WO2014166287A1

WO2014166287A1 - Ultra-thin telephone receiver

Info

Publication number: WO2014166287A1
Application number: PCT/CN2013/090815
Authority: WO
Inventors: 李梁; 周巍
Original assignee: 苏州恒听电子有限公司
Priority date: 2012-12-25
Filing date: 2013-12-29
Publication date: 2014-10-16
Also published as: CN103067806B; CN103067806A

Abstract

Disclosed is an ultra-thin telephone receiver. A driving mechanism of the ultra-thin telephone receiver comprises an armature section and a coil section. The armature section is E-shaped and comprises a base portion, two wing portions, and a middle portion, the base portion, the two wing portions, and the middle portion being formed in an integrated mode. The middle portion comprises a root portion located on the base portion, and the root portion extends forward to form a vibration diaphragm portion. The coil section is arranged on the root portion at intervals in a sleeved mode. A shell of the ultra-thin telephone receiver comprises an upper shell and a lower shell. The upper shell is arranged at the top of the driving mechanism in a covered mode, and comprises a cover plate and cover edges that are formed by extending downward from the periphery of the cover plate, a first magnet is fixedly connected to an inner wall of a section of the cover plate covering the top of the vibration diaphragm portion, and the upper shell is made of magnetically soft alloy. The lower shell is arranged at the bottom of the driving mechanism in a covered mode relative to the upper shell, a second magnet is fixedly connected to an inner wall of the lower shell relative to the first magnet, and the lower shell is made of magnetically soft alloy. A sounding hole is formed in the upper shell or the lower shell. In the present invention, the thickness of an existing telephone receiver is reduced to the largest extent, and the ultra-thin telephone receiver is more suitable for the structure of a mobile phone with a narrow frame or a mobile phone which is nearly frameless.

Description

Ultra-thin receiver

The present invention relates to a receiver, and more particularly to an ultrathin receiver. Background technique

The receiver, also known as the earpiece, is an electroacoustic device that converts audio electrical signals into sound signals without sound leakage. It is widely used in communication terminals such as mobile phones, fixed telephones, and earphones to realize audio, such as voice and music. The output of etc.

With the rapid development of mobile phone technology, higher technical requirements have been put forward for the receivers used in mobile phones. In the 21st century, especially in recent years, mobile phones have entered the era of smartphones. All the manipulation of the smartphone is done through the screen, and the touch operation has replaced the operation of the traditional physical button. Therefore, the corresponding requirements on the screen are getting higher and higher.

In order to enable users to get the best control experience, mobile phone manufacturers have begun to make the screen bigger and bigger, and the largest screen has exceeded 5 inches. However, while the screen is enlarged, the size of the mobile phone cannot be made too large, because the user cannot hold and operate and talk with one hand, which brings a lot of inconvenience to the user. As a result, major mobile phone manufacturers have begun to develop and produce mobile phones in the direction of narrow borders or close to "infinite frames."

In this way, a higher requirement is placed on the volume of the receiver originally disposed between the frame and the screen, and the existing receiver is mainly composed of a driving mechanism, a casing, and the like, and the driving mechanism includes an armature, an iron core, and the like. a coil, an upper and lower magnet, a diaphragm, a diaphragm holder, etc., wherein the coil and the iron core are arranged on the armature to form a layer, and the upper and lower magnets are mounted in the iron core, and the layer is composed of a diaphragm and a diaphragm bracket. One layer is superimposed to form the drive mechanism, and then the outer casing is mounted on the outside of the drive mechanism. The thickness of such a structure is obviously not installed in such a narrow bezel or in a "borderless" mobile phone.

Therefore, in order to adapt to the development of a new generation of mobile phones, there is a need for a maximum thickness. A thinned receiver. Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to provide an ultrathin receiver having a maximum thickness reduction in view of the above problems.

In order to achieve the above object, the present invention provides the following technical solution: an ultra-thin receiver including a housing, a driving mechanism, and a circuit board, the driving mechanism comprising: an armature portion having an E shape, the armature portion including an integrally formed a base portion, two side flap portions and an intermediate portion, the intermediate portion including a portion on the base portion, the portion extending forward to form a diaphragm portion; the coil portion being sleeved on the root portion; the housing portion comprising: The upper casing is disposed on the top of the driving mechanism, and the upper casing comprises a cover plate and a cover edge extending downwardly around the cover plate, and the upper wall of the cover plate covering the top of the diaphragm portion is fixedly connected a first magnet is formed of a soft magnetic alloy; a lower casing is disposed on a bottom of the driving mechanism with respect to the upper casing, and an inner wall of the lower casing is fixed relative to the first magnet A second magnet is connected, and the lower casing is made of a soft magnetic alloy; and a sound hole is further formed on the upper casing or the lower casing.

Further, both end portions of the coil portion described above are fixedly connected to the two side wing portions, respectively.

Further, the upper casing is fixedly coupled to the base and the side wing portions, and the base portion and the side wing portions are fixedly coupled to the lower casing.

Optionally, the upper casing is fixedly connected to the lower casing, and the inner side of the lower casing is provided with a step, and the base and the wing portions are fixedly connected to the step.

Further, the upper casing includes: a first upper casing that is disposed on a top portion of the diaphragm portion and a portion of the side wing portions on both sides of the diaphragm portion, wherein the first magnet is fixedly coupled to the first upper casing a second upper casing, the second upper casing is disposed on the coil portion, the two side wing portions are located on both sides of the coil portion, and a top portion of the base portion is butted against the first upper casing, and the second upper casing may also be iron or Made of copper.

Further, the upper casing further includes a third upper casing disposed between the first upper casing and the second upper casing and respectively abutting the first upper casing and the second upper casing, wherein the third upper casing further It can be made of aluminum or copper.

Further, the ultrathin receiver further includes a diaphragm, one end of the diaphragm is attached to the third upper casing at a position abutting the first upper casing, and the other end is laid forward on the diaphragm portion. And the two side wings are located on both sides of the diaphragm portion.

Further, at least two grooves are formed on both sides of the position between the root portion and the diaphragm portion, and the grooves are oppositely disposed.

Still further, the armature portion described above is a flat plate type.

Still further, the above soft magnetic alloy is A3 steel, permalloy or soft iron. The beneficial effects of adopting the above technical solutions are as follows:

1. The present invention improves the thickness reduction of the structure of the original receiver, specifically including an armature that also serves as a diaphragm and an upper and lower casing that also serves as a core; the armature Provided as an E-shape, comprising an integrally formed base, two side flaps, and an intermediate portion, the intermediate portion including a root portion on the base portion, the root portion extending forward to form a diaphragm portion, and the diaphragm portion is substituted for the original portion The diaphragm is separately provided, and the coil is sleeved on the root portion, so that the diaphragm and the diaphragm frame which are originally disposed on the driving mechanism are eliminated, so that the thickness is reduced; the upper and lower casings are soft The upper casing comprises a cover plate and a cover edge extending downwardly around the cover plate, and a first magnet is fixedly connected to an inner wall of a cover plate covering the top of the diaphragm portion, and the lower casing is oppositely The upper casing is covered on the bottom of the driving mechanism, and the second magnet is fixedly connected to the inner wall of the lower casing, so that the original combination of the iron core and the magnet is replaced by the outer casing. This sample so that the thickness is further reduced;

2. In a further aspect of the present invention, the upper casing is divided into two parts, that is, a first upper casing and a second upper casing that are butt-joined, the first upper casing is disposed above the diaphragm portion, and the first magnet is fixedly connected. On the inner wall of the first upper case; the second upper case is disposed above the coil portion; thus, the space of the front cavity on the diaphragm can be reduced, and the high frequency effect can be further enhanced;

In a further aspect of the present invention, the upper casing further includes a third upper casing disposed between the first upper casing and the second upper casing and respectively abutting the first upper casing and the second upper casing, the diaphragm One end of the third upper shell is attached to the first upper shell, and the other end is The front portion is placed on the diaphragm portion and the wings on both sides are located on both sides of the diaphragm portion, so that the front chamber can be effectively sealed;

4. In a further aspect of the present invention, at least two grooves are formed on both sides of the position between the root portion and the diaphragm portion, and the grooves are oppositely disposed, and the arrangement of the grooves can further reduce the hardness of the diaphragm portion. Increase the vibration range;

5. In a further aspect of the invention, the armature portion is of the flat plate type, which further reduces the overall thickness. DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view showing the side view angle of the ultrathin receiver of the present invention in the first embodiment;

Figure 2 is a cross-sectional structural view showing the ultra-thin receiver of the present invention in a plan view angle in the first embodiment;

Figure 3 is a schematic view showing the structure of the coil portion and the armature portion of the ultrathin receiver of the present invention in a state in which it is assembled in the first embodiment;

Figure 4 is a schematic view showing the structure of the upper casing and the first magnet of the ultrathin receiver of the present invention in an assembled state in the first embodiment;

Figure 5 is a schematic view showing the structure of the upper casing of the ultrathin receiver of the present invention in a side view angle in the first embodiment;

Fig. 6 is a view showing the structure of the lower case and the second magnet of the ultrathin receiver of the present invention in an assembled state in the first embodiment.

1. The housing 11. The upper housing 111. The first upper housing 112. The second upper housing 113. The third upper housing 114. The sounding hole 12. The lower housing 21. The first magnet 22. The second magnet 31. Armature portion 311. Base portion 312. First side wing portion 313. Second side wing portion 314. Talent portion 315. Diaphragm portion 316. Groove 4. Coil portion 51. Circuit board 52. Solder station. detailed description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1 As shown in FIG. 1-6, the ultra-thin receiver in this embodiment includes a housing 1, a driving mechanism, and a circuit board 51. The driving mechanism includes: an armature portion 31 having an E shape, and the armature portion 31 includes an integral body. a molded base portion 311, two side flap portions, and an intermediate portion, the two side wing portions being a first side wing portion 312 and a second side wing portion 313, the intermediate portion including a dermis portion 314 on the base portion 311, the root portion 314 extending forward The diaphragm portion 315 is formed; the coil portion 4 is sleeved on the root portion 314 and is not in contact with the root portion 314. The coil portion 4 has two starting lines and a terminating line respectively and the positive and negative electrodes of the circuit board 51. Electrical connection, that is, connected to the soldering station 52, the armature portion 31 can be made of a soft magnetic alloy; the housing 1 includes: an upper housing 11 covering the top of the driving mechanism, the upper housing 11 including a cover plate And a cover edge extending downwardly around the cover plate, a first magnet 21 is fixedly connected to the inner wall of the cover plate covering the top of the diaphragm portion 315, and the fixed connection manner can be a paste connection, the upper casing 11 is made of soft magnetic alloy, which uses In the prior art, the iron core is similar to the material; the lower casing 12 is disposed on the bottom of the driving mechanism with respect to the upper casing 11, and the second magnet 22 is fixedly connected to the inner wall of the lower casing 12 with respect to the first magnet 21. The fixed connection manner may be a paste connection, and the lower case 12 is also made of a soft magnetic alloy, which adopts a material similar to the prior art iron core, and is used together with the upper case 11 to replace the iron core. The upper housing 11 further defines a sound hole 114. In the embodiment, the sound hole 114 is a notch formed on the side of the upper casing 11, and of course, a through slot may be formed or may be opened. Other locations of the housing 11 or the lower housing 12.

As shown in FIG. 2-3, the two end portions of the coil portion 5 are fixedly connected to the first side wing portion 312 and the second side wing portion 313, respectively, and the fixed connection manner may be welded, on both sides of the coil portion 5. The ends are connected to the first side wing portion 312 and the second side wing portion 313 by a single weld spot.

As shown in FIG. 1-2, the upper casing 11 is fixedly connected to the base portion 311, the first side wing portion 312 and the second side wing portion 313. The fixed connection manner may be welded, and a plurality of welding may be disposed at the above position. The other side of the base portion 311, the first side wing portion 312 and the second side wing portion 313 is fixedly connected to the lower casing 12, and the fixed connection manner may also be welded, or multiple positions may be arranged at the above position. Solder joints to connect. As shown in FIG. 2 and FIG. 4, the upper casing 11 includes a first upper casing 111 that is disposed on the diaphragm portion 315 and the first side wing portion 312 and the second side wing portion 313 are located on both sides of the diaphragm portion 315. The top portion of the portion, the first magnet 21 is fixedly coupled to the inner wall of the first upper casing 111, so that the first upper casing 111 can be specifically used as an upper half instead of the iron core, and the lower casing 12 constitutes a replacement core. The second upper casing 112 is disposed on the coil portion 4, the first side wing portion 312 and the second side wing portion 313 on both sides of the coil portion 4 and the top portion of the base portion 311, and is in interface with the first upper casing 111, specifically The two upper shells 112 are made of iron or copper in addition to the soft magnetic alloy mentioned above, and may be used as a part instead of the iron core, and only serve as a butt joint. A shielded enclosure.

As shown in FIG. 2 and FIG. 4, the upper casing 11 further includes a third upper casing 113 disposed between the first upper casing 111 and the second upper casing 112 and respectively associated with the first upper casing 111 and the first casing 111. The two upper shells 112 are butted, specifically, the front and rear sides thereof are arranged as abutting faces, and the butting faces are butted against the first upper shell 111 and the second upper shell 112, and the third upper shell 113 is in addition to the soft magnetic alloy described above. It can also be made of iron or copper, which may not be used as a part of the core but as a shielded casing.

The above-mentioned ultrathin receiver further includes a diaphragm (not shown), one end of which is attached to the third upper casing 113 at a position abutting the first upper casing 111, and the other end is laid forward. The diaphragm portion 315 and the first side wing portion 312 and the second side wing portion 313 are located on both sides of the diaphragm portion 315, and the air chamber is airtight. The diaphragm can be made of some known plastic film. Implementation.

As shown in FIG. 3, two grooves 316 are formed on both sides of the position between the 314 and the diaphragm portion 315, and the grooves 316 are oppositely disposed, so that the hardness of the diaphragm portion 315 can be further reduced. Therefore, the vibration range is enlarged, and the number of the grooves 316 can be set to more than two according to the process requirements.

As shown in Fig. 1, the above-described armature portion 31 is of a flat plate type, which can further reduce the overall thickness.

The above soft magnetic alloy may be selected from A3 steel, permalloy or soft iron.

After the above components are assembled, the gaps left between the components should be This uses a gas tight process for sealing.

The lower casing 12 described above can also be assembled in a multi-segment housing with different or the same materials, in accordance with the structure of the upper casing 11.

In the present embodiment, the upper case 11 and the lower case 12 are both formed in a rectangular shape. Of course, they can be formed into a circular shape, a polygonal shape or the like according to different process requirements.

Example 2

Others are the same as those described in Embodiment 1, except that: the upper housing 11 and the lower housing 12 are fixedly connected, and the inner side of the lower housing 12 is provided with a step, a base 311 and a first side wing. The portion 312 and the second side wing portion 313 are fixedly connected to the step. The fixed connection manner may be a welding method, and a plurality of solder joints may be disposed at the above position for connection.

The working principle of the present invention is described below:

The original diaphragm and armature portions are merged into the current armature portion 31, and the intermediate portion 314 of the armature portion 31 is used for the gap winding coil 4, and the portion extending forward of the portion 314 is substituted for the existing portion. The diaphragm portion 315 of the diaphragm first compresses the space occupied by the original diaphragm; the original housing and the core for mounting the magnet are merged into the current housing 1, and the housing 1 is divided into upper and lower housings. 11 and the lower casing 12, the first magnet 21 and the second magnet 22 are oppositely mounted on the inner walls of the upper casing 11 and the lower casing 12, respectively, such that the space occupied by the original core is compressed. When starting the operation, the circuit board 31 inputs an electric signal to the coil 4, and generates an electromagnetic induction effect through the coil 4, thereby generating an alternating magnetic field, and the alternating magnetic field magnetizes the armature portion 31 placed in the coil 4, and the armature portion 31 The first magnet 21 and the second magnet 22 generate a push-pull force according to the principle of "the same polarity repulsive and the opposite pole attracting", thereby driving the diaphragm portion 315 to vibrate, thereby generating sound output from the sounding hole 316.

The beneficial effects of adopting the above technical solutions are as follows:

1. The present invention improves the thickness reduction of the structure of the original receiver, specifically including an armature that also serves as a diaphragm and an upper and lower casing that also serves as a core; the armature Provided as an E-shape, comprising an integrally formed base, two side flaps, and an intermediate portion, the intermediate portion including a root portion on the base portion, the root portion extending forward to form a diaphragm portion, and the diaphragm portion is substituted for the original portion a separate diaphragm, the coil is placed at the root In this way, the portion of the diaphragm and the diaphragm frame which is originally disposed in superimposed with the driving mechanism is eliminated, so that the thickness is reduced; the upper and lower casings are made of soft magnetic alloy, and the upper casing includes a cover plate and along a cover edge extending downwardly around the cover plate is fixedly connected with a first magnet on an inner wall of a section of the cover plate covering the top of the diaphragm portion, and the lower case is disposed at a bottom of the drive mechanism with respect to the upper case. A second magnet is fixedly connected to the inner wall of the lower casing relative to the first magnet, so that the original combination of the iron core and the magnet is replaced by the outer casing, so that the thickness is further reduced;

2. In a further aspect of the present invention, the upper casing is divided into two parts, that is, a first upper casing and a second upper casing that are butt-joined, the first upper casing is disposed above the diaphragm portion, and the first magnet is fixedly connected. On the inner wall of the first upper case; the second upper case is disposed above the coil portion, except that it can be made of a soft magnetic alloy; thus, the space of the front cavity on the diaphragm can be reduced, and further Enhance the effect of high frequency;

In a further aspect of the present invention, the upper casing further includes a third upper casing disposed between the first upper casing and the second upper casing and respectively abutting the first upper casing and the second upper casing, the diaphragm One end is attached to the third upper shell at a position abutting the first upper shell, and the other end is laid forward on the diaphragm portion and the side flap portions are located on both sides of the diaphragm portion, so that the front cavity can be Perform an effective seal;

5. In a further aspect of the invention, the armature portion is of the flat plate type, which further reduces the overall thickness.

The above is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept. The scope of protection of the invention.

Claims

An ultra-thin receiver comprising a housing, a driving mechanism and a circuit board, wherein: the driving mechanism comprises: an armature portion having an E shape, the armature portion comprising an integrally formed base portion and two side wings And a middle portion, the middle portion includes a root portion on the base portion, the root portion extends forward to form a diaphragm portion; the coil portion is sleeved on the root portion; the housing comprises: an upper shell The upper casing includes a cover plate and a cover edge extending downwardly around the cover plate, covering the inner wall of a section of the cover plate at the top of the diaphragm portion a first magnet is fixedly connected, the upper casing is made of a soft magnetic alloy, and a lower casing is disposed at a bottom of the driving mechanism with respect to the upper casing, and the inner wall of the lower casing is oppositely a second magnet is fixedly connected to the first magnet, and the lower casing is made of a soft magnetic alloy;

A sound hole is also formed in the upper casing or the lower casing.

The ultrathin receiver according to claim 1, wherein both end portions of the coil portion are fixedly coupled to the two side wing portions.

The ultrathin receiver according to claim 1, wherein the upper casing is fixedly coupled to the base and the side wing portions, and the base portion and the side wing portions are in fixed connection with the lower casing.

The ultrathin receiver according to claim 1, wherein: the upper casing is fixedly connected to the lower casing, and a step is arranged on an inner side of the lower casing, the base and the side wing portion. Fixedly attached to the step.

The ultrathin receiver according to claim 1, 3 or 4, wherein: the upper casing comprises: a first upper casing, the diaphragm is disposed on the diaphragm portion, and the two wing portions are located at a top portion of a portion on both sides of the diaphragm portion, the first magnet is fixedly coupled to an inner wall of the first upper case; a second upper case is disposed on the coil portion, and the two side wings are located at the coil The portions on both sides and the top of the base are butted against the first upper casing, and the second upper casing may also be made of iron or copper.

The ultrathin receiver according to claim 5, wherein: the upper casing further includes a third upper casing disposed between the first upper casing and the second upper casing and respectively associated with The first upper case and the second upper case are butted, and the third upper case may also be made of aluminum or copper.

The ultra-thin receiver according to claim 6, wherein: the ultra-thin receiver further comprises a diaphragm, one end of the diaphragm is attached to the third upper shell and the first In a position where the upper casing is butted, the other end thereof is laid forward on the diaphragm portion and the both side wings are located on both sides of the diaphragm portion.

The ultra-thin receiver according to claim 1, wherein at least two grooves are formed at two sides of the position between the root portion and the diaphragm portion, and the grooves are oppositely disposed.

The ultrathin receiver according to claim 1, wherein the armature portion is a flat plate type.

The ultrathin receiver according to claim 1, wherein the soft magnetic alloy is A3 steel, permalloy or soft iron.