Range hood

Abstract

The utility model discloses a range hood which comprises a box body and a fan cleaning device, the fan cleaning device comprises a fan, a water pump and a heating module, and the fan is arranged in the box body; and the heating module and the water pump are arranged in the box body up and down. Compared with the prior art, the fan cleaning device has the advantages that the water pump and the heating module are stacked up and down, so that the layout reasonability of the fan cleaning device is improved, the space is saved, and the water pump and the heating device are arranged in the box body, so that the risk of short circuit of the power panel is avoided even if leakage occurs.

Description

Technical Field

[0001] This utility model relates to an oil fume purification device, and more particularly to an oil fume extractor. Background Technology

[0002] Range hoods have become an indispensable kitchen appliance in modern homes. The frying, deep-frying, and stir-frying characteristic of Chinese cooking makes the kitchen one of the most greasy places in the home. The invention of the range hood has brought unprecedented purification to the kitchen environment. However, the problem of cleaning the range hood has followed. After a period of use, the internal fan system of the range hood accumulates a large amount of grease, significantly reducing its smoke extraction efficiency. Cleaning the fan system requires disassembling the machine, which is not only extremely difficult to remove due to the grease buildup, but also involves a large workload and leaves a mess, making it a headache for people's home cleaning.

[0003] To alleviate user inconvenience, range hoods with self-cleaning functions are now available. For example, Chinese Patent Application No. 202221361293.2 discloses a steam-cleaning range hood, which includes a main body and a steam cleaning device. The main body includes a smoke collection hood and a fan box. The fan box has a fan assembly inside. The steam cleaning device includes a water tank, a water pump, a connecting pipe, and a steam generator. The water inlet of the steam generator is connected to the water tank via the connecting pipe, and the steam outlet of the steam generator is connected to a spray pipe via the connecting pipe. Water in the water tank is pumped through the connecting pipe to the steam generator for heating and vaporization into steam.

[0004] These existing self-cleaning range hoods typically place the water pump and heating module in series on the fan frame next to the power board. This series horizontal arrangement takes up a lot of space, and if the water leaks, there is a risk of short circuits on the circuit board. Utility Model Content

[0005] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a range hood that improves the layout rationality of the fan cleaning device, saves space, and avoids the risk of short circuit in the power board of the range hood.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: a range hood, comprising a housing and a fan cleaning device, wherein the fan cleaning device comprises a fan, a water pump, and a heating module, and the fan is disposed within the housing; characterized in that:

[0007] The heating module and water pump are arranged vertically within the housing.

[0008] By stacking the water pump and heating module vertically, the layout of the fan cleaning device is improved, saving space. By placing the water pump and heating device inside the housing, there is no risk of short circuit to the power board even if a leak occurs.

[0009] Furthermore, the fan cleaning device also includes a first support frame, which is fixed inside the housing, and the heating module is detachably connected to the first support frame. The detachable structure of the heating module saves time and facilitates disassembly during assembly and maintenance.

[0010] Preferably, the heating module is snapped onto the first support frame, the bottom of the heating module is provided with a claw, and the first support frame is provided with a slot that cooperates with the claw.

[0011] To further facilitate disassembly and assembly, the claw is located on the bottom rear side of the heating module, and the bottom front side of the heating module is fixed to the first support frame with screws.

[0012] To facilitate the fixing of the water pump, the fan cleaning device also includes a second support frame, which is fixed on the first support frame, and the water pump is fixed on the second support frame.

[0013] Preferably, to facilitate the installation of the second support and heating module on the first support frame, the first support frame is L-shaped, and the first support frame includes a lateral extension and a longitudinal extension extending downward from the edge of the lateral extension. The heating module is installed on the lateral extension, and the second support frame is fixed to the longitudinal extension.

[0014] To facilitate fixing the water pump, the second support frame includes a clamping frame for fixing the water pump, which passes through the clamping frame and is clamped and fixed in an interference fit.

[0015] Furthermore, the fan cleaning device also includes a cleaning mechanism, which comprises a cleaning medium supply pipe capable of moving relative to the fan to clean it, and a drive mechanism for driving the cleaning medium supply pipe. The cleaning medium supply pipe is in fluid communication with the heating module. The drive mechanism is mounted on the outside of the fan via a mounting bracket. The mounting bracket includes a detachably connected first bracket and a second bracket. The first bracket is fixed to the housing, and the drive mechanism is mounted on the second bracket. This facilitates the maintenance of the cleaning mechanism.

[0016] To facilitate the delivery of the cleaning medium, the blower cleaning device also includes a water box for storing the cleaning medium. The inlet of the water pump is in fluid communication with the water box through an inlet pipe, the outlet of the water pump is in fluid communication with the inlet of the heating module through an outlet pipe, and the outlet of the heating module is in fluid communication with the cleaning medium supply pipe through an outlet pipe.

[0017] Compared with the prior art, the advantages of this utility model are as follows: by stacking the water pump and heating module vertically, the layout of the fan cleaning device is improved and space is saved; by placing the water pump and heating device inside the housing, there is no risk of short circuit to the power board even if leakage occurs; the heating module adopts a detachable structure, which saves time and facilitates disassembly during assembly and maintenance; the entire moving cleaning mechanism is detachable, further improving the convenience of maintenance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a range hood according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the concealed housing of the range hood according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the fan cleaning device for a range hood according to an embodiment of the present utility model;

[0021] Figure 4 This is a partial schematic diagram of the fan cleaning device of the range hood according to an embodiment of the present utility model;

[0022] Figure 5 This is a partially exploded structural diagram of the fan cleaning device of the range hood according to an embodiment of the present utility model.

[0023] Figure 6 This is a schematic diagram of the cleaning mechanism and mounting bracket of the fan cleaning device for a range hood according to an embodiment of the present utility model;

[0024] Figure 7 This is an exploded structural diagram of the cleaning mechanism and mounting bracket of the range hood fan cleaning device according to an embodiment of the present utility model. Detailed Implementation

[0025] The embodiments of the present invention are described in detail below. Examples of the 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.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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. Since the embodiments disclosed in this utility model can be arranged in different directions, these terms indicating direction are only for illustration 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. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0027] See Figures 1 to 7 A range hood includes a housing 1 and a fan cleaning device. The fan cleaning device includes a fan 21 and a cleaning mechanism 22. The fan 21 is a centrifugal fan and is installed inside the housing 1. In this embodiment, the fan 21 is used in a range hood. Alternatively, the fan 21 can be used in any other application requiring such a power device. Furthermore, the range hood is not limited to the side-suction type shown in this embodiment; it can also be applied to top-suction, low-suction, and other types of range hoods. Thus, the housing 1 is not limited to serving as a smoke collection hood as shown in this embodiment; rather, it can be used like a commonly used top-suction range hood, where the housing 1 is an independent fan frame for mounting the fan, and a smoke collection hood for smoke intake can be installed below the housing 1.

[0028] The fan 21 includes a volute 211 and an impeller 212 disposed within the volute 211, and can be either a single-inlet or dual-inlet fan. The structure of the fan 21 is the same as that of the prior art, and will not be described in detail here.

[0029] The cleaning mechanism 22 includes a cleaning medium supply pipe 221 and a drive mechanism (not shown) for driving the cleaning medium supply pipe 221 to rotate. One end of the cleaning medium supply pipe 221 is connected to an external cleaning medium source, and the other end is provided with a nozzle 212. The cleaning medium can be water, high-temperature steam, cleaning agent, etc. The drive mechanism can be a motor, which is connected to the cleaning medium supply pipe 221 for transmission, thereby driving the cleaning medium supply pipe 221 around the height direction of the volute 211. Figure 3The device, shown in the vertical direction (perpendicular to the axis of impeller 212, or alternatively parallel to the axis of impeller 212), rotates to penetrate into the volute 211 during cleaning, and remains outside the volute 211 during normal operation of the fan 21. This structure is prior art; see the prior art disclosed in the applicant's applications 202122653689.6 and 202122651526.4.

[0030] The drive mechanism is mounted on the outside of the volute 211 via a mounting bracket 223. The mounting bracket 223 includes a detachably connected first bracket 2231 and a second bracket 2232. The first bracket 2231 is fixed to the housing 1, as in this embodiment, it is fixed inside the rear side of the housing 1. The second bracket 2232 is detachably connected to the first bracket 2231 by a snap-fit ​​connection. The drive mechanism is mounted on the second bracket 2232, thereby allowing the drive mechanism, the cleaning medium supply pipe 221, and the second bracket 2232 to be detached as a whole relative to the first bracket 2231. When disassembly and maintenance are required, only the screws on the front of the volute 211 need to be removed to take the entire assembly out.

[0031] The fan cleaning device also includes a water pump 23, a heating module 24, and a water box 25, all of which are housed within the housing 1. The water box 25 stores cleaning media, such as water, and can be located on the left or right side of the housing 1. It can be pulled out of the housing 1 for refilling when the water is empty. The water pump 23 and heating module 24 are stacked together. For ease of installation, the fan cleaning device also includes a first support frame 261 and a second support frame 262. The first support frame 261 is fixed to the housing 1, as in this embodiment, by screws inside the rear side of the housing 1. The first support frame 261 may be L-shaped, including a lateral extension 2611 and a longitudinal extension 2612. The longitudinal extension 2612 extends downward from one edge of the lateral extension 2611. In this embodiment, the first support frame 261 is located on the right side of the fan 31, and the longitudinal extension 2612 extends downward from the right edge of the lateral extension 2611. The heating module 24 can be mounted on the lateral extension 2611 of the first support frame 261, and the two are fixed together by a snap-fit ​​connection. In this embodiment, a claw 241 is provided on the rear bottom side of the heating module 24, and a slot 2613 is provided on the lateral extension 2611. The slot 2613 can be rectangular. During installation, the claw 241 is first snapped into the slot 2613, and then the front bottom side of the heating module 24 and the lateral extension 2611 can be fixed together with screws, which is convenient for both installation and disassembly.

[0032] The second support frame 262 is disposed on the longitudinal extension 2612 of the first support frame 261 and can be connected and fixed to the left side surface of the longitudinal extension 2612. The two can be fixed together by screws. The second support frame 262 may include a clamping frame 2621 for fixing the water pump 23, which may be made of rubber. In this embodiment, there are two clamping frames 2621, which are arranged at intervals along the axis of the water pump 23. The water pump 23 passes through the clamping frame 2621 and is clamped and fixed by an interference fit.

[0033] By placing the water pump 23 and the heating device 24 inside the housing 1, there is no risk of short circuit even if a leak occurs. Furthermore, the heating module 24 has a detachable structure, which saves time and makes disassembly easier during assembly and maintenance.

[0034] The inlet of water pump 23 is fluidly connected to water box 25 through inlet pipe 271, and the outlet of water pump 23 is fluidly connected to inlet of heating module 24 through outlet pipe 272. The outlet of heating module 24 is fluidly connected to cleaning medium supply pipe 221 through air outlet pipe 273. When it is necessary to clean fan 21, water pump 23 draws water from water box 25, then heats it through heating module 24 to generate steam, and then the steam is sprayed out from nozzle 222 of cleaning medium supply pipe 221 to clean fan 21.

[0035] The term "fluid connectivity" as used in this utility model refers to the spatial relationship between two components or parts (hereinafter referred to as the first part and the second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow from the first part along a flow path and / or be transported to the second part. This can be a direct connection between the first part and the second part, or an indirect connection between the first part and the second part through at least one third party. The third party can be a fluid channel such as a pipe, channel, conduit, guide, hole, or groove, or a chamber or combination thereof that allows fluid to flow through.

Claims

1. A range hood, comprising a housing (1) and a fan cleaning device, the fan cleaning device comprising a fan (21), a water pump (23) and a heating module (24), the fan (21) being disposed within the housing (1); characterized in that: The heating module (24) and the water pump (23) are arranged vertically inside the housing (1).

2. The range hood according to claim 1, characterized in that: The fan cleaning device also includes a first support frame (261), which is fixed inside the housing (1), and the heating module (24) is detachably connected to the first support frame (261).

3. The range hood according to claim 2, characterized in that: The heating module (24) is snapped onto the first support frame (261). The bottom of the heating module (24) is provided with a claw (241), and the first support frame (261) is provided with a slot (2613) that cooperates with the claw (241).

4. The range hood according to claim 3, characterized in that: The claw (241) is located on the bottom rear side of the heating module (24), and the bottom front side of the heating module (24) is fixed to the first support frame (261) by screws.

5. The range hood according to claim 2, characterized in that: The fan cleaning device also includes a second support frame (262), which is fixed on the first support frame (261), and the water pump (23) is fixed on the second support frame (262).

6. The range hood according to claim 5, characterized in that: The first support frame (261) is L-shaped and includes a lateral extension (2611) and a longitudinal extension (2612) extending downward from the edge of the lateral extension (2611). The heating module (24) is disposed on the lateral extension (2611), and the second support frame (262) is fixed to the longitudinal extension (2612).

7. The range hood according to claim 5, characterized in that: The second support frame (262) includes a clamping frame (2621) for fixing the water pump (23), the water pump (23) passing through the clamping frame (2621) and being clamped and fixed in an interference fit.

8. The range hood according to claim 1, characterized in that: The fan cleaning device further includes a cleaning mechanism (22), which includes a cleaning medium supply pipe (221) that can move relative to the fan (21) to clean the fan (21) and a drive mechanism for driving the cleaning medium supply pipe (221). The cleaning medium supply pipe (221) is in fluid communication with the heating module (24). The drive mechanism is installed on the outside of the fan (21) via a mounting bracket (223). The mounting bracket (223) includes a first bracket (2231) and a second bracket (2232) that are detachably connected. The first bracket (2231) is fixed to the housing (1), and the drive mechanism is mounted on the second bracket (2232).

9. The range hood according to claim 1, characterized in that: The fan cleaning device also includes a water box (25) for storing cleaning medium. The inlet of the water pump (23) is fluidly connected to the water box (25) through the water inlet pipe (271). The outlet of the water pump (23) is fluidly connected to the inlet of the heating module (24) through the water outlet pipe (272). The outlet of the heating module (24) is fluidly connected to the cleaning medium supply pipe (221) through the air outlet pipe (273).

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