CN204616074U - A kind of membrane parts improving dynamic iron unit high frequency performance - Google Patents
A kind of membrane parts improving dynamic iron unit high frequency performance Download PDFInfo
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- CN204616074U CN204616074U CN201520186279.7U CN201520186279U CN204616074U CN 204616074 U CN204616074 U CN 204616074U CN 201520186279 U CN201520186279 U CN 201520186279U CN 204616074 U CN204616074 U CN 204616074U
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Abstract
The utility model discloses a kind of membrane parts improving dynamic iron unit high frequency performance, belong to technical field of acoustics.A kind of membrane parts improving dynamic iron unit high frequency performance of the present utility model, comprise membrane parts main body, one end of described membrane parts main body is the vibration fulcrum vibrated around this end, the other end is provided with the tie point be connected with the driven unit of dynamic iron unit, and the side of described membrane parts main body or the one end being provided with tie point are provided with the breach for changing membrane parts main body radial rigidity.The utility model by arranging breach in membrane parts main body, and then changes the radial rigidity of membrane parts main body, makes membrane parts main body each several part rigidity different, and when high frequency, this rigidity difference contributes to improving high frequency frequency range, and then improves high frequency performance.
Description
Technical field
The utility model relates to a kind of membrane parts, more particularly, relates to a kind of membrane parts improving dynamic iron unit high frequency performance.
Background technology
At present, because dynamic iron unit is better than moving-coil unit in the performance of medium-high frequency section, therefore in a lot of earphone, audio amplifier, iron unit is moved in extensive use.The operation principle of dynamic iron unit is: dynamic iron unit utilizes the general principle of electromagnetic conversion, during work, ac current signal passes through magnetic induction coil, coil-induced magnetisation, the balanced armature (shell fragment) being located at thiol is magnetized, the balanced armature be magnetized is then according to two like magnetic poles repel each other, and the principle that there is a natural attraction between the sexes is up-down vibration in two pieces of permanent magnets, forms the driven unit of dynamic iron unit.The sounding vibrating diaphragm of this dynamic iron unit is connected on driven unit by a metal conduction bar, drives vibrating diaphragm up-down vibration simultaneously, and then agitates the air in earphone or audio amplifier cavity, thus sound.
As shown in Figure 1, the vibrating diaphragm of existing dynamic iron unit forms primarily of membrane parts main body 1, vibrating diaphragm support 2 and film 3, and membrane parts main body 1 and vibrating diaphragm support 2 are connected as one by film 3, and driven unit drives membrane parts main body 1 to vibrate, and then driving film 3 to vibrate, blow air is sounded.In order to ensure that membrane parts main body 1 has enough rigidity, usually in membrane parts main body 1, be provided with whole piece reinforcement 4, the radial rigidity of membrane parts main body 1 (this radial rigidity refers to by the rigidity of the vibration rotating shaft of membrane parts main body 1 to the tie point direction be connected with driven unit) is consistent substantially.Because the radial rigidity of membrane parts main body 1 is basically identical, when vibrating, the part near vibration rotating shaft is little relative to the Oscillation Amplitude of the part away from vibration rotating shaft, speed slow, causes high frequency performance not enough.
Summary of the invention
1. the utility model technical problem that will solve
The purpose of this utility model is to overcome above-mentioned deficiency, a kind of membrane parts improving dynamic iron unit high frequency performance is provided, adopt the technical solution of the utility model, by arranging breach or interrupted reinforcement bead in membrane parts main body, and then change the radial rigidity of membrane parts main body, make membrane parts main body each several part rigidity different, when high frequency, this rigidity difference contributes to improving high frequency frequency range, and then improves high frequency performance.
2. technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
A kind of membrane parts improving dynamic iron unit high frequency performance of the present utility model, comprise membrane parts main body, one end of described membrane parts main body is the vibration fulcrum vibrated around this end, the other end is provided with the tie point be connected with the driven unit of dynamic iron unit, and the side of described membrane parts main body or the one end being provided with tie point are provided with the breach for changing membrane parts main body radial rigidity.
Further, two sides of described membrane parts main body arrange breach all symmetrically.
Further, the notch geometry that the side of described membrane parts main body is arranged be semicircle, half elliptic, rectangle, triangle or trapezoidal in any one.
Further, the breach quantity that the side of described membrane parts main body is arranged is one or more.
Further, it is rectangle that described membrane parts main body is provided with the notch geometry that one end of tie point is arranged.
Further, described breach is provided with two in the bilateral symmetry of tie point.
A kind of membrane parts improving dynamic iron unit high frequency performance of the present utility model, comprise membrane parts main body, one end of described membrane parts main body is the vibration fulcrum vibrated around this end, the other end is provided with the tie point be connected with the driven unit of dynamic iron unit, and described membrane parts main body is provided with the interrupted reinforcement bead for changing membrane parts main body radial rigidity.
3. beneficial effect
The technical scheme adopting the utility model to provide, compared with existing known technology, has following beneficial effect:
A kind of membrane parts improving dynamic iron unit high frequency performance of the present utility model, the side of its membrane parts main body or the one end being provided with tie point are provided with the breach for changing membrane parts main body radial rigidity; Or, membrane parts main body is provided with the interrupted reinforcement bead for changing membrane parts main body radial rigidity, by arranging breach or interrupted reinforcement bead in membrane parts main body, and then change the radial rigidity of membrane parts main body, make membrane parts main body each several part rigidity different, when high frequency, this rigidity difference contributes to improving high frequency frequency range, and then improves high frequency performance.
Accompanying drawing explanation
Fig. 1 is diaphragm structure schematic diagram of the prior art;
Fig. 2 is a kind of membrane parts structural representation improving dynamic iron unit high frequency performance of the present utility model; Wherein, Fig. 2 (a) represents the membrane parts with single semicircular indentations; Fig. 2 (b) represents the membrane parts with multiple semicircular indentations; Fig. 2 (c) represents the membrane parts with single rectangular indentation; Fig. 2 (d) represents the membrane parts with multiple rectangular indentation; Fig. 2 (e) represents that both sides, front end have the membrane parts of rectangular indentation; Fig. 2 (f) represents that both sides, front end have the membrane parts of gradual change v notch v; Fig. 2 (g) represents that front end has the membrane parts of rectangular indentation; Fig. 2 (h) represents the membrane parts with interrupted reinforcement bead;
Fig. 3 adopts a kind of diaphragm structure schematic diagram improving the membrane parts of dynamic iron unit high frequency performance of the present utility model.
Label declaration in schematic diagram:
1, membrane parts main body; 11, fulcrum is vibrated; 12, breach; 13, tie point; 14, interrupted reinforcement bead; 2, vibrating diaphragm support; 3, film; 4, reinforcement.
Embodiment
For understanding content of the present utility model further, in conjunction with the accompanying drawings and embodiments the utility model is described in detail.
Embodiment 1
Shown in composition graphs 2 and Fig. 3, a kind of membrane parts improving dynamic iron unit high frequency performance of the present embodiment, comprise membrane parts main body 1, one end of membrane parts main body 1 is the vibration fulcrum 11 vibrated around this end, the other end is provided with the tie point 13 be connected with the driven unit of dynamic iron unit, during work, the driven unit of dynamic iron unit drives membrane parts main body 1 to vibrate around vibration fulcrum 11, and drives film 3 blow air to sound.Unlike the prior art, the side of the membrane parts main body 1 in the present embodiment is provided with the breach 12 for changing membrane parts main body 1 radial rigidity, and this radial rigidity refers to membrane parts main body 1 along vibration fulcrum 11 to the rigidity in the direction of tie point 13.Membrane parts main body 1 is less at the radial rigidity at breach 12 place, experiment proves, this rigidity difference shows when low frequency and not obvious, and when high frequency, due to rigidity difference, making membrane parts main body 1, when vibrating, delicate change can occur, the high frequency frequency range of iron unit being improved, further improving the high frequency performance of dynamic iron unit.
A kind of membrane parts improving dynamic iron unit high frequency performance of the present embodiment, the side of its membrane parts main body 1 arranges separately breach 12, or two of membrane parts main body 1 sides arrange breach 12 all symmetrically, specifically in the present embodiment, breach 12 is set with adopting the bilateral symmetry of the latter, make the axial stiffness of membrane parts main body 1 symmetrical, reduce the phenomenons such as high frequency distortion.In addition, breach 12 shape that the side of the membrane parts main body 1 in the present embodiment is arranged is semicircle (as shown in Fig. 2 (a) and Fig. 2 (b)), any one in half elliptic, rectangle (as shown in Fig. 2 (c), Fig. 2 (d) and Fig. 2 (e)), triangle or trapezoidal (as Suo Shi Fig. 2 (f)).Certainly, breach 12 shape in the utility model is not limited thereto, and can also be other polymorphic structures.As shown in Fig. 2 (a) and Fig. 2 (b) and Fig. 2 (c) He Fig. 2 (d), breach 12 quantity that the side of the membrane parts main body 1 in the present embodiment is arranged can be one, also can be more than one.
Embodiment 2
The present embodiment a kind of improves the basic structure of the membrane parts of dynamic iron unit high frequency performance with embodiment 1, difference is: one end that the membrane parts main body 1 in the present embodiment is provided with tie point 13 is provided with the breach 12 (as Suo Shi Fig. 2 (g)) for changing membrane parts main body 1 radial rigidity, and, this breach 12 shape is rectangle, and breach 12 is provided with two in the bilateral symmetry of tie point 13.
Embodiment 3
As shown in Fig. 2 (h), a kind of membrane parts improving dynamic iron unit high frequency performance of the present embodiment, comprise membrane parts main body 1, one end of membrane parts main body 1 is the vibration fulcrum 11 vibrated around this end, the other end is provided with the tie point 13 be connected with the driven unit of dynamic iron unit, during work, the driven unit of dynamic iron unit drives membrane parts main body 1 to vibrate around vibration fulcrum 11, and drives film 3 blow air to sound.With above-described embodiment 1 and embodiment 2 unlike, the membrane parts main body 1 in the present embodiment is provided with the interrupted reinforcement bead 14 for changing membrane parts main body 1 radial rigidity, and this interrupted reinforcement bead 14 is arranged to the direction of tie point 13 at vibration fulcrum 11.Membrane parts main body 1 is less than the rigidity being provided with reinforcement place in the rigidity of the discontinuities of interrupted reinforcement bead 14, experiment proves, this rigidity difference shows when low frequency and not obvious, and when high frequency, due to rigidity difference, making membrane parts main body 1, when vibrating, delicate change can occur, the high frequency frequency range of iron unit being improved, further improving the high frequency performance of dynamic iron unit.
As shown in Figure 3, a kind of membrane parts improving dynamic iron unit high frequency performance of above-described embodiment 1 ~ 3 of the present utility model, membrane parts main body 1 and vibrating diaphragm support 2 similarly to the prior art, are connected as one by film 3 by the installation in dynamic iron unit vibrating diaphragm.By arranging breach 12 or interrupted reinforcement bead 14 in membrane parts main body 1, and then change the radial rigidity of membrane parts main body 1, make membrane parts main body 1 each several part rigidity different, when high frequency, this rigidity difference contributes to improving high frequency frequency range, and then improves the high frequency performance of dynamic iron unit.
Below be schematically described the utility model and execution mode thereof, this description does not have restricted, and shown in accompanying drawing is also one of execution mode of the present utility model, and actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the utility model and creating aim, without creatively designing and this technical scheme
Similar frame mode and embodiment, all should belong to protection range of the present utility model.
Claims (6)
1. one kind is improved the membrane parts of dynamic iron unit high frequency performance, comprise membrane parts main body (1), one end of described membrane parts main body (1) is the vibration fulcrum (11) vibrated around this end, the other end is provided with the tie point (13) be connected with the driven unit of dynamic iron unit, it is characterized in that: the side of described membrane parts main body (1) or the one end being provided with tie point (13) are provided with the breach (12) for changing membrane parts main body (1) radial rigidity.
2. a kind of membrane parts improving dynamic iron unit high frequency performance according to claim 1, is characterized in that: two sides of described membrane parts main body (1) arrange breach (12) all symmetrically.
3. a kind of membrane parts improving dynamic iron unit high frequency performance according to claim 1 and 2, is characterized in that: breach (12) shape that the side of described membrane parts main body (1) is arranged be semicircle, half elliptic, rectangle, triangle or trapezoidal in any one.
4. a kind of membrane parts improving dynamic iron unit high frequency performance according to claim 3, is characterized in that: breach (12) quantity that the side of described membrane parts main body (1) is arranged is one or more.
5. a kind of membrane parts improving dynamic iron unit high frequency performance according to claim 1, is characterized in that: it is rectangle that described membrane parts main body (1) is provided with breach (12) shape that one end of tie point (13) is arranged.
6. a kind of membrane parts improving dynamic iron unit high frequency performance according to claim 5, is characterized in that: described breach (12) is provided with two in the bilateral symmetry of tie point (13).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520495044.6U CN204795577U (en) | 2015-03-31 | 2015-03-31 | Improve vibrating diaphragm component that moves indisputable unit high -frequency characteristic |
| CN201520186279.7U CN204616074U (en) | 2015-03-31 | 2015-03-31 | A kind of membrane parts improving dynamic iron unit high frequency performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520186279.7U CN204616074U (en) | 2015-03-31 | 2015-03-31 | A kind of membrane parts improving dynamic iron unit high frequency performance |
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| CN201520495044.6U Division CN204795577U (en) | 2015-03-31 | 2015-03-31 | Improve vibrating diaphragm component that moves indisputable unit high -frequency characteristic |
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| CN204616074U true CN204616074U (en) | 2015-09-02 |
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| CN201520495044.6U Active CN204795577U (en) | 2015-03-31 | 2015-03-31 | Improve vibrating diaphragm component that moves indisputable unit high -frequency characteristic |
| CN201520186279.7U Active CN204616074U (en) | 2015-03-31 | 2015-03-31 | A kind of membrane parts improving dynamic iron unit high frequency performance |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520495044.6U Active CN204795577U (en) | 2015-03-31 | 2015-03-31 | Improve vibrating diaphragm component that moves indisputable unit high -frequency characteristic |
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| CN204795577U (en) | 2015-11-18 |
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