CN108523798B

CN108523798B - A shower nozzle, shower nozzle subassembly, waterway system and dish washer for dish washer

Info

Publication number: CN108523798B
Application number: CN201810326397.1A
Authority: CN
Inventors: 丁斐; 唐相伟; 谢宝林; 汪耀东
Original assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Current assignee: Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Priority date: 2018-04-12
Filing date: 2018-04-12
Publication date: 2021-10-15
Anticipated expiration: 2038-04-12
Also published as: CN108523798A

Abstract

The invention relates to the technical field of kitchen appliances, and discloses a spray head, a spray head assembly, a waterway system and a dish washing machine for the dish washing machine. The spray head consists of a spherical shell and a cylindrical shell, and 3-8 slits are formed in the spherical shell. The spray head assembly comprises four spray heads which surround to form a rectangle. The waterway system is composed of a water pump, a lower waterway, a lower spray arm, a spray head assembly, an upper waterway and an upper spray arm. The water pump is fixed at the lower part of the bottom shell; the lower waterway is positioned at the lower part of the bottom shell and is connected with an upper outlet b of the water pump; the spray head is connected with the lower water circuit and is positioned on the bottom shell; the water inlet of the lower spray arm penetrates through the bottom shell to be connected with the upper outlet a of the water pump and is positioned above the bottom shell; the upper waterway is connected with a rear outlet of the water pump and is positioned behind the lower bowl basket; the upper spraying arm is connected with the upper waterway and is positioned below the upper bowl basket. The special spray nozzles are additionally arranged on the upper surface of the bottom shell and the lower surface of the lower bowl basket, so that the washing range of the dish washing machine is expanded, the washing effect is enhanced, and the full-range effective washing is realized.

Description

A shower nozzle, shower nozzle subassembly, waterway system and dish washer for dish washer

Technical Field

The invention relates to the technical field of dish washing machines, in particular to a spray head, a spray head assembly, a water path system and a dish washing machine with the water path system.

Background

A common waterway system of the existing dish-washing machine is generally composed of a water pump, a pipeline and a lower spray arm, and the dish-washing machine with larger capacity is also provided with an upper spray arm and even a middle spray arm; when the dish washer works, the washing water pump presses water flow into each spray arm, and finally the water flow flows to the tableware through the holes on the spray arms, so that the purpose of cleaning the tableware is realized. However, this method of directing the spray only through the openings in the spray arm does not provide cleaning of the corner areas of the dishwasher chamber, or provides poor cleaning of the corner areas.

Recently, a technology for increasing a washing range by actively or passively rotating a spray arm or adding an additional spray arm to the spray arm has been developed, but the technology is not only high in cost and increased in failure rate, but also has a limited improvement in washing effect.

Disclosure of Invention

The invention aims to overcome the problem of small effective washing range in the prior art, provides a spray head for a dish washing machine, a spray head assembly consisting of the spray head, a water path system comprising the spray head assembly and the dish washing machine with the water path system, and better solves the problem.

In order to accomplish the above object, according to one aspect of the present invention, there is provided a spray head for a dishwasher, comprising a spherical housing and a cylindrical housing; the spherical shell and the cylindrical shell are hollow and communicated; the spherical shell is provided with at least three slit-shaped nozzles which are transversely or vertically arranged slits; the forward projection of each slit is the same rectangle, and the length a of the rectangle and the radius R of the spherical shell have the following relationship: 2R is more than a and is more than or equal to R.

Preferably, the radius R of the spherical shell is greater than the radius R of the cylindrical shell; the radius r of the cylindrical shell is 5-25mm, and the height h of the cylindrical shell is more than r.

Preferably, the number of the strip seams is 3-8.

Preferably, the width b of the rectangle is 0.5-1.5 mm; the short sides of the rectangles on the same side are on the same straight line; the strip seams are uniformly distributed on the spherical shell.

Preferably, the central angle subtended by the arc of the long side on which each of the slits lies is 105 °.

In a second aspect, the present invention provides a spray head assembly for a dishwasher, comprising a plurality of spray heads according to the first aspect of the present invention arranged in a distributed manner; the nozzles of the plurality of spray heads face to the geometric center of the cavity of the dishwasher.

Preferably, the number of the spray heads is 3-5.

Preferably, the number of the spray heads is four, and the four spray heads are respectively positioned at four corners of the dishwasher cavity; the connecting line between the spherical center of the spherical shell of the first spray head and the spherical center of the spherical shell of the second spray head is a first horizontal line, and the connecting line between the spherical center of the spherical shell of the third spray head and the spherical center of the spherical shell of the fourth spray head is a second horizontal line; an included angle theta 1 between the right side of the long side of the upper strip seam of the first spray head and the first horizontal line is 15-60 degrees; an included angle theta 2 between the right side of the long side of the upper strip seam of the second spray head and the first horizontal line is 20-75 degrees; an included angle theta 3 between the right side of the long side of the upper strip seam of the third spray head and the second horizontal line is 15-90 degrees; and an included angle theta 4 between the right side of the long side of the upper strip seam of the fourth spray head and the second horizontal line is 15-90 degrees.

Preferably, θ 1 is 20 °; θ 2 is 60 °; said θ 3 is 30 °; the θ 4 is 60 °.

The invention provides a waterway system of a dishwasher, which comprises a water pump, a lower waterway, a lower spray arm, an upper waterway, an upper spray arm and any spray head assembly in the second aspect of the invention; the water pump is fixed at the lower part of the bottom shell and comprises an upper outlet a, an upper outlet b, a rear outlet and a water inlet, the upper outlet a is connected with the lower spray arm, the upper outlet b is connected with the inlet of the lower waterway, and the rear outlet is connected with the upper waterway; the lower waterway is positioned at the lower part of the bottom shell and is provided with an inlet and a plurality of outlets, each outlet is respectively connected with the inlets of a plurality of sprayers of the sprayer assembly in a one-to-one correspondence manner, and the sprayer assembly is arranged above the bottom shell; the upper water way is positioned at the rear part of the lower bowl basket, the upper water way is connected with the upper spray arm, the upper spray arm is positioned below the upper bowl basket, and the lower spray arm is positioned above the bottom shell.

Preferably, the lower waterway has four inlets, the number of the spray heads of the spray head assembly is four, and each outlet is respectively connected with the inlets of the four spray heads in a one-to-one correspondence manner.

In a fourth aspect the present invention provides a dishwasher including any of the dishwasher waterway systems of the third aspect of the present invention.

The spray head provided by the technical scheme can spray water at different angles and in multiple aspects; the spray head assembly consisting of the plurality of spray heads can realize water outlet at different heights and different angles, so that the cleaning effect is greatly improved; the provided water path system of the dish washing machine enlarges the effective cleaning range and can clean the area which cannot be washed by the original spray arm or has weak washing capability; the dish washing machine can efficiently wash the whole area without dead angles, and has good washing effect.

Drawings

FIG. 1 is a schematic view of a spray head configuration having a transverse slotted spray orifice;

FIG. 2 is a structural view of a transverse slotted spout;

FIG. 3 is a front projection view of any of the slots of FIG. 2;

FIG. 4 is a schematic view of a sprinkler head having a vertically slotted spout;

FIG. 5 is a schematic view of a showerhead having a through hole array orifice;

FIG. 6 is a schematic structural view of one embodiment of a showerhead assembly;

FIG. 7 is a schematic layout of one embodiment of a showerhead assembly;

FIG. 8 is an exploded view of the water circuit system of the dishwasher;

fig. 9 is a schematic view of the waterway inlet and outlet structure of the water pump.

Description of the reference numerals

1 upper spray arm 2 upper waterway

3 shower nozzle 4 way of launching

5 Water pump 6 bottom shell

7 lower spray arm 8 lower bowl basket

9 upper bowl basket 31 spherical shell

32 cylindrical shell 311 slots

51 upper outlet a 52 upper outlet b

53 rear outlet 54 inlet

301 first spray head 302 second spray head

303 third showerhead 304 fourth showerhead

Detailed Description

In the present invention, unless otherwise specified, the positional or orientational relationships indicated by the terms of orientation such as "up, down, left, right, horizontal, vertical" are based on the positional or orientational relationships shown in the drawings or the positional or orientational relationships of the described devices or components in the actual use state.

Fig. 1 and 2 show an embodiment of the spray head 3, which is composed of a spherical shell 31 and a cylindrical shell 32, wherein the spherical shell 31 is provided with 6 transversely arranged slots 311 as spray openings. The forward projection of the slits is a rectangle with the length a and the width b as shown in fig. 3, the short sides of the rectangle obtained by projection of each slit are on a straight line, namely, the two sides of each slit are flush, wherein the uppermost slit 311 is at the top of the spherical shell 31, the lowermost slit 311 is on a horizontal section passing through the spherical center of the spherical shell 31, the other slits 311 are uniformly distributed between the two slits, namely, equidistantly distributed, the central angle formed by the two ends of the slit 311 and the spherical center of the spherical shell 31 is 105 degrees, and the width of the slit 311 is 1 mm.

Fig. 4 shows another embodiment of the spray head of the present invention, in which the slit-shaped nozzles are vertically arranged.

The nozzle of the present invention can also use the through hole array as shown in fig. 5 as a nozzle, and can also achieve a good cleaning effect.

FIG. 6 shows an embodiment of a spray head assembly for a dishwasher according to the present invention, including four spray heads 3 enclosing a rectangle; the nozzles of each spray head 3 are located on the surface of the spray head, facing the side of the geometrical centre of the rectangle.

As shown in FIG. 7, in one embodiment of the spray head assembly, four spray heads are positioned at four corners of the dishwasher chamber, and a line connecting the center of the spherical shell 31 of the first spray head 301 and the center of the spherical shell 31 of the second spray head 302 is a first horizontal line, and a line connecting the center of the spherical shell 31 of the third spray head 303 and the center of the spherical shell 31 of the fourth spray head 304 is a second horizontal line; wherein the included angle theta 1 between the right side of the long side of the slit 311 of the first nozzle 301 and the first horizontal line is 20 degrees; an included angle theta 2 between the right side of the long side of the slit 311 of the second nozzle 302 and the first horizontal line is 60 degrees; an included angle theta 3 between the right side of the long side of the slit 311 of the third nozzle 303 and the second horizontal line is 30 degrees; the angle θ 4 between the right side of the long side of the slit 311 of the fourth nozzle 304 and the second horizontal line is 60 °, and the four nozzles have the best cleaning effect at the best arrangement angle.

In operation, water flows from the lower part of the cylindrical shell 32, flows through the inside of the cylindrical shell 32, enters the spherical shell 31, and is sprayed out from the slits 311 on the wall of the spherical shell 31. The four spray heads spray water into the dish washer from different directions, so that the dish washer has the advantages of large spray angle and wide spray range, and can realize effective cleaning in a larger range.

As shown in fig. 8 to 9, an embodiment of a waterway system of a dishwasher of the present invention includes a water pump 5, a lower waterway 4, a lower spray arm 7, an upper waterway 2, an upper spray arm 1, and a spray head assembly provided in the present invention. The water pump 5 is fixed at the lower part of the bottom shell 6 and comprises an upper outlet a 51, an upper outlet b 52, a rear outlet 53 and a water inlet 54; the upper outlet a 51 is connected to the water inlet of the lower spray arm 7, the upper outlet b 52 is connected to the water inlet of the lower water passage 4, and the rear outlet 53 is connected to the upper water passage 2. The lower spray arm 7 is located above the bottom shell 6. The lower waterway 4 is located at the lower part of the bottom shell 6 and has a water inlet and four water outlets, the four water outlets are respectively connected with the water inlets at the lower ends of the cylindrical shells 32 of the four nozzles 3, and the nozzles 3 are located above the bottom shell 6. The upper waterway 2 bypasses the lower bowl basket 8 from the rear and is connected with the upper spray arm 1, and the upper spray arm 1 is positioned below the upper bowl basket 9.

When the water pump works, water flow enters the water pump from the water inlet 54 of the water pump 5, and is divided into three paths to flow out after being pressurized. One path of the cleaning solution flows out from the upper outlet a 51, enters the lower spray arm 7, is sprayed to the lower bowl basket 8 through a nozzle of the lower spray arm 7, and cleans the tableware in the lower bowl basket 8; the other path flows out from an upper outlet b 52, enters a lower waterway 4, enters water inlets of four spray heads 3 through four outlets of the lower waterway 4 respectively, is sprayed and cleaned in multiple directions, and the third path is injected into an upper waterway 2 through a rear outlet 53, enters an upper spray arm 1 through the upper waterway 2, is sprayed to an upper bowl basket 9 through a nozzle of the upper spray arm 1, and cleans tableware in the upper bowl basket 9.

According to the waterway system, under the traditional spray cleaning mode of the upper spray arm and the lower spray arm, a plurality of spray heads are additionally arranged for carrying out multidirectional additional cleaning, so that the cleaning effect is greatly improved.

The dish washer using the waterway system as shown in fig. 8-9 can wash tableware in all directions without dead angles, effectively improves the washing performance of the dish washer, and has low manufacturing cost, low failure rate and good stability.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the present invention, simple modifications of the technical solution of the present invention, such as simple changes of the nozzle form, increase and decrease of the number of nozzles, changes of the arrangement position, and various specific technical features combined in any suitable way, should also be considered as disclosed in the present invention, and all fall within the protection scope of the present invention.

Claims

1. Spray head for a dishwasher, characterized by comprising a spherical housing (31) and a cylindrical housing (32);

the spherical shell (31) and the cylindrical shell (32) are hollow and communicated with each other;

at least three strip-shaped nozzles are arranged on the spherical shell (31), and the nozzles are strip seams (311) which are arranged transversely or vertically;

the forward projection of each slit (311) is the same rectangle, and the length a of the rectangle and the radius R of the spherical shell (31) have the following relationship: 2R is more than a and is more than or equal to R.

2. Spray head for a dishwasher according to claim 1, characterized in that the radius R of the spherical housing (31) is greater than the radius R of the cylindrical housing (32);

the radius r of the cylindrical shell (32) is 5-25mm, and the height h of the cylindrical shell (32) is more than r.

3. Spray head for a dishwasher according to claim 1, characterized in that the number of slits (311) is 3-8.

4. A showerhead for a dishwasher according to claim 3, characterized in that the width b of the rectangle is 0.5-1.5 mm;

the short sides of the rectangles on the same side are on the same straight line;

the slots (311) are evenly distributed on the spherical shell (31).

5. Nozzle head for a dishwasher according to claim 4, characterized in that the arc of the long side on which each slot (311) is located subtends an angle of 105 ° at its centre.

6. Spray head assembly for a dishwasher, characterized by comprising a plurality of spray heads (3) according to claims 3-5 arranged in a distributed manner;

the nozzles of a plurality of spray heads (3) face to the geometric center of the cavity of the dishwasher.

7. Spray head assembly for a dishwasher according to claim 6, characterized in that the number of spray heads (3) is 3-5.

8. Spray head assembly for a dishwasher according to claim 7, wherein the number of spray heads (3) is four, each spray head (3) being located at each of the four corners of the dishwasher chamber;

wherein, the connecting line between the spherical center of the spherical shell (31) of the first spray head (301) and the spherical center of the spherical shell (31) of the second spray head (302) is a first horizontal line, and the connecting line between the spherical center of the spherical shell (31) of the third spray head (303) and the spherical center of the spherical shell (31) of the fourth spray head (304) is a second horizontal line;

an included angle theta 1 between the right side of the long side of the upper seam (311) of the first spray head (301) and the first horizontal line is 15-60 degrees;

an included angle theta 2 between the right side of the long side of the upper strip seam (311) of the second spray head (302) and the first horizontal line is 20-75 degrees;

an included angle theta 3 between the right side of the long side of the upper strip seam (311) of the third spray head (303) and the second horizontal line is 15-90 degrees;

an included angle theta 4 between the right side of the long side of the upper strip seam (311) of the fourth spray head (304) and the second horizontal line is 15-90 degrees.

9. The spray head assembly for a dishwasher of claim 8 wherein θ 1 is 20 °; θ 2 is 60 °; said θ 3 is 30 °; the θ 4 is 60 °.

10. A dishwasher waterway system comprising a water pump (5), a lower waterway (4), a lower spray arm (7), an upper waterway (2), an upper spray arm (1), and a spray head assembly of any of claims 6-9;

the water pump (5) is fixed at the lower part of the bottom shell (6), the water pump (5) comprises an upper outlet a (51), an upper outlet b (52), a rear outlet (53) and a water inlet (54), the upper outlet a (51) is connected with the lower spray arm (7), the upper outlet b (52) is connected with the inlet of the lower waterway (4), and the rear outlet (53) is connected with the upper waterway (2);

the lower waterway (4) is positioned at the lower part of the bottom shell (6), the lower waterway (4) is provided with a plurality of inlets and a plurality of outlets, each outlet is respectively connected with the inlets of a plurality of sprayers of the sprayer assembly in a one-to-one correspondence manner, and the sprayer assembly is arranged above the bottom shell (6);

go up water route (2) and be located the rear of bowl basket (8) down, go up water route (2) with go up spray arm (1) and connect, go up spray arm (1) and be located the below of bowl basket (9), spray arm (7) are located down the top of drain pan (6).

11. The waterway system of the dishwasher of claim 10, wherein the lower waterway (4) has one inlet and four outlets, the number of the spray heads of the spray head assembly is four, and each outlet is connected with the inlet of the four spray heads in a one-to-one correspondence manner.

12. A dishwasher, comprising a dishwasher waterway system as in claim 10 or 11.