Loudspeaker having multi-magnetic-circuit structure

Abstract

The present invention provides a loudspeaker having a multi-magnetic-circuit structure, comprising a frame provided with an accommodating space, a vibration system accommodated in the accommodating space, and at least two magnetic circuit systems for driving the vibration system to vibrate to produce sound. Each magnetic circuit system comprises a magnet yoke and magnetic steel arranged above the magnet yoke, and the magnet yoke comprises a bottom plate and a side wall which is bent and extends along the edge of the bottom plate; said loudspeaker further comprises supporting rings which are fixed to the frame and arranged around the magnetic yokes and damping pieces which are clamped between the supporting rings and the side walls; the magnetic circuit systems are suspended in the accommodating space by means of the supporting rings and the damping pieces; and vibration of the magnetic circuit systems counteracts at least part of vibration generated by the vibration system. In the structure, the supporting rings which are fixed to the frame and the damping pieces are arranged in the plurality of magnetic circuit systems, improving the installation stability of the plurality of magnetic circuit systems, and realizing the damping design of said loudspeaker.

Description

Multi-magnetic circuit structure loudspeaker TECHNICAL FIELD

[0001] The present application relates to the field of electro-acoustic conversion, and in particular to a multi-magnetic circuit structure loudspeaker. BACKGROUND

[0002] In recent years, with the rapid development of mobile communication technology, consumers increasingly use mobile communication devices with voice functions, such as portable phones, palm game consoles, laptop computers, notebook computers, multimedia players, and other devices capable of communicating through public or private communication networks. As a voice function playing device, the vibration stability of the multi-magnetic circuit structure loudspeaker is directly related to the user experience and the service life of the product.

[0003] In the related art, the multi-magnetic circuit structure loudspeaker produces strong vibration when it vibrates to produce sound.

[0004] Therefore, it is necessary to provide a new loudspeaker to solve the above problems. TECHNICAL PROBLEM

[0005] The purpose of the present application is to provide a loudspeaker with good magnetic circuit system stability. TECHNICAL SOLUTION

[0006] The technical solution of the present application is as follows: The present application provides a multi-magnetic circuit structure loudspeaker, comprising a basket having a receiving space, a vibration system received in the receiving space, and at least two magnetic circuit systems for driving the vibration system to vibrate and produce sound, each magnetic circuit system comprising a magnetic yoke and a magnetic steel arranged above the magnetic yoke, the magnetic yoke comprising a bottom plate and a side wall bent and extended along the edge of the bottom plate, the multi-magnetic circuit structure loudspeaker further comprising a support ring fixed to the basket and arranged around the magnetic yoke, and a damping member clamped between the support ring and the side wall, the support ring and the damping member suspending the magnetic circuit system in the receiving space, and the magnetic circuit system vibrating to cancel at least part of the vibration generated by the vibration system.

[0007] Preferably, the material of the support ring is plastic or metal.

[0008] Preferably, the material of the damping member is silica gel or rubber.

[0009] Preferably, the magnetic circuit system comprises a first magnetic circuit system and a second magnetic circuit system arranged apart from the first magnetic circuit system, the basket comprises a main body portion surrounding to form the receiving space and a first connecting portion connecting both sides of the main body portion, the first connecting portion divides the receiving space into a first receiving space accommodating the first magnetic circuit system and a second receiving space accommodating the second magnetic circuit system.

[0010] Preferably, the support ring comprises a first support ring and a second support ring arranged in a spaced manner with the first support ring, the first support ring is arranged around the first magnetic circuit system, and the second support ring is arranged around the second magnetic circuit system.

[0011] Preferably, the support ring further comprises a second connecting portion connecting the first support ring and the second support ring, and the second connecting portion is fixed to the first connecting portion.

[0012] Preferably, the first support ring and the second support ring each comprise a ring-shaped main body portion and an engaging portion extending from the ring-shaped main body portion and fixed to the damping member, and the ring-shaped main body portion is fixed to the yoke.

[0013] Preferably, the multi-magnetic-circuit-structure loudspeaker further comprises an electrical connecting member fixed to the first connecting portion, the electrical connecting member comprises a first electrical connecting member and a second electrical connecting member arranged adjacent to the first electrical connecting member, the vibration system comprises a first voice coil and a second voice coil arranged in a spaced manner with the first voice coil, the first voice coil partially extends into the first magnetic circuit system, the second voice coil partially extends into the second magnetic circuit system, and the first voice coil and the second voice coil are electrically connected to an external circuit through the first electrical connecting member and the second electrical connecting member.

[0014] Preferably, the electrical connecting member comprises a first fixed portion electrically connected to the first voice coil, a second fixed portion electrically connected to the second voice coil, a third fixed portion electrically connected to the external circuit, and a third connecting portion connecting the first fixed portion, the second fixed portion, and the third fixed portion.

[0015] Preferably, the yoke further comprises a first protruding portion extending into the first receiving space and a second protruding portion extending into the second receiving space, the first protruding portion is fixed to the first support ring, and the second protruding portion is fixed to the second support ring. Advantages

[0016] The present application has the advantages that: the present application provides a multi-magnetic-circuit-structure loudspeaker, which comprises a support ring fixed to a yoke and arranged around a magnetic yoke and a damping member clamped between the magnetic yoke and the support ring, and the support ring and the damping member suspend the magnetic circuit system in a receiving space, compared with the related art, the present application combines the plurality of magnetic circuit systems with the support ring and the damping member fixed to the yoke, which can improve the installation stability of the plurality of magnetic circuit systems and achieve the damping effect of the multi-magnetic-circuit-structure loudspeaker. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments description. Obviously, the drawings in the following description only show some of the embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative effort based on these drawings also belong to the protection scope of the present application.

[0018] Fig. 1 is a perspective structural schematic view of a multi-magnetic-circuit-structure loudspeaker provided by Embodiment 1 of the present application;

[0019] Fig. 2 is a perspective structural schematic view of a multi-magnetic-circuit-structure loudspeaker provided by Embodiment 2 of the present application;

[0020] Fig. 3 is an exploded view of the multi-magnetic-circuit-structure loudspeaker shown in Fig. 1;

[0021] Fig. 4 is an exploded view of the multi-magnetic-circuit-structure loudspeaker shown in Fig. 2;

[0022] Fig. 5 is a sectional view of the multi-magnetic-circuit-structure loudspeaker shown in Fig. 1 along line A-A;

[0023] Fig. 6 is a sectional view of the multi-magnetic-circuit-structure loudspeaker shown in Fig. 1 along line B-B;

[0024] Fig. 7 is a perspective view of the multi-magnetic-circuit-structure loudspeaker shown in Fig. 1 with the diaphragm removed;

[0025] Fig. 8 is a sectional view of the multi-magnetic-circuit-structure loudspeaker shown in Fig. 2 along line C-C. Embodiments of the present application

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the protection scope of the present application.

[0027] Embodiment 1

[0028] Please refer to Fig. 1, Fig. 3 and Fig. 5-7 simultaneously, the present application provides a multi-magnetic-circuit-structure loudspeaker 100, which comprises a basket 1 with a receiving space 10, a vibration system 2 received in the receiving space 10, a magnetic circuit system 3 for driving the vibration system 2 to vibrate and make sound, a support ring 4 fixed to the basket 1, a damping member 5 clamped between the magnetic circuit system 3 and the support ring 4, and an electrical connecting member 6 fixed to the basket 1. The magnetic circuit system 3 comprises a first magnetic circuit system 31 and a second magnetic circuit system 32 arranged at intervals from the first magnetic circuit system 31. In other embodiments, the number of the magnetic circuit system 3 can also be three or more.

[0029] The yoke 1 comprises a main body 11 surrounding the receiving space 10 and a first connecting portion 12 connecting both sides of the main body 11, the first connecting portion 12 divides the receiving space 10 into a first receiving space 101 accommodating the first magnetic circuit system 31 and a second receiving space 102 accommodating the second magnetic circuit system 32, and the electric connector 6 is fixed to the first connecting portion 12.

[0030] The yoke 1 further comprises a first protruding portion 13 extending into the first receiving space 101 and a second protruding portion 14 extending into the second receiving space 102.

[0031] The vibration system 2 comprises a diaphragm 21 and a first voice coil 22 and a second voice coil 23 spaced from the first voice coil 22 for vibrating the diaphragm 21 to vibrate and emit sound, the diaphragm 21 comprises a folded ring portion 211, a fixed portion 212 connected to one end of the folded ring portion 211, and a flat portion 213 connected to the other end of the folded ring portion 211, the fixed portion 212 is fixed to the yoke 1, the flat portion 213 is provided with a reinforcing portion 214 on the side away from the voice coil 22, the first voice coil 22 partially extends into the first magnetic circuit system 31, the second voice coil 23 partially extends into the second magnetic circuit system 32, the first voice coil 22 comprises an inner coil portion 221 and an outer coil portion 222 extending along the entire circumference of the inner coil portion 211, similarly, the second voice coil 23 has the same structure as the first voice coil 22, and will not be described again, the first voice coil 22 comprises a first voice coil lead 223, the second voice coil 23 comprises a second voice coil lead 233, the first voice coil lead 223 extends along the top of the first protruding portion 13 to the first connecting portion 12 and is electrically connected to the electric connector 6, the second voice coil lead 233 extends along the top of the second protruding portion 14 to the first connecting portion 12 and is electrically connected to the electric connector 6, the first protruding portion 13 and the second protruding portion 14 are used to carry the first voice coil lead 223 and the second voice coil lead 233, in other embodiments, the number of voice coils 22 can also be three or more.

[0032] The first magnetic circuit system 31 comprises a magnetic yoke 311, a magnetic steel 312 arranged above the magnetic yoke 311, and a pole core 313 arranged above the magnetic steel 312, the magnetic yoke 311 comprises a bottom plate 3111 and a side wall 3112 bent and extended along the edge of the bottom plate 3111, the first voice coil 22 is suspended in a magnetic gap between the magnetic steel 312 and the side wall 3112, the support ring 4 is arranged around the magnetic yoke 311, and the damping member 5 is clamped between the support ring 4 and the side wall 3112, the second magnetic circuit system 32 has the same structure as the first magnetic circuit system 31 and will not be described again, and the support ring 4 and the damping member 5 suspend the magnetic circuit system 3 in the accommodation space 10, and the vibration of the magnetic circuit system 3 cancels at least part of the vibration generated by the vibration system 2.

[0033] The support ring 4 comprises a first support ring 41 and a second support ring 42 arranged in a spaced manner with the first support ring 41, the first support ring 41 is arranged around the first magnetic circuit system 31, and the second support ring 42 is arranged around the second magnetic circuit system 32.

[0034] The first support ring 41 and the second support ring 42 each comprise an annular main body part 411 and an engaging part 412 extending from the annular main body part 411 and fixed with the damping member 5, the annular main body part 411 is fixed with the basin frame 1, the first protruding part 13 is fixed with the first support ring 41, the second protruding part 14 is fixed with the second support ring 42, and the first support ring 41 and the second support ring 42 are of a split structure formed in a split manner.

[0035] The material of the support ring 4 is plastic, and the support ring 4 is connected with the basin frame 1 in a glue bonding manner, and in other embodiments, the material of the support ring 4 is metal.

[0036] The material of the damping member 5 is silica gel, and the damping member 5 is connected with the support ring 4 in a glue bonding manner, and in other embodiments, the material of the damping member 5 is rubber.

[0037] The first support ring 41 and the damping member 5 suspend the first magnetic circuit system 31 in the first accommodation space 101, the second support ring 42 and the damping member 5 suspend the second magnetic circuit system 32 in the second accommodation space 102, and the vibration of the magnetic circuit system 3 cancels at least part of the vibration generated by the vibration of the vibration system 2, the present application realizes the damping effect of the multi-magnetic circuit structure loudspeaker by fixing the single magnetic circuit system to the support ring 4 and the damping member 5 of the basin frame 1, and the support ring 4 and the damping member 5 are fixed to the basin frame 1 together, so that the magnetic circuit system 3 can be more conveniently and stably fixed on the basin frame 1.

[0038] The electric connector 6 includes a first electric connector 61 and a second electric connector 62 disposed adjacent to the first electric connector 61, the first electric connector 61 includes a first fixed part 611 electrically connected with the first voice coil 22, a second fixed part 612 electrically connected with the second voice coil 23, a third fixed part 613 electrically connected with an external circuit, and a third connecting part 614 connecting the first fixed part 611, the second fixed part 612, and the third fixed part 613, the second electric connector 62 includes a first fixed part 621 electrically connected with the first voice coil 22, a second fixed part 622 electrically connected with the second voice coil 23, a third fixed part 623 electrically connected with an external circuit, and a third connecting part 624 connecting the first fixed part 621, the second fixed part 622, and the third fixed part 623, the first voice coil lead 223 is electrically connected with the first fixed part 611 of the first electric connector 61 and the first fixed part 621 of the second electric connector 62, so as to realize the electrical connection between the first voice coil 22 and the external circuit, the second voice coil lead 233 is electrically connected with the second fixed part 612 of the first electric connector 61 and the second fixed part 622 of the second electric connector 62, so as to realize the electrical connection between the second voice coil 23 and the external circuit.

[0039] Embodiment 2

[0040] Please refer to FIG. 2, FIG. 4 and FIG. 8, the multi-magnetic circuit structure loudspeaker 100a of embodiment 2 is basically the same as the multi-magnetic circuit structure loudspeaker 100 of embodiment, and the same parts are not described again, compared with the multi-magnetic circuit structure loudspeaker of embodiment 1, the difference between embodiment 2 and embodiment 1 is that the structure of the support ring and the basket is different, the structure of the support ring and the basket of embodiment 2 is described as follows:

[0041] The basket 1a includes a main body part 11a surrounding to form the accommodation space and a first connecting part 12a connecting both sides of the main body part 11a, the first connecting part 12a divides the accommodation space 10a into a first accommodation space 101a accommodating the first magnetic circuit system 31a and a second accommodation space 102a accommodating the second magnetic circuit system 32a, and the electric connector 6a is fixed to the first connecting part 12a.

[0042] The support ring 4a includes a first support ring 41a surrounding the first magnetic circuit system 31a, a second support ring 42a surrounding the second magnetic circuit system 32a, and a second connecting part 43a connecting the first support ring 41a and the second support ring 42a, the second connecting part 43a is fixed to the first connecting part 12a, and the first support ring 41a, the second support ring 42a, and the second connecting part 43a are integrally formed as an integrated structure.

[0043] The support ring 4a is fixed to the yoke 1a and arranged around the magnetic circuit system 3a, the support ring 4a and the damping member 5a suspend the first magnetic circuit system 31a and the second magnetic circuit system 32a in the receiving space 10a together, the vibration of the magnetic circuit system 3a offsets at least part of the vibration generated by the vibration system 2a, the first magnetic circuit system 31a and the second magnetic circuit system 32a are combined with the support ring 4a and the damping member 5a to realize the damping effect of the multi-magnetic circuit structure loudspeaker, and the support ring 4a and the damping member 5a are fixed to the yoke 1a together, so that the magnetic circuit system 3a can be more conveniently and stably fixed on the yoke 1a.

[0044] Compared with the related art, the present application provides a multi-magnetic circuit structure loudspeaker, which comprises a yoke with a receiving space, a vibration system received in the receiving space, and at least two magnetic circuit systems for driving the vibration system to vibrate and sound, each of the magnetic circuit systems comprises a magnetic yoke and a magnetic steel arranged above the magnetic yoke, the magnetic yoke comprises a bottom plate and a side wall bent and extended along the edge of the bottom plate, the multi-magnetic circuit structure loudspeaker further comprises a support ring fixed to the yoke and arranged around the magnetic yoke, and a damping member clamped between the support ring and the side wall, the support ring and the damping member suspend the magnetic circuit system in the receiving space, and the vibration of the magnetic circuit system offsets at least part of the vibration generated by the vibration system, the support ring and the damping member of the present application suspend the magnetic circuit system in the receiving space, and the support ring and the damping member fixed to the yoke combine the multiple magnetic circuit systems, thereby improving the installation stability of the magnetic circuit system and realizing the damping effect of the multi-magnetic circuit structure loudspeaker.

[0045] The above only describes the embodiments of the present application, and it should be noted that those skilled in the art can make improvements without departing from the inventive concept, and these improvements are within the protection scope of the present application.

Claims

1. A multi-magnetic-circuit-structure loudspeaker comprising a frame having a receiving space, a vibration system received in the receiving space, and at least two magnetic-circuit systems for driving the vibration system to vibrate and sound, each of the magnetic-circuit systems comprising a magnetic yoke and a magnetic steel arranged above the magnetic yoke, the magnetic yoke comprising a bottom plate and a side wall bent and extended along an edge of the bottom plate, characterized in that, The multi-magnetic-circuit-structure loudspeaker further comprises a support ring fixed to the yoke and surrounding the magnetic yoke, and a damping member clamped between the support ring and the side wall, the support ring and the damping member suspending the magnetic circuit system in the accommodating space, and the magnetic circuit system vibration counteracts at least part of the vibration generated by the vibration system.

2. The multi-magnetic circuit structure loudspeaker of claim 1, wherein, The support ring is made of plastic or metal.

3. The multi-magnetic circuit structure loudspeaker of claim 1, wherein, The damping member is made of silica gel or rubber.

4. The multi-magnetic circuit structure loudspeaker of claim 1, wherein, The magnetic circuit system comprises a first magnetic circuit system and a second magnetic circuit system spaced from the first magnetic circuit system, the yoke comprises a main body part surrounding the accommodating space and a first connecting part connecting two sides of the main body part, the first connecting part divides the accommodating space into a first accommodating space accommodating the first magnetic circuit system and a second accommodating space accommodating the second magnetic circuit system.

5. The multi-magnetic circuit structure loudspeaker of claim 4, wherein, The support ring comprises a first support ring and a second support ring spaced from the first support ring, the first support ring surrounds the first magnetic circuit system, and the second support ring surrounds the second magnetic circuit system.

6. The multi-magnetic circuit structure loudspeaker of claim 5, wherein, The support ring further comprises a second connecting part connecting the first support ring and the second support ring, and the second connecting part is fixed to the first connecting part.

7. The multi-magnetic circuit structure loudspeaker of claim 5, wherein, The first support ring and the second support ring each comprise a ring-shaped main body part and an engaging part extending from the ring-shaped main body part and fixed to the damping member, and the ring-shaped main body part is fixed to the yoke.

8. The multi-magnetic circuit structure loudspeaker of claim 4, wherein, The multi-magnetic-circuit-structure loudspeaker further comprises an electrical connecting member fixed to the first connecting part, the electrical connecting member comprises a first electrical connecting member and a second electrical connecting member adjacent to the first electrical connecting member, the vibration system comprises a first voice coil and a second voice coil spaced from the first voice coil, the first voice coil partially extends into the first magnetic circuit system, the second voice coil partially extends into the second magnetic circuit system, and the first voice coil and the second voice coil are electrically connected to an external circuit through the first electrical connecting member and the second electrical connecting member.

9. The multi-magnetic circuit structure loudspeaker of claim 8, wherein, The electrical connecting member comprises a first fixed part electrically connected to the first voice coil, a second fixed part electrically connected to the second voice coil, a third fixed part electrically connected to the external circuit, and a third connecting part connecting the first fixed part, the second fixed part, and the third fixed part.

10. The multi-magnetic circuit structure loudspeaker of claim 5, wherein, The yoke further comprises a first protruding part extending into the first accommodating space and a second protruding part extending into the second accommodating space, the first protruding part is fixed to the first support ring, and the second protruding part is fixed to the second support ring.

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