CN215227382U - Hot air device and dish washing machine - Google Patents

Abstract

The utility model discloses a hot air device and dish washer that has it, hot air device includes: the air duct shell is provided with an air duct, an air inlet and an air outlet, and the air duct extends from the air inlet to the air outlet; the humidity sensor is mounted on the air duct shell and is configured to detect humidity within the air duct. Through above-mentioned technical scheme, can detect the inside humidity of inner bag when hot-blast apparatus is static, detect outside humidity when hot-blast apparatus moves, the user of being convenient for selects drying mode according to the testing result to improve dish washer's drying efficiency.

Description

Hot air device and dish washing machine

Technical Field

The utility model relates to a kitchen appliance technical field, in particular to a hot air device for dish washer and dish washer including this hot air device.

Background

When the dish washer is in a drying stage, hot air is blown into the dish washer cavity through the hot air device to accelerate the drying of the tableware. In order to achieve a better drying effect, the moisture must be continuously reduced and the humidity must be reduced. But due to different factors such as geography, climate, season, etc., the humidity conditions (relative) of the air driven by the fan will also be different.

In the correlation technique, usually set up humidity detection device inside the inner bag of dish washer, can only detect the inside humidity of dish washer inner bag, can not detect the outside gaseous humidity condition to influence the drying effect of dish washer.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the utility model is to provide a hot air device of dish washer, this hot air device have detection space and humidity transducer, detect the inside humidity of inner bag when hot air device is static, detect outside humidity when hot air device moves, and the user can select drying mode according to the testing result, and then improves dish washer's drying efficiency.

The second purpose of the utility model is to provide a dish washer, by applying the hot air device, the dish washer can detect the external humidity during the drying process; when the dishwasher stops drying, the internal humidity is detected so that the user can select different drying modes, thereby improving the drying effect of the dishwasher.

According to the utility model discloses a hot-blast device for dish washer, include: the air duct shell is provided with an air duct, an air inlet and an air outlet, and the air duct extends from the air inlet to the air outlet; the humidity sensor is mounted on the air duct shell and is configured to detect humidity within the air duct.

According to the utility model discloses hot-blast apparatus of dish washer can detect the inside humidity of inner bag when hot-blast apparatus is static, detects outside humidity when hot-blast apparatus moves, and the user of being convenient for selects drying mode according to the testing result to improve dish washer's drying efficiency.

In addition, the hot air device of the dishwasher according to the above embodiment of the present invention may further have the following additional technical features:

in some embodiments, the humidity sensor is disposed adjacent to the outlet.

In some embodiments, the hot air device further comprises: a sheath encasing at least a portion of the humidity sensor and cooperating with the air duct shell to form a sealed structure separating a detection end of the temperature sensor from a space exterior to the air duct shell.

In some embodiments, the air duct shell further has a detection space, the detection space is communicated with the air duct, the detection end of the humidity sensor is located in the detection space, the hot air device further includes a sheath, the sheath wraps at least a part of the humidity sensor, and the sheath and the air duct shell cooperate to form a sealing structure for separating the detection space from an external space of the air duct shell.

In some embodiments, the air duct shell includes a shell main body and an outer shell, the air duct is configured in the shell main body, the detection space is configured in the outer shell, the outer shell is disposed on the outer side of the shell main body, the outer shell is connected with the shell main body, and the shell main body is provided with a detection port for connecting the air duct and the detection space.

In some embodiments, one end of the outer housing is connected to the housing body and communicates with the detection port, the other end of the outer housing is open, and a portion of the sheath is inserted into the outer housing and closes the open end of the outer housing.

In some embodiments, a portion of the humidity sensor extends from the open end of the outer housing and is enclosed by the sheath.

In some embodiments, the outer housing comprises: mounting panel, apron, the apron lid is in on the mounting panel, the apron with construct between the mounting panel survey the space, wherein, the mounting panel with the apron all with the shell main part links to each other, just the apron is keeping away from towards in the direction of shell main part the mounting panel slope.

In some embodiments, the mounting plate is provided with a first rib, a second rib and a third rib, the first rib and the second rib are connected to the shell main body, the first rib and the second rib extend in a direction perpendicular to the shell main body, the third rib is arranged on one side of the first rib and the second rib, which is far away from the shell main body, and the first rib, the second rib and the third rib are used for positioning the humidity sensor and the sheath in a matching manner.

In some embodiments, the housing body includes a first portion and a second portion, the first portion and the second portion are perpendicular to each other, an L-shaped air duct is configured in the first portion and the second portion, and the mounting plate is disposed between the first portion and the second portion.

In some embodiments, the sheath includes a sleeve portion and a sealing portion, the sleeve portion is in a tubular shape with one end open and the other end closed, the sealing portion is connected to a periphery of the open end of the sleeve portion, and the sealing portion is attached to an inner surface of the detection space to construct the sealing structure, wherein a gap for communicating the air duct is formed between a detection end of the humidity sensor and the sleeve portion, a wiring end of the humidity sensor is connected to the sleeve portion in a nested manner, and an outlet for a wiring harness of the humidity sensor to pass through is formed in one end of the sleeve portion, which is far away from the sealing portion.

According to the utility model discloses a dish washer, include: the dish washing machine comprises a liner and a hot air device, wherein the hot air device is connected with the liner, the hot air device is used for the dish washing machine, and the air outlet is communicated with the inner space of the liner.

Drawings

Fig. 1 is a plan view of a hot air device of a dishwasher according to an embodiment of the present invention (in which a humidity sensor detects external humidity).

Fig. 2 is a plan view of a hot air device of a dishwasher according to an embodiment of the present invention (a humidity sensor detects internal humidity).

Fig. 3 is a plan view of a hot air device of a dishwasher according to an embodiment of the present invention (showing an assembly structure of a humidity sensor).

Fig. 4 is a sectional view of a hot air device of a dishwasher in an embodiment of the present invention.

Fig. 5 is an assembly view of a hot air device humidity sensor and a sheath of a dishwasher in accordance with an embodiment of the present invention.

Fig. 6 is a side view of a hot air device sheath structure of a dishwasher in an embodiment of the present invention.

Fig. 7 is a side view of a hot air device humidity sensor structure of a dishwasher in an embodiment of the present invention.

Fig. 8 is a side view of a structure of a heating element of a hot air device of a dishwasher in accordance with an embodiment of the present invention.

Reference numerals:

the hot air device 100 of the dishwasher, the air duct 10, the air inlet 10a, the air outlet 10b, the detection space 10c, the detection port 10d, the humidity sensor 2, the detection end 21, the sheath 3, the sleeving part 31, the sealing part 32, the outlet 30, the shell body 4, the first part 41, the second part 42, the outer shell 5, the cover plate 51, the mounting plate 52, the first rib 521, the second rib 522, the third rib 523, the heating element 6, the heating element 61, the heat dissipation plate 62, the heat dissipation plate 63, the protective shell 7 and the boss 71.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1 to 8, a hot air device 100 for a dishwasher according to an embodiment of the present invention includes: the air duct comprises an air duct shell and a humidity sensor 2, wherein the air duct shell is provided with an air duct 10, an air inlet 10a and an air outlet 10b, and the air duct 10 extends from the air inlet 10a to the air outlet 10 b; the humidity sensor 2 is mounted on the duct case for detecting the humidity of the gas, and the humidity sensor 2 is configured to be suitable for detecting the humidity inside the duct 10.

According to the utility model discloses hot-blast apparatus 100 of dish washer sets up humidity transducer on hot-blast apparatus 100, can be through the regulation to the air current direction in hot-blast apparatus 100, realize the humidity control to the inside and the external environment of dish washer to can realize measuring the humidity of the internal and external environment of dish washer fast, and then realize improving the performance of dish washer effectively to the more accurate control of dish washer.

Optionally, the utility model discloses can detect the inside humidity of inner bag when hot-blast apparatus is static, detect outside humidity when hot-blast apparatus moves, the user of being convenient for selects dry mode according to the testing result to improve dish washer's drying efficiency.

In practical operation, referring to fig. 1, when the hot air device is operated, the air flow flows from the air inlet 10a to the air outlet 10b, and at this time, the temperature sensor can detect the humidity of the air in the air duct 10 to determine the humidity condition of the air; referring to fig. 2, when the hot air device stops operating, air in the dishwasher liner can enter the air duct 10 from the air outlet 10b, and the humidity sensor 2 can detect the humidity of the air; or before the hot air device does not work, the air humidity of the inner container of the dish washing machine is detected by the method, so that the drying mode is determined better, and the drying efficiency is improved.

Alternatively, the humidity sensor 2 is provided adjacent to the outlet port 10 b. According to the foregoing, when humidity sensor 2 detects the humidity of the internal airflow, the humidity of the air in the inner container of the dishwasher needs to be detected, and the internal airflow enters air duct 10 through air outlet 10b, and is detected by humidity sensor 2. Therefore, the humidity sensor 2 is disposed at a position adjacent to the air outlet 10b, so that the accuracy of detecting the humidity of the internal air can be improved, and the air flow can flow to the vicinity of the humidity sensor 2 quickly, thereby improving the detection efficiency. Of course, the humidity sensor 2 may be disposed at other positions of the air duct housing.

Optionally, the hot air device further includes a sheath 3 for protecting the humidity sensor 2, the sheath 3 wraps at least a portion of the humidity sensor 2, and the sheath 3 cooperates with the air duct shell to form a sealing structure for separating the detection end 21 of the temperature sensor 2 from an external space of the air duct shell. Through setting up seal structure, can reduce the influence that external environment detected the precision to humidity transducer, especially under the condition that utilizes humidity transducer to detect the inside humidity of dish washer, through reducing the influence of dish washer exterior space to humidity transducer, can improve the detection precision to the inside humidity of dish washer effectively.

Optionally, the air duct shell further has a detection space 10c, the detection space 10c is communicated with the air duct 10, the detection end 21 of the humidity sensor 2 is located in the detection space 10c, the hot air device further includes a sheath 3, the sheath 3 wraps at least a part of the humidity sensor 2, and the sheath 3 and the air duct shell cooperate to form a sealing structure for separating the detection space 10c from an external space of the air duct shell.

Specifically, the detection space 10c communicates with the air duct 10; the humidity sensor 2 is installed on the air duct shell, and the detection end 21 of the humidity sensor 2 is located in the detection space 10c, so that the humidity sensor 2 can detect the humidity of the air flow in the air duct 10. The sheath 3 wraps at least a part of the humidity sensor 2, and the sheath 3 and the air duct shell cooperate to form a sealing structure for separating the detection space 10c and the outer space of the air duct shell. That is, the detection space 10c is sealed with respect to the external space, the detection space 10c is communicated with the air duct 10, and the humidity sensor 2 is disposed in the detection space 10c, so that the detection end 21 of the humidity sensor 2 can detect the air flow in the air duct 10 through the portion of the detection space 10c communicated with the air duct 10. From this, humidity transducer 2 can be protected to sheath 3 to improve humidity transducer 2 measuring degree of accuracy, and can improve humidity transducer 2's life, reduce cost. The seal structure that sheath 3 and wind channel shell cooperation formed can avoid humidity transducer 2 and outside space contact to improve the accuracy of testing result, consequently, above-mentioned structure is accurate to the detection of gas humidity, simple structure, easily realization, and be convenient for install and change the accessory, improved the accuracy and the practicality that the device detected.

According to the utility model discloses hot-blast device 100 of dish washer is through setting up detection space 10c to set up humidity transducer 2 in detection space 10c, can detect the inside humidity of inner bag when hot-blast device is static, detect outside humidity when hot-blast device moves, the user of being convenient for selects drying mode according to the testing result, with the drying efficiency who improves dish washer.

In addition, through setting up sheath 3, form one and communicate with wind channel 10 and with the outside space of wind channel shell apart survey space 10c, set up humidity transducer 2 in this survey space 10c, can detect the humidity in survey space 10c fast, and wind channel 10 and survey space 10c switch-on, the humidity in survey space 10c has also reflected the humidity in wind channel 10 simultaneously. Moreover, because the space in which the humidity sensor 2 is located is separated from the external space of the air duct shell, the influence of the external environment on the detection result of the humidity sensor 2 is avoided, and the detection precision of the humidity sensor 2 is effectively improved.

Optionally, the air duct shell includes a shell main body 4 and an outer shell 5, the air duct 10 is configured in the shell main body 4, the detection space 10c is configured in the outer shell 5, the outer shell 5 is disposed outside the shell main body 4, the outer shell 5 is connected to the shell main body 4, and the shell main body 4 is provided with a detection port 10d for connecting the air duct 10 and the detection space 10 c. That is, the humidity sensor 2 located in the detection space 10c can detect the gas in the air duct 10 through the detection port 10d communicated with the detection space 10c through the shell main body 4, and the detection area can be limited by setting the detection port 10d, so as to improve the accuracy of detection.

Alternatively, the case main body 4 and the outer case 5 may be an integrally constructed structure; the outer case 5 may be formed as a separate body, for example, by attaching the outer case 5 to a portion where the case main body 4 and the outer case 5 are connected, thereby facilitating maintenance and replacement.

Alternatively, one end of the outer case 5 is connected to the case main body 4 and communicates with the detection port 10d, the other end of the outer case 5 is opened, a part of the sheath 3 is embedded in the outer case 5 and closes the opened end of the outer case 5, and the opened portion of the outer case 5 can facilitate the mounting and dismounting of the sheath 3 and the humidity sensor 2 and save materials, reducing the weight of the apparatus. The sheath 3 can also play sealed effect when protecting humidity transducer 2, avoids humidity transducer 2 to contact non-detection zone to improve the accuracy of testing result.

Optionally, a part of the humidity sensor 2 extends out of the open end of the outer shell 5 and is wrapped by the sheath 3, according to the scheme, the outer shell 5 is communicated with the shell main body 4, the outer shell 5 extends partially outwards at the communicated position, one end of the outer shell 5 is connected with the shell main body 4, and the other end of the outer shell 5 is open, so that the mechanism of the outer shell 5 can be simplified, the part of the humidity sensor 2 extending out of the open end can be wrapped by the sheath 3, the structure can be simplified while the accuracy of the detection result is ensured, and the disassembly and the maintenance are convenient.

With reference to fig. 3 and 4, optionally, the outer casing 5 comprises: mounting panel 52, apron 51 are covered on mounting panel 52, construct detection space 10c between apron 51 and the mounting panel 52, and like this, the air current can get into detection space 10c, and detection space 10c is continuously full of by the gas that is surveyed, and humidity transducer 2's detection end 21 is located detection space 10c, can more accurate measurement gas humidity. The mounting plate 52 and the cover plate 51 are both connected to the housing main body 4, and the cover plate 51 is inclined toward the mounting plate 52 in a direction away from the housing main body 4, that is, a triangular detection space 10c may be configured, or the cover plate 51 is inclined downward after extending outward a certain distance along the housing main body 4, so as to configure the detection space 10c into a trapezoidal structure. After the detected airflow enters the detection area with the triangular or trapezoidal structure, the airflow can continuously rise after reaching the inclined plane, so that the detected airflow can stay in the detection space 10c for a longer time, the detection accuracy is improved, and the structure is simple and easy to realize.

With reference to fig. 3, optionally, a first rib 521, a second rib 522 and a third rib 523 are disposed on the mounting plate 52, the first rib 521 and the second rib 522 are both connected to the housing main body 4, the first rib 521 and the second rib 522 extend in a direction perpendicular to the housing main body 4, the third rib 523 is disposed on a side of the first rib 521 and the second rib 522 away from the housing main body 4, and the first rib 521, the second rib 522 and the third rib 523 cooperate to position the humidity sensor 2 and the sheath 3. The detection space 10c is formed between the mounting plate 52 and the cover plate 51, and particularly, the mounting plate 52 is provided with ribs for positioning, so that the humidity detection device can be quickly and stably positioned on the mounting plate 52, and the structure is simple.

Referring to fig. 2 and 3, optionally, the housing main body 4 includes a first portion 41 and a second portion 42, the first portion 41 and the second portion 42 are perpendicular to each other, the first portion 41 and the second portion 42 form an L-shaped air duct 10 therein, and the mounting plate 52 is disposed between the first portion 41 and the second portion 42. According to the utility model discloses hot-blast apparatus, first part 41 is close to air intake 10a, and second part 42 is close to air outlet 10b, and mounting panel 52 is located the breach department in L type wind channel 10 that first part 41 and second part 42 mutually perpendicular formed, can practice thrift the shared space of hot-blast apparatus from this, and first part 41, second part 42 and mounting panel 52 whole can constitute the rectangle structure promptly, and of course, the size of mounting panel 52 also can change according to the condition. Alternatively, the humidity sensor 2 may be disposed in an area adjacent to the second portion 42, and since the heating element 6 of the hot air device is disposed in a position adjacent to the air inlet 10a, that is, the heating element 6 is disposed in the first portion 41, the humidity sensor 2 is disposed on the case main body 4 of the second portion 42, it may be that the humidity sensor 2 is far from the heating element 6, while the humidity sensor 2 is adjacent to the air outlet 10 b. Humidity transducer 2 of being convenient for like this detects inside humidity, avoids receiving heating element's high temperature simultaneously and influences to improve the detection accuracy degree, improve humidity transducer 2 life. According to the foregoing solution, in the second portion 42 of the shell main body 4, the first rib 521 and the second rib 522 extend along a direction perpendicular to the shell main body 4, the third rib 523 is disposed at a side of the first rib 521 and the second rib 522 far from the shell main body 4, and the humidity sensor 2 can be positioned at a side wall of the air duct 10 of the second portion 42 to detect the humidity of the air flow in the air duct 10.

In addition, the housing main body 4 includes a first housing and a second housing that are fastened to each other, the air duct 10 is configured between the first housing and the second housing, the mounting plate 52 is connected to the first housing, and the cover plate 51 is connected to the second housing, and when the air duct 10 is configured by fastening the first housing and the second housing to each other, the aforementioned detection space 10c is also configured between the mounting plate 52 and the cover plate 51.

With reference to fig. 4 to 6, optionally, the sheath 3 includes a sleeve portion 31 and a sealing portion 32, the sleeve portion 31 is tubular with one end open and the other end closed, the sealing portion 32 connects a periphery of an open end of the sleeve portion 31, and the sealing portion 32 is attached to an inner surface of the detection space 10c to construct a sealing structure, wherein a gap for communicating the air duct 10 is formed between the detection end 21 of the humidity sensor 2 and the sleeve portion 31, a terminal of the humidity sensor 2 is connected to the sleeve portion 31 in a nested manner, and an outlet 30 for a wiring harness of the humidity sensor 2 to pass through is disposed at one end of the sleeve portion 31 far from the sealing portion 32. That is to say, the sheath 3 can protect the humidity sensor 2 and also can perform a sealing function, the sealing portion 32 of the sheath 3 is attached to the inner surface of the cover plate 51 to form the detection space 10c, one end of the sealing portion 32 is communicated with the second portion 42, and the other end is connected with the connecting portion 31; the sleeving part 31 is tubular, a part of the humidity sensor 2 is arranged in the sleeving part 31, and the sleeving part 31 is further provided with an outlet 30, so that the humidity sensor 2 is convenient to wire.

Alternatively, the sleeve portion 31 may be in other shapes that can cooperate to protect the humidity sensor 2, but the present invention is not limited thereto.

Optionally, a heating element 6 is arranged in the air duct shell, and the detection space 10c is communicated with the downstream space of the heating element 6. According to the foregoing aspect, the heating element 6 is provided in the first portion 41, and the detection space 10c communicates with the second portion 42, that is, the first portion 41 of the case main body 4 is located in the upstream space and the second portion 42 is located in the downstream space. The detection space 10c is arranged in the downstream space, so that the air flow heated by the heating element 6 can be detected, and the humidity of the air flow for drying the inner container of the dish washing machine can be conveniently judged by a user; while the detection space 10c is far from the heating element 6 to prevent damage due to high temperature.

In the extending direction along the air duct 10, the upstream is close to the air inlet 10a relative to the downstream, and the downstream is close to the air outlet 10b relative to the upstream. In addition, the utility model provides an air intake 10a and air outlet 10b that the utility model discloses in describe are convenient right the utility model discloses a technical scheme's understanding, air intake 10a in the utility model also can be used to the air inlet and the air-out equally, and air outlet 10b also can be used to air intake and air-out equally, that is to say, the air current in wind channel 10 can follow air intake 10a and flow to air outlet 10b, also can follow air outlet 10b and flow to air intake 10 a.

Referring to fig. 1 and 8, alternatively, the heating element may be composed of a heating element 61 and a heat radiating plate 62, and the heating element 61 is connected to the heat radiating plate 62. The heat dissipation plate 62 is composed of a plurality of heat dissipation fins 63 in a zigzag shape, the heating body transfers heat to the heat dissipation plate 62, and the air flow is heated after passing through the heat dissipation plate 62, so that the heat exchange area is increased, and the heating efficiency of the air flow is improved. Optionally, the heating element may be provided with a protective shell 7, the protective shell 7 may protect the air duct shell from accelerated aging due to direct contact with the heating element 6, so that the service life of the air duct shell is prolonged, meanwhile, safety accidents caused by contact between the heating element 6 and the air duct shell can also be avoided, and the safety of the heating device is improved.

Optionally, a boss 71 may be disposed on the protective shell 7, the boss 71 protrudes out of the inner surface of the protective shell 7, and the boss 71 supports the heating element 61, so that the heating element 61 is spaced apart from the inner surface of the protective shell 7, thereby further preventing the protective shell 7 and the air duct shell from being damaged due to the over-high temperature of the heating element 61, and achieving the effect of blocking high temperature, thereby improving the safety of the device. Specifically, the convex surface of boss 71 is the cambered surface, can reduce the processing degree of difficulty from this, and the convex surface that sets up boss 71 simultaneously is the cambered surface, can strengthen structural strength, and the curve of passivation boss 71 can prevent that boss 71 from dismantling other spare parts of in-process fish tail or fish tail installer at the installation simultaneously. For example, the boss 71 may be configured as a semicircular structure, and the circumference of the circle is tangent to the outer surface of the heating element 61, as shown in fig. 8, so that the contact area between the boss 71 and the heating element 61 can be reduced, and the boss 71 is prevented from being in a high-temperature state for a long time, thereby prolonging the service life of the boss 71. Alternatively, the boss 71 may be provided in plurality on the inner surface of the protective case 7. Alternatively, the boss 71 and the protective case 7 may be formed separately or integrally. Alternatively, bosses 71 are stamped and formed on the protective shell 7.

According to the utility model discloses a dish washer, include: the hot air device is a hot air device 100 used for the dish washing machine, and the air outlet 10b is communicated with the inner space of the inner container. Specifically, the hot air device is arranged on the machine body and used for generating hot air, and an air outlet 10b of the hot air device is communicated with the inner space of the inner container of the dish-washing machine so as to dry the tableware. During the drying process of the dishwasher, the airflow in the hot air device duct 10 can flow into the detection space 10c, and the detection end 21 of the humidity sensor 2 is located in the detection space 10c to detect the humidity; when the hot air device stops operating, air in the inner container of the dish washing machine can enter the air duct 10 from the air outlet 10b, and the humidity sensor 2 can detect the humidity of the air; or before the hot air device does not work, the air humidity of the inner container of the dish washing machine is detected by the method, so that the drying mode is determined better, and the drying efficiency is improved.

Fig. 1 and 2 respectively show a hot air device according to an embodiment of the present invention, wherein the hot air device includes a housing main body 4, the housing main body 4 has a first portion 41 and a second portion 42, the first portion 41 and the second portion 42 can be perpendicular to each other, an inner space of the first portion 41 and an inner space of the second portion 42 are connected, an L-shaped air duct 10 is formed by the inner space of the first portion 41 and the inner space of the second portion 42, a mounting plate 52 can be disposed between the first portion 41 and the second portion 42, and the mounting plate 52 is connected to the first portion 41 and the second portion 42 respectively. The heating element 6 may be disposed in the first portion 41, and one end of the first portion 41 is connected to the airflow driving device, and drives the airflow in the air duct 10 to circulate through the airflow driving device, wherein the heating element 6 is disposed in the air duct 10 and close to the airflow driving device. First part 41 is connected to the one end of second part 41, and the other end of second part 41 is connected with the third part, and the one end of third part cup joints the other end at second part 41, and the other end of third part has set up the air outlet, and wherein, the third part includes the spacing ring, and the spacing ring encircles the air outlet setting, has set up the strengthening rib on the spacing ring. In addition, the connection of the first portion and the second portion is rounded off.

The humidity detection of the air flow inside and outside the dishwasher can be controlled by controlling the air flow direction in the air duct 10.

For example, as shown in fig. 1, under the driving action of the airflow driving device, the airflow will flow from the airflow driving device to the air outlet, and will pass through the heating element 6 during the circulation process, wherein the heating element 6 may or may not be opened, and when the airflow passes through the detection port 10d, because the detection port 10d can be connected to the air duct 10 and the detection space 10c, the humidity sensor 2 disposed in the detection space 10c will perform humidity detection, thereby completing the detection of the humidity of the air outside the dishwasher.

For another example, as shown in fig. 2, the air flow may enter the air duct through the air inlet (for example, the air flow in the inner container spontaneously circulates in the air duct, or the air flow driving device is set to be in a form of driving the air flow in a forward direction and a reverse direction), the air flow will flow to the air inlet, and will pass through the heating element 6 during the circulation process, wherein the heating element 6 may be opened or not opened, and when the air flow passes through the detection port 10d, since the detection port 10d can be connected to the air duct 10 and the detection space 10c, the humidity sensor 2 disposed in the detection space 10c will perform humidity detection, thereby completing the detection of the humidity of the air in the dishwasher.

The utility model provides a shell main part 4 can include first casing and second casing, and first casing and second casing lock each other constructs air channel 10 between first casing and the second casing, and mounting panel 52 can link to each other with first casing, and apron 51 can link to each other with the second casing, and when first casing and the mutual lock of second casing constructed air channel 10, also can construct aforementioned detection space 10c between mounting panel 52 and the apron 51. Fig. 3 shows a schematic diagram of the first housing, wherein the mounting plate 52 may be provided with a first rib 521, a second rib 522 and a third rib 523, the first rib 521 and the second rib 522 may be connected to the housing main body 4, the first rib 521 and the second rib 522 may extend in a direction perpendicular to the housing main body 4, the third rib 523 may be provided on a side of the first rib 521 and the second rib 522 away from the housing main body 4, and the first rib 521, the second rib 522 and the third rib 523 may cooperatively position the humidity sensor 2 and the sheath 3. The detection space 10c can be formed between the mounting plate 52 and the cover plate 51, and particularly, the mounting plate 52 is provided with ribs for positioning, so that the humidity detection device can be quickly and stably positioned on the mounting plate 52, and the structure is simple.

Fig. 4 shows a cross-sectional view of a hot air device of a dishwasher, wherein the sheath 3 may include a sleeve portion 31 and a sealing portion 32, the sleeve portion 31 may be in a tubular shape with one end open and the other end closed, the sealing portion 32 may be connected to a periphery of the open end of the sleeve portion 31, and the sealing portion 32 may be attached to an inner surface of the detection space 10c to construct a sealing structure, wherein a gap for communicating with the air duct 10 may be provided between the detection end 21 of the humidity sensor 2 and the sleeve portion 31, a terminal of the humidity sensor 2 may be connected to the sleeve portion 31 in a nested manner, and one end of the sleeve portion 31 far away from the sealing portion 32 may be provided with an outlet 30 for a wiring harness of the humidity sensor 2 to pass through. That is to say, the sheath 3 can protect the humidity sensor 2 and also can perform a sealing function, the sealing portion 32 of the sheath 3 can be attached to the inner surface of the cover plate 51 to form the detection space 10c, one end of the sealing portion 32 can be communicated with the second portion 42, and the other end is connected with the connecting portion 31; the sleeving part 31 is tubular, a part of the humidity sensor 2 is arranged in the sleeving part 31, and the sleeving part 31 is further provided with an outlet 30, so that the humidity sensor 2 is convenient to wire.

Still further, FIG. 5 illustrates an assembly view of the hot air device humidity sensor and sheath; FIG. 6 shows a side view of a hot air device sheath configuration; FIG. 7 shows a side view of a hot air device humidity sensor configuration; fig. 8 shows a side view of the hot air device heating element configuration.

Fig. 8 shows a side view of a heating element structure of a hot air device, both ends relative to each other along the air flow direction in the protective shell 7 are provided with positioning rib groups, the heating assembly is positioned between the positioning rib groups at both ends in the protective shell 7, the positioning rib groups comprise at least one positioning rib, the heating assembly is positioned by setting the positioning rib groups, the heating assembly can be fixed, the heating assembly is prevented from shaking, meanwhile, the positioning rib groups are fixed to the heating assembly because of the utilization, when the heating assembly is damaged, the heating assembly is required to be disassembled and replaced, and the disassembly and the assembly can be facilitated.

Furthermore, the positioning ribs can be arranged into a flat sheet shape, for example, the positioning ribs are arranged into a flat sheet shape parallel to the air flow direction, so that the blocking effect of the positioning ribs on the air flow can be effectively reduced, the air resistance in the air flow channel is reduced, and the circulation efficiency and the effect of the air flow are improved.

Optionally, location muscle group is including a plurality of location muscle, and a plurality of location muscle in the muscle group of location divide locate protective housing 7 along the relative both sides of thickness direction, and protective housing 7 along the relative both sides of width direction of protective housing 7 in arbitrary side in the relative both sides of thickness direction all be equipped with the location muscle, and a plurality of location muscle in the muscle group of location all extend towards the central point of protective housing 7 puts, can make heating element and protective housing 7 be connected more firm from this, further reduce the possibility that heating element rocked.

Optionally, the positioning rib group includes four positioning ribs, the four positioning ribs are arranged in a substantially rectangular shape, and the four positioning ribs extend toward the center of the rectangular shape; in addition, the positioning rib group can be set to be one, two, three or other positioning ribs, so that the positioning effect on the heating assembly is effectively improved.

Optionally, a positioning rib is formed on the protective shell 7 in a stamping mode, and the positioning rib is in a spring plate shape, so that the processing procedure can be simplified, and the production cost can be reduced. Specifically, a part of the protective shell 7 is punched towards the interior of the protective shell 7, after the punching is completed, one end of the positioning rib is connected with the wall of the protective shell 7, and the other end of the positioning rib extends towards the interior of the protective shell 7.

Optionally, the protective casing 7 comprises an upper cover and a lower cover, which are mutually snapped to define together a mounting cavity.

Optionally, the upper cover is provided with first flanges bent towards the lower cover along the two end edges of the length direction, the lower cover is provided with second flanges bent towards the upper cover along the two end edges of the length direction, and the upper cover and the lower cover are buckled through matching of the first flanges and the second flanges.

Optionally, the lower cover is provided with a plurality of matching grooves along the edges of the two ends in the width direction, the inner surface of the shell is provided with a plurality of fixing blocks, and the matching grooves correspond to the fixing blocks one to one.

According to some embodiments of the invention, the heating assembly comprises a heating tube and a heat sink.

Specifically, the heat dissipation member is connected with the heating pipe, and the heat dissipation member and the heating pipe are stacked along the thickness direction of the protective shell 7, so that the heat dissipation member can better dissipate heat of the heating pipe, the heat dissipation member is internally provided with a gap extending along the air flow direction of the air duct, so that the air flow can flow through the gap in the heat dissipation member, thereby better reducing the temperature of the heat dissipation member,

in the description of the present invention, it is to be understood that the terms "length", "upper", "lower", "front", "rear", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (12)

1. A hot air device for a dishwasher, comprising:

an air duct housing having an air duct, an air inlet, and an air outlet, the air duct extending from the air inlet to the air outlet;

a humidity sensor mounted on the air duct shell, the humidity sensor configured to be adapted to detect humidity within the air duct.

2. The hot air device for a dishwasher according to claim 1, wherein the humidity sensor is provided at a position adjacent to the outlet port.

3. The hot air device for a dishwasher according to claim 1, further comprising:

a sheath encasing at least a portion of the humidity sensor and cooperating with the air duct shell to form a sealed structure separating a detection end of the temperature sensor from a space exterior to the air duct shell.

4. The hot air device for a dishwasher according to any one of claims 1 to 3, wherein the air duct housing further has a detection space which communicates with the air duct and in which a detection end of the humidity sensor is located, the hot air device further comprising a sheath which wraps at least a part of the humidity sensor and which cooperates with the air duct housing to form a sealing structure which separates the detection space from an outer space of the air duct housing.

5. The hot air device for a dishwasher according to claim 4, wherein the air duct housing comprises a housing main body and an outer housing, the air duct is configured in the housing main body, the detection space is configured in the outer housing, the outer housing is disposed at an outer side of the housing main body, the outer housing is connected to the housing main body, and the housing main body is provided with a detection port for connecting the air duct and the detection space.

6. The hot air device for a dishwasher according to claim 5, wherein one end of the outer case is connected to the case body and communicates with the detection port, the other end of the outer case is open, and a portion of the protector is embedded in the outer case and closes the open end of the outer case.

7. The hot air device for a dishwasher according to claim 6, wherein a portion of the humidity sensor protrudes from the open end of the outer housing and is wrapped by the sheath.

8. The hot air device for a dishwasher according to claim 6, wherein the outer case comprises:

mounting a plate;

a cover plate covering the mounting plate, the detection space being configured between the cover plate and the mounting plate,

wherein the mounting plate and the cover plate are both connected to the case main body, and the cover plate is inclined toward the mounting plate in a direction away from the case main body.

9. The hot air device for the dishwasher according to claim 8, wherein the mounting plate is provided with a first rib, a second rib and a third rib, the first rib and the second rib are connected to the housing body, the first rib and the second rib extend in a direction perpendicular to the housing body, the third rib is provided on a side of the first rib and the second rib away from the housing body, and the first rib, the second rib and the third rib are used for positioning the humidity sensor and the sheath in a matching manner.

10. The hot air device for a dishwasher according to claim 5, wherein the housing main body comprises a first portion and a second portion, the first portion and the second portion are perpendicular to each other, an L-shaped air channel is configured in the first portion and the second portion, and the mounting plate is disposed between the first portion and the second portion.

11. The hot air device for a dishwasher according to claim 4, wherein the sheath includes a socket part having a tubular shape with one end opened and the other end closed, and a sealing part connected to a circumferential edge of the opened end of the socket part and attached to an inner surface of the detection space to construct the sealing structure,

the detection end of the humidity sensor is communicated with a gap between the sleeving parts, the air duct is communicated with the gap between the detection end of the humidity sensor and the sleeving parts, the wiring ends of the humidity sensor are connected with the sleeving parts in a nested mode, and wire outlets for the wire harnesses of the humidity sensor to penetrate through are formed in one ends, far away from the sealing parts, of the sleeving parts.

12. A dishwasher, comprising:

an inner container;

the hot air device is connected with the inner container and is used for the dish washing machine according to any one of claims 1-11, and the air outlet is communicated with the inner space of the inner container.

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