CN114246532B

CN114246532B - Dish-washing machine

Info

Publication number: CN114246532B
Application number: CN202011003739.XA
Authority: CN
Inventors: 卢家良; 林煜; 李国良; 莫建刚
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2024-03-15
Anticipated expiration: 2040-09-22
Also published as: CN114246532A

Abstract

The invention belongs to the technical field of electrical equipment, and particularly relates to a dish washer. The dish washer comprises a shell, a cavity, a base and a water inlet channel, wherein the cavity is arranged in the shell, the base is arranged at the bottom of the cavity, a liquid collecting tank is arranged in the base, the water inlet channel is arranged between the base and the cavity or in the base, the water inlet channel is communicated with the liquid collecting tank and the outside of the cavity, and a first liquid level sensor is arranged in the water inlet channel or at a water outlet of the water inlet channel. According to the dish washer disclosed by the invention, the water liquid entering from the outside of the shell can flow into and be collected into the liquid collecting groove through the water inlet channel, so that the damage of the water liquid flowing from the outside of the shell to the electric devices in the base is effectively prevented, the problem of external water inlet of the dish washer is prompted to a user, the external water inlet phenomenon is effectively prevented from continuing, the dish washer is overhauled in time, the damage of the electronic devices in the base is reduced or avoided, and the reliability of the dish washer in operation is improved.

Description

Dish-washing machine

Technical Field

The invention belongs to the technical field of electrical equipment, and particularly relates to a dish washer.

Background

Because the applicable environments of the dish washer are different, when a user uses the dish washer, the dish washer is inevitably placed in a relatively severe environment (such as a balcony or other environment easy to wet and leak). After a long period of use, there may be a splash and a splash of water from outside the dishwasher, resulting in an internal water intake of the dishwasher. Under the condition that the dishwasher is not aware of water inflow from outside to inside, damage to electronic components in the dishwasher can be caused, so that the normal working process of the dishwasher is influenced, and certain potential safety hazards exist.

Disclosure of Invention

The invention aims to at least solve the problem that whether the dishwasher has external water inflow can not be judged. This object is achieved by:

the present invention proposes a dishwasher comprising:

a housing;

the cavity is arranged in the shell;

the base is arranged at the bottom of the cavity, and a liquid collecting tank is arranged in the base;

the water inlet channel is arranged between the base and the cavity or in the base, the water inlet channel is communicated with the liquid collecting tank and the outside of the cavity, and a first liquid level sensor is arranged in the water inlet channel or at the water outlet of the water inlet channel.

According to the dish washer disclosed by the invention, the water inlet channel is arranged between the base and the cavity or in the base, so that the water inlet channel is communicated with the liquid collecting tank in the base and the outside of the cavity, when water outside the shell enters the inside of the shell, the water can flow into and be collected into the liquid collecting tank through the water inlet channel, so that the water flowing from the outside of the shell is effectively prevented from damaging electric devices in the base, meanwhile, the first liquid level sensor alarms according to the water flowing into the base from the outside of the shell because the first liquid level sensor is arranged in the water inlet channel or at the water outlet of the water inlet channel, so that the problem of external water inlet of the dish washer is prompted for a user, the continuous occurrence of external water inlet phenomenon is effectively prevented, the dish washer is overhauled in time, the damage to electronic devices in the base is reduced or avoided, and the reliability of the dish washer in operation is improved.

In addition, the dishwasher according to the present invention may have the following additional technical features:

in some embodiments of the invention, the water inlet channel comprises at least one first channel bent towards the base, the first channel being provided at the water inlet of the water inlet channel.

In some embodiments of the invention, the water inlet channel further comprises at least one second channel disposed on a side plate of the base, the second channel being located below the first channel and extending along a length of the side plate.

In some embodiments of the invention, the water inlet channel further comprises at least one third channel, the third channel is communicated with the tail end of the extending direction of the second channel and the water outlet, and the third channel is used for buffering the impact of the water.

In some embodiments of the present invention, the water inlet channel is disposed between the base and the cavity, a groove is disposed on a surface of at least one side plate of the base, and the second channel and the third channel are disposed in the groove.

In some embodiments of the invention, the first liquid level sensor comprises:

the cover body is connected with the base and is provided with at least one first opening;

the floating piece is arranged in a containing space formed by the cover body and the base in a floatable mode;

and the micro switch is connected with the cover body and is arranged opposite to the floating piece.

In some embodiments of the present invention, the top of the cover body is provided with a second opening, the micro switch is disposed at the second opening, and the top of the floating member is provided with a first protruding end disposed opposite to the contact of the micro switch.

In some embodiments of the present invention, a shroud is further disposed on the bottom plate of the base, two sides of the shroud are respectively connected to the side plates of the base, the water outlet and the first liquid level sensor are both disposed in a containing space formed by the shroud and the side plates, and a height dimension of the shroud is greater than or equal to a shortest linear distance dimension between the contact and the first extension end.

In some embodiments of the invention, the dishwasher further comprises a sump, an opening is arranged at the bottom of the base, the sump is arranged in the opening, and the sump is arranged on the sump.

In some embodiments of the invention, the drip pan is further provided with a plurality of flow guide grooves, the flow guide grooves being disposed obliquely toward the drip groove.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. Wherein:

FIG. 1 is a schematic view of a portion of a dishwasher in accordance with an embodiment of the invention;

FIG. 2 is a schematic view of a portion of the structure of the base in FIG. 1;

FIG. 3 is a schematic view of a partial cross-sectional structure of the base of FIG. 1;

fig. 4 is a schematic view of a portion of the first liquid level sensor in fig. 3.

The reference numerals in the drawings are as follows:

100: dish washing machine;

10: a cavity;

20: base, 21: bottom plate, 211: support base, 22: rear side plate, 23: coaming plate;

30: water inlet channel, 31: first channel, 32: second channel, 33: third channel, 34: water inlet, 35: water outlet, 36: a groove;

40: first level sensor, 41: cover body, 411: mounting portion, 412: bracket portion 413: first opening, 414: second opening, 42: float member, 421: body portion, 422: first projecting end, 423: second protruding end, 43: microswitch, 431: a contact;

50: a drip pan, 51: sump, 52: second level sensor, 53: overflow pipe, 54: diversion trenches, 55: and (5) supporting the ribs.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

As shown in conjunction with fig. 1 to 3, the dishwasher 100 of the present embodiment includes a housing (not shown), a chamber 10, a base 20, and a water inlet passage 30. The cavity 10 is arranged in the shell, the base 20 is arranged at the bottom of the cavity 10 and is arranged in the shell together with the cavity 10, and a plurality of electronic devices are arranged in the base 20. The base 20 is internally provided with the liquid collecting tank 51, the water inlet channel 30 is arranged between the base 20 and the cavity 10 or in the base 20, and the water inlet channel 30 is communicated with the liquid collecting tank 51 and the outside of the cavity 10, so that the liquid collecting tank 51 can collect condensed water flowing out of the cavity 10 and water entering the base 20 from the outside of the shell. A first liquid level sensor 40 is disposed in the water inlet channel 30 or at the water outlet 35 of the water inlet channel 30, and the first liquid level sensor 40 is used for detecting whether water flows out of the water inlet channel 30. Wherein the direction indicated by the arrow in fig. 1 is the direction of water flow outside the housing.

According to the dish washer 100 disclosed by the invention, the water inlet channel 30 is arranged between the base 20 and the cavity 10 or in the base 20, so that the water inlet channel 30 is communicated with the liquid collecting groove 51 in the base 20 and the outside of the cavity 10, when water outside the shell enters the inside of the shell, the water can flow into and be collected into the liquid collecting groove 51 through the water inlet channel 30, so that the damage to electronic devices in the base 20 caused by the water flowing from the outside of the shell is effectively prevented, meanwhile, the first liquid level sensor 40 alarms according to the water flowing into the base 20 from the outside of the shell because the first liquid level sensor 40 is arranged in the water inlet channel 30 or at the water outlet 35 of the water inlet channel 30, so that the problem of external water inlet of the dish washer 100 is prompted, the continuous occurrence of external water inlet phenomenon is effectively prevented, the dish washer 100 is overhauled timely, the damage to the electronic devices in the base 20 is reduced or avoided, and the reliability of the dish washer 100 in operation is improved.

The electronic device of the present embodiment is an electronic control part disposed in the base 20, including but not limited to an electronic control part such as a washing pump, a drainage pump, a solenoid valve for controlling a water softener, a water inlet valve, a diaphragm pump, a pressure detecting device, a heating device, and a PCB electronic control board. In practical applications, the electronic device is generally connected and fixed to the inner top wall or side wall of the base 20, and extends toward the bottom of the base 20. The base 20 of the present embodiment includes a bottom plate 21 and a plurality of side plates including a left side plate (not shown in the drawing), a right side plate (not shown in the drawing), and a rear side plate 22. The bottom plate 21 is provided with a plurality of supporting seats 211, and the electronic devices connected with the side plates of the base are supported and fixed by the supporting seats 211, so that a height difference is formed between the bottoms of the electronic devices and the bottom plate 21, and the electronic devices are prevented from being damaged by water on the bottom plate 21.

As shown in fig. 1 and 2, the water inlet channel 30 of the dishwasher 100 of the present embodiment is provided between the cavity 10 and the base 20, and a certain gap is left at the junction of the cavity 10 and the base 20 when they are installed, thereby forming the water inlet channel 30. For convenience of description in this embodiment, only a gap is shown between the back plate of the cavity 10 and the rear side plate 22 of the base 20, and the water inlet channel 30 is formed. The water inlet passage 30 of the present embodiment includes a first passage 31, a second passage 32, and a third passage 33 that are sequentially communicated. The first channel 31 is disposed at the water inlet 34 of the water inlet channel 30, and the first channel 31 is curved toward the base 20, so as to facilitate introducing the water at the water inlet 34 into the water inlet channel 30. The second passage 32 is provided below the first passage 31, and the second passage 32 extends along the longitudinal direction of the rear side plate 22. The third channel 33 is communicated with the end of the extending direction of the second channel 32 and the water outlet 35, and is used for guiding the water discharged from the second channel 32 to the water outlet 35. The third channel 33 in this embodiment has a stepped structure, so that the flow rate of the water can be effectively slowed down, the impact on the first liquid level sensor 40 caused by the water flowing out from the water outlet 35 is reduced, and the operation reliability of the first liquid level sensor 40 is ensured.

The surface of the rear side plate 22 in this embodiment is provided with the groove 36, and the second channel 32 and the third channel 33 are disposed in the groove 36, so as to shield the water in the second channel 32 and the third channel 33, prevent the water in the second channel 32 and the third channel 33 from directly overflowing to the inner surface of the rear side plate 22, prevent damage to the electronic devices disposed on the inner surface of the rear side plate 22, and ensure that the water entering the base 20 from the outside of the housing can be discharged into the liquid collecting tank 51 through the water inlet channel 30, and carry out corresponding alarm prompt. The second channel 32 extends along the length direction of the rear side plate 22 and is communicated with the water outlet 35 through the third channel 33, so that water entering from the outside can be concentrated to the water outlet 35 and then discharged, the water yield at the water outlet 35 is improved, and the detection result of the first liquid level sensor 40 is ensured.

In other embodiments of the present application, the water inlet channel 30 may be further disposed in any side plate of the base 20, and the water inlet channel 30 is connected to the sump 51 inside the base 20 and the outer side surface of the base 20, so that water flowing into the housing from the outside of the housing flows into the sump 51 through the water inlet channel 30 inside the base 20, and the first liquid level sensor 40 performs a corresponding alarm, so as to remind a user that the dishwasher 100 of the problem of external water inlet, further effectively prevent the external water inlet phenomenon from happening continuously, overhaul the dishwasher 100 in time, reduce or avoid damage to electronic devices inside the base 20, and improve the reliability of the dishwasher 100 during operation.

In other embodiments of the present application, the water inlet channel 30 may be provided between the left or right side plate of the base 20 and the cavity 10, and the same technical effects as those of the present embodiment can be achieved. The specific arrangement position of the water inlet channel 30 is determined according to the arrangement position of the dish washer 100, and the water inlet 34 of the water inlet channel 30 is arranged towards the inflow direction of the water liquid outside the shell as far as possible.

As shown in fig. 2, 3 and 4, the first liquid level sensor 40 of the present embodiment includes a cover 41, a float 42 and a micro switch 43. The cover 41 is connected to the base 20, and at least one first opening 413 is formed in the cover 41. The floating member 42 is floatably provided in the housing space formed by the cover 41 and the base 20. The micro switch 43 is connected to the cover 41 and is disposed opposite to the float member 42.

Specifically, the cover 41 of the present embodiment includes a mounting portion 411 and a bracket portion 412, the mounting portion 411 is provided on the bottom plate 21 of the base 20, the bottom of the mounting portion 411 is in a cylindrical structure, and a first opening 413 penetrating the mounting portion 411 is provided at the bottom thereof, so that the water flowing out of the water outlet 35 can flow into the interior of the mounting portion 411 through the first opening 413 on one side of the mounting portion 411 and act on the float member 42, and at the same time, the internal water of the mounting portion 411 can flow out of the mounting portion 411 through the first opening 413 on the other side of the mounting portion 411 and finally flow into the sump 51. In other embodiments of the present application, only one first opening 413 may be provided in the mounting portion 411 for introducing the water flowing out of the water outlet 35 into the interior of the mounting portion 411. The mounting portion 411 is disposed at a central position extending upward and has a second opening 414 formed at a top thereof, and a support portion 412 is further disposed at the top of the mounting portion 411, and the support portion 412 may be integrally formed with the mounting portion 411 or detachably connected to the mounting portion 411. The micro-switch 43 is disposed at the second opening 414 and is connected to the bracket 412, wherein the micro-switch 43 is provided with a contact 431 for actuating the micro-switch 43, and the contact 431 is disposed towards the float member 42. The floating member 42 is disposed in a containing space formed by the mounting portion 411 and the bottom plate 21, and the floating member 42 includes a body portion 421, a first protruding end 422, and a second protruding end 423 sequentially disposed along an axial direction, where the first protruding end 422 is disposed opposite to the contact 431, and is used for touching the contact 431. The second projecting end 423 has a smaller diameter than the upwardly extending portion of the mounting portion 411 to facilitate guiding the overall raising of the float member 42. When water enters the inside of the installation part 411, the floating piece 42 rises under the buoyancy action of the water, and under the guiding action of the second extending end 423, the first extending end 422 is contacted with the contact 431, so that the micro switch 43 is triggered to give an alarm, and further the problem that water enters from the outside is reminded of the dishwasher 100, further the phenomenon that water enters from the outside is effectively prevented from continuing to happen timely, the dishwasher 100 is overhauled timely, damage to electronic devices in the base 20 is reduced or avoided, and the reliability of the dishwasher 100 in operation is improved. The floating member 422 may be selected from a material having a density less than water or a hollow structure made of a material having a density greater than water.

As shown in fig. 4, in order to ensure that the water flowing out from the water outlet 35 can effectively act on the float member 42, the float member 42 triggers the micro switch 43 to alarm, and the shroud 23 is further provided on the bottom plate 21 in this embodiment. The water outlet 35 of the present embodiment is disposed near the right side plate, and both sides of the shroud 23 are connected to the rear side plate 22 and the right side plate of the base 20, respectively, so as to form a containing space. The water outlet 35 and the first liquid level sensor 40 are both arranged in the containing space formed by the coaming 23 and the two side plates, and the height dimension of the coaming 23 is larger than or equal to the shortest linear distance dimension between the contact 431 and the first extending end 422. When water flows out from the water outlet 35, the water accumulates in the containing space formed by the coaming plate 23 and the side plate. When the liquid level is greater than the height of the shroud 23, the water can flow into the sump 51 through the top of the shroud 23. Since the height dimension of the shroud 23 of the present embodiment is greater than or equal to the shortest linear distance dimension between the contact 431 and the first protruding end 422, when the liquid level reaches the height of the shroud 23, the floating member 42 contacts the contact 43 under the buoyancy of the water and gives an alarm, thereby ensuring reliable operation of the first liquid level sensor 40.

As further shown in fig. 2, the dishwasher 100 of the present embodiment further includes a drip pan 50. The bottom of the base 20 is provided with an opening, the liquid collecting disc 50 is arranged in the opening, and the liquid collecting tank 51 is arranged on the liquid collecting disc 50. The drip pan 50 may be connected to the base 10 in a plugging manner, so that the drip pan 50 is conveniently detached, and the drip tank 51 is cleaned. The opening is provided with a socket, the liquid collecting disc 50 is provided with a plug which can be inserted into the socket, and the installation process of the liquid collecting disc 50 and the base 10 is realized through the matching of the plug and the socket. The liquid collecting tank 51 is also provided with a second liquid level sensor 52, and the second liquid level sensor 52 can alarm according to the liquid level in the liquid collecting tank 51. When the first liquid level sensor 40 does not alarm and the second liquid level sensor 52 alarms, the user can be reminded of the occurrence of water leakage inside the cavity 10. The second level sensor 52 may be identical to the first level sensor 40 in structure, or may be another type of level sensor. The overflow pipe 53 is further arranged in the liquid collecting tank 51, the overflow pipe 53 is arranged by extending upwards from the bottom surface of the liquid collecting tank 51, the pipe orifice height of the overflow pipe 53 is higher than or equal to the detection height of the second liquid level sensor 52, so that normal alarm of the second liquid level sensor 52 is guaranteed, and when the accumulated water liquid level in the liquid collecting tank 51 reaches the height of the overflow pipe 53, the accumulated water can be discharged out of the base 20 through the overflow pipe 53, so that damage to electronic devices caused by excessive accumulated water in the base 20 is effectively prevented.

The drip pan 50 of the present embodiment is further provided with a plurality of flow guide grooves 54, and the flow guide grooves 54 are inclined toward the drip groove 51. Thereby being convenient for draining the water liquid in the base 20 into the liquid collecting tank 51 according to a set route, triggering the second liquid level sensor 52 to give a corresponding alarm when the liquid level in the liquid collecting tank 51 reaches a certain height, and reminding the user of water leakage in the cavity 10. The drip pan 50 of the present embodiment is further provided with a plurality of supporting ribs 55, and the electronic device connected to the inner top wall of the base 20 is further supported and fixed by the supporting ribs 55, so that a height difference is formed between the bottom of the electronic device and the drip pan 50, and the electronic device is prevented from being damaged by the water on the drip pan 50. Further, the drip pan 50 of the present embodiment has a slope structure provided toward the drip tank 51, and the slope structure can more effectively drain the water on the drip pan 50 into the drip tank 51.

The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims

1. A dishwasher, comprising:

a housing;

the cavity is arranged in the shell;

the water inlet channel is arranged between the base and the cavity, the water inlet channel is communicated with the liquid collecting tank and the outside of the cavity, and a first liquid level sensor is arranged in the water inlet channel or at the water outlet of the water inlet channel;

the water inlet channel comprises at least one first channel which is bent towards the base, the first channel is arranged at a water inlet of the water inlet channel, the water inlet channel further comprises at least one second channel which is arranged on a side plate of the base, the second channel is arranged below the first channel and extends along the length direction of the side plate, a groove is arranged on the surface of at least one side plate of the base, and the second channel is arranged in the groove;

the water inlet channel further comprises at least one third channel, the third channel is communicated with the tail end of the extending direction of the second channel and the water outlet, and the third channel is used for buffering the impact of the water;

the third channel is in a ladder-shaped structure;

the third channel is arranged in the groove.

2. The dishwasher of claim 1, wherein the first level sensor comprises:

3. The dishwasher of claim 2, wherein the top of the cover is provided with a second opening, the micro switch is provided at the second opening, and the top of the float is provided with a first protruding end opposite to the contact of the micro switch.

4. A dishwasher according to claim 3, wherein the bottom plate of the base is further provided with a shroud, two sides of the shroud are respectively connected with two side plates of the base, the water outlet and the first liquid level sensor are both disposed in a containing space formed by the shroud and the two side plates, and the height dimension of the shroud is greater than or equal to the shortest linear distance dimension between the contact and the first extending end.

5. The dishwasher of claim 1 further comprising a drip pan, wherein an opening is provided in the bottom of the base, the drip pan being disposed within the opening, the drip pan being provided with the sump.

6. The dishwasher of claim 5, wherein the sump is further provided with a plurality of flow guide grooves, the flow guide grooves being inclined toward the sump.