TWM590338U - speaker - Google Patents

Abstract

A speaker includes a casing, a first diaphragm and a second diaphragm. The casing encloses a first sound chamber and a second sound chamber independent from each other. The casing has a dividing wall, and the dividing wall blocks between the first sound chamber and the second sound chamber. The first diaphragm is disposed in the first sound chamber, the second diaphragm is disposed in the second sound chamber, and the vibration frequency of the second diaphragm is higher than the vibration frequency of the first diaphragm.

Description

speaker

This new creation is about an acoustic device, and especially about a speaker.

With the continuous advancement of technology, electronic products are all developing towards the trend of lightweight miniaturization. People can use miniaturized electronic products, such as radios or walkmans, anytime, anywhere. In addition, due to the increasing popularity of personal digital products, such as common MP3 players, mobile phones, personal digital assistants (PDAs) or notebook computers, etc., are also indispensable in daily life. In addition, mobile phones that combine radio and MP3 functions have also appeared. No matter what kind of electronic products mentioned above, in order to allow users to listen to the sound information provided by electronic products without disturbing others, headphones have become necessary accessories for electronic products. In addition, the headset also provides better sound transmission for the listener, so that the listener can clearly hear and understand the sound content, unlike the transmission of sound in the air will cause unclear situations, and especially during the movement of the user, for example It will not be affected in sports, driving, intense activities or noisy environments.

In order to enable headphones to cover mid-range, high-range and low-range audio, some headsets are equipped with a high-frequency diaphragm and a mid-bass diaphragm. However, it is known that the sound chambers of the treble diaphragm and the mid-bass diaphragm communicate with each other, so that high-frequency sound waves and mid-low frequency sound waves affect each other and cannot be distinguished. Moreover, such an arrangement is susceptible to the trend of miniaturization of the device due to an increase in the number of components.

This novel creation provides a loudspeaker that makes mid-low frequency sound waves and high frequency sound waves distinct from each other.

The loudspeaker created by the novel includes a housing, a first diaphragm and a second diaphragm. The casing surrounds a first sound chamber and a second sound chamber that are independent of each other. The casing has a partition wall, which is blocked between the first sound chamber and the second sound chamber. The first diaphragm is disposed in the first sound chamber, and the second diaphragm is disposed in the second sound chamber. The vibration frequency of the second diaphragm is greater than the vibration frequency of the first diaphragm.

In an embodiment of the invention, the above-mentioned housing includes an upper shell and a lower shell. The upper shell covers the lower shell to surround the first sound chamber and the second sound chamber, and the partition wall is formed on the upper shell body.

In an embodiment of the invention, the first sound chamber surrounds the second sound chamber.

In an embodiment of the invention, the above-mentioned speaker includes a first voice coil, a second voice coil and a magnetic component, wherein the first voice coil is connected to the first diaphragm and the second voice coil is connected to the second The diaphragm and the magnetic component are disposed in the housing and correspond to the first voice coil and the second voice coil.

In an embodiment of the invention, the partition wall is connected to the magnetic component.

In an embodiment of the present invention, the above-mentioned magnetic component includes a first magnetically conductive member, a second magnetically conductive member and a magnet, the first magnetically conductive member and the second magnetically conductive member are respectively connected to two opposite sides of the magnet At the end, the first voice coil is located between the first magnetic guide and the second magnetic guide, and the second voice coil is located between the first magnetic guide and the second magnetic guide.

In an embodiment of the present invention, the above speaker includes a circuit board, wherein the circuit board is disposed on an outer surface of the housing, the magnetic component has an opening, the housing has another opening, and at least one wire is suitable for connecting to The second voice coil is connected to the circuit board through these openings.

In an embodiment of the creation of the present invention, the above-mentioned casing has a plurality of ventilation holes, and these ventilation holes respectively communicate with the first sound chamber and the second sound chamber.

In an embodiment of the present invention, the above-mentioned speaker includes a plurality of damping members, and the damping members cover the ventilation holes.

In an embodiment of the invention, the outer surface of the housing has a groove, and a microphone is suitable for being arranged in the groove.

In an embodiment of the invention, the outer surface of the casing has a groove, the groove connects to the groove, and a wire is suitable for connecting to the microphone and is arranged along the groove.

In an embodiment of the invention, the first diaphragm and the second diaphragm do not overlap each other in the axial direction of the speaker.

Based on the above, in the speaker of the present invention, the first sound chamber corresponding to the first diaphragm (for example, a mid-bass diaphragm) and the second sound chamber corresponding to the second diaphragm (for example, a treble diaphragm) are borrowed. Blocked by the partition walls of the housing, they are not connected to each other independently, so as to avoid the sound waves generated by the first diaphragm and the sound waves generated by the second diaphragm from affecting each other in the sound chamber. Therefore, the loudspeaker can produce thick and deep mid-bass, and also can produce clear high-pitched sound.

In order to make the above-mentioned features and advantages of the creation of the new model more obvious and understandable, the embodiments are specifically described below and described in detail in conjunction with the accompanying drawings.

FIG. 1 is a cross-sectional view of a speaker according to an embodiment of the present invention. Fig. 2 is an exploded view of the speaker of Fig. 1. Please refer to FIGS. 1 and 2. The speaker 100 of this embodiment is applied to headphones, for example, and includes a housing 110, a first diaphragm 120 and a second diaphragm 130. The housing 110 surrounds a first sound chamber 110a and a second sound chamber 110b which are independent of each other. The housing 110 has a partition wall 1101, which is, for example, ring-shaped and blocked between the first sound chamber 110a and the second sound chamber 110b. The first diaphragm 120 is disposed in the first sound chamber 110a, and the second diaphragm 130 is disposed in the second sound chamber 110b. For example, the first diaphragm has a larger area and uses a material with lower rigidity as a mid-bass diaphragm, and the second diaphragm 130 has a smaller area and uses a material with higher rigidity as a treble diaphragm, for example. That is, the vibration frequency of the second diaphragm 130 is greater than the vibration frequency of the first diaphragm 120.

Under this configuration, the first sound chamber 110a corresponding to the first diaphragm 120 (for example, a mid-bass diaphragm) and the second sound chamber 110b corresponding to the second diaphragm 130 (for example, a treble diaphragm) are borrowed. Blocked by the partition wall 1101 of the housing 110, the speakers 100 are independent of each other, so as to avoid the sound waves generated by the first diaphragm 120 and the sound waves generated by the second diaphragm 130 from affecting each other in the sound chamber. Therefore, the loudspeaker 100 can generate a thick and deep mid-bass sound through the first diaphragm 120, and can also produce a clear high-pitched sound through the second diaphragm 130.

In this embodiment, the housing 110 includes an upper housing 114 and a lower housing 112. The upper housing 114 covers the lower housing 112 to surround the first sound chamber 110a between the upper housing 114 and the lower housing 112 And the second sound chamber 110b. The partition wall 1101 is, for example, formed on the upper casing 114, but the creation of the novel is not limited to this. In other embodiments, the partition wall 1101 may be formed on the lower housing 112. In this embodiment, the upper casing 114 and the lower casing 112 are combined by, for example, gluing. However, the present invention does not limit the assembly method of the upper casing 114 and the lower casing 112.

In order to save configuration space, this embodiment sets the first sound chamber 110a to surround the second sound chamber 110b, so that the first diaphragm 120 in the first sound chamber 110a and the second diaphragm 130 in the second sound chamber 110b The coaxial method is roughly arranged on the same plane without overlapping each other in the axial direction of the speaker 100 without excessively increasing the thickness 100 of the speaker.

Further, the speaker 100 of this embodiment further includes a first voice coil 140, a second voice coil 150, and a magnetic component 160. The first voice coil 140 is connected to the first diaphragm 120, the second voice coil 150 is connected to the second diaphragm 130, and the magnetic component 160 is disposed in the housing 110 and corresponds to the first voice coil 140 and the second voice coil 150. The magnetic component 160 includes a first magnetic conductive member 162, a second magnetic conductive member 164 and a magnet 166. The first magnetic conductive member 162 is, for example, a magnetic conductive plate, the second magnetic conductive member 164 is, for example, magnetic steel, and the magnet 166 is, for example, a permanent magnet. The first magnetic guide 162 and the second magnetic guide 164 are respectively connected to opposite ends of the magnet 166. The second magnetic guide 164 is placed in the lower housing 112 and carries and accommodates the magnet 166 and the second magnetic guide 164 At the center of the first magnetic conducting member 162 is slightly concave to place the second diaphragm 130. A gap G1 is formed between the peripheral structure of the second magnetic conductive member 164 and the first magnetic conductive member 162, and the first voice coil 140 extends into the gap G1 and is located between the first magnetic conductive member 162 and the second magnetic conductive member 164. A gap G2 is formed between the central structure of the second magnetic conductive member 164 and the first magnetic conductive member 162, and the second voice coil 150 extends into the gap G2 and is located between the first magnetic conductive member 162 and the second magnetic conductive member 164.

When the first voice coil 140 receives the input signal to be actuated by the magnetic field provided by the magnetic component 160, the first diaphragm 120 is driven and vibrated by the first voice coil 140, thereby generating corresponding mid-low frequency sound waves. Similarly, when the second voice coil 150 receives the input signal to be actuated by the magnetic field provided by the magnetic component 160, the second diaphragm 130 is driven and vibrated by the second voice coil 150, thereby generating a corresponding high-frequency sound wave. As described above, the first voice coil 140 and the second voice coil 150 share the magnetic component 160, which can reduce the number of components of the speaker 100 and save the configuration space.

In this embodiment, the partition wall 1101 abuts on the magnetic component 160 to reliably separate the first sound chamber 110a and the second sound chamber 110b from each other. In other embodiments, the first sound chamber 110a and the second sound chamber 110b may be separated by other suitable structures and methods, and the creation of the present invention does not limit this.

The electrical connection of the speaker 100 of this embodiment will be described below. The speaker 100 includes a circuit board 170. The circuit board 170 is, for example, a terminal connection board and is disposed on the outer surface of the lower housing 112 of the housing 110. The second magnetic member 164 of the magnetic component 160 has an opening 164a, and the lower housing 112 of the housing 110 has another opening 112a for connecting the input signal to the second voice coil 150 (not shown). The second voice coil 150 is connected to the circuit board 170 through the opening 164a and the opening 112a along the axial direction of the speaker 100. On the other hand, a wire (not shown) for transmitting the input signal to the first voice coil 140 may extend from the side periphery of the housing 110 toward the circuit board 170.

In this embodiment, the lower housing 112 of the housing 110 has a plurality of ventilation holes 112b. The aforementioned openings 112a can also be regarded as ventilation holes, which communicate with the first sound chamber 110a and the second sound chamber 110b, respectively. The speaker 100 further includes damping members 180 and 190 corresponding to the ventilation holes, and the damping members 180 and 190 cover the ventilation holes.

FIG. 3 is an enlarged view of the upper case of FIG. 2. Please refer to FIG. 3. In this embodiment, the outer surface of the upper casing 114 of the housing 110 (marked in FIG. 2) has a groove 114 a and a groove 114 b connected to it. A microphone (not shown) may be disposed in the groove 114a, and a wire (not shown) is connected to the microphone and disposed along the groove 114b to be connected to the audio noise reduction processing unit outside the speaker 100. Thereby, the audio noise reduction processing unit can perform audio noise reduction according to the sound output from the speaker 100 received by the microphone, so as to further improve the sound output quality of the speaker 100

In summary, in the speaker of the present invention, the first sound chamber corresponding to the first diaphragm (such as a mid-bass diaphragm) and the second sound corresponding to the second diaphragm (such as a treble diaphragm) The chambers are independent of each other by the partition wall of the housing, so as to avoid the sound waves generated by the first diaphragm and the sound waves generated by the second diaphragm from affecting each other in the sound chamber. Therefore, the loudspeaker can produce thick and deep mid-bass, and also can produce clear high-pitched sound. In addition, the first voice coil and the second voice coil can share magnetic components, thereby reducing the number of components of the speaker and saving configuration space.

Although the new creation has been disclosed as above with examples, it is not intended to limit the creation of the new creation. Anyone with ordinary knowledge in the technical field of the subject can make some changes and without departing from the spirit and scope of the creation of the new creation. Retouching, so the scope of protection of this new creation shall be subject to the scope defined in the appended patent application.

100‧‧‧Electronic device 110‧‧‧Housing 110a‧‧‧The first sound chamber 110b‧‧‧Second Sound Room 1101‧‧‧Partition wall 112‧‧‧Lower case 112a, 164a ‧‧‧ opening 112b‧‧‧Ventilation holes 114‧‧‧Upper case 114a‧‧‧groove 114b‧‧‧groove 120‧‧‧First diaphragm 130‧‧‧Second diaphragm 140‧‧‧ first voice coil 150‧‧‧Second Voice Coil 160‧‧‧Magnetic components 162‧‧‧ First magnetic piece 164‧‧‧Second magnetic component 166‧‧‧Magnet 170‧‧‧ circuit board 180, 190‧‧‧Damper G1‧‧‧Gap G2‧‧‧Gap

FIG. 1 is a cross-sectional view of a speaker according to an embodiment of the present invention. Fig. 2 is an exploded view of the speaker of Fig. 1. FIG. 3 is an enlarged view of the upper case of FIG. 2.

100‧‧‧Electronic device

110‧‧‧Housing

110a‧‧‧The first sound chamber

110b‧‧‧Second Sound Room

1101‧‧‧Partition wall

112‧‧‧Lower case

112a, 164a ‧‧‧ opening

112b‧‧‧Ventilation holes

114‧‧‧Upper case

114a‧‧‧groove

120‧‧‧First diaphragm

130‧‧‧Second diaphragm

140‧‧‧ first voice coil

150‧‧‧Second Voice Coil

160‧‧‧Magnetic components

162‧‧‧ First magnetic piece

164‧‧‧Second magnetic component

166‧‧‧Magnet

170‧‧‧ circuit board

180, 190‧‧‧Damper

G1‧‧‧Gap

G2‧‧‧Gap

Claims (12)

A speaker, including: A casing surrounding a first sound chamber and a second sound chamber that are independent of each other, wherein the casing has a partition wall that is blocked between the first sound chamber and the second sound chamber; A first diaphragm disposed in the first sound chamber; and A second diaphragm is disposed in the second sound chamber, wherein the vibration frequency of the second diaphragm is greater than the vibration frequency of the first diaphragm. The speaker according to item 1 of the patent application scope, wherein the housing includes an upper housing and a lower housing, the upper housing covers the lower housing to surround the first sound chamber and the second sound chamber, The partition wall is formed on the upper casing. The speaker according to item 1 of the patent application scope, wherein the first sound chamber surrounds the second sound chamber. The speaker as described in item 1 of the patent application includes a first voice coil, a second voice coil and a magnetic component, wherein the first voice coil is connected to the first diaphragm and the second voice coil is connected to In the second diaphragm, the magnetic component is disposed in the housing and corresponds to the first voice coil and the second voice coil. The loudspeaker according to item 4 of the patent application scope, wherein the partition wall is connected to the magnetic component. The loudspeaker as described in item 4 of the patent application scope, wherein the magnetic component includes a first magnetic conductive member, a second magnetic conductive member and a magnet, the first magnetic conductive member and the second magnetic conductive member are respectively connected to At the opposite ends of the magnet, the first voice coil is located between the first magnetic guide and the second magnetic guide, and the second voice coil is located between the first magnetic guide and the second magnetic guide . The speaker as described in item 4 of the patent application includes a circuit board, wherein the circuit board is disposed on an outer surface of the housing, the magnetic component has an opening, the housing has another opening, and at least one wire is suitable Connected to the second voice coil and passing through the openings to connect to the circuit board. The speaker according to item 1 of the patent application scope, wherein the housing has a plurality of ventilation holes, and the ventilation holes communicate with the first sound chamber and the second sound chamber, respectively. The loudspeaker as described in item 8 of the patent application includes a plurality of damping members, and the damping members cover the ventilation holes. The loudspeaker according to item 1 of the patent application scope, wherein an outer surface of the housing has a groove, and a microphone is adapted to be disposed in the groove. The speaker according to item 10 of the patent application scope, wherein the outer surface of the housing has a groove, the groove is connected to the groove, and a wire is adapted to be connected to the microphone and arranged along the groove. The speaker according to item 1 of the patent application scope, wherein the first diaphragm and the second diaphragm do not overlap each other in the axial direction of the speaker.

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