CN218493879U - Fan shell, fan subassembly and range hood - Google Patents

Abstract

The utility model discloses a fan shell, fan subassembly and range hood belongs to household electrical appliances technical field, for solving the poor scheduling problem design of current fan shell leakproofness. The utility model discloses a fan shell includes integrated into one piece's wind channel inferior valve and wind channel epitheca respectively, encloses into the impeller installation cavity behind wind channel inferior valve and the wind channel epitheca lock, is provided with the air intake that communicates to the impeller installation cavity on one of wind channel inferior valve and the wind channel epitheca both. The utility model discloses a fan shell, a fan component, a lower air channel shell and an upper air channel shell of a range hood, which have no welding gaps in structure, have good sealing performance, and avoid the problems of oil leakage, pressure release and the like after long-time use; the air outlet is smoother, the noise is small, the oil smoke is prevented from permeating from the gap, and the service life of the whole machine is prolonged.

Description

Fan shell, fan assembly and range hood

Technical Field

The utility model relates to a household electrical appliances technical field especially relates to fan housing, including the fan subassembly of this fan housing and including the range hood of this fan subassembly.

Background

The range hood is a household appliance for sucking and collecting indoor oil smoke and discharging the oil smoke from an air duct. The range hood comprises a fan shell and an impeller arranged in the fan shell, and negative pressure is generated in the fan shell by mainly utilizing the rotation of the impeller, so that indoor oil smoke enters the fan shell.

The fan shell in the existing range hood comprises an air duct ring and front and rear plates, the air duct ring is connected with the front and rear plates in a spot welding or roll welding mode, a gap exists between a welding point and a welding point, the tightness of the fan shell is poor, and the oil smoke is easy to release in the gap. Although the sealing performance can be improved by adding the sealing structure at the gap, the production efficiency is low and the cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fan shell, fan subassembly and range hood, the leakproofness is good.

To achieve the purpose, on one hand, the utility model adopts the following technical scheme:

the fan shell comprises an air duct lower shell and an air duct upper shell which are integrally formed respectively, an impeller installation cavity is formed by the air duct lower shell and the air duct upper shell in a surrounding mode after the air duct lower shell and the air duct upper shell are buckled, and one of the air duct lower shell and the air duct upper shell is provided with an air inlet communicated to the impeller installation cavity.

In a preferred embodiment, the air duct lower casing and the air duct upper casing are formed by injection molding of bulk molding compound.

In one preferred embodiment, an air inlet ring is integrally formed at the edge of the air inlet.

In one preferred embodiment, the air inlet of the air duct lower casing extends outwards to form a lower half part of the air outlet valve, the air inlet of the air duct upper casing extends outwards to form an upper half part of the air outlet valve, and after the air duct lower casing and the air duct upper casing are buckled, the lower half part of the air outlet valve and the upper half part of the air outlet valve form the air outlet valve.

In a preferred embodiment, the bottom edges of the lower outlet valve half and the upper outlet valve half respectively form mounting flanges along radial extension.

In a preferred embodiment, an edge of one of the air duct lower shell and the air duct upper shell forms a lap edge, and after the air duct lower shell and the air duct upper shell are fastened, the lap edge abuts against an inner surface or an outer surface of an edge of the other of the air duct lower shell and the air duct upper shell.

On the other hand, the utility model adopts the following technical scheme:

the fan assembly comprises a motor and an impeller which are connected, and further comprises the fan shell, wherein the motor and the impeller are arranged in the impeller installation cavity.

On the other hand, the utility model adopts the following technical scheme:

the range hood comprises a case main body and the fan assembly, wherein the fan assembly is arranged in the case main body.

In a preferred embodiment, a first guide member is disposed on at least one of the lower air duct shell and the upper air duct shell, and a second guide member adapted to the first guide member is disposed on an inner wall surface of the chassis main body.

In a preferred embodiment, a junction box is integrally formed on the outer side of the case main body, a connecting column is arranged on the case main body and in the junction box, and the power supply board is fixed on the connecting column through a connecting piece.

In one preferred embodiment, a side surface of the junction box is provided with a mounting port for the power panel to enter and exit.

The utility model discloses a fan shell includes integrated into one piece's wind channel inferior valve and wind channel epitheca respectively, and wind channel inferior valve and wind channel epitheca do not have the welding gap in the structure separately, and sealing performance is good, appears oil leak, pressure release scheduling problem after avoiding using for a long time.

The utility model discloses a fan subassembly includes foretell fan housing, the utility model discloses a range hood includes foretell fan subassembly, and the leakproofness is good, and the air-out is more smooth and easy, and the noise is little, avoids the oil smoke to permeate from the gap, prolongs the life of complete machine.

Drawings

Fig. 1 is a schematic structural diagram of a range hood according to an embodiment of the present invention;

fig. 2 is a schematic view of a combination structure of a case main body and a fan assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a fan assembly according to an embodiment of the present invention;

fig. 4 is an exploded view of a fan assembly according to an embodiment of the present invention;

fig. 5 is a schematic view of a combination structure of a case main body and a junction box according to an embodiment of the present invention;

fig. 6 is an enlarged view of a portion of the structure at a in fig. 5.

In the figure:

1. an air duct lower shell; 2. an air duct upper shell; 3. an air inlet; 4. an air inlet ring; 5. a mounting flange; 6. a motor; 7. an impeller; 11. the lower half part of the air outlet valve; 12. locking the bolt; 13. an air duct bracket; 21. the upper half part of the air outlet valve; 51. mounting holes; 81. a chassis main body; 82. a junction box; 83. connecting columns; 84. a power panel; 85. a smoke collecting hood; 86. a fume collecting hood cover plate; 87. an oil receiving cup; 88. an installation port; 91. a first guide member; 92. a second guide member.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.

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

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

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

As shown in fig. 1 and fig. 2, the range hood includes a case main body 81, a smoke collecting hood 85, a smoke collecting hood cover plate 86, an oil receiving cup 87 and a fan assembly, wherein the fan assembly is arranged in the case main body 81, the case main body 81 is arranged above the smoke collecting hood 85, and the smoke collecting hood cover plate 86 covers the top of the smoke collecting hood 85, so that the appearance is attractive, and the oil and dust accumulation is avoided; an oil receiving cup 87 is provided at the lowermost portion of the fume collecting hood 85 for collecting oil drops falling down along the fume collecting hood 85.

As shown in fig. 3 and 4, the fan assembly comprises a fan housing and connected motor 6 and impeller 7. The fan shell comprises an air duct lower shell 1 and an air duct upper shell 2 which are integrally formed respectively, the air duct lower shell 1 and the air duct upper shell 2 are buckled to form an impeller installation cavity, and a motor 6 and an impeller 7 are arranged in the impeller installation cavity. One of the air duct lower shell 1 and the air duct upper shell 2 is provided with an air inlet 3 communicated to the impeller installation cavity, and in the embodiment, the air inlet 3 is arranged on the air duct upper shell 2.

When the air duct is installed, the motor 6 is fixed on the lower air duct shell 1, the impeller 7 penetrates through the motor shaft and is fixed on the motor 6, and an impeller cover cap (not shown) is screwed on the end part of the motor shaft, so that the impeller 7 is fixed. The air duct upper shell 2 is buckled on the air duct lower shell 1, and the air duct lower shell 1 and the air duct upper shell 2 are fastened together through a plurality of screw fasteners 12 arranged on the outer rings of the air duct lower shell 1 and the air duct upper shell 2.

This fan case's wind channel inferior valve 1 and wind channel epitheca 2 are integrated into one piece, do not have the welding seam, and sealing performance is good, avoids appearing oil leak, pressure release scheduling problem after long-time the use. The number of the components of the fan assembly is reduced, and the assembly efficiency is high.

The specific preparation materials and processing methods of the air duct lower shell 1 and the air duct upper shell 2 are not limited, and the air duct lower shell and the air duct upper shell can be integrally formed. Preferably, the air duct lower shell 1 and the air duct upper shell 2 are formed by injection Molding of Bulk Molding Compound (BMC), so that the processing efficiency is high, the cost is low, and the materials are easily obtained.

On the basis of the structure, the edge of the air inlet 3 is integrally formed with an air inlet ring 4. In this embodiment, air inlet circle 4 and wind channel epitheca 2 integration processing form, do not have the gap and install between the two and level, promoted the fan static pressure, can not pass from air inlet circle 4 and wind channel epitheca 2 and send out the sound of howling because of the air current, use experience better, the air inlet is more smooth and easy, and the oil extraction cigarette is more thorough.

In order to further improve the sealing performance of the fan assembly, the air inlet of the air duct lower shell 1 extends outwards to form an air outlet valve lower half part 11, and the air inlet of the air duct upper shell 2 extends outwards to form an air outlet valve upper half part 21. After the air duct lower casing 1 and the air duct upper casing 2 are buckled, the air outlet valve lower half part 11 and the air outlet valve upper half part 21 form an air outlet valve. There is not the gap between blast gate and the fan shell, and the leakproofness is good, and the air-out is more smooth and easy, and the noise is little. At the volute tongue, through arc surface transitional coupling between air outlet valve and the fan shell, the edges and corners can not be struck when the air current gets into air outlet valve from the fan shell, and the air-out is more smooth and easy, and is quieter during the use, uses to experience well.

On the basis of the above structure, at least one of the air duct lower casing 1 and the air duct upper casing 2 is provided with a first guide 91, and the inner wall surface of the casing main body 81 is provided with a second guide 92 adapted to the first guide 91. Among them, the first guide 91 is preferably a guide rib, and the second guide 92 is preferably a guide groove. During installation, the guide ribs are clamped into the guide grooves, and the fan shell is pushed upwards along the extension direction of the guide grooves. The guide way can play direction and spacing effect to the fan shell through the direction muscle, avoids the fan shell to take place to remove along the direction of perpendicular to guide way.

The bottom edges of the lower outlet valve half 11 and the upper outlet valve half 21 respectively extend outwards along the radial direction to form mounting flanges 5, and mounting holes 51 are formed in the mounting flanges 5. Among them, the mounting hole 51 is preferably a screw hole. When mounting, the fan case is pushed up until the upper surface of the mounting flange 5 abuts on the inner surface of the case main body 81, and the mounting flange 5 is fastened to the case main body 81 by screws. The mounting structure is stable, vibration/noise reduction, convenient assembly and disassembly and high assembly efficiency.

Still be provided with wind channel support 13 on wind channel inferior valve 1 and wind channel epitheca 2, fix fan housing on chassis body 81's side through wind channel support 13, avoid fan housing to take place to remove for chassis body 81 front and back direction, the installation of fan housing is more stable, can not take place violent relative motion between fan housing and the chassis body 81 during the oil extraction cigarette, vibrations are little then the noise is low, uses and experiences.

On the basis of the above structure, the edge of one of the duct lower casing 1 and the duct upper casing 2 forms a lap (not shown). After the air duct lower shell 1 and the air duct upper shell 2 are buckled, the lap edge is abutted against the edge inner surface or the outer surface of the other one of the air duct lower shell 1 and the air duct upper shell 2. Namely, the joint of the air duct lower shell 1 and the air duct upper shell 2 has a section of overlapping, the sealing performance is better, the vibration is small, and the noise is low. The specific shape of the lap is not limited, and preferably, the cross section of the lap is in a Z shape, that is, the lap bends the edge of one of the air duct lower shell 1 and the air duct upper shell 2 to form a step-shaped structure, after the air duct lower shell 1 and the air duct upper shell 2 are buckled, the joint of the air duct lower shell 1 and the air duct upper shell 2 is overlapped together, the air duct lower shell 1 and the air duct upper shell 2 have the same size, and the fan shell is more beautiful as a whole.

As shown in fig. 5 and 6, a junction box 82 is integrally formed on the outer side of the casing main body 81, a connection post 83 is provided in the junction box 82 on the casing main body 81, and a power supply board 84 is fixed to the connection post 83 by a connector. The connecting column 83 is preferably an internal threaded column, the connecting piece is preferably a bolt, the connecting structure is more stable, and the mounting and dismounting are convenient. The case main body 81 and the junction box 82 are integrally formed by injection molding, the sealing performance is good, and the oil smoke is prevented from permeating into a gap between the case main body 81 and the junction box 82, so that the oil smoke is prevented from corroding the power panel 84 in the junction box 82, the use is safer, the service life of the whole machine is prolonged, and the product quality is improved. The top of the junction box 82 is provided with a junction box cover, so that dust and winged insects are prevented from entering the junction box 82, and the safety is improved.

The connecting column 83 has a certain height, and a space is reserved above and below the power panel 84 after installation, so that heat dissipation is facilitated, the working state of the power panel 84 is more stable, and the service life is longer. The power panel 84 is fixed by the screws penetrating the connecting posts 83, so that the situation that the screws penetrate through the top surface of the case body 81 to cause oil smoke to seep into the junction box 82 from gaps around the screws is avoided.

The side of the junction box 82 is provided with an installation port 88, and when the junction box is assembled and disassembled, the power panel 84 enters and exits from the installation port 88. The structure with the side opening is more convenient for observing the connection conditions of the upper part, the lower part, the left side, the right side and the front side of the power panel 84 at the same time, and the disassembly and the assembly are more convenient; some parts are allowed to be fixedly arranged in the junction box 82 and above the power supply board 84, the parts are more firmly installed, the power supply board 84 is installed on the side face in a mode of avoiding interference with the parts, and the dismounting efficiency is higher.

Note that the above description is only for the preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. The fan shell is characterized by comprising an air duct lower shell (1) and an air duct upper shell (2) which are integrally formed respectively, an impeller installation cavity is formed after the air duct lower shell (1) and the air duct upper shell (2) are buckled, and one of the air duct lower shell (1) and the air duct upper shell (2) is provided with an air inlet (3) communicated to the impeller installation cavity.

2. The blower housing according to claim 1, characterized in that the air duct lower shell (1) and the air duct upper shell (2) are injection molded from bulk molding compound; alternatively, the first and second electrodes may be,

and an air inlet ring (4) is integrally formed at the edge of the air inlet (3).

3. The blower housing according to claim 1, wherein an air inlet of the air duct lower casing (1) extends outward to form an air outlet valve lower half (11), an air inlet of the air duct upper casing (2) extends outward to form an air outlet valve upper half (21), and after the air duct lower casing (1) and the air duct upper casing (2) are fastened, the air outlet valve lower half (11) and the air outlet valve upper half (21) form an air outlet valve.

4. The blower housing according to claim 3, characterized in that the bottom edges of the lower outlet valve half (11) and the upper outlet valve half (21) are respectively formed with mounting flanges (5) extending outwards in the radial direction.

5. The blower housing according to any one of claims 1 to 4, wherein an edge of one of the air duct lower shell (1) and the air duct upper shell (2) forms a lap edge, and after the air duct lower shell (1) and the air duct upper shell (2) are fastened, the lap edge abuts against an edge inner surface or an edge outer surface of the other of the air duct lower shell (1) and the air duct upper shell (2).

6. Fan assembly comprising a motor (6) and an impeller (7) connected, characterized in that it further comprises a fan housing according to any of claims 1 to 5, the motor (6) and the impeller (7) being arranged in the impeller mounting cavity.

7. A range hood comprising a cabinet body (81), and further comprising a fan assembly as claimed in claim 6, the fan assembly being disposed in the cabinet body (81).

8. The range hood according to claim 7, wherein a first guide (91) is provided on at least one of the air duct lower casing (1) and the air duct upper casing (2), and a second guide (92) adapted to the first guide (91) is provided on an inner wall surface of the cabinet main body (81).

9. The range hood according to claim 7 or 8, wherein a junction box (82) is integrally formed on an outer side of the cabinet main body (81), a connecting column (83) is arranged on the cabinet main body (81) and in the junction box (82), and a power supply board (84) is fixed on the connecting column (83) through a connecting piece.

10. The range hood according to claim 9, wherein a mounting opening (88) for the power board (84) to enter and exit is formed in a side surface of the junction box (82).

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