CN209120474U - Car audio system based on car door subwoofer - Google Patents

Abstract

The utility model relates to a kind of car audio systems based on car door subwoofer, including car door subwoofer, medium and high pitch loudspeaker and the radio reception player being separately mounted in automobile, the forward and backward cabinet of car door subwoofer is independent closed case, it is connected between preceding cabinet and rear box by curve trunnion, the position that the position and curve trunnion that curve trunnion is connected to preceding cabinet are connected to rear box tilts；Active woofer is installed on the preceding tank wall of preceding cabinet, passive woofer is equipped in rear box, passive woofer is one or is arranged in pairs, when for one, it is mounted on the preceding tank wall or rear box wall of rear box, one of the correspondence when being arranged in pairs, every centering is installed on the tank wall of the rear box, before the another of every centering is installed on the tank wall of rear box or is mounted on the tank wall of cabinet.The utility model increases substantially the sound quality of car audio system, and cost is greatly lowered 70%.

Description

Car audio system based on car door subwoofer

Technical field

The utility model relates to car audio system, specifically a kind of automobile audio system based on car door subwoofer System.

Background technique

With scientific and technological progress, automobile car networking and automotive electronic technology are developed rapidly, sound of the people to automobile audio Matter requirement is higher and higher, rather than has sound just.Current automobile audio technology, especially electroacoustic are converted, and are to have continued to use 50 The obsolete techniques of many years.Especially automobile bass technology is badly in need of innovation and is improved, in the case where realizing crawl space in the car, With small diameter loudspeaker (such as 3.5 inch) and low capacity cabinet (such as 1.3 liters), and the bass that low cost has been made；It also to allow simultaneously 4.0 system upgrades of global 80% auto-loading sound system are accounted for 4.1 household audio and video systems with subwoofer, then cooperate improvement Small-bore included cabinet 4 sound channel of Hi-Mid electroacoustic conversion, automobile audio is realized in the case where cost is greatly lowered Sound qualitative leap.Currently, the automobile bass of the prior art is following four structure:

1. the woofer of 4 6.5 inch or so is separately positioned on the lower part of 4 car doors by four car door basses, benefit The volume formed with the outer wall and inner wall steel plate of car door is as bass cabinet；Such car audio system is 4.0 systems, Drawback is to cannot achieve closed due to gas leakage, can only be acoustics baffle at most so that real bass cabinet cannot be formed, Bass effect is poor, at high cost.This scheme accounts for before Global Auto sound equipment 80% filled.

2. integrated car subwoofer, by one or two 4 inch~12 inch woofers setting one by plastic cement or On 20 liters~40 liters of volume cabinet made of timber, drawback is that volume is big, and difficulty is put in setting in the car, at high cost.

3. the ultra-thin woofer of 6.5 inch~8 inch is mounted on car body and uses steel by bodied vehicle subwoofer On 10 liters~20 liters of the cabinet that plate surrounds, drawback is that occupancy vehicle body space is big, and production production technology is complicated, at high cost.

4. standby luggage compartment automobile subwoofer exists 1~3 8 inch~12 inch or the ultra-thin woofer setting of 8 × 12 inch On the rear window platform that compartment and back in-support carriage are kept apart, subwoofer cabinet is made using 500 liters of standby luggage compartment or so of volume, Drawback is that standby luggage compartment volume is too big, is 500 liters or so, cannot reach the requirement of bass box, and cannot seal, gas leakage, only It can play the role of acoustics electroacoustic baffle, it is at high cost.

Utility model content

In order to solve the above problem existing for existing automobile audio, the purpose of this utility model is to provide one kind to be based on vehicle The car audio system of door subwoofer.The car audio system based on car door subwoofer is 4.1 or 5.1 families with subwoofer Cinema system is positioned only at the interior small diameter loudspeaker by top with 4 and completes the conversion of Hi-Mid electroacoustic, is arranged with 1~4 Bass electroacoustical conversion is completed in 1.3 liters or so car door subwoofers of 4 bottom of door.

The purpose of this utility model is achieved through the following technical solutions:

The utility model includes the car door subwoofer being separately mounted in automobile, medium and high pitch loudspeaker and radio reception player, Wherein car door subwoofer includes preceding cabinet, rear box, curve trunnion, active woofer and passive woofer, wherein Preceding cabinet and rear box are independent closed case, are connected between the preceding cabinet and rear box by the curve trunnion, Realize the conducting of information stream, what the position and curve trunnion which is connected to the preceding cabinet were connected to the rear box Position tilts, i.e., between the position that the described curve trunnion position being connected to preceding cabinet and curve trunnion are connected to rear box There is the position turned round on curve trunnion；It is equipped with active woofer in the preceding cabinet, active woofer peace On the preceding tank wall of the preceding cabinet；Passive woofer is equipped in the rear box, which is It one or is arranged in pairs, when the passive woofer is one, is mounted on the preceding tank wall or rear box wall of the rear box On, the correspondence when the passive woofer is to be arranged in pairs, one of every centering is passive, and woofer is respectively mounted On the tank wall of the rear box, the passive woofer of the another of every centering be installed on the tank wall of the rear box or It is mounted on the tank wall of the preceding cabinet；

Wherein: the medium and high pitch loudspeaker is installed in closed case or opening box body, forms Hi-Mid speaker, height in this Sound box with sound is installed on each channel locations in automobile；

The side of preceding cabinet towards the rear box extends outwardly, forms installation hole edge, one end of the curve trunnion With the installation hole along being connected, the other end is connected to the rear box, the external surface shape and car door on the installation hole edge The shape that woofer installs steel plate hole is identical, and the perimeter on the installation hole edge is less than car door woofer and installs steel The perimeter of plate holes；

The perimeter of the rear box is less than or equal to the perimeter of preceding cabinet, and the outer of the rear box is outer with the preceding cabinet Along outer that is coplanar, or protruding from preceding cabinet；

The vibrating diaphragm area of the passive woofer and greater than the active woofer vibrating diaphragm area and；

The mounting plane of the passive woofer is parallel or coplanar with the mounting plane of active woofer；

The passive woofer is the tank wall that the passive woofer of two of every centering is installed when being arranged in pairs Identical, i.e., two of every centering are passive, and woofer is separately mounted on the preceding tank wall and rear box wall of the rear box；Or Person, one of every centering is passive, and woofer is installed on the tank wall for the preceding cabinet that the active woofer is in, The passive woofer of the another of every centering is installed on the tank wall of the rear box；

When the passive woofer is one, it is mounted on leaning on the nearby preceding tank wall of cabinet for the rear box；

The car door subwoofer is one~tetra-, is separately positioned on the bottom of door of automobile；The medium and high pitch loudspeaker is extremely Less it is two, is respectively arranged on the car door in automobile, or is separately positioned on left A column, on right A column, or be separately positioned on preceding instrument The left and right both ends of table platform, or it is separately positioned on the left and right both ends of rear window platform；The radio reception player is set to preceding instrument desk Middle part；

When the car door subwoofer is one, it is mounted on the lower part of the right front door of the automobile；When the Hi-Mid is raised Sound device is arranged when on car door, is separately positioned on the top of the car door.

The advantages of the utility model and good effect are as follows:

1. the utility model with 4.1 household audio and video systems substitute traditional technology account for before automobile audio fill 80% 4.0 systems System makes the speaker system cost of economy class automobile reduce by 70% in the case where significantly promoting vehicle sound quality；Meanwhile it receiving Sound player cost also reduces, and abandons big aluminium radiator fin.

2. the front-seat left and right sound channels of the utility model, heel row left and right sound channels are by 1.25 inch~3 inch medium and high pitch loudspeaker It is mounted on cabinet, forms Hi-Mid speaker and top in the car is set again, such as the top of car door, left and right A column, preceding instrument desk is left, Electroacoustic conversion is completed at right both ends, and middle pitch sounding is its advantage, thus overcomes the middle pitch of traditional 4.0 systems by a 6.5 inch left side Right woofer is completed electroacoustic and is converted, and the drawback that the middle pitch of the woofer of 6.5 inch or so is bad, because 6.5 inch are left Right woofer is good in a low voice, middle beat.And since middle pitch is issued by the 6.5 inch woofers for being located at underfooting, and in Sound has had very highly directive, causes Sound image localization bad in this way, and just as singer sings in occupant underfooting, sound field characteristic is not It is good.And the middle pitch of the utility model is issued by the Hi-Mid speaker for being located at interior top, thus acoustic image is had good positioning, sound field characteristic It is good.

3. the medium and high pitch loudspeaker of the utility model can issue the high pitch of 20KHZ very well, 4 basses of traditional technology are raised 2 tweeter system of sound device, overcomes the drawbacks of heel row is without high pitch；For 4 woofers without tweeter system gram Taken forward and backward row without high pitch the drawbacks of.

4. the car door subwoofer of the utility model is set as unique forward and backward cabinet and curve trunnion H-shaped structure, total measurement (volume) Only 1.3 liters or so, can easily 6.5 inch of car door of direct replacement traditional technology or so woofer, can fit very well For the labyrinth of each different automobile types car door, and do not interfere with the other component in the car doors such as elevating glass.

5. corresponding passive woofer resonance is utilized in the utility model, information stream air spring is made in subwoofer cabinet With and the external car door internal volume of bass box secondary bass boost and occupant's foot storehouse bass boost effect, obtain perfect, shock Pure bass.

6. the utility model uses corresponding passive woofer setting, this pair of passive bass loudspeaker when electroacoustic is converted Device diaphragm oscillations are contrary, and Oscillation Amplitude is equal, and vibration force is offset, and drastically reduce the mechanical oscillation of cabinet, thus Reduce car door vibration, improves the life and reliability of car door.

7. the car door subwoofer of the utility model uses the small-bore woofer of 3.5 inch, and only low with a car door The bass effect that sound big gun is obtained with 6.5 inch woofers of than 4 traditional technology bottom of door setting is more preferable, and at Originally 75% is reduced.

8. the utility model reduces the occupied space of automobile woofer in the car, increase available space in compartment Add.

9. the utility model reduces vehicle component, entire vehicle design manufacture producting process difficulty is reduced.

10. the car door subwoofer of the utility model is integral type plastic box body, medium and high pitch loudspeaker is mounted on independent plastic cement In cabinet, have a style of one's own, loudspeaker unit made to obtain additional protection, can extend loudspeaker service life, more waterproof and It is less damaged.

11. the utility model uses car door subwoofer for active subwoofer, built-in D type digital power amplifier, and this active bass The audio signal and power supply of big gun are taken from in car door, by rear increased connector assembly of the connecting with cable, access former vehicle car door It is obtained between glass elevating control connector assembly, does not have to broken line, do not have to welding, without any in addition increased cable and put in the car The rear dress upgrading that automobile audio is completed in the case where big device, speaker etc., maintains former vehicle as former state, and car owner oneself DIY It completes, the cost that automobile audio is filled after a full set of is very low.

12. the utility model reduces the 70% of auto loud hailer system weight, realizing reduces car door weight and vehicle weight Amount.

13. 4.1 power amplifiers of the radio reception player of the utility model are greater than 90% D type digital power amplifier core using transfer efficiency Piece makes car audio system power consumption reduce by 70%, is more suitable for new-energy automobile.

Detailed description of the invention

Figure 1A is that the utility model embodiment one is installed on the structural schematic diagram on automobile；

Figure 1B is the structure sectional view of one car door subwoofer of the utility model embodiment；

Fig. 1 C is the stereochemical structure cross-sectional view of one car door subwoofer of the utility model embodiment；

Fig. 1 D is the structure sectional view of one Hi-Mid speaker of the utility model embodiment；

Fig. 1 E is the bottom view of Fig. 1 D；

Fig. 2A is that the utility model embodiment two is installed on the structural schematic diagram on automobile；

Fig. 2 B is the structure sectional view of two car door subwoofer of the utility model embodiment；

Fig. 2 C is the stereochemical structure cross-sectional view of two car door subwoofer of the utility model embodiment；

Fig. 2 D is the structure sectional view of two Hi-Mid speaker of the utility model embodiment；

Fig. 2 E is the bottom view of Fig. 2 D；

Fig. 3 A is that the utility model embodiment three is installed on the structural schematic diagram on automobile；

Fig. 3 B is the structure sectional view of three car door subwoofer of the utility model embodiment；

Fig. 3 C is the stereochemical structure cross-sectional view of three car door subwoofer of the utility model embodiment；

Fig. 3 D is the structure sectional view of three medium and high pitch loudspeaker of the utility model embodiment；

Fig. 3 E is the bottom view of Fig. 3 D；

Fig. 4 A is that the utility model embodiment four is installed on the structural schematic diagram on automobile；

Fig. 4 B is the structure sectional view of four car door subwoofer of the utility model embodiment；

Fig. 4 C is the stereochemical structure cross-sectional view of four car door subwoofer of the utility model embodiment；

Fig. 4 D is the structure sectional view of four Hi-Mid speaker of the utility model embodiment；

Fig. 4 E is the bottom view of Fig. 4 D；

Wherein: 1 is automobile, and 2 be car door subwoofer, and 3 be Hi-Mid speaker, and 4 be radio reception player, and 5 be preceding cabinet, and 6 are Rear box, 7 be curve trunnion, and 8 be active woofer, and 9 be passive woofer, and 10 be installation hole edge, and 11 are High pitch loudspeaker, 12 be screw hole.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing.

The utility model includes that the car door subwoofer 2 being separately mounted in automobile 1, medium and high pitch loudspeaker 11 and radio reception play Machine 4, car door subwoofer 2 are one~tetra-, and the bottom of door of automobile 1 is arranged in；When car door subwoofer 2 is one, it is mounted on The lower part of the right front door of automobile 1.Medium and high pitch loudspeaker 11 is at least two, is respectively arranged on the car door in automobile 1, or point She Zhi not be on left A column, right A column, or the left and right both ends of preceding instrument desk are separately positioned on, or be separately positioned on rear window platform Left and right both ends；When medium and high pitch loudspeaker 11 is arranged on car door, the top of car door is set as far as possible.Radio reception player 4 is arranged In the middle part of preceding instrument desk.

Radio reception player 4 is set in the instrument desk of automobile 1.When the utility model is used for auto-loading, radio reception is played Machine 4 is 4.1 audio full range power outputs, i.e. the output of front left and right sound channel and the output of rear left and right sound channel, additional subwoofer all the way is defeated Out.4.1 power amplifier chips of radio reception player 4 use D type digital power amplifier chip, high conversion efficiency (more than 90%), and current The transfer efficiency of general A/B class power amplifier is less than 30%, and cost is also lower than A/B class power amplifier；Meanwhile big aluminium radiator fin is abandoned, Further reduce vehicle device cost.The output of front left and right sound channel and the output of rear left and right sound channel of radio reception player 4 are separately connected Front left and right and rear left and right sound channel medium and high pitch loudspeaker 11；The other subwoofer power output all the way of radio reception player 4 connects vehicle Door subwoofer 2.When the utility model after automobile for filling, the radio reception player 4 original-pack using former vehicle is still proceeded with, it is general For 4.0 systems, i.e. only 4 road full range power output of front left and right sound channel and rear left and right sound channel；Its front left and right and rear left and right sound Road output is separately connected front left and right and rear left and right medium and high pitch loudspeaker 11, and then dress newly increases 1~4 active bass of car door Big gun, this active subwoofer are exactly built-in one piece of subwoofer power board, this block subwoofer power amplifier in the cabinet of car door subwoofer 2 The power amplifier chips of plate are D type digital power amplifier integrated circuits；The DC power supply of this power board is derived from the glass for vehicle window liter in car door On the connector of drop and the control circuit of door switch；Namely by increasing a patchplug with line and socket series connection in original Mode obtains between vehicle automobile door glass elevating control bus plug and socket, reaches and does not have to broken line and weld and can fast implement； The plug of former vehicle is pulled out from socket namely, the plug and socket with transition connection wiring harness will be separately done and is separately connected The plug and socket of former vehicle, in this way this transition connection wiring harness are just connected between original former socket and plug；This mistake The plug and socket line for crossing connection wiring harness corresponds, such as the 5th needle of the 5th needle connection plug of socket；Connect in this transition When the plug or socket of wiring beam make line, as soon as ground wire needle and+12V needle are each to do a connecting line more, become active car door bass The DC power supply of big gun.The input audio signal of power board is taken from the 4 road full range audio powers output of former vehicle radio reception player 4 It is connected on the high level plug of connection 6.5 inch woofer of former vehicle of each car door.

The medium and high pitch loudspeaker 11 of the utility model is preferably mounted in a cabinet, formed Hi-Mid speaker 3, then will in High-pitched sound box 3 is respectively installed to the top of four car doors in automobile 1, or is respectively installed to left A column, on right A column, or pacify respectively The left and right both ends of instrument desk before being attached to, or it is respectively installed to the left and right both ends of rear window platform.The installation of Hi-Mid speaker 3 will be as far as possible It is top, as close as possible to the ear plane of occupant.This cabinet can be closed box and be also possible to opening box.

Car door subwoofer 2 is mounted on the lower part of four car doors, when installing one, is mounted on front right bottom of door, in this way Main driving position bass effect is best, and front left and right bottom of door is separately mounted to when installing two, and such bass effect is good, because It is them respectively close to the foot storehouse of main driving and copilot.

The car door subwoofer of the utility model include preceding cabinet 5, rear box 6, curve trunnion 7, active woofer 8 and Passive woofer 9, wherein preceding cabinet 5 and rear box 6 are independent closed case, between the preceding cabinet 5 and rear box 6 It is connected by curve trunnion 7, realizes the conducting of information stream, the position and curve trunnion which is connected to preceding cabinet 5 7 positions being connected to rear box 6 tilt, i.e. the position that is connected to preceding cabinet 5 of curve trunnion 7 and curve trunnion 7 and rear box 6 There is the position turned round on curve trunnion 7 between the position of connection.It is equipped with active woofer 8 in preceding cabinet 5, the master Before dynamic woofer 8 is mounted on the preceding tank wall of cabinet 5.Passive woofer 9 is equipped in rear box 6, this is passive low Sound loudspeaker 9 is one or to be arranged in pairs, when passive woofer 9 is one, be mounted on rear box 6 preceding tank wall or after On tank wall；The correspondence when passive woofer 9 is to be arranged in pairs, one of every centering is passive, and woofer 9 is pacified On the tank wall of rear box 6, the passive woofer 9 of the another of every centering is installed on the tank wall of rear box 6 or pacifies On the tank wall of preceding cabinet 5.Multiple screw holes 12 are along the circumferential direction uniformly provided on preceding 5 outer of cabinet, are used for automobile Door subwoofer is fixed on car door.

The side of preceding cabinet 5 towards rear box 6 extends outwardly, forms installation hole along 10, one end of curve trunnion 7 and peace Dress hole is connected along 10, and the other end is connected to rear box 6.External surface shape and car door bass loudspeaker of the installation hole along 10 The shape that device installs steel plate hole is identical, and is less than the car door woofer and installs steel plate hole.

The perimeter of rear box 6 is less than or equal to the perimeter of preceding cabinet 5, and the outer of the rear box 6 and the outer of preceding cabinet 5 are total Face, or protrude from the outer of preceding cabinet 5.

The mounting plane of passive woofer 9 is parallel or coplanar with the mounting plane of active woofer 8.It is passive low The vibrating diaphragm area of sound loudspeaker 9 and be greater than all vibrating diaphragm areas of active woofer 8 and.

When the active woofer 8 of the utility model is 3.5 inch, the appearance of preceding cabinet 5, rear box 6 and curve trunnion 7 The sum of product is 1.3 liters or so, this volume is directly proportional to the vibrating diaphragm area of active woofer 8.It is low due to orthodox car 1 Sound loudspeaker is generally 6.5 inch or so, and four car doors are made to measure for the installation of this four 6.5 inch woofers. Although 1.3 liters of subwoofer volumes of the utility model very little, remain difficult to realize car door bass not changing automobile door structure The original 6.5 inch woofer of big gun direct replacement.Therefore, cabinet 5 before the cabinet of the car door subwoofer 1 of the utility model is divided into With rear box 6, and they pass through 7 realization sound airflow of curve trunnion；The entirety of the utility model is in alphabetical " h " shape, preceding case Body 5 is located at the outside of former 6.5 inch woofer of car door installation steel plate, and rear box 6 is located at former 6.5 inch woofer of car door peace The inside of cartridge plate thus can dexterously design car door subwoofer 2 according to different automobile door structures very much, direct to realize Displacement.

Embodiment one

As shown in Figure 1A~1D, in the automobile 1 of the present embodiment, it is provided with car door subwoofer 2, medium and high pitch loudspeaker 11 and receives One~tetra- car door subwoofer 2 can be set in sound player 4 in an automobile 1, these car door subwoofers are separately positioned on four The lower part of a car door, and the woofer of 6.5 inch of car door of direct replacement automobile traditional technology or so, four car doors, 6.5 inch Woofer scheme fills the 80% of market before accounting for the whole world.The present embodiment is a car door subwoofer 2, is arranged in front right car door Lower part because in this way main driving obtain bass effect it is best.In an automobile 1, four Hi-Mids are usually set and are raised Sound device 11, i.e. front left and right sound channel medium and high pitch loudspeaker and rear left and right sound channel medium and high pitch loudspeaker become 4.1 systems in this way, It is center loudspeaker that a medium and high pitch loudspeaker can separately be added on this basis, becomes 5.1 systems in this way.Medium and high pitch loudspeaker is Full frequency speaker, but its main task is Hi-Mid, and bass is completed by car door subwoofer 2.Medium and high pitch loudspeaker is 1.25 inch~4 The full frequency speaker of inch, a sound channel can be made of a full frequency speaker unit, can also be by a full frequency speaker list Member and a high pitch loudspeaker unit composition；The medium and high pitch loudspeaker 11 of the present embodiment is four 1.5 inch full frequency speaker lists Member, and be all mounted in respective cabinet, become Hi-Mid speaker 3；This cabinet can be closed case and be also possible to out Mouth case, the present embodiment is closed case, this four Hi-Mid speakers 3 are separately positioned in automobile 1 and lean on top, i.e., are leaned on as far as possible The top in four car doors or the arranged on left and right sides of left A column, right A column or preceding instrument desk can be set in nearly occupant's ear plane, Or the arranged on left and right sides of rear window platform；The top of four car doors is arranged in the present embodiment.Radio reception player 4 is also known as vehicle device, and setting exists In the middle part of instrument desk in automobile 1, station broadcast can be not only listened to, also can play CD, USB, AUX, bluetooth song, video And navigation.Radio reception player generally has the output of 4.0 audio powers, i.e. output front left right channel and rear left and right acoustic channels, this four sound Road is separately connected front left and right and rear left and right medium and high pitch loudspeaker 11.In connection, the nothing for the large capacity that can be connected with every sound channel Polar capacitor；The present embodiment is the non-polar condenser of 100 microfarads.In this way, low frequency power is prevented to enter medium and high pitch loudspeaker 11, it is possible to reduce electroacoustic slewing distortion, Hi-Mid is purer and improves the receiving power of medium and high pitch loudspeaker 11, experiments have shown that can To improve 8 times or more, that is, the full frequency speaker of usual power 2W, after concatenating 100 F capacitors, bearing power can be big In 16W.Radio reception player 4 is also possible to the output of 4.1 audio powers, i.e., on the basis of front left and right sound channel, rear left and right sound channel, again Multi output subwoofer power output all the way, this road subwoofer output power are greater than the defeated of front left and right sound channel and rear left and right sound channel Power and this road subwoofer output connection car door subwoofer out；The radio reception player 4 of the present embodiment is the output of 4.1 audio powers. Independent power amplifier can certainly be used, i.e. radio reception player 4 is the small signal output of audio, this small signal is input to 4.1 sounds In frequency independent power amplifier, then by independent power amplifier driving front left and right sound channel, rear left and right sound channel and car door subwoofer.Radio reception player 4 4.1 audio frequency power amplifiers can be A/B class A amplifier A, be also possible to D type digital power amplifier, the transfer efficiency of D type digital power amplifier is 90% or more, and the transfer efficiency of A/B class power amplifier is 30% or so, therefore can reduce power consumption 70%, the present embodiment D class number Word power amplifier, this D type digital power amplifier are generally chip, can use the TPA3110 and TPA3116 of TI company, can also use platform The integrated circuits such as the AD52068 and AD52580, AD52090 of gulf company；Vehicle device cost can also be reduced in this way, simplified technique, taken Disappear big aluminium radiator fin.

The car door subwoofer 2 of the present embodiment includes preceding cabinet 5, rear box 6, curve trunnion 7,8 and of active woofer Passive woofer 9, preceding cabinet 5 and rear box 6 pass through 7 realization sound airflow connection of curve trunnion.The rear box wall of preceding cabinet 5 to It is outer to extend, form installation hole along 10；The preceding cabinet 5 of the present embodiment and the shape of rear box 6 be it is cylindrical, in preceding cabinet Installation hole on 6 is also round cylindrical along 10, and the diameter of preceding cabinet 6 is 170mm, and installation hole is 135mm along 10 diameter, Notice that installation hole will be installed as steel plate void shape along 10 shape with former 6.5 inch woofers, and installation hole edge 10 perimeter is less than the perimeter of former 6.5 inch woofers installation steel plate hole.In addition, preceding 5 diametrical direction of cabinet and height side To cannot be with car door big inner trim panels interference.Active woofer 8 is arranged on the preceding tank wall of preceding cabinet 5, active bass Loudspeaker 8 can be circular, be also possible to elliptical；The present embodiment is that bore is 3.5 inch circle woofers, is greater than When 3.5 inch (such as more than 4 inch), 1.3 liters of tank-volumes cannot be met the requirements, and not only bass effect is not promoted and cost will increase, Less than 3.5 inch (such as 3 inch) and it is following when bass effect it is again bad.

Rear box 6 will prevent from interfering with window lifting glass etc., on the one hand ensure that tank-volumes in this way, on the other hand again It will not interfere with glass for vehicle window etc..There are be not less than 8mm spacing when glass is fallen completely for rear box 6 and window lifting glass. 6 shape of rear box of the present embodiment is partial cylindrical shapes, and radius is less than or equal to the radius of preceding cabinet 6.Curve trunnion 7 is to even Cabinet 5 and rear box 6, are a penetrating pipes before connecing, and on the one hand sufficiently increase volume in this way, are on the other hand guaranteed again whole The intensity of body subwoofer cabinet.The cross-sectional area of curve trunnion 7 is greater than 1000MM², the curve trunnion 7 of the present embodiment is one One end that semi-moon shaped pipe, i.e. the curve trunnion 7 of the present embodiment are connected to preceding cabinet 5 is straight tube, is connected to rear box 6 another The axial cross section of one end is inclined-plane；The cross-sectional area of the curve trunnion 7 of the present embodiment is 5000MM².The preceding cabinet of the present embodiment 5, the volume of rear box 6 and curve trunnion 7 and be 1.3 liters.

Passive woofer 9 can be one, be also possible to be arranged in pairs.Passive woofer is also known as bass radiation Device, without magnet, magnetic circuit and voice coil, only vibrating diaphragm and its supporting mechanism.It can be circular, be also possible to ellipse Or it is rectangular.Shape can be plate, be also possible to circular cone.The vibrating diaphragm area of passive woofer 9 and it is greater than 1.5 times of the vibrating diaphragm area sum of active woofer 8, the case of preceding cabinet 5 or rear box 6 is arranged in passive woofer 9 On wall, and the mounting plane of passive woofer 9 and the mounting plane of active woofer 8 it is coplanar with it is parallel.This implementation Example uses the passive woofer of round plate of a pair of of diameter phi 88mm.One in front and one in back correspondence is mounted on rear box 6 for they Forward and backward tank wall on, and mounting plane of the mounting plane of this pair of passive woofer 6 and active woofer 8 is flat Row.The outer of the present embodiment rear box 6 is coplanar with the outer of preceding cabinet 5.

Car door subwoofer 2 can be manufactured with the production such as plastics, metal, the present embodiment with the method for die sinking injection molding.First basis The structure of former automobile car door to be installed, according to this example demonstrates that design principle, design appearance and structure；Then cabinet is made Mold, cabinet are manufactured with ABS injection molding, and active woofer 8 and passive woofer 9 are then mounted on cabinet On.

Embodiment two

As shown in Fig. 2A~2D, the difference between this embodiment and the first embodiment lies in: the radio reception player 4 of the present embodiment is 4.0 outputs are the original-pack automobile vehicle devices of former traditional technology, and car door subwoofer 2 is two, they are separately mounted to front left and right vehicle Door lower part, and this two 6.5 inch woofers of direct replacement.The two car door subwoofers 2 are active subwoofers, i.e., by bass Big gun power board is built in the cabinet of car door subwoofer 2.This subwoofer power board is D type digital power amplifier, and has subwoofer Electronics low-pass filter circuit.The audio signal of the two active car door subwoofers 2 respectively from radio reception player 4 front left and Front right power output is to the connecting plug of front left and front right car door, the two active subwoofer direct current 12V power supplys are from respective side In car door, obtained by the transition connection wiring harness being connected in series between the lifting of car door car window glass and the connector assembly of door switch bus. The present embodiment is very suitable for the rear dress sound equipment upgrading of automobile；In addition, the passive woofer 9 of a pair of the present embodiment, wherein One is only installed on the rear box wall of rear box 6, it is another be only installed at before cabinet 5 preceding tank wall on, and with active woofer 8 Mounting plane it is coplanar.Therefore, the internal diameter of one end that the curve trunnion 7 of the present embodiment is connected to preceding cabinet 5 is greater than embodiment one； Further more, the axial cross section for the other end that the curve trunnion 7 of the present embodiment is connected to rear box 6 is the cambered surface to concave.Remaining is It is the same as example 1.

Embodiment three

As shown in Fig. 3 A~3D, the difference between this embodiment and the first embodiment lies in: the medium and high pitch loudspeaker 11 of the present embodiment It is not installed in cabinet, but is set up directly in automobile 1, passive woofer 9 is one, a diameter of 120mm, setting On the preceding tank wall of rear box 6；Further more, the axial cross section for the other end that the curve trunnion 7 of the present embodiment is connected to rear box 6 is The cambered surface to concave.Remaining is and embodiment one is identical.

Example IV

As shown in Fig. 4 A~4D, the difference between this embodiment and the first embodiment lies in: the radio reception player 4 of the present embodiment is 5.1, i.e., center channels output all the way is increased on the basis of original 4.1, Hi-Mid speaker 3 is five, wherein three are 1.5 inch Full frequency speaker, two are set to front left and right car door top, and one the middle part of preceding instrument desk is arranged in as center loudspeaker； Another two is 3 inch full frequency speakers, is respectively arranged at the left and right both ends of rear window platform；Further more, the curve trunnion 4 of the present embodiment Length be greater than embodiment one curve trunnion 4 length, one end be connected to preceding cabinet 5 be straight tube, be connected to rear box 6 The other end is bend pipe, the longitudinal center line at the position that curve trunnion 7 is connected to preceding cabinet 5 and the position being connected to rear box 6 Longitudinal center line is perpendicular, flexibly sets in the place that can be set any in car door, thus so that rear box 6 is more convenient Form 5.1 household audio and video systems in the car.The outer of cabinet 5 before the outer of the rear box 6 of the present embodiment protrudes from.Remaining is It is identical with embodiment one.

The working principle of the utility model are as follows:

When the radio reception player 4 in automobile 1 works, 4.1 or 4.0 audio power signals are exported, front left and right is with after Left and right four roads full range audio power implementation is added on front left and right sound channel and the respective medium and high pitch loudspeaker 11 of rear left and right sound channel, this Four medium and high pitch loudspeakers 11 complete the conversion of Hi-Mid electroacoustic；Since its bore is small, vibrating diaphragm is light, and voice coil is light, is good at very much Complete the electroacoustic conversion of middle pitch and high pitch, thus overcome traditional technology four basses, two high pitch auto loud hailer system by The drawbacks of 6.5 inch woofers send out middle pitch bad, while overcoming shortcoming of the heel row without high pitch；Since this four Hi-Mids are raised Top in the car is arranged in sound device, closer to ear audition plane, therefore just overcomes the auto loud hailer middle pitch of traditional technology The 6.5 inch woofers by being located at underfooting issue, the drawback just as singer's crouching is sung in occupant underfooting, therefore acoustic image positions Good, interior telepresenc is stronger, and sound field is openr.The Hi-Mid that the clear, distortion factor is small and acoustic image is had good positioning can thus be obtained.

When subwoofer power (250HZ or less) is applied to active woofer 8, the vibrating diaphragm of active woofer 8 Vibration generates bass, completes the electroacoustic conversion of bass.When the vibrating diaphragm direction vibration in cabinet 5 forward of active woofer 8 When, the air before having compressed in cabinet 5, the atmospheric pressure before making in cabinet 5 is greater than the pressure in curve trunnion 7 and rear box 6, Air before causing in cabinet 5 is flowed by curve trunnion 7 into rear box 6.At this moment, the pressure of forward and backward cabinet 5,6 is both greater than The vibrating diaphragm stress of listening volume pressure, passive woofer 9 shakes to respective cabinet outside direction；When active woofer 8 When 5 outside direction of cabinet shakes forward, the pressure in preceding cabinet 5 is reduced, and the air in rear box 6 is just through the case forward of curve trunnion 7 Flowing, this flowing just produce the effect of aeroacoustics spring in body 5.Meanwhile whole active vibrating diaphragm areas and passive vibrating diaphragm Area and nearly 2 times are increased, is thus enhanced bass sound wave.Meanwhile this bass sound wave is not that diameter is radiated audition Space, but first travel in car door, under car door internal volume space behavior, bass sound wave further gets a promotion, Bass sound wave after promotion travels to occupant's foot storehouse again, and 50 liters or so of foot storehouse makes this bass sound wave get back promotion.It is more in this way The common results of recast make the small woofer of 1.3 liter capacity, 3.5 inch obtain simple and honest, pure and shock bass； Also, the structure design of the double cabinets of the unique preceding cabinet of 1.3 liters of small box, rear box and curve trunnion, can be to biography In the case of system automobile original automobile door structure does not make any changes, woofer when 6.5 inch of direct replacement original bottom of door, and one The bass effect of a such car door subwoofer than four 6.5 inch woofers of traditional technology car door also than get well, and cost compared with Few 75%.

In short, the utility model is in the case where the cost than conventional car stereo technology is greatly lowered, it will be with bass The household audio and video system of big gun is arranged in automobile, is remarkably enhanced the sound quality of car audio system.

Claims (10)

1. a kind of car audio system based on car door subwoofer, it is characterised in that: including the vehicle being separately mounted in automobile (1) Door subwoofer (2), medium and high pitch loudspeaker (11) and radio reception player (4), wherein car door subwoofer (2) include preceding cabinet (5), after Cabinet (6), curve trunnion (7), active woofer (8) and passive woofer (9), wherein preceding cabinet (5) and rear cabinet Body (6) is independent closed case, is connected between the preceding cabinet (5) and rear box (6) by the curve trunnion (7), Realize the conducting of information stream, position which is connected to the preceding cabinet (5) and curve trunnion (7) with it is described after The position of cabinet (6) connection tilts, i.e., position that the described curve trunnion (7) is connected to preceding cabinet (5) and curve trunnion (7) and There is the position turned round on curve trunnion (7) between the position of rear box (6) connection；Master is equipped in the preceding cabinet (5) Dynamic woofer (8), the active woofer (8) are mounted on the preceding tank wall of the preceding cabinet (5)；The rear box (6) passive woofer (9) are equipped in, which is one or is arranged in pairs, when described passive low When sound loudspeaker (9) is one, it is mounted on the preceding tank wall or rear box wall of the rear box (6), when the passive bass loudspeaker Device (9) is correspondence when being arranged in pairs, and one of every centering is passive, and woofer (9) is installed in the rear box (6) Tank wall on, the passive woofer of the another of every centering (9) is installed on the tank wall of the rear box (6) or is mounted on On the tank wall of the preceding cabinet (5).

2. the car audio system according to claim 1 based on car door subwoofer, it is characterised in that: the Hi-Mid loudspeaking Device (11) is installed in closed case or opening box body, is formed Hi-Mid speaker (3), which is installed on automobile (1) each channel locations in.

3. the car audio system according to claim 1 based on car door subwoofer, it is characterised in that: the preceding cabinet (5) Extend outwardly towards the side of rear box (6), form installation hole along (10), one end of the curve trunnion (7) and the installation Hole is connected along (10), and the other end is connected to the rear box (6), external surface shape and vehicle of the installation hole along (10) The shape of door woofer installation steel plate hole is identical, and perimeter of the installation hole along (10) is less than car door woofer The perimeter of steel plate hole is installed.

4. the car audio system according to claim 1 based on car door subwoofer, it is characterised in that: the rear box (6) Perimeter be less than or equal to preceding cabinet (5) perimeter, the outer of the rear box (6) is coplanar with the outer of the preceding cabinet (5), or Protrude from the outer of preceding cabinet (5).

5. the car audio system according to claim 1 based on car door subwoofer, it is characterised in that: the passive bass is raised The vibrating diaphragm area of sound device (9) and be greater than the active woofer (8) vibrating diaphragm area and.

6. the car audio system according to claim 1 based on car door subwoofer, it is characterised in that: the passive bass is raised The mounting plane of sound device (9) and the mounting plane of active woofer (8) are parallel or coplanar.

7. the car audio system according to claim 1 based on car door subwoofer, it is characterised in that: the passive bass is raised Sound device (9) is when being arranged in pairs, and the tank wall that the passive woofer (9) of two of every centering is installed is identical, i.e., every centering Two passive woofers (9) are separately mounted on the preceding tank wall and rear box wall of the rear box (6)；Alternatively, every centering A passive woofer (9) be installed on the tank wall for the preceding cabinet (5) that the active woofer (8) is in, The passive woofer of the another of every centering (9) is installed on the tank wall of the rear box (6).

8. the car audio system according to claim 1 based on car door subwoofer, it is characterised in that: the passive bass is raised When sound device (9) is one, it is mounted on leaning on the nearby preceding tank wall of cabinet (5) for the rear box (6).

9. the car audio system according to claim 1 based on car door subwoofer, it is characterised in that: the car door subwoofer (2) it is one~tetra-, is separately positioned on the bottom of door of automobile (1)；The medium and high pitch loudspeaker (11) is at least two, respectively Be provided on the car door in automobile (1), or be separately positioned on left A column, on right A column, or before being separately positioned on instrument desk it is left and right Both ends, or it is separately positioned on the left and right both ends of rear window platform；The middle part of instrument desk before the radio reception player (4) is set to.

10. the car audio system according to claim 9 based on car door subwoofer, it is characterised in that: the car door bass When big gun (2) is one, it is mounted on the lower part of the right front door of the automobile (1)；When the medium and high pitch loudspeaker (11), setting exists When on car door, it is separately positioned on the top of the car door.