CN114129115A

CN114129115A - Ventilation device and drying system of kitchen appliance

Info

Publication number: CN114129115A
Application number: CN202111373298.7A
Authority: CN
Inventors: 黎铭峰; 潘叶江
Original assignee: Vatti Co Ltd
Current assignee: Vatti Co Ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-03-04

Abstract

The invention discloses a ventilation device and a drying system of kitchen appliances, wherein the ventilation device is arranged on a cavity body, a shunting cavity, an air inlet channel, a ventilation channel and an air outlet channel are respectively limited in a shell body, a controller controls the action of a valve plate mechanism to enable the air inlet channel to be communicated with the ventilation channel, so that external air is guided into the shunting cavity through the air inlet channel, the air entering the shunting cavity is conveyed into the cavity body through the air inlet channel, or the air inlet channel, the ventilation channel and the air outlet channel are communicated, so that the air in an inner container is guided to the shunting cavity through the ventilation channel, and the external air is guided into the shunting cavity through the air inlet channel to enable the external air and the air in the inner container to be mixed in the shunting cavity, thus the condensation of water vapor in the internal air can be promoted, and then the mixed gas is discharged outwards through the air outlet channel, the structure is simple, the drying effect at different positions in the cavity can be effectively improved.

Description

Ventilation device and drying system of kitchen appliance

Technical Field

The invention relates to the technical field of kitchen electricity, in particular to a ventilation device and a drying system of a kitchen appliance.

Background

In addition to the requirement for the dishwasher to be able to clean the dishes, some dishwashers require the dishes to be dried after washing, so that the drying capacity can be enhanced by introducing a drying system, and some dishwashers have incorporated a heating module into the air intake device to blow hot air into the inner tub to further enhance the drying.

In the related art, most of drying systems have air inlets and air outlets arranged on the side wall of the inner container, and the air blowing direction is fixed, so that although the drying of the tableware, the bowl basket, the outer surface of the structural member and the wall of the inner container in the inner container can be promoted, the difference between the windward side and the leeward side exists, the drying efficiency of the tableware between the inner side and the outer side of the tableware and the tableware at different positions in the inner container still can be different, and the overall drying performance has a further improved space.

Disclosure of Invention

The invention aims to solve at least one of the problems in the prior related art to a certain extent, and therefore the invention provides a ventilation device which is simple in structure and can effectively improve the drying effect at different positions in a cavity.

In addition, the invention also provides a drying system of the kitchen appliance, which is reasonable in design and can form two air flows in different flowing directions in the inner container, so that the drying efficiency and uniformity of different positions in the inner container are effectively improved.

The first object is achieved by the following technical scheme:

a vent mounted on a chamber, comprising:

a housing;

a flow diversion chamber disposed within the housing;

the air inlet channel is arranged in the shell and is provided with an air inlet communicated with the outside, and one end of the air inlet channel, which is far away from the air inlet, is communicated with the flow dividing cavity;

the ventilation channel is arranged in the shell and is provided with a ventilation opening communicated with the cavity, and one end of the ventilation channel, which is far away from the ventilation opening, is communicated with the flow dividing cavity;

the air outlet channel is arranged in the shell and is provided with an air outlet communicated with the outside, and one end of the air outlet channel, which is far away from the air outlet, is communicated with the flow dividing cavity;

the valve plate mechanism is arranged in the shell so as to enable the air inlet channel to be communicated with the ventilation channel or enable the air inlet channel, the ventilation channel and the air outlet channel to be communicated;

and the controller is electrically connected with the valve plate mechanism.

In some embodiments, the air distribution device further comprises a first flow channel, a second flow channel and a third flow channel which are arranged in the flow distribution cavity side by side, wherein the bottoms of the first flow channel, the second flow channel and the third flow channel are communicated with each other, and the valve plate mechanism is arranged in the shell so that the air inlet channel is communicated with the ventilation channel after sequentially passing through the second flow channel and the third flow channel, or the air inlet channel, the first flow channel, the second flow channel, the ventilation channel, the third flow channel and the air outlet channel are communicated with each other.

In some embodiments, the valve plate mechanism includes a first valve plate, a second valve plate, a third valve plate and a driving motor, wherein the air inlet channel and the ventilation channel are arranged side by side, the first valve plate is hinged to one end of the air inlet channel to control the connection and disconnection between the first flow channel and the air inlet channel, the second valve plate is hinged to the connection portion between the air inlet channel and the ventilation channel to control the connection and disconnection between the second flow channel, the air inlet channel and the ventilation channel, the third valve plate is hinged to one end of the ventilation channel far away from the second valve plate to control the connection and disconnection between the third flow channel, the ventilation channel and the air outlet channel, the driving motor is electrically connected to the controller, and the output end of the driving motor is respectively connected to the first valve plate, the second valve plate, the third valve plate and the driving motor, The third valve plate is connected.

In some embodiments, the driving motor is disposed in the housing, and an output end of the driving motor sequentially passes through the first valve plate and the second valve plate and then is connected to the third valve plate, or sequentially passes through the third valve plate and the second valve plate and then is connected to the first valve plate.

In some embodiments, an air outlet inlet is disposed at an end of the air outlet channel away from the air outlet, and the valve plate mechanism is disposed at the air outlet inlet to open and close the air outlet channel, so as to communicate the first flow channel with the second flow channel, or communicate the first flow channel, the second flow channel, and the third flow channel.

In some embodiments, the valve mechanism includes a driving module electrically connected to the controller and a fourth valve, wherein the driving module is disposed in the casing, the fourth valve is disposed at the outlet, and the fourth valve is connected to an output end of the driving module.

In some embodiments, the air conditioner further comprises an air inlet fan and a ventilation fan, wherein the air inlet fan and the ventilation fan are respectively electrically connected with the controller, the air inlet fan is arranged in the air inlet channel, and the ventilation fan is arranged in the ventilation channel.

In some embodiments, the air conditioner further includes a heater disposed in the air intake passage to heat air introduced from the outside.

The second objective is achieved by the following technical scheme:

a drying system of a kitchen appliance is provided, the kitchen appliance is provided with a liner, a hollow cavity is limited in the liner, and the drying system comprises a circulating device and/or a ventilating device according to any one of the above embodiments, wherein the circulating device and the ventilating device are respectively arranged on two opposite sides of the cavity, or the ventilating device is respectively arranged on two opposite sides of the cavity, and two airflows with different flowing directions are formed in the liner through the co-cooperation action of the ventilating device and the circulating device or the co-cooperation action of the two ventilating devices.

In some embodiments, the flow-through device comprises a flow-through conduit in communication with the cavity at one end and with the exterior at the other end.

In some embodiments, the flow-through device further comprises a flow-through fan disposed within the flow-through duct.

Compared with the prior art, the invention at least comprises the following beneficial effects:

1. the ventilation device provided by the invention has a simple structure, and can effectively improve the drying effect at different positions in the cavity.

2. The drying system of the kitchen appliance is reasonable in design, and can form two air flows in different flowing directions in the inner container, so that the drying efficiency and uniformity of different positions in the inner container are effectively improved.

Drawings

FIG. 1 is a schematic structural view of a ventilator in an air intake mode according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a ventilation device in an air-out mode according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a drying system of a kitchen appliance according to a second embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a drying system of a kitchen appliance according to a third embodiment of the present invention;

fig. 5 is a schematic structural diagram of a drying system of a kitchen appliance according to a fourth embodiment of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of the claims of the present invention.

The first embodiment is as follows:

as shown in fig. 1 and 2, the present embodiment provides a ventilation apparatus, mounted on a chamber 71, including:

a housing 1;

the shunting cavity 2 is arranged in the shell 1;

the air inlet channel 3 is arranged in the shell 1 and is provided with an air inlet 31 communicated with the outside, and one end of the air inlet channel 3, which is far away from the air inlet 31, is communicated with the flow dividing cavity 2;

the ventilation channel 4 is arranged in the shell 1 and is provided with a ventilation opening 41 communicated with the cavity 71, and one end of the ventilation channel 4, which is far away from the ventilation opening 41, is communicated with the flow dividing cavity 2;

the air outlet channel 5 is arranged in the shell 1 and is provided with an air outlet 51 communicated with the outside, and one end of the air outlet channel 5, which is far away from the air outlet 51, is communicated with the flow dividing cavity 2;

the valve plate mechanism 6 is arranged in the shell 1 so as to enable the air inlet channel 3 to be communicated with the ventilation channel 4, or enable the air inlet channel 3, the ventilation channel 4 and the air outlet channel 5 to be communicated;

and the controller is electrically connected with the valve plate mechanism 6.

In this embodiment, the ventilation device 9 is installed on the cavity 71 to introduce external air into the cavity 71 or discharge the air in the cavity 71, a branch chamber 2, an air inlet channel 3, a ventilation channel 4 and an air outlet channel 5 are respectively defined in the housing 1, the controller controls the operation of the valve mechanism 6 to communicate the air inlet channel 3 with the ventilation channel 4, so as to introduce the external air into the branch chamber 2 through the air inlet channel 3, and then convey the air entering the branch chamber 2 into the cavity 71 through the ventilation channel 4, or communicate the air inlet channel 3, the ventilation channel 4 and the air outlet channel 5, so as to guide the air in the inner container 7 to the branch chamber 2 through the ventilation channel 4, and simultaneously introduce the external air into the branch chamber 2 through the air inlet channel 3 to mix the external air with the air in the inner container 7 in the branch chamber 2, so as to promote the condensation of water vapor in the internal air, and then the mixed gas is discharged outside through the air outlet channel 5, the structure is simple, and the drying effect at different positions in the cavity 71 can be effectively improved.

Preferably, the air conditioner further comprises a first flow channel 21, a second flow channel 22 and a third flow channel 23 which are arranged in the flow dividing cavity 2 side by side, wherein the bottoms of the first flow channel 21, the second flow channel 22 and the third flow channel 23 are communicated with each other, and the valve plate mechanism 6 is arranged in the shell 1 so that the air inlet channel 3 is communicated with the ventilation channel 4 after sequentially passing through the second flow channel 22 and the third flow channel 23, or the air inlet channel 3, the first flow channel 21, the second flow channel 22, the ventilation channel 4, the third flow channel 23 and the air outlet channel 5 are communicated with each other.

Further, the valve plate mechanism 6 includes a first valve plate 61, a second valve plate 62, a third valve plate 63 and a driving motor 64, wherein the air inlet channel 3 and the ventilation channel 4 are arranged side by side, the first valve plate 61 is hinged to one end of the air inlet channel 3 to control the connection and disconnection between the first flow channel 21 and the air inlet channel 3, the second valve plate 62 is hinged to the connection position between the air inlet channel 3 and the ventilation channel 4 to control the connection and disconnection between the second flow channel 22, the air inlet channel 3 and the ventilation channel 4, the third valve plate 63 is hinged to one end of the ventilation channel 4 far away from the second valve plate 62 to control the connection and disconnection between the third flow channel 23, the ventilation channel 4 and the air outlet channel 5, the driving motor 64 is electrically connected with the controller, and the output end of the driving motor 64 is respectively connected with the first valve plate 61, the second valve plate 62 and the third valve plate 63.

Specifically, the driving motor 64 is disposed in the housing 1, and an output end of the driving motor 64 sequentially passes through the first valve plate 61 and the second valve plate 62 and then is connected to the third valve plate 63, or sequentially passes through the third valve plate 63 and the second valve plate 62 and then is connected to the first valve plate 61.

In the present embodiment, the first flow channel 21, the second flow channel 22 and the third flow channel 23 are arranged side by side in the flow dividing chamber 2, that is, the first flow channel 21, the second flow channel 22 and the third flow channel 23 are arranged adjacently, the bottoms of the first flow channel 21, the second flow channel 22 and the third flow channel 23 are communicated with each other, so that a communication position between the first flow channel 21, the second flow channel 22 and the third flow channel 23 is formed at the bottom of the flow dividing chamber 2, and the tops of the first flow channel 21, the second flow channel 22 and the third flow channel 23 are communicated with each other, since the air inlet channel 3 and the air vent channel 4 are arranged side by side, that is, the air inlet channel 3 and the air vent channel 4 are arranged adjacently, the first valve plate 61 is hinged at one end of the air inlet channel 3 to control the on-off of the first flow channel 21, the second valve plate 62 is hinged at the other end of the air inlet channel 3 to control the on-off of the second flow channel 22, that is, that the second valve plate 62 is hinged at the intersection position of the air inlet channel 3 and the air vent channel 4, the ventilation channel 4 is hinged with a third valve plate 63 at one end far away from the second valve plate 62 to control the on-off of the third flow channel 23.

In this embodiment, because the first valve plate 61, the second valve plate 62, and the third valve plate 63 are disposed at the top of the flow dividing chamber 2 side by side at intervals, the driving motor 64 is disposed in the housing 1, and the output end of the driving motor 64 sequentially passes through the first valve plate 61, the second valve plate 62 and then is connected to the third valve plate 63, or sequentially passes through the third valve plate 63, the second valve plate 62 and then is connected to the first valve plate 61, so that the single driving motor 64 drives the first valve plate 61, the second valve plate 62, and the third valve plate 63 to synchronously turn over.

Preferably, when the output end of the driving motor 64 sequentially passes through the first valve plate 61 and the second valve plate 62 and then is connected to the third valve plate 63, the driving motor 64 drives the first valve plate 61, the second valve plate 62 and the third valve plate 63 to synchronously turn over, so that the ventilation device 9 has two working modes, namely an air inlet mode and an air outlet mode. When the ventilation device 9 is in the air intake mode, the duct between the air intake channel 3 and the first flow channel 21 is disconnected by the action of the first valve plate 61, the duct between the second flow channel 22 and the air intake channel 3 is communicated by the action of the second valve plate 62, the duct between the third flow channel 23 and the ventilation channel 4 is communicated by the action of the third valve plate 63, and the duct between the third flow channel 23 and the air exhaust channel 5 is simultaneously opened by the third valve plate 63, so that the air intake channel 3 is communicated with the ventilation channel 4 after passing through the second flow channel 22 and the third flow channel 23 in sequence, and external air is conveyed into the cavity 71 after passing through the air intake channel 3, the second flow channel 22, the third flow channel 23 and the ventilation channel 4 in sequence. In addition, when the ventilator 9 is in the air-out mode, the duct between the air inlet channel 3 and the first flow channel 21 is communicated through the action of the first valve plate 61, the duct between the second flow channel 22 and the ventilation channel 4 is communicated through the action of the second valve plate 62, and the duct between the third flow channel 23 and the air-out channel 5 is communicated through the action of the third valve plate 63, so that the air inlet channel 3, the first flow channel 21, the second flow channel 22, the ventilation channel 4, the third flow channel 23 and the air-out channel 5 are communicated, and therefore the air in the inner container 7 is guided to the second flow channel 22 through the ventilation channel 4, and meanwhile the external air is guided to the first flow channel 21 through the air inlet channel 3, and because the bottom of the first flow channel 21 is communicated with the bottom of the second flow channel 22 to form a communication position between the bottom of the diversion cavity 2, the external air and the air in the inner container 7 are mixed at the communication position between the first flow channel 21 and the second flow channel 22, therefore, the condensation of water vapor in the internal gas can be promoted, and then the mixed gas is discharged outwards through the air outlet channel 5.

Further, an air outlet inlet 52 is disposed at one end of the air outlet channel 5 far from the air outlet 51, and the valve plate mechanism 6 is disposed at the position of the air outlet inlet 52 to perform on-off operation on the air outlet channel 5, so as to communicate the first flow channel 21 with the second flow channel 22, or communicate the first flow channel 21, the second flow channel 22, and the third flow channel 23.

Specifically, valve mechanism 6 includes drive module and fourth valve block with controller electric connection, and wherein drive module sets up in casing 1, and the fourth valve block setting is in air-out 52 position departments and the fourth valve block is connected with drive module's output.

In this embodiment, in order to effectively reduce the production cost of the product, the arrangement of the first flow channel 21, the second flow channel 22 and the third flow channel 23 may be eliminated in the flow dividing chamber 2, so that the fourth valve plate may be disposed at the air outlet 52, and the driving module drives the fourth valve plate to open and close to realize the on-off of the air outlet channel 5, so that the ventilation device 9 also has two working modes, namely an air inlet mode and an air outlet mode. When the ventilation device 9 is in the air inlet mode, the air outlet channel 5 is disconnected through the action of the fourth valve plate, so that the air inlet channel 3 is communicated with the ventilation channel 4 through the flow dividing cavity 2, and external air is conveyed into the cavity 71 after sequentially passing through the air inlet channel 3, the flow dividing cavity 2 and the ventilation channel 4. In addition, when ventilation unit 9 is in the air-out mode, open air-out passageway 5 through the action of fourth valve block, so can make inlet air duct 3, reposition of redundant personnel chamber 2, ventilation channel 4, be linked together between the air-out passageway 5, thereby through ventilation channel 4 with the gaseous water conservancy diversion of inner bag 7 the inside to reposition of redundant personnel intracavity 2, simultaneously through inlet air duct 3 with the leading-in reposition of redundant personnel intracavity 2 of outside air so that the gas of outside air and inner bag 7 mixes in reposition of redundant personnel chamber 2, so can promote the steam condensation in the inside gas of cavity 71, then the mist is outwards discharged through air-out passageway 5.

Preferably, the air intake device further comprises an air intake fan 32 and a ventilation fan 42 electrically connected to the controller, wherein the air intake fan 32 is disposed in the air intake channel 3, and the ventilation fan 42 is disposed in the ventilation channel 4.

In this embodiment, the air intake fan 32 is disposed in the air intake channel 3, the air intake fan 32 sucks air from the outside to introduce external air into the air intake channel 3 during operation, the ventilation fan 42 is disposed in the ventilation channel 4, and the ventilation fan 42 sucks air from the inside of the cavity 71 to introduce air in the cavity 71 into the ventilation channel 4 during operation, thereby completing the exhaust operation of the cavity 71. In addition, when the ventilation device 9 is in the air intake mode, the air intake fan 32 sucks external air into the air intake channel 3, the ventilation fan 42 does not work at this time, and the air outlet channel 5 is in a closed state, so that the external air is pumped into the air intake channel 3, then sequentially passes through the air intake channel 3, the diversion cavity 2 and the ventilation channel 4, and then is conveyed into the inner container 7; when the ventilation device 9 is in the air-out mode, the ventilation fan 42 sucks internal air from the cavity 71, the air intake fan 32 sucks external air into the air intake channel 3, the external air and exhaust gas of the cavity 71 are mixed at the communication position of the first flow channel 21 and the second flow channel 22 to promote the exhaust gas of the cavity 71 to perform vapor condensation, and then the mixed gas sequentially passes through the third flow channel 23 and the air-out channel 5 and is discharged to the outside.

Specifically, a heater 33 is further included, and the heater 33 is provided in the intake air passage 3 to heat air introduced from the outside.

In this embodiment, the ventilation device 9 is additionally provided with a heater 33 electrically connected with the controller, the heater 33 is preferably arranged in the air inlet channel 3 and is located between the air inlet fan 32 and the diversion cavity 2, when the ventilation device 9 is in an air inlet mode, the air inlet fan 32 is started to work to introduce external air into the air inlet channel 3, the heater 33 is started to heat air entering the air inlet channel 3 at the same time, so as to generate hot air, and then the hot air is conveyed into the cavity 71 through the air inlet channel 3, the diversion cavity 2 and the ventilation channel 4 in sequence, so as to effectively improve the drying efficiency and the drying effect; in addition, when the ventilation device 9 is in the air-out mode, the heater 33 is turned off to stop the operation of the heater 33, and after the external air enters the branch chamber 2 through the air inlet channel 3, the external air and the exhaust gas inside the cavity 71 are mixed and condensed, and then are discharged outside through the air outlet channel 5, so that the operation of mixing and condensing the external air and the exhaust gas inside the cavity 71 is facilitated.

Example two:

as shown in fig. 3, the present embodiment provides a drying system for a kitchen appliance, the kitchen appliance has a liner 7, a hollow cavity 71 is defined in the liner 7, and includes a circulating device 8 and/or a ventilating device 9 as described in the first embodiment, wherein the circulating device 8 and the ventilating device 9 are respectively disposed on two opposite sides of the cavity 71, or the ventilating device 9 is respectively disposed on two opposite sides of the cavity 71, and two airflows with different flowing directions are formed in the liner 7 by the cooperative action of the ventilating device 9 and the circulating device 8, or by the cooperative action of the two ventilating devices 9.

In the present embodiment, the drying system is described by way of example with a ventilation device 9 provided on each of the opposite sides of the chamber 71, which will not be described in detail, namely, the ventilation devices 9 are arranged on the two opposite sides of the cavity 71 in a mirror image manner, the ventilation devices 9 on the two sides of the cavity 71 are respectively and electrically connected with the controller, the controller controls the two ventilation devices 9 to execute corresponding working instructions, two airflows with different flowing directions are formed in the inner container 7 through the action of the two ventilation devices 9, so that the difference between the windward side and the leeward side of the tableware can be avoided, thereby being beneficial to drying the tableware between the inner side and the outer side of the tableware and at different positions in the inner container 7, further improving the overall drying performance of the dish-washing machine, the air dryer has reasonable design, and can form two air flows in different flowing directions in the inner container 7, thereby effectively improving the drying efficiency and uniformity of different positions in the inner container 7.

In this embodiment, the kitchen appliance is a dishwasher, a disinfection cabinet, a steam box, an oven, a steaming oven, a micro-steaming box, a micro-steaming oven or a steaming and baking all-in-one machine, but not limited to the above devices, and other devices can be selected according to actual requirements. In this embodiment, when the kitchen appliance is a dishwasher, the dishwasher may be a floor type dishwasher, a table type dishwasher, a drawer type dishwasher, or a sink type dishwasher, and of course, other types of dishwashers may be selected according to actual needs. Furthermore, the dishwasher has a tank 7, inside which tank 7 a hollow chamber 71 is defined, as ventilation means 9 are provided mirror-image-wise on opposite sides of chamber 71, i.e. on the left side of chamber 71 a first ventilation means 9 is provided, and on the right side of chamber 71 a second ventilation means 9 is provided.

In this embodiment, when the first ventilation device 9 is in the air intake mode, the second ventilation device 9 is in the air outtake mode, that is, after the first ventilation device 9 introduces the external air into the cavity 71, the air entering the cavity 71 flows from left to right, and then is discharged through the second ventilation device 9; when the first ventilation device 9 is in the air-out mode, the second ventilation device 9 is in the air-in mode, that is, after the second ventilation device 9 introduces the external air into the cavity 71, the air entering the cavity 71 flows from right to left, and then is discharged outside through the first ventilation device 9, so that two airflows in different flowing directions can be formed in the inner container 7.

Example three:

as shown in fig. 4, the present embodiment provides a drying system for a kitchen appliance, the kitchen appliance has a liner 7, a hollow cavity 71 is defined in the liner 7, and includes a circulating device 8 and/or a ventilating device 9 as described in the first embodiment, wherein the circulating device 8 and the ventilating device 9 are respectively disposed on two opposite sides of the cavity 71, or the ventilating device 9 is respectively disposed on two opposite sides of the cavity 71, and two airflows with different flowing directions are formed in the liner 7 by the cooperative action of the ventilating device 9 and the circulating device 8, or by the cooperative action of the two ventilating devices 9.

Specifically, the flow-through device 8 comprises a flow-through duct 81, one end of the flow-through duct 81 communicating with the cavity 71 and the other end communicating with the outside.

Unlike the second embodiment, the drying system in this embodiment is described by way of example with the ventilation device 9 and the circulation device 8 respectively disposed on the opposite sides of the cavity 71, and the description of the other parts is omitted. In addition, circulation device 8 includes circulation pipeline 81, circulation pipeline 81 one end is linked together with cavity 71, the other end is linked together with the outside, ventilation unit 9 and controller electric connection, controller control ventilation unit 9 carries out corresponding work order, the air current of two kinds of different flow directions is formed in order to form in inner bag 7 through ventilation unit 9 and circulation device 8's common cooperation action, so can avoid the difference between tableware because of windward side and leeward side, thereby do benefit to between the inside and outside of tableware and be located the tableware of different positions departments in inner bag 7 and dry, and then improve the whole drying performance of dish washer, its reasonable in design, can form the air current of two kinds of different flow directions in inner bag 7, thereby effectively promote drying efficiency and the homogeneity of different positions departments in inner bag 7.

In this embodiment, the kitchen appliance is also described as an example of a dishwasher, and the description of the kitchen appliance is omitted. The dishwasher has an inner container 7, a hollow cavity 71 is defined inside the inner container 7, a ventilation device 9 is arranged on the left side of the cavity 71, and a circulation device 8 is arranged on the right side of the cavity 71.

In this embodiment, when the ventilation device 9 is in the air intake mode, the ventilation device 8 is in the air exhaust mode, that is, after the ventilation device 9 introduces the external air into the cavity 71, the air entering the cavity 71 flows from left to right, and then is discharged outside through the circulation channel of the ventilation device 8; when ventilation unit 9 is the air-out mode, then circulation device 8 is the air inlet mode, starts ventilation unit 9 promptly and works, through circulation device 8 with the leading-in cavity 71 of outside air back, the air that gets into in the cavity 71 flows left by right, then discharges outward through ventilation unit 9's air-out passageway 5, so can form the air current of two kinds of different flow directions in inner bag 7.

Example four:

as shown in fig. 5, the present embodiment provides a drying system for a kitchen appliance, which is similar to the embodiment, and the kitchen appliance is also described by way of example of a dishwasher, and the description of the other parts is omitted. The dishwasher has an inner container 7, a hollow cavity 71 is defined inside the inner container 7, a ventilation device 9 is arranged on the left side of the cavity 71, and a circulation device 8 is arranged on the right side of the cavity 71.

In contrast to the third exemplary embodiment, the flow-through device 8 further comprises a flow-through fan 82, the flow-through fan 82 being arranged in the flow-through duct 81.

In this embodiment, a circulating fan 82 is additionally arranged in the circulating pipeline 81, the circulating fan 82 is electrically connected with the controller, and the controller controls the co-operation of the circulating fan 82 and the ventilation device 9 to further improve the stability of the drying system. Ventilation unit 9, circulation device 8 respectively with controller electric connection, controller control ventilation unit 9, circulation device 8 carries out corresponding work order, the air current of two kinds of different flow direction is formed in inner bag 7 in the cooperation action jointly through ventilation unit 9 and circulation device 8, so can avoid the difference of tableware because of between windward side and the leeward side, thereby do benefit to and carry out the drying to the tableware between the inside and outside of tableware and be located inner bag 7 different positions department, and then improve the whole drying performance of dish washer, reasonable in design, can form the air current of two kinds of different flow direction in inner bag 7, thereby effectively promote drying efficiency and the homogeneity of different positions department in inner bag 7.

In this embodiment, when the ventilation device 9 is in the air intake mode, the ventilation device 8 is in the air exhaust mode, that is, after the ventilation device 9 introduces the external air into the cavity 71, the air entering the cavity 71 flows from left to right, and then is discharged outside through the circulation channel of the ventilation device 8; when ventilation unit 9 is the air-out mode, then circulation device 8 is the air inlet mode, starts circulation device 8 and ventilation unit 9 simultaneously promptly and carries out work, and circulation device 8 is back in with the leading-in cavity 71 of outside air, and the air that gets into in the cavity 71 flows by turning left from the right, then discharges outward through air-out channel 5 of ventilation unit 9, so can form the air current of two kinds of different flow directions in inner bag 7.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.

Claims

1. A ventilation device mounted on a chamber (71), comprising:

a housing (1);

a distribution chamber (2), the distribution chamber (2) being arranged within the housing (1);

the air inlet channel (3) is arranged in the shell (1) and is provided with an air inlet (31) communicated with the outside, and one end, far away from the air inlet (31), of the air inlet channel (3) is communicated with the shunting cavity (2);

the ventilation channel (4) is arranged in the shell (1) and is provided with a ventilation opening (41) communicated with the cavity (71), and one end, far away from the ventilation opening (41), of the ventilation channel (4) is communicated with the diversion cavity (2);

the air outlet channel (5) is arranged in the shell (1) and is provided with an air outlet (51) communicated with the outside, and one end, far away from the air outlet (51), of the air outlet channel (5) is communicated with the flow dividing cavity (2);

the valve plate mechanism (6) is arranged in the shell (1) so as to enable the air inlet channel (3) to be communicated with the ventilation channel (4), or enable the air inlet channel (3), the ventilation channel (4) and the air outlet channel (5) to be communicated;

and the controller is electrically connected with the valve plate mechanism (6).

2. The ventilation device according to claim 1, further comprising a first flow channel (21), a second flow channel (22) and a third flow channel (23) which are arranged in the diversion cavity (2) side by side, wherein bottoms of the first flow channel (21), the second flow channel (22) and the third flow channel (23) are communicated with each other, and the valve plate mechanism (6) is arranged in the housing (1) so that the air inlet channel (3) is communicated with the ventilation channel (4) after sequentially passing through the second flow channel (22) and the third flow channel (23), or the air inlet channel (3), the first flow channel (21), the second flow channel (22), the ventilation channel (4), the third flow channel (23) and the air outlet channel (5) are communicated with each other.

3. The ventilation device according to claim 2, wherein the valve plate mechanism (6) comprises a first valve plate (61), a second valve plate (62), a third valve plate (63) and a driving motor (64), wherein the air inlet channel (3) and the ventilation channel (4) are arranged side by side, the first valve plate (61) is hinged to one end of the air inlet channel (3) to control the connection and disconnection between the first flow channel (21) and the air inlet channel (3), the second valve plate (62) is hinged to the connection part between the air inlet channel (3) and the ventilation channel (4) to control the connection and disconnection between the second flow channel (22), the air inlet channel (3) and the ventilation channel (4), and the third valve plate (63) is hinged to the ventilation channel (4) at one end far away from the second valve plate (62) to control the third flow channel (23, the third valve plate (62), The ventilation channel (4) is connected with the air outlet channel (5) in an on-off mode, the driving motor (64) is electrically connected with the controller, and the output end of the driving motor (64) is connected with the first valve plate (61), the second valve plate (62) and the third valve plate (63) respectively.

4. A ventilation device according to claim 3, wherein the driving motor (64) is disposed in the housing (1), and an output end of the driving motor (64) passes through the first valve plate (61) and the second valve plate (62) in sequence and then is connected to the third valve plate (63), or passes through the third valve plate (63) and the second valve plate (62) in sequence and then is connected to the first valve plate (61).

5. The ventilation device according to claim 1, wherein an outlet inlet (52) is disposed at an end of the outlet channel (5) away from the outlet (51), and the valve plate mechanism (6) is disposed at the outlet inlet (52) to perform on-off operation on the outlet channel (5), so as to communicate the first flow channel (21) with the second flow channel (22), or communicate the first flow channel (21), the second flow channel (22), and the third flow channel (23).

6. A ventilation device according to claim 5, characterized in that the valve plate mechanism (6) comprises a driving module and a fourth valve plate electrically connected to the controller, wherein the driving module is disposed in the casing (1), the fourth valve plate is disposed at the outlet (52) and is connected to the output end of the driving module.

7. The ventilation device according to claim 1, further comprising an air intake blower (32) and a ventilation blower (42) electrically connected to the controller, respectively, wherein the air intake blower (32) is disposed in the air intake channel (3) and the ventilation blower (42) is disposed in the ventilation channel (4).

8. A ventilating device according to any of claims 1-7, further comprising a heater (33), said heater (33) being arranged in said air supply duct (3) to heat air introduced from outside.

9. A drying system for a kitchen appliance having a liner (7), in which a hollow chamber (71) is defined in the liner (7), characterized in that it comprises a circulation device (8) and/or a ventilation device (9) according to any one of claims 1 to 8, wherein the circulation device (8) and the ventilation device (9) are respectively arranged on opposite sides of the chamber (71), or one ventilation device (9) is respectively arranged on opposite sides of the chamber (71), and two airflows having different directions of flow are formed in the liner (7) by the co-operation of the ventilation device (9) and the circulation device (8), or by the co-operation of the two ventilation devices (9).

10. Drying system of a kitchen appliance according to claim 9, characterised in that said circulating means (8) comprise a circulating duct (81), said circulating duct (81) communicating with said cavity (71) at one end and with the outside at the other end.

11. Drying system of a kitchen appliance according to claim 10, characterised in that the circulating means (8) further comprise a circulating fan (82), the circulating fan (82) being arranged inside the circulating duct (81).