JPH0765790B2 - Smoke exhaust device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a gas range used in a kitchen or the like,
The present invention relates to a device that discharges oily smoke and the like generated during cooking.

2. Description of the Related Art Conventionally, as shown in FIG. 11, a device B for discharging oil smoke generated from a gas stove used in a kitchen or the like during cooking is opened at the side of the burner section 2 of the gas stove 1. And the other end is provided with a smoke exhaust duct 6 having a discharge port 5 penetrating the wall surface 4 of the house and exposed to the outside, and the discharge port 5 is provided with a discharge blower 7. is doing. Also,
In order to attach and separate the oil contained in the oil smoke, a removable grease filter 8 is provided in the smoke exhaust duct 6 near the suction port 3. The solid arrows indicate the flow of air.

When the exhaust blower 7 is driven with the above configuration, a flow of air from the suction port 3 to the discharge port 5 is generated, and oil smoke or the like generated together with the air flow sucked from the suction port 3 is sucked into the smoke exhaust duct 6. . On the other hand, the oil contained in the oil smoke adheres to the grease filter 8 provided in the vicinity of the suction port 3 and is separated, and then the purified air is discharged from the discharge port 5 to the outside.

However, in the above-mentioned configuration, since the efficiency of trapping oily smoke and the like decreases as the burner is located farther from the suction port, a large amount of suction air volume is required for suction. was there. As a result, the user is uncomfortable with the reduced air conditioning effect and the occurrence of cold draft.

The present invention is to solve such conventional problems by providing a wall surface that constantly closes the left, right, and rear sides of the range,
Moreover, the suction port is arranged on each wall, and the suction port to be used is selected and used according to the signal from the combustion confirmation means arranged near the burner, so that it is always located closest to the burner that is being used. The purpose is to effectively suck oily smoke and the like from a suction port with a low air volume and discharge it to the outside.

Means for Solving the Problems In order to solve the above problems, the present invention provides a plurality of normally closed suction ports provided on wall surfaces on both sides and a depth side of a range having a plurality of burners, and the suction. Opening / closing means for opening / closing the mouth, combustion confirming means provided in the vicinity of each of the plurality of burners, and logic for confirming which burner of the plurality of burners is ignited by a signal from the combustion confirming means. Section, a control section for controlling the opening / closing means in response to a signal from the logic section, and an exhaust duct for discharging oil smoke or the like sucked from the suction port to the outside of the house.

Effect The present invention can effectively form a flow inflowing from the front side of the range in the range direction by the above-described configuration, and detects the burner in use by the combustion confirmation means to detect oil smoke or the like from the nearest intake port. Since the air is sucked, the amount of air required for the suction can be reduced, and the smoke can be efficiently discharged.

Embodiments Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 3 show an embodiment of the present invention, and FIG. 4 shows a block diagram relating to control of the present apparatus.

As shown in the perspective view of FIG. 1, the smoke exhausting apparatus A of the present invention is provided with habits 35 for blocking both sides and three sides on the back side of a range 15 having a plurality of burners 11, 12, 13, 14. Wall 35
The suction ports 16,17,18 are provided in the
As shown in FIG. 3 and FIG. 3, a discharge port in which a wall surface 19 of the house is penetrated to face the outside and a blower 20 for discharge is arranged
It communicates with the outdoors through a common smoke exhaust duct 22 having 21. On the other hand, the respective suction ports 16, 17, 18 have the same structure, and the suction port 17 is shown in FIGS. 2 and 3 as a representative sectional view thereof. That is, the intake port 17 is provided with a damper 23 for opening and closing the intake port 17 by a motor (not shown), and a grease filter 24 for removing the oil component in the oil smoke sucked into the smoke exhaust duct 22 near the intake port 17 is provided. Detachable. Further, in the vicinity of the burners 11, 12, 13 and 14, combustion confirmation means 25, 26, 27, 28 for confirming the ignition state of the flame.
As shown in FIG. 4, the output signal is applied to the control unit 30 via the logic unit 29 so that the control unit 30 controls the opening / closing of the damper 23 and the operation of the exhaust blower 20. There is. Here, the logic circuit 29 and the control unit
30 is an inlet 16 when the burner 11 is ignited by a flame, an inlet 18 when the burner 14 is ignited by a flame, and an inlet 17 when at least one of the burner 12 and the burner 13 is ignited, Each is controlled to open. In addition, the combustion confirmation means 25, 26, 27, 28 also serves as an extinguishing safety device using a temperature sensor such as a thermocouple, and a solid arrow indicates the flow of air, and a one-dot chain arrow indicates the flow of oil smoke. Show.

Next, an operation during cooking for collecting oily smoke will be described. This operation is performed by the burner 12 on the back side of the range 15 shown in FIG.
The case where is being used will be described as an example. When the burner 12 is ignited by the flame, an output signal from the combustion confirming means 26 is received, and the logic unit 29 first determines that the burner 12 on the back side of the range 15 is ignited among the plurality of burners. As shown in FIG. 2, the control unit 30 opens only the damper 23 of the suction port 17 and operates the discharge blower 20 to suck oil smoke and the like. On the other hand, since the wall surface 35 is provided so as to block both sides and the back side of the range 15, the main flow of the air flow sucked into the suction port 17 is a range between both side walls rather than the front side of the open range 15. 15 Flow toward the suction port 17 along the upper surface. That is, the suction port 17
Since the main flow of the air flow toward is always the flow along the upper surface of the range 15, oil smoke or the like is effectively sucked from the suction port 17 with a low air volume and discharged. On the other hand, when the burner 12 is not ignited, the suction port 17 is closed by the damper 23, as shown in FIG.

FIG. 5 to FIG. 7 show another embodiment, and in particular, suction from a plurality of suction ports is switched by a switching mechanism 31 provided in the upstream portion of the discharge blower 20. That is, as shown in FIG. 5 to FIG.
In the upstream part of the above, a switching mechanism 31 which is composed of three valve bodies and which rotates around a rotary shaft 34 is provided at a confluence portion 32 with the smoke exhaust ducts 22a, 22b and 22c from the respective suction ports. The fifth here
FIGS. 6, 6 and 7 show a state in which the smoke exhaust ducts 22a, 22b and 22c are switched by the switching mechanism 31, respectively. FIG. 8 is a block diagram relating to the control of this embodiment. Since the same reference numerals as those in FIGS. 2 and 3 indicate the same parts, detailed description thereof will be omitted.

FIG. 9 shows another embodiment, in which suction from a plurality of inlets is controlled by using independent smoke exhaust ducts, and the operation of the exhaust blower 20 provided in each smoke exhaust duct is controlled. 10 is a block diagram relating to the control.

Effects of the Invention As described above, the smoke exhaust device of the present invention has the following effects.

(1) Since the wall surfaces are provided so as to block both sides and the back side of the range, the main air flow toward the suction port is always along the upper surface of the range, and the suction port closest to the burner used is Since it is automatically selected and used, the air volume required for suction can be significantly reduced, and efficient suction can be realized.

(2) Since the air can be effectively sucked in with a low air volume, comfortable smoke emission can be achieved by reducing the air conditioning effect, suppressing the generation of cold draft, and reducing noise.

[Brief description of drawings]

FIG. 1 is a perspective view of a smoke exhausting apparatus showing an embodiment of the present invention, FIGS. 2 and 3 are sectional views of the apparatus showing the structure of an inlet, etc., and FIG. 4 is a control block of the apparatus. Figure, Figure 5, Figure 6
FIG. 7 is a sectional view showing a switching mechanism of a smoke exhaust duct showing another embodiment, FIG. 8 is a block diagram of control of the device, and FIG.
FIG. 10 is a sectional view showing another embodiment, FIG. 10 is a block diagram of control of the apparatus, and FIG. 11 is a sectional view of a conventional example. A: smoke extractor, 11,12,13,14 ... burner, 15 ... range, 16,17,18 ... intake port, 20 ... exhaust blower, 21 ...
Exhaust port, 22 ... smoke exhaust duct.

Claims (1)

[Claims] 1. A plurality of normally-closed suction ports provided on three wall surfaces on both sides and a back side of a range having a plurality of burners, an opening / closing means for opening and closing the suction ports, and a plurality of the burners. Combustion confirmation means provided in the vicinity of each of them, a logic unit for confirming which burner of the plurality of burners is ignited by a signal from the combustion confirmation means, and the opening / closing means by a signal from the logic unit A smoke exhaust device having a configuration that includes a control unit that controls the exhaust gas, and an exhaust duct that exhausts oil smoke and the like sucked from the suction port to the outside of the house.