A motor mounting structure of a range hood and the range hood

Abstract

The application provides a motor mounting structure of an extractor hood, comprising a motor, a volute and a motor support, at least one side of the volute is provided with an air inlet, the motor support is sunk into the volute from the air inlet and is mounted in the volute, a supporting part is mounted at the air inlet, at least a part of the supporting part is connected with the motor support, the motor is abutted with the motor support, and the end of at least one end is connected with the supporting part. The supporting part is arranged at the air inlet, one end of the motor is connected with the supporting part, the motor is limited in the axial direction and the radial direction, the motor can be fixed and supported, the supporting part is matched with the motor support, the motor is fixed in the volute, the installation of the motor is realized, the motor is more stable in the volute, shaking is reduced, and noise generated by the motor during work is avoided.

Description

Technical Field

[0001] This invention belongs to the field of kitchen appliance technology, specifically relating to a motor mounting structure for a range hood and the range hood itself. Background Technology

[0002] With the improvement of people's living standards and the increase in China's urbanization rate, range hoods have become one of the essential kitchen appliances when people renovate their homes. Currently, range hoods are widely used in kitchens and other places where food is cooked, to remove the fumes generated during cooking and expel them outdoors. A range hood consists of a fume hood, a main housing, and a fan. The bottom of the main housing is connected to the fume hood, and the fan is located inside the main housing. During use, the fan operates, drawing the fumes from the bottom of the fume hood into the main housing through the air inlet. Simultaneously, the fan also transports the fumes from the main housing through the air outlet into the ductwork, ultimately discharging them outdoors.

[0003] However, the existing technology has the following drawbacks:

[0004] The existing fan structure includes a volute, an impeller, a motor, and a motor bracket. The volute includes a volute casing, a front volute plate, and a rear volute plate that respectively cover the openings on both sides of the casing. The impeller is located inside the volute, and the motor is mounted on the motor bracket. The motor bracket is welded to the rear volute plate by welding. Because the motor is fixed inside the volute by the motor bracket, its structure is unstable, which generates a lot of noise when the range hood is running, affecting the user experience.

[0005] In view of this, the present invention is proposed. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a motor mounting structure and range hood for a range hood, which solves the problem of instability of the motor mounting structure inside the volute in the prior art.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0008] A motor mounting structure for a range hood includes a motor, a volute, and a motor bracket. The volute has an air inlet on at least one side. The motor bracket is recessed into the volute from the air inlet. A support portion is provided on the outer periphery of the air inlet. At least a portion of the support portion is connected to the motor bracket. The motor abuts against the motor bracket, and at least one end of the motor is connected to the support portion.

[0009] Furthermore, the support includes an annular connecting portion, which fits against the outer periphery of the air inlet, and the extended end of the motor bracket is connected to the annular connecting portion.

[0010] Furthermore, the support portion also includes a circular base, which is spaced apart from the annular connecting portion. At least one end of the motor passes through the motor bracket, the outer periphery of the passing end abuts against the motor bracket, and the end of the passing end is connected to the circular base.

[0011] Furthermore, the annular connecting part is connected to the circular base by a plurality of evenly distributed support feet, which extend outward along the radial direction of the circular base.

[0012] Furthermore, the motor bracket is evenly provided with a plurality of second support feet, which are respectively inclined and extended toward the annular connecting part and connected to the annular connecting part. The annular connecting part and the extended ends of the second support feet are attached to the outer periphery of the air inlet.

[0013] Furthermore, each of the second support legs has a connecting piece at its extended end, which is attached to the outer periphery of the air inlet.

[0014] Furthermore, each second support leg is set opposite to or offset from the support leg on the corresponding side.

[0015] Furthermore, the motor bracket includes a mounting plate with mounting holes, and the motor includes a fixed end with multiple protrusions evenly distributed around its outer periphery. The fixed end passes through the mounting holes, and the protrusions abut against the mounting plate.

[0016] Furthermore, the support foot is a sheet material structure, and the annular connecting part and the two adjacent support feet form an auxiliary air intake.

[0017] The present invention also describes a range hood, wherein the range hood is equipped with the motor mounting structure of the above-mentioned range hood, the motor further includes an output end, the output end is connected to the fixed end, and a fan is also installed inside the volute, and the motor output end is interference-fitted with the fan.

[0018] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0019] 1. A support part is set on the outer periphery of the air inlet, and one end of the motor is connected to the support part. This part limits the motor in the axial and radial directions and can fix the motor. At the same time, the support part cooperates with the motor bracket to fix the motor in the volute, thereby realizing the installation of the motor, making the motor more stable in the volute, reducing vibration, and avoiding noise during operation.

[0020] 2. A gap is maintained between the motor bracket and the support part, with at least a part of the motor located in the gap. The motor bracket can limit the motor in the radial and axial directions, and the support part also limits the motor in the radial and axial directions, thereby making the motor mounting structure formed by the motor bracket and the support part more stable.

[0021] 3. Setting the second support foot opposite to the support foot can make the overall motor mounting structure more stable; or, setting the second support foot out of position can distribute the stress points of the motor bracket and support, which can reduce noise when the motor is running, and at the same time, prevent the second support foot from deforming.

[0022] 4. A connecting piece is provided at the extended end of the second support foot. The connecting piece fits against the outer periphery of the air inlet, increasing the contact area between the motor bracket and the volute, thereby making the motor bracket more stable.

[0023] At the same time, the present invention has a simple structure, significant effects, and is suitable for widespread use.

[0024] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0026] Figure 1 This is an exploded view of the motor mounting structure of a range hood according to an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the volute structure of a range hood according to an embodiment of the present invention;

[0028] Figure 3 This is an embodiment of the present invention. Figure 2 A schematic diagram of the AA structure in the diagram;

[0029] Figure 4 This is an exploded schematic diagram of the motor mounting structure of a range hood in an embodiment of the present invention from different angles;

[0030] Figure 5 This is a schematic diagram of the volute structure of a range hood from different angles in an embodiment of the present invention;

[0031] Figure 6 This is an embodiment of the present invention. Figure 5 A schematic diagram of the AA structure in the image.

[0032] Key components in the diagram: 1. Motor; 11. Fixed end; 111. Protrusion; 12. Output end; 121. Flanged edge; 2. Volute; 21. Air inlet; 3. Motor bracket; 31. Mounting plate; 311. Mounting hole; 32. Second support foot; 322. Connecting piece; 4. Support part; 41. Circular base; 42. Annular connecting part; 43. Support foot; 5. Auxiliary air intake; 6. Impeller; 61. Through hole; 62. Annular molding; 63. Enclosure; 631. Second through hole; 64. Air inlet ring.

[0033] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] Example 1

[0038] like Figures 1 to 3As shown in the embodiment of the present invention, a motor mounting structure for a range hood is introduced, including a motor 1 and a volute 2, as well as a motor bracket 3 and a support part 4. The motor bracket 3 and the support part 4 are connected, wherein the motor bracket 3 is installed inside the volute 2, and the support part 4 is fixed to the outer periphery of the air inlet 21. The motor 1 passes through the motor bracket 3 and is connected to the support part 4. The motor mounting structure includes a motor bracket 3 and a support part 4, which cooperate to limit the axial and radial directions of the motor 1 when it is installed inside the motor bracket 3, and together with the motor bracket 3, they provide fixed support. At the same time, the motor bracket 3 and the support part 4 are respectively fixed on the volute 2, making the motor 1 more stable and avoiding excessive noise during operation.

[0039] Compared with the prior art which only sets up a motor bracket 3, in this embodiment, a support part 4 is added to the outer periphery of the air inlet 21. The motor bracket 3 and the support part 4 cooperate to make the motor mounting structure more stable.

[0040] This invention provides a motor mounting structure for a range hood, comprising a motor 1, a volute 2, and a motor bracket 3. At least one side of the volute 2 has an air inlet 21. The motor bracket 3 is recessed into the volute 2 from the air inlet 21. A support portion 4 is provided around the outer periphery of the air inlet 21. At least a portion of the support portion 4 is connected to the motor bracket 3. The motor 1 abuts against the motor bracket 3, and at least one end is connected to the support portion 4. Through this arrangement, the support portion 4 and the motor bracket 3 are connected in a cooperative manner, and one end of the motor 1 is connected to the support portion 4, providing axial and radial support for the motor 1. The motor 1 passes through the motor bracket 3 and is installed inside the volute 2, thereby achieving stable installation of the motor 1 within the volute 2, reducing vibration, and preventing noise during operation.

[0041] In this embodiment of the invention, the support portion 4 includes an annular connecting portion 42, which fits against the outer periphery of the air inlet 21, and the extended end of the motor bracket 3 is connected to the annular connecting portion 42. Through the above arrangement, the motor bracket 3 and the support portion 4 are fixedly connected, forming a motor mounting structure.

[0042] The annular connecting portion 42 is located at the outermost periphery of the support portion 4 and is spaced apart from the circular base 41. Multiple support feet 43 are evenly arranged between the annular connecting portion 42 and the circular base 41, with each end of the support foot 43 connected to both the annular connecting portion 42 and the circular base 41. The spaced arrangement of the annular connecting portion 42 and the circular base 41 allows for smoother airflow at the air inlet 21. Furthermore, the annular connecting portion 42 and the support feet 43 contribute to the overall stability of the support portion 4.

[0043] The support part 4 also includes a circular base 41, the area of ​​which is larger than the end area of ​​the motor 1. When at least one end of the motor 1 passes through the motor bracket 3, the outer periphery of the passing end abuts against the motor bracket 3 and is fitted and fixedly connected to the circular base 41 of the support part 4. The motor 1 passes through the motor bracket 3 and is connected to the circular base 41, thereby achieving stable installation of the motor 1.

[0044] Of course, the base is not limited to a circle; it can also be other shapes. The circular base 41 mainly serves to fix and support the motor 1.

[0045] The plurality of support feet 43 are evenly distributed between the annular connecting portion 42 and the circular base 41, and the support feet 43 extend outward along the radial direction of the circular base 41. Preferably, in this embodiment, four support feet 43 are provided, but other numbers can also be provided. The support feet 43 extend outward along the radial direction of the circular base 41. The support feet 43, the circular base 41, and the annular connecting portion 42 are integrally formed and located in the same plane, thereby making the support portion 4 more stable.

[0046] like Figures 1 to 3 As shown, the motor bracket 3 is evenly provided with a plurality of inclined extending second support legs 32. The extended ends of the plurality of second support legs 32 are connected to the annular connecting part 42. The annular connecting part 42 and the extended ends of the second support legs 32 are fitted against the outer periphery of the air inlet 21, so as not to affect the air intake of the volute 2. The motor bracket 3 is fixedly connected to the volute 2 through the extended ends of the second support legs 32, and the support part 4 is fixedly connected to the volute 2 through the annular connecting part 42, providing a stable structure for the installation of the motor 1.

[0047] like Figures 1 to 3 As shown, multiple second support feet 32 ​​extend obliquely toward the annular connecting part 42. Each second support foot 32 is arranged opposite to the support foot 43 on the opposite side. That is, when the motor bracket 3 and the support part 4 are placed horizontally, the projection of each second support foot 32 in the vertical direction falls into the support foot 43 on the opposite side, thereby supporting each second support foot 32, making the structure of the motor bracket 3 and the support part 4 stable, and preventing the vibration generated when the motor 1 starts from deforming the second support foot 32.

[0048] Alternatively, each second support foot 32 is offset from the opposite support foot 43. That is, when the motor bracket 3 and the support part 4 are placed horizontally, the vertical projection of each second support foot 32 does not fall into or partially falls into the opposite support foot 43. With the above arrangement, when the motor bracket 3 is fixed to the outside of the volute 2, the support part 4 is also fixed to the outside of the volute 2. However, the projection of the second support foot 32 in the axial direction of the motor 1 is offset from the support foot 43. Therefore, the offset second support foot 32 and support foot 43 can decompose the force of vibration generated during the operation of the motor 1, which can alleviate the vibration generated when the motor 1 starts, thereby extending the service life of the installation structure, ensuring the stability of the motor installation structure, and also reducing noise.

[0049] like Figures 1 to 3 As shown in this embodiment of the invention, each second support leg 32 has a connecting piece 322 at its extended end, which is attached to the outer periphery of the air inlet 21. The connecting piece 322 on the second support leg 32 allows the motor bracket 3 to be recessed into the volute 2 from the air inlet 21. The connecting piece 322 increases the contact area between the motor bracket 3 and the volute 2, making the motor bracket 3 more stable on the volute 2. The connecting piece 322 is integrally formed with the second support leg 32 and is elliptical in shape. This allows for greater contact with the volute 2, increasing friction. Simultaneously, the smooth outer periphery of the ellipse facilitates installation and prevents injury to the installer's hands.

[0050] In this embodiment, the front and rear sides of the volute 2 are provided with air inlets 21, a fan wheel 6 located inside the volute 2, a motor 1 that drives the fan wheel 6 to rotate, a motor bracket 3, and a support part 4. The motor 1 is fixedly mounted on the motor bracket 3 and the support part 4, which are fixedly assembled at the air inlet 21 on one side of the volute 2. The fan wheel 6 is mounted on the motor 1 through the air inlet 21 and its position corresponds to that of the air inlet 21. The motor bracket 3 is located inside the volute 2 so that the motor 1 is located inside the volute 2.

[0051] The motor 1 is pre-installed on the motor bracket 3 to form a modular assembly component, which is then installed on the volute 2. This effectively improves the assembly efficiency of the motor 1 within the volute 2. The motor bracket 3 and support 4 in the assembly component are connected to the volute 2, facilitating worker operation and reducing assembly difficulty and efficiency. The motor bracket 3 is recessed into the volute 2 from the air inlet 21, and the support 4 is located at the air inlet 21, ensuring the motor 1 is properly positioned within the volute 2 and reducing its overall volume. Furthermore, the impeller 6 is positioned corresponding to the air inlet 21, allowing for better intake of indoor exhaust gas into the volute 2, resulting in excellent air suction.

[0052] In this embodiment of the invention, air inlets 21 are provided on both the front and rear sides of the volute 2. The volute 2 is vertically arranged, and an air outlet is provided on the top of the volute 2. When the motor 1 is started, it drives the impeller 6 to rotate, creating a negative pressure inside the volute 2. This draws the exhaust gases such as fumes and odors below the volute 2 into the volute 2 through the air inlets 21, and then discharges them to the outside through the air outlet.

[0053] In this embodiment of the invention, the motor 1 includes a fixed end 11 and an output end 12, which are connected together. The motor 1 is fixedly connected to the motor bracket 3 and the support part 4. The motor bracket 3 and the support part 4 are fixed to the volute 2 by a connecting piece 322 and an annular connecting part 42. The motor bracket 3 is fixedly assembled into the volute 2 by an air inlet 21. The support part 4 is installed at the air inlet 21, and the end of the fixed end 11 of the motor 1 is connected to the support part 4, thereby making the motor mounting structure more stable.

[0054] like Figures 1 to 3 As shown, the motor bracket 3 includes an annular mounting plate 31, a second support foot 32, and a connecting piece 322. The motor bracket 3 has a simple structure, is easy to manufacture, and has low cost. The center of the annular mounting plate 31 is a mounting hole 311. The mounting plate 31 is located inside the volute 2 and connected to the motor 1. The second support foot 32 is a sheet-like structure that extends at an angle. The connecting piece 322 is connected to the volute 2.

[0055] An annular mounting plate 31 is fitted around the cylindrical motor 1 and assembled with it. The mounting plate 31 has screw holes and is fixedly connected to the motor 1 by screws. The connection structure is stable and reliable. Moreover, the annular mounting plate 31 has little interference with airflow, allowing some exhaust gas to smoothly enter the volute 2 through the air inlet 21.

[0056] The support part 4 has a simple structure and is easy to form. The circular base 41 also has multiple screw holes. When the fixed end 11 of the motor 1 passes through the mounting hole 311, it fits and is fixedly connected to the circular base 41. The annular connecting part 42 is connected to the outer periphery of the air inlet 21, thus realizing the assembly of the motor bracket 3, the support part 4, the motor 1 and the volute 2. At the same time, the support part 4 is set to support the motor 1. In addition, the second support foot 32 of the motor bracket 3 is a plate structure. When the motor 1 is fixedly connected to the motor bracket 3, the motor 1 may deform the second support foot 32 during long-term operation. In order to stabilize the motor bracket 3, the support part 4 is set at the fixed end 11 of the motor 1. The support part 4 is connected to the volute 2 and provides a sealing and supporting function for the motor 1, preventing the motor 1 from displacing in the axial and radial directions, thus making the structure more stable.

[0057] In this embodiment, the outer periphery of the motor 1 is provided with a plurality of protrusions 111. Each protrusion 111 is a protrusion that protrudes radially outward along the fixed end 11 of the motor 1. The protrusions 111 are evenly distributed on the outer periphery of the fixed end 11 of the motor 1. When the fixed end 11 passes through the mounting hole 311 of the motor bracket 3, the protrusions 111 are fitted against the motor bracket 3. Specifically, the fixed end 11 of the motor 1 passes through the mounting plate 31, and the end of the fixed end 11 is fitted against the circular base 41. The protrusions 111 are fitted against the mounting plate 31 to limit its movement.

[0058] like Figures 1 to 3 As shown, both the support foot 43 and the second support foot 32 are plate-shaped. The plate-shaped second support foot 32 provides better and more stable support for the mounting plate 31, and its structure is simple and easy to manufacture. The annular connecting part 42 and the two adjacent support feet 43 form an auxiliary air intake 5. The auxiliary air intake 5 can assist in air intake. Since the support part 4 is installed at the air inlet 21 of the volute 2, the support foot 43 is designed as a plate-shaped structure to increase the air intake volume inside the volute 2. This design stabilizes the structure of the support part 4 and increases the air intake volume.

[0059] There are four support feet 43, and the second support feet 32 ​​are symmetrically arranged on the outer periphery of the mounting plate 31. There are also four support feet 43, symmetrically arranged on the outer periphery of the circular base 41. The second support feet 32 ​​and support feet 43 on opposite sides form a group, and a total of four groups are arranged. The support feet 43 and the second support feet 32 ​​support and position the support part 4 and the motor bracket 3 respectively, so that the position of the motor bracket 3 and the support part 4 in the volute 2 is stable and reliable, thereby ensuring the stability of the position of the motor 1. Moreover, the support feet 43 and the second support feet 32 ​​are symmetrically arranged in four different directions on the circular base 41 and the mounting plate 31, which can effectively alleviate the vibration / shaking of the motor 1 after starting, thereby reducing noise.

[0060] Example 2

[0061] In this embodiment of the invention, a range hood is introduced, in which the motor mounting structure of the above embodiment is installed. The range hood includes a volute 2, in which a motor 1 and a fan 6 are installed. The motor 1 includes a fixed end 11 and an output end 12. The fixed end 11 is connected to the motor bracket 3 and the support part 4, and the output end 12 is connected to the fan 6, driving the fan 6 to rotate.

[0062] like Figure 1 and Figure 4 As shown, specifically, the front and rear sides of the volute 2 are provided with air inlets 21, and the fixed end 11 and the output end 12 of the motor 1 are respectively arranged facing the air inlets 21 on both sides. The end of the fixed end 11 is located at the air inlet 21, while the output end 12 is a certain distance away from the air inlet 21 on the opposite side.

[0063] The fixed end 11 of motor 1 passes through the mounting hole 311 of motor bracket 3. The protrusion 111 on the outer periphery of the fixed end 11 abuts against the mounting plate 31. The protrusion 111 is fixed to the mounting plate 31 by multiple screws, thus achieving the initial fixation of motor 1 and motor bracket 3. Then, the output end 12 of motor 1 passes through the through hole 61 of impeller 6. The output end 12 and the through hole 61 are interference-fitted, thus achieving the initial fixation of motor 1 and impeller 6. At the same time, the flange 121 of output end 12 fits against the surrounding plate 63 of impeller 6. The flange 121 is fixed to the surrounding plate 63 of impeller 6 by screws, thus achieving the two-stage fixing structure of output end 12 and impeller 6. This makes the output end 12 of motor 1 more secure to impeller 6. The output end 12 can drive impeller 6 to rotate while the fixed end 11 remains stationary, thereby achieving air intake.

[0064] During the process of installing the motor bracket 3 and the motor 1 into the volute 2, the connecting piece 322 of the motor bracket 3 will fit against the outside of the volute 2. At the same time, in order to achieve a more stable structure, a support part 4 will be installed at the air inlet 21 and connected to the fixed end 11 of the motor 1. The annular connecting part 42 of the support part 4 is connected to the outside of the volute 2 to limit the motor 1 in the axial and radial directions, thereby making the motor 1 more stable in the volute 2 and preventing it from shaking and generating noise.

[0065] Example 3

[0066] like Figures 3 to 6 As shown in this embodiment, a volute mounting assembly for a range hood is introduced, including a volute 2. A motor 1 and a fan 6 are installed inside the volute 2. The motor 1 includes an output end 12, which is rotatable and connected to the fan 6, driving the fan 6 to rotate. A through hole 61 is provided in the center of the fan 6. During the assembly process of the output end 12 of the motor 1 and the fan 6, the output end 12 of the motor 1 passes through the through hole 61 and is interference-fitted with the fan 6, thereby improving the assembly efficiency of the motor 1 and the fan 6.

[0067] like Figures 3 to 6 As shown in this embodiment, the wind turbine 6 has a protruding annular molded section 62 at its center. A through hole 61 is formed in the center of the annular molded section 62. The output end 12 of the motor 1 passes through the through hole 61, and the wall of the through hole 61 contacts the outer periphery of the output end 12, forming an interference fit. The annular molded section 62 is provided to ensure a gap between the through hole 61 and the surrounding plate 63. When the output end 12 of the motor 1 passes through the through hole 61, it forms an interference fit with the through hole 61, while the surrounding plate 63 can fit snugly against the output end 12, increasing the number of stress points and making the relationship between the motor 1 and the wind turbine 6 more stable.

[0068] In this embodiment, the output end 12 of the motor 1 is a cylindrical structure. The cross-section of the output end 12 gradually increases from the end of the output end 12 toward the middle of the motor 1. The output end 12 is provided with a first position. The cross-section between the first position and the middle of the motor 1 is larger than the area of ​​the through hole 61. The first position and any position in the middle of the motor 1 are matched with the through hole 61 to achieve an interference fit. The first position is set close to the middle of the motor 1, so that the output end 12 has enough volume to pass through the through hole 61, making the structure between the motor 1 and the impeller 6 more stable.

[0069] The output end 12 of the motor 1 is further provided with a flange 121 around its outer periphery. The impeller 6 includes a surrounding plate 63, which is positioned at the middle along the axial direction. The output end 12 of the motor 1 passes through the surrounding plate 63 and the through hole 61 in sequence, and the flange 121 is fitted against the surrounding plate 63. During the process of the motor 1 passing through the impeller 6, the output end 12 first passes through the surrounding plate 63 and then through the through hole 61. When the first position of the output end 12 is interference-fitted with the through hole 61, the flange 121 is fitted against the surrounding plate 63, and the output end 12 is fixedly connected to the impeller 6, ensuring that the output end 12 of the motor 1 and the impeller 6 form two fixed structures, which is more stable.

[0070] like Figure 1 , 3 to Figure 6 As shown, a second through hole 631 is formed in the center of the enclosure 63, and a gap is maintained between the second through hole 631 and the through hole 61. With this arrangement, the output end 12 of the motor 1 passes through the second through hole 631 and the through hole 61 in sequence. The cross-section of the first position of the output end 12 is equal to that of the through hole 61, forming an interference fit. At this time, the flange 121 fits against the enclosure 63, and then the flange 121 is fixed to the enclosure 63 with screws, thereby achieving the fixation of the motor 1 and the impeller 6. Furthermore, the aforementioned gap can be as large as possible, which can make the structure between the motor 1 and the impeller 6 more stable.

[0071] In this embodiment, air inlets 21 are provided on both sides of the volute 2. The motor 1 also includes a fixed end 11, which is connected to the output end 12. The fixed end 11 and the output end 12 face the air inlets 21 on both sides. Providing air inlets 21 on both the front and rear sides can increase the air intake. The fixed end 11 is non-rotatable and connected to the output end 12. The output end 12 is completely located inside the volute 2, while the end face of the fixed end 11 is flush with the air inlet 21 on the other side.

[0072] A motor bracket 3 is also provided at the end of the fixed end 11. The motor bracket 3 is located at the air inlet 21. The fixed end 11 of the motor 1 is fixedly connected to the motor bracket 3 to ensure that the motor 1 is located inside the volute 2. At the same time, the connecting piece 322 of the motor bracket 3 is connected to the outside of the volute 2. The motor bracket 3 is provided to ensure that the motor 1 is fixed inside the volute 2. At the same time, the fixed connection between the motor bracket 3 and the volute 2 allows the motor 1 to run smoothly inside the volute 2.

[0073] like Figures 3 to 6 As shown, the outer periphery of the fixed end 11 of the motor 1 is provided with multiple protrusions 111. The motor bracket 3 includes a mounting plate 31, which has mounting holes 311. The fixed end 11 of the motor 1 passes through the mounting holes 311, and the protrusions 111 are fitted against the mounting plate 31. During the assembly of the motor 1 and the motor bracket 3, the fixed end 11 of the motor 1 passes through the mounting holes 311 first, and the protrusions 111 fit against the mounting plate 31, which limits the movement of the motor 1. At the same time, the protrusions 111 are fixedly connected to the mounting plate 31 by screws. At this time, the fixed connection between the motor 1 and the motor bracket 3 is completed. Then, the output end 12 of the motor 1 is set towards the surrounding plate 63, passes through the second through hole 631 first, and then through the through hole 61. The flange 121 is fixed to the surrounding plate 63 by screws, thereby ensuring that the motor 1 is installed in the volute 2. The motor 1, the motor bracket 3, and the volute 2 are assembled. The output end 12 is interference-fitted with the impeller 6, which improves the assembly efficiency.

[0074] An air inlet ring 64 is provided at each of the air inlets 21 on both sides of the volute 2 to increase the air volume inside the volute 2.

[0075] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A motor mounting structure for a range hood, comprising a motor (1), a volute (2), and a motor bracket (3), wherein at least one side of the volute (2) is provided with an air inlet (21), characterized in that, The motor bracket (3) is recessed into the volute (2) from the air inlet (21), and the motor (1) is installed inside the volute (2) through the motor bracket (3); The air inlet (21) is provided with a support part (4) on its outer periphery. At least part of the support part (4) is connected to the motor bracket (3). The motor (1) abuts against the motor bracket (3) and at least one end is connected to the support part (4). The motor (1) includes a fixed end (11) and an output end (12). The fixed end (11) and the output end (12) are connected. The motor (1) is fixedly connected to the motor bracket (3) and the support part (4). The motor bracket (3) and the support part (4) are fixed on the volute (2) through the connecting piece (322) and the annular connecting part (42). The motor bracket (3) is fixedly assembled in the volute (2) through the air inlet (21). The support part (4) is then installed at the air inlet (21) to connect the end of the fixed end (11) of the motor (1) to the support part (4).

2. The motor mounting structure for a range hood according to claim 1, characterized in that, The support part (4) includes an annular connecting part (42), which fits against the outer periphery of the air inlet (21), and the extension end of the motor bracket (3) is connected to the annular connecting part (42).

3. The motor mounting structure of a range hood according to claim 1 or 2, characterized in that, The support part (4) also includes a circular base (41), which is spaced apart from the annular connecting part (42). At least one end of the motor (1) passes through the motor bracket (3), the outer periphery of the passing end abuts against the motor bracket (3), and the end of the passing end is connected to the circular base (41).

4. The motor mounting structure for a range hood according to claim 3, characterized in that, The annular connecting part (42) is connected to the circular base (41) by a plurality of evenly distributed support feet (43), which extend outward along the radial direction of the circular base (41).

5. The motor mounting structure of a range hood according to claim 1 or 2, characterized in that, The motor bracket (3) is evenly provided with a plurality of second support feet (32). The plurality of second support feet (32) are inclinedly extended toward the annular connecting part (42) and connected to the annular connecting part (42). The extended ends of the annular connecting part (42) and the second support feet (32) are attached to the outer periphery of the air inlet (21).

6. The motor mounting structure for a range hood according to claim 5, characterized in that, Each of the second support legs (32) has a connecting piece (322) at its extended end, which is attached to the outer periphery of the air inlet (21).

7. The motor mounting structure for a range hood according to claim 6, characterized in that, Each second support foot (32) is set opposite to or offset from the support foot (43) on the corresponding side.

8. The motor mounting structure for a range hood according to claim 3, characterized in that, The motor bracket (3) includes a mounting plate (31), which has a mounting hole (311). Multiple protrusions (111) are evenly distributed on the outer periphery of the fixed end (11) of the motor (1). The fixed end (11) passes through the mounting hole (311), and the protrusions (111) abut against the mounting plate (31).

9. The motor mounting structure for a range hood according to claim 4, characterized in that, The support foot (43) is a sheet material structure, and the annular connecting part (42) and the two adjacent support feet (43) form an auxiliary air intake (5).

10. A range hood, characterized in that, The range hood is equipped with a motor mounting structure for a range hood as described in any one of claims 1 to 9, and a fan wheel (6) is also installed inside the volute (2), with the output end (12) of the motor (1) and the fan wheel (6) being interference-fitted.

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