WO2013061516A1

WO2013061516A1 - Washing machine

Info

Publication number: WO2013061516A1
Application number: PCT/JP2012/006293
Authority: WO
Inventors: 足達　勇治; 近藤　信二
Original assignee: パナソニック株式会社
Priority date: 2011-10-28
Filing date: 2012-10-02
Publication date: 2013-05-02
Also published as: CN103201422A; JPWO2013061516A1

Abstract

This washing machine is provided with a water tank, a drum, a water-supply valve (6), and a water-supply hose (20). The water-supply hose (20) has a two-layer structure comprising an inner hose (16) and an outer hose (26) containing the inner hose (16), a space part (28) being formed between the inner hose (16) and the outer hose. One end of the inner hose (16) is connected to a water spigot via a spigot connector (17), the other end being connected to the water-supply valve (6) via a water-supply hose connector (19). The outer hose (26) is sealed with a spigot-side seal (21) at the water spigot side, and with a water-supply valve-side seal (22) at the water-supply valve side. A branch hose (23) branching from the outer hose (26) and communicating with the space part (28) is connected to the outer hose (26).

Description

Washing machine

The present invention relates to a washing machine that automatically supplies water using a water supply hose that connects a washing machine body and a water tap.

Conventionally, for example, a washing machine has been proposed in which water leaks from a connection portion between a water supply hose and a hose attachment portion and the leaked water is prevented from adhering to electrical components in the washing machine and causing poor insulation (for example, patents) Reference 1).

Hereinafter, the structure around the connection part of the water supply hose of the conventional washing machine shown in Patent Document 1 will be described with reference to FIG.

FIG. 3 is a cross-sectional view of the main part around the connection part of the water supply hose of the conventional washing machine.

As shown in FIG. 3, the conventional washing machine includes at least a washing machine body 101, a water tub 102, an operation box 113, a water supply hose 114, a water supply valve 116, a hose attachment portion 117, a screw portion 117a, The flat part 117b, the communication hose 119, the water injection cap 120, the water level detection part 121, and the discharge guide 122 are provided.

The operation box 113 is provided in the upper part of the washing machine main body 101, and a water supply valve 116 controlled by a control unit (not shown) is provided in the operation box 113. Further, a hose attachment portion 117 is provided at the upper portion of the operation box 113, and a water supply hose 114 connected to a water tap is fastened by a screw portion 117a. Thereby, the water that has passed through the water supply valve 116 from the water tap through the water supply hose 114 is supplied to the water injection cap 120 through the communication hose 119. Then, the supplied water is supplied into the water tank 102 through the inside of the water injection cap 120.

Further, the discharge guide 122 is provided so as to engage with a flat surface portion 117b provided at the lower portion of the hose attachment portion 117, and is disposed below the water supply valve 116, for example, an upper portion of an electrical component such as the water level detection portion 121. Is provided. At this time, the discharge guide 122 discharges the water slightly leaked from the connection portion between the water supply hose 114 and the hose attachment portion 117 to the outside of the washing machine main body 101 through a space that does not adhere to the electrical components. As a result, the leaked water is applied to the electrical components to prevent problems such as a short circuit.

However, in the configuration of the conventional washing machine, there is a problem that if a large amount of water leaks from the gap between the connection portion between the water supply hose 114 and the hose attachment portion 117, the discharge guide 122 overflows. Therefore, since the water overflowing from the discharge guide 122 is applied to the electrical component and the electrical component breaks down, there is a demand for a configuration that reliably prevents water leakage regardless of the amount of water leaking.

JP 2006-87454 A

In order to solve the above-described problems, a washing machine of the present invention includes a water tank elastically supported in a washing machine body, a drum rotatably included in the water tank, a water supply valve for supplying water to the water tank, and a water tap And a water supply hose that connects the washing machine main body, the water supply hose is a double structure composed of an inner hose and an outer hose that encloses the inner hose by forming a space between the inner hose One end of the inner hose is connected to the water faucet via the faucet connection, the other end of the inner hose is connected to the water supply valve via the water supply hose connection, and the water faucet side of the outer hose is Sealed by the faucet side seal portion, the water supply valve side of the outer hose is sealed by the water supply valve side seal portion, and a branch hose branched from the outer hose and connected to the space portion is connected to the outer hose. Thereby, the leaked water is not applied to the electrical components in the washing machine body, and the failure of the electrical components can be prevented.

FIG. 1 is a longitudinal sectional view of a washing machine according to an embodiment of the present invention. FIG. 2: is principal part sectional drawing of the connection part periphery of the water supply hose of the washing machine. FIG. 3 is a cross-sectional view of a main part around a connection portion of a water supply hose of a conventional washing machine.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment)
FIG. 1 is a longitudinal sectional view of a washing machine according to an embodiment of the present invention.

As shown in FIG. 1, the washing machine of the present embodiment includes at least a washing machine body 1, a water tub 2, a drum 3, a water supply valve 6, and a water supply hose 20.

The water tank 2 is elastically supported by a suspension (not shown) or the like inside the washing machine body 1, and a drum 3 is rotatably provided inside the water tank 2. The drum 3 is rotationally driven in the forward and reverse directions around a rotating shaft 4 inclined upward from the horizontal direction by a motor 5 fixed to the outer wall of the water tank 2.

A water supply pipe 7 for supplying water from the water supply valve 6 into the water tank 2 is connected to the upper part of the water tank 2. Further, a drain valve 9 communicating with a drain port 8 formed in the lower part of the water tank 2 is provided in the washing machine main body 1, particularly below the water tank 2. The drain valve 9 is connected to the floor drain 12 through the in-machine hose 10 and the out-of-machine hose 11. The floor drain port 12 is a drain port provided on a floor (for example, a waterproof pan) on which the washing machine body 1 is installed. As a result, during drainage, the water in the water tank 2 passes through the drainage port 8, the drainage valve 9, the in-machine hose 10, and the outboard hose 11 in this order, and then through the floor drainage port 12 to the drainage groove outside the washing machine body 1. Drained into

In the vicinity of the water outlet 8 of the water tank 2, a water level sensor 14 is provided via an air trap 13. The water level sensor 14 converts a change in air pressure in the air trap 13 into an electric signal, and detects the level of water supplied to the inside of the water tank 2.

The lower part in the washing machine main body 1 is provided with a control unit 15 for controlling the water supply valve 6, the drain valve 9, the motor 5 and the like, and for controlling each step such as washing, rinsing and dehydration.

The water supply hose 20 has a double structure composed of an inner hose 16 and an outer hose 26 made of, for example, a tubular rubber hose, and connects the water faucet 18 and the washing machine body 1. One end of the inner hose 16 of the water supply hose 20 is connected to the water tap 18 via the tap connection portion 17 to supply water to the washing machine. The other end of the inner hose 16 of the water supply hose 20 is connected to the water supply valve 6 in the washing machine body 1 via the water supply hose connection part 19.

Hereinafter, the peripheral structure of the water supply hose 20 of the present embodiment will be described with reference to FIG. 1 using FIG.

FIG. 2 is a cross-sectional view of the main part around the connection portion of the water supply hose of the washing machine in the embodiment of the present invention.

As shown in FIG. 2, the inner hose 16 of the water supply hose 20 is enclosed in the outer hose 26, and a space portion 28 is provided between the outer hose 26 and the inner hose 16.

The outer hose 26 of the water supply hose 20 has a faucet side seal portion 21 covering the upstream side of the faucet connection portion 17 on the water faucet 18 side, and seals the faucet connection portion 17. Further, the outer hose 26 of the water supply hose 20 has a water supply valve side seal portion 22 that covers the downstream side of the water supply hose connection portion 19 on the water supply valve 6 side, and seals the water supply hose connection portion 19. In FIG. 2, the faucet side seal portion 21 and the water supply valve side seal portion 22 have a seal structure using another member such as an O-ring. In FIG. 2, the inner hose 16 and the faucet connection portion 17 or the water supply hose connection portion 19 are connected using screws or the like.

Further, the branch hose 23 is connected to the outer hose 26 of the water supply hose 20 so as to communicate with the space part 28 via the branch part 27 of the outer hose 26. As shown in FIG. 1, the branch hose 23 has such a length that at least the lower end 23a can reach the floor where the washing machine body 1 is installed, and the lower end 23a of the branch hose 23 is outside the machine. The hose 11 or the floor drain 12 is connected. At this time, the external hose 11 or the floor drain 12 is formed with, for example, a circular insertion port connected to the lower end 23a.

By the above, the water supply hose 20 of this Embodiment is comprised, and it connects with the water tap 18 and the water supply hose connection part 19. FIG.

Hereinafter, the operation and effect of each part of the water supply hose 20 when water leakage occurs will be described.

When water leaks from the inner hose 16 and the faucet connection part 17 or the water supply hose connection part 19 during operation of each step of the washing machine, or when the inner hose 16 bursts and water leaks, the inner hose The leaked water is discharged into the space 28 between 16 and the outer hose 26. And the water discharge | released to the space part 28 flows into the branch hose 23 branched from the outer side hose 26. FIG. At this time, since the lower end portion 23a of the branch hose 23 is connected to the external hose 11 or the floor drain port 12, the leaked water is drained from the washing machine body 1 through the external hose 11 or the floor drain port 12. It flows into the groove. Thereby, the leaked water can be prevented from being applied to the electrical components in the washing machine body 1. As a result, it is possible to prevent a failure of the electronic component and realize a washing machine having excellent reliability over a long period of time.

Moreover, since the branch hose 23 has such a length that at least the lower end 23a reaches the floor where the washing machine body 1 is installed, the lower end 23a of the branch hose 23 is arranged on the floor. It can be securely connected to the external hose 11 or the floor drain port 12 having a large amount. As a result, it is possible to prevent the leaked water from spilling on the floor.

Hereinafter, another embodiment of the washing machine of the present embodiment will be described with reference to FIG.

Another example of the washing machine according to the present embodiment includes a water leakage detection unit 24 configured to detect water leakage, for example, a water detection sensor corner, in the vicinity of the branch portion 27 in the outer hose 26. The alarm part 25 which consists of the provided buzzer sensor, for example is provided. When water leakage occurs in the space 28 of the outer hose 26, the water leakage detection unit 24 detects the water leakage and issues an alarm. At this time, the alarm unit 25 may have either a configuration in which an external alarm input function is provided on the washing machine body 1 side and the washing machine body 1 side issues an alarm, or a configuration in which the washing machine body 1 is a separate device. Moreover, when water leak is detected, it is good also as a structure which transmits water leak information to a portable information terminal, for example. As a result, it is possible to know that water has leaked from the outside, and convenience is improved.

As described above, if water leaks suddenly, the user can be notified immediately. Then, when the user closes the water tap 18, problems such as water leakage can be solved immediately. As a result, a washing machine excellent in safety can be realized.

In the present embodiment, the water supply hose 20 is described as an example of the water supply hose 20 formed of a tubular rubber hose, but is not limited thereto. For example, a resin hose or a bellows-like hose that can be freely expanded and contracted and easily handled may be used. This facilitates handling and enables efficient work during manufacturing and use.

In the present embodiment, the example in which the water leakage detection unit 24 is provided in the vicinity of the branching portion 27 in the outer hose 26 has been described. For example, as long as the water leakage detection unit 24 is in the outer hose 26, the water leakage detection unit 24 may be provided in the vicinity of the space portion 28 or the lower end portion 23 a of the branch hose 23, for example, if it is below the horizontal plane of the branch portion 27 of the branch hose 23. You can prepare anywhere.

In the present embodiment, the drum type washing machine is described as an example of the washing machine, but the present invention is not limited to this. For example, you may use for a vertical washing machine and the same effect is acquired.

The present invention is useful in fields such as a washing machine having a function of supplying water that is required to prevent water leakage during water supply.

DESCRIPTION OF SYMBOLS 1 Washing machine main body 2 Water tank 3 Drum 5 Motor 6 Water supply valve 15 Control part 16 Inner hose 17 Faucet connection part 18 Water supply faucet 19 Water supply hose connection part 20 Water supply hose 21 Faucet side seal part 22 Water supply valve side seal part 23 Branch hose 23a Lower end Section 24 Water leakage detection section 25 Alarm section 26 Outer hose 28 Space section

Claims

A water tank elastically supported in the washing machine body;
A drum rotatably contained in the water tank;
A water supply valve for supplying water to the water tank;
A water supply hose connecting the water faucet and the washing machine body,
The water supply hose has a double structure constituted by an inner hose and an outer hose that encloses the inner hose by forming a space between the inner hose,
One end of the inner hose is connected to the water faucet via a faucet connection, and the other end of the inner hose is connected to the water supply valve via a water supply hose connection.
The water faucet side of the outer hose is sealed by a faucet side seal portion, and the water supply valve side of the outer hose is sealed by a water supply valve side seal portion,
A washing machine in which the outer hose is branched from the outer hose and connected to a branch hose communicating with the space.
An external hose communicating the floor drainage port on the floor where the washing machine body is installed and a drain valve provided in the washing machine body,
The washing machine according to claim 1, wherein the branch hose is connected to the external hose.
The said branch hose is a washing machine of Claim 1 which has a length in which a lower end part reaches the floor where the said washing machine main body is installed.
The washing machine according to claim 1, wherein the branch hose has a lower end connected to a floor drain on a floor on which the washing machine body is installed.
The washing machine according to claim 1, further comprising a water leakage detection unit that detects water leakage in the outer hose.
The washing machine according to claim 5, further comprising an alarm unit that issues an alarm according to a detection result of the water leakage detection unit.