CN208691525U - A kind of outdoor sound equipment of transformer self-shield - Google Patents
A kind of outdoor sound equipment of transformer self-shield Download PDFInfo
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- CN208691525U CN208691525U CN201821424968.7U CN201821424968U CN208691525U CN 208691525 U CN208691525 U CN 208691525U CN 201821424968 U CN201821424968 U CN 201821424968U CN 208691525 U CN208691525 U CN 208691525U
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- transformer
- thermistor
- metal plate
- arc metal
- circuit board
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Abstract
A kind of outdoor sound equipment of transformer self-shield, including cabinet, circuit board and loudspeaker, circuit board and loudspeaker are arranged in cabinet, and loudspeaker are electrically connected with the audio output of circuit board；Circuit board is equipped with transformer, and transformer is equipped with arc metal plate and thermistor, and arc metal plate is wherein equipped with thermally conductive insulating layer on one side, and arc metal plate is attached to outside the coil of transformer by thermally conductive insulating layer；Thermistor is attached to the another side of arc metal plate, and one end of thermistor and a wherein pin for transformer connect, connecting pin of the other end of thermistor as connection external power supply firewire.By increasing arc metal plate and thermistor, it can be realized transformer self-shield, prolong the service life, also avoid losing.
Description
Technical field
The utility model relates to outdoor sound equipment more particularly to a kind of outdoor sound equipments of transformer self-shield.
Background technique
Sound equipment is a kind of equipment for amplifying sound, and sound equipment is seen everywhere in life, and sound equipment enriches people's lives, makes to give birth to
Work becomes very impressive.When carrying out outdoor activities (such as square dance, businessman hold pageant etc.), family is especially used
Outer sound equipment, volume is bigger in order to obtain, the better sound of sound quality, is typically provided with transformer in outdoor sound equipment internal circuit, but by
It is easy to be influenced by rainwater etc. and short circuit occurs in outdoor sound equipment, it is tight to will lead to transformer coil fever when short circuit occurs in circuit
The temperature of weight, transformer coil increases, and may cause the rapid aging of coil insulation, thermal runaway or eventually leads to transformer damage
It is bad, it shortens the working life, serious person then directly or indirectly causes fire, to jeopardize the person and property safety.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of outdoor sound equipment of transformer self-shield, this open air sound
Sound can be realized transformer self-shield, prolongs the service life, also avoids losing.The technical solution adopted is as follows:
A kind of outdoor sound equipment of transformer self-shield, including cabinet, circuit board and loudspeaker, circuit board and loudspeaker are arranged at
In cabinet, loudspeaker are electrically connected with the audio output of circuit board；Circuit board is equipped with transformer, it is characterised in that: the transformation
Device is equipped with arc metal plate and thermistor, and arc metal plate is wherein equipped with thermally conductive insulating layer on one side, and arc metal plate passes through
Thermally conductive insulating layer is attached to outside the coil of transformer；Thermistor is attached to the another side of arc metal plate, thermistor
A wherein pin for one end and transformer connection, connecting pin of the other end of thermistor as connection external power supply firewire.
One end of thermistor series connection access transformer connection external power supply firewire, arc metal plate are equipped with thermally conductive insulating layer
One side directly contacted with the coil of transformer, avoided electricity, when the temperature that short-circuit transformer coil occurs increases, heat is logical
It crosses thermally conductive insulating layer heat and is transferred to entire arc metal plate, since sheet metal is arc, preferably contact, become with transformer coil
The heat of transformer coil is transferred to thermistor by the fast speed heat of arc metal plate, and thermistor rises its resistance value with temperature and becomes
Must be quite big, partial pressure is equivalent to voltage in circuit, and the partial pressure of transformer is almost nil at this time, is equivalent to circuit disconnection, plays
The effect of transformer self-shield, prolongs the service life, and also avoids losing；When the temperature of transformer coil declines by cooling
Later, the temperature of thermistor declines therewith, and resistance value gradually becomes smaller, and the partial pressure of transformer becomes larger, and keeps transformer extensive
It is multiple to work normally.
As a preferred embodiment of the present invention, the thermally conductive insulating layer is the first heat conductive insulating adhesive tape.First is thermally conductive exhausted
Edge adhesive tape plays insulating effect between arc metal plate and the coil of transformer, while can be fast by the heat of transformer coil
Speed is conducted to arc metal plate and thermistor.
As a preferred embodiment of the present invention, the thermistor is attached to the arc by the second heat conductive insulating adhesive tape
On shape sheet metal.
Above-mentioned first heat conductive insulating adhesive tape, the second heat conductive insulating adhesive tape can use 3M8810, can also be led using other
The adhesive tape of hot coefficient height, good insulation preformance.
The utility model compared with prior art, has the advantages that
By increasing arc metal plate and thermistor, it can be realized transformer self-shield, prolong the service life, also avoid
Loss.
Detailed description of the invention
Fig. 1 is the utility model transformer device structure schematic diagram；
Fig. 2 is the circuit connection diagram of Fig. 1.
Specific embodiment
It is described further with reference to the accompanying drawing with preferred embodiments of the present invention.
As shown in Figure 1 and Figure 2, a kind of outdoor sound equipment of transformer self-shield, including cabinet (not shown), circuit board
(not shown) and loudspeaker (not shown), circuit board and loudspeaker are arranged in cabinet, the audio of loudspeaker and circuit board
Output end electrical connection；Circuit board is equipped with transformer 1, and transformer 1 is equipped with arc metal plate 2 and thermistor 3, curved metal
Wherein one side is equipped with thermally conductive insulating layer 4 to piece 2, and arc metal plate 2 is attached to outside the coil of transformer 1 by thermally conductive insulating layer 4；
Thermistor 3 is attached to the another side of arc metal plate 2, and one end of thermistor 3 is connect with a wherein pin for transformer 1,
Connecting pin of the other end of thermistor 3 as connection external power supply firewire.
Above-mentioned thermally conductive insulating layer 4 is the first heat conductive insulating adhesive tape 4.First heat conductive insulating adhesive tape 4 is in arc metal plate 2 and becomes
Insulating effect is played between the coil of depressor 1, while the heat of 1 coil of transformer can quickly be conducted to arc metal plate 2
With thermistor 3.
Above-mentioned thermistor 3 is attached on arc metal plate 2 by the second heat conductive insulating adhesive tape 5.
Above-mentioned first heat conductive insulating adhesive tape 4, the second heat conductive insulating adhesive tape 5 can use 3M8810, can also use other
The adhesive tape of thermal coefficient height, good insulation preformance.
The series connection access transformer 1 of thermistor 3 connects one end of external power supply firewire, and arc metal plate 2 is equipped with first and leads
The one side of thermal insulation adhesive tape 4 is directly contacted with the coil of transformer 1, avoids electricity, when the temperature that 1 coil of short-circuit transformer occurs
When raising, heat is transferred to entire arc metal plate 2 by 4 heat of the first heat conductive insulating adhesive tape, since sheet metal 2 is arc, with
1 coil of transformer preferably contacts, and the heat of 1 coil of transformer is transferred to thermistor 3 by the fast speed heat of arc metal plate 2,
Thermistor 3, which rises its resistance value with temperature, becomes quite big, and partial pressure is equivalent to voltage in circuit, at this time point of transformer 1
Press it is almost nil, be equivalent to circuit disconnection, play the role of 1 self-shield of transformer, prolong the service life, also avoid losing；When
The temperature of 1 coil of transformer is after cooling decline, and the temperature of thermistor 3 declines therewith, and resistance value gradually becomes
Small, the partial pressure of transformer 1 becomes larger, and transformer 1 is made to restore to work normally.
In addition, it should be noted that, the specific embodiments described in this specification, each section title etc. can not
Together, all equivalent or simple changes done according to structure, feature and principle described in the concept of the patent of the utility model are included in this
In the protection scope of utility model patent.Those skilled in the art of the present invention can be to described specific reality
Example is applied to do various modifications or additions or be substituted in a similar manner, structure without departing from the utility model or
Beyond the scope defined by this claim, it all should belong to the protection range of the utility model.
Claims (3)
1. a kind of outdoor sound equipment of transformer self-shield, including cabinet, circuit board and loudspeaker, circuit board and loudspeaker are arranged at case
In body, loudspeaker are electrically connected with the audio output of circuit board；Circuit board is equipped with transformer, it is characterised in that: the transformer
It is equipped with arc metal plate and thermistor, arc metal plate is wherein equipped with thermally conductive insulating layer on one side, and arc metal plate is by leading
Thermal insulation layer is attached to outside the coil of transformer；Thermistor is attached to the another side of arc metal plate, and the one of thermistor
End is connect with a wherein pin for transformer, connecting pin of the other end of thermistor as connection external power supply firewire.
2. the outdoor sound equipment of transformer self-shield as described in claim 1, it is characterized in that: the thermally conductive insulating layer is led for first
Thermal insulation adhesive tape.
3. the outdoor sound equipment of transformer self-shield as described in claim 1, it is characterized in that: the thermistor is led by second
Thermal insulation adhesive tape is attached to the curved metal on piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821424968.7U CN208691525U (en) | 2018-08-31 | 2018-08-31 | A kind of outdoor sound equipment of transformer self-shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821424968.7U CN208691525U (en) | 2018-08-31 | 2018-08-31 | A kind of outdoor sound equipment of transformer self-shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208691525U true CN208691525U (en) | 2019-04-02 |
Family
ID=65888053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821424968.7U Active CN208691525U (en) | 2018-08-31 | 2018-08-31 | A kind of outdoor sound equipment of transformer self-shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208691525U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110719556A (en) * | 2019-10-24 | 2020-01-21 | 朝阳聚声泰（信丰）科技有限公司 | Low-temperature protection MEMS microphone and circuit diagram thereof |
-
2018
- 2018-08-31 CN CN201821424968.7U patent/CN208691525U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110719556A (en) * | 2019-10-24 | 2020-01-21 | 朝阳聚声泰（信丰）科技有限公司 | Low-temperature protection MEMS microphone and circuit diagram thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A transformer self-protection outdoor audio system Effective date of registration: 20230522 Granted publication date: 20190402 Pledgee: Bank of China Limited by Share Ltd. Shantou branch Pledgor: SHANTOU A& V ELECTROACOUSTICS ENTERPRISES CO.,LTD. Registration number: Y2023980041252 |