Fan system, range hood and integrated cooker
By combining the horizontal support surface of the volute with the U-shaped design of the main support and the cushioning pad, the problem of vibration transmission between the volute and the chassis is solved, achieving stable installation of the fan system and noise reduction.
Patent Information
- Application Number
- CN202520409960.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-03-10
AI Technical Summary
In the existing technology, the rigid connection between the volute and the chassis leads to vibration transmission, resulting in noise and installation instability.
The system adopts a U-shaped design with a horizontal support surface of the volute and a main bracket. It is combined with the chassis through a horizontal mounting plate to achieve stable support, and a buffer pad is set on the support surface to reduce vibration transmission.
The installation process is simple, reducing direct contact between the volute and the bracket, improving the ease and stability of installation, and reducing noise and vibration.
Smart Images

Figure CN223648155U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fan technology for oil fume extraction equipment, and in particular to a fan system, an oil fume extraction hood, and an integrated stove. Background Technology
[0002] One of the core components of a range hood is the centrifugal fan, which mainly consists of a volute, a motor, and an impeller. The volute's function is to collect and guide the airflow generated by the impeller's rotation to the outside. In traditional designs, the volute is usually rigidly connected to the casing via a sheet metal bracket.
[0003] For example, patent CN219691823U discloses a volute, a centrifugal fan using the volute, and an integrated stove. The specification of this patent is attached... Figure 1 As can be seen, the volute is connected to the chassis via four L-shaped plate brackets on both sides. The two L-shaped plate brackets are arranged opposite each other, and each L-shaped plate bracket has mounting holes for docking with the chassis on its horizontal plate, with the horizontal plate close to the volute.
[0004] For example, the patent with authorization announcement number CN222502192U discloses a volute mounting assembly, including a bracket for connecting to the volute and an external mounting base respectively. The bracket is at least partially located on the outside of the volute, and the bracket has a first mounting hole for connecting the bracket to the external mounting base at the position exposed on the outside of the volute. The bracket includes: a first mounting plate that fits against the outer surface of the volute and a second mounting plate that is substantially parallel to the first mounting plate and connected by a connecting plate. The outer end of the second mounting plate is exposed on the outside of the volute, and the first mounting hole is provided on the outer end of the second mounting plate.
[0005] However, the solutions described in the aforementioned patents essentially involve a localized, hard-contact installation between the bracket and the chassis. This causes the vibration of the volute to be directly transmitted to the chassis, resulting in resonance and significant noise. Furthermore, due to the vibration, the connections between the sheet metal bracket and the chassis, and between the sheet metal bracket and the volute, are impacted, affecting the stable installation of the fan. Utility Model Content
[0006] The technical problem to be solved by this utility model is to provide a fan system that is easier to install and has better stability, as well as a range hood and integrated stove with the fan system.
[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a fan system, including a volute, an impeller and a motor, wherein a horizontal support surface is provided on the side of the volute away from the air outlet, and a main support and at least one other auxiliary support are provided on one side of the horizontal support surface.
[0008] The main support is U-shaped and includes a first support plate, a horizontal mounting plate, and a second support plate. The free ends of the first and second support plates are bent to form a connecting part, which is fixed to the volute casing. The first and second support plates create a gap between the horizontal mounting plate and the volute casing. The outer surface of the horizontal mounting plate and the horizontal support surface are on the same plane.
[0009] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the casing plate has a cross-section, and the cross-section forms the horizontal support surface.
[0010] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the volute includes a first side plate and a second side plate, the edges of the first side plate and the second side plate extend beyond the outer surface of the enclosure, the first side plate and the second side plate have parallel tangents, and the tangents together form a horizontal support surface.
[0011] The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: the surrounding plate of the volute has a cross-section, the volute includes a first side plate and a second side plate, the edges of the first side plate and the second side plate extend beyond the outer surface of the surrounding plate, the first side plate and the second side plate have tangent edges parallel to the cross-section, the tangent edges form transverse convex ridges on both sides of the cross-section, and the cross-section is lower than the convex ridges.
[0012] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a buffer pad is provided on the cut surface, and the outer surface of the buffer pad forms the horizontal support surface.
[0013] The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: the first support plate and the second support plate are inclined at an obtuse angle to the horizontal mounting plate, and the inclination directions of the first support plate and the second support plate are opposite.
[0014] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an auxiliary support is provided on the other side of the volute opposite to the main support, the auxiliary support has the same structure as the main support, and the horizontal mounting plates of the two are parallel to each other.
[0015] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: several notches are provided at the corners where the horizontal mounting plate connects with the first support plate and the second support plate, and multiple mounting holes are provided on the horizontal mounting plate.
[0016] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a range hood, including a casing and a fan system, wherein the main support and the auxiliary support are connected to the casing.
[0017] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: an integrated stove, including a casing and a fan system, wherein the main support and the auxiliary support are connected to the casing.
[0018] Compared with existing technologies, the advantages of this invention are: stable support is achieved through the combination of the horizontal support surface of the volute and the horizontal mounting plate of the main bracket with the casing of the range hood or integrated stove. During installation, the horizontal support surface serves as a reference, allowing the fan system to be stably placed in the casing of the range hood or integrated stove before the bracket is fixed, thereby improving the convenience and safety of installation. The U-shaped structure design of the bracket and its tight fit with the volute make the installation process simpler, while the horizontal support surface distributes the installation load of the bracket, enhancing installation stability and reducing shaking and abnormal noise caused by insecure installation.
[0019] The U-shaped design of the main support creates a gap between the horizontal mounting plate and the casing plate, avoiding direct contact between the casing and the support, thus effectively reducing vibration and noise. Attached Figure Description
[0020] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.
[0021] Figure 1 A three-dimensional structural diagram of an assembly consisting of a volute, a support frame, and a cushioning pad for a wind turbine system;
[0022] Figure 2 An exploded view of an assembly consisting of a volute, a support frame, and a cushioning pad for a wind turbine system;
[0023] Figure 3 A three-dimensional structure of a volute and support for a wind turbine system. Figure 1 ;
[0024] Figure 4 A three-dimensional structure of a volute and support for a wind turbine system. Figure 2 ;
[0025] Figure 5 This is a schematic diagram of the main support structure of a wind turbine system. Detailed Implementation
[0026] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.
[0027] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it will not be further defined and explained in subsequent figures.
[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the usual placement of the product during use. These may differ from the orientations in the accompanying drawings. They are used solely for the purpose of describing the utility model from the same reference and for simplification, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Similarly, "first" and "second" are used only for ease of understanding and have no other directional meaning; they should not be considered as limitations on this utility model.
[0029] like Figure 1-4 As shown, a fan system is installed in a range hood or integrated stove. It includes a volute 1, an impeller (not shown) and a motor (not shown). The side of the volute 1 away from the air outlet D is provided with a horizontal support surface. A main bracket 2 and at least one other auxiliary bracket 3 are provided on one side of the horizontal support surface.
[0030] like Figure 2 , 5 As shown, the main support 2 is U-shaped and includes a first support plate a, a horizontal mounting plate c, and a second support plate b. The free ends of the first support plate a and the second support plate b are bent to form a connecting part d. The connecting part d is fixed to the surrounding plate 11 of the volute 1. The first support plate a and the second support plate b make a gap between the horizontal mounting plate c and the surrounding plate 11 of the volute 1. The outer surface of the horizontal mounting plate c and the horizontal support surface are on the same plane.
[0031] Stable support is achieved through the combination of the horizontal support surface of the volute 1 and the horizontal mounting plate c of the main bracket 2 with the casing of the range hood or integrated stove. During installation, the horizontal support surface serves as a reference, allowing the fan system to be stably placed in the casing of the range hood or integrated stove before the bracket is fixed, thereby improving the convenience and safety of installation. The U-shaped structure design of the bracket and its tight fit with the volute 1 make the installation process simpler, while the horizontal support surface distributes the installation load of the bracket, enhancing installation stability and reducing shaking and abnormal noise caused by insecure installation.
[0032] The U-shaped design of the main support 2 creates a gap between the horizontal mounting plate c and the surrounding plate 11 of the volute 1, avoiding direct contact between the volute 1 and the support, thereby effectively reducing vibration and noise.
[0033] Preferably, such as Figure 1 As shown, the horizontal support surface is set on a buffer pad 4, which further reduces the transmission of vibration of the volute 1 to the chassis, improves the shock absorption effect, effectively reduces the generation of noise, and can also buffer the load on the bracket.
[0034] like Figure 1-4 As shown, the horizontal support surface and the main bracket 2 are set at a 90-degree angle to the air outlet.
[0035] like Figure 1-4 As shown, in one embodiment, the casing 1's surrounding plate 11 has a cross section e, where a horizontal support surface is formed, and a cushioning pad 4 can be disposed on the cross section e.
[0036] For example Figure 3 , 4 As shown, in another embodiment, the volute 1 includes a first side plate 12 and a second side plate 13. The edges of the first side plate 12 and the second side plate 13 extend beyond the outer surface of the enclosure 11. The first side plate 12 and the second side plate 13 have mutually parallel tangent edges f, which together form a horizontal support surface. A cushioning pad can be disposed on the tangent edges f, which creates a certain distance between the enclosure 11 of the volute 1 and the chassis, thereby reducing vibration transmission and thus reducing noise.
[0037] The design of the cut surface e or cut edge f as a support structure integrates the horizontal support surface with the volute 1 itself, reducing the need for additional support structures, simplifying the manufacturing process, and lowering costs.
[0038] In this embodiment, such as Figure 1-2 As shown, the casing 1 has a sectional surface e on its surrounding plate 11. The casing 1 includes a first side plate 12 and a second side plate 13. The edges of the first side plate 12 and the second side plate 13 extend beyond the outer surface of the surrounding plate 11. The first side plate 12 and the second side plate 13 have tangent edges f parallel to the sectional surface e. The tangent edges f form transverse convex ridges y on both sides of the sectional surface e, and the sectional surface e is lower than the convex ridges y. A cushioning pad 4 is provided on the sectional surface e, and the outer surface of the cushioning pad 4 forms a horizontal support surface.
[0039] Preferably, such as Figure 1 As shown, the cushioning pad 4 has grooves on both sides that correspond to the convex ridge y, and the cushioning pad 4 extends to the convex ridge y.
[0040] like Figure 5As shown, in the preferred embodiment, the first support plate a and the second support plate b are inclined at an obtuse angle to the horizontal mounting plate c, and the inclination directions of the first support plate a and the second support plate b are opposite. The inclined design of the first support plate a and the second support plate b increases the structural strength of the support and improves the vibration resistance of the fan, while the design of opposite inclination directions makes the support more stable, further reducing vibration transmission and lowering noise.
[0041] like Figure 1-4 As shown, on the opposite side of the volute 1 and the main support 2, there is an auxiliary support 3 that is arranged opposite to it. The auxiliary support 3 has the same structure as the main support 2, and the horizontal mounting plates c of the two are parallel to each other. This not only enhances the connection firmness and stability, but also facilitates installation and fixing, and ensures the levelness of the fan system.
[0042] like Figure 5 As shown, several notches k are provided at the corners where the horizontal mounting plate c connects to the first support plate a and the second support plate b, and multiple mounting holes j are provided on the horizontal mounting plate c. The notches k design reduces stress concentration and improves the structural strength of the support, while the multiple mounting holes design facilitates installation and fixing, ensuring the stability of the fan system.
[0043] This invention provides a fan system. Specific examples are used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments are merely for the purpose of helping to understand this invention and its core concepts. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.
Claims
1. A fan system, comprising a volute, an impeller, and a motor, characterized in that: The volute has a horizontal support surface on the side away from the air outlet, and a main support and at least one other auxiliary support are provided on one side of the horizontal support surface. The main support is U-shaped and includes a first support plate, a horizontal mounting plate, and a second support plate. The free ends of the first and second support plates are bent to form a connecting part, which is fixed to the volute casing. The first and second support plates create a gap between the horizontal mounting plate and the volute casing. The outer surface of the horizontal mounting plate and the horizontal support surface are on the same plane.
2. The fan system according to claim 1, characterized in that: The casing's surrounding plate has a cross-section, at which the horizontal support surface is formed.
3. The fan system according to claim 1, characterized in that: The volute includes a first side plate and a second side plate, the edges of which extend beyond the outer surface of the enclosure. The first side plate and the second side plate have parallel tangents that together form a horizontal support surface.
4. A fan system according to claim 1, characterized in that: The volute has a slit plate, and the volute includes a first side plate and a second side plate. The edges of the first side plate and the second side plate extend beyond the outer surface of the slit plate. The first side plate and the second side plate have slit edges parallel to the slit plate. The slit edges form transverse ridges on both sides of the slit plate, and the slit plate is lower than the ridges.
5. A fan system according to claim 4, characterized in that: A cushioning pad is provided on the cut surface, and the outer surface of the cushioning pad forms the horizontal support surface.
6. A fan system according to claim 1, characterized in that: The first support plate and the second support plate are inclined at an obtuse angle to the horizontal mounting plate, and the inclination directions of the first support plate and the second support plate are opposite.
7. A fan system according to claim 3, characterized in that: On the opposite side of the volute and the main support, there is an auxiliary support that is arranged opposite to it. The auxiliary support has the same structure as the main support, and the horizontal mounting plates of the two are parallel to each other.
8. A fan system according to claim 6, characterized in that: The horizontal mounting plate has several notches at the corners where it connects to the first and second support plates, and the horizontal mounting plate has multiple mounting holes.
9. A range hood, characterized in that... It includes a chassis and a fan system as described in any one of claims 1-8, wherein the main support and the auxiliary support are connected to the chassis.
10. An integrated stove, characterized in that... It includes a chassis and a fan system as described in any one of claims 1-8, wherein the main support and the auxiliary support are connected to the chassis.
Citation Information
Patent Citations
Volute, centrifugal fan with volute and integrated cooker
CN219691823U
Volute mounting assembly, fan system and range hood
CN222502192U