TWM552084U - Exhaust hood device and fan unit thereof - Google Patents

Description

Range hood device and its fan unit

The present invention relates to a range hood device and a fan unit thereof, and more particularly to a range hood device and a fan unit thereof for improving exhaust efficiency and reducing noise.

First of all, the existing range hood mainly uses a fan unit disposed inside the range hood to suck the soot into the interior of the range hood and then discharge it to the outside. However, in order to improve the efficiency of exhausting smoke, the existing range hoods often use the method of increasing the rotational speed to increase the efficiency of exhausting smoke. However, this way of increasing the efficiency of exhausting smoke can cause excessive noise due to high speed operation.

In addition, although the exhaust fan efficiency is increased by increasing the size of the overall fan unit (increasing the size of the impeller), such a solution will greatly increase the overall size of the range hood, and thus is not suitable for a small-scale kitchen installation environment.

Therefore, how to propose a range hood device and a fan unit thereof capable of increasing the efficiency of exhausting smoke and reducing noise has overcome the above-mentioned drawbacks, and has become an important subject to be solved by those skilled in the art.

The technical problem to be solved by the present invention is to provide a range hood device and a fan unit thereof for improving the exhaust efficiency and reducing noise in view of the deficiencies of the prior art.

In order to solve the above technical problem, one of the technical solutions adopted by the present invention is to provide a fan unit including a volute unit, a driving unit and an impeller unit. The volute unit has a volute casing, an accommodating space, an air flow passage communicating with the accommodating space, and an air outlet communicating with the air flow passage. The accommodating space, the air flow path, and the air outlet are all located in the volute, The volute has a tongue portion and a cover portion connected to the tongue portion between the tongue portion and the air outlet, and the cover portion and the air outlet have a degree of 50 degrees therebetween Angle of inclination to 70 degrees. The driving unit is disposed on the volute unit. The impeller unit is disposed on the drive unit. Wherein the impeller unit is rotated by driving of the drive unit.

Another technical solution adopted by the present invention is to provide a range hood device comprising a collecting hood, a hood and a fan unit. The hood is coupled to the hood. The fan unit is disposed in the wind hood, and the fan unit includes a volute unit, a driving unit and an impeller unit. The volute unit has a volute housing, an accommodating space, an air flow passage communicating with the accommodating space, and an air outlet communicating with the air flow passage, wherein the accommodating space and the air flow And the air outlet is located in the volute, the volute has a tongue portion and a cover portion connected to the tongue portion between the tongue portion and the air outlet port, The cover portion and the air outlet have an inclination angle of between 50 degrees and 70 degrees. The driving unit is disposed on the volute unit. The impeller unit is disposed on the drive unit. Wherein the impeller unit is rotated by driving of the drive unit.

The beneficial effects of the present invention may be that the range hood device and the fan unit thereof provided by the embodiment of the present invention can pass the “inclination angle between 50 degrees and 70 degrees between the cover portion and the air outlet”. "Technical features" to achieve improved exhaust efficiency and reduced noise.

In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings are only for reference and description, and are not intended to limit the creation.

U‧‧‧hood hood device

1‧‧‧Fan unit

11‧‧‧ volute unit

111‧‧‧ volute

1111‧‧ ‧Tongue

1112‧‧‧ Cover Section

1113‧‧‧ accommodating slots

112‧‧‧ accommodating space

113‧‧‧ air passage

114‧‧‧air outlet

12‧‧‧Drive unit

13‧‧‧ Impeller unit

131‧‧‧First impeller group

132‧‧‧Second impeller group

133‧‧‧ Spacer

13P‧‧‧ leaves

14‧‧‧ ring unit

15‧‧‧Mute unit

2‧‧‧ collecting hood

3‧‧‧Wind cover

31‧‧‧ gas flow space

4‧‧‧Transfer unit

Θ‧‧‧ tilt angle

D‧‧‧Predetermined outer diameter

R‧‧‧Predetermined radius

W1‧‧‧first predetermined width

W2‧‧‧ second predetermined width

11‧‧‧ entrance angle

22‧‧‧ exit angle

C1‧‧‧ imaginary inner circle

C2‧‧‧ imaginary outer circle

T1‧‧‧ imaginary inner circle tangent

T2‧‧‧ imaginary external tangent

A1‧‧‧ first arc tangent

A2‧‧‧Second arc tangent

L‧‧‧ shortest distance

1 is a perspective view of a three-dimensional assembly of a range hood device according to an embodiment of the present invention.

2 is a perspective exploded view of the hood device of the present embodiment.

FIG. 3 is another perspective exploded view of the hood device of the present embodiment.

4 is a schematic perspective cross-sectional view of FIG. 1.

FIG. 5 is a perspective exploded view of FIG. 4. FIG.

FIG. 6 is another perspective exploded view of FIG. 4. FIG.

FIG. 7 is a perspective exploded view of the fan unit of the present embodiment.

FIG. 8 is a schematic perspective view of the fan assembly of the present embodiment.

Figure 9 is a side elevational view of the impeller unit of the fan unit of the present embodiment.

Figure 10 is a perspective view, partly in section, of the XII-XII section line of Figure 1.

Figure 11 is another perspective cross-sectional view of the XII-XII section line of Figure 1.

Figure 12 is a side cross-sectional view showing the XII-XII cross-sectional line of Figure 1.

Fig. 13 is a partially enlarged schematic view showing a portion XIII of Fig. 12.

Figure 14 is a front elevational view of the blade of the fan unit of the present embodiment.

The following is a specific embodiment to illustrate the implementation of the "hood hood device and its fan unit" disclosed in the present disclosure, and those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in the specification. The present invention may be implemented or applied in various other specific embodiments, and various details in the present specification may be made based on different viewpoints and applications, and various modifications and changes may be made without departing from the spirit of the present invention. In addition, the drawings of the present creation are only for the purpose of simple illustration, and are not stated in advance according to the actual size. The following embodiments will further explain the related technical content of the present invention, but the disclosure is not intended to limit the scope of protection of the present invention.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements or signals, etc., these elements or signals are not limited by these terms. These terms are used to distinguish one element from another, or a signal and another. Also, as used herein, the term "or" may include all combinations of any one or more of the associated listed items.

First, please refer to FIG. 1 to FIG. 4 , FIG. 1 is a schematic perspective view of a hood device according to an embodiment of the present invention, and FIG. 2 and FIG. 3 are schematic exploded perspective views of the hood device of the present embodiment. FIG. Figure 1 is a schematic perspective view of the same. This creation The embodiment provides a range hood device U and its fan unit 1. The overall structure of the hood device U will be described below, and the overall structure of the fan unit 1 will be further described in the following. In detail, as shown in FIGS. 1 to 4, the hood device U may include a collecting hood 2, a hood 3, and a fan unit 1. The windshield 3 can be connected to the collecting hood 2, and the fan unit 1 can be disposed in the windshield 3. In addition, preferably, the hood device U may further include an adapter unit 4 for connecting the exhaust pipe, and the adapter unit 4 may be disposed on the hood 3. Thereby, the soot can be sucked through the blower unit 1 and sequentially passed through the hood 2, a gas flow space 31 of the hood 3, the fan unit 1 and the transfer unit 4, and the soot is discharged into the exhaust pipe.

Next, please refer to FIG. 5 and FIG. 6 , and at the same time, FIG. 5 and FIG. 6 are respectively a perspective exploded view of FIG. 4 . The wind unit 1 can include a volute unit 11, a drive unit 12, and an impeller unit 13. The drive unit 12 may be disposed on the volute unit 11 and the impeller unit 13 may be disposed on the drive unit 12, whereby the impeller unit 13 may be rotated by the drive of the drive unit 12. In addition, the fan unit 1 may further include a ring unit 14 which may be disposed on the volute unit 11 as a covering body for covering the partial impeller unit 13. However, the present invention is not limited thereto. In other words, in other embodiments, the ring piece unit 14 may not be provided. Further, for example, the driving unit 12 can be a motor to drive the rotation of the impeller unit 13, and those skilled in the art can understand the configuration of the prior art driving unit 12 and the impeller unit 13. Let me repeat.

Further, please refer to FIG. 7 and FIG. 8 , and at the same time, as shown in FIG. 5 and FIG. 6 , FIG. 7 and FIG. 8 are respectively a three-dimensional exploded schematic view and a three-dimensional combination diagram of the fan unit of the present embodiment. In detail, the volute unit 11 can have a volute 111, an accommodating space 112, an airflow path 113 connected to the accommodating space 112, and an air outlet 114 connected to the airflow path 113, and the accommodating space 112. The air passage 113 and the air outlet 114 are all located in the volute 111. In addition, the impeller unit 13 can be disposed in the accommodating space 112 of the volute unit 11 , and the adapter unit 4 can communicate with the air outlet 114 of the volute unit 11 . Thereby, the impeller unit 13 can be driven by the driving unit 12 The gas is caused to flow so that the soot can sequentially pass through the hood 2, the gas flow space 31 of the hood 3, the accommodating space 112 of the fan unit 1, the air flow path 113, and the air outlet 114.

Please refer to FIG. 7 and FIG. 8 together with FIG. 5 and FIG. 6. It should be noted that, in the embodiment shown in FIG. 7 and FIG. 8 , compared with the embodiment shown in FIG. 5 and FIG. The fan unit 1 may further include a muffler unit 15 for reducing the noise (or noise) generated by the fan unit 1. For example, the muffler unit 15 may be made of sponge or sound absorbing cotton. However, this creation is not limited to this. Further, the volute housing 111 can have a receiving slot 1113. The sound absorbing unit 15 can be disposed in the receiving slot 1113 of the volute 111.

Referring to FIG. 7 and FIG. 8 , the impeller unit 13 may include a first impeller group 131 , a second impeller group 132 , and a partition plate 133 disposed between the first impeller group 131 and the second impeller group 132 . . It should be noted that the positions of the first impeller group 131 and the second impeller group 132 defined by the present invention are mainly separated by the partition plate 133, and the impeller unit 13 can be disposed on the driving unit 12 through the partition plate 133. . Further, the first impeller group 131 and the second impeller group 132 of the impeller unit 13 may respectively include a plurality of blades 13P equally spaced and disposed on opposite sides of the partition plate 133. In other words, the partition plate 133 may be a disk-shaped hub, and a plurality of blades may be disposed on the partition plate 133. In addition, it is necessary to specify that the detailed parameters of the blade 13P are introduced later.

Please refer to FIG. 9 together. FIG. 9 is a side view of the impeller unit of the fan unit of the present embodiment. For example, the first impeller group 131 may have a first predetermined width W1, and the second impeller group 132 may have a second predetermined width W2, wherein the position of the first predetermined width W1 is the partition plate 133 to the first impeller group The distance of the edge of the 131, the position of the second predetermined width W2 is the distance from the edge of the partition plate 133 to the second impeller group 132, and the driving unit 12 may be disposed adjacent to the second impeller group 132, or directly disposed at the The space surrounded by the two impeller groups 132.

As shown in FIG. 9, in the present creative embodiment, the first predetermined width W1 can be large. At a second predetermined width W2, and a ratio between the first predetermined width W1 and the second predetermined width W2 may be between 1 and 1.86. Preferably, the ratio between the first predetermined width W1 and the second predetermined width W2 may be between 1.6 and 1.86. Thereby, the exhaust efficiency (or the smoking effect) of the range hood device U can be increased by the feature that the ratio between the first predetermined width W1 and the second predetermined width W2 can be between 1 and 1.86. Further, the impeller unit 13 has a predetermined outer diameter D of between 200 mm (millimeter, mm) and 230 mm, and preferably, the predetermined outer diameter D may be between 210 mm and 220 mm, in addition, For the creation embodiment, the predetermined outer diameter D may be 222 mm, but the creation is not limited thereto.

10 and FIG. 12, FIG. 10 and FIG. 11 are respectively a schematic cross-sectional view of the XII-XII cross-sectional line of FIG. 1, and FIG. 12 is a side cross-sectional view of the XII-XII cross-sectional line of FIG. In detail, the volute 111 can have a tongue portion 1111 and a cover portion 1112 connected to the tongue portion 1111 between the tongue portion 1111 and the air outlet 114. The cover portion 1112 and the air outlet 114 can have An inclination angle θ between 50 degrees and 70 degrees, preferably, the inclination angle θ may be between 55 degrees and 67 degrees, and more preferably, in the present embodiment, the inclination angle θ may be 60 degrees . It should be noted that the accommodating groove 1113 of the volute 111 may be adjacent to the tongue 1111 and may be located at the side of the cover portion 1112. Thereby, when the silencing unit 15 is disposed in the accommodating groove 1113, the muffling unit 15 can abut against the volute casing 111 and adjacent to the tongue portion 1111, so that the overall noise of the fan unit 1 can be reduced.

Next, please refer to FIG. 13, which is a partially enlarged schematic view of a portion XIII of FIG. In the present embodiment, the tongue 1111 of the volute 111 may have a predetermined radius R between 5 mm and 10 mm, preferably the predetermined radius R may be between 6 mm and 10 mm. Preferably, in the present embodiment, the predetermined radius R may be 6 mm, but the creation is not limited thereto. In addition, the tongue 1111 of the volute 111 may have a shortest distance L between 5 mm and 10 mm between the impeller unit 13 . Preferably, in the case of the present embodiment, the shortest distance L may be 8 mm. However, this creation is not limited to this.

Next, please refer to FIG. 14, which is a front view of the blade of the fan unit of the present embodiment. The impeller unit 13 may define an imaginary outer tangent line T2 and an imaginary inner circle tangent line T1 through the plurality of vanes 13P. The imaginary outer tangent T2 may be defined by an imaginary outer circle C2, which may be the furthest distance between the blade 13P and the rotational axis (the rotational axis of the impeller unit 13). Further, the imaginary inner circle tangent T1 may be defined by an imaginary inner circle C1 which may be the closest distance between the blade 13P and the rotation axis (the rotation axis of the impeller unit 13). Thereby, the imaginary outer tangent line T2 is a tangent of the virtual outer circle C2, and the virtual inner circle tangent T1 is a tangent of the virtual inner circle C1.

Further, referring to FIG. 14, a first arc tangent line A1 of the blade 13P adjacent to the imaginary inner circle tangent T1 and the imaginary inner circle tangent line T1 have an entrance angle α1 adjacent to the imaginary outer circle tangent. An exit angle α2 between a second arc tangent line A2 of the blade 13P of T2 and the imaginary outer circle tangent line T2. The first curved surface tangent A1 may be a tangent to a portion of the blade 13P adjacent to the imaginary inner circle C1, and the second curved surface tangent line A2 may be a tangent to a portion of the blade 13P adjacent to the imaginary outer circle C2. Further, for example, the blade 13P may have an inlet angle α1 between 80 degrees and 95 degrees and an exit angle α2 between the inlet angle α1 and between 135 degrees and 160 degrees. Preferably, the inlet angle α1 may be between 85 degrees and 90 degrees, and the outlet angle α2 may be between 145 degrees and 150 degrees. However, the creation is not limited thereto. Thereby, the exhaust efficiency and the noise can be greatly improved by the above-described inlet angle α1 between 80 degrees and 95 degrees and the exit angle α2 between 135 degrees and 160 degrees.

In summary, the beneficial effect of the present invention may be that the hood device U and the fan unit 1 provided by the present embodiment can pass between “the cover portion 1112 and the air outlet 114 have a range of 50 degrees to 70 degrees”. The technical characteristics of the inclination angle θ" between them are to achieve an effect of increasing the efficiency of exhausting smoke and reducing noise.

Further, in cooperation with the predetermined outer diameter D of the impeller unit 13 between 200 mm and 230 mm, the overall volume of the fan unit 1 can be greatly reduced. And the ratio between the first predetermined width W1 and the second predetermined width W2 is between 1 and 1.86. The ratio can greatly improve the exhaust efficiency of the fan unit 1. Further, by the tongue portion 1111 having a predetermined radius R of between 5 mm and 10 mm, the noise can be reduced and the air outlet wind pressure can be increased. At the same time, the tongue portion 1111 of the volute casing 111 to the impeller unit 13 can have a shortest distance L between 5 mm and 8 mm, and the effect of reducing noise and increasing the wind pressure of the air outlet can also be achieved.

The above description is only a preferred and feasible embodiment of the present invention, and is not intended to limit the scope of the patents of the present invention. Therefore, all equivalent technical changes made by using the present specification and the contents of the drawings are included in the scope of protection of the present invention.

U‧‧‧hood hood device

1‧‧‧Fan unit

11‧‧‧ volute unit

111‧‧‧ volute

112‧‧‧ accommodating space

12‧‧‧Drive unit

13‧‧‧ Impeller unit

14‧‧‧ ring unit

2‧‧‧ collecting hood

3‧‧‧Wind cover

31‧‧‧ gas flow space

4‧‧‧Transfer unit

Claims (21)

A fan unit includes: a volute unit having a volute housing, an accommodating space, an air flow passage communicating with the accommodating space, and an air outlet communicating with the air flow passage The accommodating space, the air flow path, and the air outlet are all located in the volute, the volute has a tongue and a tongue connected to the tongue and located at the tongue a cover portion between the air outlets, the cover portion and the air outlet have an inclination angle between 50 degrees and 70 degrees; a driving unit, the driving unit is disposed on the worm And a impeller unit, the impeller unit being disposed on the driving unit; wherein the impeller unit is rotated by driving of the driving unit. The fan unit of claim 1, wherein the tilt angle is between 55 degrees and 67 degrees. The fan unit of claim 1, wherein the impeller unit has a predetermined outer diameter of between 200 mm and 230 mm. The fan unit of claim 3, wherein the predetermined outer diameter is between 210 mm and 220 mm. The fan unit according to claim 1, wherein the impeller unit comprises a first impeller group, a second impeller group, and a partition plate disposed between the first impeller group and the second impeller group. The impeller unit is disposed on the driving unit through the partition plate, wherein the first impeller group has a first predetermined width, and the second impeller group has a second predetermined width, the first A predetermined width is greater than the second predetermined width, and a ratio between the first predetermined width and the second predetermined width is between 1 and 1.86. The fan unit according to claim 5, wherein the first impeller group and the second impeller group of the impeller unit respectively comprise a plurality of equally spaced intervals and are disposed at a blade on opposite sides of the spacer, each of the blades having an entrance angle between 80 degrees and 95 degrees and a relative angle to the inlet angle between 135 degrees and 160 degrees Exit angle. The fan unit according to claim 6, wherein the impeller unit defines an imaginary outer tangent and an imaginary inner tangent through a plurality of the vanes, and one of the vanes adjacent to the imaginary inner tangent Between the first curved tangent and the imaginary inner tangent, the inlet angle is provided, and a second curved tangent to the imaginary outer tangent adjacent to the imaginary outer tangent has a relationship between the second curved tangent and the imaginary outer tangent Said the exit angle. The fan unit of claim 1, wherein the tongue of the volute has a predetermined radius of between 5 mm and 10 mm. The fan unit according to claim 1, wherein the tongue of the volute has a shortest distance between the nozzle unit and the impeller unit of between 5 mm and 10 mm. The fan unit of claim 1, further comprising: a sound absorbing unit, wherein the volute further has a receiving groove adjacent to the tongue, and the sound absorbing unit is disposed in the accommodating unit Set in the slot. A hood device comprising: a collecting hood; a hood, the hood is connected to the collecting hood, and a fan unit, the fan unit is disposed in the hood, the fan unit The volute unit includes a volute housing, an accommodating space, an air flow passage communicating with the accommodating space, and an air outlet communicating with the air flow passage, wherein The accommodating space, the air flow passage and the air outlet are all located in the volute, the volute has a tongue portion and a tongue portion connected to the tongue portion and the air outlet a cover portion, the cover portion and the air outlet have an inclination angle between 50 degrees and 70 degrees; a driving unit, the driving unit is disposed on the volute unit; An impeller unit, the impeller unit being disposed on the drive unit; wherein the impeller unit is rotated by driving of the drive unit. The hood device of claim 11, further comprising: an adapter unit, the adapter unit is disposed on the hood, and the adapter unit is connected to the volute unit tuyere. The hood apparatus of claim 11, wherein the tilt angle is between 55 degrees and 67 degrees. The hood apparatus of claim 11, wherein the impeller unit has a predetermined outer diameter of between 200 mm and 230 mm. The hood apparatus of claim 11, wherein the predetermined outer diameter is between 210 mm and 220 mm. The hood apparatus of claim 11, wherein the impeller unit comprises a first impeller group, a second impeller group, and an interval disposed between the first impeller group and the second impeller group a plate, the impeller unit is disposed on the driving unit through the partition plate, wherein the first impeller group has a first predetermined width, and the second impeller group has a second predetermined width, The first predetermined width is greater than the second predetermined width, and a ratio between the first predetermined width and the second predetermined width is between 1 and 1.86. The hood apparatus of claim 16, wherein the first impeller group and the second impeller group of the impeller unit respectively comprise a plurality of equally spaced intervals and are disposed on opposite sides of the partition plate The plurality of blades each have an inlet angle between 80 degrees and 95 degrees and an outlet angle relative to the inlet angle and between 135 degrees and 160 degrees. The hood apparatus of claim 17, wherein the impeller unit defines, by a plurality of the blades, an imaginary outer tangent and an imaginary inner tangent, the vane adjacent to the imaginary inner tangent a first arcuate tangent line and the imaginary inner circle tangent line having the inlet angle, and a second arc tangent to the imaginary outer circle tangent to the imaginary outer circle tangent The exit angle. The hood apparatus of claim 11, wherein the tongue of the volute has a predetermined radius of between 5 mm and 10 mm. The hood apparatus of claim 11, wherein the tongue of the volute has a shortest distance between 5 mm and 10 mm between the impeller units. The hood apparatus of claim 11, wherein the fan unit further comprises: a sound absorbing unit, wherein the volute further has a receiving groove adjacent to the tongue, and the The sound absorbing unit is disposed in the accommodating groove.