CN116263250A - Diversion noise reduction component and smoke machine - Google Patents

Abstract

The invention discloses a diversion and noise reduction component and a smoke ventilator, wherein the diversion and noise reduction component is provided with a cavity, the cavity extends along the length direction of the diversion and noise reduction component, the cross section area of the cavity changes along the length direction of the diversion and noise reduction component, the diversion and noise reduction component is provided with a silencing hole, and the silencing hole is communicated with the cavity. The diversion and noise reduction component can reduce noise of the smoke machine and improve user experience.

Description

Diversion noise reduction component and smoke machine

Technical Field

The invention relates to the technical field of household appliances, in particular to a diversion noise reduction component and a smoke ventilator.

Background

The kitchen fume extractor is as the electric appliance that is indispensable in the kitchen, can purify the kitchen environment, improves user's culinary art and experiences. The smoke ventilator can suck the mixture of the oil smoke and the water vapor generated in the cooking process into the fan, and the air pressure generated by the fan is used for discharging the oil smoke, namely the water vapor mixture. However, the smoke machine in the related art is loud and has poor user experience.

Disclosure of Invention

The present invention has been made based on the findings and knowledge of the inventors regarding the following facts and problems:

in the related art, the left side and the right side of the range hood are respectively provided with the air inlet screen plate, so that the problem of independent oil smoke suction when the left cooker and the right cooker are used can be solved, and the efficiency of oil smoke suction is improved. However, because the left air inlet screen plate and the right air inlet screen plate are communicated, when the left air inlet screen plate and the right air inlet screen plate are used simultaneously, air flow interference exists, noise is high, and user experience is affected.

Therefore, the invention provides the diversion and noise reduction component which can reduce the noise of the smoke machine and improve the user experience.

The invention also provides a smoke machine.

According to the diversion and noise reduction component, the diversion and noise reduction component is provided with the cavity, the cavity extends along the length direction of the diversion and noise reduction component, the cross section area of the cavity changes along the length direction of the diversion and noise reduction component, the diversion and noise reduction component is provided with the silencing hole, and the silencing hole is communicated with the cavity. According to the diversion and noise reduction component, air flow enters the machine box from the air inlet, the diversion and noise reduction component can separate the air flow entering from the air inlet, so that the air flow is prevented from interfering with each other, the noise is reduced, the cross-sectional area of the cavity in the diversion and noise reduction component is changed, the noise of the air flow can be further reduced, the noise generated by the air flow can be further reduced, and the user experience is good. Therefore, the diversion and noise reduction component can reduce noise during oil smoke extraction, thereby improving user experience.

Optionally, the cross-sectional area of the chamber increases gradually along the length of the flow directing noise reduction feature. The flow-guiding noise-reducing component can be matched with the air inlet of the smoke machine, so that air flow can flow stably, and the air-guiding noise-reducing effect is good.

Optionally, the diversion noise reduction feature comprises a first side plate and a second side plate, the first side plate and the second side plate are arranged oppositely, the cavity is formed between the first side plate and the second side plate, and at least part of at least one side plate of the first side plate and the second side plate is bent towards the inner side of the cavity. According to the diversion and noise reduction component, at least part of at least one side plate of the first side plate and the second side plate is bent towards the inner side of the cavity, so that the flowing direction of air flow is changed smoothly, vibration generated when the air flow hits the first side plate or the second side plate is reduced, noise generated when oil smoke is extracted is reduced, and user experience is improved.

Optionally, the flow-guiding noise-reducing component further includes a top plate, bottoms of two sides of the top plate in a width direction of the top plate are respectively connected with the first side plate and the second side plate, the first side plate extends along a direction away from the top plate and the second side plate, the second side plate extends along a direction away from the top plate and the first side plate, and an included angle is formed between an extending direction of the first side plate and an extending direction of the second side plate and a thickness direction of the top plate. According to the diversion and noise reduction component, the first side plate and the second side plate are connected with the top plate, and the impact force of the air flow on the first side plate and the impact force of the air flow on the second side plate can be mutually offset, so that the stability of the diversion and noise reduction component is improved, and diversion is facilitated.

Optionally, the at least one side plate includes first section, second section and third section that link to each other in its extending direction in proper order, first section with the roof links to each other, in orthogonal to the length direction's of roof projection plane, the projection of first section with the projection of third section is straight face, the projection of second section is the arcwall face. According to the diversion noise reduction component, the plate surfaces of the first side plate and the second side plate are approximately curved surfaces, so that the flowing direction of air flow can be changed smoothly, vibration generated when the air flow hits the first side plate is reduced, noise generated when oil smoke is extracted is reduced, and user experience is improved.

Optionally, an included angle α is formed between a side surface of the first section away from the top plate and a top surface of the top plate, and α is 5 ° to 15 °. According to the diversion and noise reduction component, when the value of the included angle alpha exceeds 15 degrees, the top plate can interfere with parts on the upper portion of the top plate, and if the diversion and noise reduction component is installed, the size of a case in the up-down direction is increased, so that the occupied space of a smoke machine is increased, and the user experience is poor. When the included angle alpha is smaller than 5 degrees, the gap between the top plate and the part on the upper part of the top plate is too large, air flow entering the chassis is disturbed, and the flow guiding and noise reducing effects are poor. The flow guiding and noise reducing component provided by the embodiment of the invention has the advantages that alpha is in the range, and the flow guiding and noise reducing effects are good.

Optionally, the top plate has a first end and a second end that are oppositely disposed in a length direction of the diversion noise reduction feature, and a ratio of a width of the first end of the top plate to a width of the second end of the top plate is 0.5-0.7. According to the flow-guiding noise-reducing component, the top plate is arranged in the mode, so that the flow-guiding effect of the flow-guiding noise-reducing component is good, and the flow-guiding effect of the smoke machine is good.

According to the diversion and noise reduction component provided by the embodiment of the invention, the ratio of the first end part to the second end part of the top plate is limited, so that the first side plate and the air inlet are conveniently arranged in parallel, the second side plate and the air inlet are conveniently arranged in parallel, uniform flow of air flow in the extending direction of the diversion and noise reduction component is facilitated, and the diversion effect of the diversion and noise reduction component is further improved.

Optionally, the second segment has a first end and a second end that are oppositely disposed in a length direction of the flow-directing noise reduction feature, and a ratio of a radius of curvature of the first end of the second segment to a radius of curvature of the second end of the second segment is 0.5-0.7. According to the flow-guiding noise-reducing component, the second section is arranged in the mode, so that the flow-guiding effect of the flow-guiding noise-reducing component is good, and the flow-guiding effect of the smoke machine is good.

Optionally, an angle β is formed between the extending direction of the first section and the thickness direction of the top plate, and β is 0 ° -10 °. According to the diversion and noise reduction component provided by the embodiment of the invention, the included angle beta is arranged, so that the noise generated by the direct impact of the air flow on the first section is avoided, the air flow is guided to gradually flow upwards, and the diversion and noise reduction effect of the diversion and noise reduction component is further improved.

Optionally, the top surface of the top plate has a first side edge and a second side edge which are oppositely arranged in the width direction, and an included angle gamma is formed between the first side edge and the second side edge, and gamma is 15 ° -20 °. According to the diversion and noise reduction component, the first side edge and the second side edge are arranged at an included angle, so that the first side plate is convenient to adapt to the air inlet, the second side plate is convenient to adapt to the air inlet, and diversion and noise reduction are facilitated.

Optionally, the top surface of the top plate is isosceles trapezoid. According to the diversion and noise reduction component, the shape of the top plate is a symmetrical graph, the spatial structures at the two sides of the top plate are identical, when the left cooker and the right cooker are used simultaneously, the air flows entering from the left side and the right side of the smoke machine are identical in size, the situation that one side of the air flow is large and the other side of the air flow is small is avoided, and the diversion and noise reduction component is beneficial to diversion and noise reduction stably.

Optionally, the plurality of the silencing holes are multiple, the plurality of the silencing holes are divided into multiple groups, the multiple groups of silencing holes are arranged at intervals along the extending direction of the at least one side plate, and each group of silencing holes comprises a plurality of silencing holes arranged at intervals along the length direction of the top plate. According to the diversion noise reduction component, the plurality of silencing holes are formed in the diversion noise reduction component, so that the noise reduction effect of the diversion noise reduction component can be improved, and the user experience is improved.

Optionally, the interval between the adjacent silencing holes is 13mm-15mm; and/or the silencing hole is a circular hole, and the diameter of the silencing hole is 2.5mm-3.5mm. According to the diversion noise reduction component, the silencing holes with different sizes can be designed according to the requirements, so that the diversity of products is increased.

Optionally, the flow-guiding noise-reducing component further includes a noise-reducing cotton, the noise-reducing cotton is disposed in the chamber, and the noise-reducing cotton includes a straight section and an arc section connected to each other, the straight section is adjacent to the top plate compared to the arc section, at least a portion of the straight section is in contact with the at least one side plate, and the arc section is curved toward the inner side of the chamber. According to the diversion noise reduction component, the noise reduction cotton is arranged, so that the noise reduction capability of the smoke machine can be further enhanced on the basis of the noise reduction holes, and the user experience is improved.

The smoke machine of the invention comprises:

a chassis;

the fan is arranged in the case;

the diversion and noise reduction component is arranged in the chassis and is any one of the diversion and noise reduction components.

Optionally, the cross-sectional area of the chamber increases gradually in a direction toward the rear wall of the chassis.

According to the smoke machine provided by the invention, the cross section area of the cavity is gradually increased along the direction towards the rear wall surface of the machine case, so that the diversion and noise reduction component can be matched with the air inlet of the smoke machine, the smooth flow of air flow is facilitated, and the air diversion and noise reduction effect is better.

Optionally, the chassis includes the panel, be equipped with the air intake on the panel, the water conservancy diversion falls the noise reduction part with the air intake is relative to arrange and be located the fan bottom. According to the smoke machine, air flow entering from the air inlet can be guided into the fan through the diversion noise reduction component, and the smoke discharging effect is good.

Optionally, a side of the first section remote from the top plate is arranged parallel to an outer side of the panel.

Optionally, the distance between the diversion noise reduction part and the rear wall surface of the chassis is a first distance, and the ratio between the first distance and the length of the diversion noise reduction part is 0.4-0.7. According to the smoke machine provided by the embodiment of the invention, the diversion noise reduction component and the rear wall surface of the machine case are arranged at intervals, so that the diversion noise reduction component is convenient to install, the ratio of the first distance to the length of the diversion noise reduction component is 0.4-0.7, and howling between the diversion noise reduction component and the rear wall surface of the machine case can be avoided, and further user experience is affected.

Optionally, a distance between the fan and a front wall of the chassis is smaller than a distance between the fan and a rear wall of the chassis. According to the smoke ventilator disclosed by the invention, the rear wall surface of the case is connected with the wall, the fan is positioned at the front position in the case, and the space is arranged between the rear surface of the fan and the rear wall surface of the case, so that air flow passing through the diversion noise reduction component can enter the fan more smoothly from the rear of the fan, and the smoke ventilator is improved in effect.

Optionally, the distance between the fan and the front wall surface of the chassis is a second distance, the distance between the front wall surface of the chassis and the rear wall surface of the chassis is a third distance, and the ratio between the second distance and the third distance is 0-0.2. According to the smoke machine provided by the embodiment of the invention, the fans and the machine case are arranged at intervals, so that the fans are convenient to install, and the ratio of the second distance to the third distance is 0-0.2, so that the howling generated when air flows through the fans can be avoided, and the user experience is influenced.

Drawings

FIG. 1 is a schematic structural view of a flow directing noise reduction feature according to an embodiment of the present invention.

Fig. 2 is a schematic view in partial cross-section of a range hood according to an embodiment of the invention.

Fig. 3 is a schematic front view of fig. 2.

Fig. 4 is a schematic bottom view of a range hood according to an embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view of a range hood at another angle according to an embodiment of the present invention.

Fig. 6 is a left side schematic view of fig. 5.

Reference numerals:

a smoke machine 100;

a case 1; a front wall surface 101; a rear wall 102; a panel 103;

an air inlet 10; a first air inlet 11; a second air inlet 12; a lamp assembly 13; a bracket 131;

a diversion noise reduction component 2; a chamber 20; a first section 201; a first side 2011; a second section 202; a third section 203; a top plate 21; a first side 211; a second side 212; a first side plate 22; a second side plate 23; a sound deadening hole 24; a noise damping cotton 25;

and a blower 3.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

As shown in fig. 1 to 6, a smoke machine 100 according to an embodiment of the present invention includes a chassis 1, a fan 3, and a diversion noise reduction component 2, where the fan 3 and the diversion noise reduction component 2 are both disposed in the chassis.

In some embodiments, the chassis 1 includes a panel 103, and the panel 103 is provided with an air inlet 10, and the diversion and noise reduction component 2 is disposed opposite to the air inlet 10 and is located at the bottom of the fan 3.

As shown in fig. 2 to 6, a panel 103 is provided on a side of the range 100 facing the cooking bench, in other words, a panel 103 is provided on a lower surface of the range 100, a flow guiding noise reduction part 2 is provided below the blower 3, and the flow guiding noise reduction part 2 is disposed facing the air inlet 10 so as to guide the oil smoke entering from the air inlet 10 to the blower 3. The panel 103 is provided with an air inlet 10 so as to facilitate the entry of the cooking fume into the range hood 100. Therefore, the air flow entering from the air inlet 10 can be guided into the fan 3 through the diversion noise reduction component 2, and the effect of exhausting the oil smoke is good.

The panel 103 is provided with 1 air inlet 10 or a plurality of air inlets 10. Optionally, the air inlet 10 includes a first air inlet 11 and a second air inlet 12. Those skilled in the art will recognize that the first air inlet 11 and the second air inlet 12 are not parallel, and are arranged in a splayed shape according to a preset included angle, so that the effect of fume extraction is better.

In some embodiments, the distance between the flow-guiding noise reduction feature 2 and the rear wall surface of the chassis 1 is a first distance, and the ratio between the first distance and the length of the flow-guiding noise reduction feature 2 (the dimension of the flow-guiding noise reduction feature 2 in the front-rear direction) is 0.4-0.7. For example, the ratio between the first distance and the length of the flow directing noise reduction feature 2 is 0.4, 0.5, 0.7, etc. According to the smoke machine 100 provided by the embodiment of the invention, the diversion and noise reduction component 2 is arranged at intervals with the rear wall surface 102 of the chassis 1, so that the diversion and noise reduction component 2 is convenient to install, the ratio of the first distance to the length of the diversion and noise reduction component 2 is 0.4-0.7, and howling between the diversion and noise reduction component 2 and the rear wall surface 102 of the chassis 1 can be avoided, and further user experience is influenced. In some embodiments, as shown in fig. 6, the distance between the blower 3 and the front wall 101 of the chassis 1 is smaller than the distance between the blower 3 and the rear wall 102 of the chassis 1. For convenience of description, the front-rear direction shown in fig. 6 is hereinafter referred to as the front-rear direction of the smoke machine 100. The front surface of the range hood 100 is a front wall 101, and the rear surface of the range hood 100 is a rear wall 102. From this, the back wall 102 of machine case 1 links to each other with the wall, and fan 3 is located the position of machine case 1 in the front of, is equipped with the interval between the back surface of fan 3 and the back wall 102 of machine case 1 to the air current that the water conservancy diversion falls the part of making an uproar 2 more smoothly gets into in the fan 3 from the back of fan 3, in order to improve the effect of extracting oil smoke.

In some embodiments, the distance between the fan 3 and the front wall of the chassis 1 is a second distance, the distance between the front wall of the chassis 1 and the rear wall of the chassis 1 is a third distance, and the ratio between the second distance and the third distance is 0-0.2. For example, the second distance is 0.1 times, 0.15 times, 0.2 times, etc. the third distance. According to the smoke ventilator 100 provided by the embodiment of the invention, the fans 3 and the case 1 are arranged at intervals, so that the fans 3 can be conveniently installed, and the ratio of the second distance to the third distance is 0-0.2, so that the howling generated when air flows through the fans 3 can be avoided, and the user experience is influenced.

The flow diversion noise reduction features 2 of embodiments of the present invention are described in detail below with reference to fig. 1-6.

The diversion and noise reduction part 2 of the embodiment of the invention is provided with a cavity 20, the cavity 20 extends along the length direction (the front-back direction as shown in fig. 1) of the diversion and noise reduction part 2, the cross section area of the cavity 20 changes along the length direction of the diversion and noise reduction part 2, the diversion and noise reduction part 2 is provided with a silencing hole 24, and the silencing hole 24 is communicated with the cavity 20.

The diversion and noise reduction part 2 extends along the front-back direction, a cavity 20 is arranged in the diversion and noise reduction part 2, and the cross section area of the cavity 20 is changed along the front-back direction so as to be matched with the air inlet 10, and then the air is guided more smoothly. For example, the cross-sectional area of the chamber 20 gradually increases from front to back, or the cross-sectional area of the chamber 20 gradually decreases and then gradually increases in the front-rear direction. The shape of the sound deadening hole 24 is not limited, and for example, the shape of the sound deadening hole 24 is circular or rectangular or the like.

In the related art, air flows enter the case 1 from the air inlet 10, and multiple air flows entering from the air inlet 10 interfere with each other, so that noise is relatively high, and user experience is affected.

The working process of the diversion and noise reduction component 2 in the embodiment of the present invention is described by using the arrow direction in fig. 3 to indicate the airflow flowing direction, the airflow enters the chassis 1 from the air inlet 10, the diversion and noise reduction component 2 can separate the airflow entering from the air inlet 10, so as to avoid the mutual interference of the airflows, and thus noise is reduced, and the diversion and noise reduction component 2 is further provided with a noise reduction hole 24, the noise generated by the airflow can be further reduced by the noise reduction hole 24, and the user experience is good. Therefore, the diversion and noise reduction component 2 provided by the embodiment of the invention can reduce the noise during oil smoke extraction, thereby improving the user experience.

The smoke machine 100 of the embodiment of the invention has the advantages of low noise, good user experience and the like.

In some embodiments, as shown in FIG. 1, the cross-sectional area of the chamber 20 increases gradually along the length of the flow-directing noise reduction feature 2. In other words, the cross-sectional area of the chamber 20 gradually increases in a direction toward the rear wall surface 102 of the chassis 1. According to the flow-guiding noise-reducing component 2 provided by the embodiment of the invention, the cross section area of the cavity 20 is gradually increased along the front-back direction, so that the flow-guiding noise-reducing component 2 can be matched with the air inlet 10 of the smoke machine 100, the air flow can flow smoothly, and the air-guiding noise-reducing effect is good.

In some embodiments, the flow directing noise reduction feature 2 includes a first side plate 22 and a second side plate 23, the first side plate 22 and the second side plate 23 being disposed opposite one another, the cavity 20 being formed between the first side plate 22 and the second side plate 23, at least a portion of at least one of the first side plate 22 and the second side plate 23 being curved inward of the cavity 20.

As shown in fig. 1, the left side of the diversion and noise reduction part 2 is a first side plate 22, the right side of the diversion and noise reduction part 2 is a second side plate 23, and the first side plate 22 and the second side plate 23 enclose a cavity 20.

At least a portion of at least one of the first side plate 22 and the second side plate 23 is curved to the inside of the chamber, meaning that only a portion of the first side plate 22 is curved and the curved portion is curved to the inside of the chamber; alternatively, only a part of the second side plate 23 is curved, and the curved part is curved toward the inside of the chamber; alternatively, a portion of each of the first side plate 22 and the second side plate 23 is curved; alternatively, the entire plate of the first side plate 22 and the entire plate of the second side plate 23 are curved.

According to the diversion and noise reduction component 2 provided by the embodiment of the invention, at least part of at least one side plate of the first side plate 22 and the second side plate 23 is bent towards the inner side of the cavity, so that the flowing direction of air flow is changed smoothly, vibration generated when the air flow hits the first side plate 22 or the second side plate 23 is reduced, and noise generated when oil smoke is extracted is further reduced, and user experience is improved.

In some embodiments, the diversion and noise reduction feature 2 further includes a top plate 21, wherein bottoms of both sides of the top plate 21 in the width direction are respectively connected with a first side plate 22 and a second side plate 23, the first side plate 22 extends in a direction away from the top plate 21 and the second side plate 23, the second side plate 23 extends in a direction away from the top plate 21 and the first side plate 22, and an extending direction of the first side plate 22 and an extending direction of the second side plate 23 form an included angle with a thickness direction of the top plate 21.

For convenience of description, the technical solution of the present application will be further described below taking an example in which the width direction of the top plate 21 coincides with the left-right direction, which is shown in fig. 1, and the thickness direction of the top plate 21 coincides with the up-down direction.

As shown in fig. 1, the top plate 21 is provided between a first side plate 22 and a second side plate 23, the first side plate 22 is provided on the left side of the top plate 21 and the first side plate 22 extends leftward, the extending direction of the first side plate 22 intersects the up-down direction, the second side plate 23 is provided on the right side of the top plate 21 and the second top plate 21 extends rightward, and the extending direction of the second side plate 23 intersects the up-down direction.

According to the diversion and noise reduction component 2 provided by the embodiment of the invention, the first side plate 22 and the second side plate 23 are connected with the top plate 21, and the impact force of the air flow received by the first side plate 22 and the impact force of the air flow received by the second side plate 23 can be mutually offset, so that the stability of the diversion and noise reduction component 2 is improved, and diversion is facilitated.

Alternatively, the top plate 21, the first side plate 22, and the second side plate 23 are integrally formed.

In some embodiments, as shown in fig. 1, at least one side plate includes a first section 201, a second section 202, and a third section 203 that are sequentially connected in the extending direction, where the first section 201 is connected to the top plate 21, and in a projection plane orthogonal to the length direction of the top plate 21, the projection of the first section 201 and the projection of the third section 203 are both flat planes, and the projection of the second section 202 is an arc plane.

By at least one side panel comprising a first section 201, a second section 202 and a third section 203, which are connected in sequence in their direction of extension, it is meant that the first side panel 22 comprises a first section 201, a second section 202 and a third section 203; or the second side plate 23 includes a first section 201, a second section 202, and a third section 203; alternatively, the first side panel 22 and the second side panel 23 each include a first section 201, a second section 202, and a third section 203.

The projection plane orthogonal to the longitudinal direction of the top plate 21 is a plane perpendicular to the front-rear direction. The projection of the first section 201 and the projection of the third section 203 are both flat surfaces means that the surfaces of the first section 201 and the third section 203 are flat surfaces. The projection of the second section 202 as an arc surface means that the plate surface of the second section 202 is a curved surface.

As shown in fig. 1 and 3, taking the left air flow as an example, the air flow flows rightward after entering from the air inlet 10, and then gradually changes to flow upward after being guided by the first side plate 22. According to the diversion and noise reduction component 2 provided by the embodiment of the invention, the surface of the first side plate 22 is approximately a curved surface, so that the flowing direction of air flow can be changed smoothly, vibration generated when the air flow hits the first side plate 22 is reduced, noise generated when oil smoke is extracted is further reduced, and user experience is improved.

In some embodiments, the side of the first section 201 remote from the top plate 21 forms an angle α with the top surface of the top plate 21, and α is 5 ° -15 °.

As shown in fig. 1 and 6, the first section 201 extends in the up-down direction, the upper end of the first section 201 is connected to the top plate 21, and the lower end of the first section 201 is connected to the second section 202. The side of the first section 201 far away from the top plate 21 is a first side 2011, the first side 2011 is a cross section of the lower end of the first section 201, and an included angle between the cross section and the top surface of the top plate 21 is changed to be alpha.

For example, the included angle α is 5 degrees, 6 degrees, 10 degrees, 15 degrees, or the like. In the range of 5 degrees to 15 degrees, the larger the value of the included angle alpha is, the better the noise reduction effect of the diversion noise reduction component 2 is, but when the value of the included angle alpha exceeds 15 degrees, the top plate 21 can interfere with parts on the upper part of the top plate 21, if the diversion noise reduction component 2 is installed, the size of the case 1 in the up-down direction is increased, so that the space occupied by the smoke machine 100 is increased, and the user experience is poor. When the included angle alpha is smaller than 5 degrees, the gap between the top plate 21 and the parts on the upper part of the top plate 21 is too large, and the air flow entering the case 1 is disturbed, so that the flow guiding and noise reducing effects are poor. The flow guiding and noise reducing component 2, alpha, of the embodiment of the invention is in the range, and has good flow guiding and noise reducing effects.

Alternatively, the included angle α may range from 5 degrees to 7 degrees.

In some embodiments, as shown in fig. 6, the side of the first section 201 remote from the top panel 21 is disposed parallel to the outer side of the panel 103. In this embodiment, an included angle α is formed between the top surface of the top plate 21 and the outer side surface of the panel 103, and since the air inlet 10 is provided on the panel 103, the inclined angle of the panel 103 with respect to the rear wall 102 of the chassis is consistent with the inclined angle of the air inlet 10 with respect to the rear wall 102 of the chassis, and the flow guiding and noise reducing effects can be improved by forming the included angle α between the top surface of the top plate 21 and the air inlet 10. In some embodiments, the top plate 21 has first and second ends disposed opposite each other in the length direction of the flow-directing noise reduction feature 2 (front-to-back direction as shown in fig. 1), and the ratio of the width of the first end of the top plate 21 to the width of the second end of the top plate 21 is 0.5-0.7.

As shown in fig. 1, the first end of the top plate 21 is in front of the second end, the width of the first end is L1, the width of the second end is L2, L1 is 0.5 to 0.7 times L2, for example, L1 is 0.5, 0.6, 0.7 times L2. According to the diversion and noise reduction part 2 provided by the embodiment of the invention, the ratio of the first end part to the second end part of the top plate 21 is limited, so that the first side plate 22 and the first air inlet 11 are conveniently arranged in parallel, the second side plate 23 and the second air inlet 12 are conveniently arranged in parallel, the uniform flow of air flow in the front-back direction is facilitated, and the diversion effect of the diversion and noise reduction part 2 is further improved.

In some embodiments, the second section 202 has first and second ends disposed opposite in a length direction of the flow directing noise reduction feature 2 (front-to-back direction as shown in fig. 1), with a ratio of a radius of curvature of the first end of the second section 202 to a radius of curvature of the second end of the second section 202 being.

As shown in fig. 1, the first end of the second segment 202 is forward of the second end, the radius of curvature of the first end of the second segment 202 is R1, the radius of curvature of the second end of the second segment 202 is R2, and R1 is 0.5-0.7 times R2. For example, R1 is 0.5 times, 0.6 times, 0.7 times that of R2. According to the diversion and noise reduction component 2 provided by the embodiment of the invention, the first end part of the second section 202 is in gradual transition with the second end part of the second section 202, so that the diversion effect is good.

In some embodiments, the first section 201 extends at an angle β from the thickness direction (up-down direction) of the top plate 21, and β is 0 ° -10 °.

As shown in fig. 1, the extending direction of the first section 201 forms an angle β with the up-down direction, for example, the angle β is 0 degrees, 4 degrees, 10 degrees, or 2 degrees-8 degrees, etc. The flow-directing noise reduction feature 2 of the present embodiment,

the included angle beta is arranged, so that the air flow is prevented from directly striking the first section to generate noise, the air flow is guided to flow upwards gradually, and the flow guiding and noise reducing effects of the flow guiding and noise reducing component 2 are improved.

In some embodiments, the top surface of the top plate 21 has a first side 211 and a second side 212 disposed opposite each other in the width direction (left-right direction) thereof, and an included angle γ is formed between the first side 211 and the second side 212, and γ is 15 ° to 20 °.

As shown in fig. 1, the first side 211 is a side edge located at the left side of the top plate 21, the second side 212 is a side edge located at the right side of the top plate 21, and an included angle γ is formed between the first side 211 and the second side 212, for example, the included angle γ is 15 degrees, 16 degrees, 19 degrees, 20 degrees, or 16-18 degrees, or the like. In the flow-guiding noise-reducing component 2 of the embodiment of the invention, the first side 211 and the second side 212 form an included angle, so that the first side plate 22 is convenient to be matched with the first air inlet 11, the second side plate 23 is convenient to be matched with the second air inlet 12, and flow guiding and noise reduction are facilitated.

In some embodiments, as shown in fig. 1, the top surface of top plate 21 is isosceles trapezoid-shaped. According to the diversion and noise reduction component 2 provided by the embodiment of the invention, the shape of the top plate 21 is a symmetrical graph, the space structures at the two sides of the top plate 21 are identical, when the left and right cookers are used simultaneously, the air flows entering from the left and right sides of the smoke machine 100 are identical, the situation that one side of the air flow is larger and the other side of the air flow is smaller is avoided, and the diversion and noise reduction component 2 is favorable for diversion and noise reduction stably.

In some embodiments, the plurality of sound deadening holes 24 are plural, the plurality of sound deadening holes 24 are divided into plural groups, the plural groups of sound deadening holes 24 are arranged at intervals along the extending direction of at least one side plate, and each group of sound deadening holes 24 includes the plurality of sound deadening holes 24 arranged at intervals along the length direction (front-rear direction) of the top plate 21.

As shown in fig. 1, a plurality of groups of sound deadening holes 24 are provided on each of the first side plate 22 and the second side plate 23, and the plurality of groups of sound deadening holes 24 on each of the first side plate 22 and the second side plate 23 are arranged at intervals in the left-right direction, each group of sound deadening holes 24 including a plurality of sound deadening holes 24 arranged at intervals. According to the diversion and noise reduction component 2 provided by the embodiment of the invention, the diversion and noise reduction component 2 is provided with the plurality of silencing holes 24, so that the noise reduction effect of the diversion and noise reduction component 2 can be improved, and the user experience is improved.

Alternatively, the plurality of sets of sound deadening holes 24 on one of the first side plate 22 and the second side plate 23 are arranged at intervals in the left-right direction, and the plurality of sets of sound deadening holes 24 on the other are arranged in other directions, for example, the front-rear direction.

Alternatively, the sound deadening holes 24 may be arranged on the first section 201, or the sound deadening holes 24 may be arranged on the first section 201 and the second section 202, or the sound deadening holes 24 may be arranged on the first section 201, the second section 202, the third section 203.

It will be appreciated that the sound attenuation holes 24 may be in a matrix arrangement or may be in a staggered arrangement.

In other embodiments, the sound deadening holes 24 may be arranged randomly.

In some embodiments, the spacing between adjacent sound attenuation holes 24 is 13mm-15mm.

In some embodiments, sound deadening holes 24 are circular holes, and sound deadening holes 24 have a diameter of 2.5mm to 3.5mm.

As shown in fig. 1, the interval between the centers of two adjacent sound deadening holes 24 is 13mm to 15mm, for example, 13mm, 14mm, 15mm, or the like. According to the diversion and noise reduction component 2 provided by the embodiment of the invention, the silencing holes 24 with different sizes can be designed according to the requirements, so that the diversity of products is increased.

Alternatively, the interval between the adjacent two sound deadening holes 24 is equal, whereby the appearance is beautiful and the processing is facilitated.

The shape of the sound deadening hole 24 is circular, for example, the diameter of the sound deadening hole 24 is 2.5mm, 2.8mm, 3.2mm, 3.5mm, or the like, or the diameter of the sound deadening hole 24 is 2.8mm-3.2, or the like. Thus, the circular sound deadening hole 24 is easy to process, and the processing cost is reduced.

It will be appreciated that in other embodiments, the sound attenuating apertures 24 may be triangular, rectangular, oval, pentagram, etc.

In some embodiments, the flow-directing noise reduction feature 2 further includes a sound attenuation cotton 25, the sound attenuation cotton 25 being disposed within the chamber 20, and the sound attenuation cotton 25 including a straight section and an arcuate section connected to each other, the straight section being adjacent the top plate 21 as compared to the arcuate section, at least a portion of the straight section being in contact with at least one side plate, the arcuate section being curved toward the inside of the chamber 20.

As shown in fig. 1, the straight section of the noise damping cotton 25 is provided at the upper end and near the top plate 21, and the arc section of the noise damping cotton 25 is at the lower end. There are various ways of connecting the straight section to the side plates, for example, the left side surface of the straight section is in contact with the first side plate 22 or the right side surface of the straight section is in contact with the second side plate 23, or the left side surface of the straight section is in contact with the first side plate 22 and the right side surface of the straight section is in contact with the second side plate 23. According to the diversion and noise reduction component 2 provided by the embodiment of the invention, the noise reduction capacity of the smoke machine 100 can be further enhanced on the basis of the noise reduction holes 24 by arranging the noise reduction cotton 25, so that the user experience is improved.

In other embodiments, both the straight and arcuate sections are in contact with the side plates.

Alternatively, two silencing cottons 25 are provided, the two silencing cottons 25 are oppositely arranged along the left-right direction, the left side face of the left silencing cottons 25 is in contact with the first side plate 22, and the right side face of the right silencing cottons 25 is in contact with the second side plate 23.

Optionally, the noise damping cotton 25 is made of an environment-friendly flame retardant material.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (17)

1. The utility model provides a water conservancy diversion noise reduction part, its characterized in that, water conservancy diversion noise reduction part (2) have cavity (20), cavity (20) are followed the length direction of water conservancy diversion noise reduction part (2) extends, just the cross-sectional area of cavity (20) is followed the length direction of water conservancy diversion noise reduction part (2) changes, be equipped with on the water conservancy diversion noise reduction part (2) amortization hole (24), amortization hole (24) with cavity (20) intercommunication.

2. The flow-directing noise reduction feature of claim 1, wherein the cross-sectional area of the chamber (20) increases progressively along the length of the flow-directing noise reduction feature (2).

3. The flow-directing noise reduction feature of claim 1, wherein the flow-directing noise reduction feature (2) comprises a first side plate (22) and a second side plate (23), the first side plate (22) and the second side plate (23) being disposed opposite each other, the chamber (20) being formed between the first side plate (22) and the second side plate (23), at least a portion of at least one of the first side plate (22) and the second side plate (23) being curved inwardly of the chamber (20).

4. A flow-guiding noise reduction component according to claim 3, further comprising a top plate (21), the bottom of both sides of the top plate (21) in the width direction thereof being connected to the first side plate (22) and the second side plate (23), respectively, the first side plate (22) extending in a direction away from the top plate (21) and the second side plate (23), the second side plate (23) extending in a direction away from the top plate (21) and the first side plate (22), both the extending direction of the first side plate (22) and the extending direction of the second side plate (23) forming an angle with the thickness direction of the top plate (21).

5. The flow-directing noise reduction feature of claim 4, wherein the at least one side plate comprises a first section (201), a second section (202) and a third section (203) connected in sequence in the extending direction thereof, the first section (201) is connected with the top plate (21), in a projection plane orthogonal to the length direction of the top plate (21), the projection of the first section (201) and the projection of the third section (203) are both straight planes, and the projection of the second section (202) is an arc plane.

6. The flow directing noise reduction feature of claim 5 wherein the side of the first section (201) remote from the top plate (21) forms an angle α with the top surface of the top plate (21), and α is 5 ° -15 °;

and/or the top plate (21) has a first end and a second end which are oppositely arranged in the length direction of the diversion noise reduction feature, and the ratio of the width of the first end of the top plate (21) to the width of the second end of the top plate (21) is 0.5-0.7;

and/or the second section (202) has a first end and a second end arranged opposite each other in a length direction of the flow-guiding noise reduction feature, a ratio of a radius of curvature of the first end of the second section (202) to a radius of curvature of the second end of the second section (202) being 0.5-0.7;

and/or an included angle beta is formed between the extending direction of the first section (201) and the thickness direction of the top plate (21), and beta is 0-10 degrees.

7. The flow-directing noise reduction feature of claim 4 wherein the top surface of the top plate (21) has first (211) and second (212) sides disposed opposite each other in a width direction thereof, the first (211) and second (212) sides being at an angle γ, and γ is 15 ° -20 °;

and/or the top surface of the top plate (21) is isosceles trapezoid.

8. The flow directing and noise reducing feature as set forth in any one of claims 4-7, wherein the sound attenuating apertures (24) are plural, the plural sound attenuating apertures (24) being divided into plural groups, the plural groups of sound attenuating apertures (24) being spaced apart along the extension direction of the at least one side panel, each group of sound attenuating apertures (24) including plural sound attenuating apertures (24) spaced apart along the length direction of the top panel (21).

9. The flow directing noise reduction feature of claim 8 wherein the spacing between adjacent sound attenuation holes (24) is 13mm-15mm;

and/or the silencing hole (24) is a circular hole, and the diameter of the silencing hole (24) is 2.5mm-3.5mm.

10. The flow directing and noise reducing feature of any of claims 4-9 further comprising a sound damping cotton (25), the sound damping cotton (25) being disposed within the chamber (20) and the sound damping cotton (25) comprising a straight section and an arcuate section connected to each other, the straight section being adjacent the top plate (21) as compared to the arcuate section, at least a portion of the straight section being in contact with the at least one side plate, the arcuate section curving toward the inside of the chamber (20).

11. A smoke machine, comprising:

a chassis (1);

the fan (3) is arranged in the case (1);

a flow-directing noise reduction feature disposed within the chassis and being a flow-directing noise reduction feature (2) of any one of claims 1-10.

12. The machine according to claim 11, characterized in that the cross-sectional area of the chamber (20) increases gradually in a direction towards the rear wall (102) of the cabinet (1).

13. The smoke machine according to claim 11, characterized in that the machine box (1) comprises a panel (103), an air inlet (10) is arranged on the panel (103), and the diversion and noise reduction component (2) is arranged opposite to the air inlet (10) and is positioned at the bottom of the fan (3).

14. The smoke machine according to claim 13, characterized in that the flow-directing noise reduction feature (2) is according to claim 5 or 6, the side of the first section (201) remote from the top plate (21) being arranged parallel to the outer side of the face plate (103).

15. The smoke machine according to any one of claims 11-14, characterized in that the distance between the flow-guiding noise reduction feature (2) and the rear wall (102) of the chassis (1) is a first distance, the ratio between the first distance and the length of the flow-guiding noise reduction feature (2) being 0.4-0.7.

16. The smoke machine according to any one of claims 11-15, characterized in that the distance between the fan (3) and the front wall (101) of the machine box is smaller than the distance between the fan (3) and the rear wall (102) of the machine box.

17. The range hood according to claim 16, wherein the distance between the fan (3) and the front wall (101) of the housing (1) is a second distance, the distance between the front wall (101) of the housing (1) and the rear wall (102) of the housing (1) is a third distance, and the ratio between the second distance and the third distance is 0-0.2.

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