CN1334634A

CN1334634A - Motor

Info

Publication number: CN1334634A
Application number: CN01124368A
Authority: CN
Inventors: 高桥厚德
Original assignee: Nidec Copal Corp
Current assignee: Nidec Precision Corp
Priority date: 2000-07-25
Filing date: 2001-07-24
Publication date: 2002-02-06
Anticipated expiration: 2021-07-24
Also published as: KR20020009408A; TW521476B; CN1196243C; JP4566356B2; KR100418226B1; JP2002044906A

Abstract

The end of the external terminal 8 of a motor can be inserted into the axial direction along the conductive wall 12. Upon insertion, since a positive insertion access S is formed by a terminal support part 13 projected from the guide wall part 12, while guiding the end portion of the external terminal 8 with the insertion access 8, a leading edge 8a of the external terminal 8 can be positively guided surely, up to the connection terminal 4. When further pursuing dimensional reduction of the motor 1, the smaller the dimension of each component is, the greater the contribution of this configuration of the bracket 5 will become to the assemblability of the external terminal 8.

Description

Motor

Technical field

The present invention relates to a kind of motor, particularly be built in the mobile communication machine (for example mobile phone), the miniature motor that uses as the vibration generation source of notifying from a phone call function.

Background technology

In the past,, there is the spy to open flat 11-136901 communique as the technology in this field.This miniature motor is assembled in the communicating machine such as mobile phone easily, is fixed with counterweight on its output shaft, on the housing of motor, by screw and support, is fixed with the energising joint that forwards extends.Therefore,, then when fixing motor in the circuit board, do not need solder, seek to boost productivity if utilize this energising joint made from latch plate.

In the motor in aforementioned past, such problem below existing.That is to say that energising joint (binding post) used in this miniature motor is clamped between support and the terminal block, terminal block and communication joint are filled in, easily assembling energising joint by screw.But, when being assembled in communication joint (binding post) on the support, though utilized screw,, if the diameter of motor field frame is done more for a short time, just, impel the miniaturization of motor more, just the anxiety that has the number of parts increase that operation is degenerated more.

Summary of the invention

The present invention makes in order to address the above problem, and particularly, its purpose is that the motor that can improve assembling operation and help lend some impetus to miniaturization is provided.

Motor of the present invention, front end at motor body, stretch out output shaft along tube axial direction, rear end at motor body, be provided with the support that makes the electric insulation that the jointing to brush power supply exposes, for jointing, electrical connection is with the outside binding post end that is installed in of the voltage that is provided with stipulating from the outside, it is characterized in that: support forms the through hole that jointing is drawn towards tube axial direction, the guide wall part that radially insert along the rear end face of support the end of supporting to be contained in outside binding post from the side, partly stretch out from guide wall, be contained in the rear end face of the end of outside binding post at support, radially the path of Cha Ruing has the support part that is contained in the end of outside binding post in the tube axial direction support simultaneously.

This motor is sought to improve and is contained in the assembling operation of outside binding post with respect to the jointing of drawing from the through hole of support.That is to say that the end that is contained in outside binding post can radially be inserted along the guide wall part.So, in this insertion, owing to divide formation certain insertion path by the binding post support sector of partly stretching out from guide wall, so on the one hand available insertion path guiding is contained in the end of outside binding post, can positively will be contained in the front end guidance of outside binding post on the one hand to the jointing place.Also have, when assembling operation, keep support,, become and be easy to assemble so can keep the binding post that is contained in the outside and the status of electrically connecting of jointing with respect to support owing to be contained in outside binding post.Have again, after the binding post that will be contained in the outside is assembled on the support, by working in coordination with of guide wall portion and binding post support part, even the occasion of load beyond adding on the binding post that is contained in the outside, also owing to be contained in the binding post of outside from the side with the support of tubular axis aspect, so the place that is electrically connected is difficult to come off, even after the binding post assembling that is contained in the outside, also be difficult to produce condition of poor in the place that is electrically connected.Therefore, in the occasion of the further miniaturization of propulsion motor, each constituent part is done fewer and fewerily, and the structure of aforementioned brackets is made very big contribution to the assembling operation that is contained in outside binding post.

Also have, be contained in outside binding post and form with spring material, simultaneously, near the marginal portion of support, preferably crooked towards the output shaft side ground that slightly meets at right angles.Like this, be contained in outside binding post rubber-like occasion, be assembled to state in the mobile phone etc. at motor, the load of tube axial direction continues to be added on the end that is contained in outside binding post.; because motor has the support part of binding post; so even when using motor, also often continued support is contained in the end of outside binding post, can will be contained in the binding post of outside and the status of electrically connecting of jointing and often continue to be held in good state.

Also have, if on output shaft fixing weight prejudicially, be suitable.Thus, use,, jointing is disconnected easily with the place that is electrically connected of the binding post that is contained in the outside, in vibrating motor, be suitable for so the structure of aforementioned brackets can be thought then by the vibration of motor itself if be considered as vibrating motor.

Below, the preferred form of implementation that reaches with reference to the accompanying drawings according to motor of the present invention elaborates.

Brief description

Fig. 1 is an end view, and it illustrates a kind of form of implementation of the motor relevant with the present invention.

Fig. 2 is the bottom view of motor shown in Figure 1.

Fig. 3 is a front view, and it illustrates the support of the motor relevant with the present invention.

Fig. 4 is the profile along the IV-IV line of Fig. 3.

The perspective view of Fig. 5 for amplifying, it illustrates support and the state of the binding post that is contained in the outside before assembling as the major part of the motor relevant with the present invention.

Fig. 6 is a rearview, and it illustrates support and is contained in the state of outside binding post before assembling.

Fig. 7 is a rearview, and it illustrates support and is contained in outside binding post at the later state of assembling.

The specific embodiment

As shown in Figures 1 and 2, motor 1 is made by cored motor, has to have directly The motor body of the electric machine casing 2 that the cylindrical metal of footpath about 4mm, the about 10mm of length is done, scheme Ask miniaturization. Be fixed with the permanent magnet with N, S utmost point at the inwall of motor field frame 2 and do The stator that becomes, in the inside of motor field frame 2, admitting has at the rotor of iron core volume with coil. At the center of this rotor, be fixed with the output shaft 3 of supporting with bearing, this output shaft 3 is from along tubular axis side Stretch out to the motor body A that extends. Rear end at this output shaft 3 is fixed with commutator, A pair of brush 10 sliding-contacts are arranged on this commutator.

Also have, on the fore-end of output shaft 3, riveted joint or interference fit are slightly to become semi-cylindrical Weight 6, weight 6 is fixed on the output shaft 3 prejudicially. Therefore, by the rotation with output shaft 3 Power makes weight 6 whirlings, can make vibrating from body of motor body A. This weight of being equipped with Vibrating motor 1 can vibrate its framework in movable small radio pager and mobile phone etc., use In the user is called out signal specific.

Have again, in the rear end of motor body A, the support 5 of making of the plastics of electric insulation is set. As Fig. 3 and shown in Figure 4, each brush 10 is received within the support 5, on each brush 10, Be fixed with the tabular jointing 4 that extends along tube axial direction, each jointing by solder or riveted joint 4 front end is outwards drawn towards tube axial direction from the through hole 11 (referring to Fig. 5) that is located on the support 5. Also Have, brush 10 is by inserting each jointing 4 usefulness pressure a pair of along tube axial direction in support 5 In the left and right sides through hole 11 that extends and be fixed on the support 5.

Such as Fig. 5 and shown in Figure 6, on resinous support 5, form and make jointing 4 courts The through hole 11 that tube axial direction stretches out makes the front end of each jointing 4 with the through hole 11 about a pair of Expose. Have, support 5 has the rear end face 5a vertical with respect to tube axial direction again. This rear end face 5a Have the insertion path S that radially inserts for the end that will be contained in outside binding post 8, insert at this Enter and dispose through hole 11 on the path S. Also have, when being contained in 8 insertion of outside binding post, this inserts Enter path S, by support to be contained in the guide wall part 12 of outside binding post 8 from both sides, along tubular axis The direction support is contained in the binding post of outside binding post 8 and supports part 13 and will insert a path S left side Part on the right side between wall part 14 form.

Guide wall part 12 about a pair of is integrally formed with support 5, simultaneously, and along rear end face 5a The marginal portion be parallel to radially and extend, and support to be contained in one side of the end of outside binding post 8 The side. Have again, in support 5, in the centre of left and right guide wall part 12, between formation Wall part 14 is used the side of the another side of the end of wall part 14 support binding posts 8 around here. Therefore, Owing to the spacing of guide wall part 12 and a wall part 14 is made and is contained in the binding post section of outside Divide the width of 8 end about equally, and insert path S and be contained in outside binding post 8 The width correspondence is so after being contained in 8 insertions of outside binding post, can make to be contained in outside binding post 8 The fit-up gap of side diminish.

Have, binding post supports that part 13 and support 5 are integrally formed again, simultaneously, and from rear end face 5a Beginning is made the roughly thickness that only is installed in outside binding post 8 and is floated, and forms from each guide wall Part 12 is stretched out towards interior direction. Thus, form outside the connecing that be contained in of pressing plate shape from above The planar section of the terminal 8 and path S that inserts can make the tube axial direction that is contained in outside binding post 8 The fit-up gap diminish.

By adopting such insertion path S, then as shown in Figure 7, be contained in outside binding post 8 The end can radially insert along guide wall part 12, and when it inserts, also can by from The binding post that guide wall part 12 is stretched out supports that part 13 is directed to. So, make taper shape The coupling part 8a that is contained in outside binding post 8 is installed in outside binding post 8 and fills in, until Contact with jointing, and continue to keep this state, in the company that is contained in outside binding post 8 Meet part 8a and carry out solder with the place of electrical connection of jointing 4. Adopt such insertion path S, Can seek when assembling, to keep simply and be contained in being electrically connected of outside binding post 8 and jointing 4 Connect state, improve widely the easiness of assembling.

Also have, being contained in outside binding post 8 usefulness thickness is the spring material formation of 0.15mm, simultaneously, Near the lower edge part of support 5, towards the side of output shaft 3, bend to roughly Cheng Zhi The angle, and on the free end that is contained in outside binding post 8, be arranged on and plate Au (copper) on the surface The grounded part 16 (referring to Fig. 1) of processing. Like this, has elasticity at the binding post 8 that is contained in the outside Occasion, if piezoelectricity motivation 1 from above makes the line of grounded part 16 and mobile phone etc. Road plate contact, the elastic part 8A that then is contained in outside binding post 8 will be crooked shown in double dot dash line, Its result is that at solder part P place, in the end that is contained in outside binding post 8, load just Constantly along the directive effect (referring to Fig. 1) of the arrow B of tube axial direction.

, because having binding post, motor 1 supports part 13, when using motor 1, The end that is contained in outside binding post 8 is often supported constantly, so can continue well to protect Hold the status of electrically connecting that is contained in outside binding post 8 and jointing 4. Especially, with electronic The occasion that machine 1 uses as vibrating motor, if consider to pass through the vibration from body of motor 1, Jointing 4 disconnects easily with the place (solder part P) that is electrically connected that is contained in outside binding post 8, So optimum is used in the vibrating motor of motor body A sustained vibration.

Like this, even after the binding post 8 that is contained in the outside is with respect to support 5 assemblings, be electrically connected Place (solder part (Ha Application ダ) P) on also be difficult to produce bad situation, help to keep The quality of goods. Therefore, in the occasion of the further miniaturization of propulsion motor 1, each consists of zero Part is done more and more littlelyr, and the structure of aforementioned brackets 5 is to being contained in the assembling operation of outside binding post 8 Property is made very big contribution.

According to motor of the present invention since as top formation, so can obtain following such Effect. That is to say that the front end at motor body stretches out output shaft along tube axial direction, at electricity The rear end of engine body is provided with the support that makes the electric insulation that exposes to the jointing of brush power supply, For jointing, be electrically connected the binding post that is installed in the outside with the voltage that is provided with stipulating from the outside End, support form through hole that jointing is drawn towards tube axial direction, from the side support to be contained in outside The guide wall part that radially insert along the rear end face of support the end of the binding post of section, from guide wall That part is stretched out, as to be contained in outside binding post end the rear end face of support radially insert logical The road has the support part that is contained in the end of outside binding post in the tube axial direction support simultaneously, by This has improved assembling operation, helps lend some impetus to miniaturization.

Claims

1. motor, front end at motor body, stretch out output shaft along tube axial direction, rear end in the aforementioned electric engine body, be provided with the support that makes the electric insulation that the jointing to brush power supply exposes, for aforementioned jointing, electrical connection is with the outside binding post end that is installed in of the voltage that is provided with stipulating from the outside, it is characterized in that: aforementioned brackets forms: the through hole that aforementioned jointing is drawn towards tube axial direction, support the guide wall part that the aforementioned aforesaid end that is contained in outside binding post is radially inserted along the rear end face of aforementioned brackets from the side, partly stretch out from aforementioned guide wall, the aforesaid end of binding post that is contained in said external is at the path that the rear end face of aforementioned brackets radially inserts, and has the support part of aforesaid end that is contained in the binding post of said external in the support of aforementioned tubes direction of principal axis simultaneously.

2. motor as claimed in claim 1 is characterized by, and aforementionedly is contained in outside binding post and forms with spring material, and is simultaneously, near the marginal portion of aforementioned brackets, preferably crooked towards the aforementioned output shaft side group ground that originally meets at right angles.

3. motor as claimed in claim 1 is characterized by, fixing weight prejudicially on aforementioned output shaft.