CN206212262U - A kind of diaphragm of loudspeaker and loudspeaker - Google Patents

Abstract

The utility model discloses a kind of diaphragm of loudspeaker, including central part and edge part, the central part and edge part junction are annular recess, depressed part lower section connection voice coil loudspeaker voice coil, the annular recess is evenly equipped with several reinforcements, the reinforcement raises up, and reinforcement is internally formed channel connection central part and edge part overlay area, and the reinforcement, central part and edge part are made into integration.The utility model sets reinforcement by voice coil loudspeaker voice coil position, strengthens the intensity at voice coil loudspeaker voice coil position, it is suppressed that diaphagras herein.The gas permeability of rear chamber is significantly increased, close to a complete back cavity, it is suppressed that bandreject filtering acoustically so that curve is more straight.

Description

A kind of diaphragm of loudspeaker and loudspeaker

Technical field

The utility model is related to a kind of diaphragm of loudspeaker, further relates to a kind of loudspeaker, and in particular to a kind of moving-coil type is raised one's voice Device.

Background technology

Coil-moving speaker is common speaker types, is usually provided with vibrating diaphragm, and vibrating diaphragm bottom is fixed with voice coil loudspeaker voice coil, voice coil loudspeaker voice coil So as to drive vibrating diaphragm sounding, vibrating diaphragm includes central part and edge part, central part and edge part junction to up-down vibration in magnetic gap It is annular recess, depressed part lower section connection voice coil loudspeaker voice coil, the depressed part may also be referred to as voice coil loudspeaker voice coil position.

For example a kind of moving-coil type is disclosed in Chinese invention patent " moving-coil type electro-acoustic conversing device " (CN101227766A) Loudspeaker, set vibrating diaphragm is exactly aforementioned structure.In Chinese invention patent " multifunction speaker " (CN103209377A) A kind of coil-moving speaker is disclosed, set vibrating diaphragm is also aforementioned structure.

The vibrating diaphragm of this spline structure is when high-frequency signal is sent, because the insufficient strength of voice coil loudspeaker voice coil position, is easily occurring dividing herein Cut vibration (direction of vibration of diaphragm diverse location is conversely, energy is cancelled out each other).Paddy is fallen in the final performance on frequency response curve, and High frequency tonequality resolution is poor.

Loudspeaker back cavity is divided into two parts of V1 and V2 by voice coil loudspeaker voice coil, and as shown in Figure 2, Figure 4 shows, magnetic circuit is non-with the gap of voice coil loudspeaker voice coil Often small (conventional is 0.15mm-0.4mm), this rear cavity configuration, the narrow slit of magnetic circuit can produce resonance with back cavity, similar to band resistance Filter construction, is lost the ability of fixed frequency band, therefore it is unsmooth to easily cause frequency response curve, peak valley occurs.

Utility model content

In view of the above problems, the utility model provides a kind of diaphragm of loudspeaker, and reinforcement is set by voice coil loudspeaker voice coil position, plus Intensity at strong voice coil loudspeaker voice coil position, it is suppressed that diaphagras herein.Simultaneously rear chamber V1 and V2 is significantly increased directly to breathe freely Property, close to a complete back cavity, it is suppressed that bandreject filtering acoustically so that curve is more straight.

The utility model additionally provides a kind of loudspeaker simultaneously, employs the above-mentioned diaphragm of loudspeaker.

To reach above-mentioned purpose, what the technical solution of the utility model was realized in：

A kind of diaphragm of loudspeaker, including central part and edge part, the central part and edge part junction are ring-shaped depression Portion, depressed part lower section connection voice coil loudspeaker voice coil, the annular recess is evenly equipped with several reinforcements, and the reinforcement raises up, Reinforcement is internally formed channel connection central part and edge part overlay area, the reinforcement, central part and the system of edge part one Into.

Further, the diaphragm of loudspeaker is circular or Long Circle, and the cross section in the middle part of the reinforcement is arc.

Further, the reinforcement is located at central part and the part of edge part is isometric or big positioned at the length of edge part In the length positioned at central part.

Further, the reinforcement top is the arc for raising up, or is the arc to lower recess.

A kind of loudspeaker, is provided with the above-mentioned diaphragm of loudspeaker, disconnection between the depressed part and voice coil loudspeaker voice coil of the diaphragm of loudspeaker Connect.

Further, the central part and edge part of the vibrating diaphragm cover to form inside and outside two chambers, the reinforcement connection two Individual chamber.

Further, the loudspeaker includes ring support, and the edge part of the vibrating diaphragm is fixed on the bracket, in fixation Place is provided with trim ring.

Further, the ring support middle part is provided with magnetic cover, and magnet is provided with the magnetic cover, and magnet top is provided with Washer plate, the magnetic cover, magnet and washer plate are located at vibrating diaphragm lower section.

Further, the washer plate, magnet and magnetic cover are provided with centre bore, three centre bore up/down perforations.

Further, the gap between the washer plate, the lateral wall of magnet, and the madial wall of the magnetic cover is magnetic gap, institute Voice coil loudspeaker voice coil is stated up and down reciprocatingly to be vibrated in magnetic gap.

In sum, the utility model has advantages below：

The utility model increased the raised ribs position of array at the voice coil loudspeaker voice coil position of vibrating diaphragm, to suppressing segmentation during dither Vibration, improving high frequency resolution has very big benefit, while the gas permeability between back cavity (V1 and V2) is lifted, between suppression cavity Resonance, lifts the smoothness of frequency response curve.

And this kind of diaphragm structure will not increase the cost of loudspeaker parts manufacture.

The utility model significantly increases the rear chamber direct gas permeability of V1 and V2, close to a complete back cavity, suppression Bandreject filtering is acoustically made so that frequency response curve is more straight.

Brief description of the drawings

Fig. 1 is the stereogram of loudspeaker in the prior art；

Fig. 2 is the sectional view of loudspeaker in the prior art；

Fig. 3 is the partial enlarged view of Fig. 2；

Fig. 4 is the stereogram of the utility model embodiment 1；

Fig. 5 is the sectional view of the utility model embodiment 1；

Fig. 6 is the sectional view of the utility model embodiment 1；

Fig. 7 is the stereogram of the utility model embodiment 2；

Fig. 8 is the sectional view of the utility model embodiment 2.

In figure：1. the diaphragm of loudspeaker；1-1. depressed parts；1-2. reinforcements；2. support；3. trim ring；4. magnetic cover；5. magnet； 6. washer plate；7. voice coil loudspeaker voice coil.

Specific embodiment

It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer Type implementation method is described in further detail.

Embodiment 1

As Fig. 4, Fig. 5, Fig. 6 show one of embodiment of the present utility model, in this embodiment, a kind of diaphragm of loudspeaker 1, including central part and edge part, central part and edge part junction are annular recess 1-1, the connection of depressed part 1-1 lower sections Voice coil loudspeaker voice coil 7, annular recess 1-1 is evenly equipped with several reinforcements 1-2, and reinforcement 1-2 raises up, and reinforcement 1-2 is internally formed Channel connection central part and edge part overlay area, reinforcement 1-2, central part and edge part are made into integration.

Because reinforcement 1-2 tops raise up, so inside can form a passage, central part and edge part are covered Region is respectively shown in V1 and V2 in Fig. 2, Fig. 4.By strengthening the intensity at voice coil loudspeaker voice coil position, it is suppressed that segmentation herein is shaken It is dynamic.

The diaphragm of loudspeaker 1 is circle, it is also possible to be designed as Long Circle, correspondingly depressed part 1-1 be circle ring or Person is the ring of Long Circle.

Reinforcement 1-2 more specifically structure designs are as follows：

Cross section in the middle part of reinforcement 1-2 is arc.

Reinforcement 1-2 is located at central part and the part of edge part is isometric.

Reinforcement 1-2 tops are the arc for raising up.

Embodiment 2

In this embodiment, as different from Example 1, as shown in Figure 7, Figure 8, reinforcement 1-2 is located at the length of edge part Degree is more than the length positioned at central part.

Reinforcement 1-2 tops are the arc to lower recess.

The reinforcement 1-2 of the type, the structure in being substantially better than embodiment 1 in terms of the structural strength.

Embodiment 3

In this embodiment, a kind of loudspeaker, is provided with the diaphragm of loudspeaker 1 described in embodiment 1 or embodiment 2, raises Connection breaking between the depressed part 1-1 and voice coil loudspeaker voice coil 7 of sound device vibrating diaphragm 1.

Except the diaphragm of loudspeaker 1, the other structures of loudspeaker may be referred to shown in Fig. 2, Fig. 3.

The central part and edge part of the diaphragm of loudspeaker 1 cover to form inside and outside two chambers, and reinforcement 1-2 connects two chambers Room.

Because the connection of depressed part 1-1 is acted on, the rear chamber direct gas permeability of V1 and V2 is significantly increased, close to one Complete back cavity, it is suppressed that bandreject filtering acoustically so that frequency response curve is more straight.

As shown in Figure 5, Figure 6, loudspeaker includes ring support 2, and the edge part of the diaphragm of loudspeaker 1 is fixed on support 2, Bearing is provided with trim ring 3.

The middle part of ring support 2 is provided with magnetic cover 4, and magnet 5 is provided with magnetic cover 4, and the top of magnet 5 is provided with washer plate 6, magnetic Cover 4, magnet 5 and washer plate 6 are located at the lower section of the diaphragm of loudspeaker 1.

Washer plate 6, magnet 5 and magnetic cover 4 are provided with centre bore, three centre bore up/down perforations.

Gap between the lateral wall of washer plate 6, magnet 5, and the madial wall of magnetic cover 4 is magnetic gap, voice coil loudspeaker voice coil 7 in the magnetic gap on Under it is of reciprocating vibration.

Preferred embodiment of the present utility model is these are only, protection domain of the present utility model is not intended to limit. All any modification, equivalent substitution and improvements made within spirit of the present utility model and principle etc., are all contained in this practicality new In the protection domain of type.

Claims (10)

1. a kind of diaphragm of loudspeaker, including central part and edge part, the central part and edge part junction are annular recess, Depressed part lower section connection voice coil loudspeaker voice coil, it is characterised in that the annular recess is evenly equipped with several reinforcements, the reinforcement to Upper projection, reinforcement is internally formed channel connection central part and edge part overlay area, the reinforcement, central part and edge part It is made into integration.

2. the diaphragm of loudspeaker according to claim 1, it is characterised in that the diaphragm of loudspeaker is circular or Long Circle, Cross section in the middle part of the reinforcement is arc.

3. the diaphragm of loudspeaker according to claim 1, it is characterised in that the reinforcement is located at central part and edge part Part is isometric, or positioned at edge part length more than positioned at central part length.

4. the diaphragm of loudspeaker according to claim 1, it is characterised in that the reinforcement top is the arc for raising up Shape, or be the arc to lower recess.

5. a kind of loudspeaker, it is characterised in that be provided with the diaphragm of loudspeaker described in claim any one of 1-4, it is described to raise one's voice Connection breaking between the depressed part and voice coil loudspeaker voice coil of device vibrating diaphragm.

6. loudspeaker according to claim 5, it is characterised in that in the central part and edge part of the vibrating diaphragm are covered and formed Outer two chambers, the reinforcement connects two chambers.

7. loudspeaker according to claim 5, it is characterised in that the loudspeaker includes ring support, the vibrating diaphragm Edge part is fixed on the bracket, and bearing is provided with trim ring.

8. loudspeaker according to claim 7, it is characterised in that the ring support middle part is provided with magnetic cover, the magnetic Magnet is provided with cover, magnet top is provided with washer plate, and the magnetic cover, magnet and washer plate are located at vibrating diaphragm lower section.

9. loudspeaker according to claim 8, it is characterised in that the washer plate, magnet and magnetic cover are provided with center Hole, three centre bore up/down perforations.

10. loudspeaker according to claim 8, it is characterised in that the washer plate, the lateral wall of magnet, with the magnetic Gap between the madial wall of cover is magnetic gap, and the voice coil loudspeaker voice coil up and down reciprocatingly vibrates in magnetic gap.