CN206432118U - A kind of transformer low voltage is cold-pressed coupling arrangement - Google Patents

Abstract

Coupling arrangement is cold-pressed the utility model discloses a kind of transformer low voltage, including low pressure winding, cold pressing connection line terminals and winding lead-out wire, the input of the winding lead-out wire is wound with low pressure to be electrically connected with, the output end of the winding lead-out wire is electrically connected with connecting plate, the end of the connecting plate is provided with guiding groove, the guiding groove is set in the shape of a spiral, and the end of guiding groove is arranged on the center of guiding groove, the cold pressing connection line terminals include low-voltage bus bar and contiguous block, the low-voltage bus bar is connected line terminals with cold pressing by contiguous block and is electrically connected with, electric conductor is provided with the contiguous block, the side of the electric conductor correspondence connecting plate is provided with conductive hook, and conductive hook with guiding groove is corresponding contacts connection, the top of the contiguous block correspondence electric conductor is provided with pressing plate by expansion link.Transformer cold pressing low pressure connection technique, install convenient, stability is high during use, is easy to the C＆M in transformer later stage.

Description

A kind of transformer low voltage is cold-pressed coupling arrangement

Technical field

The utility model is related to transformer technology field, more particularly to a kind of transformer low voltage cold pressing coupling arrangement.

Background technology

At present, existing transformer low voltage winding and bus connection structure, are welded in the way of gas welding, and its structure is Winding leading-out wire is directly welded on low-voltage bus bar；This kind of draw bail has the drawback that：Not prison welding is leaned on, and has rosin joint to show As occurring, loose contact is caused；Need to expend considerable time and effort before and after gas welding process and do place, the protection and welding of product The work such as head subsequent treatment (the predominantly cleaning of carbide and welding slag), therefore pollution is constituted to work-yard and transformer；Pole Small part is socketed using between cold pressing connection line terminals and low pressure winding by connector, it is impossible to ensure the stabilization connected between it Property, it can over time release in the course of time, influence it to use.

Utility model content

The shortcomings of the purpose of this utility model is to solve to install present in prior art and repair inconvenient, and carry A kind of transformer low voltage cold pressing coupling arrangement gone out.

To achieve these goals, the utility model employs following technical scheme：

A kind of transformer low voltage is cold-pressed coupling arrangement, including low pressure winding, cold pressing connection line terminals and winding lead-out wire, institute The input and low pressure for stating winding lead-out wire wind electric connection, and the output end of the winding lead-out wire is electrically connected with connection Plate, the end of the connecting plate is provided with guiding groove, and the guiding groove is set in the shape of a spiral, and the end of guiding groove is arranged on and drawn The center of guide groove, cold pressing connection line terminals include low-voltage bus bar and contiguous block, the low-voltage bus bar by contiguous block with it is cold Pressure connection line terminals are electrically connected with, and electric conductor is provided with the contiguous block, and the side of the electric conductor correspondence connecting plate is set There is a conductive hook, and conductive hook and guiding groove are corresponding contacts connection, the top of the contiguous block correspondence electric conductor passes through flexible Bar is provided with pressing plate.

Preferably, the connecting plate is fixedly connected with winding lead-out wire, and connecting plate connects in shape is surrounded with winding lead-out wire Connect.

Preferably, the inside diameter of the guiding groove is slightly larger than the diameter of conductive hook.

Preferably, the top of the conductive hook is slightly above at the top of electric conductor, and pressing plate correspondence conductive hook and set It is fluted.

In the utility model, low pressure winding is connected the winding that line terminals are linked into by conductive hook on low pressure winding with cold pressing In the guiding groove on connecting plate that lead-out wire is connected, and go deep into the inside of guiding groove, spiral helicine guiding groove, which is prevented effectively from, leads Pressing plate on the removal of cable address hook, contiguous block fixes the top of conductive hook, improves low pressure winding and is connected line terminals with cold pressing Between the stability that connects, transformer cold pressing low pressure connection technique, install convenient, stability is high during use, is easy to become The C＆M in depressor later stage.

Brief description of the drawings

Fig. 1 be the utility model proposes a kind of transformer low voltage be cold-pressed coupling arrangement structural representation；

Fig. 2 be the utility model proposes a kind of transformer low voltage cold pressing coupling arrangement cold pressing connecting line terminals side regard Figure.

In figure：1 low pressure winding, 2 cold pressing connection line terminals, 21 low-voltage bus bars, 22 contiguous blocks, 221 electric conductors, 222 conductions Hook, 23 pressing plates, 231 expansion links, 232 grooves, 3 winding lead-out wires, 31 connecting plates, 32 guiding grooves.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.

A kind of reference picture 1-2, transformer low voltage is cold-pressed coupling arrangement, including low pressure winding 1, cold pressing connection line terminals 2 and Lead-out wire 3 is wound, the input and low pressure winding 1 for winding lead-out wire 3 are electrically connected with, and the output end of winding lead-out wire 3 electrically connects Connecting plate 31 is connected to, connecting plate 31 is fixedly connected with winding lead-out wire 3, and connecting plate 31 connects in shape is surrounded with winding lead-out wire 3 Connect, improve the area that connecting plate 31 is contacted with winding lead-out wire 3, so as to ensure to contact between connecting plate 31 and winding lead-out wire 3 Effect, the end of connecting plate 31 is provided with guiding groove 32, and guiding groove 32 is set in the shape of a spiral, and the end of guiding groove 32 is arranged on The center of guiding groove 32, cold pressing connection line terminals 2 include low-voltage bus bar 21 and contiguous block 22, and low-voltage bus bar 21 passes through contiguous block 22 Line terminals 2 are connected with cold pressing to be electrically connected with, and electric conductor 221, the side of the correspondence connecting plate 31 of electric conductor 221 are provided with contiguous block 22 While conductive hook 222 is provided with, and conductive hook 222 contacts the inside diameter for connecting the guiding groove 32 with the correspondence of guiding groove 32 Slightly larger than the diameter of conductive hook 222, conductive hook 222 is easily entered in guiding groove 32, be difficult to remove out of guiding groove 32, even The top for connecing the correspondence electric conductor 221 of block 22 is provided with pressing plate 23 by expansion link 231, and the top of conductive hook 222, which is slightly above, leads Fluted 232 are set at the top of electric body 221, and the correspondence conductive hook 222 of pressing plate 23, by groove 232 by conductive hook 222 The fixation of end, is prevented effectively from the possibility of the abjection out of guiding groove 32 of conductive hook 222, improves conductive hook 222 with being connected The stability that plate 31 is connected.

In the utility model, low pressure winding 1 is connected line terminals 2 with cold pressing and is linked into by conductive hook 222 on low pressure winding 1 The connecting plate 31 that is connected of winding lead-out wire 3 on guiding groove 32 in, and go deep into the inside of guiding groove 32, spiral helicine guiding The pressing plate 23 that groove 32 is prevented effectively from the removal of conductive hook 222, contiguous block 22 fixes the top of conductive hook 222, improves The stability connected between low pressure winding 1 and cold pressing connection line terminals 2.

It is described above, only the utility model preferably embodiment, but protection domain of the present utility model is not This is confined to, any one skilled in the art is in the technical scope that the utility model is disclosed, according to this practicality New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model Within enclosing.

Claims (4)

1. a kind of transformer low voltage is cold-pressed coupling arrangement, including low pressure winding (1), cold pressing connection line terminals (2) and winding are drawn Line (3), it is characterised in that the input of the winding lead-out wire (3) is electrically connected with low pressure winding (1), the winding is drawn The output end of line (3) is electrically connected with connecting plate (31), and the end of the connecting plate (31) is provided with guiding groove (32), described to draw Guide groove (32) is set in the shape of a spiral, and the end of guiding groove (32) is arranged on the centers of guiding groove (32), the cold pressing connecting line Terminal (2) includes low-voltage bus bar (21) and contiguous block (22), and the low-voltage bus bar (21) is connected by contiguous block (22) with cold pressing Line terminals (2) are electrically connected with, and electric conductor (221), electric conductor (221) the correspondence connecting plate are provided with the contiguous block (22) (31) side is provided with conductive hook (222), and conductive hook (222) contacts connection, the company with guiding groove (32) correspondence The top for connecing block (22) correspondence electric conductor (221) is provided with pressing plate (23) by expansion link (231).

2. a kind of transformer low voltage cold pressing coupling arrangement according to claim 1, it is characterised in that the connecting plate (31) It is fixedly connected with winding lead-out wire (3), and connecting plate (31) is connected in shape is surrounded with winding lead-out wire (3).

3. a kind of transformer low voltage cold pressing coupling arrangement according to claim 1, it is characterised in that the guiding groove (32) Inside diameter be slightly larger than conductive hook (222) diameter.

4. a kind of transformer low voltage cold pressing coupling arrangement according to claim 1, it is characterised in that the conductive hook (222) top is slightly above the top of electric conductor (221), and pressing plate (23) correspondence conductive hook (222) place sets fluted (232)。