CN214413032U

CN214413032U - Horn type loudspeaker

Info

Publication number: CN214413032U
Application number: CN202120315367.8U
Authority: CN
Inventors: 何朝阳; 杨磊
Original assignee: Changzhou Amt Co ltd
Current assignee: Changzhou Amt Co ltd
Priority date: 2020-12-21
Filing date: 2021-02-03
Publication date: 2021-10-15
Anticipated expiration: 2031-02-03
Also published as: WO2022134318A1; WO2022134274A1; CN214675646U

Abstract

The utility model provides a loudspeaker, including the casing and set up in magnetic circuit and vibration system in the casing, vibration system includes can produce the voice coil loudspeaker voice coil of vibration and receive under magnetic circuit's the magnetic field effect voice coil loudspeaker voice coil driven vibrating diaphragm, magnetic circuit is including establishing the first magnet and the second magnet of the both sides on the first direction of vibration system, first magnet includes the middle part magnet and establishes two at least lateral part magnets of the both sides on the second direction of middle part magnet. In the loudspeaker, a first magnetic induction line is formed between the middle magnet and the side magnet of the first magnet, a second magnetic induction line is formed between the first magnet and the second magnet, the magnetic field is enhanced, and the overall sensitivity of the loudspeaker can be increased.

Description

Horn type loudspeaker

Cross Reference to Related Applications

The present application claims priority from chinese patent application filed on 21/12/2020, having application number 202023104636.0 and entitled "horn", which is incorporated herein by reference in its entirety.

Technical Field

The utility model relates to an audio frequency technical field.

Background

Loudspeaker include vibrating diaphragm, voice coil loudspeaker voice coil and magnet, and a magnet is established below the voice coil loudspeaker voice coil usually, and the voice coil loudspeaker voice coil vibrates under the effect in magnetic field, drives the vibrating diaphragm vibration. The voice coil and the magnet of many horns have simple structures, and the overall sensitivity of the horn is low.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the present invention is to provide an improved speaker for the above-mentioned defects in the related art.

The utility model provides a technical scheme that its technical problem adopted includes: the loudspeaker comprises a shell, and a magnetic circuit system and a vibration system which are arranged in the shell, wherein the vibration system comprises a voice coil and a vibrating diaphragm, the voice coil can generate vibration under the action of a magnetic field of the magnetic circuit system, the vibrating diaphragm is driven by the voice coil, the magnetic circuit system comprises a first magnet and a second magnet which are arranged on two sides of the vibration system in a first direction, and the first magnet comprises a middle magnet and at least two side magnets which are arranged on two sides of the middle magnet in a second direction.

Preferably, the second magnet is provided inside the housing or embedded in the housing.

Preferably, the housing is provided with a second opening penetrating through the inside and the outside, and the second magnet is embedded in the second opening.

Preferably, the second magnet is arranged on the inner side of the shell, and a positioning part matched with the outer side of the second magnet is arranged on the inner side of the shell.

Preferably, the first magnet is provided inside the housing or embedded in the housing.

Preferably, an insertion groove is provided inside the housing, and the first magnet is inserted into the insertion groove.

Preferably, the housing is provided with a first opening which penetrates through the inside and the outside and is matched with the first magnet in shape, and the first magnet is embedded in the first opening.

Preferably, the second magnet is located corresponding to the middle magnet.

Preferably, the number of the second magnets is one, and the width of the second magnets corresponds to the width of the middle magnet.

Preferably, the first direction is perpendicular to the second direction.

Preferably, the voice coil is provided on a side of the diaphragm facing the first magnet and/or a side facing the second magnet.

Preferably, the diaphragm is disposed between the first magnet and the second magnet.

Preferably, the horn includes two of the vibration systems arranged at an interval in the first direction, the magnetic circuit system includes two sets of the first magnets arranged at an interval in the first direction, the two vibration systems are provided between the two magnetic circuit systems, and the second magnet is provided between the two vibration systems.

Implement the technical scheme of the utility model, following beneficial effect has at least: in the loudspeaker, a first magnetic induction line is formed between the middle magnet and the side magnet of the first magnet, a second magnetic induction line is formed between the first magnet and the second magnet, the magnetic field is enhanced, and the overall sensitivity of the loudspeaker can be 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 a perspective view of a horn of some embodiments of the present invention.

Fig. 2 is a schematic view of the internal structure of a horn according to a first embodiment of the present invention (S and N in the drawing indicate the polarities of the magnets).

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic view of the internal structure of a horn according to a second embodiment of the present invention (S and N in the drawing indicate the polarities of the magnets).

Fig. 5 is a partially enlarged view of a portion B in fig. 4.

Fig. 6 is a schematic diagram of the positional relationship of the first and second magnets of the horn according to some embodiments of the present invention.

Fig. 7 is a schematic view of an internal structure of a horn according to a fourth embodiment of the present invention.

Fig. 8 is a schematic view of an internal structure of a horn according to a fifth embodiment of the present invention.

Fig. 9 is a schematic view of an internal structure of a horn according to a sixth embodiment of the present invention.

Fig. 10 is a schematic view of an internal structure of a horn according to a seventh embodiment of the present invention.

Fig. 11 is a schematic internal structural view of a horn according to an eighth embodiment of the present invention.

Fig. 12 is a schematic internal structural view of a horn according to a ninth embodiment of the present invention.

Fig. 13 is a schematic internal structural view of a horn according to a tenth embodiment of the present invention.

Fig. 14 is a schematic internal structural view of a horn according to an eleventh embodiment of the present invention.

The reference numerals in the figures denote: the magnetic circuit system 1, the first magnet 11, the middle magnet 111, the side magnet 112, the second magnet 12, the first magnetic induction line 13, the second magnetic induction line 14, the vibration system 2, the diaphragm 21, the voice coil 22, the housing 3, the upper cover 31, the lower cover 32, the first direction 41, the second direction 42, the third direction 43, the first opening 3a, the second opening 3b, and the positioning portion 3 c.

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. It should be understood that if the terms "front", "back", "upper", "lower", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are used herein to indicate an orientation or positional relationship, they are constructed and operated in a particular orientation based on the orientation or positional relationship shown in the drawings, but are only for convenience of describing the present invention, and do not indicate that the device or component being referred to must have a particular orientation, and therefore, should not be construed as limiting the present invention. It is also to be understood that, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," "disposed," and the like, if used herein, are intended to be inclusive, e.g., that they may be fixedly connected, detachably connected, or integrally formed; 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. If the terms "first", "second", "third", etc. are used herein only for convenience in describing the present technical solution, they are not to be taken 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. 1 to 6, the speaker of an embodiment 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 voice coil 22 capable of generating vibration under the action of a magnetic field of the magnetic circuit system 1 and a diaphragm 21 driven by the voice coil 22, the magnetic circuit system 1 includes a first magnet 11 and a second magnet 12 disposed on two sides of the vibration system 2 in a first direction 41, and the first magnet 11 includes a middle magnet 111 and at least two side magnets 112 disposed on two sides of the middle magnet 111 in a second direction 42.

In this horn, the first magnetic induction line 13 is formed between the middle magnet 111 and the side magnet 112 of the first magnet 11, and the second magnetic induction line 14 is formed between the first magnet 11 and the second magnet 12, so that the magnetic field is increased, and F is increased after B is increased according to the left-hand rule F BIL, so that the force applied to the voice coil 22 is increased, and the overall sensitivity of the horn is increased. The housing 3 may be square or circular in shape. The loudspeaker can be applied to the loudspeaker fields of earphone loudspeakers, mobile phone receivers, mobile phone loudspeakers, pen-type electric loudspeakers and the like.

Fig. 2-5 and 7-14 illustrate various arrangements of the first magnet 11 and the second magnet 12.

The second magnet 12 is provided inside the housing 3 or embedded in the housing 3. Preferably, the housing 3 includes an upper cover 31 and a lower cover 32, and the second magnet 12 is provided inside the upper cover 31 as in fig. 2-3 or embedded in the upper cover 31 as in fig. 4-5.

Referring to fig. 4-5, the housing 3 may be provided with a second opening 3b penetrating the inside and outside and matching the shape of the second magnet 12, the second magnet 12 is embedded in the second opening 3b, and preferably, the side of the second magnet 12 exposed out of the housing 3 is flush with the outside of the housing 3.

Referring to fig. 2-3, the second magnet 12 is disposed inside the housing 3, and may be directly adhered to the inside of the housing 3, and the housing 3 may be made of plastic or metal. Referring to fig. 7, the inside of the housing 3 may be provided with a positioning part 3c matching the outside of the second magnet 12, and the positioning part 3c is preferably an annular body surrounding the second magnet 12, and the shape of the annular body matches the shape of the second magnet 12. During manufacturing, the shell 3 can be made of plastic materials, the second magnet 12 is arranged in an injection mold, and the shell 3 fixedly connected with the second magnet 12 is formed through injection molding, so that the second magnet 12 is embedded in the shell 3; alternatively, the housing 3 provided with the positioning portion 3c may be injection molded, and then the second magnet 12 may be fixed to the housing 3 by positioning the positioning portion 3c, for example, by being stuck to the housing 3.

The first magnet 11 may be provided inside the housing 3 or embedded in the housing 3.

Referring to fig. 2-3, the first magnet 11 is disposed inside the housing 3 and may be directly adhered to the inside of the housing 3. Referring to fig. 8, the housing 3 is provided at an inner side thereof with an insertion groove in which the first magnet 11 is inserted. During manufacturing, the shell 3 can be made of plastic materials, the first magnet 11 is arranged in an injection mold, and the shell 3 fixedly connected with the first magnet 11 is formed through injection molding, so that the first magnet 11 is embedded in the shell 3; alternatively, the housing 3 provided with the insertion groove may be injection-molded, and the first magnet 11 may be inserted into the insertion groove. Referring to fig. 9, the housing 3 of this embodiment is provided with a positioning portion 3c and an embedded groove in which the first magnet 11 and the second magnet 12 are embedded, respectively.

Referring to fig. 10, the housing 3 may be provided with a first opening 3a penetrating through the inside and outside and matching the shape of the first magnet 11, the first magnet 11 is embedded in the first opening 3a, and preferably, the side surface of the first magnet 11 exposed out of the housing 3 is flush with the outside of the housing 3. Referring to fig. 11, the housing 3 of this embodiment is provided with a first opening 3a and a second opening 3b penetrating inside and outside, and a first magnet 11 and a second magnet 12 are embedded in the first opening 3a and the second opening 3b, respectively.

The second magnet 12 is located corresponding to the middle magnet 111. The number of the first magnets 11 may be at least one. When the number of the second magnets 12 is one, the width of the second magnets 12 corresponds to the width of the middle magnet 111, and the second magnetic induction line 14 is formed between the middle magnet 111 and the second magnets 12.

The number of the middle magnets 111 is preferably one. The number of the side magnets 112 is preferably two.

The first magnet 11 and/or the second magnet 12 are bar magnets, preferably both bar magnets.

The first direction 41 is perpendicular to the second direction 42, and preferably, the first direction 41 is a longitudinal direction and the second direction 42 is a transverse direction. The length direction of the bar magnet is a third direction 43, and the first direction 41, the second direction 42 and the third direction 43 are perpendicular to each other in pairs.

In the vibration system 2, the diaphragm 21 is provided between the first magnet 11 and the second magnet 12, the voice coil 22 is provided on the diaphragm 21, the voice coil 22 is preferably a racetrack-shaped voice coil 22, and the position of a part of the voice coil 22 corresponds to the gap between the middle magnet 111 and the side magnet 112.

Further, the voice coil 22 is disposed on a side of the diaphragm 21 facing the first magnet 11 and/or a side facing the second magnet 12. Referring to fig. 2 to 3, the voice coil 22 may be provided on a side of the diaphragm 21 facing the first magnet 11; referring to fig. 12, a voice coil 22 may be provided on a side of the diaphragm 21 facing the second magnet 12; referring to fig. 13, the voice coils 22 are disposed on both sides of the diaphragm 21 facing the first magnet 11 and the second magnet 12, that is, the diaphragm 21 is provided with the voice coils 22 on both sides, and the number of the voice coils 22 is at least two.

Referring to fig. 14, the horn may include two vibration systems 2 spaced apart in the first direction 41, each vibration system 2 includes the diaphragm 21 and the voice coil 22, one voice coil 22 is disposed on one diaphragm 21, the magnetic circuit system 1 includes two sets of the first magnets 11 spaced apart in the first direction 41, the two vibration systems 2 are disposed between the two magnetic circuit systems 1, and the second magnet 12 is disposed between the two vibration systems 2.

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, characterized by comprising a housing (3) and a magnetic circuit system (1) and a vibration system (2) arranged in the housing (3), wherein the vibration system (2) comprises a voice coil (22) capable of generating vibration under the action of a magnetic field of the magnetic circuit system (1) and a diaphragm (21) driven by the voice coil (22), the magnetic circuit system (1) comprises a first magnet (11) and a second magnet (12) arranged on two sides of the vibration system (2) in a first direction (41), and the first magnet (11) comprises a middle magnet (111) and at least two side magnets (112) arranged on two sides of the middle magnet (111) in a second direction (42).

2. The horn according to claim 1, characterized in that the second magnet (12) is provided inside the housing (3) or embedded in the housing (3).

3. A horn according to claim 2, characterised in that the housing (3) is provided with a second opening (3b) through the inside and outside, the second magnet (12) being embedded in the second opening (3 b).

4. The horn according to claim 2, wherein the second magnet (12) is provided inside the housing (3), and the inside of the housing (3) is provided with a positioning portion (3c) matching the outside of the second magnet (12).

5. The horn according to claim 1, characterized in that the first magnet (11) is provided inside the housing (3) or embedded in the housing (3).

6. The horn according to claim 1, characterized in that the housing (3) is provided inside with an embedded slot in which the first magnet (11) is embedded.

7. The horn according to claim 1, wherein the housing (3) is provided with a first opening (3a) through the inside and outside thereof matching the shape of the first magnet (11), the first magnet (11) being embedded in the first opening (3 a).

8. A horn according to claim 1, characterized in that the second magnet (12) is located in correspondence of the central magnet (111).

9. The horn according to claim 5, characterized in that the number of the second magnets (12) is one, the width of the second magnets (12) corresponding to the width of the central magnet (111).

10. A horn according to claim 1, characterized in that said first direction (41) is perpendicular to said second direction (42).

11. A loudspeaker as claimed in claim 1, characterized in that the voice coil (22) is provided on the side of the diaphragm (21) facing the first magnet (11) and/or on the side facing the second magnet (12).

12. A loudspeaker as claimed in claim 1, wherein the diaphragm (21) is arranged between the first magnet (11) and the second magnet (12).

13. The horn according to claim 1, wherein the horn comprises two of the vibrating systems (2) arranged at intervals in the first direction (41), the magnetic circuit system (1) comprises two sets of the first magnets (11) arranged at intervals in the first direction (41), the two vibrating systems (2) are provided between the two of the magnetic circuit systems (1), and the second magnet (12) is provided between the two vibrating systems (2).