JP4624212B2 - Washing machine - Google Patents

Description

  The present invention relates to a washing machine. Here, the washing machine includes a washing / drying machine having a drying function.

  In a conventional washing machine, a circuit board including a control circuit such as a microcomputer and various drive circuits is often arranged inside an operation panel arranged on the upper surface of the outer box. However, in recent years, the scale of an electric circuit tends to increase as the washing machine becomes highly functional and the control is complicated, making it difficult to store the circuit board in a narrow space inside the operation panel. Therefore, a configuration is often employed in which the circuit board is arranged in a space in the lower part of the outer box that does not interfere with the outer tub or other members.

  For example, in the drum type washing machine described in Patent Document 1, a circuit unit in which a circuit board is accommodated in a waterproof case is arranged vertically inside a lower portion of a front plate constituting an outer box. Further, in the spiral (vertical) washing machine described in Patent Document 2, a circuit unit in which a circuit board is accommodated in a waterproof case is placed horizontally below an outer tub disposed in an outer box. Is arranged. In any case, the circuit board is housed in a waterproof case or sealed with a resin material, etc. so that waterproof measures are taken, and even if water is splashed, it will fail due to an electrical short circuit or rust. It is considered so that it does not happen.

  These circuit units and various electrical components arranged in the outer box, for example, motors, heaters, various sensors, switches, etc. are connected by lead wires, but taking into consideration ease of assembly and repair, Conductivity is ensured by coupling a connector (usually a female connector) provided at the end of the lead wire and a connector (usually a male connector) mounted on the circuit board. However, in some cases, the connector provided at the end of the lead wire soldered directly to the circuit board side and the connector provided at the end of the lead wire extending from the electrical component outside the circuit unit may be coupled outside the case. In some cases, the lead wire may be relayed. Also, when connecting the electrical components outside the circuit unit or between the electrical components and the electrical circuit, a lead wire joined by a connector in the middle may be used.

  Such a connector for relaying the lead wire is disposed in the inner space of the outer box. However, since such a connector itself is generally not waterproofed, there is a risk of short circuit when water is applied. Therefore, in the manufacturing process, conventionally, it has been necessary to perform waterproofing processing such as covering the entire connector with a vinyl bag, and workability during assembly has been poor. In addition, even if the product is sufficiently waterproof at the time of shipment, the connector may be damaged by water due to a hole in the vinyl bag, etc., or insufficient adhesion during repair. There was a cause.

  Further, as the scale of the circuit board increases, the number of lead wires connected to the board also increases, so that many lead wires cross over the component mounting surface of the circuit board inside the case of the circuit unit. Then, the lead wire through which a large current flows is close to the pattern wiring of an electrical component or circuit board that handles a minute signal, or conversely, the lead wire through which a small current flows to a pattern wiring of an electrical component or circuit board that handles a large amplitude signal. It becomes easy to generate noise jumps by approaching. In addition, if the space between the circuit board and the case is narrowed in order to reduce the size of the circuit unit, the lead wire pushes the electrical component mounted on the circuit board, and the component is damaged or conversely due to mechanical stress. There is also a risk of damage to the lead wire coating.

JP 2003-259091 A JP 2004-8281 A

  The present invention has been made to solve the above-mentioned problems, and a first object of the present invention is to prevent the connector that relays the lead wires in the inner space of the outer box from being wet while suppressing an increase in cost. It is to provide a washing machine that can do.

  Further, the second object of the present invention is to provide electrical interference such as noise jumping in a circuit unit in which a circuit board is housed in a case and mechanical stress such as mechanical stress due to contact between a lead wire and an electrical component. An object of the present invention is to provide a washing machine that can prevent interference.

In order to solve the above-mentioned problems, the first invention is a main electric part for controlling and driving each member arranged in the outer box in order to perform a washing operation or a washing and drying operation. In a washing machine comprising a circuit unit including a circuit board on which is mounted, and a case for housing the circuit board therein,
The internal space of the case is separated into a board placement area in which the circuit board is placed and a lead wire placement area in which a plurality of lead wires are aggregated and extended in parallel. A lead wire passage permission range through which a lead wire can pass is set at a predetermined position on the boundary with the lead wire arrangement region, and the lead wire arrangement region and the outside of the case face the wall surface of the case facing the lead wire arrangement region. Ri formed outside the guide opening is formed with a plurality of through leads between,
About the lead wire which connects each member other than the said circuit unit and an electric circuit, the 1st lead wire which has a male connector in an end part, and the 2nd lead wire which has a female connector in an end part pass through different external guide openings, respectively. The lead connector is pulled into the lead wire placement region, and the male connector and the female connector are joined in the lead wire placement region, and the first lead wire and the second lead wire are connected via the connector joint portion. Are connected to each other.

  Here, in order to separate the internal space of the case into the substrate arrangement area and the lead wire arrangement area, a means (member) for regulating or guiding at least a position through which a plurality of lead wires pass is required. . For this purpose, it is conceivable to bind the lead wires or to provide a lead wire guiding rib or the like. However, in order to fit the lead wires within the lead wire arrangement region more securely, for example, the substrate arrangement region and the lead The line arrangement region may be a substrate storage portion and a lead wire storage portion partitioned by a partition wall, and the lead wire passage permission range may be an internal guide port formed in the partition wall. In other words, in this configuration, the internal space of the case is completely partitioned into the board housing portion and the lead wire housing portion, so that the lead wire that is desired to avoid interference with the circuit board can be reliably separated from the circuit board.

The second invention made to solve the above-described problems is a main electric for controlling and driving each member arranged in the outer box in order to perform the washing operation or the washing and drying operation. In a washing machine including a circuit unit including a circuit board on which components are mounted, and a case for housing the circuit board therein,
The case is provided with a plurality of guide openings for passing lead wires, and the lead wires for connecting each member other than the circuit unit and the electric circuit, the first lead wire having a male connector at the end and the female die A second lead wire having a connector at the end is drawn into the case through different guide openings, and the male connector and the female connector are coupled within the case, and the second connector is coupled via the connector coupling portion. One lead wire and the second lead wire are connected to each other.

  In the washing machine according to the first invention and the washing machine according to the second invention, the case in which the circuit board is installed is considered to be waterproof. For example, even if water splashed from inside the outer tub is applied to the case, Evacuation is avoided and no electrical short circuit occurs. And in the washing machine of the said aspect which concerns on 1st invention, and the washing machine which concerns on 2nd invention, it is not related directly with the circuit board as well as the circuit board and the electrical component mounted in the circuit board, ie, both ends All of these are not connected to the circuit board, but the various electrical system members arranged in positions outside the circuit unit and not in the circuit unit, and lead wires for connecting between the electrical circuits, Connectors (male connector and female connector) for connecting the first lead wire and the second lead wire constituting the lead wire are passed through the circuit unit so as to be accommodated in this case.

  In this way, from the viewpoint of electrical connection, a lead wire that does not need to pass through the case is dared to pass through the case, so that the connector for connecting the lead wire that is vulnerable to moisture is accommodated in the case. Therefore, according to this configuration, since the connector for connecting the lead wires is not exposed in the inner space of the outer box, there is no need to take additional waterproof measures such as covering such a connector with a vinyl bag as in the prior art. Time-saving work can be saved and costs can be reduced. In addition, reliable waterproofing can be ensured over a long period of time, and waterproofness is not impaired even if repairs are made.

  In the washing machine according to the first aspect of the present invention, since the lead wire arrangement area is secured separately from the board arrangement area in the circuit unit, a plurality of leads introduced into the circuit unit from the outside of the circuit unit and connected to the circuit board are provided. After the wires are drawn into the case, they are once aggregated in the lead wire arrangement area, and the lead wire ends are connected to predetermined positions on the circuit board arranged in the board arrangement area through the lead wire passage permission range. . Thereby, the length of the lead wire crossing the circuit board can be shortened. In addition, it is possible to prevent lead wires that do not need to traverse the circuit board from being drawn around on the circuit board. Accordingly, undesired electrical interference between the lead wire and the electrical component or pattern wiring mounted on the circuit board can be prevented, and noise jumping can be reduced. Moreover, since it can prevent that a lead wire contacts an electrical component and it mutually presses mechanically, durability improves and it leads also to the improvement of reliability.

  Further, in the washing machine according to the first aspect of the invention, the case is a flat box shape whose one side is widely opened, and a main body member to which the circuit board is fixed, and a lid member for closing the open surface of the main body member. It is preferable that it is comprised including.

  According to this configuration, when any trouble occurs in the circuit board, the lid member can be opened to easily repair or replace the circuit board.

  Furthermore, the circuit unit is fixed in position with respect to the outer box in an upright state so that the lead wire storage portion is on the lower side, and can be laid down on the outer side of the outer box with the lower end as an axis. A structure is preferable.

  According to such a configuration, it is possible to repair and inspect the circuit board by exposing the circuit board by lying down on the outer side of the outer box without obstructing the lead wires. In particular, if the component mounting surface of the circuit board faces upward with the circuit unit lying down on the outer side of the outer box, the maintainability is further improved.

  Moreover, as one aspect of the washing machine according to the first aspect of the invention, an opening is provided in the rear surface portion of the outer box, and the circuit unit is attached to protrude rearward from the rear surface portion of the outer box so as to close the opening. It may be configured.

  According to this configuration, since the circuit unit is exposed outside the apparatus, it is not necessary to provide a space for the circuit unit in the outer box, and the inside of the outer box can be used effectively.

  Hereinafter, a washing / drying machine as an embodiment of the washing machine according to the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of the washing / drying machine according to the present embodiment as viewed obliquely from the upper front, FIG. 2 is an external perspective view of the washing / drying machine according to the present embodiment as viewed from diagonally rearward, and FIG. FIG. 4 is a schematic side cross-sectional view showing the internal configuration of the washing / drying machine according to the present embodiment. FIG.

  First, the overall configuration of the washing / drying machine of this embodiment will be described. As shown in FIG.1 and FIG.2, the outer box 1 which comprises the external shape of this washing-drying machine is made into the substantially rectangular parallelepiped box shape as a whole. The outer box 1 has a pedestal portion 2 having legs formed at the four corners of the bottom surface, a front side plate 3 having a U-shaped cross section formed integrally with both side surfaces and the front surface, and an upper surface opening of the front side plate 3 closed. The rear edge of both side surface portions of the front side surface plate 3 is bent inward to form rear surface edge portions 3a and 3b that form part of the rear surface portion. A large opening 3c sandwiched between the upper surface plate 4 and the pedestal portion 2 is formed between the rear surface edge portions 3a on both sides. The reinforcing plate 18, the rear surface plate 5, and the circuit unit 60 are arranged in the opening 3c from above. As a result, the opening 3c is closed.

  The flat box-like circuit unit 60 is mounted in an upright state so as to protrude further rearward than the rear surface edge portions 3a and 3b, the rear surface plate 5, and the rear wall surface of the pedestal portion 2 in the surroundings. The circuit unit 60 incorporates a circuit board on which a main electric circuit for operating the washing / drying machine is mounted. The structure will be described in detail later.

  As shown in FIG. 3, the top plate 4 is divided into three in the front-rear direction, that is, a front section 4a, a central section 4b, and a rear section 4c, and a laundry input port 6 is provided in the central section 4b. In order to open and close the laundry input port 6, a bi-foldable upper lid 7 that rotates about a horizontal axis in the lateral direction is attached. The upper lid 7 can be locked in a closed state by an upper lid locking mechanism 16 disposed at the right front portion of the upper surface plate 4. On the other hand, each of the front section 4a and the rear section 4c is formed with a recess for storing a predetermined part, and the front decorative cover 10 on which the operation panel is printed is formed on the upper surface of the recess of the front section 4a. The upper surface and the back surface of the recess of the rear section 4 c are covered with the rear decorative cover 11. An operation board 17 on which switches, a display, a display drive circuit and the like are mounted is attached below the operation panel provided on the front decorative cover 10.

  A water supply hose connection port 12 is provided in the middle of the rear part of the rear decorative cover 11 to be slightly recessed and connected to a water supply hose, and a bath water absorption hose connection port 13 is provided in front of the water supply hose connection port 13. On the left side of the water supply hose connection port 12, when another clothes dryer is installed in the upper space of the present laundry dryer using an installation stand, a dehumidified water drain port is connected to the clothes dryer's dehumidified water discharge hose. 14 is provided.

  As shown in FIG. 4, a bottomed cylindrical outer tub 20 is suspended inside the outer box 1 by a plurality of springs (not shown) so as to be appropriately swingable. A bottomed cylindrical laundry dewatering tub 21 also serving as a drying tub is rotatably supported around a main shaft 22. A pulsator (rotary blade) 23 for agitating the laundry is disposed at the inner bottom of the laundry dewatering tank 21, and the pulsator 23 is rotatable by a drive shaft 24 inserted into the main shaft 22. A main motor 25 for direct drive and a power transmission mechanism 26 including a power switching clutch 261, a speed reduction mechanism, a band brake, and the like are installed below the bottom surface of the outer tub 20.

  The clutch 261 releases the connection between the main shaft 22 and the drive shaft 24 so that only the pulsator 23 is rotated in the washing operation and the rinsing operation by the operation of the torque motor 27. Mechanical switching is performed so that the main shaft 22 and the drive shaft 24 are connected to rotate the main shaft 23 integrally. When the connection between the main shaft 22 and the drive shaft 24 is released, the rotation of the main shaft 22 is restrained by a band brake (not shown). Therefore, the washing / dehydrating tub 21 does not rotate and only the pulsator 23 can rotate.

  A drain opening 30 is formed at the bottom of the outer tub 20, and one end of a drain pipe 31 is connected to the drain opening 30. The drain pipe 31 is opened and closed by a drain valve 32. The other end of the drainage pipe 31 is connected to an external drainage groove through a standing drainage hose (not shown). The opening / closing operation of the drain valve 32 is linked to the operation of the torque motor 27 in the same manner as the connection switching operation of the clutch 261. That is, by driving the torque motor 27, the drainage valve 32 is opened when the washing and dewatering tub 21 and the pulsator 23 are connected to rotate integrally by the clutch 261, and the washing and dewatering tub 21 and the pulsator are opened by the clutch 261. When the connection with 23 is released so that only the pulsator 23 rotates, the drain valve 32 is closed.

  The upper surface opening of the outer tub 20 is covered with an outer tub cover 34 having an openable / closable inner lid 35. When the inner lid 35 is closed, the outer tub 20 is substantially sealed. The outer tub cover 34 has two pipes arranged side by side, that is, a water supply duct 36 for supplying water into the washing / dehydrating tub 21 and a high-temperature air into the washing / dehydrating tub 21 during drying operation. The warm air duct 37 is connected. The inner lid 35 is formed with an exhaust port 38 for exhaust. Both the ducts 36 and 37 have a bellows shape, and even if the outer tub 20 swings, the pipes can be bent appropriately.

A balance ring 40 is attached to the upper edge portion of the washing / dehydrating tub 21 to suppress a large oscillation of the head during high-speed rotation. A circulation water channel 41 extending in the vertical direction from the bottom of the laundry dewatering tank 21 to the bottom of the balance ring 40 is formed on the inner peripheral surface of the laundry dewatering tank 21, and the circulation water channel 41 is directed vertically toward the inside of the laundry dewatering tank 21. A slender water discharge port 42 is provided in the water discharge port 42, and a lint filter 43 is detachably attached to the water discharge port 42. When the pulsator 23 is rotationally driven in a state where appropriate water is stored in the outer tub 20, water between the bottom surface of the outer tub 20 and the bottom surface of the washing / dehydrating tub 21 is driven by the pumping action of the back blades on the lower surface of the pulsator 23. Is sucked into the washing / dehydrating tub 21 through a water passage hole 44 formed in the bottom surface of the washing / dehydrating tub 21, pushed out to the periphery, and fed into the lower end opening of the circulation water channel 41. Then, water is pushed et al are within the water circulation passage 41, discharged from the water discharge port 42 to the washing and dewatering tub 21. At this time, dust such as yarn waste mixed in the water is collected by the lint filter 43.

  On the other hand, a detergent charging duct 45 extends vertically from the bottom of the laundry dewatering tank 21 on the inner wall surface of the laundry dewatering tank 21 facing the circulation water channel 41 with the pulsator 23 interposed therebetween. The detergent inlet 46 at the upper end of the detergent inlet duct 45 can be freely opened and closed by a detergent inlet cover 47 that is opened by turning around the substantially horizontal axis so as to fall into the laundry dewatering tub 21. Prior to the washing operation, the user opens the detergent inlet cover 47, accommodates the detergent on the inner surface, and closes the cover 47. Then, the detergent falls in the detergent charging duct 45 and falls to the bottom of the laundry dewatering tank 21. After that, when water is poured into the washing and dewatering tank 21 and the pulsator 23 is rotationally driven, the detergent is passed along with the water fed into the detergent charging duct 45 by the pumping action of the back blades of the pulsator 23 as described above. It is supplied from the hole 48 into the washing and dewatering tank 21.

  As shown in FIG. 2, a substantially rectangular parallelepiped water injection port 50 elongated in the front-rear direction is provided in the center of the rear section 4 c of the top plate 4, and a fan 521, a fan motor 522, A hot air supply unit 52 including a heater 523 is disposed. On the other hand, a bath water pump 53 that is thin in the depth direction is disposed on the right side of the water inlet 50, and a water supply valve 54 is arranged behind the water supply valve 54. A water level sensor 55 for detecting the water level stored in the water is disposed. Although not shown, an air trap is formed at the bottom of the outer tub 20, and the other end of the air hose connected to the air trap is connected to the water level sensor 55.

  The water injection port 50 includes a tray 51 serving as a softening agent container so that the tray 51 can be pulled forward. The water supply valve 54 is a double valve, and in response to a control signal from the outside, a flow path for flowing water supplied to the water supply hose connection port 12 through the tray 51 in the water injection port 50, and the tray 51 It flows in either of the flow paths that flow without going through, or interrupts the flow. In general, when supplying water for washing or for rinsing other than the final rinse, water is supplied without passing through the tray 51, and water is supplied into the washing and dewatering tub 21 through the water supply duct 36. On the other hand, at the time of water supply for the final rinse, water flows through the tray 51, and water is supplied into the washing and dewatering tub 21 through the water supply duct 36 with the softening finish previously stored in the tray 51. The bath water pump 53 sucks in hot water remaining in the bath from the outside via the bath water absorption hose connection port 13 and discharges water to the water injection port 50.

  In the hot air supply unit 52, when the fan 521 is rotationally driven by the fan motor 522, the outside air is sucked through the intake port 15 provided with an intake filter provided on the rear surface of the rear decorative cover 11 so as to be detachable. It is sent into the outer tub 20 through a hot air duct 37 extending downward. The heater 523 is a PTC heater (semiconductor heater), and when the heater 523 is energized during the blowing by the fan 521 as described above, the outside air heated by the heater 523, that is, warm air is supplied into the outer tub 20. The If the heater 523 is not energized, unheated outside air, that is, cold air is supplied into the outer tub 20. A temperature sensor 56 is mounted on the outer surface of the trunk of the outer tub 20, and the temperature sensor 56 detects the temperature in the washing / dehydrating tub 21 during drying.

  Although not shown in FIG. 4, the bottom of the outer tub 20 is provided with an electrolyzer 58 for electrolyzing water stored in the outer tub 20 (for example, water added with saline). Thus, the stored water is electrolyzed to produce a chlorine-containing substance such as hypochlorite ion having a bleaching action, and this can be used to perform washing without using a detergent (detergent zero course).

  FIG. 13 is a schematic configuration diagram for explaining a connection relationship between an electric circuit and main electric components in the washing and drying machine of the present embodiment. The control unit 80 is configured mainly with a microcomputer or the like. In the control unit 80, a key signal is received from the operation unit 82 having a plurality of operation keys such as a course selection key and a start key, and the water level sensor 55 is supplied to the outer tank. A water level detection signal corresponding to the water level of water stored in 20 is input from the upper cover switch 84 as a lid opening / closing signal interlocked with opening / closing of the upper lid 7, and a temperature detection signal is input from the temperature sensor 56. Further, the control unit 80 rotates the main motor 25, opens / closes the water supply valve 54, operates the torque motor 27, operates the bath water pump 53, and heats the heater 523 in the hot air supply unit 52 via the load driving unit 81. The operation, the operation of the fan motor 522, the operation of the upper lid lock mechanism 16, and the like are controlled, and the operation of the electrolyzer 58 is also controlled via the electrolysis drive unit 57. In addition, the control unit 80 causes the display unit 83 to display the key input acceptance state of the operation unit 82 and the progress of washing.

  Operation programs corresponding to various courses are stored in advance in the ROM of the control unit 80, and the control unit 80 controls each unit according to the operation program corresponding to the course selected by the user using the course selection key of the operation unit 82. By doing so, washing operation and drying operation corresponding to each course are performed.

  In the electric system configuration, the control unit 80, the main load driving unit 81, and the power supply system circuit 85 are mounted on a circuit board 75 housed in a circuit unit 60 described later. Further, the operation board 17, the upper lid switch 84, the water level sensor 55, the water supply valve 54, the bath water pump 53, the heater 523, the fan motor 522, the upper lid lock mechanism 16, etc. are located in the upper surface plate 4, that is, in the upper part of the space inside the outer box 1. The main motor 25, the torque motor 27, the temperature sensor 56, the electrolyzer 58 and the like are arranged outside the outer tub 20. Further, the electrolysis drive unit 57 is grounded at a position near the bottom in the outer box 1. As described above, various electrical components, circuits, and the like are distributed and arranged at various locations in the inner space of the outer box 1, and lead wires for connecting them to each other are routed in the outer box 1. It will be.

  5 is a perspective view showing a state in which the circuit unit is mounted on the pedestal portion in the washing and drying machine of the present embodiment, FIG. 6 is a cross-sectional perspective view taken along the line AA ′ in FIG. 5, and FIG. FIG. 8 is a front view of the circuit unit (a), a bottom view (b) and a CC ′ arrow cross-sectional view (c), and FIG. 9 is a cross-sectional view of the circuit unit shown in FIG. Left side view (a) and DD 'arrow line end view (b), FIG. 10 is a diagram for explaining the procedure when removing the circuit unit from the state of FIG. 9 (b), FIG. 11 is a circuit unit FIG. 12 is a front view showing a state in which the circuit board is mounted in the case body member, and FIG. 12 is a top view showing a state in which the circuit unit is tilted rearward and the lid member is removed.

  The circuit unit 60 includes a circuit board 75 on which main electrical components are mounted, and a flat box-like case 61 that houses the circuit board 75 therein. The case 61 has a flat rectangular parallelepiped shape in which the circuit board 75 is fixed with screws so as to cover the back surface (opposite surface of the component mounting surface) of the circuit board 75, and the entire front surface in the attached state is opened. It consists of a main body member 62 and a lid member 63 that closes the open end surface of the main body member 62. A space is formed in the case 61 by combining the main body member 62 and the lid member 63. This space is formed by a partition wall 64 formed by projecting from the inner surface of the main body member 62 and the inner surface of the lid member 63 that are opposed to each other and contacting the tip thereof, and the substrate storage portion 65 as the substrate placement region in the present invention. It is divided into a lead wire storage portion 66 as a lead wire arrangement region in the present invention.

  The partition wall 64 is provided in the longitudinal direction of the case 61. In this example, the volume ratio of the space between the substrate storage portion 65 and the lead wire storage portion 66 is 3 to 4: 1. The circuit board 75 is housed in the board housing portion 65 so that the component mounting surface faces the lid member 63. The partition wall 64 is provided with internal guide ports 67 and 68 for passing the lead wires at two locations separated from each other as a lead wire passage permission range in the present invention. In addition, external guide ports 69 and 70 for passing the lead wires are provided at two positions apart from each other in the portion corresponding to the lead wire storage portion 66 in the lid member 63, and a power source is provided on the side wall surface of the lid member 63. A guide port 71 for passing the cord is provided.

  The left half of the circuit board 75 in the board housing portion 65 is mainly occupied by the power supply system 85, and a transformer 86 is also housed in a portion of the board housing section 65 adjacent to the power supply system circuit 85. The right half of the circuit board 75 is a control system circuit 87 mainly including the control unit 80 and the load driving unit 81. As shown in FIG. 12, a large number of connectors are soldered on the circuit board 75, and the lead wires drawn out from these connectors are specifically passed through one of the two internal guide ports 67 and 68. In principle, the lead wires are led from the board housing portion 65 into the lead wire housing portion 66 through the inner guide ports 67 and 68 closer to the connector from which each lead wire is drawn, and further passed through the lead wire housing portion 66 as necessary. The case 61 is taken out of the case 61 through one of the external guide ports 69 and 70. In particular, when a lead wire is relayed by a connector in the middle thereof, the connector is disposed in the lead wire housing portion 66.

  In this example, the lead wire branched from the power cord 90 introduced into the case 61 through the guide port 71 and connected to the power circuit on the circuit board 75, and the operation board of the upper surface plate 4 drawn from the case 61 Two connectors 91 and 92 that are a pair of a female connector and a male connector that relay a lead wire extending up to 17 are arranged in the lead wire housing portion 66. In addition, some of the lead wires whose end portions are connected to the circuit board 75 are relayed by a connector on the way, and the connector is accommodated in the lead wire accommodating portion 66.

  In this way, the lead wire storage portion 66 and the substrate storage portion 65 are separately provided, and only through the limited internal guide ports 67 and 68 between the lead wire storage portion 66 and the substrate storage portion 65, the lead wire is passed through. The distance of the lead wire routed on the circuit board 75 is shortened as a whole, and the range through which the lead wire passes can be limited. Thereby, electrical interference between the lead wire and the electrical components on the circuit board 75 and the pattern wiring (printed wiring) is reduced, and noise jumping can be reduced. In addition, the lead wire is less likely to come into contact with an electrical component, and mechanical stress due to contact can be avoided to increase durability and reliability.

  As described above, if each lead wire is pulled out from the substrate housing portion 65 to the lead wire housing portion 66 through the internal guide ports 67 and 68 closer to the connector to which the end portion of each lead wire is connected, the circuit board is provided. 75, the distance of the lead wire passing over 75 is the shortest, but for example, the lead wire that is not the best from the viewpoint of electrical interference and mechanical interference, and other leads that are difficult to route For some lead wires, the inner guide ports 67 and 68 far from the connector to which the end of the lead wire is connected may be allowed to pass.

  Furthermore, a lead wire that does not need to be electrically drawn into the circuit unit 60 is also introduced into the case 61 from one external guide port 69, and from the other external guide port 70 through the lead wire storage portion 66 to the outside of the case 61. Has been drawn to. In this example, the lead wire that directly connects the electrolysis drive unit 57 for driving the electrolysis device attached to the left rear corner of the inner bottom portion of the outer box 1 and the electrolysis device 58 installed at the bottom portion of the outer tub 20, For example, the lead wire whose end is connected to the electrolysis drive unit 57 is the first lead wire in the present invention, and the lead wire whose end is connected to the electrolysis device 58 that does not appear in FIG. 12 is the second lead wire in the present invention. It is. A connector 93 that couples the first lead wire and the second lead wire is housed in the lead wire housing portion 66. These connectors are at the same level as the circuit board 75 and the like, and the waterproofness is guaranteed by the case 61.

  Now, as described above, the circuit unit 60 having the above-described configuration is attached in an upright state, that is, vertically installed so as to close the opening 3c provided in the rear surface portion of the outer box 1 as described above. . The lower edge portion of the circuit unit 60 is fixed by the base portion 2 and the upper edge portion is fixed by the rear plate 5 so as to be sandwiched from above and below, and flanges extending outward from both side surfaces of the body member 62 of the case 61 are provided. A plurality of screws are fixed to the rear edge 3a. At that time, the lid member 63 of the case 61 is located on the inner side of the outer box 1, and the lead wire storage portion 66 is on the lower side. Accordingly, the external guide ports 69 and 70 for introducing or leading the lead wires into or from the circuit unit 60 face the internal space of the outer box 1, and the bundle of lead wires can be easily bundled with the outer tub 20 or the upper surface plate 4. Etc., and are guided toward each direction.

When a service person or the like repairs or inspects the circuit board 75, the rear plate 5 and the screws fixing the circuit unit 60 are removed, and the entire circuit unit 60 is moved backward as shown in FIG. In this state, the lid member 63 is removed from the main body member 62. Then, the mounting surface of the circuit board 75 since the upward, it is possible to easily perform the maintenance work.

  As described above, in the configuration of the washing / drying machine according to the present embodiment, the space for housing the connector for relaying the lead wire is provided inside the waterproof case 61 for housing the circuit board 75. It is not necessary to take waterproof measures for the connector.

  In addition, the lead wire guided to the inner space of the outer box 1 may be arranged in the front-rear direction along the inner side of both side surfaces of the pedestal portion 2. The round hole 201 is formed. Depending on the position of the external drainage groove, either the left or right round hole 201 is penetrated and blocked by the drainage hose, but the other round hole 201 remains open. If the user puts a finger through the round hole 201 and touches the internal lead wire, there is a risk of electric shock or the like. Conventionally, a cap for closing the round hole 201 has been prepared as an accessory. On the other hand, in the washing and drying machine of this embodiment, the lead wire is bound by the clamp portion 202 formed integrally with the pedestal portion 2 and is protected from being touched by the user.

  That is, as shown in FIG. 5, a cram portion 202 whose cross section is shown in FIG. 7A is formed in the upper part inside the round holes 201 on both sides. The clamp portion 202 has a groove 203 for storing the lead wire and a lid portion 205 connected to the inside via a hinge portion 204, and one or a plurality of lead wires 300 are stored in the groove 203. Then, the lid 205 is bent in the direction of the groove 203 with the hinge 204 as an axis. Then, the tab 206 of the lid 205 is fitted into the insertion hole 207 outside the groove 203, and the lead wire 300 is bound by the groove 203 and the lid 205, and even if a finger is inserted through the round hole 201, The lead wire will not be touched.

  Moreover, the said Example is an example, Comprising: Even if it changes suitably, a correction | amendment, and addition in the range of the meaning of this invention, it is clear that it is included by the claim of this application.

The external appearance perspective view of the state which looked at the washing-drying machine by one Example of this invention from diagonally forward upper direction. The external appearance perspective view of the state which looked at the washing-drying machine by a present Example from diagonally backward upper direction. The upper surface top view which shows the state which removed the rear decorative cover and upper cover of the washing-drying machine of a present Example. The schematic side surface sectional view which shows the internal structure of the washing-drying machine of a present Example. The perspective view which shows the state which mounted | wore the base part with the circuit unit in the washing / drying machine of a present Example. FIG. 6 is a cross-sectional perspective view taken along line A-A ′ in FIG. 5. FIG. 6 is a cross-sectional plan view taken along line B-B ′ in FIG. 5. The front view (a), bottom view (b), and C-C 'arrow sectional view (c) of a circuit unit. FIG. 9A is a left side view of the circuit unit shown in FIG. 8 and an end view taken along the line D-D ′. The figure for demonstrating the procedure at the time of removing a circuit unit from the state of FIG.9 (b). The front view in the state where it was in a circuit unit and the circuit board was installed in the case body member. The top view which shows the state which fell the circuit unit back and removed the cover member. The schematic block diagram which shows the connection relation of the electric circuit and electric component in the washing / drying machine of a present Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Outer box 2 ... Base part 201 ... Round hole 202 ... Clamp part 203 ... Groove 204 ... Hinge part 205 ... Cover part 206 ... Claw 207 ... Insertion hole 3 ... Front side board 3a, 3b ... Rear surface edge part 3c ... Opening 4 ... upper plate 5 ... rear plate 6 ... laundry inlet 7 ... upper lid 10 ... front decorative cover 11 ... rear decorative cover 17 ... operation board 18 ... reinforcing plate 20 ... outer tub 21 ... laundry dewatering tub 22 ... main shaft 23 ... pulsator 24 ... Drive shaft 25 ... Main motor 26 ... Power transmission mechanism 261 ... Clutch 27 ... Torque motor 30 ... Drain opening 31 ... Drain pipe 32 ... Drain valve 52 ... Hot air supply unit 521 ... Fan 522 ... Fan motor 523 ... Heater 53 ... Bath water pump 54 ... Water supply valve 55 ... Water level sensor 56 ... Temperature sensor 57 ... Electrolytic drive unit 58 ... Electrolytic device 60 ... Circuit unit 61 ... Case 62 ... Body member 63 ... Cover member 64 ... Cut wall 65 ... board storage part 66 ... lead wire storage parts 67 and 68 ... internal guide port 69 and 70 ... external guide port 71 ... guide port 75 ... circuit board 80 ... control part 81 ... load drive part 82 ... operation part 83 ... Display unit 84 ... Upper lid switch

Claims (7)

A circuit board on which main electrical components for controlling and driving each member arranged in the outer box for performing a washing operation or a washing and drying operation are mounted, and the circuit board is housed inside A washing machine including a circuit unit including:
The internal space of the case is separated into a board placement area in which the circuit board is placed and a lead wire placement area in which a plurality of lead wires are aggregated and extended in parallel. A lead wire passage permission range through which a lead wire can pass is set at a predetermined position on the boundary with the lead wire arrangement region, and the lead wire arrangement region and the outside of the case face the wall surface of the case facing the lead wire arrangement region. Ri formed outside the guide opening is formed with a plurality of through leads between,
About the lead wire which connects each member other than the said circuit unit and an electric circuit, the 1st lead wire which has a male connector in an end part, and the 2nd lead wire which has a female connector in an end part pass through different external guide openings, respectively. The lead connector is pulled into the lead wire placement region, and the male connector and the female connector are joined in the lead wire placement region, and the first lead wire and the second lead wire are connected via the connector joint portion. A washing machine characterized by being connected .   The board placement area and the lead wire placement area are a board storage section and a lead wire storage section partitioned by a partition wall, and the lead wire passage permission range is an internal guide port formed in the partition wall. The washing machine according to claim 1, wherein The case is configured to include a main body member to which the circuit board is fixed, and a lid member that closes the open surface of the main body member. The washing machine according to claim 1 or 2 . The circuit unit has a structure in which the position of the circuit unit is fixed with respect to the outer box in an upright state so that the lead wire arrangement region is on the lower side, and the circuit unit can fall on the outer side of the outer box with the lower end as an axis. The washing machine according to any one of claims 1 to 3 . The washing machine according to claim 4 , wherein a component mounting surface of the circuit board faces upward in a state in which the circuit unit is laid down on the outer side of the outer box. Opening is provided in the rear part of the outer box, claim 1-5 wherein said circuit unit is characterized in that it is mounted to protrude rearward from the rear surface portion of the outer box so as to close the opening The washing machine as described in. A circuit board on which main electrical components for controlling and driving each member arranged in the outer box for performing a washing operation or a washing and drying operation are mounted, and the circuit board is housed inside A washing machine including a circuit unit including:
The case is provided with a plurality of guide openings for passing lead wires, and the lead wires for connecting each member other than the circuit unit and the electric circuit, the first lead wire having a male connector at the end and the female die A second lead wire having a connector at the end is drawn into the case through different guide openings, and the male connector and the female connector are coupled within the case, and the second connector is coupled via the connector coupling portion. 1. A washing machine comprising a lead wire and a second lead wire connected to each other.

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