Motor wire harness fixing structure, motor and vehicle

Abstract

The utility model provides a motor wire harness fixing structure, a motor and a vehicle. The motor wire harness fixing structure provided by the utility model comprises a protection seat and a fixing seat, the protection base and the fixing base jointly form a wire penetrating cavity for a wire harness to penetrate through, and the fixing base is provided with a third fastening hole used for fixing a wiring terminal connected with the wire harness. According to the motor wire harness fixing structure, the three-phase wire in the motor can be prevented from being scratched by the motor shell to a certain extent.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a motor wire harness fixing structure, a motor applying the motor wire harness fixing structure and a vehicle applying the motor. BACKGROUND

[0002] In the motor of the vehicle, the three-phase wire refers to three wires that provide three-phase alternating current for the motor, which transmit the three-phase alternating current from the power supply to the stator winding of the motor, thereby driving the motor to operate.

[0003] In the related art, the motor includes a shell, an armature cavity and a wiring cavity are formed inside the shell, the armature cavity and the wiring cavity are communicated through a wiring hole formed on the shell, an armature is installed in the armature cavity, and three-phase wires are connected to the armature, the other end of the three-phase wires passes through the wiring hole, and the wiring terminals of the three-phase wires are fixed in the wiring cavity.

[0004] However, in the above motor, since the shell is made of metal material and has a large surface roughness, the three-phase wires may be scratched by the hole wall of the wiring hole when passing through the wiring hole, so that the electrical performance of the three-phase wires is affected, and the safety and use performance of the motor as a whole are reduced. Invention content

[0005] The motor wire harness fixing structure, the motor and the vehicle provided by the embodiments of the present application can avoid the three-phase wires of the motor from being scratched by the motor shell, so that the three-phase wires have good electrical performance, the use stability and safety of the motor are improved, and the use performance of the vehicle is improved.

[0006] In a first aspect, the present application provides a motor wire harness fixing structure, which includes a protection seat and a fixing seat; the protection seat and the fixing seat jointly form a wire passing cavity for the wire harness to pass through, and the fixing seat is provided with a third fastening hole for fixing a wiring terminal connected to the wire harness.

[0007] As an optional implementation, the protection seat includes a protection main body and a wire guide part; the protection main body is used for detachable connection with the motor shell; the wire guide part is connected to the protection main body, and the wire passing cavity includes a first cavity wall formed on the wire guide part.

[0008] As an optional implementation, the protection main body is connected with the motor shell through a first bolt, and the protection main body is provided with a first fastening hole for the bolt rod of the first bolt to pass through; a first bushing is embedded in the first fastening hole, and the first bushing is connected with the bolt rod of the first bolt in a matched manner.

[0009] As an optional implementation, the protective body is further provided with a receiving groove in communication with the first fastening hole; the receiving groove has a receiving space for accommodating the head of the first bolt.

[0010] As an optional implementation, the first cavity wall is in a semicircular shape matching the profile shape of the wire harness, and gaps are formed between the hole wall of the first cavity wall and the outer surface of the wire and between the first cavity wall and the outer surface of the terminal, and the size of the gaps in the radial direction of the first cavity wall is greater than or equal to 2 mm.

[0011] As an optional implementation, the protective seat has a plurality of first cavity walls spaced and uniformly distributed, and the distance between the adjacent positions of two adjacent first cavity walls is greater than or equal to 10 mm.

[0012] As an optional implementation, the fixing seat comprises a fixing part and a mounting part connected together; the fixing part is used for detachably connecting with the motor shell, and the threading cavity comprises a second cavity wall formed on the mounting part; wherein, the third fastening hole is formed on the mounting part, and the fastening member can connect the terminal to the mounting part through the terminal and the third fastening hole.

[0013] As an optional implementation, the mounting part is provided with a plurality of third fastening holes spaced and uniformly distributed; the mounting part comprises a mounting plate and a plurality of protruding columns spaced and uniformly distributed, the plurality of protruding columns are connected to the mounting plate, and the plurality of protruding columns and the plurality of third fastening holes are one-to-one corresponding; wherein, each third fastening hole comprises a first hole section, a transition hole section and a second hole section in communication, the first hole section is formed on the mounting plate, the transition hole section and the second hole section are formed on the protruding column, and the hole diameter of the second hole section and the hole diameter of the first hole section are both greater than the hole diameter of the transition section.

[0014] As an optional implementation, the mounting part further comprises a plurality of partition protruding parts spaced and uniformly distributed, the plurality of protruding columns and the plurality of partition protruding parts are connected to opposite ends of the mounting plate, and a partition protruding part is distributed between two adjacent third fastening holes; in the arrangement direction of the plurality of third fastening holes, the size of the partition protruding part is greater than or equal to 10 mm; the partition protruding part has an extension protruding part extending towards the protective seat, and the side wall of the extension protruding part and part of the side wall of the mounting plate jointly form the second cavity wall.

[0015] In the second aspect, the application provides a motor, comprising a motor shell, three-phase wires and the motor wire harness fixing structure; the motor shell is formed with an armature cavity and a wiring cavity, the armature cavity and the wiring cavity are in communication through a wiring hole, an armature is installed in the armature cavity, the motor wire harness fixing structure is arranged in the wiring cavity and covers the wiring hole, and the protective seat and the fixing seat jointly form three threading cavities; the three-phase wires comprise three wire harnesses, one end of the wire harness is connected to the armature, the other end of the wire harness is connected to a corresponding terminal after passing through a corresponding threading cavity, and the terminal is fixedly connected with the fixing seat.

[0016] Thirdly, this application provides a vehicle including the aforementioned motor.

[0017] In the motor wiring harness fixing structure, motor, and vehicle provided in this application, the connection between the wiring harness and the armature can be realized through the cooperation of the protective seat and the fixing seat, and the wiring terminals can be fixed.

[0018] This prevents the wiring harness from contacting the motor housing during connection and fixing, thus avoiding scratch damage to the surface of the wiring harness from the motor housing. As a result, the wiring harness can maintain good electrical performance, thereby reducing the risk of accidents such as leakage and short circuits and improving the safety of motor use. Attached Figure Description

[0019] Figure 1 A schematic diagram of a partial structure of the first type of motor provided in this application embodiment;

[0020] Figure 2 for Figure 1 A schematic diagram of the planar structure along direction A;

[0021] Figure 3 A schematic diagram of a partial structure of the second type of motor provided in an embodiment of this application;

[0022] Figure 4 for Figure 3 A schematic diagram of a partial structure;

[0023] Figure 5 for Figure 1 A partial structural diagram of the structure shown;

[0024] Figure 6 for Figure 5 Enlarged schematic diagram of the local structure at point B;

[0025] Figure 7 for Figure 4 A sectional view along the CC direction;

[0026] Figure 8 for Figure 7 A schematic diagram of the local structure at point D;

[0027] Figure 9 A three-dimensional structural diagram of the fixing seat in the motor wiring harness fixing structure provided in the embodiments of this application;

[0028] Figure 10 for Figure 9 Cross-sectional view along the EE direction;

[0029] Figure 11 for Figure 9Structure schematic view from another perspective;

[0030] Figure 12 Three-dimensional structure schematic view of a protective seat in a motor wire harness fixing structure provided by an embodiment of the present application;

[0031] Figure 13 Three-dimensional structure schematic view of another protective seat in a motor wire harness fixing structure provided by an embodiment of the present application;

[0032] Figure 14 Three-dimensional structure schematic view of a protective seat in a motor wire harness fixing structure provided by an embodiment of the present application; Figure 12 Structure schematic view from another perspective;

[0033] Figure 15 Three-dimensional structure schematic view of a protective seat in a motor wire harness fixing structure provided by an embodiment of the present application; Figure 14 Sectional view along F-F direction;

[0034] Figure 16 Three-dimensional structure schematic view of a protective seat in a motor wire harness fixing structure provided by an embodiment of the present application; Figure 13 Structure schematic view from another perspective;

[0035] Figure 17 Three-dimensional structure schematic view of a protective seat in a motor wire harness fixing structure provided by an embodiment of the present application; Figure 16 Sectional view along G-G direction.

[0036] Legend of reference signs:

[0037] 1, protective seat; 2, fixing seat; 3, threading cavity;

[0038] 11, first cavity wall; 12, protective main body; 13, wire guide part; 14, connecting plate; 15, first bushing; 21, fixing part; 22, mounting part; 23, side wall; 24, second bushing; 25, third bushing; 26, second weight-reducing groove; 10, motor shell; 20, wire harness; 30, first bolt; 40, gap; 50, armature; 60, three-phase wire; 70, second bolt;

[0039] 111, first wire passing wall; 112, second wire passing wall; 121, first weight-reducing groove; 122, first fastening hole; 123, accommodating groove; 124, support plate; 125, side plate; 126, fastening plate; 127, avoiding notch; 128, first reinforcing plate; 129, second reinforcing plate; 211, second fastening hole; 221, third fastening hole; 222, mounting plate; 223, protruding column; 224, partition protruding part; 225, reinforcing rib; 226, second cavity wall; 101, armature cavity; 102, wiring cavity; 103, wiring hole; 201, wiring terminal;

[0040] 2211, first hole section; 2212, second hole section; 2213, transition section; 2241, extending protruding part. DETAILED DESCRIPTION

[0041] The technical solutions in the present application will be described clearly and exhaustively in combination with the drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " represents the meaning of or, for example, A / B can represent A or B: "and / or" in the text is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0042] Hereinafter, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features.

[0043] In the related art, the motor includes a shell, an armature cavity and a wiring cavity are formed inside the shell, the armature cavity and the wiring cavity are communicated through a wiring hole formed on the shell, an armature is installed in the armature cavity, three-phase wires are connected to the armature, the other end of the three-phase wires passes through the wiring hole, and the wiring terminals of the three-phase wires are fixed in the wiring cavity.

[0044] However, in the above motor, since the shell is made of metal material and has a large surface roughness, when the three-phase wires pass through the wiring hole, the three-phase wires can be scratched by the hole wall of the wiring hole. Therefore, the electrical performance of the three-phase wires can be affected, which can cause short circuit, leakage and other accidents, thereby reducing the safety and use performance of the motor as a whole.

[0045] The embodiments of the present application will be described in detail below in combination with the drawings and specific embodiments.

[0046] Please combine Figures 1 to 4 , Figure 1 The first motor partial structure structure diagram provided by the embodiments of the present application, Figure 2 For Figure 1 The plane structure diagram along the A direction, Figure 3 The second motor partial structure structure diagram provided by the embodiments of the present application, Figure 4 For Figure 3 The partial structure diagram. As shown in the figure, the present embodiment provides a motor wire harness fixing structure, which comprises a protection seat 1 and a fixing seat 2.

[0047] Further, please continue to combine Figures 5 to 8 , Figure 5 For Figure 1 The partial structure diagram of the structure shown in, Figure 6 For Figure 5 The partial structure enlarged diagram of B in, Figure 7 ForFigure 4 a sectional view along the direction of C-C, Figure 8 is Figure 7 a partial structure schematic view at D. The protective seat 1 is used for connecting with the motor shell 10, and the protective seat 1 is used for being arranged at the wiring hole 103 of the motor shell 10.

[0048] The fixing seat 2 is used for connecting with the motor shell 10, and the protective seat 1 and the fixing seat 2 jointly form a threading cavity 3 for the wire harness 20 to pass through.

[0049] Further, please combine Figures 9 to 11 , Figure 9 is a three-dimensional structure schematic view of the fixing seat in the motor wire harness fixing structure provided by the embodiment of the present application, Figure 10 is Figure 9 a sectional view along the direction of E-E, Figure 11 is Figure 9 a structure schematic view from another perspective. As shown in the figure, the fixing seat 2 is provided with a third fastening hole 221 for fixing a wiring terminal 201 connected with the wire harness 20.

[0050] In this way, in the motor, through the cooperation of the protective seat 1 and the fixing seat 2, one end of the wire harness 20 can be electrically connected with the armature 50, and the other end of the wire harness 20 can be connected together with the fixing seat 2 after passing through the threading cavity 3.

[0051] In this way, the wire harness 20 can avoid contacting with the motor shell 10 during the connection and fixation, so that the motor shell 10 can avoid scratching and damaging the surface of the wire harness 20 to a certain extent, so that the wire harness 20 can maintain good electrical performance, so as to avoid accidents such as electric leakage and short circuit to a certain extent, and improve the use safety of the motor.

[0052] Please continue to combine Figure 12 and Figure 13 , Figure 12 is a three-dimensional structure schematic view of a protective seat in the motor wire harness fixing structure provided by the embodiment of the present application, Figure 13 is a three-dimensional structure schematic view of another protective seat in the motor wire harness fixing structure provided by the embodiment of the present application. As shown in Figure 9 and Figure 10 , the protective seat 1 comprises a protective main body 12 and a lead portion 13; the protective main body 12 is used for detachably connecting with the motor shell 10; the lead portion 13 is connected to the protective main body 12; the threading cavity 3 comprises a first cavity wall 11, the first cavity wall 11 is formed on the lead portion 13, and the protective main body 12 and the motor shell 10 are connected through the first bolt 30. Of course, in some other embodiments, the protective main body 12 and the motor shell 10 can also be connected together through other ways, such as clamping, etc. Herein, no limitation is made.

[0053] The first bolt 30 can be an M6 bolt, and the protective body 12 and the motor shell 10 can be connected together by two first bolts 30. The type and number of the first bolts 30 are not limited herein.

[0054] Therefore, in the present embodiment, the protective body 12 is provided with a first fastening hole 122 for the bolt rod of the first bolt 30 to pass through.

[0055] In some optional embodiments, in order to improve the connection reliability between the protective seat 1 and the motor shell, two first fastening holes 122 can be arranged on the protective body 12. The number of the first fastening holes 122 is not limited herein.

[0056] Please continue to combine Figures 14 to 17 , Figure 14 For Figure 12 a structural schematic view from another perspective, Figure 15 For Figure 14 a sectional view along the F-F direction, Figure 16 For Figure 13 a structural schematic view from another perspective, Figure 17 For Figure 16 a sectional view along the G-G direction.

[0057] In order to improve the structural strength at the first fastening hole 122, in some optional embodiments, a first bushing 15 is embedded in the first fastening hole 122, and the first bushing 15 is connected with the bolt rod of the first bolt 30. In this way, by arranging the first bushing 15, the torque when the first bolt 30 is tightened can be borne, so that the structural strength of the protective seat 1 at the first fastening hole 122 can be improved, so as to further prolong the service life of the protective seat 1.

[0058] For example, the inner diameter of the first bushing 15 can be 6.8 mm to meet the requirement of the bolt rod of the M6 bolt. The size of the first bushing 15 is not limited herein.

[0059] It should be noted that the protective seat 1 is made of an insulating material such as plastic material to ensure insulation, and in some specific embodiments, the protective seat 1 can be manufactured by an integral molding method. The material and molding method of the protective seat 1 are not limited herein.

[0060] For example, in order to meet the insulation and flame retardation requirements of the protective seat 1, the protective seat 1 can be reinforced by Polyamide 6T (PA6T) and 30% glass fiber (GF). This material combines the excellent performance of Polyamide 6T and the reinforcing effect of glass fiber.

[0061] Furthermore, the first bushing 15 can be made of 20# steel. That is, the material selected for the first bushing 15 (high-strength metal) is different from the material selected for the protective seat 1 (plastic). This allows it to withstand greater torque, compensating for the relatively weak strength of the protective seat 1.

[0062] Specifically, No. 20 steel is a commonly used carbon structural steel. No specific restrictions are placed on the material of the first bushing 15.

[0063] Understandably, in order to reduce the weight of the protective seat 1, multiple spaced-apart first weight-reducing grooves 121 can be provided on the protective body 12 of the protective seat 1. Here, there is no specific limitation on the number and shape of the first weight-reducing grooves 121. In this way, by providing multiple first weight-reducing grooves 121, it is easier to install the protective seat 1 on the motor housing, thereby improving the assembly efficiency of the protective seat 1.

[0064] In a specific embodiment of this invention, the first cavity wall 11 is shaped as a semicircle that matches the outline of the wire harness 20.

[0065] like Figure 6 and Figure 8 As shown, to mitigate insulation failure to some extent, in some optional embodiments, gaps 40 are formed between the first cavity wall 11 and the outer surface of the wire harness 20, and between the first cavity wall and the outer surface of the terminal block. The radial dimension of the gap 40 in the wire passage cavity 3 is greater than or equal to 2 mm. This not only meets the protection requirements for the wire harness 20, but also allows gear oil inside the motor to splash onto the terminal block 201 through the gap 40, forming an oil film on the terminal block 201. This helps prevent condensation from forming on the terminal block 201 due to rapid temperature changes in the motor, thus preventing insulation failure.

[0066] For example, when the cross-sectional shape of the first cavity wall 11 is semi-circular, the diameter of the first cavity wall 11 is greater than or equal to 18 mm. The 18 mm here is because the diameter of the wire harness 20 can be 10 mm, and the overall width of the wire harness terminal 201, or the width near the end of the first cavity wall 11, can be 14 mm. Since the width of the wire harness terminal 201 is greater than the diameter of the wire harness 20, it is necessary to ensure that at least a 2 mm gap 40 is formed between the first cavity wall 11 and the wire harness terminal 201. Therefore, the minimum diameter of the first cavity wall 11 is the sum of the width of the wire harness terminal 201 (14 mm) and the minimum value of the gap 40 on both sides of the width of the wire harness terminal 201, which is 18 mm.

[0067] Here, no specific restrictions are placed on the diameter of the first cavity wall 11 and the diameter of the wire harness 20.

[0068] In the specific embodiment of the present embodiment, in order to make the volume of the protection seat 1 smaller to satisfy the light weight of the protection seat 1, the diameter of the first cavity wall 11 can be the minimum value of 18 mm. In this way, on the one hand, the material for manufacturing the protection seat 1 can be reduced; on the other hand, the weight of the protection seat 1 is smaller, which is convenient for assembly.

[0069] It can be understood that in the motor, the wire connected to the armature 50 is a three-phase wire 60, and at this time, three first cavity walls 11 need to be formed on the protection seat 1.

[0070] In some optional embodiments, the protection seat 1 has a plurality of first cavity walls 11 that are uniformly distributed, and the distance d between the adjacent positions of two adjacent first cavity walls 11 is greater than or equal to 10 mm. In this way, when different wire harnesses 20 are separated and stored in each wire passing cavity 3, even in the extreme case, the distance between the two adjacent wire harnesses 20 can be ensured to be greater than or equal to 10 mm, so that the distance between the two adjacent wire harnesses 20 is avoided to be too close, and the insulation effect is ensured.

[0071] Since the present embodiment provides two protection seats 1 with different structures, the two protection seats 1 will be described in detail below with reference to the accompanying drawings.

[0072] As shown in Figure 12 , Figure 14 and Figure 15 , in an embodiment, the first cavity wall 11 is formed on the protection main body 12 and the wire guide portion 13. Specifically, the protection main body 12 is a plate-shaped structure, and the thickness direction of the protection main body 12 can be consistent with the up-down direction. The up-down direction here can refer to the up-down direction in Figure 1 . The wire guide portion 13 is connected to one end of the protection main body 12 along the thickness direction thereof, and specifically can be the lower end in Figure 1 .

[0073] The contour shape of the wire guide portion 13 can be a plate-shaped structure consistent with the shape of the first cavity wall 11, and at this time, the first cavity wall 11 can include the first wire passing wall 111 and the second wire passing wall 112, and the first wire passing wall 111 is opened on the protection main body 12. The second wire passing wall 112 is formed on the wire guide portion 13. Exemplarily, the second wire passing wall 112 can be opened on the wire guide portion 13, or can be constructed by the shape of the wire guide portion 13 itself, and here, the forming method of the second wire passing wall 112 is not specifically limited.

[0074] When the motor wire harness fixing structure provided by the present embodiment is applied to the three-phase wire 60 in the motor, the wire guide portion 13 can be provided as three, and each wire guide portion 13 forms a second wire passing wall 112, and the two adjacent wire guide portions 13 can be connected by a connecting plate 14.

[0075] In some alternative embodiments, in order to reduce the impact on structural compactness due to the arrangement of the protective seat 1, the protective body 12 can further be provided with a receiving groove 123 in communication with the first fastening hole 122; the receiving groove 123 has a receiving space inside for accommodating the head of the first bolt 30. In this way, the occupied space of the head of the first bolt 30 can be reduced to some extent to avoid interference with other structures inside the motor housing 10.

[0076] As shown in FIGS. 1, 2 and 3, in one embodiment, the protective body 12 can include a support plate 124 and two side plates 125 connected to opposite sides of the support plate 124. Figure 13 、 Figure 16 and Figure 17 As shown in FIGS. 4, 5 and 6, in another embodiment, the protective body 12 can include a support plate 124, two side plates 125 connected to opposite sides of the support plate 124, and two fastening plates 126 corresponding to the two side plates 125 and connected to the corresponding side plates, each of the fastening plates 126 being provided with a first fastening hole 122.

[0077] In this embodiment, the support plate 124 and the side plates 125 are perpendicular, and the fastening plates 126 are parallel to the support plate 124. The wire portion 13 is connected to the support plate 124 and the two side plates 125, and the first cavity wall 11 is formed on the wire portion 13.

[0078] In this embodiment, the thickness direction of the support plate 124 is consistent with the axial direction of the armature 50.

[0079] It can be understood that when the protective seat 1 is connected to the motor housing 10, it can interfere with the structure of the motor housing 10 itself, and therefore, in this embodiment, the protective body 12 is formed with at least one avoiding gap 127 for avoiding part of the structure of the motor housing 10.

[0080] In the specific embodiment of this embodiment, the support plate 124 and the two fastening plates 126 are each formed with an avoiding gap 127. In this embodiment, the support plate 124 can be formed with a plurality of avoiding gaps 127, for example, two. In this embodiment, the number of avoiding gaps 127 is not limited.

[0081] Further, in order to improve the structural strength of the protective seat 1, the support plate 124 and the side plate 125 can be connected by a first reinforcing plate 128, and the side plate 125 and the fastening plate 126 can be connected by a second reinforcing plate 129. In this way, by arranging the first reinforcing plate 128 and the second reinforcing plate 129, the structural strength of the protective seat 1 can be improved, the service life of the protective seat 1 can be prolonged, and the wire harness 20 can maintain good electrical performance for a long time.

[0082] It should be noted that the thickness of the support plate 124 cannot be too thin, otherwise it will affect the structural strength of the protection seat 1, and the thickness of the support plate 124 cannot be too thick, too thick will increase the material and weight of the protection seat 1. In the embodiment, the thickness of the support plate 124 can be 2.5mm.

[0083] Of course, the thickness of the support plate 124 can also be other suitable sizes, and no specific limitation is made.

[0084] As can be known from the above, the fixing seat 2 and the protection seat 1 are enclosed to form a wire passing cavity 3 for the wire harness 20 to pass through, and the terminal 201 is fixedly connected with the third fastening hole 221. Therefore, the fixing seat 2 will be described in detail below in combination with the drawings.

[0085] As shown in Figure 2 , Figures 9 to 11 The fixing seat 2 includes a fixing portion 21 and a mounting portion 22 connected together; the fixing portion 21 is used for detachable connection with the motor housing 10, and the wire passing cavity 3 includes a second cavity wall 226 formed on the mounting portion 22. In this way, by providing the fixing seat 2, a structure only for fixing the terminal 201 is not needed, which not only can make the manufacturing cost of the motor smaller, but also can improve the structural compactness inside the motor housing 10.

[0086] Specifically, the fixing portion 21 can be provided in two, and the mounting portion 22 is connected between the two fixing portions 21, and the second fastening hole 211 is provided on the fixing portion 21, and the second bolt 70 passes through the second fastening hole 211 and is connected with the motor housing 10. Of course, in some other embodiments, the fixing portion 21 and the motor housing 10 can also adopt other connection modes, for example, clamping, etc. Herein, the connection mode between the fixing portion 21 and the motor housing 10 is not specifically limited.

[0087] In some embodiments, the fixing portion 21 is a plate-shaped structure, and in order to improve the structural strength of the fixing seat 2, a side wall 23 connected with the fixing portion 21 can be provided on the circumferential side of the fixing portion 21. By providing the side wall 23, the structural strength of the fixing seat 2 can be improved to improve the service life of the fixing seat 2. In the specific embodiment of the embodiment, the fixing portion 21 has three sides connected with the side wall 23, wherein one side wall 23 is located between the fixing portion 21 and the mounting portion 22, and the other two side walls 23 are connected to the opposite ends of the above-mentioned side wall 23, and the two side walls 23 are formed with inclined surfaces.

[0088] In order to fix the terminal 201, a third fastening hole 221 is formed on the mounting portion 22, and a second bushing 24 is embedded in the third fastening hole 221. A fastener, which can be a third bolt, can pass through the terminal 201 and the second bushing 24 to connect the terminal 201 to the mounting portion 22. In this way, the terminal 201 can be fixed.

[0089] The second bushing 24 can improve the connection reliability between the terminal 201 and the mounting portion 22.

[0090] It should be noted that in the specific implementation of the embodiment, the depth of the second bushing 24 is 20 mm to meet the screwing depth of the third bolt. Moreover, the material of the second bushing 24 is consistent with that of the first bushing 15, which will not be described here.

[0091] Of course, a third bushing 25 can also be embedded in the second fastening hole 211, and the third bushing 25 has the same function as the second bushing 24. The second bolt 70 can pass through the third bushing 25 to connect the motor housing 10. In addition, the material of the third bushing 25 can also be consistent with that of the second bushing 24. Here, the third bushing 25 is not specifically limited.

[0092] It can be understood that when the motor harness fixing structure provided by the embodiment is applied to three-phase lines of a motor, three terminals 201 should be connected to the mounting portion 22.

[0093] Therefore, in some embodiments, a plurality of third fastening holes 221 are formed on the mounting portion 22. For example, there can be three third fastening holes 221.

[0094] In some specific embodiments, the mounting portion 22 includes a mounting plate 222 and a plurality of protruding columns 223. The plurality of protruding columns 223 are connected to the mounting plate 222, and the plurality of protruding columns 223 are arranged one-to-one with the plurality of third fastening holes 221.

[0095] Each third fastening hole 221 includes a first hole section 2211, a transition section 2213, and a second hole section 2212. The first hole section 2211 is formed on the mounting plate 222, the transition section 2213 and the second hole section 2212 are formed on the protruding column 223, and the hole diameter of the second hole section 2212 and the hole diameter of the first hole section 2211 are both greater than the hole diameter of the transition section 2213. In this way, the shape of the third fastening hole 221 is adapted to the shape of the second bushing 24, so that the second bushing 24 can be embedded in the third fastening hole 221.

[0096] Since the second bushing 24 is used for fixing the terminal 201, the second bushing 24 will also be electrified. To ensure insulation, the second bushing 24 is embedded into the third fastening hole 221 through the first hole section 2211, the transition section 2213, and the second hole section 2212, so as to ensure that the second bushing 24 is completely wrapped by the protruding column 223.

[0097] In addition, the two adjacent protruding columns 223 are connected through the reinforcing rib 225. In this way, the structural strength of the fixing seat 2 can be improved, so as to improve the connection reliability between the terminal 201 and the fixing seat 2, and make the wire harness 20 have better electrical performance.

[0098] To separate the plurality of terminals 201, so as to ensure that each wire harness 20 has better electrical performance, in the embodiment, the mounting portion 22 further comprises a plurality of spaced apart separation protrusions 224. The plurality of protruding columns 223 and the plurality of separation protrusions 224 are connected to opposite ends of the mounting plate 222, and one separation protrusion 224 is distributed between two adjacent third fastening holes 221. In this way, the two terminals 201 can be separated, so as to make the wire harness 20 have better electrical performance.

[0099] It should be noted that one end of the separation protrusion 224 extends outward to form an extension protrusion 2241, the extension protrusion 2241 is located between the two wire harnesses 20, and the side wall of the extension protrusion 2241 and part of the side wall of the mounting plate 222 together form a second cavity wall 226. In this way, the two adjacent wire harnesses 20 can be further separated, so as to make the wire harness 20 have better electrical performance, and avoid accidents such as short circuit and electric leakage.

[0100] In order to make the adjacent two terminals 201 have better electrical performance, in some optional embodiments, the size of the separation protrusion 224 is greater than or equal to 10 mm in the arrangement direction of the plurality of third fastening holes 221.

[0101] In this way, when the different wire harnesses 20 are separated and independently stored in each threading cavity 3, even in the extreme case, the distance between the two adjacent wire harnesses 20 can be ensured to be greater than or equal to 10 mm, so as to avoid that the distance between the two adjacent wire harnesses 20 is too close, and ensure the insulation effect.

[0102] In the embodiment of the application, the size of the separation protrusion 224 can be 11 mm. In this way, the distance between the adjacent terminals 201 can meet the requirements, so as to ensure the electrical performance of the terminal 201.

[0103] It should be noted that the arrangement direction of the plurality of third fastening holes 221 is consistent with the y-y axis direction in the above description. Figures 9 to 11

[0104] ​Of course, in order to reduce the mass of the fixing seat 2 so as to facilitate the assembly of the fixing seat 2 to the motor housing 10, in some specific embodiments, a plurality of second lightening grooves 26 can also be arranged on the fixing seat 2. In the specific embodiments of the present embodiment, the mounting plate 222, the extension protrusion 2241 and the fixing portion 21 can all be provided with the second lightening grooves 26. Here, the number and shape of the second lightening grooves 26 are not specifically limited.

[0105] The present embodiment also provides a motor, which comprises the motor housing 10, the three-phase wire 60 and the motor wire harness fixing structure in the above-mentioned embodiments. The three-phase wire 60 is composed of three different wire harnesses 20, and the motor is provided with three-phase alternating current through the three-phase wire 60, and the motor wire harness fixing structure has been described in detail in the above-mentioned embodiments, which will not be repeated here.

[0106] As shown in Figure 1 , Figures 3 to 8 As shown in Figure 5 and Figure 6 , the armature cavity 101 and the wire connecting cavity 102 can be communicated through the wire connecting hole 103, the armature 50 is installed in the armature cavity 101, the motor wire harness fixing structure is arranged in the wire connecting cavity 102, the protection seat 1 and the fixing seat 2 jointly form three wire passing cavities 3; one end of the wire harness 20 is connected to the armature 50, the other end of the wire harness 20 is connected to the corresponding wire connecting terminal 201 after passing through the corresponding wire passing cavity 3, and the wire connecting terminal 201 is fixedly connected with the fixing seat 2.

[0107] It should be noted that the protection seat 1 and the fixing seat 2 can cover the wire connecting hole 103 after installation. In this way, the bolts and other foreign matters can be blocked during the assembly process, which to some extent avoids the bolts and other foreign matters from falling into the motor (i.e. the armature cavity 101) through the wire connecting hole 103 during the assembly process. In this way, the use stability of the motor provided by the present embodiment is higher.

[0108] It should be noted that the motor provided by the present embodiment should also include a rotating shaft and other modules or components that can enable the motor to work normally, and here, other modules or components will not be described one by one.

[0109] The motor provided by the present embodiment can to some extent avoid the three-phase wire 60 from being scratched by the motor housing 10 by adopting the above-mentioned motor wire harness fixing structure, so that the three-phase wire 60 can maintain good electrical performance, thereby improving the safety performance of the motor provided by the present embodiment.

[0110] The embodiment further provides a vehicle comprising the motor.

[0111] The vehicle provided by the embodiment has high safety performance.

[0112] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An electric machine wire harness fixing structure characterized by comprising: The protective seat and the fixing seat jointly form a wire passing cavity for the wire harness to pass through, and a third fastening hole is formed on the fixing seat for fixing a terminal connected with the wire harness. The protective seat includes a protective body and a wire guide part; 2. The electric machine harness fixing structure according to claim 1, characterized by The protective body is used for detachable connection with the motor shell; The wire guide part is connected to the protective body, and the wire passing cavity includes a first cavity wall formed on the wire guide part. The protective body is connected with the motor shell through a first bolt, and the protective body is provided with a first fastening hole for the bolt rod of the first bolt to pass through; 3. The motor harness fixing structure according to claim 2, characterized by A first bushing is embedded in the first fastening hole and is connected with the bolt rod of the first bolt. The protective body is further provided with an accommodating groove in communication with the first fastening hole; 4. The motor harness fixing structure according to claim 3, characterized by The accommodating groove has an accommodating space inside for accommodating the head of the first bolt.

5. The motor wire harness fixing structure according to any one of claims 2 to 4, wherein the first cavity wall is in a semicircular shape adapted to the contour shape of the wire harness, a gap is formed between the first cavity wall and the outer surface of the wire and between the first cavity wall and the outer surface of the terminal, and the size of the gap in the radial direction of the wire passing cavity is greater than or equal to 2 mm; and / or, The protective seat has a plurality of first cavity walls uniformly distributed at intervals, and the distance between the adjacent positions of two adjacent first cavity walls is greater than or equal to 10 mm. The fixing seat includes a fixing part and a mounting part connected together; 6. The electric machine harness fixing structure according to any one of claims 1 to 4, characterized by The fixing part is used for detachable connection with the motor shell, and the wire passing cavity includes a second cavity wall formed on the mounting part; The third fastening hole is formed on the mounting part, and a fastener can pass through the terminal and the third fastening hole to connect the terminal to the mounting part. The mounting part is provided with a plurality of third fastening holes uniformly distributed at intervals; 7. The motor harness fixing structure according to claim 6, characterized by The mounting part includes a mounting plate and a plurality of protruding columns uniformly distributed at intervals, and the plurality of protruding columns are connected to the mounting plate, and the plurality of protruding columns and the plurality of third fastening holes are arranged one by one. Each of the third fastening holes includes a first hole section, a transition section and a second hole section in communication, the first hole section is formed on the mounting plate, the transition section and the second hole section are formed on the protruding column, and the hole diameter of the second hole section and the hole diameter of the first hole section are both greater than the hole diameter of the transition section. The mounting part further includes a plurality of partition protruding parts uniformly distributed at intervals, and the plurality of protruding columns and the plurality of partition protruding parts are connected to opposite ends of the mounting plate; 8. The electrical harness fixation structure of claim 7, wherein One partition protruding part is distributed between two adjacent third fastening holes; In the arrangement direction of the plurality of third fastening holes, the size of the partition protruding part is greater than or equal to 10 mm; The partition protruding part has an extension protruding part extending towards the protective seat, and the side wall of the extension protruding part and part of the side wall of the mounting plate jointly form the second cavity wall. The motor shell, the three-phase wire and the motor wire harness fixing structure according to any one of claims 1 to 8 are included.

9. An electric machine characterized by ​ The motor housing is formed with an armature cavity and a wiring cavity, the armature cavity and the wiring cavity are communicated through a wiring hole, an armature is installed in the armature cavity, the motor wire harness fixing structure is arranged in the wiring cavity and covers the wiring hole, and the protection seat and the fixing seat jointly form three wire passing cavities; The three-phase wire includes three wire harnesses, one end of each wire harness is connected to the armature, and the other end of each wire harness is connected to a corresponding wire terminal after passing through a corresponding wire passing cavity, and the wire terminal is fixedly connected to the fixing seat.

10. A vehicle characterized by comprising: The motor includes the motor of claim 9.

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