CN215734824U - Hide coaxial loudspeaker of solder joint - Google Patents

Abstract

The utility model provides a welding spot hidden coaxial loudspeaker which comprises a tweeter, a protecting cover, a woofer and a circuit board, wherein the circuit board is fixed at the lower end of the woofer, a first conductive terminal is arranged on the protecting cover and comprises a first welding plate and a first supporting leg, the protecting cover comprises an annular shell and an upper cover, a through hole is formed in the middle of the upper cover, the tweeter comprises a first support, a second conductive terminal is arranged on the first support and comprises a second welding plate, a conductive sheet, a third welding plate and a second supporting leg, one end of the second supporting leg is welded with one end of the first welding plate, and the welding position of the second supporting leg and the first welding plate is located on the inner side of the through hole. According to the coaxial loudspeaker, the welding position of the second support leg and the first welding plate is arranged on the inner side of the through hole in the upper cover, and the soldering tin is hidden in the coaxial loudspeaker after welding, so that the phenomenon of welding failure can be avoided, and the overall impression is not influenced.

Description

Hide coaxial loudspeaker of solder joint

Technical Field

The utility model relates to the field of loudspeakers, in particular to a coaxial loudspeaker with hidden welding spots.

Background

The coaxial loudspeaker is a coaxial loudspeaker, namely a high pitch loudspeaker is arranged on the same axis besides a medium and low pitch loudspeaker and is respectively responsible for replaying high pitch and medium and low pitch, and the coaxial loudspeaker has the advantage that the bandwidth of a single loudspeaker can be greatly improved.

The utility model discloses a hide coaxial loudspeaker of solder joint as application number 202011398885.7, including woofer, tweeter is located woofer upside and with woofer is on same axle center, woofer includes first protecting cover, circuit board, be equipped with first conductive module on the first protecting cover, first conductive module lower extreme with the circuit board is connected, tweeter includes first support, first voice coil loudspeaker, be equipped with second conductive module on the first support, the wiring of first voice coil loudspeaker voice coil with second conductive module upper end is connected, first conductive module upper end with second conductive module lower extreme is connected. According to the coaxial loudspeaker, the high pitch loudspeaker and the low pitch loudspeaker are arranged on the same axis, the high pitch loudspeaker and the low pitch loudspeaker respectively replay respective frequency bands, the bandwidth of the coaxial loudspeaker can be greatly improved, the high pitch loudspeaker and the low pitch loudspeaker are connected in a welding mode, and mass production can be realized for small-sized equipment. According to the coaxial loudspeaker, the joint of the first conductive module and the second conductive module is exposed to the outside, so that after welding at the position, a welding spot is exposed to the outside, on one hand, the desoldering phenomenon is easily caused, and on the other hand, the appearance of the coaxial loudspeaker is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides the coaxial loudspeaker with the hidden welding spot, the welding position of the second support leg and the first welding plate is arranged on the inner side of the through hole of the upper cover, and the soldering tin is hidden in the coaxial loudspeaker after welding, so that the phenomenon of welding failure can be avoided, and the integral impression is not influenced.

In order to achieve the purpose, the utility model is solved by the following technical scheme:

the utility model provides a hide coaxial loudspeaker of solder joint, includes loudspeaker, protecting cover, woofer, circuit board, the circuit board is fixed the woofer lower extreme, loudspeaker is located loudspeaker upside and with loudspeaker is on same axle center, its characterized in that, be equipped with first conductive terminal on the protecting cover, first conductive terminal includes first welding plate, first stabilizer blade, the protecting cover includes cyclic annular shell, fixes the upper cover of cyclic annular shell upper end, the upper cover middle part has a through-hole, first welding plate is located the upper cover lower extreme, first stabilizer blade lower extreme extends to cyclic annular shell downside, loudspeaker includes first support, first support bottom is fixed the through-hole is inboard, be equipped with second conductive terminal on the first support, second conductive terminal includes second welding plate, conducting strip, The welding structure comprises a third welding plate and a second supporting leg, wherein one end of the second supporting leg is welded with one end of the first welding plate, and the welding position of the second supporting leg and the first welding plate is located on the inner side of the through hole.

Specifically, a plurality of sound holes are formed in the protecting cover.

Specifically, the lower end of the first support leg is welded with the circuit board, a bonding pad is arranged on the circuit board, and a metal patch is arranged on the bonding pad.

Specifically, loudspeaker is still including fixing first U iron of first support inboard, be located first magnet, the cover that first U iron is inboard are established first voice coil loudspeaker voice coil, connection in the first magnet outside weld the first diaphragm of first voice coil loudspeaker voice coil upper end, the lead wire of first voice coil loudspeaker voice coil with the second welds the board welding.

Specifically, woofer still includes the second support, fixes the inboard second U iron of second support, be located the inboard second magnet of second U iron, cover are established the second voice coil loudspeaker voice coil in the second magnet outside, connect the second diaphragm of second voice coil loudspeaker voice coil upper end, be equipped with third conductive terminal on the second support, the lead wire of second voice coil loudspeaker voice coil with third conductive terminal welding.

The utility model has the beneficial effects that:

1. according to the coaxial loudspeaker, the high pitch loudspeaker and the low pitch loudspeaker are arranged on the same axis, the high pitch loudspeaker and the low pitch loudspeaker respectively replay respective frequency bands, the bandwidth of the coaxial loudspeaker can be greatly improved, the high pitch loudspeaker and the low pitch loudspeaker are connected in a welding mode, and mass production can be realized for small-sized equipment;

2. the welding position of the second support leg and the first welding plate is arranged inside the through hole in the upper cover, and the soldering tin is hidden inside the coaxial horn after welding, so that the phenomenon of desoldering can be avoided, and the overall impression is not influenced.

Drawings

Fig. 1 is a first perspective view of a coaxial speaker with hidden welding spots according to the present invention.

Fig. 2 is a second perspective view of the coaxial speaker with hidden solder joint according to the present invention.

Fig. 3 is a top view of a coaxial horn of the present invention with hidden solder joints.

Fig. 4 is a cross-sectional view taken along the plane a-a in fig. 3.

Fig. 5 is an exploded view of a coaxial horn of the present invention with hidden solder joints.

Fig. 6 is a schematic structural view of the first conductive terminal and the second conductive terminal.

Fig. 7 is a schematic structural view of the second bracket and the third conductive terminal.

Fig. 8 is a schematic structural view of the third conductive terminal.

The reference signs are: the loudspeaker comprises a tweeter 1, a first support 11, a first U-shaped iron 12, a first magnet 13, a first voice coil 14, a first diaphragm 15, a protective cover 2, an annular shell 21, an upper cover 22, a through hole 221, a sound hole 23, a woofer 3, a second support 31, a second U-shaped iron 32, a second magnet 33, a second voice coil 34, a second diaphragm 35, a circuit board 4, a first conductive terminal 5, a first welding plate 51, a first support leg 52, a second conductive terminal 6, a second welding plate 61, a conductive plate 62, a third welding plate 63, a second support leg 64, a metal patch 7 and a third conductive terminal 8.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the embodiments of the present invention are not limited thereto.

Referring to FIGS. 1-8:

a coaxial loudspeaker hiding welding spots comprises a tweeter 1, a protective cover 2, a woofer 3 and a circuit board 4, wherein the circuit board 4 is fixed at the lower end of the woofer 3, the tweeter 1 is positioned at the upper side of the woofer 3 and is coaxial with the woofer 3, and the coaxial loudspeaker is characterized in that a first conductive terminal 5 is arranged on the protective cover 2, the first conductive terminal 5 comprises a first welding plate 51 and a first support leg 52, the protective cover 2 comprises an annular shell 21 and an upper cover 22 fixed at the upper end of the annular shell 21, a through hole 221 is formed in the middle of the upper cover 22, the first welding plate 51 is positioned at the lower end of the upper cover 22, the lower end of the first support leg 52 extends to the lower side of the annular shell 21, the tweeter 1 comprises a first support 11, the bottom of the first support 11 is fixed at the inner side of the through hole 221, a second conductive terminal 6 is arranged on the first support 11, the second conductive terminal 6 comprises a second welding plate 61, a second welding plate 62, a third welding plate 63, The second supporting leg 64, one end of the second supporting leg 64 is welded with one end of the first welding plate 51, the welding position of the second supporting leg 64 and the first welding plate 51 is located inside the through hole 221, and after the second supporting leg 64 and the first welding plate 51 are welded, the soldering tin is located inside the through hole 221, so that the appearance of the coaxial horn is not affected.

Preferably, the protective cover 2 is provided with a plurality of sound holes 23, and bass emitted by the woofer 3 passes through the sound holes 23 and is transmitted to the upper side.

Preferably, the lower end of the first support leg 52 is welded to the circuit board 4, and a pad is arranged on the circuit board 4, so that the welding efficiency is improved in order to facilitate the subsequent automatic welding process, and the pad is provided with a metal patch 7 with a larger thickness.

Preferably, the tweeter 1 further includes a first U-iron 12 fixed inside the first bracket 11, a first magnet 13 located inside the first U-iron 12, a first voice coil 14 sleeved outside the first magnet 13, and a first diaphragm 15 connected to an upper end of the first voice coil 14, wherein a lead of the first voice coil 14 is welded to the second soldering plate 61, the first voice coil 14 is bonded to the first diaphragm 15 through glue, when the first voice coil 14 is supplied with audio current, the first voice coil 14 generates an alternating magnetic field under the action of current, the first magnet 13 also generates a constant magnetic field with unchanged magnitude and direction, since the magnitude and direction of the magnetic field generated by the first voice coil 14 are constantly changed along with the change of the audio current, the interaction between the two magnetic fields causes the first voice coil 14 to move perpendicular to the direction of current in the first voice coil 14, and since the first voice coil 14 is connected to the first diaphragm 15, the first diaphragm 15 is driven to vibrate, the vibration of the air caused by the first diaphragm 15 emits a high frequency sound signal.

Preferably, the woofer 3 further includes a second bracket 31, a second U-iron 32 fixed inside the second bracket 31, a second magnet 33 located inside the second U-iron 32, a second voice coil 34 sleeved outside the second magnet 33, and a second diaphragm 35 connected to an upper end of the second voice coil 34, the second bracket 31 is provided with a third conductive terminal 8, a lead of the second voice coil 34 is welded to the third conductive terminal 8, the second voice coil 34 is bonded to the second diaphragm 35 through glue, when the second voice coil 34 is supplied with audio current, the second voice coil 34 generates an alternating magnetic field under the action of current, the second magnet 33 also generates a constant magnetic field with unchanged magnitude and direction, because the magnitude and direction of the magnetic field generated by the second voice coil 34 are constantly changed along with the change of the audio current, so that the interaction of the two magnetic fields causes the second voice coil 34 to move perpendicular to the direction of current in the second voice coil 34, since the second voice coil 34 is connected to the second diaphragm 35, the second diaphragm 35 is driven to vibrate, and the second diaphragm 35 causes air vibration to generate a low-frequency sound signal.

The above examples only show 1 embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (5)

1. The utility model provides a hide coaxial loudspeaker of solder joint, includes tweeter (1), protecting cover (2), woofer (3), circuit board (4) are fixed woofer (3) lower extreme, tweeter (1) is located woofer (3) upside and with woofer (3) are on same axle center, its characterized in that, be equipped with first conductive terminal (5) on protecting cover (2), first conductive terminal (5) include first welding plate (51), first stabilizer blade (52), protecting cover (2) include cyclic annular shell (21), fix upper cover (22) of cyclic annular shell (21) upper end, upper cover (22) middle part has a through-hole (221), first welding plate (51) are located upper cover (22) lower extreme, first stabilizer blade (52) lower extreme extends to cyclic annular shell (21) downside, loudspeaker (1) includes first support (11), first support (11) bottom is fixed through-hole (221) are inboard, be equipped with second conductive terminal (6) on first support (11), second conductive terminal (6) weld board (61), conducting strip (62), third including the second and weld board (63), second stabilizer blade (64) one end with first welding board (51) one end welding, second stabilizer blade (64) with the welding department of first welding board (51) is located through-hole (221) are inboard.

2. A solder joint hiding coaxial horn according to claim 1 characterized in that said cover (2) is provided with a plurality of sound holes (23).

3. The coaxial horn of claim 1, wherein the lower end of the first leg (52) is soldered to the circuit board (4), and the circuit board (4) is provided with a bonding pad on which a metal patch (7) is disposed.

4. The coaxial loudspeaker of hidden solder joint of claim 1, characterized in that the tweeter (1) further comprises a first U-iron (12) fixed inside the first bracket (11), a first magnet (13) located inside the first U-iron (12), a first voice coil (14) sleeved outside the first magnet (13), and a first diaphragm (15) connected to the upper end of the first voice coil (14), and the lead of the first voice coil (14) is welded to the second solder plate (61).

5. The coaxial loudspeaker of hidden solder joint of claim 1, characterized in that, woofer (3) still includes second support (31), fix in second U iron (32) of second support (31) inboard, be located second magnet (33) of second U iron (32) inboard, cover establish second voice coil (34) in the second magnet (33) outside, connect in second diaphragm (35) of second voice coil (34) upper end, be equipped with third conductive terminal (8) on second support (31), the lead wire of second voice coil (34) with third conductive terminal (8) welding.

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