CN111883947A

CN111883947A - Transformer binding post

Info

Publication number: CN111883947A
Application number: CN202010773809.3A
Authority: CN
Inventors: 程力; 赵文
Original assignee: Anhui Goode Information Technology Co ltd
Current assignee: Anhui Goode Information Technology Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2020-11-03

Abstract

The invention relates to the field of transformers, in particular to a transformer wiring terminal, which comprises a wiring seat, a pressurizing mechanism and a locking mechanism, wherein the wiring end surfaces on two sides of the wiring seat are respectively provided with an outer wire groove and an inner wire groove; a pressurizing mechanism for externally connecting the wire holder and an external cable is arranged in the external wire slot; and a locking mechanism for internally connecting the wire holder with the transformer cable is arranged on the inner wire groove. The transformer wiring terminal provided by the invention has the advantages that a plurality of wiring terminals form a wiring terminal block framework, and the wiring bases on the connecting and mounting plate can be properly adjusted and assembled in proper quantity.

Description

Transformer binding post

Technical Field

The invention relates to the field of transformers, in particular to a transformer wiring terminal.

Background

The transformer is a device for changing alternating voltage by using the principle of electromagnetic induction, and the substrate structure of the transformer comprises a transformer housing, and a coil and an iron core which are arranged in the transformer housing, wherein the coil comprises a primary coil, a secondary coil and the iron core (magnetic core), and the main functions of the transformer are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), and the like.

The wiring terminal is an important component of the transformer, wherein, the low-voltage end wiring terminal has low voltage and large current, when the transformer operates, the vibration can be transmitted to the bus through the hard bus bar, so that the bus and the equipment connected with the bus generate vibration and noise, the service life of the bus and the equipment is influenced, the contact is poor or the contact area is too small, when the load is increased, the heat productivity of the wiring terminal is over high, the aging of the wiring terminal and a copper plate is caused, the sealing of an outgoing line terminal of a voltage section of the transformer is damaged, the service life of the transformer is shortened, the number of the wiring terminals arranged on different transformers is different, the existing wiring terminal frame is difficult to carry out proper adjustment and assembly on the wiring terminals, the assembly of the wiring terminals aiming at different transformers is difficult, and the single wiring terminal is difficult to replace after being damaged, and (5) maintaining. Therefore, it is necessary to provide a transformer terminal to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problems, the invention provides a transformer wiring terminal which can be properly adjusted and assembled in proper quantity and can reduce the problem that the connecting ends of cable cores are easy to slip.

The invention provides a transformer connecting terminal, which comprises: the wire holder, the pressurizing mechanism and the locking mechanism, wherein the wire end surfaces at two sides of the wire holder are respectively provided with an outer wire groove and an inner wire groove; a pressurizing mechanism for externally connecting the wire holder and an external cable is arranged in the external wire slot; and a locking mechanism for internally connecting the wire holder with the transformer cable is arranged on the inner wire groove.

Preferably, the loading system includes the dwang, pressfitting frame and buckle, the dwang rotates the installation at the inside of outer wire casing, and install the pressfitting frame of rotating the connection on the dwang, set up on the pressfitting frame and run through the chamber, and the front side fixed mounting of pressfitting frame lower surface has the buckle, the fixed orifices has been seted up on the pressfitting frame, and set up the screw hole that corresponds each other with the fixed orifices in the outside wire casing, the connection terminal is when external with external cable, insert the cable core of cable and establish to the gomphosis inslot and extend to the outer wire casing in, it makes the buckle fix the cable core on the contact piece to rotate down the pressfitting board, utilize the screw to pass the fixed orifices of seting up on the pressfitting frame and fix in the screw hole of seting up in the outside wire casing.

Preferably, the wire holder corresponding to the external wire slot is provided with an embedding slot, and the embedding slot is internally provided with a amplitude reduction mechanism for improving the stability of the cable connecting end, the amplitude reduction mechanism comprises a bearing plate, a sliding rod, a spring, a limit baffle, a sliding rail and a connecting rod, the bottom of the bearing plate is fixedly provided with a plurality of vertically arranged sliding rods, the bottoms of the sliding rods extend into sliding cavities arranged in the embedding slot and are in sliding connection with the sliding cavities, each sliding rod is connected with the spring in series, one end of the spring is fixedly connected with the lower surface of the bearing plate, the other end of the spring is fixedly connected with the bottom wall of the embedding slot, the bearing plate and the pinch plate are arranged corresponding to each other, the bearing plate and the pinch plate are respectively provided with arc cavities matched with each other, the two sides of the bearing plate are rotatably connected with the connecting rod, the other end of the connecting rod is rotatably connected, because the cable is fixed in the back in the overcoat groove, one section meeting gomphosis of cable is at the loading board, the buckle that the cooperation pressfitting got off, accomplish the locking of connecting the cable section, the problem of cable core link slippage has been avoided the cable to appear dragging the in-process, simultaneously when the swing amplitude appears in the cable of connecting, the cable pushes down the loading board and makes the loading board slide along the sliding cavity along with the slide bar, consequently, the spring receives the compression, make the cable amplitude of connection reduce in the overcoat groove, it is not hard up to avoid connecting the cable head to appear, lead to the cable core head to appear gathering heat and impaired problem.

Preferably, the locking mechanism comprises a threaded sleeve and a threaded pressurizing rod, the threaded sleeve is fixedly installed on the wire holder and is communicated with the inner wire groove, the threaded sleeve is inserted with the threaded pressurizing rod in threaded connection, when the wire holder is connected with the cable in the transformer in an inscribed mode, the cable core head of the cable is inserted into the inner wire groove, and the threaded pressurizing rod is rotated to enable the threaded pressurizing rod to fix the cable core head in the inner wire groove and fix the cable core head with the contact sheet.

Preferably, a wire guide for guiding the transformer cable is installed on the wire holder on the front side of the inner wire casing, and the wire guide comprises a wire guide plate and a sliding plate, the wire guide plate is inserted into a sliding groove formed in the wire holder and is in sliding connection with the sliding groove, the other end of the wire guide plate extends out of the sliding groove and is fixedly provided with the sliding plate, the sliding plate is of a tilt-out type structure, the upper surface of the sliding plate is provided with a sliding cavity, and a connecting section of the cable is placed on the sliding plate so as to improve the stability of the cable.

Preferably, a plurality of wire holders with the same specification form a wire connecting terminal block through a connecting piece, the connecting piece comprises a connecting mounting plate, a sliding bulge, an auxiliary bulge and a through cavity, the connecting mounting plate is provided with the sliding bulge and the auxiliary bulge which are distributed in parallel, the connecting mounting plate is provided with a plurality of through cavities, the sliding bulge and the auxiliary bulge which are used for buckling the wire holder on the connecting mounting plate are buckled by a sliding arc groove and an auxiliary arc groove which are arranged at the bottom of the wire holder, the wire holder slides along the sliding bulge and the auxiliary bulge through the sliding arc groove and the auxiliary arc groove, so that the plurality of wire connecting terminals form a wire connecting terminal block framework, the wire holder on the connecting mounting plate can be properly adjusted and assembled by proper amount, the flexibility of the transformer wire connecting terminal is greatly improved, and the wire connecting terminals can be conveniently assembled for different transformers, wherein, the both sides wall of wire holder all is equipped with one section arch for keep one section interval between two wire holders, make the cable of connecting can carry out certain line interval and distinguish, and appear when impaired at single binding post, dismantle it and change a new binding post, thereby whole binding post row still can carry out normal use.

Preferably, the bottom of the wire holder is provided with a sliding arc groove and an auxiliary arc groove, and the sliding arc groove and the auxiliary arc groove provided by the wire holder are respectively inserted into the sliding protrusion and the auxiliary protrusion and horizontally slide along the sliding protrusion and the auxiliary protrusion.

Preferably, install the locating part that is used for locking binding post row on the connecting piece, and the locating part includes spacing guard plate, the sliding sleeve, auxiliary sleeve and clamping screw, the bottom of spacing guard plate is provided with integrated into one piece's sliding sleeve and auxiliary sleeve respectively, and spacing guard plate passes through sliding sleeve and auxiliary sleeve slidable mounting on slip arch and auxiliary arch, the screw through-hole has been seted up to the lateral wall of sliding sleeve, and insert threaded connection's clamping screw in the screw through-hole, after binding post row is constituteed to binding post, insert the spacing guard plate of establishing sliding connection respectively in the both sides of connecting the mounting panel, rotatory clamping screw, make clamping screw fix the sliding sleeve on the slip arch, consequently, the equipment of binding post row is accomplished.

Preferably, install the heat dissipation bar copper that a plurality of set up side by side on the outer wire casing, and seted up a plurality of evenly distributed's louvre on the wire holder of outer wire casing both sides, the heat that the heat dissipation bar copper that the outer wire inslot was established can effectual absorption cable connector department prevents the phenomenon that the contact site of cable connector contact leads to the security performance to reduce because it is excessive to generate heat.

Preferably, the contact pieces are fixedly embedded in the outer wire groove and the inner wire groove, and a flexible aluminum foil piece for communicating and conducting is arranged between the two contact pieces.

Compared with the related art, the transformer wiring terminal provided by the invention has the following beneficial effects:

1. according to the invention, a plurality of wiring terminals form a wiring terminal block framework, and the wiring holders on the connecting and mounting plate can be properly adjusted and assembled in proper number, so that the flexibility of the wiring terminals of the transformer is greatly improved, and the wiring terminals can be conveniently assembled for different transformers;

2. the two side walls of the wire holder are respectively provided with the bulges, so that a section of space is reserved between the two wire holders, a certain line space can be distinguished for a connected cable, and when a single wire connecting terminal is damaged, the wire connecting terminal is detached to replace a new wire connecting terminal, so that the whole wire connecting terminal row can still be normally used;

3. when the wire holder is externally connected with an external cable, one section of the cable can be embedded in the bearing plate after the cable is fixed in the external wire groove, and the locking of the connecting cable section is completed by matching with the pressed buckle plate, so that the problem that the connecting end of a cable core slips in the pulling process of the cable is avoided;

4. when the amplitude of oscillation of the connected cable occurs, the cable presses the bearing plate downwards so that the bearing plate slides downwards along the sliding cavity along with the sliding rod, and therefore the spring is compressed, the amplitude of the cable connected in the outer wire groove is reduced, and the problem that the cable core head is damaged due to heat accumulation caused by looseness of the cable head is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a transformer terminal according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the mounting structure of the wire holder shown in FIG. 1;

FIG. 3 is a schematic structural view of a front end face of the wire holder shown in FIG. 2;

FIG. 4 is an enlarged view of the structure shown at A in FIG. 3;

FIG. 5 is a schematic structural view of a rear end face of the wire holder shown in FIG. 3;

FIG. 6 is a schematic structural view of the connector shown in FIG. 1;

FIG. 7 is a schematic structural diagram of the limiting element shown in FIG. 1;

FIG. 8 is a schematic view of the connection between the position-limiting baffle and the bearing plate shown in FIG. 4.

Reference numbers in the figures: 1. the wire holder, 2, an outer wire groove, 3, a tabling groove, 4, a pressurizing mechanism, 41, a rotating rod, 42, a press frame, 43, a buckle plate, 5, a reducing mechanism, 51, a bearing plate, 52, a sliding rod, 53, a spring, 54, a limit baffle, 55, a sliding rail, 56, a connecting rod, 6, an inner wire groove, 7, a locking mechanism, 71, a threaded sleeve, 72, a threaded pressurizing rod, 8, a wire guide piece, 81, a wire guide plate, 82, a sliding plate, 9, a fixing hole, 9a, a heat dissipation copper rod, 9b, a heat dissipation hole, 9c, a sliding arc groove, 9d, an auxiliary arc groove, 9e, a connecting piece, 91e, a connecting mounting plate, 92e, a sliding protrusion, 93e, an auxiliary protrusion, 94e, a through cavity, 9f, a limiting part, 91f, a limit protection plate, 92f, a sliding sleeve, 93f, an auxiliary sleeve, 94f and a fixing.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Please refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8 in combination, wherein fig. 1 is a schematic structural diagram of a transformer terminal according to a preferred embodiment of the present invention; FIG. 2 is a schematic view of the mounting structure of the wire holder shown in FIG. 1; FIG. 3 is a schematic structural view of a front end face of the wire holder shown in FIG. 2; FIG. 4 is an enlarged view of the structure shown at A in FIG. 3; FIG. 5 is a schematic structural view of a rear end face of the wire holder shown in FIG. 3; FIG. 6 is a schematic structural view of the connector shown in FIG. 1; fig. 7 is a schematic structural diagram of the limiting member shown in fig. 1, and fig. 8 is a schematic connection diagram of the limiting baffle shown in fig. 4 and the bearing plate. The transformer binding post includes: the wire holder comprises a wire holder 1, a pressurizing mechanism 4 and a locking mechanism 7, wherein the wire end faces at two sides of the wire holder 1 are respectively provided with an outer wire groove 2 and an inner wire groove 6, contact pieces are fixedly embedded in the outer wire groove 2 and the inner wire groove 6, a flexible aluminum foil piece for communicating and conducting is arranged between the two contact pieces, and the pressurizing mechanism 4 for externally connecting the wire holder 1 and an external cable is arranged in the outer wire groove 2; a locking mechanism 7 for inscribing the wire holder 1 with the transformer cable is mounted on the inner raceway 6.

In the specific implementation process, as shown in fig. 1, 3 and 4, the pressurizing mechanism 4 includes a rotating rod 41, a pressing frame 42 and a fastening plate 43, the rotating rod 41 is rotatably installed in the external wire slot 2, the rotating rod 41 is installed with the pressing frame 42 which is rotatably connected, a through cavity is formed on the pressing frame 42, the fastening plate 43 is fixedly installed on the front side of the lower surface of the pressing frame 42, the fixing hole 9 is formed on the pressing frame 42, a threaded hole corresponding to the fixing hole 9 is formed in the external wire slot 2, an embedding groove 3 is formed in the wire holder 1 corresponding to the external wire slot 2, an amplitude reducing mechanism 5 for improving the stability of the cable connection end is installed in the embedding groove 3, the amplitude reducing mechanism 5 includes a bearing plate 51, a sliding rod 52, a spring 53, a limit baffle 54, a sliding rail 55 and a connecting rod 56, a plurality of sliding rods 52 which are vertically arranged are fixedly installed at the bottom of the bearing plate 51, and the bottom of the sliding rods 52 extends into the sliding cavity formed in the embedding groove 3 and is, each sliding rod 52 is connected in series with a spring 53, one end of each spring 53 is fixedly connected with the lower surface of the bearing plate 51, the other end of each spring 53 is fixedly connected with the bottom wall of the embedding groove 3, the bearing plate 51 and the buckle plate 43 are arranged correspondingly, arc-shaped cavities matched with each other are respectively formed in the bearing plate 51 and the buckle plate 43, the connecting rods 56 are rotatably connected to two sides of the bearing plate 51, the other ends of the connecting rods 56 are rotatably connected with the limiting baffles 54, and the limiting baffles 54 are slidably connected with the sliding rails 55 arranged on the wire holder.

It should be noted that: when the wire holder 1 is externally connected with an external cable, a cable core of the cable is inserted into the embedding groove 3 and extends into the external wire groove 2, the buckling plate 43 is rotated to press the buckling plate 43 to fix the cable core on the contact sheet, a screw is used for penetrating through the fixing hole 9 formed in the pressing frame 42 and fixing the buckling hole formed in the external wire groove 2, so that the wire holder 1 is fixed with the external cable, after the cable is fixed in the external wire groove 2, one end of the cable can be embedded in the bearing plate 51 and matched with the buckling plate 43 pressed down to complete the locking of a connecting cable section, the problem that the cable core connecting end slips in the pulling process of the cable is avoided, meanwhile, when the amplitude of swing of the connected cable occurs, the bearing plate 51 is pressed down by the cable, the bearing plate 51 slides down along with the sliding rod 52, so that the spring 53 is compressed, and meanwhile, the bearing plate 51 can pull the connecting rod 56, two limit baffle 54 of connecting rod 56 pulling are drawn close to the centre to with the cable parcel, make the cable connector department amplitude of connecting in the outer wire casing 2 reduce, avoid connecting cable head to appear becoming flexible, lead to the cable core head to appear gathering heat and impaired problem.

Wherein, install the heat dissipation bar copper 9a that a plurality of roots set up side by side on the outer wire groove 2, seted up a plurality of evenly distributed's louvre 9b on the wire holder 1 of outer wire groove 2 both sides, the heat that the heat dissipation bar copper 9a that establishes in the outer wire groove 2 can effectual absorption cable connector department prevents the phenomenon that the contact site of cable connector contact leads to the security performance to reduce because of generating heat excessively.

Referring to fig. 3 and 5, the locking mechanism 7 includes a threaded sleeve 71 and a threaded pressure rod 72, the threaded sleeve 71 is fixedly installed on the wire holder 1, and the threaded sleeve 71 and the inner wire slot 6 are communicated with each other, the threaded pressure rod 72 having a threaded connection is inserted into the threaded sleeve 71, and a wire guide 8 for guiding a transformer cable is installed on the wire holder 1 in front of the inner wire slot 6, and the wire guide 8 includes a wire guide plate 81 and a sliding plate 82, the wire guide plate 81 is inserted into and slidably connected with a sliding groove formed in the wire holder 1, and the other end of the wire guide plate 81 extends out of the sliding groove and is fixedly installed with the sliding plate 82, the sliding plate 82 has an outwardly inclined structure, and a sliding cavity is formed on an upper surface of the sliding plate 82.

It should be noted that: when the wire holder 1 is internally connected with a cable in a transformer, a cable core head of the cable is inserted into the inner wire groove 6, the thread pressurizing rod 72 is rotated to enable the thread pressurizing rod 72 to fix the cable core head in the inner wire groove 6 and fix the cable core head with the contact, and a connecting section of the cable is placed on the sliding plate 82 so as to improve the stability of the cable.

In the process of implementing the terminal block assembly of the terminal block, referring to fig. 2 and 6, a plurality of terminal blocks 1 with the same specification form a terminal block through a connecting piece 9e, the connecting piece 9e comprises a connecting mounting plate 91e, a sliding protrusion 92e, an auxiliary protrusion 93e and a through cavity 94e, the connecting mounting plate 91e is provided with a sliding protrusion 92e and an auxiliary protrusion 93e, the sliding protrusion 92e and the auxiliary protrusion 93e are distributed in parallel, the connecting mounting plate 91e is provided with a plurality of through cavities 94e, the bottom of the terminal block 1 is provided with a sliding arc groove 9c and an auxiliary arc groove 9d, and the sliding arc groove 9c and the auxiliary arc groove 9d provided on the terminal block 1 are respectively inserted into the sliding protrusion 92e and the auxiliary protrusion 93e and horizontally slide along the sliding protrusion 92e and the auxiliary protrusion 93 e; the sliding arc groove 9c and the auxiliary arc groove 9d which are arranged at the bottom of the wire holder 1 are beneficial to buckling the wire holder 1 on the sliding bulge 92e and the auxiliary bulge 93e of the connecting installation plate 91e, the wire holder 1 slides along the sliding bulge 92e and the auxiliary bulge 93e through the sliding arc groove 9c and the auxiliary arc groove 9d, so that a plurality of wire connecting terminals form a wire connecting terminal row framework, the wire holder 1 on the connecting installation plate 91e can be properly adjusted and assembled in proper quantity, therefore, the flexibility of the transformer wire connecting terminals is greatly improved, the wire connecting terminals can be assembled aiming at different transformers, wherein, two sections of bulges are arranged on two side walls of the wire holder 1, a section of space is reserved between the two wire holders 1, a certain wire space can be distinguished for connecting cables, and when a single wire connecting terminal is damaged, the wire holder is disassembled to replace a new wire connecting terminal, so that the entire terminal block can still be used normally.

In the process of limiting the terminal block, referring to fig. 1 and 7, a limiting piece 9f for locking the terminal block is mounted on the connecting piece 9e, the limiting piece 9f includes a limiting protection plate 91f, a sliding sleeve 92f, an auxiliary sleeve 93f and a fixing screw 94f, the bottom of the limiting protection plate 91f is provided with the sliding sleeve 92f and the auxiliary sleeve 93f which are integrally formed, the limiting protection plate 91f is slidably mounted on the sliding protrusion 92e and the auxiliary protrusion 93e through the sliding sleeve 92f and the auxiliary sleeve 93f, the side wall of the sliding sleeve 92f is provided with a threaded through hole, and the fixing screw 94f is inserted into the threaded through hole and connected with the threaded through hole; after the wiring terminal block is formed by the wiring terminals, the limit protection plates 91f which are connected in a sliding manner are respectively inserted into two sides of the connection mounting plate 91e, and the fixing screw 94f is rotated, so that the fixing screw 94f fixes the sliding sleeve 92f on the sliding protrusion 92e, and therefore, the assembly of the wiring terminal block is completed.

The working principle of the transformer wiring terminal provided by the invention is as follows:

the wire holder 1 is buckled on the sliding protrusion 92e and the auxiliary protrusion 93e on the connecting and mounting plate 91e through the sliding arc groove 9c and the auxiliary arc groove 9d arranged at the bottom of the wire holder 1, the wire holder 1 slides along the sliding protrusion 92e and the auxiliary protrusion 93e through the sliding arc groove 9c and the auxiliary arc groove 9d, so that a plurality of wire terminals form a wire terminal strip framework, the wire holder 1 on the connecting and mounting plate 91e can be properly adjusted and assembled in proper quantity, therefore, the flexibility of the transformer wire terminals is greatly improved, the wire terminals can be assembled aiming at different transformers, wherein, two side walls of the wire holder 1 are respectively provided with a section of protrusion, a section of space is reserved between the two wire holders 1, so that connected cables can be distinguished by a certain wire space, and when a single wire terminal is damaged, the wiring terminal block is disassembled to replace a new wiring terminal, so that the whole wiring terminal block can still be normally used, after the wiring terminal block is formed by the wiring terminals, limit protection plates 91f which are connected in a sliding mode are respectively inserted into two sides of a connecting installation plate 91e, a fixing screw 94f is rotated, so that the fixing screw 94f fixes a sliding sleeve 92f on a sliding protrusion 92e, and therefore the assembling of the wiring terminal block is completed, wherein the connecting installation plate 91e is installed in an installation area of a transformer through screws, when the wiring base 1 is externally connected with an external cable, a cable core of the cable is inserted into an embedding groove 3 and extends into an external wire groove 2, a lower pressing plate 43 is rotated to enable the pressing plate 43 to fix the cable core on a contact piece, the screws penetrate through fixing holes 9 formed in an embedding frame 42 and are fixed in threaded holes formed in the external wire groove 2, and therefore the fixing of the wiring base 1 and the external, because one section of the cable is embedded in the bearing plate 51 and matched with the pinch plate 43 pressed down after the cable is fixed in the outer wire casing 2, the locking of the connecting cable section is completed, the problem that the connecting end of the cable core slips in the pulling process of the cable is avoided, meanwhile, when the amplitude of the connected cable swings, the cable presses the bearing plate 51 downwards, so that the bearing plate 51 slides downwards along the sliding cavity along with the sliding rod 52, therefore, the spring 53 is compressed, so that the amplitude of the cable connected in the outer wire groove 2 is reduced, the problem that the cable core head is damaged due to heat accumulation caused by the looseness of the cable head is avoided, when the wire holder 1 is internally connected with the cable in the transformer, the cable core head of the cable is inserted into the internal wire groove 6, rotating the screw pressurizing rod 72 makes the screw pressurizing rod 72 fix the cable core head in the inner wire groove 6 and with the contact piece, and the connecting section of the cable is placed on the sliding plate 82 to improve the stability of the cable.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A transformer terminal, comprising: the wire holder (1), the pressurizing mechanism (4) and the locking mechanism (7), wherein the wiring end surfaces on two sides of the wire holder (1) are respectively provided with an outer wire groove (2) and an inner wire groove (6); the pressurizing mechanism (4) used for connecting the wire holder (1) with an external cable is arranged in the external wire groove (2); the locking mechanism (7) used for internally connecting the wire holder (1) with the transformer cable is arranged on the inner wire groove (6).

2. The transformer wiring terminal according to claim 1, wherein the pressurizing mechanism (4) comprises a rotating rod (41), a pressing frame (42) and a buckle plate (43), the rotating rod (41) is rotatably installed in the outer wire casing (2), the pressing frame (42) which is rotatably connected is installed on the rotating rod (41), a through cavity is formed in the pressing frame (42), the buckle plate (43) is fixedly installed on the front side of the lower surface of the pressing frame (42), a fixing hole (9) is formed in the pressing frame (42), and a threaded hole which corresponds to the fixing hole (9) is formed in the outer wire casing (2).

3. The transformer connecting terminal according to claim 2, wherein a fitting groove (3) is formed in the wire holder (1) corresponding to the outer wire groove (2), and a amplitude reduction mechanism (5) for improving the stability of the cable connecting end is installed in the fitting groove (3), the amplitude reduction mechanism (5) comprises a bearing plate (51), sliding rods (52), a spring (53), a limit baffle (54), a sliding rail (55) and a connecting rod (56), wherein a plurality of vertically arranged sliding rods (52) are fixedly installed at the bottom of the bearing plate (51), the bottom of each sliding rod (52) extends into a sliding cavity formed in the fitting groove (3) and is in sliding connection with the sliding cavity, the spring (53) is connected in series to each sliding rod (52), one end of the spring (53) is fixedly connected with the lower surface of the bearing plate (51), and the other end of the spring (53) is fixedly connected with the bottom wall of the fitting groove (3), the utility model discloses a wire holder, including bearing plate (51), connecting rod (56), limit baffle (54) sliding connection establish on the connection terminal slide rail (55), bearing plate (51) and buckle (43) correspond the setting each other, and set up the arc chamber that matches each other on bearing plate (51) and buckle (43) respectively, the both sides of bearing plate (51) are rotated and are connected with connecting rod (56), the other end of connecting rod (56) is rotated and is connected limit baffle (54).

4. The transformer connection terminal according to claim 1, wherein the locking mechanism (7) comprises a threaded sleeve (71) and a threaded pressure rod (72), the threaded sleeve (71) is fixedly installed on the connection base (1), the threaded sleeve (71) is communicated with the inner wire groove (6), and the threaded pressure rod (72) in threaded connection is inserted on the threaded sleeve (71).

5. The transformer wiring terminal according to claim 4, wherein a wire guide (8) for guiding a transformer cable is installed on the wire holder (1) in front of the inner wire casing (6), the wire guide (8) comprises a wire guide plate (81) and a sliding plate (82), the wire guide plate (81) is inserted into a sliding groove formed in the wire holder (1) and is slidably connected with the sliding groove, the other end of the wire guide plate (81) extends out of the sliding groove and is fixedly provided with the sliding plate (82), the sliding plate (82) is of an outward-inclining type structure, and a sliding cavity is formed in the upper surface of the sliding plate (82).

6. The transformer wiring terminal according to claim 1, wherein a plurality of wiring bases (1) with the same specification form a wiring terminal row through a connecting piece (9e), the connecting piece (9e) comprises a connecting mounting plate (91e), a sliding protrusion (92e), an auxiliary protrusion (93e) and a through cavity (94e), the connecting mounting plate (91e) is provided with the sliding protrusion (92e) and the auxiliary protrusion (93e), the sliding protrusion (92e) and the auxiliary protrusion (93e) are distributed in parallel, and the connecting mounting plate (91e) is provided with a plurality of through cavities (94 e).

7. The transformer wiring terminal according to claim 6, wherein the bottom of the wire holder (1) is provided with a sliding arc groove (9c) and an auxiliary arc groove (9d), and the sliding arc groove (9c) and the auxiliary arc groove (9d) provided on the wire holder (1) are respectively inserted into the sliding protrusion (92e) and the auxiliary protrusion (93e) and horizontally slide along the sliding protrusion (92e) and the auxiliary protrusion (93 e).

8. The transformer wiring terminal according to claim 6, wherein the connecting piece (9e) is provided with a limiting piece (9f) for locking the wiring terminal row, the limiting piece (9f) comprises a limiting protection plate (91f), a sliding sleeve (92f), an auxiliary sleeve (93f) and a fixing screw (94f), the bottom of the limiting protection plate (91f) is provided with the sliding sleeve (92f) and the auxiliary sleeve (93f) which are integrally formed, the limiting protection plate (91f) is slidably mounted on the sliding protrusion (92e) and the auxiliary protrusion (93e) through the sliding sleeve (92f) and the auxiliary sleeve (93f), the side wall of the sliding sleeve (92f) is provided with a threaded through hole, and the fixing screw (94f) is inserted into the threaded through hole and connected with a thread.

9. The transformer wiring terminal according to claim 1, wherein a plurality of heat dissipation copper bars (9a) arranged side by side are installed on the outer wire slot (2), and a plurality of heat dissipation holes (9b) distributed uniformly are formed on the wiring holder (1) at two sides of the outer wire slot (2).

10. The transformer wiring terminal according to claim 1, wherein a contact piece is fixedly embedded in each of the outer wire groove (2) and the inner wire groove (6), and a flexible aluminum foil piece for communicating and conducting electricity is installed between the two contact pieces.