JP2011094892A - Range hood - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a range hood activating a deodorizing catalyst by using cooking heat generated during cooking. <P>SOLUTION: The range hood includes: a body 4 having an air exhaust fan 3 discharging contaminated air; and a deodorization filter 1 built into an air passage of the air exhaust fan 3 in the body and improving deodorizing efficiency in accordance with a temperature. Since the deodorization filter 1 is arranged below the air exhaust fan 3, a temperature is raised by cooking heat passing through the air passage of the air exhaust fan 3. Thus, the range hood can raise the temperature of the deodorization filter 1 by exhaust heat from a heating cooker, and enhance the deodorizing efficiency. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a range hood that activates a deodorization catalyst using cooking heat generated during cooking.

  A major issue is how to decompose and purify smoke and odor generated during cooking from a heating cooker. In recent years, various overheating cookers provided with a deodorizing catalyst for purifying smoke and odor have been developed. As such a deodorizing catalyst, a catalyst that is activated by heating is widely used, and there is also a catalyst that is equipped with a catalyst heating heater to activate the deodorizing catalyst (see, for example, Patent Document 1). .

Japanese Patent No. 3052840

  In the conventional method as described above, there is a problem that a heater for activating the catalyst has to be mounted, which increases costs and increases power consumption.

  This invention solves the said subject, and it aims at providing the cooker hood which activates a deodorizing catalyst using the cooking heat generate | occur | produced at the time of cooking.

  In order to solve the above-described problems, the range hood of the present invention is a deodorizing device in which a deodorizing efficiency is improved by a main body including an exhaust fan that exhausts dirty air, and a temperature built in the air passage of the exhaust fan in the main body. The deodorizing filter is installed in the lower part of the exhaust fan, and the temperature rises due to cooking heat passing through the air passage of the exhaust fan.

  By this means, the deodorizing efficiency of the photocatalyst can be increased without using a means such as a heater, and a range hood capable of efficiently deodorizing can be obtained.

  Another means is that the deodorizing filter is installed in a direction in which the surface area increases with respect to the horizontal surface of the cooking device.

  By this means, the activated area of the deodorizing filter is increased, and a range hood with high deodorizing efficiency can be obtained.

  Another means is that the deodorizing filter is detachable from the main body.

  By this means, a range hood that is easy to maintain the deodorizing filter can be obtained.

  As another means, the deodorizing filter is configured to be detachable by a switch operation.

  By this means, a range hood that is easy to maintain the deodorizing filter can be obtained.

  In addition, the other means is configured to include a notifying means for calculating the life of the deodorizing filter based on the operation time of the exhaust fan and notifying the time of the filter life.

  By this means, a range hood for notifying the user of the life of the deodorizing filter and notifying the replacement time is obtained.

  In addition, the other means includes a temperature detection means for measuring the temperature of the deodorizing filter, and the filter life is calculated based on the operation time from when the detection threshold of the temperature detection means is exceeded.

  By this means, a range hood capable of knowing the life of the deodorizing filter can be obtained.

  Another means is that the notification means is a buzzer.

  By this means, a range hood that can notify the user of the deodorizing filter replacement time is obtained.

  Another means is that the notification means is a voice.

  By this means, a range hood that can notify the user of the deodorizing filter replacement time is obtained.

  According to the present invention, the deodorizing filter includes a main body including an exhaust fan that exhausts dirty air, and a deodorizing filter that improves the deodorizing efficiency by the temperature built in the air passage of the exhaust fan in the main body. Since the deodorizing filter is activated by the cooking heat, the deodorizing filter is activated by the cooking heat, and the efficiency of the deodorizing filter is improved. The effect that can be obtained.

  Moreover, the range hood which can determine the replacement | exchange time of a deodorizing filter easily and can always maintain deodorizing efficiency is obtained.

The perspective view which shows the structure of the range hood of Embodiment 1 of this invention. Flow chart showing the operation of the same range hood Side view showing the configuration of the same range hood The perspective view which shows the structure of the range hood of Embodiment 2 of this invention. Flow chart showing the operation of the same range hood

  The invention of the range hood according to claim 1 of the present invention is a deodorization in which a deodorizing efficiency is improved by a main body including an exhaust fan that exhausts dirty air and a temperature built in the air passage of the exhaust fan in the main body. The deodorizing filter has a configuration in which the temperature rises due to cooking heat passing through the air passage of the exhaust fan by being installed in the lower part of the exhaust fan. As a result, the deodorizing filter temperature can be raised without using heating means such as a heater due to the exhaust heat from the heating cooker, and the deodorizing efficiency of the deodorizing filter can be increased. The deodorizing efficiency is improved, and the effect of being able to efficiently deodorize is achieved.

  Moreover, you may make it the structure of installing a deodorizing filter in the direction where a surface area becomes large with respect to the horizontal surface of a heating cooker. Thereby, since the activation area of a deodorizing filter becomes large, there exists an effect that the deodorizing efficiency of a deodorizing filter improves.

  The deodorizing filter may be configured to be detachable from the main body. Thereby, since replacement | exchange of a filter is attained, there exists an effect of keeping the deodorizing efficiency of a deodorizing filter high.

  The deodorizing filter may be configured to be detachable by a switch operation. Thereby, since the filter can be easily attached and detached, there is an effect that the filter can be easily maintained.

  Moreover, it is good also as a structure provided with the alerting | reporting means which calculates the lifetime of a deodorizing filter by the operation time of an exhaust fan, and notifies the filter lifetime. Thereby, since the filter replacement time can be notified to the user, there is an effect that the filter can be replaced at an appropriate time.

  Moreover, it is good also as a structure which comprises the temperature detection means which measures the temperature of a deodorizing filter, and calculates the lifetime of a filter by the operation time from the time of exceeding the detection threshold value of a temperature detection means. Thereby, since the theoretical lifetime of the filter can be calculated, there is an effect that the filter can be replaced at an appropriate time.

  Further, the notification means may be a buzzer. Thereby, there exists an effect that the exchange time of a filter can be understood.

  Further, the notification means may be configured to be voice. Thereby, since the content of notification can be explained by voice, there is an effect that the content of notification can be easily understood.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1, the range hood of the present invention includes an exhaust fan 3 that exhausts dirty air generated during cooking from an exhaust port 2 through a deodorizing filter 1. An informing means 5 such as a buzzer for informing the maintenance time is incorporated.

  Here, the deodorizing filter 1 is a filter including a deodorizing catalyst that is activated by being heated, and is activated by being heated by cooking heat generated during cooking, thereby improving the deodorizing efficiency. In order to activate the deodorizing filter 1 using cooking heat, the deodorizing filter 1 is installed in a direction in which the surface area increases with respect to the horizontal surface of the heating cooker. Thereby, the surface area with respect to the cooking heat of the deodorizing filter 1 becomes large, and a deodorizing efficiency can be improved. The deodorizing filter 1 is installed below the exhaust fan 3. Thereby, the cooking heat which passes the air path of an exhaust fan can be absorbed.

  In addition, although the operation notch of the exhaust fan of the range hood can be selected from three types of “weak”, “medium”, and “strong”, the number of operation notches may be less than three or more than three. .

  The notification means 5 may be a voice.

  In the above configuration, the operation in which the range hood notifies the filter maintenance time will be described using the flowchart of FIG. In STEP1, the process starts from a “standby state” in which the exhaust fan 3 is stopped.

  In STEP2, when the operation of the exhaust fan 3 is started, the process proceeds to STEP3, and when the operation of the exhaust fan is stopped, the process returns to the “standby state” of STEP1.

  In STEP 3, the integration timer is started and the process proceeds to STEP 4. Let the integration timer be Ti.

  In STEP4, if the integration timer Ti has passed the predetermined time Tm, the process proceeds to STEP5. If the predetermined time has not passed, STEP4 is repeated.

  In STEP 5, it is determined whether or not the operation notch is “weak”. If it is “weak”, the process proceeds to STEP 7, and Tj is added to the integrated value Ts that serves as a guide for filter replacement. If the operation notch is not “weak”, proceed to STEP 6.

  In STEP 6, it is determined whether or not the operation notch is “medium”. When the operation notch is not “medium”, the process proceeds to STEP 9 and Tk is added to the integrated value Ts.

  In any of STEP7, 8, and 9, the process proceeds to STEP10. When the integrated value Ts of the exhaust fan is equal to or greater than the filter replacement threshold Th, the process proceeds to STEP11, and the filter replacement is notified, and when it is less than Th, the process returns to STEP2.

  The reason why the value added to the integrated value Ts differs depending on the operation notch of the exhaust fan 3 is that the deodorizing filter 1 is consumed as the operation notch is larger, and the life is shortened. Therefore, Tj <Tc <Tk is preferable.

  In addition, since the filter has a lifetime, maintenance such as cleaning and replacement of the filter is required during long-term use. Therefore, the deodorizing filter 1 is provided with a convex portion 6 on the side surface as shown in FIG. 3, and is fixed to the main body 4 by fitting the convex portion 6 into the concave portion 7 of the main body 4 during use, and the lower knob 8 is pushed during maintenance. It is good to make it the structure which can be attached or detached by extracting the narrow convex part 6 from the recessed part 7. FIG. Thereby, a user can remove and maintain easily and the deodorizing effect of the deodorizing filter 1 can be maintained. Further, it is preferable to provide a push switch or the like on the front surface of the main body 4 so that the integrated value Ts can be reset after the maintenance is completed.

  As described above, in the present invention, the cooking hood generated during cooking is used to activate the deodorization filter without mounting a heater for the filter, and a range hood that can efficiently deodorize is obtained.

(Embodiment 2)
In addition to the first embodiment, the present embodiment is characterized in that a temperature detection means 9 such as a thermistor or a thermocouple for measuring the temperature of the deodorizing filter is built in the vicinity of the deodorizing filter 1. In addition, the same thing as Embodiment 1 attaches | subjects the same number, and abbreviate | omits the detailed description. The operation of the range hood configured as described above will be described.

  The temperature detection means 9 is installed in the vicinity of the deodorizing filter 1 as shown in FIG.

  Next, the operation in which the range hood notifies the maintenance time of the deodorizing filter 1 will be described using the flowchart of FIG. In STEP1, the process starts from a “standby state” in which the exhaust fan 3 is stopped.

  In STEP2, when the operation of the exhaust fan 3 is started, the process proceeds to STEP3, and when the operation of the exhaust fan is stopped, the process returns to the “standby state” of STEP1.

  In STEP3, if the filter temperature Tf detected by the temperature detecting means 9 is equal to or higher than the filter activation temperature To, the process proceeds to STEP4, and if Tf is less than To, the process returns to SETP2.

  In STEP4, the integration timer is started and the process proceeds to STEP5. Let the integration timer be Ti.

  In STEP5, if the integration timer Ti has passed the predetermined time Tm, the process proceeds to STEP6, and if the predetermined time has not passed, STEP4 is repeated.

  In STEP 6, it is determined whether the operation notch is “weak”. If it is “weak”, the process proceeds to STEP 8, and Tj is added to the integrated value Ts as a guide for filter replacement. If the operation notch is not “weak”, proceed to STEP7.

  In STEP 7, it is determined whether the operation notch is “medium”. If it is “medium”, the process proceeds to STEP 9, and Tc is added to the integrated value Ts. When the operation notch is not “medium”, the process proceeds to STEP 10 and Tk is added to the integrated value Ts.

  In any of STEPs 8, 9, and 10, the process proceeds to STEP 11. If the integrated value Ts of the exhaust fan is equal to or greater than the filter replacement threshold Th, the process proceeds to STEP 12, and notification of filter replacement is performed, and if it is less than Th, the process returns to STEP 2.

  As described above, by using the usage time after the deodorizing filter 1 is activated, an accurate maintenance time of the deodorizing filter 1 can be notified.

  The range hood according to the present invention improves the efficiency of the deodorizing filter by using cooking heat generated at the time of cooking, and is useful for a range hood used in ordinary houses and the like.

DESCRIPTION OF SYMBOLS 1 Deodorizing filter 3 Exhaust fan 4 Main body 5 Notification means 6 Convex part 7 Concave part 8 Knob 9 Temperature detection means

Claims (8)

The main body is equipped with an exhaust fan that exhausts dirty air, and a deodorizing filter that improves the deodorizing efficiency by the temperature built in the air path of the exhaust fan in the main body. The deodorizing filter is installed at the bottom of the exhaust fan. By doing so, the temperature rises due to cooking heat passing through the air passage of the exhaust fan. The range hood according to claim 1, wherein the deodorizing filter is installed in a direction in which a surface area increases with respect to a horizontal plane of the cooking device. The range hood according to claim 2, wherein the deodorizing filter is detachable from the main body. The range hood according to claim 3, wherein the deodorizing filter is detachable by a switch operation. The range hood according to claim 4, further comprising a notification unit that calculates the life of the deodorizing filter based on the operation time of the exhaust fan and notifies the filter at the time of service life. 6. The range hood according to claim 5, further comprising temperature detecting means for measuring the temperature of the deodorizing filter, wherein the filter life is calculated based on an operation time from when the detection threshold of the temperature detecting means is exceeded. The range hood according to claim 1, wherein the notification means is a buzzer. The range hood according to claim 1, wherein the notification means is a human voice.

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