Axial flux motor line bank

Abstract

The utility model discloses an axial magnetic flux motor line bank, which relates to the technical field of motors and comprises a junction box, a line bank is arranged in the junction box and provided with a plurality of fixing positions, through holes are formed in the side faces of the fixing positions, connecting holes perpendicular to the through holes are formed in the bottoms of the fixing positions, and the connecting holes are connected with the connecting box. A busbar is fixed at the fixing position; through the L-shaped busbar, installation of the lead in different directions is realized, bending of the lead in the installation process is avoided, and the problem that the lead is difficult to install is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to an axial flux motor terminal block. Background Art

[0002] The current technology mainly uses single-row wiring or double-row in-line wiring. When installing a single-row terminal block, each terminal will have three wires (including two motor leads + customer wiring leads). Installing three wires together can easily cause sparking due to loose installation. The axial flux motor has six three-phase lead wires with double-row in-line wiring, which can easily cause the lead wires to bend during installation, making installation difficult and difficult to implement in a standardized manner for mass production.

[0003] For example, Chinese patent CN220067089U, published on November 21, 2023, provides an outlet structure, the outlet structure includes a terminal block (2) fixed inside a connection cavity (C), the connection cavity (C) connects the motor cavity (A) and the junction box cavity (B), the terminal block (2) is connected to the first three-phase line (7) inside the junction box cavity (B) through a terminal bolt (5), a terminal block (1) is integrated inside the terminal block (2), the terminal block (1) is connected to the second three-phase line (8) inside the motor cavity (A); the terminal block (1) and the terminal block (2) are formed into an integral structure. The three-phase line of this solution needs to be bent, which is difficult to install. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing three-phase wire of the motor is easy to cause the lead wire to bend during installation, and the installation is difficult. An axial flux motor terminal block is proposed, which is easy to install.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an axial flux motor terminal block, including a terminal box, a terminal block is arranged in the terminal box, the terminal block is provided with a plurality of fixing positions, the side surfaces of the fixing positions are provided with through holes, the bottom of the fixing positions is provided with connecting holes perpendicular to the through holes, and the fixing positions are fixed with bus bars.

[0006] An axial flux motor terminal block has three fixing positions through the terminal block in a terminal box, each fixing position has a through hole and a connecting hole, a bus is fixed on the surface of the fixing position, a three-phase line is connected to the through hole, a power line is connected to the connecting hole, and the power line and the three-phase line are connected through an L-shaped bus, so that the three-phase line does not need to be bent to be connected to the power line, and the bent surface is replaced by the L-shaped bus.

[0007] Preferably, the busbar is provided with a first arm and a second arm perpendicular to each other, the first arm is provided with a first fixing hole connected to the through hole, and the second arm is provided with a second fixing hole connected to the connecting hole. The first fixing hole and the second fixing hole on the busbar are used to fix the three-phase line and the power line respectively.

[0008] Preferably, knurled nuts are embedded in the through hole and the connecting hole, and the knurled nuts are used to connect with the nuts.

[0009] Preferably, the first fixing hole is connected to the three-phase line, and the second fixing hole is connected to the power line. The three-phase line and the power line are perpendicular to each other and can be connected without bending.

[0010] Preferably, the ends of the three-phase line and the power line are fixed with connection terminals, and the connection terminals are fixed to the knurled nuts by bolts. The top of the connection terminal is flat, so that it can be in closer contact with the busbar.

[0011] Preferably, the inner side wall of the junction box is provided with a plurality of support columns, and the two sides of the junction block are provided with fixed ends respectively, and the support columns and the fixed ends are fixed by bolts. The junction block is suspended and fixed in the junction box.

[0012] Preferably, the side wall of the junction box is provided with a plurality of openings through which the power cord passes, and a connector is fixed outside the opening to facilitate the connection of the power cord with the outside.

[0013] Preferably, a respirator is provided on the side of the junction box, and a connector is provided on the side of the junction box. The respirator is conducive to heat dissipation.

[0014] Preferably, the fixing position is provided with partition walls on both sides to plan the position and avoid misalignment of the connection.

[0015] Preferably, the knurled nut and the terminal block are integrally formed by injection molding, and the bus bar and the terminal block are integrally formed by injection molding. The knurled nut, the bus bar and the terminal block are integrally formed by injection molding to improve production efficiency.

[0016] The substantial effect of the utility model is that the utility model realizes the installation of the lead wires in different directions through the L-shaped bus bar, avoids the bending of the lead wires during the installation process, and solves the problem of difficult installation of the lead wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a junction box of Embodiment 1;

[0018] Figure 2 It is a top view of the junction box of the first embodiment;

[0019] Figure 3 This is the internal connection diagram of the junction box of Embodiment 1;

[0020] Figure 4 It is an exploded view of the wiring bank of the first embodiment;

[0021] Figure 5 This is a structural diagram of the wiring bank of the first embodiment.

[0022] Among them: 1. junction box, 2. terminal block, 21. fixing position, 22. isolation wall, 23. fixing end, 24. connecting hole, 25. through hole, 26. knurled nut, 3. connecting terminal, 4. power cord, 5. three-phase line, 6. connector, 7. connector, 8. respirator, 9. bus, 91. first fixing hole, 92. second fixing hole. DETAILED DESCRIPTION

[0023] The specific implementation of the utility model is further described below through specific embodiments and in conjunction with the accompanying drawings.

[0024] Embodiment one:

[0025] An axial flux motor terminal block 2, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the junction box 1 is square in shape as a whole, with openings on the upper and lower sides. Nine fixing columns are provided on the top edge, and the fixing columns are provided with fixing grooves opened upward for connecting the junction box 1 with other components. The junction box 1 is chamfered to improve the connection strength at the joints of each surface. A wiring row 2 is fixed in the junction box 1. The wiring row 2 is rectangular in shape as a whole. Three fixing positions 21 are provided on the wiring row, and the fixing positions 21 are of the same size. Each fixing position 21 has a partition wall 22 protruding to the surroundings on both sides. The partition wall 22 can separate the fixing positions 21 from each other, which is convenient for finding the correct position during installation, avoiding the phenomenon of misalignment of line connection, and improving installation efficiency.

[0026] The terminal block 2 is a rectangular parallelepiped as a whole, and the thickness at the bottom is narrower than that at the top. A through hole 25 is provided at the narrower part at the bottom of the terminal block 2, and a longitudinal connection hole 24 is provided at the wider part at the top, which extends downward from the top of the terminal block 2. The connection hole 24 does not penetrate to the bottom of the terminal block 2, and is not connected to the through hole 25. The connection hole 24 and the through hole 25 are in a vertical state with each other. A knurled nut 26 is inlaid in each through hole 25 and the wiring hole. There is an inwardly concave groove at the middle position of the outer side of the knurled nut 26, and the knurled nut 26 and the terminal block 2 are integrally cast and formed. Therefore, when the casting is completed, the groove on the knurled nut 26 and the part of the terminal block 2 that is trapped in the groove will form a mortise and tenon structure, so that the knurled nut 26 is stuck in the through hole 25 and the wiring hole, and will not be pulled out due to the force of the bolt. The inside of the knurled nut 26 is provided with an internal thread, which is used to cooperate with the external thread on the bolt to achieve the fixation of the three-phase line 5 and the power line 4.

[0027] An L-shaped busbar 9 is fixed on each fixing position 21 of the wiring row 2. The L-shaped busbar 9 is divided into a first arm and a second arm, and the first arm and the second arm are perpendicular to each other. A first fixing hole 91 is provided on the first arm, and a second fixing hole 92 is provided on the second arm. The setting position of the first fixing hole 91 is changed according to the position of the through hole 25, and the setting position of the second fixing hole 92 is determined according to the relative position of the connecting hole 24. The busbar 9 and the connecting row are also formed by integral casting. When the busbar 9 and the connecting row are cast, the hole position of the first fixing hole 91 on the busbar 9 will coincide with the side port of the through hole 25, and the hole position of the second fixing hole 92 will coincide with the hole position of the connecting hole 24, that is, the bolt can pass through the first fixing hole 91 to be fixedly connected with the knurled nut 26 in the through hole 25, and the bolt can pass through the second fixing hole 92 to be fixedly connected with the knurled nut 26 in the connecting hole 24. Meanwhile, the diameters of the first fixing hole 91 and the second fixing hole 92 are smaller than the diameters of the nuts of the bolts used.

[0028] A fixed end 23 extending outward is also provided on both sides of the terminal block 2. The fixed end 23 is rectangular, and the overall length of the fixed end 23 is shorter than the length of the connecting arm connected thereto. At the same time, there is also a notch recessed inward on the fixed end 23, which saves materials while ensuring the connection strength with the fixed end 23. Two fixing holes are respectively provided on the fixed ends 23 at both ends, and support columns fixed to the wall are respectively provided on the two walls on the inner side of the terminal box 1 opposite thereto. The support columns have two corresponding fixing holes, and internal threads are provided in the fixing holes. The terminal block 2 is fixed to the support columns by bolts, thereby fixing the terminal block 2 to the terminal box 1.

[0029] The base of the terminal block 2 is made of PPS+30% glass fiber, the knurled nut 26 is made of GB809~M8-12 material, and the L-shaped busbar 9 is made of copper Y2 material. The three are formed into one piece by injection molding. The side of the terminal box 1 parallel to the terminal block 2 is provided with three openings at a height relative to the second fixing hole 92 for passing the power cord 4. When connecting, the power cord 4 is connected to the second fixing hole 92 of the busbar 9, and the three-phase line 5 is connected to the first fixing hole 91 of the busbar 9. When the power cord 4 and the three-phase line 5 are both connected to the busbar 9, the busbar 9 is conductive, and the power cord 4 is indirectly connected to the three-phase line 5. At the same time, the busbar 9 is L-shaped and has a curved surface. The bending of the busbar 9 replaces the bending of the three-phase line 5 and the power cord 4, which reduces the difficulty of wiring and improves the wiring efficiency. When installing, first fix the terminal block 2 on the terminal box 1. Next, the power cord 4 is passed through the opening and fixed to the second fixing hole 92 by bolts. A connector 6 is provided outside the opening through which the power cord 4 passes to connect to the power cord 4. When the power cord 4 needs to be connected to an external power source, the connection is quickly achieved through the connector 6. Then, a three-phase line 5 is extended from the bottom of the junction box 1. There are six three-phase lines 5, which are arranged in groups of two and are respectively connected to a first fixing hole 91 on a fixing position 21. The connected power cord 4 and three-phase line 5 are straight without any bends.

[0030] A respirator 8 and a connector 7 are also provided on the side of the junction box 1 . The respirator 8 can allow air to circulate inside and outside the junction box 1 , which is beneficial to the heat dissipation of the internal components of the junction box 1 .

[0031] The utility model connects the power line 4 and the three-phase line 5 to the bus bar 9 through the L-shaped bus bar 9, thereby indirectly changing the connection direction of the power line 4 and the three-phase line 5, and realizing the installation of the lead wires in different directions, avoiding bending of the lead wires during the installation process, and solving the problem of difficult lead wire installation.

[0032] Embodiment 2:

[0033] The junction box 1 is square in shape as a whole, with openings on the upper and lower sides. Nine fixing columns are provided on the top edge, and the fixing columns are provided with fixing grooves opened upwards for connecting the junction box 1 with other components. The junction box 1 is chamfered to improve the connection strength at the joints of each surface. A wiring row 2 is fixed in the junction box 1. The wiring row 2 is rectangular in shape as a whole. Three fixing positions 21 are provided on the wiring row, and the fixing positions 21 are of the same size. Each fixing position 21 has a partition wall 22 protruding to the surroundings on both sides. The partition wall 22 can separate the fixing positions 21 from each other, which is convenient for finding the correct position during installation, avoiding the phenomenon of misalignment of line connection, and improving installation efficiency.

[0034] The terminal block 2 is a rectangular parallelepiped as a whole, and the thickness at the bottom is narrower than that at the top. A through hole 25 is provided at the narrower part at the bottom of the terminal block 2, and a longitudinal connection hole 24 is provided at the wider part at the top, which extends downward from the top of the terminal block 2. The connection hole 24 does not penetrate to the bottom of the terminal block 2, and is not connected to the through hole 25. The connection hole 24 and the through hole 25 are in a vertical state with each other. A knurled nut 26 is inlaid in each through hole 25 and the wiring hole. There is an inwardly concave groove at the middle position of the outer side of the knurled nut 26, and the knurled nut 26 and the terminal block 2 are integrally cast and formed. Therefore, when the casting is completed, the groove on the knurled nut 26 and the part of the terminal block 2 that is trapped in the groove will form a mortise and tenon structure, so that the knurled nut 26 is stuck in the through hole 25 and the wiring hole, and will not be pulled out due to the force of the bolt. The inside of the knurled nut 26 is provided with an internal thread, which is used to cooperate with the external thread on the bolt to achieve the fixation of the three-phase line 5 and the power line 4.

[0035] An L-shaped busbar 9 is fixed on each fixing position 21 of the wiring row 2. The L-shaped busbar 9 is divided into a first arm and a second arm, and the first arm and the second arm are perpendicular to each other. A first fixing hole 91 is provided on the first arm, and a second fixing hole 92 is provided on the second arm. The setting position of the first fixing hole 91 is changed according to the position of the through hole 25, and the setting position of the second fixing hole 92 is determined according to the relative position of the connecting hole 24. The busbar 9 and the connecting row are also formed by integral casting. When the busbar 9 and the connecting row are cast, the hole position of the first fixing hole 91 on the busbar 9 will coincide with the side port of the through hole 25, and the hole position of the second fixing hole 92 will coincide with the hole position of the connecting hole 24, that is, the bolt can pass through the first fixing hole 91 to be fixedly connected with the knurled nut 26 in the through hole 25, and the bolt can pass through the second fixing hole 92 to be fixedly connected with the knurled nut 26 in the connecting hole 24. Meanwhile, the diameters of the first fixing hole 91 and the second fixing hole 92 are smaller than the diameters of the nuts of the bolts used.

[0036] A fixed end 23 extending outward is also provided on both sides of the terminal block 2. The fixed end 23 is rectangular, and the overall length of the fixed end 23 is shorter than the length of the connecting arm connected thereto. At the same time, there is also a notch recessed inward on the fixed end 23, which saves materials while ensuring the connection strength with the fixed end 23. Two fixing holes are respectively provided on the fixed ends 23 at both ends, and support columns fixed to the wall are respectively provided on the two walls on the inner side of the terminal box 1 opposite thereto. The support columns have two corresponding fixing holes, and internal threads are provided in the fixing holes. The terminal block 2 is fixed to the support columns by bolts, thereby fixing the terminal block 2 to the terminal box 1.

[0037] The base of the terminal block 2 is made of PPS+30% glass fiber, the knurled nut 26 is made of GB809~M8-12 material, and the L-shaped busbar 9 is made of copper Y2 material. The three are formed as one by injection molding. The side of the junction box 1 parallel to the terminal block 2 is provided with three openings at a height relative to the second fixing hole 92 for passing the power cord 4. When connecting, the power cord 4 is connected to the second fixing hole 92 of the busbar 9, and the three-phase line 5 is connected to the first fixing hole 91 of the busbar 9. When the power cord 4 and the three-phase line 5 are both connected to the busbar 9, the busbar 9 is conductive, and the power cord 4 is indirectly connected to the three-phase line 5. At the same time, the busbar 9 is L-shaped and has a curved surface. The bending of the busbar 9 replaces the bending of the three-phase line 5 and the power cord 4, which reduces the difficulty of wiring and improves the wiring efficiency.

[0038] The connection ports of the three-phase line 5 and the power line 4 are also connected to the connection terminals 3, which are made of copper. The connection terminals 3 connected to the three-phase line 5 have two fixing holes, each for connecting to a three-phase line 5, and the connection terminals 3 connected to the power line 4 have only one fixing hole for connecting to the power line 4. The other end of the connection terminal 3 is in the shape of a flat sheet with an opening in the middle. When fixing, the bolt passes through the opening and firmly attaches the fixed end 23 of the sheet-like connection terminal 3 to the surface of the bus 9, so that the connection terminal 3 repeatedly contacts the bus 9. The connection terminal 3 can avoid insufficient contact and sparking, thereby damaging the internal components.

[0039] During installation, first fix the terminal block 2 on the terminal box 1. Next, pass the power line 4 through the opening and fix it with the second fixing hole 92 by bolts. A connector 6 is provided outside the opening through which the power line 4 passes to connect with the power line 4. When the power line 4 needs to be connected to an external power source, the connector 6 is used to quickly connect. Then, extend the three-phase line 5 from the bottom of the terminal box 1. There are six three-phase lines 5, which are arranged in groups of two and are connected to the first fixing hole 91 on a fixing position 21 respectively. The connected power line 4 and three-phase line 5 are straight without any bends.

[0040] A respirator 8 and a connector 7 are also provided on the side of the junction box 1 . The respirator 8 can allow air to circulate inside and outside the junction box 1 , which is beneficial to the heat dissipation of the internal components of the junction box 1 .

[0041] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. An axial flux motor terminal block, comprising a terminal box, characterized in that: A wiring row is arranged in the junction box, and the wiring row is provided with a plurality of fixing positions. Through holes are arranged on the sides of the fixing positions, and connecting holes perpendicular to the through holes are arranged at the bottom of the fixing positions. A busbar is fixed on the fixing positions.

2. The axial flux motor terminal block according to claim 1, characterized in that: The busbar is provided with a first arm and a second arm perpendicular to each other, the first arm is provided with a first fixing hole communicating with the through hole, and the second arm is provided with a second fixing hole communicating with the connecting hole.

3. The axial flux motor terminal block according to claim 2, characterized in that: Knurled nuts are embedded in the through hole and the connecting hole.

4. The axial flux motor terminal block according to claim 3, characterized in that: The first fixing hole is connected to a three-phase line, and the second fixing hole is connected to a power line.

5. The axial flux motor terminal block according to claim 4, characterized in that: The ends of the three-phase line and the power line are fixed with connecting terminals, and the connecting terminals are fixed to the knurled nuts by bolts.

6. The axial flux motor terminal block according to claim 1, characterized in that: A plurality of support columns are arranged on the inner side wall of the junction box, and fixed ends are arranged on both sides of the junction block respectively, and the support columns and the fixed ends are fixed by bolts.

7. The axial flux motor terminal block according to claim 4, characterized in that: The side wall of the junction box is provided with a plurality of openings through which the power lines pass, and connectors are fixed outside the openings.

8. An axial flux motor terminal block according to claim 1, 2 or 3, characterized in that: A respirator is provided on the side of the junction box, and a connector is provided on the side of the junction box.

9. An axial flux motor terminal block according to claim 1, 2 or 3, characterized in that: Isolation walls are arranged on both sides of the fixing position.

10. The axial flux motor terminal block according to claim 3, characterized in that: The knurled nut and the terminal block are integrally formed by injection molding, and the bus bar and the terminal block are integrally formed by injection molding.

Images