Linear Hall knob

Abstract

The utility model provides a linear Hall knob which comprises a lower cover and an upper cover, and a knob assembly is arranged between the lower cover and the upper cover. The mainboard is arranged in the lower cover and the upper cover, and a linear Hall sensing IC is arranged on the mainboard; wherein the knob assembly comprises a knob key, a knob seat and a magnet module arranged at the tail end of the knob seat; the knob key is connected to the peripheral side of the knob seat, the magnet module is arranged on the axis of the knob seat, and a magnetic signal generated in the deflection process of the magnet module is sensed by the linear Hall sensing IC. The magnet module and the linear Hall induction IC provided by the utility model replace a traditional medium potential device, and the magnet module and the linear Hall induction IC do not directly contact with each other, so that the abrasion between the magnet module and the linear Hall induction IC is reduced, the operation hand feeling is improved, and meanwhile, the service life of potential adjusting equipment is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of knob switches, and in particular relates to a linear Hall knob. Background Art

[0002] With the continuous development of science and technology, model aircraft remote controllers and scooter controllers have become common in the market, but in the toy field, a large number of potentiometers are still used as control parts of model aircraft remote controllers and scooter controllers.

[0003] Currently, traditional potentiometer knobs are used in model aircraft remote controls and scooter controllers on the market. The potentiometer knobs mainly use mechanical contact to meet the potential process. There is a large friction force during the operation of the mechanical contact structure, which not only brings a poor hand feel experience, but also causes component loss due to the friction process, affecting the service life of the knob. Summary of the invention

[0004] The utility model provides a linear Hall knob, which aims to solve the problem that a large friction force exists during the operation of the mechanical contact structure of the current potentiometer knob, which not only brings a poor hand feeling experience but also causes component loss due to the friction process and affects the service life of the knob.

[0005] The utility model is implemented as follows: a linear Hall knob comprises:

[0006] A lower cover and an upper cover, wherein a knob assembly is provided between the lower cover and the upper cover;

[0007] A main board, which is disposed inside the lower cover and the upper cover, and is provided with a linear Hall sensor IC;

[0008] The knob assembly includes a knob key, a knob seat and a magnet module arranged at the end of the knob seat; the knob key is connected to the circumference of the knob seat, the magnet module is arranged on the axis of the knob seat, and the magnetic signal generated by the deflection process of the magnet module is sensed by the linear Hall sensing IC.

[0009] Preferably, the knob seat is provided with a rotating shaft, and the magnet module is assembled on the rotating shaft;

[0010] An assembly seat is provided on the circumference of the knob seat, a slot is provided under the knob key, the assembly seat is inserted into the slot of the knob key and connected by bolts, and when the knob key is deflected, the knob seat is driven to rotate around the rotation axis;

[0011] The end surface of the knob seat away from the rotating shaft is provided with a mounting shaft, and the lower cover is also provided with a knob bracket, and the mounting shaft is assembled on the knob bracket.

[0012] Preferably, the lower cover and the upper cover are provided with button openings, and the knob key extends from the button openings to the outside of the lower cover and the upper cover.

[0013] Preferably, the rotating shaft passes through the mounting hole on the mainboard and is connected to the magnet module, and the magnet module and the knob seat are respectively arranged on both sides of the mainboard.

[0014] Preferably, the linear Hall sensor IC1 and the magnet module are located on the same side, and the linear Hall sensor IC1 is located below the magnet module.

[0015] Preferably, the magnet module is a first magnet, and the first magnet is a ring magnet consisting of an N pole and an S pole.

[0016] Preferably, the first magnet is fixed to the circumference of the rotating shaft by screws.

[0017] Preferably, the magnet module comprises a magnet bracket and a sector-shaped magnet, the magnet bracket is provided with a sector-shaped groove adapted to the sector-shaped magnet, and the sector-shaped magnet is fixed in the sector-shaped groove.

[0018] Preferably, the magnet bracket is provided with an axial hole adapted to the rotating shaft, and the magnet bracket is fixed to the rotating shaft by screws.

[0019] Preferably, a torsion spring is provided on the circumferential side of the mounting shaft, and the torsion spring acts between the knob seat and the rotating bracket.

[0020] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0021] The linear Hall knob provided by the utility model replaces the traditional potential device through the magnetic module and the linear Hall sensing IC. There is no direct contact between the magnetic module and the linear Hall sensing IC, which reduces the wear between them, improves the operating feel and also increases the service life of the potential adjustment device. At the same time, the magnetic signal sensing is more sensitive than traditional mechanical parts and has a low delay rate, which is suitable for the operation needs in the field of remote control toys. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model is a schematic diagram of the structure of a linear Hall knob.

[0023] Figure 2 The utility model provides a linear Hall knob according to a specific embodiment of the present invention.

[0024] Figure 3 The utility model provides a linear Hall knob according to a specific embodiment of the present invention.

[0025] Figure 4 yes Figure 2 Disclosed is a structural schematic diagram of a magnet module in a specific embodiment of a linear Hall knob.

[0026] Figure 5 yes Figure 3 Disclosed is a structural schematic diagram of a magnet module in a specific embodiment of a linear Hall knob.

[0027] Figure 6 The utility model provides a schematic diagram of the conversion of magnetic force and voltage value of a linear Hall knob.

[0028] Description of reference numerals:

[0029] 110. Main board; 120. Button; 130. Linear Hall sensor IC; 210. Lower cover; 220. Upper cover; 310. Knob key; 320. Knob bracket; 330. Knob seat; 331. Rotating shaft; 332. Assembly seat; 333. Mounting shaft; 340. Torsion spring; 350. First magnet; 361. Magnet bracket; 362. Fan-shaped magnet; 400. Battery module. DETAILED DESCRIPTION

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0031] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] The utility model provides a linear Hall knob, such as Figure 1-Figure 6 As shown, the linear Hall knob comprises:

[0033] A lower cover 210 and an upper cover 220, wherein the lower cover 210 and the upper cover 220 are provided with a knob assembly;

[0034] A main board 110, wherein the main board 110 is disposed inside the lower cover 210 and the upper cover 220, and a linear Hall sensor IC 130 is disposed on the main board 110;

[0035] The knob assembly includes a knob key 310, a knob seat 330 and a magnet module arranged at the end of the knob seat 330; the knob key 310 is arranged on the periphery of the knob seat 330, and the magnet module is arranged on the axis of the knob seat 330. The magnetic signal generated by the deflection process of the magnet module is sensed by the linear Hall sensor IC130, specifically, the change of the magnetic signal is sensed, that is, the change of the magnetic signal is sensed.

[0036] In an embodiment, the lower cover 210 and the upper cover 220 are fixed by bolts, and an internal installation space is formed for arranging the mainboard 110 and the knob assembly, wherein the knob key 310 is nested and assembled on the side wall of the knob seat 330, and the magnet module is arranged in the axial direction of the knob seat 330. When the knob key 310 pushes the outer edge of the knob seat 330 to deflect, the knob seat 330 will drive the magnet module to deflect. When the magnet module deflects, the magnetic signal of the magnet module acting on the linear Hall sensor IC 130 will be changed;

[0037] The linear Hall effect IC 130 is made based on the Hall effect principle and is manufactured using integrated packaging and assembly processes. The internal integrated circuit converts the magnetic induction signal into an electrical signal output. When the magnetic force signal of the magnet module changes, the linear Hall effect IC 130 will capture the signal of the magnetic force change and convert it into an electrical signal output according to the magnetic force signal. The mainboard 110 connected to the linear Hall effect IC 130 will make corresponding adjustments according to the electrical signal output data.

[0038] In the present application, the magnet module and the linear Hall sensor IC130 replace the traditional medium potential device. There is no direct contact between the magnet module and the linear Hall sensor IC130, which reduces the wear between them and improves the service life of the potential adjustment device. At the same time, the magnetic signal induction has a higher sensitivity than the traditional mechanical parts and a lower delay rate, which is suitable for the operation needs in the field of remote control toys.

[0039] As a preferred implementation in this embodiment, the knob seat 330 is provided with a rotating shaft 331, an assembly seat 332 and a mounting shaft 333;

[0040] A slot is provided below the knob key 310, and the assembly seat 332 is inserted into the slot of the knob key 310 and connected by bolts. When the knob key 310 deflects, the knob seat 330 is driven to rotate around the rotation axis 331;

[0041] The magnet module is mounted on the rotating shaft 331;

[0042] The lower cover 210 is further provided with a knob bracket 320, and the mounting shaft 333 is assembled on the knob bracket 320;

[0043] In this embodiment, the lower cover 210 and the upper cover 220 are provided with a button opening, the knob key 310 extends from the button opening to the outside of the lower cover 210 and the upper cover 220, one end of the knob seat 330 is assembled on the knob bracket 320 by using a mounting shaft 333, and the end of the rotating shaft 331 away from the knob seat 330 is used to fix the magnet module, when the knob seat 330 rotates under the action of the knob key 310, the magnet module assembled at the end of the rotating shaft 331 will deflect synchronously;

[0044] The rotating shaft 331 passes through the mounting hole on the main board 110 and is connected to the magnet module. The magnet module and the knob seat 330 are respectively arranged on both sides of the main board 110, wherein the linear Hall sensor IC 130 and the magnet module are located on the same side, and the linear Hall sensor IC 130 is located below the magnet module;

[0045] As a preferred implementation in this embodiment, the magnet module is a first magnet 350 of a circular ring structure; the first magnet 350 is composed of an N pole and an S pole, wherein the magnetic directions of the N pole and the S pole on both sides of the circular ring structure are perpendicular or parallel to the sensing surface of the linear Hall sensing IC130, that is, the axis of the circular ring structure passing through the center of the circular ring is perpendicular or parallel to the sensing surface of the linear Hall sensing IC130, so as to better realize the induction of the magnetic field;

[0046] The rotating shaft 331 is provided with a screw hole, and the first magnet 350 is pressed on the peripheral side of the rotating shaft 331 by means of screws; when the first magnet 350 is deflected, the magnetic force of the N pole and the S pole relative to the linear Hall sensing IC 130 will change, and the magnetic force change signal will be converted into an electrical signal under the induction action of the linear Hall sensing IC 130 and transmitted;

[0047] As a preferred implementation in this embodiment, the magnet module includes a magnet bracket 361 and a fan-shaped magnet 362, the fan-shaped magnet 362 is provided with an N pole and an S pole, the magnet bracket 361 is fixed to the rotating shaft 331 by screws, and the fan-shaped magnet 362 is nested in the fan-shaped groove provided on the magnet bracket 361;

[0048] The rotating shaft 331 is provided with a screw hole, and the magnet bracket 361 is fixed to the rotating shaft 331 by screws. The fan-shaped magnet 362 will also change the magnetic signal on the linear Hall sensor IC 130 during the process of rotating the shaft 331, so that the linear Hall sensor IC 130 outputs an electric signal according to the magnetic signal.

[0049] As a preferred implementation in this embodiment, Figure 2-Figure 5As shown, a torsion spring 340 is provided on the periphery of the installation shaft 333, and an annular housing is also provided on the periphery of the installation shaft 333 for wrapping the torsion spring 340 and providing annular support to the torsion spring 340, and a notch is provided below the housing of the knob bracket 320 for assembling the installation shaft 333, and both ends of the torsion spring 340 are engaged with the notch, and the notch is responsible for limiting and locking both ends of the torsion spring 340, and the annular housing is used to wrap and limit the torsion spring 340 from the periphery of the torsion spring 340;

[0050] The knob bracket 320 is fixed on the lower cover 210 as a whole. The knob bracket 320 mainly provides a rotating shaft hole for the installation shaft 333. The installation shaft 333 is inserted into the shaft hole of the knob bracket 320. Under the deflection of external force, the installation shaft 333 rotates freely in the shaft hole. The notch is set below the shaft hole of the knob bracket 320 to limit the two end legs extending from the torsion spring 340 to generate a force. The torsion spring 340 itself is engaged with the installation shaft 333 and will rotate synchronously with the installation shaft 333. When the installation shaft 333 deflects, the torsion spring 340 will accumulate force with the deflection due to the engagement of the notch. When the external force disappears, the torsion spring 340 will push the installation shaft 333 to reset.

[0051] The torsion spring 340 acts between the knob seat 330 and the knob bracket 320. When the knob seat 330 and the knob bracket 320 are misaligned, the torsion spring 340 provides reverse support to complete the reset action.

[0052] In this embodiment, the torsion spring 340 is used to help the knob key 310 to reset. Figure 6 As shown, since the linear Hall sensor IC130 will transmit an electrical signal to the outside according to the maximum magnetic force change data generated by the magnet module, for example, after the maximum data of the magnetic force value on the S pole side is captured by the linear Hall sensor IC130, the linear Hall sensor IC130 will transmit an electrical signal to the outside according to the maximum data. The magnetic force value in the adjustment process is only used for setting and can be set not to be collected and transmit signals to the outside. This property is a prior art feature of the linear Hall sensor IC130; therefore, the setting of the reset function of the torsion spring 340 can not affect the transmission of magnetic force signals from the magnet module to the linear Hall sensor IC130;

[0053] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0054] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A linear Hall knob, characterized in that: include: A lower cover and an upper cover, wherein a knob assembly is provided between the lower cover and the upper cover; A main board, which is disposed inside the lower cover and the upper cover, and is provided with a linear Hall sensor IC; The knob assembly includes a knob key, a knob seat and a magnet module arranged at the end of the knob seat; the knob key is connected to the circumference of the knob seat, the magnet module is arranged on the axis of the knob seat, and the magnetic signal generated by the deflection process of the magnet module is sensed by the linear Hall sensing IC.

2. A linear Hall knob as claimed in claim 1, characterized in that: The knob seat is provided with a rotating shaft, and the magnet module is assembled on the rotating shaft; An assembly seat is provided on the circumference of the knob seat, a slot is provided under the knob key, the assembly seat is inserted into the slot of the knob key and connected by bolts, and when the knob key is deflected, the knob seat is driven to rotate around the rotation axis; The end surface of the knob seat away from the rotating shaft is provided with a mounting shaft, and the lower cover is also provided with a knob bracket, and the mounting shaft is assembled on the knob bracket.

3. A linear Hall knob as claimed in claim 2, characterized in that: The lower cover and the upper cover are provided with button openings, and the knob key extends from the button openings to the outside of the lower cover and the upper cover.

4. A linear Hall knob as claimed in claim 3, characterized in that: The rotating shaft passes through the mounting hole on the mainboard and is connected with the magnet module. The magnet module and the knob seat are respectively arranged on two sides of the mainboard.

5. A linear Hall knob as claimed in claim 4, characterized in that: The linear Hall sensor IC1 is located on the same side as the magnet module, and the linear Hall sensor IC1 is located below the magnet module.

6. A linear Hall knob as claimed in claim 5, characterized in that: The magnet module is a first magnet, and the first magnet is a ring magnet composed of an N pole and an S pole.

7. A linear Hall knob as claimed in claim 6, characterized in that: The first magnet is fixed to the peripheral side of the rotating shaft by screws.

8. A linear Hall knob as claimed in claim 7, characterized in that: The magnet module comprises a magnet support and a sector-shaped magnet. The magnet support is provided with a sector-shaped groove adapted to the sector-shaped magnet, and the sector-shaped magnet is fixed in the sector-shaped groove.

9. A linear Hall knob as claimed in claim 8, characterized in that: The magnet bracket is provided with an axial hole adapted to the rotating shaft, and the magnet bracket is fixed on the rotating shaft by screws.

10. The linear Hall knob according to claim 9, characterized in that: A torsion spring is arranged on the peripheral side of the installation shaft, and the torsion spring acts between the knob seat and the rotating bracket.

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