CN110584559A - Dish washing machine - Google Patents

Abstract

The invention discloses a dishwasher, which comprises: a washing chamber, which is used to accommodate tableware; a washing pump, which is used to transport the washing water in the washing pump chamber into the washing chamber; a heating chamber, which surrounds the washing chamber. The outer side of the washing pump chamber and communicates with the washing pump chamber circumferentially for heating the washing water flowing through; the filter chamber surrounds the outer side of the heating chamber and communicates with the heating chamber circumferentially . The ring-shaped heating chamber and the filtering chamber are provided to facilitate the return of washing water during the washing process, and all the returned washing water passes through the heating chamber, which is beneficial to increase the heating efficiency. An annular return flow path is formed from the filter chamber to the washing pump chamber; the washing water entering the washing pump chamber must flow through the heating chamber, so that the washing water reaching the washing pump chamber in the heated state is heated, which is conducive to improving the heating efficiency.

Description

a dishwasher

technical field

The invention belongs to the technical field of dishwashers, and in particular relates to a dishwasher.

Background technique

Dishwashers are equipment for automatically cleaning bowls, chopsticks, plates, plates, knives, forks and other tableware. According to the structure, they can be divided into two categories: box type and conveyor type. They are often used in homes, restaurants, hotels, canteens of government agencies, etc. , Reduce labor intensity, improve work efficiency, and improve cleanliness.

The dishwasher is usually mainly composed of a washing device, a washing chamber and a control device. The main function of the washing device is to drive the washing pump through the motor to pressurize the water into the washing chamber, and send it to the heating chamber during the water delivery process or to the heating chamber through the heater. The cavity is heated; the impeller type dishwasher, the impeller is connected with the shaft of the motor. When it is working, the motor drives the impeller to rotate at a high speed, and the water in the washing pump cavity is splashed upwards into the washing cavity with the impeller, so as to achieve Cleaning of tableware; when the nozzle-type dishwasher is working, the washing device pours water into a heating chamber at the bottom, where the heater heats the water to a temperature of about 54 degrees Celsius to 60 degrees Celsius, and then the pump pushes the water into the The water nozzle is sprayed to the dishes in the washing chamber, and the pressure nozzle is used to spray water in different directions to fully wash the tableware in the washing chamber.

At present, the dishwashers produced and sold on the market have a relatively large overall heater, which is located in the washing chamber or heating chamber, and the structure of the washing pump and motor is bulky, occupying a large working space; in order to save space, there are The technical scheme of integrating the heating function in the washing pump is proposed, but the result often destroys the original channel structure, resulting in additional hydraulic loss. Specifically, the integrated heated washing pump in existing dishwashers usually adopts a heating tube heating method. Due to the existence of the washing pump heating tube, the size of the pump chamber is increased, which seriously affects the overall pump. At the same time, due to the limited heat exchange area of the heating tube, it is very difficult to increase the heating power in a limited space.

The above information disclosed in this background technology is only for enhancement of understanding of the background technology of this application, and therefore it may include information that does not constitute the prior art that is already known to a person of ordinary skill in the art.

Contents of the invention

In view of the above-mentioned problems in the prior art, the present invention proposes a dishwasher, which is equipped with a heating chamber and a filter chamber, which is beneficial to the backflow of washing water during the washing process, and all the backflowing washing water passes through the heating chamber, thereby effectively Helps increase heating efficiency.

In order to achieve the above-mentioned purpose of the invention, the present invention adopts the following technical solutions to achieve:

A dishwasher, characterized in that it comprises:

a washing chamber for holding tableware;

a washing pump, which is used to transport the washing water in the washing pump chamber to the washing chamber;

a heating chamber, which surrounds the outside of the washing pump chamber and communicates with the washing pump chamber in a circumferential direction, for heating the washing water flowing through;

The filter cavity surrounds the outside of the heating cavity and communicates with the heating cavity in a circumferential direction.

Further, a flat filter screen for filtering washing water is provided between the filter chamber and the washing chamber, and an isolation plate is provided between the heating chamber and the washing chamber.

Further, the isolation board is set low on the outside and high on the inside.

Further, a plurality of communication passages arranged at intervals in the circumferential direction are provided between the filter cavity and the heating cavity.

Further, a heating plate is provided on the bottom surface of the heating chamber, and the heating plate has an annular heating body.

Further, the heating body is set high on the inside and low on the outside.

Further, the included angle between the isolation plate and the horizontal plane is larger than the included angle between the heating body and the horizontal plane.

Further, an inner extension extending horizontally inward is provided along the inner side of the isolation plate, and the inner extension is assembled to the washing pump.

Further, an inclined transition portion extending upward and inward and a connecting portion extending inward along the inclined transition portion are provided on the inner side of the bottom surface of the filter chamber, and a heating plate is provided on the bottom surface of the heating chamber. The outer side of the heating plate is sealed and fixed to the connecting portion.

Further, a plurality of radially arranged spacer ribs extending upward are provided on the inclined transition portion and the connecting portion, and the spacer ribs are used to form the communication channel at intervals.

Further, the upper end surface of the spacer rib has the same inclination angle as that of the isolation plate, and the spacer rib is used to support the isolation plate.

Further, a water outlet is provided on the bottom surface of the washing chamber, and the water outlet is communicated with the drainage pump chamber, and a water flow tank connected to the water outlet is provided on the bottom surface of the washing chamber, and the water flow groove The depth gradually increases towards the water outlet.

Further, the outer side of the isolation rib extends toward the washing chamber to form an extended guide part.

Further, the planar filter screen and the isolation plate are an integral isolation filter structure.

Compared with the prior art, the advantages and positive effects of the present invention are: the heating chamber and the filter chamber are arranged in an annular shape, which is beneficial to the backflow of the washing water during the washing process, and the returning washing water passes through the heating chamber, which is beneficial to Increase heating efficiency. During the washing process of the dishwasher, the washing impeller rotates so that the washing water in the washing pump chamber is pumped into the washing chamber by the washing impeller, and then the washing water flows into the filter chamber. Under the action of the washing pump, the washing water in the filter chamber, After flowing through the heating chamber, it reaches the washing pump chamber to form a washing water path; among them, a circular return water path is formed from the filter chamber to the washing pump chamber; the washing water entering the washing pump chamber must flow through the heating chamber, so that it can reach the washing water in the heated state. The washing water in the pump cavity is all heated, which is beneficial to improve the heating efficiency.

Other characteristics and advantages of the present invention will become clearer after reading the detailed description of the present invention in conjunction with the accompanying drawings.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the embodiments. Obviously, the accompanying drawings in the following description are some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

Fig. 1 is a schematic structural view of an embodiment of the dishwasher proposed by the present invention;

Fig. 2 is a schematic diagram of the top view of Fig. 1 after assembly;

Fig. 3 is a schematic diagram of a cross-sectional structure along A-A in Fig. 2;

Figure 4 is an enlarged schematic view of part of the structure in Figure 3;

Fig. 5 is a schematic diagram of an enlarged structure at the heating plate in Fig. 4;

Fig. 6 is a three-dimensional structural schematic diagram of a cross-sectional view after assembly in Fig. 1;

Figure 7 is an enlarged schematic view of part of the structure in Figure 6;

Fig. 8 is a schematic diagram of an enlarged structure at the heating plate in Fig. 7;

Fig. 9 is a partial enlarged structural schematic diagram of the base in Fig. 1;

Fig. 10 is a schematic diagram of an enlarged structure of area B in Fig. 9;

Fig. 11 is a schematic diagram of the enlarged structure of the heating plate in Fig. 1;

Fig. 12 is a schematic diagram of the enlarged structure of the cross-sectional part of Fig. 11;

Fig. 13 is a schematic diagram of an enlarged structure of the motor in Fig. 1;

Fig. 14 is a schematic diagram of a partially enlarged structure in Fig. 13;

Fig. 15 is a schematic diagram of the enlarged structure of the assembled fixing ring in Fig. 1;

Fig. 16 is a schematic diagram of an enlarged structure of area C in Fig. 15;

Fig. 17 is a schematic diagram of an enlarged structure of the assembly bracket in Fig. 1;

Fig. 18 is a schematic diagram of an enlarged structure of the isolation filter structure in Fig. 1;

Fig. 19 is a schematic diagram of the front view of Fig. 18;

Fig. 20 is a schematic diagram of the enlarged structure of the first gasket in Fig. 1;

FIG. 21 is a schematic diagram showing an enlarged structure of the cross section of FIG. 20 .

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right" etc. is based on the positional relationship shown in the drawings, so as to be close to the axis of the inner cylinder The direction of the direction is "inside", otherwise it is "outside". The terminology is only used to describe the present invention and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance; features defined with "first" and "second" may express or One or more of these features are implicitly included. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Referring to Fig. 1-Fig. 21, it is an embodiment of the dishwasher proposed by the present invention. As shown in Fig. 3-Fig. Chamber 23, washing chamber 100, filter chamber 300, heating chamber 200 and washing pump chamber 23 form the washing waterway, and washing pump 20 is also provided on the washing waterway, and washing pump 20 has washing impeller 21 fixed on the upper end of rotating shaft 12, fixed The washing pump support 22 on the motor housing 11, the washing pump chamber 23, and the lower end of the washing impeller 21 are located in the washing pump chamber 23; The heating chamber 200 surrounds the outside of the washing pump chamber 23, and the heating chamber 200 communicates with the washing pump chamber 23 in a circumferential direction, and is used to heat the washing water flowing through; the filtering chamber 300 surrounds the outside of the heating chamber 200, and the filtering chamber 300 is connected with the heating The cavity 200 communicates in the circumferential direction, and the filtering cavity 300 and the heating cavity 200 are both annular cavities.

By setting the set heating chamber 200 and the filter chamber 300, and communicating in the circumferential direction, it is beneficial to the backflow of the washing water sprayed from the washing pump chamber 23 to the washing chamber 100 during the washing process, and the returning washing water passes through the heating chamber. Reaching the washing pump cavity 23 is beneficial to increase the heating efficiency. During the washing process of the dishwasher, the washing impeller 21 rotates so that the washing water in the washing pump chamber 23 is pumped into the washing chamber 100 by the washing impeller 21, and then the washing water flows into the filter chamber 300, and the washing water is filtered under the action of the washing pump 20. The washing water in the chamber 300 flows from the inner diameter side of the filter chamber 300 to the outer diameter side of the heating chamber 200 in the circumferential direction at the same time, and then flows from the inner diameter side of the heating chamber 200 to the washing pump chamber 23 in the circumferential direction at the same time, forming a washing water path; Wherein, an annular return flow path is formed from the filter chamber 300 to the washing pump chamber 23, and the washing water entering the washing pump chamber 23 must flow through the heating chamber 200, so that the washing water reaching the washing pump chamber 23 in the heated state is all heated, It is beneficial to improve the heating efficiency.

Referring to Fig. 3, Fig. 4 and shown in Fig. 18, between the filter chamber 300 and the washing chamber 100, a plane filter 41 for filtering the washing water is provided, and the filter chamber 300 is located below the washing chamber 100, which is beneficial to washing chamber 100. The washing water flows into the filter chamber 300 under the action of gravity; an isolation plate 42 is provided between the heating chamber 200 and the washing chamber 100, and the isolation plate 42 is used for isolating the heating chamber 200 and the washing chamber 100 in the up and down direction. Below the washing chamber 100; so that the washing water in the washing chamber 100 cannot directly flow into the heating chamber 200, the washing water in the washing chamber 100 flows into the filter chamber 300, and the washing water in the filter chamber 300 flows into the heating chamber 200 from the circumference ; Ensure that the washing water returned from the washing chamber 100 is filtered and then reach the filter chamber 300 , and ensure that the returning washing water passes through the heating chamber 200 .

The plane filter screen 41 is set horizontally, and the separating plate 42 is set low on the outside and high on the inside. Since the return flow path from the filter chamber 300 to the washing pump chamber 23 through the heating chamber 200 is a ring, that is, it flows inward from the outside of the circumference. The size of the circumferential direction in the flow direction is getting smaller and smaller, and the isolation plate 42 is set to be low on the outside and high on the inside. The height of the isolation plate 42 increases in the direction close to the center, that is, the isolation plate 42 is radially inward. The increased height of the heating chamber 200 is beneficial to ensure that the volume of the heating chamber 200 does not change much in the radial direction, and is conducive to the smooth flow of the water flow; at the same time, since the isolation plate 42 is set low on the outside and high on the inside, it will spray into the washing chamber 100 and then fall to the isolation plate 42. The washing water of the plate 42 can quickly flow to the flat filter screen 41 along the inclined surface, which is conducive to the return of the washing water in the washing chamber 100 to the filter chamber 300; structural strength.

For the arrangement of the heating components of the heating chamber 200, it is preferable to set the heating plate 30 on the bottom surface of the heating chamber 200. The heating plate 30 has a ring-shaped heating body 31, and the heating body 31 is set high on the inside and low on the outside. The washing water flows through the heating body 31, and the heating plate 30 is sleeved on the outside of the motor housing 11, so that the heating plate 30 is used as a part of the washing water circuit, which is beneficial to the simplification of the structure, and avoids setting in the water circuit, which will cause serious damage to the washing water. obstruction of water flow. The heating body 31 is set to be high on the inside and low on the outside. When the washing water flows radially inward from the outside of the heating body 31, it needs to climb up a slope, which makes it more difficult for the washing water to flow back, causing the water to flow through the heating body 31. The speed slows down, so that the time for running water to flow through the heating body 31 increases, which is beneficial to improve the heating efficiency of the heating plate 30 for the washing water; and the washing water will not remain at the heating body 31.

Since the isolation plate 42 and the heating body 31 are both inclined to be high inside and low outside, preferably, the angle between the isolation plate 42 and the horizontal plane is greater than the angle between the heating body 31 and the horizontal plane, forming a radially inward In the direction, the distance between the heating body 31 and the isolation plate 42 is increased, that is, the height of the heating chamber 200 is increased in the radially inward direction, which is beneficial to smooth water flow. The inclination of the heating body 31 is too large, so that the climbing speed of the water flow through the heating plate 30 is too slow, so that the washing efficiency is reduced; but the inclination angle of the heating body 31 is too small to improve the heating efficiency; The included angle between the main body 31 and the horizontal plane is 3°-10°, more preferably, the included angle between the heating body 31 and the horizontal plane is 5°-6°. Preferably, the angle between the isolation plate 4 and the horizontal plane is 10°-25°, and more preferably, the angle between the isolation plate 4 and the horizontal plane is 15°-20°.

An inner extension 43 extending horizontally inwards is provided along the inner side of the isolation plate 42 , and the inner extension 43 is assembled on the washing pump bracket 22 of the washing pump 20 . The motor 10 that drives the washing pump 20 to rotate is set, the motor 10 has a motor housing 11, a stator fixed on the motor housing 11, a rotatably arranged rotor, a rotating shaft 12 fixedly arranged on the rotor, the motor housing 11 and the rotating shaft 12 Coaxially arranged, the rotating shaft 12 is vertically arranged; the upper end of the rotating shaft 12 is fixed with a washing impeller 21, and the lower end of the rotating shaft 12 is fixed with a drainage impeller. The washing pump bracket 22 is fixed on the motor casing 11 .

Referring to Fig. 5, Fig. 9 and Fig. 10, the inner side of the bottom surface of the filter cavity 300 is provided with an upwardly and inwardly extending inclined transition portion 93, and a connecting portion 94 bent inward along the inclined transition portion 93, and the heating plate 30 The outer side is sealed and fixed with the connecting portion 94 . By setting the inclined transition part 93, the heating chamber 200 is higher than the filter chamber 300, that is, the water flow from the inner diameter side of the filter chamber 300 needs to flow upwards through the inclined transition part 93 before reaching the filter chamber 300, that is, only when the washing pump 20, the washing water in the filter chamber 300 will flow inward into the heating chamber 200 in the starting state. In order to facilitate the washing water in the filter cavity 300 to flow radially toward the heating cavity 200 in the circumferential direction at the same time, a plurality of communication flow channels arranged at intervals in the circumferential direction are arranged between the filter cavity 300 and the heating cavity 200, and the washing water in the filter cavity 300 Water flows into the heating chamber 200 along a plurality of communication channels, which is beneficial to the radial flow of the water flow. Specifically, on the inclined transition part 93 and the connecting part 94, there are a plurality of spacer ribs 95 extending upwards, the spacer ribs 95 are arranged radially, and the plurality of spacer ribs 95 are arranged at intervals in the circumferential direction, and the spacer ribs 95 are used to form a connection at intervals. The flow channel, the communication flow channel is surrounded by two adjacent isolation ribs 95, the isolation plate at the top, and the lower inclined transition portion 93 and connecting portion 94; the outer side of the isolation rib 95 extends toward the washing chamber 300 to form an extension guide. The flow portion 951 is used for guiding the water in the filter cavity 300 when it flows to the communication channel. The upper end surface of the spacer rib 95 has the same inclination angle as that of the isolation plate 42 , and the spacer rib 95 is used to support the isolation plate 42 .

A water outlet is provided on the bottom surface of the washing chamber 300, a cup-shaped filter screen 80 is arranged at the water outlet, the water outlet communicates with the drain pump chamber 19, and a water flow tank 301 connected to the water outlet is provided on the bottom surface of the washing chamber 300. The depth of the water tank 301 gradually increases toward the water outlet; it is beneficial for the washing water in the water tank 301 to flow toward the water outlet when draining, so as to prevent the washing water from remaining in the washing chamber 300 .

Preferably, the planar filter 41 and the isolation plate 42 are integrated to form an isolation filter structure 40, and the isolation filter structure 40 is covered on the middle part of the bottom wall 90 of the inner container. Only the base of the inner container is shown in FIG. 1 Part, the space on the upper side of the isolation filter structure 40 in the inner tank is the washing cavity 100, the space between the isolation filter structure 40 and the heating plate 30 is the heating cavity 200, and the space between the isolation filter structure 40 and the bottom wall 90 is the filter cavity. Cavity 300.

Referring to Figures 11-12, for the structure of the heating plate 30, the heating plate 30 has a heating body 31 arranged obliquely, an inwardly bent portion 32 extending downward along the inner side of the heating body 31, and an inward bending portion 32 along the inner side of the heating body 31. The outer side of 31 bends downwards and outwards to extend the outer curved part 33, wherein, the inner curved part 32, the heating body 31 and the outer curved part 33 surround and form a concave cavity 400, and the heating component 34 is located in the concave cavity 400; by forming the concave cavity Cavity 400 forms the setting space of heating member 34; For example, when the joints on the inside or outside of heating plate 30 seep water, the leaked water droplets will not flow upwards into the cavity 400 along the inner bend 32 or outer bend 33, which is beneficial Protect the safety of the heating element 34 . Preferably, the heating plate 30 is made of metal, and the heating member 34 is made of a heating film attached to the lower end surface of the heating body 31, which is beneficial to heat transfer.

Referring to Fig. 5 and Fig. 8, the assembly of the heating body 31 is illustrated, the inner side of the heating pan 30 is sealed and fixed on the motor casing 11, the outer side of the heating pan 30 is sealed and fixed on the bottom wall 90 of the inner container, and the bottom wall 90 There is an assembly hole 91 matching the outside of the heating plate 30 on the top, the inside of the connecting portion 94 is the assembly hole 91, and the outer curved portion 33 is sealed and fixed with the assembly hole 91; the motor casing 11 has an annular upper end 111, the upper end The outside of 111 is flush with the inside of the heating body 31, which is conducive to the radially inward flow of water from the heating body 31 to the upper end 111; it is preferable to set the upper end 111 to be set low on the outside and high on the inside or set horizontally. Keep the water flow continuing to climb in the radial return direction, or flow inward horizontally; preferably, the angle between the upper end 111 and the horizontal plane is smaller than the angle between the heating body 31 and the horizontal plane, which is beneficial for the water flow to reach the upper end 111 Backflow radially inward. The heating plate 30 and the upper end 111 of the motor housing 11 are components of the bottom wall 90 .

Referring to Fig. 12, for the fixing between the inner bending part 32 and the motor housing 11, in order to arrange the outer side of the upper end part 111 flush with the inner side of the heating body 31, the inner bending part 32 is set to have a downward direction along the inner side of the heating body 31. The extended inner part 321 and the inner edge 322 bent and extended inward along the lower end of the inner extension 321, wherein the inner edge 322 is located below the upper end 111; the heating plate 30 is installed from the bottom up, and the inner edge 322 is pressed Immediately below the upper end 111 . Preferably, the inner edge 322 is arranged horizontally, which is beneficial to the stamping and forming of the inner curved portion 32, and facilitates the vertical pressing force on the inner edge 322 after being assembled and fixed, and is beneficial to the firmness after fixing.

Referring to Fig. 8, in order to facilitate the operation of fixing the inner curved part 32 and the motor casing 11, the washing device also includes an assembly fixing ring 60 for fixing the heating plate 30 and the motor casing 11, and the assembly fixing ring 60 is engaged by rotating Fixed on the motor casing 10 , the inner fitting edge 322 is located between the upper end 111 and the fitting fixing ring 60 . The heating plate 30 is fixed on the heating plate 30 by detachably fixing the assembling fixing ring 60 and the motor housing 11 , and pressing the inner edge 322 between the assembling fixing ring 60 and the upper end 111 . Preferably, the assembly fixing ring 60 is installed to the motor housing 11 by rotation, or is disassembled from the motor housing 11, which is conducive to the convenience and speed of disassembly and assembly of the assembly fixing ring 60. Quick installation or removal of the shell 11.

Referring to Fig. 1, Fig. 5 and Fig. 8, the assembly and fixing structure between the assembly fixing ring 60 and the motor casing 11 is illustrated. The upper end 111 is provided with an outer cylinder 112 extending downward, and the assembly fixing ring 60 is set On the outside of the outer cylinder 112; on the circumferential direction of the outer cylinder 112, a plurality of first outer ribs 113 are arranged at intervals, and on the assembly fixing ring 60, a plurality of first inner ribs 61 are arranged at intervals; After the ring 60 is snapped and fixed, the first inner rib 61 is located above the first outer rib 113; so that the assembly fixing ring 60 is fixed on the motor casing 11, and the inner edge 322 is squeezed between the assembly fixing ring 60 and the upper end Between Section 111. Preferably, the number of the first outer ribs 113 provided on the outer cylinder 112 is the same as the number of the first inner ribs 61 provided on the fixing ring 60 .

In order to realize the engagement and matching between the first outer rib 113 and the first inner rib 61 , it is necessary to assemble the fixing ring 60 to be fitted on the outer cylinder 112 so that the first inner rib 61 is located on the first outer rib 113 . side; it is necessary to set the distance between the adjacent two first outer ribs 113 to be greater than the size of the first inner rib 61 in the circumferential direction, and the distance between the adjacent two first inner ribs 61 to be greater than the first The size of the outer ribs 113 in the circumferential direction, that is, the assembling fixing ring 60 is fitted to the outer cylinder 112 and moved upwards, and the first inner ribs 61 can pass between two adjacent first outer ribs 113; The gap between two adjacent first inner ribs 61 can also avoid the first outer ribs 113, or the first outer ribs 113 can face each other from between the adjacent two first inner ribs 61. Move down; then rotate and assemble the fixing ring 60 so that the first inner rib 61 is located on the upper side of the first outer rib 113 to complete the fixing between the inner bending portion 32 and the motor housing 11 .

Due to the sealing and fixing between the inner edge 322 and the upper end 111, it mainly depends on the pressing force between the inner edge 322 and the upper end 111; the assembly fixing ring 60 is fixed on the outer cylinder 112 by rotating and engaging, and the first inner retaining rib 61 in the axial direction increases gradually in the direction of the rotation engagement of the assembly fixing ring 60; specifically, the upper end surface of the first inner rib 61 is flush with the upper end surface of the assembly fixing ring 60, and the first inner rib 61 The lower end surface of the lower end face is inclined downwardly in the direction of fitting the fixing ring 60 to rotate and engage. During the rotation process of the assembly fixing ring 60 , the assembly fixing ring 60 gradually presses the inner edge 322 upwards to increase the pressure between the inner edge 322 and the upper end 111 , which is beneficial to increase the sealing performance.

Referring to Fig. 13-Fig. 16, for assembling the fixing ring 60 in place and avoiding loosening, a positioning protrusion 114 is provided on the first outer retaining rib 113, and a positioning protrusion 114 corresponding to the positioning protrusion 114 is provided on the first inner retaining rib 61. The matching positioning groove 62, after the assembly fixing ring 60 is rotated in place, the positioning protrusion 114 is located in the positioning groove 62, avoiding the loosening of the assembly fixing ring 60 after being assembled in place, and preventing the assembly fixing ring 60 from continuing to rotate after being rotated and installed in place , causing damage to the first outer rib 113 and the first inner rib 61 . On the outer cylinder 112, there is a stop rib 115 extending upward along one end of the first outer baffle 113. After the assembly fixing ring 60 is rotated in place, the stop rib 115 stops the first inner baffle 61 in the rotational installation direction. The front side of the front side is used to stop the first inner baffle plate 61 from continuing to move in the installation direction, so as to ensure the stop for the rotation of the assembly fixing ring 60 in place. Preferably, the positioning protrusion 114 is arranged at the rear of the first inner baffle 61 in the direction of rotation installation, and when the first inner baffle 61 starts to cooperate with the first outer rib 113, the first inner baffle 61 is positioned at the front of the direction of rotation installation. The first inner baffle plate 61 is in contact with the first outer rib 113, and then the fixed ring 60 is rotated to increase the number of parts where the first inner baffle plate 61 and the first outer rib 113 are in contact with each other. When it is about to be installed in place, the positioning protrusion 114 is rotated. contact with the first outer retaining rib 113 ; it is beneficial to the rotational engagement assembly of the assembly fixing ring 60 , and reduces the influence of the positioning protrusion 114 on the rotational installation.

Referring to Fig. 5 and Fig. 21, in order to ensure the tightness between the inner bend 32 and the motor housing 11, an annular first gasket is provided between the inner bend 32 and the upper end 111 of the motor housing 11 50; the first gasket 50 has an annular groove-shaped sealing body 51, the sealing body 51 has a radial opening, and the inner edge 322 is located in the sealing body 51, or the sealing body 51 is covered on the outside of the inner edge 322; by setting The built-in edge 322 is located in the sealing body 51, so that there are sealing components above and below the built-in edge 322, which is beneficial to increase the sealing effect. Specifically, the sealing body 51 has a sealing upper side portion 511 located above the built-in edge 322, a sealed lower side portion 512 located below the built-in edge 322, and a connecting portion 513 connecting the sealed upper side portion 511 and the sealed lower side portion 512. The side part 512 is located between the built-in edge 322 and the upper end 111 of the motor housing 11, and the sealed lower side part 512 is located between the built-in edge 322 and the assembly fixing ring 60, and the sealed upper side part 511 and the sealed lower side part 512 are arranged in parallel, The sealing body 51 has two layers of seals arranged in parallel, which are located above and below the inner edge 322 respectively, which is beneficial to increase the sealing performance. At least one upwardly protruding first annular sealing rib 513 is provided on the sealing upper side portion 511 , preferably, two first annular sealing ribs 513 are provided on the sealing upper side portion 511 to increase the sealing performance. At least one second annular sealing rib 514 protruding downward is provided on the sealing lower side portion 512 to increase the sealing performance. The first gasket 50 also has a sealing extension 52 extending outward and upward along the outer side of the sealing upper side portion 511. The sealing extension 52 is located between the inner extension 322 and the motor housing 11, and connects the inner extension 322 to the motor casing. The gaps between the casings 11 are filled to prevent residual water from remaining in the gaps and to play a sealing role.

Referring to Fig. 5, Fig. 10 and Fig. 12, for the fixing of the outer curved portion 33 and the assembly hole 91, the outer curved portion 33 has an extended portion 331 extending downward along the outer side of the heating body 31, and along the lower end of the extended portion 331 The outer edge 332 is bent and extended, and the outer edge 332 is located below the connecting portion 94 , and the heating body 31 extends into the assembly hole 91 . The washing device also includes an assembly bracket 70 for fixing the heating plate 30 to the assembly hole 91. The assembly bracket 70 is fixed at the assembly hole 91; The bracket 70 realizes that the assembly bracket 70 is snapped and fixed on the assembly hole 91, which is beneficial to the convenience of the assembly operation.

Referring to Fig. 5 and shown in Fig. 17, the assembly bracket 70 gives the upward pressing force to the outer curved part 33, and the bottom wall at the assembly hole 91 is provided with a plurality of downwardly extending fixing claws 92, and the assembly bracket 70 There are a plurality of second outer ribs 71 extending outward, and the second outer ribs 71 match and engage with the fixing claws 92 . The fixing claw 92 has a supporting portion 921 extending downward and a claw portion 922 bent inward along the lower end of the supporting portion 921 , and the second outer rib 71 is located above the claw portion 922 . The heating plate 30 is supported by the assembly bracket 70 , moves upward, and by rotating the assembly bracket 70 , the second outer retaining rib 71 is engaged above the fixing claw 92 . A plurality of fixing claws 92 and the second outer ribs 71 are arranged circumferentially. Preferably, the number of fixing claws 92 is the same as the number of the second outer ribs 71 . The assembly bracket 71 is fixed at the assembly hole 91 by rotating engagement, the distance between two adjacent second outer retaining ribs 71 is greater than the size of the fixed claw 91 in the circumferential direction, and the distance between two adjacent fixed claws 92 is The distance is greater than the size of the second outer rib 71 in the circumferential direction; that is, the assembly bracket 70 moves upward, and the second outer rib 71 can pass between two adjacent fixing claws 92; the adjacent two The gap between the second outer retaining ribs 71 can also avoid the fixed claws 92, or the fixed claws 92 can move relatively downward from the adjacent two second outer retaining ribs 71; then rotate the assembly bracket 70 so that The second outer retaining rib 71 is located on the upper side of the retaining claw portion 922 of the fixing claw 92 to complete the fixing between the outer curved portion 33 and the assembly hole 91 .

The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art can still understand the foregoing embodiments. Modifications are made to the technical solutions described, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions claimed in the present invention.

Claims (10)

1. A dishwasher, comprising:

a washing chamber for receiving dishes;

a washing pump for delivering washing water in a washing pump chamber to the washing chamber;

a heating chamber surrounding the outside of the washing pump chamber and circumferentially communicating with the washing pump chamber for heating the washing water flowing therethrough;

the filtering cavity surrounds the outer side of the heating cavity and is circumferentially communicated with the heating cavity.

2. The dishwasher of claim 1, wherein a planar filter screen for filtering washing water is disposed between the filter chamber and the washing chamber, and a separation plate is disposed between the heating chamber and the washing chamber.

3. The dishwasher of claim 2, wherein a plurality of circumferentially spaced communication flow passages are provided between the filter chamber and the heating chamber.

4. The dishwasher of claim 2, wherein a bottom surface of the heating chamber is provided with a heating plate having an annular heating body.

5. The dishwasher of claim 4, wherein the angle between the isolation plate and the horizontal is greater than the angle between the heating body and the horizontal.

6. The dishwasher of claim 2, wherein an inwardly horizontally extending inner extension is provided along an inner side of the partition plate, the inner extension being fitted to the washing pump.

7. The dishwasher of claim 3, wherein an inclined transition portion extending upward and inward and a connection portion extending inward along the inclined transition portion are provided inside the bottom surface of the filter chamber, and a heating plate is provided on the bottom surface of the heating chamber, and the outer side of the heating plate is hermetically fixed to the connection portion.

8. The dishwasher of claim 7, wherein a plurality of radially disposed spacer ribs extending upwardly are provided on the inclined transition portion and the connecting portion, the spacer ribs being spaced to form the communication flow passage.

9. The dishwasher of claim 8, wherein an upper end surface of the spacer rib has the same inclination angle as the separator, the spacer rib supporting the separator.

10. The dishwasher according to claim 1, wherein a drain port is formed on a bottom surface of the washing chamber, the drain port is communicated with the drain pump chamber, a water flowing groove connected with the water passing port is formed on the bottom surface of the washing chamber, and a depth of the water flowing groove is gradually increased in a direction close to the drain port.