Kitchenware sterilizer and its center of gravity adjustment method

Abstract

This application relates to a kitchen utensil sterilizer and its center of gravity adjustment method. By acquiring the center of gravity sensing signal from a center of gravity sensing device, when a new object is sensed, the actual center of gravity position of the sterilizer is obtained. If it is determined that the actual center of gravity position is not in the target stable area, the center of gravity sensing signal is analyzed to obtain the first mass and first position of the new object. Then, based on the second mass, the first mass, and the first position of the center of gravity adjustment device, calculations are performed to determine the center of gravity adjustment data used to adjust the center of gravity position. A center of gravity adjustment command is output to the center of gravity adjustment device, adjusting the actual center of gravity position back to the target stable area. When a cutting board or knife is placed in the sterilizer, the actual center of gravity position can be automatically acquired, and the center of gravity of the sterilizer can be automatically adjusted so that the adjusted actual center of gravity position returns to the target stable area. This significantly improves the stability of the sterilizer and reduces the risk of tipping over.

Description

Technical Field

[0001] This application relates to the field of intelligent kitchen appliances technology, and in particular to a kitchen appliance sterilizer and its center of gravity adjustment method. Background Technology

[0002] With the improvement of living standards, people's demand for kitchen utensils disinfection is increasing, and kitchen utensil sterilizers, as an emerging kitchen appliance, have broad market prospects. Even after washing, cutting boards and knives still retain bacteria and viruses. Placing cutting boards and knives in a kitchen utensil sterilizer for efficient sterilization can ensure the health and safety of family members.

[0003] To improve space utilization and achieve the goal of reducing floor space while increasing storage capacity, kitchen utensil sterilizers with a "larger top, smaller bottom" shape have appeared on the market. These sterilizers occupy a small countertop area but have a large capacity, providing more storage space to accommodate more cutting boards and knives. However, the small base design also brings a new problem—an increased risk of tipping over. Especially when loading heavy cutting boards or placing knives together, the product is prone to losing balance and tipping over due to uneven weight distribution. Summary of the Invention

[0004] Therefore, it is necessary to address the issue of traditional kitchen sterilizers being prone to tipping over by providing a kitchen sterilizer with improved stability and reduced tipping risk, along with a method for adjusting its center of gravity.

[0005] A method for adjusting the center of gravity of a kitchen utensil sterilizer, the method comprising:

[0006] Obtain the center of gravity sensing signal from the center of gravity sensing device of the kitchen sterilizer;

[0007] When a new object is detected, the actual center of gravity of the kitchen sterilizer is obtained.

[0008] If it is determined that the actual center of gravity position is not in the target stable region, the center of gravity sensing signal is analyzed to obtain the first mass and first position of the newly added object. The target stable region is obtained when the kitchen sterilizer is in an unloaded state.

[0009] The center of gravity adjustment data is obtained by calculating the second mass of the center of gravity adjustment device, the first mass, and the first position.

[0010] Based on the center of gravity adjustment data, a center of gravity adjustment command is output to the center of gravity adjustment device of the kitchen sterilizer to adjust the actual center of gravity position back to the target stable area.

[0011] In one embodiment, the step of parsing the center of gravity sensing signal to obtain the first mass and first position of the newly added object includes:

[0012] Obtain the third mass and third position of the kitchen sterilizer before the new object is placed inside;

[0013] Based on the third mass and the third position, the torque signal and coordinate signal in the center of gravity sensing signal are analyzed to obtain the first mass and the first position.

[0014] In one embodiment, the center of gravity adjustment device includes at least one adjustment unit, the adjustment unit includes at least a driving component and a counterweight, the counterweight moves back and forth under the drive of the driving component, and the center of gravity adjustment data includes adjustment distance and adjustment direction;

[0015] The center-of-gravity adjustment device that outputs center-of-gravity adjustment commands to the kitchen sterilizer based on the center-of-gravity adjustment data includes:

[0016] The target adjustment unit is selected based on the adjustment direction and the adjustment distance;

[0017] The drive component of the target adjustment unit outputs the center of gravity adjustment command to adjust the adjustment distance in the adjustment direction.

[0018] In one embodiment, the step of selecting the target adjustment unit based on the adjustment direction and the adjustment distance includes:

[0019] Obtain the adjustable distance that each adjustment unit moves in the adjustment direction;

[0020] Any adjustment unit whose adjustable distance is greater than or equal to the adjustment distance is selected as the target adjustment unit;

[0021] If there is no adjustment unit whose adjustable distance is greater than or equal to the adjustment distance, at least two adjustment units whose sum of adjustable distances is greater than the adjustment distance are selected as the target adjustment units.

[0022] In one embodiment, the method further includes:

[0023] If it is determined that the actual center of gravity position is not at the origin of the center of gravity, the step of parsing the center of gravity sensing signal to obtain the first mass and first position of the newly added object is performed.

[0024] In one embodiment, the method for obtaining the origin position of the center of gravity and the target stable region includes:

[0025] Obtain the unloaded center of gravity sensing signal of the kitchen sterilizer when it is in an unloaded state;

[0026] The coordinate signal in the unloaded center of gravity sensing signal is taken as the position of the center of gravity origin;

[0027] The target stable region is constructed with the origin of the center of gravity as the center and the dimensions of the chassis of the kitchen sterilizer as the boundary.

[0028] In one embodiment, this application also provides a kitchenware sterilizer, the kitchenware sterilizer comprising:

[0029] The body has an internal cavity that is divided into at least two utensil placement areas.

[0030] A tool holder, which is disposed on the upper part of the machine body;

[0031] The chassis is located at the bottom of the machine body;

[0032] A center of gravity sensing device is located at the center of the chassis;

[0033] A center of gravity adjustment device is located inside the chassis;

[0034] A control device, connected to the center of gravity sensing device and the center of gravity adjustment device, is used to control the internal state changes of the center of gravity adjustment device according to the above-described center of gravity adjustment method, so as to adjust the center of gravity position of the kitchenware sterilizer.

[0035] In one embodiment, the receiving cavity protrudes to one side of the body.

[0036] In one embodiment, the projected area of ​​the receiving cavity perpendicular to the chassis direction is larger than the area of ​​the chassis.

[0037] In one embodiment, the center of gravity adjustment device includes at least one adjustment unit, the adjustment unit including at least a driving component and a counterweight, the counterweight reciprocating under the drive of the driving component.

[0038] In one embodiment, the counterweight reciprocates along the width direction of the chassis under the drive of the driving component.

[0039] In one embodiment, the center of gravity adjustment device includes two adjustment units arranged side by side along the length of the chassis.

[0040] In one embodiment, the drive components of the two adjustment units are mounted on the same side of the chassis.

[0041] In one embodiment, the drive component is an electric telescopic rod.

[0042] In one embodiment, the center of gravity sensing device includes a plurality of force sensors, which are evenly distributed in a preset area centered on the center position of the chassis.

[0043] In one embodiment, the receiving cavity is divided into at least two stepped areas for placing kitchen utensils.

[0044] The aforementioned kitchen utensil sterilizer and its center of gravity adjustment method acquire the center of gravity sensing signal from the sterilizer's center of gravity sensing device. When a new object is sensed, the actual center of gravity position of the sterilizer is obtained. If the actual center of gravity position is not within the target stable area, the center of gravity sensing signal is analyzed to obtain the first mass and first position of the new object. Then, based on the second mass, first mass, and first position of the center of gravity adjustment device, calculations are performed to determine the center of gravity adjustment data used to adjust the center of gravity position. Based on the center of gravity adjustment data, a center of gravity adjustment command is output to the sterilizer's center of gravity adjustment device to adjust the actual center of gravity position back to the target stable area. Throughout the process, when objects such as cutting boards or knives are placed in the sterilizer, the actual center of gravity position of the sterilizer is automatically acquired, and the sterilizer's center of gravity is automatically adjusted to ensure that the adjusted actual center of gravity position returns to the target stable area. This significantly improves the stability of the sterilizer and reduces the risk of tipping over. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram of the structure of a kitchen utensil sterilizer in one embodiment;

[0047] Figure 2 This is a flowchart illustrating a center-of-gravity adjustment method in one embodiment;

[0048] Figure 3 This is a schematic diagram of the regional distribution of the kitchen sterilizer in the left view of one embodiment;

[0049] Figure 4 This is a schematic diagram of the regional distribution of the kitchen sterilizer in a top view of one embodiment;

[0050] Figure 5 This is a flowchart illustrating the steps for determining the mass and position of a newly added object in one embodiment.

[0051] Figure 6This is a schematic diagram of the installation of the center of gravity adjustment device in one embodiment;

[0052] Figure 7 This is a schematic diagram of the state of the center of gravity adjustment device in one embodiment;

[0053] Figure 8 This is a flowchart illustrating the steps of adjusting the center of gravity adjustment device in one embodiment;

[0054] Figure 9 This is a flowchart illustrating the step of determining the target adjustment unit in one embodiment;

[0055] Figure 10 This is a flowchart illustrating the steps for determining the target stable region in one embodiment;

[0056] Figure 11 This is a schematic diagram of the fuselage structure in one embodiment;

[0057] Figure 12 This is a flowchart illustrating the control method of a kitchen utensil sterilizer in one embodiment;

[0058] Figure 13 This is a flowchart illustrating the control method of a kitchen sterilizer in another embodiment. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0060] As described in the background section, in order to improve space utilization and achieve the goal of reducing countertop area while expanding storage capacity, kitchen utensil sterilizers with a larger top and smaller bottom have appeared on the market. Their compact design reduces countertop space occupation and provides a larger storage cavity to accommodate more cutting boards and knives. However, the small bottom area design also brings new problems—increased risk of tipping over. Especially when loading heavy cutting boards or placing knives together, changes in the center of gravity can easily cause the device to become unbalanced. Due to uneven weight distribution, the product is prone to losing balance and tipping over.

[0061] In related technologies, several solutions exist to address the technical problem of these devices easily becoming unbalanced and tipping over. One approach is wall-mounted installation, including adhesive wall-mounted and recessed wall-mounted types. While adhesive wall-mounted devices save space, they pose a risk of falling in humid environments; recessed wall-mounted devices are more stable, but replacement and maintenance are more inconvenient, and require modifications to the kitchen wall, potentially disrupting the original decor. Another approach involves adjusting the height of the bottom support legs to balance the center of gravity and reduce the risk of tipping. However, adjusting the support leg height inevitably changes the overall tilt angle of the device, limiting its usability, for example, making it difficult to implement when placed against a wall.

[0062] Based on this, this application provides a kitchen utensil sterilizer and its center of gravity adjustment method. A gravity sensor and a center of gravity adjustment device are added to the bottom of the sterilizer. By sensing the addition of an object, and when the addition causes the actual center of gravity to deviate from the target stable area, center of gravity adjustment data is obtained based on the center of gravity sensing signal. A center of gravity adjustment command is then output to the center of gravity adjustment device to adjust the actual center of gravity back to the target stable area. In other words, this application can automatically adjust the center of gravity based on the weight of objects such as cutting boards or knives placed inside the sterilizer during operation, ensuring that the sterilizer's center of gravity remains in a target stable area that is not prone to tipping over, reducing the risk of tipping and ensuring the stability and safety of the equipment.

[0063] Figure 1 The diagram shown is an exploded view of a kitchen utensil sterilizer provided in an embodiment of this application. In an exemplary embodiment, refer to... Figure 1 The kitchen utensil sterilizer includes a knife holder 1, a body 2, a chassis 4, a center of gravity adjustment device 5, a center of gravity sensing device 6, and a control device 7. In some embodiments, the kitchen utensil sterilizer may also include a water baffle plate 3.

[0064] The machine body 2 has an internal cavity that divides into at least two utensil placement areas. A knife holder 1 is located on the upper part of the machine body 2. A chassis 4 is located at the bottom of the machine body 2. A center-of-gravity sensor 6 is located at the center of the chassis 4, and a center-of-gravity adjustment device 5 is located inside the chassis 4. A control device 7 is connected to the center-of-gravity sensor 6 and the center-of-gravity adjustment device 5. The control device 7 executes various center-of-gravity adjustment methods provided in this embodiment to control the internal state changes of the center-of-gravity adjustment device 5, thereby adjusting the center-of-gravity position of the utensil sterilizer to significantly reduce the risk of tipping over.

[0065] Among them, the control device 7 can be as follows: Figure 1The control chip or control circuit board shown on the kitchen sterilizer can also be an external control system based on wireless communication. The external control system can be implemented through devices such as terminals or servers. Terminals can be, but are not limited to, various personal computers, laptops, smartphones, tablets, IoT devices, and portable wearable devices. IoT devices can include smart speakers, smart TVs, smart air conditioners, smart in-vehicle systems, and projection devices. Portable wearable devices can include smartwatches, smart bracelets, and head-mounted displays. Head-mounted displays can be virtual reality (VR) devices, augmented reality (AR) devices, and smart glasses. Servers can be independent physical servers, server clusters or distributed systems composed of multiple physical servers, or cloud servers providing cloud computing services.

[0066] The method for adjusting the center of gravity of the kitchen sterilizer provided in this application embodiment can be applied to, for example... Figure 1 The application environment shown. In an exemplary embodiment, such as Figure 2 As shown, a center of gravity adjustment method is provided, which can be applied to... Figure 1 Taking the control device 7 as an example, the description includes the following steps S202 to S210. Wherein:

[0067] Step S202: Obtain the center of gravity sensing signal of the center of gravity sensing device of the kitchen sterilizer.

[0068] Specifically, the center of gravity sensing device is located at the center of the chassis of the kitchen utensil sterilizer to sense the gravity distribution of the kitchen utensil sterilizer in various directions and output a center of gravity sensing signal.

[0069] The base of the kitchen utensil sterilizer is the area where it contacts the kitchen countertop; it can be understood as the supporting surface of the sterilizer, that is, the area formed by all the points where the sterilizer contacts its support. The center-of-gravity sensor is installed at the center of the supporting surface, and the output center-of-gravity signal can more accurately reflect the actual center-of-gravity position of the sterilizer.

[0070] It is understandable that for a kitchen sterilizer with a cuboid shape, its base is generally rectangular, and the center of gravity sensing device is specifically set at the center of the rectangular area of ​​the base.

[0071] The center-of-gravity sensing signal from the center-of-gravity sensing device converts the object's center-of-gravity offset into a quantifiable output signal through a mechanical-electrical conversion mechanism. This signal includes various types of signals, such as torque signals, coordinate signals, and attitude signals. The control device can acquire these various signal types of center-of-gravity sensing signals in real time by connecting to the center-of-gravity sensing device, serving as the data basis for subsequent center-of-gravity position identification and adjustment.

[0072] Step S204: When a new object is sensed, obtain the actual center of gravity position of the kitchen sterilizer.

[0073] The newly added object represents a new object placed in the kitchenware placement area of ​​the kitchenware sterilizer. This object can be a cutting board, a knife, or other kitchenware that requires sterilization.

[0074] Specifically, the method of detecting new objects is not limited; it can be detected by other sensors installed on the kitchenware sterilizer. For example, a sensor can be installed at the entrance of the kitchenware placement area to detect whether a new object has been added. Alternatively, a weight sensor can be installed at the bottom of the kitchenware sterilizer to detect whether a new object has been added.

[0075] In one example, the presence of a new object can also be detected based on the center of gravity sensing signal. Step S204 may include: determining that a new object has been detected when the overall mass of the kitchen sterilizer changes as determined by the force signal obtained from the center of gravity sensing signal, and outputting the actual center of gravity position of the kitchen sterilizer based on the coordinate signal in the center of gravity sensing signal.

[0076] It is understandable that placing a new object in the kitchen utensil placement area will inevitably cause a change in the center of gravity sensing signal. However, the change in the center of gravity sensing signal may also be caused by a change in the position of existing objects in the kitchen utensil placement area. Therefore, in this embodiment, the change in the overall mass of the kitchen utensil sterilizer is obtained by measuring the force signal from the center of gravity sensing signal to sense whether a new object has been added to the kitchen utensil placement area. This can be achieved by using Newton's second law to obtain the overall mass of the kitchen utensil sterilizer, that is, by using the force signal from the center of gravity sensing signal and the acceleration due to gravity to obtain the overall mass of the kitchen utensil sterilizer.

[0077] Furthermore, when a new object is detected, the actual center of gravity position of the kitchen sterilizer needs to be obtained to determine whether there is a risk of tipping over. The method for obtaining the actual center of gravity position of the kitchen sterilizer is not limited; in this embodiment, the actual center of gravity position can be output based on the coordinate signal in the center of gravity sensing signal.

[0078] Step S206: If it is determined that the actual center of gravity is not in the target stable area, the center of gravity sensing signal is analyzed to obtain the first mass and first position of the newly added object.

[0079] Specifically, after obtaining the actual center of gravity position of the kitchen utensil sterilizer, it can be determined whether the sterilizer is at risk of tipping over due to the addition of an object, based on whether it is within the target stable area. The position within the target stable area indicates that the sterilizer is not at risk of tipping over, and this can be determined based on the basic principle of object stability: the projection of the object's center of gravity in the vertical direction must fall within the object's supporting surface.

[0080] The kitchen sterilizer is designed in a rectangular shape, with an internal cavity protruding to one side. Figure 3 The example shows the area distribution map under the left view, and Figure 4 As shown in the top view diagram of the example area, the risk of tipping over of the kitchen sterilizer is mainly concentrated in the first direction parallel to the convex direction of the receiving cavity, i.e. Figure 3 The X-axis direction is shown, thus eliminating the need to consider the risk of tipping over in the Y-axis direction. In conjunction with... Figure 1 Looking at the data, the X-axis is actually the width of chassis 4, the Y-axis is actually the length of chassis 4, and the Z-axis is actually the height of chassis 4. The origin O where the X-axis, Y-axis, and Z-axis intersect is the origin of the center of gravity of the kitchen sterilizer when it is unloaded.

[0081] Therefore, the supporting surface of the kitchen sterilizer can be understood as the rectangular area formed by the contact between the base and the countertop. Figure 3 and Figure 4 For example, the space of the kitchen sterilizer along the Z-axis can be divided into three regions along the X-axis: region A along the negative X-axis, region C along the positive X-axis, and the middle region B. Region B is the support space of the kitchen sterilizer, and the projection area of ​​this support space onto the negative Z-axis is the support surface of the kitchen sterilizer described above. This support surface can then be used as the target stable region.

[0082] In some examples, the target stable area can be obtained by analyzing the center of gravity sensing signal when the kitchen sterilizer is in an unloaded state. It should be noted that after obtaining the actual center of gravity position of the kitchen sterilizer, it is necessary to determine whether this actual center of gravity position belongs to a stable position within the target stable area to determine whether the kitchen sterilizer is at risk of tipping over due to the addition of an object. The stable position can be the origin of the center of gravity or any other position other than the origin of the center of gravity. The origin of the center of gravity can be understood as the location where the center of gravity sensing device is set, i.e., the center position of the chassis.

[0083] For example, determining whether the actual center of gravity is not within the target stable region can be based on the X-axis coordinate of the actual center of gravity. Specifically, it can be determined whether the X-axis coordinate of the actual center of gravity falls within the range of the X-axis coordinates corresponding to the target stable region. For instance, if the X-axis coordinate of the actual center of gravity falls within the range of the X-axis coordinates corresponding to the target stable region, then the actual center of gravity is determined to be within the target stable region; if the X-axis coordinate of the actual center of gravity does not fall within the range of the X-axis coordinates corresponding to the target stable region, then the actual center of gravity is determined to be not within the target stable region.

[0084] Furthermore, if it is determined that the actual center of gravity is not within the target stable region, the center of gravity sensing signal needs to be analyzed to obtain the first mass and first position of the newly added object, in order to determine the degree to which the newly added object causes the actual center of gravity to deviate from the target stable region. The method for obtaining the first mass and first position of the newly added object is not limited; for example, it can be obtained through analysis using the principle of torque balance. Specifically, the torque signal and coordinate signal in the center of gravity sensing signal can be analyzed in conjunction with the principle of torque balance to obtain the first mass and first position of the newly added object.

[0085] Step S208: Calculate the center of gravity adjustment data based on the second mass, the first mass, and the first position of the center of gravity adjustment device.

[0086] The center of gravity adjustment device may include a movable counterweight. Correspondingly, the internal state change of the center of gravity adjustment device can be characterized by the movement of the counterweight; that is, the center of gravity position of the kitchen sterilizer changes as the position of the counterweight moves. The aforementioned second mass can be understood as the mass of the counterweight.

[0087] It is understandable that in a multi-object system, after adding a new object, the overall center of gravity can be brought back to a stable position within the target stable region by moving one of the existing objects. Therefore, the center of gravity adjustment data used to adjust the position of the counterweight can be obtained by calculating the second mass, the first mass, and the first position of the center of gravity adjustment device.

[0088] The following explains the process of obtaining the center of gravity adjustment data.

[0089] above Figure 3 and Figure 4 Taking the structural setup as an example, the process only considers the risk of tipping over in the X-axis direction, that is, only the X-axis coordinate in the coordinate system is calculated. Furthermore, the following calculations are based on whether the actual center of gravity of the kitchen sterilizer is not located at the origin of gravity.

[0090] First, assume there are N objects in the system, labeled A1, A2, ..., A3. NTheir masses are m1, m2, ..., m N The initial positions are x1, x2, ..., x3. N And in the initial state, the overall center of gravity is located at the origin O, that is, the following equation exists:

[0091] (1)

[0092] Therefore, we get:

[0093] (2)

[0094] Suppose we add a new object A at this point. N+1 Its first mass is m N+1 The first position is (x) N+1 y N+1 Since this application embodiment only calculates the X-axis coordinate in the coordinate position, the first position can be directly expressed as x. N+1 This indicates that the overall centroid coordinate at this time is x. g It can be calculated using the following formula:

[0095] (3)

[0096] Substituting equation (1) into equation (3), we get:

[0097] (4)

[0098] Based on the initial condition (2), the formula for calculating the overall centroid coordinates can be simplified as follows:

[0099] (5)

[0100] To return the overall center of gravity to the origin O (i.e., the X-axis coordinate becomes 0), it is necessary to move one of the existing objects A in the system. k To offset this offset. Assume A k It needs to be started from the original coordinate position x k The distance moved is Δx k Then object A k new coordinate position It can be expressed as follows:

[0101] (6)

[0102] Then in object A k Move Δx k Afterwards, the overall center of gravity can return to the origin point O, which is expressed as:

[0103] (7)

[0104] Based again on the initial condition (2), we can obtain Substituting it into equation (7), equation (7) can be simplified to:

[0105] (8)

[0106] It can be further simplified to:

[0107] (9)

[0108] Solving for:

[0109] (10)

[0110] Furthermore, the counterweight in the center of gravity adjustment device can be considered as the object A to be moved. k Based on equation (10), the center of gravity adjustment data Δx used to adjust the position of the counterweight is obtained. k Among them, m k The second mass, i.e., the mass of the counterweight, is m. N+1 As the first mass, x N+1 It is in the first position. It can be seen that the center of gravity adjustment data Δx k With the second mass m k Inversely proportional to the first mass m of the newly added object N+1 And the first position x N+1 Proportional.

[0111] Step S210: Based on the center of gravity adjustment data, output the center of gravity adjustment command to the center of gravity adjustment device of the kitchen sterilizer to adjust the actual center of gravity position back to the target stable area.

[0112] Specifically, the center of gravity adjustment device may also include a drive component that drives the counterweight to move. After obtaining the center of gravity adjustment data, the output of the center of gravity adjustment data can be used to control the center of gravity adjustment command of the drive component, so that the drive component drives the counterweight to move and adjust the actual center of gravity position to return to a stable position within the target stable area.

[0113] For example, the center of gravity adjustment data includes adjustment distance and adjustment direction. The adjustment distance indicates the distance the counterweight moves, while the adjustment direction indicates the direction of movement. Generally, the adjustment direction needs to be aligned with the first position x of the newly added object. N+1 The direction is opposite. Therefore, the corresponding center of gravity adjustment command is to instruct the drive component to move the counterweight a certain distance in the adjustment direction.

[0114] If the center of gravity adjustment device includes multiple adjustment units, i.e., multiple counterweights are set to adjust the actual center of gravity position of the kitchen sterilizer, the control device can also select a target adjustment unit based on the current position status of each adjustment unit, and output a center of gravity adjustment command to the drive component of the target adjustment unit, so as to drive the counterweight in the target adjustment unit to move the adjustment distance in the adjustment direction, and adjust the actual center of gravity position to return to a stable position within the target stable area.

[0115] For example, in step S210, the center of gravity adjustment device adjusts the actual center of gravity position of the kitchen utensil sterilizer so that it returns to a stable position within the target stable area. This stable position can be the same as the stable position of the kitchen utensil sterilizer before the new object was placed, or it can be a different position. That is, the actual center of gravity position of the kitchen utensil sterilizer after adjustment can be any position within the target stable area. In the case that the two stable positions are different, it can be understood that during the process of outputting the center of gravity adjustment command to the center of gravity adjustment device, the control device can continuously acquire the center of gravity sensing signal of the center of gravity sensing device and continuously monitor the actual center of gravity position of the kitchen utensil sterilizer. Once it is detected that the actual center of gravity position has returned to any position within the target stable area, even if it is not the stable position before the new object was placed, the adjustment of the actual center of gravity position of the kitchen utensil sterilizer can be stopped.

[0116] It is understood that after step S210 or after step S204, when it is determined that the actual center of gravity is in the target stable area, the control device can control the sterilization device of the kitchenware sterilizer to start and run, and sterilize the objects in the kitchenware placement area at high temperature.

[0117] The aforementioned method for adjusting the center of gravity of a kitchen utensil sterilizer involves acquiring the center of gravity sensing signal from the sterilizer's center of gravity sensor. When a new object is detected based on this signal, the sterilizer's actual center of gravity position is determined. If the actual center of gravity position is not within the target stable area, the sensor signal is analyzed to obtain the first mass and first position of the new object. Then, based on the second mass, first mass, and first position of the center of gravity adjustment device, calculations are performed to determine the center of gravity adjustment data used to adjust the position. A center of gravity adjustment command is then output to the sterilizer's center of gravity adjustment device to adjust the actual center of gravity position back to the target stable area. Throughout this process, when objects such as cutting boards or knives are placed in the sterilizer, the sterilizer's actual center of gravity position is automatically acquired, and the center of gravity is automatically adjusted to ensure it returns to the target stable area. This significantly improves the sterilizer's stability and reduces the risk of tipping over.

[0118] In an exemplary embodiment, the center of gravity sensing device in the kitchen sterilizer provided in this application includes multiple force sensors, which are evenly distributed in a preset area centered on the center position of the chassis.

[0119] Specifically, when the center of gravity sensing device includes multiple force sensors, the multiple sub-center of gravity sensing information obtained from the multiple force sensors can be fused to output a center of gravity sensing signal characterizing the kitchen sterilizer. The fusion calculation can be performed using a simple average value or a more complex weighted average method. It can be understood that for the different types of signals contained in the center of gravity sensing signal, they need to be fused and output separately.

[0120] In this embodiment, based on the principle of mechanical distribution, the force sensor is set up with multiple support points, which can effectively improve the measurement accuracy of the center of gravity sensing signal.

[0121] For example, in this embodiment, the center of gravity sensing device includes four force sensors, which are respectively disposed at the four vertices of a rectangular area centered on the center of the chassis. In this embodiment, the four-point support arrangement of the force sensors can effectively improve the measurement accuracy of the three-dimensional center of gravity sensing signal.

[0122] In one exemplary embodiment, such as Figure 5 As shown, step S206, which involves analyzing the center of gravity sensing signal to obtain the first mass and first position of the newly added object, includes steps S302 to S304. Wherein:

[0123] Step S302: Obtain the third mass and third position of the kitchenware sterilizer before the new object is placed inside.

[0124] Step S304: Based on the third mass and the third position, analyze the torque signal and coordinate signal in the center of gravity sensing signal to obtain the first mass and the first position.

[0125] Specifically, the principle of torque balance can be used to calculate the first mass and first position of the newly added object based on the torque signal F1 and the coordinate signal (x1, y1) in the current center of gravity sensing signal. The calculation process is explained below.

[0126] In this context, the third mass of the kitchen utensil sterilizer before the new object is placed in can be M, and the third position can be (x0, y0). The first mass of the new object is assumed to be m. N+1 Let the first position be (x) N+1 y N+1 Therefore, according to the principle of torque balance, the following equation exists:

[0127] F1 = (M + m) N+1 )g

[0128] F1 x1 = (M x0 + m) N+1 xN+1 )g

[0129] F1 y1=(M y0+ m N+1 y N+1 )g

[0130] Where g is the acceleration due to gravity. By solving the above system of equations and substituting the known third mass, third position, and torque and coordinate signals from the center of gravity induction signal, the first mass and first position of the newly added object can be analytically obtained.

[0131] It is understandable that after each actual center of gravity returns to a stable position, the mass and position data of the current state are recorded, so that when a new object is added next time, it can be used as the third mass and third position to assist in the calculation of the first mass and first position of the new object.

[0132] In one exemplary embodiment, such as Figure 6 and 7 As shown, the center of gravity adjustment device 5 includes at least one adjustment unit, and each adjustment unit includes at least a counterweight 5.1 and a driving component 5.2. The counterweight 5.1 reciprocates under the drive of the driving component 5.2.

[0133] In one exemplary embodiment, the center of gravity adjustment data includes the adjustment distance and the adjustment direction. For example... Figure 8 As shown, step S210, which outputs a center-of-gravity adjustment command to the kitchen sterilizer based on the center-of-gravity adjustment data, includes steps S402 to S404. Wherein:

[0134] Step S402: Select the target adjustment unit based on the adjustment direction and adjustment distance.

[0135] Specifically, when the center of gravity adjustment device includes multiple adjustment units, the adjustment unit that satisfies the requirement to run the adjustment distance in the adjustment direction can be selected as the target adjustment unit.

[0136] The method of selecting the target adjustment unit is not limited. In one exemplary embodiment, such as... Figure 9 As shown, step S402 includes steps S502 to S506. Wherein:

[0137] Step S502: Obtain the adjustable distance that each adjustment unit moves in the adjustment direction.

[0138] Step S504: Select any adjustment unit whose adjustable distance is greater than or equal to the adjustment distance as the target adjustment unit.

[0139] Step S506: If there is no adjustment unit whose adjustable distance is greater than or equal to the adjustment distance, select at least two adjustment units whose sum of adjustable distances is greater than the adjustment distance as target adjustment units.

[0140] Specifically, based on the current position of each adjustment unit, the adjustable distance it can move in the adjustment direction can be obtained. Then, the adjustable distance of each adjustment unit is compared with the adjustment distance in the center of gravity adjustment data to determine the adjustment unit whose adjustable distance is greater than or equal to the adjustment distance, and this unit is selected as the target adjustment unit.

[0141] In this process, the adjustable distances of multiple adjustment units can be compared one by one with the adjustment distances in the center of gravity adjustment data. When an adjustment unit with an adjustable distance greater than or equal to the adjustment distance is found, it is determined as the target adjustment unit. Alternatively, the adjustable distances of all adjustment units can be compared with the adjustment distances in the center of gravity adjustment data to obtain all adjustment units with adjustable distances greater than or equal to the adjustment distance, and then any one of them can be selected as the target adjustment unit.

[0142] Furthermore, if there is no single adjustment unit with an adjustable distance greater than the adjustment distance, multiple adjustment units whose sum of adjustable distances is greater than the adjustment distance can be selected as the target adjustment unit.

[0143] Step S404: Output the center of gravity adjustment command, which adjusts the adjustment distance in the adjustment direction, to the drive component of the target adjustment unit.

[0144] Specifically, when there is only one target adjustment unit, a center of gravity adjustment command is output to that target adjustment unit to adjust the adjustment distance in the adjustment direction, thereby adjusting the actual center of gravity position of the kitchen sterilizer. When there are multiple target adjustment units, the adjustment distance is divided into multiple sub-adjustment distances, limited by the adjustable distance of each target adjustment unit. At the same time, a center of gravity adjustment command to adjust the sub-adjustment distance in the adjustment direction is output to these multiple target adjustment units, thereby adjusting the actual center of gravity position of the kitchen sterilizer.

[0145] The center of gravity adjustment command is sent to the drive component of the target adjustment unit to move the connected counterweight a certain distance. Since the actual center of gravity position deviates from the target stability area due to the addition of a new object, the adjustment direction must be aligned with the first position (x) of the new object. N+1 The direction is opposite. This can be understood as needing to move the counterweight in the opposite direction of the X-axis coordinate of the newly added object in order to compensate for the shift in the actual center of gravity caused by the addition of the new object.

[0146] In an exemplary embodiment, after step S204, the above-mentioned center of gravity adjustment method further includes: if it is determined that the actual center of gravity position is not at the center of gravity origin position, performing the step of parsing the center of gravity sensing signal in step S206 to obtain the first mass and first position of the newly added object.

[0147] The center of gravity origin point is the location where the center of gravity sensor is set, which is the center of the chassis. It can be understood that when the actual center of gravity is located at the center of gravity origin point, the kitchen sterilizer is in its most stable state. In this state, objects are less likely to tip over, meaning its resistance to tipping is also stronger.

[0148] Correspondingly, after step S204, the obtained actual center of gravity position can be compared with the origin position to determine whether it is a stable position, and thus determine whether the kitchen sterilizer poses a risk of tipping over. This can be understood as follows: when the actual center of gravity position matches the origin position, it is determined to be a stable position; when the actual center of gravity position deviates from the origin position, it is determined to be an unstable position. Whether the actual center of gravity position matches the origin position can be determined based on whether the difference between their coordinate positions is within a preset error range.

[0149] In this embodiment, if the actual center of gravity deviates from the original center of gravity, it is determined that the actual center of gravity of the kitchenware sterilizer is not a stable position. The actual center of gravity is then adjusted according to the methods in steps S206 to S210, so that the kitchenware sterilizer can be kept in the most stable state and avoid tipping over if a heavy cutting board is suddenly placed on it, as the control device will not have time to adjust the center of gravity.

[0150] In one exemplary embodiment, such as Figure 10 As shown, the method for obtaining the origin position of the center of gravity and the target stable region includes the following steps S602 to S606, wherein:

[0151] Step S602: Obtain the unloaded center of gravity sensing signal when the kitchen sterilizer is in an unloaded state.

[0152] Step S604: Use the coordinate signal in the unloaded center of gravity sensing signal as the position of the center of gravity origin.

[0153] Step S606: Using the origin of the center of gravity as the center and the dimensions of the kitchen sterilizer's chassis as the boundary, the target stable region is constructed.

[0154] Specifically, the kitchen utensil sterilizer is in an unloaded state, meaning that there are no objects in the kitchen utensil placement area of ​​the sterilizer. The unloaded center of gravity sensing signal can be obtained at any time when the kitchen utensil sterilizer is in an unloaded state, based on the center of gravity sensing device.

[0155] Furthermore, the coordinate signal from the unloaded center of gravity sensing signal of the center of gravity sensing device can be used as the origin position of the center of gravity. When the center of gravity sensing device includes multiple force sensors, the origin position of the center of gravity can be the average coordinate value of the coordinate signals from the multiple unloaded center of gravity sensing signals.

[0156] Furthermore, the dimensions of the kitchen utensil sterilizer's chassis can include its width, length, and height, which can be pre-stored in the control device at the factory. Once the center of gravity origin is determined, a rectangular target stable area can be formed in the center-of-gravity coordinate system, using the width of the chassis as the X-axis coordinate range and the length as the Y-axis coordinate range.

[0157] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0158] In one exemplary embodiment, refer to Figure 1 The kitchenware sterilizer includes a knife holder 1, a body 2, a chassis 4, a center of gravity adjustment device 5, a center of gravity sensing device 6, and a control device 7.

[0159] The machine body 2 has an internal cavity that divides into at least two utensil placement areas. A knife holder 1 is located on the upper part of the machine body 2. A chassis 4 is located at the bottom of the machine body 2. A center-of-gravity sensor 6 is located at the center of the chassis 4, and a center-of-gravity adjustment device 5 is located inside the chassis 4. A control device 7 is connected to the center-of-gravity sensor 6 and the center-of-gravity adjustment device 5. The control device 7 executes various center-of-gravity adjustment methods provided in this embodiment to control the internal state changes of the center-of-gravity adjustment device 5, thereby adjusting the center-of-gravity position of the utensil sterilizer to significantly reduce the risk of tipping over.

[0160] In one example, the receiving cavity formed inside the fuselage 2 protrudes to one side of the fuselage. Furthermore, the projected area of ​​the receiving cavity in the direction perpendicular to the chassis 4 can be larger than the area of ​​the chassis 4.

[0161] This design not only provides more storage space but also facilitates optimized space layout and improves space utilization. For example, the non-protruding side of the unit 2 can be stored against a wall to optimize kitchen countertop space. Placing it against a wall also increases the stability of the kitchen appliance sterilizer and reduces the risk of tipping over. Since the center-of-gravity adjustment device in this embodiment is located inside the chassis, placing it against a wall will not affect the implementation of its center-of-gravity adjustment scheme.

[0162] In one exemplary embodiment, the receiving cavity is divided into at least two stepped areas for placing kitchen utensils. (See also...) Figure 11 The receiving cavity can be divided into three kitchen utensil placement areas: a first kitchen utensil placement area 21, a second kitchen utensil placement area 22, and a third kitchen utensil placement area 23. The three kitchen utensil placement areas are arranged in a stepped manner within the receiving cavity, which can hold kitchen utensils of different sizes and types, meeting the disinfection needs of more types of kitchen utensils.

[0163] In one example, the knife holder 1 is used to place items to be sterilized, such as cutting boards, knives, chopsticks, and other kitchen utensils. Furthermore, the knife holder 1 can divide the internal cavity of the main body 2 into at least two utensil placement areas, effectively preventing cross-contamination and odor mixing between different types of utensils.

[0164] In one exemplary embodiment, refer to Figure 6 and 7 As shown, the center of gravity adjustment device 5 includes at least one adjustment unit, and each adjustment unit includes at least a counterweight 5.1 and a driving component 5.2. The counterweight 5.1 reciprocates under the drive of the driving component 5.2.

[0165] The counterweight 5.1 can reciprocate along the width direction of the chassis 4 under the drive of the driving component 5.2, or it can reciprocate along the length direction of the chassis 4 under the drive of the driving component 5.2. In this embodiment, the width direction of the chassis 4 can be set as the X-axis direction in the center of gravity coordinate system, and the length direction of the chassis 4 can be set as the Y-axis direction.

[0166] Furthermore, combined with Figure 3 and Figure 4 It can be seen that the risk of tipping over the kitchen utensil sterilizer is mainly concentrated in the X-axis direction, which is parallel to the protruding direction of the receiving cavity, i.e., the width direction of the chassis 4. Therefore, the counterweight 5.1 is designed to reciprocate along the width direction of the chassis 4 under the drive of the drive component 5.2, which can more efficiently adjust the actual center of gravity position of the kitchen utensil sterilizer.

[0167] It should be noted that the mass of the counterweight 5.1 in this application can be designed according to actual needs. It must be ensured that it has a certain weight to play a role in adjusting the center of gravity, and the impact on the actual weight of the product must also be considered to maintain portability and ease of use.

[0168] In one exemplary embodiment, continuing with reference to Figure 6 and Figure 7 The drive component 5.2 is an electric telescopic rod. The electric telescopic rod is controlled by the center of gravity adjustment command issued by the control device to adjust the telescopic state, thereby driving the counterweight 5.1 to reciprocate along the width direction of the chassis 4.

[0169] In one exemplary embodiment, continuing with reference to Figure 6 and Figure 7 The center of gravity adjustment device 5 includes two adjustment units arranged side by side along the length of the chassis 4. This design, by dividing the device into two adjustment units and arranging them side by side along the length of the chassis 4, ensures that the device remains balanced when unloaded, while also enabling more precise adjustment of the actual center of gravity position of the kitchen sterilizer.

[0170] In one example, the drive components 5.2 of the two adjustment units are mounted on the same side of the chassis 4. Specifically, the two drive components 5.2 being mounted on the same side can be mounted on the same side near the protruding receiving cavity or on the same side away from the protruding receiving cavity. It can be understood that the drive components 5.2 of the two adjustment units have the same extension direction and retraction direction. Figure 6 For example, the extension direction of the drive component 5.2 of both adjustment units is towards A.

[0171] It should be noted that when the kitchen sterilizer is in an unloaded state, one of the drive components 5.2 of the two adjustment units is in a fully retracted state, and the other is in a fully extended state. This ensures that the counterweights 5.1 of the two adjustment units are close to both sides of the chassis 4, maintaining balance in the unloaded state, and ensuring that the actual center of gravity of the kitchen sterilizer is within the target stable area.

[0172] In one exemplary embodiment, the center of gravity sensing device includes a plurality of force sensors that are evenly distributed in a preset area centered on the center position of the chassis.

[0173] Specifically, when the center of gravity sensing device includes multiple force sensors, the multiple sub-center of gravity sensing information obtained from the multiple force sensors can be fused to output a center of gravity sensing signal characterizing the kitchen sterilizer. The fusion calculation can be performed using a simple average value or a more complex weighted average method. It can be understood that for the different types of signals contained in the center of gravity sensing signal, they need to be fused and output separately.

[0174] In this embodiment, based on the principle of mechanical distribution, the force sensor is set up with multiple support points, which can effectively improve the measurement accuracy of the center of gravity sensing signal.

[0175] For example, in this embodiment, the center of gravity sensing device includes four force sensors, which are respectively disposed at the four vertices of a rectangular area centered on the center of the chassis. In this embodiment, the four-point support arrangement of the force sensors can effectively improve the measurement accuracy of the three-dimensional center of gravity sensing signal.

[0176] In one exemplary embodiment, refer to Figure 1 The kitchenware sterilizer also includes a water baffle plate 3, which is located at the bottom of the body 2 and above the base 4. The water baffle plate 3 is used to catch water dripping from the kitchenware to prevent it from damaging the control device 7 below.

[0177] In one exemplary embodiment, the kitchenware sterilizer also includes a sterilization device connected to a control device, which can disinfect and sterilize the kitchenware in the kitchenware placement area under the control of the control device.

[0178] For example, the sterilization device includes a heating element and an ultraviolet lamp. This embodiment utilizes the sterilization ability of ultraviolet light emitted by the ultraviolet lamp to irradiate kitchenware for a certain period, achieving a very good sterilization effect. Furthermore, the heat emitted by the heating element can also be used to dry wet kitchenware, thus realizing a kitchenware drying function.

[0179] In one specific embodiment, a kitchen utensil sterilizer is provided, including a body, a knife holder, a water baffle plate, a chassis, a center of gravity adjustment device, a center of gravity sensing device, and a control device.

[0180] Specifically, the knife holder is located at the top of the machine body, serving to separate the knives and cutting boards. The interior of the machine body has at least two areas for placing cutting boards or knives of different sizes and types. Below the water-retaining tray are a control device and a center-of-gravity sensor. The control device is responsible for the sterilization control function, receiving and processing signals from the center-of-gravity adjustment function and the center-of-gravity sensor. The center-of-gravity sensor contains multiple force sensors for real-time monitoring of overall center-of-gravity changes. A chassis is located at the bottom of the machine body, and inside the chassis are two center-of-gravity adjustment devices, each consisting of a counterweight and an electrically operated telescopic rod.

[0181] Reference Figure 3 and Figure 4 For a cuboid-shaped kitchen appliance sterilizer, the risk of tipping over is mainly concentrated in the X-axis direction, while tipping over in the Y-axis direction need not be considered. Therefore, the space of the device in the Z-axis direction can be divided into three regions along the X-axis direction: region A along the negative X-axis direction, region C along the positive X-axis direction, and the middle region B. Region B is the support space of the kitchen appliance sterilizer, and the projection area of ​​this support space onto the negative Z-axis direction is the support surface of the kitchen appliance sterilizer.

[0182] Based on the fundamental principles of object stability, the projection of an object's center of gravity in the vertical direction must fall within the object's supporting surface to prevent tipping. Therefore, to ensure the stability of the kitchen sterilizer, the projection of its actual center of gravity along the negative Z-axis must fall within the supporting surface. In summary, the target stability area can be set based on this supporting surface; that is, the area where the projection of the kitchen sterilizer's actual center of gravity along the negative Z-axis must fall within the supporting surface. Specifically, it is divided as follows: Area A: Area along the negative X-axis; Area B: Target stability area; Area C: Area along the positive X-axis.

[0183] Reference Figure 12 The control method for kitchen utensil sterilizers includes the following processes:

[0184] When no cutting board or knife is placed on the appliance, the center of gravity sensor detects the position of the appliance's center of gravity and generates a signal that is transmitted to the control unit. The control unit uses these signals to determine the origin O, zone B (the target stable zone), zone A, and zone C. As long as the actual center of gravity of the appliance is within zone B, it is unlikely to tip over, and the control unit will not issue any commands.

[0185] When a cutting board or knife is placed, the center of gravity sensor will detect the overall center of gravity position again and generate a signal to be transmitted to the control device. If the actual center of gravity position of the kitchenware sterilizer is still within area B, the control device will not issue a signal command, the center of gravity adjustment device will not be activated, and the equipment will directly enter the high-temperature sterilization mode.

[0186] If the actual center of gravity of the kitchen utensil sterilizer deviates from area B, the center of gravity sensor will detect the first mass m of the placed cutting board or knife. N+1 and the first position x N+1 The control device will issue commands to the two adjustment units based on the specific deviation of the center of gravity. The electric telescopic pole will then extend or shorten by a distance Δx according to the commands. k This causes the counterweight to move along the positive or negative X-axis, thereby adjusting the actual center of gravity of the kitchen sterilizer. The specific adjustment method is as follows:

[0187] If the actual center of gravity is located in region A, the electric telescopic rod will pull the counterweight to move in the positive X-axis direction.

[0188] If the actual center of gravity is located in region C, the electric telescopic rod will push the counterweight to move in the negative X-axis direction.

[0189] During this process, the center of gravity sensor continuously monitors the actual center of gravity position of the kitchen utensil sterilizer and generates a signal to feed back to the control device. Once the actual center of gravity position of the kitchen utensil sterilizer returns to zone B, the control device will stop issuing commands, the center of gravity adjustment device will stop working, and the counterweight will remain in its current position. (This continuous monitoring process is not a delayed adjustment; it can be understood as a safety process, monitoring the center of gravity of the counterweight during its movement). Whenever a cutting board or knife is placed in the machine, the above process is repeated to ensure that the actual center of gravity position of the kitchen utensil sterilizer remains within the safe zone B before the sterilizer begins its high-temperature sterilization function.

[0190] Reference Figure 13 The control method for kitchen utensil sterilizers also includes the following processes:

[0191] After sterilization, when the cutting board or knife is removed, the center of gravity sensor continuously monitors the actual center of gravity position of the kitchen utensil sterilizer and generates a signal that is transmitted to the control device. If the actual center of gravity position of the kitchen utensil sterilizer does not deviate from area B, the control device will not issue a signal command, and the center of gravity adjustment device will not be activated. If the actual center of gravity position of the kitchen utensil sterilizer deviates from area B, the control device will issue commands to the two adjustment units according to the specific deviation. The electric telescopic rod will extend or retract according to the center of gravity adjustment command, driving the counterweight to move along the positive or negative X-axis, thereby adjusting the actual center of gravity position of the kitchen utensil sterilizer. The adjustment process is the same as when the cutting board is placed in the kitchen utensil sterilizer, until the actual center of gravity position of the kitchen utensil sterilizer returns to area B.

[0192] In this embodiment, a gravity sensing device and an electric push rod are used to adjust the counterweight. During operation, the center of gravity can be automatically adjusted according to the weight of the placed knives and cutting boards, so that the actual center of gravity of the kitchen sterilizer is always kept in the target stable area. This achieves automatic adjustment of the center of gravity and ensures the stability and safety of the equipment, while maintaining portability and ease of use, providing a more convenient and healthy solution for modern family kitchens.

[0193] 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 application.

[0194] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A method of adjusting the center of gravity of a kitchen appliance sterilizer, characterized by, The method comprises: obtaining a gravity sensing signal of a gravity sensing device of the kitchen utensil sterilizer; when a new object is sensed, obtaining an actual gravity position of the kitchen utensil sterilizer; in a case where it is determined that the actual gravity position is not in a target stable region, analyzing the gravity sensing signal to obtain a first mass and a first position of the new object, the target stable region being obtained when the kitchen utensil sterilizer is in an empty state; calculating, according to a second mass of a gravity adjusting device, the first mass and the first position, to obtain gravity adjusting data; outputting a gravity adjusting instruction to the gravity adjusting device of the kitchen utensil sterilizer based on the gravity adjusting data, so as to adjust the actual gravity position to return to the target stable region.

2. The method of claim 1, wherein, The analysis of the gravity sensing signal to obtain the first mass and the first position of the new object comprises: obtaining a third mass and a third position of the kitchen utensil sterilizer before the new object is put in; analyzing a torque signal and a coordinate signal in the gravity sensing signal based on the third mass and the third position to obtain the first mass and the first position.

3. The method of claim 1, wherein, The gravity adjusting device comprises at least one adjusting unit, the adjusting unit comprising at least a driving component and a counterweight, the counterweight reciprocating under the driving of the driving component, the gravity adjusting data comprising an adjusting distance and an adjusting direction; The outputting of the gravity adjusting instruction to the gravity adjusting device of the kitchen utensil sterilizer based on the gravity adjusting data comprises: selecting a target adjusting unit based on the adjusting direction and the adjusting distance; outputting the gravity adjusting instruction to the driving component of the target adjusting unit in the adjusting direction by the adjusting distance.

4. The method of claim 3, wherein, The selection of the target adjusting unit based on the adjusting direction and the adjusting distance comprises: obtaining an adjustable distance of each adjusting unit running in the adjusting direction; selecting an adjusting unit with any one of the adjustable distances greater than or equal to the adjusting distance as the target adjusting unit; if there is no adjusting unit with any one of the adjustable distances greater than or equal to the adjusting distance, selecting at least two adjusting units with the sum of the adjustable distances greater than the adjusting distance as the target adjusting unit.

5. The method according to any one of claims 1 to 4, characterized in that, The method further comprises: in a case where it is determined that the actual gravity position is not in a gravity origin position, performing the analysis of the gravity sensing signal to obtain the first mass and the first position of the new object.

6. The method of claim 5, wherein, The obtaining of the gravity origin position and the target stable region comprises: obtaining an empty gravity sensing signal of the kitchen utensil sterilizer in an empty state; taking a coordinate signal in the empty gravity sensing signal as the gravity origin position; constructing the target stable region with the gravity origin position as the center and the size data of a bottom plate of the kitchen utensil sterilizer as the boundary.

7. A kitchenware sterilizer characterized by comprising: The kitchen utensil sterilizer comprises: a machine body, an accommodating cavity being formed in the machine body, the accommodating cavity being divided into at least two kitchen utensil placing areas; a knife holder, the knife holder being arranged at an upper portion of the machine body; a bottom plate, the bottom plate being arranged at a bottom portion of the machine body; A gravity center sensing device is arranged at the center of the base plate; A gravity center adjusting device is arranged inside the base plate; A control device is connected to the gravity center sensing device and the gravity center adjusting device, and is used to control the internal state change of the gravity center adjusting device according to the gravity center adjusting method of any one of claims 1 to 6, so as to adjust the gravity center position of the kitchen appliance sterilization machine.

8. The kitchenware sterilizer according to claim 7, characterized in that, The accommodating cavity is arranged protruding to one side of the machine body.

9. The kitchenware sterilizer according to claim 7 or 8, characterized in that, The projection area of the accommodating cavity in the direction perpendicular to the base plate is greater than the area of the base plate.

10. The kitchenware sterilizer according to claim 7, wherein The gravity center adjusting device comprises at least one adjusting unit, and the adjusting unit comprises at least a driving component and a counterweight block.

11. The kitchenware sterilizer according to claim 10, wherein The counterweight block reciprocates along the width direction of the base plate under the driving of the driving component.

12. The kitchenware sterilizer according to claim 10, wherein The gravity center adjusting device comprises two adjusting units arranged side by side along the length direction of the base plate.

13. The kitchenware sterilizer according to claim 12, characterized in that, The driving components of the two adjusting units are installed on the same side of the base plate.

14. The kitchenware sterilizer according to claim 10, wherein The driving component is an electric telescopic rod.

15. The kitchenware sterilizer according to claim 7, wherein The gravity center sensing device comprises a plurality of force sensors, and the plurality of force sensors are uniformly distributed in a preset area with the center position of the base plate as the center.

16. The kitchenware sterilizer according to claim 7, wherein The accommodating cavity is divided into at least two kitchenware placing areas in a stepped manner.

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