CN201369820Y

CN201369820Y - Electromagnetic telephone receiver

Info

Publication number: CN201369820Y
Application number: CNU200920130180XU
Authority: CN
Inventors: 张金宇
Original assignee: AAC Acoustic Technologies Shenzhen Co Ltd; AAC Acoustic Technologies Changzhou Co Ltd
Current assignee: AAC Technologies Holdings Changzhou Co Ltd; AAC Technologies Pte Ltd
Priority date: 2009-02-13
Filing date: 2009-02-13
Publication date: 2009-12-23
Anticipated expiration: 2019-02-13

Abstract

The utility model provides an electromagnetic telephone receiver which comprises a vibration phonating unit, a driving unit, a shell and a phonating device. The driving unit leads the vibration phonating unit to vibrate and phonate, the shell contains the above elements, and the phonating device is connected with the shell. The vibration phonating unit comprises a vibration diaphragm and a bracket which is used for supporting the vibration diaphragm, the driving unit comprises a coil and a welding sheet, the welding sheet which is embedded in the bracket comprises a welding part and a connecting part, the welding part is used for electrically connecting with the coil, the connecting part is used for electrically connecting with an external circuit, and the connecting part is extended to the outer part of a shell body. The electromagnetic telephone receiver which adopts the above structure has stable performance.

Description

Electromagnetic receiver

Technical field

The present invention relates to a kind of electromagnetic receiver.

Background technology

Electromagnetic receiver is widely used in portable electronic equipments such as mobile phone, notebook computer, hearing aids.Along with fast development, the people of these portable electronic equipments are more and more stronger to its functional requirement, the also corresponding development apace of the mini-sound device that is applied thereon.

The electromagnetic receiver of dependency structure generally is a panel beating support independently, is fixed on the housing and carries vibrating diaphragm; Drive coil lead-in wire is warded off on two thicker enamelled wires, and enamelled wire passes the wire hole of housing and printed board, in the spot welding printed board externally, and adds tin and fixes.The deficiency of this structure is: ward off line, spot weld operation is loaded down with trivial details, big rosin joint hidden danger is arranged; Lead-out wire must pass the hole of housing, printed board, complicated operation, lowers efficiency, and easily causes broken string or the damaged short circuit of enamelled wire; Printed board combines relatively poor with housing, be prone to the problem that printed board comes off and breaks in the use; Housing must bear big pressure when being welded in the lead-out wire point in the printed board, easily causes housing and lid distortion; Be not easy to carry out the energising test between production procedure, and easily cause broken string during test, cause entire product to scrap.

Therefore, be necessary to study a kind of novel electromagnetic receiver.

Summary of the invention

The technical problem that the utility model need solve provides a kind of electromagnetic receiver of stable performance.

According to the above-mentioned technical problem that needs solution, designed a kind of electromagnetic receiver, the involving vibrations phonation unit, make the driver element of described vibration sounding unit vibration sounding and the shell of accommodating said elements, what link to each other with shell goes out acoustic device, described vibration sounding unit comprises vibrating diaphragm, be used to support the support of vibrating diaphragm, described driver element comprises coil, weld tabs, it is characterized in that: described weld tabs is embedded in the support, weld tabs comprises the connecting portion that is used for the weld part that is electrically connected with described coil and is used for being electrically connected with external circuit, and this connecting portion extends to described outside.

Preferably, described vibration sounding unit comprises the vibration plate that is arranged on the vibrating diaphragm; Driver element comprises connecting rod, coil, pole shoe, armature, first magnet steel and second magnet steel that links to each other with the vibration sounding unit, wherein, described armature is the E word shape, involving vibrations portion and the magnetic conduction support portion that links to each other with the vibration section, coil and pole shoe pass the vibration section of armature and coil and pole shoe successively and do not contact with the vibration section of armature, and first magnet steel is separately positioned on pole shoe two inner surfaces relative with the vibration section of armature with second magnet steel.

The beneficial effects of the utility model are: because weld tabs is embedded in support, the coil lead direct spot welding is on weld tabs, weld tabs stretches out that housing is outer to be communicated with printed board, so only need be welded in lead-in wire point on the weld tabs, being connected when adding tin of weld tabs and printed board one goes on foot and finish; . weld tabs is subjected to support protection, directly stretches out housing, non-cracking or damaged hidden danger; Reinforce by scolding tin, strengthened the fastness of printed board; Directly weld tabs is supported during spot welding, improve soldering reliability greatly, and avoided influence other parts.So the electromagnetic receiver stable performance that the utility model provides can directly be communicated with simultaneously test and the adjustment of weld tabs in producing.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the electromagnetic receiver that provides of the utility model;

Fig. 2 is the stereogram of the electromagnetic receiver that provides of the utility model.

Embodiment

The utility model is described in further detail below in conjunction with drawings and embodiments.

As depicted in figs. 1 and 2, the electromagnetic receiver 1 that the utility model provides, involving vibrations phonation unit 11, the shell (indicate) that makes the driver element 12 of described vibration sounding unit 11 vibration soundings and accommodate said elements, what link to each other with shell goes out acoustic device 13.

Vibration sounding unit 11 comprises vibrating diaphragm 112, is used to support the support 111 of vibrating diaphragm 112, is arranged on the vibration plate 113 on the vibrating diaphragm, and this vibration plate 113 plays a part to support and 112 distortion of anti-vibrating diaphragm; Driver element comprises coil 124, weld tabs 127, weld tabs 127 is embedded in the support 111, weld tabs 127 comprises the connecting portion 1271 that is used for the weld part 1272 that is electrically connected with coil 124 and is used for being electrically connected with external circuit (not indicating), and this connecting portion 1271 extends to outside.

Weld tabs 127 and being electrically connected of coil 124 are that the coil lead (indicating) by coil 124 is welded on the weld part 1272 of weld tabs 127 and realizes; The connecting portion 1271 and the external circuit of weld tabs 127 connect as printed panel.Loam cake 14 and lower cover 15 have formed receiving space, are used to accommodate said elements, and loam cake 14 and lower cover 15 have constituted shell.

General weld tabs 127 has two, and will insulate between two weld tabs.If support 111 adopts the metal plate material, then need between two weld tabs, be coated with insulating layer coating or take other insulation measures; Certainly, also can select the support of injection moulding for use, insulation between such two weld tabs.

Owing to adopted this structure, be that weld tabs 127 is embedded in support 111, and the connecting portion 1272 of weld tabs 127 extends to housing exterior, so coil lead (not indicating) direct spot welding is on weld tabs 127, weld tabs 127 stretches out outside the housing and is communicated with printed board (indicating), so only need the coil lead point is welded on the weld tabs 127, one step that was connected when adding tin of weld tabs 127 and printed board finishes; Weld tabs 127 is subjected to support 111 protections, directly stretches out housing, non-cracking or damaged hidden danger; Reinforce by scolding tin, strengthened the fastness of printed board; Directly weld tabs 127 is supported during spot welding, improve soldering reliability greatly, and avoided influence other parts.So electromagnetic receiver 1 stable performance that the utility model provides can directly be communicated with simultaneously test and the adjustment of weld tabs in producing.

In the preferred embodiment that the utility model provides, driver element 12 comprises the connecting rod 126 that links to each other with vibration sounding unit 11, coil 124, pole shoe 125, armature 123, first magnet steel and 121 second magnet steel 122, wherein, armature 123 is the E word shape, involving vibrations portion 1231 and the magnetic conduction support portion 1232 that links to each other with vibration section 1231, coil 124 and pole shoe 125 pass the vibration section 1231 of armature 123 and coil 124 and pole shoe 125 successively and do not contact with the vibration section 1231 of armature 123, first magnet steel 121 and second magnet steel 122 are separately positioned on two relative inner surfaces of the vibration section 1231 of pole shoe 125 and armature 123, i.e. first inner surface 1241 and second inner surface 1242.

When the electromagnetic receiver 1 that the utility model provides feeds the AC audio signal at coil, coil produces magnetic field and carries out superposition with the permanent magnetic field of magnet steel and produces alternating magnetic field, pole shoe 125 plays the magnetic conduction effect, the vibration section 1231 of armature 123 is in the alternating magnetic field internal vibration, and, sound thereby promote air by connecting rod 126 drive vibration sounding unit 11 vibrations.

Above-described only is a kind of execution mode of the present utility model; should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite that does not break away from the utility model creation design; can also make improvement, but these all belong to protection range of the present utility model.

Claims

1, a kind of electromagnetic receiver, involving vibrations phonation unit, the driver element that makes described vibration sounding unit vibration sounding and the shell of accommodating said elements, what link to each other with shell goes out acoustic device, described vibration sounding unit comprises vibrating diaphragm, is used to support the support of vibrating diaphragm, described driver element comprises coil, weld tabs, it is characterized in that: described weld tabs is embedded in the support, weld tabs comprises the connecting portion that is used for the weld part that is electrically connected with described coil and is used for being electrically connected with external circuit, and this connecting portion extends to described outside.

2, electromagnetic receiver according to claim 1 is characterized in that: described vibration sounding unit comprises the vibration plate that is arranged on the vibrating diaphragm; Driver element comprises connecting rod, coil, pole shoe, armature, first magnet steel and second magnet steel that links to each other with the vibration sounding unit, wherein, described armature is the E word shape, involving vibrations portion and the magnetic conduction support portion that links to each other with the vibration section, coil and pole shoe pass the vibration section of armature and coil and pole shoe successively and do not contact with the vibration section of armature, and first magnet steel is separately positioned on pole shoe two inner surfaces relative with the vibration section of armature with second magnet steel.