Cold and hot convection control structure of dish washing machine

Abstract

A cold and hot convection control structure of a dish-washing machine comprises an inner container cavity and a cold and hot convection control system, the cold and hot convection control system comprises a fan assembly, an exhaust part, a heat exchange device, an air inlet part and an air outlet part, the air inlet end of the fan assembly is communicated with the outside, the air outlet end of the fan assembly is communicated with the heat exchange device, and the heat exchange device is communicated with the air inlet part. The air inlet piece is communicated with the air outlet piece and the inner container cavity, the air outlet piece is communicated with the outside, the inner container cavity is communicated with the air exhaust piece, and the air exhaust piece is communicated with the heat exchange device. The utility model provides a cold and hot convection control structure of a dish-washing machine, which realizes condensation conversion of steam of the dish-washing machine by utilizing a semiconductor refrigeration and heating two-surface system and combining with fan convection and enabling hot air to enter cold air to be discharged, namely, hot storage of tableware is improved, drying is accelerated, and meanwhile, the discharged steam is condensed and refluxed, so that the heat efficiency of the dish-washing machine is improved. The drying performance and the storage work efficiency of the dish-washing machine are improved, and the inside and the outside of the whole machine are prevented from being influenced by the vicious change of the wet steam environment.

Description

Technical Field

[0001] The utility model relates to the technical field of dishwashers, in particular to a hot and cold convection control structure of a dishwasher. Background Art

[0002] As dishwashers become more and more popular, they are also constantly upgraded, from the original waste heat drying to cold air drying and then to the later hot air drying; the functions and performance of dishwashers are constantly improving, however, the addition of a fan blowing upgrade function has a common defect, namely the large amount of steam discharged by the dishwasher; some dishwashers will cover the steam inside the machine body, while others will directly discharge it into the outside air; the disadvantages are self-evident, the high-temperature and high-humidity steam cannot be volatilized and diffused inside the whole machine for a long time, which will eventually cause the internal components of the machine to age faster and even rust; and the steam discharged to the outside is particularly harmful to wooden cabinets, and the long-term humid environment has caused the wooden cabinets to mold.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The utility model aims to provide a dishwasher hot and cold convection control structure which has a simple structure, good drying performance, effectively avoids direct discharge of wet steam and is highly practical, so as to overcome the shortcomings of the prior art.

[0005] A hot and cold convection control structure of a dishwasher designed for this purpose includes an inner tank cavity, and is characterized in that it also includes a hot and cold convection control system, which includes a fan assembly, an exhaust piece, a heat exchange device, an air inlet piece and an air outlet piece. The air inlet end of the fan assembly is connected to the outside world, and the air outlet end is connected to the heat exchange device. The heat exchange device and the air inlet piece are connected to each other. The air inlet piece is respectively connected to the air outlet piece and the inner tank cavity. The air outlet piece is connected to the outside world, the inner tank cavity is connected to the exhaust piece, and the exhaust piece is connected to the heat exchange device. When the dishwasher is working, the outside cold air enters the heat exchange device under the action of the fan assembly, and the hot air after heat exchange in the heat exchange device enters the inner tank cavity through the air inlet piece; the steam in the inner tank cavity is discharged into the heat exchange device through the exhaust piece, and the cold air after heat exchange in the heat exchange device is discharged to the outside world through the air inlet piece and the air outlet piece in turn, and the condensed water after heat exchange in the heat exchange device flows back to the inner tank cavity through the air inlet piece.

[0006] The fan assembly comprises a fan and a fixed support, the fan is mounted on the fixed support, a first channel is arranged in the fixed support, and an air outlet of the fan assembly, the first channel and the heat exchange device are connected in sequence.

[0007] A second channel which is not connected to the first channel is also provided in the fixed support, an exhaust channel is provided in the exhaust piece, an air outlet is provided on the inner tank cavity, and the inner tank cavity, the air outlet, the exhaust channel, the second channel and the heat exchange device are connected in sequence.

[0008] The heat exchange device includes a mounting support and a semiconductor conduction component arranged in the mounting support. A first heat exchange zone and a second heat exchange zone are arranged in the mounting support. The semiconductor conduction component includes a hot conduction plate and a cold conduction plate. The hot conduction plate is arranged in the first heat exchange zone, and the cold conduction plate is arranged in the second heat exchange zone. The first channel, the first heat exchange zone and the air inlet are connected in sequence, and the second channel, the second heat exchange zone and the air inlet are connected in sequence.

[0009] The semiconductor conduction component also includes a conduction body, a hot conduction plate and a cold conduction plate are respectively arranged on both sides of the conduction body, sockets are respectively arranged at both ends of the conduction body, partitions are respectively arranged at both ends of the mounting support, the partitions are inserted into the sockets, and the conduction body and the partitions separate the interior of the mounting support into a first heat exchange zone and a second heat exchange zone.

[0010] A third channel is arranged in the air inlet member, an air inlet is arranged on the inner tank cavity, and the first heat exchange area, the third channel, the air inlet and the inner tank cavity are connected in sequence.

[0011] A fourth channel which is not connected to the third channel is also provided in the air inlet member, an air outlet channel is provided in the air outlet member, and the second heat exchange area, the fourth channel and the air outlet channel are connected in sequence.

[0012] An exhaust port connected to the outside is arranged on the front side of the inner tank cavity, and the air outlet channel is connected to the exhaust port.

[0013] A fifth channel is also provided in the air inlet member, and the fourth channel, the fifth channel, the air inlet and the inner tank cavity are connected in sequence.

[0014] The hot and cold convection control system is installed on one side of the inner tank cavity.

[0015] The utility model provides a hot and cold convection control structure for a dishwasher, which utilizes a semiconductor cooling and heating two-side system in combination with fan convection to achieve condensation conversion of dishwasher steam by having hot air enter and cold air exhaust, thereby improving hot storage of tableware and accelerating drying, while condensing and refluxing the exhausted steam to allow cold air to be exhausted from the dishwasher, which not only improves the drying performance and storage efficiency of the dishwasher, but also protects the entire machine from being affected by the deterioration of a wet steam environment inside and outside, thereby improving user satisfaction with the performance of the dishwasher. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the overall structure of a dishwasher in one embodiment of the utility model.

[0017] Figure 2 It is a schematic diagram of the overall structure of a hot and cold convection control system in one embodiment of the utility model.

[0018] Figure 3 It is a cross-sectional view of a hot and cold convection control system in one embodiment of the utility model.

[0019] Figure 4 It is a cross-sectional view of a heat exchange device in one embodiment of the utility model.

[0020] Figure 5 It is a schematic diagram of the decomposed structure of the hot and cold convection control system in one embodiment of the utility model. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] See also Figure 1-Figure 5 The hot and cold convection control structure of the dishwasher includes an inner tank cavity 6, and also includes a hot and cold convection control system A. The hot and cold convection control system A includes a fan assembly 1, an exhaust member 2, a heat exchange device 3, an air inlet member 4 and an air outlet member 5. The air inlet end of the fan assembly 1 is connected to the outside world, and the air outlet end is connected to the heat exchange device 3. The heat exchange device 3 and the air inlet member 4 are connected to each other. The air inlet member 4 is respectively connected to the air outlet member 5 and the inner tank cavity 6. The air outlet member 5 is connected to the outside world, the inner tank cavity 6 is connected to the exhaust member 2, and the exhaust member 2 is connected to the heat exchange device 3. When the dishwasher is working, the outside cold air enters the heat exchanger under the action of the fan assembly 1. Device 3, the hot air after heat exchange by the heat exchange device 3 enters the inner tank cavity 6 through the air inlet piece 4; the steam in the inner tank cavity 6 is discharged into the heat exchange device 3 through the exhaust piece 2, and the cold air after heat exchange by the heat exchange device 3 is discharged to the outside through the air inlet piece 4 and the air outlet piece 5 in turn, and the condensed water after heat exchange by the heat exchange device 3 flows back to the inner tank cavity 6 through the air inlet piece 4; the hot and cold convection control system A changes the air temperature and humidity by utilizing the semiconductor hot and cold conduction system, which not only improves the dry storage of the dishwasher tableware, but also avoids the direct discharge of wet steam, thereby fundamentally realizing the various advantages of fan drying.

[0023] The fan assembly 1 includes a fan 7 and a fixed support 8, on which a mounting frame 25 is provided, on which the fan 7 is mounted, and in which a first channel 9 is provided, and the air outlet of the fan assembly 1, the first channel 9 and the heat exchange device 3 are connected in sequence.

[0024] A second channel 10 which is not connected to the first channel 9 is also provided in the fixed support 8, an exhaust channel is provided in the exhaust piece 2, an air outlet 11 is provided on the inner liner cavity 6, the inner liner cavity 6, the air outlet 11, the exhaust channel, the second channel 10 and the heat exchange device 3 are connected in sequence; the exhaust piece 2 is an exhaust support, an air port is provided at one end of the exhaust support, the air port is connected to the air outlet 11, and the other end of the exhaust support is connected to the fixed support 8.

[0025] The heat exchange device 3 includes a mounting support 12 and a semiconductor conduction component 13 arranged in the mounting support 12. The fixed support 8 is connected to the mounting support 12. A first heat exchange area 14 and a second heat exchange area 15 are arranged in the mounting support 12. The semiconductor conduction component 13 includes a hot conduction plate 16 and a cold conduction plate 17. The hot conduction plate 16 is arranged in the first heat exchange area 14, and the cold conduction plate 17 is arranged in the second heat exchange area 15. The first channel 9, the first heat exchange area 14 and the air inlet 4 are connected in sequence, and the second channel 10, the second heat exchange area 15 and the air inlet 4 are connected in sequence.

[0026] The semiconductor conduction component 13 also includes a conduction body 18, a hot conduction sheet 16 and a cold conduction sheet 17 are respectively arranged on both sides of the conduction body 18, and sockets 19 are respectively arranged at both ends of the conduction body 18. Partitions 20 are respectively arranged at both ends of the mounting support 12, and the partitions 20 are inserted into the sockets 19. The conduction body 18 and the partitions 20 separate the interior of the mounting support 12 into a first heat exchange area 14 and a second heat exchange area 15, realizing double-layer separation, that is, one-side hot state and one-side cold state.

[0027] A third channel 21 is provided in the air inlet member 4, an air inlet 24 is provided on the inner tank cavity 6, the first heat exchange zone 14, the third channel 21, the air inlet 24 and the inner tank cavity 6 are connected in sequence; the air inlet member 4 is an air inlet support, the air inlet support is interconnected with the mounting support 12, an air port is provided on the air inlet support, and the air port is interconnected with the air inlet 24.

[0028] A fourth channel 22 which is not connected to the third channel 21 is also provided in the air inlet member 4, an air outlet channel is provided in the air outlet member 5, the second heat exchange area 15, the fourth channel 22 and the air outlet channel are connected in sequence, the air outlet member 5 is a guide exhaust duct, one end of which is interconnected with the air inlet support.

[0029] A front support frame 26 is provided at the front side of the inner tank cavity 6 , and an exhaust port 23 communicating with the outside is provided on the front support frame 26 . The other end of the air guide and exhaust duct is connected to the front support frame 26 , and the air outlet channel is connected to the exhaust port 23 .

[0030] A fifth channel is also provided in the air inlet member 4, and the fourth channel 22, the fifth channel, the air inlet 24 and the inner tank cavity 6 are connected in sequence.

[0031] The hot and cold convection control system A is installed on one side of the inner tank cavity 6.

[0032] Working principle of hot and cold convection control system:

[0033] During the drying stage of the dishwasher, the outside air is sent into the first channel 9 of the fixed support 8 through the fan 7, and then into the mounting support 12, and converted into hot air through the hot conduction sheet 16 of the semiconductor conduction component 13, and then sent into the inner tank cavity 6 through the third channel 21 of the air inlet member 4; at the same time, in order to maintain the air pressure balance of the inner tank cavity 6, a large amount of steam will be discharged through another exhaust member 2 connected to the inner tank cavity 6, and then enter the mounting support 12 through the second channel 10 of the fixed support 8, and converted into condensed water and cold air through the cold conduction sheet 17 of the semiconductor conduction component 13, and then enter the fourth channel 22 of the air inlet member 4, wherein the cold air will be further discharged into the outside atmosphere along the air outlet member 5 connected to the air inlet member 4, and the formed condensed water will flow back to the inner tank cavity 6 through the fifth channel of the air inlet member 4 under the guidance of its gravity, thereby completely solving the quality problem caused by steam emission.

[0034] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A hot and cold convection control structure for a dishwasher, comprising an inner tank cavity (6), characterized in that: The invention also includes a cold and hot convection control system (A), which includes a fan assembly (1), an exhaust member (2), a heat exchange device (3), an air inlet member (4) and an air outlet member (5), wherein the air inlet end of the fan assembly (1) is connected to the outside, and the air outlet end is connected to the heat exchange device (3), the heat exchange device (3) and the air inlet member (4) are connected to each other, the air inlet member (4) is connected to the air outlet member (5) and the inner tank cavity (6), the air outlet member (5) is connected to the outside, the inner tank cavity (6) is connected to the exhaust member (2), and the exhaust member (2) is connected to the inner tank cavity (6). The heat exchange device (3) is connected to the dishwasher; when the dishwasher is in operation, cold air from the outside enters the heat exchange device (3) under the action of the fan assembly (1), and the hot air after heat exchange in the heat exchange device (3) enters the inner tank cavity (6) through the air inlet piece (4); the steam in the inner tank cavity (6) is discharged into the heat exchange device (3) through the air outlet piece (2), and the cold air after heat exchange in the heat exchange device (3) is discharged to the outside through the air inlet piece (4) and the air outlet piece (5) in sequence, and the condensed water after heat exchange in the heat exchange device (3) flows back to the inner tank cavity (6) through the air inlet piece (4).

2. The hot and cold convection control structure of the dishwasher according to claim 1, characterized in that: The fan assembly (1) comprises a fan (7) and a fixed support (8), the fan (7) being mounted on the fixed support (8), a first channel (9) being provided in the fixed support (8), and an air outlet end of the fan assembly (1), the first channel (9) and the heat exchange device (3) being connected in sequence.

3. The hot and cold convection control structure of the dishwasher according to claim 2, characterized in that: A second channel (10) which is not connected to the first channel (9) is also provided in the fixed support (8), an exhaust channel is provided in the exhaust member (2), an air outlet (11) is provided on the inner tank cavity (6), and the inner tank cavity (6), the air outlet (11), the exhaust channel, the second channel (10) and the heat exchange device (3) are connected in sequence.

4. The hot and cold convection control structure of the dishwasher according to claim 3, characterized in that: The heat exchange device (3) comprises a mounting support (12) and a semiconductor conduction component (13) arranged in the mounting support (12); a first heat exchange area (14) and a second heat exchange area (15) are arranged in the mounting support (12); the semiconductor conduction component (13) comprises a hot conduction sheet (16) and a cold conduction sheet (17); the hot conduction sheet (16) is arranged in the first heat exchange area (14); the cold conduction sheet (17) is arranged in the second heat exchange area (15); the first channel (9), the first heat exchange area (14) and the air inlet (4) are connected in sequence; and the second channel (10), the second heat exchange area (15) and the air inlet (4) are connected in sequence.

5. The hot and cold convection control structure of the dishwasher according to claim 4, characterized in that: The semiconductor conduction component (13) further comprises a conduction body (18), a hot conduction sheet (16) and a cold conduction sheet (17) respectively arranged on both sides of the conduction body (18), a socket (19) respectively arranged at both ends of the conduction body (18), a partition (20) respectively arranged at both ends of the mounting support (12), the partition (20) being inserted into the socket (19), and the conduction body (18) and the partition (20) dividing the interior of the mounting support (12) into a first heat exchange area (14) and a second heat exchange area (15).

6. The hot and cold convection control structure of the dishwasher according to claim 4, characterized in that: A third channel (21) is provided in the air inlet member (4), an air inlet (24) is provided on the inner tank cavity (6), and the first heat exchange area (14), the third channel (21), the air inlet (24) and the inner tank cavity (6) are sequentially connected.

7. The hot and cold convection control structure of a dishwasher according to claim 6, characterized in that: A fourth channel (22) which is not connected to the third channel (21) is also provided in the air inlet member (4), an air outlet channel is provided in the air outlet member (5), and the second heat exchange area (15), the fourth channel (22) and the air outlet channel are connected in sequence.

8. The hot and cold convection control structure of the dishwasher according to claim 7, characterized in that: An exhaust port (23) communicating with the outside is arranged on the front side of the inner tank cavity (6), and the air outlet passage is connected with the exhaust port (23).

9. The hot and cold convection control structure of a dishwasher according to claim 7, characterized in that: A fifth channel is also provided in the air inlet member (4), and the fourth channel (22), the fifth channel, the air inlet (24) and the inner tank cavity (6) are sequentially connected.

10. The hot and cold convection control structure of a dishwasher according to any one of claims 1 to 9, characterized in that: The hot and cold convection control system (A) is installed on one side of the inner tank cavity (6).

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