Electromagnetic vibrator, touch module and electronic product

Abstract

The utility model discloses an electromagnetic vibrator, a touch module and an electronic product. The electromagnetic vibrator comprises a shell assembly which comprises a first shell part and a second shell part, and the first shell part comprises a body and an elastic arm which is formed by bending the edge of the body and is connected to the second shell part; the magnetic rotor is positioned in the shell assembly and is mounted to the first shell part; a magnetic stator within the housing assembly and mounted to the second housing portion; the circuit board is fixed to the second shell part, one of the circuit board and the second shell part is located on the side, close to the first shell part, of the other one of the circuit board and the second shell part, the other one of the circuit board and the second shell part is provided with an avoiding part, and at least part of the magnetic stator is arranged in the avoiding part. The magnetic rotor can generate vibration relative to the magnetic stator under the action of a magnetic field of the magnetic stator through elastic deformation of the elastic arm. The electromagnetic vibrator is provided with the elastic arm and the avoiding part which are integrally bent, so that the cost is saved, and the ultrathin design of the electromagnetic vibrator is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of vibration devices, and more specifically, to an electromagnetic vibrator, a touch module and an electronic product. Background Art

[0002] The existing vibrator has a relatively complex structure, a large dimension in the thickness direction, high cost, many assembly steps, and poor tactile feedback effect. Utility Model Content

[0003] The present invention provides an electromagnetic vibrator, comprising:

[0004] The housing assembly comprises a first housing portion and a second housing portion, wherein the first housing portion comprises a body and an elastic arm formed by bending an edge of the body, and the second housing portion is connected to the elastic arm;

[0005] a magnetic mover, located within the housing assembly and mounted to the first housing portion;

[0006] a magnetic stator positioned within the housing assembly and mounted to the second housing portion; and

[0007] a circuit board fixed to the second housing portion, wherein one of the circuit board and the second housing portion is located on a side of the other that is farther from the first housing portion, and the one of the circuit board and the second housing portion that is closer to the first housing portion is provided with an escape portion, and at least a portion of the magnetic stator is disposed within the escape portion;

[0008] The magnetic mover is configured to generate vibration relative to the magnetic stator under the action of the magnetic field of the magnetic stator and through the elastic deformation of the elastic arm.

[0009] In some exemplary embodiments, the elastic arm includes an extension portion, a connecting portion and a fixing portion, the extension portion being configured to extend outward from the edge of the body of one of the first shell portion and the second shell portion, the connecting portion connecting the extension portion and the fixing portion, and the fixing portion being connected to the other of the first shell portion and the second shell portion.

[0010] In some exemplary embodiments, the extending portion, the connecting portion, and the fixing portion are connected in a Z-shape or a U-shape.

[0011] In some exemplary embodiments, a hollow portion is provided at a bent portion where the connecting portion and the fixing portion are connected.

[0012] In some exemplary embodiments, the circuit board is arranged outside the shell assembly and is located on the side of the second shell part away from the first shell part, and the avoidance portion is an avoidance through hole arranged in the middle part of the second shell part, so that the second shell part is formed into a U-shape.

[0013] In some exemplary embodiments, a thickness of the second housing portion is less than or equal to a thickness of the magnetic stator.

[0014] In some exemplary embodiments, the circuit board is disposed in the shell assembly and is located on a side of the second shell part close to the first shell part, the avoidance portion is disposed on one side of the circuit board, and the magnetic stator and the circuit board are arranged side by side in the thickness direction.

[0015] In some exemplary embodiments, one of the magnetic mover and the magnetic stator includes a coil group, and the other includes a magnet group, the coil group includes one or more electromagnetic coils and is electrically connected to the circuit board, and the magnet group includes one magnet or multiple magnets arranged in an array.

[0016] In some exemplary embodiments, the elastic arms are provided on opposite sides of the body; and / or

[0017] The electromagnetic vibrator includes a counterweight block, the counterweight block is mounted to the first housing portion, and the counterweight block is provided with a mounting groove, the magnetic mover is embedded in the mounting groove; and / or

[0018] The circuit board is a flexible circuit board.

[0019] The present application also provides a touch module, including:

[0020] touch panel; and

[0021] In the electromagnetic vibrator described in any of the aforementioned embodiments, the second shell portion of the electromagnetic vibrator is fixedly connected to the touch panel.

[0022] An embodiment of the present application further provides an electronic product, comprising the touch module described in the aforementioned embodiment.

[0023] The elastic arm of the embodiment of the present application is formed by the bending edge of the first shell part, and there is no need to set up an additional elastic vibration element, thereby saving material cost and assembly cost; by providing an avoidance portion in the circuit board or the second shell part, the circuit board or the second shell part can share space with the magnetic stator in the thickness direction without increasing the thickness dimension of the electromagnetic vibrator, which is conducive to achieving an ultra-thin design of the electromagnetic vibrator.

[0024] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0026] Figure 1 A schematic diagram of the three-dimensional structure of an electromagnetic vibrator according to an embodiment of the present application;

[0027] Figure 2 for Figure 1 A schematic cross-sectional structural diagram of an electromagnetic vibrator;

[0028] Figure 3 This is a schematic cross-sectional view of an electromagnetic vibrator according to another embodiment of the present application;

[0029] Figure 4 This is a schematic diagram of the three-dimensional structure of an electromagnetic vibrator according to another embodiment of the present application.

[0030] Reference numerals:

[0031] 100-Electromagnetic vibrator;

[0032] 1-shell assembly, 11-first shell part, 111-main body, 112-elastic arm, 1121-extension part, 1122-connecting part, 1123-fixing part, 1124, 1125-gap, 12-second shell part, 121-avoidance part; 2-coil group, 21, 22-electromagnetic coil; 3-magnet group, 31, 32, 33, 34-magnet; 4-counterweight block, 41-mounting slot; 5-circuit board. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other in any way.

[0034] The embodiment of the present application provides an electromagnetic vibrator 100, such as Figures 1 to 4As shown, it includes a housing assembly 1, a magnetic mover, a magnetic stator and a circuit board 5. The housing assembly 1 includes a first housing portion 11 and a second housing portion 12. The first housing portion 11 includes a body 111 and an elastic arm 112. The elastic arm 112 can be formed by bending the edge of the body 111. The second housing portion 12 is connected to the elastic arm 112. Therefore, the first housing portion 11 and the second housing portion 12 are reliably connected via the elastic arm 112. The body 111 and the second housing portion 12 of the first housing portion 11 are roughly rectangular. Of course, the body 111 and the second housing portion 12 of the first housing portion 11 can also be other shapes. The first housing portion 11 can be a sheet metal part. The elastic arm 112 is formed integrally by bending the edge of the first housing portion 11, which is easy to process and assemble and has low cost. The elastic arm 112 is made of a material that can produce elastic deformation and can quickly return to its original position, such as SUS301 stainless steel or other materials. It should be understood that the second housing portion 12 may also include a body 111 and an elastic arm 112 formed by bending an edge of the body 111 , and the first housing portion 11 is connected to the elastic arm 112 .

[0035] The magnetic mover is located within the housing assembly 1 and is mounted to the first housing portion 11. The magnetic stator is located within the housing assembly 1 and is mounted to the second housing portion 12. The magnetic mover and the magnetic stator are arranged to be opposite to each other and spaced a certain distance apart. The first housing portion 11 and the second housing portion 12 form an at least partially enclosed housing assembly 1 of the electromagnetic vibrator 100, thereby preventing the magnetic mover and the magnetic stator from being exposed to the outside and preventing damage to sensitive components such as the magnetic mover and the magnetic stator due to external impact.

[0036] The circuit board 5 is fixed to the second housing portion 12, and one of the circuit board 5 and the second housing portion 12 is located on a side of the other close to the first housing portion 11. Figures 1 to 3 In the embodiment, the second housing portion 12 is closer to the first housing portion 11 than the circuit board 5, and the second housing portion 12 is located on the inner side of the circuit board 5; and Figure 4 In the embodiment, the circuit board 5 is closer to the first housing portion 11 than the second housing portion 12, and the second housing portion 12 is located outside the circuit board 5. The one of the circuit board 5 and the second housing portion 12 closer to the first housing portion 11 is provided with an avoidance portion 121. Figures 1 to 3 In the embodiment, the second housing portion 12 is provided with an escape portion 121, and in Figure 4In the embodiment, the circuit board 5 is provided with an escape portion 121. At least a portion of the magnetic stator is disposed within the escape portion 121. The escape portion 121 may be a cavity disposed within the second housing portion 12 or the circuit board 5. Providing the escape portion 121 can prevent interference between the magnetic stator and other parts, thereby helping to optimize the relative position between the magnetic stator and the magnetic mover, thereby improving the efficiency and performance of the electromagnetic vibrator 100, and facilitating reduction of the overall size of the electromagnetic vibrator 100 in the thickness direction, thereby facilitating an ultra-thin design of the electromagnetic vibrator 100.

[0037] The magnetic mover is configured to vibrate relative to the magnetic stator under the influence of the magnetic stator's magnetic field and through the elastic deformation of the elastic arm 112. The magnetic mover reciprocates under the influence of the magnetic stator's magnetic field, causing the first housing portion 11 and the elastic arm 112 to deform. The elastic restoring force causes the elastic arm 112 to return to its original position, causing vibration.

[0038] To sum up, the elastic arm 112 of the embodiment of the present application is formed by bending the edge of the first shell part 11, and there is no need to set up an additional elastic vibration element, thereby saving material cost and assembly cost and reducing assembly steps; by providing an avoidance portion 121 in the second shell part 12 or the circuit board 5, the second shell part 12 or the circuit board 5 can share space with the magnetic stator in the thickness direction of the electromagnetic vibrator 100 without increasing the thickness direction of the electromagnetic vibrator 100, which is conducive to achieving an ultra-thin design of the electromagnetic vibrator 100.

[0039] In some exemplary embodiments, Figures 1 to 4As shown, the elastic arm 112 includes an extension portion 1121, a connection portion 1122, and a fixing portion 1123. The elastic arm 112 is the main deforming portion during vibration. The resonant frequency of the electromagnetic vibrator 100 can be adjusted by adjusting the parameters of the elastic arm 112. The direction parallel to the length of the first housing portion 11 and the front-to-back direction in the figure is set as the X direction, the direction parallel to the width of the first housing portion 11 and the left-to-right direction in the figure is set as the Y direction, and the direction parallel to the thickness of the first housing portion 11 and the up-down direction in the figure is set as the Z direction. The extension portion 1121 is configured to extend outward from the edge of the main body 111 of the first housing portion 11 (i.e., extend outward along the Y direction), so that a gap 1124 is formed between the connection portion 1122 and the main body 111 of the first housing portion 11. This prevents contact and friction between the connection portion 1122 and the main body 111 of the first housing portion 11, thereby affecting the elastic deformation of the elastic arm 112. Connecting portion 1122 connects extension portion 1121 and fixing portion 1123. A gap 1125 is formed between connecting portion 1122 and fixing portion 1123, thereby forming a slender, free-vibration portion. Fixing portion 1123 is connected to second housing portion 12. It should be understood that extension portion 1121 may also be configured to extend outward from the edge of body 111 of second housing portion 12, with fixing portion 1123 connected to first housing portion 11.

[0040] In some exemplary embodiments, Figures 1 to 4 As shown, the extension portion 1121, the connection portion 1122 and the fixing portion 1123 are connected in a Z-shape or a U-shape. The connection portion 1122 can be bent relative to the main body 111 of the first housing portion 11 (for example, bent downward along the Z direction), so that the connection portion 1122 forms an angle with the main body 111 of the first housing portion 11 (which can be perpendicular or non-perpendicular), so that the connection portion 1122 is approximately in a vertical direction. Figure 1-2 and Figure 4 As shown, the fixing portion 1123 can be bent relative to the connecting portion 1122 in a direction away from the main body 111 of the first housing portion 11 (for example, bent outward along the Y direction), or, as shown in FIG. Figure 3 As shown, the fixing portion 1123 can be bent relative to the connecting portion 1122 toward the direction close to the main body 111 of the first housing portion 11 (for example, bent inward along the Y direction), so that the fixing portion 1123 and the connecting portion 1122 form an angle (which can be perpendicular or non-perpendicular), so that the fixing portion 1123 is approximately in a horizontal direction. Therefore, the connection between the main body 111 (or the extension portion 1121) of the first housing portion 11, the connecting portion 1122 and the fixing portion 1123 can be Z-shaped ( Figure 1-2 and Figure 4 ) or U-shaped ( Figure 3This arrangement can simplify the molding of the elastic arm 112 and facilitate the fixation of the fixing portion 1123 to the second housing portion 12 .

[0041] In some exemplary embodiments, Figure 1 and Figure 4 As shown, the bent portion where the connecting portion 1122 and the fixing portion 1123 are connected is provided with a hollow portion. A gap 1125 is formed between the connecting portion 1122 and the fixing portion 1123, and this gap 1125 forms a slender hollow portion extending along the X-direction. In the X-direction, the width of the connecting portion 1122 is equal to the width of the fixing portion 1123, and the hollow portion is located in the middle of the bent portion where the connecting portion 1122 and the fixing portion 1123 are connected, with the two ends of the bent portion remaining connected. It should be understood that the hollow portion between the connecting portion 1122 and the fixing portion 1123 can also be in other forms, such as having other shapes or being located in other positions. In addition, in the X-direction, the width of the extension portion 1121 is smaller than the width of the connecting portion 1122, the extension portion 1121 is located in the middle, and gaps 1124 are formed at both ends of the extension portion 1121. In summary, the connecting portion 1122 becomes an elastic suspended portion and is the main deforming part of the elastic arm 112.

[0042] In some exemplary embodiments, Figures 1 to 3 As shown, the circuit board 5 is disposed outside the housing assembly 1 and is located on the side of the second housing portion 12 away from the first housing portion 11. The relief portion 121 of the second housing portion 12 is a relief through-hole provided in the middle portion of the second housing portion 12, thereby forming the second housing portion 12 in a U-shaped configuration. The U-shaped closed shape of the second housing portion 12 maintains good rigidity, serving to secure the elastic arm 112 and maintain structural stability. It should be understood that the relief portion 121 may also have other shapes or be provided in other locations.

[0043] In some exemplary embodiments, Figure 4 As shown, the circuit board 5 is arranged in the housing assembly 1 and is located on the side of the second housing part 12 close to the first housing part 11. The avoidance portion (not shown in the figure) is provided on one side of the circuit board 5, and the magnetic stator and the circuit board 5 are arranged side by side in the thickness direction. The avoidance portion here can be understood as the space next to the circuit board 5 for accommodating the magnetic stator. The circuit board 5 and the magnetic stator are not superimposed in the thickness direction of the electromagnetic vibrator 100 but are arranged side by side, which also achieves the effect of the circuit board 5 and the magnetic stator sharing space in the thickness direction, which is conducive to achieving an ultra-thin design of the electromagnetic vibrator 100.

[0044] In some exemplary embodiments, Figures 1 to 4As shown, one of the magnetic mover and the magnetic stator includes a coil group 2, and the other includes a magnet group 3. The coil group 2 includes one or more electromagnetic coils and is electrically connected to the circuit board 5. The magnet group 3 includes one magnet or multiple magnets arranged in an array. The magnetic stator may include the coil group 2, and the magnetic mover may include the magnet group 3. When the electromagnetic coil is energized, the electromagnetic coil generates an electromagnetic field, which interacts with the magnetic field generated by the magnets of the magnet group 3, causing the magnet group 3 to move relative to the coil group 2 and causing the elastic arm 112 to deform to produce a vibration effect. Changing the current signal of the coil group 2 can achieve vibration effects of different frequencies, thereby providing users with different tactile feedback experiences.

[0045] The magnet group 3 may include multiple ( Figure 1 and Figure 4 Four magnets 31, 32, 33, 34 are shown in FIG. 3 , and multiple magnets can be arranged in the X direction or the Y direction ( Figure 1 The coil group 2 includes a plurality of magnets arranged in a sequentially spaced manner along the X direction or the Y direction (in the figure), and the N poles of two adjacent magnets are in opposite directions, and the N poles of the plurality of magnets are directed toward or away from the main body 111 of the first housing portion 11 along the Z direction. Figure 1 and Figure 4 In the figure, multiple ( Figure 1 and Figure 4 Two electromagnetic coils 21, 22 are shown in FIG.

[0046] like Figure 1 and Figure 4 As shown, the four magnets 31, 32, 33, and 34 of the magnet group 3 have equal widths along the Y direction. One electromagnetic coil can be arranged opposite to two magnets. For example, the electromagnetic coil 21 can be opposite to the magnets 31 and 32, and the electromagnetic coil 22 can be opposite to the magnets 33 and 34. The N poles of two adjacent magnets are oriented in opposite directions, so that the two adjacent magnets can form closed magnetic lines of force. When the electromagnetic coil is energized, according to the left-hand rule, the magnet group 3 produces a displacement along the Y direction, and the electromagnetic vibrator 100 produces vibrations along the Y direction. If the entire electromagnetic vibrator 100 is rotated 90 degrees relative to the direction in the figure, the electromagnetic vibrator 100 produces vibrations along the X direction.

[0047] In some exemplary embodiments, Figures 1 to 4 As shown, the circuit board 5 is a flexible circuit board. The flexible circuit board 5 is electrically connected to the electromagnetic coil. The flexible circuit board is thin and bendable, which can effectively save space and improve space utilization. The second shell part 12 can be used as a rigid retainer of the magnetic stator, compensating for the deformation problem caused by the use of the flexible circuit board 5 and improving the reliability of the entire structure. The second shell part 12 is arranged above the flexible board ( Figure 1-Figure 3 ) or below ( Figure 4), the avoidance portion reserves space for the installation of the electromagnetic coil and the welding lead, so as to achieve the effect of sharing space with the electromagnetic coil in the thickness direction (Z direction) (such as Figure 2 as shown), and the thickness of the electromagnetic vibrator 100 is not increased.

[0048] In some exemplary embodiments, the thickness of the second housing portion 12 is less than or equal to the thickness of the magnetic stator. Figure 2 and Figure 3 Figure 1 shows a cross section of the electromagnetic vibrator 100. To ensure effective use of the magnetic field, the minimum gap in the thickness direction (Z direction) may be the magnetic gap d0 between the magnet and the coil, while also taking into account the avoidance of impact or friction during the vibration of the magnetic mover. d0 can be determined in combination with the cumulative tolerances of the components along the thickness direction (Z direction). Since a relief portion 121 is provided in the middle portion of the second shell portion 12, when the thickness d1 of the second shell portion 12 is less than or equal to the thickness d2 of the magnetic stator (electromagnetic coil), the setting of the magnetic gap d0 has almost no effect, nor does it affect the overall thickness of the electromagnetic vibrator 100.

[0049] In summary, the flexible circuit board, the coil assembly 2, and the second shell portion 12 are reliably connected to form the stator portion of the electromagnetic vibrator 100. The stator portion can be fixed to other components to be driven, such as a laptop touchpad, a mobile phone housing, and the like. By reinforcing the flexible circuit board with the second shell portion 12 and providing an escape portion with the second shell portion 12 or the flexible circuit board, the structural rigidity of the electromagnetic vibrator 100 is improved without increasing the thickness of the electromagnetic vibrator 100, and the purpose of reducing the thickness of the electromagnetic vibrator 100 is achieved, which is conducive to realizing an ultra-thin design of the electromagnetic vibrator 100.

[0050] In some exemplary embodiments, Figure 1 and Figure 4 As shown, elastic arms 112 are provided on opposite sides of the main body of the first housing portion 11. A plurality of elastic arms 112 can be symmetrically provided on the left and right sides of the main body 111.

[0051] In some exemplary embodiments, Figures 1 to 4 As shown, the electromagnetic vibrator 100 includes a counterweight 4, which is mounted to the main body 111 of the first shell part 11, and the counterweight 4 is provided with a mounting groove 41, and the magnetic mover is embedded in the mounting groove 41. A plurality of magnets are embedded in the plurality of mounting grooves 41 in a one-to-one correspondence, and the counterweight 4 and the magnets are mounted together to the main body 111 of the first shell part 11. The first shell part 11, the counterweight 4 and the magnet are reliably connected to form the mover part of the electromagnetic vibrator 100. The counterweight 4 acts as a load for the mover part and can improve the vibration effect.

[0052] An embodiment of the present application also provides a touch module, including a touch panel (for example, a touch panel of a laptop computer, a mobile phone, etc.) and an electromagnetic vibrator 100 according to any of the aforementioned embodiments, wherein the second shell portion 12 of the electromagnetic vibrator 100 is fixedly connected (for example, bonded) to the touch panel.

[0053] The present application also provides an electronic product including the touch module described in the above embodiment. The electronic product may be a laptop computer, a mobile phone, or the like.

[0054] In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", "'mouth'-shaped structure", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing "this" utility model and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0055] In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "connection," "direct connection," "indirect connection," "fixed connection," "installation," and "assembly" should be understood in a broad sense. For example, they may refer to a fixed connection, a detachable connection, or an integral connection. The terms "installation," "connection," and "fixed connection" may refer to a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0056] Although the embodiments disclosed in the present invention are as described above, the contents described are merely embodiments adopted to facilitate understanding of the present invention and are not intended to limit the present invention. Any person skilled in the art to which the present invention belongs may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the present invention. However, the scope of patent protection of the present invention shall still be defined by the attached claims.

Claims

1. An electromagnetic vibrator, characterized in that include: The housing assembly comprises a first housing portion and a second housing portion, wherein the first housing portion comprises a body and an elastic arm formed by bending an edge of the body, and the second housing portion is connected to the elastic arm; a magnetic mover, located within the housing assembly and mounted to the first housing portion; a magnetic stator positioned within the housing assembly and mounted to the second housing portion; and a circuit board fixed to the second housing portion, wherein one of the circuit board and the second housing portion is located on a side of the other closer to the first housing portion, the one of the circuit board and the second housing portion closer to the first housing portion being provided with an escape portion, and at least a portion of the magnetic stator being disposed within the escape portion; The magnetic mover is configured to generate vibration relative to the magnetic stator under the action of the magnetic field of the magnetic stator and through the elastic deformation of the elastic arm.

2. The electromagnetic vibrator according to claim 1, wherein The elastic arm includes an extension portion, a connecting portion and a fixing portion, the extension portion being configured to extend outward from the edge of the body of one of the first shell portion and the second shell portion, the connecting portion connecting the extension portion and the fixing portion, and the fixing portion being connected to the other of the first shell portion and the second shell portion.

3. The electromagnetic vibrator according to claim 2, characterized in that The extending portion, the connecting portion and the fixing portion are connected in a Z shape or a U shape.

4. The electromagnetic vibrator according to claim 3, characterized in that A hollow portion is provided at a bent portion where the connecting portion and the fixing portion are connected.

5. The electromagnetic vibrator according to any one of claims 1 to 4, characterized in that The circuit board is arranged outside the shell assembly and is located on the side of the second shell part away from the first shell part. The avoidance portion is an avoidance through hole arranged in the middle part of the second shell part, so that the second shell part is formed into a U-shape.

6. The electromagnetic vibrator according to claim 5, characterized in that The thickness of the second housing portion is less than or equal to the thickness of the magnetic stator.

7. The electromagnetic vibrator according to any one of claims 1 to 4, characterized in that The circuit board is arranged in the housing assembly and is located on a side of the second housing portion close to the first housing portion. The avoidance portion is arranged on one side of the circuit board, and the magnetic stator and the circuit board are arranged side by side in the thickness direction.

8. The electromagnetic vibrator according to any one of claims 1 to 4, characterized in that One of the magnetic mover and the magnetic stator includes a coil group, and the other includes a magnet group. The coil group includes one or more electromagnetic coils and is electrically connected to the circuit board. The magnet group includes one magnet or multiple magnets arranged in an array.

9. The electromagnetic vibrator according to any one of claims 1 to 4, characterized in that The elastic arms are provided on opposite sides of the body; and / or The electromagnetic vibrator includes a counterweight block, the counterweight block is mounted to the first housing portion, and the counterweight block is provided with a mounting groove, the magnetic mover is embedded in the mounting groove; and / or The circuit board is a flexible circuit board.

10. A touch module, characterized in that: include: Touch panel; and The electromagnetic vibrator according to any one of claims 1 to 9, wherein the second shell portion of the electromagnetic vibrator is fixedly connected to the touch panel.

11. An electronic product, characterized in that: Including the touch module according to claim 10.

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