CN203840177U

CN203840177U - Motor used for acoustic apparatus

Info

Publication number: CN203840177U
Application number: CN201420299986.2U
Authority: CN
Inventors: D·R·基希霍费尔; 托马斯·E·米勒; 亨利·G·纳波姆斯诺; S·阿尔巴赫里
Original assignee: Knowles Electronics LLC
Current assignee: Lou Ipc (malaysia) Pte Ltd
Priority date: 2014-02-28
Filing date: 2014-05-05
Publication date: 2014-09-17
Anticipated expiration: 2024-05-05

Abstract

The utility model relates to a motor used for an acoustic apparatus. The motor comprises an armature, at least one magnet, coils and a magnetic supporting structure. The at least one magnet defines a space. The coils form a channel. The space defined by the at least one magnet and the channel formed by the coils are aligned. A part of the armature extends to pass through the space and the channel. The motor further comprises a bobbin. The coils are formed by surrounding the bobbin. The bobbin also forms the above channel and limits movement of the armature.

Description

Motor for acoustic apparatus

Technical field

The application relates to receiver, and more specifically, relates to the vibrations protection of receiver.

Background technology

Various types of microphones and receiver (transducer) are used for many years.In these devices, different electrical parts are all installed together in shell or assembly.For example, receiver typically comprises coil, bobbin, lamination and other parts, and these parts are all installed in receiver shell.The acoustic apparatus of other type can comprise the parts of other type.Motor typically comprises coil, yoke or lamination and armature, and they have formed magnetic circuits jointly.

Can in the multiple application such as hearing aids, use transducer.Also can in other application such as personal computer or cell phone, use these devices.

As mentioned above, receiver has armature.Armature is a kind of moving component, and it moves along with electric current, thus the magnetic field that causes the variation in receiver.

Receiver bears polytype impulsive force.For example, if adopt receiver in personal computer or cell phone, this device may drop.The generation jerk that drops like this, it may damage or be offset the parts of receiver.

Utility model content

According to first aspect of the present utility model, a kind of motor for acoustic apparatus is provided, this motor comprises armature, at least one magnet, coil and magnetic support structure; Described at least one magnet limits a space; Described coil forms passage; Align with the described passage being formed by described coil in the described space being limited by described at least one magnet; And the part of described armature extends through described space and described passage, wherein: described motor also comprises bobbin, described coil forms around this bobbin, and this bobbin forms described passage, and this bobbin limits the motion of described armature.

According to second aspect of the present utility model, described bobbin is included in the rib that limits the motion of described armature during vibrations.

According to the third aspect of the present utility model, described bobbin is included in the projection that limits the motion of described armature during vibrations.

According to fourth aspect of the present utility model, second width of the part of described bobbin from the first taper in width of the first end of described passage to the second end place of described passage.

According to the 5th aspect of the present utility model, the described part of described bobbin is top and the bottom of described passage.

According to the 6th aspect of the present utility model, the described part of described bobbin is the first sidepiece and second sidepiece of described passage.

According to the 7th aspect of the present utility model, the described part of described bobbin is top and the bottom of described passage, and the first sidepiece of described passage and the second sidepiece.

Accompanying drawing explanation

In order to understand more up hill and dale present disclosure, with reference to following detailed description and accompanying drawing, wherein:

Fig. 1 comprises according to the perspective view of the receiver of the utility model numerous embodiments;

Fig. 2 comprises according to the side of the motor for receiver of the utility model numerous embodiments;

Fig. 3 comprises according to the end-view of the bobbin of Fig. 2 of the utility model numerous embodiments;

Fig. 4 comprises according to the sectional top plan view of the bobbin of Fig. 2 of the utility model numerous embodiments and Fig. 3;

Fig. 5 comprises according to the side sectional view of the bobbin of Fig. 2 to Fig. 4 of the utility model numerous embodiments;

Fig. 6 comprises according to the end-view of the bobbin of the utility model numerous embodiments;

Fig. 7 comprises according to the sectional top plan view of the bobbin of Fig. 6 of the utility model numerous embodiments;

Fig. 8 comprises according to the side sectional view of the bobbin of Fig. 6 of the utility model numerous embodiments and Fig. 7;

Fig. 9 comprises according to the end-view of the bobbin of the utility model numerous embodiments;

Figure 10 comprises according to the sectional top plan view of the bobbin of Fig. 9 of the utility model numerous embodiments;

Figure 11 comprises according to the side sectional view of the bobbin of Fig. 9 of the utility model numerous embodiments and Figure 10.

Those skilled in the art should recognize, for succinct and object and show the element in accompanying drawing clearly.It is to be further appreciated that and can describe or narrate some action and/or step with specific order of occurrence, but one skilled in the art will appreciate that such details about order is in fact also inessential.It is to be further understood that term used herein has these terms in the field separately of inquiring about with respect to their and learning and expresses consistent common implication with expressing, except clearly setting forth herein.

Embodiment

Although the utility model is easy to be subject to the impact of many multi-form execution modes, preferred implementation of the present utility model shown in accompanying drawing will be described in detail in herein, be understandable that, present disclosure is considered to the example of principle of the present utility model, and the execution mode shown in not attempting the broad aspect of the present utility model to be restricted to.

Can in the multiple application such as hearing aids (HI), use the scheme that receiver is provided described herein.Also can in other device such as personal computer and cell phone, adopt receiver described herein.Other example of these devices is also feasible.

Referring now to Fig. 1 to Figure 11,, an example of receiver 10 has been described.Receiver comprises and defines inside and outside housing 14.Receiver 10 further comprises motor 16, and motor 16 comprises coil 18, yoke (or magnetic support structure) 20 and the armature 22 being placed in substantially in housing 14.The electric current of the representative voice being generated flows along coil 18.The electric current mobile armature 22 that flows through coil 18, armature 22 is mobile trundle again, thereby causes barrier film vibration, and produces the sound of expectation.Sound is exported through a port in housing, and then through sound tube 25 outputs.

As mentioned above, motor 16 comprises armature 22, coil 18 and magnetic support structure 20.Motor 16 also comprises at least one magnet 24 that defines space 26.Coil 18 forms passage 28.Align with the passage 28 being formed by coil 18 in the space 26 being limited by least one magnet 24.The part of armature 22 extends through space 26 and passage 28.This motor 16 also comprises bobbin 30, and coil 18 forms around bobbin 30.Bobbin 30 forms passage 28, and bobbin 30 motions of restriction armature 22 in passage 28.

In an example, bobbin 30 comprises the rib of the motion that limits armature 22.In another example and as shown in Fig. 2 to Fig. 8, bobbin 30 comprises the projection 32 of the motion that limits armature 22.

In certain aspects and as shown in Figures 9 to 11, second width of the part of bobbin 30 from the first taper in width of the first end of passage 28 to the second end place of passage 28.The part of the convergent of bobbin 30 can be top 34 and bottom 36.In another example, the part of the convergent of bobbin 30 can be the first sidepiece and the second sidepiece.In another example, the part of the convergent of bobbin 30 is top, bottom and sidepiece.

Described preferred implementation of the present utility model herein, comprised known for inventor for carrying out the optimal mode of this utility model.Should be understood that, shown execution mode is only example, is not limited to scope of the present utility model.

Claims

1. for a motor for acoustic apparatus, this motor comprises armature, at least one magnet, coil and magnetic support structure; Described at least one magnet limits a space; Described coil forms passage; Align with the described passage being formed by described coil in the described space being limited by described at least one magnet; And the part of described armature extends through described space and described passage, it is characterized in that: described motor also comprises bobbin, described coil forms around this bobbin, and this bobbin forms described passage, and this bobbin limits the motion of described armature.

2. the motor for acoustic apparatus as claimed in claim 1, is characterized in that, described bobbin is included in the rib that limits the motion of described armature during vibrations.

3. the motor for acoustic apparatus as claimed in claim 1, is characterized in that, described bobbin is included in the projection that limits the motion of described armature during vibrations.

4. the motor for acoustic apparatus as claimed in claim 1, is characterized in that, second width of the part of described bobbin from the first taper in width of the first end of described passage to the second end place of described passage.

5. the motor for acoustic apparatus as claimed in claim 4, is characterized in that, the described part of described bobbin is top and the bottom of described passage.

6. the motor for acoustic apparatus as claimed in claim 4, is characterized in that, the described part of described bobbin is the first sidepiece and second sidepiece of described passage.

7. the motor for acoustic apparatus as claimed in claim 4, is characterized in that, the described part of described bobbin is the top of described passage and the first sidepiece of bottom and described passage and the second sidepiece.