CN211296938U - Loudspeaker assembled without glue dispensing - Google Patents
Loudspeaker assembled without glue dispensing Download PDFInfo
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- CN211296938U CN211296938U CN202020024786.1U CN202020024786U CN211296938U CN 211296938 U CN211296938 U CN 211296938U CN 202020024786 U CN202020024786 U CN 202020024786U CN 211296938 U CN211296938 U CN 211296938U
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- voice coil
- loudspeaker
- magnetic circuit
- frame
- circuit assembly
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Abstract
The application discloses speaker of equipment is glued to no point includes: a pot body; the voice coil loudspeaker voice coil, its joint the basin body is in order to form the vibration subassembly, the voice coil loudspeaker voice coil skeleton of voice coil loudspeaker voice coil with the junction between the basin body has the first butt fusion layer that sees through welding process and forms, and magnetic circuit assembly is including being fixed in yoke, magnet group and the china department of an organic whole, and the basin frame joint in magnetic circuit assembly reaches vibration subassembly, wherein, the basin frame with the junction between the magnetic circuit assembly has the fastener of moulding plastics that sees through injection moulding process and forms, just the basin frame with the junction between the magnetic circuit assembly has the second butt fusion layer that sees through welding process.
Description
Technical Field
The present disclosure relates to speakers, and particularly to a speaker assembled by dispensing-free method.
Background
Speakers, otherwise known as "horns," are widely popular as personal music devices. The loudspeaker mainly comprises a vibration system, a magnetic circuit system and a basin frame; the magnetic circuit system comprises a permanent magnet, a yoke and a washer; the vibration system comprises a basin body (a vibrating diaphragm), a voice coil and a fixed core support piece (a damper); generally, glue made of high polymer materials is used for gluing between a vibrating diaphragm (basin body) and a frame or between the vibrating diaphragm (basin body) and a suspension edge, while a permanent magnet, a yoke and a washer are also fixed at the bottom of a basin frame by using the glue, because parts needing to be adhered are often materials with smooth surfaces, the adhering effect of the glue coated on the smooth surfaces is limited, and because the glue has no higher heat resistance, the bonding force of a molecular structure is reduced in strength under a high-temperature environment and is easy to break, and moisture is easy to make the water-based glue wet and gradually lose viscosity, and a loudspeaker fixed by using the glue needs to wait for volatilization of an organic solvent and solidification of the glue, and needs to be treated by stages, so that the processing time is long, and the space of a factory building needs to be occupied for storing the loudspeaker components to be solidified by the glue.
In addition to the problem of whitening when using an adhesive, the organic solvent used in the glue preparation process may cause an unpleasant odor, harm to human breath and nervous system, great harm to users or production line operators, and even cancer or leukemia.
In addition, in response to environmental regulations, chemical waste disposal requires treatment to avoid environmental pollution, and a solvent specially used for recycling clean glue is generally used, which also increases waste disposal cost.
Accordingly, there is a need for a speaker process that can reduce the dispensing process or even eliminate the need for dispensing.
SUMMERY OF THE UTILITY MODEL
In view of the above problems in the related art, the present application provides a speaker without dispensing process and without dispensing assembly, which does not use glue or dispensing process during the manufacturing process, so that the finished product of the speaker will not cause damage to the environment and human body, and even will not have the phenomenon of degumming.
The technical scheme of the application is realized as follows:
according to an aspect of the present application, there is provided a dispensing-free assembled speaker, comprising: a pot body; the voice coil is jointed with the pot body to form a vibration assembly, and a first welding layer formed through a welding process is arranged at the joint between the voice coil framework of the voice coil and the pot body; the magnetic circuit component comprises a yoke iron, a magnet group and a washer which are fixed into a whole; and a frame coupled to the magnetic circuit assembly and the vibration assembly, wherein a junction between the frame and the magnetic circuit assembly has an injection-molded joint formed through an injection molding process, and a junction between the frame and the magnetic circuit assembly has a second fusion-bonded layer through the fusion-bonding process.
According to an embodiment of the application, the bowl body comprises: a vertebral basin; and the suspension edge is formed on the outer edge of the cone by an injection molding process.
According to an embodiment of the application, the cone is formed by hot pressing a fiber prepreg cloth coated by thermoplastic material.
According to an embodiment of the application, the drum paper of the fiber prepreg is a glass fiber prepreg or a carbon fiber prepreg, and the thermoplastic material is polycarbonate, polyethylene terephthalate, polyetherimide, or modified polypropylene.
According to embodiments herein, the overhang is a modified thermoplastic elastomer material, including a thermoplastic modified polyurethane elastomer or a thermoplastic modified styrenic elastomer.
According to the embodiment of the application, the magnet assembly comprises a positive magnetic pole and a negative magnetic pole, and the magnetic circuit assembly further comprises a locking piece and a corresponding fixing piece which are penetrated by one end of a coaxial space in the yoke, the positive magnetic pole, the washer and the negative magnetic pole and are mutually matched and fixed.
According to an embodiment of the present application, the magnet assembly includes a positive pole and a negative pole, and the magnetic circuit assembly further includes a plastic fixing member passing through a coaxial space among the yoke, the positive pole, the washer, and the negative pole, the plastic fixing member being formed through an injection molding process.
According to an embodiment of the application, the voice coil is electrically connected to the frame through a plastic material formed by an injection molding process.
According to the embodiment of the application, further including connect in the voice coil loudspeaker voice coil with the bullet ripples between the basin frame, wherein, play the ripples with the voice coil loudspeaker voice coil reaches have respectively between the basin frame and connect by the laser welding layer that laser welding technology formed.
According to an embodiment of the application, the welding process is a laser welding process.
According to an embodiment of the application, the injection molding process is a co-injection molding process.
The loudspeaker obtained by the dispensing-free manufacturing process meets the environmental protection requirement in the manufacturing process, does not harm consumers and manufacturing personnel, effectively reduces the concentration of organic volatile matters in air, does not need to wait for glue solidification for a long time, does not generate redundant consumable materials to cause material waste when the components are connected, does not generate dust and flash, does not have the degumming phenomenon, and can replace the traditional glue production mode; after the loudspeaker is assembled, the loudspeaker has a good frequency response curve when subjected to environmental test and power test, and even the high-tone frequency can be prolonged to 35KHz, so that the loudspeaker can be used for replacing a common aluminum film loudspeaker.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic perspective cross-sectional view of a speaker basin assembled without dispensing according to an embodiment of the present disclosure;
fig. 2 is a schematic cross-sectional view of a loudspeaker according to an embodiment of the present application; and
fig. 3 is a schematic cross-sectional view of a loudspeaker equipped with a connector according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments that can be derived from the embodiments given herein by a person of ordinary skill in the art are intended to be within the scope of the present disclosure.
The present application includes a dispensing-free assembled speaker 10, which at least includes: a pot (paper cone)11, a voice coil (voice coils)12, a magnetic circuit assembly 20, and a pot frame 30.
The basin 11 includes a cone 111 (cone, in this application, the cone is taken as an example, and may also be a vibrating diaphragm) and a suspension edge 112(surrounding), wherein the suspension edge 112 is formed at the outer edge of the cone 111 by an injection molding process, the injection molding process is to place the cone 111 in a mold cavity, and form the suspension edge 112 above the outer edge of the cone 111 by a co-injection molding (co-molding) process, and the suspension edge 112 is formed by a modified thermoplastic elastomer material, and includes a thermoplastic modified polyurethane elastomer or a thermoplastic modified styrene elastomer; the thermoplastic modified polyurethane elastomer comprises a mixture of a thermoplastic polyurethane elastomer, polycarbonate or polyethylene terephthalate or polyetherimide, so that the suspended edge 112 reaches the tensile strength range of 30-80 MPa and the hardness of 65-95 Shore A; the cone 111 is formed by hot pressing of a fiber prepreg cloth coated with a thermoplastic material; wherein the drum paper of the fiber prepreg is thermoplastic glass fiber prepreg or thermoplastic carbon fiber prepreg, and the thermoplastic material is polycarbonate, polyethylene terephthalate, polyetherimide, polyphenyl ether or modified polypropylene; wherein the modified polypropylene comprises a mixture of polypropylene, polyurethane and carbon fiber; thus, the basin 11 of the present embodiment has the high rigidity cone 111 and the high elasticity suspension edge 112 without using a dispensing process.
And a voice coil 12 which is joined to the bowl 11 to constitute the vibration assembly 10, wherein a joint between a voice coil bobbin 121(bobbin) of the voice coil 12 and the bowl 11 has a first welding layer 122 formed through a welding process, which is a laser welding process.
A magnetic circuit assembly 20 including a yoke 21(yoke, in this case, U-yoke), a magnet group 22, and a washer 23 (washbher) fixed to one body, wherein the magnet group 22 includes a positive pole 221(positive pole) and a negative pole 222(negative pole); further, the magnetic circuit assembly 20 further includes a bolt 24 passing through one end of the coaxial space among the yoke 21, the positive pole 221, the washer 23, and the negative pole 222, and a corresponding nut 25 at the other end of the coaxial space, which are tightly fitted and locked with each other to fix the magnetic circuit assembly 20 formed by the yoke 21, the positive pole 221, the washer 23, and the negative pole 222.
The magnetic circuit assembly 20 may also include a plastic fixing member (not shown) formed by an injection molding process, which penetrates through the coaxial space of the yoke 21, the positive pole 221, the washer 23, and the negative pole 222, and the magnetic circuit assembly 20 composed of the yoke 21, the positive pole 221, the washer 23, and the negative pole 222 is fixed by solidifying the plastic fixing member; the bolt-and-nut injection molding process described above, including but not limited to welding, riveting, etc., can be performed, and is also covered by the protection concept of the present application.
A pot frame 30 joined to the magnetic circuit unit 20 and the vibration unit 10; wherein, the joint between the basin frame 30 and the yoke 21 of the magnetic circuit component is provided with an injection-molded joint 31 formed by an injection molding process, and the joint between the basin frame 30 and the suspended edge 112 of the magnetic circuit component 10 is provided with a second welding layer 32 formed by the welding process; the injection molding process may be a laser welding process, or may be a plastic material joining the overhanging edge 112 of the vibration component 10 and the basin frame 30, wherein the injection molding process may be a co-injection molding process.
Further, the speaker of the present application further includes a connector 40(connector) electrically connected to the voice coil 12, wherein the connector 40 is electrically connected to the voice coil 12 to transmit signals, and the connector 40 is connected to the frame 30 through a plastic material formed by an injection molding process.
Further, the speaker of the present application further includes a damper (not shown) connected between the voice coil 12 and the frame 30, wherein the damper and the voice coil 12 and the frame 30 are respectively connected by a laser welding layer (not shown) formed by a laser welding process, or the damper and the voice coil 12 and the frame 30 can be connected by an injection molding process.
Similarly, the cone may be formed with a dust cap (not shown) that may be attached to the cone 111 by injection molding or laser welding, as desired.
The dispensing-free process for manufacturing the loudspeaker according to the embodiment of the application mainly comprises the following steps:
forming a pot body (paper cone);
engaging the basin with voice coils (voice coils) to form a vibrating assembly;
fixing a yoke (yoke), a magnet group and a washer (washer) to form a magnetic circuit assembly;
joining the frame (basket) and the magnetic circuit assembly; and
the frame and the vibrating component are combined to assemble the loudspeaker.
No glue is used in the above process steps, as described in detail below.
The step of forming the pot body comprises the following steps: forming a cone (cone) or a diaphragm (diaphragm); and injection molding (overhanging) the overhanging edge of the cone or diaphragm.
Wherein, the step of shaping cone or vibrating diaphragm includes: hot-press molding the fiber pre-impregnated cloth drum paper coated by the thermoplastic material to form a cone or a vibrating diaphragm with a required shape; wherein the drum paper of the fiber prepreg is thermoplastic glass fiber prepreg or thermoplastic carbon fiber prepreg, and the thermoplastic material is polycarbonate, polyethylene terephthalate, polyetherimide, polyphenyl ether or modified polypropylene; wherein the modified polypropylene comprises a mixture of polypropylene, polyurethane and carbon fiber.
In the step of injection molding the suspension edge on the outer edge of the cone or the vibrating diaphragm, the cone or the vibrating diaphragm is placed in a mold cavity, and the suspension edge is formed above the outer edge of the cone or the vibrating diaphragm through a co-injection molding (co-molding) process and is made of a modified thermoplastic elastomer material, wherein the suspension edge comprises a thermoplastic modified polyurethane elastomer or a thermoplastic modified styrene elastomer; the thermoplastic modified polyurethane elastomer comprises a mixture of a thermoplastic polyurethane elastomer, polycarbonate or polyethylene terephthalate or polyetherimide, so that the suspension edge reaches the tensile strength range of 30-80 MPa, and the hardness reaches 65-95 Shore A; therefore, the basin body of the embodiment has a high-rigidity cone or vibrating diaphragm and a high-elasticity suspension edge, and a glue dispensing process is not needed.
The step of engaging the voice coil with the bowl includes: jointing the pot body and a voice coil framework (bobbin) of the voice coil through a welding process; the welding process may be a welding process, an ultrasonic welding process, or a laser welding process.
In the step of fixing the yoke, the magnet group and the washer to form the magnetic circuit assembly, the magnet group comprises a positive magnetic pole (positive magnet) and a negative magnetic pole (negative magnet), and the yoke can be a U-shaped iron; which comprises the following steps: a bolt penetrates through the coaxial space of the yoke, the positive magnetic pole, the washer and the negative magnetic pole and is in threaded locking and fastening fit with a corresponding nut, so as to fix a magnetic circuit assembly consisting of the yoke, the positive magnetic pole, the washer and the negative magnetic pole; or, the plastic material which can be injected and molded is arranged in the coaxial space of the yoke, the positive magnetic pole, the washer and the negative magnetic pole, and the magnetic circuit component consisting of the yoke, the positive magnetic pole, the washer and the negative magnetic pole is fixed by solidifying the plastic material; the bolt-and-nut injection molding process described above, including but not limited to welding, riveting, etc., can be performed, and is also covered by the protection concept of the present application.
The step of engaging the frame with the magnetic circuit assembly includes: the yoke of the basin frame and the magnetic circuit component is jointed through plastic materials of an injection molding process; the injection molding process may be performed by, but not limited to, co-injection molding, fusion welding, soldering, etc.
The step of engaging the frame with the vibration assembly includes: the suspended edge of the vibration component is jointed with the basin frame through a laser welding process; alternatively, the overhanging edge of the vibrating component and the basin frame are joined by a plastic material through an injection molding process, wherein the injection molding process can be co-injection molding.
Furthermore, the dispensing-free process for manufacturing the speaker of the present application may further include bonding a connector (connector) to the frame through a plastic material of an injection molding process, wherein the connector is electrically connected to the voice coil to transmit signals.
Further, the dispensing-free process for manufacturing the speaker of the present application may further include connecting the damper (not shown) with the voice coil and the frame through an injection molding process or a laser welding process; similarly, the dust cap and the cone can be connected by injection molding or laser welding, if desired.
The loudspeaker obtained by the dispensing-free manufacturing process meets the requirement of environmental protection in the manufacturing process, does not harm consumers and manufacturing personnel, effectively reduces the concentration of Volatile Organic Compounds (VOC) in the air, does not need to wait for glue solidification for a long time, does not generate redundant consumables to cause material waste when the components are connected, does not generate dust or flash, and does not have the phenomenon of degumming; after the loudspeaker is assembled, the loudspeaker has a good frequency response curve when subjected to environmental test and power test, and even the high-tone frequency can be prolonged to 35KHz, so that the loudspeaker can be used for replacing a common aluminum film loudspeaker.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (11)
1. A loudspeaker assembled without dispensing, comprising:
a pot body;
the voice coil is jointed with the pot body to form a vibration assembly, and a first welding layer formed through a welding process is arranged at the joint between the voice coil framework of the voice coil and the pot body;
the magnetic circuit component comprises a yoke iron, a magnet group and a washer which are fixed into a whole; and
and a frame coupled to the magnetic circuit assembly and the vibration assembly, wherein a junction between the frame and the magnetic circuit assembly has an injection-molded joint formed through an injection molding process, and a junction between the frame and the magnetic circuit assembly has a second fusion-bonded layer formed through the fusion-bonding process.
2. The loudspeaker of claim 1, wherein the basin comprises:
a vertebral basin; and
and the suspension edge is formed on the outer edge of the cone by an injection molding process.
3. The loudspeaker of claim 2 wherein said cone is formed by hot pressing a thermoplastic coated fabric pre-impregnated cone paper.
4. The loudspeaker of claim 2 wherein the drum paper of the fiber prepreg is a glass fiber prepreg or a carbon fiber prepreg and the thermoplastic material is polycarbonate, polyethylene terephthalate, polyetherimide, or modified polypropylene.
5. The loudspeaker of claim 2, wherein the suspension edge is a modified thermoplastic elastomer material comprising a thermoplastic modified polyurethane elastomer or a thermoplastic modified styrenic elastomer.
6. The loudspeaker of claim 1, wherein the magnet assembly comprises a positive pole and a negative pole, and the magnetic circuit assembly further comprises a locking member and a corresponding fixing member, which are penetrated by one end of the coaxial space among the yoke, the positive pole, the washer and the negative pole, and are fixed in cooperation with each other.
7. The loudspeaker of claim 1, wherein the magnet assembly comprises a positive pole and a negative pole, the magnetic circuit assembly further comprising a plastic fixture passing through coaxial spaces in the yoke, the positive pole, the washer, and the negative pole, the plastic fixture being formed via an injection molding process.
8. The speaker of claim 1, further comprising a connector electrically connected to the voice coil, wherein the connector is bonded to the frame via a plastic material formed by an injection molding process.
9. The speaker of claim 1, further comprising a damper connected between the voice coil and the frame, wherein the damper is connected to the voice coil and the frame by a laser welding layer formed by a laser welding process.
10. A loudspeaker according to any one of claims 1 to 9, wherein the welding process is a laser welding process.
11. A loudspeaker according to any one of claims 1 to 9, wherein the injection moulding process is a co-injection moulding process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020024786.1U CN211296938U (en) | 2020-01-07 | 2020-01-07 | Loudspeaker assembled without glue dispensing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020024786.1U CN211296938U (en) | 2020-01-07 | 2020-01-07 | Loudspeaker assembled without glue dispensing |
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| Publication Number | Publication Date |
|---|---|
| CN211296938U true CN211296938U (en) | 2020-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020024786.1U Active CN211296938U (en) | 2020-01-07 | 2020-01-07 | Loudspeaker assembled without glue dispensing |
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| CN (1) | CN211296938U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113163320A (en) * | 2020-01-07 | 2021-07-23 | 惠州迪芬尼声学科技股份有限公司 | Dispensing-free manufacturing process for manufacturing loudspeaker and loudspeaker manufactured by dispensing-free manufacturing process |
| GB2591344A (en) * | 2020-01-07 | 2021-07-28 | Tymphany Acoustic Tech Ltd | Non-dispensing manufacturing process for making speaker and speaker thereof |
-
2020
- 2020-01-07 CN CN202020024786.1U patent/CN211296938U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113163320A (en) * | 2020-01-07 | 2021-07-23 | 惠州迪芬尼声学科技股份有限公司 | Dispensing-free manufacturing process for manufacturing loudspeaker and loudspeaker manufactured by dispensing-free manufacturing process |
| GB2591344A (en) * | 2020-01-07 | 2021-07-28 | Tymphany Acoustic Tech Ltd | Non-dispensing manufacturing process for making speaker and speaker thereof |
| GB2591344B (en) * | 2020-01-07 | 2022-06-22 | Tymphany Acoustic Tech Ltd | Non-dispensing manufacturing process for making speaker and speaker thereof |
| CN113163320B (en) * | 2020-01-07 | 2023-05-16 | 惠州迪芬尼声学科技股份有限公司 | Non-dispensing process for manufacturing loudspeaker and loudspeaker thereof |
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