Weighing device and intelligent vacuum cup

Abstract

The utility model discloses a weighing device and an intelligent vacuum cup, the weighing device comprises a pedestal upper cover and a plurality of weighing sensors, and the pedestal upper cover is circumferentially provided with a plurality of sensor mounting grooves; and the plurality of weighing sensors are mounted on the sensor mounting grooves and are electrically connected with the main control circuit board. Wherein the plurality of sensor mounting grooves are uniformly distributed at equal included angles along the circumferential direction of the base upper cover. The device measures the weight through a plurality of weighing sensors, and the weighing precision is improved; meanwhile, the multiple weighing sensors are distributed in the circumferential direction of the upper cover of the base to form a stable supporting structure, the problem that the cup body and the base are connected only through a single sensor, and consequently shaking is caused is solved, and the vacuum cup is more stable and reliable in the daily use process.

Description

Technical Field

[0001] This utility model relates to the field of intelligent thermos cup weighing, and in particular to a weighing device and an intelligent thermos cup. Background Technology

[0002] As people pay increasing attention to healthy drinking water, smart insulated cups are becoming more and more popular. Currently, there are two main technical approaches to the weighing solutions for insulated cups on the market: one is the balance beam weighing sensor solution, which measures weight changes by sensing the deformation of the silicone at the bottom; the other is the half-bridge weighing strain gauge solution, which senses deformation and measures weight changes by having the strain gauge directly contact the cup body.

[0003] Taking the balanced beam load cell solution for a thermos cup as an example, to ensure weighing accuracy and full detection of silicone deformation, the base thickness must be increased. This design results in a larger overall base size and excessive thickness, severely impacting the product's aesthetics and making the cup appear less refined. In contrast, the half-bridge strain gauge solution, because the cup and base are only connected by the load cell, suffers from significant structural stability issues due to the relatively weak strength of the strain gauge itself. This is particularly evident when placing the cup, causing noticeable wobbling and severely affecting the user experience.

[0004] In addition, both solutions share the following common problems: single-point weighing structures are prone to fatigue damage during long-term use, affecting the service life of the weighing device; the contact structure between the sensor and the thermos cup is simple and lacks a reliable force transmission mechanism, making the sensor susceptible to damage due to impact during use; in terms of sensor signal processing, the single-point data acquisition method is easily affected by external factors such as environmental vibration and temperature changes, resulting in unstable measurement data and reducing the reliability of the weighing device. Utility Model Content

[0005] The purpose of this invention is to provide a weighing device and an intelligent thermos cup to solve the problems of large base thickness and unstable weighing in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model provides a weighing device and a smart thermos cup, the weighing device comprising:

[0007] The base cover has multiple sensor mounting slots arranged circumferentially.

[0008] Multiple load cells are installed in the sensor mounting slots and electrically connected to the main control circuit board;

[0009] The plurality of sensor mounting slots are distributed at equal included angles along the circumference of the base cover.

[0010] Furthermore, the adjacent sensor mounting slots are arranged vertically along the circumference of the base cover.

[0011] Furthermore, the sensor mounting slot is U-shaped, and a threaded hole is provided near the closed end of the sensor mounting slot;

[0012] One end of the weighing sensor is connected to the sensor mounting slot via a connector and a threaded hole, while the other end is not fixed, thus forming a seesaw structure for the weighing sensor.

[0013] Furthermore, the weighing sensor has a sheet-like structure.

[0014] Furthermore, the thickness of the weighing sensor is 1.9-2.1 mm.

[0015] A smart thermos cup includes the aforementioned weighing device, a diffuser, and a cup body; the cup body is connected to the diffuser via a fastener; the diffuser is positioned above the base cover, and its lower surface has a connecting structure, with the weighing sensor abutting against the connecting structure.

[0016] Furthermore, the connection structure includes:

[0017] The ribs are distributed circumferentially, corresponding one-to-one with the weighing sensors, and abut against the non-fixed end of the weighing sensors.

[0018] The buckle includes the portion of the outer wall of the reinforcing rib that extends vertically and laterally outward;

[0019] A stepped structure is formed between the reinforcing rib and the buckle, and the other end of the weighing sensor is placed inside the stepped structure.

[0020] Furthermore, it also includes a lower base cover; the lower base cover and the upper base cover are connected by a fastener.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects:

[0022] This invention employs a design with multiple weighing sensors to measure weight, thereby improving weighing accuracy. The use of sheet-like weighing sensors reduces the weight of the device. Furthermore, the multiple weighing sensors are distributed circumferentially along the base cover, forming a stable support structure. This solves the wobbling problem caused by the cup body and base being connected only by a single sensor, making the thermos cup more stable and reliable during daily use.

[0023] Furthermore, the seesaw structure design of the load cell enables it to undergo stable deformation under force, thus improving weighing sensitivity. The pressure ribs at the lower end of the diffuser form a reliable force transmission structure with the load cell, and the snap-fit ​​fixing method ensures a stable connection between the cup body and the base. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a smart thermos cup according to one embodiment of the present invention;

[0025] Figure 2 for Figure 1 AA section view;

[0026] Figure 3 for Figure 2 Enlarged view of part B in the image;

[0027] Figure 4 This is a partial structural schematic diagram of the weighing device in one embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the diffuser in one embodiment of the present invention.

[0029] Reference numerals: 1. Weighing sensor; 2. Sensor mounting slot; 3. Base top cover; 4. Diffuser cover; 5. Pressure rib; 6. Buckle; 7. Cup body; 8. Base bottom cover. Detailed Implementation

[0030] The following is a more detailed description of a weighing device and a smart thermos cup according to the present invention, with reference to the accompanying drawings, which illustrate preferred embodiments of the present invention. It should be understood that those skilled in the art can modify the present invention described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the present invention.

[0031] The present invention will be described in more detail below by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0032] like Figure 4 As shown, this utility model embodiment proposes a weighing device, including:

[0033] The base cover 3 has multiple sensor mounting slots 2 arranged circumferentially.

[0034] Multiple load cells 1 are installed on the sensor mounting slots 2 and are electrically connected to the main control circuit board in parallel. This allows the signals from each sensor to be aggregated and processed by the main control circuit board. Even if the thermos cup is not perfectly centered, the aggregation and processing of signals from multiple sensors can ensure the reliability of the weighing results and further enhance the device's resistance to off-center loads.

[0035] The plurality of sensor mounting slots 2 are distributed at equal included angles along the circumference of the base cover 3, ensuring that the plurality of weighing sensors 1 are stably arranged within the base cover 3. This layout ensures that the weight of the thermos is evenly distributed across the sensors, resulting in a relatively balanced weight distribution on each sensor. This avoids weighing errors or sensor damage caused by excessive localized stress, thus making the thermos more stable and reliable during weighing.

[0036] In this embodiment, the number of sensor mounting slots 2 is set according to the number of weighing sensors 1. Adjacent sensor mounting slots 2 are arranged vertically along the circumference of the base cover 3, so that the thermos cup has multiple points of support and the weighing sensors 1 are evenly stressed.

[0037] In a preferred embodiment, the sensor mounting slots 2 are configured with four slots. When the thermos cup is placed on the weighing device, the weight of the thermos cup is shared by the four weighing sensors 1. The weight borne by each weighing sensor 1 is relatively balanced, effectively avoiding weighing errors caused by excessive force at a single point. Even if the thermos cup is placed off-center, the coordinated action of the four weighing sensors 1 can ensure the accuracy of the weighing data.

[0038] It is understood that the number of weighing sensors 1 can also be other options, such as 2, 3, or 5 or more. Among them, 3 or more is preferred.

[0039] In this embodiment, the sensor mounting slot 2 is U-shaped. The U-shaped mounting slot design can provide installation space for the weighing sensor 1, and the two side walls of the U-shaped slot can provide good support for the sensor, ensuring that the sensor will not tilt or shift during installation, so that it can be stably installed in the base cover 3, while avoiding interference with other components.

[0040] Furthermore, a threaded hole is provided near the closed end of the sensor mounting slot 2. One end of the load cell 1 is connected to the closed end of the sensor mounting slot 2 via a connector and the threaded hole, while the other end is not fixed, thus forming a seesaw structure for the load cell 1. Fixing one end of the load cell 1 to the closed end of the sensor mounting slot 2 via the threaded hole and the connector ensures a stable connection between the load cell 1 and the base cover 3, effectively transferring the weight of the thermos cup to the load cell 1. The seesaw structure with the other end unfixed allows the load cell 1 to move freely up and down under load. This design allows the load cell 1 to automatically adjust its load state when the thermos cup is placed off-center or under uneven load, thereby distributing the weight more evenly and reducing measurement errors caused by uneven load.

[0041] In addition, the unfixed free end can play a buffering role to a certain extent, reducing the impact on the weighing sensor 1 caused by sudden loading or shaking, and further improving the reliability and stability of the device.

[0042] In a preferred embodiment, the load cell 1 has a sheet-like structure. Sheet-like load cells typically have a simpler structure and higher measurement accuracy, can be accommodated in smaller installation spaces, and can also reduce the overall weight of the device.

[0043] Furthermore, the thickness of the weighing sensor 1 is 1.9-2.1mm. This thin design not only reduces the weight of the sensor itself, but also enables it to respond quickly to weight changes, thereby improving the space utilization, sensitivity and dynamic response capability of the weighing device.

[0044] Based on this embodiment, the present invention also proposes a smart thermos cup, such as... Figures 1-3 and Figure 5 As shown, the smart thermos cup includes the aforementioned weighing device, as well as a diffuser 4 and a cup body 7.

[0045] Specifically, the cup body 7 is connected to the diffuser 4 via a fixing member; the diffuser 4 is located above the base cover 3, and its lower surface is provided with a connecting structure. The weighing sensor 1 abuts against the connecting structure, thereby ensuring that the weight of the thermos cup can be accurately transmitted to the weighing sensor 1.

[0046] In this embodiment, the connection structure includes a reinforcing rib 5 and a snap fastener 6.

[0047] The pressure ribs 5 are distributed circumferentially along the lower surface of the diffuser 4, corresponding one-to-one with each of the weighing sensors 1, and abutting against the non-fixed ends of the weighing sensors 1. This structural design ensures that the weight of the thermos cup is evenly distributed to each weighing sensor 1 via the pressure ribs 5, guaranteeing accurate weight data acquisition. Furthermore, the precise cooperation between the pressure ribs 5 and the weighing sensors 1 not only improves weighing accuracy but also enhances the structural stability and reliability of the entire device, effectively avoiding weighing errors or structural deformation caused by uneven local stress.

[0048] The buckle 6 includes a portion extending vertically and laterally outward from the outer wall of the reinforcing rib 5, forming a stepped structure between the reinforcing rib 5 and the buckle 6. The other end of the load cell 1 is placed within the stepped structure. The stepped structure provides stable support and precise positioning for the load cell 1, ensuring that the load cell 1 remains fixed during operation and avoiding measurement errors caused by shaking or displacement. Even under off-center loading, the load cell 1 can maintain balanced force through the support of the stepped structure, thereby reducing the impact of off-center loading on weighing accuracy.

[0049] Additionally, please refer to Figure 4 and Figure 5 The base cover 3 has multiple openings of different sizes around its perimeter, which allows the base cover 3 and the diffuser 4 to be installed together, thereby connecting the pressure rib 5 and the buckle 6 to the weighing sensor 1 in a one-to-one correspondence.

[0050] In this embodiment, the thermos cup also includes a lower base cover 8, which is connected to the upper base cover 3 by a fastener, enhancing the rigidity of the entire base and enabling it to better support the weight of the thermos cup, thereby improving its durability. Preferably, the main control circuit board can be installed between the lower base cover 8 and the upper base cover 3, effectively preventing the main control circuit board from being interfered with by external factors and making the assembly of the entire thermos cup more compact.

[0051] In summary, this utility model adopts a design scheme with multiple weighing sensors, which improves weighing accuracy through measurement. At the same time, the multiple weighing sensors are distributed circumferentially along the base cover to form a stable support structure, solving the shaking problem caused by the cup body and base being connected by only a single sensor, making the thermos cup more stable and reliable in daily use.

[0052] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A weighing device, characterized in that, include: The base cover has multiple sensor mounting slots arranged circumferentially. Multiple load cells are installed in the sensor mounting slots and electrically connected to the main control circuit board; The plurality of sensor mounting slots are distributed at equal included angles along the circumference of the base cover.

2. The weighing device as described in claim 1, characterized in that, The adjacent sensor mounting slots are arranged vertically along the circumference of the base cover.

3. The weighing device as described in claim 1, characterized in that, The sensor mounting slot is U-shaped, and a threaded hole is provided near the closed end of the sensor mounting slot; One end of the weighing sensor is connected to the sensor mounting slot via a connector and a threaded hole, while the other end is not fixed, thus forming a seesaw structure for the weighing sensor.

4. The weighing device as described in claim 1, characterized in that, The weighing sensor has a sheet-like structure.

5. The weighing device as described in claim 4, characterized in that, The thickness of the weighing sensor is 1.9-2.1 mm.

6. A smart thermos cup, characterized in that, The weighing device as described in any one of claims 1-5 further includes a diffuser and a cup body; The cup body is connected to the diffuser via a fastener; The diffuser is positioned above the base cover, and a connecting structure is provided on its lower surface. The weighing sensor abuts against the connecting structure.

7. The smart thermos cup as described in claim 6, characterized in that, The connection structure includes: The ribs are distributed circumferentially, corresponding one-to-one with the weighing sensors, and abut against the non-fixed end of the weighing sensors. The buckle includes the portion of the outer wall of the reinforcing rib that extends vertically and laterally outward; A stepped structure is formed between the reinforcing rib and the buckle, and the other end of the weighing sensor is placed inside the stepped structure.

8. The smart thermos cup as described in claim 6, characterized in that, It also includes a lower base cover; the lower base cover and the upper base cover are connected by a fastener.

Images