JP5144948B2 - Kitchen exhaust grill - Google Patents

Description

The present invention relates to a grill of a kitchen exhaust device used for exhausting a kitchen provided with cooking heating equipment such as a gas range and an IH cooking heater.

  Conventionally, smoke, steam and hot air generated by cooking in a kitchen are exhausted to the outdoors by a sirocco fan from an inlet provided near a cooking heating device, and a suction case is connected in front of the sirocco fan. It is also known that smoke or the like is exhausted by a sirocco fan after passing through a suction case (see Japanese Patent No. 2716410). When the kitchen exhaust device and the cooking heater are close to each other, the suction port is directly provided in the suction case, and when the distance is long, the suction port is connected to the suction port via the extension duct ( JP, 2002-364897, A publication). A grill provided with a baffle plate is detachably provided at the suction port, and when an appropriate time has elapsed, the grill is removed to clean dirt such as oil adhering thereto.

  A hood for inducing steam and hot air generated from the cooking heater is provided near the inlet, and the inlet and the kitchen are connected to the inlet through this device when the kitchen exhaust device is inoperative. Attempts have also been made to prevent a decrease in the efficiency of cooling or heating by detachably providing a cover for preventing air from flowing between the room and the room.

The suction case can be opened at an arbitrary position and an extension duct can be connected to the suction case. This makes the suction port more flexible and quieter than when the suction port is directly opened in the sirocco fan case. There are advantages to doing. However, the provision of the suction case increases the size of the kitchen exhaust device, resulting in an increase in installation space and inconvenience in transportation, which is inconvenient in that cleaning and maintenance are not easy.
In addition, some of the oil in the exhaust can be removed with the rectifying plate of the grill, but there are also things that adhere to the exposed surface of the exhaust path such as the suction case, sirocco fan blades, fan case, etc., so remove as much oil as possible In this case, it is desirable that the grill can be removed without complicating the structure of the grill and without impairing the design flexibility of the exhaust path. Moreover, it is preferable that the hood provided in the vicinity of the suction port can be manufactured at a low cost with a simple configuration.
Japanese Patent No. 2716410 JP 2002-364897 A

In the present invention, a suction case having a suction port and a communication port is provided in front of an inlet of a sirocco fan, and the exhaust of the kitchen sucked from the suction port is exhausted through the communication port and the inlet. and this to perform maintenance such as cleaning in the form of kitchen exhaust system for discharging from the mouth easily, it is an object to make the exhaust gas to remove oil without constraining the design of the exhaust path of the exhaust apparatus .

In the present invention, in order to solve the above-described problem, an intake case having an inlet and a communication port is provided in front of the inlet of the sirocco fan, and the exhaust from the kitchen sucked from the inlet is connected to the communication port and the flow. In a kitchen exhaust system that discharges from an exhaust port of a sirocco fan through an inlet and has a grill provided directly or through an extension duct at the inlet, the grill is provided with a grill inlet at the front and a grill outlet at the rear. The grill body is provided with a horizontally disposed grill body, and a rectifying plate is provided at the grill inlet and the grill outlet is opened rearward and downward, and an upper edge is located behind the grill inlet and the grill outlet. A porous metal plate filter inclined in the direction was detachably interposed. The grill is easily cleaned by providing the oil groove along the lower edge of the porous metal plate.

In the kitchen exhaust device of the present invention, a suction case is continuously provided in front of the sirocco fan, and the exhaust of the kitchen sucked from the suction port is discharged from the exhaust port of the sirocco fan through the communication port and the inflow port. Thus, in the kitchen exhaust apparatus provided with a grill at the suction port directly or through an extension duct, the grill is composed of a grill body arranged in a horizontal direction with a grill inlet at the front and a grill outlet at the rear. The grill inlet is provided with a baffle plate, and the grill outlet is opened rearward and downward, and a porous metal plate filter with an upper edge inclined backward is detachable between the grill inlet and the grill outlet. Because it is interposed in the filter, the filter area is large and the oil can be easily collected, making it easy to clean the grill.

Oil smoke or steam exhaust generated in the kitchen is sucked into the suction port of the suction case, and the suction port is provided with a grill either directly or through an extension duct. A plate has a grill outlet that is open at the rear and lower sides of the plate, and a porous metal plate filter whose upper edge is inclined backward is detachably interposed between the grill inlet and the grill outlet, Since the oil groove is provided along the lower edge of the perforated metal plate, in the grille equipped with a filter that adsorbs oil and the like, the filter area can be increased to improve the oil collecting property. Without using this member, the exhaust path can be arbitrarily set to either the rear side or the lower side , so that the degree of freedom in design increases and the size can be reduced.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment of the present invention will be described. FIG. 1 is a cut-away side view of a kitchen exhaust device, and reference numeral 1 denotes a multiblade fan impeller 3 that can freely rotate inside a scroll casing 2 having a cochlear appearance. A sirocco fan provided at 4 is a square metal fan case in which the sirocco fan 1 is mounted and accommodated. The sirocco fan 1 is provided with an inlet 5 through which exhaust from cooking such as steam and smoke from the kitchen flows in and an exhaust outlet 6 through which the exhaust sent out by the impeller 3 is discharged, in front of the inlet 5. The suction case 7 was continuously provided. The suction case 7 is formed of an air canister having a suction port 8 for sucking exhaust air from the kitchen and a communication port 9 connected to the inlet 5 of the sirocco fan 1, and is attached and fixed to a wall 28 of the building.

  The sirocco fan 1 is driven by a driving motor 10. In the present invention, the driving motor 10 is also housed in the fan case 4, and the fan case 4 is provided so as to be joined to and separated from the suction case 7. I did it. In the embodiment, as shown in FIGS. 2 and 3, the fan case 4 is attached to the suction case 7 by the hinge 11 so that it can be joined and separated. Reference numeral 24 denotes a lock for keeping the fan case 4 closed to the suction case 7.

  The central portion of the shroud 12 on the back surface of the impeller 3 and the central portion of the scroll casing 2 are recessed inwardly of the impeller 3, and the recessed portions 13 formed in the scroll casing 2 and the shroud 12 are The drive motor 10 is attached so that the drive motor 10 can be installed without hindering the flow of exhaust gas and without being bulky. A small hole for ventilation was formed in the recessed portion of the shroud 12 and the scroll casing 2 to cool the motor 10.

  In the wall 28 in front of the suction port 8, there is provided a grille 14 having a rectangular tube-shaped grill inlet 15 as shown in FIGS. 4 and 5 that opens toward the cooking appliance 23 for cooking in the kitchen, The grill inlet 15 is provided with a horizontal rectifying plate 16 as in the conventional case. In the present invention, a filter 17 made of a perforated metal plate having a larger area than the flow path area whose upper edge is inclined in the rear direction is provided between the grill inlet 15 and the grill outlet 18 in order to reliably collect oil in the exhaust gas. It is provided in between, and the grill outlet 18 is opened to the rear and the lower side of the filter 17 so that an exhaust path can be arbitrarily provided to the rear or the lower side of the grill 14. In the embodiment, by providing side plates 19 at both ends of the current plate 16, a grill main body 20 having a grill outlet 18 opened in two directions, rearward and downward, is formed, and a pair of slanted inner surfaces of the side plates 19. The guide plate 21 is provided, and the filter 17 is detachably provided on the guide plate 21. If the filter 17 is formed of a porous metal plate coated with a hydrophilic inorganic paint, the adhering oil can be washed away with water, and cleaning becomes easy. Reference numeral 27 denotes an oil groove provided along the lower edge of the filter 17 of the grill body 20. The rectifying plate 16 may be inclined instead of being parallel to the direction of the exhaust flow as shown in the figure.

  Since the grill outlet 18 is provided in two directions, the grill outlet 18 can be connected to the suction port 8 of the suction case 7 provided laterally or downwardly via an extension duct 22 as shown in FIGS. Thus, a cover 25 that can be opened and closed upward is provided at the grill inlet 15, and is closed when the exhaust device is not used to prevent the outside air from flowing back into the kitchen via the sirocco fan 1. FIG. 6 shows an example applied to an island-type kitchen using an IH heater cooking heating device 23. A kitchen exhaust device is accommodated below the cooking table, and a duct is connected to the exhaust port 6 for outdoor use. The exhaust was led to.

  The front shape of the fan case 4 and the suction case 7 (the shape seen from the right side in FIG. 1) is formed in a square shape, but is preferably formed in a rotationally symmetric shape such as a circular shape or an octagonal shape. And the position of the exhaust port 6 can be set relatively freely. In the case of FIG. 1, the suction port 8 of the suction case 7 is provided below the front surface of the suction case 7, but may be provided at an arbitrary position such as above the front surface or lower side surface although not shown in FIG. 6. It becomes possible, and the exhaust port 6 of the sirocco fan 1 can be provided not only on the lower side of the fan case 4 but also on the left and right side surfaces or the upper side by turning the entire scroll casing 2 and attaching it.

  A range hood 26 is provided above the cooking heater 23 to guide the exhaust to the grill inlet 15.

The operation of the exhaust apparatus shown in FIG. 1 will be described. By rotating the sirocco fan 1, exhaust flows from the kitchen through the grill 14, the extension duct 22, and the suction case 7, and the exhaust port 6 of the sirocco fan 1 goes to the outside. Exhausted. By providing the suction case 7, the position of the suction port 8 can be set relatively freely. Therefore, the degree of freedom in designing the exhaust path from the sirocco fan 1 to the grill 14 is increased, and the noise of the sirocco fan 1 can be reduced. In addition, the provision of the suction case 7 has the disadvantage that the exhaust device is bulky. However, in the case of the present invention, the sirocco fan 1 and the drive motor 10 are housed in the fan case 4 and are provided in the suction case 7 so as to be joined and separated by the hinge 11, and the communication port and the inflow port are directly connected. It is not necessary to provide a pipe for connecting the suction case 7 and the fan case 4, the exhaust device is compact, and it is easy to attach and clean the fan case 4 and the suction case 7.
Further, both the scroll casing 2 to which the sirocco fan 1 is fixed and the central portion of the rotating shroud 12 are recessed inward of the impeller 3, and the driving motor 10 is housed and fixed in the recessed portion 13 formed thereby. Since the drive motor 10 can be accommodated in the thin fan case 4 and the fan case 4 is not bulky, the installation space is not taken up and the suction case is taken. 7 can be easily joined and separated.
The relative positional relationship between the grill 14 and the sirocco fan 1 is determined by the arrangement of the cooking heater 23 and the building structure, and the opening position of the suction port 8 can be changed by providing the suction case 7, so that the piping design is somewhat free. In the case of the present invention, the filter 17 of the grill 14 is provided so as to be detachable obliquely and the rear and lower sides are opened, so that the filter area is large and the oil collecting property is improved. Piping can be freely connected to the rear or the lower side. For example, as shown in FIG. 6, the piping can be installed in a direction perpendicular to the grill 14 to make a reasonable piping design suitable for an island type kitchen. By forming the filter 17 with a metal perforated plate and providing the oil groove 27 along the lower edge thereof, the oil adhering to the filter 17 can be accumulated in the oil groove 27 and the dirt in the grill 14 can be suppressed. By providing a cover 25 that opens upward at an arbitrary angle in the vicinity of the grill inlet 15, exhaust is guided to the grill inlet 15, and efficient exhaust can be performed.

Cut side view of an embodiment of the present invention Sectional drawing of the 2-2 line part of FIG. 2 is a cross-sectional view of the opened state Front view of grill Sectional drawing of the 5-5 line part of FIG. Cut side view of another embodiment of the present invention

Explanation of symbols

  1 Sirocco fan, 2 scroll casing, 3 impeller, 4 fan case, 5 inflow port, 6 exhaust port, 7 suction case, 8 suction port, 9 communication port, 10 drive motor, 11 hinge, 12 shroud, 13 recess , 14 Grill, 15 Grill inlet, 16 Current plate, 17 Filter, 18 Grill outlet, 27 Oil groove,

Claims (2)

A suction case having a suction port and a communication port is provided in front of the inlet of the sirocco fan, and the exhaust of the kitchen sucked from the suction port is exhausted from the exhaust port of the sirocco fan through the communication port and the inlet. In the kitchen exhaust apparatus in which a grill is provided directly or through an extension duct, the grill is configured by a grill body arranged in a horizontal direction with a grill inlet at the front and a grill outlet at the rear. The grill inlet is provided with a baffle plate, and the grill outlet is opened rearward and downward, and a perforated metal plate filter with an upper edge inclined rearward is attached and detached between the grill inlet and the grill outlet. A grill of an exhaust device for a kitchen, characterized by being freely interposed.   The grill of the exhaust device for a kitchen according to claim 1, wherein an oil groove is provided along a lower edge of the porous metal plate.

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