WO2019107059A1

WO2019107059A1 - Dishwasher

Info

Publication number: WO2019107059A1
Application number: PCT/JP2018/040636
Authority: WO
Inventors: 竹内　慎; 新海　清恭; 原田　圭二; 郁也池添
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2017-11-28
Filing date: 2018-11-01
Publication date: 2019-06-06
Also published as: JP2021183148A; JP7316499B2; CN111050622A; JP2019093033A; JP6931773B2

Abstract

The present invention is provided with: a case having a front opening section; a dish basket for accommodating dishes; a moving part having a door body (40) that covers the front opening section; a slide rail for supporting the moving part on the case; a driving device having a driving motor for moving the moving part in the forward/rearward direction; an acceleration sensor (45) for detecting vibrations applied to the door body (40); and a control unit for controlling the driving device according to the vibrations detected by the acceleration sensor (45). The door body (40) includes an operation panel (41) provided on the front surface of a cleaning tank and a decorative plate (42) mounted on the operation panel (41), and the acceleration sensor (45) is substantially fixed to the operation panel (41). Consequently, the present invention provides the dishwasher which is convenient to use and in which the door body (40) is automatically withdrawn to a position at which the dishes can be accommodated.

Description

dishwasher

The present invention relates to a built-in type dishwasher for washing and drying dishes.

Conventionally, a dishwasher having the configuration shown in FIG. 8 has been disclosed (see, for example, Patent Document 1).

FIG. 8 is a side longitudinal cross-sectional view of a conventional dishwasher. The main body 14 of the dishwasher is open at the front. Inside the main body 14, a cleaning tank 15 having an open upper surface is provided so as to be able to be pulled forward. In addition, the dashed-dotted line shown in FIG. 8 shows the state by which the washing tank 15 was pulled out.

In the dishwasher, a washing nozzle 8, a dish cage 4 and a heater (not shown) are provided inside the washing tank 15. The cleaning pump 7 and the water supply valve 9 are provided outside the cleaning tank 15. The water supply valve 9 is connected to the water supply and introduces tap water to be used as washing water into the washing tank 15 via the water supply hose 10. The washing pump 7 circulates the washing water stored in the washing tank 15. The cleaning nozzle 8 is rotatably provided in the cleaning tank 15 and ejects the cleaning water pressure-fed by the cleaning pump 7. The tableware cage 4 is detachably provided in the cleaning tank 15. The tableware basket 4 holds the stored tableware 3. The tableware cage 4 is configured such that the washing water jetted from the washing nozzle 8 efficiently strikes the tableware 3. A heater (not shown) heats the wash water or the drying air.

The cleaning tank 15 is provided with a slide rail 16 on the outer side surface. The main body 14 includes a slide rail 17 on the inner side. The slide rail 16 slides while being held by the slide rail 17. The cleaning tank 15 is supported by the main body 14 via the slide rail 16 and the slide rail 17 of the main body 14. Thereby, the washing tank 15 can be pulled out from the main body 14 and pushed into the main body 14.

The inner lid 21 is provided at the upper portion in the main body 14 via a link mechanism (not shown), and is disposed to close the opening of the upper surface of the cleaning tank 15. That is, the inner lid 21 is configured to close the opening of the upper surface of the cleaning tank 15 through the packing 22 when the cleaning tank 15 is stored in the main body 14.

The cleaning tank 15 includes a door 23 at the front. The door 23 covers the opening on the front surface of the main body 14 when the cleaning tank 15 is accommodated in the main body 14. The door 23 has a handle portion 24 and an operation switch on the front upper side. The handle portion 24 is used when the user holds the hand and pulls out or pushes the cleaning tank 15. The operation switch is operated by the user to set the washing operation such as the washing step, the rinsing step and the drying step of the dishwasher.

The cleaning tank 15 is provided at the lower portion thereof with a rack gear 18 in which gear teeth are formed in a straight line. The length of the rack gear 18 is configured to be longer than the stroke by which the cleaning tank 15 is pulled out of the main body 14. A drive motor 19 having a reduction mechanism is fixed to the main body 14. A gear 20 that meshes with the rack gear 18 is attached to the motor shaft of the drive motor 19. The drive motor 19 is configured to be capable of normal rotation or reverse rotation. The cleaning tank 15 is driven by the drive motor 19 via the rack gear 18.

As described above, the conventional dishwasher is configured.

Hereinafter, the operation of the dishwasher having the above configuration will be described.

First, the user withdraws the washing tank 15 from the main body 14 and sets the dishes 3 in the washing tank 15. At this time, the user can pull out the cleaning tank 15 by putting the hand on the handle portion 24 and pulling out the user, or the user can operate the operation switch and pull out the cleaning tank 15 by driving the drive motor 19. Configured

So, below, the dishwasher by the structure by which the washing tank 15 is pulled out automatically by drive of the drive motor 19 is demonstrated to an example.

Specifically, when the user operates the operation switch, the control device (not shown) causes the drive motor 19 to rotate forward at a constant speed, and rotates the gear 20 attached to the motor shaft in a predetermined direction. Let At this time, the rotational force of the gear 20 acts to push out the engaged rack gear 18. Thereby, the cleaning tank 15 comes out from the inside of the main body 14 to the front while the slide rail 16 and the slide rail 17 slide. When the cleaning tank 15 comes up to an arbitrarily set position, such as a position where the tableware 3 can be stored, the control device stops the driving of the drive motor 19 and stops the movement of the cleaning tank 15.

Next, the user places the dishes 3 in the dish cage 4 in the washing tank 15 and throws the detergent into the washing tank 15. At this time, the tip of the cleaning tank 15 being withdrawn is lowered by the weight of the stored tableware 3.

Next, when the user operates the operation switch, the control device reversely rotates the drive motor 19. At this time, the rotational force of the gear 20 acts to pull in the engaged rack gear 18. Thereby, the cleaning tank 15 is drawn into the main body 14 and accommodated while the slide rail 16 and the slide rail 17 slide. When the cleaning tank 15 is accommodated in the main body 14, the control device drives the inner lid 21 to lower it. Thereby, the opening of the upper surface of the cleaning tank 15 is closed by the inner lid 21.

Next, the user operates the operation switch to set the washing course and start the washing operation of the dishwasher. Thereby, the control device controls the washing pump 7, the water supply valve 9, the heater, the drainage pump (not shown), and the like to wash the dishes 3 contained in the dish cage 4. At this time, the control device controls each of the above-described elements so as to perform the washing operation set in the order of, for example, the washing step, the rinsing step, and the drying step.

Then, when the washing operation is finished, the user takes out the dishes 3. Specifically, the user operates the operation switch in the same manner as before the cleaning operation. Thereby, the control device rotates the drive motor 19 and pulls out the cleaning tank 15 to a predetermined position. At this time, due to the smooth rotation of the drive motor 19, the dishes 3 stored in the cleaning tank 15 are pulled out without contacting each other.

As mentioned above, the conventional dishwasher operates.

In the conventional dishwasher, a decorative panel having the same design and made of the same material as the door and the drawer of the system kitchen is attached to the lower front of the door 23. This cosmetic panel is designed to improve the design of the system kitchen.

However, the handle portion 24, the operation switch, etc. are usually configured with the unique design of the dishwasher. Therefore, designs such as the handle portion 24 and the operation switch can not be completely matched with the design of the system kitchen.

Moreover, in the design of the system kitchen which diversifies in recent years, the dishwasher which drives the drawer which has a novel design which abbreviate | omitted to the handle part with an electric motor etc. also exists. Therefore, these designs also need to be matched with the design of the system kitchen to be incorporated.

Furthermore, there is not only a drawer of furniture but also a dishwasher equipped with a mechanism for pushing out the drawer a little, such as a push rod used for drawers and doors of household appliances such as a refrigerator. However, in the case of a dishwasher having such a configuration, the amount of opening (drawing amount) of the drawer is small. Therefore, it is necessary for the user to hand out the drawer and to further pull out the washing tank to a desired position.

Therefore, the dishwasher described in Patent Document 1 describes a configuration in which when the cleaning tank is pulled out to a set position, the drive motor is stopped and movement of the cleaning tank is stopped. Furthermore, Patent Document 1 suggests that the withdrawal amount of the washing tank is released to a sufficient position so that the setting of the dishes can be performed immediately.

However, the dishwasher of Patent Document 1 does not disclose the configuration of the operation switch for driving the washing tank.

Japanese Patent Application Laid-Open No. 2002-345712

The present invention adapts to the diversified design of a system kitchen, and even when there is no operation switch on the door, a convenient dishwasher that can pull out the door and the washing tank to a position where the dishes can be stored. provide.

The dishwasher of the present invention is provided with a housing having a front opening on the front, and a moving part provided so as to be able to be put in and out of the housing, a basket for storing dishes, and a door covering the front opening. Furthermore, the dishwasher includes a support mechanism for supporting the moving unit in a movable manner back and forth, a drive mechanism having a driving unit for moving the moving unit at least forward or backward, and a door A sensor for detecting the applied vibration and a control unit for controlling the drive device based on the vibration detected by the sensor. The door includes a front panel provided on the front of the moving unit and a decorative board attached to the front panel, and the sensor is configured to be substantially fixed to the front panel.

According to this configuration, even when the door covering the front surface does not have the operation unit, the dishwasher can automatically withdraw the moving unit by the drive device to a position where the dishes can be accommodated. This improves the usability of the dishwasher. It can also be easily adapted to diversifying system kitchen designs. Furthermore, the vibration applied to the door can be reliably transmitted to the sensor.

As a result, it is possible to provide a convenient dishwasher that can easily store dishes in the washing tank.

FIG. 1 is a view showing a side longitudinal cross section of the dishwasher in accordance with the first embodiment of the present invention. FIG. 2 is a view showing a side longitudinal cross section of the dishwasher in the embodiment. FIG. 3 is a perspective view of a dishwasher of another configuration example in the embodiment. FIG. 4 is a perspective sectional view of the door of the dishwasher in the same embodiment. FIG. 5 is an exploded perspective view of the operation panel of the dishwasher in the same embodiment. FIG. 6 is a perspective view of a decorative board of the dishwasher in the same embodiment. FIG. 7 is an enlarged sectional view of an essential part showing another example of fixing the operation panel 41 in the cross section shown in FIG. FIG. 8 is a side longitudinal cross-sectional view of a conventional dishwasher.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited by the embodiment.

Embodiment 1
Hereinafter, the dishwasher of Embodiment 1 of this invention is demonstrated, referring FIG. 1 and FIG.

FIG. 1 and FIG. 2 are side vertical cross-sectional views of a dishwasher of which the cleaning tank 33 is a drawer type according to the first embodiment of the present invention. FIG. 1 shows a state in which the cleaning tank 33 is housed in the housing 31. As shown in FIG. FIG. 2 shows a state in which the upper surface opening 35 of the cleaning tank 33 is pulled out from the inside of the housing 31 until it is fully opened. In addition, the dishwasher of this Embodiment is integrated and used for the system kitchen K, for example.

As shown in FIG. 1, the dishwasher of the present embodiment includes a housing 31, a washing tank 33, a door 40, a control unit 44, a drive device 51 and the like. The housing 31 has a front opening 32 whose entire front is open. The cleaning tank 33 is movable in the front-rear direction with respect to the housing 31, and is provided so as to be able to be taken in and out from the front opening 32 of the housing 31.

In the present embodiment, as shown in the figure, the front direction is a direction in which the door 40 and the cleaning tank 33 are pulled out, and the rear direction is a direction in which the cleaning tank 33 is stored and the door 40 is closed. . Moreover, the installation side of a dishwasher is below and the other side is upper, Furthermore, the right side facing the front of the door 40 is made right side, left side is made left side, and it demonstrates below.

The housing 31 is provided with slide rails 31a that are installed in a substantially horizontal direction (including the horizontal direction) on the inner surface side of the left and right side surfaces. The cleaning tank 33 is provided with slide rails 34 installed in a substantially horizontal direction (including the horizontal direction) on the outer surface side of the left and right side surfaces. The cleaning tank 33 is supported by the slide rail 31a of the housing 31 via the slide rail 34, and moves along the slide rail 31a. The cleaning tank 33 has the upper surface opening part 35 by which the whole upper surface was opened. Then, the dishes 36, which are objects to be cleaned, are accommodated in the dish cage 47 disposed in the cleaning tank 33 through the upper surface opening 35.

An inner lid 37, a parallel link mechanism 38, a seal portion 39 and the like are disposed on the top of the housing 31. The inner lid 37 closes the top opening 35 of the cleaning tank 33. The parallel link mechanism 38 supports the inner lid 37. The parallel link mechanism 38 includes, for example, a pair of left and right pairs and two pairs of front and rear pairs, and drives the inner lid 37 in the vertical direction. The seal portion 39 is provided on the outer periphery of the lower surface of the inner lid 37. The seal portion 39 seals the top opening 35 of the cleaning tank 33 when the inner lid 37 is lowered. Also, the parallel link mechanism 38 lifts the inner lid 37 when the cleaning tank 33 is pulled out of the housing 31. Thereby, the inner lid 37 and the seal portion 39 are configured not to interfere with the movement of the cleaning tank 33.

The cleaning tank 33 includes a door 40 at the front. The door 40 includes a front panel (referred to as the operation panel 41 in the present embodiment) provided on the front surface of the cleaning tank 33, a decorative plate 42 attached to the operation panel 41, and the like. The decorative plate 42 covers the entire front opening 32 of the housing 31 when the cleaning tank 33 is stored in the housing 31. The decorative plate 42 is made of the same material, the same color, and the same design as the decorative plate which is a door such as a drawer of the system kitchen K. Furthermore, the decorative plate 42 includes a handle 43. The handle 43 constitutes a handle that is used when the user withdraws the cleaning tank 33. The handle 43 is attached to the same handle as the system kitchen K. Thereby, the system kitchen K is comprised by the design with which the whole was unified.

Depending on the system kitchen K, there is also a system kitchen K or the like provided with a design consisting of only the decorative panel 42 without providing the handle 43 on the front surface of the door 40. In this configuration, the cleaning tank 33 including the door 40 is automatically pulled out, for example, via a drive device. At this time, for example, the upper portion or the side portion of the decorative plate 42 becomes a handle portion and functions as a handle. Therefore, the dishwasher of the present embodiment does not distinguish between the manual operation and the automatic operation in the withdrawal operation of the cleaning tank 33.

In the present embodiment, the cleaning tank 33 and the slide rail 34 are exemplified as a support mechanism supported by the housing 31 in a state in which the door 40 can be moved back and forth.

The control unit 44 is disposed on the back of the operation panel 41. The control unit 44 executes the washing operation while controlling all the operations of the dishwasher. The washing operation includes a washing step, a rinsing step, and a drying step. The washing step is a step of removing dirt such as the dish 36 using a detergent or the like. The rinse step is a step of removing the detergent and the like adhering to the dish 36 and the like. The drying step is a step of drying water droplets and the like remaining on the cleaned dishes 36.

Further, the control unit 44 is configured to include a plurality of printed circuit boards. A sensor exemplified by the acceleration sensor 45 or the like is disposed on one of the printed circuit boards 44a (see FIG. 4). The acceleration sensor 45 is firmly fixed to the printed circuit board 44a by soldering. Thereby, the printed circuit board 44a and the acceleration sensor 45 are integrated, and can be regarded as substantially the same. Therefore, the vibration transmitted to the printed circuit board 44a can be detected by the integrated acceleration sensor 45.

The acceleration sensor 45 detects the magnitude of substantial acceleration in the directions of the X, Y, and Z axes of the dishwasher. In the dishwasher, the X axis corresponds to the longitudinal direction, the Y axis corresponds to the lateral direction, and the Z axis corresponds to the vertical direction. The acceleration sensor 45 detects the direction and magnitude of various accelerations generated in the dishwasher. Specifically, the acceleration sensor 45 detects the direction and the magnitude of the acceleration generated by the movement of the door 40 and the cleaning tank 33 in the front-rear direction (X axis). Furthermore, the acceleration sensor 45 detects the direction and magnitude of the acceleration due to the vibration applied to the door 40. Therefore, it is desirable that the printed circuit board 44a be securely attached to the operation panel 41 so that no problem occurs in the attachment direction and the mechanical strength. Thus, the acceleration sensor 45 mounted on the printed circuit board 44a can accurately detect the acceleration applied to the dishwasher.

That is, the control unit 44 controls the operation of the dishwasher based on the signals regarding the direction and the magnitude of the acceleration detected by the acceleration sensor 45 and the states of the door 40 and the cleaning tank 33 (for example, opening and closing operations). .

The above-mentioned substantial acceleration refers to fluctuations in the mounting angle error and the installation angle error when fixing the printed circuit board 44a to which the acceleration sensor 45 is mounted in a predetermined position in alignment with the three axial directions. , Means to tolerate. At this time, the substantial acceleration also includes the case where the predetermined angle is given in advance and correction is performed by a predetermined angle in fixing the printed circuit board 44a. However, vertical and horizontal accelerations can be corrected by detecting deviation from gravity.

Further, the control unit 44 can detect the deviation between the gravity and the acceleration in the Z-axis direction. Therefore, at the time of installation of the dishwasher, as described later, the control unit 44 can be used as a level.

That is, the dishwasher of this embodiment is configured to allow the operation of the dishwasher by the user applying vibration to the door 40, the washing tank 33, and the like.

Specifically, as a method of applying vibration, there are the following methods.

For example, there is a method in which a user taps a hand with a hand so as to knock the door 40 or beats the door 40 with a fingertip to apply vibration. There is also a method of applying a vibration by tapping the door 40 with a user's hand. Furthermore, when the user's hand is wet or can not be used because he holds something, the user may push the door 40 with an elbow or a knee to apply vibration. In short, as long as the predetermined vibration applied to the door 40 or the like is transmitted to the acceleration sensor 45 and can be detected, the method is not particularly limited. In addition, in many cases where vibration is applied, vibration is applied to the door 40 in a manner that generates a sound. Therefore, in the following, a configuration in which the dishwasher 40 is operated by knocking on the door 40 and applying vibration is described as an example.

Further, the dishwasher of the present embodiment includes the drive device 51 inside the housing 31. The drive device 51 includes a drive motor 52 that constitutes a drive unit, a pinion gear 53, a rack gear 54, and the like. The driving device 51 may be configured by, for example, a method of winding a belt by a pulley, a belt conveyor method, or a roller pressed against the cleaning tank 33. Further, the drive direction may be configured to be driven only in the forward direction or only in the backward direction. In this case, the direction not to drive is driven manually by the user, for example.

That is, the drive device 51 moves the door 40 and the cleaning tank 33 at least forward or backward. Specifically, the control unit 44 drives the drive motor 52 of the drive device 51 when receiving a predetermined signal from the sensor exemplified by the acceleration sensor 45 or the like, or the operation unit 46 or the like. The sensor is not limited to the acceleration sensor 45 as long as the sensor can detect a change such as vibration applied to the door 40 or the like. For example, an electrostatic sensor that detects that the user has touched the door 40 or the like may be used as the sensor. As a result, it is not necessary to apply a force that causes a detectable vibration, and it is possible to easily instruct the control unit 44 with a simple operation.

Hereinafter, a basic control operation of the dishwasher of the present embodiment will be described by taking, as an example, a configuration for detecting a vibration due to knock (beat).

First, the washing tank 33 is accommodated in the housing 31, and the user taps the door 40, for example, twice from the front, for example, while the dishwasher is stopped. At this time, the acceleration sensor 45 detects the vibration applied in the front-rear direction, which is the same as the withdrawal direction of the cleaning tank 33. The acceleration sensor 45 outputs the detected predetermined signal to the control unit 44. As a result, the control unit 44 determines that the door 40 has been hit by the user.

Then, the control unit 44 controls the drive motor 52 of the drive device 51 to drive. Thus, the moving unit including the door 40 and the cleaning tank 33 moves in the forward direction, and is automatically pulled out of the housing 31.

In addition, although a moving part contains the whole part which drives and moves with the drive device 51, the component of a moving part may differ with the forms of dishwasher. Specifically, in the present embodiment, the cleaning tank 33 and the door 40 are mainly exemplified as the moving unit. However, for example, as shown in FIG. 3, there is a dishwasher or the like configured such that the cleaning space 75 of the cleaning tank 73 is formed in the housing 71. In this case, the inner surface of the door 74 constitutes the front surface of the cleaning tank 73, but the cleaning space 75 itself does not move. That is, in the case of this configuration, the cleaning tank 73 is not included in the moving unit, and the door 74, the lower tableware basket 77, the upper tableware basket 78, and the support mechanism 80 are mainly exemplified as the moving unit.

Further, in the dishwasher of the present embodiment, the operation unit 46 is formed on the upper portion of the operation panel 41 and disposed on the front side of the upper surface opening 35 of the cleaning tank 33. The operation part 46 is arrange | positioned, for example on the upper surface of the convex part which protrudes inside the housing | casing 31 from the back surface of the decorative board 42 of the door 40. As shown in FIG. Thus, the operation unit 46 is concealed in the housing 31 when the cleaning tank 33 is accommodated in the housing 31.

The operation unit 46 includes operation buttons (not shown) and display units (not shown) such as LEDs. The operation button is set by the user to control each step of the cleaning operation. The display unit displays the content set via the operation button using an LED.

In addition, the dish washer 47, the washing nozzle 48, the heater 49 and the like are further disposed inside the washing tank 33. Furthermore, the washing tank 50 is provided outside with a washing pump 50, a drying device (not shown), and the like. The cleaning nozzle 48 is rotatably provided in the cleaning tank 33 below the dish cage 47. The heater 49 is disposed, for example, in the space between the bottom of the cleaning tank 33 and the cleaning nozzle 48. The heater 49 heats the washing water stored in the washing tank 33 in the washing step and the rinsing step of the washing operation. In addition, the heater 49 heats the air in the cleaning tank 33 in the drying step of the cleaning operation. These components are disposed inside and outside the cleaning tank 33 together with the door 40 and the like including the decorative plate 42, and move in the front-rear direction integrally with the cleaning tank 33.

The washing pump 50 circulates the washing water supplied into the washing tank 33. Specifically, the washing pump 50 sucks the washing water stored in the washing tank 33 and jets the washing water from the washing nozzle 48 toward the tableware 36.

That is, the moving unit including the cleaning tank 33 of the present embodiment is configured to be able to be taken in and out in the front-rear direction by the drive device 51.

Hereinafter, the fixing of the decorative plate 42 and the fixing of the printed circuit board 44a on which the acceleration sensor 45 is provided in the present embodiment will be described with reference to FIGS. 4 to 6.

FIG. 4 is a perspective sectional view showing the back of the door 40 as viewed from the rear side. FIG. 4 shows the near side in a vertical cross section. Furthermore, FIG. 4 shows the operation panel 41 of the door 40 transparently and indicated by a broken line in order to help understanding of the mounting configuration of the acceleration sensor 45. FIG. 5 is an exploded perspective view showing the back of the operation panel 41 as viewed from below. FIG. 5 shows how the printed circuit board 44 a is fixed to the operation panel 41. FIG. 6 is a perspective view showing the back of the decorative plate 42 as viewed from the rear side.

As shown in FIG. 4, the door 40 is configured by fixing a decorative plate 42 to an operation panel 41 that constitutes a front panel. The operation panel 41 has a lower panel 41 a at the lower part, and is integrally fixed to the decorative plate 42. At this time, although not shown, the lower part of the decorative plate 42 is fixed to the lower panel 41a.

As shown in FIG. 5, two locking portions 41 b to which the decorative plate 42 is fixed are disposed in the vicinity of the end portion in the longitudinal direction of the operation panel 41. Furthermore, at the operation panel 41, three control portion fixing portions 41c for fixing the printed circuit board 44a having the acceleration sensor 45 are disposed. The printed circuit board 44a is disposed between the two locking portions 41b, and is firmly fixed to the control portion fixing portion 41c using the screw 44b.

Further, as shown in FIG. 6, on the back surface of the decorative plate 42, the decorative plate attachment bracket 42a is firmly fixed at predetermined positions on the left and right two places using screws 42b. The vicinity of the upper end portion of the decorative plate attachment bracket 42 a is configured to protrude in an L shape toward the rear from the back surface of the decorative plate 42. Thereby, the narrowing space W is formed between the decorative plate 42 and the decorative plate 42. The decorative plate attachment bracket 42 a constitutes an engaging portion at which the decorative plate 42 is fixed to the operation panel 41.

And as shown in FIG. 4, the latching | locking part 41b of the operation panel 41 is pinched | interposed into the constriction space W of the decorative board attachment metal fitting 42a provided in the decorative board 42. As shown in FIG. Specifically, the locking portion 41 b of the operation panel 41 is lifted from below and fitted into the narrowed space W. Then, the lower panel 41a of the operation panel 41 is fixed to the decorative plate 42 by screwing (not shown). As a result, the operation panel 41 and the decorative plate 42 are firmly fixed, not coming off, and rattling is also prevented. The locking portion 41 b of the operation panel 41 and the decorative plate attachment bracket 42 a are exemplified as two fixing portions at the left and right of the decorative plate 42.

As a result, the printed circuit board 44 a to which the acceleration sensor 45 is fixed is in a state of being fixed between the two fixing portions of the decorative plate 42.

With the above-described configuration, vibration due to knock or the like applied to the decorative plate 42 is reliably transmitted from the decorative plate attachment bracket 42 a to the operation panel 41 via the locking portion 41 b in the fixing portion of the decorative plate 42. Furthermore, the vibration transmitted to the operation panel 41 is reliably transmitted to the acceleration sensor 45 fixed to the printed circuit board 44a via the control part fixing portion 41c. Thus, the acceleration sensor 45 can reliably detect the vibration applied to the decorative plate 42. As a result, the control unit 44 drives the drive device 51 based on the vibration generated by the intention of the user.

In the system kitchen K, the place where the dishwasher is installed and the position where the user knocks on the decorative plate 42 are various. Therefore, according to the situation, it is necessary to detect the vibration transmitted from various positions by the acceleration sensor 45. Therefore, in the dishwasher of the present embodiment, the acceleration sensor 45 is integrally disposed between the two fixing portions near the left and right of the decorative plate attachment bracket 42a and the locking portion 41b. As a result, the vibrations transmitted from various positions can be reliably detected by the acceleration sensor 45.

At this time, the acceleration sensor 45 may fix the acceleration sensor 45 at a position between two vertical lines passing through the respective fixing portions in front view with respect to at least two fixing portions. Thus, the applied vibration can be easily transmitted to the acceleration sensor 45 from any of the two fixing portions of the decorative plate 42. As a result, the vibration can be more reliably detected by the acceleration sensor 45.

In addition, although the structure which pinches the latching | locking part 41b was demonstrated to the example by this embodiment at the narrowing space W of the decorative board attachment metal fitting 42a which is an engaging part, it is not restricted to this. For example, the configuration described below with reference to FIG. 7 may be used.

FIG. 7 is an enlarged sectional view of an essential part showing another example of fixing the operation panel 41 in the cross section shown in FIG.

As shown in FIG. 7, the operation panel 41 is formed at a position where the locking portion 41 d of the operation panel 41 does not contact the decorative plate 42. And it is comprised so that the decorative board 42 may be contact | abutted in the position of the upper end of the operation panel 41. FIG. With this configuration, the decorative plate 42 is fitted, and the locking portion 41 d of the operation panel 41 engages with the narrowed space W of the decorative plate attachment bracket 42 a. Thereby, the decorative plate 42 and the operation panel 41 are press-contacted and fixed in the contact surface P1, the contact surface P2, and the contact surface P3. As a result, the operation panel 41 and the decorative plate 42 are firmly fixed, not coming off, and rattling is also prevented.

As described above, the dishwasher of the present embodiment is configured.

Next, in the dishwasher with the above-described configuration, detection of the sensor by the operation of the user and the operation of the drive unit will be described. In the following, the case where the user moves the cleaning tank 33 automatically by driving the drive motor 52 by knocking the door 40 twice is described in detail as an example. The reason for setting the detection of knocking twice will be described later.

In this case, when the user knocks on the door 40 twice, vibration due to the door 40 being hit is generated. The vibration is transmitted from the decorative plate 42 to the operation panel 41 and transmitted to the printed circuit board 44 a of the control unit 44 fixed to the operation panel 41. The vibration transmitted to the printed circuit board 44 a is detected by the acceleration sensor 45 as acceleration.

That is, when the user knocks on the door 40 twice, the control unit 44 detects the direction and the magnitude of the acceleration from the output signal of the acceleration sensor 45. Specifically, the acceleration sensor 45 detects the magnitude of the acceleration in each of the X axis, Y axis, and Z axis directions.

Then, for example, with respect to the detected magnitudes of acceleration in the three axial directions, the control unit 44 determines that the acceleration X in the X axis is equal to or greater than the first threshold A and the acceleration Y in the Y axis is equal to or less than the second threshold B, And, the drive motor 52 is driven only when the acceleration Z of the Z axis is equal to or less than the third threshold C. That is, only when the above conditions are met, the control unit 44 determines that the door 40 is knocked from the front by the intention of the user. As a result, the malfunction at the time of opening and closing of the washing tank 33 which is not based on a user's intention is prevented.

That is, when the acceleration X is less than the first threshold A, the control unit 44 determines that the vibration is not from the front of the door 40. Further, even if the acceleration X is the first threshold A or more, when the acceleration Y is the second threshold B or more or the acceleration Z is the third threshold C or more, it is determined that the vibration is not from the front of the door 40.

However, as described above, the dishwasher of this embodiment is incorporated into the system kitchen K and used. The system kitchen usually has a worktop such as a worktop. Therefore, in preparation for cooking and the like, the operation of tapping the worktop is repeated, and a large number of vibrations with various accelerations are generated. As a tapping operation, there are, for example, an operation of cutting a food with a knife, an operation of crushing a food with a mortar, an operation of tapping using an instrument to soften meat, and the like. In addition, housework such as placing food and dishes on the worktop may cause vibration.

At this time, even if the threshold value of the acceleration is set in the three axial directions detected by the acceleration sensor as described above, the control unit 44 of the dishwasher is knocked on the door 40 twice for three or more vibrations. There is a possibility that it may be erroneously detected as vibration of acceleration. Therefore, in the present embodiment, the control unit 44 determines that the vibration is intended by the user only when two knocks are continuously detected. Thereby, the structure which performs control of a dishwasher is preferable. That is, when a vibration corresponding to two non-consecutive knocks or three or more consecutive knocks is detected, the control unit 44 preferably cancels the driving operation of the dishwasher.

Further, when vibration from the decorative plate 42 is applied, the acceleration sensor 45 strongly detects a signal in the X direction. On the other hand, in the case of a housework operation or the like, in the case of vibration hitting the worktop of the system kitchen K, a signal in the Z direction strongly appears on the acceleration sensor 45. Therefore, when the vibration in the Z direction is stronger than the X direction, the control unit 44 preferably determines that the vibration transmitted from the decorative plate 42 is not the vibration and controls the operation of the dishwasher.

By these processing operations, it is possible to prevent false detection of vibration caused by normal household work. As a result, it is possible to more reliably prevent the user's unintended malfunction of the dishwasher.

Next, when it is determined that the user has added an operation (vibration) for pulling out the cleaning tank 33 based on the detected acceleration, the control unit 44 sounds a buzzer after 0.4 seconds, for example. Thereby, the user is notified of the start of the movement of the door 40 and the cleaning tank 33.

Next, the control unit 44 drives the drive motor 52 in a predetermined rotational direction, for example, 0.6 seconds after the determination. That is, the drive motor 52 moves the rack gear 54 provided in the lower part of the cleaning tank 33 forward via the pinion gear 53 provided on the motor shaft. As a result, while the slide rail 34 of the cleaning tank 33 and the slide rail 31 a of the housing 31 slide, the cleaning tank 33 moves forward from the front opening 32 of the housing 31 and is pulled out.

In the present embodiment, when the drive motor 52 is driven for about 3.5 seconds, the cleaning tank 33 is adjusted so as to be pulled out most. Thereby, the cleaning tank 33 is pulled out to a position where the upper surface opening 35 is substantially fully opened, and stops at that position.

Next, the user stores the tableware 36 and the like in the tableware basket 47 from the top opening 35 with the top opening 35 fully open.

When the storage is completed, the user operates the operation unit 46 to set the washing operation of the dishwasher. Thus, the control unit 44 carries out the washing operation of the dishwasher.

In the case of the present embodiment, the control unit 44 is configured to be energized at all times regardless of the on / off of the power switch of the dishwasher. As a result, the control unit 44 is always on standby in a state in which the user can detect knocking.

Above, the series of dishwashing operations including the user's actions are completed.

In the present embodiment, the user may, for example, contact the decorative plate 42 or the handle 43 of the door 40 without intention during the washing operation of the dishwasher. In this case, it is inconvenient that the control unit 44 detects the vibration due to the contact not intended by the user and the cleaning tank 33 is pulled out. Therefore, during the operation of the dishwasher, the control unit 44 is configured not to drive the drive motor 52, for example, in the same two or more knocks as at the time of stop. In this case, when the acceleration sensor 45 detects, for example, three or more knocks, the control unit 44 preferably suspends the cleaning operation and pulls out the cleaning tank 33. That is, it is preferable to set so that the cleaning tank 33 is pulled out only when the control unit 44 detects an intentional operation of the user. Thus, the control unit 44 can prevent execution of control not intended by the user. Furthermore, the control unit 44 may have a function such as a so-called child lock. These configurations further improve the safety of the dishwasher. In the present embodiment, for example, the acceleration X in the X axis is equal to or greater than the first threshold A, and the acceleration Y in the Y axis is equal to or smaller than the second threshold B, with respect to the detected magnitudes of acceleration in three axial directions. In addition, although the configuration in which the control unit 44 drives the drive motor 52 is described as an example only when the acceleration Z of the Z axis is equal to or less than the third threshold C, the present invention is not limited thereto. For example, a dishwasher is basically incorporated into the system kitchen K, but in the case of a table-top dishwasher, it is installed on the top or floor of a cabinet such as a drawer. At this time, the transmission state of the applied vibration changes due to the strength of the installation surface on which the dishwasher is installed. Therefore, it is preferable to flexibly set a threshold or the like for detecting a vibration according to each situation such as installation.

Specifically, when the dishwasher is installed on the upper surface of the cabinet, only the legs of the dishwasher contact the system kitchen K. In this case, a gap is formed between the system kitchen K and the periphery of the dishwasher. In general, the formed gap may be closed by a sealing member such as a sponge or a rubber plate disposed on the front of the side surface and upper portion of the housing 31. Since the seal member disposed is flexible, it is difficult to transmit vibrations. Therefore, the vibration applied to the system kitchen K is easily transmitted in the vertical direction via the legs of the dishwasher. That is, the direction susceptible to the strength of the installation surface is the vertical direction. For the above reasons, when installing the dishwasher on the upper surface of the cabinet, instead of setting “the acceleration Z is less than the third threshold C” in the Z-axis direction corresponding to the vertical direction, “Z-axis acceleration Z is It may be preferable to change the setting to a threshold D of 4 or more.

Furthermore, in the case of the dishwasher installed on the upper surface of the cabinet, it is preferable that the system kitchen K and the dishwasher be connected by a rigid member. Thus, the control unit 44 can accurately detect vibrations applied to the system kitchen K other than the door 40. In this case, in particular, it is more preferable to firmly connect the left and right and up and down directions in the front part of the housing 31. Thereby, the control unit 44 can accurately detect the vibration of the Y axis in the left-right direction and the Z axis in the vertical direction. At this time, it is further preferable to flexibly connect the system kitchen K and the dishwasher in the front-rear direction. Thereby, the control unit 44 suppresses the influence of the vibration in the X-axis direction corresponding to the front-rear direction. As a result, the control unit 44 can more accurately distinguish the vibration applied to the door 40 and the other vibrations and control the operation of the dishwasher with higher accuracy. As described above, according to the combination of the state of the washing tank 33 and the intentional knock by the user, the dishwasher of this embodiment can assign control operations such as pulling out and pushing of the washing tank 33. Become. In this case, not only the number of knocks detected by the control unit 44 but also detection of the strength may be combined. As a result, the types of control operations of the dishwasher, which are controlled by the control unit 44, can be increased to realize various control operations.

Further, it is preferable that the combination of the detection of the acceleration sensor 45 and the control operation, and the setting of the stop position of the cleaning tank 33 can be set by the user via the operation unit 46 or the like. At this time, it is more preferable that the setting unit and the like can be confirmed by the display unit. Specifically, the setting of the threshold regarding the setting that the user can handle, the setting of the operation of the drive motor 52, and the like, including at least the sensitivity of the sensor to the vibration applied to the door 40 or the like. Then, the user can confirm the set value that has been set via a display unit provided in the operation unit 46. As a result, the user can freely set the number of knocks, the detection level of knock intensity, and the like, and can easily confirm the setting contents. As a result, the usability of the dishwasher is further improved. As described above, the control unit 44 of the dishwasher of the present embodiment can control the drive device 51 and can safely move the cleaning tank 33 based on the intention of the user. As a result, the user's labor for manually moving the washing tank 33 is reduced, and the usability of the dishwasher is improved.

Further, the operation unit 46 is entirely housed in the housing 31. As a result, the design of the dishwasher can be easily adapted to the diversified design of the system kitchen K. As a result, the design of the system kitchen K is unified, and the designability is further improved.

Further, the vibration applied to the decorative plate 42 by the user's knock is surely transmitted from the decorative plate attachment bracket 42a to the operation panel 41 via the locking portion 41b in the fixing portion of the decorative plate 42. Then, the vibration transmitted to the operation panel 41 is reliably transmitted to the acceleration sensor 45 fixed to the printed circuit board 44a via the control unit fixing portion 41c. Thus, the vibration applied to the decorative plate 42 can be reliably detected by the acceleration sensor 45. As a result, the control unit 44 can drive the drive device 51 based on the intention of the user. As described above, the dishwasher of the present invention is provided with a case having a front opening on the front, and a door which is provided so as to be able to get in and out of the case and which holds the dishes and which covers the front opening. Including a moving unit. Furthermore, the dishwasher includes a support mechanism for supporting the moving unit in a movable manner back and forth, a drive mechanism having a driving unit for moving the moving unit at least forward or backward, and a door A sensor for detecting the applied vibration and a control unit for controlling the drive device based on the vibration detected by the sensor. The door includes a front panel provided on the front of the moving unit and a decorative board attached to the front panel, and the sensor is configured to be substantially fixed to the front panel.

Further, in the dishwasher of the present invention, the decorative board is fixed to the front panel at at least two fixing portions at the left and right in front view, and the sensor is positioned between vertical lines passing through the respective fixing portions in front view , May be fixed to the front panel.

According to this configuration, the applied vibration can be easily transmitted to the acceleration sensor from any of the fixing portions provided on the left and right of the decorative plate. Thus, the acceleration sensor can more reliably detect the vibration.

Further, in the dishwasher of the present invention, the fixing portion is constituted by an engaging portion which is fixed to form a constricted space on the back surface of the decorative plate, and a locking portion which the front panel is inserted into the constricted space. Ru. Then, the decorative plate may be fixed such that the engaging portion sandwiches the locking portion.

According to this configuration, the vibration applied to the decorative plate by the user is reliably transmitted from the engaging portion to the front panel through the locking portion in the fixing portion of the decorative plate. Therefore, the vibration is reliably transmitted to the acceleration sensor fixed to the front panel. Thus, the acceleration sensor can more reliably detect the vibration applied to the decorative plate.

According to the dishwasher of the present invention, even if a decorative plate without an operation unit or a handle is attached to improve the design, the washing tank can be easily pulled out and stored, and the washing operation can be performed. Therefore, it is useful as a dishwasher which is used as a built-in system kitchen and is required to have a uniform design.

3, 36

dishes

4, 47

dish basket

7, 50

washing pump

8, 48 washing nozzle 9 water feeding valve 10 water feeding hose 14

main body

15, 33, 73

washing tank

16, 17, 31a, 34

slide rail

18, 54

rack gear

19, 52 Drive motor 20

gear

21, 37 inner lid 22 packing 23 door 24

handle portion

31, 71 case 32 front opening 35 top opening 38 parallel link mechanism 39

seal

40, 74 door 41 operation panel (front panel)
41a

lower panel

41b, 41d locking portion 41c control portion fixing portion 42 decorative plate 42a decorative plate mounting bracket (engagement portion)
42b, 44b Screw 43 Handle 44 Control unit 44a Printed circuit board 45 Acceleration sensor (sensor)
46 Operation part 49 Heater 51 Drive device 53 Pinion gear 75 Wash space 77 Lower dish cage 78 Upper dish cage 80 Support mechanism W Narrow space

Claims

A housing having a front opening at the front,
A tableware basket which can be put in and out of the case and which accommodates dishes.
A moving unit including a door covering the front opening;
A support mechanism configured to support the moving unit on the casing in a movable manner back and forth;
A driving device having a driving unit for moving the moving unit at least forward or backward;
A sensor for detecting a vibration applied to the door;
A control unit that controls the drive device in accordance with the vibration detected by the sensor;
The door includes a front panel provided on the front of the moving unit, and a decorative board attached to the front panel.
The sensor is substantially fixed to the front panel
dishwasher.
The decorative plate is fixed to the front panel by at least two fixing portions at left and right in a front view,
The sensor is fixed to the front panel, which is located between vertical lines passing through the respective fixing portions in a front view.
A dishwasher according to claim 1.
The fixed part is
An engagement portion fixed to form a constriction space on the back surface of the decorative plate;
The front panel comprises a locking portion inserted into the constriction space;
The decorative plate is fixed such that the engaging portion sandwiches the locking portion.
A dishwasher according to claim 2.