CN106466170B - Air path circulating device for dish washing machine and dish washing machine - Google Patents

Air path circulating device for dish washing machine and dish washing machine Download PDF

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Publication number
CN106466170B
CN106466170B CN201510520829.9A CN201510520829A CN106466170B CN 106466170 B CN106466170 B CN 106466170B CN 201510520829 A CN201510520829 A CN 201510520829A CN 106466170 B CN106466170 B CN 106466170B
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air
air inlet
duct
side wall
box
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CN106466170A (en
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董媛媛
姜战存
李海英
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Qingdao Haier Dishwasher Co Ltd
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Qingdao Haier Dishwasher Co Ltd
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Abstract

The invention aims to provide an air path circulating device for a dish washer, which comprises an air inlet channel and an air outlet channel, wherein the air outlet channel is arranged at the top of the dish washer, one end of the air outlet channel is provided with a first air outlet, the air outlet of a connecting inner container is communicated with a washing chamber, the other end of the air outlet channel is provided with a second air outlet, and the air outlet channel is communicated with the outside through an exhaust plate on the side wall of a shell; the air inlet duct is arranged in a space between the side wall of the lower liner of the dish washer and the side wall of the shell, and comprises an air duct box, an air duct cover plate fixed on the air duct box and a fan arranged in the air inlet duct, wherein one end of the air inlet duct is a first air inlet, is communicated with the external environment through an air hole on the side wall of the shell, the other end of the air inlet duct is a second air inlet, is connected with the air inlet of the liner arranged on the side wall of the liner and is communicated with the washing chamber, and the air inlet of the liner is positioned at the lower part of the side wall of the liner and above the washing water surface of the washing chamber.

Description

Air path circulating device for dish washing machine and dish washing machine
Technical Field
The present invention relates to an air path circulating device, and more particularly, to an air path circulating device installed on a household dish washer, and a dish washer equipped with the same.
Background
The dish washer has a plurality of functions such as disinfection operation because of good cleaning effect, saves time and labor, and is purchased by a plurality of families. In recent years, dish washers with a drying function have been increasingly popular with consumers due to their convenience in use. The forced drying function is generally added in the dish washer, the air duct structure and the heating function are introduced, the fresh air with high drying temperature is introduced into the washing chamber, and the hot air is blown into the tableware, so that the air drying of the tableware is quickened, and the washing and drying period is reduced. However, as the heating device is needed to be added, the whole volume of the dish washer is increased, the air duct structure is complex, and meanwhile, the power consumption and the cost of the dish washer are increased.
Therefore, the air path circulating device with simple structure, small occupied space, high safety performance and low cost is designed in a limited space, and the air path circulating device becomes a target pursued by each dish washer design and manufacturer.
Disclosure of Invention
The invention mainly aims to solve the problems and the defects, and provides the air path circulating device for the dish washer, which can reasonably utilize the limited space in the dish washer, has a simple structure, is low in cost and has no potential safety hazard.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the invention aims to provide an air path circulating device for a dish washer, which comprises an air inlet channel and an air outlet channel, wherein an air inlet of the inner container and an air outlet of the inner container are formed in the inner container, the air inlet of the inner container is connected with the air inlet channel, the air outlet of the inner container is connected with the air outlet channel, the air outlet channel is arranged at the top of the dish washer, one end of the air outlet channel is a first air outlet, the air outlet of the inner container is connected and communicated with a washing chamber, and the other end of the air outlet channel is a second air outlet, and the air outlet of the inner container is communicated with the outside through an exhaust plate on the side wall of a shell; the air inlet duct is arranged in a space between the side wall of the lower liner of the dish washer and the side wall of the shell, and comprises an air duct box, an air duct cover plate fixed on the air duct box and a fan arranged in the air inlet duct, wherein one end of the air inlet duct is a first air inlet, is communicated with the external environment through an air hole on the side wall of the shell, the other end of the air inlet duct is a second air inlet, is connected with the air inlet of the liner arranged on the side wall of the liner and is communicated with the washing chamber, and the air inlet of the liner is positioned at the lower part of the side wall of the liner and above the washing water level of the washing chamber. The heating device is not arranged in the air inlet duct, the high temperature in the washing chamber after the washing procedure is finished is utilized, fresh air is introduced to dry tableware, the air path circulation is a mode of upper air inlet and lower air exhaust, the circulation path is long, the drying effect is good, the efficiency is high, the air inlet duct is simple in structure, the volume of the air inlet duct can be effectively reduced, the safety is good, the cost is low, and the energy consumption is low.
Further, a check sheet is arranged in the air inlet duct, the section shape and the size of the check sheet are the same as those of the air inlet duct, the check sheet can rotate in the air inlet duct, the opening direction of the check sheet is consistent with the air supply direction of the fan, and the check sheet seals the whole air inlet duct in a normal state.
Further, one end of the check sheet is provided with a rotating shaft, a shaft pin arranged in the air duct box is inserted into a shaft hole of the rotating shaft, so that the check sheet is fixed in the air duct box and can rotate around the shaft pin, one end of the check sheet is contacted with one side wall of the air duct box and can rotate on the side wall, the other end of the check sheet is supported on the other side wall of the air duct box, and the other two end faces of the check sheet are respectively contacted with the bottom wall of the air duct box and the air duct cover plate, so that the whole air inlet duct is sealed in a normal state.
Further, the check sheet is of an open box-shaped structure and comprises a bottom plate, a rear baffle and a left/right side baffle which are connected with each other, one end of the bottom plate, which is not connected with the rear baffle, is bent upwards and extends out of the left/right side baffle for a certain distance, the bottom plate is the bottom of the box-shaped structure, a rotating shaft with a shaft hole is arranged at the joint of the left/right side plate and the bottom plate, a shaft pin in the air channel box is inserted into the shaft hole to fix the check sheet in the air channel box, the outer side of the rotating shaft is contacted with the side wall of the air channel box and can rotate in the air channel box, the left/right side baffle is respectively contacted with the bottom wall of the air channel box and the air channel cover plate, the open end of the box-shaped structure faces towards the second air inlet, and the bent end is lapped on the side wall of the air inlet box, and the whole air inlet channel is sealed in a normal state.
Further, a rotation shaft of the check sheet is provided with a limiting part for limiting the reverse rotation of the check sheet.
Further, the air inlet duct is approximately < shaped and comprises a first air inlet part, a bending part and a second air inlet part which are connected with each other, the bending part is of a corner structure, and the check sheet is arranged at the bending part.
Further, the air inlet of the inner container is arranged at the lower part of the rear side wall of the inner container, and the air inlet duct is fixed on the rear side wall of the inner container at the position below the tableware rack above the washing water surface of the washing chamber.
Further, the air outlet of the inner container is arranged at the top of the rear side wall of the inner container and/or at the rear side of the top wall of the inner container, and the exhaust plate is arranged at the upper part of the rear side wall of the outer shell.
Further, a guide plate and/or a condensation cooling device are arranged in the air outlet duct.
Another object of the present invention is to provide a dishwasher in which any one of the air path circulation devices as described above is provided.
In summary, the air path circulating device for the dish washer provided by the invention has the following advantages compared with the prior art:
1. The air inlet duct is lower than the air outlet duct to form an air path circulation path of bottom air inlet and top air outlet, and the high temperature of the washing chamber and the introduced fresh air are utilized to air-dry the surface of the tableware after the cleaning procedure is finished, so that the air path is long, the drying and air-drying effects are good, the cost is low, the volume is small, and the power consumption is low;
2. the heating device is not arranged, so that the air inlet duct is simple in structure and the volume of the air inlet duct is effectively reduced;
3. The condensing device is arranged in the air outlet duct, so that the high-temperature and high-humidity gas in the washing chamber is cooled and dehumidified, the damage of high-temperature air to the environment or operators is avoided, and the safety performance is high;
4. The check sheet is arranged, and the check sheet moves unidirectionally through the limit structure and the lap joint structure, so that high-temperature water drops, foam or other sundries splashed into the washing chamber are prevented from entering the air duct to cause damage to the fan, and high-temperature and high-humidity air is prevented from being dissipated out of the dish washer through the air inlet duct in the cleaning process, so that energy loss is increased or the fan is damaged, and meanwhile, external impurities are further isolated from entering the washing chamber;
5. The air duct is in a shape of a rectangle, on one hand, the length of the air duct is increased, and on the other hand, splashed high-temperature water drops, foam or other sundries can slide into the washing chamber under the action of gravity.
Description of the drawings:
Fig. 1: the invention relates to an integral installation schematic diagram of an air path circulating device for a dish washer
Fig. 2: the invention relates to a schematic diagram of an air inlet duct in an air path circulating device for a dish washer
Fig. 3: the invention relates to a schematic diagram of an air duct box in an air path circulating device for a dish washer
Fig. 4: the invention relates to a schematic diagram of an air duct cover plate in an air path circulating device for a dish washer
Fig. 5: the invention relates to a reverse stop sheet schematic diagram in an air path circulating device for a dish washer
Fig. 6: the invention relates to a schematic diagram of an air outlet duct in an air path circulating device for a dish washer
Fig. 7: the air duct box and air duct cover plate sealing section schematic diagram in the air duct circulating device for the dish washer
Wherein: the air inlet duct 1, the air outlet duct 2, the second air outlet 21, the air outlet hole 22, the air outlet plate 23, the guide plate 24, the air hole 3, the air duct box 4, the second air inlet 41, the limit boss 411, the clamping column 412, the box body side wall 42, the fixing seat 43, the first guide surface 431, the clamping groove 44, the locating block 45, the screw seat 46, the shaft pin 47, the first air inlet portion 48, the second air inlet portion 49, the bending portion 40, the outer bending 401, the inner bending 402, the second bending portion 403, the air duct cover plate 5, the locating hole 51, the buckle 52, the second guide surface 521, the air duct cover plate body 53, the check sheet 6, the rotating shaft 61, the rear baffle plate 62, the left/right side baffle plate 63, the bending 64, the bottom plate 65, the shaft hole 66, the limit portion 67 and the shell side wall 7.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1 to 7, the invention provides an air path circulating device for a dish washer, which comprises an air inlet channel 1 and an air outlet channel 2, wherein an air inlet of the inner container and an air outlet of the inner container (not shown in the figure) are formed in the side wall of the inner container, the air inlet of the inner container is connected with the air inlet channel 1, the air outlet of the inner container is connected with the air outlet channel 2, the air outlet channel 2 is arranged at the top of the dish washer, one end of the air outlet channel 2 is a first air outlet (not shown in the figure), the air outlet of the inner container is connected with a washing chamber, and the other end of the air outlet channel is a second air outlet (not shown in the figure) and is communicated with the outside through an exhaust plate 23 on the side wall 7 of the outer shell; the air inlet duct 1 is arranged in a space between the side wall of the lower liner of the dish washer and the side wall 7 of the shell, and comprises an air duct box 4, an air duct cover plate 5 fixed on the air duct box 4 and a fan arranged in the air inlet duct 1, wherein one end of the air inlet duct 1 is a first air inlet (not shown in the figure), is communicated with the external environment through an air hole 3 arranged on the side wall 7 of the shell, and the other end of the air inlet duct 1 is a second air inlet 41, is connected with the air inlet of the liner arranged on the side wall of the liner and is communicated with a washing chamber, and the air inlet of the liner is positioned at the lower part of the side wall of the liner and above the washing water surface of the washing chamber. The heating device is not arranged in the air inlet duct 1, after a washing program is finished, residual high temperature in the washing chamber is used for heating low-temperature drying air introduced under the action of a fan, the heated drying air moves from the lower part to the upper part of the washing chamber, the surface of the washed tableware is dried, the drying efficiency is high, and the heating device is not arranged, so that the air inlet duct 1 is simple in structure, the volume of the air inlet duct 1 can be effectively reduced, energy is saved, and the temperature in the washing chamber and the temperature of the tableware can be reduced while the surface of the tableware is dried.
As shown in fig. 2, the air intake duct 1 includes a first air intake portion 48, a bending portion 40 and a second air intake portion 49 that are sequentially connected to each other, where the bending portion 40 is integrally formed by respectively connecting the first air intake portion 48 and the second air intake portion 49, and has a simple structure and high overall strength, and the bending portion 40 is in a corner structure, and the corner is rounded, so that the air intake duct 1 is generally < shaped.
The end of the first air inlet portion 48 is open and is a first air inlet (not shown in the figure), and correspondingly, a plurality of air holes 3 are formed in the side wall 7 of the housing, and under the action of the fan, normal-temperature air (low-temperature dry air relative to air in the washing chamber after the washing procedure is finished) in the external environment enters the first air inlet through the air holes 3, so that the air enters the washing chamber through the air inlet duct 1. The first air inlet is provided with a grille (not shown in the figure), the inner side of the grille is provided with a fan in a clamping manner, in the embodiment, the fan adopts an induced draft fan, foam is laid on the outer side of the grille, and impurities such as dust entering from the air hole 3 are prevented from entering the air inlet duct 1 under the action of the fan, so that the air enters a washing chamber and contaminates washed tableware. The end of the second air inlet portion 49 is closed, a second air inlet 41 is formed by opening in the direction facing the side wall of the inner container, a limiting boss 411 is formed between the second air inlet 41 and the end of the second air inlet portion 49 which is closed, a plurality of clamping columns 412 are integrally formed on one side of the limiting boss 411 facing the side wall of the inner container, the clamping columns 412 are inserted into corresponding clamping grooves (not shown in the figure) on the air inlet of the inner container until the limiting boss 411 and the side wall of the inner container are tightly attached together, after being clamped and installed, the air inlet duct 1 is communicated with the washing chamber, and an air inlet mask can be arranged at the air inlet of the inner container for preventing moisture, foam or other impurities in the washing chamber from entering the air inlet duct 1 through the clamping columns 412 or entering the space between the side wall of the inner container and the side wall 7 of the outer shell. Sealing strips are arranged between the limiting boss 411 and the side wall of the inner container and/or between the second air inlet 41 and the air inlet of the inner container, so that water vapor is prevented from entering between the side wall of the inner container and the side wall 7 of the outer shell through the limiting boss 411, damage to other parts is avoided, and the sealing strips have certain elasticity, so that elastic installation can be realized during on-site operation, and the parts are prevented from being damaged.
The first air inlet portion 48 and the second air inlet portion 49 are connected through the bending portion 40, the second air inlet portion 49 is obliquely arranged to enable water drops and other foam sundries splashed in from the liner air inlet and the second air inlet 41 to be blocked by the side wall of the second air inlet portion 49, and the sundries which are not blocked can be blocked by the side wall of the bending portion 40 and cannot enter the first air inlet portion 48, so that a fan can be effectively protected. The high-temperature and high-humidity gas entering through the air inlet of the inner container and the second air inlet 41 is blocked by the second air inlet portion 49 and the bending portion 40 in two steps to form turbulence, so that the cooling effect is realized, water drops are formed, the water drops slide into the washing chamber again under the action of gravity, and the water drops cannot enter the first air inlet portion 48, so that damage is caused to a fan, and energy loss is reduced.
The air inlet duct 1 comprises a duct box 4 and a duct cover plate 5 which is covered on the duct box 4 and is fixedly connected with the duct box, as shown in fig. 3 and 4, a plurality of fixing seats 43 are arranged on the upper portion of the outer side of a side wall 42 of the duct box 4, the middle of each fixing seat 43 is hollowed out to form a clamping groove 44, a first guide surface 431 which is inclined is arranged on the upper portion of each fixing seat 43 and faces the direction of the duct cover plate 5, and positioning blocks 45 are arranged on the top surfaces of the walls on the left side and the right side of the side wall 42 of the duct box. The side wall of the air duct cover plate 5 is provided with a protruding buckle 52, one surface of the buckle 52 facing the direction of the air duct box 4 is a second guide surface 521 which is an inclined surface, the other surface is a platform, and the air duct cover plate body 53 is provided with a positioning hole 51. During installation, the positioning block 45 stretches into the positioning hole 51, accurate positioning and limiting functions of the air duct cover plate 5 and the air duct box 4 are achieved, the air duct cover plate 5 is continuously pressed towards the direction of the air duct box 4 after positioning, the second guide surface 521 slides downwards on the first guide surface 431, the two inclined surfaces are contacted, the inclined surfaces play a guiding role, operation is simpler, effort is small, and finally the buckle 52 slides into the clamping groove 44 and is fixed, so that fixed installation of the air duct cover plate 5 and the air duct box 4 is achieved. Besides the function of positioning the positioning block 45 and the positioning hole 51, the positioning block can be used for realizing faster and more convenient installation, the positioning block can also be used for realizing the function of limiting and fixing after installation, so that displacement between the air duct box 4 and the air duct cover plate 5 is prevented, sealing is not tight, and interference fit is realized between the buckle 52 and the clamping groove 44, so that the sealing effect is further enhanced. The air duct cover plate 5 and the air duct box 4 are effectively sealed and fixed, and high-temperature and high-humidity gas, water drops or other sundries entering the air inlet air duct 1 can be prevented from entering between the side wall of the inner container and the side wall 7 of the outer shell through gaps between the air duct box 4 and the air duct cover plate 5, so that other parts, particularly electric parts, are damaged. In order to further enhance the sealing effect, as shown in fig. 7, a sealing rib is provided on the top surface of the side wall 42 of the air duct box 4 and the place against the air duct cover plate 5, and a C angle with unequal sides is provided on the sealing rib, and when the air duct box is installed, the C angle is inserted into the corresponding reverse C angle provided on the air duct cover plate 5, thereby increasing the sealing area in contact with each other and further enhancing the sealing effect.
As shown in fig. 3, a screw seat 46 is provided at the bottom of the outer side of the side wall 42 of the box body, and when the box is mounted, a screw passes through a screw hole of the screw seat 46 and then fixedly mounts the air inlet duct 1 on the side wall of the inner container.
As shown in fig. 2 and 3, the bending portion 40 is an outer bending portion 401 and an inner bending portion 402 respectively on two sides of the side wall 42 of the box body, and both are arc-shaped, wherein a curvature radius of the outer bending portion 401 is smaller than that of the inner bending portion 402, and a second bending portion 403 is formed at a connection position of the outer bending portion 401 and the side wall of the first air inlet portion 48, that is, a rounding process is performed again when the side wall of the outer bending portion 401 and the side wall of the first air inlet portion 48 are connected, and a shaft pin 47 is arranged on the inner side of the outer bending portion 401.
Inside the duct box 4, a check sheet 6 shown in fig. 5 is further provided at the bending portion 40, as shown in fig. 5, the check sheet 6 includes a bottom plate 65, a back plate 62, and a left/right side plate 63 connected to each other, the connection portion between the left/right side plate 63 and the back plate 62 is a rotation shaft 61, the end portion of the bottom plate 65, which is not connected to the back plate 62, is tilted upward to form an arc-shaped bending 64, so that the back plate 62, the left/right side plate 63, the bottom plate 65 and the bending 64 form an open box-shaped structure, the bottom plate 65 is the bottom of the box-shaped structure, and the end portion of the bending 64 extends out of the left/right side plate 63 by a distance. The connection of the bottom plate 65, the tailgate 62 and the shaft 61 forms a stopper 67, and the stopper 67 is located at one end of the bottom of the box-like structure. The shaft pin 47 in the air duct box 4 is inserted into the shaft hole 66 at the central part of the shaft 61, so that the check sheet 6 is fixed at the bending part 40 of the air duct box 4, namely, fixed on the side wall 42 of one side box body of the air duct box, the bottom surface of the box-shaped structure, namely, the bottom surface of the bottom plate 65, is punched towards the first air inlet, the opening end of the box-shaped structure faces the second air inlet 41, the limiting part 67 is abutted against the inner side wall of the outer bending part 401, the shaft 61 is contacted with the same part of the side wall of the outer bending part 401, and the curvature radiuses of the shaft 61 and the outer bending part are the same or similar, so that the shaft 61 can rotate around the shaft pin 47 in the state that the outer bending part 401 is contacted, and can only be opened unidirectionally under the effect of the limiting part 67, and under the action of gravity, the part of the bending part 64 extending out of the left/right baffle 63 can further overlap with the side wall of the second air inlet part 49, namely, the bending part 64 abuts against the side wall 42 of the other side wall of the air duct box 4, which is not provided with the shaft pin 47, so that the opening direction of the check sheet 6 is further limited. The left/right side baffle 63 contacts with the inner side of the air duct cover plate body 53 and the inner side of the bottom wall of the air duct box 4 respectively, so that the whole air inlet duct 1 is closed, meanwhile, under the leaning action of the limiting part 67 and the bending part 64, the non-return piece 6 can only be opened unidirectionally through two steps, namely, the opening direction is consistent with the air supply direction of the fan, when the fan does not work, the non-return piece 6 can automatically return to the original position under the action of gravity without a reset structure, the air inlet duct 1 is closed, when the fan works, the non-return piece 6 rotates to open the air inlet duct 1 along the air supply direction under the action of wind force, the structure of the air inlet duct 1 is further simplified, and the whole cost is also reduced. Since the bend 64 overlaps the inner bend 402 and the side wall of the second air inlet portion 49, that is, the bend 64 abuts against the side wall 42 of the box body on the other side of the air duct box 4 where the shaft pin 47 is not provided, the air cannot fail under the action of general external force unless the component structure is damaged, and the stop portion 67 further limits the opening direction of the non-return piece 6, the non-return piece can only be opened in the direction of the second air inlet 41, that is, the opening direction is consistent with the air supply direction of the fan, and it should be noted that when the fan is not in operation, even if air flows in the external environment, the air flows into the air inlet duct 1 through the air hole 3, but the air cannot enter the washing chamber due to the fact that the wind force is small enough to resist the gravity action of the non-return piece 6, so that the occurrence of noise is avoided.
It should be noted that, in this embodiment, the check sheet 6 is designed into an open box-shaped structure, and in the specific design and production, the check sheet 6 may be any structural form, so long as the size and shape of the cross section of the air inlet duct 1 are consistent, and in the air inlet duct 1, the check sheet is rotatably fixedly connected with the air inlet duct 1, and ensures unidirectional opening, that is, the opening direction is consistent with the air supply direction of the fan, and in a natural state, the whole air inlet duct 1 is closed. For example, the check sheet 6 is only one sheet-like structure. The simple check sheet 6 is provided with a rotating shaft 61 at one end, a shaft pin 47 in the air inlet duct 1 is inserted into a shaft hole 66 of the rotating shaft 61, the check sheet 6 is fixed in the air inlet duct 1 and can rotate around the shaft pin in the air inlet duct 1, wherein the outer side of the rotating shaft 61, namely one end of the check sheet 6 is contacted with the inner side of the box body side wall 42 of the air inlet duct 1 and can rotate, the other end of the check sheet 6 which is not fixed is freely lapped on the other side of the box body side wall 42, the other two end faces of the check sheet 6 are contacted with the bottom wall of the air inlet duct 1 and the air duct cover plate 5, and the whole air inlet duct 1 is closed by gravity under the natural state.
To further strengthen the overall strength of the check sheet 6 and avoid damage to components, the structures of the rotating shaft 61, the rear baffle 62, the left/right side baffles 63, the bends 64 and the bottom plate 65 can be integrally formed, and the process is simple and the strength of the components is high.
When the air inlet duct 1 is installed in the dishwasher, the embodiment recommends to be installed between the rear side wall of the inner container and the rear shell of the dishwasher, so as to reduce the thickness of the left side and the right side of the dishwasher, so that the whole dishwasher is smaller, as shown in fig. 2, the air inlet duct 1 is designed to be in a < shape, wherein the first air inlet portion 48 is basically horizontally placed, or the first air inlet end is slightly higher, is connected through the corner of the bending portion 40, and the second air inlet portion 49 is inclined downwards, so that on one hand, the duct path can be lengthened, on the other hand, high-temperature water drops, foam or other impurities entering the second air inlet portion 49 in the washing process or water drops formed due to the internal and external temperature difference can slide down under the action of gravity, thereby discharging the air inlet duct 1. The second air inlet portion 49 is slightly longer than the first air inlet portion 48, so that high-temperature and high-humidity gas entering the second air inlet portion 49 has sufficient cooling space to be discharged from the air inlet of the liner, the gas cannot enter the first air inlet duct 48 from a gas state to damage a fan or other components, and water drops or other sundries are prevented from directly entering the first air inlet portion 48 in the opened state of the check sheet 6 due to the fact that the second air inlet portion 49 is too short, so that the fan is damaged.
The reverse stop piece 6 is arranged at the bending part 40 of the air inlet duct 1, and through a two-step limiting structure, the reverse stop piece 6 can be opened along the air supply direction only under the action of a fan, and other resetting structures are not needed, when the air supply is finished or the fan does not work, the reverse stop piece 6 automatically resets and seals the whole air inlet duct 1 under the action of self gravity, so that high-temperature water drops, foam or other sundries splashed by the second air inlet 41 are prevented from entering the first air inlet part 48 of the air inlet duct 1 during the working of the dish washer, the high-temperature and high-humidity water vapor is prevented from entering the first air inlet part 48, the fan is damaged, or foam is disabled, the energy loss is reduced, and meanwhile, the external impurities are further isolated from entering a washing chamber. In the washing process, the inside of the washing chamber is in a high-temperature state, the highest temperature can reach 80 ℃, high-temperature high-humidity gas exists, and in the washing process, the check sheet 6 automatically resets and seals the whole air inlet duct under the action of self gravity and the impact force of the high-temperature high-humidity gas, so that the high-temperature high-humidity gas is prevented from entering and damaging the fan. The check sheet 6 is designed into a box-shaped structure, not only the strength of the whole structure is enhanced, the contact sealing area with the air inlet duct 1 is increased to improve the sealing effect, but also impurities entering the second air inlet portion 49 due to the difference between the internal pressure and the external pressure can be temporarily contained in the box-shaped structure in the washing process, when the fan is started, the check sheet 6 rotates to be opened, a thrust force is applied to the impurities in the box-shaped structure, the impurities move towards the direction of the second air inlet 41, and the impurities finally slide into the washing chamber from the second air inlet 41 along the second air inlet portion 49 under the action of gravity.
In order to realize effective air path circulation, in this embodiment, it is recommended that the air inlet of the inner container fixedly connected with the air inlet duct 1 is arranged at the lower part of the rear side wall of the inner container, the air inlet duct 1 is arranged between the rear side wall of the inner container and the rear wall of the side wall 7 of the outer shell, the air inlet duct 1 is fixed on the rear side wall of the inner container, and in the specific design production, the best fixing position of the air inlet duct 1 is required to be determined according to the installation positions of other structures of the rear back of the inner container, but the air inlet of the inner container is required to be above the washing water level of the washing chamber, the best orientation is above the washing water level, the tableware basket for placing tableware is placed, and the air outlet duct 2 is recommended to be arranged at the top of the top wall and/or the rear side wall of the dish washer, namely, the top of the top wall of the inner container and/or the rear side wall of the inner container, the position is obviously higher than the air inlet of the inner container and is better than the positions of all tableware and cooking utensils to be washed, so that the air path circulation path can be long, drying wind can pass through all tableware and cooking utensils, and drying efficiency is improved.
The inner container air outlet arranged on the side wall of the inner container is fixedly connected with the first air outlet of the air outlet air duct 2, so that the air outlet air duct 2 is communicated with the washing chamber, the other end of the air outlet air duct is a second air outlet, and the second air outlet is communicated with the exhaust plate 23 on the side wall 7 of the shell, thereby exhausting the air in the washing chamber into the external environment. The guide plate 24 is arranged in the air outlet duct 2, so that the air outlet path is prolonged in a limited space, and the high-temperature gas entering the air outlet duct 2 is discharged after being cooled further. The air outlet of the inner container can be arranged on the upper part of the rear side wall of the inner container or directly arranged on the top wall of the inner container, and can be arranged at two places near the rear side wall of the inner container, and the air outlets of the two places are connected with the same air outlet duct 2.
The air inlet duct 1 continuously conveys normal-temperature dry air into the washing chamber under the action of a fan, residual high-temperature heating is carried out in the washing chamber after the washing procedure is finished, and then high-temperature drying is carried out on the surfaces of the tableware and the cooker after washing, and under the action of internal and external pressure differences, high-temperature and high-humidity air enters the air outlet duct 2 through the air outlet of the inner container and the first air outlet, moves along the guide plate 24 under the action of the guide plate 24, is further cooled, and finally is discharged into the external environment through the air outlet 22 formed in the air exhaust plate 23. In order to avoid the damage to operators caused by high-temperature and high-humidity gas coming out of the exhaust holes, the best implementation mode is to arrange the exhaust plate 23 on the rear side wall of the side wall 7 of the dish washer shell, far away from operators, and arrange a condensation cooling device in the air outlet air duct 2, the high-temperature and high-humidity air entering the air outlet air duct 2 is cooled and dehumidified by the condensation cooling device, cooled in a longer air path through the guide plate, and then discharged into the external environment, and meanwhile, a condensed water discharging structure is arranged in the air outlet air duct 2, so that water drops formed by condensation are smoothly discharged. In the case of a limited space for the outlet duct 2, only the guide plate 24 or the condensing device may be provided.
It should be noted that the shape of the air hole 3, the first air inlet, the second air inlet 41, the liner air inlet, the liner air outlet, the first air outlet, the second air outlet, and the air outlet 22 is not limited, the shape of the air hole is circular, polygonal or any other shape, even the specific structure of the guide plate 24 is not limited, any shape and structure suitable for manufacturing, easy to produce and install and not adversely affecting the air inlet and outlet of the device can be applied to the relevant structure of the air path circulation device, including the shape of the air path box 4 and the air path cover plate 5.
The invention also provides a dish washer, wherein the air path circulating device is arranged in the dish washer, and the air path circulating device has the same structure as that described above and is not repeated here.
It should be noted that in the embodiment of the dish washer provided by the invention, the arc-shaped door body of the dish washer is turned upwards and opened through the hinges fixedly connected with the left side wall and the right side wall, the door body is of a double-layer transparent glass structure, the cleaning process and the result can be observed in the cleaning process, and the projection of the bottom of the door body at the bottom of the inner container accounts for 2/3 of the bottom of the inner container. Different from a common dish washer with a front door, the front side wall of the inner container is slightly higher, obviously higher than the front side wall of the inner container of the common dish washer with the front door, and in a washing chamber, an electric box is fixed on the inner side of the front side wall of the inner container, a detergent dispenser is fixed on a top cover of the electric box in a hot-melt manner or integrally formed, the detergent dispenser comprises a brightening agent box, a dish washing powder dispensing box and/or a washing block dispensing box, wherein a brightening agent indicator lamp is arranged beside the brightening agent box to prompt a user of presence or absence of brightening agent, the bottom of the dish washing powder dispensing box is inclined and provided with a dish washing powder outlet, a box body is uncovered and a metering column is arranged in the box body to indicate the using amount of the dish washing powder, and an operator is clearly informed that the box can only place the dish washing powder but not place the washing block. The washing block distribution box is arranged according to the space condition, is generally a through box body, has no bottom and no cover, and directly falls into washing water after being put into the washing block distribution box, so that a user can put the washing block into the washing room through the washing block distribution box, and the problem that the washing block cannot be effectively melted or the washing program is forced to be stopped due to throwing the washing block into the washing room is avoided.
The upper part of the rear side wall of the inner container is provided with a foldable cooker rack which can be folded and stuck to the rear side wall of the inner container at ordinary times, and when the multifunctional cooker rack is used, the multifunctional cooker rack is pulled open to a horizontal state to place a cooker. A salt adding port is arranged on one side of the lower part of the cooker rack, such as the left side below the cooker rack in the embodiment, and salt can be added into a salt cavity fixed at the rear part of the rear side wall of the inner container through a salt adding funnel. In the dishwasher provided by the present invention, the salt chamber and the softener are fixed together or integrally formed as in the prior art, but the salt chamber and the softener are fixed between the rear sidewall of the inner tub and the rear sidewall of the housing by the screw, and since the specific structure and the fixing manner and location thereof are not important to the present invention in the present invention, they are not described herein.
Because the salt cavity and the softener occupy larger space of the rear side wall of the inner container, and meanwhile, the effective space of the rear side wall of the inner container is fully utilized, and the lower part of the diagonal line is approximately formed with the salt adding port, in the embodiment, the inner container air inlet is arranged at the lower right part, and then the air inlet duct 1 is fixed at the lower right part of the rear side wall of the inner container, and the space is limited, so that the air inlet duct 1 is required to be relatively small. The back of the top wall of the inner container is close to the back side wall, or the middle-upper part of the back side wall of the inner container, such as the upper part of a cooker rack, is provided with an inner container air outlet, the position of the inner container air outlet is obviously higher than the position of the inner container air inlet, and is preferably positioned above the highest position of all tableware, while the inner container air inlet is arranged above the washing water surface, preferably below a tableware basket, under the action of a fan, the circulating path of an air path of air exhaust on the lower air inlet is realized, and meanwhile, fresh air dried at high temperature can pass through the surface of the whole tableware, so that the washed tableware is effectively dried, the whole washing procedure is accelerated, and the drying efficiency is improved.
In summary, the air path circulating device for the dish washer provided by the invention has the following advantages compared with the prior art:
1. The air inlet position of the inner container communicated with the air inlet duct 1 is lower than the air outlet of the inner container communicated with the air outlet duct 2, so that an air path circulation path of bottom air inlet and top air outlet is formed, after the cleaning procedure is finished, the surface of tableware is air-dried by the high temperature of the washing chamber and the introduced fresh air, the air path is long, the drying and air-drying effects are good, the efficiency is high, a heating device is not required to be added in the air inlet duct 1, the cost is low, the volume is small, the power consumption is low, and the safety performance is good;
2. The guide plate 24 and the condensing device are arranged in the air outlet duct 2, so that high-temperature and high-humidity air in the washing chamber is effectively cooled and dehumidified, the damage of high-temperature air to the environment or operators is avoided, and the possibility of damage to the operators is further reduced by arranging the exhaust plate 23 on the back of the dish washer;
3. The foam is arranged, so that particles or other impurities in the external environment are effectively isolated from entering the air duct to pollute the washed tableware; the foam is arranged outside the grille, and can be replaced regularly under the condition that the air inlet duct 1 is not opened, so that the maintenance is convenient, and the sanitary condition is further ensured.
4. The grille is arranged, so that foam can be effectively protected from being inhaled by the fan;
5. The check sheet is arranged, and the check sheet moves unidirectionally through two-step limiting, so that high-temperature water drops, foam or other sundries splashed into the washing chamber are prevented from entering the air duct to cause damage to the fan, and meanwhile, external impurities are further isolated from entering the washing chamber, and damage to the fan caused by high-temperature and high-humidity water vapor can be avoided;
6. the structure strength of the non-return sheet is high, and the non-return sheet can be automatically reset under the action of self gravity without adding a reset structure, so that the whole structure of the air duct is simpler and the installation is faster;
7. The box-shaped structure of the check sheet strengthens the sealing effect on the air inlet duct 1, simultaneously temporarily holds the entered impurities, accelerates the impurity removal progress under the action of a fan and improves the cleaning effect on the inside of the air inlet duct 1;
8. The air duct is < shaped, on the one hand, the length of the air path is increased, on the other hand, the back stop sheet 6 is matched, so that splashed high-temperature water drops, foam or other sundries can only be temporarily contained in the second air inlet part 49, and the sundries slide into the washing chamber under the action of gravity due to the inclined arrangement of the second air inlet part 49.
As mentioned above, similar technical solutions can be derived in combination with the presented solution content. However, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.

Claims (10)

1. The utility model provides an air path circulating device for dish washer, includes air inlet wind channel and air-out wind channel, has seted up inner bag air intake and inner bag air outlet on the inner bag, inner bag air intake connection the air inlet wind channel, the inner bag air outlet is connected the air-out wind channel, its characterized in that: the air outlet duct is arranged at the top of the dish washer, one end of the air outlet duct is a first air outlet, the air outlet of the connecting inner container is communicated with the washing chamber, the other end of the air outlet duct is a second air outlet, and the air outlet duct is communicated with the outside through an exhaust plate on the side wall of the shell; the air inlet channel is arranged in a space between the side wall of the lower liner of the dish washer and the side wall of the shell, is < shaped, and comprises a first air inlet part, a bending part and a second air inlet part which are mutually connected, wherein the bending part is of a corner structure; the first air inlet part is communicated with the side wall of the shell, is horizontally arranged, is connected with the second air inlet part through the bending part, and is communicated with the side wall of the liner obliquely downwards; the air inlet duct comprises an air duct box, an air duct cover plate fixed on the air duct box and a fan arranged in the air inlet duct, one end of the air inlet duct is a first air inlet and is communicated with the external environment through an air hole on the side wall of the shell, the other end of the air inlet duct is a second air inlet, the air inlet duct is connected with an inner container air inlet arranged on the side wall of the inner container and is communicated with the washing chamber, and the inner container air inlet is positioned at the lower part of the side wall of the inner container and above the washing water level of the washing chamber; the air inlet of the inner container is arranged at the lower part of the rear side wall of the inner container, and the air outlet of the inner container is arranged at the top of the rear side wall of the inner container and/or at the rear side of the top wall of the inner container.
2. The air path circulation device for a dish washer as claimed in claim 1, wherein: the air inlet duct is internally provided with a check sheet, the section shape and the size of the check sheet are the same as those of the air inlet duct, the check sheet can rotate in the air inlet duct, the opening direction of the check sheet is consistent with the air supply direction of the fan, and the check sheet seals the whole air inlet duct in a normal state.
3. A wind path circulation device for a dish washer as claimed in claim 2, wherein: one end of the check sheet is provided with a rotating shaft, a shaft pin arranged in the air duct box is inserted into a shaft hole of the rotating shaft, so that the check sheet is fixed in the air duct box and can rotate around the shaft pin, one end of the check sheet is contacted with one side wall of the air duct box and can rotate on the side wall, the other end of the check sheet is lapped on the other side wall of the air duct box, and the other two end faces of the check sheet are respectively contacted with the bottom wall of the air duct box and the air duct cover plate, so that the whole air inlet duct is sealed in a normal state.
4. A wind path circulation device for a dish washer as claimed in claim 2, wherein: the back stop piece is of an open box-shaped structure and comprises a bottom plate, a back baffle and a left/right side baffle which are connected with each other, one end of the bottom plate, which is not connected with the back baffle, is bent upwards and extends out of the left/right side baffle for a certain distance, the bottom plate is the bottom of the box-shaped structure, a rotating shaft with a shaft hole is arranged at the joint of the left/right side plate and the bottom plate, a shaft pin in the air channel box is inserted into the shaft hole and fixes the back stop piece in the air channel box, the outer side of the rotating shaft is contacted with the side wall of the air channel box and can rotate in the air channel box, the left/right side baffle is respectively contacted with the bottom wall of the air channel box and the air channel cover plate, the open end of the box-shaped structure faces towards the second air inlet, and the bent part is lapped on the side wall of the air inlet box, and the whole air inlet channel is sealed in a normal state.
5. The air path circulation device for a dish washer as claimed in claim 4, wherein: the rotating shaft of the non-return piece is provided with a limiting part for limiting the reverse rotation of the non-return piece.
6. A wind path circulation device for a dish washer as claimed in any one of claims 2 to 5, wherein: the check sheet is disposed at the bent portion.
7. A wind path circulation device for a dish washer as claimed in any one of claims 1 to 5, wherein: the air inlet of the inner container is arranged at a position below the tableware frame above the washing water level of the washing chamber, and the air inlet duct is fixed on the rear side wall of the inner container.
8. A wind path circulation device for a dish washer as claimed in any one of claims 1 to 5, wherein: the exhaust plate is disposed at an upper portion of the rear sidewall of the housing.
9. A wind path circulation device for a dish washer as claimed in any one of claims 1 to 5, wherein: and a guide plate and/or a condensation cooling device are arranged in the air outlet air duct.
10. A dishwasher, characterized in that: an air path circulation device for a dishwasher according to any one of claims 1 to 9 is provided in the dishwasher.
CN201510520829.9A 2015-08-21 2015-08-21 Air path circulating device for dish washing machine and dish washing machine Active CN106466170B (en)

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CN208435583U (en) * 2017-08-31 2019-01-29 佛山市顺德区美的洗涤电器制造有限公司 Hot air apparatus and dish-washing machine
CN109691965A (en) * 2017-10-24 2019-04-30 青岛海尔洗衣机有限公司 Shoe washing machine
CN107970018A (en) * 2017-12-29 2018-05-01 珠海格力电器股份有限公司 Air channel structure and the dish-washing machine with the air channel structure
CN107981818B (en) * 2017-12-29 2024-03-01 珠海格力电器股份有限公司 Air inlet and exhaust system and door body of equipment and dish washer with door body
CN109805873B (en) * 2019-04-02 2024-02-02 杭州老板电器股份有限公司 Double-air-duct exhaust device and dish-washing machine
CN110215176B (en) * 2019-06-19 2021-03-23 佛山市百斯特电器科技有限公司 Method for controlling fan and dish-washing machine
CN110811464A (en) * 2019-11-28 2020-02-21 珠海格力电器股份有限公司 Dish washing machine and shoe washing machine integrated machine and control method thereof

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