CN211209918U - Magnetic conduction plate and loudspeaker - Google Patents

Abstract

The utility model discloses a magnetic conduction board and have speaker of this magnetic conduction board, magnetic conduction board is including the main part that is the rectangle form, magnetic conduction board is including being located the bight at four diagonal angles of main part, bight is equipped with the elastomer respectively, the partition structure has respectively between the bight. So set up, can effectually restrict the elastomer in bight, and can maintain the damping effect of elastomer in the use, and then can maintain and play damped effect to rolling the most serious voice coil loudspeaker voice coil four corners that shakes, better suppression rolls and shakes, effectual listening and the service power who promotes electroacoustic devices such as speaker, reach the effect of reinforcing loudness, improve the product property ability of electroacoustic devices such as speaker.

Description

Magnetic conduction plate and loudspeaker

Technical Field

The utility model relates to an acoustoelectric field especially relates to a magnetic conduction board and speaker for acoustoelectric product.

Background

At present, the magnetic conducting plate in the prior art is generally simpler in structure and regular in shape, four sides of the magnetic conducting plate are straight sides, and the magnetic conducting plate only plays a role in magnetic conduction of a magnetic field, as shown in fig. 1. The requirements of electroacoustic devices on the market are developed towards the direction of high power and high volume, and the larger the driving power is, the greater the vibration stability of the diaphragm is inevitably influenced, so that the rolling vibration is intensified, and the voice coil is easy to rub and touch the magnetic conduction plate, thereby generating noise. In order to solve the problem, the damping material magnetic elastomer is sprayed at the four corners of the magnetic conduction plate, so that the damping effect is exerted on the four corners of the voice coil with the most severe rolling vibration, the rolling vibration is restrained, the listening power and the using power are effectively improved, and the product sounding effect is improved. Because the magnetoelastic body is easily adsorbed by the magnetic field, and the electroacoustic device voice coil loudspeaker voice coil constantly vibrates and beats the magnetoelastic body in the course of the work, so the magnetoelastic body can be adsorbed by the higher straight flange of magnetic field intensity and past, and ordinary magnetic conduction board four sides all are the straight flange, can't play the effect that separation magnetoelastic body extended to the straight flange, cause four corners magnetoelastic body glue volume to become less, influence damping effect.

In view of the above, it is necessary to design a new magnetic conductive plate and a new speaker to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a better magnetic conduction board of damping effect and speaker.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a magnetic conduction board, is including the main part that is the rectangle form, magnetic conduction board is including being located the bight of four diagonal angles of main part, the bight is equipped with the elastomer respectively, separate the structure respectively has between the bight.

Optionally, the magnetic conductive plate includes an extension body extending outward from the periphery of the main body portion, and a gap is formed between the corner portion and the extension body.

Optionally, the lower surface of the main body part is flush with the lower surface of the extension body.

Optionally, the magnetic conductive plate includes an extension body extending outward from the periphery of the main body portion, the main body portion extends outward to form a plurality of bosses, and the bosses are located between the corner portions and the extension body.

Optionally, the height of the boss is greater than the height of the corner and/or the height of the boss is greater than the height of the extension.

Optionally, the height of the main body portion is greater than the height of the extension body.

Optionally, the width of the corner is greater than the width of the extension.

Optionally, the corner portion is arranged in an arc shape.

Optionally, the elastic body is a magnetic elastic body.

The utility model discloses still adopt following technical scheme, a speaker, reach as aforementioned magnetic conductive plate including support body, vibrating diaphragm, voice coil loudspeaker voice coil subassembly, magnet, the vibrating diaphragm with the support body voice coil loudspeaker voice coil subassembly fixed connection, the voice coil loudspeaker voice coil subassembly encircles central magnet with the magnetic conductive plate, the magnetic conductive plate set up in central magnet upper surface.

The utility model discloses a be provided with the partition structure on the magnetic conduction board, can effectually restrict the elastomer in bight, and can maintain the damping effect of elastomer in the use, and then can maintain and play damped effect to rolling the most serious voice coil loudspeaker voice coil four corners that shakes, better suppression rolls the shake, effectual listening and the service power that has promoted electro-acoustic devices such as speaker, reach the effect of reinforcing loudness, with the sound effect that improves electro-acoustic devices such as speaker, improve product property ability.

Drawings

Fig. 1 is a perspective view of a prior art magnetizer.

Fig. 2 is a perspective view of the magnetizer according to the first embodiment of the present invention.

Fig. 3 is an exploded perspective view of the magnetizer according to the first embodiment of the present invention.

Fig. 4 is a schematic view of fig. 3 from another angle.

Fig. 5 is a schematic view of another angle in fig. 3.

Fig. 6 is a perspective view of a magnetizer according to a second embodiment of the present invention.

Fig. 7 is a perspective view of another angle of the magnetizer according to the second embodiment of the present invention.

Fig. 8 is a partially exploded view of the speaker of the present invention.

Fig. 9 is a further exploded view of the speaker of fig. 8.

Fig. 10 is a further exploded view of the speaker of fig. 9.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 2 to 7, the magnetic conductive plate 100 of the present invention includes rectangular main bodies 11 and 11', and corner portions 12 and 12' located at four opposite corners of the main bodies 11 and 11 '. In detail, the main bodies 11 and 11 'and the corner portions 12 and 12' may be integrally formed or may be separately provided. The corners 12, 12' are each provided with an elastic body 2. Specifically, the elastic body 2 is, for example, a magnetoelastic body, and the elastic body 2 is provided as a damper and further has an effect of suppressing rolling vibration. The corners 12, 12 'each have a separation structure therebetween, which can prevent the elastic body 2 from moving during operation, i.e. the separation structure can limit the elastic body 2 to the corners 12, 12', so as to ensure an effective amount of glue for the elastic body 2. In particular, the separation between the corners 12, 12' may be a notch, a solid boss, or a combination thereof, and specific embodiments of the separation will be described below.

Referring to fig. 2 to 5, a partition structure of the present embodiment includes a notch according to a first embodiment of the present invention. Specifically, the magnetic conductive plate 100 of the present embodiment includes the main body 11 having a rectangular shape, the extending bodies 13 extending outward from the periphery of the main body 11, the corner portions 12 located at four opposite corners of the main body 11, the notches 14 provided between the corner portions 12 and the extending bodies 13, and the elastic body 2 provided on each of the corner portions 12.

The notch 14 penetrates through the magnetic conductive plate 100 along the thickness direction of the magnetic conductive plate 100 and separates the adjacent corner 12 from the extension 13, and the two adjacent corners 12 are separated by the notch 14 and the extension 13. Referring to fig. 3 and 5, along the thickness direction of the magnetic conductive plate 100, the lower surface 112 of the main body 11 is flush with the lower surface 132 of the extension 13, and the upper surface 111 of the main body 11 is higher than the upper surface 131 of the extension 13. As shown in fig. 4, the width of the corner 12 is greater than the width of the extension 13 along the extending direction of the main body 11.

Each of the corner portions 12 is formed in an arc shape and is provided with a receiving groove 120 recessed downward. The accommodating groove 120 is used for accommodating the elastic body 2, and the elastic body 2 can be sprayed in the accommodating groove 120; optionally, the elastic body 2 is a magnetic elastic body. In this embodiment, a plurality of breach 14 cooperation the holding tank 120 is acceptd and is restricted the elastomer 2 is in on the bight 12 to avoid elastomer 2 to be adsorbed because of voice coil loudspeaker voice coil vibration with constantly patting on the extension 13, play damped effect to the most serious voice coil loudspeaker voice coil four corners of rolling vibration, better suppression rolling vibration, effectual listening and the service power who promotes the electroacoustic device, reach the effect of reinforcing loudness, with the sound effect that improves the electroacoustic device, improve product property ability.

Referring to fig. 6 to 7, a second embodiment of the present invention is substantially the same as the first embodiment, and the main difference is that the partition structure includes a boss 14'.

The boss 14' in this embodiment extends outward from the periphery of the main body 11', and the boss 14' is located between the corner 12' and the extension 13 '. Along the thickness direction of the magnetic conductive plate 100, the height of the main body portion 11 'is greater than that of the extension 13', and the height of the boss 14 'is greater than that of the extension 13'. The height of the boss 14' is the same as the height of the body portion 11. The corner portion 12 'and the two adjacent bosses 14' are surrounded to form a receiving groove 120 'for receiving the elastic body (not shown), and the width of the corner portion 12' is greater than the width of the extending body 13 'along the extending direction of the main body 11'. In this embodiment, the height of the boss 14 'is also greater than the height of the corner 12'. In other embodiments, the magnetoelastic body may be prevented from extending to the flat plate portion of the separator in other manners as long as the effects of the present invention are achieved.

Please refer to fig. 8 to 10, the present invention further provides a speaker, wherein the speaker 900 includes a frame body 91, a vibrating diaphragm 92, a voice coil assembly 93, a central magnet 94, a side magnet 95, and a front magnetic conductive plate 100, the vibrating diaphragm 92 is fixedly connected to the frame body 91 and the voice coil assembly 93, the voice coil assembly 93 surrounds the central magnet 94 and the magnetic conductive plate 100, and the magnetic conductive plate 100 is disposed on an upper surface of the central magnet 94.

To sum up, the utility model discloses a be provided with breach 14 and boss 14 'on magnetic conductive plate 100, 100', can effectually restrict elastomer 2 in bight 12, 12', so can restrain elastomer 2 and extend to extension 13, 13', go up, thereby can maintain the damping effect of elastomer 2 in the use, also can play damped effect to rolling the most serious voice coil loudspeaker voice coil four corners that shakes, better suppression rolls the vibration, effectual listening and the service power that has promoted electro-acoustic devices such as speaker, reach the effect of reinforcing loudness, with the sound production effect that improves electro-acoustic devices such as speaker, improve product property ability.

Terms such as "upper," "lower," "left," "right," "front," "rear," and the like, used herein to denote relative spatial positions, are used for ease of description to describe one feature's relationship to another feature as illustrated in the figures. It will be understood that the spatially relative positional terms may be intended to encompass different orientations than those shown in the figures depending on the product presentation position and should not be construed as limiting the claims. In addition, the descriptor "horizontal" as used herein is not entirely equivalent to allowing an angular tilt along a direction perpendicular to the direction of gravity.

In addition, the above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present specification should be based on the technical personnel in the technical field, and although the present specification has described the present invention in detail with reference to the above embodiments, the person of ordinary skill in the art should understand that the person of ordinary skill in the art can still modify the present invention or substitute the same, and all the technical solutions and modifications that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims (10)

1. A magnetic conductive plate (100) comprises a rectangular main body part (11), and is characterized in that: the magnetic conduction plate (100) comprises corner parts (12) located at four opposite angles of the main body part (11), the corner parts (12) are respectively provided with an elastic body (2), and separation structures are respectively arranged between the corner parts (12).

2. A magnetically permeable plate according to claim 1, wherein: the magnetic conduction plate (100) comprises an extension body (13) extending outwards from the periphery of the main body portion (11), and a gap (14) is formed between the corner portion (12) and the extension body (13).

3. A magnetically permeable plate according to claim 2, wherein: the lower surface (112) of the main body (11) is flush with the lower surface (132) of the extension (13).

4. A magnetic conductive plate according to claim 1, wherein: the magnetic conduction plate (100) comprises an extension body (13') extending outwards from the periphery of the main body part (11'), the main body part (11') extends outwards to form a plurality of bosses (14'), and the bosses (14') are located between the corner part (12') and the extension body (13 ').

5. A magnetic conductive plate according to claim 4, wherein: the height of the boss (14') is greater than the height of the corner (12') and/or the height of the boss (14') is greater than the height of the extension (13').

6. A magnetic conductive plate according to claim 4, wherein: the height of the main body part (11') is greater than the height of the extension body (13').

7. A magnetic conduction plate as claimed in any one of claims 4 to 6 wherein: the width of the corner (12, 12') is greater than the width of the extension (13, 13').

8. A magnetic conductive plate according to any one of claims 1 to 6, wherein: the corner portions (12, 12') are arranged in an arc shape.

9. A magnetic conductive plate according to any one of claims 1 to 6, wherein: the elastic body (2) is a magnetoelastic body.

10. A loudspeaker, comprising a frame (91), a diaphragm (92), a voice coil assembly (93), a central magnet (94), and the magnetic conductive plate (100) according to any one of claims 1 to 9, wherein the diaphragm (92) is fixedly connected to the frame (91) and the voice coil assembly (93), the voice coil assembly (93) surrounds the central magnet (94) and the magnetic conductive plate (100), and the magnetic conductive plate (100) is disposed on the upper surface of the central magnet (94).

Images