WO2012114753A1 - Drum-type washing machine - Google Patents

Drum-type washing machine Download PDF

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Publication number
WO2012114753A1
WO2012114753A1 PCT/JP2012/001234 JP2012001234W WO2012114753A1 WO 2012114753 A1 WO2012114753 A1 WO 2012114753A1 JP 2012001234 W JP2012001234 W JP 2012001234W WO 2012114753 A1 WO2012114753 A1 WO 2012114753A1
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WO
WIPO (PCT)
Prior art keywords
water
washing machine
water tank
water level
air trap
Prior art date
Application number
PCT/JP2012/001234
Other languages
French (fr)
Japanese (ja)
Inventor
伊丹　雅洋
井上　豊
Original Assignee
パナソニック株式会社
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 パナソニック株式会社 filed Critical パナソニック株式会社
Priority to CN201280001112.8A priority Critical patent/CN102844489B/en
Priority to EP12749072.0A priority patent/EP2679717A4/en
Publication of WO2012114753A1 publication Critical patent/WO2012114753A1/en

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    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/261—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements
    • D06F37/262—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements made of plastic material, e.g. by injection moulding
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/087—Water level measuring or regulating devices
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/10—Filtering arrangements

Definitions

  • the present invention relates to a drum type washing machine for washing laundry contained in a rotating drum.
  • this type of drum type washing machine is provided with a water level detection structure for detecting the water level in the water tank (see, for example, Patent Document 1).
  • FIG. 3 is a vertical cross-sectional view showing the main configuration of a conventional drum-type washing machine described in Patent Document 1
  • FIG. 4 is a cross-sectional view showing a water level detection unit of the drum-type washing machine.
  • a water tank 3 is supported in a washing machine housing 2 via a suspension structure (not shown), and a cylindrical drum with a bottom is provided in the water tank 3. 5 is rotatably arranged.
  • a drainage path 7 for discharging the washing water in the water tank 3 is disposed at the bottom of the water tank 3.
  • a water level detection unit is configured by an air trap 100 integrally formed with the drainage path 7 and a water level sensor (not shown) connected to the air trap 100 by an air tube 104. The water level detection unit detects the water level of the washing water in the water tank 3.
  • connection part 101 of the drainage pipe 107 is connected to a drainage groove 20 formed in the water tank 3.
  • the drain pipe 107 is formed integrally with a water level detection pipe 108 having a reduced diameter and provided with an inclined portion 109 below, and one end of the water level detection pipe 108 opens into the air trap 100.
  • One end of the drain pipe 107 is connected to the drain outlet 102 and connected to the external drain pipe 103 via the drain valve 27.
  • the washing water flows toward the air trap 100 when the washing water in the water tank 3 is drained through the drainage path 7. It is easy for foreign matter such as lint to enter. If lint enters the air trap 100, an error may occur between the set water level of the water tank 3 and the actual water level.
  • the present invention solves the above-mentioned conventional problems, and in the piping structure at the bottom of the aquarium, a drum-type washing machine capable of stably detecting the water level of the aquarium because foreign matter such as lint is less likely to enter the air trap.
  • the purpose is to provide.
  • the present invention solves the above-described conventional problems, and in a drum-type washing machine, a washing machine housing, a water tank disposed in the washing machine housing, a rotating drum contained in the water tank, A filter case disposed inside the lower portion of the washing machine housing, an air trap having an opening below, a water level detection unit for detecting the water level of the water tank from the air pressure of the air trap, a drain outlet at the bottom of the water tank, and A drain pipe connected to the connection port of the filter case; and a water level detection pipe communicating the drain pipe and the opening of the air trap, wherein the water level detection pipe has an inclined portion near the lower side of the drain port.
  • the diameter of the drainage pipe is smaller than that of the drainage pipe, and the water level detection pipe, the drainage pipe, and the connection port of the filter case are arranged substantially horizontally.
  • the drum-type washing machine of the present invention can hardly detect foreign matter such as lint in the air trap and can stably detect the water level of the water tank.
  • a first aspect of the present invention is a drum-type washing machine, wherein a washing machine housing, a water tub disposed in the washing machine housing, a rotating drum contained in the water tub, and a lower inner portion of the washing machine housing.
  • an air trap having an opening below
  • a water level detection unit for detecting the water level of the water tank from the air pressure of the air trap
  • a drain port at the bottom of the water tank and a connection port of the filter case
  • a drainage pipe, and a water level detection pipe communicating the drainage pipe and the opening of the air trap, and the water level detection pipe has an inclined portion in the vicinity of the lower part of the drainage port so that the drainage pipe
  • the water level detection pipe, the drain pipe, and the connection port of the filter case are arranged substantially horizontally.
  • the drain port at the bottom of the tank is connected to the filter case connection port through the drain pipe. Can be rectified. Further, in the water level detection pipe that communicates the drain pipe and the opening of the air trap, there is an inclined part near the lower part of the drain port, and the water level detection pipe is formed to be smaller in diameter than the drain pipe. The water flow can be made difficult to flow. Accordingly, foreign matters such as yarn waste contained in the washing water can be made difficult to flow into the air trap, the air pressure in the air trap is stabilized, and the water level of the water tank can be detected stably.
  • the air trap and the drain port are further disposed substantially horizontally with the water level detection pipe, the drain pipe, and the connection port of the filter case. It is comprised so that. With such a configuration, foreign matters such as lint contained in the washing water can be more difficult to flow into the air trap, the air pressure in the air trap can be stabilized, and the water level of the aquarium can be detected stably. .
  • the third invention is the drum-type washing machine of the first invention or the second invention, wherein the water tank and the air trap are formed integrally from a reinforced plastic material. With such a configuration, the air pressure in the air trap can be further stabilized.
  • FIG. 1 shows a longitudinal sectional view of a drum type washing machine in an embodiment of the present invention.
  • a water tank 42 is disposed inside a washing machine housing 41 so as to be swingable, and a rotating drum 43 is rotatably disposed within the water tank 42.
  • a rotation shaft (rotation center shaft) 44 arranged in the horizontal direction is provided at the rotation center of the rotary drum 43.
  • a motor 45 attached to the rotating shaft 44 in the vicinity of the back side of the water tank 42 is connected via a belt 46. The rotational driving force of the motor 45 is transmitted to the rotating shaft 44 through the belt 46, and the rotating drum 43 is rotated in the forward and reverse directions.
  • several protruding plates 47 (baffles) for stirring the laundry (clothing) are provided on the inner wall surface of the rotating drum 43.
  • the inner wall surface of the rotating drum 43 is provided with a large number of water passage holes 48 penetrating the inner and outer sides of the rotating drum 43.
  • the left side in the figure is the front side
  • the right side in the figure is the back side.
  • the water tank 42, the rotating drum 43, the motor 45, and the like constitute a vibration water tank unit 49.
  • the water tank unit 49 is supported by a plurality of spring bodies 50 from the upper portion of the washing machine housing 41 and is also supported by a plurality of vibration damping dampers 51 from the lower portion of the washing machine housing 41. Thereby, the vibration generated in the water tub unit 49 is absorbed, and transmission to the washing machine casing 41 is suppressed.
  • the washing machine casing 41 has a casing opening 40 for putting clothes in and out, and the casing opening 40 is covered with a lid 52 so as to be freely opened and closed.
  • a seal packing 82 that connects both of them to act as vibration isolation and water sealing.
  • the lid 52 can seal and open the housing opening 40 via the seal packing 82. By opening the lid 52, the laundry can be taken in and out between the outside of the washing machine housing 41 and the inside of the rotary drum 43 through the clothing entrance 53 formed on the front surface of the rotary drum 43.
  • this drum type washing machine has a function of automatically controlling the motor 45, the water supply path 54, the drainage path 55, and the water circulation path 56 in accordance with the mode setting and control program to perform at least a washing process, a rinsing process, and a dehydrating process. is doing.
  • the water supply path 54 is a path for supplying water supplied from a water supply source outside the drum type washing machine into the water tank 42.
  • the first water supply hose 59 and the second water supply hose 60 connected to the water supply source accommodate a detergent and a soft finish and a drawer portion (not shown) that can be pulled out from the outside.
  • the first water supply hose 59 is provided with a first electromagnetic valve 57 (first water supply part)
  • the second water supply hose 60 is provided with a second electromagnetic valve 58 (second water supply part). Yes.
  • the detergent container 61 is connected to the water tank 42 through the water supply path 62.
  • the water supplied from the water supply source is supplied into the detergent container 61 through the first water supply hose 59 or the second water supply hose 60.
  • the water supplied into the detergent container 61 is supplied into the water tank 42 through the water supply path 62 in a timely manner.
  • the drainage path 55 is a path for draining the washing water in the water tank 42 to the outside of the drum type washing machine.
  • a drainage port 85 is provided in a recess 71 formed in the bottom of the water tank 42, and a drainage pipe 64 is connected to the drainage port 85.
  • One end of the drain pipe 64 is connected to the case connection port 89 of the filter case 83.
  • the filter case 83 accommodates a lint filter 65 (drainage filter) that collects lint, and the lint filter 65 can be removed from the outside of the front lower portion of the washing machine housing 41 by the filter knob 84. Yes.
  • a drainage pump 63 is connected to the filter case 83, and a drainage hose 66 disposed from the inside of the washing machine casing 41 to the upper upper side is connected to the discharge side of the drainage pump 63.
  • the drainage pump 63 is driven to allow the washing water in the water tank 42 to pass through the drain pipe 64 connected to the recess 71 at the bottom of the water tank 42. Flows in. After passing through the lint filter 65 in the filter case 83, the washing water is drained to the outside of the drum type washing machine through the drain pump 63 and the drain hose 66.
  • the other end of the drain pipe 64 is connected to a water level detection pipe 87, and the drain pipe 64 and the water level detection pipe 87 are formed integrally with each other.
  • An inclined portion 86 is provided in the vicinity of the lower portion of the drainage port 85 of the water level detection pipe 87, so that the diameter of the water level detection pipe 87 is formed smaller than the diameter of the drainage pipe 64. .
  • One end of the water level detection pipe 87 communicates with the opening 88 of the air trap 74.
  • the drain pipe 64 is preferably made of a soft material such as a rubber material in consideration of connectivity with other members, prevention of leakage from the connection location, and vibration absorption of the water tank unit 49 during the dehydration process.
  • the air trap 74 is formed integrally with the water tank 42 on the side wall portion of the outer periphery of the rear of the bottom of the water tank 42.
  • An air pipe 75 is connected to the air trap 74, and a water level detection unit 76 that is provided inside the upper part of the washing machine housing 41 and includes a pressure sensor is connected to the air trap 74 via the air pipe 75. ing.
  • the air in the air trap 74 is compressed according to the supplied water level, and the air pressure is transmitted to the water level detection unit 76 through the air pipe 75.
  • the water level detection part 76 can detect the water level of the multi stage in the water tank 42 from the change of an air pressure.
  • the filter case 83 is disposed at the lower right front of the washing machine housing 41 for the operability of the filter knob 84. Further, in order to efficiently pipe the drain pipe 64, the drain port 85 is provided on the right side of the vertical center of the water tank 42 when viewed from the front. The piping structure at the bottom will be described later with reference to FIG.
  • the water circulation path 56 circulates the water in the water tank 42 as necessary during the pre-washing process, the washing process, the rinsing process, etc., in order to prevent premature dissolution and bias of the detergent, and to improve the function of rinsing and rinsing. In addition, the water in the water tank 42 is circulated.
  • the drain pipe 64 and the lint filter 65 that are also used as the drain path 55 are connected to the inflow side path 68 of the circulation pump 67.
  • the discharge side passage 69 of the circulation pump 67 is communicated with the inside of the water tank 42 at the jet outlet 70 inside the front surface of the water tank 42.
  • the circulation pump 67 By driving the circulation pump 67, the washing water in the water tank 42 is guided to the inflow side path 68 to the circulation pump 67 through the drain pipe 64 and the lint filter 65. Thereafter, the wash water is discharged into the rotary drum 43 as the circulating water from the outlet 70 through the circulation pump 67 and the discharge side passage 69 in the direction indicated by the solid line arrow.
  • the circulating water discharged into the rotating drum 43 is used as washing water and is circulated through the water circulation path 56 again.
  • the water tank 42 has a circular opening on the front surface, and a plurality of jets 70 are provided along the circumference of the opening edge. Circulating water enters the rotating drum 43 from all directions of the circumference of the opening edge. Discharged.
  • a warm water heater (heating unit) 72 for heating the washing water is disposed in the recess 71 formed in the bottom of the water tank 42.
  • a hot water heater 72 for example, a sheathed heater or the like is used, and is arranged so as to extend in the horizontal direction in the recess 71.
  • the wash water in the water tank 42 heated by the hot water heater 72 is discharged into the rotary drum 43 through the plurality of spouts 70, so that the wash water is sprinkled on clothes and the wash water is circulated again.
  • a temperature detection unit 73 such as a thermistor for detecting the water temperature is provided in the vicinity of the hot water heater 72.
  • connection hose 77 serves to remove air from the water tank 42 that is pressurized by the process operation.
  • a vibration detection unit 78 that detects the vibration of the water tank unit 49 is disposed at the upper rear portion of the water tank 42.
  • a vibration detection unit 78 for example, a multi-axis acceleration sensor is used, and not the acceleration in one direction, but the front-rear direction (X-axis direction), the left-right direction (Y-axis direction), as viewed from the front side of the drum type washing machine, The vibration of the three-axis direction in the vertical direction (Z-axis direction) is detected to control the operation of the drum type washing machine. This is because the vibration of the actual aquarium unit 49 is not necessarily limited to one direction, and is detected with high accuracy using a multi-axis acceleration sensor.
  • the selection of modes and various functions such as an operation course in the operation of the drum type washing machine is performed by the user inputting to the input setting unit 80 from the operation panel 79 provided at the upper front of the washing machine housing 41.
  • a control device 81 is disposed inside the upper part of the washing machine housing 41, and the control device 81 displays a display corresponding to information input through the input setting unit 80 on a display unit (not shown). To inform the user.
  • FIG. 2 is a perspective view of an essential part of the piping structure such as the drainage channel 55 at the bottom of the water tub 42 of the drum type washing machine in the embodiment of the present invention as viewed from below.
  • the drainage port 85 of the water tank 42 is disposed on the right side of the vertical center of the water tank 42, and the drainage pipe 64 connected to the drainage port 85.
  • a filter case 83 connected to one end of the washing machine housing 41 is disposed at the lower right on the front side of the washing machine housing 41.
  • a circulation pump 67 connected to the discharge side passage 69 and a drain pump 63 connected to the drain hose 66 are arranged on the left and right sides of the filter case 83.
  • the air trap 74 formed behind the drain port 85, the water level detection pipe 87, the drain port 85, the drain pipe 64, and the case connection port 89 of the filter case 83 are arranged substantially horizontally. .
  • the water tank 42 and the air trap 74 are integrally formed from a reinforced plastic material such as glass-filled polypropylene (for example, formed by integral molding). Therefore, in the washing process and the rinsing process, the air pressure in the air trap 74 is stabilized, and variations in the water level detected by the water level detection unit 76 are suppressed.
  • a reinforced plastic material such as glass-filled polypropylene (for example, formed by integral molding). Therefore, in the washing process and the rinsing process, the air pressure in the air trap 74 is stabilized, and variations in the water level detected by the water level detection unit 76 are suppressed.
  • the washing water filled in the drainage passage 55 from the water tank 42 is drained from the drainage hose 66 to the outside by driving the drainage pump 63.
  • a strong water flow from the drain port 85 to the filter case 83 is generated via the drain pipe 64. Since the air trap 74, the water level detection pipe 87, the drain port 85, the drain pipe 64, and the case connection port 89 of the filter case 83 are arranged substantially horizontally, the flow of water is rectified. It flows into the filter case 83. Further, since the inclined portion 86 is provided in the vicinity of the water level detection pipe 87 below the drain port 85, the water level detection pipe 87 is formed to have a smaller diameter than the drain pipe 64.
  • the water in the drain pipe 64 is suppressed from flowing into the water level detection pipe 87. Accordingly, foreign matter such as yarn waste contained in the washing water in the water tank 42 can be prevented from flowing back into the air trap 74, and the air level changes due to accumulation of yarn waste and the water level becomes unstable over time. It is suppressed.
  • the drain pipe 64 is preferably formed from a soft material such as a rubber material. By using a soft material for the drain pipe 64, the connection with the drain port 85, the connection with the opening 88 of the air trap 74, or the connection with the case connection port 89 is facilitated, and water leakage from the connection point is prevented. it can.
  • the air trap 74, the water level detection pipe 87, the drain port 85, the drain pipe 64, and the case connection port 89 of the filter case 83 are arranged substantially horizontally.
  • the water flow from the drain port 85 at the bottom of the water tank 42 toward the case connection port 89 of the filter case 83 through the drain pipe 64 can be rectified.
  • an inclined portion 86 is provided in the vicinity of the lower part of the drain port 85, and the water level detection pipe 87 is formed to be smaller in diameter than the drain pipe 64.
  • the rotation center of the rotating drum 43 is arranged in the horizontal direction.
  • the rotation center of the rotating drum is arranged to be inclined with respect to the horizontal direction. It may be such a case.
  • the water flow toward the case connection port 89 can be rectified.
  • the effect of rectification can be enhanced by disposing the air trap 74 and the drain port 85 substantially horizontally.
  • the members are slightly inclined with respect to the horizontal direction so as not to substantially affect the rectification of the water flow. It includes the state that was done.
  • the drum type washing machine according to the present invention is difficult for foreign matter such as lint to enter the air trap and can stably detect the water level of the aquarium. Applicable for washing machine applications.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

An air trap (74) is formed integrally with a water tank (42) in the side wall at the bottom rear of the outer circumference of the water tank (42) and has an opening (88) at the bottom. A water level detection tube (87) communicating with the air trap (74) via the opening (88) is formed integrally at one end of a drainage pipe (64) which is connected to a drainage port (85) formed at the bottom of the water tank (42). The drainage pipe (64) is connected to a case connection port (89) of a filter case (83), and by arranging the air trap (74), the water level detection tube (87), the drainage port (85), the drainage pipe (64), and the case connection port (89) essentially horizontally, the drainage flow is rectified, foreign objects such as pieces of thread contained in the wash water are less prone to flow into the air trap (74), and the water level in the water tank (42) is stabilized.

Description

ドラム式洗濯機Drum washing machine
　本発明は、回転ドラム内に収容した洗濯物を洗濯するドラム式洗濯機に関するものである。 The present invention relates to a drum type washing machine for washing laundry contained in a rotating drum.
　従来、この種のドラム式洗濯機では、水槽内の水位を検知する水位検知構造が備えられている（例えば、特許文献１参照）。 Conventionally, this type of drum type washing machine is provided with a water level detection structure for detecting the water level in the water tank (see, for example, Patent Document 1).
　図３は、特許文献１に記載された従来のドラム式洗濯機の要部構成を示す縦断面図であり、図４は、同ドラム式洗濯機の水位検知部を示す断面図である。 FIG. 3 is a vertical cross-sectional view showing the main configuration of a conventional drum-type washing machine described in Patent Document 1, and FIG. 4 is a cross-sectional view showing a water level detection unit of the drum-type washing machine.
　図３に示すように、従来のドラム式洗濯機では、洗濯機筺体２内にサスペンション構造（図示せず）を介して水槽３が支持され、この水槽３内には有底円筒状の回転ドラム５が回転自在に配置されている。水槽３の底部には、水槽３内の洗濯水を排出するための排水経路７が配設されている。図４に示すように、排水経路７と一体に形成されたエアトラップ１００と、エアトラップ１００にエアチューブ１０４で接続された水位センサ（図示せず）とにより水位検知部が構成されており、水位検知部により水槽３内の洗濯水の水位検知が行なわれる。 As shown in FIG. 3, in a conventional drum type washing machine, a water tank 3 is supported in a washing machine housing 2 via a suspension structure (not shown), and a cylindrical drum with a bottom is provided in the water tank 3. 5 is rotatably arranged. A drainage path 7 for discharging the washing water in the water tank 3 is disposed at the bottom of the water tank 3. As shown in FIG. 4, a water level detection unit is configured by an air trap 100 integrally formed with the drainage path 7 and a water level sensor (not shown) connected to the air trap 100 by an air tube 104. The water level detection unit detects the water level of the washing water in the water tank 3.
　排水経路７において、排水管１０７の接続部１０１は、水槽３に形成された排水溝２０に連結されている。排水管１０７はその直径を小さくして下方に傾斜部１０９を設けた水位検知管１０８と一体に形成され、水位検知管１０８の一端はエアトラップ１００内に開口している。そして、排水管１０７の一端は排水口１０２に連結されて、排水弁２７を介して外部排水管１０３に接続されている。 In the drainage path 7, the connection part 101 of the drainage pipe 107 is connected to a drainage groove 20 formed in the water tank 3. The drain pipe 107 is formed integrally with a water level detection pipe 108 having a reduced diameter and provided with an inclined portion 109 below, and one end of the water level detection pipe 108 opens into the air trap 100. One end of the drain pipe 107 is connected to the drain outlet 102 and connected to the external drain pipe 103 via the drain valve 27.
特開２００５－１３７６４５号公報JP 2005-137645 A
　しかしながら、前記従来のドラム式洗濯機における水位検知部の構成では、排水経路７を通して水槽３内の洗濯水を排水する際に、洗濯水がエアトラップ１００に向かって流れるため、エアトラップ１００内に糸屑などの異物が入りこみやすい。エアトラップ１００内に糸屑が入り込むと、水槽３の設定水位と実際の水位との間で誤差が生じる場合がある。 However, in the configuration of the water level detection unit in the conventional drum-type washing machine, the washing water flows toward the air trap 100 when the washing water in the water tank 3 is drained through the drainage path 7. It is easy for foreign matter such as lint to enter. If lint enters the air trap 100, an error may occur between the set water level of the water tank 3 and the actual water level.
　本発明は、前記従来の課題を解決するもので、水槽底部の配管構造において、エアトラップ内に糸屑などの異物が入りにくく、水槽の水位を安定して検知することができるドラム式洗濯機を提供することを目的とする。 The present invention solves the above-mentioned conventional problems, and in the piping structure at the bottom of the aquarium, a drum-type washing machine capable of stably detecting the water level of the aquarium because foreign matter such as lint is less likely to enter the air trap. The purpose is to provide.
　本発明は、前記従来の課題を解決するもので、ドラム式洗濯機において、洗濯機筺体と、前記洗濯機筺体内に配設された水槽と、前記水槽内に内包された回転ドラムと、前記洗濯機筺体の下部内方に配設されたフィルタケースと、下方に開口を有するエアトラップと、前記エアトラップの空気圧から前記水槽の水位を検知する水位検知部と、前記水槽底部の排水口および前記フィルタケースの接続口に接続された排水管と、前記排水管と前記エアトラップの前記開口とを連通する水位検知管とを備え、前記水位検知管は、前記排水口の下方近傍に傾斜部を有することにより前記排水管より径小に形成され、さらに、前記水位検知管と前記排水管と前記フィルタケースの接続口とが、略水平に配置されたものである。 The present invention solves the above-described conventional problems, and in a drum-type washing machine, a washing machine housing, a water tank disposed in the washing machine housing, a rotating drum contained in the water tank, A filter case disposed inside the lower portion of the washing machine housing, an air trap having an opening below, a water level detection unit for detecting the water level of the water tank from the air pressure of the air trap, a drain outlet at the bottom of the water tank, and A drain pipe connected to the connection port of the filter case; and a water level detection pipe communicating the drain pipe and the opening of the air trap, wherein the water level detection pipe has an inclined portion near the lower side of the drain port. The diameter of the drainage pipe is smaller than that of the drainage pipe, and the water level detection pipe, the drainage pipe, and the connection port of the filter case are arranged substantially horizontally.
　このような構成により、水槽内の洗濯水を排水する際に、水槽底部の排水口から排水管を通してフィルタケースの接続口へと向かう水流を整流化することができる。よって、洗濯水に含まれる糸屑などの異物がエアトラップ内へ流れ込みにくくすることができ、エアトラップ内の空気圧が安定し、水槽の水位を安定して検知することができる。 With such a configuration, when draining the wash water in the aquarium, it is possible to rectify the water flow from the drain outlet at the bottom of the aquarium to the connection port of the filter case through the drain pipe. Accordingly, foreign matters such as yarn waste contained in the washing water can be made difficult to flow into the air trap, the air pressure in the air trap is stabilized, and the water level of the water tank can be detected stably.
　本発明のドラム式洗濯機は、エアトラップ内に糸屑などの異物が入りにくく、水槽の水位を安定して検知することができる。 The drum-type washing machine of the present invention can hardly detect foreign matter such as lint in the air trap and can stably detect the water level of the water tank.
　本発明のこれらの態様と特徴は、添付された図面についての好ましい実施形態に関連した次の記述から明らかになる。
本発明の実施の形態におけるドラム式洗濯機の縦断面図 同ドラム式洗濯機の下部配管部を下方から見た要部斜視図 従来のドラム式洗濯機の縦断面図 同ドラム式洗濯機の水位検知部を示す断面図 These aspects and features of the invention will become apparent from the following description, taken in conjunction with the preferred embodiments with reference to the accompanying drawings, in which:
The longitudinal cross-sectional view of the drum type washing machine in embodiment of this invention The principal part perspective view which looked at the lower piping part of the drum type washing machine from the lower part Vertical section of a conventional drum-type washing machine Sectional drawing which shows the water level detection part of the drum type washing machine
　第１の発明は、ドラム式洗濯機において、洗濯機筺体と、前記洗濯機筺体内に配設された水槽と、前記水槽内に内包された回転ドラムと、前記洗濯機筺体の下部内方に配設されたフィルタケースと、下方に開口を有するエアトラップと、前記エアトラップの空気圧から前記水槽の水位を検知する水位検知部と、前記水槽底部の排水口および前記フィルタケースの接続口に接続された排水管と、前記排水管と前記エアトラップの前記開口とを連通する水位検知管とを備え、前記水位検知管は、前記排水口の下方近傍に傾斜部を有することにより前記排水管より径小に形成され、さらに、前記水位検知管と前記排水管と前記フィルタケースの接続口とが、略水平に配置されたものである。 A first aspect of the present invention is a drum-type washing machine, wherein a washing machine housing, a water tub disposed in the washing machine housing, a rotating drum contained in the water tub, and a lower inner portion of the washing machine housing. Connected to the disposed filter case, an air trap having an opening below, a water level detection unit for detecting the water level of the water tank from the air pressure of the air trap, a drain port at the bottom of the water tank, and a connection port of the filter case A drainage pipe, and a water level detection pipe communicating the drainage pipe and the opening of the air trap, and the water level detection pipe has an inclined portion in the vicinity of the lower part of the drainage port so that the drainage pipe Further, the water level detection pipe, the drain pipe, and the connection port of the filter case are arranged substantially horizontally.
　水位検知管と排水管とフィルタケースの接続口とが略水平に配置されていることにより、水槽内の洗濯水を排水する際に、水槽底部の排水口から排水管を通してフィルタケースの接続口へと向かう水流を整流化することができる。さらに、排水管とエアトラップの開口とを連通する水位検知管において、排水口の下方近傍に傾斜部を有し、水位検知管が排水管より径小に形成されていることにより、エアトラップ内へ水流が流れ込みにくくすることができる。よって、洗濯水に含まれる糸屑などの異物がエアトラップ内へ流れ込みにくくすることができ、エアトラップ内の空気圧が安定し、水槽の水位を安定して検知することができる。 Since the water level detection pipe, drain pipe and filter case connection port are arranged almost horizontally, when draining the washing water in the tank, the drain port at the bottom of the tank is connected to the filter case connection port through the drain pipe. Can be rectified. Further, in the water level detection pipe that communicates the drain pipe and the opening of the air trap, there is an inclined part near the lower part of the drain port, and the water level detection pipe is formed to be smaller in diameter than the drain pipe. The water flow can be made difficult to flow. Accordingly, foreign matters such as yarn waste contained in the washing water can be made difficult to flow into the air trap, the air pressure in the air trap is stabilized, and the water level of the water tank can be detected stably.
　第２の発明は、第１の発明のドラム式洗濯機において、前記エアトラップと前記排水口とがさらに、前記水位検知管、前記排水管、および前記フィルタケースの接続口と略水平に配置されるように構成したものである。このような構成により、洗濯水に含まれる糸屑などの異物がエアトラップ内へより流れ込みにくくすることができ、エアトラップ内の空気圧が安定し、水槽の水位を安定して検知することができる。 According to a second aspect of the present invention, in the drum type washing machine of the first aspect, the air trap and the drain port are further disposed substantially horizontally with the water level detection pipe, the drain pipe, and the connection port of the filter case. It is comprised so that. With such a configuration, foreign matters such as lint contained in the washing water can be more difficult to flow into the air trap, the air pressure in the air trap can be stabilized, and the water level of the aquarium can be detected stably. .
　第３の発明は、第１の発明または第２の発明のドラム式洗濯機において、前記水槽および前記エアトラップは、強化プラスチック材から一体的に形成されるように構成したものである。このような構成により、エアトラップ内の空気圧をより安定させることができる。 The third invention is the drum-type washing machine of the first invention or the second invention, wherein the water tank and the air trap are formed integrally from a reinforced plastic material. With such a configuration, the air pressure in the air trap can be further stabilized.
　以下、本発明の実施の形態について、図面を参照しながら説明する。尚、この実施の形態によって本発明が限定されるものではない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiment.
　（実施の形態）
　図１は、本発明の実施の形態におけるドラム式洗濯機の縦断面図を示すものである。 (Embodiment)
FIG. 1 shows a longitudinal sectional view of a drum type washing machine in an embodiment of the present invention.
　図１に示すように、洗濯機筺体４１の内部に揺動自在に水槽４２が配設され、水槽４２内には、回転ドラム４３が回転自在に配設されている。回転ドラム４３の回転中心には水平方向に配置された回転軸（回転中心軸）４４が設けられている。この回転軸４４には、水槽４２の背面側近傍に取り付けたモータ４５がベルト４６を介して連結されている。モータ４５の回転駆動力がベルト４６を介して回転軸４４に伝達されて、回転ドラム４３が正転、逆転方向に回転駆動される。回転ドラム４３の内壁面には、洗濯物（衣類）を撹拌するための数個の突起板４７（バッフル）が設けられている。また、回転ドラム４３の内壁面には、回転ドラム４３の内外を貫通する多数の通水孔４８が全面に設けられている。なお、図１のドラム式洗濯機では、図示左側が前面側であり、図示右側が背面側となっている。 As shown in FIG. 1, a water tank 42 is disposed inside a washing machine housing 41 so as to be swingable, and a rotating drum 43 is rotatably disposed within the water tank 42. A rotation shaft (rotation center shaft) 44 arranged in the horizontal direction is provided at the rotation center of the rotary drum 43. A motor 45 attached to the rotating shaft 44 in the vicinity of the back side of the water tank 42 is connected via a belt 46. The rotational driving force of the motor 45 is transmitted to the rotating shaft 44 through the belt 46, and the rotating drum 43 is rotated in the forward and reverse directions. On the inner wall surface of the rotating drum 43, several protruding plates 47 (baffles) for stirring the laundry (clothing) are provided. The inner wall surface of the rotating drum 43 is provided with a large number of water passage holes 48 penetrating the inner and outer sides of the rotating drum 43. In the drum type washing machine of FIG. 1, the left side in the figure is the front side, and the right side in the figure is the back side.
　水槽４２、回転ドラム４３、モータ４５等により、振動系の水槽ユニット４９が構成されている。この水槽ユニット４９は、洗濯機筺体４１の上部から複数のばね体５０により支持されており、また、洗濯機筺体４１の下部から複数の防振ダンパー５１により防振支持されている。これにより、水槽ユニット４９に生じた振動が吸収され、洗濯機筐体４１への伝達が抑制される。 The water tank 42, the rotating drum 43, the motor 45, and the like constitute a vibration water tank unit 49. The water tank unit 49 is supported by a plurality of spring bodies 50 from the upper portion of the washing machine housing 41 and is also supported by a plurality of vibration damping dampers 51 from the lower portion of the washing machine housing 41. Thereby, the vibration generated in the water tub unit 49 is absorbed, and transmission to the washing machine casing 41 is suppressed.
　また、洗濯機筐体４１は衣類を出し入れする筐体開口４０を前面に有し、この筐体開口４０は、蓋体５２により開閉自在に覆われる。水槽４２の前面と筺体開口４０の開口縁との間には、両者を連結して防振と水封の役目をするシールパッキング８２が設けられている。蓋体５２は、このシールパッキング８２を介して筐体開口４０を密閉し、また開くことが可能とされている。この蓋体５２を開くことにより、回転ドラム４３の前面に形成された衣類出入口５３を通して洗濯機筐体４１の外部と回転ドラム４３内との間で洗濯物を出し入れできる。 Further, the washing machine casing 41 has a casing opening 40 for putting clothes in and out, and the casing opening 40 is covered with a lid 52 so as to be freely opened and closed. Between the front surface of the water tank 42 and the opening edge of the housing opening 40, there is provided a seal packing 82 that connects both of them to act as vibration isolation and water sealing. The lid 52 can seal and open the housing opening 40 via the seal packing 82. By opening the lid 52, the laundry can be taken in and out between the outside of the washing machine housing 41 and the inside of the rotary drum 43 through the clothing entrance 53 formed on the front surface of the rotary drum 43.
　また、このドラム式洗濯機は、モード設定や制御プログラムに従い、モータ４５、給水経路５４、排水経路５５、水循環経路５６を自動制御して、少なくとも洗い工程、すすぎ工程、脱水工程を行う機能を有している。 In addition, this drum type washing machine has a function of automatically controlling the motor 45, the water supply path 54, the drainage path 55, and the water circulation path 56 in accordance with the mode setting and control program to perform at least a washing process, a rinsing process, and a dehydrating process. is doing.
　給水経路５４は、ドラム式洗濯機の外部の給水源より供給される水を水槽４２内に供給する経路である。給水経路５４において、給水源に接続された第１の給水ホース５９および第２の給水ホース６０は、洗剤や柔軟仕上げ剤を収容し外部から引き出し自在の引き出し部（図示せず）を内部に収容する洗剤収容部６１に接続されている。第１の給水ホース５９には第１の電磁弁５７（第１の給水部）が設けられ、第２の給水ホース６０には第２の電磁弁５８（第２の給水部）が設けられている。洗剤収容部６１は、給水経路６２を通して水槽４２内に接続されている。第１の電磁弁５７または第２の電磁弁５８を開動作させることにより、給水源より供給された水が第１の給水ホース５９または第２の給水ホース６０を通して洗剤収容部６１内に供給される。洗剤収容部６１内に供給された水は給水経路６２を通して水槽４２内に適時に供給される。 The water supply path 54 is a path for supplying water supplied from a water supply source outside the drum type washing machine into the water tank 42. In the water supply path 54, the first water supply hose 59 and the second water supply hose 60 connected to the water supply source accommodate a detergent and a soft finish and a drawer portion (not shown) that can be pulled out from the outside. Connected to the detergent container 61. The first water supply hose 59 is provided with a first electromagnetic valve 57 (first water supply part), and the second water supply hose 60 is provided with a second electromagnetic valve 58 (second water supply part). Yes. The detergent container 61 is connected to the water tank 42 through the water supply path 62. By opening the first electromagnetic valve 57 or the second electromagnetic valve 58, the water supplied from the water supply source is supplied into the detergent container 61 through the first water supply hose 59 or the second water supply hose 60. The The water supplied into the detergent container 61 is supplied into the water tank 42 through the water supply path 62 in a timely manner.
　排水経路５５は、水槽４２内の洗濯水をドラム式洗濯機の外部へ排水する経路である。排水経路５５において、水槽４２の底部に形成された凹部７１には排水口８５が設けられ、この排水口８５には排水管６４が接続されている。排水管６４の一端は、フィルタケース８３のケース接続口８９に接続されている。フィルタケース８３は、糸屑類を捕集するリントフィルタ６５（排水フィルタ）を収容しており、フィルタつまみ８４により洗濯機筺体４１の前面下部外方からリントフィルタ６５を取り外すことが可能とされている。フィルタケース８３は、排水ポンプ６３が接続されており、排水ポンプ６３の排出側には、洗濯機筐体４１の内部から外部上方まで配設された排水ホース６６が接続されている。洗い工程終了時、すすぎ工程終了時など必要なときに、排水ポンプ６３の駆動によって、水槽４２内の洗濯水が、水槽４２の底部の凹部７１に接続された排水管６４を介してフィルタケース８３内に流れ込む。フィルタケース８３内のリントフィルタ６５を通過した後、排水ポンプ６３および排水ホース６６を通してドラム式洗濯機の外部へ洗濯水が排水される。 The drainage path 55 is a path for draining the washing water in the water tank 42 to the outside of the drum type washing machine. In the drainage passage 55, a drainage port 85 is provided in a recess 71 formed in the bottom of the water tank 42, and a drainage pipe 64 is connected to the drainage port 85. One end of the drain pipe 64 is connected to the case connection port 89 of the filter case 83. The filter case 83 accommodates a lint filter 65 (drainage filter) that collects lint, and the lint filter 65 can be removed from the outside of the front lower portion of the washing machine housing 41 by the filter knob 84. Yes. A drainage pump 63 is connected to the filter case 83, and a drainage hose 66 disposed from the inside of the washing machine casing 41 to the upper upper side is connected to the discharge side of the drainage pump 63. When necessary, such as at the end of the washing process or at the end of the rinsing process, the drainage pump 63 is driven to allow the washing water in the water tank 42 to pass through the drain pipe 64 connected to the recess 71 at the bottom of the water tank 42. Flows in. After passing through the lint filter 65 in the filter case 83, the washing water is drained to the outside of the drum type washing machine through the drain pump 63 and the drain hose 66.
　排水管６４の他端は水位検知管８７に接続されており、排水管６４と水位検知管８７とは互いに一体に形成されている。水位検知管８７の排水口８５の下方近傍には傾斜部８６が設けられており、これにより、水位検知管８７の直径が排水管６４の直径よりも小さく形成（径小に形成）されている。水位検知管８７の一端は、エアトラップ７４の開口８８に連通されている。なお、排水管６４は、他の部材との接続性、接続箇所からの漏洩防止、脱水工程時の水槽ユニット４９の振動吸収性を考慮してゴム材などの軟質材で作られることが好ましい。 The other end of the drain pipe 64 is connected to a water level detection pipe 87, and the drain pipe 64 and the water level detection pipe 87 are formed integrally with each other. An inclined portion 86 is provided in the vicinity of the lower portion of the drainage port 85 of the water level detection pipe 87, so that the diameter of the water level detection pipe 87 is formed smaller than the diameter of the drainage pipe 64. . One end of the water level detection pipe 87 communicates with the opening 88 of the air trap 74. The drain pipe 64 is preferably made of a soft material such as a rubber material in consideration of connectivity with other members, prevention of leakage from the connection location, and vibration absorption of the water tank unit 49 during the dehydration process.
　エアトラップ７４は、水槽４２の底部後方外周の側壁部に、水槽４２と一体形成されている。このエアトラップ７４には空気管７５が接続されており、洗濯機筺体４１の上部内側に設けられ、圧力センサなどで構成される水位検知部７６が空気管７５を介してエアトラップ７４に接続されている。水槽４２の内部に給水されると、給水された水位に応じてエアトラップ７４内の空気が圧縮され、空気管７５を通じて空気圧が水位検知部７６に伝わる。これにより、水位検知部７６は空気圧の変化から水槽４２内の複数段の水位を検知することができる。 The air trap 74 is formed integrally with the water tank 42 on the side wall portion of the outer periphery of the rear of the bottom of the water tank 42. An air pipe 75 is connected to the air trap 74, and a water level detection unit 76 that is provided inside the upper part of the washing machine housing 41 and includes a pressure sensor is connected to the air trap 74 via the air pipe 75. ing. When water is supplied into the water tank 42, the air in the air trap 74 is compressed according to the supplied water level, and the air pressure is transmitted to the water level detection unit 76 through the air pipe 75. Thereby, the water level detection part 76 can detect the water level of the multi stage in the water tank 42 from the change of an air pressure.
　なお、フィルタケース８３は、フィルタつまみ８４の操作性のために、洗濯機筺体４１の前面右下部に配設されている。また、排水管６４を効率良く配管するために、排水口８５は、前面から見て、水槽４２の縦中心よりも右側に設けられている。なお、底部の配管構造については、図２を用いて後述する。 The filter case 83 is disposed at the lower right front of the washing machine housing 41 for the operability of the filter knob 84. Further, in order to efficiently pipe the drain pipe 64, the drain port 85 is provided on the right side of the vertical center of the water tank 42 when viewed from the front. The piping structure at the bottom will be described later with reference to FIG.
　水循環経路５６は、予洗い工程時、洗い工程時、すすぎ工程時など必要に応じ、水槽４２内の水を循環させて、洗剤の早期溶け込みや偏りの防止、洗いやすすぎの機能向上を図るために、水槽４２内の水を循環させる経路である。 The water circulation path 56 circulates the water in the water tank 42 as necessary during the pre-washing process, the washing process, the rinsing process, etc., in order to prevent premature dissolution and bias of the detergent, and to improve the function of rinsing and rinsing. In addition, the water in the water tank 42 is circulated.
　この水循環経路５６において、排水経路５５と兼用される排水管６４およびリントフィルタ６５は循環ポンプ６７の流入側経路６８に接続されている。循環ポンプ６７の吐出側経路６９は水槽４２の前面内側の噴出口７０にて水槽４２内に連通されている。循環ポンプ６７を駆動させることで、水槽４２内の洗濯水が、排水管６４およびリントフィルタ６５を通して、循環ポンプ６７への流入側経路６８に導かれる。その後、循環ポンプ６７および吐出側経路６９を通して噴出口７０より実線矢印で示す方向に洗濯水が循環水として回転ドラム４３内に吐出する。回転ドラム４３内に吐出された循環水は洗濯水として利用され、再び水循環経路５６にて循環される。なお、水槽４２は円形状の開口を前面に有し、この開口縁の円周に沿って複数の噴出口７０が設けられ、循環水は開口縁の円周の全方向から回転ドラム４３内へ吐出される。 In this water circulation path 56, the drain pipe 64 and the lint filter 65 that are also used as the drain path 55 are connected to the inflow side path 68 of the circulation pump 67. The discharge side passage 69 of the circulation pump 67 is communicated with the inside of the water tank 42 at the jet outlet 70 inside the front surface of the water tank 42. By driving the circulation pump 67, the washing water in the water tank 42 is guided to the inflow side path 68 to the circulation pump 67 through the drain pipe 64 and the lint filter 65. Thereafter, the wash water is discharged into the rotary drum 43 as the circulating water from the outlet 70 through the circulation pump 67 and the discharge side passage 69 in the direction indicated by the solid line arrow. The circulating water discharged into the rotating drum 43 is used as washing water and is circulated through the water circulation path 56 again. The water tank 42 has a circular opening on the front surface, and a plurality of jets 70 are provided along the circumference of the opening edge. Circulating water enters the rotating drum 43 from all directions of the circumference of the opening edge. Discharged.
　また、水槽４２の底部に形成した凹部７１には、洗濯水を加熱する温水ヒータ（加熱部）７２が配置されている。このような温水ヒータ７２としては、例えばシーズヒータ等が用いられ、凹部７１内にて水平方向に延在するように配置される。この温水ヒータ７２により加熱した水槽４２内の洗濯水を、前述のように、複数の噴出口７０を通して回転ドラム４３内に吐出することにより、洗濯水を衣類にふりかけて、この洗濯水をまた循環させる。加熱された洗濯水が衣類にふりかけられるため、洗濯水の分子活動が高まるとともに洗剤の活性化が高まるので、洗浄力を高め、かつ洗いムラを少なくすることができる。また、温水ヒータ７２近傍には、水温を検知するサーミスタ等の温度検知部７３が設けられている。 Further, a warm water heater (heating unit) 72 for heating the washing water is disposed in the recess 71 formed in the bottom of the water tank 42. As such a hot water heater 72, for example, a sheathed heater or the like is used, and is arranged so as to extend in the horizontal direction in the recess 71. As described above, the wash water in the water tank 42 heated by the hot water heater 72 is discharged into the rotary drum 43 through the plurality of spouts 70, so that the wash water is sprinkled on clothes and the wash water is circulated again. Let Since the heated washing water is sprinkled on the clothes, the molecular activity of the washing water is increased and the activation of the detergent is increased, so that the washing power can be increased and washing unevenness can be reduced. Further, in the vicinity of the hot water heater 72, a temperature detection unit 73 such as a thermistor for detecting the water temperature is provided.
　また、洗濯機筺体４１の上部内方に設けられた洗剤収容部６１の後面上部と水槽４２上部とが、連結ホース７７で接続されている。連結ホース７７は、工程運転動作により加圧される水槽４２内の空気を抜く役目をしている。 Further, the upper part of the rear surface of the detergent container 61 provided on the inner side of the upper part of the washing machine housing 41 and the upper part of the water tank 42 are connected by a connecting hose 77. The connection hose 77 serves to remove air from the water tank 42 that is pressurized by the process operation.
　また、水槽４２の上面後部には、水槽ユニット４９の振動を検知する振動検知部７８が配設されている。振動検知部７８としては例えば多軸の加速度センサが用いられ、一方向の加速度でなく、ドラム式洗濯機の前面側より見て、前後方向（Ｘ軸方向）、左右方向（Ｙ軸方向）、上下方向（Ｚ軸方向）の３軸方向の振動を検出して、ドラム式洗濯機の運転を制御する。これは、実際の水槽ユニット４９の振動は必ずしも一方向に限定できないので、多軸の加速度センサを用いて、精度高く検知するためである。 Further, a vibration detection unit 78 that detects the vibration of the water tank unit 49 is disposed at the upper rear portion of the water tank 42. As the vibration detection unit 78, for example, a multi-axis acceleration sensor is used, and not the acceleration in one direction, but the front-rear direction (X-axis direction), the left-right direction (Y-axis direction), as viewed from the front side of the drum type washing machine, The vibration of the three-axis direction in the vertical direction (Z-axis direction) is detected to control the operation of the drum type washing machine. This is because the vibration of the actual aquarium unit 49 is not necessarily limited to one direction, and is detected with high accuracy using a multi-axis acceleration sensor.
　ドラム式洗濯機の運転における運転コース等のモードや各種機能の選択は、洗濯機筺体４１の前面上部に設けられた操作パネル７９から使用者が入力設定部８０へ入力することで行われる。洗濯機筺体４１の上部内方には制御装置８１が配設されており、制御装置８１は、入力設定部８０を通じて入力された情報に対応する表示を、操作パネル７９上の表示部（図示せず）で表示して使用者に知らせる。 The selection of modes and various functions such as an operation course in the operation of the drum type washing machine is performed by the user inputting to the input setting unit 80 from the operation panel 79 provided at the upper front of the washing machine housing 41. A control device 81 is disposed inside the upper part of the washing machine housing 41, and the control device 81 displays a display corresponding to information input through the input setting unit 80 on a display unit (not shown). To inform the user.
　図２は、本発明の実施の形態におけるドラム式洗濯機の水槽４２底部における排水経路５５などの配管構造を下方から見た要部斜視図である。 FIG. 2 is a perspective view of an essential part of the piping structure such as the drainage channel 55 at the bottom of the water tub 42 of the drum type washing machine in the embodiment of the present invention as viewed from below.
　図２に示すように、ドラム式洗濯機の前面側から見て、水槽４２の排水口８５は水槽４２の縦中心よりも右側に配設されており、排水口８５に接続された排水管６４の一端に連結されたフィルタケース８３は洗濯機筺体４１の前面側右下部に配設されている。また、フィルタケース８３の左右には、吐出側経路６９に接続された循環ポンプ６７と排水ホース６６に接続された排水ポンプ６３とが配置されている。そして、排水口８５の後方に形成されたエアトラップ７４と、水位検知管８７と、排水口８５と、排水管６４と、フィルタケース８３のケース接続口８９とは、略水平に配置されている。 As shown in FIG. 2, when viewed from the front side of the drum type washing machine, the drainage port 85 of the water tank 42 is disposed on the right side of the vertical center of the water tank 42, and the drainage pipe 64 connected to the drainage port 85. A filter case 83 connected to one end of the washing machine housing 41 is disposed at the lower right on the front side of the washing machine housing 41. A circulation pump 67 connected to the discharge side passage 69 and a drain pump 63 connected to the drain hose 66 are arranged on the left and right sides of the filter case 83. The air trap 74 formed behind the drain port 85, the water level detection pipe 87, the drain port 85, the drain pipe 64, and the case connection port 89 of the filter case 83 are arranged substantially horizontally. .
　以上のように構成された本実施の形態のドラム式洗濯機について、以下その動作、作用を説明する。 The operation and action of the drum type washing machine of the present embodiment configured as described above will be described below.
　水槽４２とエアトラップ７４とは、ガラス入りポリプロピレンなどの強化プラスチック材から一体的に形成されている（例えば、一体成形などにより形成されている）。そのため、洗い工程、および、すすぎ工程においては、エアトラップ７４内の空気圧が安定し、水位検知部７６により検知される水位のばらつきが抑えられる。 The water tank 42 and the air trap 74 are integrally formed from a reinforced plastic material such as glass-filled polypropylene (for example, formed by integral molding). Therefore, in the washing process and the rinsing process, the air pressure in the air trap 74 is stabilized, and variations in the water level detected by the water level detection unit 76 are suppressed.
　排水工程においては、水槽４２から排水経路５５において満たされていた洗濯水が、排水ポンプ６３の駆動により、排水ホース６６から外部へ一気に排水される。この時に、排水口８５から排水管６４を介して、フィルタケース８３への強い水の流れが発生する。エアトラップ７４と、水位検知管８７と、排水口８５と、排水管６４と、フィルタケース８３のケース接続口８９とが、略水平に配置されていることにより、水の流れが整流となってフィルタケース８３内へ流れる。また、水位検知管８７における排水口８５の下方近傍に傾斜部８６が設けられているため、水位検知管８７は排水管６４よりも径小に形成されている。そのため、排水管６４内の水が水位検知管８７内に流れ込むことが抑制される。よって、水槽４２内の洗濯水に含まれる糸屑などの異物がエアトラップ７４へ逆流して流れ込みにくくすることができ、経年により糸屑などの堆積により空気圧が変化して水位が不安定になることが抑制される。 In the drainage process, the washing water filled in the drainage passage 55 from the water tank 42 is drained from the drainage hose 66 to the outside by driving the drainage pump 63. At this time, a strong water flow from the drain port 85 to the filter case 83 is generated via the drain pipe 64. Since the air trap 74, the water level detection pipe 87, the drain port 85, the drain pipe 64, and the case connection port 89 of the filter case 83 are arranged substantially horizontally, the flow of water is rectified. It flows into the filter case 83. Further, since the inclined portion 86 is provided in the vicinity of the water level detection pipe 87 below the drain port 85, the water level detection pipe 87 is formed to have a smaller diameter than the drain pipe 64. Therefore, the water in the drain pipe 64 is suppressed from flowing into the water level detection pipe 87. Accordingly, foreign matter such as yarn waste contained in the washing water in the water tank 42 can be prevented from flowing back into the air trap 74, and the air level changes due to accumulation of yarn waste and the water level becomes unstable over time. It is suppressed.
　また、排水管６４はゴム材などの軟質材から形成されることが好ましい。排水管６４に軟質材を用いることで、排水口８５との接続やエアトラップ７４の開口８８との接続、あるいはケース接続口８９との接続における作業が容易となり、接続箇所からの水漏れを防止できる。 The drain pipe 64 is preferably formed from a soft material such as a rubber material. By using a soft material for the drain pipe 64, the connection with the drain port 85, the connection with the opening 88 of the air trap 74, or the connection with the case connection port 89 is facilitated, and water leakage from the connection point is prevented. it can.
　以上のように、本実施の形態によれば、エアトラップ７４と、水位検知管８７と、排水口８５と、排水管６４と、フィルタケース８３のケース接続口８９とが、略水平に配置されていることにより、水槽４２内の洗濯水を排水する際に、水槽４２底部の排水口８５から排水管６４を通してフィルタケース８３のケース接続口８９へと向かう水流を整流化することができる。さらに、排水管６４とエアトラップ７４の開口８８とを連通する水位検知管８７において、排水口８５の下方近傍に傾斜部８６を設けて、水位検知管８７が排水管６４より径小に形成されていることにより、エアトラップ７４内へ水流が流れ込みにくくすることができる。よって、洗濯水に含まれる糸屑などの異物がエアトラップ７４内へ流れ込みにくくすることができ、エアトラップ７４内の空気圧が安定し、水位検知部７６により水槽４２の水位を安定して検知できる。 As described above, according to the present embodiment, the air trap 74, the water level detection pipe 87, the drain port 85, the drain pipe 64, and the case connection port 89 of the filter case 83 are arranged substantially horizontally. Thus, when the washing water in the water tank 42 is drained, the water flow from the drain port 85 at the bottom of the water tank 42 toward the case connection port 89 of the filter case 83 through the drain pipe 64 can be rectified. Further, in the water level detection pipe 87 that connects the drain pipe 64 and the opening 88 of the air trap 74, an inclined portion 86 is provided in the vicinity of the lower part of the drain port 85, and the water level detection pipe 87 is formed to be smaller in diameter than the drain pipe 64. Therefore, it is possible to make it difficult for the water flow to flow into the air trap 74. Therefore, foreign matters such as lint contained in the washing water can be prevented from flowing into the air trap 74, the air pressure in the air trap 74 is stabilized, and the water level detection unit 76 can stably detect the water level of the water tank 42. .
　なお、上述の説明では、ドラム式洗濯機において、回転ドラム４３の回転中心が水平方向に配置される場合を例として説明したが、回転ドラムの回転中心が水平方向に対し傾斜して配置されるような場合であっても良い。 In the above description, in the drum type washing machine, the case where the rotation center of the rotating drum 43 is arranged in the horizontal direction has been described as an example. However, the rotation center of the rotating drum is arranged to be inclined with respect to the horizontal direction. It may be such a case.
　また、排水経路５５において、少なくとも、水位検知管８７と、排水管６４と、フィルタケース８３のケース接続口８９とが、略水平に配置されていれば、排水管６４内にてフィルタケース８３のケース接続口８９に向かう水流を整流化することができる。さらに加えて、エアトラップ７４と、排水口８５とも略水平に配置することで整流化の効果を高めることができる。なお、略水平に配置された状態には、それぞれの部材が水平に配置された状態の他、水流の整流化に実質的な影響を与えない程度に水平方向に対して僅かに傾斜して配置された状態をも含む。 Further, in the drainage path 55, if at least the water level detection pipe 87, the drainage pipe 64, and the case connection port 89 of the filter case 83 are arranged substantially horizontally, The water flow toward the case connection port 89 can be rectified. In addition, the effect of rectification can be enhanced by disposing the air trap 74 and the drain port 85 substantially horizontally. In addition, in the state of being arranged substantially horizontally, in addition to the state in which the respective members are arranged horizontally, the members are slightly inclined with respect to the horizontal direction so as not to substantially affect the rectification of the water flow. It includes the state that was done.
　なお、上記様々な実施の形態のうちの任意の実施の形態を適宜組み合わせることにより、それぞれの有する効果を奏するようにすることができる。 It should be noted that, by appropriately combining arbitrary embodiments of the above-described various embodiments, the effects possessed by them can be produced.
　本発明は、添付図面を参照しながら好ましい実施の形態に関連して充分に記載されているが、この技術の熟練した人々にとっては種々の変形や修正は明白である。そのような変形や修正は、添付した請求の範囲による本発明の範囲から外れない限りにおいて、その中に含まれると理解されるべきである。 Although the present invention has been fully described in connection with preferred embodiments with reference to the accompanying drawings, various changes and modifications will be apparent to those skilled in the art. Such changes and modifications are to be understood as being included therein, so long as they do not depart from the scope of the present invention according to the appended claims.
　２０１１年２月２３日に出願された日本国特許出願Ｎｏ．２０１１－０３６７５４号の明細書、図面、及び特許請求の範囲の開示内容は、全体として参照されて本明細書の中に取り入れられるものである。 Japanese patent application No. filed on February 23, 2011 The disclosures of the specification, drawings, and claims of 2011-036754 are incorporated herein by reference in their entirety.
　以上のように、本発明にかかるドラム式洗濯機は、エアトラップ内に糸屑などの異物が入りにくく、水槽の水位を安定して検知することができるので、ドラム式洗濯機、およびその他の洗濯機の用途に適用できる。 As described above, the drum type washing machine according to the present invention is difficult for foreign matter such as lint to enter the air trap and can stably detect the water level of the aquarium. Applicable for washing machine applications.
　４１　洗濯機筺体
　４２　水槽
　４３　回転ドラム
　６４　排水管
　６５　リントフィルタ
　７４　エアトラップ
　７６　水位検知部
　８３　フィルタケース
　８５　排水口
　８６　傾斜部
　８７　水位検知管
　８８　開口
　８９　ケース接続口 41 Washing Machine Housing 42 Water Tank 43 Rotating Drum 64 Drain Pipe 65 Lint Filter 74 Air Trap 76 Water Level Detection Unit 83 Filter Case 85 Drain Port 86 Inclined Portion 87 Water Level Detection Pipe 88 Opening 89 Case Connection Port

Claims (3)

  1. 　洗濯機筺体と、
    　前記洗濯機筺体内に配設された水槽と、
    　前記水槽内に内包された回転ドラムと、
    　前記洗濯機筺体の下部内方に配設されたフィルタケースと、
    　下方に開口を有するエアトラップと、
    　前記エアトラップの空気圧から前記水槽の水位を検知する水位検知部と、
    　前記水槽底部の排水口および前記フィルタケースの接続口に接続された排水管と、
    　前記排水管と前記エアトラップの前記開口とを連通する水位検知管とを備え、
    　前記水位検知管は、前記排水口の下方近傍に傾斜部を有することにより前記排水管より径小に形成され、さらに、前記水位検知管と前記排水管と前記フィルタケースの接続口とが、略水平に配置されたドラム式洗濯機。     A washing machine housing,
    A water tank disposed in the washing machine housing;
    A rotating drum contained in the water tank;
    A filter case disposed inside the lower portion of the washing machine housing;
    An air trap having an opening below;
    A water level detector for detecting the water level of the water tank from the air pressure of the air trap;
    A drain pipe connected to the drain port at the bottom of the water tank and the connection port of the filter case;
    A water level detection pipe communicating with the drain pipe and the opening of the air trap;
    The water level detection pipe is formed to have a smaller diameter than the drain pipe by having an inclined portion near the drain port, and the water level detection pipe, the drain pipe, and the connection port of the filter case are substantially Horizontal drum-type washing machine.
  2. 　前記エアトラップと前記排水口とがさらに、前記水位検知管、前記排水管、および前記フィルタケースの接続口と略水平に配置された請求項１に記載のドラム式洗濯機。 The drum-type washing machine according to claim 1, wherein the air trap and the drain port are further disposed substantially horizontally with the connection port of the water level detection tube, the drain tube, and the filter case.
  3. 　前記水槽および前記エアトラップは、強化プラスチック材から一体的に形成された請求項１または２に記載のドラム式洗濯機。 The drum-type washing machine according to claim 1 or 2, wherein the water tank and the air trap are integrally formed of a reinforced plastic material.
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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6131167B2 (en) * 2013-10-18 2017-05-17 日立アプライアンス株式会社 Washing machine
CN104178972B (en) * 2014-08-14 2017-02-15 松下家电研究开发（杭州）有限公司 Dehydration control method for clothing treatment device and clothing treating device thereof
CN106192284A (en) * 2015-05-05 2016-12-07 安徽聚隆传动科技股份有限公司 A kind of Water saving apparatus for full automatic washing machine and washing machine thereof
CN106149312A (en) * 2016-09-23 2016-11-23 珠海格力电器股份有限公司 Drainage and water level detection system and roller washing machine using same
JP7209166B2 (en) * 2017-10-30 2023-01-20 パナソニックＩｐマネジメント株式会社 dishwasher
JP6937467B2 (en) * 2018-02-27 2021-09-22 パナソニックＩｐマネジメント株式会社 Washing machine
JP2019187507A (en) * 2018-04-18 2019-10-31 パナソニックＩｐマネジメント株式会社 Washing machine
CN109440383A (en) * 2018-12-06 2019-03-08 无锡小天鹅股份有限公司 Device for clothing processing

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321809A (en) * 1980-09-04 1982-03-30 General Electric Company Washing machine
JPH07136381A (en) * 1993-11-18 1995-05-30 Toshiba Corp Spinning/washing machine
JP2005137645A (en) 2003-11-07 2005-06-02 Matsushita Electric Ind Co Ltd Drum type washing machine
JP2006255317A (en) * 2005-03-18 2006-09-28 Sharp Corp Washing machine
JP2010136740A (en) * 2008-12-09 2010-06-24 Panasonic Corp Washing machine
JP2011036754A (en) 2009-08-07 2011-02-24 Panasonic Electric Works Co Ltd Filtration device and water purifier

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4066094A (en) * 1976-03-17 1978-01-03 General Electric Company Combination drain sump and air pressure chamber for automatic clothes washing machine
US4168615A (en) * 1978-05-17 1979-09-25 General Electric Company Clothes washing machine with water recirculation
FR2599394B1 (en) * 1986-05-27 1988-07-29 Ciapem INTEGRATED COMPRESSION CHAMBER TANK
GB2236332B (en) * 1989-09-25 1994-04-13 Toshiba Kk Clothes washing machine
IT1294135B1 (en) * 1997-06-18 1999-03-22 Electrolux Zanussi Elettrodome WASHING MACHINE WITH PERFECTED CONTROL OF THE DYNAMIC SET-UP OF THE SWINGING GROUP
KR100479090B1 (en) * 2002-11-28 2005-03-28 엘지전자 주식회사 A water level sensing apparatus of washer
KR20050045260A (en) * 2003-11-10 2005-05-17 삼성전자주식회사 Drum type washing machine with water level sensing apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321809A (en) * 1980-09-04 1982-03-30 General Electric Company Washing machine
JPH07136381A (en) * 1993-11-18 1995-05-30 Toshiba Corp Spinning/washing machine
JP2005137645A (en) 2003-11-07 2005-06-02 Matsushita Electric Ind Co Ltd Drum type washing machine
JP2006255317A (en) * 2005-03-18 2006-09-28 Sharp Corp Washing machine
JP2010136740A (en) * 2008-12-09 2010-06-24 Panasonic Corp Washing machine
JP2011036754A (en) 2009-08-07 2011-02-24 Panasonic Electric Works Co Ltd Filtration device and water purifier

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2679717A4 *

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CN102844489A (en) 2012-12-26
JP2012170697A (en) 2012-09-10
EP2679717A4 (en) 2014-07-09
CN102844489B (en) 2015-02-04
EP2679717A1 (en) 2014-01-01
JP6074690B2 (en) 2017-02-08

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