such as the cutlery basket 9 , and it is not necessarily necessary to slide the cover 132 until the opening 31 a is opened.

[0148] <Main Features>

[0149] The dishwasher 101 of this embodiment includes a washing tank 3, an opening and closing door 4, and a rinse agent supply unit 130. The washing tank 3 stores tableware. The opening and closing door 4 has a rotating shaft 4a disposed on the lower end side, and is opened and closed around the rotating shaft 4a to expose the washing tank 3 to the outside space. The rinse agent supply unit 130 has an opening 31a for replenishing the rinse agent R1, an inlet 31b for injecting the rinse agent R1 into the washing tank 3, and a cover 132 for closing the opening 31a on the side of the opening and closing door 4 facing the washing tank 3. The rinse agent supply unit 130 supplies the rinse agent R1 to the washing tank 3. When the cover 132 does not close the opening 31a, the dishwasher 101 is in a state where the opening 31a is not injected. Fig.15 and Fig.16 As shown, the door 4 cannot be closed, and the operation cannot be started.

[0150] Thus, when the lid 132 that blocks the opening 31a for replenishing the rinse agent R1 to the rinse agent supply unit 130 is opened and the door 4 is closed, the lid 132 contacts the dish basket 9 (handle 9a) provided on the washing tank 3 side, and the door 4 cannot be closed.

[0151] As a result, it is possible to effectively prevent the storage tank 35 and the input tank 36 storing the rinse agent R1 from being contaminated by performing the cleaning operation while the opening 31a for supplying the rinse agent R1 is still open.

[0152] (Implementation method 3)

[0153] use Figure 17 to Figure 19 A dishwasher 201 according to still another embodiment of the present disclosure will be described below.

[0154] The dishwasher 201 of this embodiment is different from the above-mentioned embodiments 1 and 2 in that, instead of the above-mentioned embodiments 1 and 2, if the door 4 is closed while the lid 32, 132 is open, the door 4 will interfere with the inner parts such as the cutlery basket 9 and fail to close the door 4, thereby forming a state in which the operation cannot be started. Fig.19 When the cover opening / closing detection unit 239 shown in the figure electrically detects the open state of the cover parts 32, 132, the operation control unit 21a performs control to disable the start of the operation.

[0155] In addition, since the structure other than the structure related to the cover opening and closing detection unit 239 is substantially the same as that described in the above-mentioned Embodiment 1, the same reference numerals are attached to the overlapping components, and the detailed description is omitted.

[0156] In addition, in this embodiment, although the example of the rotating cover part 32 is given and described similarly to the above-mentioned Embodiments 1 and 2, even if it is a sliding cover part 132 like Embodiment 2, it can be applied similarly.

[0157] like Fig.17 As shown, dishwasher 201 of this embodiment includes rinse agent supply unit (cleaning agent supply unit) 230 having cover 32 that rotates around rotation shaft 33 to open and close opening 31a, similar to rinse agent supply unit 30 described in the first embodiment.

[0158] like Fig.17 As shown, the rinse agent supply unit 230 has a reed switch 239a and a magnet 239b.

[0159] In addition, the reed switch 239a and the magnet 239b constitute Fig.19 The cover opening and closing detection unit 239 is shown.

[0160] Reed switch 239a is provided at the upper end portion of the main body side of rinse agent supply unit 230 and is a surface facing the upper end vicinity of cover 32 when cover 32 is closed. Reed switch 239a detects a magnetic field that changes depending on the presence of magnet 239b nearby when cover 32 is opened or closed.

[0161] The magnet 239 b is provided on the end portion of the main body portion 32 a of the cover portion 32 on the side opposite to the rotation shaft 33 and on the surface facing the opening portion 31 a .

[0162] Thus, the cover opening and closing detection unit 239 can easily detect whether the magnet 239b attached to the cover 32 is in the vicinity by detecting whether the magnet 239b attached to the cover 32 is in the vicinity at the reed switch 239a. Fig.18A The lid 32 is shown in a closed state. Fig.18B Shown in the open state.

[0163] In addition, in the dishwasher 201 of the present embodiment, Fig.18B In the state where the cover 32 is opened as shown, there is no need to limit the rotation range of the cover 32 in order to mechanically form a state where the opening and closing door 4 cannot be closed. Therefore, a member corresponding to the rib described in the first embodiment is not required.

[0164] Here, in the dishwasher 201 of this embodiment, Fig.19As shown, the open / closed state of the cover portion 32 is detected using a reed switch 239a and a magnet 239b.

[0165] Thus, the operation control unit 21 a of the control device 20 receives the detection result of the cover opening and closing detection unit 239 and performs control so as not to allow the start of operation when the cover 32 is in the open state.

[0166] As a result, even when the door 4 is closed with the lid 32 opened, the operation can be prevented from starting, thereby effectively preventing the storage tank 35 and the input tank 36 storing the rinse agent R1 from being contaminated.

[0167] In addition, in the control of not permitting such operation, a control of displaying on the display unit 44 that the door 4 is not closed or a control of sounding a warning to inform the user may be combined.

[0168] <Main Features>

[0169] The dishwasher of this embodiment includes a washing tank 3, an opening and closing door 4, and a rinse agent supply unit 230. The washing tank 3 stores tableware. The opening and closing door 4 has a rotating shaft 4a disposed on the lower end side, and is opened and closed around the rotating shaft 4a to expose the washing tank 3 to the outside space. The rinse agent supply unit 230 has an opening 31a for replenishing the rinse agent R1, an inlet 31b for injecting the rinse agent R1 into the washing tank 3, and a cover 32 for closing the opening 31a on the side of the opening and closing door 4 facing the washing tank 3. The rinse agent supply unit 230 supplies the rinse agent R1 to the washing tank 3. If the lid 32 does not close the opening 31a, the dishwasher 1 Fig.19 When the lid opening / closing detection unit 239 detects that the lid 32 is opened, the operation control unit 21a controls so as not to start the washing operation, thereby putting the operation in a non-startable state.

[0170] Thus, when the cover 32 that blocks the opening 31a for replenishing the rinse agent R1 to the rinse agent supply portion 230 is opened, the open state of the cover 32 is detected and control is performed in a manner that does not allow the operation to start, thereby effectively preventing the storage tank 35 and the input tank 36 that store the rinse agent R1 from being contaminated when the cleaning operation is performed while the opening 31a for supplying the rinse agent R1 is still open.

[0171] [Other embodiments]

[0172] As mentioned above, although one embodiment of the present disclosure has been described, the present disclosure is not limited to the above embodiment, and various modifications can be made within the scope not departing from the gist of the disclosure.

[0173] (A)

[0174] In the above-described first and second embodiments, the rinse agent supply unit 30, 130 for supplying the rinse agent R1 and attached to the inner surface 4b of the door 4 of the dishwasher 1 is described as an example of the detergent supply unit of the present disclosure. However, the present disclosure is not limited thereto.

[0175] For example, the structure of the cleaning agent supply unit of the present disclosure may be applied to the structure of the detergent supply unit storing detergent. Alternatively, the structure of the present disclosure may be applied to both the detergent supply unit and the rinse agent supply unit.

[0176] In this case, as in the above-described embodiment, it is possible to effectively prevent the tank storing the detergent from being contaminated by performing the cleaning operation while the opening for supplying the detergent is still open.

[0177] (B)

[0178] In the first embodiment, the rib 34 for limiting the maximum angle of the lid 32 with respect to the inner surface of the door 4 when the lid 32 included in the rinse agent supply unit 30 is opened is provided on the rinse agent supply unit 30 side. However, the present disclosure is not limited thereto.

[0179] For example, a configuration may be adopted in which a rib that restricts the maximum angle of the cover portion is provided on the inner surface side of the opening and closing door.

[0180] (C)

[0181] In the above-described first and second embodiments, an example of a structure in which when the door 4 is closed with the lid 32 opened, interference occurs with the dish basket 9 provided on the washing tank 3 side. However, the present disclosure is not limited thereto.

[0182] For example, when the door is to be closed with the lid open, the object that interferes with the lid may not be the cutlery basket but other internal components of the box.

[0183] (D)

[0184] In the above-mentioned Embodiment 2, an example in which the lid 132 is slid in the up-down direction to open and close the opening 31 a is described. However, the present disclosure is not limited to this.

[0185] For example, the cover may be configured to slide in the left-right direction or in the diagonal direction.

[0186] In this case as well, the lid portion in the open state by sliding movement interferes with the internal components of the box, and the openable door cannot be closed, so that the same effects as those of the above-described embodiment can be obtained.

[0187] (E)

[0188] In the above-described third embodiment, the reed switch 239a and the magnet 239b are used as the cover opening / closing detection unit 239 for detecting the opening / closing state of the cover 32, 132 included in the rinse agent supply unit 30. However, the present disclosure is not limited thereto.

[0189] For example, as the detection unit for detecting the opening and closing of the cover, in addition to the combination of a reed switch and a magnet, another structure such as a contact switch for detecting the contact with the tip end portion of the cover may be adopted.

[0190] (F)

[0191] In the above-described embodiment, an example has been described in which the dishwasher 1 performs the washing step of washing dishes placed in the washing tub 3 and the drying step of drying the washed dishes. However, the present disclosure is not limited thereto.

[0192] For example, the structure of the present disclosure may be applied to a dishwasher that does not have a drying function and performs only a washing process.

[0193] (G)

[0194] In the above embodiment, the dishwasher 1 is described as an example in which the rotary door 4 for opening and closing the opening 5 located on the front surface of the washing tank 3 is installed. However, the present disclosure is not limited to this.

[0195] For example, the dishwasher may be provided with a pull-out type (a type in which the upper surface is opened by pulling the front surface door forward) opening and closing door.

[0196] Moreover, in this case, the rinse agent supply part which supplies a rinse agent can be appropriately changed to the appropriate position of the inner surface of an opening and closing door.

[0197] (H)

[0198] In the above-mentioned embodiment, an example of a built-in dishwasher installed in a kitchen or the like is given and described. However, the present disclosure is not limited thereto.

[0199] For example, the structure of the present disclosure may be applied to a fixed-type dishwasher installed on the ceiling of a kitchen.

[0200] <Note>

[0201] According to the description of the above embodiments, the following technology is disclosed.

[0202] (Technology 1)

[0203] The tableware washing machine of the present technology comprises:

[0204] a washing tank, which stores tableware;

[0205] an opening and closing door having a rotation shaft disposed at a lower end side and opening and closing around the rotation shaft to expose the cleaning tank to an external space; and

[0206] a detergent supply unit, which has an opening for replenishing detergent or rinse agent, an inlet for injecting the detergent or rinse agent into the washing tank, and a cover for closing the opening on the side of the opening and closing door facing the washing tank, and supplies the detergent or rinse agent into the washing tank,

[0207] When the lid does not close the opening, the door cannot be closed and / or the operation cannot be started.

[0208] According to this configuration, it is possible to effectively prevent the inside of the detergent supply unit for supplying detergent or rinse agent from being contaminated by performing the washing operation while the opening for supplying detergent or rinse agent is still open.

[0209] (Technique 2)

[0210] The dishwasher according to technique 1, wherein:

[0211] The dishwasher further comprises an inner tank component arranged inside the washing tank.

[0212] When the cover is opened, the cover interferes with the internal components of the box during the process of closing the opening and closing door.

[0213] According to this structure, the cover part physically interferes with the internal components of the box and cannot be closed during the process of closing the opening and closing door, thereby effectively preventing the interior of the cleaning agent supply part from being contaminated by the cleaning operation when the opening is still open.

[0214] (Technique 3)

[0215] The dishwasher according to technique 2, wherein:

[0216] The cleaning agent supply unit further includes a rotation shaft for rotating the cover.

[0217] The cover rotates toward the cleaning tank about the rotation axis to open and close the opening.

[0218] According to this configuration, the opening portion can be easily switched between the open state and the closed state by rotating the cover portion about the rotation axis.

[0219] (Technique 4)

[0220] The dishwasher according to technique 3, wherein:

[0221] The dishwasher further comprises a rib disposed adjacent to the rotation shaft.

[0222] The cover part abuts against the rib in the open state of the opening part, and the maximum rotation range is restricted.

[0223] According to this configuration, when the lid is opened to open the opening, the maximum rotation range of the lid is limited by the rib, so that the lid can be easily placed in a state where the lid is most likely to interfere with the internal components.

[0224] (Technique 5)

[0225] The dishwasher according to technique 2, wherein:

[0226] The cleaning agent supply unit further includes a groove for sliding the cover.

[0227] The cover part slides along the groove part to open and close the opening part.

[0228] According to this configuration, the lid is opened and closed by sliding along the groove, so that the opening can be easily switched between the open state and the closed state.

[0229] (Technique 6)

[0230] A dishwasher according to any one of techniques 1 to 5, wherein:

[0231] The dishwasher further includes a detection unit that detects an open state or a closed state of the lid.

[0232] According to this configuration, it is possible to easily detect whether the cover is in a closed state or an open state.

[0233] (Technique 7)

[0234] The dishwasher according to technique 6, wherein:

[0235] The dishwasher further includes an operation control unit configured to perform control so as not to allow start of operation when the detection unit detects that the lid is in the open state.

[0236] According to this configuration, the operation control unit can effectively prevent the cleaning operation from being performed with the opening portion still open, thereby preventing the interior of the cleaning agent supply portion from being contaminated.

[0237] (Technology 8)

[0238] The dishwasher according to technology 6 or 7, wherein:

[0239] The detection unit detects an open state or a closed state of the cover by detecting a change in a magnetic field.

[0240] According to this configuration, the open / closed state of the cover can be detected with a simple configuration.

[0241] (Technique 9)

[0242] A dishwasher according to any one of techniques 1 to 8, wherein:

[0243] The cleaning agent supply unit further includes a storage tank communicating with the opening and storing the detergent or the rinse agent, and an input tank communicating with the storage tank and storing a single amount of the detergent or the rinse agent when the opening and closing door is opened and closed.

[0244] According to this configuration, a single amount of detergent or the like is automatically stored in the input tank when the door is opened and closed, thereby reducing the user's labor and time.

[0245] (Technology 10)

[0246] The dishwasher according to technique 9, wherein:

[0247] The cleaning agent supply unit further includes an injection valve that opens and closes the injection port to inject the detergent or the rinse agent from the injection tank into the cleaning tub when the detergent or the rinse agent is injected.

[0248] According to this configuration, by controlling the injection valve, detergent or the like can be injected into the washing tank at an appropriate timing.

[0249] (Technology 11)

[0250] The dishwasher according to technique 10, wherein:

[0251] The dishwasher also features:

[0252] a water temperature detection unit configured to detect the temperature of the washing water in the washing tank; and

[0253] The injection control unit controls the injection valve to be in an open state when the water temperature detection unit detects that the water temperature has reached a predetermined temperature.

[0254] According to this configuration, by controlling the injection valve to be in an open state when the water temperature reaches a predetermined temperature, detergent and rinse agent can be injected into the washing tub at an appropriate timing according to the water temperature during washing, for example.

[0255] (Technology 12)

[0256] The dishwasher according to technique 11, wherein:

[0257] The injection control unit controls the number of times the injection valve is opened and closed to adjust the amount of the detergent or the rinse agent injected from the injection valve.

[0258] According to this configuration, for example, an appropriate amount of detergent or rinse agent can be put into the washing tank according to the amount of dishes, the setting mode, and the like.

[0259] (Technology 13)

[0260] A dishwasher according to any one of techniques 10 to 12, wherein:

[0261] The cleaning agent supply unit further includes a float member provided inside the storage tank and configured to detect that a remaining amount of the detergent or the rinse agent stored inside the storage tank is insufficient.

[0262] According to this configuration, by using the float member that floats on the detergent or rinse agent stored in the storage tank, the remaining amount in the storage tank can be easily detected.

[0263] (Technology 14)

[0264] A dishwasher according to any one of Techniques 10 to 13, wherein:

[0265] When the injection valve is in an open state, the detergent or the rinse agent is injected into the cleaning tank from the injection port due to gravity.

[0266] According to this configuration, since a pump or the like for injecting detergent or rinse agent is not required, detergent or rinse agent can be injected into the washing tank with a simple configuration.

[0267] Industrial Applicability

[0268] The dishwasher disclosed in the present invention can effectively prevent the interior of the detergent supply unit for supplying detergent or rinse agent from being contaminated when the cleaning operation is performed while the opening for supplying detergent or rinse agent is still open. Therefore, it can be widely used in various dishwashers regardless of the setting method.

Claims

1. A dishwashing machine, wherein: The dishwasher comprises: a washing tank, which stores tableware; an opening and closing door having a rotation shaft disposed at a lower end side and opening and closing around the rotation shaft to expose the cleaning tank to an external space; and a cleaning agent supply unit, which has an opening for replenishing detergent or rinse agent, an inlet for injecting the detergent or rinse agent into the cleaning tank, and a cover for closing the opening on the side of the opening and closing door facing the cleaning tank, and the cleaning agent supply unit supplies the detergent or rinse agent to the cleaning tank, When the lid does not close the opening, the door cannot be closed and / or the operation cannot be started.

2. The dishwasher according to claim 1, wherein: The dishwasher further comprises an inner tank component arranged inside the washing tank. When the cover is opened, the cover interferes with the internal components of the box during the process of closing the opening and closing door.

3. The dishwasher according to claim 2, wherein: The cleaning agent supply unit further includes a rotation shaft for rotating the cover. The cover rotates toward the cleaning tank about the rotation axis to open and close the opening.

4. The dishwasher according to claim 3, wherein: The dishwasher further comprises a rib disposed adjacent to the rotation shaft. The cover part abuts against the rib in the open state of the opening part, and the maximum rotation range is restricted.

5. The dishwasher according to claim 2, wherein: The cleaning agent supply unit further includes a groove for sliding the cover. The cover part slides along the groove part to open and close the opening part.

6. The dishwasher according to claim 1 or 2, wherein: The dishwasher further includes a detection unit that detects an open state or a closed state of the lid.

7. The dishwasher according to claim 6, wherein: The dishwasher further includes an operation control unit configured to perform control so as not to allow start of operation when the detection unit detects that the lid is in the open state.

8. The dishwasher according to claim 6, wherein: The detection unit detects an open state or a closed state of the cover by detecting a change in a magnetic field.

9. The dishwasher according to claim 1 or 2, wherein: The cleaning agent supply unit further includes a storage tank communicating with the opening and storing the detergent or the rinse agent, and an input tank communicating with the storage tank and storing a single amount of the detergent or the rinse agent when the opening and closing door is opened and closed.

10. The dishwasher according to claim 9, wherein: The cleaning agent supply unit further includes an injection valve that opens and closes the injection port to inject the detergent or the rinse agent from the injection tank into the cleaning tub when the detergent or the rinse agent is injected.

11. The dishwasher according to claim 10, wherein: The dishwasher also features: a water temperature detection unit configured to detect the temperature of the washing water in the washing tank; and The injection control unit controls the injection valve to be in an open state when the water temperature detection unit detects that the water temperature has reached a predetermined temperature.

12. The dishwasher according to claim 11, wherein: The injection control unit controls the number of times the injection valve is opened and closed to adjust the amount of the detergent or the rinse agent injected from the injection valve.

13. The dishwasher according to claim 10, wherein: The cleaning agent supply unit further includes a float member provided inside the storage tank and configured to detect that a remaining amount of the detergent or the rinse agent stored inside the storage tank is insufficient.

14. The dishwasher according to claim 10, wherein: When the injection valve is in an open state, the detergent or the rinse agent is injected into the cleaning tank from the injection port due to gravity.

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