Wire outlet structure for motor stator, motor stator, motor and vehicle

Abstract

The utility model discloses a wire outlet structure used for a motor stator, the motor stator, a motor and a vehicle, the wire outlet structure used for the motor stator comprises a connector wire end; the connector board end comprises a conductive copper bar and an insulating shell, the insulating shell is arranged outside the conductive copper bar in a sleeving manner, one end of the insulating shell is matched with the connector wire end in an inserting manner, the other end of the insulating shell is provided with an avoiding hole, and one end of the conductive copper bar is electrically connected with the connector wire end; the conductive piece is located outside the insulating shell, one end of the conductive piece is used for being electrically connected with a stator winding, and the other end of the conductive piece is connected with the other end of the conductive copper bar at the receding hole through a connecting piece. The wire outlet structure for the motor stator is convenient to mount and dismount, and ensures the sealing performance and the safety while ensuring the reliability of electrical connection.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and in particular to an outlet wire structure for a motor stator, a motor stator with the outlet wire structure for the motor stator, a motor with the electronic stator, and a vehicle with the motor. Background Art

[0002] In the prior art, the linear motor coil lead-out method is to lead out through a solid shaft through a slot on the main shaft, and the sealing method is to fill the receiving groove with glue, which also has the effect of fixing the connector. It is inconvenient to install and disassemble, and the sealing effect is poor. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a wire outlet structure for a motor stator, which is easy to install and remove, and ensures both sealing and safety while ensuring electrical connection reliability.

[0004] According to an embodiment of the present invention, the wire output structure for a motor stator includes: a connector wire end; a connector board end, the connector board end including a conductive copper busbar and an insulating shell, the insulating shell being sleeved over the conductive copper busbar, one end of the insulating shell being plugged into and mated with the connector wire end, the other end of the insulating shell being provided with a relief hole, one end of the conductive copper busbar being electrically connected to the connector wire end; and a conductive member, the conductive member being located outside the insulating shell, one end of the conductive member being used to be electrically connected to a stator winding, the other end of the conductive member being connected to the other end of the conductive copper busbar at the relief hole via a connector.

[0005] According to the wire outlet structure for the motor stator of the embodiment of the present invention, the connector wire end is plugged into and matched with the connector board end, so that the entire wire outlet structure has higher flexibility and detachability. By providing a conductive member, one end of the conductive member is electrically connected to the stator winding, and the other end is connected to the other end of the conductive copper busbar at the avoidance hole through a connector, so that the current can flow smoothly from the conductive copper busbar to the stator winding, thereby driving the motor to work normally. This connection method is simple, reliable, and easy to install and disassemble. While ensuring the reliability of the electrical connection, it also ensures sealing and safety.

[0006] According to some embodiments of the present invention, the conductive copper busbar includes a copper busbar main body and a copper busbar connecting portion. The copper busbar main body extends along the length direction of the insulating shell. One end of the copper busbar main body is electrically connected to the connector wire end. The copper busbar connecting portion is bent and connected to the other end of the copper busbar main body. The copper busbar connecting portion is provided with a first connecting hole for passing the connecting piece.

[0007] According to some embodiments of the present invention, the wire output structure for the motor stator, the copper busbar connecting portion includes a first plate segment and a second plate segment, one end of the first plate segment is bent and connected to the copper busbar main body, the second plate segment is bent and connected to the other end of the first plate segment, the second plate segment is fitted and connected to the other end of the conductive member, and the first connecting hole is provided in the second plate segment.

[0008] According to some embodiments of the present invention, in the wire output structure for a motor stator, the conductive copper bar and the conductive member are both multiple and arranged in one-to-one correspondence, the copper bar main bodies of the multiple conductive copper bars are distributed side by side, and the copper bar connecting parts of the multiple conductive copper bars are evenly spaced and distributed in the circumferential direction of the insulating shell.

[0009] According to some embodiments of the present invention, in the wire output structure for a motor stator, a plurality of insertion sleeves are provided in one end of the insulating shell, and the copper bar main bodies of the plurality of the conductive copper bars are inserted through the plurality of the insertion sleeves in a one-to-one correspondence.

[0010] According to some embodiments of the present invention, the wire outlet structure for the motor stator, the insulating shell includes a shell main body and a shell mounting portion, one end of the shell main body is plugged into and matched with the connector wire end, and the shell mounting portion is connected to the other end of the shell main body; wherein, the radial dimension of the shell mounting portion is greater than the radial dimension of the shell main body, the copper busbar main body is passed through the shell main body, the copper busbar connecting portion is located in the shell mounting portion, and the avoidance hole is provided in the shell mounting portion.

[0011] According to some embodiments of the present invention, the wire output structure for the motor stator includes a conductive plate portion, an intermediate plate portion and a connecting plate portion. The conductive plate portion is used to be connected to the stator winding, the intermediate plate portion is bent and connected between the conductive plate portion and the connecting plate portion, the connecting plate portion is adhered and connected to the conductive copper bus, and the connecting plate portion is provided with a second connecting hole for passing the connecting member.

[0012] According to some embodiments of the present invention, the wire output structure for the motor stator includes a first extension section and a second extension section, the first extension section is connected to the conductive plate section by a bending, the second extension section is connected to the connecting plate section by a bending, the first extension section is connected to the second extension section by a bending, and the extension direction of the first extension section forms an angle with the extension direction of the second extension section.

[0013] The utility model also provides a motor stator.

[0014] According to an embodiment of the present invention, a motor stator includes: a motor shaft, the motor shaft including a first shaft segment and a second shaft segment connected in an axial direction, a stator core and a stator winding being provided on the outside of the first shaft segment; and a wire output structure for a motor stator as described in any of the above items, wherein the connector board end is installed in the second shaft segment, and at least a portion of the connector wire end extends into the second shaft segment to be plugged into and mate with the connector board end.

[0015] According to the motor stator of some embodiments of the present invention, a positioning boss is formed at the connection between the first shaft segment and the second shaft segment, a positioning groove is formed at the other end of the insulating shell, the avoidance hole is provided on the peripheral wall of the positioning groove, and the positioning boss extends into the positioning groove and is positioned and matched with the insulating shell.

[0016] According to the motor stator of some embodiments of the present invention, the height of the positioning boss along the axial direction of the motor shaft is H, and the depth of the positioning groove along the axial direction of the motor shaft is h, and they satisfy: h>H+10mm.

[0017] According to some embodiments of the present invention, a motor stator is provided with a first sealing member between the connector wire end and the inner peripheral wall of the second shaft segment;

[0018] And / or, a second sealing member is provided between the insulating shell and the inner circumferential wall of the second shaft segment.

[0019] The utility model also provides a motor.

[0020] The motor according to the embodiment of the present invention is provided with any one of the motor stators described above.

[0021] The utility model also provides a vehicle.

[0022] A vehicle according to an embodiment of the present invention is provided with any one of the motors described above.

[0023] The motor stator, the motor, the vehicle and the above-mentioned wire outlet structure for the motor stator have the same advantages as those in the prior art, which will not be described in detail here.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 is a schematic structural diagram of a motor according to some embodiments of the present utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the motor stator according to some embodiments of the present invention. Figure 1 ;

[0028] Figure 3 This is a schematic diagram of the structure of the motor stator according to some embodiments of the present invention. Figure 2 ;

[0029] Figure 4 yes Figure 3 Cross-sectional view at AA;

[0030] Figure 5 yes Figure 4 Enlarged view at point A;

[0031] Figure 6 yes Figure 4 Enlarged view at point B;

[0032] Figure 7 This is a schematic diagram of the structure of the connector board end according to some embodiments of the present invention. Figure 1 ;

[0033] Figure 8 yes Figure 7 Cross-section at BB;

[0034] Figure 9 Schematic diagram of the structure of the connector board end according to some embodiments of the present invention Figure 2 ;

[0035] Figure 10 is a cross-sectional view of the assembly of a connector board end and a conductive member according to some embodiments of the present invention;

[0036] Figure 11 is a schematic structural diagram of a conductive copper busbar according to some embodiments of the present invention;

[0037] Figure 12 yes Figure 11 Enlarged view at point C;

[0038] Figure 13 Schematic diagram of the structure of the conductive copper busbar according to other embodiments of the present invention;

[0039] Figure 14 This is a schematic diagram of the structure of the conductive member according to the embodiment of the utility model Figure 1 ;

[0040] Figure 15 This is a schematic diagram of the structure of the conductive member according to the embodiment of the utility model Figure 2 ;

[0041] Figure 16This is a schematic diagram of the structure of the conductive member according to the embodiment of the utility model Figure 3 .

[0042] Reference numerals:

[0043] Motor 100, motor stator 101,

[0044] Connector wire end 1, connector board end 2, conductive copper busbar 21, copper busbar main body 211, copper busbar connecting portion 212, first plate segment 2121, second plate segment 2122, first connecting hole 2122a, insulating shell 22, penetrating sleeve 221, shell main body 222, shell mounting portion 223, positioning groove 224, avoidance hole 2241,

[0045] Conductive member 3, conductive plate portion 31, intermediate plate portion 32, first extension section 321, second extension section 322, connecting plate portion 33, second connecting hole 331,

[0046] Motor shaft 4, first shaft section 41, second shaft section 42, stator core 421, stator winding 422, positioning boss 43,

[0047] First sealing member 51 , second sealing member 52 , plug-in boss 53 , sealing boss 54 , first sealing groove 55 , second sealing groove 56 , and nut 57 . DETAILED DESCRIPTION

[0048] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0050] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0051] Reference below Figures 1-16 The invention provides a wire outlet structure for a motor stator according to an embodiment of the present invention. The wire outlet structure for a motor stator is easy to install and disassemble, and ensures sealing and safety while ensuring electrical connection reliability.

[0052] like Figures 1-16 As shown, the wire outlet structure for a motor stator according to one embodiment of the present invention includes: a connector wire terminal 1, a connector board terminal 2 and a conductive member 3.

[0053] Connector terminal 1 is the entrance for introducing current into the motor stator 101 and is mainly used to connect to an external circuit or power supply to achieve electrical connection, ensuring that the external current can be smoothly transmitted to the inside of the motor stator 101, thereby ensuring the normal operation of the motor stator 101.

[0054] The connector board end 2 includes a conductive copper busbar 21 and an insulating shell 22. The insulating shell 22 is sleeved on the conductive copper busbar 21. One end of the insulating shell 22 is plugged into the connector wire end 1. The other end of the insulating shell 22 is provided with an avoidance hole 2241. One end of the conductive copper busbar 21 is electrically connected to the connector wire end 1.

[0055] Specifically, the connector board end 2 is the core component of the outlet structure, which includes a conductive copper bus 21 and an insulating shell 22. The conductive copper bus 21 has good conductivity and is used to transmit current. One end of the conductive copper bus 21 is electrically connected to the plug-in wire end 1 so that current can flow from the connector wire end 1 to the conductive copper bus 21, thereby realizing current transmission. The insulating shell 22 is sleeved on the outside of the conductive copper busbar 21 to provide insulation and protection to prevent electrical short circuits and electric shock risks. One end of the insulating shell 22 is plugged into the connector wire terminal 1. For example, one end of the insulating shell 22 can be inserted into the connector wire terminal 1, or the connector wire terminal 1 can be inserted into one end of the insulating shell 22, or the two can be plugged into each other to achieve plug-in fit, thereby ensuring the stability and reliability of the electrical connection between the connector board terminal 2 and the connector wire terminal 1, and further ensuring that the entire motor stator 101 is connected to the external controller. Through plug-in fit, it is flexible and simple, and convenient to install and disassemble. An avoidance hole 2241 is provided at the other end of the insulating shell 22, that is, the end away from the connector wire terminal 1, to provide space for the connection between the conductive member 3 and the conductive copper busbar 21.

[0056] Furthermore, the conductive member 3 is located outside the insulating shell 22 , one end of the conductive member 3 is used to be electrically connected to the stator winding 422 , and the other end of the conductive member 3 is connected to the other end of the conductive copper bus 21 at the avoidance hole 2241 through a connector.

[0057] Specifically, the conductive member 3 is a component in the outgoing line structure used to electrically connect the stator winding 422 and the conductive copper busbar 21. The conductive member 3 is located outside the insulating shell 22 to facilitate connection with the conductive copper busbar 21 for electrical conduction. One end of the conductive member 3 is used to electrically connect to the stator winding 422, that is, the conductive member 3 can transmit current to the stator winding 422. The other end of the conductive member 3 is connected to the other end of the conductive copper busbar 21 at the avoidance hole 2241 through a connector. That is, the shape and size of the avoidance hole 2241 should be compatible with the connection between the conductive member 3 and the conductive copper busbar 21, so that the conductive member 3 and the conductive copper busbar 21 can be smoothly connected through connectors such as bolts, screws, and nuts, thereby allowing current to be smoothly transmitted from the conductive copper busbar 21 to the stator winding 422, driving the motor 100 to operate normally. This connection method is simple, reliable, and easy to install and disassemble. While ensuring the reliability of the electrical connection, it also ensures sealing and safety.

[0058] According to the wire outlet structure for the motor stator according to the embodiment of the present invention, the connector wire terminal 1 is plugged into the connector board terminal 2, so that the entire wire outlet structure has higher flexibility and detachability. By providing a conductive member 3, one end of the conductive member 3 is electrically connected to the stator winding 422, and the other end is connected to the other end of the conductive copper bus 21 at the avoidance hole 2241 through a connector, so that the current can flow smoothly from the conductive copper bus 21 to the stator winding 422, thereby driving the motor 100 to work normally. This connection method is simple, reliable, and easy to install and disassemble. While ensuring the reliability of the electrical connection, it also ensures sealing and safety.

[0059] In some embodiments, the conductive copper busbar 21 includes a copper busbar main body 211 and a copper busbar connecting portion 212. The copper busbar main body 211 extends along the length direction of the insulating shell 22. One end of the copper busbar main body 211 is electrically connected to the connector wire terminal 1. The copper busbar connecting portion 212 is bent and connected to the other end of the copper busbar main body 211. The copper busbar connecting portion 212 is provided with a first connecting hole 2122a for passing a connecting piece.

[0060] Specifically, if Figure 10 As shown, the insulating shell 22 is cylindrical, and may also be other shapes, for example, a rectangular body, an irregular shape, etc. The shape and size of the conductive copper bus 21 are adapted to the shape and size of the insulating shell 22, so that the conductive copper bus 21 can be inserted into the insulating shell 22, and the insulating shell 22 is sleeved outside the conductive copper bus 21, thereby achieving insulation and protection of the conductive copper bus 21.

[0061] Among them, the conductive copper busbar 21 includes a copper busbar main body 211 and a copper busbar connecting portion 212. As shown in the upper and lower directions in the figure, the copper busbar main body 211 is the upper part of the conductive copper busbar 21. The copper busbar main body 211 extends along the length direction of the insulating shell 22 to achieve reliable long-distance current transmission. Its upper end is electrically connected to the connector wire terminal 1, that is, the upper end of the copper busbar main body 211 can be inserted into the connector wire terminal 1 to achieve electrical connection with the connector wire terminal 1, so that current can be transmitted from the connector wire terminal 1 to the copper busbar main body 211, and then to the copper busbar connecting portion 212.

[0062] The copper busbar connection portion 212 is used to connect to the conductive member 3, such as Figure 11 As shown, the copper busbar connecting portion 212 is bent and connected to the lower end of the copper busbar main body 211, forming the bottom portion of the conductive copper busbar 21, so that the conductive copper busbar 21 can be flexibly connected to the conductive member 3. The copper busbar connecting portion 212 is also provided with a first connecting hole 2122a for passing a connecting member, that is, the first connecting hole is adapted to the shape and size of the connecting member. For example, the first connecting hole 2122a can be set as a threaded through hole, and the connecting member is set as a screw, bolt, nut, etc., so that the connecting member can be smoothly passed through the first connecting hole 2122a to achieve a reliable detachable connection, and the conductive copper busbar 21 and the conductive member 3 are reliably bolted and electrically connected, ensuring that the conductive copper busbar 21 and the conductive member 3 are firmly connected.

[0063] In some embodiments, the copper busbar connecting portion 212 includes a first plate segment 2121 and a second plate segment 2122, one end of the first plate segment 2121 is bent and connected to the copper busbar main body 211, the second plate segment 2122 is bent and connected to the other end of the first plate segment 2121, the second plate segment 2122 is fitted and connected to the other end of the conductive member 3, and the first connecting hole 2122a is provided in the second plate segment 2122.

[0064] Specifically, if Figure 12 As shown, the copper busbar connecting portion 212 includes a first plate segment 2121 and a second plate segment 2122. The end of the first plate segment 2121 close to the copper busbar main body 211 is bent and connected to the copper busbar main body 211, and the second plate segment 2122 is bent and connected to the end of the first plate segment 2121 away from the copper busbar main body 211. The second plate segment 2122 and the first plate segment 2121 can be bent at a 90-degree angle. Of course, other angles such as 70 degrees or 100 degrees can also be used. As shown in the figure, they are bent at a 90-degree angle. In this way, the second plate segment 2122 is closely connected to the other end of the conductive member 3, that is, the end close to the conductive copper busbar 21, thereby improving the stable connection effect.

[0065] A first connecting hole 2122a is provided on the second plate segment 2122, that is, at least a portion of the second plate segment 2122 is exposed from the avoidance hole 2241, so that the second plate segment 2122 can face the conductive member 3 and the surfaces are in contact with each other. A hole corresponding to the first connecting hole 2122a is provided on the conductive member 3, so that the connecting member can pass through the conductive member 3 and the second plate segment 2122 in sequence, thereby realizing a reliable and stable connection between the conductive member 3 and the conductive copper busbar 21.

[0066] In some embodiments, the conductive copper busbars 21 and the conductive members 3 are both arranged in multiple and one-to-one correspondence, the copper busbar main bodies 211 of the multiple conductive copper busbars 21 are distributed side by side, and the copper busbar connecting parts 212 of the multiple conductive copper busbars 21 are evenly spaced and distributed in the circumferential direction of the insulating shell 22.

[0067] That is to say, the number of conductive parts 3 of the conductive copper bus 21 can be set to two, three, four or even more, and multiple conductive copper buses 21 and multiple conductive parts 3 are connected one-to-one. In this way, the conductive copper bus 21 can have multiple copper bus connection parts 212, so that the conductive copper bus 21 can be connected to multiple conductive parts 3 at the same time at multiple connection points, further improving the connection reliability and stability, ensuring the stable transmission of current, and when a single conductive copper bus 21 or conductive part 3 is damaged and the connection fails, the other conductive copper buses 21 and the conductive parts 3 can still maintain a reliable connection.

[0068] Specifically, if Figure 11 As shown, three conductive copper bars 21 and three conductive members 3 are provided. It should be noted that the number of conductive copper bars 21 and conductive members 3 is not limited to that described in this embodiment and can be flexibly set according to actual needs. The more conductive copper bars 21 and conductive members 3 provided, the better the electrical connection effect. The copper bar bodies 211 of the three conductive copper bars 21 shown in the figure are arranged side by side, that is, the copper bar bodies 211 are arranged in parallel, and the thickness of the conductive copper bars 21 from top to bottom is the same. This can reduce their space occupation, improve space utilization, make the entire structure more compact, and facilitate manufacturing and installation.

[0069] The copper bar connecting portions 212 of the plurality of conductive copper bars 21 are evenly spaced and distributed in the circumferential direction of the insulating shell 22, that is, the plurality of copper bar connecting portions 212 are distributed in the circumferential direction and the distances between them are equal, for example Figure 11 As shown in the figure, the three copper busbar connecting parts 212 are evenly distributed at intervals of 120 degrees along the circumferential direction of the insulating shell 22. In this way, the conductive parts 3 can also be evenly spaced and distributed in the circumferential direction of the insulating shell 22, which can ensure the uniform distribution of current, reduce the loss and interference in current transmission, and at the same time, improve the safety and stability of the motor stator 101.

[0070] In some embodiments, a plurality of insertion sleeves 221 are disposed in one end of the insulating shell 22 , and the copper bar main bodies 211 of the plurality of conductive copper bars 21 are inserted through the plurality of insertion sleeves 221 in a one-to-one correspondence.

[0071] That is, two, three, four or even more insertion sleeves 221 can be set in one end of the insulating shell 22. The insertion sleeves 221 are used to insert the copper busbar body 211 of the conductive copper busbar 21. That is, the number of the insertion sleeves 221 should correspond to the number of the conductive copper busbars 21, so that the copper busbar body 211 shells of multiple conductive copper busbars 21 can be inserted into the multiple insertion sleeves 221 in a one-to-one correspondence, ensuring the stability of the position of the multiple copper busbar body 211, avoiding its tilting and shaking, and affecting the plug-in connection effect with the connector wire end 1.

[0072] Specifically, if Figure 10 As shown, three penetration sleeves 221 are provided in the upper end of the insulating shell 22. The three penetration sleeves 221 are distributed side by side in the insulating shell 22, and the penetration sleeves 221 partially extend out of the insulating shell 22. The copper busbar body 211 partially extends out of the insulating shell 22, so as to facilitate the plugging and matching of the copper busbar body 211 with the connector wire terminal 1.

[0073] In some embodiments, the insulating shell 22 includes a shell body portion 222 and a shell mounting portion 223, one end of the shell body portion 222 is plugged into and fitted with the connector wire terminal 1, and the shell mounting portion 223 is connected to the other end of the shell body portion 222; wherein, the radial dimension of the shell mounting portion 223 is greater than the radial dimension of the shell body portion 222, the copper busbar body portion 211 is passed through the shell body portion 222, the copper busbar connecting portion 212 is located in the shell mounting portion 223, and the avoidance hole 2241 is provided in the shell mounting portion 223.

[0074] Specifically, if Figure 8 As shown, the interior of the insulating shell 22 is a cavity. The insulating shell 22 includes a shell body 222 and a shell mounting portion 223. The shell body 222 is the upper portion of the insulating shell 22, and a plug-in boss 53 is formed on its outer peripheral wall. In this way, when the connector wire terminal 1 is actually plugged into the connector board end 2, the outer peripheral wall of the connector wire terminal 1 can be plugged into and pressed against the plug-in boss 53 to prevent the connector wire terminal 1 from being inserted too deeply. At the same time, the copper busbar body 211 extends into the interior of the connector wire terminal 1, thereby realizing the plug-in connection between the connector wire terminal 1 and the connector board end 2.

[0075] The shell mounting portion 223 is connected to the lower end of the shell main body 222. The extended length of the shell main body 222 corresponds to the copper busbar main body 211, so that the copper busbar main body 211 can be inserted into the shell main body 222. The radial dimension of the shell mounting portion 223 is larger than the radial dimension of the shell main body 222, that is, the radial dimension of the shell mounting portion 223 is adapted to the dimension of the copper busbar connecting portion 212, so that the copper busbar connecting portion 212 can be installed within the shell mounting portion 223, thereby achieving insulation and protection for the copper busbar connecting portion 212. The shell mounting portion 223 is provided with an avoidance hole 2241, which is adapted to the dimension of the second plate segment 2122. Alternatively, the dimension of the avoidance hole 2241 can be set slightly smaller than the dimension of the second plate segment 2122, so that the first connection hole 2122a on the second plate segment 2122 is exposed.

[0076] In actual design, the outermost surface of the second plate segment 2122 away from the axis of the insulating shell 22 can be set to not exceed the outer circumference of the shell mounting portion 223 to avoid affecting assembly.

[0077] In some embodiments, the conductive member 3 includes a conductive plate portion 31, an intermediate plate portion 32 and a connecting plate portion 33. The conductive plate portion 31 is used to be connected to the stator winding 422. The intermediate plate portion 32 is bent and connected between the conductive plate portion 31 and the connecting plate portion 33. The connecting plate portion 33 is fitted and connected to the conductive copper bus 21, and the connecting plate portion 33 is provided with a second connecting hole 331 for passing the connecting member.

[0078] Specifically, if Figure 14 As shown, the conductive member 3 includes a conductive plate portion 31, an intermediate plate portion 32 and a connecting plate portion 33. The conductive plate portion 31 and the connecting plate portion 33 extend vertically, and the intermediate plate portion 32 extends horizontally. Figure 16 As shown, the conductive member 3 can be made into a “concave” structure when viewed from the side, which is beneficial for the fitting connection between the connecting plate portion 33 and the second plate segment 2122 , as well as the connection between the conductive plate portion 31 and the stator winding 422 .

[0079] Among them, such as Figure 14 and Figure 15 As shown, the middle plate portion 32 is constructed in a bent shape and is bent and connected between the conductive plate portion 31 and the connecting plate portion 33. The connecting plate portion 33 is provided with a second connecting hole 331 for passing the connecting member, that is, the first connecting hole 2122a matches the first connecting hole 2122a and the positions correspond. In this way, when the conductive member 3 and the conductive copper busbar 21 are actually connected, the connecting member can be passed through the second connecting hole 331 and the first connecting hole 2122a in sequence to achieve a reliable and stable connection between the conductive member 3 and the conductive copper busbar 21. At the same time, the connecting plate portion 33 is tightly fitted and connected to the surface of the second plate segment 2122, which further improves the connection reliability and stability, ensures the stable transmission of current, and avoids the loose connection and shaking of the conductive member 3, which affects the conductive effect.

[0080] In some embodiments, as Figure 14 and Figure 15 As shown, the middle plate portion 32 includes a first extension section 321 and a second extension section 322. The first extension section 321 is connected to the conductive plate portion 31 by bending, and the second extension section 322 is connected to the connecting plate portion 33 by bending. As shown in the figure, the first extension section 321 is connected to the conductive plate portion 31 by bending vertically, and the second extension section 322 is connected to the connecting plate portion 33 by bending vertically. In this way, it is convenient to connect the conductive plate portion 31 with the stator winding 422 and the connecting plate portion 33 with the second plate portion of the conductive member 3. At the same time, it can improve the overall structural strength of the conductive member 3, thereby enhancing its conductivity and facilitating the smooth flow of current.

[0081] like Figure 15 As shown, the first extension section 321 is connected to the second extension section 322 by bending, that is, the middle plate portion 32 is set to be bent, not straight, that is, the extension direction of the first extension section 321 is different from the extension direction of the second extension section 322, and there is a certain offset. In other words, the extension direction of the first extension section 321 and the extension direction of the second extension section 322 form an angle c. This setting allows a certain offset between the conductive plate portion 31 and the connecting plate portion 33, which is beneficial to the assembly of the connector and prevents the conductive plate portion 31 from affecting the installation of the connector in the second connecting hole 331 during assembly and connection, thereby improving operational convenience.

[0082] It should be noted that the magnitude of the angle c formed between the extension direction of the first extension section 321 and the extension direction of the second extension section 322, that is, the degree of offset of the first extension section 321 relative to the second extension section 322 or the degree of offset of the conductive plate portion 31 relative to the connecting plate portion 33, depends on the specifications of the connector used. It is understood that the larger the connector specifications, the larger the angle c should be set, and the smaller the connector specifications, the smaller the angle c should be set.

[0083] In actual design, since the second connection hole 331 is opened on the connection plate portion 33, the flow area will be reduced. Figure 15 As shown, the width b of the first extension section 321 can be set to be smaller than the width a of the second extension section 322 to increase the area of ​​the connecting plate portion 33, thereby increasing the flow area of ​​the connecting plate portion 33 and ensuring the current transmission effect.

[0084] In other embodiments, Figure 13As shown, a nut 57 can be provided on the inner side of the copper busbar connection portion 212, so that the connector can be passed through the second connection hole 331 and the first connection hole 2122a and connected to the nut 57, thereby achieving a complete connection between the copper busbar connection portion 212 and the conductive member 3. This can increase the effective connection length of the connector, such as a bolt, making the connection more stable and further improving the connection reliability. Of course, the connection can also be made by welding, riveting, etc., and is not limited to the present embodiment.

[0085] The present utility model also provides a motor stator 101 .

[0086] The motor stator 101 according to the embodiment of the present invention includes: a motor shaft 4 and a wire outlet structure for the motor stator.

[0087] The motor shaft 4 includes a first shaft section 41 and a second shaft section 42 connected along the axial direction. A stator core 421 and a stator winding 422 are disposed outside the first shaft section 41 .

[0088] Specifically, if Figure 4 As shown, the interior of the motor shaft 4 is a cavity, and the motor shaft 4 includes a first shaft segment 41 and a second shaft segment 42 connected along the axial direction. The first shaft segment 41 is the lower half shaft segment of the motor shaft 4, and the second shaft segment 42 is the upper half shaft segment of the motor shaft 4. The radial dimension of the first shaft segment 41 is smaller than the radial dimension of the second shaft segment 42. A stator core 421 and a stator winding 422 are provided on the outside of the first shaft segment 41. The stator core 421 is used to provide a magnetic circuit, and the stator winding 422 is used to generate a magnetic field or interact with a rotating magnetic field to generate an electromagnetic torque.

[0089] In practice, the stator core 421 can be fixedly arranged on the first shaft segment 41 along the axial direction. Winding slots are formed on the stator core 421 for installing the stator winding 422, that is, the stator winding 422 can be installed in the winding slots, and the stator windings 422 of the same phase are connected.

[0090] In the wire output structure for a motor stator as in any of the above embodiments, the connector board end 2 is installed in the second shaft section 42 , and at least a portion of the connector wire end 1 extends into the second shaft section 42 to be plugged into the connector board end 2 .

[0091] Specifically, if Figure 4 As shown, the motor shaft 4 is provided with the above-mentioned wire outlet structure for the motor stator, wherein the length of the second shaft segment 42 is adapted to the length of the connector board end 2, and the radial dimension of the connector board end 2 is smaller than the radial dimension of the internal cavity of the second shaft segment 42, so that the connector board end 2 can be installed in the second shaft segment 42.

[0092] During the actual assembly of the connector wire terminal 1 and the connector board terminal 2, at least a portion of the connector wire terminal 1 extends into the second shaft segment 42 to be plugged into and engaged with the connector board terminal 2, thereby achieving electrical connection between the connector wire terminal 1 and the connector board terminal 2, ensuring that current can flow from the connector wire terminal 1 to the connector board terminal 2, thereby ensuring the normal operation of the motor stator 101, and facilitating the installation and removal of the motor stator 101, thereby increasing the flexibility and maintainability of the motor stator 101.

[0093] Among them, such as Figure 6 As shown, the top surface of the uppermost stator core 421 can be electrically connected to the conductive plate portion 31 of the conductive member 3 , so that current can flow through the conductive member 3 to the stator core 421 and the stator winding 422 .

[0094] In some embodiments, a positioning boss 43 is formed at the connection between the first shaft segment 41 and the second shaft segment 42, a positioning groove 224 is formed at the other end of the insulating shell 22, and the avoidance hole 2241 is provided on the peripheral wall of the positioning groove 224. The positioning boss 43 extends into the positioning groove 224 and is positioned and matched with the insulating shell 22.

[0095] Specifically, if Figure 6 As shown, a positioning boss 43 is formed at the connection between the first shaft segment 41 and the second shaft segment 42. The positioning boss 43 divides the cavity of the motor shaft 4 into two parts. A positioning groove 224 is formed at the lower end of the insulating shell 22, that is, the end close to the first shaft segment 41. The avoidance hole 2241 is arranged on the peripheral wall of the positioning groove 224. The positioning groove 224 is used to install the positioning boss 43, that is, the positioning boss 43 is adapted to the positioning groove 224, so that the positioning boss 43 shell extends into the positioning groove 224 to be positioned and matched with the insulating shell 22, thereby realizing the axial positioning of the docking plug-in board end 2, ensuring the concentricity of the position of the plug-in board end 2 and the motor shaft 4, ensuring the precise installation of the plug-in board end 2, and preventing it from being offset and affecting the electrical connection effect.

[0096] In some embodiments, as Figure 4 and Figure 6 As shown, the height of the positioning boss 43 along the axial direction of the motor shaft 4 is H, and the depth of the positioning groove 224 along the axial direction of the motor shaft 4 is h, and they satisfy: h>H+10mm, so as to ensure the insulation safety of the motor stator 101.

[0097] In some embodiments, a first sealing member 51 is provided between the connector terminal 1 and the inner peripheral wall of the second shaft segment 42 .

[0098] Specifically, if Figure 4 and Figure 5As shown, a first sealing member 51 is provided between the connector wire terminal 1 and the inner circumferential wall of the second shaft segment 42, and a first sealing groove 55 is formed on the outer circumferential wall of the connector wire terminal 1. The first sealing member 51 can be installed in the first sealing groove, thereby being sleeved on the outside of the connector wire terminal 1. In this way, when the connector wire terminal 1 is actually plugged into and mated with the connector board end 2, the first sealing member 51 can be pressed between the outer circumferential wall of the connector wire terminal 1 and the inner circumferential wall of the second shaft segment 42, thereby achieving a seal between the connector wire terminal and the connector board end 2, ensuring sealing, and effectively preventing external liquids, dust, gases, etc. from penetrating into the interior of the motor stator 101 through the connection, thereby ensuring the operating safety of the motor stator 101.

[0099] In other embodiments, a second sealing member 52 is provided between the insulating shell 22 and the inner circumferential wall of the second shaft segment 42 .

[0100] Specifically, if Figure 4 and Figure 5 As shown, at the upper end of the shell body 222, a sealing boss 54 is further provided below the plug-in boss 53. The sealing boss 54 is spaced apart from the plug-in boss 53 to form a second sealing groove 56. In this way, when the outlet structure is actually installed in the second shaft segment 42, a second sealing member 52 can be installed in the sealing groove so that the second sealing member 52 is pressed between the inner circumferential wall of the second shaft segment 42 and the outer circumferential wall of the insulating shell 22 to achieve sealing between the motor shaft 4 and the connector board end 2, thereby ensuring sealing, preventing external liquids, dust, etc. from entering the interior of the motor stator 101, affecting the normal operation of the motor stator 101, and extending the service life of the motor stator 101.

[0101] Therefore, by providing the first sealing member 51 and the second sealing member 52 , the sealing performance of the motor stator 101 is greatly improved, thereby ensuring the safety of the motor stator 101 .

[0102] In actual design, the first sealing member 51 and the second sealing member 52 can be configured as sealing rings.

[0103] The present utility model also provides a motor 100 .

[0104] According to the embodiment of the present invention, the motor 100 is provided with any one of the above-mentioned motor stators 101 .

[0105] like Figure 1As shown, the motor 100 is provided with the above-mentioned motor stator 101. By directly arranging the outlet structure in the second shaft section 42 of the motor shaft 4, the overall size of the motor 100 is greatly reduced, and the structural compactness of the motor 100 is improved. The setting of the seal effectively improves the sealing performance of the motor 100, ensures the efficient operation of the motor 100, and extends the service life of the motor 100. The plug-in matching mode of the connector wire terminal 1 and the connector board terminal 2 and the connection mode of the conductive member 3 and the conductive copper bus 21 through the connector improve the assembly convenience, make the maintenance and replacement of the motor 100 more convenient and quick, ensure the reliability and stability of the electrical connection, and reduce the maintenance cost.

[0106] The utility model also provides a vehicle.

[0107] The vehicle according to the embodiment of the present invention is provided with the motor 100 described above.

[0108] By installing the above-mentioned motor 100 in the vehicle, its reliable electrical connection can enable the vehicle to obtain stronger power output and improve vehicle performance. The motor 100 with good sealing performance can also improve the reliability of the vehicle and prevent safety risks caused by vehicle stopping due to failure of the motor 100, thereby improving the safety of vehicle use.

[0109] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0110] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A wire outlet structure for a motor stator, characterized in that: include: Connector wire end (1); A connector board end (2), the connector board end (2) comprising a conductive copper busbar (21) and an insulating shell (22), the insulating shell (22) being sleeved outside the conductive copper busbar (21), one end of the insulating shell (22) being plug-fitted with the connector wire end (1), the other end of the insulating shell (22) being provided with a relief hole (2241), and one end of the conductive copper busbar (21) being electrically connected to the connector wire end (1); A conductive member (3), the conductive member (3) being located outside the insulating shell (22), one end of the conductive member (3) being used for being electrically connected to the stator winding (422), and the other end of the conductive member (3) being connected to the other end of the conductive copper busbar (21) at the avoidance hole (2241) via a connector.

2. The wire outlet structure for a motor stator according to claim 1, characterized in that: The conductive copper busbar (21) comprises a copper busbar main body (211) and a copper busbar connecting portion (212); the copper busbar main body (211) extends along the length direction of the insulating shell (22); one end of the copper busbar main body (211) is electrically connected to the connector wire end (1); the copper busbar connecting portion (212) is bent and connected to the other end of the copper busbar main body (211); and the copper busbar connecting portion (212) is provided with a first connecting hole (2122a) for penetrating the connecting piece.

3. The wire outlet structure for a motor stator according to claim 2, characterized in that: The copper busbar connecting portion (212) comprises a first plate segment (2121) and a second plate segment (2122); one end of the first plate segment (2121) is connected to the copper busbar main body (211) by bending; the second plate segment (2122) is connected to the other end of the first plate segment (2121) by bending; the second plate segment (2122) is connected to the other end of the conductive member (3) by fitting; and the first connection hole (2122a) is provided in the second plate segment (2122).

4. The wire outlet structure for a motor stator according to claim 2, characterized in that: The conductive copper bars (21) and the conductive members (3) are both multiple and arranged in one-to-one correspondence, the copper bar main bodies (211) of the multiple conductive copper bars (21) are distributed side by side, and the copper bar connecting parts (212) of the multiple conductive copper bars (21) are evenly spaced and distributed in the circumferential direction of the insulating shell (22).

5. The wire outlet structure for a motor stator according to claim 4, characterized in that: A plurality of insertion sleeves (221) are provided in one end of the insulating shell (22), and the copper bar main bodies (211) of the plurality of conductive copper bars (21) are inserted through the plurality of insertion sleeves (221) in a one-to-one correspondence.

6. The wire outlet structure for a motor stator according to claim 2, characterized in that: The insulating shell (22) comprises a shell main body (222) and a shell mounting portion (223), one end of the shell main body (222) is plugged into and matched with the connector wire end (1), and the shell mounting portion (223) is connected to the other end of the shell main body (222); The radial dimension of the shell mounting portion (223) is greater than the radial dimension of the shell main body portion (222), the copper busbar main body portion (211) is inserted into the shell main body portion (222), the copper busbar connecting portion (212) is located in the shell mounting portion (223), and the avoidance hole (2241) is provided in the shell mounting portion (223).

7. The wire outlet structure for a motor stator according to claim 1, characterized in that: The conductive member (3) comprises a conductive plate portion (31), an intermediate plate portion (32) and a connecting plate portion (33); the conductive plate portion (31) is used to be connected to the stator winding (422); the intermediate plate portion (32) is bent and connected between the conductive plate portion (31) and the connecting plate portion (33); the connecting plate portion (33) is connected to the conductive copper busbar (21) in a bonded manner; and the connecting plate portion (33) is provided with a second connecting hole (331) for penetrating the connecting member.

8. The wire outlet structure for a motor stator according to claim 7, characterized in that: The intermediate plate portion (32) comprises a first extension section (321) and a second extension section (322), wherein the first extension section (321) is connected to the conductive plate portion (31) by bending, and the second extension section (322) is connected to the connecting plate portion (33) by bending. The first extension section (321) is connected to the second extension section (322) by bending, and an extension direction of the first extension section (321) forms an angle with an extension direction of the second extension section (322).

9. A motor stator, characterized in that: include: A motor shaft (4), the motor shaft (4) comprising a first shaft section (41) and a second shaft section (42) connected in an axial direction, wherein a stator core (421) and a stator winding (422) are provided outside the first shaft section (41); According to any one of claims 1 to 8, the wire outlet structure for a motor stator, the connector board end (2) is installed in the second shaft section (42), and at least a portion of the connector wire end (1) extends into the second shaft section (42) to be plugged into and fitted with the connector board end (2).

10. The motor stator according to claim 9, characterized in that: A positioning boss (43) is formed at the connection between the first shaft section (41) and the second shaft section (42), a positioning groove (224) is formed at the other end of the insulating shell (22), the avoidance hole (2241) is provided on the peripheral wall of the positioning groove (224), and the positioning boss (43) extends into the positioning groove (224) and is positioned and matched with the insulating shell (22).

11. The motor stator according to claim 10, characterized in that: The height of the positioning boss (43) along the axial direction of the motor shaft (4) is H, and the depth of the positioning groove (224) along the axial direction of the motor shaft (4) is h, and the following condition is satisfied: h>H+10mm.

12. The motor stator according to claim 9, characterized in that: A first sealing member (51) is provided between the connector wire end (1) and the inner peripheral wall of the second shaft section (42); And / or, a second sealing member (52) is provided between the insulating shell (22) and the inner peripheral wall of the second shaft segment (42).

13. A motor, characterized in that: A motor stator (101) according to any one of claims 9 to 12 is provided.

14. A vehicle, characterized in that: An electric motor (100) as claimed in claim 13 is provided.

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