CN207995380U - Loud speaker and speaker - Google Patents

Abstract

The utility model discloses a kind of loud speaker and speaker, including magnet and the T iron for being installed on the magnet, the T iron includes magnetic conductive board and iron core, the iron core is installed on the upper surface of the magnetic conductive board, the lower surface of the magnetic conductive board is offered is equipped with passive radiator along the axial by the perforative through-hole of the iron core of the iron core, the through-hole.Technical solutions of the utility model when vibrational structure vibrates by the core, pushing air-flow to flow to passive radiator by through-hole, causing the resonance of passive radiator and sounding, to improve the low-frequency effect of loud speaker passive radiator installation.

Description

Loud speaker and speaker

Technical field

The utility model is related to speaker technology field, more particularly to a kind of loud speaker and speaker.

Background technology

With the development that science and technology is with rapid changepl. never-ending changes and improvements, speaker is indispensable for people.That there are some is low for existing market The preferable speaker of audio fruit, such as intelligent sound box, Baffle Box of Bluetooth, TV loudspeaker box, notebook computer sound box, these general speaker meetings It is equipped with passive radiator, bass effect is preferable, but overall dimensions are bigger.And some small-size sound boxes or Ultrathin speaker, Such as mini speaker, bluetooth headset are only capable of installing traditional loud speaker since product space is small, and can not install passive radiation Device causes bass effect poor.Speaker products solve the problems, such as bass difference, and mainly there are three directions；First：It is to increase loud speaker And voice coil bore；Second：Increase the dynamic range of loud speaker；Third：Babinet is designed using guide case or with passive radiator case Body.Wherein second point is refuted with the more and more thinner phase of product requirement, and thirdly ID limitations sometimes or waterproof requirement, cannot be satisfied demand, Simultaneously foreign matter is easy to enter in speaker.Therefore it needs to increase passive radiator and increases bore to solve the problems, such as low frequency differences. Traditional speaker is if any passive radiator, the higher box sizes of demand, enhances bass effect without passive radiator, sound quality compared with Difference, this allow for speaker can not do it is thinner.Ultra-thin speaker can only be installed relatively thin due to the limitation in the space of its own product Traditional loud speaker, loud speaker is thin and low-frequency effect is poor.

Utility model content

The main purpose of the utility model is to provide a kind of loud speaker, it is intended to improve the problem of speakers low frequencies difference.

To achieve the above object, a kind of loud speaker, including magnet and the T iron for being installed on the magnet, the T iron packet are provided Magnetic conductive board and iron core are included, the iron core is installed on the upper surface of the magnetic conductive board, and the lower surface of the magnetic conductive board is offered along institute The axial by the perforative through-hole of the iron core of iron core is stated, passive radiator is installed in the through-hole.

Preferably, the passive radiator includes vibrating diaphragm and is located on the flanging of the vibrating diaphragm periphery, wherein the vibrating diaphragm It is arranged in plane.

Preferably, the through-hole is counter sink, and the through-hole includes the deep gouge opened up by the magnetic conductive board, and by described The perforative via of the iron core, the passive radiator are overlapped in the slot bottom of the deep gouge by the slot bottom of deep gouge.

Preferably, the chamfering of transition is provided between the madial wall of the deep gouge and the end face of the magnetic conductive board lower surface.

Preferably, the loud speaker further includes the bullet wave of the one end far from the magnetic conductive board for being installed on the iron core, institute It states to play and there is open-work in the middle part of wave, multiple ventholes are provided between the outer peripheral edge and the open-work for playing wave.

Preferably, the venthole is along the circumferentially-spaced arrangement of the open-work.

Preferably, the bullet wave has erecting bed, and the end face of one end far from the magnetic conductive board of the iron core is in described The peripheral indentation of via is formed with the mounting groove for the bullet wave installation.

The utility model also proposes a kind of speaker, including any of the above-described loud speaker.

Preferably, it includes babinet and case lid that the speaker, which has shell, the shell, and the case lid covers the babinet, The loud speaker is mounted in the shell；The loud speaker further includes holder and cone basin, and the cone basin is mounted on the holder On, the babinet and the case lid one of which are connect with the T iron, and another one is connect with the holder；The babinet and institute It states case lid and offers the first sound penetrating hole and the second sound penetrating hole being connected to outside for the passive radiator and the cone basin respectively.

Preferably, for connect and installing for the holder is provided on the babinet and the case lid one of which inner surface One positioning device is provided with the second positioning device for T iron connection installation on another one inner surface.

Technical solutions of the utility model are by the way that by passive radiator installation, in the core, vibrational structure pushes air-flow when vibrating Passive radiator is flowed to by through-hole, causes the resonance of passive radiator and sounding, to improve the low-frequency effect of loud speaker.

Description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the overall structure figure of one embodiment of this practicality loud speaker；

Fig. 2 is the loud speaker separate structure schematic diagram of Fig. 1；

Fig. 3 is the vertical view of the loud speaker of Fig. 1；

Fig. 4 is loud speaker in Fig. 3 along the sectional view of line A-A；

Fig. 5 is the bottom view of T iron in Fig. 2；

Fig. 6 is T iron in Fig. 5 along the sectional view of line B-B；

Fig. 7 is that Fig. 2 is hit by a bullet the structural schematic diagram of wave；

Fig. 8 is the structural schematic diagram of passive radiator in Fig. 2；

Fig. 9 is the structural schematic diagram of cone basin in Fig. 2；

Figure 10 is the structural schematic diagram for the speaker for including loud speaker in Fig. 1.

Drawing reference numeral explanation：

The utility model aim is realized, the embodiments will be further described with reference to the accompanying drawings for functional characteristics and advantage.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Lower obtained every other embodiment, shall fall within the protection scope of the present invention.

It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment It is only used for explaining relative position relation, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.

In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and cannot understand To indicate or implying its relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ", The feature of " second " can explicitly or implicitly include at least one of the features.In addition, the technical side between each embodiment Case can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical solution Conflicting or cannot achieve when occur will be understood that the combination of this technical solution is not present, also not in the requires of the utility model Protection domain within.

Currently, large-scale speaker in the market includes babinet, loud speaker, passive radiator.Loud speaker and passive radiator point An Zhuan not be on casing of loudspeaker box, passive radiator can improve the effect of the low frequency of loud speaker, and the vibration of loud speaker pushes extraneous empty Gas forms air flow direction passive radiator, causes the resonance of passive radiator so as to improve large-scale speaker low-frequency effect.But simultaneously Air draught also easily causes the resonance of shell, causes user experience bad.Small-size sound box, Ultrathin speaker include loud speaker and case Body, since the limitation of product space is only capable of installing traditional thin loud speaker and can not install passive radiator, and low frequency is caused to be imitated Fruit is poor.Improving low frequency in speaker technology field can be by increasing voice coil bore or setting passive radiator, but this just increases Add the height of loud speaker and speaker loud speaker can not be made to be made thinner.

It please refers to Fig.1 and Fig. 2, the loud speaker 10 of the prior art includes magnetic structure 30, holder 40 and vibrational structure 50.Institute It states magnetic structure 30 and vibrational structure 50 is separately mounted to the top and bottom of the holder 40.It is also set respectively on the holder 40 It is equipped with the positioning device for facilitating the magnetic structure 30 and the vibrational structure 50 to install.The magnetic structure 30 under normal conditions Include T iron 31, magnet 32 and washer 33, the T iron 31 includes magnetic conductive board 311 and iron core 315, and the magnet 32 is circular ring shape Magnet, the iron core 315 are mounted on the center of the magnetic conductive board 311, and the magnetic conductive board 311 and the washer 33 are separately mounted to The upper and lower end face of the magnet 32, the iron core 315 pass through the magnet 32.The T iron 31, the magnet 32 and the magnetic conduction Plate 311 is since the suction of magnet 32 is fixed together and forms the constant magnetic field of size and Orientation.Vibrational structure 50 includes Wave 51, voice coil 52, cone basin 53 and dust cover (not shown) are played, referring to Fig. 9, the cone basin 53 includes oscillating plate 532 and ring 533, offer paraphase hole 531 among the oscillating plate 532, the oscillating plate 532 is tapered, basin shape, semicircle or other Cone basin shape, the ring 533 surround the oscillating plate 532, and the dust cap is located on 532 inner surface of the oscillating plate and covers The paraphase hole 531, it is on holder 40 that the cone basin 53 is mounted on by the ring 533.532 conical surface of the oscillating plate stretches into One end of the voice coil 52, and one end of the voice coil 52 is fixedly connected with the oscillating plate 532,52 other end of the voice coil is stretched Enter in the gap between the magnet 32 and the iron core 315.51 middle part of the bullet wave offers open-work 511, the bullet wave 51 It is fixedly connected with 52 outer ring of the voice coil by the open-work 511, the bullet wave 51 is for keeping voice coil 52 in 10 magnetic of loud speaker Correct position in air gap can also prevent dust from entering in magnetic air gap.

Generate alternating magnetic field after the voice coil 52 is by electric current, magnetic field size and Orientation caused by the voice coil 52 with The variation for tone currents is constantly changing, and magnetic field caused by the vibrational structure 50 is generated with the magnetic structure 30 Stationary magnetic field interaction makes the voice coil 52 do the movement of the current direction in the voice coil 52, due to the voice coil 52 It is connected with the oscillating plate 532, to make the voice coil 52 be vibrated with the oscillating plate 532, the vibration plane of the oscillating plate 532 Send out the sound.The flowing that the oscillating plate 532 causes loud speaker extraneous air flows to the passive radiator 20 and generates resonance Sounding achievees the effect that improve speakers low frequencies.

It please refers to Fig.1 to Fig.4, the utility model proposes a kind of loud speaker 10, including magnet 32 and is installed on the magnet 32 T iron 31, the T iron 31 include magnetic conductive board 311 and iron core 315, and the iron core 315 is installed on the upper of the magnetic conductive board 311 The lower surface on surface, the magnetic conductive board 311 is offered along the axial by 315 perforative through-hole of the iron core of the iron core 315 314, passive radiator is installed in the through-hole 314.

Specifically, the T iron 31 is not limited only to iron, it can be with nickel, stainless steel, alloy, as long as can be inhaled by magnet Draw.The iron core 315 is mounted on there are many modes on the magnetic conductive board 311, such as welding, threaded connection or one Molding etc..The through-hole 314 is connected to the oscillating plate 532 and the passive radiator 20, and 314 radial section of the through-hole has more Kind, such as circle, regular polygon, ellipse.Circular through hole can reduce the loss of air-flow, the present embodiment circular through-hole 314, And it is illustrated by taking circular through hole as an example.The passive radiator 20 is tightly fixed to by its periphery in the iron core 315, Gu There are many fixed modes, such as glue bonding, screw connection, clamping, the present embodiment are preferably bonded with glue, and glue bonding can make The passive radiator 20 and the inner wall of the through-hole 314 keep good air-tightness, ensure sounding effect.The passive radiation Can be vertical with the axial direction of the through-hole 314 or be slightly askew mounted in the through-hole 314 in the end face of device 20 The both ends of any position, such as middle part of the iron core 315, the through-hole 314, but installed in view of the passive radiator 20 It is deep, its sounding effect can be influenced, here, preferential 20 installation site of passive radiator is close to magnetic conductive board 311.

The utility model is driven by the way that passive radiator 20 to be mounted in the iron core 315 of T iron 31 after the energization of voice coil 52 Oscillating plate 532 vibrates, and oscillating plate 532 pushes air to generate air-flow, and air-flow is transmitted to the passive radiation by the through-hole 314 On device 20, makes 20 vibration sounding of the passive radiator and then improve the low-frequency effect of loud speaker 10.

On the basis of a upper embodiment, referring to Fig. 8, the passive radiator 20 includes vibrating diaphragm 21 and is located on described The flanging 22 of 21 periphery of vibrating diaphragm, there are many shapes of the vibrating diaphragm 21, such as planar shaped, taper, basin shape, but raises one's voice in view of thin The overall dimensions of device 10 are smaller, and the space for installing the passive radiator 20 is restricted, and the passive radiator 20 works When will produce amplitude.There are enough working spaces to allow the passive radiator 20, the present embodiment preferably vibrating diaphragm 21 is in Plane is arranged.In addition, there are many shapes, such as U-shaped, semicircle, V-arrangement to be all possible for the cross section of the flanging 22.

Further, on the one hand in order to reduce the whole height of loud speaker 10, on the other hand in order to facilitate the passive spoke Emitter 20 positions and in the T iron 31, improves work human efficiency.Fig. 4 to fig. 6 is please referred to, the through-hole 314 is in heavy Head bore designs, and the through-hole 314 includes the deep gouge 312 opened up by the magnetic conductive board 311, and the slot bottom by the deep gouge 312 By 315 perforative via 317 of the iron core, the passive radiator is overlapped in the slot bottom of the deep gouge 312, the passive radiation Device 20 can be fixed on the slot bottom of the deep gouge 312 with glue, such as can also pass through the week of passive radiator by other means Side closely abuts with the side wall of the deep gouge 312 and is fastened in the deep gouge 312.In view of assembler is installing the nothing When source radiation device 20, the passive radiator is easy to be scraped damage, the side wall of the counter sink and 311 lower surface of the magnetic conductive board it Between be provided with the chamfering 313 or rounded corner of transition.

In another preferred embodiment, in order to which the air-flow for making the oscillating plate 532 that air be pushed to be formed preferably flows To the passive radiator 20.Fig. 4 and Fig. 7 are please referred to, the iron core 315 is equipped with relative to 311 other end of the magnetic conductive board Wave 51 is played, 51 middle part of the bullet wave has open-work 511, is additionally provided between the outer peripheral edge and the open-work 511 for playing wave 51 Multiple ventholes 512.The venthole 512 is along 511 circumferentially-spaced arrangement of the open-work, and there are many shapes for the venthole 512 Shape, such as round, ellipse, regular polygon.Specifically, the loud speaker 10 further includes oscillating plate 532 and voice coil 52, described to shake Movable plate 532 and the bullet wave 51 are all substantially in cone basin shape.Referring to Fig. 9, the conical surface of the oscillating plate 532 extend into the voice coil One end of the voice coil 52 is covered in 52, and 532 conical surface of the oscillating plate or periphery and the voice coil 52 are solid by glue Fixed connection, specific connection type can also be with reference to the fixed form of the passive radiator 10 and the through-hole 314.The sound The other end of circle 52 is extend into the gap between the magnet 32 and the iron core 315.The bullet wave 51 is located at the voice coil In 52, periphery and the paraphase of the surface of the bullet wave 51 with the outer surface of the oscillating plate 532 by the open-work 511 The periphery in hole 531 is fixedly connected, and the mode being fixedly connected is referred to the fixation of the passive radiator 10 and the through-hole 314 Mode, bullet 51 another side of wave are mounted on the iron core 315, and the bullet wave 51 covers the through-hole 314.The vibration Plate 532, the voice coil 52, the iron core 315 and the passive radiator 20 constitute relative closure structure, can reduce air stream Dynamic scatters and disappears, and can preferably make 20 sounding of the passive radiator.Air-flow is flowed by the venthole 512 on the bullet wave 51 To the passive radiator 20.In addition, the bullet wave 51 is connect with the oscillating plate 532, the oscillating plate 532 drives the bullet Wave 51 vibrates, and the bullet wave 51 plays air-flow certain impetus.

Further, the passive radiator 20 is installed on the iron core 315 for convenience, please refers to Fig. 6 and Fig. 8, Preferably, the periphery for playing wave 51 extends outward to form erecting bed 513 to the present embodiment, and the iron core 315 is led relative to described The sunken end face of the other end of magnetic sheet 311 is formed with the mounting groove 316 installed for the bullet wave 51.The erecting bed 513 and institute Mounting groove 316 is stated to be connected and fixed by glue, fixed mode also there are many, such as screw connection, clamping.Being readily apparent that is, The installation for playing wave 51 is referred to the installation of the passive radiator 20, and can also be directly installed on is on the iron core 315, As bullet 51 periphery of wave is designed to that the erecting bed 513 being adapted with the wall thickness of the iron core 315, the erecting bed 513 pass through Screw or glue are mounted on the end face of the iron core 315.

Referring to Fig. 10, the utility model also proposes a kind of speaker, there is shell and include above-mentioned loud speaker 10, it is described outer Shell includes babinet 62 and case lid 61, and the case lid 61 covers the babinet 62, and the loud speaker 10 is mounted in the shell.Institute It further includes holder 40 and cone basin 53 to state loud speaker 10, and the cone basin 53 is mounted on the holder 40, the babinet 62 and described 61 one of which of case lid is connect with the T iron 31, and another one is connect with the holder 40, and the babinet 62 and the case lid 61 divide The first sound penetrating hole 611 and the second sound penetrating hole being connected to outside for the passive radiator 20 and the cone basin 53 are not offered 621。

Specifically, the babinet 62 is fixedly connected with the case lid 61 by screw, can also be fixed by other means Connection, such as clamping, bonding.There are many shapes, such as cuboid, cylinder, spherical shape for the shell.First sound penetrating hole 611 can be adapted with the size of the passive radiator 20, can also be by several 611 array arrangements of the first sound penetrating hole It is arranged on 20 corresponding region of the passive radiator.The setting of second sound penetrating hole 621 is with reference to first sound penetrating hole 611.10 sounding of the loud speaker is passed to by sound penetrating hole in extraneous air.

Since the passive radiator 20 is mounted in the T iron 31, the oscillating plate 532 pushes the air-flow that air generates It is applied on the passive radiator 20, air-flow is discharged into air by the passive radiator 20, and then reduce to shell Resonance, achieve the effect that reducing shell shakes sound.

Further, the loud speaker 10 is installed on the housing for convenience, the babinet 62 and the case lid It is provided with the first positioning device for the holder 40 connection installation on 61 one of which inner surfaces, is arranged on another one inner surface There is the second positioning device for the T iron 31 connection installation.There are many positioning devices, is such as provided with positioning column on the shell, The location hole being inserted into for positioning column is provided on the loud speaker 10, positioning column is inserted into location hole and completes location and installation, or The periphery inner surface of the air hole forms the locating slot for the novel installation of raising one's voice, and the loud speaker 10 is mounted on mounting groove In 316.On the one hand positioning device completes the positioning of loud speaker 10, on the other hand fix loud speaker 10 in the shell.

During user's use, the passive radiator 20 can be inevitably touched, the passive radiator 20 is easy Damage.For this purpose, the distance of outer surface to the outer surface of the shell when vibrating diaphragm 21 of the passive radiator 20 is static is more than The amplitude peak of the passive radiation vibration.

The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention, It is every under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.

Claims (10)

1. a kind of loud speaker, including magnet and the T iron for being installed on the magnet, it is characterised in that：The T iron include magnetic conductive board and Iron core, the iron core are installed on the upper surface of the magnetic conductive board, and the lower surface of the magnetic conductive board offers the axis along the iron core To by the perforative through-hole of the iron core, passive radiator is installed in the through-hole.

2. loud speaker according to claim 1, it is characterised in that：The passive radiator includes vibrating diaphragm and is located on described The flanging of vibrating diaphragm periphery, wherein the vibrating diaphragm is arranged in plane.

3. loud speaker according to claim 1, it is characterised in that：The through-hole is counter sink, and the through-hole includes by institute State the deep gouge that magnetic conductive board opens up, and by the deep gouge slot bottom by the perforative via of the iron core, the passive radiator is taken It is connected to the slot bottom of the deep gouge.

4. loud speaker according to claim 3, it is characterised in that：The madial wall of the deep gouge and the magnetic conductive board lower surface End face between be provided with the chamfering of transition.

5. loud speaker according to claim 3, it is characterised in that：The loud speaker further includes be installed on the iron core remote The bullet wave of one end from the magnetic conductive board, the bullet wave middle part has open-work, between the outer peripheral edge and the open-work of the bullet wave It is provided with multiple ventholes.

6. loud speaker according to claim 5, it is characterised in that：The venthole is along the circumferentially-spaced arrangement of the open-work.

7. loud speaker according to claim 6, it is characterised in that：The bullet wave have erecting bed, the iron core it is separate The end face of one end of the magnetic conductive board is formed with the mounting groove for the bullet wave installation in the peripheral indentation of the via.

8. a kind of speaker, it is characterised in that：Including claim 1 to 7 any one of them loud speaker.

9. speaker according to claim 8, it is characterised in that：The speaker have shell, the shell include babinet and Case lid, the case lid cover the babinet, and the loud speaker is mounted in the shell；The loud speaker further includes holder and cone Basin, on the bracket, the babinet and the case lid one of which are connect with the T iron for cone basin installation, another one and The holder connection；The babinet and the case lid offer respectively to be connected to for the passive radiator and the cone basin with outside The first sound penetrating hole and the second sound penetrating hole.

10. speaker according to claim 9, it is characterised in that：On the babinet and the case lid one of which inner surface It is provided with the first positioning device for holder connection installation, is provided on another one inner surface for T iron connection installation The second positioning device.