Hot air device and dishwasher

Abstract

The present invention discloses a hot air device of a dishwasher and a dishwasher, comprising: a housing, a fan assembly, a heating assembly, and a humidity detection member, wherein an air duct and a detection channel are formed in the housing, the air duct has a first vent and a second vent, the detection channel has a third vent and a fourth vent, the fan assembly is used to drive the airflow in the air duct and the detection channel, the heating assembly is placed in the air duct, and the humidity detection member is constructed to detect the humidity of the airflow in the detection channel. Through the above technical solution, the problem of low detection accuracy caused by high temperature in the detection space is solved, thereby improving the drying effect of the dishwasher.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a heating device for a dishwasher and the dishwasher. Background Art

[0002] During the drying stage, the dishwasher uses a hot air device to blow hot air into the dishwasher cavity to speed up the drying of dishes. In order to achieve a better drying effect, it is necessary to continuously reduce moisture and humidity. However, due to different factors such as geography, climate, and seasons, the humidity of the gas driven by the fan will also be different (relatively).

[0003] In the related art, the humidity detection device is usually arranged in the washing chamber of the dishwasher, and the washing chamber is filled with high-temperature gas from the hot air device. The temperature seriously affects the relative humidity in the designated space, thus greatly reducing the accuracy of the humidity detector, and the humidity detector thus affects the drying effect of the dishwasher. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art to at least a certain extent. To this end, one object of the present invention is to provide a hot air device for a dishwasher, the hot air device having a detection channel and a humidity detection member for detecting the humidity in the hot air device and the washing chamber, thereby improving the accuracy of the humidity detection member and thus improving the drying effect of the dishwasher.

[0005] The second object of the present invention is to provide a dishwasher. By applying the above-mentioned hot air device, during the drying process of the dishwasher, the humidity detection element in the hot air device detects the humidity in the detection channel and selects different drying modes to improve the drying effect of the dishwasher.

[0006] The hot air device of a dishwasher according to an embodiment of the present invention comprises: a shell, a fan assembly, a heating assembly, and a humidity detector. An air duct and a detection channel are formed in the shell. The air duct has a first vent and a second vent, and the detection channel has a third vent and a fourth vent. The fan assembly is used to drive the airflow in the air duct and the detection channel. The heating assembly is placed in the air duct, and the humidity detector is constructed to detect the humidity of the airflow in the detection channel.

[0007] The hot air device of the dishwasher according to the present invention has a shell, and an air duct and a detection channel are formed in the shell. The humidity detection element is used to detect the humidity in the detection channel, which can improve the detection accuracy of the humidity detection element.

[0008] In addition, the hot air device of the dishwasher according to the present invention may also have the following additional technical features:

[0009] In some embodiments, the housing includes a first side wall and a second side wall, the detection channel is formed between the first side wall and the second side wall, and the air duct and the detection channel are respectively located on opposite sides of the first side wall, and an installation groove is provided on the second side wall, the installation groove is connected to the detection channel, and the humidity detection element is installed in the installation groove.

[0010] In some embodiments, a wire hole is provided on the bottom wall of the mounting groove, and a wire harness connected to the humidity detection element is led out from the wire hole.

[0011] In some embodiments, a sheath is provided in the installation groove, the sheath wraps the humidity detection element, and the sheath and the humidity detection element are sealed and matched, and the probe of the humidity detection element extends into the detection channel.

[0012] In some embodiments, the detection channel is L-shaped, the first side wall includes a first branch and a second branch, and the first branch and the second branch are connected in an L-shape.

[0013] In some embodiments, a reinforcing rib is provided at the connection between the first branch and the second branch, the reinforcing rib is respectively connected to the first branch and the second branch, and the mounting groove is directly opposite to the reinforcing rib.

[0014] In some embodiments, the third vent is located upstream of the heating assembly relative to the air flow direction from the first vent to the second vent in the air duct.

[0015] In some embodiments, the fan assembly has an air outlet, and the third vent of the detection channel and the first vent of the air duct are both directly opposite to the air outlet.

[0016] In some embodiments, the third vent is in a flared shape.

[0017] In some embodiments, a guide rib is provided in the shell, and the guide rib is directly opposite to the fourth vent.

[0018] In some embodiments, the housing includes: a first part, a second part, and a third part, the fan is arranged in the first part, one end of the second part is connected to the first part, and the second part has the air duct and the detection channel, the third part is connected to the other end of the second part, the space of the third part is connected to the second ventilation port and the fourth ventilation port, and the third part is provided with a hot air outlet.

[0019] The dishwasher according to the present invention comprises: a machine body and a hot air device, wherein the machine body has a washing cavity, the hot air device is placed on the machine body, the hot air device is the aforementioned hot air device, and the outlet of the hot air device is connected to the washing cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 1 is a top view of a hot air device in one embodiment of the present invention.

[0021] Figure 2 1 is a top view of a hot air device according to an embodiment of the present invention (the detection component is not shown).

[0022] Figure 3 4 is a cross-sectional view of a detection channel of a hot air device in one embodiment of the present invention.

[0023] Figure 4 It is a partial schematic diagram of a hot air device in one embodiment of the present invention (showing a detection channel).

[0024] Figure 5 Schematic diagram of the structure of a dishwasher in one embodiment of the present invention.

[0025] Reference numerals:

[0026] Dishwasher 100,

[0027] Hot air device 1, fan assembly 14, heating assembly 15, guide rib 18, hot air outlet 19, protruding structure 20,

[0028] Housing 11, first part 111, second part 112, third part 113,

[0029] Air duct 12, first vent 121, second vent 122,

[0030] Detection channel 13, second side wall 132, third vent 133, fourth vent 134, reinforcing rib 135,

[0031] The first side wall 131, the first branch 1311, the second branch 1312,

[0032] Humidity detection element 16, probe 161, wiring harness 162,

[0033] Installation slot 17, sheath 171, wire hole 172,

[0034] Machine body 2, washing chamber 3, water vapor outlet 4. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0036] like Figure 1-4 As shown, this embodiment provides a hot air device 1 of a dishwasher 100, comprising: a housing 11, a fan assembly 14, a heating assembly 15, and a humidity detector 16. The housing 11 is used to form an air duct 12, providing a place for gas flow. The housing 11 is also used to form a detection channel 13, and the detection channel 13 is used to flow the indoor temperature gas driven by the fan assembly 14. The fan assembly 14 is used to drive the air flow in the air duct 12 and the detection channel 13. The heating assembly 15 is placed in the air duct 12, and is used to heat the air flow in the air duct 12, so that the air flow becomes a high-temperature air flow after passing through the heating assembly 15. The humidity detector 16 is used to detect the humidity of the air flow in the detection channel 13.

[0037] Specifically, an air duct 12 and a detection channel 13 are formed in the housing 11. The air duct 12 has a first vent 121 and a second vent 122, and the detection channel 13 has a third vent 133 and a fourth vent 134. The fan assembly 14 is used to drive the airflow, that is, when the fan assembly 14 is working, the airflow in the air duct 12 enters and is discharged through the first vent 121 and the second vent 122; the airflow in the detection channel 13 enters and is discharged through the third vent 133 and the fourth vent 134, that is, the fan assembly 14 can provide power for gas circulation for the air duct 12 and the detection channel 13 at the same time. The heating assembly 15 is used to heat the airflow in the air duct 12 and is placed in the air duct 12. The heating assembly 15 can heat the airflow in the air duct 12. Therefore, the detection channel 13 circulates a relatively low-temperature gas driven by the fan assembly 14, and the gas temperature is less affected by the heating assembly 15 (or the airflow in the detection channel 13 is not affected by the heating assembly 15). The humidity detection member 16 is used to detect the humidity of the airflow in the detection channel 13.

[0038] After the fan assembly 14 starts working, the fan assembly 14 drives the airflow from the first vent 121 of the air duct 12 to the second vent 122. During the circulation process, the airflow passes through the heating assembly 15 in the air duct 12. The airflow passing through the heating assembly 15 is heated by the heating assembly 15 to become a high-temperature airflow and is discharged from the second vent 122. The obtained high-temperature gas is used to dry the dishes in the washing chamber 3 of the dishwasher 100 to achieve a drying effect. The fan assembly 14 can also drive the airflow from the third vent 133 of the detection channel 13 to the fourth vent 134. During the circulation process, the humidity detection component 16 is used to detect the humidity of the airflow in the detection channel 13. Since the airflow does not flow through the heating assembly 15, the airflow temperature will not be too high. When the humidity detection component 16 detects, the relative humidity of the airflow is not affected by the temperature, thereby obtaining a more accurate detection value.

[0039] It should be noted that the fan assembly 14 can also drive the airflow from the fourth vent 134 of the detection channel 13 to the third vent 133, that is, the fan assembly 14 drives the gas in the washing cavity 3 of the dishwasher 100 into the detection channel 13, so that the humidity detection element 16 can detect the humidity of the air in the washing cavity 3 driven into the detection channel 13. The effect of setting one humidity detection element 16 to detect the humidity of two areas is achieved, and the structure of the hot air device 1 is simplified.

[0040] According to the hot air device 1 of the dishwasher 100 of the embodiment of the present invention, during the operation of the hot air device 1, the fan assembly 14 drives the gas to circulate in the detection channel 13, and the humidity detection element 16 is used to detect the humidity in the detection channel 13, thereby improving the drying effect of the dishwasher 100.

[0041] In addition, the detection channel 13 can reduce the heat in the air duct 12 from being directly dissipated outside the housing 11, thereby reducing the outer surface temperature of the housing 11, reducing the impact on other components outside the housing 11, and increasing the service life of the housing 11. Therefore, the detection channel 13 can not only improve the detection accuracy, but also play a role in isolating the heat of the air duct 12 and preventing the heat of the air duct 12 from being lost.

[0042] Optionally, the fan assembly 14 can be configured to drive the gas from the third vent 133 to the fourth vent 134 by the operation of the same fan and to drive the gas from the fourth vent 134 to the third vent 133 by the reverse operation of the fan. The fan assembly 14 can also be configured to provide another fan of appropriate volume at the fourth vent 134 to drive the gas to flow from the fourth vent 134 to the third vent 133, so as to detect the humidity of the gas in the washing chamber 3.

[0043] Optionally, the housing 11 includes a first side wall 131 and a second side wall 132 for forming a detection channel 13, the air duct 12 and the detection channel 13 are respectively located on opposite sides of the first side wall 131, and a mounting groove 17 is provided on the second side wall 132, the mounting groove 17 is connected to the detection channel 13, and the humidity detection element 16 is installed in the mounting groove 17. In other words, the detection channel 13 is arranged on the outer wall of one side of the air duct 12, and the outer wall of one side of the air duct 12 is the first side wall 131 of the detection channel 13. Therefore, the detection channel 13 can be formed by adding the second side wall 132, and the detection channel 13 is simple in structure and easy to manufacture. The second side wall 132 is provided with a mounting groove 17 for installing the humidity detection element 16, that is, the mounting groove 17 and the second side wall 132 are integrated, which is convenient for the humidity detection element 16 to detect the humidity of the gas in the detection channel, thereby improving the accuracy of the detection.

[0044] Of course, the installation groove 17 can be integrally formed with the second side wall 132, or can be separately formed and assembled on the second side wall 132. The humidity detection member 16 can be installed in the installation groove 17 by interference fit, or a magnetic attraction structure, for example, can be provided on the bottom wall of the installation groove 17 to enable the humidity detection member 16 to be stably and quickly positioned in the installation groove 17.

[0045] Optionally, a wire hole 172 is provided on the bottom wall of the mounting groove 17 to facilitate the layout of the wiring harness 162 of most humidity detection components 16 . The wiring harness 162 connected to the humidity detection component 16 can be led out from the wire hole 172 , which is conducive to the arrangement and connection of the wiring harness 162 .

[0046] Optionally, a sheath 171 may be provided in the installation groove 17, and the sheath 171 is used to wrap the humidity detection element 16, and the sheath 171 is sealed with the humidity detection element 16, so that the deviation of the humidity detection element 16 during installation can be reduced, and the gap between the installation groove 17 and the humidity detection element 16 can be reduced to prevent airflow or humid airflow from entering the installation groove 17, thereby improving the service life and installation stability of the humidity detection element 16. The probe 161 of the humidity detection element 16 extends into the detection channel 13, so that the humidity detection element 16 can quickly and accurately detect the airflow in the detection channel 13. The probe 161 of the humidity detection element 16 may not extend into the detection channel 13.

[0047] like Figure 2-4 As shown, optionally, the detection channel 13 is L-shaped, and the first side wall 131 includes a first branch 1311 and a second branch 1312, and the first branch 1311 and the second branch 1312 are connected in an L-shape, which is conducive to airflow. Since the air duct 12 and the detection channel 13 are respectively provided on both sides of the first side wall 131, and the detection channel 13 is L-shaped, in order to increase the strength of the combined surface, a reinforcing rib 135 is provided at the connection between the first branch 1311 and the second branch 1312 of the first side wall 131, which can increase the service life of the first side wall 131. Among them, the reinforcing rib 135 can be connected to the first branch 1311 and the second branch 1312 respectively, and the mounting groove 17 is opposite to the reinforcing rib 135 and is arranged in parallel with the humidity detection member 16, so that the airflow flowing in the detection channel 13 can be detected by the humidity detection member 16, thereby improving the detection accuracy.

[0048] Optionally, the third vent 133 is located upstream of the heating assembly 15 relative to the airflow direction from the first vent 121 to the second vent 122 in the air duct 12, and after the airflow enters the air duct 12, the airflow enters the detection channel 13 through the third vent 133 before passing through the heating assembly 15. Since the airflow becomes high-temperature airflow after passing through the heating assembly 15, the third vent 133 is arranged upstream of the heating assembly 15 to ensure that the airflow entering the detection channel 13 is normal temperature airflow.

[0049] In addition, if the airflow in the detection channel 13 is affected by the temperature, the temperature of the surface of the humidity detection element 16 will also increase. The temperature increase will affect the operation and life of the humidity detection element 16. Therefore, during humidity detection, the temperature around the humidity detection element 16 must be lowered before the humidity can be detected. Therefore, it takes about 1-2 hours to remain stationary, which seriously affects the working efficiency of the dishwasher 100.

[0050] Optionally, the fan assembly 14 has an air outlet, and the third vent 133 of the detection channel 13 and the first vent 121 of the air duct 12 are both directly opposite to the air outlet, so that the airflow generated by the fan assembly 14 can directly enter the air duct 12 and the detection channel 13 without energy loss. Among them, the third vent 133 is in a flared shape, and the flared third vent 133 is conducive to external gas entering the detection channel 13, ensuring the amount of airflow entering the channel, and providing a sufficient detection environment for the gas sample for the humidity detection element 16.

[0051] Optionally, a guide rib 18 is provided in the housing 11, and the guide rib 18 is directly opposite to the fourth vent 134, so that the guide rib 18 prevents water from splashing into the detection channel 13 when the dishwasher 100 is running, thereby contaminating the detection channel 13 or affecting the detection result of the humidity detection element 16. The guide rib 18 can also block the humid gas in the washing cavity 3 from entering the detection channel 13 during the detection process, thereby avoiding affecting the detection result.

[0052] Optionally, the housing 11 includes: a first part 111, a second part 112, and a third part 113. The fan is arranged in the first part 111, one end of the second part 112 is connected to the first part 111, and the second part 112 has an air duct 12 and a detection channel 13, the third part 113 is connected to the other end of the second part 112, the space of the third part 113 is connected to the second vent 122 and the fourth vent 134, and the third part 113 is provided with a hot air outlet 19. Thus, each part of the housing has different functions, and a hot air device 1 is formed through a reasonable combination. Among them, the first part 111, the second part 112 and the third part 113 can be set to be connected by snap or screw to facilitate the installation and replacement of accessories.

[0053] like Figure 1As shown, optionally, a protrusion structure 20 is provided on the inner surface of the shell 11, and the protrusion structure 20 is used to support the heating component 15 so as to separate the outer surface of the heating component 15 from the inner surface of the shell 11 to form a certain distance. The protrusion structure 20 can be set as a long strip of protrusions, and there can be a plurality of protrusions. The protrusion structure 20 is between the inner surface of the shell 11 and the heating component 15 to prevent the temperature of the heating component 15 from being too high and damaging the shell 11. In addition, the protrusion structure 20 can be set as a double-sided support with the inner surface of the shell 11, or it can be a single-sided support.

[0054] like Figure 5 As shown, the dishwasher 100 according to the present invention comprises: a machine body 2, a hot air device 1, and a washing chamber 3 in the machine body 2 for washing dishes. The hot air device 1 is placed on the machine body 2 and is used to generate hot air. The hot air outlet 19 of the hot air device 1 is connected to the washing chamber 3 to dry the dishes. The high-temperature steam generated after drying can be discharged from the water vapor outlet 4. During the drying process of the dishwasher 100, the humidity detection element 16 of the hot air device 1 detects the humidity in the detection channel 13 and selects different drying modes to improve the drying effect of the dishwasher 100.

[0055] like Figure 1 and Figure 2As shown, the hot air device 1 includes: a shell 11, a fan assembly 14, and a heating assembly 15. An air duct 12 can be formed in the shell 11, and the wall of the shell is constructed into a double-layer structure, and a detection channel 13 is constructed in the double-layer structure, and the shell 11 is constructed with the air duct 12. The air duct 12 can have a first vent 121 and a second vent 122, and the first vent 121 and the second vent 122 are used to form an air flow channel, and the first vent 121 is connected to the fan assembly 14. The third vent is connected to the first vent, and a part of the airflow entering the shell 11 through the first vent will enter the air duct, and then flow to the second vent through the air duct, and another part of the airflow entering the shell through the first vent will enter the detection channel 13 through the third vent. The detection channel 13 can be arranged around the outside of the air duct 12. The heating component 15 can be placed in the air duct 12, that is, two air flow channels are formed inside the shell 11, wherein the detection channel 13 is arranged at the periphery of the air duct 12 to prevent the shell 11 from being overheated. The fan component 14 can simultaneously deliver airflow to the air duct 12 and the detection channel 13. After the airflow enters from the first vent 121, it is heated by the heating component 15 in the air duct 12 to become high-temperature gas. The airflow enters the detection channel 13 from the third vent 131 and is directly discharged from the fourth vent 132 along the air flow channel. Therefore, the detection channel 13 transmits a relatively low-temperature airflow. Thereby, the influence of high temperature on the humidity detection accuracy can be reduced. The heat of the airflow in the air duct 12 cannot be directly dissipated outside the shell 11, which reduces the heat loss in the air duct 12 and can block the high temperature generated by the heating component 15, thereby improving the service life and safety of the hot air device 1.

[0056] Among them, since a heating component 15 is arranged in the air duct, when the heating component 15 has a wiring harness for power supply, communication, etc., a wiring harness guiding structure needs to be arranged, and the wiring harness guiding structure needs to pass through the outer shell for connecting the controller, etc. Therefore, the wiring harness guiding structure may affect the detection channel. Therefore, in the present invention, the third vent of the detection channel is arranged upstream of the heating component. However, at the location of the wiring harness guiding structure, the part of the third vent located there needs to be arranged downstream of the wiring harness guiding structure to avoid the detection channel being separated by the wiring harness with a computer structure. That is to say, a part of the third vent in the present invention is arranged upstream of the heating component, and the other part is arranged downstream of the wiring harness guiding structure (or downstream of the wiring hole, or opposite to the heating component), etc. Figure 1As shown, the portion of the third vent located upstream of the heating component can be directly opposite to the fan component, that is, the portion of the first vent located upstream of the heating component is consistent with the airflow direction, but the portion located downstream of the guide structure has an angle with the flow direction of the airflow (for example, perpendicular to each other). Therefore, a guide structure is required to guide the airflow so that the airflow can enter the detection channel more easily. Therefore, a guide structure can be set in the air duct, on the heating component or other positions to guide the airflow. Of course, in the present invention, the detection channel can also be set on the side of the housing where the wire harness guide structure is not set, so as to avoid the influence of the wire harness guide structure on the detection channel.

[0057] Therefore, part of the airflow generated by the fan assembly 14 enters the air duct 12. Since a heating assembly is provided in the air duct 12, the airflow entering the air duct 12 will exchange heat with the heating assembly and then flow to the second vent, that is, the airflow flows through the heating assembly 15 in the air duct 12, and the airflow is heated by the heating assembly 15 to become a high-temperature airflow, and is discharged from the second vent 122; another part of the airflow enters the detection channel 13 from the third vent 131. Since the detection channel 13 is provided around the outside of the air duct 12, the airflow in the detection channel 13 is separated from the air duct 12. Therefore, the heating assembly cannot directly heat the airflow in the detection channel 13. In other words, the heating assembly is separated from the detection channel 13. The airflow in the detection channel 13 cannot be directly heated by the heating assembly 15 placed in the air duct 12. Thus, the relatively low-temperature airflow is transmitted through the detection channel 13. A barrier is formed, and the heat in the air duct is difficult to directly exchange heat with the external environment of the hot air device, which effectively reduces the heat exchange efficiency and improves energy utilization. At the same time, since the air flow temperature in the detection channel 13 is relatively low, the heat exchange rate between the air flow in the detection channel 13 and the external environment can also be reduced.

[0058] In addition, if Figure 1 The second vent and the fourth vent can be arranged to be flush with each other, so that during the air flow, the airflow sent out by the second vent and the airflow sent out by the fourth vent will be mixed, thereby reducing the impact on the air flow temperature and increasing the air supply temperature.

[0059] Optionally, the housing 11 has a first part, a second part and a third part, the first part is configured to be used to set the fan assembly 14, the second part is used to heat the airflow, and the third part can be configured to be connected to the inner tank or other structure of the dishwasher to provide hot air into the dishwasher. One end of the second part is connected to the first part, and the other end of the second part is connected to the third part, one end of the third part is connected to the other end of the second part, and the other end of the third part is provided with an air outlet. Among them, the third part may include a limit ring, the limit ring is arranged around the air outlet, and a reinforcing rib is arranged on the limit ring. In addition, the connection between the first part and the second part is an arc transition.

[0060] In addition, the second part of the present invention may include a first sub-section and a second sub-section, the first sub-section and the second sub-section may be perpendicular to each other, and the internal space of the first sub-section and the internal space of the second sub-section are connected, and the internal space of the first sub-section and the internal space of the second sub-section construct an L-shaped air duct. A mounting plate may be provided between the first sub-section and the second sub-section, and the mounting plate is respectively connected to the first sub-section and the second sub-section, so as to improve the structural strength of the housing 11. The heating component 15 may be provided in the first sub-section, one end of the first sub-section is connected to the airflow driving device, and the airflow in the air duct is driven by the airflow driving device, wherein the heating component 15 is provided in the air duct and close to the airflow driving device.

[0061] In addition, a heat-blocking layer can be arranged in the shell 11 of the present invention, and the heat-blocking layer can be used to improve safety and stability, improve energy utilization, and save energy and protect the environment. Specifically, a heat-blocking layer can be arranged in the air duct 12, and a heat-blocking air duct can be formed in the heat-blocking layer. The heating component 15 can be arranged in the heat-blocking air duct, and there can be a gap between the heat-blocking layer and the shell 11 to form a heat-blocking channel. In other words, the interior of the hot air device 1 can be arranged in three layers, and the high-temperature airflow heated by the heating component 15 can flow in the heat-blocking air duct. The heat-blocking layer can have a gap with the side wall of the air duct 12 to form a heat-blocking channel, thereby blocking a part of the heat and preserving the heat without dissipating it. The detection channel 13 arranged on the side wall of the air duct 12 can further block the heat through the circulating low-temperature airflow, thereby generating a double-channel double-layer barrier, which can achieve the effect of blocking the high temperature generated by the heating component 15 and improving the service life and safety of the hot air device 1. Among them, the heat-blocking layer can be made of sheet metal or other materials with high temperature resistance and heat insulation, but the present invention is not limited to this. Optionally, the heat-blocking layer may include a first cover body and a second cover body. The first cover body and the second cover body may be buckled together to form a heat-blocking air duct. The first cover body and the second cover body may be buckled together by plugging and setting a snap-on method, or connecting ears may be set on the first cover body and the second cover body to be connected by screws or the like, which is convenient for the production or replacement of accessories. A fixing device for positioning the heating component 15 is provided on one of the first cover body and the second cover body to facilitate the installation and removal of the heating component 15. For example, square fixing modules are provided at both ends of the heating component 15, wherein six or four fixing modules may be provided at both ends, and the installation method may be interference fit or the like to improve the stability of the heating component 15. In addition, if Figure 1 and Figure 2 As shown, a protruding structure 20 can be provided on the inner surface of the shell 11. The protruding structure 20 can support the thermal barrier layer and separate the outer surface of the thermal barrier layer from the inner surface of the shell 11 to form a certain distance. The protruding structure 20 can be provided as a long strip of protruding blocks, and a plurality of protruding structures 20 can be provided. The protruding structure 20 can be between the inner surface of the shell 11 and the thermal barrier layer to prevent the thermal barrier layer from being overheated and damaging the shell 11. In addition, the protruding structure 20 can be provided with a double-sided support on the inner surface of the shell 11, or it can be a single-sided support. Of course, the protruding structure 20 can also be provided on the thermal barrier layer.

[0062] In addition, the heating component may include a protective shell and a heating element, wherein the outer shell 11, the protective shell and the heating component 15 are arranged in sequence from the outside to the inside, and there is a gap between the outer shell 11 and the protective shell suitable for airflow, and there is a gap between the protective shell and the heating component 15 suitable for airflow. By setting the gap, while promoting airflow, the thermal insulation performance between the protective shell and the heating component 15, and between the outer shell 11 and the protective shell can be improved to reduce heat transfer and improve energy utilization. Among them, a first protrusion protruding inwardly can be set on the outer shell 11, and the protective shell is supported by the first protrusion so that a gap is constructed between the outer shell 11 and the protective shell. A second protrusion protruding inwardly can be set on the protective shell, and the second protrusion supports and protects the heating component 15, so that a gap is constructed between the protective shell and the heating component 15. Among them, the outer shell 11 includes a first shell and a second shell, the first shell and the second shell are buckled together to form an air duct, the inner bottom surface of the first shell and the inner bottom surface of the second shell are both provided with a plurality of first protrusions arranged at intervals, the protective shell includes a first protective cover and a second protective cover, the heating component 15 is arranged between the first protective cover and the second protective cover, and the inner bottom surface of the first protective cover and the inner bottom surface of the second protective cover are both provided with second protrusions.

[0063] The housing 11 includes a first shell and a second shell. The first shell includes a first bottom plate and first side plates arranged on both sides of the first bottom plate, and the second shell includes a second bottom plate and second side plates arranged on both sides of the second bottom plate. The two first side plates and the two second side plates are respectively connected to form an air duct between the first shell and the second shell, wherein a protrusion is provided on the outer surface of the first side plate, and a recessed structure is formed between the protrusion and the edge of the first side plate; the inner side of the end of the second side plate is configured as a notch, the end edge of the first side plate is embedded in the notch, and the unit of the second side plate is embedded in the recess, so as to realize the snap fit between the first shell and the second shell. Figure 4 and Figure 5 The structures of the first shell and the second shell are shown respectively.

[0064] The protective shell may include a first protective cover and a second protective cover, and the first protective cover and the second protective cover may be buckled with each other to jointly define an installation cavity. The heating assembly 15 is arranged in the installation cavity. Among them, the heating assembly 15 includes stacked heating elements and heat sinks, and the heating elements may be heating elements such as heating tubes. Optionally, the outer shell 11 of the hot air device also has limiting ribs, and the limiting ribs are arranged on both sides of the protective shell. A part of the limiting ribs is embedded in the protective shell, which plays the role of positioning the protective shell, and can facilitate the installer to quickly install the heating assembly 15 and improve the stability of the heating assembly 15. Multiple limiting ribs can be arranged on both sides of the protective shell to further improve the stability of the installation; the limiting ribs can be arranged as a strip structure arranged along the air flow direction to prevent it from obstructing the air flow. The limiting ribs on the side of the protective shell close to the air inlet can be arranged as an integral structure with the two blocking ribs, and the limiting ribs are extended in the direction of the blocking ribs away from the air inlet. The two limiting ribs are parallel to each other, which simplifies the structure and strengthens the structural strength. In addition, the protective shell has a connecting structure, which extends out of the outer shell 11. The connecting structure can be used to connect electrical components (such as grounding), or to improve the positioning stability of the heating component 15.

[0065] Furthermore, positioning rib groups are provided at both opposite ends of the protective shell along the airflow direction, and the heating component 15 is positioned between the positioning rib groups at both ends of the protective shell. The positioning rib group includes at least one positioning rib. By providing the positioning rib group to position the heating component 15, the heating component 15 can be fixed to prevent the heating component 15 from shaking. At the same time, because the positioning rib group is used to fix the heating component 15, when the heating component 15 is damaged and needs to be disassembled and replaced, it can be easily disassembled and assembled. Furthermore, the positioning rib can be set in the shape of a flat sheet, for example, the positioning rib is set in the shape of a flat sheet parallel to the airflow direction. In this way, the obstruction of the positioning rib to the airflow can be effectively reduced, the air resistance in the airflow channel can be reduced, and the circulation efficiency and effect of the airflow can be improved. Optionally, the positioning rib group includes a plurality of positioning ribs, and the plurality of positioning ribs in the positioning rib group are arranged on opposite sides of the protective shell along the thickness direction, and the two sides of the protective shell along the width direction of the protective shell are provided with positioning ribs on either side of the two sides of the protective shell along the thickness direction, and the plurality of positioning ribs in the positioning rib group extend toward the center of the protective shell, thereby making the connection between the heating component 15 and the protective shell more stable, and further reducing the possibility of shaking of the heating component 15. Optionally, the positioning rib group includes four positioning ribs, which are arranged in a generally rectangular shape, and the four positioning ribs extend toward the center of the rectangle; in addition, the positioning rib group can also be set to one, two, three or other number of positioning ribs, thereby effectively improving the positioning effect of the heating component 15. Optionally, the positioning ribs are stamped on the protective shell, and the positioning ribs are configured in the shape of spring sheets, and such a setting can simplify the processing process and reduce the production cost. Specifically, a part of the protective shell is stamped toward the inside of the protective shell, and after the stamping is completed, one end of the positioning rib is connected to the wall of the protective shell, and the other end of the positioning rib extends toward the inside of the protective shell.

[0066] Optionally, the first cover body has two end edges along the length direction provided with first flanges bent toward the second cover body, and the second cover body has two end edges along the length direction provided with second flanges bent toward the first cover body, and the first cover body and the second cover body are fastened together by the cooperation of the first flange and the second flange.

[0067] The heating assembly 15 may include a heating element and a heat sink, wherein the heating element and the heat sink are arranged on the inner side of the protective shell, wherein the heat sink is attached to the heating element (or may be spaced apart), thereby improving the heat dissipation efficiency and facilitating heating of the airflow passing through the heat sink and the heating element.

[0068] like Figure 5 In the present invention, hot air can be sent into the dishwasher through a hot air device, and a ventilation structure is additionally provided on the dishwasher to realize air circulation, thereby achieving the effect of hot air drying. In addition, the present invention can also adopt other methods to dissipate heat.

[0069] For example, the present invention also provides a door opening device for a dishwasher, which includes a base, a door pushing member, an elastic member and a driving member.

[0070] Specifically, the door pusher is movably arranged on the base body relative to the base body. In other words, the door pusher is arranged on the base body and is movable relative to the base body. The door pusher can open the door by moving. One end of the elastic member abuts against the door pusher, and the elastic member can provide a thrust to the door pusher, thereby driving the door pusher to open the door, and the damping effect of the elastic member can maintain the open state of the door body. The driving member abuts against the other end of the elastic member, and the driving member is configured to be suitable for pressing the other end of the elastic member. The driving member can compress the elastic member to cause the elastic member to undergo elastic deformation. At this time, the elastic member will provide an elastic force to the door pusher, thereby driving the door pusher to move for opening the door.

[0071] For example, in a dishwasher with the door opening device, when the temperature inside the dishwasher reaches a certain level during the drying stage, the door can be driven to open by the door opening device. Specifically, the door opening device presses the elastic member through the driving member, and the elastic member is compressed under the driving action of the driving member, thereby providing a thrust to the door push member through the elastic member. When the pressure provided by the elastic member to the door push member reaches the force required to open the door, the door can be opened to a certain angle. At this time, the moisture inside the inner tank is discharged, thereby improving the drying effect of the tableware. In addition, since an elastic member is provided between the driving member and the door push member, when the door is opened, if the driving member is reset, the elastic member will still provide a certain thrust to the door push member, thereby maintaining the open state of the door.

[0072] According to the door opening device of the dishwasher of the present invention, an elastic member is provided. After the door body is opened, the elastic deformation of the elastic member can support the door pushing member, so that the door pushing member has a certain thrust, thereby prompting the door body of the dishwasher to maintain an open state.

[0073] Among them, during the drying process, when the door body is maintained in an open state by the elastic deformation of the elastic member, it can be ensured that the airflow in the dishwasher is discharged through the gap in the door body, thereby realizing the discharge of high-temperature moisture in the dishwasher and improving the drying efficiency in the dishwasher.

[0074] Optionally, the seat body in the present invention may include a base and a protective cover, a cavity is defined between the base and the protective cover to accommodate the driving member and the elastic member, and the protective cover and the base may be connected by snapping, specifically, a hook is provided on the protective cover, and a buckle is provided on the base, and the hook on the protective cover snaps with the buckle on the base to realize the connection between the protective cover and the base, wherein a plurality of hooks may be arranged on the protective cover at intervals along the circumferential direction, and buckles corresponding to the plurality of hooks are provided on the base.

[0075] In addition, the base body may be provided with a connection ear, which may be fixed to the top of the inner tank of the dishwasher by means of a connection ear screw, so that the accessories can be easily disassembled or replaced. In addition, the connection ear may be provided on the protective cover, and the base is provided between the protective cover and the inner tank, so that the stability of the connection between the protective cover and the inner tank can be improved in the process of connecting the inner tank by means of the connection ear.

[0076] In some embodiments of the present invention, the driving member includes a transmission part and a driving member. The transmission part is rotatably arranged on the seat body, and the transmission part abuts the other end of the elastic member. The driving member is configured to drive the transmission part to rotate so that the transmission part presses the other end of the elastic member. During use, the driving member drives the transmission part to rotate. Since the transmission part abuts the elastic member, the transmission part presses the elastic member when rotating. This facilitates the arrangement of various components of the driving member. The driving member is connected to the elastic member by the transmission part, so that the driving force is transmitted to the elastic member. In addition, the rotation of the transmission part on the seat body will be hindered by the seat body, that is, the rotation of the transmission part has a certain damping. After the driving member drives the transmission part to compress the elastic member, if the driving member is reset, since the reset of the transmission part has a certain damping, the reset of the transmission part can be limited, thereby continuing to provide a certain pressure against the elastic member.

[0077] In addition, when the driving part is in a non-working state, that is, when the driving part does not apply a pressing force to the transmission part, the driving part and the transmission part may be in contact or not in contact.

[0078] In addition, in the present invention, only a driving part may be provided without a transmission part, and the driving part is in direct contact with the elastic contact; of course, the transmission part may also be in the form of sliding along a predetermined track.

[0079] Furthermore, the driving part abuts against the transmission part to drive the transmission part to rotate, and the distance between the position of the transmission part abutting against the elastic member and the hinge position of the transmission part is greater than the distance between the position of the transmission part abutting against the driving part and the hinge position of the transmission part. In other words, the transmission part is configured in the form of a lever, and the length of the power arm of the lever structure is less than the length of the resistance arm. In this way, when the driving part provides a smaller displacement, the position on the transmission part connected to the elastic member will have a larger displacement through the amplification of the lever structure, which can facilitate the rapid response of the door opening device. In addition, the structure of the driving member is simple and convenient for maintenance.

[0080] Optionally, the transmission part can be a rotating rod with a rotating center axis on the rotating rod, and the distance between the rotating center axis and the elastic member is greater than the distance between the rotating center axis and the driving member, thereby achieving the effect of saving space and increasing the driving force.

[0081] Optionally, one end of the transmission part abuts against the elastic member, and the other end of the transmission part abuts against the driving part, and the hinged position of the transmission part and the seat body is located between the two ends of the transmission part, which can facilitate the arrangement of various components and improve space utilization.

[0082] Of course, the position on the transmission part connected to the driving part and the position on the transmission part connected to the elastic member may also be located on the same side of the rotation center axis of the transmission part.

[0083] Optionally, the seat body is provided with ribs, the ribs are arc-shaped with the rotation center axis of the transmission part as the center, the ribs include a plurality of ribs arranged at intervals in a direction away from the rotation center axis of the transmission part, and the transmission part is rotatably supported on the ribs. The ribs are centered on the center axis of the rotating rod and spread outward at a certain radius to stabilize the driving trajectory of the rotating rod and evenly transmit the driving force.

[0084] In addition, the ribs can also provide damping for the transmission part, so that after the door pusher pushes the door open, it can provide a certain damping for the resetting of the elastic part to maintain the door open state of the dishwasher. Of course, the ribs are mainly used to stabilize the rotation of the transmission part, prompting the transmission part to rotate along a predetermined trajectory and reducing the shaking of the transmission part during rotation.

[0085] Optionally, the driving part is a motor adapted to drive the transmission part to rotate after the temperature is higher than a predetermined value. That is, the driving part will drive the transmission part to rotate only after the temperature is higher than a predetermined value. Specifically, the motor can be a wax motor, which drives the transmission part to rotate by storing heat in the inner tank, and resets after cooling.

[0086] When the door opening device is applied to the dishwasher, the door opening device will push open the door body only when the temperature inside the dishwasher reaches a predetermined value, thereby facilitating rapid heating of the dishwasher and avoiding heat leakage during the heating process in the dishwasher. After the temperature inside the dishwasher reaches the predetermined value, the moisture in the dishwasher evaporates into the air inside the dishwasher, thereby dispersing the water droplets condensed on the inner wall of the dishwasher into the air. At this time, the door body can be quickly driven to open by a temperature-controlled motor to discharge the high-temperature moisture in the dishwasher to facilitate rapid drying of the dishwasher.

[0087] Optionally, the door pusher is in the shape of a rod, and a mounting hole is provided on the seat body, a part of the door pusher passes through the mounting hole and extends out of the seat body, and another part of the door pusher is confined in the seat body. By providing the mounting hole and setting the door pusher rod to different thicknesses, the pusher rod can move within a limited range, maintain the opening angle of the door body and prevent it from popping out.

[0088] Optionally, the elastic member may be a spring, and the spring may be sleeved on the door-pushing member.

[0089] The present embodiment provides a dishwasher, comprising: a machine body, a door body and a door opening device, wherein the machine body has a washing cavity; the door body is connected to the machine body to open and close the washing cavity; the door opening device is arranged on at least one of the machine body and the door body, and the door opening device is the door opening device of the dishwasher according to the above embodiment, and is configured to drive the door body to open a predetermined angle.

[0090] The machine body is used for washing, rinsing and drying dishes. The door body is used for opening or closing the washing chamber. The door opening device can open the door body and maintain it at a predetermined angle. For example, after the dishwasher washes the dishes in the washing chamber, in order to speed up the drying of the dishes, the water will be heated to evaporate the residual water on the dishes. At this time, the temperature-controlled motor in the door opening device drives the door body to open and discharge the high-temperature moisture in the washing chamber.

[0091] According to the dishwasher of the embodiment of the present invention, since the door opening device described in the above embodiment is provided, the door body can be opened by the door opening device and is suitable for maintaining the open state of the door body. During the drying process, the high-humidity gas in the dishwasher can be quickly discharged, thereby achieving faster drying in the dishwasher.

[0092] Optionally, the door opening device is configured such that when the door is opened to a predetermined angle, the elastic member maintains the door in an open state. That is, after the elastic member presses against the door-pushing rod to open the door, the thrust exerted by the elastic member pushes the door to a predetermined angle, and the elastic deformation of the elastic member can also support the door-pushing member to maintain the pushed-out state, thereby achieving continuous opening of the door.

[0093] Specifically, in combination with the aforementioned embodiment, after the door opening and closing device is opened, if the driving member is reset, the elastic member between the driving member and the door pushing member will still provide a certain elastic force to the door pushing member. Therefore, even if the driving member is reset, it can still provide a certain thrust to the door body to keep the door body open.

[0094] Optionally, the door body is hinged to the machine body, and a magnetic attraction structure is provided between the door body and the machine body. Optionally, one end of the door body is hinged to the machine body, and a magnetic attraction structure is provided between the other end of the door body and the corresponding end of the machine body, and the door opening device is provided on the machine body and is suitable for pushing the other end of the door body to open the door, wherein the door opening device is configured to apply a thrust not greater than the magnetic attraction between the door body and the machine body to the door body when the door body is closed, and to apply a thrust not less than the magnetic attraction between the door body and the machine body to the door body when the door body is opened at a predetermined angle and the driving member is reset. In other words, the door body and the upper end of the machine body are opened and closed by magnetic attraction, and only a small force is required to close the door tightly when closing the door body, thereby improving the sealing property of the machine body. When the driving member of the door opening device is working, the pressure applied to the door push member overcomes the magnetic attraction between the door body and the machine body, and after the driving member is reset, the force of the elastic deformation of the elastic member overcomes the magnetic attraction between the door body and the machine body. Thus, a balanced state is achieved to maintain the effect of opening the door body.

[0095] Specifically, when the door body is in a closed state, the magnetic attraction between the door body and the machine body will ensure that the door body is closed, and at this time, the magnetic attraction is large enough, so that even if the elastic member provides an elastic thrust between the door body and the machine body, as long as the elastic thrust is less than a predetermined value, the door body can be kept closed. When the door body is opened, the magnetic attraction between the door body and the machine body decreases, so that even if the driving member is reset and the elastic force of the elastic member is reduced, the door body can be kept open.

[0096] In addition, a door magnet may be provided on the door body, and a magnet may be provided on the machine body, and the magnetic attraction between the door body and the machine body may be realized through the cooperation of the magnet and the door magnet when the door body is closed.

[0097] Of course, in the present invention, stable closing between the door body and the machine body can also be achieved by other methods, and other door closing structures in the prior art can also be used in the present invention.

[0098] Optionally, a sealing ring may be provided on the machine body or the door body to seal the door and the inner tank to prevent leakage of water or steam.

[0099] Optionally, a door lock for detecting door opening may be provided on the top of the inner tank.

[0100] During the washing process of the dishwasher, the door body can be ensured to be in a closed state by the door lock, and during the drying process, the door lock is opened so that the door opening device can push the door body open.

[0101] Optionally, the lower end of the door body is hinged to the machine body, and the upper end of the door body is detachably connected to the machine body, and the top of the door body is tilted toward the machine body when the door body closes the washing chamber. Thus, the machine body can be opened by opening the upper end of the door body, and the washing chamber can be closed when the door body is closed. When the door body is closed, the top is tilted toward the machine body, so that the door body generates a component force of gravity when it is closed. The component force generated by the top of the door body tilting toward the machine body prevents the door body from sliding down when closing the door, and the thrust of the door opening device when opening the door is greater than the sum of the magnetic attraction and the component force of gravity generated by the tilt of the door body, so that the door body is stably opened.

[0102] In some embodiments of the present invention, the dishwasher further comprises a door balancing mechanism, which is respectively connected to the door body and the machine body to provide damping for the opening of the door body. The door balancing mechanism may comprise a tension spring, a pull rope, a pulley and a connecting portion, one end of the tension spring is connected to the machine body, one end of the pull rope is connected to the other end of the tension spring, the connecting portion is connected to the other end of the pull rope, and the pull rope is passed around the pulley, wherein the connecting portion is connected to the door body, the connecting portion extends downward and toward the machine body and the end portion is connected to the pull rope, and the connection between the connecting portion and the pull rope deviates from the pivot axis of the door body, at least a portion of the pulley is lower than the connecting portion, and the pull rope is passed around the lower side of the pulley. Thus, after the door opening device opens the door body, the door balancing mechanism will provide a certain damping to the door body to hinder the opening of the door body, thereby balancing the door body and maintaining the state of the door body.

[0103] According to an embodiment of the present invention, a dishwasher comprises an inner tank and an air inlet device, wherein the air inlet device is connected to the inner tank to ventilate the inner tank. In the drying stage, the dishwasher generates a flow of wind in the inner tank through the air inlet device, and uses an exhaust fan to discharge high-temperature moisture to achieve the effect of drying dishes.

[0104] In addition, the dishwasher of the present invention can also filter the gas entering the fan assembly 14 through the air purification component to prevent secondary pollution and improve the cleaning effect of the dishwasher 100. The air purification component seals at least a portion of the inlet of the fan assembly 14, so at least part of the gas will first pass through the air purification component when entering the fan assembly 14, and the part of the fan assembly 14 sealed by the air purification component can filter dust or other impurities in the gas, so that the gas entering the fan assembly 14 is purified. The air purification device can be provided on the hot air device 1, and the air purification device seals at least a portion of the inlet of the fan assembly 14 to achieve purification of the gas entering the hot air device 1, thereby improving the cleaning effect of the dishwasher 100.

[0105] In the present invention, the air purification component seals at least a portion of the inlet of the fan component 14 , that is, the air purification component completely seals the inlet of the fan component 14 ; or the air purification component seals a portion of the inlet of the fan component 14 .

[0106] When the air purification component completely closes the inlet of the fan component 14, the airflow entering the air duct through the inlet of the fan component 14 will pass through the air purification component. At this time, all the airflow will be purified by the air purification component, so that the filtering effect of the air purification component on the airflow can be effectively guaranteed, and the cleanliness of the airflow sent to the washing chamber can be effectively improved, thereby improving the stability of the hot air device. Further, the hot air device 1 can be set in a way that when the air purification component is blocked, the inlet of the fan component 14 cannot enter the air, and the power supply is cut off.

[0107] In addition, during the long-term operation of the air purification component, dust accumulation in the air will block the surface of the air purification component, resulting in the inability of gas to flow smoothly, affecting the normal operation of the hot air device 1. Therefore, in the present invention, the air purification component can also be set as a part of the entrance of the closed fan component 14, so that when the air purification component is blocked by dust, air can enter the fan from the unclosed part of the air purification component, and then enter the entrance of the fan component 14, so as to ensure the normal operation of the hot air device 1, avoid the impact on the hot air device 1 caused by the user's failure to replace the air purification component in time, or the fire risk caused by the heating element 17 having no airflow passing through and the heating element 17 having too high a temperature, thereby improving the performance and safety of the hot air device 1.

[0108] Of course, when the air purification component does not completely block the inlet of the fan component 14, the hot air device 1 can also be configured to cut off the power supply when the air purification component is blocked and the inlet of the fan component 14 cannot take in air.

[0109] Optionally, the inlet of the fan assembly 14 includes a main air inlet and an auxiliary air inlet, the air purification assembly closes the main air inlet, and the auxiliary air inlet is open. In this way, most of the gas can enter the fan assembly 14 through the main air inlet to achieve the purpose of purifying the air, and the auxiliary air inlet is used to allow the gas to enter the inlet of the fan assembly 14 from the open auxiliary air inlet when the air purification assembly is blocked by dust, so as to ensure that the hot air device 1 can continue to operate. Of course, the air purification assembly may also not be provided with an auxiliary air inlet, and may be provided in a form of partially closing the main air inlet, etc.

[0110] The auxiliary air outlet is open, which is relative to the main air outlet being closed by the air purification component, that is, when the airflow enters the air duct through the auxiliary air outlet, it will not be filtered by the air purification component. However, other devices with little effect on ventilation performance can be set at the auxiliary air outlet, such as a filter with a larger mesh.

[0111] Optionally, the auxiliary air outlet is arranged around the main air outlet, which can save the space occupied by the air purification component. It can also be arranged that the auxiliary air outlet includes multiple sections arranged around the main air outlet. The multiple auxiliary air outlets 2 can ensure that enough air enters the fan component 14 when the main air outlet is not flowing, and improve the strength of the fixed structure installation and the overall stability of the air purification component.

[0112] Of course, in the present invention, the auxiliary air outlets and the main air outlets may also be arranged in other forms, for example, the main air outlets and the auxiliary air outlets may be arranged in a plurality of rings staggered inside and outside, arranged left and right, and the like.

[0113] Optionally, the air purification component includes: a fixing structure and a filter element, the filter element is installed on the main air outlet and is used to filter the air entering from the main air outlet, and the fixing structure is installed on the housing 11 and is configured in a ring shape and is used to fix the filter element on the main air outlet, which can improve the stability of the filter element when the airflow passes through the air purification component. The filter element is prevented from falling off due to excessive driving force of the fan component 14, thereby improving the safety of the hot air device 1.

[0114] In addition, setting up a fixing structure can also improve the sealing between the filter element and the shell 11, thereby reducing the airflow entering the air duct from the gap between the filter element and the shell 11. In addition, the fixing structure in the present invention can be set to be integrally formed with the shell 11.

[0115] Optionally, the periphery of the first vent in the present invention is connected with a connection block, a plurality of connection blocks are arranged at intervals along the circumference of the first vent, and the connection block extends toward the center of the first vent, the fixed structure is annular, and the fixed structure is connected to the free end of the connection block, and the first vent is divided into: a main vent located inside the fixed structure; an auxiliary vent located outside the fixed structure, wherein the auxiliary vent actually includes a plurality of vents separated by the connection block. The connection block and the fixed structure may be in the form of an integral molding.

[0116] Specifically, the main air inlet corresponds to the inner side of the fixed structure, the auxiliary air inlet corresponds to the outer side of the fixed structure, the filter is installed on the inner side of the fixed structure, and the filter covers the inner side of the fixed structure. That is to say, the fixed structure is arranged between the main air inlet and the auxiliary sealing opening, and the fixed structure also defines the air inlet path of the auxiliary air inlet, thereby ensuring that when the hot air device 1 is operating normally, most of the air flow can enter through the main air inlet to achieve a good purification effect.

[0117] Optionally, the filter element in the present invention can be a filter screen. In order to achieve a better purification effect, the filter element can be set to be multi-layered. The filter element can be set to different meshes according to the use environment for the user to choose. For example, a filter element with a larger mesh number can be selected to achieve a better filtering effect. In addition, the filter element can be made of metal wire or activated carbon mesh, or when the filter element is multi-layered, each layer of the filter element can be set to a different material.

[0118] In addition, the filter element in the present invention can also be a filter device such as a HEPA net.

[0119] Optionally, the fan assembly 14 includes a centrifugal fan blade, the first vent is directly opposite to the centrifugal fan blade in the axial direction of the centrifugal fan blade, the air purification assembly closes the middle part of the first vent, and the peripheral part of the first vent is open. Therefore, the air intake in the axial direction of the fan assembly 14 is the largest, and the centrifugal fan blade causes most of the gas to enter the fan assembly 14 from the first vent, thereby achieving the effect of purifying the air.

[0120] In combination with the above-mentioned embodiment, the main air inlet is located in the middle part of the first vent, and the auxiliary air inlet is located at the peripheral position of the first vent. In other words, the main air inlet is opposite to the center position of the centrifugal fan blade, wherein the fan assembly 14 may include a fan housing and a fan blade, the fan housing is provided with a fan inlet and a fan outlet, the fan blade is arranged in the fan housing, and the fan blade may be a centrifugal fan blade, therefore, the fan inlet may be arranged on the side wall of the fan housing, and the fan inlet runs through the side wall of the fan housing along the axial direction of the fan blade, wherein the main air inlet is opposite to the fan inlet, and the auxiliary air inlet may be staggered with the fan inlet. In this way, the fan blade will generate a greater suction force on the airflow near the fan inlet during rotation, that is, the suction force at the fan inlet is greater, while the suction force around the fan inlet is relatively small. Since the air purification component is arranged at the main air inlet, when the wind resistance at the first vent is small, under the driving action of the centrifugal fan blade, most (or all) of the airflow will pass through the air purification component, thereby achieving effective purification of the airflow. As time goes by, the air purification component may be blocked. In this way, the wind resistance at the location of the air purification component is relatively large. Therefore, the airflow will enter the air duct from the auxiliary air outlet, which can reduce the impact on the airflow rate.

[0121] In other words, air flows to places with less resistance. When the air purification component is not blocked by dust, it is difficult for air to enter from the auxiliary air port. Therefore, opening the auxiliary air port will not affect the air purification effect. Only when the air purification component is blocked by dust and air cannot enter from the middle part of the fan component 14, will it enter the fan component 14 from the auxiliary air port.

[0122] Combination Figure 4Optionally, the air purification component is directly opposite to the fan inlet of the fan component 14, and the projection of the air purification component on the fan component 14 completely covers the fan inlet, so that the air can directly pass through the filter element into the main air outlet, and the air flow direction is a linear motion, which improves the efficiency of the fan component 14 in exhausting gas. When air needs to enter the fan from the auxiliary air outlet, the air purification component is set to be separated from the fan component 14, and a certain space is reserved so that the air flow can flow to the part close to the middle of the fan component 14 to enter the air duct.

[0123] Optionally, a fixing block is provided in the housing 11, the fixing block abuts against the outer periphery of the fan, and the fixing block includes at least two fixed blocks arranged at intervals along the circumference of the housing 11. The fixing block can be used to fix the fan assembly 14 to prevent the fan assembly 14 from vibrating or shaking during operation, and can also reduce the vibration transmission of the fan assembly 14, thereby stabilizing the fan assembly 14 and reducing the noise of the hot air device 1.

[0124] Combination Figure 1 Optionally, a plurality of guide ribs are provided on the housing 11, and the guide ribs are located at the outlet of the air duct. There can be a plurality of guide ribs, and the guide ribs are arranged in parallel from top to bottom at the air outlet, and the length of the guide ribs decreases from top to bottom. It is used to guide the airflow downward, so that the air discharged from the hot air outlet can first enter the bottom of the washing chamber 3, and then flow to the upper part of the washing chamber 3, so as to ensure that the high-temperature airflow can flow from bottom to top in the washing chamber 3, so that all parts of the tableware can be completely dried.

[0125] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0126] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0127] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0128] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0129] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A hot air device for a dishwasher, characterized in that: include: A shell, wherein an air duct and a detection channel are formed in the shell, the air duct has a first vent and a second vent, and the detection channel has a third vent and a fourth vent; A fan assembly, the fan assembly is used to drive the airflow in the air duct and the detection channel; A heating component, wherein the heating component is placed in the air duct; a humidity detection member, the humidity detection member being configured to detect the humidity of the airflow in the detection channel; The housing comprises a first side wall and a second side wall, the detection channel is formed between the first side wall and the second side wall, and the air duct and the detection channel are respectively located on opposite sides of the first side wall, and a mounting groove is provided on the second side wall, the mounting groove is communicated with the detection channel, and the humidity detection element is installed in the mounting groove; The third vent is located upstream of the heating component relative to the air flow direction from the first vent to the second vent in the air duct; the fan component has an air outlet, and the third vent of the detection channel and the first vent of the air duct are both opposite to the air outlet.

2. The hot air device of the dishwasher according to claim 1, characterized in that: A wire hole is provided on the bottom wall of the installation groove, and a wire harness connected to the humidity detection element is led out from the wire hole.

3. The hot air device of the dishwasher according to claim 1, characterized in that: A sheath is arranged in the installation groove, the sheath wraps the humidity detection component, and the sheath and the humidity detection component are sealed and matched, and the probe of the humidity detection component extends into the detection channel.

4. The hot air device of the dishwasher according to claim 1, characterized in that: The detection channel is L-shaped, the first side wall includes a first branch and a second branch, and the first branch and the second branch are connected to form an L-shape.

5. The hot air device of the dishwasher according to claim 4, characterized in that: A reinforcing rib is provided at the connection between the first branch and the second branch, the reinforcing rib is connected to the first branch and the second branch respectively, and the mounting groove is directly opposite to the reinforcing rib.

6. The hot air device of the dishwasher according to claim 1, characterized in that: The third vent is in a flared shape.

7. The hot air device of the dishwasher according to claim 1, characterized in that: A guide rib is arranged in the shell, and the guide rib is directly opposite to the fourth vent.

8. The hot air device of the dishwasher according to claim 1, characterized in that: The housing comprises: a first part, wherein the fan is disposed in the first part; A second part, one end of which is connected to the first part, and the second part has the air duct and the detection channel; The third part is connected to the other end of the second part, the space of the third part is connected to the second ventilation port and the fourth ventilation port, and the third part is provided with a hot air outlet.

9. A dishwasher, characterized in that: include: A machine body, wherein the machine body has a washing chamber; A hot air device, wherein the hot air device is placed on the machine body, and the hot air device is the hot air device according to any one of claims 1 to 8, and an outlet of the hot air device is connected to the washing chamber.

Images