Linear Hall key with feedback adjustment and assembly thereof

Abstract

The utility model discloses a linear Hall button with feedback regulation and an assembly thereof, the button comprises a keycap, an elastic member, a vibration unit, a magnet, a linear Hall sensor and a controller, the magnet and the vibration unit are arranged in a first accommodating cavity of the keycap, the keycap can drive the magnet to move up and down, and the linear Hall sensor is arranged in the first accommodating cavity. The vibration unit is arranged at the top of the magnet, the elastic piece is arranged at the bottom of the magnet, the linear Hall sensor is arranged at the bottom of the elastic piece, and the signal output end of the linear Hall sensor is connected with the signal input end of the controller. The signal output end of the controller is electrically connected with the control end of the vibration unit. According to the utility model, the pressing degree of the keycap can be sensed through the cooperation of the magnet and the linear Hall sensor, feedback adjustment during key pressing is realized through setting the trigger threshold value of the vibration unit, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of control buttons, and more specifically to a linear Hall button with feedback regulation and a component thereof. Background Art

[0002] In modern electronic devices, contactless interaction is gaining more and more attention due to its convenience and hygiene. Hall sensors are widely used in distance detection and position detection because they can detect changes in magnetic fields. According to the output data type classification, Hall sensors can be divided into linear Hall sensors with analog output and Hall switches with digital output. Among them, the output voltage of the linear Hall sensor will accurately track the changes in magnetic flux density. This feature can be used to detect and feedback the relative position of the magnet and the linear Hall sensor in real time. This detection solution has low implementation cost and high integration, and the detection accuracy mainly depends on the accuracy of the linear Hall sensor.

[0003] However, existing linear Hall buttons are insufficient in providing interactive feedback, especially the lack of tactile feedback, which makes it impossible for users to get clear confirmation of their operations, affecting the user experience. In addition, due to the lack of tactile prompts, users may press repeatedly, resulting in repeated misoperations.

[0004] Prior art CN116549960A discloses a game controller, which includes an outer shell, an infrared camera, a game button, a charging port, and a sound playback port are arranged on the outer shell, a button sensing unit is arranged at the bottom of the game button, a speaker is arranged at the bottom of the sound playback port, a piezoelectric actuator, a rechargeable battery assembly and a PCB board are arranged in the outer shell, and a wireless communication unit, a single-chip microcomputer and a heat sink are arranged on the PCB board. The game controller provided by the present invention uses a piezoelectric actuator to replace the traditional eccentric motor, which greatly shortens the delay time of tactile feedback and provides the vibration effect to the game user in time. At the same time, the game controller provided by the present invention distributes multiple piezoelectric actuators on the inner wall of the game controller or / and the PCB board to achieve a multi-point vibration effect, and generates vibrations at different points to achieve differentiated feedback of the game, thereby improving the user's experience during the game, but it cannot adjust the triggering of feedback according to the pressing depth. Utility Model Content

[0005] In order to solve the above problems, the utility model proposes a linear Hall button and game controller with feedback adjustment. The button sets the trigger condition of the vibration unit through the controller, and then outputs a driving signal through the linear Hall sensor and the magnet, so that the vibration unit vibrates when the pressing depth of the button reaches the set condition, thereby realizing feedback adjustment, increasing the user experience, and avoiding repeated pressing by the user.

[0006] To achieve the above-mentioned purpose, the technical solution provides a linear Hall key with feedback adjustment, comprising a keycap, an elastic member, a vibration unit, a magnet, a linear Hall sensor and a controller, wherein the magnet and the vibration unit are installed in a first accommodating cavity provided in the keycap, the keycap can drive the magnet to move up and down, the vibration unit is installed on the top of the magnet, the elastic member is installed on the bottom of the magnet, the linear Hall sensor is installed on the bottom of the elastic member, the signal output end of the linear Hall sensor is connected to the signal input end of the controller, and the signal output end of the controller is electrically connected to the control end of the vibration unit.

[0007] In the present technical solution, the keycap, the magnet, the elastic member and the linear Hall sensor are respectively located on a straight line. In order to make the structure of the key more compact, the keycap is provided with a first accommodating cavity, and the vibration unit is overlapped with the magnet and arranged in the first accommodating cavity. When the user presses the keycap, the keycap compresses the elastic member and drives the magnet to approach the linear Hall sensor. The magnetic field strength received by the linear Hall sensor increases, and the voltage output by the linear Hall sensor increases accordingly. The controller sets the voltage of the trigger threshold. When the voltage output by the linear Hall sensor reaches the threshold, the key is triggered. At the same time, the controller controls the vibration unit to vibrate, and informs the user that the key has been triggered through trigger feedback. The user can also adjust the pressing depth required for the key to trigger the vibration of the vibration unit by adjusting the threshold voltage. The user can also set the vibration time and vibration intensity of the vibration unit through the controller. When the user releases the keycap, the keycap pops up and resets under the tension of the elastic member, the magnet moves away from the linear Hall sensor, the magnetic field strength decreases, and the voltage output by the linear Hall sensor gradually decreases until it is lower than the threshold, and the key triggering ends.

[0008] As a preferred solution, the elastic member is a spring, and the spring can reset and pop out the keycap through its own tensioning force.

[0009] As a preferred solution, in order to provide users with good vibration feedback, the vibration unit is a button motor, the button motor is fixed in the first accommodating cavity, the button motor is electrically connected to the controller, and the button motor is small in size and suitable for use in a small space.

[0010] To achieve the above-mentioned purpose, a linear Hall button assembly of the present technical solution includes a shell and at least one of the above-mentioned linear Hall buttons with feedback adjustment installed on the shell, the shell is provided with a second accommodating cavity, the linear Hall button with feedback adjustment is installed on the second accommodating cavity provided in the shell, and the controller is installed at the bottom of the shell.

[0011] In this technical solution, when the user uses this component, the linear Hall sensor and the magnet cooperate to control the pressing depth. By setting different thresholds to correspond to different pressing depths, a variety of pressing strengths can bring different operating effects, which is different from the traditional buttons that only have triggering or not triggering scenarios. By setting the trigger threshold of the vibration unit in the button and adjusting the vibration trigger conditions of the vibration unit, there are many usage scenarios, which increases the user experience.

[0012] As a preferred embodiment, the upper end surface of the shell is provided with at least one sliding hole for the keycap to slide up and down, the keycap is slidably connected to the sliding hole, one end of the keycap protrudes from the shell through the sliding hole, and the sliding hole limits the keycap so that the keycap can slide straight up and down.

[0013] As a preferred solution, in order to prevent the linear Hall sensor and the elastic member from detaching, the bottom of the housing is further provided with at least one mounting hole for mounting the linear Hall sensor and the elastic member, and the linear Hall sensor and the elastic member are mounted on the mounting hole.

[0014] As a preferred solution, in order to make the structure of the key more compact, the key cap is provided with an opening connected to the first accommodating cavity at one end close to the linear Hall sensor, one end of the elastic member is placed in the first accommodating cavity, and the other end of the elastic member passes through the opening and is placed in the mounting hole.

[0015] As a preferred solution, a boss is provided on the end face of the controller, the bottom of the elastic member is connected to the end face of the boss, and the bottom of the mounting hole abuts against the boss. The boss can prevent the elastic member from interfering with the controller and increase the structural strength of the circuit board. The boss can withstand the impact pressure of the buttons and improve the service life of the handle.

[0016] As a preferred solution, in order to prevent the elastic member from squeezing the linear Hall sensor, the boss is an annular structure, and the linear Hall sensor is arranged inside the annular structure of the boss so that the end face of the linear Hall sensor is flush with the end face of the boss.

[0017] As a preferred solution, a limiting portion is provided on the lower end surface of the keycap, and the limiting portion is clamped on a positioning groove provided on the inner side of the sliding hole. When the keycap pops up and resets under the action of the elastic member, the limiting portion abuts against the positioning groove to play a limiting role, limiting the extreme position of the keycap popping out and preventing the keycap from falling off.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The utility model arranges a magnet in the first accommodating cavity. As the key cap is pressed, the magnet gradually approaches the linear Hall sensor. The magnetic field strength felt by the linear Hall sensor gradually increases and then outputs signals of different voltage strengths, thereby achieving the function of triggering different effects at different pressing depths.

[0020] 2. The signal output of contactless buttons can be realized through the cooperation of linear Hall sensors and magnets, which can reduce button wear and increase the service life of buttons.

[0021] 3. The linear Hall sensor and the vibration unit are electrically connected to the controller respectively. The triggering conditions, vibration time and vibration intensity of the vibration unit are adjusted by the controller. The linear Hall sensor cooperates with the magnet to transmit the driving signal to the controller to realize feedback adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a linear Hall switch with feedback adjustment of the utility model;

[0023] Figure 2 is a circuit connection diagram of the components in Example 1;

[0024] Figure 3 It is a schematic diagram of the structure of the linear Hall key assembly of the utility model;

[0025] Figure 4 It is an exploded schematic diagram of the linear Hall button assembly of the utility model.

[0026] In the figure: key cap 1; first accommodating cavity 11; limiting portion 12; elastic member 2; vibration unit 3; magnet 4; linear Hall sensor 5; controller 6; boss 61; housing 7; second accommodating cavity 71; sliding hole 72; mounting hole 73; positioning groove 74. DETAILED DESCRIPTION

[0027] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0030] Embodiment 1:

[0031] like Figures 1 to 4 As shown, this embodiment provides a linear Hall key with feedback regulation, including a keycap 1, an elastic member 2, a vibration unit 3, a magnet 4, a linear Hall sensor 5 and a controller 6, wherein the magnet 4 and the vibration unit 3 are installed in a first accommodating cavity 11 provided in the keycap 1, the keycap 1 can drive the magnet 4 to move up and down, the vibration unit 3 is installed on the top of the magnet 4, the elastic member 2 is installed on the bottom of the magnet 4, the linear Hall sensor 5 is installed on the bottom of the elastic member 2, the signal output end of the linear Hall sensor 5 is connected to the signal input end of the controller 6, and the signal output end of the controller 6 is electrically connected to the control end of the vibration unit 3.

[0032] In this embodiment, the button is a non-contact button. The linear Hall sensor 5 is based on the Hall effect, that is, when the magnet 4 is placed vertically in the magnetic field, a potential difference will be generated at both ends. The sensitivity of the Hall effect is proportional to the magnetic induction intensity of the external magnetic field. The linear Hall sensor 5 outputs an electrical signal proportional to the magnetic field intensity. When the magnet 4 is close to the linear Hall sensor 5, the magnetic field intensity increases, and when the magnet 4 is away from the linear Hall sensor 5, the magnetic field intensity decreases. Its working principle is to directly convert the magnitude of the magnetic field intensity into a linear voltage output, thereby realizing the process of converting the magnetic field intensity into an electrical signal. The controller 6 is responsible for amplifying, filtering, and other processing of the voltage signal output by the linear Hall sensor 5 to improve the quality and stability of the signal. The user can adjust the voltage threshold of the button trigger through the controller 6 to control the trigger condition and realize the function of different output results brought by different pressing depths. At the same time, the voltage threshold of the vibration unit 3 is set by the controller 6, so that the user can control the vibration unit 3 to vibrate when the button is pressed to a certain depth, and can also adjust the vibration intensity of the vibration unit 3 to realize feedback regulation.

[0033] Specifically, the magnet 4 is fixed on an end surface of the vibration unit 3 close to the linear Hall sensor 5 .

[0034] In this embodiment, the magnet 4 is disposed at a position that can effectively avoid the influence of the vibration unit 3 on the magnetic field of the magnet 4 , thereby improving the accuracy of the linear Hall sensor 5 in receiving the magnetic field strength signal.

[0035] Specifically, the vibration unit 3 is a button motor, which is fixed in the first accommodating cavity 11 , and is electrically connected to the controller 6 .

[0036] In this embodiment, the button motor is composed of a motor body, a spring, a drive circuit, a shell and other parts, wherein the motor body includes a vibration motor and a support structure for providing a vibration signal; the spring is used to fix the motor body to prevent it from wandering during vibration; the drive circuit is responsible for providing power to the vibration motor, thereby controlling its vibration frequency and intensity; the shell is used to protect the vibration motor and the drive circuit and provide fixation. The button motor is small in size and is very suitable for tactile feedback of miniaturized smart devices. The height of the key cap 1 is less than the height of the elastic member 2.

[0037] In this embodiment, when the elastic member 2 is in a non-compressed state, one section of the elastic member 2 penetrates into the first accommodating cavity 11 , and another section of the elastic member 2 is placed outside the keycap 1 to ensure that the keycap 1 has sufficient pressing depth.

[0038] Embodiment 2:

[0039] like Figure 3 , 4 As shown, this embodiment provides a linear Hall button assembly, including a shell 7 and at least four linear Hall buttons with feedback adjustment described in Example 1 installed on the shell 7, the shell 7 is provided with a second accommodating cavity 71, the linear Hall buttons with feedback adjustment are installed on the second accommodating cavity 71 provided in the shell 7, and the controller 6 is installed at the bottom of the shell 7.

[0040] In this embodiment, the upper end surface of the housing 7 is provided with four sliding holes 72 for the key cap 1 to slide up and down, and the key cap 1 is slidably connected to the sliding holes 72 .

[0041] In this embodiment, the component is a game controller, and the shell 7 is the shell of the game controller. The linear Hall button with feedback adjustment can realize feedback adjustment of the controller button, thereby improving the user experience.

[0042] Embodiment 3:

[0043] This embodiment is similar to Embodiment 2, except that, in this embodiment, the bottom of the housing 7 is further provided with at least one mounting hole 73 for mounting the linear Hall sensor 5 and the elastic member 2 , and the linear Hall sensor 5 and the elastic member 2 are mounted on the mounting hole 73 .

[0044] In this embodiment, a boss 61 is provided on the end face of the controller 6, and the boss 61 is an annular structure. The linear Hall sensor 5 is arranged inside the annular structure of the boss 61 so that the end face of the linear Hall sensor 5 is flush with the end face of the boss 61, the bottom of the elastic member 2 is connected to the end face of the boss 61, and the bottom of the mounting hole 73 is in contact with the boss 61.

[0045] In this embodiment, the elastic member 2 is a spring, and the mounting hole 73 can limit the elastic member 2 so that the elastic member 2 can perform upward and downward telescopic movements in the mounting hole 73. The boss 61 plays an isolating role, separating the elastic member 2 from the controller 6 to avoid interference.

[0046] Specifically, a limiting portion 12 is disposed on the lower end surface of the key cap 1 , and the limiting portion 12 is clamped on a positioning groove 74 disposed on the inner side of the sliding hole 72 .

[0047] In this embodiment, the four limiting portions 12 are respectively disposed in the annular structure at the bottom of the key cap 1 , and the four limiting portions 12 are arranged at equal intervals to prevent the key cap 1 from slipping out of the sliding hole 72 .

[0048] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0049] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A linear Hall switch with feedback adjustment, characterized in that: The invention comprises a key cap (1), an elastic member (2), a vibration unit (3), a magnet (4), a linear Hall sensor (5) and a controller (6), wherein the magnet (4) and the vibration unit (3) are arranged in a first accommodating cavity (11) (11) arranged in the key cap (1), the key cap (1) can drive the magnet (4) to move up and down, the vibration unit (3) is arranged on the top of the magnet (4), the elastic member (2) is arranged on the bottom of the magnet (4), the linear Hall sensor (5) is arranged on the bottom of the elastic member (2), the signal output end of the linear Hall sensor (5) is connected to the signal input end of the controller (6), and the signal output end of the controller (6) is electrically connected to the control end of the vibration unit (3).

2. A linear Hall switch with feedback adjustment according to claim 1, characterized in that: The elastic member (2) is a spring.

3. A linear Hall switch with feedback adjustment according to claim 1, characterized in that: The vibration unit (3) is a button motor, which is fixed in the first accommodating cavity (11) and is electrically connected to the controller (6).

4. A linear Hall button assembly, characterized in that: The invention comprises a housing (7) and at least one linear Hall button with feedback adjustment according to any one of claims 1 to 3 mounted on the housing (7); the housing (7) is provided with a second accommodating cavity (71); the linear Hall button with feedback adjustment is mounted on the second accommodating cavity (71) provided on the housing (7); and the controller (6) is mounted on the bottom of the housing (7).

5. A linear Hall button assembly according to claim 4, characterized in that: The upper end surface of the housing (7) is provided with at least one sliding hole (72) for the key cap (1) to slide up and down.

6. A linear Hall button assembly according to claim 4, characterized in that: The bottom of the housing (7) is also provided with at least one mounting hole (73) for mounting the linear Hall sensor (5) and the elastic member (2); the linear Hall sensor (5) and the elastic member (2) are mounted on the mounting hole (73).

7. A linear Hall button assembly according to claim 6, characterized in that: An end of the key cap (1) close to the linear Hall sensor (5) is provided with an opening (13) connected to the first accommodating cavity (11); one end of the elastic member (2) is placed in the first accommodating cavity (11); and the other end of the elastic member (2) passes through the opening (13) and is placed in the mounting hole (73).

8. A linear Hall button assembly according to claim 6, characterized in that: The end surface of the controller (6) is provided with a boss (61), the bottom of the elastic member (2) is connected to the end surface of the boss (61), and the bottom of the mounting hole (73) abuts against the boss (61).

9. A linear Hall button assembly according to claim 8, characterized in that: The boss (61) is an annular structure, and the linear Hall sensor (5) is arranged inside the annular structure of the boss (61) so that the end surface of the linear Hall sensor (5) is flush with the end surface of the boss (61).

10. The linear Hall button assembly according to claim 5, characterized in that: The lower end surface of the key cap (1) is provided with a limiting portion (12), and the limiting portion (12) is clamped on a positioning groove (74) provided on the inner side of the sliding hole (72).

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