WO2005027317A1 - 振動発生用電動機 - Google Patents
振動発生用電動機 Download PDFInfo
- Publication number
- WO2005027317A1 WO2005027317A1 PCT/JP2004/011758 JP2004011758W WO2005027317A1 WO 2005027317 A1 WO2005027317 A1 WO 2005027317A1 JP 2004011758 W JP2004011758 W JP 2004011758W WO 2005027317 A1 WO2005027317 A1 WO 2005027317A1
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- WO
- WIPO (PCT)
- Prior art keywords
- power supply
- vibration
- circuit board
- supply terminal
- motor
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
- H02K7/061—Means for converting reciprocating motion into rotary motion or vice versa using rotary unbalanced masses
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
- H02K7/065—Electromechanical oscillators; Vibrating magnetic drives
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
- H02K7/075—Means for converting reciprocating motion into rotary motion or vice versa using crankshafts or eccentrics
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49204—Contact or terminal manufacturing
Definitions
- the present invention is mainly used for generating a vibration that operates by a silent alarm function mounted on a portable device (including an electronic device such as a mobile phone, a PHS, a small wireless communication device, and various portable information communication terminals). More specifically, the present invention relates to a power supply mechanism of a power supply land of a power supply side circuit board in a housing of a portable device and the vibration generating motor held on the housing side.
- vibration generating devices are roughly classified into two types in terms of structure.
- One is a vibration generating motor using a so-called small motor (hereinafter simply referred to as a vibration motor if necessary), and the other is a speaker that reciprocates a magnetic circuit section with a low frequency signal.
- This is a multi-function device that also has a buzzer function (hereinafter simply referred to as a vibration factor as needed).
- the vibration actuator also has a function of generating a vibration in a magnetic circuit portion by a low-frequency signal, and also has a function of generating a sound in a sound range, so that the installation efficiency of a flat multifunction integrated component can be improved. It can be realized and its use is expanding depending on the application. In particular, these two types of vibration generation are especially The live devices are efficiently located and mounted within the limited mounting space within its housing.
- the power supply method from the power supply side (mainly the circuit board) to the main body of the vibration generating device has been improved day by day, and one of the conventional methods is to use conventional lead wire soldering or connector connection.
- a structure combining an elastic pressing body and a power supply terminal in the form of a panel, and a structure for directly attaching to a circuit board by soldering are being studied.
- the vibration motor can be incorporated into a portable device body (hereinafter simply referred to as a device body as necessary) in a relatively small number of steps in assembling work, and is directly connected to the motor body from the circuit board side.
- a portable device body hereinafter simply referred to as a device body as necessary
- FIG. 1 As a method for enabling power supply, there is a conventional power supply terminal structure as shown in FIG.
- a power supply terminal 104 shown in Fig. 12 is arranged on a housing base 103 of the vibration motor 101 having a weight 106-a terminal block 105 serving as an attachment portion at one end, and one terminal is connected to a connection portion 104e. Then, a part of a strip-shaped portion following the terminal block 105 and the contact portion 104d is bent at a bent portion 104b to form a panel panel.
- the contact portion 104d of the movable portion 104c of the power supply terminal 104 is pressed against the power supply land 55 of the circuit board 50 provided on the device body.
- an elastic pressing body 130g is arranged between the power supply terminal 104 and the housing case 103 as a part of the holder 130 covering the outer periphery of the housing case 103.
- the contact portion 104d of the power supply terminal 104 is formed by the sum of the interaction between the rubber elastic stress of the convex portion of the elastic pressing body 130g and the panel panel elastic stress of the power supply terminal 104. Is pressed against the power supply land 55 (for example, see Patent Documents 1 to 3).
- Patent Document 1 Japanese Patent Laid-Open No. 2000-78790
- Patent Document 2 Republished Patent WO99Z23801
- Patent Document 3 JP 2001-95200
- Patent Document 4 Japanese Patent Application Laid-Open No. 2002-44904
- a power supply terminal structure using a coil spring wound with a panel elastic wire has been devised for a vibration motor for a long time.
- Patent Document 5 JP-A-11-136327
- the movable part 204 c of the power supply terminal 204 mainly includes the housing case 203 end. 12 is elastically deformed at the winding portion 204b which is the same as the bent portion 104b of FIG. 12, so that the vibration motor 201 is mounted between the winding portion 204b and the contact portion 204d when the vibration motor 201 is mounted on the circuit board of the device main body.
- the distance in the direction of the rotation axis (the distance between the fulcrum and the point of action) is long, there is no core rod at the center of the winding part 204b.
- the stability of the power supply terminal 204 itself is weak between the PQ and the power supply terminal 204, and the power supply terminal 204 itself swings greatly.
- a problem to be solved by the conventional power supply terminal structure common to these is that the power supply land having the circuit board surface as the ground reference surface and the contact portion of the power supply terminal of the vibration motor in contact with the land are described. Is important to ensure the connection without being adversely affected by vibration. It becomes a title.
- the vibration motor 101 in which the weight 106 is attached to the rotating shaft the eccentric weight 106 is rotated while being held on the housing side via the holder 130.
- both ends of the vibration motor 101 swing around both ends in the outer circumferential direction in which the weight rotates around G shown in the figure (hereinafter, referred to as a vibration operation gravity point G).
- the swing state of the power supply terminal 104 due to the vibration operation at this time is shown in a drawn-out enlarged view of a round frame.
- the contact portion 104d of the power supply terminal 104 swings greatly with the movement amount of the amplitude P7 and the amplitude P8 around the vibration operation center of gravity G. Move. Further, since the elastic pressing body 130g of the holder 130 is elastically deformed at the interval N between the circuit board 50 and the housing case 103 shown in FIG. The total amount of movement due to the 104d swing is the sum of P7 + P8 + P9. Further, the distance L3 between the fulcrum F, which is the bent portion 104b of the power supply terminal 104, and the action point E, which is the contact portion 104d, shown in FIG.
- FIGS. 16 to 19 show examples of another model of a vibration motor.
- the rotation of the eccentric weight 106 causes The ends of both shafts oscillate around the center of gravity G of the operating point in the outer peripheral direction where the weight rotates.
- the swing state of the power supply terminal 104 due to the vibration operation at this time is shown in the enlarged drawing of a circular frame in each of FIGS.
- the contact portion 104d of the power supply terminal 104 has a movement amount of the amplitude P10 and the amplitude P11 around the vibration operation center of gravity G when viewed from the upper surface side in FIG. 17 and the front side shown in FIG. Shaking greatly. Furthermore, since the elastic pressing body 130g of the holder 130 is elastically deformed at the interval N between the circuit board 50 and the housing case 103, the motion of contracting with the amplitude P12 is actually applied, and the overall movement due to the swing of the contact portion 104d of the power supply terminal 104 is performed. The amount of movement is the sum of P10 + P11 + P12. More Fig.
- the panel panel-like power supply terminal 104 extending in the rotation axis direction of the weight is provided on the circuit board 50 surface.
- the body 130g is arranged so as to be stacked in the height direction between the vibration motor body and the housing case 103, so that the pressing force of the contact part 104d is incorporated.
- the interval N) often does not become constant.
- the height dimension of the arrangement space in the housing is different for each housing on which the vibration motor is set. Different, there is the power to vary.
- This holding state indicates that the pressing force (terminal pressure) of the contact portion 104d against the surface of the power supply land 55 of the circuit board 50 constantly changes due to the dimensional variation of the interval N.
- FIG. 19 shows, as an example of such a case, the pressing force of the contact portion 104d against the change in the dimension in the height direction (hereinafter referred to as the terminal height and the height as required) (hereinafter referred to as the terminal pressure as required). And graphs show the changes in the graph.
- the terminal height shown in Fig. 19 is desirably set to 6.0mm as a reference value and a terminal pressure of 0.75N is obtained due to built-in design.
- the terminal height varies within the range of plus or minus 0.2 mm within the tolerance range of the assembled parts, and in practice, terminal pressure at a terminal height of 6.2 to 5.8 mm can be considered.
- the entire contact surface with the circuit board 50 surface is elastically deformed in the height direction.
- the pressing force fluctuates due to variations in the amount and the mounting height position, and a fine contraction operation due to vibration is repeated between the circuit board surface and the vibration motor main body.
- the contact position of the power supply terminal 104 with the surface of the circuit board 50 always changes, and wear occurs at the contact portion.
- the object of the present invention is to solve the above-mentioned problems by providing high reliability in connection between the power supply terminal on the vibration motor side and the power supply land on the circuit board on the device main body to be mounted, and a long time. It is an object of the present invention to provide a power supply mechanism for a vibration motor that operates electrically stably by enabling stable power supply, that is, prolonging the life of a contact point. It is another object of the present invention to achieve both a mounting structure of a vibration motor main body that does not cause excessive stress and load on a circuit board and a holding structure that reliably transmits vibration to a housing of a portable device.
- a housing case accommodating at least a part of the vibration generating mechanism
- a pair of power supply terminals that protrude from the housing case and have an elastic force to abut on and electrically connect to a power supply land of a power supply side circuit board mounted in a mobile device housing, and supply power to the vibration generating mechanism.
- a vibration generating motor comprising:
- the vibration generating motor is arranged along a plane substantially perpendicular to the rotation axis of the weight, including the center of gravity of the vibration operation of the motor.
- a fulcrum F and an action point E are located along a plane M substantially perpendicular to the rotation axis 2 at a position including the center point G of the vibration operation of the vibration motor 1. are arranged respectively.
- the vibration generating motor When the vibration generating motor is mounted on a circuit board in a mobile device housing, the movement direction of an action point of the power supply terminal movable portion that abuts and moves on a power supply land is arranged so as to approach the vibration operation center of gravity.
- the motor for generating vibration according to claim 1 is characterized in that:
- the action point E located at the tip end of the power supply terminal 4 is pushed by the power supply land of the circuit board to be assembled. It is arranged to move in the direction of the arrow shown in the figure, that is, in the direction approaching the center of gravity G of the vibration operation. Conversely, in the case where the action point E is located outside the fulcrum F and the power supply terminal 4 is in the opposite direction to the arrow, and when they are open outward and can move, the vibration operation center of gravity is opposite to the above figure. The arrangement is close to the point.
- a vibration generating motor according to claim 1 or claim 2.
- the moving direction of the action point F shown in FIGS. 1, 3, and 9 is arranged so as to be movable substantially perpendicularly or substantially in an arc with respect to the power supply land surface. It is something that is done. For example, when the amount of movement is small, it moves substantially vertically, and when the amount of movement or the movable angle is large, it moves substantially on an arc.
- a fulcrum of the power supply terminal movable portion provided along a plane direction substantially perpendicular to the rotation axis of the weight, including the center of gravity of the vibration operation of the vibration generating motor.
- an action point of the power supply terminal movable portion is:
- a vibration generating motor according to claim 1 to claim 3.
- the point of action E of the power supply terminal movable portion is perpendicular to the fulcrum F by a line Y It is close to the side.
- a fulcrum of a power supply terminal movable portion disposed along a plane direction substantially perpendicular to the rotation axis of the weight including the vibration operation center of gravity
- a fulcrum and an action point of the power supply terminal movable portion are: For the perpendicular drawn on the circuit board from the vibration operation center of gravity,
- It is arranged within an angle range of about 45 degrees on one side in the direction of the circuit board surface and about 90 degrees on both sides from the center of gravity of the vibration operation.
- a vibration generating motor according to claim 1 to claim 4.
- the fulcrum F and the action point E are arranged within an angular range W surrounded by a triangle shown in the direction of the circuit board surface from the vibration operation center of gravity G. Be done
- a ring-shaped contact point is formed at the tip of the movable portion of the power supply terminal
- the contact point with the power supply land is arranged
- the motor for generating vibration according to claim 1 to claim 5 is provided.
- a ring-shaped contact point is provided at the tip of the movable portion of the power supply terminal, and is arranged so as to circumscribe the power supply land surface of the circuit board.
- a ring-shaped contact point wound around the distal end of the movable portion of the power supply terminal is formed, and a part of the contact point circular outer periphery,
- the motor for generating vibration according to claim 1 to claim 5 is provided.
- the ring-shaped contact portion is formed into a plurality of turns, and the ring-shaped contact portion is connected to a power supply land of a circuit board. Are arranged so that they are circumscribed by multiple contacts.
- the arrangement direction of the contact point circular outer periphery at the tip of the movable portion of the power supply terminal is
- the contact of the leading end of the movable portion of the power supply terminal is performed.
- the arrangement direction of the circular outer periphery at the point is substantially the same as the movable direction along the plane direction substantially perpendicular to the rotation axis of the weight.
- the vibration generating motor according to claim 1 to claim 8 is provided.
- a pair of power supply terminals is formed by an elastic panel member made of a wire.
- a terminal block shape having a terminal block flat portion in which one plane is formed in parallel with the rotation axis of the weight
- the vibration generating motor When the vibration generating motor is mounted on a circuit board in a portable device housing, the circuit board surface and the terminal block flat portion are in direct abutment with each other,
- the vibration generating motor according to claim 1 to claim 9 is provided.
- the circuit board surface and the terminal block flat portion are directly opposed to each other without any intervention between the two surfaces.
- the power supply terminal contact portion is electrically connected on the same plane as the terminal block flat portion at the power supply land position of the circuit board.
- a vibration generating motor according to claim 1 to claim 10.
- a winding part 4b formed by twisting a part of the terminal block 5 so as to wind a winding core part 5d protruding in the axial direction of the rotating shaft 2 is formed. And a part of the power supply terminal 4.
- a holder configured to hold the vibration-generating motor in a mobile device housing; wherein the vibration-generating motor is mounted on a circuit board in the mobile device housing; The ground plane that contacts the circuit board surface
- the vibration generating motor according to claim 1 to claim 11 is provided.
- a ground plane portion that comes into contact with the holder-shaped circuit board surface that covers the housing case of the vibration generating motor with the terminal block plane portion at the center The terminal block plane portion and the ground plane portion of the holder are located on substantially the same plane, located on both sides in the rotation axis direction of the weight with respect to the terminal block plane portion of the vibration generating motor.
- the vibration generating motor is incorporated on a circuit board in the portable device housing, and a power supply land of the circuit board;
- a vibration generating motor according to claim 1 is provided.
- a portable device characterized by that.
- connection state between the power supply terminal of the vibration motor and the circuit board power supply land on the side of the device to be mounted high reliability and long-term stable power supply, that is, eliminating the cause of wear at the contact point due to vibration and lengthening the power supply terminal Life extension can be realized.
- This makes it possible to obtain a durable vibration motor that operates electrically more stably than before, and furthermore, the connection structure of the power supply terminals that does not generate excessive stress or load on the circuit board and the power supply land, A vibration motor having both a holding structure for transmitting vibration generated to the housing on the main body side can be obtained.
- a housing case accommodating at least a part of the vibration generating mechanism
- a pair of power supply terminals that protrude from the housing case and have an elastic force to abut on and electrically connect to a power supply land of a power supply side circuit board mounted in a portable device housing, and supply power to the vibration generating mechanism.
- a power supply terminal structure that is least susceptible to the effects of vibration generated by the vibration motor body can be obtained.
- the value is suppressed to one fourth to one tenth of the conventional value.
- the distance from the fulcrum (bent portion) for obtaining the panel elastic force to the point of application (contact portion) is shortened, and the torsion torque is easily generated by the winding portion.
- Sufficient pressure connection can be achieved only by the panel elastic force of itself. Therefore, the reliability of energization at the power supply terminal contact portion at the time of built-in connection is improved.
- the reliability of mounting the vibration motor on the circuit board surface can be improved, and the elastic pressing force against the power supply land can be kept constant. And the contact with the power supply terminal contact portion can be stabilized.
- a coreless type cylindrical vibration motor having an eccentric weight on a rotating shaft will be described as an example of a vibration generating motor.
- FIG. 1 is a perspective view showing an example of the best embodiment of the present invention.
- each of the fulcrum F and the action point E of the movable portion 4c of the power supply terminal 4 that moves in the direction in which the vibration motor 1 It has a power supply terminal structure that is disposed along a plane M (XY plane) substantially perpendicular to the rotation axis 2 of the weight 6 including the operation center of gravity G.
- FIG. 2B is a schematic cross-sectional view of the inside of the coreless motor.
- an eccentric weight 6 is fixed to one end of a rotating shaft 2, and a rotor unit for driving the rotating shaft 2 is housed and arranged in a housing case 3 while being supported by bearings 9.
- the driving mechanism of the motor is roughly divided into a housing case 3 on the stator side, a terminal block 5 for holding the power supply terminal 4, a bearing 9, a magnet 7, and, on the other hand, a rotating shaft 2 on the rotor side and a winding coil. 8, and an electric rectification mechanism 10 necessary for rotational driving that integrally connects the rotary shaft 2 and the coil 8 to each other, is schematically arranged.
- the weight 6 is swung by the rotating operation of the rotor portion, and an oscillating force is generated.
- a cylindrical magnet 7 is fitted and fixed at the center of a small-diameter stepped portion formed at one end of a housing case 3, and a bearing 9 and a power feeding mechanism are provided at one open end.
- a terminal block 5 is provided.
- the terminal block 5 is formed of a resin material or other insulating material, is provided on the opening side of the housing case 3, and is provided along the outer peripheral surface of the cylinder of the housing case 3.
- Can be This motor structure is partly different from the terminal block arrangement of a general cylindrical coreless motor.
- the power supply terminal 4 is a conductive rod-shaped member having panel elasticity.
- the terminal block 5 has a winding part (reference numeral 4b) formed by twisting and deforming a winding part 5d (a cylindrical part in the figure) of the terminal block 5 protruding in the longitudinal direction of the rotating shaft 2 so as to be wound.
- a ring-shaped power supply terminal contact portion 4d is formed at one end of the tip of the ring-shaped power supply terminal contact portion 4d which extends outward in the circumferential direction around the winding portion 4b.
- the other end of the power supply terminal 4 opposite to the winding portion 4b is connected to a terminal 11 which is electrically connected to a brush piece of a rectifying mechanism 10 inside the motor body by soldering or the like. Conducted connection at section 4e.
- the material of the power supply terminal 4 is made of a copper alloy such as phosphor bronze, beryllium copper, nickel silver, or the like having a panel elasticity and a conductive property, or a ferrous alloy such as SUS or SWP. It is desirable to be formed from a rod-shaped member. A part of the rod-shaped member has a panel elasticity by being wound and twisted by the winding part 4b, and a torsion coil panel structure as shown in each figure is obtained.
- the specific panel elasticity can be basically designed according to the material and diameter of the rod-shaped member, the number of turns of the winding portion 4b, the movable angle of the movable portion 4c of the power supply terminal, and the like. Any elastic force according to can be determined.
- the value of the elastic force was a value that was more than satisfactory even when compared with the condition of the conventional combination of the panel panel terminal and the elastic pressing body shown in FIG. This value is most desirably maintained at a constant value with a moderate pressing force without changing the pressing force of the power supply terminal contact portion on the circuit board side. (See Figure 19)
- FIG. 3 (A) Operationally, as indicated by a broken line and an arrow in FIG. 3 (A), along the direction of a plane (M plane in FIG. 1) substantially perpendicular to the center of the cylinder of the core part 5d.
- the movable portion 4c of the power supply terminal 4 is provided so as to be elastically deformable and movable on an arc.
- the movable portion 4c has a portion protruding outward from the flat portion 5c of the terminal block 5 contacting and pushing the power supply land 55 of the circuit board 50 as shown in FIG. It is stored in the recess 5b of the terminal block 5 (see Fig. 2).
- the flat portion 5c of the terminal block 5 is held in contact with the board plane of the circuit board 50 (position of the power supply land 55) in a face-to-face relationship.
- FIG. 7 shows a state in which the holder 30 for actually covering the outer surface of the vibration motor main body is mounted and combined with the circuit board 50 in the device housing.
- the flat portion 5c of the terminal block 5 is mounted on the circuit board.
- the vibration motor 1 is held directly in contact with the circuit board 50, and the bottom surface of the holder 30 is in contact with the circuit board 50 on the same plane.
- the contact position at which the contact portion 4d in the figure contacts the power supply land of the circuit board 50 is indicated by the symbol P at the same time.
- the vibration motor 1 oscillates about the vibration operation center of gravity G.
- the forces Q1 and Q2 shown in the figure act on the left and right sides in both directions of the rotation axis, centering on the width T of the terminal block flat portion 5c near the contact point P in FIG.
- the contact position P is located at the center of the swing without being affected by the movements of Q1 and Q2. It can always be in stable contact with the power supply land side.
- the distance between the winding part 4b and the ring-shaped power supply terminal contact part 4d that is, the distance from the fulcrum F of the power supply terminal movable part 4c to the action point E Is extremely shorter than the conventional panel panel terminal structure shown in Fig. 12 (B), and the direction extending from the fulcrum F of the power supply terminal movable part 4c to the point of action E is 90 degrees compared to the conventional panel panel terminal structure. different.
- the vibration motor 1 originally generates a whirling force due to the rotational movement of the eccentric weight 6 attached to the rotary shaft 2, and swings as shown in Figs. 5 to 7. That is, due to the rotation operation, the entire vibration motor 1 oscillates in the outer peripheral direction in which the weight rotates around the vibration operation center of gravity G described above.
- the swinging state of the power supply terminal due to the vibration operation at this time is shown in the enlarged drawing of a circular frame in each of FIGS.
- the contact portion 4d of the power supply terminal 4 has a movement amount of the amplitude P1 and the amplitude P2 around the vibration operation center of gravity G, Swings slightly.
- the distance between the circuit board 50 and the housing case 3 is kept constant by the flat portion 5c of the terminal block 5 as described above.
- the total movement amount due to the swing of is the sum of only P1 + P2.
- the distance L1 between the fulcrum F near the winding part 4b of the power supply terminal 4 shown in Fig. 3 and the point of action E, which is the contact part 4d, is short, and the point of action E is closer to the center of gravity G of the vibration operation. Affecting the rigidity of the terminal itself and the ability to follow the swing, the displacement of the contact portion 4d due to the swing is minimized, and there is no adverse effect on the power supply land that causes traces of contact wear. Does not cause continuity failure
- the action point E is closer to the vibration operation center of gravity G, and its movable direction is Since they are arranged together along a plane substantially perpendicular to the rotation axis including the operating center of gravity G, the influence of the swing is minimal.
- the power supply terminal has a panel structure in which the panel elasticity of the power supply terminal itself can be sufficiently obtained by the winding portion 4b, the terminal block flat portion 5c is in direct contact with the power supply land on the circuit board. Section 4d can always be connected with a constant pressing force.
- the vibration motor 1 when the vibration motor 1 is mounted on the circuit board 50 in the main body of the device, the fulcrum F and the operating point E of the movable portion 4c of the power supply terminal 4 With respect to the perpendicular line Y drawn on the circuit board from the operation center of gravity G, within an angle range W of about 45 degrees on one side and about 90 degrees on both sides with respect to the plane direction of the circuit board 50 from the vibration operation center of gravity G.
- the power supply terminal structure including the terminal block 5 can be arranged compactly and efficiently.
- a ring-shaped contact point is formed at the tip of the movable portion 4c, and a contact portion 4d with a power supply land is disposed on a part of the circular outer periphery of the contact point. It is a structure that contacts the power supply land in a multi-contact state by contact points formed in a wound ring shape. Further, as can be seen from FIG. 1, the arrangement direction of the circular outer periphery of the contact point at the tip of the movable portion 4 c of the power supply terminal 4 is arranged along a surface direction substantially perpendicular to the rotation axis 2 of the weight 6, The contact with the power supply land is made in the direction of a large circular arc to suppress the occurrence of contact wear marks.
- the contact portion 4d operates at a short distance from the fulcrum F of the winding portion 4b, and contacts the power supply land 55 on the circuit board side in a multi-contact state, and the movable portion 4c is moved to the concave portion 5b. It is held at a constant terminal pressure while it is held in a narrow space, so even if a strong external impact is applied, such as vibration accompanying the driving operation of the vibration motor 1 or the drop impact of the device body, the power supply land It is possible to always obtain the reliability and stability of the power supply operation at the contact portion 4d with 55.
- FIGS. Na The same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description will be omitted or simplified.
- the points different from the first embodiment are that the torsion coil-shaped power supply terminal centered on the winding portion is in a torsion spring shape, and that the tip of the movable portion of the power supply terminal is a rib.
- the point is that the contact shape is bent into a V-shape, which is different from the ring shape, and the arrangement of the internal structure of the coreless motor is different.
- the collapsible structure in which the pair of power supply terminals fall inwardly facing each other is the same as described above.
- the pair of power supply terminals is a torsion spring that twists and deforms a part of a straight line in the length direction of the conductive rod-shaped member having a paneling property.
- a contact portion that contacts the power supply land of the power supply terminal is positioned in the vicinity of a distal end portion that is bent outward in the circumferential direction around a part of the rod-shaped straight line in the axial length direction and extends;
- the movable part and the contact part of the power supply terminal are shown in Figs. 8 and 9 in a state where they can be moved on an arc with elastic deformation along the plane direction substantially perpendicular to the center position of the operating center of gravity. It is arranged as follows.
- the power supply terminal 4 shown in FIG. 8 has a substantially V-shape in which the contact portion 4d is positioned at the tip, and has a structure in which the twisted portion 4f3 ⁇ 4r is disposed in a linear portion on both sides thereof.
- the power supply terminal structure is simpler, more compact, and has no danger of contact between the plus and minus poles, facilitating assembly during mass production and stabilizing energization during mounting.
- the arrangement of the power supply terminals 4 shown in FIG. 8 is a structural design that minimizes the height in the vertical direction on the circuit board surface when the vibration motor 1 is assembled.
- the interval N of the height dimension between the outer periphery of the housing case 3 and the terminal block flat portion 5c shown in FIG. 8 in the second embodiment is compared with the interval N of the conventional height dimension shown in FIG. But as you can see, space savings have been achieved. As a result, the height of the entire vibration motor can be minimized.
- the concave portion 5b is formed with an inclined surface which becomes a vertex at the ridge line H, and when mounted on the circuit board 50, the (+) and (1) of the pair of power supply terminals 4 are movable, and Even if the movable part 4c falls down inside, the contact part 4d stops at the position where it contacts the inclined surface and is stored. As a result, the mounting efficiency on the circuit board 50, that is, the interval N between the height dimensions is minimized. In addition to this, it is possible to maintain a constant elastic pressing force against the power supply land without being affected by external influences such as swinging.
- the elastically deformable rod member is elastically deformed along a substantially vertical plane centering on the straight line in the length direction of the torsionally deformed rod-shaped member.
- the movable part 4c of the power supply terminal 4 is provided so as to be movable on a circular arc with a.
- the movable portion 4c has a portion protruding outward from the flat portion 5c of the terminal block 5 and is pressed against the power supply land 55 of the circuit board 50 as shown in FIG. While being stored in the recess 5b of the terminal block 5.
- the flat portion 5c of the terminal block 5 is held in contact with the board plane of the circuit board 50 (position of the power supply land 55) in face-to-face relation.
- the vibration motor 1 originally generates a whirling force due to the rotational movement of the eccentric weight 6 attached to the rotating shaft 2, and swings as shown in FIGS. 10 and 11. That is, due to the rotation operation, the entire vibration motor 1 oscillates in the outer circumferential direction in which the weight rotates around the vibration operation center point G described above.
- the swinging state of the power supply terminal due to the vibration operation at this time is shown in the enlarged drawing of a circular frame in each of FIGS.
- the contact portion 4d of the power supply terminal 4 When viewed from the top side in FIG. 10 and the front side shown in FIG. 11, the contact portion 4d of the power supply terminal 4 has a very small amount of movement of the amplitude P4 and the amplitude P5 around the vibration operation center of gravity G. Rocks. However, since the distance between the circuit board 50 and the housing case 3 is kept constant by the terminal block flat portion 5c as described above, the contact portion 4d of the power supply terminal 4 that does not move much with the amplitude P6 is actually used. The total amount of movement due to rocking is the sum of only P4 + P5. Further, the distance L2 between the fulcrum F of the power supply terminal 4 shown in FIG.
- the action point E is located closer to the vibration operation center of gravity G, and its movable direction is arranged together along a plane substantially perpendicular to the rotation axis including the vibration operation center of gravity G. Is the least.
- the power supply terminal itself has a panel structure in which the panel elasticity can be sufficiently obtained by the torsion portion 4f.
- the contact portion 4d can always be connected with a constant pressing force while the 5c is in direct contact. This suppresses the sliding movement that causes the contact wear mark without displacing the contact portion 4d in the panel elasticity direction (thickness direction of the circuit board) due to the swing, and finally the power supply on the circuit board side Does not adversely affect the land.
- the fulcrum F and the operation point E of the power supply terminal movable section 4c are With respect to a perpendicular line Y drawn on the circuit board from the operation center of gravity G, it is arranged within an angle range of about 45 degrees on one side and about 90 degrees on both sides with respect to the plane direction of the circuit board 50 from the vibration operation center of gravity G.
- the power supply terminal structure including the terminal block can be arranged more compactly and efficiently.
- the present invention can be variously modified based on the technical ideas of the various embodiments shown here, and the vibration generating mechanism is not limited to the cylindrical coreless motor of the present embodiment. Needless to say, it can be applied to various electric motors having a rotating shaft. If the holder is insulative, the holder need not necessarily be made of an elastic material. If the arrangement relationship between the circuit board and the terminal block flat portion can be maintained, it is necessary to mount the holder on the vibration motor side. Absent.
- Multi-function mobile phones such as camera-equipped mobile phones that require a vibration function, wristwatch-type PHS, in-house compact wireless communication devices and other mopile communication devices, and portable PDA and other devices It is installed in various electronic devices including various information communication terminal devices, game machine controllers with bodily sensations, and electronic toys such as pocket game machines.
- FIG. 1 is a schematic perspective view showing an arrangement direction of power supply terminals of a vibration motor according to a first embodiment.
- FIG. 2 is a three-sided view showing the entire vibration motor according to the first embodiment.
- FIG. 3 is a schematic diagram showing a movable direction of a power supply terminal of the vibration motor according to the first embodiment and a relative positional relationship with a circuit board.
- FIG. 4 is a schematic diagram showing a relative positional relationship among a vibration operation center of gravity of the vibration motor according to the first embodiment, a power supply terminal movable portion fulcrum and an action point, and a circuit board.
- FIG. 5 is a schematic diagram when the vibration operation of the vibration motor according to the first embodiment is viewed from above, and an enlarged view of a contact point.
- FIG. 6 is a schematic diagram of a vibration operation of the vibration motor according to the first embodiment when viewed from the front side, and an enlarged view of a contact point.
- FIG. 7 is a schematic diagram when the vibration operation state of the vibration motor with the holder according to the first embodiment is viewed from the front side.
- FIG. 8 is a three-sided view showing the entire vibration motor according to the second embodiment.
- FIG. 9 is a schematic diagram showing a movable direction of a power supply terminal of a vibration motor according to a second embodiment, and a relative positional relationship with a circuit board.
- FIG. 10 is a schematic view of the vibration operation of the vibration motor according to the second embodiment when viewed from above, and an enlarged view of a contact point.
- FIG. 11 is a schematic diagram of the vibration operation of the vibration motor according to the second embodiment when viewed from the front side, and an enlarged view of a contact point.
- FIG. 14 is a schematic diagram of a vibration operation of a conventional vibration motor having a power supply terminal structure when viewed from the front side, and an enlarged view of a contact point.
- FIG. 15 is a schematic perspective view showing a conventional vibration motor having a power supply terminal structure.
- FIG. 18 is a schematic view of the vibration operation of a conventional vibration motor having a power supply terminal structure when viewed from the front side, and an enlarged view of a contact point.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Telephone Function (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/572,601 US7525225B2 (en) | 2003-09-09 | 2004-08-17 | Vibration generating motor |
CN2004800319647A CN1875533B (zh) | 2003-09-09 | 2004-08-17 | 产生振动用电动机 |
EP04771719A EP1667312A1 (en) | 2003-09-09 | 2004-08-17 | Vibration generating motor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-317576 | 2003-09-09 | ||
JP2003317576A JP4517059B2 (ja) | 2003-09-09 | 2003-09-09 | 振動発生用電動機 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005027317A1 true WO2005027317A1 (ja) | 2005-03-24 |
Family
ID=34308490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/011758 WO2005027317A1 (ja) | 2003-09-09 | 2004-08-17 | 振動発生用電動機 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7525225B2 (ja) |
EP (1) | EP1667312A1 (ja) |
JP (1) | JP4517059B2 (ja) |
KR (1) | KR100808826B1 (ja) |
CN (1) | CN1875533B (ja) |
TW (1) | TW200511694A (ja) |
WO (1) | WO2005027317A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8545323B2 (en) * | 2006-06-30 | 2013-10-01 | Logitech Europe S.A. | Video game controller with compact and efficient force feedback mechanism |
WO2008089175A1 (en) * | 2007-01-17 | 2008-07-24 | Brookstone Purchasing, Inc. | Vibration apparatus and motor assembly therefore |
JP5263368B2 (ja) * | 2011-03-08 | 2013-08-14 | 株式会社豊田自動織機 | 電動圧縮機、及び電動圧縮機の組付方法 |
JP5817328B2 (ja) | 2011-08-22 | 2015-11-18 | カシオ計算機株式会社 | 時計モジュールおよび電子機器 |
CN102832738B (zh) * | 2012-09-14 | 2015-04-22 | 徐达 | 一种振动电机用偏心块 |
KR101939216B1 (ko) * | 2014-01-08 | 2019-01-18 | 한온시스템 주식회사 | 전동 압축기의 고전압 터미널 장치 |
US11245319B2 (en) * | 2017-01-13 | 2022-02-08 | Mitsumi Electric Co., Ltd. | Vibration actuator, wearable terminal, and incoming call notification function device |
JP7255976B2 (ja) | 2018-05-22 | 2023-04-11 | ミネベアミツミ株式会社 | モータ |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH11136327A (ja) * | 1997-10-30 | 1999-05-21 | C I Kasei Co Ltd | 携帯無線機器における振動発生装置とプリント配線基板との電気的接続構造 |
JP2000201464A (ja) * | 1999-01-07 | 2000-07-18 | Matsushita Electric Ind Co Ltd | Dcブラシレスファン |
JP2000286296A (ja) * | 1999-03-30 | 2000-10-13 | Seiko Epson Corp | 半導体装置およびその製造方法 |
JP2002044904A (ja) * | 2000-07-21 | 2002-02-08 | Mabuchi Motor Co Ltd | 小型モータ |
JP2003174753A (ja) * | 2001-12-04 | 2003-06-20 | Namiki Precision Jewel Co Ltd | 小型モータ及び小型振動モータ並びに携帯用情報機器 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0955762B1 (en) | 1997-10-31 | 2007-05-02 | Mitsubishi Denki Kabushiki Kaisha | Vibrator attaching structure |
JP2000078790A (ja) * | 1998-08-28 | 2000-03-14 | Matsushita Electric Ind Co Ltd | 電磁振動体及びそれを用いた電池駆動機器 |
JP3349118B2 (ja) * | 1999-07-23 | 2002-11-20 | 日本電産コパル株式会社 | モータ及び携帯電話 |
JP3408470B2 (ja) | 1999-09-24 | 2003-05-19 | 埼玉日本電気株式会社 | 電子機器 |
JP3722067B2 (ja) * | 2002-01-29 | 2005-11-30 | 松下電器産業株式会社 | 電磁振動体を用いた電池駆動機器 |
TW540838U (en) * | 2002-05-22 | 2003-07-01 | Benq Corp | Electrical connector and mobile phone using the same |
JP4159441B2 (ja) * | 2003-10-06 | 2008-10-01 | 三洋電機株式会社 | 小型モータ |
-
2003
- 2003-09-09 JP JP2003317576A patent/JP4517059B2/ja not_active Expired - Fee Related
-
2004
- 2004-08-17 WO PCT/JP2004/011758 patent/WO2005027317A1/ja not_active Application Discontinuation
- 2004-08-17 US US10/572,601 patent/US7525225B2/en not_active Expired - Fee Related
- 2004-08-17 CN CN2004800319647A patent/CN1875533B/zh not_active Expired - Fee Related
- 2004-08-17 KR KR1020067006759A patent/KR100808826B1/ko not_active IP Right Cessation
- 2004-08-17 EP EP04771719A patent/EP1667312A1/en not_active Withdrawn
- 2004-08-20 TW TW093125098A patent/TW200511694A/zh not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11136327A (ja) * | 1997-10-30 | 1999-05-21 | C I Kasei Co Ltd | 携帯無線機器における振動発生装置とプリント配線基板との電気的接続構造 |
JP2000201464A (ja) * | 1999-01-07 | 2000-07-18 | Matsushita Electric Ind Co Ltd | Dcブラシレスファン |
JP2000286296A (ja) * | 1999-03-30 | 2000-10-13 | Seiko Epson Corp | 半導体装置およびその製造方法 |
JP2002044904A (ja) * | 2000-07-21 | 2002-02-08 | Mabuchi Motor Co Ltd | 小型モータ |
JP2003174753A (ja) * | 2001-12-04 | 2003-06-20 | Namiki Precision Jewel Co Ltd | 小型モータ及び小型振動モータ並びに携帯用情報機器 |
Also Published As
Publication number | Publication date |
---|---|
JP4517059B2 (ja) | 2010-08-04 |
US7525225B2 (en) | 2009-04-28 |
KR100808826B1 (ko) | 2008-03-03 |
CN1875533B (zh) | 2011-07-06 |
KR20060104991A (ko) | 2006-10-09 |
CN1875533A (zh) | 2006-12-06 |
TWI332744B (ja) | 2010-11-01 |
EP1667312A1 (en) | 2006-06-07 |
JP2005086924A (ja) | 2005-03-31 |
US20070278871A1 (en) | 2007-12-06 |
TW200511694A (en) | 2005-03-16 |
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