Hot air mechanism of dish washing machine

Abstract

The utility model relates to the technical field of dish washing machines, in particular to a hot air mechanism of a dish washing machine, the hot air mechanism of the dish washing machine comprises an air inlet assembly and an air supply outlet, a circulation channel is arranged between the air inlet assembly and the air supply outlet, the circulation channel comprises a first channel and a second channel, and the air inlet assembly comprises a fan and an air inlet channel; the air inlet channel is communicated with the first channel and the second channel, a heating assembly is arranged in the first channel and used for heating air in the first channel, a plasma generator is arranged in the second channel, and the air supply outlet is communicated with an inner container of the dish washing machine. The air of the first channel and the air of the second channel enter the inner container through the air supply outlet, the heating assembly and the plasma generator are arranged in different channels, the large operation space is achieved during maintenance, and convenience and rapidness are achieved. The hot air mechanism is simple in structure and capable of feeding hot air and positive and negative ions into the inner container at the same time to dry and disinfect tableware in the inner container.

Description

Technical Field

[0001] The present disclosure relates to the technical field of dishwashers, and in particular to a hot air mechanism of a dishwasher. Background Art

[0002] With the development of science and technology and the improvement of living standards, especially the rapid development of home appliance technology, there are special dishwashing equipment for tableware cleaning. The working principle of a dishwasher is generally to fill water into the machine body, heat it, add detergent, and then use the washing pump to pump water into the spray pipe for washing. After washing, the water is discharged through the drainage pump. The dishwasher can automatically complete a series of cleaning tasks according to the user's settings. It is easy to use and fully automated, which effectively reduces the user's operation. Therefore, dishwashers are becoming more and more popular in thousands of households and are deeply loved by the majority of users.

[0003] In order to prevent bacteria from growing inside the dishwasher after draining, the inside of the dishwasher needs to be dried. There are many drying modes, such as condensation drying, heat exchange drying, hot air machine drying, crystal bud drying, etc. The principle of using a hot air machine to dry is to set up an air duct, and set a heating component in the air duct. After the air is passed through the heating component by the fan, it is sent into the dishwasher for air drying.

[0004] At present, most dishwashers on the market still use traditional condensation drying, which has the following defects: when the dishwasher finishes washing, the inner tank absorbs heat and stores a large amount of water droplets. If it is not opened for a long time, the temperature drops and the water droplets fall back, causing the tableware to mold. In order to solve this technical problem, businesses have begun to try to use plasma hot air drying technology. However, the existing dishwashers that use plasma hot air drying have a relatively complex structure, which brings certain inconveniences to subsequent maintenance. Utility Model Content

[0005] In view of the deficiencies and problems in the prior art, the present invention provides a hot air mechanism for a dishwasher, which has a simple structure and has good drying and sterilization effects.

[0006] The technical solution adopted by the present disclosure to solve the above technical problems is: a hot air mechanism of a dishwasher, including an air inlet component and an air supply port, a circulation channel is arranged between the air inlet component and the air supply port, the circulation channel includes a first channel and a second channel, the air inlet component includes a fan and an air inlet channel, the air inlet channel is communicated with the first channel and the second channel respectively, a heating component is arranged in the first channel, the heating component is used to heat the air in the first channel, a plasma generator is arranged in the second channel, the air supply port is communicated with the inner tank of the dishwasher, and the air in the first channel and the air in the second channel enter the inner tank through the air supply port.

[0007] As a preferred embodiment, a block is provided between the second channel and the air supply port.

[0008] As a preferred embodiment, a first housing is provided at the air outlet, and a first gap is provided between the upper edge of the stopper and the upper wall of the first housing.

[0009] As a preferred embodiment, the flow channel is enclosed by a first rib and a second rib. The first ends of the first rib and the second rib are both connected to the air inlet assembly, and the second ends of the first rib and the second rib are both connected to the air outlet. A third rib is provided between the first rib and the second rib, and the third rib divides the flow channel into a first channel and a second channel.

[0010] As a preferred embodiment, arc-shaped structures are respectively provided at the ends of the second rib and the third rib close to the air outlet.

[0011] As a preferred embodiment, at least one opening groove is provided on the third rib, the opening groove is arranged close to the heating assembly, and the flow channel communicates with the second channel through the opening groove.

[0012] As a preferred embodiment, a check valve is provided in the first channel, the check valve is arranged between the heating assembly and the air outlet, and after the check valve is opened, the first channel communicates with the air outlet.

[0013] As a preferred embodiment, the check valve is a working rod, a connecting shaft is provided on the third rib, and one end of the working rod is hinged to the connecting shaft.

[0014] As a preferred embodiment, the diameter of the first channel is larger than that of the second channel. An air inlet is provided in the air inlet channel, the air inlet is directly opposite to the first channel, and the third rib is arranged on the side of the air inlet.

[0015] As a preferred embodiment, a second gap is provided between the third rib and the heating assembly, and a safety monitoring assembly is provided in the second gap.

[0016] As a preferred embodiment, the fan is a centrifugal fan.

[0017] As a preferred embodiment, the heating assembly is a PTC heater.

[0018] Compared with the existing products, since a heating assembly is provided in the first channel, the heating assembly is used to heat the air in the first channel, a plasma generator is provided in the second channel, the air outlet is communicated with the inner cavity of the dishwasher, and the air in the first channel and the air in the second channel enter the inner cavity from the air outlet. The operations of the two do not interfere with each other. The heating assembly and the plasma generator are arranged in different channels, and there is a large operating space during maintenance, which is convenient and fast; the hot air mechanism has a simple structure and can simultaneously send hot air and positive and negative ions into the inner cavity to dry and disinfect the tableware in the inner cavity. Description of the Drawings

[0019] The present application will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present application. In addition, unless otherwise specified, the drawings only schematically show the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0020] Figure 1 is a schematic structural diagram of a hot air mechanism of a dishwasher according to the present disclosure;

[0021] Figure 2 is one of the schematic structural diagrams of the hot air mechanism installed on the dishwasher according to the present disclosure;

[0022] Figure 3 is the present disclosure Figure 2 a partial enlarged view of part A therein;

[0023] Figure 4 is another schematic structural diagram of the hot air mechanism installed on the dishwasher according to the present disclosure;

[0024] Figure 5 is the present disclosure Figure 4 a partial enlarged view of part B therein.

[0025] Explanation of reference numerals:

[0026] 1. Air inlet assembly; 2. Air outlet; 3. First channel; 4. Second channel; 5. Heating assembly; 6. Plasma generator; 7. First rib; 8. Second rib; 9. Third rib; 10. Check valve; 11. Safety monitoring assembly; 12. Opening groove; 13. Block; 14. Air inlet; 15. First housing. Detailed implementation manners

[0027] In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure will be described in detail, clearly and completely below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not used to limit the present disclosure.

[0028] Those skilled in the art should understand that in the disclosure of this utility model, the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0029] Please refer to, as Figures 1 to 2 shown, a hot air mechanism of a dishwasher. The hot air mechanism is arranged on the side of the dishwasher and includes an air inlet assembly 1 and an air outlet 2. The air outlet 2 is communicated with the inner liner of the dishwasher. A flow channel is arranged between the air inlet assembly 1 and the air outlet 2. The flow channel includes a first channel 3 and a second channel 4. The air inlet assembly 1 includes a centrifugal fan and an air inlet channel. The centrifugal fan sucks in the outside air and forms air flow under its action to enter the air inlet channel, and then enters the flow channel. The air inlet channel is respectively communicated with the first channel 3 and the second channel 4. A heating assembly 5 is arranged in the first channel 3. The heating assembly 5 is a PTC heater. The heating assembly 5 is used to heat the air in the first channel 3. A plasma generator 6 is arranged in the second channel 4. The air in the first channel 3 and the air in the second channel 4 enter the inner liner through the air outlet 2. After the air enters the first channel 3, it is heated by the heating assembly 5 and enters the inner liner of the dishwasher through the air outlet 2 to perform high-temperature drying on the tableware in the inner liner of the dishwasher; after the air enters the second channel 4, positive and negative ions are formed under the action of the plasma generator 6. These positive and negative ions enter the air outlet 2 from the second channel 4 and finally enter the inner liner of the dishwasher to disinfect the tableware in the inner liner of the dishwasher. The heating assembly 5 and the plasma generator 6 are arranged in different channels, which provides a relatively large operating space during maintenance and is convenient for later maintenance.

[0030] Further, the circulation channel is formed by enclosing the first rib 7 and the second rib 8. The first ends of the first rib 7 and the second rib 8 are both connected to the air inlet channel, and the second ends of the first rib 7 and the second rib 8 are both connected to the air outlet 2. A third rib 9 is arranged between the first rib 7 and the second rib 8, and the third rib 9 divides the circulation channel into a first channel 3 and a second channel 4. Specifically, the first channel 3 is formed between the first rib 7 and the third rib 9, and the second channel 4 is formed between the second rib 8 and the third rib 9. The diameter of the first channel 3 is larger than that of the second channel 4. The larger diameter of the first channel 3 than that of the second channel 4 ensures the supply of hot air in the dishwasher, so that the tableware can be efficiently dried. A baffle 13 is arranged between the second rib 8 and the third rib 9, and the baffle 13 connects the second rib 8 and the third rib 9. The baffle 13 is arranged at a position close to the air outlet 2. The air outlet 2 is provided with a first housing 15, and a first gap is arranged between the upper edge of the baffle 13 and the upper wall of the first housing 15. The baffle 13 is arranged in the second channel 4 and has a blocking effect on the passing positive and negative ion gas, so that the gas about to reach the air outlet 2 is turned back to the plasma generator 6. This is because, under the action of the centrifugal fan, the speed of the gas is relatively fast when it just enters the second channel 4, and some gases may enter the air outlet 2 before having time to act with the plasma generator 6. In this way, the concentration of positive and negative ions is relatively low, and the sterilization effect cannot be achieved. The baffle 13 arranged at the end of the second channel 4 allows a small part of the gas to enter the air outlet 2 through the first gap and then enter the inner container. The baffle 13 causes most of the rapidly flowing gas to turn back to the ion generator again. Under the action of the plasma generator 6, a sufficient amount of positive and negative ions are generated, so that the concentration of positive and negative ions entering the inner container of the dishwasher is high enough to ensure the sterilization effect.

[0031] Please refer to Figures 2 to 5As shown, in an embodiment of the present disclosure, an air inlet 14 is provided in the air inlet passage. The air inlet 14 faces the first passage 3 directly. The third rib 9 is provided on the side of the air inlet 14. Three opening slots 12 are provided on the third rib 9. The opening slots 12 are arranged close to the heating component 5. The opening slots 12 are used for the connection between the first passage 3 and the second passage 4. The air flows out of the air inlet passage and enters the first passage 3. Most of the air in the first passage 3 enters the air outlet 2 after being heated by the heating component 5, and a small part enters the second passage 4 through the opening slots 12. That is to say, the second passage 4 is connected to the air inlet passage through the opening slots 12. Such an arrangement makes the structure more compact and saves space. The provision of the opening slots 12 not only connects the air inlet passage with the second passage 4, but also connects the first passage 3 and the second passage 4. In this way, gas exchange can occur between the first passage 3 and the second passage 4, that is, the gas in the first passage 3 can enter the second passage 4, and the gas in the second passage 4 can also enter the first passage 3. Assume that one end of the second passage 4 close to the air inlet component 1 is the first end, and the end close to the air outlet 2 is the second end. The diameter of the second passage 4 gradually decreases from the first end to the second end. Such an arrangement makes the gas flow rate at the second end of the second passage 4 relatively large. On the one hand, the blocking block 13 can play a better blocking role, causing most of the passing gas to return to the position of the plasma generator 6. On the other hand, a small part of the gas can enter the air outlet 2 faster, accelerating the gas circulation. It should be noted that a small part of the gas that returns to the plasma generator 6 will enter the first passage 3 through the opening slots 12, and after being heated by the heating component 5, it will enter the air outlet 2 together with the gas in the first passage 3 and finally enter the dishwasher inner cavity.

[0032] Specifically, the ends of the second rib 8 and the third rib 9 close to the air outlet 2 are both arc-shaped structures. The arc-shaped structures play a guiding role, guiding the gas in the first passage 3 and the second passage 4 to the air outlet 2, accelerating the gas circulation in the first passage 3 and the second passage 4.

[0033] Please refer to Figure 1As shown, in an embodiment of the present disclosure, a check valve 10 is provided in the first channel 3, and the check valve 10 is disposed between the heating assembly 5 and the air outlet 2. Specifically, the check valve 10 is a working rod, and the third rib 9 is provided with a connecting shaft, and one end of the working rod is hinged to the connecting shaft. Assuming that at the position of the connecting shaft, the width of the third rib 9 and the first rib 7 (i.e., the caliber of the first channel 3 at the position of the connecting shaft) is d, the length of the working rod should be greater than d. When the other end of the working rod abuts against the first rib 7, the check valve 10 is closed. When the check valve 10 is opened, the first channel 3 communicates with the air outlet 2. When the check valve 10 is closed, the first channel 3 does not communicate with the air outlet 2. It should be noted that when the hot air mechanism works, the air of the air inlet assembly 1 enters the first channel 3, and the air entering the first channel 3 pushes the working rod open, so that the end of the working rod leaves the first rib 7 (that is, the end of the working rod does not contact the first rib 7). At this time, the check valve 10 is opened, and the air in the first channel 3 enters the air outlet 2. It can be understood that the greater the air in the first channel 3, the greater the swing amplitude of the working rod until the end of the working rod swings to contact the third rib 9, and then the check valve 10 is fully opened. When the hot air mechanism does not work, there is basically no air passing through the first channel 3, the working rod will not swing, the end of the working rod abuts against the first rib 7, and the check valve 10 is in a closed state. The purpose of setting the check valve 10 is to prevent the gas in the dishwasher inner cavity from flowing back to the hot air mechanism when the hot air mechanism is not in use.

[0034] Since the ion generator has a relatively large power during operation, in order to make the hot air mechanism safer, a safety monitoring component 11 needs to be provided. There is a second gap between the third rib 9 and the heating assembly 5, and the safety monitoring component 11 is disposed in the second gap. Specifically, the safety monitoring component 11 is a fuse, and the fuse is connected in series with the ion generator and the heating assembly 5. When the current in the circuit is too large or the circuit is overheated, the fuse will melt and cut off the current to protect the circuit.

[0035] The above has introduced the present application in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the present application and its core idea. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A hot air mechanism of a dishwasher, characterized in that, It includes an air inlet assembly (1) and an air outlet (2). A flow channel is provided between the air inlet assembly (1) and the air outlet (2). The flow channel includes a first channel (3) and a second channel (4). The air inlet assembly (1) includes a fan and an air inlet channel. The air inlet channel is respectively communicated with the first channel (3) and the second channel (4). A heating component (5) is provided in the first channel (3). The heating component (5) is used to heat the air in the first channel (3). A plasma generator (6) is provided in the second channel (4). The air outlet (2) is communicated with the inner cavity of the dishwasher. The air in the first channel (3) and the air in the second channel (4) enter the inner cavity through the air outlet (2).

2. The hot air mechanism of the dishwasher according to claim 1, characterized in that, A stop block (13) is provided between the second channel (4) and the air outlet (2).

3. The hot air mechanism of the dishwasher according to claim 2, characterized in that The air outlet (2) is provided with a first housing (15). A first gap is provided between the upper edge of the stop block (13) and the upper wall of the first housing (15).

4. The hot air mechanism of the dishwasher according to claim 1, characterized in that, The flow channel is enclosed by a first rib (7) and a second rib (8). The first ends of the first rib (7) and the second rib (8) are both connected to the air inlet assembly (1). The second ends of the first rib (7) and the second rib (8) are both connected to the air outlet (2). A third rib (9) is provided between the first rib (7) and the second rib (8). The third rib (9) divides the flow channel into a first channel (3) and a second channel (4).

5. The hot air mechanism of the dishwasher according to claim 4, characterized in that Arc-shaped structures are respectively provided at the ends of the second rib (8) and the third rib (9) close to the air outlet (2).

6. The hot air mechanism of the dishwasher according to claim 4, characterized in that, At least one opening groove (12) is provided on the third rib (9). The opening groove (12) is arranged close to the heating component (5). The flow channel is communicated with the second channel (4) through the opening groove (12).

7. The hot air mechanism of the dishwasher according to claim 4, characterized in that, A check valve (10) is provided in the first channel (3). The check valve (10) is arranged between the heating component (5) and the air outlet (2). After the check valve (10) is opened, the first channel (3) is communicated with the air outlet (2).

8. The hot air mechanism of the dishwasher according to claim 7, characterized in that, The check valve (10) is a working rod. The third rib (9) is provided with a connecting shaft. One end of the working rod is hinged to the connecting shaft.

9. The hot air mechanism of the dishwasher according to claim 4, characterized in that The diameter of the first channel (3) is larger than that of the second channel (4). The air inlet channel is provided with an air inlet (14). The air inlet (14) faces the first channel (3). The third rib (9) is arranged on the side of the air inlet (14).

10. The hot air mechanism of the dishwasher according to claim 4, characterized in that, A second gap is provided between the third rib (9) and the heating component (5). A safety monitoring component (11) is provided in the second gap.

Images