CN208922811U - A kind of voice frequency isolation transformer - Google Patents
A kind of voice frequency isolation transformer Download PDFInfo
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- CN208922811U CN208922811U CN201821475403.1U CN201821475403U CN208922811U CN 208922811 U CN208922811 U CN 208922811U CN 201821475403 U CN201821475403 U CN 201821475403U CN 208922811 U CN208922811 U CN 208922811U
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- transformer
- shell
- voice frequency
- frequency isolation
- blocking head
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Abstract
The utility model discloses a kind of voice frequency isolation transformers, including voice frequency isolation transformer ontology, the voice frequency isolation transformer ontology is made of the device for transformer of shell and setting inside the housing, the shell is a cuboid, the device for transformer be provided with it is multiple inside the housing, jack is provided on the side wall of outer shell, the jack corresponds to the two sides up and down of device for transformer, the device for transformer bottom is provided with bottom plate, the bottom plate is fixedly mounted inside the housing by screw, protective hood for transformer is provided at the top of the bottom plate, baffle is provided in the protective hood for transformer, insulating support is provided between the baffle and bottom plate, magnetic core is provided on the insulating support, beneficial effect is, the multiple device for transformer of setting in shell, it can be advantageously used in the case where multiple stereo sets, by different sounds Frequency division does not carry out isolation transformation, avoids and mistake occurs, and more clean effect is more preferable.
Description
Technical field
The utility model belongs to transformer technology field more particularly to a kind of voice frequency isolation transformer.
Background technique
Voice frequency isolation transformer is transformer of the work in audio range, also known as low-frequency transformer, operating frequency range one
As from 10~20000Hz, it is mainly used between system or the audio signal transmission of equipment room, can be between completely isolated two systems
Potential difference, avoid exchanging acoustic jamming as caused by problem with grounding, prevent damage of the excessively high potential difference to equipment input stage,
The safe transmission for realizing audio signal, is the cascade essential product of audio system, is widely used in audio-visual devices.
Voice frequency isolation transformer inevitably has in engineering construction because of line connection error so that its prime or subsequent equipment damage
Caused by bad the phenomenon that sequence of audio equipment damage, some personal and individual is inevitable when using microphone equipment
It can be electric to working signal by other artificial or natural causes such as extraneous magnetic field, electric field, weather during signal transmission
The interference generated when flat very low, current audio frequency apparatus much require impedance matching, if drilled there are many music device tool
When out, multiple equipment needs to be equipped with multiple transformers, and it is big and inconvenient to use be also easy to occur using wrong to occupy volume
Situation.
Utility model content
The technical problems to be solved in the utility model and the technical assignment of proposition be existing technical solution is carried out it is perfect
With improvement, a kind of voice frequency isolation transformer, the multiple device for transformer of setting in shell can be in the case where multiple stereo sets
It is advantageously used, different audios is subjected to isolation transformation respectively, avoids and mistake occurs, more clean effect is more preferable.
A kind of voice frequency isolation transformer, including voice frequency isolation transformer ontology, the voice frequency isolation transformer ontology is by outer
The device for transformer composition of shell and setting inside the housing, the shell is a cuboid, and the device for transformer is provided with
It is multiple inside the housing, jack is provided on the side wall of outer shell, the jack corresponds to the two sides up and down of device for transformer, described
Device for transformer bottom is provided with bottom plate, and the bottom plate is fixedly mounted inside the housing by screw, setting at the top of the bottom plate
There is protective hood for transformer, baffle be provided in the protective hood for transformer, is provided with insulating support between the baffle and bottom plate,
It is provided with magnetic core on the insulating support, is respectively arranged with the first coiling group and the second coiling group, institute at left and right sides of the magnetic core
It states and is provided with input terminal lead in the first coiling group, output end lead is provided in the second coiling group, the transformer is protected
The left and right sides is provided with string holes outside shield.
Further: the device for transformer upper and lower ends are respectively arranged with blocking head male connector and blocking head female, described
Blocking head male connector and blocking head female are arranged in metal sealing pipe, and the input terminal lead in the first coiling group passes through line
Hole connects in blocking head female, and the output end lead in the second coiling group is connected in blocking head male connector by string holes, described
Blocking head male connector connects jack with blocking head female.
It is further: magnetic core iron core made of Alperm, the input impedance of the device for transformer and defeated
Impedance is all 600 ohm out.
Further: the input terminal lead of the first coiling group and the output end lead of the second coiling group are installed with shield
Thread casing.
The utility model has the advantages that the multiple device for transformer of setting in shell, can be advantageously used in the case where multiple stereo sets,
Different audios is subjected to isolation transformation respectively, avoids and mistake occurs, more clean effect is more preferable.
Detailed description of the invention
Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model
It encloses.Wherein:
Fig. 1 device for transformer structural schematic diagram
Fig. 2 shell and device for transformer positional diagram
Fig. 3 the utility model overall structure diagram
In figure: 1- shell, 2- device for transformer, 3- blocking head male connector, 4- blocking head female, 5- string holes, 6- transformer are protected
Shield, 7- the first coiling group, 8- input terminal lead, 9- bottom plate, 10- baffle, 11- insulating support, 12- magnetic core, the second coiling of 13-
Group, 14- input terminal lead, 15- jack.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is further described.In the following detailed description, only pass through
Bright mode describes certain exemplary embodiments of the utility model.Undoubtedly, those skilled in the art can be with
It recognizes, it, can be with a variety of different modes to described without departing from the spirit and scope of the utility model
Embodiment is modified.Therefore, attached drawing and description are regarded as illustrative in nature, rather than the protection for limiting claim
Range.
Embodiment:
A kind of voice frequency isolation transformer, including voice frequency isolation transformer ontology, the voice frequency isolation transformer ontology is by outer
Shell 1 and the device for transformer 2 being arranged in inside shell 1 form, and the shell 1 is a cuboid, and the device for transformer 2 is set
Be equipped with multiple inside shell 1, be provided with jack 15 on 1 side wall of shell, the corresponding device for transformer 2 of the jack 15 it is upper
Lower two sides, 2 bottom of device for transformer are provided with bottom plate 9, and the bottom plate 9 is fixedly mounted on inside shell 1 by screw, institute
It states and is provided with protective hood for transformer 6 at the top of bottom plate 9, baffle 10, the baffle 10 and bottom are provided in the protective hood for transformer 6
It is provided with insulating support 11 between plate 9, magnetic core 12 is provided on the insulating support 11,12 left and right sides of magnetic core is set respectively
It is equipped with the first coiling group 7 and the second coiling group 13, input terminal lead 8, second coiling are provided in the first coiling group 7
Output end lead 14 is provided in group 13, the 6 outside left and right sides of protective hood for transformer is provided with string holes 5.
Prioritization scheme as the utility model: 2 upper and lower ends of device for transformer are respectively arranged with blocking head male connector 3
With blocking head female 4, the blocking head male connector 3 and blocking head female 4 are arranged in metal sealing pipe, the first coiling group
Input terminal lead 8 on 7 is connected in blocking head female 4 by string holes 5, and the output end lead 14 in the second coiling group 13 is logical
Cable-through hole 5 connects in blocking head male connector 3, and the blocking head male connector 3 and blocking head female 4 connect jack 15, the magnetic core 12 by
Iron core made of Alperm, the input impedance of the device for transformer 2 and output impedance are all 600 ohm, and described first
The input terminal lead 8 of coiling group 7 and the output end lead 14 of the second coiling group 13 are installed with wire bushing pipe.
As shown in Figure 1-3, line is inserted into blocking head female by the jack on shell, then when using transformer
Output end lead is reached by magnetic core by the input terminal lead in blocking head female, is then spread out of, is become by blocking head male connector
Depressor can be very good to adjust voltage and current situation, avoids spread of voltage from damaging stereo set, also reduces pair
In the multiple device for transformer of setting in the influence of sound quality, shell, can be advantageously used in the case where multiple stereo sets, it will not
Same audio carries out isolation transformation respectively, and different equipment is corresponded to different routes and carries out combing, avoids and used
Occurs mistake in journey, more clean effect is more preferable.
The above descriptions are merely exemplary embodiments of the present utility model, the model being not intended to limit the utility model
It encloses.Any those skilled in the art, made equivalent change under the premise of not departing from the conceptions and principles of the utility model
Change and modify, should belong to the range of the utility model protection.
Claims (4)
1. a kind of voice frequency isolation transformer, including voice frequency isolation transformer ontology, it is characterised in that: the voice frequency isolation transformer
Ontology is made of shell (1) and setting in the internal device for transformer (2) of shell (1), and the shell (1) is a cuboid,
The device for transformer (2) is provided with multiple internal in shell (1), is provided with jack (15) on shell (1) side wall, described
The two sides up and down of jack (15) corresponding device for transformer (2), device for transformer (2) bottom is provided with bottom plate (9), the bottom
Plate (9) is fixedly mounted on shell (1) inside by screw, is provided with protective hood for transformer (6) at the top of the bottom plate (9), described
It is provided with baffle (10) in protective hood for transformer (6), is provided with insulating support (11) between the baffle (10) and bottom plate (9),
It is provided with magnetic core (12) on the insulating support (11), is respectively arranged with the first coiling group (7) at left and right sides of the magnetic core (12)
With the second coiling group (13), it is provided with input terminal lead (8) on the first coiling group (7), on the second coiling group (13)
It is provided with output end lead (14), the external left and right sides of the protective hood for transformer (6) is provided with string holes (5).
2. a kind of voice frequency isolation transformer according to claim 1, it is characterised in that: the device for transformer (2) is up and down
Both ends are respectively arranged with blocking head male connector (3) and blocking head female (4), and the blocking head male connector (3) and blocking head female (4) are equal
It is arranged in metal sealing pipe, the input terminal lead (8) on the first coiling group (7) connects blocking head mother by string holes (5)
On head (4), the output end lead (14) on the second coiling group (13) is connected on blocking head male connector (3) by string holes (5), institute
State blocking head male connector (3) and blocking head female (4) connection jack (15).
3. a kind of voice frequency isolation transformer according to claim 1, it is characterised in that: the magnetic core (12) is closed by high magnetic conduction
Iron core made of gold, the input impedance of the device for transformer (2) and output impedance are all 600 ohm.
4. a kind of voice frequency isolation transformer according to claim 1, it is characterised in that: the first coiling group (7) it is defeated
Enter to hold lead (8) and the output end lead (14) of the second coiling group (13) to be installed with wire bushing pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821475403.1U CN208922811U (en) | 2018-09-10 | 2018-09-10 | A kind of voice frequency isolation transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821475403.1U CN208922811U (en) | 2018-09-10 | 2018-09-10 | A kind of voice frequency isolation transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208922811U true CN208922811U (en) | 2019-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821475403.1U Active CN208922811U (en) | 2018-09-10 | 2018-09-10 | A kind of voice frequency isolation transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208922811U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215938A (en) * | 2018-09-10 | 2019-01-15 | 东莞市玖欣电机制造有限公司 | A kind of voice frequency isolation transformer |
-
2018
- 2018-09-10 CN CN201821475403.1U patent/CN208922811U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215938A (en) * | 2018-09-10 | 2019-01-15 | 东莞市玖欣电机制造有限公司 | A kind of voice frequency isolation transformer |
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