CN205595924U - A motor, receiver for acoustics device and audio equipment thereof - Google Patents

A motor, receiver for acoustics device and audio equipment thereof Download PDF

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Publication number
CN205595924U
CN205595924U CN201620244280.5U CN201620244280U CN205595924U CN 205595924 U CN205595924 U CN 205595924U CN 201620244280 U CN201620244280 U CN 201620244280U CN 205595924 U CN205595924 U CN 205595924U
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Prior art keywords
armature
motor
magnetic support
support parts
lobe
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CN201620244280.5U
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Chinese (zh)
Inventor
张亚辉
邱威豪
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Lou IPC (Malaysia) Pte Ltd
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Knowles Electronics LLC
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Priority to CN201620244280.5U priority Critical patent/CN205595924U/en
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Abstract

The application discloses a motor, receiver for acoustics device and audio equipment thereof, the motor includes armature, at least one magnet, coil and magnetism support component, the magnetism support component supports at least one magnet forms the clearance, the coil forms the passageway, the armature extension is passed passageway and clearance, the magnetism support component is in the armature contact can restrain during the magnetism support component the vibrations of armature.

Description

Motor, receptor and audio frequency apparatus thereof for acoustic apparatus
Technical field
The application relates to acoustic apparatus field, particularly relates to a kind of motor for acoustic apparatus, receptor and audio frequency apparatus thereof.
Background technology
Various types of mikes and receptor (transducer) have been used for many years.In these devices, different conductive component is all installed together in shell or assembly.Such as, receptor generally includes coil, bobbin, lamination and other parts, and these parts are all installed in receiver shell.Other type of acoustic apparatus can include other type of parts.Motor in receptor generally includes coil, magnet and armature, and they together form magnetic circuits.
Transducer can be used in the multiple application of such as sonifer or earphone etc.Also at such as wearable device, other application of personal computer or cell phone etc can use these devices.
As it has been described above, receptor has armature.Armature is a kind of moving component, and it shakes along with the change of electric current, thus causes the change in magnetic field in receptor.
Receptor may bear polytype impulsive force.Such as, if using receptor in sonifer, personal computer or cell phone, this device may drop.Such generation jerk that drops, its plastic deformation being likely to result in receptor vibration component even damages the normal function of receptor.
Utility model content
In view of the deficiencies in the prior art, the application provides a kind of motor for acoustic apparatus, including armature, at least one magnet, coil and magnetic support parts;At least one magnet described in described magnetic support member supporting forms gap, and described coil forms passage, and described armature extends through described passage and gap;Described magnetic support parts can suppress the vibrations of described armature when magnetic support parts described in described armature contacts.
As one preferred embodiment, part described magnetic support parts convex to form the lobe suppressing the vibrations of described armature.
As one preferred embodiment, described magnetic support parts include multiple annular lamination;The internal partial wall of at least one described annular lamination extends inwardly to form described lobe.
As one preferred embodiment, described annular lamination has rectangular opening, and described boss is on the limit of described rectangular opening.
As one preferred embodiment, described armature mutually back to both sides at least side be provided with described lobe.
As one preferred embodiment, described lobe is arranged near described overhang, and this end is near at least one magnet described.
As one preferred embodiment, described magnetic support parts connect the guard member suppressing the vibrations of described armature.
As one preferred embodiment, described armature mutually back to both sides at least side be provided with described guard member.
The application also provides for a kind of receptor, including the motor described in as above any embodiment.
The application also provides for a kind of audio frequency apparatus, including the receptor described in mode performed as described above
As one preferred embodiment, described audio frequency apparatus includes earphone or sonifer.
Borrow as can be seen from the above scheme, motor in the present embodiment is by being provided with described magnetic support parts, when being given a shock impact after motor drops, armature strikes magnetic support parts, disperse the impulsive force of armature, inhibit the flexural shock amplitude of armature, and then prevent armature by magnet absorption cisco unity malfunction.Therefore, armature can effectively be protected by the motor that the present embodiment is provided.
With reference to explanation hereinafter and accompanying drawing, disclose in detail particular implementation of the present utility model, specifying principle of the present utility model can be in adopted mode.It should be understood that embodiment of the present utility model is not so limited in scope.In the range of the spirit and terms of claims, embodiment of the present utility model includes many changes, revises and be equal to.
The feature described for a kind of embodiment and/or illustrate can use in one or more other embodiment in same or similar mode, combined with the feature in other embodiment, or substitutes the feature in other embodiment.
It should be emphasized that term " includes/comprise " existence referring to feature, one integral piece, step or assembly herein when using, but it is not precluded from the existence of one or more further feature, one integral piece, step or assembly or additional.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those skilled in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the motor schematic diagram that one embodiment of the application is provided;
Fig. 2 is the explosive view of motor shown in Fig. 1;
Fig. 3 is the magnetic support block diagram of motor shown in Fig. 1;
Fig. 4 is the fall-down test datagram with conventional motors of the motor shown in Fig. 1.
Detailed description of the invention
For the technical scheme making those skilled in the art be more fully understood that in the application, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application rather than whole embodiments.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art are obtained on the premise of not making creative work, all should belong to the scope of this utility model protection.
It should be noted that be referred to as " being arranged at " another element when element, it can be directly on another element or can also there is element placed in the middle.When an element is considered as " connection " another element, and it can be directly to another element or may be simultaneously present centering elements.For illustrative purposes only, being not offered as is unique embodiment for term as used herein " vertical ", " level ", "left", "right" and similar statement.
Unless otherwise defined, all of technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model are generally understood that.It is intended merely to describe the purpose of specific embodiment at term used in the description of the present utility model herein, it is not intended that in limiting this utility model.Term as used herein "and/or" includes the arbitrary and all of combination of one or more relevant Listed Items.
One embodiment of the application provides a kind of motor for acoustic apparatus, this motor can use in the multiple application of such as sonifer (HI) etc, also can be at such as wearable device, other devices of personal computer and cell phone etc use motor described herein, certainly, the example of other above-mentioned electro-acoustic conversion devices of use is also feasible.
Refer to Fig. 1 to Fig. 3, a kind of motor 1 for acoustic apparatus provided by one embodiment of the application.In this embodiment, the described motor 1 for acoustic apparatus includes armature 20, at least one magnet 40, coil 10 and magnetic support parts 30;Described magnetic support parts 30 support at least one magnet 40 described and form gap, and described coil 10 forms passage, and described armature 20 extends through described passage and gap;Described magnetic support parts 30 can suppress the vibrations of described armature 20 when described armature 20 contacts described magnetic support parts 30.
Scheme by this embodiment can be seen that, motor 1 in the present embodiment is by being provided with described magnetic support parts 30, when being given a shock impact after motor 1 drops, armature 20 strikes magnetic support parts 30, disperse the impulsive force of armature 20, inhibit the flexural shock amplitude of armature 20, and then prevent armature 20 from being adsorbed cisco unity malfunction by magnet 40.Therefore, armature 20 can effectively be protected by the motor 1 that the present embodiment is provided.
The effect above can also be confirmed in the diagram; it can be seen that the motor 1 (solid line) of the magnetic support parts 30 with above-mentioned functions that the present embodiment is provided can significantly improve protected effect than traditional motor 1 (dotted line) not possessing suppression armature 20 vibrating function when being given a shock impact.
When the motor 1 of the present embodiment is used for constituting receptor, described motor 1 may be used for giving in the receiver the power of diaphragm oscillations, makes vibrating diaphragm export sound.In motor 1, coil 10 is constituted a passage, and at least one magnet 40 can form a gap under the supporting role of magnetic support parts 30.Coil 10 can produce alternating magnetic field with input current in armature 20 when electric current flows through coil 10, armature 20 drives trundle motion then under the effect of magnet 40, thus causes diaphragm oscillations by trundle, and produces desired sound.Produced sound can be exported by an opening of the housing of receptor and sound tube.
Certainly, the example above is only the example that the present embodiment is applied to sonifer, and the application is not restricted to this, and such as, the electro-acoustic conversion device in the present embodiment can also be applied to earphone, mike etc..
In the present embodiment, described magnetic support parts 30 are referred to as yoke, yoke, and it can be made up of the material that permeability is higher.Magnetic support parts 30 entirety can form a body type structure, and at least one magnet 40 is positioned at the inside of described magnetic support parts 30.Generally, magnet 40 can be two and be rectangular blocks, and (when scope of readers is to Fig. 2) two magnets 40 can be placed in parallel up and down, and described gap is arranged between two magnets 40.
In prior art, owing to magnetic support parts 30 are generally disposed at the periphery of magnet 40, out in the cold its can be used for suppression armature 20 and shake the effect of (shock protection).And overcome this prejudice in this application, enable described magnetic support parts 30 to suppress the vibrations of described armature 20 when described armature 20 contacts described magnetic support parts 30.
Magnetic support parts 30 can obtain the function of suppression armature 20 vibrations by multiple structure, such as: magnetic support parts 30 can be extended by the part of self, it is also possible to connect the modes such as miscellaneous part by extra.Wherein, magnetic support parts 30 can reach to suppress by limiting the vibrations space of armature 20 purpose of armature 20 vibrations.
In a preferred embodiment, part described magnetic support parts 30 convex to form the lobe 300 suppressing the vibrations of described armature 20.Described magnetic support parts 30 can be formed in one structure (such as entirely through casting), it is also possible to being assembled by multiple subassemblies and formed, the application is not restricted, and only needs lobe 300 self to convex to form for magnetic support parts 30.
In the present embodiment, the protrusion direction of lobe 300 can be protruding (extension) towards armature 20.Under armature 20 resting state or under normal vibration state, gap can be there is between lobe 300 and armature 20 so that lobe 300 does not contact with armature 20, and then avoid interference sonifer or the formation of earphone sound under normal circumstances.But, when motor 1 is by being impacted by forms such as eminence drop, armature 20 meeting bad shocking and then contact projection portion 300 are (now, lobe 300 can have precedence over other parts and contact with armature 20), lobe 300 can disperse the impulsive force of armature 20, the flexural deformations that suppression armature 20 produces.
Concrete as it is shown on figure 3, in this embodiment, described magnetic support parts 30 can include multiple annular lamination 31;The internal partial wall of at least one described annular lamination 31 extends inwardly to form described lobe 300.Wherein, multiple annular laminations 31 are stacked together by the way of endoporus aligns and form magnetic support parts 30.Adjacent two annular laminations 31 can carry out bonding by aspectant form.
In multiple annular laminations 31, the annular lamination 31 with lobe 300 can one (sheet), it is also possible to for multiple.In the case of only one of which annular lamination 31 has lobe 300, this lobe 300 may be located at the end position of magnetic support parts 30, it is also possible to is positioned at the medium position of magnetic support parts 30, and the application is not restricted.In the case of multiple annular laminations 31 have lobe 300, multiple annular laminations 31 can disperse arrangement can also be close to arrangement, and the application is not the most restricted.
Concrete, described annular lamination 31 can have rectangular opening 32, and described lobe 300 is positioned on the limit of described rectangular opening 32.It is also preferred that the left as it is shown on figure 3, described lobe 300 can be arranged on the long limit of described rectangular opening 32.The shape of annular lamination 31 can be suitable with the shape of its endoporus (rectangular opening 32), its same substantially rectangular lamellar body.As it is shown on figure 3, the lower surface of lobe 300 can be plane, to obtain good armature 20 damping effect.
Please continue to refer to Fig. 3, described armature 20 mutually back to both sides at least side can be provided with described lobe 300.It is also preferred that the left armature 20 mutually back to both sides all can be provided with lobe 300, and then no matter armature 20 either side generation jerk, all armature 20 can be effectively protected.
In the present embodiment, described lobe 300 can be arranged near the end of at least one magnet 40 close described of described coil 10, thus, make lobe 300 arrange near the medium position of armature 20.As it is shown on figure 3, lobe 300 may be located between the end of magnet 40 and the end of coil 10 and extends close to armature 20.
In a feasible embodiment, described magnetic support parts 30 can connect the guard member (not shown) suppressing the vibrations of described armature 20.In the present embodiment, guard member can be as the external components of magnetic support parts 30 so that magnetic support parts 30 have the function of suppression armature 20 vibrations.
Wherein, guard member can suppress the flexural shock of armature 20, and then the armature 20 of protection motor 1 is not damaged by after falling.The material of guard member can be selected from least one in polymer, metal and adhesive.Further, described guard member can also possess various shape, such as rectangular shape, cylindrical shape, the semi-cylindrical form with semi-circular section etc..Certainly, guard member can also be block, lamellar body etc..
In the present embodiment, guard member can be attached with magnetic support parts 30 by various ways such as welding, bonding, grafting, and the application is not restricted.Similar to a upper embodiment, guard member arrange position can be arranged on described armature 20 mutually back to both sides at least side.It is also preferred that the left armature 20 mutually back to both sides all can be provided with guard member, and then no matter armature 20 either side generation jerk, all armature 20 can be effectively protected.
In the present embodiment, it is contemplated that do not affect the normal function of armature 20, described guard member can be arranged near the end of at least one magnet 40 close described of described coil 10, thus, make guard member arrange near the medium position of armature 20.
One embodiment of the application also provides for a kind of receptor, including the motor 1 described in as above any embodiment.
Another embodiment of the application also provides for a kind of audio frequency apparatus, including the receptor described in mode performed as described above.Wherein, described audio frequency apparatus can include earphone or sonifer.
Herein cited any digital value all includes lower value and all values of upper value between lower limit to higher limit with an incremented, there is the interval of at least two unit between any lower value and any much higher value.For example, if elaborating that the quantity of parts or the value of process variable (such as temperature, pressure, time etc.) are from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, then list such as 15 to 85,22 to 68,43 to 51,30 to 32 during purpose illustrates that this description the most clearly equivalent.For the value less than 1, suitably think that a unit is 0.0001,0.001,0.01,0.1.These only want the example clearly expressed, it is believed that likely combining of the numerical value enumerated between minimum and peak is expressly set forth in this description the most in a similar manner.
Except as otherwise noted, all scopes all include all numerals between end points and end points." about " or " approximation " being used together with scope is suitable for two end points of this scope.Thus, " about 20 to 30 " are intended to cover " about 20 to about 30 ", are at least included the end points indicated.
The all articles disclosed and reference material, including patent application and publication, pass through to quote to be hereby incorporated by for various purposes.Describe combination term " substantially by ... constitute " should include determined by element, composition, parts or step and other elements, composition, parts or step essentially without the basic novel feature affecting this combination.Use term " to comprise " or describe " including " combination of element here, composition, parts or step it is also contemplated that the embodiment that is substantially made up of these elements, composition, parts or step.Here by use term " can ", it is intended to illustrate that described any attribute that " permissible " includes is all optional.
Multiple elements, composition, parts or step can be provided by single integrated component, composition, parts or step.Alternatively, single integrated component, composition, parts or step can be divided into multiple elements, composition, parts or the step of separation.The open "a" or "an" being used for describing element, composition, parts or step is not said to get rid of other element, composition, parts or step.
It should be understood that above description is to illustrate rather than to limit.By reading foregoing description, the many embodiments outside the example provided and many application the most all will be apparent from.Therefore, the scope of this teaching should not determine with reference to foregoing description, but should determine with reference to the four corner of the equivalent that claims and these claim are had.Include that the disclosure of patent application and bulletin is all passed through with reference to being incorporated herein for comprehensive purpose, all articles and reference.Any aspect omitting theme disclosed herein in aforementioned claim is not intended to abandon this body matter, also should not be considered as inventor and this theme is not thought of as a part for disclosed utility model theme.

Claims (11)

1. the motor for acoustic apparatus, it is characterised in that: include armature, at least one magnet, coil and magnetic support parts;At least one magnet described in described magnetic support member supporting forms gap, and described coil forms passage, and described armature extends through described passage and gap;Described magnetic support parts can suppress the vibrations of described armature when magnetic support parts described in described armature contacts.
2. motor as claimed in claim 1, it is characterised in that: part described magnetic support parts convex to form the lobe suppressing the vibrations of described armature.
3. motor as claimed in claim 2, it is characterised in that: described magnetic support parts include multiple annular lamination;The internal partial wall of at least one described annular lamination extends inwardly to form described lobe.
4. motor as claimed in claim 3, it is characterised in that: described annular lamination has rectangular opening, and described boss is on the limit of described rectangular opening.
5. motor as claimed in claim 2, it is characterised in that: described armature mutually back to both sides at least side be provided with described lobe.
6. motor as claimed in claim 2, it is characterised in that: described lobe is arranged near described overhang, and this end is near at least one magnet described.
7. motor as claimed in claim 1, it is characterised in that: described magnetic support parts connect the guard member suppressing the vibrations of described armature.
8. motor as claimed in claim 7, it is characterised in that: described armature mutually back to both sides at least side be provided with described guard member.
9. a receptor, it is characterised in that include the motor as described in claim 1 to 8 is arbitrary.
10. an audio frequency apparatus, it is characterised in that include receptor as claimed in claim 9.
11. audio frequency apparatuses as claimed in claim 10, it is characterised in that described audio frequency apparatus includes earphone or sonifer.
CN201620244280.5U 2016-03-28 2016-03-28 A motor, receiver for acoustics device and audio equipment thereof Active CN205595924U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10945077B2 (en) 2017-12-30 2021-03-09 Knowles Electronics, Llc Electroacoustic transducer with improved shock protection
US11659337B1 (en) 2021-12-29 2023-05-23 Knowles Electronics, Llc Balanced armature receiver having improved shock performance
US11805370B2 (en) 2020-12-30 2023-10-31 Knowles Electronics, Llc Balanced armature receiver having diaphragm with elastomer surround
US11935695B2 (en) 2021-12-23 2024-03-19 Knowles Electronics, Llc Shock protection implemented in a balanced armature receiver

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10945077B2 (en) 2017-12-30 2021-03-09 Knowles Electronics, Llc Electroacoustic transducer with improved shock protection
US11805370B2 (en) 2020-12-30 2023-10-31 Knowles Electronics, Llc Balanced armature receiver having diaphragm with elastomer surround
US11935695B2 (en) 2021-12-23 2024-03-19 Knowles Electronics, Llc Shock protection implemented in a balanced armature receiver
US11659337B1 (en) 2021-12-29 2023-05-23 Knowles Electronics, Llc Balanced armature receiver having improved shock performance

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GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20180122

Address after: Malaysia Penang

Patentee after: Lou IPC (Malaysia) Pte Ltd

Address before: Illinois

Patentee before: Knowles Electronics LLC

TR01 Transfer of patent right