TWI674006B - Speaker and system thereof - Google Patents

Abstract

A speaker with crossover effect is provided with a pair of speaker devices electrically connected to each other. Each speaker device is provided with a speaker, the speaker is provided with a baffle, a speaker hole is penetrated through the baffle, and a full frequency is combined in the speaker hole. A horn unit is combined with a reflector that surrounds the horn hole and extends obliquely forward on the surface of the baffle, and forms a middle and high pitch hole on the front side of the reflector body; the invention uses the middle and high pitch hole of the reflector to set Position, separating the middle and high frequency sound waves emitted from each speaker unit from the low frequency sound waves, making the sound waves emitted by each speaker device clearer and more recognizable, and improving the sound quality of the playback sound.

Description

Speaker with frequency division effect and speaker device

The present invention relates to the structure of a speaker, and in particular, to a speaker with a frequency division effect and a speaker device thereof.

The existing speakers mainly include two speaker devices. A speaker unit is embedded in front of the speakers of each speaker device. When the two speaker devices are connected to an amplifier or turntable, each speaker unit can be driven to emit full-frequency sound waves, providing users with The effect of listening to music.

The horn unit of the above horn device is a full-range horn unit. The sound waves that can be played by the full-range horn unit include high-frequency, intermediate-frequency, and low-frequency sound waves. However, since the full-frequency sound waves are directed by the horn unit. For the listener, it is easy for the listener to mix the middle and high frequency sound waves with the low frequency sound waves. The high and low frequencies cannot be clearly discerned, which makes the speaker play poorly. However, if an expensive speaker with better sound separation is used It can avoid the situation that the full-frequency sound waves are mixed by itself, and there is a problem that the manufacturing cost of the horn device is increased.

Because the sound waves played by the existing horn devices lack a frequency division method, the sounds played are not clear and the sound quality is not good. For this reason, the invention separates the middle and high frequency sound waves played by the speaker through the reflector, which can improve the sound quality played by the speaker.

In order to achieve the above object, the present invention provides a speaker with a frequency division effect, comprising a pair of speaker devices and an amplifier module electrically connecting the two speaker devices, wherein each speaker device is provided with a speaker, and the speaker is provided with a baffle. A horn hole is penetrated through the baffle, a full-frequency horn unit is combined with the horn hole, and a reflector is combined on the surface of the baffle. The reflector is provided with a body, which is a pipe body and is surrounded by a bottom. Around the horn hole, the body extends obliquely forward from the periphery of the horn hole, and a middle and treble hole is opened at the front side of the body.

Further, in the present invention, a bass port is formed on the rear side of the bottom of the body. The top edge of the bass port covers the horn unit rearward, and a throat is combined at the front edge of the horn hole. The throat is vertical. The arc-shaped sheet body and the top end of the horn hole protrude from the horn hole, and the rear edge of the horn hole is expanded outward to form an outwardly expanding slope.

Further, the present invention incorporates a bass reflection element on the baffle, the bass reflection element is located behind the reflector, and the bass reflection element includes two arc-shaped reflection plates connected left and right.

Further, the present invention combines two spaced-apart sound guide sheets on the left and right sides of the body, and the two sound guide sheets divide the space in the body into three long holes.

Further, in the present invention, an inverting hole is provided in the speaker, and an inverting tube is combined with the inverting hole. The inverting tube is a bamboo tube body and the inner end extends into the speaker; around the speaker More than one passive radiator is embedded, and the inner end of each passive radiator is combined with a sound collecting basin.

Further, in the present invention, a chord horn hole is penetrated through the baffle, and the chord horn hole is located behind the horn hole. Combined with a chorus reflection board, the chorus reflection board is located behind the chorus speaker hole.

Further, the synthesizing reflection plate of the present invention includes several layers of curved reflecting surfaces with increasing diameters from bottom to top.

Furthermore, the present invention is provided with a subwoofer device. The subwoofer device is provided with a subwoofer. The subwoofer is provided with a second baffle. A subwoofer hole is provided in the second baffle. The woofer hole is combined with a woofer unit, and the position of the woofer unit is combined with a bass reflector on the second baffle. The bass reflector is combined with a bracket group on the surface around the woofer hole. A bearing plate is combined between the bracket groups, and a conical diffusion plate is combined on the inner surface of the bearing plate. The tip of the conical diffusion plate faces the center of the woofer unit. In the subwoofer, the amplifier module is electrically connected to the woofer unit.

In order to achieve the above object, the present invention provides a speaker device, which is provided with a speaker, the speaker is provided with a baffle, a speaker hole is penetrated in the baffle, a full-frequency speaker unit is combined in the speaker hole, A reflector is combined on the surface of the board, the reflector is provided with a body, the body is a pipe body and surrounds the horn hole with a bottom, the body extends obliquely forward from the periphery of the horn hole, on the front side of the body A middle and treble hole is formed by opening, and a bass port is formed on the rear side of the bottom of the body, and the top edge of the bass port covers the speaker unit rearward.

Preferably, the diameter of the body according to the present invention is 1.5 times the diameter of the single speaker, and the angle between the axis of the body and the baffle is between 55 and 60 degrees, and the bass The mouth is a fan-shaped opening.

When this preferred embodiment is used, the amplifier module is used to connect sound signals and power, and then the amplifier module is used to drive two speaker devices to play sound. The full-frequency sound waves played by the speaker unit will pass through. The reflector divides the frequency, so that the middle and high frequency sound waves are reflected in the body and transmitted outward from the middle and high sound holes.

The effect of the invention is that the middle and high frequency sound waves are guided through the inner wall of the body and finally transmitted forward from the middle and high sound holes, so that the sound waves emitted by the speaker unit can be frequency-divided and the speaker unit emits The sound is clearer, improving the sound quality of the sound played by the speaker device, and reducing the cost of using high-priced speaker units.

10‧‧‧Speaker device

11‧‧‧Speaker

111‧‧‧ Baffle

112‧‧‧Speaker hole

1121‧‧‧Outer bevel

1122‧‧‧Laryngeal

113‧‧‧ Harmony Horn Hole

114‧‧‧Inverting hole

115‧‧‧ Sound-absorbing cotton

12‧‧‧ Inverter tube

13‧‧‧Passive radiator

131‧‧‧ sound basin

14‧‧‧Single speaker

15‧‧‧ Harmony speaker unit

16‧‧‧ reflector

161‧‧‧ Ontology

162‧‧‧Middle and high pitch hole

163‧‧‧Guide

164‧‧‧Bass mouth

17‧‧‧ bass reflex element

171‧‧‧Curved reflector

18‧‧‧ chorus reflection board

181‧‧‧arc reflective surface

20‧‧‧ Subwoofer device

21‧‧‧ woofer

211‧‧‧Second baffle

212‧‧‧woofer hole

213‧‧‧Second phase hole

214‧‧‧Second sound-absorbing cotton

22‧‧‧Second Phase Inverter

23‧‧‧Second passive radiator

231‧‧‧Second Episode Sound Basin

24‧‧‧ woofer single

25‧‧‧ bass reflector

251‧‧‧Stent set

252‧‧‧carrying plate

253‧‧‧Conical diffuser

30‧‧‧Amplifier Module

FIG. 1 is a perspective view of a preferred embodiment of the present invention.

FIG. 2 is an exploded view of a horn device according to a preferred embodiment of the present invention.

3 is a side view of a horn device according to a preferred embodiment of the present invention.

FIG. 4 is an exploded view of a subwoofer device according to a preferred embodiment of the present invention.

FIG. 5 is a schematic diagram of a speaker device according to a preferred embodiment of the present invention.

FIG. 6 is a schematic diagram of a subwoofer device according to a preferred embodiment of the present invention.

In order to understand the technical features and practical effects of the present invention in detail, and can be implemented in accordance with the contents of the description, the preferred embodiment shown in the drawings is further described in detail as follows.

Please refer to the preferred embodiment of the present invention as shown in FIG. 1 to FIG. 4. The present invention provides a speaker with a frequency division effect, which includes a pair of speaker devices 10, a subwoofer device 20, and a speaker device 10 and The amplifier module 30 of the subwoofer device 20, wherein: as shown in FIG. 2 and FIG. 3, each speaker device 10 includes a speaker 11 and an inverter tube 12 and two passive radiators respectively coupled to the speaker 11. 13, a speaker unit 14, a chorus speaker unit 15, a reflector 16, a bass reflection element 17, and a chorus reflection plate 18, in which the speaker 11, as in the preferred embodiment, is made of wood A rectangular box, a baffle 111 is formed on the top of the speaker box 11, a horn hole 112 and a chorus horn hole 113 are respectively formed on the front side and the rear side of the baffle 111, and at the rear edge of the horn hole 112 Backwardly expanding to form an outwardly expanding slope 1121, a throat piece 1122 is combined at the front edge of the horn hole 112, the throat piece 1122 is a vertical arc-shaped body and the top protrudes from the horn hole 112, preferably the throat The sheet 1122 is made of brass. The front-to-rear distance between the horn hole 112 and the chorus horn hole 113 is the average diameter of the horn unit 14 and the chorus horn unit 15 A distance of 1.5 to 2 times, an inverting hole 114 is formed in the front of the speaker 11, and a sound-absorbing cotton 115 is provided around the speaker 11.

The inverting tube 12 is a straight tube body. The front end of the inverting tube 12 is embedded in the inverting hole 114. The inverting tube 12 is located in the speaker 11 and the rear end extends backward to the rear side of the speaker 11. The phase-inverting tube 12 cooperates with the phase-inverting hole 114 to have a low-frequency response to allow the low-frequency to extend downward. The phase-inverting tube 12 is preferably made of a material such as bamboo, which has a thin tube wall and corresponding acoustic waves. Wide bandwidth and better definition.

Two passive radiators 13 are embedded in the left and right sides of the speaker 11 respectively, and a sound collecting basin 131 is combined at the inner end of the two passive radiators 13 respectively. Through the arrangement of the two passive radiators 13, each sound collector can be used. The basin 131 collects the low-frequency sound waves in the speaker 11 and adjusts the pressure to avoid the resonance effect caused by the low-frequency sound waves in the speaker 11. The area occupied by the better two passive radiators 13 is larger than the speaker unit 14 and the chorus speaker unit The area occupied by the body 15; the two passive radiators 13 are configured in a symmetrical manner, which can offset the vibration generated on the speaker 11 when the two passive radiators 13 vibrate.

The speaker unit 14 is a full-range speaker unit or a coaxial speaker unit that can emit full-frequency sound waves. The speaker unit 14 is installed at the inner edge of the speaker hole 112. The chorus speaker unit 15 is a full-range speaker unit. Body or mid-woofer speaker unit, the horn unit 15 is installed in the horn unit 113, the horn unit 15 mainly acts on the sound field and can not interfere with the main sound unit 14 In the frequency division effect, the distance between the horn unit 14 and the chorus horn unit 15 is 1.5 to 2 times the average of the diameters of the two. The separation of the distances enhances the sense of depth of the sonic sound. In the preferred embodiment, the speaker unit 14 and the combined speaker unit 15 are both 4-inch speaker units. The speaker unit 14 uses a 20-watt coaxial speaker unit, and the combined speaker unit 15 uses 80. The mid-range speaker unit of the tile, the speaker unit 14 which is the main sound effect when it is matched, will not be interfered by the chorus speaker unit 15.

The reflector 16 is the baffle 111 combined with the speaker 11. The reflector 16 is provided with a body 161. The body 161 is a pipe body inclined with respect to the baffle 111. Wound around the horn hole 112, the body 161 extends obliquely forward from the periphery of the horn hole 112. Preferably, the body 161 is a round straight pipe body made of brass, and the inner side has a good guide for sound wave reflection. The effect and sound quality of the transmitted sound waves are better. The diameter of the body 161 is preferably 1.5 times the diameter of the horn unit 14. The angle between the axis of the body 161 and the baffle 111 is preferably an angle of 55 to 60 degrees.

A middle and treble hole 162 is opened on the front side of the body 161. The middle and treble hole 162 is a hole that is open up and down. Two left and right sound guide plates 163 are combined in the body 161. The two sound guide plates 163 are The brass sheet also divides the space in the body 161 into three long holes, reducing the degree of multiple reflections of the acoustic waves in the body 161. A bass port 164 is formed on the rear side of the bottom of the body 161. The left and right sides of the bass port 164 extend to the left and right sides of the body 161. The bass port 164 is a fan-shaped opening. The amplitude is 50 degrees, and the top edge of the bass port 164 covers the horn unit 14 directly above, so that the low-frequency sound waves emitted by the speaker unit 14 can be transmitted backward from the bass port 164, and the speaker unit The medium and high frequency sound waves uploaded in 14 directions can be guided forward along the hole wall of the body 161 covering the horn unit 14, and finally forwarded from the middle and high pitch hole 162, reaching the middle and high frequency and bass frequency division. effect.

The bass reflection element 17 is coupled to the baffle plate 111 of the speaker 11 and is located behind the reflector 16 and in front of the chorus speaker hole 113. The bass reflection element 17 includes two curved reflection plates connected to the left and right. 171, the two curved reflecting plates 171 are made of brass materials, respectively, which has a good reflection sound effect and the sound quality of reflected sound waves is better, and because the center position of the two curved reflecting plates 171 is staggered from the position directly behind the bass port 164 Therefore, after the low-frequency sound waves emitted from the bass port 164 are reflected by the two curved reflecting plates 171, the reflected low-frequency sound waves will not be reversely mixed with the low-frequency sound waves emitted from the bass port 164, and can reflect better sound quality. Low-frequency sound waves.

The synthesizing reflector 18 is a baffle 111 combined with the speaker 11 and is located on the rear side of the synthesizing horn hole 113. The synthesizing reflector 18 includes several layers of arcs with increasing diameters from bottom to top. The reflective surface 181, as in the preferred embodiment, is provided with three curved reflective surfaces 181, and three curved reflective surfaces 181 They are all brass surfaces that have a good sound reflection effect and better sound quality. The three curved reflecting surfaces 181 of the chorus reflection plate 18 can reflect the sound waves emitted by the chorus speaker unit 15 forward. Conduction.

Please refer to FIGS. 1 and 4. The subwoofer device 20 includes a subwoofer 21 and a second inverter tube 22, two second passive radiators 23, and a subwoofer unit respectively coupled to the subwoofer 21. A body 24 and a bass reflector 25, wherein the subwoofer 21, as in the preferred embodiment, is a rectangular box made of wood and having a volume larger than each of the speakers 11, and a second baffle is formed on the top of the subwoofer 21. 211. A woofer hole 212 is formed in the second baffle plate 211, a second phase inversion hole 213 is formed in the front of the subwoofer 21, and a second sound-absorbing cotton 214 is provided around the subwoofer 21. The second inverter tube 22 is a straight tube body. The front end of the second inverter tube 22 is embedded in the second inverter hole 213. The second inverter tube 22 is located in the subwoofer 21 and the rear end is backward. Extending, the second phase-inverting tube 22 cooperates with the second phase-inverting hole 213 to have a low-frequency response to extend the low-frequency downward effect. Preferably, the second phase-inverting tube 22 is made of a material such as bamboo. The pipe wall is thinner, corresponding to the advantages of wider sound wave bandwidth and better clarity.

Two second passive radiators 23 are respectively embedded in the left side and the right side of the woofer 21, and a second sound collecting basin 231 is combined at the inner end of the two second passive radiators 23 to pass through the two second passive radiators. The setting of 23 can use each second sound collecting basin 231 to collect the low-frequency sound waves in the subwoofer 21, and adjust the pressure to avoid the resonance effect of the low-frequency sound waves in the subwoofer 21. The better two passive radiators 23 occupy The area of the second passive radiator 23 is larger than the area occupied by the woofer unit 24; the two second passive radiators 23 are symmetrically arranged, which can offset the vibration of the subwoofer 21 when the two second passive radiators 23 vibrate. .

The woofer unit 24 is a horn unit capable of emitting low-frequency sound waves and is installed in the woofer hole 212. The woofer reflector 25 is the second baffle plate 211 coupled to the woofer 21, and the woofer reflector 25 is A bracket group 251 is coupled to a surface around the woofer hole 212. A carrier plate 252 is coupled between the carrier plate 252 and the carrier plate 252. The carrier plate 252 is a rectangular plate and is located directly above the woofer unit 24. A conical diffuser plate 253 is coupled to an inner surface of the carrier plate 252. The conical diffuser plate 253 is The conical plate made of brass and the tip is facing the center of the woofer unit 24, so that the bass emitted from the woofer unit 24 can be diffused to the surroundings through the conical diffuser plate 253 to achieve a better bass transmission effect. .

The amplifier module 30 is installed in the subwoofer 21 of the subwoofer device 20. The amplifier module 30 is electrically connected to the woofer unit 24. The amplifier module 30 is also connected to each speaker. The horn unit 14 and the horn unit 15 of the device 10 are electrically connected, so that the horn unit 14 and the horn unit 15 of each horn unit 10 are driven by the amplifier module 30 to emit sound waves. The bass reflector 25 is also driven by the amplifier module 30 to emit sound waves.

In addition to the aforementioned preferred embodiment, the baffle plate 111 of each horn device 10 of the present invention is disposed on the top of the speaker 11, and the baffle plate 111 is further provided with the horn unit 14, the chorus horn unit 15, In addition to the reflector 16, the bass reflection element 17, and the chorus reflection plate 18, the baffle plate 111 may also be arranged on the left or right side of the speaker box 11, and the above-mentioned speaker unit 14 and chord sound box may be provided on the baffle plate 111. The speaker unit 15, the reflector 16, the bass reflection element 17, and the combined reflection plate 18, at this time, both passive radiators 13 may be disposed on the top of the speaker 11 or on the front and rear sides of the speaker 11, respectively.

In addition to the present invention, the subwoofer device 20 is provided, so that the two speaker devices 10 cooperate with the subwoofer device 20 to become a 2.1-channel speaker, or the subwoofer device 20 may not be provided. In this case, the amplifier module 30 may be provided in the speaker 11 of one of the two speaker devices 10; in addition, the present invention may not be provided with the exception that the above-mentioned preferred embodiment includes the active speaker of the amplifier module 30 The amplifier module 30 uses the two speaker devices 10 or the combination of the two speaker devices 10 and the subwoofer device 20 as passive speakers that need to be connected with additional amplifiers, respectively.

When the present invention is used, please refer to the preferred embodiments shown in FIG. 1 and FIG. 5. The amplifier module 30 is used to connect audio signals and power. When the amplifier module 30 drives the two speaker devices 10, The horn unit 14 and the chorus horn unit 15 are driven to emit sound waves. The full-frequency sound waves emitted by the horn unit 14 are divided by the reflector 16. Because the top edge of the bass port 164 covers the horn unit 14 directly above, the mid-high frequency sound waves emitted by the horn unit 14 are reflected upward by the curved pipe wall inside the body 161. The separation of the sound guide sheet 163 avoids excessive reflection of sound waves during the forward conduction process, and low-frequency sound waves are reflected backward through the throat piece 1122 on the front side of the horn unit 14 and pass through the outwardly expanding slope 1121 on the rear side of the horn unit 14 The bass port 164 is transmitted backward, and the low-frequency sound waves passing through the bass port 164 are reflected by the two curved reflecting plates 171 of the bass reflection element 17 and transmitted forward. The above-mentioned function of dividing the high-frequency and low-frequency sound waves The sound from the speaker unit 14 can be clear and the sound quality can be improved. The middle and low frequency sound waves emitted by the horn speaker unit 15 are reflected forward from the horn reflection plate 18 having a plurality of hierarchical curved reflection surfaces 181.

Please refer to FIGS. 1 and 6. When the amplifier module 30 drives the subwoofer device 20, it drives the woofer unit 24 to emit low-frequency sound waves, and the low-frequency sound waves pass through the cone of the bass reflector 25. The shaped diffuser plate 253 reflects to the surroundings to prevent excessively low-frequency sound waves from resonating with objects in the environment to affect the sound quality of the listening sound in the environment.

The above description is only the preferred embodiments of the present invention, and is not intended to limit the scope of the rights claimed by the present invention. Any other equivalent changes or modifications made without departing from the spirit disclosed by the present invention should be included in the present invention. Within the scope of patent application.

Claims (10)

A loudspeaker with crossover effect includes a pair of loudspeaker devices and an amplifier module electrically connecting the two loudspeaker devices, wherein each loudspeaker device is provided with a speaker, the loudspeaker is provided with a baffle, and a loudspeaker is passed through the baffle Hole, a full-frequency horn unit is combined with the horn hole, and a reflector is combined with the surface of the baffle plate, the reflector is provided with a body, the body is a pipe body, and the bottom surrounds the horn hole, the The body extends obliquely forward from the periphery of the horn hole, and a middle and treble hole is opened at the front side of the body. The speaker with a frequency division effect as claimed in claim 1, wherein a bass port is formed on the rear side of the bottom of the body, and the top edge of the bass port covers the horn unit rearward, and The front edge is combined with a throat piece, the throat piece is a vertical arc-shaped piece body and the top end protrudes from the horn hole, and the rear edge of the horn hole is expanded outward to form an outwardly expanding slope. The loudspeaker with crossover effect as claimed in claim 2, wherein a bass reflection element is combined with the baffle, the bass reflection element is located behind the reflector, and the bass reflection element includes two curved reflection plates connected left and right. For example, the speaker with frequency division effect of claim 3, wherein two spaced-apart sound guides are combined on the left and right sides of the body, and the two sound guides divide the space in the body into three long holes. The speaker with a frequency division effect according to claim 4, wherein an inverting hole is provided in the speaker, and an inverting tube is combined in the inverting hole, the inverting tube is a bamboo tube body and the inner end faces the The speaker extends inside; more than one passive radiator is embedded around the speaker, and the inner end of each passive radiator is combined with a sound collecting basin. According to the speaker with crossover effect as claimed in claim 5, a chord horn hole is provided through the baffle, and the chord horn hole is located behind the horn hole. The sound horn unit is combined with a sound reflection plate on the baffle, and the sound reflection plate is located behind the sound hole. The loudspeaker with crossover effect as claimed in claim 6, wherein said synthesizing reflector comprises a plurality of layers of curved reflecting surfaces with increasing diameters from bottom to top. If the speaker with crossover effect according to any one of claims 1 to 7, further includes a subwoofer device, the subwoofer device is provided with a subwoofer, and the subwoofer is provided with a second baffle. The second baffle plate is provided with a woofer hole, and a woofer unit is combined with the woofer hole, and a bass reflector is combined with the position of the woofer unit. A bass reflector is combined with the second baffle, and the bass reflector is in the bass. The surface around the horn hole is combined with a bracket group, a bearing plate is combined between the bracket groups, a conical diffusion plate is combined on the inner surface of the bearing plate, and the tip of the conical diffusion plate faces the center of the woofer unit. The said amplifier module is arranged in the woofer, and the amplifier module is electrically connected to the woofer unit. A speaker device is provided with a speaker, the speaker is provided with a baffle plate, a speaker hole is penetrated through the baffle plate, a full-frequency speaker unit is combined with the speaker hole, and a reflector is combined on the surface of the baffle plate The reflector is provided with a body. The body is a pipe body and surrounds the horn hole with a bottom. The body extends obliquely forward from the periphery of the horn hole, and a middle and treble hole is opened at the front side of the body. A bass port is formed on the rear side of the bottom of the body, and the top edge of the bass port covers the speaker unit rearward. The horn device of claim 9, wherein the diameter of the body is 1.5 times the diameter of the horn alone, and the angle between the axis of the body and the baffle is between 55 and 60 degrees, so The bass port is a fan-shaped opening.