Ultrathin loudspeaker

Abstract

The utility model relates to the technical field of loudspeakers, in particular to an ultra-thin loudspeaker, which comprises a frame, a magnetic circuit system and a vibration system. The vibration system comprises a closed vibration membrane without a middle hole, voice coils with the same number as the magnetic circuit assemblies, a plurality of conductive copper foils arranged on the closed vibration membrane and a plurality of brocade silk threads, each voice coil comprises two outgoing lines, and the closed vibration membrane is concavely provided with wire accommodating grooves with the same number as the outgoing lines; each leading-out wire is respectively positioned in the corresponding wire accommodating groove, the end part of each leading-out wire is respectively welded on the corresponding conductive copper foil, and one end of each brocade silk wire is respectively welded on the corresponding conductive copper foil; according to the utility model, the overall thickness is extremely thin while the sound quality effect is ensured, and the liquid crystal display screen can be better applied to ultrathin electronic products such as liquid crystal televisions, liquid crystal advertising boards and the like.

Description

Technical field:

[0001] The utility model relates to the technical field of loudspeakers, in particular to an extremely thin loudspeaker. Background technology:

[0002] A loudspeaker, also known as a horn, is a transducer device that converts electrical signals into sound signals. Loudspeakers are widely used in daily life; Figure 1-2 As shown, an existing speaker includes a basin frame 1, a magnetic circuit system 2, and a vibration system 3. The magnetic circuit system 2 includes a plurality of magnetic circuit components 21, each of which includes a U iron 211, a magnet 212, and a washer 213. The vibration system 3 includes a vibration membrane 31 with a central hole 311, voice coils 32 having the same number as the magnetic circuit components 21, a silk thread, and a wiring board 34. One end of each voice coil 32 is connected to the vibration membrane 31, and the other end of each voice coil 32 is inserted into the magnetic gap of the corresponding magnetic circuit component 21. Each voice coil 32 includes two lead wires 321, and the lead wires 321 of the voice coil 32 are welded together with the silk thread, and then the silk thread passes through the vibration membrane 31 with the central hole 311 and is welded to the On the wiring board 34; in order to connect the vibration membrane with the central hole to the voice coil, the height of the voice coil must exceed the size of the vibration membrane, resulting in the product thickness not reaching the ideal level. Since a certain height space of the speaker needs to be reserved to accommodate the silk thread, and the silk thread is easy to touch the vibration membrane and cause abnormal sound and speaker distortion, the overall height of the speaker cannot be made very low. In addition, since the voice coil is exposed and protrudes from the vibration membrane, a dust cap must be used, and adding a dust cap will undoubtedly increase the overall height of the speaker. Therefore, the above-mentioned existing speaker cannot be very thin and the overall height is relatively high. It cannot well meet the use requirements of ultra-thin speakers in ultra-thin electronic products such as LCD TVs and LCD billboards. There is an urgent need for an ultra-thin speaker. Utility model content:

[0003] The purpose of the utility model is to provide an ultra-thin speaker to address the deficiencies in the prior art. While ensuring the sound quality, the overall thickness is extremely thin, and the speaker can be better applied to ultra-thin electronic products such as LCD TVs and LCD billboards.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an extremely thin speaker, including a basin frame, a magnetic circuit system, and a vibration system, the magnetic circuit system includes a plurality of magnetic circuit components, the vibration system includes a closed vibration membrane without a central hole, voice coils with the same number as the magnetic circuit components, a plurality of conductive copper foils arranged on the closed vibration membrane, and a plurality of brocade wires, each voice coil includes two lead wires, the closed vibration membrane is concavely provided with a wire accommodating groove with the same number as the lead wires, each lead wire is respectively located in a corresponding wire accommodating groove, the end of each lead wire is respectively welded to the corresponding conductive copper foil, and one end of each brocade wire is respectively welded to the corresponding conductive copper foil.

[0005] A further improvement to the above scheme is that the vibration system also includes a suspension edge, which includes a mounting portion for connecting to a basin frame, a connecting portion for connecting to a closed vibration membrane, and an R-ring portion arranged between the mounting portion and the connecting portion.

[0006] A further improvement to the above scheme is that a plurality of wire eyelets are provided on the mounting portion, and the other end of each brocade wire is welded to the corresponding wire eyelet.

[0007] A further improvement to the above solution is that each of the wire eyelets is arranged close to a corresponding conductive copper foil.

[0008] A further improvement to the above scheme is that the utility model also includes a plurality of mirror-image spring waves, which include an outer support portion connected to the mounting portion, an inner support portion connected to the connecting portion, and a corrugated portion located between the outer support portion and the inner support portion, wherein the corrugated portion is located above the R-ring portion.

[0009] A further improvement to the above solution is that the corrugated portion is an arched structure.

[0010] A further improvement to the above scheme is that the R-ring portion is an annular groove structure, the inner circle of the R-ring portion is connected to the connecting portion, and the outer circle of the R-ring portion is connected to the mounting portion; the R-ring portion includes two long side groove segments and two short side groove segments, the groove length of the long side groove is greater than the groove length of the short side groove segment, the two long side groove segments are respectively located at the front and rear ends of the closed vibration membrane, and the two short side groove segments are respectively located on both sides of the closed vibration membrane.

[0011] A further improvement to the above solution is that each of the mirror-image elastic waves is located above the long side slot segment.

[0012] A further improvement to the above solution is that the hanging edge is made of rubber or silicone material.

[0013] A further improvement to the above solution is that each of the wire accommodating grooves is respectively arranged close to a corresponding conductive copper foil.

[0014] The utility model has the beneficial effects that: the utility model provides an extremely thin speaker, comprising a basin frame, a magnetic circuit system, and a vibration system, wherein the magnetic circuit system comprises a plurality of magnetic circuit components, and the vibration system comprises a closed vibration membrane without a central hole, voice coils having the same number as the magnetic circuit components, a plurality of conductive copper foils arranged on the closed vibration membrane, and a plurality of silk threads, wherein each voice coil comprises two lead wires, the closed vibration membrane is concavely provided with a wire accommodating groove having the same number as the lead wires, each lead wire is respectively located in a corresponding wire accommodating groove, an end of each lead wire is respectively welded to a corresponding conductive copper foil, and one end of each silk thread is respectively welded to a corresponding conductive copper foil;

[0015] Compared with the existing speakers that use a diaphragm with a central hole and must be equipped with a dust cap, the utility model uses a closed diaphragm without a central hole, thereby omitting the dust cap and reducing the overall height of the speaker; compared with the existing speakers in which the voice coil lead wire is directly welded to the brocade wire and the brocade wire passes through the diaphragm with a central hole and is welded to the terminal board, not only does it need to reserve a larger height space of the speaker to accommodate the brocade wire, but the brocade wire is also easy to touch the diaphragm and cause abnormal sound and speaker distortion. The utility model pre-sets a conductive copper foil on the closed diaphragm and concavely provides a wire accommodating groove on the closed diaphragm, the lead wires of each voice coil are respectively located in the corresponding wire accommodating groove, and the ends of the lead wires of each voice coil are respectively welded to the corresponding conductive copper foil. Not only does it not need to reserve a larger height space of the speaker to accommodate the brocade wire, thereby greatly reducing the overall height of the speaker so that the speaker can be made thinner, but there is no abnormal sound or speaker distortion caused by the contact between the brocade wire and the diaphragm, and the sound quality effect is more guaranteed. Description of the drawings:

[0016] Figure 1 The figure is a schematic diagram of the structure of an existing loudspeaker.

[0017] Figure 2 The figure is a schematic structural diagram of an existing loudspeaker from another perspective.

[0018] Figure 3 It is a structural schematic diagram of the utility model.

[0019] Figure 4 It is a schematic diagram of the internal structure of the utility model.

[0020] Figure 5 It is a structural schematic diagram of another embodiment of the utility model.

[0021] Explanation of the reference numerals: basin frame 1, magnetic circuit system 2, magnetic circuit assembly 21, U iron 211, magnet 212, washer 213, vibration system 3, vibration membrane 31, middle hole 311, voice coil 32, lead wire 321, brocade wire 33, terminal block 34, dust cap 35, closed vibration membrane 36, wire groove 361, conductive copper foil 37, suspension edge 38, mounting portion 381, connecting portion 382, ​​R ring portion 383, long side groove section 3831, short side groove 3832, wire eyelet 39, mirror elastic wave 4, outer support portion 41, inner support portion 42, corrugated portion 43. Specific implementation method:

[0022] The utility model will be further described below in conjunction with the accompanying drawings. Figure 3-5 As shown, the utility model includes a basin frame 1, a magnetic circuit system 2, and a vibration system 3. The magnetic circuit system 2 includes a plurality of magnetic circuit components 21. The vibration system 3 includes a closed vibration membrane 36 without a central hole 311, a voice coil 32 having the same number as the magnetic circuit components 21, a plurality of conductive copper foils 37 arranged on the closed vibration membrane 36, and a plurality of brocade wires 33. Each voice coil 32 includes two lead wires 321, and the closed vibration membrane 36 is concavely provided with a plurality of capacitive contacts having the same number as the lead wires 321. The wire groove 361, each lead wire 321 is respectively located in the corresponding wire groove 361, and the end of each lead wire 321 is respectively welded to the corresponding conductive copper foil 37, and one end of each silk wire 33 is respectively welded to the corresponding conductive copper foil 37; compared with the existing speaker using the vibration membrane 31 with the middle hole 311, which must be equipped with a dust cap 35, the utility model uses a closed vibration membrane 36 without the middle hole 311, so that the dust cap 35 can be omitted and the overall height of the speaker can be reduced; Compared with the existing speaker in which the lead wire 321 of the voice coil 32 is directly welded to the silk thread 33 and the silk thread 33 passes through the vibration membrane 31 with the middle hole 311 and then is welded to the terminal board 34, not only does it need to reserve a larger speaker height space to accommodate the silk thread 33, but the silk thread 33 is also easy to touch the vibration membrane 31 to cause abnormal sound and speaker distortion. The utility model pre-sets a conductive copper foil 37 on the closed vibration membrane 36 and concavely provides a wire accommodating groove 361 on the closed vibration membrane 36. The lead wire 321 of each voice coil 32 is respectively located in the corresponding wire accommodating groove 361, and the end of the lead wire 321 of each voice coil 32 is respectively welded to the corresponding conductive copper foil 37. Not only does it not need to reserve a larger speaker height space to accommodate the silk thread 33, thereby greatly reducing the overall height of the speaker so that the speaker can be made thinner, but there is no situation where the silk thread 33 and the vibration membrane 31 contact to cause abnormal sound and speaker distortion, and the sound quality effect is more guaranteed.

[0023] The vibration system 3 also includes a suspension 38, which is made of rubber or silicone material. The suspension 38 includes a mounting portion 381 for connecting to the basin frame 1, a connecting portion 382 for connecting to the closed vibration membrane 36, and an R-ring portion 383 arranged between the mounting portion 381 and the connecting portion 382; a plurality of wire eyelets 39 are provided on the mounting portion 381, and the other ends of each brocade wire 33 are respectively welded to the corresponding wire eyelets 39; compared with the previous existing practice of welding the brocade wire 33 to the terminal board 34, since the terminal board 34 will occupy a larger height space of the speaker, the utility model welds the brocade wire 33 to the wire eyelets 39 instead of welding it to the terminal board 34, thereby omitting the terminal board 34 and further making the speaker thinner.

[0024] Each of the wire eyelets 39 is respectively arranged close to the corresponding conductive copper foil 37, which not only makes it easier to connect the brocade wire 33, but also prevents the brocade wire 33 from being too long, and the overall structure is more reasonable and more practical.

[0025] The present invention also includes a plurality of mirror-image dampers 4, which include an outer support portion 41 for connecting to the mounting portion 381, an inner support portion 42 for connecting to the connecting portion 382, ​​and a corrugated portion 43 between the outer support portion 41 and the inner support portion 42, wherein the corrugated portion 43 is located above the R-ring portion 383 and is an arched structure. The present invention replaces the traditional dampers by providing the mirror-image dampers 4, thereby preventing the damper vibration from occupying the height of the speaker and allowing the speaker to be thinner.

[0026] The R ring portion 383 is an annular groove structure, the inner ring of the R ring portion 383 is connected to the connecting portion 382, ​​and the outer ring of the R ring portion 383 is connected to the mounting portion 381; the R ring portion 383 includes two long side groove sections 3831 and two short side groove sections 3832, the groove length of the long side groove is greater than the groove length of the short side groove section 3832, the two long side groove sections 3831 are respectively located at the front and rear ends of the closed vibration membrane 36, and the two short side groove sections 3832 are respectively located on both sides of the closed vibration membrane 36; since the closed vibration membrane 36 has poor torsional resistance in the long side direction, it is easy to occur in the long side direction. Deformation displacement, each of the mirrored elastic waves 4 of the utility model is located above the long side groove section 3831, so that the force around the closed vibration membrane 36 can be more uniform, thereby ensuring that the closed vibration membrane 36 always vibrates stably in the vertical direction without deformation and displacement in other directions, and can further ensure that the voice coil 32 always moves stably in the vertical direction without rubbing the coil to produce noise, speaker distortion, etc., and can further ensure that the speaker will not be distorted, can withstand high power well, and the sound quality of the speaker can be further guaranteed.

[0027] Each of the wire accommodating grooves 361 is respectively arranged close to the corresponding conductive copper foil 37, which not only makes it easier to connect the lead wires 321, but also prevents the lead wires 321 from being too long, making the overall structure more reasonable and more practical.

[0028] like Figure 4 As shown, each conductive copper foil 37 in this embodiment is more suitable for the series connection between each voice coil 32; Figure 5 As shown, the various conductive copper foils 37 in this embodiment are more suitable for parallel connection between various voice coils 32; the utility model can select the corresponding number and shape of conductive copper foils 37 according to specific usage conditions without specific limitation.

[0029] Working principle:

[0030] The lead wire 321 of each voice coil 32 is led out from the position of the wire groove 361 and welded to the conductive copper foil 37, one end of each silk thread 33 is respectively welded to the corresponding conductive copper foil 37, and the other end of each silk thread 33 is respectively welded to the wire eyelet 39; compared with the existing loudspeaker using a vibration membrane 31 with a central hole 311, which must be equipped with a dust cap 35, the utility model uses a closed vibration membrane 36 without a central hole 311, so that the dust cap 35 can be omitted and the overall height of the loudspeaker can be reduced; compared with the existing loudspeaker, the lead wire 321 of the voice coil 32 is directly welded to the silk thread 33, and the silk thread 33 passes through the vibration membrane 31 with a central hole 311 and is welded to the terminal board 34, which not only requires a larger space for the height of the loudspeaker The utility model pre-sets a conductive copper foil 37 on the closed vibration membrane 36 and concavely provides a wire accommodating groove 361 on the closed vibration membrane 36. The lead wires 321 of each voice coil 32 are respectively located in the corresponding wire accommodating groove 361. The ends of the lead wires 321 of each voice coil 32 are respectively welded to the corresponding conductive copper foil 37. Not only does it not need to reserve a large height space for the speaker to accommodate the silk wire 33, thereby greatly reducing the overall height of the speaker so that the speaker can be made thinner, but there is no abnormal sound or speaker distortion caused by the contact between the silk wire 33 and the vibration membrane 31, and the sound quality effect is more guaranteed.

[0031] Of course, the above is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. An ultra-thin loudspeaker, comprising a basin frame (1), a magnetic circuit system (2), and a vibration system (3), wherein the magnetic circuit system (2) comprises a plurality of magnetic circuit components (21), characterized in that: The vibration system (3) comprises a closed vibration membrane (36) without a central hole (311), voice coils (32) of the same number as the magnetic circuit assembly (21), a plurality of conductive copper foils (37) arranged on the closed vibration membrane (36), and a plurality of silk threads (33), each voice coil (32) respectively comprising two lead wires (321), the closed vibration membrane (36) being concavely provided with wire accommodating grooves (361) of the same number as the lead wires (321), each lead wire (321) being respectively located in a corresponding wire accommodating groove (361), the end of each lead wire (321) being respectively welded to the corresponding conductive copper foil (37), and one end of each silk thread (33) being respectively welded to the corresponding conductive copper foil (37).

2. The ultra-thin speaker according to claim 1, characterized in that: The vibration system (3) also includes a suspension edge (38), which includes a mounting portion (381) for connecting to the basin frame (1), a connecting portion (382) for connecting to the closed vibration membrane (36), and an R-ring portion (383) arranged between the mounting portion (381) and the connecting portion (382).

3. The ultra-thin speaker according to claim 2, characterized in that: The mounting portion (381) is provided with a plurality of thread eyelets (39), and the other end of each brocade thread (33) is welded to the corresponding thread eyelet (39).

4. The ultra-thin speaker according to claim 3, characterized in that: Each of the wire eyelets (39) is arranged close to a corresponding conductive copper foil (37).

5. The ultra-thin speaker according to claim 2, characterized in that: The invention also includes a plurality of mirror-image spring waves (4), wherein the mirror-image spring waves (4) include an outer support portion (41) connected to the mounting portion (381), an inner support portion (42) connected to the connecting portion (382), and a corrugated portion (43) located between the outer support portion (41) and the inner support portion (42), wherein the corrugated portion (43) is located above the R-ring portion (383).

6. The ultra-thin speaker according to claim 5, characterized in that: The corrugated portion (43) is an arched structure.

7. The ultra-thin speaker according to claim 5, characterized in that: The R-ring portion (383) is an annular groove structure, the inner ring of the R-ring portion (383) is connected to the connecting portion (382), and the outer ring of the R-ring portion (383) is connected to the mounting portion (381); the R-ring portion (383) includes two long side groove sections (3831) and two short side groove sections (3832), the groove length of the long side groove is greater than the groove length of the short side groove (3832), the two long side groove sections (3831) are respectively located at the front and rear ends of the closed vibration membrane (36), and the two short side groove sections (3832) are respectively located on both sides of the closed vibration membrane (36).

8. The ultra-thin speaker according to claim 7, characterized in that: Each of the mirror-image elastic waves (4) is located above the long side slot section (3831).

9. The ultra-thin speaker according to claim 2, characterized in that: The hanging edge (38) is made of rubber or silicone material.

10. The ultra-thin speaker according to claim 1, characterized in that: Each of the wire-accommodating grooves (361) is arranged close to a corresponding conductive copper foil (37).

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