Washing machine

Abstract

A washing machine is provided with a detergent box (51) for containing detergent; a detergent box cover (52) mounted on the detergent box; a float (61) disposed between the detergent box and the detergent box cover and moving up and down according to the remaining amount of detergent contained in the detergent box; a guide portion (59) disposed around the float and supporting the side portion of the float so as to be able to move up and down; and a float cover (62) for limiting the movement of the float in the upward direction. The float cover is configured to be able to be mounted and detached at the upper portion of the guide portion.

Description

Technical Field

[0001] This invention relates to washing machines. Background Technology

[0002] Currently, washing machines with the function of automatically dispensing detergent (including fabric softener) into the washing tub are becoming increasingly popular. In such washing machines, a float that slides vertically according to the remaining amount of detergent is disposed inside the detergent dispenser (see, for example, Patent Document 1). The float is a component used to detect the remaining amount of detergent. A magnet is built into the float. The washing machine detects the remaining amount of detergent by using a magnetic sensor located near the bottom of the detergent dispenser to detect changes in the magnetic field of the magnet embedded in the float, which moves up and down according to the remaining amount of detergent. The washing machine uses a detergent dispenser cover mounted on the detergent dispenser to press the float down from above, preventing the float from moving higher than a certain height.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Chinese Patent Application Publication No. 107385800 (Specification) Figure 5 ) Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] As explained below, the prior art disclosed in Patent Document 1 aims to make the float less likely to be lost and to improve the cleanability around the float in the detergent dispenser.

[0008] In the prior art disclosed in Patent Document 1, when a user is maintaining the detergent dispenser, the float may fly out of the detergent dispenser while the detergent dispenser cover is being removed, and may be lost.

[0009] Therefore, it is considered to use a cover component, different from the detergent dispenser cover, to press down on the float from above to prevent it from being lost. However, if the cover component is not made of the detergent dispenser, the cleanability around the float may deteriorate due to detergent adhesion.

[0010] The present invention was made to solve the above-mentioned problems, and its purpose is to provide a washing machine that makes the float less likely to be lost and improves the cleanability around the float on the detergent dispenser.

[0011] Solution for solving the problem

[0012] To achieve the above objectives, the washing machine of the present invention includes: a detergent dispenser for containing detergent; a detergent dispenser cover mounted on the detergent dispenser; a float disposed between the detergent dispenser and the detergent dispenser cover, and capable of moving up and down according to the remaining amount of detergent contained in the detergent dispenser; a guide portion disposed around the float and capable of moving up and down to support the side portion of the float; and a float cover restricting the upward movement of the float, the float cover being configured to be installed and removed from the upper part of the guide portion.

[0013] Other options will be discussed later.

[0014] Invention Effects

[0015] According to the present invention, the float is less likely to be lost and the cleanability around the float on the detergent dispenser is improved. Attached Figure Description

[0016] Figure 1 This is a perspective view of the washing machine as described in the embodiment.

[0017] Figure 2 This is a diagram of the internal structure of the washing machine according to the implementation method.

[0018] Figure 3 This is a top view of the water supply unit.

[0019] Figure 4 This is a diagram of the internal structure of the water supply unit.

[0020] Figure 5 This is a top view of the detergent dispensing unit mounted on the water supply unit.

[0021] Figure 6 This is an exploded 3D view of the detergent dispensing section.

[0022] Figure 7 This is a cross-sectional view near the float in the detergent dispenser.

[0023] Figure 8 This is an exploded perspective view of the detergent dispensing section of a modified washing machine.

[0024] Figure 9 This is a cross-sectional view near the float in the detergent dispensing section of a modified washing machine.

[0025] Figure 10 This is a cross-sectional view taken from the side, showing the internal structure of a drum-type washing machine according to an embodiment of the present invention.

[0026] Figure 11 This is a three-dimensional diagram showing the internal structure of a front-loading washing machine after the outer casing has been removed.

[0027] Figure 12It is an exploded 3D view of the manually activated water supply unit.

[0028] Figure 13 This is a floor plan of the detergent dispenser in the manually operated water supply unit.

[0029] Figure 14 This is a three-dimensional view showing the inside of the detergent dispenser in a manually operated water supply unit.

[0030] Figure 15 This is a rear view of the detergent dispenser in the manually operated water supply unit.

[0031] Figure 16 This is a 3D view of the detergent tank in the manually operated water supply unit.

[0032] Figure 17 This is a floor plan of the detergent tank in the manually operated water supply unit.

[0033] Figure 18 This is a front view of the detergent tank in the manually operated water supply unit.

[0034] Figure 19 This is a rear view of the detergent tank in the manually operated water supply unit.

[0035] Figure 20 This is a side view of the detergent tank in the manually operated water supply unit.

[0036] Figure 21 This is a top view of the main body of the spray box of the manually operated water supply unit.

[0037] Figure 22 This is a magnified view of a spray box in a manually operated water supply unit.

[0038] Figure 23 This is a three-dimensional diagram showing the detergent dispenser being pulled out of a manually operated water supply unit.

[0039] Figure 24 It is a 3D view showing the detergent dispenser being stored in a manually operated water supply unit.

[0040] Figure 25 This is a floor plan showing the detergent dispenser being stored in a manually operated water supply unit.

[0041] Figure 26 This is an exploded 3D view of the automatic water supply unit.

[0042] Figure 27 This is an exploded perspective view of the detergent dispenser in an automatic water supply unit.

[0043] Figure 28 This is a three-dimensional view showing the inside of the detergent dispenser in an automatic water supply unit.

[0044] Figure 29 This is a rear view of the detergent dispenser in an automatic water supply unit.

[0045] Figure 30 This is a plan view of the sprinkler box representing the automatic water supply unit.

[0046] Figure 31 It is a three-dimensional diagram showing the state of the detergent dispenser being pulled out in an automatic water supply unit.

[0047] Figure 32 It is a three-dimensional diagram showing the state of the detergent dispenser being stored in an automatic water supply unit.

[0048] Figure 33 This is a cross-sectional view showing the detergent suction mechanism in the automatic water supply unit.

[0049] Figure 34 This is a cross-sectional view of the automatic water supply unit when cut along the sides at the detergent dispensing section and the fabric softener dispensing section.

[0050] Figure 35 This is a front view of the internal structure of a drum-type washing machine according to an embodiment.

[0051] Figure 36 This is a structural diagram of the area near the water level sensor.

[0052] Figure 37A This is a 3D view of the water level sensor bracket.

[0053] Figure 37B This is a top view of the water level sensor bracket.

[0054] Figure 37C This is a side view of the water level sensor bracket.

[0055] Figure 38 This is a three-dimensional view of the detergent tank, which forms the lower part of the detergent dispensing section.

[0056] Figure 39 This is a side sectional view of the detergent dispensing section.

[0057] Figure 40 A diagram illustrating the flow of detergent and other substances inside the detergent dispensing section. Detailed Implementation

[0058] Hereinafter, embodiments of the present invention (hereinafter referred to as "this embodiment") will be described in detail with reference to the accompanying drawings. Furthermore, the drawings are only schematically illustrated to a degree that allows for thorough understanding. Therefore, the present invention is not limited to the examples shown in the drawings. Additionally, in the drawings, common constituent elements and identical constituent elements are labeled and the same symbols are used, and repeated descriptions are omitted.

[0059] <The overall structure of a washing machine>

[0060] The following is for reference Figure 1 and Figure 2 The overall structure of the washing machine 100 according to this embodiment will be described. Here, it is assumed that the washing machine 100 is a global standard drum washing machine. A global standard drum washing machine is a washing machine that can be assembled to a washbasin or the like. Figure 1 This is a perspective view of the washing machine 100 according to this embodiment. Figure 2 This is a diagram of the internal structure of washing machine 100. Figure 2 This indicates the internal structure of the washing machine 100 with the top cover 11c and door 12 removed.

[0061] like Figure 1 As shown, the washing machine 100 of this embodiment includes a housing 11 and a door 12 mounted on the front surface of the housing 11.

[0062] The outer casing 11 has a front surface cover 11a, an outer casing body 11b, and an upper surface cover 11c.

[0063] The door 12 has a door handle 12a on the upper part and an operating part 13 on the front surface.

[0064] like Figure 2 As shown, the washing machine 100 has a drum 14 in the center of the interior of the outer casing 11, a control unit 20 and a water supply unit 30 above the drum 14, and a drying unit 140 extending upward from the side of the drum 14.

[0065] The drum 14 is a container for laundry. The drum 14 is enclosed within an outer tub (not shown) that functions as a water tank. Inside the drum 14 is a baffle 15 for lifting the laundry contained within it. A freely opening and closing front cover 11a is provided on the front surface side of the outer casing 11. A bellows 16 seals the front surface of the outer tub (not shown) with the front cover 11a.

[0066] The control unit 20 controls the overall operation of the washing machine 100. The control unit 20 is mounted on the housing 21 located above the drum 14. The water supply unit 30 has a water supply valve 31 that controls the water supply. The control unit 20 controls the water supply valve 31 to allow and stop the intake of water supplied from the outside.

[0067] The drying unit 140 is configured to circulate air between itself and the drum 14 while heating the air. The drying unit 140 has a heating element 141 and a blower fan 142. The drying unit 140 circulates air between itself and the drum 14 by driving the blower fan 142, and heats the air by heating the heating element 141, thereby drying the laundry contained in the drum 14.

[0068] <Structure of the water supply unit>

[0069] The following is for reference Figure 3 and Figure 4 The structure of the water supply unit 30 will be described. Figure 3 This is a top view of the water supply unit 30. Figure 4 This is a diagram of the internal structure of the water supply unit 30. Furthermore, Figure 4 The structure of the water supply unit 30 indicates that the spray box cover 33 has been removed.

[0070] like Figure 3 As shown, the water supply unit 30 is connected to a water supply mechanism (not shown) via a water supply valve 31. The water supply unit 30 includes a spray box 32 and a detergent dispensing unit 50.

[0071] The spray box 32 is a box for supplying water to the detergent box 51 built into the detergent dispensing unit 50. Inside the spray box 32, a flow path is formed for supplying water to the receiving portions (specifically, the automatic detergent dispensing portion 51a, the automatic fabric softener dispensing portion 51b, the manual detergent dispensing portion 51c, and the manual fabric softener dispensing portion 51d, described later) of the detergent or other receptacles provided in the detergent box 51. The spray box 32 injects water from above into any receiving portion of the detergent box 51. A spray box cover 33 is installed on the upper part of the spray box 32, sealing the flow path of the spray box 32.

[0072] like Figure 4 As shown, the detergent dispensing unit 50 includes a detergent box 51, a detergent box cover 52, and a detergent tank 53.

[0073] The detergent dispenser 51 is a component having one or more compartments for holding detergent.

[0074] The detergent dispenser cover 52 is a component installed on the upper surface of the detergent dispenser 51.

[0075] The detergent dispenser 53 is a component that prevents detergent from falling out of the water-supplied detergent box 51 along with the water.

[0076] The detergent dispenser 51 has an automatic detergent dispensing compartment 51a, an automatic fabric softener dispensing compartment 51b, a manual detergent dispensing compartment 51c, and a manual fabric softener dispensing compartment 51d.

[0077] The automatic detergent dispenser 51a is for dispensing detergent automatically. The automatic fabric softener dispenser 51b is for dispensing fabric softener automatically. The manual detergent dispenser 51c is for dispensing detergent manually. The manual fabric softener dispenser 51d is for dispensing fabric softener manually.

[0078] <Structure of the Detergent Dispensing Section>

[0079] The following is for reference Figure 5 and Figure 6 The structure of the detergent dispensing section 50 will be explained. Figure 5 This is a top view of the detergent dispensing section 50. Figure 6 This is an exploded perspective view of the detergent dispensing section 50. Furthermore, Figure 6 This indicates that the detergent dispenser 53 has been disassembled (see reference). Figure 4 The structure of the detergent dispensing section 50 is in a state of ( ).

[0080] like Figure 5 As shown, the detergent dispensing unit 50 has an automatic detergent dispensing compartment 51a on the front right side, and an automatic fabric softener dispensing compartment 51b behind the automatic detergent dispensing compartment 51a. Additionally, the detergent dispensing unit 50 has a manual detergent dispensing compartment 51c on the front left side, and a manual fabric softener dispensing compartment 51d behind (specifically, above the rear) the manual detergent dispensing compartment 51c.

[0081] like Figure 6 As shown, the detergent dispensing unit 50 is configured such that a detergent box cover 52 is disposed on the detergent box 51.

[0082] The detergent dispenser 51 has an automatic detergent dispensing compartment 51a, an automatic fabric softener dispensing compartment 51b, and a manual detergent dispensing compartment 51c. The bottom surface of each of the automatic detergent dispensing compartment 51a, the automatic fabric softener dispensing compartment 51b, and the manual detergent dispensing compartment 51c is an inclined surface that slopes downwards from the front to the rear.

[0083] The automatic detergent dispenser 51a is formed to pass between the automatic fabric softener dispenser 51b and the manual detergent dispenser 51c, and its rear portion extends to the rear of the manual detergent dispenser 51c. A float 61a is disposed at the rear of the automatic detergent dispenser 51a, and a float cover 62a is disposed on the float 61a. In this embodiment, the float 61a is described as a float with a cone shape (including a truncated cone shape) whose diameter decreases towards the lower side. Three or more guide portions 59a (three in the example) are disposed around the float 61a to support the float 61a in a way that allows it to move up and down.

[0084] The automatic fabric softener dispenser 51b extends rearward. A float 61b is disposed at the rear of the automatic fabric softener dispenser 51b, and a float cover 62b is disposed on the float 61b. Hereinafter, the float 61a and float 61b are collectively referred to as "float 61," and the float cover 62a and float cover 62b are collectively referred to as "float cover 62." In this embodiment, the float 61b, like the float 61a, is described as a float with a cone shape (including a truncated cone shape) that decreases in diameter towards the lower side. Three or more guide portions 59b (three in the example) are disposed around the float 61b to support the float 61b in a vertically movable manner. Hereinafter, the guide portions 59a and guide portions 59b are collectively referred to as "guide portions 59." In this embodiment, the guide portions 59 are described as components integrally formed on the bottom surface of the detergent dispenser 51. However, the guide portion 59 may also be configured as a different component from the detergent box 51, and fixed to the bottom surface of the detergent box 51 by means of adhesive or the like.

[0085] The manual detergent dispenser 51c is formed to extend rearward. The manual fabric softener dispenser 51d is disposed above the rear of the manual detergent dispenser 51c.

[0086] The detergent dispenser cover 52 has an opening OP51a communicating with the automatic detergent dispensing compartment 51a, an opening OP51b communicating with the automatic fabric softener dispensing compartment 51b, an opening OP51c communicating with the manual detergent dispensing compartment 51c, and a manual fabric softener dispensing compartment 51d.

[0087] A freely opening and closing cover CP51a is installed on the opening OP51a. Additionally, a freely opening and closing cover CP51b is installed on the opening OP51b. A manually operated fabric softener container 51d is stacked on top of a manually operated detergent container 51c formed in the detergent dispenser 51. The bottom surface of the manually operated fabric softener container 51d is an inclined surface that slopes downwards from front to rear. Inside the manually operated fabric softener container 51d is a tub TU51d for guiding manually operated fabric softener into the manually operated detergent container 51c. A cover CP51d is installed on the tub TU51d.

[0088] Furthermore, regarding the number of guide portions 59, considering the ability to stably support the float 61 during vertical movement, three or more are preferable. Additionally, regarding the spacing between the guide portions 59... Figure 7 The gap 593 shown is preferably as wide as possible to facilitate cleaning around the float 61 on the detergent dispenser 51. Therefore, it is particularly preferable that the number of guide sections 59 is three.

[0089] <Structure near the float>

[0090] The following is for reference Figure 7 The structure near float 61 is described. Figure 7 This is a cross-sectional view near the float 61 of the detergent dispensing section 50. Figure 7 Indicates along Figure 5 The layout shown depicts the cross-section of the detergent dispensing section 50 cut off by the X1-X1 line. Here, the structure near the float 61a, located inside the automatic detergent dispensing section 51a, will be described as an example. Furthermore, the structure near the float 61b, located inside the automatic fabric softener dispensing section 51b, is the same as the structure near the float 61a, and therefore, its description will be omitted here.

[0091] like Figure 7 As shown, the float 61a has a magnet 612 inside. The washing machine 100 uses a magnetic sensor (not shown) to detect changes in the magnetic field of the magnet 612 inside the float 61a, which moves up and down according to the amount of detergent remaining, thereby detecting the amount of detergent remaining. The magnetic sensor (not shown) is located near the bottom of the detergent dispenser 51.

[0092] A through hole 611 extending vertically is provided at the center of the float 61a. Three or more guide portions 59b (three in the example) are arranged around the float 61a, making point contact with the sides of the float 61a. A gap 593 is provided between each guide portion 59b to allow detergent and supplied water to pass through. The float 61a has its shaft portion 594, located on the bottom surface of the detergent dispenser 51, passing through the through hole 611, and its sides are supported by the guide portions 59b, thereby allowing it to move vertically according to the remaining amount of detergent.

[0093] A mounting portion 591 for mounting a float cover 62a is provided at the upper part of the guide portion 59a. The float cover 62a is configured to be installed and removed from the mounting portion 591 at the upper part of the guide portion 59a. Specifically, a fitting portion 621 that fits into the mounting portion 591 at the upper part of the guide portion 59a is provided at the lower part of the float cover 62a. The fitting portion 621 of the float cover 62a is configured to allow for installation and removal from the mounting portion 591 at the guide portion 59a by fitting, without using screws as other components. Such a washing machine 100 allows for easy installation and removal of the float cover 62 from the mounting portion 591 at the guide portion 59a by fitting.

[0094] In this embodiment, the guide portion 59a has a claw portion 592 in the mounting portion 591, and the float cover 62a has a groove portion 622 in the fitting portion 621. The claw portion 592 functions as a fixing portion for fixing the float cover 62a. The guide portion 59a engages with the groove portion 622 of the float cover 62a by the claw portion 592, thereby fixing the float cover 62a.

[0095] Furthermore, the guide portion 59b, float 61b, and float cover 62b disposed inside the automatic fabric softener dispenser 51b have the same structure as the guide portion 59a, float 61a, and float cover 62a disposed inside the automatic detergent dispenser 51a.

[0096] <Main Features of Washing Machines>

[0097] (1) As Figure 6 As shown, the washing machine 100 of this embodiment includes: a detergent dispenser 51 for holding detergent; a detergent dispenser cover 52 mounted on the detergent dispenser 51; a float 61 disposed between the detergent dispenser 51 and the detergent dispenser cover 52, and movable up and down according to the remaining amount of detergent in the detergent dispenser 51; a guide portion 59 disposed around the float 61 and supporting the side of the float 61 movable up and down; and a float cover 62 that restricts the upward movement of the float 61. The float cover 62 is configured to be installed and removed from the upper part of the guide portion 59.

[0098] The washing machine 100 of this embodiment can achieve the following effects (a) and (b).

[0099] (a) Even if the user removes the detergent dispenser cover 52 from the detergent dispenser 51 during maintenance, the float cover 62 can prevent the float 61 from flying out of the detergent dispenser 51 during the removal of the detergent dispenser cover 52. Therefore, the float 61 is less likely to be lost. Thus, the possibility of the float 61 being lost can be reduced.

[0100] (b) In addition, the float cover 62 can be removed from the upper part of the guide portion 59, thereby improving the cleanability around the float 61 of the detergent box 51.

[0101] (2) Figure 7 As shown, the guide portion 59 of the washing machine 100 of this embodiment has a mounting portion 591 for mounting a float cover 62 at the upper part, and the float cover 62 has a fitting portion 621 that fits into the mounting portion 591 of the guide portion 59 at the lower part.

[0102] The washing machine 100 of this embodiment can easily install and remove the float cover 62 from the mounting portion 591 of the guide portion 59a by fitting.

[0103] (3) Figure 7 As shown, the guide portion 59 of the washing machine 100 of this embodiment has a fixing portion (claw portion 592) for fixing the float cover 62 in the mounting portion 591.

[0104] The washing machine 100 of this embodiment can reliably fix the float cover 62 to the mounting portion 591 of the guide portion 59a.

[0105] (4) Figure 7 As shown, the guide portion 59 of the washing machine 100 of this embodiment has a gap 593 on the side for allowing detergent to pass through, and is configured to support the side of the float 61 with three or more point contacts or line contacts.

[0106] Because the washing machine 100 of this embodiment has a gap 593 on the side, it is easy to clean the area around the float 61 of the detergent dispenser 51. In addition, because the side of the float 61 is configured to support the float 61 with three or more point or line contacts, the float 61 can be moved up and down and supported stably.

[0107] (5) Figure 6As shown, the detergent dispenser 51 of the washing machine 100 in this embodiment is configured to hold fabric softener in addition to detergent. Furthermore, the washing machine 100 includes: another float (float 61b) that moves up and down depending on the remaining amount of fabric softener contained in the detergent dispenser 51; another guide portion (guide portion 59b) disposed around the other float and supporting the side portion of the other float in a way that allows it to move up and down; and another float cover (float cover 62b) that restricts the upward movement of the other float. The other float cover is configured to be able to be installed and removed from the upper part of the other guide portion.

[0108] The washing machine 100 of this embodiment can prevent the float 61 from getting lost even in the part containing fabric softener, and can improve the cleaning ability around the float 61 of the detergent dispenser 51.

[0109] As described above, the washing machine 100 according to this embodiment can prevent the float 61 from easily getting lost, even in the part containing fabric softener, and can improve the cleaning performance around the float 61 of the detergent dispenser 51.

[0110] This invention is not limited to the embodiments described above, and includes various modifications. For example, the embodiments described above are examples given in detail for ease of understanding of the invention, and are not limited to having all the structures described. Furthermore, a portion of the structure of the embodiments can be replaced with other structures, and other structures can be added to the structure of the embodiments. Additionally, regarding a portion of each structure, other structures can be added, deleted, or replaced.

[0111] For example, in the above embodiments, the washing machine 100 is described as having a drying unit 140, but the washing machine 100 may be a structure that does not have a drying unit 140, that is, it may be a washing machine that only has a washing function and does not have a drying function.

[0112] Alternatively, for example, washing machine 100 may be a type of washing machine other than upright or front-loading washing machines.

[0113] Additionally, for example, the float 61 of the washing machine 100 in the above embodiment (see reference) Figure 6 and Figure 7 It has a conical shape. The washing machine 100 is configured such that, in order to allow the float 61 to move stably up and down, a shaft portion 594 located on the bottom surface of the detergent dispenser 51 passes through a through hole 611 in the float 61. Because the shaft portion 594 is located on the bottom surface of the detergent dispenser 51, the structure of the detergent dispenser 51 becomes more complex, increasing manufacturing costs. Such a washing machine 100 can, for example... Figure 8 and Figure 9 The washing machine 100A shown is deformed. Figure 8This is an exploded perspective view of the detergent dispensing section 50 of the modified washing machine 100A. Figure 9 This is a cross-sectional view near the float of the detergent dispensing section 50 of a modified washing machine 100A.

[0114] Compared to the washing machine 100 of the above-described embodiment, the modified washing machine 100A (see reference) Figure 8 and Figure 9 The difference lies in the fact that floats 61a and 61b, which replace the cone shape (see reference), are... Figure 6 and Figure 7 ), having cylindrical shapes, floats 161a and 161b. Hereinafter, floats 161a and 161b will be referred to as "float 161".

[0115] Modified washing machine 100A (refer to) Figure 8 and Figure 9 The float 161 of the modified washing machine 100A is cylindrical. Figure 8 and Figure 9 Even without using shaft 594 (see reference) Figure 7 Alternatively, the float 161 can be made to move stably up and down by means of three or more guides 59 arranged around the float 161 (three in the example shown in the figure).

[0116] Such a modified example of washing machine 100A (refer to) Figure 8 and Figure 9 The washing machine 100 of the above-described embodiment (see reference) Figure 6 and Figure 7 Similarly, this makes the float 161 less likely to be lost and improves the cleaning performance around the float 161 of the detergent dispenser 51. Furthermore, the modified washing machine 100A (see reference...) Figure 8 and Figure 9 ) Shaft 594 can be omitted (see reference) Figure 7 Therefore, compared to the washing machine 100 of the above-described embodiment (see reference 100), Figure 6 and Figure 7 This simplifies the structure of the detergent dispenser 51 and reduces manufacturing costs.

[0117] Next, refer to Figure 1 , Figure 2 , Figures 10-34 Other embodiments of the present invention (hereinafter referred to as "this embodiment") will be described in detail below.

[0118] As prior art, Japanese Patent Application Publication No. 2013-111276 discloses a washing machine that includes a detergent dispensing unit in which a detergent dispensing section for pre-washing and a detergent dispensing section for main washing are arranged side by side in a horizontal direction, and a fabric softener dispensing section is arranged between these detergent dispensing sections.

[0119] In addition, there are also types that automatically dispense detergent and fabric softener instead of manually dispensed detergent and fabric softener. Furthermore, the large dispensing components for detergent and fabric softener are dedicated components in both the manual and automatic dispensing types.

[0120] In the manual dispensing type without automatic dispensing function described in the aforementioned bulletin, the pre-wash and main wash have separate paths and separate water supply. However, for fabric softener, the following method is adopted: water is supplied to the fabric softener dispensing section by simultaneously supplying water to the pre-wash and main wash, causing water to collide.

[0121] However, in both automatic and manual dispensing models, the detergent dispenser, being a large component, is not standardized. Therefore, it is necessary to design and manufacture the detergent dispenser for each model, resulting in increased costs. Furthermore, in manual dispensing models, there is a risk of insufficient water supply to the fabric softener dispenser, leading to fabric softener dissolution and residue. Therefore, the object of this invention is to provide a washing machine that can reduce costs while minimizing the risk of fabric softener dissolution and residue.

[0122] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0123] Figure 1 This is a perspective view of the drum-type washing machine according to an embodiment of the present invention. Figure 10 This is a cross-sectional view taken from the side, showing the internal structure of a drum-type washing machine according to an embodiment of the present invention. Figure 2 This is a perspective view showing the internal structure of a drum-type washing machine according to an embodiment of the present invention. First, using... Figure 1 , Figure 10 , Figure 2 The structure and operation of the washing machine 100 will be explained. Furthermore, in this embodiment, the horizontal direction when viewing the washing machine 100 from the user's perspective is defined as the left-right direction, the height direction as the up-down direction, and the depth direction as the front-back direction.

[0124] like Figure 1 As shown, the washing machine 100 is a built-in washing machine, comprising a housing 11, a washing tub (outer tub 10 and drum 14, see reference) Figure 10 It consists of a water supply unit 30 (detergent-type water supply unit). Furthermore, in Figure 1In this document, the water supply unit 30A (manually activated water supply unit) and the water supply unit 30B (automatically activated water supply unit) described later are collectively referred to as water supply unit 30.

[0125] The outer casing 11 forms the outline of the washing machine 100. The left and right sides and the back are formed by a single piece of steel plate. It consists of a U-shaped outer casing body 11b when viewed from above, a bottom plate (not shown) disposed below the outer casing body 11b, and a front surface cover 11a covering the front surface of the outer casing body 11b (see reference). Figure 2 It consists of an outer casing 11 and an upper surface cover 11c disposed on the upper part. In addition, a door 12 that can be opened and closed is disposed on the front surface of the outer casing 11.

[0126] Additionally, a water supply hose connection port (not shown) for supplying water from a faucet to the washing machine 100 is provided on the upper back of the outer casing 11. The door 12 is provided on the front cover 11a (see reference). Figure 2 The hinges of the door 12 allow for opening and closing. Additionally, the door 12 is equipped with a door handle 12a. By pulling the door handle 12a forward, the locking mechanism is disengaged, allowing the door to open towards the front. The door 12 can be opened by moving the door handle 12a towards the front surface cover 11a (see reference). Figure 2 It can be locked and closed by pushing.

[0127] The door 12 is equipped with an operation unit 13, which includes operation switches and the like. The operation unit 13 is a glass touchscreen and is connected to the control unit 20 (see reference) located inside the housing 11. Figure 2 Electrical connection.

[0128] like Figure 10 As shown, the front cover 11a and the opening of the outer groove 10 have concentric circular openings for clothing to pass through. A drain hose (not shown) for draining water is installed on the back of the outer casing 11.

[0129] The washing machine 100 has an outer tub 10 for storing water inside the outer casing 11. A drum 14 for accommodating laundry is inserted into the outer tub 10. The outer tub 10 is suspended from the outer casing 11 by springs (not shown) and is suspended from the left and right sides at the center of gravity of the outer tub 10. The lower part of the outer tub 10 is supported by a vibration damping member 112 fixed to the outer casing 11.

[0130] A rotating shaft 4, connected to the roller 14, is located behind the outer groove 10. A pulley 5 is connected to the rotating shaft 4. A motor 113 is connected to the pulley 5 via a belt 6. The motor 113 drives the roller 14 to rotate via the belt 6, pulley 5, and rotating shaft 4. The control unit 20 controls the rotational speed of the motor 113. The rotating shaft 4 connected to the roller 14 is set to horizontal. However, the rotational axis of the roller 14 can be tilted to raise the opening side of the outer groove 10.

[0131] The control unit 20 acquires sensor values ​​from a vibration sensor (not shown) equipped in the washing machine 100. During the spin-drying process, if the vibration amplitude of the outer tub 10 detected by the vibration sensor exceeds a preset threshold due to an imbalance of the clothes placed in the drum, the spin-drying process is paused, and the drum 14 is rotated clockwise and counterclockwise to correct the imbalance of the clothes, and then the spin-drying process is repeated. When the motor 113 is driven, the drum 14 is driven to rotate in both clockwise and counterclockwise directions.

[0132] The inner circumferential surface of the drum 14 includes: a plurality of dewatering holes 14a for draining washing water from the drum to the outer tub 10; and a plurality of baffles 15, which are spaced apart in the circumferential direction of the drum 14 for lifting clothes placed inside the drum. The baffles 15 are configured to extend in the front-rear direction of the drum 14.

[0133] The opening of the outer tank 10 and the inlet of the outer casing 11 are connected by a bellows 16 that is easily expandable and contractible in the front-to-back direction. The bellows 16 is formed by an annular elastic member and seals the roller 14 with water by closing the door 12. In addition, the inlet of the outer casing 11, the opening of the outer tank 10, and the opening of the roller 14 are connected, and by opening the door 12, clothes can be put into and taken out of the roller 14.

[0134] like Figure 2 As shown, a water supply unit 30 is provided at the upper part of the outer casing 11 and at the front of the water supply hose connection port (not shown), and this water supply unit 30 is equipped with a water supply valve 31. Furthermore, depending on the model manufactured, the washing machine 100 is equipped with either a manually operated type (manually operated only) water supply unit 30A (manually operated water supply unit) which has only the function of manually adding detergent and fabric softener, or an automatically operated type water supply unit 30B (automatic water supply unit) which has both the function of automatically adding detergent and fabric softener and the function of manually adding detergent and fabric softener. Details of the water supply units 30A and 30B will be described later.

[0135] Additionally, a drying unit 140 for drying clothes is provided on the upper part of the outer casing 11 (outer groove 10). The drying unit 140 includes: a heating section 141 equipped with a heater for heating air; and a fan 142 for supplying air to the heating section 141.

[0136] In this embodiment, the control unit 20, the drying unit 140, and the water supply unit 30 extend along the front-rear direction of the outer casing 11. In addition, the control unit 20, the drying unit 140, and the water supply unit 30 are arranged side by side in the left-right direction.

[0137] During washing, when the water supply valve 31 is opened, water flows in from the water supply hose connection port and is supplied to the outer tank 10 via the water supply unit 30. Detergent is pre-added to the water supply unit 30 and is added to the outer tank 10 along with the supplied water. Similarly, during rinsing, fabric softener is added to the outer tank 10 along with the supplied water from the water supply unit 30.

[0138] Figure 11 This is a perspective view showing the internal structure of a front-loading washing machine with the outer casing disassembled. Furthermore, Figure 11 This indicates that, in addition to the outer casing, the control unit 20, drying unit 140, etc., have also been disassembled.

[0139] like Figure 11 As shown, a water supply unit 30 is provided on the upper left side of the outer tank 10 to supply liquids containing water, detergent, fabric softener, etc. to the outer tank 10. Furthermore, the outlet of the water supply unit 30 is connected to the outer tank 10 via a supply pipe 35. The supply pipe 35 is provided with a water seal bend 35a and a rubber corrugated pipe 35b.

[0140] Next, refer to Figures 12 to 25 A front-loading washing machine equipped with a manually operated water supply unit 30A will be described.

[0141] Figure 12 It is an exploded 3D view of the manually activated water supply unit.

[0142] like Figure 12 As shown, the water supply unit 30A (manually operated water supply unit) includes a detergent dispenser 40A (manually operated detergent dispenser), a detergent tank 55 (manually operated detergent tank), and a spray box 60A (first manually operated water supply box), and is made of resin, for example.

[0143] The detergent dispenser 40A is configured to be pull-out in the front-rear direction relative to the detergent tank 55. The spray box 60A is mounted on the upper part of the detergent tank 55 and is configured to supply detergent like a shower from the upper surface of the detergent dispenser 40A. An outer groove 10 (see reference) is formed behind the bottom surface of the detergent tank 55. Figure 11 The outlet 50a is connected to the inside of the outlet. The aforementioned supply pipe 35 (see reference) is connected to this outlet 50a. Figure 11 ).

[0144] The detergent dispenser 40A passes through the front surface opening 50b, which is an opening on the front surface of the detergent tank 55, and is installed inside the detergent tank 55. The detergent dispenser 40A also includes a door 40a that closes the front surface opening 50b of the detergent tank 55, and a tray 40b extending rearward from the rear surface of the door 40a as a portion for dispensing detergent or similar items. A not shown area (for inserting a finger) is formed on the front surface of the door 40a. A pair of flange-shaped guides 40c, 40c extending in the front-rear direction are formed on the upper left and right sides of the tray 40b. The detergent dispenser 40A is supported between the detergent tank 55 and the spray box 60A by the guides 40c, 40c.

[0145] In the tray portion 40b of the detergent dispenser 40A, a detergent dispensing chamber 43 for main washing (hereinafter referred to as the main washing detergent dispensing chamber), a detergent dispensing chamber 44 for pre-washing (pre-wash) (hereinafter referred to as the pre-wash detergent dispensing chamber), and a fabric softener dispensing chamber 45, which are separately provided from the main washing detergent dispensing chamber 43, are formed in parallel from the depth side toward the front side in the extraction direction (front-back direction) of the detergent dispenser 40A.

[0146] The main wash detergent dispenser 43 is for dispensing the detergent used in the main wash (in this case, powder detergent, the same applies hereinafter). The pre-wash detergent dispenser 44 is for dispensing the detergent used in the pre-wash if a pre-wash program has been selected. The fabric softener dispenser 45 is for dispensing the fabric softener (liquid) used in the final rinse to soften the laundry.

[0147] The main washing detergent inlet chamber 43 and the pre-wash detergent inlet chamber 44 are box-shaped with openings at the top and depth sides, and their bottom surfaces are sloping surfaces that are higher near the front and lower at the depth sides. Foreign object prevention barriers 43c and 44c are respectively provided on the depth side end edges 43a and 44a of the main washing detergent inlet chamber 43 and the pre-wash detergent inlet chamber 44, slightly closer to the front, where detergent and water flow out.

[0148] The fabric softener dispensing chamber 45 is box-shaped with an opening at the top. Furthermore, the fabric softener dispensing chamber 45 is shorter in length in the front-to-back direction than the main wash detergent dispensing chamber 43 and the pre-wash detergent dispensing chamber 44. Additionally, a siphon 46 is provided in the fabric softener dispensing chamber 45. This siphon 46 consists of a siphon pipe 46a erected on the bottom surface and a siphon cap 46b covering the siphon pipe 46a. Liquid containing fabric softener and water dispensed into the fabric softener dispensing chamber 45 flows out into the detergent tank 55 through the gap (not shown) between the siphon pipe 46a and the siphon cap 46b.

[0149] Figure 13 This is a floor plan of the detergent dispenser in the manually operated water supply unit. Figure 14 This is a three-dimensional view showing the inside of the detergent dispenser in a manually operated water supply unit. Figure 15 This is a rear view of the detergent dispenser in the manually operated water supply unit.

[0150] like Figure 13 As shown, the fabric softener dispensing chamber 45 is formed in a width direction orthogonal to the extraction direction (front-to-back direction) of the detergent dispenser 40A between the main wash detergent dispensing chamber 43 located on the left and the pre-wash detergent dispensing chamber 44 located on the right. With this configuration, as described later, the water supply valve 31 (see reference...) Figure 11 The two solenoid valves 31a and 31b in the (refer to) Figure 11 It can switch the water supply to three directions: the main washing detergent inlet chamber 43, the pre-wash detergent inlet chamber 44, and the fabric softener inlet chamber 45.

[0151] The front edge 45a of the fabric softener dispensing chamber 45 is located closer to the depth side than the front edge 43b of the main wash detergent dispensing chamber 43 and the front edge 44b of the pre-wash detergent dispensing chamber 44. Furthermore, in the detergent dispenser 40A, a partition wall 47 is formed extending from the outer surface of the front edge wall of the fabric softener dispensing chamber 45 towards the front, dividing the front side of the main wash detergent dispensing chamber 43 and the front side of the pre-wash detergent dispensing chamber 44. Additionally, the depth edge 45b of the fabric softener dispensing chamber 45 is located closer to the front side than the depth edge 43a of the main wash detergent dispensing chamber 43 and the depth edge 44a of the pre-wash detergent dispensing chamber 44.

[0152] With this configuration, compared to the case where the near-front edges of the main wash detergent inlet chamber 43, the pre-wash detergent inlet chamber 44, and the fabric softener inlet chamber 45 are aligned in approximately the same way, it is possible to ensure that the near-front opening width W1 of the main wash detergent inlet chamber 43 and the near-front opening width W2 of the pre-wash detergent inlet chamber 44 are wider. Furthermore, by having the partition wall 47 extend from the outer surface of the near-front end wall of the fabric softener inlet chamber 45 toward the near-front side, it is possible to achieve a balanced and effective increase in both opening widths W1 and W2.

[0153] Furthermore, the depth-side edge 43a of the main washing detergent inlet chamber 43 is formed to be narrower than the width W3 of the near-front flow path. Additionally, the depth-side edge 44a of the pre-wash detergent inlet chamber 44 is formed to be narrower than the width W4 of the near-front flow path. Furthermore, the depth-side edge 44a of the pre-wash detergent inlet chamber 44 is formed such that the flow path is inclined towards the main washing detergent inlet chamber 43. That is, the flow path of the depth-side edge 44a of the pre-wash detergent inlet chamber 44 is formed towards the outlet 50a (see reference). Figure 12 )side.

[0154] like Figure 14 As shown, the detergent dispenser 40A is formed such that the bottom surface 43d of the main wash detergent dispensing chamber 43 is higher than the bottom surface 44d of the pre-wash detergent dispensing chamber 44. In other words, the main wash detergent dispensing chamber 43 is formed to be deeper than the pre-wash detergent dispensing chamber 44.

[0155] like Figure 15 As shown, a fabric softener receiving section 48 extending in the front-to-back direction (orthogonal to the paper surface) is formed below the fabric softener dispensing chamber 45 in the detergent dispenser 40A. This fabric softener receiving section 48 has a concave flow path, extending rearward from its lower portion. Thus, liquid containing fabric softener and water, flowing from the fabric softener dispensing chamber 45 via the siphon 46, flows through the fabric softener receiving section 48 from the detergent dispenser 40A into the detergent tank 55. Therefore, by flowing into the detergent tank 55 near the outlet 50a, fabric softener residue can be suppressed.

[0156] return Figure 12 The detergent tank 55 has the following functions: receiving water containing detergent or fabric softener flowing from the detergent dispenser 40A and conveying it to the outer tank 10. Additionally, the detergent tank 55 has an upper surface opening 50c that is entirely open on its upper surface. The spray box 60A is mounted on the upper side of the detergent tank 55 in a manner that covers the entire upper surface opening 50c. At this time, multiple claws 50d provided on the left and right outer sides of the upper part of the detergent tank 55 engage with multiple engaging holes 60a provided on the left and right outer sides of the spray box 60A, and the spray box 60A is fixed to the detergent tank 55 by threaded components (not shown). Furthermore, the detergent tank 55 and the spray box 60A are fixed to the outer casing 11 (see reference) by structural components (not shown). Figure 2 ).

[0157] The detergent tank 55 has a bottom surface 56 forming the bottom surface, a left side surface 57 rising from the left edge of the bottom surface 56, a right side surface 58 rising from the right edge of the bottom surface 56, and a rear surface 54 rising from the rear edge of the bottom surface 56.

[0158] Figure 16 This is a 3D view of the detergent tank in the manually operated water supply unit. Figure 17 This is a floor plan of the detergent tank in the manually operated water supply unit. Figure 18 This is a front view of the detergent tank in the manually operated water supply unit. Figure 19 This is a rear view of the detergent tank in the manually operated water supply unit. Figure 20 This is a side view of the detergent tank in the manually operated water supply unit.

[0159] like Figure 16As shown, the bottom surface 56 of the detergent tank 55 has an inclined surface that slopes down from the near-front side towards the depth side. Furthermore, the detergent tank 55 has a stepped portion 56b that rises one level from the bottom surface 56 towards the right side surface 58. This stepped portion 56b extends in the front-rear direction, and is configured such that, midway along the front-rear direction, the depth side is wider than the near-front side. Additionally, the upper surface 56c of the stepped portion 56b slopes from the right end towards the left, allowing liquid to flow towards the outlet 50a.

[0160] like Figure 17 As shown, on the bottom surface 56 of the detergent tank 55, a guide flow path 56d is formed from the center in the front-to-back direction toward the depth side, guiding liquid from the near-front side to the outlet 50a. This guide flow path 56d is formed by protrusions 56e, 56f, and 56g that protrude from the bottom surface 56.

[0161] Additionally, two ribs 56h and 56i are formed on the bottom surface 56 of the detergent tank 55, guiding liquid from the near-front right side of the detergent tank 55 toward the depth side. These ribs 56h and 56i are formed to extend from the right side toward the left side and bend toward the guide flow path 56d.

[0162] like Figure 18 As shown, the bottom surface 56 of the detergent tank 55 is designed to prevent contact with the outer tank 10 (see reference). Figure 10 The bottom surface is obliquely cut due to interference from the front, so when viewed from the front, the right side is shallower and the left side is deeper.

[0163] like Figure 19 As shown, through holes 54a and 54b for inserting automatic dispensing pipes are formed on the rear surface 54 of the detergent tank 55. However, through holes 54a and 54b are not used in the manually operated water supply unit 30A.

[0164] like Figure 20 As shown, the bottom surface 56 of the detergent tank 55 slopes downward from the front side toward the depth side. Additionally, a stepped portion 56b is formed (see reference...). Figure 16 A depression 56j is formed at the position.

[0165] On the left depth side (depth side perpendicular to the paper surface) of the bottom surface 56, where the bottom surface 56 of the detergent tank 55 is at its lowest point, a supply pipe 35 is formed, which has an outlet 50a (see reference). Figure 12 ).

[0166] With this structure, even when the detergent dispenser 40A is pulled out and the detergent falls onto the bottom surface 56 near the front of the detergent tank 55, the supplied water is transported along the inclined surface 56a to the bottom surface of the front of the detergent tank 55 and then, together with the detergent, is transported along the inclined surface 56a toward the outlet 50a. Therefore, the fallen detergent is prevented from remaining at that location and accumulating.

[0167] return Figure 12 The spray box 60A is configured to include: a thin, box-shaped main body 61A having a bottom wall 61c with spray holes 65a, 66a, and 67a; and a plate-shaped spray box cover 62A (refer to the double-dotted line) covering the upper side of the main body 61A. Furthermore, the main body 61A has a thin, box-shaped water supply chamber 63 and an inflow portion 64 extending from the depth side of the water supply chamber 63 toward the near-front side and integrally formed with the water supply chamber 63.

[0168] The inlet section 64 has a flow path 64a supplying water to the main washing water supply chamber 65 and a flow path 64b supplying water to the pre-washing water supply chamber 66 at its left depth end. Flow paths 64a and 64b are formed by internal ribs rising from the bottom surface, thus forming two flow paths. Inlet ports 64c and 64d are formed in each flow path 64a and 64b. Solenoid valves 31a and 31b (see reference) are connected to inlet ports 64c and 64d via flexible hoses (not shown). Figure 11 ).

[0169] The interior of the water supply room 63 is divided into three rooms by a partition, including a main washing water supply room 65, a pre-washing water supply room 66, and a fabric softener water supply room 67.

[0170] The main washing water supply chamber 65 is formed on the left side of the spray box 60A and above the main washing detergent inlet chamber 43 of the detergent box 40A, and has multiple spray holes 65a formed on its bottom surface.

[0171] A pre-wash water supply chamber 66 is formed on the right side of the spray box 60A and above the pre-wash detergent injection chamber 44 of the detergent box 40A, and a plurality of spray holes 66a are formed on the bottom surface.

[0172] The fabric softener supply chamber 67 is formed near the center of the spray box 60A in the width direction and is located above the fabric softener inlet chamber 45 of the detergent box 40A, and has multiple spray holes 67a formed on its bottom surface.

[0173] Figure 21 This is a top view of the main body of the spray box of the manually operated water supply unit.

[0174] like Figure 21 As shown, the flow path 64a of the inlet section 64 has: a first flow path 64a1 that extends forward relatively shortly from the inlet 64c; a second flow path 64a2 that extends from the left side toward the right end side at the front end of the first flow path 64a1; and a third flow path 64a3 that extends obliquely from the right end of the second flow path 64a2 in a manner that approaches the center side of the main body section 61A in the left-right direction as it moves forward in the front-back direction.

[0175] In addition, the flow path 64b of the inlet section 64 has: a first flow path 64b1 that extends forward from the inlet 64d at the same level as the first flow path 64a1; a second flow path 64b2 that extends shorter from the left to the right at the front end of the first flow path 64b1; and a third flow path 64b3 that extends obliquely from the right end of the second flow path 64b2 and approaches the center side of the main body section 61A from the left side in the left-right direction as it moves forward in the front-back direction.

[0176] Therefore, the front ends of the third flow path 64a3 and the third flow path 64b3 are arranged in a close proximity. A tolerance water supply chamber 68 (tolerance water supply section) is formed at the front ends of the third flow path 64a3 and the third flow path 64b3. This tolerance water supply chamber 68 allows water supplied through both flow path 64a and flow path 64b to pass through. Furthermore, rectangular through holes 69, 69 extending vertically (perpendicular to the paper's surface) are formed on the left and right sides of the tolerance water supply chamber 68. Water falling through the through holes 69 flows out into the detergent tank 55.

[0177] The main washing water supply chamber 65 includes: a first flow path 65b, which is formed opposite to the third flow path 64a3 across the tolerance water supply chamber 68; a second flow path 65c, which extends from the first flow path 65b to the front end; a third flow path 65d, which extends by bending to the left and then turning back at the front end of the second flow path 65c; and a fourth flow path 65e, which extends by bending to the right and then turning back at the front end of the second flow path 65c. The fourth flow path 65e is formed such that its length in the front-to-back direction is shorter than that of the third flow path 65d. In addition, a plurality of spray holes 65a are formed near the front end of the second flow path 65c, the third flow path 65d, and the fourth flow path 65e (see reference). Figure 12 ).

[0178] The pre-washing water supply chamber 66 includes: a first flow path 66b, located opposite the third flow path 64b3 across the tolerance water supply chamber 68; a second flow path 66c, extending from the first flow path 66b to the front end; a third flow path 66d, extending in a manner that bends to the right and then turns back at the front end of the second flow path 66c; and a fourth flow path 66e, extending in a manner that bends to the left and then turns back at the front end of the second flow path 66c. The fourth flow path 66e is shorter in length in the front-to-back direction than the third flow path 66d. Furthermore, the third flow path 66d is longer than the second flow path 65c. Additionally, multiple spray holes 66a are formed near the front ends of the second flow path 66c, the third flow path 66d, and the fourth flow path 66e. Additionally, spray holes 66a are formed near the rear end of the third flow path 66d.

[0179] The fabric softener supply chamber 67 is configured with an inlet 67b formed between the first flow path 65b and the first flow path 66b, and flow paths 67c, 67c arranged on the left and right sides near the front of the inlet 67b. Furthermore, a plurality of spray holes 67a are formed near the front of each flow path 67c. Additionally, the inlet 67b is narrower than the width of the two flow paths 67c.

[0180] Figure 22 This is a magnified view of a spray box in a manually operated water supply unit.

[0181] like Figure 22 As shown, in the main body 61A of the spray box 60A, if the front-to-back length of the third flow paths 64a3 and 64b3 is set as 'a', and the front-to-back length of the tolerance water supply chamber 68 is set as 'b', then the length a is set to be approximately twice the length b. Therefore, if the tilt angle of the third flow path 64a3 relative to the front-to-back direction O1 is set as θ1, the tilt angle θ1 can be reduced compared to the case where the lengths a and b are approximately the same length, or compared to the case where the length a is shorter than the length b. The tilt angle θ1 is, for example, 30° or more and 35° or less (30 to 35°).

[0182] Furthermore, if the tilt angle of the third flow path 64b3 relative to the forward / backward direction O1 is set to θ2, the tilt angle θ2 can be reduced compared to the case where the length dimensions a and b are approximately the same length, or compared to the case where the length dimension a is shorter than the length dimension b. The tilt angle θ2 is, for example, 30° or more and 35° or less (30 to 35°).

[0183] Furthermore, by setting the tilt angles θ1 and θ2 to the same angle, it is easy to control the supply of water to the fabric softener supply chamber 67.

[0184] like Figure 21 As shown, when solenoid valve 31a (refer to...) Figure 11 When the solenoid valve 31a is turned on, water supplied from the water supply hose connection port through the solenoid valve 31a flows from the inlet 64c into the flow path 64a of the inlet section 64, and then flows out in the P direction, supplying water to the main washing water supply chamber 65. Additionally, when the solenoid valve 31b (refer to...) ... Figure 11When the solenoid valve 31a is turned on (opened), water supplied from the water supply hose connection port through the solenoid valve 31b flows from the inlet 64d into the flow path 64b of the inlet section 64, and then exits in the Q direction, being delivered to the pre-wash water supply chamber 66. On the other hand, when both solenoid valves 31a and 31b are turned on (opened) simultaneously, water supplied from the water supply hose connection port through the two solenoid valves 31a and 31b flows from the inlet 64c and 64d into the flow paths 64a and 64b respectively, and then exits simultaneously in the P and Q directions. The collision of the two valves changes the flow direction to the R direction (forward), which is equivalent to the middle of the P and Q directions, thereby delivering the water to the fabric softener water supply chamber 67. In this way, the water supply in three directions can be switched using two solenoid valves 31a and 31b.

[0185] Furthermore, if water remains in the spray box 60A when the water supply is stopped, mold may grow inside the spray box 60A after a period of time. As a countermeasure, grooves 65m, 66m, and 67m are formed on the upper surface of the bottom wall 61c of the spray box 60A, connecting at least two of the plurality of spray holes 65a, 66a, and 67a. In this embodiment, all spray holes 65a are connected by grooves 65m, all spray holes 66a are connected by grooves 66m, and all spray holes 67a are connected by grooves 67m.

[0186] If configured this way, the water remaining in the spray box 60A flows into the grooves 65m, 66m, and 67m, and condenses due to surface tension, then drains out from the spray holes 65a, 66a, and 67a connected to the grooves 65m, 66m, and 67m. This reduces the amount of residual water in the spray box 60A and inhibits the growth of mold within it.

[0187] Furthermore, the inner diameter R1 of the plurality of sprinkling holes 67a formed in the groove 67m is larger than the inner diameters R2 and R3 of the sprinkling holes 65a and 66a. This allows condensed water to easily fall from the sprinkling holes 67a due to its own weight. In addition, the bottom wall of the fabric softener supply chamber 67 has an inclined surface relative to the horizontal plane, thereby reducing the amount of residual water in the fabric softener supply chamber 67.

[0188] Figure 23 This is a perspective view showing the detergent dispenser being pulled out of a manually operated water supply unit. Furthermore, in Figure 23 The illustration of the spray box cover 62A of the spray box 60A is omitted in the text.

[0189] like Figure 23 As shown, the upper part of the detergent tank 55 is covered by the spray box 60A, and is configured such that the detergent box 40 can be freely pulled out from the front surface opening 50b of the detergent tank 55 in the front-back direction. Figure 23This is the state where the detergent dispenser 40A is fully extended. The main wash detergent dispensing chamber 43 and the pre-wash detergent dispensing chamber 44 are extended to positions where detergent can be dispensed, and the fabric softener dispensing chamber 45 is extended to positions where fabric softener can be dispensed. Furthermore, although not shown, a limiting component provided on the detergent dispenser 40A prevents it from being extended further than the specified position. Figure 23 The position shown is close to the front, which prevents the detergent dispenser 40A from falling off.

[0190] Furthermore, the detergent dispenser 40A is pulled out from the detergent tank 55 to the position of the foreign object passage prevention bars 43c and 44c. Therefore, even if a foreign object is caught on the foreign object passage prevention bars 43c and 44c, it is easier to remove the foreign object than if the foreign object passage prevention bars 43c and 44c are inside the detergent tank 55.

[0191] Figure 24 It is a 3D view showing the detergent dispenser being stored in a manually operated water supply unit. Figure 25 This is a floor plan showing the detergent dispenser stored in a manually operated water supply unit. Furthermore, Figure 24 and Figure 25 This is the state of the spray box 60A being removed from the detergent tank 55.

[0192] like Figure 24 As shown, the detergent dispenser 40A is formed with a shorter length than the detergent tank 55 in the front-to-back direction. Therefore, when the detergent dispenser 40A is stored, the depth-side edge 43a, 44a of the detergent dispenser 40A is located near the front of the flow outlet 50a. Thus, water containing detergent and water containing fabric softener flow into the guide path 56d on the bottom surface 56.

[0193] Furthermore, the upper part of the inner wall of the left side 57 is configured with a step-shaped support 52a extending in the front-rear direction, and a guide 40c for the left side of the detergent dispenser 40A is also formed thereon. Similarly, the upper part of the inner wall of the right side 58 is configured with a step-shaped support 58a extending in the front-rear direction (see reference). Figure 16 The guide member 40c on the right side of the detergent dispenser 40A is placed thereon. Thus, it is supported with a gap between the lower surface of the detergent dispenser 40A and the bottom surface 56 of the detergent tank 55, and can slide in the front-back direction.

[0194] like Figure 25As shown, the detergent liquid for the main wash flows out from the deep end edge 43a of the main wash detergent inlet chamber 43, flows into the guide flow path 56d, and flows into the outlet 50a. The detergent liquid for the pre-wash flows out from the deep end edge 44a of the pre-wash detergent inlet chamber 44, falls onto the step portion 56b, flows along the slope of the step portion 56b through the guide flow path 56d, and flows into the outlet 50a. The liquid flowing out from the bottom of the fabric softener inlet chamber 45 flows rearward on the fabric softener receiving portion 48, flows out towards the guide flow path 56d, and flows into the outlet 50a.

[0195] Next, the function of the washing machine 100 equipped with the water supply unit 30A will be explained.

[0196] During washing, when the user first grasps the operating part of the door 40a of the detergent dispenser 40A and pulls it towards the front, the tray part 40b of the detergent dispenser 40A is pulled out from the opening 50b on the front surface of the detergent tank 55 (see reference). Figure 23 ).

[0197] Next, the user adds detergent to the main wash detergent compartment 43. If a pre-wash program is selected, the user also adds detergent to the pre-wash detergent compartment 44. The pre-wash process will be explained below. In addition, bleach is added as needed, besides detergent. Furthermore, the user adds fabric softener to the fabric softener compartment 45. When the detergent and fabric softener have been added, the user pushes the door 40a of the detergent dispenser 40A into the depth side, storing the tray 40b inside the detergent tank 55.

[0198] When the washing process begins, a pre-wash is performed first. That is, solenoid valve 31b (refer to...) Figure 11 (Open) The water supply hose connection is activated, and water from the connection port is transported in the spray box 60A in the Q direction, flowing into the pre-washing water supply chamber 66 (refer to...). Figure 21 Water flows downwards from multiple spray holes 66a in the bottom wall of the pre-wash water supply chamber 66 into the pre-wash detergent injection chamber 44 of the detergent box 40A, spraying water evenly so that the detergent in this chamber flows into the detergent tank 55. Then, the water and detergent pass through the outlet 50a of the detergent tank 55, through the supply pipe 35, and through the water seal bend 35a (see reference). Figure 11 The water is supplied from the water inlet (not shown) of the outer tank 10 into the outer tank 10.

[0199] Liquid containing water, detergent, bleach, etc., flowing out from the outlet of the water seal bend 35a is directly introduced into the lower part of the outer tank 10 through the water supply port formed on the bottom wall of the outer tank 10. Therefore, the liquid will not flow into the drum 14. This prevents the high concentration of detergent and bleach liquid (undiluted) from directly contacting the laundry and causing color fading or uneven coloring.

[0200] When water is supplied to the outer tub 10 to the predetermined water level and washing water is stored, the washing machine 100 causes the drum 14 to rotate via the motor 113 to begin the pre-washing of the laundry.

[0201] When the pre-wash is finished, the washing machine 100 opens the drain valve (not shown) to drain the washing water in the outer tub 10 and causes the drum 14 to rotate for centrifugal dehydration.

[0202] Next, the main wash is performed. Specifically, solenoid valve 31a (refer to...) Figure 11 (Open) The water supply hose connection is activated, and water from the connection point is transported in the spray box 60A towards direction P, flowing into the main washing water supply chamber 65 (refer to...). Figure 21 Water flows downwards from multiple spray holes 65a in the bottom wall of the main washing water supply chamber 65 into the main washing detergent injection chamber 43 of the detergent box 40A, and is evenly sprayed, so that the detergent in this chamber flows into the detergent tank 55. Then, water and detergent pass through the outlet 50a of the detergent tank 55, through the supply pipe 35, through the water seal bend 35a, and are supplied from the water inlet of the outer tank 10 into the outer tank 10.

[0203] When water is supplied to the outer tub 10 to the predetermined level and washing water is stored, the washing machine 100 uses the motor 113 to rotate the drum 14, starting the main wash of the laundry. When the main wash ends, the washing machine 100 opens the drain valve (not shown) to drain the washing water from the outer tub 10, and rotates the drum 14 for centrifugal dehydration. The functions of the main wash and the subsequent dehydration are largely the same as those of the pre-wash and the subsequent dehydration described above.

[0204] Next, the rinsing process is carried out. First, for example, solenoid valve 31a is turned on (opened), and water from the water supply hose connection port is supplied to the outer tank 10 through the main wash detergent inlet chamber 43 of detergent dispenser 40A and detergent tank 55. At this time, the detergent in the main wash detergent inlet chamber 43 has already flowed out and is no longer present.

[0205] When water is supplied to the outer tub 10 to the predetermined water level and washing water is stored, the washing machine 100 uses the motor 113 to rotate the drum 14 and begin rinsing the laundry. Rinsing is usually performed 2 to 3 times.

[0206] Furthermore, during the final rinse, solenoid valves 31a and 31b are simultaneously activated (opened), and water from the water supply hose connection is transported in the R direction within the spray box 60A, flowing into the fabric softener supply chamber 67 (see reference). Figure 21 Here, when solenoid valves 31a and 31b are simultaneously turned on (opened), the water sprayed in the P direction and the water sprayed in the Q direction collide, causing the flow direction to change to the R direction (forward). In this case, even if the water flows slightly in the P or Q direction, no problem will occur because the detergent in the main washing detergent inlet chamber 43 and the pre-wash detergent inlet chamber 44 has already flowed out with the water.

[0207] Water flows downwards from multiple spray holes 67a in the bottom wall of the fabric softener supply chamber 67 to the fabric softener dispensing chamber 45 in the detergent dispenser 40A, and is evenly sprayed. By diluting the fabric softener contained in the fabric softener dispensing chamber 45 with water and raising the water level, water and fabric softener flow together from the siphon pipe 46a of the siphon 46 into the detergent tank 55 through a siphon. Then, water and fabric softener are supplied together through the outlet 50a of the detergent tank 55, through the supply pipe 35, through the water seal bend 35a, and from the water inlet of the outer tank 10 into the outer tank 10.

[0208] When the rinsing process is finished, the washing machine 100 drains the washing water from the outer tub 10, causing the drum 14 to rotate and centrifuge to dehydrate, thus ending the washing process.

[0209] In addition, after washing, the water remaining in the spray box 60A is discharged from the spray holes 65a and 66a through the grooves 65m and 66m, thus reducing the amount of residual water in the spray box 60A and inhibiting the growth of mold.

[0210] Next, refer to Figures 26 to 36 The following describes a drum-type washing machine (washing machine) 100 equipped with a water supply unit 30B (automatic water supply unit).

[0211] Figure 26 This is an exploded 3D view of the automatic water supply unit.

[0212] like Figure 26 As shown, the water supply unit 30B (automatic dispensing water supply unit) includes a detergent dispenser 40B, a detergent tank 55, and a spray box 60B (second manual dispensing water supply box), and is made of resin, for example. Thus, the detergent tank 55 of the water supply unit 30B is shared with the detergent tank 55 of the water supply unit 30A. In other words, the detergent tank 55 of the water supply unit 30B is identical to the detergent tank 55 of the water supply unit 30A. Furthermore, "identical" means identical in shape and formed using the same mold and resin.

[0213] The detergent dispenser 40B is configured to be able to be pulled out in the front-back direction relative to the detergent tank 55.

[0214] The spray box 60B is installed on the upper part of the detergent tank 55, configured to supply water to the upper surface of the detergent tank 40B like a shower. In addition, the spray box 60B is configured to include: a thin box-shaped main body 91, which has a bottom wall 91a with spray holes 92a and 93a; and a plate-shaped spray box cover 92 (refer to the double-dotted line), which covers the upper side of the main body 91.

[0215] Additionally, the spray box 60B has a thin, box-shaped water supply chamber 94. The water supply chamber 94 has two flow paths 94a and 94b extending from the left depth side end towards the front. The flow paths 94a and 94b are formed by ribs erected from the bottom wall 91a. The flow paths 94a and 94b have water inlets 94c and 94d formed at the left depth side end. Solenoid valves 31a and 31b (see reference) are connected to the inlets 94c and 94d. Figure 11 ).

[0216] Furthermore, multiple claws 50d located on the upper left and right outer sides of the detergent tank 55 engage with multiple engaging holes 90a located on the left and right outer sides of the spray box 60B. Additionally, the spray box 60B is fixed to the detergent tank 55 by threaded components (not shown). Moreover, the detergent tank 55 and the spray box 60B are fixed to the outer casing 11 (see reference 11) by structural components (not shown). Figure 2 ).

[0217] Figure 27 This is an exploded perspective view of the detergent dispenser in an automatic water supply unit.

[0218] like Figure 27 As shown, the detergent dispenser 40B is configured to have a detergent dispenser body 41 and a detergent dispenser lid 42.

[0219] The detergent dispenser body 41 includes: a detergent container 171 (detergent container section) for pre-containing a predetermined amount of detergent (liquid); a fabric softener container 172 (fabric softener container section) for pre-containing a predetermined amount of fabric softener (liquid); and a detergent dispensing chamber 173 (manual detergent dispensing section) for manually dispensing detergent. The detergent container 171 and the fabric softener container 172 are used as containers for automatic dispensing. Each time a wash (main wash, pre-wash) is performed, an appropriate amount of detergent is drawn from the detergent container 171 by a pump (not shown), and an appropriate amount of fabric softener is drawn from the fabric softener container 172 by a pump (not shown).

[0220] The detergent container 171 is formed by creating a container 171a, which is wide in the left-right direction, a container 71b, which is elongated in the front-back direction, in the center in the left-right direction, and a container 71c, which is deep in the left side, into a room (space).

[0221] The fabric softener compartment 172 is formed to extend along the front-back direction from the right side in the left-right direction. Furthermore, the fabric softener compartment 172 is shallower than the detergent compartment 171. This is because components such as the step portion 56b of the detergent tank 55 protrude below the fabric softener compartment 172, and it is positioned as described above to avoid interference with them. By arranging the fabric softener compartment 172 in this position, it is possible to ensure that a larger amount of detergent, which is used more than fabric softener, can be contained.

[0222] In addition, floats 75a and 75b for detecting the remaining amount of detergent and fabric softener are provided in the detergent compartment 171 and the fabric softener compartment 172. Furthermore, covers 75c and 75d are provided on the floats 75a and 75b to prevent them from flying out. The floats 75a and 75b are supported to move in the vertical direction, and the remaining amount of detergent and fabric softener can be detected by detecting the magnetic force of the magnets provided inside the floats 75a and 75b.

[0223] The detergent dispensing chamber 173 is rectangular in top view and is located closer to the front than the center in the front-to-back direction. Furthermore, the front and right sides of the detergent dispensing chamber 173 are covered by the partition wall of the detergent receiving chamber 171. Additionally, the left side of the detergent dispensing chamber 173 is covered by the left side wall of the detergent dispenser body 41.

[0224] The detergent dispenser lid 42 is a component that covers the upper opening of the detergent dispenser body 41, and is formed into a generally rectangular plate shape. Furthermore, the detergent dispenser lid 42 has: a cover portion 81 that covers the detergent compartment 171 and the fabric softener compartment 172; and a fabric softener dispensing compartment 82 (manual fabric softener dispensing portion) for manually dispensing fabric softener. In this embodiment, the detergent compartment is composed of the detergent compartment 171 and the cover portion 81, and the fabric softener compartment is composed of the fabric softener compartment 172 and the cover portion 81.

[0225] The cover portion 81 has a cutout forming a detergent filling port 81a, which serves as an inlet for filling the detergent container 171 with detergent; and a fabric softener filling port 81b, which serves as an inlet for filling the fabric softener container 172 with fabric softener. The detergent filling port 81a and the fabric softener filling port 81b are rectangular in shape and arranged one behind the other. The detergent filling port 81a and the fabric softener filling port 81b are provided with caps 81c and 81d that can be opened and closed.

[0226] The fabric softener dispensing chamber 82 is formed at a position that overlaps with the detergent dispensing chamber 173 in the vertical direction, and is shaped to be embedded in a portion of the detergent dispensing chamber 173. Additionally, a siphon 83 is provided in the fabric softener dispensing chamber 82. Similar to the siphon 46 described above, the siphon 83 consists of a siphon pipe 83a erected on the bottom surface and a siphon cap 83b covering the siphon pipe 83a. The fabric softener dispensed into the fabric softener dispensing chamber 82 is configured to flow out of the detergent tank 55 along with the supplied water through the gap (not shown) between the siphon pipe 83a and the siphon cap 83b.

[0227] Furthermore, the fabric softener dispensing chamber 82 is not composed of other parts, but is integrally formed with the detergent dispenser lid 42 (cover 81) by resin molding. That is to say, no gaps are formed around the fabric softener dispensing chamber 82 to join with other parts, so fabric softener will not enter the gaps.

[0228] Additionally, an inlet 84 is formed in the cutout of the detergent dispenser lid 42, serving as an entrance for dispensing detergent. This inlet 84 is rectangular in shape and is formed near the front side of the fabric softener dispensing chamber 82, communicating with the detergent dispensing chamber 173.

[0229] Figure 28 This is a three-dimensional view showing the inside of the detergent dispenser in an automatic water supply unit. Figure 29 This is a rear view of the detergent dispenser in an automatic water supply unit.

[0230] like Figure 28 As shown, the detergent dispenser body 41 has an outlet 73a formed at the front end of the detergent dispensing chamber 173, which opens to the outside of the detergent dispenser body 41. The outlet 73a is formed facing rearward.

[0231] like Figure 29 As shown, regarding the detergent dispenser body 41, the bottom surface 172b that constitutes the fabric softener compartment 172 is obliquely cut, and when viewed from the back (rear), the right side is shallower and the left side is deeper.

[0232] Additionally, the detergent dispenser lid 42 has a conduit 85a for removing detergent contained in the detergent compartment 171 and a conduit 85b for removing fabric softener contained in the fabric softener compartment 172. Conduit 85a is L-shaped and extends forward towards the bottom surface of the detergent compartment 171. Similarly, conduit 85b is L-shaped and extends forward towards the bottom surface of the fabric softener compartment 172.

[0233] Figure 30 This is a plan view showing the sprinkler box of the automatically activated water supply unit. Furthermore, Figure 30 This is the state after the spray box cover 92 has been removed from the spray box 60B.

[0234] like Figure 30 As shown, on flow path 94a, at inlet 84 (refer to) when the detergent container 40B is housed. Figure 27 Multiple spray holes 92a are formed at opposite positions. Adjacent spray holes 92a are connected by grooves 92m to inhibit mold growth. Additionally, in the flow path 94b, a fabric softener dispensing chamber (see reference) is located where the detergent dispenser 40B is housed. Figure 27 Multiple water spray holes 93a are formed at opposite positions. Adjacent water spray holes 93a are connected by grooves 93m to inhibit the growth of mold.

[0235] Figure 31 This is a perspective view showing the detergent dispenser being pulled out of an automatic water supply unit. Furthermore, in Figure 31 The illustration of the spray box cover 92 of the spray box 60B is omitted.

[0236] like Figure 31 As shown, the upper part of the detergent tank 55 is covered by the spray box 60B, and the detergent box 40B is configured to be freely pulled out from the front surface opening 50b of the detergent tank 55 in the front-back direction. Figure 31 This is the state where the detergent dispenser 40B is pulled out to its maximum extent, and the lids 81c of the detergent compartment 171, 81d of the fabric softener compartment 172, the inlet 84 of the detergent dispensing chamber 173, and the fabric softener dispensing chamber 82 are exposed. Furthermore, although not shown in the diagram, the detergent dispenser 40B is prevented from being pulled out further than indicated by the limiting component provided thereon. Figure 24 The position shown is closer to the front.

[0237] Figure 32 This is a 3D view showing the detergent dispenser retracted in an automatic water supply unit. Furthermore, Figure 32 This is the state of the spray box 60B removed from the detergent tank 55.

[0238] like Figure 32 As shown, the detergent dispenser 40B differs from the detergent dispenser 40A and is set to the following length: when stored in the detergent tank 55, the rear end of the detergent dispenser 40B abuts against the inner wall of the rear surface 54 of the detergent tank 55.

[0239] Additionally, the guide member 40d on the left side of the detergent dispenser 40B is configured to be mounted on the support portion 52a (see reference). Figure 24 Additionally, the guide member 40d on the right side of the detergent dispenser 40B is configured to be mounted on the support portion 58a (see reference). Figure 25 Thus, the detergent dispenser 40B is supported at a distance from the bottom surface 56 of the detergent tank 55, and can slide in the front-back direction.

[0240] Figure 33 This is a cross-sectional view showing the suction mechanism for detergent in an automatic water supply unit. Furthermore, Figure 33 This is a cross-sectional view taken at position 85a of the pipe, cut along the front-back direction.

[0241] like Figure 33 As shown, a generally L-shaped pipe 85a is integrally formed on the detergent dispenser lid 42 by resin molding. The pipe 85a has a tube portion 85a1 extending in the front-to-back direction and a tube portion 85a2 extending in the vertical direction. In addition, the tube portion 85a2 extends to the bottom surface of the detergent receiving chamber 171.

[0242] The end of the tube 85a1 has a rearward-facing opening 85a3. A suction tube 101 is inserted into the through hole 54a of the detergent tank 55, with its tip protruding into the detergent tank 55. An O-ring (sealing member, not shown) is provided at the tip of the suction tube 101 to prevent leakage when connected to the tube 85a. A suction pump (not shown) is connected to the suction tube 101, and detergent is appropriately drawn from the detergent container 171.

[0243] When the detergent dispenser 40B is pulled forward from the detergent tank 55, the suction tube 101 disengages from the opening 85a3, and the connection between the suction tube 101 and the detergent dispenser 40B is released. Conversely, when the detergent dispenser 40B is returned to its original position after being pulled out of the detergent tank 55, the suction tube 101 is inserted into the opening 85a3 of the pipe 85, and the suction tube 101 is connected to the pipe 85.

[0244] Furthermore, although the illustration is omitted, the pipe 85b on the fabric softener compartment 172 side can also be inserted and removed from the suction tube protruding from the through hole 54b of the detergent tank 55 using the same mechanism as described above. This allows fabric softener to be removed from the fabric softener compartment 172.

[0245] Figure 34 This is a cross-sectional view taken from the side of the detergent dispenser and fabric softener dispenser of the automatic water supply unit.

[0246] like Figure 34 As shown, the bottom surface 73b of the detergent dispensing chamber 173 slopes from the front side towards the depth side (rear). Furthermore, the front side of the bottom surface 73b of the detergent dispensing chamber 173 is formed as a gently curving surface 73c. ​​A gap S1 is formed between the bottom surface 73b and the fabric softener dispensing chamber 82. Additionally, the outlet 73a at the rear end of the bottom surface 73b is located further rearward than the fabric softener dispensing chamber 82. Thus, detergent dispensed from the detergent inlet 84, along with water from the spray nozzles 92a of the spray box 60B, flows rearward on the bottom surface 73b and exits from the outlet 73a into the detergent tank 55.

[0247] Additionally, the fabric softener added to the fabric softener inlet chamber 82, along with water supplied from the spray nozzle 93a of the spray box 60B, falls through a siphon to the bottom surface 73b of the detergent inlet chamber 173. Then, the liquid containing the fabric softener flows out from the outlet 73a of the bottom surface 73b into the detergent tank 55.

[0248] Next, the function of the washing machine 100 equipped with the water supply unit 30B will be explained.

[0249] During washing, the user first grasps the operating part of the door 40a of the detergent dispenser 40B and pulls it towards the front. At this time, the tray part 40b of the detergent dispenser 40A is pulled out from the opening 50b on the front surface of the detergent tank 55 (see reference). Figure 24 Here, if there is detergent remaining in the detergent compartment 171 and fabric softener remaining in the fabric softener compartment 172, the washing process begins without pulling out the detergent dispenser 40B.

[0250] When a pre-wash is selected, a pre-wash is performed first when the washing cycle begins. Specifically, a suction pump (not shown) operates, drawing an appropriate amount of detergent from the detergent container 171 and delivering it to the outer tub 10. Simultaneously with the detergent suction, another solenoid valve is activated (opened), mixing water with the detergent and supplying it into the outer tub 10 through the water inlet (not shown). When the water level in the outer tub 10 reaches a predetermined level and washing water is stored, the washing machine 100 rotates the drum 14 via the motor 113 to begin the pre-wash of the laundry. When the pre-wash is finished, the washing machine 100 opens the drain valve (not shown) to drain the washing water from the outer tub 10 and rotates the drum 14 for centrifugal spin-drying.

[0251] Next, the main wash begins. A suction pump (not shown) operates, drawing an appropriate amount of detergent from the detergent container 171 and delivering it to the outer tub 10. Simultaneously with the detergent suction, another solenoid valve is activated (opened), allowing water to mix with the detergent and be supplied to the outer tub 10 through its water inlet (not shown). When the outer tub 10 is filled with washing water to a predetermined level, the washing machine 100 uses motor 113 to rotate the drum 14, initiating the main wash. At the end of the main wash, the washing machine 100 opens the drain valve (not shown) to drain the washing water from the outer tub 10 and causes the drum 14 to rotate for centrifugal spin-drying.

[0252] Next, the rinsing process begins. First, for example, another solenoid valve is turned on, supplying water from the water supply hose connection port into the outer tub 10. When the outer tub 10 is filled with washing water to the predetermined level, the washing machine 100 rotates the drum 14 via the motor 113 to begin rinsing the laundry. Rinsing is usually performed 2 to 3 times.

[0253] Furthermore, during the final rinse, a suction pump (not shown) operates to draw an appropriate amount of fabric softener from the fabric softener compartment 172. Simultaneously with the draw of fabric softener, another solenoid valve is activated (opened), mixing water and fabric softener and supplying it into the outer tub 10. When the outer tub 10 is filled with washing water to a predetermined level, the washing machine 100 rotates the drum 14 via the motor 113 to begin rinsing the laundry. When the rinsing process is complete, the washing machine 100 drains the washing water from the outer tub 10 and rotates the drum 14 for centrifugal spin-drying, thus ending the washing cycle.

[0254] As described above, the washing machine 100 of this embodiment includes: a housing 11 that houses a washing tub (outer tub 10 and drum 14); and a water supply unit 30 disposed on the housing 11, which dispenses detergent (detergent and fabric softener) into the washing tub. The water supply unit 30 may selectively include a water supply unit 30A for manually dispensing detergent and fabric softener into the washing tub and a water supply unit 30B for automatically dispensing detergent and fabric softener into the washing tub. Water supply unit 30A includes: a detergent dispenser 40A having a pre-wash detergent dispensing chamber 44 for dispensing pre-wash detergent, a main wash detergent dispensing chamber 43 for dispensing main wash detergent, and a fabric softener dispensing chamber 45 disposed between the pre-wash detergent dispensing chamber 44 and the main wash detergent dispensing chamber 43 for dispensing fabric softener; a spray box 60A located above the detergent dispenser 40A and supplying water to the pre-wash detergent dispensing chamber 44, the main wash detergent dispensing chamber 43, and the fabric softener dispensing chamber 45; and a detergent tank 55 that can be pulled out and stored in a front-to-back direction. Water supply unit 30B includes: a detergent dispenser 40B having a detergent receiving chamber 171 for dispensing detergent and a fabric softener receiving chamber 172 for dispensing fabric softener; and a detergent tank 55 that can be pulled out and stored in a front-to-back direction. The detergent tank 55 of water supply unit 30A and water supply unit 30B are shared. This allows for cost reduction by sharing the detergent tank 55, which is a large component. Furthermore, by sharing the detergent tank 55, the length of the spray box 60A in the front-to-back direction of water supply unit 30A can be increased. Therefore, the tilt angles θ1 and θ2 can be made smaller than before, increasing the amount of water introduced into the fabric softener supply chamber 67 and reducing the risk of fabric softener dissolution and residue.

[0255] Furthermore, in this embodiment, the water supply unit 30B includes: a detergent dispensing chamber 173 for manually dispensing detergent; a fabric softener dispensing chamber 82 for manually dispensing fabric softener; and a spray box 60B for supplying water to the detergent dispensing chamber 173 and the fabric softener dispensing chamber 82. Therefore, even if the automatic detergent and fabric softener dispensing function is not operational, detergent and fabric softener can still be dispensed, and washing can be reliably performed.

[0256] In addition, in this embodiment, the spray box 60A includes: a pre-wash water supply section (first flow path 64b1, second flow path 64b2, third flow path 64b3, first flow path 66b, second flow path 66c, third flow path 66d, fourth flow path 66e) that supplies water to the pre-wash detergent injection chamber 44; a main wash water supply section (first flow path 64a1, second flow path 64a2, third flow path 64a3, first flow path 65b, second flow path 65c, third flow path 65d, fourth flow path 65e) that supplies water to the main wash detergent injection chamber 43; a fabric softener water supply chamber 67 that supplies water to the fabric softener injection chamber 45; and a tolerance water supply chamber 68 that creates a tolerance between the water supply direction from the pre-wash water supply section and the water supply direction from the main wash water supply section. When water is supplied to the fabric softener filling chamber 45, the water supplied from the pre-wash water supply section and the water supplied from the main wash water supply section collide, switching the water supply direction to the fabric softener water supply chamber 67. The front-back length 'a' of both the main wash water supply section (extending at an angle relative to the front-back direction) and the pre-wash water supply section (extending at an angle relative to the front-back direction) is formed to be approximately twice as long as the front-back length 'b' of the tolerance water supply chamber 68. This reduces the amount of water supplied that leaves the fabric softener water supply chamber 67, thereby reducing the risk of fabric softener dissolution and residue.

[0257] For example, the inclination angle θ1 of the main wash water supply section (third flow path 64a3) relative to the front-to-back direction is 30 to 35 degrees. Similarly, the inclination angle θ2 of the pre-wash water supply section (third flow path 64b3) relative to the front-to-back direction is 30 to 35 degrees. This allows for appropriate control of the water flow into the main wash water supply section, the pre-wash water supply section, and the fabric softener supply chamber 67.

[0258] Furthermore, in this embodiment, the tilt angles θ1 and θ2 are the same. Therefore, when supplying water to the fabric softener supply chamber 67, water can be supplied in a manner that results in the same water volume, thus making it easy to control the supply of water to the fabric softener supply chamber 67.

[0259] Furthermore, in this embodiment, spray holes 65a, 66a, and 67a are formed in the pre-wash water supply section, the main wash water supply section, and the fabric softener water supply chamber 67, respectively, for spraying water into the pre-wash detergent inlet chamber 44, the main wash detergent inlet chamber 43, and the fabric softener inlet chamber 45. The diameter of the spray hole 67a formed in the fabric softener water supply chamber 67 is larger than the diameter of the spray holes 65a and 66a formed in the pre-wash water supply section and the main wash water supply section. This further reduces the risk of fabric softener residue dissolution.

[0260] The present invention has been described above based on embodiments, but the present invention is not limited to the structures described in the above embodiments. It includes appropriately combining or selecting the structures described in the embodiments, and appropriately changing the structure without departing from its spirit.

[0261] For example, the washing machine 100 with a drying function has been described in the above embodiments, but the present invention is not limited thereto and can also be applied to drum washing machines without a drying function.

[0262] In addition, in the above embodiment, the water supply unit 30B is described as having a detergent dispensing chamber 173 and a fabric softener dispensing chamber 82 in addition to the detergent container 171 and the fabric softener container 172. However, it is also possible to have only the detergent container 171 and the fabric softener container 172 for automatic dispensing, or it is also possible to have only the detergent dispensing chamber 173 in addition to the detergent container 171 and the fabric softener container 172.

[0263] Next, refer to Figure 1 , Figure 2 , Figure 11 , Figures 35 to 3 7. Another embodiment of the present invention (hereinafter referred to as "this embodiment") will be described in detail.

[0264] As prior art, front-loading washing machines with a horizontally arranged drum include a detection device for detecting the water level in the outer tub containing the inner drum (see, for example, Patent Document 1). The water level detection device is installed in the upper rear part inside the outer casing (specifically, in the inner rear part of the upper cover of the outer casing) (see Japanese Patent Application Publication No. 2021-23740). Conventional front-loading washing machines fix the water level sensor, which functions as a water level detection unit, to a water level sensor bracket and secure it with screws. Then, the water level sensor is installed inside the outer casing by suspending the water level sensor bracket in the upper rear part inside the outer casing using hooks.

[0265] However, existing front-loading washing machines use screws to secure the water level sensor, which can lead to screw loss when replacing the sensor and its bracket. Furthermore, replacing the water level sensor and bracket in existing front-loading washing machines requires the user to reach into the upper rear part of the casing. However, this upper rear part of the casing is narrow and located behind the outer tub, making it difficult to reach. Therefore, existing front-loading washing machines are poorly maintainable and tend to increase maintenance time.

[0266] This invention provides a drum washing machine that prevents the loss of screws and other components when replacing the water level sensor and water level sensor bracket, thereby improving maintainability and reducing maintenance time.

[0267] Hereinafter, embodiments of the present invention (hereinafter referred to as "this embodiment") will be described in detail with reference to the accompanying drawings. Furthermore, the drawings are shown only schematically to provide a sufficient understanding of the present invention. Therefore, the present invention is not limited to the examples shown in the drawings. Additionally, in the drawings, common or identical constituent elements are labeled with the same symbols, and their descriptions are omitted.

[0268] <Overall Structure of a Front-Loading Washing Machine>

[0269] The following is for reference Figure 1 , Figure 2 , Figure 35 , Figure 11 The overall structure of the washing machine 100 according to this embodiment will be described. Here, we will assume that the washing machine 100 is a global standard front-loading washing machine. A global standard front-loading washing machine is a washing machine that can be assembled to a washbasin or the like. Figure 1 This is a perspective view of the washing machine 100 according to this embodiment. Figure 2 This is a diagram of the internal structure of washing machine 100. Figure 2 This indicates the internal structure of the washing machine 100 with the top cover 11c and door 12 removed. Figure 35 This is a front view of the internal structure of the washing machine 100. Figure 35 This shows the internal structure as seen from the front of the washing machine 100 with the outer casing 11 removed. Figure 11 This is a 3D diagram of the internal structure of the washing machine 100. Figure 11 This shows the internal structure as seen from the upper left of the washing machine 100 with the outer casing 11 removed.

[0270] like Figure 1 As shown, the washing machine 100 of this embodiment includes a housing 11 and a door 12 mounted on the front surface of the housing 11.

[0271] The housing 11 has a front surface cover 11a, a housing body 11b, and an upper surface cover 11c.

[0272] The door 12 has a door handle 12a on the upper part and an operating part 13 on the front surface.

[0273] like Figure 2 As shown, the washing machine 100 has a drum 14 in the center of the interior of the outer casing 11, a control unit 20 and a water supply unit 30 above the drum 14, and a drying unit 140 extending upward from the side of the drum 14.

[0274] The drum 14 is the container for the laundry. The drum 14 is enclosed within the outer tub 10, which functions as a water tank (see reference). Figure 35 and Figure 11 Inside the drum 14, a baffle 15 is provided for lifting the laundry contained within the drum 14. A freely opening and closing front surface cover 11a is provided on the front surface side of the outer casing 11. Outer tank 10 (see reference) Figure 35 and Figure 11 The front surface portion of the front surface and the front surface cover 11a are sealed by a bellows 16.

[0275] The control unit 20 controls the overall operation of the washing machine 100. The control unit 20 is mounted on a housing 21 positioned above the drum 14. The water supply unit 30 has a water supply valve 31 that controls the water supply. The water supply unit 30 is connected to a water supply mechanism (not shown) via the water supply valve 31. The control unit 20 controls the intake and stop of externally supplied water by controlling the water supply valve 31.

[0276] The drying unit 140 is configured to circulate air between itself and the drum 14 while heating the air. The drying unit 140 has a heating element 141 and a blower fan 142. The drying unit 140 circulates air between itself and the drum 14 by driving the blower fan 142, and heats the air by heating the heating element 141, thereby drying the laundry contained in the drum 14.

[0277] like Figure 35 and Figure 11 As shown, the water supply unit 30 includes a spray box 32, a spray box cover 33, and a detergent dispensing unit 50.

[0278] Spray box 32 is for dispensing detergent into the detergent dispenser 51 (see reference 50) built into the detergent dispensing unit 50. Figure 11 The spray box 32 has a water supply box. The interior of the spray box 32 has a flow path for supplying water to the container of detergent or the like provided in the detergent box 51. The spray box 32 injects water from above into the container of detergent or the like provided in the detergent box 51. A spray box cover 33 is installed on the upper part of the spray box 32, sealing the flow path of the spray box 32.

[0279] The washing machine 100 includes a water level sensor 71 for detecting the water level in the outer tub 10 and a water level sensor bracket 72 for supporting the water level sensor 71. The water level sensor bracket 72 is located between the water supply unit 30 and the outer tub 10, and on the upper front side of the interior of the outer casing 11. The water level sensor 71 is fitted into the water level sensor bracket 72.

[0280] The water level sensor 71 is connected to the pipe 73 connected to the outer tank 10, and detects the water level in the outer tank 10 by measuring the pressure in the pipe 73, which changes according to the change in the water level in the outer tank 10.

[0281] <Structure of the water level sensor bracket>

[0282] The following is for reference Figure 36 , Figure 37A , Figure 37B ,and Figure 37C The overall structure of the water level sensor bracket 72 will be described. Figure 36 This is a structural diagram of the area near the water level sensor 71. Figure 37A , Figure 37B ,and Figure 37C These are, respectively, a 3D view, a top view, and a side view of the water level sensor bracket 72.

[0283] like Figure 36 As shown, the water level sensor bracket 72 is mounted on a mounting portion 30a provided at the lower part of the water supply unit 30. The mounting portion 30a is formed to extend downward from the detergent dispensing portion 50 provided at the lower part of the water supply unit 30. A hook portion 72c for inserting the water level sensor bracket 72 is provided in the mounting portion 30a (see reference). Figures 37A to 37C () through hole.

[0284] like Figures 37A to 37C As shown, the water level sensor bracket 72 has an insertion part 72a, a claw part 72b, and a hook part 72c.

[0285] The insertion part 72a is the insertion part 71a into which the water level sensor 71 is inserted (see reference). Figure 36 ( ) part.

[0286] The claw 72b is a fixing part that engages with the water level sensor 71 to fix the water level sensor 71.

[0287] The hook 72c is a locking part that engages with the through hole provided in the mounting part 30a.

[0288] The water level sensor bracket 72 is installed by inserting the hook 72c into the mounting part 30a (see reference). Figure 36 The water level sensor 71 is mounted on the mounting part 30a through the through hole provided therein. The water level sensor 71 is mounted on the mounting part 30a through the insertion part 71a provided at its lower part (see reference 71a). Figure 36 The insertion part 72a (see reference) is provided in the water level sensor bracket 72. Figures 37A to 37C And installed on the water level sensor bracket 72.

[0289] like Figure 37A As shown, the insertion portion 72a of the water level sensor bracket 72 is annular in shape. Figure 36 As shown, the insertion part 71a of the water level sensor 71 inserted into the insertion part 72a is cylindrical.

[0290] <Main Features of Front-Loading Washing Machines>

[0291] (1) As Figure 11 As shown, the washing machine 100 of this embodiment includes: an outer tub 10 disposed inside the outer casing 11, a drum 14 enclosed in the outer tub 10, a water supply unit 30 for supplying detergent and water to the outer tub 10, a water level sensor 71 for detecting the water level in the outer tub 10, and a water level sensor bracket 72 for supporting the water level sensor 71. The water level sensor bracket 72 is disposed between the water supply unit 30 and the outer tub 10, and at the upper front part inside the outer casing 11. The water level sensor 71 is fitted and mounted to the water level sensor bracket 72.

[0292] The washing machine 100 of this embodiment does not use screws to fix the water level sensor, thus preventing the loss of screws and other parts when replacing the water level sensor and water level sensor bracket. Furthermore, the washing machine 100 of this embodiment has a water level sensor bracket 72 disposed between the water supply unit 30 and the outer tub 10, and on the upper front side of the interior of the outer casing 11. The upper front side of the interior of the outer casing 11 is widened by removing the front cover 11a, ensuring an easy-to-reach area for hand access. Therefore, the washing machine 100 of this embodiment improves maintainability and reduces maintenance time.

[0293] (2) Figure 36 As shown, in this embodiment, the water level sensor bracket 72 of the washing machine 100 is mounted on the mounting portion 30a provided at the lower part of the water supply unit 30. The water level sensor 71 is inserted into the insertion portion 72a (see reference 30a) provided on the water level sensor bracket 72 by inserting the insertion portion 71a provided at its lower part into the insertion portion 72a provided on the water level sensor bracket 72. Figures 37A to 37C And install.

[0294] The washing machine 100 of this embodiment uses the insertion portion 71a of the water level sensor 71 (see reference) Figure 36 The insertion part 72a of the water level sensor bracket 72 (refer to) Figures 37A to 37C The water level sensor 71 can be easily mounted on the water level sensor bracket 72. Therefore, the washing machine 100 of this embodiment can further improve maintainability and reduce maintenance time.

[0295] (3) Figure 37A As shown, the insertion portion 72a of the water level sensor bracket 72 of the washing machine 100 in this embodiment is annular in shape. (As indicated...) Figure 36 As shown, the insertion part 71a of the water level sensor 71 inserted into the insertion part 72a is cylindrical.

[0296] The washing machine 100 of this embodiment allows the cylindrical insertion portion 71a to be easily inserted into the annular insertion portion 72a. Therefore, the washing machine 100 of this embodiment can further improve maintainability and reduce maintenance time.

[0297] (4) Figure 11 and Figure 36 As shown, in this embodiment, the water level sensor 71 of the washing machine 100 is connected to the pipe 73 that communicates with the outer tub 10. The water level sensor 71 detects the water level in the outer tub 10 by measuring the pressure in the pipe 73, which changes according to the change in the water level in the outer tub 10.

[0298] The washing machine 100 of this embodiment can reliably detect the water level in the outer tub 10.

[0299] As described above, the washing machine 100 according to this embodiment can suppress the loss of parts such as screws when replacing the water level sensor and the water level sensor bracket, and can improve maintainability and reduce maintenance time.

[0300] This invention is not limited to the embodiments described above, and includes various modifications. For example, the embodiments described above are examples given in detail for ease of understanding of the invention, and are not limited to having all the structures described. Furthermore, a portion of the structure of the embodiments can be replaced with other structures, and other structures can be added to the structure of the embodiments. Additionally, regarding a portion of each structure, other structures can be added, deleted, or replaced.

[0301] For example, in the above embodiments, the washing machine 100 is described as having a drying unit 140, but the washing machine 100 may be a structure that does not have a drying unit 140, that is, it may be a washing machine that only has a washing function and does not have a drying function.

[0302] Next, refer to Figure 1 , Figure 2 , Figure 10 , Figure 11 , Figures 16 to 20 , Figures 26 to 34 Another embodiment of the present invention (hereinafter referred to as "this embodiment") will be described in detail below.

[0303] As prior art, Chinese Patent Application Publication No. 105463789 describes a detergent dispenser having two automatic dispensing parts for pre-storing detergent and fabric softener, and one manual dispensing part for dispensing detergent.

[0304] However, in the solution described in Patent Document 1, if a manual dispensing unit for dispensing detergent is also desired, a manual dispensing unit for dispensing fabric softener is also desired, which would result in a reduction in the container capacity of the automatic dispensing unit and a decrease in usability.

[0305] This invention provides a washing machine with good usability.

[0306] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0307] Figure 1 This is a perspective view of the drum-type washing machine according to an embodiment of the present invention. Figure 10 This is a cross-sectional view taken from the side, showing the internal structure of a drum-type washing machine according to an embodiment of the present invention. Figure 2 This is a perspective view showing the internal structure of a drum-type washing machine according to an embodiment of the present invention. First, using... Figure 1 , Figure 10 , Figure 2 The structure and operation of the washing machine 100 will be explained. Furthermore, in this embodiment, the horizontal direction when viewing the washing machine 100 from the user's perspective is defined as the left-right direction, the height direction as the up-down direction, and the depth direction as the front-back direction.

[0308] like Figure 1 As shown, the washing machine 100 is a built-in washing machine, comprising a housing 11, a washing tub (outer tub 10 and drum 14, see reference) Figure 10 It consists of a water supply unit 30 (detergent water supply unit).

[0309] The outer casing 11 forms the outline of the washing machine 100. The left and right sides and the back are formed by a single piece of steel plate. It consists of a U-shaped outer casing body 11b when viewed from above, a bottom plate (not shown) disposed below the outer casing body 11b, and a front surface cover 11a covering the front surface of the outer casing body 11b (see reference). Figure 2 It consists of an outer casing 11 and an upper surface cover 11c disposed on the upper part. In addition, a door 12 that can be opened and closed is disposed on the front surface of the outer casing 11.

[0310] Additionally, a water supply hose connection port (not shown) for supplying water from a faucet to the washing machine 100 is provided on the upper back of the outer casing 11. The door 12 is provided on the front cover 11a (see reference). Figure 2 The hinges of the door 12 allow for opening and closing. Additionally, the door 12 is equipped with a door handle 12a. By pulling the door handle 12a forward, the locking mechanism is disengaged, allowing the door to open towards the front. The door 12 can be opened by moving the door handle 12a towards the front surface cover 11a (see reference). Figure 2 It can be locked and closed by pushing.

[0311] The door 12 is equipped with an operation unit 13, which includes operation switches and the like. The operation unit 13 is a glass touchscreen and is connected to the control unit 20 (see reference) located inside the housing 11. Figure 2 Electrical connection.

[0312] like Figure 10 As shown, the front cover 11a and the opening of the outer groove 10 have concentric circular openings for clothing to pass through. A drain hose (not shown) for draining water is installed on the back of the outer casing 11.

[0313] The washing machine 100 has an outer tub 10 for storing water inside the outer casing 11. A drum 14 for accommodating laundry is inserted into the outer tub 10. The outer tub 10 is suspended from the outer casing 11 by springs (not shown) and is suspended from the left and right sides at the center of gravity of the outer tub 10. The lower part of the outer tub 10 is supported by a vibration damping member 112 fixed to the outer casing 11.

[0314] A rotating shaft 4, connected to the roller 14, is located behind the outer groove 10. A pulley 5 is connected to the rotating shaft 4. A motor 113 is connected to the pulley 5 via a belt 6. The motor 113 drives the roller 14 to rotate via the belt 6, pulley 5, and rotating shaft 4. The control unit 20 controls the rotational speed of the motor 113. The rotating shaft 4 connected to the roller 14 is set to horizontal. However, the rotational axis of the roller 14 can be tilted to raise the opening side of the outer groove 10.

[0315] The control unit 20 acquires sensor values ​​from a vibration sensor (not shown) equipped in the washing machine 100. During the spin-drying process, if the vibration amplitude of the outer tub 10 detected by the vibration sensor exceeds a preset threshold due to an imbalance of the clothes placed in the drum, the spin-drying process is paused, and the drum 14 is rotated clockwise and counterclockwise to correct the imbalance of the clothes, and then the spin-drying process is repeated. When the motor 113 is driven, the drum 14 is driven to rotate in both clockwise and counterclockwise directions.

[0316] The inner circumferential surface of the drum 14 includes: a plurality of dewatering holes 14a for draining washing water from the drum to the outer tub 10; and a plurality of baffles 15, which are spaced apart in the circumferential direction of the drum 14 for lifting clothes placed inside the drum. The baffles 15 are configured to extend in the front-rear direction of the drum 14.

[0317] The opening of the outer tank 10 and the inlet of the outer casing 11 are connected by a bellows 16 that is easily expandable and contractible in the front-to-back direction. The bellows 16 is formed by an annular elastic member and seals the roller 14 with water by closing the door 12. In addition, the inlet of the outer casing 11, the opening of the outer tank 10, and the opening of the roller 14 are connected, and by opening the door 12, clothes can be put into and taken out of the roller 14.

[0318] like Figure 2 As shown, a water supply unit 30 is provided at the upper part of the outer casing 11 and in front of the water supply hose connection port (not shown), and the water supply unit 30 is equipped with a water supply valve 31. In addition, a drying unit 140 for drying clothes is provided at the upper part of the outer casing 11 (outer groove 10). The drying unit 140 includes: a heating section 141 equipped with a heater for heating air; and a fan 142 for supplying air to the heating section 141.

[0319] In this embodiment, the control unit 20, the drying unit 140, and the water supply unit 30 extend along the front-rear direction of the outer casing 11. In addition, the control unit 20, the drying unit 140, and the water supply unit 30 are arranged side by side in the left-right direction.

[0320] During washing, when the water supply valve 31 is opened, water flows in from the water supply hose connection port and is supplied to the outer tank 10 via the water supply unit 30. Detergent is pre-added to the water supply unit 30 and is added to the outer tank 10 along with the supplied water. Similarly, during rinsing, fabric softener is added to the outer tank 10 along with the supplied water from the water supply unit 30.

[0321] Figure 11 This is a perspective view showing the internal structure of a front-loading washing machine with the outer casing disassembled. Furthermore, Figure 11 This indicates that, in addition to the outer casing, the control unit 20, drying unit 140, etc., have also been disassembled.

[0322] like Figure 11 As shown, a water supply unit 30 is provided on the upper left side of the outer tank 10 to supply liquids containing water, detergent, fabric softener, etc. to the outer tank 10. Furthermore, the outlet of the water supply unit 30 is connected to the outer tank 10 via a supply pipe 35. The supply pipe 35 is provided with a water seal bend 35a and a rubber corrugated pipe 35b.

[0323] Figure 26 This is an exploded 3D view of the water supply unit.

[0324] like Figure 26 As shown, the water supply unit 30 (automatic water supply unit) includes a detergent dispenser 40B, a detergent tank 55, and a spray box 60, and is made of resin, for example.

[0325] The detergent dispenser 40B is configured to be able to be pulled out in the front-back direction relative to the detergent tank 55.

[0326] The spray box 60 is installed on the upper part of the detergent tank 55, configured to supply water to the upper surface of the detergent tank 40B like a shower. In addition, the spray box 60 is configured to include: a thin box-shaped main body 91, which has a bottom wall 91a with spray holes 92a and 93a; and a plate-shaped spray box cover 92 (refer to the double-dotted line), which covers the upper side of the main body 91.

[0327] Additionally, the spray box 60 has a thin, box-shaped water supply chamber 94. The water supply chamber 94 has two flow paths 94a and 94b extending from the left depth side end towards the front side. The flow paths 94a and 94b are formed by ribs erected from the bottom wall 91a. The flow paths 94a and 94b have water inlets 94c and 94d formed at the left depth side end. Solenoid valves 31a and 31b (see reference) are connected to the inlets 94c and 94d via hoses not shown. Figure 11 ).

[0328] Furthermore, multiple claws 50d located on the upper left and right outer sides of the detergent tank 55 engage with multiple engaging holes 90a located on the left and right outer sides of the spray box 60. The spray box 60 is also fixed to the detergent tank 55 by threaded components (not shown). Moreover, the detergent tank 55 and the spray box 60 are fixed to the outer casing 11 (see reference 11) by structural components (not shown). Figure 2 ).

[0329] Figure 27 This is an exploded 3D view of the detergent dispenser in the water supply unit.

[0330] like Figure 27 As shown, the detergent box 40B is configured to have a detergent box body 41 (detergent box body) and a detergent box lid 42 (detergent box lid).

[0331] The detergent dispenser body 41 includes: a detergent container 171 (detergent container section) for pre-containing a predetermined amount of detergent (liquid); a fabric softener container 172 (fabric softener container section) for pre-containing a predetermined amount of fabric softener (liquid, softener); and a detergent dispensing chamber 173 (manual detergent dispensing section) for manually dispensing detergent. The detergent container 171 and the fabric softener container 172 are used as containers for automatic dispensing. Each time a wash (main wash, pre-wash) is performed, an appropriate amount of detergent is drawn from the detergent container 171 by a pump (not shown), and an appropriate amount of fabric softener is drawn from the fabric softener container 172 by a pump (not shown).

[0332] The detergent container 171 is formed by creating a container 171a, which is wide in the left-right direction, a container 71b, which is elongated in the front-back direction, in the center in the left-right direction, and a container 71c, which is deep in the left side, into a room (space).

[0333] The fabric softener compartment 172 is formed to extend along the front-back direction from the right side in the left-right direction. Furthermore, the fabric softener compartment 172 is shallower than the detergent compartment 171. This is because components such as the step portion 56b of the detergent tank 55 protrude below the fabric softener compartment 172, and it is positioned as described above to avoid interference with them. By arranging the fabric softener compartment 172 in this position, it is possible to ensure that a larger amount of detergent, which is used more than the amount of fabric softener, can be contained. In other words, the manual dispensing section can be appropriately loaded with fabric softener while taking into account the capacity of the automatic dispensing container.

[0334] In addition, floats 75a and 75b for detecting the remaining amount of detergent and fabric softener are provided in the detergent compartment 171 and the fabric softener compartment 172. Furthermore, covers 75c and 75d are provided on the floats 75a and 75b to prevent them from flying out. The floats 75a and 75b are supported to move in the vertical direction, and the remaining amount of detergent and fabric softener can be detected by detecting the magnetic force of the magnets provided inside the floats 75a and 75b.

[0335] The detergent dispensing chamber 173 is rectangular in top view and is located closer to the front than the center in the front-to-back direction. The front and right sides of the detergent dispensing chamber 173 are covered by the partition wall of the detergent receiving chamber 171. The left side of the detergent dispensing chamber 173 is covered by the left side wall of the detergent dispenser body 41. The rear side of the detergent dispensing chamber 173 is open.

[0336] In this way, the detergent dispenser body 41 is formed seamlessly only in the three areas of the detergent container 171, the fabric softener container 172, and the detergent dispensing chamber 173.

[0337] The detergent dispenser lid 42 is a component that covers the upper opening of the detergent dispenser body 41, and is formed into a generally rectangular plate shape. Furthermore, the detergent dispenser lid 42 has: a cover portion 81 that covers the detergent compartment 171 and the fabric softener compartment 172; and a fabric softener dispensing chamber 82 (manual fabric softener dispensing section) for manually dispensing fabric softener. In this embodiment, the detergent compartment is composed of the detergent compartment 171 and the cover portion 81, and the fabric softener compartment is composed of the fabric softener compartment 172 and the cover portion 81.

[0338] The cover portion 81 has a cutout forming a detergent filling port 81a, which serves as an inlet for filling the detergent container 171 with detergent; and a fabric softener filling port 81b, which serves as an inlet for filling the fabric softener container 172 with fabric softener. The detergent filling port 81a and the fabric softener filling port 81b are rectangular in shape and arranged one behind the other. The detergent filling port 81a and the fabric softener filling port 81b are provided with caps 81c and 81d that can be opened and closed.

[0339] The fabric softener dispensing chamber 82 is positioned to coincide with the detergent dispensing chamber 173 in the vertical direction (up and down). That is, the fabric softener dispensing chamber 82 is shaped to be part of the space embedded in the detergent dispensing chamber 173. Furthermore, the vertical coincidence position means that when the fabric softener dispensing chamber 82 is viewed from above in the vertical direction, the fabric softener dispensing chamber 82 is positioned so that it does not protrude forward, backward, left, or right from the detergent dispensing chamber 173.

[0340] Furthermore, the fabric softener dispensing chamber 82 is shorter in the front-to-back direction than the detergent dispensing chamber 173, and a portion of the detergent dispensing chamber 173 is exposed. Additionally, the opening on the upper surface of the fabric softener dispensing chamber 82 and the opening on the upper surface of the detergent dispensing chamber 173 are located on the same plane.

[0341] Additionally, a siphon 83 is provided in the fabric softener dispensing chamber 82. This siphon 83 consists of a siphon pipe 83a erected on the bottom surface and a siphon cap 83b covering the siphon pipe 83a. The fabric softener dispensed into the fabric softener dispensing chamber 82 is configured to flow out of the detergent tank 55 along with the supplied water through the gap (not shown) between the siphon pipe 83a and the siphon cap 83b.

[0342] Furthermore, the fabric softener dispensing chamber 82 is not composed of other parts, but is integrally formed with the detergent dispenser cover 42 (cover 81) by resin molding. In other words, there are no gaps formed around the fabric softener dispensing chamber 82 (peripheral area) that would allow it to engage with other parts, so fabric softener will not enter the gaps, thus improving the cleaning performance when cleaning the fabric softener dispensing chamber 82.

[0343] Additionally, an inlet 84 is formed in the cutout of the detergent dispenser lid 42, serving as an entrance for dispensing detergent. This inlet 84 is rectangular in shape and is formed near the front side of the fabric softener dispensing chamber 82, communicating with the detergent dispensing chamber 173.

[0344] In addition, a conduit 85a is formed on the detergent dispenser lid 42 for drawing detergent from the detergent compartment 171, and similarly, a conduit 85b is formed for drawing fabric softener from the fabric softener compartment 172. These conduits 85a and 85b are integrally formed with the cover 81 by resin molding.

[0345] In addition, the detergent dispenser lid 42 is shaped to cover the opening on the upper surface of the detergent dispenser body 41, and is fitted into the upper surface of the detergent dispenser body 41.

[0346] Figure 28 This is a three-dimensional view showing the inside of the detergent dispenser in an automatic water supply unit. Figure 29 This is a rear view of the detergent dispenser in an automatic water supply unit.

[0347] like Figure 28 As shown, the detergent dispenser body 41 has an outlet 73a formed at the front end of the detergent dispensing chamber 173, which opens to the outside of the detergent dispenser body 41. The outlet 73a is formed facing rearward.

[0348] like Figure 29 As shown, regarding the detergent dispenser body 41, the bottom surface 172b that constitutes the fabric softener compartment 172 is obliquely cut, and when viewed from the back (rear), the right side is shallower and the left side is deeper.

[0349] Additionally, the detergent dispenser lid 42 has a conduit 85a for removing detergent contained in the detergent compartment 171 and a conduit 85b for removing fabric softener contained in the fabric softener compartment 172. Conduit 85a is L-shaped, extending forward and then towards the bottom surface of the detergent compartment 171. Similarly, conduit 85b is L-shaped, extending forward and then towards the bottom surface of the fabric softener compartment 172.

[0350] Figure 16 This is a 3D view of the detergent tank in the manually operated water supply unit. Figure 17 This is a floor plan of the detergent tank in the manually operated water supply unit. Figure 18 This is a front view of the detergent tank in the manually operated water supply unit. Figure 19 This is a rear view of the detergent tank in the manually operated water supply unit. Figure 20 This is a side view of the detergent tank in the manually operated water supply unit.

[0351] like Figure 16 As shown, the bottom surface 56 of the detergent tank 55 has an inclined surface 56a that slopes down from the near-front side towards the depth side. Additionally, the detergent tank 55 has a stepped portion 56b that rises one level from the bottom surface 56 towards the right side surface 58. This stepped portion 56b is formed to extend in the front-rear direction, and at the midpoint of the front-rear direction, the depth side is wider than the near-front side. Furthermore, the upper surface 56c of the stepped portion 56b slopes from the right end towards the left, allowing liquid to flow towards the outlet 50a.

[0352] like Figure 17 As shown, on the bottom surface 56 of the detergent tank 55, a guide flow path 56d is formed from the center in the front-to-back direction toward the depth side, guiding liquid from the near-front side to the outlet 50a. This guide flow path 56d is formed by protrusions 56e, 56f, and 56g that protrude from the bottom surface 56.

[0353] Additionally, two ribs 56h and 56i are formed on the bottom surface 56 of the detergent tank 55, guiding liquid from the near-front right side of the detergent tank 55 toward the depth side. These ribs 56h and 56i are formed to extend from the right side toward the left side and bend toward the guide flow path 56d.

[0354] Furthermore, in the detergent tank 55, a support portion 52a is formed on the inner wall of the left side 57, and a support portion 58a is formed on the inner wall of the right side 58. The support portion 52a on the left side is shorter than the support portion 58a on the right side.

[0355] like Figure 18 As shown, in order to prevent contact with the outer groove 10 (refer to...) Figure 2 Due to interference, the bottom surface of detergent tank 55 and the bottom surface of detergent tank 56 are obliquely cut. When viewed from the front, the right side is shallower and the left side is deeper.

[0356] like Figure 19 As shown, through holes 54a and 54b for inserting automatic dispensing pipes are formed on the rear surface 54 of the detergent tank 55. However, through holes 54a and 54b are not used in the manually operated water supply unit 30A.

[0357] like Figure 20 As shown, the bottom surface 56 of the detergent tank 55 slopes downward from the front side toward the depth side. Additionally, a stepped portion 56b is formed (see reference...). Figure 16 A depression 56j is formed at the position.

[0358] On the left depth side (depth side perpendicular to the paper surface) of the bottom surface 56, where the bottom surface 56 of the detergent tank 55 is at its lowest point, a supply pipe 35 is formed, which has an outlet 50a (see reference). Figure 12 ).

[0359] With this structure, even when the detergent dispenser 40A is pulled out and the detergent falls onto the bottom surface 56 near the front of the detergent tank 55, the supplied water is transported along the inclined surface 56a to the bottom surface of the front of the detergent tank 55 and then, together with the detergent, is transported along the inclined surface 56a toward the outlet 50a. Therefore, the fallen detergent is prevented from remaining at that location and accumulating.

[0360] Figure 30 This is a plan view showing the sprinkler box of the automatically activated water supply unit. Furthermore, Figure 30 This is the state after the spray box cover 92 has been removed from the spray box 60.

[0361] like Figure 30 As shown, on flow path 94a, at inlet 84 (refer to) when the detergent container 40 is housed. Figure 27 Multiple spray holes 92a are formed at opposite positions. Adjacent spray holes 92a are connected by grooves 92m to inhibit mold growth. Additionally, in the flow path 94b, a fabric softener dispensing chamber (see reference) is located where the detergent dispenser 40 is housed. Figure 27 Multiple water spray holes 93a are formed at opposite positions. Adjacent water spray holes 93a are connected by grooves 93m to inhibit the growth of mold.

[0362] Figure 31 This is a perspective view showing the detergent dispenser being pulled out of an automatic water supply unit. Furthermore, in Figure 31 The illustration of the spray box cover 92 of the spray box 60 is omitted.

[0363] like Figure 31 As shown, the upper part of the detergent tank 55 is covered by the spray box 60, and the detergent box 40 is configured to be freely pulled out from the front surface opening 50b of the detergent tank 55 in the front-rear direction. Figure 31 This is the state where the detergent dispenser 40 is pulled out to its maximum extent, and the lids 81c of the detergent compartment 171, 81d of the fabric softener compartment 172, the inlet 84 of the detergent dispensing chamber 173, and the fabric softener dispensing chamber 82 are exposed. Furthermore, although not shown in the diagram, the detergent dispenser 40 is prevented from being pulled out further than indicated by the limiting member provided on it. Figure 31 The position shown is closer to the front.

[0364] Figure 32 This is a 3D view showing the detergent dispenser retracted in an automatic water supply unit. Furthermore, Figure 32 This is the state where the spray box 60 has been removed from the detergent tank 55.

[0365] like Figure 32 As shown, the detergent dispenser 40 is different from the detergent dispenser 40A and is set to the following length: when stored in the detergent tank 55, the rear end of the detergent dispenser 40 abuts against the inner wall of the rear surface 54 of the detergent tank 55.

[0366] Additionally, the guide member 40d on the left side of the detergent dispenser 40 is configured to be mounted on the support portion 52a (see reference). Figure 17 Additionally, the guide member 40d on the right side of the detergent dispenser 40 is configured to be mounted on the support portion 58a (see reference). Figure 17 Thus, the detergent dispenser 40 is supported at a distance from the bottom surface 56 of the detergent tank 55 and can slide in the front-back direction.

[0367] Figure 33 This is a cross-sectional view showing the suction mechanism for detergent in an automatic water supply unit. Furthermore, Figure 33 This is a cross-sectional view taken at position 85a of the pipe, cut along the front-back direction.

[0368] like Figure 33 As shown, a generally L-shaped pipe 85a is integrally formed on the detergent dispenser lid 42 by resin molding. The pipe 85a has a tube portion 85a1 extending in the front-to-back direction and a tube portion 85a2 extending in the vertical direction. In addition, the tube portion 85a2 extends to the bottom surface of the detergent receiving chamber 171.

[0369] The end of the tube 85a1 has a rearward-facing opening 85a3. A suction tube 101 is inserted into the through hole 54a of the detergent tank 55, with its tip protruding into the detergent tank 55. An O-ring (sealing member, not shown) is provided at the tip of the suction tube 101 to prevent leakage when connected to the tube 85a. A suction pump (not shown) is connected to the suction tube 101, and detergent is appropriately drawn from the detergent container 171.

[0370] When the detergent dispenser 40 is pulled forward from the detergent tank 55, the suction tube 101 disengages from the opening 85a3, and the connection between the suction tube 101 and the detergent dispenser 40 is released. Conversely, when the detergent dispenser 40 is returned to its original position after being pulled out of the detergent tank 55, the suction tube 101 is inserted into the opening 85a3 of the pipe 85, and the suction tube 101 is connected to the pipe 85.

[0371] Furthermore, although the illustration is omitted, the pipe 85b on the fabric softener compartment 172 side can also be inserted and removed from the suction tube protruding from the through hole 54b of the detergent tank 55 using the same mechanism as described above. This allows fabric softener to be removed from the fabric softener compartment 172.

[0372] Figure 34 This is a cross-sectional view taken from the side of the detergent dispenser and fabric softener dispenser of the automatic water supply unit.

[0373] like Figure 34 As shown, the bottom surface 73b of the detergent dispensing chamber 173 slopes from the front side towards the depth side (rear). Furthermore, the front side of the bottom surface 73b of the detergent dispensing chamber 173 is formed as a gently curving surface 73c. ​​Additionally, a flow path S (space) is formed between the bottom surface 73b and the fabric softener dispensing chamber 82. Furthermore, the outlet 73a at the rear end of the bottom surface 73b is located further rearward than the fabric softener dispensing chamber 82.

[0374] Thus, the detergent added from the detergent inlet 84, together with the water ejected from the spray hole 92a of the spray box 60, flows backward on the bottom surface 73b and flows out from the outlet 73a into the detergent tank 55. The liquid containing the detergent flowing out of the detergent tank 55 flows backward in the guide path 56d on the bottom surface 56 and flows into the outlet 50a.

[0375] Additionally, the fabric softener added to the fabric softener inlet chamber 82, along with water supplied from the spray nozzle 93a of the spray box 60, falls through the siphon 83 onto the bottom surface 73b of the detergent inlet chamber 173. Then, the liquid containing the fabric softener flows rearward on the bottom surface 73b and exits from the outlet 73a into the detergent tank 55. The liquid exiting the detergent tank 55 flows rearward along the guide path 56d on the bottom surface 56 and flows into the outlet 50a.

[0376] Next, the function of the washing machine 100 equipped with the water supply unit 30 will be explained. First, the case of manually adding detergent and fabric softener for washing will be explained.

[0377] During washing, the user first grasps the operating part of the door 40a of the detergent dispenser 40 and pulls it towards the front, thus pulling the tray part 40b of the detergent dispenser 40 out of the opening 50b on the front surface of the detergent tank 55 (see reference). Figure 31 ).

[0378] Next, the user adds detergent to the detergent dispensing chamber 173. Additionally, bleach may be added as needed. Further, the user adds fabric softener to the fabric softener dispensing chamber 82. When the detergent and fabric softener have been added, the user pushes the door 40a of the detergent dispenser 40 towards the depth side, storing the tray 40b inside the detergent tank 55.

[0379] When the washing process begins, solenoid valve 31a (refer to...) Figure 11 (The circuit is open), and water from the water supply hose connection port flows into the water supply chamber 94 through the flow path 94a (refer to the reference) within the spray box 60. Figure 30 Water flows from multiple spray holes 92a in the bottom wall of the flow path 94a to the detergent dispensing chamber 173 of the detergent box 40 and is evenly sprayed, causing the detergent there to flow into the detergent tank 55. Then, the water and detergent pass through the outlet 50a of the detergent tank 55, through the supply pipe 35, and through the water seal bend 35a (see reference). Figure 4 The water is supplied from the water inlet (not shown) of the outer tank 10 into the outer tank 10.

[0380] Liquid containing water, detergent, bleach, etc., flowing out from the outlet of the water seal bend 35a is directly introduced into the lower part of the outer tank 10 through the water supply port formed on the bottom wall of the outer tank 10. Therefore, the liquid will not flow into the drum 14. This prevents the high concentration of detergent and bleach liquid (undiluted) from directly contacting the laundry and causing color fading or uneven coloring.

[0381] When water is supplied to the outer tub 10 to the predetermined water level and washing water is accumulated, the washing machine 100 uses the motor 113 to rotate the drum 14 and begin washing the clothes.

[0382] When the washing cycle is finished, the washing machine 100 opens the drain valve (not shown) to drain the washing water in the outer tub 10 and causes the drum 14 to rotate for centrifugal dehydration.

[0383] Next, the rinsing process begins. First, for example, another solenoid valve is turned on (opened), and water from the water supply hose connection is supplied into the outer tub 10. When the water supply into the outer tub 10 reaches the predetermined water level and washing water has accumulated, the washing machine 100 rotates the drum 14 via the motor 113 to begin rinsing the laundry. Rinsing is usually performed 2 to 3 times.

[0384] Furthermore, during the final rinse, the solenoid valve 31b is activated (opened), and water from the water supply hose connection flows through multiple spray holes 93a on the bottom wall of the flow path 94b into the fabric softener inlet chamber 82 of the detergent dispenser 40, where it is evenly sprayed. By diluting the fabric softener contained in the fabric softener inlet chamber 82 with water and raising the water level, water and fabric softener flow out of the siphon pipe 83a of the siphon 83 and into the detergent tank 55 via a siphon. Then, water and fabric softener are supplied from the outlet 50a of the detergent tank 55 through the supply pipe 35, via the water seal bend 35a, and from the water supply port of the outer tub 10 into the outer tub 10. When the rinsing process is completed, the washing machine 100 drains the washing water from the outer tub 10 and rotates the drum 14 for centrifugal dehydration, thus ending the washing process.

[0385] As described above, the washing machine 100 of this embodiment includes: a housing 11 that houses a washing tub (outer tub 10, drum 14); and a water supply unit 30 disposed on the housing 11 for dispensing detergent into the washing tub. The water supply unit 30 includes: a detergent dispenser 40 having a detergent compartment 171 for holding detergent, a fabric softener compartment 172 for holding fabric softener, a detergent dispensing compartment 173 for manually dispensing detergent, and a fabric softener dispensing compartment 82 for manually dispensing fabric softener; a detergent tank 55 that can be easily pulled out to store the detergent dispenser 40; and a spray box 60 disposed on the upper part of the detergent tank 55 for supplying water to the detergent dispensing compartment 173 and the fabric softener dispensing compartment 82. The fabric softener dispensing compartment 82 is positioned to coincide with the detergent dispensing compartment 173 in the vertical direction. Therefore, without reducing the volume of the detergent container 171 (detergent container) and the fabric softener container 172 (fabric softener container), the availability of the manual fabric softener dispensing chamber 82 and the automatic dispensing function can be improved.

[0386] In this embodiment, the detergent dispenser 40 includes: a detergent dispenser body 41 having an opening on its upper surface and having a detergent holding chamber 171, a fabric softener holding chamber 172, and a detergent dispensing chamber 173; and a detergent dispenser lid 42 covering the opening of the detergent dispenser body 41 and having a fabric softener dispensing chamber 82. Therefore, the fabric softener dispensing chamber 82 can be easily formed simply by extending the shape of the detergent dispenser lid 42 covering the detergent holding chamber 171 and the fabric softener holding chamber 172.

[0387] Furthermore, in this embodiment, the fabric softener dispensing chamber 82 is integrally formed with the detergent dispenser lid 42 via resin molding. This prevents gaps between components from forming around the fabric softener dispensing chamber 82, thus improving cleanability.

[0388] Furthermore, in this embodiment, a flow path S is formed in the detergent dispensing chamber 173 directly below the fabric softener dispensing chamber 82, through which detergent is dispensed into the detergent dispensing chamber 173. Thus, the flow path S of the detergent dispensing chamber 173 can be used as a flow path for fabric softener (liquid) flowing out of the fabric softener dispensing chamber 82, thereby preventing a reduction in the capacity of the detergent receiving chamber 171 and the fabric softener receiving chamber 172.

[0389] The present invention has been described above based on embodiments, but the present invention is not limited to the structures described in the above embodiments. It includes appropriate combinations or selections of the structures described in the embodiments, and its structure can be appropriately modified without departing from its spirit.

[0390] For example, the washing machine 100 with a drying function has been described in the above embodiments, but the present invention is not limited thereto and can also be applied to drum washing machines without a drying function.

[0391] Next, refer to Figures 1 to 4 , Figure 6 , Figure 11 , Figure 17 , Figure 38 , Figure 39 , Figure 40 Another embodiment of the present invention (hereinafter referred to as "this embodiment") will be described in detail below.

[0392] Currently, washing machines with the function of automatically dispensing detergent (including fabric softener) into the washing tub are becoming increasingly popular (see, for example, Chinese Patent Application Publication No. 107385800). In such washing machines, there is a structure in which a detergent tank is disposed below the detergent dispenser, which has a compartment for holding detergent (including fabric softener), to block detergent from falling from the compartment. The bottom surface of the detergent tank is sloped to allow the detergent to flow from the upstream side to the downstream side. This type of washing machine supplies water to the detergent dispenser and detergent tank from the outside, dissolving the detergent in the water supplied to the dispenser and detergent tank, while simultaneously allowing the detergent and water to flow together from the detergent tank into the washing tub.

[0393] However, in conventional washing machines described in Chinese Patent Application Publication No. 107385800, when powdered detergent is contained in the detergent dispenser, if the powdered detergent falls from the outlet of the dispenser onto the bottom of the detergent tank, it scatters around the area where it falls. In particular, areas higher than the area directly below the outlet of the detergent dispenser are areas where water supplied to the detergent tank has difficulty contacting the powdered detergent, and where powdered detergent easily remains on the bottom of the detergent tank. Therefore, positions higher than the area directly below the outlet of the detergent dispenser are areas where dissolved powdered detergent residue is likely to occur. In conventional washing machines, if powdered detergent scatters into such areas, dissolved powdered detergent residue may occur. Furthermore, conventional washing machines suffer from the problem that, in the event of dissolved powdered detergent residue, the washing capacity is reduced because the predetermined amount of detergent is not supplied to the washing tub.

[0394] To address this issue, existing washing machines are researching ways to increase the overall slope of the detergent tank's bottom surface (i.e., ensuring a steep slope) so that powdered detergent can easily fall from areas where dissolved residue is likely to accumulate. However, this design results in a larger detergent tank in the vertical direction. A larger detergent tank in the vertical direction, in turn, leads to a larger washing machine in the vertical direction. Therefore, existing washing machines face the problem that, due to size constraints, it is sometimes difficult to increase the overall slope of the detergent tank's bottom surface (i.e., ensure a steep slope).

[0395] The present invention provides a washing machine that does not result in an enlarged detergent tank in the vertical direction and suppresses the dispersion of detergent to areas where dissolved residues of powdered detergent are likely to be generated.

[0396] Hereinafter, embodiments of the present invention (hereinafter referred to as "this embodiment") will be described in detail with reference to the accompanying drawings. Furthermore, the drawings are shown only schematically to provide a sufficient understanding of the present invention. Therefore, the present invention is not limited to the examples shown in the drawings. Additionally, in the drawings, common constituent elements and identical constituent elements are labeled with the same symbols, and their descriptions are omitted.

[0397] Furthermore, in the conventional washing machine described in Chinese Patent Application Publication No. 107385800, the direction of flow of detergent and water in the detergent dispenser is opposite to that in the detergent tank. This conventional washing machine, as described in Patent Document 1, reduces the flow rate of detergent and water as they fall from the detergent dispenser into the detergent tank. Therefore, the conventional washing machine described in Patent Document 1 cannot ensure a smooth downstream flow of detergent and water falling from the detergent dispenser into the detergent tank, resulting in powdered detergent residue remaining on the bottom surface of the detergent tank, potentially leading to dissolved residue. Without increasing the overall slope of the bottom surface of the detergent tank, the conventional washing machine described in Patent Document 1 cannot ensure a smooth downstream flow of detergent and water falling from the detergent dispenser into the detergent tank. In other words, without ensuring a steep slope at the bottom surface of the detergent tank, the conventional washing machine described in Patent Document 1 cannot ensure a smooth downstream flow of detergent and water falling from the detergent dispenser into the detergent tank. Therefore, for this reason, in the existing washing machines described in Chinese Patent Application Publication No. 107385800, the detergent tank tends to be large in the height direction.

[0398] Therefore, in this embodiment, it is also intended to provide a washing machine 100 that, by configuring the detergent and water in the detergent dispenser to travel in the same direction as the detergent and water in the detergent tank, can achieve miniaturization in the height direction of the detergent tank.

[0399] <The overall structure of a washing machine>

[0400] The following is for reference Figure 1 , Figure 10 , Figure 11 The overall structure of the washing machine 100 according to this embodiment will be described. Here, it is assumed that the washing machine 100 is a global standard front-loading washing machine. A global standard front-loading washing machine is a washing machine that can be assembled to a washbasin or the like. Figure 1 This is a perspective view of the washing machine 100 according to this embodiment. Figure 10 This is a diagram of the internal structure of washing machine 100.

[0401] Figure 10 This indicates the internal structure of the washing machine 100 with the top cover 11c and door 12 removed. Figure 11This is a 3D diagram of the internal structure of the washing machine 100. Figure 11 This shows the internal structure as seen from the upper left of the washing machine 100 with the outer casing 11 removed.

[0402] like Figure 1 As shown, the washing machine 100 of this embodiment includes a housing 11 and a door 12 mounted on the front surface of the housing 11.

[0403] The outer casing 11 has a front surface cover 11a, an outer casing body 11b, and an upper surface cover 11c.

[0404] The door 12 has a door handle 12a on the upper part and an operating part 13 on the front surface.

[0405] like Figure 10 As shown, the washing machine 100 has a drum 14 in the center of the interior of the outer casing 11, a control unit 20 and a water supply unit 30 above the drum 14, and a drying unit 140 extending upward from the side of the drum 14.

[0406] The drum 14 is the container for the laundry. The drum 14 is enclosed within the outer tub 10, which functions as a water tank (see reference). Figure 11 Inside the drum 14, a baffle 15 is provided for scooping up the laundry contained in the drum 14. A freely opening and closing front surface cover 11a is provided on the front surface side of the outer casing 11. Outer tank 10 (see reference) Figure 11 The front surface portion of the front surface and the front surface cover 11a are sealed by a bellows 16.

[0407] The control unit 20 controls the overall operation of the washing machine 100. The control unit 20 is mounted on a housing 21 positioned above the drum 14. The water supply unit 30 has a water supply valve 31 that controls the water supply. The water supply unit 30 is connected to a water supply mechanism (not shown) via the water supply valve 31. The control unit 20 controls the intake and stop of water supplied from the outside by controlling the water supply valve 31.

[0408] The drying unit 140 is configured to heat air while circulating it between itself and the drum 14. The drying unit 140 includes a heating element 141 and a blower fan 142. The drying unit 140 circulates air between itself and the drum 14 by driving the blower fan 142, and heats the air by heating it with the heating element 141, thereby drying the laundry contained in the drum 14.

[0409] like Figure 11 As shown, the water supply unit 30 includes a spray box 32, a spray box cover 33, and a detergent dispensing unit 50.

[0410] The spray box 32 is a box for supplying water to the detergent box 51, which is built into the detergent dispensing section 50. The interior of the spray box 32 has a flow path for supplying water to the container of detergent or the like provided in the detergent box 51. The spray box 32 injects water from above into the container of detergent or the like provided in the detergent box 51. A spray box cover 33 is installed on the upper part of the spray box 32, and the flow path of the spray box 32 is sealed by the spray box cover 33.

[0411] <Structure of the water supply unit>

[0412] The following is for reference Figure 3 and Figure 4 The structure of the water supply unit 30 will be described. Figure 3 This is a top view of the water supply unit 30. Figure 4 This is a diagram of the internal structure of the water supply unit 30. Furthermore, Figure 4 This indicates the structure of the water supply unit 30 with the spray box cover 33 removed. Furthermore, in the following description, "upstream" and "downstream" are based on the direction of water, detergent, etc., flow.

[0413] like Figure 3 As shown, the water supply unit 30 is connected to a water supply mechanism (not shown) via a water supply valve 31. The water supply unit 30 includes a spray box 32 and a detergent dispensing unit 50.

[0414] The spray box 32 is a box for supplying water to the detergent box 51 built into the detergent dispensing unit 50. The interior of the spray box 32 has a flow path for supplying water to the receiving portions (specifically, the automatic detergent dispensing portion 51a, the automatic fabric softener dispensing portion 51b, the manual detergent dispensing portion 51c, and the manual fabric softener dispensing portion 51d, described later) of the detergent or other receptacles provided in the detergent box 51. The spray box 32 injects water from above into any receiving portion of the detergent box 51. A spray box cover 33 is installed on the upper part of the spray box 32, sealing the flow path of the spray box 32.

[0415] like Figure 4 As shown, the detergent dispensing unit 50 includes a detergent box 51, a detergent box cover 52, and a detergent reservoir 53.

[0416] The detergent dispenser 51 is a component having one or more compartments for holding detergent.

[0417] The detergent dispenser cover 52 is a component installed on the upper surface of the detergent dispenser 51.

[0418] The detergent dispenser 53 is a component that prevents detergent from falling out of the water-supplied detergent box 51 along with the water.

[0419] The detergent dispenser 51 includes: an automatic detergent dispensing compartment 51a, an automatic fabric softener dispensing compartment 51b, a manual detergent dispensing compartment 51c, and a manual fabric softener dispensing compartment 51d.

[0420] The automatic detergent dispenser 51a is for dispensing detergent automatically. The automatic fabric softener dispenser 51b is for dispensing fabric softener automatically. The manual detergent dispenser 51c is for dispensing detergent manually. Liquid or powder detergent is dispensed into the manual detergent dispenser 51c. The manual fabric softener dispenser 51d is for dispensing fabric softener manually.

[0421] <Structure of the Detergent Dispensing Section>

[0422] The following is for reference Figure 6 , Figure 38 , Figure 17 , Figure 39 , Figure 40 The structure of the detergent dispensing section 50 will be explained. Figure 6 This is an exploded perspective view of the detergent dispensing section 50. Furthermore, Figure 6 This indicates that the detergent dispenser 53 has been disassembled (see reference). Figure 4 The structure of the detergent dispensing section 50 is in a state of ( ). Figure 38 This is a 3D view of detergent dispenser 53. Figure 17 This is a top view of detergent dispenser 53. Figure 39 This is a side sectional view of the detergent dispensing section 50. Figure 40 This is an explanatory diagram of detergent and the like flowing inside the detergent dispensing section 50.

[0423] like Figure 6 As shown, the detergent dispensing unit 50 has an automatic detergent dispensing compartment 51a on the front right side, and an automatic fabric softener dispensing compartment 51b behind the automatic detergent dispensing compartment 51a. Additionally, the detergent dispensing unit 50 has a manual detergent dispensing compartment 51c on the front left side, and a manual fabric softener dispensing compartment 51d behind (specifically, above the rear) the manual detergent dispensing compartment 51c.

[0424] like Figure 6 As shown, the detergent dispensing unit 50 is configured such that a detergent box cover 52 is disposed on the detergent box 51.

[0425] The detergent dispenser 51 has an automatic detergent dispensing compartment 51a, an automatic fabric softener dispensing compartment 51b, and a manual detergent dispensing compartment 51c. The bottom surfaces of the automatic detergent dispensing compartment 51a, the automatic fabric softener dispensing compartment 51b, and the manual detergent dispensing compartment 51c are inclined surfaces that slope downwards from the front to the rear.

[0426] The automatic detergent dispenser 51a is formed to pass between the automatic fabric softener dispenser 51b and the manual detergent dispenser 51c, and its rear portion extends to the rear of the manual detergent dispenser 51c. A float 61a is disposed at the rear of the automatic detergent dispenser 51a, and a float cover 62a is disposed on the float 61a. In this embodiment, the float 61a is described as a float with a cone shape (including a truncated cone shape) whose diameter decreases downward. Three or more guide portions 59a (three in the example) are disposed around the float 61a to support the float 61a in a vertically movable manner.

[0427] The automatic fabric softener dispenser 51b extends rearward. A float 61b is disposed at the rear of the automatic fabric softener dispenser 51b, and a float cover 62b is disposed on the float 61b. Hereinafter, the float 61a and float 61b are collectively referred to as "float 61," and the float cover 62a and float cover 62b are collectively referred to as "float cover 62." In this embodiment, the float 61b, like the float 61a, is described as a float with a cone shape (including a truncated cone shape) whose diameter decreases towards the lower side. Three or more guide portions 59b (three in the example) are disposed around the float 61b to support the float 61b in a vertically movable manner. Hereinafter, the guide portions 59a and guide portions 59b are collectively referred to as "guide portions 59." In this embodiment, the guide portions 59 are described as being integrally formed on the bottom surface of the detergent dispenser 51. However, the guide portion 59 may also be configured as a different component from the detergent box 51, and fixed to the bottom surface of the detergent box 51 by means of adhesive or the like.

[0428] The manual detergent dispenser 51c is formed to extend rearward. The manual fabric softener dispenser 51d is disposed above the rear of the manual detergent dispenser 51c.

[0429] The detergent dispenser cover 52 has: an opening OP51a communicating with the automatic detergent dispensing section 51a; an opening OP51b communicating with the automatic fabric softener dispensing section 51b; an opening OP51c communicating with the manual detergent dispensing section 51c; and a manual fabric softener dispensing section 51d.

[0430] A freely opening and closing cover CP51a is installed on the opening OP51a. Additionally, a freely opening and closing cover CP51b is installed on the opening OP51b. A manually operated fabric softener container 51d is stacked on top of a manually operated detergent container 51c formed in the detergent dispenser 51. The bottom surface of the manually operated fabric softener container 51d is an inclined surface that slopes downwards from front to rear. Inside the manually operated fabric softener container 51d is a tub TU51d for introducing manually operated fabric softener into the manually operated detergent container 51c. A cover CP51d is installed on the tub TU51d.

[0431] like Figure 38 and Figure 17 As shown, the detergent tank 53 has a side inflow portion 53a on the side and a flow path portion 53b, an inclined portion 53c, an outflow portion 53d, and a wall portion 53e on the bottom surface.

[0432] The side inlet 53a is the part where water supplied from the outside flows in. The side inlet 53a is provided on one side of the front part of the detergent tank 53 (the right side in the example).

[0433] The flow path section 53b is the part that functions as a flow path for circulating water. The flow path section 53b is formed on the bottom surface of the detergent tank 53.

[0434] The inclined portion 53c is a portion formed at an angle to prevent the powder detergent from scattering. The inclined portion 53c is partially located on the flow path portion 53b at a point higher than the portion directly below the outlet OUT51c of the manually dispensed detergent container 51c of the detergent dispenser 51. Furthermore, this portion of the flow path portion 53b, higher than the portion directly below the outlet OUT51c of the manually dispensed detergent container 51c of the detergent dispenser 51, is a location where dissolved residue of powder detergent is likely to occur. The inclined portion 53c is configured to be inclined from the downstream side towards the upstream side at an angle greater than the slope angle of the bottom surface of the detergent dispenser 53.

[0435] The outlet 53d is a part that allows water in the detergent tank 53 to flow out to the outside. The outlet 53d is located near the other side of the rear of the detergent tank 53 (the left side in the example).

[0436] The wall surface 53e is a portion of the wall surface that guides the flow of water. The wall surface 53e guides the flow of water from the side inflow portion 53a toward the inclined portion 53c.

[0437] Water flowing into the detergent tank 53 from the side inlet 53a passes through the flow path 53b and the inclined section 53c to reach the outlet 53d. At this time, the detergent (including fabric softener) that has fallen from the detergent box 51 into the detergent tank 53 dissolves in the water. The detergent can be a liquid detergent or a powder detergent. The water containing the dissolved detergent is transported from the outlet 53d through a path not shown to the washing tank (outer tank 10).

[0438] like Figure 39 As shown, an outlet OUT51c is provided at the rear end (lowest downstream part) of the manual detergent dispensing section 51c of the detergent dispenser 51. The outlet OUT51c is an opening for allowing detergent to fall into the flow path section 53b of the detergent tank 53. The portion directly below the outlet OUT51c is slightly downstream of the inclined section 53c. In other words, the portion where the inclined section 53c is formed is slightly upstream of the portion directly below the outlet OUT51c.

[0439] like Figure 40 As shown, the detergent contained in the manually dispensed detergent container 51c is flushed away by the (supply) water injected from the spray box 32 and moves towards the outlet OUT 51c (see arrow A11). Then, the detergent and water are discharged from the outlet OUT 51c and fall onto the flow path 53b of the detergent tank 53 (see arrow A12). At this time, the detergent scatters due to collision with the flow path 53b of the detergent tank 53, but is prevented from scattering upstream of the location directly below the outlet OUT 51c by the inclined portion 53c, and is guided downstream by the slope of the flow path 53b (see arrow A12a). Afterwards, the detergent flows with the water on the flow path 53b and moves towards the outlet 53d (see arrow A13).

[0440] In addition, the fabric softener contained in the manual fabric softener container 51d is drawn into the drum TU51d, transported through the inside of the drum TU51d to the manual detergent container 51c, and then transported through the manual detergent container 51c to the detergent tank 53.

[0441] In this structure, the washing machine 100 has a steeply sloping section 53c, partially formed at a position slightly higher than the portion directly below the outlet OUT51c of the manually dispensed detergent container 51c. This design physically prevents powdered detergent falling from the detergent dispenser 51 into the detergent tank 53 from scattering towards areas prone to dissolution when the powdered detergent is dispensed into the manually dispensed detergent container 51c, thus suppressing the formation of dissolved detergent residue. Consequently, the washing machine 100 prevents a reduction in cleaning power.

[0442] Furthermore, the washing machine 100 can reduce the height of the detergent tank 53, thus enabling the detergent tank 53 to be miniaturized. Therefore, even if the size of the washing machine 100 makes it difficult to uniformly set a steep slope on the bottom surface of the detergent tank 53, it can still prevent powdered detergent falling from the detergent dispenser 51 into the detergent tank 53 from scattering towards areas where it is likely to dissolve and leave residue. Moreover, the washing machine 100 allows for greater design flexibility.

[0443] <Main Features of Washing Machines>

[0444] (1) As Figure 39 As shown, the washing machine 100 of this embodiment includes: a detergent dispenser 51 having one or more compartments for holding detergent; a spray dispenser 32 for supplying water to any compartment of the detergent dispenser 51; and a detergent tank 53 for blocking detergent from falling from the compartments supplied with water along with the water, allowing the detergent to flow out together with water supplied from the outside. The detergent tank 53 is positioned below the detergent dispenser 51 such that the outlet OUT51c of the compartment (manual detergent dispensing compartment 51c) of the detergent dispenser 51 is positioned on a flow path 53b formed on the bottom surface of the detergent tank 53 for water flow. Furthermore, a partial inclined portion 53c is provided on the flow path 53b of the detergent tank 53, higher than the portion directly below the outlet OUT51c of the compartment, which is inclined from the downstream side toward the upstream side at an angle greater than the slope angle of the bottom surface of the detergent tank 53.

[0445] The washing machine 100 of this embodiment has a partially inclined portion 53c on the bottom surface of the detergent tank 53. Therefore, the washing machine 100 of this embodiment can suppress detergent from scattering towards areas where dissolved detergent residue is likely to occur, i.e., the portion of the flow path 53b that is higher than the portion directly below the outlet OUT51c of the receiving portion. Furthermore, the washing machine 100 of this embodiment does not increase the overall slope of the bottom surface of the detergent tank 53 (that is, it does not need to ensure a steep slope of the bottom surface of the detergent tank 53), and can suppress detergent from scattering towards areas where dissolved detergent residue is likely to occur. Therefore, the washing machine 100 of this embodiment does not result in an increase in the height of the detergent tank 53.

[0446] (2) Figure 39 As shown, in this embodiment, the detergent dispenser 51 and detergent tank 53 of the washing machine 100 are arranged with the front part as the upstream side and the rear part as the downstream side, and their bottom surfaces are formed such that their height decreases from the front to the rear. That is, in this embodiment, the washing machine 100 can be configured such that the direction of travel of detergent and water in the detergent dispenser 51 and the direction of travel of detergent and water in the detergent tank 53 are the same.

[0447] The washing machine 100 of this embodiment does not increase the overall slope of the bottom surface of the detergent tank 53; that is, it does not need to ensure a steep slope of the bottom surface of the detergent tank 53, and it can ensure that the flow speed of detergent and water as it falls from the detergent dispenser 51 into the detergent tank 53 does not decrease. The washing machine 100 of this embodiment can achieve miniaturization in the height direction of the detergent tank 53.

[0448] (3) Figure 38 and Figure 17 As shown, the detergent tank 53 of the washing machine 100 of this embodiment has a side inflow portion 53a on one side of the front portion for water to flow in from the outside, and an outflow portion 53d near the other side of the rear portion for water to flow out to the outside.

[0449] The washing machine 100 of this embodiment allows water and detergent to flow smoothly from the side inlet 53a at the front to the outlet 53d at the rear. The washing machine 100 of this embodiment also allows powdered detergent adhering to areas prone to dissolving residues to flow smoothly downstream along with water.

[0450] (4) Figure 38 and Figure 17 As shown, the detergent tank 53 of the washing machine 100 of this embodiment has a wall surface 53e that guides the flow of water from the side inflow portion 53a toward the inclined portion 53c.

[0451] The washing machine 100 of this embodiment can maintain a relatively fast flow rate while allowing water to flow from the side inlet 53a toward the inclined section 53c. Therefore, the washing machine 100 of this embodiment can allow powdered detergent temporarily attached to the inclined section 53c, which is a region where powdered detergent residue is prone to dissolution, to flow smoothly downstream along with the water.

[0452] As described above, the washing machine 100 according to this embodiment does not result in an increase in the height of the detergent tank 53, and can suppress the detergent from scattering to areas where powder detergent residue is likely to occur.

[0453] This invention is not limited to the embodiments described above, and includes various modifications. For example, the embodiments described above are examples given in detail for ease of understanding of the invention, and are not limited to having all the structures described. Furthermore, a portion of the structure of the embodiments can be replaced with other structures, and other structures can be added to the structure of the embodiments. Additionally, regarding a portion of each structure, other structures can be added, deleted, or replaced.

[0454] For example, in the above embodiments, the washing machine 100 is described as having a drying unit 140, but the washing machine 100 can be configured to not have a drying unit 140, that is, it can be configured to be a washing machine that only has a washing function and does not have a drying function.

[0455] Alternatively, for example, washing machine 100 may be a type of washing machine other than upright or front-loading washing machines.

[0456] Symbol Explanation

[0457] 10—Outer tank (washing tub), 11—Outer shell (washing tub), 11a—Front surface cover, 11b—Outer shell body, 11c—Upper surface cover, 12—Door, 12a—Door handle, 13—Operating unit, 14—Drum, 15—Baffle, 16—Bellpipe, 20—Control unit, 21—Housing, 30—Water supply unit (detergent water supply unit), 30a—Installation unit, 30A—Water supply unit (manually operated water supply unit, detergent water supply unit), 30B—Water supply unit (automatically operated water supply unit, detergent water supply unit), 31—Water supply valve, 31a, 31b—Solenoid valves, 32—Spray box, 33—Spray box cover, 40—Detergent box (detergent box), 40A—Manually operated detergent box 40B—Detergent dispenser (automatic detergent dispenser), 41—Detergent dispenser body, 42—Detergent dispenser cover, 43—Main wash detergent dispensing chamber, 44—Pre-wash detergent dispensing chamber, 45—Fabric softener dispensing chamber, 50—Detergent dispensing section, 50a—Outlet, 51—Detergent dispenser, 51a—Automatic detergent dispensing chamber, 51b—Automatic fabric softener dispensing chamber, 51c—Manual detergent dispensing chamber, 51d—Manual fabric softener dispensing chamber, 52—Detergent dispenser cover, 53—Detergent tank, 53a—Side flow Inlet section, 53b—flow path section, 53c—inclined section, 53d—outlet section, 53e—wall section, 55—detergent tank (automatic detergent tank, manual detergent tank), 59 (59a, 59b)—guide section, 60—spray box (water supply box), 60A—spray box (first manual water supply box), 60B—spray box (second manual water supply box), 61 (61a, 61b), 161 (161a, 161b)—float, 61A—main body section, 62 (62a, 62b)—float cover, 62A—spray box cover, 63—water supply chamber, 64—inlet section, 64a, 64b—flow path, 64c, 64d—inlet, 64a1—first flow path (main washing) 64a2—Second flow path (main washing water supply section), 64a3—Third flow path (main washing water supply section), 64b1—First flow path (pre-washing water supply section), 64b2—Second flow path (pre-washing water supply section), 64b3—Third flow path (pre-washing water supply section), 65—Main washing water supply chamber, 65a—Sprinkler hole (sprinkler hole formed in the main washing water supply section), 65b—First flow path (main washing water supply section), 65c—Second flow path (main washing water supply section), 65d—Third flow path (main washing water supply section), 65e—Fourth flow path (main washing water supply section), 66—Pre-washing water supply chamber, 66a—Sprinkler hole (sprinkler hole formed in the pre-washing water supply section), 66b—First flow path (pre-washing water supply section),66c—Second flow path (pre-wash water supply section), 66d—Third flow path (pre-wash water supply section), 66e—Fourth flow path (pre-wash water supply section), 67—Fabric softener water supply chamber (fabric softener water supply section), 67a—Sprinkler hole (sprinkler hole formed in the fabric softener water supply section), 67b—Inlet, 67c—Flow path, 68—Tolerance water supply chamber (tolerance water supply section), 69—Through hole, 71—Water level sensor, 71a—Insertion part, 72—Water level Sensor bracket, 72a—insertion part, 72b—claw part (fixing part), 72c—hook part (engaging part), 73—pipe, 81—covering part (detergent container, fabric softener container), 82—fabric softener dispensing chamber (manual fabric softener dispensing chamber), 100—washing machine, 140—drying unit, 141—heating unit, 142—fan, 171—detergent container (detergent container), 172—fabric softener container (fabric softener dispensing chamber) 173—Detergent container), 173—Detergent inlet chamber (manual detergent inlet), a—Length (length of the third flow path 64a3, 64b3 in the front-back direction), 591—Mounting part, 592—Claw part (fixing part), 593—Gap, 594—Shaft part, 611—Through hole, 612—Magnet, 621—Fitting part, 622—Groove part, a—Length (length of the third flow path 64a33, 64b3 in the front-back direction), b—Length ( The tolerances are defined as follows: (length of the water supply section in the front-to-back direction), θ1, θ2—inclination angles, R1—inner diameter (diameter of the spray holes formed in the fabric softener water supply section), R2—inner diameter (diameter of the spray holes formed in the main wash water supply section), R3—inner diameter (diameter of the spray holes formed in the pre-wash water supply section), CP51a, CP51b, CP51d—caps, OP51a, OP51b, OP51c—openings, TU51d—bottle body, S—flow path.

Claims

1. A laundry machine characterized by, Possessing: a detergent box which accommodates a detergent; a detergent box cover which is installed on the above detergent box; a float which is disposed between the above detergent box and the above detergent box cover and moves up and down according to the remaining amount of the above detergent accommodated in the above detergent box; a guide portion which is disposed around the above float and supports the side portion of the above float so as to be able to move up and down; and a float cover which restricts the upward movement of the above float, the above float cover is a structure which can be installed and detached at the upper portion of the above guide portion, a through hole which penetrates in the up and down direction is provided at the center portion of the above float, and a shaft portion provided at the bottom surface of the above detergent box passes through the through hole, the above guide portion has an installation portion which installs the above float cover at the upper portion, the above float cover has an engagement portion which engages with the above installation portion of the above guide portion at the lower portion, the above guide portion has a claw portion at the above installation portion, and the above float cover has a groove portion at the above engagement portion, and the above guide portion is engaged with the above groove portion of the above float cover by the above claw portion, so that the above float cover can be fixed.

2. The washing machine according to claim 1, characterized in that, the above guide portion has a gap for passing the above detergent at the side portion, and is a structure which supports the side portion of the above float with three or more points of contact or line contact.

3. The washing machine according to claim 1, characterized in that, the above float is in the shape of a cone which is tapered toward the front end downward.

4. The washing machine according to claim 1, characterized in that, the above float is in the shape of a cylinder.

5. The washing machine according to claim 1, characterized in that, the above detergent box is a structure which accommodates a softener in addition to the above detergent, the above washing machine possesses: another float which moves up and down according to the remaining amount of the above softener accommodated in the above detergent box; another guide portion which is disposed around the above another float and supports the side portion of the above another float so as to be able to move up and down; and another float cover which restricts the upward movement of the above another float, the above another float cover is a structure which can be installed and detached at the upper portion of the above another guide portion.

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