Supporting rod ball socket structure, supporting rod assembly and vehicle

Abstract

The invention provides a supporting rod ball socket structure, a supporting rod assembly and a vehicle. The supporting rod ball socket structure comprises a structure body with a containing cavity and a PCB arranged in the containing cavity. The structure body is provided with an opening allowing the PCB to enter the containing cavity and a clamping part located in the containing cavity, the clamping part is clamped on the side, facing the opening, of the PCB, and the PCB is clamped in the containing cavity. According to the supporting rod ball socket structure, the containing cavity and the opening allowing the PCB to enter the containing cavity are formed in the structure body, and the clamping part is clamped to the side, facing the opening, of the PCB, so that the assembling process of the PCB is simplified, meanwhile, the installation state of the PCB can be checked through the opening, and the installation efficiency of the PCB is improved. Therefore, the visual detection assembly effect of the PCB can be improved, the problem that the installation state of the PCB cannot be effectively detected due to the fact that the PCB cannot be visually detected in the prior art, and the Hall is abnormal due to the fact that the PCB is assembled obliquely is solved, and the use effect of the PCB can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle parts, in particular to a stay rod ball socket structure. Meanwhile, the present application also relates to a stay rod assembly provided with the stay rod ball socket structure, and a vehicle provided with the stay rod assembly. BACKGROUND

[0002] The vehicle electric back door system can realize electric unlocking and locking and electric lifting and closing of the back door through simple operation of an electric switch, and integrates functions such as anti-pinch protection and opening height setting. The traditional electric back door system is generally composed of an electric stay rod, a balance rod, a stay rod bracket, a ball head bolt, a self-suction lock and other components. The electric stay rod is the core component, which is used to drive the back door to lift and close.

[0003] The vehicle back door stay rod structure mainly includes a ball socket, a Hall sensor, a motor, a speed reducer, a screw rod, a nut and a spring. When the motor receives the instruction of the controller module, it will start to rotate forward or reverse, and increase the torque through the speed reducer, so as to drive the screw rod to rotate. In the process of relative movement between the screw rod and the nut, the compression of the spring helps to push the stay rod to elongate or shorten. The Hall sensor at the tail of the motor will feed back signals to the controller to ensure the accurate opening and closing positions of the stay rod.

[0004] This stay rod structure is very important in the application of the vehicle back door. The support force provided by the stay rod overcomes the tail door gravity moment and friction moment through the torque generated by the hinge rotating shaft, so that the tail door can be smoothly opened or closed. In addition, according to the design requirements of the whole vehicle and the analysis of ergonomics, the arrangement angle and position of the stay rod are also accurately adjusted to ensure that the tail door does not hit the head when it is opened, and it is convenient to pull the handle or door switch button when it is manually closed.

[0005] Due to the unreasonable structure design of the electric pile stay rod, the Hall signal is abnormal during the use of the stay rod, resulting in failure of the electric opening and closing function of the back door. The main reason is that the assembly of the PCB board needs to be first clamped to the soft pad bracket, and then the soft pad bracket is buckled to the ball socket assembly to complete the assembly. Since the soft pad bracket may pull the PCB board during buckling, and since the PCB clamping structure on the soft pad bracket is located on the reverse side, it cannot be confirmed whether it is clamped in place after assembly, so that effective detection cannot be carried out, and finally the problem of PCB board assembly skewing and causing Hall abnormality occurs. SUMMARY

[0006] Therefore, the present application aims to provide a stay rod ball socket structure to simplify the assembly process of the PCB board and visually detect the assembly effect of the PCB board.

[0007] To achieve the above-mentioned purposes, the technical scheme of the present application is as follows:

[0008] The strut ball socket structure comprises a structure body with a containing cavity, and a PCB board arranged in the containing cavity; the structure body is provided with an opening for the PCB board to enter the containing cavity, and a clamping part in the containing cavity, which is clamped on the side of the PCB board facing the opening and clamps the PCB board in the containing cavity.

[0009] Further, the structure body comprises a main body part and a ball socket part, the containing cavity is arranged on the main body part, and the ball socket part is arranged at the end of the main body part away from the opening; the containing cavity is provided with a mounting seat, and a connector is arranged on the mounting seat, which is used to be connected with a driving part.

[0010] Further, the mounting seat is provided with a mounting groove, and a clamping block at the slot opening of the mounting groove; the slot opening of the mounting groove is in the same direction as the opening, and the connector is clamped in the mounting groove by the clamping block.

[0011] Further, the PCB board is provided with a limiting groove; the mounting seat is inserted into the limiting groove, and the mounting seat abuts against the PCB board and can limit the rotation of the PCB board relative to the structure body.

[0012] Further, the mounting seat extends to the opening, and the mounting seat cooperates with the limiting groove to guide the PCB board to be inserted into the containing cavity.

[0013] Further, the structure body is provided with a partition, which is arranged on the side of the PCB board away from the opening; the PCB board is provided with a wire harness connecting part, and the wire harness connecting part and the connector are arranged on the two opposite sides of the partition.

[0014] Further, the structure body is provided with a buffer pad at one end of the opening, which surrounds the opening and is used to be connected with a driving part.

[0015] Further, the structure body is provided with a support seat in the containing cavity, which is arranged along the circumference of the containing cavity; the clamping part comprises a buckle arranged in the containing cavity, which clamps the PCB board on the support seat.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] The strut ball-and-socket structure of the present invention, by providing a receiving cavity and an opening for the PCB board to enter the receiving cavity on the structure body, and with the locking part locking onto the side of the PCB board facing the opening, not only simplifies the assembly process of the PCB board, but also allows the installation status of the PCB board to be viewed through the opening, thereby improving the visual inspection effect of the PCB board assembly. This overcomes the problem in the prior art that the PCB board cannot be visually inspected, thus making it impossible to effectively detect the installation status of the PCB board, and easily leading to PCB board misalignment and Hall effect abnormalities, thereby improving the performance of the PCB board.

[0018] Furthermore, the design of the main body and the ball-and-socket section facilitates processing and forming, and meets the usage requirements of the strut ball-and-socket structure. Simultaneously, the connector mounted on the mounting base within the receiving cavity, compared to the existing structure where the connector is placed on a buffer pad, effectively improves the stability of the connector installation and facilitates accurate insertion of the drive unit's pins into the connector, thereby enhancing the strut's performance. The opening of the mounting slot on the mounting base faces the same direction as the main opening, facilitating convenient and visible installation of the connector within the mounting slot. The connector is secured in the mounting slot by a locking block, improving installation stability and simplifying the structure. This design does not affect the connection between the pins and the connector and avoids the risk of misalignment between the drive unit's pins and the connector due to unstable power connector positioning.

[0019] Secondly, the mounting base is inserted into the limiting slot on the PCB board, restricting the rotation of the PCB board relative to the structural body, thus improving the assembly stability of the PCB board. Its simple structure allows for full utilization of the mounting base to achieve the limiting function, saving space within the receiving cavity compared to a separate limiting structure. Furthermore, the limiting slot's simple structure makes it easy to machine onto the PCB board. The mounting base extends to the opening, and its cooperation with the limiting slot guides the PCB board into the receiving cavity, improving installation efficiency and accuracy. This, in turn, enhances the cooperation between the Hall sensor on the PCB board and the Hall sensor bracket on the motor. Moreover, it saves space within the receiving cavity compared to a separate guide structure.

[0020] Further, by arranging the partition on the structure body on the side opposite to the opening of the PCB board, and arranging the wire harness connecting part and the connector on the two opposite sides of the partition, the risk of short circuit caused by the close distance between the signal wire harness and the connector and the discing together during installation can be avoided. The buffer pad on the structure body is arranged around the opening and connected with the driving part, which reduces the vibration of the driving part output to the ball socket structure, and can improve the matching effect of the Hall sensor on the PCB board and the Hall sensor bracket on the driving part. By arranging the support seat in the accommodating cavity, the space occupied is reduced while the PCB board is supported, which can facilitate the arrangement of the wire harness in the accommodating cavity; the buckle of the clamping part clamps the PCB board on the support seat, which not only facilitates the PCB to pass through the buckle and be clamped on the clamping seat, but also avoids damaging the PCB during installation.

[0021] In addition, another object of the present application is to provide a strut assembly provided with the strut ball socket structure as described above.

[0022] The strut assembly of the present application, by arranging the strut ball socket structure as described above, can improve the installation and use effect of the PCB board, and improve the use performance of the strut assembly.

[0023] In addition, the present application also provides a vehicle provided with the strut assembly as described above.

[0024] The vehicle of the present application, by arranging the strut assembly as described above, can improve the use performance of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the application, and are incorporated herein for purposes of illustration. The embodiments of the present application, and the explanations given, serve to explain the application, and are not intended to limit the same. In the drawings:

[0026] Figure 1 Structure schematic view of the strut ball socket structure according to the embodiment of the present application in the first perspective view;

[0027] Figure 2 Structure schematic view of the strut ball socket structure according to the embodiment of the present application in the second perspective view;

[0028] Figure 3 Structure schematic view of the strut ball socket structure according to the embodiment of the present application in the third perspective view;

[0029] Figure 4 Structure schematic view of the strut ball socket structure according to the embodiment of the present application without the PCB board;

[0030] Figure 5Structure schematic diagram of part structure of the support rod ball socket structure in another view angle according to the embodiment of the present application;

[0031] Figure 6 Structure schematic diagram of part structure of the support rod ball socket structure in another view angle according to the embodiment of the present application;

[0032] Figure 7 Structure schematic diagram of part internal structure of the support rod ball socket structure without partition according to the embodiment of the present application;

[0033] Figure 8 Structure schematic diagram of part internal structure of the support rod ball socket structure with partition according to the embodiment of the present application;

[0034] Figure 9 Structure schematic diagram of the PCB according to the embodiment of the present application;

[0035] Figure 10 Structure schematic diagram of the mounting seat according to the embodiment of the present application;

[0036] Figure 11 Structure schematic diagram of the mounting seat, support seat and connector according to the embodiment of the present application;

[0037] Figure 12 Structure schematic diagram of the buffer pad according to the embodiment of the present application.

[0038] Explanation of reference signs:

[0039] 1, ball socket part; 2, main body part; 3, PCB; 4, buffer pad; 5, mounting seat;

[0040] 200, accommodating cavity; 201, buckle; 2011, connecting arm; 2012, clamping head; 202, limiting protrusion; 203, support seat; 204, protruding part; 205, partition; 206, connecting groove;

[0041] 301, wire harness soldering hole; 302, clamping groove; 303, limiting groove;

[0042] 401, recess; 402, protruding part;

[0043] 500, mounting groove; 501, connector; 502, clamping block; 5021, extending arm; 5022, protruding block; 503, through hole. DETAILED DESCRIPTION

[0044] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0045] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0046] In addition, in the description of the present application, unless otherwise explicitly limited, the terms "mounting", "connecting", "connection", "connector" should be broadly understood. For example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood in conjunction with the specific circumstances.

[0047] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0048] The present embodiment relates to a strut ball socket structure to simplify the assembly process of the PCB 3 by optimizing its own structure, and facilitate visual inspection of the assembly effect of the PCB 3.

[0049] Overall, the strut ball socket structure includes a structure body having a receiving cavity 200, and a PCB 3 arranged in the receiving cavity 200. The structure body is provided with an opening for the PCB 3 to enter the receiving cavity 200, and a clamping portion in the receiving cavity 200, which is clamped on the side of the PCB 3 facing the opening and clamps the PCB 3 in the receiving cavity 200.

[0050] The strut ball socket structure described in the present embodiment, by providing a receiving cavity 200 on the structure body, and an opening for the PCB 3 to enter the receiving cavity 200, and the clamping portion clamped on the side of the PCB 3 facing the opening, not only facilitates the simplification of the assembly process of the PCB 3, but also allows the installation status of the PCB 3 to be viewed through the opening, thereby facilitating the improvement of the visual inspection assembly effect of the PCB 3, overcoming the problem that the PCB 3 cannot be visually inspected in the prior art, so that the installation status of the PCB 3 cannot be effectively detected, and the problem of PCB 3 assembly skewing leading to Hall abnormality is prone to occur, thereby facilitating the improvement of the use performance of the PCB.

[0051] Based on the overall introduction as above, an exemplary structure of the strut ball socket structure described in the present embodiment is as follows Figures 1 to 3As shown in the specific embodiments, the support rod ball socket structure can be applied to the support rod of the back door of a vehicle. As a preferred embodiment, the structural body in the embodiment includes a main body part 2 and a ball socket part 1, and a receiving cavity 200 is arranged on the main body part 2, and the ball socket part 1 is arranged at the end of the main body part 2 away from the opening. A mounting seat 5 is arranged in the receiving cavity 200, and a connector 501 is arranged on the mounting seat 5, and the connector 501 is used to be connected with the driving part.

[0052] Here, the arrangement of the main body part 2 and the ball socket part 1 in the structural body is beneficial to the processing and molding, and is beneficial to meeting the use requirements of the support rod ball socket structure. At the same time, compared with the structure in the prior art that the connector 501 is arranged on the buffer pad 4, the arrangement stability of the connector 501 can be effectively improved by arranging the connector 501 on the mounting seat 5 in the receiving cavity 200, the PIN pin of the driving part can be accurately inserted into the connector 501, and thus the use effect of the support rod can be improved.

[0053] The ball socket part 1 in the embodiment is substantially the same as the ball socket in the prior art, and the specific structure is shown in Figure 1 and Figure 2 The ball socket part 1 generally includes a receiving groove for accommodating and supporting the ball head, so that the ball head can be assembled and positioned with the ball socket. This design enables the ball head and the ball socket to be detachably connected, which is convenient for maintenance and replacement.

[0054] Of course, the ball socket part 1 can also have some special designs, such as a pin hole, and the pin is connected to the ball socket framework after penetrating through the pin hole. Such a design can increase the structural strength of the ball socket. The cladding design of the plastic ball socket and other components can also improve the durability and impact resistance of the ball socket. Whether it is a receiving groove or a pin hole, these designs are to ensure that the ball socket of the support rod of the back door of a vehicle can work stably and reliably, and is convenient for maintenance and replacement. It can be understood that, in specific implementation, the specific structure of the ball socket part 1 can still be adaptively adjusted according to the use requirements.

[0055] Continuing to combine Figure 1 and Figure 2 The main body part 2 in the embodiment is in the shape of a column as a whole, and a wire harness through hole is arranged at the end of the main body part 2 towards the ball socket part 1 and is in communication with the receiving cavity 200. A plurality of connection grooves 206 are arranged at intervals on the outer periphery of the main body part 2, and the end of the main body part 2 with the connection grooves 206 can extend into the sleeve of the support rod structure, and the connection grooves 206 and the inner wall of the sleeve are formed in cooperation by riveting, so as to realize the fixed connection between the ball socket structure and the sleeve.

[0056] The ball socket part 1 and the main body part 2 in the embodiment are integrally formed, which is beneficial to ensure the connection strength of the two, the assembly and processing efficiency, and the use performance of the support rod ball socket structure. The integrally formed scheme of the ball socket part 1 and the main body part 2 in the embodiment can cancel the soft pad support on the traditional support rod ball socket structure, which is beneficial to improve the structural stability of the structure body, reduce one part, and improve the assembly efficiency.

[0057] As a preferred embodiment, the structure body is provided with a support seat 203 located in the accommodating cavity 200, and the support seat 203 is arranged along the circumference of the accommodating cavity 200. The clamping part includes a buckle 201 arranged in the accommodating cavity 200, and the buckle 201 clamps the PCB 3 on the support seat 203. In the embodiment, the support seat 203 is arranged in the accommodating cavity 200, which not only has the function of bearing the PCB 3, but also reduces the occupied space, and facilitates the arrangement of the wire harness in the accommodating cavity 200. The buckle 201 of the clamping part clamps the PCB 3 on the support seat 203, which not only facilitates the PCB to be clamped on the clamping seat by passing the buckle 201, but also avoids damage to the PCB during installation.

[0058] The PCB 3 in the embodiment, i.e., the printed circuit board, is an important component of the electric support rod system. The PCB 3 provides mechanical support for the fixation and assembly of electronic components in the electric support rod, and also realizes the wiring and electrical connection between these components. Specifically, the PCB 3 plays a key role in signal transmission, energy supply, performance optimization, and reliability improvement in the electric support rod.

[0059] Among them, the circuit on the PCB 3 ensures the signal transmission between the internal motor, sensor and other components of the electric support rod, so that the whole system can accurately and quickly respond to the control instruction. The circuit on the PCB 3 is also responsible for providing the required power for the electric support rod to ensure its normal work. Through precise circuit layout and matching electronic component selection, the PCB 3 can improve the energy efficiency of the electric support rod, reduce energy loss and heat generation, and thus optimize its performance. The PCB 3 also has good electromagnetic interference (EMI) shielding and shock resistance, which can ensure the stable operation of the electric support rod in harsh environmental conditions, and is beneficial to the reliability and durability of the whole vehicle back door opening and closing system.

[0060] In addition, the PCB 3 on the vehicle back door support rod also integrates intelligent control functions such as back door soft stop and intelligent anti-pinch, making the whole system more humanized and safe. In general, the PCB 3 on the back door support rod is a key component of the electric support rod system, which ensures the normal operation and performance optimization of the electric support rod, and also improves the safety and reliability of the whole vehicle back door opening and closing system.

[0061] Specifically, as shown in Figures 4 to 6 The mounting surface is annular and is arranged along the circumference of the accommodating cavity 200. The support seat 203 is arranged on the mounting surface, and the clamping portion is arranged on the mounting surface and used for clamping the PCB 3 on the support seat 203. Preferably, the clamping portion is two clamping portions arranged oppositely on the support surface. The support seat 203 is provided with a notch for avoiding the clamping portion, and the PCB 3 is provided with a clamping groove 302 for clamping the clamping portion. The cooperation of the two clamping portions and the corresponding clamping groove 302 facilitates the clamping firmness of the PCB 3. Of course, the number of clamping portions can be increased or decreased according to the use requirements during specific implementation. At this time, the position and number of the clamping groove 302 are consistent with the clamping portion.

[0062] As an example of the structure of the clamping portion in this embodiment, as shown in Figure 7 and Figure 8 The clasp 201 includes a connecting arm 2011 extending towards the opening and a clamping head 2012 arranged at the free end of the connecting arm 2011, and the clamping head 2012 is arranged towards the middle of the accommodating cavity 200. At the same time, the connecting arm 2011 is arranged spaced apart from the inner circumferential wall of the accommodating cavity 200, so that the clasp 201 has good elasticity and provides space for deformation of the clasp 201 during use, thereby facilitating the PCB 3 to pass over the clasp 201 and be clamped on the clamping seat, and also avoiding damage to the PCB.

[0063] In order to guide the PCB 3 to smoothly pass over the clamping head 2012, the clamping head 2012 is provided with an inclined guide surface. During the installation of the PCB 3 in the accommodating cavity 200, the two clamping heads 2012 are pushed by the contact between the PCB 3 and the guide surface, so that the connecting arm 2011 drives the clamping head 2012 to flip outward, and then the PCB 3 passes over the two clamping heads 2012. The connecting arm 2011 can drive the clamping head 2012 to reset after the PCB 3 passes over the clamping head 2012, and the clamping head 2012 is clamped on the side of the PCB 3 facing the opening. The entire installation process of the PCB 3 is simple and easy to operate. By arranging the clamping head 2012 on the side facing the opening, it is also convenient to observe the assembly of the PCB 3, and easy to install and maintain the PCB 3.

[0064] In this embodiment, the cooperation of the support seat 203 and the clamping head 2012 can limit the axial movement of the PCB 3 along the main body portion 2, thereby facilitating the use stability of the PCB 3. In order to further ensure the use effect of the clamping portion, in this embodiment, as shown in Figure 4As shown, the inner peripheral wall of the main body 2 is provided with a protruding portion 204 corresponding to the snap-fit ​​portion protruding into the receiving cavity 200, and the snap-fit ​​portion is specifically disposed on the protruding portion 204. This arrangement helps to increase the thickness of the bottom of the snap-fit ​​portion, thereby improving the structural strength of the snap-fit ​​portion and extending its service life. At the same time, the protruding portion 204 also increases the contact area between the support base 203 and the mounting surface, thus improving the performance of the support base 203.

[0065] It is understood that, in addition to the above-mentioned connecting arm 2011 and clip head 2012, the structure of the snap-fit ​​part in this embodiment can also adopt other snap-fit ​​structures that facilitate snapping the PCB board 3 onto the support base 203, as long as the usage requirements are met.

[0066] In this embodiment, the mounting base 5 serves as the mounting carrier for the connector 501. It not only facilitates the installation and positioning of the connector 501 but also ensures the insertion effect and stability of the connector 501 with the PIN pins of the driving unit. To ensure the installation effect of the connector 501, such as... Figure 3 As shown, the mounting base 5 is specifically disposed on the support base 203 and is elongated to facilitate the installation of the connector 501. The outer peripheral wall of the mounting base 5 abuts against the inner peripheral wall of the main body 2, which further improves the stability of the mounting base 5 during use.

[0067] As a preferred implementation method, such as Figure 7 , Figure 8 , Figure 10 and Figure 11 As shown, the mounting base 5 has a mounting groove 500 and a locking block 502 located at the opening of the mounting groove 500. The opening of the mounting groove 500 is in the same direction as the opening, and the connector 501 is engaged in the mounting groove 500 by the locking block 502. Here, the opening of the mounting groove 500 on the mounting base 5 is in the same direction as the opening, which facilitates the installation convenience and visibility of the connector 501 in the mounting groove 500. The locking block 502 engages the connector 501 in the mounting groove 500, which can improve the installation stability of the connector 501. The structure is simple and does not affect the connection between the PIN and the connector 501. It can also avoid the risk that the PIN of the drive unit is not easy to align with the connector 501 due to the unstable limit of the power connector 501.

[0068] Specifically, the mounting groove 500 is arranged through the mounting seat 5, and the avoiding hole for avoiding the bottom of the connector 501 is arranged on the support seat 203. It can be understood that the connector 501 in the embodiment can adopt the structure in the prior art, which is a block-shaped first part, and a second part connected with the first part and extending downward in a columnar shape, the second part is arranged through the avoiding hole, and the first part is used for being connected with the PIN pin on the driving part. And the cross-sectional area of the first part is larger than that of the second part.

[0069] Specifically, the driving part in the embodiment can be a motor, and the PIN pin of the motor is connected with the corresponding connector 501 to realize the electrical connection of the two. When the motor receives the instruction of the controller module, it will start to rotate forward or reverse, and increase the torque through the reduction box, so as to drive the screw rod to rotate. In the process of relative movement between the screw rod and the nut, the compression of the spring helps to push the support rod to elongate or shorten. The Hall sensor will feedback signal to the controller to ensure the accurate opening and closing position of the support rod.

[0070] As shown in Figure 10 The mounting groove 500 has an upper half for restraining the first part, and a lower half in communication with the upper half for the second part to pass through. The clamping blocks 502 are arranged on the left and right sides of the upper half respectively, so as to ensure the clamping stability of the connector 501 through the cooperation of the two clamping blocks 502. Of course, during specific implementation, the number and position of the clamping blocks 502 can also be adjusted according to the use requirement.

[0071] In order to facilitate the arrangement of the clamping blocks 502, the top of the left and right sides of the upper half of the mounting groove 500 is respectively provided with a notch, and the clamping blocks 502 are arranged in the notches respectively, and have an extension arm 5021 extending along the length direction of the notch, and a protrusion 5022 arranged at the top end of the extension arm 5021. In the clamping state, the first part of the connector 501 is limited between the protrusion 5022 and the bottom surface of the upper half, so as to limit the movement of the connector 501 along the axial direction of the main body part 2, and further facilitate to ensure the installation stability of the connector 501.

[0072] In the embodiment, the top of the protrusion 5022 is also provided with an inclined guide surface. When the connector 501 is installed along the axial direction of the main body part 2, the first part and the guide surface are abutted, so that each extension arm 5021 is folded outward, so that the first part passes through the two protrusions 5022. After the connector 501 is installed in place, the protrusions 5022 are reset under the driving of the extension arm 5021, so that the protrusions 5022 are clamped on the side of the connector 501 facing the opening.

[0073] In addition, the mounting seat 5 is provided with a through hole 503 penetrating along the length direction on the side facing the middle part of the main body part 2, and the through hole 503 is beneficial to check the installation state of the connector 501, and the through hole 503 is simple in structure and easy to process and form, and has good use effect. It can be understood that the through hole 503 can not be provided according to the use requirement in the embodiment.

[0074] In addition, in the embodiment, the structure of the clamping block 502 can also adopt other clamping structures for clamping the connector 501 on the mounting seat 5, as long as the use requirement is met.

[0075] As a preferred embodiment, the PCB board 3 is provided with a limiting groove 303, the mounting seat 5 is inserted into the limiting groove 303, and the mounting seat 5 abuts against the PCB board 3 and can limit the rotation of the PCB board 3 relative to the structure body. In the embodiment, the mounting seat 5 is inserted into the limiting groove 303 on the PCB board 3 and limits the rotation of the PCB board 3 relative to the structure body, improves the assembly stability of the PCB board 3, and has simple structure, and the limiting effect can be achieved by the mounting seat 5, the space in the accommodating cavity 200 can be saved by separately arranging the limiting structure, and the limiting groove 303 is simple in structure and easy to process and form on the PCB board 3.

[0076] As shown in Figure 6 and Figure 9 , the limiting groove 303 of the embodiment is three limiting grooves 303 arranged at intervals along the circumference of the PCB board 3, and two limiting grooves 303 are arranged corresponding to the mounting seat 5 to pass through the corresponding mounting seat 5. Specifically, the shape of the limiting groove 303 is matched with the shape of the mounting seat 5 to have good limiting effect. In order to further improve the use effect of the PCB board 3, the inner circumferential wall of the main body part 2 is further provided with a limiting protrusion 202 inwardly protruding corresponding to the last limiting groove 303. At this time, the two mounting seats 5 and the limiting protrusion 202 are arranged in a triangular shape, and the triangular shape has good stability, which is beneficial to improve the stability of the limiting effect and the stability of the PCB board 3 in the assembly state.

[0077] The limiting protrusion 202 is simple in structure, easy to process and form, and has good limiting effect. Of course, whether to arrange the limiting protrusion 202 and the position and number of the limiting protrusion 202 can be determined according to the use requirement. At this time, the number of the limiting groove 303 is equal to the sum of the mounting seat 5 and the limiting protrusion 202, and the position and specification of the limiting groove 303 are matched with the position and cross-sectional shape of the mounting seat 5 and the limiting protrusion 202.

[0078] In order to further improve the installation convenience of the PCB board 3, as shown inFigure 2 As shown in the middle, the mounting seat 5 extends to the opening in this embodiment, and the mounting seat 5 cooperates with the limiting groove 303 to guide the PCB board 3 to be inserted into the accommodating cavity 200. In addition, the limiting protrusion 202 also extends to the opening to cooperate with the two mounting seats 5 to guide the mounting of the PCB board 3, which can not only improve the mounting efficiency and mounting accuracy of the PCB board 3, but also improve the cooperation effect of the Hall sensor on the PCB board 3 and the Hall sensor bracket on the motor. In addition, compared with the traditional scheme of separately arranging a guide structure, the space in the accommodating cavity 200 can be saved, thereby improving the space utilization rate in the accommodating cavity 200.

[0079] In this embodiment, the connector 501 can also be shortened, that is, the top surface of the connector 501 is lower than the top of the mounting groove 500 in the mounted state. In this embodiment, the power connector 501 is shortened, which not only saves costs, but also increases the assembly stability and limiting accuracy of the power connector 501.

[0080] It should be noted that the Hall sensor on the support rod plays an important role in the electric support rod system. The Hall sensor is an electronic component based on the Hall effect, with high sensitivity, high precision, strong anti-interference ability and stable and reliable operation characteristics. In the application of the support rod of the vehicle back door, the Hall sensor mainly plays the role of sensing the change of the magnetic field and converting it into an electric signal.

[0081] Specifically, when the motor inside the support rod works, the rotation of the shaft will drive the magnetic ring to rotate, thereby generating a change in the magnetic field. The Hall sensor can sense this change in the magnetic field and convert it into a corresponding pulse signal. These pulse signals are then sent to the tail door controller for precise control of the extension and retraction of the support rod.

[0082] Another important application of the Hall sensor is to realize the anti-pinch function. When the vehicle back door encounters an obstacle during movement, the movement speed of the tail door will decrease, and correspondingly the rotation speed of the electric support rod motor will also decrease. The Hall sensor can sense this change in speed in real time and reflect this change by changing the pulse width of the pulse signal sent to the tail door controller. The control unit can trigger the anti-pinch program by judging whether the pulse waveform is abnormal or exceeds the threshold value, so as to realize the reverse movement or stop of the tail door, thereby avoiding injury to the obstacle.

[0083] In addition, the Hall sensor can also be used to sense the opening and closing state of the tailgate inside and outside the vehicle, as well as the real-time position of the tailgate. By precisely controlling the rotation of the motor, the Hall sensor can achieve precise opening and closing of the tailgate, improving the comfort and safety of vehicle driving. The Hall sensor bracket, as a fixed component of the Hall sensor, is usually made of durable materials that can withstand vibrations and impacts during vehicle operation. At the same time, the design of the bracket also needs to consider the convenience of installation and the positioning accuracy of the sensor to ensure that the sensor can accurately measure the required parameters.

[0084] In summary, the Hall sensor on the vehicle rear door support rod plays a key role in the electric support rod system, which realizes the smooth, precise and safe opening and closing of the tailgate by sensing the change of magnetic field and controlling the rotation of the motor.

[0085] The Hall sensor and PCB board 3 in this embodiment have a close relationship, and they work together to realize the extension and retraction of the support rod and the opening and closing of the tailgate. By accurately measuring the change of the magnetic field, the Hall sensor can ensure that the support rod moves smoothly and accurately to the designated position, thereby realizing the opening and closing of the tailgate.

[0086] The PCB board 3 (printed circuit board) serves as the carrier of electronic components, responsible for connecting the Hall sensor, motor drive circuit, control logic and other parts to form a complete electronic system. The circuit layout and component selection on the PCB board 3 are crucial to ensuring the performance and reliability of the entire system. It not only provides stable electrical connections, but also considers electromagnetic compatibility, anti-interference ability and other factors to ensure that the Hall sensor can work accurately and reliably.

[0087] Therefore, the Hall sensor and PCB board 3 play important roles in the vehicle rear door support rod and depend on each other. The Hall sensor is responsible for sensing and converting signals, while the PCB board 3 provides support for electronic components and circuit connections. Their collaborative work ensures the precise extension and retraction of the support rod and the smooth opening and closing of the tailgate, improving the overall performance and reliability of the vehicle rear door system. It should be noted that the specific design and configuration may vary depending on different car brands and models.

[0088] As a preferred embodiment, as Figure 4As shown in the structure of the body is provided with a partition 205, 205 is provided on the PCB board 3 back to the side of the opening, the PCB board 3 is provided with the wire harness connection part, wire harness connection part and connector 501 are respectively provided on the two opposite sides of the partition 205. In this embodiment, by setting the partition 205 on the structure of the body is located on the side of the opening of the PCB board 3, and the wire harness connection part and connector 501 are respectively provided on the two opposite sides of the partition 205, which is conducive to avoid the original mechanism due to the signal wire harness and connector 501 close distance, and the risk of short circuit caused by installation together.

[0089] Specific structure, the partition 205 is a partition plate, the two ends of the partition 205 are connected with the convex part 204 respectively, the structure of the partition 205 is simple and easy to arrange and implement. Due to the setting of the partition 205, the accommodating cavity 200 is divided into two parts. The wire harness connection part in this embodiment is specifically a plurality of wire harness solder holes 301 arranged on the PCB board 3 and spaced along the circumference of the PCB board 3, and the plurality of wire harness solder holes 301 are located on the same side of the partition 205, and the two mounting seats 5 are located on the other side of the partition 205. Figure 9 As shown in the wire harness solder hole 301 is six, of course, the number of wire harness solder hole 301 can also be increased or decreased according to the use demand in specific implementation, and is not limited to six.

[0090] In this embodiment, the signal wire harness connected with the plurality of wire harness solder holes on the PCB board 3 is located on one side of the partition 205, and the two connectors 501 are located on the other side of the partition 205. The signal wire harness and the connector 501 are isolated by the partition 205, which is conducive to avoid the problem that the terminals of the signal wire harness and the connector 501 are easily short-circuited due to extrusion in the support rod ball socket structure of the prior art, thereby improving the safety of the support rod ball socket structure in use.

[0091] In this embodiment, only one partition 205 is provided to realize the problem that the terminals of the signal wire harness and the connector 501 are easily short-circuited, which has the advantages of easy arrangement and implementation compared with the scheme of providing a partition structure outside the signal wire harness and the connector 501, and the space occupation of the accommodating cavity 200 is less.

[0092] As a preferred embodiment, in this embodiment, as shown in Figure 1 and Figure 11 As shown in the structure of the body is provided with an opening, one end of the opening is provided with a buffer pad 4, the buffer pad 4 is arranged around the opening and is connected with the driving part. The buffer pad 4 is arranged around the opening on the structure of the body and is connected with the driving part, which reduces the vibration of the driving part output to the ball socket structure, and can improve the cooperation effect of the Hall sensor on the PCB board 3 and the Hall sensor bracket on the driving part.

[0093] In detail, as shown in Figure 11 The cushion 4 is annular and extends from the main body 2. The cushion 4 can be formed on the structural body by vulcanization, which can eliminate the cushion support in the traditional support rod ball socket structure, and the end of the structural body is encapsulated, thereby reducing the vibration from the motor to the ball socket.

[0094] To further improve the use effect of the cushion 4, a plurality of grooves 401 are formed on the outer periphery of the cushion 4 and arranged at intervals. The grooves 401 penetrate the end of the cushion 4 facing the structural body, and the width of the grooves 401 decreases away from the structural body. The grooves 401 can have the effect of a texture, which can improve the buffering effect of the vibration force and reduce the production cost. In addition, a plurality of protrusions 402 are formed on the end of the cushion 4 facing the structural body and arranged at intervals along the circumferential direction of the cushion 4. The plurality of protrusions 402 can further improve the connection firmness between the cushion 4 and the structural body.

[0095] It can be understood that whether the grooves 401 and the protrusions 402 are arranged on the cushion 4 in the embodiment, and the number, position, and specifications of the grooves 401 and the protrusions 402 can be determined according to the use requirements, and are not limited to the scheme shown in Figure 12 .

[0096] The support rod ball socket structure in the embodiment provides a new assembly method of the PCB 3 and the power connector 501, which can avoid the problems in the previous design, such as the assembly of the PCB 3 being skewed, the signal wire bundle being extruded and short-circuited with the metal terminal of the power connector 501, and the motor PIN pin being misaligned with the power connector 501. In addition, the original clamping assembly of the cushion support and the ball socket assembly is changed to a structural body, which can reduce one component and achieve the effect of cost reduction.

[0097] In addition, the support seat 203, the mounting seat 5, and the clamping part in the accommodating cavity 200 cooperate with each other and are used with the PCB 3, thereby providing a convenient and stable mounting method of the PCB 3, which can avoid the instability of the original mechanism. After the assembly of the PCB 3, the PCB 3 is directly visible, which can avoid the risk of undetectable caused by the invisibility of the PCB 3 after the assembly of the original mechanism, and achieve the effect of detectable after the assembly.

[0098] In the embodiment, the mounting groove 500 on the mounting seat 5 is used with the connector 501, thereby providing a convenient and stable mounting method of the power connector 501, avoiding the risk of misalignment of the motor PIN pin with the power connector 501 caused by the unstable limiting of the power connector 501 in the original mechanism, and improving the limiting stability of the power connector 501.

[0099] In addition, the partition 205 is used in combination with the mounting groove 500 on the mounting seat 5 and the PCB board 3, all signal wire harnesses are welded on the same side of the PCB board 3, and are fixed on the other side through the connector 501, and the signal wire harnesses are completely isolated from the power connector 501 by using the partition 205, thereby avoiding the risk of extrusion short circuit caused by the fact that the signal wire harnesses and the power connector 501 are relatively close and are installed together. The support rod ball socket structure in the embodiment discards the traditional ball socket structure, simplifies the assembly process, is convenient for visualization, is convenient for arrangement and implementation, and thus has good practicability.

[0100] In addition, the embodiment also relates to a support rod assembly provided with the support rod ball socket structure. Taking the case that the support rod assembly is arranged between the back door and the vehicle body of a vehicle as an example for description. Of course, the support rod assembly can also be applied to other products to meet the use requirements in different situations.

[0101] In the embodiment, the telescoping principle of the support rod assembly is mainly based on the working principle of the electric support rod, and the optimal design of the support rod is achieved through kinematics calculation. In this process, the optimal solution is achieved by adjusting variables such as the rotation distance of the motor, the gear box speed ratio, the lead screw pitch, and the spring force value.

[0102] Specifically, when the motor receives a forward rotation signal, the electric support rod will be stretched upward, and when the motor receives a reverse rotation signal, the electric support rod will be retracted downward. These forward and reverse rotation signals are usually realized through a switch or a remote controller.

[0103] The support rod assembly in the embodiment is mainly composed of a ball socket, a Hall sensor, a motor, a reduction box, a screw rod, a nut, a spring and the like, which has a structure similar to that of a traditional electric pile support rod. The ball socket includes an upper ball socket and a lower ball socket, and the ball socket in the embodiment is specifically the lower ball socket.

[0104] Specifically, after receiving the instruction of the controller module, the motor will rotate forward or reverse. After being reduced and increased in torque by the reduction box, the screw rod is driven to rotate. The relative movement between the screw rod and the nut is generated, and the support rod is stretched or shortened under the assistance of the compressed spring. The Hall sensor at the tail of the motor feeds back its signal to the controller to control the opening position and the closing position of the support rod.

[0105] In addition, the telescoping of the support rod assembly also involves some mechanisms, such as an arm support telescoping mechanism and a support leg retracting mechanism. These mechanisms complete complex actions such as rotation and swinging through various levers, rocker arms or connecting rods. By changing the length of the lever arm, the stroke can be increased or decreased. The telescoping principle of the support rod assembly is a complex and delicate process, which involves the cooperative work of multiple components and mechanisms to achieve smooth and accurate telescoping actions.

[0106] During the opening process of the vehicle's back door, each component of the strut plays a crucial role in coordinating the action of opening the back door. When the opening signal is received from the back door controller, the motor starts to rotate forward. The motor is the power source of the strut action, providing the necessary torque to drive the extension and retraction of the strut.

[0107] The output of the motor is decelerated by the reduction gearbox, increasing the torque. The function of the reduction gearbox is to convert the high speed and low torque of the motor into low speed and high torque, to adapt to the mechanical properties required for the extension and retraction of the strut. The output of the reduction gearbox drives the rotation of the screw rod. The relative movement between the screw rod and the nut is the direct cause of the extension and retraction of the strut. With the rotation of the screw rod, the nut moves on the screw rod, thus pushing the strut to extend.

[0108] During the extension and retraction of the strut, the spring provides assistance. When the strut extends, the spring is compressed, providing additional support. When the strut retracts, the spring releases energy, helping the strut to quickly return to its original position. The Hall sensor monitors the rotation state of the motor in real time and feeds back the signal to the back door controller. Through the feedback of the Hall sensor, the controller can accurately control the opening position and speed of the strut, ensuring the smooth opening of the back door. The ball socket and connecting piece ensure the stable connection between the strut and the back door. They allow the strut to maintain a certain flexibility during extension and retraction, while ensuring the efficiency of force transmission.

[0109] In summary, the components of the vehicle's back door strut work together during the opening process of the back door. Through the drive of the motor, the deceleration of the reduction gearbox, the relative movement of the screw rod and the nut, the assistance of the spring, and the feedback control of the Hall sensor, the strut achieves smooth extension and retraction, thus smoothly opening the back door.

[0110] In detail, in use, the strut assembly in the embodiment, when the car tail door is opened, the motor is powered on, the output shaft of the motor rotates and drives the screw rod to rotate through the reduction gearbox, the nut on the screw rod moves linearly, the pull rod fixedly connected to the nut moves and pushes the upper ball socket connected to the inner sleeve, the movement of the upper ball socket causes the inner sleeve to move, thus causing the inner sleeve to extend relative to the outer sleeve, making the sleeve as a whole lengthen and lift the back door.

[0111] In the process of lifting or closing the back door, the output shaft rotates the output element on it, and the magnetic induction element on the PCB 3 senses the number of rotations of the output element to realize the number of rotations of the output shaft. When the back door is fully opened, the output shaft rotates to a certain number of rotations, and the PCB 3 controls the motor to lose power, so that the tail door support rod is in a hovering state. When the support rod is in a hovering state, the output shaft of the driving device will produce a rotating motion trend due to the gravity of the automobile tail door, and the output shaft of the driving device is subjected to damping force due to the magnetic attraction between the output element and the resistance element, so that the output shaft of the driving device cannot rotate to ensure that the support rod is stably in a hovering state, and the sleeve cannot be retracted under the gravity of the automobile tail door.

[0112] When manually opening or closing the back door, the hand will give the back door a downward force, so that the inner sleeve is retracted into the outer sleeve. At this time, the pull rod is pushed by the ball socket, the pull rod pushes the nut, and the lead screw threaded with the nut rotates. The rotation of the lead screw is transmitted to the output shaft to rotate the output shaft, and the magnetic attraction between the output element and the resistance element will dampen the output shaft of the driving device, thereby reducing the speed of the output shaft of the driving device, thereby preventing the motor from being damaged due to excessive force when closing the door, and preventing the gear of the speed reducer from being damaged.

[0113] The support rod assembly described in the embodiment is provided with the support rod ball socket structure, which is beneficial to improve the use performance of the support rod assembly and the stability of the vehicle back door when opening and closing.

[0114] In addition, the vehicle in the embodiment is provided with the support rod assembly described above. The support rod assembly is specifically arranged between the back door and the vehicle body to facilitate the opening or closing of the back door.

[0115] The vehicle in the embodiment is provided with the support rod assembly, which is beneficial to improve the convenience and stability of the opening or closing of the vehicle back door.

[0116] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A strut ball-and-socket structure, characterized in that: It includes a structural body having a receiving cavity (200) and a PCB board (3) disposed in the receiving cavity (200); The structure body is provided with an opening for the PCB board (3) to enter the receiving cavity (200) and a snap-fit ​​part located in the receiving cavity (200). The snap-fit ​​part is snapped onto the side of the PCB board (3) facing the opening and snaps the PCB board (3) into the receiving cavity (200).

2. The strut ball-and-socket structure according to claim 1, characterized in that: The structure body includes a main body (2) and a ball-and-socket part (1), the receiving cavity (200) is provided on the main body (2), and the ball-and-socket part (1) is provided at the end of the main body (2) away from the opening; The cavity (200) is provided with a mounting base (5) and a connector (501) is provided on the mounting base (5). The connector (501) is used to connect to the drive unit.

3. The strut ball-and-socket structure according to claim 2, characterized in that: The mounting base (5) is provided with a mounting groove (500) and a locking block (502) located at the opening of the mounting groove (500); The groove of the mounting slot (500) is in the same direction as the opening, and the connector (501) is snapped into the mounting slot (500) by the clip (502).

4. The strut ball-and-socket structure according to claim 2, characterized in that: The PCB board (3) is provided with a limiting groove (303); The mounting base (5) is inserted into the limiting groove (303), and the mounting base (5) abuts against the PCB board (3) and can restrict the rotation of the PCB board (3) relative to the structure body.

5. The strut ball-and-socket structure according to claim 4, characterized in that: The mounting base (5) extends to the opening, and the mounting base (5) cooperates with the limiting groove (303) to guide the PCB board (3) into the receiving cavity (200).

6. The strut ball-and-socket structure according to claim 2, characterized in that: The structure body is provided with a partition (205), which is located on the side of the PCB board (3) opposite to the opening; The PCB board (3) is provided with a wire harness connection part, and the wire harness connection part and the connector (501) are respectively located on two opposite sides of the separator (205).

7. The strut ball-and-socket structure according to claim 1, characterized in that: The structure body has a buffer pad (4) at one end with the opening. The buffer pad (4) is arranged around the opening and is used to connect with the drive unit.

8. The strut ball-and-socket structure according to any one of claims 1 to 7, characterized in that: The structure body is provided with a support seat (203) located in the receiving cavity (200), and the support seat (203) is arranged along the circumference of the receiving cavity (200); The snap-fit ​​part includes a snap fastener (201) disposed in the receiving cavity (200), the snap fastener (201) snaps the PCB board (3) onto the support base (203).

9. A strut assembly, characterized in that: The strut assembly is provided with the strut ball-and-socket structure as described in any one of claims 1 to 8.

10. A vehicle, characterized in that: The vehicle is equipped with the strut assembly as described in claim 9.

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