Inner container ventilation drying system of dish washing machine
By installing a drying system on the dishwasher door, utilizing the door space to design a condenser duct and employing a PTC heating element, the problem of poor drying effect caused by space limitations is solved, achieving more efficient air circulation drying.
Patent Information
- Application Number
- CN202422917100.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing dishwashers have drying systems with limited space, resulting in insufficient condenser air ducts that affect drying performance.
The drying system is installed on the door body, and a condensation air duct is set up in the internal space of the door body. A PTC heating element and a fan are used for air circulation drying. The condensate is collected through the return water port to avoid additional openings.
This improves the drying effect, ensures sufficient distance in the condenser duct, avoids structural limitations, and increases drying efficiency.
Smart Images
Figure CN223529409U_ABST
Abstract
Description
[Technical Field]
[0001] This utility model relates to a ventilation and drying system for the inner tank of a dishwasher. [Background Technology]
[0002] Dishwashers are popular household appliances that automatically wash and dry dishes. After each wash, the inner drum and the surface of the dishes retain a significant amount of moisture. Drying solves this problem and effectively prevents bacterial growth. However, currently available models have their drying systems mounted on the inner drum wall. This design limitation, caused by the space between the inner drum and the dishwasher's outer shell, results in a small condensation air duct that negatively impacts drying efficiency.
[0003] Therefore, it is necessary to make further improvements. [Utility Model Content]
[0004] The purpose of this invention is to overcome the above-mentioned problems. We provide a ventilated drying system for the inner drum of a dishwasher, which is configured on the door, making full use of the internal space of the door and solving the problem of poor drying effect.
[0005] To achieve the above objectives, this utility model provides a ventilated drying system for the inner liner of a dishwasher, including an inner liner and a door. The door is used to seal the front opening of the inner liner. The door is provided with a condenser shell, an air inlet shell, a heating element, and a fan. The inner side wall of the door is provided with an air inlet and an air outlet corresponding to the inside of the inner liner. The condenser shell has a meandering condenser air duct inside. The inlet of the condenser shell is connected to the air inlet. The fan is provided on the outlet of the condenser shell. The output end of the fan is connected to the input end of the air inlet shell. The output end of the air inlet shell is connected to the air outlet. The heating element is located inside the air inlet shell.
[0006] In one or more embodiments, the condenser duct is arranged in a detour from top to bottom, the outlet of the condenser shell is located at the lowest end of the horizontal height of the condenser duct, and the condenser shell is provided with a return water port at the lowest end, which is connected to the inside of the inner tank.
[0007] In one or more embodiments, the return water inlet is connected to the output end of the air inlet casing via a return water pipe.
[0008] In one or more embodiments, the heating element is a PTC heating element.
[0009] In one or more embodiments, the air inlet housing includes a bottom housing and a front housing, the front housing and the bottom housing are detachably connected, and the bottom housing is fixed to the door body.
[0010] In one or more embodiments, the inner liner is provided with an air inlet assembly and an air outlet assembly. The air inlet assembly can send outside air into the inner liner, and the air outlet assembly can extract air from the inner liner to the outside.
[0011] In one or more embodiments, the air inlet assembly and the air outlet assembly are respectively disposed on two opposite side walls of the inner liner.
[0012] Compared with the prior art, the present invention has the following advantages: by setting the drying system on the door, the internal space of the door is fully utilized, the structure of the drying system is no longer restricted, and it has a condensation air duct with sufficient distance, thereby improving the drying effect of the drying system. [Attached Image Description]
[0013] Figure 1 This is a schematic diagram of the drying system installed on the door in this embodiment;
[0014] Figure 2 This is an exploded view of the drying system implemented in this system.
Detailed Implementation Methods
[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0016] See appendix Figure 1-2 This application provides a ventilated drying system for the inner drum of a dishwasher, including an inner drum 1 and a door 2. The door is used to seal the front opening of the inner drum. The door 2 is provided with a condenser shell 3, an air inlet shell 4, a heating element 5, and a fan 6. The inner side wall of the door is provided with an air inlet 7 and an air outlet 8 corresponding to the inside of the inner drum. The condenser shell has a meandering condenser air duct 9 inside. The inlet of the condenser shell is connected to the air inlet, and the fan is provided on the outlet of the condenser shell. The output end of the fan is connected to the input end of the air inlet shell, and the output end of the air inlet shell is connected to the air outlet. The heating element 5 is located inside the air inlet shell 4. The fan draws air from the inner drum into the condenser shell from the air inlet, where it is condensed, achieving initial drying of the air in the inner drum. After the fan has been working for a period of time, i.e., when the air humidity inside the dishwasher drops below the saturation concentration, the heating element is activated to send hot air into the inner drum for further drying. By placing the drying system on the door, the internal space of the door is fully utilized, ensuring that the condenser duct has a certain condensation distance, thus improving the condensation effect. At the same time, the structure of the drying system is no longer limited by the space between the inner tub and the dishwasher outer shell.
[0017] The condensing air duct 9 is arranged in a detour from top to bottom. The outlet of the condensing air shell is located at the lowest point of the horizontal height of the condensing air duct, so that the water generated in the condensing air duct can be collected at the outlet. The condensing air shell 3 is provided with a water return port 10 at the lowest point. The water return port is connected to the inside of the inner tank 1, so that the condensed water can enter the inner tank of the dishwasher and be collected by the water cup.
[0018] The return water inlet 10 is connected to the output end of the air inlet shell 4 through the return water pipe 11, which leads the condensate to the air inlet shell and then flows into the inner liner through the air inlet shell, thus avoiding the need to open another drainage hole on the door.
[0019] In this embodiment, the heating element 5 is a PTC heating element. The PTC heating element is made of ceramic heating element and aluminum structural parts. It has the advantages of low thermal resistance and high heat exchange efficiency, and is very suitable for use in the heating element type of this solution.
[0020] The air inlet housing 4 includes a bottom housing 41 and a front housing 42. The front housing and the bottom housing are detachably connected. The bottom housing 41 is fixed to the door body for easy maintenance. When the heating element is damaged and needs to be replaced, only the front housing can be removed for replacement or repair.
[0021] The inner liner 1 is provided with an air inlet assembly 12 and an air outlet assembly 13. The air inlet assembly can send outside air into the inner liner, and the air outlet assembly can draw the air out of the inner liner to the outside. The air inlet assembly and the air outlet assembly can realize the external circulation of the internal air of the inner liner. During the later drying process, it can accelerate the reduction of the humidity inside the inner liner. In order to improve the convection effect and air circulation speed, the air inlet assembly 12 and the air outlet assembly 13 are respectively located on two opposite side walls of the inner liner 1.
[0022] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.
Claims
1. A dishwasher inner tub ventilation and drying system, comprising an inner tub (1) and a door (2), the door being used to seal the front opening of the inner tub, characterized in that: The door body (2) is provided with a condenser shell (3), an air inlet shell (4), a heating element (5) and a fan (6). The inner side wall of the door body is provided with an air inlet (7) and an air outlet (8) corresponding to the inner liner. The condenser shell has a meandering condenser air duct (9) inside. The inlet of the condenser shell is connected to the air inlet. The fan is provided on the outlet of the condenser shell. The output end of the fan is connected to the input end of the air inlet shell. The output end of the air inlet shell is connected to the air outlet. The heating element (5) is located inside the air inlet shell (4).
2. The inner drum ventilation and drying system of a dishwasher according to claim 1, characterized in that: The condenser duct (9) is arranged in a meandering manner from top to bottom. The outlet of the condenser shell is located at the lowest end of the horizontal height of the condenser duct. The condenser shell (3) is provided with a return water inlet (10) at the lowest end, and the return water inlet is connected to the inside of the inner liner (1).
3. The inner drum ventilation and drying system of a dishwasher according to claim 2, characterized in that: The return water inlet (10) is connected to the output end of the air inlet casing (4) via the return water pipe (11).
4. The inner drum ventilation and drying system of a dishwasher according to claim 1, characterized in that: The heating element (5) is a PTC heating element.
5. The inner drum ventilation and drying system of a dishwasher according to claim 1, characterized in that: The air intake casing (4) includes a bottom casing (41) and a front casing (42). The front casing and the bottom casing are detachably connected, and the bottom casing (41) is fixed to the door body.
6. The inner drum ventilation and drying system of a dishwasher according to any one of claims 1-5, characterized in that: The inner liner (1) is provided with an air inlet assembly (12) and an air outlet assembly (13). The air inlet assembly can send outside air into the inner liner, and the air outlet assembly can extract the air from the inner liner to the outside.
7. The inner drum ventilation and drying system of a dishwasher according to claim 6, characterized in that: The air inlet assembly (12) and the air outlet assembly (13) are respectively located on the two opposite side walls of the inner liner (1).