Clothing humidity detection device and dryer

Abstract

A clothing humidity detection device includes a drying inner drum, lifting ribs protruding from the inner wall of the drying inner drum, a main control board, a sensor detection metal sheet, a conductive ring, a first elastic conductive contact device, and a second elastic conductive contact device. The sensor detection metal sheet is disposed on the aforementioned lifting ribs; the conductive ring is insulated and disposed on the outer end face of the rotating shaft of the aforementioned drying inner drum, and the conductive ring is connected to the aforementioned sensor detection metal sheet via a wire. This utility model also discloses a clothes dryer. Clothes will tumble inside the drying inner drum under the action of gravity, friction, and the lifting ribs, so that different clothes and different parts of the clothes have a chance to come into contact with the drum wall and the sensor detection metal sheet, thereby activating the entire detection circuit, increasing the probability of the sensor detection metal sheet contacting the clothes, and obtaining more, more comprehensive, and more effective humidity values.

Description

Technical Field

[0001] This utility model relates to a clothing humidity detection sensor, and more particularly to a humidity detection device for use in a clothes dryer. This invention also relates to a clothes drying device. Background Technology

[0002] Most clothes dryers currently use contact-type humidity sensors to detect and determine the degree of drying of clothes. These sensors are generally located on the front side near the door or air vent. When the dryer is operating, the sensor is stationary relative to the drying drum, while parts of the clothes are in contact with the sensor through relative rotation and friction. Some dryers indirectly estimate the humidity of the clothes by detecting the temperature and humidity at the air inlet and outlet. However, the distribution and state of the clothes within the drying drum are uncertain, leading to the following problems with contact-type humidity sensors:

[0003] First, when there are few clothes or when the clothes are distributed inside the drum, the sensor cannot contact the clothes, resulting in detection failure. This leads to insufficient or excessive drying. Insufficient drying affects the user experience, while excessive drying increases energy consumption and may also damage the clothes.

[0004] Secondly, when clothes are stacked and overlapped in the drum, the contact-type humidity sensor can only detect a portion of the clothes on the front side, and there is basically no chance of contacting all the clothes and most of the area, resulting in insufficient or excessive drying.

[0005] Third, the signals collected by dynamic friction contact fluctuate greatly and are also affected by static electricity generated by the friction between the clothing and the metal detector, resulting in data distortion, detection failure, and insufficient or excessive drying.

[0006] Fourth, when the ambient temperature and humidity fluctuate, non-contact testing is greatly affected, leading to insufficient or excessive drying. Utility Model Content

[0007] The first technical problem to be solved by this utility model is to provide a clothing humidity detection device with high-quality humidity detection data acquisition, in light of the above-mentioned technical status quo.

[0008] The second technical problem to be solved by this utility model is to provide a clothes dryer with high quality of humidity detection data acquisition, in view of the above-mentioned technical status.

[0009] The technical solution adopted by this utility model to solve the first technical problem mentioned above is as follows: a clothing humidity detection device, including a drying inner drum and lifting ribs protruding from the inner wall of the drying inner drum, characterized in that the humidity detection device further includes

[0010] Main control board;

[0011] The sensor detects the metal sheet and is located on the aforementioned lifting rib;

[0012] An insulating conductive ring is disposed on the outer end face of the rotating shaft of the aforementioned inner drying drum, and the conductive ring is connected to the aforementioned sensor detection metal plate via a wire;

[0013] A first elastic conductive contact device is arranged on the rear side of the aforementioned inner drying drum, with one end in contact with the aforementioned conductive ring and the other end connected to the aforementioned main control board; and

[0014] The second elastic conductive contact device is arranged on the side wall of the aforementioned inner drying drum, with one end in contact and conductive with the side wall of the inner drying drum, and the other end connected to the aforementioned main control board.

[0015] Preferably, the lifting ribs are two symmetrically located on both sides of the inner wall of the drying tub, and each lifting rib is equipped with a sensor detection metal plate. Correspondingly, the conductive rings are two concentric circles, and the first elastic conductive contact device and the second elastic conductive contact device each have two sets of independent conductive components.

[0016] Preferably, the first elastic conductive contact device may include

[0017] case,

[0018] The conductive post is telescopically disposed within the aforementioned housing, and

[0019] A compression spring is provided inside the aforementioned housing and always forces the conductive post close to the conductive ring.

[0020] The specific configuration of the second elastic conductive contact device can be referenced from that of the first elastic conductive contact device.

[0021] Preferably, the conductive ring is a graphite conductive ring.

[0022] The conductive ring is preferably insulated as follows: an insulating disc is provided on the outer end face of the rotating shaft of the inner drying drum, and the conductive ring is disposed in the annular groove of the insulating disc.

[0023] Preferably, the lifting ribs are arranged in strips along the axial direction of the inner drying drum, and the sensor detection metal sheet is also arranged in strips along the length of the lifting ribs.

[0024] Preferably, the sensor detection metal plate is positioned at the tip of the lifting rib near the central axis of the inner drying drum, which facilitates the detection of the humidity of the clothes.

[0025] The technical solution adopted by this utility model to solve the second technical problem mentioned above is: a clothes dryer, including a drying inner tub on the body, a glass bowl on the front face of the body, the glass bowl can be flipped and the front port of the clothes dryer can be opened and closed, and a sensor metal plate for detecting the humidity of clothes is provided on the lifting rib of the drying inner tub.

[0026] Compared with the prior art, the advantages of this utility model are as follows: the clothes will tumble in the inner drum of the dryer under the action of gravity, friction and lifting ribs, so that different clothes and different parts of the clothes have a chance to come into contact with the drum wall and the sensor detection metal plate, thereby making the entire detection circuit conductive, increasing the probability of the sensor detection metal plate coming into contact with the clothes, and obtaining more, more comprehensive and more effective humidity values.

[0027] During drying, under the influence of gravity, friction, and the supporting force of the lifting ribs, the clothes remain relatively stationary with the side wall of the inner drying drum and the metal plate of the sensor within a certain range at the bottom of the inner drying drum. This facilitates the conduction of the detection circuit and eliminates the generation of static electricity, resulting in more effective and stable detection signal data. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of an embodiment.

[0029] Figure 2 This is a schematic diagram of the combined structure of the inner drying drum and the clothing humidity detection device.

[0030] Figure 3 This is a schematic diagram of the combined structure of the inner drying drum and the clothing humidity detection device from another perspective.

[0031] Figure 4 for Figure 3 An enlarged diagram showing the clothes after the inner dryer drum has been removed.

[0032] Figure 5 for Figure 4 Enlarged view of section A.

[0033] Figure 6 This is an enlarged view of the first elastic conductive contact device.

[0034] Figure 7 This is a three-dimensional sectional view of the first elastic conductive contact device.

[0035] Figure 8 This is a control principle diagram of a clothing humidity detection device. Detailed Implementation

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0037] like Figure 1 , Figure 2, Figure 3 and Figure 8 As shown, the dryer includes a body 100, an inner drying drum 1, a main control board 10, a sensor detection metal sheet 3, a conductive ring, a first elastic conductive contact device 5, and a second elastic conductive contact device 4. A glass bowl 101 is provided on the front end face of the body 100. The glass bowl 101 can be flipped and can open and close the front port of the dryer. The lifting rib 2 is raised on the inner drying drum 1.

[0038] Combination Figure 4 and Figure 5 As shown, the sensor detection metal plate 3 is disposed on the lifting rib 2; specifically, the lifting rib 2 is arranged in a strip shape along the axial direction of the inner drying drum 1, and the sensor detection metal plate 3 is also arranged in a strip shape along the length direction of the lifting rib 2. The sensor detection metal plate 3 is disposed at the tip of the lifting rib 2 near the central axis of the inner drying drum 1.

[0039] An insulating conductive ring is disposed on the outer end face of the rotating shaft 11 of the inner drying drum 1. The conductive ring is connected to the sensor detection metal plate 3 via a wire 31.

[0040] The first elastic conductive contact device 5 is arranged on the rear side of the inner drying drum 1, with one end in contact with the conductive ring for conduction, and the other end connected to the main control board 10; combined with Figure 6 and Figure 7 As shown, the first elastic conductive contact device 5 in this embodiment includes an upper shell 51, a lower shell 52, a conductive post 53, and a compression spring 54. The upper shell 51 and the lower shell 52 are assembled to form a housing. The conductive post 53 is telescopically disposed inside the housing. The compression spring 54 is disposed inside the housing and always forces the conductive post 53 to approach the corresponding conductive ring.

[0041] The second flexible conductive contact device 4 is arranged on the side wall of the inner drying drum 1, with one end in contact and conductive with the side wall 13 of the inner drying drum, and the other end connected to the main control board 10. The second flexible conductive contact device 4 is positioned and installed through the mounting plate 41. The specific structure of the second flexible conductive contact device 4 is the same as that of the first flexible conductive contact device 5, and the second flexible conductive contact device 4 has two conductive posts 43.

[0042] The lifting ribs 2 are located symmetrically on both sides of the inner wall of the inner drying drum 1. Each lifting rib 2 is equipped with a sensor detection metal plate 3. Correspondingly, there are two conductive rings arranged concentrically, including a first conductive ring 61 and a second conductive ring 62, both of which are made of graphite. The first elastic conductive contact device 5 and the second elastic conductive contact device 4 each have two sets of independent conductive components.

[0043] An insulating disk 12 is provided on the outer end face of the rotating shaft 11 of the inner drying drum 1, and a first conductive ring 61 and a second conductive ring 62 are provided in the corresponding annular groove of the insulating disk 12.

[0044] When the user puts clothes into the dryer and starts the drying program, the inner drying drum rotates. The clothes come into contact with the inner wall of the inner drying drum and the sensor detection metal plate on the lower lifting rib of the inner drying drum, which in turn activates the entire detection circuit. The main control board processes the data and obtains a humidity value S1.

[0045] As the inner drying drum continues to rotate, the clothes tumble inside the drum under the influence of gravity, friction, and the lifting ribs. They come into contact with the sensor detection metal plate on the lifting ribs at the bottom of the inner drying drum, thus activating the entire detection circuit. After processing by the main control board, a drying humidity value S2 is obtained.

[0046] At this time, when there are few clothes, the sensor at the top detects that the metal plate cannot contact the clothes, and therefore measures a humidity value that is greater than or equal to the initial preset value.

[0047] However, when there are a lot of clothes, the metal plate of the sensor at the top may also come into contact with the clothes, thus measuring the humidity value S1-1. At this time, the dryer's main control program can use this value to determine whether the amount of clothes put into the dryer by the user is large, and then adjust the drying program accordingly.

[0048] Advantage 1: Therefore, no matter how many clothes or what style of clothes the user puts in, the clothes will tumble inside the drying drum under the action of gravity, friction and lifting ribs, so that different clothes and different parts of the clothes have a chance to come into contact with the side wall and the sensor detection metal plate, thereby activating the entire detection circuit and obtaining more, more comprehensive and more effective humidity values.

[0049] Advantage 2: During drying, under the influence of gravity, friction, and the supporting force of the lifting ribs, the clothes remain relatively stationary with the side walls and sensor detection metal plates within a certain range at the bottom of the drying drum. This facilitates the conduction of the detection circuit and eliminates the generation of static electricity, resulting in more effective detection signal data.

Claims

1. A laundry moisture detection device comprising a drying inner tub (1) and a lifting rib (2) protrusively provided to an inner wall of the drying inner tub (1), characterized in that The clothing humidity detection device also includes Main control board (10); The sensor detects the metal sheet (3), which is located on the aforementioned lifting rib (2); An insulating conductive ring is disposed on the outer end face of the rotating shaft (11) of the aforementioned inner drying drum (1), and the conductive ring is connected to the aforementioned sensor detection metal plate (3) via a wire; The first elastic conductive contact device (5) is arranged on the rear side of the aforementioned inner drying drum (1), with one end in contact with the aforementioned conductive ring and the other end connected to the aforementioned main control board (10); and The second elastic conductive contact device (4) is arranged on the side wall of the aforementioned inner drying drum (1) and one end is in contact with the side wall of the inner drying drum (1) for conduction, while the other end is connected to the aforementioned main control board (10). 2.The laundry moisture detection device of claim 1, wherein The lifting ribs (2) are two symmetrically located on both sides of the inner wall of the drying inner tub (1). Each lifting rib (2) is equipped with a sensor detection metal plate (3). Correspondingly, the conductive rings are two concentric circles. The first elastic conductive contact device (5) and the second elastic conductive contact device (4) each have two sets of independent conductive components. 3.The laundry moisture detecting device of claim 1, wherein The first elastic conductive contact device (5) includes case; The conductive post (53) is telescopically disposed within the aforementioned housing, and A compression spring (54) is provided inside the aforementioned housing and always forces the conductive post (53) close to the conductive ring. 4.The laundry moisture detecting device of claim 1, wherein The conductive ring is a graphite conductive ring. 5.The laundry moisture detecting device of claim 4, wherein An insulating disc (12) is provided on the outer end face of the rotating shaft (11) of the inner drying drum (1), and the conductive ring is provided in the annular groove of the insulating disc (12). 6.The laundry moisture detecting device of claim 1, wherein The lifting ribs (2) are arranged in strips along the axial direction of the inner drying drum (1), and the sensor detection metal sheet (3) is also arranged in strips along the length direction of the lifting ribs (2). 7.The laundry moisture detecting device of claim 6, wherein The sensor detection metal sheet (3) is located at the tip of the lifting rib (2) near the central axis of the inner drying drum (1).

8. A clothes dryer having the clothing humidity detection device according to any one of claims 1 to 7.

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