Fan module of range hood and medium-island range hood with fan module

By designing an installation frame in the central island smoke hood to increase the load-bearing area of ​​the volute fan, and by utilizing the opening structure of the smoke inlet chamber to facilitate the easy assembly and disassembly of the volute fan, the problems of easy damage and difficult maintenance of the fan are solved, reducing the chance of damage and maintenance costs.

CN224283036UActive Publication Date: 2026-05-26柯剑飞
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
柯剑飞
Filing Date
2025-07-14
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing central island smoke machine's fan structure is prone to damage and difficult to maintain, requiring the removal of the entire cylindrical outer shell for inspection, which increases maintenance costs.

Method used

Design a fan module for a range hood, using a mounting frame to increase the load-bearing area of ​​the volute fan, and using an opening structure in the smoke inlet chamber to facilitate the easy assembly and disassembly of the volute fan, simplifying the maintenance process.

Benefits of technology

This reduces the chance of damage to the volute fan, simplifies the difficulty of inspection and maintenance, and lowers the cost of equipment installation and maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The fan module of the range hood comprises a volute fan, and an assembling assembly which can be detachably separated from the range hood and is used for installing and fixing the volute fan on the range hood is arranged on the outer side of the volute fan. The assembling assembly comprises a connecting flange arranged on the outer side of the air outlet end of the volute fan and an installing frame used for bearing the connecting flange, the installing frame is arranged on the outer side of the air outlet end of the volute fan in a sleeving mode, a fixing structure used for enabling the installing frame to be hung on the range hood is arranged on the installing frame, and the installing frame can increase the stress area of the volute fan and improve the reliability of the volute fan. According to the range hood, the volute fan is arranged in the smoke inlet cavity, the chance of structural damage of the volute fan is reduced, the volute fan can enter or leave the smoke inlet cavity through the opening structure below the smoke inlet cavity, when the volute fan needs to be overhauled and maintained, other positions of the range hood do not need to be disassembled and assembled, the disassembly and assembly difficulty of the volute fan is simplified, and therefore the equipment installation cost and the overhaul and maintenance cost are reduced.
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Description

Technical Field

[0001] This utility model relates to the technical field of range hoods, specifically to a fan module for a range hood and a central island range hood having the same module. Background Technology

[0002] Island range hoods are a type of range hood that adapts to various kitchen designs and are commonly found in open-plan, Western-style kitchens, or kitchens that seek a unique layout.

[0003] Patent document CN222210441U discloses "a cylindrical island range hood", the specific content of which includes "a cylindrical island range hood, including a cylindrical outer shell, a support frame installed inside the cylindrical outer shell, a fan installed on the support frame, the fan being electrically connected to an external power source, an electric push rod installed on the support frame, the electric push rod being electrically connected to an external power source, the electric push rod including a movable rod, the movable rod being extendable and retractable under power control, the movable rod being fixedly connected to a connecting frame, the space enclosed by the connecting frame being a hollow structure, and the connecting frame being fixedly connected to an air inlet".

[0004] The fan is fixed to the support frame with bolts, which concentrates the stress points on the fan and makes it easy to damage the fan structure. At the same time, since the fan is installed on the support frame, the cylindrical outer shell needs to be removed when the fan needs to be inspected and maintained, which is relatively difficult and increases the cost of inspection and maintenance.

[0005] Therefore, further improvements are needed. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a fan module for a smoke hood. The mounting frame can increase the stress area of ​​the volute fan and reduce the chance of structural damage to the volute fan.

[0007] The purpose of this utility model is achieved as follows:

[0008] A fan module for a range hood includes a volute fan. The outer side of the volute fan is provided with an assembly component that can be detached from the range hood and is used to install and fix the volute fan on the range hood. The assembly component includes a connecting flange disposed on the outer side of the air outlet end of the volute fan and a mounting frame for supporting the connecting flange. The mounting frame is sleeved on the outer side of the air outlet end of the volute fan and is provided with a fixing structure for suspending it on the range hood.

[0009] As a specific embodiment, the mounting frame includes two symmetrically arranged motor mounting plates, which are U-shaped. The two motor mounting plates are respectively snapped onto the outside of the air outlet of the volute fan along opposite directions. The connecting flange is connected and fixed to the two motor mounting plates by screws. The mounting frame is connected and fixed to the range hood by screws.

[0010] This utility model also provides a central island smoke hood, including a smoke collection hood, a smoke pipe assembly, and a fan module of the smoke hood. The inner side of the smoke collection hood has a smoke inlet chamber. The volute fan is fixedly installed on the upper side of the smoke inlet chamber by an assembly assembly. The lower side of the smoke collection hood is provided with an opening structure for the volute fan to enter or exit the smoke inlet chamber vertically. The volute fan can enter or exit the smoke inlet chamber through the opening structure below the smoke inlet chamber. When the volute fan needs to be inspected and maintained, there is no need to disassemble other parts of the smoke hood, which simplifies the disassembly and assembly difficulty of the volute fan and reduces the cost of equipment installation and maintenance.

[0011] As a specific embodiment, the smoke pipe assembly includes an outer smoke pipe and an inner smoke pipe. The outer smoke pipe is positioned and fitted with the outer side of the smoke inlet cavity. The outer smoke pipe is sleeved on the outer side of the inner smoke pipe and can form different relative positions in the vertical direction so that the smoke pipe assembly can form different heights. The outer side of the smoke inlet cavity is provided with a supporting protrusion for supporting the outer smoke pipe.

[0012] As a specific embodiment, the air outlet of the volute fan is connected to the upper opening of the smoke inlet chamber, and a sealing gasket is provided between the air outlet of the volute fan and the upper opening of the smoke inlet chamber. The sealing gasket is tightly fitted to the upper side of both the volute fan and the smoke inlet chamber.

[0013] As a specific embodiment, the bottom of the smoke hood is provided with a smoke inlet corresponding to the position below the volute fan, and the volute fan can enter or leave the smoke inlet chamber vertically through the smoke inlet.

[0014] As a specific embodiment, a detachable filter plate is connected to the smoke inlet on the smoke collection hood. The filter plate is installed and cooperates with the smoke collection hood through a limiting structure. The bottom and periphery of the smoke collection hood are planar.

[0015] As a specific embodiment, the inner side of the smoke pipe assembly has a smoke exhaust chamber located above the smoke inlet chamber, and the inner side of the smoke exhaust chamber is provided with several sets of hangers, with the top outer side of the smoke inlet chamber connected and fixed to the bottom of the hangers.

[0016] As a specific embodiment, the hanger includes a first vertical rod, a second vertical rod, and a connecting block. The vertical projections of the first and second vertical rods are respectively right angles of similar size. Several positioning holes are distributed vertically on the first and second vertical rods. The positioning holes of the first and second vertical rods can be aligned and fixed by screws. Aligning different numbers of positioning holes of the first and second vertical rods can enable the first and second vertical rods to form hanger structures with different total heights along the vertical direction. The connecting block is respectively set at the upper and lower ends of the hanger structure. The connecting block includes a vertical plate and a horizontal plate. The vertical plate is connected and fixed to the hanger structure by screws. The horizontal plate of the upper connecting block is connected and fixed to the smoke pipe assembly by screws. The horizontal plate of the lower connecting block is connected and fixed to the top outer side of the smoke inlet chamber by screws.

[0017] The beneficial effects of this utility model are:

[0018] 1. The mounting frame can increase the stress-bearing area of ​​the volute fan and reduce the chance of structural damage to the volute fan.

[0019] 2. The volute fan can enter or exit the smoke inlet chamber through the opening structure below the smoke inlet chamber. When the volute fan needs to be inspected and maintained, there is no need to disassemble other parts of the smoke fan, which simplifies the disassembly and assembly of the volute fan and reduces the cost of equipment installation and maintenance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the fan module in an embodiment of the present invention.

[0021] Figure 2 This is an exploded view of the fan module in an embodiment of the present invention.

[0022] Figure 3 This is a cross-sectional schematic diagram of the island smoke machine in an embodiment of this utility model.

[0023] Figure 4 This is an exploded view of the island smoke machine in an embodiment of the present invention. Figure 1 .

[0024] Figure 5 This is an exploded view of the island smoke machine in an embodiment of the present invention. Figure 2 .

[0025] Figure 6 This is an exploded view of the island smoke machine in an embodiment of the present invention. Figure 3 .

[0026] Figure 7 This is an exploded view of the island smoke machine in an embodiment of the present invention. Figure 4 .

[0027] Figure 8 This is a schematic diagram of the island smoke machine in an embodiment of the present utility model. Figure 1 .

[0028] Figure 9 This is a schematic diagram of the island smoke machine in an embodiment of the present utility model. Figure 2 .

[0029] Figure 10 This is an enlarged view of embodiment A of the present invention.

[0030] Figure 11 This is an enlarged view of embodiment B of the present invention.

[0031] Figure 12 This is an enlarged view of embodiment C of this utility model. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] See Figure 1 , Figure 2 The fan module of this range hood includes a volute fan 1. The outer side of the volute fan 1 is provided with an assembly component that can be detached from the range hood and is used to install and fix the volute fan 1 on the range hood. The assembly component includes a connecting flange 11 set on the outer side of the air outlet end of the volute fan 1 and a mounting frame 3 for supporting the connecting flange 11. The mounting frame 3 is fitted onto the outer side of the air outlet end of the volute fan 1. The mounting frame 3 is provided with a fixing structure for suspending it on the range hood. The mounting frame 3 can increase the stress area of ​​the volute fan 1 and reduce the chance of structural damage to the volute fan 1.

[0034] Furthermore, the mounting frame 3 includes two symmetrically arranged motor mounting plates 31, which are U-shaped. The two motor mounting plates 31 are respectively snapped onto the outside of the air outlet of the volute fan 1 along opposite directions. The connecting flange 11 is connected and fixed to the two motor mounting plates 31 by screws. The mounting frame 3 is connected and fixed to the smoke machine by screws, so that the mounting frame 3 can be more easily installed and matched with the volute fan 1.

[0035] See Figures 3-12 This utility model also provides a central island smoke hood, including a smoke collection hood 2, a smoke pipe assembly, and a fan module of the smoke hood. The inner side of the smoke collection hood 2 has a smoke inlet chamber 21. The volute fan 1 is fixedly installed on the upper side of the smoke inlet chamber 21 by an assembly assembly. The lower side of the smoke collection hood 2 is provided with an opening structure for the volute fan 1 to enter or leave the smoke inlet chamber 21 vertically. The volute fan 1 can enter or leave the smoke inlet chamber 21 through the opening structure below the smoke inlet chamber 21. When the volute fan 1 needs to be inspected and maintained, there is no need to disassemble or assemble other parts of the smoke hood, which simplifies the disassembly and assembly difficulty of the volute fan 21, thereby reducing the cost of equipment installation and maintenance.

[0036] Furthermore, the smoke pipe assembly includes an outer smoke pipe 52 and an inner smoke pipe 53. The outer smoke pipe 52 is positioned and fitted with the outer side of the smoke inlet cavity 21. The outer smoke pipe 52 is sleeved on the outer side of the inner smoke pipe 53 and can form different relative positions in the vertical direction, so that the smoke pipe assembly can form different heights. The outer side of the smoke inlet cavity 21 is provided with a supporting protrusion 211 for supporting the outer smoke pipe 52, so that the height of the smoke pipe assembly can be extended or retracted. During the packaging and transportation process, the modular installation mechanism of the smoke machine can be placed in the internal space of the smoke pipe assembly. At the same time, by shrinking the height of the smoke pipe assembly, the space occupied by the product is relatively reduced, thereby reducing the cost of packaging and transportation.

[0037] Furthermore, the air outlet of the volute fan 1 is connected to the upper opening of the smoke inlet chamber 21. A sealing gasket 4 is provided between the air outlet of the volute fan 1 and the upper opening of the smoke inlet chamber 21. The sealing gasket 4 is tightly fitted to the upper side of the volute fan 1 and the smoke inlet chamber 21 respectively. The sealing gasket 4 can reduce the chance of air leakage at the gap between the volute fan 1 and the smoke inlet chamber 21.

[0038] Furthermore, the bottom of the fume hood 2 is provided with a smoke inlet 22 corresponding to the position below the volute fan 1. The volute fan 1 can enter or leave the smoke inlet chamber 21 vertically through the smoke inlet 22. The smoke inlet 22 can both extract oil fumes and allow the volute fan 1 to enter or leave, simplifying the smoke inlet structure of the fume hood. There is no need to open the smoke inlet chamber 21 at other positions of the fume hood 2, thus reducing production costs.

[0039] Furthermore, a detachable filter plate 23 is connected to the smoke hood 2 at the position corresponding to the smoke inlet 22. The filter plate 23 is installed and cooperates with the smoke hood 2 through a limiting structure, so that the filter plate 23 can be quickly disassembled and assembled with the smoke hood 2, thereby simplifying the disassembly and assembly process of the volute fan 1.

[0040] The bottom and perimeter of the smoke hood 2 are flat, making the overall appearance of the smoke hood more aesthetically pleasing and the bottom of the smoke hood 2 easier to clean.

[0041] Furthermore, the inner side of the flue assembly has an exhaust chamber 51 above the smoke inlet chamber 21. Several sets of hangers 6 are provided on the inner side of the exhaust chamber 51. The top outer side of the smoke inlet chamber 21 is connected and fixed to the bottom of the hangers 6. The module formed by the combination of the smoke hood 2 and the volute fan 1 is quickly installed and fixed through the hangers 6.

[0042] Furthermore, the hanger 6 includes a first vertical rod 61, a second vertical rod 62, and a connecting block 63. The vertical projections of the first vertical rod 61 and the second vertical rod 62 are respectively right angles of similar size, so that the first vertical rod 61 and the second vertical rod 62 have good structural strength and are not easily deformed under stress.

[0043] The first vertical rod 61 and the second vertical rod 62 are each provided with a number of positioning holes 64 distributed vertically. The positioning holes 64 of the first vertical rod 61 and the positioning holes 64 of the second vertical rod 62 can be aligned and fixed by screws. Aligning different numbers of positioning holes 64 of the first vertical rod 61 and the positioning holes 64 of the second vertical rod 62 can make the first vertical rod 61 and the second vertical rod 62 form a hanging rod structure with different total heights in the vertical direction. This allows users to adjust the installation height of the modular installation mechanism of the range hood according to their needs, and can adapt to more different application scenarios.

[0044] Connecting blocks 63 are respectively disposed at the upper and lower ends of the suspension rod structure. The connecting block 63 includes a vertical plate and a horizontal plate. The vertical plate is connected and fixed to the suspension rod structure by screws. The horizontal plate of the upper connecting block 63 is connected and fixed to the smoke pipe assembly by screws. The horizontal plate of the lower connecting block 63 is connected and fixed to the top outer side of the smoke inlet chamber 21 by screws. The connecting block 63 makes it easier to install and fix the first vertical rod 61 and the second vertical rod 62 to the smoke pipe assembly and the top outer side of the smoke inlet chamber 21. At the same time, the connecting block 63 and the first vertical rod 61 and the second vertical rod 62 are processed as different parts, which can reduce the difficulty of processing.

[0045] The above embodiments are merely preferred embodiments of this utility model, and other implementations are also possible. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model, and all such equivalent modifications or substitutions are included within the scope set forth in the claims of this application.

Claims

1. A fan module for a range hood, characterized in that, The device includes a volute fan (1), and the outer side of the volute fan (1) is provided with an assembly assembly that can be detached from the smoke machine and is used to install and fix the volute fan (1) on the smoke machine. The assembly assembly includes a connecting flange (11) provided on the outer side of the air outlet end of the volute fan (1) and an installation frame (3) for supporting the connecting flange (11). The installation frame (3) is fitted onto the outer side of the air outlet end of the volute fan (1), and the installation frame (3) is provided with a fixing structure for suspending it on the smoke machine.

2. The fan module of the smoke hood according to claim 1, characterized in that: The mounting frame (3) includes two symmetrically arranged motor mounting plates (31). The motor mounting plates (31) are U-shaped. The two motor mounting plates (31) are respectively snapped onto the outside of the air outlet of the volute fan (1) along opposite directions. The connecting flange (11) is connected and fixed to the two motor mounting plates (31) by screws. The mounting frame (3) is connected and fixed to the smoke machine by screws.

3. A central island smoke machine, characterized in that, The smoke collection hood (2), the smoke pipe assembly, and the fan module of the smoke machine according to claim 1 or 2 are included. The inner side of the smoke collection hood (2) has a smoke inlet chamber (21). The volute fan (1) is fixedly installed on the upper side of the smoke inlet chamber (21) by the assembly assembly. The lower side of the smoke collection hood (2) is provided with an opening structure for the volute fan (1) to enter or leave the smoke inlet chamber (21) vertically.

4. The island-style smoke machine according to claim 3, characterized in that: The smoke pipe assembly includes an outer smoke pipe (52) and an inner smoke pipe (53). The outer smoke pipe (52) is positioned and fitted with the outer side of the smoke inlet cavity (21). The outer smoke pipe (52) is sleeved on the outer side of the inner smoke pipe (53) and can form different relative positions in the vertical direction so that the smoke pipe assembly forms different heights. The outer side of the smoke inlet cavity (21) is provided with a supporting protrusion (211) for supporting the outer smoke pipe (52).

5. The island-style smoke machine according to claim 3, characterized in that: The air outlet of the volute fan (1) is connected to the upper opening of the smoke inlet chamber (21). A sealing gasket (4) is provided between the air outlet of the volute fan (1) and the upper opening of the smoke inlet chamber (21). The sealing gasket (4) is tightly fitted to the upper side of the volute fan (1) and the smoke inlet chamber (21).

6. The island-style smoke machine according to claim 3, characterized in that: The bottom of the smoke hood (2) is provided with a smoke inlet (22) corresponding to the position below the volute fan (1), and the volute fan (1) can enter or leave the smoke inlet chamber (21) vertically through the smoke inlet (22).

7. The island-style smoke machine according to claim 6, characterized in that: The smoke hood (2) is connected to a filter plate (23) that can be detached from the smoke inlet (22). The filter plate (23) is installed and cooperates with the smoke hood (2) through a limiting structure. The bottom of the smoke hood (2) and its periphery are planar.

8. The island-style smoke machine according to claim 3, characterized in that: The inner side of the smoke pipe assembly has a smoke exhaust chamber (51) above the smoke inlet chamber (21). The inner side of the smoke exhaust chamber (51) is provided with several sets of hangers (6). The top outer side of the smoke inlet chamber (21) is connected and fixed to the bottom of the hangers (6).

9. The island-style smoke machine according to claim 8, characterized in that: The hanger (6) includes a first vertical rod (61), a second vertical rod (62), and a connecting block (63). The vertical projections of the first vertical rod (61) and the second vertical rod (62) are respectively right angles of similar size. Several positioning holes (64) are distributed vertically on the first vertical rod (61) and the second vertical rod (62). The positioning holes (64) of the first vertical rod (61) and the positioning holes (64) of the second vertical rod (62) can be aligned and fixed by screws. Different numbers of positioning holes (64) on the first vertical rod (61) can be connected to the connecting block (63). 4) Aligning with the positioning hole (64) of the second vertical rod (62) enables the first vertical rod (61) and the second vertical rod (62) to form a hanging rod structure with different total heights in the vertical direction. The connecting blocks (63) are respectively set at the upper and lower ends of the hanging rod structure. The connecting blocks (63) include a vertical plate and a horizontal plate. The vertical plate is fixed to the hanging rod structure by screws. The horizontal plate of the upper connecting block (63) is fixed to the smoke pipe assembly by screws. The horizontal plate of the lower connecting block (63) is fixed to the top outer side of the smoke inlet chamber (21) by screws.