CN116697423A - Fume exhaust fan - Google Patents

Abstract

The application discloses a range hood, which comprises a first shell and a second shell, wherein the first shell is provided with a first inner cavity and a first smoke suction port communicated with the first inner cavity, the first shell comprises a first plate body, and the first plate body is provided with the first smoke suction port; the second casing is connected with the first side of the first casing and protrudes out of the first casing, and is located on one side, far away from the hearth plane, of the first plate body when in use, the second casing is formed with a second inner cavity communicated with the first inner cavity and a second smoking opening communicated with the second inner cavity, and the second smoking opening is located on one side, far away from the first casing, of the second casing. Compared with the scheme of arranging the first smoking port and the second smoking port on the first plate body in the related art, the air inlet space at the second smoking port on the second shell body can be increased, the smoking amount at the second smoking port is enhanced, and the use effect of the range hood is improved.

Description

Fume exhaust fan

Technical Field

The application relates to the field of electrical equipment, in particular to a range hood.

Background

The range hood works by utilizing the fluid dynamics principle, and the range hood sucks and discharges the oil smoke through a fan assembly arranged in the inner cavity of the range hood. The range hood in the related art has the problem of poor oil smoke absorption effect.

Disclosure of Invention

The application mainly aims to provide a range hood, and aims to solve the problem of poor smoke absorbing effect of the range hood in the related technology.

In order to achieve the above object, a range hood according to an embodiment of the present application includes:

the first shell comprises a shell body and a first plate body connected with the shell body, the first plate body is positioned on a first side of the first shell, a first inner cavity is formed by the shell body and the first plate body in a surrounding mode, and a first smoke suction port communicated with the first inner cavity is formed in the first plate body; and

the second shell is connected with the first side of the first shell and protrudes out of the first shell, the second shell is positioned at one side of the first plate body far away from the hearth plane when in use, the second shell is provided with a second inner cavity communicated with the first inner cavity and a second smoking port communicated with the second inner cavity, and the second smoking port is positioned at one side of the second shell far away from the first shell;

the fan assembly is located the first inner chamber, follows the rotation axis direction of fan assembly, first plate body with the second casing is located the homonymy of fan assembly.

According to the technical scheme, the second shell is designed to protrude out of the first shell at the first side of the first shell, the second smoking opening is arranged on the protruding second shell, and compared with the scheme of arranging the first smoking opening and the second smoking opening on the first plate in the related art, the air inlet space at the second smoking opening on the second shell can be increased, the smoking amount at the second smoking opening is increased, and the using effect of the range hood is improved. The first plate body provided with the first smoke suction port and the second shell provided with the second smoke suction port are designed to be positioned on the same side of the fan assembly, so that the structural regularity of the range hood can be improved, and the effects of convenience in cleaning and the like can be achieved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of a first range hood according to an embodiment of the present application when a first cover plate opens a second smoke suction port;

fig. 2 is a schematic view of an internal structure of the range hood shown in fig. 1 when the first cover plate opens the second smoke suction port;

fig. 3 is a projection view of an air inlet, a first smoke suction port and a second smoke suction port on a first plane in the range hood shown in fig. 1;

fig. 4 is a projection view of a second plate body on a first plate body in a second range hood according to an embodiment of the present application;

fig. 5 is a cross-sectional view of the range hood shown in fig. 4;

fig. 6 is a cross-sectional view of a third range hood according to an embodiment of the present application;

fig. 7 is a perspective view of a fourth range hood according to an embodiment of the present application when the first cover plate opens the second smoke suction port;

fig. 8 is a front view of the range hood shown in fig. 1 with the second housing and the first plate removed;

fig. 9 is a perspective view of a first cover plate, a first plate body, a first transmission member, a mounting frame and a transmission rod in the range hood shown in fig. 1;

fig. 10 is a perspective view of a first transmission member, a driving member and a mounting bracket in the range hood shown in fig. 1;

fig. 11 is a perspective view of fig. 10 at another view angle.

Reference numerals illustrate: 1. a range hood; 11. a first housing; 111. a first lumen; 112. a first smoke suction port; 1121. a third region; 113. a smoke gathering section; 114. a first plate body; 1141. a fifth edge; 1142. a sixth edge line; 115. a second plate body; 1151. a seventh edge; 1152. an eighth edge; 116. a side plate; 1161. a first side plate; 1162. a second side plate; 117. a second deflector; 118. a check valve; 1181. a connecting plate; 1182. a ninth edge; 1183. a tenth edge; 119. a second screen; 12. a fan assembly; 121. an air inlet; 1211. a first region; 1212. an axis of rotation; 1213. a midline; 122. a front plate; 123. a rear plate; 124. a safety net; 13. a first cover plate; 131. a first edge; 132. a second edge; 133. a first edge; 134. a second edge; 14. a second housing; 141. a second lumen; 142. a second smoking port; 1421. a second region; 1422. a second boundary line; 143. a third plate body; 144. a fourth plate body; 145. a fifth plate body; 146. a sixth plate body; 151. a first transmission member; 1511. a first link; 1512. a second link; 1513. a third link; 15131. a clamping protrusion; 1514. a fourth link; 1515. a fifth link; 15151. a first surface; 1516. a baffle; 15161. a first opening; 152. a driving member; 1521. a motor; 1531. a first connection portion; 1532. a second connecting portion; 154. a transmission rod; 16. a mounting frame; 161. a first structure portion; 162. a second structure portion; 163. a limit structure; 164. a mounting plate; 1641. a first panel; 1642. a second panel; 165. a bracket; 1651. a first portion; 1652. a second portion; 1653. a bending part; 17. a first deflector; 171. a third edge; 172. a fourth edge; 18. a first screen; 19. an oil cup; p, a hearth plane; a. a first plane; x, a first direction; y, central axis.

The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. 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 application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; 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 application can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present application may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present application.

Referring to fig. 1 and 2, an embodiment of the present application provides a range hood 1, where the range hood 1 includes a first housing 11, a fan assembly 12, a first cover 13, and a second housing 14.

Specifically, the first housing 11 is formed with a first inner chamber 111 and a first smoke suction port 112 communicating with the first inner chamber 111; alternatively, the first housing 11 may include a housing main body and a first plate 114 connected to the housing main body, where the first plate 114 is located on a first side of the first housing 11, the first plate 114 and the housing main body enclose a first inner cavity 111, and a first smoking port 112 is disposed on the first plate 114. The second casing 14 is connected to the first side of the first casing 11 and protrudes from the first casing 11, the second casing 14 is located at a side of the first plate 114 away from the cooking bench plane p in use, the second casing 14 is formed with a second inner cavity 141 communicating with the first inner cavity 111 and a second smoke suction port 142 communicating with the second inner cavity 141, and the second smoke suction port 142 is located at a side of the second casing 14 away from the first casing 11.

Alternatively, the second housing 14 is connected to the first side of the first housing 11 and protrudes from the first housing 11, and the second housing 14 may be connected to the first side of the first housing 11 and protrudes from the first plate 114. Specifically, at least a portion of the second housing 14 may be located at the first side of the first housing 11, as seen in a direction perpendicular to the hob plane p from the first plate 114 toward the second housing 14. Still further, at least a portion of the contour of the second housing 14 forming the second smoke suction port 142 may be the first side of the first housing 11, as seen from the first plate 114 toward the second housing 14, in a direction perpendicular to the hob plane p.

According to the application, the second shell 14 is designed to protrude from the first shell 11 at the first side of the first shell 11, and the second smoke suction port 142 is arranged on the protruding second shell 14, so that compared with the scheme of arranging both the first smoke suction port and the second smoke suction port on the first plate in the related art, the air inlet space at the second smoke suction port 142 on the second shell 14 can be increased, the smoke suction amount at the second smoke suction port 142 is increased, and the use effect of the range hood 1 is improved.

The fan assembly 12 is located in the first inner cavity 111, and the fan assembly 12 has an air inlet 121 for generating negative pressure suction force, so that oil smoke can be sucked into the first inner cavity 111 through the first smoke suction port 112 and/or sucked into the second inner cavity 141 through the second smoke suction port 142, and the kitchen is not filled with the oil smoke, so that the cooking experience of a user can be improved.

In order to ensure that the range hood 1 has a better oil smoke absorbing effect, please refer to fig. 1 and 3, if an area surrounded by the projection of the contour line of the air inlet 121 of the fan assembly 12 on the first plane a is defined as a first area 1211, an area surrounded by the projection of the contour line of the second smoke suction port 142 on the first plane a is defined as a second area 1421, and more than 50% of the first area 1211 may be located in the second area 1421. Wherein the first plane a is perpendicular to the rotational axis 1212 of the fan assembly 12.

More than 50% of the first region 1211 is located within the second region 1421, which can be generally understood as: more than 50% of the area surrounded by the whole opening of the air inlet 121 is opposite to the second smoke suction port 142, so that the air inlet 121 of the fan assembly 12 is ensured to have enough exposed area at the second smoke suction port 142, and further the second smoke suction port 142 is enabled to have enough negative pressure suction force, and the smoke absorption effect at the second smoke suction port 142 is improved. Preferably, more than 60% of the first region 1211 may be located within the second region 1421.

If the air inlet 121 and the second smoke exhaust 142 are both in a substantially regular geometric shape, for example, the air inlet 121 is substantially circular, the second smoke exhaust 142 is substantially rectangular, when more than 50% of the first area 1211 is located in the second area 1421, a first boundary line (not shown) of the second smoke exhaust 142 away from the cooking bench plane p may be located on a side of a contour line of the air inlet 121 away from the cooking bench plane p, a second boundary line 1422 of the second smoke exhaust 142 near the cooking bench plane p may be flush with a center line 1213 of the air inlet 121, or the second boundary line 1422 may be located on a side of the center line 1213 of the air inlet 121 near the cooking bench plane p. Wherein the center line 1213 of the air inlet 121 substantially bisects the air inlet 121 and is parallel to the cooktop plane p.

Alternatively, the axis of rotation 1212 of the fan assembly 12 may be parallel to the cooktop plane p, in which case the first plane a perpendicular to the axis of rotation 1212 would be perpendicular to the cooktop plane p. It should be noted that the rotation axis 1212 of the fan assembly 12 may also intersect the cooking bench plane p, for example, an acute angle between the rotation axis 1212 of the fan assembly 12 and the cooking bench plane p is greater than or equal to 60 ° and less than 90 °, so as to reduce the precision requirement during assembly and facilitate assembly.

Optionally, the area surrounded by the projection of the first smoke exhaust port 112 on the first plane a is the third area 1121, and the third area 1121 may be staggered from the first area 1211. Further alternatively, the third region 1121 is located on a side of the first region 1211 that is closer to the cooktop plane p when the range 1 is in use. The first smoke absorbing port 112 is arranged closer to the hearth plane p, so that the smoke generated at the hearth plane p can be absorbed to the first smoke absorbing port 112 more timely.

Optionally, referring to fig. 1 and 2, the range hood 1 may further include a first baffle 17, where the first baffle 17 is located in the first inner cavity 111 and is disposed corresponding to the first smoke suction port 112, and a distance between a third line 171, which is close to the cooking bench plane p when the first baffle 17 is used, and the first plate 114 is smaller than a distance between a fourth line 172, which is far from the cooking bench plane p, of the first baffle 17 and the first plate 114. In this way, the first baffle 17 may guide the oil smoke entering the first smoke exhaust 112 toward the fan assembly 12, and improve the oil smoke absorbing capacity of the range hood 1 at the first smoke exhaust 112.

Optionally, the fan assembly 12 includes a front plate 122 facing the first plate 114, and the front plate 122 is provided with an air inlet 121, and the fourth edge 172 of the first deflector 17 is located on a side of the front plate 122 facing away from the first plate 114.

Optionally, the range hood 1 further includes a first mesh plate 18, where the first mesh plate 18 is located in the first inner cavity 111 and between the first baffle 17 and the fan assembly 12, and the first mesh plate 18 connects a fourth line 172 of the first baffle 17 with the first plate 114. The arrangement of the first screen plate 18 can improve the safety performance of the range hood 1.

Alternatively, the range hood 1 may have a first operation mode in which the first smoke suction port 112 is opened and the second smoke suction port 142 is closed; in the second mode of operation the first smoke port 112 is open and the second smoke port 142 is open. In the first working mode, the oil smoke mainly enters the first inner cavity 111 through the first smoke suction port 112 and is finally discharged; alternatively, the first operation mode may be operated at a time of cooking such as cooking in which soot is light, and/or the first operation mode may be operated at a time of not cooking to purify the indoor air. In the second working mode, the oil smoke can enter the first inner cavity 111 through the first smoke suction port 112 and enter the second inner cavity 141 through the second smoke suction port 142; alternatively, the second mode of operation may be operated when cooking with heavy oil smoke such as quick-fry is performed.

The first cover plate 13 is disposed corresponding to the second smoke suction port 142, and the first cover plate 13 has a first position and a second position, where the first cover plate 13 closes the second smoke suction port 142. The first cover 13 in the second position opens the second smoke suction port 142. For example, when the range hood 1 is idle, the first cover 13 may be in the first position to close the second smoke suction port 142, so as to prevent dust and the like from entering the second cavity 141 of the second housing 14 through the second smoke suction port 142, or prevent the fan assembly 12 from being exposed to damage. When the range hood 1 is in operation, the first cover plate 13 can be in the second position to open the second smoke suction port 142, so that the oil smoke can be sucked into the second inner cavity 141 through the second smoke suction port 142 after the fan assembly 12 is started.

Optionally, in the second position, a distance between the first edge 131 of the first cover 13, which is close to the cooking bench plane p in use, and the second plane is larger than a distance between the second edge 132 of the first cover 13, which is far from the cooking bench plane p, and the second plane, which is perpendicular to the opening central axis of the second smoke suction port 142 and is located on one side of the first cover 13, which is close to the second smoke suction port 142. Thus, under the second position, the first cover plate 13 can play the effect of gathering oil smoke, so that the oil smoke can be gathered in the smoke gathering section 113 between the first cover plate 13 and the second shell 14, and the oil smoke in the smoke gathering section 113 can enter the second inner cavity 141 through the second smoke suction port 142. And, the one end that draws in cigarette interval 113 is close to top of a kitchen range plane p is wider, and the one end that keeps away from top of a kitchen range plane p is narrower, and the oil smoke that the top of a kitchen range plane p department produced is convenient for get into in drawing in cigarette interval 113 through wider opening, guarantees into the cigarette volume. The oil smoke entering the smoke gathering section 113 can be blocked by the inner plate surface of the opened first cover plate 13 so as to enter the second smoke suction port 142; that is, the opened first cover plate 13 can guide the oil smoke to be transmitted, so that the smoke inlet amount at the second smoke suction port 142 can be improved, and the using effect of the range hood 1 can be improved.

Optionally, the casing body of the first casing 11 includes a second plate 115 disposed opposite to the first plate 114, where the second plate 115 may be used to fit the wall surface when the range hood 1 is in use. Alternatively, in a direction perpendicular to the second plate body 115, a distance h1 between the first edge 131 of the first cover plate 13 and the second plate body 115 in the second position is greater than or equal to 350mm. So that the opening width of the first cover plate 13 is large enough to reduce the problem of oil smoke escape. Further alternatively, in a direction perpendicular to the second plate body 115, a distance h1 between the first edge 131 of the first cover plate 13 and the second plate body 115 in the second position is greater than or equal to 400mm. Alternatively, in a direction perpendicular to the second plate 115, a distance h1 between the first edge 131 and the second plate 115 at the second position may be substantially equal to a width of the cooking bench plane p, so as to substantially solve the problem of oil smoke escape.

Alternatively, the angle θ between the first cover plate 13 and the second plane in the second position may be greater than or equal to 50 ° and less than or equal to 90 °. After the first cover plate 13 is opened, the negative pressure area is downwards moved while ensuring enough air inflow, and the oil smoke absorbing effect at the second smoke suction port 142 is improved.

Alternatively, the first plate 114 and the second plate 115 may be disposed on opposite sides of the fan assembly 12 in the direction of the rotational axis 1212 of the fan assembly 12, and the first plate 114 and the second plate 115 may be substantially parallel. The first plate 114 and the second plate 115 may be substantially flat plates.

Alternatively, the second casing 14 may have a substantially cylindrical structure, and the second casing 14 may include a third plate 143, a fourth plate 144, a fifth plate 145 and a sixth plate 146, where the third plate 143 is disposed facing the cooking bench plane p in use, the fourth plate 144 is disposed opposite to the third plate 143, the fifth plate 145 and the sixth plate 146 are disposed opposite to each other, and the fifth plate 145 is connected between one end of the fourth plate 144 and one end of the third plate 143, and the sixth plate 146 is connected between the other end of the fourth plate 144 and the other end of the third plate 143. The second housing 14 has two opposite openings, where the second housing 14 is connected to the first housing 11 corresponding to one of the openings so as to communicate with the first cavity 111 of the first housing 11 through the opening, and the other opening of the second housing 14 forms a second smoke suction port 142.

Alternatively, the third plate 143, the fourth plate 144, the fifth plate 145, and the sixth plate 146 may be flat plates. The fifth plate 145 may have a substantially trapezoidal shape, and an upper bottom of the trapezoid is used to form the second smoke suction port 142, and a lower bottom of the trapezoid is connected to the first housing 11. The sixth plate 146 may have a substantially trapezoidal shape, and an upper bottom of the trapezoid is used to form the second smoke suction port 142, and a lower bottom of the trapezoid is connected to the first housing 11. Alternatively, the fifth plate 145 and the sixth plate 146 may have any other shape such as a parallelogram, which is not limited in this embodiment of the present application.

The housing body of the first housing 11 may further include a side plate 116 connected between the first plate 114 and the second plate 115, and the first plate 114, the second plate 115, and the side plate 116 may collectively enclose the first cavity 111.

Optionally, in an exemplary embodiment, referring to fig. 4, the outer contour line of the inner panel surface of the first plate 114 may have a fifth side line 1141 and a sixth side line 1142 that are disposed opposite to each other along the first direction x, the projected pattern of the outer contour line of the inner panel surface of the second plate 115 on the inner panel surface of the first plate 114 may have a seventh side line 1151 and an eighth side line 1152 that are disposed opposite to each other along the first direction x, the seventh side line 1151 may be located between the fifth side line 1141 and the sixth side line 1142, and the eighth side line 1152 may be located between the fifth side line 1141 and the sixth side line 1142. Wherein the first direction x is perpendicular to the rotational axis 1212 of the fan assembly 12 and parallel to the cooktop plane p. In this way, the width dimension of the first cavity 111 of the first housing 11 along the first direction x at the first plate 114 is smaller than the dimension along the first direction x at the second plate 115, which is beneficial to the airflow circulation in the range hood 1.

Alternatively, in the first direction x, the spacing between the seventh and eighth lines 1151, 1152 may be at least 60mm smaller than the spacing between the fifth and sixth lines 1141, 1142.

Optionally, referring to fig. 5, the side plate 116 may include a first side plate 1161 and a second side plate 1162 spaced apart along the first direction x. The angle between the first side plate 1161 and the first plate 114 may be greater than or equal to 30 ° and less than 90 °. The angle between the second side plate 1162 and the first plate 114 may be greater than or equal to 30 ° and less than 90 °.

In another exemplary embodiment, referring to fig. 6, the range hood 1 may include at least one second deflector 117, the second deflector 117 being located in the first cavity 111 of the first housing 11, the second deflector 117 being located at one side of the fan assembly 12 along the first direction x. One end of the second deflector 117 is connected to an edge of the first plate 114 on one side of the fan assembly 12 in the first direction x, and the other end extends toward a direction approaching the second plate 115; and the distance between the second deflector 117 and the rotation axis 1212 gradually decreases in the direction from the first plate 114 to the second plate 115.

When the second guide plate 117 is arranged in the range hood 1, the structural adjustment of the first inner cavity 111 can be realized by means of the second guide plate 117, so that the diversity of the structural design of the side plate 116 can be realized. For example, this can be achieved by means of a second deflector 117: the first cavity 111 of the first housing 11 has a width dimension in the first direction x at the first plate 114 that is smaller than a dimension in the first direction x at the second plate 115.

Alternatively, the number of the second deflectors 117 may be two, and the two second deflectors 117 are distributed on two opposite sides of the fan assembly 12 along the first direction x, so that the air intake on two sides of the fan assembly 12 is approximately balanced, and the oil smoke absorbing effect on two sides of the fan assembly 12 is approximately balanced.

Optionally, the fan assembly 12 includes a front plate 122, a rear plate 123 disposed opposite to the front plate 122, and the air inlet 121 is disposed on the front plate 122. Alternatively, the rotational axis 1212 of the fan assembly 12 may be parallel to the central axis y of the first housing 11. Preferably, the spacing between the rotational axis 1212 of the fan assembly 12 and the central axis y of the first housing 11 is less than or equal to 100mm. The distance between the rotation axis 1212 and the central axis y is controlled within 100mm, so that smoking difference of the left side and the right side of the fan assembly 12 can be reduced on the premise of meeting the installation requirement.

To enhance the safety performance of the fan assembly 12, the fan assembly 12 may further include a safety net 124, and the safety net 124 may be disposed at the front plate 122 and cover the air inlet 121. Alternatively, the middle portion of the safety net 124 may be convex toward a direction away from the front plate 122.

It should be noted that, the space distance between the safety net 124 on the fan assembly 12 and the first housing 11 and the first cover 13 in any state may be greater than or equal to 2mm, so as to ensure the normal operation of the range hood 1 and avoid scratch. Optionally, referring to fig. 7, the range hood 1 may further include a second screen 119 disposed at the second smoke suction port 142, and the second screen 119 may be connected to the second housing 14. Optionally, the space distance between the safety net 124 on the fan assembly 12 and the second net plate 119 may be greater than or equal to 2mm, so as to ensure the normal operation of the range hood 1 and avoid scratch.

Optionally, referring to fig. 8, the range hood 1 further includes a check valve 118, and the check valve 118 is located at the top of the first housing 11. Specifically, the check valve 118 may have a connection plate 1181 connected to the first housing 11, the connection plate 1181 having a ninth edge line 1182 and a tenth edge line 1183 that are oppositely distributed along the first direction x, and a distance h2 between the ninth edge line 1182 and the central axis y is less than or equal to 250mm; preferably less than or equal to 200mm. Optionally, a spacing between tenth edge 1183 and central axis y is less than or equal to 250mm; preferably less than or equal to 200mm. Therefore, the whole machine equipment can be adapted to the existing cabinet structure, the European style changing user does not need to adjust the cabinet, and the suitability is stronger.

Referring to fig. 9, the range hood 1 may further include a first transmission member 151 and a driving member 152, where the first transmission member 151 is connected to the driving member 152 and the first cover 13, and is configured to drive the first cover 13 to switch between a first position and a second position under the driving of the driving member 152.

Alternatively, the first transmission member 151 may be configured to rotate the first cover 13 relative to the opening end surface of the second smoke suction port 142 when the driving member 152 drives to move, so as to close the second smoke suction port 142 or open the second smoke suction port 142. That is, the first cover 13 is turned over to open and close the second smoke suction port 142, so that the range hood 1 can be miniaturized compared with the case that the first cover 13 is translated along the direction perpendicular to the central axis of the opening of the second smoke suction port 142 to open and close the second smoke suction port 142. For example, the inner surface of the first cover plate 13 has a second edge 132 far from the cooking bench plane p, and the first cover plate 13 can rotate approximately with the second edge 132 as a rotation axis to realize opening and closing of the second smoke suction port 142.

The first transmission member 151 may be any structure that can realize the flip-open of the first cover 13. For example, the first transmission member 151 may be substantially a six-bar linkage mechanism to transmit rotation of the first cover plate 13. Specifically, referring to fig. 10, the range hood 1 may include a first structure portion 161 and a second structure portion 162 installed in the first housing 11 and spaced apart from each other. The first transmission 151 may include a first link 1511, a second link 1512, a third link 1513, a fourth link 1514, and a fifth link 1515, the first link 1511 having a first connection portion 1531 and a second connection portion 1532 disposed at intervals; one end of the second link 1512 is rotatably connected to the first connecting portion 1531 of the first link 1511, the other end is rotatably connected to one end of the third link 1513, and the other end of the third link 1513 is rotatably connected to the first structure portion 161. One end of the fourth link 1514 is rotatably connected to the second connection portion 1532 of the first link 1511, the other end is rotatably connected to one end of the fifth link 1515, the other end of the fifth link 1515 is rotatably connected to the second structure portion 162, and the middle portion of the fifth link 1515 is also rotatably connected to the middle portion of the second link 1512.

The first link 1511 is connected to the first cover 13, and the third link 1513 is connected to the driving member 152 at the first structure portion 161 or to the driving member 152 at the second structure portion 162 at the fifth link 1515, so that the first cover 13 is switched between the first position and the second position under the driving of the driving member 152.

If the third link 1513 is connected to the first structure 161 and connected to the driving member 152, the third link 1513 not only drives the end of the second link 1512 away from the third link 1513 to move outside the first smoking port 114, but also drives the end of the fourth link 1514 away from the fifth link 1515 to move outside the first smoking port 114 under the driving of the driving member 152 when the first cover 13 is switched from the first position to the second position. That is, when the first cover 13 is switched from the first position to the second position, the first connection portion 1531 and the second connection portion 1532 of the first link 1511 connected to the first cover 13 are both moved toward the outside of the first smoke suction port 114 by the driving of the driving element 152, and thus the first cover 13 is not easily obstructed by the first housing 11 during the outward movement, and even if the inner plate surface of the first cover 13 is bonded to the opening end surface of the first smoke suction port 114 in the first position, the first cover 13 can be smoothly opened, and the structural compactness of the range hood 1 can be improved.

Wherein, the connection of the first connection rod 1511 to the first cover plate 13 may be: the first link 1511 is attached to the first cover 13 and connected by screws or the like. The third link 1513 may be connected to the driving element 152 at the first structure portion 161 or connected to the driving element 152 at the second structure portion 162 at the fifth link 1515: the third link 1513 is fixedly connected to the output shaft of the driving member 152 at any one of the first structural portion 161 and the fifth link 1515 at the second structural portion 162, so as to be rotatable under the drive of the output shaft of the driving member 152. In the embodiment of the present application, the third connecting rod 1513 is fixedly connected to the output shaft of the driving member 152 at the first structure portion 161.

Alternatively, the fifth link 1515 has a first surface 15151 facing the second link 1512, and both the second link 1512 and the fourth link 1514 may be located on a side of the first surface 15151 of the fifth link 1515. Alternatively, the second link 1512 has a second surface (not shown) facing the fifth link 1515, and both the fifth link 1515 and the third link 1513 may be located on a side of the second surface of the second link 1512. The layout of the second link 1512, the third link 1513, the fourth link 1514, and the fifth link 1515 in the direction perpendicular to the first surface 15151 is made compact, facilitating miniaturization of the first transmission 151.

Alternatively, referring to fig. 10 and 11, the first transmission 151 may further include a baffle 1516, and the baffle 1516 may be located at a side of the second surface of the second link 1512 with the fifth link 1515 and connected to the first link 1511. When the range hood 1 is assembled, the side where the baffle 1516 and the fifth link 1515 are located can be arranged towards the outer side of the range hood 1, so that the second link 1512 and the fourth link 1514 are located approximately at the inner side and can be shielded by the baffle 1516, and the structure is more attractive.

Alternatively, the thickness of the fifth link 1515, the thickness of the baffle 1516 may be substantially equal. The thickness of the second link 1512 and the thickness of the fourth link 1514 may be approximately equal, so that the thickness dimension of the first transmission member 151 is relatively light and thin, and the structure is relatively neat and compact. Wherein, the thickness of the fifth link 1515 may be a thickness dimension in a direction perpendicular to the first surface 15151, and the thickness of the shutter 1516, the thickness of the second link 1512, the thickness of the third link 1513, and the thickness of the fourth link 1514 may be thickness dimensions each in a direction perpendicular to the first surface 15151, respectively.

Further alternatively, the baffle 1516 may be provided with a first opening 15161, and the fifth link 1515 is rotatably connected with one end of the fourth link 1514 extending to the first opening 15161. The fifth connecting rod 1515 is extended to the first opening 15161 of the baffle 1516, so that when the first cover plate 13 is opened, the gap between the baffle 1516 and the fifth connecting rod 1515 can be reduced, the phenomenon of clamping hands can be avoided, the safety of the range hood 1 is improved, and meanwhile, the range hood has certain aesthetic property.

Alternatively, the first and second connection portions 1531 and 1532 may be only partial structures in the first link 1511. Specifically, a partial structure of the first link 1511 may be defined as the first connection portion 1531, and a partial structure may be defined as the second connection portion 1532, without providing the first connection portion 1531 and the second connection portion 1532 in addition, to simplify the structure of the range hood 1. Of course, the first connection portion 1531 and/or the second connection portion 1532 may also be configured differently from the first connection portion 1511, which is not limited in the embodiment of the present application.

Alternatively, the first and second structure parts 161 and 162 may be directly mounted on the first housing 11 to achieve fixation within the first housing 11. At least one of the first and second structures 161 and 162 may be mounted on the mounting frame 16 in the first housing 11, and the driving member 152 may be mounted on the mounting frame 16.

Alternatively, the first and second structural portions 161 and 162 may be only partial structures in the mounting frame 16. Specifically, a part of the structure of the mounting bracket 16 may be defined as the first structure portion 161, and a part of the structure may be defined as the second structure portion 162 without additionally providing the first structure portion 161 and the second structure portion 162, so as to simplify the structure of the range hood 1. Of course, the first structure portion 161 and/or the second structure portion 162 may also be a structure different from the mounting frame 16, which is not limited by the embodiment of the present application.

Optionally, a limiting structure 163 may be disposed on the mounting frame 16, where the limiting structure 163 may be used to limit the movement of the first cover 13 to the second position, so that the first cover 13 is more precisely opened to the second position.

Alternatively, the limiting structure 163 may be a flange. That is, the stopper 163 is formed by partially folding the mounting frame 16. The limit structure 163 may be provided corresponding to the third link 1513 and/or the fifth link 1515. Optionally, a catch may be provided on the third link 1513 and/or the fifth link 1515, which when moved to abut the limit structure 163, indicates that the first cover 13 is moved to the second position. In the embodiment of the application, the limiting structure 163 is disposed corresponding to the third connecting rod 1513, and the third connecting rod 1513 is provided with the locking protrusion 15131, when the locking protrusion 15131 moves to abut against the limiting structure 163, it indicates that the first cover plate 13 moves to the second position.

Alternatively, the movement of the first cover plate 13 to the first position is indicated when, of the edges of the inner plate surface of the first cover plate 13, a portion of the edges close to the hob plane p contacts the opening end face of the first smoke evacuation port 114.

Alternatively, the mounting frame 16 may include a mounting plate 164 and a bracket 165, where the mounting plate 164 is disposed corresponding to the second smoke suction port 142, the mounting plate 164 may have a plate structure substantially parallel to the central axis of the opening of the second smoke suction port 142, and the driving member 152, the first structure portion 161, and the second structure portion 162 are disposed on the board surface of the mounting plate 164.

Further alternatively, the mounting plate 164 may have a first plate surface 1641 and a second plate surface 1642 that are disposed opposite to each other, and the first structure portion 161, the second structure portion 162, and the first transmission member 151 may be located on a side of the first plate surface 1641 of the mounting plate 164. The driving member 152 and the bracket 165 may be located on a side of the second plate surface 1642 of the mounting plate 164.

The bracket 165 may include a first portion 1651 disposed corresponding to the second smoking opening 142, and a second portion 1652 connected to the first portion 1651, where the first portion 1651 is connected to the mounting plate 164, and a portion of the second portion 1652 near the first plate 114 may be bent substantially toward the first plate 1641 away from the second plate 1642 to form a bending portion 1653. At this time, the bent portion 1653 may be connected to the first plate 114.

Alternatively, the driving member 152 may include a motor 1521, and the output shaft of the driving member 152 may correspond to the output shaft of the motor 1521. The motor 1521 has a first state in which the motor 1521 drives the first transmission member 151 to move so that the first cover plate 13 is located at the first position, and a second state in which the motor 1521 drives the first transmission member 151 to move so that the first cover plate 13 is located at the second position, and when the motor 1521 is switched from the first state to the second state, the rotation stroke of the output shaft of the motor 1521 may be greater than or equal to 85 ° and less than or equal to 95 °. The rotation stroke of the output shaft of the motor 1521 will affect the rotation stroke of the first cover plate 13 when the first position is switched to the second position, that is, the opening degree of the first cover plate 13 to the first smoke suction port 112 is affected, and the rotation stroke of the output shaft of the motor 1521 is reasonably limited, so that a good smoke suction effect at the first smoke suction port 112 can be ensured on the premise of reducing the power consumption of the motor 1521.

Alternatively, the rotational travel of the first cover plate 13 about the second side line 132 may be greater than or equal to 65 ° and less than or equal to 75 ° when the first cover plate 13 is switched from the first position to the second position.

Alternatively, referring to fig. 9 again, the number of the first transmission members 151 may be two, the inner plate surface of the first cover plate 13 has a first edge 133 and a second edge 134 that are distributed relatively, and the two first transmission members 151 are respectively located on one side of the first edge 133 of the first cover plate 13 and one side of the second edge 134 of the first cover plate 13.

The driving member 152 may be disposed corresponding to one of the first driving members 151 and connected to one of the first driving members 151, and the two first driving members 151 are connected by a driving rod 154. By arranging the first transmission members 151 on both sides of the first cover plate 13, stability in the movement process of the first cover plate 13 can be improved.

Both ends of the driving rod 154 may be respectively mounted on the two first driving members 151 to achieve synchronous movement of the two first driving members 151. The two first transmission members 151 may have the same structure, and the two first transmission members 151 may be disposed in a substantially mirror image. Alternatively, when the number of the first transmission members 151 is two, the number of the mounting frames 16 may be two, and each mounting frame 16 may be provided corresponding to one first transmission member 151.

The drive rod 154 is located in the first interior cavity 111. Alternatively, the transmission lever 154 may be provided corresponding to the first cover plate 13. Alternatively, the drive rod 154 may be located on a side of the fan assembly 12 that is proximate to the first cover plate 13, and the drive rod 154 may also be located on a side of the fan assembly 12 that is distal from the first cover plate 13. The design of the drive rod 154 is varied and can be flexibly adjusted to suit specific needs.

The first smoke suction port 112 may be opened not only to suck the smoke during cooking but also to purify the indoor air during non-cooking. Of course, a ventilation opening (not shown) may be additionally provided on the first housing 11 to purify indoor air therethrough, which is not limited in the embodiment of the present application. Optionally, when the ventilation opening is provided on the first housing 11, the range hood 1 may be automatically operated at a given gear in a preset manner by a user to improve the air quality of the kitchen environment. Alternatively, the total ventilation area of the ventilation openings should be less than or equal to 10% of the total ventilation area of the other ventilation openings in the normal operation state of the whole range hood 1. Other total ventilation areas of the whole range hood 1 in a normal operation state may include the sum of ventilation areas of the first smoke suction port 112 and the second smoke suction port 142. The ventilation opening may include a plurality of small holes arranged at intervals to improve the safety performance of the range hood 1.

Referring again to fig. 1-8, in one exemplary arrangement, the front plate 122 of the fan assembly 12 is disposed adjacent the first plate 114 of the first housing 11. Thus, after the oil smoke enters the first inner cavity 111 through the first smoke suction port 112 on the first plate 114 and enters the second inner cavity 141 through the second smoke suction port 142, the oil smoke can timely enter the air inlet 121 of the fan assembly 12, and the oil smoke absorption speed is high and the absorption efficiency is high; and the structure of the range hood 1 can be made thinner. Optionally, the spacing between the front plate 122 and the first plate body 114 is greater than or equal to 20mm and less than or equal to 50mm. Alternatively, the distance between the rear plate 123 and the second plate body 115 is greater than or equal to 15mm and less than or equal to 40mm.

In another exemplary arrangement, the front plate 122 on the fan assembly 12 is disposed proximate the second plate 115 of the first housing 11. The front plate 122 provided with the air inlet 121 and the first plate 114 provided with the first smoke suction port 112 are arranged back to back, so that noise of the range hood 1 in the using process can be reduced, and the user experience is improved. Alternatively, the distance between the rear plate 123 and the first plate body 114 is greater than or equal to 25mm and less than or equal to 60mm; and/or, the spacing between the front plate 122 and the second plate body 115 is greater than or equal to 10mm and less than or equal to 30mm.

The range hood 1 may further include an oil cup 19, and the oil cup 19 is connected to the bottom of the first housing 11.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the application, and all equivalent structural changes made by the specification and drawings of the present application or direct/indirect application in other related technical fields are included in the scope of the present application.

Claims (10)

1. A range hood, comprising:

the first shell comprises a shell body and a first plate body connected with the shell body, the first plate body is positioned on a first side of the first shell, a first inner cavity is formed by the shell body and the first plate body in a surrounding mode, and a first smoke suction port communicated with the first inner cavity is formed in the first plate body; and

the second shell is connected with the first side of the first shell and protrudes out of the first shell, the second shell is positioned at one side of the first plate body far away from the hearth plane when in use, the second shell is provided with a second inner cavity communicated with the first inner cavity and a second smoking port communicated with the second inner cavity, and the second smoking port is positioned at one side of the second shell far away from the first shell;

the fan assembly is located the first inner chamber, follows the rotation axis direction of fan assembly, first plate body with the second casing is located the homonymy of fan assembly.

2. The range hood of claim 1 wherein the fan assembly has an air inlet, the area enclosed by the projection of the contour line of the air inlet on a first plane is a first area, the area enclosed by the projection of the second smoke suction opening on the first plane is a second area, more than 50% of the first area is located in the second area, and the first plane is perpendicular to the rotation axis of the fan assembly.

3. The range hood of claim 1, further comprising:

the first cover plate is arranged corresponding to the second smoking port and provided with a first position and a second position, and the first cover plate closes the second smoking port in the first position; and the first cover plate opens the second smoke suction port at the second position.

4. The range hood of claim 3 wherein in the second position, the first cover plate has a greater spacing between a first edge of the first cover plate that is closer to the cooktop plane than a second edge of the first cover plate that is farther from the cooktop plane when in use; the second plane is perpendicular to the opening central axis of the second smoking port and is positioned at one side of the first cover plate close to the second smoking port.

5. The range hood of claim 4, wherein,

in the second position, an included angle between the first cover plate and the second plane is greater than or equal to 50 degrees and less than or equal to 90 degrees; and/or

The shell body of the first shell comprises a second plate body which is arranged on the back of the first plate body, and the distance between the first side line of the first cover plate and the second plate body at the second position is larger than or equal to 350mm along the direction perpendicular to the second plate body.

6. The range hood of claim 1, wherein the range hood comprises a first mode of operation in which the first smoke-absorbing port is open and the second smoke-absorbing port is closed, and a second mode of operation in which the first smoke-absorbing port is open and the second smoke-absorbing port is open.

7. The range hood of claim 1 wherein the fan assembly has an air inlet, the area enclosed by the projection of the contour line of the air inlet on a first plane is a first area, the area enclosed by the projection of the first smoke suction port on the first plane is a third area, and the third area is positioned on one side of the first area near the range plane when the range hood is in use.

8. The range hood of claim 7, wherein the fan assembly includes a front plate facing the first plate, the front plate being spaced from the first plate, the front plate having the air inlet disposed therein.

9. The range hood of claim 7, further comprising:

the first guide plate is positioned in the first inner cavity and corresponds to the first smoking opening, and the distance between the third side line, which is close to the hearth plane, and the first plate body when the first guide plate is used is smaller than the distance between the fourth side line, which is far away from the hearth plane, of the first guide plate and the first plate body.

10. The range hood of claim 9, wherein the range hood,

the range hood further comprises a first screen plate, wherein the first screen plate is positioned in the first inner cavity and between the first guide plate and the fan assembly, and the first screen plate is connected with the fourth edge of the first guide plate and the first plate body; and/or

The fan assembly comprises a front plate facing the first plate body, the front plate is provided with the air inlet, and the fourth line of the first guide plate is positioned on one side of the front plate, which is away from the first plate body.