CN213461324U

CN213461324U - Vibration motor capable of preventing FPC (flexible printed circuit) from being damaged

Info

Publication number: CN213461324U
Application number: CN202022519335.8U
Authority: CN
Inventors: 不公告发明人
Original assignee: Sichuan Awa Seimitsu Electric Co ltd
Current assignee: Sichuan Awa Seimitsu Electric Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-06-15
Anticipated expiration: 2030-11-04

Abstract

The utility model belongs to the technical field of the vibrating motor, specifically a prevent vibrating motor of FPC damage, including last casing, apron and FPC, go up the casing and apron lock formation vibrating motor inner chamber, the integrative extension of apron sets up the extension board, the extension board is located vibrating motor's outside, the fixed dress of FPC one end is pasted and is placed in the vibrating motor inner chamber on the apron, the FPC other end extends the outside of extension board along the direction of extension board, be equipped with the damage prevention portion between FPC and the extension board, the damage prevention portion is greater than the length of extension board at the length of FPC extension direction, the utility model provides a pair of prevent vibrating motor of FPC damage can prevent that FPC from receiving the damage when bending, and FPC is fixed more firm simultaneously.

Description

Vibration motor capable of preventing FPC (flexible printed circuit) from being damaged

Technical Field

The utility model belongs to the technical field of the vibrating motor, especially, relate to a vibrating motor who prevents FPC damage.

Background

With the development of communication technology, more and more electronic products enter people's lives, especially portable consumer electronic products, such as mobile phones, handheld game consoles or handheld multimedia entertainment devices, and in these portable consumer electronic products, vibration motors are generally used for vibration feedback, such as incoming call prompts of mobile phones, vibration feedback of game consoles, and the like.

The existing vibration motor is often connected with an external power supply through an FPC (flexible printed circuit), when the FPC is assembled on the vibration motor and used in the integral vibration motor, the FPC needs to be bent, pulled and the like, the FPC is likely to contact a hard material cover plate of the vibration motor to be damaged when the FPC is bent and pulled, and the risk that the FPC is peeled and damaged can also occur if the FPC is not firmly fixed during the assembly of the FPC.

Disclosure of Invention

An object of the utility model is to provide a prevent vibrating motor of FPC damage to solve the FPC of current vibrating motor and buckle the technical problem that damage, FPC are fixed not firm damage.

In order to achieve the technical purpose, the utility model discloses use following technical scheme:

the utility model provides a prevent vibrating motor of FPC damage, which comprises an upper housing, apron and FPC, upper housing and apron lock form the vibrating motor inner chamber, the integrative extension of apron sets up the extension board, the extension board is located vibrating motor's outside, the fixed dress of FPC one end is placed in the vibrating motor inner chamber on the apron, the FPC other end extends the outside of extension board along the direction of extension board, be equipped with the damage prevention portion between FPC and the extension board, the damage prevention portion is greater than the length of extension board at the length of FPC extending direction.

Furthermore, the length of the damage prevention part in the extending direction is larger than 0.3mm of the edge of the extending plate and smaller than the external extending length of the FPC, the width of the damage prevention part is equal to that of the FPC, and the width of the damage prevention part is smaller than or equal to that of the extending plate.

Further, the damage prevention part includes a mylar sheet or a double-sided tape.

Furthermore, a slotted hole is formed in the middle of the overlapped part of the FPC and the extension board.

Further, the damage preventing part does not cover the slot hole.

Furthermore, a protection part is arranged at the overlapped part of the FPC and the extension plate, the protection part penetrates through the slotted hole to reach the surface of the extension plate, and the protection part covers the slotted hole comprehensively.

Furthermore, the tail end of the other end of the FPC is an external electric end, the edges of two sides close to the external electric end are provided with protrusions, the protrusions on the two sides and two sides of the external electric end form grooves, and the grooves and the protrusions are used for assembling and positioning the external electric end of the FPC.

Furthermore, the FPC is provided with reinforcing ribs along the edge positions of two sides of the extending direction of the FPC, and the reinforcing ribs comprise copper foils.

Further, the reinforcing rib overlaps the damage prevention portion.

Further, the reinforcing ribs extend to the external power connection end, and the width of the reinforcing ribs arranged in the protrusions is larger than the width of the reinforcing ribs on two sides of the FPC.

The utility model provides a pair of prevent vibrating motor of FPC damage has following beneficial effect:

1. the utility model provides a pair of prevent vibrating motor of FPC damage, FPC are fixed in the one side of apron and set up the damage portion of preventing, play the buffering guard action when FPC bends and contacts the apron edge to prevent that FPC from receiving the damage when bending.

2. The utility model provides a pair of prevent vibrating motor of FPC damage, FPC have add the slotted hole structure in extension board position, and it adds the point to form FPC reinforcement point to glue through the slotted hole for it is more firm to fix between FPC, apron, the glue three, prevents that FPC from droing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.

Fig. 1 is a schematic perspective view of a vibration motor for preventing damage to an FPC.

Fig. 2 is a schematic view of a vibration motor flip view angle three-dimensional structure for preventing FPC damage.

Fig. 3 is an enlarged schematic view of a portion a in fig. 1.

Fig. 4 is an enlarged schematic view of part B in fig. 1.

Fig. 5 is a schematic perspective view of another embodiment of a vibration motor for preventing damage to an FPC.

Reference numerals: 100-upper casing, 200-cover plate, 201-extension plate, 300-FPC, 301-damage prevention part, 302-reinforcing rib, 303-slotted hole, 304-protrusion, 305-groove, 306-electric connection end and 400-protection part.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention will be combined below to describe the technical solution in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1

Referring to fig. 1 to 5, a vibration motor for preventing damage to an FPC includes an upper housing 100, a cover plate 200, and an FPC300, where the upper housing 100 is a cylinder with an opening at one end, and includes a top wall (not labeled) and a circular wall (not labeled) bent and extended from the edge of the top wall by ninety degrees, the edge of the free end of the circular wall of the upper housing 100 is at least uniformly provided with two slots (not labeled), the cover plate 200 is disc-shaped, the edge of the cover plate 200 is provided with at least two clamping platforms (not labeled) corresponding to the slots of the upper housing 100, the upper housing 100 and the cover plate 200 are correspondingly and fastened with each other through the slots and the clamping platforms, so that the relative positions of the upper housing and the cover plate do not shift when the vibration motor rotates, the fastened upper housing 100 and the cover plate 200 form an inner cavity of the vibration motor, the internal components of the vibration motor are accommodated in the inner cavity of the vibration motor, the upper housing, the upper case 100 and the cover plate 200 are firmly fixed.

The integrative extension of apron 200 sets up extension board 201, and extension board 201 is connected the edge that sets up at apron 200, and extension board 201 is rectangular shape, and after upper casing 100 and apron 200 lock, extension board 201 is located vibrating motor's outside, and apron 200 is equipped with structures such as recess, arch towards the internal surface of inner chamber one side, and the position that upper casing 100 corresponds extension board 201 is equipped with breach (not marked).

FPC300 one end is fixed to paste and is pasted on the apron and place in the vibrating motor inner chamber, FPC is Flexible Printed Circuit board (Flexible Printed Circuit), FPC is a Printed Circuit board that polyimide or polyester film made as the substrate, FPC300 other end extends the outside of extension board 201 along the direction of extension board 201, FPC300 one end sets up to inside and connects electric and stiff end (not shown), FPC300 other end sets up to outside electrical connection end 306, be provided with the pad on the electrical connection end 306, FPC is connected with external power source electricity through electrical connection end 306.

The FPC300 is led out from the upper casing and fixed with the upper end face of the extension plate 201, the fixing mode can be glue bonding or double-faced glue bonding and the like, an anti-damage portion 301 is arranged between the FPC300 and the extension plate 201, the anti-damage portion 301 extends out of the outer side of the extension plate 201 from the free end edge of the extension plate 201, namely the length of the anti-damage portion 301 in the extension direction of the FPC300 is larger than that of the extension plate 201, when the vibrating motor is used, the FPC is bent or pulled to contact with the edge of a cover plate when being connected with an external power supply, and the anti-damage portion 301 plays a role in buffering protection, so that the FPC is prevented from being damaged when being bent.

In this embodiment, the whole vibration motor may be flat, oval, rectangular, or other polygonal shape, which is not limited in this embodiment, as long as the vibration motor uses the FPC to connect with the external power supply, the FPC may be damaged by bending, and the damage risk of the FPC being damaged during bending is solved by the technical solution of the embodiment of the present disclosure, that is, by using the damage prevention portion 301.

Referring to fig. 3 and 4, the length of the damage prevention portion 301 in the extending direction is 0.3mm greater than the edge of the extending board and less than the external extending length of the FPC. The FPC300 is thickened and reinforced at the damage-proof part 301 when being bent towards one side of the cover plate, so that the FPC is prevented from being damaged when contacting the hard material cover plate, and the bent part of the FPC close to the edge of the cover plate is prevented from being torn or scratched. The width of the damage prevention portion 301 is equal to the width of the FPC300, and the width of the damage prevention portion 301 is less than or equal to the width of the extension board 201. The damage prevention part 301 comprises a flexible mylar tab or a double-sided adhesive tape, so that the FPC and the cover plate can be bonded and fixed, and the risk of breakage and damage of the FPC and a hard material part at the joint can be avoided. When the damage prevention part 301 is a double-sided tape, the best set length of the damage prevention part 301 is 0.3mm-0.5mm in order to prevent the exposed part of the damage prevention part 301 of the external part of the FPC from being adhered with impurities by the double-sided tape. The damage prevention portion 301 can also be made of other soft materials, so that the risk of breaking and damaging the connection between the FPC and the hard material component is avoided.

A slotted hole 303 is formed in the middle of the superposed part of the FPC300 and the extension plate 201, the slotted hole 303 is oval, circular or other polygons, the slotted hole 303 is a through hole in the FPC, glue flows into the slotted hole 303 when the FPC and the extension plate 201 are fixed, a plurality of reinforcing points are generated, the contact area of the glue and the cover plate 200 is increased, the FPC300, the cover plate 200 and the glue are integrated, the FPC300 and the cover plate 200 are more firmly attached, and the FPC is prevented from falling off.

The damage prevention part 301 is arranged between the FPC300 and the extension board 201, the damage prevention part 301 does not cover the slot 303, namely, a slot (not shown) similar to the FPC is arranged in the middle of the damage prevention part 301, and the slots of the slot FPC300 of the damage prevention part 301 are fused into a slot, so that glue on the upper layer of the FPC can flow through the slot and finally contact with the cover plate 200.

FPC300 sets up strengthening rib 302 along its extending direction's both sides border position, FPC300 extending direction's middle part sets up and is used for electrically conductive winding displacement, the winding displacement both sides set up strengthening rib 302, strengthening rib 302 sets up with the winding displacement interval, do not carry out the electric conduction between strengthening rib 302 and the winding displacement, the material of strengthening rib 302 includes the copper foil, strengthening rib 302 adopts the material the same with the winding displacement to be favorable to FPC 300's processing simultaneously to practice thrift the cost, strengthening rib 302 can also adopt other flexible materials that are often used for FPC to strengthen, in order to guarantee FPC's bending strength, do not lead to the FPC fracture because of bending many times, the. FPC300 meets with extension board 201 department, and strengthening rib 302 and damage prevention part 301 coincide, and the projection coincidence of strengthening rib 302 and damage prevention part 301 at FPC300 extending direction promptly to form FPC 300's dual tear-proof, more be favorable to FPC's damage prevention and fixed, strengthening rib 302 extends to external connection end, has guaranteed the good electric effect that connects of FPC.

The tail end of the other end of the FPC300 is an external electric end, two side edges close to the external electric end are provided with protrusions 304, the protrusions 304 on the two sides are close to an electric connection end 306 at the other end of the FPC300, the protrusions 304 on the two sides and two sides of the external electric end form grooves 305, and the grooves 305 and the protrusions 304 are used for assembling and positioning the external electric end of the FPC. The reinforcing ribs 302 are arranged in the protrusions 304, the width of the reinforcing ribs 302 arranged in the protrusions 304 is larger than that of the reinforcing ribs 302 on two sides of the FPC300, the protrusions 304 are matched with the protruding columns of the client side, and the reinforcing ribs in the protrusions 304 are larger, so that the fixing performance of the external electric end of the FPC300 is better.

Example 2

Referring to fig. 5, the upper housing 100 and the cover plate 200 are fastened to form an inner cavity of the vibration motor, one end of the FPC300 is disposed in the inner cavity of the vibration motor, the other end of the FPC300 extends out of the vibration motor, the FPC300 is fixed to the upper end of the extension plate 201 and is provided with a protection portion 400, and the protection portion 400 covers the slot 303 of the FPC. Shield 400 is a curable glue or other adhesive. Make FPC300, apron 200 combine fixedly as an organic whole through protection part 400, let FPC300 and the laminating of apron 200 more firm, prevent that FPC from droing.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, but is provided for the purpose of facilitating understanding the method and the core concept thereof, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a prevent vibrating motor of FPC damage, which comprises an upper housing, apron and FPC, a serial communication port, upper housing and apron lock form the vibrating motor inner chamber, the integrative extension of apron sets up the extension board, the extension board is located vibrating motor's outside, the fixed dress of FPC one end is placed in the vibrating motor inner chamber on the apron, the FPC other end extends the outside of extension board along the direction of extension board, be equipped with between FPC and the extension board and prevent the damage portion, prevent that the damage portion is greater than the length of extension board at the length of FPC extending direction.

2. A vibration motor preventing damage to an FPC as claimed in claim 1, wherein: the length of the damage-proof part in the extending direction is 0.3mm larger than the edge of the extending plate and smaller than the external extending length of the FPC, the width of the damage-proof part is equal to that of the FPC, and the width of the damage-proof part is smaller than or equal to that of the extending plate.

3. A vibration motor preventing damage to an FPC as claimed in claim 1, wherein: the damage-preventing part comprises a Mylar film or a double-sided adhesive tape.

4. A vibration motor preventing damage to an FPC as claimed in claim 1, wherein: a slotted hole is formed in the middle of the overlapped part of the FPC and the extension board.

5. A vibration motor preventing damage of FPC as claimed in claim 4, characterized in that: the damage preventing portion does not cover the slot.

6. A vibration motor preventing damage of FPC as claimed in claim 4, characterized in that: the protection part is arranged at the superposed part of the FPC and the extension board, penetrates through the slotted hole to reach the surface of the extension board, and completely covers the slotted hole.

7. A vibration motor preventing damage to an FPC as claimed in claim 1, wherein: the tail end of the other end of the FPC is an external electric end, the edges of two sides close to the external electric end are provided with protrusions, the protrusions on the two sides and two sides of the external electric end form grooves, and the grooves and the protrusions are used for assembling and positioning the external electric end of the FPC.

8. A vibration motor preventing damage to an FPC as claimed in claim 7, wherein: and reinforcing ribs are arranged at the edge positions of two sides of the FPC along the extending direction of the FPC, and the reinforcing ribs comprise copper foils.

9. A vibration motor preventing damage to an FPC as claimed in claim 8, wherein: the reinforcing ribs coincide with the damage prevention portions.

10. A vibration motor preventing damage to an FPC as claimed in claim 8, wherein: the reinforcing ribs extend to the external power connection end, and the width of the reinforcing ribs arranged in the protrusions is larger than the width of the reinforcing ribs on two sides of the FPC.