JP2014129969A - Ventilation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation system capable of improving cook's comfort while suppressing the increase in air conditioning load.SOLUTION: A ventilation system 1 supplies and exhausts air around cooking appliances 10. The ventilation system 1 includes: an exhaust hood 21; a pair of lateral diffusers 31 and 32; and a conditioned-air diffuser 41. The exhaust hood 21 is located upward of the cooking appliances 10 and vacuums the air upward. The paired lateral diffusers 31 and 32 are located on both sides of the exhaust hood 21, respectively and blow out the air downward. The conditioned-air diffuser 41 is located forward of the exhaust hood 21 and blows out the conditioned-air downward.

Description

  The present invention relates to a ventilation system for supplying and exhausting air around a cooking appliance.

  Conventionally, a ventilation system for supplying and exhausting a kitchen room (cooking room) is known. In the kitchen room, cooking appliances such as a gas stove and a fryer are provided. Since these cooking appliances have a heat generating part that generates heat during use, the ventilation system is required to improve the thermal environment of the cook who uses the cooking appliances. In the kitchen room, air conditioning such as cooling and heating is performed by the air conditioner, but the heat generated from the heat generating part of the cooking appliance causes the air conditioning load of the air conditioner to increase. Therefore, the ventilation system is also required to save energy in air conditioning.

  As an energy saving measure, for example, a double hood may be used as an exhaust hood provided above the cooking appliance. The double hood has a structure in which an exhaust port that sucks air upward and an air outlet that surrounds the air outlet and blows air downward are integrated. In the double hood, since the air heated to high temperature by the heat in the heat generating part of the cooking appliance passes through the exhaust port, the temperature of the members constituting the air outlet provided around the air rises. Therefore, the temperature of the air blown toward the cook from the blower outlet in front of the exhaust port is increased by the heat of the member whose temperature has increased. For this reason, in the kitchen room where the double hood is adopted, there is a problem in the comfort of the cook.

  Patent Document 1 proposes a ventilation system aimed at effectively suppressing the diffusion of combustion gas and the like into the kitchen room without causing discomfort to the cook. This ventilation system has a rear outlet that is located behind the cooking appliance and blows air upward, and a pair of side outlets that are located on both sides of the cooking appliance and blow off air obliquely upward and forward of the cooking appliance. Prepare.

JP 2007-64524 A

  In the ventilation system of Patent Document 1, air that substantially covers the sides and the front of the cooking appliance (air curtain) is formed, so that the air that has become hot due to the heat of the heating portion of the cooking appliance diffuses into the kitchen room. Since it is suppressed, it can suppress that an air-conditioning load increases. However, the space where the cook works in front of the cooking appliance is close to the heat generating part of the cooking appliance, so that the cook working there is exposed to hot air, thus improving the comfort of the cook. There is room for.

  The objective of this invention is providing the ventilation system which aims at the improvement of a cook's comfort, suppressing the increase in an air-conditioning load.

  [1] The ventilation system of the present invention supplies and exhausts air around the cooking appliance (10). The ventilation system includes an exhaust hood (21), a pair of side outlets (31, 32), and an air conditioning outlet (41). The exhaust hood (21) is located above the cooking appliance (10) and sucks air upward. The pair of side outlets (31, 32) are located on both sides of the exhaust hood (21) and blow out air downward. The air-conditioning outlet (41) is located in front of the exhaust hood (21) and blows out conditioned air downward.

  In this configuration, the conditioned air blown downward in front of the exhaust hood (21) and the air blown downward on both sides of the exhaust hood (21) allow the front and sides of the cooking appliance (10) to be separated. Since a covering air flow (air curtain) is formed, the heat generated in the heating portion of the cooking device (10) is less likely to diffuse to the outside of the air curtain. Thereby, since it can suppress that the air-conditioning load of the air conditioning apparatus in a kitchen room (2) increases, energy saving can be achieved.

  Moreover, in this configuration, the conditioned air (cold air) can be blown downward from the air-conditioning outlet (41) provided in front of the exhaust hood (21), so that the cook working in front of the cooking appliance (10) Comfort can be improved.

  Moreover, since a pair of side blower outlet (31, 32) is provided in the both sides of the exhaust hood (21) instead of the both sides of the cooking appliance (10) like patent document 1, patent document 1 Thus, it is not necessary to extend the air supply duct from the ceiling to the side of the cooking appliance (10). Therefore, it is possible to suppress the complicated arrangement of the duct.

  [2] The ventilation system preferably further includes a rear outlet (33) positioned rearward of the cooking appliance (10) in plan view.

  In this configuration, since the rear air outlet (33) is provided, the allowable range in which the air volume of the air blown out from the pair of side air outlets (31, 32) can be adjusted can be expanded. Specifically, for example, if the amount of air blown from the pair of side air outlets (31, 32) becomes too large, the air blown from the pair of side air outlets (31, 32) becomes the cooker side (front). However, if the allowable range for adjusting the air volume is widened as described above, the air volume blown out from the pair of side air outlets (31, 32) can be easily reduced. It can suppress that the air which blows off from a pair of side blower outlet (31, 32) flows into the cooker side (front). More specifically, it is as follows.

  That is, the air blown downward from the pair of side air outlets (31, 32) is directed downward while approaching each other under the influence of the upward air flow formed by the exhaust hood (21). The direction is further changed, and the air is exhausted from the exhaust hood (21) with the air including the heat of the heat generating portion of the cooking appliance (10). By the way, when the air volume of the air blown out from the pair of side air outlets (31, 32) becomes large, after colliding while changing the direction in which the air approaches each other, a part thereof is forward (cooker side). It becomes easy to flow.

  In the ventilation system, the amount of air discharged from the kitchen room (2) to the outside of the kitchen room (2), such as an exhaust hood (21) and an air conditioning inlet (42), and a pair of side outlets (31, 32), the amount of air supplied from the air-conditioning outlet (41) and the like into the kitchen room (2) as a whole is substantially balanced. Therefore, it can adjust so that the air volume of the air blown from a pair of side blower outlets (31, 32) may become small by providing a back blower outlet (33) also behind cooking appliance (10). The allowable range that can be expanded. Thereby, since the quantity of the air which flows ahead (cooker side) can be reduced, a cooker's comfort and energy saving can further be improved.

  [3] In the ventilation system, the rear outlet (33) is preferably located behind the exhaust hood (21) and blows air downward.

  In this configuration, since the rear outlet (33) is provided behind the exhaust hood (21), it is necessary to extend the air supply duct connected to the rear outlet (33) from the ceiling to the cooking appliance (10). There is no. Thereby, it can suppress that arrangement | positioning of a duct becomes complicated.

  In this configuration, the rear outlet (33), the pair of side outlets (31, 32), and the air conditioning outlet (41) are provided so as to surround the exhaust hood (21). Since air is blown downward from each of the air outlets, a relatively stable air flow (air curtain) is formed so as to cover the front, side, and rear of the cooking appliance (10). Thereby, the heat generated in the heat generating part of the cooking appliance (10) is not easily diffused outside the air curtain.

  [4] In the ventilation system, a separate room (3) communicating with the kitchen room (2) exists next to the kitchen room (2) where the cooking appliance (10) is provided, and the kitchen room ( 2) is preferably provided with an air conditioning inlet (42) of the air conditioning mechanism (40).

  In this configuration, examples of the separate room (3) include a guest room where customers eat. In this configuration, since the air conditioning inlet (42) is provided in the kitchen room (2), an air flow can be formed from the separate room (3) to the kitchen room (2). It can suppress that the air with comparatively high temperature in the kitchen room (2) provided with 10) flows into another room (3). Thereby, it can suppress that the comfort of a separate room (3) is impaired.

  ADVANTAGE OF THE INVENTION According to this invention, the ventilation system which aims at the improvement of a cook's comfort can be provided, suppressing increase in an air-conditioning load.

1 is a perspective view showing a ventilation system according to a first embodiment of the present invention. (A) is a front view which shows the outline of the ventilation system which concerns on 1st Embodiment, (B) is the side view. It is a figure which shows the kitchen room provided with the ventilation system which concerns on 1st Embodiment, and the separate room | chamber adjacent to it, Comprising: It is sectional drawing in the III-III line of FIG. 2 (A). It is a perspective view which shows the ventilation system which concerns on 2nd Embodiment of this invention. (A) is a front view which shows the outline of the ventilation system which concerns on 2nd Embodiment, (B) is the side view. It is a perspective view which shows the ventilation system which concerns on 3rd Embodiment of this invention. (A) is a front view which shows the outline of the ventilation system which concerns on 3rd Embodiment, (B) is the side view. It is a perspective view which shows the ventilation system which concerns on 4th Embodiment of this invention. (A) is a front view which shows the outline of the ventilation system which concerns on 4th Embodiment, (B) is the side view. (A) is a front view which shows the outline of the ventilation system which concerns on 5th Embodiment, (B) is the side view.

  Hereinafter, a ventilation system 1 according to an embodiment of the present invention will be described with reference to the drawings. The ventilation system 1 in each embodiment supplies and exhausts air around the cooking appliance 10. Hereinafter, although several embodiment is described, this invention is not limited to these embodiment.

[First Embodiment]
FIG. 1 is a perspective view showing a ventilation system 1 according to the first embodiment of the present invention. Fig. 2 (A) is a front view showing an outline of the ventilation system 1 according to the first embodiment, and Fig. 2 (B) is a side view thereof. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 2 (A), and shows a kitchen room 2 in which a ventilation system 1 is provided and a separate room 3 adjacent thereto. Examples of the kitchen room 2 include a restaurant and a hotel kitchen room, and examples of the separate room 3 include, but are not limited to, a guest room where customers eat.

  As shown in FIGS. 1 to 3, the ventilation system 1 includes an exhaust mechanism 20, an air supply mechanism 30, and an air conditioning mechanism 40 (air conditioner 40). The exhaust mechanism 20 is provided, for example, for exhausting air containing ventilation objects such as carbon dioxide, water vapor, odorous substances, and heat generated when using the cooking device 10 in the kitchen room 2 to the outside of the room. The air supply mechanism 30 is provided to supply air to the kitchen room 2 from outside the kitchen room 2 (for example, outdoors). The air conditioning mechanism 40 is provided to perform air conditioning such as cooling, heating, and dehumidification in the building including the kitchen room 2.

  In the following description, front F, rear B, right R, left L, upper U, and lower D are directions indicated by arrows in FIG. 1 (the same applies to other drawings). Here, “left” and “right” indicate directions viewed from the front of the cooking appliance 10. In FIG. 1, the ceiling 6 is not shown. In FIG. 3, the positions of the exhaust mechanism 20, the air supply mechanism 30, the air conditioning mechanism 40, etc. are indicated by two-dot chain lines.

  As shown in FIG. 2B, the kitchen room 2 is roughly divided into a first space (ventilation space) 51 and a second space 52. The first space 51 is a space in which the cooking appliance 10 is provided and a space in the vicinity thereof, and discharge of air including the ventilation object that occurs with cooking and supply of air to the periphery of the cooking appliance 10. It is a ventilation space where The ventilation space 51 includes, in the front-rear direction, an area where the cooking appliance 10 is provided and a work area where the cook can perform cooking work in front F of the cooking appliance 10.

  The second space 52 includes a space where work other than cooking work using the cooking device 10 is performed, a space where shelves, work tables, and the like are arranged. In this embodiment, since the cooking appliance 10 is disposed on the wall 2B side of the kitchen room 2, the ventilation space 51 is located on the wall 2B side of the kitchen room 2.

  In the present embodiment, as shown in FIGS. 2B and 3, the cooking appliance 10 is disposed along the side wall of the kitchen room 2. Specifically, the cooking device 10 is arranged along the side wall of the kitchen chamber 2 in a state where the back surface of the device main body 11 is close to or in contact with the side wall (for example, the wall 2B) of the kitchen chamber 2. . However, the position of the cooking appliance 10 is not limited to this. The cooking appliance 10 may be provided near the center of the kitchen room 2, for example.

  As shown in FIGS. 1 to 3, the ventilation system 1 of the first embodiment includes an exhaust hood 21, a pair of side outlets 31 and 32, and an air conditioning outlet 41. The exhaust hood 21 is located above the cooking appliance 10 and is provided to suck up the air in the vicinity of the cooking appliance 10 upward. The pair of side air outlets 31 and 32 (the right air outlet 31 and the left air outlet 32) are located on both sides of the exhaust hood 21 and are provided for blowing air downward. The air conditioning outlet 41 is located in front of the exhaust hood 21 and is provided to blow out the conditioned air downward. The exhaust hood 21 is included in the exhaust mechanism 20. The pair of side outlets 31 and 32 are included in the air supply mechanism 30. The air conditioning outlet 41 is included in the air conditioning mechanism 40.

  In the present embodiment, the exhaust mechanism 20 includes the exhaust hood 21 described above, an exhaust duct 22 connected to the exhaust hood 21, and an exhaust fan 23. The exhaust fan 23 creates an airflow that sucks up air in the vicinity of the cooking appliance 10 (air in the ventilation space 51) upward. The exhaust duct 22 is connected to an upper part or a side part of the exhaust hood 21 and guides the air sucked into the exhaust hood 21 to the outside of the kitchen room 2 (for example, outdoors). The exhaust duct 22 forms an air flow path that connects the kitchen chamber 2 and the outside. In the present embodiment, the exhaust duct 22 is provided in a space (back of the ceiling) above the ceiling 6, but is not limited thereto, and may be disposed along the lower surface of the ceiling 6, for example.

  The exhaust hood 21 is disposed above the cooking appliance 10. The exhaust hood 21 is formed in a box shape that opens toward the cooking appliance 10, and the end of the exhaust duct 22 is connected to the center of the upper surface thereof. The exhaust hood 21 constitutes an air inlet for collecting the ventilation target sucked above the cooking appliance 10 and introducing it into the exhaust duct 22. Moreover, although opening of the exhaust hood 21 is formed so that the upper surface 11a whole of the apparatus main body 11 which the cooking appliance 10 mentions later may be covered from upper direction, it is not restricted to this.

  In the present embodiment, the air supply mechanism 30 includes one or more right outlets 31, one or more left outlets 32, and an air supply duct 34 connected to these outlets 31 and 32. And an air supply fan 35. The air supply duct 34 is branched into a plurality of parts along the way, and is connected to the right outlet 31 and the left outlet 32. It is preferable that the degree of air blown out from the right outlet 31 (air volume, wind speed, etc.) and the degree of air blown out from the left outlet 32 (air quantity, wind speed, etc.) are adjusted to the same extent. .

  In this embodiment, although a pair of blower outlets 31 and 32 are comprised by the opening provided in the ceiling 6, it is not restricted to this. A pair of blower outlets 31 and 32 may be provided below the ceiling 6 as shown to FIG. 10 (A), (B), for example.

  The air supply fan 35 creates a flow of air that is blown out from the air outlets 31 and 32. The air supply duct 34 constitutes an air flow path that connects the kitchen chamber 2 and the outside. The air supply duct 34 is provided in a space (ceiling back) above the ceiling 6, but is not limited thereto, and may be disposed along the lower surface of the ceiling 6, for example. Further, the air supply fan 35 can be omitted.

  In the present embodiment, the air conditioning mechanism 40 includes one or a plurality of air conditioning outlets 41 and an air supply duct 44 for air conditioning connected to the air conditioning outlet 41. The air conditioning outlet 41 is an outlet for the ventilation space 51.

  The air-conditioning mechanism 40 includes an unillustrated refrigerant circuit, and performs a vapor compression refrigeration cycle by circulating the refrigerant in the refrigerant circuit. Thereby, the air-conditioning mechanism 40 can perform air conditioning such as cooling in the kitchen room 2 and the separate room 3. Air (for example, cold air) heat-exchanged with the refrigerant in the heat exchanger of the refrigerant circuit is guided to the air conditioning outlet 41 through the air supply duct 44 and blown out from the air conditioning outlet 41 into the kitchen room 2.

  In the present embodiment, the air conditioning mechanism 40 further includes an air conditioning inlet 42. Although the air-conditioning inlet 42 is provided in the kitchen room 2, it is not restricted to this. The air conditioning suction port 42 may be provided in the separate room 3. However, since the air conditioning suction port 42 is provided in the kitchen room 2, air easily flows into the kitchen room 2 from the separate room 3, and as a result, air having a relatively high temperature in the kitchen room 2 flows into the separate room 3. Can be suppressed. In the present embodiment, the air conditioning mechanism 40 further includes an air conditioning outlet 43. The air conditioning outlet 43 is an outlet for the second space 52.

  In the present embodiment, a built-in type air conditioning mechanism 40 in which the air conditioning outlets 41 and 43, the air conditioning suction port 42, and the like are provided on the ceiling 6 or the wall is employed. Therefore, in this embodiment, each of the air-conditioning outlets 41 and 43 and the air-conditioning suction opening 42 is configured by an opening provided in the ceiling 6, but is not limited thereto. For example, the air conditioning mechanism 40 may be of a type including an unillustrated indoor unit suspended from the ceiling 6.

  The cooking device 10 includes a device main body 11 (a stovetop 11) and a heat generating part 12. Examples of the heat generating unit 12 include a gas stove, an electric stove, and a fryer. However, the heat generating unit 12 is not limited thereto, and includes one that is used for cooking and generates heat. The heat generating part 12 is provided on the upper part of the device main body 11.

  In the present embodiment, the device main body 11 is formed in a substantially rectangular parallelepiped shape. The front panel 13 (operation unit 13) side of the device main body 11 is the work position of the cook. A plurality of the heat generating parts 12 are provided side by side in the left-right direction on the upper surface 11a of the device main body 11, but the present invention is not limited thereto, and only one heat generating part 12 may be provided.

  As shown in FIG. 3, the kitchen room 2 and the separate room 3 are partitioned by a wall 4. The wall 4 is provided with an opening 5 that allows the kitchen room 2 and the separate room 3 to communicate with each other. In the opening 5, air can move between the kitchen room 2 and the separate room 3. Further, the opening 5 may have a size that allows a person to move between the kitchen room 2 and the separate room 3.

(Ventilation operation)
Next, the flow of air formed by the ventilation system 1 in the first embodiment will be described. When the exhaust fan 23 is operated, an ascending air current is formed as indicated by an upward-pointing dashed line in FIGS. 1 and 2. That is, high-temperature air including ventilation objects around the heating unit 12 of the cooking appliance 10 is sucked upward, collected in the exhaust hood 21, and discharged outside through the exhaust duct 22.

  In addition, when the air supply fan 35 is operated, outdoor air is sent to the right outlet 31 and the left outlet 32 through the air supply duct 34 and blown downward from each of the outlets 31 and 32. The In the space between the cooking appliance 10 and the exhaust hood 21, the above-described updraft is formed, so the air blown downward from each of the outlets 31 and 32 is attracted to this updraft (ascent By being attracted by the airflow), the direction gradually changes inward while moving downward, and further changes upward. The air is sucked up to the exhaust hood 21 together with the rising airflow, collected in the exhaust hood 21, and discharged to the outside through the exhaust duct 22.

  When the cooling operation of the air-conditioning mechanism 40 is started, the air (cold air) heat-exchanged with the refrigerant in the heat exchanger (not shown) is sent to the air-conditioning outlet 41 through the air supply duct 44 for air conditioning. It blows out downward from the outlet 41. Below the air conditioning outlet 41, there is a work space for a cook who performs cooking work in front of the cooking device 10. Therefore, the cook can work comfortably by the cold air blown out from the air conditioning outlet 41 in the work space.

  Moreover, since the upward airflow mentioned above is formed in the space between the cooking appliance 10 and the exhaust hood 21, the air blown downward from the air conditioning outlet 41 is attracted to the upward airflow (the upward airflow). , The direction gradually changes inward while moving downward, and further changes upward. The air is sucked up to the exhaust hood 21 together with the rising airflow, collected in the exhaust hood 21, and discharged to the outside through the exhaust duct 22.

  In the first embodiment, the conditioned air blown downward in front of the exhaust hood 21 and the air blown downward on both sides of the exhaust hood 21 as described above cover the front and sides of the cooking appliance 10. Such an air flow (air curtain) is formed. Thereby, the heat generated in the heat generating part 12 of the cooking appliance 10 becomes difficult to diffuse to the outside of the air curtain.

  Further, since the air conditioning suction port 42 of the air conditioning mechanism 40 is provided in the kitchen room 2, an air flow F can be formed from the separate room 3 to the kitchen room 2 as shown in FIG. As a result, it is possible to suppress air having a relatively high temperature in the kitchen room 2 provided with the cooking appliance 10 from flowing into the separate room 3.

[Second Embodiment]
FIG. 4 is a perspective view showing a ventilation system 1 according to the second embodiment of the present invention. FIG. 5 (A) is a front view showing an outline of the ventilation system 1 according to the second embodiment, and FIG. 5 (B) is a side view thereof. As shown in FIGS. 4 and 5A and 5B, the ventilation system 1 of the second embodiment differs from the first embodiment in that the air supply mechanism 30 further includes a rear outlet 33. Since the other configuration is the same as that of the first embodiment, differences will be mainly described below.

  In 2nd Embodiment, the back blower outlet 33 is located back rather than the cooking appliance 10 by a side view (plan view), and the right blower outlet 31 and the left blower outlet 32 are front view (plan view). Located between. The rear outlet 33 is provided in the outlet part main body 36. An air supply duct 34 is connected to the blowout portion main body 36. In the present embodiment, the blowout portion main body 36 is a box-shaped body having a space inside, the end of the air supply duct 34 is connected to the side portion of the blowout portion main body 36, and the rear blowout outlet 33 is the blowout portion main body 36. Although it is provided in the upper part of this, it is not restricted to this. The outlet part main body 36 can be omitted, and in this case, the rear outlet 33 is provided at the end of the air supply duct 34.

  In this embodiment, although the back blower outlet 33 has a shape extended in a substantially horizontal direction along the back surface of the apparatus main body 11 of the cooking appliance 10 (along the wall 2B), it is not restricted to this. The rear outlet 33 may be configured by a plurality of outlets.

  In the second embodiment, when the air supply fan 35 is operated, outdoor air is sent to the right outlet 31 and the left outlet 32 through the air supply duct 34 and also to the rear outlet 33. The air sent to the rear outlet 33 is blown upward from the rear outlet 33 to form an updraft. Therefore, the range of the updraft from the cooking device 10 toward the exhaust hood 21 is larger than that in the first embodiment. Thereby, the effect which draws in the air blown below from each of a pair of side blower outlets 31 and 32, and the air blown below from the air-conditioning blower outlet 41 inside can be heightened.

  Moreover, in this embodiment, since the rear blower outlet 33 is provided, the tolerance | permissible_range which can adjust the air volume from the right blower outlet 31 and the left blower outlet 32 can be expanded. The amount of air blown out from these air outlets is not particularly limited, but a specific example is as follows.

  For example, the amount of air blown from the rear outlet 33 can be made larger than the total amount of air blown from the right outlet 31 and the left outlet 32. Further, the air volume blown out from the rear outlet 33 may be larger than the air volume blown out from each of the right outlet 31 and the left outlet 32. However, these are merely examples, and are not limited to these settings.

[Third Embodiment]
FIG. 6 is a perspective view showing a ventilation system 1 according to the third embodiment of the present invention. FIG. 7 (A) is a front view showing an outline of the ventilation system 1 according to the third embodiment, and FIG. 7 (B) is a side view thereof. As shown in FIGS. 6, 7 </ b> A, and 7 </ b> B, the ventilation system 1 of the third embodiment is different from the first embodiment in that the air supply mechanism 30 includes a rear outlet 33. The other configuration is the same as that of the first embodiment. Moreover, the ventilation system 1 of 3rd Embodiment differs from 2nd Embodiment by the point provided with the structure which the back blower outlet 33 is located in the back of the exhaust hood 21, and blows off air below. Hereinafter, differences from the first embodiment and the second embodiment will be mainly described.

  In the third embodiment, the rear outlet 33 is located behind the exhaust hood 21 and is located between the right outlet 31 and the left outlet 32 in a front view (plan view). In the third embodiment, the rear outlet 33 is configured by an opening provided in the ceiling 6.

  The rear outlet 33 is provided in the outlet part body 37. An air supply duct 34 is connected to the blowout body 37. In the present embodiment, the blowout portion main body 37 is a box-shaped body having a space inside, the end of the air supply duct 34 is connected to the upper portion of the blowout portion main body 37, and the rear blowout port 33 is connected to the blowout portion main body 37. Although it is provided in the lower part, it is not restricted to this. The blowout portion main body 37 can be omitted, and in this case, the rear blowout port 33 is provided at an end portion of the air supply duct 34.

  In the third embodiment, when the air supply fan 35 is operated, outdoor air is sent to the right outlet 31 and the left outlet 32 through the air supply duct 34 and also to the rear outlet 33. The air sent to the rear outlet 33 is blown downward from the rear outlet 33. The air blown downward is attracted to the updraft (attracted by the updraft), and gradually turns inward while moving downward, and further turns upward. The air is sucked up to the exhaust hood 21 together with the rising airflow, collected in the exhaust hood 21, and discharged to the outside through the exhaust duct 22.

[Fourth Embodiment]
FIG. 8 is a perspective view showing a ventilation system 1 according to the fourth embodiment of the present invention. FIG. 9 (A) is a front view showing an outline of the ventilation system 1 according to the fourth embodiment, and FIG. 9 (B) is a side view thereof. As shown in FIGS. 8 and 9A and 9B, the ventilation system 1 of the fourth embodiment is different from the first embodiment in that the air supply mechanism 30 includes a rear outlet 33. The other configuration is the same as that of the first embodiment. Moreover, the ventilation system 1 of 3rd Embodiment differs from 2nd Embodiment and 3rd Embodiment by the point by which the back blower outlet 33 is provided between the exhaust hood 21 and the cooking appliance 10 in the height direction. ing. Hereinafter, differences from the first embodiment, the second embodiment, and the third embodiment will be mainly described.

  In 4th Embodiment, as shown in FIG.8 and FIG.9 (A), (B), the back blower outlet 33 is provided in the area | region between the exhaust hood 21 and the cooking appliance 10. FIG. Although the rear blower outlet 33 is comprised by the opening part provided in the wall 2B, for example, it is not restricted to this. The direction of the air blown out from the rear outlet 33 is, for example, the direction on the cooking appliance 10 side (front inclined obliquely downward), the direction on the exhaust hood 21 side (front inclined obliquely upward), and the direction between these ( For example, the front substantially parallel to the horizontal direction).

  The rear outlet 33 is provided in the outlet part main body 38. An air supply duct 34 is connected to the blowout body 38. In this embodiment, the blowing part main body 38 is a box-shaped body having a space inside, the end of the air supply duct 34 is connected to the rear part (rear surface) of the blowing part main body 38, and the rear outlet 33 is the blowing part. Although provided in the front part (front surface) of the main body 38, it is not restricted to this. The outlet part main body 36 can be omitted, and in this case, the rear outlet 33 is provided at the end of the air supply duct 34.

  In the fourth embodiment, when the air supply fan 35 is operated, outdoor air is sent to the right outlet 31 and the left outlet 32 through the air supply duct 34 and also to the rear outlet 33. The air sent to the rear outlet 33 is blown out from the rear outlet 33 in a direction inclined forward or forward. The blown air is attracted to the updraft (attracted by the updraft), and gradually turns inward while moving downward, and further changes upward. The air is sucked up to the exhaust hood 21 together with the rising airflow, collected in the exhaust hood 21, and discharged to the outside through the exhaust duct 22.

[Summary of Embodiment]
As described above, in each of the embodiments, the conditioned air blown downward in front of the exhaust hood 21 and the air blown downward in both sides of the exhaust hood 21 and the front and side of the cooking appliance 10. Since the air flow (air curtain) is formed so as to cover the heat, the heat generated in the heat generating part of the cooking appliance 10 is difficult to diffuse to the outside of the air curtain. Thereby, since it can suppress that the air-conditioning load of the air conditioning apparatus in the kitchen room 2 increases, energy saving can be achieved.

  In addition, in each embodiment, since the conditioned air (cold air) can be blown downward from the air-conditioning outlet 41 provided in front of the exhaust hood 21, the comfort of the cook working in front of the cooking appliance 10 is improved. Can be made. Further, since the pair of side outlets 31 and 32 are provided on both sides of the exhaust hood 21, it is possible to prevent the arrangement of the air supply duct 34 from becoming complicated.

  In 2nd-4th embodiment, since the back blower outlet 33 located back from the cooking appliance 10 is further provided by planar view, the air volume of the air blown off from a pair of side blower outlets 31 and 32 is adjusted. The allowable range that can be increased.

  Moreover, in each embodiment, since a pair of side outlet 31 and 32 is provided in the both sides of the exhaust hood 21, compared with the case where it provides in the upper part of a cooking appliance like patent document 1, for example, it is a cooking appliance. The upper surface 11a of the ten device bodies 11 can be used effectively. Specifically, the regions on both sides of the upper surface 11a of the device main body 11 can be used for applications such as work tables and storages.

  Moreover, in 3rd Embodiment, the back blower outlet 33 is located in the back of the exhaust hood 21, and is a form which blows off air below. In this configuration, since the rear air outlet 33 is provided behind the exhaust hood 21, it is not necessary to extend the air supply duct connected to the rear air outlet 33 downward from the ceiling 6 to the cooking appliance 10. Thereby, it can suppress that arrangement | positioning of a duct becomes complicated. In this configuration, the rear outlet 33, the pair of side outlets 31 and 32, and the air conditioning outlet 41 are provided so as to surround the exhaust hood 21, and the air flows downward from each of these outlets. Therefore, a relatively stable air flow (air curtain) that covers the front, side, and rear of the cooking appliance 10 is formed. Thereby, the heat generated in the heat generating part of the cooking appliance 10 is difficult to diffuse to the outside of the air curtain.

  In the third embodiment, the rear outlet 33 is located behind the exhaust hood 21 (in the example shown, the rear outlet 33 is provided on the ceiling 6). In comparison, the space around the cooking appliance 10 can be used effectively.

  In each embodiment, a separate room 3 communicating with the kitchen room 2 exists next to the kitchen room 2 where the cooking appliance 10 is provided, and the air conditioning inlet 40 of the air conditioning mechanism 40 is provided in the kitchen room 2. Therefore, an air flow can be formed from the separate chamber 3 to the kitchen chamber 2. As a result, it is possible to suppress air having a relatively high temperature in the kitchen room 2 provided with the cooking appliance 10 from flowing into the separate room 3. Thereby, it can suppress that the comfort of the separate room 3 is impaired.

  Moreover, in each embodiment, unlike the case where a double hood is adopted as the exhaust hood, the side outlets 31 and 32 are separate from the exhaust hood 21 and are blown out from the side outlets 31 and 32. The air is less susceptible to the heat of the exhaust hood 21. Therefore, in each embodiment, the temperature of the air blown from the pair of side outlets 31 and 32 is unlikely to be high as in the case of a double hood. Therefore, in each embodiment, the freshness of the foodstuff (for example, fresh vegetable) put on the upper surface 11a of the apparatus main body 11 of the cooking appliance 10 can be maintained, for example.

  Moreover, in each embodiment, the freedom degree of design of the opening area of a blower outlet is high compared with the blower outlet provided in a double hood. Specifically, in the double hood, since the air outlet is provided around the exhaust port, the air outlet has a small and narrow opening area, and the wind speed of the air blown from the air outlet tends to increase. On the other hand, in each embodiment, since the freedom degree of design of the opening area of a blower outlet is large compared with the case of a double hood, it can suppress that a wind speed becomes large, maintaining an air volume. Thus, the amount of air flowing forward (cooker side) can also be suppressed by suppressing the wind speed of the air blown from the pair of side outlets 31 and 32. That is, in each embodiment, air can be blown downward from both sides of the exhaust hood 21 while securing a certain amount of airflow.

[Other variations]
As mentioned above, although embodiment of this invention was described, this invention is not limited to these embodiment, A various change, improvement, etc. are possible in the range which does not deviate from the meaning.

  For example, in the said embodiment, although the case where a pair of side blower outlets 31 and 32 was provided in the ceiling 6 was illustrated, it is not restricted to this. For example, the configuration shown in FIGS. 10A and 10B may be employed. In the modification shown in FIGS. 10A and 10B, the right outlet 31 and the left outlet 32 are provided below the ceiling 6. Specifically, the right outlet 31 and the left outlet 32 are provided in the vicinity of the exhaust hood 21 and slightly below the opening at the lower end of the exhaust hood 21. In this modification, the rear outlet 33 is provided in the outlet part main body 39. An air supply duct 34 is connected to the blowout body 39. The blowout part main body 39 is a box-like body having a space inside, the end of the air supply duct 34 is connected to the upper part of the blowout part main body 39, and the rear outlet 33 is provided in the lower part of the blowout part main body 39. However, it is not limited to this. The blowout portion main body 39 can be omitted, and in this case, the rear blowout port 33 is provided at the end of the air supply duct 34.

  In each embodiment, an outside air processing unit can also be used as the air conditioning mechanism 40. The outside air processing unit exchanges heat between the outside air taken into the unit and the refrigerant, and supplies the air after the heat exchange to the kitchen chamber 2. When the outside air processing unit is used, the air conditioning inlet 42 can be omitted.

1 Ventilation system
2 Kitchen room 3 Separate room 4 Wall 5 that separates the kitchen room from the separate room Opening 6 that connects the kitchen room and the separate room 6 Ceiling 10 Cooking device 11 Device body 11 a Upper surface 12 of the device body Heating unit 13 Operation unit 20 Exhaust mechanism 21 Exhaust hood 22 Exhaust duct 23 Exhaust fan 30 Air supply mechanism 31 Right air outlet 32 Left air outlet 33 Rear air outlet 34 Air supply duct 35 Air supply fan 40 Air conditioning mechanism 41 Air conditioning outlet (air conditioning outlet for ventilation space)
42 Air Conditioning Suction Port 43 Air Conditioning Outlet (Air Conditioning Outlet for Air Conditioning Space)
44 Air supply duct 45 for air conditioning Suction duct 51 for air conditioning First space (ventilation space)
52 2nd space

Claims (4)

A ventilation system for supplying and exhausting air around a cooking appliance (10),
An exhaust hood (21) located above the cooking appliance (10) and sucking up air;
A pair of side outlets (31, 32) which are located on both sides of the exhaust hood (21) and blow out air downward;
An air conditioning system including an air conditioning outlet (41) that is located in front of the exhaust hood (21) and that blows out conditioned air downward.   The ventilation system according to claim 1, further comprising a rear outlet (33) located rearward of the cooking appliance (10) in plan view.   The ventilation system according to claim 2, wherein the rear outlet (33) is located behind the exhaust hood (21) and blows air downward. Next to the kitchen room (2) where the cooking appliance (10) is provided, there is a separate room (3) communicating with the kitchen room (2),
The ventilation system according to any one of claims 1 to 3, wherein the kitchen room (2) is provided with an air conditioning suction port (42) of an air conditioning mechanism (40).

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