Vibration motor

Abstract

The present invention provides a vibration motor. [Solution] The vibration motor includes a housing having an accommodation space, and a vibrator assembly, a stator assembly, and an elastic member accommodated in the accommodation space, the stator assembly is fixed to the housing, the vibrator assembly is movably connected to the housing via the elastic member, and the vibrator assembly includes a holder assembly having both ends fixedly connected to the corresponding elastic members, the holder assembly includes a bobbin and an adhesive layer at least a part of which is coated on the outside of the bobbin, the vibrator assembly includes a coil fitted and fixed outside the adhesive layer, and the stator assembly is used to provide a driving force for the vibrator assembly to move along the vibration direction. In the vibration motor, the coil is fitted outside the holder assembly, and the holder assembly has a bobbin adhesive coating structure, which is not easily deformed during winding, has good uniformity of the coil's outer shape, and does not need to be wound in two layers, upper and lower, which is advantageous for improving the winding speed. At the same time, the coil is fitted and fixed outside the adhesive layer, and the coil does not come into contact with metal, so that the insulation performance is good and the risk of short circuit can be reduced.

Description

[Technical field]

[0001] The present invention relates to the technical field of electromagnetic motion, and in particular to vibration motors. [Background technology]

[0002] With the development of electronic technology, portable consumer electronic products are becoming more and more popular. For example, mobile phones, portable game consoles, navigation devices, portable multimedia entertainment devices, etc. generally use vibration motors to provide system feedback, such as incoming call notification, message notification, navigation guidance for mobile phones, and vibration feedback for game consoles.

[0003] In the prior art, a vibration motor generally includes a coil bobbin fixed to a housing, a coil wound around the coil bobbin, and a vibrator assembly disposed within the coil bobbin, so that the coil can be driven to vibrate the vibrator assembly. However, the coil bobbin is generally designed to be hollow in order to accommodate the vibrator assembly, and the coil bobbin is easily deformed during winding, making it difficult to control the coil shape, and the coil is wound around the coil bobbin in two layers, upper and lower, which is disadvantageous in increasing the coil winding speed.

[0004] Therefore, there is a need to provide a new vibration motor. Summary of the Invention [Problem to be solved by the invention]

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a vibration motor that overcomes the drawbacks of the prior art at least to some extent. [Means for solving the problem]

[0006] The technical solution of the present invention is as follows:

[0007] A vibration motor comprising: a housing having an accommodating space; a vibrator assembly, a stator assembly, and an elastic member accommodated within the accommodating space; the stator assembly is fixed to the housing; the vibrator assembly is movably connected to the housing via the elastic member; and the vibrator assembly comprises a holder assembly having both ends fixedly connected to corresponding elastic members, the holder assembly comprising a bobbin and an adhesive layer at least a portion of which is coated on the outside of the bobbin; the vibrator assembly comprises a coil fitted and fixed outside the adhesive layer; and the stator assembly is used to provide a driving force for moving the vibrator assembly along a vibration direction.

[0008] Preferably, the bobbin includes a main body portion and two support portions fixed to both ends of the main body portion, the support portions protruding from a peripheral surface of the main body portion, the adhesive layer covering the peripheral side of the main body portion, and the coil being provided between the two support portions.

[0009] Preferably, the adhesive layer also covers the outside of the support portion, and the adhesive layer extends along the vibration direction to form a fixing portion, and the fixing portion is fixedly connected to the elastic member.

[0010] Preferably, a first mounting hole is formed in the fixing part, and the vibration motor further includes a first rivet that penetrates the elastic member and is fixed to the first mounting hole, and / or a first screw hole is formed in the fixing part, and the vibration motor includes a first screw that penetrates the elastic member and is screwed into the first screw hole, and / or an avoidance hole is formed in the elastic member, and the vibration motor further includes a connecting protrusion having one end fixed to the fixing part and the other end passing through the avoidance hole, and the connecting protrusion and the elastic member are fixedly connected in a hot spot manner.

[0011] Preferably, the bobbin further includes a connection portion extending from the end of the main body portion along the vibration direction and protruding from the support portion, the connection portion being fixedly connected to the elastic member, and the adhesive layer also covering the circumferential side of the connection portion and the outside of the support portion.

[0012] Preferably, a second mounting hole is provided in the connection portion, and the vibration motor further includes a second rivet that passes through the elastic member and is fixed to the second mounting hole, and / or a second screw hole is provided in the connection portion, and the vibration motor further includes a second screw that passes through the elastic member and is screwed into the second screw hole, and / or the vibration motor further includes a first spot weld portion installed on a side of the elastic member away from the connection portion, and the connection portion and the elastic member are fixedly connected by being welded at the first spot weld portion.

[0013] Preferably, the bobbin further includes a column having one end fixed to the support and the other end fixed to the elastic member, and the adhesive layer is also applied to the circumferential side of the column and the outside of the support.

[0014] Preferably, a third mounting hole is formed in the column, and the vibration motor further includes a third rivet that passes through the elastic member and is fixed to the third mounting hole, and / or a third screw hole is formed in the column, and the vibration motor further includes a third screw that passes through the elastic member and is screwed into the third screw hole, and / or the vibration motor further includes a second spot weld provided on a side of the elastic member away from the column, and the column and the elastic member are fixedly connected by being welded at the second spot weld.

[0015] Preferably, the column and the support are fixed by welding or adhesive, a positioning groove is formed in the support, a positioning portion is fixed to the column, and the positioning portion is fitted into the positioning groove.

[0016] Preferably, the housing includes a case having a through cavity and two cover plates assembled to cover both ends of the case to form the accommodating space, the elastic member and the case are fixed in a hot spot manner, and both ends of the elastic member abut against the case and the cover plates, respectively.

[0017] Preferably, the adhesive layer extends toward the inner wall of the housing to form a contact portion, the vibration motor further includes a flexible circuit board having one end fixed to the side wall of the housing and the other end fixed to the contact portion, the flexible circuit board being electrically connected to the coil 7, the vibrator assembly further includes two mass blocks fitted and fixed to the outside of the adhesive layer and spaced apart from the coil, there is a gap between the mass blocks and the inner wall of the housing, the stator assembly includes a magnetic pole core fixed to the housing and a magnet steel fixed to the side of the magnetic pole core closer to the holder assembly, the magnet steel is located between the two mass blocks, and the magnet steel is used to provide a magnetic field. Effect of the Invention

[0018] The beneficial effects of the present invention are as follows:

[0019] After being energized, the coil cuts the magnetic induction line in the magnetic field generated by the stator assembly to generate an induced electromotive force, which generates an up-and-down reciprocating vibration in the holder assembly, realizing the vibration of the vibrator assembly and providing the vibration sensation of the motor. The coil is fitted outside the holder assembly, and the holder assembly has a bobbin adhesive coating structure, which is not easily deformed during winding, has good uniformity of the coil's outer shape, and does not need to be wound in two layers, which is advantageous for improving the winding speed. At the same time, the coil is fitted outside the adhesive layer and does not come into contact with metal, so the insulation performance is good and the risk of short circuit can be reduced. [Brief description of the drawings]

[0020] [Figure 1] FIG. 1 is an exploded view showing a vibration motor according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a top view showing a vibration motor according to an embodiment of the present invention. [Diagram 3] FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2, in which the bobbin is made up of a main body portion and a support portion, and the adhesive layer and the elastic member are fixed by caulking. [Figure 4] FIG. 4 is a cross-sectional view taken along the line AA in FIG. 2, in which the bobbin is made up of a main body portion and a support portion, and the adhesive layer and the elastic member are fixed with screws. [Diagram 5] FIG. 5 is a cross-sectional view taken along the line AA in FIG. 2, in which the bobbin is made up of a main body portion and a support portion, and an adhesive layer and an elastic member are fixed at hot spots. [Figure 6] FIG. 6 is an exploded view showing a vibrator assembly and an elastic member according to the first embodiment of the present invention. [Figure 7] FIG. 7 is a cross-sectional view taken along the line AA in FIG. 2, in which the bobbin is made up of a main body portion, a support portion, and a connection portion, and the connection portion and the elastic member are fixed by crimping. [Figure 8] FIG. 8 is a cross-sectional view taken along the line AA in FIG. 2, in which the bobbin is made up of a main body portion, a support portion, and a connection portion, and the connection portion and the elastic member are fixed with screws. [Figure 9] FIG. 9 is a cross-sectional view taken along the line AA in FIG. 2, in which the bobbin is made up of a main body portion, a support portion, and a connection portion, and the connection portion and the elastic member are fixed by welding. [Figure 10] FIG. 10 is an exploded view showing a vibrator assembly and an elastic member according to the second embodiment of the present invention. [Figure 11] FIG. 11 is a cross-sectional view taken along the line AA in FIG. 2, in which the bobbin is made up of a main body, a support, and a column, and the column and the elastic member are fixed by crimping. [Figure 12] FIG. 12 is a cross-sectional view taken along the line AA in FIG. 2, in which the bobbin is made up of a main body, a support, and a column, and the column and the elastic member are fixed with screws. [Figure 13]FIG. 13 is a cross-sectional view taken along the line AA in FIG. 2, in which the bobbin is made up of a main body, a support, and a column, and the column and the elastic member are fixed by welding. [Figure 14] FIG. 14 is an exploded view showing a transducer assembly and an elastic member according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] The present invention will be further described below in combination with drawings and embodiments.

[0022] As shown in Figures 1 to 14, an embodiment of the present invention provides a vibration motor, which includes a housing 1 having an accommodation space 11, a vibrator assembly, a stator assembly, and an elastic member 6 accommodated in the accommodation space 11, the stator assembly is fixed to the housing 1, the vibrator assembly is movably connected to the housing 1 via the elastic member 6, the vibrator assembly includes a holder assembly 2, both ends of which are fixedly connected to the corresponding elastic members 6, the holder assembly 2 includes a bobbin 21 and an adhesive layer 22, at least a part of which is coated on the outside of the bobbin 21, the vibrator assembly includes a coil 7 fitted and fixed outside the adhesive layer 21, and the stator assembly is used to provide a driving force for the vibrator assembly to move along the vibration direction. Note that, after being energized, the coil 7 cuts a magnetic induction line in the magnetic field generated by the stator assembly to generate an induced electromotive force, which generates a vertical reciprocating vibration in the holder assembly 2, thereby realizing the vibration of the vibrator assembly and providing a vibration sensation of the motor. The coil 7 is fitted outside the holder assembly 2, and the holder assembly 2 has a bobbin 21 adhesive coating structure, which is not easily deformed during winding, and the coil 7 has good uniformity in its outer shape, and there is no need to wind the coil in two layers, which is advantageous for improving the winding speed. At the same time, the coil 7 is fitted and fixed outside the adhesive layer 22, and the coil 7 does not come into contact with metal, so that the insulation performance is good and the risk of short circuiting can be reduced.

[0023] 1 to 14, the bobbin 21 further includes a main body portion 211 and two support portions 222 fixed to both ends of the main body portion 211, the support portions 222 protruding from the peripheral surface of the main body portion 211, the adhesive layer 22 covering the peripheral side of the main body portion 211, and the coil 7 provided between the two support portions 222. Specifically, the main body portion 211 may be a column, and the main body portion 211 and the two support portions 222 are connected in a shape similar to the letter U, which is advantageous for winding the coil 7 around the holder assembly 2, and the coil 7 provided between the two support portions 222 allows the support portions 222 to restrict the coil 7 from coming off the main body portion 211, and prevents the coil 7 from moving relative to the holder assembly 2 due to its own weight when the holder assembly 2 vibrates up and down.

[0024] As shown in Figs. 3 to 6, in the first embodiment of the present invention, the adhesive layer 22 also covers the outside of the support part 222, and the adhesive layer 22 extends along the vibration direction of the vibrator assembly to form the fixing part 221, and the fixing part 221 is fixedly connected to the elastic member 6. Specifically, the bobbin 21 is composed of only the body part 211 and the support part 222, and the adhesive layer 22 completely covers the outside of the bobbin 21 and is fixedly connected to the elastic member 6 through the fixing part 221, which can avoid the use of a large amount of metal material for the bobbin 21 and does not require surface treatment on the surface of the bobbin 21, thereby greatly reducing costs. Preferably, the fixing part 221 is provided with a plurality of positioning protrusions 223, and the elastic member 6 is provided with positioning through-holes aligned with the positioning protrusions 223, and the positioning protrusions 223 are fitted into the positioning through-holes of the elastic member 6, which can quickly position the holder assembly 2 and the elastic member 6, and then facilitate the fixing of the adhesive layer 22 to the elastic member 6. Here, the fixing method between the fixing part 221 and the elastic member 6 includes any of crimping, screwing, and hot spot fixing, i.e., the holder assembly 2 and the elastic member 6 can be fixedly connected by methods such as crimping, screwing, and hot spot fixing.

[0025] 3 to 6, a first mounting hole is formed in the fixing part 221. The vibration motor further includes a first rivet 10 which penetrates the elastic member 6 and is fixed to the first mounting hole, whereby the fixing part 221 and the elastic member 6 are crimped and fixed, that is, the first rivet 10 locks the adhesive layer 22 and the elastic member 6, and the holder assembly 2 and the elastic member 6 are fixedly connected.

[0026] As shown in FIG. 4, a first screw hole is provided in the fixing part 221, and the vibration motor includes a first screw 20 which penetrates the elastic member 6 and is screwed into the first screw hole, thereby screwing the fixing part 221 and the elastic member 6 together, that is, the first screw 20 can lock the adhesive layer 22 and the elastic member 6, and realize a fixed connection between the holder assembly 2 and the elastic member 6. In addition, a first washer 201 can be provided between the nut of the first screw 20 and the elastic member 6 to prevent the first screw 20 from pressing and damaging the elastic member 6.

[0027] 5, the elastic member 6 is provided with an escape hole, the vibration motor further includes a connecting protrusion 30, one end of which is fixed to the fixing part 221 and the other end of which passes through the escape hole, the connecting protrusion 30 and the elastic member are fixedly connected in a hot spot manner, and the hot spot fixing between the fixing part 221 and the elastic member 6 is specifically described as follows: after the connecting protrusion 30 passes through the escape hole of the elastic member 6, the end of the connecting protrusion 30 away from the fixing part 221 is heated and melted to cover the edge of the escape hole of the elastic member 6, so as to fix and connect the adhesive layer 22 and the elastic member 6, thereby realizing the fixed connection between the holder assembly 2 and the elastic member 6. According to actual needs, the fixing part 221 may be provided with several connecting protrusions 30, and the elastic member 6 may be provided with several escape holes.

[0028] 7 to 10, in the second embodiment of the present invention, the bobbin 21 further includes a connection portion 213 extending from an end of the body portion 211 along the vibration direction and protruding from the support portion 222, the connection portion 213 is fixedly connected to the elastic member 6, and the adhesive layer 22 also covers the circumferential side of the connection portion 213 and the outside of the support portion 222. Specifically, the bobbin 21 is composed of the body portion 211, the support portion 222, and the connection portion 213, and the body portion 211 and the connection portion 213 are integrally installed, which makes it easy to mold the bobbin 21 and is advantageous in improving the strength of the bobbin 21. Here, the fixing method between the connection portion 213 and the elastic member 6 includes any one of rivet fixing, screw fixing, and welding fixing, that is, the holder assembly 2 and the elastic member 6 can be fixedly connected by a method such as rivet fixing, screw fixing, or welding fixing.

[0029] As shown in FIG. 7, a second mounting hole is provided in the connection portion 213, and the vibration motor further includes a second rivet 40 which penetrates the elastic member 6 and is fixed to the second mounting hole, thereby crimping the connection portion 213 and the elastic member 6, i.e., the second rivet 40 locks the adhesive layer 22 and the elastic member 6, thereby realizing a fixed connection between the holder assembly 2 and the elastic member 6.

[0030] As shown in FIG. 8, a second screw hole is provided in the connection portion 213, and the vibration motor further includes a second screw 50 which penetrates the elastic member 6 and is screwed into the second screw hole, thereby screwing the connection portion 213 and the elastic member 6 together, i.e., the second screw 50 locks the connection portion 213 and the elastic member 6, thereby realizing a fixed connection between the holder assembly 2 and the elastic member 6. In addition, a second washer 501 can be provided between the nut of the second screw 50 and the elastic member 6 to prevent the second screw 50 from pressing and damaging the elastic member 6.

[0031] As shown in Figures 9 and 10, the vibration motor further includes a first spot welding part 60 installed on the side away from the connection part 213 of the elastic member 6, and the connection part 213 and the elastic member 6 are fixedly connected by welding at the first spot welding part 60. Specifically, after the connection part 213 and the elastic member 6 come into contact with each other, the connection part 213 and the elastic member 6 are fixed by welding at the first spot welding part 60 of the elastic member 6, thereby realizing a fixed connection between the holder assembly 2 and the elastic member 6.

[0032] As shown in FIGS. 11 to 14, in the third embodiment of the present invention, the bobbin 21 further includes a column 214, one end of which is fixed to the support portion 222 and the other end of which is fixed to the elastic member 6, and the adhesive layer 22 also covers the circumferential side of the column 214 and the outside of the support portion 222. Specifically, the bobbin 21 is composed of a main body portion 211, a support portion 222, and a column 214, the column 214 and the main body portion 211 have the same shape, the column 214 is made of a metal material, and the column 214 and the support portion 222 are fixed by welding. Preferably, a positioning groove is provided in the support portion 222, a positioning portion is provided in the column 214, and the positioning portion is aligned with the positioning groove, thereby realizing rapid positioning of the column 214 and the support portion 222 and improving assembly efficiency. According to actual needs, a positioning portion may be provided in the support portion 222, a positioning groove may be provided in the column 214, and the column 214 and the support portion 222 may be fixed by an adhesive. Here, the fixing method between the column 214 and the elastic member 6 includes any of crimping, screwing, and welding, i.e., the holder assembly 2 and the elastic member 6 can be fixedly connected by methods such as crimping, screwing, and welding.

[0033] As shown in FIG. 11, a third mounting hole is opened in the column 214, and the vibration motor further includes a third rivet 70 which penetrates the elastic member 6 and is fixed to the third mounting hole, thereby crimping the column 214 and the elastic member 6, that is, the third rivet 70 can lock the adhesive layer 22 and the elastic member 6, and realize a fixed connection between the holder assembly 2 and the elastic member 6.

[0034] As shown in Figures 12 and 14, a third screw hole is opened in the column 214, and the vibration motor further includes a third screw 80 which penetrates the elastic member 6 and is screwed into the third screw hole, thereby screwing the column 214 and the elastic member 6 together, that is, the third screw 80 can lock the column 214 and the elastic member 6 and realize a fixed connection between the holder assembly 2 and the elastic member 6. In addition, a third washer 801 can be provided between the nut of the third screw 80 and the elastic member 6 to prevent the third screw 80 from pressing and damaging the elastic member 6.

[0035] As shown in FIG. 13, the vibration motor further includes a second spot weld 90 provided on the side of the elastic member 6 away from the column 214, and the column 214 and the elastic member 6 are fixedly connected by welding at the second spot weld 90. Specifically, after the column 214 and the elastic member 6 come into contact with each other, the column 214 and the elastic member 6 are fixed by welding at the second spot weld 90 of the elastic member 6, thereby realizing a fixed connection between the holder assembly 2 and the elastic member 6.

[0036] As shown in Fig. 1, in one embodiment, the housing 1 includes a case 12 having a through cavity and two cover plates 13 assembled to cover both ends of the case 12 to form a receiving space 11, the elastic member 6 and the case 12 are fixed in a hot spot manner, and both ends of the elastic member 6 abut against the case 12 and the cover plate 13, respectively. Specifically, the elastic member 6 can be formed by providing several through grooves in an elastic sheet, the edges of the elastic member 6 are fixed to the case 12, and the holder assembly 2 is fixedly connected to the central area of ​​the elastic member 6, so that the elastic member 6 provides a restoring force for restoring the vibrator assembly and ensures that the vibrator assembly can vibrate up and down relative to the housing 1, the edges of the elastic member 6 are provided with several through holes, the ends of the case 12 are provided with several protrusions, and the protrusions of the case 12 are inserted into the through holes of the elastic member 6, thereby realizing the hot spot fixing between the elastic member 6 and the case 12. As can be understood, since both sides of the elastic member 6 abut against the case 12 and the cover plate 13 respectively, after the elastic member 6 and the case 12 are temporarily fixed by the hot spot fixing method, the elastic member 6 can also be pressed against the case 12 by the cover plate 13.

[0037] As shown in FIGS. 1-14, in one embodiment, the adhesive layer 22 extends toward the inner wall of the housing 1 to form a contact portion 222, and the vibration motor further includes a flexible circuit board 8, one end of which is fixed to the side wall of the housing 1 and the other end of which is fixed to the contact portion 222, and the flexible circuit board 8 is electrically connected to the coil 7. Specifically, the adhesive layer 22 coated on the outside of the support portion 222 extends toward the inner wall of the housing 1 to form the contact portion 222, and there is a gap between the contact portion 222 and the inner wall of the housing 1. The flexible circuit board 8 is fixed to the side of the contact portion 222 that is closer to the coil 7, thereby facilitating the connection between the coil 7 and the flexible circuit board 8. As can be seen, since the flexible circuit board 8 is fixed to the adhesive layer 22 and the flexible circuit board 8 has flexibility, the connection end of the flexible circuit board 8 and the adhesive layer 22 can vibrate following the holder assembly 2, and the connection between the coil 7 and the circuit board is prevented from being cut off due to the relative movement. The vibrator assembly further includes two mass blocks 3 fitted and fixed to the outside of the adhesive layer 22 and spaced apart from the coil 7, and there is a gap between the mass blocks 3 and the inner wall of the housing 1. Specifically, the mass blocks 3 are provided on the side of the support 222 away from the coil 7, and the mass blocks 3 are supported and fixed by the support 222, and the mass blocks 3 can vibrate following the holder assembly 2 to provide a vibration amount, thereby enhancing the vibration effect of the vibrator assembly. The stator assembly includes a pole core 4 fixed to the housing 1 and a magnet steel 5 fixed to the side of the pole core 4 close to the holder assembly 2, and the magnet steel 5 is located between the two mass blocks 3, and the magnet steel 5 is used to provide a magnetic field. Specifically, two stator assemblies are provided within the housing 1, the two stator assemblies are provided on either side of the coil 7, and the two stator assemblies are installed opposite each other, i.e., the two magnet steels 5 are provided on either side of the coil 7 and installed opposite each other, thereby ensuring that the magnet steels 5 can provide a magnetic field that is cut by the coil 7.As can be seen, the vibrator assembly is provided in the central region of the housing 1, and the stator assemblies are distributed on both sides of the vibrator assembly, which results in a dense component arrangement of the vibration motor and high space utilization.

[0038] The above is merely an embodiment of the present invention, and it should be noted here that those skilled in the art may make modifications without departing from the creative idea of ​​the present invention, and all such modifications are within the scope of protection of the present invention.

Claims

1. A vibration motor including a housing having an accommodation space, and a vibrator assembly, a stator assembly, and an elastic member accommodated in the accommodation space, the stator assembly being fixed to the housing, the vibrator assembly being movably connected to the housing via the elastic member, and the vibrator assembly including a holder assembly having both ends fixedly connected to the corresponding elastic members, the holder assembly includes a bobbin and an adhesive layer at least a portion of which is coated on the outside of the bobbin, the vibrator assembly includes a coil fitted and fixed on the outside of the adhesive layer, and the stator assembly is used to provide a driving force for moving the vibrator assembly along a vibration direction; the bobbin includes a main body and two support parts fixed to both ends of the main body, the support parts protruding from a peripheral surface of the main body, the adhesive layer covering the peripheral surface of the main body, and the coil being provided between the two support parts; The adhesive layer is also formed on the upper end surface and the lower end surface of the support portion. A vibration motor comprising:

2. The adhesive layers on the upper end surface and the lower end surface extend along the vibration direction and are formed as fixed portions, and the fixed portions formed by the adhesive layers are fixedly connected to the elastic member.

2. The vibration motor according to claim 1 .

3. The fixing portion has a first mounting hole, and the vibration motor further includes a first rivet that passes through the elastic member and is fixed to the first mounting hole, or The fixing portion has a first screw hole, and the vibration motor includes a first screw that passes through the elastic member and is screwed into the first screw hole, or the elastic member is provided with an avoidance hole, the vibration motor further includes a connection protrusion, one end of which is fixed to the fixing part and the other end of which passes through the avoidance hole, and the connection protrusion and the elastic member are fixedly connected in a hot spot manner; 3. The vibration motor according to claim 2.

4. The bobbin further includes a connection portion extending from an end of the main body portion along the vibration direction and protruding from the support portion, the connection portion being fixedly connected to the elastic member, and the adhesive layer is also applied to a peripheral side of the connection portion and the upper end surface and the lower end surface of the support portion.

2. The vibration motor according to claim 1 .

5. A second mounting hole is formed in the connection portion, and the vibration motor further includes a second rivet that passes through the elastic member and is fixed to the second mounting hole, or A second screw hole is formed in the connection portion, and the vibration motor further includes a second screw that passes through the elastic member and is screwed into the second screw hole, or The vibration motor further includes a first spot weld portion installed on a side of the elastic member away from the connection portion, and the connection portion and the elastic member are fixedly connected to each other by welding at the first spot weld portion.

5. The vibration motor according to claim 4.

6. the bobbin further includes a column having one end fixed to the support and the other end fixed to the elastic member, and the adhesive layer is also applied to a peripheral side of the column and to the upper end surface and the lower end surface of the support.

2. The vibration motor according to claim 1 .

7. The column has a third mounting hole, and the vibration motor further includes a third rivet that passes through the elastic member and is fixed to the third mounting hole, or The column has a third screw hole, and the vibration motor further includes a third screw that passes through the elastic member and is screwed into the third screw hole, or The vibration motor further includes a second spot weld provided on a side of the elastic member away from the column, and the column and the elastic member are fixedly connected by welding at the second spot weld.

7. The vibration motor according to claim 6.

8. The column and the support part are fixed by welding or adhesive, a positioning groove is formed in the support part, a positioning part is fixed to the column, and the positioning part is fitted into the positioning groove.

7. The vibration motor according to claim 6.

9. The housing includes a case having a through cavity and two cover plates assembled to cover both ends of the case to form the receiving space, the elastic member and the case are fixed in a hot spot manner, and both ends of the elastic member abut against the case and the cover plate, respectively.

2. The vibration motor according to claim 1 .

10. the adhesive layer extends toward an inner wall of the housing to form a contact portion, the vibration motor further includes a flexible circuit board having one end fixed to the side wall of the housing and the other end fixed to the contact portion, the flexible circuit board being electrically connected to the coil; The transducer assembly further includes two mass blocks fixed to the outside of the adhesive layer and spaced apart from the coil, and a gap is formed between the mass blocks and an inner wall of the housing. the stator assembly includes a pole core fixed to the housing, and a magnet steel fixed to a side of the pole core close to the holder assembly, the magnet steel being located between two of the mass blocks, the magnet steel being used to provide a magnetic field; 2. The vibration motor according to claim 1 .

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