JP2005061758A - Water supply device and humidifier equipped with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water supply device in which water does not drip when carrying a water supply tank.
SOLUTION: A cap 32 detachably attached to a cylindrical port 30a projecting from the bottom of a water supply tank 3, a communication port 32f formed in the cap 32, and an upper and lower provided extending downward from the communication port 32f. A cylindrical portion 32b penetrating in the direction, a guide ring 32e coaxially supported in the cylindrical portion 32b, a valve rod 34 inserted through the guide ring 32e and slidable in the vertical direction, A water supply valve 36 which is attached to the upper end portion and opens the communication port 32f when ascending and closes the communication port 32f when descending, a spring 35 which constantly biases the valve rod 34 downward, and a bottom portion of the water supply tank 3 includes The tray 4 to be inserted, and a cylindrical member that protrudes from the bottom surface of the tray 4 and contacts the lower end of the valve stem 34 to push up the valve stem 34 against the bias of the spring 35. 43, wherein the side surface of the slide portion 34c of the valve rod 34 has a cross-sectional shape in which the circumference is partially missing in the axial direction in the water supply device for supplying water from the water supply tank 3 to the tray 4 It is characterized by having.
[Selection] FIG.

Description

  The present invention relates to a water supply apparatus and a humidifier equipped with the same.

Conventionally, as shown in FIG. 23, a water supply device 100 provided in a humidifier or the like moves a bowl-shaped water supply valve 101 up and down via a valve rod 103 inserted through a guide ring 102 to open a communication port 104. It was opened and closed, and water was supplied / stopped from the water supply tank 105 to the tray 106.
Japanese Utility Model Publication No. 4-121259

  However, since water remains on the guide ring 102 when the water is stopped, the water hangs down when the water tank 105 is removed from the humidifier body and carried, and the floor is painted, so that cleaning such as wiping is troublesome. There was a problem.

  An object of the present invention is to provide a water supply device in which water does not drip when carrying a water supply tank.

In order to achieve the above-mentioned object, the present invention is provided with a cap that is detachably attached to a cylindrical port protruding from the bottom of a water supply tank, a communication port formed in the cap, and extending downward from the communication port. A cylindrical portion penetrating in the vertical direction, a guide ring that is coaxially supported in the cylindrical portion, a valve rod that is inserted through the guide ring and is slidable in the vertical direction, and is attached to the upper end portion of the valve rod and lifts A water supply valve that sometimes opens the communication port and closes the communication port when lowered, a spring that constantly biases the valve rod downward, a tray into which the bottom of the water supply tank is inserted, and a bottom surface of the tray A water supply device that is provided with a cylindrical member that contacts the lower end of the valve rod and pushes up the valve rod against the bias of the spring, and supplies water from the water supply tank to the tray;
A side surface of the slide portion of the valve stem has a cross-sectional shape in which the circumference is partially missing continuously in the axial direction.

  According to this configuration, a gap extending in the axial direction is formed between the side surface of the slide portion of the valve stem and the inner surface of the guide ring. Even if such a gap is formed, since the circumferential portion remains around the side surface of the slide portion of the valve stem, the valve stem does not rattle when sliding.

  And the missing part of the slide part of the said valve stem can be easily formed by cutting a slide part side surface in strip shape, for example, In this case, the cross-sectional shape becomes a bow shape. Furthermore, if the missing portions are provided at two or more locations on the side surface of the slide portion of the valve stem, a gap between the valve stem and the guide ring is widened.

  According to the present invention, the water collected on the guide ring of the cap immediately after the water supply tank is stopped immediately falls into the tray through the gap formed between the guide ring and the valve stem. Therefore, no water remains on the guide ring, and there is no fear of dripping when carrying the water supply tank.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings, taking a heat vaporizing humidifier as an example. FIG. 1 is a perspective view of the humidifier according to the present invention as seen from the front, and FIG. 2 is a perspective view of the humidifier as seen from behind. The humidifier 1 includes a water supply tank 3 and a tray 4 that can be attached to and detached from the main body 2.

  On the left side surface of the main body 2, a tank mounting wall 2a having an arcuate shape is formed extending in the height direction. The tank mounting wall 2 a provides an open space for mounting the water supply tank 3 on the front side of the main body 2. A space (tray mounting portion 2c) in which the tray 4 is attached to and detached from the back surface of the main body 2 is provided at the lower portion of the main body 2. The tray 4 is mounted on the tray mounting portion 2 c to form a part of the back surface and side surface of the main body 2, and the cylindrical tank insertion portion 41 is exposed on the front right side of the main body 2. The tank mounting wall 2a is formed in the upper part from the height of the tray mounting portion 2c. When the tray 4 is mounted, the tank mounting wall 2a is connected to the arc wall 41b of the tank insertion portion 41 of the tray 4. Yes. At this time, a cylindrical tank mounting portion is formed in the tank insertion portion 41 and in a space above the tank insertion portion 41. The right side surface of the main body 2 is provided with an air inlet 7 having an air filter and having a slit vertically. On the upper surface of the main body 2, an operation unit 8 in which various buttons are arranged on the front side is provided, and an air outlet 9 having a slit on the side is provided on the back side.

  3 and 4 respectively show a schematic exploded perspective view of the main body 2 and the inside thereof. The casing of the main body 2 includes a front panel 21 and a back panel 22. The front panel 21 and the back panel 22 are attached to the partition member 10 with screws (not shown). The tank mounting wall 2a is formed integrally with the partition member 10, and an L-shaped engagement claw 2b is provided at the upper end portion. The partition member 10 partitions the inside of the main body 2 back and forth, and a substantially three-quarter arc-shaped arc wall 10a is extended on the front surface thereof. The arc wall 10 a is connected to a left side wall 10 b and a bottom wall 10 c that are formed integrally with the partition member 10, and constitutes a fan casing 11.

  The partition member 10 is provided with a fan motor mounting hole 10d at the center of the arc of the arc wall 10a, and an air inlet 12 is provided on the outer side thereof on the circumference. Further, the bottom wall 10c is provided with an air outlet 13 having a slit on the side at a portion constituting the fan casing 11. Accordingly, the inner space of the fan casing 11 communicates with the rear space of the partition member 10 through the air inlet 12 and the inside of the tray 4 (the water storage section 42) that is mounted under the bottom wall 10c through the air outlet 13. Communicated with.

  A fan motor 14 is mounted in the fan motor mounting hole 10d. The turbo fan 15 is rotatably attached to the shaft 14 a of the fan motor 14 and is disposed inside the fan casing 11. When the fan motor 14 is driven in this configuration, the turbo fan 15 rotates counterclockwise, air is sucked into the turbo fan 15 from the air inlet 12, and from between the blades 15 a provided on the outer periphery of the turbo fan 15. The air is sent and exits from the air outlet 13 as indicated by an arrow X on the inner surface of the fan casing 11. Most of the air flow follows such a path, but a part is sent into the ion generation chamber 16 through the opening 17 as indicated by an arrow Y.

  A box-shaped ion generation chamber 16 is provided outside the arc wall 10a on the left side wall 10 side. The side wall 16 a and the bottom wall 16 b of the ion generation chamber 16 are connected to the arc wall 10 a, and a part of the arc wall 10 a constitutes the outer wall of the ion generation chamber 16. And the rectangular opening 17 is provided in the part of the circular arc wall 10a.

  On the rear surface of the partition member 10, an electrical component (not shown) such as a control board on which an IC component is mounted and a heater 20 for heating air are incorporated. After these wirings are completed, the motor cover 19 is attached. . The motor cover 19 is provided with an opening 19 a connected to the rear part of the ion generation chamber 16. A rear panel 22 is attached to the back of the motor cover 19, and a space between the motor cover 19 and the rear panel 22 communicates with the inside of the tray 4 (water storage section 42), and an air passage through which an air flow flows from below to above. Is formed. The ion generation chamber 16 communicates with the air flow path in the vicinity of the air outlet 9 through the opening 19a so that positive and negative ions generated in the ion generation chamber 16 can be mixed with humidified air and sent out from the air outlet 9. It has become.

  FIG. 5 is an enlarged perspective view of the vicinity of the ion generation chamber 16 of the partition member 10 as viewed from the back side. As shown in this figure, the ion generation chamber 16 extends beyond the surface of the partition member 10. The ion generation chamber 16 is opened at the rear end. Therefore, the inside of the ion generation chamber 16 communicates with the inside of the fan casing 11 through the opening 17 and communicates with the back space of the motor cover 19 through the opening 19a at the rear. A pair of opposing ribs 16d are provided on the inner surface of the side wall of the ion generation chamber 16, and an ion generator 231 is provided on the ribs 16d. The ion generator 231 is disposed so that the surface having the ion generator is supported by the rib 16d. The lower side of the rib 16d is an air flow path, and the ion generating part faces the air flow path.

  Below, the structure of the ion generator 231 is demonstrated. 18 is an external perspective view seen from the ion generating element 210 side of the ion generator 231, and FIG. 19 is an external perspective view seen from the opposite side of FIG. 18. 20 is an exploded perspective view of the ion generator 231, FIG. 21 is an external perspective view of the ion generator element 210, and FIG. 22 is a cross-sectional view of the ion generator element 210.

  The ion generating element 210 includes a surface electrode 213 provided on the surface of the plate-like dielectric 211, a surface electrode contact 215 provided on the surface of the dielectric 211 to supply power to the surface electrode 213, and a dielectric 211 And an internal electrode contact 214 provided on the surface of the dielectric 211 for supplying electric power to the internal electrode 212. The internal electrode 212 is provided in parallel with the surface electrode 213. The dielectric 211 includes an upper plate 211a, a lower plate 211b, and a surface protection plate 211c.

  The ion generator 231 equipped with the ion generating element 210 having the above-described configuration includes a booster coil 251, a circuit board 252, a common case 253, and a cover plate 254. The step-up coil 251 has a configuration in which a pair of high-voltage terminals and a pair of input terminals protrude from one side of the resin case.

  The circuit substrate 252 is a substrate on which a circuit for generating a driving waveform of the ion generating element 210 is formed on one surface (the lower surface in FIG. 20), and circuit components such as a capacitor and a semiconductor are mounted. Further, on the other side of the circuit board 252, four connection pins for external connection project from the one surface side.

  The common case 253 is a box having a rectangular opening into which the circuit board 252 can be inserted on the entire surface on one side and a bottom having a semicircular cross section on the other side, and the bottom is substantially orthogonal to the longitudinal direction. The partition wall 253a having a predetermined height is divided into a coil housing chamber 253b and a circuit component receiving chamber 253c.

  The inner surface of the common case 253 is provided with a support edge that protrudes inward over the entire circumference and serves as a support portion of the circuit board 252 at a height position that coincides with the upper edge of the partition wall 253a. On the peripheral edge of the opening of the common case 253, recesses for engaging the cover plate 254 are formed at two opposing long sides that are separated from each other.

  The lid plate 254 is a flat plate made of a resin material, and a rectangular recess corresponding to the ion generating element 210 is provided on one side in the longitudinal direction, and the recess of the ion generating element 210 is provided in the recess. A hole 254a in which an oblong window hole penetrating the front and back and a resistor punch hole are integrated is formed so as to correspond to the formation positions of the surface electrode contact 214 and the internal electrode contact 215, respectively.

  The cover plate 254 configured as described above can be held integrally when the ion generating element 210 is fitted into the recess.

  The ion generator 231 is configured by assembling the step-up coil 251, the circuit board 252, and the common case 253 configured as described above and the lid plate 254 to which the ion generating element 210 is fixed as follows.

  First, the step-up coil 251 is inserted into the coil accommodating chamber 253b provided at the bottom of the common case 253 with the protruding side of the high-voltage terminal, ground terminal and input terminal facing upward, and the filling material 255 is evacuated to the coil accommodating chamber 253b. In this way, it is filled and insulated while preventing air bubbles from entering.

  Thereafter, after the filler 255 is dried and solidified, the circuit board 252 is inserted into the common case 253 through the upper opening. In this insertion, the circuit component mounting surface is directed downward, and the four connection holes for connection with the booster coil 251 are aligned above the booster coil 251 fixed to the coil housing chamber 253b, and the circuit board This is performed until the lower surface of 252 abuts against the partition wall 253c and the support edge. After this insertion, the tips of the high-voltage terminal, the ground terminal, and the input terminal protruding from the connection hole are welded from the upper surface of the circuit board 252 to the corresponding positions. By this welding, the circuit board 252 is supported from the lower side by the support edge and the upper edge of the partition wall 253a, and the boosting coil 251 fixed by the filler 255 supports the high-voltage terminal, the ground terminal, and the input terminal. As fixed.

  After the circuit board 252 is thus attached, the lid plate 254 that holds the ion generating element 210 as described above is attached. In this attachment, the hole 254a opened on one side in the longitudinal direction is aligned with the position of the window hole formed in the circuit board 252 previously fixed in the common case 253, and the holding surface of the ion generating element 210 faces upward. The lid plate 254 is aligned with the upper opening of the common case 253. At this time, the locking claws provided on both side edges of the lid plate 254 are bent and deformed, and corresponding recesses provided on the peripheral edge of the opening of the common case 253. The lid plate 254 is attached at a position separated from the upper surface of the substrate 252 by an appropriate length so as to cover the opening of the common case 253.

  After this attachment, the filler 255 is introduced through the window hole 254b opened in the lid plate 254, and the filler 255 is filled in the space between the substrate 252 and the substrate 252 and the ion generating element 210. The ion generator 231 is completed after insulating molding between the two and waiting for the filler 255 to dry and solidify.

  As shown in FIGS. 21 and 22, the surface electrode 213 is formed as a grid electrode in order to increase the amount of ions generated with the application of the drive voltage as much as possible. The internal electrode 212 is formed in alignment with the center of the surface electrode 213 and is a strip electrode having a length and width smaller than that of the surface electrode 213. This shape also contributes to an increase in the amount of ions generated.

  For example, a line width of 0.25 mm is formed on the surface of a dielectric 211 having a size of about 15 mm × 37 mm × 0.9 mm formed by overlapping an upper plate 211a and a lower plate 211b each having a thickness of about 0.45 mm. A grid-shaped surface electrode 213 having a size of about 10.4 mm × 28 mm is formed at a pitch of 0.8 mm, and a size of about 6 mm × 24 mm is formed between the upper plate 211a and the lower plate 211b. A planar internal electrode 212 having a thickness is formed, and a drive voltage of a high voltage current having a frequency of approximately 3.5 KV (peak value) and 90 kHz is applied between them, and is generated between both electrodes 212 and 213. When measured at a position 25 cm away from the ion generating element 210 due to the action of corona discharge, positive ions and negative ions exceeding 200,000 / cc are respectively measured. It was confirmed that emissions will occur. This amount of ion generation is sufficient to function as air cleaning for a room of a general size.

  Next, the structure of the water supply tank 3 will be described. FIG. 6 is a side view showing a part of the water supply tank 3 with the cap 32 removed, and FIG. 7 is a top view of the water supply tank 3. The water supply tank 3 includes a handle assembly 31 attached to the transparent container 30.

  The transparent container 30 is a bottomed cylindrical body made of polycarbonate, and the water level is visible from the outside. The transparent container 30 has a circular tube port 30a for supplying and supplying water at the lower end. A screw thread 30b is provided around the tube opening 30a, and the cap 32 is attached and detached. On the other hand, the upper end portion of the transparent container 30 has a shoulder and has a slightly small diameter, and a screw thread 30d is also provided around the small diameter portion 30c.

  Further, a groove 30e is provided at one place around the transparent container 30 so as to extend in the axial direction from the upper end. The central axis of the tube opening 30a is slightly deviated from the central axis of the cylinder of the transparent container 30, and the tube opening 30a is offset in the direction of the groove 30e when viewed from directly below.

  The handle assembly 31 is made of a resin containing a light color pigment, such as pink, to make the handle assembly 31 stand out, and when the water supply tank 3 is attached to the main body 2, the appearance and color tone of the white main body 2. To be balanced. As will be described later, a lock mechanism is provided between the handle assembly 31 and the tank mounting wall 2a so that the water supply tank 3 does not fall down.

  The handle assembly 31 includes three parts: an upper cap 37, a handle cap 38, and a tank upper cap 39. The upper cap 37 is formed in a bowl shape having a depression 37a having a shape substantially corresponding to the depression 30f on the upper surface of the transparent container 30, and includes an edge portion 37b around the depression 37a and a wall 37c around the edge portion 37b. ing. The wall 37c is cut so as to avoid the claw 38d of the handle cap 38 placed on the upper cap 37, leaving an edge portion 37b at one place, and transparent so that the cut portion 37d is located on the groove 30e. The container 30 is placed in alignment with the recess 30f on the bottom surface. Since the transparent container 30 is a transparent cylindrical body, the inside of the transparent container 30 is formed from the semicircular opening 38c of the handle cap 38 by covering the bottom surface of the transparent container 30 with the tank cap 37 made of colored resin in this way. I'm trying not to look into

  The handle cap 38 is a dome-shaped member. The diameter of the entire circumference of the handle cap 38 is selected to be approximately the same as the diameter of the entire circumference of the edge portion 37b formed on the surface side of the upper cap 37 and the edge portion of the wall 37c, and the dome portion 38a The inclination is set so that the back surface is in close contact with the surface of the edge 37 b of the upper cap 37. The dome portion 38a is provided with a semicircular opening 38c. The handle cap 38 is provided with an annular tooth 38b that protrudes to the surface side on the entire circumference, and an L-shaped claw 38d at one location around the handle cap 38. The claw 38d is provided at a position where a line segment connecting the center of the dome portion 37a and the midpoint of the arc of the opening 37c is extended. The handle cap 38 is placed on the tank cap 37 so that the claw 38d is aligned with the position of the cut portion 37d and fits inside the wall 37c. Thereby, the claw 38d and the groove 30e are engaged, and the handle cap 38 is positioned.

  The tank upper cap 39 is a dome-shaped lid, and is provided with a large circular opening 39b in the dome portion 39a. The opening 39 a is sized to include the opening 38 c of the handle cap 38, and annular teeth 39 d that protrude toward the back side of the tank upper cap 39 are provided on the entire circumference of the opening 39 a. The diameter of the outer periphery of the annular tooth 39d is selected to match the diameter of the inner periphery of the annular tooth 38b. Further, a thread groove 39e is cut in the inner surface of the surrounding circumferential wall 39c. The tank upper cap 39 is screwed into the small diameter portion 30 c of the transparent container 30 from above the handle cap 38. As a result, the annular teeth 38b and 39d are engaged with each other, and the handle cap 38 and the upper cap 37 are pressed at the tip of the annular teeth 39d, so that the handle assembly 31 is securely attached.

  The handle assembly 31 attached in this way looks like the dome portion 38a and the opening 38c of the handle cap 38 from the opening 39a of the tank upper cap 39, and the depression 37a of the upper cap 37 can be seen under the opening 38c. A portion of the circumferential wall 39c of the tank upper cap 39 that overlaps the groove 30e of the transparent container 30 serves as an engaging portion 3a of the engaging claw 2b of the main body 2, and the engaging claw 2b is hooked on the back side so that the water supply tank 3 Can be locked. When the water supply tank 3 is lifted, four fingers are inserted through the opening 38c of the handle cap 38 and the dome portion 38a is gripped with good hand.

  When attaching the water supply tank 3 to the main body 2, the cap 32 is closed to the tube opening 30a, the handle assembly 31 is held as a handle, the water supply tank 3 is brought close to the tank mounting wall 2a, and the engaging claw 2b is fitted into the groove 30e. The water supply tank 3 is lowered while sliding the engagement claw 2b using the groove 30e as a guide. Thereby, the latching | locking part 3a and the engaging claw 2b can engage, and the water supply tank 3 can be mounted | worn with the main body 2. FIG. Moreover, in the tank insertion part 41 of the tray 4, the lower end part of the water supply tank 3 including the cap 32 is inserted.

  8 is a top view of the cap 32, FIG. 9 (a) is a side view showing a part of the cap 32 in a crushed state, and FIG. 9 (b) is a sectional view taken along line xx. . The cap 32 has a hollow shape on the inside in the radial direction, and has a cylindrical portion 32b that protrudes in a cylindrical shape from the center of the concave portion 32a. The periphery of the depression 32a has a hill-shaped cross section, and an annular water supply packing 33 is provided on the inner surface of the hill 32c to prevent water leakage. A crosspiece 32d is provided so as to protrude from a substantially central portion in the axial direction of the cylindrical portion 32b so as to face the inner surface. The crosspiece 32d supports the guide ring 32e at the center of the cylindrical portion 32b at its tip.

  A valve stem 34 is inserted through the guide ring 32e. The valve rod 34 is provided with a groove 34a around a tapered one end (tip) side, and a disc-shaped spring retainer 34b is provided at the other end. The valve rod 34 is inserted into the guide ring 32e from the upper surface side of the cap 32 with the compressed water supply valve spring 35 sandwiched between the spring retainer 34b and the guide ring 32e. Then, a bowl-shaped EPDA water supply valve 36 is fitted in the groove 34a.

  The water supply valve 36 is urged toward the upper surface side of the cap 32 by the water supply valve spring 35, and is in contact with the base edge portion (communication port) 32f of the cylindrical portion 32b on the outer surface of the flange portion 36a. The slide portion 34c of the valve stem 34 inserted through the guide ring 32e has a diameter approximately equal to the hole diameter of the guide ring 32e so that the valve stem 34 does not rattle when sliding.

  FIG. 10 is a perspective view of the valve stem 34, and FIG. 11 is a cross-sectional view of the slide portion 34c. The side surface of the slide portion 34c of the valve stem 34 has a cross-sectional shape partially missing at two locations where the circumferences continuously face in the axial direction. The missing portion 34d has an arcuate cross-sectional shape and can be easily formed by cutting the side surface of the slide portion 34c into a strip shape. Thereby, as shown in FIG.9 (b), it extends in an axial direction between the slide part 34c side surface of the valve rod 34, and the guide ring 32e inner surface, and a clearance gap is made. Even if such a gap is formed, since the circumferential portion remains around the side surface of the slide portion 34c of the valve rod 34 except for the missing portion 34d, the valve rod 34 does not rattle when sliding.

  A screw groove 32 h is cut in the inner surface of the outer peripheral portion 32 g of the cap 32, and the cap 32 can be attached to and detached from the transparent container 30 by being screwed into a screw thread 30 b provided around the tube port 30 a of the transparent container 30. Can be attached.

  Next, the structure of the tray 4 will be described. FIG. 12 is a perspective view of the tray 4. The tray 4 is an integrally molded product made of a resin including a bottomed cylindrical tank insertion portion 41 and a dish-shaped water storage portion 42. When the tray 4 is mounted on the tray mounting portion 2c of the main body 2, the portion exposed to the outside of the main body 2 is the tank insertion portion 41, and the water storage portion 42 is formed in the portion hidden inside the main body 2. .

  FIG. 13 is an enlarged perspective view of the tank insertion portion 41. The tank insertion portion 41 has a circular wall 41a in the periphery, and is formed so that approximately half of the entire circumference of the wall 41a is high as an arc wall 41b. The bottom surface of the tank insertion portion 41 is formed with a water channel 41c extending in a C shape from the inner surface to the inner surface of the arc wall 41b at the lowest position. An opening 41d is provided at the boundary between the tank insertion part 41 and the water storage part 42 at the bottom of the arc wall 41b, and the water channel 41c communicates with the water storage part 42 through the opening 41d. Further, a float 43 is provided in the water channel 41c.

  A circular base 41e that is one step higher than the water channel 41c is formed on the bottom surface of the tank insertion portion 41. A cylinder 43 is erected at the center of the circular base 41e. When the water supply tank 3 is attached to the main body 2, as shown in FIG. 14, the cylinder 43 pushes the spring retainer 34 b of the valve rod 34 against the urging force of the water intake valve spring 35, and the water intake valve 36 is opened to be transparent. The water in the container 30 flows down into the tank insertion part 41, flows through the water channel 41c, and a certain amount of water is stored in the water storage part 42. When the water in the tank insertion portion 41 reaches a predetermined water level, the float 43 (see FIG. 13) is actuated to push up the water supply tank 3 as shown in FIG. The water supply valve 36 is closed and the water is stopped. The water collected on the guide ring 32e immediately after the stop of water immediately falls into the tray 4 through a gap formed between the guide ring 32e and the valve stem 34. Therefore, no water remains on the guide ring 32e, and there is no fear of dripping when the water supply tank 3 is carried.

  Around the round base 41e, a donut-shaped plane is formed in two stages in a portion excluding the water channel 41c, and the outer higher plane constitutes the mounting base 41f of the transparent container 30. And the recess formed inside the mounting base 41f forms the cap accommodating part 41g in which the cap 32 of the water supply tank 3 is accommodated.

  On the bottom surface of the water storage section 42, a rectangular recess that is long in the left-right direction is provided at the center in the front-rear direction, and a filter mounting portion 42a for mounting the humidifying filter assembly 5 is formed around the recess. The bottom surface of the filter mounting portion 42a on which the humidifying filter assembly 5 is placed has a step according to the shape of the bottom surface of the humidifying filter assembly 5, and a recess that is one step deeper in the filter mounting portion 42a. The sheet tray 53 of the humidifying filter assembly 5 is accommodated in 42b.

  The configuration of the humidifying filter assembly 5 will be described. FIG. 16 is an exploded perspective view of the humidifying filter assembly 5. A bellows-like water absorption filter 52 is accommodated in the frame of the filter case 51 which is a rectangular parallelepiped frame. On the bottom surface of the filter case 51, an attaching / detaching piece 51b extending like a lid is extended. A sheet tray 53 is attached to the inner surface of the detachable piece 51b. Two square holes 51c are provided on the front surface of the detachable piece 51b in the left-right direction.

  The sheet tray 53 is a box-shaped member whose upper surface is open. The side surface of the sheet tray 53 has a shape in which a central portion is cut into a rectangle, and water can enter the sheet tray 53 from the cut portion 53a. After the composite sheet 6 is placed, the sheet tray 53 is attached to the filter case 51 by engaging two claws 53b provided in the upper surface opening with the square holes 51c of the detachable piece 51b. The attached sheet tray 53 is configured such that when a finger is put into the cut portion 53a and a downward force is applied, the claw 53b is detached and removed, and the composite sheet 6 can be replaced.

  The structure of the composite sheet 6 will be described. FIG. 17 shows a cross-sectional view of the composite sheet. The composite sheet 6 is formed by laminating a water-softening sheet 62 on a deodorizing sheet 61, covering a front and back with a water-permeable packaging sheet 63, and bonding the peripheral edge portion. Specifically, a three-kind five-layer sheet method using the following materials is adopted.

  That is, the deodorizing sheet 61 uses the product name “Kura Sheet (Product No. 1000, size 125 mm × 47 mm, thickness 3 mm)” manufactured by Kuraray Chemical Co., Ltd. This deodorizing sheet is a black sheet obtained by adding activated carbon to a polyurethane foam nonwoven fabric, and has a function (deodorizing action) to reduce the water odor (residual chlorine) and mold odor (geosmin, 2-methylisoborneol). Further, the softening sheet 62 uses a product name “Selgaia (product number CGANP-2001, size 125 mm × 47 mm)” manufactured by Rengo Co., Ltd. in an overlapping manner. This softening sheet is an antibacterial and mildewproof light green sheet in which copper zeolite is added to a nonwoven fabric of pulp, adsorbs metal ions (calcium ions, magnesium ions, etc.) in tap water (softening), and concentrates It works to suppress the generation of scale. Moreover, the catechin nonwoven fabric (product number MF080T-BK, size within 137.2 mm * less than 59.2 mm) made from Kanai Important Industry Co., Ltd. is used for the packaging sheet 63. FIG. This packaging sheet is a white sheet obtained by adding oyster catechin to polyester, and reinforces the deodorizing sheet 61 and the water softening sheet 62 with water resistance. Moreover, since it is antibacterial, the growth of bacteria and mold on the packaging sheet 63 is suppressed.

  By incorporating such a composite sheet 6 into the water absorption filter, the odor and odor of the water stored in the tray 4 are deodorized, the generation of scale due to concentration is suppressed, and further contained in the zeolite. Bacteria and mold growth can be suppressed by the action of copper ions. Therefore, an unpleasant odor during operation of the humidifier can be prevented, and contamination inside the tray 4 can be suppressed to facilitate cleaning and the like.

  When the humidifier 1 is operated with the above configuration, the turbo fan 15 is driven, and the air inlet 12 from the suction port 7, the inside of the fan casing 11, the air outlet 13, the water storage part 42 of the tray 4, and the back space of the motor cover 19. A blower passage is formed in the order of the air outlet 9, and an air flow flows through this blower passage. In the water storage part 42, the vaporization of water is promoted from the surface of the water absorption filter 52, and moist air is supplied to the living space. At this time, when the heater 20 is energized, the air flowing on the surface of the water absorption filter 52 is heated, and the amount of humidification can be increased. Further, by driving the ion generator 231, positive and negative ions can be supplied together with humidified air, and bacteria floating in the air can be sterilized by the positive and negative ion action.

  The water supply device of the present invention can be used by being mounted on a device (for example, a humidifier) that supplies water from a water supply tank to a tray and vaporizes water in the middle of a ventilation passage in the main body.

These are the perspective views seen from the front of the humidifier which concerns on this invention. FIG. 3 is a perspective view of the humidifier as seen from behind. These are the schematic perspective views of the main body of the humidifier. FIG. 2 is a schematic exploded perspective view of the inside of the main body. FIG. 3 is a perspective view showing the vicinity of an ion generation chamber on the back surface of a partition member inside the main body. FIG. 3 is a side view showing a part of a water supply tank in a crushed state. These are top views of the water supply tank. Is a top view of the cap of the water tank (A) is the side view which crushes and shows a part of the cap, FIG.9 (b) is the xx sectional view taken on the line. FIG. 3 is a perspective view of a valve stem. These are sectional drawings of the slide part of the valve stem. FIG. 3 is a perspective view of a tray. FIG. 3 is an enlarged perspective view of a tank insertion portion of the tray. These are sectional drawings of a humidifier principal part, and show the state where a water supply valve is opened and water is supplied to the tray from the water supply tank. These are sectional drawings of the humidifier main part, and show a state where the water supply valve is closed and water is stopped. FIG. 3 is an exploded perspective view of a humidifying filter assembly. FIG. 3 is a cross-sectional view of a composite sheet incorporated in the humidifying filter assembly. These are the external appearance perspective views which looked at the ion generator from the ion generating element side. FIG. 2 is an external perspective view of the ion generator as viewed from the side opposite to the ion generating element. FIG. 3 is an exploded perspective view of the ion generator. FIG. 2 is an overview perspective view showing an ion generating element in the ion generator. These are sectional drawings which show the ion generating element in the ion generator. These are sectional drawings of an example of the conventional water supply apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Humidifier 2 Main body 3 Water supply tank 4 Tray 5 Humidification filter assembly 6 Composite filter 7 Suction port 8 Operation part 9 Outlet 15 Turbofan 20 Heater 32 Cap 32b Tube part 32e Guide ring 32f Edge part (communication opening)
34 valve rod 34c slide part 34d missing part 41 tank insertion part 42 water storage part 52 water absorption filter 61 deodorizing sheet 62 water softening sheet 63 packaging sheet 231 ion generator

Claims (4)

A cap that is detachably attached to a cylindrical port protruding from the bottom of the water supply tank, a communication port formed in the cap, a cylindrical portion that extends downward from the communication port and penetrates in a vertical direction, and the cylinder A guide ring that is coaxially supported in the section, a valve rod that is inserted through the guide ring and is slidable in the vertical direction, and is connected to the upper end of the valve rod and opens the communication port when it is raised, and the communication when it is lowered A water supply valve that closes the mouth, a spring that constantly urges the valve rod downward, a tray into which the bottom of the water supply tank is inserted, and a bottom surface of the tray that protrudes from the bottom of the valve rod A columnar member that pushes up the valve rod against the urging force of the spring, and a water supply device that supplies water from the water supply tank to the tray,
The water supply device according to claim 1, wherein the side surface of the slide portion of the valve stem has a cross-sectional shape in which the circumference is partially missing continuously in the axial direction.   The water supply device according to claim 1, wherein a cross-sectional shape of the missing portion of the slide portion of the valve stem is an arcuate shape.   The water supply device according to claim 2, wherein the missing portions are provided at two or more locations on a side surface of the slide portion of the valve stem.   The humidifier provided with the water supply apparatus in any one of Claims 1-3.

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