Vibrating motor
[technical field]
The utility model relates to a kind of vibrating motor, relates in particular to a kind of vibrating motor for portable consumer electronic product.
[background technology]
Development along with electronic technology, portable consumer electronic product is more and more subject to pursuing of people, as mobile phone, handheld device, guider or palm multimedia entertainment equipment etc., these electronic products generally all can be used vibrating motor and do system feedback, such as vibrational feedback of the incoming call prompting of mobile phone, information indicating, navigation hint, game machine etc.Application, just requires the performance of vibrating motor high, long service life so widely.
The vibrating motor relevant to the utility model mainly comprise be provided with spatial accommodation housing, be contained in housing and the coil of forbidding with respect to housing, the spring part that is connected in housing and the vibrating mass being formed by mass and permanent magnet that is suspended at spatial accommodation by spring part, coil is relative with vibrating mass and at intervals, thereby can produce magnetic field after coil electricity, drives vibrating mass vibration.
Utilize the spring part vibrating mass that suspends, vibrating mass easily shakes in vibration processes, and the long-time use of another spring part also can occur to lose efficacy and elastic fatigue, so all can affect the overall performance of vibrating motor, and useful life is short.
Therefore, be necessary to provide a kind of novel vibrating motor to overcome the defect of correlation technique in fact.
[utility model content]
The utility model provides a kind of dependable performance, the vibrating motor of long service life.
The purpose of this utility model is achieved in that
A kind of vibrating motor, it comprises fixed part and vibrating mass, described fixed part comprises upper cover, coordinate with upper cover and form the lower cover of spatial accommodation and be immobilizated in down a pair of locating piece covering, described a pair of locating piece is respectively equipped with the first depressed part towards upper cover, a wherein side of described fixed part and vibrating mass also comprises coil and metallic plate, wherein the opposing party of described fixed part and vibrating mass also comprises magnet steel, coil and magnet steel arrange over against interval, described vibrating mass is provided with the second depressed part towards lower cover, described the second depressed part coordinates the tracks while forming vibrating mass motion with the first depressed part, in described tracks, be provided with rolling axostylus axostyle, described vibrating motor makes the assembly of vibrating mass pressure holding rolling axostylus axostyle in thereby locating piece is suspended in spatial accommodation by the attraction between magnet steel and metallic plate, coil passes into alternating current, thereby the electromagnetic induction power between coil and magnet steel makes vibrating mass by the rotation reciprocating motion of axostylus axostyle in tracks of rolling.
Preferably, described rolling axostylus axostyle is cylindrical shape.
Preferably, described vibrating motor is also respectively equipped with ball at the two ends of rolling axostylus axostyle, thereby ball coordinates rolling axostylus axostyle in tracks, to rotate together vibrating mass reciprocating motion.
Preferably, described vibrating mass is in whole reciprocating process, and the projection of described magnet steel on metallic plate is all in metallic plate.
Preferably, described a pair of locating piece and lower cover are wholely set, and described locating piece is protruded and extends to form to upper cover direction by lower cover.
A kind of vibrating motor, it comprises fixed part and vibrating mass, described fixed part comprises upper cover, coordinate with upper cover and form the metal lower cover of spatial accommodation and be immobilizated in down a pair of locating piece covering, it is characterized in that: described a pair of locating piece is respectively equipped with the first depressed part towards upper cover, described vibrating mass comprises magnet steel, described fixed part also further comprises and is immobilizated in down the coil covering, coil and magnet steel arrange over against interval, described vibrating mass is provided with the second depressed part towards lower cover, described the second depressed part coordinates the tracks while forming vibrating mass motion with the first depressed part, in described tracks, be provided with rolling axostylus axostyle, described vibrating motor makes the assembly of vibrating mass pressure holding rolling axostylus axostyle in thereby locating piece is suspended in spatial accommodation by the attraction between magnet steel and metal lower cover, coil passes into alternating current, thereby the electromagnetic induction power between coil and magnet steel makes vibrating mass by the rotation reciprocating motion of axostylus axostyle in tracks of rolling.
Preferably, described rolling axostylus axostyle is cylindrical shape.
Preferably, described vibrating motor is also respectively equipped with ball at the two ends of rolling axostylus axostyle, thereby ball coordinates rolling axostylus axostyle in tracks, to rotate together vibrating mass reciprocating motion.
The utility model has the advantage of: vibrating motor dependable performance of the present utility model, long service life.
[accompanying drawing explanation]
The three-dimensional exploded view of the vibrating motor of the first execution mode that Fig. 1 provides for the utility model;
The removal protecgulum of the vibrating motor of the first execution mode that Fig. 2 provides for the utility model and the vertical view after vibrating mass;
The cutaway view of the vibrating motor of the first execution mode that Fig. 3 provides for the utility model;
The removal protecgulum of the vibrating motor of the second execution mode that Fig. 4 provides for the utility model and the vertical view after vibrating mass.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is elaborated.
As shown in Figure 1 to Figure 3, the vibrating motor 100 of the first execution mode providing for the utility model, it comprises upper cover 10, coordinate the lower cover 20 that forms spatial accommodation with upper cover 10, be immobilizated in a metallic plate 30 and a pair of locating piece 40 on lower cover 20, the be placed in both sides of metallic plate 30 of described a pair of locating piece 40, be immobilizated in the coil 501 on metallic plate 30, described upper cover 10, lower cover 20, metallic plate 30, locating piece 40 and coil 501 form the fixed part of vibrating motor 100, described a pair of locating piece 40 is respectively equipped with the first depressed part 401 towards upper cover 10, described vibrating motor 100 further comprises balancing weight 601 and is immobilizated in the magnet steel 602 on balancing weight 601, described balancing weight 601 and magnet steel 602 form the vibrating mass 60 of vibrating motor 100, described coil 501 arranges over against interval with magnet steel 602, described balancing weight 601 is provided with the second depressed part 6011 towards lower cover 20, described the second depressed part 6011 coordinates the tracks while forming vibrating mass 60 motion with the first depressed part 401, in described tracks, be provided with rolling axostylus axostyle 70, thereby described vibrating motor 100 makes vibrating mass 60 pressure holding rolling axostylus axostyle 70 assembly be suspended in spatial accommodation in locating piece 40 by the attraction between magnet steel 602 and metallic plate 30, coil 501 passes into alternating current, thereby the electromagnetic induction power between coil 501 and magnet steel 602 makes vibrating mass 60 rotation reciprocating motion in tracks by rolling axostylus axostyle 70.In the present embodiment, the second depressed part 6011 is formed on balancing weight 601, the second depressed part 6011 is so long as be formed on vibrating mass in fact, in the utility model, vibrating mass is exactly the reciprocating parts in spatial accommodation that act on that are subject to electromagnetic induction power between coil and magnet steel, vibrating mass is also not limited to only has balancing weight and magnet steel, can further include some other auxiliary bodies.
As the rolling axostylus axostyle 70 in preferred present embodiment, are cylindrical shapes.The shape that it should be noted that rolling axostylus axostyle 70 at this is not limited to cylindrical shape, and the shape that for example " dumbbell " is the same is also feasible.Certainly, thus other all can realize vibrating mass 60 reciprocating rolling axostylus axostyle of the rotation in tracks by rolling axostylus axostyle 70 development shape be all that claim of the present utility model is advocated.
In addition, as the vibrating mass 60 in preferred present embodiment in whole reciprocating process, the projection of described magnet steel 602 on metallic plate 30 is all in metallic plate 30, and described a pair of locating piece 40 can be wholely set with lower cover 20, described locating piece 40 is to be protruded and extend to form to the direction of upper cover 10 by lower cover 20.
As shown in Figure 4, the vibrating motor 100 ' of the second execution mode providing for the utility model, its place different from the vibrating motor 100 of the first execution mode is: the vibrating motor 100 ' in the present embodiment is also respectively equipped with ball 80 at the two ends of rolling axostylus axostyle 70 ', thereby ball 80 coordinates rolling axostylus axostyle 70 ' in tracks, to rotate together vibrating mass reciprocating motion.At the two ends of rolling axostylus axostyle 70 ', ball 80 is set, because the existence of ball 80 axostylus axostyle 70 ' that can prevent from rolling rocks in tracks, thereby balance, elimination while having guaranteed vibrating mass motion are rocked, and have further improved the performance reliability of vibrating motor.
Distortion as a kind of optional execution mode, coil in vibrating motor 100 in the first execution mode and metallic plate can with magnet steel transposition, coil and metallic plate are immobilizated on balancing weight the part as the vibrating mass of vibrating motor, and magnet steel is immobilizated in down the part covering as the fixed part of vibrating motor.Such distortion can apply in the execution mode of all vibrating motors that are associated that provide in the utility model.
Distortion as the optional execution mode of another kind, metallic plate in the vibrating motor of the first execution mode 100 30 can be omitted, the lower cover that lower cover 20 is arranged to be made of metal, thus by the attraction between magnet steel 602 and metallic plate 30, vibrating mass 60 pressure holding rolling axostylus axostyle 70 assembly are suspended in spatial accommodation in locating piece 40.Such distortion can apply in the execution mode of all vibrating motors that are associated that provide in the utility model.
The foregoing is only preferred embodiments of the present utility model; protection range of the present utility model is not limited with above-mentioned execution mode; in every case the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or is changed, and all should include in the protection range of recording in claims.