Water pump damping installation structure for range hood cleaning device and range hood

Abstract

The utility model relates to a kind of water pump damping mounting structure and range hood for range hood cleaning device, water pump damping mounting structure includes the fixed seat for installing water pump, the fixed seat includes the mounting plate of damping material and two are from fixed plate upwardly extending, and the vertical plate of the damping material of opposite arrangement, two vertical plates are all set up mounting hole, the main body of water pump is tightly fitted and installed in two described mounting holes, the periphery edge of the mounting hole of two vertical plates is set up multiple contraction notches sequentially arranged along circumference. Advantage lies in: it is convenient to fix water pump, and can effectively isolate vibration.

Description

Technical Field

[0001] This utility model relates to the technical field of cleaning devices for range hoods, and in particular to a water pump vibration damping installation structure for a range hood cleaning device and a range hood. Background Technology

[0002] Range hoods are kitchen appliances used to purify the kitchen environment. Currently, ultra-thin range hoods with minimal front-to-back depth are increasingly popular due to their space-saving advantages. Users have a growing demand for self-cleaning range hoods, but the internal space of existing ultra-thin range hoods is extremely limited. Traditional self-cleaning devices (such as nozzle assemblies, steam generators, water pumps, and water tanks) are often bulky or scattered, and simply cramming them into the machine significantly encroaches on the space of core functional components such as the air duct, motor, and control panel. The water pump is the core vibration source of the self-cleaning system. In the confined space and compact structure of the ultra-thin body, the vibration generated by the water pump lacks effective isolation and buffering. Vibration energy is more easily transmitted directly to the entire thin shell through rigid connections, causing significant structural resonance and noise, severely impacting the user experience. Existing solutions have failed to effectively solve the problem of vibration reduction and noise reduction of the water pump within limited space.

[0003] Therefore, the existing water pump vibration damping installation structure used in range hood cleaning devices needs further improvement. Utility Model Content

[0004] The first technical problem to be solved by this utility model is to provide a water pump vibration damping installation structure for a range hood cleaning device that is convenient for fixing the water pump and can effectively isolate vibration, in light of the current state of the technology.

[0005] The second technical problem to be solved by this utility model is to provide a range hood that applies the above-mentioned water pump vibration damping installation structure, in view of the current state of the prior art.

[0006] The technical solution adopted by this utility model to solve the first technical problem is: a water pump vibration damping installation structure for a range hood cleaning device, including a fixing base for installing the water pump. The fixing base includes a mounting plate of vibration damping material and two vertical plates of vibration damping material that extend upward from the fixing plate and are arranged opposite to each other. Mounting holes are provided on both vertical plates. The two ends of the main body of the water pump are tightly fitted into the two mounting holes. Multiple shrinkage notches arranged sequentially along the circumference are provided at the periphery of the mounting holes on the two vertical plates.

[0007] The aforementioned "vibration-damping materials" can be understood as materials with high damping characteristics that can convert mechanical vibrations into heat energy through intramolecular friction. Examples include nitrile rubber (NBR), silicone rubber, and thermoplastic polyurethane (TPU).

[0008] The aforementioned "tight fit installation" can be understood as an assembly method in which the mounting hole diameter is slightly smaller than the diameter of the part being installed, and radial clamping force is generated by the elastic deformation of the material.

[0009] The water pump vibration damping mounting structure utilizes mounting holes on two vibration-damping material uprights to directly fix both ends of the water pump body via a tight-fitting installation method. Multiple contraction notches around the mounting holes allow the uprights to have a certain degree of elastic deformation during installation, facilitating smooth insertion of the pump end. After insertion, the material's elastic recoil achieves self-locking. This structure eliminates the need for traditional, complex screws or clips, making installation extremely simple and efficient, especially suitable for operation within the space-constrained ultra-thin housing. The entire mounting base (mounting plate + uprights) uses vibration-damping materials (such as rubber, silicone, and other elastomers), fundamentally cutting off the rigid vibration transmission path between the water pump body and the metal casing. Vibration energy is largely absorbed and dissipated by the vibration-damping material. The vertical plate design with a contraction notch significantly enhances the local elasticity of the mounting hole area. This allows the multidimensional vibrations (especially high-frequency vibrations) generated by the water pump during operation to be effectively buffered and attenuated through the flexible deformation of the vertical plate itself, rather than being directly transmitted. This greatly reduces the efficiency of vibration energy transmission to the ultra-thin casing, effectively suppressing the overall structural resonance caused by water pump vibration and the resulting harsh noise, significantly improving the user experience. Furthermore, this highly integrated mounting structure (one-piece mounting base) has a compact layout and requires no additional fasteners for a snug fit, greatly saving the already limited internal space of the ultra-thin range hood and ensuring that the space for core functional components (air duct, motor, etc.) is not encroached upon.

[0010] Considering the common difference in shaft diameter between the two ends of a water pump (e.g., the motor end and the non-motor end), if the mounting hole diameters were the same, an additional adapter sleeve would be required, increasing cost and reducing assembly accuracy. Therefore, the two mounting holes have different diameters, each adapted to one end of the water pump. This structural design directly matches the different diameters at both ends of the water pump, eliminating assembly gaps, avoiding vibration amplification or uneven wear caused by dimensional mismatch, and improving structural adaptability.

[0011] As an improvement, the top surface of the mounting plate is also provided with reinforcing support ribs connecting the two upright plates. The reinforcing support ribs connect the two upright plates to form a stable triangular structure, which significantly improves the bending stiffness of the upright plates and prevents plastic deformation caused by vibration.

[0012] Considering that if the height of the reinforcing support rib is too low, the reinforcement effect will be insufficient, and if it is too high, it may interfere with the installation of the water pump or increase the space occupation, the height of the reinforcing support rib is in the range of 2-8mm.

[0013] As an improvement, the mounting plate is also provided with diagonally arranged screw holes for fixing the mounting plate to the component to be installed. The diagonally arranged screw holes achieve a balanced distribution of force, prevent local resonance of the fixing seat, and ensure stable anchoring of the vibration damping structure.

[0014] As an improvement, the top of the mounting plate is further provided with an upwardly protruding limiting support platform in the area corresponding to one end of the water pump. The limiting support platform supports the bottom of the end of the water pump that is installed in place on the fixing base. The limiting support platform provides auxiliary support at the bottom, shares the load of the upright plate, and prevents deformation of the mounting hole caused by the water pump sagging due to gravity.

[0015] As an improvement, the limiting support platform also has a stepped portion for restricting the axial movement of the water pump. The stepped portion forms an axial mechanical limit, which works in conjunction with the radial constraint of the mounting holes on the vertical plate to achieve full constraint of the water pump in multiple degrees of freedom, eliminating the risk of displacement.

[0016] As an improvement, a soundproof enclosure is also included, covering the water pump and the two uprights, and connected to the mounting plate of the fixed base. The soundproof enclosure covers the water pump and uprights, blocking the airborne sound transmission path, and forming a dual noise reduction effect of "vibration isolation + noise shielding" with the vibration damping structure. Furthermore, the soundproof enclosure is directly fixed to the mounting plate, which also avoids the introduction of vibration transmission through additional supports.

[0017] As an improvement, the top of the inner wall of the soundproof enclosure is provided with reinforcing ribs, and the wall of the soundproof enclosure is provided with a water pipe interface hole for water supply pipe and a heat dissipation hole.

[0018] The technical solution adopted by this utility model to solve the second technical problem is: a range hood, including a cleaning device, the cleaning device including a water pump, and also including the above-mentioned water pump vibration damping mounting structure for the range hood cleaning device.

[0019] Range hoods include:

[0020] The casing includes a left side panel and a right side panel facing each other, a front side panel and a rear side panel facing each other, and a top panel located at the top.

[0021] A fan system, located within the casing, includes a volute and an impeller located within the volute, the axis of which extends in the front-rear direction;

[0022] A cleaning device, located inside the housing, includes a water tank, a steam generator, and a nozzle assembly;

[0023] A vertical plane passing through the axis of the impeller is designated as a reference plane. An installation space for accommodating the cleaning device is defined within the housing, corresponding to the area between the annular wall of the volute and the left or right wall of the housing. The water tank, steam generator, and nozzle assembly of the cleaning device are located on the same side of the reference plane, and the water tank, steam generator, and nozzle assembly are arranged sequentially from top to bottom within the installation space, and are staggered in the vertical direction.

[0024] The "front and back direction" in the above "the axis of the impeller extends in the front and back direction" can be understood as the axis of the impeller extending horizontally in the front and back direction, or it can be a slight tilt angle relative to the horizontal direction (such as a tilt angle of less than 30°).

[0025] The aforementioned "misaligned arrangement" refers to the spatial arrangement of components where their projections in a certain direction are not completely overlapping or aligned, but rather offset or staggered. For example, from a top view, the center points of the water tank, steam generator, and nozzle assembly are not on the same vertical line; or from a side view, their front and rear edges are not on the same vertical plane. The purpose is to avoid interference, facilitate connection, or optimize space utilization. (For example, stacking three books, but each book is slightly moved forward or backward so that their edges are not aligned, is a simple example of a misaligned arrangement.)

[0026] The aforementioned "installation space" refers to the area within the casing, physically or structurally defined by specific boundaries (such as the volute annular wall, casing side walls, front and rear casing walls, top plate, bottom plate, etc.), used to accommodate and fix specific components or devices. It is not a pre-existing independent cavity, but rather a usable space enclosed by surrounding components.

[0027] The range hood utilizes the previously underutilized "unused" area between the fan casing's volute and the side wall of the housing as a dedicated installation space. The three core components of the cleaning system (water tank, steam generator, and nozzle assembly) are centrally arranged on the same side of the reference plane (the vertical plane of the impeller axis), using a staggered arrangement from top to bottom. This vertical stacking and staggered design minimizes the horizontal space occupied by the cleaning system, effectively avoiding encroachment on core functional areas such as airflow in the duct, motor cooling, and control panel, ensuring that the range hood's basic performance and reliability are not affected. The three components of the cleaning system are closely adjacent and staggered vertically; this compact structure itself facilitates the formation of a stable overall module. They are collectively housed within the relatively "rigid" space formed by the volute and the side wall of the housing, essentially utilizing the existing structure of the housing and volute as a support and constraint framework. This significantly enhances the structural stability and vibration resistance of the entire cleaning system within the housing, preventing the risk of component loosening. Furthermore, the cleaning components of the cleaning device are concentrated in a specific "spatial channel" on one side of the machine body and are clearly arranged vertically (water tank at the top, steam generator in the middle, and nozzles at the bottom). This layout provides clear positioning and sequence for production line assembly, significantly simplifying the assembly process and reducing assembly difficulty and labor costs. For users, key maintenance operations (such as adding water to the water tank, cleaning or disassembling the water box, and inspecting the steam generator and nozzles) are concentrated in a relatively open and easily accessible area, eliminating the need to disassemble multiple unrelated components or delve into the machine's interior to access a single part. This greatly enhances the user experience and the actual usability of the self-cleaning function.

[0028] As an improvement, the water tank is located at the bottom of the housing and fixed relative to the left or right side panel of the housing. The steam generator is located above the water tank and fixed relative to the front or rear side panel of the housing. The nozzle assembly is located above the steam generator and fixed relative to the volute. This structural design allows the water tank, steam generator, and nozzle assembly to be fixed to different structural wall panels (side panels, front and rear side panels) and the volute body of the housing, providing multi-point, distributed support and enhancing the stability and reliability of the entire cleaning system under vibration. Specifically, the water tank is fixed to the bottom of a sturdy side panel, ensuring good stability and facilitating water addition (if the design allows for bottom or side addition); the steam generator is fixed to the front / rear side panel, utilizing its vertical surface; the nozzle is fixed to the volute, ensuring precise positioning and allowing steam / water to directly act on the inner wall of the volute. The nozzle assembly is located above the steam generator and fixed to the volute, ensuring it is positioned closest to the cleaning target (inside the volute), shortening the spray path and improving cleaning efficiency. One of the most important advantages is that it further refines the specific positional relationships of "setting up sequentially from top to bottom".

[0029] To optimize the placement of the cleaning device given the availability of space on both sides of the volute, a first installation space is defined within the housing between the annular wall of the volute and the left side wall of the housing. A second installation space is defined within the housing between the annular wall of the volute and the right side wall of the housing. The first installation space is located on the side where the volute tongue is located. The water tank, steam generator, and nozzle assembly are located within the second installation space. Of the available space on both sides of the housing, the space on the non-volute tongue side is the more suitable location for the entire cleaning system.

[0030] As an improvement, the water tank, steam generator, and nozzle assembly gradually approach the reference surface from bottom to bottom. The components of the cleaning device gradually move away from the reference surface from bottom to top (or gradually approach the reference surface from top to bottom), forming an inclined or stepped layout. This fully utilizes the width of the installation space (near or far from the center of the volute), saving more lateral space than a completely vertical stack. Typically, the uppermost nozzle assembly needs to be close to the volute annular wall (i.e., close to the reference surface) to effectively spray into the volute interior. This layout allows the nozzles to be positioned relatively closer to the volute (reference surface), while the bottom water tank can utilize more outer space (away from the reference surface), shortening the spray distance from the nozzle to the inner wall of the volute and improving the impact and coverage of the cleaning medium. The inclined layout may also facilitate the natural routing of connecting pipelines (from the water pump to the steam generator, and from the steam generator to the nozzles).

[0031] As an improvement, it also includes an inverted L-shaped first mounting bracket fixed to the rear side panel of the housing and a water pump disposed on the first mounting bracket. The first mounting bracket includes a transversely extending horizontal frame plate and a vertical frame plate extending downward from the transverse frame plate. The steam generator is disposed on the transverse frame plate, and the water pump is disposed on the vertical frame plate. The water pump is located in the flow path between the water storage tank and the steam generator.

[0032] Compared with existing technologies, the advantages of this utility model are as follows: The water pump vibration damping mounting structure utilizes mounting holes on two vibration-damping material plates to directly fix both ends of the water pump body through a tight-fitting installation method. Combined with multiple contraction notches around the mounting holes, the plates possess a certain degree of elastic deformation capability during installation, facilitating smooth insertion of the water pump end. After insertion, the material's elastic recoil achieves self-locking. This structure eliminates the need for traditional complex screws or clips, making installation extremely simple and efficient, especially suitable for operation within the space-constrained ultra-thin machine body. The entire mounting base (mounting plate + upright plate) uses vibration-damping materials (such as rubber, silicone, and other elastomers), fundamentally cutting off the rigid vibration transmission path between the water pump body and the metal casing. Vibration energy is largely absorbed and dissipated by the vibration-damping material. The vertical plate design with a contraction notch significantly enhances the local elasticity of the mounting hole area. This allows the multidimensional vibrations (especially high-frequency vibrations) generated by the water pump during operation to be effectively buffered and attenuated through the flexible deformation of the vertical plate itself, rather than being directly transmitted. This greatly reduces the efficiency of vibration energy transmission to the ultra-thin casing, effectively suppressing the overall structural resonance caused by water pump vibration and the resulting harsh noise, significantly improving the user experience. Furthermore, this highly integrated mounting structure (one-piece mounting base) has a compact layout and requires no additional fasteners for a snug fit, greatly saving the already limited internal space of the ultra-thin range hood and ensuring that the space for core functional components (air duct, motor, etc.) is not encroached upon. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of the water pump vibration damping installation structure according to an embodiment of the present utility model;

[0034] Figure 2 This is an exploded view of the water pump vibration damping installation structure according to an embodiment of the present utility model;

[0035] Figure 3 A three-dimensional structural diagram of a water pump mounted on a fixed base according to an embodiment of this utility model;

[0036] Figure 4 This is a schematic diagram of the structure of the fixed base and the water pump in a separated state according to an embodiment of the present utility model;

[0037] Figure 5 This is a three-dimensional structural diagram of the fixing base according to an embodiment of the present utility model;

[0038] Figure 6 This is a three-dimensional structural diagram of the soundproof cover according to an embodiment of the present utility model;

[0039] Figure 7 This is a three-dimensional structural diagram of the range hood according to an embodiment of the present utility model;

[0040] Figure 8 This is a three-dimensional structural diagram of the range hood according to another embodiment of the present utility model;

[0041] Figure 9 This is a three-dimensional structural diagram of a range hood according to an embodiment of the present utility model. The front side panel, rear side panel, and top panel are omitted from the casing.

[0042] Figure 10 This is a front view of the range hood according to an embodiment of the present utility model. The front side panel, rear side panel, and top panel are omitted from the casing.

[0043] Figure 11 This is a three-dimensional structural diagram of the cleaning device according to an embodiment of the present utility model;

[0044] Figure 12 This is a three-dimensional structural diagram of the nozzle assembly according to an embodiment of the present utility model;

[0045] Figure 13 This is a cross-sectional perspective view of the nozzle assembly according to an embodiment of the present utility model;

[0046] Figure 14 This is a three-dimensional structural diagram of the second mounting bracket according to an embodiment of the present utility model;

[0047] Figure 15 This is an exploded view of the second mounting bracket according to an embodiment of the present utility model. Detailed Implementation

[0048] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0049] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0050] Figures 1-15This invention illustrates a preferred embodiment of the water pump vibration damping mounting structure for a range hood cleaning device and the range hood itself.

[0051] See Figures 1-6 The pump vibration damping mounting structure includes a mounting base 60 and a soundproof cover 70. The mounting base 60 is integrally injection molded from a soft rubber material such as nitrile rubber (NBR) and includes a mounting plate 61 and two vertically extending upright plates 62. The two upright plates 62 are arranged parallel to each other, with the spacing matching the length of the pump body (slightly smaller than the length of the pump body). Circular mounting holes 620 of different diameters are respectively opened in the center of the two upright plates 62. The larger hole connects to the water system, and the smaller hole connects to the electrical system. The larger hole has a diameter of 25mm, and the smaller hole has a diameter of 22.2mm. Multiple radial contraction notches 6201 are evenly distributed around the perimeter of the mounting holes 620 (the notch width is consistent with the thickness of the upright plate 62, and the notch depth is 2mm). During installation, the two ends of the pump body 33 can be aligned with the mounting holes 620, and axial pressure is applied to cause the upright plates 62 to elastically expand due to the contraction notches 6201, achieving a tight fit. After installation, the upright plates 62 retract and clamp the pump shaft shoulder, forming a radial self-locking mechanism. The design of the above-mentioned shrinkage notch 6201 forms a variable diameter constraint section around the fixing hole. The small diameter is used to fix the water pump 33, and the large diameter is used to reserve the deformation amount when the water pump 33 is working, so that the fixing seat 60 does not produce large torsional deformation.

[0052] The top surface of the mounting plate 61 is provided with reinforcing support ribs 611 (5mm high) connecting the two upright plates 62, and the ribs extend along the line connecting the two upright plates 62. There are two reinforcing support ribs 611, which are located on the left and right sides of the upright plates 62. The two corners of the mounting plate 61 are provided with diagonally arranged screw connection holes 612, which are fixed to the mounting bracket of the range hood by screws.

[0053] The mounting plate 61 has a molded limiting support platform 613 on the top surface near the larger mounting hole 620. Its top surface can be a flat surface or an arc-shaped support surface that matches the bottom contour of the water pump 33. The front end is provided with a vertical step 614 (3mm high) to abut against the end face of the water pump 33 to limit axial displacement.

[0054] Since the water pump 33 needs to pump water, it will generate not only vibration but also relatively high-frequency noise during operation, affecting the user experience. Therefore, the water pump vibration damping installation structure in this embodiment also includes a soundproof cover 70. The soundproof cover 70 covers the water pump 33 and is installed on the mounting base 60. The installation and fixing method can be adhesive or similar. The soundproof cover 70 serves to insulate sound. At the same time, the soundproof cover 70 is provided with water pipe inlet and outlet holes and heat dissipation holes 73. Reinforcing ribs 71 are also provided on the inner side wall of the soundproof cover 70 to improve the structural strength of the soundproof cover 70 and optimize its shape to improve the sound insulation.

[0055] The water pump vibration damping mounting structure utilizes mounting holes 620 on two vibration damping material upright plates 62 to directly fix both ends of the water pump 33 body through a tight-fit installation method. The design incorporates multiple contraction notches 6201 around the mounting holes 620, allowing the upright plates 62 to have a certain degree of elastic deformation capability during installation, facilitating the smooth insertion of the water pump 33 ends. After insertion, the material's elastic recoil achieves self-locking. This structure eliminates the need for traditional complex screws or clips, making installation extremely simple and efficient, especially suitable for operation within the space-constrained ultra-thin machine body. The entire mounting base 60 (mounting plate 61 + upright plate 62) uses vibration damping materials (such as rubber, silicone, and other elastomers), fundamentally cutting off the rigid vibration transmission path between the water pump 33 body and the metal casing. Vibration energy is largely absorbed and dissipated by the vibration damping material. The design of the upright plate 62 with the contraction notch 6201 significantly enhances the local elasticity of the mounting hole 620 area. This allows the multidimensional vibrations (especially high-frequency vibrations) generated by the water pump 33 during operation to be effectively buffered and attenuated through the flexible deformation of the upright plate 62 itself, rather than being directly transmitted. This greatly reduces the efficiency of vibration energy transmission to the ultra-thin casing, effectively suppressing the resonance of the entire machine structure caused by the vibration of the water pump 33 and the resulting harsh noise, significantly improving the user experience. In addition, the installation structure is highly integrated (integrated mounting base 60), with a compact layout. The tight fit installation requires no additional fasteners, greatly saving the already cramped internal space of the ultra-thin range hood and ensuring that the space for core functional components (air duct, motor, etc.) is not encroached upon.

[0056] See Figures 7-15 The range hood in this embodiment adopts an ultra-thin, flat design, with the casing 10 having a rectangular structure with consistent front and rear dimensions. The casing 10 is formed by a left side plate 11, a right side plate 12, a vertically extending front side plate 13 and rear side plate 14, and a top plate 15. The fan system 20 is centrally located inside the casing 10, including a volute 21 and a built-in impeller 22. The axis of the impeller 22 extends horizontally in the front-to-back direction (with an angle of less than 30° to the horizontal plane). The vertical plane passing through the axis of the impeller 22 is defined as the reference plane S. Figure 10 (As shown by the dashed line in the middle), this plane divides the internal space of the housing 10 into left and right symmetrical regions.

[0057] In this embodiment, the housing 10 defines a first installation space A between the annular wall 211 of the volute 21 and the left side plate 11, and a second installation space B between the annular wall 211 of the volute 21 and the right side plate 12. The first installation space A corresponds to the side where the volute tongue of the volute 21 is located, and the entire cleaning device is centrally arranged in the second installation space B.

[0058] The cleaning device includes a nozzle assembly, a steam generator 32 and a water tank 31 arranged in a staggered manner from top to bottom. All three are located on the same side (right side) of the reference plane S and are all accommodated in the gap between the annular wall 211 of the volute 21 and the right side plate 12.

[0059] like Figure 9 and 10 As shown, the water tank 31, steam generator 32, and nozzle assembly are offset in a stepped manner in the vertical direction. Specifically, the water tank 31 is located on the outermost side (farthest from the reference plane S), the steam generator 32 is centered and recessed towards the reference plane S, and the nozzle assembly is closest to the reference plane S. From a top-down view, the central axes of the three are not on the same straight line perpendicular to the ground; the projection of the water tank 31 is furthest to the right, and the projection of the nozzle assembly is furthest to the left (closest to the vertical plane where the center line of the volute 21 is located).

[0060] The water storage tank 31 is installed at the bottom of the housing 10 and closely attached to the inner wall of the right side plate 12. Specifically, the side wall of the water storage tank 31 can be detachably locked directly to the left side plate 11 for lateral fixation. The right side plate 12 of the housing 10 (or the left side plate 11 if it is installed there) can have an operation port for removing and installing the water storage tank 31 (not shown in the attached drawings). The inverted L-shaped first mounting bracket 40 is vertically fixed to the inner wall of the rear side plate 14 of the housing 10 by bolts. The first mounting bracket 40 includes a horizontal bracket plate 41 and a vertical bracket plate 42. The steam generator 32 is horizontally installed on the horizontal bracket plate 41 and is double-fixed by claws and bolts. The water pump 33 is installed on the vertical bracket plate 42 through the aforementioned vibration damping fixing seat 60 and is located directly below the steam generator 32. The water inlet of the water pump 33 is connected to the water outlet valve of the water storage tank 31 through a hose, and the water outlet is connected to the water inlet of the steam generator 32, forming a complete flow path.

[0061] The nozzle assembly is mounted on the volute 21 via a second mounting bracket 50. Specifically, the second mounting bracket 50 is generally inverted U-shaped, spanning the volute 21. It includes a front frame plate 51 and a rear frame plate 52 facing each other, and a horizontal frame plate 53 connecting the front frame plate 51 and the rear frame plate 52. The front frame plate 51 can be fixed to the front cover plate 212 of the volute 21 with screws, and the rear frame plate 52 can be fixed to the rear cover plate 213 of the volute 21 with screws. The horizontal frame plate 53 can abut against the outer side of the annular wall 211 of the volute 21 (with a slight gap, or it can abut against the annular wall 211 of the volute 21). The nozzle assembly includes a rotary motor and a spray pipe 34. The rotary motor is mounted on top of the horizontal frame plate 53 and is covered by a protective cover 36. The spray pipe 34 is located below the horizontal frame plate 53 and can be connected to an arc-shaped swing arm 351. The shaft of this arc-shaped swing arm passes vertically through the shaft hole of the horizontal frame plate 53 and is coupled to the output shaft of the motor. The steam inlet of the spray pipe 34 is connected to the outlet of the steam generator 32 via a high-temperature resistant hose.

[0062] The second mounting bracket 50 includes a detachable first frame 501 and a second frame 502. The first frame 501 is generally L-shaped and includes the aforementioned rear frame plate 52 and a portion of the horizontal frame plate 53. The second frame 502 is also generally L-shaped and includes the aforementioned front frame plate 51 and a portion of the horizontal frame plate 53. The top of the first frame 501 has an upwardly extending first vertical edge 5011, and the top of the second frame 502 has an upwardly extending second vertical edge 5021. The first vertical edge 5011 and the second vertical edge 5021 can be fitted together and connected by corresponding buckles 5022 and holes 5012 to form a detachable connection.

[0063] This embodiment of the range hood utilizes the previously underutilized "unused" area between the fan housing 21's ring wall 211 and the side wall of the housing 10 as a dedicated installation space. The three core components of the cleaning device (water tank 31, steam generator 32, and nozzle assembly) are centrally arranged on the same side of the reference plane (the vertical plane of the impeller 22 axis), and staggered from top to bottom. This vertical stacking and staggered design minimizes the horizontal space occupied by the cleaning system, effectively avoiding encroachment on core functional areas such as airflow in the duct, motor cooling, and control board, ensuring that the basic performance and reliability of the range hood are not affected. The three components of the cleaning device are closely adjacent and staggered in the vertical direction; this compact structure itself facilitates the formation of a stable overall module. They are collectively housed within the relatively "rigid" space formed by the fan housing 21 and the side wall of the housing 10, effectively utilizing the existing structure of the housing 10 and fan housing 21 as a support and constraint frame. This greatly enhances the structural stability and vibration resistance of the entire cleaning system within the housing 10, avoiding the risk of component loosening. Furthermore, the cleaning components of the cleaning device are concentrated in a specific "spatial channel" on one side of the machine body and are clearly arranged vertically (water tank 31 at the top, steam generator 32 in the middle, and nozzles at the bottom). This layout provides clear positioning and sequence for production line assembly, significantly simplifying the assembly process and reducing assembly difficulty and labor costs. For users, key maintenance operations (such as adding water to the water tank 31, cleaning or disassembling the water box, and inspecting the steam generator 32 and nozzles) are concentrated in a relatively open and easily accessible area, eliminating the need to disassemble multiple unrelated components or delve into the machine's interior to access a single part, greatly improving the user experience and the actual usability of the self-cleaning function.

Claims

1. A water pump vibration damping mounting structure for a range hood cleaning device, comprising a mounting base (60) for mounting a water pump (33), characterized in that: The mounting base (60) includes a mounting plate (61) of vibration damping material and two vertical plates (62) of vibration damping material that extend upward from the mounting plate and are arranged opposite each other. The two vertical plates (62) are provided with mounting holes (620). The two ends of the main body of the water pump (33) are tightly fitted into the two mounting holes (620). The mounting holes (620) of the two vertical plates (62) are provided with a plurality of shrinkage notches (6201) arranged sequentially in the circumferential direction at the periphery of the mounting holes (620).

2. The water pump vibration damping installation structure for the range hood cleaning device according to claim 1, characterized in that: The two mounting holes (620) have different diameters and are adapted to the two ends of the water pump (33).

3. The water pump vibration damping installation structure for the range hood cleaning device according to claim 1, characterized in that: The top surface of the mounting plate (61) is also provided with reinforcing support ribs (611) that connect the two upright plates (62).

4. The water pump vibration damping installation structure for the range hood cleaning device according to claim 3, characterized in that: The height of the reinforcing support rib (611) ranges from 2 to 8 mm.

5. The water pump vibration damping installation structure for the range hood cleaning device according to claim 1, characterized in that: The mounting plate (61) is also provided with diagonally arranged screw connection holes (612) for fixing the mounting plate (61) to the component to be installed.

6. The water pump vibration damping installation structure for the range hood cleaning device according to claim 1, characterized in that: The top of the mounting plate (61) is provided with an upwardly protruding limiting support platform (613) in the area corresponding to one end of the water pump (33), and the limiting support platform (613) is supported on the bottom of one end of the water pump (33) installed on the fixed seat (60).

7. The water pump vibration damping installation structure for the range hood cleaning device according to claim 6, characterized in that: The limiting support platform (613) also has a step (614) for limiting the axial movement of the water pump (33).

8. The water pump vibration damping mounting structure for the range hood cleaning device according to any one of claims 1 to 7, characterized in that: It also includes a soundproof cover (70) that covers the water pump (33) and the two uprights (62) and is connected to the mounting plate (61) of the fixed base (60).

9. The water pump vibration damping mounting structure for the range hood cleaning device according to claim 8, characterized in that: The top of the inner wall of the soundproof cover (70) is provided with reinforcing ribs (71), and the wall of the soundproof cover (70) is provided with a water pipe interface hole (72) through which a water supply pipe passes and a heat dissipation hole (73).

10. A range hood, comprising a cleaning device, said cleaning device including a water pump (33), characterized in that: It also includes a water pump vibration damping mounting structure for the range hood cleaning device according to any one of claims 1 to 9.

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