A small-sized smoke machine
By designing the fan housing and electrical control box into a single structure, the problems of large size and loose structure of traditional range hoods are solved, achieving miniaturization and efficient assembly, and improving product reliability and compactness.
Patent Information
- Application Number
- CN202521333313.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-10
- Estimated Expiration
- 2035-06-26
AI Technical Summary
The traditional split design of range hoods results in a large size and loose structure, making it difficult to meet the demand for high suction power in a small size. In addition, the assembly is complicated, which increases labor costs and may cause cable wear and poor contact problems.
The fan housing and electrical control box are designed as a single unit and manufactured using a one-piece molding process. Part of the wall panel of the electrical control box forms a fluid duct with the fan housing. During assembly, it only needs to be fixed to the inner wall of the smoke hood housing, achieving a compact design.
The size of the range hood has been reduced, the structural compactness and production assembly efficiency have been improved, cable wear and poor contact problems have been avoided, and the installation process has been simplified.
Smart Images
Figure CN224479691U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a miniaturized smoke machine. Background Technology
[0002] The core function of a range hood relies on the coordinated operation of its fan system and electronic control system. In traditional designs, the fan housing and control box are typically separate units. This requires independent installation space for both, as well as cable routing channels, resulting in a loose overall structure. For smaller range hoods, this makes it difficult to meet the market demand for compact yet powerful suction. Furthermore, the separate structure necessitates separate installation of the fan housing and control box, along with cable connections and securing them. This cumbersome process not only increases labor costs but also increases the risk of cable wear and poor contact due to assembly errors, impacting product reliability. Utility Model Content
[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a miniaturized smoke hood that integrates the fan housing and the electrical control box into a single structure, which helps to reduce the size of the smoke hood, improve structural compactness, and increase production and assembly efficiency.
[0004] A miniaturized range hood according to an embodiment of the present invention includes: a range hood housing, wherein a fan device and a control unit electrically connected to the fan device are disposed inside the range hood housing, the fan device includes a fan housing and a motor and fan blades disposed inside the fan housing, the control unit includes an electrical control box and a circuit board disposed inside the electrical control box, the fan housing and the electrical control box are integral structures, the fan housing has a fluid duct inside which is isolated from the internal space of the electrical control box, a portion of the wall panel of the electrical control box and a portion of the wall panel of the fluid duct are shared, and the fan housing or the electrical control box is mounted and fixed on the inner side wall of the range hood housing.
[0005] The miniaturized smoke hood according to the embodiments of the present utility model has at least the following beneficial effects:
[0006] The above-described structure integrates the fan housing and electrical control box into a single unit. Some wall panels of the electrical control box are shared with some wall panels of the fan housing that form the fluid duct. This design is particularly suitable for manufacturing the fan housing and electrical control box in a single molding process. During assembly, the fan housing or electrical control box can be simply installed and fixed to the inner wall of the fan housing. This helps to reduce the size of the fan housing, improve structural compactness, and increase production and assembly efficiency.
[0007] In some embodiments of the present utility model, the blower housing is a volute, the fluid duct is a volute duct, the electronic control box includes a frame formed on the outer wall of an extended section of the volute duct, a cavity with an opening facing away from the volute is defined between the frame and the outer wall of the volute, the cavity is used to accommodate the circuit board, a substrate is installed at the opening of the cavity, and the substrate is fixedly connected to the inner side wall of the range hood housing.
[0008] In some embodiments of the present utility model, the volute is composed of a left half shell and a right half shell that can be spliced into a whole. A left half duct is provided inside the left half shell, and a left half frame in the shape of a "匚" is formed on the outer wall of the left half shell. A right half duct is provided inside the right half shell, and a right half frame in the shape of a "匚" is formed on the outer wall of the right half shell. The left half duct and the right half duct are spliced to form the volute duct, and the left half frame and the right half frame are spliced to form the frame.
[0009] In some embodiments of the present utility model, a left half pipe is provided at the output end of the left half duct of the left half shell, and a left half flange is provided on the outer periphery of the left half pipe. A right half pipe is provided at the output end of the right half duct of the right half shell, and a right half flange is provided on the outer periphery of the right half pipe. The left half pipe and the right half pipe form an exhaust pipe, and both the left half flange and the right half flange are fixed to the inner top wall of the range hood housing by screws.
[0010] In some embodiments of the present utility model, at least two elastic buckle portions are spaced apart on one of the opening edges of the left half shell and the opening edge of the right half shell, and the other is provided with elastic slot portions that cooperate with the elastic buckle portions one by one. At least two sets of fastening bolt assemblies are provided between the opening edge of the left half shell and the opening edge of the right half shell, and the fastening bolt assemblies are arranged between two adjacent elastic buckle portions or two adjacent elastic slot portions.
[0011] [[ID=,12]]In some embodiments of the present utility model, a first wire passing hole is penetrated through the side portion of the left half shell or the right half shell, and at least two second wire passing holes that cooperate with the first wire passing hole are penetrated through the side portion of the left half frame or the right half frame, and wire pressing clips are provided on the outer wall of the volute and inside the electronic control box.
[0012] In some embodiments of the present utility model, first through holes are provided at the four corners of the substrate, the left half shell and the right half shell are respectively provided with first threaded columns corresponding to the first through holes, a plurality of second threaded columns for connecting the circuit board are provided on the inner side wall of the substrate, second through holes are provided at the opposite side edges of the substrate, the left half shell and the right half shell are respectively provided with third threaded columns corresponding to the second through holes, and fastening screws pass through the back plate of the range hood housing and the second through holes and are connected to the third threaded columns.
[0013] In some embodiments of this utility model, the left and right sides of the range hood housing are provided with elastic release members. The elastic release members include a fixed part provided on the range hood housing, an inclined plate part connected to the fixed part and inclined away from the range hood housing, and a flat plate part connected to the lower end of the inclined plate part. The range hood housing is provided with a notch part for the flat plate part to extend and retract.
[0014] In some embodiments of this utility model, the left and right sides of the range hood housing are recessed and provided with at least two recessed sections spaced apart in the front-back direction. The range hood housing is provided with a drive rod that passes through the recessed section in the vertical direction. The drive rod is provided with a mounting support member. The mounting support member can rotate around the axial direction of the drive rod to be housed in the recessed section or extend out of the recessed section.
[0015] In some embodiments of this utility model, the drive rod is only rotatable relative to the smoke machine housing, the drive rod is provided with an external thread, and the mounting support is provided with a nut that mates with the external thread.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0018] Figure 1 This is a schematic diagram of the structure of one embodiment of the miniaturized smoke hood of this utility model;
[0019] Figure 2 for Figure 1 Internal structure diagram of the embodiment;
[0020] Figure 3 This is an exploded structural diagram of the fan casing and electrical control box.
[0021] Figure 4 for Figure 3 A structural diagram from another perspective.
[0022] Figure label:
[0023] Range hood housing 100; settling tank 110; fan housing 200; fluid duct 201; left half housing 210; left half pipe 211; left half flange 212; right half housing 220; right half pipe 221; right half flange 222; first wire hole 230; first threaded post 240; third threaded post 250; electrical control box 300; second wire hole 301; frame 310; left half frame 311; right half frame 312; base plate 320; first through hole 321; second threaded post 322; second through hole 323; elastic buckle part 410; elastic slot part 420; fastening bolt assembly 430; elastic release element 500; fixing part 510; inclined plate part 520; flat plate part 530; drive rod 610; hanging support part 620; nut part 630. Detailed Implementation
[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0025] In the description of this utility model, it should be understood that the directional descriptions, such as the terms "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 limitations on this utility model.
[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] See Figures 1 to 4 This utility model discloses a miniaturized range hood, comprising: a range hood housing 100, wherein a fan device and a control unit electrically connected to the fan device are disposed inside the range hood housing 100; the fan device includes a fan housing 200 and a motor and fan blades disposed inside the fan housing 200; the control unit includes an electrical control box 300 and a circuit board disposed inside the electrical control box 300; the fan housing 200 and the electrical control box 300 are integral structures; the fan housing 200 has a fluid duct 201 disposed inside the fan housing 200, which is isolated from the internal space of the electrical control box 300; a portion of the wall panel of the electrical control box 300 and a portion of the wall panel of the fluid duct 201 are shared; the fan housing 200 or the electrical control box 300 is mounted and fixed on the inner side wall of the range hood housing 100.
[0029] The above-described range hood structure integrates the fan housing 200 and the electrical control box 300 into a single unit. Part of the wall panel of the electrical control box 300 is shared with a portion of the wall panel on the fan housing 200 that forms the fluid duct 201. This design is particularly suitable for manufacturing the fan housing 200 and electrical control box 300 using a one-piece molding method. During assembly, either the fan housing 200 or the electrical control box 300 simply needs to be installed and fixed to the inner wall of the range hood outer casing 100. This helps reduce the size of the range hood, improves structural compactness, and increases production and assembly efficiency. It should be noted that the shared wall panel at the connection point between the electrical control box 300 and the fluid duct 201 ensures a uniform wall thickness for the overall structure formed by the fan housing 200 and the electrical control box 300, which helps prevent shrinkage when using one-piece plastic injection molding.
[0030] See Figure 2 and Figure 3 In some embodiments of this utility model, the fan housing 200 is a volute, the fluid duct 201 is a volute duct, and the electrical control box 300 includes a frame 310 formed on the outer wall of the extended section of the volute duct. The frame 310 and the outer wall of the volute define a cavity with an opening facing away from the volute. The cavity is used to accommodate the circuit board, and a substrate 320 is installed at the opening of the cavity. The substrate 320 is fixedly connected to the inner wall of the smoke hood housing 100. It is understood that the volute and volute duct are typically used as centrifugal fans. The output end of the volute duct is a straight extended section, providing a flat area for the molding of the electrical control box 300. Furthermore, when the airflow is discharged outwards, it helps to carry away heat from inside the electrical control box 300, achieving a certain heat dissipation effect.
[0031] See Figure 3 and Figure 4, in some embodiments of the present utility model, the volute is composed of a left half shell 210 and a right half shell 220 that can be spliced into a whole. A left half air duct is provided inside the left half shell 210. An outer wall of the left half shell 210 is formed with a left half frame 311 in a shape of "匚". A right half air duct is provided inside the right half shell 220. An outer wall of the right half shell 220 is formed with a right half frame 312 in a shape of "匚". The left half air duct and the right half air duct are spliced to form the volute air duct, and the left half frame 311 and the right half frame 312 are spliced to form the frame body 310. It should be noted that both the fan shell 200 and the electric control box 300 are of a two - half structure to facilitate the assembly of the motor and the impeller and also to achieve the splicing of the frame body 310.
[0032] See Figure 3 [[ID=In some embodiments of this utility model, a first wire-passing hole 230 is provided through the side of the left half-shell 210 or the right half-shell 220, and at least two second wire-passing holes 301 that cooperate with the first wire-passing hole 230 are provided through the side of the left half-frame 311 or the right half-frame 312. Wire clamps are provided on the outer wall of the volute and inside the electrical control box 300. It can be understood that the wires of the circuit board inside the electrical control box 300 are led out from one second wire-passing hole 301 and then through the first wire-passing hole 230 to connect to the motor, while the wires of the circuit board are led out from another second wire-passing hole 301 to connect to the mains socket.
[0035] See Figure 3 and Figure 4 In some embodiments of this utility model, the four corners of the substrate 320 are provided with first through holes 321, the left half shell 210 and the right half shell 220 are respectively provided with first threaded posts 240 corresponding to the first through holes 321, the inner sidewall of the substrate 320 is provided with a plurality of second threaded posts 322 for connecting the circuit board, the opposite two side edges of the substrate 320 are provided with second through holes 323, the left half shell 210 and the right half shell 220 are respectively provided with third threaded posts 250 corresponding to the second through holes 323, and the fastening screw passes through the back plate of the range hood housing 100 and the second through holes 323 and is connected to the third threaded posts 250.
[0036] See Figure 1 In some embodiments of this utility model, the left and right side walls of the range hood housing 100 are provided with elastic release members 500. The elastic release member 500 includes a fixing part 510 provided in the range hood housing 100, an inclined plate part 520 connected to the fixing part 510 and inclined away from the range hood housing 100, and a flat plate part 530 connected to the lower end of the inclined plate part 520. The range hood housing 100 is provided with a notch for the flat plate part 530 to extend and retract. It should be noted that cabinet holes matching the size of the range hood are pre-drilled on the cabinet panel. When installing the range hood, the worker first lifts the range hood upwards towards the cabinet hole. The inclined plate 520 is pressed by the edge of the cabinet hole, causing the flat plate 530 to retract along the notch. After the elastic release member 500 passes the cabinet hole upwards, the inclined plate 520 returns to its elastic deformation, causing the flat plate 530 to return to its original position. The flat plate 530 rests against the top of the cabinet hole to prevent the range hood from falling. Then, other fixing structures are used to fix the range hood, which helps with single-person installation.
[0037] See Figure 1In some embodiments of this utility model, the left and right sides of the range hood housing 100 are recessed with at least two recessed sections 110 spaced apart in the front-to-back direction. The range hood housing 100 is provided with a drive rod 610 passing through the recessed section 110 in the vertical direction. The drive rod 610 is provided with a hanging support 620. The hanging support 620 can rotate around the axial direction of the drive rod 610 to be housed within the recessed section 110 or extend beyond the recessed section 110. It can be understood that when the flat plate 530 abuts against the top of the cabinet hole to prevent the range hood from falling, the entire assembly of the drive rod 610 and the hanging support 620 can be rotated together to extend beyond the recessed section 110, so that the range hood can be hung on the cabinet hole using multiple hanging supports 620.
[0038] See Figure 1 In some embodiments of this utility model, the drive rod 610 is rotatable relative to the range hood housing 100. The drive rod 610 is provided with an external thread, and the mounting support 620 is provided with a nut 630 that mates with the external thread. With the mounting support 620 fixed, the user can rotate the drive rod 610 to move the mounting support 620 up and down along the length of the drive rod 610, thereby adjusting the height of the mounting support 620 to prevent the range hood from tilting.
[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0040] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A miniaturized smoke hood, characterized in that, Comprising: A range hood housing (100), inside which there is a blower device and a control unit electrically connected to the blower device. The blower device includes a blower housing (200), a motor and an impeller disposed inside the blower housing (200). The control unit includes an electric control box (300) and a circuit board disposed inside the electric control box (300). The blower housing (200) and the electric control box (300) are of an integral structure. Inside the blower housing (200), there is a fluid duct (201) isolated from the internal space of the electric control box (300). Part of the wall plates of the electric control box (300) and part of the wall plates of the fluid duct (201) are shared. The blower housing (200) or the electric control box (300) is installed and fixed on the inner side wall of the range hood housing (100).
2. A miniaturized range hood according to claim 1, wherein: The blower housing (200) is a volute, the fluid duct (201) is a volute duct, and the electric control box (300) includes a frame body (310) formed on the outer side wall of an extended section of the volute duct. A cavity with an opening facing away from the volute is defined between the frame body (310) and the outer wall of the volute. The cavity is used to accommodate the circuit board. A substrate (320) is installed at the opening of the cavity, and the substrate (320) is fixedly connected to the inner side wall of the range hood housing (100).
3. A miniaturized range hood according to claim 2, wherein: The volute is composed of a left half shell (210) and a right half shell (220) that can be spliced into a whole. Inside the left half shell (210), there is a left half duct. On the outer wall of the left half shell (210), a left half frame (311) in a "匚” shape is formed. Inside the right half shell (220), there is a right half duct. On the outer wall of the right half shell (220), a right half frame (312) in a "匚” shape is formed. The left half duct and the right half duct are spliced to form the volute duct, and the left half frame (311) and the right half frame (312) are spliced to form the frame body (310).
4. A miniaturized range hood according to claim 3, wherein: At the output end of the left half duct in the left half shell (210), there is a left half pipe (211). On the outer periphery of the left half pipe (211), there is a left half flange (212). At the output end of the right half duct in the right half shell (220), there is a right half pipe (221). On the outer periphery of the right half pipe (221), there is a right half flange (222). The left half pipe (211) and the right half pipe (221) form an exhaust pipe, and both the left half flange (212) and the right half flange (222) are fixed to the inner top wall of the range hood housing (100) by screws.
5. A miniaturized range hood according to claim 3 or 4, wherein: At least two elastic latching portions (410) are provided at intervals on one of the opening edges of the left half shell (210) and the right half shell (220), and the other half is provided with elastic slot portions (420) that cooperate with the elastic latching portions (410) one by one. At least two sets of fastening bolt assemblies (430) are provided between the opening edges of the left half shell (210) and the opening edges of the right half shell (220), and the fastening bolt assemblies (430) are arranged between two adjacent elastic latching portions (410) or two adjacent elastic slot portions (420).
6. A miniaturized smoke hood according to claim 3, characterized in that: The left half shell (210) or the right half shell (220) is provided with a first wire passage hole (230) through the side, and the left half frame (311) or the right half frame (312) is provided with at least two second wire passage holes (301) through the side, which cooperate with the first wire passage hole (230). The outer wall of the volute and the interior of the electrical control box (300) are both provided with wire clamps.
7. A miniaturized smoke hood according to claim 3, characterized in that: The substrate (320) has first through holes (321) at its four corners. The left half shell (210) and the right half shell (220) are respectively provided with first threaded posts (240) corresponding to the first through holes (321). The inner sidewall of the substrate (320) is provided with a plurality of second threaded posts (322) for connecting the circuit board. The opposite two sides of the substrate (320) are provided with second through holes (323). The left half shell (210) and the right half shell (220) are respectively provided with third threaded posts (250) corresponding to the second through holes (323). Fastening screws are inserted through the back plate of the range hood housing (100) and the second through holes (323) and connected to the third threaded posts (250).
8. A miniaturized smoke hood according to claim 1, characterized in that: The left and right sides of the range hood housing (100) are provided with elastic release members (500). The elastic release member (500) includes a fixing part (510) provided in the range hood housing (100), an inclined plate part (520) connected to the fixing part (510) and inclined away from the range hood housing (100), and a flat plate part (530) connected to the lower end of the inclined plate part (520). The range hood housing (100) is provided with a notch for the flat plate part (530) to extend and retract.
9. A miniaturized smoke hood according to claim 8, characterized in that: The left and right sides of the range hood housing (100) are both recessed and provided with at least two recessed sections (110) arranged at intervals along the front-back direction. The range hood housing (100) is provided with a drive rod (610) that passes through the recessed section (110) in the vertical direction. The drive rod (610) is provided with a mounting support (620). The mounting support (620) can rotate around the axis of the drive rod (610) to be housed in the recessed section (110) or extend out of the recessed section (110).
10. A miniaturized smoke hood according to claim 9, characterized in that: The drive rod (610) can only rotate relative to the outer casing (100) of the smoke machine. The drive rod (610) is provided with an external thread, and the mounting support (620) is provided with a nut (630) that mates with the external thread.