Range hood

Abstract

The application discloses a range hood, which comprises a first shell and a second shell. The first shell is formed 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 shell is connected to the first side of the first shell and protrudes from the first shell. In use, the second shell is located on the side of the first plate body away from the plane of the cooking bench. The second shell is formed with a second inner cavity communicated with the first inner cavity and a second smoke suction port communicated with the second inner cavity. The second smoke suction port is located on the side of the second shell away from the first shell. The second shell is designed to protrude from the first shell, and the second smoke suction port is arranged on the protruding second shell. Compared with the scheme in the prior art that the first smoke suction port and the second smoke suction port are both arranged on the first plate body, the air inlet space at the second smoke suction port on the second shell can be increased, the smoke suction amount at the second smoke suction port can be increased, and the use effect of the range hood can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electrical appliances, in particular to a range hood. BACKGROUND

[0002] The range hood is worked by using the principle of fluid dynamics, and the oil fume is sucked by the fan assembly installed in the inner cavity of the range hood. The range hood in the related art has the problem of poor oil fume absorption effect. SUMMARY

[0003] The main purpose of the present application is to provide a range hood, which aims to improve the problem of poor smoke absorption effect of the range hood in the related art.

[0004] To achieve the above purpose, the range hood provided by the embodiments of the present application comprises:

[0005] The first shell comprises a shell body and a first plate body connected to the shell body, the first plate body is located on the first side of the first shell, the shell body and the first plate body enclose a first inner cavity, and the first plate body is provided with a first smoke suction port in communication with the first inner cavity; and

[0006] The second shell is connected to the first side of the first shell and protrudes from the first shell, the second shell is located on the side of the first plate body away from the cooking bench plane during use, the second shell forms a second inner cavity in communication with the first inner cavity and a second smoke suction port in communication with the second inner cavity, and the second smoke suction port is located on the side of the second shell away from the first shell;

[0007] The fan assembly is located in the first inner cavity, and the first plate body and the second shell are located on the same side of the fan assembly along the rotation axis direction of the fan assembly.

[0008] In the technical scheme of the present application, the second shell is designed to protrude from the first shell on the first side of the first shell, and the second smoke suction port is arranged on the protruding second shell. Compared with the scheme of arranging the first smoke suction port and the second smoke suction port on the first plate body in the related art, the air inlet space at the second smoke suction port on the second shell can be increased, the smoke suction amount at the second smoke suction port can be increased, and the use effect of the range hood can be 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 located on the same side of the fan assembly, which can improve the structural regularity of the range hood and facilitate cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0009] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from the structures shown in the drawings without any creative effort.

[0010] Figure 1 A perspective view of the first range hood provided by the embodiment of the present application when the second smoke inlet is opened by the first cover plate.

[0011] Figure 2 A perspective view of the first range hood provided by the embodiment of the present application when the second smoke inlet is opened by the first cover plate. Figure 1 A perspective view of the first range hood provided by the embodiment of the present application when the second smoke inlet is opened by the first cover plate.

[0012] Figure 3 A perspective view of the first range hood provided by the embodiment of the present application when the second smoke inlet is opened by the first cover plate. Figure 1

[0013] A perspective view of the first range hood provided by the embodiment of the present application when the second smoke inlet is opened by the first cover plate. Figure 4

[0014] A perspective view of the first range hood provided by the embodiment of the present application when the second smoke inlet is opened by the first cover plate. Figure 5 Figure 4 A perspective view of the first range hood provided by the embodiment of the present application when the second smoke inlet is opened by the first cover plate.

[0015] Figure 6 A perspective view of the first range hood provided by the embodiment of the present application when the second smoke inlet is opened by the first cover plate.

[0016] Figure 7 A perspective view of the first range hood provided by the embodiment of the present application when the second smoke inlet is opened by the first cover plate.

[0017] Figure 8 Figure 1 A perspective view of the first range hood provided by the embodiment of the present application when the second smoke inlet is opened by the first cover plate.

[0018] Figure 9 A perspective view of the first range hood provided by the embodiment of the present application when the second smoke inlet is opened by the first cover plate. Figure 1

[0019] A perspective view of the first range hood provided by the embodiment of the present application when the second smoke inlet is opened by the first cover plate. Figure 10 Figure 1 A perspective view of the first range hood provided by the embodiment of the present application when the second smoke inlet is opened by the first cover plate.

[0020] Figure 11 Figure 10 A perspective view of the first range hood provided by the embodiment of the present application when the second smoke inlet is opened by the first cover plate.

[0021] ​​​​Explanation of reference numerals: 1, range hood; 11, first housing; 111, first inner cavity; 112, first smoke suction port; 1121, third area; 113, smoke gathering area; 114, first plate body; 1141, fifth edge line; 1142, sixth edge line; 115, second plate body; 1151, seventh edge line; 1152, eighth edge line; 116, side plate; 1161, first side plate; 1162, second side plate; 117, second flow guide plate; 118, check valve; 1181, connecting plate; 1182, ninth edge line; 1183, tenth edge line; 119, second mesh plate; 12, fan assembly; 121, air inlet; 1211, first area; 1212, rotation axis; 1213, center line; 122, front plate; 123, rear plate; 124, safety net; 13, first cover plate; 131, first edge line; 132, second edge line; 133, first edge; 134, second edge; 14, second housing; 141, second inner cavity; 142, second smoke suction port; 1421, second area; 1422, second boundary line; 143, third plate body; 144, fourth plate body; 145, fifth plate body; 146, sixth plate body; 151, first transmission member; 1511, first connecting rod; 1512, second connecting rod; 1513, third connecting rod; 15131, clamping protrusion; 1514, fourth connecting rod; 1515, fifth connecting rod; 15151, first surface; 1516, baffle; 15161, first opening; 152, driving member; 1521, motor; 1531, first connecting part; 1532, second connecting part; 154, transmission rod; 16, mounting frame; 161, first structure part; 162, second structure part; 163, limiting structure; 164, mounting plate; 1641, first plate surface; 1642, second plate surface; 165, bracket; 1651, first part; 1652, second part; 1653, bent part; 17, first flow guide plate; 171, third edge line; 172, fourth edge line; 18, first mesh plate; 19, oil cup; p, cooktop plane; a, first plane; x, first direction; y, center axis.

[0022] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0024] It should be noted that all the direction indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the direction indications will also change accordingly.

[0025] In addition, the descriptions such as "first", "second" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0026] In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In addition, the technical solutions of each embodiment of the present application can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection required by the present application.

[0028] Please refer to Figure 1 and Figure 2 The embodiments of the present application propose an extractor 1, which comprises a first shell 11, a fan assembly 12, a first cover plate 13 and a second shell 14.

[0029] Specifically, the first shell 11 is formed with a first inner cavity 111 and a first smoke suction port 112 in communication with the first inner cavity 111; optionally, the first shell 11 can include a shell main body and a first plate body 114 connected to the shell main body, the first plate body 114 is located at a first side of the first shell 11, the first plate body 114 and the shell main body enclose the first inner cavity 111, and the first smoke suction port 112 is arranged on the first plate body 114. The second shell 14 is connected to the first side of the first shell 11 and protrudes from the first shell 11, and the second shell 14 is located on a side of the first plate body 114 away from the cooktop plane p during use. The second shell 14 is formed with a second inner cavity 141 in communication with the first inner cavity 111 and a second smoke suction port 142 in communication with the second inner cavity 141, and the second smoke suction port 142 is located on a side of the second shell 14 away from the first shell 11.

[0030] Optionally, the second shell 14 is connected to the first side of the first shell 11 and protrudes from the first shell 11, and the second shell 14 can be connected to the first side of the first shell 11 and protrude from the first plate body 114. Specifically, in a direction perpendicular to the cooktop plane p, at least part of the second shell 14 can be located on the first side of the first shell 11 as viewed from the first plate body 114 toward the second shell 14. Further, in a direction perpendicular to the cooktop plane p, at least part of the outline of the second shell 14 forming the second smoke suction port 142 can be located on the first side of the first shell 11 as viewed from the first plate body 114 toward the second shell 14.

[0031] The second shell 14 is designed to protrude from the first shell 11 on the first side of the first shell 11, and the second smoke suction port 142 is arranged on the protruding second shell 14. Compared with the scheme in the related art that both the first smoke suction port and the second smoke suction port are arranged on the first plate body, 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 can be enhanced, and the use effect of the range hood 1 can be improved.

[0032] The fan assembly 12 is located in the first inner cavity 111, and the fan assembly 12 has an air inlet 121 for generating a negative pressure suction force to enable oil fume to be sucked into the first inner cavity 111 through the first smoke suction port 112 and / or into the second inner cavity 141 through the second smoke suction port 142, without causing the kitchen to be filled with oil fume, thereby improving the user's experience when cooking.

[0033] To ensure that the range hood 1 has a better oil fume suction effect, please refer to Figure 1 and Figure 3If the projection of the outline of the air inlet 121 of the fan assembly 12 on the first plane a is defined as a first area 1211, and the projection of the outline of the second smoke suction port 142 on the first plane a is defined as a second area 1421, more than 50% of the first area 1211 can be located in the second area 1421. The first plane a is perpendicular to the rotation axis 1212 of the fan assembly 12.

[0034] More than 50% of the first area 1211 located in the second area 1421 can be roughly understood as: more than 50% of the area surrounded by the entire opening of the air inlet 121 will be opposite to the second smoke suction port 142, which ensures that the air inlet 121 of the fan assembly 12 has sufficient exposed area at the second smoke suction port 142, and further makes the second smoke suction port 142 have sufficient negative pressure suction, thereby improving the oil fume absorption effect at the second smoke suction port 142. Preferably, more than 60% of the first area 1211 can be located in the second area 1421.

[0035] If the air inlet 121 and the second smoke suction port 142 are both roughly regular geometric shapes, for example, the air inlet 121 is roughly circular, and the second smoke suction port 142 is roughly rectangular, when more than 50% of the first area 1211 is located in the second area 1421, the first boundary line (not shown in the figure) of the second smoke suction port 142 away from the cooktop plane p in use can be located on the side of the outline of the air inlet 121 away from the cooktop plane p, and the second boundary line 1422 of the second smoke suction port 142 close to the cooktop plane p can be flush with the center line 1213 of the air inlet 121, or the second boundary line 1422 can be located on the side of the center line 1213 of the air inlet 121 close to the cooktop plane p. The center line 1213 of the air inlet 121 roughly divides the air inlet 121 and is parallel to the cooktop plane p.

[0036] Optionally, the rotation axis 1212 of the fan assembly 12 can be parallel to the cooktop plane p, at this time, the first plane a perpendicular to the rotation axis 1212 will be perpendicular to the cooktop plane p. It should be noted that the rotation axis 1212 of the fan assembly 12 can also intersect the cooktop plane p, for example, the acute angle between the rotation axis 1212 of the fan assembly 12 and the cooktop 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.

[0037] Optionally, the area surrounded by the projection of the first smoke suction port 112 on the first plane a is a third area 1121, and the third area 1121 can be arranged staggered with the first area 1211. Further optionally, the third area 1121 is located on the side of the first area 1211 close to the cooking bench plane p when the range hood 1 is in use. This makes the first smoke suction port 112 arranged closer to the cooking bench plane p, which is conducive to the timely absorption of the oil fume generated at the cooking bench plane p into the first smoke suction port 112.

[0038] Optionally, please refer to Figure 1 and Figure 2 , the range hood 1 can further include a first flow guide plate 17, which is arranged in the first inner cavity 111 and corresponds to the first smoke suction port 112. When the range hood 1 is in use, the distance between the third edge line 171 of the first flow guide plate 17 close to the cooking bench plane p and the first plate body 114 is smaller than the distance between the fourth edge line 172 of the first flow guide plate 17 away from the cooking bench plane p and the first plate body 114. In this way, the first flow guide plate 17 can guide the oil fume entering the first smoke suction port 112 towards the fan assembly 12, thereby improving the oil fume absorption capacity of the first smoke suction port 112 of the range hood 1.

[0039] Optionally, the fan assembly 12 includes a front plate 122 facing the first plate body 114, and the front plate 122 is provided with an air inlet 121. The fourth edge line 172 of the first flow guide plate 17 is located on the side of the front plate 122 away from the first plate body 114.

[0040] Optionally, the range hood 1 further includes a first mesh plate 18, which is arranged in the first inner cavity 111 and between the first flow guide plate 17 and the fan assembly 12. The first mesh plate 18 is connected to the fourth edge line 172 of the first flow guide plate 17 and the first plate body 114. The arrangement of the first mesh plate 18 can improve the safety performance of the range hood 1.

[0041] Optionally, the range hood 1 can have a first working mode and a second working mode. In the first working mode, the first smoke suction port 112 is open and the second smoke suction port 142 is closed. In the second working mode, the first smoke suction port 112 is open and the second smoke suction port 142 is open. In the first working mode, the oil fume mainly enters the first inner cavity 111 through the first smoke suction port 112 and is finally discharged. Optionally, the first working mode can be used when cooking with light oil fume such as steaming, and / or the first working mode can be used when no cooking is performed to purify indoor air. In the second working mode, the oil fume can enter the first inner cavity 111 through the first smoke suction port 112 and can also enter the second inner cavity 141 through the second smoke suction port 142. Optionally, the second working mode can be used when cooking with heavy oil fume such as stir-frying.

[0042] The first cover plate 13 is arranged corresponding to the second smoke inlet 142, and the first cover plate 13 has a first position and a second position. In the first position, the first cover plate 13 closes the second smoke inlet 142. In the second position, the first cover plate 13 opens the second smoke inlet 142. For example, when the range hood 1 is idle, the first cover plate 13 can be in the first position to close the second smoke inlet 142, so as to avoid dust and the like entering the second inner cavity 141 of the second shell 14 through the second smoke inlet 142, or to avoid damage caused by exposure of the fan assembly 12. When the range hood 1 is working, the first cover plate 13 can be in the second position to open the second smoke inlet 142, so that the oil fume can be sucked into the second inner cavity 141 through the second smoke inlet 142 after the fan assembly 12 is started.

[0043] Optionally, in the second position, the distance between the first edge line 131 of the first cover plate 13 close to the cooking bench plane p and the second plane is greater than the distance between the second edge line 132 of the first cover plate 13 away from the cooking bench plane p and the second plane, and the second plane is perpendicular to the opening central axis of the second smoke inlet 142 and located on the side of the first cover plate 13 close to the second smoke inlet 142. In this way, in the second position, the first cover plate 13 can have the effect of gathering oil fume, so that the oil fume can be gathered in the smoke gathering interval 113 between the first cover plate 13 and the second shell 14, and then the oil fume in the smoke gathering interval 113 can enter the second inner cavity 141 through the second smoke inlet 142. In addition, the end of the smoke gathering interval 113 close to the cooking bench plane p is wider, and the end of the smoke gathering interval 113 away from the cooking bench plane p is narrower, so as to facilitate the oil fume generated at the cooking bench plane p to enter the smoke gathering interval 113 through the wider opening, and to ensure the smoke entering amount. The oil fume entering the smoke gathering interval 113 can also be blocked by the inner plate surface of the opened first cover plate 13 to enter the second smoke inlet 142; that is, the opened first cover plate 13 can guide the transmission of the oil fume, can improve the smoke entering amount at the second smoke inlet 142, and can improve the use effect of the range hood 1.

[0044] Optionally, the shell body of the first shell 11 includes a second plate body 115 arranged opposite to the first plate body 114, and the second plate body 115 can be used to be attached to the wall surface when the range hood 1 is used. Optionally, in the direction perpendicular to the second plate body 115, the distance h1 between the first edge line 131 of the first cover plate 13 and the second plate body 115 in the second position is greater than or equal to 350 mm. The opening amplitude of the first cover plate 13 is large enough to reduce the problem of oil fume escaping. Further optionally, in the direction perpendicular to the second plate body 115, the distance h1 between the first edge line 131 of the first cover plate 13 and the second plate body 115 in the second position is greater than or equal to 400 mm. Optionally, in the direction perpendicular to the second plate body 115, the distance h1 between the first edge line 131 and the second plate body 115 in the second position can be substantially equal to the width of the cooking bench plane p, so as to basically solve the problem of oil fume escaping.

[0045] Optionally, the included angle θ between the first cover plate 13 and the second plane in the second position can 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 moved downward while ensuring sufficient air intake, thereby improving the oil fume absorption effect at the second smoke suction port 142.

[0046] Optionally, the first plate body 114 and the second plate body 115 can be distributed on opposite sides of the fan assembly 12 along the direction of the rotation axis 1212 of the fan assembly 12, and the first plate body 114 and the second plate body 115 can be substantially parallel. The first plate body 114 and the second plate body 115 can be substantially flat plates.

[0047] Optionally, the second shell 14 can be substantially in a cylindrical structure, and the second shell 14 can include a third plate body 143, a fourth plate body 144, a fifth plate body 145, and a sixth plate body 146. The third plate body 143 is arranged to face the cooktop plane p when in use. The fourth plate body 144 is arranged opposite to the third plate body 143. The fifth plate body 145 and the sixth plate body 146 are arranged opposite to each other, and the fifth plate body 145 is connected between one end of the fourth plate body 144 and one end of the third plate body 143. The sixth plate body 146 is connected between the other end of the fourth plate body 144 and the other end of the third plate body 143. The second shell 14 has two opposite openings, and the second shell 14 is connected to the first shell 11 at one of the openings to communicate with the first inner cavity 111 of the first shell 11 through the opening. The other opening of the second shell 14 forms the second smoke suction port 142.

[0048] Optionally, the third plate body 143, the fourth plate body 144, the fifth plate body 145, and the sixth plate body 146 can all be flat plates. The fifth plate body 145 can be substantially in a trapezoidal shape, and the upper base of the trapezoidal shape is used to form the second smoke suction port 142, and the lower base of the trapezoidal shape is connected to the first shell 11. The sixth plate body 146 can be substantially in a trapezoidal shape, and the upper base of the trapezoidal shape is used to form the second smoke suction port 142, and the lower base of the trapezoidal shape is connected to the first shell 11. Optionally, the fifth plate body 145 and the sixth plate body 146 can also be substantially in a parallelogram or other arbitrary shape, and the embodiments of the present application do not make any limitation in this regard.

[0049] The shell body of the first shell 11 can further include a side plate 116 connected between the first plate body 114 and the second plate body 115, and the first plate body 114, the second plate body 115, and the side plate 116 can collectively enclose the first inner cavity 111.

[0050] Optionally, in an exemplary scheme, please refer to Figure 4The outer contour line of the inner plate surface of the first plate body 114 can have a fifth edge line 1141 and a sixth edge line 1142 distributed opposite to each other along the first direction x, and the projection pattern of the outer contour line of the inner plate surface of the second plate body 115 on the inner plate surface of the first plate body 114 can have a seventh edge line 1151 and an eighth edge line 1152 distributed opposite to each other along the first direction x, the seventh edge line 1151 can be located between the fifth edge line 1141 and the sixth edge line 1142, and the eighth edge line 1152 can be located between the fifth edge line 1141 and the sixth edge line 1142. The first direction x is perpendicular to the rotation axis 1212 of the fan assembly 12 and parallel to the cooktop plane p. In this way, the width dimension of the first inner cavity 111 of the first shell 11 along the first direction x at the first plate body 114 is smaller than the dimension along the first direction x at the second plate body 115, which facilitates the airflow circulation in the range hood 1.

[0051] Optionally, along the first direction x, the distance between the seventh edge line 1151 and the eighth edge line 1152 can be at least 60 mm smaller than the distance between the fifth edge line 1141 and the sixth edge line 1142.

[0052] Optionally, referring to Figure 5 The side plate 116 can include a first side plate 1161 and a second side plate 1162 spaced apart along the first direction x. The included angle between the first side plate 1161 and the first plate body 114 can be greater than or equal to 30° and less than 90°. The included angle between the second side plate 1162 and the first plate body 114 can be greater than or equal to 30° and less than 90°.

[0053] In another exemplary scheme, referring to Figure 6 The range hood 1 can include at least one second flow guide plate 117 located in the first inner cavity 111 of the first shell 11, and the second flow guide plate 117 is located on one side of the fan assembly 12 along the first direction x. One end of the second flow guide plate 117 is connected to an edge of the first plate body 114 located on one side of the fan assembly 12 along the first direction x, and the other end extends towards the direction close to the second plate body 115; and in the direction from the first plate body 114 to the second plate body 115, the distance between the second flow guide plate 117 and the rotation axis 1212 gradually decreases.

[0054] When the second flow guide plate 117 is provided in the range hood 1, the structure adjustment of the first inner cavity 111 can be achieved by means of the second flow guide plate 117, and the diversification of the structure design of the side plate 116 can be achieved. For example, the width dimension of the first inner cavity 111 of the first shell 11 along the first direction x at the first plate body 114 can be smaller than the dimension along the first direction x at the second plate body 115 by means of the second flow guide plate 117.

[0055] Optionally, the number of the second guide plates 117 can be two, and the two second guide plates 117 are distributed on opposite sides of the fan assembly 12 along the first direction x, so that the air inlet amount and the oil fume absorption effect on both sides of the fan assembly 12 are substantially balanced.

[0056] Optionally, the fan assembly 12 includes a front plate 122 and a back plate 123 arranged opposite to the front plate 122, and the air inlet 121 is arranged on the front plate 122. Optionally, the rotation axis 1212 of the fan assembly 12 can be parallel to the central axis y of the first shell 11. Preferably, the distance between the rotation axis 1212 of the fan assembly 12 and the central axis y of the first shell 11 is less than or equal to 100 mm. Controlling the distance between the rotation axis 1212 and the central axis y within 100 mm can reduce the difference in smoke absorption on the left and right sides of the fan assembly 12 while meeting the installation requirements.

[0057] To improve the safety performance of the fan assembly 12, the fan assembly 12 can further include a safety net 124, which can be arranged at the front plate 122 and cover the air inlet 121. Optionally, the middle part of the safety net 124 can be convexly arranged away from the front plate 122.

[0058] It should be noted that the space distance between the safety net 124 on the fan assembly 12 and the first shell 11 and the first cover plate 13 in any state can be greater than or equal to 2 mm to ensure the normal operation of the range hood 1 and avoid scratching. Optionally, referring to Figure 7 , the range hood 1 can further include a second mesh plate 119 arranged at the second smoke suction port 142, and the second mesh plate 119 can be connected to the second shell 14. Optionally, the space distance between the safety net 124 on the fan assembly 12 and the second mesh plate 119 can be greater than or equal to 2 mm to ensure the normal operation of the range hood 1 and avoid scratching.

[0059] Optionally, referring to Figure 8 , the range hood 1 further includes a check valve 118 located at the top of the first shell 11. Specifically, the check valve 118 can have a connecting plate 1181 connected to the first shell 11, the connecting plate 1181 having a ninth edge line 1182 and a tenth edge line 1183 distributed opposite to each other along the first direction x, and the distance h2 between the ninth edge line 1182 and the central axis y is less than or equal to 250 mm; preferably less than or equal to 200 mm. Optionally, the distance between the tenth edge line 1183 and the central axis y is less than or equal to 250 mm; preferably less than or equal to 200 mm. In this way, the whole machine device can be adapted to the existing cabinet structure, and users who replace the European style do not need to adjust the cabinet, and the adaptability is stronger.

[0060] Please refer to Figure 9The range hood 1 can further include a first transmission member 151 and a driving member 152, the first transmission member 151 connecting the driving member 152 and the first cover plate 13, and being configured to drive the first cover plate 13 to switch between the first position and the second position under the driving of the driving member 152.

[0061] Optionally, the first transmission member 151 can be configured to drive the first cover plate 13 to rotate relative to the opening end surface of the second smoke inlet 142 to close or open the second smoke inlet 142 when the driving member 152 is driven to move. That is, the first cover plate 13 is flipped to open and close the second smoke inlet 142, and this scheme can realize the miniaturized design of the range hood 1 compared with the scheme that the first cover plate 13 is translated along a direction perpendicular to the opening central axis of the second smoke inlet 142 to open and close the second smoke inlet 142. For example, the inner plate surface of the first cover plate 13 has a second edge line 132 away from the cooktop plane p, and the first cover plate 13 can rotate about the second edge line 132 as the rotation axis to open and close the second smoke inlet 142.

[0062] It should be noted that the first transmission member 151 can be any structure that can realize the flipping opening of the first cover plate 13. For example, the first transmission member 151 can be a six-bar linkage mechanism to drive the rotation of the first cover plate 13. Specifically, please refer to Figure 10 The range hood 1 can include a first structure 161 and a second structure 162 installed in the first housing 11 and spaced apart. The first transmission member 151 can include a first connecting rod 1511, a second connecting rod 1512, a third connecting rod 1513, a fourth connecting rod 1514, and a fifth connecting rod 1515. The first connecting rod 1511 has a first connecting portion 1531 and a second connecting portion 1532 spaced apart. One end of the second connecting rod 1512 is rotationally connected to the first connecting portion 1531 of the first connecting rod 1511, and the other end is rotationally connected to one end of the third connecting rod 1513. The other end of the third connecting rod 1513 is rotationally connected to the first structure 161. One end of the fourth connecting rod 1514 is rotationally connected to the second connecting portion 1532 of the first connecting rod 1511, and the other end is rotationally connected to one end of the fifth connecting rod 1515. The other end of the fifth connecting rod 1515 is rotationally connected to the second structure 162, and the middle portion of the fifth connecting rod 1515 is further rotationally connected to the middle portion of the second connecting rod 1512.

[0063] The first connecting rod 1511 is connected to the first cover plate 13, and the third connecting rod 1513 is connected to the first structure 161 at the driving member 152 or the fifth connecting rod 1515 is connected to the second structure 162 at the driving member 152, so that the first cover plate 13 is switched between the first position and the second position under the driving of the driving member 152.

[0064] If the third connecting rod 1513 is connected to the first structure part 161 and the driving member 152, for example, when the first cover plate 13 is switched from the first position to the second position, under the driving of the driving member 152, the third connecting rod 1513 will not only drive the second connecting rod 1512 to move away from one end of the third connecting rod 1513 to the outside of the first smoke inlet 114, but also drive the fourth connecting rod 1514 to move away from one end of the fifth connecting rod 1515 to the outside of the first smoke inlet 114. That is, when the first cover plate 13 is switched from the first position to the second position, under the driving of the driving member 152, the first connecting part 1531 and the second connecting part 1532 of the first connecting rod 1511 connected to the first cover plate 13 will move towards the outside of the first smoke inlet 114, so that the first cover plate 13 can not be easily hindered by the first shell 11 during the outward movement, that is, even if the inner plate surface of the first cover plate 13 is attached to the opening end surface of the first smoke inlet 114 in the first position, the first cover plate 13 can be smoothly opened, and the structural compactness of the range hood 1 can be improved.

[0065] The first connecting rod 1511 connected to the first cover plate 13 can be that the first connecting rod 1511 is attached to the first cover plate 13 and connected by screws or the like. The third connecting rod 1513 connected to the first structure part 161 and the driving member 152 or the fifth connecting rod 1515 connected to the second structure part 162 and the driving member 152 can be that any one of the third connecting rod 1513 connected to the first structure part 161 and the fifth connecting rod 1515 connected to the second structure part 162 is fixedly connected to the output shaft of the driving member 152 to be able to rotate under the driving of the output shaft of the driving member 152. In the embodiment of the present application, the third connecting rod 1513 connected to the first structure part 161 is fixedly connected to the output shaft of the driving member 152.

[0066] Optionally, the fifth connecting rod 1515 has a first surface 15151 facing the second connecting rod 1512, and the second connecting rod 1512 and the fourth connecting rod 1514 can be located on one side of the first surface 15151 of the fifth connecting rod 1515. Optionally, the second connecting rod 1512 has a second surface (not shown in the figure) facing the fifth connecting rod 1515, and the fifth connecting rod 1515 and the third connecting rod 1513 can be located on one side of the second surface of the second connecting rod 1512. So that the second connecting rod 1512, the third connecting rod 1513, the fourth connecting rod 1514 and the fifth connecting rod 1515 are more compact in the direction perpendicular to the first surface 15151, which is beneficial to the miniaturization of the first transmission member 151.

[0067] Optionally, in combination with Figure 10 and Figure 11The first transmission member 151 can further include a baffle 1516, which can be located on the side of the second surface of the second connecting rod 1512 and connected to the first connecting rod 1511. By arranging the fifth connecting rod 1515 and the baffle 1516 on one side, when the range hood 1 is assembled, the side where the baffle 1516 and the fifth connecting rod 1515 are located can be arranged towards the outside of the range hood 1, so that the second connecting rod 1512 and the fourth connecting rod 1514 are substantially located on the inside and can be shielded by the baffle 1516, and the structure is more beautiful.

[0068] Optionally, the thickness of the fifth connecting rod 1515 and the thickness of the baffle 1516 can be substantially equal. The thickness of the second connecting rod 1512 and the thickness of the fourth connecting rod 1514 can be substantially equal, so that the thickness dimension of the first transmission member 151 is relatively thin and the structure is more neat and compact. The thickness of the fifth connecting rod 1515 can be the thickness dimension in the direction perpendicular to the first surface 15151, and the thickness of the baffle 1516, the thickness of the second connecting rod 1512, the thickness of the third connecting rod 1513 and the thickness of the fourth connecting rod 1514 can be the thickness dimension of each in the direction perpendicular to the first surface 15151.

[0069] Further optionally, the baffle 1516 can be provided with a first opening 15161, and one end of the fifth connecting rod 1515 rotatingly connected to the fourth connecting rod 1514 extends to the first opening 15161. By extending the fifth connecting rod 1515 to the first opening 15161 of the baffle 1516, the gap between the baffle 1516 and the fifth connecting rod 1515 when the first cover plate 13 is opened can be reduced, the pinch hand phenomenon can be avoided, the safety of the range hood 1 can be improved, and the appearance can also be beautiful.

[0070] Optionally, the first connecting portion 1531 and the second connecting portion 1532 can only be part of the structure of the first connecting rod 1511. Specifically, part of the structure of the first connecting rod 1511 can be defined as the first connecting portion 1531, and part of the structure can be defined as the second connecting portion 1532, without the need to additionally provide the first connecting portion 1531 and the second connecting portion 1532, so as to simplify the structure of the range hood 1. Of course, the first connecting portion 1531 and / or the second connecting portion 1532 can also be structures different from the first connecting rod 1511, and the embodiments of the present application do not limit this.

[0071] Optionally, the first structure portion 161 and the second structure portion 162 can be directly mounted on the first shell 11 to be fixed in the first shell 11. At least one of the first structure portion 161 and the second structure portion 162 can also be mounted on the mounting bracket 16 in the first shell 11, and the driving member 152 can also be mounted on the mounting bracket 16.

[0072] Optionally, the first structure part 161 and the second structure part 162 can be only partial structures in the mounting frame 16. Specifically, the partial structure of the mounting frame 16 can be defined as the first structure part 161, and the partial structure can be defined as the second structure part 162, without additionally setting the first structure part 161 and the second structure part 162, so as to simplify the structure of the range hood 1. Of course, the first structure part 161 and / or the second structure part 162 can also be structures different from the mounting frame 16, and the embodiments of the present application do not make any limitation in this regard.

[0073] Optionally, a limiting structure 163 can be arranged on the mounting frame 16, and the limiting structure 163 can be used to limit the movement of the first cover plate 13 to the second position, so that the first cover plate 13 is more accurately opened to the second position.

[0074] Optionally, the limiting structure 163 can be a folded edge. That is, the limiting structure 163 is formed by folding part of the mounting frame 16. The limiting structure 163 can be arranged corresponding to the third connecting rod 1513 and / or the fifth connecting rod 1515. Optionally, a clamping protrusion can be arranged on the third connecting rod 1513 and / or the fifth connecting rod 1515, and when the clamping protrusion moves to abut against the limiting structure 163, it indicates that the first cover plate 13 moves to the second position. In the embodiments of the present application, the limiting structure 163 is arranged corresponding to the third connecting rod 1513, and the third connecting rod 1513 is provided with a clamping protrusion 15131, and when the clamping protrusion 15131 moves to abut against the limiting structure 163, it indicates that the first cover plate 13 moves to the second position.

[0075] Optionally, in the edge of the inner plate surface of the first cover plate 13, when the part of the edge close to the cooking table plane p contacts the opening end surface of the first smoke suction port 114, it indicates that the first cover plate 13 moves to the first position.

[0076] Optionally, the mounting frame 16 can include a mounting plate 164 and a support 165, the mounting plate 164 is arranged corresponding to the second smoke suction port 142, and the mounting plate 164 can be substantially a plate structure parallel to the opening central axis of the second smoke suction port 142, and the driving member 152, the first structure part 161 and the second structure part 162 are arranged on the plate surface of the mounting plate 164.

[0077] Further optionally, the mounting plate 164 can have a first plate surface 1641 and a second plate surface 1642 distributed in opposite directions, the first structure part 161, the second structure part 162 and the first transmission member 151 can be located on one side of the first plate surface 1641 of the mounting plate 164. The driving member 152 and the support 165 can be located on one side of the second plate surface 1642 of the mounting plate 164.

[0078] The support 165 can include a first part 1651 arranged corresponding to the second smoking port 142, and a second part 1652 connected to the first part 1651, the first part 1651 is connected to the mounting plate 164, and the second part 1652 can be bent to form a bending part 1653 in a direction away from the second plate surface 1642 and approximately towards the first plate surface 1641 near the part of the first plate body 114. At this time, the bending part 1653 can be connected to the first plate body 114.

[0079] Optionally, the driving member 152 can include a motor 1521, and an output shaft of the driving member 152 can correspond to an output shaft of the motor 1521. The motor 1521 has a first state and a second state, in the first state, the motor 1521 drives the first transmission member 151 to move so that the first cover plate 13 is located at the first position, in the second state, 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, a rotation stroke of the output shaft of the motor 1521 can 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 switching from the first position to the second position, that is, affect the opening degree of the first cover plate 13 to the first smoking port 112. Reasonably limiting the rotation stroke of the output shaft of the motor 1521 can ensure good smoking effect at the first smoking port 112 on the premise of reducing the power consumption of the motor 1521.

[0080] Optionally, when the first cover plate 13 is switched from the first position to the second position, the rotation stroke of the first cover plate 13 around the second edge line 132 can be greater than or equal to 65° and less than or equal to 75°.

[0081] Optionally, referring again to Figure 9 , the number of the first transmission members 151 can be two, the inner plate surface of the first cover plate 13 has a first edge 133 and a second edge 134 distributed oppositely, 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.

[0082] The driving member 152 can be arranged corresponding to and connected to one of the first transmission members 151, and the two first transmission members 151 are transmissionally connected through a transmission rod 154. By arranging the first transmission member 151 on both sides of the first cover plate 13, the stability of the first cover plate 13 during movement can be improved.

[0083] The two ends of the transmission rod 154 can be respectively installed on the two first transmission members 151 to realize the synchronous movement of the two first transmission members 151. The two first transmission members 151 are the same in structure, and the two first transmission members 151 can be arranged in a mirror image. Optionally, when the number of the first transmission members 151 is two, the number of the mounting frames 16 can also be two, and each mounting frame 16 corresponds to one first transmission member 151.

[0084] The transmission rod 154 is located in the first inner cavity 111. Optionally, the transmission rod 154 can be arranged corresponding to the first cover plate 13. Optionally, the transmission rod 154 can be located on the side of the fan assembly 12 close to the first cover plate 13, or the transmission rod 154 can be located on the side of the fan assembly 12 away from the first cover plate 13. The design form of the transmission rod 154 has diversity, which can be flexibly adjusted according to specific needs.

[0085] It should be noted that the first smoke suction port 112 can not only be opened to suck in the oil fume during cooking, but also be opened to purify the indoor air when not cooking. Of course, a ventilation port (not shown in the figure) can also be additionally arranged on the first shell 11 to purify the indoor air, and the present application embodiment does not make any limitation thereon. Optionally, when the ventilation port is arranged on the first shell 11, the range hood 1 can be periodically automatically operated at a given gear under the pre-setting of the user to improve the air quality of the kitchen environment. Optionally, the total ventilation area of the ventilation port should be less than or equal to 10% of the total ventilation area of other ventilation under the normal operation state of the entire range hood 1. The total ventilation area of other ventilation under the normal operation state of the entire range hood 1 can include the sum of the ventilation areas of the first smoke suction port 112 and the second smoke suction port 142. The ventilation port can include a plurality of small holes arranged at intervals to improve the safety performance of the range hood 1.

[0086] Please refer again to Figures 1 to 8 In an exemplary scheme, the front plate 122 of the fan assembly 12 is arranged close to the first plate body 114 of the first shell 11. In this way, the oil fume can be timely introduced into the air inlet 121 of the fan assembly 12 after entering the first inner cavity 111 through the first smoke suction port 112 on the first plate body 114 and entering the second inner cavity 141 through the second smoke suction port 142, and the oil fume absorption speed is fast and the absorption efficiency is high; and the structure of the range hood 1 can be made thinner. Optionally, the distance between the front plate 122 and the first plate body 114 is greater than or equal to 20 mm and less than or equal to 50 mm. Optionally, the distance between the rear plate 123 and the second plate body 115 is greater than or equal to 15 mm and less than or equal to 40 mm.

[0087] In another exemplary scheme, the front plate 122 on the fan assembly 12 is arranged close to the second plate body 115 of the first housing 11. This scheme can reduce the noise of the range hood 1 during use and improve the user experience because the front plate 122 provided with the air inlet 121 is arranged opposite to the first plate body 114 provided with the first smoke inlet 112. Optionally, the spacing between the rear plate 123 and the first plate body 114 is greater than or equal to 25 mm and less than or equal to 60 mm; and / or, the spacing between the front plate 122 and the second plate body 115 is greater than or equal to 10 mm and less than or equal to 30 mm.

[0088] The range hood 1 can further include an oil cup 19 connected to the bottom of the first housing 11.

[0089] The above description is only the preferred embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made under the concept of the present application, using the content of the present application specification and drawings, or directly / indirectly applied in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A range hood characterized by, Comprising: a first housing including a housing body and a first plate body connected to the housing body, the first plate body being located on a first side of the first housing, the housing body and the first plate body enclosing a first inner cavity, the first plate body being provided with a first smoke inlet communicating with the first inner cavity; and a second housing connected to the first side of the first housing and protruding from the first plate body of the first housing, the second housing being located on a side of the first plate body away from a cooktop plane during use, the second housing being formed with a second inner cavity communicating with the first inner cavity and a second smoke inlet communicating with the second inner cavity, the second smoke inlet being located on a side of the second housing away from the first housing; a fan assembly located in the first inner cavity, the first plate body and the second housing being located on the same side of the fan assembly along the direction of the rotation axis of the fan assembly. The fan assembly has an air inlet, the projection of the contour line of the air inlet on a first plane encloses a first area, the projection of the second smoke inlet on the first plane encloses 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.

2. The range hood of claim 1, wherein, Further comprising:

3. The range hood according to claim 1, wherein a first cover plate corresponding to the second smoke inlet, the first cover plate having a first position and a second position, the first cover plate closing the second smoke inlet in the first position; the first cover plate opens the second smoke inlet in the second position. In the second position, the distance between the first edge line of the first cover plate close to the cooktop plane and the second plane is greater than the distance between the second edge line of the first cover plate away from the cooktop plane and the second plane; 4. The range hood of claim 3, wherein the second plane is perpendicular to the central axis of the opening of the second smoke inlet and is located on the side of the first cover plate close to the second smoke inlet.

5. The range hood of claim 4, wherein in the second position, the angle between the first cover plate and the second plane is greater than or equal to 50° and less than or equal to 90°; and / or the housing body of the first housing includes a second plate body opposite to the first plate body, in the direction perpendicular to the second plate body, the distance between the first edge line of the first cover plate and the second plate body in the second position is greater than or equal to 350mm. The range hood includes a first working mode and a second working mode, the first smoke inlet is open and the second smoke inlet is closed in the first working mode, and the first smoke inlet is open and the second smoke inlet is open in the second working mode.

6. The range hood according to claim 1, wherein The fan assembly has an air inlet, the projection of the contour line of the air inlet on a first plane encloses a first area, the projection of the first smoke inlet on the first plane encloses a third area, and the third area is located on the side of the first area close to the cooktop plane during use of the range hood.

7. The range hood according to claim 1, wherein The fan assembly includes a front plate facing the first plate body, the front plate is spaced apart from the first plate body, and the air inlet is provided on the front plate.

8. The range hood of claim 7, wherein, Further comprising:

9. The range hood of claim 7, wherein, ​ The first flow guide plate is located in the first inner cavity and corresponds to the first smoke inlet. When in use, the distance between a third edge line of the first flow guide plate close to the cooking table plane and the first plate body is smaller than the distance between a fourth edge line of the first flow guide plate away from the cooking table plane and the first plate body.

10. The range hood according to claim 9, wherein, The range hood further comprises a first mesh plate located in the first inner cavity and between the first flow guide plate and the fan assembly, the first mesh plate connecting the fourth edge line of the first flow guide plate and the first plate body; and / or The fan assembly comprises a front plate facing the first plate body, the front plate being provided with the air inlet, and the fourth edge line of the first flow guide plate being located on a side of the front plate away from the first plate body.

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