CN114440270A - Air outlet panel, range hood provided with air outlet panel and control method - Google Patents

Abstract

The invention discloses an air outlet panel, a range hood and a control method thereof, wherein the air outlet panel comprises a bracket and an air deflector rotationally arranged on the bracket, a motor for driving the air deflector to rotate is arranged on the bracket, a radial outward protruding limiting block is arranged on an output shaft of the motor, a first limiting part and a second limiting part are arranged on the bracket, and the limiting block is limited between a first limiting rib and a second limiting rib to rotate back and forth so as to limit the rotation angle of the air deflector. The range hood is provided with a fume suction inlet on the body, an air outlet panel outside the fume suction inlet, an air inlet on the body, an air outlet channel formed between the air inlet and the air outlet panel, and an air outlet fan installed in the air outlet channel. The range hood adjusts the air outlet angle of the air curtain through the rotation angle adjustment of the air deflector of the air outlet panel, so that the effect of preventing oil smoke diffusion is achieved.

Description

Air outlet panel, range hood provided with air outlet panel and control method

Technical Field

The invention relates to a range hood, in particular to an air outlet panel, a range hood provided with the air outlet panel and a control method.

Background

At present, the integral installation height of the European-style range hood determines that the range hood is far away from a pot generating oil smoke, the negative pressure loss is large, the oil smoke rising above the pot easily escapes from two sides of a smoke collecting cover, the oil smoke suction effect is poor, and the traditional range hood cannot suck back once the oil smoke is separated from an area. In order to improve the effect of the range hood, people improve the structure of the range hood, wherein a fan system of the range hood is improved by a common method, for example, the power of a fan is increased, for example, the structure of an impeller is improved, and the like.

For the existing range hood with the rectifying plate, under the action of the rectifying plate, the negative pressure area below the smoke collection cavity is changed from central to annular distribution, so that the control range of the range hood is expanded. When the oil smoke volume is larger, the oil smoke below the rectifying plate has a waiting process, so that the oil smoke is delayed to be sucked, and even the phenomenon of smoke leakage is generated. If the slot is formed in the middle of the rectifying plate, pressure relief can be caused, so that the annular negative pressure is weakened, and the oil smoke suction effect is poor. In addition, in the prior art, there is a range hood which improves the suction efficiency of the range hood by installing a cross flow fan, for example, in the energy-saving environment-friendly high-efficiency side suction range hood disclosed in the chinese invention patent application with the application number of 200910144426.3 (publication number of CN101614415A), the range hood is composed of a smoke suction fan, a smoke hood and a cross flow fan, the cross flow fan is installed at the edge of the smoke hood of the range hood, the air inlet of the cross flow fan is located above or on the side surface of the smoke hood, and the air outlet of the cross flow fan is located below the edge of the smoke hood. When the range hood works, the air curtain airflow formed by the cross flow fan enables the lampblack in the smoke hood and below the smoke hood to be prevented from escaping from the edge, the absorption height of the range hood to the lampblack below is effectively reduced, the coverage area for absorbing the lampblack is increased, the smoke hood absorption rate is greatly improved, the service power of the centrifugal fan is reduced, the power and the noise of the lampblack are greatly reduced, and the range hood is energy-saving and environment-friendly. Although, above-mentioned lampblack absorber of installing crossflow fan has above-mentioned advantage, this energy-concerving and environment-protective high-efficient limit is inhaled formula lampblack absorber only is applicable to the occasion of not installing the cowling panel in the petticoat pipe, if install the cowling panel in the petticoat pipe, then install crossflow fan at lampblack absorber petticoat pipe border and not only can not improve the lampblack absorber clean absorbing rate by a wide margin, can destroy the negative pressure distribution of collection petticoat pipe below on the contrary to lead to the oil absorption cigarette effect to descend.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide an air outlet panel with a simple structure and an adjustable air outlet angle within a certain range, in view of the above current state of the prior art.

The second technical problem to be solved by the present invention is to provide a range hood capable of forming an air curtain effect at the outer side of the oil fume suction inlet and improving the oil fume suction effect, aiming at the current situation of the prior art.

The third technical problem to be solved by the present invention is to provide a control method of a range hood capable of accurately adjusting the air outlet angle of the air curtain, aiming at the current state of the prior art.

The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides an air-out panel, includes the support and rotates the aviation baffle that sets up on the support, its characterized in that: the support is provided with a motor for driving the air deflector to rotate, a radial outward protruding limiting block is arranged on an output shaft of the motor, the support is provided with a first limiting part and a second limiting part, and the rotation angle of the air deflector is limited by limiting the limiting block between a first limiting rib and a second limiting rib to rotate back and forth.

In order to enable the motor to drive the air deflector to rotate, the air deflector is provided with a rotating shaft, the rotating shaft is connected with the motor output shaft through a shaft sleeve, and the limiting block is radially and convexly arranged on the outer wall of the shaft sleeve.

Preferably, the air guide plates comprise a first air guide plate and a second air guide plate which are adjacently arranged, and the first air guide plate and the second air guide plate are connected through a connecting rod and can keep synchronous rotation.

The first air deflector and the second air deflector can have various connecting structures, preferably, a first lug is arranged on the back surface of the first air deflector in an upward protruding mode, a second lug is arranged on the back surface of the second air deflector in an upward protruding mode, the connecting rod is U-shaped, the first end of the connecting rod is installed on the first lug, and the second end of the connecting rod is installed on the second lug.

Further preferably, the support includes panel support and installs the motor support on panel support, the motor is installed on motor support, first spacing portion and the spacing portion of second are the spacing protruding muscle of first spacing and the spacing protruding muscle of second of shaping on motor support.

In order to guide the movement of the limiting block, an arc-shaped guide convex rib is integrally formed between the first limit convex rib and the second limit convex rib, and the limiting block moves back and forth along the guide convex rib.

The technical scheme adopted by the invention for solving the second technical problem is as follows: this range hood, including the organism be equipped with the oil smoke sunction inlet on the organism, its characterized in that: the outer side of the oil smoke suction inlet is provided with the air outlet panel, the machine body is provided with an air inlet, an air outlet channel is formed between the air inlet and the air outlet panel, and an air outlet fan is arranged in the air outlet channel.

In order to form air curtain effects on the left side and the right side of the oil smoke suction inlet, the oil smoke suction inlet is arranged at the bottom of the machine body, and the air outlet panels are arranged on the left side and the right side of the oil smoke suction inlet.

In order to further improve the air curtain effect, the air outlet panel is also arranged at the rear side of the oil fume suction inlet.

Further preferably, the organism includes the fan dustcoat and locates the collection petticoat pipe of fan dustcoat below, install the range hood fan in the fan dustcoat, the central authorities of collection petticoat pipe are equipped with leads the cigarette board, the periphery of leading the cigarette board forms the oil smoke sunction inlet.

The air inlet of the air outlet channel can be arranged at a plurality of positions of the casing, preferably, the air inlet is arranged at the top of the fume collecting hood and positioned at the left side and the right side of the outer hood of the fan.

The technical scheme adopted by the invention for solving the third technical problem is as follows: according to the control method of the range hood, the motor of the air outlet panel is a stepping motor, and the control method comprises the following steps:

firstly, starting;

judging whether the oil fume suction fan is turned on from the current off state;

if yes, the stepping motor runs k steps forward, and the third step is carried out;

if not, the stepping motor keeps the current state unchanged, and the step C is carried out;

thirdly, judging whether the oil smoke is enlarged;

if yes, giving a corresponding air outlet adjusting angle alpha according to the size of the oil smoke, and turning to the fourth step;

if not, the step motor keeps the current step number and the air outlet angle is unchanged, and the fifth step is carried out;

fourthly, the stepping motor moves in the reverse direction k/360 multiplied by alpha;

judging whether the oil smoke suction fan is changed into a closed state from a current open state;

if yes, the stepping motor reversely runs k steps after the oil fume suction fan is turned off;

if not, returning to the step III;

and sixthly, ending.

Further preferably, in the control method of the range hood, the motor of the air outlet panel is a stepping motor, and the control method includes the following steps:

firstly, starting;

judging whether the oil fume suction fan is in a current opening state and in a previous closing state;

if yes, the stepping motor runs k steps forward, and the third step is carried out;

if not, turning to the fifth step;

thirdly, judging whether the oil smoke is enlarged;

if yes, giving a corresponding air outlet adjusting angle alpha according to the size of the oil smoke, and turning to the fourth step;

if not, the stepping motor keeps the current step number, the air outlet angle is unchanged, the current state of the range hood fan is equal to the current state of the range hood, and the step ninthly is carried out;

fourthly, the stepping motor moves in the reverse direction k/360 multiplied by alpha, the current state of the range hood fan is equal to the current state of the range hood, and the step ninthly is carried out;

judging whether the oil fume suction fan is in a current closed state and in a previous state;

if yes, after the oil smoke suction fan is turned off, the stepping motor reversely runs k steps and the step is transferred to the step ninthly;

if not, the step is carried out;

judging whether the oil fume suction fan is in a closed state at present and the previous state is in a closed state;

if yes, the stepping motor keeps the current step number and the air outlet angle unchanged, and the step ninthly is carried out;

if not, the oil fume suction fan is in the opening state at present and the last state is in the opening state, and the step is carried out;

seventhly, judging whether the oil smoke is enlarged;

if yes, giving a corresponding air outlet angle alpha according to the size of the oil smoke, and turning to the step eight;

if not, the stepping motor keeps the current step number and the air outlet angle is unchanged, and the step ninthly is carried out;

eighthly, carrying out reverse motion k/360 multiplied by alpha on the stepping motor, and turning to the step;

ninthly, ending and returning to the step (I).

Compared with the prior art, the invention has the advantages that: the range hood adopts an air curtain structure, and the air outlet angle of the air curtain is adjusted through the rotation angle adjustment of the air deflector of the air outlet panel, so that the effect of preventing the oil smoke from diffusing is achieved.

Drawings

Fig. 1 is a schematic structural view of an air outlet panel according to an embodiment of the present invention;

fig. 2 is a schematic view of a back structure of the air outlet panel shown in fig. 1;

fig. 3 is a schematic view of a partial structure of the air outlet panel shown in fig. 2 with a motor bracket removed;

FIG. 4 is a partially exploded view of an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a motor support according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of an outlet panel in a closed state of an air deflector according to an embodiment of the present invention

Fig. 7 is a schematic structural view of the air outlet panel according to the embodiment of the present invention when the air deflector is opened by 90 °;

fig. 8 is a schematic structural view of the air outlet panel according to the embodiment of the present invention when the air deflector is opened at 135 degrees;

fig. 9 is a schematic structural diagram of a range hood according to an embodiment of the present invention;

FIG. 10 is a schematic view of the range hood shown in FIG. 9 in another angle;

FIG. 11 is a logic control diagram of a control method of the range hood according to the embodiment of the present invention;

fig. 12 is a logic control diagram of another control method of the range hood according to the embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 4, the outlet panel 1 of the present embodiment includes a bracket 11, an air deflector 12 and a motor 13, the bracket 11 includes a panel bracket 111 and a motor bracket 112 mounted on the panel bracket 111, the air deflector 12 is mounted on the panel bracket 111, and the motor 13 is mounted on the motor bracket 112.

Specifically, the air guiding plate 12 includes a first air guiding plate 121 and a second air guiding plate 122 which are adjacently disposed, and both the first air guiding plate 121 and the second air guiding plate 122 are rotatably disposed on the panel bracket 111 and can rotate synchronously. The back surface of the first air deflector 121 is provided with a first lug 123 protruding upwards, the back surface of the second air deflector 122 is provided with a second lug 124 protruding upwards, a connecting rod 16 is arranged above the first lug 123 and the second lug 124, the connecting rod 16 is U-shaped, a first end of the connecting rod 16 is mounted on the first lug 123, and a second end of the connecting rod 16 is mounted on the second lug 124, so that the first air deflector 121 and the second air deflector 122 can be opened or closed synchronously through the connecting rod 16.

In this embodiment, the second air guiding plate 122 is provided with a rotating shaft 14, the rotating shaft 14 is opposite to the motor output shaft 131 and is connected through a shaft sleeve 15, when the motor 13 rotates, the second air guiding plate 122 can be driven to rotate, and the second air guiding plate 122 drives the first air guiding plate 121 to rotate synchronously through the connecting rod 16. The motor 13 is a stepping motor to precisely control the rotation angles of the first air deflector 121 and the second air deflector 122.

As shown in fig. 5 to 7, a first limiting convex rib 113 and a second limiting convex rib 114 are arranged on the motor bracket 112, that is, the first limiting convex rib 113 constitutes a first limiting portion, and the second limiting convex rib 114 constitutes a second limiting portion. A limiting block 151 protrudes radially outwards from the outer wall of the shaft sleeve 15, and the limiting block 151 is limited between the first limiting convex rib 113 and the second limiting convex rib 114 to rotate back and forth, so that the wind deflector 12 rotates at the present angle. In addition, in this embodiment, an arc-shaped guiding rib 115 is further integrally formed between the first limiting rib 113 and the second limiting rib 114, and the limiting block 151 moves back and forth along the guiding rib 115. As shown in fig. 6, when the limiting block 151 rotates to abut against the first limiting rib 113, the first air guiding plate 121 and the second air guiding plate 122 are in a closed state; as shown in fig. 7, when the limiting block 151 rotates to the middle position of the guide rib 115, the first air deflector 121 and the second air deflector 122 are in an open state of 90 °; as shown in fig. 8, when the stopper 151 rotates to abut against the second stopper rib 114, the first air guiding plate 121 and the second air guiding plate 122 are in a 135 ° open state. Therefore, the opening angle of the air deflector 12 can be controlled within the range of 0 to 135 degrees.

As shown in fig. 9 and 10, the range hood of the present embodiment is a top-suction range hood, and includes a body 2, the body 2 includes a fan housing 21 and a smoke collecting hood 22 disposed below the fan housing, a smoke suction fan (not shown) is installed in the fan housing 21, a smoke guide plate 6 is disposed in the center of the smoke collecting hood 22, and a smoke suction inlet 3 is formed at the periphery of the smoke guide plate 6, that is, the smoke suction inlet 3 is located at the bottom of the body 2. Air inlets 4 are arranged at the top of the smoke collecting hood 22 and at the left side and the right side of the fan housing 21, an air outlet channel is formed between the air inlets 4 and the air outlet panel 1, an air outlet fan 5 is arranged in the air outlet channel, and air sucked from the air inlets 4 is blown out through the air deflector 12 of the air outlet panel 1 after passing through the air outlet fan 5, so that an air curtain is formed. In this embodiment, the air outlet panels 1 are disposed on the left and right sides and the rear side of the oil smoke suction inlet 3, so that a surrounding air curtain can be formed to prevent oil smoke from diffusing.

As shown in fig. 11, the method for controlling the air outlet angle of the air outlet panel by the stepping motor of the range hood of the present embodiment includes the following steps:

firstly, starting;

judging whether the oil fume suction fan is turned on from the current off state;

if yes, the stepping motor runs k steps forward, and the third step is carried out;

if not, the stepping motor keeps the current state unchanged, and the step C is carried out;

thirdly, judging whether the oil smoke is enlarged;

if yes, giving a corresponding air outlet adjusting angle alpha according to the size of the oil smoke, and turning to the fourth step;

if not, the step motor keeps the current step number and the air outlet angle is unchanged, and the fifth step is carried out;

fourthly, the stepping motor moves in the reverse direction k/360 multiplied by alpha;

judging whether the oil fume suction fan is changed from a current opening state to a closing state;

if yes, the stepping motor reversely runs k steps after the oil fume suction fan is turned off;

if not, returning to the step III;

and sixthly, ending.

If the stepping motor moves for k steps and rotates for one circle, the stepping motor needs to move for k/360 steps when rotating for 1 degree. After the range hood fan is changed from the current closed state to the open state, the stepping motor moves forward k steps to enable the range hood fan to reach the first limit convex rib limit position, and then the angle of the air curtain air outlet is adjusted according to the size of the oil smoke. When the air outlet is expanded to the angle alpha, the stepping motor moves in the reverse direction for k/360 multiplied by alpha steps. And if the range hood fan is changed from the current opening state to the closing state, the stepping motor moves in the reverse direction k to reach the limit position of the second limit convex rib. The number of steps of the stepper motor may be given by a software program, which is of conventional design and will not be described further herein.

As shown in fig. 12, another method for controlling the air outlet angle of the air outlet panel by the stepping motor of the range hood of this embodiment includes the following steps:

firstly, starting;

judging whether the oil fume suction fan is in a current opening state and in a previous closing state;

if yes, the stepping motor runs k steps forward, and the third step is carried out;

if not, turning to the fifth step;

thirdly, judging whether the oil smoke is enlarged;

if yes, giving a corresponding air outlet adjusting angle alpha according to the size of the oil smoke, and turning to the fourth step;

if not, the stepping motor keeps the current step number, the air outlet angle is unchanged, the current state of the range hood fan is equal to the current state of the range hood, and the step ninthly is carried out;

fourthly, the stepping motor moves in the reverse direction k/360 multiplied by alpha, the current state of the range hood fan is equal to the current state of the range hood, and the step ninthly is carried out;

judging whether the oil fume suction fan is in a current closed state and in a previous state;

if yes, after the oil smoke suction fan is turned off, the stepping motor reversely runs k steps and the step is transferred to the step ninthly;

if not, the step is carried out;

judging whether the oil fume suction fan is in a closed state at present and the previous state is in a closed state;

if yes, the stepping motor keeps the current step number and the air outlet angle unchanged, and the step ninthly is carried out;

if not, the oil fume suction fan is in the opening state at present and the last state is in the opening state, and the step is carried out;

seventhly, judging whether the oil smoke is enlarged;

if yes, giving a corresponding air outlet angle alpha according to the size of the oil smoke, and turning to the step eight;

if not, the stepping motor keeps the current step number and the air outlet angle is unchanged, and the step ninthly is carried out;

eighthly, carrying out reverse motion k/360 multiplied by alpha on the stepping motor, and turning to the step;

ninthly, ending and returning to the step (I).

Claims (13)

1. The utility model provides an air-out panel (1), includes support (11) and rotates aviation baffle (12) of setting on the support, its characterized in that: the wind guide plate is characterized in that a motor (13) for driving the wind guide plate (12) to rotate is mounted on the support (11), a radial outward protruding limiting block is arranged on a motor output shaft (131), a first limiting part and a second limiting part are arranged on the support, and the limiting block is limited between a first limiting rib and a second limiting rib to rotate back and forth so as to limit the rotation angle of the wind guide plate.

2. An air outlet panel according to claim 1, characterized in that: the wind deflector (12) is provided with a rotating shaft (14), the rotating shaft (14) is connected with a motor output shaft (131) through a shaft sleeve (15), and the limiting block (151) is radially and convexly arranged on the outer wall of the shaft sleeve (15).

3. An air outlet panel according to claim 1, characterized in that: the air guide plate (12) comprises a first air guide plate (121) and a second air guide plate (122) which are arranged adjacently, and the first air guide plate (121) and the second air guide plate (122) are connected through a connecting rod (16) and can keep synchronous rotation.

4. An air outlet panel according to claim 3, characterized in that: the back of the first air deflector (121) is provided with a first lug (123) in an upward protruding mode, the back of the second air deflector (122) is provided with a second lug (124) in an upward protruding mode, the connecting rod (16) is U-shaped, the first end of the connecting rod (16) is installed on the first lug (123), and the second end of the connecting rod (16) is installed on the second lug (124).

5. An air outlet panel according to claim 1, characterized in that: support (11) include panel support (111) and install motor support (112) on the panel support, install on motor support (112) motor (13), first spacing portion and the spacing portion of second are spacing protruding muscle (113) of first spacing and the spacing protruding muscle (114) of second of shaping on motor support (112).

6. An air outlet panel according to claim 5, characterized in that: an arc-shaped guide convex rib (115) is integrally formed between the first limit convex rib (113) and the second limit convex rib (114), and the limit block (151) moves back and forth along the guide convex rib (115).

7. A range hood equipped with the air outlet panel of any one of claims 1 to 6, comprising a body (2), wherein the body (2) is provided with an oil smoke suction inlet (3), and the range hood is characterized in that: the outer side of the oil smoke suction inlet (3) is provided with the air outlet panel (1), the machine body (2) is provided with an air inlet (4), an air outlet channel is formed between the air inlet (4) and the air outlet panel (1), and an air outlet fan (5) is installed in the air outlet channel.

8. The range hood of claim 7, wherein: the oil smoke suction inlet (3) is arranged at the bottom of the machine body (2), and the air outlet panel (1) is arranged at the left side and the right side of the oil smoke suction inlet (3).

9. The range hood of claim 8, wherein: the air outlet panel (1) is also arranged at the rear side of the oil fume suction inlet (3).

10. The range hood of claim 7, wherein: organism (2) include fan dustcoat (21) and locate collection petticoat pipe (22) of fan dustcoat below, install the oil absorption cigarette fan in fan dustcoat (21), the central authorities of collection petticoat pipe (22) are equipped with smoke deflector (6), the periphery of smoke deflector (6) forms oil smoke suction inlet (3).

11. The range hood of claim 10, wherein: the air inlet (4) is arranged at the top of the fume collecting hood (22) and positioned at the left side and the right side of the fan outer cover (21).

12. A control method of the range hood of claim 10, characterized in that: the motor (13) of the air outlet panel (1) is a stepping motor, and the control method comprises the following steps:

firstly, starting;

judging whether the oil fume suction fan is turned on from the current off state;

if yes, the stepping motor runs k steps in the forward direction, and the step III is carried out;

if not, the stepping motor keeps the current state unchanged, and the step C is carried out;

thirdly, judging whether the oil smoke is enlarged;

if yes, giving a corresponding air outlet adjusting angle alpha according to the size of the oil smoke, and turning to the fourth step;

if not, the step motor keeps the current step number and the air outlet angle is unchanged, and the fifth step is carried out;

fourthly, the stepping motor moves in the reverse direction k/360 multiplied by alpha;

judging whether the oil smoke suction fan is changed into a closed state from a current open state;

if yes, the stepping motor reversely runs k steps after the oil fume suction fan is turned off;

if not, returning to the step III;

and sixthly, finishing.

13. A control method of the range hood of claim 10, characterized in that: the motor (13) of the air outlet panel (1) is a stepping motor, and the control method comprises the following steps:

firstly, starting;

judging whether the oil fume suction fan is in a current opening state and in a previous closing state;

if yes, the stepping motor runs k steps forward, and the third step is carried out;

if not, turning to the fifth step;

thirdly, judging whether the oil smoke is enlarged;

if yes, giving a corresponding air outlet adjusting angle alpha according to the size of the oil smoke, and turning to the fourth step;

if not, the stepping motor keeps the current step number, the air outlet angle is unchanged, the current state of the range hood fan is equal to the current state of the range hood, and the step ninthly is carried out;

fourthly, the stepping motor moves in the reverse direction k/360 multiplied by alpha, the current state of the range hood fan is equal to the current state of the range hood, and the step ninthly is carried out;

judging whether the oil fume suction fan is in a current closed state and in a previous state;

if yes, after the oil fume suction fan is turned off, the stepping motor reversely runs k steps, and ninthly is carried out;

if not, the step is carried out;

judging whether the oil fume suction fan is in a closed state at present and the previous state is in a closed state;

if yes, the stepping motor keeps the current step number and the air outlet angle unchanged, and the step ninthly is carried out;

if not, the oil fume suction fan is in the opening state at present and the last state is in the opening state, and the step is carried out;

seventhly, judging whether the oil smoke is enlarged;

if yes, giving a corresponding air outlet angle alpha according to the size of the oil smoke, and turning to the step eight;

if not, the stepping motor keeps the current step number and the air outlet angle is unchanged, and the step ninthly is carried out;

eighthly, carrying out reverse motion k/360 multiplied by alpha on the stepping motor, and turning to the step;

ninthly, ending and returning to the step (I).

Images