CN208835983U - A kind of magnetic amplifier in Switching Power Supply - Google Patents
A kind of magnetic amplifier in Switching Power Supply Download PDFInfo
- Publication number
- CN208835983U CN208835983U CN201821232221.1U CN201821232221U CN208835983U CN 208835983 U CN208835983 U CN 208835983U CN 201821232221 U CN201821232221 U CN 201821232221U CN 208835983 U CN208835983 U CN 208835983U
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- CN
- China
- Prior art keywords
- magnetic amplifier
- power supply
- fixed
- switching power
- fixing bolt
- 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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Abstract
The utility model discloses the magnetic amplifiers in a kind of Switching Power Supply, including fixed shell, the first fixing bolt and shielding case, the fixed case top is equipped with case lid, the fixed enclosure interior is equipped with magnetic amplifier, the magnetic amplifier bottom is fixedly connected with fixed plate, top is separately installed with the first fixing bolt and the second fixing bolt at left and right sides of the fixed plate, first fixing bolt and the second fixing bolt bottom, which are run through, fixed plate and fixed shell, and the fixed enclosure interior is equipped with shielding case.The utility model is by being equipped with the intracorporal shielding case of set casing, it can be used to shield electronic signal, such as influence and the internal electromagnetic wave outside that generates of the external electromagnetic wave to internal circuit can be shielded and radiated, electromagnetism is avoided to have an impact magnetic amplifier, be conducive to the more practical magnetic amplifier using in Switching Power Supply, it is more practical, it is suitble to be widely popularized and uses.
Description
Technical field
Magnetic amplifier the utility model relates to magnetic amplifier field, in particular in a kind of Switching Power Supply.
Background technique
Magnetic amplifier is iron core to be made with the ferromagnetic material with nonlinear characteristic, and made with direct current and alternating current at present
It magnetizes to carry out the electric appliance of electrical transformation, and general can all use arrives magnetic amplifier in Switching Power Supply, but existing switch is electric
Source when in use, generally can all generate noise, and the electromagnetic noise of Switching Power Supply can be divided into two major classes for noise source, a kind of
It is external noise, such as the common mode and differential mode noise that are come by electrical grid transmission, external electromagnetic radiation control electricity to Switching Power Supply
The interference etc. on road, another kind of is the electromagnetic noise that Switching Power Supply itself generates, as the current spike of switching tube and rectifying tube generates
Harmonic wave and electromagnetic interference, moreover electromagnetic radiation can also impact magnetic amplifier, therefore, it is proposed that a kind of
Magnetic amplifier in Switching Power Supply.
Utility model content
The main purpose of the utility model is to provide the magnetic amplifiers in a kind of Switching Power Supply, can effectively solve background
The problems in technology.
To achieve the above object, the technical solution that the utility model is taken are as follows:
A kind of magnetic amplifier in Switching Power Supply, including fixed shell, the first fixing bolt and shielding case, the set casing
Case lid is installed at the top of body, the fixed enclosure interior is equipped with magnetic amplifier, and the magnetic amplifier bottom is fixedly connected with
Fixed plate, fixed plate left and right sides top are separately installed with the first fixing bolt and the second fixing bolt, and described first is solid
Determine bolt and the second fixing bolt bottom is run through fixed plate and fixed shell, the fixed enclosure interior is equipped with shielding
Cover.
Further, the fixed hull outside is fixedly connected with porous sound absorbing plate, and one encloses on the outside of the porous sound absorbing plate
Offer sound-absorption hole.
Further, the fixed housing bottom is fixedly connected with acoustical cotton.
Further, the case lid bottom is connected with fixed block, offers threaded walls on the outside of the fixed block.
Further, the fixed case top offers circular hole, offers thread groove on the inside of the circular hole.
Compared with prior art, the utility model has the following beneficial effects: by being equipped with the intracorporal shielding case of set casing,
It can be used to shield electronic signal, such as influence and the internal electromagnetic wave that generates of the external electromagnetic wave to internal circuit can be shielded
It to external radiation, avoids electromagnetism and magnetic amplifier is had an impact, be conducive to the more practical magnetic using in Switching Power Supply and amplify
Device can protect magamp by being equipped with fixed shell, prevent magamp from shaking, magnetic force is caused to amplify
Device damage, is conducive to the safer magnetic amplifier using in Switching Power Supply, passes through the porous sound absorbing being equipped on fixed shell
Plate and sound-absorption hole can absorb the noise in Switching Power Supply, can effectively reduce the noise in Switching Power Supply, be conducive to
The more practical magnetic amplifier using in Switching Power Supply can be mentioned further by being equipped with the acoustical cotton of fixed housing bottom
The assimilation effect of high noisy is conducive to the more practical magnetic amplifier using in Switching Power Supply.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the magnetic amplifier in the utility model Switching Power Supply；
Fig. 2 is that porous sound absorbing plate, sound-absorption hole and the sound-absorbing cotton structure of the magnetic amplifier in the utility model Switching Power Supply show
It is intended to；
Fig. 3 is the fixed block and threaded walls structural schematic diagram of the magnetic amplifier in the utility model Switching Power Supply；
Fig. 4 is the circular hole and thread groove structure schematic diagram of the magnetic amplifier in the utility model Switching Power Supply.
In figure: 1, fixed shell；2, magnetic amplifier；3, fixed plate；4, the first fixing bolt；5, the second fixing bolt；6,
Shielding case；7, case lid；8, porous sound absorbing plate；9, sound-absorption hole；10, acoustical cotton；11, fixed block；12, threaded walls；13, circular hole；
14, thread groove.
Specific embodiment
To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below
In conjunction with specific embodiment, the utility model is further described.
As shown in Figs 1-4, the magnetic amplifier in a kind of Switching Power Supply, including fixed shell 1, the first fixing bolt 4 and screen
Cover 6 is covered, case lid 7 is installed at the top of the fixed shell 1, magnetic amplifier 2, the magnetic are installed inside the fixed shell 1
2 bottom of amplifier is fixedly connected with fixed plate 3, and 3 left and right sides top of fixed plate is separately installed with 4 He of the first fixing bolt
Second fixing bolt 5, first fixing bolt 4 and 5 bottom of the second fixing bolt, which are run through, fixed plate 3 and fixed shell 1,
Shielding case 6 is installed inside the fixed shell 1.
Wherein, porous sound absorbing plate 8 is fixedly connected on the outside of the fixed shell 1,8 outside of porous sound absorbing plate, one circle is equal
Offer sound-absorption hole 9.
Wherein, 1 bottom of fixed shell is fixedly connected with acoustical cotton 10.
Wherein, 7 bottom of case lid is connected with fixed block 11, offers threaded walls 12 on the outside of the fixed block 11.
Wherein, circular hole 13 is offered at the top of the fixed shell 1, offers thread groove 14 on the inside of the circular hole 13.
Working principle: by being equipped with fixed shell 1, the first fixing bolt 4 and shielding case 6, a kind of Switching Power Supply is being used
In magnetic amplifier when, fixed shell 1 is fixed on Switching Power Supply first with the first fixing bolt 4 and the second fixing bolt 5
Interior, when external electromagnetic waves impact magnetic amplifier 2, shielding case 6 can be shielded electromagnetic wave, prevent electromagnetic wave pair
Magnetic amplifier 2 impacts, due to the sound-absorption hole being equipped on porous sound absorbing plate 8 and porous sound absorbing plate 8 on the outside of fixed shell 1
9, when Switching Power Supply generates electromagnetic noise, it can use porous sound absorbing plate 8 and sound-absorption hole 9 absorb noise, and solid
The acoustical cotton 10 of 1 bottom of fixed shell installation when Switching Power Supply generates electromagnetic noise, can further increase the absorption effect of noise
Fruit.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (5)
1. the magnetic amplifier in a kind of Switching Power Supply, including fixed shell (1), the first fixing bolt (4) and shielding case (6),
It is characterized in that: being equipped with case lid (7) at the top of the fixed shell (1), magnetic amplifier is installed inside the fixed shell (1)
(2), magnetic amplifier (2) bottom is fixedly connected with fixed plate (3), and top is installed respectively at left and right sides of the fixed plate (3)
There are the first fixing bolt (4) and the second fixing bolt (5), first fixing bolt (4) and the second fixing bolt (5) bottom are equal
Through having fixed plate (3) and fixing shell (1), shielding case (6) are installed inside the fixed shell (1).
2. the magnetic amplifier in Switching Power Supply according to claim 1, it is characterised in that: on the outside of the fixed shell (1)
It is fixedly connected with porous sound absorbing plate (8), a circle offers sound-absorption hole (9) on the outside of the porous sound absorbing plate (8).
3. the magnetic amplifier in Switching Power Supply according to claim 1, it is characterised in that: fixed shell (1) bottom
It is fixedly connected with acoustical cotton (10).
4. the magnetic amplifier in Switching Power Supply according to claim 1, it is characterised in that: case lid (7) bottom connects
It is connected to fixed block (11), offers threaded walls (12) on the outside of the fixed block (11).
5. the magnetic amplifier in Switching Power Supply according to claim 1, it is characterised in that: at the top of the fixed shell (1)
It offers circular hole (13), offers thread groove (14) on the inside of the circular hole (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821232221.1U CN208835983U (en) | 2018-08-01 | 2018-08-01 | A kind of magnetic amplifier in Switching Power Supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821232221.1U CN208835983U (en) | 2018-08-01 | 2018-08-01 | A kind of magnetic amplifier in Switching Power Supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208835983U true CN208835983U (en) | 2019-05-07 |
Family
ID=66308041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821232221.1U Active CN208835983U (en) | 2018-08-01 | 2018-08-01 | A kind of magnetic amplifier in Switching Power Supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208835983U (en) |
-
2018
- 2018-08-01 CN CN201821232221.1U patent/CN208835983U/en active Active
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