JP2023069072A - Washer - Google Patents

Abstract

To provide a washer that can restrain washing water from leaking from a washing tank while restraining an increase in cost.SOLUTION: A tableware washer 100 comprises: a washing tank 20 for storing washing water; a washing water heater 25A arranged in the washing tank 20, attached to a side part 20B of the washing tank 20, and for heating the washing water; a washing water temperature sensor 25B for detecting the temperature of the washing water; and a bracket 25D supporting the washing water heater 25A, in contact with the washing temperature sensor 25B, and having a heat transfer property. The bracket 25D is attached to an inside surface of the washing tank 20.SELECTED DRAWING: Figure 4

Description

The present invention relates to washing machines.

Japanese Laid-Open Patent Publication No. 2002-201002 includes a cleaning tank that stores cleaning water for cleaning an object to be cleaned, a heating unit (heater) that heats the cleaning water, and a detection unit (temperature sensor) that detects the temperature of the cleaning water. A washing machine is disclosed. In this washing machine, the heating section and the detection section are connected by a connecting section made of a heat conductive metal.

JP 2004-340625 A

In the washing machine, the length of the heating part is sometimes increased in order to secure the heating capacity of the washing water. In such a configuration in which the heating unit is installed inside the cleaning tank, when an operator touches the heating unit during maintenance of the heating unit, a large load is applied to the installation portion of the heating unit. Therefore, there is a possibility that deformation or the like may occur in the attachment portion, and washing water may leak from there. Therefore, it is possible to adopt a configuration in which a dedicated mounting portion for supporting the heating portion is provided, but if a mounting portion is newly provided, the cost increases.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a washing machine capable of suppressing leakage of washing water from a washing tank while suppressing an increase in cost.

A washing machine according to the present invention is a washing machine for washing an object to be washed contained in a washing chamber, comprising a washing tank for storing washing water for washing the object to be washed, a heating unit that is attached to the side of the tank and that heats the wash water; a detection unit that detects the temperature of the wash water; a mounting unit that supports the heating unit and is in contact with the detection unit and has heat conductivity; and the attachment portion is attached to the inner surface of the washing tank.

In the washing machine according to the present invention, the heating part is supported by the mounting part, and the mounting part is attached to the inner surface of the washing tank. Accordingly, even if a load is applied to the heating unit during maintenance of the heating unit, it is possible to prevent the entire load from being applied to the mounting portion of the heating unit. Therefore, it is possible to suppress the occurrence of deformation or the like in the attachment portion, and thus it is possible to suppress leakage of washing water therefrom. Moreover, the detection part is in contact with the heat-conducting mounting part. Thereby, the detection unit can accurately detect the temperature of the heating unit. In this way, the mounting portion has two functions, that is, the function of supporting the heating portion and the function of transmitting the heat of the heating portion to the detecting portion. That is, the mounting part has two functions with one component. Therefore, the heating section can be supported without increasing the number of parts. Therefore, it is possible to prevent washing water from leaking from the washing tank while suppressing an increase in cost.

The washing machine according to the present invention forms a space extending in a first direction and a second direction orthogonal to the first direction when viewed from the vertical direction, and a washing tank is disposed below the washing chamber. The machine room is provided with a cover that opens the space to the outside of the machine room on one side in the first direction, and the heating unit extends in the first direction and a second portion connected to the first portion and extending in the second direction, the second portion being attached to one side in the first direction, and the attachment The portion may be attached to the inner surface on one side in the first direction. In this configuration, by removing the cover provided on one side of the machine room in the first direction to open the machine room, it is possible to work on the portion where the heating unit is attached to the cleaning tank. It is also possible to work on the fittings on one side of the wash tank. Therefore, the heating section can be attached and detached on one side of the machine room from which the cover is removed, and the attachment section work can be performed on one side of the cleaning tank, thereby improving maintainability.

In the washing machine according to the present invention, the washing tank may extend longitudinally in the first direction, and the first portion may be arranged on one side of the second direction in the washing tank. With this arrangement, the first portion of the heating portion extends in the longitudinal direction of the washing tank. Therefore, the heating capacity can be secured in the heating unit. Further, since the first portion is arranged in the washing tank on one side in the second direction, even if the configuration in which the first portion extends in the first direction is adopted, the heating portion is arranged in the washing tank. does not interfere with the layout of the members.

ADVANTAGE OF THE INVENTION According to this invention, it can suppress that wash water leaks from a washing tank, suppressing the increase in cost.

FIG. 1 is a perspective view of a dishwasher according to one embodiment. FIG. 2 is a diagram showing a schematic configuration of the dishwasher. FIG. 3 is a plan view showing the configuration inside the machine room. FIG. 4 is a perspective view showing the wash water heater and bracket in the wash tank. 5(a) and 5(b) are diagrams showing the mounting structure of the wash water heater. 6(a), 6(b) and 6(c) are diagrams showing the first member of the bracket. 7(a), 7(b) and 7(c) are diagrams showing the second member of the bracket.

Hereinafter, a dishwasher (washing machine) 100 according to one embodiment will be described with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and overlapping descriptions are omitted. For convenience of explanation, the front-rear direction (first direction), the left-right direction (second direction), and the up-down direction are set in FIG.

As shown in FIG. 1, a dishwasher 100 according to one embodiment is an under-counter type washing machine in which a door portion 15 is provided on the front surface of a washing chamber 1B. As shown in FIGS. 1 and 2, the dishwasher 100 includes a main body 1, a door 15, a washing tank 20, an upper nozzle 3, a lower nozzle 4, a washing pump 5, and a rinsing tank. 6, a rinse pump 7, a detergent supply pump 8, a rinse agent supply pump 9 and a controller 10.

The main body 1 includes a frame (not shown), an exterior panel 11 made of stainless steel, and an interior panel 2 . The exterior panel 11 includes a pair of side panels 11A, 11A forming side surfaces in the left-right direction, an upper panel 11B, an upper front panel 11C, a lower front panel (cover) 11D, a rear panel 11E, have. At least the lower front panel 11D is provided so as to be easily removable from the frame. Leg portions 12 are attached to the four corners of the lower portion of the main body portion 1 . An operation unit 13 for operating various operations of the dishwasher 100 is provided on the upper front panel 11C.

The operation unit 13 is a part for performing input operations for operation modes and various settings. The operation unit 13 of this embodiment is composed of a liquid crystal screen and a tempered glass (electrostatic switch) covering it. The operator can perform various operations by touching the tempered glass that covers the LCD screen. Note that the operation unit 13 may be configured with various buttons and a touch panel, or may be configured with a remote controller, an operation terminal, or the like that is separate from the main unit 1 .

A machine chamber 1A is formed in the lower region of the main body 1 to accommodate a cleaning tank 20, a cleaning pump 5, a rinsing tank 6, a rinsing pump 7, a detergent supply pump 8, and a rinse agent supply pump 9. It is 1 A of machine rooms form the space extended in the front-back direction and left-right direction, when it sees from a perpendicular direction. A washing chamber 1B is formed in the upper region of the main body 1 to accommodate racks in which tableware (objects to be washed) D and the like are set. The washing chamber 1B is a space above the washing tank 20 and is configured by the interior panel 2. As shown in FIG. The interior panel 2 mainly has a pair of side panels 2A, 2A, a top panel 2B and a rear panel (not shown). Rack rails 23 for supporting the rack are formed on the inner surfaces of the pair of side panels 2A, 2A. The body portion 1 is formed with an opening portion 1C through which a rack on which tableware D and the like are set is taken in and out of the washing chamber 1B. The rack rails 23 may be formed integrally with the side panels 2A, 2A by drawing, or may be formed by attaching other members to the inner surfaces of the side panels 2A, 2A.

The door portion 15 is arranged outside the opening portion 1C. The door portion 15 is provided so that the opening portion 1C can be opened and closed, and when the door portion 15 is opened, the cleaning chamber 1B is opened to the outside of the main body portion 1. The door portion 15 is rotatably provided at the lower end of the door portion 15 about an axis extending in the left-right direction as a rotation axis. The operator can open the cleaning chamber 1B by tilting the handle 15A provided at the upper end of the door portion 15 toward the front.

The cleaning tank 20 is provided below the cleaning chamber 1B. The washing tank 20 stores washing water used for washing the dishes D and the like housed in the washing chamber 1B. The washing water is water that is jetted into the washing chamber 1B in the washing process. The washing tank 20 separates the machine room 1A and the washing room 1B, and is a part that receives and guides the water that has fallen after washing or rinsing the tableware D, which is sprayed from the upper nozzle 3 and the lower nozzle 4, to a reservoir. It has a water receiving part (not shown) and a storage part that stores the washing water supplied to the upper nozzle 3 and the lower nozzle 4 by the washing pump 5 . In the present embodiment, the cleaning tank 20 means a reservoir unless otherwise specified. The cleaning tank 20 extends longitudinally in the front-rear direction. The cleaning tank 20 is provided with a cleaning water detection unit 24, a cleaning water heater (heating unit) 25A, and a cleaning water temperature sensor (detection unit) 25B.

The wash water detector 24 detects the water level of wash water stored in the wash tank 20 . The washing water detector 24 is, for example, a switch that turns ON when the water level in the washing tank 20 exceeds the constant water level H1 and turns OFF when the water level is below the constant water level H1. The controller 10 acquires the detection result of the cleaning water detection unit 24 . If the cleaning pump 5 , which will be described in detail later, sucks air during operation, so-called air entrainment occurs, and cleaning water cannot be jetted from the upper nozzle 3 and the lower nozzle 4 . In one embodiment, suction of air by the cleaning pump 5 is prevented by stopping the operation of the cleaning pump 5 when the cleaning water detection unit 24 is turned off during operation.

The washing water heater 25A heats the washing water stored in the washing tank 20 in order to improve the sterilization ability and washing ability. Washing water temperature sensor 25B detects the temperature of the washing water stored in washing tank 20 . The cleaning water temperature sensor 25B is, for example, a thermistor. The cleaning water temperature sensor 25B is attached to a side portion 20B (described later) of the cleaning tank 20 . A detection result by the cleaning water temperature sensor 25B is acquired by the controller 10 . The controller 10 controls ON/OFF of the washing water heater 25A. For example, the washing water heater 25A is controlled by the controller 10 so as to maintain the washing water at a predetermined temperature based on the water temperature detected by the washing water temperature sensor 25B.

The cleaning tank 20 is composed of a bottom portion 20A and side portions 20B. A circular through-hole 20b is formed in the bottom portion 20A of the cleaning tank 20 . The through-hole 20b is a circular plate-shaped member having a plurality of elongated holes formed through it in the thickness direction, and is covered with a pump guard 26 that prevents foreign matter from entering. The through hole 20b is connected to the cleaning pump 5 via the connecting portion 50. As shown in FIG. The connecting portion 50 includes a first connecting hole 50 a connected to the through hole 20 b , a drain hole 50 b connected to the drain pipe 28 for discharging water to the outside of the main body 1 , and a second connecting hole 50 b connected to the cleaning pump 5 . Two connection holes 50c are formed. The connection part 50 may be configured integrally with the cleaning pump 5 as part of a casing that constitutes the cleaning pump 5 , or may be a member that connects the cleaning tank 20 and the cleaning pump 5 separately from the cleaning pump 5 . may be provided.

The cleaning tank 20 is provided with an overflow pipe 27 extending vertically. The overflow pipe 27 allows the water exceeding a predetermined water level in the cleaning tank 20 to flow in from the upper end and drain it to the outside of the cleaning tank 20 to regulate the water level of the cleaning water stored in the cleaning tank 20 . The lower end of the overflow pipe 27 is detachably inserted into a drain hole 50b formed in the connecting portion 50 through a burred pump guard 26 covering the through hole 20b. The bottom end of the overflow pipe 27 is removed from the drain hole 50b, so that the cleaning water stored in the cleaning tank 20 can be discharged through the through hole 20b and the drain hole 50b.

The upper nozzle 3 is provided above the cleaning chamber 1B. The upper nozzle 3 is rotatably provided on an upper support portion 21A provided above the cleaning chamber 1B. The upper nozzle 3 has a body portion 30 that extends radially from a base end, which is the center of rotation of the rotation shaft of the upper nozzle 3, to a tip end. The main body 30 includes a washing injection hole 31 for injecting the washing water stored in the washing tank 20 , a washing channel 32 extending from the center of rotation to the washing injection hole 31 and through which the washing water flows, and a rinsing tank 6 . A rinsing injection hole 33 for injecting the rinsing water stored therein and a rinsing flow path 34 extending from the rotation center to the rinsing injection hole 33 and through which the rinsing water flows are integrally formed. The upper nozzle 3 rotates when the flow of washing water generated in the washing channel 32 or the flow of rinsing water generated in the rinsing channel 34 is converted into rotational force. The upper nozzle 3 is connected to an upper washing pipe 58 that supplies washing water to the washing channel 32 and an upper rinsing pipe 78 that supplies rinsing water to the rinsing channel 34 .

The lower nozzle 4 is provided below the cleaning chamber 1B. The lower nozzle 4 is rotatably provided on a lower support portion 21B provided below the cleaning chamber 1B. The lower nozzle 4 has a body portion 40 that extends radially from the base end, which is the center of rotation of the rotating shaft of the lower nozzle 4, to the tip end. The main body 40 includes a washing injection hole 41 for injecting the washing water stored in the washing tank 20 , a washing channel 42 extending from the center of rotation to the washing injection hole 41 and through which the washing water flows, and a rinsing tank 6 . A rinsing injection hole 43 for injecting the rinsing water stored therein and a rinsing flow path 44 extending from the rotation center to the rinsing injection hole 43 and through which the rinsing water flows are integrally formed. The lower nozzle 4 is rotated by converting the flow of washing water generated in the washing channel 42 or the flow of rinsing water generated in the rinsing channel 44 into rotational force. The lower nozzle 4 is connected to a lower cleaning pipe 59 that supplies cleaning water to the cleaning channel 42 and a lower rinsing pipe 79 that supplies rinsing water to the rinsing channel 44 .

The dishes D arranged on the dish rack are sprayed with washing water by the upper nozzle 3 and the lower nozzle 4 in the washing process, and are sprayed with rinse water by the upper nozzle 3 and the lower nozzle 4 in the rinsing process.

The washing pump 5 is arranged in the machine room 1A. The washing pump 5 sends the washing water stored in the washing tank 20 to the washing chamber 1B in which the dishes D and the like are accommodated. The washing pump 5 takes in the washing water from the washing tank 20 via the connecting portion 50 and sends the washing water to the upper nozzle 3 and the lower nozzle 4 . An upper washing pipe 58 is connected to the first discharge port of the washing pump 5 . The upper cleaning pipe 58 is connected to the upper nozzle 3 . A lower cleaning pipe 59 is connected to the second outlet of the cleaning pump 5 . The lower cleaning pipe 59 is connected to the lower nozzle 4 .

The rinsing tank 6 is arranged in the machine room 1A. The rinsing tank 6 stores rinsing water used for rinsing the tableware D and the like. The rinsing water is water that is jetted into the washing chamber 1B in the initial hot water supply process and the rinsing process. Water is supplied to the rinsing tank 6 from an external water source through a water supply pipe 60 . The water supply pipe 60 is provided with a strainer 60A. A valve 60B is provided downstream of the strainer 60A in the water supply pipe 60 .

The rinsing tank 6 is provided with a rinsing water detection section 62, an overflow section 63, a rinsing water heater 64A, and a rinsing water temperature sensor 64B.

The rinsing water detector 62 is a switch for detecting that the water stored in the rinsing tank 6 is at the constant water level H2. The detection result of the rinse water detection unit 62 is acquired by the controller 10 . Valve 60B is controlled by controller 10 . For example, the controller 10 opens and closes the valve in conjunction with detection of the constant water level H2 by the rinsing water detection unit 62, and controls the valve 60B so as to maintain a constant water level of the rinsing water stored in the rinsing tank 6. .

The overflow part 63 discharges water exceeding the full water level in the rinsing tank 6 . The rinsing tank 6 is a closed tank, and exceeds the full water level, for example, when the valve 60B is abnormally closed. The rinsing water heater 64A heats the rinsing water stored in the rinsing tank 6 to improve sterilization and rinsing performance. Rinse water temperature sensor 64B detects the temperature of the rinse water. A detection result by the rinse water temperature sensor 64B is acquired by the controller 10 . The controller 10 controls ON/OFF of the rinse water heater 64A. For example, the rinse water heater 64A is controlled by the controller 10 to maintain the rinse water at a predetermined temperature based on the water temperature sensed by the rinse water temperature sensor 64B.

The rinsing pump 7 sends out the rinsing water stored in the rinsing tank 6 to the washing chamber 1B that accommodates the tableware D and the like. The rinsing pump 7 takes in rinsing water from the rinsing tank 6 and delivers the rinsing water to the upper nozzle 3 and the lower nozzle 4 . An upper rinsing pipe 78 and a lower rinsing pipe 79 are connected to the discharge port of the rinsing pump 7 via a rinsing pipe 77 . The upper rinse pipe 78 is connected to the upper nozzle 3 . A lower rinse pipe 79 is connected to the lower nozzle 4 .

A detergent supply pump 8 is arranged in the machine room 1A. The detergent supply pump 8 supplies the detergent stored in the detergent tank 8A to the washing chamber 1B through the pipe 8B. The detergent discharged into the cleaning chamber 1B flows into the cleaning tank 20 and mixes with the cleaning water. The rinse agent supply pump 9 is arranged in the machine room 1A. The rinse agent supply pump 9 supplies the rinse agent stored in the rinse agent tank 9A to the rinse pipe 77 through the pipe 9B. The rinsing agent supplied to the rinsing pipe 77 is mixed with the rinsing water and supplied to the washing chamber 1B via the upper nozzle 3 and the lower nozzle 4 .

The controller 10 is arranged between the upper panel 11B of the main body 1 and the upper panel 2B that constitutes the cleaning chamber 1B. The controller 10 controls overall operations in the dishwasher 100 . Controller 10 is a computer system or processor implemented on an integrated circuit. The controller 10 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an input/output interface, and the like. Various programs or data are stored in the ROM.

Next, the mounting structure of the wash water heater 25A will be described. As shown in FIG. 3, the washing water heater 25A is arranged on the right side in the horizontal direction in the washing tank 20. As shown in FIG. The washing water heater 25A has a first portion 25Aa extending in the front-rear direction of the washing tank 20 and a second portion 25Ab connected to the first portion 25Aa and extending in the left-right direction of the washing tank 20. are doing. The first portion 25Aa is longer than 1/2 of the total length of the cleaning tank 20 in the front-rear direction and extends linearly. The first portion 25Aa and the second portion 25Ab are cylindrical.

The second portion 25Ab is connected to the front end of the first portion 25Aa. That is, the second portion 25Ab is located on the front side in the front-rear direction. A portion of the second portion 25Ab (the end connected to the first portion 25Aa) is curved. The second portion 25Ab is attached to the side portion 20B of the cleaning tank 20. As shown in FIG. Specifically, the second portion 25Ab is attached to the front side of the right side portion 20B of the cleaning tank 20 . As shown in FIG. 4, the second portion 25Ab is attached to the side portion 20B of the cleaning tank 20 by an attachment structure 25C. The end of the second portion 25Ab (the end opposite to the end connected to the first portion 25Aa) protrudes from the outer surface of the side portion 20B of the cleaning tank 20 and is positioned outside the cleaning tank 20. .

As shown in FIGS. 5(a) and 5(b), the mounting structure 25C has a flange 25Ca, a threaded portion 25Cb, a seal 25Cc, and a nut 25Cd. The flange 25Ca is provided on the proximal end side of the second portion 25Ab. The flange 25Ca protrudes radially outward from the second portion 25Ab. The flange 25Ca is arranged inside the cleaning tank 20 . The threaded portion 25Cb is provided at the end of the second portion 25Ab (the end opposite to the end connected to the first portion 25Aa). A connecting portion (not shown) connected to the wiring C is provided inside the screw portion 25Cb. A seal 25Cc is positioned between the flange 25Ca and the side 20B of the wash tank 20. As shown in FIG. The seal 25Cc is, for example, rubber packing. The nut 25Cd is screwed onto the threaded portion 25Cb to fix the wash water heater 25A to the side portion 20B.

When the washing water heater 25A is attached to the washing tank 20, the screw portion 25Cb of the mounting structure 25C is passed through the mounting hole 20Ba of the side portion 20B, and the nut 25Cd is attached from the outside of the washing tank 20. As a result, the washing water heater 25A is fixed to the side portion 20B of the washing tank 20. As shown in FIG. After that, the wiring C is connected to the connecting portion of the washing water heater 25A. When removing the washing water heater 25A from the side portion 20B of the washing tank 20, the wiring C is removed and the nut 25Cd of the mounting structure 25C is removed. As a result, the fixation of the cleansing water heater 25A to the side portion 20B is released.

As shown in FIG. 4, the wash water heater 25A is supported by a bracket (mounting portion) 25D. The bracket 25D is attached to the inner surface of the side portion 20B of the cleaning tank 20. As shown in FIG. Bracket 25D has heat conductivity. The bracket 25D is made of metal, for example.

The bracket 25D has a first member 25E and a second member 25F. As shown in FIGS. 6(a), 6(b), and 6(c), the first member 25E has a fixing portion 25Ea, a first contact portion 25Eb, and a first holding portion 25Ec. are doing. The fixed portion 25Ea, the first contact portion 25Eb, and the first holding portion 25Ec are integrally formed of metal.

The fixing portion 25Ea is a portion that fixes the bracket 25D to the side portion 20B of the cleaning tank 20 . The fixing portion 25Ea is fixed to the inner surface of the side portion 20B of the cleaning tank 20. As shown in FIG. The fixed portion 25Ea is fixed (joined) to the side portion 20B by, for example, welding.

The first contact portion 25Eb is a portion that contacts the cleaning water temperature sensor 25B. The first contact portion 25Eb is connected to the lower end of the fixed portion 25Ea and extends substantially perpendicular to the fixed portion 25Ea. A first groove portion 25Ed is provided in the first contact portion 25Eb. The first groove portion 25Ed is protruded downward and has a semicircular cross section. The first groove portion 25Ed supports the cleaning water temperature sensor 25B from below. The first groove portion 25Ed sandwiches the cleaning water temperature sensor 25B together with a second groove portion 25Fc (described later) of the second member 25F. The first contact portion 25Eb is provided with first screw holes 25Ee and 25Ef. Screws N are screwed into the first screw holes 25Ee and 25Ef.

The first holding portion 25Ec is a portion that holds the cleansing water heater 25A. The first holding portion 25Ec extends downward from the end of the first contact portion 25Eb. A portion of the first holding portion 25Ec has a shape corresponding to the outer shape of the first portion 25Aa of the cleansing water heater 25A. A portion of the first holding portion 25Ec has a curved shape. The first holding portion 25Ec supports the front end of the first portion 25Aa. The first holding portion 25Ec supports the wash water heater 25A from below. The first holding portion 25Ec sandwiches the washing water heater 25A together with a second holding portion 25Fb (described later) of the second member 25F.

As shown in FIGS. 7A, 7B, and 7C, the second member 25F has a second contact portion 25Fa and a second holding portion 25Fb. The second contact portion 25Fa and the second holding portion 25Fb are integrally formed of metal.

The second contact portion 25Fa is a portion that contacts the cleaning water temperature sensor 25B. The second contact portion 25Fa is arranged on the first contact portion 25Eb. A second groove portion 25Fc is provided in the second contact portion 25Fa. The second groove portion 25Fc is provided in an upward convex shape, and has a semicircular cross section. The second groove portion 25Fc covers the cleaning water temperature sensor 25B from above. The second groove portion 25Fc sandwiches the cleaning water temperature sensor 25B together with the first groove portion 25Ed of the first member 25E. The second contact portion 25Fa is provided with second screw holes 25Fd and 25Fe. Screws N are screwed into the second screw holes 25Fd and 25Fe.

The second holding portion 25Fb is a portion that holds the cleansing water heater 25A. The second holding portion 25Fb extends from the end of the second contact portion 25Fa. A portion of the second holding portion 25fb has a shape corresponding to the outer shape of the first portion 25Aa of the cleansing water heater 25A. A portion of the second holding portion 25Fb has a curved shape. The second holding portion 25Fb covers the wash water heater 25A from above. The second holding portion 25Fb sandwiches the washing water heater 25A together with the first holding portion 25Ec of the first member 25E.

The first member 25E and the second member 25F are fixed with screws N in the bracket 25D. The screw N is screwed into the first threaded hole 25Ee of the first member 25E and the second threaded hole 25Fd of the second member 25F, and is threaded into the first threaded hole 25Ef of the first member 25E and the second threaded hole 25F of the second member 25F. It is screwed into the screw hole 25Fe. In the bracket 25D, the first groove portion 25Ed of the first contact portion 25Eb of the first member 25E and the second groove portion 25Fc of the second contact portion 25Fa of the second member 25F are arranged to face each other. The cleaning water temperature sensor 25B is sandwiched so as to be surrounded by the two grooves 25Fc. The cleaning water temperature sensor 25B is inserted into a cylindrical housing made of metal, and the housing is in contact with the first contact portion 25Eb and the second contact portion 25Fa. The tip of the wash water temperature sensor 25B is located above the first holding portion 25Ec and the second holding portion 25Fb (the first portion 25Aa of the wash water heater 25A). In the bracket 25D, the washing water heater 25A is sandwiched between the first holding portion 25Ec of the first member 25E and the second holding portion 25Fb of the second member 25F. In the bracket 25D, the heat of the wash water heater 25A is transferred to the wash water through the first holding portion 25Ec, the second holding portion 25Fb, the first contact portion 25Eb, the second contact portion 25Fa, the first groove portion 25Ed, and the second groove portion 25Fc. It is transmitted to the temperature sensor 25B.

Next, the effects of the dishwasher 100 of this embodiment will be described. In the dishwasher 100 of the above embodiment, the washing water heater 25A is supported by the bracket 25D, and the bracket 25D is attached to the inner surface of the washing tank 20. As shown in FIG. Accordingly, even if a load is applied to the cleansing water heater 25A during maintenance of the cleansing water heater 25A, it is possible to prevent the entire load from being applied to the mounting structure 25C of the cleansing water heater 25A. Therefore, it is possible to suppress the occurrence of deformation or the like in the attachment portion, and thus it is possible to suppress leakage of washing water therefrom. Also, the wash water temperature sensor 25B is in contact with the heat-conducting bracket 25D. As a result, the cleaning water temperature sensor 25B can accurately detect the temperature of the cleaning water heater 25A. Thus, the bracket 25D has two functions: a function of supporting the wash water heater 25A and a function of transmitting the heat of the wash water heater 25A to the wash water temperature sensor 25B. That is, the bracket 25D has two functions with one component. Therefore, the washing water heater 25A can be supported without increasing the number of parts. Therefore, it is possible to prevent washing water from leaking from the washing tank 20 while suppressing an increase in cost.

The dishwasher 100 according to the present embodiment forms a space extending in the front-rear direction and the left-right direction when viewed from the vertical direction, and the washing tank 20 is arranged, and is arranged below the washing chamber 1B. It has a machine room 1A. A lower front panel 11D that opens the space to the outside of the machine room 1A is provided on the front side in the front-rear direction of the machine room 1A. The wash water heater 25A has a first portion 25Aa extending in the front-rear direction and a second portion 25Ab connected to the first portion 25Aa and extending in the left-right direction. The second portion 25Ab is attached to the front side portion 20B in the front-rear direction. The bracket 25D is attached to the inner surface of the side portion 20B on the front side in the front-rear direction. In this configuration, by removing the lower front panel 11D provided on the front side of the machine room 1A in the front-rear direction to open the machine room 1A, the mounting structure 25C (the nut 25Cd) of the wash water heater 25A is worked. be able to. Further, by opening the door portion 15, the operation of the bracket 25D can be performed on the front side of the cleaning tank 20 through the opening portion 1C. Therefore, the washing water heater 25A can be attached and detached from the front side of the machine room 1A and the front side of the washing tank 20 from which the lower front panel 11D is removed. Since it can be performed in , it is possible to improve maintainability.

In the dishwasher 100 according to this embodiment, the washing tank 20 extends longitudinally in the front-rear direction. The first portion 25Aa of the washing water heater 25A is arranged on the right side (one side) in the left-right direction in the washing tank 20 . In this configuration, the first portion 25Aa of the wash water heater 25A extends in the longitudinal direction of the wash tank 20. As shown in FIG. Therefore, the heating capacity can be secured in the wash water heater 25A. Further, since the first portion 25Aa of the cleansing water heater 25A is arranged on the right side in the horizontal direction in the cleaning tank 20, even if the configuration in which the first portion 25Aa extends in the front-rear direction is adopted, the cleansing water heater 25A will not be able to clean the water. The layout of other members (the overflow pipe 27, the residual food filter, etc.) arranged in the tank 20 is not hindered.

Although the embodiments of the present invention have been described above, the present invention is not necessarily limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention.

In the above-described embodiment, the configuration in which one wash water heater 25A is provided has been described as an example. However, a plurality of wash water heaters 25A may be provided. In this configuration, the bracket 25D supports multiple wash water heaters 25A.

In the above-described embodiment, the washing water heater 25A is arranged on the right side of the washing tank 20 as an example. However, the washing water heater 25A may be arranged on the left side of the washing tank 20. FIG. In this configuration, the bracket 25D is attached to the inner surface of the left side 20B of the cleaning tank 20. As shown in FIG.

In the above-described embodiment, an example has been described in which the cleaning water temperature sensor 25B is sandwiched between the brackets 25D. However, it is sufficient that the wash water temperature sensor 25B contacts at least the bracket 25D and the heat of the wash water heater 25A is transferred via the bracket 25D.

<Other Modifications>
In the above-described embodiment and modification, the rack rail 23 is formed integrally with the side panel 2A by drawing. It may be formed by attaching to the inner surface.

The above embodiments and modifications are applicable not only to the type of dishwasher 100 in which the door portion 15 is provided on the front side of the main body portion 1, but also to, for example, a type of dishwasher in which the door portion opens and closes up and down. can also be applied to

In the above-described embodiment and modification, the dishwasher 100 having a configuration in which rinsing water is supplied to the upper nozzle 3 and the lower nozzle 4 from the rinsing tank 6 built in the machine chamber 1A of the main body 1 will be described as an example. However, it is not limited to this. For example, an upper nozzle 3 and a lower nozzle 4 from a gas booster or an electric booster that is provided outside the main body 1 of the dishwasher 100 and heats the water stored in the rinsing tank by a heating source such as gas or electricity. It may be applied to a dishwasher having a configuration in which rinsing water is supplied to.

The present invention may appropriately combine the above-described embodiment and other modifications.

1A Machine room 1B Washing room 11D Lower front panel (cover) 20 Washing tank 20B Side part 25A Washing water heater (heating part) 25Aa First part 25Ab Second Part 25B... Washing water temperature sensor (detection part) 25D... Bracket (mounting part) 100... Dish washer (washing machine).

Claims (3)

A washing machine for washing an object to be washed housed in a washing chamber,
a cleaning tank storing cleaning water for cleaning the object to be cleaned;
a heating unit disposed in the cleaning tank and attached to the side of the cleaning tank for heating the cleaning water;
a detection unit that detects the temperature of the washing water;
a mounting portion that supports the heating portion and is in contact with the detection portion and has heat conductivity;
The washing machine, wherein the attachment portion is attached to an inner surface of the washing tank. A machine room that forms a space extending in a first direction and a second direction orthogonal to the first direction when viewed from the vertical direction, in which the washing tank is arranged and that is arranged below the washing chamber. with
The machine room is provided with a cover that opens the space to the outside of the machine room on the one side in the first direction,
The heating unit has a first portion extending in the first direction and a second portion connected to the first portion and extending in the second direction,
The second part is attached to the side portion on the one side in the first direction,
The washing machine according to claim 1, wherein the attachment portion is attached to the inner surface on the one side in the first direction. The cleaning tank extends in the first direction as a longitudinal direction,
3. The washing machine according to claim 2, wherein said first portion is arranged in said washing tank on one side in said second direction.

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