CN214203401U

CN214203401U - Embedded over-temperature protection electronic transformer

Info

Publication number: CN214203401U
Application number: CN202120480279.3U
Authority: CN
Inventors: 李群
Original assignee: Tianxue Co ltd
Current assignee: Tianxue Co ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-09-14
Anticipated expiration: 2031-03-05

Abstract

The utility model discloses an embedded excess temperature protection electronic transformer, the protective housing comprises a protective housing, the inner wall fixedly connected with heat absorption piece of protective housing, the inner wall fixedly connected with line frame of heat absorption piece, the inner wall fixedly connected with coil of line frame, the inner wall fixedly connected with insulation board and the magnetic core of line frame, and the insulation board is located the top of coil, the magnetic core is located the top of insulation board, the top of insulation board is provided with excess temperature protection resistance, excess temperature protection resistance's outer fixed surface is connected with insulating shell, excess temperature protection resistance's outer fixed surface is connected with the lead wire, the lead wire runs through the insulation board. The utility model discloses in, be provided with: vent, aversion motor, threaded rod, ventilation door, spacing spring, cooling fan and heat absorption piece, the inside high temperature of transformer is avoided leading to the damage of transformer internals to furthest's promotion radiating effect, has huge practical application and worth.

Description

Embedded over-temperature protection electronic transformer

Technical Field

The utility model relates to a transformer technical field especially relates to an embedded excess temperature protection electronic transformer.

Background

An electronic transformer, which is an electronic device for converting alternating voltage of commercial power into direct current and then forming a high-frequency alternating voltage output by a semiconductor switching device, an electronic element and a high-frequency transformer winding, is also an alternating current-direct current-alternating current inverter circuit taught in the theory of electronics. In brief, it is mainly composed of a high-frequency transformer core (iron core) and two or more coils, which do not change their positions, and are converted into alternating voltage and current from one or more electric loops by means of electromagnetic induction through alternating current power. At the output end of the high-frequency transformer, high-frequency alternating current or direct current of different voltage levels is supplied to one or more than two circuit utilization circuits.

The protective shell of the electronic transformer used at present has poor heat dissipation function, and the electronic transformer can influence the work due to overhigh temperature.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an embedded over-temperature protection electronic transformer.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an embedded over-temperature protection electronic transformer comprises a protective shell, wherein the inner wall of the protective shell is fixedly connected with a heat absorbing sheet, the inner wall of the heat absorbing sheet is fixedly connected with a wire frame, the inner wall of the wire frame is fixedly connected with a coil, the inner wall of the wire frame is fixedly connected with an insulating plate and a magnetic core, the insulating plate is positioned at the top end of the coil, the magnetic core is positioned above the insulating plate, an over-temperature protection resistor is arranged above the insulating plate, the outer surface of the over-temperature protection resistor is fixedly connected with an insulating shell, the outer surface of the over-temperature protection resistor is fixedly connected with a lead wire, the lead wire penetrates through the insulating plate, the top end of the protective shell is fixedly connected with a support block, one side of the support block is rotatably connected with a ventilation door, the bottom fixedly connected with spacing spring of piece, the interior roof fixedly connected with stopper of protective housing, and the stopper is located the below of spacing spring.

As a further description of the above technical solution:

vents are formed in the two sides of the protective shell.

As a further description of the above technical solution:

the inner wall of protective housing is close to top edge fixedly connected with shift motor, shift motor's drive end fixedly connected with threaded rod, the surface threaded connection of threaded rod has the motor cabinet, motor cabinet and protective housing sliding connection, the bottom fixedly connected with cooling fan of motor cabinet.

As a further description of the above technical solution:

the antetheca of protective housing is provided with observation window and radiating groove, the observation window is located the top of radiating groove.

As a further description of the above technical solution:

the ventilation door is Z-shaped, and both ends of the ventilation door are provided with round corners.

As a further description of the above technical solution:

the heat absorbing sheet is made of heat conducting silica gel.

The utility model discloses following beneficial effect has: an embedded over-temperature protection electronic transformer is provided with: the ventilation opening, the aversion motor, the threaded rod, the motor cabinet, cooling fan and heat absorption piece, can conduct the heat conduction that the transformer during operation produced out the protective housing through the heat absorption piece, the ventilation opening that sets up simultaneously can accelerate the inside and outside air exchange speed of protective housing and promote rate of heat dissipation, rotate the threaded rod and then remove cooling fan through the aversion motor drive end that sets up, just so can accomplish to use the fan to fully dispel the heat with the transformer.

Is provided with: ventilation door, spacing spring and stopper, when transformer inside is overheated to lead to the steam inflation, steam pushes the ventilation door open, promotion radiating effect that can furthest, and the realization of simultaneously coordinating to reset of spacing spring is closed the time of practicing thrift and close the door when steam exhaust back is automatic.

Drawings

Fig. 1 is a cross-sectional view of an embedded over-temperature protection electronic transformer according to the present invention;

fig. 2 is a front view of an embedded over-temperature protection electronic transformer provided by the present invention;

fig. 3 is an enlarged view of a position a of the electronic transformer with embedded over-temperature protection provided by the present invention.

Illustration of the drawings:

1. a protective shell; 2. a heat absorbing sheet; 3. a wire frame; 4. a coil; 5. an over-temperature protection resistor; 6. an insulating case; 7. an insulating plate; 8. a magnetic core; 9. a lead wire; 10. a vent; 11. a displacement motor; 12. a threaded rod; 13. a motor base; 14. a heat radiation fan; 15. supporting a block; 16. a ventilation door; 17. a limiting spring; 18. a limiting block; 19. an observation window; 20. a heat dissipation groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: an embedded over-temperature protection electronic transformer comprises a protective shell 1, wherein a heat absorbing sheet 2 is fixedly connected to the inner wall of the protective shell 1, heat generated during the operation of the transformer can be conducted out of the protective shell 1 through the heat absorbing sheet 2, a wire frame 3 is fixedly connected to the inner wall of the heat absorbing sheet 2, a coil 4 is fixedly connected to the inner wall of the wire frame 3, an insulating plate 7 and a magnetic core 8 are fixedly connected to the inner wall of the wire frame 3, the insulating plate 7 is positioned at the top end of the coil 4, the magnetic core 8 is positioned above the insulating plate 7, an over-temperature protection resistor 5 is arranged above the insulating plate 7, an insulating shell 6 is fixedly connected to the outer surface of the over-temperature protection resistor 5, a lead wire 9 is fixedly connected to the outer surface of the over-temperature protection resistor 5, the lead wire 9 penetrates through the insulating plate 7, a support block 15 is fixedly connected to the top end of the protective shell 1, a ventilation door 16 is rotatably connected to one side of the support block 15, and a limiting spring 17 is fixedly connected to the bottom end of the support block 15, the interior roof fixedly connected with stopper 18 of protective housing 1, and stopper 18 is located limiting spring 17's below, and when overheated leading to steam inflation in the transformer inside, steam pushes vent door 16 open, can furthest's promotion radiating effect, cooperates limiting spring 17's the realization that resets simultaneously to close the door when steam discharge back is automatic to close the time of closing the door.

Vents 10 are formed in two sides of the protective shell 1, and the vents 10 can accelerate the air exchange speed inside and outside the protective shell 1 to improve the heat dissipation rate.

Inner wall of protective housing 1 is close to top edge fixedly connected with shift motor 11, shift motor 11's drive end fixedly connected with threaded rod 12, the surface threaded connection of threaded rod 12 has motor cabinet 13,

motor cabinet

13 and 1 sliding connection of protective housing, the bottom fixedly connected with cooling fan 14 of motor cabinet 13, the 11 drive end of shift motor of setting rotates threaded rod 12 and then removes cooling fan 14, just so can accomplish to use the fan to carry out abundant heat dissipation with the transformer.

The front wall of the protective shell 1 is provided with an observation window 19 and a heat dissipation groove 20, the observation window 19 is positioned above the heat dissipation groove 20, the internal condition of the protective shell 1 can be observed conveniently, and meanwhile, the heat dissipation efficiency is accelerated.

The ventilation door 16 is the zigzag, and the both ends of ventilation door 16 all are provided with the fillet, and the setting of zigzag and fillet can make things convenient for opening and closing of ventilation door 16.

The heat absorbing sheet 2 is made of heat conducting silica gel, so that the heat conducting speed is high, and the heat radiating effect is good.

The working principle is as follows: the utility model provides an embedded excess temperature protection electronic transformer, when the inside steam of transformer is too much, protective housing 1 is derived in the heat transfer that the heat absorption piece 2 can produce the transformer during operation, steam pushes vent 16 open simultaneously, steam passes through vent 16 this moment, vent 10 and radiating groove 20 heat dissipation, and shift motor 11 drive end rotates and drives threaded rod 12 and rotate, threaded rod 12 removes motor cabinet 13, remove about cooling fan 14 like this and dispel the heat, promote the radiating efficiency, after the heat dissipation finishes, limiting spring 17 has avoided external debris to pass through vent 16 with vent 16 return and has got into in the protective housing 1.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an embedded excess temperature protection electronic transformer, includes protective housing (1), its characterized in that: the inner wall of the protective shell (1) is fixedly connected with a heat absorbing sheet (2), the inner wall of the heat absorbing sheet (2) is fixedly connected with a wire frame (3), the inner wall of the wire frame (3) is fixedly connected with a coil (4), the inner wall of the wire frame (3) is fixedly connected with an insulating plate (7) and a magnetic core (8), the insulating plate (7) is positioned at the top end of the coil (4), the magnetic core (8) is positioned above the insulating plate (7), an over-temperature protection resistor (5) is arranged above the insulating plate (7), the outer surface of the over-temperature protection resistor (5) is fixedly connected with an insulating shell (6), the outer surface of the over-temperature protection resistor (5) is fixedly connected with a lead (9), the lead (9) penetrates through the insulating plate (7), the top end of the protective shell (1) is fixedly connected with a support block (15), one side of the support block (15) is rotatably connected with a ventilation door (16), the bottom end of the supporting block (15) is fixedly connected with a limiting spring (17), the inner top wall of the protective shell (1) is fixedly connected with a limiting block (18), and the limiting block (18) is located below the limiting spring (17).

2. The electronic transformer with embedded over-temperature protection of claim 1, wherein: both sides of the protective shell (1) are provided with ventilation openings (10).

3. The electronic transformer with embedded over-temperature protection of claim 1, wherein: the inner wall of protective housing (1) is close to top edge fixedly connected with shift motor (11), the drive end fixedly connected with threaded rod (12) of shift motor (11), the surface threaded connection of threaded rod (12) has motor cabinet (13), motor cabinet (13) and protective housing (1) sliding connection, the bottom fixedly connected with radiator fan (14) of motor cabinet (13).

4. The electronic transformer with embedded over-temperature protection of claim 1, wherein: the front wall of the protective shell (1) is provided with an observation window (19) and a heat dissipation groove (20), and the observation window (19) is located above the heat dissipation groove (20).

5. The electronic transformer with embedded over-temperature protection of claim 1, wherein: the ventilation door (16) is Z-shaped, and fillets are arranged at two ends of the ventilation door (16).

6. The electronic transformer with embedded over-temperature protection of claim 1, wherein: the heat absorbing sheet (2) is made of heat conducting silica gel.