CN219936338U - Off-axis detection magnetic knob and electric appliance - Google Patents
Off-axis detection magnetic knob and electric appliance Download PDFInfo
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- CN219936338U CN219936338U CN202321139330.XU CN202321139330U CN219936338U CN 219936338 U CN219936338 U CN 219936338U CN 202321139330 U CN202321139330 U CN 202321139330U CN 219936338 U CN219936338 U CN 219936338U
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- 230000015572 biosynthetic process Effects 0.000 claims description 2
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- 230000009286 beneficial effect Effects 0.000 abstract description 7
- 230000003028 elevating effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010420 art technique Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of knobs, and provides an off-axis detection magnetic knob and an electric appliance, wherein the off-axis detection magnetic knob comprises: a base; the rotating piece is rotatably arranged on the base; the magnet is connected with the rotating piece and deviates from the rotating axis of the rotating piece, the magnet revolves around the rotating axis of the rotating piece under the drive of the rotating piece, the direction of the rotating axis of the rotating piece is taken as a first direction, and the magnetization direction of the magnet is arranged along the first direction; and the circuit board is provided with a magnetic sensor, the magnetic sensor is arranged in the middle of the rotation axis of the rotating piece, and the magnetic sensor is used for detecting the revolution angle of the magnet. The off-axis detection magnetic knob adopts the revolution of the magnet placed off-axis to realize the detection of the rotation angle, and the volume of the magnet can be smaller, thereby being beneficial to reducing the cost and the weight of the magnetic knob.
Description
Technical Field
The utility model belongs to the technical field of knobs, and particularly relates to an off-axis detection magnetic knob and an electric appliance.
Background
Magnetic knobs are a common prior art technique that implements the function of a knob by detecting the rotation angle of a magnet by a magnetic sensor.
CN217386967U discloses a magnetic induction knob with a display function, which adopts a magnetic sensor and a ring magnet which are arranged in the center, however, the volume of the ring magnet is larger, the cost is higher, and the ring magnet is heavier, which is not beneficial to the popularization of the magnetic knob.
Disclosure of Invention
The utility model aims to provide an off-axis detection magnetic knob and an electric appliance, which are used for solving the technical problems of larger and heavier magnets adopted by the magnetic knob in the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an off-axis detection magnetic knob is provided, comprising:
a base;
the rotating piece is rotatably arranged on the base;
the magnet is connected with the rotating piece and deviates from the rotating axis of the rotating piece, the magnet revolves around the rotating axis of the rotating piece under the drive of the rotating piece, the direction of the rotating axis of the rotating piece is taken as a first direction, and the magnetization direction of the magnet is set along the first direction;
the circuit board is provided with a magnetic sensor, the magnetic sensor is arranged in the middle of the rotation axis of the rotating piece, and the magnetic sensor is used for detecting the revolution angle of the magnet.
Optionally, the circuit board further comprises a lifting support, wherein the lifting support can lift along a first direction relative to the base, and the circuit board is mounted on the lifting support.
Optionally, the circuit board is further provided with a button, the button is located on one side of the circuit board, which is close to the base, and when the lifting support descends with the circuit board, the base triggers the button.
Optionally, the lifting support is driven by the resilience of the button itself to rebound.
Optionally, the lifting bracket has a movable channel extending in a first direction, the rotation axis of the rotator passes through the movable channel, and the base has a jack post inserted into the movable channel, the jack post being used for triggering the button.
Optionally, the device further comprises a soft rubber cap, wherein the soft rubber cap is located in the movable channel and located between the jacking column and the button, the movable channel is blocked by the soft rubber cap, the jacking column touches the button through the soft rubber cap, and the soft rubber cap is made of rubber.
Optionally, the display screen is mounted on the screen seat, the screen seat is connected with the lifting support to form a circuit cavity, and the circuit board is located in the circuit cavity.
Optionally, the lifting device also comprises a rotating seat which can rotate relative to the base and the lifting bracket, the rotating piece is fixedly connected with the rotating seat and is in a sleeve shape, the top of rotating the piece is equipped with the eaves portion that extends inwards, eaves portion with rotate the seat formation to the screen seat with the restriction of lifting support along the first direction.
Optionally, the lifting support is provided with a first connecting portion extending along a first direction, the first connecting portion is provided with the movable channel, the base is provided with a second connecting portion, the second connecting portion is sleeved on the radial outer side of the first connecting portion, the rotating base is provided with an annular portion, the annular portion is sleeved on the radial outer side of the second connecting portion, and the magnet is mounted on the radial outer side of the annular portion.
The utility model also provides an electric appliance, which comprises any off-axis detection magnetic knob, wherein the off-axis detection magnetic knob is arranged on an operation panel of the electric appliance and used for controlling the work of the electric appliance.
The off-axis detection magnetic knob provided by the utility model has the beneficial effects that: compared with the prior art, the off-axis detection magnetic knob comprises a base, a rotating piece, a magnet and a circuit board, wherein a user operates the rotating piece to rotate so as to drive the magnet to revolve around the rotation axis of the rotating piece, and a magnetic sensor on the circuit board detects the revolution angle of the magnet so as to know the rotation angle of the rotating piece to realize the knob function; the revolution of the magnet placed off-axis is adopted to realize the detection of the rotation angle, and the volume of the magnet can be made smaller, so that the cost and the weight of the magnetic knob are reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an off-axis detection magnetic knob according to an embodiment of the present utility model.
FIG. 2 is an exploded view of an off-axis detection magnetic knob according to an embodiment of the present utility model.
FIG. 3 is a cross-sectional view of an off-axis detection magnetic knob provided by an embodiment of the utility model.
Fig. 4 is a schematic diagram of a magnetic induction detection principle of an off-axis detection magnetic knob according to an embodiment of the present utility model.
Wherein, each reference sign in the figure:
the portable electronic device comprises a 10-base, a 11-top column, a 12-second connecting part, a 20-rotating part, a 21-eave part, a 30-magnet, a 40-circuit board, a 41-magnetic sensor, a 42-button, a 50-lifting support, a 51-first connecting part, a 52-movable channel, a 60-rotating seat, a 61-annular part, a 70-soft rubber cap, a 80-display screen and a 90-screen seat.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1 to 3, an off-axis detecting magnetic knob according to an embodiment of the present utility model will be described. Off-axis detection of a magnetic knob includes: base 10, rotor 20, magnet 30, circuit board 40, lifting support 50, rotation seat 60, soft rubber cap 70, display 80 and screen seat 90.
The rotating member 20 is rotatably mounted to the base 10; the magnet 30 is connected with the rotating member 20 and deviates from the rotation axis of the rotating member 20, the magnet 30 revolves around the rotation axis of the rotating member 20 under the drive of the rotating member 20, the direction of the rotation axis of the rotating member 20 is taken as a first direction Z, and the magnetization direction of the magnet 30 is set along the first direction Z; the circuit board 40 is provided with a magnetic sensor 41, the magnetic sensor 41 being centrally disposed with respect to the rotational axis of the rotator 20, the magnetic sensor 41 being for detecting the revolution angle of the magnet 30.
The off-axis detection magnetic knob provided by the utility model has the beneficial effects that: compared with the prior art, the off-axis detection magnetic knob comprises the base 10, the rotating piece 20, the magnet 30 and the circuit board 40, wherein a user operates the rotating piece 20 to rotate so as to drive the magnet 30 to revolve around the rotation axis of the rotating piece 20, and the magnetic sensor 41 on the circuit board 40 detects the revolution angle of the magnet 30 so as to know the rotation angle of the rotating piece 20 to realize the knob function; the revolution of the magnet 30 placed off-axis is adopted to realize the detection of the rotation angle, and the volume of the magnet 30 can be made smaller, thereby being beneficial to reducing the cost and the weight of the magnetic knob.
Referring to fig. 4, the magnetic sensor 41 is centrally disposed with respect to the rotation axis of the rotator 20, the magnetization direction of the magnet 30 is disposed along the first direction Z (vertical direction), the magnetic field lines (magnetic field strength B) of the magnetic field generated by the magnet 30 have a horizontal component Bx passing through the magnetic sensor 41, the horizontal component Bx rotates with respect to the magnetic sensor 41 during the revolution of the magnet 30 around the rotation axis of the rotator 20, and the magnetic sensor 41 detects the angle of the horizontal component Bx to thereby know the rotation angle of the rotator 20 to realize the knob function. The magnet 30 may be solid cylindrical, may be made smaller and lighter, is thus less costly, and facilitates the operation of the magnetic knob.
The lifting bracket 50 can be lifted and lowered in the first direction Z relative to the base 10, and the circuit board 40 is mounted on the lifting bracket 50, that is, the circuit board 40 including the magnetic sensor 41 can be lifted and lowered.
The circuit board 40 is also provided with a button 42, the button 42 is positioned on one side of the circuit board 40 near the base 10, and the base 10 triggers the button 42 when the lifting bracket 50 descends with the circuit board 40. Thus, the user can operate to lower the elevating bracket 50 to realize the key function.
The elevating bracket 50 is rebound upward by the elastic force of the push button 42 itself. The conventional standardized button 42 has very good operation feeling, and the lifting bracket 50 is driven by the resilience of the button 42 to rebound and rise, so that the pressing feeling of the magnetic knob can be improved by using the operation feeling of the button 42.
The elevating bracket 50 has a movable passage 52 extending in the first direction Z, and the rotation axis of the rotation member 20 passes through the movable passage 52, and the base 10 has a jack post 11 inserted into the movable passage 52, the jack post 11 for triggering the button 42. When the lifting bracket 50 descends, the top post 11 directly or indirectly triggers the button 42 to realize the key function.
The soft rubber cap 70 is located in the movable channel 52 and between the jack post 11 and the button 42, the soft rubber cap 70 blocks the movable channel 52, the jack post 11 touches the button 42 through the soft rubber cap 70, and the soft rubber cap 70 is made of rubber. The flexible glue cap 70 blocks the movable channel 52, which is beneficial to preventing dust and impurities or water vapor below from rising into the circuit cavity through the movable channel 52 to pollute the circuit device. The soft rubber cap 70 can also buffer the impact of the top post 11 on the button 42, thereby protecting the button 42.
The display screen 80 is mounted on a screen seat 90, the screen seat 90 is connected with the lifting bracket 50 and forms a circuit cavity, and the circuit board 40 is positioned in the circuit cavity. The screen seat 90 and the lifting bracket 50 are surrounded to form a circuit cavity, so that circuit devices in the circuit cavity can be protected.
The rotating seat 60 can rotate relative to the base 10 and the lifting support 50, the rotating member 20 is fixedly connected with the rotating seat 60, the rotating member 20 is in a sleeve shape, the top of the rotating member 20 is provided with an inwardly extending eave portion 21, and the eave portion 21 and the rotating seat 60 form constraint on the screen seat 90 and the lifting support 50 along the first direction Z. The rotary member 20 is fixedly coupled to the rotary base 60 to form a rotatable member for operation by a user. The eave 21 of the rotator 20 and the rotator 60 form a constraint on the bezel 90 and the lifting bracket 50 in the first direction Z, i.e., the rotator 20 and the rotator 60 can be lifted and lowered along with the lifting bracket 50, such a configuration allows the off-axis detection magnetic knob of the present utility model to be understood as an integral pressing magnetic knob.
The lifting bracket 50 has a first connection portion 51 extending in the first direction Z, the first connection portion 51 is provided with a movable passage 52, the base 10 is provided with a second connection portion 12, the second connection portion 12 is sleeved on the radial outer side of the first connection portion 51, the rotating seat 60 is provided with an annular portion 61, the annular portion 61 is sleeved on the radial outer side of the second connection portion 12, and the magnet 30 is mounted on the radial outer side of the annular portion 61. Namely, the first connecting portion 51, the second connecting portion 12, the annular portion 61, and the magnet 30 are sequentially arranged from inside to outside, the magnet 30 may be disposed radially outside the annular portion 61, and other components may be disposed, for example, a ball plunger capable of forming a touch feeling of rotation of an operation knob may be disposed.
The utility model also provides an electric appliance, which comprises any off-axis detection magnetic knob, wherein the off-axis detection magnetic knob is arranged on an operation panel of the electric appliance and used for controlling the work of the electric appliance. The user can control the operation of the actuator of the appliance by detecting the magnetic knob off-axis. The appliance may be a kitchen appliance, such as a gas range, range hood or oven, but also other household appliances, such as a washing machine, water heater or electric fan, and also industrial equipment.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. An off-axis detection magnetic knob, comprising:
a base;
the rotating piece is rotatably arranged on the base;
the magnet is connected with the rotating piece and deviates from the rotating axis of the rotating piece, the magnet revolves around the rotating axis of the rotating piece under the drive of the rotating piece, the direction of the rotating axis of the rotating piece is taken as a first direction, and the magnetization direction of the magnet is set along the first direction;
the circuit board is provided with a magnetic sensor, the magnetic sensor is arranged in the middle of the rotation axis of the rotating piece, and the magnetic sensor is used for detecting the revolution angle of the magnet.
2. The off-axis detection magnet knob of claim 1, wherein:
the circuit board is mounted on the lifting support.
3. The off-axis detection magnet knob of claim 2, wherein:
the circuit board is also provided with a button, the button is positioned on one side of the circuit board, which is close to the base, and when the lifting support descends with the circuit board, the base triggers the button.
4. The off-axis sensing magnetic knob of claim 3 wherein:
the lifting support is driven by the resilience force of the button to rebound and rise.
5. The off-axis sensing magnetic knob of claim 3 wherein:
the lifting support is provided with a movable channel extending along a first direction, the rotation axis of the rotating piece passes through the movable channel, the base is provided with a jacking column inserted into the movable channel, and the jacking column is used for triggering the button.
6. The off-axis detection magnet knob according to claim 5, wherein:
still include the soft rubber cap, the soft rubber cap is located in the activity passageway and be in the spliced pole with between the button, the soft rubber cap jam the activity passageway, the spliced pole passes through the soft rubber cap touches the button, the soft rubber cap is made by rubber.
7. The off-axis detection magnet knob according to claim 5, wherein:
the display screen is installed in the screen seat, the screen seat is connected with the lifting support to form a circuit cavity, and the circuit board is located in the circuit cavity.
8. The off-axis detection magnet knob of claim 7, wherein:
still including rotating the seat, it can for to rotate the seat the base with lifting support rotates, rotate the piece with rotate seat fixed connection, it is the cover form to rotate the piece, the top of rotating the piece is equipped with the eaves portion that extends inwards, eaves portion with rotate the seat formation pair the screen seat with lifting support follows the constraint of first direction.
9. The off-axis detection magnet knob of claim 8, wherein:
the lifting support is provided with a first connecting portion extending along a first direction, the first connecting portion is provided with the movable channel, the base is provided with a second connecting portion, the second connecting portion is sleeved on the radial outer side of the first connecting portion, the rotating seat is provided with an annular portion, the annular portion is sleeved on the radial outer side of the second connecting portion, and the magnet is mounted on the radial outer side of the annular portion.
10. An electrical appliance, characterized in that:
the appliance includes an off-axis detection magnet knob according to any one of claims 1 to 9 mounted to an operation panel of the appliance and used for controlling the operation of the appliance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321139330.XU CN219936338U (en) | 2023-05-12 | 2023-05-12 | Off-axis detection magnetic knob and electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321139330.XU CN219936338U (en) | 2023-05-12 | 2023-05-12 | Off-axis detection magnetic knob and electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219936338U true CN219936338U (en) | 2023-10-31 |
Family
ID=88486301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321139330.XU Active CN219936338U (en) | 2023-05-12 | 2023-05-12 | Off-axis detection magnetic knob and electric appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219936338U (en) |
-
2023
- 2023-05-12 CN CN202321139330.XU patent/CN219936338U/en active Active
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