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JP-2026075729-A - Clothes dryer

JP2026075729AJP 2026075729 AJP2026075729 AJP 2026075729AJP-2026075729-A

Abstract

[Problem] To provide a clothes dryer that is simple, does not require electricity, and can suppress the effect of static electricity on the drying detection unit. [Means] The clothes dryer 13 includes a rotating drum 15 for holding clothes and a drying detection unit 1A for detecting the degree of dryness of the clothes inside the rotating drum 15. The drying detection unit 1A is connected to an electronic unit 50 and includes a first conductive member 4 for detecting the electrical resistance value when clothes come into contact with it, and a base 3 made of an insulating material that holds the first conductive member 4. The base 3 is provided with a second conductive member 2 that is connected to ground, and the second conductive member 2 is arranged so that when the rotating drum 15 rotates, the clothes come into contact with the second conductive member 2 before the first conductive member 4. [Selection Diagram] Figure 3

Inventors

  • 溝内 勇人
  • 新城 周平
  • 小笠原 徹

Assignees

  • リンナイ株式会社

Dates

Publication Date
20260511
Application Date
20241023

Claims (7)

  1. A clothes dryer comprising a rotating drum for holding clothes and a drying detection unit for detecting the degree of dryness of the clothes inside the rotating drum, The drying detection unit is connected to an electronic unit and comprises a first conductive member for detecting the electrical resistance value when clothing comes into contact with it, and a base made of an insulating member for holding the first conductive member. The base is provided with a second conductive member that is connected to ground. A clothes dryer in which the second conductive member is arranged such that, when the rotating drum is rotating, the clothes come into contact with the second conductive member before the first conductive member.
  2. In the clothes dryer according to claim 1, The base has a configuration that protrudes into the rotating drum. The first conductive member is positioned on a portion that protrudes into the rotating drum of the base. A clothes dryer in which at least a portion of the second conductive member is positioned on a part of the base that protrudes into the rotating drum and protrudes further into the rotating drum than the first conductive member.
  3. In the clothes dryer according to claim 1, The base has an inclined surface and protrudes into the rotating drum. The first conductive member is disposed on the inclined surface of the base, A clothes dryer in which at least a portion of the second conductive member is positioned on a part of the base that protrudes into the rotating drum and protrudes further into the rotating drum than the first conductive member.
  4. In a clothes dryer according to any one of claims 1 to 3, A clothes dryer in which the second conductive member is arranged on both sides of the first conductive member so as to sandwich it.
  5. In a clothes dryer according to any one of claims 1 to 3, A clothes dryer in which the second conductive member has a longer width extending in the diametrical direction of the rotating drum or in the rotational direction of the rotating drum than the first conductive member.
  6. In a clothes dryer according to any one of claims 1 to 3, A clothes dryer in which the second conductive member is positioned diametrically outward from the first conductive member of the rotating drum.
  7. In a clothes dryer according to any one of claims 1 to 3, The drying detection unit is mounted on a metal plate member facing the inside of the rotating drum. A clothes dryer in which the second conductive member is configured to be in contact with the plate member and connected to ground.

Description

This invention relates to a clothes dryer equipped with a drying detection unit. Conventionally, some clothes dryers have been equipped with an anti-static device that removes static electricity from clothes in the rotating drum to reduce the influence of static electricity on the clothes on the electrode sensor that detects the degree of dryness of the clothes (Patent Document 1). Japanese Patent Publication No. 2019-97624 This is a schematic diagram showing the configuration of a clothes dryer according to Embodiment 1.This is a schematic diagram showing the view of the drum support at the front end of the rotating drum from the inside of the drum.This is a perspective view showing the drying detection unit in Embodiment 1.This figure shows the drying detection unit in Embodiment 1, where Figure (a) is a front view and Figure (b) is a side view.This is a perspective view showing the drying detection unit in Embodiment 2.This is a perspective view showing the drying detection unit in Embodiment 3.This is a perspective view showing the drying detection unit in Embodiment 4.This figure shows the drying detection unit in Embodiment 5, where Figure (a) is a front view and Figure (b) is a cross-sectional view. Embodiments of the present invention will be described below with reference to the accompanying drawings. (Embodiment 1) As shown in Figure 1, the clothes dryer 13 of Embodiment 1 has a rectangular parallelepiped body 14 inside which a rotating drum 15 for storing clothes is provided. A cylindrical clothes outlet 16 for loading and unloading clothes into and from the rotating drum 15 is provided on the front of the body 14, and a door 17 is provided to open and close this clothes outlet 16. Below the clothes outlet 16, a hot air outlet 18 is provided for discharging hot air from inside the rotating drum 15, and a filter 19 for collecting lint and the like is removablely attached to the hot air outlet 18. The hot air outlet 18 is connected to a communication duct 20 located below the rotating drum 15. A burner 21 that generates hot air is provided at the upper rear of the main body 14. A gas supply passage 22 for supplying fuel gas is connected to the burner 21. A valve unit 23, which is located at the lower rear of the main body 14, is connected to the gas supply passage 22, and a main gas pipe 24 is connected to the valve unit 23. Between the burner 21 and the rotating drum 15, a hot air duct 25 is provided to guide the hot air heated by the burner 21 into the rotating drum 15. The hot air duct 25 is equipped with an outlet temperature sensor 26 for detecting the temperature of the hot air sent out from the burner 21. A back plate 27, which is a metal plate member facing the inside of the rotating drum 15, is provided on the back of the rotating drum 15, and a clothing temperature sensor 28 is provided on this back plate 27. An exhaust duct 29 for discharging the hot air discharged from inside the rotating drum 15 to the outside is provided at the rear of the main body 14. The downstream end of the exhaust duct 29 is connected to an exhaust port 30 located on the upper wall of the main body 14, and the upstream end of the exhaust duct 29 is connected to a connecting duct 20 that communicates with the hot air outlet 18. An exhaust temperature sensor 31 for detecting the temperature of the hot air discharged to the outside is provided near the exhaust port 30 of the exhaust duct 29. A fan 32 is provided at the rear of the main body 14 to supply and discharge hot air into the rotating drum 15. A motor 33 is provided at the bottom of the main body 14 to rotate the rotating drum 15 and the fan 32. Two pulleys 34a and 34b are attached to the output shaft of the motor 33. A drum belt 35, which rotates the rotating drum 15, is stretched across one pulley 34a, and a fan belt 36, which rotates the fan 32, is stretched across the other pulley 34b. A drum support 37, a metal plate member facing the inside of the rotating drum 15, is provided at the front end of the rotating drum 15, and the front end of the rotating drum 15 is rotatably supported by this drum support 37. The rear end of the rotating drum 15 is rotatably supported by a support plate 38. A support shaft 41 is inserted through the rear center of the rotating drum 15 and is rotatably supported. Lifters 39a and 39b are provided on the inner wall of the rotating drum 15 to lift the clothes upward when the rotating drum 15 rotates. The lifters 39a and 39b are provided at two locations on the inner wall of the rotating drum 15 that are opposite each other in the diametrical direction, with one lifter 39a located at the front of the rotating drum 15 and the other lifter 39b located at the rear of the rotating drum 15. The drying operation of the clothes dryer 13 involves driving the motor 33 to rotate the fan 32 and the rotating drum 15, and igniting the burner 21. The rotation of the fan 32 draws outside air into the main body 14 through an air intake 40 lo