JP4702845B2 - Range food - Google Patents

Description

  The present invention relates to a range hood that discharges oily smoke generated indoors during cooking to the outside and introduces external air into the room.

  Conventionally, a range hood has been installed in the upper part of the heating cooker on the wall and ceiling of the kitchen to discharge oil smoke generated indoors during cooking and to introduce clean external air into the room. Thus, the interior of the room is prevented from becoming a negative pressure (see, for example, Patent Document 1). This range hood is provided with a hood made of a box provided with an exhaust fan.

And an air supply discharge port is provided in front of the cooking table so that air from the outside is discharged toward the hood body, and the external air discharged from the air supply discharge port includes oil smoke generated during cooking. It is configured to be discharged from the hood body together with air.
JP-A-6-207729

  However, in the conventional range hood described above, air is discharged from the air supply / discharge port provided in front of the cooking table toward the upper hood body, so that the hood while the air containing oil smoke rises There is a problem that it is easy to leak from the main body.

  The present invention has been made to address the above-described problems, and an object of the present invention is to provide a range hood capable of effectively suppressing leakage of air containing oily smoke from the hood body and effectively ventilating. That is.

In order to achieve the above-described object, the structural features of the range hood according to the present invention include a hood main body installed above the heating cooker, and an exhaust for exhausting indoor air sucked through the hood main body to the outside. In a simultaneous supply / exhaust range hood provided with a device and an air supply device having an air supply chamber for introducing outside air into the room, the air supply chamber is formed in a substantially square box shape having a long left and right direction and a low height. The upper surface of the horizontal chamber is composed of a horizontal chamber portion and a pair of box-shaped vertical chamber portions formed on a vertical surface that extends upward from both sides of the horizontal chamber portion and whose outer surface is orthogonal to the bottom surface of the horizontal chamber portion. the connection hole can be connected to the air supply electric shutter provided on the outer surface of the central and the pair of vertical chambers, the front side portion of the upper surface of the full over de body, toward the front side downwardly lowered in The air supply chamber is installed on the rear side of the front side portion on the upper surface of the hood body, and the left and right direction along the front side portion is near the front side portion on the front surface of the air supply chamber. When the outside air is introduced into the room through the air inlet, the air curtain flows downward along the upper surface of the front portion of the hood body, and the inside of the hood body The indoor air sucked in is prevented from leaking from the hood body.

  The range hood of the present invention configured as described above is formed so that the upper surface front side portion of the hood main body descends downward toward the front side, and on the rear side of the front side portion of the upper surface of the hood main body. Since the air supply chamber with the air supply port extending in the left-right direction is provided, when external air is introduced into the room through the air supply port, the air is lowered along the upper surface of the front side portion of the hood body. Flowing into.

  For this reason, an air curtain is formed in the front lower part of the hood main body, and indoor air containing oil smoke or the like sucked into the hood main body from below the hood main body by this air curtain may leak from the opening of the hood main body. Is prevented. In addition, the outside air introduced into the room through the air supply port is usually cold air and has a lower temperature than the room air, so that air containing oil smoke rising from the heating cooker is suppressed from above. The air containing oily smoke and the like is more reliably guarded and urged toward the inside of the hood body.

  Further, another structural feature of the range hood according to the present invention is that the front portion is formed as a curved portion that curves from the upper side to the lower side of the front portion with the upper surface protruding. For this reason, since the air introduced into the room from the air supply port becomes easier to follow along the front portion, the air curtain can be more effectively formed below the front portion of the hood main body.

  In addition, another structural feature of the range hood according to the present invention is a frame-like shape having a predetermined height surrounding the upper rear portion of the hood body on the rear side of the front portion of the upper surface of the hood body. The duct cover is installed, and a plurality of air supply holes for guiding the air sent out from the air supply port to the front side portion are provided in the lower side portion of the front surface of the duct cover.

  A part of the air supply device and the exhaust device is installed on the upper surface of the rear side portion of the hood body. By installing a duct cover on the upper surface of the rear portion of the hood main body, the air supply device and the exhaust device are externally attached. It disappears and the aesthetics improve. In addition, since a plurality of air supply holes are provided in a portion corresponding to the front part of the air supply port of the air supply chamber constituting a part of the air supply device in the duct cover, the air is discharged from the air supply port of the air supply chamber. The air thus surely flows to the front side portion of the front upper surface of the hood body through the air supply hole, and an appropriate air curtain can be formed. For this reason, the indoor air containing oil smoke etc. can be reliably guide | induced to the inside of a hood main body.

  Still another structural feature of the range hood according to the present invention is that the height of the duct cover can be adjusted by moving the duct cover forward and backward from the cover body and the upper end of the cover body. It consists of an adjustment cover.

  According to this, when attaching a range hood, it can prevent that a clearance gap arises between the upper end part of a duct cover, and a ceiling surface. That is, when the length between the upper surface of the hood main body and the ceiling surface is large, the gap between the upper end portion of the duct cover and the ceiling surface is made to protrude largely upward from the upper end portion of the cover main body. Can be eliminated. When the length between the upper surface of the hood main body and the ceiling surface is small, the upper end portion of the duct cover can be formed by protruding the height adjustment cover slightly upward or without protruding from the upper end portion of the cover main body. And the gap between the ceiling and the ceiling surface can be eliminated.

  Hereinafter, the range hood which concerns on one Embodiment of this invention is demonstrated in detail using drawing. FIG. 1 shows a kitchen unit 10 provided in a kitchen and a range hood 20 according to the embodiment installed above the kitchen unit 10. The kitchen unit 10 is disposed along the wall surface 11 and is formed in a rectangular box shape having a longer width in the left-right direction. Moreover, the upper surface of the kitchen unit 10 is comprised by the plate-shaped counter 12, and the heating part 13a provided in the upper part of the gas range 13 as a heating cooker is arrange | positioned at the one end side in the upper surface of the counter 12. ing. A sink 15 having a faucet 14 is provided on the other end side of the gas range 13 on the upper surface of the counter 12. And in the kitchen unit 10, various accommodating parts are formed, and the door 16a, the drawer 16b, etc. are provided in the surface.

  A range hood 20 is installed above the gas range 13 on the wall surface 11 so as to face the heating unit 13 a of the gas range 13. The range hood 20 includes a hood main body 21 and an air supply / exhaust box 25. Inside the hood main body 21 and the air supply / exhaust box 25, as shown in FIGS. An exhaust device 30 for exhausting outside and an air supply device 40 for introducing external air into the room are housed. Although omitted in FIG. 1, a wall surface 17 (see FIG. 5) orthogonal to the wall surface 11 is located on the right side of the kitchen unit 10 and the range hood 20.

  The outer portion 22 of the hood main body 21 has an upper edge from the front end edge of the side surface portions 22a and 22b in a state of being spanned between the side surface portions 22a and 22b arranged parallel to each other with a space therebetween and the side surface portions 22a and 22b. The cover 22c extends to the rear end of the rear part and then extends toward the lower end of the rear part. As shown in FIGS. 5 and 6, the inner surface of the hood main body 21 is a boundary between the curved surface portion KM at the front portion of the cover 22c and the flat portion HM at the upper portion in a state of being stretched over the side surface portions 22a and 22b. It is comprised with the guide plate 23 extended from the part to the rear-part lower end of the cover 22c. The side portions 22a and 22b are formed in a substantially rectangular shape with the rear side being a little longer in the front-rear direction as viewed from the side, the upper portion on the front side is formed in a shape that is divided into a quarter, and the lower end edge is the front end portion. It is formed in the elongate downward inclined surface which goes to the rear side.

  Further, the cover 22c is curved in a state where the upper surface side protrudes along the edge of the upper part on the front side of the side surfaces 22a and 22b and extends rearward, and then extends along the upper edge of the side surfaces 22a and 22b. And a plate-like body extending downward along the rear edge of the side surface portions 22a and 22b. The guide plate 23 extends from the connecting portion with the cover 22c (the boundary portion between the curved surface portion KM and the flat surface portion HM of the cover 22c) so as to draw an arc with the upper surface protruding backward and downward. Further, it is composed of a streamlined plate-like body that is curved so that the lower surface protrudes and extends smoothly backward. Therefore, the lower end portion of the hood main body 21 opens toward the gas range 13, and the lower surface of the hood main body 21 is formed in a concave portion that is recessed upward.

  When oil smoke or the like is generated by using the gas range 13 and the oil smoke or the like rises, the oil smoke or the like is guided to the upper front side portion of the inner surface of the hood main body 21 by the curved surface KM of the guide plate 23 or the cover 22c. . Further, the side portions 22a and 22b are configured by a panel having a predetermined width in which a space portion (not shown) is formed, and a hole is formed in a front side portion of each inner surface. A filter 24 is attached to the hole.

  And the lighting fixture 23a is attached to the lower center of the guide plate 23, and the operation panel 23b provided with various switches etc. is attached to the front part side in the lower surface of the side part 22b. Further, the space inside the side surface portions 22a and 22b communicates with the rear space portion in the hood body 21 surrounded by the side surface portions 22a and 22b, the cover 22c and the guide plate 23, and the cover 22c in the space portion is in communication with the space. A suction device 31 including a motor 31a and a sirocco fan 31b is attached to the inner surface of the rear surface portion.

  As shown in FIGS. 7 and 8, the air supply / exhaust box 25 includes a frame 26 formed by assembling a plurality of frame members into a rectangular frame shape, and one surface of the frame 26 (the right side surface of FIGS. 7 and 8). And a duct cover 27 that covers a peripheral surface excluding a surface that faces the wall surface 17). The frame 26 is fixed to the flat portion HM of the hood body 21 by a fixing member (not shown), and the duct cover 27 can be attached to the frame 26 by sliding the frame 26 from the left side to the right side. ing. In addition, a frame side 26 b having a notch recess 26 a is fixed to the lower front portion of the frame 26.

  The duct cover 27 includes a cover body 27a that is formed in a U shape in plan view, and a height adjustment cover 27b that is assembled to the cover body 27a so as to protrude upward from the upper end of the cover body 27a. Has been. A plurality of air supply holes 28a are formed in a portion corresponding to the notch recess 26a of the frame side 26b in the lower front surface of the cover main body 27a, and similar air supply holes 28b are formed in the lower rear surface of the cover main body 27a. Has been.

  Further, slide stoppers 27c extending vertically are attached to both side portions of the inner surfaces of the front surface and the rear surface of the cover main body 27a, respectively, with the upper side being spaced from the inner surface of the cover main body 27a. The height adjustment cover 27b is installed between the inner surface of the cover body 27a and the slide stopper 27c so as to be slidable in the vertical direction. The height adjustment cover 27b is fixed to the cover main body 27a by a fixing screw (not shown) in a state where the height adjustment cover 27b is adjusted to a predetermined height with respect to the cover main body 27a, and changes the mounting position of the fixing screw. Thus, the height of the upper end portion of the duct cover 27 can be adjusted to the height of the ceiling.

  Further, the connection for connecting the exhaust L-shaped duct 32 to the rear portion of the flat portion HM of the cover 22c slightly to the left side (in the direction away from the wall surface 17) from the center in the left-right direction in the supply / exhaust box 25. A hole (not shown) is provided. And the suction device 31 provided in the rear part in the hood main body 21 is connected to the connection hole of the flat part HM of the cover 22c via the casing 33, and the L-shaped duct 32 is connected to the connection hole of the cover 22c. It is connected to the casing 33 via the part. The L-shaped duct 32 extends upward from the connecting hole and then bends and extends to the wall surface 17 side. An exhaust electric shutter 34 is attached to the distal end portion of the L-shaped duct 32, and the extension duct 35 extends to the outside through a hole (not shown) provided in the wall surface 17 at the distal end portion of the exhaust electric shutter 34. Is connected.

  The exhaust electric shutter 34 includes a cylindrical portion 34a connected to the L-shaped duct 32, and a shaft portion 34b that is attached to the inner surface of the cylindrical portion 34a so as to extend in the diameter direction and is rotatable in the direction around the axis. , And a rotating plate 34c attached to the shaft portion 34b. The rotating plate 34c is configured by a disc whose diameter is set to be slightly smaller than the inner diameter of the cylindrical portion 34a, and the shaft portion 34b is a cylindrical portion that is rotatable in the direction around the axis by the operation of a motor (not shown). It is attached in 34a. For this reason, opening and closing can be performed by operating the motor and rotating the rotating plate 34c together with the shaft portion 34b.

  The suction device 31, the casing 33, the L-shaped duct 32, the exhaust electric shutter 34, and the extension duct 35 constitute the exhaust device 30 according to the present invention. Then, the motor 31a of the suction device 31 is operated to rotate the sirocco fan 31b, and the air containing the smoke and the like generated in the room is sucked into the hood body 21, and the suction device 31, the casing 33, the L-shaped duct 32, the exhaust electric shutter 34 and the extension duct 35 can be passed through and discharged to the outside.

  In addition, an air supply chamber 41 is provided at the center front in the left-right direction in the air supply / exhaust box 25 on the upper surface of the flat portion HM of the cover 22c. The air supply chamber 41 is configured as shown in FIG. 9 and is attached to the flat surface portion HM of the cover 22 c via the chamber holder 42. That is, the chamber holder 42 is formed of a rectangular plate that is elongated in the left-right direction, and is formed with symmetrical rail portions 42a, 42b that extend upward on the left and right sides and then extend outward in the horizontal direction. Has been. And the chamber holder 42 is being fixed to the plane part HM of the cover 22c with the fixing member (not shown).

  The air supply chamber 41 includes a substantially rectangular box-shaped horizontal chamber portion 43 that is long in the left-right direction and low in height, and a pair of vertical chamber portions 44 and 45 that extend upward from both sides of the horizontal chamber portion 43. ing. In addition, rail portions 41 a and 41 b that can be engaged with corresponding portions of the rail portions 42 a and 42 b of the chamber holder 42 are formed at the lower edge portions on both sides of the air supply chamber 41. Then, the air supply chamber 41 is slid backward from the front to the predetermined position of the chamber holder 42 with one end of the rail portions 41a and 41b engaged with the corresponding other end of the rail portions 42a and 42b, respectively. The air supply chamber 41 is attached to the flat surface portion HM of the cover 22c via the chamber holder 42 by installing and fixing the corresponding portions of the rail portions 41a and 41b and the rail portions 42a and 42b with screws 42c. ing.

  The front surface of the horizontal chamber portion 43 is formed in the air supply port according to the present invention, and the air supply port frame-shaped fixing edge portion 43a is fixed to the chamber holder 42 by screws 43b. And the horizontal chamber part 43 is arrange | positioned in the flame | frame 26 in the plane part HM of the cover 22c in the state which located the edge part 43a for fixation in the notch recessed part 26a of the frame side 26b. In addition, a connection hole 43c to which the air supply electric shutter 46 can be connected is formed in the center of the flat portion HM of the horizontal chamber portion 43. The connecting hole 43c is used when the range hood 20 is installed with the exhaust direction facing the upper surface (ceiling surface). In the range hood 20, a lid member (not shown) is used. Blocked.

  The vertical chamber portion 44 is formed in a box shape extending upward from the left end portion of the horizontal chamber portion 43, and an outer surface (not shown) is formed on a vertical surface orthogonal to the bottom surface of the horizontal chamber portion 43. And the hole for connection (not shown) which can connect the air supply electric shutter 46 is formed in the outer surface. This connecting hole is used when the range hood 20 is installed on the wall surface with the exhaust direction of the range hood 20 directed to the left side surface (wall surface). In the range hood 20, the range hood 20 is blocked by a lid member. The An air supply electric shutter 46 is connected to the connection hole 45 b of the vertical chamber portion 45. In addition, an extension duct 47 that extends through the hole 17 a provided in the wall surface 17 is connected to the tip of the air supply electric shutter 46.

  The air supply electric shutter 46 has a configuration similar to that of the exhaust electric shutter 34, and a cylindrical portion 46a connected to the connection hole 45b and a shaft attached to extend in the diameter direction inside the cylindrical portion 46a. It is comprised by the part 46b and the rotating plate 46c attached rotatably in the cylindrical part 46a centering | focusing on the axial part 46b. The shaft portion 46b and the rotating plate 46c are also attached so as to be rotatable around the shaft portion 46b by the operation of a motor (not shown). The motor is operated to connect the rotating plate 46c together with the shaft portion 46b. The opening of the cylindrical portion 46a can be opened and closed by rotating it by a predetermined angle.

  The extension duct 47, the air supply electric shutter 46, the air supply chamber 41, and the plurality of air supply holes 28a provided in the lower front portion of the cover body 27a constitute the air supply device 40 of the present invention. For this reason, when the indoor air becomes negative pressure, the outside air passes through the extension duct 47, the air supply electric shutter 46, and the air supply chamber 41 and is introduced into the room through the air supply hole 28a. In addition to the devices described above, the range hood 20 according to the present embodiment includes an electrical box 48 installed in the hood body 21 and a power cord that extends from the electrical box 48 to the outside through the upper surface of the hood body 21. 49 is also provided.

  In this configuration, removal of oily smoke and the like generated during cooking from the room to the outside and introduction of the outside air into the room are performed as follows. First, a switch (provided on the operation panel 13b in front of the gas range 13) of the gas range 13 with a pan or the like (not shown) containing ingredients on the heating unit 13a of the gas range 13 is placed. Is turned on to heat the pan or the like containing the ingredients, and a predetermined switch (switch for the motor 31a and the illumination tool 23a) of the operation panel 23b provided on the hood body 21 is turned on.

  As a result, oil smoke or the like is generated from the pan or the like. These oil smoke and the like try to diffuse around the pan and the gas range 13, but most of them are sucked into the range hood 20 by the operation of the suction device 31. In this case, as shown by an arrow a in FIG. 6, the air containing smoke or the like in the room rises and enters the opening of the hood body 21 from below the hood body 21 and converges so as to wind a vortex. Then, it passes through the filter 24 from the opening of the hood body 21 and is sucked into the rear part of the hood body 21. Next, the suction device 31 passes through the casing 33 and the L-shaped duct 32 and proceeds into the exhaust electric shutter 34. Then, the air passes through the exhaust electric shutter 34 and is discharged from the extension duct 35 to the outside.

  Further, when the indoor air is discharged to the outside and the indoor air becomes negative pressure, the external cold air is introduced from the extension duct 47 to the air supply electric shutter 46. Then, the air passes through the air supply electric shutter 46 and enters the vertical chamber portion 45 of the air supply chamber 41. The air is guided downward by the inclination of the inner surface of the inner side surface 45 c in the vertical chamber portion 45, and flows smoothly into the horizontal chamber portion 43. Further, the air is introduced into the room from the horizontal chamber portion 43 through the air supply hole 28a.

  Further, the air flowing into the room from the air supply hole 28a flows downward along the curved surface portion KM on the upper surface on the front side of the cover 22c, as indicated by an arrow b in FIG. In this case, the air flowing downward along the curved surface portion KM of the cover 22c becomes an air curtain by a cold air flow, and the air including the oil smoke rising from the gas range 13 or the pan is the front portion of the hood main body 21. Prevents upward flow to the side. As a result, air containing oil smoke rising from the gas range 13 or the pan is surely guided and sucked into the hood body 21 without leaking.

  Next, a test for sucking smoke was performed using the range hood 20 according to the present embodiment. This test uses an IH heater in place of the gas range 13 and fires 10 incense sticks with the IH heater while operating the range hood 20 to check whether the incense smoke is reliably sucked into the hood body 21. By observing. The volume of the room used in this test was 39.78 m 3, the room temperature was 25 ° C., and the room humidity was 50%. In addition, the gaps in each part of the room were covered with tape or the like to improve the airtightness. Then, the test was performed for 1 hour by setting the air volume notch of the operation panel 23b to be strong.

  As a result, the incense smoke was all sucked into the hood body 21 without rising and leaking outside the hood body 21. At that time, as shown by an arrow a in FIG. 6, the smoke was converged and sucked inside the hood main body 21 while winding the vortex. Further, the cold air descending along the curved surface portion KM of the hood main body 21 forms an air curtain, and smoke is prevented from leaking to the front side of the curved surface portion KM.

  As described above, in the range hood 20 according to the present embodiment, the upper surface front side portion of the hood body 21 is configured with the curved surface portion KM, and the air supply chamber 41 including the air supply port at the rear portion of the curved surface portion KM. Therefore, when external air is introduced into the room through the air supply port, the air flows downward along the curved surface portion KM of the hood main body 21. For this reason, an air curtain is formed below the front portion of the curved surface portion KM, and indoor air containing oil smoke or the like sucked into the hood main body 21 by the air curtain leaks from the opening of the hood main body 21 and the hood main body 21. It is prevented from flowing to the upper part on the front side.

  Further, since the outside air introduced into the room through the air supply port of the air supply chamber 41 has a temperature lower than that of the room air, the air containing the oil smoke rising from the gas range 13 is more reliably guarded and the hood. It feeds into the inside of the main body 21. Furthermore, since the duct cover 27 having the air supply hole 28a provided in the lower front portion is installed in the flat surface portion HM of the hood main body 21, the exhaust device 30 and the air supply device 40 are not visible from the outside and the aesthetic appearance is improved. . Further, since the air supply hole 28a is provided in the immediate vicinity of the upper end of the curved surface portion KM, the air discharged from the air supply port of the air supply chamber 41 surely flows to the upper surface of the curved surface portion KM. An appropriate air curtain can be formed. As a result, indoor air containing exhaust gas, oily smoke, and the like can be reliably sent to the inside of the hood main body 21.

  Further, since the duct cover 27 is constituted by the cover body 27a and the height adjustment cover 27b, the height position of the height adjustment cover 27b according to the length between the flat surface HM of the hood body 21 and the ceiling surface. The gap between the upper end portion of the duct cover 27 and the ceiling surface can be eliminated. As a result, no matter where the range hood 20 is installed, there is no gap between the range hood and the ceiling surface, and the aesthetics increase. Moreover, the range hood which concerns on this invention is not limited to embodiment mentioned above, It can implement by changing suitably within the technical scope of this invention.

It is the perspective view which showed the installation state of the range hood which concerns on one Embodiment of this invention. It is a top view of a range hood. It is the front view which showed the inside of the range hood. It is sectional drawing which showed the state which looked at the range hood from the side surface side. It is the front view which showed the state in which the range hood was installed. It is explanatory drawing explaining the flow of exhaust_gas | exhaustion and air supply. It is the perspective view which showed the assembly | attachment state of a duct cover and a flame | frame. It is the perspective view which showed the state which removed the duct cover from the range hood. It is the perspective view which showed the air supply chamber. It is the perspective view which showed the state which attached the air supply electric shutter to the upper surface of the horizontal chamber part in an air supply chamber.

Explanation of symbols

DESCRIPTION OF SYMBOLS 20 ... Range hood, 21 ... Hood main body, 27 ... Duct cover, 27a ... Cover main body, 27b ... Height adjustment cover, 28a ... Air supply hole, 30 ... Exhaust device, 31 ... Suction device, 40 ... Air supply device, 41 ... Air supply chamber, HM ... Plane, KM ... Curved surface.

Claims (4)

A hood main body installed above the heating cooker, an exhaust device for discharging indoor air sucked through the hood main body to the outside, and an air supply device having an air supply chamber for introducing external air into the room In the simultaneous hood / exhaust type range hood provided with the above, the air supply chamber is divided into a substantially rectangular box-shaped horizontal chamber portion that is long in the left-right direction and low in height, and has an outer surface extending upward from both sides of the horizontal chamber portion. A pair of box-shaped vertical chambers formed on a vertical surface orthogonal to the bottom surface of the horizontal chamber part, and an air supply electric shutter on the center of the upper surface of the horizontal chamber and the outer surface of the pair of vertical chambers the connection hole can be connected to the provided, the front side portion of the upper surface of the hood body, as well as shaped to descend toward the front side downward, the air supply Chang Is installed on the rear side of the front side portion on the upper surface of the hood body, and the air supply extending in the left-right direction along the front side portion in the vicinity of the front side portion on the front surface of the air supply chamber When an external air is introduced into the room through the air supply port, the air becomes an air curtain that flows downward along the upper surface of the front portion of the hood body, A range hood characterized in that indoor air to be sucked is prevented from leaking from the hood body.   The range hood according to claim 1, wherein the front side portion is formed as a curved portion curved from the upper side toward the lower side of the front side with the upper surface protruding.   A frame-shaped duct cover having a predetermined height surrounding the upper surface rear side portion of the hood main body is installed on the rear side of the front side portion on the upper surface of the hood main body, and a lower side portion on the front surface of the duct cover. The range hood according to claim 1 or 2, further comprising a plurality of air supply holes for guiding air sent out from the air supply port to the front side portion side.   The range hood according to claim 3, wherein the duct cover includes a cover main body and a height adjustment cover that allows the position of the upper end portion of the duct cover to be adjusted by moving forward and backward from the upper end portion of the cover main body.

Images