The output structure of the series double-stator motor

Abstract

The present invention provides a wire output structure of a series-type double-stator motor, wherein a terminal fixing piece is installed on the double-stator motor, and a first terminal fixing part and a second terminal fixing part are provided on each side of the terminal fixing piece, so that the wire output head of the stator on this side is fixed to the first terminal fixing part through the first terminal, and is fixed to the second terminal fixing part through the second terminal; the first terminal fixing part and the second terminal fixing part located on both sides of the terminal fixing piece are respectively arranged diagonally, and every two diagonally first terminals are connected by a first connecting piece, and a second connecting piece is connected between the second terminals located on one side of the terminal fixing piece, and a third terminal for connecting an external cable is relatively fixed to the second terminal on the other side, and the second terminal fixing part has an inclination, so that the external cable can be output in a top, front or back manner, thereby reducing the number of components and reducing the difficulty of management.

Description

Technical Field

[0001] The present invention relates to the technical field of dual-stator motors, and in particular to an output line structure of a series dual-stator motor. Background Art

[0002] A dual-stator motor refers to a motor with two stators. It has the advantages of high precision, fast response, large acceleration, high overload capacity, high mechanical integration, high utilization of motor structure materials and flexible and diverse drive control system. Under the condition of limited working space, it can greatly reduce the volume and weight of the mechanical system and improve the accuracy and dynamic performance of the system. Therefore, it has broad application prospects in buses, sanitation vehicles, trucks, CNC machine tools, robots and other fields.

[0003] However, different manufacturers or different platforms have different requirements for the direction of the motor's wiring. Currently, there are three types of wiring: top wiring, front wiring, and rear wiring. And each wiring method of the double-stator motor has a different wiring structure, which makes each set of components have a different shape, which not only increases the number of components and production costs, but also increases the difficulty of management, making the applicability greatly reduced. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a wire output structure of a series-connected dual-stator motor which can effectively reduce production costs and has strong applicability.

[0005] A wire outlet structure of a series dual-stator motor, comprising a terminal fixture, a first terminal, a second terminal, a third terminal, a first connector, a second connector and an external cable, wherein the terminal fixture is installed on the dual-stator motor, and the two sides of the terminal fixture correspond to two stators respectively, wherein an equal number of first terminal fixing parts and second terminal fixing parts are provided on each side of the terminal fixture, so that the wire outlet of the stator on this side is fixed to the first terminal fixing part through the first terminal, and is fixed to the second terminal fixing part through the second terminal;

[0006] The first terminal fixing portion and the second terminal fixing portion located on both sides of the terminal fixing piece are respectively arranged diagonally, and every two diagonally arranged first terminals are connected by the first connecting piece, and the second terminals located on one side of the terminal fixing piece are connected with the second connecting piece, and the second terminal on the other side is also relatively fixed with a third terminal for connecting the external cable, wherein the second terminal fixing portion has an inclination so that the external cable can be connected from the top, front or back.

[0007] Further, the second terminal comprises a second terminal sleeve portion and a second terminal abutment portion, the second terminal sleeve portion and the second terminal abutment portion are connected, wherein the second terminal sleeve portion is used to connect the outlet head, the second terminal abutment portion is used to be fixed on the second terminal fixing portion, and the angle between the second terminal sleeve portion and the second terminal abutment portion is adapted to the inclination of the second terminal fixing portion;

[0008] The third terminal includes a third terminal sleeve and a third terminal abutment, the third terminal sleeve and the third terminal abutment are connected, wherein the third terminal sleeve is used to connect the external cable, the third terminal abutment is used to be fixed on the second terminal abutment of the second terminal, and the angle between the third terminal sleeve and the third terminal abutment is consistent with the angle between the second terminal sleeve and the second terminal abutment.

[0009] Furthermore, the third terminal sleeve portion and the second terminal sleeve portion are located on both sides, so that the external cable is arranged vertically, thereby realizing top outlet of the external cable.

[0010] Furthermore, the third terminal sleeve portion and the second terminal sleeve portion are located on the same side, so that the external cable is arranged horizontally, thereby realizing front or rear outlet of the external cable.

[0011] Further, the first terminal fixing portion is planar;

[0012] The first terminal comprises a first terminal sleeve portion and a first terminal abutment portion, the first terminal sleeve portion and the first terminal abutment portion are connected and vertically arranged, wherein the first terminal sleeve portion is used to connect the outlet terminal, and the first terminal abutment portion is used to be fixed on the first terminal fixing portion.

[0013] Furthermore, it also includes a junction box, which has a accommodating cavity. When the junction box is installed on the dual-stator motor, the terminal fixing piece is located in the accommodating cavity. The junction box is provided with a top outlet hole for the top outlet of the external cable, and front and rear outlet holes for the front and rear outlets of the external cable.

[0014] Furthermore, a locking hole is provided on the junction box, and the locking hole is located between the top wire outlet hole and the front and rear wire outlet holes.

[0015] Furthermore, the wiring terminal fixing piece is provided with a first avoidance groove for avoiding installation of the first connecting piece, and the first avoidance groove is located between two second terminal fixing parts at two diagonal sides.

[0016] Furthermore, the wiring terminal fixing member includes two wiring positioning blocks, each of which is correspondingly mounted on a stator, and the wiring positioning block is provided with the first terminal fixing portion and the second terminal fixing portion, which are arranged at intervals.

[0017] Furthermore, the terminal fixing piece is an integrated structure, and a baffle is provided between the first terminal fixing portion and the second terminal fixing portion.

[0018] Furthermore, the inclination of the second terminal fixing portion is 45°.

[0019] Compared with the prior art, this technical solution has the following advantages:

[0020] The first terminal fixing part and the second terminal fixing part located on both sides of the terminal fixing part are respectively arranged diagonally, and every two diagonally arranged first terminal blocks are connected by the first connecting part to realize the three windings in series of the stators on both sides, wherein the second terminal fixing part has an inclination, and through the assembly and cooperation of the first terminal block, the second terminal block and the third terminal block at different angles, the external cable can be connected to the top, front or back. Compared with the prior art, each connection direction corresponds to a set of connection structures, which reduces the number of components, reduces production costs, reduces management difficulties, and effectively improves applicability. There are two ways to connect the external cable from the top, and the bolts can be locked and tightened from the oblique upper side of the rear side or the front side. According to the specific use scenario of the motor, the top connection form that is easy to assemble can be selected.

[0021] The present invention is further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of a first embodiment of the output line structure of a dual-stator motor according to the present invention is shown;

[0023] Figure 2 Shows Figure 1 An exploded view of the output structure of the dual-stator motor described in;

[0024] Figure 3 Shows Figure 1 A schematic structural diagram of a first embodiment of the terminal fixing member;

[0025] Figure 4 Shows Figure 1 A structural schematic diagram of a second embodiment of the terminal fixing member described in;

[0026] Figure 5 Shows Figure 1 A schematic diagram of the structure of the wiring positioning block described in;

[0027] Figure 6 Shows Figure 1 A schematic structural diagram of the first connecting member;

[0028] Figure 7 Shows Figure 1 A schematic structural diagram of the second connecting member;

[0029] Figure 8 Shows Figure 1 A schematic diagram of the series connection of the outgoing line structure of the dual-stator motor described in;

[0030] Fig. 9 Shows Figure 1 A schematic diagram of the outlet terminal of the single-side stator described in;

[0031] Fig.10 Shows Figure 1 A schematic diagram of a first embodiment of a top outlet structure of a dual-stator motor;

[0032] Fig.11 Shows Fig.10 A cross-sectional view of the top outlet of the outlet structure of the dual-stator motor described in;

[0033] Fig.12 Shows Figure 1 A schematic diagram of a second embodiment of the top outlet structure of the dual-stator motor;

[0034] Fig.13 Shows Fig.12 A cross-sectional view of the top outlet of the outlet structure of the dual-stator motor described in;

[0035] Fig.14 Shows Figure 1 A schematic diagram of the rear outgoing wire structure of the dual-stator motor described in;

[0036] Fig.15 Shows Fig.14 A cross-sectional view of the rear outgoing wire of the outgoing wire structure of the dual-stator motor described in;

[0037] Fig.16 Shows Figure 1 A schematic diagram of the front outgoing wire structure of the dual-stator motor described in;

[0038] Fig.17 Shows Fig.16 A cross-sectional view of the front outgoing wire of the outgoing wire structure of the dual-stator motor described in;

[0039] Fig.18 A schematic structural diagram of a second embodiment of the output line structure of the dual-stator motor according to the present invention is shown;

[0040] Fig.19 Shows Fig.18 An exploded view of the output structure of the dual-stator motor described in;

[0041] Fig. 20 Shows Fig.18 A schematic structural diagram of a first embodiment of the terminal fixing member;

[0042] Fig.21 Shows Fig.18 A structural schematic diagram of a second embodiment of the terminal fixing member described in;

[0043] Fig. 22 Shows Fig.18 A schematic diagram of the structure of the wiring positioning block described in;

[0044] Fig.23 Shows Fig.18 A schematic structural diagram of the third connecting member;

[0045] Fig.24 Shows Fig.18 A schematic structural diagram of the fourth connecting member;

[0046] Fig.25 Shows Fig.18 A schematic diagram of the star point connection of the output structure of the dual-stator motor described in;

[0047] Fig.26 Shows Fig.18 A schematic diagram of the parallel connection of the output line structure of the dual-stator motor described in;

[0048] Fig. 27 Shows Fig.18 A schematic diagram of the outlet terminal of the single-side stator described in;

[0049] Fig.28 Shows Fig.18 A schematic diagram of a first embodiment of a top outlet structure of a dual-stator motor;

[0050] Fig.29 Shows Fig.28 A cross-sectional view of the top outlet of the outlet structure of the dual-stator motor described in;

[0051] Fig.30 Shows Fig.18 A schematic diagram of a second embodiment of the top outlet structure of the dual-stator motor;

[0052] Fig.31 Shows Fig.30 A cross-sectional view of the top outlet of the outlet structure of the dual-stator motor described in;

[0053] Fig.32 Shows Fig.18A schematic diagram of the rear outgoing wire structure of the dual-stator motor described in;

[0054] Fig.33 Shows Fig.32 A cross-sectional view of the rear outgoing wire of the outgoing wire structure of the dual-stator motor described in;

[0055] Fig.34 Shows Fig.18 A schematic diagram of the front outgoing wire structure of the dual-stator motor described in;

[0056] Fig.35 Shows Fig.34 A cross-sectional view of the front outgoing wire of the outgoing wire structure of the dual-stator motor described in;

[0057] Fig.36 shows a stereoscopic view of the first connecting terminal according to the present invention;

[0058] Fig.37 shows a front view of the first connecting terminal according to the present invention;

[0059] Fig.38 A perspective view of the second terminal according to the present invention is shown;

[0060] Fig.39 shows a front view of the second terminal according to the present invention;

[0061] Fig.40 A schematic structural diagram of an external cable according to the present invention is shown;

[0062] Fig.41 A schematic structural diagram of the junction box according to the present invention is shown. DETAILED DESCRIPTION

[0063] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0064] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0065] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0066] like Figures 1 to 40 As shown, the outlet structure of the dual-stator motor includes terminal fixing members 100a, 100b, 100c and 100d, a first terminal 200, a second terminal 300, a third terminal 400 and an external cable 500. The terminal fixing members 100a, 100b, 100c and 100d are installed on the dual-stator motor, and the two sides of the terminal fixing members 100a, 100b, 100c and 100d correspond to two stators respectively, that is, each side of the terminal fixing members 100a, 100b, 100c and 100d corresponds to a stator respectively, wherein each side of the terminal fixing members 100a, 100b, 100c and 100d corresponds to a stator. An equal number of first terminal fixing parts 1001 and second terminal fixing parts 1002 are provided on each of the stators, so that the outlet ends of the three windings of the stator on this side are fixed to the first terminal fixing part 1001 through the first terminal 200, and are fixed to the second terminal fixing part 1002 through the second terminal 300, and a third terminal 400 for connecting the external cable 500 is relatively fixed to the second terminal 300 located on one side of the terminal fixing parts 100a, 100b, 100c and 100d, wherein the second terminal fixing part 1002 has an inclination so that the external cable 500 can be wired out from the top, front or back.

[0067] Specifically, the shape of the second terminal 300 is adapted to the second terminal fixing portion 1002. Fig.38 and Fig.39 As shown, the second terminal 300 includes a second terminal sleeve portion 310 and a second terminal abutment portion 320, the second terminal sleeve portion 310 and the second terminal abutment portion 320 are connected, wherein the second terminal sleeve portion 310 is used to sleeve the outlet terminal, and of course, it can also be connected by welding or crimping, and the second terminal abutment portion 320 is used to be fixed on the second terminal fixing portion 1002, and the angle between the second terminal sleeve portion 310 and the second terminal abutment portion 320 is determined by the slope of the second terminal fixing portion 1002 to adapt to the second terminal fixing portion 1002 with a slope. For example, the slope of the second terminal fixing portion 1002 is 15° to 90°, preferably 45°, and at this time the angle between the second terminal sleeve portion 310 and the second terminal abutment portion 320 is 145°.

[0068] like Fig.40 As shown, the third terminal 400 includes a third terminal sleeve portion 410 and a third terminal abutment portion 420, wherein the third terminal sleeve portion 410 and the third terminal abutment portion 420 are connected, wherein the third terminal sleeve portion 410 is used to sleeve the external cable 500, and of course, it can also be connected by welding or crimping, and the third terminal abutment portion 420 is used to be fixed on the second terminal abutment portion 320 of the second terminal 300. The angle between the third terminal sleeve portion 410 and the third terminal abutment portion 420 is 105° to 180°, preferably 145°. It can be seen that the shape of the third terminal 400 can be consistent with that of the second terminal 300.

[0069] More specifically, when the third terminal abutting portion 420 is fixed to the second terminal abutting portion 320, and the third terminal sleeve portion 410 and the second terminal sleeve portion 310 are located on both sides, so that the external cable 500 is vertically arranged, thereby realizing the top outlet of the external cable 500, refer to Fig.10 , 12 , 28 and 30. When the third terminal abutting portion 420 is fixed to the second terminal abutting portion 320, and the third terminal sleeve portion 410 and the second terminal sleeve portion 310 are located on the same side, so that the external cable 500 is arranged horizontally, thereby realizing the front or rear outlet of the external cable 500, refer to Fig.14 , 16 , 32 and 34.

[0070] The first terminal fixing portion 1001 is flat. Fig.36 and Fig.37 As shown, the first terminal 200 includes a first terminal sleeve portion 210 and a first terminal abutment portion 220, the first terminal sleeve portion 210 and the first terminal abutment portion 220 are connected, and the two are vertically arranged, wherein the first terminal sleeve portion 210 is used to sleeve the outlet wire head, and of course, it can also be connected by welding or crimping, and the first terminal abutment portion 220 is used to be fixed on the first terminal fixing portion 1001 to adapt to the planar first terminal fixing portion 1001.

[0071] It should be noted that in a dual-stator motor, the three-term windings of the stators on both sides have two connection modes: series connection and parallel connection. When the two output heads are connected in series, the three-term windings of the stators on both sides are connected in series. When the two output heads are connected in parallel, the three-term windings of the stators on both sides are connected in parallel. The following two embodiments will introduce different output modes of dual-stator motors in parallel and series connection:

[0072] First embodiment

[0073] like Figures 1 to 17 As shown, the outlet structure of the dual-stator motor, the three windings of the stators on both sides are connected in series, which includes terminal fixings 100a and 100b, a first terminal 200, a second terminal 300, a third terminal 400, a first connector 610, a second connector 620 and an external cable 500, the terminal fixings 100a and 100b are installed on the dual-stator motor, and the two sides of the terminal fixings 100a and 100b correspond to two stators respectively, that is, each side of the terminal fixings 100a and 100b corresponds to a stator respectively, wherein the same number of first terminal fixing parts 1001 and second terminal fixing parts 1002 are provided on each side of the terminal fixings 100a and 100b, so that the outlet ends of the three windings of the stator on this side are fixed to the first terminal fixing part 1001 through the first terminal 200, and fixed to the second terminal fixing part 1002 through the second terminal 300;

[0074] The first terminal fixing portion 1001 and the second terminal fixing portion 1002 located on both sides of the terminal fixing members 100a and 100b are respectively arranged diagonally, and every two diagonally arranged first terminal blocks 200 are connected by the first connecting member 610, and the second connecting terminals 300 located on one side of the terminal fixing members 100a and 100b are connected with the second connecting terminals 300. The third terminal 400 for connecting the external cable 500 is also relatively fixed on the second terminal 300 on the other side, wherein the second terminal fixing portion 1002 has an inclination so that the external cable 500 can be connected from the top, front or back.

[0075] like Figures 1 to 3As shown, the dual-stator motor includes a front stator B and a rear stator A, and the terminal fixing members 100a and 100b are installed on the dual-stator motor, and the two sides thereof correspond to the front stator B and the rear stator A respectively. The side of the terminal fixing members 100a and 100b opposite to the front stator B is recorded as the B side, and the side opposite to the rear stator A is recorded as the B side. The B sides of the terminal fixing members 100a and 100b are provided with three first terminal fixing portions 1001 and three second terminal fixing portions 1002, and the two are arranged at intervals. The wire terminal fixing parts 100a and 100b are provided with three first terminal fixing parts 1001 and three second terminal fixing parts 1002 on the A side, and the two are arranged at intervals, and the first terminal fixing part 1001 on the A side is arranged diagonally with the first terminal fixing part 1001 on the B side, and the second terminal fixing part 1002 on the A side is arranged diagonally with the second terminal fixing part 1002 on the B side. It can be seen that the first terminal fixing part 1001 on the A side is the second terminal fixing part 1002 on the B side, and the second terminal fixing part 1002 on the A side is the first terminal fixing part 1001 on the B side. The first terminal fixing part 1001 is a plane, and the second terminal fixing part 1002 has an inclination.

[0076] Specifically, the front stator B and the rear stator A each include three windings U, V and W, wherein each phase winding of the front stator B and the rear stator A has two outgoing wire ends U1 and U2, V1 and V2, W1 and W2, respectively. Fig. 9 , that is, the front stator B and the rear stator A each have six outlets, wherein the outlets U1, V1 and W1 are connected to the second terminal 300, and the outlets U2, V2 and W2 are connected to the first terminal 200, the second terminal 300 is fixed to the second terminal fixing portion 1002, and the first terminal 200 is fixed to the first terminal fixing portion 1001. At this time, the second terminal 300 on the A side and the second terminal 300 on the B side are also arranged diagonally, and the first terminal 200 on the A side and the first terminal 200 on the B side are also arranged diagonally, refer to Figure 3 .

[0077] like Figure 8As shown, every two diagonally disposed first wiring terminals 200 are connected via the first connector 610. Specifically, the number of first wiring terminals 200 installed on the wiring terminal fixtures 100a and 100b is six, and the number of first connectors 610 is three, and each first connector 610 is connected to two adjacent and diagonally disposed first wiring terminals 200 to achieve series connection. At this time, the three first connectors 610 are disposed in parallel with each other.

[0078] like Fig.10 , 12 As shown in FIGS. 14 and 16, a second connecting member 620 is connected between the second connecting terminals 300 located on one side of the terminal fixing members 100a and 100b, and a third connecting terminal 400 for connecting the external cable 500 is relatively fixed on the second connecting terminal 300 on the other side, so that the external cable 500 can be connected from the top, front or back.

[0079] like Fig.10 and Fig.11 As shown, the second connector 620 is connected between the three second wiring terminals 300 located on the B side, and each of the second wiring terminals 300 located on the A side is connected to the external cable 500 through the third wiring terminal 400. Since the second terminal fixing portion 1002 has an inclination, and the third terminal abutting portion 420 abuts against the second terminal abutting portion 320, and the third terminal sleeve portion 410 and the second terminal sleeve portion 310 are located on both sides, the external cable 500 is arranged vertically, thereby realizing that the external cable 500 is connected from the top of the rear side of the double-stator motor.

[0080] like Fig.12 and Fig.13 As shown, the second connector 620 is connected between the three second wiring terminals 300 located on the A side, and each of the second wiring terminals 300 located on the B side is connected to the external cable 500 through the third wiring terminal 400. Since the second terminal fixing portion 1002 has an inclination, and the third terminal abutting portion 420 abuts against the second terminal abutting portion 320, and the third terminal sleeve portion 410 and the second terminal sleeve portion 310 are located on both sides, the external cable 500 is arranged vertically, thereby realizing that the external cable 500 is connected from the top of the front side of the double-stator motor.

[0081] like Fig.14 and Fig.15As shown, the second connector 620 is connected between the three second wiring terminals 300 located on the B side, and each of the second wiring terminals 300 located on the A side is connected to the external cable 500 through the third wiring terminal 400. Since the second terminal fixing portion 1002 has an inclination, and the third terminal abutting portion 420 abuts against the second terminal abutting portion 320, and the third terminal sleeve portion 410 and the second terminal sleeve portion 310 are located on the same side, the external cable 500 is arranged horizontally, thereby realizing that the external cable 500 is connected from the rear side of the double-stator motor.

[0082] like Fig.16 and Fig.17 As shown, the second connector 620 is connected between the three second wiring terminals 300 located on the A side, and each of the second wiring terminals 300 located on the B side is connected to the external cable 500 through the third wiring terminal 400. Since the second terminal fixing portion 1002 has an inclination, and the third terminal abutting portion 420 abuts against the second terminal abutting portion 320, and the third terminal sleeve portion 410 and the second terminal sleeve portion 310 are located on the same side, the external cable 500 is arranged horizontally, thereby realizing that the external cable 500 is connected from the front side of the double-stator motor.

[0083] like Figure 3 , 4 As shown in , 6 and 8, the first avoidance grooves 1003a and 1003b for avoiding the installation of the first connector 610 are provided on the terminal fixing members 100a and 100b, and the first avoidance grooves 1003a and 1003b are located between two diagonally opposite second terminal fixing portions 1002 on both sides, so that the first connector 610 installed in the first avoidance grooves 1003a and 1003b can be connected to two diagonally opposite first wiring terminals 200 at both ends. It can be seen that the shapes of the first avoidance grooves 1003a and 1003b are adapted to the shape of the first connector 610, referring to Figure 6 The first connecting member 610 is in a straight line shape, and the first avoiding grooves 1003a and 1003b are also in a straight line shape. Of course, the first connecting member 610 can also be in other shapes, such as an S shape.

[0084] like Figure 7 , 10 As shown in Figures 12, 14 and 16, the second connecting member 620 includes a second connecting portion 621 and three second connecting branches 622. The three second connecting branches 622 are respectively arranged perpendicular to the second connecting portion 621 and are spaced apart along the length direction of the second connecting portion 621 so that each of the second connecting branches 622 is respectively connected to a corresponding second terminal 300.

[0085] The aforementioned first connecting terminal 200 , second connecting terminal 300 , third connecting terminal 400 , first connecting member 610 and second connecting member 620 are all made of copper material to achieve electrical connection between the two.

[0086] In addition, the first terminal abutting portion 220, the second terminal abutting portion 320, the third terminal abutting portion 420, the first connecting member 610 and the second connecting member 620 can be fixedly connected by bolts. Figure 5 The first terminal fixing portion 1001 is embedded with a first nut 111, so that the first terminal 200 is screwed with the first nut 111 by a bolt and fixed to the first terminal fixing portion 1001. The second terminal fixing portion 1002 is embedded with a second nut 112, so that the second terminal 300 is screwed with the second nut 112 by a bolt and fixed to the second terminal fixing portion 1002. Fig.10 , 12 , 14 and 16, further, the first connector 610, the first wiring terminal 200 and the first terminal fixing portion 1001 can be fixed by a bolt. Further, the second wiring terminal 300, the third wiring terminal 400 and the second terminal fixing portion 1002 can be fixed by a bolt. Further, the second terminal fixing portion 1002, the second wiring terminal 300 and the second connector 620 can be fixed by a bolt.

[0087] like Figure 3 and Figure 5 As shown, the wiring terminal fixing member 100a includes two wiring positioning blocks 110a, each of which is correspondingly installed on a stator, that is, one wiring positioning block 110a is installed on the front stator B and the rear stator A, respectively, and there may be a gap between the two. Wherein, three first terminal fixing parts 1001 and three second terminal fixing parts 1002 are arranged on the wiring positioning block 110a, and the first terminal fixing parts 1001 and the three second terminal fixing parts 1002 are arranged at intervals along the length direction of the wiring positioning block 110a. When the two wiring positioning blocks 110a are installed on the wiring terminal fixing member 100a, the first terminal fixing parts 1001 on both sides are arranged diagonally, and the second terminal fixing parts 1002 on both sides are also arranged diagonally, and the first avoidance groove 1003a is formed between the two diagonal second terminal fixing parts 1002. Wherein, the wiring positioning block 110a can be fixed to the stator by bolts.

[0088] like Figure 4As shown, the terminal fixing member 100b is an integrated structure, a baffle 1004 is arranged between the first terminal fixing portion 1001 and the second terminal fixing portion 1002, the first terminal fixing portions 1001 on both sides are diagonally arranged, the second terminal fixing portions 1002 on both sides are also diagonally arranged, and the first avoidance groove 1003b is formed between the two diagonally arranged second terminal fixing portions 1002.

[0089] like Figure 1 , 4 As shown in FIG. 41 , the outlet structure of the dual-stator motor further includes a junction box 700, and the junction box 700 has a receiving cavity. When the junction box 700 is installed on the dual-stator motor, the terminal fixing members 100a and 100b, the first terminal 200 and the second terminal 300 are located in the receiving cavity. The junction box 700 is provided with a top outlet hole 710 for the top outlet of the external cable 500, and front and rear outlet holes 720 for the front and rear outlets of the external cable 500. When the external cable 500 is at the top outlet, the junction box 700 is fixed to the dual-stator motor by bolts so that the external cable 500 passes through the top outlet hole 710, and finally can be sealed by a waterproof screw sleeve and a sealing plug. When the external cable 500 is connected to the front side, the side of the junction box 700 with the front and rear cable outlet holes 720 is oriented toward the B side so that the external cable 500 passes through the front and rear cable outlet holes 720. When the external cable 500 is connected to the rear side, the side of the junction box 700 with the front and rear cable outlet holes 720 is oriented toward the A side so that the external cable 500 passes through the front and rear cable outlet holes 720.

[0090] The number of the top cable outlet holes 710 and the front and rear cable outlet holes 720 is consistent with the number of the external cables 500 .

[0091] Specifically, the junction box 700 is a rectangular parallelepiped, including a junction box top surface 7001 and a junction box side surface 7002. The junction box top surface 7001 is provided with three top outlet holes 710, and the junction box side surface 7002 is provided with three front and rear outlet holes 720. The junction box top surface 7001 and the junction box side surface 7002 are vertically arranged so that the axes of the top outlet holes 710 and the front and rear outlet holes 720 are vertical.

[0092] Continue to refer Fig.41The junction box 700 is also provided with a locking hole 730 to allow a bolt to lock the third terminal 400 connected to the external cable 500. For example, a screwdriver is passed through the locking hole 730 and acts on the bolt on the third terminal 400 to lock the external cable 500 with the top, front or rear outlet. The locking hole 730 is located between the top outlet hole 710 and the front and rear outlet holes 720.

[0093] Specifically, the junction box 700 includes a junction box inclined surface 7003 , the junction box inclined surface 7003 is located between the junction box top surface 7001 and the junction box side surface 7002 , and the junction box inclined surface 7003 is provided with three locking holes 730 .

[0094] In summary, the first terminal fixing portion 1001 and the second terminal fixing portion 1002 located on both sides of the terminal fixing member 100a and 100b are respectively arranged diagonally, and each two diagonally connected first terminal 200 are connected by the first connector 610 to realize the three-phase winding series connection of the stators on both sides, wherein the second terminal fixing portion 1002 has an inclination, and through the assembly and matching of the first terminal 200, the second terminal 300 and the third terminal 400 at different angles, the external cable 500 is made to be connected in the top, front or back manner. Compared with the prior art, each connection direction corresponds to a set of connection structures, which reduces the number of components, reduces the production cost, and reduces the difficulty of management. There are two ways to connect the external cable from the top, namely, one is located at the top of the A side, and the bolt can be locked and tightened from the oblique upper side of the rear side. The other is located at the top of the B side, and the bolt can be locked and tightened from the oblique upper side of the front side. According to the specific use scenario of the motor, the top connection form that is easy to assemble can be selected.

[0095] Second embodiment

[0096] like Figures 18 to 40As shown, the outlet structure of the dual-stator motor, the three windings of the stators on both sides are connected in parallel, which includes terminal fixings 100c and 100d, a first terminal 200, a second terminal 300, a third terminal 400, a third connector 630, a fourth connector 640 and an external cable 500, the terminal fixings 100c and 100d are installed on the dual-stator motor, the two sides of the terminal fixings 100c and 100d correspond to two stators respectively, and the same number of first terminal fixing parts 1001 and second terminal fixing parts 1002 are provided on each side of the terminal fixings 100c and 100d, so that the outlet ends of the three windings of the stator on this side are fixed to the first terminal fixing part 1001 through the first terminal 200, and fixed to the second terminal fixing part 1002 through the second terminal 300;

[0097] The first terminal fixing portion 1001 and the second terminal fixing portion 1002 located on both sides of the terminal fixing members 100c and 100d are arranged opposite to each other, and multiple first terminal blocks 200 are connected by the third connecting member 630, and two second terminal blocks 300 located on both sides and opposite to each other are connected by a fourth connecting member 640. The fourth connecting member 640 is located on one side of the terminal fixing members 100c and 100d and relatively fixed with a third terminal 400 for connecting the external cable 500, wherein the second terminal fixing portion 1002 has an inclination so that the external cable 500 can be connected from the top, front or back.

[0098] like Figures 18 to 20As shown, the dual-stator motor includes a front stator B and a rear stator A, and the terminal fixing members 100c and 100d are installed on the dual-stator motor, and the two sides thereof correspond to the front stator B and the rear stator A respectively. The side of the terminal fixing members 100c and 100d opposite to the front stator B is recorded as the B side, and the side opposite to the rear stator A is recorded as the A side. The three first terminal fixing parts 1001 and the three second terminal fixing parts 1002 are arranged on the B side of the terminal fixing members 100a and 100b, and the two are arranged at intervals. The three first terminal fixing parts 1001 and the three second terminal fixing parts 1002 are arranged on the A side of the terminal fixing parts 100c and 100d, and the two are arranged at intervals, and the first terminal fixing part 1001 located on the A side is arranged opposite to the first terminal fixing part 1001 located on the B side, and the second terminal fixing part 1002 located on the A side is arranged opposite to the second terminal fixing part 1002 located on the B side. It can be seen that the first terminal fixing part 1001 located on the A side is the first terminal fixing part 1001 on the B side, and the second terminal fixing part 1002 located on the A side is the second terminal fixing part 1002 on the B side. The first terminal fixing part 1001 is a plane, and the second terminal fixing part 1002 has an inclination.

[0099] refer to Fig. 27 , the front stator B and the rear stator A both include three windings U, V and W, wherein each phase winding of the front stator B and the rear stator A has two outlets U1 and U2, V1 and V2, W1 and W2 respectively, that is, the front stator B and the rear stator A both have six outlets, wherein the outlets U1, V1 and W1 are correspondingly connected to the second terminal 300, and the outlets U2, V2 and W2 are correspondingly connected to the first terminal 200, the second terminal 300 is fixed on the second terminal fixing portion 1002, and the first terminal 200 is fixed on the first terminal fixing portion 1001, at this time, the second terminal 300 located on the A side is also arranged opposite to the second terminal 300 located on the B side, and the first terminal 200 located on the A side is also arranged opposite to the first terminal 200 located on the B side, refer to Fig. 20 .

[0100] like Fig.25 As shown, a plurality of the first wiring terminals 200 are connected by the third connecting member 630. Specifically, the number of the first wiring terminals 200 installed on the wiring terminal fixtures 100c and 100d is six, and the number of the third connecting member 630 is one, so as to realize the star point connection.

[0101] like Fig.26As shown, two second wiring terminals 300 located on both sides and opposite to each other are connected by a fourth connecting member 640. Specifically, the number of second wiring terminals 300 installed on the wiring terminal fixing members 100c and 100d is six, and the number of the fourth connecting members 640 is three, and each of the fourth connecting members 640 connects the second wiring terminals 300 on both sides and opposite to each other of the wiring terminal fixing members 100c and 100d to achieve parallel connection. At this time, the three fourth connecting members 640 are arranged in parallel.

[0102] More specifically, refer to Fig.24 The fourth connecting member 640 includes a fourth connecting portion 641 and two fourth connecting branches 642, the two fourth connecting branches 642 are respectively connected to the fourth connecting portion 641, and each of the fourth connecting branches 642 is respectively connected to a second connecting terminal 300, that is, abutted against the second terminal abutting portion 320 of the second connecting terminal 300, referring to Fig.38 It can be seen that the angle between the two fourth connection branches 642 is determined by the slope of the second terminal fixing portion 1002. For example, if the slope of the second terminal fixing portion 1002 is 45°, the angle between the two fourth connection branches 642 is 90°.

[0103] like Fig.28 , 30 As shown in FIGS. 32 and 34 , the fourth connecting member 640 is located on one side of the terminal fixing members 100c and 100d and is relatively fixed with a third terminal 400 for connecting the external cable 500, wherein the second terminal fixing portion 1002 has an inclination so that the external cable 500 can be connected from the top, front or back.

[0104] refer to Fig.28 and Fig.29 Each of the fourth connecting members 640 is located on the B side and is connected to the external cable 500 through the third terminal 400. Specifically, the third terminal abutting portion 420 of the third terminal 400 abuts against the fourth connecting branch 642 located on the B side. Since the second terminal fixing portion 1002 has an inclination and the third terminal sleeve portion 410 is vertically arranged, the external cable 500 is connected from the top of the front side of the dual-stator motor.

[0105] refer to Fig.30 and Fig.31Each of the fourth connecting members 640 is located on the A side and is connected to the external cable 500 through the third terminal 400. Specifically, the third terminal abutting portion 420 of the third terminal 400 abuts against the fourth connecting branch 642 located on the A side. Since the second terminal fixing portion 1002 has an inclination and the third terminal sleeve portion 410 is vertically arranged, the external cable 500 is connected from the top of the rear side of the double-stator motor.

[0106] refer to Fig.32 and Fig.33 As shown, each of the fourth connecting members 640 is located on the A side and is connected to the external cable 500 through the third terminal 400. Specifically, the third terminal abutting portion 420 of the third terminal 400 abuts against the fourth connecting branch 642 located on the A side. Since the second terminal fixing portion 1002 has an inclination and the third terminal sleeve portion 410 is arranged horizontally, the external cable 500 is connected to the rear of the dual-stator motor.

[0107] refer to Fig.34 and Fig.35 As shown, each of the fourth connecting members 640 is located on the B side and is connected to the external cable 500 through the third terminal 400. Specifically, the third terminal abutting portion 420 of the third terminal 400 abuts against the fourth connecting branch 642 located on the B side. Since the second terminal fixing portion 1002 has an inclination and the third terminal sleeve portion 410 is arranged horizontally, the external cable 500 is connected from the front of the dual-stator motor.

[0108] like Fig.21 , 23 As shown in Figures 25 and 25, the third connecting member 630 includes a third connecting portion 631 and six third connecting branches 632, each of which is connected to the third connecting portion 631, and each of which is connected to a first connecting terminal 200, so that the third connecting branch 632 abuts against the first terminal abutting portion 220 of the first connecting terminal 200. Since the first terminal fixing portions 1001 on both sides are arranged opposite to each other, the six third connecting branches 632 are symmetrically arranged on both sides of the third connecting portion 631, and second avoidance grooves 1005c and 1005d are arranged between the two second terminal fixing portions 1002 on both sides to avoid the connection of the third connecting portion 631, so that most of the third connecting portions 631 are located between the two second terminal fixing portions 1002, and are connected to the first connecting terminals 200 on both sides and opposite to each other through the third connecting branches 632.

[0109] The first connecting terminal 200 , the second connecting terminal 300 , the third connecting terminal 400 , the third connecting member 630 and the fourth connecting member 640 are all made of copper material to achieve electrical connection between the two.

[0110] In addition, the first terminal abutting portion 220, the second terminal abutting portion 320, the third terminal abutting portion 420, the third connecting member 630 and the fourth connecting member 640 can be fixedly connected by bolts. Fig. 22 The first terminal fixing portion 1001 is embedded with a first nut 111, so that the first terminal 200 is screwed to the first nut 111 through a bolt and fixed to the first terminal fixing portion 1001. The second terminal fixing portion 1002 is embedded with a second nut 112, so that the second terminal 300 is screwed to the second nut 112 through a bolt and fixed to the second terminal fixing portion 1002. Fig.28 , 30 , 32 and 34, further, the first terminal fixing portion 1001, the first terminal abutting portion 220 and the third connecting member 630 can be fixed by a bolt. Furthermore, the second terminal fixing portion 1002, the second terminal abutting portion 320, the fourth connecting member 640 and the third terminal abutting portion 420 can be fixed by a bolt.

[0111] like Fig. 20 and Fig. 22 As shown, the wiring terminal fixing member 100c includes two wiring positioning blocks 110c, each of which is correspondingly installed on a stator, that is, one wiring positioning block 110c is installed on the front stator B and the rear stator A respectively. The wiring positioning block 110c is provided with three first terminal fixing parts 1001 and three second terminal fixing parts 1002, and the first terminal fixing parts 1001 and the three second terminal fixing parts 1002 are arranged at intervals along the length direction of the wiring positioning block 110c. When the two wiring positioning blocks 110c are installed on the wiring terminal fixing member 100a, the first terminal fixing parts 1001 on both sides are arranged oppositely, and the second terminal fixing parts 1002 on both sides are also arranged oppositely, and there is a gap between the two wiring positioning blocks 110c, that is, the second avoidance groove 1005c is formed. The wiring positioning block 110c can be fixed to the stator by bolts.

[0112] like Fig.21As shown, the terminal fixing member 100d is an integrated structure, the first terminal fixing parts 1001 on both sides are arranged oppositely, the second terminal fixing parts 1002 on both sides are also arranged oppositely, and the second avoidance groove 1005d is formed between the two wiring positioning blocks 110c. The first terminal fixing part 1001 is embedded with a first nut 111, and the second terminal fixing part 1002 is embedded with a second nut 112.

[0113] like Fig.41 As shown, the output line structure of the dual-stator motor also includes a junction box 700. The specific structure of the junction box 700 can refer to the first embodiment, so the beneficial effects of the output line structure of the dual-stator motor of this embodiment brought by the junction box 700 can refer to the above embodiment.

[0114] In summary, the first terminal fixing part 1001 and the second terminal fixing part 1002 located on both sides of the terminal fixing parts 100c and 100d are arranged opposite to each other, and the plurality of first terminal fixing parts 200 are connected by the third connecting part 630, and the two second terminal fixing parts 300 located on both sides and opposite to each other are connected by the fourth connecting part 640, so as to realize the three-phase winding parallel connection of the stators on both sides, wherein the second terminal fixing part 1002 has an inclination, and the first terminal 200, the second terminal 300 and the third terminal 400 are assembled and matched at different angles, so that the external cable 500 can be connected in the top, front or back manner. Compared with the prior art, each direction of connection corresponds to a set of connection structures, which reduces the number of components, reduces the production cost, and reduces the difficulty of management. And there are two ways of top connection of the external cable, namely, one is located at the top of the A side, and the bolt can be locked and tightened from the oblique upper side of the rear side. The other is located at the top of the B side. In this case, the bolts can be locked in and tightened from the upper oblique front side. The top wire outlet form that is easy to assemble can be selected according to the specific usage scenario of the motor.

[0115] In addition, those skilled in the art may also change the shape, structure and material of the terminal fixing according to actual conditions. As long as, on the basis of the above disclosure of the present invention, the same or similar technical solutions as the present invention are adopted, the same or similar technical problems as the present invention are solved, and the same or similar technical effects as the present invention are achieved, they are all within the scope of protection of the present invention, and the specific embodiments of the present invention are not limited to this.

[0116] That is to say, as long as, on the basis of the above disclosure of the present invention, the same or similar technical solutions as the present invention are adopted, the same or similar technical problems as the present invention are solved, and the same or similar technical effects as the present invention are achieved, they all fall within the protection scope of the present invention, and the specific implementation methods of the present invention are not limited to this.

[0117] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0118] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A wire output structure of a series double-stator motor, characterized in that: The invention comprises a terminal fixing member, a first terminal, a second terminal, a third terminal, a first connector, a second connector and an external cable, wherein the terminal fixing member is installed on the dual-stator motor, and the two sides of the terminal fixing member correspond to two stators respectively, wherein an equal number of first terminal fixing parts and second terminal fixing parts are provided on each side of the terminal fixing member, so that the outlet end of the stator on this side is fixed to the first terminal fixing part through the first terminal, and is fixed to the second terminal fixing part through the second terminal; The first terminal fixing parts and the second terminal fixing parts located on both sides of the terminal fixing member are respectively arranged diagonally, and every two diagonally arranged first terminal blocks are connected by the first connecting member, and the second terminal blocks located on one side of the terminal fixing member are connected with the second connecting member, and the second terminal blocks on the other side are relatively fixed with a third terminal for connecting the external cable, wherein the second terminal fixing part has an inclination so that the external cable can be connected from the top, front or back; The second terminal comprises a second terminal sleeve portion and a second terminal abutment portion, and the angle between the second terminal sleeve portion and the second terminal abutment portion is adapted to the inclination of the second terminal fixing portion; The third terminal includes a third terminal sleeve and a third terminal abutment, the third terminal sleeve and the third terminal abutment are connected, wherein the third terminal sleeve is used to connect the external cable, the third terminal abutment is used to be fixed on the second terminal abutment of the second terminal, and the angle between the third terminal sleeve and the third terminal abutment is consistent with the angle between the second terminal sleeve and the second terminal abutment.

2. The wire output structure of the series dual-stator motor according to claim 1, characterized in that: The second terminal sleeve portion is connected to the second terminal abutment portion, wherein the second terminal sleeve portion is used to connect the outlet terminal, and the second terminal abutment portion is used to be fixed on the second terminal fixing portion.

3. The wire output structure of the series dual-stator motor according to claim 2, characterized in that: The third terminal sleeve portion and the second terminal sleeve portion are located on both sides, so that the external cable is arranged vertically, thereby realizing top outlet of the external cable.

4. The wire output structure of the series dual-stator motor according to claim 2, characterized in that: The third terminal sleeve portion and the second terminal sleeve portion are located on the same side, so that the external cable is arranged horizontally, thereby realizing the front or rear outlet of the external cable.

5. The wire output structure of the series dual-stator motor according to claim 1, characterized in that: The first terminal fixing portion is planar; The first terminal comprises a first terminal sleeve portion and a first terminal abutment portion, the first terminal sleeve portion and the first terminal abutment portion are connected and vertically arranged, wherein the first terminal sleeve portion is used to connect the outlet terminal, and the first terminal abutment portion is used to be fixed on the first terminal fixing portion.

6. The wire output structure of the series dual-stator motor according to claim 1, characterized in that: It also includes a junction box, which has a accommodating cavity. When the junction box is installed on the dual-stator motor, the terminal fixing piece is located in the accommodating cavity. The junction box is provided with a top outlet hole for the top outlet of the external cable, and front and rear outlet holes for the front and rear outlets of the external cable.

7. The wire output structure of the series dual-stator motor according to claim 6, characterized in that: The junction box is also provided with a locking hole, and the locking hole is located between the top wire outlet hole and the front and rear wire outlet holes.

8. The wire output structure of the series dual-stator motor according to claim 1, characterized in that: The wiring terminal fixing piece is provided with a first avoidance groove for avoiding the installation of the first connecting piece, and the first avoidance groove is located between two second terminal fixing parts at two diagonal sides.

9. The wire output structure of the series dual-stator motor according to claim 1, characterized in that: The wiring terminal fixing member comprises two wiring positioning blocks, each of which is correspondingly mounted on a stator, and the wiring positioning block is provided with the first terminal fixing portion and the second terminal fixing portion, which are arranged at intervals.

10. The wire output structure of the series dual-stator motor according to claim 1, characterized in that: The terminal fixing piece is an integrated structure, and a baffle is arranged between the first terminal fixing part and the second terminal fixing part.

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