Dish washing machine

Abstract

The utility model relates to a dish washing machine which comprises a box body, and a washing cavity is formed in the box body. The air inlet assembly comprises a fan and an air outlet pipe, the air outlet pipe is provided with an air inlet and an air outlet, an air inlet of the fan is communicated with the outside, an air outlet of the fan is communicated with the air inlet of the air outlet pipe, and the air outlet of the air outlet pipe is communicated with the washing cavity; the box body is further provided with a cavity located beside the washing cavity, the air inlet assembly is arranged in the cavity, the fan is located on the rear side of the air outlet pipe, and the air outlet pipe comprises a transverse part extending in the front-back direction, an upper extending part extending upwards from the front end of the transverse part and a lower extending part extending downwards from the front end of the transverse part. The fan is arranged at the rear end of the transverse part, and air outlets are formed in the upper extending part and the lower extending part. The cavity is defined by the side plates and the inner container, so that noise can continuously pass through the air outlet pipe and the cavity on a noise transmission path, and noise transmission energy is reduced through changes of different media.

Description

TECHNICAL FIELD

[0001] The utility model relates to a dish washer. BACKGROUND

[0002] The dish washer has the advantages of good cleaning effect, ability of disinfecting tableware, time and labor saving, etc., and therefore is used more and more widely. In order to improve the washing effect, at least one water is usually washed by hot water when the existing dish washer is washing, the hot water washing temperature is above 70 DEG C, and after washing is finished, air is generally blown into the box body to dry the dishes. The drying structure is like the Chinese utility model patent published in patent application No. CN202321476550.1 (publication No. CN220778307U) "drying structure for dish washer and dish washer", the drying structure includes a mounting seat, an air inlet hole and an air outlet hole which are connected with the inside of the mounting seat; a fan, the air inlet hole of the fan is in fluid communication with the air inlet hole of the mounting seat, the air outlet hole of the fan is in fluid communication with the air outlet hole of the mounting seat; an air outlet pipe, one end of the air outlet pipe is sleeved with the mounting seat, the end of the air outlet pipe is used as an air inlet port which is in communication with the air outlet hole of the mounting seat; a heating element, which is located on the airflow flow path between the air outlet hole of the fan and the air outlet port of the air outlet pipe; the heating element is arranged in the mounting seat and located between the air outlet hole of the fan and the air outlet hole of the mounting seat.

[0003] The air outlet pipe is formed by the butt joint of the first shell and the second shell, and the split type air duct may have a gap, the air volume in the air duct may leak out through the gap along the path, the smaller the gap, the greater the high frequency noise caused, in addition, the fan is a noise source, which may also cause large working noise. UTILITY MODEL CONTENTS

[0004] The utility model provides a dish washer with small noise during the working of the air inlet assembly in view of the current status of the prior art.

[0005] The utility model adopts the technical scheme that a dish washer comprises

[0006] A box body has a washing cavity inside;

[0007] An air inlet assembly comprises a fan and an air outlet pipe, the air outlet pipe has an air inlet and an air outlet, the air inlet hole of the fan is in communication with the outside, the air outlet hole of the fan is in communication with the air inlet of the air outlet pipe, and the air outlet of the air outlet pipe is in communication with the washing cavity;

[0008] The box body is characterized in that the box body further has a cavity beside the washing cavity, the air inlet assembly is arranged in the cavity, the fan is arranged at the rear side of the air outlet pipe, the air outlet pipe comprises a transverse part extending in the front-rear direction, an upper extension part extending upward from the front end of the transverse part, and a lower extension part extending downward from the front end of the transverse part, and the fan is arranged at the rear end of the transverse part, and the upper extension part and the lower extension part are each provided with an air outlet.

[0009] Preferably, the front end of the transverse part is branched downward to form at least two lower extension parts, and / or the front end of the transverse part is branched upward to form at least two upper extension parts. In this way, the noise shielding object is increased, the noise is reduced, and the air outlet part is also increased, thereby further improving the flow field uniformity in the inner container.

[0010] In order to further reduce the noise, the cavity is further provided with a sound absorption member located on the sound propagation path.

[0011] Preferably, the sound absorption member is in the form of a plate and is located at the front side of the fan. Because the air inlet assembly is arranged at a relatively rear position of the inner container in order to reduce the noise, there is space for arranging the sound absorption member in the front part of the inner container, and the sound absorption member is in the form of a plate, has a large area, and has a good sound absorption effect.

[0012] Preferably, the box body comprises an inner container having the washing cavity and an outer shell located outside the inner container, the outer shell and the inner container form the cavity, and the air outlet pipe abuts against the side plate of the outer shell. In this way, the air flow does not flow forward without shielding, but continuously experiences different media between the cavity and the air outlet pipe, thereby achieving a good noise reduction effect.

[0013] In order to reduce air leakage of the air outlet pipe, otherwise not only the air volume is lost, but also noise is generated, preferably, the air outlet pipe is welded by two half shells, so that the two half shells are firmly connected together and air leakage is reduced.

[0014] In order to improve the drying efficiency, the air outlet pipe is provided with a heating member, so that hot air flows into the inner container, thereby achieving a good drying effect on the tableware. In addition, the heating member itself has a certain mass and volume, which can shield the noise in the air outlet pipe to some extent, thereby reducing the noise.

[0015] Because the heating member needs to be powered to work, and if the electric wire connected with the external power supply, the air outlet pipe needs to be provided with a through hole through which the electric wire connected with the heating member passes, in order to prevent air leakage at the through hole, the air outlet pipe is provided with a glue injection port communicated with the through hole. After welding is completed, glue is poured from the glue injection port, and the glue fills the through hole, so that the inside of the air outlet pipe is a closed flow channel without gaps along the way, thereby avoiding the formation of high-frequency whistle noise in a local part.

[0016] Preferably, the side wall of the air outlet duct is provided with heat dissipation components located on both sides of the heating element. The heat dissipation components are wavy, which is beneficial for absorbing noise and dissipating some of the noise propagation energy.

[0017] Compared with the prior art, the advantages of this utility model are: the side plate and the inner liner of this utility model form a cavity, so that the noise propagation path will continuously pass through the air outlet and the cavity, and the noise propagation energy is reduced by the change of different media.

[0018] In addition, the air outlet duct includes a horizontal section, an upper extension section, and a lower extension section. The three sections work together to not only block the front of the fan but also the oblique front, further reducing the propagation energy of noise. At the same time, this structure of the air outlet duct of this application allows air to be discharged from both the upper and lower parts, resulting in a uniform flow field in the inner tank and a good drying effect on the tableware.

[0019] Meanwhile, the fan is located behind the air outlet duct. Since the fan is the main source of noise, this layout keeps the fan away from the user, increasing the noise propagation path and thus reducing noise. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure without the side panels;

[0022] Figure 3 for Figure 1 A sectional view;

[0023] Figure 4 for Figure 2 A schematic diagram of the air intake assembly in the middle;

[0024] Figure 5 for Figure 4 A sectional view. Detailed Implementation

[0025] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0026] In the description of this utility model, it should be understood that, unless otherwise stated, "multiple" means two or more, and the terms "upper," "lower," "left," "right," "top," "bottom," "front," "rear," etc., indicate the orientation or positional relationship based on the direction or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an adhesive connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model patent based on the specific circumstances.

[0028] like Figures 1 to 5 As shown, the dishwasher of this preferred embodiment includes a cabinet and an air intake assembly.

[0029] The housing includes an inner liner 1 with a washing chamber 11 and an outer shell 2 located outside the inner liner 1. The outer shell 2 and the inner liner 1 form a cavity 20, i.e., the cavity 20 is located beside the washing chamber 11, and the air inlet assembly is disposed in the cavity 20. In this embodiment, the front of the housing is open, and a door 7 that can be opened or closed is provided at the opening.

[0030] The air intake assembly includes a fan 3 and an air outlet 4. The air outlet 4 has an air inlet 41 and an air outlet 42. The air inlet of the fan 3 is connected to the outside. The air outlet of the fan 3 is connected to the air inlet 41 of the air outlet 4. The air outlet 42 of the air outlet 4 is connected to the washing chamber 11.

[0031] Fan 3 is located behind air outlet duct 4. Since fan 3 is the main source of noise, this layout keeps fan 3 away from the user, increases the noise propagation path, and reduces noise.

[0032] The air outlet pipe 4 comprises a transverse part 43 extending along the front-rear direction, an upper extension part 44 extending upward from the front end of the transverse part 43, and a lower extension part 45 extending downward from the front end of the transverse part 43, the fan 3 is arranged at the rear end of the transverse part 43, and the upper extension part 44 and the lower extension part 45 are both provided with air outlets 42. The cooperation of the transverse part 43, the upper extension part 44 and the lower extension part 45 not only shields the front of the fan 3, but also shields the oblique front, further reducing the propagation energy of the noise; meanwhile, the structure of the air outlet pipe 4 of the present application enables the upper and lower parts to blow air, and the flow field in the inner container 1 is uniform, and the drying effect on the tableware is good.

[0033] In addition, the front end of the transverse part 43 is branched downward to form at least two lower extension parts 45, of course, the front end of the transverse part 43 can also be branched upward to form at least two upper extension parts 44. In this way, the noise shielding object is increased, the noise is reduced, and the air outlet part is also increased, further improving the uniformity of the flow field in the inner container 1.

[0034] Because the air flow is upward, the flow field in the lower part of the inner container 1 is prone to be uneven, therefore, preferably, the front end of the transverse part 43 is branched downward to form at least two lower extension parts 45. In the embodiment, there is one upper extension part 44 and two lower extension parts 45.

[0035] The fan 3 can adopt the existing structure, and a fan capable of rotating around the center line of the corresponding air outlet 42 can be arranged in at least one air outlet 42, the fan can rotate under the driving of the air flow or the motor, so as to cover a large area of the air flow entering the inner container 1.

[0036] The cavity 20 is also provided with a sound absorbing member 5 located on the sound propagation path. In the embodiment, the sound absorbing member 5 is in the form of a plate and is located on the front side of the upper extension part 44. Because the air inlet assembly is arranged at a relatively rear position of the inner container 1 in order to reduce the noise, there is space in the front part of the inner container 1 to arrange the sound absorbing member 5, and the sound absorbing member 5 is in the form of a plate, has a large area and good sound absorbing effect. The sound absorbing member 5 can be made of sound absorbing cotton or other materials.

[0037] In addition, the air outlet pipe 4 abuts against the side plate 21 of the shell 2, so that the air flow does not flow forward without shielding, but continuously experiences different media between the cavity 20 and the air outlet pipe 4, and the noise reduction effect is good.

[0038] In the embodiment, the air outlet pipe 4 is welded by two half shells 46, so that the two half shells 46 are firmly connected together and air leakage is reduced. The air outlet pipe 4 can be made of plastic material.

[0039] Moreover, the heating element 6 is arranged in the air outlet pipe 4. The heating element 6 can be a PTC heating element. Thus, the hot air enters the inner container 1, and the drying effect on the tableware is good. In addition, the heating element 6 is in the form of a plate, and has a certain mass and volume. The heating element 6 can shield the noise in the air outlet pipe 4 to some extent, so as to reduce the noise.

[0040] Because the heating element 6 needs to be powered to work, and if the electric wire is connected with the external power supply, the air outlet pipe 4 needs to be provided with a through hole 47 for the electric wire connected with the heating element 6 to pass through. In order to prevent air leakage at the through hole 47, the air outlet pipe 4 is provided with a glue injection port communicated with the through hole 47. After welding is completed, glue is injected from the glue injection port. The glue fills the through hole 47, so that the air outlet pipe 4 is a closed flow channel along the way without gaps. Thus, the high-frequency whistle noise is not formed locally.

[0041] The side wall of the air outlet pipe 4 is provided with heat dissipation elements 61 arranged on both sides of the heating element 6. The heat dissipation elements 61 prevent the air outlet pipe 4 from being deformed by heat. Preferably, the heat dissipation elements 61 are in the form of waves. This structure is conducive to absorbing noise, and the noise propagation energy is consumed in part.

[0042] Through tests, the noise of the dish washing machine of the embodiment is reduced to about 46 dB, and the noise reduction effect is good.

Claims

1. A dishwasher, comprising The housing has a washing chamber (11) inside; The air intake assembly includes a fan (3) and an air outlet pipe (4). The air outlet pipe (4) has an air inlet (41) and an air outlet (42). The air inlet of the fan (3) is connected to the outside. The air outlet of the fan (3) is connected to the air inlet (41) of the air outlet pipe (4). The air outlet (42) of the air outlet pipe (4) is connected to the washing chamber (11). Its features are, The housing also has a cavity (20) located next to the washing chamber (11). The air inlet assembly is located in the cavity (20). The fan (3) is located behind the air outlet pipe (4). The air outlet pipe (4) includes a transverse portion (43) extending in the front-rear direction, an upper extension portion (44) extending upward from the front end of the transverse portion (43), and a lower extension portion (45) extending downward from the front end of the transverse portion (43). The fan (3) is located at the rear end of the transverse portion (43). Both the upper extension portion (44) and the lower extension portion (45) are provided with air outlets (42).

2. The dishwasher according to claim 1, characterized in that: The front end of the lateral portion (43) branches downward to form at least two lower extension portions (45), and / or the front end of the lateral portion (43) branches upward to form at least two upper extension portions (44).

3. The dishwasher according to claim 1, characterized in that: The cavity (20) is also provided with a sound-absorbing element (5) located in the sound propagation path.

4. The dishwasher according to claim 3, characterized in that: The sound-absorbing component (5) is plate-shaped and located in front of the fan (3).

5. The dishwasher according to claim 1, characterized in that: The housing includes an inner liner (1) having the washing chamber (11) and an outer shell (2) located outside the inner liner (1). The outer shell (2) and the inner liner (1) form the cavity (20). The air outlet pipe (4) abuts against the side plate (21) of the outer shell (2).

6. The dishwasher according to claim 1, characterized in that: The air outlet pipe (4) is welded together from two half-shells (46).

7. The dishwasher according to any one of claims 1 to 6, characterized in that: The air outlet pipe (4) is equipped with a heating element (6).

8. The dishwasher according to claim 7, characterized in that: The air outlet pipe (4) is provided with a through hole (47) for the wire connected to the heating element (6) to pass through, and the air outlet pipe (4) is provided with an injection port connected to the through hole (47).

9. The dishwasher according to claim 7, characterized in that: The side wall of the air outlet pipe (4) is provided with heat dissipation components (61) located on both sides of the heating component (6), and the heat dissipation components (61) are wavy.

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