CN205883575U - Compact moving -iron receiver - Google Patents
Compact moving -iron receiver Download PDFInfo
- Publication number
- CN205883575U CN205883575U CN201620754941.9U CN201620754941U CN205883575U CN 205883575 U CN205883575 U CN 205883575U CN 201620754941 U CN201620754941 U CN 201620754941U CN 205883575 U CN205883575 U CN 205883575U
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- China
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- upper cover
- receiver
- lower cover
- pcb board
- vibrating diaphragm
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Abstract
The utility model discloses a compact moving -iron receiver, including electromagnetic shield shell, vibrating diaphragm, coil, PCB board, its characterized in that: upper cover and lower cover that the electromagnetic shield shell is in the same place by the lock are constituteed, and the vibrating diaphragm is fixed and divide into ante -chamber and back cavity with electromagnetic shield shell inner space in the upper cover, and the space that forms between vibrating diaphragm and the upper cover roof is the ante -chamber, and the inside remaining space of electromagnetic shield shell is the back cavity, the upper cover is different with lower cover rear end length, is connected at upper cover and lower cover rear end vestibule terrace, and the PCB board is fixed on the step face. Shift out the PCB board from the product end, can make the inner space of back cavity more strengthen, compare with the receiver among the prior art, under the effective same volume circumstances of back cavity, can with the external dimensions of product do littleer, make the receiver can use in littleer space, the range of application is wider, has guaranteed the receiver quality simultaneously.
Description
Technical field
This utility model devises a kind of Novel receiver structure.
Background technology
Traditional moving-iron receiver is the sounding component that a kind of efficiency is the highest, mainly as sonifer, earphone and similar product
The voice output element of product.Operation principle: under the effect of tone currents, the tongue being in magnetic field can move up and down, from
And drive vibrating diaphragm up-down vibration to send sound.The response curve of sound be receiver most basic be also the technology of most critical
Index.
Using the music earphone that moving-iron receiver makes, in order to improve sense of hearing, in moving-iron receiver designs, expectation strengthens
Back cavity volume promotes the low frequency sensitivity in response curve, and reduces distortion.But it is at present in the actual production of receiver, called
The pcb board of device is typically pasted onto receiver's tail end, and in the design that back cavity becomes big, the total length of product natively to become big, then
Plus the pcb board of tail end, product total length is longer, and this will serve trouble to the application band of terminal client.
Utility model content
The purpose of this utility model is to provide a kind of compact moving-iron receiver, improves in moving-iron receiver response curve
Low frequency sensitivity, reduce low-frequency distortion.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is:
A kind of compact moving-iron receiver, including electromagnetic shielding shell, vibrating diaphragm, coil, pcb board, it is characterised in that: electromagnetic screen
Cover shell to be made up of the upper cover snapped together and lower cover, before electromagnetic shielding shell inner space is divided in being fixed on upper cover by vibrating diaphragm
Chamber and back cavity, the space formed between vibrating diaphragm and upper lid top panel is ante-chamber, and the internal remaining space of electromagnetic shielding shell is back cavity；
Upper cover is different with lower cover back-end length, is connected by step surface with lower cover back-end at upper cover, and pcb board is fixed on step surface.
Pcb board is removed from product end, the inner space of back cavity can be made more to strengthen, with receiver of the prior art
Comparing, under back cavity effective volume same case, that can the external dimensions of product be done is less, makes receiver to apply
In less space, range of application is wider, ensure that receiver's mass simultaneously.In the case of product external dimensions is identical, after
The effective volume in intracavity portion is bigger, is conducive to promoting the low frequency sensitivity of moving-iron receiver, reduces low-frequency distortion, can be for not
Particular design is carried out with the different demands of product.
As a kind of preferred version of Novel receiver described in the utility model, step surface has perforate, coil
Lead-in wire is through perforate and is welded on the pcb board on step surface,
As a kind of preferred version of Novel receiver described in the utility model, described upper cover and lower cover width phase
With, telephone receiver structure is more symmetrical, is suitable on the product that installing space is more regular using.
As a kind of preferred version of Novel receiver described in the utility model, described upper cover and lower cover width not
With, according to practical situation, adjust upper cover or the width of lower cover, it is achieved ante-chamber and the change of rear cavity space, and then change receiver
Performance, on the irregular product of some installing spaces, this receiver makes space availability ratio higher, and product structure more steps up
Gather.
As a kind of preferred version of Novel receiver described in the utility model, described upper cover back-end length is less than down
Cover back-end length, the end face of lower cover back-end is step surface, and pcb board is fixed on this step surface.
As a kind of preferred version of Novel receiver described in the utility model, under described upper cover back-end length is more than
Cover back-end length, the bottom surface of upper cover back-end is step surface, and pcb board is fixed on this step surface.
Beneficial effect:
Novel receiver disclosed in this utility model, by electromagnetic shielding shell shape being improved, and fixes pcb board
Outside electromagnetic shielding shell, under conditions of receiver's equal length, it is bigger that ante-chamber or back cavity can design, and can improve
The low frequency sensitivity of receiver response curve, reduces distortion, such that it is able to design the receiver of more excellent performance.
Accompanying drawing explanation
Fig. 1 is the Novel receiver schematic diagram described in embodiment 1；
Fig. 2 is Novel receiver longitudinal cross-section schematic diagram in embodiment 1；
Fig. 3 is the Novel receiver schematic diagram described in embodiment 2；
Fig. 4 is Novel receiver longitudinal cross-section schematic diagram in embodiment 2.
1, electromagnetic shielding shell 1.1, upper cover 1.2, lower cover 1a, ante-chamber 1b, back cavity 2, vibrating diaphragm 3, coil 4, pcb board
5, step surface 6, connecting rod 7, Magnet 8, tongue
Detailed description of the invention
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
In this utility model " on ", D score, "left", "right" with by during receiver's sound hole horizontal positioned to the left
On " ", D score, "left", "right" direction identical, " front end " refers to the position near sound tube, and rear end refers to away from sound tube
Position.Electromagnetic shielding shell inner chamber more than vibrating diaphragm is ante-chamber, and the electromagnetic shielding shell inner chamber below vibrating diaphragm is back cavity.
Embodiment 1
As shown in Figure 1, 2, a kind of compact moving-iron receiver, including electromagnetic shielding shell 1, vibrating diaphragm 2, coil 3, pcb board 4,
Connecting rod 6, Magnet 7, tongue 8, electromagnetic shielding shell 1 is made up of the upper cover 1.1 snapped together and lower cover 1.2, and vibrating diaphragm 2 is fixed
In upper cover 1.1, electromagnetic shielding shell inner space is divided into ante-chamber 1a and back cavity 1b, is formed between vibrating diaphragm 2 and upper lid top panel
Space is ante-chamber 1a, and the internal remaining space of electromagnetic shielding shell is back cavity 1b, and coil 3, Magnet 7, tongue 8 are arranged on back cavity 1b
In, connecting rod 6 one end is fixed on tongue 8 end, and the other end is connected with vibrating diaphragm 2.
Upper cover 1.1 is identical with the width of lower cover 1.2, and the front end alignment of upper cover 1.1 remaining lid 1.2, upper cover back-end length is less than
Lower cover back-end length, the end face of lower cover back-end is step surface 5, and step surface 5 can be one-body molded with lower cover, and step surface 5 can also
Being a thin cover plate, thin cover plate surrounding is fixedly connected to form one by welding procedure and upper cover and lower cover and closes entirety, and makes
Preventing gas leakage with glue sealing, carry out perforate on thin cover plate, drawn by the lead-in wire of coil, pcb board is fixed on step surface 5,
Lead-out wires of coil is welded on pcb board 4.
Pcb board is removed from product end, the inner space of back cavity can be made more to strengthen, with receiver of the prior art
Comparing, under back cavity effective volume same case, that can the external dimensions of product be done is less, makes receiver to apply
In less space, range of application is wider, ensure that receiver's mass simultaneously.In the case of product external dimensions is identical, after
The effective volume in intracavity portion is bigger, is conducive to promoting the low frequency sensitivity of moving-iron receiver, reduces low-frequency distortion, can be for not
Particular design is carried out with the different demands of product.
Embodiment 2
As shown in Figure 3,4, a kind of compact moving-iron receiver, including electromagnetic shielding shell 1, vibrating diaphragm 2, coil 3, pcb board 4,
Connecting rod 6, Magnet 7, tongue 8, electromagnetic shielding shell 1 is made up of the upper cover 1.1 snapped together and lower cover 1.2, and vibrating diaphragm 2 is fixed
In upper cover 1.1, electromagnetic shielding shell inner space is divided into ante-chamber 1a and back cavity 1b, is formed between vibrating diaphragm 2 and upper lid top panel
Space is ante-chamber 1a, and the internal remaining space of electromagnetic shielding shell is back cavity 1b, and coil 3, Magnet 7, tongue 8 are arranged on back cavity 1b
In, connecting rod 6 one end is fixed on tongue 8 end, and the other end is connected with vibrating diaphragm 2.
Upper cover 1.1 is identical with the width of lower cover 1.2, and the front end alignment of upper cover 1.1 remaining lid 1.2, upper cover back-end length is more than
Lower cover back-end length, the bottom surface of upper cover back-end is step surface 5, and pcb board 4 is fixed on this step surface 5.
Pcb board is fixed on side, decreases product length, be conducive to installing；On the premise of product equal length, can
To design ante-chamber or the bigger product of back cavity.
In above-mentioned two embodiment, upper cover 1.1 is identical with the width of lower cover 1.2, in actual design, and upper cover 1.1 and lower cover
The width of 1.2 can also be different, according to the actual requirements, are designed.
Although in description being illustrated embodiment of the present utility model, but these embodiments are intended only as carrying
Show, should not limit protection domain of the present utility model.Without departing from carrying out various omission in the range of this utility model objective, putting
Change and change should be included in protection domain of the present utility model.
Claims (6)
1. a compact moving-iron receiver, including electromagnetic shielding shell, vibrating diaphragm, coil, pcb board, it is characterised in that: electromagnetic shielding
Shell is made up of the upper cover snapped together and lower cover, and electromagnetic shielding shell inner space is divided into ante-chamber in being fixed on upper cover by vibrating diaphragm
And back cavity, the space formed between vibrating diaphragm and upper lid top panel is ante-chamber, and the internal remaining space of electromagnetic shielding shell is back cavity；On
Covering different with lower cover back-end length, be connected by step surface with lower cover back-end at upper cover, pcb board is fixed on step surface.
Compact moving-iron receiver the most according to claim 1, it is characterised in that: there is on step surface perforate, coil
Lead-in wire is through perforate and is welded on the pcb board on step surface.
Compact moving-iron receiver the most according to claim 1, it is characterised in that: described upper cover and lower cover width phase
With.
Compact moving-iron receiver the most according to claim 1, it is characterised in that: described upper cover and lower cover width are not
With.
5. according to the compact moving-iron receiver described in claim 3 or 4, it is characterised in that: described upper cover back-end length is little
In lower cover back-end length, the end face of lower cover back-end is step surface.
6. according to the compact moving-iron receiver described in claim 3 or 4, it is characterised in that: described upper cover back-end length is big
In lower cover back-end length, the bottom surface of upper cover back-end is step surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620754941.9U CN205883575U (en) | 2016-07-18 | 2016-07-18 | Compact moving -iron receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620754941.9U CN205883575U (en) | 2016-07-18 | 2016-07-18 | Compact moving -iron receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205883575U true CN205883575U (en) | 2017-01-11 |
Family
ID=57697683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620754941.9U Active CN205883575U (en) | 2016-07-18 | 2016-07-18 | Compact moving -iron receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205883575U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105959888A (en) * | 2016-07-18 | 2016-09-21 | 苏州亿欧得电子有限公司 | Compact moving-iron telephone receiver, |
| CN114025280A (en) * | 2021-11-30 | 2022-02-08 | 苏州迪倍电子科技有限公司 | Moving-iron horn diaphragm with small front cavity |
-
2016
- 2016-07-18 CN CN201620754941.9U patent/CN205883575U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105959888A (en) * | 2016-07-18 | 2016-09-21 | 苏州亿欧得电子有限公司 | Compact moving-iron telephone receiver, |
| CN114025280A (en) * | 2021-11-30 | 2022-02-08 | 苏州迪倍电子科技有限公司 | Moving-iron horn diaphragm with small front cavity |
| CN114025280B (en) * | 2021-11-30 | 2024-04-09 | 苏州迪倍电子科技有限公司 | Moving iron horn diaphragm with small front cavity |
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| GR01 | Patent grant |