WO2021121100A1 - Drying machine - Google Patents

Drying machine Download PDF

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Publication number
WO2021121100A1
WO2021121100A1 PCT/CN2020/134951 CN2020134951W WO2021121100A1 WO 2021121100 A1 WO2021121100 A1 WO 2021121100A1 CN 2020134951 W CN2020134951 W CN 2020134951W WO 2021121100 A1 WO2021121100 A1 WO 2021121100A1
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WO
WIPO (PCT)
Prior art keywords
drum
foreign matter
air duct
duct hole
detection unit
Prior art date
Application number
PCT/CN2020/134951
Other languages
French (fr)
Chinese (zh)
Inventor
藤原正宏
Original Assignee
青岛海尔洗衣机有限公司
Aqua株式会社
海尔智家股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 青岛海尔洗衣机有限公司, Aqua株式会社, 海尔智家股份有限公司 filed Critical 青岛海尔洗衣机有限公司
Priority to CN202080087582.5A priority Critical patent/CN114846195B/en
Publication of WO2021121100A1 publication Critical patent/WO2021121100A1/en

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 

Definitions

  • the present invention relates to a dryer provided with a drum having an inner peripheral surface formed with a plurality of vent holes.
  • the dryer of Patent Document 1 has a drying chamber formed inside a box, and a drum supported by a main shaft cantilever is arranged inside the drying chamber.
  • the drum is provided with a large opening on its front end surface as a clothing input port, and the laundry to be dried is put into the drum through the clothing input port.
  • a plurality of vent holes are formed on the peripheral surface of the drum.
  • An air outlet is arranged on the upper surface of the rear part of the drying chamber, and a discharge outlet is arranged on the lower surface of the front part of the drying chamber. Therefore, heated air is supplied from the blower outlet to the drying chamber, and after the heated air passes through the inside of the rotating drum in the drying chamber, it is discharged from the outlet to the outside of the machine.
  • Patent Document 1 Japanese Patent Application Publication No. 2008-200276
  • an object of the present invention is to provide a dryer that can prevent the drum from rotating in a state in which foreign objects protrude outward from the ventilation holes of the drum, and damage to the drying chamber or the drum due to the foreign objects.
  • the dryer of the present invention is characterized by comprising: a drying chamber arranged in the box; a drum arranged in the drying chamber, having an inner peripheral surface formed with a plurality of vent holes;
  • the heating air is fed into the drying chamber;
  • the exhaust path is connected with the air duct hole formed in the lower part of the drying chamber for exhausting the air in the drying chamber;
  • the foreign matter detection unit can detect from A foreign object protruding from the ventilation hole of the drum to the outside; and a control unit that controls a motor for rotating and driving the drum, and when the foreign object is detected by the foreign object detection unit, the control unit controls The motor stops the rotation of the drum.
  • the foreign matter detection unit can detect the foreign matter protruding into the air duct hole.
  • the foreign object detection unit controls the motor so that the drum alternately repeats rotation in a predetermined direction and rotation in the opposite direction, and the foreign object detection unit can The foreign matter is detected at a downstream side in the predetermined direction from the center of the air duct hole and at a downstream side in the opposite predetermined direction from the center of the air duct hole.
  • the foreign object detection unit includes a metal wire and a movement detection part that detects the movement of the metal wire
  • the metal wire has: a first part that is higher than the air duct
  • the central part of the hole is straightened along the rotation axis of the drum on the downstream side in the prescribed direction; and the second part is straightened along the downstream side in the counter-prescribed direction than the central part of the air duct hole
  • the rotation axis of the drum is straightened.
  • the dryer of the present invention if a foreign matter protruding from the vent of the drum to the outside is detected, the rotation of the drum is stopped. Therefore, it is possible to prevent the drum from rotating in a state where the foreign matter protrudes and the foreign matter causes the end of the air duct hole. The wall or the drum is damaged.
  • the foreign matter protruding from the air vent of the drum in the air duct hole is detected. Therefore, when the drum continues to rotate while the foreign matter is protruding, the end of the air duct hole can be detected. Foreign objects colliding with the wall.
  • the dryer of the present invention when the drum rotates in a predetermined direction, it is possible to detect foreign matter on the downstream side of the air duct hole in a predetermined direction, and when the drum rotates in the opposite direction, it is possible to detect foreign matter in a predetermined direction.
  • the center of the duct hole detects foreign matter on the downstream side in the opposite direction. Therefore, even when the drum rotates in either direction with the foreign matter protruding, the foreign matter near the end wall of the duct hole can be detected. Therefore, when the foreign object is not detected by the foreign object detection unit, it can be suppressed that the foreign object collides with the end wall portion of the air duct hole.
  • the dryer of the present invention it is possible to detect the movement of the wire that is straightened toward the ends of the air duct hole through a movement detection part, and therefore it is straightened to the ends of the air duct hole respectively. Compared with the case where all the wires are equipped with the movement detection part, the manufacturing cost can be reduced.
  • Fig. 1 is a front longitudinal sectional view of a dryer 1 according to an embodiment of the present invention.
  • Fig. 2 is a side longitudinal sectional view of the dryer 1 in Fig. 1 taken along the line a-a.
  • FIG. 3 is a diagram illustrating the structure of the foreign object detection unit 50.
  • Fig. 4(a) is a state in which foreign objects protruding from the vent hole 4a of the drum 4 are caught on the wire 51
  • Fig. 4(b) is a foreign object protruding from the vent hole 4a of the drum 4 to the outside to pull the wire 51 status.
  • Fig. 5 is a control block diagram of the dryer 1 of the present embodiment.
  • FIG. 6 is a diagram illustrating the structure of the foreign object detection unit 150.
  • FIG. 7 is a diagram illustrating the structure of the foreign object detection unit 250.
  • FIG. 8 is a diagram illustrating a modification example of the foreign object detection unit 50.
  • Fig. 1 is a front longitudinal cross-sectional view of a dryer 1 according to an embodiment of the present invention
  • Fig. 2 is a side longitudinal cross-sectional view of the dryer 1 in Fig. 1 along a line aa.
  • the dryer 1 of the present embodiment is a tumble dryer, and has a box 2 having a substantially rectangular parallelepiped box shape.
  • a substantially cylindrical drying chamber 3 having a substantially cylindrical inner peripheral surface is arranged inside the box 2, and inside the drying chamber 3, there is a substantially cylindrical inner periphery for accommodating laundry.
  • the roller 4 on the surface is pivotally supported by a main shaft 5 extending in the front-rear direction.
  • the drum 4 is provided with a laundry input port 6 on its front end surface, and the laundry to be dried is put into the drum 4 through the laundry input port 6 in a state where the door 2a of the cabinet 2 is opened.
  • a plurality of vent holes 4a are formed on the peripheral surface of the drum 4.
  • the main shaft 5 is rotatably supported by a bearing 5a attached to the back wall of the drying chamber 3, and a pulley 10 is attached to the front end of the main shaft 5 protruding rearward.
  • the rotational driving force of the drum motor 11 as a driving source provided at the back of the drying chamber 3 is transmitted to the pulley 10 via the motor pulley 12 and the timing belt 16, whereby the drum 4 is rotationally driven with the main shaft 5 as the center.
  • An air outlet 31 is provided on the upper surface of the rear part of the drying chamber 3, and an air suction passage 32 is provided on the upper part of the drying chamber 3 with an air suction port 32a opened to the rear as an inlet.
  • a heating source 33 for heating the air taken in from the intake port 32a is provided inside the intake passage 32.
  • the heating source 33 is usually a steam radiator through which high-temperature steam circulates, but the heating method is not limited to this.
  • An electric heater, a gas heater using city gas or LP gas may also be used. Wait.
  • An air duct hole 34 is arranged on the lower surface of the front part of the drying chamber 3 at a position away from the blower outlet 31 in the front-rear direction of the drum 4, and an air duct hole 34 is formed in the lower part of the drying chamber 3 to communicate with the air duct hole 34 and open to the rear.
  • the exhaust port 35a serves as an exhaust path 35 of the outlet.
  • the exhaust passage 35 is provided with a lint filter 36 for collecting suspended matter such as lint from the clothes, and a fan 37 that is rotationally driven by a fan motor 37a.
  • the fan 37 is a device (for example, a sirocco fan) that is arranged to suck in air from the front and discharge the air to the side (over the entire circumference) when being rotated and driven.
  • FIG. 3 is a diagram illustrating the structure of the foreign object detection unit 50.
  • the foreign object detection unit 50 has: a wire 51; a fixing portion 52 to which one end of the wire 51 is attached; a first rotating roller 53, a second rotating roller 54 and a third rotating roller 55 around which the metal wire 51 is wound on the outer peripheral surface; and A wire switch 56 at the other end of the wire 51 is installed.
  • the fixing portion 52 is arranged on the right side of the front side end of the air duct hole 34.
  • the first rotating roller 53 is arranged on the right side of the back side end of the air duct hole 34
  • the second rotating roller 54 is arranged on the left side of the back side end of the air duct hole 34
  • the third rotating roller 55 is arranged on the air duct hole.
  • 34 is the left side of the front side end.
  • the wire switch 56 is arranged on the left side of the third rotating roller 55.
  • the wire 51 After the wire 51 is attached to the fixing portion 52 at its one end, it is straightened from the front side to the back side in the vicinity of the wall of the right end of the air duct hole 34. After that, the wire 51 is straightened toward the second rotating roller 54 on the back side of the air duct hole 34 after passing around the outer peripheral surface of the first rotating roller 53. The wire 51 that has passed around the outer peripheral surface of the second rotating roller 54 is straightened from the back side to the front side near the wall of the left end of the air duct hole 34. After that, after the wire 51 has passed around the outer peripheral surface of the third rotating roller 55, the other end of the wire 51 is connected to the wire switch 56.
  • the wire 51 has a first portion 51a that is straightened along the rotation axis of the drum 4 on the downstream side in the clockwise rotation direction than the central portion of the air duct hole 34 located below the rotation axis of the drum 4; and a second portion 51b is straightened along the rotation axis of the drum 4 on the downstream side in the counterclockwise rotation direction than the central portion of the air duct hole 34. That is, the wire 51 has a first portion 51a arranged on the left side of the air passage hole 34 than the central part (the center portion in the rotation direction of the drum 4) and a second portion 51a arranged on the right side of the air passage hole 34. Part 51b.
  • the first portion 51a of the wire 51 that is straightened from the back side to the front side near the wall of the left end of the air duct hole 34 is arranged to deviate inward from the wall of the left end of the air duct hole 34.
  • the second part 51b of the wire 51 that is straightened from the front side to the back side is arranged from the wall of the right end of the air duct hole 34 Deviation to the inside.
  • the wire switch 56 of the foreign object detection unit 50 is in an off state when no force is applied to the wire 51, that is, when foreign objects protruding to the outside from the vent hole 4a of the drum 4 are not caught on the wire 51, In contrast, when a foreign object catches the wire 51 and the other end of the wire 51 is pulled, it is switched to the ON state. Therefore, when a force is applied to the wire 51 and the movement of the wire 51 is detected, the wire switch 56 is switched to the ON state.
  • FIG. 4(a) shows a state in which a foreign object protruding outward from the vent hole 4a of the drum 4 is caught on the wire 51
  • Fig. 4(b) shows a foreign object protruding outward from the vent hole 4a of the drum 4 pulls the wire 51 status.
  • the figure shows the foreign matter protruding from the vent hole 4a of the drum 4 to the outside, and the illustration of the drum 4 is omitted.
  • the foreign matter detection unit 50 can detect the foreign matter protruding into the air duct hole 34 on the left side (clockwise rotation downstream side, downstream side in the predetermined direction) than the center portion of the air duct hole 34, and can detect the foreign matter in the air duct hole 34.
  • the foreign matter detector 50 can use the first part 51a of the wire 51 to place the foreign matter on the left side of the air duct hole 34.
  • the foreign matter detection unit 50 can use the first part of the wire 51 In the second part 51b, the foreign matter is detected before the foreign matter collides with the wall of the right end of the air duct hole 34.
  • the foreign object detection unit 50 can use the second part of the wire 51 Part 51b detects foreign matter, and when the drum 4 rotates counterclockwise with the foreign matter protruding outward from the vent hole 4a of the drum 4, the foreign matter detector 50 can detect the foreign matter using the first section 51a of the wire 51.
  • Fig. 5 is a control block diagram of the dryer 1 of the present embodiment.
  • the control unit 60 of the dryer 1 is composed of, for example, a microcomputer, etc., and includes a CPU, a ROM storing a program for controlling the operation of the dryer 1, and temporarily storing data used to execute the program. RAM.
  • the operation of the dryer 1 is controlled by the control unit 60.
  • the wire switch 56 and the motor 11 are connected to the control unit 60.
  • control unit 60 controls the motor 11 so that the drum 4 alternately repeats counterclockwise rotation and clockwise rotation.
  • control unit 60 controls the motor 11 to stop the rotation of the drum 4.
  • the dryer 1 of this embodiment includes: a drying chamber 3, which is arranged in the box body 2, a drum 4, which is arranged in the drying chamber 3, and has an inner peripheral surface formed with a plurality of vent holes 4a; and an air suction path 32 , Used to send heated air to the drying chamber 3; the exhaust path 35, connected with the air duct hole 34 formed in the lower part of the drying chamber 3, used to exhaust the air in the drying chamber 3; as a foreign matter detection unit
  • the detection unit 50 can detect foreign objects protruding from the vent 4a of the drum 4 to the outside; and the control unit 60 as a control unit controls the motor 11 that drives the drum 4 to rotate. When the foreign object detection unit 50 detects foreign objects Next, the control unit 60 controls the motor 11 to stop the rotation of the drum 4.
  • the dryer 1 of the present embodiment if a foreign object protruding from the air hole 4a of the drum 4 is detected, the rotation of the drum 4 is stopped. Therefore, it is possible to prevent the drum 4 from rotating and causing the foreign object to protrude. This foreign matter causes the end wall of the air duct hole 34 or the drum 4 to be damaged.
  • the foreign matter detection unit 50 as a foreign matter detection unit can detect foreign matter protruding into the air duct hole 34.
  • the foreign matter protruding from the air hole 4a of the drum 4 to the outside in the air duct hole 34 is detected. Therefore, when the drum 4 continues to rotate with the foreign matter protruding, Foreign objects that collide with the end wall of the air duct hole 34 can be detected.
  • control unit 60 as the control unit controls the motor 11 to alternately repeat the counterclockwise rotation and clockwise rotation of the drum 4, and the foreign object detection unit 50 as the foreign object detection unit can detect more than Foreign matter on the right side of the center of the air duct hole 34 and on the left side of the center of the air duct hole 34.
  • the foreign object detection unit 50 as a foreign object detection unit includes a wire 51 and a wire switch 56 as a movement detection unit that detects the movement of the wire 51.
  • the wire 51 has: a first part 51a, which is straightened along the axis of rotation of the drum 4 at the downstream side of the center portion of the air duct hole 34 in a clockwise direction; and the second portion 51b, at the downstream side of the center portion of the air duct hole 34, which is rotated counterclockwise It is straightened along the axis of rotation of the drum 4.
  • the dryer 1 of the present embodiment it is possible to detect the movement of the wires 51 that are respectively straightened toward the both ends of the air duct hole 34 through a wire switch 56. Compared with the case where the wire switch 56 is arranged on the wire 51 whose both ends of the passage hole 34 are straightened, the manufacturing cost can be reduced.
  • the foreign matter detecting unit 50 having the wire 51 and the wire switch 56 detects the foreign matter protruding from the vent hole 4a of the drum 4 to the outside, but detects the foreign matter protruding from the vent hole 4a of the drum 4 to the outside.
  • the structure of the foreign object detection unit is arbitrary.
  • the foreign object detection unit of the present invention may be a foreign object detection unit 150 using a photosensor.
  • the foreign object detection unit 150 has two light-emitting parts 151 and two light-receiving parts 152.
  • One light emitting part 151 is arranged on the left side of the front side end of the air duct hole 34, and one light receiving part 152 is arranged on the left side of the back side end of the air duct hole 34.
  • the light emitting unit 151 outputs light to the light receiving unit 152 on the left side (downstream side in the clockwise rotation direction) of the center portion of the air duct hole 34.
  • the light output from the light-emitting portion 151 passes through a portion near the left end of the air duct hole 34 that is deviated inward from the wall of the left end of the air duct hole 34.
  • the light-emitting part 151 and the light-receiving part 152 arranged near the left end of the air duct hole 34 form a photosensor.
  • the other light-emitting part 151 is arranged on the right side of the front-side end of the air duct hole 34, and the other light-receiving part 152 is arranged on the right side of the back-side end of the air duct hole 34.
  • the light-emitting part 151 outputs light to the light-receiving part 152 on the right side (downstream side in the counterclockwise rotation direction) of the center part of the air duct hole 34.
  • the light output from the light-emitting portion 151 passes through a portion near the right end of the air duct hole 34 that is deviated inward from the wall of the right end of the air duct hole 34.
  • the light-emitting part 151 and the light-receiving part 152 arranged near the right end of the air duct hole 34 form a photosensor.
  • the foreign object detection unit 150 is in an off state when the light output from the light-emitting unit 151 is received by the light-receiving unit 152. In contrast, the foreign object detection unit 150 blocks the light output from the light-emitting unit 151 and is not received by the light-receiving unit 152. In the case of the connected state. Therefore, when it is detected that the foreign matter protruding to the outside from the vent hole 4a of the drum 4 passes between the light-emitting part 151 and the light-receiving part 152, the foreign matter detection part 150 is switched to the ON state.
  • the foreign matter detection unit 150 can detect the foreign matter protruding into the air duct hole 34 on the left side (clockwise rotation downstream side, downstream side in the predetermined direction) than the center part of the air duct hole 34, and can detect the foreign matter in the air duct hole 34.
  • the foreign object detection unit of the present invention may also be a foreign object detection unit 250 having two limit switches 251.
  • a limit switch 251 is arranged at the left end of the air duct hole 34.
  • the limit switch 251 has a first member 252 attached to the outer peripheral surface of the drying chamber 3 and a second member 253 movably arranged on the first member 252.
  • the second member 253 can obtain the protruding position that protrudes from the first member 252 toward the center of the air duct hole 34 as shown in FIG. 7(b) and the protruding position that does not protrude from the first member 252 as shown in FIG. 7(c) Internal location.
  • the second member 253 is pressed by the spring member 254 toward the protruding position.
  • the second member 253 resists the elastic force of the spring member 254 and moves from the protruding position to the inner position.
  • the moving member 255 attached to the second member 253 moves together with the second member 253, and the front end of the moving member 255 abuts the detection member 256.
  • the limit switch 251 of the foreign object detection unit 250 is in the off state when the second member 253 is at the protruding position, and on the other hand, is in the on state when the second member 253 is moved to the inner position. Therefore, the second member 253 is pressed against the first member 252 by the foreign matter protruding from the vent hole 4a of the drum 4 to the outside, and when it is detected that the second member 253 has moved to the inner position, the foreign matter detector 250 is switched to Pass state.
  • the other limit switch 251 is arranged at the right end of the air duct hole 34 and can detect foreign matter protruding into the air duct hole 34 on the downstream side of the center portion of the air duct hole 34 in the counterclockwise rotation direction.
  • the limit switch 251 arranged at the right end of the air duct hole 34 is the same as the limit switch 251 arranged at the left end of the air duct hole 34.
  • the foreign matter detection unit 250 can detect the foreign matter protruding into the air duct hole 34 on the left side (clockwise rotation downstream side, downstream side in the predetermined direction) than the center part of the air duct hole 34, and can detect the foreign matter in the air duct hole 34.
  • the foreign matter detection unit 50 can detect the foreign matter protruding into the air duct hole 34 on the left side than the central part of the air duct hole 34, and can detect the foreign matter protruding into the air duct hole 34 on the left side than the central part of the air duct hole 34.
  • the foreign matter protruding into the air duct hole 34 on the right side but not limited to this.
  • the foreign object detection unit 50 may only detect foreign objects protruding into the air duct hole 34 on the left side of the center portion of the air duct hole 34. In (a) of FIG.
  • a fixing portion 54 a is used instead of the second rotating roller 54.
  • the foreign object detection unit 50 may only detect foreign objects protruding into the air duct hole 34 on the right side of the center portion of the air duct hole 34.
  • the other end of the wire 51 is connected to the wire switch 56.
  • the foreign object detection units 50, 150, and 250 detect near the wall of the left end of the air duct hole 34 and near the wall of the right end of the air duct hole 34 toward the air duct hole 34.
  • the foreign matter protruding into the inside but the detection position for detecting the foreign matter protruding into the air duct hole 34 is not limited to this.
  • the wires 51 that are drawn straight to the two ends of the air duct hole 34 are formed as one body, and a wire switch 56 is used to detect the movement of the wire 51, but it can also be combined with the metal wire.
  • the different metal wires corresponding to the first part 51a and the second part 51b of the wire 51 are respectively straightened toward the two ends of the air duct hole 34, and the metal wire switches 56 are respectively arranged for the different metal wires.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

A drying machine provided with: a drying chamber (3) arranged within a box body (2); a drum (4) arranged in the drying chamber (3) and provided with an inner peripheral face in which a plurality of vent holes (4a) are provided; an air suction path (32) for feeding heated air into the drying chamber (3); an air exhaust path (35) which is in communication with an air duct hole (34) provided in the lower part of the drying chamber (3) and used for discharging air in the drying chamber (3); a foreign matter detection unit (50, 150, 250) capable of detecting foreign matter protruding outward from the vent holes (4a) of the drum (4); and a control unit (60) which controls a motor (11) that rotationally drives the drum (4), and controls the motor (11) so as to stop rotation of the drum (4) when foreign matter is detected by the foreign matter detection unit (50, 150, 250). The drum (4) can be prevented from rotating in the state where foreign matter protrudes outwards from the vent holes (4a) of the drum (4), such that the end wall part of the air duct hole (34) or the drum (4) can be prevented from being damaged by the foreign matter.

Description

烘干机Dryer 技术领域Technical field
本发明涉及一种具备滚筒的烘干机，该滚筒具有形成有多个通气孔的内周面。The present invention relates to a dryer provided with a drum having an inner peripheral surface formed with a plurality of vent holes.
背景技术Background technique
专利文献1的烘干机具有形成于箱体的内部的烘干室，在该烘干室内部配置有由主轴悬臂支承的滚筒。滚筒在其前端面设有大的开口来作为衣物投入口，作为烘干对象的衣物通过衣物投入口被投入滚筒内。在滚筒的周面形成有多个通气孔。The dryer of Patent Document 1 has a drying chamber formed inside a box, and a drum supported by a main shaft cantilever is arranged inside the drying chamber. The drum is provided with a large opening on its front end surface as a clothing input port, and the laundry to be dried is put into the drum through the clothing input port. A plurality of vent holes are formed on the peripheral surface of the drum.
在烘干室的后部上表面配置有吹出口，在烘干室的前部下表面配置有吐出口。因此，从吹出口向烘干室供给加热空气，该加热空气在烘干室内经过被旋转驱动的滚筒内部后，从吐出口向机外排出。An air outlet is arranged on the upper surface of the rear part of the drying chamber, and a discharge outlet is arranged on the lower surface of the front part of the drying chamber. Therefore, heated air is supplied from the blower outlet to the drying chamber, and after the heated air passes through the inside of the rotating drum in the drying chamber, it is discharged from the outlet to the outside of the machine.
有通过衣物投入口被投入滚筒内的作为烘干对象的衣物中有可能会混入钉子、金属零件等异物。在该情况下，若滚筒在钉子、金属零件等异物从滚筒的通气孔向外侧突出的状态下旋转，则该异物会与形成于烘干室的下表面的吐出口端部的壁部碰撞，吐出口端部的壁部会破损。此外，从滚筒的通气孔向外侧突出的异物与吐出口的端部的壁部碰撞时，由于该碰撞，滚筒的通气孔的内周部有可能会以向滚筒的内侧突出的方式变形。在该情况下，滚筒内的衣物会因向异物的内侧突出的部分而损伤。There is a possibility that foreign matter such as nails and metal parts may be mixed into the clothes to be dried, which are put into the drum through the clothes inlet. In this case, if the drum rotates in a state where foreign objects such as nails and metal parts protrude outward from the vent of the drum, the foreign objects will collide with the wall at the end of the discharge port formed on the lower surface of the drying chamber. The wall at the end of the discharge port may be damaged. In addition, when foreign matter protruding outward from the vent hole of the drum collides with the wall of the end of the discharge port, the inner peripheral portion of the vent hole of the drum may be deformed so as to protrude toward the inside of the drum due to the collision. In this case, the laundry in the drum may be damaged by the part protruding to the inside of the foreign matter.
现有技术文献Prior art literature
专利文献Patent literature
专利文献1：日本特开2008－200276号公报Patent Document 1: Japanese Patent Application Publication No. 2008-200276
发明内容Summary of the invention
发明所要解决的问题The problem to be solved by the invention
因此，本发明的目的在于提供一种烘干机，其能防止滚筒在异物从滚筒的通风孔向外侧突出的状态下旋转而因该异物导致烘干室或滚筒破损。Therefore, an object of the present invention is to provide a dryer that can prevent the drum from rotating in a state in which foreign objects protrude outward from the ventilation holes of the drum, and damage to the drying chamber or the drum due to the foreign objects.
用于解决问题的方案Solutions used to solve the problem
即，本发明的烘干机的特征在于，具备：烘干室，配置于箱体内；滚筒，配置于所述烘干室内，具有形成有多个通气孔的内周面；吸气路，用于向所述烘干室送入加热空气；排气路，与形成于所述烘干室的下部的风道孔连通，用于排出所述烘干室内的空气；异物检测单元，能检测从所述滚筒的所述通风孔向外侧突出的异物；以及控制单元，控制对所述滚筒进行旋转驱动的马达，在由所述异物检测单元检测到所述异物的情况下，所述控制单元控制所述马达以停止所述滚筒的旋转。That is, the dryer of the present invention is characterized by comprising: a drying chamber arranged in the box; a drum arranged in the drying chamber, having an inner peripheral surface formed with a plurality of vent holes; The heating air is fed into the drying chamber; the exhaust path is connected with the air duct hole formed in the lower part of the drying chamber for exhausting the air in the drying chamber; the foreign matter detection unit can detect from A foreign object protruding from the ventilation hole of the drum to the outside; and a control unit that controls a motor for rotating and driving the drum, and when the foreign object is detected by the foreign object detection unit, the control unit controls The motor stops the rotation of the drum.
在本发明的烘干机中，优选的是，所述异物检测单元能检测向所述风道孔内突出的所述异物。In the dryer of the present invention, it is preferable that the foreign matter detection unit can detect the foreign matter protruding into the air duct hole.
在本发明的烘干机中，优选的是，所述异物检测单元控制所述马达以使所述滚筒交替地反复进行规定方向的旋转和反规定方向的旋转，并且所述异物检测单元能在比所述风道孔的中央部靠所述规定方向下游侧处和比所述风道孔的中央部靠所述反规定方向下游侧处检测所述异物。In the dryer of the present invention, it is preferable that the foreign object detection unit controls the motor so that the drum alternately repeats rotation in a predetermined direction and rotation in the opposite direction, and the foreign object detection unit can The foreign matter is detected at a downstream side in the predetermined direction from the center of the air duct hole and at a downstream side in the opposite predetermined direction from the center of the air duct hole.
在本发明的烘干机中，优选的是，所述异物检测单元包括金属丝和检测所述金属丝发生了移动的移动检测部，所述金属丝具有：第一部分，在比所述风道孔的中央部靠所述规定方向下游侧处沿着所述滚筒的旋转轴被拉直；以及第二部分，在比所述风道孔的中央部靠所述反规定方向下游侧处沿着所述滚筒的旋转轴被拉直。In the dryer of the present invention, it is preferable that the foreign object detection unit includes a metal wire and a movement detection part that detects the movement of the metal wire, and the metal wire has: a first part that is higher than the air duct The central part of the hole is straightened along the rotation axis of the drum on the downstream side in the prescribed direction; and the second part is straightened along the downstream side in the counter-prescribed direction than the central part of the air duct hole The rotation axis of the drum is straightened.
发明效果Invention effect
在本发明的烘干机中，若检测到从滚筒的通风孔向外侧突出的异物，则滚筒的旋转停止，因此能防止滚筒在异物突出的状态下旋转而因该异物导致风道孔的端部壁部或滚筒破损。In the dryer of the present invention, if a foreign matter protruding from the vent of the drum to the outside is detected, the rotation of the drum is stopped. Therefore, it is possible to prevent the drum from rotating in a state where the foreign matter protrudes and the foreign matter causes the end of the air duct hole. The wall or the drum is damaged.
在本发明的烘干机中，检测在风道孔内从滚筒的通气孔向外侧突出的异物，因此在滚筒于异物突出的状态下继续旋转的情况下，能检测到与风道孔的端部 壁部碰撞的异物。In the dryer of the present invention, the foreign matter protruding from the air vent of the drum in the air duct hole is detected. Therefore, when the drum continues to rotate while the foreign matter is protruding, the end of the air duct hole can be detected. Foreign objects colliding with the wall.
在本发明的烘干机中，能在滚筒向规定方向旋转的情况下在比风道孔的中央部靠规定方向下游侧处检测异物，能在滚筒向反规定方向旋转的情况下在比风道孔的中央部靠反规定方向下游侧处检测异物，因此即使在滚筒于异物突出的状态下向任一方向旋转的情况下，也能检测风道孔的端部壁部附近的异物。因此，能抑制在异物未被异物检测单元检测到的情况下该异物与风道孔的端部壁部碰撞的情况。In the dryer of the present invention, when the drum rotates in a predetermined direction, it is possible to detect foreign matter on the downstream side of the air duct hole in a predetermined direction, and when the drum rotates in the opposite direction, it is possible to detect foreign matter in a predetermined direction. The center of the duct hole detects foreign matter on the downstream side in the opposite direction. Therefore, even when the drum rotates in either direction with the foreign matter protruding, the foreign matter near the end wall of the duct hole can be detected. Therefore, when the foreign object is not detected by the foreign object detection unit, it can be suppressed that the foreign object collides with the end wall portion of the air duct hole.
在本发明的烘干机中，能通过一个移动检测部来检测分别向风道孔的两端部被拉直的金属丝发生了移动，因此与分别向风道孔的两端部被拉直的金属丝都配置移动检测部的情况相比，能降低制造成本。In the dryer of the present invention, it is possible to detect the movement of the wire that is straightened toward the ends of the air duct hole through a movement detection part, and therefore it is straightened to the ends of the air duct hole respectively. Compared with the case where all the wires are equipped with the movement detection part, the manufacturing cost can be reduced.
附图说明Description of the drawings
图1是本发明的实施方式的烘干机1的主视纵剖图。Fig. 1 is a front longitudinal sectional view of a dryer 1 according to an embodiment of the present invention.
图2是图1的烘干机1的a-a线处的侧视纵剖图。Fig. 2 is a side longitudinal sectional view of the dryer 1 in Fig. 1 taken along the line a-a.
图3是对异物检测部50的结构进行说明的图。FIG. 3 is a diagram illustrating the structure of the foreign object detection unit 50.
图4的(a)是从滚筒4的通气孔4a向外侧突出的异物挂住金属丝51的状态，图4的(b)是从滚筒4的通气孔4a向外侧突出的异物拉扯金属丝51的状态。Fig. 4(a) is a state in which foreign objects protruding from the vent hole 4a of the drum 4 are caught on the wire 51, and Fig. 4(b) is a foreign object protruding from the vent hole 4a of the drum 4 to the outside to pull the wire 51 status.
图5是本实施方式的烘干机1的控制框图。Fig. 5 is a control block diagram of the dryer 1 of the present embodiment.
图6是对异物检测部150的结构进行说明的图。FIG. 6 is a diagram illustrating the structure of the foreign object detection unit 150.
图7是对异物检测部250的结构进行说明的图。FIG. 7 is a diagram illustrating the structure of the foreign object detection unit 250.
图8是对异物检测部50的变形例进行说明的图。FIG. 8 is a diagram illustrating a modification example of the foreign object detection unit 50.
附图标记说明Description of Reference Signs
1：烘干机；2：箱体；3：烘干室；4：滚筒；4a：通气孔；11：马达；32：吸气路；34：风道孔；35：排气路；50：异物检测部(异物检测单元)；51：金属丝；56：金属丝开关；51a：金属丝的第一部分；51b：金属丝的第二部分； 60：控制部(控制单元)；150：异物检测部(异物检测单元)；250：异物检测部(异物检测单元)。1: Dryer; 2: Cabinet; 3: Drying room; 4: Drum; 4a: Vent; 11: Motor; 32: Suction path; 34: Air duct hole; 35: Exhaust path; 50: Foreign object detection unit (foreign object detection unit); 51: wire; 56: wire switch; 51a: the first part of the wire; 51b: the second part of the wire; 60: control unit (control unit); 150: foreign object detection Section (foreign object detection unit); 250: foreign object detection section (foreign object detection unit).
具体实施方式Detailed ways
以下，参照附图对本发明的实施方式的烘干机1进行说明。图1是本发明的实施方式的烘干机1的主视纵剖图，图2是图1的烘干机1的a－a线处的侧视纵剖图。Hereinafter, the dryer 1 according to the embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a front longitudinal cross-sectional view of a dryer 1 according to an embodiment of the present invention, and Fig. 2 is a side longitudinal cross-sectional view of the dryer 1 in Fig. 1 along a line aa.
本实施方式的烘干机1是滚筒式干衣机，具有大致长方体箱形状的箱体2。在箱体2的内部配置有具有大致圆筒形状的内周面的大致圆筒形状的烘干室3，在烘干室3的内部，具有用于容纳洗涤物的大致圆筒形状的内周面的滚筒4由沿前后方向延伸的主轴5轴支承。The dryer 1 of the present embodiment is a tumble dryer, and has a box 2 having a substantially rectangular parallelepiped box shape. A substantially cylindrical drying chamber 3 having a substantially cylindrical inner peripheral surface is arranged inside the box 2, and inside the drying chamber 3, there is a substantially cylindrical inner periphery for accommodating laundry. The roller 4 on the surface is pivotally supported by a main shaft 5 extending in the front-rear direction.
滚筒4在其前端面设有衣物投入口6，作为烘干对象的衣物在箱体2的门2a敞开的状态下通过衣物投入口6被投入滚筒4内。此外，在滚筒4的周面形成有多个通气孔4a。The drum 4 is provided with a laundry input port 6 on its front end surface, and the laundry to be dried is put into the drum 4 through the laundry input port 6 in a state where the door 2a of the cabinet 2 is opened. In addition, a plurality of vent holes 4a are formed on the peripheral surface of the drum 4.
主轴5由装接于烘干室3的背面壁的轴承5a旋转自如地支承，而且在向后方突出的主轴5的前端安装有带轮10。设置于烘干室3的背后的作为驱动源的滚筒马达11的旋转驱动力经由马达带轮12、同步带16传递给带轮10，由此，滚筒4以主轴5为中心被旋转驱动。The main shaft 5 is rotatably supported by a bearing 5a attached to the back wall of the drying chamber 3, and a pulley 10 is attached to the front end of the main shaft 5 protruding rearward. The rotational driving force of the drum motor 11 as a driving source provided at the back of the drying chamber 3 is transmitted to the pulley 10 via the motor pulley 12 and the timing belt 16, whereby the drum 4 is rotationally driven with the main shaft 5 as the center.
在烘干室3的后部上表面设有吹出口31，在烘干室3的上部配设有将向后方敞开的吸气口32a作为入口的吸气路32。在该吸气路32的内部设置有用于对从吸气口32a摄入的空气进行加热的加热源33。在商业用途的干衣机的情况下，加热源33通常是供高温的蒸汽流通的蒸汽散热器，但加热方式不限于此，也可以利用电加热器、使用城市煤气或LP气体的气体加热器等。An air outlet 31 is provided on the upper surface of the rear part of the drying chamber 3, and an air suction passage 32 is provided on the upper part of the drying chamber 3 with an air suction port 32a opened to the rear as an inlet. A heating source 33 for heating the air taken in from the intake port 32a is provided inside the intake passage 32. In the case of a commercial clothes dryer, the heating source 33 is usually a steam radiator through which high-temperature steam circulates, but the heating method is not limited to this. An electric heater, a gas heater using city gas or LP gas may also be used. Wait.
在滚筒4的前后方向上远离吹出口31的位置的烘干室3的前部下表面配置有风道孔34，在烘干室3的下部形成有与风道孔34连通且将向后方敞开的排气口35a设为出口的排气路35。在排气路35内设置有用于捕集出自衣物的线头等悬浮物的棉绒过滤器36和由风扇马达37a旋转驱动的风扇37。风扇37是配置为在被旋转驱动时从前方吸入空气并向侧方(整周)排出空气的装置(例如多 叶片风扇)。An air duct hole 34 is arranged on the lower surface of the front part of the drying chamber 3 at a position away from the blower outlet 31 in the front-rear direction of the drum 4, and an air duct hole 34 is formed in the lower part of the drying chamber 3 to communicate with the air duct hole 34 and open to the rear. The exhaust port 35a serves as an exhaust path 35 of the outlet. The exhaust passage 35 is provided with a lint filter 36 for collecting suspended matter such as lint from the clothes, and a fan 37 that is rotationally driven by a fan motor 37a. The fan 37 is a device (for example, a sirocco fan) that is arranged to suck in air from the front and discharge the air to the side (over the entire circumference) when being rotated and driven.
因此，当风扇37由风扇马达37a旋转驱动时，从吸气口32a向吸气路32内抽吸外部空气，形成通过吹出口31、烘干室3、风道孔34、排气路35从排气口35a向机外排出的空气流。此时，若加热源33工作着，则从吹出口31向烘干室3内供给的空气会变成高温的加热空气。Therefore, when the fan 37 is rotationally driven by the fan motor 37a, the outside air is sucked from the suction port 32a into the suction path 32, and the air is formed through the blowing port 31, the drying chamber 3, the air duct hole 34, and the exhaust path 35. The air flow discharged from the exhaust port 35a to the outside of the machine. At this time, if the heating source 33 is operating, the air supplied from the blower outlet 31 into the drying chamber 3 will become high-temperature heated air.
如上所述，在箱体2内于烘干室3的下部形成有大致矩形的风道孔34。在烘干室3的外周面配置有能检测从滚筒4的通气孔4a向外侧突出的异物的异物检测部50。图3是对异物检测部50的结构进行说明的图。As described above, a substantially rectangular air duct hole 34 is formed in the lower part of the drying chamber 3 in the box 2. A foreign matter detection unit 50 capable of detecting foreign matter protruding from the air vent 4a of the drum 4 to the outside is arranged on the outer peripheral surface of the drying chamber 3. FIG. 3 is a diagram illustrating the structure of the foreign object detection unit 50.
异物检测部50具有：金属丝51；安装有金属丝51的一端部的固定部52；外周面绕有金属丝51的第一旋转辊53、第二旋转辊54和第三旋转辊55；以及安装有金属丝51的另一端部的金属丝开关56。The foreign object detection unit 50 has: a wire 51; a fixing portion 52 to which one end of the wire 51 is attached; a first rotating roller 53, a second rotating roller 54 and a third rotating roller 55 around which the metal wire 51 is wound on the outer peripheral surface; and A wire switch 56 at the other end of the wire 51 is installed.
固定部52配置于风道孔34的正面侧端部的右侧。第一旋转辊53配置于风道孔34的背面侧端部的右侧，第二旋转辊54配置于风道孔34的背面侧端部的左侧，第三旋转辊55配置于风道孔34的正面侧端部的左侧。金属丝开关56配置于第三旋转辊55的左侧。The fixing portion 52 is arranged on the right side of the front side end of the air duct hole 34. The first rotating roller 53 is arranged on the right side of the back side end of the air duct hole 34, the second rotating roller 54 is arranged on the left side of the back side end of the air duct hole 34, and the third rotating roller 55 is arranged on the air duct hole. 34 is the left side of the front side end. The wire switch 56 is arranged on the left side of the third rotating roller 55.
金属丝51在其一端部安装于固定部52后，在风道孔34的右侧端部的壁部附近被从正面侧向背面侧拉直。之后，金属丝51在绕过第一旋转辊53的外周面后于风道孔34的背面侧被朝着第二旋转辊54拉直。绕过第二旋转辊54的外周面的金属丝51在风道孔34的左侧端部的壁部附近被从背面侧向正面侧拉直。之后，在金属丝51绕过第三旋转辊55的外周面后，金属丝51的另一端部连接于金属丝开关56。After the wire 51 is attached to the fixing portion 52 at its one end, it is straightened from the front side to the back side in the vicinity of the wall of the right end of the air duct hole 34. After that, the wire 51 is straightened toward the second rotating roller 54 on the back side of the air duct hole 34 after passing around the outer peripheral surface of the first rotating roller 53. The wire 51 that has passed around the outer peripheral surface of the second rotating roller 54 is straightened from the back side to the front side near the wall of the left end of the air duct hole 34. After that, after the wire 51 has passed around the outer peripheral surface of the third rotating roller 55, the other end of the wire 51 is connected to the wire switch 56.
金属丝51具有：第一部分51a，在比位于滚筒4的旋转轴的下方的风道孔34的中央部靠顺时针旋转方向下游侧处沿着滚筒4的旋转轴被拉直；以及第二部分51b，在比风道孔34的中央部靠逆时针旋转方向下游侧处沿着滚筒4的旋转轴被拉直。即，金属丝51具有配置于的风道孔34比中央部(滚筒4的旋转方向的中央部)靠左侧的第一部分51a和配置于比风道孔34的中央部靠右侧的第二部分51b。The wire 51 has a first portion 51a that is straightened along the rotation axis of the drum 4 on the downstream side in the clockwise rotation direction than the central portion of the air duct hole 34 located below the rotation axis of the drum 4; and a second portion 51b is straightened along the rotation axis of the drum 4 on the downstream side in the counterclockwise rotation direction than the central portion of the air duct hole 34. That is, the wire 51 has a first portion 51a arranged on the left side of the air passage hole 34 than the central part (the center portion in the rotation direction of the drum 4) and a second portion 51a arranged on the right side of the air passage hole 34. Part 51b.
在风道孔34的左侧端部的壁部附近从背面侧向正面侧被拉直的金属丝51 的第一部分51a配置为从风道孔34的左侧端部的壁部向内侧偏离。同样地，在风道孔34的右侧端部的壁部附近从正面侧向背面侧被拉直的金属丝51的第二部分51b配置为从风道孔34的右侧端部的壁部向内侧偏离。The first portion 51a of the wire 51 that is straightened from the back side to the front side near the wall of the left end of the air duct hole 34 is arranged to deviate inward from the wall of the left end of the air duct hole 34. Similarly, in the vicinity of the wall of the right end of the air duct hole 34, the second part 51b of the wire 51 that is straightened from the front side to the back side is arranged from the wall of the right end of the air duct hole 34 Deviation to the inside.
异物检测部50的金属丝开关56在力未作用于金属丝51的情况下，即，在从滚筒4的通气孔4a向外侧突出的异物未挂住金属丝51的情况下为断开状态，与此相对，在异物挂住金属丝51而金属丝51的另一端部被拉扯的情况下切换为接通状态。因此，当力作用于金属丝51而检测到金属丝51发生了移动时，金属丝开关56切换为接通状态。The wire switch 56 of the foreign object detection unit 50 is in an off state when no force is applied to the wire 51, that is, when foreign objects protruding to the outside from the vent hole 4a of the drum 4 are not caught on the wire 51, In contrast, when a foreign object catches the wire 51 and the other end of the wire 51 is pulled, it is switched to the ON state. Therefore, when a force is applied to the wire 51 and the movement of the wire 51 is detected, the wire switch 56 is switched to the ON state.
图4的(a)表示从滚筒4的通气孔4a向外侧突出的异物挂住金属丝51的状态，图4的(b)表示从滚筒4的通气孔4a向外侧突出的异物拉扯金属丝51的状态。在图4的(a)和图4的(b)中，图示出了从滚筒4的通气孔4a向外侧突出的异物而省略了滚筒4的图示。Fig. 4(a) shows a state in which a foreign object protruding outward from the vent hole 4a of the drum 4 is caught on the wire 51, and Fig. 4(b) shows a foreign object protruding outward from the vent hole 4a of the drum 4 pulls the wire 51 status. In FIG. 4(a) and FIG. 4(b), the figure shows the foreign matter protruding from the vent hole 4a of the drum 4 to the outside, and the illustration of the drum 4 is omitted.
在被投入滚筒4内的作为烘干对象的衣物中混有钉子、金属零件等异物而滚筒4顺时针旋转时，异物会从位于滚筒4的下端部的通气孔4a向外侧突出，在该异物配置于烘干室3的风道孔34内的情况下，当滚筒4进一步顺时针旋转时，该异物会向风道孔34的左侧端部的壁部接近。When foreign objects such as nails and metal parts are mixed in the clothes to be dried in the drum 4 and the drum 4 rotates clockwise, the foreign objects will protrude outward from the vent hole 4a located at the lower end of the drum 4. When it is arranged in the air duct hole 34 of the drying chamber 3, when the drum 4 further rotates clockwise, the foreign matter will approach the wall of the left end of the air duct hole 34.
之后，如图4的(a)所示，从滚筒4的通气孔4a向外侧突出的异物会挂住在风道孔34的左侧端部的壁部附近被拉直的金属丝51的第一部分51a。在该状态下，当滚筒4进一步顺时针旋转时，如图4的(b)所示，金属丝51的第一部分51a会被异物拉扯向风道孔34的左侧端部的壁部。于是，金属丝开关56变为接通状态，检测到异物从滚筒4的通气孔4a向外侧突出的状态。After that, as shown in Fig. 4(a), foreign matter protruding outward from the vent hole 4a of the drum 4 will catch on the first part of the straightened wire 51 near the wall of the left end of the air duct hole 34 Part 51a. In this state, when the drum 4 further rotates clockwise, as shown in FIG. 4( b ), the first portion 51 a of the wire 51 is pulled by the foreign matter toward the wall of the left end of the air duct hole 34. Then, the wire switch 56 is turned on, and a state in which the foreign matter protrudes from the vent hole 4a of the drum 4 to the outside is detected.
同样地，在滚筒4逆时针旋转时，异物从位于滚筒4的下端部的通气孔4a向外侧突出，在该异物配置于烘干室3的风道孔34内的情况下，当滚筒4进一步逆时针旋转时，该异物会向风道孔34的右侧端部的壁部接近。Similarly, when the drum 4 rotates counterclockwise, foreign matter protrudes outward from the vent hole 4a located at the lower end of the drum 4. When the foreign matter is arranged in the air duct hole 34 of the drying chamber 3, when the drum 4 is further When rotating counterclockwise, the foreign matter will approach the wall of the right end of the air duct hole 34.
之后，从滚筒4的通气孔4a向外侧突出的异物会挂住在风道孔34的右侧端部的壁部附近被拉直的金属丝51的第二部分51b。在该状态下，当滚筒4进一步逆时针旋转时，金属丝51的第二部分51b会被异物拉扯向风道孔34的右侧端部的壁部。于是，金属丝开关56变为接通状态，检测到异物从滚筒4的通 气孔4a向外侧突出的状态。After that, foreign matter protruding to the outside from the vent hole 4a of the drum 4 catches on the second portion 51b of the wire 51 that is straightened near the wall of the right end of the air duct hole 34. In this state, when the drum 4 further rotates counterclockwise, the second portion 51b of the wire 51 will be pulled by the foreign matter toward the wall of the right end of the air duct hole 34. Then, the wire switch 56 is turned on, and a state in which the foreign matter protrudes from the vent hole 4a of the drum 4 to the outside is detected.
因此，异物检测部50能检测在比风道孔34的中央部靠左侧(顺时针旋转下游侧、规定方向下游侧)处向风道孔34内突出的异物，并且能检测在比风道孔34的中央部靠右侧(逆时针旋转下游侧、反规定方向下游侧)处向风道孔34内突出的异物。Therefore, the foreign matter detection unit 50 can detect the foreign matter protruding into the air duct hole 34 on the left side (clockwise rotation downstream side, downstream side in the predetermined direction) than the center portion of the air duct hole 34, and can detect the foreign matter in the air duct hole 34. Foreign matter protruding into the air duct hole 34 at the center of the hole 34 on the right side (counterclockwise rotation downstream side, anti-predetermined downstream side).
因此，在滚筒4于异物从滚筒4的通气孔4a向外侧突出的状态下顺时针旋转的情况下，异物检测部50能利用金属丝51的第一部分51a，在异物与风道孔34的左侧端部的壁部碰撞之前检测到异物，并且，在滚筒4于异物从滚筒4的通气孔4a向外侧突出的状态下逆时针旋转的情况下，异物检测部50能利用金属丝51的第二部分51b，在异物与风道孔34的右侧端部的壁部碰撞之前检测到异物。Therefore, when the drum 4 rotates clockwise with the foreign matter protruding from the air hole 4a of the drum 4 to the outside, the foreign matter detector 50 can use the first part 51a of the wire 51 to place the foreign matter on the left side of the air duct hole 34. When the foreign matter is detected before the wall of the side end collides, and the drum 4 is rotated counterclockwise with the foreign matter protruding from the air hole 4a of the drum 4 to the outside, the foreign matter detection unit 50 can use the first part of the wire 51 In the second part 51b, the foreign matter is detected before the foreign matter collides with the wall of the right end of the air duct hole 34.
需要说明的是，虽然省略了详细的说明，但在滚筒4于异物从滚筒4的通气孔4a向外侧突出的状态下顺时针旋转的情况下，异物检测部50能利用金属丝51的第二部分51b来检测异物，并且，在滚筒4于异物从滚筒4的通气孔4a向外侧突出的状态下逆时针旋转的情况下，异物检测部50能利用金属丝51的第一部分51a来检测异物。It should be noted that although detailed description is omitted, when the drum 4 rotates clockwise with the foreign object protruding from the air hole 4a of the drum 4 to the outside, the foreign object detection unit 50 can use the second part of the wire 51 Part 51b detects foreign matter, and when the drum 4 rotates counterclockwise with the foreign matter protruding outward from the vent hole 4a of the drum 4, the foreign matter detector 50 can detect the foreign matter using the first section 51a of the wire 51.
图5是本实施方式的烘干机1的控制框图。如图5所示，烘干机1的控制部60例如由微型计算机等构成，具备CPU、存储有控制烘干机1的动作的程序的ROM、以及临时存储用于执行上述程序时的数据等的RAM。烘干机1的运转动作由该控制部60控制。控制部60连接有金属丝开关56和马达11。Fig. 5 is a control block diagram of the dryer 1 of the present embodiment. As shown in FIG. 5, the control unit 60 of the dryer 1 is composed of, for example, a microcomputer, etc., and includes a CPU, a ROM storing a program for controlling the operation of the dryer 1, and temporarily storing data used to execute the program. RAM. The operation of the dryer 1 is controlled by the control unit 60. The wire switch 56 and the motor 11 are connected to the control unit 60.
在烘干机1进行烘干运转的情况下，控制部60控制马达11以使滚筒4交替地反复进行逆时针旋转和顺时针旋转。When the dryer 1 performs the drying operation, the control unit 60 controls the motor 11 so that the drum 4 alternately repeats counterclockwise rotation and clockwise rotation.
在进行烘干运转时，在金属丝开关56切换为接通状态的情况下，控制部60控制马达11以停止滚筒4的旋转。During the drying operation, when the wire switch 56 is switched to the ON state, the control unit 60 controls the motor 11 to stop the rotation of the drum 4.
本实施方式的烘干机1具备：烘干室3，配置于箱体2内；滚筒4，配置于烘干室3内，具有形成有多个通气孔4a的内周面；吸气路32，用于向烘干室3送入加热空气；排气路35，与形成于烘干室3下部的风道孔34连通，用于排出烘干室3内的空气；作为异物检测单元的异物检测部50，能检测从滚筒4的通 气孔4a向外侧突出的异物；以及作为控制单元的控制部60，控制对滚筒4进行旋转驱动的马达11，在由异物检测部50检测到异物的情况下，控制部60控制马达11以停止滚筒4的旋转。The dryer 1 of this embodiment includes: a drying chamber 3, which is arranged in the box body 2, a drum 4, which is arranged in the drying chamber 3, and has an inner peripheral surface formed with a plurality of vent holes 4a; and an air suction path 32 , Used to send heated air to the drying chamber 3; the exhaust path 35, connected with the air duct hole 34 formed in the lower part of the drying chamber 3, used to exhaust the air in the drying chamber 3; as a foreign matter detection unit The detection unit 50 can detect foreign objects protruding from the vent 4a of the drum 4 to the outside; and the control unit 60 as a control unit controls the motor 11 that drives the drum 4 to rotate. When the foreign object detection unit 50 detects foreign objects Next, the control unit 60 controls the motor 11 to stop the rotation of the drum 4.
由此，在本实施方式的烘干机1中，若检测到从滚筒4的通气孔4a向外侧突出的异物，则滚筒4的旋转停止，因此能防止滚筒4在异物突出的状态下旋转而因该异物导致风道孔34的端部壁部或滚筒4破损。Thus, in the dryer 1 of the present embodiment, if a foreign object protruding from the air hole 4a of the drum 4 is detected, the rotation of the drum 4 is stopped. Therefore, it is possible to prevent the drum 4 from rotating and causing the foreign object to protrude. This foreign matter causes the end wall of the air duct hole 34 or the drum 4 to be damaged.
在本实施方式的烘干机1中，作为异物检测单元的异物检测部50能检测向风道孔34内突出的异物。In the dryer 1 of the present embodiment, the foreign matter detection unit 50 as a foreign matter detection unit can detect foreign matter protruding into the air duct hole 34.
由此，在本实施方式的烘干机1中，检测在风道孔34内从滚筒4的通气孔4a向外侧突出的异物，因此在滚筒4于异物突出的状态下继续旋转的情况下，能检测到与风道孔34的端部壁部碰撞的异物。Thus, in the dryer 1 of the present embodiment, the foreign matter protruding from the air hole 4a of the drum 4 to the outside in the air duct hole 34 is detected. Therefore, when the drum 4 continues to rotate with the foreign matter protruding, Foreign objects that collide with the end wall of the air duct hole 34 can be detected.
在本实施方式的烘干机1中，作为控制单元的控制部60控制马达11以使滚筒4交替地反复进行逆时针旋转和顺时针旋转，并且，作为异物检测单元的异物检测部50能检测比风道孔34的中央部靠右侧处和比风道孔34的中央部靠左侧处的异物。In the dryer 1 of this embodiment, the control unit 60 as the control unit controls the motor 11 to alternately repeat the counterclockwise rotation and clockwise rotation of the drum 4, and the foreign object detection unit 50 as the foreign object detection unit can detect more than Foreign matter on the right side of the center of the air duct hole 34 and on the left side of the center of the air duct hole 34.
由此，在本实施方式的烘干机1中，能在滚筒4顺时针旋转的情况下在比风道孔34的中央部靠左侧处检测异物，能在滚筒4逆时针旋转的情况下在比风道孔34的中央部靠右侧处检测异物，因此即使在滚筒4于异物突出的状态下向任一方向旋转的情况下，也能检测风道孔34的端部壁部附近的异物。因此，能抑制在异物检测部50未检测到异物的情况下该异物与风道孔34的端部壁部碰撞。Therefore, in the dryer 1 of the present embodiment, when the drum 4 rotates clockwise, foreign matter can be detected on the left side of the center portion of the air duct hole 34, and when the drum 4 rotates counterclockwise, The foreign matter is detected on the right side of the center portion of the air duct hole 34, so even when the drum 4 is rotated in either direction with the foreign matter protruding, it is possible to detect the area near the end wall of the air duct hole 34 foreign body. Therefore, it is possible to prevent the foreign object from colliding with the end wall portion of the air duct hole 34 when the foreign object is not detected by the foreign object detection unit 50.
在本实施方式的烘干机1中，作为异物检测单元的异物检测部50包括金属丝51和检测金属丝51发生了移动的作为移动检测部的金属丝开关56，金属丝51具有：第一部分51a，在比风道孔34的中央部靠顺时针旋转下游侧处沿着滚筒4的旋转轴被拉直；以及第二部分51b，在比风道孔34的中央部靠逆时针旋转下游侧处沿着滚筒4的旋转轴被拉直。In the dryer 1 of this embodiment, the foreign object detection unit 50 as a foreign object detection unit includes a wire 51 and a wire switch 56 as a movement detection unit that detects the movement of the wire 51. The wire 51 has: a first part 51a, which is straightened along the axis of rotation of the drum 4 at the downstream side of the center portion of the air duct hole 34 in a clockwise direction; and the second portion 51b, at the downstream side of the center portion of the air duct hole 34, which is rotated counterclockwise It is straightened along the axis of rotation of the drum 4.
由此，在本实施方式的烘干机1中，能通过一个金属丝开关56来检测分别向风道孔34的两端部被拉直的金属丝51发生了移动，因此与为分别向风道孔 34的两端部被拉直的金属丝51都配置金属丝开关56的情况相比，能降低制造成本。Therefore, in the dryer 1 of the present embodiment, it is possible to detect the movement of the wires 51 that are respectively straightened toward the both ends of the air duct hole 34 through a wire switch 56. Compared with the case where the wire switch 56 is arranged on the wire 51 whose both ends of the passage hole 34 are straightened, the manufacturing cost can be reduced.
以上，对本发明的实施方式进行了说明，但各部分的具体结构并不仅限于上述的实施方式。As mentioned above, although the embodiment of this invention was described, the specific structure of each part is not limited to the above-mentioned embodiment.
在上述实施方式中，通过具有金属丝51和金属丝开关56的异物检测部50来检测从滚筒4的通气孔4a向外侧突出的异物，但检测从滚筒4的通气孔4a向外侧突出的异物的异物检测单元的结构是任意的。In the above-mentioned embodiment, the foreign matter detecting unit 50 having the wire 51 and the wire switch 56 detects the foreign matter protruding from the vent hole 4a of the drum 4 to the outside, but detects the foreign matter protruding from the vent hole 4a of the drum 4 to the outside. The structure of the foreign object detection unit is arbitrary.
例如，如图6所示，本发明的异物检测单元也可以是使用了光电传感器的异物检测部150，该异物检测部150具有两个发光部151和两个受光部152。For example, as shown in FIG. 6, the foreign object detection unit of the present invention may be a foreign object detection unit 150 using a photosensor. The foreign object detection unit 150 has two light-emitting parts 151 and two light-receiving parts 152.
一个发光部151配置于风道孔34的正面侧端部的左侧，并且一个受光部152配置于风道孔34的背面侧端部的左侧。发光部151在比风道孔34的中央部靠左侧(顺时针旋转方向下游侧)处向受光部152输出光。从发光部151输出的光经过风道孔34的左端部附近的从风道孔34的左侧端部的壁部向内侧偏离的部分。由配置于风道孔34的左端部附近的发光部151和受光部152形成光电传感器。One light emitting part 151 is arranged on the left side of the front side end of the air duct hole 34, and one light receiving part 152 is arranged on the left side of the back side end of the air duct hole 34. The light emitting unit 151 outputs light to the light receiving unit 152 on the left side (downstream side in the clockwise rotation direction) of the center portion of the air duct hole 34. The light output from the light-emitting portion 151 passes through a portion near the left end of the air duct hole 34 that is deviated inward from the wall of the left end of the air duct hole 34. The light-emitting part 151 and the light-receiving part 152 arranged near the left end of the air duct hole 34 form a photosensor.
同样地，另一个发光部151配置于风道孔34的正面侧端部的右侧，并且另一个受光部152配置于风道孔34的背面侧端部的右侧。发光部151在比风道孔34的中央部靠右侧(逆时针旋转方向下游侧)处向受光部152输出光。从发光部151输出的光经过风道孔34的右端部附近的从风道孔34的右侧端部的壁部向内侧偏离的部分。由配置于风道孔34的右端部附近的发光部151和受光部152形成光电传感器。Similarly, the other light-emitting part 151 is arranged on the right side of the front-side end of the air duct hole 34, and the other light-receiving part 152 is arranged on the right side of the back-side end of the air duct hole 34. The light-emitting part 151 outputs light to the light-receiving part 152 on the right side (downstream side in the counterclockwise rotation direction) of the center part of the air duct hole 34. The light output from the light-emitting portion 151 passes through a portion near the right end of the air duct hole 34 that is deviated inward from the wall of the right end of the air duct hole 34. The light-emitting part 151 and the light-receiving part 152 arranged near the right end of the air duct hole 34 form a photosensor.
异物检测部150在从发光部151输出的光被受光部152接受的情况下为断开状态，与此相对，异物检测部150在从发光部151输出的光被遮挡而未被受光部152接受的情况下为接通状态。因此，当检测到从滚筒4的通气孔4a向外侧突出的异物经过发光部151与受光部152之间时，异物检测部150切换为接通状态。The foreign object detection unit 150 is in an off state when the light output from the light-emitting unit 151 is received by the light-receiving unit 152. In contrast, the foreign object detection unit 150 blocks the light output from the light-emitting unit 151 and is not received by the light-receiving unit 152. In the case of the connected state. Therefore, when it is detected that the foreign matter protruding to the outside from the vent hole 4a of the drum 4 passes between the light-emitting part 151 and the light-receiving part 152, the foreign matter detection part 150 is switched to the ON state.
因此，异物检测部150能检测在比风道孔34的中央部靠左侧(顺时针旋转下游侧、规定方向下游侧)处向风道孔34内突出的异物，并且能检测在比风道 孔34的中央部靠右侧(逆时针旋转下游侧、反规定方向下游侧)处向风道孔34内突出的异物。Therefore, the foreign matter detection unit 150 can detect the foreign matter protruding into the air duct hole 34 on the left side (clockwise rotation downstream side, downstream side in the predetermined direction) than the center part of the air duct hole 34, and can detect the foreign matter in the air duct hole 34. Foreign matter protruding into the air duct hole 34 at the center of the hole 34 on the right side (counterclockwise rotation downstream side, anti-predetermined downstream side).
如图7的(a)所示，本发明的异物检测单元也可以是具有两个限位开关251的异物检测部250。As shown in (a) of FIG. 7, the foreign object detection unit of the present invention may also be a foreign object detection unit 250 having two limit switches 251.
一个限位开关251配置于风道孔34的左端部。限位开关251具有安装于烘干室3的外周面的第一部件252和可移动地配置在第一部件252的第二部件253。A limit switch 251 is arranged at the left end of the air duct hole 34. The limit switch 251 has a first member 252 attached to the outer peripheral surface of the drying chamber 3 and a second member 253 movably arranged on the first member 252.
第二部件253能获取如图7的(b)所示从第一部件252向风道孔34的中央部突出的突出位置和如图7的(c)所示不从第一部件252突出的内部位置。The second member 253 can obtain the protruding position that protrudes from the first member 252 toward the center of the air duct hole 34 as shown in FIG. 7(b) and the protruding position that does not protrude from the first member 252 as shown in FIG. 7(c) Internal location.
第二部件253被弹簧部件254向突出位置按压。当力向第一部件252作用于第二部件253时，第二部件253抵抗弹簧部件254的弹力，从突出位置向内部位置移动。此时，安装于第二部件253的移动部件255与第二部件253一起移动，移动部件255的前端与检测部件256抵接。The second member 253 is pressed by the spring member 254 toward the protruding position. When a force acts on the first member 252 and the second member 253, the second member 253 resists the elastic force of the spring member 254 and moves from the protruding position to the inner position. At this time, the moving member 255 attached to the second member 253 moves together with the second member 253, and the front end of the moving member 255 abuts the detection member 256.
异物检测部250的限位开关251在第二部件253位于突出位置的情况下为断开状态，与此相对，在第二部件253向内部位置发生了移动的情况下为接通状态。因此，通过从滚筒4的通气孔4a向外侧突出的异物，第二部件253被按压向第一部件252，当检测到第二部件253向内部位置发生了移动时，异物检测部250切换为接通状态。The limit switch 251 of the foreign object detection unit 250 is in the off state when the second member 253 is at the protruding position, and on the other hand, is in the on state when the second member 253 is moved to the inner position. Therefore, the second member 253 is pressed against the first member 252 by the foreign matter protruding from the vent hole 4a of the drum 4 to the outside, and when it is detected that the second member 253 has moved to the inner position, the foreign matter detector 250 is switched to Pass state.
另一个限位开关251配置于风道孔34的右端部，能检测在比风道孔34的中央部靠逆时针旋转方向下游侧处向风道孔34内突出的异物。配置于风道孔34的右端部的限位开关251与配置于风道孔34的左端部的限位开关251相同。The other limit switch 251 is arranged at the right end of the air duct hole 34 and can detect foreign matter protruding into the air duct hole 34 on the downstream side of the center portion of the air duct hole 34 in the counterclockwise rotation direction. The limit switch 251 arranged at the right end of the air duct hole 34 is the same as the limit switch 251 arranged at the left end of the air duct hole 34.
因此，异物检测部250能检测在比风道孔34的中央部靠左侧(顺时针旋转下游侧、规定方向下游侧)处向风道孔34内突出的异物，并且能检测在比风道孔34的中央部靠右侧(逆时针旋转下游侧、反规定方向下游侧)处向风道孔34内突出的异物。Therefore, the foreign matter detection unit 250 can detect the foreign matter protruding into the air duct hole 34 on the left side (clockwise rotation downstream side, downstream side in the predetermined direction) than the center part of the air duct hole 34, and can detect the foreign matter in the air duct hole 34. Foreign matter protruding into the air duct hole 34 at the center of the hole 34 on the right side (counterclockwise rotation downstream side, anti-predetermined downstream side).
在上述实施方式和变形例中，异物检测部50能检测在比风道孔34的中央部靠左侧处向风道孔34内突出的异物，并且能检测在比风道孔34的中央部靠右侧处向风道孔34内突出的异物，但不限于此。异物检测部150、250也是同样如此。例如，也可以，如图8的(a)所示，异物检测部50仅检测在比风道 孔34的中央部靠左侧处向风道孔34内突出的异物。在图8的(a)中，使用固定部54a来代替第二旋转辊54。此外，也可以是，如图8的(b)所示，异物检测部50仅检测在比风道孔34的中央部靠右侧处向风道孔34内突出的异物。在图8的(b)中，在金属丝51绕于第一旋转辊53的外周面后，金属丝51的另一端部连接于金属丝开关56。In the above-mentioned embodiment and modification examples, the foreign matter detection unit 50 can detect the foreign matter protruding into the air duct hole 34 on the left side than the central part of the air duct hole 34, and can detect the foreign matter protruding into the air duct hole 34 on the left side than the central part of the air duct hole 34. The foreign matter protruding into the air duct hole 34 on the right side, but not limited to this. The same applies to the foreign object detection units 150 and 250. For example, as shown in (a) of FIG. 8, the foreign object detection unit 50 may only detect foreign objects protruding into the air duct hole 34 on the left side of the center portion of the air duct hole 34. In (a) of FIG. 8, a fixing portion 54 a is used instead of the second rotating roller 54. In addition, as shown in FIG. 8( b ), the foreign object detection unit 50 may only detect foreign objects protruding into the air duct hole 34 on the right side of the center portion of the air duct hole 34. In (b) of FIG. 8, after the wire 51 is wound around the outer peripheral surface of the first rotating roller 53, the other end of the wire 51 is connected to the wire switch 56.
在上述实施方式和变形例中，异物检测部50、150、250检测在风道孔34的左侧端部的壁部附近和风道孔34的右侧端部的壁部附近向风道孔34内突出的异物，但检测向风道孔34内突出的异物的检测位置不限于此。In the above-mentioned embodiment and modification examples, the foreign object detection units 50, 150, and 250 detect near the wall of the left end of the air duct hole 34 and near the wall of the right end of the air duct hole 34 toward the air duct hole 34. The foreign matter protruding into the inside, but the detection position for detecting the foreign matter protruding into the air duct hole 34 is not limited to this.
在上述实施方式中，分别向风道孔34的两端部被拉直的金属丝51形成为一体，通过一个金属丝开关56来检测该金属丝51发生了移动，但也可以是，与金属丝51的第一部分51a和第二部分51b对应的不同的金属丝分别向风道孔34的两端部被拉直，针对该不同的金属丝分别配置金属丝开关56。In the above-mentioned embodiment, the wires 51 that are drawn straight to the two ends of the air duct hole 34 are formed as one body, and a wire switch 56 is used to detect the movement of the wire 51, but it can also be combined with the metal wire. The different metal wires corresponding to the first part 51a and the second part 51b of the wire 51 are respectively straightened toward the two ends of the air duct hole 34, and the metal wire switches 56 are respectively arranged for the different metal wires.

Claims (4)

  1. 一种烘干机，其特征在于，具备：A dryer, characterized in that it has:
    烘干室，配置于箱体内；The drying room is arranged in the box;
    滚筒，配置于所述烘干室内，具有形成有多个通气孔的内周面；The drum is arranged in the drying chamber and has an inner peripheral surface formed with a plurality of vent holes;
    吸气路，用于向所述烘干室送入加热空气；An air suction path for feeding heated air to the drying chamber;
    排气路，与形成于所述烘干室的下部的风道孔连通，用于排出所述烘干室内的空气；The exhaust path is connected to the air duct hole formed in the lower part of the drying chamber for exhausting the air in the drying chamber;
    异物检测单元，能检测从所述滚筒的所述通风孔向外侧突出的异物；以及A foreign matter detection unit capable of detecting foreign matter protruding outward from the ventilation hole of the drum; and
    控制单元，控制对所述滚筒进行旋转驱动的马达，The control unit controls the motor for rotating and driving the drum,
    在由所述异物检测单元检测到所述异物的情况下，所述控制单元控制所述马达以停止所述滚筒的旋转。In a case where the foreign matter is detected by the foreign matter detection unit, the control unit controls the motor to stop the rotation of the drum.
  2. 根据权利要求1所述的烘干机，其特征在于，The dryer of claim 1, wherein:
    所述异物检测单元能检测向所述风道孔内突出的所述异物。The foreign matter detection unit can detect the foreign matter protruding into the air duct hole.
  3. 根据权利要求2所述的烘干机，其特征在于，The dryer of claim 2, wherein:
    所述异物检测单元控制所述马达以使所述滚筒交替地反复进行规定方向的旋转和反规定方向的旋转，并且The foreign object detection unit controls the motor so that the drum alternately repeats rotation in a predetermined direction and rotation in an opposite direction, and
    所述异物检测单元能在比所述风道孔的中央部靠所述规定方向下游侧处和比所述风道孔的中央部靠所述反规定方向下游侧处检测所述异物。The foreign matter detection unit can detect the foreign matter at a downstream side in the predetermined direction from the center of the air duct hole and at a downstream side in the opposite predetermined direction from the center of the air duct hole.
  4. 根据权利要求3所述的烘干机，其特征在于，The dryer of claim 3, wherein:
    所述异物检测单元包括金属丝和检测所述金属丝发生了移动的移动检测部，The foreign object detection unit includes a metal wire and a movement detection part that detects the movement of the metal wire,
    所述金属丝具有：第一部分，在比所述风道孔的中央部靠所述规定方向下游侧处沿着所述滚筒的旋转轴被拉直；以及第二部分，在比所述风道孔的中央部靠所述反规定方向下游侧处沿着所述滚筒的旋转轴被拉直。The wire has: a first portion that is straightened along the rotation axis of the drum at a downstream side in the predetermined direction than the central portion of the air duct hole; and a second portion that is more than the air duct The central part of the hole is straightened along the rotation axis of the drum on the downstream side in the opposite direction.
PCT/CN2020/134951 2019-12-18 2020-12-09 Drying machine WO2021121100A1 (en)

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JP2019-228189 2019-12-18

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JP2008200276A (en) * 2007-02-20 2008-09-04 Sanyo Electric Co Ltd Clothes dryer
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