CN203552884U - Vibration-attenuation transformer - Google Patents

Abstract

The utility model relates to a vibration-attenuation transformer. The vibration-attenuation transformer comprises an iron core formed by overlapping a plurality of silicon steel sheets, an outer shell arranged at the outer side of the iron core, a plastic air bubble film fixed between the periphery of the iron core and the outer shell, and a tensioning spring, wherein one end of the tensioning spring is fixed to the lower plane of the top of the outer shell, the other end of the tensioning spring is fixed to the upper end of the iron core, two sides of the bottom of the outer shell are respectively fixedly provided with two rubber pads, two ends of a steel plate are respectively clamped between two rubber pads and are fastened through screws and nuts, a rubber plate is fixed to the upper portion of the steel plate, and the bottom of the iron core is located on the rubber plate. Due to the fact that the plastic air bubble film has the effects of buffering and vibration attenuation, the iron core moves vertically to enable the steel plate to generate elastic deformation, and the vibration-attenuation function is achieved. By cooperating with the tensioning spring at the top end, the vertical vibration of the iron core can be all buffered and absorbed, and therefore the noise caused by impact contact due to vibration is effectively lowered, and the service life of the transformer is prolonged.

Description

A kind of vibration attenuation transformer

Technical field

The utility model relates to technical field of electricity, is specifically related to a kind of transformer.

Background technology

The inner iron core of transformer is owing to causing magnetostriction by alternating flux, thereby causing to vibrate causes transformer to produce noise, and Long-term Vibration can cause iron core seam to increase, core slackness, thereby can allow further aggravation of vibration, noise is increasing, has shortened the useful life of transformer.

Summary of the invention

The utility model is in order to overcome the deficiency of above technology, provides a kind of effective solution iron core to cause vibration, produce the vibration attenuation transformer of noise because of magnetostriction.

The utility model overcomes the technical scheme that its technical problem adopts:

This vibration attenuation transformer, comprise the iron core that formed by the stack of some silicon steel sheets, be arranged at the shell outside iron core, the extension spring that its other end of cover top portion lower plane is fixed on iron core upper end is fixed in plastic bubble film, one end of being fixed between iron core surrounding and shell, the two bottom sides of described shell is fixed with respectively two rubber blankets, one steel plate two ends are clipped on respectively between two rubber blankets also fastening by screw and nut, the top of described steel plate is fixed with rubber slab, and the bottom of described iron core is seated on rubber slab.

When realizing excess Temperature, transformer is lowered the temperature automatically, also comprise the temperature sensor and the relay that are installed in shell, be installed on the electronic refrigerating sheet between silicon steel sheet, described temperature sensor is electrically connected on the control end of relay, the input of described relay is connected in the secondary coil of transformer, and described electronic refrigerating sheet is connected in the output of relay.

The beneficial effects of the utility model are: because plastic bubble film can start the effect of buffer shock-absorbing, thereby iron core upper and lower displacement makes steel plate produce strain and plays damping effect, coordinate again the extension spring on top can make the up-down vibration of iron core all be cushioned absorption, rubber slab and steel plate two ends bearing are set between iron core and steel plate and rubber blanket is set can prevents from contacting and causing covibration between metal, further avoid the generation of vibration, noise.Thereby can effectively reduce the collision causing because of vibration, contact the noise causing, extended the useful life of transformer.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is silicon steel sheet position side-looking structural representation;

In figure, 1. shell 2. plastic bubble film 3. temperature sensor 4. iron core 5. extension spring 6. rubber blanket 7. rubber slab 8. steel plate 9. nut 10. screw 11. silicon steel sheet 12. electronic refrigerating sheet 13. relays.

Embodiment

Below in conjunction with accompanying drawing 1,2 pairs of the utility model of accompanying drawing, be described further.

This vibration attenuation transformer, comprise that iron core 4, the shell 1 that is arranged at iron core 4 outsides being formed by the stack of some silicon steel sheets, plastic bubble film 2, one end of being fixed between iron core 4 surroundings and shell 1 be fixed on the extension spring 5 that shell 1 its other end of top lower plane is fixed on iron core 4 upper ends, the two bottom sides of shell 1 is fixed with respectively two rubber blankets 6, one steel plate 8 two ends are clipped on respectively between two rubber blankets 6 also fastening by screw 10 and nut 9, the top of steel plate 8 is fixed with rubber slab 7, and the bottom of iron core 4 is seated on rubber slab 7.When transformer is worked, due to magnetostriction, iron core 4 can produce vibration, because iron core 4 and the surrounding junction of shell 1 are provided with plastic bubble film 2, plastic bubble film 2 can start the effect of buffer shock-absorbing, thereby iron core 4 upper and lower displacements make steel plate 8 produce strain and play damping effect, coordinate again the extension spring 5 on top can make the up-down vibration of iron core 4 all be cushioned absorption, rubber slab 7 and steel plate 8 two ends bearings are set between iron core 4 and steel plate 8 to be arranged rubber blanket 6 and can prevent from contacting and causing covibration between metal, further avoid vibration, the generation of noise.Because the vibration of iron core 4 all arranges the collision that snubber device is avoided itself and shell 1 in each degree of freedom, thereby can effectively reduce the noise that the collision contact that causes because of vibration causes, extend the useful life of transformer.

If excess Temperature can be accelerated the degree of aging of transformer insulated material in transformer running, when ageing of insulation, it becomes dry easily crisp, when vibrating, transformer tends to come off, thereby make transformer fault, affected the useful life of transformer, as shown in Figure 2, this vibration attenuation transformer also comprises temperature sensor 3 and the relay 13 being installed in shell 1, be installed on the electronic refrigerating sheet 12 between silicon steel sheet 11, temperature sensor 3 is electrically connected on the control end of relay 13, the input of relay 13 is connected in the secondary coil of transformer, electronic refrigerating sheet 12 is connected in the output of relay 13.When temperature sensor 3 detects transformer internal temperature when too high, its control relay 13 adhesives, the output conducting by electronic refrigerating sheet 12 with transformer, thereby electronic refrigerating sheet 12 work refrigeration, thereby make transformer cooling, to extend the useful life of transformer.Due to electronic refrigerating sheet 12 movement-less parts, thereby when work noiseless, long without wearing and tearing, life-span, reliability is high, thereby be applied in transformer and can guarantee that its stable working is reliable, and it has the advantage that lightweight volume is little and is easily installed in the small space between silicon steel sheet.

Claims (2)

1. a vibration attenuation transformer, it is characterized in that: comprise the iron core (4) being formed by some silicon steel sheet stacks, be arranged at the shell (1) in iron core (4) outside, be fixed on the plastic bubble film (2) between iron core (4) surrounding and shell (1), the extension spring (5) that shell (1) top its other end of lower plane is fixed on iron core (4) upper end is fixed in one end, the two bottom sides of described shell (1) is fixed with respectively two rubber blankets (6), one steel plate (8) two ends are clipped on respectively between two rubber blankets (6) also fastening by screw (10) and nut (9), the top of described steel plate (8) is fixed with rubber slab (7), the bottom of described iron core (4) is seated on rubber slab (7).

2. vibration attenuation transformer according to claim 1, it is characterized in that: also comprise the temperature sensor (3) and the relay (13) that are installed in shell (1), be installed on the electronic refrigerating sheet (12) between silicon steel sheet (11), described temperature sensor (3) is electrically connected on the control end of relay (13), the input of described relay (13) is connected in the secondary coil of transformer, and described electronic refrigerating sheet (12) is connected in the output of relay (13).

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