Household range hood

By installing an inclined oil collection tray and heating element in a household range hood, combined with an oil stain cleaning mechanism, regular cleaning of oil stains is achieved, solving the problem of difficult-to-clean oil stains in the oil collection box and improving hygiene and safety.

CN224094541UActive Publication Date: 2026-04-07WUHAN HONGDALIYI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-12
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Oil grease accumulates in the oil collection box of existing household range hoods over a long period of time, making the grease sticky and difficult to clean, which can easily breed bacteria and affect health.

Method used

Design a household range hood with an inclined oil collection trough and heating components inside the oil collection box. Combined with an oil cleaning mechanism, the grease is softened by heating and a cleaning agent is sprayed by a micro water pump, causing the oil to flow into a storage tank along the inclined trough for regular cleaning.

Benefits of technology

It effectively prevents oil stains from accumulating for a long time, prevents stickiness and bacterial growth, simplifies the cleaning process, and improves hygiene and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

A household range hood comprises a range hood body, an oil collecting box is detachably mounted at the bottom end of the range hood body, a bottom plate and an oil collecting groove are arranged at the bottom of the oil collecting box, and the oil collecting groove is obliquely formed above the bottom plate; an interlayer and a heating assembly mounted in the interlayer are arranged between the bottom plate and the oil collecting groove; an oil stain cleaning mechanism is arranged at the high end of the oil collecting tank; and an oil stain inflow cover is arranged at the lower end of the oil collecting groove, is of a funnel structure and is detachably connected with an oil stain storage tank. According to the household range hood disclosed by the utility model, through the arrangement of the heating assembly and the oil stain cleaning mechanism, oil in the oil collecting groove is softened firstly, and then the softened and cleaned oil stain flows to the lower part along the inclined oil collecting groove in cooperation with spraying of an oil stain cleaning agent and flows into the oil stain storage tank through the inflow port at the upper end of the oil stain inflow cover; the oil collecting box is regularly cleaned, and bacteria breeding caused by the fact that oil stains are more and more viscous and cannot be treated due to long-time accumulation is avoided.
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Description

Technical Field

[0001] This utility model is specifically a household range hood. Background Technology

[0002] Range hoods are essential kitchen appliances, and the grease collection box is the device used by range hoods to collect grease. A large amount of grease accumulates in the grease collection box, and over time, the grease becomes increasingly viscous and adheres tightly to the inside of the grease collection box, making it very troublesome to clean. Moreover, it is difficult to clean thoroughly and can easily breed bacteria, posing a health hazard. Utility Model Content

[0003] In view of the above, this utility model provides a household range hood to solve the problems mentioned in the background art.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a household range hood includes a range hood body, an oil collection box detachably installed at the bottom of the range hood body, a bottom plate and an oil collection trough at the bottom of the oil collection box, the oil collection trough being inclined above the bottom plate, so that one end of the oil collection trough is lower than the other end on the horizontal plane; a partition is provided between the bottom plate and the oil collection trough, and a heating component installed in the partition, the heating end of the heating component contacting the bottom of the oil collection trough for heating and softening grease; an oil stain cleaning mechanism is provided at the higher end of the oil collection trough, the oil stain cleaning mechanism including a nozzle and an oil stain cleaning device. The system includes a water tank, water pipes, and a mini water pump. The water tank is installed on the main body of the range hood, and the mini water pump is located inside the water tank. The nozzles penetrate the side wall of the oil collection box and are positioned towards the oil collection trough. The water pipes connect the mini water pump and the nozzles, allowing the oil cleaner to be sprayed onto the surface of the oil collection trough. An oil inflow hood is located at the lower end of the oil collection trough. The oil inflow hood has a funnel structure, with the cross-section of its upper inlet being larger than the cross-section of its lower outlet. The upper inlet is located below the lower end of the oil collection trough, and the lower outlet is detachably connected to the oil storage tank through the bottom plate, allowing the oil on the surface of the oil collection trough to flow into the oil storage tank through the upper inlet.

[0005] Preferably, the oil collection trough structure is low in the middle and high on both sides, with the two sides extending outward to contact the side wall of the oil collection box.

[0006] Preferably, the heating assembly includes multiple heating elements distributed at the bottom of the oil collection tank.

[0007] Preferably, the lower outlet is provided with an external thread, and the connection port of the oil storage tank is provided with an internal thread for threaded connection.

[0008] Preferably, the oil storage tank has a rectangular structure and multiple connection holes are provided between it and the bottom plate of the oil collection box.

[0009] Preferably, the lower side of the oil storage tank is covered with an opaque sticker, while the upper side is transparent and marked with the maximum oil storage scale.

[0010] Preferably, it also includes an oil fume purification switch for regulating the operation of the heating element and the micro water pump, and a time relay for setting the operating time of the heating element and the micro water pump. Both the oil fume purification switch and the time relay are located on the main body of the range hood.

[0011] This utility model of a household range hood, by setting up a heating component and an oil stain cleaning mechanism, first softens the grease in the oil collection tank, and then, with the spraying of oil stain cleaner, causes the softened and cleaned grease to flow down the inclined oil collection tank, and then into the oil stain storage tank through the inlet at the top of the oil stain inflow cover. This achieves regular cleaning of the oil collection box, avoiding the long-term accumulation of grease that becomes increasingly viscous and difficult to handle, leading to bacterial growth. Attached Figure Description

[0012] Figure 1 This is a structural diagram of the main body of the range hood.

[0013] Figure 2 This is a schematic diagram of the assembly structure of the oil collection box and oil collection tank, heating components, oil cleaning mechanism and oil inflow cover.

[0014] Figure 3 This is a schematic diagram of the oil collection tank.

[0015] Figure 4 This is a schematic diagram of the assembly structure of the oil spill inflow hood and the oil spill storage tank.

[0016] Figure 5 This is the circuit schematic diagram of this utility model.

[0017] In the diagram: 1. Main body of the range hood; 2. Oil collection box; 201. Base plate; 202. Partition; 3. Oil fume purification switch; 4. Time relay; 5. Oil collection trough; 6. Heating element; 7. Nozzle; 8. Water pipe; 9. Water tank; 10. Mini water pump; 11. Oil sludge inflow hood; 12. Oil sludge storage tank; 13. Connection port; 14. Connection hole; 15. Maximum scale mark. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and some embodiments.

[0019] exist Figures 1-5A household range hood includes a range hood body 1. An oil collection box 2 is detachably installed at the bottom of the range hood body 1 via a slot structure. The bottom of the oil collection box 2 is provided with a base plate 201 and an oil collection trough 5. The oil collection trough 5 is inclinedly arranged above the base plate 201, so that one end of the oil collection trough 5 is lower than the other end on the horizontal plane. Oil stains in the range hood body 1 flow into the oil collection box 2 and gradually accumulate at the lower end of the oil collection trough 5.

[0020] In this embodiment, a partition 202 is provided between the base plate 201 and the oil collection tank 5, and a heating component is installed in the partition 202. The heating end of the heating component is in contact with the bottom of the oil collection tank 5 to heat and soften the grease. An oil cleaning mechanism is provided at one end of the oil collection tank 5 at a high position. The oil cleaning mechanism includes a nozzle 7, a water tank 9 containing oil cleaning agent, a water pipe 8, and a micro water pump 10. The water tank 9 is installed on the main body 1 of the range hood, and the micro water pump 10 is installed in the water tank 9. The nozzle 7 is set through the side wall of the oil collection box 2 and faces the oil collection tank 5. The water pipe 8 connects the micro water pump 10 and the nozzle 7 so that the oil cleaning agent is sprayed on the surface of the oil collection tank 5. The bottom of the oil collection tank 5 is heated by the heating component to soften the grease in the oil collection tank 5. Then, the pressure of the micro water pump 10 sprays the oil cleaning agent in the water tank 9 onto the surface of the oil collection tank 5 through the nozzle 7, so that the softened and cleaned grease flows down the inclined oil collection tank 5.

[0021] In this embodiment, an oil inflow hood 11 is provided at the lower end of the oil collection tank 5. The oil inflow hood 11 has a funnel structure, with the cross-section of its upper inlet being larger than the cross-section of its lower outlet. The upper inlet is located below the lower end of the oil collection tank 5, and the lower outlet is detachably connected to the oil storage tank 12 through the bottom plate 201, so that the oil on the surface of the oil collection tank 5 flows into the oil storage tank 12 through the upper inlet. The softened oil flowing down the inclined oil collection tank 5 flows into the oil storage tank 12 through the upper inlet of the oil inflow hood 11, thereby achieving regular cleaning of the oil collection box 2 and preventing the oil from accumulating for a long time and becoming increasingly viscous and unmanageable, which could lead to bacterial growth.

[0022] In this embodiment, the oil collection trough 5 is structured with a low center and high sides, with the two sides extending outwards to contact the side walls of the oil collection box 2; this allows the softened and cleaned oil to flow down the middle of the oil collection trough 5 and into the oil storage tank 12.

[0023] In this embodiment, the heating component includes a plurality of heating elements 6, which are distributed at the bottom of the oil collection tank 5; the heating elements 6 heat the bottom of the oil collection tank 5, causing the grease in the oil collection tank 5 to soften and flow.

[0024] In this embodiment, the lower outlet is provided with an external thread, and the connection port 13 of the oil storage tank 12 is provided with an internal thread for threaded connection; this facilitates the disassembly of the oil storage tank 12, the emptying of the internal oil, and the cleaning or replacement of the oil storage tank 12.

[0025] In this embodiment, the oil storage tank 12 has a rectangular structure and multiple connection holes 14 are provided between it and the bottom plate 201 of the oil collection box 2, so that the oil storage tank 12 can be stably installed at the bottom of the oil collection box 2.

[0026] In this embodiment, the lower side of the oil storage tank 12 is covered with an opaque sticker, while the upper side is transparent and marked with a maximum oil storage mark 15. The opaque sticker prevents the oil stains in the oil storage tank 12 from being visible and unsightly. When the oil stains reach the maximum mark 15, the oil storage tank 12 is cleaned up in time.

[0027] In this embodiment, the system also includes an oil fume purification switch 3 for regulating the operation of the heating element 6 and the micro water pump 10, and a time relay 4 for setting the operating time of the heating element 6 and the micro water pump 10. Both the oil fume purification switch 3 and the time relay 4 are mounted on the main body 1 of the range hood. The operating time of the heating element 6 and the micro water pump 10 can be set to 1-3 minutes via the time relay 4. When the oil fume purification switch 3 is pressed, the heating element 6 and the micro water pump 10 are regulated to operate for 1-3 minutes according to the time setting of the time relay 4, so that the grease in the oil collection tank 5 is softened and flows.

[0028] In this embodiment, the miniature water pump 10 generally refers to a miniature DC water pump powered by 24V DC. The miniature water pump 10 is an instrument that has one inlet and one outlet, and can continuously create a vacuum or negative pressure at the inlet; creates a large output pressure at the outlet; uses water or liquid as the working medium; and is small in size.

[0029] In this embodiment, the heating element 6 is a common heatable pressing device, such as an electric heating device like the LCD-Q model or XRDR-STG model.

[0030] In this embodiment, the control circuit of this utility model is a common circuit in the field of circuits. The device of this utility model can be connected to an external power source through a power cord to provide power to the device. Those skilled in the art can implement it, so it will not be described in detail here.

[0031] In specific implementation of this utility model: the bottom of the oil collection tank 5 is heated by the heating component to soften the grease in the oil collection tank 5. Then, the pressure of the micro water pump 10 is used to spray the oil stain cleaner in the water tank 9 onto the surface of the oil collection tank 5 through the nozzle 7. The softened and cleaned oil stains flow down the inclined oil collection tank 5 and into the oil stain storage tank 12 through the upper inlet of the oil stain inflow cover 11. This achieves regular cleaning of the oil collection box 2 and avoids the oil stains from accumulating for a long time and becoming more and more viscous and difficult to handle, which leads to bacterial growth.

[0032] It is worth noting that in the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection. The circuits described in this utility model are all commonly used circuits in the art, and other related components are all commonly used existing components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0033] It will be apparent to those skilled in the art that this utility model patent is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model patent. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model patent is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be encompassed within this utility model patent. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A household range hood, comprising a range hood body, wherein an oil collection box is detachably installed at the bottom of the range hood body, characterized in that: The bottom of the oil collection box is provided with a base plate and an oil collection trough. The oil collection trough is inclined and set above the base plate, so that one end of the oil collection trough is lower than the other end on the horizontal plane. A partition is provided between the base plate and the oil collection tank, and a heating component is installed in the partition. The heating end of the heating component is in contact with the bottom of the oil collection tank to heat and soften the grease. An oil cleaning mechanism is provided at one end of the oil collection tank. The oil cleaning mechanism includes a nozzle, a water tank containing oil cleaning agent, a water pipe, and a micro water pump. The water tank is installed on the main body of the range hood, the micro water pump is installed inside the water tank, and the nozzle is set through the side wall of the oil collection box and facing the oil collection tank. The water pipe connects the micro water pump and the nozzle, so that the oil cleaning agent is sprayed on the surface of the oil collection tank. An oil sludge inflow hood is provided at one end of the oil collection tank at the lowest point. The oil sludge inflow hood has a funnel structure, with the cross-section of the upper inlet being larger than the cross-section of the lower outlet. The upper inlet is located below the lower end of the oil collection tank, and the lower outlet is detachably connected to the oil storage tank through the bottom plate, so that the oil sludge on the surface of the oil collection tank flows into the oil storage tank through the upper inlet.

2. A household range hood according to claim 1, characterized in that: The oil collection trough has a structure that is low in the middle and high on both sides, with the two sides extending outwards to contact the side wall of the oil collection box.

3. A household range hood according to claim 1, characterized in that: The heating assembly includes multiple heating elements distributed at the bottom of the oil collection tank.

4. A household range hood according to claim 1, characterized in that: The lower outlet is provided with an external thread, and the connection port of the oil storage tank is provided with an internal thread for threaded connection.

5. A household range hood according to claim 4, characterized in that: The oil storage tank has a rectangular structure and multiple connection holes are provided between it and the bottom plate of the oil collection box.

6. A household range hood according to claim 5, characterized in that: The bottom of the oil storage tank is covered with an opaque sticker, while the top is transparent and marked with the maximum oil storage level.

7. A household range hood according to claim 3, characterized in that: It also includes an oil fume purification switch that controls the operation of the heating element and the micro water pump, and a time relay that sets the operating time of the heating element and the micro water pump. Both the oil fume purification switch and the time relay are located on the main body of the range hood.