CN212084792U

CN212084792U - Low-noise dry-type transformer

Info

Publication number: CN212084792U
Application number: CN202021270470.7U
Authority: CN
Inventors: 陈书荣
Original assignee: Chongqing Jiuneng Holding Co ltd
Current assignee: Chongqing Jiuneng Holding Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2020-12-04
Anticipated expiration: 2030-07-01

Abstract

The utility model provides a low noise dry-type transformer, the base of two bases is fixed with, be fixed with down the indisputable yoke between two bases, be fixed with three insulating plastic bucket side by side on the indisputable yoke down, every insulating plastic bucket internal fixation has the iron leg, cup joint the embedment on the iron leg and have a primary winding coil and a secondary winding coil, the both ends of primary winding coil are connected with upper and lower connector lug electricity on the insulating plastic bucket lateral wall respectively, insulating plastic bucket top is fixed with the support, it is connected with three high low pressure conducting rod to correspond on the support, the high low pressure sleeve pipe has been cup jointed on the high low pressure conducting rod, fixedly connected with upper iron yoke between the support, wear to be equipped with the insulating tube that both ends stretched out the indisputable yoke side in upper iron yoke and the indisputable yoke down, the insulating rubber pad has been cup jointed on the insulating tube that stretches out the indisputable yoke side, the spiro union has the indisputable yoke bolt that presss from both sides tight. The through type clamping is adopted for the upper iron yoke and the lower iron yoke, so that the running noise of the dry-type transformer can be effectively reduced.

Description

Low-noise dry-type transformer

Technical Field

The utility model relates to a transformer technical field, concretely relates to low noise dry-type transformer.

Background

The transformer is a device for changing alternating voltage by using the principle of electromagnetic induction, is an important link for transmission, distribution and use of electric energy, and can be divided into an oil-immersed transformer and a dry-type transformer according to insulation and cooling conditions. Because the dry-type transformer has good fireproof performance, is convenient to install and has no pollution, the dry-type transformer is usually used in indoor occasions with higher fireproof requirements. The inventor of the utility model discovers through research that present dry type transformer leads to dry type transformer's the degree of clamp not enough because the indisputable yoke at upper and lower both ends adopts the bandage formula centre gripping, therefore dry type transformer's operation noise is great.

SUMMERY OF THE UTILITY MODEL

To current dry-type transformer because the yoke at upper and lower both ends adopts the bandage formula centre gripping, lead to dry-type transformer's the degree of clamp not enough, therefore the great technical problem of dry-type transformer operation noise, the utility model provides a low noise dry-type transformer.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a low noise dry-type transformer, includes the base, be fixed with two bases of relative configuration on the base, yoke under fixedly connected with between two bases, be fixed with the three insulating plastic bucket that arranges side by side on the yoke down, every insulating plastic bucket is inside vertically to be fixed with the iron leg, cup joint the embedment on the iron leg and have a primary winding coil and a secondary winding coil, the both ends of primary winding coil are connected with last connector lug and the lower connector lug electricity on the insulating plastic bucket lateral wall respectively, insulating plastic bucket top is fixed with two supports of relative configuration, correspond on two supports and be connected with three high-voltage conducting rod and three low pressure conducting rod, cup jointed high-voltage sleeve on the high-voltage conducting rod, cup jointed low-voltage sleeve pipe on the low pressure conducting rod, on an insulating plastic bucket lateral wall go up the connector lug and the lower connector lug on a high-voltage conducting rod and another insulating plastic bucket lateral wall and be connected electrically simultaneously, the one end of secondary winding coil is connected through first copper bar and a low pressure conducting rod electricity in the insulating plastic bucket, in the three insulating plastic bucket the other end of secondary winding coil passes through the second copper bar and is connected with zero looks connecting strip fixed electricity, fixedly connected with goes up the indisputable yoke between two supports, go up the indisputable yoke and wear to be equipped with the insulating tube that both ends stretched out the indisputable yoke side down in the indisputable yoke, the insulating rubber pad has been cup jointed on the insulating tube that stretches out the indisputable yoke side, the spiro union has the indisputable yoke bolt of pressing from both sides tight indisputable yoke on the insulating tube in the insulating rubber pad outside.

Compared with the prior art, the low-noise dry-type transformer provided by the utility model has the advantages that the two bases which are oppositely arranged are fixed on the base, the lower iron yoke is fixedly connected between the two bases, meanwhile, two brackets which are oppositely arranged are fixed at the top of the insulating plastic bucket, and an iron yoke is fixedly connected between the two brackets, and the upper iron yoke and the lower iron yoke are internally provided with insulating tubes with two ends extending out of the side surface of the iron yoke in a penetrating way, the insulating tubes extending out of the side surface of the iron yoke are sleeved with insulating rubber pads, iron yoke bolts for clamping the iron yoke are screwed on the insulating tubes outside the insulating rubber pads, namely, the upper iron yoke and the lower iron yoke are penetrated with the insulating tube and are screwed with the iron yoke bolt, thereby realizing the adoption of the center-penetrating clamping for the iron yokes at the upper end and the lower end of the dry-type transformer, effectively ensuring the clamping degree of the upper iron yoke and the lower iron yoke, therefore, the running noise of the dry type transformer is reduced, and the noise of 5-6 decibels can be reduced.

Furthermore, the insulating tube is arranged in the upper iron yoke and the lower iron yoke corresponding to the middle of the two insulating plastic barrels in a penetrating mode.

Furthermore, the insulating tube is an epoxy glass fiber insulating tube.

Drawings

Fig. 1 is a schematic view of a low-noise dry-type transformer according to the present invention.

Fig. 2 is a left side view schematic diagram of the low noise dry type transformer provided by the present invention.

Fig. 3 is an enlarged schematic view of a structure at a in fig. 2.

In the figure, 1, a base; 2. a base; 3. a lower iron yoke; 4. an insulating plastic barrel; 5. an upper connector lug; 6. a lower wire joint; 7. a support; 8. a high voltage conductive rod; 9. a high voltage bushing; 10. a first copper bar; 11. a second copper bar; 12. a zero phase connecting strip; 13. an upper iron yoke; 14. an insulating tube; 15. an insulating rubber pad; 16. yoke bolts.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.

In the description of the present invention, it is to be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified 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 to 3, the present invention provides a low noise dry transformer, which includes a base 1, two bases 2 disposed oppositely are fixed on the base 1, a lower iron yoke 3 is fixedly connected between the two bases 2, three insulating plastic barrels 4 disposed side by side are fixed on the lower iron yoke 3, an iron core column is vertically fixed inside each insulating plastic barrel 4, a primary winding coil and a secondary winding coil are sleeved and encapsulated on the iron core column, two ends of the primary winding coil are respectively electrically connected with an upper connector 5 and a lower connector 6 on the sidewall of the insulating plastic barrel 4, two brackets 7 disposed oppositely are fixed on the top of the insulating plastic barrel 4, three high voltage conductive rods 8 and three low voltage conductive rods (not shown) are correspondingly connected on the two brackets 7, a high voltage sleeve 9 is sleeved on the high voltage conductive rod 8, the low-voltage bushing is sleeved on the low-voltage conducting rod, the upper connector lug 5 on the side wall of one insulating plastic barrel 4 is simultaneously and electrically connected with one high-voltage conducting rod 8 and the lower connector lug 6 on the side wall of the other insulating plastic barrel 4, so that an external high-voltage power supply is led into a primary winding coil through the upper connector lug 5 through the high-voltage conducting rod 8, one end of the secondary winding coil in one insulating plastic barrel 4 is electrically connected with one low-voltage conducting rod through a first copper bar 10, so that a low-voltage power supply after the secondary winding coil is transformed is led out through a first copper bar, the other end of the secondary winding coil in the three insulating plastic barrels 4 is fixedly and electrically connected with a zero-phase connecting bar 12 through a second copper bar 11, so that the grounding protection effect is achieved, an upper iron yoke 13 is fixedly connected between the two supports 7, and an insulating tube 14 with two ends extending out of the side faces of the iron yokes is penetrated in the upper iron yoke 13 and the lower, an insulating rubber pad 15 is sleeved on the insulating tube 14 extending out of the side face of the iron yoke, and an iron yoke bolt 16 for clamping the iron yoke is screwed on the insulating tube outside the insulating rubber pad 15.

As a specific embodiment, please refer to fig. 1, the insulation tube 14 is inserted into the upper iron yoke 13 and the lower iron yoke 3 corresponding to the middle of the two insulation plastic barrels 4, that is, the insulation tube 14 inserted into the upper iron yoke and the lower iron yoke is located between the two edge plastic barrels 4, so that the iron yokes at the upper end and the lower end can be more conveniently clamped, and further the clamping degree of the upper iron yoke and the lower iron yoke is improved.

As a specific embodiment, the insulating tube 14 is an epoxy glass fiber insulating tube, that is, the insulating tube 14 is made of an existing epoxy glass fiber material, and the glass fiber has the characteristics of sound absorption, sound insulation, heat insulation, environmental protection, flame retardance and the like, so that the insulating tube is very suitable for being used in the application.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a low noise dry-type transformer, includes the base, its characterized in that, be fixed with two bases of relative configuration on the base, iron yoke under fixedly connected with between two bases, be fixed with the three insulating plastic bucket that arranges side by side on the iron yoke down, every the inside vertical iron leg that is fixed with of insulating plastic bucket, cup joint a primary winding coil and a secondary winding coil on the iron leg, the both ends of primary winding coil are connected with last connector lug and lower connector lug electricity on the insulating plastic bucket lateral wall respectively, insulating plastic bucket top is fixed with two supports of relative configuration, it is connected with three high-voltage conducting rod and three low pressure conducting rod to correspond on two supports, high-voltage sleeve has been cup jointed on the high-voltage conducting rod, cup jointed low-voltage sleeve pipe on the low-voltage conducting rod, on an insulating plastic bucket lateral wall go up connector lug and a high-voltage conducting rod and the lower connection on another insulating plastic bucket lateral wall The head is connected electrically simultaneously, in the insulating plastic bucket the one end of secondary winding coil is connected through first copper bar and a low pressure conducting rod electricity, in the three insulating plastic bucket the other end of secondary winding coil passes through the second copper bar and is connected with zero looks connecting strip fixed electricity, fixedly connected with goes up the indisputable yoke between two supports, go up the insulating tube that wears to be equipped with both ends in indisputable yoke and the indisputable yoke down and stretch out the indisputable yoke side, has cup jointed the insulating rubber pad on the insulating tube that stretches out the indisputable yoke side, the spiro union has the indisputable yoke bolt of the tight indisputable yoke of clamp on the insulating tube in the insulating rubber pad outside.

2. The low noise dry transformer of claim 1, wherein the insulation tube is inserted into the corresponding upper and lower yokes between the two insulation plastic barrels.

3. The low noise dry transformer of claim 1, wherein the insulation tube is an epoxy glass fiber insulation tube.