JPH0833222B2 - Range hood fan - Google Patents

Description

Description: [Industrial field of application] The present invention relates to a simultaneous feed and discharge type range hood.

[Prior Art] FIG. 10 is a view showing a conventional range hood disclosed in, for example, Japanese Patent Publication No. 60-39933, in which (1) is shown.
Is a main body, and has a supply passage (2) and an exhaust passage (3) defined therein. The air supply passage (2) is provided with an air supply blower (4) for ventilation, and the air supply blower (4) has an air supply blade (5) inside. The exhaust passage (3) is provided with an exhaust blower (6) for ventilation, and the exhaust blower (6) has exhaust blades (7) inside. The air supply blade (5) and the exhaust blade (7) are the motor (8).
It can be rotated by. An air supply duct (not shown) is connected to the outdoor suction port (10) of the air supply passage (2), and an exhaust duct (12) is connected to the discharge port (12) of the exhaust blower (6). (Not shown) is connected. A first indoor outlet (13) of the air supply passage (2) is formed in the upper front part of the main body (1), and a part of the supply air is provided around the exhaust passage (3) in the lower part of the main body. An indoor-side second discharge port (14) for discharging horizontally toward the indoor-side suction port (15) of the exhaust passage (3) and to the main body. Reference numeral (16) in the figure is a partition plate for the air supply passage (2) and the exhaust passage (3) provided in the lower part of the main body.

The conventional range hood is constructed as described above, and the air supply blade (5) and the exhaust blade (7) are driven by the motor (8).
When is rotated, the outdoor air intake (10) of the air supply passage (2)
Most of the outside air sucked in from the air supply duct connected to the air passes through the air supply passage (2) as indicated by arrow C → C1 and is supplied to the room through the indoor first discharge port (13) As indicated by an arrow C → C1, the gas is horizontally discharged from the second indoor-side discharge port (14) toward the indoor-side suction port (15) of the exhaust passage 3 and then the indoor-side suction port (15) of the exhaust passage (3). The indoor air sucked in further passes through the exhaust passage (3) and is discharged to the outside from the exhaust duct (11) as shown by arrow D → D1.

[Problems to be Solved by the Invention] In the conventional range hood as described above, when a filter (not shown) is attached to the indoor suction port (15), the indoor suction port (15) faces the indoor suction port (15) with a screw or the like. In addition, the screw must be removed when cleaning the filter, which results in poor workability and the problem that the oil collected by the filter drops downwards, causing problems. It was

Further, JP-A-60-14029 and Japanese Utility Model Laid-Open No. 2-166333 disclose filters which can be inserted and removed by inserting them instead of fixing them with screws. Covers the front of the blower inlet,
There is a problem that the filter needs a large width, the filter itself becomes considerably large, and it is difficult to attach and detach and clean the filter, and it is difficult to handle.

The present invention has been made to solve these problems, and an object of the present invention is to provide a range hood fan in which the filter can be easily attached to the main body, the filter can be made smaller, and the handleability can be improved.

[Means for Solving the Problem] For this reason, in the present invention, an intake port opened on the lower surface of the main body, and an intake port arranged on the front side of the main body and communicating with the intake port on the rear side, An exhaust casing having an exhaust blower inside, an exhaust passage formed between the intake port and the intake port and located on the back side of the main body, and an inclination with respect to the exhaust direction of the exhaust passage. A filter that is arranged at a certain angle and covers the exhaust passage and is located closer to the intake opening than the suction opening; a filter receiving portion that holds the filter at a lower portion on the rear side of the main body; and an exhaust direction of the exhaust passage. An elastic member that elastically holds at least a part of the upper peripheral edge of the filter on the filter receiving portion side, and an oil reservoir that is located below the filter receiving portion and that collects oil. Features It is assumed that.

[Operation] According to the present invention, when the filter is mounted below the suction port of the exhaust casing in the exhaust passage on the rear side of the main body, the upper peripheral edge of the filter is brought into contact with the elastic member and pushed up in the exhaust direction. By moving the lower peripheral edge of the filter to the filter receiving portion, the filter can be easily held by the elastic member and the filter receiving portion, and the removal of the filter from the main body can be performed by the reverse procedure. .

The filter provided below the rear side of the main body is inclined to the rear side of the main body, so oil collected in the filter flows into the oil sump below the filter to prevent accidental dripping of oil. To be done.

Further, since the exhaust casing incorporating the exhaust blower is located on the front side of the main body and the exhaust passage is provided on the rear side of the main body, the exhaust passage can be narrowed, and the filter to be passed over this can also be installed. Can be made smaller,
The filter can be easily handled and the filter itself can be easily cleaned.

[Embodiment] FIGS. 1 to 9 are views showing an embodiment of the present invention, in which (20) is an outer casing having an exhaust port (21) and an air supply port (22) in the upper part. However, an air supply port (23) and a discharge port (24) are provided in the lower part. (25) and (26) are an air supply passage and an exhaust passage formed by being partitioned inside the outer casing, (27)
In this exhaust passage, the exhaust port (21) and the air supply port (2
2) An exhaust blower located between the exhaust sirocco fan (30) installed in the exhaust casing (28) in the outer casing (20) and mounted in the exhaust motor (29). Is provided. Reference numeral (31) is a motor mounting plate, which mounts the exhaust motor (29), is mounted on the outer casing (20), and the same one is used as an air supply motor described later. Reference numeral (32) is a filter, which is made of, for example, a predetermined number of wire meshes laminated, and has an inclination of a predetermined angle in the exhaust passage (26) so as to face the intake port (23) and to lower one of them. Are arranged. (32a) is an opening formed in the wall of the outer casing (20) of the exhaust passage (26), (32a)
b) is an elastic member that is bent after one end is inserted into this opening and is supported by screws in the outer casing (20). For example, the elastic member is made of steel wire for spring and is turned at the bent portion. While being movable, the other end is bent so as to push out the upper part of the filter (32), and constantly urges the filter (32) downward as a whole. Reference numeral (18) denotes a filter receiving portion on which the filter (32) is placed, which is substantially L-shaped and has the outer casing (2
0) It is fixed to the inner wall by spot welding and has multiple notches (1
9) and a notch (19a) protruding from the notch. (33) is an oil pool for receiving the oil collected by this filter, and has a hooking part (33a) to be engaged with the cutout piece (19a), and is a lower part of the filter receiving part (18). Is detachably engaged with the filter receiving portion (18). When the oil sump (33) is attached, as shown in FIG. 7 (b), the tip of the cutout portion (19a) and the filter receiving portion (1).
8) Since the wrap width of C dimension is provided in relation to the tip of the filter (32) placed on the filter (32)
With the filter attached, the filter (33) and oil sump (3
3) does not come off. (34) is the outer casing (2
It is attached to the outer wall of the back of 0) with a mounting bracket, and the wall (not shown)
The outer casing (20) is attached to the wall by being hooked on the wall attachment fitting (35) attached to the wall. The exhaust port (21) is provided with an exhaust duct connection port (36) connected to a duct (not shown). Reference numeral (37) is an air supply blower provided in the air supply passage (25), and an air supply casing (37a) is attached to the outer casing (20), and the air supply motor (38) is attached to the air supply casing. An air-supplying sirocco fan (39) attached to the is installed. The air supply motor (38) is attached to the motor mounting plate (31), and the outer casing (2
It is attached to 0). (40) is the air supply port (22)
An air supply duct connection port (41) provided in the air supply duct connection plate (41) is an air passage partition plate that partitions the outer casing (20) into an air supply air passage (42) and an exhaust air passage (43). Reference numeral (44) denotes a hood, a movable hood portion (45) having a rounded tip protruding to the front of the outer casing (20) at a lower portion of the outer casing (20), and a rail which will be described later. And a hood storage section (46) inserted through. Reference numeral (46a) denotes a rail provided in the hood storage portion, with which the movable hood portion (45) is engaged and slid.
(47) is a partition plate, and one end of the fixed hood partition plate (48) is connected to the discharge port (24) in the hood storage part (46).
And a movable hood partition plate (49) provided in the movable hood section (45) with the other end and one end of the fixed hood partition plate wrapped, and oil smoke and a supply air passage from a cooking device (not shown). It separates the air supply from (42). (Five
Reference numeral 0) is an air supply branching plate provided at the other end of the movable hood partition plate (49), which is formed in a substantially E shape and has a movable hood portion (4).
5) An upper piece (51) abutting on the upper inner wall, a connecting piece (52) extending downward from the upper piece and having a side wall, and extending from the connecting piece to the discharge port (24) side, A central piece (5 with a movable hood partition (49) and a predetermined gap (53)
4), and its tip is the intake port (23) below this central piece.
It consists of a lower piece (55) protruding toward the side. Reference numeral (56) is an air hole formed in the connection piece (54) through which the air supply flow passes.
A drive unit (57) is provided in the outer casing (20), a drive motor (not shown), a bolt (58) rotated by the drive motor, and a drive piece connected to the bolt. It consists of (59) and bolts (58) by the operation of the drive motor.
Rotates and the driving piece (59) moves back and forth. Then, the drive piece is joined to the movable hood portion (45) via a joining screw (60). Reference numeral (61) denotes an operation switch, which is, for example, a limit switch, is provided in the hood storage section (46), and is provided through the exhaust blower (27) and the air supply blower (37) and a control circuit (not shown). Are linked together,
The movable hood section (45) is larger than the hood storage section (46) in the outer casing (2
0) Turns on when moving forward, and turns off when the movable hood part (45) is inserted into the hood storage part (46). (62) is a panel provided on the front surface of the movable hood part (45),
An operation unit (63) having a control circuit connected to the operation switch (61) is internally provided, and the operation unit is provided via the exhaust, blowers (27) and (37) and the operation switch (61). And a lamp switch (67) for the illuminator (66) installed inside the outer casing (20). (68) is a stop switch provided on the operation section (63), (69) is an air supply duct connection port B for switching provided on the upper part of the outer casing (20), and (72) is the outer casing (20). ) Is a decorative panel provided on the front surface.

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 to rotate the drive motor, and the bolt (58) rotates to drive the drive piece. By the movement of (59), the movable hood part (45) moves out of the hood storage part (46), moves forward, and stops at a fixed position. Next, the operation switch (61) is turned on by the movement of the movable hood part (45), and the operation part (63)
The control circuit of is energized, and by setting an optional notch with the air volume selector switch (65), the exhaust blower (27)
The air supply blower (37) is operated with the same notch. Further, turning on the lamp switch (67) turns on the illuminator (66). Regarding the exhaust action, the exhaust motor (29) causes the exhaust sirocco fan (30) to rotate. As a result, oily smoke generated from the cooking device or the like passes through the filter (32) from the intake port (23) and enters the exhaust casing (28), and is exhausted from the exhaust duct connection port (36) via a duct (not shown) to the outside. Is discharged to. in this case,
About 70% of the oily smoke flows from the filter (32) to the filter receiving portion 18 and drops from the cutout portion (19) and collects in the oil sump (32). On the other hand, in the air supply action, the air supply motor (38) rotates the air supply sirocco fan (39). As a result, fresh air of the outside air is sucked into the air supply casing (37a) from the duct provided in the air supply duct connection port (40), and is separated from the discharge port (24) by the fixed hood partition plate (48). It is discharged to the air passage of the hood storage (46). Further, in the movable hood part (45), the movable hood partition plate (49) passes along the air passages partitioned by the movable hood partition plate (49), and a gap (53) as shown in FIG. The induced flow A (70) in the direction A flowing from the air supply port (23) and the hood (4) from the air hole (56)
4) It is distributed to the guide flow B (71) in the B direction that flows downward. The induced flow A (70) acts to guide oil smoke from the intake port (23) to the filter (32), and the induced flow B (70)
(71) creates an intake curtain under the movable hood (45),
Oil smoke that leaks from the front of the hood (44)
4) It has the effect of being wound inside and its wind direction is shown in Fig. 4 (b).
As shown in FIG. 5, the induced flow A (70) and the shape of the lower piece (55) of the air supply branch plate (50) cause the vector A (72) to incline. The guide flow B (71) is smaller than the guide flow A (70), and its value is set to about 50% or less of the guide flow A (70). The air supply volume is set to about 20% of the exhaust volume. When stopping the operation, the operation unit (6
When the stop switch (68) of 3) is turned off, the air volume switching 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), the operation switch (61) is turned off, and the control circuit Is turned off and the exhaust blower (27) and the air supply blower (37) are stopped. On the other hand, the attachment / detachment of the filter (32) is always performed by the elastic member (32) that urges the filter (32) downward as indicated by the alternate long and short dash line in FIG.
Push b) upward with the filter (32), and
2) is removed from the filter receiving part (18) and the filter (32)
Even when mounting, the elastic member (32b) is rotated and set upward.

[Advantages of the Invention] According to the present invention, when the filter is mounted below the suction port of the exhaust casing in the exhaust passage on the rear side of the main body, the upper peripheral edge of the filter is brought into contact with the elastic member and pushed up in the exhaust direction. By moving the lower peripheral edge of the filter to the filter receiving portion, the filter is easily held by the elastic member and the filter receiving portion, and the removal of the filter from the main body should be performed in the reverse order. The filter can be easily attached and detached without screws or the like. Since the filter is located on the intake port side below the intake port and its position is low, its attachment / detachment operation becomes easier.

Also, since the filter is tilted behind the body,
The oil and the like collected in the filter will flow into the oil sump below the filter, thereby preventing accidental dripping of oil.

Further, since the exhaust casing incorporating the exhaust blower is located on the front side of the main body and the exhaust passage is provided on the rear side of the main body, the exhaust passage can be narrowed,
The filter to be passed over this can also be downsized, and the filter can be handled easily and the filter itself can be easily cleaned.

[Brief description of drawings]

1 is a front view showing an embodiment of the present invention, FIG. 2 is a side sectional view showing the same exhaust action, FIG. 3 is a side sectional view showing the same air supply action, and FIG. 4 (a). , (B) is also a partial perspective view showing the flow of the exhaust air flow and the air supply flow, and a vector diagram showing the air supply flow in the downward direction of the hood, and FIG. 5 is a side sectional view showing the same when the movable hood is movable. 6 is a side sectional view showing a state in which the movable hood portion is inserted into the hood storage portion, FIGS. 7 (a) and 7 (b) are partial sectional views showing the attachment and detachment of the filter, and FIG. 8 is the same filter. FIG. 9 is a perspective view showing how the filter receiving portion and the oil sump are engaged with each other, and FIG. 10 is a side sectional view showing a conventional range hood. Note that (18) is the filter receiving part, (19) is the notch part, and (19
a) cutout, (20) outer casing, (21) exhaust port, (22)
Is an inlet, (23) is an inlet, (24) is an outlet, (25) is an air supply passage, (26) is an exhaust passage, (27) is an exhaust blower,
(32) is a filter, (32b) is an elastic member, (33) is an oil sump, (37) is an air blower for air supply, (44) is a hood, (47) is a partition plate, and (50) is an air supply branch plate. Is.

Claims (1)

[Claims] 1. An exhaust port having an intake port opened on the lower surface of the main body and an intake port disposed on the front side of the main body and communicating with the intake port on the rear side, and having an exhaust blower inside. A casing, formed between the intake port and the suction port,
An exhaust passage located on the back side of the main body, a filter arranged at an angle inclined with respect to the exhaust direction of the exhaust passage, covering the exhaust passage, and located on the intake port side with respect to the intake port; And an elastic member for elastically retaining at least a part of the upper peripheral edge of the filter on the filter receiving portion side so as to be displaceable in the exhaust direction of the exhaust passage, and a filter receiving portion for holding the lower portion on the rear surface side of the main body. A range hood fan, characterized in that a member and an oil sump located below the filter receiving part for accumulating oil are provided.