Flat wire motor end connection device and flat wire motor

Abstract

The present invention relates to the technical field of flat wire motors, and particularly to an end connection device for a flat wire motor and a flat wire motor. Among them, an end connection device for a flat wire motor includes a lead connection copper bar, a lead connection member, and a three-phase parallel connection copper bar. The lead connection copper bar is respectively connected to the three-phase leads of the stator winding and the lead connection member, and the lead connection member is used to connect to the DC bus of the controller; the three-phase parallel connection copper bar is connected to the neutral point lead of the stator winding, and the three-phase parallel connection copper bar is used to reduce the current density per unit cross-section. A sensor fixing rod for fixing a temperature sensor is provided on the three-phase parallel connection copper bar, and the temperature sensor is used to monitor the temperatures of the lead connection copper bar, the lead connection member, the three-phase parallel connection copper bar, and the stator winding. The end connection device for a flat wire motor and the flat wire motor provided by the present invention have a simple structure, and while monitoring the temperature of the stator winding, they improve the problems of circulating current and heating of the flat wire motor when passing through a large current.

Description

Technical Field

[0001] The present invention relates to the technical field of flat wire motors, and particularly to an end connection device for a flat wire motor and a flat wire motor. Background Art

[0002] The difference between a flat wire motor and a round wire motor lies in the forming method of the copper wire. The flat wire is beneficial to improving the slot fill factor of the motor. Generally, the slot fill factor of a round wire motor is about 40%, while the slot fill factor of a flat wire motor can reach more than 60%. The improvement of the slot fill factor means that more copper wires can be filled under the premise of unchanged space, generating a stronger magnetic field intensity and improving the power density.

[0003] With the development of new energy vehicle drive motor technology, the demand for flat wire motors is becoming stronger and stronger. Due to its advantages such as high power density, low cost, and good temperature performance, the flat wire motor is becoming the focus of development in the field of new energy drive motors. However, due to the large manufacturing difficulty and poor accuracy of the stator end connection device of the flat wire motor, it restricts the large-scale use of the flat wire motor in new energy vehicles.

[0004] In the prior art, the stator end connection device of the flat wire motor uses enameled flat copper wire bending or copper busbar connection. However, the enameled flat copper wire bending has large manufacturing difficulty and will also damage the enameled skin, destroying the insulation performance. And the copper busbar becomes a better choice due to its good manufacturability, but its connection method is limited by the end space, and its ability to pass large current under multi-branch winding is limited, resulting in heat generation, destroying the insulation and even burning out the motor. Although the Chinese patent application (publication number CN111245135A) discloses an end connection device for a flat wire motor winding, which reduces the manufacturing complexity of the flat wire motor end connection device, the technical solution disclosed therein still has not improved the problem of heat generation caused by large current passing. Summary of the Invention

[0005] To solve the above-mentioned deficiency of heat generation caused by large current passing in the case of using a copper busbar at the end of the flat wire motor in the prior art, the end connection device for a flat wire motor and the flat wire motor provided by the present invention can improve the large current passing ability of the copper busbar in a limited space and avoid the motor from being burned out.

[0006] An end connection device for a flat wire motor provided by the present invention includes a lead connection copper busbar, a lead connection member, and a three-phase parallel copper busbar. The lead connection copper busbar is respectively connected to the three-phase lead wires of the stator winding and the lead connection member, and the lead connection member is used to connect to the DC busbar of the controller; the three-phase parallel copper busbar is connected to the neutral point lead wire of the stator winding, and the three-phase parallel copper busbar is used to reduce the current density per unit cross-section. A sensor fixing rod for fixing a temperature sensor is provided on the three-phase parallel copper busbar, and the temperature sensor is used to monitor the temperatures of the lead connection copper busbar, the lead connection member, the three-phase parallel copper busbar, and the stator winding.

[0007] Further, the lead wire connecting copper bar includes a winding connecting foot, a lead wire connecting surface and a bus bar which are connected. The lead wire connecting surface protrudes relatively from the winding connecting foot and the bus bar, and the cross section of the lead wire connecting surface is an inverted rounded rectangle with an opening; the winding connecting foot is connected to the three-phase lead wires of the stator winding, the lead wire connecting surface is used for connecting with the lead wire connecting member, and the bus bar is used for the current of the stator winding to pass through.

[0008] Further, the lead wire connecting member includes a copper bar connecting member and a lead wire connecting terminal which are connected, and the copper bar connecting member is connected to the lead wire connecting surface.

[0009] Further, the copper bar connecting member is made of a copper core, and an insulating layer is provided on the lead wire connecting terminal, and the insulating layer is an insulating sleeve made of cross-linked polyethylene.

[0010] Further, an insulating powder is integrally coated on the lead wire connecting copper bar, the copper bar connecting member and the three-phase parallel-connected copper bar.

[0011] Further, the three-phase parallel-connected copper bar includes an outer three-phase parallel-connected copper bar and an inner three-phase parallel-connected copper bar. The outer three-phase parallel-connected copper bar and the inner three-phase parallel-connected copper bar are vertically arranged relative to the end of the stator winding, and the outer three-phase parallel-connected copper bar is arranged outside the end of the stator winding; the inner three-phase parallel-connected copper bar is arranged inside the end of the stator winding.

[0012] Further, the outer three-phase parallel-connected copper bar includes an outer winding connecting foot, an outer bus bar and a first sensor fixing rod which are connected. The outer winding connecting foot is connected to the neutral point lead wire of the stator winding, and the outer bus bar is used for the current of the stator winding to pass through.

[0013] Further, the inner three-phase parallel-connected copper bar includes an inner winding connecting foot, an inner bus bar and a second sensor fixing rod which are connected. The inner winding connecting foot is connected to the neutral point lead wire of the stator winding, and the inner bus bar is used for the current of the stator winding to pass through.

[0014] Further, the sensor fixing rod includes the first sensor fixing rod and the second sensor fixing rod, and the temperature sensor is arranged on the first sensor fixing rod and / or the second sensor fixing rod through a fixing sleeve.

[0015] The present invention also provides a flat wire motor, including a stator, and the end of the stator adopts a flat wire motor end connection device as described in any one of the above.

[0016] Compared with the prior art, a flat wire motor end connection device and a flat wire motor provided by the present invention have a simple structure. By setting that the lead connection copper bar is respectively connected to the three-phase lead-out wires of the stator winding and the lead-out wire connecting part, the lead-out wire connecting part is connected to the DC bus of the controller, the three-phase parallel-connected copper bar is connected to the neutral point lead-out wire of the stator winding, the three-phase parallel-connected copper bar reduces the current density per unit cross-section, the temperature sensor is fixed on the sensor fixing rod of the three-phase parallel-connected copper bar, while monitoring the temperatures of the first copper bar, the lead-out wire connecting part, the three-phase parallel-connected copper bar and the stator winding, it can also improve the problems of circulating current and heat generation of the flat wire motor passing through large current, and avoid the motor from being burned out and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of the flat wire motor end connection device provided by the present invention;

[0019] Figure 2 It is an exploded view of the flat wire motor end connection device provided by the present invention;

[0020] Figure 3 It is a schematic structural diagram of the lead connection copper bar provided by the present invention;

[0021] Figure 4 It is a schematic structural diagram of the lead-out wire connecting part provided by the present invention;

[0022] Figure 5 It is a schematic structural diagram of the outer layer three-phase parallel-connected copper bar provided by the present invention;

[0023] Figure 6 It is a schematic structural diagram of the inner layer three-phase parallel-connected copper bar provided by the present invention.

[0024] Reference numerals:

[0025] 10 Lead connection copper bar 11 Winding connection foot 12 Lead-out wire connection surface

[0026] 13 Busbar 20 Lead-out wire connecting part 21 Copper bar connecting part

[0027] 22 Lead-out wire connection terminal 23 Insulation layer 24 Protection sleeve

[0028] 30 Three-phase parallel-connected copper bar 31 Outer layer three-phase parallel-connected copper bar 311 Outer layer winding connection foot

[0029] 312 Outer busbar, 313 First sensor fixing rod, 32 Inner three-phase parallel-connected copper bar

[0030] 321 Inner winding connection foot, 322 Inner busbar, 323 Second sensor fixing rod

[0031] 40 Stator winding, 50 Temperature sensor, 51 Fixed sleeve Specific implementation mode

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is 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, and thus cannot be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0034] Figure 1 The structural schematic diagram of the end connection device of the flat wire motor provided by the present invention is as Figure 1 shown. A kind of end connection device of the flat wire motor provided by the present invention includes an outgoing line connection copper bar 10, an outgoing line connector 20 and a three-phase parallel-connected copper bar 30. The outgoing line connection copper bar 10 is respectively connected to the three-phase outgoing lines of the stator winding 40 and the outgoing line connector 20, and the outgoing line connector 20 is used to connect to the DC bus of the controller;

[0035] The three-phase parallel-connected copper bar 30 is connected to the neutral point outgoing line of the stator winding 40. The three-phase parallel-connected copper bar 30 is used to reduce the current density per unit cross-section. A sensor fixing rod for fixing the temperature sensor 50 is provided on the three-phase parallel-connected copper bar 30, and the temperature sensor 50 is used to monitor the temperatures of the outgoing line connection copper bar 10, the outgoing line connector 20, the three-phase parallel-connected copper bar 30 and the stator winding 40.

[0036] During specific implementation, as Figure 1 、Figure 2 As shown, the lead connecting busbar 10 is respectively connected to the three-phase lead-out wires of the stator winding 40 and the lead-out wire connecting member 20. The lead-out wire connecting member 20 is used to connect to the DC busbar of the controller. The three-phase parallel-connected busbar 30 is connected to the neutral point lead-out wire of the stator winding 40. A sensor fixing rod for fixing the temperature sensor 50 is also provided on the three-phase parallel-connected busbar 30. The temperature sensor 50 is used to monitor the temperatures of the lead connecting busbar 10, the lead-out wire connecting member 20, the three-phase parallel-connected busbar 30, and the stator winding 40. The three-phase parallel-connected busbar 30 is used to reduce the current density per unit cross-section to change the circulating current and heating phenomena of the flat wire motor.

[0037] As Figure 1 , Figure 2 , Figure 3 As shown, the lead connecting busbar 10 is vertically arranged relative to the end of the stator winding 40. There are multiple lead connecting busbars 10. The lead connecting busbar 10 includes a connected winding connecting foot 11, a lead-out wire connecting surface 12, and a busbar collector 13. Specifically, the winding connecting foot 11, the lead-out wire connecting surface 12, and the busbar collector 13 are in a mountain shape. The lead-out wire connecting surface 12 protrudes relatively from the winding connecting foot 11 and the busbar collector 13. The cross-section of the lead-out wire connecting surface 12 is a rounded rectangle with an opening.

[0038] The winding connecting foot 11 is connected to the three-phase lead-out wires of the stator winding 40. The lead-out wire connecting surface 12 is connected to the lead-out wire connecting member 20. The busbar collector 13 is for the current of the stator winding to pass through. Preferably, in this embodiment, the number of lead connecting busbars 10 is three. The winding connecting foot 11 is welded to the three-phase lead-out wires of the stator winding 40, and the lead-out wire connecting surface 12 is welded to the lead-out wire connecting member 20.

[0039] Specifically, as Figure 1 , Figure 2 , Figure 4 As shown, the lead-out wire connecting member 20 includes a connected busbar connecting member 21 and a lead-out wire connecting terminal 22. The busbar connecting member 21 is made of a rigid copper core. The busbar connecting member 21 is connected to the lead-out wire connecting surface 12. Preferably, in this embodiment, the busbar connecting member 21 is welded to the lead-out wire connecting surface 12. A protective sleeve 24 is provided at the welding connection position between the lead-out wire connecting terminal 22 and the lead-out wire connecting surface 12. The protective sleeve 24 is used to protect the welding connection position and insulate it.

[0040] An insulating layer 23 is sleeved on the lead-out wire connecting terminal 22. The insulating layer 23 is an insulating sleeve made of cross-linked polyethylene. The lead-out wire connecting terminal 22 protrudes relatively from the insulating layer 23 in a boss shape to facilitate the connection of the lead-out wire connecting terminal 22 to the DC busbar of the controller. The lead-out wire connecting terminal 22 can effectively unload the assembly stress.

[0041] Preferably, in this embodiment, the number of the lead connectors 20 matches the lead connection copper bars 10, and both the lead connectors 20 and the lead connection copper bars 10 are vertically arranged relative to the end of the stator winding 40.

[0042] Preferably, the lead connection copper bars 10, the copper bar connectors 21, and the three-phase parallel-connected copper bars 30 are all integrally coated with insulating powder. The insulating powder can be the common insulating powder in the prior art and will not be elaborated here. The coating of the insulating powder can eliminate the insulating spacers, thereby reducing the processing and manufacturing costs and the mold opening costs.

[0043] As Figure 1 、 Figure 2 shown, the three-phase parallel-connected copper bars 30 include an outer three-phase parallel-connected copper bar 31 and an inner three-phase parallel-connected copper bar 32. Both the outer three-phase parallel-connected copper bar 31 and the inner three-phase parallel-connected copper bar 32 are vertically arranged relative to the end of the stator winding 40. The outer three-phase parallel-connected copper bar 31 is arranged on the outer circumference of the end of the stator winding 40, and the inner three-phase parallel-connected copper bar 32 is arranged on the inner circumference of the end of the stator winding 40. Both the outer three-phase parallel-connected copper bar 31 and the inner three-phase parallel-connected copper bar 32 are connected to the neutral point lead of the stator winding 40. The outer three-phase parallel-connected copper bar 31 and the inner three-phase parallel-connected copper bar 32 multi-branch separate the confluence of the neutral point of the stator winding 40, effectively reducing the current density per unit cross-section, thereby improving the problems of circulating current and heating of the flat wire motor when passing through a large current.

[0044] Specifically, as Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 shown, the outer three-phase parallel-connected copper bar 31 includes the connected outer winding connection feet 311, the outer bus bar 312, and the first sensor fixing rod 313. The outer winding connection feet 311, the outer bus bar 312, and the first sensor fixing rod 313 are all relatively arranged on the outer circumference of the end of the stator winding 40. The outer winding connection feet 311 are connected to the neutral point lead of the stator winding 40, and the outer bus bar 312 is used for the current of the stator winding 40 to pass through;

[0045] The inner three-phase parallel-connected copper bar 32 includes the connected inner winding connection feet 321, the inner bus bar 322, and the second sensor fixing rod 323. The inner winding connection feet 321, the inner bus bar 322, and the second sensor fixing rod 323 are all relatively arranged on the inner circumference of the end of the stator winding 40. The inner winding connection feet 321 are connected to the neutral point lead of the stator winding 40, and the inner bus bar 322 is used for the current of the stator winding to pass through.

[0046] As Figure 5 、 Figure 6As shown in the figure, the sensor fixing rod includes a first sensor fixing rod 313 and a second sensor fixing rod 323. The first sensor fixing rod 313 is disposed on the outer-layer three-phase parallel-connected copper bar 31. Preferably, in this embodiment, the first sensor fixing rod 313 is located at the right end of the outer-layer three-phase parallel-connected copper bar 31. The second sensor fixing rod 323 is disposed on the inner-layer three-phase parallel-connected copper bar 32. Preferably, in this embodiment, the second sensor fixing rod 323 is located at the left end of the inner-layer three-phase parallel-connected copper bar 32.

[0047] The temperature sensor 50 is fixed to the first sensor fixing rod 313 and / or the second sensor fixing rod 323 through a fixing sleeve 51. The temperature sensor 50 is used to monitor the temperature and heat generation conditions of the lead connection copper bar 10, the lead connection member 20, the three-phase parallel-connected copper bar 30, and the stator winding 40. Preferably, the temperature sensor 50 is a common temperature sensor in the prior art and will not be elaborated here.

[0048] For the flat wire motor end connection device provided by the present invention, during actual connection, as Figure 1 to Figure 6 shown in the figure, first, the outer-layer three-phase parallel-connected copper bar 31 is disposed on the outer circumference of the end of the stator winding 40. The outer-layer winding connection foot 311 is welded to the neutral point of the stator winding 40. The inner-layer three-phase parallel-connected copper bar 32 is disposed on the inner circumference of the end of the stator winding 40. The inner-layer winding connection foot 321 is welded to the neutral point of the stator winding 40. During the actual operation of the flat wire motor, the neutral point separation and current collection of the stator winding 40 can effectively reduce the current density per unit cross-section and improve the circulating current and heat generation of the flat wire motor.

[0049] The lead connection copper bar 10 is disposed vertically at the end of the stator winding 40. The winding connection foot 11 is welded to the three-phase lead wires of the stator winding 40. The lead connection surface 12 is welded to the copper bar connection member 21. The lead connection terminal 22 is connected to the DC bus of the controller. During the actual operation of the flat wire motor, the current of the stator winding 40 passes through the bus bar 13, the outer-layer bus bar 312, and the inner-layer bus bar 322.

[0050] Next, insulating powder is coated on the lead wire connecting copper busbar 10, copper busbar connector 21, outer layer three-phase parallel-connected copper busbar 31, and inner layer three-phase parallel-connected copper busbar 32 to achieve insulation between electrical components. Then, a protective sleeve 24 is sleeved on the welding connection position between the lead wire connection surface 12 and the copper busbar connector 21 to protect the welding connection position and insulate it. After the insulating powder coating is completed, the temperature sensor 50 is fixed to the first sensor fixing rod 313 and / or the second sensor fixing rod 323 through the fixing sleeve 51. When the flat wire motor is running, the temperature sensor 50 can monitor the temperatures and heat generation conditions of the lead wire connecting copper busbar 10, lead wire connector 20, outer layer three-phase parallel-connected copper busbar 31, inner side three-phase parallel-connected copper busbar 32, and stator winding 40, so as to give early warnings or make corresponding treatments in time.

[0051] Compared with the prior art, a flat wire motor end connection device provided by the present invention has a simple structure. By setting the lead wire connecting copper busbar to be respectively connected to the three-phase lead wires of the stator winding and the lead wire connector, the lead wire connector is connected to the DC busbar of the controller, and the three-phase parallel-connected copper busbar is connected to the neutral point lead wire of the stator winding. The three-phase parallel-connected copper busbar can reduce the current density per unit cross-section. The temperature sensor is fixed on the sensor fixing rod of the three-phase parallel-connected copper busbar. While monitoring the temperatures of the first copper busbar, the lead wire connector, the three-phase parallel-connected copper busbar, and the stator winding, it can also improve the problems of circulating current and heat generation when a large current passes through the flat wire motor, and avoid the motor from being burned out and damaged.

[0052] The present invention also provides a flat wire motor, including a stator, and the end of the stator adopts a flat wire motor end connection device as described in any one of the above.

[0053] Compared with the prior art, a flat wire motor end connection device and a flat wire motor provided by the present invention have a simple structure. By setting the lead wire connecting copper busbar to be respectively connected to the three-phase lead wires of the stator winding and the lead wire connector, the lead wire connector is connected to the DC busbar of the controller, and the three-phase parallel-connected copper busbar is connected to the neutral point lead wire of the stator winding. The three-phase parallel-connected copper busbar reduces the current density per unit cross-section. The temperature sensor is fixed on the sensor fixing rod of the three-phase parallel-connected copper busbar. While monitoring the temperatures of the first copper busbar, the lead wire connector, the three-phase parallel-connected copper busbar, and the stator winding, it can also improve the problems of circulating current and heat generation when a large current passes through the flat wire motor, and avoid the motor from being burned out and damaged.

[0054] Although terms such as lead wire connecting copper busbar, winding connection foot, busbar, lead wire connector, outer layer three-phase parallel-connected copper busbar, and inner layer three-phase parallel-connected copper busbar are used more in this article, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A flat wire motor end connection device, characterized in that: It includes a lead-out wire connecting copper bar (10), a lead-out wire connecting member (20) and a three-phase parallel-connected copper bar (30). The lead-out wire connecting copper bar (10) is respectively connected to the three-phase lead-out wires of the stator winding (40) and the lead-out wire connecting member (20), and the lead-out wire connecting member (20) is used to connect to the DC bus of the controller; The three-phase parallel-connected copper bar (30) is connected to the neutral point lead-out wire of the stator winding (40). The three-phase parallel-connected copper bar (30) is used to reduce the current density per unit cross-section. A sensor fixing rod for fixing a temperature sensor (50) is provided on the three-phase parallel-connected copper bar (30), and the temperature sensor (50) is used to monitor the temperatures of the lead-out wire connecting copper bar (10), the lead-out wire connecting member (20), the three-phase parallel-connected copper bar (30) and the stator winding (40); The lead-out wire connecting copper bar (10) includes a winding connecting foot (11) connected in a mountain shape, a lead-out wire connecting surface (12) and a bus bar (13). The lead-out wire connecting surface (12) protrudes relatively from the winding connecting foot (11) and the bus bar (13); The three-phase parallel-connected copper bar (30) includes an outer-layer three-phase parallel-connected copper bar (31) and an inner-layer three-phase parallel-connected copper bar (32). The outer-layer three-phase parallel-connected copper bar (31) and the inner-layer three-phase parallel-connected copper bar (32) are vertically arranged relative to the end of the stator winding (40). The outer-layer three-phase parallel-connected copper bar (31) is arranged outside the end of the stator winding (40), and the inner-layer three-phase parallel-connected copper bar (32) is arranged inside the end of the stator winding (40); The outer-layer three-phase parallel-connected copper bar (31) includes a connected outer-layer winding connecting foot (311), an outer-layer bus bar (312) and a first sensor fixing rod (313). The outer-layer winding connecting foot (311) is connected to the neutral point lead-out wire of the stator winding (40), and the outer-layer bus bar (312) is for the current of the stator winding (40) to pass through; The inner-layer three-phase parallel-connected copper bar (32) includes a connected inner-layer winding connecting foot (321), an inner-layer bus bar (322) and a second sensor fixing rod (323). The inner-layer winding connecting foot (321) is connected to the neutral point lead-out wire of the stator winding (40), and the inner-layer bus bar (322) is for the current of the stator winding (40) to pass through.

2. The end connection device of a flat wire motor according to claim 1, characterized in that: The cross-section of the lead-out wire connecting surface (12) is a reverse-rounded rectangle with an opening; the winding connecting foot (11) is connected to the three-phase lead-out wires of the stator winding (40), the lead-out wire connecting surface (12) is used to connect to the lead-out wire connecting member (20), and the bus bar (13) is for the current of the stator winding (40) to pass through.

3. The end connection device of a flat wire motor according to claim 2, wherein: The lead-out wire connecting member (20) includes a connected copper bar connecting member (21) and a lead-out wire connecting terminal (22), and the copper bar connecting member (21) is connected to the lead-out wire connecting surface (12).

4. A flat wire motor end connection device according to claim 3, characterized in that: The copper bar connecting member (21) is made of a copper core, and an insulating layer (23) is sleeved on the lead-out wire connecting terminal (22). The insulating layer (23) is an insulating sleeve made of cross-linked polyethylene.

5. The end connection device of a flat wire motor according to claim 4, characterized in that: The lead-out wire connecting copper bar (10), the copper bar connecting member (21), and the three-phase parallel-connected copper bar (30) are all integrally coated with insulating powder.

6. The end connection device of a flat wire motor according to claim 5, characterized in that: The sensor fixing rod includes the first sensor fixing rod (313) and the second sensor fixing rod (323), and the temperature sensor (50) is disposed on the first sensor fixing rod (313) and / or the second sensor fixing rod (323) through a fixing sleeve (51).

7. A flat wire motor, characterized in that: It includes a stator, and the end of the stator adopts a flat wire motor end connection device according to any one of claims 1-6.

Images