CN205723108U - The audio-frequency transformer of low-frequency response can be realized - Google Patents
The audio-frequency transformer of low-frequency response can be realized Download PDFInfo
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- CN205723108U CN205723108U CN201620346850.1U CN201620346850U CN205723108U CN 205723108 U CN205723108 U CN 205723108U CN 201620346850 U CN201620346850 U CN 201620346850U CN 205723108 U CN205723108 U CN 205723108U
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Abstract
nullThis utility model provides the audio-frequency transformer that can realize low-frequency response，Include skeleton、Iron core、Primary coil、Secondary coil，The reel of hollow it is provided with at frame center，Iron core plugs and is fixed in reel，Ring winding groove it is formed with on skeleton，Primary coil and secondary coil are respectively wound around in winding slot，Primary coil is divided into strand copper wire and is respectively wound around in winding slot formation many groups primary coil winding，Secondary coil is divided into strand copper wire and is respectively wound around in winding slot formation many groups secondary coil winding，Between many group secondary coil windings and many group primary coil windings, alternate intervals is arranged successively，This utility model utilizes the coupling between many group primary coil windings and many group secondary coil windings，Reduce leakage inductance，Frequency response 30Hz 15KHz can be brought up to ± 1dB by ± 2dB，Improve transformer performance，Power amplification sound box distortion can be reduced，Can be applied in the various equipment that frequency response requirement is high，Applied widely.
Description
Technical field
This utility model relates to transformer technology field, more particularly, it relates to low-frequency response can be realized
Audio-frequency transformer.
Background technology
Audio-frequency transformer radio communication, radio and television, automatically control in as voltage amplification, power
The element of the circuit such as output, is usually used in the impedance of voltage of transformation or transformation load, utilizes impedance transformation principle,
Realize speaker and export mating of impedance with power amplifier, thus obtain the output of maximum.
Traditional audio-frequency transformer includes the iron core of frame-shaped, primary coil and secondary coil, described primary line
Enclose in the two-arm relative rotating around being formed on iron core with secondary coil, when primary coil is applied by audio-frequency transformer
During alternating voltage, alternating flux, a winding and Secondary Winding generation galvanomagnetic-effect can be produced in the core,
Audio-frequency transformer is made to serve the effect of power transmission.Couple relatively between the coil of current audio-frequency transformer
Difference, frequency response, typically at 30Hz-15KHz (± 2dB), so causes the easy distortion of power amplification sound box.
Utility model content
The purpose of this utility model is aiming at the deficiency of prior art existence and provides one can reduce leakage
Feel, improve the audio-frequency transformer of the realized low-frequency response of transformer performance.
In order to achieve the above object, the following technical scheme of this utility model offer:
The audio-frequency transformer of low-frequency response can be realized, include skeleton, iron core, primary coil, secondary
Coil, at frame center, vertically direction is provided with the reel of hollow, and iron core plugs and is fixed in reel,
Being formed on skeleton around the reel ring winding groove of a week, primary coil and secondary coil are wound around respectively
In winding slot, primary coil be divided into strand copper wire be respectively wound around in winding slot formation organize primary coil more
Winding, secondary coil is divided into strand copper wire and is respectively wound around in winding slot formation many groups secondary coil winding,
Between many group secondary coil windings and many group primary coil windings, alternate intervals is arranged successively, adjacent secondary
It is provided with insulating tape between coil windings and primary coil winding.
Described primary coil is divided into 2 strands of copper cash and is respectively wound around in winding slot and forms 2 groups of primary coil windings,
Secondary coil is divided into 3 strands of copper cash and is respectively wound around in winding slot and forms 3 groups of secondary coil windings.
It is provided with shield bracket outside described skeleton.
The two ends up and down of described iron core are screwed in reel respectively.
This utility model has the beneficial effects that: the audio frequency of the realized low-frequency response that this utility model provides
In transformator, include skeleton, iron core, primary coil, secondary coil, vertically square at frame center
To being provided with the reel of hollow, iron core plugs and is fixed in reel, skeleton is formed around reel
The ring winding groove of one week, primary coil and secondary coil be respectively wound around in winding slot, and primary coil divides
Becoming strand copper wire to be respectively wound around in winding slot formation many groups primary coil winding, secondary coil is divided into multiply
Copper cash is respectively wound around in winding slot and forms many group secondary coil windings, many group secondary coil windings and many groups
Between primary coil winding, alternate intervals is arranged successively, adjacent secondary coil winding and primary coil winding
Between be provided with insulating tape, this utility model utilize many group primary coil windings and many group secondary coils around
Coupling between group, reduces leakage inductance, it is possible to by ± 2dB, frequency response 30Hz-15KHz is brought up to ± 1dB,
Improve transformer performance, it is possible to reduce power amplification sound box distortion, it is possible to be applied to high each of frequency response requirement
In the equipment of kind, applied widely.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that,
Accompanying drawing in describing below is only embodiments more of the present utility model, for ordinary skill people
From the point of view of Yuan, on the premise of not paying creative work, it is also possible to obtain the attached of other according to these accompanying drawings
Figure.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the distributed architecture figure of this utility model primary coil and secondary coil；
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technology in this utility model embodiment
Scheme is clearly and completely described, it is clear that described embodiment is only this utility model one
Divide embodiment rather than whole embodiments.Based on the embodiment in this utility model, this area is common
The every other embodiment that technical staff is obtained under not making creative work premise, broadly falls into this
The scope of utility model protection.
As shown in Figure 1-2, the audio frequency transformation of the realized low-frequency response that this utility model embodiment provides
Device, includes skeleton 1, iron core 2, primary coil, secondary coil, vertically direction, skeleton 1 center
Being provided with the reel 11 of hollow, iron core 2 plugs and is fixed in reel 11, and skeleton 1 is formed with cincture
The reel ring winding groove 12 of 11 1 weeks, primary coil and secondary coil are respectively wound around winding slot 12
In, primary coil is divided into strand copper wire and is respectively wound around in winding slot 12 formation many groups primary coil winding 3,
Secondary coil is divided into strand copper wire and is respectively wound around in winding slot 12 formation many groups secondary coil winding 4, many
Between group secondary coil winding 4 and many group primary coil windings 3, alternate intervals is arranged successively, and adjacent is secondary
It is provided with insulating tape 5 between level coil windings 4 and primary coil winding 3.
In the present embodiment, primary coil be divided into 2 strands of copper cash be respectively wound around in winding slot 12 formation 2
Group primary coil winding 3, secondary coil is divided into 3 strands of copper cash and is respectively wound around in winding slot 12 and forms 3 groups
Secondary coil winding 4.
Skeleton 1 is outside is provided with shield bracket 6.The two ends up and down of iron core 2 respectively by screw 7 be fixed on around
In spool 11, iron core 2 is convenient to mount and dismount.
This utility model utilizes the coupling between many group primary coil windings 3 and many group secondary coil windings 4,
Reduce leakage inductance, it is possible to frequency response 30Hz-15KHz is brought up to ± 1dB by ± 2dB, improve transformator
Can, it is possible to reduce power amplification sound box distortion, it is possible to be applied in the various equipment that frequency response requirement is high, suitable
Wide by scope.
Professional and technical personnel in the field are capable of or use this utility model.Multiple to these embodiments
Amendment will be apparent from for those skilled in the art, as defined herein the most former
Reason can realize in the case of without departing from spirit or scope of the present utility model in other embodiments.
Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to and this
Principle disclosed in literary composition and the consistent the widest scope of features of novelty.
Claims (4)
1. the audio-frequency transformer of low-frequency response be can realize, skeleton (1), iron core (2), just included
Level coil, secondary coil, it is characterised in that: vertically direction, described skeleton (1) center is provided with hollow
Reel (11), iron core (2) plugs and is fixed in reel (11), and skeleton (1) is upper to be formed
Having around the reel ring winding groove (12) of (11) weeks, primary coil and secondary coil twine respectively
Being wound in winding slot (12), primary coil is divided into strand copper wire and is respectively wound around shape in winding slot (12)
Becoming many groups primary coil winding (3), secondary coil is divided into strand copper wire and is respectively wound around winding slot (12)
Organizing secondary coil winding (4) middle formation more, many groups secondary coil winding (4) and many group primary coils around
Between group (3), alternate intervals is arranged successively, adjacent secondary coil winding (4) and primary coil winding
(3) insulating tape (5) it is provided with between.
The audio-frequency transformer realizing low-frequency response the most according to claim 1, it is characterised in that:
Described primary coil be divided into 2 strands of copper cash be respectively wound around in winding slot (12) formed 2 groups of primary coils around
Group (3), secondary coil is divided into 3 strands of copper cash and is respectively wound around 3 groups of secondary wire of formation in winding slot (12)
Circle winding (4).
The audio-frequency transformer realizing low-frequency response the most according to claim 1, it is characterised in that:
Described skeleton (1) is outside is provided with shield bracket (6).
The audio-frequency transformer realizing low-frequency response the most according to claim 1, it is characterised in that:
The two ends up and down of described iron core (2) are fixed in reel (11) by screw (7) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620346850.1U CN205723108U (en) | 2016-04-22 | 2016-04-22 | The audio-frequency transformer of low-frequency response can be realized |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620346850.1U CN205723108U (en) | 2016-04-22 | 2016-04-22 | The audio-frequency transformer of low-frequency response can be realized |
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| Publication Number | Publication Date |
|---|---|
| CN205723108U true CN205723108U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620346850.1U Active CN205723108U (en) | 2016-04-22 | 2016-04-22 | The audio-frequency transformer of low-frequency response can be realized |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120232A (en) * | 2018-11-01 | 2020-05-08 | 哈尔滨工业大学 | Cusped field plasma thruster capable of realizing fine adjustment and discharge control performance |
| CN112133519A (en) * | 2020-09-26 | 2020-12-25 | 江西博之韵电子科技有限公司 | Audio transformer |
-
2016
- 2016-04-22 CN CN201620346850.1U patent/CN205723108U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120232A (en) * | 2018-11-01 | 2020-05-08 | 哈尔滨工业大学 | Cusped field plasma thruster capable of realizing fine adjustment and discharge control performance |
| CN111120232B (en) * | 2018-11-01 | 2021-08-03 | 哈尔滨工业大学 | Cusped field plasma thruster capable of realizing fine adjustment and discharge control performance |
| CN112133519A (en) * | 2020-09-26 | 2020-12-25 | 江西博之韵电子科技有限公司 | Audio transformer |
| CN112133519B (en) * | 2020-09-26 | 2024-04-05 | 江西博之韵电子科技有限公司 | Audio transformer |
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