Composite vibration motor and electric toothbrush

Abstract

The utility model relates to the technical field of electric toothbrushes, and discloses a composite vibration motor and an electric toothbrush, and the composite vibration motor comprises a housing, the inner wall of which is enclosed to form a mounting cavity; the shaft bracket is movably arranged in the mounting cavity, and the shaft bracket is suitable for driving the shaft body to move; a first magnet and a second magnet are arranged on the shaft bracket; the first electromagnet and the first magnet are oppositely arranged in the first direction X, and the first electromagnet is suitable for being in magnetic interaction with the first magnet in a power-on state so as to drive the shaft support to reciprocate in the first direction X; and the second electromagnet and the second magnet are oppositely arranged in the second direction Y, and the second electromagnet is suitable for being in magnetic interaction with the second magnet in the power-on state so as to drive the shaft support to reciprocate in the second direction Y. The composite vibration motor provided by the utility model can realize the switching of the electric toothbrush among a transverse tooth brushing mode, a longitudinal tooth brushing mode and a composite tooth brushing mode, and is simpler in structure and lower in noise.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric toothbrush technical field, concretely relates to a compound vibration motor and electric toothbrush. BACKGROUND

[0002] Electric toothbrush passes through the quick rotation or vibration of motor, makes the brush head produce high frequency vibration, to realize the cleaning to oral cavity. The existing electric toothbrush can only carry out single direction's vibration, cannot satisfy the demand of the switching of horizontal toothbrushing and vertical toothbrushing anytime. SUMMARY

[0003] Therefore, the utility model provides a compound vibration motor and electric toothbrush to solve the problem that the existing electric toothbrush can only carry out single direction's vibration and cannot satisfy the demand of the switching of horizontal toothbrushing and vertical toothbrushing anytime.

[0004] In a first aspect, the utility model provides a compound vibration motor, which comprises:

[0005] A shell, the inner wall of which is enclosed to form a mounting cavity;

[0006] A shaft support movably arranged in the mounting cavity, the shaft support is adapted to be fixedly connected with the shaft body, and the shaft support is adapted to drive the shaft body to move;

[0007] A first magnet and a second magnet are arranged on the shaft support;

[0008] A first electromagnet is oppositely arranged with the first magnet along a first direction X, the first electromagnet is adapted to magnetically interact with the first magnet in the state of being electrified, and the first electromagnet and the first magnet are adapted to drive the shaft support to reciprocate along the first direction X;

[0009] A second electromagnet is oppositely arranged with the second magnet along a second direction Y, the second electromagnet is adapted to magnetically interact with the second magnet in the state of being electrified, and the second electromagnet and the second magnet are adapted to drive the shaft support to reciprocate along the second direction Y.

[0010] Beneficial effects: the utility model provides a compound vibration motor, through setting up first magnet on the axle support, and make first electromagnet with first magnet opposite setting along first direction X, first electromagnet generates alternating field under the electrified condition, to make first electromagnet attract or repel first magnet, to drive axle support drive axle body reciprocating movement along first direction X, further realize the transverse tooth brushing mode of electric toothbrush, through setting up second magnet on the axle support, and make second electromagnet with second magnet opposite setting along second direction Y, second electromagnet generates alternating field under the electrified condition, to make second electromagnet attract or repel second magnet, to drive axle support drive axle body reciprocating movement along second direction Y, further realize the longitudinal mode of electric toothbrush, when first electromagnet and second electromagnet are under the electrified condition simultaneously, axle support drive axle body moves along first direction X simultaneously along second direction Y, to realize the compound tooth brushing mode of electric toothbrush, through external ac power supply to at least one of first electromagnet and second electromagnet power supply, to realize the switching of electric toothbrush between transverse tooth brushing mode, longitudinal tooth brushing mode and compound tooth brushing mode, in addition, compared with the rotor motor in the related art, the utility model provides compound vibration motor structure is simpler, and the noise is lower.

[0011] In an alternative embodiment, the first electromagnet includes a first silicon steel sheet and a first coil, the first silicon steel sheet is opposite to the first magnet along the first direction X, and the first coil is wound on the outer side wall of the first silicon steel sheet.

[0012] The second electromagnet includes a second silicon steel sheet and a second coil, the second silicon steel sheet is opposite to the second magnet along the second direction Y, and the second coil is wound on the outer side wall of the second silicon steel sheet.

[0013] The first coil and the second coil are adapted to be electrically connected with an external power source.

[0014] Beneficial effects: when the first coil is connected to ac power, the first electromagnet generates an alternating magnetic field and attracts or repels the first magnet, thereby driving the axle support to drive the shaft body reciprocating movement along the first direction X; when the second coil is connected to ac power, the second electromagnet generates an alternating magnetic field and attracts or repels the second magnet, thereby driving the axle support to drive the shaft body reciprocating movement along the second direction Y; when the first coil and the second coil are connected to ac power at the same time, the axle support drives the shaft body to move simultaneously along the first direction X and the second direction Y, thereby realizing the switching of the electric toothbrush between the transverse tooth brushing mode, the longitudinal tooth brushing mode and the compound tooth brushing mode.

[0015] In an alternative embodiment, the first silicon steel sheet has a first bending portion and a second bending portion connected to each other, one end of the first bending portion is arranged opposite to the first magnet along the first direction X, and the other end extends along the second direction Y to form the second bending portion, and the first bending portion and the second bending portion are both wound with the first coil;

[0016] The second silicon steel sheet has a third bending portion and a fourth bending portion connected to each other, one end of the third bending portion is arranged opposite to the second magnet along the second direction Y, and the other end extends along the first direction X to form the fourth bending portion, and the third bending portion and the fourth bending portion are both wound with the second coil.

[0017] Beneficial effects: The first silicon steel sheet and the second silicon steel sheet can both wind more coils in the limited accommodation space of the shell, ensuring sufficient force of the electromagnetic field, and fully utilizing the internal space of the shell.

[0018] In an alternative embodiment, the mounting cavity is provided with a first rib, the first rib is arranged apart from at least part of the inner side wall of the shell along the first direction X and forms a first accommodation space, and the first accommodation space is suitable for accommodating the first electromagnet;

[0019] The shaft support is provided with a first mounting groove on the side facing the first electromagnet along the first direction X, and the first mounting groove is suitable for accommodating the first magnet.

[0020] Beneficial effects: By arranging the first rib, the first electromagnet is limited, so as to avoid the first electromagnet from deviating, and by arranging the first mounting groove on the shaft support, the first magnet is limited and fixed, so as to ensure the stability of the magnetic interaction between the first electromagnet and the first magnet in the working state.

[0021] In an alternative embodiment, the shell has a first end face arranged at one end of the shell along the second direction Y, and the mounting cavity is further provided with a second rib, the second rib is arranged apart from the first end face along the second direction Y and forms a second accommodation space, and the second accommodation space is suitable for accommodating the second electromagnet;

[0022] The shaft support is provided with a second mounting groove on the side facing the second electromagnet along the second direction Y, and the second mounting groove is suitable for accommodating the second magnet.

[0023] Beneficial effects: By arranging the second rib, the second electromagnet is limited, so as to avoid the second electromagnet from deviating, and by arranging the second mounting groove on the shaft support, the second magnet is limited and fixed, so as to ensure the stability of the magnetic interaction between the second electromagnet and the second magnet in the working state.

[0024] In an alternative embodiment, the composite vibration motor further comprises a sliding block, which is arranged opposite to the shaft support along the third direction Z; a first sliding groove is formed on the side of the sliding block facing the shaft support along the third direction Z;

[0025] The shaft support is provided with a sliding part on the side facing the sliding block along the third direction Z, which is in sliding cooperation with the first sliding groove along the first direction X, and the first sliding groove and the sliding part are adapted to guide the shaft support to move reciprocally along the first direction X.

[0026] Beneficial effects: By arranging the sliding block and forming the first sliding groove on the side of the sliding block facing the shaft support, and arranging the sliding part on the shaft support, the sliding part is only slid into the first sliding groove along the first direction X to guide the shaft support to move reciprocally and linearly along the first direction X, thereby realizing the motion guidance of the shaft support along the first direction X, and further ensuring the stability of the transverse brushing mode.

[0027] In an alternative embodiment, the composite vibration motor further comprises a sliding rail, which is arranged on the side of the sliding block away from the shaft support along the third direction Z, and is fixedly connected with the inner wall of the shell;

[0028] A second sliding groove is formed on the side of the sliding block facing the sliding rail along the third direction Z, which is in sliding cooperation with the sliding rail along the second direction Y, and the second sliding groove and the sliding rail are adapted to guide the shaft support to move reciprocally along the second direction Y.

[0029] Beneficial effects: By arranging the sliding rail along the second direction Y in the mounting cavity, and forming the second sliding groove on the side of the sliding block facing the sliding rail, the second sliding groove and the sliding rail are only in sliding cooperation along the second direction Y to guide the shaft support to move reciprocally and linearly along the second direction Y, thereby realizing the motion guidance of the shaft support along the second direction Y, and further ensuring the stability of the longitudinal brushing mode.

[0030] In an alternative embodiment, two third ribs are further arranged in the mounting cavity, which are respectively arranged at the two ends of the sliding rail along the second direction Y, and the third ribs are adapted to limit the movement of the sliding block along the second direction Y.

[0031] Beneficial effects: By arranging the third ribs at the two ends of the sliding rail along the second direction Y, the movement of the sliding block along the second direction Y is limited by the third ribs, thereby avoiding the first magnet and the second magnet on the shaft support from leaving the set magnetic field range, and further ensuring the stability of the magnetic interaction between the first electromagnet and the first magnet in the working state, and the stability of the magnetic interaction between the second electromagnet and the second magnet in the working state.

[0032] In an alternative embodiment, the composite vibration motor further comprises a cover, which is adapted to be buckled with the shell along the third direction Z;

[0033] The cover body is provided with a limiting boss on the side thereof facing the shaft support in the third direction Z, and the limiting boss is adapted to limit the shaft support in the third direction Z.

[0034] Beneficial effects: By providing the limiting boss on the side of the cover body facing the shaft support, the shaft support is limited in the third direction Z by the limiting boss, the slider is prevented from being separated from the shaft support and / or the slide rail, and the stability of the sliding cooperation between the first sliding groove and the sliding part in the first direction X and the stability of the sliding cooperation between the second sliding groove and the slide rail in the second direction Y are ensured.

[0035] In an optional embodiment, the shell further has a second end face opposite the first end face in the second direction Y; the shell is provided with a first avoiding part penetrating through the second end face in the second direction Y;

[0036] The cover body has a third end face opposite the second end face in the third direction Z; the cover body is provided with a second avoiding part penetrating through the third end face in the second direction;

[0037] The first avoiding part and the second avoiding part are adapted to jointly enclose an avoiding hole adapted to avoid the shaft body in the first direction X.

[0038] Beneficial effects: By providing the avoiding hole, the shaft body is avoided in the first direction X, and the shell and the cover body are prevented from interfering with the movement of the shaft body in the first direction X in the transverse tooth brushing mode.

[0039] In an optional embodiment, the shell is provided with a plurality of first plug-in parts extended from the shell in the third direction Z towards the cover body; the cover body is provided with a plurality of second plug-in parts opposite the plurality of first plug-in parts in the third direction Z;

[0040] The second plug-in part is provided with a first stepped hole at one end thereof close to the shell in the third direction Z; the first plug-in part is inserted into the first stepped hole;

[0041] The second plug-in part is provided with a second stepped hole at one end thereof away from the shell in the third direction Z, and the second stepped hole is coaxially arranged with the first stepped hole; the first plug-in part is provided with a threaded hole in the third direction Z; the cover body is provided with a screw, one end of the screw is installed into the second stepped hole in the third direction Z, and the other end is threadedly connected with the threaded hole.

[0042] Beneficial effects: By inserting the first plug-in part into the first stepped hole, the alignment and clamping of the shell and the cover body are realized, which is convenient for assembly and is beneficial to improve the assembly precision; by passing the screw through the second stepped hole and the first stepped hole and threadedly connecting the screw with the threaded hole, the shell and the cover body are fastened, and the disassembly and maintenance are facilitated.

[0043] The second aspect of the utility model also provides an electric toothbrush, which comprises: a brush head and the composite vibration motor as described above.

[0044] Beneficial effects: the electric toothbrush provided by the utility model, through the composite vibration motor, can realize the switching of the electric toothbrush among the horizontal brushing mode, the vertical brushing mode and the composite brushing mode, and has simpler structure and lower noise. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0046] Figure 1 It is a first explosion view of the composite vibration motor of the utility model embodiment;

[0047] Figure 2 It is a second explosion view of the composite vibration motor of the utility model embodiment;

[0048] Figure 3 It is a perspective view of the shell of the composite vibration motor of the utility model embodiment;

[0049] Figure 4 It is a side view of the composite vibration motor of the utility model embodiment;

[0050] Figure 5 It is Figure 4 the sectional view of A-A section;

[0051] Figure 6 It is Figure 5 the sectional view of B-B section;

[0052] Figure 7 It is Figure 1 the relative position schematic view of the first silicon steel sheet and the second silicon steel sheet and the shaft support;

[0053] Figure 8 It is the connection schematic view of the composite vibration motor and the brush head of the electric toothbrush of the utility model embodiment;

[0054] Figure 9 It is Figure 8 the sectional view of C-C section.

[0055] BRIEF DESCRIPTION OF DRAWINGS

[0056] 10, housing; 101, mounting cavity; 102, first containing space; 103, second containing space; 104, avoiding hole; 105, first end face; 106, second end face; 11, first rib; 12, second rib; 13, third rib; 14, first avoiding part; 15, first plug-in part; 151, threaded hole;

[0057] 20, shaft support; 201, first mounting groove; 202, second mounting groove; 21, sliding part;

[0058] 30, shaft body;

[0059] 41, first magnet; 42, second magnet;

[0060] 501, first bending part; 502, second bending part; 503, third bending part; 504, fourth bending part; 51, first electromagnet; 511, first silicon steel sheet; 512, first coil; 52, second electromagnet; 521, second silicon steel sheet; 522, second coil;

[0061] 60, sliding block; 601, first sliding groove; 602, second sliding groove;

[0062] 70, sliding rail;

[0063] 80, cover; 801, third end face; 81, limiting boss; 82, second avoiding part; 83, second plug-in part; 831, first stepped hole; 832, second stepped hole; 84, screw;

[0064] 90, brush head. DETAILED DESCRIPTION

[0065] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0066] The embodiments of the utility model will be described in conjunction with Figures 1 to 9 .

[0067] According to the embodiments of the utility model, on the one hand, a composite vibration motor is provided, which has a first direction X, a second direction Y and a third direction Z intersecting with each other, and comprises:

[0068] The inner wall of the housing 10 surrounds to form a mounting cavity 101;

[0069] The shaft support 20 is movably arranged in the mounting cavity 101, please refer to Figure 1 As shown, the shaft support 20 is adapted to be fixedly connected with the shaft body 30, and the shaft support 20 is adapted to drive the shaft body 30 to move;

[0070] The first magnet 41 and the second magnet 42 are fixedly arranged on the shaft support 20, and the first magnet 41 and the second magnet 42 are both permanent magnets;

[0071] The first electromagnet 51 is oppositely arranged with the first magnet 41 along the first direction X, and the first electromagnet 51 is fixedly connected with the shell 10, and the first electromagnet 51 is adapted to magnetically interact with the first magnet 41 in the energized state, and the first electromagnet 51 and the first magnet 41 are adapted to drive the shaft support 20 to reciprocate along the first direction X;

[0072] The second electromagnet 52 is oppositely arranged with the second magnet 42 along the second direction Y, and the second electromagnet 52 is fixedly connected with the shell 10, and the second electromagnet 52 is adapted to magnetically interact with the second magnet 42 in the energized state, and the second electromagnet 52 and the second magnet 42 are adapted to drive the shaft support 20 to reciprocate along the second direction Y.

[0073] The composite vibration motor provided by the utility model, through setting the first magnet 41 on the shaft support 20, and making the first electromagnet 51 oppositely arranged with the first magnet 41 along the first direction X, the first electromagnet 51 generates an alternating magnetic field in the energized state, so that the first electromagnet 51 attracts or repels the first magnet 41, thereby driving the shaft support 20 to drive the shaft body 30 to reciprocate along the first direction X, and further realizing the transverse brushing mode of the electric toothbrush; through setting the second magnet 42 on the shaft support 20, and making the second electromagnet 52 oppositely arranged with the second magnet 42 along the second direction Y, the second electromagnet 52 generates an alternating magnetic field in the energized state, so that the second electromagnet 52 attracts or repels the second magnet 42, thereby driving the shaft support 20 to drive the shaft body 30 to reciprocate along the second direction Y, and further realizing the longitudinal mode of the electric toothbrush; when the first electromagnet 51 and the second electromagnet 52 are simultaneously in the energized state, the shaft support 20 drives the shaft body 30 to move along the first direction X while also moving along the second direction Y, thereby realizing the composite brushing mode of the electric toothbrush; through the external AC power supply to at least one of the first electromagnet 51 and the second electromagnet 52 for power supply, thereby realizing the switching of the electric toothbrush among the transverse brushing mode, the longitudinal brushing mode and the composite brushing mode; in addition, compared with the rotor motor in the related art, the composite vibration motor provided by the utility model has simpler structure and lower noise.

[0074] In some embodiments, please refer to Figure 2As shown, the first electromagnet 51 comprises a first silicon steel sheet 511 and a first coil 512, the first silicon steel sheet 511 is oppositely arranged with the first magnet 41 along the first direction X, and the first coil 512 is wound on the outer circumferential wall of the first silicon steel sheet 511;

[0075] The second electromagnet 52 comprises a second silicon steel sheet 521 and a second coil 522, the second silicon steel sheet 521 is oppositely arranged with the second magnet 42 along the second direction Y, and the second coil 522 is wound on the outer circumferential wall of the second silicon steel sheet 521;

[0076] The first coil 512 and the second coil 522 are adapted to be electrically connected with an external power source.

[0077] In the embodiment, when the first coil 512 is connected with alternating current, the first electromagnet 51 generates an alternating magnetic field and attracts or repels the first magnet 41, so as to drive the shaft support 20 to drive the shaft body 30 to reciprocate along the first direction X; when the second coil 522 is connected with alternating current, the second electromagnet 52 generates an alternating magnetic field and attracts or repels the second magnet 42, so as to drive the shaft support 20 to drive the shaft body 30 to reciprocate along the second direction Y; when the first coil 512 and the second coil 522 are simultaneously connected with alternating current, the shaft support 20 drives the shaft body 30 to simultaneously perform compound movement along the first direction X and the second direction Y, so as to realize the switching of the electric toothbrush between the transverse brushing mode, the longitudinal brushing mode and the compound brushing mode.

[0078] Further, the wiring ends of the first coil 512 and the second coil 522 are extended to the outside of the shell 10, so as to be electrically connected with an external power source.

[0079] In some embodiments, please combine Figure 2 and Figure 7 As shown, the first silicon steel sheet 511 has a first bending portion 501 and a second bending portion 502 connected with each other, one end of the first bending portion 501 is oppositely arranged with the first magnet 41 along the first direction X, and the other end extends along the second direction Y to form the second bending portion 502, and the first bending portion 501 and the second bending portion 502 are both wound with the first coil 512;

[0080] The second silicon steel sheet 521 has a third bending portion 503 and a fourth bending portion 504 connected with each other, the third bending portion 503 is oppositely arranged with the second magnet 42 along the second direction Y, and the other end extends along the first direction X to form the fourth bending portion 504, and the third bending portion 503 and the fourth bending portion 504 are both wound with the second coil 522.

[0081] In the embodiment, the first silicon steel sheet 511 is provided with the first bending portion 501 and the second bending portion 502, and the second silicon steel sheet 521 is provided with the third bending portion 503 and the fourth bending portion 504, so that the first silicon steel sheet 511 and the second silicon steel sheet 521 can wind more coils in the limited accommodation space of the shell 10, ensure the sufficient force of the electromagnetic field, and fully utilize the internal space of the shell 10.

[0082] It should be noted that the first silicon steel sheet 511 and the second silicon steel sheet 521 are both stacked by multiple silicon steel sheets along the third direction Z.

[0083] In some embodiments, referring to Figure 3 As shown in the figure, the first rib 11 is arranged in the mounting cavity 101, and the first rib 11 and the inner side wall of the shell 10 are arranged at intervals along the first direction X and form a first accommodation space 102. Please also refer to Figure 1 As shown in the figure, the first accommodation space 102 is suitable for accommodating the first electromagnet 51.

[0084] Please refer to Figure 2 As shown in the figure, the shaft support 20 is provided with a first mounting groove 201 on the side facing the first electromagnet 51 along the first direction X, and the first mounting groove 201 is suitable for accommodating the first magnet 41.

[0085] Further, the first magnet 41 is glued to the shaft support 20, so as to be firmly built-in in the first mounting groove 201.

[0086] In the embodiment, the first rib 11 is arranged to limit the first electromagnet 51, so as to avoid the deviation of the first electromagnet 51. Meanwhile, the first mounting groove 201 is arranged on the shaft support 20 to limit and fix the first magnet 41, so as to ensure the stability of the magnetic interaction between the first electromagnet 51 and the first magnet 41 in the working state.

[0087] In some embodiments, referring to Figure 3 As shown in the figure, the shell 10 has a first end face 105 arranged at one end of the shell 10 along the second direction Y. The mounting cavity 101 is further provided with a second rib 12, and the second rib 12 and the first end face 105 are arranged at intervals along the second direction Y and form a second accommodation space 103. The second accommodation space 103 is suitable for accommodating the second electromagnet 52.

[0088] The shaft support 20 is provided with a second mounting groove 202 on the side facing the second electromagnet 52 along the second direction Y, and the second mounting groove 202 is suitable for accommodating the second magnet 42.

[0089] Further, the second magnet 42 is glued to the shaft support 20, so as to be firmly built-in in the second mounting groove 202.

[0090] In the embodiment, the second rib 12 is arranged to limit the second electromagnet 52, so as to avoid the second electromagnet 52 from deviating. Meanwhile, the second mounting groove 202 is formed on the shaft support 20 to limit and fix the second magnet 42, so as to ensure the stability of the magnetic interaction between the second electromagnet 52 and the second magnet 42 in the working state.

[0091] In some embodiments, referring to Figure 1 , the composite vibration motor further comprises a sliding block 60, which is arranged opposite to the shaft support 20 along the third direction Z; the relative position of the sliding block 60 and the shaft support 20 along the second direction Y is fixed; referring to Figure 2 , the sliding block 60 is provided with a first sliding groove 601 on the side thereof facing the shaft support 20 along the third direction Z;

[0092] Referring to Figure 5 , the shaft support 20 is provided with a sliding part 21 on the side thereof facing the sliding block 60 along the third direction Z, the sliding part 21 is slidably connected with the first sliding groove 601 along the first direction X, and the first sliding groove 601 limits the sliding part 21 along the second direction Y; the first sliding groove 601 and the sliding part 21 are adapted to guide the shaft support 20 to move reciprocally along the first direction X.

[0093] In the embodiment, the sliding block 60 is arranged, and the first sliding groove 601 is formed on the side of the sliding block 60 facing the shaft support 20; meanwhile, the sliding part 21 is arranged on the shaft support 20, so that the sliding part 21 is slidably arranged in the first sliding groove 601 along the first direction X to guide the shaft support 20 to move reciprocally and linearly along the first direction X, thereby achieving the motion guidance of the shaft support 20 along the first direction X, and further ensuring the stability of the horizontal brushing mode.

[0094] In some embodiments, referring to Figure 2 , the composite vibration motor further comprises a sliding rail 70, which is arranged on the side of the sliding block 60 away from the shaft support 20 along the third direction Z, and is fixedly connected with the inner wall of the housing 10; the sliding rail 70 is arranged along the second direction Y;

[0095] Still referring to Figure 2 , the sliding block 60 is provided with a second sliding groove 602 on the side thereof facing the sliding rail 70 along the third direction Z, and the second sliding groove 602 is arranged along the second direction Y; referring to Figure 6 , the second sliding groove 602 is slidably connected with the sliding rail 70 along the second direction Y; the second sliding groove 602 and the sliding rail 70 are adapted to guide the shaft support 20 to move reciprocally along the second direction Y.

[0096] In the embodiment, the slide rail 70 is arranged in the second direction Y in the mounting cavity 101, and the second sliding groove 602 is arranged on the side of the sliding block 60 facing the slide rail 70, so that the second sliding groove 602 and the slide rail 70 are only slidably matched in the second direction Y to guide the shaft support 20 to move linearly in the second direction Y, thereby realizing the movement guiding of the shaft support 20 in the second direction Y and ensuring the stability of the longitudinal brushing mode.

[0097] Further, the slide rail 70 is an integral molding structure with the shell 10.

[0098] It should be noted that the sliding matching of the first sliding groove 601 and the sliding part 21 in the first direction X and the sliding matching of the second sliding groove 602 and the slide rail 70 in the second direction Y do not interfere with each other, and can be started alternatively or simultaneously, thereby ensuring the stability of the electric toothbrush in the transverse brushing mode, the longitudinal brushing mode and the compound brushing mode.

[0099] In some embodiments, as shown in Figure 2 The mounting cavity 101 is also provided with two third ribs 13, and the two third ribs 13 are arranged at the two ends of the slide rail 70 in the second direction Y. The third rib 13 is suitable for limiting the sliding block 60 in the second direction Y.

[0100] In the embodiment, the third rib 13 is arranged at the two ends of the slide rail 70 in the second direction Y to limit the stroke of the sliding block 60 in the second direction Y by the third rib 13, thereby avoiding the first magnet 41 and the second magnet 42 on the shaft support 20 from leaving the set magnetic field range, and ensuring the stability of the magnetic interaction between the first electromagnet 51 and the first magnet 41 in the working state, and the stability of the magnetic interaction between the second electromagnet 52 and the second magnet 42 in the working state.

[0101] Further, the third rib 13 is an integral molding structure with the shell 10.

[0102] In some embodiments, as shown in Figure 4 The compound vibration motor further comprises a cover 80, and the cover 80 is suitable for being buckled with the shell 10 in the third direction Z.

[0103] As shown in Figure 5 The cover 80 is provided with a limiting boss 81 on the side facing the shaft support 20 in the third direction Z, and the limiting boss 81 is suitable for limiting the shaft support 20 in the third direction Z.

[0104] In the embodiment, the limiting boss 81 is arranged on the side of the cover 80 facing the shaft support 20, so that the shaft support 20 is limited in the third direction Z by the limiting boss 81, and the slider 60 is prevented from being separated from the shaft support 20 and / or the slide rail 70, thereby ensuring the stability of the sliding cooperation between the first sliding groove 601 and the sliding part 21 in the first direction X and the stability of the sliding cooperation between the second sliding groove 602 and the slide rail 70 in the second direction Y.

[0105] In some embodiments, referring to Figure 1 , the shell 10 also has a second end face 106 opposite the first end face 105 in the second direction Y; the shell 10 is provided with a first avoiding part 14, and the first avoiding part 14 is arranged through the second end face 106 in the second direction Y;

[0106] The cover 80 has a third end face 801 opposite the second end face 106 in the third direction Z; the cover 80 is provided with a second avoiding part 82, and the second avoiding part 82 is arranged through the third end face 801 in the second direction Y;

[0107] For reference, please also refer to Figure 4 , the first avoiding part 14 and the second avoiding part 82 are adapted to jointly enclose an avoiding hole 104 adapted to avoid the shaft body 30 in the first direction X.

[0108] In the embodiment, the avoiding hole 104 is arranged to avoid the shaft body 30 in the first direction X, thereby avoiding the interference of the shell 10 and the cover 80 with the movement of the shaft body 30 in the first direction X in the transverse brushing mode.

[0109] In some embodiments, referring to Figure 1 and Figure 3 , the shell 10 is provided with a plurality of first plug-in parts 15, and the first plug-in parts 15 are extended by the shell 10 in the third direction Z towards the cover 80; the cover 80 is provided with a plurality of second plug-in parts 83, and the plurality of second plug-in parts 83 are arranged opposite to the plurality of first plug-in parts 15 in the third direction Z;

[0110] For reference, please refer to Figure 9 , the second plug-in part 83 is provided with a first stepped hole 831 at one end thereof close to the shell 10 in the third direction Z; and the first plug-in part 15 is inserted into the first stepped hole 831;

[0111] The second stepped hole 832 is coaxially arranged with the first stepped hole 831, and the first threaded hole 151 is arranged along the third direction Z.

[0112] In the embodiment, the first threaded hole 15 is inserted into the first stepped hole 831, so that the shell 10 and the cover 80 are aligned and buckled, which is convenient for assembly and improves the assembly precision.

[0113] According to the embodiment of the utility model, on the other hand, an electric toothbrush is also provided, which comprises a brush head 90 and the composite vibration motor as described above. Figure 8 As shown in the figure, the brush head 90 is arranged at one end of the shaft body 30 away from the shaft support 20 along the second direction Y, and the brush head 90 is detachably connected with the shaft body 30.

[0114] The electric toothbrush provided in the embodiment can not only switch between the horizontal brushing mode, the vertical brushing mode and the composite brushing mode, but also has a simpler structure and lower noise.

[0115] Although the embodiments of the utility model have been described in combination with the drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the utility model, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A composite vibration motor having a first direction (X), a second direction (Y) and a third direction (Z) intersecting each other two by two, characterized in that, The utility model relates to a kind of magnetic drive device, including: Shell (10), the inner wall of which is enclosed to form mounting cavity (101); Shaft support (20), movably disposed in the mounting cavity (101), the shaft support (20) is suitable for fixed connection with shaft body (30), the shaft support (20) is suitable for driving the shaft body (30) movement; First magnet (41) and second magnet (42) are provided on the shaft support (20); First electromagnet (51), opposite first magnet (41) along the first direction (X), the first electromagnet (51) is suitable for magnetic interaction with the first magnet (41) in energized state, the first electromagnet (51) and the first magnet (41) are suitable for driving the shaft support (20) reciprocating movement along the first direction (X); Second electromagnet (52), opposite second magnet (42) along the second direction (Y), the second electromagnet (52) is suitable for magnetic interaction with the second magnet (42) in energized state, the second electromagnet (52) and the second magnet (42) are suitable for driving the shaft support (20) reciprocating movement along the second direction (Y).

2. The composite vibration motor according to claim 1, wherein The first electromagnet (51) includes first silicon steel sheet (511) and first coil (512), the first silicon steel sheet (511) is opposite first magnet (41) along the first direction (X), the first coil (512) is wound on the outside circumferential wall of the first silicon steel sheet (511); The second electromagnet (52) includes second silicon steel sheet (521) and second coil (522), the second silicon steel sheet (521) is opposite second magnet (42) along the second direction (Y), the second coil (522) is wound on the outside circumferential wall of the second silicon steel sheet (521); The first coil (512) and / or the second coil (522) are suitable for electrically connected with external power supply.

3. The composite vibration motor according to claim 2, wherein The first silicon steel sheet (511) has first bending part (501) and second bending part (502) connected with each other, the first bending part (501) is opposite first magnet (41) along the first direction (X) one end, the other end extends along the second direction (Y) and forms the second bending part (502), the first bending part (501) and the second bending part (502) are all wound with the first coil (512); The second silicon steel sheet (521) has third bending part (503) and fourth bending part (504) connected with each other, the third bending part (503) is opposite second magnet (42) along the second direction (Y), the other end extends along the first direction (X) and forms the fourth bending part (504), the third bending part (503) and the fourth bending part (504) are all wound with the second coil (522).

4. The composite vibration motor according to claim 1, wherein The first rib (11) is arranged in the mounting cavity (101) and is spaced apart from the inner side wall of the shell (10) along the first direction (X) to form a first accommodating space (102) suitable for accommodating a first electromagnet (51). The shaft support (20) is provided with a first mounting groove (201) on one side of the first electromagnet (51) along the first direction (X), and the first mounting groove (201) is suitable for accommodating the first magnet (41).

5. The composite vibration motor according to claim 1, wherein The shell (10) has a first end face (105) arranged at one end of the shell (10) along the second direction (Y); the second rib (12) is arranged in the mounting cavity (101) and is spaced apart from the first end face (105) along the second direction (Y) to form a second accommodating space (103) suitable for accommodating a second electromagnet (52). The shaft support (20) is provided with a second mounting groove (202) on one side of the second electromagnet (52) along the second direction (Y), and the second mounting groove (202) is suitable for accommodating the second magnet (42).

6. The composite vibration motor according to claim 1, wherein The composite vibration motor further comprises a sliding block (60) arranged opposite to the shaft support (20) along the third direction (Z); the sliding block (60) is provided with a first sliding groove (601) on one side of the shaft support (20) along the third direction (Z). The shaft support (20) is provided with a sliding part (21) on one side of the sliding block (60) along the third direction (Z), and the sliding part (21) is slidably connected with the first sliding groove (601) along the first direction (X); the first sliding groove (601) and the sliding part (21) are suitable for guiding the shaft support (20) to reciprocate along the first direction (X).

7. The composite vibration motor according to claim 6, wherein The composite vibration motor further comprises a sliding rail (70) arranged on one side of the sliding block (60) away from the shaft support (20) along the third direction (Z), and the sliding rail (70) is fixedly connected with the inner wall of the shell (10); The sliding block (60) is provided with a second sliding groove (602) on one side of the sliding rail (70) along the third direction (Z), and the second sliding groove (602) is slidably connected with the sliding rail (70) along the second direction (Y); the second sliding groove (602) and the sliding rail (70) are suitable for guiding the shaft support (20) to reciprocate along the second direction (Y).

8. The composite vibration motor according to claim 7, wherein The mounting cavity (101) is further provided with two third ribs (13) arranged at two ends of the sliding rail (70) along the second direction (Y), and the third ribs (13) are suitable for limiting the sliding block (60) along the second direction (Y).

9. The composite vibration motor according to claim 5, wherein The composite vibration motor further comprises a cover body (80) adapted to be buckled with the shell (10) along the third direction (Z); The cover body (80) is provided with a limiting boss (81) on one side of the shaft support (20) along the third direction (Z), and the limiting boss (81) is adapted to limit the shaft support (20) along the third direction (Z).

10. The composite vibration motor according to claim 9, wherein The shell (10) further has a second end face (106) oppositely arranged with the first end face (105) along the second direction (Y); the shell (10) is provided with a first avoiding part (14) arranged through the second end face (106) along the second direction (Y); The cover body (80) has a third end face (801) oppositely arranged with the second end face (106) along the third direction (Z); the cover body (80) is provided with a second avoiding part (82) arranged through the third end face (801) along the second direction (Y); The first avoiding part (14) and the second avoiding part (82) are adapted to jointly enclose an avoiding hole (104) adapted to avoid the shaft body (30) along the first direction (X).

11. The composite vibration motor according to claim 9, wherein The shell (10) is provided with a plurality of first plug-in parts (15) extended by the shell (10) along the third direction (Z) towards the cover body (80); the cover body (80) is provided with a plurality of second plug-in parts (83) oppositely arranged with the plurality of first plug-in parts (15) along the third direction (Z) one by one; The second plug-in part (83) is provided with a first stepped hole (831) at one end close to the shell (10) along the third direction (Z); the first plug-in part (15) is inserted into the first stepped hole (831); The second plug-in part (83) is provided with a second stepped hole (832) at one end away from the shell (10) along the third direction (Z), and the second stepped hole (832) is coaxially arranged with the first stepped hole (831); the first plug-in part (15) is provided with a threaded hole (151) along the third direction (Z); the cover body (80) is provided with a screw (84), one end of the screw (84) is installed into the second stepped hole (832) along the third direction (Z), and the other end is threadedly connected with the threaded hole (151).

12. An electric toothbrush, characterized by Comprise: A brush head and the composite vibration motor according to any one of claims 1-11.

Images