WO2009057923A2

WO2009057923A2 - Multiple ventilation system

Info

Publication number: WO2009057923A2
Application number: PCT/KR2008/006334
Authority: WO
Inventors: Suk Hoon Hwang
Original assignee: Suk Hoon Hwang
Priority date: 2007-11-02
Filing date: 2008-10-27
Publication date: 2009-05-07
Also published as: WO2009057923A3

Abstract

Disclosed herein is a multiple ventilation system. The multiple ventilation system includes a hood casing, a connection piping, an upper fixture, a plurality of introduction holes, and a siphon tube. The hood casing sucks the indoor air and heat that are generated when cooking food using a fan motor. The connection piping is located between the hood casing and an outdoor region or an air duct. The introduction holes are formed in the upper fixture. The siphon tube is mounted in the connection piping. In the multiple ventilation system, when the fan motor is operated, the air and heat that are introduced into the hood casing and the air and odors that are introduced from the vicinity of a ceiling into the introduction holes are simultaneously discharged to the outdoor region via the siphon tube and the connection piping.

Description

Description MULTIPLE VENTILATION SYSTEM

Technical Field

[1] The present invention relates to a multiple ventilation system and, more particularly, to a multiple ventilation system which can discharge the odors that are moved away from a hood casing and the air that remains close to a ceiling while discharging the air and heat that are generated when cooking food. Background Art

[2] Ventilation is very important to maintain a comfortable residential environment. Insufficient ventilation may greatly affect the health of the human body and the life span of houses.

[3] Ventilation methods are classified into a natural ventilation method using a ventilation opening and a mechanical ventilation method using a ventilation fan. The natural ventilation method can realize ventilation at low cost, but decreases the heat efficiency depending on ventilation. In contrast, the mechanical ventilation method can enhance heat efficiency by enabling the adjustment of the amount of ventilation, but requires an additional expense.

[4] In particular, a kitchen where food is cooked, and a restroom are main sources of indoor air pollution. The reason for this is because the odors and heat that are generated when cooking food, and incomplete combustion gas remain in an indoor region, thus adversely affecting the health of the human body and the quality of a residential environment.

[5] For this reason, a range hood is installed in a kitchen. In this case, the range hood does not sufficiently treat pollutants such as odors, heat and incomplete combustion gas, which are generated when cooking food, problems occur in that the pollutants move away from the collection filter of a hood casing and move upwards, and are introduced into a living room and indoor regions along a ceiling, thus not only polluting indoor air but also causing humidity and condensation.

[6] In order to solve this problem, a great number of ventilation devices have been researched and developed. However, particularly in the case of houses, it is difficult to apply the devices due to the different design dimensions for the respective houses.

[7] Furthermore, in existing ventilation systems, problems occur in that a previously installed kitchen ventilation device cannot be actively used, and thus an additional cost for preparing a separate device is required. Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a multiple ventilation system, which can discharge the heat and odors that are generated when cooking food, the air that remains close to a ceiling, and the air and heat that are moved away from a casing when cooking food, through a plurality of introduction holes and a plurality of exhaust ports, to the outdoor region using only a fan motor mounted to a range hood without requiring the use of a separate power source. Technical Solution

[9] In order to accomplish the above object, the present invention provides a multiple ventilation system, in which a supply means and an exhaust means are respectively mounted at a specific location in an indoor region and in the vicinity of a ceiling to circulate air, the multiple ventilation system including: a hood casing for sucking indoor the air and heat that are generated when cooking food using a fan motor; a connection piping configured such that one side thereof is connected to the hood casing and such that the opposite side thereof extends to an outdoor region or an air duct; an upper fixture, that is, an upper casing, spaced apart from the hood casing by a predetermined height; a plurality of introduction holes formed in the upper fixture so as to enable the suction of air and odors that remain close to the ceiling; and a siphon tube mounted in the connection piping to simultaneously discharge air and odors that are sucked into the hood casing and air and odors that are sucked through the introduction holes; wherein, when the fan motor is operated, the air and heat that are introduced into the hood casing and the air and odors that are introduced from the vicinity of the ceiling into the introduction holes are simultaneously discharged to the outdoor region via the siphon tube and the connection piping.

Advantageous Effects

[10] According to the present invention, the heat and odors that are generated when cooking food, the air that remains close to a ceiling, and the air that flows backward into an indoor region can be simultaneously discharged through the introduction holes and the exhaust means using only the fan motor that is mounted to the range hood, so that ventilation efficiency can be improved, and thus the cost can be reduced.

[11] That is, in an existing ventilation system, the installation of parts and a power source is required to discharge the air that remains close to a ceiling and indoor air to the indoor region. However, in the present invention, the heat and odors that are generated when cooking food, the air that remains close to a ceiling, and the air that flows backward into the indoor region are simultaneously or sequentially discharged using only the power that is generated by the fan motor of the range hood, so that the cost can be reduced and, in addition, a ventilation efficiency higher than the reference ventilation efficiency can be achieved.

[12] Furthermore, the connection piping of the range hood is inserted into the discharge piping of the exhaust means so as to communicate therewith, so that the exhaust ports of an existing range hood can be used, with the result that a separate wall opening for indoor ventilation is not needed, and thus the working time and the cost can be reduced. Brief Description of the Drawings

[13] FIG. 1 is a view showing the construction of a multiple ventilation system according to an embodiment of the present invention;

[14] FIG. 2 is a view showing examples of introduction holes according to the present invention, which are formed in an upper casing or an upper fixture;

[15] FIGS. 3 and 4 are a sectional view and a plan view showing a siphon tube according to an embodiment of the present invention;

[16] FIGS. 5 and 6 are a plan view and a sectional view showing a siphon tube according to another embodiment of the present invention;

[17] FIG. 7 is a view showing the construction of a multiple ventilation system according to another embodiment of the present invention;

[18] FIG. 8 is a partially enlarged view showing the multiple ventilation system shown in

FIG. 7; and

[19] FIGS. 9 and 10 are views showing the constructions of multiple ventilation systems according to other embodiments of the present invention.

[20] -X-Description of characters of principal elements

[21] 10: multiple ventilation system

[22] 20: range hood 21 : casing

[23] 22: fan motor 23: connection piping

[24] 24: damper 25: upper casing

[25] 26: siphon tube 30: exhaust means

[26] 40: supply means.

Best Mode for Carrying Out the Invention

[27] The present invention provides a multiple ventilation system, in which a supply means and an exhaust means are respectively mounted at a specific location in an indoor region and in the vicinity of a ceiling to circulate air, the multiple ventilation system including: a hood casing for sucking the indoor air and heat that are generated when cooking food using a fan motor; a connection piping configured such that one side thereof is connected to the hood casing and such that the opposite side thereof extends to an outdoor region or an air duct; an upper fixture, that is, an upper casing, spaced apart from the hood casing by a predetermined height; a plurality of in- troduction holes formed in the upper fixture so as to enable the suction of air and odors that remain close to the ceiling; and a siphon tube mounted in the connection piping to simultaneously discharge air and odors that are sucked into the hood casing and air and odors that are sucked through the introduction holes; wherein, when the fan motor is operated, the air and heat that are introduced into the hood casing and the air and odors that are introduced from the vicinity of the ceiling into the introduction holes are simultaneously discharged to the outdoor region via the siphon tube and the connection piping. Mode for the Invention

[28] The present invention is described with reference to the accompanying drawings below. FIG. 1 is a view showing the construction of a multiple ventilation system according to an embodiment of the present invention, FIG. 2 is a view showing examples of introduction holes according to the present invention, which are formed in an upper casing or an upper fixture, FIGS. 3 and 4 are a sectional view and a plan view showing a siphon tube according to an embodiment of the present invention, and FIGS. 5 and 6 are a plan view and a sectional view showing a siphon tube according to another embodiment of the present invention.

[29] The multiple ventilation system 10 according to the present embodiment includes a range hood 20 for discharging the air and heat that are generated when cooking food, an exhaust means 30 for sucking indoor air through a plurality of exhaust ports, which are mounted in the vicinity of a ceiling, and delivering the sucked air to an outdoor region, and a supply means 40 for introducing external air into an indoor region.

[30] The supply means 40 is mounted at a specific location in the indoor region, and may be a wall-mounted device for introducing external air as it is, or a heat exchanger for adjusting the temperature of introduced air so as to be suitable for the indoor region and supplying the air, the temperature of which is adjusted, to the indoor region, or a ventilator for introducing unpolluted external air.

[31] The range hood 20 includes a hood casing 21 for introducing the air and heat that are generated from a kitchen, a fan motor 22 mounted in the upper portion of the hood casing 21 to suck and discharge the air and heat, a connection piping 23 for discharging the air and heat that are delivered from the fan motor 22, a damper 24 mounted above the fan motor 22 to prevent external air from being introduced into the range hood 20, an upper fixture 25 having a plurality of introduction holes 25a that is formed in the upper portion of the hood casing 21 to introduce the air and odors that remain close to a ceiling, and a siphon tube 26 mounted between the fan motor 22 and the damper 24 to deliver the air and heat that are delivered from the fan motor 22 and to suck and discharge the air and odors that are introduced through the introduction holes 25 a of the upper fixture 25.

[32] In this case, the range hood 20 may be constructed in various ways. In the present invention, the configuration of the upper fixture will be described by way of example.

[33] The hood casing 21 introduces the odors and heat that are generated from a kitchen.

To this end, the hood casing 21 includes a lower hood part 21a having a filter 21b therein, and a upper hood part 21c formed in the central portion of the lower hood part 21a or in a side portion of the lower hood part 21a so as to communicate with the lower hood part 21a.

[34] Furthermore, the fan motor 22 is mounted in the upper hood part 21, and functions to suck and deliver the air and heat that are generated when cooking food using motor power.

[35] That is, when the fan motor 22 is operated, the fan motor 22 sucks the air and heat through both an introduction opening, which is formed in the lower portion of the hood casing 21, and the introduction holes 25a, which are formed in the upper fixture 25, and delivers the sucked air and heat to the connection piping.

[36] The connection piping 23 discharges the air and heat that are supplied from the fan motor 22, and is formed to have a predetermined length. To this end, the connection piping 23 may be a flexible pipe, an elbow pipe, a reducing elbow pipe, an eccentric reducing elbow pipe, which is selectively mounted according to the place and location in and at which the connection piping 23 is used.

[37] The damper 24 is mounted between the fan motor 22 and the exhaust means 30, and functions to prevent external air from being introduced into the range hood 20.

[38] In this case, a closing damper 24a, a relief valve and an electric damper may be additionally mounted in the outdoor region or to the connection piping 23 communicating with an air duct 60 or the end of a discharge piping so that the air in the connection piping 23 and the discharge piping can be prevented from flowing backward due to the introduction of external air.

[39] The upper fixture 25 is mounted on the hood casing 21, and is configured such that the introduction holes 25a are formed in one surface of the upper fixture 25 or in the entire circumferential surface thereof, and thereby the air and odors that remain close to a ceiling can be introduced into the upper fixture 25.

[40] In this case, a noise-proofing material (not shown) may be mounted on the inner surface of the upper fixture 25 so as to dampen noise occurring when the fan motor 22 is operated or when air or the like is circulated.

[41] The introduction holes 25a are formed in the upper fixture 25, and may be formed as shown in (a) to (d) of FIG. 2, and may also be formed in an upper casing, which will be described later.

[42] FIG. 2(a) shows the case where the introduction holes 25a are formed to normally pass through the upper fixture 25, FIG. 2(b) shows the case where a portion of the upper fixture 25, which corresponds to the area of each introduction hole 25 a, is bent, and thereby air can be introduced into the upper fixture 25 along protrusions 25b formed on the upper fixture 25, FIG. 2(c) shows the case where an air control means 80 for controlling the amount of introducing air is mounted at the front or rear of the introduction holes 25a formed in the upper fixture 25, and FIG. 2(d) shows the case where shutter-type rotational bars 25c are mounted to the upper fixture 25 between the introduction holes 25 a.

[43] The air control means 80 is mounted at the front or rear of the introduction holes 25a, and includes guide rails 82a spaced apart from each other by a predetermined distance on the upper and lower sides or on the left and right sides of the introduction holes 25a, and a plate-shaped guide 84 configured to move along the guide rails 82 so that the area of the introduction holes 25a can be adjusted.

[44] In this case, one or more filters 80a may be separately mounted at the front or rear of the introduction holes 25a or in the introduction holes 25a so as to filter foreign materials or pollutants out of introduced air.

[45] The siphon tube 26 is mounted between the fan motor 22 and the damper 24, and includes an inner casing 26a having a hollow structure and configured such that the passage thereof has a reduced diameter in the direction in which air flows, a housing 26b formed to surround the inner casing 26a and to have a uniform outer circumference, and a plurality of vanes 26c configured to connect the inner casing 26a with the housing 26b and to guide air in the direction in which the air flows.

[46] That is, in the siphon tube 26, the inner casing 26a formed in the central portion thereof functions to deliver the air and heat that are supplied from the fan motor 22, and the housing 26b formed around the inner casing 26a functions to deliver the air and odors that are introduced through the introduction holes 25 a of the upper fixture 25.

[47] Here, forming the inner casing 26a so that the diameter of the passage thereof is reduced in the direction in which air flows is based on the principle in which, when the fluid or gas that moves though a wide space moves through a narrow space, the velocity of the moving fluid or gas is increased, and thus external fluid or gas is drawn in to the moving fluid or gas.

[48] Furthermore, in the present invention, the configuration in which the vanes 26c formed on the inner circumferential surface of the housing 26b via the inner casing 26a function to guide the stream of air that is discharged to the outdoor region, and in which the vanes 26c are partially formed so as to have a structure similar to that of the blades of a propeller in a direction in which the air flows in order to enhance discharge efficiency of the air will be described by way of example. [49] FIGS. 5 and 6 show an example in which a blade damper 50 is mounted to the upper or lower portion of the siphon tube 26 so as to prevent air and odors from flowing backward. The blade damper 50 includes a hollow blade housing 51 fastened to the housing 26b of the siphon tube 26, a blade cover 52 mounted in the blade housing 51 and configured such that a gear 52a is formed in a portion of the outer circumferential surface thereof and that a plurality of grid guide holes 52b is formed in the circumference of the blade cover 52 at regular intervals, a plurality of curved blades 53 from which fastening pins 53a protrude corresponding to the grid guide holes 52b of the blade cover 52, and a drive unit 54 having a motor 54c that drives a drive gear 54a engaged with the gear 52a of the blade cover 52 in a forward or backward direction in response to a signal delivered from the controller 54b.

[50] The blade damper 50 functions to prevent the air and odors that are introduced through the connection piping 23 and the discharge piping 34 from flowing backward through the introduction holes 25a to the indoor region via the inner casing 26a and the housing 26b of the siphon tube 26 (refer to FIG. 6).

[51] In greater detail, when the range hood 20 is not operated, the blades 53 move out of the blade damper 50, and thus the blade damper 50 closes the space that is defined by the inner casing 26a and the housing 26b. In contrast, when the range hood 20 is operated, the blades 53 move back into the blade damper 50, and thus the blade damper 50 opens the space that is defined by the inner casing 26a and the housing 26b.

[52] The exhaust means 30 discharges air from the indoor region to the outdoor region.

To this end, the exhaust means 30 includes one or more exhaust ports 32 mounted on an indoor ceiling, and a discharge piping 34 delivering the air that is introduced through the exhaust ports 32 to the air duct 60 or the outdoor region.

[53] Each of the exhaust ports 32 may not only be provided therein with a filter (not shown) but also be additionally coupled with a separate motor in order to enhance suction efficiency. The discharge piping 34 can be mounted in a horizontal direction. Alternately, the discharge piping 34 may be mounted at an inclination angle.

[54] FIGS. 7 to 10 are views showing multiple ventilation systems according to other embodiments of the present invention. FIG. 7 shows a multiple ventilation system having a box-shaped range hood 20, and FIG. 9 shows a chimney-type multiple ventilation system in which the upper fixture 25 of a range hood 20 functions as an upper casing.

[55] In this case, the constructions of the range hoods 20 according to other embodiments are the same as or similar to that of the range hood according to the first embodiment, and thus detailed descriptions thereof are omitted. A connection piping 23 has a predetermined length. A first end portion 23a of the connection piping 23 is inserted into the discharge piping 34 of an exhaust means 30.

[56] That is, the connection piping 23 is bent and is inserted into the connection hole 34a of a discharge piping 34, which communicates with an outdoor region or an air duct 60, without requiring the use of a separate wall opening, thus delivering air and heat.

[57] Furthermore, the connection piping 23 functions to guide the air and odors that are introduced from the vicinity of a ceiling through exhaust ports 32 when the delivery of air is made by the operation of a fan motor 22, so that they can be discharged along with the air that is discharged through the connection piping 23.

[58] In this case, in order to increase the stream of air and to enhance efficiency, the first end portion 23a of the connection piping 23 may be formed so as to have a length greater or smaller than the diameter of the connection piping 23.

[59] Furthermore, with reference to FIGS. 10, a fan motor provided in an upper hood part

21c is implemented using a double suction fan 22a. The discharge piping 34 of an exhaust means 30 extends to the outdoor region or the air duct 60 via the double suction fan 22a and the connection piping 23.

[60] In greater detail, one end of the discharge piping 34 is coupled to one side of the double suction fan 22a, and the connection piping 23 communicates with the outdoor region or the air duct 60. Accordingly, when the fan motor 22 is operated, the air and heat that are generated when cooking food can be discharged to the outdoor region via a hood casing 21, and the air that is delivered through the discharge piping 34 can be discharged to the outdoor region.

[61] The installation and operation of the multiple ventilation system 10 according to the present invention are described with reference to FIG. 7 below.

[62] The exhaust means 30, which includes one or more exhaust ports 32 mounted on an indoor ceiling, and a discharge piping 34 delivering the air that is introduced through the exhaust ports 32 to the outdoor region of a house or the air duct 60 of an apartment, is first mounted close to a ceiling.

[63] Subsequently, a hood casing 21, which includes a lower hood part 21a formed to have a predetermined size and having a filter 21b therein, and an upper hood part 21c located on the lower hood part 21a, is mounted. Thereafter, the connection piping 23 is mounted to the upper hood part 21c so as to pass through the upper surface of the upper hood part 21c.

[64] In this case, the first end portion 23a of the connection piping 23 is bent and is inserted into the connection hole 34a of the discharge piping 34.

[65] Subsequently, an upper fixture 25, having a plurality of introduction holes 25a that is formed in the upper portion of the upper fixture 25, is mounted on the hood casing 21. Thereafter, a fan motor 22, which sucks polluted air into the upper hood part 21c and discharges the sucked polluted using motor power, a siphon tube 26, which sucks and discharges the air and odors that are introduced through the introduction holes 25a of the upper fixture 25 while delivering the delivered air and heat, and a damper 24, which prevents external air from being introduced into an indoor region, are sequentially mounted.

[66] Subsequently, when a closing damper 24a is mounted to one end of the discharge piping 34, the installation of the multiple ventilation system 10 is completed.

[67] In this state, when the range hood 20 is operated, the air and heat that are generated when cooking food are discharged to the outdoor region or the air duct 60 after they are introduced into the hood casing 21 via the fan motor 22 and are delivered to the discharge piping 34 via the connection piping 23.

[68] Subsequently, the odors and air that remain close to a ceiling are discharged to the outdoor region or the air duct 60 after they are delivered to the discharge piping 34 via the introduction holes 25a, which is formed in the upper fixture 25, and the siphon tube 26.

[69] That is, the air and heat that pass through the hood casing 21 by the operation of the fan motor 22 is discharged to the outdoor region or the air duct 60 after they are delivered to the discharge piping 34 via the connection piping 23. In addition, the remaining odors and air that are introduced from the vicinity of the ceiling through the introduction holes 25a are drawn in due to the pressure difference depending on the velocity of moving air that is introduced into and discharged out of the space that is defined by the inner casing 26a and housing 26b of the siphon tube 26 located in the upper fixture 25, and discharged to the outdoor region.

[70] Accordingly, the range hood 20 can additionally discharge the indoor air that remains close to the ceiling to the outdoor region while normally discharging the air and heat that are introduced into the hood casing 21 via the fan motor 22, so that an exhaust air volume greater than the reference exhaust air volume of an existing motor can be achieved without requiring the use of an additional power source.

[71] Furthermore, the air in the discharge piping 34 moves along the stream of air and odors that are introduced through the connection piping 23, so that the exhaust air volume can be further increased, with the result that efficient indoor ventilation can be realized at low cost.

[72] Although the above description has been made to merely illustrate the technical spirit of the present invention, a person having ordinary knowledge in the technical fields (ventilation structure, the exhaust structure of a bathroom, and the like) to which the present invention pertains will appreciate that various modifications and variations are possible in a range that does not depart from the essential characteristics of the present invention.

[73] Accordingly, the embodiments of the present invention have been disclosed for illustrative purpose rather than limiting the technical spirit of the present invention, and the scope of the present invention is not limited by these embodiments.

Claims

[1] A multiple ventilation system, in which a supply means and an exhaust means are respectively mounted at a specific location in an indoor region and in a vicinity of a ceiling to circulate air, the multiple ventilation system comprising: a hood casing for sucking indoor air and heat that are generated when cooking food using a fan motor; a connection piping configured such that one side thereof is connected to the hood casing and such that an opposite side thereof extends to an outdoor region or an air duct; an upper fixture, that is, an upper casing, spaced apart from the hood casing by a predetermined height; a plurality of introduction holes formed in the upper fixture so as to enable suction of air and odors that remain close to the ceiling; and a siphon tube mounted in the connection piping to simultaneously discharge air and odors that are sucked into the hood casing and air and odors that are sucked through the introduction holes; wherein, when the fan motor is operated, the air and heat that are introduced into the hood casing and the air and odors that are introduced from the vicinity of the ceiling into the introduction holes are simultaneously discharged to the outdoor region via the siphon tube and the connection piping.

[2] The multiple ventilation system according to claim 1, wherein the siphon tube is configured such that a flexible pipe, an elbow pipe, a reducing elbow pipe, or an eccentric reducing elbow pipe is selectively mounted to a front or rear end thereof.

[3] The multiple ventilation system according to claim 1, wherein the connection piping is configured such that one end thereof constitutes the exhaust means, and is bent and is inserted into a discharge piping that communicates with the outdoor or the air duct.

[4] The multiple ventilation system according to claim 1, wherein the fan motor is constructed using a double suction fan, the double suction fan being configured such that one side thereof sucks the air and heat that are introduced into the hood casing, and such that an opposite side thereof is connected with a discharge piping constituting the exhaust means, thus sucking the indoor air.

[5] The multiple ventilation system according to claim 1, wherein the siphon tube comprises: a hollow inner casing configured such that a passage thereof has a reduced diameter in a direction in which air flows; a housing spaced apart from the inner casing by a predetermined distance and formed to surround the inner casing; and a plurality of vanes configured to connect the inner casing with the housing and to guide air in a direction in which the air flows.

[6] The multiple ventilation system according to claim 5, wherein the siphon tube is configured such that a blade damper is mounted to an upper or lower thereof to prevent air and odors that flow backward from being introduced into the indoor region through the introduction holes formed in the upper fixture.

[7] The multiple ventilation system according to claim 1, further comprising: air control means mounted at a front or rear of the introduction holes formed in the upper fixture, or in the upper fixture, so as to control an amount of air that is introduced through the introduction holes, the air control means comprising guide rails spaced apart from each other by a predetermined distance on upper and lower sides or on the left and right sides of the introduction holes, and a plate-shaped guide configured to move along the guide rails so that an area of the introduction holes is adjusted.

[8] The multiple ventilation system according to claim 7, wherein the introduction holes of the upper fixture have one or more filters therein so that foreign materials or polluted materials are filtered out of introduced air and odors.