Motor switching copper bar

Abstract

The utility model provides a motor switching copper bar which comprises three phases of copper bars, the middle sections of the three phases of copper bars are all horizontal and stacked, insulation gaps are reserved among the middle sections of the three phases of copper bars, terminals of the three phases of copper bars are in transition connection with the middle sections of the three phases of copper bars through elastic sections, and the elastic sections are formed by bending the three phases of copper bars for at least two times; an injection molding layer is arranged outside the three-phase copper bar, and the side surface of the connection side of the three-phase copper bar terminal is exposed; an annular groove is formed in the position, corresponding to the middle section of the three-phase copper bar, of the injection molding layer, and a high-pressure sealing ring is arranged in the annular groove; terminals, used for being connected with the motor controller, on the three-phase copper bars are far away from the annular groove; a long-strip-shaped sinking table is formed in the position, between the terminal and the annular groove, of the top face of the injection molding layer, a lug plate is fixedly connected to the middle of the long-strip-shaped sinking table, and a through hole insert is embedded in the lug plate. The high-pressure sealing ring is arranged on the injection molding layer, so that oil gas from the motor side to the motor controller side is effectively blocked.

Description

Technical Field

[0001] The utility model relates to a copper busbar, in particular to a motor adapter copper busbar. Background Art

[0002] With the development of oil-cooled electric drives in the electric vehicle industry, a very good sealing effect is required between the motor controller and the motor, so as to block the oil and gas from the motor side to the motor controller side and ensure the cleanliness of the motor controller side; at the same time, the copper busbar needs to meet the rated current and peak current overload requirements. The blocking of oil and gas between the motor controller and the motor lies in the sealing performance and stability of the copper busbar between the two. Content of the Utility Model

[0003] Aiming at the problems in the prior art, the utility model provides a motor adapter copper busbar, aiming to provide a copper busbar structure with stable structure and good sealing performance.

[0004] A motor adapter copper busbar includes three-phase copper busbars. The middle sections of the three-phase copper busbars are all horizontal and stacked. There is an insulating gap between the middle sections of the three-phase copper busbars. The terminals of the three-phase copper busbars and their middle sections are connected by elastic sections through transition. The elastic sections are formed by bending the three-phase copper busbars themselves at least twice; an injection molding layer is arranged outside the three-phase copper busbars, and the connection sides of the terminals of the three-phase copper busbars are exposed; annular grooves are arranged at the positions corresponding to the middle sections of the three-phase copper busbars on the injection molding layer, and high-pressure sealing rings are arranged in the annular grooves; the terminals of the three-phase copper busbars for connecting with the motor controller are far away from the annular grooves; and a long strip-shaped sunk platform is formed at the position between the terminal and the annular groove on the top surface of the injection molding layer. An ear plate is fixedly connected to the middle of the long strip-shaped sunk platform, and a through-hole insert is embedded on the ear plate.

[0005] Furthermore: positioning notches and positioning protrusions are arranged at the positions corresponding to the long strip-shaped sunk platform on the three-phase copper busbars. The positioning notches and positioning protrusions are both located on the side edges of the three-phase copper busbars and are respectively located on the opposite sides of the three-phase copper busbars.

[0006] Furthermore: the three-phase copper busbars are sequentially recorded as the top row, the middle row and the bottom row from top to bottom. The terminals of the top row, the middle row and the bottom row for connecting with the motor controller are arranged in sequence from left to right, and these terminals are all horizontally arranged; the terminals of the top row, the middle row and the bottom row for connecting with the motor are arranged in sequence from top to bottom, and these terminals are all vertically arranged.

[0007] Furthermore: the elastic section at the right end of the top row is formed by folding upward, folding to the right and folding downward in sequence from the middle section to the terminal; the elastic section at the left end of the top row is formed by extending backward and turning, folding upward and folding forward in sequence from the middle section to the terminal.

[0008] Further, the elastic section at the right end of the middle row is formed by successively folding downward, folding right, and folding downward from the middle section to the terminal; the elastic section at the left end of the middle row is formed by successively extending and turning backward, folding upward, and folding forward from the middle section to the terminal.

[0009] Further, the elastic section at the right end of the bottom row is formed by successively folding downward, folding right, and folding downward from the middle section to the terminal; the elastic section at the left end of the bottom row is formed by successively extending and turning backward, folding upward, and folding forward from the middle section to the terminal.

[0010] Further, a wiring hole is provided on the terminal of the three-phase copper bar, and a connecting nut is fixedly connected in the wiring hole.

[0011] Further, a heat dissipation gap is left at a position on the injection molding layer between the connecting nut and the middle section or between the connecting nut and the elastic section.

[0012] The beneficial effects of the present utility model are as follows: By providing an elastic section between the terminal of the three-phase copper bar and the middle section, the copper bar can be flexibly connected between the motor controller and the motor, enabling the copper bar to adapt to the position change between the motor controller and the motor and its own deformation, ensuring the stability of the connection structure between the copper bar and the motor controller and the motor, meeting the requirements of rated current and peak current overload, reducing heat generation and increasing the service life; By providing a high-pressure sealing ring on the injection molding layer, the oil and gas from the motor side to the motor controller side can be effectively blocked. Description of the Drawings

[0013] Figure 1 is a structural schematic diagram of the present utility model;

[0014] Figure 2 is a structural schematic diagram of the three-phase copper bar inside the present utility model. Detailed Embodiment

[0015] The following will describe the present utility model in detail with reference to the drawings. The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model. The orientation terms such as left, middle, right, up, and down in the embodiments of the present utility model are only relative concepts to each other or are referenced based on the normal use state of the product, and should not be considered as restrictive.

[0016] A motor adapter copper bar, in combination with Figure 1 and Figure 2As shown in the figure, it includes a three-phase copper bar 1. Terminals are provided at both ends of the three-phase copper bar 1. The middle sections of the three-phase copper bar 1 are horizontally and stacked. An insulating gap is left between the middle sections of the three-phase copper bar 1. The terminals of the three-phase copper bar 1 and its middle section are transitionally connected through an elastic section 14. The elastic section 14 is formed by bending the three-phase copper bar 1 itself at least twice; an injection molding layer 2 is provided outside the three-phase copper bar 1, and the connection side surface of the terminal of the three-phase copper bar 1 is exposed; an annular groove 22 is provided on the injection molding layer 2 corresponding to the middle section of the three-phase copper bar 1, and a high-pressure sealing ring 3 is provided in the annular groove 22; to improve the cleanliness on the motor controller side, the annular groove 22 is close to the terminal of the three-phase copper bar 1 for connecting to the motor, and the terminal of the three-phase copper bar 1 for connecting to the motor controller is far from the annular groove 22; to facilitate the fixed installation of the present utility model, a long-strip-shaped sunk platform 23 is formed on the top surface of the injection molding layer 2 at the position between the terminal and the annular groove 22. An ear plate 21 is fixedly connected to the middle of the long-strip-shaped sunk platform 23, and a through-hole insert 211 is embedded in the ear plate 21; since the middle of the three-phase copper bar 1 is relatively long, to avoid unnecessary displacement of the three-phase copper bar 1 when injecting the injection molding layer 2 on its outer side, a positioning notch 15 and a positioning protrusion 16 are provided on the three-phase copper bar 1 corresponding to the long-strip-shaped sunk platform 23. The positioning notch 15 and the positioning protrusion 16 are both located on the side of the three-phase copper bar 1 and are respectively located on the opposite sides of the three-phase copper bar 1; during injection molding, the position of the three-phase copper bar 1 on the tooling can be restricted by the positioning notch 15 and the positioning protrusion 16.

[0017] Among them, the three-phase copper bar 1 is sequentially denoted as the top row 11, the middle row 12, and the bottom row 13 from top to bottom. The terminals of the top row 11, the middle row 12, and the bottom row 13 for connecting to the motor controller are arranged in sequence from left to right, and these terminals are all horizontally arranged; the terminals of the top row 11, the middle row 12, and the bottom row 13 for connecting to the motor are arranged in sequence from top to bottom, and these terminals are all vertically arranged. The elastic section 14 at the right end of the top row 11 is formed by turning up, turning right, and turning down in sequence from the middle section to the terminal; the elastic section at the left end of the top row 11 is formed by extending backward and turning, turning up, and turning forward in sequence from the middle section to the terminal. The elastic section at the right end of the middle row 12 is formed by turning down, turning right, and turning down in sequence from the middle section to the terminal; the elastic section at the left end of the middle row 12 is formed by extending backward and turning, turning up, and turning forward in sequence from the middle section to the terminal. The elastic section at the right end of the bottom row 13 is formed by turning down, turning right, and turning down in sequence from the middle section to the terminal; the elastic section at the left end of the bottom row 13 is formed by extending backward and turning, turning up, and turning forward in sequence from the middle section to the terminal.

[0018] In addition, for the convenience of connecting the terminal to the corresponding terminal block, a wiring hole 17 is provided on the terminal of the three-phase copper bar 1, and a connecting nut 18 is fixedly connected in the wiring hole 17. The connecting nut 18 is made of the same material as the three-phase copper bar 1. For the convenience of heat dissipation, a heat dissipation gap is left at a position on the injection molding layer 2 between the connecting nut 18 and the middle section or at a position between the connecting nut 18 and the elastic section.

[0019] During use, the top surfaces of the three terminals at the left end of the three-phase copper bar 1 are exposed and used for externally connecting a motor controller, and the right side surfaces of the three terminals at the right end of the three-phase copper bar 1 are exposed and used for externally connecting a motor. The utility model is fixedly connected to the motor controller or the motor through the ear plate 21.

[0020] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection claimed by the utility model is defined by the appended claims and their equivalents.

Claims

1. A motor transfer copper bar, characterized in that: It comprises a three-phase copper bar, the middle sections of which are all horizontal and stacked, an insulating gap is left between the middle sections of the three-phase copper bar, the terminals of the three-phase copper bar and the middle sections thereof are transitionally connected via an elastic section, the elastic section is formed by the three-phase copper bar itself after being bent at least twice; an injection molding layer is arranged outside the three-phase copper bar, and the connection side of the terminals of the three-phase copper bar is exposed; an annular groove is arranged on the injection molding layer at a position corresponding to the middle section of the three-phase copper bar, and a high-pressure sealing ring is arranged in the annular groove; the terminal on the three-phase copper bar for connecting with the motor controller is away from the annular groove; and a long strip sinking platform is formed on the top surface of the injection molding layer at a position between the terminal and the annular groove, an ear plate is fixedly connected to the middle of the long strip sinking platform, and a through-hole insert is embedded in the ear plate.

2. The motor transfer copper bar according to claim 1, characterized in that: Positions corresponding to the long strip sinks on the three-phase copper bar are provided with positioning notches and positioning protrusions, which are both located on the sides of the three-phase copper bar and on opposite sides of the three-phase copper bar.

3. The motor transfer copper bar according to claim 1 or 2, characterized in that: From top to bottom, the three-phase copper busbars are marked as top row, middle row and bottom row. The terminals of the top row, middle row and bottom row used to connect to the motor controller are arranged from left to right, and the terminals are all horizontally set; the terminals of the top row, middle row and bottom row used to connect to the motor are arranged from top to bottom, and the terminals are all vertically set.

4. The motor transfer copper bar according to claim 3, characterized in that: The elastic section at the right end of the top row is formed by folding upward, rightward and downward from the middle section to the terminal in sequence; the elastic section at the left end of the top row is formed by extending backward, turning, folding upward and forward from the middle section to the terminal in sequence.

5. The motor transfer copper bar according to claim 3, characterized in that: The elastic section at the right end of the middle row is formed by folding downward, folding rightward and folding downward from the middle section to the terminal; the elastic section at the left end of the middle row is formed by extending backward, turning, folding upward and folding forward from the middle section to the terminal.

6. The motor transfer copper bar according to claim 3, characterized in that: The elastic section at the right end of the bottom row is formed by folding downward, folding rightward and folding downward from the middle section to the terminal; the elastic section at the left end of the bottom row is formed by extending backward, turning, folding upward and folding forward from the middle section to the terminal.

7. The motor transfer copper bar according to claim 1, characterized in that: A wiring hole is provided on the terminal of the three-phase copper busbar, and a connecting nut is fixedly connected in the wiring hole.

8. The motor transfer copper bar according to claim 7, characterized in that: A heat dissipation gap is reserved on the injection molding layer at a position between the connecting nut and the middle section or at a position between the connecting nut and the elastic section.

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