Dishwasher

Abstract

The present application discloses a dishwasher, comprising a first water outlet, a first water inlet and a washing pump. The washing pump is provided with a second water inlet and a second water outlet; the second water inlet is communicated with the first water outlet to receive water flow; the second water outlet is communicated with the first water inlet to discharge the water flow; the axial direction of the second water inlet is arranged in the same direction as the axial direction of the first water outlet; a first plane is defined to be perpendicular to the axial direction of the second water inlet and the axial direction of the first water outlet; one of the projection of the second water inlet towards the first plane and the projection of the first water outlet towards the first plane is located in the range of the other; the axial direction of the second water outlet is arranged in the same direction as the axial direction of the first water inlet; a second plane is defined to be perpendicular to the axial direction of the second water outlet and the axial direction of the first water inlet; and one of the projection of the second water outlet towards the second plane and the projection of the first water inlet towards the second plane is located in the range of the other. By means of the arrangement, the reversing frequency of circulating water flow can be reduced, and hydraulic loss can be reduced.

Description

dishwasher

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on January 15, 2024, with application number 202420103146.8 and application name “DISHWASHER”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of dishwashing equipment, and in particular to a dishwasher. Background Art

[0004] A dishwasher cleans dishes by circulating, pumping, and delivering water. Specifically, the dishwasher has a washing pump that sucks water from the dishwasher and delivers it to a spray arm. The spray arm sprays water toward the dishes to clean them. The water then falls back and continues to be pumped by the washing pump. In related technologies, the water needs to undergo multiple reversals during the process of the washing pump pumping and delivering water, resulting in hydraulic losses.

[0005] Application Contents

[0006] The present application aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the present application proposes a dishwasher.

[0007] To achieve the above objectives, the present application discloses a dishwasher, comprising:

[0008] First water outlet;

[0009] a first water inlet; and

[0010] a washing pump having a second water inlet and a second water outlet, wherein the second water inlet is connected to the first water outlet to receive water, and the second water outlet is connected to the first water inlet to discharge water;

[0011] The axial direction of the second water inlet and the axial direction of the first water outlet are arranged in the same direction, a first plane is defined that is perpendicular to the axial direction of the second water inlet and the axial direction of the first water outlet, and one of the projection of the second water inlet onto the first plane and the projection of the first water outlet onto the first plane is located within the range of the other;

[0012] The axial direction of the second water outlet and the axial direction of the first water inlet are arranged in the same direction, and a second plane is defined to be perpendicular to the axial direction of the second water outlet and the axial direction of the first water inlet, and one of the projection of the second water outlet toward the second plane and the projection of the first water inlet toward the second plane is located within the range of the other.

[0013] In some embodiments of the present application, a projection of the second water inlet toward the first plane is larger than a projection of the first water outlet toward the first plane.

[0014] In some embodiments of the present application, a projection of the second water outlet toward the second plane is smaller than a projection of the first water inlet toward the second plane.

[0015] In some embodiments of the present application, a projected outline of the second water inlet and a projected outline of the first water outlet are at a preset distance from each other.

[0016] In some embodiments of the present application, a projected outline of the second water outlet and a projected outline of the first water inlet are at a preset distance from each other.

[0017] In some embodiments of the present application, the second water inlet and the first water outlet are coaxially arranged.

[0018] In some embodiments of the present application, the second water outlet and the first water inlet are coaxially arranged.

[0019] In some embodiments of the present application, the dishwasher further includes a first straight pipe, wherein the first straight pipe connects the second water inlet and the first water outlet to communicate with each other.

[0020] In some embodiments of the present application, the dishwasher further includes a second straight pipe, which connects the second water outlet and the first water inlet to communicate with each other.

[0021] In some embodiments of the present application, the washing pump includes a pump casing and a centrifugal impeller, the pump casing is equally divided into a first half and a second half along the axial direction of the centrifugal impeller, and the second water inlet and the second water outlet are arranged in the first half.

[0022] In some embodiments of the present application, the washing pump further includes a motor, and the motor is installed on the second half.

[0023] In some embodiments of the present application, the second water inlet and the centrifugal impeller are coaxially arranged.

[0024] In some embodiments of the present application, the first half has an annular flow channel, and the annular flow channel surrounds the second water inlet.

[0025] In some embodiments of the present application, the second water outlet is formed at the end of the annular flow channel.

[0026] In some embodiments of the present application, the dishwasher includes a water cup, and the water cup is provided with the first water outlet and the first water inlet.

[0027] In some embodiments of the present application, the water cup is provided with a water diversion valve, and the water diversion valve is provided with the first water inlet.

[0028] In some embodiments of the present application, the axial direction of the first water outlet extends in the transverse direction.

[0029] In some embodiments of the present application, the axial direction of the first water inlet extends vertically.

[0030] In some embodiments of the present application, the first water inlet is located above the first water outlet.

[0031] The technical solution of the present application is to place the projection of the second water inlet and the projection of the first water outlet within the range of the other, and to place the projection of the second water outlet and the projection of the first water inlet within the range of the other, so that the second water inlet is directly opposite to the first water outlet, and the second water outlet is directly opposite to the first water inlet. When the water flows from the first water outlet to the second water inlet, there is no need to reverse the direction, and when the water flows from the second water outlet to the first water inlet, there is no need to reverse the direction. In this way, the number of reversals of the entire circulating water flow of the dishwasher can be reduced, which is beneficial to reducing hydraulic loss, improving hydraulic utilization efficiency, and ensuring the cleaning effect of tableware.

[0032] Other advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other designs can be obtained based on the structures shown in these drawings without paying any creative work.

[0034] FIG1 is a schematic diagram of a partial structure of a dishwasher in some embodiments;

[0035] FIG2 is a schematic diagram of a partial structure of a dishwasher in some embodiments (the viewing angle is different from that of FIG1 );

[0036] FIG3 is a schematic diagram of a partial structure of a dishwasher in some embodiments (the viewing angle is the same as FIG2 , and the washing pump is omitted);

[0037] FIG4 is a schematic diagram of the assembly of a water cup and a washing pump in some embodiments;

[0038] FIG5 is a schematic diagram of the assembly of a water cup and a washing pump in some embodiments (the viewing angle is different from that of FIG4 );

[0039] FIG6 is an exploded view of the structure shown in FIG4 ;

[0040] FIG7 is an exploded view of the structure shown in FIG4 (the viewing angle is different from that of FIG5 );

[0041] FIG8 is an exploded view of the structure shown in FIG4 (the viewing angle is different from FIG5 and FIG6);

[0042] FIG9 is an exploded view of the structure shown in FIG4 (the viewing angle is different from that of FIG5, FIG6, and FIG7);

[0043] FIG10 is an exploded view of the structure shown in FIG4 (the viewing angle is different from that of FIG5, FIG6, FIG7, and FIG8);

[0044] FIG11 is a schematic diagram of a washing pump in some embodiments;

[0045] FIG12 is an exploded view of a washing pump in some embodiments;

[0046] FIG13 is a schematic diagram showing the coordination between the first water outlet and the second water inlet in some embodiments;

[0047] FIG14 is a schematic projection diagram of the first water outlet and the second water inlet in some embodiments (the two are the same size and completely overlap);

[0048] FIG15 is a schematic diagram of projections of the first water outlet and the second water inlet in some embodiments (the projections of the first water outlet and the second water inlet are not coaxial);

[0049] FIG16 is a schematic diagram of projections of the first water outlet and the second water inlet in some embodiments (the projections of the first water outlet and the second water inlet are coaxial);

[0050] FIG17 is a schematic diagram showing the coordination between the second water outlet and the first water inlet in some embodiments;

[0051] FIG18 is a schematic projection diagram of the second water outlet and the first water inlet in some embodiments (the two are the same size and completely overlap);

[0052] FIG19 is a schematic diagram of the projection of the second water outlet and the first water inlet in some embodiments (the projection of the second water outlet and the first water inlet are not coaxial);

[0053] FIG20 is a schematic diagram of the projection of the second water outlet and the first water inlet in some embodiments (the projections of the second water outlet and the first water inlet are coaxial).

[0054] Description of Figure Numbers:

[0055] Inner tank 1000, spray arm 2000, water cup 3000, first water outlet joint 3100, first water outlet 3110, first water inlet joint 3200, first water inlet 3210, water diverter valve 3300, washing pump 4000, pump casing 4100, first half 4110, second water inlet joint 4111, second water inlet 41111, second water outlet joint 4112, second water outlet 41121, annular flow channel 4113, second half 4120, motor 4200, centrifugal impeller 4300, first straight pipe 5100, second straight pipe 5200, first plane 6100, second plane 6200.

[0056] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0058] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0059] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0061] The present application provides a dishwasher. In conjunction with Figures 1, 2, 3, 11, and 13 to 20, in some embodiments of the present application, the dishwasher includes a first water outlet 3110, a first water inlet 3210, and a washing pump 4000. The washing pump 4000 is provided with a second water inlet 41111 and a second water outlet 41121. The first water outlet 3110 is connected to the second water inlet 41111, and water is suitable for flowing from the first water outlet 3110 into the second water inlet 41111. 1. The first water inlet 3210 is connected to the second water outlet 41121. Water is suitable for flowing from the second water outlet 41121 into the first water inlet 3210. The axial direction of the first water outlet 3110 and the axial direction of the second water inlet 41111 are designed to be arranged in the same direction. The axial direction of the first water inlet 3210 and the axial direction of the second water outlet 41121 are designed to be arranged in the same direction. A first plane and a second plane are defined. The first plane is perpendicular to the axial direction of the first water outlet 3110 and the axial direction of the second water inlet 41111. The second plane is perpendicular to the axial direction of the first water inlet 3210 and the axial direction of the second water outlet 41121. The projection of the first water outlet 3110 toward the first plane 6100 and the projection of the second water inlet 41111 toward the first plane 6100 are both within the range of the other. The projection of the first water inlet 3210 toward the second plane 6200 and the projection of the second water outlet 41121 toward the second plane 6200 are both within the range of the other. The water inlet 41111 is directly opposite to the first water outlet 3110, so that the second water outlet 41121 is directly opposite to the first water inlet 3210. The water does not need to be reversed when it flows from the first water outlet 3110 to the second water inlet 41111, and the water does not need to be reversed when it flows from the second water outlet 41121 to the first water inlet 3210. This can reduce the number of reversals of the entire circulating water flow of the dishwasher, which is beneficial to reducing hydraulic loss, improving hydraulic utilization efficiency, and ensuring the cleaning effect of the tableware.

[0062] Specifically, the dishwasher includes an inner container 1000 and a spray arm 2000. Dishware is placed within the inner container 1000. A bowl basket is provided within the inner container 1000, upon which the dishes can be placed. The spray arm 2000 is rotatably disposed within the inner container 1000, generally below the bowl basket. The dishwasher's first water outlet 3110 is connected to the inner container 1000, and its first water inlet 3210 is connected to the spray arm 2000. To wash dishes, a predetermined amount of water is introduced into the inner container 1000 to a predetermined level (the dishwasher has a water inlet control component, which is used to achieve this; this will not be described in detail here; please refer to the relevant art). The washing pump 4000 is activated, and the water in the inner container 1000 is discharged from the first water outlet 3110 and pumped into the washing pump 4000. The washing pump 4000 then delivers the pumped water through the first water inlet 3210 to the spray arm 2000. The spray arm 2000 is provided with a spray hole, and water is sprayed out from the spray hole. By setting the angle of the spray hole, the spray arm 2000 is driven to rotate synchronously under the reaction force of the water spray, so that the sprayed water is sprayed towards the tableware to flush the tableware. The water after flushing the tableware falls back to the bottom of the inner tank 1000, and continues to be sucked by the washing pump 4000, thus forming a circulating water flow until the water is discharged (through the drainage pump) after the washing is completed.

[0063] During the water circulation process, it will undergo multiple reversals. Each reversal of the water flow results in energy loss, which reduces the water pressure when the water flows to the spray arm 2000, and in turn reduces the flushing ability of the water flow ejected from the nozzle. In particular, the washing pump 4000 and the inner tank 1000 are two components with different structures and different spatial positions. Water flow through the connection between the two is prone to hydraulic loss. For example, water flow out of the first water outlet 3110 needs to change direction before entering the washing pump 4000. When the water flow leaves the washing pump 4000, it needs to change direction before flowing into the first water inlet 3210, thus resulting in hydraulic loss. Therefore, the present application provides an optimized solution to this problem.

[0064] A first plane 6100 is defined. The first plane 6100 is a virtual plane. The first plane 6100 is perpendicular to the axial direction of the first water outlet 3110 and the axial direction of the second water inlet 41111. That is, the axial direction of the first water outlet 3110 and the axial direction of the second water inlet 41111 are arranged in the same direction. The first water outlet 3110 is projected toward the first plane 6100, and the second water inlet 41111 is projected toward the first plane 6100. The projection of the first water outlet 3110 and the projection of the second water inlet 41111 are perpendicular to each other. One of the projections of 11 is located within the range of the projection of the first water outlet 3110 and the other of the projection of the second water inlet 41111. In this way, the first water outlet 3110 and the second water inlet 41111 are directly opposite to each other. When water flows out from the first water outlet 3110, it can enter the second water inlet 41111 without changing direction, and thus enter the interior of the washing pump 4000. This can reduce the hydraulic loss of water flowing from the first water outlet 3110 to the second water inlet 41111.

[0065] Similarly, a second plane 6200 is defined, which is also a virtual plane. The second plane 6200 is perpendicular to the axial direction of the first water inlet 3210 and the axial direction of the second water outlet 41121, that is, the axial direction of the first water inlet 3210 and the axial direction of the second water outlet 41121 are arranged in the same direction. The first water inlet 3210 is projected toward the second plane 6200, and the second water outlet 41121 is projected toward the second plane 6200. The projection of the first water inlet 3210 and the projection of the second water outlet 41121 are perpendicular to each other. One of the projections of the opening 41121 is located within the range of the other of the projection of the first water inlet 3210 and the projection of the second water outlet 41121. In this way, the first water inlet 3210 and the second water outlet 41121 are directly opposite to each other. When water flows out of the second water outlet 41121, it can enter the first water inlet 3210 without changing direction, and then enter the spray arm 2000. In this way, the hydraulic loss of water flowing from the second water outlet 41121 to the first water inlet 3210 can be reduced.

[0066] It is understood that the projection of the first water outlet 3110 or the projection of the second water inlet 41111 is within the range of the other, and the projection of the first water inlet 3210 or the projection of the second water outlet 41121 is within the range of the other, that is, the projection of the first water inlet 3210 or the projection of the second water outlet 41121 does not exceed the outline of the other. Alternatively, the projection of the first water outlet 3110 or the projection of the second water inlet 41121 may be exactly the same size as the other and completely cover each other, or the projection of the first water outlet 3110 or the projection of the second water inlet 41121 may be within the range of the other and have a predetermined distance from the other, or the projection of the first water outlet 3110 or the projection of the second water inlet 41121 may be within the range of the other and have their outlines tangent to the other at a certain point.

[0067] Taking the example of the projection of the first water outlet 3110 being located within the range of the projection of the second water inlet 41111, it can be that the projection of the first water outlet 3110 and the projection of the second water inlet 41111 are exactly the same size and completely cover each other, or that the projection of the first water outlet 3110 is located within the outline of the projection of the second water inlet 41111 and is at a preset distance from the outline of the projection of the second water inlet 41111, or that the projection of the first water outlet 3110 is located within the outline of the projection of the second water inlet 41111 and is tangent to the outline of the projection of the second water inlet 41111 at a certain point.

[0068] Through the mutual coordination in spatial position between the first water outlet 3110 and the second water inlet 41111, as well as the first water inlet 3210 and the second water outlet 41121, the hydraulic loss when water flows from the first water outlet 3110 to the second water inlet 41111, and from the second water outlet 41121 to the first water inlet 3210 can be reduced, which is beneficial to improving the hydraulic efficiency and ensuring the cleaning effect of the tableware.

[0069] As shown in conjunction with Figures 13, 15, and 16, in some embodiments of the present application, the projection of the first water outlet 3110 onto the first plane 6100 is smaller than the projection of the second water inlet 41111 onto the first plane 6100. In this embodiment, by designing the projection of the first water outlet 3110 to be smaller than the projection of the second water inlet 41111, when water flows from the first water outlet 3110 to the second water inlet 41111, since the second water inlet 41111 is larger, the edge of the second water inlet 41111 is less likely to obstruct the water flow, thereby avoiding reducing the resistance to the water flow. Furthermore, the larger second water inlet 41111 is beneficial for converting the velocity energy of the water flow into pressure energy, reducing energy loss when the water flows from the first water outlet 3110 to the second water inlet 41111, and further facilitating the washing pump 4000 to increase the pressure of the water flow.

[0070] Similarly, as shown in Figures 17, 19, and 20, the projection of the first water inlet 3210 onto the second plane 6200 is larger than the projection of the second water outlet 41121 onto the second plane 6200. In this embodiment, by designing the projection of the first water inlet 3210 to be larger than the projection of the second water outlet 41121, when water flows from the second water outlet 41121 to the first water inlet 3210, the larger first water inlet 3210 reduces the risk of obstruction to the water flow, thereby reducing resistance to the water flow. Furthermore, the larger first water inlet 3210 facilitates the conversion of water velocity energy into pressure energy, reducing energy loss when water flows from the second water outlet 41121 to the first water inlet 3210, and further facilitating water delivery to the spray arm 2000. Second water outlet 41121.

[0071] In combination with Figure 16, in some embodiments of the present application, the outline of the projection of the first water outlet 3110 and the outline of the projection of the second water inlet 41111 are separated by a preset distance. It can be understood that since the projection of the first water outlet 3110 is smaller than the projection of the second water inlet 41111, the outline of the projection of the first water outlet 3110 and the outline of the projection of the second water inlet 41111 are separated by a preset distance, that is, the projection of the first water outlet 3110 is located within the outline range of the projection of the second water inlet 41111, and is separated from the outline of the projection of the second water inlet 41111 by a preset distance. L1 shown in Figure 16 is the distance between the outline of the projection of the first water outlet 3110 and the outline of the projection of the second water inlet 41111. Through such a setting, when water flows from the first water outlet 3110 to the second water inlet 41111, the water flow is more evenly distributed, making full use of the space, which is conducive to increasing flow and reducing resistance.

[0072] Similarly, in combination with Figure 20, the outline of the projection of the first water inlet 3210 and the outline of the projection of the second water outlet 41121 are separated by a preset distance. It can be understood that since the projection of the first water inlet 3210 is larger than the projection of the second water outlet 41121, the outline of the projection of the first water inlet 3210 and the outline of the projection of the second water outlet 41121 are separated by a preset distance, that is, the projection of the second water outlet 41121 is located within the outline range of the projection of the first water inlet 3210, and is separated from the outline of the projection of the first water inlet 3210 by a preset distance. L2 shown in Figure 20 is the distance between the outline of the projection of the first water inlet 3210 and the outline of the projection of the second water outlet 41121. Through such a setting, when water flows from the second water outlet 41121 to the first water inlet 3210, the water flow is more evenly distributed, making full use of the space, which is conducive to increasing flow and reducing resistance.

[0073] In combination with Figures 16 and 20, in some embodiments of the present application, the first water outlet 3110 is designed to be coaxial with the second water inlet 41111, that is, the center of the first water outlet 3110 is coaxial with the center of the second water inlet 41111. For example, the first water outlet 3110 is circular and the second water inlet 41111 is also circular, so that the center of the first water outlet 3110 is coaxial with the center of the second water inlet 41111.

[0074] The coaxial arrangement of the first water outlet 3110 and the second water inlet 41111 further reduces the spatial positional difference between the first water outlet 3110 and the second water inlet 41111, thereby further facilitating connection and communication between the first water outlet 3110 and the second water inlet 41111. Furthermore, when the projected outline of the first water outlet 3110 and the projected outline of the second water inlet 41111 are at a predetermined distance, the coaxial arrangement of the first water outlet 3110 and the second water inlet 41111 ensures that, when water flows through the first water outlet 3110 and the second water inlet 41111, the water flow is more evenly distributed in the direction surrounding the coaxial arrangement, resulting in a smoother flow and more conducive to water transmission.

[0075] Similarly, the first water inlet 3210 is designed to be coaxial with the second water outlet 41121, that is, the center of the first water inlet 3210 is coaxial with the center of the second water outlet 41121. For example, if the first water inlet 3210 is circular, the second water outlet 41121 is also circular, so the center of the first water inlet 3210 is coaxial with the center of the second water outlet 41121.

[0076] The coaxial arrangement of the first water inlet 3210 and the second water outlet 41121 further reduces the spatial positional difference between the first water inlet 3210 and the second water outlet 41121, further facilitating connection and communication between the first water inlet 3210 and the second water outlet 41121. Furthermore, when the projected outline of the second water outlet 41121 is a predetermined distance from the projected outline of the first water inlet 3210, the coaxial arrangement of the first water inlet 3210 and the second water outlet 41121 ensures that when water flows through the second water outlet 41121 and the first water inlet 3210, the water flow is more evenly distributed in the direction surrounding the coaxial arrangement, resulting in a smoother flow and more conducive to water transmission.

[0077] 4 to 10 , in some embodiments of the present application, the first water outlet 3110 is connected to the second water inlet 41111 through a connecting tube (such as a deformable tube such as a rubber tube or a silicone tube), and the first water inlet 3210 is also connected to the second water outlet 41121 through a connecting tube.

[0078] It can be understood that the first water outlet 3110 and the second water inlet 41111 can be directly connected or indirectly connected through a connecting pipe, and the first water inlet 3210 and the second water outlet 41121 can be directly connected or indirectly connected through an intermediate component.

[0079] Specifically, the first water outlet 3110 is formed by the first water outlet joint 3100, the first water inlet 3210 is formed by the first water inlet joint 3200, the second water inlet 41111 is formed by the second water inlet joint 4111, and the second water outlet 41121 is formed by the second water outlet joint 4112. The materials of the first water outlet joint 3100, the first water inlet joint 3200, the second water inlet joint 4111 and the second water outlet joint 4112 are relatively hard, and the first water outlet joint 3100 and the second water inlet joint 4111 are connected simultaneously, while the first water inlet joint 3200 and the second water outlet joint 4112 are more difficult to connect. To this end, in this embodiment, the first water outlet 3110 and the second water inlet 41111 are connected by a connecting pipe (i.e., the first water outlet joint 3100 and the connecting pipe are plugged into each other, and the second water inlet joint 4110 and the connecting pipe are plugged into each other), and the first water inlet 3210 and the second water outlet 41121 are connected by a connecting pipe (i.e., the first water inlet joint 3200 and the connecting pipe are plugged into each other, and the second water outlet joint 4112 and the connecting pipe are plugged into each other), which makes it easier to achieve a sealed connection. Moreover, by setting up the connecting pipe, the vibration generated by the washing pump 4000 will also be blocked / absorbed by the connecting pipe, thereby preventing the vibration from being transmitted to the inner tank 1000, thereby reducing noise.

[0080] Further, in combination with Figures 6, 7 and 8, the connecting pipe connecting the first water outlet 3110 and the second water inlet 41111 is the first straight pipe 5100. The first straight pipe 5100 is a pipe extending roughly in a straight line, so that the water flow does not need to change direction when flowing in the first straight pipe 5100. One end of the first straight pipe 5100 is connected to the first water outlet 3110, and the other end of the first straight pipe 5100 is connected to the second water inlet 41111 (that is, one end of the first straight pipe 5100 is connected to the first water outlet connector 3100, and the other end is connected to the second water inlet connector 41111). The first water outlet 3110, the first straight pipe 5100 and the second water inlet 41111 are arranged in the same line, so that the water flow does not need to change direction when flowing through the first water outlet 3110, the first straight pipe 5100 and the second water inlet 41111, thereby reducing losses.

[0081] As shown in Figures 9 and 10, the connecting pipe connecting the first water inlet 3210 and the second water outlet 41121 is a second straight pipe 5200. The second straight pipe 5200 is a pipe extending roughly in a straight line, so that the water flow does not need to change direction when flowing in the second straight pipe 5200. One end of the second straight pipe 5200 is connected to the first water inlet 3210, and the other end of the second straight pipe 5200 is connected to the second water outlet 41121 (that is, one end of the second straight pipe 5200 is connected to the first water inlet joint 3200, and the other end is connected to the second water outlet joint 4112). The first water inlet 3210, the second straight pipe 5200 and the second water outlet 41121 are arranged in the same line, so that the water flow does not need to change direction when flowing through the second water outlet 41121, the second straight pipe 5200 and the first water inlet 3210, thereby reducing losses.

[0082] As shown in Figures 11 and 12, in some embodiments of the present application, a washing pump 4000 includes a pump housing 4100, a centrifugal impeller 4300, and a motor 4200. The pump housing 4100 is used to form a cavity for pumping water. The pump housing 4100 is provided with a second water inlet 41111 and a second water outlet 41121. The pump housing 4100 can be made of plastic or other materials. To meet different installation requirements, the pump housing 4100 can be an integrally molded structure or a split-connected structure, and can be of a regular or irregular shape. The motor 4200 includes a stator and a rotor. The stator and pump housing 4100 are assembled together. The stator and pump housing 4100 can be fixed to each other by screw fastening or other means. The rotor is disposed inside the stator, and the centrifugal impeller 4300 is fixed to the rotor and located in the pump housing 4100. When the washing pump 4000 is working, the rotor rotates relative to the stator, and the rotor drives the centrifugal impeller 4300 to rotate, thereby driving the water flow from the first water outlet 3110 through the second water inlet 41111 and into the washing pump 4000, and making the water flow from the second water outlet 41121 through the first water inlet 3210 and be delivered to the spray arm 2000.

[0083] In this embodiment, the pump casing 4100 is divided into a first half 4110 and a second half 4120 along the axial direction of the centrifugal impeller 4300, and the motor 4200 is assembled to the second half 4120. The first half 4110 is away from the motor 4200 relative to the second half 4120, and the second water inlet 41111 and the second water outlet 41121 are arranged in the first half 4110, thereby shortening the distance between the first water outlet 3110 and the second water inlet 41111, and shortening the distance between the first water inlet 3210 and the second water outlet 41121.

[0084] It can be understood that when the second water inlet 41111 is connected to the first water outlet 3110, and the second water outlet 41121 is connected to the first water inlet 3210, the entire washing pump 4000 needs to be close to the structure with the first water outlet 3110 and the first water inlet 3210 (such as the water cup 3000 mentioned below), that is, the first half 4110 is closer to the structure with the first water outlet 3110 and the first water inlet 3210 than the second half 4120 and the motor 4200. Therefore, in this embodiment, By setting the second water inlet 41111 and the second water outlet 41121 in the first half 4110, the distance between the first water outlet 3110 and the second water inlet 41111, as well as the distance between the first water inlet 3210 and the second water outlet 41121 can be effectively shortened. This can reduce the along-the-line resistance of water flowing from the first water outlet 3110 to the second water inlet 41111 and from the second water outlet 41121 to the first water inlet 3210 (shortening the length of the connecting pipe), thereby further improving the hydraulic efficiency.

[0085] It is understandable that the first half 4110 and the second half 4120 here are not limited to two separate parts connected to each other, but are artificially divided into two halves. The first half 4110 and the second half 4120 can be integrally formed or can be split structures connected to each other.

[0086] As shown in Figure 12, in some embodiments of the present application, the centrifugal impeller 4300 is coaxially arranged with the second water inlet 41111, that is, the axial direction of the centrifugal impeller 4300 is coaxial with the axial direction of the second water inlet 41111. It can be understood that the centrifugal impeller 4300 takes in water axially and discharges water radially. In this way, when the water flows from the first water outlet 3110 through the second water inlet 41111 and continues to flow, the water flow does not need to be reversed to reach the centrifugal impeller 4300, and the water flow efficiency is high.

[0087] As shown in Figures 11 and 12, in some embodiments of the present application, the first half 4110 is provided with an annular flow channel 4113, and the end of the annular flow channel 4113 forms a second water outlet 41121, and the annular flow channel 4113 surrounds the second water inlet 41111. Since the second water inlet 41111 is coaxial with the centrifugal impeller 4300, the annular flow surrounds the axial direction of the centrifugal impeller 4300. As mentioned above, the centrifugal impeller 4300 takes in water axially and discharges water radially. By designing the annular flow channel 4113, the water flow thrown out from the centrifugal impeller 4300 can be better received and then directed to the second water outlet 41121, thereby reducing the resistance of the water flow reversing in the washing pump 4000.

[0088] 1 to 11 , in some embodiments of the present application, the dishwasher includes a water cup 3000 , wherein the water cup 3000 is provided with the first water outlet 3110 and the first water inlet 3210 .

[0089] Specifically, the water cup 3000 is installed to the bottom of the inner liner 1000. The water cup 3000 and the bottom of the inner liner 1000 can be integrally formed, or the water cup 3000 can be a separate component relative to the bottom of the inner liner 1000 and will be connected to the bottom of the inner liner 1000 through connection means. Through the setting of the water cup 3000, water collection and delivery can be better achieved.

[0090] That is, when washing dishes, first a certain amount of water is introduced into the inner tank 1000 to a predetermined water level, which is slightly higher than the bottom of the inner tank 1000. At this time, the water has filled the water cup 3000, and the washing pump 4000 is controlled to start. The washing pump 4000 sucks the water in the water cup 3000, and the water flows out from the first water outlet 3110, flows into the washing pump 4000 through the second water inlet 41111 of the washing pump 4000, and is then transported to the spray arm 2000 through the second water outlet 41121 and the first water inlet 3210.

[0091] As shown in FIG10 , in some embodiments of the present application, the water cup 3000 is provided with a water diverter valve 3300 . The water diverter valve 3300 is formed with the aforementioned first water inlet 3210 . The water diverter valve 3300 is a component that diverts water and controls the flow direction according to actual conditions. It is understood that the dishwasher spray arms 2000 are divided into upper, middle, and lower spray arms. If the amount of dishware is small, it is not necessary to activate all of the upper, middle, and lower spray arms 2000 . For example, only the lower spray arm, only the middle spray arm, only the upper spray arm, or only two of the upper, middle, and lower spray arms may be used. Thus, by providing a water diverter valve, the upper, middle, and lower spray arms are all connected to the water diverter valve 3300 , while the second water outlet 41121 of the washing pump 4000 is connected to the water diverter valve 3300 . Thus, water diversion control is achieved through the water diverter valve 3300 .

[0092] As shown in FIG3 , in some embodiments of the present application, the first water inlet 3210 is disposed above the first water outlet 3110 (above means higher, and may be directly above or obliquely above), and the axial direction of the first water outlet 3110 extends horizontally, while the axial direction of the first water inlet 3210 extends vertically. Since the first water outlet 3110 and the second water inlet 41111 need to be directly opposite each other, the first water inlet 3210 and the second water outlet 41121 also need to be directly opposite each other. This arrangement can reduce the space occupied by the washing pump 4000 when installed, for example, maximizing space utilization in the up-down and left-right directions, which is conducive to the compactness of the dishwasher. It is understood that the horizontal direction is generally horizontal, such as the front-to-back direction in FIG1 and FIG5 , and the vertical direction can be regarded as generally up-down.

[0093] The above description is only a preferred embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made based on the contents of the present application specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present application.

Claims

1. A dishwasher, wherein, Including: The first water outlet; The first water inlet; And A washing pump, the washing pump having a second water inlet and a second water outlet, the second water inlet communicating with the first water outlet to receive water flow, and the second water outlet communicating with the first water inlet to discharge water flow; The axis of the second water inlet is arranged in the same direction as the axis of the first water outlet. Define a first plane perpendicular to the axis of the second water inlet and the axis of the first water outlet. One of the projection of the second water inlet towards the first plane and the projection of the first water outlet towards the first plane is within the range of the other; The axis of the second water outlet is arranged in the same direction as the axis of the first water inlet. Define a second plane perpendicular to the axis of the second water outlet and the axis of the first water inlet. One of the projection of the second water outlet towards the second plane and the projection of the first water inlet towards the second plane is within the range of the other.

2. The dishwasher according to claim 1, wherein, The projection of the second water inlet towards the first plane is larger than the projection of the first water outlet towards the first plane; And / or, the projection of the second water outlet towards the second plane is smaller than the projection of the first water inlet towards the second plane.

3. The dishwasher according to claim 2, wherein, The contour of the projection of the second water inlet and the contour of the projection of the first water outlet are separated by a preset distance; And / or, the contour of the projection of the second water outlet and the contour of the projection of the first water inlet are separated by a preset distance.

4. The dishwasher according to any one of claims 1 to 3, wherein, The second water inlet and the first water outlet are coaxially arranged; And / or, the second water outlet and the first water inlet are coaxially arranged.

5. The dishwasher according to any one of claims 1 to 4, wherein, The dishwasher further includes a first straight pipe connecting the second water inlet and the first water outlet to communicate the second water inlet and the first water outlet.

6. The dishwasher according to any one of claims 1 to 5, wherein, The dishwasher further includes a second straight pipe connecting the second water outlet and the first water inlet to communicate the second water outlet and the first water inlet.

7. The dishwasher according to any one of claims 1 to 6, wherein, The washing pump includes a pump housing, a centrifugal impeller and a motor. The pump housing is equally divided into a first half and a second half along the axis of the centrifugal impeller. The motor is installed in the second half, and the second water inlet and the second water outlet are arranged in the first half.

8. The dishwasher according to claim 7, wherein, The second water inlet and the centrifugal impeller are coaxially arranged.

9. The dishwasher according to claim 7 or 8, wherein, The first half has an annular flow channel surrounding the second water inlet, and the end of the annular flow channel forms the second water outlet.

10. The dishwasher according to any one of claims 1 to 9, wherein, The dishwasher includes a water cup, and the first water outlet and the first water inlet are provided on the water cup.

11. The dishwasher according to claim 10, wherein, The water cup is provided with a water distribution valve, and the first water inlet is provided on the water distribution valve.

12. The dishwasher according to any one of claims 1 to 11, wherein, The axis of the first water outlet extends horizontally, the axis of the first water inlet extends vertically, and the first water inlet is located above the first water outlet.

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