TWI592033B - A voice coil with multi-coil speaker unit and speaker group - Google Patents

Description

a voice coil with multiple coil sets of speaker units and speakers

The present invention relates to a speaker unit and a speaker having a multi-coil set for a voice coil, in particular, an electrical contact of each coil of the first substrate is electrically connected to each outlet end of each coil group, and then a second The substrate and the first substrate are electrically connected to the contact point of the contact, so that the designer of the internal electrical connection of the speaker can be completed.

In the conventional speaker structure, the voice coil of the speaker usually has a coil set, and the coil set has two outlet ends for electrically connecting the sound source input terminals provided outside the speaker, and the electrical connection manner is usually directly The outlet end of the coil set extends directly to the input terminal of the sound source, so that the sound source signal can be transmitted to the coil set of the voice coil; however, for the small speaker, since the wire diameter of the coil set is usually thin, the voice coil is greatly increased. When swinging, the extended wire from the outlet end of the coil set to the input terminal of the sound source may be broken; thus, a magnetic wave is placed between the diaphragm and the voice coil, in addition to assisting in maintaining the voice coil and the diaphragm. The axial movement in the up and down direction prevents the voice coil and the diaphragm from colliding with other parts of the speaker, causing damage to the speaker, and avoiding an irregular vibration mode when the voice coil is swung up and down, thereby reducing the breakage of the extension wire. possibility.

Pressing a second time, if you want to change the output characteristics of the speaker, it is possible to use one coil coil with multiple coil sets. However, the number of outlets of the coil group is bound to double. If the above is used, the outlet end of the coil set is directly extended. The electrical connection to the input terminal of the audio source not only doubles the probability of the extension wire breaking, but also greatly increases the assembly time and difficulty.

The main object of the present invention is to provide a speaker unit and a speaker with a multi-coil set in a voice coil, and to have the effect of high electrical connection reliability.

Another object of the present invention is to have an assembly that is easy and quick.

In order to achieve the above effects, the structural features of the speaker unit of the present invention include: a bracket; a voice coil having a plurality of coil sets, each of the coil sets each having a pair of outlet ends; a first substrate having a a voice coil coupling portion and a first positioning portion, the voice coil coupling portion having a coil electrical contact corresponding to each of the outlet ends, the first positioning portion having a first substrate corresponding to each of the coil electrical contacts Electrical contacts, and electrically connecting each of the coil electrical contacts to each of the first substrate by a first line group, and the first positioning portion is coupled to the bracket, and is coupled by the voice coil The portion is combined with the voice coil, and each of the outlet ends is electrically connected to the corresponding electrical contact of the coil; a diaphragm, the outer circumference is coupled to the bracket; a magnetic return structure coupled to the bracket relative to the bracket The voice coil has a magnetic gap; and a second substrate has a second positioning portion and a signal input portion, and the second positioning portion has a second substrate electrical contact corresponding to each of the first substrate electrical contacts. The signal input unit corresponds to each of the second substrate electrical contacts a signal input electrical contact, and a second circuit group electrically connecting each of the second substrate electrical contacts and the signal input electrical contact, and the second positioning portion is coupled to the bracket, and each of the second The electrical contacts of the substrate are electrically connected to the electrical contacts of the first substrate.

Furthermore, each of the second substrate electrical contacts overlaps with each of the first substrate electrical contacts or is vertically overlapped; or further, the upper substrate electrical contacts have a tin-over hole; The bonding mode between the electrical contacts of the substrate is manual soldering, hot-melt soldering or laser soldering; however, the first substrate is a flexible circuit board, and the second substrate is a flexible circuit board, a rigid circuit board or a soft and hard composite circuit. board.

Moreover, the bracket has a magnetic return joint, a diaphragm joint surface, a retaining wall and a substrate joint surface from the inside to the outside; the retaining wall has a gap with respect to the first substrate; the substrate joint surface has a plurality of positioning The second positioning portion has a plurality of positioning holes for each of the positioning posts, or the second positioning portion is glued to the substrate bonding surface; the second substrate further includes a signal processing unit, and the signal processing unit The signal input electrical contact and the second line group are electrically connected.

In addition, the structural features of the speaker of the present invention include: a speaker having a box body and a cover body; a bracket coupled to the cover body; a voice coil having a plurality of coil groups, each of the coil groups having a pair of outlet ends; a first substrate having a voice coil coupling portion and a first positioning portion, the voice coil coupling portion having a coil electrical contact corresponding to each of the outlet ends, the first positioning portion corresponding to Each of the coil electrical contacts has a first substrate electrical contact, and the first circuit group is electrically connected to each of the coil electrical contacts and each of the first substrate electrical contacts by the first circuit group, and the first The positioning portion is coupled to the cover body, and the voice coil coupling portion is coupled to the voice coil, and each of the outlet ends is electrically connected to the corresponding electrical contact of the coil; a diaphragm, the outer circumference is coupled to the cover a magnetic backing structure coupled to the bracket and having a magnetic gap relative to the voice coil; and a second substrate having a second positioning portion and a signal input portion, the second positioning portion corresponding to each of the first substrates One-to-one contact has a second substrate electrical contact, the signal Each of the second substrate electrical contacts has a signal input electrical contact, and the second circuit set electrically connects the second substrate electrical contact with the signal input electrical contact, and the second positioning portion is coupled The first substrate electrical contact is electrically connected to each of the second substrate electrical contacts.

Furthermore, each of the second substrate electrical contacts overlaps with each of the first substrate electrical contacts or is vertically overlapped; or further, the upper substrate electrical contacts have a tin-over hole; The bonding mode between the electrical contacts of the substrate is manual soldering, hot-melt soldering or laser soldering; however, the first substrate is a flexible circuit board, and the second substrate is a flexible circuit board, a rigid circuit board or a soft and hard composite circuit. board.

Moreover, the bracket has a magnetic return joint, a diaphragm joint surface and a retaining wall in sequence from the inside to the outside, and the cover body has a bracket joint and a substrate joint surface from the inside to the outside; the retaining wall The substrate has a plurality of positioning posts, and the second positioning portion has a plurality of positioning holes relative to the positioning posts, or the second positioning portion is glued to the substrate bonding surface; The second substrate further includes a signal processing unit, the signal processing unit is electrically connected to the signal input electrical contact and the second circuit group; the cover has a receiving port relative to the signal processing unit, and the receiving port The signal processing unit is sealed in the speaker; the box or the cover has a venting hole, and the venting hole has a damping mesh.

Therefore, the present invention first electrically connects each of the coil electrical contacts of the first substrate to each of the outlet ends of each of the coil sets, and then the second substrate and the first substrate are in contact with each other. The electrical connection can complete the electrical connection inside the speaker, and the first substrate also has the effect of elastic wave, and has the advantages of high electrical connection reliability and easy and fast assembly.

First, referring to [FIG. 1] to [FIG. 3], the first embodiment of the speaker unit of the present invention includes: a bracket 10, a voice coil 20, a first substrate 30, and a diaphragm 40. a magnetic circuit structure 50, the first substrate 30 is a flexible circuit board, and the second substrate 60 is a flexible circuit board, a rigid circuit board or a soft and hard composite circuit board; wherein the bracket 10 is inside The outer surface has a magnetic return joint 11 , a diaphragm joint surface 12 , a retaining wall 13 and a substrate joint surface 14 . The retaining wall 13 has a notch 131 opposite to the first substrate 30 , and the substrate joint surface 14 has a number of positioning posts 141; the voice coil 20 has a plurality of coil sets 21, each of the coil sets 21 having a pair of outlet ends 211; the diaphragm 40 has a central portion 41 and a hanging portion 42 surrounding the central portion 41, The outer periphery of the suspension portion 42 is coupled to the bracket 10 and the top surface of the first substrate 30; the magnetic return structure 50 is coupled to the bracket 10 and has a magnetic gap 51 with respect to the voice coil 20.

The first substrate 30 has a voice coil coupling portion 31 and a first positioning portion 32. The voice coil coupling portion 31 has a coil electrical contact 311 corresponding to each of the outlet ends 211. The first positioning portion 32 corresponds to Each of the coil electrical contacts 311 has a first substrate electrical contact 321 and is electrically connected to the coil electrical contact 311 and each of the first substrates by a first circuit group (not shown). The first positioning portion 32 is coupled to the substrate bonding surface 14 of the bracket 10, and the bottom surface of the voice coil coupling portion 31 is coupled to the upper edge of the voice coil 20, and each of the outlet ends 211 Soldering to each of the corresponding coil electrical contacts 311.

The second substrate 60 has a second positioning portion 61 and a signal input portion 62. The second positioning portion 61 has a second substrate electrical contact 611 corresponding to each of the first substrate electrical contacts 321 . The portion 62 corresponding to each of the second substrate electrical contacts 611 has a signal input electrical contact 621, and the second circuit group 63 is electrically connected to each of the second substrate electrical contacts 611 and the signal input electrical contact 621. The signal input electrical contact 621 is a metal terminal or a connector, and the second positioning portion 61 is coupled to the top surface of the substrate bonding surface 14 of the bracket 10 and the top surface or the bottom surface of the first positioning portion 32, and each of the first The two substrate electrical contacts 611 and the first substrate electrical contacts 321 are point-to-point soldered, and the second positioning portion 61 has a plurality of positioning holes 612 opposite to the positioning posts 141; the second substrate 60 may further include a The signal processing unit 64 is electrically connected to the signal input electrical contact 621 and the second line group 63 for processing the electrical signal input by the signal input unit 62, and processing the processed electrical signal. Passing the second line group 63 into the first a substrate 30 and a voice coil 20 electrically connected to the first substrate 30; wherein each of the second substrate electrical contacts 611 is superposed on each of the first substrate electrical contacts 321 or further The second substrate electrical contact 611 has a through-hole 613, and the second substrate electrical contact 611 is coupled to each of the first substrate electrical contacts 321 through the solder on the through-hole 613; however, it can also be manually soldered. And hot-pressed tin soldering or laser soldering combines each of the second substrate electrical contacts with each of the first substrate electrical contacts.

Next, referring to FIG. 4, the second embodiment of the speaker unit of the present invention is different from the first embodiment in that the substrate bonding surface 14a of the bracket 10a has no positioning post, and the second substrate 60a is The second positioning portion 61a has no positioning holes, and the second positioning portion 61a is adhesively attached to the substrate bonding surface 14a; and the second substrate electrical contact 611a of the second substrate 60a is located on the first substrate. The first substrate electrical contact 321a of the first positioning portion 32a of the 30a is misaligned under the first substrate electrical contact 321a, and the second substrate electrical contact 611a is combined with each of the first substrate electrical contacts 321a by soldering at the offset. .

Furthermore, referring to [FIG. 5] to [FIG. 7], the speaker system of the present invention includes: a bracket 10b, a voice coil 20, a first substrate 30, a diaphragm 40, and a magnetic return structure 50. a second substrate 60 and a speaker 70, the first substrate 30 is a flexible circuit board, and the second substrate 60 is a flexible circuit board, a rigid circuit board or a soft and hard composite circuit board; wherein the speaker 70 has a box The cover body 72 has a bracket joint 721 and a substrate joint surface 722. The base plate 722 has a plurality of positioning posts 723. The bracket 10b is coupled to the cover 72. The bracket 10b has a magnetic back joint 11 , a diaphragm joint surface 12 and a retaining wall 13 from the inside to the outside, and the retaining wall 13 has a notch 131 opposite to the first substrate 30; The voice coil 20 has a plurality of coil sets 21, each of which has a pair of outlet ends 211; the diaphragm 40 has a central portion 41 and a hanging portion 42 surrounding the central portion 41, the hanging portion 42 The outer periphery is coupled to the bracket 10 and the top surface of the first substrate 30; the magnetic return structure 50 is coupled to the bracket 10b and opposite to the voice coil 20 Magnetic gap 51.

The first substrate 30 has a voice coil coupling portion 31 and a first positioning portion 32. The voice coil coupling portion 31 has a coil electrical contact 311 corresponding to each of the outlet ends 211. The first positioning portion 32 corresponds to Each of the coil electrical contacts 311 has a first substrate electrical contact 321 and is electrically connected to the coil electrical contact 311 and each of the first substrates by a first circuit group (not shown). The first positioning portion 32 is coupled to the substrate bonding surface 722 of the cover 72, and the bottom surface of the voice coil coupling portion 31 is coupled to the upper edge of the voice coil 20, and each of the outlet ends 211 is soldered to each of the corresponding coil electrical contacts 311.

The second substrate 60 has a second positioning portion 61 and a signal input portion 62. The second positioning portion 61 has a second substrate electrical contact 611 corresponding to each of the first substrate electrical contacts 321 . The portion 62 corresponding to each of the second substrate electrical contacts 611 has a signal input electrical contact 621, and the second circuit group 63 is electrically connected to each of the second substrate electrical contacts 611 and the signal input electrical contact 621. The signal input electrical contact 621 is a metal terminal or a connector, and the second positioning portion 61 is coupled to the top surface of the substrate bonding surface 722 of the cover 72 and the top surface or the bottom surface of the first positioning portion 32, and the respective The second substrate electrical contact 611 and the first substrate electrical contact 321 are point-to-point soldered, and the second positioning portion 61 has a plurality of positioning holes 612 with respect to each of the positioning posts 723; the second substrate 60 may further include a signal processing unit 64, the signal processing unit 64 is electrically connected to the signal input electrical contact 621 and the second line group 63, and is configured to process the electrical signal input by the signal input unit 62, and process the processed electrical signal. Passing in the second line group 63 a substrate 30 and a voice coil 20 electrically connected to the first substrate 30, and the cover 72 has a receiving port 724 opposite to the signal processing unit 64, and the signal processing unit 64 is sealed by the receiving port 724. In the speaker 70, the box body 71 or the cover body 72 has a venting hole (not shown), and the venting hole has a damping mesh cloth for balancing the air pressure inside and outside the speaker and facilitating heat dissipation of the speaker; Each of the second substrate electrical contacts 611 is superposed on each of the first substrate electrical contacts 321 or further, and each of the second substrate electrical contacts 611 has a through tin hole 613 and passes through the through tin hole. Each of the second substrate electrical contacts 611 is coupled to each of the first substrate electrical contacts 321 by soldering at 613; however, each of the second substrate electrical contacts may be soldered by manual soldering, hot press soldering or laser soldering Bonding with each of the first substrate electrical contacts.

In addition, the speaker of the present invention may also have a positioning post on the substrate bonding surface of the cover body, and the second positioning portion of the second substrate has no positioning hole, and the second positioning portion is glued to the substrate bonding surface. And the second substrate electrical contact of the second substrate is located under the first substrate electrical contact of the first positioning portion of the first substrate and is misaligned, and the solder is placed on the misalignment. The second substrate electrical contact is combined with each of the first substrate electrical contacts.

Based on the constitution, the present invention is designed such that the output characteristics of the speaker can be changed by control (related to the control mode and the result of the change, not the technical features of the present invention, and will not be described again), and the single voice coil 20 is designed to have A plurality of coil sets 21, so that a plurality of outlet ends 211 are added. If the electrical connection of the outlet end of the coil set is directly extended to the input terminal of the sound source, the possibility of extension of the extension wire is In addition to the multiplication of the number of outlets of the coil assembly, the assembly time and difficulty are greatly increased; therefore, the present invention first utilizes the coil electrical contacts 311 of the first substrate 30, 30a and each of the coil assemblies 21 Each of the outlet ends 211 is electrically connected, and the second substrate 60, 60a is electrically connected to the first substrate 30, 30a, and the second substrate 60, 60a is completed. The signal input electrical contact 621 is electrically connected to each of the coil sets 21, and the first substrate 30, 30a also has the effect of elastic waves; therefore, the invention has high electrical connection reliability and is easy and quick to assemble. The effect.

In summary, the technical means disclosed in the present invention have the invention patents such as "novelty", "progressiveness" and "available for industrial use", and pray for the patent to encourage the invention. German sense.

The drawings and the descriptions of the present invention are merely preferred embodiments of the present invention, and those skilled in the art, which are subject to the spirit of the present invention, should be included in the scope of the patent application.

10, 10a, 10b‧‧‧ bracket
11‧‧‧Magnetic back junction
12‧‧‧Diaphragm joint
13‧‧‧Retaining wall
131‧‧‧ gap
14, 14a‧‧‧ substrate joint surface
141‧‧‧Positioning column
20‧‧‧ voice coil
21‧‧‧ coil group
211‧‧‧ outlet
30, 30a‧‧‧ first substrate
31‧‧‧ voice coil joint
311‧‧‧Coil electrical contacts
32, 32a‧‧‧First Positioning Department
321,321a‧‧‧First substrate electrical contacts
40‧‧‧Densor
41‧‧‧ Central Department
42‧‧‧Overhanging
50‧‧‧Magnetic structure
51‧‧‧Magnetic gap
60, 60a‧‧‧ second substrate
61, 61a‧‧‧Second Positioning Department
611, 611a‧‧‧second substrate electrical contacts
612‧‧‧Positioning holes
613‧‧‧Tie Tin
62‧‧‧Signal input section
621‧‧‧Signal input electrical contacts
63‧‧‧Second line group
64‧‧‧Signal Processing Unit
70‧‧‧ Speaker
71‧‧‧ cabinet
72‧‧‧ cover
721‧‧‧ bracket joint
722‧‧‧substrate joint surface
723‧‧‧Positioning column
724‧‧‧容口

Fig. 1 is an exploded perspective view showing the first embodiment of the speaker unit of the present invention. Fig. 2 is a structural appearance view showing a first embodiment of the speaker unit of the present invention. Fig. 3 is a cross-sectional view showing the structure of a first embodiment of the speaker unit of the present invention. Fig. 4 is an exploded perspective view showing a second embodiment of the speaker unit of the present invention. Fig. 5 is an exploded perspective view showing the speaker of the present invention. Fig. 6 is a structural appearance view of a speaker of the present invention. Fig. 7 is a cross-sectional view showing the structure of a speaker of the present invention.

10‧‧‧ bracket

11‧‧‧Magnetic back junction

12‧‧‧Diaphragm joint

13‧‧‧Retaining wall

131‧‧‧ gap

14‧‧‧Substrate bonding surface

141‧‧‧Positioning column

20‧‧‧ voice coil

21‧‧‧ coil group

211‧‧‧ outlet

30‧‧‧First substrate

31‧‧‧ voice coil joint

311‧‧‧Coil electrical contacts

32‧‧‧First Positioning Department

321‧‧‧First substrate electrical contacts

40‧‧‧Densor

41‧‧‧ Central Department

42‧‧‧Overhanging

50‧‧‧Magnetic structure

51‧‧‧Magnetic gap

60‧‧‧second substrate

61‧‧‧Second Positioning Department

611‧‧‧Second substrate electrical contacts

612‧‧‧Positioning holes

613‧‧‧Tie Tin

62‧‧‧Signal input section

621‧‧‧Signal input electrical contacts

63‧‧‧Second line group

64‧‧‧Signal Processing Unit

Claims (22)

A speaker unit having a multi-coil set, comprising: a bracket; a voice coil having a plurality of coil sets, each of the coil sets each having a pair of outlet ends; a first substrate having a tone a coil joint portion and a first positioning portion, wherein the voice coil joint portion has a coil electrical contact corresponding to each of the outlet ends, and the first positioning portion has a first substrate electrical corresponding to each of the coil electrical contacts a contact point, and electrically connecting each of the coil electrical contacts and each of the first substrate electrical contacts by a first line group, and the first positioning portion is coupled to the bracket, and the voice coil joint portion is coupled Combining with the voice coil, and electrically connecting each of the outlet ends to the corresponding electrical contact of the coil; a diaphragm coupled to the bracket; a magnetic return structure coupled to the bracket and having opposite to the voice coil And a second substrate having a second positioning portion and a signal input portion, wherein the second positioning portion has a second substrate electrical contact corresponding to each of the first substrate electrical contacts, the signal input portion Corresponding to each of the second substrate electrical contacts having a signal Into the electrical contact, and electrically connected to the second substrate electrical contact and the signal input electrical contact by the second circuit group, and the second positioning portion is coupled to the bracket, and the second substrate is electrically connected The contacts are electrically connected to the first substrate electrical contacts. The voice coil of claim 1 has a multi-coil speaker unit, wherein each of the second substrate electrical contacts overlaps with each of the first substrate electrical contacts or is vertically offset. One of the voice coils described in claim 2 has a multi-coil speaker unit, wherein the upper substrate electrical contact further has a through-hole. The voice coil of claim 2 or 3 has a multi-coil speaker unit, wherein the bonding manner between the electrical contacts of the substrate is manual welding, hot-melt soldering or laser welding. The voice coil of claim 1, wherein the first substrate is a flexible circuit board, and the second substrate is a flexible circuit board, a rigid circuit board or Soft and hard composite circuit board. A voice coil according to claim 5, wherein the voice coil has a multi-coil speaker unit, wherein the bracket has a magnetic back joint, a diaphragm joint surface, a retaining wall and a step from the inside to the outside. Substrate bonding surface. A voice coil according to claim 6 is characterized in that the voice coil has a multi-coil speaker unit, wherein the retaining wall has a gap with respect to the first substrate. The voice coil of claim 7 has a multi-coil speaker unit, wherein the substrate bonding surface has a plurality of positioning posts, and the second positioning portion has a plurality of positioning holes with respect to each of the positioning posts. The voice coil of claim 7 has a multi-coil speaker unit, wherein the second positioning portion is glued to the substrate bonding surface. The voice coil of claim 6 has a multi-coil speaker unit, wherein the second substrate further comprises a signal processing unit, the signal processing unit and the signal input electrical contact and the second line Group electrical connection. A speaker with a multi-coil set for a voice coil includes: a speaker having a box body and a cover body; a bracket coupled to the cover body; a voice coil having a plurality of coil sets, each of the coil sets Each of the first substrate has a voice coil coupling portion and a first positioning portion, and the voice coil coupling portion has a coil electrical contact corresponding to each of the outlet ends, the first positioning Corresponding to each of the coil electrical contacts, having a first substrate electrical contact, and electrically connecting each of the coil electrical contacts and each of the first substrate by a first line group, and The first positioning portion is coupled to the cover body, and the voice coil coupling portion is coupled to the voice coil, and each of the outlet ends is electrically connected to the corresponding electrical contact of the coil; a diaphragm is coupled to the a magnetic back structure, coupled to the bracket and having a magnetic gap with respect to the voice coil; and a second substrate having a second positioning portion and a signal input portion, the second positioning portion corresponding to each of the first substrates One-to-one contact has a second substrate electrical contact, the signal The input portion corresponding to each of the second substrate electrical contacts has a signal input electrical contact, and the second circuit group is electrically connected to each of the second substrate electrical contacts and the signal input electrical contact, and the second positioning portion is configured The first substrate electrical contact is electrically connected to each of the second substrate electrical contacts. The voice coil of claim 11 has a multi-coil set speaker, wherein each of the second substrate electrical contacts overlaps with each of the first substrate electrical contacts or is vertically offset. The voice coil of claim 12 has a multi-coil set speaker, wherein the upper substrate electrical contact further has a through-hole. The voice coil of claim 12 or 13 has a multi-coil set of speakers, wherein the bonding manner between the electrical contacts of the substrate is manual welding, hot-melt soldering or laser welding. The voice coil of claim 11, 12 or 13 has a multi-coil set speaker, wherein the first substrate is a flexible circuit board, and the second substrate is a flexible circuit board, a rigid circuit board or a soft and hard circuit. Composite circuit board. The voice coil of claim 15 has a multi-coil set speaker, wherein the bracket has a magnetic return joint, a diaphragm joint surface and a retaining wall sequentially from the inside to the outside, the cover body From the inside to the outside, there is a bracket joint and a substrate joint surface. A voice coil according to claim 16 is characterized in that the voice coil has a multi-coil set speaker, wherein the retaining wall has a gap with respect to the first substrate. The voice coil of claim 16 has a multi-coil set speaker, wherein the substrate joint surface has a plurality of positioning posts, and the second positioning portion has a plurality of positioning holes with respect to each of the positioning posts. The voice coil of claim 17 has a multi-coil set of speakers, wherein the second positioning portion is glued to the substrate bonding surface. The voice coil of claim 16 has a multi-coil set speaker, wherein the second substrate further comprises a signal processing unit, the signal processing unit and the signal input electrical contact and the second line set Sexual connection. The voice coil of claim 20 has a multi-coil set speaker, wherein the cover body has a receiving port with respect to the signal processing unit, and the signal processing unit is sealed to the speaker by the receiving port. Inside. A voice coil according to claim 16 is characterized in that the sound box has a multi-coil set speaker, wherein the box body or the cover body has a venting hole, and the vent hole has a damping mesh cloth thereon.