Vehicle rear panel with metal embedded injection molding composite structure and vehicle

Abstract

The utility model provides a vehicle rear panel with a metal embedded injection molding composite structure and a vehicle, comprising: a metal member, the left and right end parts of which can be connected to the side wall of the vehicle, and the middle part of which can be provided with a tail door lock catch of the vehicle; a double-layer fixing part is formed on the top of the injection molding component, the double-layer fixing part comprises a first layer and a second layer, a connecting part is further formed below the double-layer fixing part, and the connecting part is used for being connected to a rear floor of the vehicle; wherein the metal component is located between the first layer and the second layer, so that the first layer and the second layer become external wrapping layers and are tightly attached to the surface of the metal component, a sandwich structure is formed, and the metal component is fixed to the top of the injection molding component. According to the vehicle rear wall plate, it is guaranteed that the rear wall plate has enough strength, and meanwhile the self weight of the rear wall plate is reduced. In addition, the use of the injection molding material can reduce the production cost of the rear panel.

Description

Technical Field

[0001] This utility model relates to the field of vehicle manufacturing technology, specifically to a vehicle rear panel and vehicle with a metal-embedded injection-molded composite structure. Background Technology

[0002] In modern automotive manufacturing systems, the rear bulkhead, as a crucial component of the vehicle body structure, performs multiple key functions. First, it provides installation space for the spare tire and onboard tools, ensuring vehicle practicality. Second, in a collision, it absorbs impact energy, reducing deformation within the vehicle and thus protecting occupants. Furthermore, the rear bulkhead provides structural support for the rear of the vehicle, ensuring overall vehicle rigidity and stability.

[0003] However, the mainstream manufacturing material for rear panels is still metal (such as ordinary steel or high-strength steel). Although metal materials can meet the strength requirements, their high density results in a relatively heavy rear panel, thus increasing the overall vehicle weight, which contradicts the trend of lightweighting in the automotive industry. Lightweight design can not only significantly reduce energy consumption but also improve driving range and handling performance. Especially with the rapid popularization of new energy vehicles, the importance of lightweight technology is becoming increasingly prominent.

[0004] Furthermore, metal rear panels are expensive to repair. Once damaged, they typically require cutting and replacement, which not only increases repair costs but can also lead to a significant depreciation of the vehicle's value.

[0005] Therefore, how to achieve lightweighting of the rear panel while ensuring safety performance and reducing maintenance costs has become a pressing technical challenge in the field of automotive design. Utility Model Content

[0006] The purpose of this utility model is to provide a rear panel for a vehicle, which has advantages such as being lightweight and low cost.

[0007] Another objective of this invention is to provide a vehicle that uses a lightweight and low-cost rear panel, thereby reducing the overall vehicle weight and maintenance costs.

[0008] To achieve the above objectives, this utility model provides a vehicle rear panel with a metal-embedded injection-molded composite structure, comprising: a metal component whose left and right ends can be connected to the side panels of the vehicle, and whose middle part can be fitted with a tailgate latch; and an injection-molded component whose top is formed as a double-layer fixing part, the double-layer fixing part including a first layer and a second layer, and a connecting part formed below the double-layer fixing part, the connecting part being used to connect to the rear floor of the vehicle; wherein, the metal component is located between the first layer and the second layer, so that the first layer and the second layer become an outer wrapping layer, tightly adhering to the surface of the metal component, thereby forming a sandwich structure, thereby fixing the metal component to the top of the injection-molded component.

[0009] In some exemplary embodiments, the metal component includes: a first plate; a second plate, the front edge of which is connected to the upper edge of the first plate and extends rearward from the upper edge of the first plate, wherein the rear portion of the second plate is inclined upward and exposed outside the outer covering layer for mounting a sealing strip, and each of the two ends of the rear portion of the second plate has a first connecting hole; two reinforcing plates, respectively located at the two ends of the metal component, the front edge of each reinforcing plate being connected to the first plate and the upper edge being connected to the two ends of the front portion of the second plate; and two end plates, respectively located at the two ends of the metal component, and each end plate has a second connecting hole, wherein each end plate extends outward from the rear edge of the reinforcing plate on the same side as it, and the upper edge of each end plate is connected to the end of the rear portion of the second plate; wherein the first connecting hole and the second connecting hole are used for threading bolts.

[0010] In some exemplary embodiments, a first size reduction portion is formed in the middle of the first plate, and a second size reduction portion is formed in the middle of the second plate corresponding to the first size reduction portion; the metal component further includes: two triangular plates, each triangular plate having a first side connected to the first plate and a second side connected to the second plate; a latch mounting plate for mounting a tailgate latch of the vehicle, wherein the lower edge of the latch mounting plate is connected to the first size reduction portion, the upper edge of the latch mounting plate is connected to the second size reduction portion, and the left and right edges of the latch mounting plate are respectively connected to the third sides of the two triangular plates; wherein the two triangular plates are symmetrically connected to the left and right sides of the latch mounting plate, and the included angle formed between each of the two triangular plates and the latch mounting plate is an obtuse angle.

[0011] In some exemplary embodiments, the first layer includes: a front layer attached to the front surface of the first plate; an upper layer attached to the upper surface of the second plate and exposing the rear portion of the second plate; a front inclined layer attached to the front surface of the latch mounting plate; two outer layers attached to the outer surfaces of the two reinforcing plates respectively; and two front edge layers attached to the front surfaces of the two end plates respectively, exposing the two second connection holes respectively. The second layer includes: a rear layer attached to the rear surface of the first plate; a lower layer attached to the lower surface of the second plate and exposing the rear portion of the second plate; a rear inclined layer attached to the rear surface of the latch mounting plate; two inner layers attached to the inner surfaces of the two reinforcing plates respectively; and two rear edge layers attached to the rear surfaces of the two end plates respectively, exposing the second connection holes respectively.

[0012] In some exemplary embodiments, the injection-molded component further includes: a strip plate formed between two inner layers, wherein two ends of the strip plate are respectively connected to the bottom of the two inner layers; and a cross reinforcement portion including an intersecting first reinforcing rib and a second reinforcing rib, the first reinforcing rib and the second reinforcing rib being obliquely disposed between the lower layer and the strip plate, wherein the upper edges of the first reinforcing rib and the second reinforcing rib are respectively connected to the lower layer, and the lower edges of the first reinforcing rib and the second reinforcing rib are respectively connected to the strip plate.

[0013] In some exemplary embodiments, a plurality of cross reinforcements are formed between the lower layer and the strip plate; the rear layer includes a first rear layer, the rear surface of the first plate being fitted with the first rear layer corresponding to the position of each cross reinforcement; a first reinforcing rib and a second reinforcing rib of each cross reinforcement extend forward and connect to the first rear layer; each cross reinforcement further includes a reinforcing post formed at the intersection of the first reinforcing rib and the second reinforcing rib; the first plate has a through hole formed at the position corresponding to the reinforcing post, the front layer is able to cover the through hole, and the reinforcing post passes through the through hole and connects to the front layer.

[0014] In some exemplary embodiments, two rear bumper cover mounting portions are formed between some of the cross-reinforcing structures. Each rear bumper cover mounting portion includes: an upper plate sequentially connected to a first reinforcing rib and a second reinforcing rib of the cross-reinforcing structure; a lower plate sequentially connected to the first reinforcing rib and the second reinforcing rib of the cross-reinforcing structure, with its rear end protruding rearward relative to the upper plate; and a vertical plate connecting the upper plate and the lower plate. A gap exists between the upper plate and the lower plate for mounting the rear bumper cover, and the rear end of the lower plate has a plurality of locking blocks for engaging the rear bumper cover, distributed along a left-right direction. The rear layer further includes a second rear layer, with the rear surface of the first plate abutting the second rear layer corresponding to the position of each rear bumper cover mounting portion. The upper plate, lower plate, and vertical plate of each rear bumper cover mounting portion extend forward and connect to the second rear layer.

[0015] In some exemplary embodiments, a latching mounting plate support is further formed between the lower layer and the strip plate. The latching mounting plate support includes: three vertical support plates, the upper edge of each vertical support plate being connected to the lower layer and the lower edge of each vertical support plate being connected to the strip plate, and the three vertical support plates being evenly distributed along the left-right direction and corresponding to the left, middle, and right sides of the latching mounting plate, respectively; a horizontal support plate connecting the three vertical support plates and corresponding to the lower end of the latching mounting plate; and two diagonal support plates, respectively formed on the middle vertical support plate. The two sides of the plate, and the lower edge of each inclined support plate is connected to the lower edge of the vertical support plate, and the upper edge of each inclined support plate is connected to the connection between the horizontal support plate and the vertical support plate located in the middle; the rear layer includes a third rear layer, which is attached to the rear surface of the first size reduction portion of the first plate; three vertical support plates, a horizontal support plate, and two inclined support plates extend forward, wherein the lower portions of the three vertical support plates and the two inclined support plates extend to connect with the third rear layer, while the upper portions of the three vertical support plates and the two inclined support plates, as well as the horizontal support plate, extend to connect with the rear inclined layer.

[0016] In some exemplary embodiments, the latch mounting plate comprises: two latch mounting holes located on both sides of the central vertical support plate; three through holes, one of which is located between the two latch mounting holes and corresponds to the central vertical support plate, and the other two through holes are located below the two latch mounting holes and correspond to the horizontal support plate; and a connecting groove connecting the three through holes. The latch mounting plate support further comprises: three fixing posts passing through the three through holes and connected to the central vertical support plate and the horizontal support plate; and a fixing post connecting portion located within the connecting groove and connecting the three fixing posts.

[0017] In some exemplary embodiments, the lower surface of the lower layer forms a plurality of spaced-apart guide blocks, each guide block extending backward and beyond the lower layer, and the upper surface of the portion of each guide block extending beyond the lower layer is a slope.

[0018] In some exemplary embodiments, the connecting portion has a plurality of connecting holes, and an outer ring portion and an inner ring portion are formed on its rear surface at positions corresponding to the connecting holes. The outer ring portion is fitted over the outer side of the inner ring portion and connected by a plurality of connecting ribs. The inner circumference of the inner ring portion corresponds to the connecting holes and has the same diameter.

[0019] In some exemplary embodiments, the injection-molded component further includes a tire clearance area located below the double-layer fixing portion and between the double-layer fixing portion and the connecting portion, wherein the connecting portion protrudes forward relative to the double-layer fixing portion and the tire clearance area.

[0020] In some exemplary embodiments, the front surface of the tire clearance area is formed with crisscrossing first reinforcing protrusions; the rear surface of the tire clearance area and the connecting portion is formed with crisscrossing second reinforcing protrusions; and the edge of the rear surface of the injection-molded component is formed with third reinforcing protrusions.

[0021] To achieve another objective of this utility model, a second aspect of this utility model also provides a vehicle comprising: a side panel; a rear floor; a vehicle rear panel of the metal-embedded injection-molded composite structure described in the first aspect, which is connected to the side panel and the rear floor; and a waterproof strip disposed between the connection portion of the rear floor and the vehicle rear panel of the metal-embedded injection-molded composite structure.

[0022] The vehicle rear panel with a metal-embedded injection-molded composite structure according to this utility model provides corresponding strength through metal components, while using lightweight injection-molded materials to reduce the weight of the rear panel. This composite structure ensures sufficient strength for the rear panel while reducing its own weight. Furthermore, the use of injection-molded materials also reduces the production cost of the rear panel. Vehicles using the rear panel provided by this utility model can not only reduce the overall vehicle weight but also lower maintenance costs, thereby improving the overall performance and economy of the vehicle. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of a vehicle rear panel with a metal-embedded injection-molded composite structure.

[0024] Figure 2 This is an exploded structural diagram of the vehicle's rear panel, which features a metal-embedded injection-molded composite structure.

[0025] Figure 3 This is a structural diagram of a metal component;

[0026] Figure 4 This is a front view of the metal component;

[0027] Figure 5 This is a top view of the metal component;

[0028] Figure 6 This is a schematic diagram of the connection relationship of the latch mounting plate;

[0029] Figure 7 This is a structural diagram of a plastic component;

[0030] Figure 8 This is a rear view of the plastic component;

[0031] Figure 9 This is a schematic diagram of the cross-reinforcement section;

[0032] Figure 10 This is a structural schematic diagram of a reinforced column;

[0033] Figure 11 This is a structural diagram of the rear bumper cover mounting section;

[0034] Figure 12 This is a rear view of the rear bumper cover mounting section;

[0035] Figure 13 This is a schematic diagram of the rear bumper cover installation structure;

[0036] Figure 14 Schematic diagram of the support part of the latch mounting plate;

[0037] Figure 15 This is the rear view of the connection hole;

[0038] Figure 16 This is a schematic diagram of the structure of a vehicle rear panel with a metal-embedded injection-molded composite structure installed on the vehicle body.

[0039] Explanation of reference numerals in the attached figures

[0040] Rear panel 1, Metal components 10

[0041] First plate 110, first size reduction section 111

[0042] Through hole 112 Second plate 120

[0043] Second size reduction section 121 Reinforcing plate 130

[0044] End plate 140, triangle plate 150

[0045] First side 151, Second side 152

[0046] Third side 153, latch mounting plate 160

[0047] Lock mounting hole 161, through hole 162

[0048] Connecting groove 163 Injection molded component 20

[0049] Double-layer fixing part 210 First layer 210a

[0050] Upper layer 211, Front layer 212

[0051] Forward tilted layer 212a Outer layer 213

[0052] Front layer 214, Second layer 210b

[0053] Lower level 215

[0054] Back layer 216', 216”, 216”'

[0055] Back-tilted layer 216a Inner layer 217

[0056] Rear layer 218, cross reinforcement section 220

[0057] First reinforcing rib 221 Second reinforcing rib 222

[0058] Reinforcing column 223, strip plate 230

[0059] Rear bumper cover mounting section 240, upper plate 241

[0060] Bottom board 242, Vertical board 243

[0061] 244 latching block, 250 locking mounting plate support.

[0062] Vertical support plates 251, 252, 253

[0063] Horizontal support plate 254, diagonal support plates 255 and 256

[0064] Fixed post 257 Fixed post connecting part 258

[0065] Guide block 260, inclined surface 261

[0066] Connecting part 270 Connecting hole 271

[0067] Inner Ring 272 Outer Ring 273

[0068] Connecting rib 274, tire clearance zone 280

[0069] Strengthen protrusions 291, 292, and 293

[0070] Side panel 2, Rear floor 3

[0071] Rear bumper cover 4.

[0072] Unless otherwise stated, the same reference numerals or symbols denote the same elements in the accompanying drawings.

[0073] It should be understood that the accompanying drawings are not necessarily drawn to scale, but rather present simplified representations of various features to illustrate the principles of this invention. The specific design features disclosed in this invention (including, for example, specific dimensions, orientations, positions, and shapes) will be determined in part by the specific application and environment in which they will be used.

[0074] Throughout these figures, the same reference numerals denote the same or equivalent parts of the present invention. Detailed Implementation

[0075] The present invention will now be described in detail with reference to various embodiments, examples of which are presented in the accompanying drawings and described below. Although the present invention will be described in conjunction with exemplary embodiments, it should be understood that this specification is not intended to limit the present invention to these exemplary embodiments. Rather, the present invention is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments that may be included within the spirit of the present invention and the scope defined by the appended claims.

[0076] For ease of interpretation and precise definition of the appended claims, the terms “upper,” “lower,” “front,” “rear,” “left,” “middle,” “right,” “top,” “bottom,” “inner,” and “outer” are used to describe features of the exemplary embodiments with reference to the positions of these features shown in the accompanying drawings, wherein “middle” refers to the middle position between “left” and “right,” “inner” refers to the side closer to the middle in the left-right direction, and “outer” refers to the side closer to the “left” or “right” in the left-right direction.

[0077] See also Figure 1 , Figure 2 , Figure 16 The vehicle rear panel 1 (hereinafter referred to as rear panel 1) with a metal-embedded injection-molded composite structure provided by this utility model includes a metal component 10 and an injection-molded component 20, with the metal component 10 fixed to the top of the injection-molded component 20. That is, the top of the rear panel 1 is provided with the metal component 10, and the left and right ends of the metal component 10 can be connected to the side panels 2 of the vehicle, while the bottom of the rear panel 1 is made of plastic and is used to connect to the rear floor 3 of the vehicle. By adopting a metal-plastic composite structure, the weight of the rear panel 1 is reduced, thereby reducing the overall vehicle weight. At the same time, the metal-plastic composite structure of the rear panel 1 has a lower cost, which can also reduce manufacturing costs and subsequent maintenance costs.

[0078] The following is a reference Figures 3 to 6 The structure of metal component 10 is described.

[0079] Metal component 10 is integrally molded, such as Figure 3 As shown, it includes a first plate 110, a second plate 120, two reinforcing plates 130, and two end plates 140. The front edge of the second plate 120 is connected to the upper edge of the first plate 110 and extends rearward from the upper edge of the first plate 110. The rear portion of the second plate 120 can be used to install a sealing strip, which is inclined upward relative to the front portion of the second plate 120. Furthermore, each of the two ends of the rear portion of the second plate 120 has a first connecting hole 271, through which the metal component 10 can be connected to the side panel 2 of the vehicle.

[0080] Two reinforcing plates 130 are located at the left and right ends of the metal component 10, respectively. The front end of each reinforcing plate 130 is connected to the first plate 110, and the upper end of each reinforcing plate 130 is connected to the front part of the second plate 120. The reinforcing plates 130 can share the stress at the connection between the first plate 110 and the second plate 120 to enhance the structural strength of the metal component 10.

[0081] Two end plates 140 are located at the left and right ends of the metal member 10, respectively, and each end plate 140 is connected to a corresponding reinforcing plate 130. Each end plate 140 extends outward from the rear edge of the reinforcing plate 130 on the same side, and the upper edge of each end plate 140 is connected to the end of the rear portion of the second plate 120. (See reference...) Figure 3 Taking the left end plate 140 as an example, the right edge of the end plate 140 is connected to the rear edge of the reinforcing plate 130 and extends to the left relative to the reinforcing plate 130, while the upper edge of the end plate 140 is connected to the right end of the rear part of the second plate 120.

[0082] Each end plate 140 also has a second connecting hole 271. The second connecting hole 271 has the same function as the first connecting hole 271 and is also used for connecting the metal component 10 to the side panel of the vehicle.

[0083] See also Figure 3 and Figure 6 The metal component 10 also has a latch mounting plate 160 in the middle, which can be used to install the tailgate latch. Two latch mounting holes 161 are formed on the latch mounting plate 160, through which the tailgate latch can be installed to the latch mounting plate 160.

[0084] See Figure 4A first size reduction portion 111 is formed in the middle of the first plate 110. The size of the first size reduction portion 111 in the vertical direction is smaller than the size of the left and right sides of the first plate 110 in the vertical direction. Furthermore, the size of the left and right sides of the first plate 110 connected to the first size reduction portion 111 in the vertical direction gradually decreases, and eventually decreases to the same size as the first size reduction portion 111 in the vertical direction.

[0085] See Figure 5 The middle portion of the second plate 120 corresponds to the first size reduction portion 111 to form a second size reduction portion 121. Similarly, the size of the second size reduction portion 121 in the front-back direction is smaller than the size of the left and right sides of the second plate 120 in the left-right direction. Specifically, the second size reduction portion 121 is located in the front portion of the second plate 120. The size of the left and right sides of the front portion of the second plate 120 connected to the second size reduction portion 121 in the front-back direction gradually decreases, and eventually decreases to be the same as the size of the second size reduction portion 121 in the front-back direction.

[0086] See Figure 6 The lower edge of the latch mounting plate 160 is connected to the upper edge of the first size reduction part 111, and the upper edge of the latch mounting plate 160 is connected to the front edge of the second size reduction part 121. At this time, the latch mounting plate 160 is inclined on the metal component 10 in the vertical direction (or the front-back direction).

[0087] The metal component 10 also includes two triangular plates 150, each triangular plate 150 having a triangular structure, and the two triangular plates 150 are symmetrically arranged on the left and right sides of the latch mounting plate 160. The first side 151 of the triangular plate 150 is connected to the inner side of the first plate 110 where the dimension gradually decreases, the second side 152 of the triangular plate 150 is connected to the inner side of the second plate 120 where the dimension gradually decreases, and the third sides 153 of the two triangular plates 150 are connected to the left and right edges of the latch mounting plate 160, respectively. At this time, the included angle formed between the plane containing each triangular plate 150 and the plane containing the latch mounting plate 160 is an obtuse angle.

[0088] See Figure 7 The top of the injection molded component 20 is formed as a double-layer fixing part 210, and the injection molded component 20 fixes the metal component 10 to its top through the double-layer fixing part 210.

[0089] See also Figure 7 and Figure 8The double-layer fixing part 210 includes a first layer 210a and a second layer 210b, with the metal component 10 located between the first layer 210a and the second layer 210b. The first layer 210a and the second layer 210b are tightly attached to the surface of the metal component 10, together forming an outer wrapping layer, thus forming a sandwich structure composed of the first layer 210a, the metal component 10, and the second layer 210b, thereby fixing and connecting the metal component 10.

[0090] When manufacturing the rear panel 1, the pre-formed metal component 10 is placed into an injection mold, with a gap between the surface of the metal component 10 and the injection mold. Injection molding material is injected into the injection mold; this material can be a plastic such as PA6 or PP, or a lightweight metal such as aluminum alloy. The injection molding material then flows into the gap between the surface of the metal component 10 and the injection mold. After the injection molding material cools, a first layer 210a and a second layer 210b are formed that adhere to the surface of the metal component 10, thus forming a double-layer fixing part 210.

[0091] See Figure 7 The first layer includes a front layer 212, a front inclined layer 212a, an upper layer 211, an outer layer 213, and a front edge layer 214. The front layer 212 is attached to the front surface of the first plate 110. The upper layer 211 is attached to the upper surface of the second plate 120, and mainly to the front portion of the second plate 120. The outer layer 213 has two locations, each attached to the outer surface of one of the two reinforcing plates 130. The front inclined layer 212a is attached to the front surface of the latch mounting plate 160, and exposes the middle portion of the latch mounting plate 160; that is, the front inclined layer covers the edge portion of the latch mounting plate 160. The front edge layer 214 also has two locations, each attached to the front surface of one of the two end plates 140, and each of the two front edge layers 214 exposes one of the two second connecting holes 141.

[0092] See Figure 8 The second layer includes rear layers 216', 216"', 216"', a rear-sloping layer 216a, a lower layer 215, an inner layer 217, and a rear side layer 218. The rear layers 216', 216"', and 216"' are attached to the rear surface of the first plate 110. The lower layer 215 is attached to the lower surface of the second plate 120, and primarily to the front portion of the second plate 120. The inner layer 217 has two locations, each attached to the inner surface of one of the two reinforcing plates 130. The rear-sloping layer 216a is attached to the rear surface of the latch mounting plate 160. The rear side layer 218 also has two locations, each attached to the rear surface of one of the two end plates 140, and each of the two rear side layers 218 exposes one of the two second connecting holes 271.

[0093] It should be noted that the front layer 212, the rear layers 216', 216" and 216"' do not necessarily completely cover the front and rear surfaces of the first plate 110, and the upper layer 211 does not necessarily completely cover the front part of the second plate 120. Rather, viewed as a whole, the first plate 110 can be wrapped by the front layer 212 and the rear layers 216', 216" and 216"', and the second plate 120 can be wrapped by the upper layer 211 and the lower layer 215. In other words, the outer wrapping layer formed by the first and second layers does not necessarily completely cover the metal component 10, but rather wraps around the outside of the metal component 10 as a whole. In other words, the metal component 10 may be partially exposed outside the double-layer fixing part 210, and these parts do not form a sandwich structure. Therefore, the outer wrapping layer and sandwich structure mentioned in this article should be understood in relation to the whole.

[0094] See also Figures 8 to 10 The injection-molded component 20 also includes a strip plate 230 and cross reinforcements 220. The strip plate 230 is located between two inner layers 217, with its two ends connected to the bottoms of the two inner layers 217 respectively. A receiving space is formed between the strip plate 230 and the lower layer 215, and the cross reinforcements 220 are disposed within the receiving space. By providing multiple cross reinforcements 220 between the strip plate 230 and the lower layer 215, the strength of the double-layer fixing part 210 can be enhanced, thereby increasing the rear panel 1's resistance to deformation.

[0095] The cross reinforcement 220 includes intersecting first reinforcing ribs 221 and second reinforcing ribs 222. The first reinforcing ribs 221 and second reinforcing ribs 222 are obliquely disposed between the lower layer 215 and the strip plate 230. Furthermore, the upper edges of the first reinforcing ribs 221 and second reinforcing ribs 222 are connected to the lower layer 215, and the lower edges of the first reinforcing ribs 221 and second reinforcing ribs 222 are connected to the strip plate 230.

[0096] A rear layer 216' corresponding to the cross reinforcement 220 is formed in front of the cross reinforcement 220, and the rear layer 216' corresponds to and is connected to the cross reinforcement 220. Specifically, the first reinforcing rib 221 and the second reinforcing rib 222 extend forward to the rear surface of the first plate 110, and a rear layer 216' is formed at the position corresponding to the first reinforcing rib 221 and the second reinforcing rib 222, which is attached to the first plate 110. Both the first reinforcing rib 221 and the second reinforcing rib 222 are connected to the rear layer 216'.

[0097] A reinforcing column 223 is formed at the intersection of the first reinforcing rib 221 and the second reinforcing rib 222. A through hole 112 is formed on the first plate 110 at the position corresponding to the reinforcing column 223, through which the reinforcing column 223 passes. A front layer 212 formed on the front surface of the first plate 110 can cover the through hole 112. Thus, the reinforcing column 223 passes through the through hole 112 and connects to the front layer 212, making the overall integrity of the double-layer fixing structure stronger and enhancing its overall strength.

[0098] See also Figure 8 , Figure 11 , Figure 12 , Figure 13 The rear panel 1 also has a rear bumper cover mounting portion 240 for mounting a rear bumper cover 4. In some exemplary embodiments, there are two rear bumper cover mounting portions 240, which are symmetrically arranged on the left and right sides, and each rear bumper cover mounting portion 240 is formed between some cross reinforcement structures, that is, each rear bumper cover mounting portion is connected to several cross reinforcement portions 220.

[0099] The rear bumper cover mounting section 240 includes an upper plate 241, a lower plate 242, and a vertical plate 243. The upper plate 241 is sequentially connected to a portion of the first reinforcing rib 221 and the second reinforcing rib 222 of the cross-reinforcing section 220, and the lower plate 242 is sequentially connected to the same first reinforcing rib 221 and the second reinforcing rib 222 of the cross-reinforcing section 220. Thus, the upper plate 241 and the lower plate 242 are supported by several cross-reinforcing structures. A gap exists between the upper plate 241 and the lower plate 242 for installing the rear bumper cover 4. When installing the rear bumper cover 4, the mounting portion of the rear bumper cover 4 can be inserted into the gap.

[0100] The rear end of the lower plate 242 protrudes rearward relative to the upper plate 241, meaning that the rearward extension of the lower plate 242 is greater than that of the upper plate 241. A locking block 244 is formed on the rear end of the lower plate 242. The locking block 244 is used to engage the rear bumper cover 4. After the rear bumper cover 4 is installed into the rear bumper cover mounting portion 240, the locking block 244 can engage with the locking groove provided in the mounting portion of the rear bumper cover 4 to prevent the rear bumper cover 4 from detaching from the rear bumper cover mounting portion. Multiple locking blocks 244 are provided, distributed along the left-right direction at the rear end of the lower plate 242.

[0101] A rear layer 216” is formed at the front of the rear bumper cover mounting portion 240, corresponding to the rear bumper cover mounting portion 240, and the rear layer 216” is connected to the rear bumper cover mounting portion 240. Specifically, the upper plate 241, lower plate 242, and vertical plate 243 all extend forward to the first plate 110, and a rear layer 216” is formed at a position corresponding to the upper plate 241, lower plate 242, and vertical plate 243, which is attached to the first plate 110, and the upper plate 241, lower plate 242, and vertical plate 243 are all connected to the rear layer 216”.

[0102] See also Figure 8 , Figure 14 The double-layer fixing part 210 also includes a latch mounting plate support part 250, which is located on the rear side of the latch mounting plate 160. Furthermore, the latch mounting plate support part 250 is formed between the lower layer 215 and the strip plate 230 at a position corresponding to the latch mounting plate 160, and is used to support the latch mounting plate 160. It can prevent changes in the position or shape of the latch mounting plate 160, thereby increasing the strength of the rear panel 1.

[0103] The latch mounting plate support portion 250 includes vertical support plates 251, 252, and 253, a horizontal support plate 254, and diagonal support plates 255 and 256. The vertical support plates 251, 252, and 253 are distributed along the left-right direction and correspond to the left, middle, and right sides of the latch mounting plate 160, respectively. The horizontal support plate 254 connects to the vertical support plates 251, 252, and 253 and corresponds to the lower end of the latch mounting plate 160. The diagonal support plate 255 is located between the vertical support plates 251 and 252, with its lower edge connected to the lower edge of the vertical support plate 251 and its upper edge connected to the connection point between the horizontal support plate 254 and the vertical support plate 252. The diagonal support plate 256 is located between the vertical support plates 252 and 253, with its lower edge connected to the lower edge of the vertical support plate 253 and its upper edge connected to the connection point between the horizontal support plate 254 and the vertical support plate 252.

[0104] The rear layer 216”' is attached to the rear surface of the first size reduction portion 111. The lower portions of the vertical support plates 251, 252, 253 and the inclined support plates 255, 256 extend forward and connect to the rear layer 216”'. The upper portions of the vertical support plates 251, 252, 253 and the inclined support plates 255, 256, as well as the horizontal support plate 254, extend forward and connect to the rear inclined layer 216a.

[0105] See Figure 14 The two latch mounting holes 161 on the latch mounting plate 160 are located between the vertical support plates 251 and 253, and on the left and right sides of the vertical support plate 252.

[0106] See Figure 3The locking mounting plate 160 also has three through holes 162. One through hole 162 is located between two locking mounting holes 161 and corresponds to the upper end of the middle vertical support plate. The other two through holes 162 are located below the two locking mounting holes 161 and correspond to the horizontal support plate 254. During the injection molding of the injection-molded component 20, molten plastic is injected into the three through holes 162. After the molten plastic cools, it forms three fixing posts 257, such as... Figure 1 As shown, the three fixed columns 257 are connected to the upper end of the vertical support plate and the left and right ends of the horizontal support plate 254, respectively.

[0107] See Figure 3 The locking mounting plate 160 also has a connecting groove 163, which connects to three through holes 162. During the injection molding of the component 20, the connecting groove 163 is filled with molten plastic and eventually cools into a fixing post connecting part 258 capable of connecting the three fixing posts 257. Figure 1 As shown.

[0108] See also Figure 9 , Figure 11 , Figure 12 The lower surface of the lower layer 215 has a plurality of spaced-apart guide blocks 260, which are evenly spaced and each guide block 260 extends rearward beyond the lower layer 215. During rain or car washing, water can flow along the sealing strip and eventually drain through the gaps between the guide blocks 260 to the rear side of the rear panel 1.

[0109] The upper surface of each guide block 260 beyond the lower layer 215 is a slope 261 that gradually slopes downward from the lower layer 215.

[0110] See Figure 7 and Figure 8 The injection-molded component 20 also has a connecting portion 270 located below the double-layer fixing portion 210 for connecting to the rear floor 3 of the vehicle.

[0111] When installing the rear panel 1, the double-layer fixing part 210 and the metal component 10 it wraps are connected to the side panel 2 of the vehicle, while the connecting part 270 is connected to the rear floor 3 of the vehicle.

[0112] The connecting part 270 has a plurality of connecting holes 271 formed thereon, so that bolts can pass through the connecting holes 271 and be tightened to the rear floor 3 of the vehicle to connect the connecting part 270 to the rear floor 3 of the vehicle.

[0113] See Figure 15On the rear surface of the connecting portion 270, an inner ring portion 272 and an outer ring portion 273 are formed corresponding to each connecting hole 271 to enhance the structural strength at the connecting hole 271. Specifically, the inner circumference of the inner ring portion 272 corresponds to the connecting hole 271 and has the same diameter, the outer ring portion 273 is sleeved on the outer side of the inner ring portion 272, and the inner ring portion 272 and the outer ring portion 273 are connected by a plurality of connecting ribs 274.

[0114] Continue reading Figure 7 and Figure 8 The injection-molded component 20 also has a tire clearance area 280, which is located below the double-layer fixing part 210 and between the double-layer fixing part 210 and the connecting part 270. The connecting part 270 protrudes forward relative to the double-layer fixing part 210 and the tire clearance area 280 to connect to the rear floor 3 of the vehicle. In other words, the double-layer fixing part 210 and the tire clearance area 280 bulge rearward relative to the connecting part 270. After the spare tire is placed in the vehicle floor, a portion of the rear of the spare tire is located within the space where the tire clearance area 280 clearances rearward. The rearward bulge of both the double-layer fixing part 210 and the tire clearance area 280 facilitates the placement of the spare tire from top to bottom on the rear floor 3 of the vehicle.

[0115] See Figure 7 The front surface of the tire clearance area 280 has multiple crisscrossing reinforcing protrusions 291. Part of the multiple reinforcing protrusions 291 extends along the left and right direction, and another part of the multiple reinforcing protrusions 291 extends along the up and down direction, so that the multiple reinforcing protrusions 291 can form a mesh-like reinforcing structure.

[0116] See Figure 8 Multiple crisscrossing reinforcing protrusions 292 are also formed on the rear surfaces of the tire clearance area 280 and the connecting portion 270. A portion of each reinforcing protrusion 292 extends in the left-right direction, while another portion extends in the up-down direction, thus forming a mesh-like reinforcing structure. Each reinforcing protrusion 292 spans the rear surfaces of the tire clearance area 280 and the connecting portion 270, ensuring the integrity of the mesh-like reinforcing structure.

[0117] See Figure 8 The edge of the rear surface of the injection molded component 20 is formed with a reinforcing protrusion 293, which can enhance the strength of the edge of the injection molded component 20.

[0118] This utility model also provides a vehicle that uses a rear bulkhead 1 with a metal-plastic composite structure provided by this utility model. The vehicle includes a side panel 2 and a rear floor 3, with the rear bulkhead 1 connected to the side panel 2 and the rear floor 3. Specifically, a double-layer fixing portion 210 of the metal component 10 and the injection-molded component 20 is connected to the side panel 2, and a connecting portion 270 of the injection-molded component 20 is connected to the rear floor 3. A waterproof strip is provided between the rear floor 3 and the rear bulkhead 1 to improve the sealing of the vehicle interior.

[0119] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and descriptive purposes. It is not intended to be exhaustive, nor to limit the invention to the precise forms disclosed; obviously, many changes and variations are possible in accordance with the foregoing teachings. The exemplary embodiments were chosen and described to explain the specific principles of the invention and its practical application, thereby enabling others skilled in the art to implement and utilize various exemplary embodiments of the invention, as well as their different alternatives and modifications. The scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle rear panel with a metal-embedded injection-molded composite structure, characterized in that, include: The metal component has its left and right ends connected to the side panels of the vehicle, and its middle section can be used to install the tailgate latch. The injection-molded component has a top layer forming a double-layer fixing part, which includes a first layer and a second layer. A connecting part is also formed below the double-layer fixing part for connecting to the rear floor of the vehicle. The metal component is located between the first layer and the second layer, such that the first layer and the second layer become an outer wrapping layer, closely adhering to the surface of the metal component, thereby forming a sandwich structure, which fixes the metal component to the top of the injection-molded component.

2. The vehicle rear panel with a metal-embedded injection-molded composite structure according to claim 1, characterized in that, The metal component includes: First board; The second plate has its front edge connected to the upper edge of the first plate and extends rearward from the upper edge of the first plate. The rear portion of the second plate is inclined upward and exposed outside the outer wrapping layer for mounting a sealing strip. The two ends of the rear portion of the second plate each have a first connecting hole. Two reinforcing plates are located at the two ends of the metal component, respectively. The front edge of each reinforcing plate is connected to the first plate, and the upper edge is connected to the two ends of the front portion of the second plate. Two end plates are located at the two ends of the metal component, and a second connecting hole is formed on each end plate. Each end plate extends from the rear edge of the reinforcing plate on the same side to the outside of the metal component, and the upper edge of each end plate is connected to the end of the rear part of the second plate. The first connecting hole and the second connecting hole are used to insert bolts.

3. The vehicle rear panel with a metal-embedded injection-molded composite structure according to claim 2, characterized in that, A first size reduction portion is formed in the middle of the first plate, and a second size reduction portion is formed in the middle of the second plate corresponding to the first size reduction portion; The metal component further includes: Two triangles, each triangle having its first side connected to the first plate and its second side connected to the second plate; A latch mounting plate for mounting a tailgate latch of a vehicle, wherein the lower edge of the latch mounting plate is connected to the first size reduction part, the upper edge of the latch mounting plate is connected to the second size reduction part, and the left and right edges of the latch mounting plate are respectively connected to the third side of two triangular plates. Two triangular plates are symmetrically connected to the left and right sides of the latch mounting plate, and the included angle between each of the two triangular plates and the latch mounting plate is an obtuse angle.

4. The vehicle rear panel with a metal-embedded injection-molded composite structure according to claim 3, characterized in that, The first layer includes: The front layer is attached to the front surface of the first plate; The upper layer is attached to the upper surface of the second plate and exposes the rear portion of the second plate; A forward-sloping layer that adheres to the front surface of the latch mounting plate; Two outer layers are attached to the outer surfaces of the two reinforcing plates, respectively; Two front layers are respectively attached to the front surfaces of the two end plates, and each exposes two second connection holes; The second layer includes: The rear layer is attached to the rear surface of the first plate; The lower layer is attached to the lower surface of the second plate and exposes the rear portion of the second plate; A rear-sloping layer that adheres to the rear surface of the latch mounting plate; Two inner layers are attached to the inner surfaces of the two reinforcing plates, respectively; Two rear layers are attached to the rear surfaces of the two end plates, and the second connection holes are exposed respectively.

5. The vehicle rear panel with a metal-embedded injection-molded composite structure according to claim 4, characterized in that, The injection-molded component further includes: A strip plate is formed between two inner layers, and the two ends of the strip plate are respectively connected to the bottom of the two inner layers; The cross reinforcement includes an intersecting first reinforcing rib and a second reinforcing rib, which are obliquely disposed between the lower layer and the strip plate. The upper edges of the first and second reinforcing ribs are connected to the lower layer, and the lower edges of the first and second reinforcing ribs are connected to the strip plate.

6. The vehicle rear panel with a metal-embedded injection-molded composite structure according to claim 5, characterized in that, Multiple intersecting reinforcement sections are formed between the lower layer and the strip plate; The rear layer includes a first rear layer, and the rear surface of the first plate is fitted with the first rear layer corresponding to the position of each cross reinforcement. Each of the cross reinforcement portions has a first reinforcing rib and a second reinforcing rib extending forward and connecting to the first rear layer; Each of the aforementioned cross reinforcements further includes a reinforcing post formed at the intersection of the first reinforcing rib and the second reinforcing rib; The first plate has a through hole at the position corresponding to the reinforcing post. The front layer can cover the through hole, and the reinforcing post passes through the through hole and connects to the front layer.

7. The vehicle rear panel with a metal-embedded injection-molded composite structure according to claim 6, characterized in that, Two rear bumper cover mounting portions are formed between the cross reinforcement structures, and the rear bumper cover mounting portions include: The upper plate is sequentially connected to the first and second reinforcing ribs of the cross-reinforcing structure; The lower plate, which is sequentially connected to the first and second reinforcing ribs of the cross-reinforcing structure, and whose rear end protrudes rearward relative to the upper plate; and A vertical plate that connects the upper plate and the lower plate; The upper plate and the lower plate have a gap for installing a rear bumper cover, and the rear end of the lower plate has a plurality of locking blocks for engaging the rear bumper cover, the plurality of locking blocks being distributed along the left and right direction. The rear layer further includes a second rear layer, and the second rear layer is attached to the rear surface of the first plate corresponding to the position of each rear bumper cover mounting part; Each of the rear bumper mounting sections has an upper plate, a lower plate, and a vertical plate that extend forward and connect to the second rear layer.

8. The vehicle rear panel with a metal-embedded injection-molded composite structure according to claim 4, characterized in that, A latching mounting plate support is further formed between the lower layer and the strip plate, the latching mounting plate support comprising: Three vertical support plates, the upper edge of each of the vertical support plates is connected to the lower layer, and the lower edge of each of the vertical support plates is connected to the strip plate. The three vertical support plates are distributed at equal intervals along the left and right directions and correspond to the left, middle and right sides of the latch mounting plate, respectively. A horizontal support plate, which connects to three vertical support plates and corresponds to the lower end of the latch mounting plate; and Two inclined support plates are formed on both sides of the vertical support plate located in the middle, and the lower edge of each inclined support plate is connected to the lower edge of the vertical support plate, and the upper edge of each inclined support plate is connected to the connection between the horizontal support plate and the vertical support plate located in the middle. The rear layer includes a third rear layer, which is attached to the rear surface of the first size-reduced portion of the first plate; Three vertical support plates, a horizontal support plate, and two diagonal support plates extend forward, wherein the lower portions of the three vertical support plates and the two diagonal support plates extend to connect with the third rear layer, while the upper portions of the three vertical support plates and the two diagonal support plates, as well as the horizontal support plate, extend to connect with the rear inclined layer.

9. The vehicle rear panel with a metal-embedded injection-molded composite structure according to claim 8, characterized in that, The latch mounting plate is formed with; Two latch mounting holes are located on both sides of the central vertical support plate. Three through holes, one of which is located between the two latch mounting holes and corresponds to the middle vertical support plate, and the other two through holes are located below the two latch mounting holes and correspond to the horizontal support plate. A connecting groove that connects to three through holes; The latch mounting plate support portion further includes: Three fixed columns pass through three through holes and are connected to the central vertical support plate and horizontal support plate, respectively. The fixed column connecting part is located in the connecting groove and connects the three fixed columns.

10. The vehicle rear panel with a metal-embedded injection-molded composite structure according to claim 4, characterized in that, The lower surface of the lower layer forms a plurality of spaced-apart guide blocks, each of which extends backward and beyond the lower layer, and the upper surface of the portion of each guide block that extends beyond the lower layer is a slope.

11. The vehicle rear panel with a metal-embedded injection-molded composite structure according to claim 1, characterized in that, The connecting part has multiple connecting holes, and an outer ring and an inner ring are formed on its rear surface corresponding to the positions of the connecting holes. The outer ring is fitted outside the inner ring and connected by multiple connecting ribs. The inner circumference of the inner ring corresponds to the connecting holes and has the same diameter.

12. The vehicle rear panel with a metal-embedded injection-molded composite structure according to claim 1, characterized in that, The injection-molded component also forms a tire clearance area, which is located below the double-layer fixing part and between the double-layer fixing part and the connecting part, wherein the connecting part protrudes forward relative to the double-layer fixing part and the tire clearance area.

13. The vehicle rear panel with a metal-embedded injection-molded composite structure according to claim 12, characterized in that, The front surface of the tire avoidance zone forms a first reinforcing protrusion with crisscrossing patterns; The rear surface of the tire clearance area and the connecting portion is formed with intersecting second reinforcing protrusions; The rear surface edge of the injection-molded component forms a third reinforcing protrusion.

14. A vehicle, characterized in that, include: Side panel; Rear floor; The vehicle rear panel of the metal-embedded injection-molded composite structure according to any one of claims 1-13 is connected to the side panel and the rear floor; A waterproof strip is provided between the rear floor and the vehicle rear panel of the metal-embedded injection-molded composite structure.

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