Range hood

Abstract

The utility model relates to a range hood, which comprises a fan frame, a plurality of fan blades, a plurality of fan blades and a plurality of fan blades, the fan frame comprises a left plate, a front plate, a right plate, a rear plate and an air outlet plate positioned at the top, and the left plate, the front plate and the right plate are integrally formed to form a combined plate body of the fan frame; the centrifugal fan is arranged in the fan frame; the exhaust fume collecting hood is located below the fan frame, and the top of the exhaust fume collecting hood is provided with a mounting opening used for being connected with the fan frame; the rear side of the air outlet plate is connected with the rear plate, supporting pieces extending upwards are further arranged on the front portions of the left side and the right side of the installation opening, the two supporting pieces are supported on the front side of the bottom of the air outlet plate, and the combined plate body is connected with the rear plate and the air outlet plate and located on the peripheries of the two supporting pieces. The centrifugal fan frame has the advantages that the appearance consistency of the fan frame can be improved, the combined plate body of the fan frame can be conveniently disassembled, and the centrifugal fan is conveniently maintained and cleaned.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen appliance technical field especially, relates to a range hood. BACKGROUND

[0002] The range hood is a kind of kitchen appliance that purifies kitchen environment.The range hood generally includes casing and centrifugal fan arranged in the casing, and the casing generally includes fan frame and smoke collecting hood arranged at the bottom of the fan frame, and the inner cavity of the fan frame is communicated with the inner cavity of the smoke collecting hood.Air inlet is formed on the front side wall of the smoke collecting hood, and external smoke can enter the smoke collecting hood through the air inlet.The centrifugal fan is arranged in the fan frame, and negative pressure is generated when the centrifugal fan operates, so that external oil fume can be sucked into the smoke collecting hood through the air inlet.The fan frame of the existing range hood has many exposed screw fixing holes, which seriously affects the overall appearance of the range hood, so an additional fan cover or decorative cover is needed to wrap the fan frame and other components again, which increases the overall cost and installation cost of the range hood, and the additional fan cover or decorative cover further reduces the front-rear dimension available for the fan of the product, affecting the arrangement of the fan and the air inlet passage, resulting in increased resistance and noise.

[0003] Therefore, the Chinese utility model patent application with the application number CN202121609391.9 (authorized publication number CN217002414U) discloses a fan frame of a range hood and a range hood applying the fan frame, and the fan frame includes a front plate, a rear plate, a left plate, a right plate and a top plate, the top plate and the rear plate are integrally formed to form a first part of the fan frame, the left plate, the front plate and the right plate are integrally formed to form a second part of the fan frame, and the connection between the first part and the second part is located on the top plate.The structural design of the fan frame makes the common parts of the fan frame invisible to the user, and there is no need to configure a separate fan cover or decorative cover, which is a purely decorative cover component, thereby reducing the cost and releasing space.

[0004] However, the fan frame of the range hood in the above patent application still has some deficiencies: the centrifugal fan is fixedly installed on the inner wall of the fan frame, and when cleaning the centrifugal fan of the range hood, the fan frame is surrounded by the three front sides of the volute, so the fan system cannot be repaired or cleaned in the hanging state, or the smoke collecting hood below the range hood needs to be removed first, which brings great difficulty to the repair and after-sales work.

[0005] Therefore, the existing range hood still needs to be further improved. UTILITY MODEL CONTENTS

[0006] The utility model solves the technical problem in the prior art, and provides a range hood that can improve the appearance consistency of the fan frame and facilitate the repair and cleaning of the centrifugal fan.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a range hood, comprising:

[0008] The fan frame includes a left plate, a front plate, a right plate, a rear plate, and an air outlet plate located at the top. The left plate, the front plate, and the right plate are integrally formed to constitute the combined plate body of the fan frame.

[0009] A centrifugal fan is installed inside the fan frame;

[0010] A smoke hood is located below the fan frame, and the top of the smoke hood has a mounting port for connecting with the fan frame;

[0011] The rear side of the air outlet plate is connected to the rear plate. The front of the left and right sides of the mounting port is also provided with upwardly extending support members. The two support members are supported on the bottom front side of the air outlet plate. The combined plate is connected to the rear plate and the air outlet plate and is located around the two support members.

[0012] The left, front, and right panels of the fan frame are integrally molded to form the combined panel body. This eliminates the need for screws or holes in common parts of the fan frame, ensuring the aesthetics of the range hood and reducing costs. When the range hood is in wall-mounted mode, the connection between the exhaust panel, rear fan panel, and fan system strengthens the overall rigidity of that area. Supports between the smoke hood and exhaust panel effectively secure the smoke hood, and the combined panel body can be easily removed for maintenance or cleaning of the centrifugal fan, improving the user experience.

[0013] In order to achieve quick installation and positioning of the air outlet panel, the outer periphery of the air outlet panel has a downward folding limiting flange, and the tops of the two supporting members are supported at the bottom of the main body of the air outlet panel and limited to the inside of the limiting flange.

[0014] To ensure the strength of the support, the support is plate-shaped and has reinforcing ribs arranged along its length.

[0015] To simplify the connection and fit between the rear panel and the air outlet panel, the upper part of the rear panel also has a forward-protruding support protrusion, on which the rear side of the air outlet panel rests. The support protrusion on the rear panel can be formed by partial stamping of the main body of the rear panel.

[0016] As an improvement, the centrifugal fan is connected to the rear plate via a connecting bracket, and the air outlet of the centrifugal fan is connected to the air outlet plate.

[0017] To ensure the secure installation of the centrifugal fan, there are two connecting brackets, and the lower part of the main body of the centrifugal fan is connected to the rear plate through the two connecting brackets.

[0018] In order to connect and fix the combined panel to the air outlet panel, the top inner side of the combined panel has an inwardly extending limiting edge, which rests above the outer perimeter of the air outlet panel and is connected by fasteners.

[0019] To simplify the processing of the limiting edge of the composite plate and reduce processing costs, the limiting edge of the composite plate is formed by bending the top edge of the composite plate downwards and then inwards.

[0020] In order to achieve quick-release connection between the combined panel and the rear panel and improve the installation efficiency of the fan frame, the two rear edges of the combined panel have buckles extending in opposite directions, and the left and right sides of the rear panel have connecting flanges extending forward. The two connecting flanges are provided with slots for the buckles of the combined panel to be engaged.

[0021] To ensure a secure connection between the combined panel and the rear panel, each of the two rear edges of the combined panel has at least two buckles spaced vertically apart, and each of the two connecting flanges of the rear panel also has at least two corresponding slots.

[0022] Compared with existing technologies, the advantages of this utility model are as follows: The left, front, and right panels of the fan frame are integrally formed to constitute the combined panel of the fan frame. This makes it impossible for users to see screws or holes in common parts of the fan frame, eliminating the need for a separate fan cover or decorative cover, thus ensuring the aesthetics of the range hood and reducing costs. When the range hood is in wall-mounted mode, the overall rigidity of the area is strengthened after the air outlet plate and the rear fan plate are connected to the fan system. By setting a support between the smoke collection hood and the air outlet plate, the smoke collection hood can be well fixed, and the combined panel can be easily removed for maintenance or cleaning of the centrifugal fan, improving the user experience. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the range hood according to an embodiment of the present utility model;

[0024] Figure 2 This is an exploded view of the range hood according to an embodiment of the present utility model (the combined panels are in a separated state);

[0025] Figure 3 This is a diagram showing the state of the combined panel and the rear panel of the range hood in this embodiment of the present invention before assembly;

[0026] Figure 4This is a vertical sectional perspective view of the range hood of this utility model, cut along the left-right direction;

[0027] Figure 5 An exploded view of the range hood of this utility model embodiment, omitting the combined panel (the air outlet panel is in a separated state);

[0028] Figure 6 This is a three-dimensional structural diagram of the combined plate body of the fan frame of the range hood according to an embodiment of the present utility model. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0031] Figures 1-6 This illustration shows a preferred embodiment of the range hood of the present invention. The range hood includes a housing and a centrifugal fan 16 disposed within the housing. The housing generally includes a fan frame 1 and a smoke collection hood 2 disposed at the bottom of the fan frame 1. The top of the smoke collection hood 2 has an installation port 21 for connecting with the fan frame 1, and the inner cavity of the fan frame 1 communicates with the inner cavity of the smoke collection hood 2. An air inlet is provided at the bottom of the smoke collection hood 2, through which external smoke can enter the smoke collection hood 2. The centrifugal fan 16 is disposed within the fan frame 1. When the centrifugal fan 16 operates, it generates negative pressure, and external fumes can be drawn into the smoke collection hood 2 through the air inlet. An oil cup 4 is provided at the rear bottom of the smoke collection hood 2. The oil cup 4 is a long strip extending laterally, used to collect oil stains flowing down from the smoke collection hood 2.

[0032] See Figure 2 and Figure 5The fan frame 1 includes a left plate 11, a front plate 12, a right plate 13, a rear plate 14, and an air outlet plate 15 located at the top. The left plate 11, front plate 12, and right plate 13 are integrally formed to constitute the combined plate body 10 of the fan frame 1, while the rear plate 14 and the air outlet plate 15 can be designed as an integral unit or as separate units. A centrifugal fan 16 is housed within the fan frame 1. Specifically, the rear cover plate of the centrifugal fan 16's volute is provided with a connecting bracket 161, which connects to the rear plate 14 of the fan frame 1. The air outlet at the top of the volute connects to the corresponding connection port on the air outlet plate 15. There are two connecting brackets 161, and the lower part of the main body of the centrifugal fan 16's volute is connected to the rear plate 14 through these two connecting brackets 161, thereby ensuring the secure installation of the centrifugal fan 16.

[0033] The upper part of the rear plate 14 of the fan frame 1 also has a forward-protruding support protrusion 142, with two support protrusions 142 arranged at left and right intervals. The rear side of the air outlet plate 15 rests on the support protrusion 142. Specifically, the outer periphery of the air outlet plate 15 has a downward-folded limiting flange 151, and the lower edge of the limiting flange 151 rests on the support protrusion 142. In order to facilitate processing and ensure the strength at the location of the support protrusion 142 on the rear plate 14, the support protrusion 142 on the rear plate 14 can be formed by partial stamping of the main body of the rear plate 14. The front of the mounting opening 21 on both the left and right sides of the smoke hood 2 is also provided with upwardly extending support members 3. Preferably, the support members 3 adopt a plate-like structure and have reinforcing ribs 31 arranged along their length to ensure the strength of the support members 3. The bottoms of the two support members 3 are connected to the mounting opening 21 of the smoke hood 2 by fasteners. The tops of the two support members 3 are supported on the bottom front side of the main body of the air outlet plate 15 and are limited to the inner side of the limiting flange 151 of the air outlet plate 15. The combined plate 10 is connected to the rear plate 14 and the air outlet plate 15 and is located on the periphery of the two support members 3.

[0034] See Figure 6 The top inner side of the combined plate 10 has an inwardly extending limiting edge 101. That is, the left plate 11, front plate 12, and right plate 13 of the combined plate 10 all have the aforementioned limiting edge 101. In order to simplify the processing of the limiting edge 101 of the combined plate 10 and reduce the processing cost, the limiting edge 101 of the combined plate 10 in this embodiment is formed by bending the top edge of the combined plate 10 downward and then bending it inward. The limiting edge 101 of the combined plate 10 rests above the outer periphery of the air outlet plate 15 and can be connected and fixed by fasteners, such as screws.

[0035] The two rear edges of the combined panel 10 (i.e., the rear edges of the left panel 11 and the right panel 13) have buckles 102 extending in opposite directions, while the left and right sides of the rear panel 14 have forward-extending connecting flanges 141. The two connecting flanges 141 have slots 1410 for the buckles 102 of the combined panel 10 to engage. To ensure a secure connection between the combined panel 10 and the rear panel 14, each rear edge of the combined panel 10 has at least two buckles 102 spaced vertically apart, and the connecting flanges 141 of the rear panel 14 also have at least two corresponding slots 1410. The snap-fit ​​102 and slot 1410 connection structure between the combined panel 10 and the rear panel 14 enables quick-release connection between the combined panel 10 and the rear panel 14, improving the installation efficiency of the fan frame 1. During installation, simply push the three-sided surrounding combined panel 10 backward along the smoke hood 2, insert the snap-fit ​​102 into the slot 1410 of the rear panel 14, and then fully engage the snap-fit ​​102 into the slot 1410. After the combined panel 10 is lowered into place, the limiting edge 101 of the combined panel 10 rests on the edge of the air outlet plate 15, and the mounting screws secure the two together, thus completing the installation of the three-sided surrounding fan frame 1. Disassembly is performed by reversing the operation.

[0036] The left plate 11, front plate 12, and right plate 13 of the fan frame 1 are integrally formed to constitute the combined plate body 10 of the fan frame 1. This makes it impossible for users to see screws or holes in common parts of the fan frame 1, eliminating the need for a separate fan cover or decorative cover, thus ensuring the aesthetics of the range hood and reducing costs. When the range hood is in wall-mounted mode, the overall rigidity of the area is strengthened after the air outlet plate 15 and the rear fan plate 14 are connected to the fan system. By setting a support member 3 between the smoke collection hood 2 and the air outlet plate 15, the smoke collection hood 2 can be well fixed. The combined plate body 10 can be easily removed for maintenance or cleaning of the centrifugal fan 16, improving the user experience.

Claims

1. A range hood, comprising: The fan frame (1) includes a left plate (11), a front plate (12), a right plate (13), a rear plate (14) and an air outlet plate (15) located at the top. The left plate (11), the front plate (12) and the right plate (13) are integrally formed to form the combined plate body (10) of the fan frame (1). Centrifugal fan (16) is installed inside the fan frame (1); A smoke hood (2) is located below the fan frame (1), and the top of the smoke hood (2) has a mounting port (21) for connecting with the fan frame (1); The features are as follows: the rear side of the air outlet plate (15) is connected to the rear plate (14), and the front of the left and right sides of the mounting port (21) is provided with upwardly extending support members (3). The two support members (3) are supported on the bottom front side of the air outlet plate (15). The combined plate body (10) is connected to the rear plate (14) and the air outlet plate (15) and is located around the two support members (3).

2. The range hood according to claim 1, characterized in that: The air outlet plate (15) has a downwardly folded limiting flange (151) at its outer periphery. The tops of the two support members (3) are supported at the bottom of the main body of the air outlet plate (15) and limited to the inside of the limiting flange (151).

3. The range hood according to claim 1, characterized in that: The support member (3) is plate-shaped and has reinforcing ribs (31) arranged along its length.

4. The range hood according to claim 1, characterized in that: The upper part of the rear plate (14) also has a forward-protruding support protrusion (142), and the rear side of the air outlet plate (15) rests on the support protrusion (142).

5. The range hood according to claim 1, characterized in that: The centrifugal fan (16) is connected to the rear plate (14) via a connecting bracket (161), and the air outlet of the centrifugal fan (16) is connected to the air outlet plate (15).

6. The range hood according to claim 5, characterized in that: There are two connecting brackets (161), and the lower part of the main body of the centrifugal fan (16) is connected to the rear plate (14) through the two connecting brackets (161).

7. The range hood according to any one of claims 1 to 6, characterized in that: The top inner side of the combined plate (10) has an inwardly extending limiting edge (101), which rests above the outer periphery of the air outlet plate (15) and is connected by fasteners.

8. The range hood according to claim 7, characterized in that: The limiting stop (101) of the combined plate (10) is formed by bending the top edge of the combined plate (10) downward and then inward.

9. The range hood according to any one of claims 1 to 6, characterized in that: The two rear edges of the combined plate (10) have buckles (102) extending in opposite directions, and the left and right sides of the rear plate (14) have connecting flanges (141) extending forward. The two connecting flanges (141) have slots (1410) for the buckles (102) of the combined plate (10) to be inserted into.

10. The range hood according to claim 9, characterized in that: The combined plate (10) has at least two buckles (102) spaced apart at both rear edges, and the two connecting flanges (141) of the rear plate (14) also have at least two slots (1410).

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