B-pillar-free side-by-side door structure and vehicle

Abstract

The invention provides a B-pillar-free side-by-side door structure and a vehicle. The B-pillar-free side-by-side door structure comprises a body-in-white assembly, a front door assembly and a rear door assembly, the front door assembly is movably connected to the body-in-white assembly, and the rear door assembly is movably connected to the body-in-white assembly through a hinge assembly; the hinge assembly comprises a first hinge, a second hinge, a third hinge, a first hinge shaft and a second hinge shaft, and the hinge assembly is configured to have a first matching state and a second matching state; in the first matching state, the second hinge and the third hinge rotate around the first hinge shaft together; and in the second matching state, the third hinge independently rotates around the second hinge shaft. The front door and the rear door of the B-pillar side-by-side door structure can be opened independently, and use of passengers is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile design, and in particular to a double-door structure without a B-pillar and a vehicle. Background Art

[0002] The side door is an important part of the vehicle as a passage for passengers to enter and exit the vehicle, and it has both interior and exterior decoration. The traditional flat door side door can meet the basic needs of passengers to get on and off the vehicle, but it is not convenient enough in terms of getting on and off the vehicle. In addition, due to the opening angle limitation, rear passengers need to twist their bodies to get in and out of the vehicle, and the existence of the B-pillar also limits the convenience of passengers getting on and off the vehicle. In order to improve the convenience, comfort and aesthetics of the doors, more and more car models use non-traditional flat door forms, such as gull-wing doors, scissor doors, double doors, sliding doors, etc. The existing double door structure with B-pillars has the disadvantage of limiting the convenience of passengers getting on and off the vehicle. The existing double door structure without B-pillars has the disadvantage that the front door and the rear door need to be opened in sequence and cannot be opened independently, which affects the passengers' experience of getting on and off the vehicle.

[0003] Therefore, it is necessary to provide an improved B-pillar-free double-door structure and vehicle to overcome or reduce at least some of the shortcomings of the above-mentioned prior art. Summary of the invention

[0004] In a first aspect of the present invention, a B-pillar-free split-door structure is provided, wherein the B-pillar-free split-door structure comprises: a body-in-white assembly, a front door assembly, and a rear door assembly, wherein the front door assembly is movably connected to the body-in-white assembly, and the rear door assembly is movably connected to the body-in-white assembly by a hinge assembly;

[0005] The hinge assembly includes: a first hinge, a second hinge, a third hinge, a first hinge shaft, and a second hinge shaft, wherein the first hinge is connected to the side panel assembly, the second hinge, and the first hinge shaft of the body-in-white assembly, the second hinge is connected to the first hinge, the third hinge, the first hinge shaft, and the second hinge shaft, the third hinge is connected to the rear door body, the second hinge, and the second hinge shaft of the rear door assembly, and the hinge assembly is configured to have a first mating state and a second mating state; wherein, in the first mating state, the second hinge and the third hinge rotate together around the first hinge shaft; and in the second mating state, the third hinge rotates alone around the second hinge shaft.

[0006] Optionally, a first rotating shaft hole is formed on the first hinge;

[0007] The second hinge comprises a second hinge body and a force limiting plate, wherein the force limiting plate and the second hinge body are stacked, wherein the second hinge body is provided with a second rotation axis hole and a third rotation axis hole at intervals, and the force limiting plate is provided with a fourth rotation axis hole and a fifth rotation axis hole at intervals;

[0008] The third hinge comprises a third hinge body and a force-limiting shaft, a sixth rotating shaft hole is formed on the third hinge body, and the force-limiting shaft is formed on the third hinge body;

[0009] The first hinge shaft is inserted through the fourth rotating shaft hole, the second rotating shaft hole, and the first rotating shaft hole; the second hinge shaft is inserted through the fifth rotating shaft hole, the third rotating shaft hole, and the sixth rotating shaft hole;

[0010] And wherein, the force limiting shaft and the force limiting plate are adapted so that in a first matching state, the force limiting shaft and the force limiting plate are engaged with each other, and in a second matching state, the force limiting shaft and the force limiting plate are disengaged.

[0011] Optionally, a plurality of first force-limiting teeth are formed on the side surface of the end of the force-limiting plate close to the force-limiting shaft;

[0012] A second force-limiting tooth portion is formed on one side of the force-limiting shaft close to the force-limiting plate;

[0013] The second force-limiting tooth portion is matched with the plurality of first force-limiting tooth portions.

[0014] Optionally, the force-limiting shaft is made of spring steel, or a torsion spring structure is provided on the force-limiting shaft, so that the force-limiting shaft can be deformed.

[0015] Optionally, the end side surface of the force limiting plate close to the force limiting shaft is an arc-shaped surface, and a plurality of first force limiting teeth are formed along the arc-shaped surface; and / or

[0016] The fifth rotating shaft hole is an arc-shaped hole, and its size is larger than the third rotating shaft hole and the sixth rotating shaft hole.

[0017] Optionally, the first hinge includes a first vertical section and a second vertical section, the first vertical section is fixedly connected to the side panel assembly, the second vertical section is formed at an angle to the first vertical section and extends outward, and a first shaft hole extending in the up-down direction is formed on the second vertical section; and / or

[0018] The force limiting plate is arranged above the second hinge body, and a fourth rotation axis hole and a fifth rotation axis hole extending in the up-down direction are respectively formed at two ends of the force limiting plate, and a plurality of first force limiting teeth are formed on the side surface of the end of the force limiting plate where the fifth rotation axis hole is arranged; and / or

[0019] The third hinge body includes a horizontal section and a vertical section. A sixth rotating shaft hole extending in the up-down direction is formed at one end of the horizontal section, and the other end vertically extends upward to form a vertical section, which is fixedly connected to the rear door body.

[0020] Optionally, the body-in-white assembly further includes a rear door lower lock hook, a rear door lower lock body is provided on the rear door body, the rear door lower lock body is adapted to the rear door lower lock hook, wherein the rear door lower lock hook is arranged at an angle to the direction of the vehicle body.

[0021] Optionally, the B-pillar-free double-door structure further includes a sealing structure, which is arranged on the front side of the rear door body and the rear side of the front door body of the front door assembly.

[0022] Optionally, the hinge assembly includes a rear door upper hinge assembly and a rear door lower hinge assembly, and the rear door upper hinge assembly and the rear door lower hinge assembly are spaced apart in the up-and-down direction.

[0023] In a second aspect of the present invention, a vehicle is provided, wherein the vehicle includes the aforementioned B-pillar-less double-door structure.

[0024] The B-pillar double-door structure of the present invention includes a body-in-white assembly, a front door assembly, and a rear door assembly. The rear door assembly is movably connected to the body-in-white assembly by a hinge assembly. The hinge assembly is arranged to include a first hinge, a second hinge, a third hinge, a first hinge shaft, and a second hinge shaft, and the hinge assembly is configured to have a first mating state and a second mating state. In the first mating state, the second hinge and the third hinge rotate together around the first hinge shaft, and in the second mating state, the third hinge rotates alone around the second hinge shaft, so that a B-pillar-free structure can be achieved, providing convenience for passengers getting on and off the vehicle; at the same time, the front door and the rear door can be opened independently, which is convenient for passengers to use; and the rear door can avoid the front door when it is opened backwards, and the opening degree is larger, which further facilitates passengers to get on and off the vehicle.

[0025] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Features, advantages, and exemplary embodiments of the present invention will be described below with reference to the accompanying drawings, in which like reference numerals refer to like elements, and in which:

[0027] Figure 1 It is a schematic diagram of the structure of some components of a B-pillar-free double-door structure according to an embodiment of the present invention.

[0028] Figure 2 yes Figure 1 A partial enlarged schematic diagram of .

[0029] Figure 3 yes Figure 1 Schematic diagram of the structure of the double-door without B-pillar.

[0030] Figure 4 is along Figure 3 Schematic diagram of the partial section along line AA.

[0031] Figure 5 yes Figure 1 Schematic diagram of the structure of the rear door hinge assembly of the B-pillar-free double-door structure.

[0032] Figure 6 yes Figure 5 A partial enlarged schematic diagram of the rear door hinge assembly from another angle.

[0033] Figure 7 yes Figure 1 Schematic diagram of the opening process of the rear door of the B-pillar-free double-door structure. DETAILED DESCRIPTION

[0034] The exemplary embodiments of the present invention are described in detail below with reference to the accompanying drawings. The description of the exemplary embodiments is merely exemplary and is by no means a limitation of the present invention and its application or usage. Moreover, the sizes and proportions of the components in the drawings are merely schematic and do not strictly correspond to actual products.

[0035] The present invention provides a B-pillar-free split-door structure 100, wherein Figure 1 and Figure 3 As shown, the B-pillar-free split door structure 100 includes: a body-in-white assembly 1, a front door assembly 2, and a rear door assembly 3. The front door assembly 2 is movably connected to the body-in-white assembly 1, and the rear door assembly 3 is movably connected to the body-in-white assembly 1 using a hinge assembly 30. Figure 5 and Figure 6 As shown, the hinge assembly 30 includes: a first hinge 321, a second hinge 322, a third hinge 323, a first hinge shaft 324, and a second hinge shaft 325, wherein the first hinge 321 is connected to the side assembly 11, the second hinge 322, and the first hinge shaft 324 of the body-in-white assembly 1, the second hinge 322 is connected to the first hinge 321, the third hinge 323, the first hinge shaft 324, and the second hinge shaft 325, and the third hinge 323 is connected to the rear door body 31, the second hinge 322, and the second hinge shaft 325 of the rear door assembly 3, and the hinge assembly 30 is configured to have a first mating state and a second mating state; wherein, in the first mating state, the second hinge 322 and the third hinge 323 rotate together around the first hinge shaft 324; and in the second mating state, the third hinge 323 rotates alone around the second hinge shaft 325.

[0036] The B-pillar split door structure 100 of the embodiment of the present invention comprises a body-in-white assembly 1, a front door assembly 2, and a rear door assembly 3, wherein the rear door assembly 3 is movably connected to the body-in-white assembly 1 by a hinge assembly 30. When designing a vehicle, the gap between the front door and the rear door is relatively small in consideration of the aesthetics of the gap surface difference. If the rear door adopts a common hinge structure, the rear door will interfere with the front door when it is opened. In order to realize the separate opening of the front door and the rear door, an embodiment of the present invention proposes a new hinge structure, by setting the hinge assembly 30 to include a first hinge 321, a second hinge 322, a third hinge 323, a first hinge shaft 324, and a second hinge shaft 325, and the hinge assembly 30 is configured to have a first mating state and a second mating state. In the first mating state, the second hinge 322 and the third hinge 323 rotate together around the first hinge shaft 324, and in the second mating state, the third hinge 323 rotates alone around the second hinge shaft 325, so that a B-pillar-free structure can be realized, which provides convenience for passengers to get on and off the vehicle; at the same time, the front door and the rear door can be opened independently, which is convenient for passengers to use; and the rear door can avoid the front door when opening backwards, and the opening degree is larger, which further facilitates passengers to get on and off the vehicle.

[0037] The present invention further provides a vehicle, wherein the vehicle comprises the aforementioned B-pillar-free split-door structure 100. The vehicle has similar technical effects as the aforementioned B-pillar-free split-door structure 100.

[0038] refer to Figures 5 to 7 , a first rotating shaft hole (not shown in the figure) is formed on the first hinge 321. The second hinge 322 includes a second hinge body 3221 and a force limiting plate 3222, the force limiting plate 3222 and the second hinge body 3221 are stacked, wherein the second hinge body 3221 is formed with a second rotating shaft hole (not shown in the figure) and a third rotating shaft hole 32211 at intervals, and the force limiting plate 3222 is formed with a fourth rotating shaft hole (not shown in the figure) and a fifth rotating shaft hole 32221 at intervals. The third hinge 323 includes a third hinge body 3231 and a force limiting shaft 3232, a sixth rotating shaft hole (not shown in the figure) is formed on the third hinge body 3231, and the force limiting shaft 3232 is formed on the third hinge body 3231. The first hinge shaft 324 is inserted through the fourth rotation axis hole, the second rotation axis hole, and the first rotation axis hole; the second hinge shaft 325 is inserted through the fifth rotation axis hole 32221, the third rotation axis hole 32211, and the sixth rotation axis hole. The force-limiting shaft 3232 and the force-limiting plate 3222 are matched, so that in a first mating state, the force-limiting shaft 3232 and the force-limiting plate 3222 are engaged with each other, and in a second mating state, the force-limiting shaft 3232 and the force-limiting plate 3222 are disengaged. By providing a matching force-limiting shaft 3232 and force-limiting plate 3222, the hinge assembly 30 can be switched between the first mating state and the second mating state. Figure 7As shown, when the rear door is opened, the hinge assembly 30 first moves in the first matching state, and the rear door changes from the closed state S1 to the first open state S2, and then moves in the second matching state, and the rear door changes from the first open state S2 to the second open state S3. By moving in the first matching state, the sealing structure 4 of the rear door is separated from the front door assembly 2 by a distance L, and this distance L can ensure that the rear door body 31 does not interfere with the front door assembly 2 during the opening process.

[0039] Continue to refer Figure 5 and Figure 6 In some embodiments, a plurality of first force-limiting teeth 32222 are formed on the side of the end of the force-limiting plate 3222 close to the force-limiting shaft 3232; a second force-limiting teeth 32321 is formed on the side of the force-limiting shaft 3232 close to the force-limiting plate 3222; and the second force-limiting teeth 32321 are matched with the first force-limiting teeth 32222. The number of the second force-limiting teeth 32321 is usually one, which is formed on the side of the end of the force-limiting shaft 3232 close to the force-limiting plate 3222. In a preferred embodiment, the side of the end of the force-limiting plate 3222 close to the force-limiting shaft 3232 is an arc-shaped surface, and a plurality of first force-limiting teeth 32222 are formed along the arc-shaped surface. The force-limiting shaft 3232 can be made of spring steel, or a torsion spring structure can be provided on the force-limiting shaft 3232, so that the force-limiting shaft 3232 can be deformed.

[0040] Continue to refer Figure 6 The fifth shaft hole 32221 is an arc-shaped hole, and its size is larger than the third shaft hole 32211 and the sixth shaft hole. The first shaft hole, the second shaft hole, the third shaft hole 32211, the fourth shaft hole and the sixth shaft hole are usually ordinary circular holes, while the fifth shaft hole 32221 is an arc-shaped hole.

[0041] In some embodiments, Figure 5 As shown, the first hinge 321 may include a first vertical section 3211 and a second vertical section 3212, the first vertical section 3211 is fixedly connected to the side enclosure assembly 11, the second vertical section 3212 is formed at an angle to the first vertical section 3211 and extends outward, and a first rotating shaft hole extending in the up-down direction is formed on the second vertical section 3212. The first vertical section 3211 is used to connect to the side enclosure assembly 11, and the second vertical section 3212 is used to connect the second hinge 322 and the first hinge shaft 324. Here, the vertical section is relative to the horizontal plane. It can be understood that the first vertical section 3211 and the second vertical section 3212 are not necessarily completely vertical sections, but can also be sections with a large inclination angle to the horizontal plane. The first vertical section 3211 and the second vertical section 3212 can have a smooth transition. The first vertical section 3211 may be provided with a first connection hole, and a fixing piece may be passed through the first connection hole 3213 to fix the first vertical section 3211 and the side enclosure assembly 11 together.

[0042] like Figure 6 As shown, in some embodiments, the force limiting plate 3222 can be arranged above the second hinge body 3221, and the force limiting plate 3222 is respectively formed with a fourth shaft hole and a fifth shaft hole 32221 extending in the up-down direction at both ends, and a plurality of first force limiting teeth 32222 are formed on the side of the end of the force limiting plate 3222 where the fifth shaft hole 32221 is arranged. When the force limiting plate 3222 is arranged above the second hinge body 3221, the force limiting shaft 3232 is also located above the third hinge body 3231, so as to achieve the second force limiting teeth 32321 and the plurality of first force limiting teeth 32222 matching. The force limiting plate 3222 can also be arranged below the second hinge body 3221, and the position of the force limiting shaft 3232 is adjusted accordingly. Usually, the force limiting plate 3222 is arranged above the second hinge body 3221, which is convenient for assembly and easy for maintenance.

[0043] In some embodiments, Figure 6 As shown, the third hinge body 3231 may include a horizontal section 32311 and a vertical section 32312. A sixth rotating shaft hole extending in the up-down direction is formed at one end of the horizontal section 32311, and the other end extends vertically upward to form a vertical section 32312. The vertical section 32312 is fixedly connected to the rear door body 31. Here, the horizontal section 32311 is relative to the horizontal plane. It can be understood that the horizontal section 32311 is not necessarily a completely horizontal section, but can also be a section with a small inclination angle to the horizontal plane; the vertical section 32312 is not necessarily a completely vertical section, but can also be a section with a large inclination angle to the horizontal plane. A second connecting hole may be provided on the vertical section 32312, and the vertical section 32312 is fixedly connected to the rear door body 31 by using a fixing member to pass through the second connecting hole. The sixth rotation axis hole and the vertical section 32312 are arranged at the two ends of the horizontal section 32311, which can make the layout of the third hinge body 3231 compact and reduce the volume.

[0044] In some embodiments, Figure 1 and Figure 2 As shown, the body-in-white assembly 1 may further include a rear door lower lock hook 15, and a rear door lower lock body (not shown) is disposed on the rear door body 31, and the rear door lower lock body is adapted to the rear door lower lock hook 15, wherein the rear door lower lock hook 15 is disposed at an angle to the direction of the vehicle body. By disposing the rear door lower lock hook 15 at an angle to the direction of the vehicle body, the rear door body 31 can be guided to move along a certain motion trajectory. Figure 2 In the illustrated embodiment, the rear door lower lock hook 15 is substantially at an angle of 45 degrees to the vehicle body direction. The vehicle body direction is the front-rear direction of the vehicle.

[0045] like Figure 3 and Figure 4 As shown, the B-pillar-free double-door structure 100 of the embodiment of the present invention may also include a sealing structure 4, which is arranged on the front side of the rear door body 31 and the rear side of the front door body 21 of the front door assembly 2. By arranging the sealing structure 4 on the front side of the rear door body 31 and the rear side of the front door body 21 of the front door assembly 2, sufficient rotation space can be reserved for the door to open in the Y direction. The specific composition of the sealing structure 4 can adopt any structure in the prior art that can achieve sealing of the front door and the rear door, and is not limited here.

[0046] like Figure 1 As shown, the hinge assembly 30 generally includes an upper rear door hinge assembly 32 and a lower rear door hinge assembly 33, and the upper rear door hinge assembly 32 and the lower rear door hinge assembly 33 are arranged at intervals in the vertical direction. By arranging the upper rear door hinge assembly 32 and the lower rear door hinge assembly 33 at the upper and lower positions, the stability of the rotation of the rear door assembly 3 when opening and closing is ensured.

[0047] The composition of the B-pillar-free double-door structure 100 according to an embodiment of the present invention will be described in more detail below with reference to the accompanying drawings.

[0048] The B-pillar-free double-door structure 100 of the embodiment of the present invention includes a body-in-white assembly 1 , a front door assembly 2 , and a rear door assembly 3 .

[0049] The body-in-white assembly 1 includes a side panel assembly 11, a front door upper locking hook 12, a front door lower locking hook 13, a rear door upper locking hook 14, a rear door lower locking hook 15, and other structures. For the body-in-white assembly 1, other structures are typical structures commonly found in a body-in-white assembly and are not limited here. The body-in-white assembly 1 can also be referred to as a body shell assembly.

[0050] like Figure 1 As shown, the front door upper lock hook 12, the front door lower lock hook 13, the rear door upper lock hook 14, and the rear door lower lock hook 15 are respectively arranged on the side wall assembly 11, wherein the front door upper lock hook 12 and the front door lower lock hook 13 are respectively arranged at the middle front position of the side wall assembly 11 in the up-down direction, corresponding to the front door assembly 2; the rear door upper lock hook 14 and the rear door lower lock hook 15 are respectively arranged at the middle rear position of the side wall assembly 11 in the up-down direction, corresponding to the rear door assembly 3. The front door upper lock hook 12, the front door lower lock hook 13, the rear door upper lock hook 14, and the rear door lower lock hook 15 can be, for example, screwed to the side wall assembly 11.

[0051] The front door assembly 2 includes a front door body 21, a front door upper hinge 22, a front door lower hinge 23 and other structures. The front side of the front door assembly 2 is connected and fixed to the body-in-white assembly 1 through the front door upper hinge 22 and the front door lower hinge 23, and the rear side of the front door assembly 2 is locked with the side panel assembly 11 through the front door upper locking hook 12 and the front door lower locking hook 13, so that the front door assembly 2 can be opened and closed normally. For the front door assembly 2, other structures are typical structures commonly found in a front door assembly and are not limited here.

[0052] Specifically, the front door body 21 is provided with a front door upper lock body (not shown in the figure) and a front door lower lock body (not shown in the figure) that are compatible with the front door upper lock hook 12 and the front door lower lock hook 13 at the positions corresponding to the front door upper lock hook 12 and the front door lower lock hook 13. When the front door upper lock hook 12 and the front door lower lock hook 13 are inserted into the front door upper lock body and the front door lower lock body, the front door assembly 2 is in a closed state and cannot be opened outwards; when the front door upper lock hook 12 and the front door lower lock hook 13 are separated from the front door upper lock body and the front door lower lock body, the front door assembly 2 is in an open state and can be opened outwards. By respectively providing the front door upper lock hook 12 and the front door lower lock hook 13 at the upper and lower ends of the body-in-white assembly 1, the connection stability and closed sealing of the front door assembly 2 and the body-in-white assembly 1 are ensured. The front door upper lock hook 12, the front door lower lock hook 13, the front door upper lock body, and the front door lower lock body can adopt any structure that can achieve lock connection in the prior art, and are not limited here.

[0053] like Figure 1 As shown, the front door upper hinge 22 and the front door lower hinge 23 are generally arranged at the position of the A-pillar and are spaced apart in the up and down directions. The front door upper hinge 22 and the front door lower hinge 23 are respectively connected to the side panel assembly 11 and the front door body 21. Usually, the front door upper hinge 22 and the front door lower hinge 23 are respectively hinged to the side panel assembly 11 and are respectively screwed to the front door body 21, so that the front door body 21 rotates along the axis of the front door upper hinge 22 and the axis of the front door lower hinge 23 to realize the opening and closing of the front door. The front door upper hinge 22 and the front door lower hinge 23 can adopt any hinge structure that can realize the opening and closing of the front door in the prior art, and are not limited here. By arranging the front door upper hinge 22 and the front door lower hinge 23 at the upper and lower positions, respectively, the stability of the rotation of the front door assembly 2 when opening and closing is guaranteed.

[0054] The rear door assembly 3 includes a rear door body 31, a rear door upper hinge assembly 32, a rear door lower hinge assembly 33 and other structures. The rear side of the rear door assembly 3 is connected and fixed to the body-in-white assembly 1 through the rear door upper hinge assembly 32 and the rear door lower hinge assembly 33, and the front side of the rear door assembly 3 is locked with the side panel assembly 11 through the rear door upper locking hook 14 and the rear door lower locking hook 15, so that the rear door assembly 3 can be opened and closed normally. For the rear door assembly 3, the other structures are typical structures commonly possessed by the rear door assembly and are not limited here.

[0055] The rear door body 31 is provided with a rear door upper lock body (not shown in the figure) and a rear door lower lock body (not shown in the figure) that are compatible with the rear door upper lock hook 14 and the rear door lower lock hook 15 at the positions corresponding to the rear door upper lock hook 14 and the rear door lower lock hook 15. When the rear door upper lock hook 14 and the rear door lower lock hook 15 are inserted into the rear door upper lock body and the rear door lower lock body, the rear door assembly 3 is in a closed state and cannot be opened outward; when the rear door upper lock hook 14 and the rear door lower lock hook 15 are separated from the rear door upper lock body and the rear door lower lock body, the rear door assembly 3 is in an open state and can be opened outward. By respectively providing the rear door upper lock hook 14 and the rear door lower lock hook 15 at the upper and lower ends of the body-in-white assembly 1, the connection stability and closed sealing of the rear door assembly 3 and the body-in-white assembly 1 are ensured.

[0056] like Figure 1 As shown, the rear door upper hinge assembly 32 and the rear door lower hinge assembly 33 are generally arranged at the C-pillar position and are spaced apart in the vertical direction. The rear door upper hinge assembly 32 and the rear door lower hinge assembly 33 are respectively connected to the side panel assembly 11 and the rear door body 31. By arranging the rear door upper hinge assembly 32 and the rear door lower hinge assembly 33 at the upper and lower positions, the rotation stability of the rear door assembly 3 when opening and closing is ensured.

[0057] When designing a vehicle, the gap between the front door and the rear door is small in consideration of the aesthetics of the gap surface difference. If the rear door adopts a common hinge structure, the rear door will interfere with the front door when it is opened. In order to realize the independent opening of the front door and the rear door, the present application proposes a new hinge structure, in particular, a hinge assembly for the rear door. The structure of the rear door upper hinge assembly 32 and the rear door lower hinge assembly 33 are the same. In the following, the composition of the rear door upper hinge assembly 32 to the rear door hinge assembly will be described in detail.

[0058] like Figure 5 As shown, the rear door upper hinge assembly 32 includes: a first hinge 321, a second hinge 322, a third hinge 323, a first hinge shaft 324, and a second hinge shaft 325. The first hinge 321 may also be referred to as a rear door body side hinge, the second hinge 322 may also be referred to as a rear door middle side hinge, the third hinge 323 may also be referred to as a rear door vehicle side hinge, the first hinge shaft 324 may also be referred to as a rear door vehicle side hinge shaft, and the second hinge shaft 325 may also be referred to as a rear door vehicle side hinge shaft.

[0059] The first hinge 321 is used to connect with the side enclosure assembly 11 , the second hinge 322 , and the first hinge shaft 324 . The first hinge 321 includes a first vertical section 3211 and a second vertical section 3212 .

[0060] The first vertical section 3211 extends substantially parallel to the side enclosure assembly 11. A first connecting hole 3213 extending in the front-rear direction is formed on the first vertical section 3211, so that the first hinge 321 is fixedly connected to the side enclosure assembly 11 through the first connecting hole 3213 using a fixing member such as a screw.

[0061] The second vertical section 3212 is formed to extend outward at an angle to the first vertical section 3211, for example, the second vertical section 3212 is substantially perpendicular to the first vertical section 3211 and extends outward. A first rotation axis hole (not shown in the figure) extending in the up-down direction is formed at the end of the second vertical section 3212 away from the first vertical section 3211. The first hinge shaft 324 is passed through the first rotation axis hole. The first rotation axis hole is usually a circular hole.

[0062] The second hinge 322 is used to connect with the first hinge 321 , the third hinge 323 , the first hinge shaft 324 , and the second hinge shaft 325 . The second hinge 322 includes a second hinge body 3221 and a force limiting plate 3222 .

[0063] The second hinge body 3221 is formed with a second shaft hole (not shown in the figure) and a third shaft hole 32211 extending in the up-down direction at both ends. The end of the second hinge body 3221 where the second shaft hole is provided can be referred to as the vehicle body side end of the second hinge body 3221, and the end of the second hinge body 3221 where the third shaft hole 32211 is provided can be referred to as the door side end of the second hinge body 3221. The end of the second hinge body 3221 where the second shaft hole is provided is provided above the second vertical section 3212, so that the first hinge shaft 324 is sequentially provided in the second shaft hole and the first shaft hole. The second hinge shaft 325 is provided in the third shaft hole 32211. The second shaft hole and the third shaft hole 32211 are usually circular holes.

[0064] The force limiting plate 3222 is disposed above the second hinge body 3221 and is fixed to the second hinge body 3221. The force limiting plate 3222 and the second hinge body 3221 may be an integrated structure or a split structure.

[0065] The force limiting plate 3222 is formed with a fourth shaft hole (not shown in the figure) and a fifth shaft hole 32221 extending in the up-down direction at both ends, and a plurality of first force limiting teeth 32222 are formed on the side of the end of the force limiting plate 3222 where the fifth shaft hole 32221 is provided. The end of the force limiting plate 3222 where the fourth shaft hole is provided can be referred to as the vehicle body side end of the force limiting plate 3222, and the end of the force limiting plate 3222 where the fifth shaft hole 32221 is provided can be referred to as the vehicle door side end of the force limiting plate 3222.

[0066] The end of the force limiting plate 3222 where the fourth rotation axis hole is arranged is located above the second rotation axis hole of the second hinge body 3221. Thus, the first hinge shaft 324 is sequentially passed through the fourth rotation axis hole, the second rotation axis hole, and the first rotation axis hole. The fourth rotation axis hole is usually a circular hole, and its size is substantially the same as that of the second rotation axis hole and the first rotation axis hole.

[0067] The end of the force limiting plate 3222 where the fifth rotation axis hole 32221 is arranged is located above the third rotation axis hole 32211 of the second hinge body 3221, so that the second hinge shaft 325 is sequentially passed through the fifth rotation axis hole 32221 and the third rotation axis hole 32211. The fifth rotation axis hole 32221 is usually an arc hole, and its size is different from that of the third rotation axis hole 32211.

[0068] The side surface of the end of the force limiting plate 3222 where the fifth rotation shaft hole 32221 is provided is an arc-shaped surface, and a plurality of first force limiting teeth 32222 are formed along the arc-shaped surface.

[0069] The third hinge 323 is used to connect with the rear door body 31, the second hinge 322, and the second hinge shaft 325. The third hinge 323 includes a third hinge body 3231 and a force-limiting shaft 3232.

[0070] The third hinge body 3231 includes a horizontal section 32311 and a vertical section 32312. The horizontal section 32311 extends substantially horizontally. A sixth rotation axis hole (not shown) extending in the up-down direction is formed at one end of the horizontal section 32311, and the other end substantially extends vertically upward to form a vertical section 32312. The end of the horizontal section 32311 where the sixth rotation axis hole is provided is located below the third rotation axis hole 32211 of the second hinge body 3221, so that the second hinge shaft 325 is sequentially provided in the fifth rotation axis hole 32221, the third rotation axis hole 32211, and the sixth rotation axis hole. The sixth rotation axis hole is generally a circular hole, and its size is substantially the same as that of the third rotation axis hole 32211. A second connection hole 32313 extending in the left-right direction is formed on the vertical section 32312 , so that the third hinge 323 is fixedly connected to the rear door body 31 through the second connection hole 32313 using a fixing member such as a screw.

[0071] The force-limiting shaft 3232 is formed above the horizontal section 32311 and near the sixth rotating shaft hole. In addition, a second force-limiting tooth portion 32321 is formed at the upper portion of the force-limiting shaft 3232, usually the upper end portion. The second force-limiting tooth portion 32321 is adapted to the plurality of first force-limiting tooth portions 32222. In other words, the force-limiting constraint between the second hinge 322 and the third hinge 323 is mainly exerted by the engagement or disengagement of the second force-limiting tooth portion 32321 of the force-limiting shaft 3232 and the first force-limiting tooth portion 32222 of the force-limiting plate 3222. The force-limiting shaft 3232 can be made of spring steel, or an additional torsion spring structure can be added to the force-limiting shaft 3232, so as to provide the force-limiting shaft 3232 with a certain deformation ability and realize the force-limiting function. Through the force limiting action of the force limiting shaft 3232 and the force limiting plate 3222, temporary force limiting can be achieved between the second hinge 322 and the third hinge 323. In conjunction with other structures of the hinge assembly, the rear door body 31 can be opened without interfering with the front door assembly 2.

[0072] Combine the following Figure 7 The movement process of the B-pillar-free disordered double-door structure 100 according to an embodiment of the present application is described in detail. Figure 7 A closed state S1, a first open state S2 and a second open state S3 are shown in FIG.

[0073] In the closed state S1, the first hinge 321, the second hinge 322 and the third hinge 323 are all in a stationary state, and the third hinge 323 and the second hinge 322 are substantially straight, and the force limiting shaft 3232 and the first force limiting tooth portion 32222 of the force limiting plate 3222 are engaged to play a force limiting role.

[0074] When force is applied to the rear door body 31 to open the rear door, the second hinge 322 begins to rotate around the first hinge axis 324. At the same time, since the third hinge 323 and the second hinge 322 are constrained by the force limiting plate 3222 and the force limiting axis 3232, the relative angle between the third hinge 323 and the second hinge 322, that is, the relative position of the third hinge 323 and the second hinge 322, remains unchanged, and the hinge assembly as a whole is in the first mating state. In this way, the rear door body 31 moves along the first trajectory T1.

[0075] In this way, the rear door sealing structure 4 is separated from the front door assembly 2 by a distance L. This distance L can ensure that the rear door body 31 does not interfere with the front door assembly 2 during the opening process.

[0076] The second hinge 322 continues to rotate around the first hinge axis 324. After a certain angle, the force limiting axis 3232 and the first force limiting tooth portion 32222 of the force limiting plate 3222 are disengaged and no longer limited, and the hinge assembly as a whole is in the second matching state. At this time, the second hinge 322 can no longer rotate around the first hinge axis 324, that is, the second hinge 322 is in a stationary state again. At this time, the rear door body 31 is in the first open state S2.

[0077] Thereafter, the third hinge 323 rotates around the second hinge shaft 325, that is, the rear door body 31 rotates around the second hinge shaft 325. The rear door body 31 can be rotated to be opened to the maximum opening as required. Figure 7 2 shows that the rear door body 31 moves along the second trajectory T2 from the first open state S2 to the second open state S3.

[0078] As mentioned above, in order to ensure that the rear door can move along the set first trajectory T1, the rear door lower lock hook 15 is designed to have an angled structure, that is, at an angle to the direction of the vehicle body, thereby guiding the rear door to move along the movement trajectory.

[0079] In addition, the sealing structure 4 between the front door assembly 2 and the rear door assembly 3 is arranged on the front side surface of the rear door body 31 and the rear side surface of the front door body 21, and the sealing structure 4 is positioned at a central position away from the stop edge of the front door so as to reserve sufficient rotation space in the Y direction for the vehicle door to be opened.

[0080] The B-pillar-free double-door structure 100 of the embodiment of the present application achieves improvements in the door locking form and the door opening method through structural innovation, and can realize a B-pillar-free structure, providing convenience for passengers to get on and off the vehicle; at the same time, the front door and the rear door can be opened independently, which is convenient for passengers to use; and, when the rear door is opened backwards, it can avoid the front door and have a larger opening, further facilitating passengers to get on and off the vehicle.

[0081] In the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the feature. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0082] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "an example", "some embodiments", or "preferred embodiment" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0083] The embodiments of the present invention are described in detail above. However, aspects of the present invention are not limited to the above embodiments. Various modifications and substitutions may be applied to the above embodiments without departing from the scope of the present invention.

Claims

1. A B-pillar-free double-door structure (100), wherein: The B-pillar-free split-door structure (100) comprises: a body-in-white assembly (1), a front door assembly (2), and a rear door assembly (3), wherein the front door assembly (2) is movably connected to the body-in-white assembly (1), and the rear door assembly (3) is movably connected to the body-in-white assembly (1) by means of a hinge assembly (30); and is characterized in that: The hinge assembly (30) comprises: a first hinge (321), a second hinge (322), a third hinge (323), a first hinge shaft (324), and a second hinge shaft (325), wherein the first hinge (321) is connected to the side assembly (11) of the body-in-white assembly (1), the second hinge (322), and the first hinge shaft (324), and the second hinge (322) is connected to the first hinge (321), the third hinge (323), the first hinge shaft (324), and the second hinge shaft (325). 5), the third hinge (323) is connected to the rear door body (31), the second hinge (322), and the second hinge shaft (325) of the rear door assembly (3), and the hinge assembly (30) is configured to have a first mating state and a second mating state; wherein, in the first mating state, the second hinge (322) and the third hinge (323) rotate together around the first hinge shaft (324); and in the second mating state, the third hinge (323) rotates alone around the second hinge shaft (325).

2. The B-pillar-free double-door structure (100) according to claim 1, wherein: A first rotating shaft hole is formed on the first hinge (321); The second hinge (322) comprises a second hinge body (3221) and a force limiting plate (3222), wherein the force limiting plate (3222) and the second hinge body (3221) are stacked, wherein the second hinge body (3221) is provided with a second rotation axis hole and a third rotation axis hole (32211) at intervals, and the force limiting plate (3222) is provided with a fourth rotation axis hole and a fifth rotation axis hole (32221) at intervals; The third hinge (323) comprises a third hinge body (3231) and a force-limiting shaft (3232), a sixth rotating shaft hole is formed on the third hinge body (3231), and the force-limiting shaft (3232) is formed on the third hinge body (3231); Wherein, the first hinge shaft (324) is inserted through the fourth rotating shaft hole, the second rotating shaft hole, and the first rotating shaft hole; the second hinge shaft (325) is inserted through the fifth rotating shaft hole (32221), the third rotating shaft hole (32211), and the sixth rotating shaft hole; And wherein, the force-limiting shaft (3232) and the force-limiting plate (3222) are adapted so that in the first mating state, the force-limiting shaft (3232) and the force-limiting plate (3222) are engaged with each other, and in the second mating state, the force-limiting shaft (3232) and the force-limiting plate (3222) are disengaged.

3. The B-pillar-free double-door structure (100) according to claim 2, wherein: A plurality of first force-limiting teeth (32222) are formed on the side surface of the end of the force-limiting plate (3222) close to the force-limiting shaft (3232); A second force-limiting tooth portion (32321) is formed on one side of the force-limiting shaft (3232) close to the force-limiting plate (3222); The second force-limiting tooth portion (32321) is adapted to the plurality of first force-limiting tooth portions (32222).

4. The B-pillar-free double-door structure (100) according to claim 3, wherein: The force-limiting shaft (3232) is made of spring steel, or a torsion spring structure is provided on the force-limiting shaft (3232), so that the force-limiting shaft (3232) can be deformed.

5. The B-pillar-free double-door structure (100) according to claim 3, wherein: The end side surface of the force-limiting plate (3222) close to the force-limiting shaft (3232) is an arc-shaped surface, and the plurality of first force-limiting teeth (32222) are formed along the arc-shaped surface; and / or The fifth rotating shaft hole (32221) is an arc-shaped hole, and its size is larger than the third rotating shaft hole (32211) and the sixth rotating shaft hole.

6. The B-pillar-free double-door structure (100) according to claim 3, wherein: The first hinge (321) comprises a first vertical section (3211) and a second vertical section (3212), the first vertical section (3211) being fixedly connected to the side enclosure assembly (11), the second vertical section (3212) being formed at an angle to the first vertical section (3211) and extending outward, and the first rotating shaft hole extending in the up-down direction is formed on the second vertical section (3212); and / or The force limiting plate (3222) is arranged above the second hinge body (3221), and the force limiting plate (3222) is respectively formed with the fourth rotation axis hole and the fifth rotation axis hole (32221) extending in the up-down direction at two ends thereof, and the end side surface of the force limiting plate (3222) where the fifth rotation axis hole (32221) is arranged is formed with the plurality of first force limiting teeth (32222); and / or The third hinge body (3231) includes a horizontal section (32311) and a vertical section (32312), and the sixth rotating shaft hole extending in the up-down direction is formed at one end of the horizontal section (32311), and the vertical section (32312) is extended vertically upward at the other end, and the vertical section (32312) is fixedly connected to the rear door body (31).

7. The B-pillar-free double-door structure (100) according to claim 1, wherein: The body-in-white assembly (1) further comprises a rear door lower lock hook (15), and a rear door lower lock body is arranged on the rear door body (31), and the rear door lower lock body is adapted to the rear door lower lock hook (15), wherein the rear door lower lock hook (15) is arranged at an angle with respect to the direction of the vehicle body.

8. The B-pillar-free double-door structure (100) according to claim 1, wherein: The B-pillar-free split door structure (100) further includes a sealing structure (4), wherein the sealing structure (4) is arranged on the front side surface of the rear door body (31) and the rear side surface of the front door body (21) of the front door assembly (2).

9. The B-pillar-free double-door structure (100) according to claim 1, wherein: The hinge assembly (30) comprises a rear door upper hinge assembly (32) and a rear door lower hinge assembly (33), and the rear door upper hinge assembly (32) and the rear door lower hinge assembly (33) are arranged at intervals in the up and down directions.

10. A vehicle, wherein: The vehicle comprises a B-pillar-free split-door structure (100) according to any one of claims 1 to 9.

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