Exhaust device and dish washing machine

Abstract

The exhaust device comprises a condenser and a respirator, the condenser comprises a shell with a cavity and an air exhaust mechanism, the shell is provided with an air duct and a condensation channel, the air exhaust mechanism is arranged in the air duct, the condensation channel is provided with an air inlet, the air duct is provided with an air outlet, and the condensation channel is communicated with the air duct; the respirator is provided with a breathing opening and a steam outlet, the breathing opening is communicated with an inner container of the dish washing machine, and the steam outlet is communicated with the air inlet. The condenser is communicated with the respirator, wet and hot steam in the inner container enters the respirator through the breathing opening, enters the condenser from the steam outlet after being primarily cooled by the respirator, and directly flows back into the respirator from the air inlet after being secondarily cooled and condensed by the condenser, and the condensed water can be used for cooling the steam. Damp and hot steam is condensed for multiple times and then discharged to the outside, so that low-temperature and low-water-vapor-content gas is discharged from the gas outlet, and the phenomenon that condensed water is generated on the surface of the cabinet is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of dish washer, specifically, especially, a kind of exhaust device and dish washer. BACKGROUND

[0002] Dish washer is mostly designed to be embedded in cabinet, it has cleaning and drying mode. In cleaning mode, with the increasing requirement of user to high-temperature disinfection washing, washing temperature is increased, and humid hot air is easily generated. In drying mode, humid hot steam is discharged from inner container, so that tableware in inner container is dried. In order to prevent steam in inner container from causing pressure rise, balance the pressure between inner container and outside, breather needs to be equipped in dish washer. Breather is usually installed on the outer wall of inner container, and breather is provided with breathing port and air vent, air vent is communicated with outside, and humid hot air in inner container is sucked into the cavity of breather through breathing port, and then part of wall surface is cooled and discharged, so that humid hot steam in inner container of dish washer is discharged, and the purpose of drying inner container is achieved. The wall surface cooling effect of breather is poor, and the gas discharged from breather is still humid hot steam, which can cause condensate on the surface of dish washer door body, dish washer shell or cabinet, and cause mildew of cabinet for a long time. SUMMARY

[0003] The utility model aims at providing an exhaust device to solve the technical problem of directly discharging humid hot steam from existing dish washer.

[0004] The exhaust device of the utility model can be realized by the following technical solutions:

[0005] An exhaust device comprises a condenser and a breather, the condenser comprises a shell with a cavity and a suction mechanism, the shell is provided with an air duct and a condensation channel, the suction mechanism is arranged in the air duct, the condensation channel is provided with an air inlet, the air duct is provided with an air outlet, and the condensation channel is communicated with the air duct. The breather is provided with a breathing port and a steam outlet, the breathing port is communicated with the inner container of dish washer, and the steam outlet is communicated with the air inlet.

[0006] In one embodiment, a plurality of condensation baffles are arranged in the condensation channel.

[0007] In one embodiment, the condensation baffles extend outward from the side wall of the condensation channel, the extension directions of adjacent two condensation baffles are opposite, and the condensation baffles are provided with condensate backflow holes.

[0008] In one of the embodiments, the air duct comprises an air inlet duct and an air outlet duct which are connected in series, the air inlet duct is connected with the condensing channel, the air inlet end of the air suction mechanism is connected with the air inlet duct, the air outlet end of the air suction mechanism is connected with the air outlet duct, and the air outlet is arranged at the end of the air outlet duct.

[0009] In one of the embodiments, a partition plate is arranged in the shell, the partition plate separates the shell into a condensing channel and an air inlet channel, and the condensing channel is parallel to the air inlet channel.

[0010] In one of the embodiments, the projection of the air inlet and the air outlet in the horizontal direction does not overlap, the air inlet is arranged on the first side wall of the shell, the air outlet is arranged on the second side wall of the shell, and the first side wall is adjacent to the second side wall.

[0011] In one of the embodiments, a flow guide channel is arranged in the respirator, a flow guide plate is arranged in the flow guide channel, one end of the flow guide channel is connected with the breathing port, and the other end of the flow guide channel is connected with the steam outlet.

[0012] In one of the embodiments, a water blocking rib is arranged in the respirator, and the water blocking rib extends upward from the bottom of the breathing port.

[0013] In one of the embodiments, an arc-shaped baffle is arranged in the respirator, and the arc-shaped baffle is arranged above the breathing port.

[0014] The utility model also provides a dish washing machine which comprises the above-mentioned exhaust device, and the exhaust device is arranged on the outer side wall of the inner container of the dish washing machine

[0015] Compared with the prior art, the exhaust device has the beneficial effects that: the condenser is connected with the respirator, the wet and hot steam in the inner container enters the respirator through the breathing port, is cooled for the first time in the respirator, and then enters the condenser through the steam outlet, is cooled for the second time in the condenser, and the condensed water generated after the condensation directly returns to the respirator through the air inlet, so that the condensed water can be used to cool the steam. The wet and hot steam is condensed for multiple times before being discharged to the outside, so that the air outlet discharges low-temperature and low-water-vapor-content gas, and the phenomenon that the condensed water is generated on the surface of the cabinet is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 is the overall structure schematic diagram of the exhaust device of the utility model;

[0018] Figure 2 is the internal structure schematic diagram of the exhaust device of the utility model, including exhaust direction mark;

[0019] Figure 3 is the overall structure schematic diagram of the condenser in the exhaust device of the utility model;

[0020] Figure 4 is the sectional view of the condenser in the exhaust device of the utility model;

[0021] Figure 5 is Figure 4 the enlarged view of A part, including condensate water backflow direction mark.

[0022] In the drawing, mark: 1, condenser; 11, shell; 111, air duct; 1111, air inlet channel; 1112, air outlet channel; 1113, air outlet; 112, condensation channel; 1121, air inlet; 113, condensation baffle; 1131, backflow hole; 114, partition plate; 115, first side wall; 116, second side wall; 12, air extraction mechanism; 2, respirator; 201, breathing port; 202, steam outlet; 203, air hole; 21, flow guide channel; 211, flow guide plate; 22, water baffle; 23, arc baffle. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Please refer to Figures 1-5 , a kind of exhaust device of the embodiment of the application, it is applied to dish washer, it is installed on the side wall of the inner container of dish washer, for cooling the wet hot steam in the inner container into dry gas, and then discharge to outside. Figure 2The gas exhaust path and the condensed water return path of the exhaust device are shown in the embodiment. The exhaust device comprises a condenser 1 and a breather 2, the condenser 2 comprises a shell 11 with a cavity and an air extraction mechanism 2, the shell 11 is provided with an air duct 111 and a condensing passage 112, and the air extraction mechanism 2 is arranged in the air duct 111. The condensing passage 112 is provided with an air inlet 1121, the air duct 111 is provided with an air outlet 1113, the condensing passage 112 communicates with the air duct 111, and the air extraction mechanism 2 can accelerate the gas entering the condensing passage 112 from the air inlet 1121. The air extraction mechanism 2 is arranged in the air duct 111 behind the condensing passage 112, and the gas entering the condenser 1 needs to pass through the condensing passage 112 to remove the water vapor, and then contact the air extraction mechanism 2, thereby avoiding the existence of residual water vapor in the gas, which causes a large amount of condensed water to form on the surface of the air extraction mechanism 2, and indirectly avoiding the surface rusting or failure of the air extraction mechanism 2 caused by water.

[0025] The breather 2 is provided with a breathing port 201, a steam outlet 202 and a vent hole 203, the breathing port 201 communicates with the inner container of the dishwasher, the vent hole 203 communicates with the outside to balance the air pressure in the inner container, and the steam outlet 202 communicates with the air inlet 1121. The wet steam in the inner container of the dishwasher enters the breather 2 from the breathing port 201, and the wet steam is initially cooled by the wall surface of the breather 2. The condensed water formed after cooling is returned to the inner container, and the gas after cooling contains residual water vapor. At this time, the gas is discharged from the steam outlet 202 and then enters the condenser 1 from the air inlet 1121. The gas enters the condenser 1, is first cooled and removes the residual water vapor, and the condensed water formed by the secondary cooling is returned to the breather 2 through the air inlet 1121. Finally, the dry gas flows through the air duct 111, and the air outlet 1113 is discharged to the outside, so that the water vapor content in the discharged gas is low and the temperature is low, thereby avoiding the generation of condensed water on the surface of the cabinet and solving the problem of mold and water dripping of the cabinet.

[0026] Specifically, please refer to 2、 Figure 4 and Figure 5 In order to quickly and better condense the water vapor in the gas, a plurality of condensing baffles 113 are arranged in the condensing passage 112, the gas is secondarily cooled after contacting the condensing baffles 113, and the problem of slow cooling caused by only wall surface contact is avoided.

[0027] More specifically, please refer to Figure 4 , Figure 4The condensation baffle structure and the condensate water backflow path are shown. The condensation baffles 113 extend outward from the side wall of the condensation channel 112, and the extension directions of two adjacent condensation baffles 113 are opposite. It can be understood that one end of the condensation baffle 113 is connected with the side wall of the condensation channel 112, and the other end has a gap with the side wall of the condensation channel 112; in addition, the non-same end of the two adjacent condensation baffles 113 is connected with the side wall of the condensation channel 112, so that the flow path of the gas in the condensation channel 112 is in an "S" shape, the gas flow path is lengthened, and the contact area between the gas and the condensation baffle 113 is increased, thereby greatly improving the condensation effect of water vapor in the gas, and the gas entering the air duct 111 is in a low-temperature and low-water-vapor-content state. In this embodiment, due to the different extension directions of the adjacent condensation baffles 113, the condensate water gathered on part of the condensation baffles 113 is concentrated on the side wall of the condensation channel 112. In order to quickly discharge the condensate water from the condensation channel 112 and avoid the condensate water overflowing into the air duct 111, the condensation baffle 113 is also provided with a condensate water backflow hole 1131, and the condensate water flows to the gas inlet 1121 through the backflow hole 1131 and then flows back to the respirator 2 from the steam outlet 202.

[0028] Please refer to Figure 2 and Figure 4 The air duct 111 includes the air inlet channel 1111 and the air outlet channel 1112 connected in series, the air inlet channel 1111 is communicated with the condensation channel 112, the gas is cooled and dehumidified again in the condensation channel 112, and then enters the air inlet channel 1111, and finally is discharged to the outside from the air outlet channel 1112. The air inlet end of the air extraction mechanism 12 is connected with the air inlet channel 1111, the air outlet end of the air extraction mechanism 12 is connected with the air outlet channel 1112, and the air outlet 1113 is arranged at the end of the air outlet channel 1112, so that the gas is cooled again in the air inlet channel after being cooled and dehumidified, and the low-temperature and low-humidity gas is further ensured to contact the air extraction mechanism 12, thereby preventing the air extraction mechanism 12 from being damaged by water. In this embodiment, the air extraction mechanism 12 is a centrifugal fan.

[0029] Specifically, the shell 11 is provided with a partition plate 114, and the partition plate 114 divides the shell 11 into the condensation channel 112 and the air inlet channel 1111, that is, the gas flows in a non-linear manner in the flow process, and the connection part between the condensation channel 112 and the air inlet channel 1111 is provided with a corner, thereby preventing the condensate water in the condensation channel 112 from flowing into the air inlet channel 1111. In addition, the volume of the entire condenser can be reduced, and the gas cooling path is lengthened.

[0030] Please refer to Figure 2 and Figure 3In the embodiment, the projection of the air inlet 1121 and the air outlet 1113 in the horizontal direction does not overlap, the air inlet 1121 is located on the first side wall 115 of the shell 11, the air outlet 1113 is located on the second side wall 116 of the shell 11, and the first side wall 115 is adjacent to the second side wall 116. It can be understood that the air inlet 1121 and the air outlet 1113 are located on different sides, and in actual application, the condenser can be arranged to be placed vertically or horizontally according to needs, and the gas flow path can also be made longer.

[0031] Please refer to Figure 2 The respirator 2 is internally provided with a flow guide channel 21, the flow guide channel 21 is internally provided with a flow guide plate 211, one end of the flow guide channel 21 is in communication with the breathing port 201, and the other end is in communication with the steam outlet 202. The condensed water in the condenser 1 enters the flow guide channel 21 through the air inlet 1121 and the steam outlet 202 in sequence and flows downward under the flow guide action of the flow guide plate 21. In order to avoid overflow of the condensed water to other parts inside the respirator 2, the respirator 2 is internally provided with a water retaining rib 22, the water retaining rib 22 extends upward from the bottom of the breathing port 202, so as to guide the condensed water in the flow guide channel 21 to the breathing port 202, and then backflow into the inner container from the breathing port 202. In the embodiment, the respirator 2 is internally further provided with an arc-shaped baffle 23, the arc-shaped baffle 23 is located above the breathing port 201, so that the humid and hot steam in the respirator 2 is partially blocked by the arc-shaped baffle 23, and the effect of the primary cooling is further enhanced, the water vapor content in the steam entering the condenser 2 is reduced, and the gas discharged from the air outlet 1113 is more stable, which is low in water vapor content and low in temperature.

[0032] The technical features of the above-described embodiments can be combined in any manner. In order to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, and those of ordinary skill in the art can make several modifications and improvements without departing from the concept of the present application, which are all within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An exhaust device characterized by, The exhaust device comprises a condenser and a breather, the condenser comprises a shell with a cavity and a suction mechanism, the shell is provided with an air duct and a condensation channel, the suction mechanism is arranged in the air duct, the condensation channel is provided with an air inlet, the air duct is provided with an air outlet, and the condensation channel communicates with the air duct; The breather is provided with a breathing port and a steam outlet, the breathing port communicates with an inner container of a dishwasher, and the steam outlet communicates with the air inlet.

2. An exhaust device according to claim 1, characterised in that A plurality of condensation baffles are arranged in the condensation channel.

3. An exhaust device according to claim 2, wherein The condensation baffles extend outward from the side wall of the condensation channel, the extension directions of adjacent two condensation baffles are opposite, and a condensation water backflow hole is formed in the condensation baffle.

4. An exhaust device according to claim 1, wherein The air duct comprises an air inlet duct and an air outlet duct which communicate with each other, the air inlet duct communicates with the condensation channel, the air inlet end of the suction mechanism is connected with the air inlet duct, the air outlet end of the suction mechanism is connected with the air outlet duct, and the air outlet is arranged at the end of the air outlet duct.

5. An exhaust device according to claim 4, characterised in that A partition plate is arranged in the shell, the partition plate separates the shell into a condensation channel and an air inlet channel, and the condensation channel is parallel to the air inlet channel.

6. An exhaust device according to claim 1, wherein The projection of the air inlet on the horizontal direction does not overlap with the projection of the air outlet, the air inlet is arranged on a first side wall of the shell, the air outlet is arranged on a second side wall of the shell, and the first side wall is adjacent to the second side wall.

7. An exhaust device according to claim 1, wherein A flow guide channel is arranged in the breather, a flow guide plate is arranged in the flow guide channel, one end of the flow guide channel communicates with the breathing port, and the other end of the flow guide channel communicates with the steam outlet.

8. An exhaust device according to claim 1, wherein A water blocking rib is arranged in the breather, and the water blocking rib extends upward from the bottom of the breathing port.

9. An exhaust device according to claim 1, wherein An arc-shaped baffle is arranged in the breather, and the arc-shaped baffle is located above the breathing port.

10. A dishwasher, characterized in that The exhaust device comprises a condenser and a breather, the condenser comprises a shell with a cavity and a suction mechanism, the shell is provided with an air duct and a condensation channel, the suction mechanism is arranged in the air duct, the condensation channel is provided with an air inlet, the air duct is provided with an air outlet, and the condensation channel communicates with the air duct; The breather is provided with a breathing port and a steam outlet, the breathing port communicates with an inner container of a dishwasher, and the steam outlet communicates with the air inlet. A plurality of condensation baffles are arranged in the condensation channel. The condensation baffles extend outward from the side wall of the condensation channel, the extension directions of adjacent two condensation baffles are opposite, and a condensation water backflow hole is formed in the condensation baffle. The air duct comprises an air inlet duct and an air outlet duct which communicate with each other, the air inlet duct communicates with the condensation channel, the air inlet end of the suction mechanism is connected with the air inlet duct, the air outlet end of the suction mechanism is connected with the air outlet duct, and the air outlet is arranged at the end of the air outlet duct. A partition plate is arranged in the shell, the partition plate separates the shell into a condensation channel and an air inlet channel, and the condensation channel is parallel to the air inlet channel. The projection of the air inlet on the horizontal direction does not overlap with the projection of the air outlet, the air inlet is arranged on a first side wall of the shell, the air outlet is arranged on a second side wall of the shell, and the first side wall is adjacent to the second side wall. A flow guide channel is arranged in the breather, a flow guide plate is arranged in the flow guide channel, one end of the flow guide channel communicates with the breathing port, and the other end of the flow guide channel communicates with the steam outlet. A water blocking rib is arranged in the breather, and the water blocking rib extends upward from the bottom of the breathing port. An arc-shaped baffle is arranged in the breather, and the arc-shaped baffle is located above the breathing port. The exhaust device comprises a condenser and a breather, the condenser comprises a shell with a cavity and a suction mechanism, the shell is provided with an air duct and a condensation channel, the suction mechanism is arranged in the air duct, the condensation channel is provided with an air inlet, the air duct is provided with an air outlet, and the condensation channel communicates with the air duct; The breather is provided with a breathing port and a steam outlet, the breathing port communicates with an inner container of a dishwasher, and the steam outlet communicates with the air inlet.

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