TW202044850A - Speaker - Google Patents

Abstract

A speaker includes a frame and a sound field partition wall. The frame has ribs to define a central through hole and a plurality of side through holes. The sound field partition wall is connected to the frame to separate a high sound chamber and a low sound chamber, wherein a total area of the side through holes covered by the sound field partition wall is smaller than a total area of the side through holes uncovered by the sound field partition wall.

Description

speaker

The invention relates to a loudspeaker, in particular to a loudspeaker with a high and bass room separation.

Listening to music has become an indispensable and important part of modern people’s lives to adjust the stressful and monotonous life. Therefore, the sound quality of music displayed by the speakers of general consumer products (such as speakers, headphones, etc.) will affect consumers’ listening The experience of using the speaker while music. Moreover, as consumers have higher and higher requirements for sound quality, the requirements for speakers for general consumer products are becoming more and more important. Therefore, to improve sound quality and improve consumer experience, speaker manufacturers need to continue to invest their efforts.

Generally speaking, small speakers, such as the speakers in headphones, can only be designed with a single sounding unit, which makes it difficult to have both high and low sound experience. How to improve the output quality of high and low frequencies in small speakers is one of the directions of speaker manufacturers.

The present invention provides an innovative loudspeaker to improve the output quality of high and low frequencies.

In an embodiment of the present invention, a speaker includes a frame and a sound range partition wall. The frame has ribs to define a central through hole and a plurality of side through holes. The sound range partition wall is connected to the frame to separate the tweeter room and the bass sound room, wherein the total area of the side through holes covered by the sound range partition wall is smaller than the total area of the side through holes not covered by the sound range partition wall.

In an embodiment of the present invention, the side through holes are all elongated holes.

In an embodiment of the present invention, the length directions of the side through holes are substantially parallel.

In an embodiment of the present invention, the side through holes are arranged in a single row.

In an embodiment of the present invention, the frame is a circular frame, and the length directions of the side through holes are substantially parallel to the radial direction of the circular frame.

In an embodiment of the present invention, the frame is a circular frame, and the length directions of the side through holes are substantially perpendicular to the radial direction of the circular frame.

In an embodiment of the present invention, the central through hole is a circular hole.

In an embodiment of the present invention, the side through holes are arranged radially with the central through hole as the center.

In an embodiment of the present invention, the through holes on each side covered by the sound range partition wall are smaller than the through holes on each side not covered by the sound range partition wall.

In an embodiment of the present invention, the tweeter room includes an electromagnetic loop element accommodating area and two discontinuous sound room extension areas.

In an embodiment of the present invention, the sound range partition wall covers these The side through holes include two groups of side through holes, and each group of side through holes includes at least three elongated holes.

In an embodiment of the present invention, the side through holes that are not covered by the sound range partition wall include two groups of side through holes, and each group of side through holes includes at least three elongated holes.

In summary, the loudspeaker structure of the present invention separates the tweeter room and the bass room by the sound range partition wall, so that the high and low frequencies generated by the diaphragm have separate sound rooms and surround channels to avoid high and low frequencies. The bass mixing is matched with the shape design of the side through holes of the frame and the difference in the total area of the high and low sound chambers, thereby reducing the total harmonic distortion ratio and improving the sound quality of the high and low output.

Hereinafter, the above description will be described in detail by way of implementation, and a further explanation will be provided for the technical solution of the present invention.

In order to make the above and other objects, features, advantages and embodiments of the present invention more obvious and understandable, the description of the attached symbols is as follows:

100‧‧‧Speaker

102‧‧‧Shell

102a‧‧‧Outer back cover

102b‧‧‧Handset cover

102c‧‧‧Middle opening

H‧‧‧Tweeter

103a‧‧‧Electromagnetic circuit component housing area

103b‧‧‧Sound room extension area

104‧‧‧Sound range partition wall

104a‧‧‧Top wall

104b‧‧‧ side wall

104c‧‧‧side wall

104d‧‧‧Sound chamber through hole

104e‧‧‧Air flow regulator

L‧‧‧Bass Room

106‧‧‧Electromagnetic circuit components

106a‧‧‧Magnetic components

106b‧‧‧Sound source coil

108‧‧‧Drive circuit board

110‧‧‧ Mesh

112‧‧‧Frame

112’‧‧‧Frame

112a‧‧‧rib

112b‧‧‧Central through hole

112c‧‧‧Side through hole

112d‧‧‧Side through hole

112c’‧‧‧Side through hole

112d’‧‧‧Side through hole

114‧‧‧Vibrating membrane

116‧‧‧Front cover

116a‧‧‧Sound output hole

D1‧‧‧direction

D2‧‧‧direction

R‧‧‧Radial

In order to make the above and other objectives, features, advantages and embodiments of the present invention more comprehensible, the description of the accompanying drawings is as follows: Figure 1 shows an exploded view of a speaker according to an embodiment of the present invention; Figure 1 is an enlarged view of some components of the loudspeaker; Figure 3 is a perspective view of a sound-producing unit in a loudspeaker according to an embodiment of the present invention; Figure 4 is a sound field partition wall of the loudspeaker of Figure 2 Another perspective view; Fig. 5 is a top view of a frame according to another embodiment of the present invention; and Fig. 6 is a performance comparison diagram of total harmonic distortion of speakers of different embodiments of the present invention.

In order to make the description of the present invention more detailed and complete, reference may be made to the attached drawings and various embodiments described below. The same numbers in the drawings represent the same or similar elements. On the other hand, well-known elements and steps are not described in the embodiments to avoid unnecessary limitation of the present invention.

In the implementation mode and the scope of the patent application, unless the article is specifically limited in the context, "a" and "the" can generally refer to a single or more than one.

Please refer to FIG. 1, which shows an exploded view of a speaker according to an embodiment of the present invention. The loudspeaker 100 includes a sound range partition wall 104, a frame 112, a diaphragm 114, a front cover 116, an electromagnetic circuit element 106, a housing 102 and other elements.

The electromagnetic circuit element 106 includes a magnetic component 106a and a sound source coil 106b composed of multiple parts. The sound source coil 106b is electrically connected to the driving circuit board 108, and is driven to drive the vibrating membrane 114 to vibrate to generate sound.

When the speakers are combined, the housing 102 composed of the outer back cover 102a and the earpiece cover 102b is used to cover the rest of the components inside. The front cover 116 is assembled in the middle opening 102c of the earpiece cover 102b, and has a plurality of There are two sound output holes 116a for sound output.

Please refer to Figures 1 to 4 at the same time. Figure 2 shows a perspective view of the sound range partition wall 104 and frame 112 of the speaker, Figure 3 shows a perspective view of the sound emitting unit in the speaker, and Figure 4 shows the sound range of the speaker in Figure 2 Another perspective view of the partition wall.

The sound range partition wall 104 is used to be assembled on the frame 112 to separate a high sound room H and a low sound room L. The sound range partition wall 104 is composed of a top wall 104a and a plurality of side walls. The side wall is further divided into a flat side wall 104c and an arc-shaped side wall 104b.

The frame 112 has ribs 112a to define a central through hole 112b and a plurality of side through holes (112c, 112d). When the sound range partition wall 104 is combined with the frame 112, the sound range partition wall 104 covers the central through hole 112b and the plurality of side through holes 112c of the frame 112. Therefore, the through hole 112c covered by the sound range partition wall 104 is located in the treble room H, and the through hole 112d not covered by the sound range partition wall 104 is located in the bass room L.

The multiple meshes 110 cover the multiple side through holes 112c and 112d of the frame 112; or the multiple meshes 110 only cover the multiple side through holes 112d not covered by the sound range partition wall 104.

In this embodiment, the total area of the side through holes 112c covered by the sound range partition wall 104 is smaller than the total area of the side through holes 112d not covered by the sound range partition wall 104.

In this embodiment, the side through holes (112c, 112d) are all elongated holes, and the longitudinal direction D1 of the elongated holes 112c is approximately parallel; or the longitudinal direction of the elongated holes 112d is approximately Parallel, but not limited to this.

In this embodiment, the side through holes 112c or the side through holes 112d are all arranged in a single row, but it is not limited to this.

In this embodiment, the frame 112 is a circular frame, and the length directions of the side through holes (112c, 112d) are substantially parallel to the radial direction of the circular frame, but not limited to this.

In this embodiment, the central through hole 112b of the frame 112 is a circular hole, and the side through holes (112c, 112d) are arranged radially with the central through hole 112b as the center, but not limited to this.

In this embodiment, the through holes 112c on each side covered by the sound range partition wall 104 are smaller than the through holes 112d on each side not covered by the sound range partition wall 104, but it is not limited to this.

In this embodiment, the tweeter room H surrounded by the sound range partition wall 104 includes an electromagnetic loop element accommodating area 103a and a plurality of discontinuous sound room extension areas 103b. The electromagnetic circuit element accommodating area 103a is used for accommodating the aforementioned electromagnetic circuit element 106, so it is named with this function.

In the embodiment of Fig. 3, the tweeter room H defined by the sound range partition wall 104 includes two discontinuous sound room extension areas 103b, and the electromagnetic circuit element accommodating area 103a is a circular area with 2 discontinuous areas The extension area 103b of the sound chamber is a fan-shaped area, but it is not limited to this.

The multiple discontinuous sound chamber extension areas 103b of the tweeter room H and the electromagnetic circuit element accommodating area 103a are in spatial communication with each other. For example, fluid can flow through the electromagnetic circuit element accommodating area 103a to circulate in a plurality of discontinuous sounds. Between the room extension area 103b.

When the speakers are combined, the electromagnetic circuit element of the tweeter H The accommodating area 103a is used to align with or cover the central through hole 112b of the frame 112. The discontinuous sound chamber extension 103b of the tweeter room H covers part of the side through holes 112c, and exposes the remaining side through holes. 112d.

Each side through hole 112d is located in the gap area formed by the electromagnetic circuit element accommodating area 103a and the two adjacent sound chamber extension areas 103b, and is covered on the side through hole 112d by the mesh 110.

In this embodiment, each mesh 110 can cover a plurality of side through holes (112c or 112d), but it is not limited to this.

In this embodiment, the sound field partition wall 104 has at least one sound chamber through hole 104d on the side walls (104b, 104c) of the sound chamber extension area 103b, and has an airflow adjusting member 104e (refer to Figure 1) covering the sound chamber through On the hole 104d (for example, the air flow adjusting member 104e is pasted on the side wall to cover the sound chamber through hole 104d). The air flow regulating member 104e and the aforementioned mesh 110 are both porous and ventilated elements, which can make the air flow evenly distributed between the high and bass chambers and maintain the same air pressure in the high and bass chambers.

The sound range partition wall 104 is used to separate a high sound room H and a low sound room L. The treble room H is the space enclosed by the sound range partition wall 104 and the front cover 116, and the woofer room L is the sound range partition wall 104, the mesh 110 and the housing of the speaker (for example, the back cover 102a and the earpiece outside of Figure 1) The space enclosed by the housing 102) formed by the cover 102b. In practice, the space enclosed by the bass sound room L is generally larger than the space enclosed by the high sound room H, but not limited to this. The treble room H and the bass room L are not completely blocked by the sound range partition wall 104. As discussed above, the sound range partition wall 104 has a sound chamber through hole 104d and an airflow adjusting member 104e, etc., so that the airflow is evenly distributed in the high Bass room between.

Please refer to FIG. 5, which shows a top view of a frame according to another embodiment of the present invention. The frame 112' is different from the aforementioned frame 112 in the relationship between the length direction of the side through hole and the radial direction of the frame. In this embodiment, the length direction of the side through hole is substantially perpendicular to the radial direction R of the circular frame 112', for example, the length direction D2 of the side through hole 112c' is substantially perpendicular to the radial direction R of the circular frame 112'. The length direction of the side through hole 112d' is also substantially perpendicular to the radial direction R of the circular frame 112'. Similar to the design of the frame 112, the total area of the side through holes 112c' of the frame 112' is smaller than the total area of the side through holes 112d'.

Please refer to Fig. 6, which shows a comparison diagram of the total harmonic distortion performance of the speakers of different embodiments of the present invention. The loudspeaker embodiments compared in this figure respectively include three types of frames A, B, and C, and the diagrams are respectively shown in the figure. The total area of the through holes (4x2 through holes) in the tweeter chamber of the frame of aspect A is smaller than the total area of the through holes (6x2 through holes) in the bass sound chamber. The total area of the through holes in the tweeter chamber (3x2 smaller through holes) of the frame of aspect B is smaller than the total area of the through holes in the bass sound chamber (3x2 larger through holes). The total area of the through holes in the tweeter chamber of the frame of aspect C is equal to the total area of the through holes in the bass chamber. Referring to the total harmonic distortion (THD) ratio curve of the speaker corresponding to the patterns A, B, and C, it can be seen that between the frequency of 30Hz and 200Hz, in terms of the total harmonic distortion ratio of the speaker output sound effect, the pattern The speaker of A is smaller than the speaker of aspect B, and the speaker of aspect B is smaller than the speaker of aspect C. Specifically, at a frequency of 100 Hz, the total harmonic distortion ratio of aspect A is 4.17%, the total harmonic distortion ratio of aspect B is 5.60%, and the total harmonic distortion ratio of aspect C is 6.53%. On frequency When the frequency is 200 Hz, the total harmonic distortion ratio of aspect A is 0.66%, the total harmonic distortion ratio of aspect B is 0.87%, and the total harmonic distortion ratio of aspect C is 1.43%. The lower the total harmonic distortion ratio means that the speaker can output more realistic sound effects. In addition, the elongated side through holes on the frames of the aspects A and B also help to reduce the total harmonic distortion ratio.

In summary, the loudspeaker structure of the present invention separates the tweeter room and the bass room by the sound range partition wall, so that the high and low frequencies generated by the diaphragm have separate sound rooms and surround channels to avoid high and low frequencies. The bass mixing is matched with the shape design of the side through holes of the frame and the difference in the total area of the high and low sound chambers, thereby reducing the total harmonic distortion ratio and improving the sound quality of the high and low output.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone familiar with the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be subject to those defined in the attached patent scope.

H‧‧‧Tweeter

104‧‧‧Sound range partition wall

112‧‧‧Frame

112a‧‧‧rib

112b‧‧‧Central through hole

112c‧‧‧Side through hole

112d‧‧‧Side through hole

D1‧‧‧direction

Claims (12)

A speaker includes: a frame with ribs to define a central through hole and a plurality of side through holes; and a sound range partition wall connected to the frame to separate a tweeter room and a bass sound room, wherein the sound range partition The total area of the side through holes covered by the wall is smaller than the total area of the side through holes not covered by the sound range partition wall. As for the loudspeaker described in item 1 of the scope of patent application, the side through holes are all elongated holes. For the loudspeaker described in item 2 of the scope of patent application, the length directions of the side through holes are substantially parallel. For the speaker described in item 2 of the scope of patent application, the side through holes are arranged in a single row. As for the loudspeaker described in item 2 of the patent application, the frame is a circular frame, and the length directions of the side through holes are substantially parallel to the radial direction of the circular frame. As described in the second item of the patent application, the frame is a circular frame, and the length directions of the side through holes are substantially perpendicular to the radial direction of the circular frame. In the loudspeaker described in item 1 of the scope of patent application, the central through hole is a circular hole. In the loudspeaker described in item 1 of the scope of patent application, the side through holes are radially arranged with the central through hole as the center. In the loudspeaker described in item 1 of the scope of patent application, each of the side through holes covered by the sound range partition wall is smaller than each of the side through holes not covered by the sound range partition wall. The loudspeaker described in item 1 of the scope of patent application, wherein the tweeter room includes an electromagnetic loop element accommodating area and two discontinuous sound room extension areas. In the loudspeaker described in claim 1, wherein the side through holes covered by the sound range partition wall include two groups of side through holes, and each group of side through holes includes at least three elongated holes. In the loudspeaker described in claim 1, wherein the side through holes not covered by the sound range partition wall include two groups of side through holes, and each group of side through holes includes at least three elongated holes.

Images