Door ring and vehicle

Abstract

The utility model discloses a door ring and a vehicle, the door ring comprises a column A upper section reinforcing plate, a column A lower section reinforcing plate, a column B upper section reinforcing plate, a column B middle section reinforcing plate, a column B lower section reinforcing plate and a doorsill beam reinforcing plate which are structural members integrally punched and formed after tailored blank laser welding, and a first welding seam exists between the doorsill beam reinforcing plate and the column A lower section reinforcing plate; a structural adhesive reinforcing piece is arranged at the lower end of the A column lower section reinforcing plate, and the first welding parting joints are arranged on the rear side of the structural adhesive reinforcing piece at intervals. Therefore, when the door ring is collided, the collision force is firstly transmitted to the structural adhesive reinforcer, then is buffered and absorbed by the structural adhesive reinforcer, and then is transmitted to the first welding seam, so that the collision energy absorption effect of the doorsill beam reinforcing plate can be improved, and when the collision force is small, the door ring is prevented from being damaged. And the connection stability of the doorsill beam reinforcing plate and the A column lower section reinforcing plate cannot be influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a door knocker and a vehicle. Background Art

[0002] With the development of science and technology and the improvement of users' living standards, vehicles have become an indispensable means of transportation for people. Vehicles are equipped with doors, which provide a way for drivers and passengers to enter and leave the vehicle. Doors can also isolate interference from outside the vehicle and reduce side impacts to a certain extent to protect passengers.

[0003] In the related art, the door rings of some vehicle doors are composed of multiple reinforcement plates that are spot-welded together. The relative position between the structural reinforcements and the welding seams on the door ring plates is unreasonable, which not only causes the structural reinforcements to fail to fully play their structural reinforcement role, but also makes the welding seam structure unstable and may damage the structural reinforcements when the plates are welded. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a door ring, the structural adhesive reinforcement of the door ring is arranged at a reasonable position, and the effect of structural reinforcement can be fully exerted.

[0005] The utility model further provides a vehicle.

[0006] According to the door knocker of the utility model, it comprises: an A-pillar reinforcement plate, the A-pillar reinforcement plate comprises: an A-pillar upper reinforcement plate and an A-pillar lower reinforcement plate, the A-pillar lower reinforcement plate is connected to the bottom of the A-pillar upper reinforcement plate; a B-pillar reinforcement plate, the B-pillar reinforcement plate comprises a B-pillar upper reinforcement plate, a B-pillar middle reinforcement plate and a B-pillar lower reinforcement plate, the B-pillar upper reinforcement plate is connected to the rear side of the A-pillar upper reinforcement plate, the B-pillar middle reinforcement plate is connected to the lower side of the B-pillar upper reinforcement plate, and the B-pillar lower reinforcement plate is connected to the lower side of the B-pillar middle reinforcement plate; a sill beam reinforcement plate, the sill beam reinforcement plate is connected between the B-pillar lower reinforcement plate and the A-pillar lower reinforcement plate; a first welding seam is provided between the sill beam reinforcement plate and the A-pillar lower reinforcement plate, a structural adhesive reinforcement is provided at the lower end of the A-pillar lower reinforcement plate, and the first welding seam is arranged at intervals on the rear side of the structural adhesive reinforcement.

[0007] Therefore, when the door ring is hit, the impact force is first transmitted to the structural adhesive reinforcement, and then after the buffering and energy absorption of the structural adhesive reinforcement, the force is transmitted to the first welding seam. This not only improves the collision energy absorption effect of the sill beam reinforcement plate, but also does not affect the connection stability between the sill beam reinforcement plate and the A-pillar lower reinforcement plate when the collision force is small.

[0008] In some examples of the present invention, the distance between the first welding seam and the structural adhesive reinforcement is L1, and L1 satisfies the relationship: 43mm≤L1≤71mm.

[0009] In some examples of the present utility model, there is a second welding seam between the A-pillar upper reinforcement plate and the B-pillar upper reinforcement plate, there is a third welding seam between the sill beam reinforcement plate and the B-pillar lower reinforcement plate, there is a fourth welding seam between the B-pillar upper reinforcement plate and the B-pillar middle reinforcement plate, there is a fifth welding seam between the B-pillar middle reinforcement plate and the B-pillar lower reinforcement plate, and there is a sixth welding seam between the A-pillar upper reinforcement plate and the A-pillar lower reinforcement plate; the second welding seam, the third welding seam and the first welding seam extend in the up-down direction, and the second welding seam and the third welding seam are on the same straight line in the up-down direction.

[0010] In some examples of the present invention, a liquid leakage hole is provided at the lower end of the A-pillar lower reinforcement plate, and the first welding seam is arranged at the rear side of the liquid hole and the distance between the first welding seam and the liquid hole is L2, and L2 satisfies the relationship: 10mm≤L2≤38mm.

[0011] In some examples of the present invention, the thicknesses of the A-pillar upper reinforcement plate, the A-pillar lower reinforcement plate, the B-pillar upper reinforcement plate, the B-pillar middle reinforcement plate, the B-pillar lower reinforcement plate and the sill beam reinforcement plate are not exactly the same, and the A-pillar upper reinforcement plate, the A-pillar lower reinforcement plate, the B-pillar upper reinforcement plate, the B-pillar middle reinforcement plate, the B-pillar lower reinforcement plate and the sill beam reinforcement plate are structural parts that are integrally stamped after laser welding.

[0012] In some examples of the present invention, the thickness of the upper reinforcement plate of the A-pillar and the upper reinforcement plate of the B-pillar are both a, the thickness of the middle reinforcement plate of the B-pillar is b, the thickness of the lower reinforcement plate of the A-pillar is c, the thickness of the lower reinforcement plate of the B-pillar is d, and the thickness of the sill beam reinforcement plate is e. a, b, c, d and e satisfy the relationship: b>a>c>d>e, and b and e satisfy the relationship: e / b>0.5.

[0013] In some examples of the present invention, the hardness of the A-pillar upper reinforcement plate, the B-pillar upper reinforcement plate, the B-pillar middle reinforcement plate and the sill beam reinforcement plate are the same and are all D1, the hardness of the A-pillar lower reinforcement plate and the B-pillar lower reinforcement plate are the same and are all D2, and D1 and D2 satisfy the relationship: D1>D2.

[0014] In some examples of the present invention, the door knocker also includes a patch reinforcement plate, the patch reinforcement plate includes a first plate segment and a second plate segment, the first plate segment is arranged on the inner side of the A-pillar upper reinforcement plate, the second plate segment is arranged on the inner side of the B-pillar upper reinforcement plate, the first plate segment and the second plate segment are one-piece molded structural parts, the thickness of the patch plate is f, the hardness of the patch plate is D3, f and D3 satisfy the relationship: f>e, D3>D1.

[0015] In some examples of the present invention, the door ring also includes an A-pillar inner plate, which is arranged on the inner side of the A-pillar upper reinforcement plate and extends at least partially to the B-pillar upper reinforcement plate, and the patch reinforcement plate is located between the A-pillar upper reinforcement plate and the A-pillar inner plate, and one end of the patch reinforcement plate adjacent to the B-pillar upper reinforcement plate at least partially extends out of the A-pillar inner plate.

[0016] A vehicle according to an embodiment of the utility model includes: the door knocker described above.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic diagram of a door knocker according to an embodiment of the utility model;

[0020] Figure 2 is a schematic diagram of a door knocker according to an embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of a door knocker according to an embodiment of the utility model.

[0022] Reference numerals:

[0023] 100. Door knocker;

[0024] 10. A-pillar reinforcement plate; 101. A-pillar upper reinforcement plate; 102. A-pillar lower reinforcement plate; 103. A-pillar inner plate; 104. Structural adhesive reinforcement member; 105. Leakage hole;

[0025] 20. B-pillar reinforcement plate; 201. B-pillar upper reinforcement plate; 202. B-pillar middle reinforcement plate; 203. B-pillar lower reinforcement plate;

[0026] 30. Threshold beam reinforcement plate;

[0027] 40. patch reinforcement plate; 41. first plate section; 42. second plate section;

[0028] 50. Welding seam; 501. Second welding seam; 502. Third welding seam; 503. First welding seam; 504. Fourth welding seam; 505. Fifth welding seam; 506. Sixth welding seam. DETAILED DESCRIPTION

[0029] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0030] Reference below Figure 1-Figure 3 The door knocker 100 according to the embodiment of the present invention is described, and the door knocker 100 can be applied to a vehicle.

[0031] Combination Figure 1-Figure 3 As shown, the door knocker 100 according to the utility model can mainly include: an A-pillar reinforcement plate 10, a B-pillar reinforcement plate 20 and a threshold beam reinforcement plate 30. Among them, the A-pillar reinforcement plate 10 includes: an A-pillar upper section reinforcement plate 101 and an A-pillar lower section reinforcement plate 102. The A-pillar upper section reinforcement plate 101 mainly plays a role in improving the structural strength, and can be used to improve the strength of the A-pillar upper section. The A-pillar lower section reinforcement plate 102 mainly plays a role in improving the structural strength, and can be used to improve the strength of the A-pillar lower section. The A-pillar lower section reinforcement plate 102 is fixedly connected to the bottom of the A-pillar upper section reinforcement plate 101, so that the connection between the A-pillar upper section reinforcement plate 101 and the A-pillar lower section reinforcement plate 102 can be more stable, thereby making the structure of the door knocker 100 more stable.

[0032] The B-pillar reinforcement plate 20 includes: a B-pillar upper reinforcement plate 201, a B-pillar middle reinforcement plate 202 and a B-pillar lower reinforcement plate 203. The reinforcement plate mainly plays the role of improving the structural strength, and can improve the strength of each part. The B-pillar upper reinforcement plate 201 is fixedly connected to the rear side of the A-pillar upper reinforcement plate 101, so that the connection between the B-pillar upper reinforcement plate 201 and the A-pillar upper reinforcement plate 101 can be more stable. The B-pillar middle reinforcement plate 202 is fixedly connected to the lower side of the B-pillar upper reinforcement plate 201, and the B-pillar lower reinforcement plate 203 is fixedly connected to the lower side of the B-pillar middle reinforcement plate 202, so that the structure of the B-pillar reinforcement plate 20 can be more stable.

[0033] The sill beam reinforcement plate 30 is fixedly connected between the B-pillar lower reinforcement plate 203 and the A-pillar lower reinforcement plate 102, which can improve the strength of the sill beam part and make the connection between the B-pillar lower reinforcement plate 203, the A-pillar lower reinforcement plate 102 and the sill beam reinforcement plate 30 more stable.

[0034] Combination Figure 1 and Figure 3As shown, there is a first welding seam 503 between the sill beam reinforcement plate 30 and the A-pillar lower reinforcement plate 102, and a structural adhesive reinforcement 104 is provided at the lower end of the A-pillar lower reinforcement plate 102. The first welding seam 503 is arranged at intervals on the rear side of the structural adhesive reinforcement 104. When the door ring 100 is hit, the impact force is first transmitted to the structural adhesive reinforcement 104, and then after the structural adhesive reinforcement 104 buffers and absorbs energy, the force is transmitted to the first welding seam 503. This can not only improve the collision energy absorption effect of the sill beam reinforcement plate 30 when the impact force is large, but also better protect the driver and passengers in the vehicle. Moreover, when the impact force is small, the structural adhesive reinforcement 104 can first absorb most of the impact force, so that the impact force has less influence on the stability of the first welding seam 503 between the sill beam reinforcement plate 30 and the A-pillar lower reinforcement plate 102. This can improve the structural performance of the door ring 100 and optimize the structural design of the door ring 100.

[0035] Combination Figure 1 and Figure 3 As shown, the distance between the first welding seam 503 and the structural adhesive reinforcement 104 is L1, and L1 satisfies the relationship: 43mm≤L1≤71mm. Specifically, the X-axis coordinate of the first welding seam 503 is greater than the X-axis coordinate of the structural adhesive reinforcement 104, that is, the first welding seam 503 is closer to the rear of the vehicle than the structural adhesive reinforcement 104, and the distance between the first welding seam 503 and the structural adhesive reinforcement 104 is required to be: 43mm≤L1≤71mm, so that the distance L1 between the first welding seam 503 between the sill beam reinforcement plate 30 and the A-pillar lower reinforcement plate 102 and the structural adhesive reinforcement 104 is within a reasonable range, which can not only prevent the distance L1 from being too close, but also prevent the connection between the sill beam reinforcement plate 30 and the A-pillar lower reinforcement plate 102 from affecting the structure. The structure of the structural adhesive reinforcement 104 is stable and can also prevent the distance L1 from being too far. The structural reinforcement effect of the structural adhesive reinforcement 104 on the first welding seam 503 is poor, which can meet the rationality of the structure and subsequent needs, and the area of ​​the A-pillar lower reinforcement plate 102 is a collision energy absorption area, so the designed sheet metal strength is relatively small. On the premise of ensuring that the first welding seam 503 will not damage the structure of the structural adhesive reinforcement 104, the A-pillar lower reinforcement plate 102 can cooperate with the structural adhesive reinforcement 104 with good energy absorption characteristics, which can meet the safety performance requirements of small offset collisions and improve the safety performance of the vehicle.

[0036] Combination Figure 1-Figure 3As shown, the thicknesses of the A-pillar upper reinforcement plate 101, the A-pillar lower reinforcement plate 102, the B-pillar upper reinforcement plate 201, the B-pillar middle reinforcement plate 202, the B-pillar lower reinforcement plate 203 and the sill beam reinforcement plate 30 are not completely the same. Thick plates are arranged in areas with greater stress to improve the structural strength of the area, and thin plates are arranged in areas with less stress. While meeting the performance requirements, the weight reduction requirements of the side panel reinforcement plate structure are achieved, and unnecessary waste of material performance can be avoided.

[0037] In some embodiments of the present invention, the A-pillar upper reinforcement plate 101, the A-pillar lower reinforcement plate 102, the B-pillar upper reinforcement plate 201, the B-pillar middle reinforcement plate 202, the B-pillar lower reinforcement plate 203 and the door sill beam reinforcement plate 30 are first laser welded in sequence, and then formed into an integrally formed structural part by integrated stamping and hot forming. With such an arrangement, the door knocker 100 produced can reduce the number of parts and components, reduce the weight of the door knocker 100, and also improve the integrity of the door knocker 100 structure.

[0038] Furthermore, the A-pillar upper reinforcement plate 101, the A-pillar lower reinforcement plate 102, the B-pillar upper reinforcement plate 201, the B-pillar middle reinforcement plate 202, the B-pillar lower reinforcement plate 203 and the door sill beam reinforcement plate 30, which have different thicknesses, are first laser welded together and then stamped and formed as one, thereby forming an integrally formed structural part. Compared with the prior art in which components are directly stamped and formed as one, the embodiments of the utility model can prevent the material performance of the door ring 100 from being excessive and causing unnecessary waste of materials while ensuring better integrity of the door ring 100 and reducing the parts of the door ring 100.

[0039] In addition, laser welding has the advantages of fast welding speed, large depth and small deformation.

[0040] Combination Figure 1 , Figure 2 and Figure 3As shown, the thickness of the A-pillar upper reinforcement plate 101 and the B-pillar upper reinforcement plate 201 are both a, the thickness of the B-pillar middle reinforcement plate 202 is b, the thickness of the A-pillar lower reinforcement plate 102 is c, the thickness of the B-pillar lower reinforcement plate 203 is d, and the thickness of the sill beam reinforcement plate 30 is e. a, b, c, d and e satisfy the relationship: b>a>c>d>e. Specifically, the stress on the middle section reinforcement plate 202 of the B-pillar is the greatest, so the thickness of the middle section reinforcement plate 202 of the B-pillar is the greatest. The stress on the upper section reinforcement plate 101 of the A-pillar and the upper section reinforcement plate 201 of the B-pillar is the same and slightly less than that on the middle section reinforcement plate 202 of the B-pillar. Therefore, the thickness of the upper section reinforcement plate 101 of the A-pillar and the upper section reinforcement plate 201 of the B-pillar should be less than the thickness of the middle section reinforcement plate 202 of the B-pillar, and the stress on the lower section reinforcement plate 102 of the A-pillar will be less than that on the upper section reinforcement plate 101 of the A-pillar and the upper section reinforcement plate 201 of the B-pillar. Therefore, the thickness of the A-pillar lower section reinforcement plate 102 will be smaller than the thickness of the A-pillar upper section reinforcement plate 101 and the B-pillar upper section reinforcement plate 201, the stress borne by the B-pillar lower section reinforcement plate 203 will be smaller than the stress borne by the A-pillar lower section reinforcement plate 102, therefore, the thickness of the B-pillar lower section reinforcement plate 203 will be smaller than the thickness of the A-pillar lower section reinforcement plate 102, the stress borne by the sill beam reinforcement plate 30 will be smaller than the stress borne by the B-pillar lower section reinforcement plate 203, therefore, the thickness of the sill beam reinforcement plate 30 will be smaller than the thickness of the B-pillar lower section reinforcement plate 203.

[0041] With such arrangement, the thickness of each reinforcing plate can be selectively set according to the stress conditions to which it is subjected. While meeting the performance requirements, the strength of each reinforcing plate can be effectively guaranteed, material waste can be effectively avoided, and the weight of the door knocker 100 structure can be reduced.

[0042] In some embodiments of the present invention, b may be 2.1 mm, a may be 1.9 mm, c may be 1.8 mm, d may be 1.6 mm, and e may be 1.4 mm.

[0043] Combination Figure 1 , Figure 2 and Figure 3 As shown, b and e satisfy the relationship: e / b>0.5, specifically, b represents the thickness of the thickest plate, that is, the thickness of the B-pillar middle section reinforcement plate 202, and e represents the thickness of the thinnest plate, that is, the thickness of the door sill beam reinforcement plate 30. The difference in thickness between the thickest plate and the thinnest plate should be controlled within 2:1, that is, e / b>0.5. This can prevent the difference in thickness between the thickest plate and the thinnest plate from being too large, resulting in instability of the overall structure of the door ring 100, and can further improve the overall stability of the door ring 100 structure.

[0044] Combination Figure 1 , Figure 2 and Figure 3As shown, when the thicknesses of two adjacent ones of the A-pillar upper reinforcement plate 101, the A-pillar lower reinforcement plate 102, the B-pillar upper reinforcement plate 201, the B-pillar middle reinforcement plate 202, the B-pillar lower reinforcement plate 203 and the sill beam reinforcement plate 30 are different, the thickness difference between two adjacent ones of the A-pillar upper reinforcement plate 101, the A-pillar lower reinforcement plate 102, the B-pillar upper reinforcement plate 201, the B-pillar middle reinforcement plate 202, the B-pillar lower reinforcement plate 203 and the sill beam reinforcement plate 30 is Q, and Q satisfies the relationship: Q≥0.2mm. Specifically, the thickness settings of the A-pillar upper reinforcement plate 101, the A-pillar lower reinforcement plate 102, the B-pillar upper reinforcement plate 201, the B-pillar middle reinforcement plate 202, the B-pillar lower reinforcement plate 203 and the sill beam reinforcement plate 30 are not exactly the same, and the material thickness difference between two adjacent reinforcement plates is required to be no less than 0.2 mm, so that the two adjacent reinforcement plates can be better connected together, the stability can be improved, and the structural design of the vehicle can be optimized.

[0045] Combination Figure 1 , Figure 2 and Figure 3 As shown, the hardness of the A-pillar upper reinforcement plate 101, the B-pillar upper reinforcement plate 201, the B-pillar middle reinforcement plate 202 and the threshold beam reinforcement plate 30 is the same and is D1, and the hardness of the A-pillar lower reinforcement plate 102 and the B-pillar lower reinforcement plate 203 is the same and is D2, and D1 and D2 satisfy the relationship: D1>D2. Specifically, on the basis that the material thickness of the A-pillar upper reinforcement plate 101, the B-pillar upper reinforcement plate 201, the B-pillar middle reinforcement plate 202 and the threshold beam reinforcement plate 30 is not completely the same, the hardness of the A-pillar upper reinforcement plate 101, the B-pillar upper reinforcement plate 201, the B-pillar middle reinforcement plate 202 and the threshold beam reinforcement plate 30 is also set to be not completely the same according to different positions, so that unnecessary waste of material performance can be further avoided, and the structural reliability of the door ring 100 can be further improved.

[0046] Furthermore, the hardness of the A-pillar upper reinforcement plate 101, the B-pillar upper reinforcement plate 201, the B-pillar middle reinforcement plate 202 and the sill beam reinforcement plate 30 is set to be the same, the hardness of the A-pillar lower reinforcement plate 102 and the B-pillar lower reinforcement plate 203 is set to be the same, and the hardness of the A-pillar upper reinforcement plate 101, the B-pillar upper reinforcement plate 201, the B-pillar middle reinforcement plate 202 and the sill beam reinforcement plate 30 is set to be greater than the hardness of the A-pillar lower reinforcement plate 102 and the B-pillar lower reinforcement plate 203. The middle section reinforcement plate 202 of the pillar and the rocker beam reinforcement plate 30 cannot be excessively deformed when encountering a collision, otherwise they will squeeze the occupants in the vehicle and cause injuries to the occupants in the vehicle. Therefore, the hardness of the A-pillar upper section reinforcement plate 101, the B-pillar upper section reinforcement plate 201, the middle section reinforcement plate 202 of the B-pillar and the rocker beam reinforcement plate 30 needs to be set to a larger value, and the A-pillar lower section reinforcement plate 102 and the B-pillar lower section reinforcement plate 203 need to absorb energy and deform during a collision, thereby buffering the collision. Therefore, the hardness of the A-pillar lower section reinforcement plate 102 and the B-pillar lower section reinforcement plate 203 needs to be set to a smaller value.

[0047] In some embodiments of the present invention, the A-pillar upper reinforcement plate 101, the B-pillar upper reinforcement plate 201, the B-pillar middle reinforcement plate 202 and the sill beam reinforcement plate 30 are made of 1500Mpa material, and the A-pillar lower reinforcement plate 102 and the B-pillar lower reinforcement plate 203 are made of 1000Mpa material.

[0048] Combination Figure 1 , Figure 2 and Figure 3 As shown, there is no overlapping area between two adjacent ones of the A-pillar upper reinforcement plate 101, the A-pillar lower reinforcement plate 102, the B-pillar upper reinforcement plate 201, the B-pillar middle reinforcement plate 202, the B-pillar lower reinforcement plate 203 and the threshold beam reinforcement plate 30. Specifically, the A-pillar upper reinforcement plate 101, the A-pillar lower reinforcement plate 102, the B-pillar upper reinforcement plate 201, the B-pillar middle reinforcement plate 202, the B-pillar lower reinforcement plate 203 and the threshold beam reinforcement plate 30 are connected by laser welding. The laser welding is butt welding, there is no lap joint, and there is no overlapping construction area, which can achieve a certain weight reduction effect, and can also avoid the desoldering and leakage problems of welding points, and can improve the integrity of the parts. In this way, when the door ring 100 is subjected to external impact, the impact force can be better transmitted, thereby improving the safety of the vehicle and better protecting the passengers in the vehicle.

[0049] Combination Figure 1 , Figure 2 and Figure 3As shown, there is a second welding seam 501 between the A-pillar upper reinforcement plate 101 and the B-pillar upper reinforcement plate 201, a third welding seam 502 between the threshold beam reinforcement plate 30 and the B-pillar lower reinforcement plate 203, a fourth welding seam 504 between the B-pillar upper reinforcement plate 201 and the B-pillar middle reinforcement plate 202, a fifth welding seam 505 between the B-pillar middle reinforcement plate 202 and the B-pillar lower reinforcement plate 203, and a sixth welding seam 506 between the A-pillar upper reinforcement plate 101 and the A-pillar lower reinforcement plate 102. Specifically, the welding seams 50 between the reinforcement plates on the door ring 100 are designed as straight line welding, which can ensure the welding effect to a certain extent, and the sheet material is loaded on the assembly line during welding without clamping waiting time, and the idle operation time of the laser is minimized. Compared with the welding efficiency of the curved welding door ring 100, the embodiment of the utility model is so configured that the welding efficiency is improved, which can reduce the manufacturing cost and improve the production efficiency.

[0050] Furthermore, the second welding seam 501, the third welding seam 502 and the first welding seam 503 are extended in the up and down directions, and the second welding seam 501 and the third welding seam 502 are in the same straight line in the up and down directions. Such a design can ensure the rationality of the structure of the door knocker 100 and can meet subsequent installation or use requirements.

[0051] In addition, the sixth welding seam 506 is disposed between the A-pillar upper reinforcement plate 101 and the A-pillar lower reinforcement plate 102 , which is beneficial to improving the sheet metal strength and rigidity of the A-pillar region.

[0052] A leakage hole 105 is provided at the lower end of the A-pillar lower reinforcement plate 102, and the first welding seam 503 is arranged at intervals at the rear side of the leakage hole 105 and the distance between the leakage hole 105 and the leakage hole 105 is L2, and L2 satisfies the relationship: 10mm≤L2≤38mm. Specifically, the leakage hole 105 is also arranged in the lower end area of ​​the A-pillar lower reinforcement plate 102, and is located between the first welding seam 503 and the structural adhesive reinforcement 104, and the distance between the first welding seam 503 and the leakage hole 105 is required to be: 10mm≤L2≤38mm, which can not only meet the design requirements and subsequent use requirements of the door ring 100 structure, but also can be used as a through hole for the electrophoretic liquid to enter and exit the internal cavity of the vehicle body, which is convenient for the circulation of the electrophoretic liquid and enhances the electrophoretic effect.

[0053] In addition, under the premise of meeting safety and process requirements, the distance between the fourth welding seam 504 and the fifth welding seam 505 is shortened as much as possible, and the B-pillar, roof side beam and door sill beam are designed as an "I"-shaped structure as a whole, which can optimize the vehicle's load-bearing design and make the vehicle lightweight.

[0054] Combination Figure 1 and Figure 3As shown, the door knocker 100 also includes a patch reinforcement plate 40, which includes a first plate segment 41 and a second plate segment 42. The first plate segment 41 is arranged on the inner side of the A-pillar upper reinforcement plate 101, and the second plate segment 42 is arranged on the inner side of the B-pillar upper reinforcement plate 201. The first plate segment 41 and the second plate segment 42 are connected to each other. The thickness of the patch plate is f, and the hardness of the patch plate is D3. f and D3 satisfy the relationship: f>e, D3>D1. Specifically, the first plate segment 41 of the patch reinforcement plate 40 is arranged on the inner side of the A-pillar upper reinforcement plate 101, and the second plate segment 42 of the patch reinforcement plate 40 is arranged on the inner side of the B-pillar upper reinforcement plate 201. The first plate segment 41 and the second plate segment 42 are fixedly connected to form the patch reinforcement plate 40. With such an arrangement, the strength of the A-pillar upper reinforcement plate 101 can be fully enhanced.

[0055] Furthermore, the thickness of the patch reinforcement plate 40 is set to be the same as the thickness of the B-pillar lower reinforcement plate 203, which is greater than the thickness e of the door sill beam, and the patch reinforcement plate 40 uses a material with greater hardness, and the hardness is set to be greater than the hardness D1 of the A-pillar upper reinforcement plate 101, the B-pillar upper reinforcement plate 201, the B-pillar middle reinforcement plate 202 and the door sill beam reinforcement plate 30. Therefore, the patch reinforcement plate 40 uses materials with different thicknesses and hardnesses, which can ensure a certain strength and stability, and is also beneficial to maintaining the strength and stability of the overall structure of the door ring 100.

[0056] In some embodiments of the present invention, f may be 1.6 mm, and D3 may be 2000 MPa.

[0057] In addition, in some embodiments of the present invention, the total thickness of the A-pillar upper reinforcement plate 101 or the B-pillar upper reinforcement plate 201 and the patch reinforcement plate 40 needs to be ≤3.6 mm to avoid laser nodules that cannot be removed cleanly during laser cutting due to excessive sheet thickness.

[0058] Combination Figure 1 and Figure 3As shown, the door knocker 100 also includes an A-pillar inner plate 103, which is arranged on the inner side of the A-pillar upper reinforcement plate 101 and at least partially extends to the B-pillar upper reinforcement plate 201, and the patch reinforcement plate 40 is located between the A-pillar upper reinforcement plate 101 and the A-pillar inner plate 103, and one end of the patch reinforcement plate 40 adjacent to the B-pillar upper reinforcement plate 201 at least partially extends out of the A-pillar inner plate 103. Specifically, the A-pillar inner panel 103 is arranged on the inner side of the A-pillar upper reinforcement plate 101 and part of the A-pillar inner panel 103 extends to the B-pillar upper reinforcement plate 201, so that the connection between the A-pillar as a whole and the B-pillar upper reinforcement plate 201 can be more stable. The patch reinforcement plate 40 is located between the A-pillar upper reinforcement plate 101 and the A-pillar inner panel 103. Structurally, the patch reinforcement plate 40 cooperates with the A-pillar inner panel 103 to form a cavity, which can meet the collision performance requirements. The length of the patch reinforcement plate 40 is greater than the length of the A-pillar inner panel 103, and both ends of the patch reinforcement plate 40 respectively exceed a part of the A-pillar inner panel 103, so that the door ring 100 structure can be more solid and stable.

[0059] The vehicle according to the utility model can mainly include: the above-mentioned door knocker 100. Specifically, since the structure of the door knocker 100 is more stable and has good strength and integrity, applying the door knocker 100 to the vehicle can optimize the structural design of the vehicle, improve the safety performance of the vehicle, and reduce the weight of the vehicle.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0062] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A door knocker, characterized in that: include: An A-pillar reinforcement plate, the A-pillar reinforcement plate comprising: an A-pillar upper reinforcement plate and an A-pillar lower reinforcement plate, the A-pillar lower reinforcement plate being connected below the A-pillar upper reinforcement plate; A B-pillar reinforcement plate, the B-pillar reinforcement plate comprising a B-pillar upper reinforcement plate, a B-pillar middle reinforcement plate and a B-pillar lower reinforcement plate, the B-pillar upper reinforcement plate being connected to the rear side of the A-pillar upper reinforcement plate, the B-pillar middle reinforcement plate being connected to the lower side of the B-pillar upper reinforcement plate, and the B-pillar lower reinforcement plate being connected to the lower side of the B-pillar middle reinforcement plate; A sill beam reinforcement plate, the sill beam reinforcement plate being connected between the B-pillar lower section reinforcement plate and the A-pillar lower section reinforcement plate; There is a first welding seam between the sill beam reinforcement plate and the A-pillar lower reinforcement plate, a structural adhesive reinforcement is provided at the lower end of the A-pillar lower reinforcement plate, and the first welding seam is spaced apart and arranged at the rear side of the structural adhesive reinforcement.

2. The door knocker according to claim 1, characterized in that The distance between the first welding seam and the structural adhesive reinforcement is L1, and L1 satisfies the relationship: 43mm≤L1≤71mm.

3. The door knocker according to claim 1, characterized in that There is a second welding seam between the A-pillar upper reinforcement plate and the B-pillar upper reinforcement plate, a third welding seam between the sill beam reinforcement plate and the B-pillar lower reinforcement plate, a fourth welding seam between the B-pillar upper reinforcement plate and the B-pillar middle reinforcement plate, a fifth welding seam between the B-pillar middle reinforcement plate and the B-pillar lower reinforcement plate, and a sixth welding seam between the A-pillar upper reinforcement plate and the A-pillar lower reinforcement plate; The second welding seam, the third welding seam and the first welding seam are extended in the up-down direction, and the second welding seam and the third welding seam are located on the same straight line in the up-down direction.

4. The door knocker according to claim 3, characterized in that A liquid leakage hole is arranged at the lower end of the A-pillar lower reinforcement plate, and the first welding seam is arranged at a distance L2 from the liquid hole at a rear side thereof, and L2 satisfies the relationship: 10mm≤L2≤38mm.

5. The door knocker according to claim 1, characterized in that: The thicknesses of the A-pillar upper reinforcement plate, the A-pillar lower reinforcement plate, the B-pillar upper reinforcement plate, the B-pillar middle reinforcement plate, the B-pillar lower reinforcement plate and the sill beam reinforcement plate are not completely the same. The A-pillar upper reinforcement plate, the A-pillar lower reinforcement plate, the B-pillar upper reinforcement plate, the B-pillar middle reinforcement plate, the B-pillar lower reinforcement plate and the sill beam reinforcement plate are structural parts that are integrally stamped after laser welding.

6. The door knocker according to claim 5, characterized in that The thickness of the upper reinforcement plate of the A-pillar and the upper reinforcement plate of the B-pillar are both a, the thickness of the middle reinforcement plate of the B-pillar is b, the thickness of the lower reinforcement plate of the A-pillar is c, the thickness of the lower reinforcement plate of the B-pillar is d, and the thickness of the sill beam reinforcement plate is e. a, b, c, d and e satisfy the relationship: b>a>c>d>e, and b and e satisfy the relationship: e / b>0.

5.

7. The door knocker according to claim 6, characterized in that The hardness of the A-pillar upper reinforcement plate, the B-pillar upper reinforcement plate, the B-pillar middle reinforcement plate and the sill beam reinforcement plate is the same and is D1, the hardness of the A-pillar lower reinforcement plate and the B-pillar lower reinforcement plate is the same and is D2, and D1 and D2 satisfy the relationship: D1>D2.

8. The door knocker according to claim 7, characterized in that It also includes a patch reinforcement plate, which includes a first plate segment and a second plate segment, the first plate segment is arranged on the inner side of the A-pillar upper reinforcement plate, and the second plate segment is arranged on the inner side of the B-pillar upper reinforcement plate, the first plate segment and the second plate segment are integrally formed structural parts, the thickness of the patch reinforcement plate is f, the hardness of the patch reinforcement plate is D3, and f and D3 satisfy the relationship: f>e, D3>D1.

9. The door knocker according to claim 8, characterized in that It also includes an A-pillar inner panel, which is arranged on the inner side of the A-pillar upper reinforcement plate and at least partially extends to the B-pillar upper reinforcement plate, the patch reinforcement plate is located between the A-pillar upper reinforcement plate and the A-pillar inner panel, and one end of the patch reinforcement plate adjacent to the B-pillar upper reinforcement plate at least partially extends out of the A-pillar inner panel.

10. A vehicle, characterized in that: include: The door knocker according to any one of claims 1 to 9.

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