Semi-solid tubular beam and vehicle body structure

Abstract

The invention discloses a semi-solid tubular beam and a vehicle body structure, and relates to the technical field of vehicle body technologys.The semi-solid tubular beam comprises an A-column tubular beam, a B-column tubular beam and a first connecting piece, the first connecting piece is arranged in the extending direction of the B-column tubular beam, a first connecting face of the B-column tubular beam is fixedly connected with the first connecting piece, and a second connecting face of the B-column tubular beam is fixedly connected with the second connecting piece; and the second connecting surface of the A column tubular beam is fixedly connected with the first connecting piece. The first connecting piece is adopted for supporting and reinforcing the B-column tubular beam in the extending direction of the B-column tubular beam, the strength of the side face of the B-column tubular beam is enhanced, the connecting strength of the A-column tubular beam and the first connecting piece support is guaranteed, and finally the connecting strength between the A-column tubular beam and the B-column tubular beam is guaranteed; the A-column tubular beam and the B-column tubular beam can be connected in a reinforced mode through the first connecting piece, and the problem that the lateral structural strength of an automobile body is low is solved on the whole.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle bodies, and in particular to a semi-solid tube beam and a vehicle body structure. Background Art

[0002] With the development of the automobile industry, automobile safety and lightweight have become two important concerns in today's automobile design.

[0003] As key components in the automobile body structure, the A-pillar and the B-pillar play an important role in side collisions. The strength of the A-pillar and the B-pillar is related to the safety performance of the automobile. In common automobile bodies, in order to meet the requirements of lightweight automobiles, the A-pillar and the B-pillar adopt a single tubular structure, and the A-pillar and the B-pillar are fixedly connected, resulting in the problem of low lateral structural strength of the automobile body. Summary of the invention

[0004] The main purpose of the present invention is to provide a semi-solid tube beam and a car body structure, aiming to improve the problem of low lateral structural strength of the car body.

[0005] To achieve the above-mentioned purpose, the semi-solid tubular beam proposed in the present invention includes an A-pillar tubular beam, a B-pillar tubular beam and a first connecting member, wherein the first connecting member is arranged along the extension direction of the B-pillar tubular beam, the outer side of the B-pillar tubular beam has a first connecting surface arranged along the extension direction of the B-pillar tubular beam, the first connecting surface of the B-pillar tubular beam is fixedly connected to the first connecting member, the A-pillar tubular beam has a second connecting surface arranged along the extension direction of the A-pillar tubular beam, and the second connecting surface of the A-pillar tubular beam is fixedly connected to the first connecting member.

[0006] In one embodiment, the first connecting member is a metal cast plate.

[0007] In one embodiment, the metal cast plate is an aluminum alloy plate.

[0008] In one embodiment, the B-pillar tube beam includes a B-pillar front tube beam and a B-pillar rear tube beam, the B-pillar front tube beam and the B-pillar rear tube beam are both connected to the first connecting member, and the B-pillar front tube beam and the B-pillar rear tube beam are arranged in sequence along the extension direction of the A-pillar

[0009] In one embodiment, the semi-solid tubular beam further includes a door ring, a welding hole is formed on the door ring, a boss is fixedly provided on the A-pillar tubular beam, the boss is exposed from the welding hole, and the boss is welded to the door ring.

[0010] In one embodiment, the semi-solid tubular beam further includes a center pillar inner panel, which is located on a side of the B-pillar tubular beam close to the interior of the vehicle body, is fixedly connected to the first connecting member, and is used for installing interior decoration.

[0011] In one embodiment, a seat belt mounting plate is fixedly connected to the inner plate of the center pillar, and the seat belt mounting plate is used to install the seat belt.

[0012] In one embodiment, a second connecting member is fixedly provided on the A-pillar tube beam, and the second connecting member is used for installing a handle.

[0013] In one embodiment, the A-pillar tube beam is provided with a first rivet hole, the second connecting member is provided with a second rivet hole, the second rivet holes are each provided with a first rivet nut, the end of the first rivet nut passes through the first rivet hole, and the first rivet nut is threadedly connected to a first mounting bolt.

[0014] The present invention also proposes a vehicle body structure, including a semi-solid tubular beam, including: an A-pillar tubular beam, a B-pillar tubular beam and a first connecting member, wherein the first connecting member is arranged along the extension direction of the B-pillar tubular beam, the outer side of the B-pillar tubular beam has a first connecting surface arranged along the extension direction of the B-pillar tubular beam, the first connecting surface of the B-pillar tubular beam is fixedly connected to the first connecting member, the A-pillar tubular beam has a second connecting surface arranged along the extension direction of the A-pillar tubular beam, and the second connecting surface of the A-pillar tubular beam is fixedly connected to the first connecting member.

[0015] The technical solution of the present invention increases the connection area between the B-pillar tube beam and the first connecting piece by connecting the first connecting surface to the B-pillar tube beam, thereby ensuring the connection strength between the B-pillar tube beam and the first connecting piece, so that the first connecting piece supports and reinforces the B-pillar tube beam along the extension direction of the B-pillar tube beam, and enhances the strength of the side of the B-pillar tube beam; the second connecting surface increases the connection area between the first connecting piece and the A-pillar tube beam, which can ensure the connection strength between the A-pillar tube beam and the first connecting piece bracket, and further ensures the connection strength between the A-pillar tube beam and the B-pillar tube beam; the A-pillar tube beam and the B-pillar tube beam are reinforced and connected by the first connecting piece, which improves the problem of low lateral structural strength of the automobile body as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 A schematic structural diagram of an embodiment of a semi-solid tubular beam provided by the present invention;

[0018] Figure 2 A schematic diagram of the explosion structure of another embodiment of the semi-solid tubular beam provided by the present invention;

[0019] Figure 3 for Figure 2 Schematic diagram of the structure after connection;

[0020] Figure 4 For along Figure 3 The partial cross-sectional view made by AA in the figure;

[0021] Figure 5 For along Figure 3 The partial cross-sectional view made by BB in the middle;

[0022] Figure 6 For along Figure 3 Partial cross-sectional view made by CC in the middle;

[0023] Figure 7 For along Figure 3 The partial cross-sectional view made by DD in the figure;

[0024] Figure 8 For along Figure 3 The partial cross-sectional view made by EE in the figure;

[0025] Fig. 9 For along Figure 3 Partial cross-sectional view made by FF.

[0026] Description of Figure Numbers:

[0027] 1. A-pillar tube beam; 11. Boss; 12. First rivet hole; 13. Top cover front cross beam connector; 14. Reinforcement plate; 2. B-pillar tube beam; 21. B-pillar front tube beam; 22. B-pillar rear tube beam; 3. First connector; 31. Structural hole; 32. Mounting ring; 4. Door knocker; 41. Welding hole; 5. Middle pillar inner plate; 51. Safety belt mounting plate; 52. Rivet; 53. Middle pillar inner plate; 6. Second connector; 61. Fixing groove; 62. Second rivet hole; 621. First rivet nut; 622. First mounting bolt; 63. Fixing plate; 631. Third rivet hole; 632. Second rivet nut; 622. Second mounting bolt; 7. Sunroof reinforcement ring connecting plate; 71. Third rivet nut; 72. Third mounting bolt; 8. A-pillar inner plate.

[0028] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] With the development of the automobile industry, automobile safety and lightweight have become two important concerns in today's automobile design. As key components in the automobile body structure, the A-pillar and the B-pillar play an important role in side collisions. The strength of the A-pillar and the B-pillar is related to the safety performance of the automobile. In common automobile bodies, in order to meet the requirements of lightweight automobiles, in the design of automobile bodies, the A-pillar and the B-pillar often adopt a single tubular structure, such as a high-strength steel pipe, and the A-pillar and the B-pillar are fixedly connected, but this causes the problem of low lateral structural strength of the automobile body.

[0033] The invention provides a semi-solid tube beam.

[0034] See also Figure 1In one embodiment of the present invention, the semi-solid tube beam includes an A-pillar tube beam 1, a B-pillar tube beam 2 and a first connecting member 3, wherein the first connecting member 3 is arranged along the extension direction of the B-pillar tube beam 2, the outer side of the B-pillar tube beam 2 has a first connecting surface arranged along the extension direction of the B-pillar tube beam 2, the first connecting surface of the B-pillar tube beam 2 is fixedly connected to the first connecting member 3, the A-pillar tube beam 1 has a second connecting surface arranged along the extension direction of the A-pillar tube beam 1, and the second connecting surface of the A-pillar tube beam 1 is fixedly connected to the first connecting member 3.

[0035] The technical solution of the present invention increases the connection area between the B-pillar tube beam 2 and the first connecting member 3 by connecting the first connecting surface to the B-pillar tube beam 2, thereby ensuring the connection strength between the B-pillar tube beam 2 and the first connecting member 3, so that the first connecting member 3 supports and reinforces the B-pillar tube beam 2 along the extension direction of the B-pillar tube beam 2, and enhances the strength of the side of the B-pillar tube beam 2; the second connecting surface increases the connection area between the first connecting member 3 and the A-pillar tube beam 1, which can ensure the connection strength between the A-pillar tube beam 1 and the first connecting member 3 bracket, and further ensures the connection strength between the A-pillar tube beam 1 and the B-pillar tube beam 2; the first connecting member 3 can reinforce the connection between the A-pillar tube beam 1 and the B-pillar tube beam 2, enhance the side collision and anti-rollover capabilities of the entire vehicle, and overall improve the problem of low lateral structural strength of the automobile body.

[0036] See also Figure 1 The first connecting member 3 is a metal cast plate. The metal cast plate has high strength. By reinforcing the B-pillar tube beam 2 with the metal cast plate, the structural strength of the side of the vehicle body can be effectively improved.

[0037] In some traditional car bodies, steel plate stampings are used as the B-pillars of the car body. The stamping process causes great deformation to the steel plate, and the steel plate stamping method is easy to destroy the internal connection of the steel plate, even causing structural damage inside the steel plate, reducing the structural strength of the steel plate; the B-pillar is a lateral force-bearing support column of the car body, and the structural strength of the B-pillar needs to be guaranteed. Correspondingly, in order to ensure the structural strength of the steel plate stamping parts, a large margin will be left in the design of the steel plate size to ensure the strength of the steel plate after stamping, that is, the volume of the steel plate will increase. Due to the high density of the steel plate, the weight of the steel plate stamping parts will be large, which significantly increases the weight of the car body.

[0038] The metal cast plate is used as an auxiliary reinforcement to reinforce the A-pillar tube beam 1 and the B-pillar tube beam 2. The processing method of the metal cast plate reduces the deformation and structural damage of the metal cast plate during the processing, and can ensure the structural strength of the metal cast plate. The processing method of the metal cast plate allows the metal cast plate to have more processable shapes. When designing the metal cast plate, a shape with higher strength can be processed according to demand. The metal cast plate assists in reinforcing the B-pillar tube beam 2, reducing the strength requirements of the metal cast plate. While ensuring the strength of the vehicle body, the metal cast plate and the B-pillar tube beam 2 further reduce the requirements for the size of the metal cast plate. When the side strength of the vehicle body is improved, the increase in vehicle body weight is small.

[0039] The metal casting plate can be made of some alloys with lower density. Specifically, the metal casting plate is preferably an aluminum alloy plate. Specifically, the material of the metal casting plate is 6061-T6 EQCL-75 (an aluminum-magnesium alloy). The aluminum alloy plate has a lower density and higher strength, which improves the lateral strength of the vehicle body while reducing the increase in the weight of the vehicle body.

[0040] See also Figure 1 , Figure 2 and Figure 3 The B-pillar tube beam 2 includes a B-pillar front tube beam 21 and a B-pillar rear tube beam 22, both of which are connected to the first connecting member 3, and are arranged in sequence along the extension direction of the A-pillar. The B-pillar front tube beam 21 and the B-pillar rear tube beam 22 cooperate with each other to further ensure the structural strength of the B-pillar tube beam 2.

[0041] The outer side of the first connecting member 3 is integrally cast with a plurality of structural holes 31. When casting the first connecting member 3, selecting appropriate structural holes 31 can reduce the decrease in the strength of the first connecting member 3 and significantly reduce the weight of the first connecting member 3. The plurality of structural holes 31 reduce the weight of the first connecting member 3 and ultimately reduce the weight of the entire vehicle.

[0042] The A-pillar tube beam 1, the B-pillar front tube beam 21 and the B-pillar rear tube beam 22 are all high-strength steel pipes, which ensure the structural strength of the A-pillar tube beam 1, the B-pillar front tube beam 21 and the B-pillar rear tube beam 22. Specifically, the material of the A-pillar tube beam 1, the B-pillar front tube beam 21 and the B-pillar rear tube beam 22 is D1800HF+AS(15 / 15)t1.8EQL-114. Under the same size of materials, the B-pillar tube beam 2 is designed as the B-pillar front tube beam 21 and the B-pillar rear tube beam 22, which can improve the structural strength of the B-pillar tube beam 2.

[0043] The A-pillar tube beam 1, the B-pillar front tube beam 21 and the B-pillar rear tube beam 22 are all installed in the first connecting member 3 by embedding. The processing method of the first connecting member 3 facilitates the processing of the embedding groove on the first connecting member 3 when processing the first connecting member 3. By partially embedding and installing the A-pillar tube beam 1, the B-pillar front tube beam 21 and the B-pillar rear tube beam 22 in the embedding groove, the A-pillar tube beam 1, the B-pillar front tube beam 21 and the B-pillar rear tube beam 22 on the first connecting member 3 are fixedly installed, and the connection area between the first connecting member 3 and the A-pillar tube beam 1, the B-pillar front tube beam 21 and the B-pillar rear tube beam 22 is increased. The A-pillar tube beam 1, the B-pillar front tube beam 21 and the B-pillar rear tube beam 22 can also be welded to the first connecting member 3.

[0044] The A-pillar tube beam 1 is located on the upper side of the B-pillar tube beam 2, so that the A-pillar tube beam 1 is embedded and connected with the upper end of the first connecting member 3; and both ends of the A-pillar tube beam 1 are exposed from the first connecting member 3. When the rear side of the B-pillar tube beam 2 is subjected to a lateral impact, the A-pillar tube beam 1 can transmit part of the force to the first connecting member 3 and the B-pillar tube beam 2; and the lateral support of the B-pillar tube beam 2 to its rear side can be ensured.

[0045] See also Figure 3 , Figure 4 and Figure 5 Two mounting rings 32 are integrally cast on the first connecting member 3. The mounting rings 32 are located at the lower end of the first connecting member 3. The two mounting rings 32 correspond to the B-pillar front tube beam 21 and the B-pillar rear tube beam 22 respectively. The B-pillar front tube beam 21 and the B-pillar rear tube beam 22 are respectively embedded in the corresponding mounting rings 32, and the B-pillar front tube beam 21 and the B-pillar rear tube beam 22 are respectively interference fit with the corresponding mounting rings 32. The mounting rings 32 enhance the connection strength of the B-pillar front tube beam 21 and the B-pillar rear tube beam 22 on the first connecting member 3. When the vehicle body is impacted, the mounting rings 32 can limit the B-pillar front tube beam 21 and the B-pillar rear tube beam 22 from coming off the first connecting member 3, thereby ensuring the coordination and reinforcement between the first connecting member 3, the B-pillar front tube beam 21 and the B-pillar rear tube beam 22, thereby enhancing the lateral structural strength of the vehicle body.

[0046] Specifically, a plurality of mounting rings 32 are provided at a time along the height direction of the first connecting member 3 , and the B-pillar front tube beam 21 and the B-pillar rear tube beam 22 can be firmly fixed on the first connecting member 3 .

[0047] See also Figure 2 , Figure 3 and Figure 6The semi-solid tube beam also includes a door ring 4, which can be used for door installation, and the door ring 4 is a sheet metal part, and a welding hole 41 is opened on the door ring 4. A boss 11 is fixedly provided on the A-pillar tube beam 1, and the boss 11 can be cast integrally with the A-pillar tube beam 1. The boss 11 is exposed from the welding hole 41. Specifically, the boss 11 and the door ring 4 have an interference fit, and the boss 11 and the door ring 4 form an arc welding point. The door ring 4 and the A-pillar tube beam 1 are connected by arc welding, which increases the area of ​​the arc welding connection between the A-pillar tube beam 1 and the door ring 4, and ensures the strength of the connection between the door ring 4 and the A-pillar tube beam 1. The door ring 4 can support and reinforce the A-pillar tube beam 1.

[0048] Furthermore, the boss 11 can extend along the length direction of the A-pillar tube beam 1, and the welding hole 41 is a strip hole extending along the A-pillar tube beam 1, which can further increase the area of ​​the arc welding connection between the A-pillar tube beam 1 and the door ring 4, thereby further enhancing the strength of the welding between the door ring 4 and the A-pillar tube beam 1.

[0049] See also Figure 3 , Figure 4 and Figure 5 The semi-solid tube beam also includes a middle pillar inner panel 5, which is located on the side of the B-pillar tube beam 2 close to the inside of the vehicle body, and is fixedly connected to the first connecting member 3, and is used to install interior decoration. The middle pillar inner panel 5 is located on the side of the first connecting member 3 close to the inside of the vehicle body, and the B-pillar front tube beam 21 and the B-pillar rear tube beam 22 are located on the outside of the middle pillar vertical panel. The middle pillar vertical panel protects the B-pillar front tube beam 21 and the B-pillar rear tube beam 22 from the inside, and provides an installation panel for the decoration inside the vehicle body.

[0050] A seat belt mounting plate 51 is fixedly connected to the center pillar inner plate 5 , and the seat belt mounting plate 51 is used to install the seat belt, which can facilitate the subsequent installation of the seat belt.

[0051] The extension direction of the middle pillar inner plate 5 is consistent with that of the first connecting member 3, that is, the height direction of the middle pillar inner plate 5 is the extension direction of the middle pillar inner plate 5, and the outer side of the middle pillar inner plate 5 abuts against the inner side of the middle pillar inner plate 5, and the door ring 4 abuts against the outer side of the first connecting member 3. A plurality of rivets 52 are respectively arranged on both sides of the middle pillar inner plate 5, and the plurality of rivets 52 are sequentially arranged along the height direction of the middle pillar inner plate 5. In the lower area of ​​the middle pillar inner plate 5, the rivet 52 sequentially passes through the middle pillar inner plate 5, the first connecting member 3 and the door ring 4, and the rivet 52 can ensure the strength of the connection between the middle pillar inner plate 5, the first connecting member 3 and the door ring 4. The safety belt mounting plate 51 is located in the upper area of ​​the middle pillar vertical plate, and the rivet 52 sequentially passes through the middle pillar inner plate 5, the safety belt mounting plate 51 and the first connecting member 3, and the safety belt mounting plate 51 is firmly fixed to the middle pillar inner plate 5 by the rivet 52, which can ensure the firmness of the safety belt.

[0052] See also Figure 2 and Figure 3 , a second connector 6 is fixedly provided on the A-pillar tube beam 1, and the second connector 6 is used to install a handle. The second connector 6 is an aluminum alloy casting, which can ensure the structural strength of the second connector 6. The second connector 6 extends along the length direction of the A-pillar tube beam 1, and the second connector 6 is located at the front side of the B-pillar front tube beam 21. The second connector 6 is a sunroof reinforcement ring connecting plate 7, which can be installed for some interior decorations. In some off-road vehicles, there is often a demand for outdoor driving. When driving in the wild, especially when it involves uphill and downhill roads, the body of the vehicle is prone to shaking, and the passengers are prone to collide with the interior of the body. By holding the handle, the passengers can adjust their own shaking, reduce the collision between the passengers and the interior of the body, thereby improving the riding stability and riding experience.

[0053] The second connecting member 6 has a fixing groove 61 adapted to the A-pillar tube beam 1 , and the A-pillar tube beam 1 is installed in the fixing groove 61 of the second connecting member 6 by embedding, thereby ensuring the connection strength between the A-pillar tube beam 1 and the second connecting member 6 .

[0054] An A-pillar inner plate 8 is provided on the A-pillar tube beam 1, and the edge of the door ring 4 is welded to the edge of the A-pillar inner plate 8, thereby ensuring the connection strength between the door ring 4 and the A-pillar inner plate 8, and an accommodating cavity is formed between the door ring 4 and the A-pillar inner plate 8, and the A-pillar tube beam 1 is located in the accommodating cavity, and part of the second connecting member 6 is located in the accommodating cavity, so as to cover and protect the A-pillar tube beam 1.

[0055] See also Figure 3 , Figure 7 and Figure 8 The A-pillar tube beam 1 is provided with a first rivet hole 12, the second connecting member 6 is provided with a second rivet hole 62, the second rivet hole 62 is provided with a first rivet nut 621, the end of the first rivet nut 621 passes through the first rivet hole 12 and the A-pillar inner plate 8, and the first rivet nut 621 is internally threaded with a first mounting bolt 622. After the first mounting bolt 622 is screwed into the first rivet nut 621, the mounting bolt is tightened, and the first rivet nut 621 can firmly connect the second connecting member 6 and the A-pillar tube beam 1 together, thereby fixing the A-pillar inner plate 8.

[0056] Multiple first mounting bolts 622 and first rivet nuts 621 are sequentially arranged along the length direction of the A-pillar tube beam 1. Multiple first rivet nuts 621 and multiple first mounting bolts 622 cooperate with each other to further strengthen the connection between the second connecting member 6 and the A-pillar tube beam 1.

[0057] A fixing plate 63 is provided on one side of the second connecting member 6 close to the inside of the vehicle body, and a third rivet hole 631 is opened on the fixing plate 63. A second rivet nut 632 is passed through the third rivet hole 631, and a second mounting bolt 622 is inserted into the second rivet nut 632. With the help of the second rivet nut 632 and the second rivet nut 632, the handle can be directly fixed on the second connecting member 6, thereby ensuring the installation strength of the handle; the front armrest bracket is eliminated, which can reduce the number of parts of the whole vehicle, thereby reducing the weight of the whole vehicle.

[0058] The A-pillar tube beam 1 is also provided with a roof front cross beam connector 13, which is located between the second connector 6 and the B-pillar front tube beam 21. The roof front cross beam connector 13 is an aluminum-magnesium alloy. Specifically, the material of the roof front cross beam connector 13 is 6061-T6EQCL-75. The roof front cross beam connector 13 is cast as a whole with the A-pillar tube beam 1 through a casting process, thereby ensuring the connection strength between the roof front cross beam connector 13 and the A-pillar tube beam 1; optionally, the A-pillar tube beam 1 can also be embedded in the roof front cross beam connector 13.

[0059] A reinforcing plate 14 is fixedly connected to the A-pillar, and a middle pillar inner plate 53 is integrally connected to the upper side of the middle pillar inner plate 5. The reinforcing plate 14 and the middle pillar inner plate 53 are both located on the side of the B-pillar rear tube beam 22 away from the B-pillar front tube beam 21. The reinforcing plate 14 and the middle pillar inner plate 53 are abutted against and welded, and the middle pillar inner plate 53 is located on the inner side of the reinforcing plate 14 close to the vehicle body. A gap is formed between the reinforcing plate 14 and the middle pillar inner plate 53 for accommodating the A-pillar tube beam 1, so that the A-pillar tube beam 1 is located between the reinforcing plate 14 and the middle pillar inner plate 53, and the reinforcing plate 14 and the middle pillar inner plate 53 can support and protect the A-pillar tube beam 1.

[0060] See also Figure 3 and Fig. 9 The semi-solid tubular beam also includes a skylight reinforcement ring connecting plate 7, on which a third rivet nut 71 is passed, which passes through the middle pillar inner plate 5, and a third mounting bolt 72 is arranged in the third rivet nut 71. After tightening the third mounting bolt 72, the third mounting bolt 72 and the third rivet nut 71 cooperate to fix the skylight reinforcement ring connecting plate 7 on the middle pillar inner plate 5; the fastening installation of the skylight reinforcement ring connecting plate 7 is realized, thereby providing a solid installation foundation for the installation of the skylight.

[0061] A plurality of third rivet nuts 71 are provided, and the cooperation of the plurality of third rivet nuts 71 can enhance the connection strength between the sunroof reinforcement ring connecting plate 7 and the pillar inner plate.

[0062] A wire thread sleeve is embedded in the first connecting member 3, which is convenient for installing the hinge and eliminates the hinge reinforcement plate 14 in the traditional structure, thereby reducing the number of vehicle parts and the weight of the vehicle.

[0063] The present invention also proposes a vehicle body structure, which includes A and a semi-solid tubular beam. The specific structure of the semi-solid tubular beam refers to the above-mentioned embodiment. Since the vehicle body structure adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0064] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A semi-solid tubular beam, characterized in that: The invention comprises an A-pillar tube beam, a B-pillar tube beam and a first connecting member, wherein the first connecting member is arranged along the extension direction of the B-pillar tube beam, the outer side of the B-pillar tube beam has a first connecting surface arranged along the extension direction of the B-pillar tube beam, the first connecting surface of the B-pillar tube beam is fixedly connected to the first connecting member, the A-pillar tube beam has a second connecting surface arranged along the extension direction of the A-pillar tube beam, and the second connecting surface of the A-pillar tube beam is fixedly connected to the first connecting member.

2. The semi-solid tubular beam according to claim 1, characterized in that: The first connecting member is a metal cast plate.

3. The semi-solid tubular beam according to claim 2, characterized in that: The metal cast plate is an aluminum alloy plate.

4. The semi-solid tubular beam according to claim 1, characterized in that: The B-pillar tube beam includes a B-pillar front tube beam and a B-pillar rear tube beam, the B-pillar front tube beam and the B-pillar rear tube beam are both connected to the first connecting member, and the B-pillar front tube beam and the B-pillar rear tube beam are arranged in sequence along the extension direction of the A-pillar.

5. The semi-solid tubular beam according to claim 1, characterized in that: The semi-solid tube beam also includes a door ring, a welding hole is opened on the door ring, a boss is fixedly arranged on the A-pillar tube beam, the boss is exposed from the welding hole, and the boss is welded to the door ring.

6. The semi-solid tubular beam according to claim 1, characterized in that: The semi-solid tubular beam also includes a middle pillar inner panel, which is located on a side of the B-pillar tubular beam close to the interior of the vehicle body, is fixedly connected to the first connecting piece, and is used for installing interior decoration.

7. The semi-solid tubular beam according to claim 6, characterized in that: A safety belt mounting plate is fixedly connected to the inner plate of the middle pillar, and the safety belt mounting plate is used for mounting a safety belt.

8. The semi-solid tubular beam according to claim 1, characterized in that: A second connecting member is fixedly arranged on the A-pillar tube beam, and the second connecting member is used for installing a handle.

9. The semi-solid tubular beam according to claim 8, characterized in that: The A-pillar tube beam is provided with a first rivet hole, the second connecting member is provided with a second rivet hole, the second rivet holes are each provided with a first rivet nut, the end of the first rivet nut passes through the first rivet hole, and the first rivet nut is threadedly connected with a first mounting bolt.

10. A vehicle body structure, characterized in that: Comprising the semi-solid tubular beam as claimed in any one of claims 1 to 9.

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