Three-phase copper bar wiring structure

Abstract

The utility model discloses a three-phase copper bar wiring structure, which comprises a three-phase wiring bar, three-phase copper bars and three-phase pins which are sequentially connected, the three-phase wiring bar comprises a U-phase wiring bar, a V-phase wiring bar and a W-phase wiring bar which are longitudinally arranged respectively, and the three-phase copper bars comprise a plurality of U-phase copper bars, a plurality of V-phase copper bars and a plurality of W-phase copper bars which are horizontally arranged respectively. And the three-phase pins comprise a plurality of U-phase pins, a plurality of V-phase pins and a plurality of W-phase pins which are respectively and vertically arranged upwards. A three-phase wiring bar, a three-phase copper bar and a three-phase pin are connected in sequence, and according to the manufacturing process of the three-phase copper bar wiring structure, a copper enameled wire is machined and bent through a spring machine to form a plurality of U-phase copper bars, V-phase copper bars and W-phase copper bars in required shapes; a special mold is not needed, so that the manufacturing cost is reduced; and the method can be used for small-batch and single-piece production, the copper material loss is reduced, and the raw material cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit board wiring technical field, mainly relates to a three -phase copper bar wiring structure. BACKGROUND

[0002] The circuit board (PCB board) of electric automobile generally uses three -phase electricity, and the circuit board of traditional electric automobile generally adopts plastic copper wire (namely ordinary wire) and is connected with the circuit board, according to the common sense, the loosening force between copper plastic wire and the circuit board depends on the welding strength of the connecting place of both, and along with the long -term vibration and corrosion of copper plastic wire, the welding strength of the connecting place of copper plastic wire and the circuit board also gradually attenuates, thereby the phenomenon of circuit board contact failure is easy to occur. Therefore, in order to improve the welding strength between both, thereby avoiding the phenomenon of contact failure, three copper bars are welded with the circuit board in the industry respectively, three copper bars are connected with one of three -phase electricity respectively, that is, three copper plastic wires are replaced by three copper bars. And, the pin of copper bar is welded with the circuit board by wave crest welding technology when welding, in addition, the magnetic concentrator also needs to be welded with the PCB board, thereby forming a wiring end connected with the circuit board.

[0003] The three -phase copper bar wiring structure on the market is mostly molded by stamping and then injection molded, and stamping is a commonly used processing technology, which uses a die to exert force on the metal sheet on the press machine to make the metal sheet plastically deform or separate, so that the required shaped parts are obtained. But this process of stamping is very dependent on specially designed dies, and the manufacturing precision of these dies is high, the design and production cycle is relatively long, and the cost is high, which makes stamping not suitable for small batch or single piece production. After the copper material is stamped and the copper bar is unfolded, a lot of copper material is lost. Argon arc welding is usually used for copper bar welding, but the heat affected zone of argon arc welding is large, and the workpiece may be deformed, have too high hardness, have sand holes and other defects after repair. UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the utility model provides a three -phase copper bar wiring structure, which solves the technical problems of three -phase wiring row, three -phase copper bar and three -phase pin connection, and a plurality of three -phase copper bars and a plurality of three -phase pins can be set according to the number of wiring.

[0005] The technical problems solved by the utility model can be solved by the following technical solutions:

[0006] The utility model provides a three -phase copper bar wiring structure, including three -phase wiring row, three -phase copper bar, three -phase pin that connect in turn, its characterized in be that three -phase wiring row includes the U-phase wiring row, V-phase wiring row, W-phase wiring row that set up longitudinally respectively, three -phase copper bar includes the U-phase copper bar, V-phase copper bar, W-phase copper bar of horizontal arrangement respectively, three -phase pin includes the U-phase pin, V-phase pin, W-phase pin of vertical upward arrangement respectively,

[0007] One end of the U-phase copper bar is connected to the U-phase wiring row, and the other end of the U-phase copper bar is connected to the U-phase pin; one end of the V-phase copper bar is connected to the V-phase wiring row, and the other end of the V-phase copper bar is connected to the V-phase pin; one end of the W-phase copper bar is connected to the W-phase wiring row, and the other end of the W-phase copper bar is connected to the W-phase pin.

[0008] In a preferred embodiment of the utility model, the three -phase copper bar wiring structure still includes the wiring seat of head -tail closure, one side of wiring seat is longitudinally provided with a plurality of insertion holes, and the inner wall of wiring seat is transversely provided with a plurality of guide holes;The connecting part of three -phase copper bar vertically passes through the insertion hole, and the three -phase copper bar end of three -phase pin transversely passes through the guide hole.

[0009] In a preferred embodiment of the utility model, the whole of wiring seat is circular ring type, and the three -phase copper bar is arranged in the inside of wiring seat respectively;The U-phase copper bar, V-phase copper bar, W-phase copper bar respectively include 3, wherein 1 U-phase copper bar, V-phase copper bar, W-phase copper bar are radially arranged in the shape of U, and the other 2 U-phase copper bar, V-phase copper bar, W-phase copper bar are arranged in the shape of circular arc.

[0010] In a preferred embodiment of the utility model, the middle part of wiring seat is longitudinally provided with a plurality of grabbing holes, and the top and bottom of wiring seat are longitudinally provided with a plurality of lightening grooves respectively.

[0011] In a preferred embodiment of the utility model, each three -phase wiring row includes crimping head, wiring rod respectively, the cross section of crimping head is the shape of mouth, and the crimping surface of crimping head front side is the shape of Z;The longitudinal section of wiring rod is the shape of inverted L, and the top end of wiring rod is provided with wiring hole.

[0012] In a preferred embodiment of the utility model, the inside of wiring seat is further provided with connecting copper bar, one end of connecting copper bar is connected with one of U-phase copper bar, and the other end is connected with one of W-phase copper bar.

[0013] In an optimal embodiment of the utility model, a plurality of auxiliary copper bars are arranged between the three-phase copper bar and the three-phase pin, and the plurality of auxiliary copper bars are arranged in the terminal seat in turn with the head and tail staggered; a plurality of auxiliary copper inserts are arranged between the plurality of auxiliary copper bars, and the plurality of auxiliary copper inserts are arranged in the terminal seat in the form of a ring array.

[0014] In an optimal embodiment of the utility model, the auxiliary copper bars are arranged in turn with the head and tail staggered, and there are eight auxiliary copper bars; each auxiliary copper bar is in the shape of S; and the auxiliary copper inserts are arranged in the shape of claw.

[0015] Compared with the prior art, the utility model has the beneficial effects that: a three-phase copper bar wiring structure is provided, three-phase wiring bars, three-phase copper bars and three-phase pins are connected in turn, a plurality of three-phase copper bars and a plurality of three-phase pins can be arranged according to the wiring quantity required, the manufacturing process of the three-phase copper bar wiring structure, copper enameled wires are bent by a spring machine and are formed into a plurality of U-phase copper bars, V-phase copper bars and W-phase copper bars in the required shape; no special mold is required, the design and manufacturing period required for mold opening is reduced, and the manufacturing cost is reduced; and the three-phase copper bar wiring structure can be used for small-batch and single-piece production, copper material loss is reduced, and the cost of raw materials is saved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structure schematic view of the three-phase copper bar wiring structure of the utility model.

[0017] Figure 2 is one of the structure schematic views of the utility model after the terminal seat is removed.

[0018] Figure 3 is the second structure schematic view of the utility model after the terminal seat is removed.

[0019] Figure 4 is the structure explosion view of the three-phase copper bar of the utility model.

[0020] REFERENCE NUMERALS

[0021] 11 U-phase wiring bar, 12 V-phase wiring bar, 13 W-phase wiring bar; 14 pressure connector, 15 wiring rod.

[0022] 21 U-phase copper bar, 22 V-phase copper bar, 23 W-phase copper bar. 24 U-phase pin, 25 V-phase pin, 26 W-phase pin.

[0023] 30 terminal seat: 31 plug-in hole, 32 guide hole; 33 grabbing hole, 34 weight-reducing groove. 42 auxiliary copper bar, 43 auxiliary copper insert. DETAILED DESCRIPTION

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0025] See Figures 1 to 4 The figure shows a three-phase copper busbar wiring structure, including a three-phase terminal block, a three-phase copper busbar, and three-phase pins connected in sequence. The three-phase terminal block includes a U-phase terminal block 11, a V-phase terminal block 12, and a W-phase terminal block 13 arranged vertically. The three-phase copper busbar includes several U-phase copper busbars 21, several V-phase copper busbars 22, and several W-phase copper busbars 23 arranged horizontally. The three-phase pins include several U-phase pins 24, several V-phase pins 25, and several W-phase pins 26 arranged vertically upwards.

[0026] One end of several U-phase copper busbars 21 is connected to a U-phase terminal block 11, and the other end of several U-phase copper busbars 21 is connected to several U-phase pins 24; one end of several V-phase copper busbars 22 is connected to a V-phase terminal block 12, and the other end of several V-phase copper busbars 22 is connected to several V-phase pins 25; one end of several W-phase copper busbars 23 is connected to a W-phase terminal block 13, and the other end of several W-phase copper busbars 23 is connected to several W-phase pins 26.

[0027] The three-phase terminal block, three-phase copper busbar, and three-phase pins of this utility model are connected in sequence. Several three-phase copper busbars and several three-phase pins can be set according to the number of connections required. The manufacturing process of the three-phase copper busbar connection structure involves bending the copper enameled wire through a spring machine to form several U-phase copper busbars 21, V-phase copper busbars 22, and W-phase copper busbars 23 of the required shape. No special mold is required, which reduces the design and manufacturing cycle required for mold opening and reduces the manufacturing cost. It can also be used for small-batch and single-piece production, reducing the copper material loss and saving raw material costs.

[0028] In addition, the three-phase pins (U, V, W connection leads) are ultrasonically welded to the three-phase copper busbar. Compared with argon arc welding, ultrasonic welding has more precise connections, better welding quality, less residual stress, and higher aesthetics. It is also environmentally friendly, smokeless and spatter-free, and has low energy consumption, making it suitable for mass production.

[0029] In this preferred embodiment, see Figure 1 The three-phase copper busbar wiring structure also includes a terminal block 30 with closed ends. Several plug holes 31 are arranged longitudinally on one side of the terminal block 30, and several guide holes 32 are arranged transversely on the inner wall of the terminal block 30. The connecting part of the three-phase copper busbar passes vertically through the plug holes 31, and the three-phase copper busbar end of the three-phase pin passes transversely through the guide holes 32.

[0030] Furthermore, the terminal block 30 has several gripping holes 33 arranged longitudinally in the middle, and several weight-reducing grooves 34 arranged longitudinally at the top and bottom of the terminal block 30.

[0031] The above terminal block 30 is equipped with several three-phase copper busbars with different bending shapes. The inlet and outlet ends are inserted through the plug hole 31 and the guide hole 32 respectively, which ensures accurate installation and positioning and facilitates stable wiring of the circuit board. The gripping hole 33 and the weight reduction groove 34 on the terminal block 30 reduce the cost of materials and lighten the overall weight of the three-phase copper busbar wiring structure.

[0032] In this preferred embodiment, combined with Figures 2-4 The terminal block 30 is circular in shape, and the three-phase copper busbars are arranged inside the terminal block 30. There are three U-phase copper busbars 21, V-phase copper busbars 22, and W-phase copper busbars 23. One U-phase copper busbar 21, V-phase copper busbar 22, and W-phase copper busbar 23 are arranged in a radial U-shape, while the other two U-phase copper busbars 21, V-phase copper busbars 22, and W-phase copper busbars 23 are arranged in an arc shape, i.e., an unclosed ring.

[0033] The quantity and bending shape of the above-mentioned U-phase copper busbar 21, V-phase copper busbar 22, and W-phase copper busbar 23 can be arranged according to specific wiring requirements.

[0034] In this preferred embodiment, each three-phase terminal block includes a crimp connector 14 and a terminal rod 15. The cross-section of the crimp connector 14 is U-shaped, and the crimping surface on the front side of the crimp connector 14 is Z-shaped. The longitudinal section of the terminal rod 15 is inverted L-shaped, and a terminal hole is provided at the top end of the terminal rod 15.

[0035] The three-phase busbars are first shrunk using heat shrink tubing, and then the entire crimping area is shrunk using silicone thermoplastic tubing. The Z-shaped crimp connectors 14 are staggered and have a good covering effect. Copper enameled wire is bent using a spring machine to bend the copper busbars into shape. The enameled wire processing on the spring machine produces the required shape of the three-phase copper busbars.

[0036] In this preferred embodiment, combined with Figure 4 The terminal block 30 is also equipped with a connecting copper busbar. One end of the connecting copper busbar is connected to one of the U-phase copper busbars 21, and the other end is connected to one of the W-phase copper busbars 23.

[0037] In this preferred embodiment, a plurality of auxiliary copper busbars 42 are provided between the three-phase copper busbars and the three-phase pins, and the plurality of auxiliary copper busbars 42 are arranged in a staggered manner in the terminal block 30; a plurality of auxiliary copper plugs 43 are provided between the plurality of auxiliary copper busbars 42, and the plurality of auxiliary copper plugs 43 are arranged in a ring array in the terminal block 30.

[0038] Furthermore, there are 8 auxiliary copper busbars 42 arranged in an alternating pattern, each auxiliary copper busbar 42 being S-shaped; and 4 auxiliary copper inserts 43 are arranged, each auxiliary copper insert 43 being claw-shaped.

[0039] Specifically, the connecting copper busbar is located at the notch of the three-phase copper busbar ring; several connecting pins are provided on the inner side of the connecting copper busbar, auxiliary copper busbar 42, and auxiliary copper plug 43. Several three-phase pins and connecting pins are usually used for connecting motors, transformers, generators and other electrical equipment. They can effectively transmit current and ensure the stable operation of the power system.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A three-phase copper busbar wiring structure, comprising a three-phase terminal block, a three-phase copper busbar, and three-phase pins connected in sequence, characterized in that, The three-phase terminal block includes a U-phase terminal block, a V-phase terminal block, and a W-phase terminal block arranged vertically. The three-phase copper busbar includes a plurality of U-phase copper busbars, a plurality of V-phase copper busbars, and a plurality of W-phase copper busbars arranged horizontally. The three-phase pins include a plurality of U-phase pins, a plurality of V-phase pins, and a plurality of W-phase pins arranged vertically upwards. One end of each of the plurality of U-phase copper busbars is connected to the U-phase terminal block, and the other end of each of the plurality of U-phase copper busbars is connected to a plurality of U-phase pins; one end of each of the plurality of V-phase copper busbars is connected to the V-phase terminal block, and the other end of each of the plurality of V-phase copper busbars is connected to a plurality of V-phase pins; one end of each of the plurality of W-phase copper busbars is connected to the W-phase terminal block, and the other end of each of the plurality of W-phase copper busbars is connected to a plurality of W-phase pins.

2. The three-phase copper busbar wiring structure as described in claim 1, characterized in that, The three-phase copper busbar wiring structure also includes a terminal block with closed ends. The terminal block has several insertion holes arranged longitudinally on one side and several guide holes arranged transversely on the inner wall of the terminal block. The connecting part of the three-phase copper busbar passes vertically through the insertion holes, and the three-phase copper busbar end of the three-phase pin passes transversely through the guide holes.

3. The three-phase copper busbar wiring structure as described in claim 2, characterized in that, The terminal block is circular in shape, and the three-phase copper busbars are respectively arranged inside the terminal block; there are three U-phase copper busbars, three V-phase copper busbars, and three W-phase copper busbars, one of which is arranged in a radial U-shape, and the other two are arranged in an arc shape.

4. A three-phase copper busbar wiring structure as described in claim 3, characterized in that, The terminal block has several gripping holes arranged longitudinally in the middle, and several weight-reducing grooves arranged longitudinally at the top and bottom of the terminal block.

5. A three-phase copper busbar wiring structure as described in claim 1, characterized in that, Each of the three-phase terminal blocks includes a crimp connector and a terminal rod. The cross-section of the crimp connector is U-shaped, and the crimping surface on the front side of the crimp connector is Z-shaped. The longitudinal section of the terminal rod is inverted L-shaped, and a terminal hole is provided at the top end of the terminal rod.

6. A three-phase copper busbar wiring structure as described in claim 4, characterized in that, The terminal block is also equipped with a connecting copper busbar, one end of which is connected to one of the U-phase copper busbars and the other end of which is connected to one of the W-phase copper busbars.

7. A three-phase copper busbar wiring structure as described in claim 6, characterized in that, Several auxiliary copper busbars are provided between the three-phase copper busbars and the three-phase pins, and the several auxiliary copper busbars are arranged in a staggered manner in the terminal block; several auxiliary copper plugs are provided between the several auxiliary copper busbars, and the several auxiliary copper plugs are arranged in a ring array in the terminal block.

8. A three-phase copper busbar wiring structure as described in claim 7, characterized in that, The auxiliary copper busbars are arranged in an alternating pattern, with each auxiliary copper busbar being S-shaped; the auxiliary copper inserts are arranged in a claw-shaped pattern.

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