CN212726765U - Motor device, front case assembly, and electronic apparatus - Google Patents

Abstract

The utility model relates to a terminal field discloses a motor device, preceding shell subassembly and electronic equipment. The utility model discloses in, contain: a motor, a flexible conductive layer; the flexible conductive layer covers a sidewall of the motor. The utility model discloses a cover flexible conducting layer on the lateral wall of motor, compare prior art with flexible conducting layer setting at the upper surface of motor, even the motor lateral wall receives great effort, the lateral wall atress is comparatively motor upper surface atress say, can make whole motor atress comparatively even, the motor is difficult to warp, has reduced the impaired probability of motor.

Description

Motor device, front case assembly, and electronic apparatus

Technical Field

The utility model relates to a terminal field, in particular to motor device, preceding shell subassembly and electronic equipment.

Background

At present, most electronic products are provided with motors, for example, the motors are arranged in electronic products such as mobile phones and tablets, so that the vibration function of the electronic products is realized. In the prior art, in order to achieve grounding of the motor, a metal plate covering the upper surface of the motor usually extends out of the front shell, and the grounding of the motor is achieved through the electrical connection between the upper surface of the motor and the metal plate, i.e. the bridge type grounding. In order to achieve good electrical conductivity between the metal plate and the upper surface of the motor, the metal plate on the upper surface of the motor is usually pressed with a certain pressure after the motor is mounted on the front case.

The inventor finds that at least the following problems exist in the prior art: the upper surface of the motor is continuously pressed, so that the motor is deformed under the action of long-time stress, and the motor is damaged and fails in function.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a motor device, preceding shell subassembly and electronic equipment reduce the impaired probability of motor.

In order to solve the above technical problem, an embodiment of the present invention provides a motor device, including: a motor, a flexible conductive layer; the flexible conductive layer covers a sidewall of the motor.

The embodiment of the utility model provides a for prior art, flexible conducting layer covers on the lateral wall of motor, compares prior art with flexible conducting layer setting at the upper surface of motor, even the motor lateral wall receives great effort, the lateral wall atress is comparatively motor upper surface atress, can make whole motor atress comparatively even, and the motor is difficult to warp, has reduced the impaired probability of motor.

In addition, the flexible conducting layer is attached to the side wall through conducting glue. The flexible conducting layer is not easy to fall off, and the motor device is convenient to assemble in the groove of the front shell.

In addition, the flexible conducting layer is made of conducting sponge or conducting foam. By arranging the flexible conducting layer into the retractable conducting sponge or the retractable conducting foam, after the motor device is arranged in the groove of the front shell, the flexible conducting layer can be compressed under the action of the force of the side wall of the groove of the front shell, so that the electric connection between the motor and the front shell is more stable; in addition, because the flexible conducting layer is made of a retractable material, when the motor device is assembled on the front shell, the motor device can be placed in the groove of the front shell by directly utilizing the retractility of the flexible conducting layer, and the assembling process of the motor device is simplified.

In addition, the motor is a flat motor.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

FIG. 1 is a cross-sectional view of a motor bridging a front housing according to the prior art;

fig. 2A is a schematic top view of a motor device according to a first embodiment of the present application;

fig. 2B is a schematic structural view of a motor device according to the first embodiment of the present application;

fig. 3 is a schematic cross-sectional view of a front shell assembly according to a second embodiment of the present application.

Detailed Description

Fig. 1 is a schematic cross-sectional view of a motor and a front housing in the prior art. Fig. 1 includes a motor 101, a front case 102 having a recess, and a metal plate 103 extending from the front case 102, and it can be seen that, in the prior art, in order to electrically connect the front case 102 to the motor 102, the metal plate 103 extends from the front case 102, and the metal plate 103 is covered on the upper surface of the motor 101, and by pressing the metal plate 103, stable electrical connection between the metal plate 103 and the motor 101 is achieved. However, the upper surface of the motor 101 is continuously pressed, so that the motor 101 is deformed under a long-term stress, and the motor 101 is damaged and fails to function.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in the embodiments of the present invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.

A first embodiment of the present invention relates to a motor device, as shown in fig. 2A, which is a schematic top view structure diagram of the motor device of the present embodiment; as shown in fig. 2B, is a schematic structural diagram of the motor device of the present embodiment.

Referring to fig. 2A and 2B, the motor device of the present embodiment includes a motor 201, a flexible conductive layer 202; the flexible conductive layer 202 covers the side walls of the motor 201.

Specifically, the flexible conductive layer 202 is disposed around a full circle of the sidewall of the motor 201, completely covering the sidewall of the motor 201, that is, the length of the flexible conductive layer 202 is the same as the circumference of the upper surface or the lower surface of the motor 201, and the width of the flexible conductive layer 202 is the same as the height of the motor 201.

In this embodiment, flexible conducting layer covers on the lateral wall of motor, compares prior art with flexible conducting layer setting at the upper surface of motor, even the motor lateral wall receives great effort, the lateral wall atress is comparatively motor upper surface atress, can make whole motor atress comparatively even, and the motor is difficult to warp, has reduced the impaired probability of motor.

In one example, the flexible conductive layer 202 is attached to the side wall of the motor 201 by a conductive adhesive. The flexible conductive layer 202 is not easy to fall off, and the motor device is convenient to assemble in the groove of the front shell.

Specifically, the conductive adhesive has not only adhesion but also conductivity, and the flexible conductive layer 202 is not easily detached and the flexible conductive layer 202 is stably electrically connected to the motor 201 by adhering the conductive adhesive between the flexible conductive layer 202 and the side wall of the motor 201.

In one example, the material of the flexible conductive layer 202 is a conductive sponge or a conductive foam.

Specifically, in order to stably connect the flexible conductive layer 202 to the front shell, the shape of the motor 201 is taken as a cylinder as an example, and the radius of the bottom surface of the groove of the front shell is larger than that of the bottom surface of the motor 201, and the radius of the bottom surface of the groove of the front shell is smaller than the sum of the radius of the bottom surface of the motor 201 and the thickness of the flexible conductive layer 202; thereby causing the flexible conductive layer 202 to retract under the pressure of the side wall of the groove, and achieving a stable connection of the flexible conductive layer 202 to the front shell. It should be noted that, if the motor 201 is a rectangular parallelepiped, a cube, or a multi-prism, as long as the motor device is installed in the front housing groove, the conductive sponge or the conductive foam is compressed, so that the motor 201 and the front housing can be stably connected.

In this embodiment, flexible conducting layer 202 with retractility is after the installation at preceding shell, receives the effect of preceding shell recess lateral wall to compress down to make motor 201 more stable with the electric connection of preceding shell, and owing to be the lateral wall atress, compare prior art through motor upper surface atress, the motor 201 lateral wall atress of this embodiment is comparatively even, has reduced the impaired probability of motor 201.

It should be noted that, because the flexible conductive layer is made of a retractable material, when the motor device is assembled on the front shell, the motor device can be placed in the groove of the front shell by directly utilizing the retractility of the flexible conductive layer, thereby simplifying the assembly process of the motor device.

It should be noted that the thickness of the conductive sponge or the conductive foam is related to the compression ratio of the conductive sponge or the conductive foam. When the compression ratio of the conductive sponge or the conductive foam is larger, the thickness of the conductive sponge or the conductive foam can be thicker; when the compression ratio of the conductive sponge or the conductive foam is smaller, the thickness of the conductive sponge or the conductive foam can be thinner; as long as the motor 201 side walls are within the range of pressures that it can withstand.

In one example, the motor 201 is a flat motor.

A second embodiment of the present invention relates to a front shell assembly including the motor device of the first embodiment. A schematic cross-sectional structure of the front housing assembly of the present embodiment is shown in fig. 3, and includes a front housing 303, a motor device 30; for convenience of description, the motor device 30 in the front case assembly is detached from the front case 303 in fig. 3, but the practical application finds that the motor device 30 can be mounted in the front case 303.

Specifically, the front case 303 has a groove 304, and the motor device 30 has a motor 301, a flexible conductive layer 302 covering the side wall of the motor 301; in practical applications, the motor device 30 will be placed in the recess 304; thereby achieving electrical connection of the motor 301 with the front case 303.

Specifically, when the motor element 30 is placed in the groove 304, if there is a gap between the motor element 30 and the groove 304, one or more metal plates extend in the groove 304 to be connected to the flexible conductive layer 302 of the motor element 30, thereby achieving electrical connection of the flexible conductive layer 302 with the front case 303; if there is no gap between the motor device 30 and the groove 304, it means that the flexible conductive layer 302 of the motor device 30 is tightly attached to the sidewall of the groove 304, and at this time, the flexible conductive layer 302 and the front shell 303 can be electrically connected without extending a metal plate on the sidewall.

In practical applications, before the front case 303 is assembled to the motor device 30, the side walls of the groove 304 of the front case 303 need to be processed by a laser etching process to remove the oxide layer on the side walls of the groove 304 of the front case 303, so as to better achieve the electrical connection between the motor device 30 and the front case.

In one example, the groove 304 and the motor 301 are both cylinders; in other embodiments, the groove 304 and the motor 301 may be rectangular parallelepiped, square, polygonal prism, etc.

In one example, the material of the flexible conductive layer 302 is conductive sponge or conductive foam; the radius of the bottom surface of the groove 304 is larger than that of the bottom surface of the motor 301, and the radius of the bottom surface of the groove 304 is smaller than the sum of the radius of the bottom surface of the motor 301 and the thickness of the flexible conductive layer 302; so that when the motor device 30 is mounted in the groove 304 of the front case 303, the conductive sponge or the conductive foam is compressed, and a stable connection of the flexible conductive layer 302 and the front case 303 is achieved. In other embodiments, if the motor device 30 is a rectangular parallelepiped, a cube, or a multi-prism, as long as the motor device 30 is installed in the groove 304, the conductive sponge or the conductive foam is compressed, so that the flexible conductive layer 302 and the front shell 303 can be stably connected.

In one example, the depth of the recess 304 is the same as the height of the motor device 30. Through the arrangement, the side walls of the motor devices 30 are stressed on the side walls of the grooves 304, so that the whole stress of the motor devices 30 is uniform, and the probability that the motor devices 30 are damaged is further reduced.

In this embodiment, through using the motor device of above-mentioned first embodiment, compare prior art with flexible conducting layer setting at the upper surface of motor, even the motor lateral wall receives great effort, the lateral wall atress is comparatively motor upper surface atress, can make whole motor atress comparatively even, the motor is difficult to warp, has reduced the impaired probability of preceding shell subassembly, improves the life of whole preceding shell subassembly.

It should be noted that, as can be understood by those skilled in the art, this embodiment may be implemented in cooperation with the first embodiment, and the relevant technical details of the first embodiment are still valid in this embodiment, and are not described herein again to avoid repetition.

A third embodiment of the present invention relates to an electronic device including the front case assembly of the second embodiment.

In this embodiment, by using the front shell assembly of the second embodiment, the probability of damage to the whole electronic device is reduced, and the service life of the whole electronic device is prolonged.

It should be noted that, as can be understood by those skilled in the art, this embodiment may be implemented in cooperation with the first embodiment and the second embodiment, and relevant technical details of the first embodiment and the second embodiment are still valid in this embodiment, and are not described herein again to avoid repetition.

It will be understood by those skilled in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and detail may be made therein without departing from the spirit and scope of the invention in practice.

Claims (9)

1. A motor device, comprising: a motor, a flexible conductive layer;

the flexible conductive layer covers a sidewall of the motor.

2. The motor device of claim 1, wherein the flexible conductive layer is affixed to the sidewall by a conductive adhesive.

3. The motor device of claim 1, wherein the material of the flexible conductive layer is a conductive sponge or a conductive foam.

4. The motor device of claim 3, wherein the motor is a flat motor.

5. A front shell assembly, comprising: a front housing, the motor device of any one of claims 1 to 4;

the front housing has a recess in which the motor means is placed;

the flexible conductive layer is electrically connected with the front shell.

6. The front shell assembly of claim 5, wherein the recess and the motor are each cylindrical.

7. The front shell assembly of claim 6, wherein the material of the flexible conductive layer is a conductive sponge, a conductive foam; the radius of the bottom surface of the groove is larger than that of the bottom surface of the motor, and the radius of the bottom surface of the groove is smaller than the sum of the radius of the bottom surface of the motor and the thickness of the flexible conducting layer.

8. The front shell assembly of claim 6, wherein the groove depth is the same as the height of the motor means.

9. An electronic device comprising the front shell assembly of any one of claims 5 to 8.

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