Motor, window assembly, door assembly and vehicle

Abstract

The present invention relates to the field of vehicles, and discloses a motor, a vehicle window assembly, a vehicle door assembly, and a vehicle. The motor includes: an output shaft; a conductive member, which is mounted on the output shaft, and at least one side of the outer circumferential wall of the conductive member is provided with an insulating structure; a first contact member and a second contact member, which are distributed along the circumference of the conductive member and are both in sliding conductive contact with the outer circumferential wall of the conductive member, and the first contact member or the second contact member is disconnected from the outer circumferential wall of the conductive member when sliding to overlap with the insulating structure, and the first contact member and the second contact member are used to connect a detection circuit. The motor in the present invention only realizes circuit conduction or disconnection through the first contact member and the second contact member contacting the conductive member, thereby achieving the effect of detecting the position or speed of the motor. Compared with the Hall sensor in the related art, the number of electronic components is less, so the overall structure of the motor can be made more compact, so that the motor can be installed and arranged in a small space.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a motor, a vehicle window assembly, a vehicle door assembly and a vehicle. Background Art

[0002] In modern car design, the popularity of devices such as electric windows has greatly improved the driving experience and comfort. However, the introduction of these devices also brings safety hazards, especially the windows are easy to pinch the fingers or body parts of passengers when they close automatically.

[0003] To solve this problem, the relevant technology uses a Hall anti-pinch motor as a power element to drive the opening and closing of the car window. The output shaft of the Hall anti-pinch motor is equipped with a magnetic ring, and a Hall sensor is installed near the magnetic ring. When the motor rotates, the magnetic ring rotates accordingly, and the Hall sensor detects the change in the magnetic field and generates a Hall waveform. The Hall waveform generated by the Hall sensor is fed back to the control system, and after processing and analysis, it is used to determine the precise position and speed of the motor. When abnormal resistance is detected, the control system will respond quickly to achieve anti-pinch protection.

[0004] Since the magnetic ring and the Hall sensor need to be arranged, the overall volume of the Hall anti-pinch motor in the related art is larger, which is not conducive to the installation and arrangement of the Hall anti-pinch motor in a narrow installation space. Summary of the invention

[0005] In view of this, the present invention provides a motor, a window assembly, a door assembly and a vehicle to solve or improve the problem in the related art that the overall volume of the Hall anti-pinch motor is large, which is not conducive to the installation and arrangement of the Hall anti-pinch motor in a narrow installation space.

[0006] In a first aspect, the present invention provides a motor, comprising:

[0007] Output shaft;

[0008] A conductive member, sleeved on the output shaft, wherein at least one side of the outer circumferential wall of the conductive member is provided with an insulating structure;

[0009] A first contact piece and a second contact piece, both of which are distributed along the circumference of the conductive piece and are in sliding conductive contact with the outer circumferential wall of the conductive piece, the conductive piece is used to make the first contact piece and the second contact piece electrically conductive, and the first contact piece or the second contact piece is disconnected from the outer circumferential wall of the conductive piece when sliding to overlap with the insulating structure;

[0010] The first contact piece and the second contact piece are used to connect to a detection circuit, and the detection circuit is used to output a waveform according to the on-off state of the first contact piece and the second contact piece.

[0011] In an optional embodiment, the commutator of the motor includes a support body and a plurality of commutator segments;

[0012] Wherein, the support body is set as an insulator, the support body is sleeved on the output shaft, and the plurality of commutator segments are sequentially spaced and distributed along the circumference of the support body, and are all connected to the support body;

[0013] The conductive member is sleeved on the support body, and there is an axial distance between the conductive member and the commutator segment.

[0014] In an optional embodiment, an axial opening is provided on the side wall of the conductive member, and a clamping portion is provided on the support body. The clamping portion is clamped in the axial opening, and in the circumferential direction of the support body, the clamping portion limits the conductive member, and the insulating structure includes the clamping portion.

[0015] In an optional embodiment, an annular groove is provided on the outer circumferential wall of the support body, and the conductive member and the clamping portion are both arranged in the annular groove.

[0016] In an optional embodiment, a plurality of slots are provided on the outer circumferential wall of the support body, and the plurality of slots are distributed in sequence and at intervals along the circumference of the support body, and a corresponding commutator segment is provided in each of the slots.

[0017] In an optional embodiment, at least one of the first contact member and the second contact member is configured as a brush;

[0018] And / or, in the axial direction of the output shaft, one of the first contact piece and the second contact piece is arranged opposite to the positive brush of the motor, and the other is arranged opposite to the negative brush of the motor.

[0019] In a second aspect, the present invention further provides a vehicle window assembly, comprising glass, a detection circuit and the motor as described above, wherein the motor is drivingly connected to the glass and is used to drive the glass to move;

[0020] The detection circuit is connected to the first contact piece and the second contact piece respectively, and the detection circuit is used to output a waveform according to the on-off state of the first contact piece and the second contact piece.

[0021] In an optional implementation, the detection circuit includes a power supply and a current collection device;

[0022] The power source and the current collection device are connected in series, one of the power source and the current collection device is electrically connected to the first contact member, and the other is electrically connected to the second contact member.

[0023] In a third aspect, the present invention further provides a vehicle door assembly, comprising the motor as described above or the vehicle window assembly as described above.

[0024] In a fourth aspect, the present invention further provides a vehicle, comprising the motor as described above, the window assembly as described above, or the door assembly as described above, wherein the window assembly is configured as a side window assembly or a sunroof assembly.

[0025] In the motor provided by the present invention, during the process that the conductive member rotates with the output shaft, the first contact member and the second contact member are connected or disconnected with each other through the conductive member provided with an insulating structure, so that the detection circuit can output a waveform based on the on-off state of the first contact member and the second contact member. That is, the motor in the present invention realizes circuit conduction or disconnection only through the interference between the first contact member and the second contact member and the conductive member, thereby achieving the effect of detecting the position or speed of the motor. Compared with the Hall sensor in the related art, the number of electronic components is smaller, so that the overall structure of the motor can be made more compact, so that the motor can be installed and arranged in a small space.

[0026] The vehicle window assembly, vehicle door assembly and vehicle provided by the present invention include the motor provided by the present invention, and thus include all the above advantages of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 This is a schematic diagram of the structure in which the conductive member provided in an embodiment of the present invention is installed on the commutator;

[0029] Figure 2 A schematic structural diagram of a supporting body of a conductive member provided in an embodiment of the present invention;

[0030] Figure 3 A schematic diagram of the structure of a conductive member provided in an embodiment of the present invention;

[0031] Figure 4 A schematic diagram of the structure of a detection circuit provided in an embodiment of the present invention;

[0032] Figure 5 This is a waveform diagram output by the detection circuit provided in the embodiment of the present invention during the operation of the motor.

[0033] Description of reference numerals:

[0034] 1. Output shaft; 2. Conductive member; 201. Insulating structure; 2011. Axial opening; 3. First contact member; 4. Second contact member; 5. Positive brush; 6. Negative brush; 7. Commutator; 701. Commutator segment; 702. Support body; 7021. Clamping part; 7022. Ring groove; 7023. Clamping groove; 8. Power supply; 9. Current collection device. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0036] In the related art, a magnetic ring is installed on the output shaft of the Hall anti-pinch motor, and a Hall sensor is set near the magnetic ring. When the motor rotates, the magnetic ring rotates accordingly, and the Hall sensor detects the change in the magnetic field and generates a corresponding Hall waveform. The Hall waveform generated by the Hall sensor is fed back to the control system, and after processing and analysis, it is used to determine the precise position and speed of the motor. When abnormal resistance is detected, the control system will respond quickly to achieve anti-pinch protection.

[0037] As mentioned above, due to the detection principle of the Hall anti-pinch motor, the magnetic ring must be set on the output shaft, and the Hall sensor must be set close to the magnetic ring to detect the magnetic field change ring. The Hall sensor usually includes electronic components such as Hall plate, lead, housing, constant current source and amplifier, with complex structure and high cost. Therefore, both the magnetic ring and the Hall sensor are arranged on the Hall anti-pinch motor, which makes the overall volume of the Hall anti-pinch motor larger, which is not conducive to the installation and arrangement of the Hall anti-pinch motor in a narrow installation space. In addition, due to the large number of electronic components, the cost of the Hall anti-pinch motor is relatively high.

[0038] In order to solve or improve the problem in the related art that the overall volume of the Hall anti-pinch motor is large, which is not conducive to the installation and arrangement of the Hall anti-pinch motor in a narrow installation space, an embodiment of the present invention provides a motor, a window assembly, a door assembly and a vehicle.

[0039] Combine the following Figures 1 to 5 , describing the motor provided in an embodiment of the present invention.

[0040] Specifically, the motor is used to be connected to the glass of the vehicle window and to drive the glass to move. The motor includes an output shaft 1, a conductive member 2, a first contact member 3 and a second contact member 4.

[0041] The output shaft 1 is used for transmission connection with the glass of the vehicle window and for driving the glass to move.

[0042] The conductive member 2 is sleeved on the output shaft 1. Optionally, the conductive member 2 is configured as a cylindrical structure. For example, the conductive member 2 can be connected to the output shaft 1 by bonding, welding, interference connection or clamping. Optionally, the conductive member 2 is configured as a metal structure, such as a copper structure. At least one side of the outer circumferential wall of the conductive member 2 is provided with an insulating structure 201.

[0043] The first contact piece 3 and the second contact piece 4 are distributed along the circumference of the conductive piece 2, and the first contact piece 3 and the second contact piece 4 are both in sliding conductive contact with the outer circumferential wall of the conductive piece 2, that is, the first contact piece 3 and the second contact piece 4 are both in conductive contact with the outer circumferential wall of the conductive piece 2, and can slide relative to the outer circumferential wall of the conductive piece 2, so that the first contact piece 3 and the second contact piece 4 can be electrically connected through the conductive piece 2.

[0044] When the first contact piece 3 or the second contact piece 4 slides to a state where it overlaps with the insulating structure 201, it is disconnected from the outer circumferential wall of the conductive piece 2, that is, when the first contact piece 3 or the second contact piece 4 slides to a position where it overlaps with the insulating structure 201, it is detached from or disconnected from the outer circumferential wall of the conductive piece 2, so that the first contact piece 3 and the second contact piece 4 are disconnected.

[0045] It can be understood that, in the axial direction of the guide, the length dimension of the insulating structure 201 is greater than the length dimension of the first contact piece 3 or the second contact piece 4, and in the circumferential direction of the guide, the width dimension of the insulating structure 201 is greater than the width dimension of the first contact piece 3 or the second contact piece 4. Accordingly, the first contact piece 3 or the second contact piece 4 overlaps with the insulating structure 201, which means that the first contact piece 3 or the second contact piece 4 slides to be completely within the range of the insulating structure 201.

[0046] The first contact member 3 and the second contact member 4 are used to connect the detection circuit, and the detection circuit outputs a waveform according to the on-off state of the first contact member 3 and the second contact member 4. For example, during the rotation of the output shaft 1, the conductive member 2 rotates accordingly. When the first contact member 3 and the second contact member 4 are both in conductive contact with the outer circumferential wall of the conductive member 2, the first contact member 3 is connected to the second contact member 4 through the conductive member 2, and the detection circuit forms a closed loop through the first contact member 3, the conductive member 2 and the second contact member 4, and the detection circuit outputs a high level.

[0047] When any one of the first contact member 3 and the second contact member 4 overlaps with the insulating structure 201 , the first contact member 3 and the second contact member 4 are disconnected, and the loop of the detection circuit is disconnected, and the detection circuit outputs a low level.

[0048] That is, during the rotation of the output shaft 1, the first contact member 3 and the second contact member 4 are turned on or off through the conductive member 2, so that the detection circuit outputs a corresponding waveform based on the on-off state between the first contact member 3 and the second contact member 4. Similar to the detection principle of the Hall anti-pinch motor, based on the waveform output by the detection circuit, the control system can calculate the precise position and speed of the motor.

[0049] In this embodiment, during the process of the conductive member 2 rotating with the output shaft 1, the first contact member 3 and the second contact member 4 are connected or disconnected with each other through the conductive member 2 provided with the insulating structure 201, so that the detection circuit can output a waveform based on the on-off state of the first contact member 3 and the second contact member 4, that is, the motor in the present invention only realizes the circuit conduction or disconnection through the first contact member 3 and the second contact member 4 interfering with the conductive member 2, thereby achieving the effect of detecting the position or speed of the motor. Compared with the Hall sensor in the related art, the number of electronic components is smaller, so that the overall structure of the motor can be made more compact, so that the motor can be installed and arranged in a small space.

[0050] In addition, the motor provided by the present invention reduces the number of electronic components compared to the Hall anti-pinch motor in the related art, and thus has a lower cost. In addition, the first contact piece 3 and the second contact piece 4 both form physical contact with the conductive piece 2, reducing the possibility of failure caused by complex circuits, and the first contact piece 3, the second contact piece 4 and the conductive piece 2 can all be replaced independently, thereby reducing the maintenance cost of the motor.

[0051] There is also a ripple motor in the related technology. The current waveform during the operation of the motor is collected by the current sensor, and the position and speed of the motor are calculated by the control system based on the current waveform. The waveform generated by this ripple motor has poor stability and is easily affected by the motor's operating state or the external environment. Complex software and hardware are required to process the waveform, which makes the motor difficult to control and the control cost high.

[0052] The motor provided by the present invention changes the on-off state between the first contact member 3 and the second contact member 4 by changing the relative position of the first contact member 3 and the second contact member 4 with the conductive member 2 during the rotation process, thereby outputting a corresponding waveform through the detection circuit. The first contact member 3 and the second contact member 4 only have two states, namely, on and off. This makes the waveform output by the detection circuit simple and clear, so as to facilitate subsequent logical processing of the waveform, thereby reducing the requirements of waveform processing on software and hardware, and further reducing the control cost and control difficulty of the motor. In addition, a simple and clear waveform can improve the speed and accuracy of the control system's waveform processing, so as to quickly and accurately obtain the position and speed of the motor, and improve the detection accuracy or control accuracy of the motor.

[0053] refer to Figure 1As shown, in some embodiments provided by the present invention, the commutator 7 of the motor includes a support body 702 and a plurality of commutator segments 701 .

[0054] The support body 702 is configured as an insulator, the support body 702 is sleeved on the output shaft 1, and the support body 702 is used to rotate with the output shaft 1. A plurality of commutator segments 701 are sequentially spaced along the circumference of the support body 702, and the commutator segments 701 are all connected to the support body 702. It can be understood that in the motor, each commutator segment 701 is connected to a part of the winding of the motor, and the commutator segments 701 are insulated from each other.

[0055] The conductive member 2 is sleeved on the support body 702. There is an axial distance between the conductive member 2 and the commutator segment 701, so that the conductive member 2 and the commutator segment 701 are insulated.

[0056] In this embodiment, the conductive member 2 and the commutator segment 701 are integrated on the support body 702 of the commutator 7. The integrated design helps to reduce the number of parts. Thus, on the one hand, the overall structure of the motor is simpler and more compact, thereby further reducing the overall volume and weight of the motor, so as to facilitate the installation and layout of the motor. On the other hand, the production process of the motor is simpler, reducing the manufacturing cost of the motor. On the other hand, the assembly difficulty of the motor is lowered, which can improve the production efficiency of the motor. On the other hand, during the maintenance of the commutator 7, the commutator segment 701 and the conductive member 2 can be inspected or replaced at the same time, thereby reducing the difficulty and time required for maintenance.

[0057] refer to Figure 1 and Figure 3 As shown, in some embodiments provided by the present invention, an axial opening 2011 is provided on the side wall of the conductive member 2, and optionally, the axial opening 2011 passes through both ends of the conductive member 2 along the axial direction of the conductive member 2. A clamping portion 7021 is provided on the support body 702, and the clamping portion 7021 is clamped in the axial opening 2011 of the conductive member 2, and in the circumferential direction of the support body 702, the clamping portion 7021 forms a limit for the conductive member 2 to limit the rotational freedom of the conductive member 2 on the support body 702. The insulating structure 201 includes the clamping portion 7021, that is, when the first contact member 3 or the second contact member 4 slides to a state where it overlaps with the clamping portion 7021, it is disconnected from the outer circumferential wall of the conductive member 2.

[0058] In this embodiment, an axial opening 2011 is provided on the side wall of the conductive member 2, and the axial opening 2011 is engaged with the engaging portion 7021 on the support body 702. On the one hand, a circumferential limit can be formed on the conductive member 2 to prevent the conductive member 2 from rotating relative to the support member, so as to ensure stable contact between the conductive member 2 and the first contact member 3 or the second contact member 4, and ensure the consistency of the disconnection position of the conductive member 2 and the first contact member 3 or the second contact member 4 each time, thereby improving the detection accuracy and control accuracy of the motor.

[0059] On the other hand, when the clamping portion 7021 overlaps with the first contact member 3 or the second contact member 4, the first contact member 3 or the second contact member 4 is disconnected from the outer circumferential wall of the conductive member 2, so that the clamping portion 7021 has a multi-purpose effect, further improving the structural compactness of the motor. On the other hand, by clamping the clamping portion 7021 with the axial opening 2011, the conductive member 2 is prevented from rotating, which can improve the connection strength between the conductive member 2 and the support body 702, and avoid the problem of the conductive member 2 loosening and generating noise or abnormal sound.

[0060] In some embodiments provided by the present invention, the surface of the clamping portion 7021 away from the center of the support body 702 is flush with the outer circumferential surface of the conductive member 2. In this embodiment, the clamping portion 7021 and the conductive member 2 are flush with each other, so that the first insulating member or the second insulating member can run more smoothly when sliding to the edge of the clamping portion 7021, avoiding the problem of shearing effect on the first insulating member or the second insulating member caused by the edge of the clamping portion 7021 or the axial opening 2011, thereby extending the service life of the first insulating member or the second insulating member.

[0061] refer to Figure 1 and Figure 2 As shown, in some embodiments provided by the present invention, an annular groove 7022 is provided on the outer circumferential wall of the support body 702 , and the conductive member 2 and the clamping portion 7021 are both disposed in the annular groove 7022 .

[0062] In this embodiment, by arranging both the conductive member 2 and the clamping portion 7021 in the annular groove 7022 of the support body 702, on the one hand, it is possible to avoid the problem of the conductive member 2 protruding too large from the surface of the support body 702, and on the other hand, fully utilize the internal space of the support body 702 to arrange and install the conductive member 2, thereby further improving the compactness of the motor.

[0063] On the other hand, by arranging the conductive part 2 in the annular groove 7022, the annular groove 7022 limits the conductive part 2 in the axial direction of the conductive part 2, thereby improving the connection strength between the conductive part 2 and the support body 702, and preventing the conductive part 2 from moving axially along the support body 702. At the same time, the side wall of the annular groove 7022 can insulate the conductive part 2 and the commutator segment 701, thereby improving the insulation effect between the conductive part 2 and the commutator segment 701.

[0064] In some embodiments provided by the present invention, the wall thickness of the conductive member 2 is equal to the depth of the annular groove 7022, and the clamping portion 7021 is an integral structure with the support body 702. By providing a non-closed annular groove 7022 on the outer circumferential wall of the support body 702, the unconnected portion of the annular groove 7022 constitutes the clamping portion 7021. With such a configuration, the structure of the support body 702 is simpler and the processing difficulty is lower.

[0065] In some embodiments provided by the present invention, the conductive member 2 is provided as an integral structure, and the conductive member 2 can be sleeved in the annular groove 7022 through the axial opening 2011. It can be understood that the central angle corresponding to the axial opening 2011 is less than 180 degrees, so that the conductive member 2 can be clamped in the annular groove 7022. Alternatively, the conductive member 2 can also include a plurality of arc-shaped pieces, and the plurality of arc-shaped pieces are assembled in the annular groove 7022, and can be fixed by, but not limited to, bonding or fastener connection.

[0066] In some embodiments provided by the present invention, the conductive member 2 is arranged on the side of the commutator segment 701 away from the winding of the motor. By arranging the conductive member 2 on the side of the commutator 7 away from the winding, the problem of direct contact between the conductive member 2 and the winding causing motor failure or detection failure can be avoided, and the heat transferred from the winding to the conductive member 2 can be reduced, thereby extending the service life of the conductive member 2. In addition, the electromagnetic interference of the winding on the conductive member 2 can be reduced, and the stability of the first contact member 3 and the second contact member 4 when they are connected through the conductive member 2 can be improved.

[0067] In some embodiments provided by the present invention, a plurality of slots 7023 are provided on the outer circumferential wall of the support body 702 . The plurality of slots 7023 are sequentially spaced apart along the circumference of the support body 702 , and a corresponding commutator segment 701 is provided in each slot 7023 .

[0068] In this embodiment, by providing a plurality of slots 7023 on the support body 702, the position of each commutator segment 701 can be accurately fixed to ensure that the commutator segment 701 will not be displaced during the operation of the motor. Each commutator segment 701 is fixed in an independent slot 7023, which can ensure that the contact between the brush and the commutator segment 701 is more stable and reduce the possibility of poor electrical contact. The design of the slot 7023 makes it easier to position and install the commutator segment 701 during the assembly process, simplifying the assembly process. Each commutator segment 701 is located in an independent slot 7023, which can better ensure the insulation performance between the commutator segments 701, effectively prevent short circuits between adjacent commutator segments 701, and reduce electrical interference between the commutator segments 701, thereby improving the reliability of the motor operation.

[0069] In some embodiments provided by the present invention, at least one of the first contact member 3 and the second contact member 4 is configured as a brush. Optionally, the brush is a graphite structure or a metal-graphite composite structure.

[0070] In this embodiment, by setting the first contact piece 3 or the second contact piece 4 as a brush, on the one hand, the conductivity of the first contact piece 3 or the second contact piece 4 and the contact stability between the first contact piece 3 or the second contact piece 4 and the conductive piece 2 can be improved, so that the first contact piece 3 or the second contact piece 4 can maintain stable current transmission with the conductive piece 2 during the rotation of the conductive piece 2.

[0071] On the other hand, the wear resistance of the first contact member 3 or the second contact member 4 can be improved, thereby extending the service life of the first contact member 3 or the second contact member 4, and maintaining good contact performance with the conductive member 2 after a long period of operation. On the other hand, the first contact member 3 or the second contact member 4 can remove dirt or an oxide layer on the surface of the conductive member 2 during the rotation of the conductive member 2, thereby maintaining stable contact.

[0072] In addition, the first contact 3 or the second contact 4 is set as a brush, and the first contact 3 or the second contact 4 is made of the same material as the positive brush 5 or the negative brush 6 of the motor. In this way, on the one hand, the first contact 3 or the second contact 4 can be made to have the same structure or material as the positive brush 5 or the negative brush 6, or an excess positive brush 5 or negative brush 6 can be used as the first contact 3 or the second contact 4, thereby eliminating the need to purchase or prepare the first contact 3 or the second contact 4 separately, thereby reducing the production cost of the motor, and allowing the same spare parts to be used for replacement, simplifying inventory management and maintenance processes.

[0073] On the other hand, the life of the first contact piece 3 or the second contact piece 4 is roughly the same as the positive brush 5 or the negative brush 6 of the motor, avoiding the problem of early damage due to material differences and facilitating unified maintenance of the first contact piece 3, the second contact piece 4, the positive brush 5 and the negative brush 6, thereby reducing the motor maintenance cost.

[0074] In some embodiments provided by the present invention, in the axial direction of the output shaft 1 of the motor, one of the first contact 3 and the second contact 4 is arranged opposite to the positive brush 5 of the motor, and the other is arranged opposite to the negative brush 6 of the motor.

[0075] Since the motor usually has corresponding installation spaces for the positive brush 5 and the negative brush 6, in this embodiment, by arranging one of the first contact piece 3 and the second contact piece 4 opposite to the positive brush 5 and the other opposite to the negative brush 6, the installation space corresponding to the positive brush 5 or the negative brush 6 can be fully utilized, and the problem of interference between the first contact piece 3 and the second contact piece 4 and other components in the motor can be reduced.

[0076] In addition, the wires of the first contact 3 or the second contact 4 can be arranged along the wires of the positive brush 5 or the negative brush 6, so as to uniformly arrange and constrain the wires in the motor and reduce the problem of messy or entangled wires.

[0077] In some embodiments provided by the present invention, at least one of the first contact member 3 and the second contact member 4 is provided with an arcuate surface adapted to the outer circumferential wall of the conductive member 2. In this embodiment, by providing the first contact member 3 or the second contact member 4 with an arcuate surface, the arcuate surface can be closely fitted with the outer circumferential wall of the conductive member 2, thereby reducing the possibility of poor contact.

[0078] Secondly, the contact area between the arc surface and the conductive member 2 is large, which is conducive to the uniform distribution of current, thereby reducing contact resistance, which in turn helps to reduce signal attenuation and interference, and improve the stability and quality of signal transmission. In addition, the contact area between the arc surface and the conductive member 2 is large, which helps to evenly distribute the pressure on the arc surface, reduce local wear, and extend the service life of the contact member.

[0079] In some embodiments provided by the present invention, the positive brush 5, the negative brush 6, the first contact 3 and the second contact 4 are all connected to the end cover of the motor. In this embodiment, by integrating the positive brush 5, the negative brush 6, the first contact 3 and the second contact 4 on the end cover, the installation space on the end cover can be fully utilized, thereby improving the compactness of the overall structure of the motor.

[0080] It should be noted that the technical means in various embodiments of the present invention can be borrowed and combined with each other to obtain a corresponding motor. For example, in other embodiments, the motor includes an output shaft 1, a conductive member 2, a first contact member 3, a second contact member 4, a commutator 7, a positive brush 5, a negative brush 6 and a detection circuit.

[0081] The conductive member 2 is sleeved on the output shaft 1, and an insulating structure 201 is provided on at least one side of the outer circumferential wall of the conductive member 2. The first contact member 3 and the second contact member 4 are distributed along the circumference of the conductive member 2, and the first contact member 3 and the second contact member 4 are both in sliding conductive contact with the outer circumferential wall of the conductive member 2, so that the first contact member 3 and the second contact member 4 can be electrically connected through the conductive member 2. When the first contact member 3 or the second contact member 4 slides to overlap with the insulating structure 201, it is disconnected from the outer circumferential wall of the conductive member 2.

[0082] The first contact 3 and the second contact 4 are respectively used to connect the positive and negative electrodes of the detection circuit, and the detection circuit is used to output a waveform according to the on-off state of the first contact 3 and the second contact 4. The detection circuit includes a power supply 8 and a current acquisition device 9. The power supply 8 and the current acquisition device 9 are connected in series, one of the power supply 8 and the current acquisition device 9 is electrically connected to the first contact 3, and the other is electrically connected to the second contact 4.

[0083] The commutator 7 of the motor includes a support body 702 and a plurality of commutator segments 701. The support body 702 is set as an insulator, the support body 702 is sleeved on the output shaft 1, and the support body 702 is used to rotate with the output shaft 1. The plurality of commutator segments 701 are sequentially spaced along the circumference of the support body 702, and the commutator segments 701 are all connected to the support body 702. The conductive member 2 is sleeved on the support body 702 and is arranged on the side of the commutator segment 701 away from the winding of the motor. There is an axial spacing between the conductive member 2 and the commutator segment 701, so that the conductive member 2 and the commutator segment 701 are insulated.

[0084] An axial opening 2011 is provided on the side wall of the conductive member 2, and a clamping portion 7021 is provided on the support body 702. The clamping portion 7021 is clamped in the axial opening 2011 of the conductive member 2, and in the circumferential direction of the support body 702, the clamping portion 7021 forms a limit for the conductive member 2 to limit the rotational freedom of the conductive member 2 on the support body 702. The surface of the clamping portion 7021 away from the center of the support body 702 is flush with the outer circumferential surface of the conductive member 2. An annular groove 7022 is provided on the outer circumferential wall of the support body 702, and the conductive member 2 and the clamping portion 7021 are both arranged in the annular groove 7022. A plurality of clamping grooves 7023 are provided on the outer circumferential wall of the support body 702, and the plurality of clamping grooves 7023 are sequentially spaced and distributed along the circumferential direction of the support body 702, and a corresponding commutator segment 701 is provided in each clamping groove 7023.

[0085] At least one of the first contact piece 3 and the second contact piece 4 is set as a brush, and in the axial direction of the output shaft 1 of the motor, one of the first contact piece 3 and the second contact piece 4 is set opposite to the positive brush 5 of the motor, and the other is set opposite to the negative brush 6 of the motor.

[0086] It can be understood that, in this embodiment, the motor integrates the technical means in the above-mentioned multiple embodiments and thus has corresponding technical advantages.

[0087] A vehicle window assembly is also provided in an embodiment of the present invention.

[0088] Specifically, the vehicle window assembly includes glass, a detection circuit and the above-mentioned motor, which is transmission-connected to the glass and is used to drive the glass to move.

[0089] The detection circuit is connected to the first contact member 3 and the second contact member 4 respectively, and is used to output a waveform according to the on-off state of the first contact member 3 and the second contact member 4 .

[0090] It should be noted that the vehicle window assembly includes a motor, which also includes all the above-mentioned advantages of the motor, so it will not be elaborated on here.

[0091] It should also be noted that the vehicle window assembly is configured as a side window assembly or a skylight assembly. The side window assembly is configured to be disposed on a vehicle door, and the skylight assembly is configured to be disposed on the top of the vehicle.

[0092] refer to Figure 4 and Figure 5 As shown, in some embodiments provided by the present invention, the detection circuit includes a power supply 8 and a current acquisition device 9. Optionally, the current acquisition device 9 can be configured as a current sensor, and the current acquisition device 9 can be communicatively connected with the control system of the vehicle to transmit the detected current waveform to the control system, and the control system calculates the position and speed of the motor based on the current waveform.

[0093] The power source 8 and the current collection device 9 are connected in series, one of the power source 8 and the current collection device 9 is electrically connected to the first contact member 3 , and the other is electrically connected to the second contact member 4 .

[0094] In this embodiment, when the first contact member 3 and the second contact member 4 are both in conductive contact with the outer circumferential wall of the conductive member 2, the first contact member 3 is connected to the second contact member 4 through the conductive member 2, the power supply 8 is connected to the current collection device 9 through the first contact member 3, the conductive member 2 and the second contact member 4, and the current collection device 9 outputs a high level.

[0095] When any one of the first contact member 3 and the second contact member 4 overlaps with the insulating structure 201, the first contact member 3 and the second contact member 4 are disconnected, the power supply 8 is disconnected from the current collection device 9, and the current collection device 9 outputs a low level. As the conductive member 2 continues to rotate, the current collection device 9 outputs a current waveform.

[0096] In this embodiment, the power supply 8 and the current collection device 9 can be connected to the first contact piece 3 or the second contact piece 4 by wires, and do not need to be integrated with the motor, thereby not increasing the volume and weight of the motor, and making the position arrangement of the power supply 8 and the current collection device 9 more flexible and convenient.

[0097] A vehicle door assembly is also provided in an embodiment of the present invention.

[0098] Specifically, the vehicle door assembly includes the motor as described above or the vehicle window assembly as described above.

[0099] It should be noted that the door assembly includes a motor, which also includes all the above-mentioned advantages of the motor, so it will not be elaborated on.

[0100] A vehicle is also provided in an embodiment of the present invention.

[0101] Specifically, the vehicle includes the above motor, the above window assembly or the above door assembly, and the window assembly is configured as a side window assembly or a sunroof assembly.

[0102] It should be noted that the vehicle includes an electric motor, which also includes all the above-mentioned advantages of the electric motor, so it will not be elaborated on.

[0103] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A motor, characterized in that: include: Output shaft (1); A conductive member (2) is sleeved on the output shaft (1), and the conductive member (2) is integrated on the commutator (7) of the motor, and an insulating structure (201) is provided on at least one side of the outer circumferential wall of the conductive member (2); A first contact piece (3) and a second contact piece (4), both of which are distributed along the circumference of the conductive piece (2) and are in sliding conductive contact with the outer circumferential wall of the conductive piece (2); the conductive piece (2) is used to make the first contact piece (3) and the second contact piece (4) electrically conductive; the first contact piece (3) or the second contact piece (4) is disconnected from the outer circumferential wall of the conductive piece (2) when sliding to overlap with the insulating structure (201); The first contact piece (3) and the second contact piece (4) are used to connect a detection circuit, and the detection circuit is used to output a waveform according to the on-off state of the first contact piece (3) and the second contact piece (4).

2. The motor according to claim 1, characterized in that The commutator (7) of the motor comprises a support body (702) and a plurality of commutator segments (701); The support body (702) is an insulator, the support body (702) is sleeved on the output shaft (1), and a plurality of commutator segments (701) are sequentially spaced along the circumference of the support body (702) and are all connected to the support body (702); The conductive member (2) is sleeved on the support body (702), and there is an axial distance between the conductive member (2) and the commutator segment (701).

3. The motor according to claim 2, characterized in that An axial opening (2011) is provided on the side wall of the conductive member (2), a clamping portion (7021) is provided on the support body (702), the clamping portion (7021) is clamped in the axial opening (2011), and in the circumferential direction of the support body (702), the clamping portion (7021) limits the conductive member (2), and the insulating structure (201) comprises the clamping portion (7021).

4. The motor according to claim 3, characterized in that An annular groove (7022) is provided on the outer circumferential wall of the support body (702), and the conductive member (2) and the clamping portion (7021) are both arranged in the annular groove (7022).

5. The motor according to claim 2, characterized in that: A plurality of slots (7023) are provided on the outer circumferential wall of the support body (702), the plurality of slots (7023) are sequentially spaced and distributed along the circumference of the support body (702), and a corresponding commutator segment (701) is provided in each of the slots (7023).

6. The motor according to any one of claims 1 to 5, characterized in that: At least one of the first contact piece (3) and the second contact piece (4) is configured as a brush; And / or, in the axial direction of the output shaft (1), one of the first contact piece (3) and the second contact piece (4) is arranged opposite to the positive brush (5) of the motor, and the other is arranged opposite to the negative brush (6) of the motor.

7. A vehicle window assembly, characterized in that: It comprises glass, a detection circuit and a motor as claimed in any one of claims 1 to 6, wherein the motor is connected to the glass in a transmission manner and is used to drive the glass to move; The detection circuit is connected to the first contact piece (3) and the second contact piece (4) respectively, and is used to output a waveform according to the on-off state of the first contact piece (3) and the second contact piece (4).

8. The vehicle window assembly according to claim 7, characterized in that: The detection circuit comprises a power supply (8) and a current collection device (9); The power source (8) and the current collection device (9) are connected in series, one of the power source (8) and the current collection device (9) is electrically connected to the first contact piece (3), and the other is electrically connected to the second contact piece (4).

9. A vehicle door assembly, characterized in that: It comprises the motor as claimed in any one of claims 1 to 6 or the window assembly as claimed in any one of claims 7 to 8.

10. A vehicle, characterized in that: It comprises the motor as claimed in any one of claims 1 to 6 or the door assembly as claimed in claim 9.

11. A vehicle, characterized in that: It comprises a vehicle window assembly as described in any one of claims 7-8, wherein the vehicle window assembly is configured as a side window assembly or a sunroof assembly.

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