JP5887504B2 - Washing machine - Google Patents

Description

  The present invention relates to a washing machine that performs washing, rinsing, dehydration, and drying processes in a rotating drum having a rotating shaft that is horizontal or inclined.

  A conventional washing machine of this type has a bottomed cylindrical rotating drum in which a large number of through-holes for allowing water and air to pass are formed in the circumferential surface, and is disposed in the water tank in a horizontal direction or a direction inclined from the horizontal direction. The rotary drum can be driven to rotate. A clothing doorway is formed on the front side of the aquarium so that it can be opened and closed by a door. The laundry is put into the rotating drum from the clothing doorway to control water injection and drainage into the aquarium and rotation of the rotating drum. Thus, washing, rinsing, and dehydration processes are performed.

  An operation display panel having a light emitting display section and a pressing operation button section is arranged at the upper front of the main body, and the user selects a desired driving course and starts driving. The operation display panel is made of a transparent resin, and the surface is covered with an insert-molded film to form a decorative surface that is colored and printed. The course selected by the user is lit and flashes during driving so that the user can easily identify the driving situation. (For example, refer to Patent Document 1).

  FIG. 2 shows a conventional operation display panel 50. Reference numeral 51 denotes a liquid crystal panel in which all display contents are turned on. When the user selects a “hurry” course, for example, a course button 52 is displayed. When you press, only the content that is valid for course selection lights up, and the course you set changes each time you press the course button. After confirming that it is set to “Hurry”, press the “Start” button to start operation.

JP 2008-66163 A

  However, in the structure of the conventional drum-type washing machine, many operation buttons for setting the operation content such as a course button are arranged on the operation display panel, and it is difficult to understand which button should be pressed and the operability is poor. Further, since the display content of the liquid crystal panel is only lit at a predetermined display position, the display size decreases as the number increases, and the visibility also decreases.

  The present invention solves the above-mentioned conventional problems, and provides a drum type washing machine that is excellent in operability, visibility, and appearance design.

The washing machine of the present invention includes a washing machine housing that houses a drum that is rotationally driven, a resin operation display panel that is disposed above the washing machine housing and has an opening window, and a back surface of the opening window. comprising a transparent glass plate which is attached via an elastic member, and a transparent electrode that is adhered to the back surface of the transparent glass plate, a liquid crystal mount which holds the liquid crystal panel is disposed on the back side of the transparent glass plate, An engagement portion that engages with the operation display panel is formed on the liquid crystal mounting base.

With such a configuration, when the user sets the operation details, if the user selects the course that he / she wants to select by directly touching the display appearing on the transparent glass plate, a lower-layer display such as “washing” time setting will appear. , It is possible to perform hierarchical operations that are determined by touching it, reducing the number of operation buttons, increasing the display, and improving operability and visibility.

  The said structure WHEREIN: The said transparent glass plate, an elastic body, a liquid crystal panel, and a liquid crystal mounting base are unitized, and are attached to the said operation display panel or a back cover. With such a configuration, it is possible to assemble the operation display panel or the back cover in a unit state in which quality such as performance and appearance is ensured, so that the quality is stabilized and the assemblability is improved. In addition, a factory that does not have the inspection and manufacturing equipment necessary for unitization can be assembled into an operation display panel, allowing a flexible production system.

  In any one of the configurations described above, the liquid crystal mounting base is screwed to the back surface of the operation display panel in the vicinity of the opening window. With such a configuration, the sealing property between the glass plate and the operation display panel by the elastic body can be ensured, and the detergent water or the like can be prevented from entering the inside of the unit from the opening window.

  In any one of the configurations described above, the liquid crystal mounting base is provided with an engaging portion that engages with the operation display panel between the screw fastening portions. With such a configuration, even if the liquid crystal panel is spread horizontally and the screw fastening portions are separated from each other, the engagement display portion can regulate the floating of the operation display panel, and the sealing property between the glass plate by the elastic body and the operation display panel can be improved. This can be ensured over the entire area and prevents detergent water and the like from entering the inside of the unit from the opening window.

  In the washing machine of the present invention, when the user sets the operation details, if the course desired to be selected by directly touching the display appearing on the transparent glass plate is selected, the lower layer display such as “washing” time setting is subsequently displayed. Hierarchical operations that appear and can be determined by touching it are possible, the number of operation buttons can be reduced, the display can be enlarged, and operability and visibility can be improved. At the same time, a liquid crystal is mounted on the front of the liquid crystal mount and a control board is mounted on the back, so that space can be saved, the space inside the operation display panel is expanded, the liquid crystal panel can be enlarged, and the display range can be expanded.

The principal part top view of the operation display panel part of the drum type washing machine of this invention Plan view of the main part of the operation display panel of a conventional drum type washing machine Longitudinal sectional view of the drum type washing machine of the present invention Overall perspective view of the drum type washing machine AA main part longitudinal cross-sectional view of the operation display panel of the drum type washing machine (A) BB main part cross-sectional view of the operation display panel part of the drum type washing machine (b) Main part cross-sectional view including the fastening boss of the washing machine Perspective view of essential parts of operation display panel of the drum type washing machine (A) Upper enlarged view of the operation display panel of the drum type washing machine (b) Lower enlarged view of the operation display panel of the drum type washing machine Rear view of the main part of the operation display panel of the drum type washing machine (A) Main part sectional view of the opening part of the back cover of the drum type washing machine (b) Other principal part sectional view of the opening part of the back cover of the drum type washing machine

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

(Embodiment 1)
In FIG. 3, a water tub 2 is suspended in a main body 1 of a drum-type washing machine, and a rotating drum 3 formed in a bottomed cylindrical shape in the water tub 2 has its axial direction from the front to the back. It is tilted downward toward the side and is rotatably arranged. On the front side of the water tank 2 is formed a clothing doorway 4 leading to the opening end of the rotating drum 3, and an opening provided on an upward inclined surface formed at the front portion of the front frame body 5 constituting the front surface of the main body 1. By opening the door 9 that opens and closes the part 6, the laundry in the rotary drum 3 can be taken in and out through the clothing entrance 4. Since the door 9 is provided on the upward inclined surface, the work for putting in and out the laundry can be carried out without bending the waist, and generally the workability of the drum type washing machine for taking in and out the laundry from the sideways opening is provided. The evil has been improved.

  A large number of through holes 10 communicating with the water tank 2 are formed on the peripheral surface of the rotating drum 3, and are driven to rotate in the forward and reverse directions by a motor 11 attached to the back side of the water tank 2. A water injection pipe 12 and a drain pipe 13 are connected to the water tank 2, and water injection and drainage into the water tank 2 are performed by controlling the water injection valve 14 and the drain valve 15.

  An operation display panel 16 is disposed on the upper part of the front frame body 5, and a detergent charging case 17 (described in FIG. 4) is disposed on the front frame body 5 so that it can be pulled out forward. Prior to driving, the user puts the detergent into the detergent charging case 17 and operates the operation display unit 16 as necessary to set the desired driving content, start driving, pause, and the driving progress state. Can be recognized.

  When the door 9 is opened and the laundry is put into the rotating drum 3 to start operation, the water injection valve 14 is opened, water is poured into the detergent charging case 17, and the detergent that has been poured therein is being poured. A predetermined amount of water is injected into the water tank 2 through the water injection pipe 12, and the rotating drum 3 is driven to rotate by the motor 11 to start the washing process. The laundry in the washing process is washed by repeating the stirring operation that is lifted in the rotating direction by the rotation of the rotating drum 2 and dropped.

  After the required washing time, the drain valve 15 is opened, the dirty washing liquid is discharged from the drain pipe 13, and the washing liquid contained in the laundry is dehydrated by a dehydrating operation of rotating the rotating drum 3 at a high speed. Water is poured into the water tank 2 from the water injection pipe 12 and a rinsing process is performed. Also in the rinsing process, the laundry is rinsed by repeating the stirring operation by the rotation of the rotating drum 2.

  5, 6, and 7, the operation display panel 16 is disposed between the front frame body 5 and the top plate 18, and a film 20 (PET film) in which the surface of the transparent resin portion 19 is insert-molded. ) And a decorative surface that is colored and printed, and an opening window 21 having a substantially rectangular shape is provided at the center. The opening window 21 is an area having neither transparent resin nor film, and a transparent glass plate 22 is attached to the operation display panel 16 via an elastic body 23 on the back surface thereof, and a transparent electrode 24 is mounted on the back surface of the transparent glass plate 22. Is glued. A liquid crystal panel 25 is attached to a liquid crystal mounting base 26 on the back side of the transparent glass plate 22, and a control board 27 for controlling the transparent electrode and the liquid crystal panel is attached to the back side of the liquid crystal mounting base 26.

  The operation display panel 16 also has a push operation button portion 28 and a light emission display portion 29, and an operation board 32 on which a switch 30, a light emitting element 31 and the like are loaded is provided inside the operation display panel 16. It is done. An operation member 36 having a light guide path 34 for guiding the light of the light emitting element 31 to the light emitting display unit 29 and a button unit 35 for pressing the switch 30 is provided between the operation display panel 16 and the back cover 33. Provided. Since the pressing operation button portion 28 does not have the transparent resin portion 19 and only the film 20 exists, the switch 30 can be operated with a light operation force. Further, the light emitting display portion 29 is printed with high transparency so that even the weak light of the light emitting element 31 can be sufficiently illuminated.

  When the user presses the power-on button (one of the pressing operation buttons), for example, a display as shown in FIG. 1 appears on the liquid crystal panel 25 and the display is visible through the transparent glass plate 22. Next, for example, if the user touches the surface of the transparent glass plate in the area where “My Style” is displayed with a finger, for example, the screen for setting the number of times and time for “washing” or setting the water level is displayed. Etc., and proceed to lower settings one after another. Such a hierarchical setting by directly touching the display screen is called a touch panel method, and the capacitance changes when the finger touches the glass by the transparent electrode 24 bonded to the back surface of the transparent glass plate 22. By detecting, the position touched by the finger can be specified, and the display content can be advanced according to the operation.

  FIG. 2 shows a conventional operation display panel 50. The display window in the center only shows the display content of the liquid crystal panel 51 through a transparent resin and a film formed by insert molding on the surface, and the display location is also determined. Therefore, as the display contents increase, the displayed characters become smaller. In addition, there are many setting buttons such as “Course” button 52, which makes it difficult to understand where the user should press, poor operability, small display characters, and poor visibility.

  Therefore, as described above, the operation display panel 16 is provided with the opening window 21, and the transparent glass plate 22 with the transparent electrode 24 bonded to the back side thereof is attached via the elastic body 23, so that the user directly touches the display screen. Therefore, it is not necessary to provide a large number of fixed operation buttons, and the number of operation buttons can be greatly reduced. Further, since only the display necessary for the current operation should be displayed on the liquid crystal panel 25, the display content can be reduced and increased, and operability and visibility can be improved.

  By the way, the change in capacitance is determined by the dielectric constant of the substance touched by the finger. The larger the dielectric constant, the larger the change in capacitance and the higher the sensitivity. Note that high sensitivity means that the position pressed by the finger can be recognized accurately and quickly, for example, it is difficult to cause a false detection that causes the finger to recognize that a water droplet has adhered, and the influence of external noise. It means that it is difficult to detect falsely. Here, for example, the dielectric constant of glass is about 9, ABS resin or PET resin is about 3, and the change in capacitance is inversely proportional to the thickness. Even if the thickness is three times that of PET resin, the sensitivity can be made equal.

  Incidentally, ABS resin and PET resin are transparent resin molding materials generally used as materials for operation display panels, and are used for the transparent resin portion 19 in both of the present embodiment and the conventional example. However, in the conventional example, the central display portion is the same as the other, in which a transparent resin having a thickness of about 3 mm and a film (PET) having a thickness of about 0.2 mm are insert-molded on the surface. The part has an opening window 21 and is a transparent glass plate 22 having a thickness of about 2 mm with a transparent electrode 24 bonded to the back surface. This is because we want to increase the sensitivity as much as possible.

  Even if the opening window 21 is not provided, it may be possible to increase the sensitivity during operation by reducing the thickness of the transparent resin portion 19 and directly bonding the transparent electrode 24 to the back surface. However, since a film (PET) is insert-molded on the surface, the thickness of the transparent resin is required to be 2.5 mm or more in order to ensure adhesion of the film and to suppress warping and deformation after molding. Thinning is not possible. On the other hand, in order to obtain a sensitivity that can be operated without a sense of incongruity when the user operates, the thickness of the transparent resin needs to be suppressed to about 1.5 mm, which is incompatible. Furthermore, when the transparent electrode 24 is bonded to the operation display panel, it is necessary to apply pressure and overheat with dedicated equipment after bonding in order to prevent bubbles from remaining and to improve adhesion. If the whole is put in, big equipment is needed and productivity cannot be raised. For the above reasons, a configuration in which the transparent electrode is directly bonded to the operation display panel cannot be adopted.

Therefore, in this embodiment, the operation display panel 16 is provided with the opening window 21, and the transparent glass plate 22 to which the transparent electrode 24 is bonded from the back side is attached to the back surface of the opening window 21 through the elastic body 23. The user looks at the display displayed on the liquid crystal panel 25, touches the surface of the transparent glass plate 22 with a finger, and sets various operation details as necessary. Considering prevention of breakage due to unexpected external force, the thickness of the transparent glass plate 22 is about 2 mm. However, since the dielectric constant is larger than the ABS resin as described above, the sensitivity during operation can be sufficiently high. The position pressed by the finger can be recognized accurately and quickly, and for example, it is difficult to make a false detection that considers that the water touched the finger touched state, and it is difficult to make a false detection due to the influence of external noise. .

  On the back side of the transparent glass plate 22, there are electrical components such as a liquid crystal panel 25 and a control board 27, which require waterproofing. Therefore, the outer periphery of the substantially rectangular transparent glass plate 22 is covered with a frame-shaped elastic body 23 and attached to the back surface of the substantially rectangular opening window 21 via this elastic body. In the inside of the upper side 37 of the opening window 21 and the inside of the lower side 38, the transparent glass plate 22 is connected to the operation display panel 16 via the elastic body 23 in the three directions of the front side, the back side, and the end side of the transparent glass plate 22. The liquid crystal mounting base 26 is waterproofly attached. Further, in the inside of the left side 39 and the inside of the right side 40 of the opening window 21, the transparent glass plate 22 is attached to the operation display panel 16 and the liquid crystal through the elastic body 23 in both the back side and the end side of the transparent glass plate 22. It is attached between the bases 26 in a waterproof manner.

  Bosses 41 are provided at the four corners of the opening window 21 on the back surface of the operation display panel 16, and the liquid crystal mounting base 26 and the back surface cover 33 are screwed together. In the screw fastening state, the elastic body 23 is pressed by the liquid crystal mounting base 26 and is in close contact with the transparent glass plate 22 and the operation display panel 16, so that the waterproof property of the opening window 21 is ensured. Therefore, even if the user accidentally spills water on the opening window 21, the water does not adhere to the electrical components such as the liquid crystal panel 25 and the control board 27 inside, so that it can be safely protected. In this embodiment, an example in which the liquid crystal mounting base 26 and the back cover 33 are fastened together is shown, but the same effect can be obtained even if the liquid crystal mounting base 26 is screwed to the operation display panel 16 alone.

  By attaching the transparent glass plate 22 to the back surface of the opening window 21 through the elastic body 23, it is possible to prevent the glass from being damaged by an external impact. An impact load is applied to the transparent glass plate 22 when the user drops something, for example. Also, when the product is delivered to the user's home in a packaged state, an impact force is also applied when the product is dropped or falls from the loaded state. Although the operation display panel 16 is made of resin and absorbs a little impact, the transparent glass plate 22 is hard but weak against impact. Therefore, by arranging the elastic body 23 on the outer periphery of the transparent glass plate 22, a flexible structure is obtained, and damage can be prevented even if an impact is applied from the outside.

  Further, glass has a linear expansion coefficient smaller by one order than ABS resin. There is a large temperature difference in summer and winter when the product is installed at the user's home, and there is a considerable temperature difference depending on the season and region even when the product is stored in a packed state in the warehouse. When components having large differences in linear expansion coefficients are combined, damage to the components may occur unless the structure absorbs deformation due to thermal expansion differences. Therefore, in the present embodiment, the transparent glass plate 22 is attached to the back surface of the opening window 21 via the elastic body 23, so that the difference between the thermal glass plate 22 and the operation display panel 16 or the liquid crystal mounting base 26 is caused by the thermal expansion difference. Even if a dimensional change occurs, it is absorbed by the elastic body 23 and can be prevented from being damaged.

  In addition to the area in the opening window 21 where the user can set the operation content by touching the transparent glass plate 22 with his / her finger, the operation display panel 16 includes a pressing operation button unit 28 for turning on, turning off, and starting the power. Some are left. It is also possible for the user to eliminate the pressing operation button unit by directly touching and setting the transparent glass plate according to the content displayed on the liquid crystal panel 25. However, if you do not leave a fixed operation button that is always visible from the outside, you want to stop immediately when the user makes a mistake during the operation and wants to return to the previous operation, or something goes wrong during driving. I don't know what to do at times, so I'm taking care not to do so.

  In the present embodiment, the operation board 32 loaded with the switch 30 that operates by pressing the pressing operation button section, the light emitting element 31 that illuminates the light emitting display section 29, and the like is controlled to control the transparent electrode 24 and the liquid crystal panel 25. While being separated from the substrate 27, the operation substrate 32 is attached to the back cover 33, and the control substrate 27 is attached to the back surface of the liquid crystal mounting base 26. The reason why the control board and the operation board are separated is that the surface shape of the operation display panel 16 has a round shape that recedes from the product center toward the end. This is because, due to this round shape, the operation board 32 placed at the right end is relatively retracted compared to the control board 27 placed near the center, and they are different from each other and cannot be combined into one. Therefore, for example, if the surface shape of the operation display panel 16 is close to a flat surface, the control board and the operation board may be integrated and attached to the back surface of the liquid crystal mounting base 26.

  Next, a concave step with the transparent glass plate 22 appearing on the upper, lower, left and right sides of the substantially rectangular opening window 21 will be described. The surface concave step H2 with respect to the transparent glass plate 22 on the left side 39 and the right side 40 of the opening window shown in FIG. 6 is smaller than the surface concave step H1 with respect to the transparent glass plate 22 on the upper side 37 and lower side 38 of the opening window shown in FIG. This concave step is the sum of the thickness of the transparent resin covering the transparent glass plate 22 and the thickness if the elastic body 23 is also interposed.

  As described above, in the inside of the left side 39 and the inside of the right side 40 of the opening window 21, the two directions of the back side and the end side of the transparent glass plate 22 are through the elastic body 23, but the front side is directly transparent resin. Therefore, the concave step H2 can be about 2.5 mm thick so that insert molding can be performed without any problem. On the other hand, in the inside of the upper side 37 of the opening window 21 and the inside of the lower side 38, the concave step H1 is made of a transparent resin because the three directions of the front side, the back side, and the end side of the transparent glass plate 22 are interposed. It becomes about 4.5 mm which added thickness 3mm and thickness 1.5mm of an elastic body, and becomes larger than H2. The difference between the concave steps H1 and H2 is absorbed by the step H3 of the step portion 42 formed on the left side of the left side 39 and the step H3 of the step portion 42 formed on the right side of the right side 40.

  Since the opening window 21 is one step concave from the surface of the operation display panel 16, it is conspicuous in appearance. If the width L1 of the opening window is too small with respect to the entire width L0 of the operation display panel 16, it looks poor and impairs the sense of quality. Design issues arise. When the display content is displayed on the liquid crystal panel 25 and the user sets the operation content or when the operation status of the product is displayed, the inside of the opening window 21 is brightly lit, so it is not a concern. When the light is extinguished, the concave area of the opening window becomes more conspicuous as an external dent.

  If the width L1 of the opening window is increased so that the ratio to the total width L0 of the operation display panel is, for example, about 40%, the presence of the recessed area of the opening window can be increased and the design can be improved. However, since the total width L0 is about 600 mm, the lateral width L1 of the opening window needs to be about 260 mm, and it is difficult to attach to the operation display panel 16 so as to ensure the waterproofness of such a large transparent glass plate and withstand the impact force. Also, if the operation display panel 16 itself is provided with such a large opening window, the strength of the parts decreases, and it becomes difficult to suppress warping and deformation after molding. Further, the production cost increases due to the increase in size of the glass plate and the transparent electrode.

  Therefore, in the present embodiment, the surface concave step H2 with respect to the transparent glass plate 22 on the left and right sides of the opening window is made smaller than the concave step H1 on the upper and lower sides, and the difference between the concave steps H1 and H2 is formed on the left side of the left side 39. It was absorbed by the step H3 of the stepped portion 42 and the step H3 of the stepped portion 42 formed on the right side of the right side 40. That is, H1 is approximately equal to (H2 + H3). Although the lateral width of the opening window is L1, by providing the lateral width L2 between the stepped portions 42 spreading outside, the concave region that is conspicuous in appearance can be widened.

The width L1 of the opening window is related to the size of the transparent glass 22, the transparent electrode 24, and the liquid crystal panel 25, and these electrical components are protected from water penetration from the outside and are also resistant to damage from the outside. L1 = about 150 mm is set as a size sufficient to prevent the above. However, this alone is too small with respect to the total width L0 = 600 mm of the operation display panel and looks poor in appearance. Therefore, a concave region having a lateral width L2 = 260 mm between the stepped portions 42 is also provided on the outside thereof. That is, the recessed area L2 can be made about 40% larger than the entire width L0 of the operation display panel, and the recessed area can be recognized in appearance, and the presence can be increased and the design can be improved accordingly. .

  The lateral width L2 between the step portions 42 is merely an appearance design shape and can be freely set because it does not affect the internal structure in terms of waterproofness and strength. Further, the surface side of the transparent glass plate 22 is brought into contact with the operation display panel 16 in order to reduce the level difference H2 on the left and right sides of the opening window, but the elastic body 23 is on the back surface side and end surface side of the transparent glass plate 22. Since the boss 41 is screwed and pressed between the liquid crystal mounting base 26 and the operation display panel 16, water from the transparent glass surface side does not enter the inside of the opening window 21 and is waterproof. Secured. Further, even if an impact is applied from the outside, the elastic body 23 absorbs it and prevents damage to parts.

  5, 6, and 7, the transparent glass plate 22 is elastically held between the liquid crystal mounting base 26 and the operation display panel 16 via the elastic body 23, and the liquid crystal panel 25 is attached to the liquid crystal mounting base 26 on the transparent glass plate side. The control board 27 is attached to the back surface of the liquid crystal mounting base 26. The door 9 and the detergent case 17 are disposed on the lower side of the operation display panel 16 and the upper side affects the height of the entire product, so it is difficult to enlarge the operation display panel. Therefore, by arranging parts on the front and back of the liquid crystal mounting base 26, the space inside the operation display panel can be effectively utilized, and the display range can be widely utilized.

  A relay line 50 is provided on the left side of the transparent electrode 24 and is connected to the control board 27 to convey operation information indicating where the user touched the display screen. A relay line 51 is provided on the lower side of the liquid crystal panel 25 and is connected to the control board 27 to control the content of the liquid crystal display. The transparent glass plate 22, the elastic body 23, the liquid crystal panel 25, the liquid crystal mounting base 26 and the control board 27 are unitized to form a touch panel unit 52. This touch panel unit 52 may be attached to the back surface of the operation display panel 16 alone. Alternatively, after the touch panel unit 52 is attached to the back cover 33, it may be attached to the back surface of the operation display panel 16 in the state of the operation display unit 53 in which the operation board 32 and the operation member 36 are also assembled.

  When the transparent electrode 24 is bonded to the transparent glass plate 22, special manufacturing equipment is required so that dust does not adhere and bubbles do not occur. Also, special performance inspection is required, such as whether the position where the user touches the transparent glass plate 22 with his / her finger is recognized in correspondence with the position on the liquid crystal panel 25, and whether the sensitivity is normal. Since the transparent glass plate 22 is covered with the elastic body 23 and attached to the liquid crystal mounting base 26, after being assembled as the touch panel unit 52, the positional relationship between the transparent electrode 24 and the liquid crystal panel 25 is shifted and the operation is hindered. It is possible to prevent the dust from adhering to the transparent electrode 24 and causing an appearance problem.

  Moreover, the length of the relay lines 50 and 51 connected to the control board 27 can be shortened by the configuration in which the liquid crystal panel 25 is attached to the front side of the liquid crystal mounting base 26 and the control board 27 is attached to the back side to form a unit. As a result, malfunction due to external noise can be prevented from occurring, and it is possible to prevent inadvertent hooking and damage during assembly, thereby improving assemblability. That is, the touch panel unit 52 can be assembled to the operation display panel 16 in a unit state in which quality such as performance and appearance is ensured, and the quality is stabilized and the assemblability is improved. Further, the touch panel unit 52 is produced in a factory equipped with inspection / manufacturing equipment necessary for unitization, and the operation display unit 53 which does not require such equipment can be produced in a factory without special equipment. Assembling can be done flexibly by assembling in another factory.

In FIG. 6, the liquid crystal mounting base 26 is screwed with a boss 41 formed on the back surface of the operation display panel 16 in the vicinity of the opening window 21. Of course, a space of about 15 mm is required to form the boss 41, so that four bosses 41 are provided on the left and right sides of the opening window 21 with sufficient space so that the width of the liquid crystal panel 25 in the vertical direction can be maximized. The upper and lower sides of the opening window 21 are not provided. As described above, the transparent glass plate 22 is covered with the elastic body 23 and elastically held between the liquid crystal mounting base 26 and the operation display panel 16, and at the same time has a sealing property. This prevents the detergent water and the like from entering the unit 52. Direct screw fastening in the vicinity of the opening window 21 is the most effective configuration for ensuring sealing performance. Further, by fastening the back cover 33 and the liquid crystal mounting base 26 together, it is possible to secure space and improve assemblability.

  8 and 9, the liquid crystal mounting base 26 is provided with engaging portions 54 and 55 that engage with the operation display panel 16 between the bosses 41 (between the screw fastening portions). Since the boss 41 is not provided in the vertical direction of the opening window 21 having no space as described above, when the liquid crystal panel 25 spreads horizontally, the bosses 41 (between the screw fastening portions) are separated and the operation display panel 16 is lifted. Can no longer be regulated. Therefore, between the bosses 41, an engagement portion 54 is provided on the upper side of the liquid crystal mounting base 26, and an engagement portion 55 is provided on the lower side to engage with the operation display panel 16. Sealability can be ensured over the entire area 21. Since this engaging portion can be formed in a smaller space than the boss, the sealing performance can be secured without sacrificing the vertical width of the liquid crystal panel 25, and the design and usability can be improved.

  9 and 10, an opening 56 is provided in the back cover 33 that covers the control board 27, a relay connector 57 of the control board 27 is provided at a position corresponding to the opening 56, and a lid 58 that covers the opening 56 is provided. ing. FIG. 9 shows a state in which the relay connector 57 can be seen from the opening 56 by removing the lid 58. The relay connector 57 is used to connect the operation board 32 and the control board 27, and does not need to be assembled to the back cover 33 in a previously connected state, and can be connected later in an assembled state to the operation display unit 53.

  Connecting the relay connector 57 before assembling to the back cover 33 means that the relay lead wire 59 is covered with the touch panel unit 52, and it is necessary to have a slack in the relay lead wire 59, resulting in poor assembly. There is also a possibility that the relay reed sensor 59 is bitten inside the unit. However, since the relay connector 57 is connected from the opening 56 after being assembled to the operation display unit 53, and finally the lid 58 is provided, it is not necessary to have unnecessary slack in the relay lead wire 59. The relay lead wire 59 can be prevented from biting, and workability is improved.

  A relay connector 60 is also provided at a position visible from the opening 56 of the control board 27. Similarly, after assembling the operation display unit 53, the relay lead sensor connected to a control device (not shown) disposed on the main body side. 61 can be connected to the relay connector 60 from the opening 56. Since this relay lead sensor 61 can turn the outside of the back cover 33, there is no need to turn the inside and assemble by blinding work, so the relay lead wire 59 can be prevented from biting inside the operation display unit 53. Workability is also improved.

  Further, after connecting the relay lead wires 59 and 61 to the relay connectors 57 and 60, the control board 27, the operation board 32, the liquid crystal panel 25, and the transparent electrode 24 are operated with the back cover 33 by covering the opening 56. It is covered with the display panel 16 and can be suppressed to, for example, a fitting gap of about 0.5 mm over the entire area. Thereby, after the operation display panel 16 is assembled to the main body 1, small animals such as cockroaches and dust can be prevented from entering the operation display unit 53, and the product can be prevented from being broken for a long time.

9 and 10, an opening 62 is provided in the back cover 33 that covers the control board 27, a connector 63 of the control board 27 is provided at a position corresponding to the opening 62, and a lid 64 that covers the opening 62 is provided. Yes. FIG. 9 shows a state where the connector 63 can be seen from the opening 62 by removing the lid 64. This connector 63 is used for writing a control program, and is used when it is necessary to write to the microcomputer of the control board 27 at a factory or a user's house after assembly into a product, for example, by improving the control program. To do.

  Although there are not many opportunities to write the control program, it always occurs at the beginning of mass production. As work at that time, the operation display panel 16 is removed from the main body 1, the lid 64 is opened, and the opening 62 is opened. When the connector 63 is visible from the side, the connector 63 is connected, and writing can be performed. The other electrical connectors such as the connector need not be touched at all, and the back cover 33 need not be removed from the operation display panel 16. Therefore, the work is easy and secondary disasters such as mistakes during assembly can be prevented.

  Further, by covering the opening 62 with the lid 64, the control board 27, the operation board 32, the liquid crystal panel 25, and the transparent electrode 24 are covered with the back cover 33 and the operation display panel 16, and for example, a fitting gap is provided over the entire area. It can be suppressed to about 0.5 mm. Thereby, after the operation display panel 16 is assembled to the main body 1, small animals such as cockroaches and dust can be prevented from entering the operation display unit 53, and the product can be prevented from being broken for a long time.

  As described above, in the washing machine according to the present invention, when the user sets the operation content, when the course desired to be selected by directly touching the display appearing on the transparent glass plate is selected, for example, the time setting for “washing” is performed. Further lower level displays appear, and hierarchical operations can be performed by touching them. The number of operation buttons can be reduced, the display can be enlarged, and operability and visibility can be improved. At the same time, a liquid crystal is mounted on the front side of the liquid crystal mounting base and a control board is mounted on the back side, saving space, increasing the space inside the operation display panel, increasing the liquid crystal panel, and expanding the display range. is there.

DESCRIPTION OF SYMBOLS 1 Main body 3 Rotating drum 5 Front frame 16 Operation display panel 18 Top plate 19 Transparent resin part 20 Film 21 Open window 22 Transparent glass plate 23 Elastic body 24 Transparent electrode 25 Liquid crystal panel 26 Liquid crystal mount 27 Control board 28 Press operation button Unit 29 Light emitting display unit 30 Switch 31 Light emitting element 32 Operation board 33 Back cover 34 Light guide path 35 Button unit 36 Operation member 37 Upper side of opening window 38 Lower side of opening window 39 Left side of opening window 40 Right side of opening window 41 Boss 42 Stage Part 50 Transparent electrode relay line 51 Liquid crystal panel relay line 52 Touch panel unit 53 Operation display unit 54, 55 Engagement part 56 Opening part (opening part A)
62 Opening (Opening B)
57, 63 Connector 58 Lid (Lid A)
64 Lid (Lid B)
59, 61 Relay lead wire

Claims (3)

A washing machine housing containing a drum to be rotated;
A resin-made operation display panel disposed above the washing machine casing and having an opening window;
A transparent glass plate attached to the back surface of the opening window via an elastic body;
A transparent electrode bonded to the back surface of the transparent glass plate;
A liquid crystal mounting base disposed on the back side of the transparent glass plate and holding a liquid crystal panel;
A washing machine in which an engagement portion that engages with the operation display panel is formed on the liquid crystal mounting base. Washing machine according to claim 1, wherein the bis-fastened to the liquid crystal mount the operation display panel. The washing machine according to claim 2, wherein the engaging portion is formed between screw fastening portions of the liquid crystal mounting base and the operation display panel.

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