Electrical equipment

Abstract

The embodiment of the utility model provides electrical equipment. The electrical equipment comprises a box body, a motor, a knob, a position sensor and a control device, wherein a control panel is arranged on one side of the box body along a first direction; the motor is arranged in the box body and comprises a rotor and a stator; the knob is connected with the rotor and protrudes out of the outer surface of the control panel; the position sensor is used for detecting the position of the rotor, the control device is electrically connected with the motor and the position sensor, and the control device is used for obtaining the rotating position of the knob according to position feedback of the position sensor. And the controller is used for controlling the rotor of the motor to output resistance torque or vibration to the knob when the knob rotates out of the knob operation interval corresponding to the current operation mode of the electrical equipment. The electrical equipment provided by the embodiment of the utility model can provide an interaction function for the knob, so that a user can obtain operation feedback when misoperation occurs, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the field of electrical technology, and in particular to an electrical device. Background Art

[0002] Electrical devices are often provided with knobs, and users can turn the knobs to control the electrical devices. Taking cooking devices as an example, users can select cooking modes, cooking time and cooking temperature, etc. by turning the knobs.

[0003] In the related art, the knobs on electrical equipment are usually used in conjunction with a rotary encoder, which can only provide position detection and fixed damping but cannot provide interactive functions. Utility Model Content

[0004] In view of this, the embodiments of the present application hope to provide an electrical device that can solve or at least partially solve the above-mentioned problems.

[0005] An embodiment of the present application provides an electrical device, which includes: a housing, wherein a control panel is provided on one side of the housing along a first direction; a motor, which is arranged in the housing, and wherein the motor includes a rotor and a stator; a knob, which is connected to the rotor and protrudes from the outer surface of the control panel; a position sensor, which is used to detect the position of the rotor, and a control device, which is electrically connected to the motor and the position sensor, wherein the control device is used to obtain the rotation position of the knob based on the position feedback of the position sensor, and to control the rotor of the motor to output a resistance torque or vibration to the knob when the knob is rotated outside the knob operation range corresponding to the current operating mode of the electrical device.

[0006] In some embodiments, the rotor surrounds the outer circumference of the stator, and the position sensor is disposed on an axial side of the stator away from the knob.

[0007] In some embodiments, the electrical device includes: a push switch, and the knob can move axially and in a direction close to the box under the action of an external force to trigger the push switch.

[0008] In some embodiments, the electrical device includes: an elastic reset member, which is used to accumulate elastic force when the knob moves axially and in a direction close to the box body, and the elastic force is used to drive the knob to move axially and away from the box body for reset.

[0009] In some embodiments, the rotor surrounds the outer circumference of the stator, and the electrical device includes: a mounting seat, the stator is connected to the mounting seat; a support shaft, which is arranged on the mounting seat and extends along the first direction, the stator has a through hole, the through hole passes through the stator along the first direction, and the support shaft is passed through the through hole.

[0010] In some embodiments, the position sensor is disposed on a side of the mounting base facing away from the stator, and a center line of the position sensor coincides with a central axis of the stator.

[0011] In some embodiments, a wiring cavity is formed inside the support shaft, at least a portion of the wiring cavity extends along the first direction, the electrical device includes a wire, the wire is used to connect the push switch and the control device, and a portion of the wire passes through the wiring cavity.

[0012] In some embodiments, the electrical device includes: an adapter connecting the knob and the rotor so that the knob and the rotor rotate synchronously, wherein the knob can move axially relative to the adapter, and the adapter is arranged on the side of the motor facing the knob.

[0013] In some embodiments, the control panel includes a light-transmitting plate and a fixed plate stacked along the first direction, the fixed plate is located on the side of the light-transmitting plate facing the motor, the fixed plate has a hollow area, and the light-transmitting plate covers the hollow area; the electrical device includes a display screen, which is connected to the fixed plate and is located in the hollow area.

[0014] In some embodiments, the control device is also used to adjust the operating parameters of the electrical device according to the rotation position of the knob.

[0015] In some embodiments, the motor is a brushless DC motor.

[0016] In some embodiments, the electrical device includes: a cooking component disposed in the housing, the cooking component having a cooking cavity, and the housing having a loading and unloading port communicating with the cooking cavity.

[0017] The electrical device in the embodiment of the present application can provide an interactive function for the knob, so that the user can obtain operation feedback when an erroneous operation occurs, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of an electrical device according to an embodiment of the present application;

[0019] Figure 2 A schematic diagram of a partial structure of an electrical device according to an embodiment of the present application;

[0020] Figure 3 A schematic diagram of a partial structure of an electrical device according to an embodiment of the present application from another perspective;

[0021] Figure 4 for Figure 2 Explosion diagram of

[0022] Figure 5 for Figure 2 AA cross-sectional diagram of ;

[0023] Figure 6 for Figure 2 A partial schematic diagram of the BB section;

[0024] Figure 7 A flow chart of a control method for an electrical device according to an embodiment of the present application;

[0025] Figure 8-14 Schematic diagram of different usage scenarios of the electrical device and the control method thereof according to the embodiments of the present application.

[0026] Description of Reference Numerals

[0027] 1. Box body; 11. Control panel; 111. Light-transmitting plate; 112. Fixed plate; 112a. Hollow area; 2. Motor; 2a. Through hole; 21. Rotor; 22. Stator; 3. Knob; 31. Main body; 32. Cover; 4. Position sensor; 5. Control device; 6. Push switch; 7. Elastic reset member; 81. Mounting seat; 82. Support shaft; 82a. Wiring cavity; 83. Box body; 84. Wire; 85. Adapter; 9. Display screen. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] The various specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction, for example, different embodiments and technical solutions can be formed by combining different specific technical features. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features in the utility model will not be described separately.

[0030] In the following description, the terms "first\second\..." are only used to distinguish different objects, and do not mean that the objects have the same or related points. It should be understood that the directions "above", "below", "outside" and "inside" are all directions in normal use, and the directions "left" and "right" refer to the left and right directions shown in the specific corresponding schematic diagrams, which may be the left and right directions in normal use or not.

[0031] It should be noted that the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element. "Multiple" means greater than or equal to two.

[0032] The embodiments of the present application first provide an electrical device, which may be any electrical device that needs to be controlled by a knob 3, such as a cooking device, a clothing processing device, a refrigeration device, a washing device, etc., without limitation.

[0033] Reference Figure 1-Figure 6 The electrical device includes a box body 1, a motor 2, a knob 3, a position sensor 4 and a control device 5.

[0034] The box body 1 has a control panel 11 on one side along a first direction, where the first direction may be, for example, the front-to-back direction, the left-to-right direction, the height direction, etc. of the electrical device, and is not limited thereto.

[0035] Functional components may be arranged inside the housing 1. For example, the electrical device is a cooking device. The electrical device may include a cooking component (not shown in the figure). The cooking component may have a cooking cavity. The housing 1 may have a take-in and put-out opening (not shown in the figure) connected to the cooking cavity. The user may put food into the cooking cavity of the cooking component through the take-in and put-out opening. The specific structure of the functional component may refer to the relevant technology in the art, and will not be described in detail here.

[0036] The knob 3 protrudes from the outer surface of the control panel 11, so that the user can control the functional components by rotating the knob 3. Taking the electrical device as a cooking device as an example, the user can realize functions such as cooking mode selection and cooking parameter selection by rotating the knob 3.

[0037] As an example, see Figure 4The knob 3 may include a main body 31 and a cover body 32. The main body 31 and the cover body 32 are connected along a first direction. The cover body 32 mainly plays a decorative and / or identification role. For example, the surface of the cover body 32 facing away from the main body 31 may be etched with patterns, scales, identification patterns, etc., thereby improving the aesthetics and ease of use of the electrical equipment.

[0038] The motor 2 is arranged in the box body 1, and the motor 2 includes a rotor 21 and a stator 22. The knob 3 is connected to the rotor 21, so that the knob 3 and the rotor 21 will rotate synchronously. The synchronous rotation here means that when one of the knob 3 and the rotor 21 rotates, the other will also rotate accordingly, and the rotation angles of the two are the same.

[0039] The connection method between the knob 3 and the rotor 21 is not limited. For example, the knob 3 can be directly connected to the rotor 21 by means of a connecting piece such as a bolt, or the motor 2 can include an output shaft connected to the rotor 21, and the knob 3 can be indirectly connected to the rotor 21 through the output shaft.

[0040] The main structure of the knob 3 may be arranged outside the control panel 11 . The control panel 11 may have an opening, and a part of the structure of the knob 3 may extend into the interior of the box 1 through the opening and be connected to the rotor 21 .

[0041] The specific structure of the motor 2 is not limited. As an example, the motor 2 can be a brushless DC motor 2. The advantage of the brushless DC motor 2 is that the position of the rotor 21 can be measured more accurately, and the brushless DC motor 2 can be vector controlled (FOC control) with the help of the control device 5. The specific control principle can refer to the relevant technology in the field, which will not be repeated here.

[0042] It is understandable that the motor 2 may also be other motors capable of achieving similar functions, such as a stepping motor, etc. Those skilled in the art may choose one according to actual control requirements.

[0043] The position sensor 4 is used to detect the position of the rotor 21 . It can be understood that since the knob 3 and the rotor 21 rotate synchronously, detecting the position of the rotor 21 is equivalent to detecting the rotation position of the knob 3 .

[0044] Taking the motor 2 as a brushless DC motor 2 as an example, the position sensor 4 may be a Hall sensor, which can determine the position of the rotor 21 by measuring the change of magnetic flux.

[0045] It can be understood that the position sensor 4 can also be other suitable types of sensors as long as it can detect the position of the rotor 21. It should be noted that since the rotor 21 rotates synchronously with the knob 3 in this embodiment, the position sensor 4 can also be a sensor that can indirectly detect the position of the rotor 21 by detecting the position of the knob 3, such as a photoelectric code disk.

[0046] The control device 5 is electrically connected to the motor 2 and the position sensor 4. The control device 5 is used to obtain the rotation position of the knob 3 based on the position feedback of the position sensor 4, and is used to control the rotor 21 of the motor 2 to output resistance distance or vibration to the knob 3 when the knob 3 is rotated outside the knob operation range corresponding to the current operating mode of the electrical device.

[0047] The electrical connection between the control device 5 and the motor 2 and the position sensor 4 may be achieved through the wire 84, or may be achieved through the sending and receiving of wireless signals, near field communication, etc., without limitation.

[0048] The rotation position of the knob 3 refers to the position of a specific reference point on the knob 3. For example, a marking point is usually provided on the outer surface of the knob 3 for the user to determine the rotation of the knob 3. The rotation position of the knob 3 can be the position of the marking point. The knob operation range refers to the range within which the knob 3 is allowed to rotate.

[0049] The knob operation intervals corresponding to different operation modes of the electrical device may be different. Taking the electrical device as a cooking device as an example, the operation modes of the electrical device may include a lock mode, a cooking mode, a cooking parameter selection mode, etc. The user may not be allowed to turn the knob 3 in the lock mode and the cooking mode, so the knob operation interval may be 0°. In the cooking parameter selection mode, the user may be allowed to turn the knob 3 within a certain range, for example, the user may be allowed to turn the knob 3 within a range of 0-180°. In addition, the knob operation intervals when selecting different cooking parameters may also be different. For example, when selecting a cooking mode, the user may be allowed to turn the knob 3 within a range of 0-120°, and when selecting a cooking time, the user may be allowed to turn the knob 3 within a range of 0-240°. It should be noted that the above range may be an angle range starting from the current position of the knob 3, or an angle range starting from a fixed position, and there is no limitation on this.

[0050] Different operating modes of the electrical device and their corresponding knob operation ranges can be set by technicians in this field according to specific usage requirements and / or set by the user, and there is no limitation on this.

[0051] The knob operation intervals corresponding to different operation modes of the electrical device can be written into the control device 5. If the knob 3 is rotated outside the knob operation interval corresponding to the current operation mode of the electrical device, the control device 5 can send a control instruction to the motor 2 to make the rotor 21 of the motor 2 output a torque opposite to the current rotation direction of the knob 3, thereby outputting a resistance torque to the knob 3. Alternatively, the control device 5 can send a control instruction to the motor 2 to make the rotor 21 of the motor 2 reciprocate at a high frequency and in a small range, thereby outputting vibration to the knob 3.

[0052] In the electrical device of this embodiment, position detection is performed with the help of position sensor 4, and the control device 5 and motor 2 are used to provide interactive functions for knob 3, so that the user can obtain operation feedback when an erroneous operation occurs, thereby improving the user experience and facilitating the user to adjust the electrical device more accurately.

[0053] Furthermore, in the present embodiment, the knob operation interval corresponds to the current operating mode of the electrical device, that is, different knob operation intervals can be set for different operating modes of the electrical device, so that control in multiple operating modes can be completed with one knob 3, and operation feedback can be provided to the user in the event of an erroneous operation in multiple operating modes.

[0054] In this embodiment, the above-mentioned operation feedback is achieved by the control device 5 controlling the action of the motor 2. Compared with the operation feedback provided by a purely mechanical structure (for example, an encoder with a damping structure) in the related art, the operation feedback provided by the control device 5 in cooperation with the motor 2 in the embodiment of the present application is editable. Therefore, it is possible to change the interaction logic of the electrical device and / or add new interaction logic without changing the hardware structure, thereby adapting to the needs of upgrading the electrical device and the personalized usage needs of users.

[0055] Specifically, the control logic of the control device 5 can be rewritten to change the control instructions sent by the control device 5 to the motor 2, thereby changing the action of the motor 2 and changing the strength, style, time, etc. of the operational feedback provided by the motor 2, thereby realizing the change of the interaction logic and / or adding new interaction logic.

[0056] In the above embodiment, the control device 5 can specifically adopt a field-oriented control (FOC) method to control the action of the motor 2. The specific control method of the control device 5 and the specific method of rewriting the control logic of the control device 5 can refer to the relevant technology in the field and will not be repeated here.

[0057] In some embodiments, the control device 5 is further used to adjust the operating parameters of the electrical device according to the rotation position of the knob 3. The operating parameters of the electrical device here specifically refer to the operating parameters of the functional components in the electrical device. Taking the electrical device as a cooking device as an example, the operating parameters of the electrical device refer to the operating parameters of the cooking component, such as the heating temperature, heating time, and operating mode of the cooking component.

[0058] It can be understood that in the present embodiment, the rotational position of the knob is obtained by the control device 5 based on the position feedback of the position sensor 4, that is, it is obtained based on the rotor position of the motor 2. Compared with the technical solution of directly detecting the knob position in the related technology, the present embodiment can improve the accuracy of the knob position detection, and thus can improve the accuracy of adjusting the operating parameters according to the rotational position of the knob.

[0059] In addition, the control device 5 can also make the correspondence between the rotation position of the knob 3 and the operating parameters of the electrical device editable. For example, assuming that the heating temperature increases by 2°C for every 1° rotation of the knob 3 under the original control logic, after rewriting the control logic of the control device 5, the heating temperature can be increased by 4°C for every 1° rotation of the knob 3. For another example, assuming that the locking or unlocking of the cooking component cannot be adjusted when the knob 3 is rotated under the original control logic, after rewriting the control logic of the control device 5, an unlocking mode can be added, in which the locking or unlocking of the cooking component can be adjusted when the knob 3 is rotated. Thus, the control logic can be changed and / or new control logic can be added without changing the hardware structure of the electrical device.

[0060] In some embodiments, reference Figure 4-Figure 6 The rotor 21 of the motor 2 surrounds the outer circumference of the stator 22 , and the position sensor 4 is arranged on the axial side of the stator 22 away from the knob 3 .

[0061] In this embodiment, the motor 2 is an outer rotor 21 motor 2, and the advantage of the outer rotor 21 motor 2 is that the knob 3 and the rotor 21 may not be connected through an output shaft, thereby improving the synchronization of the movement of the rotor 21 and the knob 3 and the stability of the connection, so that the resistance distance or vibration output by the rotor 21 to the knob 3 can be better transmitted to the knob 3, improving the feedback effect, and the position of the rotor 21 can more accurately reflect the position of the knob 3. The position sensor 4 is arranged on the axial side of the stator 22 away from the knob 3, which helps to improve the accuracy of the rotor 21 position detection.

[0062] In some embodiments, the central axis of the knob 3 may coincide with the central axis of the motor 2 , thereby further improving the synchronization of the movement of the rotor 21 and the knob 3 .

[0063] In some embodiments, the center line of the position sensor 4 may coincide with the center axis of the motor 2, thereby further improving the accuracy of position detection. Taking the position sensor 4 as a Hall sensor as an example, the center line of the position sensor 4 may refer to the normal line of the center point of the sensing surface.

[0064] In some embodiments, the position sensor 4 includes a Hall sensor, which can provide more refined position detection compared to other types of position sensors 4, thereby allowing the control device 5 to control the motor 2 to provide more refined operational feedback.

[0065] In some embodiments, reference Figure 4-Figure 6 The electrical device includes a push switch 6, and the knob 3 can move in the axial direction and in the direction close to the box body 1 under the action of an external force to trigger the push switch 6. In this way, in addition to rotating the knob 3 for control, the user can also control by pressing the knob 3, making the function of the knob 3 more abundant. As an example, the user can press the knob 3 to trigger the push switch 6 to lock and unlock the electrical device.

[0066] The axial direction here refers to the direction parallel to the central axis of the knob 3. As an example, the knob 3 can be connected to the rotor 21 through a sliding column, and the sliding column can extend along the axial direction of the knob 3. The knob 3 and the sliding column slide together, so that the knob 3 can move in the axial direction and close to the box 1 under the action of external force.

[0067] In some embodiments, the electrical device includes an elastic reset member 7, which is used to accumulate elastic force when the knob 3 moves axially and in a direction close to the housing 1. The elastic force is used to drive the knob 3 to move axially and away from the housing 1 for reset.

[0068] The specific structure of the elastic reset member 7 is not limited, such as a spring, an elastic gasket, etc. The elastic reset member 7 can be arranged outside the control panel 11 and between the knob 3 and the control panel 11, or can be arranged inside the control panel 11 and between the knob 3 and the push switch 6.

[0069] In some embodiments, reference Figure 4-Figure 6 As described above, the rotor 21 can surround the outer circumference of the stator 22. In this case, the center line of the push switch 6 can coincide with the center axis of the motor 2 and the center axis of the knob 3, that is, the three can be coaxially arranged. In this way, the stability of the knob 3 triggering the push switch 6 can be improved.

[0070] In the embodiment where the rotor 21 surrounds the outer circumference of the stator 22, continue to refer to Figure 4-Figure 6 The electrical device may further include a mounting seat 81 and a support shaft 82. The stator 22 may be connected to the mounting seat 81. The support shaft 82 may be disposed on the mounting seat 81 and extend along a first direction. The stator 22 has a through hole 2a. The through hole 2a penetrates the stator 22 along a first direction. The support shaft 82 is passed through the through hole 2a. In this way, the motor 2 can be better supported and the stability of the motor 2 can be improved.

[0071] It should be noted that the central axis of the through hole 2 a needs to coincide with the central axis of the motor 2 so that the rotor 21 can rotate around the stator 22 more smoothly.

[0072] The specific structure of the mounting seat 81 and the support shaft 82 is not limited. The mounting seat 81 and the support shaft 82 can be an integrated structure, or can be connected together by welding, bonding, threaded connection, etc., without limitation.

[0073] As an example, the electrical device may include a box body 83, which is disposed in the box body 1 and is enclosed together with the control panel 11 to form a control box, in which the mounting seat 81 and the motor 2 may be disposed, and the mounting seat 81 may be connected to a wall of the box body 83. In this way, the motor 2 is installed in a relatively closed environment, which can prevent other components in the electrical device from interfering with the operation of the motor 2. Obviously, the arrangement of the mounting seat 81 is not limited thereto, such as the mounting seat 81 may be directly connected to a wall of the box body 1, or connected to other components in the box body 1.

[0074] In some embodiments, the position sensor 4 can be arranged on the side of the mounting seat 81 away from the stator 22, and the center line of the position sensor 4 can coincide with the center axis of the stator 22. In this way, on the one hand, the accuracy of position detection can be improved, and on the other hand, the space between the stator 22 and the mounting seat 81 will not be occupied, so that the stator 22 can be more closely combined with the mounting seat 81, thereby improving the installation stability of the motor 2. On the other hand, it is convenient to replace the position sensor 4 when it fails.

[0075] In some embodiments, a wiring cavity 82a is formed inside the support shaft 82, and at least a portion of the wiring cavity 82a extends along a first direction. The electrical equipment includes a wire 84, and the wire 84 is used to connect the push switch 6 and the control device 5. A portion of the wire 84 passes through the wiring cavity 82a. In this way, on the one hand, it is convenient for wiring, and on the other hand, it can protect the wire 84, reduce the probability of the wire 84 being wound during the movement of the motor 2, and improve the service life of the wire 84.

[0076] As an example, see Figure 4 The wiring cavity 82a can extend from one end of the support shaft 82 to the other end, and the wire 84 can enter the wiring cavity 82a from the end of the support shaft 82 close to the push switch 6, and pass through the wiring cavity 82a from the side of the mounting seat 81 toward or away from the stator 22, or pass through the wiring cavity 82a from the inside of the mounting seat 81.

[0077] In some embodiments, reference Figure 4-Figure 6The electrical device includes an adapter 85, which connects the knob 3 and the rotor 21 so that the knob 3 and the rotor 21 rotate synchronously, wherein the knob 3 can move axially relative to the adapter 85, and the adapter 85 is arranged on the side of the motor 2 facing the knob 3.

[0078] In this embodiment, the knob 3 is connected to the rotor 21 via the adapter 85 rather than being directly connected to the rotor 21. This can reduce the length of the portion of the knob 3 extending into the housing 1, facilitate assembly, and improve the stability of the knob 3 during use.

[0079] The adapter 85 may be a disc-shaped structure, which may be connected to the rotor 21 by a connection member such as a bolt, or may be connected to the rotor 21 by bonding, etc. The knob 3 may be connected to the adapter 85 by, for example, the sliding column mentioned above, so that the knob 3 can move axially relative to the adapter 85.

[0080] Further, in some embodiments, a mounting hole may be formed on the surface of the adapter 85 facing the knob 3, and a portion of the push switch 6 may be located in the mounting hole, so that, on the one hand, the layout can be made more compact, and on the other hand, the push switch 6 can be positioned to a certain extent to improve its stability in use. The mounting hole may be connected to the wiring cavity 82a, so that the wire 84 enters the wiring cavity 82a through the mounting hole.

[0081] In this embodiment, the push switch 6 can be fixed in the installation groove, that is, the push switch 6 can rotate synchronously with the knob 3, the adapter 85 and the rotor 21, or the push switch 6 can slide in cooperation with the installation groove, that is, it may not rotate with the knob 3, the adapter 85 and the rotor 21.

[0082] In some embodiments, reference Figure 3 , 4 6. The control panel 11 may include a light-transmitting plate 111 and a fixed plate 112 stacked in a first direction, the fixed plate 112 being located on the side of the light-transmitting plate 111 facing the motor 2, the fixed plate 112 having a hollow area 112a, and the light-transmitting plate 111 covering the hollow area 112a. The electrical device may include a display screen 9, the display screen 9 being connected to the fixed plate 112 and being located in the hollow area 112a. In this way, the optical signal emitted by the display screen 9 may be transmitted to the user via the light-transmitting plate 111.

[0083] In this embodiment, the electrical device is equipped with a display screen 9, which can be used to display relevant information such as the operating status of the electrical device. Since the display screen 9 is arranged on the inner side of the light-transmitting plate 111 instead of being directly embedded in the surface of the box 1, it has better aesthetics and longer service life.

[0084] The embodiment of the present application further provides a control method for an electrical device, wherein the electrical device comprises a motor 2 and a knob 3, wherein the knob 3 is connected to the motor 2. The electrical device may be the electrical device described in any of the above embodiments, or may be any electrical device in the art equipped with a knob 3 and a motor 2, without limitation thereto.

[0085] It should be noted that the control method described in any of the following embodiments can be implemented by the control device 5 described above.

[0086] Reference Figure 7 , the control method provided in the embodiment of the present application includes the following steps.

[0087] Step S102: Acquire the current operation mode of the electrical device.

[0088] Step S104: Determine the knob operation range corresponding to the current operation mode of the electrical device.

[0089] Step S106: Obtain the rotation position of knob 3.

[0090] Step S108 : if the knob 3 is rotated out of the knob operation range, the motor 2 is controlled to output a resistance distance or vibration to the knob 3 .

[0091] The control method provided in this embodiment can provide an interactive function for the knob 3, so that the user can obtain operation feedback when an erroneous operation occurs, thereby improving the user experience.

[0092] The following will mainly describe the control method of the embodiment of the present application by taking the electrical device including a cooking component as an example, that is, the electrical device is a cooking device as an example.

[0093] In step S102, the operation mode of the electrical device may include at least one of a lock mode, a cooking in progress mode, and a cooking parameter selection mode. The cooking parameter selection mode may further include a cooking method selection mode, a cooking time selection mode, a cooking temperature selection mode, etc. Those skilled in the art may set the mode according to the specific functions that the electrical device needs to realize.

[0094] In step S104, it is necessary to determine the knob operation range corresponding to the current operation mode of the electrical device. The correspondence between the operation mode and the knob operation range can be preset when the electrical device leaves the factory, and the user can also set it during actual use.

[0095] The knob operation interval refers to the range in which the knob 3 is allowed to rotate. The knob operation interval may be an interval starting from the current position of the knob 3 or a certain set position. The knob operation intervals corresponding to different operation modes may be different or not completely the same. The knob operation interval in some operation modes may be 0, that is, the knob 3 is not allowed to rotate. For example, the knob operation interval corresponding to the lock mode and / or the cooking in progress mode may be 0.

[0096] In step S106, the rotation position of the knob 3 needs to be determined. As described above, the rotation position of the knob 3 refers to the position of a specific point on the knob 3. The rotation position can be determined by receiving a signal from the position sensor 4 mentioned above.

[0097] Step S106 may be executed at a set frequency during the process of rotating the knob 3 , that is, the rotation position of the knob 3 is continuously monitored during the process of rotating the knob 3 .

[0098] In step S108, if the knob 3 is rotated outside the knob operation range, the motor 2 is controlled to output a resistance distance or vibration to the knob 3, so that the user can get feedback. Controlling the motor 2 to output a resistance distance or vibration to the knob 3 can be achieved by sending a control instruction to the motor 2 to change its working current. Specifically, the rotor 21 of the motor 2 can be controlled to generate a torque opposite to the current rotation direction of the knob 3, so that the motor 2 outputs a resistance distance to the knob 3, or the rotor 21 of the motor 2 can be controlled to perform a fast, small-range reciprocating motion, so that the motor 2 outputs vibration to the knob 3.

[0099] In some embodiments, in step S108, it can be determined whether the control motor 2 outputs resistance or vibration to the knob 3 according to the current operation mode of the electrical device. For example, when the current operation mode of the electrical device is the locking mode and / or the cooking in progress mode, if the knob 3 is rotated outside the knob operation range, the control motor 2 outputs vibration to the knob 3. When the current operation mode of the electrical device is the cooking parameter selection mode, if the knob 3 is rotated outside the knob operation range, the control motor 2 outputs resistance to the knob 3. In this way, the interactive function of the knob 3 is enriched, and the user experience is further improved.

[0100] In this embodiment, the correspondence between the operation mode of the electrical device and the interaction mode (output resistance distance or vibration) can be preset when the electrical device leaves the factory, or the user can set it by himself during actual use, without any restriction.

[0101] In some embodiments, in step S108, the magnitude of the resistance distance is positively correlated with the over-rotation distance of the knob 3 in at least a partial range, where the over-rotation distance is the distance between the rotation position of the knob 3 and the end position of the knob operation interval. In this way, the user can more clearly perceive that he is in the process of misoperation, thereby improving the user's experience.

[0102] It should be noted that, when the knob operation interval is not 0, the knob operation interval may have two endpoints, and the end position here refers to the position of the end point of the knob operation interval in the current rotation direction of the knob 3.

[0103] Since the ability of motor 2 to output resistance distance to knob 3 is limited, the size of the resistance distance can be positively correlated only within a partial range. When the resistance distance increases to the maximum allowable resistance distance, the resistance distance may no longer increase with the increase of the over-rotation distance, so as to reduce the probability of failure of motor 2.

[0104] The magnitude of the resistance distance may be linearly related to the superspin distance within a certain range. Alternatively, the magnitude of the resistance distance may be stepwise related to the superspin distance within a certain range, for example, the magnitude of the resistance distance is characterized by 1-5, when the superspin distance is 0-5°, the resistance distance is 1, and when the superspin distance is 5-10°, the resistance distance is 2.

[0105] Of course, those skilled in the art will appreciate that the resistance distance may also be a fixed value, and does not change according to the super-rotation distance.

[0106] In some embodiments, the resistance distance may be determined to be a fixed value or to be positively correlated with the super-rotation distance in at least a partial range according to the current operation mode of the electrical device. For example, when the current operation mode of the electrical device is the locking mode and / or the cooking in progress mode, the resistance distance may be a fixed value, and when the current operation mode of the electrical device is the cooking parameter selection mode, the resistance distance may be positively correlated with the super-rotation distance in at least a partial range.

[0107] In some embodiments, the size of the resistance distance can be determined specifically according to the current operation mode of the electrical device. That is, in different operation modes, the size of the resistance distance can be different, and the size of the resistance distance is still characterized by 1-5. When the current operation mode of the electrical device is the locking mode, the size of the resistance distance can be 5, and when the current operation mode of the electrical device is the cooking mode, the size of the resistance distance can be 3.

[0108] In some embodiments, after step S108, the control method further includes: controlling the motor 2 to drive the knob 3 back to the knob operation range, so that the knob 3 can be automatically reset after the user's misoperation, so that the user can continue to use it later.

[0109] In some embodiments, controlling the motor 2 to drive the knob 3 back to the operating range may specifically include controlling the motor 2 to drive the knob 3 back to the end position of the knob operating range.

[0110] In some embodiments, controlling the motor 2 to drive the knob 3 back to the operating range may include controlling the motor 2 to drive the knob 3 back to an initial position, where the initial position is the position detected when the knob 3 starts to rotate. In this embodiment, when obtaining the rotation position of the knob 3 in step S106, the initial position may be recorded.

[0111] In some embodiments, whether to control motor 2 to drive knob 3 back to the end position or the initial position can be determined according to the current operating mode of the electrical device. For example, in the cooking method selection mode, motor 2 can be controlled to drive knob 3 back to the end position. In the cooking time selection mode and the cooking temperature selection mode, motor 2 can be controlled to drive knob 3 back to the initial position, thereby facilitating subsequent operations.

[0112] The correspondence between the current operation mode of the electrical device and the position of the knob 3 after reset (the end position of the knob operation range or the initial position) can be preset when the electrical device leaves the factory or can be set by the user, and there is no limitation on this.

[0113] In some embodiments, the control method further includes: receiving a setting instruction, and setting the knob operation intervals corresponding to the different operation modes of the electrical device according to the setting instruction. In this way, the flexibility of interaction can be improved, thereby improving the user experience.

[0114] In some embodiments, the control method further includes: obtaining a feedback point within the knob operation range, and if the knob 3 is rotated to the feedback point, controlling the motor 2 to output a second resistance distance or a second vibration to the knob 3. In this way, certain feedback can be provided to the user during the user's normal operation to improve the user's smoking habits.

[0115] The feedback point here may refer to a point within the knob operation range that can trigger a certain operation, or a point that prompts the user that the knob 3 has been turned a certain distance. For example, in the cooking method switching mode, the cooking method may be switched once the knob 3 is turned 5°, so a feedback point may be set every 5° within the knob operation range. For another example, in the cooking temperature selection mode and the cooking time selection mode, a feedback point may be set every 5° or 10° to prompt the user the rotation range of the knob 3.

[0116] It can be understood that since the knob operation range itself corresponds to the operating mode of the electrical device, the feedback point also corresponds to the operating mode of the electrical device. When setting the knob operation range corresponding to the operating mode, the feedback point within the knob operation range can be determined at the same time.

[0117] The difference between the second resistance distance here and the resistance distance in step S108 is that the second resistance distance is a fixed value and is smaller than the resistance distance in step S108. The size of the resistance distance is represented by 1-5. The second resistance distance can be 1, while the resistance distance in step S108 can be 3-5. The difference between the second vibration here and the vibration in step S108 is that the frequency and / or amplitude of the second vibration are smaller than the frequency and / or amplitude of the vibration in step S108. Those skilled in the art can determine the specific value of the second resistance distance, as well as the specific frequency and amplitude of the second vibration according to actual needs, so that the user can perceive the difference between the second resistance distance and the second vibration and the resistance distance and vibration in step S108.

[0118] As another possible implementation, different feedback may be output when the knob 3 is rotated to a feedback point and when the knob 3 is rotated outside the knob operation range to enable the user to distinguish. For example, if the knob 3 is rotated to the feedback point, vibration is output; if the knob 3 is rotated outside the knob operation range, resistance distance is output.

[0119] The control method of the embodiment of the present application will be described in more detail and specifically below in combination with several specific application scenarios.

[0120] Reference Figure 8 The current operation mode of the electrical equipment is the locking mode, and the corresponding knob operation range is 0. If the position of knob 3 is outside the knob operation range, the motor 2 is controlled to output the resistance distance to knob 3.

[0121] Specifically, the initial position of the knob 3 is at the position shown in 8A. If the user rotates the knob 3 to the position shown in 8B or 8C, the motor 2 will output a resistance distance to the knob 3, with 1-5 representing the magnitude of the resistance distance. At this time, the magnitude of the resistance distance is 3, and the resistance distance will increase with the increase of the super-rotation distance in a partial range. For example, if the user continues to rotate the knob 3 to the position shown in 8D and 8E, the magnitude of the resistance distance becomes 5. After the user lets go, referring to 8F and 8G, the motor 2 will drive the knob 3 back to the initial position.

[0122] Reference Fig. 9 , the current operation mode of the electrical equipment is the locking mode, and the corresponding knob operation interval is 0. If the position of knob 3 is outside the knob operation interval, the motor 2 is controlled to output vibration to knob 3.

[0123] Specifically, the initial position of the knob 3 is at the position shown in 9A. If the user rotates the knob 3 to the position shown in 9B, referring to 9C, the motor 2 will output vibration to the knob 3.

[0124] Reference Fig.10 , the current operation mode of the electrical device is the cooking mode, the knob operation range is 0, and if the position of knob 3 is outside the knob operation range, the motor 2 is controlled to output vibration to knob 3.

[0125] Specifically, the initial position of the knob 3 is at the position shown in 10A. If the user rotates the knob 3 to the position shown in 10B, referring to 10C, the motor 2 will output vibration to the knob 3.

[0126] Reference Fig.11 The current operation mode of the electrical equipment is the cooking temperature selection mode, and the end position of the corresponding knob operation range is the position indicating the cooking temperature is 300°C. If the position of knob 3 is outside the knob operation range, the control motor 2 outputs the resistance distance to knob 3.

[0127] Specifically, if the user turns the knob 3 to the end position of the knob operation interval in 11A, then refer to 11B, the motor 2 will not output the resistance distance to the knob 3. If the user continues to turn the knob 3 to the position in 11C, the motor 2 will output the resistance distance to the knob 3. The resistance distance is represented by 1-5. The resistance distance at this time is 3. The resistance distance is positively correlated with the super rotation distance in a certain range. If the user continues to turn the knob 3 to the position in 11D, the resistance distance increases to 5. After the user lets go, refer to 11E, the motor 2 will drive the knob 3 back to the end position of the knob operation interval.

[0128] Reference Fig.12 The current operation mode of the electrical equipment is the cooking temperature selection mode, and the end position of the corresponding knob operation range is the position indicating the cooking temperature is 300°C. If the position of knob 3 is outside the knob operation range, the control motor 2 outputs vibration to knob 3.

[0129] Specifically, if the user turns knob 3 to the end position of the knob operation interval in 12A, motor 2 will not output vibration to knob 3. If the user continues to turn knob 3 to the position in 12B, refer to 12C, motor 2 will output vibration to knob 3.

[0130] Reference Fig.13 The current operation mode of the electrical equipment is the cooking time selection mode, and the end position of the corresponding knob operation range is the position indicating that the cooking time is 0. If the position of knob 3 is outside the knob operation range, the control motor 2 outputs the resistance distance to knob 3.

[0131] Specifically, if the knob 3 is rotated to the end position of the knob operation interval in 13A, then refer to 13B, the motor 2 will not output the resistance distance to the knob 3. If the user rotates the knob 3 to the position shown in 13C, the motor 2 will output the resistance distance to the knob 3. The resistance distance is represented by 1-5. The resistance distance at this time is 3. The resistance distance is positively correlated with the super rotation distance in a certain range. If the user continues to rotate the knob 3 to the position in 13D, the resistance distance increases to 5. After the user lets go, refer to 13E, the motor 2 will drive the knob 3 back to the end position of the knob operation interval.

[0132] Reference Fig.14 The current operation mode of the electrical device is the cooking method selection mode, and the end position of the knob operation range is the position indicating the last optional operation mode. If the position of knob 3 is outside the knob operation range, the control motor 2 outputs the resistance distance to knob 3.

[0133] Specifically, the initial position of the knob 3 is the position shown in 14A. When the user rotates the knob within the operating range, such as when it is rotated to the positions shown in 14B and 14C, the motor 2 will not output a resistance distance to the knob 3. When it is rotated to the position shown in 14D, the motor 2 will output a resistance distance to the knob 3. The resistance distance is represented by 1-5. The resistance distance at this time is 5, and the resistance distance is a fixed value. After the user lets go, refer to 14E, the motor 2 will drive the knob 3 back to the end position of the knob operating range.

[0134] An embodiment of the present application further provides a computer device, which includes a memory and a processor, wherein the memory stores a computer program executable on the processor, and when the processor executes the computer program, the steps in the method described in any of the above embodiments are implemented.

[0135] The hardware entity of the computer device includes: a processor, a communication interface and a memory, wherein: the processor generally controls the overall operation of the computer device. The communication interface enables the computer device to communicate with other terminals or servers through a network. The memory is configured to store instructions and applications executable by the processor, and can also cache data to be processed or processed by the processor and various modules in the computer device (for example, image data, audio data, voice communication data and video communication data), which can be implemented through flash memory (FLASH) or random access memory (Random Access Memory, RAM). Data can be transmitted between the processor, the communication interface and the memory through a bus.

[0136] An embodiment of the present application further provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps in the method described in any of the above embodiments are implemented.

[0137] The computer readable storage medium may be transitory or non-transitory.

[0138] An embodiment of the present application further provides a computer program product, which includes a computer program or instructions. When the computer program or instructions are executed by a processor, the steps in the method described in any of the above embodiments are implemented.

[0139] The computer program product may be implemented in hardware, software or a combination thereof. In some embodiments, the computer program product is embodied as a computer storage medium, and in other embodiments, the computer program product is embodied as a software product, such as a software development kit (SDK).

[0140] It should be noted here that the description of the various embodiments above tends to emphasize the differences between the various embodiments, and the same or similar aspects can be referenced to each other. The description of the above device, storage medium, computer program and computer program product embodiments is similar to the description of the above method embodiment, and has similar beneficial effects as the method embodiment. For technical details not disclosed in the embodiments of the device, storage medium, computer program and computer program product of this application, please refer to the description of the method embodiment of this application for understanding.

[0141] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0142] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electrical device, characterized in that: The electrical equipment includes: A box body, wherein one side of the box body along the first direction has a control panel; A motor is arranged in the box, and the motor includes a rotor and a stator; A knob connected to the rotor and protruding from the outer surface of the control panel; a position sensor for detecting the position of the rotor, and A control device is electrically connected to the motor and the position sensor, and is used to obtain the rotation position of the knob based on the position feedback of the position sensor, and is used to control the rotor of the motor to output a resistance torque or vibration to the knob when the knob is rotated outside the knob operation range corresponding to the current operating mode of the electrical device.

2. The electrical equipment according to claim 1, characterized in that: The rotor surrounds the outer circumference of the stator, and the position sensor is arranged on an axial side of the stator away from the knob.

3. The electrical device according to claim 1, characterized in that: The electrical equipment includes: The push switch is configured such that the knob can move axially and in a direction close to the housing under the action of an external force, thereby triggering the push switch.

4. The electrical equipment according to claim 3, characterized in that: The electrical equipment includes: An elastic reset member is used to accumulate elastic force when the knob moves axially and in a direction close to the box body, and the elastic force is used to drive the knob to move axially and away from the box body to reset.

5. The electrical equipment according to claim 3, characterized in that: The rotor surrounds the outer circumference of the stator, and the electrical equipment includes: A mounting seat, the stator being connected to the mounting seat; The support shaft is arranged on the mounting seat and extends along the first direction. The stator has a through hole, the through hole penetrates the stator along the first direction, and the support shaft is passed through the through hole.

6. The electrical equipment according to claim 5, characterized in that: The position sensor is arranged on a side of the mounting seat away from the stator, and a center line of the position sensor coincides with a center axis of the stator.

7. The electrical equipment according to claim 5, characterized in that: A wiring cavity is formed inside the support shaft, and at least a portion of the wiring cavity extends along the first direction. The electrical device includes a wire, and the wire is used to connect the push switch and the control device. A portion of the wire passes through the wiring cavity.

8. The electrical equipment according to claim 3, characterized in that: The electrical equipment includes: An adapter connects the knob and the rotor so that the knob and the rotor rotate synchronously, wherein the knob can move axially relative to the adapter, and the adapter is arranged on a side of the motor facing the knob.

9. The electrical device according to claim 1, characterized in that: The control panel comprises a light-transmitting plate and a fixing plate stacked along the first direction, the fixing plate is located on a side of the light-transmitting plate facing the motor, the fixing plate has a hollow area, and the light-transmitting plate covers the hollow area; The electrical device comprises a display screen, which is connected to the fixing plate and is located in the hollow area.

10. The electrical equipment according to any one of claims 1 to 9, characterized in that: The control device is also used to adjust the operating parameters of the electrical equipment according to the rotation position of the knob.

11. The electrical device according to any one of claims 1 to 9, characterized in that: The motor is a brushless DC motor.

12. The electrical device according to any one of claims 1 to 9, characterized in that: The electrical equipment includes: The cooking component is arranged in the box body, the cooking component has a cooking cavity, and the box body has a taking and placing opening communicated with the cooking cavity.

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