Dishwasher

Abstract

The dish washing machine comprises 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, and the second water outlet is communicated with the first water inlet to discharge the water flow. The axial direction of the second water inlet and the axial direction of the first water outlet are arranged in the same direction, the 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, and 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 and the axial direction of the first water inlet are arranged in the same direction, the 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. Through the arrangement, the reversing frequency of circulating water flow can be reduced, and hydraulic loss can be reduced.

Description

Technical Field

[0001] This application relates to the technical field of tableware cleaning equipment, and particularly to a dishwasher. Background Art

[0002] The dishwasher cleans tableware by circulating, sucking, and conveying water flow. Specifically, the dishwasher has a washing pump. The washing pump sucks the water in the dishwasher and conveys it to the spray arm. The spray arm sprays the water flow towards the tableware to achieve the cleaning of the tableware. The water flow then falls back and is continuously sucked by the washing pump. In the related art, during the process of the washing pump sucking and conveying the water flow, the water flow needs to change direction multiple times, resulting in hydraulic losses. Summary of the Invention

[0003] This application aims to solve at least one of the technical problems in the related art to some extent. For this purpose, this application provides a dishwasher.

[0004] To achieve the above object, this application discloses a dishwasher, which includes:

[0005] A first water outlet;

[0006] A first water inlet; and

[0007] A washing pump, the washing pump having a second water inlet and a second water outlet. The second water inlet is communicated with the first water outlet to receive the water flow, and the second water outlet is communicated with the first water inlet to discharge the water flow;

[0008] Wherein, the axial direction of the second water inlet and the axial direction of the first water outlet are arranged in the same direction. Define a first plane perpendicular to the axial directions of the second water inlet and the first water outlet. One of the projections of the second water inlet towards the first plane and the projection of the first water outlet towards the first plane is located within the range of the other;

[0009] The axial direction of the second water outlet and the axial direction of the first water inlet are arranged in the same direction. Define a second plane perpendicular to the axial directions of the second water outlet and the first water inlet. One of the projections of the second water outlet towards the second plane and the projection of the first water inlet towards the second plane is located within the range of the other.

[0010] In some embodiments of this application, 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;

[0011] 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.

[0012] In some embodiments of the present application, 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;

[0013] 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.

[0014] In some embodiments of the present application, the second water inlet and the first water outlet are coaxially arranged;

[0015] and / or, the second water outlet and the first water inlet are coaxially arranged.

[0016] In some embodiments of the present application, the dishwasher further includes a first straight pipe, and the first straight pipe connects the second water inlet and the first water outlet to communicate the second water inlet and the first water outlet.

[0017] In some embodiments of the present application, the dishwasher further includes a second straight pipe, and the second straight pipe connects the second water outlet and the first water inlet to communicate the second water outlet and the first water inlet.

[0018] In some embodiments of the present application, 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 axial direction 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.

[0019] In some embodiments of the present application, the second water inlet and the centrifugal impeller are coaxially arranged.

[0020] In some embodiments of the present application, the first half has an annular flow channel, the annular flow channel surrounds the second water inlet, and the end of the annular flow channel forms the second water outlet.

[0021] In some embodiments of the present application, the dishwasher includes a water cup, and the first water outlet and the first water inlet are provided on the water cup.

[0022] In some embodiments of the present application, the water cup is provided with a water distribution valve, and the first water inlet is provided on the water distribution valve.

[0023] In some embodiments of the present application, the axial direction of the first water outlet extends horizontally, the axial direction of the first water inlet extends vertically, and the first water inlet is located above the first water outlet.

[0024] In the technical solution of the present application, by making the projection of the second water inlet within the range of the projection of the first water outlet, and making the projection of the second water outlet within the range of the projection of the first water inlet, 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 flow enters the second water inlet from the first water outlet, no flow direction change is required, and when the water flow enters the first water inlet from the second water outlet, no flow direction change is required either. In this way, the number of flow direction changes of the entire circulating water flow in the dishwasher can be reduced, which is beneficial to reducing hydraulic losses, improving hydraulic utilization efficiency, and ensuring the cleaning effect on tableware.

[0025] Other advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other designs can be obtained based on the structures shown in these drawings without creative efforts.

[0027] Figure 1 Schematic diagram of the partial structure of the dishwasher in some embodiments;

[0028] Figure 2 Schematic diagram of the partial structure of the dishwasher in some embodiments (viewing angle is Figure 1 different);

[0029] Figure 3 Schematic diagram of the partial structure of the dishwasher in some embodiments (viewing angle is Figure 2 the same, washing pump is missing);

[0030] Figure 4 Schematic diagram of the assembly of the water cup and the washing pump in some embodiments;

[0031] Figure 5 Schematic diagram of the assembly of the water cup and the washing pump in some embodiments (viewing angle is Figure 4 different);

[0032] Figure 6 For Figure 4 the structural decomposition diagram shown;

[0033] Figure 7 For Figure 4 the structural decomposition diagram shown (viewing angle is Figure 5 different);

[0034] Figure 8 ForFigure 4 Exploded view shown (viewpoint is different from Figure 5 , Figure 6 );

[0035] Figure 9 is Figure 4 Exploded view shown (viewpoint is different from Figure 5 , Figure 6 , Figure 7 );

[0036] Figure 10 is Figure 4 Exploded view shown (viewpoint is different from Figure 5 , Figure 6 , Figure 7 , Figure 8 );

[0037] Figure 11 Schematic diagram of a washing pump in some embodiments;

[0038] Figure 12 Exploded view of a washing pump in some embodiments;

[0039] Figure 13 Schematic diagram of the cooperation between the first water outlet and the second water inlet in some embodiments;

[0040] Figure 14 Projection schematic diagram of the first water outlet and the second water inlet in some embodiments (both are the same size and completely overlap);

[0041] Figure 15 Projection schematic diagram 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 non - coaxial);

[0042] Figure 16 Projection schematic diagram 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);

[0043] Figure 17 Schematic diagram of the cooperation between the second water outlet and the first water inlet in some embodiments;

[0044] Figure 18 Projection schematic diagram of the second water outlet and the first water inlet in some embodiments (both are the same size and completely overlap);

[0045] Figure 19 Projection schematic diagram 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 non - coaxial);

[0046] Figure 20 Projection schematic diagram 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).

[0047] Description of the reference numerals in the drawings:

[0048] Inner liner 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 distribution valve 3300, washing pump 4000, pump housing 4100, first half part 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 part 4120, motor 4200, centrifugal impeller 4300, first straight pipe 5100, second straight pipe 5200, first plane 6100, second plane 6200.

[0049] The realization of the object of the present application, functional features and advantages will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0050] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0051] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0052] In the present application, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0053] In addition, in this application, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0054] This application provides a dishwasher. As shown in combination with Figure 1 , Figure 2 , Figure 3 , Figure 11 and Figures 13 to 20 , in some embodiments of this 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 communicated with the second water inlet 41111, and the water flow is adapted to flow from the first water outlet 3110 into the second water inlet 41111. The first water inlet 3210 is communicated with the second water outlet 41121, and the water flow is adapted to flow 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 in the same direction, and the axial direction of the first water inlet 3210 and the axial direction of the second water outlet 41121 are designed to be in the same direction. A first plane and a second plane are defined. The first plane is perpendicular to the axial directions of the first water outlet 3110 and the second water inlet 41111, and the second plane is perpendicular to the axial directions of the first water inlet 3210 and the second water outlet 41121. One of the projections of the first water outlet 3110 onto the first plane 6100 and the projection of the second water inlet 41111 onto the first plane 6100 is within the range of the other. One of the projections of the first water inlet 3210 onto the second plane 6200 and the projection of the second water outlet 41121 onto the second plane 6200 is within the range of the other. In this way, the second water inlet 41111 is directly opposite to the first water outlet 3110, and the second water outlet 41121 is directly opposite to the first water inlet 3210. When the water flow enters the second water inlet 41111 from the first water outlet 3110, no commutation is required, and when the water flow enters the first water inlet 3210 from the second water outlet 41121, no commutation is required. In this way, the number of commutations of the entire circulating water flow of the dishwasher can be reduced, which is beneficial to reducing hydraulic losses, improving hydraulic utilization efficiency, and ensuring the cleaning effect on tableware.

[0055] Specifically, the dishwasher includes an inner container 1000 and a spray arm 2000. Tableware is placed inside the inner container 1000. A bowl basket is provided inside the inner container 1000, and the tableware can be placed on the bowl basket. The spray arm 2000 is rotatably arranged inside the inner container 1000, generally located below the bowl basket. The first water outlet 3110 of the dishwasher is communicated with the inner container 1000, and the first water inlet 3210 of the dishwasher is communicated with the spray arm 2000. When washing tableware, a certain amount of water needs to be introduced into the inner container 1000 to a predetermined water level (the dishwasher has a water inlet control component, and water inlet is achieved through the water inlet control component, which will not be elaborated here and can be referred to the related technology). The washing pump 4000 is controlled to start. The water in the inner container 1000 is discharged from the first water outlet 3110 and sucked into the washing pump 4000. The washing pump 4000 conveys the sucked water to the spray arm 2000 through the first water inlet 3210. Spray holes are provided on the spray arm 2000, and water flows out from the spray holes. By setting the angles of the spray holes, the spray arm 2000 is driven to rotate synchronously under the reaction force of the water flow when it sprays out. In this way, the sprayed water flow shoots towards the tableware to achieve the flushing of the tableware. The water after flushing the tableware falls back to the bottom of the inner container 1000 and is thus continuously sucked by the washing pump 4000, so as to form a circulating water flow until the water flow is drained away (through the drain pump) after the washing is completed.

[0056] During the process of the water flow circulation, there will be multiple direction changes. Each direction change of the water flow results in energy loss, which will reduce the water pressure when the water flow reaches the spray arm 2000, and then reduce the flushing ability of the water flow sprayed out from the nozzle. In particular, the washing pump 4000 and the inner container 1000 are two components with different structures and different spatial positions. There is likely to be hydraulic loss when the water flow passes through the connection between the two. For example, the water flow needs to change direction when flowing out of the first water outlet 3110 to enter the washing pump 4000, and the water flow needs to change direction when flowing out of the washing pump 4000 to enter the first water inlet 3210, so there is hydraulic loss. Therefore, this application optimizes and solves this problem.

[0057] A first plane 6100 is defined. The first plane 6100 is a virtual plane and 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 directions of the first water outlet 3110 and the second water inlet 41111 are arranged in the same direction. The first water outlet 3110 projects towards the first plane 6100, and the second water inlet 41111 projects towards the first plane 6100. One of the projections of the first water outlet 3110 and the projection of the second water inlet 41111 is within the range of the other. 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. In this way, the hydraulic loss of the water flowing from the first water outlet 3110 to the second water inlet 41111 can be reduced.

[0058] Similarly, a second plane 6200 is defined. The second plane 6200 is also a virtual plane and 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 directions of the first water inlet 3210 and the second water outlet 41121 are arranged in the same direction. The first water inlet 3210 projects towards the second plane 6200, and the second water outlet 41121 projects towards the second plane 6200. One of the projections of the first water inlet 3210 and the projection of the second water outlet 41121 is within the range of the other. In this way, the first water inlet 3210 and the second water outlet 41121 are directly opposite to each other. When water flows out from the second water outlet 41121, it can enter the first water inlet 3210 without changing direction, and thus enter the spray arm 2000. In this way, the hydraulic loss of the water flowing from the second water outlet 41121 to the first water inlet 3210 can be reduced.

[0059] It can be understood that one of the projections of the first water outlet 3110 and the projection of the second water inlet 41111 is within the range of the other, and one of the projections of the first water inlet 3210 and the projection of the second water outlet 41121 is within the range of the other, that is, the aforementioned one does not exceed the contour of the aforementioned other. It can be that the aforementioned one is exactly the same size as the aforementioned other and completely covers each other, or it can be that the aforementioned one is within the contour range of the aforementioned other and is at a preset distance from the contour of the aforementioned other, or it can be that the aforementioned one is within the contour range of the aforementioned other and the contour of the aforementioned one is tangent to the contour of the aforementioned other at a certain point.

[0060] Taking the example that the projection of the first water outlet 3110 is within the projection of the second water inlet 41111, it can be that the projections of the first water outlet 3110 and the second water inlet 41111 are exactly the same size and completely cover each other. It can also be that the projection of the first water outlet 3110 is within the contour of the projection of the second water inlet 41111 and is at a preset distance from the contour of the projection of the second water inlet 41111. Or it can be that the projection of the first water outlet 3110 is within the contour of the projection of the second water inlet 41111 and is tangent to the contour of the projection of the second water inlet 41111 at a certain point.

[0061] Through the mutual cooperation of 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 in terms of spatial position, the hydraulic loss when water flows from the first water outlet 3110 to the second water inlet 41111, and when water flows 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 on tableware.

[0062] Combined with Figure 13 、 Figure 15 and Figure 16 As shown, in some embodiments of the present application, the projection of the first water outlet 3110 facing the first plane 6100 is smaller than the projection of the second water inlet 41111 facing 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 not likely to obstruct the water flow, avoiding reducing the resistance to the water flow. Moreover, since the second water inlet 41111 is larger, it is beneficial to convert the kinetic energy of the water flow into potential energy, reducing the energy loss when water flows from the first water outlet 3110 to the second water inlet 41111, and is more conducive to the washing pump 4000 to pressurize the water flow.

[0063] Similarly, combined with Figure 17 、 Figure 19 and Figure 20As shown, 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 that of the second water outlet 41121, when water flows from the second water outlet 41121 to the first water inlet 3210, since the first water inlet 3210 is larger, the edge profile of the first water inlet 3210 is not likely to impede the water flow, thus avoiding reducing the resistance to the water flow. Moreover, the larger first water inlet 3210 is conducive to converting the velocity energy of the water flow into pressure energy, reducing the energy loss when the water flow moves from the second water outlet 41121 to the first water inlet 3210, and is more conducive to transporting the water flow to the spray arm 2000. The second water outlet 41121.

[0064] Combined with Figure 16 As shown, in some embodiments of the present application, the contour of the projection of the first water outlet 3110 and the contour of the projection of the second water inlet 41111 are spaced apart 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 contour of the projection of the first water outlet 3110 being spaced apart by a preset distance from the contour of the projection of the second water inlet 41111 means that the projection of the first water outlet 3110 is within the contour range of the projection of the second water inlet 41111 and is spaced apart by a preset distance from the contour of the projection of the second water inlet 41111. For example, Figure 16 the L1 shown in the figure is the distance between the contour of the projection of the first water outlet 3110 and the contour of the projection of the second water inlet 41111. By setting it in this way, when the water flow moves 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 the flow rate and reducing the resistance.

[0065] Similarly, combined with Figure 20 As shown, the contour of the projection of the first water inlet 3210 and the contour of the projection of the second water outlet 41121 are spaced apart 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 contour of the projection of the first water inlet 3210 being spaced apart by a preset distance from the contour of the projection of the second water outlet 41121 means that the projection of the second water outlet 41121 is within the contour range of the projection of the first water inlet 3210 and is spaced apart by a preset distance from the contour of the projection of the first water inlet 3210. For example, Figure 20 the L2 shown in the figure is the distance between the contour of the projection of the first water inlet 3210 and the contour of the projection of the second water outlet 41121. By setting it in this way, when the water flow moves 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 the flow rate and reducing the resistance.

[0066] Combined with Figure 16 and Figure 20 As shown, in some embodiments of the present application, the first water outlet 3110 is designed to be coaxially arranged 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. Thus, the center of the circle of the first water outlet 3110 is coaxial with the center of the circle of the second water inlet 41111.

[0067] By making the first water outlet 3110 and the second water inlet 41111 coaxial, the positional difference in space between the first water outlet 3110 and the second water inlet 41111 is further reduced, making it more convenient to connect and communicate the first water outlet 3110 and the second water inlet 41111. Moreover, when the projected contour of the first water outlet 3110 is at a preset distance from the projected contour of the second water inlet 41111, the coaxial arrangement of the first water outlet 3110 and the second water inlet 41111 makes the water flow more evenly distributed and the water flow more stable in the circumferential direction around the coaxial axis when the water flows through the first water outlet 3110 and the second water inlet 41111, which is more conducive to the transmission of the water flow.

[0068] Similarly, the first water inlet 3210 is designed to be coaxially arranged 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, the first water inlet 3210 is circular, and the second water outlet 41121 is also circular. Thus, the center of the circle of the first water inlet 3210 is coaxial with the center of the circle of the second water outlet 41121.

[0069] By making the first water inlet 3210 and the second water outlet 41121 coaxial, the positional difference in space between the first water inlet 3210 and the second water outlet 41121 is further reduced, making it more convenient to connect and communicate the first water inlet 3210 and the second water outlet 41121. Moreover, when the projected contour of the second water outlet 41121 is at a preset distance from the projected contour of the first water inlet 3210, the coaxial arrangement of the first water inlet 3210 and the second water outlet 41121 makes the water flow more evenly distributed and the water flow more stable in the circumferential direction around the coaxial axis when the water flows through the second water outlet 41121 and the first water inlet 3210, which is more conducive to the transmission of the water flow.

[0070] Combined with Figures 4 to 10 As shown, in some embodiments of the present application, the first water outlet 3110 is connected and communicated with the second water inlet 41111 through a connecting pipe (such as a deformable pipe like a rubber pipe or a silicone tube), and the first water inlet 3210 is also connected and communicated with the second water outlet 41121 through a connecting pipe.

[0071] It can be understood that the first water outlet 3110 and the second water inlet 41111 can be directly plugged and connected, or indirectly connected through a connecting pipe. Similarly, the first water inlet 3210 and the second water outlet 41121 can be directly plugged and connected, or indirectly connected through an intermediate component.

[0072] Specifically, the first water outlet 3110 is surrounded by the first water outlet joint 3100, the first water inlet 3210 is surrounded by the first water inlet joint 3200, the second water inlet 41111 is surrounded by the second water inlet joint 4111, and the second water outlet 41121 is surrounded by the second water outlet joint 4112. 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 made of a relatively hard material. The insertion of the first water outlet joint 3100 and the second water inlet joint 4111 can be synchronously achieved, but the insertion of the first water inlet joint 3200 and the second water outlet joint 4112 is more difficult. Therefore, 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). This makes it easier to achieve a sealed connection. Moreover, by setting the connecting pipe, the vibration generated by the washing pump 4000 will be blocked / absorbed by the connecting pipe, preventing the vibration from being transmitted to the inner tank 1000 and thus reducing the noise.

[0073] Further, as shown in Figure 6 、 Figure 7 and Figure 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 that extends approximately in a straight line. In this way, when water flows in the first straight pipe 5100, there is no need to change the direction. One end of the first straight pipe 5100 is connected to the first water outlet 3110, and the other end is connected to the second water inlet 41111 (i.e., one end of the first straight pipe 5100 is connected to the first water outlet joint 3100, and the other end is connected to the second water inlet joint 4111). The first water outlet 3110, the first straight pipe 5100, and the second water inlet 41111 are arranged in a straight line. In this way, when water flows through the first water outlet 3110, the first straight pipe 5100, and the second water inlet 41111, there is no need to change the direction, reducing the loss.

[0074] As shown in Figure 9 and Figure 10As shown, the connecting pipe connecting the first water inlet 3210 and the second water outlet 41121 is the second straight pipe 5200. The second straight pipe 5200 is a pipe that extends substantially in a straight line. In this way, when water flows in the second straight pipe 5200, there is no need to change the direction. One end of the second straight pipe 5200 is connected to communicate with the first water inlet 3210, and the other end of the second straight pipe 5200 is connected to communicate with 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 collinearly. In this way, when water flows through the second water outlet 41121, the second straight pipe 5200, and the first water inlet 3210, there is no need to change the direction, reducing losses.

[0075] Combined with Figure 11 and Figure 12 As shown, in some embodiments of the present application, the 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 sucking water flow. The pump housing 4100 is provided with a second water inlet 41111 and a second water outlet 41121. The pump housing 4100 can be processed from plastic materials or other materials. In order to adapt to different installation requirements, the pump housing 4100 can be an integrally formed structure or a split connection structure, and can be a regular shape or an irregular shape. The motor 4200 includes a stator and a rotor. The stator is assembled with the pump housing 4100. The assembly of the stator and the pump housing 4100 can be fixed to each other by screw fastening or other means. The rotor is arranged inside the stator. The centrifugal impeller 4300 is fixed on the rotor and is located in the pump housing 4100. When the washing pump 4000 works, the rotor rotates relative to the stator, and the rotor drives the centrifugal impeller 4300 to rotate, thereby driving the water flow to 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.

[0076] In this embodiment, along the axial direction of the centrifugal impeller 4300, the pump housing 4100 is equally divided into a first half 4110 and a second half 4120. The motor 4200 is assembled to the second half 4120, and the first half 4110 is farther from the motor 4200 relative to the second half 4120. The second water inlet 41111 and the second water outlet 41121 are arranged in the first half 4110. In this way, the distance between the first water outlet 3110 and the second water inlet 41111 is shortened, and the distance between the first water inlet 3210 and the second water outlet 41121 is shortened.

[0077] It can be understood that when the second water inlet 41111 is connected and communicated with the first water outlet 3110, and the second water outlet 41121 is connected and communicated with the first water inlet 3210, the entire washing pump 4000 needs to be close to the structure (such as the water cup 3000 mentioned below) provided with the first water outlet 3110 and the first water inlet 3210. That is, the first half 4110 is closer to the structure provided 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 arranging the second water inlet 41111 and the second water outlet 41121 on the first half 4110, the distance between the first water outlet 3110 and the second water inlet 41111 can be effectively shortened, and the distance between the first water inlet 3210 and the second water outlet 41121 can be shortened. In this way, the frictional resistance of the water flow 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 (the length of the connecting pipe is shortened), and the hydraulic efficiency can be further improved.

[0078] It can be understood that the first half 4110 and the second half 4120 here are not limited to two separate components 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 connected as a split structure.

[0079] Combined with Figure 12 As shown, in some embodiments of the present application, the centrifugal impeller 4300 is coaxially arranged with the second water inlet 41111, that is, the axis of the centrifugal impeller 4300 is coaxial with the axis of the second water inlet 41111. It can be understood that the centrifugal impeller 4300 is axially inlet and radially outlet. Thus, when the water flow 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.

[0080] Combined with Figure 11 and Figure 12 As shown, in some embodiments of the present application, the first half 4110 is provided with an annular flow channel 4113. The end of the annular flow channel 4113 forms the 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 axis of the centrifugal impeller 4300. As mentioned above, the centrifugal impeller 4300 is axially inlet and radially outlet. By designing the annular flow channel 4113, the water flow thrown out from the centrifugal impeller 4300 can be better received and then guided to the second water outlet 41121, reducing the resistance of the water flow to change direction in the washing pump 4000.

[0081] Combined withFigures 1 to 11 As shown, in some embodiments of the present application, the dishwasher includes a water cup 3000, wherein the water cup 3000 is provided with the aforementioned first water outlet 3110 and first water inlet 3210.

[0082] Specifically, the water cup 3000 is installed at the bottom of the inner container 1000. It can be integrally formed with the bottom of the inner container 1000, or the water cup 3000 can be a separate component relative to the bottom of the inner container 1000 and be connected to the bottom of the inner container 1000 through a connecting means. Through the setting of the water cup 3000, water collection and water supply are better realized.

[0083] That is, when washing tableware, a certain amount of water is first introduced into the inner container 1000 to a predetermined water level, which is approximately slightly higher than the bottom of the inner container 1000. At this time, the water cup 3000 is already filled with water. Then, the washing pump 4000 is started, and the washing pump 4000 sucks the water in the water cup 3000. 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 then is conveyed to the spray arm 2000 through the second water outlet 41121 and the first water inlet 3210.

[0084] Combined with Figure 10 As shown, in some embodiments of the present application, the water cup 3000 is provided with a water distribution valve 3300. The water distribution valve 3300 is formed with the aforementioned first water inlet 3210. The water distribution valve 3300 is a component for realizing the diversion of water and controlling the water flow direction according to the actual situation. It can be understood that the spray arm 2000 of the dishwasher is divided into an upper spray arm, a middle spray arm, and a lower spray arm. When the amount of tableware is small, it is not necessary to start all the upper spray arm, middle spray arm, and lower spray arm 2000. For example, only the lower spray arm, or only the middle spray arm, or only the upper spray arm, or only two of the upper spray arm, middle spray arm, and lower spray arm need to be used. Thus, by setting the water distribution valve, the upper spray arm, middle spray arm, and lower spray arm need to be connected to the water distribution valve 3300, and the second water outlet 41121 of the washing pump 4000 is connected to the water distribution valve 3300. In this way, the diversion control of water is realized through the water distribution valve 3300.

[0085] Combined with Figure 3As shown, in some embodiments of the present application, the first water inlet 3210 is disposed above the first water outlet 3110 (above means higher, which can be directly above or obliquely above), and the axial direction of the first water outlet 3110 extends horizontally, and the axial direction of the first water inlet 3210 extends vertically. Since the first water outlet 3110 needs to be directly opposite to the second water inlet 41111, and the first water inlet 3210 also needs to be opposite to the second water outlet 41121. By such an arrangement, the space occupied during the installation of the washing pump 4000 can be reduced. For example, the space can be maximally utilized in the vertical and horizontal directions, which is beneficial to the compactness of the dishwasher. It can be understood that the horizontal direction is generally a horizontal direction, such as Figure 1 and Figure 5 the front-back direction, and the vertical direction can be regarded as generally the up-down direction.

[0086] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made under the concept of the present application by using the content of the specification and drawings of the present application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A dishwasher, characterized in that, Comprising: A first water outlet; A first water inlet; And A 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; Wherein, 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 perpendicular to the axial directions of the second water inlet and the first water outlet, and 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 axial direction of the second water outlet and the axial direction of the first water inlet are arranged in the same direction, a second plane is defined perpendicular to the axial directions of the second water outlet and 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 within the range of the other.

2. The dishwasher according to claim 1, characterized in that, 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, characterized in that 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 claim 1, 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 claim 1, characterized in that, 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 claim 1, 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 claim 1, 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 axial direction 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, 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 claim 1, characterized in that, The dishwasher includes a water cup provided with the first water outlet and the first water inlet.

11. The dishwasher according to claim 10, characterized in that, The water cup is provided with a water distribution valve provided with the first water inlet.

12. The dishwasher according to claim 1 or 10, characterized in that, The axial direction of the first water outlet extends horizontally, the axial direction of the first water inlet extends vertically, and the first water inlet is located above the first water outlet.

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