Oil cup and oil smoke suction device

Abstract

The application belongs to the technical field of oil fume treatment, and particularly relates to an oil cup and an oil fume suction device. The application innovatively adopts a bearing table of a gravity sensor and a body mounting part to jointly bear the total weight of the oil cup and internal oil stains. The application can not only reduce the long-term stress burden of the bearing table by sharing the load, reduce wear and tear, and greatly improve the long-term operation stability of the detection structure, but also can determine the accumulation amount of the oil stains in the oil cup in combination with a preset weight proportion relationship on the basis of the actual weight of the bearing table. When the oil stains reach a warning threshold, an alarm is triggered in time, and a more accurate and reliable detection and warning effect is achieved.

Description

Technical Field

[0001] This application belongs to the field of oil fume treatment technology, specifically relating to an oil cup with a liquid level reminder function, and an oil fume extraction device equipped with such an oil cup. Background Technology

[0002] Range hoods and integrated cooktops are indispensable fume extraction devices in modern kitchens. Their core working principle involves using a fan to generate negative pressure, drawing cooking fumes into the unit. After being filtered by a filter, clean air is expelled outdoors. The liquid grease separated during this process needs to be collected by a specialized component—the grease cup. As the grease collection compartment of the fume extraction device, the grease cup is constantly exposed to high temperatures and dense grease. If too much grease accumulates inside and is not cleaned in time, it can not only overflow and contaminate the unit and the kitchen environment, but also potentially breed bacteria, produce odors, and even pose safety hazards at high temperatures. Therefore, accurately and promptly reminding users to clean the grease cup is a key design consideration to ensure both the user experience and safety of the fume extraction device.

[0003] To address the industry pain point of difficulty in determining the appropriate cleaning time for built-in oil cups, various detection technologies have emerged. Among them, the weighing method, with its significant advantages of low cost and convenient maintenance, has become the mainstream solution widely adopted in the market. Patent application number 201721277278.9 provides a typical early weighing solution. Its core design involves directly attaching the lugs at both ends of the oil cup to the load end of the weighing sensor. The sensor detects the overall weight signal of the oil cup in real time, and the control mechanism then links the display, alarm device, and other reminder components. This not only prompts users to install the oil cup in time but also issues a cleaning warning when oil accumulates to a certain level, achieving basic detection and reminder functions. However, in this solution, the weighing sensor is located above the oil cup, constantly exposed to a dense oil environment. The sensor surface is easily contaminated with oil, interfering with signal detection. Simultaneously, the lugs of the oil cup are in direct contact with the load end of the sensor, and frequent disassembly and cleaning by the user continuously wears down the load end, further exacerbating detection errors. To address these issues, patent application number 202220406278.9 proposes an improved structure. This involves adding an inner cup inside the traditional main cup, setting the upper edge of the inner cup as the oil stain cleaning warning level, and installing a weight sensor electrically connected to the controller at the bottom of the inner cup. Its working logic is clear: when the liquid level is below the warning line, oil accumulates only in the main cup, the inner cup is empty, and the sensor has no signal; when the liquid level exceeds the warning line, oil flows into the inner cup, the weight change triggers the sensor, and thus initiates the cleaning prompt. Although the improved solution optimizes the structure, it still does not completely solve the core problems of detection accuracy and long-term stability. In actual use, the location where oil drips from the range hood filter or condenser plate is affected by various factors such as the internal structure of the device, the fan speed, and the amount of cooking fumes generated. It cannot be fixed in a specific area of ​​the main cup, and some oil inevitably drips directly into the inner cup, causing the sensor to falsely trigger the warning when the liquid level in the main cup is below the warning line.

[0004] In summary, both of the two mainstream weighing solutions in the industry have significant shortcomings: whether it is the early design that places the oil cup on the gravity sensor, or the improved solution that integrates the gravity sensor into the oil cup through an internal cup structure, they both suffer from poor early warning effects and poor long-term operational stability, and cannot fully meet users' needs for oil cup cleaning. Utility Model Content

[0005] The purpose of this application is to provide an oil cup with good early warning effect and high long-term operational stability, which is achieved through the following technical solution:

[0006] An oil cup includes a body with an opening at the top, an internal cavity for collecting oil, and a gravity sensor for detecting the weight of the oil cup and its contents disposed inside the cavity. The gravity sensor is electrically connected to an indicator for displaying oil information. The body has a mounting portion for fixing the oil cup to a fume extractor, and the mounting portion has a first force-bearing surface for abutting against the fume extractor. The gravity sensor has a protruding support platform for weighing, and the support platform includes a second force-bearing surface for abutting against the fume extractor. When the oil cup is mounted on the fume extractor, the combined force on the first and second force-bearing surfaces is equal to the total weight of the oil cup and its contents.

[0007] Preferably, the first and second force-bearing surfaces are on the same horizontal plane, and when the oil cup is installed on the fume extraction device, the magnitude of the force on the first and second force-bearing surfaces is equal.

[0008] Preferably, the body includes two opposing body sidewalls, which extend along the installation direction of the oil cup, and the mounting portion extends from the upper edge of one body sidewall toward the opposite body sidewall.

[0009] Preferably, at least one set of mounting parts is provided, and one set of mounting parts are respectively arranged on the opposite sidewalls of the main body.

[0010] Preferably, the body includes a set of body end walls disposed between the body sidewalls, and the upper end of at least one of the body end walls is lower than the mounting portion to form a clearance portion between the mounting portion and the body end wall.

[0011] Preferably, the gravity sensor is fixed on the inner wall of the accommodating cavity, and its exterior is covered with a sensor protective cover to prevent oil stains from seeping in.

[0012] A fume extraction device, characterized in that it includes an oil cup as described in any one of the above claims.

[0013] Preferably, the fume extraction device is further provided with a support panel for cooperating with the first and second force-bearing surfaces.

[0014] Preferably, the support panel is an integral plate structure. During installation, the support panel passes through the clearance part and is distributed above the receiving cavity. The support panel is provided with an oil passage hole for oil droplets to pass through, and an arc-shaped oil guide plate is provided outside the oil passage hole to guide oil into the oil passage hole.

[0015] Preferably, the support platform is further provided with a third force-bearing surface for contacting the end of the support panel.

[0016] Compared with the prior art, this application has the following beneficial effects:

[0017] This application innovatively employs a gravity sensor's support platform and the main body mounting section to jointly bear the total weight of the oil cup and its internal oil contaminants. This not only reduces the long-term stress on the support platform by distributing the load, thus minimizing wear and tear and significantly improving the long-term operational stability of the detection structure, but also determines the amount of oil accumulated in the oil cup based on the actual load of the support platform and a preset weight ratio. When the oil contaminants reach the warning threshold, an alarm is triggered promptly, achieving a more accurate and reliable detection and warning effect. Furthermore, by designing the first and second force-bearing surfaces to be on the same horizontal plane with equal forces, no additional force ratio calibration is required, greatly simplifying the calculation logic for the oil contaminant weight and further improving the timeliness and reliability of the warning trigger.

[0018] This application designs the main body as two opposing sidewalls extending along the installation direction, with the upper edge of one sidewall extending to the opposite side to form a mounting portion. This allows the oil cup to be directly and smoothly slid into the corresponding assembly position of the fume extraction device along the installation direction, eliminating the need for complex alignment operations and making the installation process more convenient and efficient, while also ensuring stability after installation. Furthermore, by arranging the mounting portions on the opposing sidewalls of the main body, the force on the oil cup is evenly distributed on both sides after installation, avoiding tilting or loosening caused by unilateral force, and significantly improving the stability of the connection between the oil cup and the fume extraction device. Furthermore, by providing a clearance portion between the mounting portion and the end wall of the main body, sufficient adaptation space is reserved for the corresponding assembly structure of the fume extraction device, avoiding structural interference during installation, making the sliding installation smoother, reducing frictional wear between the oil cup and the fume extraction device during assembly, and facilitating user handling when disassembling the oil cup, further improving ease of use.

[0019] This application fixes the gravity sensor to the inner wall of the accommodating cavity, eliminating the need for additional external installation space and making the overall structure of the oil cup more compact and the layout more reasonable. Furthermore, by covering the sensor with a dedicated sensor protective cover, it can effectively prevent oil and fumes in the accommodating cavity from wetting and contaminating the sensor, completely solving the core pain point of traditional solutions where the sensor is easily contaminated and the signal is distorted when exposed to an oily environment. At the same time, it avoids the sensor performance degradation caused by oil corrosion, and greatly improves the long-term stability and accuracy of detection.

[0020] This application incorporates a specially structured support panel within the fume extraction device. Firstly, this integrated plate-like structure passes through the oil cup's clearance section and is positioned above the receiving cavity, precisely engaging with the first and second force-bearing surfaces of the oil cup and the third force-bearing surface of the support platform to form a stable multi-point support structure. This ensures the stability of the oil cup after installation and provides a balanced force base for the gravity sensor's weighing detection. Secondly, the oil passage holes on the support panel, combined with the external arc-shaped oil guide plate, accurately guide oil from the fume extraction device into the oil cup's receiving cavity, preventing accidental detection due to random oil dripping. Furthermore, the integrated structure simplifies the assembly process, making the adaptation of the oil cup and the fume extraction device more efficient, further enhancing the overall reliability and practicality of the device. Attached Figure Description

[0021] The attached diagram will be briefly described below:

[0022] Figure 1 This is a schematic diagram of the overall structure of the oil cup;

[0023] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0024] Figure 3 This is a schematic diagram of the overall structure of the fume extraction device;

[0025] Figure 4 This is a structural diagram of the supporting panel;

[0026] Reference numerals: 100, body; 110, accommodating cavity; 120, gravity sensor; 130, mounting part; 131, first force-bearing surface; 140, support platform; 141, second force-bearing surface; 142, third force-bearing surface; 150, side wall of body; 160, end wall of body; 200, fume extraction device; 210, support panel; 211, oil passage hole; 212, arc-shaped oil guide plate; 300, clearance part. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Those skilled in the art will be able to implement the present invention based on these descriptions. Furthermore, the embodiments of the present invention described below are generally only a part of the embodiments of the present invention, and not all of the embodiments. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0028] Example 1

[0029] An oil cup includes a body 100 with an opening at the top. The body 100 has an internal cavity 110 for collecting oil. A gravity sensor 120 for detecting the weight of the oil cup and its contents is disposed inside the cavity 110. The gravity sensor 120 is fixed to the inner wall of the cavity 110 and is covered by a sensor protective cover to prevent oil from seeping in. Furthermore, the gravity sensor 120 is electrically connected to an indicator for displaying oil information. When the gravity sensor 120 detects that the mass of the oil cup and its contents reaches a threshold, it will trigger an alarm, prompting the user to clean the oil cup.

[0030] In this embodiment, the main body 100 has a mounting portion 130 for fixing the oil cup to the fume extraction device 200. The mounting portion 130 is provided with a first force-bearing surface 131 for abutting against the fume extraction device 200. The gravity sensor 120 has a protruding support platform 140 for weighing. The support platform 140 includes a second force-bearing surface 141 for abutting against the fume extraction device 200. When the oil cup is installed on the fume extraction device 200, the combined force on the first force-bearing surface 131 and the second force-bearing surface 141 is equal to the total weight of the oil cup and its contents. Therefore, as the amount of oil inside the accommodating cavity 110 gradually increases, the gravity borne by the first force-bearing surface 131 and the second force-bearing surface 141 will gradually increase, and the corresponding value detected by the gravity sensor 120 will also gradually increase. To facilitate the analysis of the force magnitude of the first force-bearing surface 131 and the second force-bearing surface 141 by the gravity sensor 120, in this embodiment, the first force-bearing surface 131 and the second force-bearing surface 141 are on the same horizontal plane, and when the oil cup is installed on the fume extraction device 200, the force magnitude of the first force-bearing surface 131 and the second force-bearing surface 141 is equal.

[0031] Specifically, in this embodiment, the body 100 includes two opposing body sidewalls 150 and a set of body endwalls 160 disposed between the body sidewalls 150. The body sidewalls 150 extend along the installation direction of the oil cup, and the mounting portion 130 extends from the upper edge of one body sidewall 150 toward the opposite body sidewall 150. In this embodiment, a set of mounting portions 130 is correspondingly provided, and a set of mounting portions 130 are respectively disposed on the opposing body sidewalls 150. To facilitate installation, in this embodiment, the upper end of the body endwall 160 is lower than the mounting portion 130, so as to form a clearance portion 300 between the mounting portion 130 and the body endwall 160.

[0032] Example 2

[0033] This embodiment discloses a fume extraction device, including the oil cup described in Embodiment 1. To facilitate the installation of the oil cup, the fume extraction device 200 of this embodiment is further provided with a support panel 210 for cooperating with the first force-bearing surface 131 and the second force-bearing surface 141. The support panel 210 is an integral plate structure. During installation, the support panel 210 passes through the clearance portion 300 and is distributed above the receiving cavity 110. The support panel 210 has an oil passage hole 211 for oil droplets to pass through, and an arc-shaped oil guide plate 212 for guiding oil into the oil passage hole is also provided outside the oil passage hole. The support platform 140 is also provided with a third force-bearing surface 142 for abutting against the end of the support panel 210.

[0034] During installation, first align the integrated support panel 210 of the fume extraction device with the clearance part 300 of the oil cup. Then, smoothly slide the oil cup into the assembly position along the extension direction of the side wall 150 of the main body. No complicated alignment operation is required during the process. The clearance part 300 effectively avoids structural interference between the oil cup and the support panel 210, making the installation smoother. After the oil cup is fully in place, the first force-bearing surface 131 of the main body mounting part 130, the second force-bearing surface 141 and the third force-bearing surface 142 of the gravity sensor support platform 140 make precise contact with the support panel 210. Moreover, the first force-bearing surface 131 and the second force-bearing surface 141 are on the same horizontal plane and evenly distribute the weight of the oil cup and its own weight in the initial state, forming a stable multi-point support structure. This not only ensures the stability of the oil cup after installation, but also lays a balanced force foundation for subsequent weight detection.

[0035] During operation, the oil generated by the fume extraction device is precisely guided by the arc-shaped oil guide plate 212 to the oil passage hole 211 of the support panel 210, and finally drips into the receiving cavity 110 of the oil cup, avoiding false triggering of detection caused by random oil dripping. As the oil accumulates, the total weight of the oil cup and its contents gradually increases. This weight is evenly transmitted through the first force-bearing surface 131 and the second force-bearing surface 141. Since the forces on both are equal, the gravity sensor 120 can quickly calculate the actual amount of oil accumulated through a multiplier conversion, making the calculation logic simple and efficient. At the same time, the sensor protective cover effectively prevents the oil and fumes in the receiving cavity from wetting and contaminating the gravity sensor 120, avoiding the problems of sensor contamination and signal distortion in traditional solutions. When the detected oil weight reaches the preset threshold, the gravity sensor 120 immediately triggers an alarm, accurately reminding the user to clean it in time. The symmetrically distributed mounting parts 130 further ensure that the oil cup will not tilt or loosen due to uneven force during long-term use, significantly improving the accuracy of detection and the overall stability of the device.

Claims

1. An oil cup, comprising a body (100) with an opening at the top, wherein the body (100) has an internal cavity (110) for receiving oil, and wherein a gravity sensor (120) for detecting the weight of the oil cup and its contents is disposed inside the cavity (110), the gravity sensor (120) being electrically connected to an indicator for displaying oil information; characterized in that, The main body (100) has a mounting portion (130) for fixing the oil cup to the fume extraction device (200). The mounting portion (130) is provided with a first force-bearing surface (131) for abutting against the fume extraction device (200). The gravity sensor (120) is provided with a support platform (140) for weighing. The support platform (140) includes a second force-bearing surface (141) for abutting against the fume extraction device (200). When the oil cup is installed on the fume extraction device (200), the sum of the forces on the first force-bearing surface (131) and the second force-bearing surface (141) is equal to the total weight of the oil cup and its contents.

2. The oil cup according to claim 1, characterized in that, The first force-bearing surface (131) and the second force-bearing surface (141) are on the same horizontal plane, and when the oil cup is installed on the oil fume extraction device (200), the magnitude of the force on the first force-bearing surface (131) and the second force-bearing surface (141) is equal.

3. An oil cup according to claim 1, characterized in that, The body (100) includes two opposing body sidewalls (150), which extend along the installation direction of the oil cup, and the mounting part (130) extends from the upper edge of one body sidewall (150) toward the opposite body sidewall (150).

4. An oil cup according to claim 3, characterized in that, At least one set of the mounting parts (130) are provided, and one set of the mounting parts (130) are respectively arranged on the opposite sidewalls (150) of the main body.

5. An oil cup according to claim 3, characterized in that, The body (100) includes a set of body end walls (160) disposed between the body side walls (150), and the upper end of at least one of the body end walls (160) is lower than the mounting portion (130) to form a clearance portion (300) between the mounting portion (130) and the body end wall (160).

6. An oil cup according to claim 1, characterized in that, The gravity sensor (120) is fixed on the inner wall of the accommodating cavity (110), and its exterior is covered with a sensor protective cover to prevent oil stains from seeping in.

7. A fume extraction device, characterized in that, It includes the oil cup as described in any one of claims 1 to 6.

8. The fume extraction device according to claim 7, characterized in that, The fume extraction device (200) is also provided with a support panel (210) for cooperating with the first force-bearing surface (131) and the second force-bearing surface (141).

9. A fume extraction device according to claim 8, characterized in that, The support panel (210) is an integral plate structure. During installation, the support panel (210) passes through the clearance part (300) and is distributed above the accommodating cavity (110). The support panel (210) is provided with an oil passage hole (211) for oil droplets to pass through, and an arc-shaped oil guide plate (212) for guiding oil into the oil passage hole is also provided outside the oil passage hole.

10. The fume extraction device according to claim 8, characterized in that, The support platform (140) is also provided with a third force-bearing surface (142) for contacting the end of the support panel (210).

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