CN205304480U

CN205304480U - Flat motor

Info

Publication number: CN205304480U
Application number: CN201521100015.1U
Authority: CN
Inventors: 李伟; 王磊; 李孟昭; 张翼峰
Original assignee: Kunshan Liantao Electronics Co Ltd
Current assignee: Kunshan Liantao Electronics Co Ltd
Priority date: 2015-12-26
Filing date: 2015-12-26
Publication date: 2016-06-08
Anticipated expiration: 2025-12-26

Abstract

The utility model relates to a flat motor, it includes an upper casing, a lower casing, a quality piece, a magnetism bowl, a magnetite, a coil, a circuit board and a spring board, the spring board has an inner circle, an outer lane and connects the elastic joining section of inner circle and outer lane, the quality piece is located the spring board to it is together fixed with the inner circle, the outer lane is supported under in on the annular wall, flat motor is still including the metal packing ring and the first insulation packing ring that lie in the lower casing, the first insulation packing ring that the first insulation packing ring circled in the metal gasket to the under bracing, the first insulation packing ring still upwards contacts the outer lane, and the metal packing ring combines with the first insulation packing ring, provides supporting role, forms the buffering, reduces the spring board and produce the noise when the vibration.

Description

Flat motor

Technical field

This utility model relates to a kind of flat motor, particularly relates to a kind of flat motor with latch plate.

Background technology

Flat motor is widely used in the electronic product such as mobile phone, panel computer, especially linear flat motor. Latch plate is generally supported by metallic elastic plate, center hollow out in order to support vibrating elements, different hollow out shapes, obtain different elasticity, it is thus achieved that different vibration forces. The bottom of the latch plate of existing flat motor is unsettled, not enough support zones, produces to form noise when vibration.

Thus, it is necessary to design a kind of new flat motor to solve the problems referred to above.

Utility model content

The purpose of this utility model there are provided a kind of flat motor having and reducing noise.

For realizing object defined above, this utility model adopts the following technical scheme that a kind of flat motor, it includes a upper casing, one lower casing, one mass, one magnetic bowl, one Magnetitum, one coil, one circuit board and a latch plate, described mass, magnetic bowl, Magnetitum, coil, circuit board and latch plate are contained in the space that upper casing and lower casing surround jointly, described upper casing has roof and the upper annular wall protruded out downwards from roof periphery, described lower casing has the diapire relative with roof and the lower annular wall upwards protruded out from diapire periphery, upper annular wall is sheathed on outside lower annular wall and contacts, described magnetic bowl is fixed on mass, described Magnetitum is fixed in magnetic bowl, described cable has welding two lead-in wires on circuit boards, described latch plate has an inner ring, the elastic joint part of one outer ring and connection inner ring and outer ring, described mass is positioned on latch plate, and it is fixed together with inner ring, described outer ring is supported in lower annular wall, described inner ring is provided with a centre bore, described magnetic bowl this centre bore of traverse, described flat motor also includes the metal washer and one first insulating washer that are positioned at lower casing, described first insulating washer is supported in downwards one first insulating washer on metal washer, described first insulating washer also upwards contacts outer ring.

As further improvement of the utility model, described metal washer and lower annular wall stick together.

As further improvement of the utility model, described upper annular wall root edge offers spaced apart some breach, and described lower annular wall apical margin is provided with the some protuberances protruded laterally, and described protuberance is contained in corresponding breach one by one.

As further improvement of the utility model, being protruding with the some lugs being contained in upper casing breach one by one outside described outer ring, described lug is supported in downwards on protuberance.

As further improvement of the utility model, described flat motor also includes one second insulating washer, and described second insulating washer is pasted onto the roof inner surface of upper casing or the end face of mass.

As further improvement of the utility model, described flat motor also includes one the 3rd insulating washer, 3rd insulating washer is pressed on downwards on outer ring, 3rd insulating washer is provided with the some chimbs protruded laterally, described chimb is contained in the corresponding breach of upper casing one by one, is also posted by downwards on the lug of latch plate.

As further improvement of the utility model, the lateral surface of described chimb, spring tab and protuberance tends to coplanar.

As further improvement of the utility model, described metal washer is fixed on lower casing also by laser weld.

As further improvement of the utility model, described inner ring is fixed together by laser weld and mass.

This utility model flat motor includes the metal washer and one first insulating washer that are positioned at lower casing, described first insulating washer is supported in downwards one first insulating washer on metal washer, described first insulating washer also upwards contacts outer ring, metal washer and the first insulating washer combine, it is provided that supporting role, form buffering, reduce latch plate and produce noise when vibration, it addition, also help damping adjusting, improve the reliability requirement of flat motor.

Accompanying drawing explanation

Fig. 1 is the schematic perspective view of this utility model flat motor.

Fig. 2 is the sectional view of this utility model flat motor.

Fig. 3 is the three-dimensional exploded view of this utility model flat motor.

Detailed description of the invention

Refer to shown in Fig. 1 to Fig. 3, this utility model flat motor 10, it includes first, second, third insulating washer 51,52,53 of upper casing 11, lower casing 12, mass 21, magnetic bowl 22, Magnetitum 23, pole piece 24, coil 31, circuit board 32, latch plate 41, a metal washer 42 of annular and annular. Mass 21, magnetic bowl 22, Magnetitum 23, pole piece 24, coil 31, circuit board 32, latch plate 41, a metal washer 42 of annular and first, second, third insulating washer 51,52,53 of annular are contained in the space that upper casing 11 and lower casing 12 surround jointly.

Upper casing 11 has roof 111 and the upper annular wall 112 protruded out downwards from roof 111 periphery, and upper annular wall 112 root edge offers spaced apart some breach 113.

Lower casing 12 has diapire 121 and the lower annular wall 122 upwards protruded out from diapire 121 periphery, diapire 121 has the horizontal supporting plate 125 protruded laterally, lower annular wall 122 apical margin is provided with the some protuberances 123 protruded laterally, protuberance 123 and breach 113 one_to_one corresponding, upper annular wall 112 is sheathed on outside lower annular wall 122, both contact, and protuberance 123 is contained in breach 113.

Mass 21 central authorities offer a solid pores 211, and magnetic bowl 22 is fixed in this solid pores 211, and Magnetitum 23 is pasted onto on the inner roof wall of magnetic bowl 22, and pole piece 24 is pasted on the lower surface of Magnetitum 23, in order to regulate the size in Magnetitum 23 magnetic field.

Coil 31 has two lead-in wires 311, is welded on circuit board 32, and is contained in magnetic bowl 22.

Circuit board 32 1 end is contained in lower casing 12, welds together with coil 31, and another end support is in gripper shoe 125, in order to weld with External cable (not shown).

Latch plate 41 includes inner ring 411, outer ring 412 and connects some connecting portions 413 of inner ring 411 and outer ring 412, and inner ring 411 is provided with a centre bore 415, and magnetic bowl 22 is centrally located in hole 415, but spaced apart with the medial wall of centre bore 415, and both do not produce to interfere. Together with inner ring 411 is pressed on mass 21, both are fixed as one also by laser weld. Outer ring 412 is supported in downwards in the lower annular wall 122 of lower casing 12, is protruding with the some lugs 416 being contained in one by one in upper casing 11 breach 113 outside outer ring 412, and lug 416 is also supported in downwards on protuberance 123 simultaneously.

Metal washer 42 is positioned in lower casing 12, sticks together with lower annular wall 122, is fixed together also by laser weld and diapire 121. First insulating washer 51 is placed on metal washer 42, and the first insulating washer 51 is higher than lower annular wall 122, thus the outer ring 412 of contact spring plate 41. In other embodiments, the first insulating washer 51 flushes with the end face of lower annular wall 122.

Second insulating washer 52 is pasted onto roof 111 inner surface of upper casing 11 or the end face of mass 21, provides buffer memory effect to mass 21.

3rd insulating washer 53 is pasted onto the upper surface of latch plate 41, and the 3rd insulating washer 53 is provided with the some chimbs 531 protruded laterally, and chimb 531 is contained in the corresponding breach 113 of upper casing 11 one by one, is posted by downwards on the lug 416 of latch plate 41 simultaneously. The lateral surface of the protuberance 123 of the chimb 531 of the second insulating washer 52, latch plate 41 lug 416 and lower casing 12 tends to coplanar, improves the outward appearance of flat motor 10.

When this utility model flat motor 10 works, external power source passes through circuit board 32, arrive coil 31, coil 31 is made to produce magnetic field, the magnetic field interaction that magnetic field produces with Magnetitum 23, the mover assembly promoting mass 21, magnetic bowl 22, Magnetitum 23 and pole piece 24 composition moves up, drive the inner ring 411 of latch plate 41 to overcome the elastic deformation force of connecting portion 413 to move up simultaneously, to extreme higher position, by the elastic restoring force of connecting portion 413, move down, so move back and forth up and down, reach vibrating effect, it is achieved that the function of flat motor 10.

This utility model flat motor 10 adopts metal washer 42 to be placed on lower casing 12, first insulating washer 51 is placed on metal washer 42, contact with latch plate 41, metal washer 42 is combined with the first insulating washer 51, it is provided that supporting role, forms buffering, reduce latch plate 41 and produce noise when vibration, it addition, also help damping adjusting, improve the reliability requirement of flat motor 10.

Although being example purpose, have been disclosed for preferred implementation of the present utility model, but those of ordinary skill in the art is it will be appreciated that when without departing from scope and spirit of the present utility model disclosed in appending claims, various improvement, increase and replacement are possible.

Claims

1. a flat motor, it includes a upper casing, one lower casing, one mass, one magnetic bowl, one Magnetitum, one coil, one circuit board and a latch plate, described mass, magnetic bowl, Magnetitum, coil, circuit board and latch plate are contained in the space that upper casing and lower casing surround jointly, described upper casing has roof and the upper annular wall protruded out downwards from roof periphery, described lower casing has the diapire relative with roof and the lower annular wall upwards protruded out from diapire periphery, upper annular wall is sheathed on outside lower annular wall and contacts, described magnetic bowl is fixed on mass, described Magnetitum is fixed in magnetic bowl, described cable has welding two lead-in wires on circuit boards, described latch plate has an inner ring, the elastic joint part of one outer ring and connection inner ring and outer ring, described mass is positioned on latch plate, and it is fixed together with inner ring, described outer ring is supported in lower annular wall, described inner ring is provided with a centre bore, described magnetic bowl this centre bore of traverse, other are characterised by: described flat motor also includes the metal washer and one first insulating washer that are positioned at lower casing, described first insulating washer is supported in downwards one first insulating washer on metal washer, described first insulating washer also upwards contacts outer ring.

2. flat motor according to claim 1, it is characterised in that: described metal washer and lower annular wall stick together.

3. flat motor according to claim 1, it is characterised in that: described upper annular wall root edge offers spaced apart some breach, and described lower annular wall apical margin is provided with the some protuberances protruded laterally, and described protuberance is contained in corresponding breach one by one.

4. flat motor according to claim 3, it is characterised in that: being protruding with the some lugs being contained in upper casing breach one by one outside described outer ring, described lug is supported in downwards on protuberance.

5. flat motor according to claim 1, it is characterised in that: described flat motor also includes one second insulating washer, and described second insulating washer is pasted onto the roof inner surface of upper casing or the end face of mass.

6. flat motor according to claim 4, it is characterized in that: described flat motor also includes one the 3rd insulating washer, 3rd insulating washer is pressed on downwards on outer ring, 3rd insulating washer is provided with the some chimbs protruded laterally, described chimb is contained in the corresponding breach of upper casing one by one, is also posted by downwards on the lug of latch plate.

7. flat motor according to claim 6, it is characterised in that: the lateral surface of described chimb, spring tab and protuberance tends to coplanar.

8. flat motor according to claim 1, it is characterised in that: described metal washer is fixed on lower casing also by laser weld.

9. flat motor according to claim 1, it is characterised in that: described inner ring is fixed together by laser weld and mass.