TWI577195B - Speaker and electronic device having the speaker - Google Patents

Description

Speaker and electronic device provided with the speaker

The present invention relates to a speaker, and more particularly to a speaker having a cover member for outputting sounds from a speaker unit in different directions.

In recent years, with the rapid advancement of technology, the design of electronic devices such as tablet computers, smart phones, and notebook computers has gradually developed toward light, thin, short, and small, so that users can conveniently carry them and enjoy electronic devices at any time. The features provided by the device. Since the current electronic devices are designed with a thin, light and short spindle, the speakers matched with the above-mentioned electronic devices are required to maintain the design consistency, and the original volume is also required to be greatly reduced, so that the speakers installed in the speakers are limited. In a smaller size, the directionality of the sound played by the horn is too high, so that users in different positions can listen to the sound played by the speaker matched with such an electronic device, and only the user located directly in front of the speaker can Listening to the sound clearly, so there is a need for improvement.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a speaker having a cover member for outputting sound from a speaker unit from different directions.

The invention provides a speaker comprising a body and a cover. The body includes a horn unit and a sound guide tube. The sound tube is located on one side of the speaker unit. The covering member is located above the body to cover the sound guiding tube and a part of the speaker unit, so that the speaker unit has a shielded portion and an unshielded portion, wherein the sound of the shielded portion is output from the first direction through the sound guiding tube, and the unmasked portion The sound is output by the second direction.

The invention further provides an electronic device comprising a device body and at least one speaker. The speaker is disposed on the device body and includes a body and a cover. The body includes a horn unit and a sound guide tube. The sound tube is located on one side of the speaker unit. The covering member is located above the body to cover the sound guiding tube and a part of the speaker unit, so that the speaker unit has a shielded portion and an unshielded portion, wherein the sound of the shielded portion is output from the first direction through the sound guiding tube, and the unmasked portion The sound is output by the second direction.

With the design of the present invention, the directivity of the sound outputted by the speaker of the present invention is increased, and the speaker output sound of the present invention is more hierarchical overall.

In order to enable the reviewing committee to better understand the technical contents of the present invention, the preferred embodiments are described below. Hereinafter, please refer to FIG. 1 to FIG. 4 for a schematic diagram of the explosion of the speaker of the present invention, a schematic diagram of the operating state of the speaker, and a schematic diagram of the state of use of the electronic device of the frequency response curve of the speaker.

As shown in FIGS. 1 and 2, in the present embodiment, the speaker 1 of the present invention is a microspeaker, and the speaker 1 includes a body 10 and a covering member 20, wherein the covering member 20 is located above the body 10. The body 10 includes a speaker unit 12, a sound guiding tube 13 and a sound hole 15. The speaker unit 12 of the embodiment is a flat type speaker unit. When the speaker unit 12 is in operation, the sound generated by the speaker unit 12 is mostly single. The vibration, that is, the sound is output only in the direction perpendicular to the sound exit surface, the sound emitting surface of the horn unit 12 is rectangular, and the diaphragm of the horn unit 12 is a plastic film.

In the present embodiment, the sound guiding tubes 13 are singular and disposed on the short side of the horn unit 12, and the sound emitting holes 15 are located at one end of the sound guiding tube 13 away from the horn unit 12. As shown in FIG. 1 and FIG. 2, the covering member 20 covers the sound guiding tube 13 and a part of the horn unit 12, so that the horn unit 12 has the shielded portion 121 and the unshielded portion 122, wherein the covering member 20 and the sound guiding tube 13 are provided. A Helmholtz resonance cavity is formed, and the sound of the shielded portion 121 is output from the first direction D1 via the sound guide tube 13 and the sound emission hole 15, and the sound of the unmasked portion 122 is outputted from the second direction D2. By the design of the cover member 20, when the horn unit 12 operates, the sound waves generated by the vibration of the horn unit 12 will have two different directions of expansion, and the sound waves generated by the unmasked portion 122 will still follow the originally designed sound direction (first). In the two directions D2) output, the sound waves generated by the masking portion 121 are outputted from the sound hole 15 in the first direction D1 via the sound guiding tube 13 by the Helmholtz resonance principle, thereby creating a new acoustic wave motion of the speaker 1. In the direction of the speaker 1, in addition to the original sounding direction (the second direction D2), the output in the first direction D1 is increased, so that the sounding direction of the speaker 1 is increased, and the sound of the speaker 1 is more layered as a whole.

As shown in FIG. 2, the horn unit 12 has a rectangular shape, and the sound generated by the horn unit 12 has only one-way vibration. According to a preferred embodiment of the present invention, in order to ensure the expansion of the output sound of the speaker 1, the cover member 20 needs to be The horn unit 12 is covered along the long axis of the parallel rectangle to prevent the sound waves emitted by the horn unit 12 from interfering with each other and affecting the sound quality. In addition, it should be noted that the area of the shielded portion 121 is 10% to 60% of the original sound emitting surface area of the horn unit 12, but to ensure the treble quality of the horn unit 12 and the forward output volume, the shaded portion 121 The area is 1/2 to 1/3 of the original sound surface area of the horn unit 12. Further, in the present embodiment, the first direction D1 is perpendicular to the original sound emitting surface direction (second direction D2) of the horn unit 12.

3 shows the effect of the shaded portion 121 on the sound plane of the horn unit 12 on the audio of the speaker 1 of the present invention. As shown in FIG. 3, the ratio at which the horn unit 12 is shielded does expand the low frequency of the speaker 1. As can be seen from Fig. 3, when the ratio of the horn unit 12 is shielded between 40% and 60% (section a), the speaker 1 output audio has a better high frequency output sound quality at 7000 Hz. As shown in FIG. 4, the speaker 1 of the present invention can be disposed in an electronic device 90 such as a notebook computer, a tablet computer or a display, and the number of speakers 1 can be singular or plural, and further, by the cover member 20 The design allows the speaker 1 to be sounded from the front and the side of the user, increasing the layering of the speaker 1 output sound.

It should be noted that the above is only an embodiment, and is not limited to the embodiment. For example, those who do not depart from the basic structure of the present invention should be bound by the scope of the patent, and the scope of the patent application shall prevail.

Speaker 1 body 10 horn unit 12 sound tube 13 shaded portion 121 unshielded portion 122 sound hole 15 cover member 20 electronic device 90 first direction D1 second direction D2 segment a length L width W electronic device 90

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic exploded view of a loudspeaker of the present invention. Figure 2 is a schematic view showing the operational state of the speaker of the present invention. Figure 3 is a graph showing the frequency response of the speaker of the present invention. Fig. 4 is a view showing the state of use of the electronic device of the present invention.

1‧‧‧Speaker

10‧‧‧ Ontology

12‧‧‧ horn monomer

15‧‧‧ sound hole

121‧‧‧shaded part

122‧‧‧Unshielded parts

13‧‧‧Guide tube

20‧‧‧ Covering parts

L‧‧‧ length

W‧‧‧Width

D1‧‧‧ first direction

D2‧‧‧ second direction

Claims (8)

A speaker includes: a body comprising a speaker unit and a sound guiding tube, wherein the sound guiding tube is disposed on one side of the speaker unit, the speaker unit has a rectangular shape; and a covering member is located on the body Upper portion of the speaker unit and a portion of the speaker unit, the speaker unit has a shielded portion and an unshielded portion, wherein the cover member covers the speaker unit in a direction parallel to a long axis of the rectangle. The sound of the shielded portion is output through a first direction of the sound guide tube, and the sound of the unmasked portion is outputted by a second direction. The speaker according to claim 1, wherein the shielded portion accounts for 10% to 60% of the sound area of the speaker unit. The speaker according to claim 1 or 2, wherein the body comprises a sound hole located at one end of the sound guiding tube away from the speaker, so that the sound of the shielded portion passes through the sound tube The first sound hole is output along the first direction. The speaker of claim 3, wherein the first direction is perpendicular to the second direction. An electronic device comprising: a device body; at least one speaker disposed on the device body, the at least one speaker comprising: a body comprising a speaker unit and a sound tube, wherein the sound tube is located in the speaker unit On one side, the speaker unit has a rectangular shape; and a cover member is disposed above the upper surface to cover the sound guiding tube and a portion of the speaker unit, so that the speaker unit has a shielded portion and an uncovered portion a shielding portion, wherein the covering member covers the speaker unit in a direction parallel to a long axis of the rectangle, and the sound of the shielded portion is outputted by the first side through the sound guiding tube, and the sound of the unmasked portion is controlled by a second direction Output. The electronic device of claim 5, wherein the shielded portion accounts for 10% to 60% of the sound area of the speaker unit. The electronic device of claim 5 or 6, wherein the body comprises a sound hole located at an end of the sound guiding tube, so that the sound of the shielded portion passes through the sound guiding tube along the first The direction is output by the first sound hole. The electronic device of claim 7, wherein the first direction is perpendicular to the second direction.