CN208386917U - A kind of diaphragm, vibrating diaphragm and moving-iron receiver - Google Patents

Abstract

The utility model embodiment is related to receiver field, and providing a kind of diaphragm, vibrating diaphragm and moving-iron receiver, the diaphragm includes: substrate, and the substrate is made by plastic material；Coating, plating are set to the surface of the substrate, and the coating is that carbon-coating significantly improves the rigidity of the diaphragm in the case where not increasing the substrate mass.

Description

A kind of diaphragm, vibrating diaphragm and moving-iron receiver

Technical field

The utility model embodiment is related to receiver field more particularly to a kind of diaphragm, vibrating diaphragm and moving-iron receiver.

Background technique

Moving-iron receiver, also known as dynamic iron loudspeaker, are a kind of sounding components.It is set on the basis of inductor loudspeaker Meter plays high-precision micrometer-nanometer processing technology by the micromation of part and the use of new material and maintains its acoustic-electric conversion ratio High characteristic, and overcome acoustic-electric conversion frequency response and be distorted big deficiency.Due to spies such as its is small in size, low-power consumption, high outputs Point is widely used in the fields such as hearing aid, covert communications, high-fidelity headphone.

Existing moving-iron receiver generally comprises vibrating diaphragm, we are when using dynamic iron earphone, the sound heard from earphone From the of reciprocating vibration of vibrating diaphragm.Vibrating diaphragm generally comprises bracket, the diaphragm on bracket and the vibration piece on diaphragm.It is existing Diaphragm generally comprise the diaphragm as made from metal material and the diaphragm as made from plastic material, diaphragm made from metal material is All-metal vibrating diaphragm is able to ascend parsing transient state and high frequency extends, weight is big, leads to vibrating diaphragm although having rigidity well The time of response and the time of reset are very long, and transient response is insensitive, and resonance makes the extension of high frequency become poor, usually lose Very.

Inventor has found during realizing the utility model embodiment, diaphragm quality made from existing plastic material Gently, also very thin, so it is small for the promotion of the mechanical performance of the vibrating diaphragm entirety of moving-iron receiver, as made from plastic material Diaphragm lacks rigidity, so that the sound that receiver generates is just not flexible enough.But simple is mentioned by increasing the quality of diaphragm The rigidity of high diaphragm, and vibrating diaphragm transient response can be led to problems such as greatly insensitive because of weight.

Utility model content

In order to solve the problems, such as that diaphragm made from plastic material in the prior art lacks rigidity, the utility model embodiment A kind of good diaphragm of rigidity, and the vibrating diaphragm comprising the diaphragm and the moving-iron receiver comprising the vibrating diaphragm are provided.

In a first aspect, the utility model provides a kind of diaphragm, comprising:

Substrate, the substrate are made by plastic material；

Coating, plating are set to the surface of the substrate, and the coating is carbon-coating, for enhancing the rigidity of the substrate.

Optionally, the coating with a thickness of within 0.1 micron.

Optionally, the substrate includes main part and lug boss, and the main part is in tabular, and the lug boss is described in The normal direction of main part described in the outer lateral edge of main part extends, and the side of the lug boss is provided with opening.

Optionally, the main part with a thickness of 5 microns -10 microns.

Second aspect, the utility model provide a kind of vibrating diaphragm, comprising:

Bracket is the cyclic structure of middle opening；

Diaphragm is located on the bracket, and the diaphragm includes substrate and coating, and the substrate is made by plastic material, institute The surface that coating plating is set to the substrate is stated, the coating is carbon-coating, for enhancing the rigidity of the substrate；

Shake piece, is located on the diaphragm, and the vibration piece is located at the opposite sides of the diaphragm with the bracket.

Optionally, the coating with a thickness of within 0.1 micron.

Optionally, the substrate includes main part and lug boss, and the main part is in tabular, and the lug boss is described in The normal direction of main part described in the outer lateral edge of main part extends, and the side of the lug boss is provided with opening, the lug boss with The main part constitutes an accommodation space, and the vibration piece is contained in the accommodation space.

Optionally, the main part with a thickness of 5 microns -10 microns.

Optionally, the first fixation hole is provided on the main part, first fixation hole and the opening are located at The second fixation hole, second fixation hole and first fixation hole is arranged in the opposite sides of the main part, the vibration on piece It is connected.

The third aspect, the utility model provide a kind of moving-iron receiver, comprising:

Shell；

Vibrating diaphragm is contained in the shell, and the vibrating diaphragm includes:

Bracket is the cyclic structure of middle opening；

Diaphragm is located on the bracket, and the diaphragm includes substrate and coating, and the substrate is made by plastic material, institute The surface that coating plating is set to the substrate is stated, the coating is carbon-coating, for enhancing the rigidity of the substrate；

Shake piece, is located on the diaphragm, and the vibration piece is located at the opposite sides of the diaphragm with the bracket.

Compared with prior art, diaphragm provided by the embodiment of the utility model, the surface of the substrate as made from plastic cement Plating sets carbon-coating, in the case where not increasing the substrate mass, significantly improves the rigidity of the diaphragm.

Detailed description of the invention

Fig. 1 is the perspective view for the diaphragm that the utility model embodiment one provides；

Fig. 2 is the stereogram exploded view for the vibrating diaphragm that the utility model embodiment two provides；

Fig. 3 is the stereogram exploded view for the moving-iron receiver that the utility model embodiment three provides；

Fig. 4 is the stereogram exploded view of the shell for the moving-iron receiver that embodiment three provides；

Fig. 5 is the perspective view of the motor sub-assembly for the moving-iron receiver that embodiment three provides；

Fig. 6 is the perspective view of the blade of a sword iron for the moving-iron receiver that embodiment three provides；

Fig. 7 is the three-dimensional cutaway view for the moving-iron receiver that embodiment three provides；

Fig. 8 is the perspective view of the coil for the moving-iron receiver that embodiment three provides；

Fig. 9 is the perspective view of the reed for the moving-iron receiver that embodiment three provides.

The drawing reference numeral of specific embodiment illustrates:

Specific embodiment

For the ease of understanding the utility model, in the following with reference to the drawings and specific embodiments, the utility model is carried out more detailed Thin explanation.It should be noted that it can be directly in another element when element is expressed " being fixed on " another element Upper or placed in the middle there may be one or more therebetween elements.When an element is expressed " buckle " another element, it can To be directly to be snapped into another element or elements placed in the middle there may be one or more therebetween.This specification is used Term " on ", "lower", "left", "right" and similar statement for illustrative purposes only.

Unless otherwise defined, technical and scientific term all used in this specification and the skill for belonging to the utility model The normally understood meaning of the technical staff in art field is identical.Term used in the description of the utility model is intended merely to The purpose for describing specific embodiment is not intended to limitation the utility model.Term "and/or" used in this specification includes Any and all combinations of one or more related listed items.

Embodiment one

As shown in Figure 1, the diaphragm 131 includes that substrate (is not marked for the diaphragm 131 that the utility model embodiment one provides Number) and plating be set to the substrate surface coating (not labeled).

The substrate is made by plastic material, including main part 1310 and lug boss 1311, and the main part 1310 is in flat Plate, the main part 1310 with a thickness of 5 microns -10 microns, be provided on the main part 1310 through the main part First fixation hole 1312 of 1310 two sides.

The normal direction of main part 1310 described in outer lateral edge of the lug boss 1311 from the main part 1310 extend and At the side of the lug boss 1311 is provided with opening (not labeled), and the opening and first fixation hole 1312 distinguish position In the opposite sides of the main part 1310, the lug boss 1311 and the main part 1310 constitute an accommodation space.

The coating is carbon-coating, the coating with a thickness of within 0.1 micron, the coating is for enhancing the substrate Rigidity, the coating plating are set to the surface of the main part 1310 and the surface of the lug boss 1311.

Carbon is heated into carbon molecules steam, then allows carbon molecules steam to form coating in plastic rubber substrate surface crystallization, and will The thickness control of coating within 0.1 micron, and plastic rubber substrate with a thickness of 5 microns -10 microns so that the quality of the coating Quality relative to the substrate can be ignored, i.e., plates carbon-coating, the quality of the diaphragm 131 on the surface of the substrate Do not increase how much, meanwhile, the rigidity of the diaphragm 131 has been got back significant raising, that is, has accomplished do not improving the film In the case where the quality of piece 131, the rigidity of the diaphragm 131 is significantly improved.

It is understood that the coating is also possible to the metal material of the high intensity such as titanium, beryllium in some other embodiments Material.

Embodiment two

As shown in Fig. 2, the vibrating diaphragm 13 includes bracket 132, diaphragm for the vibrating diaphragm 13 that the utility model embodiment two provides 131 and vibration piece 133, wherein the diaphragm 131 is identical as in embodiment one, and details are not described herein.

The bracket 132 is the cyclic structure of middle opening, and the diaphragm 131 is located on the bracket 132.

The vibration piece 133 is located on the diaphragm 131, and the vibration piece 133 is located at the diaphragm with the bracket 132 131 opposite sides, the vibration piece 133 are contained in the accommodation space.The second fixation hole is provided on the vibration piece 133 1330, second fixation hole 1330 is connected with first fixation hole 1312, to far from the film among the vibration piece 133 The direction protrusion of piece 131.

Embodiment three

As shown in figure 3, the moving-iron receiver 100 is main for the moving-iron receiver 100 that the utility model embodiment three provides Will include shell 11, motor sub-assembly 12, vibrating diaphragm 13, connecting rod 14 and circuit board 15, the shell 11 accommodate the motor sub-assembly 12, 11 outside of shell is fixed in the vibrating diaphragm 13 and the connecting rod 14, the fitting of circuit board 15.

Wherein, the vibrating diaphragm 13 is identical as in embodiment two, and details are not described herein.

As shown in Figure 3 and Figure 4, the shell 11 includes first shell 111 and second shell 112, the first shell 111 Including the first noumenon 1110, from the two sides of the first noumenon 1110 towards two first of the opposite extension of the second shell 112 Side wall 1111 and two second sidewalls 1112 for connecting described two the first side walls 1111, from described two the first side walls 1111 Upper surface downward recessed fluted 1113, one of them of the second sidewall 1112 is provided with through slot 1114.

The second shell 112 includes the second ontology 1120, from the two sides of second ontology 1120 towards the first shell The opposite two third side walls 1121 extended of body 111 and two the 4th side walls 1122 for connecting described two third side walls 1121, The second shell 112 and the first shell 111 mutually fasten, i.e., the described the first side wall 1111 and the third side wall 1121 It abuts against, the second sidewall 1112 and the 4th side wall 1122 abut against, to form receiving 12 He of motor sub-assembly The accommodating space 113 of the vibrating diaphragm 13.

As shown in figure 5, the motor sub-assembly 12 include blade of a sword iron 121, the first magnet 122, the second magnet 123, coil 124, Pin 125 and reed 126.As shown in Figures 5 to 7, the blade of a sword iron 121 includes flat base portion 1210, from the base portion Two extensions 1211 that 1210 two sides extend to second ontology 1120 respectively, from each extension 1211 to flat Row has each extended over a fixed part 1212, the fixed part in the direction of the base portion 1210 and the separate base portion 1210 1212 are contained in the groove 1113 and are fixed on the groove 1113, the blade of a sword iron 121, described two the first side walls 1111 It surrounds to form accommodating space 16 with the first noumenon 1110, the blade of a sword iron 121, described two the first side walls 1111 and described One ontology 1110 is made by iron-nickel alloy, constitutes the magnetic conductive loop of a closed ring.

First magnet 122 is identical with the structure of second magnet 123, is in tabular, first magnet 122 It is contained in the accommodating space 16 and is fixed on the first noumenon 1110, second magnet 123 is contained in the accommodating It space 16 and is fixed on the base portion 1210.First magnet 122 and second magnet 123 are permanent magnet, described Constant magnetic field is formed between first magnet 122 and second magnet 123, the blade of a sword iron 121, described two are passed through in the magnetic field The magnetic circuit for the closed ring that a the first side wall 1111 and the first noumenon 1110 are constituted and strengthened.

As shown in figure 8, the coil 124 is cyclic structure, through-hole 1240, the line are provided among the coil 124 Circle 124 is the carrier of electric current.

As shown in figure 5, described two pins 125 be set on the coil 124 separated from each other and with the coil 124 It is electrically connected, the coil 124 is connected by described two pins 125 with external cabling.The pin 125 is elongate column Structure is made by the material of high conductivity, for example gold and billon, silver and silver alloy, copper and copper alloy.

As shown in figures 7 and 9, the reed 126 include flat holding parts 1260, flat vibration section 1261 and The interconnecting piece 1262 of the arc of the holding parts 1260 and the vibration section 1261 is connected, the vibration section 1261 passes through the line The through-hole 1240 of circle 124 and it is partial be contained in the accommodating space 16, the base portion is fixed in the fitting of holding parts 1260 On 1210.The reed 126 is made by the material of high permeability, for example by nickel (Ni, Nickel), niobium (Nb, Niobium), carbon The alloy material of (C, carbon) and iron (Fe, Ferrum) composition is made.

The vibrating diaphragm 13 is located at the top of the holding parts 1260, and the connecting rod 14 is used to connect the vibration of the reed 126 Dynamic portion 1261 and the vibrating diaphragm 13, the connecting rod 14 pass through first fixation hole 1312 and 1330 He of the second fixation hole The vibrating diaphragm 13 is fixedly connected, and the vibrating diaphragm 13 makes a sound with the reciprocating motion of the vibration section 1261.

The circuit board 15 is fixed on the outside for being provided with the second sidewall 1112 of through slot 1114, and the circuit board 15 cover the through slot 1114 connect with the pin 125, and the circuit board 15 is for receiving external command and controlling the line The size of the electric current of feed-in in circle 124, to control the size for the sound that the moving-iron receiver 100 issues.

When assembling the moving-iron receiver 100, first first magnet 122 is fixed on the first noumenon 1110, And the circuit board 15 is fixed on to the outside of the second sidewall 1112 for being provided with through slot 1114；The coil 124 is set It is placed in the side of the blade of a sword iron 121, described two pins 125 are set on the coil 124, then by the reed 126 Vibration section 1261 pass through the coil 124 through-hole 1240, the blade of a sword iron 121 is fixed on by the fixed part 1212 Second magnet 123 is fixed on the other side of the base portion 1210 by the side of base portion 1210；Vibrating diaphragm 13 is passed through into connecting rod 14 And it is connected with the vibration section 1261 of the reed 126；The pin 125 of motor sub-assembly 12 is passed through in the second sidewall 1112 Through slot 1114, to realize the connection of the pin 125 with the circuit board 15；Then by the fixed part of the blade of a sword iron 121 1212 accommodate and are fixed on the groove 1113 of the first side wall 1111；Finally by the second shell 112 and described first Shell 111 is fastened, to complete the assembling of the moving-iron receiver 100.

When not having tone currents to pass through in coil 124, the vibration section 1261 of reed 126 is in the first magnet 122 and second Equilibrium state is in the stationary magnetic field that magnet 123 provides；When passing through audible communication electric current in coil 124, coil 124 is because becoming The electric current of change generates the Lorentz force of variation, and vibration section 1261 moves back and forth under the driving of Lorentz force, passes through 14 band of connecting rod Dynamic vibrating diaphragm 13 generates sound wave, to complete the conversion of electric signal to acoustical signal.

It is understood that the groove 1113 also can be set in third side wall 1121 in some other embodiments On.

It is understood that the blade of a sword iron 121 is in tabular, i.e., the described base portion 1210, institute in some other embodiments It is parallel and coplanar to state extension 1211, the fixed part 1212, the fixed part 1212 accommodates and is fixed on the groove 1113 On.

It is understood that the blade of a sword iron 121 is in tabular, i.e., the described base portion 1210, institute in some other embodiments It is parallel and coplanar to state extension 1211, the fixed part 1212, the blade of a sword iron 121 be located at described two the first side walls 1111 it Between, the fixed part 1212 is fixed on described two the first side walls 1111, at this point, the first side wall 1111 or the third The not set groove 1113 of side wall 1121.At this point, the first side wall 1111 and the fixed part 1212 can be by bondings, radium-shine Being fixedly connected between the blade of a sword iron 121 and the first shell 111 is realized in welding.

Compared with prior art, the blade of a sword iron 121, the described two the first side walls of the offer of the utility model embodiment three 1111 and the first noumenon 1110 surround the magnetic conductive loop to form closed ring, structure is simple, reduces the blade of a sword iron 121 Manufacturing cost, and then reduce the manufacturing cost of the moving-iron receiver 100, since the blade of a sword iron 121 is open knot Structure improves the packaging efficiency of the moving-iron receiver 100；And the whole height of the moving-iron receiver 100 is reduced, favorably In the development trend of the moving-iron receiver 100 slimming.

It should be noted that giving the preferable implementation of the utility model in the specification and its attached drawing of the utility model Example, still, the utility model can be realized by many different forms, however it is not limited to which this specification is described to be implemented Example, for these embodiments not as the additional limitation to the content of the present invention, the purpose for improving these embodiments is made to this reality Understanding with novel disclosure is more thorough and comprehensive.Also, above-mentioned each technical characteristic continues to be combined with each other, and is formed not upper The various embodiments that face is enumerated are accordingly to be regarded as the range of the utility model specification record；Further, to ordinary skill For personnel, it can be modified or changed according to the above description, and all to should belong to this practical new for all these modifications and variations The protection scope of type appended claims.

Claims (10)

1. a kind of diaphragm characterized by comprising

Substrate, the substrate are made by plastic material；

Coating, plating are set to the surface of the substrate, and the coating is carbon-coating, for enhancing the rigidity of the substrate.

2. diaphragm according to claim 1, which is characterized in that the coating with a thickness of 0.01 to 0.1 micron.

3. diaphragm according to claim 2, which is characterized in that the substrate includes main part and lug boss, the main body Portion is in tabular, and the lug boss extends from the normal direction of main part described in lateral edge outside the main part, the lug boss Side is provided with opening.

4. diaphragm according to claim 3, which is characterized in that the main part with a thickness of 5 microns -10 microns.

5. a kind of vibrating diaphragm characterized by comprising

Bracket is the cyclic structure of middle opening；

Diaphragm is located on the bracket, and the diaphragm includes substrate and coating, and the substrate is made by plastic material, the plating Layer plating is set to the surface of the substrate, and the coating is carbon-coating, for enhancing the rigidity of the substrate；

Shake piece, is located on the diaphragm, and the vibration piece is located at the opposite sides of the diaphragm with the bracket.

6. vibrating diaphragm according to claim 5, which is characterized in that the coating with a thickness of within 0.1 micron.

7. vibrating diaphragm according to claim 6, which is characterized in that the substrate includes main part and lug boss, the main body Portion is in tabular, and the lug boss extends from the normal direction of main part described in lateral edge outside the main part, the lug boss Side is provided with opening, and the lug boss and the main part constitute an accommodation space, and it is empty that the vibration piece is contained in the receiving In.

8. vibrating diaphragm according to claim 7, which is characterized in that the main part with a thickness of 5 microns -10 microns.

9. vibrating diaphragm according to claim 7, which is characterized in that it is provided with the first fixation hole on the main part, described One fixation hole and described be open are located at the opposite sides of the main part, and the second fixation hole is arranged in the vibration on piece, described Second fixation hole is connected with first fixation hole.

10. a kind of moving-iron receiver characterized by comprising

Shell；

Vibrating diaphragm is contained in the shell, and the vibrating diaphragm includes:

Bracket is the cyclic structure of middle opening；

Diaphragm is located on the bracket, and the diaphragm includes substrate and coating, and the substrate is made by plastic material, the plating Layer plating is set to the surface of the substrate, and the coating is carbon-coating, for enhancing the rigidity of the substrate；

Shake piece, is located on the diaphragm, and the vibration piece is located at the opposite sides of the diaphragm with the bracket.