CN209787427U

CN209787427U - integrated direct-drive vibration device and electronic product

Info

Publication number: CN209787427U
Application number: CN201920691737.0U
Authority: CN
Inventors: 朱跃光; 毛东升; 王永强
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2019-12-13
Anticipated expiration: 2029-05-14

Abstract

The utility model relates to an integral type directly drives vibrating device and electronic product, including drive assembly, vibration subassembly and elastic connection spare, the vibration subassembly includes first part and second part, first part and second part are configured to can the relative vibration; the driving assembly comprises a magnetic circuit assembly and an iron core assembly; the magnetic circuit assembly is arranged on the first component; the core assembly is disposed on the second component; the elastic connecting pieces are respectively connected with the first component and the second component, and are configured to generate elastic deformation when the first component and the second component vibrate relatively. The utility model discloses an usage makes product formula as an organic whole vibration, has improved system vibration stability, and relative position leans on the complete machine to guarantee, has reduced the assembly degree of difficulty, has improved the assembly precision.

Description

Integrated direct-drive vibration device and electronic product

Technical Field

The utility model relates to a vibrating device technical field, more specifically, the utility model relates to an integral type directly drives vibrating device and electronic product.

Background

The sound generating device is an important electroacoustic transducer element in electronic products, and is used for converting current signals into sound. Along with the rapid development of electronic products in recent years, sound generating devices applied to the electronic products are also improved correspondingly.

The traditional sound production device for the mobile phone receiver adopts the principle that the vibrating diaphragm pushes air to vibrate and produce sound. Recently, as a full screen becomes a main development direction of a mobile phone, how to realize a receiver function without a hole on a first surface and have better listening experience is a technical problem facing the current.

Those skilled in the art try to use a speaker to generate sound from the inside of the mobile phone, but the sound effect is difficult to meet the application requirements. In addition, the technical personnel in the field also try to adopt structural components similar to the vibration motor to cause other components of the mobile phone to vibrate and generate sound, but due to the tolerance brought by the whole mobile phone assembly, the reliability of the vibration sound generation mode is difficult to guarantee, and the product yield is too low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an integral type directly drives new technical scheme of vibrating device and electronic product.

According to the utility model discloses an aspect provides an integral type directly drives vibrating device, a serial communication port, including drive assembly, vibration subassembly and elastic connection spare.

The vibration assembly includes a first member and a second member configured to be capable of relative vibration.

The drive assembly includes a magnetic circuit assembly and a core assembly.

The magnetic circuit assembly is disposed on the first member.

The iron core component comprises a coil and an iron core, wherein the coil is of a closed annular structure, the coil is wound on the iron core, and the iron core component is arranged on the second component.

The elastic connecting pieces are respectively connected with the first component and the second component, and are configured to generate elastic deformation when the first component and the second component vibrate relatively.

Optionally, the magnetic circuit assembly comprises a housing and a magnet, the housing is bent to form a containing area, the magnet is arranged in the containing area, and the housing wraps the magnet.

Optionally, the first part is provided with a receiving groove, and the magnetic circuit assembly is embedded in the receiving groove.

Optionally, the iron core is in a convex structure, the width of the lower portion of the iron core is larger than that of the upper portion of the iron core, and the coil is wound on the lower portion.

Optionally, the core assembly further comprises a core ring, the core ring is sleeved on the upper portion, and the core ring is arranged above the coil.

Optionally, the iron core assembly further comprises a circuit board, the circuit board is provided with a through hole matched with the lower part of the iron core, the iron core penetrates through the through hole, and the circuit board is electrically connected with the coil.

Optionally, the elastic connector comprises a fixing part and an elastic part, the fixing part is connected with the second component, and the elastic part is connected with the first component.

Optionally, the fixing portion of the elastic connecting piece extends out of a side wall, and the side wall is configured to be located at two sides of the magnetic circuit assembly.

Optionally, the elastic part extends obliquely upward relative to the fixing part, and the elastic part includes a fixed end and a free end, and the fixed end is integrally connected with the fixing part.

the utility model also provides an electronic product, include:

The vibration device described above.

A product body including a fixed portion and a screen disposed on the fixed portion, the screen being configured to be vibratable relative to the fixed portion.

The first member is the fixed portion, and the second member is the screen.

Alternatively, the first member is the screen and the second member is the fixed portion.

The utility model discloses a technological effect lies in, this application has increased elastic connection spare for product formula as an organic whole vibrates, has improved system vibration stability, and drive assembly's assembly precision does not receive the influence of electronic product complete machine assembly, has reduced the assembly degree of difficulty, has improved the assembly precision.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic structural diagram of the integrated direct-drive vibration device provided by the present invention.

Fig. 2 is a side view of an application example of the integrated direct-drive vibration device of the present invention.

Fig. 3 is a cross-sectional view of an application embodiment of the integrated direct-drive vibration device of the present invention.

Fig. 4 is a schematic structural diagram of a part of the components of the integrated direct-drive vibration device according to the present invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

the following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

it should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

According to an embodiment of the present invention, there is provided an integrated direct-drive vibration device, as shown in fig. 1, including a driving component, a vibration component and an elastic connecting member 107.

The vibration assembly includes a first member and a second member configured to be capable of relative vibration. Namely the second portion as a fixed portion relative to which the first component vibrates; or the first member as a fixed portion, the second member vibrating with respect to the first member.

The drive assembly includes a magnetic circuit assembly and a core assembly.

The elastic connecting parts 107 are respectively connected with the first component and the second component, and when the first component and the second component vibrate relatively, the elastic connecting parts 107 are configured to generate elastic deformation.

Preferably, the elastic connection member includes a fixing portion 1071 fixedly connected with the second member and an elastic portion 1072 connected with the first member. The elastic connecting piece 107 enables the product to vibrate in an integrated mode, the system vibration stability is improved, the assembly precision of the driving assembly is not affected by the whole electronic product assembly, the assembly difficulty is reduced, and the assembly precision is improved.

Optionally, the elastic connecting piece may also be elastic foam, elastic rubber, or the like, and the connection between the first component and the second component may be achieved.

the resilient connecting member 107 is connected directly and/or indirectly to the first member, and in this embodiment, the resilient portion of the resilient connecting member is connected to a magnetic circuit assembly provided on the first member.

According to an embodiment of the present invention, the magnetic circuit assembly includes a magnet 102 and a housing 101, the housing 101 is bent to form a containing area, the magnet 102 is disposed in the containing area, and the housing 101 covers the magnet 102. The casing 101 can gather the magnetic field of diffusion to the atress region of coil to furthest, strengthens magnetic induction, promotes the vibration sense of vibration subassembly. Meanwhile, the shell can protect the magnet, integrity of the magnetic circuit assembly can be improved, and assembly is facilitated.

The magnetic circuit assembly comprises two magnets 102, a magnetic field is formed between the two magnets, the iron core assembly extends into the magnetic field, and the magnetic pole direction of each magnet is parallel to the axial direction of the coil.

The upper surface of the housing 101 may be provided with a through groove and/or a protrusion, which form an avoidance space. The avoidance space is used for avoiding the direct collision between the core assembly and the shell 101. When the magnet 102 and the iron core assembly are electromagnetically induced, large vibration may be generated, and the iron core assembly can be moved to the position where the through groove and/or the protrusion are/is located, so that collision is prevented, and the vibration effect is prevented from being influenced.

The magnetic circuit assembly is disposed on the first member. Specifically, the magnetic circuit assembly is fixedly connected with the inner surface of the first part, or an accommodating groove is formed in the first part, and the magnetic circuit assembly is embedded in the accommodating groove. The connection mode of magnetic circuit subassembly and first part makes magnetic circuit subassembly's installation more firm on the one hand, and on the other hand also improves magnetic circuit subassembly's wholeness, the assembly of being convenient for.

According to the utility model discloses an embodiment, the iron core subassembly includes coil 105 and iron core 104, coil 105 is the confined loop configuration, coil 105 twine set up in on the iron core 104, the iron core subassembly sets up on the second part.

The iron core 104 is in a convex structure, the width of the lower part of the iron core is larger than that of the upper part of the iron core, and the coil is wound on the lower part of the iron core. Specifically, the cross section of the iron core may be a convex structure, or an external tangent elliptical structure, etc.

Optionally, the core assembly further includes a core ring 103, the core ring 103 is sleeved on the upper portion, and the core ring 103 is disposed above the coil. The iron core ring 103 is used for condensing the magnetic field and preventing the magnetic field from leaking. The iron core with the convex structure is convenient to fix the iron core ring 103, the iron core ring 103 is prevented from moving up and down and shaking, and interference to a magnetic field is avoided.

The iron core assembly is arranged on the second component, and specifically comprises the iron core assembly which is directly arranged on the second component, or the iron core assembly which is indirectly arranged on the second component.

In one example, the circuit board 106 is provided with a through hole that mates with the plunger 104, and the plunger 104 is clearance fit with the through hole and can pass through the through hole. A coil 105 surrounding the lower portion of the core 104 is electrically connected to the circuit board 106. The core assembly is directly connected to the second component.

In one example, the resilient connecting member 107 includes a fixed portion 1071 fixedly connected to the second component and a resilient portion 1072 connected to the first component.

The elastic portion 1072 extends obliquely upward with respect to the fixing portion 1071, and the elastic portion 1072 is connected to the magnetic circuit component, specifically, the elastic portion 1072 is connected to the housing 101 and/or the magnet 102. The elastic connecting piece 107 is used for protecting the iron core assembly, improving the integrity of the iron core assembly and the magnetic circuit assembly and facilitating assembly; and meanwhile, the vibration integrity of the product is improved.

elastic component 1072 includes stiff end and free end, and wherein the stiff end is connected with elastic connection 107's fixed part integral type, for example the fixed part directly scores U type structure, the open end of U type structure is the stiff end of elastic component, and the blind end of U type structure is elastomeric element's free end. The shape of the elastic portion is not limited to a U-shaped structure, and the elastic portion may conform to a cantilever beam structure.

In one example, the circuit board 106 is provided with a through hole that mates with the plunger 104, and the plunger 104 is clearance fit with the through hole and passes through the through hole. The wiring board 106 is electrically connected to the coil 105. The core assembly is disposed above the elastic connection member 107. The elastic connection 107 is fixedly connected to the second part.

Alternatively, the two ends of the fixing portion 1071 of the elastic connecting member 107 are extended with side walls respectively, the side walls are configured to be placed at two sides of the magnetic circuit assembly, as shown in fig. 1, the fixing portion 1071 is in a U-shaped structure, and the side walls are configured to be placed at two sides of the magnetic circuit assembly for defining the positions of the two magnets and the position of the housing 101 enclosing the two magnets. Specifically, the side wall is configured to be located at the outer side of the housing 101, and the outer side wall of the housing 101 is in contact connection with the inner surface of the side wall of the fixing part, so as to define the position of the housing 101 and improve the connection integrity of the housing 101 and the first component; or the side walls are configured to be positioned at both sides of the magnet 102, and the inner surface of the side wall of the fixed part is in contact connection with the end face of the magnet for limiting the position of the housing 101 and improving the integrity of the connection of the magnetic circuit assembly and the first component.

Alternatively, the outer surface of the fixing portion 1071 of the elastic connection member 107 is provided in a stepped shape, and the step where the size of the fixing portion 1071 is changed sharply is the free end of the elastic portion 1072, wherein the stepped fixing portion performs a shock-absorbing and pressure-relieving function. The "outer surface" in this embodiment is a surface where the fixing portion is connected to the second member.

Fig. 4 is the utility model discloses an integral type directly drives structural schematic of vibrating device 'S partial part, specifically the utility model discloses directly drive formula vibrating device' S vibration schematic, as shown in fig. 4, the utility model discloses well magnet 102 magnetizes the direction and is parallel with coil 105 'S axial direction, and coil 105 vertical distribution in this embodiment, therefore magnet 102 magnetizes the direction for indulging the direction, and shown in fig. 4, two magnet 102' S the N utmost point is in magnet S utmost point top, or the magnetic pole direction of two magnets can also be the S utmost point in magnet N utmost point top.

When the N poles of the two magnets 102 are above the S pole of the magnet, the coil 105 is fed with a current signal to make one end of the iron core far away from the second component form an S pole, and one end connected to the second component forms an N pole, the S pole of the iron core and the S pole of the magnet repel each other, so that the iron core and the coil 105 are driven to move downwards, and the second component is further driven to move downwards.

Conversely, when a current signal is introduced into the coil 105, so that an end of the iron core, which is far away from the second component, forms an N pole, and an end connected to the second component forms an S pole, the S pole of the iron core and the N pole of the magnet, which is far away from the first component, attract each other, so that the iron core and the coil are driven to move upwards, and the second component is pulled to move upwards. By repeating the alternation of the magnetic field directions of the cores, the second member vibrates and generates sound with respect to the first member.

The principle of the first component sounding by vibrating relative to the second component is similar to the above-mentioned principle of the second component sounding by vibrating relative to the first component, and the present invention is not further explained below.

According to an embodiment of the present invention, there is provided an electronic product, as shown in fig. 2, the electronic product includes the above-mentioned direct-drive vibration device 01 and a product main body. The product main body includes a fixed portion 03 and a screen 02, the screen 02 being disposed on the fixed portion 03, the screen 02 being configured to be capable of vibrating with respect to the fixed portion 03.

The first part is the fixed portion 03 and the second part is the screen 02; alternatively, the first part is the screen 02 and the second part is the fixed portion 03.

Optionally, the electronic product may further include a rear case 04 connected to the fixing portion 03.

The electronic product can be a mobile phone or a tablet computer and the like, and the utility model discloses do not restrict this.

According to an embodiment of the present invention, there is provided an electronic product, as shown in fig. 3, in the present embodiment, the second member is disposed on the product main body and used as a screen of the electronic product. The screen can be arranged in a mode that one end of the screen is rotatably connected to the product main body and the other end of the screen can move freely; alternatively, a screen made of a material having a good elastic deformability may be used, and one end of the screen is fixedly connected to other fixed components, and the other end of the screen is freely movable. In this way, the screen is able to vibrate with respect to the body of the product. A part of the structure of the product body may serve as the fixing portion, and the driving assembly is disposed in the product body.

The fixed part of the direct-drive vibration device is of a structure such as a middle frame and a side wall in the product main body. In order to mount other electronic devices in the product body, the product body is often configured with a partition, a middle frame and other structural components, which have good structural stability in the electronic product, and are used for mounting the electronic devices on one hand and protecting the electronic devices on the other hand. Therefore, by using such a structural member in the product body as the fixing portion, the conversion rate of the ampere force into the vibration can be improved, and the vibration reliability can be improved. The inner surface of the side wall of the product body may also serve as the fixing portion.

As shown in fig. 3, the first member in this embodiment is the fixed portion 03, and the second member is the screen 02.

The magnetic circuit assembly is disposed on the fixed portion 03, and the core assembly is disposed on the screen 02.

The magnetic circuit assembly comprises a shell 101 and two magnets 102, a magnetic field is formed between the two magnets 102, the iron core assembly extends into the magnetic field, and the magnetic pole direction of each magnet is parallel to the axial direction of the coil.

The housing 101 encloses the magnet 102 and is connected to the fixing portion 03. The housing 101 is disposed on an inner surface of the fixing portion 03, and specifically, the housing 101 is disposed on a surface of the fixing portion 03 in a fitting manner. Wherein the fixing portion 03 is connected with the housing by means including, but not limited to, laser welding.

The iron core subassembly includes coil 105 and iron core 104, coil 105 is confined loop configuration, coil 105 winding set up in on the iron core 104, the iron core subassembly sets up on the screen 02.

The core assembly further includes a wiring board 106 and a core ring 103. The core ring 103 is disposed above the coil 105, the circuit board 106 is disposed below the coil 105, and the circuit board 106 is electrically connected to the coil 105.

The elastic connection member 107 includes a fixing portion 1071 fixedly connected to the second member and an elastic portion 1072 connected to the magnetic assembly. Specifically, the elastic portion 1072 is connected to the magnet 102. The fixing part 1071 is connected to the screen 02. The elastic connecting piece 107 is used for protecting the core assembly, improving the integrity of the core assembly and the magnetic circuit assembly and facilitating assembly.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. An integrated direct-drive vibration device is characterized by comprising a driving assembly, a vibration assembly and an elastic connecting piece;

The vibration assembly comprises a first component and a second component, the first component and the second component are configured to be capable of relative vibration;

The driving assembly comprises a magnetic circuit assembly and an iron core assembly;

The magnetic circuit assembly is arranged on the first component;

The iron core assembly comprises a coil and an iron core, the coil is of a closed annular structure and is wound on the iron core, and the iron core assembly is arranged on the second component;

2. the vibration apparatus as claimed in claim 1, wherein the magnetic circuit assembly includes a housing bent to form a receiving area and a magnet disposed in the receiving area, the housing wrapping the magnet.

3. Vibrating device according to claim 1 or 2, wherein the first part is provided with a receiving groove in which the magnetic circuit assembly is embedded.

4. the vibration apparatus as claimed in claim 1, wherein the core has a "convex" shape, a lower portion of the core has a width larger than that of an upper portion, and the coil is wound around the lower portion.

5. The vibratory apparatus of claim 4 wherein said core assembly further comprises a core ring, said core ring being nested in said upper portion, said core ring being disposed above said coil.

6. The vibration apparatus as claimed in claim 4, wherein the core assembly further comprises a circuit board provided with a through hole for fitting with a lower portion of the core, the core passing through the through hole, the circuit board being electrically connected to the coil.

7. The vibration apparatus as claimed in claim 1, wherein the elastic connecting member comprises a fixed portion connected to the second member and an elastic portion connected to the first member.

8. The vibration apparatus as claimed in claim 7, wherein the elastic portion extends obliquely upward with respect to the fixing portion, and the elastic portion includes a fixed end and a free end, and the fixed end is integrally connected to the fixing portion.

9. The vibration apparatus as claimed in claim 7, wherein the fixed end of the elastic member extends out of a side wall configured to be located at both sides of the magnetic circuit assembly.

10. An electronic product, comprising:

the vibration device of any one of claims 1-9;

A product body including a fixed portion and a screen provided on the fixed portion, the screen being configured to be vibratable relative to the fixed portion;

The first part is the fixed portion and the second part is the screen;