CN210807645U

CN210807645U - Horn type loudspeaker

Info

Publication number: CN210807645U
Application number: CN201922245000.9U
Authority: CN
Inventors: 孟献振; 何朝阳; 丁传坤
Original assignee: Changzhou Amt Co ltd
Current assignee: Changzhou Amt Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-06-19
Anticipated expiration: 2029-12-13

Abstract

The utility model provides a loudspeaker, including the casing and set up magnetic circuit and the vibration system in the casing, vibration system is including producing the coil of vibration and receiving coil driven vibrating diaphragm under magnetic circuit's magnetic field effect, and magnetic circuit includes a plurality of horizontal magnets that set gradually on horizontal and vertical establishes at least one of the side of at least one horizontal magnet and indulges the magnet, indulges the magnet and produces the magnetic field that makes the coil vibration with at least one horizontal magnet. Implement the technical scheme of the utility model, produce transverse magnetic field between each horizontal magnet, correspond with the horizontal both sides part of vibration system's coil, indulge the magnetic field that produces between magnet and the horizontal magnet and become certain angle with transverse magnetic field, can correspond with the vertical both sides part of coil, more fully utilized the coil, greatly increased leads to magnetism conversion efficiency.

Description

Horn type loudspeaker

Technical Field

The utility model belongs to the technical field of acoustics and specifically relates to a loudspeaker are related to.

Background

A common structure of the existing speaker is shown in fig. 1, and includes a magnetic circuit system 4 and a vibration system 5, where the vibration system 5 includes a coil 51 and a diaphragm, the magnetic circuit system 4 includes three magnets 41 arranged in sequence, and a magnetic field is generated between two adjacent magnets 41 to vibrate the coil, so as to drive the diaphragm, thereby making the speaker sound. However, the magnetic flux conversion efficiency of the magnetic circuit system 4 and the vibration system 5 is low.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect in the background art, provide a logical higher loudspeaker of magnetism conversion efficiency.

It is found that the horn in the background art has low magnetic conduction conversion efficiency because the transverse magnetic field generated by the magnet 41 in the magnetic circuit system 4 acts only on the transverse side 511 of the coil 51, that is, only a part of the coil 51 is utilized, and the utilization rate of the coil 51 is low, and the magnetic conduction conversion efficiency is low.

The utility model provides a technical scheme that its technical problem adopted is: a loudspeaker is constructed, comprising a shell, and a magnetic circuit system and a vibration system which are arranged in the shell, wherein the vibration system comprises a coil which can generate vibration under the action of the magnetic field of the magnetic circuit system and a vibrating diaphragm driven by the coil, the magnetic circuit system comprises a plurality of transverse magnets which are sequentially arranged in the transverse direction and at least one longitudinal magnet which is arranged at the side of at least one transverse magnet in the longitudinal direction, and the longitudinal magnet and at least one transverse magnet generate a magnetic field which enables the coil to vibrate.

Preferably, the longitudinal magnets are all arranged on one side of at least one transverse magnet;

or the at least one longitudinal magnet comprises at least two longitudinal magnets, and the longitudinal magnets are respectively arranged on the two longitudinal sides of the at least one transverse magnet.

Preferably, the longitudinal magnets are provided on longitudinal sides of all the transverse magnets.

Preferably, the plurality of transverse magnets includes a middle magnet, a first magnet provided at a transverse first side of the middle magnet, and a second magnet provided at a transverse second side of the middle magnet.

Preferably, the vertical magnet is provided on a longitudinal side of the middle magnet and the first magnet, and the second magnet is provided on a lateral side of the middle magnet and the vertical magnet.

Preferably, the height of the horizontal magnet is the same as that of the vertical magnet, or the height difference exists between the middle magnet, the first magnet and the vertical magnet and the second magnet.

Preferably, the longitudinal magnet is provided on a longitudinal side of the first magnet, and the middle magnet and the second magnet are provided on a lateral side of the middle magnet and the longitudinal magnet.

Preferably, the longitudinal magnet is disposed at a longitudinal side of the middle magnet, and the first magnet and the second magnet are disposed at a lateral side of the middle magnet and a lateral side of the longitudinal magnet, respectively.

Preferably, the plurality of transverse magnets includes a middle magnet, a first magnet provided at a first lateral side of the middle magnet, and a second magnet provided at a second lateral side of the middle magnet; at least one indulges the magnet and includes third magnet and fourth magnet, the third magnet is established the middle part magnet with the vertical first side of first magnet, the fourth magnet is established the middle part magnet with the vertical second side of second magnet, the first magnet is established the middle part magnet with the horizontal first side of fourth magnet, the second magnet is established the middle part magnet with the horizontal second side of third magnet.

Preferably, the transverse magnets are aligned with the outer sides of the longitudinal magnets in the transverse direction, and/or the transverse magnets are aligned with the outer sides of the longitudinal magnets in the longitudinal direction.

Implement the technical scheme of the utility model, following beneficial effect has at least: in the magnetic circuit system of the loudspeaker, a transverse magnetic field is generated between the transverse magnets and corresponds to the transverse two side parts of the coil of the vibration system, and a magnetic field generated between the longitudinal magnet and the transverse magnet forms a certain angle with the transverse magnetic field, for example, the longitudinal magnetic field is vertical, so that the transverse magnetic field and the longitudinal two side parts of the coil can correspond to each other, the coil is more fully utilized, and the magnetic conduction conversion efficiency is greatly increased.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is an exploded view of a horn of the background art.

Fig. 2 is a perspective view of a coil of a horn of the background art.

Fig. 3 is a perspective view of a horn according to some embodiments of the present invention.

Fig. 4 is a top view of the horn of fig. 3.

Fig. 5 is a sectional view taken at a position a-a in fig. 4.

Fig. 6 is an exploded view of the horn of fig. 3.

Figure 7 is another exploded view of the horn of figure 3.

Fig. 8 is a perspective view of the coil of fig. 7.

Fig. 9 is a perspective view of a magnetic circuit system of a horn according to a first embodiment of the present invention.

Fig. 10 is a perspective view of a magnetic circuit system of a horn according to an example of the second embodiment of the present invention.

Fig. 11 is a perspective view of a magnetic circuit system of a horn according to another example of the second embodiment of the present invention.

Fig. 12 is a perspective view of a magnetic circuit system of a horn according to a third embodiment of the present invention.

Fig. 13 is a perspective view of a magnetic circuit system of a horn according to a fourth embodiment of the present invention.

Fig. 14 is a perspective view of a magnetic circuit system of a horn according to a fifth embodiment of the present invention.

The reference numerals in the figures denote: the magnetic circuit system 1, the transverse magnet 11, the middle magnet 110, the first magnet 111, the second magnet 112, the longitudinal magnet 12, the third magnet 121, the fourth magnet 122, the vibration system 2, the coil 21, the transverse side 211, the longitudinal side 212, the diaphragm 22, and the housing 3.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention, but do not indicate that the device or element referred to must have a specific direction, and thus, should not be construed as limiting the present invention.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

Referring to fig. 2-8, the horn in some embodiments of the present invention includes a housing 3, and a magnetic circuit system 1 and a vibration system 2 disposed in the housing 3, wherein the vibration system 2 includes a coil 21 capable of generating vibration under the action of a magnetic field of the magnetic circuit system 1 and a diaphragm 22 driven by the coil 21, the magnetic circuit system 1 includes a plurality of transverse magnets 11 disposed in sequence in a transverse direction and at least one longitudinal magnet 12 disposed in a side of the at least one transverse magnet 11 in the longitudinal direction, and the longitudinal magnet 12 and the at least one transverse magnet 11 generate a magnetic field for vibrating the coil 21. Accordingly, a transverse magnetic field is generated between the transverse magnets 11 of the magnetic circuit system 1, corresponding to the transverse side 211 of the coil 21 of the vibration system 2, and a magnetic field generated between the longitudinal magnet 12 and the transverse magnet 11 is at an angle, for example, longitudinal, with respect to the transverse magnetic field, so that the transverse magnetic field can correspond to the longitudinal side 212 of the coil 21 (for example, the bent portions 212 on both sides of the coil 21 in the longitudinal direction of fig. 8), and the coil 21 is more fully utilized, thereby greatly increasing the magnetic conduction conversion efficiency.

Further, the longitudinal magnets 12 are all arranged on one side of at least one transverse magnet 11; or, the at least one longitudinal magnet 12 includes at least two longitudinal magnets 12, and the at least two longitudinal magnets 12 are respectively disposed on two longitudinal sides of the at least one transverse magnet 11.

Referring to fig. 9, in the first embodiment of the present invention, the longitudinal magnets 12 are disposed at longitudinal sides of all the transverse magnets 11. Wherein, the longitudinal magnets 12 can be at least two and are respectively arranged at the longitudinal two sides of all the transverse magnets 11; for example, in the embodiment of fig. 9, two longitudinal magnets 12, i.e., a third magnet 121 and a fourth magnet 122, are disposed on both sides of the longitudinal direction of all the transverse magnets 11. Further, the longitudinal magnets 12 may be provided only on one side in the longitudinal direction of all the transverse magnets 11. Preferably, the longitudinal dimension of each transversal magnet 11 is comparable, and the transverse dimension of the longitudinal magnets 12 is comparable to the span of all transversal magnets 11. The plurality of transverse magnets 11 include a central magnet 110, a first magnet 111 provided at a first lateral side of the central magnet 110, and a second magnet 112 provided at a second lateral side of the central magnet 110.

In the second embodiment of the present invention, referring to fig. 10, the longitudinal magnet 12 is disposed on the longitudinal side of the middle magnet 110 and the first magnet 111, and the second magnet 112 is disposed on the transverse side of the middle magnet 110 and the longitudinal magnet 12. Wherein, the longitudinal magnets 12 may be at least two and are respectively arranged at the longitudinal two sides of the middle magnet 110 and the first magnet 111; for example, in the embodiment of fig. 10, two longitudinal magnets 12, i.e., a third magnet 121 and a fourth magnet 122, are disposed on both longitudinal sides of the middle magnet 110 and the first magnet 111, respectively. The longitudinal magnet 12 may be provided only on one side in the longitudinal direction of the middle magnet 110 and the first magnet 111. Preferably, the central magnet 110 corresponds to the longitudinal dimension of the first magnet 111, the second magnet 112 corresponds to the longitudinal span of the central magnet 110 and the longitudinal magnet 12, and the lateral dimension of the longitudinal magnet 12 corresponds to the span of the central magnet 110 and the first magnet 111. Further, with respect to the heights of the longitudinal magnets 12 and the transverse magnets 11, the transverse magnets 11 may be identical to the height of the longitudinal magnets 12 as shown in fig. 10, or the central magnet 110, the first magnet 111, and the longitudinal magnets 12 have a height difference from the second magnet 112 as shown in fig. 11. The uniform height and the differential height structure can be respectively adapted to the coils 21 with different structures.

In the third embodiment of the present invention, referring to fig. 12, the longitudinal magnet 12 is disposed at the longitudinal side of the first magnet 111, and the middle magnet 110 and the second magnet 112 are disposed at the lateral side of the middle magnet 110 and the longitudinal magnet 12. Wherein, the longitudinal magnets 12 may be at least two and respectively arranged at both longitudinal sides of the first magnet 111; for example, in the embodiment of fig. 12, two longitudinal magnets 12, i.e., a third magnet 121 and a fourth magnet 122, are disposed on both sides of the first magnet 111 in the longitudinal direction. Further, the longitudinal magnet 12 may be provided only on one side in the longitudinal direction of the first magnet 111. Preferably, the longitudinal dimensions of the central magnet 110 and the second magnet 112 are comparable to the longitudinal span of said first magnet 111 and the longitudinal magnet 12, and the transverse dimensions of the longitudinal magnet 12 are comparable to the transverse dimensions of the central magnet 110.

In the fourth embodiment of the present invention, referring to fig. 13, the longitudinal magnet 12 is disposed at the longitudinal side of the middle magnet 110, and the first magnet 111 and the second magnet 112 are disposed at the lateral sides of the middle magnet 110 and the longitudinal magnet 12, respectively. Here, the longitudinal magnets 12 may have at least two and are respectively disposed at both longitudinal sides of the middle magnet 110, for example, in the embodiment of fig. 13, and the longitudinal magnets 12 have two, respectively, third and

fourth magnets

121 and 122, respectively disposed at both longitudinal sides of the middle magnet 110. Further, the longitudinal magnet 12 may be provided only on one side in the longitudinal direction of the middle magnet 110. Preferably, the longitudinal dimension of the first and

second magnets

111, 112 is comparable to the span of the central magnet 110 and the longitudinal magnets 12, and the transverse dimension of the longitudinal magnets 12 is comparable to the transverse dimension of the central magnet 110.

In a fifth embodiment of the present invention, referring to fig. 14, the plurality of horizontal magnets 11 include a first magnet 111 having a middle magnet 110 disposed on a first lateral side of the middle magnet 110 and a second magnet 112 disposed on a second lateral side of the middle magnet 110; the at least one longitudinal magnet 12 includes a third magnet 121 and a fourth magnet 122, the third magnet 121 is disposed on a longitudinal first side of the middle magnet 110 and the first magnet 111, the fourth magnet 122 is disposed on a longitudinal second side of the middle magnet 110 and the second magnet 112, the first magnet 111 is disposed on a lateral first side of the middle magnet 110 and the fourth magnet 122, and the second magnet 112 is disposed on a lateral second side of the middle magnet 110 and the third magnet 121. Preferably, the longitudinal dimension of the first magnet 111 is equivalent to the longitudinal span of the middle magnet 110 and the fourth magnet 122, the longitudinal dimension of the second magnet 112 is equivalent to the longitudinal span of the middle magnet 110 and the third magnet 121, the transverse dimension of the third magnet 121 is equivalent to the transverse span of the middle magnet 110 and the first magnet 111, and the longitudinal dimension of the fourth magnet 122 is equivalent to the transverse span of the middle magnet 110 and the second magnet 112.

For each of the above embodiments, it is preferable that the lateral transverse magnets 11 are aligned with the outer sides of the longitudinal magnets 12 in the lateral direction, and/or the lateral transverse magnets 11 are aligned with the outer sides of the longitudinal magnets 12 in the longitudinal direction, so that the lateral and/or longitudinal outer sides of the entire magnetic circuit system 1 have a flat profile.

In each of the above embodiments, referring to fig. 9 to 14, the polarities of the transverse magnets 11 and the longitudinal magnets 12 may be as follows, with the upper polarity: the middle magnet is N, and the first to fourth magnets are S; while the lower portion has a polarity opposite to the upper portion (not shown). Understandably, the N and S interchanges of magnet polarities are also possible for the various embodiments as shown in FIGS. 9-14.

To sum up, in the magnetic circuit system 1 of the horn of the present invention, the transverse magnetic field is generated between each transverse magnet 11, corresponding to the transverse side portion 211 of the coil 21 of the vibration system 2, and the magnetic field generated between the longitudinal magnet 12 and the transverse magnet 11 forms a certain angle with the transverse magnetic field, for example, is longitudinal, so as to correspond to the longitudinal side portion 212 of the coil 21, and the coil 21 is more fully utilized, and the magnetic conversion efficiency is greatly increased.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, which may be modified, combined, and varied by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A loudspeaker comprises a shell (3) and a magnetic circuit system (1) and a vibration system (2) which are arranged in the shell (3), wherein the vibration system (2) comprises a coil (21) which can generate vibration under the action of a magnetic field of the magnetic circuit system (1) and a diaphragm (22) driven by the coil (21), and is characterized in that the magnetic circuit system (1) comprises a plurality of transverse magnets (11) which are sequentially arranged in the transverse direction and at least one longitudinal magnet (12) which is arranged on the side of at least one transverse magnet (11) in the longitudinal direction, and the longitudinal magnet (12) and at least one transverse magnet (11) generate a magnetic field which enables the coil (21) to vibrate.

2. Horn according to claim 1, wherein the longitudinal magnets (12) are all arranged on one side of at least one of the transverse magnets (11);

or the at least one longitudinal magnet (12) comprises at least two longitudinal magnets (12), and the longitudinal magnets (12) are respectively arranged on two longitudinal sides of the at least one transverse magnet (11).

3. A horn according to claim 1 or 2, characterised in that the longitudinal magnets (12) are provided longitudinally laterally of all the transverse magnets (11).

4. The horn of claim 1, wherein the plurality of transverse magnets (11) comprises a central magnet (110), a first magnet (111) disposed on a first lateral side of the central magnet (110), and a second magnet (112) disposed on a second lateral side of the central magnet (110).

5. The horn of claim 4, wherein the longitudinal magnet (12) is disposed longitudinally lateral to the central magnet (110) and the first magnet (111), and the second magnet (112) is disposed laterally lateral to the central magnet (110) and the longitudinal magnet (12).

6. The horn of claim 5, characterized in that the transverse magnet (11) coincides in height with the longitudinal magnet (12), or the central magnet (110), the first magnet (111) and the longitudinal magnet (12) have a difference in height with the second magnet (112).

7. The horn of claim 4, wherein the longitudinal magnet (12) is disposed longitudinally lateral to the first magnet (111), and the central magnet (110) and the second magnet (112) are disposed laterally to one side of the central magnet (110) and the longitudinal magnet (12).

8. The horn of claim 4, wherein the longitudinal magnet (12) is disposed longitudinally lateral to the central magnet (110), and the first magnet (111) and the second magnet (112) are disposed laterally on both sides of the central magnet (110) and the longitudinal magnet (12), respectively.

9. The horn of claim 1, wherein the plurality of transverse magnets (11) comprises a central magnet (110), a first magnet (111) disposed on a first lateral side of the central magnet (110), and a second magnet (112) disposed on a second lateral side of the central magnet (110); at least one vertical magnet (12) includes third magnet (121) and fourth magnet (122), third magnet (121) are established middle part magnet (110) with the vertical first side of first magnet (111), fourth magnet (122) are established middle part magnet (110) with the vertical second side of second magnet (112), first magnet (111) are established middle part magnet (110) with the horizontal first side of fourth magnet (122), second magnet (112) are established middle part magnet (110) with the horizontal second side of third magnet (121).

10. Horn according to claim 1, wherein the transversal magnets (11) are aligned laterally with the outer sides of the longitudinal magnets (12) and/or the transversal magnets (11) are aligned longitudinally with the outer sides of the longitudinal magnets (12).