White body hook and passenger car

Abstract

The present invention relates to the technical field of vehicle bodies, and provides a body-in-white hook and a passenger car, which include an insert and an adapter. The insert is used to be assembled in a composite square beam formed by the buckling of an inner groove member and an outer groove member facing each other. The insert is a bent plate, which is bent in sequence to form an upper U-shaped bend with an upward opening and a lower U-shaped bend with a downward opening. The upper U-shaped bend engages with the legs of the inner groove member, and the lower U-shaped bend engages with the legs of the outer groove member. The lower U-shaped bend is provided with an adapter bolt on the outer leg wall on the side away from the upper U-shaped bend. The adapter includes an adapter plate and a hook, the adapter plate is connected with the adapter bolt, and the hook is connected with the adapter plate. The needle of the present invention is buckled with the legs of the inner groove member and the outer groove member respectively through the upper U-shaped bend and the lower U-shaped bend, which optimizes the force structure of the legs, and the body-in-white hook can be reliably set in the composite square beam without drilling a hole in the center of the beam.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle bodies, and in particular to a vehicle body-in-white hook and a passenger vehicle. Background Art

[0002] The body-in-white hook is a hook component set on the body-in-white, which is used to connect other parts of the car, such as exhaust pipes, wiring harnesses, etc. By using the body-in-white hook, automobile manufacturers can complete the installation of automobile parts more efficiently and accurately, and improve the production quality and efficiency of automobiles.

[0003] Traditional white body hooks are connected to the body beams by welding, but with the development of composite material technology, body beams made of composite materials have emerged. For example, publication number CN117341237A, entitled "Carbon Fiber Structural Parts and Preparation Methods Thereof," discloses a composite square beam for a body, which solves the defect of uncompacted corners of traditional resin-based composite square beams, improves the bending resistance of the square beams, and makes composite square beams easier to popularize on bodywork, especially on passenger buses, which is conducive to lightweighting of passenger buses.

[0004] However, for this type of composite square beam, how to connect the body-in-white hook on the beam becomes a problem. Common practices include: 1. Drilling holes directly on the beam or embedding embedded parts in the beam; 2. Using a clamp to clamp the beam. The former will cause the fibers of the resin matrix to break in the central area, and the cracks will spread from the central area to the surrounding area under the action of alternating stress, causing fatigue damage to the material. Even if embedded parts are set, the embedded parts are easy to delaminate with the resin matrix and cannot prevent the spread of cracks. The latter is simple and easy, and does not damage the beam structure, but it will affect the flatness of the upper surface of the beam and may affect the assembly of the beam with other components. Summary of the invention

[0005] One of the purposes of the present invention is to provide a body-in-white hook, aiming to propose a new assembly structure adapted to a composite square beam.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A body-in-white hook, comprising:

[0008] The insert is used to be assembled in a composite square beam formed by the inner groove part and the outer groove part buckled together. The insert is a bent plate, which is bent in sequence to form an upper U-shaped bend with an upward opening and a lower U-shaped bend with a downward opening. The upper U-shaped bend is engaged with the leg of the inner groove part, and the lower U-shaped bend is engaged with the leg of the outer groove part. The lower U-shaped bend is provided with a transfer bolt on the outer leg wall on the side away from the upper U-shaped bend. The insert is provided with an upper guide groove on the upper side of its plate, and upper guide rubber cotton is embedded in the upper guide groove, and the upper guide rubber cotton is impregnated with resin. The insert is provided with a lower guide groove on the lower side of its plate, and lower guide rubber cotton is embedded in the lower guide groove, and the lower guide rubber cotton is impregnated with resin.

[0009] The adapter comprises an adapter plate and a hook, wherein the adapter plate is connected to the adapter bolt, and the hook is connected to the adapter plate.

[0010] Furthermore, the upper conductive cotton wool is arranged from one end of the inner wall of the upper U-shaped bend to the other end of the inner wall of the upper U-shaped bend.

[0011] Furthermore, the surface roughness of the fitting is greater than Ra25.

[0012] A second object of the present invention is to provide a vehicle body, aiming to propose a new assembly structure adapted to a composite square beam.

[0013] To achieve the above object, the present invention adopts the following technical solutions:

[0014] A passenger car, comprising a vehicle body, wherein the vehicle body comprises:

[0015] A body-in-white hook, wherein the body-in-white hook is the body-in-white hook as described above;

[0016] A composite square beam, the composite square beam comprising an inner groove member and an outer groove member, the inner groove member and the outer groove member are resin-based composite materials, the inner groove member and the outer groove member are buckled inwardly; at the layout position corresponding to the white body hook, the leg on the corresponding side of the inner groove member is inwardly concavely formed to correspond to the first layout groove of the upper U-shaped bend, the end of the leg on the corresponding side of the inner groove member is provided with a notch-formed second layout groove corresponding to the upper U-shaped bend, and the leg on the corresponding side of the outer groove member is provided with a notch-formed third layout groove corresponding to the lower U-shaped bend.

[0017] Furthermore, a boss is provided at the bottom of the outer groove part, and a limiting groove is formed between the two sides of the boss and the inner walls of the two legs of the outer groove part, the waist height of the inner groove part corresponds to the groove width of the outer groove part, the leg width of the inner groove part corresponds to the groove depth of the outer groove part, the leg thickness of the inner groove part corresponds to the groove width of the limiting groove, and the groove openings of the inner groove part and the outer groove part are opposite to each other to buckle into the composite square beam.

[0018] Furthermore, the body-in-white hook is installed in the composite square beam through the following steps:

[0019] S1, using resin-based composite materials to prepare the inner groove member and the outer groove member respectively, when forming the outer groove member, the number of fiber layers on the groove bottom side of the outer groove member is greater than the number of fiber layers on the leg portion thereof to form the boss;

[0020] S2, milling the two side edges of the boss to form the limiting groove; trimming the leg width of the outer groove member and / or the inner groove member so that the leg width of the inner groove member corresponds to the groove depth of the outer groove member;

[0021] S3, clamping the upper U-shaped bend of the BIW hook onto the leg of the inner channel member corresponding to the layout position;

[0022] S4, buckle the inner groove member into the outer groove member facing each other, insert the leg end of the inner groove member into the limiting groove of the outer groove member, and make the lower U-shaped bend snap onto the leg of the outer groove member;

[0023] S5, injecting glue at the waist edge of the inner groove part to complete the gluing of the inner groove part and the outer groove part.

[0024] Furthermore, it also includes a reinforcement member, which is adapted to the inner wall size of the inner groove member and is provided with a clearance groove corresponding to the first layout groove, and the length of the reinforcement member is greater than 2 times the length of the first layout groove;

[0025] Then, the S3 further includes embedding the reinforcement member in the layout position of the inner groove member.

[0026] Furthermore, the reinforcement is a metal piece or a polyester fiber block impregnated with resin.

[0027] Furthermore, the composite square beam also includes an outer covering layer, which is a carbon fiber layer. The carbon fiber layer avoids the layout position and covers circumferentially, the number of covering circles is not less than one and a half circles, and the resin impregnates the carbon fiber layer and is cured into shape.

[0028] Furthermore, the inner and outer walls of the legs of the inner groove part form an outer resin layer with a thickness of 0.5-2 mm and a roughness greater than Ra25, and the inner walls of the legs of the outer groove part form an outer resin layer with a thickness of 0.5-2 mm and a roughness greater than Ra25.

[0029] After adopting the above technical solution, the present invention has the following advantages compared with the background technology:

[0030] The present invention provides an interlocking part for the composite square beam, which is used for being assembled in the composite square beam formed by the inner groove part and the outer groove part being buckled together. The upper U-shaped bend and the lower U-shaped bend are respectively buckled with the legs of the inner groove part and the outer groove part, thereby optimizing the force structure of the legs. The white body hook can be reliably set in the composite square beam without drilling a hole at the center position of the beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The body-in-white hook of the present invention;

[0032] Figure 2 This is a disassembled diagram of the body-in-white hook of the present invention;

[0033] Figure 3 It is a schematic diagram of installing the body-in-white hook on the composite square beam according to the present invention;

[0034] Figure 4 for Figure 3 A top view of

[0035] Figure 5 for Figure 4 Sectional view at AA in the middle;

[0036] Figure 6 for Figure 4 Sectional view at the middle BB;

[0037] Figure 7 This is a disassembly schematic diagram of the present invention;

[0038] Figure 8 It is a schematic diagram of the inner groove member of the present invention.

[0039] Description of reference numerals:

[0040] 100, body-in-white hook; 110, fitting; 111, upper U-bend; 112, lower U-bend; 113, upper guide groove; 114, upper guide cotton; 115, lower guide groove; 116, lower guide cotton; 117, adapter bolt; 120, adapter; 121, adapter plate; 1211, bolt hole; 122, hook;

[0041] 200, composite square beam; 210, inner groove member; 211, first layout groove; 212, second layout groove; 220, outer groove member; 221, third layout groove; 222, boss; 223, limit groove; 230, reinforcement member; 231, clearance groove. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0043] In addition, it should be noted that the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] When an element is referred to as being “fixed to” or “disposed on” or “provided on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0045] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0046] Example 1

[0047] Please refer to Figure 1 As shown, this embodiment provides a body-in-white hook 100 , which includes an engaging member 110 and an adapter member 120 .

[0048] The insert 110 is used to be assembled in the composite square beam 200 formed by the inner groove 210 and the outer groove 220 facing each other. The insert 110 is a bent plate, which is bent in sequence to form an upper U-shaped bend 111 with an upward opening and a lower U-shaped bend 112 with a downward opening. The upper U-shaped bend 111 is used to clamp the leg of the inner groove 210 in the composite square beam 200, and the lower U-shaped bend 112 is used to clamp the leg of the outer groove 220 in the composite square beam 200. The lower U-shaped bend 112 is provided with an adapter bolt 117 on the outer leg wall of the side away from the upper U-shaped bend 111, so as to facilitate detachable connection with the adapter 120.

[0049] The adapter 120 includes an adapter plate 121 and a hook 122. The adapter plate 121 is provided with a bolt hole 1211 to be connected with the adapter bolt 117 through a nut. The hook 122 is welded to the adapter plate 121. In this way, through the detachable connection between the adapter plate 121 and the adapter bolt 117, the adapter 120 with different hook 122 forms can be selected according to the needs to meet the suspension requirements of different components.

[0050] In order to facilitate the combination of the insert 110 and the composite square beam 200, the insert 110 is provided with an upper guide groove 113 on the upper side of its plate, and an upper guide rubber cotton 114 is embedded in the upper guide groove 113. The upper guide rubber cotton 114 is used to infiltrate and drain the resin, and promote the fitting connection between the insert 110 and the inner groove part 210. Specifically, the upper guide rubber cotton 114 is arranged from one end of the inner wall of the upper U-shaped bend 111 to the other end of the inner wall. The insert 110 is provided with a lower guide groove 115 on the lower side of its plate, and a lower guide rubber cotton 116 is embedded in the lower guide groove 115. The lower guide rubber cotton 116 is used to infiltrate and drain the resin, and promote the fitting connection between the insert 110 and the outer groove part 220. Specifically, the lower guide rubber cotton 116 fills the lower guide groove 115.

[0051] In order to improve the bonding strength of the joint surface, the surface of the fitting 110 (including the upper guide groove 113 and the lower guide groove 115) is roughened, and the roughness thereof is greater than Ra25.

[0052] The installation method of the BIW hook 100 shown in this embodiment is further discussed in Embodiment 2 and will not be repeated in this embodiment.

[0053] Example 2

[0054] Please refer to Figure 3-Figure 6 As shown, the present invention discloses a passenger car, specifically, a local component of a vehicle body, which includes a body-in-white hook 100 and a composite square beam 200 .

[0055] The BIW hook 100 is the BIW hook 100 as described in the first embodiment.

[0056] The composite square beam 200 includes an inner groove member 210 and an outer groove member 220. The inner groove member 210 and the outer groove member 220 are resin-based composite materials, and the inner groove member 210 and the outer groove member 220 are buckled facing each other; at the layout position corresponding to the body-in-white hook 100, the leg on the corresponding side of the inner groove member 210 is concavely formed into a first layout groove 211 corresponding to the upper U-shaped bend 111, the end of the leg on the corresponding side of the inner groove member 210 is provided with a notch forming a second layout groove 212 corresponding to the upper U-shaped bend 111, and the leg on the corresponding side of the outer groove member 220 is provided with a notch forming a third layout groove 221 corresponding to the lower U-shaped bend 112. In this way, the embedded member 110 can be embedded in the composite square beam 200 without protruding from the upper surface of the composite square beam 200.

[0057] The groove bottom of the outer groove part 220 is provided with a boss 222, and the two sides of the boss 222 and the inner walls of the two legs of the outer groove part 220 form a limiting groove 223, the waist height of the inner groove part 210 corresponds to the groove width of the outer groove part 220, the leg width of the inner groove part 210 corresponds to the groove depth of the outer groove part 220, and the leg thickness of the inner groove part 210 corresponds to the groove width of the limiting groove 223. The inner groove part 210 and the outer groove part 220 notch are opposite to each other to buckle and form a composite square beam 200. Through the engagement of the limiting groove 223 in the outer groove part 220 and the legs of the inner groove part 210, the bending strength of the product can be effectively improved. In order to promote interlayer bonding, the inner and outer walls of the legs of the inner groove part 210 form inner and outer resin layers with a thickness of 0.5-2 mm and a roughness greater than Ra25, and the inner walls of the legs of the outer groove part 220 form an outer resin layer with a thickness of 0.5-2 mm and a roughness greater than Ra25. The resin layer can be knurled, which belongs to the prior art and has been recorded in the applicant's patent publication number CN117341237A. The technical principles and details will not be repeated here.

[0058] In this way, the body-in-white hook 100 is installed into the composite square beam 200 through the following steps:

[0059] S1, using resin-based composite materials to prepare the inner groove member 210 and the outer groove member 220 respectively, when forming the outer groove member 220, the number of fiber layers on the groove bottom side of the outer groove member 220 is greater than the number of fiber layers on its leg portion to form the boss 222;

[0060] S2, milling the two side edges of the boss 222 to form the limiting groove 223; trimming the leg width of the outer groove member 220 and / or the inner groove member 210 so that the leg width of the inner groove member 210 corresponds to the groove depth of the outer groove member 220 (i.e., trimming is performed when the size of the outer groove member 220 exceeds the standard, the size of the inner groove member 210 exceeds the standard, or both exceed the standard, so that the two can be smoothly assembled);

[0061] S3, snapping the upper U-shaped bend 111 of the BIW hook 100 onto the leg of the inner channel member 210 corresponding to the layout position;

[0062] S4, the inner groove member 210 is buckled into the outer groove member 220 facing each other, so that the leg ends of the inner groove member 210 are inserted into the limiting grooves 223 of the outer groove member 220, and the lower U-shaped bend 112 is engaged with the legs of the outer groove member 220;

[0063] S5. Glue is injected into the waist edge of the inner groove part 210. The resin will complete the gluing of the inner groove part 210 and the outer groove part 220. At the same time, it will be introduced into the upper guide rubber cotton 114 and the lower guide rubber cotton 116 along the upper guide groove 113 and the lower guide groove 115. Under the guiding effect of the upper guide rubber cotton 114 and the lower guide rubber cotton 116, the glued embedded part 110 is cured and formed.

[0064] In addition, in order to ensure that the outer part of the lower U-shaped bend 112 can be reliably connected to the outer groove member 220, the glued composite square beam 200 is turned over 180 degrees, and glue is injected between the lower guide groove 115 and the outer wall of the leg of the outer groove member 220 to solidify and form.

[0065] In the present invention, although the inner trough member 210 is provided with an inwardly concave first layout groove 211, the bending resistance of the inner trough member 210 is affected to a certain extent, so that the bending resistance at the position corresponding to the first layout groove 211 is reduced, but for the overall composite square beam 200, since the outer trough member 220 is not affected, when subjected to bending force, the leg ends of the inner trough member 210 outside the first layout groove 211 are inserted in the limiting groove 223 of the outer trough member 220 to resist the bending force, and therefore, no obvious reduction in the bending resistance is caused.

[0066] Comparative Sample 1 was prepared with reference to the preparation conditions of Sample 2 in the patent CN117341237A. In Comparative Sample 1, the thickness of the engaging member 110 was 2 mm, the width was 30 mm, the width of the upper guide groove 113 and the lower guide groove 115 was 10 mm, the depth was 0.5 mm, and the material of the upper guide cotton 114 and the lower guide cotton 116 was polyester fiber. The bending strength of Comparative Sample 2 was measured to be 267 Mpa, which was not significantly reduced compared with the bending strength of Sample 2 of 272 Mpa.

[0067] In order to further reinforce the composite square beam 200, in a more preferred embodiment, the composite square beam 200 also includes a reinforcement member 230, which is adapted to the inner wall size of the inner groove member 210 and is provided with a yield groove corresponding to the first layout groove 211. The length of the reinforcement member 230 is greater than 2 times the length of the first layout groove 211, so that when the layout position is impacted, the reinforcement member 230 can withstand the impact without affecting the bending resistance of the composite square beam 200.

[0068] Then, in S3, the reinforcing member 230 is embedded in the layout position of the inner channel member 210. The reinforcing member 230 can be a solid or hollow metal member, or a polyester fiber block impregnated with resin.

[0069] In a more preferred embodiment, the composite square beam 200 also includes an outer covering layer, which is a carbon fiber layer. The carbon fiber layer avoids the layout position and covers along the circumference of the pipe. The number of covering circles is not less than one and a half circles. The resin impregnates the carbon fiber layer and solidifies it into shape.

[0070] In this way, by wrapping the carbon fiber layer, the inner groove member 210 and the outer groove member 220 are tightly bound by utilizing the characteristics of high strength and modulus of the carbon fiber material along the fiber axis direction, so that the bending strength thereof is further improved.

[0071] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A passenger car, comprising a vehicle body structure, characterized in that: The vehicle body structure comprises: The body-in-white hook comprises an insert and an adapter, wherein the insert is used to be assembled in a composite square beam formed by the inner groove member and the outer groove member facing each other, wherein the insert is a bent plate, which is bent in sequence to form an upper U-shaped bend with an opening upward and a lower U-shaped bend with an opening downward, wherein the upper U-shaped bend engages with the leg of the inner groove member, and the lower U-shaped bend engages with the leg of the outer groove member; the lower U-shaped bend is provided with an adapter bolt on the outer leg wall on a side away from the upper U-shaped bend; the insert is provided with an upper guide groove on the upper side of its plate, wherein upper guide rubber cotton is embedded in the upper guide groove, and the upper guide rubber cotton is impregnated with resin; the insert is provided with a lower guide groove on the lower side of its plate, wherein lower guide rubber cotton is embedded in the lower guide groove, and the lower guide rubber cotton is impregnated with resin; the adapter comprises an adapter plate and a hook, wherein the adapter plate is connected to the adapter bolt, and the hook is connected to the adapter plate; A composite square beam, the composite square beam comprising an inner groove member and an outer groove member, the inner groove member and the outer groove member are resin-based composite materials, the inner groove member and the outer groove member are buckled inwardly; at the layout position corresponding to the white body hook, the leg on the corresponding side of the inner groove member is inwardly concavely formed to correspond to the first layout groove of the upper U-shaped bend, the end of the leg on the corresponding side of the inner groove member is provided with a notch-formed second layout groove corresponding to the upper U-shaped bend, and the leg on the corresponding side of the outer groove member is provided with a notch-formed third layout groove corresponding to the lower U-shaped bend.

2. The passenger car according to claim 1, characterized in that: A boss is provided at the bottom of the outer groove part, and limiting grooves are formed between the two sides of the boss and the inner walls of the two legs of the outer groove part. The waist height of the inner groove part corresponds to the groove width of the outer groove part, the leg width of the inner groove part corresponds to the groove depth of the outer groove part, and the leg thickness of the inner groove part corresponds to the groove width of the limiting groove. The notches of the inner groove part and the outer groove part are opposite to each other to buckle into the composite square beam.

3. The passenger car according to claim 2, characterized in that: The body-in-white hook is installed into the composite square beam by the following steps: S1, using resin-based composite materials to prepare the inner groove member and the outer groove member respectively, when forming the outer groove member, the number of fiber layers on the groove bottom side of the outer groove member is greater than the number of fiber layers on the leg portion thereof to form the boss; S2, milling the two side edges of the boss to form the limiting groove; trimming the leg width of the outer groove member and / or the inner groove member so that the leg width of the inner groove member corresponds to the groove depth of the outer groove member; S3, clamping the upper U-shaped bend of the BIW hook onto the leg of the inner channel member corresponding to the layout position; S4, buckle the inner groove member into the outer groove member facing each other, insert the leg end of the inner groove member into the limiting groove of the outer groove member, and make the lower U-shaped bend snap onto the leg of the outer groove member; S5, injecting glue at the waist edge of the inner groove part to complete the gluing of the inner groove part and the outer groove part.

4. The passenger car according to claim 3, characterized in that: It also includes a reinforcement member, which is adapted to the inner wall size of the inner groove member and is provided with a clearance groove corresponding to the first layout groove, and the length of the reinforcement member is greater than 2 times the length of the first layout groove; Then, the S3 further includes embedding the reinforcement member in the layout position of the inner groove member.

5. The passenger car according to claim 4, characterized in that: The reinforcement member is a metal member or a polyester fiber block impregnated with resin.

6. The passenger car according to claim 4, characterized in that: The composite square beam further comprises an outer covering layer, which is a carbon fiber layer. The carbon fiber layer avoids the layout position and covers circumferentially, with the number of covering circles being not less than one and a half circles. The resin impregnates the carbon fiber layer and is cured to form.

7. The passenger car according to claim 1, characterized in that: The inner and outer walls of the legs of the inner groove part form an outer resin layer with a roughness of 0.5-2 mm and greater than Ra25, and the inner walls of the legs of the outer groove part form an outer resin layer with a roughness of 0.5-2 mm and greater than Ra25.

8. The passenger car according to claim 1, characterized in that: The upper guide rubber cotton is arranged from one end of the inner wall of the upper U-shaped bend to the other end of the inner wall of the upper U-shaped bend; the lower guide rubber cotton fills the lower guide groove.

9. The passenger car according to claim 1, characterized in that: The surface roughness of the engaging part is greater than Ra25.

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