A sliding door positioner and a vehicle

Abstract

The application discloses a sliding door positioner and a car, and relates to the technical field of car doors.The device comprises a positioning seat arranged on a car body, wherein a column hole is arranged on the positioning seat; a positioning pin arranged on a sliding door, wherein the positioning pin comprises a guide part and a matching part, the surface of the matching part is at least partially arc-shaped, the guide part is arranged on the side of the matching part away from the sliding door, and the guide part is used for guiding the matching part to be inserted into the column hole of the positioning seat, so that the matching part is limited in cooperation with the column hole. The application sets the arc-shaped matching part on the positioning pin, so that the adaptability of the sliding door positioner to the size deviation of the car body is improved, and the state of the positioning pin being blocked or interfered is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile door, in particular to a sliding door positioner and an automobile. BACKGROUND

[0002] With the vigorous development of modern automobile industry, in order to improve the competitiveness of the vehicle type, the employees have higher and higher requirements for the door NHV performance during the driving of the vehicle. The door type is generally divided into rotating door and sliding door. Unlike the single-axis hinge with low degree of freedom connecting the rotating door and the vehicle body, the connection between the sliding door and the vehicle body is through the roller-rail connection with high degree of freedom. This connection is more unstable and insufficient than the single-axis hinge, which is also a problem that all sliding doors of the vehicle will face. In order to avoid the sliding door from making abnormal noise during the driving of the vehicle on various road conditions, a limiting and buffering mechanism is generally arranged in front of the sliding door and connected with the vehicle body (this mechanism is named as "positioner" hereinafter).

[0003] The positioner in the related art generally includes a positioning concave block on the vehicle body and a positioning convex block on the sliding door. When the sliding door is moving to close, the positioning convex block extends into the positioning concave block and is in contact with the positioning concave block to achieve the purpose of buffering and positioning. However, in the actual work of the sliding door, the employees find that the bumping and vibration during the normal driving of the vehicle can easily cause a small size deviation between the positioning convex block and the positioning concave block. However, the size tolerance of such positioner is poor, and it is often difficult to adapt to the change of the above-mentioned size deviation. For example, the size deviation of the positioning convex block and the positioning concave block in the X direction of the vehicle body will cause the gap cooperation or the over-tight cooperation between them. The gap cooperation will lead to the weakening or even failure of the limiting function, and the over-tight cooperation will lead to large closing force and heavy wear of the positioner. Similarly, the size deviation in the Y direction of the vehicle body will cause the positioning convex block and the positioning concave block to be in the state of force or interference, and in severe cases, it will even cause them to be unable to normally match, affecting the normal closing of the sliding door. SUMMARY

[0004] In view of the poor adaptability of the sliding door positioner in the prior art to the size deviation, which causes the failure of the positioning effect and the abnormal noise of the door closing, the present application provides a sliding door positioner, which comprises:

[0005] A positioning seat is arranged on the vehicle body, and a column hole is arranged on the positioning seat;

[0006] A positioning pin is arranged on the sliding door, the positioning pin comprises a guide portion and a cooperation portion, at least part of the surface of the cooperation portion is in arc shape, the guide portion is arranged on the side of the cooperation portion away from the sliding door, and the guide portion is used for guiding the cooperation portion to be inserted into the column hole of the positioning seat, so that the cooperation portion cooperates with the column hole to limit.

[0007] In some embodiments, the mating part has a spherical structure.

[0008] In some embodiments, the mating part has a platform-shaped structure that is smaller at both ends and larger in the middle in the front-rear direction of the vehicle body.

[0009] In some embodiments, the positioning pin has an elastic portion on the side away from the guide portion, and the elastic portion is connected to the sliding door.

[0010] In some embodiments, the elastic portion includes:

[0011] The box body has an internal cavity, and the surface of the box body has a channel for the positioning pin to pass through.

[0012] A disc spring is assembled inside the cavity of the box body, and the disc spring is connected to the positioning pin.

[0013] In some embodiments, the ratio of the flattening deformation of the disc spring to the thickness of the disc spring is 1.4.

[0014] In some embodiments, it also includes:

[0015] A first mounting plate is assembled on the vehicle body, and the first mounting plate is provided with through holes for mounting the positioning seat;

[0016] A second mounting plate is assembled on the sliding door, and the second mounting plate has through holes for mounting the box body.

[0017] In some embodiments, the guide portion of the locating pin is conical.

[0018] In some embodiments, the surface friction coefficient of the positioning seat is below 0.125.

[0019] On the other hand, this application provides an automobile that includes a sliding door positioner as described in any of the preceding claims.

[0020] Compared with related technologies, this invention, by providing a mating part with an arc-shaped surface on the locating pin, ensures that when the locator experiences an X-axis dimensional deviation (the locating pin is inserted too deeply or too shallowly into the locating seat), the portion where the mating part makes a limiting fit with the locating seat is always the top of the arc-shaped surface. Therefore, regardless of whether the locating pin is inserted too deeply or too shallowly, the locating pin and the locating seat will not be too tight or have a clearance fit. Furthermore, when the locating pin is as... Figure 3 As shown, even with rotational dimensional deviations in the Z-axis, the mating surface of the mating part is arc-shaped, so the mating relationship between the locating pin and the locating seat will not change even if the mating part rotates. Therefore, the sliding door locator in this invention has strong adaptability to vehicle body dimensional deviations, avoiding locating pin jamming or interference. Attached Figure Description

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description only constitute some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0022] Figure 1 A cross-sectional view of the first embodiment of the sliding door positioner in the present application;

[0023] Figure 2 An exploded view of the first embodiment of the sliding door positioner in the present application;

[0024] Figure 3 A cross-sectional view of the second embodiment of the sliding door positioner in the present application;

[0025] Figure 4 A partial view of B in the present application; Figure 3

[0026] Figure 5 A compression characteristic curve of the disc spring in the present application.

[0027] In the figure: 1, positioning seat; 11, column hole; 2, positioning pin; 21, guide part; 22, matching part; 3, vehicle body; 4, sliding door; 5, elastic part; 51, box body; 511, channel; 52, disc spring; 6, first mounting plate; 7, second mounting plate; 8, rubber block. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0029] The embodiments of the present application will be further described in detail below in combination with the drawings. In the related art, the size tolerance of the sliding door positioner is poor, and it is often difficult to adapt to the changes of the above-mentioned size deviation. For example, the size deviation of the positioning convex block and the positioning concave block in the front and rear direction of the vehicle body will cause clearance fit or tight fit between them. The clearance fit will lead to weakening or even failure of the limiting function, and the tight fit will lead to large door closing force and heavy wear of the positioner. Similarly, the size deviation of the vehicle body in the Y direction will cause the positioning convex block and the positioning concave block to be in a force holding or interference state, and in severe cases, it will even cause them to be unable to normally match, affecting the normal closing of the sliding door. It should be noted that, for example, Figure 1 ​As shown, the X direction of the present application refers to the front and rear direction of the vehicle body 3, and the Y direction refers to the right and left direction of the vehicle body 3.

[0030] In order to solve the above technical problems, the present application first provides a positioning seat 1 and a positioning pin 2, wherein, Figure 3 and Figure 4 As shown, a sliding door positioner is provided, which comprises a positioning seat 1 and a positioning pin 2; wherein,

[0031] The positioning seat 1 is arranged on the vehicle body 3, and the positioning seat 1 is provided with a column hole 11; the positioning pin 2 is arranged on the sliding door 4, and the positioning pin 2 comprises a guide portion 21 and a matching portion 22, at least part of the surface of the matching portion 22 is cylindrical, the guide portion 21 is arranged on the side of the matching portion 22 away from the sliding door 4, and the guide portion 21 is used to guide the matching portion 22 to be inserted into the column hole 11 of the positioning seat 1, so that the matching portion 22 is limited with the column hole 11.

[0032] It can be understood that the Y direction positioning in the present application adopts the cylindrical matching portion 22 for positioning. In the X direction, an independent rubber block 8 is used for limiting. In this way, the positioning pin 2 will not be gap matched or too tightly matched with the column hole 11 of the positioning seat 1 in the X direction, too deep or too shallow. However, the applicant found that the size deviation of the sliding door 4 relative to the vehicle body Z direction will be as Figure 3 As shown, the cylindrical matching portion 22 is in a state of being blocked and interfered, which causes the sliding door 4 to be unable to normally close.

[0033] Preferably, the above-mentioned column hole 11 can be selected as an oblong column hole. The oblong column hole is used to limit the positioning pin 2 entering the matching position in the X direction, and the up and down jumping of the positioning pin 2 in the Z direction (i.e. the height direction of the vehicle body 3) is not limited.

[0034] In order to solve the above two size deviation conditions at the same time, as Figure 1 and Figure 2 As shown, a specific embodiment of the positioner is provided, which comprises a positioning seat 1 and a positioning pin 2; wherein,

[0035] The positioning seat 1 is arranged on the vehicle body 3, and the positioning seat 1 is provided with a column hole 11. The positioning pin 2 is arranged on the sliding door 4, and the positioning pin 2 comprises a guide portion 21 and a matching portion 22, at least part of the surface of the matching portion 22 is arc-shaped, the guide portion 21 is arranged on the side of the matching portion 22 away from the sliding door 4, and the guide portion 21 is used to guide the matching portion 22 to be inserted into the column hole 11 of the positioning seat 1, so that the matching portion 22 is limited with the column hole 11.

[0036] It is worth mentioning that the fitting part 22 is at least partially arc-shaped, so that when the positioning pin 2 deviates in the X direction, the column hole 11 of the positioning seat 1 remains consistent in the X direction, so that the fitting part 22 of the positioning pin 2 is neither too tight nor too loose with the column hole 11. The arc-shaped surface of the fitting part 22 can slightly tilt when the fitting part 22 enters the column hole 11 due to the size deviation of the sliding door 4 rotating in the Z direction of the vehicle body, but the arc-shaped surface of the fitting part 22 will not affect the fitting size of the fitting part 22 with the column hole 11 even if it rotates.

[0037] Preferably, in order to better improve the size deviation adaptation performance of the fitting part 22, the fitting part 22 is in a spherical structure, and one end of the fitting part 22 in the X direction is connected to the guide part 21.

[0038] In other preferred embodiments, the fitting part 22 is in a table structure, and the fitting part 22 is larger in the middle than at both ends in the X direction of the vehicle body 3. That is, the cross-sectional area of the fitting part 22 at both ends in the X direction is smaller than the cross-sectional area of the fitting part 22 in the middle.

[0039] In some embodiments, as shown in Figure 2 In order to improve the integration of parts, reduce the arrangement space, and reduce the cost, the present application provides an elastic part 5 inside the positioner. Specifically, the positioning pin 2 is provided with an elastic part 5 on the side away from the guide part 21, and the elastic part is connected to the sliding door 4.

[0040] Further, the elastic part 5 includes a box body 51 and a disc spring 52, wherein

[0041] The box body 51 is provided with a cavity, and the surface of the box body 51 is provided with a hole 511 for the positioning pin 2 to pass through. The disc spring 52 is arranged in the cavity of the box body 51, and the disc spring 52 is connected to the positioning pin 2.

[0042] It is worth mentioning that the disc spring 52 is arranged in the elastic part 5 in the present application. The disc spring 52 has the characteristic that Figure 5 as shown in the figure, when it is compressed, there is a zero-stiffness interval (before and after the disc spring 52 is flattened), and the corresponding Figure 5 compression characteristic curve is close to the horizontal gentle section. To achieve this effect, the disc spring should be flattened when designing the theoretical fitting of the positioner (the theoretical position of the sliding door 4 and the vehicle body 3 when closed needs to be adjusted), and the up-down difference (generally ±1.5) corresponds to the compression characteristic curve of the disc spring Figure 5The smooth zone ΔH in the locator ensures that the output reaction force ΔF is very small within the tolerance range. This means that even when the body assembly precision fluctuates within the tolerance range, the change in the limiting force output by the locator is also small, preventing the sliding door from becoming unstable due to insufficient limiting force or the closing force from becoming excessive. To achieve this, this application provides a specific embodiment where the ratio of the flattening deformation of the disc spring 52 to the material thickness is 1.4. Specifically, the flattening deformation is determined based on the theoretical positions of the sliding door 4 and the body 3 when closed.

[0043] Understandably, for ease of installation, the sliding door positioner also includes:

[0044] A first mounting plate 6 is disposed on the vehicle body 3, and the first mounting plate 6 has a through hole for mounting the positioning seat 1. A second mounting plate 7 is disposed on the sliding door 4, and the second mounting plate 7 has a through hole for mounting the housing 51. It can be understood that the positioning seat 1 has a cylindrical structure so as to pass through the through hole of the first mounting plate 6.

[0045] Preferably, the guide portion 21 of the positioning pin 2 is conical and serves as a guide for entry. It can be understood that when the sliding door 4 moves closer to the vehicle body 3, the guide portion 21 first enters the pinhole 11 of the positioning seat 1 to assist the mating portion 22 in entering the positioning seat 1.

[0046] Furthermore, the surface friction coefficient of the guide portion 21 is below 0.125. Preferably, the guide portion 21 is made of PEEK with 10% PTFE added by weight. This material has an extremely smooth surface and self-lubricating properties, and is also very wear-resistant. The smoothness ensures that the positioning seat can more easily adapt to the positioning pin. At the same time, during the sliding door opening and closing process, the positioning pin 2 and the positioning seat 1 often slide back and forth. During the driving process, there is also mutual vibration and compression between the positioning pin 2 and the positioning seat 1, which places very high demands on the wear resistance of the positioning seat 1.

[0047] In some preferred embodiments, the applicant found that in the prior art, the main focus is on the X-direction buffering of the vehicle body 3, that is, the direction in which the sliding door moves towards the vehicle body. The guide block with a helical spring limit is relatively shaky, which means that the limiting force is greatly affected by the assembly tolerance. In addition, due to structural limitations, the limiting buffering can only be performed in a certain direction, resulting in poor stability of the sliding door and easy vibration and abnormal noise during driving. In other directions, there is almost no buffering or very little buffering. If the car bumps during driving, the sliding door will shift in the vertical direction or other directions, that is, it will move, causing abnormal noise between the sliding door and the vehicle body. After long-term use, the appearance gap and surface difference between the sliding door and the vehicle body will worsen.

[0048] Therefore, to solve the above-mentioned defects, in some embodiments, the elastic part 5 comprises a first ring-shaped part, a first elastic part and a second elastic part. The first ring-shaped part has a receiving space for cooperating with the positioning pin 2. The first elastic part is arranged on one side of the receiving space and is used to limit the continuous movement of the positioning pin 2 into the receiving space. The second elastic part is annularly arranged outside the first ring-shaped part.

[0049] Since the second elastic part is annularly arranged outside the first ring-shaped part, the second elastic part can absorb the vibration transmitted from the first ring-shaped part. Further, a second ring-shaped part is arranged on the outer surface of the first ring-shaped part. The second ring-shaped part is coaxially arranged with the first ring-shaped part, and the second elastic part is arranged inside the second ring-shaped part and the first ring-shaped part. In general, the second elastic part is attached between the second ring-shaped part and the first ring-shaped part. Therefore, under the force state, the kinetic energy is absorbed by the first elastic part and the second elastic part, so that the second ring-shaped part as a whole does not deviate. Therefore, when the vehicle is jolted, only the first ring-shaped part, the first elastic part and the second elastic part are displaced, and the surface abnormal sound is not generated. At the same time, the positioning pin 2 can be effectively prevented from moving.

[0050] On the other hand, the application also provides a vehicle, which comprises a sliding door positioner, the sliding door positioner comprising a positioning seat 1 and a positioning pin 2, wherein,

[0051] The positioning seat 1 is arranged on the vehicle body 3, and the positioning seat 1 is provided with a column hole 11. The positioning pin 2 is arranged on the sliding door 4, and the positioning pin 2 comprises a guide part 21 and a cooperating part 22. At least part of the surface of the cooperating part 22 is cylindrical. The guide part 21 is arranged on the side of the cooperating part 22 away from the sliding door 4, and the guide part 21 is used to guide the cooperating part 22 to be inserted into the column hole 11 of the positioning seat 1, so that the cooperating part 22 cooperates with the column hole 11 to limit the position.

[0052] It can be understood that in the application, the Y-direction positioning is positioned by the cylindrical cooperating part 22. In the X-direction, an independent rubber block 8 is used for limiting. In this way, the positioning pin 2 will not be loosely fitted or tightly fitted with the column hole 11 of the positioning seat 1 when it is too deep or too shallow in the X-direction. However, the applicant found that once the size deviation of the sliding door 4 relative to the vehicle body Z-direction rotation will be as Figure 3 shown, the cylindrical cooperating part 22 is in a state of tension and interference, which causes the sliding door 4 to be unable to normally close.

[0053] In order to solve the above-mentioned two size deviation conditions at the same time, as Figure 1 and Figure 2 shown, the application provides a specific embodiment of a positioner, which comprises a positioning seat 1 and a positioning pin 2, wherein,

[0054] A positioning seat 1 is mounted on the vehicle body 3, and the positioning seat 1 has a post hole 11. A positioning pin 2 is mounted on the sliding door 4, and the positioning pin 2 includes a guide part 21 and a mating part 22. At least part of the surface of the mating part 22 is arc-shaped. The guide part 21 is located on the side of the mating part 22 away from the sliding door 4, and the guide part 21 is used to guide the mating part 22 to be inserted into the post hole 11 of the positioning seat 1, so that the mating part 22 is engaged and limited by the post hole 11.

[0055] It is worth noting that at least part of the surface of the mating part 22 is arc-shaped. As a result, even if the locating pin 2 deviates in the X direction, since the cross-sectional area of ​​the column hole 11 of the locating seat 1 remains consistent in the X direction, the mating part 22 of the locating pin 2 will not be too tight or have a clearance fit with the column hole 11, regardless of whether it is too deep or too shallow. Furthermore, the arc-shaped surface of the mating part 22 ensures that even if the sliding door 4 rotates relative to the vehicle body in the Z direction, causing a slight tilt when the mating part 22 enters the column hole 11, the arc-shaped surface of the mating part 22 will not affect the mating dimensions of the mating part 22 with the column hole 11.

[0056] Preferably, in order to better improve the adaptability of the mating part 22 to dimensional deviations, the mating part 22 has a spherical structure, and one end of the mating part 22 in the X direction is connected to the guide part 21.

[0057] In other preferred embodiments, the mating part 22 has a platform-like structure, and the mating part 22 is smaller at both ends and larger in the middle in the X direction of the vehicle body 3. That is, its cross-sectional area at both ends in the X direction is smaller than its middle cross-sectional area.

[0058] In some embodiments, such as Figure 2 As shown, in order to improve component integration, reduce layout space, and reduce costs, an elastic part 5 is provided inside the positioner in this application. Specifically, the positioning pin 2 has an elastic part 5 on the side away from the guide part 21, and the elastic part is connected to the sliding door 4.

[0059] Furthermore, the elastic part 5 includes: a housing 51 and a disc spring 52; wherein,

[0060] The box body 51 has a cavity inside, and the surface of the box body 51 has a channel 511 for the positioning pin 2 to pass through. A disc spring 52 is assembled in the cavity of the box body 51, and the disc spring 52 is connected to the positioning pin 2.

[0061] It is worth noting that the elastic part 5 in this application is provided with a disc spring 52. The characteristics of the disc spring 52 are utilized, that is, the disc spring 52... Figure 5 As shown, when there is a zero-stiffness range during compression (before and after the disc spring 52 is flattened), the corresponding...Figure 5 The medium compression characteristic curve is close to the flat section. To achieve this effect, the design of the positioner theory is matched (the theoretical position of the sliding door 4 and the vehicle body 3 when closed is adjusted) when the disc spring is just flattened, and the up-down difference (generally ±1.5) corresponds to the flat zone ΔH in the disc spring compression characteristic curve ( Figure 5 ) so that within the tolerance matching range, the output reaction force ΔF is small, that is, when the vehicle body assembly accuracy fluctuates within the tolerance range, the positioner output limit force also changes little, avoiding the limit force being too small to cause the sliding door to be unstable, or the limit force being too large to cause the door closing force to be large. In order to achieve this purpose, a specific embodiment is provided in the present application, and the ratio of the flattening deformation amount of the disc spring 52 to the material thickness is 1.4. Specifically, the flattening deformation amount is determined according to the theoretical position of the sliding door 4 and the vehicle body 3 when closed.

[0062] It can be understood that, in order to facilitate installation, the sliding door positioner further comprises:

[0063] The first mounting plate 6 is arranged on the vehicle body 3, and the first mounting plate 6 is provided with a through hole for mounting the positioning seat 1. The second mounting plate 7 is arranged on the sliding door 4, and the second mounting plate 7 is provided with a through hole for mounting the box body 51. It can be understood that the positioning seat 1 is in a cylindrical structure to be arranged in the through hole of the first mounting plate 6.

[0064] Preferably, the guide portion 21 of the positioning pin 2 is conical and has a guide-in function. It can be understood that when the sliding door 4 moves close to the vehicle body 3, the guide portion 21 first enters the cylindrical hole 11 of the positioning seat 1 to assist the fitting portion 22 to enter the positioning seat 1.

[0065] Further, the surface friction coefficient of the guide portion 21 is less than 0.125. Preferably, the material of the guide portion 21 is PEEK added with 10% by weight of PTFE. This material has a very smooth surface and has self-lubricating properties, and is also very wear-resistant. The smoothness ensures that the positioning seat is easier to adapt to the positioning pin, and the positioning pin 2 and the positioning seat 1 often slide back and forth during the opening and closing process of the sliding door, and during driving, the positioning pin 2 and the positioning seat 1 also vibrate and press each other, so the wear resistance of the positioning seat 1 is very high.

[0066] In some preferred embodiments, the applicant found that in the prior art, the main focus is on the X-direction buffer of the vehicle body 3, i.e. the direction in which the sliding door moves towards the vehicle body, and the guide block limited by the coil spring is used, the compression curve is relatively loose, that is, the limiting force is greatly affected by the assembly tolerance, and in addition, due to the structural limitation, the limiting buffer can only be performed in a certain direction, which leads to poor stability of the sliding door and easy vibration and abnormal sound during driving. In other directions, there is almost no buffer or very small buffer. If the vehicle bounces during driving, the sliding door will shift in the vertical direction or other directions, i.e. it will move, so that the sliding door and the vehicle body will produce abnormal sound, and after a long time of use, the appearance gap and surface difference between the sliding door and the vehicle body will deteriorate.

[0067] Therefore, in order to solve the above-mentioned defects, in some other specific embodiments, the elastic part 5 of the present application includes a first ring-shaped part, a first elastic part and a second elastic part. The first ring-shaped part has a receiving space for cooperating with the positioning pin 2. The first elastic part is arranged on one side of the receiving space and is used to limit the continuous movement of the positioning pin 2 into the receiving space. The second elastic part is in the form of a ring-shaped cover arranged outside the first ring-shaped part.

[0068] Since the second elastic part is in the form of a ring-shaped cover arranged outside the first ring-shaped part, the second elastic part can absorb the vibration transmitted from the first ring-shaped part. Further, a second ring-shaped part is also included, which is arranged on the outer surface of the first ring-shaped part. The second ring-shaped part is coaxially arranged with the first ring-shaped part, and the second elastic part is arranged inside the second ring-shaped part and the first ring-shaped part. In general, the second elastic part is attached between the second ring-shaped part and the first ring-shaped part, so that in the stressed state, the kinetic energy is absorbed by the first elastic part and the second elastic part, so that the second ring-shaped part as a whole does not shift, and therefore when the vehicle bounces, only the first ring-shaped part, the first elastic part and the second elastic part shift, which does not cause the surface to emit abnormal sound, and at the same time, it can effectively prevent the positioning pin 2 from moving.

[0069] In summary, the present application sets an arc-shaped surface on the positioning pin, which is used as a cooperating part. When the positioner has an X-direction size deviation (the positioning pin is too deep or too shallow in the positioning seat), the part of the cooperating part and the positioning seat that is limited and cooperated is always the top of the arc-shaped surface, so that the positioning pin and the positioning seat are not too tight or have a gap, regardless of whether the positioning pin is too deep or too shallow. Figure 3The surface of the fitting part 22 is arc-shaped, so even if the positioning pin fitting part rotates, the fitting relationship between it and the positioning seat will not change. Therefore, the sliding door positioner in the application has strong adaptability to deviations, avoiding the occurrence of the state of the positioning pin being blocked or interfered. Further, 1) the X-direction size deviation and the Z-direction rotation size deviation of the sliding door 4 have no effect on the Y-direction positioning effect of the positioner, and the size tolerance performance is good. 2) The parts and functions are highly integrated, the layout space is small, and the cost is low: the traditional technology uses an independent rubber block to realize X-direction limiting and buffering, and the patent designs a disc spring 52 inside the positioner to replace the independent rubber block. The X-direction size deviation of the sliding door has little effect on the X-direction limiting and buffering force of the positioner: within a certain compression displacement range, the output reaction force of the disc spring changes little. The head of the positioning pin is a cone, and the self-adapting process has a guiding effect into the positioning seat, and the positioning seat is made of super wear-resistant and smooth material, which further improves the self-adapting efficiency and durability.

[0070] In the description of the present application, it should be noted that the terms "upper", "lower", 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 limiting the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0071] It should be noted that in the present application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0072] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. A sliding door positioner, characterized in that, include: Positioning seat (1), which is used to be assembled on the vehicle body (3), and the positioning seat (1) is provided with column hole (11). A positioning pin (2) is used to be installed on a sliding door (4). The positioning pin (2) includes a guide part (21) and a mating part (22). At least part of the surface of the mating part (22) is arc-shaped. The guide part (21) is located on the side of the mating part (22) away from the sliding door (4). The guide part (21) is used to guide the mating part (22) to be inserted into the post hole (11) of the positioning seat (1) so that the mating part (22) is engaged and limited with the post hole (11). The mating part (22) has a spherical structure, or the mating part (22) has a platform-shaped structure with small ends and large middle in the front and rear direction of the vehicle body (3).

2. The sliding door positioner as described in claim 1, characterized in that, The positioning pin (2) has an elastic part (5) on the side away from the guide part (21), and the elastic part is connected to the sliding door (4).

3. The sliding door positioner as described in claim 2, characterized in that, The elastic part (5) includes: The box body (51) has a cavity inside, and the surface of the box body (51) has a through hole (511) for the positioning pin (2) to pass through; A disc spring (52) is assembled in the cavity of the box (51), and the disc spring (52) is connected to the positioning pin (2).

4. The sliding door positioner as described in claim 3, characterized in that, The ratio of the flattening deformation of the disc spring (52) to the material thickness of the disc spring (52) is 1.

4.

5. The sliding door positioner as described in claim 3, characterized in that, Also includes: A first mounting plate (6) is assembled on the vehicle body (3), and the first mounting plate (6) has through holes for mounting the positioning seat (1). The second mounting plate (7) is assembled on the sliding door (4), and the second mounting plate (7) has through holes for mounting the box body (51).

6. The sliding door positioner as described in claim 1, characterized in that, The guide portion (21) of the positioning pin (2) is conical.

7. The sliding door positioner as described in claim 1, characterized in that, The surface friction coefficient of the positioning seat (1) is below 0.

125.

8. A car, characterized in that, include: The sliding door positioner as described in any one of claims 1-7.

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