Dishwasher

Abstract

The utility model provides a kind of dish washer, belong to household appliance technical field.The dish washer includes dish washer body, heating part and hot air drying part, dish washer body includes inner container, the sidewall of inner container is equipped with first air inlet, hot air drying part is communicated with first air inlet, hot air drying part is configured to be used to deliver hot air to inner container, to dry tableware in inner container, heating part includes shell and heating pipe, shell is set to the bottom wall outside of inner container, and shell and the bottom wall of inner container are collectively surrounded with first cavity, heating pipe is set to first cavity, heating pipe is configured to be used to heat the bottom of inner container, realize the evaporation of accelerating the bottom of inner container residual water, to realize the promotion drying efficiency in turn.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a dishwasher. Background Technology

[0002] Early dishwashers mostly used passive drying, which uses the residual heat after washing to dry the dishes. However, this method is inefficient and can easily leave water stains on the dishes. In addition, in the closed or semi-closed environment of the dishwasher, residual water and water vapor in the inner drum components cannot be effectively discharged, which can easily breed bacteria and produce odors.

[0003] To solve the above problems, dishwashers with hot air drying devices have emerged. The hot air drying device has a fan and a heating module inside. The fan draws in outside air, the airflow is heated when it passes through the heating module, and finally blows into the inner tub through the air inlet on the side wall of the dishwasher, thereby drying the tableware.

[0004] When a dishwasher completes its drying program, it often only dries the dishes, leaving the bottom of the dishwasher drum undried, resulting in incomplete drying. Drying the bottom of the drum requires extending the drying time, leading to low drying efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a dishwasher that solves the problem of low drying efficiency in existing dishwashers and improves drying efficiency.

[0006] To achieve the objective of this utility model, the following technical solution is adopted: According to one aspect of the present invention, a dishwasher is provided, comprising a dishwasher body, a heating unit, and a hot air drying unit. The dishwasher body includes an inner tub, and a first air inlet is provided on the side wall of the inner tub. The heating unit includes a housing and a heating tube. The housing is disposed on the outer side of the bottom wall of the inner tub, and the housing and the bottom wall of the inner tub together form a first cavity. The heating tube is disposed in the first cavity and is configured to heat the bottom of the inner tub. The hot air drying unit is connected to the first air inlet and is configured to deliver hot air into the inner tub.

[0007] According to one embodiment of the present invention, the outer shell is provided with a second air inlet and a first air outlet, the hot air drying section includes an air duct and a fan disposed in the air duct, the air intake of the air duct is connected to the first air outlet, and the air outlet of the air duct is connected to the first air inlet.

[0008] According to one embodiment of the present invention, a heat insulation layer is provided on the inner wall surface of the outer shell, and the heat insulation layer is configured to prevent the heat inside the first cavity from being conducted to the outside.

[0009] According to one embodiment of the present invention, the first air inlet is located at the rear of the side wall of the inner liner, the air duct includes a first air guide channel and a second air guide channel, the lower end of the first air guide channel is connected to the first air outlet, the first air guide channel extends from the lower end to the upper end towards the front of the side wall of the inner liner, the front end of the second air guide channel is connected to the upper end of the first air guide channel, the rear end of the second air guide channel is connected to the first air inlet, and the fan is located at the lower end of the first air guide channel.

[0010] According to one embodiment of the present invention, a water baffle valve is also included. The water baffle valve is disposed in the second air guide channel. The water baffle valve is configured to allow hot air to be delivered into the inner tank, and the water in the inner tank cannot flow back towards the fan through the water baffle valve.

[0011] According to one embodiment of the present invention, the second air guide channel is provided with a water outlet at the bottom between the water baffle valve and the first air inlet, and the water outlet is configured to discharge water.

[0012] According to one embodiment of the present invention, a third air inlet is provided at the front of the side wall of the inner liner, and the air duct also includes a third air guide channel. One end of the third air guide channel is connected to the second air guide channel, and the other end of the third air guide channel is connected to the third air inlet.

[0013] According to one embodiment of the present invention, the third air inlet is higher than the first air inlet, and the first air guide channel, the second air guide channel and the third air guide channel together form a Z shape.

[0014] According to one embodiment of the present invention, the upper end of the third air guide channel is provided with a downward bend, and the third air guide channel is connected to the third air inlet through the bend.

[0015] According to one embodiment of the present invention, the outer shell includes a base plate, a first side wall fixed to one end of the base plate, a second side wall fixed to the other end of the base plate, a bracket, a plurality of first screws and a plurality of second screws, a heating tube is disposed on the bracket, the bracket is fixed to the base plate by the first screws, and both the first side wall and the second side wall are provided with outward flanges, which are fixed to the bottom wall of the inner liner by the second screws.

[0016] One embodiment of this utility model has the following advantages or beneficial effects: This utility model discloses a dishwasher, comprising a dishwasher body, a heating unit, and a hot air drying unit. The dishwasher body includes an inner tub with a first air inlet on its side wall. The hot air drying unit communicates with the first air inlet and is configured to deliver hot air into the inner tub to dry the tableware inside. The heating unit includes a shell and a heating tube. The shell is disposed on the outside of the bottom wall of the inner tub, and the shell and the bottom wall of the inner tub together form a first cavity. The heating tube is disposed in the first cavity and is configured to heat the bottom of the inner tub to accelerate the evaporation of residual water at the bottom of the inner tub, thereby improving drying efficiency. Attached Figure Description

[0017] The above and other features and advantages of this invention will become more apparent from a detailed description of exemplary embodiments with reference to the accompanying drawings.

[0018] Figure 1 This is a perspective view of a dishwasher according to an exemplary embodiment.

[0019] Figure 2 This is a schematic diagram showing the housing of the heating section connected to the hot air drying section according to an exemplary embodiment.

[0020] Figure 3 This is a split view of a hot air drying section according to an exemplary embodiment.

[0021] Figure 4 This is a split view of the heating element according to an exemplary embodiment.

[0022] Figure 5 This is a schematic diagram of the structure of a water-blocking valve according to an exemplary embodiment.

[0023] The reference numerals in the attached figures are explained as follows: 1. Inner liner; 11. First air inlet; 12. Third air inlet; 2. Heating unit; 21. Outer shell; 211. Second air inlet; 212. First air outlet; 213. Insulation layer; 214. Base plate; 215. First side wall; 2151. Outer flange; 216. Second side wall; 217. Bracket; 22. Heating tube; 3. Hot air drying unit; 31. Air duct; 311. First air guide channel; 3111. Fourth air inlet; 312. Second air guide channel; 3121. Water outlet; 3122. Second air outlet; 3123. Mounting shaft; 3124. Limiting protrusion; 313. Third air guide channel; 3131. Bending part; 3132. Third air outlet; 32. Fan; 4. Water baffle valve; 5. Connector; 51. First connecting part; 52. Second connecting part. Detailed Implementation

[0024] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0025] The terms “a,” “one,” “the,” and “the” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended meaning of inclusion and that other elements / components / etc. may exist in addition to the listed elements / components / etc.

[0026] like Figure 1-5 As shown in the figure, a dishwasher according to an embodiment of the present invention includes a dishwasher body, a heating unit 2 and a hot air drying unit 3.

[0027] The dishwasher body includes an outer shell and an inner tub 1. The inner tub 1 has a first air inlet 11 on its side wall and an exhaust duct on its top.

[0028] The heating part 2 includes a shell 21 and a heating tube 22. The shell 21 is disposed on the outer side of the bottom wall of the inner liner 1, and the shell 21 and the bottom wall of the inner liner 1 together form a first cavity. The heating tube 22 is disposed in the first cavity.

[0029] The hot air drying unit 3 is connected to the first air inlet 11. The hot air drying unit 3 is configured to deliver hot air into the inner liner 1 to dry the tableware inside the inner liner 1. The heating tube 22 is configured to heat the bottom of the inner liner 1 to accelerate the evaporation of residual water at the bottom of the inner liner 1, thereby improving the drying efficiency.

[0030] In a preferred embodiment of this invention, a temperature sensor is installed in the first chamber. During the drying process, the heating element 22 is turned on, and the temperature in the first chamber is controlled between 50 and 200 degrees Celsius. The heating element 22 is turned on for 1 to 10 minutes. The higher the temperature in the first chamber, the shorter the time the heating element 22 is turned on.

[0031] like Figure 2 As shown, in a preferred embodiment of the present invention, the outer shell 21 is provided with a second air inlet 211 and a first air outlet 212, the hot air drying part 3 includes an air duct 31 and a fan 32 disposed in the air duct 31, the air intake of the air duct 31 is connected to the first air outlet 212, and the air supply of the air duct 31 is connected to the first air inlet 11.

[0032] The heating element 22 and the fan 32 are turned on. The heating element 22 heats the first cavity, and the fan 32 draws in external air through the second air inlet 211. The air forms hot air in the first cavity, and the fan 32 blows the hot air into the inner liner 1 through the air duct 31 and the first air inlet 11 to dry the tableware.

[0033] Of course, the heat source for heating the incoming air in the hot air drying section 3 is not limited to the heating section 2. For example, the air inlet of the air duct 31 is not connected to the first cavity, and a separate heating device is installed in the air duct 31. Those skilled in the art can choose the method of heating the incoming air according to actual needs.

[0034] like Figure 2 , 4 As shown, in a preferred embodiment of this utility model, a heat insulation layer 213 is provided on the inner wall surface of the outer shell 21. The heat insulation layer 213 is configured to prevent heat conduction from the first cavity to the outside, prevent the heating energy from dissipating from the bottom, and reduce energy loss. For example, the material of the heat insulation layer 213 is heat insulation cotton.

[0035] like Figure 1-3 As shown, in a preferred embodiment of this utility model, the first air inlet 11 is located at the rear of the side wall of the inner liner 1. The air duct 31 includes a first air guide channel 311 and a second air guide channel 312. The lower end of the first air guide channel 311 is connected to the first air outlet 212. The first air guide channel 311 extends from the lower end to the upper end towards the front of the side wall of the inner liner 1. The front end of the second air guide channel 312 is connected to the upper end of the first air guide channel 311. The rear end of the second air guide channel 312 is connected to the first air inlet 11. The fan 32 is located at the lower end of the first air guide channel 311, away from the first air inlet 11, to prevent water from flowing into the fan 32 through the first air inlet 11 when washing tableware.

[0036] like Figure 2 , 3 As shown, the first air guide channel 311 and the second air guide channel 312 are both V-shaped, and both the first air guide channel 311 and the second air guide channel 312 are formed by two half-shells fastened together. The lower end of the first air guide channel 311 is provided with a fourth air inlet 3111, and the fan 32 is located at the fourth air inlet 3111, with the exhaust port of the fan 32 opposite to the fourth air inlet 3111. The fourth air inlet 3111 is connected to the first air outlet 212. The rear end of the second air guide channel 312 is provided with a second air outlet 3122, which is connected to the first air inlet 11. The fan 32 draws hot air from the first cavity through the fourth air inlet 3111 and sends it to the inner liner 1 through the second air outlet 3122 and the first air inlet 11.

[0037] like Figure 3 , 5As shown, in a preferred embodiment of the present invention, a water baffle valve 4 is also included. The water baffle valve 4 is disposed in the second air guide channel 312. The water baffle valve 4 is configured to allow hot air to be delivered into the inner tank 1, and the water in the inner tank 1 cannot flow back towards the fan 32 through the water baffle valve 4.

[0038] For example, the inner wall of the second air guide channel 312 is provided with an installation shaft 3123 and a limiting protrusion 3124, with the installation shaft 3123 located above the limiting protrusion 3124. The water baffle valve 4 is plate-shaped, and a shaft hole is opened at the upper end of the water baffle valve 4. The water baffle valve 4 can be movably connected to the installation shaft 3123 through the shaft hole. When the fan 32 and the heating pipe 22 are turned on, the hot air blows the water baffle valve 4 counterclockwise, allowing the hot air to pass through and blowing the hot air into the inner liner 1. When the fan 32 and the heating pipe 22 are turned off, the water baffle valve 4 rotates clockwise under the action of gravity until one side of the water baffle valve 4 abuts against the limiting protrusion 3124 to block the second air guide channel 312 and achieve water blocking.

[0039] like Figure 1 , 3 As shown in Figures 5 and 6, in a preferred embodiment of this utility model, the second air guide channel 312 is provided with a water outlet 3121 at its bottom between the water baffle valve 4 and the first air inlet 11. The water outlet 3121 is configured to discharge water and prevent water from accumulating and flowing back. For example, the water outlet 3121 is connected to the drain channel of the dishwasher cup through a water pipe.

[0040] like Figure 1-3 As shown, in a preferred embodiment of the present invention, a third air inlet 12 is provided at the front of the side wall of the inner liner 1, and the air duct 31 also includes a third air guide channel 313. One end of the third air guide channel 313 is connected to the second air guide channel 312, and the other end of the third air guide channel 313 is connected to the third air inlet 12. For example, the other end of the third air guide channel 313 is provided with a third air outlet 3132 corresponding to the third air inlet 12, and the third air outlet 3132 is connected to the third air inlet 12.

[0041] When the fan 32 and the heating tube 22 are turned on, hot air enters the inner liner 1 through the third air guide channel 313, the third air outlet 3132 and the third air inlet 12.

[0042] By delivering hot air into the inner liner 1 through the first air inlet 11 at the rear and the third air inlet 12 at the front, uniform air intake is achieved, improving drying efficiency.

[0043] like Figure 1-3As shown, in a preferred embodiment of this utility model, the third air inlet 12 is higher than the first air inlet 11, and the first air guide channel 311, the second air guide channel 312 and the third air guide channel 313 are Z-shaped together to improve the uniformity of drying the front tableware, the rear tableware, the upper tableware and the lower tableware.

[0044] like Figure 1-3 As shown, in a preferred embodiment of the present invention, the upper end of the third air guide channel 313 is provided with a downward bend 3131, and the third air outlet 3132 is located at the bend 3131, so as to prevent water from flowing directly downward through the third air outlet 3132.

[0045] like Figure 2 , 4 As shown, in a preferred embodiment of the present invention, the outer shell 21 includes a base plate 214, a first side wall 215 fixed to one end of the base plate 214, a second side wall 216 fixed to the other end of the base plate 214, a bracket 217, a plurality of first screws and a plurality of second screws.

[0046] The heating element 22 is mounted on the bracket 217, which is fixed to the base plate 214 by the first screw. The first side wall 215 and the second side wall 216 are both provided with an outward flange 2151, which is fixed to the bottom wall of the inner liner 1 by the second screw.

[0047] In a preferred embodiment of this utility model, the heat insulation layer 213 is plate-shaped and disposed between the heating tube 22 and the bottom plate 214. Of course, the heat insulation layer 213 is not limited to being plate-shaped. The shape of the heat insulation layer 213 can also be adapted to the shape of the inner wall of the outer shell 21. For example, the heat insulation layer 213 has a U-shaped cross-section, and the first cavity is formed by the heat insulation layer 213 and the bottom wall of the inner liner 1.

[0048] like Figure 2 , 3 As shown, in a preferred embodiment of this utility model, a connector 5 is further included. The connector 5 includes a first connecting part 51 adapted to the fourth air inlet 3111 and a second connecting part 52 adapted to the first air outlet 212. The first connecting part 51 and the second connecting part 52 are connected. The first connecting part 51 is inserted into and connected to the fourth air inlet 3111, and the second connecting part 52 is inserted into and connected to the first air outlet 212, thereby realizing the connection between the outer shell 21 and the air duct 31.

[0049] Both the outer shell 21 and the heating tube 22 are any one of the following shapes: strip, L-shape, U-shape, and ring. Among them, the L-shape, U-shape, and ring shape have the advantage of having a larger heating surface compared to the strip shape.

[0050] In this embodiment of the invention, the term "multiple" refers to two or more, unless otherwise explicitly defined. The terms "install," "connect," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention based on the specific circumstances.

[0051] In the description of the embodiments of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0052] In this specification, the terms "an embodiment," "a preferred embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dishwasher, characterized in that, include: The dishwasher body includes an inner tub (1) and a first air inlet (11) is provided on the side wall of the inner tub (1). The heating element (2) includes a housing (21) and a heating tube (22). The housing (21) is disposed on the outer side of the bottom wall of the inner liner (1), and the housing (21) and the bottom wall of the inner liner (1) together form a first cavity. The heating tube (22) is disposed in the first cavity and is configured to heat the bottom of the inner liner (1). Hot air drying unit (3) is connected to the first air inlet (11) and is configured to deliver hot air into the inner liner (1).

2. The dishwasher according to claim 1, characterized in that, The outer casing (21) is provided with a second air inlet (211) and a first air outlet (212). The hot air drying unit (3) includes an air duct (31) and a fan (32) disposed in the air duct (31). The air intake of the air duct (31) is connected to the first air outlet (212), and the air outlet of the air duct (31) is connected to the first air inlet (11).

3. The dishwasher according to claim 2, characterized in that, The inner wall of the outer shell (21) is provided with a heat insulation layer (213), which is configured to prevent the heat inside the first cavity from being conducted to the outside.

4. The dishwasher according to claim 2, characterized in that, The first air inlet (11) is located at the rear of the side wall of the inner liner (1). The air duct (31) includes a first air guide channel (311) and a second air guide channel (312). The lower end of the first air guide channel (311) is connected to the first air outlet (212). The first air guide channel (311) extends from the lower end to the upper end towards the front of the side wall of the inner liner (1). The front end of the second air guide channel (312) is connected to the upper end of the first air guide channel (311). The rear end of the second air guide channel (312) is connected to the first air inlet (11). The fan (32) is located at the lower end of the first air guide channel (311).

5. The dishwasher according to claim 4, characterized in that, It also includes a water baffle valve (4), which is disposed in the second air guide channel (312). The water baffle valve (4) is configured to allow hot air to be delivered into the inner tank (1), and the water in the inner tank (1) cannot flow back towards the fan (32) through the water baffle valve (4).

6. The dishwasher according to claim 5, characterized in that, The second air guide channel (312) is located at the bottom between the water baffle valve (4) and the first air inlet (11) and is provided with a water outlet (3121), which is configured to discharge water.

7. The dishwasher according to claim 4, characterized in that, The inner liner (1) has a third air inlet (12) on the front side wall. The air duct (31) also includes a third air guide channel (313). One end of the third air guide channel (313) is connected to the second air guide channel (312), and the other end of the third air guide channel (313) is connected to the third air inlet (12).

8. The dishwasher according to claim 7, characterized in that, The third air inlet (12) is higher than the first air inlet (11), and the first air guide channel (311), the second air guide channel (312) and the third air guide channel (313) are Z-shaped together.

9. The dishwasher according to claim 8, characterized in that, The upper end of the third air guide channel (313) is provided with a downward bend (3131), and the third air guide channel (313) is connected to the third air inlet (12) through the bend (3131).

10. The dishwasher according to any one of claims 1-9, characterized in that, The outer shell (21) includes a base plate (214), a first side wall (215) fixed to one end of the base plate (214), a second side wall (216) fixed to the other end of the base plate (214), a bracket (217), a plurality of first screws and a plurality of second screws. The heating tube (22) is disposed on the bracket (217). The bracket (217) is fixed to the base plate (214) by the first screws. The first side wall (215) and the second side wall (216) are both provided with an outward flange (2151). The outward flange (2151) is fixed to the bottom wall of the inner liner (1) by the second screws.

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