CN203933940U - Speaker unit - Google Patents

Abstract

The utility model provides speaker unit, comprise resinous box shell, micro loudspeaker unit and substrate, the second housing that shell comprises the first shell and is combined with the first shell, and be provided with through hole, micro loudspeaker unit is contained in box shell, have sound before, with the rightabout back side above, at the inner face of second housing so that the form that the second pad exposes from through hole arranges substrate, substrate has the first surface being oppositely arranged with the back side, with first surface rightabout second, the first pad forming on first surface, and the second pad being electrically connected with the first pad forming on second, described speaker unit is characterised in that, also be provided with lead-in wire, lead-in wire is by wire, the stripping portion of exposing wire after covering the insulator of wire and removing insulator forms, stripping portion is connected with the second pad, the back side is provided with the flexible terminal that is crimped on the first pad, be crimped on thus the inner face of the first shell above.

Description

Speaker unit

Technical field

The utility model relates to loudspeaker unit and is contained in the speaker unit in shell.

Background technology

Along with representing the performance of the various electronic equipments such as mobile communication equipment, notebook computer and the raising of function of mobile phone, in order to improve portable performance, to its miniaturization, light-weighted market demands are more and more higher.Further, for the acoustic characteristic of the stable loud speaker that is provided in these equipment, use micro loudspeaker unit is contained in by the speaker unit in the shell of resin manufacture.

Speaker unit comprises micro loudspeaker unit, box shell and lead-in wire.Micro loudspeaker unit is arranged on the peristome of box shell, is contained in shell.Shell is that the bonding a pair of upper and lower casing with the portion of stinging mutually forms.The method of bonding upper and lower casing, for example, used adhesive.

The micro loudspeaker unit that existing speaker unit uses comprises the magnetic circuit system, vibrating diaphragm, basin frame and the terminal that form magnetic gap.Magnetic circuit system arranges magnet steel, metal guide magnetic sheet in peviform yoke.On vibrating diaphragm, fix voice coil loudspeaker voice coil.Basin frame is supported magnetic circuit system and vibrating diaphragm.Terminal is electrically connected with voice coil loudspeaker voice coil.Lead-in wire is made up of the insulator of wire and covering wire.Structure is supplied to the voice signal of lead-in wire thus, is input to the voice coil loudspeaker voice coil that is arranged on magnetic gap by terminal.By above structure, the vibrating diaphragm of vibration micro loudspeaker unit, sounds.

The prior art document that the utility model is relevant has Chinese patent: utility model discloses No. 202424972.

The shell of existing speaker unit is that in upper and lower casing, stinging mutually in portion of any one party smeared adhesive, and stinging mutually between portion of upper and lower casing formed in the mode of stinging mutually.Therefore, in the assembling process of speaker unit, must through the operation of smearing curing adhesive, so, deteriorated productive problem produced.

Utility model content

The purpose of this utility model is to solve above-mentioned technical problem, provide a kind of in conjunction with after the first shell and second housing, can connecting lead wire and the second pad, thus, the heat producing during in conjunction with the first shell and second housing can not melt the insulator of described lead-in wire, thereby avoid producing on insulator the phenomenon that aperture, wire expose from insulator, prevent contact between wire and the speaker unit that is short-circuited.

In order to solve the problems of the technologies described above, speaker unit provided by the utility model, comprise resinous box shell, micro loudspeaker unit and substrate, the second housing that described box shell comprises the first shell and is combined with described the first shell, and be provided with through hole, described micro loudspeaker unit is contained in described box shell, have sound before, with the described rightabout back side above, described substrate has the first surface being oppositely arranged with the described back side, with described first surface rightabout second, the first pad forming on described first surface, and the second pad being electrically connected with described the first pad forming on described second, at the inner face of described second housing so that the form that described the second pad exposes from described through hole arranges described substrate, described speaker unit is characterised in that, also be provided with lead-in wire, described lead-in wire is by wire, the stripping portion of exposing described wire after covering the insulator of described wire and removing described insulator forms, described stripping portion is connected with described the second pad, the described back side is provided with the flexible terminal that is crimped on described the first pad, the described inner face that is crimped on described the first shell above thus.

Speaker unit provided by the utility model can be configured to, and between the inner face of described second and described second housing, has sealing.

Speaker unit provided by the utility model can be configured to, and described sealing is made up of adhesive.

Speaker unit provided by the utility model can be configured to, and described micro loudspeaker unit is in multiple micro loudspeaker units.

Speaker unit provided by the utility model can be configured to, and described the first pad is in multiple the first pads, and forms conductive pattern in described substrate, and described multiple the first pads are electrically connected by described conductive pattern.

brief description of the drawings

Fig. 1 represents the sectional view of speaker unit of the present utility model.

Fig. 2 represents the exploded perspective view of speaker unit of the present utility model.

Fig. 3 represents the exploded perspective view of speaker unit of the present utility model.

Symbol description

11 speaker units

12 shells

12A the first shell

12B second housing

12C louver

12D through hole

12E weld portion

13 micro loudspeaker units

13A flexible terminal

14 lead-in wires

14A wire

14B insulator

14C stripping portion

15 connecting portions

16 substrates

16A the first pad

16B the second pad

16C conductive pattern

17 sealings

Before 18

19 back sides

21 speaker units

Embodiment

The embodiment of speaker unit of the present utility model is described with reference to accompanying drawing below.

Fig. 1 represents the sectional view of the utility model speaker unit.

As shown in Figure 1, speaker unit 11 comprises resinous box shell 12, micro loudspeaker unit 13 and substrate 16.Speaker unit also has lead-in wire 14.

Micro loudspeaker unit 13 is contained in box shell 12.Micro loudspeaker unit 13 have sound above 18, with the described rightabout back side 19 above.The back side 19 is provided with flexible terminal 13A.

Shell 12 comprises the first shell 12A and second housing 12B.The first shell is provided with sender.The first shell 12A is arranged at one side of 18 above of micro loudspeaker unit 13.Second housing 12B is arranged at the one side at the back side 19 of micro loudspeaker unit 13.The upper through hole 12D that forms of second housing 12B.

Shell 12 also comprises weld portion 12E.The first shell 12A and second housing 12B are by weld portion 12E combination.For example, the first shell 12A and second housing 12B realize combination by ultrasonic fusing.Or the first shell 12A and second housing 12B also can realize combination by thermal welding.

Described substrate 16 is arranged on the inner face of described second housing 12B and the back side 19 with respect to micro loudspeaker unit 13.Substrate 16 have first surface, with rightabout second of first surface.Substrate 16 also has the first pad 16A forming on first surface, the second pad 16B forming on second.The first pad 16A is electrically connected with the second pad 16B.And, the second pad 16B is exposed from through hole 12D.Flexible terminal 13A is crimped on the first pad.Thus, 18 inner faces that are crimped on the first shell 12A before.

The speaker unit 11 of said structure, by the elastic force of flexible terminal 13A, make micro loudspeaker unit 13 above 18 with the inner face laminating of the first shell 12A, and make second of substrate 16 to fit with the inner face of second housing 12B, can prevent the omission of sound.

During in conjunction with the first shell 12A and second housing 12B, under the state of use welding fixture intersection shell, form weld portion 12E.,, by the elastic force of flexible terminal 13A, make, under 18 states of fitting with the inner face of the first shell 12A above of micro loudspeaker unit 13, also can carry out the combination of the first shell 12A and second housing 12B.Therefore, the first shell 12A of the utility model speaker unit 11 and the binding operation of second housing 12B are simple, enhance productivity.

Lead-in wire 14 comprises wire 14A, insulator 14B and stripping portion 14C.Insulator 14B is formed by thermoplastic resin, and coated wire 14A around.Stripping portion 14C be remove lead-in wire 14 insulator 14B after, expose the part of wire 14A.

Stripping portion 14C is connected with the second pad 16B.Between stripping portion 14C and the second pad 16B, be connected by connecting portion 15.Preferably connecting portion 15 use welding realize connection.Under lead-in wire 14 states that are connected with the second pad 16B, lead-in wire 14 is drawn out to the outside of shell 12 by through hole 12D.The speaker unit 11 of structure thus, because the second pad 16B exposes from through hole 12D, so, after the first shell 12A and second housing 12B, can connecting lead wire 14 and the second pad 16B.Thus, the heat producing during in conjunction with the first shell 12A and second housing 12B can not melt the insulator 14B of described lead-in wire 14.As a result, avoid that insulator 14B is upper produces the phenomenon that aperture, wire 14A expose from insulator 14B, prevent contact between wire 14A and be short-circuited.

In speaker unit 11, preferably between the inner face of second and second housing 12B, there is sealing 17.For example, sealing 17 is made up of adhesive.The speaker unit 11 of this spline structure, in vibration processes, prevents that between substrate 16 and the inner face of second housing 12B, generation is bumped against and produces abnormal sound, prevents the omission of sound simultaneously.

Fig. 2 is the exploded perspective view of the speaker unit from seeing another kind of execution mode of the present utility model above.

Fig. 3 is the exploded perspective view of seeing the speaker unit of another kind of execution mode of the present utility model from the back side.

As shown in Figure 2 and Figure 3, the speaker unit 21 of another kind of execution mode of the present utility model, shell 12 can be accommodated multiple micro loudspeaker units 13.Speaker unit 21 uses multiple micro loudspeaker units 13, can increase the acoustic pressure of speaker unit 21.

In speaker unit 21 of the present utility model, on substrate 16, form multiple the first pad 16A and conductive pattern 16C.Between multiple the first pad 16A, be electrically connected by conductive pattern 16C.In speaker unit 21, on a substrate 16, can connect multiple micro loudspeaker units 13.As a result, the energy increase of control assembly and the assembly operation program of speaker unit 21, thereupon, reduce the unit price of speaker unit 21.

Claims (5)

1. a speaker unit, comprise resinous box shell, micro loudspeaker unit and substrate, the second housing that described box shell comprises the first shell and is combined with described the first shell, and be provided with through hole, described micro loudspeaker unit is contained in described box shell, have sound before, with the described rightabout back side above, described substrate has the first surface being oppositely arranged with the described back side, with described first surface rightabout second, the first pad forming on described first surface, and the second pad being electrically connected with described the first pad forming on described second, at the inner face of described second housing so that the form that described the second pad exposes from described through hole arranges described substrate, described speaker unit is characterised in that, also be provided with lead-in wire, described lead-in wire is by wire, the stripping portion of exposing described wire after covering the insulator of described wire and removing described insulator forms, described stripping portion is connected with described the second pad, the described back side is provided with the flexible terminal that is crimped on described the first pad, the described inner face that is crimped on described the first shell above thus.

2. speaker unit according to claim 1, is characterized in that,

Between the inner face of described second and described second housing, there is sealing.

3. speaker unit according to claim 2, is characterized in that,

Described sealing is made up of adhesive.

4. speaker unit according to claim 1, is characterized in that,

Described micro loudspeaker unit is in multiple micro loudspeaker units.

5. speaker unit according to claim 4, is characterized in that,

Described the first pad is in multiple the first pads, and forms conductive pattern in described substrate, and described multiple the first pads are electrically connected by described conductive pattern.