JP5533271B2 - Range food - Google Patents

Description

  The present invention relates to a range hood provided with a filter that removes minute objects that are dirt in the air.

  Conventionally, this type of range hood is known to have a filter attached for the purpose of collecting oily smoke, dust, and the like generated during cooking (see, for example, Patent Document 1).

  Hereinafter, the range hood will be described with reference to FIG.

  FIG. 5 is a configuration diagram of a conventional range hood 100 disclosed in Patent Document 1. As shown in FIG. Air 101 containing dirt such as oil passes through a suction port 102 and passes through a filter 104 disposed in front of the exhaust device 103. When the sensor 106 detects dirt on the filter 104, the driving device 105 rotates the filter 104 to remove the dirt by centrifugal force.

  Some types of range hoods have a filter attached for the purpose of collecting oily smoke or dust generated by cooking, and the filter is immersed in a cleaning solution for cleaning (see, for example, Patent Document 2).

  Hereinafter, the range hood will be described with reference to FIG.

  FIG. 6 is a configuration diagram of another conventional range hood 200 disclosed in Patent Document 2. As shown in FIG.

  The range hood 200 includes a filter 203 provided between the suction port 201 and the fan 202. The filter 203 can be rotated by a rotating shaft 204 extending substantially horizontally. A portion below the rotating shaft 204 of the filter 203 is immersed in the cleaning liquid 205 accommodated in the cleaning tank 206. Air including dirt such as oil and dust passes through the portion above the rotating shaft 204 of the filter 203, and the dirt adheres. By rotating the filter 203 with the rotating shaft 204, the portion with dirt attached is positioned below the rotating shaft 204 and immersed in the cleaning liquid 205 for cleaning.

Japanese Patent Laid-Open No. 3-16439 JP-A-6-137630

  In such a conventional range hood 100, if dirt accumulates on the filter 104 and is dried, it is difficult to remove it sufficiently only by centrifugal force. Accordingly, the filter 104 is gradually clogged, and the performance of removing dirt is deteriorated.

  Further, in such a conventional range hood 200, the dirt floats in the cleaning liquid 205 after the filter 203 is cleaned. The floating dirt is reattached to the filter 203, and the filter 203 becomes gradually dirty and clogged, and the performance of the range hood 200 is deteriorated.

  These filters need to be cleaned regularly because dirt accumulates with use and the amount of air sucked in decreases or oil dripping occurs.

  Therefore, the present invention solves the above-mentioned conventional problems, and without removing the filter periodically, it is troublesome to remove dirt such as oil and dust of the filter that has been dried and fixed, and dirt that is floating in the washing liquid after washing. The purpose is to provide a range hood that can be removed without any problems.

  In order to achieve the above object, the range hood of the present invention is installed above or around a cooker, and sucks in polluted air, discharge ports that discharge purified air, and an exhaust device for exhaust ventilation A hood having an air passage that communicates with a blower casing that contains air, a disk-like filter that is rotated by driving means downstream of the suction port, a cleaning casing that surrounds the filter, and a number of injection ports in a row. A substantially cylindrical nozzle, a water supply means for supplying water to the nozzle, and a collecting means for collecting sewage scattered in the cleaning casing, from the filter center side toward the filter circumferential end side. The nozzle is provided, a partition plate is provided so that the cleaning casing has a water storage structure, and the opening of the filter is formed in a radial slit shape.

  This means that the dirt stuck to the surface of the filter can be easily removed without removing the filter, reducing the need for cleaning, preventing clogging of the filter, and reducing the amount of air discharged. A range hood capable of effectively collecting oily smoke and dust on the filter is obtained.

  According to the present invention, by installing a nozzle in which a large number of injection ports are arranged in front of the filter, without removing the filter, by rotating the filter, water is sprayed on the entire filter area to remove dirt and fix the oil. It is possible to provide a range hood that can easily clean strong dirt such as dust and dirt.

  Furthermore, by making the filter opening into a radial slit shape, oil or dust that has been peeled off from the filter by water jet can be effectively blown out of the filter by utilizing the centrifugal force due to the rotation of the filter. As a result, it is possible to remove dirt such as oil and dust, so that it is possible to provide a range hood that is effective in restoring filter performance and extending the interval between cleaning operations.

  In addition, when the filter is rotated in a state where it is immersed in water accumulated in the cleaning casing, a slit-shaped opening is formed by providing a corrugated unevenness on one side of the longitudinal direction of the slit-shaped opening in the rotational direction. Since the wave-shaped irregularities provided on one side of the longitudinal direction of rotation in the longitudinal direction shake water and generate a water flow, it is possible to provide a range hood that can remove strong dirt such as oil and dust attached to the filter .

  Further, by providing a plurality of ribs on the outer edge of the filter, the deformation of the filter can be corrected after the operation of opening the opening in the filter.

Side surface block diagram which shows the installation state of the range hood of Embodiment 1 of this invention Perspective view near the nozzle of the same range hood Front view of the same hood nozzle (A) Front view and side view of filter of the same range hood, (b) Detailed view of the opening of the filter, (c) Detailed view of the rib of the filter Configuration diagram showing the state of conventional range hood installation Configuration diagram showing the installation state of another conventional range hood

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

(Embodiment 1)
As shown in FIGS. 1-3, the food | hood 2 which provided the suction inlet 1 which collects the microscopic thing which is the dust and the dust which floated around cooking oil generated by cooking above a cooking appliance (not shown) is provided. The hood 2 is provided with a discharge port 4 that communicates with the outside through a duct 3 that communicates with the outside, and a blower casing 6 that includes an exhaust device 5 is disposed inside the hood 2. The ventilation path 7 which connects the suction inlet 1 and the discharge outlet 4 via is formed.

  In addition, a flat rectifying plate 8 is provided near the suction port 1 in the hood 2, and a filter 10 for collecting oil and dust connected to the driving means 9 is provided on the front surface of the exhaust device 5. Has a cylindrical cleaning casing 11 covering the filter 10, and a large number of injection ports 12 are arranged in a row on the front side of the filter 10 so as to face the filter 10. A substantially cylindrical nozzle 15 installed horizontally and at a constant distance toward the circumferential end side 14 is connected and fixed to a water storage device 16 and a water supply pump 17 to form a water supply means 18.

  Further, a small hole 19 is provided in the lower end portion of the cleaning casing 11, and a collecting means 20 for draining and collecting the sewage scattered in the cleaning casing 11 from the small hole 19 is provided. In order to easily remove dirt such as oil and dust adhered to the filter 10, for example, hot water of about 40 ° C. is put into the water storage device 16 before washing.

  Moreover, the partition plate 21 is provided in the lower part of the cleaning casing 11, and the water sprayed from the nozzle 15 toward the filter 10 is stored in the cleaning casing 11 so that the lower part of the filter 10 is immersed.

  In the above configuration, dirt such as oil and indoor dust generated during cooking is sucked into the hood 2 from the suction port 1 around the rectifying plate 8 by operating the exhaust device 5 and installed in the ventilation path 7. It is collected and accumulated by the filter 10. On the other hand, the purified air that has passed through the filter 10 is discharged from the discharge port 4 to the outside through the duct 3 by the exhaust device 5.

  Initially, the dirt of the air passing through the filter 10 is collected by colliding with a part other than the opening of the filter 10 (hereinafter referred to as a meat part). In the case of oil, the dirt on the opening of the filter 10 is also passed through the opening of the filter 10. By attaching and accumulating dirt such as dust on the attached oil, the opening of the filter 10 is blocked and clogging occurs, leading to a reduction in the amount of discharged air.

  Therefore, the filter 10 is washed. First, the filter 10 is rotated by the driving means 9, and at the same time, the water stored in the water storage device 16 is pumped up by the water supply pump 17 and supplied to the nozzle 15. The water jetted from the nozzle 12 of the nozzle 15 strikes the filter 10 flesh and peels off the dirt adhering to the flesh, and the oil and dust accumulated when passing through the opening of the filter 10 are also combined. Then, they are peeled off and washed by being scattered from the filter 10 by centrifugal force due to rotation.

  At this time, as shown in FIG. 4, the opening 22 of the filter 10 is formed in a radial slit shape from the center of the filter 10, and the radial slit-shaped opening 22 is a single opening to the vicinity of the outer edge of the filter 10. As a result, the centrifugal force generated by the rotation of the filter 10 can be used effectively, and oil or dust peeled off from the filter 10 by the water jetted from the nozzle 12 of the nozzle 15 is centrifuged out of the filter 10. You can fly with power.

  Further, as shown in FIG. 4 (b), which is a detailed view of the A portion of the slit-shaped opening 22, a wave-shaped unevenness 23 is provided on the rotation direction side of the flesh portion between the slit-shaped openings 22, so that the filter 10 When it is rotated while immersed in water stored in the cleaning casing, the wave-shaped unevenness 23 provided on the rotation direction side of the flesh portion between the slit-shaped openings 22 shakes the water and generates a water flow. Strong dirt such as oil and dust adhering to the filter can be removed.

  The opening of the filter 10 is preferably large in order to prevent clogging due to dirt such as oil and dust, but is preferably small on the dirt collecting surface. In order to satisfy the function as a range hood, the width, length and arrangement of the openings can be determined in consideration of the balance between these two conflicting phenomena.

  As shown in FIG. 4A, three ribs 24 are provided on the outer edge of the filter 10. FIG. 4C shows a detailed view of a portion B of the rib 24. FIG.

  The ribs 24 can correct the deformation of the filter 10 caused by a plurality of processes for forming the opening 22 in the filter 10. That is, in the processing step of the filter 10, the deformation of the filter 10 can be corrected by performing the processing step of the rib 24 after the plurality of steps of forming the opening 22. In FIG. 4A, the number of ribs 24 is three, but the number of ribs 24 can be appropriately determined depending on the degree of deformation of the filter 10.

  In addition, since the residual water after injection accumulated in the washing casing 11 having a water storage structure contains dirt, the filter 10 is washed intermittently, and dirt floating in the washing casing 11 during washing. Even when the filter 10 is reattached to the filter 10, the water once washed is drained by opening a valve (not shown), and the filter 10 is rotated several times from the nozzle 15 while the filter 10 is rotated without storing water in the washing casing 11. By vigorously injecting water, it is possible to wash away dirt adhering to the entire filter, and dirt floating in the washing liquid after washing can be removed without trouble.

  In addition, since the substantially cylindrical nozzle 15 in which a large number of injection ports 12 are arranged in a horizontal row is disposed horizontally from the center side 13 of the filter 10 to the circumferential end side 14 of the filter 10, Dirt is removed by hitting the injection port 12 with certain water. In addition, if there are few injection ports 12, dirt once removed only moves on the filter 10, but since the filter 10 is rotated and sprayed over the entire area of the filter 10, it is easy and very clean. be able to. For this reason, accumulated dirt which is usually difficult to clean can be easily and easily removed.

  The nozzle 15 is horizontally installed on the front surface of the filter 10. However, the nozzle 15 may be installed at a certain distance from the center side 13 of the filter 10 toward the circumferential end side 14 of the filter 10. For example, it may be installed at a vertical position or an oblique position.

  As described above, by installing a nozzle with a large number of injection ports in front of the filter, without removing the filter, by rotating the filter, water is sprayed over the entire area of the filter to remove dirt, and Strong dirt such as dust can be easily washed, and the filter opening is made into a radial slit shape, so that the centrifugal force generated by the rotation of the filter effectively removes oil or dust that has been peeled off from the filter by water jetting. Since the filter can be used to the outside of the filter and dirt such as oil and dust can be removed from the filter, it is possible to provide a range hood that is effective in restoring the filter performance and extending the interval between cleaning operations.

  In addition, by providing wave-shaped irregularities on the rotation direction side of the meat part between the slit-shaped openings, the filter is provided in this meat part when rotated while immersed in water stored in the cleaning casing. Since the corrugated irregularities hit the water surface and shake the water to generate a water flow, it is possible to provide a range hood that can remove strong dirt such as oil and dust attached to the filter.

  The structure that removes dirt by the force of water to be sprayed and centrifugal force can be applied to a ventilation device that collects dirt with a filter and is installed in a place where it is difficult to maintain and maintain the filter.

DESCRIPTION OF SYMBOLS 1 Suction port 2 Hood 4 Discharge port 5 Exhaust device 6 Blower casing 7 Ventilation path 8 Current plate 9 Driving means 10 Filter 11 Cleaning casing 12 Injection port 13 Center side 14 Circumferential end side 15 Nozzle 16 Water storage device 17 Water supply pump 18 Water supply means 19 Small hole 20 Collecting means 21 Partition plate 22 Opening 23 Concavity and convexity 24 Rib

Claims (2)

A ventilation passage is provided by connecting an intake port for sucking contaminated air, an outlet port for discharging purified air, and a blower casing containing an exhaust device for exhaust blower, which is installed above or around the cooker. Food and
A disk-like filter that is rotated by driving means downstream of the suction port;
A wash casing surrounding the filter;
A cylindrical nozzle in which a number of injection ports are arranged in a line;
Water supply means for supplying water to the nozzle;
A means for collecting sewage scattered in the cleaning casing;
The nozzle is arranged from the filter center side toward the circumferential end side,
A partition plate is provided so that the cleaning casing has a water storage structure,
The opening of the filter has a radial slit shape,
Features and, Relais Njifudo in that a wave-shaped unevenness on the side opposite the side with the rotational traveling direction of the longitudinal direction of the opening. Claim 1 Symbol placement range hood and providing a plurality of ribs on the outer edge of the filter.

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