Jack connection structure of wire in motor rotor

Abstract

The application discloses a jack connection structure of a wire in a motor rotor and relates to the technical field of a motor rotor wire connection structure. The jack connection structure comprises a protective shell, a fixed ring seat arranged above the protective shell and a ring plate arranged at the top of the fixed ring seat. A stator winding is arranged in the protective shell. A rotor is arranged in the inner circle of a rotor frame and extends into the stator winding at the bottom end. A wiring ring seat is arranged between the protective shell and the fixed ring seat. A plug-in type power connection mechanism is arranged in the power connection groove. A power connection head matched with the plug-in type power connection mechanism is arranged in the mounting groove. The wiring ring seat, the plug-in type power connection mechanism and the fixed ring seat are matched with each other, so that the precision and the concentricity of the rotor after assembly are improved, the quality of wire filling is improved, stable power supply is provided for the internal polar brush through the plurality of conductive copper sheets, the welding process is effectively replaced, the welding cost is saved, the welding process is omitted and the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of motor rotor wire connection structure technology, and more particularly to the insertion connection structure of wires in motor rotors. Background Technology

[0002] The continuous development and progress of the motor industry presents challenges for companies facing the rise of the green industry market. Innovation in motor structure and manufacturing processes to improve production efficiency, save costs, and reduce unit power consumption are issues every company must address. Only through continuous improvement can a company win in the market.

[0003] Traditional motor wiring welding requires a special welding machine to weld the wires to the conductive copper sheets. The motor must be fixed in a special fixture, the wires are then threaded through the holes in the conductive copper sheets, and welding and filling operations are performed. This method consumes welding wire for each motor, and the precision, concentricity, and filling quality of the rotor assembly after motor welding are very rough. Therefore, it is necessary to design a motor rotor wire insertion connection structure that can solve the above technical problems. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wire insertion connection structure for motor rotors.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a plug-in connection structure for the conductors in the motor rotor, comprising a protective shell, a fixing ring seat disposed above the protective shell, and an annular plate disposed on the top of the fixing ring seat. The protective shell contains a stator winding. A rotor frame is installed in the inner ring of the fixing ring seat, and a rotor with its bottom end extending into the stator winding is installed in the inner ring of the rotor frame. A wiring ring seat is fixedly disposed between the protective shell and the fixing ring seat. A connection ring groove is formed on the top of the wiring ring seat, and a plug-in connection mechanism is disposed inside the connection ring groove. The inner bottom of the fixing ring seat has vertically formed mounting grooves on both the front and back, and a connection head that mates with the plug-in connection assembly is disposed inside the mounting grooves.

[0006] Preferably, the plug-in connection mechanism includes a support ring plate horizontally disposed in the upper part of the connection ring groove, an installation port opened in the middle of the front end of the support ring plate, and a plug-in seat vertically disposed inside the installation port. A positioning ring plate is fixedly disposed on the top of the connection ring seat, and a through opening is opened at the front end of the top of the positioning ring plate for the plug-in seat to pass through. A first conductive copper sheet is disposed on one side of the lower part of the connection ring groove, a second conductive copper sheet is disposed on the other side of the lower part of the connection ring groove, and a third conductive copper sheet is disposed at the front end of the lower part of the connection ring groove. An elliptical plug-in groove is vertically opened on the top of the plug-in seat, and three conductive posts are vertically disposed inside the plug-in groove. A sealing component for plug-in buffering is disposed inside the plug-in seat.

[0007] Preferably, the sealing assembly includes a sealing plate that is horizontally movable inside the insertion slot, guide rods that are vertically fixed to both sides of the bottom of the sealing plate, and a return spring sleeved on the guide rods. The bottom end of the guide rods extends movably to the bottom of the insertion seat, and an anti-detachment ring is fixedly sleeved on the bottom end of the guide rods.

[0008] Preferably, three electrical connectors are vertically arranged through the inner bottom surface of the insertion slot, and a conductive groove is vertically opened on the bottom end surface of the electrical connector; a conductive rod is vertically fixed to the top of the inner end of the first conductive copper sheet, the second conductive copper sheet and the third conductive copper sheet, and the top end of the conductive rod is movably inserted into the conductive groove at the bottom of the electrical connector.

[0009] Preferably, a buffer cavity is formed in the upper part of the conductive post, and a conductive channel communicating with the buffer cavity is formed in the bottom end face of the conductive post; the top of each of the three electrical bases is vertically fixed with a conductive copper post, and the upper part of the conductive copper post is movably inserted into the conductive channel.

[0010] Preferably, an anti-detachment block is horizontally movable inside the buffer cavity, and a buffer spring is vertically fixed to the top of the anti-detachment block; the top of the conductive copper column passes through the conductive channel and extends into the buffer cavity to be fixed to the bottom of the anti-detachment block; a positioning ring is fixedly sleeved on the bottom of the conductive column, and a buffer space is spaced between the bottom end face of the conductive column and the top of the electrical base.

[0011] Preferably, the outer wall of the conductive post slides and fits into the inner wall of the conductive channel; the inner ends of the first, second, and third conductive copper sheets are all wrapped with an insulating sleeve; an elliptical support plate is horizontally fixedly sleeved on the upper part of the plug-in base, and the bottom of the elliptical support plate abuts against the top of the positioning ring plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention, through the cooperation of the wiring ring seat, the plug-in electrical connection mechanism, and the fixed ring seat, facilitates the improvement of the precision and concentricity of the rotor after assembly, as well as the improvement of the quality of wire filling; it also facilitates the stable power supply to the internal electrode brush through multiple conductive copper sheets, effectively replacing the welding process, saving welding costs, eliminating welding steps, and improving production efficiency; at the same time, the conductive post can be inserted into the electrical connection hole of the electrical connector, realizing a tight electrical connection between the two; and when the electrical connector is inserted into the electrical connection slot, after the conductive post is initially inserted into the electrical connector, the cooperation of the buffer spring, the anti-detachment block, and the conductive copper post facilitates the initial buffering and anti-damage effect of the electrical connector during insertion, improving the protection effect of each component during plug-in electrical connection; and through the cooperation of the protective shell and the fixed ring seat, it facilitates a significant improvement in yield, shortens assembly time, simplifies the process, improves the concentricity of the rotor after assembly, and significantly reduces the noise generated during operation. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0014] Figure 1 This is a perspective view of the overall structure of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the connector of the present invention;

[0016] Figure 3 This is a perspective view of the positioning ring plate and the insertion base structure of the present invention;

[0017] Figure 4 This is a three-dimensional structural diagram of the upper electrical groove and plug socket of the wiring ring seat of the present invention;

[0018] Figure 5 This is a three-dimensional structural diagram of the stator winding and connector of the present invention;

[0019] Figure 6 This is a top view schematic diagram of the plug-in socket and connector ring seat of the present invention;

[0020] Figure 7 This is a three-dimensional structural diagram of the stator winding and conductive copper sheet of the present invention;

[0021] Figure 8 This is a top view of the conductive copper sheet structure of the present invention;

[0022] Figure 9 This is a three-dimensional structural diagram of the connection state between the conductive copper sheet and the socket of the present invention;

[0023] Figure 10 This is a top view of the conductive copper sheet and the connector of the present invention in a connected state.

[0024] Figure 11 This is a front view sectional view of the connector and conductive post of the present invention.

[0025] The numbers in the diagram are: 1. Protective shell; 2. Fixing ring seat; 3. Annular plate; 4. Rotor frame; 5. Rotor; 6. Electrical connector; 7. Wiring ring seat; 8. Support ring plate; 9. Positioning ring plate; 10. Plug-in socket; 11. Elliptical support plate; 12. Stator winding; 13. First conductive copper sheet; 14. Second conductive copper sheet; 15. Third conductive copper sheet; 16. Conductive post; 17. Conductive rod; 18. Electrical connector; 19. Sealing plate; 20. Guide rod; 21. Return spring; 22. Conductive copper post; 23. Anti-detachment block; 24. Buffer spring. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] Example: See Figures 1 to 11 The motor rotor wire insertion connection structure includes a protective shell 1, a fixing ring seat 2 located above the protective shell 1, and an annular plate 3 located on top of the fixing ring seat 2. The protective shell 1 contains a stator winding 12. A rotor frame 4 is installed in the inner ring of the fixing ring seat 2, and a rotor 5 with its bottom end extending into the stator winding 12 is installed in the inner ring of the rotor frame 4. A wiring ring seat 7 is fixedly provided between the protective shell 1 and the fixing ring seat 2. A connecting ring groove is opened at the top of the wiring ring seat 7, and a plug-in connection mechanism is provided inside the connecting ring groove. The inner bottom of the fixing ring seat 2 has vertically opening mounting grooves at the front and back, and a connector 6 that mates with the plug-in connection assembly is provided inside the mounting grooves. The plug-in connection mechanism includes a supporting ring plate 8 horizontally located in the upper part of the connecting ring groove, an installation opening at the middle of the front end of the supporting ring plate 8, and a plug-in seat 10 vertically located inside the installation opening. A positioning ring plate 9 is fixedly provided at the top of the wiring ring seat 7. The top front end has a through-hole for the insertion socket 10 to pass through; a first conductive copper sheet 13 is provided on one side of the lower part of the contact ring groove, a second conductive copper sheet 14 is provided on the other side of the lower part of the contact ring groove, and a third conductive copper sheet 15 is provided at the front end of the lower part of the contact ring groove. An elliptical insertion groove is vertically opened on the top of the insertion socket 10, and three conductive posts 16 are vertically provided inside the insertion groove. A sealing component for insertion buffer is provided inside the insertion socket 10. Through the cooperation of the connection ring seat 7 with the plug-in contact mechanism and the fixed ring seat 2, it is convenient to provide stable power to the internal electrode brush through multiple conductive copper sheets, effectively replacing the welding process, saving welding costs, eliminating welding steps, and improving production efficiency. Through the cooperation of the protective shell 1 with the fixed ring seat 2, it is convenient to significantly improve the yield rate, shorten the assembly time, simplify the process, improve the concentricity of the rotor after assembly, and significantly reduce the noise generated during operation.

[0028] In this invention, the sealing assembly includes a sealing plate 19 horizontally movable inside the insertion slot, guide rods 20 vertically fixed to both sides of the bottom of the sealing plate 19, and a return spring 21 sleeved on the guide rods 20. The top surface of the sealing plate 19 has a circular opening with multiple conductive posts 16. The bottom end of the guide rod 20 extends movably to the bottom of the insertion seat 10, and an anti-detachment ring is fixedly sleeved on the bottom end of the guide rod 20. An elliptical support plate 11 is horizontally fixedly sleeved on the upper part of the insertion seat 10, and the bottom of the elliptical support plate 11 abuts against the top of the positioning ring plate 9.

[0029] In this invention, three electrical connectors 18 are vertically arranged through the inner bottom surface of the insertion slot, and a conductive groove is vertically formed on the bottom end surface of the electrical connector 18; the outer ends of the first conductive copper sheet 13, the second conductive copper sheet 14, and the third conductive copper sheet 15 are all bent to facilitate the current to pass through the three conductive copper sheets to supply power to the internal electrode brush; a conductive rod 17 is vertically fixed to the top of the inner end of the first conductive copper sheet 13, the second conductive copper sheet 14, and the third conductive copper sheet 15, and the top end of the conductive rod 17 is movably inserted into the conductive groove in the lower part of the electrical connector 18; a buffer cavity is formed in the upper part of the conductive post 16, and a vertically formed conductive groove is formed on the bottom end surface of the conductive post 16. It is equipped with a conductive channel communicating with the buffer cavity; the top of each of the three electrical connectors 18 is vertically fixed with a conductive copper post 22, and the upper part of the conductive copper post 22 is movably inserted into the conductive channel; at the same time, the conductive post 16 can be inserted into the electrical connection hole of the electrical connector 6 to realize a tight electrical connection between the two. When the electrical connector 6 is inserted into the electrical connection slot, after the conductive post 16 is initially inserted into the electrical connector 6, the buffer spring 24, the anti-disengagement block 23 and the conductive copper post 22 cooperate to provide initial buffering and anti-damage protection for the electrical connector 6 during insertion, thereby improving the protection effect for each component during plug-in electrical connection.

[0030] In this invention, a horizontally movable anti-detachment block 23 is provided inside the buffer cavity, and a buffer spring 24 is vertically fixed to the top of the anti-detachment block 23; the top of the conductive copper column 22 passes through the conductive channel and extends into the buffer cavity to be fixed to the bottom of the anti-detachment block 23; a positioning ring is fixedly sleeved on the bottom of the conductive column 16, and a buffer space is spaced between the bottom end face of the conductive column 16 and the top of the electrical base 18; the outer wall of the conductive column 16 slides against the inner wall of the conductive channel; the inner ends of the first conductive copper sheet 13, the second conductive copper sheet 14 and the third conductive copper sheet 15 are all wrapped with an insulating sleeve, which greatly improves the leakage prevention effect between the conductive copper sheets.

[0031] Working principle: In this embodiment, the present invention also proposes a method for using the insertion connection structure of the wires in the motor rotor, including the following steps:

[0032] Step 1: First, fit the protective shell 1 onto the outside of the stator winding 12. Then, install the terminal ring seat 7 on the top of the protective shell 1. Next, install the first conductive copper sheet 13, the second conductive copper sheet 14, and the third conductive copper sheet 15 one by one in the contact ring groove at the top of the terminal ring seat 7. Then, horizontally fix the support ring plate 8 in the upper part of the terminal ring seat 7. Next, install the plug seat 10 on the support ring plate 8 and insert the conductive post 16 at the inner end of the first conductive copper sheet 13, the second conductive copper sheet 14, and the third conductive copper sheet 15 into the bottom of the contact seat 18 at the bottom of the plug seat 10.

[0033] Step 2: After the plug-in base 10 is installed and fixed, the positioning ring plate 9 is fixed on the top of the wiring ring base 7. At this time, the plug-in base 10 extends out of the through hole of the positioning ring plate 9. Then, the fixing ring base 2 is fixedly installed on the top of the wiring ring base 7. At the same time, the plug-in base 10 extends into the mounting groove at the bottom front end of the fixing ring base 2. At this time, the electrical connector 6 inside the fixing ring base 2 can be inserted into the plug slot of the plug-in base 10 and a plug-in electrical connection is achieved between it and the plug-in base 10.

[0034] Step 3: When the connector 6 is inserted into the socket 10, the connector 6 will abut against the sealing plate 19 and descend, and the conductive post 16 can be inserted into the connector hole of the connector 6 to achieve a tight electrical connection between the two. At the same time, after the connector 6 is inserted into the connector groove, after the conductive post 16 is initially inserted into the connector 6, the buffer spring 24, the anti-disengagement block 23 and the conductive copper post 22 cooperate to provide initial buffering and anti-damage protection for the connector 6 during insertion.

[0035] Step four: The bottom of the descending sealing plate 19 will abut against the top of the positioning ring of the conductive post 16. As the sealing plate 19 continues to descend, it will abut against the positioning ring and descend. In turn, the positioning ring will drive the conductive post 16 to descend. The descending conductive post 16 will compress the buffer spring 24, thereby enabling the conductive post 16 to achieve electrical connection with the junction box 18 and the conductive copper post 22, and improving the stability of the electrical connection between the three.

[0036] Step five: Finally, fix the annular plate 3 to the top of the fixed ring seat 2 to complete the assembly. This effectively replaces the welding process, saves welding costs, eliminates the welding process, and improves production efficiency.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A wire insertion connection structure in a motor rotor, comprising a protective shell (1), a fixing ring seat (2) disposed above the protective shell (1), and an annular plate (3) disposed on the top of the fixing ring seat (2), characterized in that: The protective shell (1) is provided with a stator winding (12) inside. A rotor frame (4) is installed in the inner ring of the fixed ring seat (2). A rotor (5) with its bottom end extending into the stator winding (12) is installed in the inner ring of the rotor frame (4). A wiring ring seat (7) is fixed between the protective shell (1) and the fixed ring seat (2). A power connection ring groove is opened on the top of the wiring ring seat (7). A plug-in power connection mechanism is provided inside the power connection ring groove. A mounting groove is vertically opened on the front and back of the inner bottom of the fixed ring seat (2). A power connection head (6) that cooperates with the plug-in power connection assembly is provided inside the mounting groove. The plug-in power connection mechanism includes a support ring plate (8) horizontally disposed in the upper part of the power connection ring groove, an installation port opened in the middle of the front end of the support ring plate (8), and a plug-in seat (10) vertically disposed inside the installation port. A positioning ring plate (9) is fixedly disposed on the top of the connection ring seat (7). A through hole for the plug-in seat (10) to pass through is opened at the front end of the top of the positioning ring plate (9). A first conductive copper sheet (13) is disposed on one side of the lower part of the power connection ring groove, a second conductive copper sheet (14) is disposed on the other side of the lower part of the power connection ring groove, and a third conductive copper sheet (15) is disposed at the front end of the lower part of the power connection ring groove. An elliptical plug-in groove is vertically opened at the top of the plug-in seat (10). Three conductive posts (16) are vertically disposed inside the plug-in groove. A sealing component for plug-in buffer is disposed inside the plug-in seat (10). The sealing assembly includes a horizontally movable sealing plate (19) inside the insertion slot, a guide rod (20) vertically fixed to both sides of the bottom of the sealing plate (19), and a return spring (21) sleeved on the guide rod (20). The bottom end of the guide rod (20) extends movably through to the bottom of the insertion seat (10), and an anti-detachment ring is fixedly sleeved on the bottom end of the guide rod (20).

2. The insertion connection structure for the wires in the motor rotor according to claim 1, characterized in that: Three electrical connectors (18) are vertically connected through the inner bottom surface of the plug slot. A conductive groove is vertically opened on the bottom surface of the electrical connector (18). The top of the inner end of the first conductive copper sheet (13), the second conductive copper sheet (14) and the third conductive copper sheet (15) are all vertically fixed with conductive rods (17). The top of the conductive rods (17) is movably inserted into the conductive groove at the bottom of the electrical connector (18).

3. The insertion connection structure for the wires in the motor rotor according to claim 2, characterized in that: The upper part of the conductive post (16) is provided with a buffer cavity, and the bottom end face of the conductive post (16) is provided with a conductive channel communicating with the buffer cavity; the top of each of the three electrical bases (18) is vertically fixed with a conductive copper post (22), and the upper part of the conductive copper post (22) is movably inserted into the conductive channel.

4. The insertion connection structure for the wires in the motor rotor according to claim 3, characterized in that: The buffer cavity is provided with a horizontally movable anti-detachment block (23), and the top of the anti-detachment block (23) is vertically fixed with a buffer spring (24); the top of the conductive copper column (22) passes through the conductive channel and extends into the buffer cavity to be fixedly connected to the bottom of the anti-detachment block (23); a positioning ring is fixedly sleeved on the bottom of the conductive column (16), and there is a buffer space between the bottom end face of the conductive column (16) and the top of the electrical base (18).

5. The insertion connection structure for the wires in the motor rotor according to claim 4, characterized in that: The outer wall of the conductive post (16) slides against the inner wall of the conductive channel; the inner ends of the first conductive copper sheet (13), the second conductive copper sheet (14) and the third conductive copper sheet (15) are all wrapped with an insulating sleeve; the upper part of the plug-in seat (10) is horizontally fixedly sleeved with an elliptical support plate (11), and the bottom of the elliptical support plate (11) abuts against the top of the positioning ring plate (9).

Images