JPH03271647A - Range hood - Google Patents

Abstract

PURPOSE:To make the collection of oil mist with a low noise possible, and at the same time, improve the using handiness by a method wherein a hood storage part, in which a movable hood is stored and in which a driving unit is provided, is provided, and the movable hood is moved while interlocking with the operation of a blower for air supply and blower for air exhaust. CONSTITUTION:When a main body switch 64 on a control part 63 is turned ON, a driving unit 57 operates, and a driving motor operates, and at the same time, a bolt 58 rotates, and by the movement of a driving piece 59, a movable hood part 45 is removed from a hood storage part 46, moves forward and stops at a specified position. Then, by the movement of the movable hood 45, a switch 61 is turned ON, a control circuit on the control part 63 is connected with power, and an optional notch is set by an air volume shifting switch 65. By this function, a blower 27 for air exhaust and blower 37 for air supply are operated by the same notch. In addition, by an exhaust motor 29, an exhaust sirocco fan 30 operates, and oil mist which generates by a cooker, etc. enters an exhaust casing 28 from an air inlet 23 through a filter 32, and is exhausted to the outside from an exhaust duct connection port 36 through a dust.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a simultaneous supply and discharge type range hood.

[Conventional technology]

FIG. 7 is a diagram showing a conventional range hood shown in, for example, Japanese Patent Publication No. 60-39933, in which (
1) is a main body formed integrally with a hood <la),
The interior is divided into an air supply passage (21) and an exhaust passage (3).The air supply passage (2) is provided with a supply air blower (4) for ventilation. Air blower (
4) has air supply vanes (5) inside. Further, the exhaust passage (3) is provided with an exhaust blower (6) for ventilation, and this exhaust blower (6) has exhaust vanes (71) inside. Feather (5)
And the exhaust vane (7) can be rotated by a motor (8). An air supply duct (not shown) is connected to the air supply path B (outdoor suction port 00 of 21), and an exhaust duct (not shown) is connected to the discharge port (12) of the exhaust blower (6). is connected. The first indoor discharge port (13) of the air supply passage (2) is located at the upper front of the main body (1).
) is formed around the exhaust passage (3) at the bottom of the main body, and a part of the supplied air is routed to the indoor suction port (3) of the exhaust passage (3).
A second indoor discharge port (14) is formed for discharging toward the main body (15) and horizontally to the main body. Note that (1) in the figure
6) is the air supply road (2) and exhaust passage (3) provided at the bottom of the main unit.
) is the partition plate.

A conventional range hood is configured as described above and has a motor (8
), when the air supply vane (pump and exhaust vane (7)) are rotated, most of the outside air sucked in from the air supply duct connected to the outdoor suction port αO of the air supply passageway (2) will flow through the arrow C. −
+CI, the air passes through the air supply path BI2J, and is supplied into the room from the indoor side first outlet (13), and a part of the air is supplied to the room from the indoor side second outlet (14) as shown by the arrow C-C1. 3)
The indoor air is discharged horizontally into the main body toward the indoor suction port (15) of the exhaust passage (3), and the indoor air sucked in from the indoor suction port (15) of the exhaust passage (3) flows into the exhaust passage (3) as shown by the arrow D-Di. )
It passes through and is discharged outside from the exhaust duct (11).

[Problem to be solved by the invention]

In the conventional range hood as above, the air supply road (2)
The outdoor air discharged from the room to the second indoor outlet (14) forms a curtain of air around the indoor intake port (15) of the exhaust passage (3), and removes oil smoke and water vapor generated during cooking. This prevents the partition plate (16) from coming into direct contact with the partition plate (16) to prevent rust, corrosion, etc., but if the operation is carried out in a highly airtight room, the amount of air supply will be insufficient and the above-mentioned oil smoke will occur. cannot be collected using the supply air, the operation noise becomes louder, and because the space where the supply air enters is small, the supply air tends to flow in intensively from, for example, joints in walls with gaps or gaps between windows. As a result, there was a problem in that a noise called a whistling phenomenon was generated.

Additionally, there is a problem in that the draft, which is the air supplied through the gap, becomes extremely cold wind for the human body in winter.

In addition, the draft increases the pressure difference between indoor and outdoor spaces, and when opening and closing an indoor door, etc., a large resistance force is applied, making it difficult to open and close.

Furthermore, with the rapid spread of so-called system kitchens and the rise of interior-oriented kitchens, the range hood itself is large and the hood (1a) is fixed in shape, so when actually cooking, the hood (Ia) There were problems in that it was a nuisance, did not match the interior design, and was not easy to use or aesthetically pleasing.

This invention was made to solve the problem,
The objective is to provide a range hood that allows the collection of oil smoke in the supply air with low noise, eliminates the generation of drafts, reduces the difference in indoor and outdoor pressure, is easy to use, and has an aesthetically pleasing interior. That is.

[Means to solve the problem]

A range hood according to the present invention includes an outer casing having an exhaust port and an air supply port at an upper part and an intake port and an air outlet at a lower part, and an air supply passage and an exhaust air partitioned and formed in the outer casing. a passage; an air supply blower provided in the air supply passage between the air supply port and the discharge port; and an exhaust blower provided in the exhaust passage between the exhaust port and the intake port; A hood provided at the lower part of the outer casing; a partition plate protruding from the discharge port toward the front of the hood and facing the inner wall of the hood to form an air passage; An adjustable air supply branch plate is provided at the tip of the plate, and after the supply air follows the air path on the partition plate, it is discharged to the intake port side and below the hood by the air supply branch plate. , the hood is composed of a movable hood part and a hood storage part that houses and moves the movable hood part, and the drive unit is interlocked with the air supply blower and the exhaust blower. This is what I did.

Further, the drive unit is formed by a drive motor, a bolt rotated by the drive motor, and a drive piece attached to the bolt, and the drive piece and the movable hood part are connected via a connecting pin. This is what I did.

Further, a connecting pin is removably attached to the drive piece and the movable hood.

[Effect]

In the present invention, an outer casing has an exhaust port and an air supply port in an upper part and an intake port and an air outlet in a lower part, an air supply passage and an exhaust passage that are divided and formed in the outer casing, an air supply blower provided between the air supply port and the discharge port in the air supply passage; an exhaust blower provided between the exhaust port and the intake port in the exhaust passage; and the outer casing. A hood provided at the bottom of the hood, a partition plate protruding from the discharge port toward the front of the hood and disposed to face the inner wall of the hood to form an air passage, and a tip of the partition plate. An adjustable air supply branch plate is provided in the hood, and the air supply is arranged along the air path on the partition plate and then discharged to the intake port side and below the hood by the air supply branch plate. comprising a movable hood part and a hood storage part that accommodates the movable hood part and has a drive unit therein for moving the movable hood part, and the drive unit is linked with the air supply blower and the exhaust blower. As a result, the drive unit is driven by the operation of the supply air blower and the exhaust air blower, and the movable hood section is moved.

Further, the drive unit is formed by a drive motor, a bolt rotated by the drive motor, and a drive piece attached to the bolt, and the drive piece and the movable hood part are connected via a connecting pin. As a result, the drive piece moves back and forth by the rotation of the bolt, and the movement of the drive piece moves the movable hood part back and forth.

Further, since the connecting pin is removably attached to the driving piece and the movable hood, the movable hood can be manually moved by removing the connecting pin.

〔Example〕

Figures 1 to 6 are diagrams showing one embodiment of this invention. In the figures, (20) is an outer casing, which has an exhaust port (21) and an air supply port (22) at the top, and an intake port at the bottom. A port (23) and a discharge port (24) are provided. (25) and (26) are air supply roads and exhaust passages that are divided and formed within this outer casing, and (27) is the above-mentioned exhaust port (21) in this exhaust passage.
The exhaust blower is located between the air intake port (22) and the air intake port (22), and has an exhaust casing (28) attached to the outer casing (20), and an exhaust sirocco mounted on the exhaust motor (29) inside the exhaust casing. A fan (30) is provided.

(31) is a motor mounting plate that mounts the exhaust motor (29) and is attached to the outer casing (20), and the same plate is also used for the air supply motor described later. (32) is a filter. (33) is made of, for example, a predetermined number of wire meshes stacked one on top of the other, and is arranged with an inclination of a predetermined angle so as to face the intake port (23) in the exhaust passageway (26). An oil reservoir for receiving the oil collected by this filter is detachably provided in the outer casing (20) at the bottom of the filter (32).
0) is attached to the back outer wall of the wall (not shown) using the mounting bracket.
The outer casing (20) is attached to the wall by being hooked onto the metal fitting (35). Note that the exhaust port (21) is provided with an exhaust duct connection port (36) that is connected to a duct (not shown). (37) is an air supply blower installed in the air supply passage (25), an air supply casing (37a) is attached to the outer casing (20), and an air supply motor (38) is attached to the air supply casing. A supply air sirocco fan (39) is provided.

Note that the air supply motor (38) is mounted on a motor mounting plate (31) and attached to the outer casing (20). (4
0) is an air supply duct connection port provided at the air supply port (22), and (41) is an air path partition plate, which connects the air supply air path (42) and exhaust air path (43) inside the outer casing (20). Separate the two. (44> is a hood, which is a movable hood part (44) that protrudes forward of the outer casing (20) at the bottom of the outer casing (20) and has a rounded tip.
5), and a hood storage section (46) into which this movable hood section is inserted via a rail, which will be described later. (46a
) is a rail provided in this hood storage section, with which the movable hood section (45) is engaged and slid. (47)
is a partition plate, one end of which is connected to the discharge port (24) within the hood storage section (46), and one end of which is wrapped with the other end of the fixed hood partition plate (48). It consists of a movable hood partition plate (49) provided within the movable hood part (45), which partitions the oil smoke from the cooking appliance (not shown) from the air supply flow from the air supply air path (42).

(50) is an air supply branch plate provided at the other end of the movable hood partition plate (49), which is formed in a substantially E shape and is in contact with the upper inner wall of the movable hood part (45). ), a connecting piece (52) extending downward from this upper piece and having a side wall, and a connecting piece (52) extending from this connecting piece toward the discharge port (24) side and connecting the movable hood partition plate (49) with a predetermined gap (53). ), and a lower piece (55) whose tip protrudes downward from the center piece toward the intake port (23). <56) is an air hole bored in the connection piece (54), through which the supply air passes. (57) is a drive unit that includes a drive motor (not shown) provided in the outer casing (20), a bolt (58) rotated by this drive motor, and a drive piece connected to this bolt. (59), the bolt (58) is rotated by the operation of the drive motor, and the drive piece (59) is moved back and forth. This driving piece is connected to the movable hood part (45) via a connecting pin (60), and is connected to the exhaust blower (27) and the air supply blower fi (37).
It is now linked to The connecting pins are formed by screws, are inserted through the movable hood part (45), are screwed onto the drive pieces (5), and are detachable.
Reference numeral 61) denotes an operating switch, which is, for example, a limit switch, and is provided in the foot storage section (46), and is connected to the exhaust blower (27) and the supply air blower (37) via a control circuit (not shown). The movable hood part (
45) is turned on when moved from the hood storage part (46) to the front of the outer casing (20>), and turned OFF when the movable hood part (45) is inserted into the hood storage part (46). A panel provided on the front side of the hood part (45>) houses an operating part (63) having a control circuit connected to the operation switch (61), and this operating part is connected to the exhaust and blower ( 27), (37) and operation switch (61)
), and consists of a main body switch, an air volume changeover switch (65) having a predetermined notch, a lamp switch (67) for an illuminator (66) installed inside the outer casing (20), and the like. (68) is a stop switch provided on the operating section (63), (69) is a switching air supply duct connection port B provided on the upper part of the outer casing (20), and (72) is the above outer casing (20).
20) is a decorative panel provided on the front side.

In the range hood configured as described above, when the main body switch (64) of the operation section (63) is turned on, the drive unit (57) operates and the drive motor rotates, and the bolt (58) rotates to rotate the drive piece. With the movement (59), the movable hood part (45) comes out of the foot storage part (46), moves forward, and stops at a fixed position. Next, when the movable hood part (45) is moved, the operation switch (6I) is turned on, the control circuit of the operation part (63) is energized, and an arbitrary notch is set with the air volume selection switch (65). Accordingly, the exhaust blower (27) and the supply air blower (37) are operated at the same notch. In addition, the lamp switch (
67), the illuminator (66) is turned on. As for the exhaust action, an exhaust sirocco fan (30) is rotated by an exhaust motor (29).

As a result, oil smoke generated from cooking appliances, etc. is removed from the intake port (23
) through the filter (32) and the exhaust casing (
28) and is discharged to the outside from the exhaust duct connection port (36) via a duct (not shown). In this case, about 70% of the oil smoke is collected by the filter (32) and accumulated in the oil sump (32). On the other hand, in the air supply function,
Air supply sirocco fan (39) by air supply motor (38)
rotates. As a result, fresh air from outside is sucked into the air supply casing (37a) through the tact provided at the air supply duct connection port (40), and is separated from the discharge port (24) by the fixed hood partition plate (48). Food storage section (46)
is discharged into the air passage. Furthermore, the air passes along the air path partitioned by the movable hood partition plate (49) in the movable hood part (45), and forms a gap (53) at the air supply branch plate (50) as shown in FIG. The induced flow A (70) in the inlet direction flows from the air supply port (23) to the hood (4) from the air hole (55).
4) The induced flow B (71) is distributed in the B direction flowing downward. Note that the induced flow AC70) functions to guide oil smoke from the intake port (23) to the filter (32),
The induced flow B (71) creates an intake curtain at the bottom of the movable hood part (45), and has the effect of drawing the oil smoke that is about to leak from the front of the hood (44) into the hood (44), and the direction of the wind is As shown in Fig. 4(b), the vector A is caused by the induced flow A (70) and the shape of the lower piece (56) of the supply air branch plate (50).
It flows with an inclination of (72). The induced flow B (71) is smaller than the induced flow A (70), and its value is set to about 50% or less of the induced flow A (70). Further, the air supply amount is set to about 20% of the exhaust amount.

When the operation is to be stopped, the stop switch (68) of the operation section (63) is turned OFF, and the air volume changeover switch (
65) and the lamp switch (67) are turned off at the same time. Next, when the main body switch (64) is turned OFF, the drive unit (57) operates, the movable hood part (45) is inserted into the hood storage part (46), and the operation switch (61) is turned off.
is turned off, power to the control circuit is turned off, and the exhaust air blower (27) and the supply air blower (37) are stopped.

〔Effect of the invention〕

As explained above, the present invention includes an outer casing having an exhaust port and an air supply port in the upper part and an air intake port and an air outlet in the lower part, and an air supply passage and an exhaust air partitioned and formed in the outer casing. a passage; an air supply blower provided in the air supply passage between the air supply port and the discharge port; and an exhaust blower provided in the exhaust passage between the exhaust port and the intake port; A hood provided at the lower part of the outer casing; a partition plate protruding from the discharge port toward the front of the hood and facing the inner wall of the hood to form an air passage; An adjustable air supply branch plate is provided at the tip of the plate, and after the supply air follows the air path on the partition plate, it is discharged to the intake port side and below the hood by the air supply branch plate. , the hood is composed of a movable foot section and a hood storage section that accommodates and moves the movable hood section, and the drive unit is interlocked with the air supply blower and the exhaust blower. As a result, the simultaneous supply and exhaust system reduces pressure differences between indoor and outdoor areas and abnormal noise caused by operation, and a portion of the supplied air is discharged to the intake port to guide oil smoke from the cooker to the intake port. This improves the efficiency of oil collection from oil smoke. Furthermore, since the movable hood section moves in conjunction with the blower, the movable hood section moves forward when the blower is in operation and is stored in the hood storage section when the blower is stopped, making the hood compact and aesthetically pleasing. Usability is improved.

Further, the drive unit is formed by a drive motor, a bolt rotated by the drive motor, and a drive piece attached to the bolt, and the drive piece and the movable hood part are connected via a connecting pin. As a result, the driving action can be ensured with a simple driving structure.

In addition, since the connecting pin is removably attached to the drive piece and the movable hood, even if the drive mechanism fails, simply removing the connecting pin will allow the movable hood to be moved manually without damaging the primary function. Can be moved.

[Brief explanation of drawings]

Fig. 1 is a front view showing an embodiment of the present invention, Fig. 2 is a side sectional view showing the exhaust action, Fig. 3 is a side sectional view showing the air supply action, and Fig. 4(a). . (b) is also a partial perspective view showing the flow of the exhaust air flow and the supply air flow, and a vector diagram showing the supply air flow toward the bottom of the hood.
The figure is a side cross-sectional view showing the movable hood part when it is movable, FIG. 6 is a side cross-sectional view showing the movable hood part inserted into the hood storage part, and FIG. 7 is a side view showing the conventional range foot. FIG. In addition, (20) is the outer casing, (21) is the exhaust port, (22) is the air supply port, (23) is the intake port, (24) is the discharge port, (25)
) is an air supply passage, (26) is an exhaust passage, (27) is an exhaust blower, (37) is a supply air blower, (44) is a hood,
(45) is a movable hood part, (46) is a hood storage part, (
47) is a partition plate, (50) is an air supply branch plate, (57) is a drive unit, (28) is a bolt, (59) is a drive piece, (
60) is a connecting pin.

Claims (3)

[Claims] (1) An outer casing having an exhaust port and an air supply port at the top and an intake port and a discharge port at the bottom; an air supply passage and an exhaust passage formed separately within this outer casing; An air supply blower provided between the air supply port and the discharge port in the air passage, an exhaust blower provided between the exhaust port and the intake port in the exhaust path, and a lower part of the outer casing. A hood provided in the hood, a partition plate protruding from the discharge port toward the front of the hood, and arranged to face the inner wall of the hood to form an air passage; The hood is movable. It is characterized by comprising a hood part and a hood storage part that houses and houses the movable hood part and has a drive unit therein for moving the movable hood part, and the drive unit is linked with the air supply blower and the exhaust blower. Range hood. (2) A drive unit is formed by a drive motor, a bolt rotated by the drive motor, and a drive piece attached to the bolt, and the drive piece and the movable hood are connected via a connecting pin. Claim 1 characterized in that they are connected.
Range hood as described in section. (3) The range hood according to claim 1, wherein the connecting pin is detachably attached to the drive piece and the movable hood part.