CN211093851U

CN211093851U - Dish washing machine

Info

Publication number: CN211093851U
Application number: CN201920876463.2U
Authority: CN
Inventors: 张永奎; 杨林; 侯琳; 郝素
Original assignee: Qingdao Haier Co Ltd; Qingdao Haier Dishwasher Co Ltd
Current assignee: Qingdao Haier Co Ltd; Qingdao Haier Dishwasher Co Ltd
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-07-28
Anticipated expiration: 2029-06-11

Abstract

The utility model discloses a dish washer, a washing chamber, which is used for washing tableware; the water collecting tank is provided with a groove part, and a through hole is formed in the side wall of the groove part; a water inlet of the circulating pump is communicated with the through hole of the water collecting tank; the flow guide device is arranged in the groove part of the water collecting tank; a cavity is arranged between the flow guide device and the peripheral wall of the groove part, the cavity is communicated with a water inlet of the circulating pump, and a plurality of flow guide holes are arranged on one side of the flow guide device away from the through hole; the heater is arranged in the cavity around the peripheral wall of the groove part; and a pressure switch for detecting the water pressure of the washing water path and connected with the heater. According to the dish washer, the heater is arranged in the groove part, so that the heating efficiency is high, the pump shell volume of the circulating pump does not need to be increased, and the occupied space is reduced; the washing water is guided to one side far away from the water inlet of the circulating pump through the guide device, and can be fully contacted with the heater, so that the heating efficiency is improved; the pressure switch can prevent the situation of dry burning without water when the water pressure is too low, and the system safety is improved.

Description

Dish washing machine

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to a dish washer.

Background

In the drawer dishwasher of the related art, a sump is disposed at a lower portion of a washing chamber to collect water used for washing dishes and then to circulate the collected water by a circulation pump. The existing dish washer generally adopts a circulating pump integrated with a heater to heat washing water so as to improve the cleaning and decontamination effects. However, when the number of sets of tableware is large, the power requirement on the heater is increased, and due to the influence of the size of the heating pipe of the heater, the pump shell of the circulating pump has to be enlarged for achieving the heating purpose by the integrated circulating pump, so that the space occupation of the circulating pump is increased, the occupied space of the dishwasher is large, the heater still works in a water-free state, the condition of dry burning without water is easy to occur, and the safety hazard is caused.

SUMMERY OF THE UTILITY MODEL

Based on this, the to-be-solved technical problem of the utility model is to provide a dish washer that occupation space is little, the cleaning performance is good, prevent dry combustion method.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

a dishwasher, comprising:

a washing chamber for washing dishes;

the water collecting tank is arranged at the bottom of the washing chamber, is provided with a groove part and is used for collecting washing water, and the side wall of the groove part is provided with a through hole;

a water inlet of the circulating pump is communicated with the through hole of the water collecting tank, and a water outlet of the circulating pump is connected with the spraying device;

the flow guide device is arranged in the groove part of the water collecting tank; a cavity is formed between the flow guide device and the peripheral wall of the groove part, the cavity is communicated with a water inlet of the circulating pump, and a plurality of flow guide holes are formed in one side, away from the through hole, of the flow guide device;

the heater is arranged in the cavity around the peripheral wall of the groove part; and

and a pressure switch for detecting the water pressure of the washing water path and connected with the heater.

Further, the pressure switch is arranged on a washing water path between the water outlet of the circulating pump and the spraying device.

Further, the flow guiding device comprises a coarse filter, and the cavity is arranged between the coarse filter and the peripheral wall of the water collecting tank; and a coarse filtering hole is formed in one side, far away from the through hole, of the coarse filter, and the flow guide hole is formed in the coarse filtering hole.

Further, the flow guide device further comprises a fine filter having an open upper portion and an open lower portion; the coarse filter is disposed inside the fine filter through the open upper portion of the fine filter; the cavity is arranged between the fine filter and the inner wall of the water collecting tank; and a fine filter screen is arranged on one side of the fine filter, which is far away from the through hole, and meshes of the fine filter screen form the flow guide holes.

Further, the flow guide device comprises a fine filter having an open upper portion and an open lower portion; the cavity is arranged between the fine filter and the inner wall of the water collecting tank; a fine filter screen is arranged on one side of the fine filter, which is far away from the through hole, and meshes of the fine filter screen form the flow guide holes; a coarse filter is also arranged in the water collecting tank, and the coarse filter penetrates through the open upper part of the fine filter and is arranged in the fine filter.

Further, the coarse filter has a cylindrical shape with a grid forming the coarse filter holes.

Further, the filter device further comprises a flat filter, wherein the flat filter covers the groove part of the water collecting tank and is arranged around the coarse filter.

Furthermore, a water outlet is formed in the water collecting tank, and a drainage pump is arranged at the water outlet.

Further, the heater comprises an integrated heating pipe, and the heating pipe is inserted into the cavity of the water collecting tank along the vertical direction and fixed.

Compared with the prior art, the utility model discloses an advantage is with positive effect:

according to the dish washing machine, the heater is arranged in the groove part of the water collecting tank, the heating efficiency is high, the pump shell volume of the circulating pump does not need to be increased, the pump shell volume is small, and the occupied space of the dish washing machine is reduced; the washing water changes the water flow direction through the flow guiding effect of the flow guiding device, and is guided to one side far away from the water inlet of the circulating pump, so that the washing water can be fully contacted with the heater, the heating efficiency of the heater is further improved, and the washing effect is improved; through setting up pressure switch, can prevent to take place the condition that anhydrous dry combustion method burns when water pressure undersize, improve system security.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of a water collecting tank, a filter and a circulating pump according to a first embodiment of the dishwasher of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a partial cross-sectional view of FIG. 1;

fig. 4 is a schematic structural diagram of a heater according to a first embodiment of the present invention;

FIG. 5 is a schematic view of a flow path of the washing water according to the first embodiment of the present invention;

FIG. 6 is a schematic view of a water collecting tank, a filter and a circulating pump according to a second embodiment of the dishwasher of the present invention;

description of reference numerals:

a water collection sump 100; a drain port 110; a cavity 120;

a circulation pump 200; a water inlet 210; a water outlet 220; a heating means 230;

a heater 300; a horizontal section 310; a first vertical section 320; a second vertical section 330; a heater 300';

a fine filter 410; coarse filters 420, 420'; a planar filter 430;

a pressure switch 500;

a fixing member 600;

the circulation pipe joint 700.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 5, the embodiment of the dishwasher of the present invention is first.

The dishwasher includes a washing chamber, a sump 100, a circulation pump 200, a drain pump, and a spray device provided in the washing chamber. The drawings in this embodiment only show the parts of the water collecting tank 100, the circulating pump 200, and the like, and the rest are conventional structures and will not be described in detail. The washing chamber is used for washing dishes. A water collection sump 100 is provided at the bottom of the washing chamber for collecting washing water used in the washing process. The sump 100 may be formed by a recess formed in the bottom of the washing chamber, or may be fixed to the bottom of the washing chamber as a separate member. In this embodiment, the water catch bowl includes the water catch bowl body, and the sunken concave part that forms in the middle of the water catch bowl body, concave part are cylindrical, and the water catch bowl body is connected with the bottom of washing room. The side wall of the groove part of the water collecting tank is provided with a through hole for being communicated with a water inlet 210 of a circulating pump 200, a water outlet 220 of the circulating pump 200 is connected with a spraying device arranged in the washing chamber, and the spraying device sprays and washes the tableware in the washing chamber. The circulation pump 200 transfers the collected washing water from the sump 100 to the spray device to circulate the water. The sump 100 is provided with a drain port 110, and the drain pump is communicated with the drain port 110 for draining the washing water when the washing is completed. Wherein, a heating part (not shown) may be provided in the circulation pump 200 for heating the washing water to improve the washing effect. A heater 300 is further disposed in the groove portion of the water collecting sump 100, wherein at least a portion of the heater is disposed near the through-hole, i.e., near the water inlet 210 of the circulation pump 200. The heater 300 heats the washing water, and since the water flow speed at the water inlet 210 of the circulation pump is high, when the heater 300 is disposed at this position, the water flowing through the heater in unit time can be increased to improve the heating efficiency of the washing water, thereby improving the cleaning effect. The heater 300 may be disposed in whole or in part near the water inlet of the circulation pump. In order to further improve the heating efficiency of the heater, a flow guide device is further arranged in the water collection tank 100, a cavity 120 is formed between the flow guide device and the inner wall of the water collection tank 100, and the cavity 120 is communicated with a water inlet of the circulating pump 200. The heater 300 is disposed in the cavity 120 around the groove portion peripheral wall. And a plurality of flow guide holes for flow guide are arranged on one side of the flow guide device, which is far away from the through hole. When the diversion device is not provided, when the washing water enters the groove part of the water collection tank, the washing water directly flows through the through hole from the middle part of the water collection tank 100 and enters the circulating pump 200, and the washing water is heated only by the part of the heater positioned at the through hole, so that the heating efficiency is low. As shown in fig. 5, after the diversion device is arranged, the washing water changes the water flow direction through the diversion effect of the diversion device, and the washing water is guided to the side far away from the water inlet 210 of the circulating pump, so that the washing water can be fully contacted with the heater 300, the heating efficiency of the heater is further improved, and the washing effect is improved. The dishwasher further includes a pressure switch 500 for checking a water pressure condition in the entire waterway. The pressure switch 500 is connected with the heater 300, when the water is in a water shortage state, the pressure switch 500 does not act, the heater 300 is disconnected, the situation that water is not dried when the water pressure is too low is prevented, and danger is avoided. When the water pressure in the waterway reaches a preset value, the pressure switch 500 is actuated, and the heater 300 is operated.

According to the dish washing machine, the heater 300 is arranged in the groove part of the water collecting tank, so that the heating efficiency is high, the pump shell volume of the circulating pump 200 does not need to be increased, the pump shell volume is small, and the occupied space of the dish washing machine is reduced; the washing water changes the water flow direction through the flow guiding effect of the flow guiding device, and is guided to one side far away from the water inlet of the circulating pump, so that the washing water can be fully contacted with the heater, the heating efficiency of the heater 300 is further improved, and the washing effect is improved; through setting up pressure switch 500, can prevent to take place the condition that anhydrous dry combustion method burns when water pressure is undersized, improve system security.

In this embodiment, the installation position of the pressure switch 500 may be set on the pump housing of the circulation pump 200 or other positions of the water path. Preferably, the pressure switch 500 is disposed on a waterway between the water outlet 220 of the circulation pump and the water outlet of the spray device, so as to detect the water pressure. In this embodiment, the circulation pump is disposed at one side of the water collection tank, the water outlet of the circulation pump is disposed upward, and the water collection tank 100 is provided with a through hole for installing the circulation pipe joint 700.

In the present embodiment, as shown in fig. 5, the flow guide device includes a coarse filter 420 and a fine filter 410. The fine filter 410 has an open upper portion and an open lower portion. The coarse filter 420 is disposed inside the fine filter 410 through the open upper portion of the fine filter 410. The fine filter 410 has the cavity 120 between it and the inner wall of the sump 100. A fine filter screen is arranged on one side of the fine filter 410, which is far away from the through hole, and meshes of the fine filter screen form the flow guide holes. The lower portion of the fine filter 410 is adapted to communicate with the drain opening. Preferably, the coarse filter 420 is detachably mounted on the open top of the fine filter 410. The coarse filter 420 can filter out large-sized residues and the fine filter 410 can filter out small-sized residues. In this embodiment, the peripheral wall of the coarse filter 420 is provided with coarse filter holes, the coarse filter 420 and the fine filter 410 simultaneously perform a filtering function, and the fine filter 410 performs a flow guiding function. In other embodiments, coarse filter holes may also be provided on the side of the coarse filter 420 facing away from the through-opening, which coarse filter holes also form the flow-guiding holes. That is, the coarse filter 420 and the fine filter 410 perform both filtering and flow guiding functions.

In the present embodiment, the coarse filter 420 has a cylindrical shape having a grid forming the coarse filtering holes, through which large-sized residues are filtered. In other embodiments, the coarse filter 420 may also include a coarse filter mesh and a frame for maintaining the cylindrical shape of the coarse filter mesh, the mesh of the coarse filter mesh forming the coarse filter apertures.

A flat filter 430 is further disposed in the water collection tank, and the flat filter 430 includes a flat filter net configured to cover a groove portion of the water collection tank 100, disposed around the coarse filter. The pore size of which is larger than that of the fine filter 410 and smaller than that of the coarse filter 420. The plane filter can shunt and filter to a great extent, and can solve the problems that only a coarse filter and a fine filter are arranged, the filtering speed is low, and the blockage is easy.

After the washing water in the washing chamber is collected in the water collecting tank 100, part of the washing water enters the coarse filter 420, and enters the cavity 120 between the fine filter 410 and the inner wall of the water collecting tank 100 after being filtered by the coarse filter 420 and the fine filter 410 in sequence; part of the washing water is filtered by the flat filter 430 and then enters the cavity 120. The coarse filter 420 and/or the fine filter 410 are used as a filtering structure and a flow guide device at the same time, a flow guide structure is not required to be independently arranged, the structure is simple, and the flow guide device guides water flow to the heater 300 far away from the water inlet of the circulating pump, so that the heating efficiency of the heater is improved; meanwhile, the fine filter 410 and the coarse filter 420 also protect the heater 300, and prevent the residue from being accumulated on the heater 300.

Specifically, as shown in fig. 4, the heater 300 includes an integrated heating pipe, which is vertically inserted into the cavity 120 of the water collecting tank to be fixed. The heating tube includes a horizontal section 310, a first vertical section 320, and a second vertical section 330. The horizontal section 310 is disposed in the cavity 120, is configured to surround the inner circumferential wall of the groove portion of the water collecting tank 100, and is disposed horizontally. In this embodiment, the horizontal section 310 has a circular arc shape and is surrounded between the fine filter 410 and the inner wall of the water collecting tub 100. The upper end of the first vertical section 320 is connected with the first end of the horizontal section 310; the upper end of the second vertical section 330 is connected to the second end of the horizontal section 310. The first vertical section 320 and the second vertical section 330 are fixed to the water collection tub 100 by a fixing member 600. The lower ends of the first vertical section 320 and the second vertical section 330 are terminals. The lower part of the water collecting tank 100 is provided with an insertion part, during installation, the heater 300 is installed from top to bottom, the first vertical section 320 and the second vertical section 330 are vertically inserted into the insertion part and extend out of the water collecting tank, and then are fixed through the fixing piece 600, so that the installation and the disassembly are simple and convenient. In another embodiment, the heating pipes may be all horizontally arranged, and the heating pipes are horizontally inserted into the water collecting tank 100 and fixed.

The working process of the dishwasher is as follows: the water supplied into the washing chamber is collected in the water collection sump 100, and the water collected in the water collection sump 100 is heated by the heater 300, and then is transferred to the spray device through the circulation pump 200 and the circulation pipe, by which the washing water is sprayed onto the dishes to wash the dishes. Thereby, the residue on the dishes is separated from the dishes and collected in the water collecting tub 100 together with the water. The residue in the washing water in the sump 100 is filtered by the filter, and the filtered water is re-delivered to the spray device by the circulation pump 200 for washing dishes. After the washing is completed, the residue may be collected in the coarse filter 420, and the washing water is discharged to the outside of the dishwasher through the drain pump and the drain pipe.

Example two

In this embodiment, as shown in fig. 6, the flow guiding device comprises a coarse filter 420 ', and the cavity 120 is arranged between the coarse filter 420' and the peripheral wall of the water collecting tank. A coarse filtering hole is formed on one side of the coarse filter 420' far away from the through hole, and the coarse filtering hole forms the flow guide hole. In this embodiment, the coarse filter 420' not only performs a filtering function, but also performs a flow guiding function. In this embodiment, the heating pipe 300 'is horizontally disposed, and the heating pipe 300' is horizontally inserted into the water collecting tank 100 to be fixed.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.

Claims

1. A dishwasher, comprising:

a washing chamber for washing dishes;

2. The dishwasher of claim 1, wherein the pressure switch is disposed on the wash water path between the outlet of the circulation pump and the spray device.

3. The dishwasher of claim 1, wherein the flow guide device comprises a coarse filter having the cavity between the coarse filter and a sump peripheral wall; and a coarse filtering hole is formed in one side, far away from the through hole, of the coarse filter, and the flow guide hole is formed in the coarse filtering hole.

4. The dishwasher of claim 3, wherein the deflector further comprises a fine filter having an open upper portion and an open lower portion; the coarse filter is disposed inside the fine filter through the open upper portion of the fine filter; the cavity is arranged between the fine filter and the inner wall of the water collecting tank; and a fine filter screen is arranged on one side of the fine filter, which is far away from the through hole, and meshes of the fine filter screen form the flow guide holes.

5. The dishwasher of claim 1, wherein the deflector comprises a fine strainer having an open upper portion and an open lower portion; the cavity is arranged between the fine filter and the inner wall of the water collecting tank; a fine filter screen is arranged on one side of the fine filter, which is far away from the through hole, and meshes of the fine filter screen form the flow guide holes; a coarse filter is also arranged in the water collecting tank, and the coarse filter penetrates through the open upper part of the fine filter and is arranged in the fine filter.

6. The dishwasher of any one of claims 3 to 5, wherein the coarse filter has a cylindrical shape having a grid, the grid forming the coarse filter holes.

7. The dishwasher of claim 6, further comprising a flat filter covering a recessed portion of the sump, disposed around the coarse filter.

8. The dishwasher of claim 1, wherein the sump is provided with a drain opening, and a drain pump is provided at the drain opening.

9. The dishwasher of claim 1, wherein the heater comprises an integrated heating pipe, and the heating pipe is vertically inserted into a cavity of the water collecting tank and fixed.