CN208796785U - High frequency transformer - Google Patents

Abstract

The utility model discloses a kind of high frequency transformers, belong to field transformer, the main points of its technical scheme are that: including skeleton, the winding coil being wrapped on skeleton and the intraskeletal iron core of insertion, the iron core two sides are vertically and fixedly provided with fixed plate, two fixed plates are fixedly connected by passing through the bolt of fixinig plate group, and the fixed plate is fixed on circuit boards.The utility model has the effect of reducing noise.

Description

High frequency transformer

Technical field

The utility model relates to transformer, in particular to a kind of high frequency transformer.

Background technique

Transformer is the device for changing alternating voltage using the principle of electromagnetic induction, and main member is primary coil, secondary Grade coil and iron core.Major function has: voltage transformation, current transformation, impedance transformation, isolation, pressure stabilizing etc..It can divide by purposes Are as follows: (electric furnace becomes, rectifies change, power frequency testing transformer, pressure regulator, mining change, audio transformation for power transformer and special transformer Device, intermediate-frequency transformer, high frequency transformer, impact transformer, instrument transformer, electronic transformer, reactor, mutual inductor etc.).

High frequency transformer is the power transformer that working frequency is more than 10kHz, is mainly used in high frequency switch power, is made high Frequency switching mode power supply transformer also has for making high frequency inverter transformer in high frequency inverter and Inverter Welder.

The iron core of high frequency transformer is generally stacked by silicon steel sheet at present, but during electromagnetism alternation, silicon steel sheet Magnetomechanical effects are continuously generated according to the frequency of alternating current, collide continuous shaking between silicon steel sheet, to issue huge noise.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of high frequency transformer, it has Reduce the effect of noise.

Above-mentioned technical purpose is achieved through the following technical solutions, a kind of high frequency transformer, including skeleton, is wrapped in bone Winding coil and the intraskeletal iron core of insertion on frame, the iron core two sides are vertically and fixedly provided with fixed plate, and two fixed plates are logical The bolt crossed across fixinig plate group is fixedly connected, and the fixed plate is fixed on circuit boards.

Through the above technical solutions, it is by vertically fixed fixed plate that silicon steel sheet is fixed on circuit boards, reduce iron The vibration of core, and then reduce noise, fixed plate can be limited to the vibration of iron core left and right directions perpendicular to silicon steel sheet setting.

Further, the fixed plate is fixed with connecting plate perpendicular to fixed plate on one side close to circuit board.The connecting plate It is threadedly coupled on circuit boards.

Through the above technical solutions, being overlapped with circuit board relative between vertical fixed plate and connecting plate using connecting plate More easily fix.

Further, integrally connected between connecting plate and fixed plate.

Through the above technical solutions, on the one hand, the production method of integrally connected is more convenient, it is only necessary to pass through mold compresses It forms, instead of the operating procedure that will be fixedly connected again after fixed plate and connecting plate processing, on the other hand integrally connects The fixation connect, which allows between fixed plate and connecting plate, to cause the mutual collision generation in vibration processes to be made an uproar due to there is gap Sound.

Further, the fixed plate is arranged to right angled triangle, and two right-angle sides are attached on iron core and circuit board respectively.

Through the above technical solutions, one side triangle increases stability with respect to rectangle or other shape, fixation is allowed The fixation of plate is more firm, while saving material, on the other hand, since the electronic component that circuit board is worked as is more, fixed plate volume The excessive installation that may will affect neighbouring electronic component.

Further, mortgage plate is extended in one side two sides that fixed plate is attached to iron core, and the bolt passes through iron core two sides Mortgage plate is threadedly secured on mortgage plate.

Through the above technical solutions, by mortgage plate by fixed plate and iron core stationary phase for by orthogonal iron core with Fixed between fixed plate it is more convenient, by bolt by iron core clamping achieve the effect that be fixed to each other between silicon steel sheet.

Further, fixed plate is equal with the height of iron core.

Through the above technical solutions, one side fixed plate, which can return from top to bottom iron core, plays fixed effect, On the other hand, fixed plate is avoided without departing from iron core since fixed plate is higher by the thickness of increase installation rear casing caused by iron core.

Further, iron core two sides are provided with no less than two fixed plates, and every side fixed plate is mutually interconnected by mortgaging plate It connects.

Through the above technical solutions, the fixation of muti-piece fixed plate can allow the fixed effect of iron core more preferable, while will fix Plate connects the stability that can be improved fixed plate between each other.

Further, two pieces of silicon steel sheet junctions are provided with side solid plate, screw thread in the side solid plate in fixed plate It is connected with the jackscrew being connected on iron core.

Through the above technical solutions, the junction between two panels silicon steel sheet exists since silicon steel sheet is spliced by two pieces Alternating current generates may collide under magnetic fields, generate noise, be squeezed from side by iron core by side solid plate and jackscrew It is fixed, reduce vibration caused by the mutual collision between silicon steel sheet.

In summary the utility model have the utility model has the advantages that

1. the utility model limits the vibration of iron core or so while iron core is fixed together by the way that fixed plate is arranged Achieve the effect that reduce noise.

2. the utility model avoids the collision between fixed plate and connecting plate by that will connect and fixed plate integrally connected The noise of generation.

3. the utility model is fixed iron core by connecting multiple fixed plates, fixed effect is with good.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of embodiment 1；

Fig. 2 is in Fig. 1 along line A-A cross-sectional view；

Fig. 3 be in embodiment 1 upper piece with the structural schematic diagram of bottom sheet.

Appended drawing reference: 1, skeleton；2, iron core；20, upper piece；21, bottom sheet；3, fixed plate；4, connecting plate；5, plate is mortgaged；6, Circuit board；7, side solid plate；8, winding coil.

Specific embodiment

A kind of high frequency transformer, referring to Fig.1, including skeleton 1, the winding coil being wrapped on skeleton 18 and iron core 2, 2 a part of the iron core is located at 1 inside a part of skeleton and is coated on 1 outside of skeleton, and the silicon steel sheet has upper piece 20 and bottom sheet 21 It is spliced, several silicon steel sheets are stacked to form iron core 2, and the skeleton 1 is equipped with pin, the pin and winding coil 8 Lotus root connects, and pin is inserted into circuit board 6 and carries out circuit connection.

2 two sides of iron core are vertically installed with the fixed plate 3 of triangle, adjacent two right-angle side of the fixed plate 3 respectively with electricity Road plate 6 and iron core 2 contact, and the upper and lower ends that fixed plate 3 contacts one side of iron core 2 extend mortgage plate 5, and 2 two sides of iron core are supported Keeper 5 passes through iron core 2 by bolt and is fixed.

It, will be multiple by mortgage plate 5 in order to make fixed effect more preferably multiple fixed plates 3 can be arranged in the side of iron core 2 3 integrally connected of fixed plate.Two fixed plates 3 are set in the present embodiment.While in order to reduce the occupied circuit board 6 of fixed plate 3 On space, 3 height of fixed plate is equal with the height of iron core 2, can reduce due to fixed plate 3 setting increase shell thickness Degree.

It is fixed more convenient in order to facilitate fixed plate 3 and circuit board 6, on one side that fixed plate 3 is contacted with circuit board 6 to two sides It is extended with connecting plate 4, the connecting plate 4 is threaded on circuit board 6.

Since silicon steel sheet is spliced by two pieces, the junction between two panels silicon steel sheet generates magnetic fields in alternating current Under may collide, generate noise, fixed plate 3 it is corresponding upper piece 20 extend with the setting of piece junction and be attached on silicon steel sheet Side solid plate 7, the jackscrew being connected on silicon steel sheet is threaded in side solid plate 7.It is squeezed by side solid plate 7 and jackscrew from side Pressure is fixed by iron core 2, reduces vibration caused by the mutual collision between silicon steel sheet.

Specific implementation process is wrapped with winding coil 8 on skeleton 1, and silicon steel sheet is mounted on formation iron core 2 on skeleton 1, Two right-angle sides of fixed plate 3 are attached on iron core 2 and circuit board 6 by iron core 2, with screw by the connection with 3 integrally connected of fixed plate Plate 4 is fixed on circuit board 6, is passed through mortgage plate 5 and iron core 2 with bolt, two fixed plates 3 is connected and fixed, while silicon steel sheet phase Mutually between mortgage fix, prevent the vibration and mutual collision of silicon steel sheet, tighten on side plate be located at upper piece 20 under The jackscrew of 21 junction of piece prevents a vibration and collision piece between 20 and bottom sheet 21, and then reduces noise.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (8)

1. a kind of high frequency transformer, including skeleton (1), the winding coil (8) being wrapped on skeleton (1) and insertion skeleton (1) Interior iron core (2), it is characterised in that: iron core (2) two sides are vertically and fixedly provided with fixed plate (3), and two fixed plates (3) are by wearing The bolt for crossing fixinig plate group is fixedly connected, and the fixed plate (3) is fixed on circuit board (6).

2. high frequency transformer according to claim 1, it is characterised in that: the fixed plate (3) is close to circuit board (6) one side It is fixed with connecting plate (4) perpendicular to fixed plate (3), the connecting plate (4) is threaded on circuit board (6).

3. high frequency transformer according to claim 2, it is characterised in that: integrally connect between connecting plate (4) and fixed plate (3) It connects.

4. high frequency transformer according to claim 3, it is characterised in that: the fixed plate (3) is arranged to right angled triangle, And two right-angle side be attached on iron core (2) and circuit board (6) respectively.

5. high frequency transformer according to claim 1, it is characterised in that: fixed plate (3) is attached to one side two sides of iron core (2) Extend mortgage plate (5), the mortgage plate (5) that the bolt passes through iron core (2) two sides is threadedly secured on mortgage plate (5).

6. high frequency transformer described in -5 any one according to claim 1, it is characterised in that: fixed plate (3) and iron core (2) It is highly equal.

7. high frequency transformer according to claim 5, it is characterised in that: iron core (2) two sides are provided with no less than two pieces Fixed plate (3), every side fixed plate (3) are connected with each other by mortgage plate (5).

8. high frequency transformer according to claim 1, it is characterised in that: connect in fixed plate (3) relative to two blocks of silicon steel sheets The place of connecing is provided with side solid plate (7), is threaded with the jackscrew being connected on iron core (2) on the side solid plate (7).