CN205542360U

CN205542360U - Voltage transformer with big creepage distance

Info

Publication number: CN205542360U
Application number: CN201620050153.1U
Authority: CN
Inventors: 胡定波
Original assignee: Orient Electric Co ltd
Current assignee: Orient Electric Co ltd
Priority date: 2016-01-19
Filing date: 2016-01-19
Publication date: 2016-08-31
Anticipated expiration: 2026-01-19

Abstract

The utility model discloses a voltage transformer with big creepage distance, including the bolt of once working a telephone switchboard, the pouring body, mounting plate and winding mechanism, winding mechanism is fixed in through the resin pouring pour into a mould internally to respectively with once work a telephone switchboard the bolt with be located secondary connection bolts electricity on the pouring body is connected, once work a telephone switchboard the bolt by setting up separately a binding post and the 2nd binding post of both sides constitutes around the pouring body evenly distributed is gone up to pouring between a binding post and the 2nd binding post body has many strip muscle, this strip muscle to set up the orientation mutually perpendicular with connecting wire between a binding post and the 2nd binding post, many the strip muscle forms creepage distance and increases the structure. It is showing the effect: mutual -inductor surface creepage distance has been increased to prevent between two high voltage electrode creepagely, make the product enable to be used in in the soiled environment abominable more.

Description

There is the voltage transformer of big creep age distance

Technical field

This utility model relates to transformer control of product quality technical field, specifically, is A kind of voltage transformer with big creep age distance.

Background technology

Transformer is the equipment of scaling transformation voltage or electric current.Its function is mainly high voltage Or electric current scaling transformation greatly becomes normal low voltage or standard small area analysis, in order to realize measuring instrument Table, protection equipment and the standardization of automatic controlling device, miniaturization.Transformer can also be used with simultaneously Separate high-voltage system, to ensure the safety of the person and equipment, scaling transformation voltage or electricity The equipment of stream.

When transformer carries out structure design, creep age distance is one of factor of consideration, creepage Distance is between two conductive parts recorded along insulating surface or conductive parts and equipment Beeline between protection interface.Under different service conditions, exhausted due to around conductor Edge material is electrically polarized, and causes insulant to present electrification phenomenon, and the radius of this live zone is Creep age distance.Between two conductive components, or conductive component and equipment and easy contact surface Between along the shortest space length of insulant surface measurement.Distance along insulating surface electric discharge is Leakage distance is also referred to as creep age distance, is called for short creep distance.

Creep distance=surface distance/system ceiling voltage.For high voltage potential transformer, two high The spacing of pressure side is the least, needs the spacing tightening control between conductive component, thus ensures to lead Creepage spacing between electricity parts, in prescribed limit, the most often uses and extends distance and realize, But simple prolongation distance frequently can lead to the increase of equipment volume, equipment uses mould material Increase.

Summary of the invention

For the deficiencies in the prior art, the purpose of this utility model is to provide one and has the most creepage The voltage transformer of distance, this transformer adds alternate surface creepage distance, makes the dirt of product Dirty grade improves, it is possible to make the environment that product adaptation is the most dirty.

For reaching above-mentioned purpose, the technical solution adopted in the utility model is as follows:

A kind of voltage transformer with big creep age distance, including primary connection bolt, pour mass, Mounting base and winding mechanism, described primary connection is bolted to described pour mass top, The bottom of described pour mass is fixing with mounting base to be connected, and described winding mechanism passes through resin-cast Be fixed in described pour mass, and respectively with primary connection bolt and being positioned on described pour mass Secondary connection bolt electrically connects, and it it is critical only that: described primary connection bolt is by setting up separately described Before and after pour mass, the first binding post and second binding post of both sides are constituted, and connect described first Many strip muscle it are evenly distributed with on pour mass between line terminals and the second binding post, this Connecting line between the setting direction of shape muscle with the first binding post and the second binding post hangs down mutually Directly, many described strip muscle form creep age distance increases structure.

This transformer is made up of above-mentioned many strip muscle by increasing in tradition transformer structure Creep age distance increase structure, add transformer surface creepage distance, thus stop two high Between piezoelectricity pole creepage, make the gradation for surface pollution of product improve, make product can use more severe In dirty environment.

Further, described winding mechanism includes the first winding, iron core and is wound on iron core The second winding, described first winding passes sequentially through primary winding support, an inserts with described Primary connection bolt electrically connects, and a described winding suspension cover is located in Secondary Winding, this secondary Connect on winding and have secondary inserts, described secondary inserts and the secondary being arranged on described pour mass Connection bolt electrically connects, and the bottom of described iron core is provided with liftable hoisting bracket.

In this transformer production process, first copper sheet one end of primary winding support is welded on Fixing on winding, the other end of primary winding support is an inserts, it is possible to use screw Being fixed on mould, then iron core is fixed on mould by hoisting bracket, and hoisting bracket is permissible Lifting, such that it is able to distance between winding and Secondary Winding of regulation, and a winding And unsettled between Secondary Winding, it is ensured that the insulation of transformer, improve product quality.And Epoxy sheet need not be loaded, save man-hour.

Further, the left and right sides bottom described pour mass is equiped with embedding mother respectively, and this is embedding Earth lead on female and described iron core electrically connects, and is equiped with fixing screw in this embedding mother, described Pour mass realizes being connected with the fixing of mounting base by this fixing screw.

Further, the left side wall of described pour mass is fixed with nameplate, this nameplate includes But it is not limited to the model of transformer, specification, rated transformation ratio, class of accuracy, secondary capacity etc. The information such as the installation dimension of basic parameter and transformer.

Further, described mounting base offers four U-shaped mounting grooves.

By U-shaped mounting groove, it is possible to more easily carry out mutual inductance than traditional circular mounting hole The installation of device.

Remarkable result of the present utility model is: increases structure by arranging creep age distance, adds Transformer surface creepage distance, thus stop between two high-field electrodes creepage, make the dirt of product Dirty grade improves, and makes product can use in the most dirty environment；Winding and two Between secondary winding unsettled, it is ensured that the insulation of transformer, improve product quality；Hoisting bracket Can lift, such that it is able to distance between winding and Secondary Winding of regulation；And need not Filling epoxy sheet, saves man-hour；All parts are installed in the upper surface installing floor, Ensure that the bottom of transformer is more attractive in appearance, and be easy to it and install and use.

Accompanying drawing explanation

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

Fig. 2 is the left view of Fig. 1；

Fig. 3 is the top view of Fig. 1；

Fig. 4 is the structural representation of described winding mechanism

Detailed description of the invention

Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model and operation principle are made into One step describes in detail.

As shown in Figure 1 to 4, a kind of voltage transformer with big creep age distance, including one Secondary connection bolt 1, pour mass 2, mounting base 3 and winding mechanism, described primary connection Bolt 1 is fixed on described pour mass 2 top, the bottom of described pour mass 2 and mounting base 3 Fixing connection, described winding mechanism is fixed in described pour mass 2 by resin-cast, and divides It is not electrically connected with primary connection bolt 1 and the secondary connection bolt 10 being positioned on described pour mass 2 Connecing, described primary connection bolt 1 is by setting up first wiring of both sides before and after described pour mass 2 separately Terminal 1a and the second binding post 1b is constituted, and connects at described first binding post 1a and second Four strip muscle 4 it are evenly distributed with, this strip muscle 4 on pour mass 2 between line terminals 1b Setting direction hang down mutually with the connecting line between the first binding post 1a and the second binding post 1b Directly, four described strip muscle 4 form creep age distance increases structure, on described mounting base 3 Offer four U-shaped mounting grooves 16.

As in figure 2 it is shown, be fixed with nameplate 15 on the left side wall of described pour mass 2, this inscription On board 15 including, but not limited to the model of transformer, specification, rated transformation ratio, class of accuracy, The information such as the installation dimension of the basic parameters such as secondary capacity and transformer.

Seeing accompanying drawing 4, described winding mechanism includes the first winding, iron core 5 and is wound on ferrum The second winding 6 on core 5, described first winding passes sequentially through primary winding support 7, once Inserts 8 electrically connects with described primary connection bolt 1, and a described winding suspension cover is located at secondary On winding 6, this Secondary Winding 6 connects and has a secondary inserts 9, described secondary inserts 9 with set The secondary connection bolt 10 put on described pour mass 2 electrically connects, at the end of described iron core 5 Portion is provided with liftable hoisting bracket 11.

It can also be seen that the left and right sides bottom described pour mass 2 is divided from Fig. 1 with Fig. 4 Not being equiped with embedding female 12, this embedding female 12 electrically connects with the earth lead 13 on described iron core 5, Being equiped with fixing screw 14 at this in embedding female 12, described pour mass 2 is by this fixing screw 14 Realize being connected with the fixing of mounting base 3.

In this example, the upper surface at described mounting base 3 is further fixed on earth stud 17, should Earth stud 17 is positioned at the right lateral side of described mounting base 3.

This voltage transformer increases knot by arranging the creep age distance being made up of four strip muscle 4 Structure, adds transformer surface creepage distance, thus stops between two high-field electrodes creepage, The gradation for surface pollution making product improves, and makes product can use in the most dirty environment.

Claims

null1. a voltage transformer with big creep age distance，Including primary connection bolt (1)、Pour mass (2)、Mounting base (3) and winding mechanism，Described primary connection bolt (1) is fixed on described pour mass (2) top，The bottom of described pour mass (2) is fixing with mounting base (3) to be connected，Described winding mechanism is fixed in described pour mass (2) by resin-cast，And electrically connect with primary connection bolt (1) and the secondary connection bolt (10) being positioned on described pour mass (2) respectively，It is characterized in that: described primary connection bolt (1) is constituted with the second binding post (1b) by setting up first binding post (1a) of both sides before and after described pour mass (2) separately，Many strip muscle (4) it are evenly distributed with on pour mass (2) between described first binding post (1a) and the second binding post (1b)，Connecting line between setting direction and the first binding post (1a) and second binding post (1b) of this strip muscle (4) is perpendicular，Many described strip muscle (4) form creep age distance increases structure.
The voltage transformer with big creep age distance the most according to claim 1, it is characterized in that: described winding mechanism includes the first winding, iron core (5) and the second winding (6) being wound on iron core (5), described first winding passes sequentially through primary winding support (7), one time inserts (8) electrically connects with described primary connection bolt (1), a described winding suspension cover is located in Secondary Winding (6), the upper connection of this Secondary Winding (6) has secondary inserts (9), described secondary inserts (9) electrically connects with the secondary connection bolt (10) being arranged on described pour mass (2), the bottom of described iron core (5) is provided with liftable hoisting bracket (11).
The voltage transformer with big creep age distance the most according to claim 2, it is characterized in that: be equiped with embedding mother (12) respectively in the left and right sides of described pour mass (2) bottom, this embedding mother (12) electrically connects with the earth lead (13) on described iron core (5), being equiped with fixing screw (14) in this embedding mother (12), described pour mass (2) realizes fixing connection the with mounting base (3) by this fixing screw (14).
The voltage transformer with big creep age distance the most according to claim 1, it is characterized in that: on the left side wall of described pour mass (2), be fixed with nameplate (15), this nameplate (15) includes the model of transformer, specification, rated transformation ratio, class of accuracy, secondary capacity basic parameter and the installation dimension information of transformer.
The voltage transformer with big creep age distance the most according to claim 1, it is characterised in that: on described mounting base (3), offer four U-shaped mounting grooves (16).