CN2590256Y

CN2590256Y - Electric motor

Info

Publication number: CN2590256Y
Application number: CN02292564U
Authority: CN
Inventors: 铃木和寿; 生川升
Original assignee: Nidec Copal Corp
Current assignee: Nidec Copal Corp; Nidec Copal Electronics Corp
Priority date: 2001-12-14
Filing date: 2002-12-13
Publication date: 2003-12-03
Anticipated expiration: 2012-12-13
Also published as: JP3875091B2; TWI316779B; CN1282290C; KR20030051292A; TW200301036A; JP2003189534A; KR100798829B1; CN1424800A

Abstract

The utility model comprises a motor (1) in which grounding parts (14) of a pair of wire connecting terminals (8) clamp a central axis (P) of a motor casing. The intervals (L) of the grounding parts (14) are larger than the diameter of the motor casing (2). Thereby, the positioning stability can be improved when the motor (1) is installed. Additionally, the utility model can avoid the influence on the shape of a motor casing (2) as much as possible, and simultaneously, the utility model can expend the elastic deflection (travel range) of the wire connecting terminals (8) when the motor is installed. Thereby, necessary elastic forces are fully applied for pressing electric terminals of a device by the connecting terminals (8), the electric contact changes into reliability, and the height size of the motor (1) after the elastic deformation of the wire connecting terminals are made as far as possible closely to the outer diameter size of an electric outer casing (2). Therefore, the utility model is suitable for the motors with small installing size and facilitates thin-shaped model for mobile telephones, etc.

Description

Motor

Technical field

The utility model relates to a kind of motor, especially relate to a kind of motor that is used as the vibration source of vibration alarm, for example, be used as the miniature motor of the body sense function of the amusement equipment of call function, recreation etc. in mobile communication equipment (for example mobile phone).

Background technology

In the past, as the technology in such field, the flat 11-136091 communique of Japan Patent Publication Laid-Open is arranged, it is contained that the spy opens flat 2001-37147 communique.The described miniature motor of these communiques is the motor that is assembled into the communication apparatus of mobile phone etc. easily, and counterweight is fixed in its output shaft, and binding post is fixed in the cylindrical shape motor casing by bearing bracket.Binding post is made of the sheet spring, when motor mounting needn't soldering during at circuit substrate, in the hope of improving the device assembles operating efficiency.

; there is following point in aforesaid motor in the past: motor mounting is during to the circuit substrate that is arranged in the equipment; binding post becomes the state that enters motor case bottom, because binding post is arranged on such position, has the problem that is difficult to make the attenuation of mobile phone equal thickness.

Study by aforesaid problem in order to solve for the utility model, and the purpose of this utility model is: a kind of motor is provided, especially provides a kind of when can suppressing setting height(from bottom), can promote to become the motor of slimming of the equipment of mounting object thing.

Summary of the invention

Motor of the present utility model is a kind of like this motor, described motor is that the front end of motor body of columnar motor casing is outstanding from substance making output shaft, to be fixed on the motor body from the outside cardinal extremity of supplying with the pair of terminal of regulation electric power, it is characterized in that, in above-mentioned motor, in each terminal free ends of rubber-like grounding parts is set, is holding the central axis of motor casing under the arm and be located at the interval of grounding parts of position, the left and right sides bigger than motor casing diameter.

In above-mentioned motor, adopt the result of rubber-like binding post to be, when making motor be loaded on equipment such as mobile phone, needn't soldering, can obtain the raising of device assembles operating efficiency.And the central axis of the relative motor casing of grounding parts of pair of terminals is also established, and the interval between grounding parts is bigger than the diameter of motor casing, motor stability in place in the time of can improving motor mounting.And, can be in the profile influence of avoiding motor casing as far as possible, elastic deformation amount's (path increment) of binding post when increasing motor is installed.Thus, binding post can be given full play to the essential elastic force of contact arrangement electric terminal, and electric contact is reliable.And, such as described above, Yi Bian be to consider to give binding post enough path increments at interval between grounding parts, Yi Bian avoid the influence of motor casing during strain as far as possible.Therefore, when motor mounting, the height dimension that can make the motor after the binding post strain is as far as possible near the size of motor casing.Consequently, can realize the motor that the setting height(from bottom) size is little, this helps the equipment one side slimming of promotion as the mounting object thing.

Again, each binding post has the base end part that is fixed in motor body, and along with the elastic portion of extending and establishing grounding parts at free end from base end part.Be preferably, elastic portion is configured in the side of motor casing.Like this, the result who is configured in the side of motor casing as elastic portion is, elastic portion does not contact motor casing, can make it abundant distortion, thereby, can realize the motor that the setting height(from bottom) size is little, promotion equipment one side's slimming.

Again, be preferably, elastic portion is if possess part 1 of extending along the axis of output shaft and the part 2 of rearward extending by the front end bending part from part 1.Thus, can make elastic portion that appropriate elastic force takes place.

Again, be preferably, the relative output shaft of base end part is done the extension of vertical direction, and outstanding to the side of motor casing, the axis of elastic portion from base end part along output shaft extends into roughly U word shape.Binding post has along the axis of output shaft and extends into the roughly occasion of the elastic portion of U word shape, exists the installation dimension of motor to become big tendency, and therefore, elastic portion is configured in that to avoid the such side of motor casing be effective.

Again, be preferably, make counterweight off-centre be fixed in output shaft.Adopt the occasion of this spline structure, can constitute vibrating motor, especially in vibrating motor, the stability in place of motor is important.

Again, be preferably, have the carriage of rubber system to cover motor casing.Electronicly utilize counterweight when vibration, the unnecessary chatter of (for example, mobile phone) casing can not take place from equipment.

Motor of the present utility model is the high motor of versatility, can be applicable to various vibration alarming equipment.For example, as the example of vibration alarming equipment, have mobile phone, pocket electric bell, PDA etc. mobile information terminal apparatus, game station the game station of control etc.

The accompanying drawing simple declaration

Fig. 1 is the front view of the 1st execution mode of motor of the present utility model.

Fig. 2 is the vertical view of the motor of Fig. 1.

Fig. 3 is the upward view of the motor of Fig. 1.

Fig. 4 is the right side view of the motor of Fig. 1.

Fig. 5 is the left side view of the motor of Fig. 1.

Fig. 6 is the oblique view that is applicable to the binding post of motor of the present utility model.

Fig. 7 is the front view that the carriage of rubber system is contained in the electric motor state of Fig. 1.

Fig. 8 is the vertical view of the state of the carriage of the rubber system motor that is contained in Fig. 1.

Fig. 9 is the upward view of the state of the carriage of the rubber system motor that is contained in Fig. 1.

Figure 10 is the right side view of the state of the carriage of the rubber system motor that is contained in Fig. 1.

Figure 11 is the left side view of the state of the carriage of the rubber system motor that is contained in Fig. 1.

Figure 12 is the cutaway view of the 2nd execution mode of motor of the present utility model.

Figure 13 is the exploded perspective view of motor applications of the present utility model in mobile phone.

Figure 14 is the oblique view of motor applications of the present utility model in the terminal equipment of mobile alarm equipment.

Figure 15 is the exploded perspective view of motor applications of the present utility model in game machine.

Embodiment

Below, describe the suitable execution mode of motor of the present utility model in detail with reference to accompanying drawing.

Motor 1 of the present utility model is, making output shaft 3 is that the front end of motor body A of columnar motor casing 2 is outstanding from substance, the cardinal extremity that to supply with pair of terminals 8 of the electric power of stipulating from the outside is fixed on the motor body A, in described motor, grounding parts 14 is arranged on the free end of each binding post 8 of rubber-like, holding the central axis of motor casing 2 under the arm and be located at position, the left and right sides, the interval of the described and grounding parts 14 established is greater than the diameter of motor casing 2.

As Fig. 1-shown in Figure 5, motor 1 is by being made up of the core motor, and possesses and have the about 4mm of diameter, is about the motor body A of the columnar metallic motor casing 2 of 10mm, in the hope of miniaturization.The stator that to hold the permanent magnet composition of N, the S utmost point is fixed on the internal face of motor casing 2, and the rotor that coiling iron core has coil is taken in the inside of motor 2.At the fixing output shaft 3 by the bearing supporting of this centre of rotor, the leading section of this output shaft 3 extends, to connect the fore-end of motor casing 2.And in motor body A, resinous carriage 5 utilizes the bending of the 2a of claw portion to be fixed in the rear end of motor casing 2.

In motor casing 2, commutator is fixed on the rear end of output shaft 3, a pair of this commutator of brush sliding contact.The terminal 4 of each brush upper mounted plate shape, the rear end of each terminal 4 is outstanding from the carriage 5 that is located at motor casing 2 rear ends.And roughly half-terete counterweight 6 compresses or is pressed into the fore-end of output shaft 3, and counterweight 6 off-centre are fixed on output shaft 3.Thereby, because the rotation of output shaft 3 makes counterweight 6 swings, thereby, motor casing 2 is vibrated itself.The motor 1 of such band counterweight makes its shell vibrational energy be used in the information that user's inquiry is received in movable small wireless calling device mobile phone etc.

Here, binding post 8 is set on motor body A, is used for once implementing making being electrically connected of electric terminal 7a of terminal 4 and the regulation of circuit substrate 7.Each binding post 8 corresponding each terminal 4 is provided with, and is used for the regulation electric power of outside input is added to brush.Utilize soldering to be fixed on each terminal 4 cardinal extremity of each binding post 8, consequently, binding post 8 is fixed on the motor body A.And binding post 8 is to form with thin latch plate, and binding post 8 itself has elasticity.

Thereby as shown in Figure 1, motor configurations is on circuit substrate 7, and under this state, with not shown device cover etc., compressing into motor 1 such operation from the top according to arrow Z direction becomes possibility, there is no need electric terminal 7a is carried out soldering.This occasion, like that, strains take place in binding post 8 shown in double dot dash line, under the state of the elastic force with regulation, reliably carry out being connected of electric terminal 7a of binding post 8 and circuit substrate 7.

This binding post 8 is to form by Bending Processing with the thin latch plate that cuts into the regulation shape.This binding post 8 is as Fig. 5 and shown in Figure 6, the base end part 20 that is fixed in motor body A is arranged, extend and form U word shape roughly, have the elastic portion 30 of elastic force along the axis of output shaft 3 with output shaft 3 approximate vertical directions with the single armed status of support from this base end part 20.This base end part 20 has the installation portion 10 that is fixedly mounted on the terminal 4 that is located at motor body A by soldering S, and this installation portion 10 is so that do radially to extend along the end face of carriage 5.

At this base end part 20, have be positioned at installation portion 10 same planes on enlarged

portion

19,19 pairs of output shafts 3 of this enlarged portion are made vertical direction and extended, and are outstanding to the side of motor casing 2.And, be connected at the base end part 20 that installation portion 10 and enlarged portion 19 are formed under the state of rear end face of carriage 5, installation portion 10 is brazed in terminal 4.The elastic portion 30 of binding post 8 has: in the lower end of enlarged portion 19 inwardly under side's (to counterweight 6 sides) rectangular state of bending, and the part 1 11 of extending along the axis of rotation axis 3.And, elastic portion 30 have by the front end with part 1 11 turn back U font roughly bending part B, make along the part 2 12 of extending with the direction of part 1 11 almost parallels.Have, elastic portion 30 has the 3rd part of bending again, and its rear end from part 2 is outstanding to foreign side.

Free end side in the 3rd part 13 forms bend 13a, and the top of this bend 13a forms stretches out the grounding parts 14 that surface enforcement plating Au handles, and such grounding parts 14 is reliable with being electrically connected of the electric terminal 7a of the regulation of circuit substrate 7a.Make such elastic portion 30 to extend, then make elastic portion 30 be positioned at the position, side of motor casing from enlarged portion 19 single armed holding states.

Each binding post 8 is in the rear end of motor casing 2, is accommodated in respectively in the slit 17a (with reference to Fig. 3) with the integrally formed foot 17 of carriage 5, and the 3rd part 13 is exposed from slit 17a.Consequently, the integral body of the binding post 8 of easy breakage is exposed in the time of needn't using, and the necessary part of visual electric joint becomes easily, in the hope of improving the operation to device assembles.

As the result of the grounding parts 14 that makes binding post 8 near motor casing 2 rear ends, the held stationary of the motor 1 on circuit substrate 7 reaches good.And, because the binding post 8 that adopts bending to form, can form simple structure, inexpensive binding post 8, the result reduces in the hope of manufacturing cost.

As shown in Figure 4, at the central axis P that is holding motor casing 2 under the arm and in symmetrical position and establish grounding parts, pair of wire connection terminals 8 adopts enlarged portion 30, so the interval L of

grounding parts

14,14 is bigger than motor casing diameter R.Consequently, when motor 1 is installed on circuit substrate 7, can obtain the raising of the stability in place of motor 1.Especially, in holding the vibrating motor of counterweight, the stability in place of motor 1 is important.

Again, greater than the result of the diameter R of motor casing 2 be as the interval L that makes

grounding parts

14,14, Yi Bian avoid the influence of the profile of motor casing 2 as far as possible, Yi Bian elastic deformation amount's (path increment) of strain portion 30 can enlarge motor mounting the time.Thus, when being crimped onto the electric terminal 7a of equipment such as mobile phone when binding post 8, can make the elastic portion 30 of binding post 8 that enough elastic forces take place, make the electric connection of electric terminal 7a reliable.

And, such as described above, the interval L that grounding parts is 14,14, owing to be to consider that the elastic portion 30 of pair of wire connection terminals 8 gives enough path increments on one side, the cause of the influence of motor casing 2 when avoiding strain as far as possible on one side, therefore, when motor mounting, the setting height(from bottom) size H (with reference to Fig. 1) of the motor 1 after the strain of elastic portion 30 can be as far as possible near the outside dimension R of motor casing 2.As consequently, can realize the little motor of installation dimension H 1, thereby, can promote to become the slimming of mobile phone of an example of mounting object thing.

Again, as making elastic portion 30 be positioned at the position, side of motor casing 2, and the

elastic portion

30,30 of establishing interval C (with reference to Fig. 3) result bigger than the diameter R of motor casing 2 each other is that elastic portion 30 does not contact motor casing 2, and can make elastic portion 30 be deformed into enough elasticity.Especially, holding along the axis of output shaft 3 about employing and to extend into the roughly motor 1 of the binding post 8 of the elastic portion 30 of U font, is effective to the tendency that exists the setting height(from bottom) size to uprise.

Motor casing 2 usefulness Fig. 7 of motor body A-rubber system carriage 16 shown in Figure 11 covers.Thus, make that unnecessary vibration did not take place the shell of equipment (for example mobile phone) when motor 1 because of counterweight 6 vibration took place.

Motor of the present utility model never is limited to aforesaid content, and for example, motor 40 shown in Figure 12 has other form binding posts 41.This binding post 41 is that the thin latch plate that cuts into the regulation shape forms through Bending Processing.This binding post 41 has the base end part 42 that is fixed in motor body A, and along with extending the elastic portion 43 that has under the single armed holding state elastic force on the output shaft 3 approximate vertical directions from this base end part 42.

Each elastic portion 43 that is positioned at two sides of electronic shell 2 has the part 1 44 of extending along the axis of rotation axis 3.And elastic portion 43 has by the front end with part 1 44 to be turned back into the bending part B of U word shape or V word shape, shows the part 2 45 of extending with the 1st part 44 parallel directions greatly.This part 2 45 has the length roughly same with part 1 44.And, more outstanding than the rear end 47 of motor body A from the rear end of part 2 45 to the 3rd outstanding part 46 of foreign side.The free side of the 3rd part 46 forms bend 46a, forms at the top of bend 46a and implements the grounding parts 49 that plating Au handles on the surface of stretching out.

More than, the execution mode of motor of the present utility model has been done all explanations, and the various vibration alarming equipment that can carry motor 1,40 have been described.As shown in Figure 13, take in the internal base plate 51 that various electronic component is installed, on this internal base plate 51, carry the motor 1,40 of counterweight in the inside of mobile phone 50 that is the 1st example of vibration alarming equipment.As shown in Figure 14,, take in the internal base plate 61 that various electronic component is installed, on this internal base plate 61, carry the motor 1,40 of band counterweight in the inside of mobile information terminal apparatus 60 that is the pocket electric bell, PDA etc. of the 2nd example.As shown in figure 15,, take in the internal base plate 71 that various electronic component is installed, on this internal base plate 71, carry the motor 1,40 of band counterweight in the inside of game station 70 that is the control, turnout control wheel etc. of the video game apparatus having memory cards of the 3rd example.

According to aforementioned utility model, yes can change for execution mode of the present utility model relevant many methods.Such variation is not the variation that breaks away from design of the present utility model and scope, and to those skilled in the art, conspicuous whole improvement comprises within the scope of the following claims.

Claims

1. motor, described motor ties up to and makes output shaft outstanding from having substantive motor body front end for columnar motor casing, and the cardinal extremity that will supply with pair of terminals of regulation electric power from the outside is fixed on the described motor body, it is characterized in that, in above-mentioned motor

Grounding parts is located at the free end of described each binding post of rubber-like, is holding the central axis of described motor casing under the arm and is being located at interval between the described grounding parts of its position, left and right sides greater than the diameter of described motor casing.

2. motor as claimed in claim 1, it is characterized in that, described each binding post has the base end part that is fixed on described motor body, with when extending from described base end part, described grounding parts is located at free-ended elastic portion, and described elastic portion is configured in the side of described motor casing.

3. motor as claimed in claim 2 is characterized in that, described elastic portion possesses the part 1 of extending along the axis of described output shaft and from the front end of described part 1, the part 2 of rearward extending by bending part.

4. motor as claimed in claim 2, it is characterized in that, described base end part is made vertical direction to described output shaft and is extended, and outstanding to the side of described motor casing, and the axis of described elastic portion from described base end part along described output shaft extends into roughly U word shape.

5. motor as claimed in claim 1 is characterized in that, makes counterweight off-centre be fixed on described output shaft.

6. motor as claimed in claim 1 is characterized in that, described motor casing is covered by the carriage of rubber system.

7. a vibration alarming equipment is characterized in that, described vibration alarming equipment is loaded with the described motor of claim 5.

8. a mobile phone is characterized in that, described mobile phone is loaded with the described motor of claim 5.

9. a mobile information terminal apparatus is characterized in that, described mobile information terminal apparatus is loaded with the described motor of claim 5.

10. a game machine is characterized in that, described game machine is loaded with the described motor of claim 5.