JPH04125146U - Range food - Google Patents

Abstract

(57) [Summary] [Purpose] To increase the effectiveness of collecting waste gas and smoke generated from the microwave, and to prevent the flame from coming into direct contact with the filter in the event that flames arise due to ignition of food. to prevent the spread of fire. [Structure] In a range hood in which a filter 3 and a blower unit 4 are built into the hood body 1, the front of the filter 3 is covered within the hood body 1 and a suction gap A is defined between the hood body 1 and the peripheral wall of the hood body. A shielding plate 5 is arranged, and the shielding plate 5 can freely open and close the filter section by an opening/closing driving means 6, and the shielding plate 5 is connected to the blower unit 4.
The hood opens in conjunction with the operation of the fan 12, and can freely close when the fan 12 stops and an abnormal temperature detection signal from a temperature sensor 24 provided inside the hood body.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is installed above the gas range, electric range, etc. in the kitchen, and the problem occurs when cooking. Related to range hoods that suck and exhaust smoke, waste gas, etc.

0002

[Conventional technology]

This is a type of refrigerator in which the blower unit is housed inside the deep hood body with an open bottom. The most common type of food is shown in Japanese Utility Model Publication No. 15711/1983.

0003 In other words, the lower plate is installed and fixed across the back plate and left and right side plates of the hood main body, which has an open bottom. and the filter insertion frame attached to the tip of the bottom plate and the bottom of the top plate of the hood body. A filter is attached across the hood, and the filter, the lower plate, and the back plate of the hood body, A blower unit is housed in a space divided by the left and right side plates and the top plate.

0004 This range hood can be installed above a gas or electric range. If the ceiling of the installation location is low, please adjust the rectangular shape on the left and right sides of the hood body. The front lower part of the side plate may come into contact with the cook's head, so There are also range hoods that have plates shaped like right triangles to solve these problems.

[0005]

[Problem that the idea aims to solve]

By the way, the waste gas and smoke generated when cooking in a microwave spreads horizontally as it rises. It has a strong tendency to disperse.

[0006] On the other hand, in the case of the above-mentioned range hood whose side shape is approximately a right triangle, the side enclosure is Because of the small amount, the efficiency of collecting rising waste gas and smoke is poor, and the outside of the left and right side panels of the hood body The problem is that there is a lot of leakage.

[0007] Also, as mentioned above, this type of range hood is located directly above the gas range, etc. If tempura oil ignites while cooking tempura and a flame rises, the flame is caused by the oil. There is a danger of directly touching the dusty filter and spreading the fire.

[0008] The present invention was devised in view of the problems of the conventional technology as described above. The purpose of this is to direct the waste gas and smoke rising from the microwave to the blower unit. Not only can it be effectively guided and collected, but it can also prevent food on the stove from catching fire. If flames start up, block the flames from touching the filter and prevent the fire from spreading. It is possible to provide a range hood.

[0009]

[Means to solve the problem]

In order to achieve the above purpose, the range hood of the present invention has a In a range hood with a built-in filter and blower unit, the hood main It covers the front of the filter inside the body and defines a suction gap between it and the peripheral wall of the hood body. A shielding plate is arranged, and the shielding plate automatically opens and closes the filter section using an opening/closing drive means. Furthermore, the above-mentioned shielding plate opens in conjunction with the operation of the fan in the blower unit. At the same time, the fan stops and abnormal temperature is detected by the temperature sensor installed inside the hood body. It is characterized by being able to close freely according to a signal.

0010 The above shielding plate is a heat-resistant, fire-resistant metal plate, or a material with equivalent functionality. to form.

[0011] In addition, the opening/closing driving means for opening and closing the shielding plate rotates the rotatably attached shielding plate into a fin. For example, a ball screw mechanism operated by a motor, an electrical Examples include rack and pinion mechanisms operated by magnetic solenoids or motors.

0012

[Effect]

According to the above means, between the left and right side plates of the hood body and the left and right side edges of the shielding plate, and between the left and right side plates of the hood body, between the top plate of the hood body and the upper edge of the shielding plate, and between the rear edge of the hood body and the lower edge of the shielding plate. A suction gap is defined between the The suction air velocity generated in the suction gap increases due to the operation of the hood, and The collection effect is improved.

[0013] In addition, flames may rise when food on the stove catches fire, and the temperature inside the hood may drop. When the temperature becomes abnormally high and is detected by the temperature sensor, the output signal of that temperature sensor The opening/closing driving means is activated to close the shielding plate, closing the filter section and allowing the flame to filter out. Block people from touching the ta.

[0014] Furthermore, since the above-mentioned shielding plate is linked to the start and stop of the range hood, At the same time as the door starts operating, the shielding plate opens to open the connection to the filter section, and the machine stops. At the same time, the shielding plate closes to close the communication port to the filter section.

[0015]

【Example】

Hereinafter, embodiments of the present invention will be described based on the drawings. In the drawings, 1 is the hood body; 2 is a guide plate, 3 is a filter, 4 is a blower unit, 5 is a shielding plate, 6 is an opening/closing drive hand It is a step.

[0016] The hood main body 1 consists of a back plate 1a, a top plate 1b, and left and right side plates 1c in the shape of a right triangle. The open side is formed into a substantially right triangle shape, and the front plate 1d is attached to the tip of the top plate 1b. A housing section 7 for switches and lighting is divided, and a switch button is provided on the front. 8 are arranged.

[0017] Further, a support frame 9 is provided at the front folded portion at the lower end of the back plate 1a in the hood body 1. is fixed upright, and the lower part of the guide plate 2 is detachably attached to the support frame 9 by screwing. It is attached and supported in an upwardly inclined manner, and the left and right sides of the guide plate 2 are attached to the hood body. It is removably attached by screwing to the receiving metal fittings 10 fixed to the left and right side plates 1c.

[0018] Furthermore, the back plate 1a, top plate 1b, left and right side plates 1c, and lower plate 1e of the hood body 1, and the filter 3. The blower unit 4 is housed in a space defined by a casing 11, a fan 12 and a motor 13, and a bell mouth is attached to the front of the casing 11 for suction. An inlet is formed, and an outlet of the casing 11 is formed in the top plate 1b of the hood body 1. It is connected to the exhaust duct through the hole.

[0019] The above filter 3 consists of a filter insertion frame 14 hanging down and fixed to the lower surface of the top plate 1b and a lower plate 1e. It is removably attached to the filter insertion frame 15 provided in the filter insertion frame 15.

[0020] The shielding plate 5 is made of a flat metal plate and covers an opening frame 16 formed protruding around the filter 3. The installation frame 17 is formed into a rectangular shape with a size that allows for The lower part of the left and right sides of the mounting frame 17 is attached with a screw. Attach to the mounting pieces 18 fixed to the left and right side plates 1c of the card body 1 so that they can rotate around the shaft 19. The frame 17 is configured to rotate in the front-back direction. Also, the shielding plate 5 of the above mounting frame 17 A projecting piece 21 is provided in the middle of the width direction of the horizontal rod 20 to be fitted, and the opening/closing driving hand is attached to the projecting piece 21. The telescopic arm 22 of the ball screw mechanism that constitutes stage 6 is connected, and the ball screw mechanism is activated. Therefore, the mounting frame 17 can be rotated in the front-back direction.

[0021] Furthermore, the mounting frame 17 to which the above-mentioned shielding plate 5 is attached is opened by the operation of the opening/closing drive means 6. However, if you are concerned about the closing movement only due to the operation of the opening/closing drive means 6, please install the A coil spring 23 is engaged between the upper end of the frame 17 and the opening frame 16, and the coil spring 23 is attached to the mounting frame 17. It is also possible to apply a biasing force in the closing direction.

[0022] Further, a temperature sensor 24 is installed inside the hood body 1, and the temperature sensor 24 detects abnormal temperature and outputs a signal, whereby the opening/closing drive means 6 described above is activated. It is designed so that Furthermore, the opening/closing driving means 6 is operated by the output signal of the temperature sensor 24. In addition, the fan motor switch 25, which operates and stops the blower unit 4, is turned on. , OFF. (See Figure 3)

[0023] With the above configuration, the fan motor switch When 25 is turned on, if the detected value of temperature sensor 24 is below a certain temperature, blower unit 4 At the same time as the motor 13 rotates, the opening/closing drive means 6 operates to open the shielding plate 5 forward. The opening frame 16 that protrudes in front of the filter 3 is then unlocked and the waste generated during cooking is removed. Gas and smoke will be sucked and exhausted. At this time, the periphery of the opened shielding plate 5 is In order to define a suction gap A between the card body 1 and the peripheral wall of the card body 1, the suction gap A is The suction wind speed generated by the microwave oven increases, and the effectiveness of capturing waste gas and smoke generated from the microwave oven increases. It is possible to reduce the collection leakage of waste gas, etc.

[0024] When the range hood is used in the above conditions, food cooked on the range, such as tempura, etc. If the oil in the pan ignites, flames will rise, and the temperature inside the hood will become abnormally high. When the temperature exceeds a preset temperature, the temperature sensor detects it and sends a signal. is output, which activates the opening/closing drive means to close the shielding plate, thereby increasing the flow to the filter. Close the opening frame that is the communication port. Therefore, the rising flames are blocked by the shielding plate, and the flames are Direct contact with dusty filters is prevented, thereby reducing the spread of fire. It can be prevented.

[0025] Also, turn off the fan motor switch to stop using the range hood. When the motor stops rotating, the opening/closing drive means operates to close the shield plate and open it. Close the mouth frame. As a result, the opening frame closes when the range hood is not in use. This prevents outside air from entering the room and also blocks outside noise. You can cut it off.

[0026] Furthermore, since the above-mentioned shield plate is removably attached to the gate-shaped mounting frame, the shield By removing the plate, the front of the filter is opened, allowing the portal-shaped mounting frame to be opened. The filter and fan of the blower unit can be removed through the open part of the fan. , the filter can be cleaned easily. In addition, there is an opening/closing drive that opens and closes the shielding plate. The means is covered with a removable guide plate, so there is little contact with waste gas, etc., and there is no oil dust. In addition to preventing dirt from adhering to the This allows maintenance and inspection of the closing drive means to be performed easily. In addition, the opening/closing drive hand A protective cover 26 may be separately attached to the stage to protect it from oil and dust.

[0027]

[Effect of the idea]

The range hood of the present invention has the above-described configuration, so that the suction air at the periphery of the hood body is By increasing the speed and reducing leakage to the outside of the hood body, it is possible to collect and exhaust effectively. can.

[0028] In addition, the shielding plate that defines the suction gap on the periphery of the hood body is a part of the range hood. The filter part opens and closes in conjunction with operation and stop, so when the range hood is not in use, the filter part opens and closes. The filter section is closed, preventing the inflow of outside air and outdoor noise. . Therefore, in cold regions where the outside air temperature is very low in winter, Beneficial.

[0029] In addition, the above-mentioned shielding plate is equipped with a temperature sensor installed inside the hood body, which prevents flames from rising. When abnormal temperature is detected, the output signal activates the opening/closing drive means to close the valve. This prevents the flames rising from the food from coming into direct contact with the oil-dusted filter. This can prevent the spread of fire.

[Submission date] June 27, 1991

[Procedural amendment 1]

[Name of document to be amended] Specification

[Correction target item name] 0011

[Correction method] Change

[Correction details]

[0011] Further, the opening/closing driving means for opening and closing the shielding plate may be, for example, a rotatably attached shielding plate. The drive mechanism is driven by a motor. Rack and pinion operated by ball screw mechanism, electromagnetic solenoid, or motor Examples include mechanisms.

[Brief explanation of drawings]

FIG. 1 is a vertical side view of the range hood of the present invention.

FIG. 2 is an enlarged perspective view of a shielding plate portion.

FIG. 3 is a block diagram showing an electric circuit of an opening/closing drive means for opening and closing the shielding plate.

FIG. 4 is a flowchart showing the opening and closing movement of the shielding plate.

[Explanation of symbols]

1: Hood body 3: Filter 4: Blower unit 5: Shielding plate 6: Opening/closing drive means 24: Temperature sensor A: Suction gap

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[Procedural amendment]

[Submission date] June 27, 1991

[Procedural amendment 2]

[Name of document to be corrected] Drawing

[Correction target item name] Figure 1

[Correction method] Change

[Correction details]

[Figure 1]

Claims (1)

[Scope of utility model registration request] Claim 1: In a range hood in which a filter and a blower unit are built into the hood body, a shield plate is disposed within the hood body to cover the front of the filter and define a suction gap between the hood body and the peripheral wall of the hood body. The shielding plate can open and close the filter part by an opening/closing drive means, and furthermore, the shielding plate opens and moves in conjunction with the operation of the fan in the blower unit, and when the fan stops and the temperature sensor installed in the hood body malfunctions. A range hood characterized in that it can be closed freely by a temperature detection signal.