Magnetic suspension vibration motor and gamepad

Abstract

The utility model relates to a magnetic suspension vibration motor and a gamepad, and the magnetic suspension vibration motor comprises an electromagnetic assembly which comprises a long cylindrical coil holder with an inner cavity, and a coil winding which is wound on the coil holder around the axial direction of the coil holder; the vibrator assembly comprises two end magnetizers and a magnetic vibrator, and the two end magnetizers are fixed to the two axial ends of the coil holder in a one-to-one correspondence mode; the magnetic vibrator is suspended between the two end magnetizers, and the coil winding is used for being electrified to generate a magnetic field in the inner cavity and driving the magnetic vibrator to move in the inner cavity in a reciprocating mode. According to the magnetic suspension vibration motor provided by the utility model, the vibratable magneton is arranged in the coil holder wound with the coil winding, and the magneton is limited in the inner cavity of the coil holder through magnetic field repulsive force, so that the technical problem that the magneton is easy to overturn and collide is solved.

Description

Technical Field

[0001] The utility model relates to the field of vibration motors, in particular to a magnetic suspension vibration motor and a game handle. Background Art

[0002] A motor that only needs to provide vibration but does not need to output power or connect to other devices is used in mobile phones and game controllers. This can be achieved by installing an eccentric output shaft on an ordinary motor. Some are also achieved through a magnetic levitation motor. For example, application number 202311184849.4, named "A magnetic levitation vibration motor", is a better form of magnetic levitation vibration motor.

[0003] Through the positioning structure, the second cylinder in the above utility model application is allowed to slide in the accommodating cavity at intervals, and then the second magnetic field generated by the electromagnetic coil is used to drive the vibrator assembly to vibrate back and forth in the accommodating cavity of the shell in the axial direction, which to a certain extent solves the problem in the prior art that the offset of the vibrator during high-frequency vibration is difficult to control.

[0004] However, in the technical solution of the above utility model application, the magnet is suspended in the cylindrical kit under the action of the magnetic field generated by the kit. This is only a theoretical situation. In actual production applications, it is difficult to achieve complete uniformity of the cylindrical kit. Different thicknesses and uneven materials will lead to the inability of uniform magnetic field strength at various positions on the cylindrical kit. This will produce forces with different directions and sizes on the magnet or vibrator assembly therein, and it will still make it difficult for the vibrator assembly to maintain linear reciprocating vibration. The positioning structure can avoid collision and wear between the vibrator assembly and the inner wall of the accommodating cavity, but it is impossible to avoid collision and wear between the vibrator assembly and the positioning structure, which will ultimately affect the service life and vibration quality of the magnetic levitation vibration motor. Utility Model Content

[0005] Based on this, it is necessary to provide a magnetic levitation vibration motor and a game controller to address at least one of the problems mentioned above.

[0006] In a first aspect, the present application provides a magnetic levitation vibration motor, comprising:

[0007] The housing assembly comprises an outer cylinder having an accommodating cavity;

[0008] An electromagnetic assembly includes a long cylindrical bobbin having an inner cavity, and a coil winding wound on the bobbin in an axial direction around the bobbin;

[0009] The vibrator assembly includes two end magnets and a magnetic vibrator, the two end magnets are fixed one by one at the two axial ends of the wire frame; the magnetic vibrator is suspended between the two end magnets, and the coil winding is used to energize to generate a magnetic field in the inner cavity and drive the magnetic vibrator to reciprocate in the inner cavity.

[0010] In certain implementations of the first aspect, the housing assembly further includes an end cover and a base, the end cover and the base are respectively connected to two axial ends of the outer cylinder, and the end magnets are respectively disposed in the end cover and the base.

[0011] In combination with the first aspect and the above-mentioned implementations, in some implementations of the first aspect, a hollow portion is provided on the end cover or the base, and the end cover and the base are ultrasonically welded to the outer cylinder respectively.

[0012] In combination with the first aspect and the above-mentioned implementations, in some implementations of the first aspect, the wire rack includes a middle connecting ring and a plurality of support beams, the support beams are evenly distributed along the circumference of the inner wall of the connecting ring and extend in a direction parallel to the axial direction of the inner cavity, and the middle part of the support beam is connected to the connecting ring.

[0013] In combination with the first aspect and the above-mentioned implementation methods, in certain implementation methods of the first aspect, the coil winding includes a first coil winding and a second coil winding arranged along the axial direction of the wire frame, the connecting ring is provided with a gap, and the wire forming the first coil winding extends from one end of the gap to the other end, and is wound to form the second coil winding.

[0014] In combination with the first aspect and the above-mentioned implementations, in some implementations of the first aspect, the connecting ring and the supporting beam are integrally formed.

[0015] In combination with the first aspect and the above-mentioned implementations, in some implementations of the first aspect, the side circumferential surface of the support beam facing the magnetic vibrator is an arc surface.

[0016] In combination with the first aspect and the above-mentioned implementations, in some implementations of the first aspect, the support beam is a self-lubricating support beam.

[0017] In combination with the first aspect and the above-mentioned implementations, in some implementations of the first aspect, a plurality of limiting grooves corresponding one-to-one to the support beams are provided on the outer peripheral side surface of the magnetic vibrator, and the support beam protrudes into the limiting grooves.

[0018] In a second aspect, the present application provides a game controller, comprising a controller body and a magnetic levitation vibration motor as described in any one of the first aspects of the present application.

[0019] The technical solution provided in the embodiments of the present invention brings the following beneficial technical effects:

[0020] The magnetic levitation vibration motor provided by the utility model has a new vibration structure. A vibrating magnetic vibrator is arranged in a bobbin wound with a coil winding, and the magnetic vibrator is confined in the inner cavity of the bobbin by the magnetic field repulsion. This solves the technical problem that the magnetic field in the radial direction of the magnetic vibrator cannot be well uniformed, which makes it easy to flip and collide. The collision and wear between the vibrator and the surrounding limiting devices are further reduced. The utility model is easier to produce and manufacture, and the suspension vibration of the magnetic vibrator is realized, so that the vibration of the magnetic levitation vibration motor is more linear and smooth, and the operating feel of the game controller is improved.

[0021] Additional aspects and advantages of the present application will be given in subsequent parts and will be understood in detail from the subsequent description or learned through the specific implementation of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 An exploded view of a magnetic suspension vibration motor in one embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of an electromagnetic assembly in one embodiment of the utility model;

[0024] Figure 3 It is a three-dimensional structural schematic diagram of a vibrator assembly and a wire rack in one embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the wire rack in one embodiment of the utility model;

[0026] Figure 5 It is a schematic diagram of the assembly structure of the wire rack and the magnetic vibrator in another embodiment of the utility model.

[0027] Description of reference numerals:

[0028] 100-housing assembly, 200-electromagnetic assembly, 300-vibrator assembly;

[0029] 110-outer cylinder, 120-end cover, 130-base; 121-hollow portion, 131-bottom cover, 132-sleeve, 132a-accommodation groove;

[0030] 210- bobbin, 220- coil winding, 221- first coil winding, 222- second coil winding, 211- connecting ring, 212- supporting beam, 211a- notch;

[0031] 310-end magnet, 320-magnetic vibrator, 321-limiting groove. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the implementation of the utility model, not all implementations. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the utility model.

[0033] It should be understood that the schematic drawings are not necessarily drawn in real proportion. The flowchart used is an exemplary display of the implementation process of some embodiments of the utility model. It should be understood that the operations of the flowchart can be implemented out of order, and the steps without logical contextual relationships can be reversed in order or implemented simultaneously. In addition, those skilled in the art, under the guidance of the content of the utility model, can add one or more other operations to the flowchart, and can also remove one or more operations from the flowchart. If the application mentions mathematical concepts such as "parallel", "vertical" or "symmetrical", it should be understood as a situation that can be realized in engineering practice, rather than an absolute mathematical concept, and should be understood as having an acceptable engineering error.

[0034] The "embodiment" mentioned in this article means that the specific features, structures or characteristics described can be included in at least one implementation of the utility model. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it necessarily refer to independent or alternative embodiments that are mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0035] The embodiment of the first aspect of the present application provides a magnetic suspension vibration motor, such as Figure 1 As shown, the magnetic levitation vibration motor includes a shell assembly 100, an electromagnetic assembly 200 and a vibrator assembly 300. The vibrator assembly 300 is respectively arranged in the electromagnetic assembly 200 and the shell assembly 100, and the electromagnetic assembly 200 is arranged in the shell assembly 100. Specifically, the shell assembly 100 includes an outer cylinder 110 with a accommodating cavity, and the electromagnetic assembly 200 and other components are encapsulated in the accommodating cavity of the outer cylinder 110.

[0036] like Figure 1 and Figure 2 As shown, the electromagnetic assembly 200 includes a long cylindrical bobbin 210 having an inner cavity, and a coil winding axially wound around the bobbin 210. Other details of the electromagnetic assembly 200 will be described later in the form of a specific implementation.

[0037] like Figure 1 and Figure 3As shown, the vibrator assembly 300 includes two end magnets 310 and a magnetic vibrator 320. The two end magnets 310 are fixed one by one at the two axial ends of the bobbin 210. The magnetic vibrator 320 is suspended between the two end magnets 310. The coil winding is used to energize to generate a magnetic field in the inner cavity and drive the magnetic vibrator 320 to reciprocate in the inner cavity. The end magnets 310 are arranged at the two axial ends of the bobbin 210. The magnetic vibrator 320 is between the two end magnets 310. The two magnetic poles opposite to the end magnets 310 and the magnetic vibrator 320 are the same, so that the end magnets 310 and the magnetic vibrator 320 are mutually repelled, thereby suspending the magnetic vibrator 320 in the inner cavity of the bobbin 210. The coil winding is wound on the outer circumference of the bobbin 210. When the coil winding is energized to form an electromagnetic field, a force will be exerted on the magnetic vibrator therein. When the electromagnetic field is generated, the electromagnetic field will break the mechanical balance originally maintained only by the end magnetic vibrator and the magnetic vibrator, causing the magnetic vibrator to suddenly move to one side. The closer to the end magnetic vibrator, the greater the magnetic field force on the magnetic vibrator, and it will slow down, stop, and then return, forming a reciprocating movement until a new balance is reached, so that the magnetic vibrator 320 moves in the inner cavity. Combined with the gravity of the magnetic vibrator 320 itself and the repulsive force of the end magnetic vibrator 310, the final effect is that the magnetic vibrator 320 vibrates back and forth in the inner cavity, realizing the vibration output of the motor. When the current in the coil winding is controlled to be on and off for a certain period, the electromagnetic field can be changed between presence and absence. When the electromagnetic field exists, it drives the magnetic vibrator to move suddenly. When it reaches the position closest to the end magnet, the current is canceled, the electromagnetic field is canceled, and the force on the magnetic vibrator disappears, allowing the magnetic vibrator to reciprocate between the end magnets for a longer time until it reaches the original mechanical equilibrium state. In this implementation method, the magnetic levitation vibration motor can also achieve a certain energy-saving effect.

[0038] The magnetic levitation vibration motor provided by the utility model has a new vibration structure. By arranging a vibrating magnetic vibrator 320 in a bobbin 210 wound with a coil winding, the magnetic vibrator 320 is confined in the inner cavity of the bobbin 210 by the magnetic field repulsion, thereby solving the technical problem that the magnetic vibrator 320 is prone to flipping and colliding because the magnetic field in the radial direction cannot be well uniformed, further reducing the collision and wear between the vibrator and the surrounding limiting devices, and making it easier to achieve the suspension vibration of the magnetic vibrator 320, so that the vibration of the magnetic levitation vibration motor is more linear and smooth.

[0039] Optionally, in certain implementations of the first aspect of the present application, such as Figure 1As shown, the housing assembly 100 further includes an end cap 120 and a base 130, which are respectively connected to the axial ends of the outer cylinder 110, and the end magnet 310 is respectively arranged in the end cap 120 and the base 130. The two ends of the housing assembly 100 are split structures that can be assembled, which is convenient for placing the end magnet 310, and also convenient for installing the electromagnetic assembly 200 and the magnetic vibrator 320 in the accommodating cavity of the outer cylinder 110. The base 130 includes a bottom cover 131 and a sleeve 132, which can be integrally formed or fixedly connected together by ultrasonic welding. The sleeve 132 can accommodate the wire rack 210, and an installation groove is arranged on the inner wall of the sleeve 132, which can accommodate the wire rack 210 and prevent the wire rack 210 from rotating around the axis. The connecting wire is connected to the wire rack 210 through the electrode arranged on the bottom cover 131, that is, it is connected to the two ends of the coil winding 220 through two electrodes. A receiving groove 132 a for receiving the connecting ring 211 is provided in the middle portion of the sleeve 132 .

[0040] Further optionally, in combination with the embodiment of the first aspect and the above implementation, in other implementations of the embodiment of the first aspect, such as Figure 1 As shown, a hollow portion 121 is provided on the end cap 120 or the base 130, and the end cap 120 and the base 130 are ultrasonically welded to the outer cylinder 110 respectively. The hollow portion 121 is provided on the end cap 120 or the bottom cover 131, which can be a hole groove intentionally provided, or a gap formed between different parts on the end cap 120 or the base 130. Through the hollow portion 121, the accommodating cavity of the outer cylinder 110 is communicated with the outside, so as to avoid the magnetic vibrator 320 from compressing or stretching during movement to generate negative pressure or positive pressure, thereby hindering the movement of the magnetic vibrator 320. In order to realize the integration of the housing assembly 100, the end cap 120 can be connected to the outer cylinder 110 by welding, and the base 130 can be connected to the outer cylinder 110. A space for the circuit to enter is provided on the base 130, for example, electrodes are provided on the base 130 to facilitate wiring. In order to avoid additional interference to the designed magnetic fields of the electromagnetic assembly 200 and the vibrator assembly 300, the housing assembly 100 is made of non-ferromagnetic materials, usually plastic parts, so the housing assembly 100 can be assembled by ultrasonic welding.

[0041] Optionally, in combination with the embodiment of the first aspect and the above implementation, in other embodiments of the first aspect, such as Figure 1 and Figure 4As shown, the wire frame 210 includes a middle connecting ring 211 and a plurality of supporting beams 212. The supporting beams 212 are evenly distributed along the inner wall of the connecting ring 211 and extend in a direction parallel to the axial direction of the inner cavity. The middle of the supporting beams 212 is connected to the connecting ring 211. In order to simplify the wire frame 210 as much as possible, the wire frame 210 is designed to be surrounded by a plurality of supporting beams 212, and then connected by a connecting ring 211 to form a whole. The middle of each supporting beam 212 is connected to the connecting ring 211, which is equivalent to dividing the supporting beam 212 into two left and right or upper and lower parts of the same length, and each part is wound with a part of the coil winding. Optionally, in some specific implementations, the connecting ring 211 and the supporting beam 212 are integrally formed, and the integrally formed wire frame 210 has a more compact structure and greater strength.

[0042] Optionally, in combination with the embodiment of the first aspect and the above implementation, in some implementations of other embodiments of the first aspect, such as Figure 1 and Figure 2 As shown, the coil winding 220 includes a first coil winding 221 and a second coil winding 222 arranged along the axial direction of the bobbin, and the connecting ring 211 is provided with a notch 211a. The conductive wire forming the first coil winding 221 extends from one end of the notch 211a to the other end, and is wound to form the second coil winding 222. 221222 The first coil winding 221 and the second coil winding 222 are wound by the same conductive wire, and the transition position is the notch 211a set in the middle of the connecting ring 211. Through the notch 211a, the passing conductive wire can be buried in the bobbin 210 to avoid protruding and contacting the inner wall of the outer cylinder 110. The first coil winding 221 and the second coil winding 222 are formed by a wire. The winding direction of the first coil winding 221 is the same as that of the second coil winding 222, and the current direction is the same. The first coil winding 221 and the second coil winding 222 form two sections equivalent to the same electromagnet. The magnetic field strength in the middle part is the largest, and a larger unidirectional force can be generated, which drives the magnetic vibrator 320 in the middle faster and with greater force, and realizes the reciprocating oscillation of the magnetic vibrator 320 with the cooperation of the end magnet 310.

[0043] Of course, the first coil winding 221 and the second coil winding 222 can also be made independent of each other, and the first coil winding 221 and the second coil winding 222 can be respectively wound by two non-interfering wires. In this implementation mode, the winding directions of the first coil winding 221 and the second coil winding 222 can be the same or opposite, and the magnetic field directions of the first coil winding 221 and the second coil winding 222 can be specifically adjusted by adjusting the flow direction of the current, that is, the circuit structure in the magnetic levitation vibration motor, to ensure that the segmented electromagnetic fields generated in the two coil windings have a superimposed magnetic field force on the magnetic vibrator 320.

[0044] Optionally, in combination with the embodiment of the first aspect and the above implementation, in other implementations of another embodiment of the first aspect, such as Figure 4 As shown, the side surface of the support beam 212 facing the magnetic vibrator 320 is an arc surface. The side surface of the support beam 212 facing the magnetic vibrator 320 is a smooth arc surface, which can reduce the contact area with the magnetic vibrator 320 and reduce the friction between the two. At the same time, because it is an arc surface, it can also support the magnetic vibrator 320 well when the posture changes. Figure 5 As shown, a plurality of limiting grooves 321 corresponding to the support beam 212 are provided on the outer peripheral side of the magnetic vibrator 320, and the support beam 212 protrudes into the limiting grooves 321. The limiting grooves 321 can support the magnetic vibrator 320 to prevent the magnetic vibrator 320 from rotating around the axis, and can also make the magnetic vibrator 320 use the limiting grooves 321 as sliding grooves and reciprocate along the length direction of the limiting grooves 321. At the same time, through the matching relationship between the limiting grooves 321 and the magnetic vibrator 320, the flipping of the magnetic vibrator 320 can be avoided, making the oscillation of the magnetic vibrator 320 more controllable.

[0045] Furthermore, in combination with the embodiment of the first aspect and the above implementation, in some implementations of another embodiment of the first aspect, the support beam 212 is a self-lubricating support beam. In order to further reduce the resistance caused by the friction between the magnetic vibrator 320 and the support beam 212, the support beam 212 can be made of a self-lubricating material, that is, the support beam 212 is a self-lubricating support beam, for example, specifically made of POM (polyurethane) or PA (polyamide), etc., which is easy to shape, has good wear resistance, and has self-lubricating properties.

[0046] Based on the same technical concept, the embodiment of the second aspect of the present application provides a game controller, which includes a controller body and a magnetic levitation vibration motor as described in any one of the first aspects of the present application. The magnetic levitation vibration motor serves as a vibration source inside the controller body, and in combination with the circuit board in the game controller, vibrates as needed during the game.

[0047] The magnetic levitation vibration motor provided by the utility model has a new vibration structure. By arranging a vibrating magnetic vibrator in a wire frame wound with two sets of coil windings, the magnetic vibrator is confined in the inner cavity of the wire frame by the magnetic field repulsion, thereby solving the technical problem that the magnetic field in the radial direction of the magnetic vibrator cannot be well uniformed and is prone to flipping and collision, further reducing the collision and wear between the vibrator and the surrounding limiting devices, and being easier to produce and manufacture, realizing the suspension vibration of the magnetic vibrator, making the vibration of the magnetic levitation vibration motor more linear and smooth, and with a lower failure rate.

[0048] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be covered within the protection scope of the present invention.

Claims

1. A magnetic levitation vibration motor, characterized in that: include: The housing assembly comprises an outer cylinder having an accommodating cavity; An electromagnetic assembly includes a long cylindrical bobbin having an inner cavity, and a coil winding wound on the bobbin in an axial direction around the bobbin; The vibrator assembly includes two end magnets and a magnetic vibrator, the two end magnets are fixed one by one at the two axial ends of the wire frame; the magnetic vibrator is suspended between the two end magnets, and the coil winding is used to energize to generate a magnetic field in the inner cavity and drive the magnetic vibrator to reciprocate in the inner cavity.

2. The magnetic levitation vibration motor according to claim 1, characterized in that: The housing assembly further comprises an end cover and a base, wherein the end cover and the base are respectively connected to two axial ends of the outer cylinder, and the end magnets are respectively arranged in the end cover and the base.

3. The magnetic levitation vibration motor according to claim 2, characterized in that: A hollow portion is provided on the end cover or the base, and the end cover and the base are ultrasonically welded to the outer cylinder respectively.

4. The magnetic levitation vibration motor according to claim 1, characterized in that: The wire rack includes a middle connecting ring and a plurality of supporting beams, wherein the supporting beams are evenly distributed along the inner wall of the connecting ring and extend in a direction parallel to the axial direction of the inner cavity, and the middle part of the supporting beams is connected to the connecting ring.

5. The magnetic levitation vibration motor according to claim 4, characterized in that: The coil winding includes a first coil winding and a second coil winding arranged axially along the bobbin, the connecting ring is provided with a notch, the wire forming the first coil winding extends from one end of the notch to the other end and is wound to form the second coil winding.

6. The magnetic levitation vibration motor according to claim 4, characterized in that: The connecting ring and the supporting beam are formed integrally.

7. The magnetic levitation vibration motor according to claim 4, characterized in that: The side circumferential surface of the support beam facing the magnetic vibrator is an arc surface.

8. The magnetic levitation vibration motor according to claim 4, characterized in that: The support beam is a self-lubricating support beam.

9. The magnetic levitation vibration motor according to claim 4, characterized in that: A plurality of limiting grooves corresponding to the support beams are arranged on the outer peripheral side surface of the magnetic vibrator, and the support beams protrude into the limiting grooves.

10. A game handle, characterized in that: The invention comprises a handle body and a magnetic suspension vibration motor as described in any one of claims 1 to 9.

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