The output structure of the parallel double-stator motor

Abstract

The present invention provides a wire outlet structure of a parallel 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 outlet head of the stator on this side is fixed on the first terminal fixing part through the first terminal, and is fixed on 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 opposite to each other, a plurality of first terminals are connected by a third connecting piece, and two second terminals located on both sides and opposite to each other are connected by a fourth connecting piece, and the fourth connecting piece is located on one side of the terminal fixing piece and is relatively fixed with a third terminal for connecting an external cable, and the second terminal fixing part has an inclination so that the external cable can be wired out 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 double-stator motors, and particularly to an outgoing line structure of a parallel double-stator motor. Background Art

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

[0003] However, different manufacturers or different platforms have different requirements for the outgoing line direction of the motor. Currently, there are three outgoing line methods: top outgoing line, front outgoing line, and rear outgoing line. And for each outgoing line method of the double-stator motor, there is a different outgoing line structure, making the shape of each set of components different. This not only increases the number of components and production costs, but also improves the management difficulty, resulting in a significant decrease in applicability. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides an outgoing line structure of a parallel double-stator motor that can effectively reduce production costs and has strong applicability.

[0005] An outgoing line structure of a parallel double-stator motor includes a terminal fixing member, a first terminal, a second terminal, a third terminal, a third connecting member, a fourth connecting member, and an external cable. The terminal fixing member is installed on the double-stator motor. The two sides of the terminal fixing member respectively correspond to two stators. On each side of the terminal fixing member, an equal number of first terminal fixing parts and second terminal fixing parts are provided, so that the outgoing line heads of the stators on this side are fixed on the first terminal fixing parts through the first terminals, and are fixed on the second terminal fixing parts through the second terminals.

[0006] The first terminal fixing parts and the second terminal fixing parts located on both sides of the terminal fixing member are respectively arranged opposite to each other. The plurality of first terminals are connected by the third connecting member. The two second terminals located on both sides and opposite to each other are connected by a fourth connecting member. The fourth connecting member is also relatively fixed with a third terminal for connecting the external cable on one side of the terminal fixing member. Among them, the second terminal fixing part has an inclination angle, so that the external cable can be led out in a top, front, or rear manner.

[0007] Further, the second terminal includes a second terminal socket part and a second terminal abutting part, the second terminal socket part and the second terminal abutting part are connected, wherein the second terminal socket part is used for connecting the outgoing wire head, the second terminal abutting part is used for being fixed on the second terminal fixing part, and the included angle between the second terminal socket part and the second terminal abutting part is adapted to the slope of the second terminal fixing part;

[0008] The third terminal includes a third terminal socket part and a third terminal abutting part, the third terminal socket part and the third terminal abutting part are connected, wherein the third terminal socket part is used for connecting the external cable, the third terminal abutting part is used for being fixed on the second terminal abutting part of the second terminal, and the included angle between the third terminal socket part and the third terminal abutting part is consistent with the included angle between the second terminal socket part and the second terminal abutting part.

[0009] Further, the fourth connecting member includes a fourth connecting part and two fourth connecting branch parts, the two fourth connecting branch parts are respectively connected to the fourth connecting part, and each fourth connecting branch part is respectively correspondingly connected to one of the second terminals, and the included angle between the two fourth connecting branch parts is adapted to the slope of the second terminal fixing part.

[0010] Further, the third terminal abutting part abuts on the fourth connecting branch part, so that the third terminal socket part is vertically arranged, thereby realizing the top outgoing of the external cable.

[0011] Further, the third terminal abutting part abuts on the fourth connecting branch part, so that the third terminal socket part is horizontally arranged, thereby realizing the front or rear outgoing of the external cable.

[0012] Further, the third connecting member includes a third connecting part and six third connecting branch parts, each third connecting branch part is respectively connected to the third connecting part, and each third connecting branch part is correspondingly connected to one of the first terminals;

[0013] A second avoidance groove for avoiding the connection of the third connecting part is arranged between two opposite second terminal fixing parts on both sides.

[0014] Further, the first terminal fixing part is a plane;

[0015] The first terminal includes a first terminal socket part and a first terminal abutting part, the first terminal socket part and the first terminal abutting part are connected, and the two are perpendicular to each other, wherein the first terminal socket part is used for connecting the outgoing wire head, and the first terminal abutting part is used for being fixed on the first terminal fixing part.

[0016] Further, it further includes a junction box which has an accommodation cavity. When the junction box is installed on the double-stator motor, the terminal fixing member is located in the accommodation 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.

[0017] Further, the junction box is further provided with a locking hole which is located between the top outlet hole and the front and rear outlet holes.

[0018] Further, the terminal fixing member includes two wiring positioning blocks. Each wiring positioning block is correspondingly installed on a stator. The first terminal fixing part and the second terminal fixing part are arranged on the wiring positioning block and are spaced apart.

[0019] Further, the slope of the second terminal fixing part is 45°.

[0020] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0021] The first terminal fixing part and the second terminal fixing part on both sides of the terminal fixing member are relatively arranged respectively. A plurality of the first wiring terminals are connected by the third connecting member. Two second wiring terminals which are located on both sides and are opposite to each other are connected by a fourth connecting member to realize the parallel connection of the three-phase windings of the two side stators. The second terminal fixing part has a slope, and through the assembly and cooperation of the first wiring terminal, the second wiring terminal and the third wiring terminal at different angles, the external cable can be led out in a top, front or rear manner. Compared with a set of lead-out structure corresponding to each lead-out direction in the prior art, the number of components is reduced, the production cost is reduced, the management difficulty is reduced, and the applicability is effectively improved. And there are two top lead-out methods for the external cable. The bolt can be locked and tightened from the rear side or the upper oblique side of the front side, and the top lead-out form which is easy to assemble can be selected according to the specific use scenario of the motor.

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Description of the Drawings

[0023] Figure 1 Fig. shows a schematic structural diagram of a first embodiment of the lead-out structure of the double-stator motor according to the present invention;

[0024] Figure 2 Fig. shows Figure 1 an exploded view of the lead-out structure of the double-stator motor described in

[0025] Figure 3 Fig. shows Figure 1 a schematic structural diagram of a first embodiment of the terminal fixing member described in

[0026] Figure 4 Shows Figure 1 The structural schematic diagram of the second embodiment of the terminal fixing member described in

[0027] Figure 5 Shows Figure 1 The structural schematic diagram of the wiring positioning block described in

[0028] Figure 6 Shows Figure 1 The structural schematic diagram of the first connecting member described in

[0029] Figure 7 Shows Figure 1 The structural schematic diagram of the second connecting member described in

[0030] Figure 8 Shows Figure 1 The schematic diagram of the series connection of the outgoing line structure of the double-stator motor described in

[0031] Figure 9 Shows Figure 1 The schematic diagram of the outgoing line head of the single-sided stator described in

[0032] Figure 10 Shows Figure 1 The schematic diagram of the first embodiment of the top outgoing line of the outgoing line structure of the double-stator motor described in

[0033] Figure 11 Shows Figure 10 The sectional view of the top outgoing line of the outgoing line structure of the double-stator motor described in

[0034] Figure 12 Shows Figure 1 The schematic diagram of the second embodiment of the top outgoing line of the outgoing line structure of the double-stator motor described in

[0035] Figure 13 Shows Figure 12 The sectional view of the top outgoing line of the outgoing line structure of the double-stator motor described in

[0036] Figure 14 Shows Figure 1 The schematic diagram of the rear outgoing line of the outgoing line structure of the double-stator motor described in

[0037] Figure 15 Shows Figure 14 The sectional view of the rear outgoing line of the outgoing line structure of the double-stator motor described in

[0038] Figure 16 Shows Figure 1 The schematic diagram of the front outgoing line of the outgoing line structure of the double-stator motor described in

[0039] Figure 17 shows Figure 16 a front outlet sectional view of the outlet structure of the double-stator motor described in

[0040] Figure 18 a schematic structural diagram of a second embodiment of the outlet structure of the double-stator motor according to the present invention;

[0041] Figure 19 shows Figure 18 an exploded view of the outlet structure of the double-stator motor described in

[0042] Figure 20 shows Figure 18 a schematic structural diagram of a first embodiment of the terminal fixing member described in

[0043] Figure 21 shows Figure 18 a schematic structural diagram of a second embodiment of the terminal fixing member described in

[0044] Figure 22 shows Figure 18 a schematic structural diagram of the wiring positioning block described in

[0045] Figure 23 shows Figure 18 a schematic structural diagram of the third connecting member described in

[0046] Figure 24 shows Figure 18 a schematic structural diagram of the fourth connecting member described in

[0047] Figure 25 shows Figure 18 a schematic diagram of the star connection of the outlet structure of the double-stator motor described in

[0048] Figure 26 shows Figure 18 a schematic diagram of the parallel connection of the outlet structure of the double-stator motor described in

[0049] Figure 27 shows Figure 18 a schematic diagram of the outlet end of the single-sided stator described in

[0050] Figure 28 shows Figure 18 a schematic diagram of a first embodiment of the top outlet of the outlet structure of the double-stator motor described in

[0051] Figure 29 shows Figure 28 a sectional view of the top outlet of the outlet structure of the double-stator motor described in

[0052] Figure 30 shows Figure 18Schematic diagram of the second embodiment of the top wire outlet structure of the double-stator motor described in

[0053] Figure 31 Shows Figure 30 Cross-sectional view of the top wire outlet of the wire outlet structure of the double-stator motor described in

[0054] Figure 32 Shows Figure 18 Schematic diagram of the rear wire outlet of the wire outlet structure of the double-stator motor described in

[0055] Figure 33 Shows Figure 32 Cross-sectional view of the rear wire outlet of the wire outlet structure of the double-stator motor described in

[0056] Figure 34 Shows Figure 18 Schematic diagram of the front wire outlet of the wire outlet structure of the double-stator motor described in

[0057] Figure 35 Shows Figure 34 Cross-sectional view of the front wire outlet of the wire outlet structure of the double-stator motor described in

[0058] Figure 36 Shows a perspective view of the first terminal according to the present invention;

[0059] Figure 37 Shows a front view of the first terminal according to the present invention;

[0060] Figure 38 Shows a perspective view of the second terminal according to the present invention;

[0061] Figure 39 Shows a front view of the second terminal according to the present invention;

[0062] Figure 40 Shows a schematic structural diagram of the external cable according to the present invention;

[0063] Figure 41 Shows a schematic structural diagram of the junction box according to the present invention. Detailed implementation manners

[0064] 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 in the following description are only examples, and other obvious variations can be conceived by those skilled in the art. The basic principles defined in the following description can be applied to other implementation manners, variant schemes, improvement schemes, equivalent schemes, and other technical schemes without departing from the spirit and scope of the present invention.

[0065] Those skilled in the art should understand that in the disclosure of the present invention, the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present invention.

[0066] It can be understood that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of this element can be multiple. The term "a" should not be construed as limiting the quantity.

[0067] As Figures 1 to 40 shown, the lead-out structure of the double-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 double-stator motor. The two sides of the terminal fixing members 100a, 100b, 100c, and 100d respectively correspond to two stators, that is, each side of the terminal fixing members 100a, 100b, 100c, and 100d corresponds to one stator. Equal numbers of first terminal fixing parts 1001 and second terminal fixing parts 1002 are provided on each side of the terminal fixing members 100a, 100b, 100c, and 100d, so that the lead-out ends of the three-phase 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 on the second terminal 300 on one side of the terminal fixing members 100a, 100b, 100c, and 100d. The second terminal fixing part 1002 has an inclination, so that the external cable 500 can lead out in a top, front, or rear manner.

[0068] Specifically, the shape of the second terminal 300 is adapted to the second terminal fixing part 1002. Refer to Figure 38 and Figure 39As shown, the second terminal 300 includes a second terminal socket part 310 and a second terminal abutting part 320. The second terminal socket part 310 and the second terminal abutting part 320 are connected. The second terminal socket part 310 is used for sleeving the outgoing wire end. Of course, connection can also be made by means such as welding or crimping. The second terminal abutting part 320 is used for being fixed on the second terminal fixing part 1002. The included angle between the second terminal socket part 310 and the second terminal abutting part 320 is determined by the slope of the second terminal fixing part 1002 to adapt to the second terminal fixing part 1002 with a slope. For example, the slope of the second terminal fixing part 1002 is 15° - 90°, preferably 45°. At this time, the included angle between the second terminal socket part 310 and the second terminal abutting part 320 is 145°.

[0069] As Figure 40 shown, the third terminal 400 includes a third terminal socket part 410 and a third terminal abutting part 420. The third terminal socket part 410 and the third terminal abutting part 420 are connected. The third terminal socket part 410 is used for sleeving the external cable 500. Of course, connection can also be made by means such as welding or crimping. The third terminal abutting part 420 is used for being fixed on the second terminal abutting part 320 of the second terminal 300. The included angle between the third terminal socket part 410 and the third terminal abutting part 420 is 105° - 180°, preferably 145°. It can be seen that the shape of the third terminal 400 and the second terminal 300 can be the same.

[0070] More specifically, when the third terminal abutting part 420 is fixed on the second terminal abutting part 320, and the third terminal socket part 410 and the second terminal socket part 310 are on both sides, so that the external cable 500 is arranged vertically, thereby realizing the top outgoing of the external cable 500. Refer to Figure 10 、 12 、28 and 30. When the third terminal abutting part 420 is fixed on the second terminal abutting part 320, and the third terminal socket part 410 and the second terminal socket part 310 are on the same side, so that the external cable 500 is arranged horizontally, thereby realizing the front or rear outgoing of the external cable 500. Refer to Figure 14 、 16 、32 and 34.

[0071] The first terminal fixing part 1001 is in a plane, as Figure 36 and Figure 37As shown, the first terminal 200 includes a first terminal socket portion 210 and a first terminal abutting portion 220. The first terminal socket portion 210 and the first terminal abutting portion 220 are connected and are perpendicular to each other. The first terminal socket portion 210 is used for socketing the outgoing wire end. Of course, connection can also be made by means such as welding or crimping. The first terminal abutting portion 220 is used for being fixed on the first terminal fixing portion 1001 to adapt to the planar first terminal fixing portion 1001.

[0072] It should be noted that in a double-stator motor, there are two connection methods, series connection and parallel connection, between the outgoing wire ends of the three-phase windings of the stators on both sides. When the outgoing wire ends adopt the series connection method, that is, the three-phase windings of the stators on both sides are connected in series. When the outgoing wire ends adopt the parallel connection method, that is, the three-phase windings of the stators on both sides are connected in parallel. The following will introduce different outgoing wire methods of the double-stator motor in the parallel and series cases through two embodiments:

[0073] First Embodiment

[0074] As Figures 1 to 17 shown, for the outgoing wire structure of the double-stator motor, the three-phase windings of the stators on both sides are connected in series. It includes terminal fixing members 100a and 100b, a first terminal 200, a second terminal 300, a third terminal 400, a first connecting member 610, a second connecting member 620, and an external cable 500. The terminal fixing members 100a and 100b are installed on the double-stator motor. The two sides of the terminal fixing members 100a and 100b respectively correspond to the two stators, that is, each side of the terminal fixing members 100a and 100b corresponds to one stator. Equal numbers of first terminal fixing portions 1001 and second terminal fixing portions 1002 are provided on each side of the terminal fixing members 100a and 100b, so that the outgoing wire ends of the three-phase windings of the stator on this side are fixed on the first terminal fixing portion 1001 through the first terminal 200 and are fixed on the second terminal fixing portion 1002 through the second terminal 300;

[0075] The first terminal fixing parts 1001 and the second terminal fixing parts 1002 on both sides of the terminal fixing members 100a and 100b are respectively arranged diagonally. Each two diagonally arranged first terminals 200 are connected by the first connecting member 610. A second connecting member 620 is connected between the second terminals 300 on one side of the terminal fixing members 100a and 100b. A third terminal 400 for connecting the external cable 500 is relatively fixed on the second terminal 300 on the other side. The second terminal fixing part 1002 has an inclination angle so that the external cable 500 can be led out in a top, front or rear manner.

[0076] As Figures 1 to 3 shown, the double-stator motor includes a front stator B and a rear stator A. The terminal fixing members 100a and 100b are installed on the double-stator motor, and their two sides respectively correspond to the front stator B and the rear stator A. The side surfaces of the terminal fixing members 100a and 100b opposite to the front stator B are denoted as the B side, and the side surfaces opposite to the rear stator A are denoted as the A side. Three first terminal fixing parts 1001 and 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. Three first terminal fixing parts 1001 and three second terminal fixing parts 1002 are arranged on the A side of the terminal fixing members 100a and 100b, and the two are arranged at intervals. The first terminal fixing part 1001 on the A side and the first terminal fixing part 1001 on the B side are arranged diagonally, and the second terminal fixing part 1002 on the A side and the second terminal fixing part 1002 on the B side are arranged diagonally. It can be seen that for the first terminal fixing part 1001 on the A side, the corresponding B side is the second terminal fixing part 1002, and for the second terminal fixing part 1002 on the A side, the corresponding B side is the first terminal fixing part 1001. The first terminal fixing part 1001 is a plane, and the second terminal fixing part 1002 has an inclination angle.

[0077] Specifically, both the front stator B and the rear stator A include three-phase windings U, V, and W. Each phase winding of the front stator B and the rear stator A has two lead-out ends U1 and U2, V1 and V2, W1 and W2 respectively. Refer to Figure 9, that is, both the front stator B and the rear stator A have six lead-out terminals. Among them, the lead-out terminals U1, V1, and W1 are correspondingly connected to the second terminal 300, and the lead-out terminals U2, V2, and W2 are correspondingly connected to the first terminal 200. The second terminal 300 is fixed on the second terminal fixing part 1002, and the first terminal 200 is fixed on the first terminal fixing part 1001. At this time, the second terminal 300 on the A side and the second terminal 300 on the B side are also diagonally arranged, and the first terminal 200 on the A side and the first terminal 200 on the B side are also diagonally arranged. Refer to Figure 3 .

[0078] As Figure 8 shown, every two diagonally arranged first terminals 200 are connected by the first connecting member 610. Specifically, the number of first terminals 200 installed on the terminal fixing members 100a and 100b is six. At this time, the number of the first connecting members 610 is three, and each first connecting member 610 is connected to two adjacent and diagonally arranged first terminals 200 to achieve series connection. At this time, the three first connecting members 610 are arranged in parallel with each other.

[0079] As Figure 10 , 12 , 14 and 16 shown, the second terminals 300 on one side of the terminal fixing members 100a and 100b are connected by the second connecting member 620, and a third terminal 400 for connecting the external cable 500 is relatively fixed on the second terminal 300 on the other side, so that the external cable 500 can be led out in a top, front or rear manner.

[0080] As Figure 10 and Figure 11 shown, the three second terminals 300 on the B side are connected by the second connecting member 620, and each second terminal 300 on the A side is connected to the external cable 500 through the third terminal 400. Since the second terminal fixing part 1002 has a slope, and the third terminal abutting part 420 abuts on the second terminal abutting part 320, and the third terminal socket part 410 and the second terminal socket part 310 are located on both sides, so that the external cable 500 is vertically arranged, thereby realizing the external cable 500 leading out from the top at the rear of the double-stator motor.

[0081] As Figure 12 and Figure 13As shown, a second connecting member 620 is connected between the three second terminal blocks 300 on the A side, and each of the second terminal blocks 300 on the B side is connected to the external cable 500 through the third terminal block 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 socket portion 410 and the second terminal socket portion 310 are located on both sides, so that the external cable 500 is arranged vertically, thereby realizing the external cable 500 to exit from the top of the front side of the double-stator motor.

[0082] As Figure 14 and Figure 15 shown, a second connecting member 620 is connected between the three second terminal blocks 300 on the B side, and each of the second terminal blocks 300 on the A side is connected to the external cable 500 through the third terminal block 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 socket portion 410 and the second terminal socket portion 310 are located on the same side, so that the external cable 500 is arranged horizontally, thereby realizing the external cable 500 to exit from the rear side of the double-stator motor.

[0083] As Figure 16 and Figure 17 shown, a second connecting member 620 is connected between the three second terminal blocks 300 on the A side, and each of the second terminal blocks 300 on the B side is connected to the external cable 500 through the third terminal block 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 socket portion 410 and the second terminal socket portion 310 are located on the same side, so that the external cable 500 is arranged horizontally, thereby realizing the external cable 500 to exit from the front side of the double-stator motor.

[0084] As Figure 3 、 4 、6 and 8 shown, first avoiding grooves 1003a and 1003b for avoiding the installation of the first connecting member 610 are provided on the terminal fixing members 100a and 100b, and the first avoiding grooves 1003a and 1003b are located between two second terminal fixing portions 1002 which are diagonal to each other on both sides, so that both ends of the first connecting member 610 installed in the first avoiding grooves 1003a and 1003b can be connected to two diagonal first terminal blocks 200. It can be seen that the shapes of the first avoiding grooves 1003a and 1003b are adapted to the shape of the first connecting member 610, refer to Figure 6, the first connecting member 610 is in a straight shape, and the first avoiding grooves 1003a and 1003b are also in a straight shape. Of course, the first connecting member 610 can also be in other shapes, such as an S shape, etc.

[0085] As Figure 7 , 10 , as shown in 12, 14 and 16, the second connecting member 620 includes a second connecting portion 621 and three second connecting branch portions 622. The three second connecting branch portions 622 are respectively perpendicular to the second connecting portion 621 and are spaced along the length direction of the second connecting portion 621, so that each second connecting branch portion 622 is respectively connected to one of the second wiring terminals 300.

[0086] The aforementioned first wiring terminal 200, second wiring terminal 300, third wiring terminal 400, the first connecting member 610 and the second connecting member 620 are all made of copper material to achieve their electrical connection.

[0087] 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 all be fixedly connected by bolts. Specifically, referring to Figure 5 , a first nut 111 is embedded in the first terminal fixing portion 1001, so that the first wiring terminal 200 is screwed to the first nut 111 by a bolt and fixed on the first terminal fixing portion 1001. A second nut 112 is embedded in the second terminal fixing portion 1002, so that the second wiring terminal 300 is screwed to the second nut 112 by a bolt and fixed on the second terminal fixing portion 1002. Referring to Figure 10 , 12 , 14 and 16, further, the first connecting member 610, the first wiring terminal 200 and the first terminal fixing portion 1001 can be fixed by one bolt. Further, the second wiring terminal 300, the third wiring terminal 400 and the second terminal fixing portion 1002 can be fixed by one bolt. Even further, the second terminal fixing portion 1002, the second wiring terminal 300 and the second connecting member 620 can be fixed by one bolt.

[0088] As Figure 3 and Figure 5As shown, the terminal fixing member 100a includes two wiring positioning blocks 110a. Each wiring positioning block 110a 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. Among them, three first terminal fixing parts 1001 and three second terminal fixing parts 1002 are provided on the wiring positioning block 110a. 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 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 a first avoidance groove 1003a is formed between the two second terminal fixing parts 1002 that are diagonally arranged. The wiring positioning block 110a can be fixed to the stator by bolts.

[0089] As Figure 4 shown, the terminal fixing member 100b is an integral structure. A baffle 1004 is provided between the first terminal fixing part 1001 and the second terminal fixing part 1002. 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 a first avoidance groove 1003b is formed between the two second terminal fixing parts 1002 that are diagonally arranged.

[0090] As Figure 1 、 4 and 41 shown, the wire outlet structure of the double-stator motor further includes a junction box 700. The junction box 700 has a receiving cavity. When the junction box 700 is installed on the double-stator motor, the terminal fixing members 100a and 100b, the first terminal 200 and the second terminal 300 are located in the receiving cavity. A top wire outlet hole 710 for the top wire outlet of the external cable 500 and a front and rear wire outlet holes 720 for the front and rear wire outlets of the external cable 500 are provided on the junction box 700. When the external cable 500 is for top wire outlet, the junction box 700 is fixed to the double-stator motor by bolts, so that the external cable 500 passes through the top wire outlet hole 710, and finally can be sealed by a waterproof bushing and a sealing plug. When the external cable 500 is for front side wire outlet, the side of the junction box 700 where the front and rear wire outlet holes 720 are opened faces the B side, so that the external cable 500 passes through the front and rear wire outlet holes 720. When the external cable 500 is for rear side wire outlet, the side of the junction box 700 where the front and rear wire outlet holes 720 are opened faces the A side, so that the external cable 500 passes through the front and rear wire outlet holes 720.

[0091] The number of the top wire outlet holes 710 and the front and rear wire outlet holes 720 is the same as the number of the external cables 500 respectively.

[0092] Specifically, the junction box 700 is in the shape of a cuboid and includes a junction box top surface 7001 and a junction box side surface 7002. Three of the top wire outlet holes 710 are provided on the junction box top surface 7001, and three of the front and rear wire outlet holes 720 are provided on the junction box side surface 7002. The junction box top surface 7001 and the junction box side surface 7002 are vertically arranged so that the axes of the top wire outlet holes 710 and the front and rear wire outlet holes 720 are perpendicular.

[0093] Continue to refer to Figure 41 , a locking hole 730 is also provided on the junction box 700 to lock the third terminal 400 connected to the external cable 500 by a bolt. 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 top, front or rear wire outlet. The locking hole 730 is located between the top wire outlet holes 710 and the front and rear wire outlet holes 720.

[0094] 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 three of the locking holes 730 are provided on the junction box inclined surface 7003.

[0095] In summary, the first terminal fixing parts 1001 and the second terminal fixing parts 1002 on both sides of the terminal fixing parts 100a and 100b are respectively arranged diagonally. Each two diagonal first terminals 200 are connected by the first connecting piece 610 to realize the series connection of the three-phase windings of the two-side stators. The second terminal fixing part 1002 has an inclination, and through the assembly and cooperation of the first terminal 200, the second terminal 300 and the third terminal 400 at different angles, the external cable 500 is led out in a top, front or rear manner. Compared with the prior art in which each wire outlet direction corresponds to a set of wire outlet structures, the number of components is reduced, the production cost is reduced, and the management difficulty is reduced. And there are two top wire outlet methods for the external cable. One is located at the top of side A. At this time, the bolt can be locked in from the upper rear side diagonally. The other is located at the top of side B. At this time, the bolt can be locked in from the upper front side diagonally. The top wire outlet form that is easy to assemble can be selected according to the specific use scenario of the motor.

[0096] Second Embodiment

[0097] As Figures 18 to 40As shown, for the lead-out structure of the double-stator motor, the three-phase windings of the two stators on both sides are connected in parallel. It includes terminal fixing parts 100c and 100d, a first terminal 200, a second terminal 300, a third terminal 400, a third connecting part 630, a fourth connecting part 640, and an external cable 500. The terminal fixing parts 100c and 100d are installed on the double-stator motor. The two sides of the terminal fixing parts 100c and 100d respectively correspond to the two stators. On each side of the terminal fixing parts 100c and 100d, there are an equal number of first terminal fixing parts 1001 and second terminal fixing parts 1002, so that the lead-out ends of the three-phase 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.

[0098] The first terminal fixing parts 1001 and the second terminal fixing parts 1002 located on both sides of the terminal fixing parts 100c and 100d are respectively arranged oppositely. The multiple first terminals 200 are connected through the third connecting part 630. The two second terminals 300 located on both sides and opposite to each other are connected through a fourth connecting part 640. The fourth connecting part 640 is also relatively fixed with a third terminal 400 for connecting the external cable 500 on one side of the terminal fixing parts 100c and 100d. Among them, the second terminal fixing part 1002 has an inclination so that the external cable 500 can lead out in a top, front, or rear manner.

[0099] As Figures 18 to 20As shown, the double-stator motor includes a front stator B and a rear stator A. The terminal fixing members 100c and 100d are installed on the double-stator motor, and their two sides respectively correspond to the front stator B and the rear stator A. The side of the terminal fixing members 100c and 100d opposite to the front stator B is denoted as the B side, and the side opposite to the rear stator A is denoted as the A side. Three of the first terminal fixing portions 1001 and three of the second terminal fixing portions 1002 are provided on the B side of the terminal fixing members 100a and 100b, and the two are arranged at intervals. Three of the first terminal fixing portions 1001 and three of the second terminal fixing portions 1002 are provided on the A side of the terminal fixing members 100c and 100d, and the two are arranged at intervals. The first terminal fixing portion 1001 on the A side is arranged opposite to the first terminal fixing portion 1001 on the B side, and the second terminal fixing portion 1002 on the A side is arranged opposite to the second terminal fixing portion 1002 on the B side. It can be seen that for the first terminal fixing portion 1001 on the A side, the corresponding B side is the first terminal fixing portion 1001, and for the second terminal fixing portion 1002 on the A side, the corresponding B side is the second terminal fixing portion 1002. The first terminal fixing portion 1001 is a plane, and the second terminal fixing portion 1002 has a slope.

[0100] Reference Figure 27 , both the front stator B and the rear stator A include three-phase windings U, V, and W. Each phase winding of the front stator B and the rear stator A respectively has two lead-out ends U1 and U2, V1 and V2, W1 and W2, that is, both the front stator B and the rear stator A have six lead-out ends. Among them, the lead-out ends U1, V1, and W1 are correspondingly connected to the second terminal 300, and the lead-out ends 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 on the A side is also arranged opposite to the second terminal 300 on the B side, and the first terminal 200 on the A side is also arranged opposite to the first terminal 200 on the B side. Reference Figure 20 .

[0101] As Figure 25 shown, the multiple first terminals 200 are connected by the third connecting member 630. Specifically, the number of the first terminals 200 installed on the terminal fixing members 100c and 100d is six. At this time, the number of the third connecting members 630 is one to achieve star connection.

[0102] As Figure 26As shown, two second terminal connectors 300 that are located on both sides and opposite to each other are connected by a fourth connecting member 640. Specifically, the number of second terminal connectors 300 installed on the terminal fixing members 100c and 100d is six. At this time, the number of fourth connecting members 640 is three. Each fourth connecting member 640 connects the second terminal connectors 300 that are located on both sides and opposite to each other on the terminal fixing members 100c and 100d to achieve a parallel connection. At this time, the three fourth connecting members 640 are arranged in parallel.

[0103] More specifically, referring to Figure 24 , the fourth connecting member 640 includes a fourth connecting portion 641 and two fourth connecting branch portions 642. The two fourth connecting branch portions 642 are respectively connected to the fourth connecting portion 641, and each fourth connecting branch portion 642 is respectively connected to a second terminal connector 300, that is, abuts against the second terminal abutting portion 320 of the second terminal connector 300. Referring to Figure 38 , it can be seen that the included angle between the two fourth connecting branch portions 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 included angle between the two fourth connecting branch portions 642 is 90°.

[0104] As shown in Figure 28 , 30 , 32 and 34, a third terminal connector 400 for connecting the external cable 500 is relatively fixed on one side of the terminal fixing members 100c and 100d of the fourth connecting member 640. The second terminal fixing portion 1002 has a slope so that the external cable 500 can be led out in a top, front or rear manner.

[0105] Referring to Figure 28 and Figure 29 , each fourth connecting member 640 is connected to the external cable 500 through the third terminal connector 400 on the B side. Specifically, the third terminal abutting portion 420 of the third terminal connector 400 abuts against the fourth connecting branch portion 642 on the B side. Since the second terminal fixing portion 1002 has a slope and the third terminal socket portion 410 is arranged vertically, the external cable 500 is led out from the top of the front side of the double-stator motor.

[0106] Referring to Figure 30 and Figure 31, each of the fourth connectors 640 on the A side is respectively connected to the external cable 500 through the third terminal block 400. Specifically, the third terminal abutting portion 420 of the third terminal block 400 abuts against the fourth connection branch portion 642 on the A side. Since the second terminal fixing portion 1002 has an inclination and the third terminal socket portion 410 is arranged vertically, the external cable 500 is led out from the top at the rear side of the double-stator motor.

[0107] Reference Figure 32 and Figure 33 As shown in the references Figure 32 and Figure 33 , each of the fourth connectors 640 on the A side is respectively connected to the external cable 500 through the third terminal block 400. Specifically, the third terminal abutting portion 420 of the third terminal block 400 abuts against the fourth connection branch portion 642 on the A side. Since the second terminal fixing portion 1002 has an inclination and the third terminal socket portion 410 is arranged horizontally, the external cable 500 is led out from the rear of the double-stator motor.

[0108] Reference Figure 34 and Figure 35 As shown in the references Figure 34 and Figure 35 , each of the fourth connectors 640 on the B side is respectively connected to the external cable 500 through the third terminal block 400. Specifically, the third terminal abutting portion 420 of the third terminal block 400 abuts against the fourth connection branch portion 642 on the B side. Since the second terminal fixing portion 1002 has an inclination and the third terminal socket portion 410 is arranged horizontally, the external cable 500 is led out from the front of the double-stator motor.

[0109] As Figure 21 , 23 and 25 shown, the third connector 630 includes a third connection portion 631 and six third connection branch portions 632. Each third connection branch portion 632 is respectively connected to the third connection portion 631, and each third connection branch portion 632 correspondingly connects to one of the first terminal blocks 200 so that the third connection branch portion 632 abuts against the first terminal abutting portion 220 of the first terminal block 200. Since the first terminal fixing portions 1001 on both sides are oppositely arranged, the six third connection branch portions 632 are respectively symmetrically arranged in pairs on both sides of the third connection portion 631, and second avoidance grooves 1005c and 1005d for avoiding the connection of the third connection portion 631 are arranged between the two relatively second terminal fixing portions 1002 on both sides, so that most of the third connection portions 631 are located between the two second terminal fixing portions 1002 and are connected to the first terminal blocks 200 on both sides and opposite to each other through the third connection branch portions 632.

[0110] The aforementioned first terminal 200, second terminal 300, third terminal 400, the third connecting member 630 and the fourth connecting member 640 are all made of copper material to achieve their electrical connection.

[0111] 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 all be fixedly connected by bolts. Specifically, referring to Figure 22 , a first nut 111 is embedded in the first terminal fixing portion 1001, so that the first terminal 200 is screwed to the first nut 111 by a bolt and fixed on the first terminal fixing portion 1001. A second nut 112 is embedded in the second terminal fixing portion 1002, so that the second terminal 300 is screwed to the second nut 112 by a bolt and fixed on the second terminal fixing portion 1002. As Figure 28 , 30 , 32 and 34 show, further, the first terminal fixing portion 1001, the first terminal abutting portion 220 and the third connecting member 630 can be fixed by one bolt. Further still, 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 one bolt.

[0112] As Figure 20 and Figure 22 show, the terminal fixing member 100c includes two wiring positioning blocks 110c, and each wiring positioning block 110c is correspondingly installed on a stator, that is, one wiring positioning block 110c is installed on each of the front stator B and the rear stator A. Three first terminal fixing portions 1001 and three second terminal fixing portions 1002 are provided on the wiring positioning block 110c, and the first terminal fixing portion 1001 and the three second terminal fixing portions 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 terminal fixing member 100a, the first terminal fixing portions 1001 on both sides are arranged oppositely, the second terminal fixing portions 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 fixedly connected to the stator by bolts.

[0113] As Figure 21As shown, the terminal fixing member 100d is of an integral structure. 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 a second avoidance groove 1005d is formed between the two wiring positioning blocks 110c. A first nut 111 is embedded in the first terminal fixing part 1001, and a second nut 112 is embedded in the second terminal fixing part 1002.

[0114] As Figure 41 shown, the wire outlet structure of the double-stator motor further includes a junction box 700. The specific structure of the junction box 700 can refer to the first embodiment. Therefore, the beneficial effects brought by the wire outlet structure of the double-stator motor in this embodiment refer to the above-mentioned embodiment.

[0115] In summary, the first terminal fixing parts 1001 and the second terminal fixing parts 1002 located on both sides of the terminal fixing members 100c and 100d are respectively arranged oppositely. The plurality of first wiring terminals 200 are connected by the third connecting member 630. The two second wiring terminals 300 located on both sides and opposite to each other are connected by a fourth connecting member 640 to realize the parallel connection of the three-phase windings of the two stators. The second terminal fixing part 1002 has an inclination, and through the assembly and cooperation of the first wiring terminal 200, the second wiring terminal 300 and the third wiring terminal 400 at different angles, the external cable 500 is led out in a top, front or rear manner. Compared with the prior art where each wire outlet direction corresponds to a set of wire outlet structures, the number of components is reduced, the production cost is lowered, and the management difficulty is reduced. And there are two ways to lead out the external cable at the top, that is, one is located at the top of side A, and at this time the bolt can be locked and tightened from the upper rear side. The other is located at the top of side B, and at this time the bolt can be locked and tightened from the upper front side. The top wire outlet form that is easy to assemble can be selected according to the specific use scenario of the motor.

[0116] In addition, those skilled in the art can also change the shape, structure and material of the terminal fixing member according to the actual situation. As long as on the basis of the above disclosure of the present invention, the same or similar technical solutions as those of the present invention are adopted, the same or similar technical problems as those of the present invention are solved, and the same or similar technical effects as those of the present invention are achieved, they all fall within the protection scope of the present invention. The specific implementation manners of the present invention are not limited thereto.

[0117] 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 those of the present invention are adopted, the same or similar technical problems as those of the present invention are solved, and the same or similar technical effects as those of the present invention are achieved, they all fall within the protection scope of the present invention. The specific implementation manners of the present invention are not limited thereto.

[0118] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0119] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and illustrated in the embodiments, and without departing from the said principles, the embodiments of the present invention can have any deformation or modification.

Claims

1. A wire output structure of a parallel dual-stator motor, characterized in that: The invention comprises a terminal fixing member, a first terminal, a second terminal, a third terminal, a third connector, a fourth connector and an external cable, wherein the terminal fixing member is installed on the double-stator motor, and the two sides of the terminal fixing member correspond to two stators respectively, and 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 arranged opposite to each other, a plurality of the first terminal fixing parts are connected by the third connecting member, and two second terminal fixing parts located on both sides and opposite to each other are connected by a fourth connecting member, and the fourth connecting member is located on one side of the terminal fixing member and 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 parallel dual-stator motor according to claim 1, characterized in that: 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 terminal, and the second terminal abutment portion is used to be fixed to the second terminal fixing portion.

3. The wire output structure of the parallel dual-stator motor according to claim 2, characterized in that: The fourth connecting member includes a fourth connecting portion and two fourth connecting branches, the two fourth connecting branches are respectively connected to the fourth connecting portion, and each of the fourth connecting branches is respectively connected to a corresponding second connecting terminal, and the angle between the two fourth connecting branches is adapted to the inclination of the second terminal fixing portion.

4. The wire output structure of the parallel dual-stator motor according to claim 3, characterized in that: The third terminal abutting portion abuts against the fourth connecting branch, so that the third terminal sleeve portion is vertically arranged, thereby realizing the top outlet of the external cable.

5. The wire output structure of the parallel dual-stator motor according to claim 3, characterized in that: The third terminal abutting portion abuts against the fourth connecting branch, so that the third terminal sleeve portion is arranged horizontally, thereby realizing the front or rear outlet of the external cable.

6. The wire output structure of the parallel dual-stator motor according to claim 1, characterized in that: The third connecting member includes a third connecting portion and six third connecting branches, each of the third connecting branches is respectively connected to the third connecting portion, and each of the third connecting branches is correspondingly connected to one of the first connecting terminals; A second avoiding groove for avoiding the connection of the third connecting part is arranged between two second terminal fixing parts opposite to each other on both sides.

7. The wire output structure of the parallel 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.

8. The wire output structure of the parallel 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.

9. The wire output structure of the parallel dual-stator motor according to claim 8, 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.

10. The wire output structure of the parallel dual-stator motor according to claim 1, characterized in that: The inclination of the second terminal fixing portion is 45°.

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