CN108447665A - A kind of controllable impedance device assembly and speaker - Google Patents
A kind of controllable impedance device assembly and speaker Download PDFInfo
- Publication number
- CN108447665A CN108447665A CN201810067576.8A CN201810067576A CN108447665A CN 108447665 A CN108447665 A CN 108447665A CN 201810067576 A CN201810067576 A CN 201810067576A CN 108447665 A CN108447665 A CN 108447665A
- Authority
- CN
- China
- Prior art keywords
- coil
- impedance device
- device assembly
- controllable impedance
- inductor
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F21/00—Variable inductances or transformers of the signal type
- H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F21/00—Variable inductances or transformers of the signal type
- H01F21/12—Variable inductances or transformers of the signal type discontinuously variable, e.g. tapped
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/42—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a kind of controllable impedance device assembly and speakers, belong to field of electrical equipment.The controllable impedance device assembly includes：Inductor, variable resistance.Wherein, inductor includes：First coil and the second coil, first coil are used for after accessing operating circuit, so that the second coil is generated induced current, the both ends of the second coil are connected by conducting wire with variable resistance.Controllable impedance device assembly provided by the invention, by the way that first coil, the second coil, variable resistance is arranged, and the both ends of the second coil are connected by conducting wire with variable resistance, simultaneously after first coil accesses operating circuit, so that the second coil is generated induced current, when needing to change the inductance value of inductor in controllable impedance device assembly, only need to adjust variable resistance, it is easy to operate, and can avoid causing the waste of direct current.
Description
Technical field
The present invention relates to field of electrical equipment, more particularly to a kind of controllable impedance device assembly and speaker.
Background technology
Inductor is a kind of element for converting electrical energy into magnetic energy and storing magnetic energy, is the important set of electric system
At part.In the power system, with a large amount of accesses of nonlinear load, it may appear that the problems such as voltage fluctuation, harmonic pollution, and
In order to solve these problems, the inductance value of inductor must be adjusted in operation process.
The prior art provides a kind of inductor using pulsactor method adjusting inductance.Specifically, inductor includes：
Iron core, the first coil being wrapped on iron core and the second coil.Wherein, first coil is used for after accessing operating circuit (work
Electricity in circuit is alternating current), so that the second coil is generated induced current.When need adjust inductor inductance value when, only need to
It is passed through direct current in second coil, and changes the size of direct current, you can changes the degree of saturation of iron core, and then changes First Line
The inductance value size of circle completes the adjusting to inductor current amount.
The inventor finds that the existing technology has at least the following problems：
The prior art needs to lead to direct current to control coil, and constantly change when changing the size of inductor current amount
The size of direct current, it is complicated for operation, and the waste of direct current can be caused.
Invention content
An embodiment of the present invention provides a kind of controllable impedance device assembly and speakers, can solve above-mentioned technical problem.Specific skill
Art scheme is as follows：
In a first aspect, an embodiment of the present invention provides a kind of controllable impedance device assemblies, including：Inductor；
The inductor includes：First coil and the second coil；
The first coil is used for after accessing operating circuit, and second coil is made to generate induced current；
The controllable impedance device assembly further includes：Variable resistance；
It is connected with the variable resistance by conducting wire at the both ends of second coil.
In a kind of possible design, the first coil and second coil are air core coil；
Second coil is wrapped in the first coil；
Alternatively, the first coil is wrapped on second coil；
Alternatively, the first coil and second coil with around.
In a kind of possible design, the inductor further includes：Closed magnetic circuit iron core；
The first coil and second coil are wrapped on the closed magnetic circuit iron core.
In a kind of possible design, the inductor further includes：Open-flux path iron core；
The first coil is wrapped on the open-flux path iron core, and second coil is wrapped in the first coil；
Alternatively, second coil is wrapped on the open-flux path iron core, the first coil is wrapped in second line
On circle；
Alternatively, the first coil and second coil are simultaneously wound on the open-flux path iron core.
Second aspect, an embodiment of the present invention provides a kind of speakers, including：Frequency divider；
The frequency divider includes：Above-mentioned controllable impedance device assembly.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：
Controllable impedance device assembly provided in an embodiment of the present invention, by the way that first coil, the second coil, variable resistance is arranged
Device, and the both ends of the second coil are connected by conducting wire with variable resistance, while after first coil accesses operating circuit, making
Second coil generates induced current, when needing to change the inductance value of inductor in controllable impedance device assembly, need to only adjust variable
Resistor, it is easy to operate, and can avoid causing the waste of direct current.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the electrical block diagram of controllable impedance device assembly provided in an embodiment of the present invention.
Reference numeral indicates respectively：
1 first coil,
2 second coils,
3 variable resistances,
4 closed magnetic circuit iron cores.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
In a first aspect, an embodiment of the present invention provides a kind of controllable impedance device assemblies, and as shown in Fig. 1, the controllable impedance
Device assembly includes：Inductor, variable resistance 3.Wherein, inductor includes：First coil 1 and the second coil 2, first coil 1
For after accessing operating circuit, making the second coil 2 generate induced current, the both ends of the second coil 2 by conducting wire with can power transformation
Device 3 is hindered to connect.
It, (can by the access operating circuit of first coil 1 when needing to change the inductance value of inductor in controllable impedance device assembly
With understanding, what is be passed through at this time to first coil 1 is alternating current), so that the second coil 2 is generated induced current.Then, using can
Variohm 3 changes the resistance sizes of the second coil 3, to change the size of current on the second coil 3, and then changes the second coil
2 magnetic flux size realizes the adjusting to inductor current amount in controllable impedance device assembly at this time.Wherein, " work electricity
Road " refers to：Circuit where loading.
Controllable impedance device assembly provided in an embodiment of the present invention, by the way that first coil 1, the second coil 2, variable resistance is arranged
Device 3, and the both ends of the second coil 2 are connected by conducting wire with variable resistance 3, while accessing operating circuit in first coil 1
Afterwards, so that the second coil 2 is generated induced current, when needing to change the inductance value of inductor in controllable impedance device assembly, only need to adjust
Variable resistance 3 is saved, it is easy to operate, and can avoid causing the waste of direct current.
Wherein, variable resistance 3 (i.e. the adjustable resistor of resistance value), people in the art common for this field
Member can be obtained by purchased in market, for example, its can be Dongguan City Guo Ye Electronics Co., Ltd.s produce and sell can power transformation
Hinder device.
It should be noted that the inductor of various structures is suitable in controllable impedance device assembly provided in an embodiment of the present invention
With specifically：
As an example, first coil 1 and the second coil 2 can be disposed as air core coil, and, the second coil 2
It is wrapped in first coil 1.Alternatively, first coil 1 is wrapped on the second coil 2.Alternatively, first coil 1 and the second coil 2 are same
Around.
By so set, inductor is made to can be adapted for the wider occasion of frequency, ensureing that most of audio frequency can be suitable
Profit passes through.
Wherein, " with around " refers to：First coil 1 and the mixing of the second coil 2 are intertwined, and constitute one layer of air core coil
(above-mentioned：Second coil 2 is wrapped in first coil 1, alternatively, first coil 1 is wrapped on the second coil 2 in two kinds of situations,
First coil 1 and the second coil 2 constitute two layers of air core coil).In one possible implementation, it two conducting wires and discharges
It sets and is wound.
As another example, as shown in Fig. 1, inductor further includes：Closed magnetic circuit iron core 4.First coil 1 and the second line
Circle 2 is wrapped on closed magnetic circuit iron core 4.
When needing to change the inductance value of inductor in controllable impedance device assembly, first coil 1 is accessed into operating circuit, is made
Second coil 2 generates induced current.Then, the resistance sizes for changing the second coil 3 using variable resistance 3, to change second
Size of current on coil 3, and then change the magnetic flux size of closed magnetic circuit iron core 4, it realizes at this time to variable inductor group
The adjusting of inductor current amount in part.By so set, ensure that the magnetic resistance suffered by the inductor is smaller, magnetic induction intensity compared with
Greatly.
Wherein, the structure of closed magnetic circuit iron core 4 can be a variety of, for example, it can be loop configuration, or can be mutually right
The C-shaped configuration connect, or slot etc. is set on the side wall of loop configuration.
As another example, inductor further includes：Open-flux path iron core.First coil 1 is wrapped on open-flux path iron core, the
Two coil 2 is wrapped in first coil 1.Alternatively, the second coil 2 is wrapped on open-flux path iron core, first coil 1 is wrapped in second
On coil 2.Alternatively, first coil 1 and the second coil 2 are simultaneously wound on open-flux path iron core.
When needing to change the inductance value of inductor in controllable impedance device assembly, first coil 1 is accessed into operating circuit, is made
Second coil 2 generates induced current.Then, the resistance sizes for changing the second coil 3 using variable resistance 3, to change second
Size of current on coil 3, and then change the magnetic flux size of open-flux path iron core, it realizes at this time to controllable impedance device assembly
The adjusting of middle inductor current amount.By so set, ensure that the magnetic resistance suffered by the inductor is smaller, magnetic induction intensity compared with
Greatly.By so set, ensure that the magnetic resistance suffered by the inductor is larger, magnetic induction intensity is smaller.
Wherein, the structure of open-flux path iron core can be rod-like structure.
Second aspect, an embodiment of the present invention provides a kind of speakers, including：Frequency divider.The frequency divider includes：It is above-mentioned adjustable
Electrical inductor assembly.
It will be appreciated by persons skilled in the art that the speaker equally has the advantages that the above-mentioned of controllable impedance device assembly, lead to
It crosses using controllable impedance device assembly provided by the invention, user can make frequency divider can be with according to personal like's adjusting inductance
More frequency dividings preferably are carried out to speaker, keep the frequency that speaker reacts wider.
The structure of speaker is common for this field, and setting frequency divider and controllable impedance device assembly are also in speaker
This field is common.For example, the structure of speaker can be with referenced patent document：A kind of Hi-Fi sound-box (application number
CN00240314.5) etc..
The foregoing is merely presently preferred embodiments of the present invention, the protection domain being not intended to limit the invention, all in this hair
Within bright spirit and principle, any modification, equivalent replacement, improvement and so on should be included in protection scope of the present invention
Within.
Claims (5)
1. a kind of controllable impedance device assembly, including：Inductor；
The inductor includes：First coil (1) and the second coil (2)；
The first coil (1) is used for after accessing operating circuit, and second coil (2) is made to generate induced current；
It is characterized in that, the controllable impedance device assembly further includes：Variable resistance (3)；
It is connected with the variable resistance (3) by conducting wire at the both ends of second coil (2).
2. controllable impedance device assembly according to claim 1, which is characterized in that the first coil (1) and described second
Coil (2) is air core coil；
Second coil (2) is wrapped in the first coil (1)；
Alternatively, the first coil (1) is wrapped on second coil (2)；
Alternatively, the first coil (1) and second coil (2) with around.
3. controllable impedance device assembly according to claim 1, which is characterized in that the inductor further includes：Closed magnetic circuit iron
Core (4)；
The first coil (1) and second coil (2) are wrapped on the closed magnetic circuit iron core (4).
4. controllable impedance device assembly according to claim 1, which is characterized in that the inductor further includes：Open-flux path iron
Core；
The first coil (1) is wrapped on the open-flux path iron core, and second coil (2) is wrapped in the first coil
(1) on；
Alternatively, second coil (2) is wrapped on the open-flux path iron core, the first coil (1) is wrapped in described second
On coil (2)；
Alternatively, the first coil (1) and second coil (2) are simultaneously wound on the open-flux path iron core.
5. a kind of speaker, including：Frequency divider；
The frequency divider includes：Claim 1-4 any one of them controllable impedance device assemblies.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810067576.8A CN108447665A (en) | 2018-01-24 | 2018-01-24 | A kind of controllable impedance device assembly and speaker |
| PCT/CN2019/072866 WO2019144887A1 (en) | 2018-01-24 | 2019-01-23 | Inductor assembly and speaker |
| EP19743230.5A EP3736840B1 (en) | 2018-01-24 | 2019-01-23 | Inductor assembly and speaker |
| CN201980021874.6A CN111954913A (en) | 2018-01-24 | 2019-01-23 | Inductor subassembly and audio amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810067576.8A CN108447665A (en) | 2018-01-24 | 2018-01-24 | A kind of controllable impedance device assembly and speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108447665A true CN108447665A (en) | 2018-08-24 |
Family
ID=63191298
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810067576.8A Pending CN108447665A (en) | 2018-01-24 | 2018-01-24 | A kind of controllable impedance device assembly and speaker |
| CN201980021874.6A Pending CN111954913A (en) | 2018-01-24 | 2019-01-23 | Inductor subassembly and audio amplifier |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980021874.6A Pending CN111954913A (en) | 2018-01-24 | 2019-01-23 | Inductor subassembly and audio amplifier |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3736840B1 (en) |
| CN (2) | CN108447665A (en) |
| WO (1) | WO2019144887A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019144887A1 (en) * | 2018-01-24 | 2019-08-01 | 王静然 | Inductor assembly and speaker |
| CN110379611A (en) * | 2019-06-26 | 2019-10-25 | 东南大学 | A kind of DC current control inductance tuner with permanent magnet bias |
| CN110957659A (en) * | 2019-11-20 | 2020-04-03 | 邹虚 | Movable transformer substation |
| WO2024114435A1 (en) * | 2022-11-28 | 2024-06-06 | 王静然 | Inductor, and loudspeaker assembly |
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| JP2004140165A (en) * | 2002-10-17 | 2004-05-13 | Matsushita Electric Ind Co Ltd | Variable inductor |
| CN201319287Y (en) * | 2008-12-03 | 2009-09-30 | 上海铁路通信工厂 | Heavy-current hollow coil |
| CN102237172A (en) * | 2010-04-26 | 2011-11-09 | 台湾积体电路制造股份有限公司 | Continuously tunable inductor with variable resistors |
| CN107509134A (en) * | 2017-10-10 | 2017-12-22 | 李龙根 | A kind of earphone second order passive frequency divider |
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| CN108447665A (en) * | 2018-01-24 | 2018-08-24 | 北京金科华业测控技术有限公司 | A kind of controllable impedance device assembly and speaker |
-
2018
- 2018-01-24 CN CN201810067576.8A patent/CN108447665A/en active Pending
-
2019
- 2019-01-23 EP EP19743230.5A patent/EP3736840B1/en active Active
- 2019-01-23 WO PCT/CN2019/072866 patent/WO2019144887A1/en unknown
- 2019-01-23 CN CN201980021874.6A patent/CN111954913A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004140165A (en) * | 2002-10-17 | 2004-05-13 | Matsushita Electric Ind Co Ltd | Variable inductor |
| CN201319287Y (en) * | 2008-12-03 | 2009-09-30 | 上海铁路通信工厂 | Heavy-current hollow coil |
| CN102237172A (en) * | 2010-04-26 | 2011-11-09 | 台湾积体电路制造股份有限公司 | Continuously tunable inductor with variable resistors |
| CN107509134A (en) * | 2017-10-10 | 2017-12-22 | 李龙根 | A kind of earphone second order passive frequency divider |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019144887A1 (en) * | 2018-01-24 | 2019-08-01 | 王静然 | Inductor assembly and speaker |
| CN110379611A (en) * | 2019-06-26 | 2019-10-25 | 东南大学 | A kind of DC current control inductance tuner with permanent magnet bias |
| CN110957659A (en) * | 2019-11-20 | 2020-04-03 | 邹虚 | Movable transformer substation |
| WO2024114435A1 (en) * | 2022-11-28 | 2024-06-06 | 王静然 | Inductor, and loudspeaker assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019144887A1 (en) | 2019-08-01 |
| EP3736840B1 (en) | 2023-08-23 |
| CN111954913A (en) | 2020-11-17 |
| EP3736840A4 (en) | 2021-03-10 |
| EP3736840C0 (en) | 2023-08-23 |
| EP3736840A1 (en) | 2020-11-11 |
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Application publication date: 20180824 |
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