CN219878098U - Drying device of dish washer and dish washer - Google Patents

Abstract

The utility model discloses a drying device of a dish-washing machine and the dish-washing machine, the drying device comprises: the inside of the protective cover is provided with a fan installation cavity and a heating module installation cavity which are axially communicated; the ducted fan is positioned in the fan installation cavity; the fixing piece is arranged at one side of the heating module installation cavity, which is close to the fan installation cavity, and is provided with a ventilation cavity which is penetrated along the axial direction; the heating module is arranged in the heating module installation cavity through the fixing piece, and the duct fan sends wind into the heating module through the ventilation cavity of the fixing piece. Through the scheme, the beneficial effects of the utility model are as follows: compared with the centrifugal fan in the prior art, the dish washer with the drying device has larger air output and faster air output speed, and can use different powers under different working conditions by matching with the heater, thereby improving the utilization rate of hot air and the drying efficiency of the dish washer.

Description

Drying device of dish washer and dish washer

Technical Field

The utility model belongs to the technical field of dish washers, and particularly relates to a drying device of a dish washer and the dish washer.

Background

In order to accelerate the drying rate of the dish-washing machine, a drying device is generally arranged in the dish-washing machine, so that the drying device blows hot air into the liner of the dish-washing machine to dry the sprayed and washed tableware.

In the prior art, a drying device of a centrifugal fan is generally adopted in a dish washer, such as a dish washer and a drying device thereof disclosed in the utility model with the application number of CN202022752336.7, and a hot air device for blowing hot air into a cleaning inner container of the dish washer is disclosed, because the hot air device adopts a heater formed by assembling alloy heating wires, compared with the hot air device of a PTC heater in the prior art, the wind resistance of the alloy heating wires to air flow in the process of realizing heat exchange with the air flow is relatively small, so that the air flow flows more smoothly in an air inlet cavity, a heat exchange cavity and an air outlet cavity and enters the cleaning inner container of the dish washer, and the air outlet efficiency of the hot air device is improved; however, the centrifugal fan adopted in the drying device of the utility model cannot obviously improve the air output of the drying device, and further cannot fundamentally improve the drying efficiency of the drying device.

In addition, the fan in the prior art is directly connected with the heating channel, and vibration generated during the operation of the fan can influence the sealing performance of the drying device, so that the drying efficiency of the dish washer is reduced.

The ducted fan has the characteristics of high rotating speed and high air quantity, and is widely applied to unmanned aerial vehicles, aircrafts and blowers. Because the ducted fan has high noise, the ducted fan is difficult to apply to other household appliances. Even if the noise of the ducted fan is not considered, the ducted fan is directly assembled to the existing dish washer, the power of the heating module is difficult to heat such high-speed wind, and the power of the heating module is increased, so that the high temperature can damage the air duct and even the dish washer.

The present utility model has been made in view of this.

Disclosure of Invention

The utility model aims to provide a drying device of a dish-washing machine, which comprises a duct fan and a heating module, reduces noise of the duct fan and provides a high-power heating module for the heating module without damaging an air duct and the dish-washing machine, and safely and efficiently dries the dish-washing machine.

The utility model further aims to provide the dish washer, the drying device is communicated with the inner container to convey hot air into the inner container, the air supply efficiency of the drying device is improved through the characteristic that the air supply quantity of the ducted fan is large, the air output by the ducted fan directly enters the heating module, and the temperature of the hot air is guaranteed to be obviously improved through full heating.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a drying apparatus of a dish washer, comprising: the inside of the protective cover is provided with a fan installation cavity and a heating module installation cavity which are axially communicated; the ducted fan is positioned in the fan installation cavity; the fixing piece is arranged at one side of the heating module installation cavity, which is close to the fan installation cavity, and is provided with a ventilation cavity which is penetrated along the axial direction; the heating module is arranged in the heating module installation cavity through the fixing piece, and the duct fan sends wind into the heating module through the ventilation cavity of the fixing piece.

Further, the heating module at least comprises a shell, the fixing piece comprises a first connecting portion and a second connecting portion which are integrally arranged, the fixing piece is fixed in the heating module installation cavity through the first connecting portion and fixedly connected with the shell through the second connecting portion, and a gap is reserved between the outer peripheral wall of the shell and the inner wall of the protective cover.

Further, the size and shape of the radial section of the first connecting part are matched with the size and shape of the area surrounded by the inner surface in the radial section of the heating module installation cavity;

the first connecting part is embedded at the end part of the heating module installation cavity, which is connected with the fan installation cavity.

Further, one end of the heating module installation cavity, which is close to the fan installation cavity, is provided with a stop wall formed by radial shrinkage, and the shrinkage end of the stop wall forms an air supply outlet; the heating module installation cavity is communicated with the fan installation cavity through the air supply outlet, the section of the first connecting portion is matched with the section of the heating module installation cavity, and when the fixing piece is installed in place in the heating module installation cavity, the first connecting portion is in butt joint with the stop wall.

Further, the second connecting portion protrudes or is recessed in the first connecting portion, the outer diameter of the second connecting portion is smaller than or equal to the inner diameter of the shell, one end of the shell is sleeved on the second connecting portion, and the heating module is fixed in the heating module mounting cavity.

Further, a shock pad is arranged between the duct fan and the inner wall of the fan installation cavity, the inner peripheral wall of the shock pad is abutted with the peripheral wall of the duct fan, and the outer peripheral wall is abutted with the inner peripheral wall of the fan installation cavity.

Further, the shock pad is provided with protruding structures which are abutted with the inner peripheral wall of the fan installation cavity, the protruding structures are elastic protruding blocks which are arranged at equal intervals along the circumferential direction of the shock pad, and the end parts of the protruding structures are abutted with the inner peripheral wall of the fan installation cavity;

preferably, the inner peripheral wall of the fan installation cavity is provided with an installation rib which is arranged in a protruding mode, the installation rib is opposite to the protruding structure in position, and the end portion of the protruding structure is abutted to the installation rib.

Further, the shock pad is provided with a saw-tooth structure which is abutted with the bottom wall of the fan installation cavity;

preferably, the zigzag structure is positioned at the end part of the shock pad, which is close to the air inlet side of the ducted fan, and is obtained by extending outwards from the end part along the axial direction and is abutted with the bottom wall of the fan installation cavity;

further preferably, the ends of the zigzag structure are provided in a wavy shape.

Further, the protection cover is divided into two parts of a protection cover base and a cover body which are symmetrical in structure along the center line of the fan installation cavity and the heating module installation cavity, and the cover body is connected with the protection cover base through a buckle.

A dishwasher comprising a drying device as described above.

The utility model has at least the following beneficial effects:

compared with the centrifugal fan in the prior art, the dish washer with the drying device has larger air output and faster air output speed, and can use different powers under different working conditions by matching with the heater, thereby improving the utilization rate of hot air and the drying efficiency of the dish washer.

The two are respectively fixed in the protective cover, and the relative fixation of the two is realized through the fixation of the protective cover, so that the sealing effect of the drying device is improved; the bypass fan is not directly connected with the heating module, the vibration of the fan can not lead to synchronous vibration of the heating module, and the working noise of the drying device is reduced.

In addition, the fan and the heating module are fixed through the fixing piece and the shell, so that the damping performance of the drying device is better, the working noise is low, the service life is long, and the use experience of a user is further improved.

Drawings

Fig. 1 is a schematic view showing the structure of a drying device removing cover and a corresponding side case of a heating module of a dishwasher according to the present utility model.

Fig. 2 is a schematic view of the structure of the inside of a drying device of a dishwasher according to the present utility model.

Fig. 3 is a schematic structural view of a protective cover base of a drying device of a dishwasher according to the present utility model.

Fig. 4 is a schematic structural view of a fixing member in a drying device of a dish washer according to the present utility model.

Fig. 5 is a schematic view showing an external appearance structure of a drying device of a dish washer according to the present utility model.

Fig. 6 is a schematic view illustrating another direction of a fixing member in a drying apparatus of a dishwasher according to the present utility model.

Fig. 7 is a schematic view showing another direction of a base of a protective cover in a drying apparatus of a dishwasher according to the present utility model.

Fig. 8 is a schematic structural view of a heating module in a drying apparatus of a dishwasher according to the present utility model.

Fig. 9 is a schematic view illustrating a structure of a drying device of a dish washer according to still another aspect of the present utility model.

Fig. 10 is an exploded view of a ducted fan in a drying apparatus of a dishwasher according to the present utility model.

Fig. 11 is a schematic structural view of a ducted fan in a drying apparatus of a dishwasher according to the present utility model after the ducted fan is assembled.

In the figure: 11. a ducted fan; 111. a rotor magnet; 112. a bearing; 113. a stator; 114. a fan housing; 115. an impeller; 17. a rotating shaft; 1131. a wire frame; 1132. three groups of enamelled wires; 12. a shock pad; 121. a bump structure; 122. a saw tooth structure; 135. a first limit part; 1331. a wind passing groove; 2. a fixing member; 21. a first connection portion; 211. a first portion; 212. a second portion; 22. a second connecting portion; 221. the clamping bulge; 3. a heating module; 31. a support; 32. a housing; 33. a heating wire; 326. a bayonet; 9. a protective cover; 131. a filter hole; 76. a protective cover base; 77. a cover body; 762. a buckle; 132. a baffle; 133. a first mounting bar; 134. a second mounting bar; 136. a second limit part; 137. a stop wall; 1331. a wind passing groove; 74. convex ribs; 3111. a first projection; 763. wire passing grooves; 24. a wire outlet structure; 25. an anti-misplug groove; 7611. and a limit rib.

Detailed Description

Exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings, and it will be understood by those skilled in the art that the following embodiments are only for explaining the technical principles of the present utility model and are not intended to limit the scope of the present utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly or indirectly through an intermediate medium, and the specific meaning of the above terms in the present utility model will be understood by those skilled in the art according to the specific circumstances.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Most of dish washer drying devices in the prior art adopt a combination of a centrifugal fan and a PTC heater, a bypass fan is directly connected with a heating module, vibration generated in the working process of the bypass fan enables noise of the drying device to be large, heating and air outlet efficiency of the drying device can be influenced, and service life of the drying device is even influenced.

As shown in fig. 1 to 11, the drying device in the utility model adopts the combination of the ducted fan 11 and the heating wire 33, the ducted fan 11 is fixed in the fan installation cavity of the protective cover 9, the heating module 3 is fixed on the fixing piece 2, the heating module installation cavity of the protective cover 9 is fixed through the fixing piece 2, the relative fixing and the close distance interval arrangement of the positions between the ducted fan 11 and the heating module 3 are ensured through the protective cover 9, and the stability of the whole structure is improved; meanwhile, the ducted fan 11 is not directly connected with the heating module 3, and the ducted fan 11 and the heating module 3 are separated by the fixing piece 2, so that heat of the heating module 3 is not directly conducted into the ducted fan 11, and the service life of the ducted fan 11 is prolonged; the drying device is used for supplying air to the inner container in the dish washer, so that the working noise of the drying device is reduced and the use experience of a user is improved while the higher air supply efficiency is ensured.

The present utility model will be described in detail with reference to specific examples.

As an embodiment of the present utility model, as shown in fig. 1, 2 and 4, the drying device of the dishwasher includes a protection cover 9, a ducted fan 11, a fixing member 2 and a heating module 3. The fan installation cavity and the heating module installation cavity that have axial intercommunication in the safety cover 9, the fan installation cavity has the air intake, the heating module installation cavity has the air outlet, drying device passes through the air outlet and the wind channel of heating module installation cavity and the inside intercommunication of the inner bag of dish washer, duct fan 11 installs in the fan installation cavity of safety cover 9, the mounting 2 and the heating module 3 that have the setting of arranging along axial direction in the heating module installation cavity, mounting 2 is located between heating module 3 and duct fan 11, heating module 3 is connected with mounting 2, be fixed in the heating module installation cavity through mounting 2, mounting 2 has the ventilation chamber that runs through the setting along the axial, duct fan 11 is inhaled air and is supplied with air along axial direction to the heating module installation intracavity from the air intake, the wind from duct fan 11 is heated by heating module 3 and is formed hot-blast after passing the ventilation chamber, hot-blast enters into the inner bag of dish washer from the air outlet end of heating module installation cavity.

In the above scheme, the duct fan 11 is not directly contacted with the fixing piece 2 and the heating module 3, but the duct fan 11 and the fixing piece 2 are respectively fixed in the fan installation cavity and the heating module installation cavity to realize the relative fixation of the two positions, so that the relative fixation of the positions between the duct fan 11 and the heating module 3 is realized, the influence of vibration of the duct fan 11 on the heating module 3 is obviously reduced, the heat conduction of the heating module 3 to the duct fan 11 is effectively avoided, and the service life of the duct fan 11 is prolonged.

Further, as shown in fig. 10 and 11, the ducted fan 11 in the present embodiment includes: the air conditioner comprises a rotating shaft 117, wherein an impeller 115, a bearing 112 and a rotor magnet 111 are sequentially arranged on the rotating shaft 117 along the air supply direction;

the ratio of the axial length of the rotation shaft 117 to the axial length of the bearing 112 is 2 _～ 3。

In this embodiment, the fan housing 114 has an inner ring and an outer ring, between which a duct of the ducted fan 11 is formed, in which a bearing 112, a part of a stator 113 and a part of a rotor magnet 111 are disposed, the impeller 115 and the rotor magnet 111 are fixed on the rotating shaft 117, and the bearing 112 is engaged with the inner ring of the fan housing 114 to support the rotating shaft 117, so that the ratio of the axial length of the rotating shaft 117 to the axial length of the bearing 112 directly determines the rotation stability of the impeller 115. If the axial length of the bearing 112 is too short with respect to the rotation shaft 117, there may occur a problem that the rotation shaft 117 supported thereby is unstable and easily damaged in rotation.

In this embodiment, by designing the ratio of the axial length of the rotor magnet 111 to the axial length of the rotating shaft 117, it is ensured that the torque generated by the combined action of the rotor magnet 111 and the stator 113 can make the rotating speed of the rotating shaft 117 reach at least 110000rpm without twisting and wearing the rotating shaft 117, and the ducted fan 11 only needs to install one bearing 112, so that the structure is simple and the installation is convenient.

In this embodiment, the ratio of the axial length of the rotor magnet 111 to the axial length of the rotation shaft 117 may be 0.3, the axial length of the rotor magnet 111 may be 12 mm, and the axial length of the rotation shaft 117 may be 40 mm.

In this embodiment, the stator 113 includes a wire frame 1131 and three groups of enameled wires 1132, wherein the three groups of enameled wires 1132 are wound on the wire frame 1131, and different currents are connected through the three groups of enameled wires 1132 to generate a rotating magnetic field so as to rotate the rotor magnet 111 positioned in the stator 113.

Further, in order to secure the heating efficiency of the heating module 3, as shown in fig. 8, the heating module 3 includes a heating wire 33, a support 31, and a housing 32; the support 31 is provided extending axially along the housing 32, has a first projection 3111 provided in a radial direction of the housing 32, and is connected to the housing 32 by the first projection 3111; the heating wire 33 is spirally wound on the support 31 in the axial direction.

Further, for guaranteeing the stability of the heating module 3, the fixing piece 2 includes a first connecting portion 21 and a second connecting portion 22 which are integrally arranged, the fixing piece 2 is fixedly connected with the heating module installation cavity through the first connecting portion 21, and is fixedly connected with the heating module 3 through the second connecting portion 22, so that the heating module 3 is fixed on the fixing piece 2, and is stably fixed in the heating module installation cavity through the fixing piece 2.

Further, the outer diameter of the first connecting portion 21 is equal to the inner diameter of the heating module mounting chamber and is embedded in the end portion of the heating module mounting chamber on the side where the heating module mounting chamber is connected to the fan mounting chamber.

Further, the second connecting portion 22 protrudes or is recessed from the first connecting portion 21, the outer diameter of the second connecting portion 22 is smaller than or equal to the inner diameter of the housing 32, and one end of the housing 32 is sleeved on the second connecting portion 22, so that the heating module 3 is fixed in the heating module mounting cavity.

As a specific embodiment of the present utility model, as shown in fig. 4 and 6, the side of the first connection portion 21 adjacent to the heating module 3 protrudes outward in the axial direction to form a second connection portion 22. The second connection portion 22 is coaxially provided with the first connection portion 21, and the ventilation chamber is provided to penetrate from the centers of the first connection portion 21 and the second connection portion 22. The size and shape of the second connecting portion 22 are matched with the size of the shell 32, the second connecting portion 22 is at least partially inserted into the shell 32, when the shell 32 and the second connecting portion 22 are connected in place, the outer peripheral wall of the second connecting portion 22 is attached to the inner peripheral wall of the shell 32, connection between the fixing piece 2 and the shell 32 is achieved, and as the second connecting portion 22 stretches into the shell 32, all wind from the ducted fan 11 flows to the heating module 3 without leakage, and air supply efficiency is improved.

Preferably, in the present embodiment, the cross section of the second connecting portion 22 is rectangular, the cross section of the housing 32 is a square ring with a size matching the cross section of the second connecting portion 22, and the shape and size of the inside of the square ring are the same as the cross section of the second connecting portion 22.

In order to further improve the connection stability between the second connection portion 22 and the housing 32, the peripheral wall of the second connection portion 22 is provided with a protruding clamping protrusion 221, and correspondingly, the inner wall of the housing 32 is provided with a bayonet 326 matching the shape of the clamping protrusion 221, when the second connection portion 22 is matched with the housing 32 in place, the clamping protrusion 221 is just clamped into the bayonet 326, and the clamping protrusion 221 and the bayonet 326 are matched to avoid separation along the axial direction.

In this embodiment, the cross-sectional shape of the clamping protrusion 221 is rectangular, and the clamping protrusion 221 with a rectangular cross-section cooperates with the bayonet 326 to connect the second connecting portion 22 with the housing 32, so as to avoid relative rotation between the housing 32 and the second connecting portion 22, thereby further improving connection stability.

Further, a first space is formed between the clamping protrusion 221 and the first connecting portion 21, a second space is formed between the bayonet 326 and the end portion of the housing 32, which is close to the fixing member 2, and the first space and the second space are the same in size, i.e. when the second connecting portion 22 is matched with the housing 32 in place, one end of the housing 32, which is close to the fixing member 2, abuts against the first connecting portion 21, so that the connection stability is further improved; preferably, the clamping protrusion 221 is disposed closely to the extension end of the second connection portion 22 and is flush with the extension end of the second connection portion 22.

Further, one end of the heating module installation cavity, which is close to the fan installation cavity, is provided with a stop wall 137 formed by radial shrinkage, the shrinkage end of the stop wall 137 forms an air supply outlet, the heating module installation cavity is communicated with the fan installation cavity through the air supply outlet, the section of the first connecting part 21 is matched with the section in the heating module installation cavity, and when the fixing piece 2 is installed in place in the heating module installation cavity, the first connecting part 21 is abutted with the stop wall 137, so that the limit of the installation position of the fixing piece 2 is realized; as a preferred embodiment of the present utility model, in order to better achieve the fixation of the fixing member 2 in the heating module mounting cavity, the outer diameter of the first connecting portion 21 is preferably slightly larger than the inner diameter of the heating module mounting cavity, and the two are in interference fit; in order to further improve the installation stability of the fixing element 2, the inner peripheral wall of the installation cavity of the heating module is provided with inwards protruding ribs 74, the ribs 74 are parallel to the stop wall 137 and are spaced from the stop wall 137, the first connecting part 21 is fixed between the stop wall 137 and the ribs 74, two sides of the first connecting part are respectively abutted with the stop wall 137 and the ribs 74, and the limiting of the fixing element 2 in the installation cavity of the heating module is realized through the ribs 74.

Preferably, the stop wall 137 is in smooth transition connection with the peripheral wall of the heating module mounting cavity through an arc surface, and the side surface of the first connecting part 21, which abuts against the stop wall 137, and the outer side surface, which abuts against the peripheral wall of the heating module mounting cavity, are in smooth transition connection through an arc surface; and further, the contact area between the first connecting part 21 and the protective cover 9 is increased, and the connection stability of the fixing piece 2 and the heating module installation cavity is further improved.

Preferably, at least two ribs 74 are provided along the circumferential direction of the heating module mounting cavity, and the distances between the ribs 74 and the stop wall 137 are equal; more preferably, the plurality of ribs 74 are arranged in pairs, the ribs 74 arranged in pairs being arranged centrally with respect to the axis of the heating module mounting chamber.

Alternatively, the ribs 74 may be provided as annular ribs circumferentially disposed about the heating module mounting cavity, as desired for actual use.

Further, a gap is formed between the outer peripheral wall of the shell 32 and the inner wall of the heating module installation cavity, and the protective cover 9 is prevented from being deformed or damaged due to the existence of the gap due to the fact that the temperature of the shell 32 is high, so that the service life is prolonged.

Further, because the temperature of the heating wire 33 is higher, simply increasing the distance between the housing 32 and the inner wall of the heating module installation cavity does not sufficiently prevent heat from being emitted and conducted to the wall of the air outlet cavity, there is still a hidden danger that the heating module installation cavity is thermally deformed or damaged, and therefore, the housing 32 is made of a heat insulating material; the inner wall of the housing 32 is also coated with a heat-insulating coating to further enhance the heat-insulating effect.

In order to alleviate vibration and noise of the ducted fan 11 in the use process, as shown in fig. 1, 2 and 10, a shock pad 12 is arranged between the ducted fan 11 and the inner wall of the fan installation cavity, the inner peripheral wall of the shock pad 12 is abutted with the peripheral wall of the ducted fan 11, and the outer peripheral wall is abutted with the inner peripheral wall of the fan installation cavity.

Further, the shock pad 12 is made of a flexible material.

Further, the shock pad 12 is provided with a protruding structure 121 abutted against the inner peripheral wall of the fan installation cavity, the protruding structure 121 is elastic protruding blocks which are arranged at equal intervals along the circumferential direction of the shock pad 12, and the end parts of the protruding structures 121 are abutted against the inner peripheral wall of the fan installation cavity to fully protect the circumferential direction of the ducted fan 11.

Further, the inner peripheral wall of the fan installation cavity is provided with an installation rib protruding inwards, the installation rib is opposite to the protruding structure 121, the end part of the protruding structure 121 is abutted to the installation rib, the protruding structure 121 is provided with deformability, the small deformation of the ducted fan 11 in the circumferential direction still can possibly cause the collision with the inner wall of the fan installation cavity, and the collision between the ducted fan 11 and the inner wall of the fan installation cavity is avoided through the installation rib.

Further, a plurality of protruding structures 121 are arranged at intervals in the axial direction of the shock pad 12, and a plurality of mounting ribs which are the same as the protruding structures 121 in number and correspond to each other in position are arranged on the inner peripheral wall of the fan mounting cavity, so that the shock absorption of the ducted fan 11 in the axial direction is further enhanced, and the running noise is reduced.

Further, all be equipped with the air intake on the perisporium of fan installation cavity and the diapire, through set up the air intake on perisporium and the diapire of fan installation cavity, increased the total area of air intake, guaranteed that duct fan 11 has sufficient intake.

Further, the suction force of the air inlet of the ducted fan 11 is large in the working state, in order to prevent small stones, small sundries and the like from being sucked into the drying device, the air inlet of the fan installation cavity is provided with filter holes 131 uniformly distributed on the bottom wall and the peripheral wall of the fan installation cavity, and the safety of the ducted fan 11 in operation is improved.

Further, the bottom wall of the fan installation cavity is provided with a baffle 132, and as an embodiment of the utility model, the baffle 132 is integrally arranged with the peripheral wall of the fan installation cavity; or as another embodiment of the present utility model, the baffle 132 may be removably disposed.

Further, the mounting ribs include a first mounting rib 133 and a second mounting rib 134, and as an embodiment of the present utility model, only one first mounting rib 133 is provided, and the filter holes 131 on the peripheral wall of the fan mounting chamber are provided between the first mounting ribs 133 of the baffle 132. Since the peripheral wall of the fan installation cavity is provided with the filtering holes 131, wind can enter the ducted fan 11 from the filtering holes 131 on the baffle 132 and can enter the ducted fan 11 from the filtering holes 131 arranged on the fan installation cavity through the gaps between the zigzag structures 122 and the baffle 132. And because the mounting ribs support the ducted fan 11, the fan mounting cavities are not arranged next to each other, but have a certain interval. Therefore, in this scheme, owing to be provided with filtration pore 131 on the perisporium of fan installation chamber, and set up the installation muscle at the internal surface of fan installation chamber to make the wind of duct fan 11 whole body all can be absorbed by duct fan 11, promoted the air inlet efficiency of duct fan 11 greatly.

In a preferred embodiment of the present embodiment, the first mounting rib 133 is disposed at a rear position in the ducted fan 11, so that the mounting holes are provided more and the air intake is greater.

In one embodiment of the present utility model, only the second mounting rib 134 is provided, and an air passage is provided between the second mounting rib 134 and the outer periphery of the damper pad 12. In this embodiment, the air port extends axially through the fan mounting cavity through the second mounting rib 134. The filter holes 131 may be disposed at any position on the peripheral wall of the fan installation cavity, and when the filter holes 131 on the peripheral wall of the fan installation cavity are disposed at the positions from the second installation rib 134 to the fan outlet, wind enters the ducted fan 11 through the filter holes 131 into the interval between the ducted fan 11 and the fan installation cavity, and then passes through the air outlet on the second installation rib 134 to enter the ducted fan 11.

In another aspect of the present embodiment, the inner peripheral surface of the second mounting rib 134 is provided with an inwardly recessed air passage 1331, and the air passage 1331 cooperates with the outer peripheral surface of the shock pad 12 to form an air passage. That is, when the fan installation cavity is sleeved on the periphery of the ducted fan 11, the second installation rib 134 on the fan installation cavity is abutted against the shock pad 12, so that the shock pad 12 forms the air gap with the opening blocking column of the air gap 1331 on the second installation rib 134. In this embodiment, a plurality of air vents are disposed on the second mounting ribs 134 at intervals.

As an embodiment of the present utility model, there are provided a first mounting bead 133 and a second mounting bead 134, the second mounting bead 134 being provided at a position upstream of the first mounting bead 133 in the air blowing direction; further, the filter holes 131 on the peripheral wall of the fan mounting chamber are provided between the baffle 132 and the first mounting rib 133, and the protrusions of the first mounting rib 133 and the second mounting rib 134 are the same in height. In the scheme of the embodiment, due to the two mounting ribs, the ducted fan 11 is fixed more firmly.

Further, the cushion 12 further includes an air inlet end cushion that is abutted against the bottom wall of the fan mounting cavity, and as an embodiment of the present utility model, the air inlet end cushion is in a zigzag structure 122.

Specifically, the zigzag structure 122 is located at the end of the shock pad 12 near the air inlet side of the ducted fan 11, and extends outwards from the end along the axial direction, and is abutted against the bottom wall of the fan installation cavity, so that the shock of the ducted fan 11 in the axial direction can be absorbed, and the running noise is further reduced; in order to improve the damping effect of the sawtooth-shaped structure 122, the end part of the sawtooth-shaped structure 122 is arranged in a wave shape, and the wave-shaped end part has better deformation capability and can more fully absorb the vibration generated by the ducted fan 11; the zigzag structure 122 protrudes from the air inlet side of the ducted fan 11, that is, when the zigzag structure 122 is abutted to the bottom wall of the fan installation cavity, a gap is formed between the air inlet side of the ducted fan 11 and the bottom wall of the fan installation cavity, so that the air inlet capacity of the ducted fan 11 is improved.

Further, the shock pad 12 further comprises an air outlet end shock pad, and the shock absorbing effect is further improved by abutting the air outlet end shock pad with the peripheral wall of the channel formed by the second limiting portion 136 and absorbing shock on the air outlet side of the ducted fan.

As an embodiment of the present utility model, the damper 12 is integrally provided, but the thickness of the damper at the air inlet end and the thickness of the damper at the air outlet end are greater than those of the damper 12 at the intermediate position.

As another embodiment of the utility model, the air inlet end shock pad, the air outlet end shock pad and the middle section between the two shock pads are detachably connected; the raised structures 121 are located on the peripheral wall of the intermediate section.

Further, the thicknesses of the air outlet end shock pad and the air inlet end shock pad are larger than the thickness of the middle section; as an embodiment of the present utility model, the air outlet end shock pad and the air inlet end shock pad are flush with the end of the protrusion structure 121.

Further, in order to ensure the fixing effect of the protection cover 9 on the ducted fan 11 and the fixing piece 2, the protection cover 9 is preferably made of hard materials, the shape of the fan installation cavity is a cylindrical cavity matched with the shape of the ducted fan 11, the fan installation cavity and the heating module installation cavity are connected through a second limiting part 136, the second limiting part 136 is integrally hollow and cylindrical and is provided with a channel penetrating through the second limiting part 136, the air outlet end of the fan installation cavity is connected with the air inlet end of the heating module installation cavity through the channel, one end of the second limiting part 136 connected with the heating module installation cavity is connected to a stop wall 137, an air supply outlet formed on the stop wall 137 is accommodated in the interior, the diameter of the fan installation cavity is larger than that of the channel on the second limiting part 136, one end of the second limiting part 136 connected with the fan installation cavity is provided with an opening which is gradually opened, and the air outlet end of the fan installation cavity is connected with the opening; preferably, the second limiting portion 136 is in smooth transition connection with the fan mounting cavity through the opening.

Further, the fan installation cavity, the second limiting part 136 and the heating module installation cavity are coaxially arranged, so that the axis of the ducted fan 11 is mutually overlapped with the axis of the fixing piece 2 and the axis of the heating module 3; the diameter of the air supply outlet on the stop wall 137 is slightly smaller than the diameter of the channel in the second limiting part 136, the first limiting part 135 is formed in a protruding mode, and a stepped structure is formed at the end portion of the first limiting part 135, the channel in the second limiting part 136 and the inner wall of the heating module mounting cavity along the axial direction.

Further, the outer diameter of the fan mounting cavity is smaller than the outer diameter of the heating module mounting cavity, and the outer diameter of the second limiting portion 136 is smaller than the outer diameter of the fan mounting cavity.

Further, the distances between the inner peripheral wall of the air supply outlet, the inner peripheral wall of the ventilation cavity and the shell 32 and the axis are sequentially increased, so that a stepped structure which is involute is formed, and the working efficiency of the drying device is further improved.

Further, in order to enhance the convenience of installation of the ducted fan 11, the fixing member 2 and the heating module 3, as shown in fig. 3, 5 and 7, the protection cover 9 is divided into a protection cover base 76 and a cover 77 which are symmetrical in upper and lower structures along the axis of the fan installation cavity and the heating module installation cavity, a buckle 762 is arranged at the joint of the protection cover base 76 and the cover 77, when the cover 77 is closed on the protection cover base 76, the ducted fan 11, the fixing member 2 and the heating module 3 are stably installed in the protection cover 9, and the protection cover base 76 and the cover 77 are fixed in a matched manner through the buckle 762.

Example two

As another embodiment of the present utility model, the present embodiment is further modified as follows on the basis of the first embodiment.

In the present embodiment, the first connection portion 21 is provided with the wire outlet structure 24; as a specific embodiment of the present utility model, the wire outlet structure 24 is a wire outlet slot formed by the first connection portion 21 being recessed inward toward one side of the ducted fan 11, one end of the wire outlet slot extends to the inner wall of the ventilation cavity to communicate with the ventilation cavity, the other end extends to the outer wall of the first connection portion 21 along the radial direction, communicates with the outer side of the first connection portion 21, and a wire harness for supplying power to the ducted fan 11 and the heating module 3 and sending/receiving instructions extends to the outside of the first connection portion 21 through the wire outlet structure 24; the internal circuit of the drying device is simplified, and the wire outlet structure 24 is positioned at the upstream of the heating module 3, so that the wire harness damage caused by the high temperature of the heating module 3 is avoided, and the service life and the stability of the drying device are improved.

Further, the bottom of the outlet slot is inclined from outside to inside in the air outlet direction, that is, the size of the opening of the outlet slot on the inner wall of the first connecting portion 21 is larger than the size of the opening formed on the outer wall of the first connecting portion 21; the groove bottom with the slope can prevent air leakage and further reduce noise generated during the operation of the drying device.

Further, the notch formed by the wire outlet groove extending to the inner wall of the first connecting part 21 is in smooth transition connection with the inner peripheral wall of the ventilation cavity; as one implementation mode of the utility model, the notch is in smooth transition connection with the inner peripheral wall of the ventilation cavity through a rounding structure; meanwhile, one side, attached to the first connecting portion 21, of the first limiting portion 135 is in smooth transition connection with the peripheral wall of the air supply outlet, so that the wire harness is prevented from being damaged due to the fact that the edges and the wire harness are rubbed with each other, and the service life of the drying device is further prolonged.

As one embodiment of the present utility model, the wire outlet groove penetrates the first connection part 21 along the concave direction, so that the first connection part 21 is in a C-shaped structure as a whole, and the wire outlet structure 24 is formed at an opening of the C-shaped structure; the second connecting portion 22 is directly exposed in the wire outlet groove at a position opposite to the position of the opening of the C-shaped structure near one end of the first connecting portion 21, and is used as the groove bottom of the wire outlet groove.

Or as an alternative to the above, the wire outlet structure 24 is a vent hole with one end located on the inner peripheral wall of the vent cavity and communicated with the vent cavity, and the other end extending to the outer peripheral wall of the first connecting portion 21 through the inside of the first connecting portion 21; according to the wire harness protection device, the wire outlet structure 24 is hidden in the first connecting portion 21, protection of the wire harness can be better achieved, meanwhile, the wire outlet structure 24 located in the first connecting portion 21 can be arranged to be a bent channel according to actual requirements, and fixation of the wire harness is facilitated.

Further, the heating module mounting cavity is provided with an outlet which is opposite to the notch formed by the outlet structure 24 extending to the outer wall of the first connecting part 21, and the wire harness passes through the outlet and extends to the outside of the heating module mounting cavity; the first connecting part 21 is provided with an error insertion preventing groove 25, a limit rib 7611 matched with the error insertion preventing groove 25 is correspondingly arranged in the heating module mounting cavity, and when the error insertion preventing groove 25 and the limit rib 7611 are matched in place, the wire outlet structure 24 is opposite to a wire outlet arranged on the heating module mounting cavity; the deviation of the wire outlet structure 24 from the wire outlet caused by the error of the installation direction of the first connecting part 21 is effectively avoided, and the assembly convenience is further improved.

Further, the wire outlet is arranged on the protective cover base 76, in the embodiment, the edge of the joint of the protective cover base 76 and the cover body 77 is recessed to form the wire passing groove 763, when the protective cover base 76 and the cover body 77 are connected in a matched manner, the wire passing groove 763 is matched with the edge of the cover body 77 to form the wire outlet, the notch formed on the outer wall of the first connecting part 21 of the wire outlet is completely contained in the wire passing groove 763, namely, the wire harness extending out of the wire outlet can be fully contained in the wire passing groove 763, so that the wire harness is prevented from being clamped between the cover body 77 and the protective cover base 76 when the cover body 77 is closed, and the assembly convenience is improved; preferably, the edge of the protective cover base 76 is flush with the upper end of the notch, the notch is completely contained in the wire outlet and is consistent with the size of the wire outlet, the size of the wire outlet is further reduced while the wire harness is ensured to smoothly pass through, and the strength and the attractiveness of the whole structure are improved.

In the present embodiment, the first connection portion 21 includes a first portion 211 and a second portion 212, the first portion 211 and the second portion 212 are sequentially disposed from the second connection portion 22 in the direction of the first connection portion 21, and the first portion 211 and the second portion 212 are integrated; the radial section of the first part 211 is a rectangle, one side close to the protective cover 9 is provided with a chamfer, the radial section of the second part 212 is a rectangle, four corners of the rectangle are provided with arc chamfers, the shape of the inner surface of the protective cover 9 is matched with that of the inner surface of the protective cover, and a notch extending to the outer wall of the first connecting part 21 through the wire slot 763 is positioned on the outer peripheral wall of the second part 212; the outlet is located opposite the arc chamfer location of the second portion 212 from the heater mounting cavity.

As an embodiment of the present utility model, the misplug preventing slot 25 is located on the second portion 212, specifically, the misplug preventing slot 25 is formed by vertically and upwardly recessing from the bottom of the second portion 212, the bottom of the protecting cover base 76 is provided with a limit rib 7611 opposite to the misplug preventing slot 25 and vertically extending upwards, because the protecting cover base 76 and the upper cover are separated along the horizontal direction, the fixing member 2 needs to be inserted into the protecting cover base 76 along the vertical direction, and the limit rib 7611 and the misplug preventing slot 25 cooperate with each other to fully avoid the deviation of the outlet structure 24 from the outlet; preferably, the limit rib 7611 is located at a side of the second portion 212 away from the first portion 211, and a socket is formed at a side of the second portion 212 away from the first portion 211, and the limit rib 7611 is correspondingly close to the stop wall 137, so that the fixing stability of the fixing member 2 is further improved while the misplug preventing function is provided.

Furthermore, in order to further reduce the complexity of the circuit in the drying device and reduce the influence of the wire harness on the air supply efficiency of the drying device, the ducted fan 11 and the wiring end of the heating module 3 are arranged on one side close to the fixing piece 2, so that the overall length of the wire harness in the heating air supply channel is reduced, and the air supply efficiency is improved; meanwhile, the complexity of the wire harness in the heating air supply channel is reduced, and the maintenance difficulty of the drying device is reduced.

Further, the edge of the outlet is provided with a protective sleeve.

Example III

As another embodiment of the present utility model, the present embodiment provides a drying apparatus having the same internal structure as that of the embodiment, except that the structure of the protection cover 9 is different.

Specifically, the inner peripheral wall of the protective cover 9 is provided with an annular stop wall 137 protruding inwards, and the inner space of the protective cover 9 is divided into a fan installation cavity and a heating module installation cavity by a first limit part 135; the extension end of the stop wall 137 forms an air supply outlet, the fan installation cavity is communicated with the heating module installation cavity through the air supply outlet, the ducted fan 11 is fixed in the fan installation cavity, the heating module 3 is connected with the fixing piece 2, and the heating module installation cavity is fixed in the heating module installation cavity through the fixing piece 2.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited to the above-mentioned embodiment, but is not limited to the above-mentioned embodiment, and any simple modification, equivalent change and modification made by the technical matter of the present utility model can be further combined or replaced by the equivalent embodiment without departing from the scope of the technical solution of the present utility model.

Claims (10)

1. A drying device of a dish washer, comprising:

the protection cover (9) is internally provided with a fan installation cavity and a heating module installation cavity which are axially communicated;

the ducted fan (11) is positioned in the fan installation cavity;

the fixing piece (2) is arranged in the heating module mounting cavity and is close to one side of the fan mounting cavity, and the fixing piece (2) is provided with a ventilation cavity which is penetrated along the axial direction;

the heating module (3) is arranged in the heating module installation cavity through the fixing piece (2), and the duct fan (11) sends wind into the heating module (3) through the ventilation cavity of the fixing piece (2).

2. A drying apparatus of a dishwasher according to claim 1, characterized in that the heating module (3) comprises at least a housing (32), the fixing member (2) comprises a first connecting portion (21) and a second connecting portion (22) which are integrally provided, the fixing member (2) is fixed in the heating module mounting cavity by the first connecting portion (21), and is fixedly connected with the housing (32) by the second connecting portion (22), and a gap is provided between the outer circumferential wall of the housing (32) and the inner wall of the protective cover (9).

3. A drying apparatus of a dishwasher according to claim 2, characterized in that the first connection portion (21) has a radial cross-section of a size and shape adapted to the size and shape of the area enclosed by the inner surface of the radial cross-section of the heating module mounting cavity;

the first connecting part (21) is embedded at the end part of the heating module installation cavity, which is connected with the fan installation cavity.

4. A drying apparatus of a dishwasher according to claim 3, wherein the end of the heating module mounting chamber adjacent the fan mounting chamber has a radially converging stop wall (137), the converging end of the stop wall (137) forming the air supply outlet; the heating module installation cavity is communicated with the fan installation cavity through the air supply outlet, the section of the first connecting portion (21) is matched with the section of the heating module installation cavity, and when the fixing piece (2) is installed in place in the heating module installation cavity, the first connecting portion (21) is abutted to the stop wall (137).

5. A drying apparatus of a dishwasher according to claim 2, characterized in that the second connecting portion (22) protrudes or is recessed from the first connecting portion (21), the outer diameter of the second connecting portion (22) is smaller than or equal to the inner diameter of the housing (32), and one end of the housing (32) is sleeved on the second connecting portion (22), so that the heating module (3) is fixed in the heating module mounting cavity.

6. The drying device of a dishwasher according to claim 1, characterized in that a damper (12) is provided between the ducted fan (11) and the inner wall of the fan installation chamber, the inner peripheral wall of the damper (12) being in abutment with the peripheral wall of the ducted fan (11), the outer peripheral wall being in abutment with the inner peripheral wall of the fan installation chamber.

7. The drying device of a dish washer according to claim 6, wherein the shock pad (12) is provided with protruding structures (121) which are abutted against the inner peripheral wall of the fan installation cavity, the protruding structures (121) are elastic protruding blocks which are arranged at equal intervals along the circumferential direction of the shock pad (12), and the end parts of the protruding structures (121) are abutted against the inner peripheral wall of the fan installation cavity;

the inner peripheral wall of the fan installation cavity is provided with an installation rib which is arranged in a protruding mode, the installation rib is opposite to the protruding structure (121), and the end portion of the protruding structure (121) is abutted to the installation rib.

8. A drying apparatus of a dishwasher according to claim 6, characterized in that the damping pad (12) is provided with a saw-tooth like structure (122) which is in abutment with the bottom wall of the fan mounting cavity;

the sawtooth-shaped structure (122) is positioned at the end part of the shock pad (12) close to the air inlet side of the ducted fan (11), and is obtained by extending outwards from the end part along the axial direction and is abutted with the bottom wall of the fan installation cavity;

the end of the sawtooth-shaped structure (122) is arranged in a wave shape.

9. A drying apparatus for a dishwasher according to any one of claims 1-8, characterized in that the protective cover (9) is divided into two parts, namely a cover base (76) and a cover body (77), which are symmetrical in structure along the centre line of the fan mounting chamber and the heating module mounting chamber, the cover body (77) being connected to the cover base (76) by means of a snap-fit (762).

10. A dishwasher, characterized by comprising a drying device according to any one of claims 1 to 9.