Flat wire motor stator busbar fixing structure, busbar and motor

Abstract

The utility model provides a flat wire motor stator busbar fixing structure, a busbar and a motor, the flat wire motor stator busbar fixing structure comprises a plurality of fixing members, the plurality of fixing members are arranged on a busbar main body, and the plurality of fixing members are sequentially arranged along the length direction of the busbar main body to fix the busbar; and the fixing piece is arranged on one side, facing the conductor, of the busbar main body, and the fixing piece at least comprises two fixing parts which are arranged at an interval and used for fixing the conductor. The beneficial effects of the utility model are that the strength of the busbar is optimized from the structure, the structural strength of the busbar is improved on the premise of not increasing working procedures, and the motor vibration test requirement is met; the arrangement of the plurality of fixing parts can ensure that a plurality of positions of the busbar and the conventional welding spots of the motor are fixed, a gap is formed between two adjacent fixing parts, and the permeation of insulating paint in the subsequent paint dripping process can be ensured, so that the busbar and the conventional welding spots are connected into a whole, and the strength and the stability of the busbar structure are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to a flat wire motor stator busbar fixing structure, a busbar and a motor. Background Art

[0002] In the existing busbar installation and fixing solutions, in addition to welding point fixing, glue fixing and busbar and casing fixing are mostly used. Each fixing method requires adding corresponding processes, which increases the busbar installation and fixing costs. Summary of the invention

[0003] In view of the above problems, the utility model provides a flat wire motor stator busbar fixing structure, a busbar and a motor to solve the above or other problems existing in the prior art.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a flat wire motor stator busbar fixing structure, including a plurality of fixing parts, the plurality of fixing parts are arranged on the busbar body, and the plurality of fixing parts are arranged in sequence along the length direction of the busbar body to fix the busbar;

[0005] The fixing piece is arranged on a side of the busbar body facing the conductor, and the fixing piece comprises at least two fixing parts arranged at intervals to fix the conductor.

[0006] Furthermore, two adjacent fixing parts are arranged opposite to each other, and a gap is provided between the two adjacent fixing parts, so as to accommodate and fix the conductor and facilitate the penetration of insulating paint.

[0007] Furthermore, when there are multiple fixing parts, the multiple fixing parts are arranged at intervals, and the multiple fixing parts are arranged linearly.

[0008] Furthermore, the plurality of fixing portions are arranged in sequence along the radial direction of the stator core, and two adjacent fixing portions are arranged in parallel.

[0009] Furthermore, the fixing portion is formed by extending the busbar body toward the conductor.

[0010] Furthermore, the fixing member also includes a connecting portion, one side of which is connected to the busbar body, and the plurality of fixing portions are arranged on the other side of the connecting portion.

[0011] Furthermore, along the length direction of the busbar body, the number of fixing parts of the fixing pieces located at both ends of the busbar body is less than the number of fixing parts of the fixing pieces located in the middle of the two ends.

[0012] Furthermore, the busbar body includes a terminal busbar and a star-point busbar connected to each other, the star-point busbar is arranged on one side of the terminal busbar, and the plurality of fixing members are arranged on the other side of the terminal busbar.

[0013] A busbar comprises the flat wire motor stator busbar fixing structure as described above.

[0014] A motor comprises the above-mentioned busbar.

[0015] Due to the adoption of the above technical scheme, the flat wire motor stator bus fixing structure has multiple fixings, and the multiple fixings are arranged in sequence along the length direction of the bus body, and the multiple fixings can be inserted into the multiple conductors of the output end of the stator winding during the bus installation process. Each fixing includes at least two fixing parts, and there is a gap between two adjacent fixing parts. When the fixing is inserted into the conductor, two conductors connected together and arranged in a group are located in the gap between two adjacent fixing parts, and each fixing part contacts a conductor to fix the conductor, thereby realizing the fixing of the bus by multiple fixings. During the installation of the bus, the fixings increase the fixing strength of the bus, optimize the strength of the bus from a structural point of view, and improve the structural strength of the bus without increasing the process. Under the premise of not increasing the process, the structural strength of the bus is improved to meet the motor vibration test requirements; the arrangement of multiple fixings can ensure that the bus and the conventional welding points of the motor are fixed at multiple locations, and there is a gap between two adjacent fixing parts, which can ensure the penetration of insulating paint in the subsequent paint dripping process, so that the bus and the conventional welding points are connected as one, ensuring the strength and stability of the bus structure, and not increasing other processes and costs during the installation of the bus. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the stator structure of an embodiment of the utility model;

[0017] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure of part A;

[0018] Figure 3 It is a structural schematic diagram of a fixing structure of an embodiment of the utility model;

[0019] Figure 4 It is a structural schematic diagram from another angle of the fixing structure of an embodiment of the utility model.

[0020] In the figure:

[0021] 1. Busbar 2. Fixing parts 3. Conductor

[0022] 4. Busbar body 20, fixing portion 40, terminal busbar

[0023] 41. Star point bus 5. Welding parts DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Figure 1 A structural schematic diagram of an embodiment of the utility model is shown, and the embodiment relates to a flat wire motor stator bus fixing structure, a bus and a motor. The fixing structure is installed on the bus. During the installation of the bus, the fixing structure fixes the bus, and can fix the bus and the motor welding points in multiple places. At the same time, the fixing structure has fixing parts with openings on both sides, which can ensure the penetration of insulating paint in the subsequent paint dripping process, ensure the strength and stability of the bus structure, and do not increase the process and cost.

[0026] A flat wire motor stator busbar fixing structure, such as Figure 1-3 As shown, it is installed on the bus 1, and the bus is fixed during the installation of the bus 1, so that the bus 1 can be stably installed on the stator winding, without the need for glue fixation and casing fixation, reducing the process and installation costs; the flat wire motor stator bus fixing structure includes a plurality of fixings 2, and the plurality of fixings 2 are installed on the bus body 4, and the plurality of fixings 2 are arranged in sequence along the length direction of the bus body 4. The arrangement of the bus body 4 is convenient for the arrangement of the plurality of fixings 2, and at the same time, it is convenient for the installation of the bus 1. The arrangement of the fixings 2 further fixes the bus during the installation of the bus, and fixes the bus to the outlet end of the stator winding. The fixings 2 can fix the stator winding welding points, and the number of the fixings 2 is multiple, and the welding points at different positions of the stator winding can be fixed from different positions, and the bus is fixed, thereby improving the structural strength of the bus 1 and meeting the motor vibration test requirements.

[0027] When the fixing member 2 is provided, the fixing member 2 is provided on a side surface of the busbar body 4 facing the conductor 3, so that the fixing member 2 contacts the conductor 3, and the fixing member 2 includes at least two fixing portions 20 arranged at intervals, and the conductor 3 can be located between the two fixing portions 20, so as to accommodate and fix the conductor 3. The provision of multiple fixing portions 20 can fix multiple conductors 3, and the provision of multiple fixing members 2 can fix the busbar 1 from different positions, thereby increasing the structural strength of the busbar.

[0028] The fixing member 2 is fixedly connected to the bus body 4. The fixing connection method can be through connecting members such as bolts, or injection molding, or bonding, or other fixing connection methods. It is selected according to actual needs and no specific requirements are made here.

[0029] The fixing member 2 is made of plastic and does not conduct electricity, thereby ensuring the accurate operation of the motor and not affecting the working current of the motor.

[0030] Specifically, the above-mentioned busbar body 4 has a certain length, and a busbar 1 and a welding part 5 are arranged on a side of the busbar body 4 away from the conductor 3. The number of busbars 1 is multiple, and the multiple busbars 1 are arranged in sequence along the length direction of the busbar body 4, and the multiple busbars 1 are arranged on any side of the busbar body 4. In this embodiment, the number of busbars 1 is three, and the three busbars 1 are arranged on a side of the busbar body 4 facing the outside of the stator winding; the welding part 5 is welded to the outlet end of the conductor 3, and the number of welding parts 5 is multiple, and the multiple welding parts 5 are arranged in sequence along the length direction of the busbar body 4, and the multiple welding parts 5 are arranged on both sides of the busbar body 4, so that the welding parts 5 at different positions can be welded to the conductors 3 at different positions to connect the various branches of the stator winding.

[0031] A plurality of fixing members 2 are arranged on a side of the bus body 4 facing the conductor 3, and each fixing member 2 includes at least two fixing portions 20. The number of fixing portions 20 of each fixing member 2 is selected according to the width of the bus body 4 at the position where the fixing member 2 is arranged. When the width of the bus body 4 is small, the fixing member 2 located at this position can have two fixing portions 20. When the width of the bus body 4 is large, the fixing member 2 located at this position can have three or more fixing portions 20. The number of fixing portions 20 of each fixing member 2 is selected and set according to the actual structure of the bus body 4.

[0032] When multiple fixing members 2 are arranged along the length direction of the busbar body 4, they can be arranged at equal intervals or at non-equal intervals, depending on actual needs, and no specific requirements are made here.

[0033] The fixing member 2 is arranged to protrude from the side of the bus body 4 facing the conductor 3. After the welding member 5 is connected to the conductor 3, there is a gap between the side of the bus body 4 facing the conductor 3 and the end face of the conductor 3. The gap is small, so that the fixing member 2 can be inserted into the gaps between multiple conductors 3, so that the fixing part 20 fixes the conductor 3. By means of the mutual fixing effect between the fixing part 20 and the conductor 3, the fixing member 2 fixes the bus.

[0034] In each fixing member 2, two adjacent fixing portions 20 are arranged opposite to each other, and a gap is provided between the two adjacent fixing portions 20. The fixing portion 20 is inserted into the gaps between the plurality of conductors 3. The fixing portion 20 contacts the conductor 3 to block the conductor 3 so that the fixing portion 20 fixes the conductor 3. Moreover, due to the gap between the adjacent fixing portions 20, the insulating paint can penetrate into between the two adjacent fixing portions 20 during the paint dripping process so that the insulating paint is coated on the conductor 3. The fixing member 2 can achieve the penetration of the insulating paint while fixing the conductor 3, so that the process and cost are not increased during the installation and fixing process of the busbar 1.

[0035] The fixing part 20 is a columnar structure, and its cross-sectional shape can be square, circular, or other shapes, which can be selected according to actual needs, and no specific requirements are made here. The fixing part 20 is formed by the busbar body 4 extending in the direction of the conductor 3, and the fixing part 20 has a certain length, which is selected and set according to the length of the end of the conductor 3 without the insulating skin, so that when the fixing part 20 is inserted into the gap between multiple conductors 3, each fixing part 20 contacts with a conductor 3 respectively to fix the conductor 3.

[0036] In each fixing member 2, the distance between two adjacent fixing portions 20 is not less than the thickness of the two conductors 3. Since at the outlet end of the stator winding, along the radial direction of the stator core, two conductors 3 are grouped together, and the ends of the two conductors 3 are connected together to form a welding point, there is a gap between the two adjacent groups of conductors 3. When the fixing member 2 is inserted into a plurality of conductors 3, the ends of the two conductors 3 are accommodated between the two adjacent fixing portions 20. Each fixing portion 20 is located in the gap between the two groups of conductors 3. Each fixing portion 20 contacts a conductor 3 to fix the two connected conductors 3, that is, to fix the motor welding point. Therefore, the distance between the two adjacent fixing portions 20 is selected according to the thickness of the ends of the two connected conductors 3, and no specific requirements are made here. In order for the fixing portion 20 to be inserted into the gap between the two adjacent groups of conductors 3, the thickness of the fixing portion 20 corresponds to the size of the gap, and is selected according to the size of the gap between the conductors 3, so that the fixing portion 20 can be smoothly inserted into the gap between the two adjacent groups of conductors 3 without causing damage to the conductors 3.

[0037] In each fixing member 2, two adjacent fixing portions 20 are arranged in parallel, that is, along the length direction of the fixing portion 20, the distance between the two adjacent fixing portions 20 is the same, so that the contact between the fixing portion 20 and the conductor 3 is surface contact, so that the force on the conductor 3 is stable, so that the conductor 3 can be fixed in all aspects.

[0038] In each fixing member 2, multiple fixing portions 20 are arranged in sequence along the width direction of the bus body 4. When the number of the fixing portions 20 is multiple, the multiple fixing portions 20 are arranged at intervals, and the multiple fixing portions 20 are arranged linearly. The multiple fixing portions 20 can be arranged in a straight line, or the multiple fixing portions 20 can be arranged in a curve. It is selected according to actual needs. According to the installation method of the bus 1, the multiple fixing portions 20 in each fixing member 2 are arranged along the radial direction of the stator core, so that each fixing member 2 can fix the multiple conductors 3 in any diameter direction of the stator core.

[0039] Along the length direction of the bus body 4, the number of fixing portions 20 of the fixing parts 2 located at the two ends of the bus body 4 is less than the number of fixing portions 20 of the fixing parts 2 located in the middle of the two ends, that is, the width of the two ends of the bus body 4 is less than the width between the two ends. According to the structure of the bus body 4, the number of fixing portions 20 in the fixing parts 2 at the two ends of the bus body 4 is less, which can be two, and the number of fixing portions 20 in the fixing parts 2 located in the middle of the two ends of the bus body 4 is more, which can be three.

[0040] According to a further optimization scheme, the fixing part 2 also includes a connecting part, one side of which is connected to the bus body 4, and multiple fixing parts 20 are arranged on the other side of the connecting part. The connecting part is a block structure. The setting of the connecting part facilitates the installation of multiple fixing parts 20. The connecting part protrudes from the side of the bus body 4 facing the conductor 3. The thickness of the connecting part is adapted to the thickness of the fixing part 20, so that the overall structure of the fixing part 2 is simple and stable. Along the length direction of the fixing part 20, the length of the connecting part is selected according to actual needs, and no specific requirements are made here.

[0041] When multiple fixings 2 are connected to the bus body, the connecting parts of each fixing 2 are connected together to form a strip-shaped overall structure with a certain length. The length of the strip-shaped overall structure is adapted to the length of the bus body. Each fixing 2 is arranged in sequence along the length direction of the strip-shaped overall structure, so that multiple fixings 2 form an overall structure, thereby making the overall structure of the bus fixing structure simple, so that multiple fixings 2 can be connected to the bus body, and the bus body is embedded in one side surface of the strip-shaped overall structure.

[0042] like Figure 4 As shown, the above-mentioned bus body includes a terminal bus 40 and a star-point bus 41 connected to each other, the star-point bus 41 is arranged on one side of the terminal bus 40, and multiple fixings 2 are arranged on the other side of the terminal bus 40, that is, the star-point bus 41, the terminal bus 40 and the bus fixing structure are arranged in sequence along the axial square of the stator core, the terminal bus 40 is connected to the connecting parts of each fixing part, and the terminal bus 40 is embedded in the strip-shaped overall structure formed by the connecting parts of each fixing part 2.

[0043] Both the star point bus 41 and the terminal bus 40 are provided with a plurality of welding parts 5, both of which are used to connect with the lead wires of each phase of the stator winding; specifically, the star point bus 41 includes a star point body and a plurality of welding parts 5 arranged on both sides of the star point body, the star point body has a certain length, and is arranged along the length direction of the strip-shaped overall structure of the bus fixing structure, and a plurality of welding parts 5 are arranged on both sides of the star point body respectively, so as to be connected with the lead wires of each phase; the terminal bus 40 includes a body and welding parts 5 arranged on both sides of the body, the body has a certain length, and is arranged along the length direction of the strip-shaped overall structure of the bus fixing structure, and a plurality of welding parts 5 are arranged on both sides of the body respectively, so as to be connected with the lead wires of each phase, and the terminal bus 40 has terminals of each phase, and the terminals of each phase are connected to the body.

[0044] A busbar comprises the above-mentioned flat wire motor stator busbar fixing structure.

[0045] A motor comprises the above-mentioned busbar.

[0046] During the installation and fixing process of the busbar 1 of the flat wire motor stator busbar fixing structure, each fixing piece 2 is inserted into a plurality of conductors 3 at the outlet end of the stator winding, and two adjacent fixing parts 20 of each fixing piece 2 have two conductors 3 connected together and arranged in a group, and the two adjacent fixing parts 20 are respectively in contact with the two outer side surfaces of the two conductors 3 connected together, so that the two adjacent fixing parts 20 fix the group of conductors 3 from both sides. When a fixing piece 2 includes a plurality of fixing parts 3, the fixing piece 2 can fix a plurality of groups of conductors 3 along the radial direction of the stator core, and a plurality of fixing pieces 2 fix different conductors 3 from different positions, thereby fixing the busbar 1 on the outlet end of the stator, thereby fixing the busbar 1, ensuring that the busbar and the conventional welding points of the motor are fixed at multiple locations, and at the same time ensuring the penetration of insulating paint in the subsequent paint dripping process, so that the busbar and the conventional welding points are connected as one, ensuring the strength and stability of the busbar structure, and not increasing the process and cost.

[0047] Due to the adoption of the above technical scheme, the flat wire motor stator bus fixing structure has multiple fixings, and the multiple fixings are arranged in sequence along the length direction of the bus body, and the multiple fixings can be inserted into the multiple conductors of the output end of the stator winding during the bus installation process. Each fixing includes at least two fixing parts, and there is a gap between two adjacent fixing parts. When the fixing is inserted into the conductor, two conductors connected together and arranged in a group are located in the gap between two adjacent fixing parts, and each fixing part contacts a conductor to fix the conductor, thereby realizing the fixing of the bus by multiple fixings. During the installation of the bus, the fixings increase the fixing strength of the bus, optimize the strength of the bus from a structural point of view, and improve the structural strength of the bus without increasing the process. Under the premise of not increasing the process, the structural strength of the bus is improved to meet the motor vibration test requirements; the arrangement of multiple fixings can ensure that the bus and the conventional welding points of the motor are fixed at multiple locations, and there is a gap between two adjacent fixing parts, which can ensure the penetration of insulating paint in the subsequent paint dripping process, so that the bus and the conventional welding points are connected as one, ensuring the strength and stability of the bus structure, and not increasing other processes and costs during the installation of the bus.

[0048] The above is a detailed description of the embodiments of the utility model, but the contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A flat wire motor stator busbar fixing structure, characterized in that: It comprises a plurality of fixing members, which are arranged on the busbar body and are arranged in sequence along the length direction of the busbar body to fix the busbar; The fixing member is arranged on a side of the busbar body facing the conductor, and the fixing member comprises at least two fixing parts arranged at intervals to fix the conductor.

2. The flat wire motor stator busbar fixing structure according to claim 1, characterized in that: Two adjacent fixing parts are arranged opposite to each other, and a gap is provided between the two adjacent fixing parts, so as to accommodate and fix the conductor and facilitate the penetration of insulating paint.

3. The flat wire motor stator busbar fixing structure according to claim 1 or 2, characterized in that: When there are multiple fixing parts, the multiple fixing parts are arranged at intervals and are arranged linearly.

4. The flat wire motor stator busbar fixing structure according to claim 3, characterized in that: The plurality of fixing parts are arranged in sequence along the radial direction of the stator core, and two adjacent fixing parts are arranged in parallel.

5. The flat wire motor stator busbar fixing structure according to any one of claims 1 to 2 and 4, characterized in that: The fixing portion is formed by extending the busbar body toward the conductor.

6. The flat wire motor stator busbar fixing structure according to claim 5, characterized in that: The fixing member further comprises a connecting portion, one side of which is connected to the busbar body, and a plurality of fixing portions are arranged on the other side of the connecting portion.

7. The flat wire motor stator busbar fixing structure according to any one of claims 1-2, 4 and 6, characterized in that: Along the length direction of the busbar body, the number of fixing parts of the fixing piece located at both ends of the busbar body is less than the number of fixing parts of the fixing piece located between the two ends.

8. The flat wire motor stator busbar fixing structure according to claim 7, characterized in that: The busbar body comprises a terminal busbar and a star-point busbar connected to each other. The star-point busbar is arranged on one side of the terminal busbar, and the plurality of fixing members are arranged on the other side of the terminal busbar.

9. A busbar, characterized in that: It comprises the flat wire motor stator busbar fixing structure as described in any one of claims 1-8.

10. A motor, characterized in that: Comprising the busbar as claimed in claim 9.

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