WO2018210185A1 - 一种汽车音响系统 - Google Patents

一种汽车音响系统 Download PDF

Info

Publication number
WO2018210185A1
WO2018210185A1 PCT/CN2018/086499 CN2018086499W WO2018210185A1 WO 2018210185 A1 WO2018210185 A1 WO 2018210185A1 CN 2018086499 W CN2018086499 W CN 2018086499W WO 2018210185 A1 WO2018210185 A1 WO 2018210185A1
Authority
WO
WIPO (PCT)
Prior art keywords
speaker
woofer
car
low
group
Prior art date
Application number
PCT/CN2018/086499
Other languages
English (en)
French (fr)
Inventor
郑晗
郑全录
宋军辉
Original Assignee
深圳纽斯声学系统有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳纽斯声学系统有限公司 filed Critical 深圳纽斯声学系统有限公司
Publication of WO2018210185A1 publication Critical patent/WO2018210185A1/zh

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B60R11/0217—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for loud-speakers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B60R11/0211—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for record carriers apparatus, e.g. video recorders, tape players or CD players
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
    • B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
    • B60R2011/0019—Side or rear panels
    • B60R2011/0021—Doors

Definitions

  • the present invention relates to an audio system, and more particularly to a car audio system.
  • Integrated car low speaker that is, the woofer is set on the independent low speaker body, and the bass volume is generated by the independent low speaker body 20 to 30 liters.
  • the car body type low speaker that is, the woofer is mounted on a box body formed in a certain space of the automobile body, and the low speaker body is made by using the 20-30 liter volume formed by the body box body.
  • the trunk luggage type car low speaker, the woofer is set on the rear window platform separated from the backup luggage compartment in the compartment, and the volume of the reserve luggage compartment is about 500 liters as the low speaker body.
  • the cabin door low speaker, the woofer is installed in the compartment door, and the low-speaker body is made by using the interlayer space formed by the outer wall and the inner wall of the compartment door.
  • the above traditional car low speakers use 6.5-inch to 12-inch large-caliber woofer, most of which need ultra-thin, need special process manufacturing, high cost, difficult to set up; in addition, the compartment door and trunk can not be sealed, leaking Gas, can not form a real low speaker, and the volume is not too large or too small, can not meet the low speaker volume requirements; therefore, the bass effect is very poor.
  • the precious car body can be used to make low-pitched speakers.
  • the vehicle body must be redesigned, the volume is difficult to meet the requirements, and the sealing process is complicated and difficult. In this way, the automobile low-speaker with the conventional technology has a large volume, and the installation and sealing process in the vehicle is complicated, the cost is high, and the bass effect is poor.
  • Such traditional car audio system solutions have been in use for more than 50 years.
  • the car audio system achieves the effect of a home theater with a low-cost car audio system.
  • the present invention includes a corresponding membrane group subwoofer and a mid-high-pitched speaker respectively mounted in a car, wherein the corresponding membrane group sub-speaker is at least one, and each of the corresponding membrane group sub-speakers includes at least one woofer and at least one set of woofer radiators
  • the woofer and the woofer group are respectively built in the wall of the corresponding membrane group subwoofer, and the two woofer units in each group of woofer radiators are arranged correspondingly before and after, respectively, respectively installed on the corresponding membrane a set of subwoofer walls, and mounting planes of the two bass radiator units are coplanar, parallel, vertical or inclined with respect to the mounting plane of the woofer;
  • the middle tweeter is at least one, each of the middle One or two speaker units are installed in the tweeter.
  • the speaker unit is a full-range speaker unit.
  • two speaker units are installed in the tweeter, one speaker unit is a full-range speaker. Unit and the other is
  • the corresponding membrane group low speaker is installed in the car on the front left compartment door, the front right compartment door, the rear left compartment door, the rear right compartment door, the rear window platform, the trunk compartment, the positive One or more of the lower part of the driver's seat or the lower passenger seat;
  • the middle tweeter installed in the car is located at the upper part of the front left door, the upper part of the front right door, the upper part of the rear left door, the upper part of the rear right door, the left A column, the right A column, One or more of the rear window platform or instrument panel;
  • the middle and high sound speakers are installed in a middle and high sound speaker, and the middle and high sound speakers are installed inside the automobile; the middle and high sound speakers are closed boxes or open boxes, and are installed in the box of the corresponding film group low speakers. ;
  • the middle and high sound speakers are installed in a box corresponding to the membrane group low speaker;
  • the distance between the diaphragm faces of the two bass radiator units in each set of said bass radiator groups is smaller than the diameter of a single woofer unit in said woofer; two sets of bass radiation in each set of said woofer groups
  • the diaphragm planes of the unit are parallel to each other;
  • a highest point of the vibrating member of each of the woofer units in the woofer is on the same level as a highest point of the vibrating members of the two woofer units in each of the sets of woofer groups;
  • the corresponding film group low speaker is driven by a separate subwoofer power output of a car audio and video player installed in the car, and the car audio and video player is a "2.1", “4.1”, “5.1” or “7.1” system, wherein The full-range power outputs of "2", "4", "5", and “7” are respectively connected to the respective middle and high-pitched speakers, and the ".1" bass power output is connected to the corresponding film group low speaker;
  • the car audio system further includes a car audio and video player, and the car audio and video player is provided with a four-channel power amplifier integrated circuit.
  • the car four-channel power amplifier integrated circuit is a four-way BTL power amplifier
  • two of the four-channel audio signal input Still maintaining the original full-range audio signal input unchanged, the two full-range audio power outputs are respectively connected to the middle and high-pitched speakers;
  • the other two full-frequency audio input signals are first input to the low-pass filter, and the low-pass filter output is combined.
  • the low frequency audio signal is input to the input end of the other two input of the automobile four-channel power amplifier integrated circuit, and the two low frequency power outputs are respectively connected to different corresponding film group low speakers or the same corresponding film group low speaker.
  • the invention adopts the corresponding membrane group low speaker + middle and high sound speaker system solution, so that the whole vehicle low, medium and high sound can get good sound quality.
  • the invention adopts a corresponding membrane group low speaker, and a plurality of woofer unit and a plurality of groups of woofer radiators are arranged in the box body, and the electroacoustic conversion is completed by the interaction of sound waves.
  • the volume of the required box is greatly reduced, from 20 to 30 liters to less than 2.6 liters, the weight is greatly reduced, and the thickness is thinner, which solves the problem that the conventional technology low-sound speaker is difficult to install and use in the automobile, and can be conveniently
  • the ground is placed under the seat of the car and the front and rear driver's seat or the rear window platform, the trunk or a small other place in the car.
  • the invention adopts a plurality of woofer units, which improves the electro-acoustic conversion efficiency and greatly improves the power of the low-speaker; at the same time, the power of each woofer unit is reduced, and the voice coil displacement of the woofer unit is reduced. Reduces the electro-acoustic conversion distortion of the low speaker.
  • the present invention employs a bass radiator group, each group of bass radiators being composed of a pair of bass radiator units, the pair of bass radiator units being symmetrically arranged one after the other. They vibrate at the same time, and the vibration direction is opposite, the vibration amplitude is equal, the vibration force is cancelled, and the mechanical vibration of the electroacoustic conversion is greatly reduced, and the vibration noise is reduced while the bass is enhanced.
  • the invention overcomes the drawback that the bass effect of the traditional low speaker is drastically reduced at a small volume.
  • the bass reduction of the present invention is still very good at a small volume, and the bass reduction balance of the bass volume and the small volume is well realized.
  • the invention reduces the volume of the low speaker by 90% and is lighter in weight, which is more advantageous for the ID design.
  • the invention uses a small-diameter ordinary woofer, such as a 3.5-inch ordinary woofer to replace the 6.5-inch to 10-inch special design and special-purpose ultra-thin woofer, which has less material, low cost and is easy to manufacture.
  • a small-diameter ordinary woofer such as a 3.5-inch ordinary woofer to replace the 6.5-inch to 10-inch special design and special-purpose ultra-thin woofer, which has less material, low cost and is easy to manufacture.
  • the invention reduces the electroacoustic conversion vibration of the compartment door, improves the service life of the compartment door and the reliability of the whole vehicle.
  • the corresponding membrane group low speaker of the invention is an independent closed box body, which avoids the bass delay of the traditional low-profile low-level speaker, improves the audio reaction speed, and has better bass performance.
  • the invention eliminates the wind noise generated by the inverted tube of the traditional open low speaker and the sound output port thereof, and the noise of the bass sound air flow transmission is eliminated, so that the playing bass is purer.
  • the invention uses a small-caliber woofer and a small-volume low-speaker body, and does not depend on the car body itself, and the self-contained independent low-level speaker makes the vehicle design easier and more convenient. It can reduce the cost of the body, reduce the number of parts, simplify the manufacturing and installation process, and reduce the cost of the car itself.
  • the invention is light in weight, reduces vehicle weight, reduces fuel consumption, and makes the whole vehicle more green and environmentally friendly.
  • the mid-high-pitched speaker of the present invention is disposed at the upper portion of the compartment door for better sound image localization and better mid-high sound quality.
  • Embodiment 1 is a schematic structural view of Embodiment 1 of the present invention.
  • Embodiment 2 is a schematic structural view of Embodiment 2 of the present invention.
  • Embodiment 3 is a schematic structural view of Embodiment 3 of the present invention.
  • Embodiment 4 is a schematic structural view of Embodiment 4 of the present invention.
  • Figure 5 is a schematic structural view of Embodiment 5 of the present invention.
  • Embodiment 6 is a schematic structural view of Embodiment 6 of the present invention.
  • Figure 7 is a schematic structural view of Embodiment 7 of the present invention.
  • Figure 8 is a schematic structural view of Embodiment 8 of the present invention.
  • Figure 9 is a schematic structural view of Embodiment 9 of the present invention.
  • FIG. 10A is a schematic diagram showing the internal structure of a corresponding diaphragm group low speaker according to Embodiment 1 of the present invention.
  • Figure 10B is a bottom view of Figure 10A;
  • 11A is a schematic diagram showing the internal structure of a mid-high-pitched speaker according to Embodiment 2 of the present invention.
  • Figure 11B is a bottom view of Figure 11A;
  • FIG. 12A is a schematic diagram showing the internal structure of a corresponding diaphragm group low speaker according to Embodiment 4 of the present invention.
  • Figure 12B is a bottom view of Figure 12A;
  • FIG. 13A is a schematic diagram showing the internal structure of a corresponding diaphragm group low speaker according to Embodiment 3 of the present invention.
  • Figure 13B is a left side view of Figure 13A;
  • FIG. 14A is a schematic diagram showing the internal structure of a corresponding membrane group low speaker in Embodiment 9 of the present invention.
  • Figure 14B is a left side view of Figure 14A;
  • Figure 15 is a schematic structural view of Embodiment 10 of the present invention.
  • Figure 16 is a schematic diagram of a four-way power amplifier circuit of a car audio and video player of the present invention.
  • 1 is the car
  • 2 is the corresponding membrane group low speaker
  • 3 is the middle and high sound speaker
  • 4 is the woofer
  • 5 is the bass radiator group
  • 6 is the middle and high sound speaker
  • 7 is the interior space
  • 8 is the front left compartment door 9 is the front right compartment door
  • 10 is the left A-pillar
  • 11 is the right A-pillar
  • 12 is the rear left compartment door
  • 13 is the rear right compartment door
  • 14 is the rear window platform of the car
  • 15 is the trunk
  • 16 is the driving.
  • Seat, 17 is the co-pilot seat
  • 18 is the instrument panel
  • 19 is the car audio and video player
  • 20 is the car four-way power amplifier integrated circuit
  • 21 is the low-pass filter.
  • the car audio system of the present invention comprises a corresponding film group low speaker 2 and a middle tweeter speaker 3 respectively installed in the interior space 7 of the automobile 1, wherein the corresponding film group low speaker 2 is at least one (1 to 6),
  • the middle tweeter 3 is at least one (2 to 20), and each of the tweeters 3 can be composed of 1 to 2 mid-high tweeter units. If it is one, it is a full-range speaker unit, if it is 2 One is a full-range speaker unit and the other is a tweeter unit.
  • Each of the corresponding membrane group subwoofers 2 includes at least one woofer 4 and at least one set of woofer groups 5, which are respectively built in the wall of the corresponding membrane group subwoofer 2.
  • the woofer 4 has a unit diameter of 3 inches to 4.5 inches, including at least one woofer unit (1 to 4); the woofer group 5 can be 1 to 4 groups, each set of two bass radiator units, The two bass radiator units are correspondingly disposed on the front and rear of the corresponding membrane group lower cabinet body 2, and the mounting planes of the two bass radiator units are coplanar, parallel, vertical or inclined with the mounting plane of the woofer 4. Settings.
  • the woofer 4 is composed of the same woofer unit, which are symmetrically arranged; all woofer units are mounted on the same wall of the corresponding membrane group subwoofer 2, and are all electrically in-phase connected.
  • All of the bass radiator units in each of the bass radiator groups 5 are identical, and the walls of the corresponding membrane group subwoofers in which all of the bass radiator units are mounted are parallel or coplanar, and two bass radiations in each group of bass radiator groups 5
  • the unit is symmetrically mounted on the two tank walls of the corresponding membrane group subwoofer 2 which are parallel to each other.
  • the woofer unit of the woofer 4 has the highest point of the vibrating member [such as a diaphragm or a loop (also called a rubber edge, a foam edge, etc.) and the bass radiator group 5
  • the highest point of the vibrating parts of the bass radiator unit such as diaphragm or folding ring (also known as rubber edge, foam edge, etc.)] is on the same plane.
  • the minimum volume of the corresponding diaphragm group 2 varies with the diaphragm area of the woofer 4. For example, a 92 mm diameter, conical 3.5-inch woofer unit requires a minimum volume of 1 liter and an optimum volume of 1.3 liters.
  • the minimum volume required for a conical woofer unit is 0.4 liters for 3 inches, 1 liter for 3.5 inches, and 4 inches for 3.5 inches. 2 liters, 4.5 inches is 4 liters.
  • the required minimum volume of a single elliptical woofer unit refers to a conical woofer unit with a similar diaphragm area according to its diaphragm area.
  • the optimum volume of the corresponding membrane group lower speaker 2 of the unit, and N is the number of the woofer unit of the woofer 4.
  • the two bass radiator units of each group of bass radiators 5 are arranged one after the other, and the planes of the diaphragms of the two bass radiator units are parallel, and the distance between them is smaller than the diameter of the single woofer unit of the woofer 4. .
  • the woofer unit of each woofer 4 in the corresponding membrane group subwoofer 2 is at least one (1 to 4), and may be a conical woofer unit or an elliptical woofer unit.
  • the conical woofer unit has a diameter of 3 inches to 4.5 inches.
  • the caliber is too large. Not only is the subwoofer too large, it is not easy to set in the car, and the bass effect is not good, and the cost is increased.
  • the number of subwoofer units is too small. Not only does the cost increase, the bass effect is not good, and the manufacturing process is complicated. Among them, a 3.5-inch diameter 92mm round woofer unit is the best choice.
  • the corresponding membrane group low speaker 2 is self-contained and becomes an ultra-small and ultra-thin low-level speaker, and its volume is only one tenth of that of the conventional low-level speaker.
  • the corresponding diaphragm group speaker 2 is very easily disposed in the car 1, and can be disposed in the car 1 at the front left compartment door 8, the front right compartment door 9, the rear left compartment door 12, and the rear right compartment. Any place in the door 13 or on the rear window platform 14, in the trunk 15, in the lower portion of the driver's seat 16 or in the lower portion of the passenger seat 17, any place that can be placed.
  • the corresponding membrane group subwoofer 2 may be one or more, and may also be mixed in the car 1, such as some disposed under the front and rear passenger seats 16, 17 and others disposed on the rear window platform 14. Or some are placed on the four compartment doors, others are placed under the front and rear passenger seats 16, 17, or others are placed on the rear window platform 14, or others are placed in the trunk 15 .
  • the tweeter 3 can be directly mounted at each corresponding position in the car 1, such as the upper part of the front left door 8, the upper part of the front right door 9, the upper part of the rear left door 12, and the rear.
  • the mid-high sound speaker 6 can be a closed box or an open box (ie, an opening is provided in the box).
  • the middle tweeter 3 can be disposed at the upper portions of the front left and right car doors 8, 9 and the rear left and right car doors 12, 13, and the installation position should be as close as possible to the upper portion, so that the listening effect is best, and it can also be set to the left of the car 1,
  • the right A-pillars 10, 11 may also be disposed on the rear window platform 14 or on the instrument panel 18, and may be mixed or the like.
  • a mid-high-pitched speaker 3 can be disposed on the instrument panel 18 of the car 1, as a center-mounted speaker and a front left and right speaker and a surround left and right speaker and a corresponding film group subwoofer 2 forming a 5.1 or 7.1 home theater in the interior space 7. system.
  • the corresponding film group subwoofer 2 is driven by a separate subwoofer power output of the car audio and video player 19 installed in the car 1, which is a "2.1", “4.1”, “5.1” or “7.1” system.
  • the power output of each of "2", “4", "5", and “7” is connected to the corresponding middle and high-pitched speaker 3, and the ".1" bass power output is connected to the corresponding film group low speaker 2.
  • the corresponding membrane group low speaker 2 of the present embodiment has a rectangular parallelepiped shape, and a subwoofer 4 is disposed in the corresponding membrane group low speaker 2 and is installed in front of the corresponding membrane group low speaker 2 .
  • the woofer 4 can be composed of one woofer unit or multiple, each woofer unit can be round or elliptical, preferably with a conical woofer unit, caliber It is 3 inches to 4.5 inches; in this embodiment, a circular woofer unit having a diameter of 92 mm is mounted in each woofer 4.
  • a set of bass radiator groups 5 are also disposed in the corresponding membrane group subwoofer 2, and each group of bass radiator groups 5 is composed of a pair of (2) bass radiator units, and a pair of bass radiator units in each group are mutually forward and backward.
  • the bass radiator is also called passive passive low frequency radiator or passive speaker. It is also called empty speaker. It has no magnet and voice coil, only diaphragm and its supporting device; it can be round, oval or rectangular. The shape can be either flat or conical.
  • This embodiment uses a set of bass radiators 5 which are constructed of two identical circular flat-plate bass radiator units having a diameter of 90 mm.
  • the two woofer radiator units are symmetrically mounted at one end of the corresponding membrane group subwoofer 2, and one of the woofer radiator units is mounted on the wall of the woofer 4 and the corresponding membrane group lower enclosure 2.
  • the corresponding membrane group low speaker 2 cabinet can be made of plastic, metal and wood, and can be manufactured by injection molding.
  • the membrane group low speaker 2 is manufactured by an open mold injection method, and its outer shape is 185 mm long ⁇ 140 mm high ⁇ 60 mm thick.
  • the corresponding membrane group low speaker 2 After the corresponding membrane group low speaker 2 is prepared, it can be installed in the car 1 together with the middle and high sound speaker 3.
  • the corresponding membrane group low speaker 2 is two, and the middle and high sound speaker 3 is four; two corresponding membrane group low speakers 2 are respectively disposed at the lower portions of the front left and right compartment doors 8, 9 and are installed in the compartment door.
  • the four mid-range loudspeakers 3 are full-range speaker units of ⁇ 38 mm to ⁇ 77 mm, which are respectively mounted on the upper left and right compartment doors 8, 9 and the upper rear left and right compartment doors 12, 13, respectively, and the middle and high-pitched loudspeakers 3 are arranged in the compartment door.
  • the installation position should be as close as possible to get the best listening effect.
  • the middle tweeter 3 can also be disposed on the left and right A-pillars 10, 11 or on the rear window platform 14 and the instrument panel 18.
  • four ⁇ 45 mm full-range speaker units are used, which are installed in four compartments. The upper part of the door.
  • the difference between this embodiment and the first embodiment is that the corresponding film group low speakers 2 of the embodiment are four, which are respectively disposed on the front left and right car doors 8, 9 respectively.
  • the lower part and the lower left and right compartment doors 12, 13 are lower; in addition, the middle tweeter 3 of the embodiment is four, which are respectively installed on the middle and high speakers 6, and then the four middle and high speakers 6 are mounted to four.
  • the middle and high speakers 6 of this embodiment are closed boxes. The rest are the same as in the first embodiment.
  • the difference between the embodiment and the first embodiment is that the corresponding film group low speaker 2 of the embodiment is one, and the woofer 4 of the corresponding film group low speaker 2 is two.
  • the bass radiator group 5 is two groups, each group of two bass radiator units; two woofer units and two sets of bass radiator groups are arranged in a matrix, two woofer units are located at the upper part, two The group of bass radiators is located at the bottom.
  • the corresponding film group subwoofer 2 of the present embodiment is disposed in the middle of the rear window platform 14. The rest are the same as in the first embodiment.
  • the difference between the embodiment and the first embodiment is that the corresponding film group low speaker 2 of the embodiment is one or two, and each of the corresponding film group low speaker 2 has a bass.
  • the speakers 4 are two woofer units, the woofer group 5 is a group, and the woofer group 5 is located between the two woofer units.
  • the two bass radiator units of this embodiment are rectangular, and their outer dimensions are 90 mm ⁇ 125 mm, and the outer dimensions of the corresponding diaphragm group 2 are 300 mm ⁇ 220 mm ⁇ 50 mm.
  • the corresponding membrane group subwoofer 2 When the corresponding membrane group subwoofer 2 is two, it is respectively disposed under the front driving seat 16 and the passenger seat 17, and when the corresponding diaphragm group lower speaker 2 is one, it is disposed in the front driving seat 16 or the first driving. Below the seat 17. The rest are the same as in the first embodiment.
  • the difference between this embodiment and the first embodiment is that the middle and high-pitched speakers 3 of the present embodiment are two, which are respectively disposed at the upper portions of the front left and right car doors 8, 9 and the rest are the same as the first embodiment. the same.
  • the difference between this embodiment and the second embodiment is that the middle tweeter 3 of the embodiment is five, one of which is set as a center tone on the instrument panel 18 to form a 5.1 home theater system, and the rest are equal.
  • the second embodiment is the same.
  • the difference between this embodiment and the first embodiment is that the middle and high-pitched speakers 3 of the present embodiment are two, and the two middle-speaker speakers 3 are respectively disposed on the left A-pillar 10 and the right A-pillar 11. The rest are the same as in the first embodiment.
  • the difference between this embodiment and the first embodiment is that the mid-high-pitched speaker 3 disposed in the rear left and right compartment doors 12, 13 in the first embodiment changes the installation position and is disposed at the left end of the rear window platform 14. And the right end. The rest are the same as in the first embodiment.
  • the difference between the embodiment and the first embodiment is that the middle and high-pitched speakers 3 of the embodiment are four, and the four middle-high-pitched speakers 3 are respectively installed in four corresponding positions.
  • the middle and high sound speakers 3 and the bass radiator group 5 in each corresponding membrane group low speaker 2 are respectively located on both sides of the woofer 4, and then the four corresponding membrane group subwoofers 2 are set in front.
  • Left and right car doors 8, 9 and rear left and right car doors 12, 13. The rest are the same as in the first embodiment.
  • the difference between this embodiment and the third embodiment is that the corresponding film group subwoofer 2 of the present embodiment is disposed in the trunk 15 of the car 1, and the center tweeter 3 is disposed at the upper portion of the four car doors. The rest are the same as in the third embodiment.
  • This embodiment can be applied to a hatchback car or an SUV car.
  • the four-way power amplifier integrated circuit 20 of the present embodiment is built in a car audio and video player 19, which is a conventional BTL (bridge push-pull circuit) output four-way power amplifier, such as TDA7388, TDA7850, and the like.
  • the conventional four-channel full-range audio signal direct input method is discarded, and the two-way full-frequency audio signal is directly input to the two inputs of the automobile four-channel power amplifier integrated circuit, as in the conventional method.
  • the other two full-range audio signals are first input to the input of the low-pass filter 21, filtered by the low-pass filter 21 to obtain a synthesized low-frequency signal, and then input to the other two inputs of the four-way power amplifier integrated circuit 20 of the automobile.
  • the cutoff frequency of the low pass filter 21 is 50 to 300 Hz, and the present embodiment is 120 Hz.
  • the automotive four-way power amplifier integrated circuit 20 of the present embodiment is the TDA7388.
  • the working principle of the invention is:
  • the mid-high-pitched speaker 3 completes the electro-acoustic conversion, radiating the mid-high-pitched sound to the interior space 7 of the car 1, and since the aperture is small, the diaphragm is very Small and light, the voice coil is also very small and light, so that the middle and high sounds can be well converted to electro-acoustic, resulting in a good, clear and resounding high-pitched high-pitched sound; at the same time, its installation position is in the compartment door In the upper part, the sound image is well positioned, and the mid-high sound effect of the home theater is obtained in the interior space.
  • the diaphragm of the woofer 4 When the low frequency audio power is applied to the woofer 4, the diaphragm of the woofer 4 generates vibration to realize electroacoustic conversion. Since the corresponding diaphragm group low speaker 2 in which the woofer speaker 4 is located is a closed cavity, when the diaphragm of the woofer speaker 4 vibrates in the direction of the corresponding diaphragm group lower speaker 2, the air in the corresponding diaphragm group lower speaker 2 is compressed, which The spring effect is generated, so that the air pressure in the corresponding diaphragm group lower speaker 2 is stronger than the atmospheric pressure, thereby driving the diaphragm of the corresponding bass radiator unit of the bass radiator group 5 to simultaneously vibrate to the corresponding diaphragm group low speaker 2 .
  • the diaphragm of the woofer 4 When the diaphragm of the woofer 4 is driven by the low audio power and vibrates outside the corresponding diaphragm group lower body 2, the compressed air spring in the corresponding diaphragm group lower speaker 2 is released, and the resilience generated by the woofer 4 boosts the woofer 4
  • the diaphragm reduces the pressure in the corresponding diaphragm group lower speaker 2, so that the pressure in the corresponding diaphragm group lower speaker 2 is lower than the atmospheric pressure, so that the diaphragm of the bass radiator unit simultaneously goes to the corresponding membrane group low speaker 2
  • Internal vibration which not only greatly increases the area of the bass diaphragm (increased by about 2 times), but also increases the amplitude of the diaphragm, so that the generated bass sound waves are enhanced without relying on the volume of the cabinet (the traditional technology of the subwoofer)
  • the volume of the tank is generally 20 liters to 50 liters).
  • the corresponding membrane group low speaker 2 is a closed box, corresponding to the air spring reaction force generated by the membrane group low speaker 2, so that the voice coil displacement of each woofer is reduced, and the audio power is shared by a plurality of woofer units. The voice coil displacement is further reduced, and the electro-acoustic conversion distortion is reduced while increasing the low speaker power.
  • the invention reduces the volume of the low speaker by 90% and is light in weight.
  • a small-caliber ordinary low-frequency speaker of about 3.5 inches and a small box of 2.6 liters
  • the effect of the 8-inch woofer and the large-box traditional technology subwoofer can be obtained.
  • the bass is greatly enhanced, and it is thicker, more powerful, deeper in dive, less distorted, and less expensive.
  • the middle and high-pitched speakers 3 can produce clear and loud mid-range and high-pitched sounds, so that the entire low, medium and high-pitched sounds of the interior space 7 can be restored and played well, achieving the sound effects of the home theater;
  • the cost of a car audio system meets or exceeds the sound quality of a high-end car audio system, and the process is simpler, components are reduced, manufacturing is easier, smaller, thinner, easier to design, and both in terms of car audio itself and car body manufacturing. Reduce the cost of the entire vehicle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

本发明涉及音响系统，具体地说是一种汽车音响系统，包括分别安装在汽车内的对应膜组低音箱和中高音扬声器，对应膜组低音箱为至少一个，每个所述对应膜组低音箱包括至少一个低音扬声器和至少一组低音辐射器组，该低音扬声器及低音辐射器组分别内置于所述对应膜组低音箱的箱壁上，每组低音辐射器组中的两只低音辐射器单元前后对应设置，分别安装在所述对应膜组低音箱的箱壁上，且两只低音辐射器单元的安装平面与所述低音扬声器的安装平面共面、平行、垂直或倾斜设置。本发明通过对应膜组低音箱和中高音扬声器共同完成汽车内的电声转接，用低于最低端汽车音响系统的成本达到和超过高端汽车音响系统的音质，且整车生产工艺简化，成本降低。

Description

一种汽车音响系统 技术领域
本发明涉及音响系统，具体地说是一种汽车音响系统。
背景技术
随着科学技术的进步，人们对汽车音响的音质要求越来越高；而到目前，已公开的汽车音响系统解决方案为传统技术低音箱+中高音扬声器。在福建科学技术出版社于2008年7月出版的《扬声器与音箱设计手册》中，公开了密闭式音箱(60～67页)，开口式音箱(67～77页)，无源辐射音箱(77～78页)。这些公开的传统技术制作的汽车低音箱为以下四种物理结构：
1.一体式汽车低音箱，即低音扬声器设置在独立的低音箱体上，利用独立的低音箱体20～30升的箱体容积产生低音。
2.车体式汽车低音箱，即低音扬声器安装在汽车车体形成的一定空间的箱体上，利用车身箱体形成的20～30升容积来做低音箱体。
3.后备行李厢式汽车低音箱，将低音扬声器设置在车厢内与后备行李厢隔离的后窗平台上，利用后备行李厢500升左右的容积来做为低音箱体。
4.车厢门低音箱，将低音扬声器安装在车厢门内，利用车厢门的外壁与内壁形成的夹层空间做低音箱体。
以上传统汽车低音箱都要用6.5英寸～12英寸的大口径低音扬声器，大部分还需要超薄的，需要特别工艺制造，成本很高，设置困难；另外，车厢门和后备厢无法密封，漏气，不能形成真正的低音箱，且容积不是过大就是过小，不能满足低音箱容积要求；因此，低音效果很差。而宝贵的车体可利用来做低音箱的地方非常有限，必须对整车车体进行重新设计，容积很难满足要求，且密封工艺复杂困难。这样已有传统技术的汽车低音箱就形成了体积大，车内安装密封工艺复杂困难，成本高，低音效果差的弊端。而这样传统的汽车音响系统解决方案已沿用了50年以上。
发明内容
为了解决传统汽车音响存在的上述问题，本发明的目的在于提供一种汽车音响系统。该汽车音响系统用低成本实现汽车车载音响系统达到家庭影院的效果。
本发明的目的是通过以下技术方案来实现的：
本发明包括分别安装在汽车内的对应膜组低音箱和中高音扬声器，其中对应膜组低音箱为至少一个，每个所述对应膜组低音箱包括至少一个低音扬声器和至少一组低音辐射器组，该低音扬声器及低音辐射器组分别内置于所述对应膜组低音箱的箱壁上，每组低音辐射器组中的两只低音辐射器单元前后对应设置，分别 安装在所述对应膜组低音箱的箱壁上，且两只低音辐射器单元的安装平面与所述低音扬声器的安装平面共面、平行、垂直或倾斜设置；所述中高音扬声器为至少一个，每个所述中高音扬声器内设置1～2只扬声器单元，当中高音扬声器内设置1只扬声器单元时，该扬声器单元为全频扬声器单元，当中高音扬声器内设置2只扬声器单元时，一只扬声器单元为全频扬声器单元、另一只为高音扬声器单元；
其中：所述对应膜组低音箱安装于汽车内的位置位于前左车厢门上、前右车厢门上、后左车厢门上、后右车厢门上、后窗平台上、后备厢内、正驾驶座椅下方或副驾驶座椅下方中的一处或一处以上；
所述中高音扬声器安装于汽车内的位置位于前左车厢门的上部、前右车厢门的上部、后左车厢门的上部、后右车厢门的上部、左A柱上、右A柱上、后窗平台或仪表台上中的一处或一处以上；
所述中高音扬声器安装在中高音音箱内，该中高音音箱安装于所述汽车的内部；所述中高音音箱为封闭箱体、或为开口箱体，安装在对应膜组低音箱的箱体内；
所述中高音扬声器安装在对应膜组低音箱的箱体内；
每组所述低音辐射器组中的两只低音辐射器单元振膜平面之间的距离小于所述低音扬声器中单个低音扬声器单元的直径；每组所述低音辐射器组中的两只低音辐射器单元的振膜平面相互平行；
每个所述低音扬声器中的低音扬声器单元的振动部件的最高点与每组所述低音辐射器组中的两只低音辐射器单元的振动部件的最高点在同一水平面上；
所述对应膜组低音箱通过安装在汽车内的汽车影音播放机的单独一路低音炮功率输出驱动，该汽车影音播放机为“2.1”、“4.1”、“5.1”或“7.1”系统，其中“2”、“4”、“5”和“7”的各路全频功率输出分别连接相应的各所述中高音扬声器，“.1”低音功率输出连接所述对应膜组低音箱；
所述汽车音响系统还包括汽车影音播放机，该汽车影音播放机中设有汽车四路功放集成电路，当汽车四路功放集成电路为四路BTL功放时，四路音频信号输入中的两路仍然保持原全频音频信号输入不变，这两路全频音频功率输出分别连接所述中高音扬声器；另两路全频音频输入信号先输入低通滤波器，低通滤波器输出的一路合成低频音频信号再输入给汽车四路功放集成电路的另两路输入连接在一起的输入端，这两路低频功率输出分别连接不同的所述对应膜组低音箱或同一个对应膜组低音箱内的不同低音扬声器；
本发明的优点与积极效果为：
1.本发明采用了对应膜组低音箱+中高音扬声器系统解决方案，使整车低、中高音都能得到很好的播放音质。
2.本发明采用了对应膜组低音箱，并在箱体内设置有多个低音扬声器单元 和多组低音辐射器组，它们通过声波的相互作用共同完成电声转换。使所需箱体容积大幅度减小，从20～30升减为不到2.6升，重量大幅度减轻，厚度更薄，解决了传统技术低音箱硕大在汽车内不易安装使用难题，能够很方便地安放在车厢门及正副驾驶员的座椅下或后窗平台、后备厢或车内其他一个很小的地方。
3.本发明采用了多只低音扬声器单元，提高了电声转换效率，还大大提高了低音箱的功率；同时，每只低音扬声器单元承受的功率降低，低音扬声器单元的音圈位移减小，降低了低音箱的电声转换失真。
4.本发明采用了低音辐射器组，每组低音辐射器组由一对低音辐射器单元组成，这一对低音辐射器单元一前一后前后对称设置。它们同时振动，且振动方向相反，振动幅度相等，振动力抵消，大幅度减少了电声转换的机械振动，在使低音增强的同时，振动杂音降低。
5.本发明克服了传统低音箱在小音量时低音效果急剧下降的弊端，本发明在小音量时低音还原仍然非常好，很好地实现了低音大音量和小音量的低音还原平衡。
6.本发明减少了低音箱体积的90％，且重量轻，更利于ID设计。
7.本发明用小口径普通低音扬声器，如用3.5寸普通低音扬声器替代6.5英寸～10英寸特别设计及专门工艺的超薄低音扬声器，用料少，成本低，易于生产制造。
8.本发明降低了车厢门的电声转换震动，提高车厢门寿命和整车可靠性。
9.本发明的对应膜组低音箱为独立密闭箱体，避免了传统技术的开口低音箱的低音延迟，提高了音频反应速度，低音效果更佳。
10.本发明消除了传统开口低音箱的倒相管及其出声口产生的风噪，低音声气流传输噪声的消除，使播放的低音更纯净。
11.本发明使用了小口径低音扬声器和小体积低音箱体，且自己本身不依赖汽车车体，自成完整独立的低音箱，使汽车整车设计更容易、方便。能够降低车身成本，减少零部件数量，简化生产制造安装工艺，降低汽车本身的成本。
12.本发明重量轻，减少车重，降低油耗，使整车更绿色环保。
13.本发明的中高音扬声器设置在车厢门的位置上部，能得到更好的声像定位及更好的中高音音质。
附图说明
图1为本发明实施例一的结构示意图；
图2为本发明实施例二的结构示意图；
图3为本发明实施例三的结构示意图；
图4为本发明实施例四的结构示意图；
图5为本发明实施例五的结构示意图；
图6为本发明实施例六的结构示意图；
图7为本发明实施例七的结构示意图；
图8为本发明实施例八的结构示意图；
图9为本发明实施例九的结构示意图；
图10A为本发明实施例一中对应膜组低音箱的内部结构示意图；
图10B为图10A的仰视图；
图11A为本发明实施例二中中高音扬声器的内部结构示意图；
图11B为图11A的仰视图；
图12A为本发明实施例四中对应膜组低音箱的内部结构示意图；
图12B为图12A的仰视图；
图13A为本发明实施例三中对应膜组低音箱的内部结构示意图；
图13B为图13A的左视图；
图14A为本发明实施例九中对应膜组低音箱的内部结构示意图；
图14B为图14A的左视图；
图15为本发明实施例十的结构示意图；
图16为本发明汽车影音播放机的汽车四路功放电路原理图；
其中：1为汽车，2为对应膜组低音箱，3为中高音扬声器，4为低音扬声器，5为低音辐射器组，6为中高音音箱，7为车内空间，8为前左车厢门，9为前右车厢门，10为左A柱，11为右A柱，12为后左车厢门，13为后右车厢门，14为汽车后窗平台，15为后备厢，16为正驾驶座椅，17为副驾驶座椅，18为仪表台，19为汽车影音播放机，20为汽车四路功放集成电路，21为低通滤波器。
具体实施方式
下面结合附图对本发明作进一步详述。
本发明的汽车音响系统包括分别安装在汽车1内车内空间7中的对应膜组低音箱2和中高音扬声器3，其中对应膜组低音箱2为至少一个(可为1～6个)，中高音扬声器3为至少一个(可为2～20个)，每个中高音扬声器3可以由1～2只中高音扬声器单元组成，如果是1只时，为全频扬声器单元，如果是2只时，一只为全频扬声器单元，另一只为高音扬声器单元。
每个对应膜组低音箱2包括至少一个低音扬声器4和至少一组低音辐射器组5，该低音扬声器4及低音辐射器组5分别内置于对应膜组低音箱2的箱壁上。低音扬声器4的单元口径为3英寸～4.5英寸，包括至少一只低音扬声器单元(可为1～4只)；低音辐射器组5可为1～4组，每组两只低音辐射器单元，该两只低音辐射器单元前后对应设置、分别安装在对应膜组低音箱体2的箱壁上，两只低音辐射器单元的安装平面与低音扬声器4的安装平面共面、平行、垂直或倾斜设置。低音扬声器4由相同的低音扬声器单元组成，这些低音扬声器单元对称设 置；所有的低音扬声器单元均安装在对应膜组低音箱2的同一箱壁上，且均为电声同相连接。
各低音辐射器组5中的所有低音辐射器单元均相同，且所有低音辐射器单元安装的对应膜组低音箱的箱壁平行或共面，每组低音辐射器组5中的两只低音辐射器单元对称安装在相互平行的对应膜组低音箱2的两箱壁上。低音扬声器4和低音辐射器组5设置时，低音扬声器4的低音扬声器单元的振动部件[如振膜或折环(又称橡皮边、泡沫边等)]的最高点与低音辐射器组5的低音辐射器单元的振动部件[如振膜或折环(又称橡皮边、泡沫边等)]的最高点在同一平面上。对应膜组低音箱2的最小容积随低音扬声器4的振膜面积不同而变化，例如一只直径92mm、圆锥形3.5英寸低音扬声器单元所需的最小容积是1升，最佳容积是1.3升，因为1.3升后再增加容积低音效果不再增加，减少时低音效果会急剧下降，对于一只圆锥形低音扬声器单元所需最小容积是：3英寸为0.4升、3.5英寸为1升、4英寸为2升、4.5英寸为4升。单只椭圆形低音扬声器单元的所需最小容积按其振膜面积参照振膜面积相似的圆锥形低音扬声器单元。对应膜组低音箱2的最佳容积随低音扬声器4的低音扬声器单元的数量线性改变，即R＝C×N，其中R为对应膜组低音箱2的最佳容积，C为一只低音扬声器单元的对应膜组低音箱2的最佳容积，N为低音扬声器4的低音扬声器单元的只数。
每组低音辐射器组5的两只低音辐射器单元，一前一后对应设置，这两只低音辐射器单元振膜平面平行，它们之间的距离小于低音扬声器4的单个低音扬声器单元的直径。每个对应膜组低音箱2中的低音扬声器4的低音扬声器单元为至少一只(可为1～4只)，可以是圆锥形低音扬声器单元，也可以是椭圆形的低音扬声器单元。圆锥形低音扬声器单元的口径为3英寸～4.5英寸，口径太大不但低音箱体积太大，不易在车内设置，且低音效果也不好，还增加成本；太小了低音扬声器单元数量要增加，不但成本增加，低音效果也不佳，制造工艺也会复杂。其中以3.5英寸直径92mm的圆形低音扬声器单元为最佳选择。
这样，对应膜组低音箱2就自成一体、成为超小体积超薄低音箱，其容积只有传统低音箱的十分之一。对应膜组低音箱2就非常容易地设置在汽车1内，其可以设置在汽车1内的位置位于前左车厢门8上、前右车厢门9上、后左车厢门12上、后右车厢门13上、后窗平台14上、后备厢15内、正驾驶座椅16下部或副驾驶座椅17下部中的一处或一处以上的任何可以安放的地方。对应膜组低音箱2可以是一个，也可以是多个，同时也可在汽车1内混合设置，如一些设置在正、副驾驶座椅16、17下，另一些设置在后窗平台14上；或有一些设置在四个车厢门上，另一些设置在正、副驾驶座椅16、17下，或另一些设置在后窗平台14上，或另一些设置后备厢15内。
中高音扬声器3可以直接安装在汽车1内的各相应位置，如安装于汽车1内的位置位于前左车厢门8的上部、前右车厢门9的上部、后左车厢门12的上部、 后右车厢门13的上部、左A柱10上、右A柱11上、后窗平台14或仪表台18上中的一处或一处以上。也可以将高音扬声器3的中高音扬声器单元先安装在中高音音箱6内，再将中高音音箱6设置在汽车1内的相应位置。中高音音箱6可以是封闭箱，也可以是开口箱(即箱体上设有开口)。中高音扬声器3可以设置在前左、右车厢门8、9和后左右车厢门12、13的上部，安装位置要尽量靠近上部，这样听音效果最好，也可以设置在汽车1的左、右A柱10、11上，也可以设置在后窗平台14上或仪表台18上，同时也可以混合设置等。另外，可以在汽车1的仪表台18上设置一个中高音扬声器3，作为中置扬声器和前置左右扬声器和环绕左右扬声器及对应膜组低音箱2在车内空间7内形成5.1或7.1家庭影院系统。
对应膜组低音箱2通过安装在汽车1内的汽车影音播放机19的单独一路低音炮功率输出驱动，该汽车影音播放机19为“2.1”、“4.1”、“5.1”或“7.1”系统，其中“2”、“4”、“5”和“7”的各路功率输出连接相应的所述中高音扬声器3，“.1”低音功率输出连接所述对应膜组低音箱2。
实施例一
如图1、图10A及图10B所示，本实施例的对应膜组低音箱2为长方体形状，在对应膜组低音箱2内设置一个低音扬声器4，安装在对应膜组低音箱2的前箱壁上：低音扬声器4可以由一只低音扬声器单元组成，也可以是多只，每个低音扬声器单元可以是圆形的，也可以是椭圆形的，最好用圆锥形低音扬声器单元，口径为3英寸～4.5英寸；本实施例为每个低音扬声器4内安装了一只直径92mm的圆形低音扬声器单元。在对应膜组低音箱2内还设置有一组低音辐射器组5，每组低音辐射器组5由一对(2只)低音辐射器单元组成，每组中的一对低音辐射器单元前后相互对应设置。低音辐射器又称无源被动低频辐射器或被动扬声器还叫空喇叭，其没有磁体和音圈，只有振膜及其支撑装置；它可以是圆形的，也可以是椭圆形的或长方形的，形状可以是平板的也可以是圆锥型的。本实施例用了一组低音辐射器组5，这个低音辐射器组5由两只相同的圆形平板式的低音辐射器单元构成，其尺寸为直径90mm。这两只低音辐射器单元前后对称地安装在对应膜组低音箱2的一端，其中一只低音辐射器单元安装在低音扬声器4同一个对应膜组低音箱体2的箱壁上。
对应膜组低音箱2箱体可以用塑料、金属和木材等制造，可以用开模注塑的方法制造。本实施例对应膜组低音箱2用开模注塑的方法制造，其外形尺寸为185mm长×140mm高×60mm厚。
对应膜组低音箱2制作好后，连同中高音扬声器3就可以安装到汽车1内。本实施例的对应膜组低音箱2为两个，中高音扬声器3为四个；两个对应膜组低音箱2分别设置在前左、右车厢门8、9的下部，安装在车厢门的内外车厢壁形成的容积空间。四个中高音扬声器3为φ38mm～φ77mm的全频扬声器单元，分 别安装在前左、右车厢门8、9和后左右车厢门12、13的上部，设置时要将中高音扬声器3在车厢门的安装位置尽量靠上，这样能得到最好的听音效果。中高音扬声器3也可以设置在左、右A柱10、11上，或设置在后窗平台14及仪表台18上，本实施例用了四只φ45mm的全频扬声器单元，安装在四个车厢门的上部。
实施例二
如图2、图11A及图11B所示，本实施例与实施例一的区别在于：本实施例的对应膜组低音箱2为四个，它们分别设置在前左、右车厢门8、9的下部和后左、右车厢门12、13的下部；另外本实施例的中高音扬声器3为四个，它们分别先安装在中高音箱6上，再将这4个中高音箱6安装到四个车厢门的上部，本实施例的中高音箱6为封闭箱。其余均和实施例一相同。
实施例三
如图3、图13A及图13B所示，本实施例与实施例一的区别在于：本实施例的对应膜组低音箱2为一个，该对应膜组低音箱2中的低音扬声器4为两只低音扬声器单元，低音辐射器组5为两组，每组两只低音辐射器单元；两只低音扬声器单元和两组低音辐射器组呈矩阵式排布，两只低音扬声器单元位于上部，两组低音辐射器组位于下部。本实施例的对应膜组低音箱2设置在后窗平台14的中部。其余均和实施例一相同。
实施例四
如图4、图12A及图12B所示，本实施例与实施例一的区别在于：本实施例的对应膜组低音箱2为一个或两个，每个对应膜组低音箱2中的低音扬声器4均为两只低音扬声器单元，低音辐射器组5为一组，低音辐射器组5位于两只低音扬声器单元中间。本实施例的两只低音辐射器单元为长方形，其外形尺寸为90mm×125mm，对应膜组低音箱2的外形尺寸为300mm×220mm×50mm。当对应膜组低音箱2为两个时，分别设置在正驾驶座椅16和副驾驶座椅17的下方，当对应膜组低音箱2为一个时，设置在正驾驶座椅16或副驾驶座椅17的下方。其余均和实施例一相同。
实施例五
如图5所示，本实施例与实施例一的区别在于：本实施例的中高音扬声器3为两个，分别设置在前左、右车厢门8、9的上部，其余均和实施例一相同。
实施例六
如图6所示，本实施例与实施例二的区别在于本实施例的中高音扬声器3为五个，其中一个作为中置音设置在仪表台18上，形成5.1家庭影院系统，其余均和实施例二相同。
实施例七
如图7所示，本实施例与实施例一的区别在于：本实施例的中高音扬声器3为两个，这两个中高音扬声器3分别设置在左A柱10和右A柱11上。其余均和 实施例一相同。
实施例八
如图8所示，本实施例与实施例一的区别在于：在实施例一中设置在后左、右车厢门12、13的中高音扬声器3改变安装位置、设置在后窗平台14的左端和右端。其余均和实施例一相同。
实施例九
如图9、图14A及图14B所示，本实施例与实施例一的区别在于：本实施例的中高音扬声器3为四个，这四个的中高音扬声器3先分别安装在四个对应膜组低音箱2内，每个对应膜组低音箱2内的中高音扬声器3及低音辐射器组5分别位于低音扬声器4的两侧，再将这四个对应膜组低音箱2设置在前左、右车厢门8、9和后左、右车厢门12、13上。其余均和实施例一相同。
实施例十
如图15所示，本实施例与实施例三的区别在于：本实施例的对应膜组低音箱2设置在汽车1的后备厢15内，中高音扬声器3设置在四个车厢门的上部。其余均和实施例三相同。本实施例可应用于两厢汽车或SUV车。
实施例十一
如图16所示，本实施例的汽车四路功放集成电路20内置在汽车影音播放机19中，其为现有的BTL(桥式推挽电路)输出四路功放，如TDA7388、TDA7850等。本实施例摒弃了通常传统的四路全频音频信号直接输入的方法，而采用两路和传统一样，将两路全频音频信号直接输入到汽车四路功放集成电路的两个输入上，而另两路全频音频信号先输入到低通滤波器21的输入，经低通滤波器21滤波后得到一路合成低频信号再输入给汽车四路功放集成电路20的另两个输入端连接在一起的输入端；汽车四路功放集成电路20输出的两路全频音频功率分别驱动中高音扬声器3，汽车四路功放集成电路20的另两路低频功率输出驱动对应膜组低音箱2或同一个对应膜组低音箱2的不同低音扬声器4的低音扬声器单元。低通滤波器21的截止频率为50～300赫兹，本实施例为120赫兹，本实施例的汽车四路功放集成电路20为TDA7388。
本发明的工作原理为：
当全频音频功率施加于汽车1内的各中高音扬声器3时，中高音扬声器3完成电声转换，将中高音声音辐射到汽车1的车内空间7，由于其口径很小，振膜很小很轻，音圈也很小很轻，这样就能很好地将中高音完成电声转换，产生很好的、清澈响亮、解析力高的中高音；同时，其安装位置在车厢门靠上部，声像定位好，在车内空间得到家庭影院的中高音音效。
当低频音频功率施加于低音扬声器4时，低音扬声器4的振膜产生震动，实现电声转换。由于低音扬声器4所在的对应膜组低音箱2为密闭腔体，当低音扬声器4的振膜向对应膜组低音箱2内方向震动时，就压缩了对应膜组低音箱2内 的空气，这时就会产生弹簧效应，使对应膜组低音箱2内的空气压强大于大气压强，从而驱动低音辐射器组5的相互对应的低音辐射器单元的振膜同时向对应膜组低音箱2外震动。当低音扬声器4的振膜受低音频功率驱动同时向对应膜组低音箱体2外震动时，被压缩的对应膜组低音箱2内的空气弹簧释放，其产生的恢复力助推低音扬声器4的振膜，使对应膜组低音箱2内的压强进一步降低，使对应膜组低音箱2内的压强更加低于大气压强，从而使低音辐射器单元的振膜同时向对应膜组低音箱2内震动，这样不但大幅度增加了低音振膜面积(增加了约2倍左右)，同时使振膜振幅增加，使产生的低音声波得到增强的同时又不依赖箱体容积(传统技术的低音炮的箱体容积一般为20升～50升)。这样用小口径普通3.5英寸的低音扬声器和2.6升的小箱体就能得到震撼的、厚重的、富有弹性的低音了。另外，对应膜组低音箱2是个密闭的箱体，在此对应膜组低音箱2产生的空气弹簧反作用力，使各低音扬声器音圈位移减小，又由多只低音扬声器单元分担音频功率，使音圈位移进一步减少，在增大低音箱功率的同时降低了电声转换失真度。同时由于低音辐射器组5的每组里的一对低音辐射器单元相互对应设置，在实现低频电声转换时，对称振动，振动幅度相等，而振动方向相反，振动力抵消，极大消除了低音箱的机械振动和位移。
本发明降低了低音箱体积的90％，且重量轻，用3.5英寸左右小口径普通低频扬声器和2.6升的小箱体，就能得到8寸以上低音扬声器和大箱体传统技术低音炮的效果，使低音大大增强，并且更加厚重、震撼、下潜更深、失真更小，且成本更低。同时，中高音扬声器3又能产生清晰、响亮的中音和高音，从而使车内空间7整个低、中、高音都能得到很好地还原播放，达到家庭影院的音效；用低于最低端汽车音响系统的成本达到或超过高端汽车音响系统的音质，且工艺更简单，部件减少，制造更容易，体积更小、更薄，更易设计，同时从汽车音响本身和汽车车体制造两个方面降低了汽车整车成本。

Claims (11)

  1. 一种汽车音响系统，其特征在于：包括分别安装在汽车(1)内的对应膜组低音箱(2)和中高音扬声器(3)，其中对应膜组低音箱(2)为至少一个，每个所述对应膜组低音箱(2)包括至少一个低音扬声器(4)和至少一组低音辐射器组(5)，该低音扬声器(4)及低音辐射器组(5)分别内置于所述对应膜组低音箱(2)的箱壁上，每组低音辐射器组(5)中的两只低音辐射器单元前后对应设置，分别安装在所述对应膜组低音箱(2)的箱壁上，且两只低音辐射器单元的安装平面与所述低音扬声器(4)的安装平面共面、平行、垂直或倾斜设置；所述中高音扬声器(3)为至少一个，每个所述中高音扬声器(3)内设置1～2只扬声器单元，当中高音扬声器(3)内设置1只扬声器单元时，该扬声器单元为全频扬声器单元，当中高音扬声器(3)内设置2只扬声器单元时，一只扬声器单元为全频扬声器单元、另一只为高音扬声器单元。
  2. 根据权利要求1所述的汽车音响系统，其特征在于：所述对应膜组低音箱(2)安装于汽车(1)内的位置位于前左车厢门(8)上、前右车厢门(9)上、后左车厢门(12)上、后右车厢门(13)上、后窗平台(14)上、后备厢(15)内、正驾驶座椅(16)下方或副驾驶座椅(17)下方中的一处或一处以上。
  3. 根据权利要求1所述的汽车音响系统，其特征在于：所述中高音扬声器(3)安装于汽车(1)内的位置位于前左车厢门(8)的上部、前右车厢门(9)的上部、后左车厢门(12)的上部、后右车厢门(13)的上部、左A柱(10)上、右A柱(11)上、后窗平台(14)或仪表台(18)上中的一处或一处以上。
  4. 根据权利要求1所述的汽车音响系统，其特征在于：所述中高音扬声器(3)安装在中高音音箱(6)内，该中高音音箱(6)安装于所述汽车(1)的内部。
  5. 根据权利要求4所述的汽车音响系统，其特征在于：所述中高音音箱(6)为封闭箱体、或为开口箱体，安装在对应膜组低音箱(2)的箱体内。
  6. 根据权利要求1所述的汽车音响系统，其特征在于：所述中高音扬声器(3)安装在对应膜组低音箱(2)的箱体内。
  7. 根据权利要求1所述的汽车音响系统，其特征在于：每组所述低音辐射器组(5)中的两只低音辐射器单元振膜平面之间的距离小于所述低音扬声器(4)中单个低音扬声器单元的直径。
  8. 根据权利要求7所述的汽车音响系统，其特征在于：每组所述低音辐射器组(5)中的两只低音辐射器单元的振膜平面相互平行。
  9. 根据权利要求1所述的汽车音响系统，其特征在于：每个所述低音扬声器(4)中的低音扬声器单元的振动部件的最高点与每组所述低音辐射器组(5)中的两只低音辐射器单元的振动部件的最高点在同一水平面上。
  10. 根据权利要求1所述的汽车音响系统，其特征在于：所述对应膜组低音箱(2)通过安装在汽车(1)内的汽车影音播放机(19)的单独一路低音炮功率输出驱动，该汽车影音播放机(19)为“2.1”、“4.1”、“5.1”或“7.1”系统，其中“2”、“4”、“5”和“7”的各路全频功率输出分别连接相应的各所述中高音扬声器(3)，“.1”低音功率输出连接所述对应膜组低音箱(2)。
  11. 根据权利要求1所述的汽车音响系统，其特征在于：所述汽车音响系统还包括汽车影音播放机(19)，该汽车影音播放机(19)中设有汽车四路功放集成电路(20)，当汽车四路功放集成电路(20)为四路BTL功放时，四路音频信号输入中的两路仍然保持原全频音频信号输入不变，这两路全频音频功率输出分别连接所述中高音扬声器(3)；另两路全频音频输入信号先输入低通滤波器(21)，低通滤波器(21)输出的一路合成低频音频信号再输入给汽车四路功放集成电路(20)的另两路输入连接在一起的输入端，这两路低频功率输出分别连接不同的所述对应膜组低音箱(2)或同一个对应膜组低音箱(2)内的不同低音扬声器(4)。
PCT/CN2018/086499 2017-05-15 2018-05-11 一种汽车音响系统 WO2018210185A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710339813.7 2017-05-15
CN201710339813.7A CN108859988A (zh) 2017-05-15 2017-05-15 一种汽车音响系统

Publications (1)

Publication Number Publication Date
WO2018210185A1 true WO2018210185A1 (zh) 2018-11-22

Family

ID=64273971

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/086499 WO2018210185A1 (zh) 2017-05-15 2018-05-11 一种汽车音响系统

Country Status (2)

Country Link
CN (1) CN108859988A (zh)
WO (1) WO2018210185A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111328001A (zh) * 2018-12-14 2020-06-23 深圳纽斯声学系统有限公司 一种基于车门低音炮的汽车音响系统
CN111327992A (zh) * 2018-12-14 2020-06-23 深圳纽斯声学系统有限公司 一种汽车门低音炮

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100092006A1 (en) * 2008-10-10 2010-04-15 Rosen Michael D Ducting Sound
US8837763B1 (en) * 2011-06-21 2014-09-16 Cue Acoustics, Inc. Inertially balanced miniature low frequency speaker system
CN205408091U (zh) * 2016-03-03 2016-07-27 无锡杰夫电声股份有限公司 镜像式低频辐射器条形音箱
CN105848041A (zh) * 2015-01-13 2016-08-10 深圳纽斯声学系统有限公司 一种对应膜组音箱及内置该音箱的电视机
CN205847488U (zh) * 2016-07-13 2016-12-28 微鲸科技有限公司 音箱以及电视机
CN206765940U (zh) * 2017-05-15 2017-12-19 深圳纽斯声学系统有限公司 汽车音响系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201887932U (zh) * 2010-12-20 2011-06-29 安徽江淮汽车股份有限公司 汽车音响系统
CN205545848U (zh) * 2016-02-04 2016-08-31 深圳纽斯声学系统有限公司 一体式对应膜共振条形音箱

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100092006A1 (en) * 2008-10-10 2010-04-15 Rosen Michael D Ducting Sound
US8837763B1 (en) * 2011-06-21 2014-09-16 Cue Acoustics, Inc. Inertially balanced miniature low frequency speaker system
CN105848041A (zh) * 2015-01-13 2016-08-10 深圳纽斯声学系统有限公司 一种对应膜组音箱及内置该音箱的电视机
CN205408091U (zh) * 2016-03-03 2016-07-27 无锡杰夫电声股份有限公司 镜像式低频辐射器条形音箱
CN205847488U (zh) * 2016-07-13 2016-12-28 微鲸科技有限公司 音箱以及电视机
CN206765940U (zh) * 2017-05-15 2017-12-19 深圳纽斯声学系统有限公司 汽车音响系统

Also Published As

Publication number Publication date
CN108859988A (zh) 2018-11-23

Similar Documents

Publication Publication Date Title
CN210225743U (zh) 单磁双音路同轴扬声器
US6389146B1 (en) Acoustically asymmetric bandpass loudspeaker with multiple acoustic filters
JP2673002B2 (ja) スピーカシステム
CN102396243B (zh) 扩音器
US3976838A (en) High fidelity sound reproduction system
JP3266401B2 (ja) 複合型スピーカ装置及びその駆動方法
US6169811B1 (en) Bandpass loudspeaker system
US20020061114A1 (en) Bandpass woofer enclosure with multiple acoustic filters
WO2018171440A1 (zh) 一种单腔体三明治式汽车低音炮
CN205545848U (zh) 一体式对应膜共振条形音箱
US11076220B2 (en) Loudspeaker system
WO2018210185A1 (zh) 一种汽车音响系统
US20010031061A1 (en) Speaker apparatus with dual compartment enclosure and internal passive radiator
US10667039B2 (en) Acoustic device having an electro-acoustic transducer mounted to a passive radiator diaphragm
CN215204705U (zh) 一种车辆用扬声机构及车辆
CN206765940U (zh) 汽车音响系统
WO2021000086A1 (zh) 一种基于微型扬声器的车内独立声场系统及控制系统
CN203057482U (zh) 主动双膜共振一体式2.1音箱
CN206585759U (zh) 单腔体三明治式汽车低音炮
US20080056516A1 (en) Compact open baffle speaker system
CN210183541U (zh) 一种多发声单元组合结构
JPH02301395A (ja) スピーカシステム
CN113173132A (zh) 一种用于车辆的扬声器装置及车辆
JPH03147498A (ja) スピーカシステム
CN206835350U (zh) 基于对称平衡低音箱的汽车音响系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18802562

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18802562

Country of ref document: EP

Kind code of ref document: A1