Vehicle window glass excitation driving lifter and vehicle comprising same

Abstract

The invention belongs to the technical field of automobile windows, and particularly relates to a vehicle window glass excitation driving lifter and a vehicle comprising the vehicle window glass excitation driving lifter, the vehicle window glass excitation driving lifter comprises an excitation linear motor assembly, an ECU assembly, a wiring harness assembly and a switching mechanism assembly, and the excitation linear motor assembly comprises a linear motor primary and a linear motor secondary; the primary part moves in the linear direction under the excitation effect to generate driving force to drive the glass bracket assembly to ascend and descend. The conversion mechanism assembly comprises a ball head and ball socket universal joint structure and is used for converting the linear motion into curvilinear motion conforming to the curve track of the window glass; and the ECU assembly is electrically connected with the motor, has boosting and closed-loop control functions, and is matched with the absolute magnetic grid encoder and the electromagnetic lock, so that the control precision and safety are improved. The system is simplified in structure, stable in operation, low in noise, high in adaptability and suitable for various window glass curvature designs, and the platformization capability of the system and the quality of the whole vehicle are remarkably improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive windows, and particularly relates to a window glass excitation-driven lifter and a vehicle including the same. Background Art

[0002] As an important part of the vehicle door system, the structural performance and operating quality of the window glass lifting drive system are directly related to the overall vehicle quality and the comfort experience of the driver and passengers.

[0003] Currently, the mainstream window glass lifting drive systems on the market mainly include two structural forms: rope-wheel type and gear-arm type. Such systems rely on mechanical transmission components for lifting motion. Although they have been applied on a large scale, they have certain deficiencies in terms of structural complexity, transmission smoothness, noise control, cost control, and adaptability. Specifically, the rope-wheel type system has problems such as rope wear and tension imbalance leading to jamming during lifting, and the gear-arm type structure is prone to jitter and structural noise due to limitations in meshing accuracy and friction characteristics; both belong to multi-component assembly systems, with high maintenance costs, and their reliability is greatly affected by assembly accuracy, and it is difficult to adapt to the increasingly complex and variable window glass curved surface designs. Especially in the case where current passenger cars widely use double-curved glass in the X-Y direction, due to the significant differences in door shapes and CAS surfaces among different vehicle models, the curvature of the glass guide rail changes significantly, and the traditional system cannot achieve structural platformization, resulting in poor product commonality, long R & D cycles, high development costs, and other problems.

[0004] To improve the above problems, the applicant introduced a linear motor as the driving source and innovated the structure and transmission method. The applicant disclosed a window glass regulator and a vehicle including the same in the patent with the publication number CN117846453A of the previous application, which realized the lifting control of the glass through a sliding contact power supply module in cooperation with a linear motor, an electromagnetic lock, and a position sensor, improving the running stability and anti-theft performance. This solution optimized the deficiencies of the traditional system in terms of mechanism integration and control accuracy to a certain extent, but it involved the cooperation and installation of multiple components such as a current collector, a guide rail, a magnetic head reader, a magnetic scale, and an electromagnetic lock, and the assembly structure was relatively complex. Moreover, the sliding contact power supply structure adopted has a high dependence on the electrical contact continuity during the window lifting process, and power interruption may occur when the contact is poor, thus affecting the stability of the glass lifting. Subsequently, the applicant further applied for a patent with the publication number CN222949664U, which disclosed a PCB-type excitation glass regulator and a vehicle including the same. This solution uses a PCB winding to construct a mover structure, forms a stator magnetic field with a magnetic steel array, and realizes the lifting motion of the window glass through a coreless linear motor. While reducing some traditional components, this solution reduces the system volume and improves the structural integration. However, the following technical problems still need to be solved: First, the magnetic steel structure relies on the skeleton for support. The assembly process has high requirements for positioning accuracy. Assembly errors are likely to cause magnetic field distortion, which in turn affects the thrust stability, resulting in fluctuations in the glass lifting speed and making it difficult to meet the high smoothness requirements. Second, the PCB winding itself has a relatively large thickness, and there are difficulties in adaptation in models with limited internal structure space in the car door, which limits the versatility and platformization ability of this solution. Third, the system adopts an open-loop control logic, and the glass lifting position cannot achieve high-precision closed-loop regulation. The operating accuracy is greatly affected by non-linear factors such as magnetic field uniformity, which is not conducive to meeting the higher requirements of high-end vehicles for running smoothness and precision control.

[0005] In summary, the existing window glass lifting drive systems include traditional rope-wheel type and toothed-arm type structures, as well as the above two relatively advanced electric drive solutions. Although they each have certain advantages, there are still significant deficiencies in adapting to the increasingly diverse glass curvature designs, meeting the requirements of high smoothness and low noise operation, supporting high-precision control, improving the system versatility, and reducing the manufacturing and maintenance costs. Therefore, how to provide a platformized window glass lifting drive device with a simplified structure, strong adaptability, smooth transmission, low noise, high control precision, and easy to promote has become an urgent technical problem in this field. Summary of the Invention

[0006] In view of this, the present invention aims to solve the deficiencies of the existing window glass lifting drive systems in adapting to diverse glass curvature designs, meeting the requirements of high smoothness and low noise operation, supporting high-precision control, improving the system versatility, and reducing the manufacturing and maintenance costs. It provides a window glass excitation drive lifter and a vehicle including the same. By introducing an excitation linear motor drive, using electromagnetic drive to replace the traditional mechanical structure, and realizing the flexible conversion of linear motion to the glass curve trajectory through a ball-head and ball-socket universal joint, cooperating with ECU control, electromagnetic lock, and absolute encoder, a high-performance lifting system with a simplified structure, fast response, precise control, and strong adaptability is constructed, effectively improving the system platformization ability and the vehicle quality.

[0007] To achieve the above object, the technical solution of the present invention is realized as follows: The first object of the present application is to disclose a window glass excitation drive lifter, including: An excitation linear motor assembly, which includes a linear motor secondary and a linear motor primary. The linear motor primary can linearly move relative to the linear motor secondary under the action of excitation, and is used to generate a linear motion driving force; An ECU assembly, electrically connected to the excitation linear motor assembly, and used to control the operation of the excitation linear motor assembly; A wiring harness assembly, used to connect the excitation linear motor assembly and the ECU assembly, and transmit electric power and signals; A conversion mechanism assembly is connected between the primary of the linear motor and the glass bracket assembly, and is used to convert the linear motion driving force into a curvilinear motion driving force to drive the glass bracket assembly to drive the vehicle window glass to move up and down along a predetermined trajectory. Wherein, the conversion mechanism assembly includes a ball and socket universal joint structure, and the ball and socket universal joint is used to realize the conversion of linear motion into curvilinear motion conforming to the arc trajectory of the vehicle window glass.

[0008] In an example of the present application, the excited linear motor assembly further includes: A secondary fixing plate for fixedly installing the secondary of the linear motor; A guide rail device is installed on the secondary fixing plate and is used to guide the linear motion of the primary of the linear motor; A slider is fixed on the primary of the linear motor and can slide on the guide rail device.

[0009] In an example of the present application, a first mounting plate is provided on the side of the primary of the linear motor away from the secondary of the linear motor, and a slider is provided on each side in the sliding direction of the first mounting plate. The guide rail device includes a first guide rail and a second guide rail, and the two sliders are respectively arranged to slide on the first guide rail and the second guide rail.

[0010] In an example of the present application, the excited linear motor assembly further includes: A stroke limiting member is installed on the guide rail device or the secondary fixing plate and is used to limit the moving stroke of the primary of the linear motor.

[0011] In an example of the present application, the secondary fixing plate includes a fixing plate body, a supporting side wall is circumferentially arranged on the fixing plate body, a first accommodating groove for accommodating the secondary of the linear motor is formed between the fixing plate body and the supporting side wall, a third connecting hole for installing the secondary of the linear motor is provided on the fixing plate body, and a second connecting hole for connecting the guide rail device is provided on the supporting side wall.

[0012] In an example of the present application, the ECU assembly includes: A control module for receiving a vehicle window lifting control instruction and generating a control signal; A boosting module is connected to the control module and is used to boost the power supply voltage to the working voltage required by the excited linear motor assembly; A connector is used to connect the wire harness assembly to realize the transmission of power and signals.

[0013] In an example of the present application, it further includes: A magnetic grating encoder, electrically connected to the ECU assembly, is used to record the movement position of the primary of the linear motor and feedback the position signal to the ECU assembly. The magnetic grating encoder is an absolute magnetic grating encoder, and each position can be used as a zero position; An electromagnetic lock, electrically connected to the ECU assembly, is used to lock and protect the window glass when the vehicle is powered off, and when the window glass operation ends or needs to be paused and held at a certain position in the stroke, the ECU controls the power-off and locking.

[0014] In an example of the present application, the ball-and-socket universal joint includes: A ball socket connecting seat, which is provided with a ball socket accommodating groove therein; A ball head, installed in the ball socket accommodating groove and rotatable in the groove; A connecting rod portion, connected to the ball head, for transmitting the linear motion driving force to the glass bracket assembly; A ball socket connecting cover, detachably connected to the ball socket connecting seat, for closing the ball socket accommodating groove to restrict the rotation range of the ball head and ensure that it does not come out.

[0015] In an example of the present application, the conversion mechanism assembly further includes a second connecting member. The second connecting member includes a first connecting plate, a second connecting plate and a third connecting plate connected in sequence. The first connecting plate, the second connecting plate and the third connecting plate are arranged in a stepped shape. The first connecting plate is provided with a connecting rod connecting seat for connecting and fixing with the connecting rod portion. One end of the glass bracket clip in the glass bracket assembly abuts against the second connecting plate and its end side wall is connected and fixed to the third connecting plate. The end of the glass bracket clip away from the second connecting member is used to fix the window glass.

[0016] The second object of the present application is to disclose a vehicle, including a vehicle body and a door, and a window glass excitation drive lifter as described above is provided on the door.

[0017] Compared with the prior art, the window glass excitation drive lifter and the vehicle including it of the present invention have the following advantages: 1. By using an excited linear motor as the lifting drive source and combining it with a high-strength secondary fixed structure, a precision guide rail assembly, and a double-slider support design, the entire primary motion process of the motor has excellent linearity and stability. The electromagnetic drive does not rely on traditional mechanical gears, ropes, or cam structures, effectively reducing friction and wear, eliminating transmission clearances and motion jitters, reducing operating noise, and improving transmission efficiency. At the same time, the double-guide arrangement of the slider and the guide rail improves the operating rigidity and anti-offset ability of the system, making the trajectory of the window glass stable, responsive, smooth, and fluent during the lifting process, avoiding the jamming and noise problems caused by tension fluctuations in the traditional rope and pulley system or poor meshing in the gear arm system. Thus, high-reliability and high-precision glass lifting control are achieved while simplifying the structure.

[0018] 2. By setting a ball-and-socket universal joint as a flexible conversion mechanism between linear motion and the curved trajectory of the glass guide rail, the lifter can adapt to the changes of double-curvature guide rails of window glasses of different vehicle models in the X-Y direction, eliminating the need to separately mold and adjust the guide rail structure for different glass shapes, greatly improving the adaptability and platformability of the system. Especially in mid- to high-end vehicle models with complex space curves in the glass lifting path, a compliant power transition is achieved through the multi-degree-of-freedom rotation of the ball head in the ball socket groove, avoiding jamming, friction overload, and positioning error problems caused by inconsistent paths. The multi-stage stepped arrangement of the second connecting piece further improves the force transmission stability and structural load-bearing strength, making the entire lifting transmission chain more efficient, compliant, and modularly applicable, contributing to the standardization of the vehicle platform development and the common parts management.

[0019] 3. This application also introduces an ECU assembly, an electromagnetic lock, and an absolute magnetic grating encoder at the electrical control level to form a closed-loop control system. The ECU has functions of boosting voltage, calculation, and signal management, and can achieve precise control and protection of the motor operating state. The absolute encoder continuously outputs accurate position data through real-time position feedback without the need for power-off reset self-learning, significantly improving the control accuracy and response speed. At the same time, the electromagnetic lock physically locks when the glass stops running or the vehicle is powered off, protecting the glass and the motor from heating or offset due to static suspension. This control system not only realizes the full automation and safety of window lifting but also improves the vehicle anti-theft performance and intelligent level. Combined with the modular design and easy assembly of the structural parts, it effectively reduces the system failure rate and the later maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic side view structure diagram of the excited drive window glass lifter according to the embodiment of the present invention; Figure 2 It is a schematic side view structure diagram of the second perspective of the excited drive window glass lifter according to the embodiment of the present invention; Figure 3Explosion structure schematic diagram of the window glass excitation drive lifter according to an embodiment of the present invention; Figure 4 Explosion structure schematic diagram of the window glass excitation drive lifter from a second perspective according to an embodiment of the present invention; Figure 5 Structure schematic diagram of the assembly of the excitation linear motor assembly, the conversion mechanism assembly and the glass bracket assembly in the window glass excitation drive lifter according to an embodiment of the present invention; Figure 6 is Figure 5 Structure schematic diagram of the second perspective of the structure shown in Figure 7 Side view structure schematic diagram of the secondary fixing plate according to an embodiment of the present invention; Figure 8 Structure schematic diagram of the assembly of the ball and socket universal joint and the second connecting member according to an embodiment of the present invention; Figure 9 Explosion structure schematic diagram of the assembly of the ball and socket universal joint and the second connecting member according to an embodiment of the present invention; The markings in the figure are indicated as: 100 - glass bracket assembly; 200 - excitation linear motor assembly; 300 - ECU assembly; 400 - wire harness assembly; 500 - conversion mechanism assembly; 1 - secondary fixing plate; 101 - fixing plate body; 102 - first accommodation groove; 103 - support side wall; 104 - first connection hole; 105 - second connection hole; 106 - third connection hole; 107 - fourth connection hole; 2 - linear motor secondary; 3 - guide rail device; 301 - first guide rail; 302 - second guide rail; 4 - stroke limiting member; 5 - linear motor primary; 6 - first mounting plate; 7 - control module; 8 - wire harness; 9 - boost module; 10 - connector; 11 - magnetic grating encoder; 12 - micro switch; 13 - electric plug lock; 14 - ball and socket universal joint; 1401 - ball socket connection seat; 1402 - ball socket accommodation groove; 1403 - ball head; 1404 - connecting rod portion; 1405 - ball socket connection cover; 15 - second connecting member; 1501 - first connecting plate; 1502 - second connecting plate; 1503 - third connecting plate; 1504 - connecting rod connection seat; 16 - glass bracket clip; 17 - third connecting member; 18 - insertion hole; 19 - slider. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0022] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present application. For the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters in the following drawings denote like items, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0023] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0024] It should be noted that in the description of the present application, the orientation or positional relationships indicated by the orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings. They are only for the convenience of describing the present application and simplifying the description. Without contrary instructions, these orientation terms do not indicate and imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the protection scope of the present application; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0025] It should be noted that in this application, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the presence of additional identical elements in the process, article or device including such element. In addition, it should be pointed out that the scope of the device in the embodiments of this application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. Additionally, features described with reference to certain examples may be combined in other examples.

[0026] As Figures 1-9 shown, this application discloses a window glass excitation-driven lifter, including: An excitation linear motor assembly 200, which includes a linear motor secondary 2 and a linear motor primary 5. The linear motor primary 5 can linearly move relative to the linear motor secondary 2 under the action of excitation, and is used to generate a linear motion driving force; An ECU assembly 300, electrically connected to the excitation linear motor assembly 200, and is used to control the operation of the excitation linear motor assembly 200; A wire harness assembly 400, used to connect the excitation linear motor assembly 200 and the ECU assembly 300, and transmit electric power and signals; A conversion mechanism assembly 500, connected between the linear motor primary 5 and the glass bracket assembly 100, and is used to convert the linear motion driving force into a curvilinear motion driving force to drive the glass bracket assembly 100 to drive the window glass to lift along a predetermined trajectory; Wherein, the conversion mechanism assembly 500 includes a ball and socket universal joint 14 structure, and the ball and socket universal joint 14 is used to realize the conversion of linear motion into curvilinear motion conforming to the arc trajectory of the window glass.

[0027] The present application discloses a window glass excitation-driven lifter with an integrated design. The device consists of an excitation linear motor assembly 200, an ECU assembly 300, a wire harness assembly 400, and a conversion mechanism assembly 500. The excitation linear motor assembly, as the core driving component, includes a primary and a secondary structure capable of relative movement. It drives the primary to move linearly along the axis through electromagnetic induction to output stable lifting power. The ECU assembly 300, as the central control module, receives the lifting command from the vehicle system and sends control signals to the motor assembly through the wire harness assembly 400 to precisely control its motion state. At the same time, it collects feedback signals for closed-loop adjustment. The conversion mechanism assembly 500 is arranged between the linear motor primary 5 and the glass bracket assembly 100 and uses the ball and socket universal joint 14 structure as the main transmission component. This structure can achieve three-dimensional flexible deflection while maintaining the connection strength, and can convert the linear displacement output by the motor into a curvilinear motion consistent with the curve trajectory of the window glass, thus effectively solving problems such as jamming, large resistance, and poor platform versatility in the glass trajectory adaptation of traditional structures, making it possible for the system to adapt to the glass curvatures of different vehicle models, and significantly improving the versatility, reliability, and running smoothness of the vehicle window system.

[0028] The window glass excitation-driven lifter described in the present application has a simple structure, runs smoothly, and has strong adaptability. By replacing traditional mechanical transmission with electromagnetic drive, it reduces the structural complexity and wear failure points. The ball and socket universal joint 14 is used to achieve efficient conversion from linear to curvilinear motion, avoiding the problem of glass jamming and significantly improving the degree of system platformization. The ECU assembly 300 combines with the wire harness assembly 400 to achieve precise closed-loop control to ensure the response speed and positioning accuracy of lifting. At the same time, the system runs with low noise and no obvious jitter in transmission, effectively improving the vehicle's sound insulation and ride comfort. It has good reliability, durability, and maintenance convenience, and is applicable to vehicle platforms with various window glass curvature shapes.

[0029] As a preferred example of the present application, the excitation linear motor assembly 200 further includes: A secondary fixing plate 1 for fixedly installing the linear motor secondary 2; A guide rail device 3 installed on the secondary fixing plate 1 for guiding the linear motion of the linear motor primary 5; A slider 19 fixed on the linear motor primary 5 and capable of sliding on the guide rail device 3.

[0030] In the window glass excitation-driven lifter described in the present application, the excitation linear motor assembly 200 further includes a structure support and guiding assembly. The secondary fixing plate 1 provides a stable fixing platform for the linear motor secondary 2. This fixing plate is made of high-rigidity material and is installed inside the door by combining a multi-point positioning structure, which can ensure good installation accuracy and mechanical strength even under long-term operation, thus effectively avoiding the position deviation of the linear motor secondary 2 caused by vibration or external force. The guide rail device 3 is installed on the secondary fixing plate 1 and is arranged parallel to the window running direction, which can provide a smooth sliding path for the linear motor primary 5. The slider 19 serves as a transmission medium between the linear motor primary 5 and the guide rail device 3. It is fixedly connected to the linear motor primary 5 as a whole and has a clearance fit with the surface of the guide rail device 3. It not only has excellent guiding accuracy but also can reduce the movement friction. The integrated combination of these three not only improves the structural integrity and mechanical stability of the entire motor assembly but also enables the linear motor primary 5 to achieve high linearity and high smoothness linear sliding under the action of electromagnetic force, providing a basic support for the precise transmission and stable operation of the entire glass lifter. Through the collaborative structure of the secondary fixing plate 1, the guide rail device 3, and the slider 19, the present application ensures the mechanical accuracy and overall stability during the motor operation, not only significantly reducing the noise and vibration during the window lifting process but also effectively eliminating the problems of uneven operation or jamming caused by guiding errors and component loosening in the traditional structure, while improving the vehicle's NVH performance and system response speed.

[0031] As a preferred example of the present application, a first mounting plate 6 is provided on the side of the linear motor primary 5 away from the linear motor secondary 2, and a slider 19 is provided on each of the two sides in the sliding direction of the first mounting plate 6. The guide rail device 3 includes a first guide rail 301 and a second guide rail 302, and the two sliders 19 are respectively arranged to slide on the first guide rail 301 and the second guide rail 302. In the example of the present application, in order to further improve the movement smoothness and precision control ability of the linear motor primary 5 in the window glass lifting system, a structurally stable first mounting plate 6 is added on the side of the linear motor primary 5 away from the secondary. The first mounting plate 6 is fixedly connected to the linear motor primary 5 by structural fitting or fasteners. A slider 19 is provided at each of its two symmetrical positions on the left and right, and the two sliders 19 are respectively fitted and installed on the first guide rail 301 and the second guide rail 302 on both sides of the linear motor secondary 2, forming a double-guide-rail and double-slider support structure. This layout improves the rigidity level and guiding stability of the entire motor movement system by dispersing the sliding load, increasing the guiding rigidity, and improving the running straightness of the linear motor primary 5. It is especially suitable for passenger vehicle models with limited space and high requirements for lifting precision and quietness. In addition, this structure avoids problems such as structural yaw, vibration, or guiding failure caused by a single rail or a single slider during the entire sliding process, providing a solid transmission foundation for the precise trajectory operation of the subsequent window glass.

[0032] The excitation linear motor structure adopted in this application, with a double-rail and double-slider design, has better running stability and anti-yaw ability compared to traditional single-rail or single-slider solutions. It effectively improves the guiding accuracy of the primary part and the overall structural rigidity during the window glass lifting process, making the glass lifting smoother and with lower running noise. While meeting the high-level comfort requirements, it also improves the assembly compatibility and reliability of the system in different vehicle models. At the same time, this structure is easy to process, assemble and modularize, reducing the risk of manufacturing error transmission and maintenance costs.

[0033] As a preferred example of this application, the excitation linear motor assembly 200 further includes: A stroke limiter 4, installed on the guide rail device 3 or the secondary fixing plate 1, for limiting the moving stroke of the linear motor primary 5.

[0034] In the example of this application, to ensure that the operating range of the linear motor primary 5 during lifting is controlled within a safe and reliable range, a stroke limiter 4 is provided in the excitation linear motor assembly 200. This limiting structure is preferably arranged at a preset position on the guide rail device 3 or the secondary fixing plate 1, and its function is to form a physical or inductive limiting block at both ends of the linear motion stroke, preventing the linear motor primary 5 from over-traveling due to reasons such as signal out-of-control, mechanical failure or abnormal load, resulting in structural interference or system damage. As a preferred example of this application, four stroke limiters 4 are provided, and they are arranged in pairs at the opposite ends of the sliding directions of the first guide rail 301 and the second guide rail 302, realizing full-coverage limit control at both ends of the double guide rails, effectively improving the symmetry and integrity of the system stroke monitoring. As a specific example of this application, a first connection hole 104 is provided on the secondary fixing plate 1, and the stroke limiter 4 is detachably fixed to the secondary fixing plate 1 through the first connection hole 104, having good detachability and maintenance convenience, and achieving a good balance between structural integration and system redundancy control ability.

[0035] As a preferred example of the present application, the secondary fixing plate 1 includes a fixing plate body 101. A closed supporting side wall 103 is provided around the circumferential direction of the fixing plate body 101. A first accommodating groove 102 for accommodating and fixing the linear motor secondary 2 is formed between the supporting side wall 103 and the fixing plate body 101. A third connection hole 106 is provided on the fixing plate body 101 for connecting and fixing the linear motor secondary 2. A second connection hole 105 is provided on the supporting side wall 103 for connecting to the guide rail device 3. In the example of the present application, to improve the overall stability and assembly accuracy of the motor fixing structure in the window glass excitation drive lifter, through the optimized secondary fixing plate 1, which includes an integrally formed fixing plate body 101 and a closed supporting side wall 103 disposed around its circumference, a first accommodating groove 102 for fixing the linear motor secondary 2 is formed therebetween. The depth and contour of this groove are customized according to the secondary structure characteristics to achieve precise positioning and uniform force application. A plurality of third connection holes 106 are preset on the fixing plate body 101 for firmly installing the secondary through threaded fastening to avoid loosening or offset during operation. At the same time, the second connection hole 105 provided on the supporting side wall 103 is structurally connected to the guide rail device 3, making the configuration of the entire excitation linear motor assembly 200 more compact and stable. By loading the guide rail on the supporting side, the rigidity of the overall motor load-bearing path can be further improved. In addition, the secondary fixing plate 1 is made of a lightweight and high-strength material, which not only ensures strength but also reduces weight. It not only meets the requirements of vehicle lightweighting but also helps to improve the drive response speed and reduce power consumption, and can effectively enhance the system operation reliability and platform compatibility ability.

[0036] The excitation linear motor assembly 200 described in the present application has a high degree of structural modularization and a compact layout, which is conducive to flexible integration in different vehicle models and reducing the overall manufacturing and assembly costs, and has excellent maintainability and industrial promotion potential.

[0037] As a preferred example of the present application, the ECU assembly 300 includes: A control module 7 for receiving a window lifting control instruction and generating a control signal; A boosting module 9 connected to the control module 7 for boosting the power supply voltage to the working voltage required by the excitation linear motor assembly; A connector 10 for connecting the wire harness assembly 400 to realize the transmission of power and signals.

[0038] The ECU assembly 300 of the present application serves as the control core of the window glass excitation-driven lifting system. It adopts an integrated module design and consists of three parts: a control module 7, a boost module 9, and a connector 10. Among them, the control module 7 serves as the logical control center of the entire system. It is used to receive the lifting instructions sent from the vehicle control system or the driver control unit, and after real-time calculation and analysis of relevant motion parameters through an internal algorithm module, it outputs precise drive control signals to the excitation linear motor assembly 200 to control its motion state. The boost module 9, according to the specific requirements of the motor for the drive voltage, stably boosts the vehicle-mounted conventional power supply voltage to the working voltage level within a set range to ensure that the motor still has sufficient thrust and response speed under complex working conditions. The connector 10 plays the role of an interface between the ECU assembly 300 and the wire harness assembly 400, and ensures the bidirectional stable transmission of power and control signals through a highly reliable electrical connection structure. The wire harness assembly 400 includes multiple wires 8, and the control module 7, the boost module 9, and the connector 10 are all connected to each other in pairs through the wires 8. By organically integrating the control module 7, the boost module 9, and the connector 10, the present application not only realizes the precise drive control and response adjustment of the linear motor, but also has the ability to automatically adapt to the power supply environment of different vehicle models. The setting of the boost module 9 effectively solves the problem of insufficient power caused by vehicle-mounted voltage fluctuations or motor load fluctuations, ensuring the stable operation of the system. The connector 10 simplifies the vehicle wiring and module assembly processes through a structured interface, improves the assembly efficiency and reduces the risk of miscontact, so that the entire set of window glass excitation-driven lifters performs more excellently in terms of control accuracy, response speed, energy efficiency, and product consistency, enhancing the vehicle's electronic control performance and user operation experience.

[0039] As a preferred example of the present application, the window glass excitation-driven lifter further includes: A magnetic grating encoder 11, electrically connected to the ECU assembly 300, is used to record the motion position of the primary part 5 of the linear motor and feedback the position signal to the ECU assembly 300. The magnetic grating encoder is an absolute magnetic grating encoder, and each position can be used as a zero position.

[0040] For the window glass excitation-driven lifter described in this application, to improve the position detection accuracy and control response speed of the window glass excitation-driven lifter during actual operation, an absolute magnetic grating encoder 11 is introduced into the system structure. This encoder obtains high-precision position change information through the relative movement with the primary of the linear motor 5 and feeds it back to the ECU assembly 300 in real time. The encoder as a whole includes two parts: a magnetic grating scale and a reading magnetic head. Among them, the magnetic grating scale is fixedly arranged on the secondary of the linear motor 2, and the reading magnetic head moves synchronously with the primary of the linear motor 5 to form a position signal by sensing the periodic change of the magnetic field. By adopting an absolute coding structure, the primary of the linear motor 5 has a unique identification code at each position. The ECU can identify the current position when the system is powered on, without having to perform the zero self-learning process required by traditional incremental encoders at startup. Thus, the system startup process and control logic are significantly simplified, and the initialization efficiency and anti-interference stability are improved. This design is not only applicable to the application scenario of frequent start and stop of the whole vehicle but also effectively avoids the operation deviation problems caused by position loss or misjudgment after power-off and restart, enabling the whole process of window glass lifting to always remain within the precise trajectory control range, and ultimately effectively improving the intelligent control level of the whole vehicle, the window operation quality, and the comfort experience of the passengers and drivers. In the example of this application, the magnetic grating encoder 11 and the control module 7 are both fixed on the first mounting plate 6 and move integrally with the primary of the linear motor 5.

[0041] As a preferred example of this application, the window glass excitation-driven lifter further includes: An electromagnetic lock, electrically connected to the ECU assembly 300, is used to lock and protect the window glass when the whole vehicle is powered off, and when the window glass operation is over or needs to be paused and held at a certain position in the stroke, it is controlled by the ECU to cut off the power and lock. In the example of this application, the electromagnetic lock includes a micro switch 12 and an electric plug lock 13. The micro switch 12 is used to sense the position state of the window glass, and the electric plug lock 13 is used to mechanically lock the window glass.

[0042] In this application, an electromagnetic lock structure is further added on the basis of the motor control system. The electromagnetic lock and the ECU assembly form a closed-loop control system through electrical connection. Its structure includes two core components, a micro switch 12 and an electric plug lock 13, which work together. The micro switch 12 is installed at a key position associated with the travel of the window glass, and is used to accurately sense whether the glass is at the end point or paused midway and feedback the detection result to the ECU assembly 300 in real time. The electric plug lock 13 is installed on the glass bracket assembly 100 or related fixed parts, and is used to perform a power-off locking action according to the control command of the ECU assembly 300 to achieve the physical locking function. This structure can immediately lock the window glass at the current position after the vehicle is powered off or the control system command is issued, avoiding the glass from falling or shifting during power-off, abnormal conditions or window pauses. It is especially suitable for high-demand usage scenarios that require anti-theft, anti-misoperation or protection against motor heat loss. At the same time, the electromagnetic lock structure is compact and easy to integrate, and its control logic can be directly managed by the ECU and incorporated into the overall software system for unified control, simplifying the system configuration and enhancing the usability. In the example of this application, the electromagnetic lock and the magnetic grid encoder 11 are arranged on opposite sides of the first mounting plate 6. A plurality of insertion holes 18 are arranged on the support side wall 103, and the plurality of insertion holes 18 are evenly distributed along the sliding direction of the linear motor primary 5. The electric plug lock 13 is inserted into the insertion holes 18 in the power-off locked state for locking.

[0043] In this application, by setting an electromagnetic lock structure in the window glass excitation drive lifter and adopting a sensing and locking mechanism combining the micro switch 12 and the electric plug lock 13, it is possible to actively perform a locking operation in key states such as when the vehicle is powered off or the glass pauses midway, effectively preventing the window glass from malfunctioning or shifting in position due to factors such as system out-of-control, external interference or motor inertia, improving the static safety and anti-theft ability of the entire system. At the same time, it protects the motor mover and its surrounding components from electromagnetic heating or mechanical fatigue caused by long-term hovering. The electromagnetic lock structure is combined with ECU control to achieve integrated software and hardware management, with rapid response and precise control, overall improving the reliability, safety and controllability of the system, providing a higher level of user safety guarantee and intelligent control foundation for the vehicle, and meeting the comprehensive performance requirements of "safety, intelligence, and high integration" for the electric control lifting system of high-end intelligent vehicles.

[0044] As a preferred example of this application, the ball and socket universal joint 14 includes: A ball socket connecting seat 1401 having a ball socket receiving groove 1402; A ball head 1403, which cooperates with the ball socket receiving groove 1402 and can rotate freely in the ball socket receiving groove 1402; A connecting rod portion 1404 connected to the ball head portion 1403 for transmitting the linear motion driving force to the glass holder clamp 16 of the glass holder assembly 100; The ball and socket connection cover 1405 is detachably connected to the ball and socket connection seat 1401 and is used to cover the ball and socket receiving groove 1402 to ensure that the ball head 1403 can rotate stably in the ball and socket receiving groove.

[0045] In the vehicle window glass excitation drive lifter described in the present application, the conversion mechanism assembly 500 preferably adopts a ball head and ball socket universal joint 14 structure to achieve a flexible transition from a linear motion to a curved trajectory. The universal joint is composed of a ball socket connection seat 1401, a ball socket receiving groove 1402, a ball head 1403, a connecting rod 1404 and a ball socket connection cover 1405. The ball socket connection seat 1401 is the basis of the overall structure, and a ball socket receiving groove 1402 is provided inside the ball socket connection seat 1401 for embedding the ball head 1403 to form a spherical fit. 03 allows it to rotate flexibly within a multi-dimensional angle range through the principle of ball center rotation, and the connecting rod part 1404 is fixedly connected to the ball head 1403 and extends outward, establishing a force transmission relationship with the glass bracket assembly 100, which is used to accurately transmit the linear driving force to the window glass bracket clamp 16, thereby realizing the arc trajectory movement of the glass, and the ball socket connection cover 1405 is detachably connected to the ball socket connection seat 1401 through a thread or a buckle, while covering the ball socket receiving groove 1402 and limiting the ball head 1403 within the range of motion. The ball head and socket universal joint 14 structure is configured to stably rotate and prevent it from being separated from the groove body. When the linear motor primary 5 is displaced in the axial direction under the drive of the control signal, the displacement is transmitted to the ball head 1403 through the ball socket connecting seat 1401 connected thereto, and then transmitted to the glass bracket clamp 16 of the glass bracket assembly 100 through the connecting rod portion 1404 connected to the ball head 1403. Since the ball head 1403 is located in the ball socket receiving groove 1402 and is allowed to rotate within the spherical range, the ball socket connecting seat 1401 is connected to the ball head 1403. The linear motion transmitted by 1401 can form a freely adjustable turning path inside the ball socket. The rotation angle automatically adjusts the direction according to the curvature of the window glass guide rail and acts on the glass bracket clamp 16 connected thereto through the connecting rod 1404, thereby realizing the lifting and lowering motion consistent with the curved trajectory of the glass. At the same time, the ball socket connecting cover 1405 maintains the constraint and support for the ball head 1403 during the whole process, avoiding the ball head 1403 from falling out or shaking due to unbalanced load or external force, thereby ensuring the continuity of the lifting operation and the structural safety.

[0046] By adopting the exquisitely structured ball-head ball-socket universal joint 14, this application enables natural and compliant motion conversion between linear driving force and non-linear trajectories. This not only enhances the smoothness and adaptability during the window glass lifting process but also, due to the multi-angle adjustment ability of this structure, it can be widely applied to scenarios of different vehicle models and different glass trajectories, thus achieving the dual goals of platform component sharing and customized path matching. In addition, the setting of the ball-socket connection cover 1405 not only ensures the stability of the ball head 1403 during high-frequency motion but also facilitates later maintenance and replacement, reduces the system maintenance cost, overall improves the structural reliability, transmission efficiency, and operating life of the lifting system, while optimizing the assembly flexibility and in-vehicle noise reduction experience, providing a higher level of comfort and safety guarantee for passengers.

[0047] As a preferred example of this application, the conversion mechanism assembly 500 further includes a second connecting member 15. The second connecting member 15 includes a first connecting plate 1501, a second connecting plate 1502, and a third connecting plate 1503 that are connected in sequence. The first connecting plate 1501, the second connecting plate 1502, and the third connecting plate 1503 are arranged in a stepped manner. A connecting rod connecting seat 1504 is provided on the first connecting plate 1501 for fixedly connecting with the connecting rod portion 1404. One end of the glass bracket clamp 16 abuts against the second connecting plate 1502 and its end sidewall is fixedly connected to the third connecting plate 1503. The end of the glass bracket clamp 16 away from the second connecting member 15 is used to fix the window glass. In the window glass excitation-driven lifter provided by this application, to achieve stable transmission of the linear driving force to the glass bracket and improve the structural compactness and assembly efficiency, the second connecting member 15 is provided in the conversion mechanism assembly. The second connecting member 15 is composed of the first connecting plate 1501, the second connecting plate 1502, and the third connecting plate 1503 connected in sequence. The overall stepped distribution enables optimization of the spatial distribution of the force transmission path under limited structural height. A connecting rod connecting seat 1504 is provided on the upper surface of the first connecting plate 1501 for reliable fixation with the connecting rod portion 1404 of the ball-head ball-socket universal joint 14 to ensure accurate transmission of the driving force from the motor side to the body of the second connecting member 15. The middle second connecting plate 1502 serves as the main supporting surface of the glass bracket clamp 16, and its horizontal arrangement facilitates stable positioning of one end of the glass bracket clamp 16 in abutment. The third connecting plate 1503 and the sidewall of the glass bracket clamp 16 form a stable clamping structure to prevent the clamp from laterally shifting or disengaging due to glass load or vibration. The three connecting plates form multi-faceted connections in the vertical and horizontal directions through the stepped form, enhancing the integrity of the force transmission path and the structural torsional stiffness, making the force distribution during the lifting process of the entire bracket and glass more reasonable and significantly improving the overall mechanical strength and durability of the connection area.

[0048] The window glass excitation-driven lifter disclosed in this application, by adopting the combined structure of an excitation linear motor and a ball-and-socket universal joint, integrates modules such as an ECU control assembly, a magnetic grating encoder, an electromagnetic lock, a limit structure, and a high-strength connection assembly, achieving full-chain innovation and optimization from the drive source, transmission mechanism, control system to the glass fixing structure. The primary of the linear motor runs smoothly and responds quickly under the double-guided support of the guide rail and the slider. The electromagnetic drive mode replaces the traditional mechanical transmission, effectively reducing wear and noise, and realizes boost, control, and closed-loop regulation through the ECU to ensure precise and safe lifting. At the same time, the magnetic grating encoder adopts absolute positioning technology, and can obtain position data in real time without reset self-learning, greatly improving the control accuracy and anti-interference ability. The electromagnetic lock can lock the glass position when the vehicle is powered off or paused, effectively enhancing the anti-theft and motor protection functions. In addition, the ball-and-socket universal joint flexibly transitions the linear drive into the arc movement of the glass guide rail, and is matched with the multi-stage plate-shaped force-sharing support design of the second connecting piece, enabling the glass curvatures of different vehicle models to be compatible, and improving the platform versatility and adaptability. The secondary fixing plate and the limit structure enhance the system structural rigidity, assembly convenience, and maintenance efficiency through modular and detachable arrangements. The entire lifter system runs stably, has a compact structure, and a high degree of platformization. It not only significantly improves the smoothness, quietness, and responsiveness of the window glass lifting process, but also enhances the overall NVH performance, safety level, and user experience of the vehicle, and has excellent industrialization promotion prospects and application value on multi-vehicle models platforms.

[0049] This application also discloses a vehicle, on which the above-mentioned window glass excitation-driven lifter is provided. Specifically, the vehicle includes a body and a door, and the above-mentioned window glass excitation-driven lifter is provided on the door. The door includes: a door body; a window glass that can be lifted and lowered freely along a preset trajectory; and a window glass excitation-driven lifter assembled on the door body for driving the window glass to lift and lower. The door body has a storage part for accommodating the window glass and a vehicle door frame located thereon. The storage part includes an inner panel located on the inner side of the carriage and an outer panel located on the outer side of the carriage. An inner space of the door is formed between the inner panel and the outer panel. The window glass excitation-driven lifter is installed in the inner space of the door and is inclined relative to the door body in the front-rear direction of the vehicle.

[0050] As a preferred example of the present application, the window glass excitation-driven lifter further includes a third connecting member 17. One end of the third connecting member 17 is fixedly connected to the fourth connecting hole 107 on the secondary fixing plate 1 through a connecting screw, and the other end is fixedly connected to the vehicle door. Preferably, a plug post is provided on the side of the fixing plate body 101 away from the linear motor secondary 2 for the connection and fixation between the secondary fixing plate 1 and the vehicle door. In the present application, a combination structure of the third connecting member 17 and the plug post is provided to achieve a multi-point fixed connection between the lifter and the vehicle door. One end of the third connecting member 17 is fastened in the preset fourth connecting hole 107 on the secondary fixing plate 1 through a connecting screw to achieve a rigid connection with the motor body, and the other end extends to the vehicle door installation position and is reliably connected to the inner skeleton or panel of the vehicle door by means of threading or riveting. In addition, a plug post is separately provided on the side of the secondary fixing plate 1 away from the linear motor secondary 2. The plug post can be inserted into the socket or positioning hole reserved on the vehicle door panel to form an auxiliary positioning structure, effectively avoiding the structural displacement caused by inertia or load during the operation of the lifter. The plug post and the third connecting member 17 jointly construct a two-point fixed layout, which not only enhances the overall rigidity of the lifter installation system, but also provides a flexible and reliable installation solution for vehicle doors with complex curvatures or compact structures, taking into account the assembly efficiency and modular adaptation ability while ensuring structural safety, and is suitable for popularization and application on various vehicle platforms.

[0051] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A window glass excitation-driven lifter, characterized in that, Comprising: An excitation linear motor assembly (200), which includes a linear motor secondary (2) and a linear motor primary (5). The linear motor primary (5) can linearly move relative to the linear motor secondary (2) under the action of excitation, and is used to generate a linear motion driving force; An ECU assembly (300), electrically connected to the excitation linear motor assembly (200), and is used to control the operation of the excitation linear motor assembly (200); A wiring harness assembly (400), used to connect the excitation linear motor assembly (200) and the ECU assembly (300), and transmit electric power and signals; A conversion mechanism assembly (500), connected between the linear motor primary (5) and the glass bracket assembly (100), and is used to convert the linear motion driving force into a curvilinear motion driving force to drive the glass bracket assembly (100) to drive the window glass to lift and lower along a predetermined trajectory; Wherein, the conversion mechanism assembly (500) includes a ball and socket universal joint (14) structure, and the ball and socket universal joint (14) is used to realize the conversion of linear motion into curvilinear motion conforming to the arc trajectory of the window glass.

2. The window glass excitation-driven lifter according to claim 1, wherein The excitation linear motor assembly (200) further includes: A secondary fixing plate (1), used to fixedly install the linear motor secondary (2); A guide rail device (3), installed on the secondary fixing plate (1), and is used to guide the linear motion of the linear motor primary (5); A slider (19), fixed on the linear motor primary (5), and can slide on the guide rail device (3).

3. The window glass excitation-driven lifter according to claim 2, wherein, A first mounting plate (6) is arranged on the side of the linear motor primary (5) away from the linear motor secondary (2), and a slider (19) is arranged on each side of the sliding direction of the first mounting plate (6). The guide rail device (3) includes a first guide rail (301) and a second guide rail (302), and the two sliders (19) are respectively arranged to slide on the first guide rail (301) and the second guide rail (302).

4. The window glass excitation-driven lifter according to claim 3, characterized in that, The excitation linear motor assembly (200) further includes: A stroke limiting member (4), installed on the guide rail device (3) or the secondary fixing plate (1), and is used to limit the moving stroke of the linear motor primary (5).

5. The window glass excitation-driven lifter according to claim 2 or 3 or 4, characterized in that, The secondary fixing plate (1) includes a fixing plate body (101), a supporting side wall (103) is circumferentially arranged on the fixing plate body (101), a first accommodating groove (102) for accommodating the linear motor secondary (2) is formed between the fixing plate body (101) and the supporting side wall (103), a third connection hole (106) for installing the linear motor secondary (2) is provided on the fixing plate body (101), and a second connection hole (105) for connecting the guide rail device (3) is provided on the supporting side wall (103).

6. The window glass excitation drive lifter according to claim 5, characterized in that, The ECU assembly (300) includes: A control module (7), used to receive a window lifting control instruction and generate a control signal; A boost module (9), connected to the control module (7), and is used to boost the power supply voltage to the working voltage required by the excitation linear motor assembly; A connector (10) for connecting the wire harness assembly (400) to achieve the transmission of power and signals.

7. The window glass excitation-driven lifter according to claim 6, wherein, It further includes: A magnetic grating encoder (11) electrically connected to the ECU assembly (300), which is used to record the movement position of the linear motor primary (5) and feedback the position signal to the ECU assembly (300). The magnetic grating encoder (11) is an absolute magnetic grating encoder, and each position can be used as a zero position; An electromagnetic lock electrically connected to the ECU assembly (300), which is used to lock and protect the window glass when the vehicle is powered off, and when the window glass operation ends or needs to be paused and held at a certain position in the stroke, it is controlled by the ECU assembly (300) to cut off the power and lock.

8. The window glass excitation-driven lifter according to claim 7, characterized in that, The ball-and-socket universal joint (14) includes: A socket connection seat (1401) with a socket receiving groove (1402) provided therein; A ball head (1403) installed in the socket receiving groove (1402) and rotatable in the groove; A connecting rod portion (1404) connected to the ball head (1403) for transmitting the linear motion driving force to the glass bracket assembly (100); A socket connection cover (1405) detachably connected to the socket connection seat (1401) for closing the socket receiving groove (1402) to restrict the rotation range of the ball head (1403) and ensure that it does not come out.

9. The window glass excitation-driven lifter according to claim 8, characterized in that, The conversion mechanism assembly (500) further includes a second connecting member (15). The second connecting member (15) includes a first connecting plate (1501), a second connecting plate (1502), and a third connecting plate (1503) connected in sequence. The first connecting plate (1501), the second connecting plate (1502), and the third connecting plate (1503) are arranged in a stepped shape. A connecting rod connection seat (1504) is provided on the first connecting plate (1501) for connecting and fixing with the connecting rod portion (1404). One end of the glass bracket clip (16) in the glass bracket assembly (100) abuts against the second connecting plate (1502) and its end sidewall is connected and fixed to the third connecting plate (1503). The end of the glass bracket clip (16) away from the second connecting member (15) is used to fix the window glass.

10. A vehicle, comprising a vehicle body and a vehicle door, characterized in that, The window glass excitation drive lifter according to any one of claims 1 to 9 is provided on the vehicle door.

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