CN106465018B - Loudspeaker unit and the loudspeaker for having the loudspeaker unit - Google Patents
Loudspeaker unit and the loudspeaker for having the loudspeaker unit Download PDFInfo
- Publication number
- CN106465018B CN106465018B CN201480079606.7A CN201480079606A CN106465018B CN 106465018 B CN106465018 B CN 106465018B CN 201480079606 A CN201480079606 A CN 201480079606A CN 106465018 B CN106465018 B CN 106465018B
- Authority
- CN
- China
- Prior art keywords
- space
- loudspeaker unit
- oscillating plate
- magnetic loop
- intercommunicating pore
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 239000011148 porous material Substances 0.000 claims abstract description 88
- 230000002093 peripheral effect Effects 0.000 claims description 31
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 27
- 239000011347 resin Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 230000003467 diminishing effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 14
- UQMRAFJOBWOFNS-UHFFFAOYSA-N butyl 2-(2,4-dichlorophenoxy)acetate Chemical compound CCCCOC(=O)COC1=CC=C(Cl)C=C1Cl UQMRAFJOBWOFNS-UHFFFAOYSA-N 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
Loudspeaker unit (1) has: cricoid oscillating plate (20)；Cricoid voice coil (21) is set to the radial intermediate position of oscillating plate along the circumferencial direction of oscillating plate；Magnetic loop (10) has the magnetic gap inserted for voice coil；And shell (40), there is sound channel (LS) of the sound guidance for will issue from oscillating plate to outside.The 1st space (SA) at least delimited by part 1, voice coil and magnetic loop (10) that the voice coil relative to oscillating plate is located inside, the 2nd space (SB) at least delimited by part 2, voice coil and magnetic loop that the voice coil relative to oscillating plate is located at outside.Loudspeaker unit has the 1st intercommunicating pore (17a) of at least one that the 1st space be connected to the inner space (SN) of magnetic loop and the 2nd intercommunicating pore (49a) of at least one for being connected in the 2nd space with the side spaces (SO) of the side positioned at magnetic loop (10).
Description
Technical field
The present invention relates to loudspeaker unit and has the loudspeaker of the loudspeaker unit.
Background technique
It has been known that there is the loudspeaker units for improving acoustic characteristic.
For example, loudspeaker unit described in patent document 1 has magnetic loop, voice coil, dome-type oscillating plate and bearing
The pillar of oscillating plate.
Dome-type space between oscillating plate and magnetic loop is located at magnetic loop rear via the Kong Eryu for being set to pillar
Space connection.According to this composition, the space enlargement of the back side of oscillating plate, so the inhibition that back pressure changes is mitigated,
Acoustic characteristic is improved.
Existing technical literature
Patent document
Patent document 1: International Publication No. 2010/023759
Summary of the invention
Problems to be solved by the invention
However, it is known that the loudspeaker unit with cricoid oscillating plate.
This loudspeaker unit is used as the loudspeaker (tweeter) for high range mostly.Therefore, from former
Start with regard to the improvement without bass domain in carrying out.
Present invention has been made in view of the above circumstances, it is intended that providing a kind of loudspeaker unit and having this
There is cricoid oscillating plate to have compared with existing structure in middle bass domain for the loudspeaker of loudspeaker unit, the loudspeaker unit
Excellent acoustic characteristic.
Means for solving the problems
(1) loudspeaker unit of the above subject is solved, comprising: cricoid oscillating plate；Cricoid voice coil, along the vibration
The circumferencial direction of plate is set to the radial intermediate position of the oscillating plate；Magnetic loop has the magnetic gap for voice coil insert；With
And shell, having will be from the sound guidance that the oscillating plate issues to external sound channel, wherein at least by relative to the vibration
The voice coil of plate is located at the part 1 of inside, the voice coil and the magnetic loop and delimit the 1st space, at least by relative to
Part 2, the voice coil and the magnetic loop that the voice coil of the oscillating plate is located at outside delimit the 2nd space, described
Loudspeaker unit has the 1st intercommunicating pore of at least one and the 2nd intercommunicating pore of at least one, and the 1st intercommunicating pore of at least one is empty by the described 1st
Between be connected to the back space positioned at the rear portion of the magnetic loop, the 2nd intercommunicating pore of at least one by the 2nd space and be located at institute
State the side spaces connection of the side of magnetic loop.
According to this configuration, it is returned positioned at the back side of oscillating plate and compared to voice coil close to the 1st space of radially inner side and magnetic
The back space on road is interconnected, thus the 1st space enlargement of the back side of oscillating plate.In addition, being located at the back side of oscillating plate
And be interconnected compared to 2nd space of the voice coil close to radial outside and the side spaces positioned at the side of magnetic loop, to shake
2nd space enlargement of the back side of movable plate.Back chamber expands as a result, and the acoustic characteristic in middle bass domain is improved.
(2) in above-mentioned loudspeaker unit, the loudspeaker unit is also equipped with the phase plug being set on the oscillating plate,
The sound channel includes the annulus being formed between the shell and the phase plug, the annulus of the sound channel have from
Interior side open end is towards the diminishing sectional area in outlet opening end.
In the loudspeaker unit with scheduled outlet opening end, major diameter is used sometimes for sound equipment output is improved
Oscillating plate.In this case, it is difficult to keep the sectional area at the outlet opening end of loudspeaker unit enough relative to the size of oscillating plate
Greatly.In this composition, if forming sound channel in such a way that the sectional area of sound channel is gradually expanded, the sound channel of the interior side open end of sound channel
Width (width of cricoid interior side open end) becomes narrow, and the discharging amount of sound equipment energy is restricted.
For this problem, according to the above configuration, it is ensured that the sound channel width of the interior side open end of sound channel is enough, so sound equipment
The utilization rate of energy improves.In addition, the sectional area of the annulus of sound channel gradually contracts from interior side open end towards outlet opening end
It is small, so that the transmission loss of sound channel is suppressed.Therefore, the efficiency of loudspeaker unit improves.
(3) in above-mentioned loudspeaker unit, the shell includes: lid, has the sound channel；And housing body, storage
The magnetic loop, the loudspeaker unit have the seal member for the resin being set between the lid and the magnetic loop,
The oscillating plate is configured at the inside of the seal member between the lid and the magnetic loop, and described at least one the 2nd is connected to
Hole includes the slot or through hole for being formed in the seal member.
The seal member of resin is easily worked compared to plate.Therefore, according to the above configuration, it is set to the 2nd intercommunicating pore
The case where plate, is compared, and the production efficiency of loudspeaker unit improves.
(4) in above-mentioned loudspeaker unit, the magnetic loop includes: cricoid magnetite, is configured at than the voice coil by institute
State the radial outside of oscillating plate；Cricoid plate is set on the face opposed with the oscillating plate of the magnetite；And magnetic yoke,
It is configured in such a way that the inner peripheral surface relative to the plate forms the magnetic gap, the magnetic yoke includes: to be set to the position of the magnetite
Backboard portion on the face of the plate opposite side；Along the peripheral wall portion of the inner peripheral surface of the magnetite；And by the peripheral wall portion
The front panel portion of front end covering, the 1st intercommunicating pore run through the front panel portion of the magnetic yoke.That is, in external magnetic type
In the case where loudspeaker unit, the 1st intercommunicating pore is set to magnetic yoke.
(5) in above-mentioned loudspeaker unit, the magnetic loop includes: cricoid magnetite, is configured at than the voice coil by institute
State the radially inner side of oscillating plate；The plate of round shape is set on the face opposed with the oscillating plate of the magnetite；And magnetic yoke,
Be set to the magnetite on the face of the plate opposite side, and the magnetic gap is formed with the outer peripheral surface relative to the plate
Mode configures, and the 1st intercommunicating pore runs through the plate.That is, in the case where the loudspeaker unit of internal magnetic type, the 1st
Intercommunicating pore is set to plate.
(6) in above-mentioned loudspeaker unit, the shell stores the oscillating plate, the voice coil and the magnetic loop,
The back space at least delimited by the part of the oscillating plate opposite side of the magnetic loop and the shell, and the side is empty
Between at least delimited by the side of the magnetic loop and the shell.
(7) in above-mentioned loudspeaker unit, has seal member, the seal member is arranged at the magnetic loop and institute
It states between shell, will separate between the 2nd space and the side spaces, the 2nd intercommunicating pore of at least one includes with by institute
State slot or through hole that the mode that the 2nd space is connected to the side spaces is formed in the seal member.
(8) loudspeaker for solving the above subject has above-mentioned loudspeaker unit.Therefore, the loudspeaker is existing compared to having
The acoustic characteristic of the loudspeaker of structured annular vibration plate, middle bass domain is excellent.
Invention effect
Above-mentioned loudspeaker unit and loudspeaker have excellent acoustic characteristic in middle bass domain compared to existing structure.
Detailed description of the invention
Fig. 1 is to be related to the exploded view of the loudspeaker unit of the 1st embodiment.
Fig. 2 is the cross-sectional perspective view of loudspeaker unit.
Fig. 3 is the enlarged drawing of sound channel.
Fig. 4 is the curve graph for showing the variation of sectional area of sound channel.
Fig. 5 is the curve graph for showing acoustic characteristic.
Fig. 6 is the curve graph for showing acoustic characteristic.
Fig. 7 is the curve graph for showing acoustic characteristic.
Fig. 8 is the curve graph for showing acoustic characteristic.
Fig. 9 is to be related to the cross-sectional view of the loudspeaker unit of the 2nd embodiment.
Specific embodiment
(the 1st embodiment)
Referring to Fig.1~Fig. 8 illustrates to be related to the loudspeaker unit of the 1st embodiment.
In addition, in the explanation of the 1st embodiment, " front side " and " preceding " side for indicating output sound, " rear side " with
And " afterwards " and indicate sound outlet side opposite side.In addition, " back side " is the face opposite with the output face of sound.
As shown in Figure 1, loudspeaker unit 1 has magnetic loop 10, oscillating plate 20, voice coil 21, phase plug 30 and stores this
The shell 40 of a little components (referring to Fig. 2).In addition, phase plug 30 is the component for making the phase alignment of sound wave.
Fig. 2 shows the cross-sectional perspective views of loudspeaker unit 1.
As shown in Figure 1 and Figure 2, magnetic loop 10 has: cricoid magnetite 11；Cricoid plate 12, is configured at magnetite 11
Front surface；And magnetic yoke 13, it is configured in a manner of forming magnetic gap G relative to the inner peripheral surface 12b of plate 12.
Magnetic yoke 13 includes backboard portion 14, is configured at the rear surface of magnetite 11；And central portion 15, it is inserted through magnetite
11 centre bore 11a.
Central portion 15 has: peripheral wall portion 16, in a circumferential direction along the inner peripheral surface of magnetite 11；And front panel portion 17,
It covers the front end of peripheral wall portion 16.There is inner space SN in the inside of peripheral wall portion 16.That is, inner space SN is at least by peripheral wall
Portion 16 and front panel portion 17 delimited.In addition, inner space SN is to belong to after the front surface compared to magnetic loop 10 is present in rear side
The concept in portion space.
The front panel portion 17 of central portion 15 is located at the centre bore 12a of plate 12 (referring to Fig. 1).In the outer peripheral surface 15a of central portion 15
It is arranged between the inner peripheral surface 12b (referring to Fig. 1) of (referring to Fig. 1) and plate 12 and has the gap (that is, magnetic gap G), voice coil 21 is inserted through the seam
Gap.
In addition, the front panel portion 17 in central portion 15 is provided with interconnecting piece 18, phase plug 30 is connected in interconnecting piece 18.Interconnecting piece
18 is prominent from the central part of central portion 15.The diameter of interconnecting piece 18 is less than the diameter of the front panel portion 17 of central portion 15.In front panel portion
17, the 1st intercommunicating pore 17a is formed at equal intervals along the circumferencial direction of interconnecting piece 18.Each 1st intercommunicating pore 17a will be aftermentioned
The 1st space S A be connected to inner space SN (that is, back space).1st space S A is at least by the voice coil relative to oscillating plate 20
21 are located at the part 1 (part including aftermentioned internal ring portion 20a of inside.), the magnetic yoke 13 of voice coil 21 and magnetic loop 10 draws
It is fixed.
Oscillating plate 20 is formed by cricoid plate component.Cylindric voice coil is installed at the radial intermediate position of oscillating plate 20
21.In other words, the cricoid sound of the circumferencial direction setting along oscillating plate 20 is installed at the radial intermediate position of oscillating plate 20
Circle 21.The diameter of voice coil 21 is greater than the diameter of the outlet opening end 45b of loudspeaker unit 1.
On oscillating plate 20, than voice coil 21 close to the part (hereinafter referred to as " internal ring portion 20a " of radially inner side.) face and sound
The angle formed between the circumferential surface of circle 21 is greater than 90 degree.In addition, similarly, it is more outside close to diameter than voice coil 21 on oscillating plate 20
The part (hereinafter referred to as " outer portion 20b " of side.) face and voice coil 21 circumferential surface between the angle that is formed be greater than 90 degree.
The inner peripheral portion of the internal ring portion 20a of oscillating plate 20 is held in the base portion 31 of phase plug 30 and the interconnecting piece 18 of magnetic yoke 13
Between.
The peripheral part of the outer portion 20b of oscillating plate 20 is held between aftermentioned seal member 49 and lid 41.
Phase plug 30 includes base portion 31 (referring to Fig. 3), connect via intervening components 19 with the interconnecting piece 18 of magnetic yoke 13；With
And main part 32, it is set on the base portion 31, and constitute the inner surface of sound channel LS.
The general shape of main part 32 is cone, and main part 32 is formed as narrowing from base portion 31 towards top.Main part
32 cross sectional shape (shape in section) vertically cut with central axis C1, the position with central axis C1 is independently circle
Shape.The side 32a of main part 32 is tilted towards central axis C1.In the front panel portion of base portion 31 side section and magnetic yoke 13 of main part 32
There are cricoid spaces between 17.In the internal ring portion 20a of the space configuration oscillating plate 20.
Phase plug 30 is inserted through the fastening of bolt 33 along the hole of central axis C1.The header arrangement of bolt 33 is in phase plug
30 top.The head of bolt 33 is preferably hemispherical or is similar to hemispheric shape.
Shell 40 has the lid 41 of the front side of oscillating plate 20 covering and stores oscillating plate 20 and magnetic loop 10
Housing body 46.
Housing body 46 has the side wall 47 and bottom wall 48 for surrounding the side of magnetic loop 10.
Space (hereinafter referred to as " side spaces SO ") is provided between the side wall 47 and magnetic loop 10 of housing body 46.?
Space (hereinafter referred to as " bottom space SD ") is provided between the bottom wall 48 and magnetic loop 10 of housing body 46.In addition, bottom is empty
Between SD be the concept for belonging to the above-mentioned back space of magnetic loop 10.
Lid 41 includes central part 42, has the through hole 45 for converging sound；Circumferential part 43, is set to central part
Around 42, the front surface of magnetic loop 10 is covered；And peripheral part 44, it is set to around circumferential part 43, with housing body
46 side wall 47 connects.
Cricoid seal member 49 is configured between the circumferential part 43 of lid 41 and the plate 12 of magnetic loop 10.Seal member 49
It is formed by resin or metal (such as aluminium).Seal member 49 is by such as die forming.
Space configuration oscillating plate 20 between lid 41 and magnetic loop 10 and in the inside of seal member 49.
Between seal member 49 and plate 12, multiple 2nd intercommunicating pore 49a have been equally spaced in circumferencial direction.Each 2nd
Intercommunicating pore 49a is radially extended along seal member 49 and plate 12.
For example, each 2nd intercommunicating pore 49a is as the slot structure for cutting off a part in the face of the plate 12 of seal member 49 and being formed
At.Each 2nd intercommunicating pore 49a is by the space (hereinafter referred to as " the 2nd space S B " of the back side of outer portion 20b.) with shell 40 in
Side spaces SO connection.The part 2 that 2nd space S B is at least located at outside by the voice coil 21 relative to oscillating plate 20 is (including outer
The part of ring portion 20b.), the plate 12 of voice coil 21 and magnetic loop 10 delimit.
The through hole 45 for being set to the central part 42 of lid 41 is formed as from interior side open end 45a towards outlet opening end 45b
It becomes narrow gradually.The cross sectional shape (shape in section) of through hole 45 vertically cut with central axis C2, the position with central axis C2
Setting independently is circle.Phase plug 30 is configured in through hole 45.Space between through hole 45 and phase plug 30 is constituted
Guide a part of the sound channel LS of sound.Sound channel LS will be from the sound guidance that oscillating plate 20 issues to outside.
As described above, loudspeaker unit 1 includes multiple 1st intercommunicating pore 17a, by the 1st space S A of the back side of oscillating plate 20
It is connected to inner space SN；And multiple 2nd intercommunicating pore 49a, by the 2nd space S B and side spaces SO of the back side of oscillating plate 20
Connection.Illustrate the effect generated by multiple 1st intercommunicating pore 17a and multiple 2nd intercommunicating pore 49a below.
It has been known that there is the efficiency that can be improved middle bass domain and the space enlargement by the back side of oscillating plate 20.In loudspeaking
In the case that device unit 1 is above structure, that is to say, that be divided into the space of the back side of oscillating plate 20 relative to voice coil
21 are located at the 1st space S A of inside and in the case where the 2nd space S B in outside, it may be considered that by the 1st space S A and the 2nd
Any one space in space S B is connected to bottom space SD.
But the 1st space S A and the 2nd space S B is connected to via magnetic gap G, the width of magnetic gap G is small, so magnetic gap G becomes
The mobile barrier of air.In addition, connecting in the space setting only in the 1st space S A and the 2nd space S B with back space
In the case where logical intercommunicating pore, it is possible to create the sound wave of mode of resonance.In view of the situation, in the present embodiment, in oscillating plate
20 back side and intercommunicating pore is separately arranged by the 1st space S A that voice coil 21 separates and the 2nd space S B.
In addition, in the 1st embodiment, than the 1st space S A of voice coil 21 in the inner part and the magnetic yoke 13 for clipping the configuration of plate 12
Inner space SN connection.That is, the 1st space S A passes through the 1st intercommunicating pore 17a and inside sky with shorter length
Between SN be connected to.Therefore, the connected space being made of the 1st space S A and inner space SN, and by the 1st space S A and bottom space SD
Connection constitute connected space compare, stability becomes smaller.In addition, than the 2nd space S B of voice coil 21 in the outer part and clipping sealing
The side spaces SO connection that component 49 configures.That is, the 2nd space S B passes through the 2nd intercommunicating pore 49a with shorter length
And it is connected to side spaces SO.Therefore, the connected space being made of the 2nd space S B and side spaces SO, with by the 2nd space S B and
The connected space that the connection of bottom space SD is constituted is compared, and stability becomes smaller.Thus, it is possible to expect that the pressure of the 1st space S A becomes
The influence of the dynamic internal ring portion 20a to oscillating plate 20 and the pressure oscillation of the 2nd space S B are to the outer portion 20b's of oscillating plate 20
It influences smaller.
That is, in the case where the either side of the 1st space S A and the 2nd space S B is provided with intercommunicating pore, because humorous
Vibration mode and cause to decline in a part of generation efficiency of midrange, but by both the 1st space S A and the 2nd space S B
Intercommunicating pore is set, so that mode of resonance is inhibited, declines in the efficiency of midrange and reduces.In addition, its reason considers
It is as follows: the stability (stiffness) of the connected space including the 1st space S A and the connected space including the 2nd space S B
Stability become smaller, back pressure change inhibition mitigated, so pass through the 1st intercommunicating pore 17a and the 2nd intercommunicating pore
The cripetura of 49a further inhibits to decline in the efficiency of midrange.
In addition, the sectional area of the 1st intercommunicating pore 17a and the sectional area of the 2nd intercommunicating pore 49a are suitably set.By adjusting the 1st
The sectional area of the sectional area of intercommunicating pore 17a and the 2nd intercommunicating pore 49a, so as to the efficiency increase rate in bass domain in adjusting.
For example, by reducing their sectional area, so as to the efficiency increase rate in bass domain in inhibiting, thereby, it is possible to improve sound
The bright property (the listening to easness of sound) of sound.
Then, referring to Fig. 3, illustrate the structure of sound channel LS.Fig. 3 shows the enlarged drawing of sound channel LS.
It is (hereinafter referred to as " cyclic annular that sound channel LS is divided into the part constituted as the space between through hole 45 and phase plug 30
Part ") and there is no in through hole 45 part (hereinafter referred to as " circular cylinder shaped portion ") of configuration phase plug 30.
The cross sectional shape of annulus in sound channel LS is gradually reduced from interior side open end 45a towards outlet opening end 45b.
In addition, in sound channel LS, at least the sectional area of annulus is from interior side open end 45a towards outlet opening end 45b
It is gradually reduced.As a result, the sectional area that sound channel LS is configured to interior side open end 45a is greater than outlet opening in the 1st embodiment
Hold the sectional area of 45b.
In the prior art, for the purpose of the efficiency for improving loudspeaker unit 1, the sectional area of sound channel LS is from interior side open end
45a is gradually expanded towards outlet opening end 45b.
In contrast, this technology has the composition opposite with the composition of the prior art.The advantages of being obtained by this composition
It is explained below.
The diameter of outlet opening end 45b is set according to such as standard specification.On the other hand, the size of oscillating plate 20 is arbitrarily set
It is fixed.In the case where requiring high loudspeaker unit 1 exported, large-scale oscillating plate 20 is used.In the 1st embodiment, vibration
The diameter (diameter of part corresponding with voice coil 21) of plate 20 is greater than the diameter of outlet opening end 45b.If the diameter of oscillating plate 20
Become larger, then correspondingly, the diameter of the interior side open end 45a of sound channel LS also becomes larger.In this case, if as existing skill
Art is such, premised on the section of sound channel LS is gradually expanded, corresponding to the straight of the interior side open end 45a for increasing sound channel LS
Diameter needs to reduce the sound channel width D S of the interior side open end 45a of sound channel LS.If sound channel width D S narrows, it is released to outside
The whole tone that discharging amount and oscillating plate 20 export rings the ratio between energy (hereinafter referred to as " capacity usage ratio ".) become smaller, so generating in
The problem of bass domain efficiency declines.
In the loudspeaker unit 1 of the 1st embodiment, in view of the foregoing, in order to improve capacity usage ratio, make sound channel LS
Interior side open end 45a opening area greater than sound channel LS outlet opening end 45b opening area.Improve energy benefit as a result,
Use efficiency.
But the opening area of the interior side open end 45a of sound channel LS is only set as the outlet opening than sound channel LS
If holding the opening area of 45b big, efficiency may not necessarily be improved sometimes.Illustrate this point below.
Fig. 4 shows the relationship for the distance that the sectional area for depicting sound channel LS side open end 45a relative within is starting point
Curve (curve schematically shown).
These curves are to regard the frustum of a cone as by the part corresponding with phase plug 30 in the through hole 45 by lid 41 and incite somebody to action
Phase plug 30 regards circular cone as and (top wherein, is set as hemispherical.) and it is derived.The intermediate point of Fig. 4 shows the ring-type of sound channel LS
Partial terminal (the tie point of annulus and circular cylinder shaped portion.The vertex of bolt 33.).
The sectional area (hereinafter referred to as " interior side's opening section product " of side open end 45a within curve L2 is shown.) opened than output
The sectional area (hereinafter referred to as " outlet opening area " of mouth end 45b.) slightly larger mode set in the case where loudspeaker unit 1
The variation of the sectional area of sound channel LS.
In curve L2, the peak value of sectional area is present in from the interior side open end 45a of sound channel LS to intermediate point.Namely
Say, curve L2 indicate sound channel LS sectional area be gradually expanded and be more than sectional area peak value after reduce.With this sound channel LS
Loudspeaker unit 1 in, efficiency decline.This is because sound channel LS sectional area from the range for being expanded to diminution, generate sound wave
Transmission loss.
Curve L1, which is shown, is configured to that interior side's open area ratio outlet opening area is big and the sectional area of sound channel LS is gradually reduced
In the case where loudspeaker unit 1 sound channel LS sectional area variation.According to the loudspeaker unit 1 with this sound channel LS,
Compared with the loudspeaker unit 1 of the sound channel LS with curve L2, efficiency is improved.The sectional area of sound channel LS is gradually reduced, so suppression
The transmission loss of sound wave processed.
Referring to Fig. 5~Fig. 8, illustrate to generate in setting the 1st intercommunicating pore 17a and the 2nd intercommunicating pore 49a of loudspeaker unit 1
Effect and the sectional area of above-mentioned sound channel is gradually reduced and the effect that generates.In addition, Fig. 5~acoustic characteristic shown in Fig. 8
Curve illustrates relationship of the sound press relative to frequency.
Fig. 5 shows acoustic characteristic SP1, SP2 of the loudspeaker unit of the 1st reference example and the 2nd reference example.
In the loudspeaker unit of the 1st reference example, it is not provided with the 1st intercommunicating pore 17a and the 2nd intercommunicating pore 49a, and interior side
Opening area is less than outlet opening area.In addition to this composition with it is above-mentioned shown in loudspeaker unit 1 it is identical.That is,
The loudspeaker unit of 1st reference example is the loudspeaker unit of existing structure.
In the loudspeaker unit of the 2nd reference example, relative to the loudspeaker unit of the 1st reference example, it is provided with the 1st intercommunicating pore
17a.That is, the loudspeaker unit of the 2nd reference example will be located at the back of the internal ring portion 20a of oscillating plate 20 with the 1st intercommunicating pore 17a
It is connected between 1st space S A of side and the inner space SN of magnetic yoke 13.
As shown in figure 5, the acoustic characteristic SP2 of the loudspeaker unit of the 2nd reference example, in middle bass domain (70Hz~500Hz)
The efficiency of acoustic characteristic SP1 high with the loudspeaker unit than the 1st reference example (referring to arrow A).This is because setting the 1st connects
Through-hole 17a and the effect generated.But the acoustic characteristic SP2 of the loudspeaker unit of the 2nd reference example midrange (500Hz~
1kHz) there is the efficiency lower than the acoustic characteristic SP1 of the loudspeaker unit of the 1st reference example (referring to arrow B).This is because resonance
Caused by the generation of mode.
Fig. 6 shows the acoustic characteristic of the loudspeaker unit of the 1st reference example and the 3rd reference example.
The loudspeaker unit of 3rd reference example is provided with the 2nd intercommunicating pore 49a relative to the loudspeaker unit of the 1st reference example.
That is, the loudspeaker unit of the 3rd reference example will be located at the back side of the outer portion 20b of oscillating plate 20 with the 2nd intercommunicating pore 49a
It is connected between 2nd space S B and side spaces SO.
As shown in fig. 6, the acoustic characteristic SP3 of the loudspeaker unit of the 3rd reference example has in middle bass domain (70Hz~500Hz)
There is the efficiency of the acoustic characteristic SP1 high than the loudspeaker unit of the 1st reference example (referring to arrow C).This is by being provided with the 2nd connection
Hole 49a and the effect generated.But the acoustic characteristic SP3 of the loudspeaker unit of the 3rd reference example midrange (500Hz~
1kHz) there is the efficiency lower than the acoustic characteristic SP1 of the loudspeaker unit of the 1st reference example (referring to arrow D).This is because resonance
Caused by the generation of mode.
Fig. 7 shows the acoustic characteristic of the loudspeaker unit 1 of the 1st reference example and the 1st embodiment.
The loudspeaker unit of the 1st reference example is provided with the 1st intercommunicating pore in the loudspeaker unit 1 of the 1st embodiment
17a and the 2nd intercommunicating pore 49a.
As shown in fig. 7, the acoustic characteristic SPA of the loudspeaker unit 1 of the 1st embodiment is in middle bass domain (70Hz~500Hz)
The efficiency (referring to arrow E) of acoustic characteristic SP1 high with the loudspeaker unit than the 1st reference example, midrange (500Hz~
Efficiency in 1kHz), which declines, is suppressed (referring to arrow F).That is, according to this configuration, in addition to the efficiency in middle bass domain mentions
Height can obtain generating in the case where an intercommunicating pore being only arranged in the 1st intercommunicating pore 17a and the 2nd intercommunicating pore 49a
Effect (midrange efficiency decline inhibitory effect).
Fig. 8 shows the acoustic characteristic of the loudspeaker unit of the 1st reference example and the 2nd embodiment.
The loudspeaker unit 1 of 2nd embodiment, relative to the loudspeaker unit of the 1st reference example, be arranged the 1st intercommunicating pore 17a,
2nd intercommunicating pore 49a, and the sectional area for the annulus being configured in sound channel LS is gradually reduced.
As shown in figure 8, the acoustic characteristic SPB of the loudspeaker unit 1 of the 2nd embodiment is in middle bass domain (70Hz~500Hz)
The efficiency (referring to arrow G) of acoustic characteristic SP1 high with the loudspeaker unit than the 1st reference example, midrange (500Hz~
Efficiency (referring to arrow H) substantially 1kHz) is maintained, there is the loudspeaker list than the 1st reference example at high range (3kHz~20kHz)
The efficiency of the acoustic characteristic SP1 high of member (referring to arrow I).
The efficiency raising of middle bass domain (70Hz~500Hz) is by being provided with the 1st intercommunicating pore 17a and the 2nd intercommunicating pore
49a and the effect generated.
The efficiency raising of high range (3kHz~20kHz) is generated and the sectional area for being configured to sound channel LS is gradually reduced
Effect.
The efficiency decline of midrange (500Hz~1kHz) inhibits to be by the 1st intercommunicating pore 17a of setting and the 2nd intercommunicating pore
49a and the sectional area for being configured to sound channel LS are gradually reduced and the resultant effect that generates.
According to the 1st embodiment, effect below is obtained.
The loudspeaker unit 1 of (1) the 1st embodiment includes the 1st intercommunicating pore 17a of at least one, by the back side of oscillating plate 20
1st space S A of side is connected to the inner space SN (back space) of magnetic loop 10；And the 2nd intercommunicating pore 49a of at least one, it will
2nd space S B of the back side of oscillating plate 20 is connected to the side spaces SO of magnetic loop 10.
According to this configuration, the inner space SN of the 1st space S A and magnetic loop 10 of the back side of oscillating plate 20 are interconnected,
To the space enlargement of the back side of oscillating plate 20.In addition, the side of the 2nd space S B and magnetic loop 10 of the back side of oscillating plate 20
Portion space S O is interconnected, thus the space enlargement of the back side of oscillating plate 20.So-called back chamber expands as a result, so loudspeaker
The acoustic characteristic in the middle bass domain of unit 1 is improved.In addition, as described above, the efficiency decline of midrange is suppressed.Separately
Outside, it is had little effect in high range, moreover it is possible to obtain a little efficiency and improve.
(2) in above-mentioned loudspeaker unit 1, sound channel LS includes the through hole 45 for being set to shell 40；And be configured at
The connection stem portion formed between phase plug 30 in through hole 45.The sectional area of annulus in sound channel LS is open from interior side
End 45a is gradually reduced towards outlet opening end 45b.
According to this configuration, with the sectional area of the annulus in sound channel LS from interior side open end 45a towards outlet opening end
The sound channel LS that the mode that 45b is gradually expanded is constituted is compared, and the interior side open end 45a of sound channel LS expands.Therefore, the energy of sound equipment energy
Utilization rate is measured to improve.In addition, by the sectional area of the annulus in sound channel LS from interior side open end 45a towards outlet opening end
The transmission loss of the diminishing composition of 45b, sound channel LS is suppressed.It is made up of these, the efficiency of loudspeaker unit 1 improves.
(3) in above-mentioned loudspeaker unit 1, the seal member 49 of resin is configured between lid 41 and magnetic loop 10.Vibration
Plate 20 is configured between lid 41 and magnetic loop 10 and the inside of seal member 49.2nd intercommunicating pore 49a is set to sealing as slot
Part 49.
The seal member 49 of resin is easily worked compared with plate 12.Therefore, according to this configuration, with the 2nd intercommunicating pore 49a quilt
The case where being set to plate 12 is compared, and the production efficiency of loudspeaker unit 1 improves.
In addition, seal member 49 has the 2nd intercommunicating pore 49a that constitutes as slot, rather than through hole, so can pass through
Resin forming or die casting (die casting) molding.Therefore, the production efficiency for facilitating loudspeaker unit 1 improves.
(4) in above-mentioned loudspeaker unit 1, magnetic yoke 13 have connect with the rear surface of magnetite 11 backboard portion 14, along
The peripheral wall portion 16 of the inner peripheral surface of magnetite 11 and the front panel portion 17 for covering the front end of peripheral wall portion 16.1st intercommunicating pore 17a is by magnetic
The front panel portion 17 of yoke 13 runs through.That is, the 1st intercommunicating pore 17a is set in the case where loudspeaker unit 1 of external magnetic type
Magnetic yoke 13.
(the 2nd embodiment)
In the 1st embodiment, illustrate the loudspeaker unit 1 of the magnetic loop 10 with external magnetic type, but above explained skill
Art is readily applicable to the loudspeaker unit 1 with the magnetic loop 10 of internal magnetic type.In the following, being shown to in the 1st embodiment
The identical composition of loudspeaker unit 1 assign same symbol, illustrate the loudspeaker unit 1.
Fig. 9 shows the example of the loudspeaker unit 1 of the magnetic loop 10 with internal magnetic type.
The loudspeaker unit 1 has magnetic loop 10, oscillating plate 20, voice coil 21, phase plug 30 and stores these components
Shell 40.Magnetic loop 10 have cricoid magnetite 11, the front surface for being configured at magnetite 11 round shape plate 112 and with opposite
The magnetic yoke 113 that the mode of magnetic gap G configures is formed in the outer peripheral surface 112c of plate 112.
Magnetic yoke 113 includes cricoid backboard portion 113a, is configured at the rear surface of magnetite 11；And along the outer of magnetite 11
The outside wall portions 113b of circumferential surface.
The inner seal component 114 for connecting phase plug 30 is configured in the front surface central part of plate 112.Inner seal
The diameter of component 114 is less than the diameter of the centre bore 11a of magnetite 11.Around the inner seal component 114 of plate 112, along
Circumferencial direction is formed at equal intervals the 1st intercommunicating pore 112a.Each 1st intercommunicating pore 112a is by the back side of internal ring portion 20a
(the 1st space S A) is connected to the inner space SM in magnetite 11 in space.1st space S A is at least by the voice coil relative to oscillating plate 20
21 are located at the delimitation of plate 112 of the part 1, voice coil 21 and magnetic loop 10 of inside.In addition, inner space SM is to be present in ratio
Concept of the front surface of magnetic loop 10 by the back space of rear side.
Lid 41 has structure in a same manner as in the first embodiment, has central part 42, circumferential part 43 and is set to circumference
Peripheral part 44 around portion 43.
Cricoid seal member 49 is configured between the circumferential part 43 of lid 41 and the outside wall portions 113b of magnetic yoke 113.Sealing
Part 49 is formed by resin.
In addition, being equally spaced in circumferencial direction more between seal member 49 and the outside wall portions 113b of magnetic yoke 113
A 2nd intercommunicating pore 49a.Each 2nd intercommunicating pore 49a is radially extended along seal member 49 and the outside wall portions 113b's of magnetic yoke 113.
For example, each 2nd intercommunicating pore 49a is constituted as the slot that a part in the face of the magnetic yoke 113 of seal member 49 is cut off and formed.Respectively
The space (the 2nd space S B) of the back side of outer portion 20b is connected to by the 2nd intercommunicating pore 49a with the side spaces SO in shell 40.The
2 space S B delimited by part 2, voice coil 21 and the magnetic yoke 113 that the voice coil 21 relative at least oscillating plate 20 is located at outside.
In addition, composition in addition to this is identical as the loudspeaker unit 1 shown in the 1st embodiment.
As described above, in the case where loudspeaker unit 1 of internal magnetic type, it is different from the loudspeaker unit 1 of external magnetic type, each
1 intercommunicating pore 112a is set to plate 112.In the same manner as the loudspeaker unit 1 of external magnetic type, each 2nd intercommunicating pore 49a is in seal member 49
It is upper to be arranged as slot.According to this constitution, the effect based on above-mentioned (1) illustrated in the 1st embodiment can be obtained.
In addition, being gradually reduced in the loudspeaker unit 1 of the magnetic loop 10 with above-mentioned internal magnetic type with the sectional area of sound channel LS
Mode constitute sound channel LS, so as to obtain the effect in above-mentioned (2) that the 1st embodiment illustrates.
(other embodiments)
In the 1st embodiment, front panel portion 17 and interconnecting piece 18 are formed as one, they are constituted as individual components.
In addition, in such a situation it is preferred to isolated interconnecting piece 18 and intervening components 19 (seal member) is formed as one.According to this
It constitutes, the structure of magnetic yoke 13 is simplified and number of components does not also increase, so production efficiency improves.
Sound channel LS shown in 1st and the 2nd embodiment is an example, and the structure of sound channel LS is without being limited thereto.For example,
Sound channel LS is configured to become ring-type from the interior side open end 45a to outlet opening end 45b of sound channel LS.In addition, circular cylinder shaped portion
It is configured to be gradually expanded towards outlet opening end 45b sectional area, alternatively, it is also possible to be configured to towards outlet opening end 45b
Sectional area is gradually reduced.
In the 1st and the 2nd embodiment, each 2nd intercommunicating pore 49a is configured between seal member 49 and plate 12, and
Each 2nd intercommunicating pore 49a is constituted as the slot formed and cutting off a part of seal member 49, but each 2nd intercommunicating pore
The composition of 49a is without being limited thereto.For example, each 2nd intercommunicating pore 49a can be used as the through hole composition through seal member 49.
Technology shown in 1st and the 2nd embodiment is suitable for loudspeaker.
This loudspeaker has above-mentioned loudspeaker unit 1, so that the efficiency in middle bass domain improves.
In the 1st and the 2nd embodiment, loudspeaker unit 1 has multiple 1st intercommunicating pore 17a and the multiple 2nd and connects
Through-hole 49a, but as long as having the 1st intercommunicating pore 17a of at least one and at least one the 2nd intercommunicating pore 49a, the 1st intercommunicating pore 17a
Quantity and the quantity of the 2nd intercommunicating pore 49a be not particularly limited.
Description of symbols
1 ... loudspeaker unit, 10 ... magnetic loops, 11 ... magnetites, 11a ... centre bore, 12 ... plates, 12a ... centre bore,
12b ... inner peripheral surface, 13 ... magnetic yokes, 14 ... backboard portions, 15 ... central portions, 15a ... outer peripheral surface, 16 ... peripheral wall portions, 17 ... front panel portions,
The 1st intercommunicating pore of 17a ..., 18 ... interconnecting pieces, 19 ... intervening components, 20 ... oscillating plates, 20a ... internal ring portion, 20b ... outer portion,
21 ... voice coils, 30 ... phase plugs, 31 ... base portions, 32 ... main parts, the side 32a ..., 33 ... bolts, 40 ... shells, 41 ... lid,
The interior side open end 42 ... central parts, 43 ... circumferential parts, 44 ... peripheral parts, 45 ... through holes, 45a ..., 45b ... outlet opening end,
46 ... housing bodies, 47 ... side walls, 48 ... bottom walls, 49 ... seal members, the 2nd intercommunicating pore of 49a ..., 112 ... plates, 112a ... the 1st
Intercommunicating pore, 112c ... outer peripheral surface, 113 ... magnetic yokes, 113a ... backboard portion, 113b ... outside wall portions, 114 ... inner seal components.
Claims (8)
1. a kind of loudspeaker unit, comprising: cricoid oscillating plate；Cricoid voice coil is set along the circumferencial direction of the oscillating plate
It is placed in the radial intermediate position of the oscillating plate；Magnetic loop has the magnetic gap for voice coil insert；And shell, having will
From the sound guidance that the oscillating plate issues to external sound channel, wherein
It delimited by part 1, the voice coil and the magnetic loop that the voice coil relative to the oscillating plate is located inside
1st space,
It delimited by part 2, the voice coil and the magnetic loop that the voice coil relative to the oscillating plate is located at outside
2nd space,
At the rear portion of the magnetic loop there are back space,
The back space includes inner space, the side spaces positioned at the side of the magnetic loop and the general of the magnetic loop
The bottom space that the inner space is connected to the side spaces,
The loudspeaker unit has the 1st intercommunicating pore of at least one and the 2nd intercommunicating pore of at least one, and the 1st intercommunicating pore of at least one is by institute
It states the 1st space to be connected to the inner space of the magnetic loop, the 2nd intercommunicating pore of at least one is by the 2nd space and the magnetic loop
Side spaces connection.
2. loudspeaker unit according to claim 1,
The loudspeaker unit is also equipped with the phase plug being set on the oscillating plate,
The sound channel includes the annulus being formed between the shell and the phase plug,
The annulus of the sound channel has from interior side open end towards the diminishing sectional area in outlet opening end.
3. according to claim 1 or loudspeaker unit as claimed in claim 2,
The shell includes: lid, has the sound channel；And housing body, the magnetic loop is stored,
The loudspeaker unit has the seal member for the resin being set between the lid and the magnetic loop,
The oscillating plate is configured at the inside of the seal member between the lid and the magnetic loop,
The 2nd intercommunicating pore of at least one includes the slot or through hole for being formed in the seal member.
4. according to claim 1 or loudspeaker unit as claimed in claim 2,
The magnetic loop includes: cricoid magnetite, is configured at the radial outside that the oscillating plate is leaned on than the voice coil；It is cricoid
Plate is set on the face opposed with the oscillating plate of the magnetite；And magnetic yoke, it is formed with the inner peripheral surface relative to the plate
The mode of the magnetic gap configures,
The magnetic yoke includes: to be set to the backboard portion on the face of the plate opposite side of the magnetite；Along the magnetite
Inner peripheral surface peripheral wall portion；And the front panel portion for covering the front end of the peripheral wall portion,
1st intercommunicating pore runs through the front panel portion of the magnetic yoke.
5. according to claim 1 or loudspeaker unit as claimed in claim 2,
The magnetic loop includes: cricoid magnetite, is configured at the radially inner side that the oscillating plate is leaned on than the voice coil；Round shape
Plate is set on the face opposed with the oscillating plate of the magnetite；And magnetic yoke, be set to the magnetite be located at it is described
On the face of the opposite side of plate, and configured in such a way that the outer peripheral surface relative to the plate forms the magnetic gap,
1st intercommunicating pore runs through the plate.
6. loudspeaker unit according to claim 1,
The shell stores the oscillating plate, the voice coil and the magnetic loop,
The back space by the magnetic loop the oscillating plate opposite side part and the shell delimit,
The side spaces delimited by the side of the magnetic loop and the shell.
7. loudspeaker unit according to claim 6, wherein
The loudspeaker unit has seal member, and the seal member is arranged between the magnetic loop and the shell,
It will separate between 2nd space and the side spaces,
The 2nd intercommunicating pore of at least one include be formed in a manner of being connected in the 2nd space with the side spaces it is described
The slot or through hole of seal member.
8. a kind of loudspeaker has loudspeaker unit described in any one of 1~claim 7 of claim.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2014/067007 WO2015198454A1 (en) | 2014-06-26 | 2014-06-26 | Speaker unit and speaker comprising that speaker unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106465018A CN106465018A (en) | 2017-02-22 |
| CN106465018B true CN106465018B (en) | 2019-07-19 |
Family
ID=54937581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480079606.7A Active CN106465018B (en) | 2014-06-26 | 2014-06-26 | Loudspeaker unit and the loudspeaker for having the loudspeaker unit |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6397494B2 (en) |
| CN (1) | CN106465018B (en) |
| WO (1) | WO2015198454A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108810732B (en) | 2014-09-30 | 2020-03-24 | 苹果公司 | Loudspeaker |
| USRE49437E1 (en) | 2014-09-30 | 2023-02-28 | Apple Inc. | Audio driver and power supply unit architecture |
| US10834497B2 (en) * | 2016-09-23 | 2020-11-10 | Apple Inc. | User interface cooling using audio component |
| CN111131977B (en) * | 2020-03-05 | 2021-02-26 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62210800A (en) * | 1986-03-12 | 1987-09-16 | Fumio Shintaku | Horn speaker |
| JPH02133090U (en) * | 1989-04-05 | 1990-11-05 | ||
| CN1525790A (en) * | 2003-02-28 | 2004-09-01 | 星精密株式会社 | Electroacoustic transducer |
| CN103167388A (en) * | 2011-12-19 | 2013-06-19 | 莫列斯公司 | Loudspeaker device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5877979U (en) * | 1981-11-24 | 1983-05-26 | ソニー株式会社 | microphone |
| JPS58142694A (en) * | 1982-02-17 | 1983-08-24 | Toa Tokushu Denki Kk | Structure of speaker driving part |
| JPH04329799A (en) * | 1991-05-02 | 1992-11-18 | Matsushita Electric Ind Co Ltd | Horn speaker |
| JP4042732B2 (en) * | 2004-09-28 | 2008-02-06 | オンキヨー株式会社 | Ring type speaker |
-
2014
- 2014-06-26 JP JP2016528945A patent/JP6397494B2/en active Active
- 2014-06-26 WO PCT/JP2014/067007 patent/WO2015198454A1/en active Application Filing
- 2014-06-26 CN CN201480079606.7A patent/CN106465018B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62210800A (en) * | 1986-03-12 | 1987-09-16 | Fumio Shintaku | Horn speaker |
| JPH02133090U (en) * | 1989-04-05 | 1990-11-05 | ||
| CN1525790A (en) * | 2003-02-28 | 2004-09-01 | 星精密株式会社 | Electroacoustic transducer |
| CN103167388A (en) * | 2011-12-19 | 2013-06-19 | 莫列斯公司 | Loudspeaker device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106465018A (en) | 2017-02-22 |
| WO2015198454A1 (en) | 2015-12-30 |
| JPWO2015198454A1 (en) | 2017-04-20 |
| JP6397494B2 (en) | 2018-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106465018B (en) | Loudspeaker unit and the loudspeaker for having the loudspeaker unit | |
| JP3147185U (en) | Dual frequency coaxial earphone with shared magnet | |
| US11950073B2 (en) | Coaxial speaker | |
| WO2015056371A1 (en) | Speaker system | |
| EP3046336A1 (en) | Earphone device having sound guiding structures | |
| US8989419B2 (en) | Phase plug with axially twisted radial channels | |
| CN103227973A (en) | Crossover double speaker | |
| US8831270B1 (en) | Single magnet coaxial loudspeaker | |
| CN205726386U (en) | sound-producing device | |
| CN206350126U (en) | Earphone with double preceding operatic tunes and double rear operatic tunes | |
| CN105704626A (en) | Ultrathin loudspeaker module | |
| KR101690524B1 (en) | Double Resonant Speaker Unit And Multi-Way Earphone Comprising The Same | |
| CN206402403U (en) | Earphone with double preceding operatic tunes | |
| KR101980163B1 (en) | Low profile loudspeaker suspension system | |
| JP6206906B2 (en) | Dynamic microphone unit and dynamic microphone | |
| CN206620287U (en) | The combination speaker of compact conformation | |
| CN106028228A (en) | Vibrating diaphragm and sound equipment provided with same | |
| CN206350127U (en) | Earphone with double rear operatic tunes | |
| US20070223774A1 (en) | Coupled body of speaker apparatus | |
| JP4440001B2 (en) | Speaker | |
| CN206977658U (en) | Ear inserting type earphone | |
| CN204498362U (en) | Baffle Box of Bluetooth loud speaker | |
| CN204741563U (en) | Electromagnetic type antinoise microphone | |
| CN201319659Y (en) | Improved in-ear earphone | |
| KR101301208B1 (en) | Speaker unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |