Sectional type tail gate structure, tail gate assembly process and vehicle

Abstract

The invention discloses a sectional type tail door structure, a tail door assembling technology and a vehicle, the sectional type tail door structure comprises a tail door outer plate assembly, the tail door outer plate assembly comprises a tail door outer plate upper section, a tail door outer plate middle section and a tail door outer plate lower section, the upper portion of the tail door outer plate middle section is connected with the lower portion of the tail door outer plate upper section, and the tail door outer plate upper section is connected with the tail door outer plate middle section. The lower portion of the tail door outer plate middle section is connected with the upper portion of the tail door outer plate lower section, and the tail door outer plate middle section integrates the function of a tail lamp mask. According to the sectional type tail door structure, the requirement for injection molding equipment is lowered, the equipment investment is reduced, meanwhile, light weight is achieved, and the appearance attractiveness is improved. According to the tail door assembly process, the turnover frequency of materials can be reduced, the number of tools is reduced, and the occupied area of an assembly site is reduced. The vehicle disclosed by the invention comprises the sectional type tail door structure.

Description

Technical Field

[0001] The invention relates to a vehicle structure, and in particular to a segmented tailgate structure, a tailgate assembly process and a vehicle. Background Art

[0002] At present, plastic tailgates have been used in some mid-to-high-end electric vehicles. In order to achieve a longer driving range, lightweighting is a key research task for electric vehicles. Among them, plastic tailgates replacing sheet metal tailgates are an effective solution. Due to the limitations of sheet metal stamping technology, sheet metal tailgates cannot form shapes with large depth, small rounded corners, and complex structures. Plastic tailgates use injection molding technology and can form shapes with large depth, small rounded corners, and complex structures. Plastic tailgates enrich the shape of vehicle tailgates and bring some new styling highlights. Although the current plastic tailgate has made some progress in reducing weight and enriching the shape, the current plastic tailgate installs taillights and the way to penetrate the taillights is the same as the traditional sheet metal tailgate. Therefore, when the through-taillight is installed on the plastic tailgate, the matching gap between the plastic tailgate and the through-taillight is still large, and the problems of uneven matching gap, uneven surface difference, and low qualified rate of through-taillight assembly have not yet been solved. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a segmented tailgate structure, which reduces the requirements for injection molding equipment, reduces equipment investment, and at the same time achieves lightweight and improves appearance; an object of the present invention is also to provide a tailgate assembly process, which can reduce the turnover times of materials, reduce the number of tooling, and reduce the floor space occupied by the assembly site; an object of the present invention is also to provide a vehicle, including the above-mentioned segmented tailgate structure.

[0004] A segmented tailgate structure in the present invention includes a tailgate outer panel assembly, wherein the tailgate outer panel assembly includes an upper section of the tailgate outer panel, a middle section of the tailgate outer panel and a lower section of the tailgate outer panel, wherein the upper section of the middle section of the tailgate outer panel is connected to the lower section of the upper section of the tailgate outer panel, the lower section of the middle section of the tailgate outer panel is connected to the upper section of the lower section of the tailgate outer panel, and the middle section of the tailgate outer panel is integrated with a taillight mask function.

[0005] Furthermore, the upper section of the tailgate outer panel and the lower section of the tailgate outer panel are both single-color injection-molded parts using non-transparent materials, and the middle section of the tailgate outer panel is a double-layer two-color injection-molded part using transparent materials and non-transparent materials.

[0006] Furthermore, the middle section of the tailgate outer panel includes a first non-light-transmitting area, a light-transmitting area and a second non-light-transmitting area, the upper part of the light-transmitting area is connected to the lower part of the first non-light-transmitting area, the lower part of the light-transmitting area is connected to the upper part of the second non-light-transmitting area, there is a gap between the first non-light-transmitting area and the second non-light-transmitting area, and the middle part of the light-transmitting area corresponds to the position of the gap to realize the integrated taillight mask function.

[0007] Furthermore, the segmented tailgate structure also includes a tailgate inner panel and a taillight housing, wherein the tailgate inner panel is arranged at the front side of the tailgate outer panel assembly, and the taillight housing is arranged between the middle section of the tailgate outer panel and the tailgate inner panel.

[0008] Furthermore, the segmented tailgate structure also includes a tailgate glass, the upper part of the tailgate outer panel is an inverted "U" shape structure, the left part, the upper part and the right part of the tailgate glass are all connected to the upper part of the tailgate outer panel, the lower part of the tailgate glass is connected to the tailgate inner panel, and there is a accommodating space between the lower end of the tailgate glass and the tailgate inner panel, and the upper end of the first non-light-transmitting area extends into the accommodating space.

[0009] Further, the first non-light-transmitting area includes a first upper inclined portion, a first middle inclined portion and a first lower inclined portion, which are arranged in sequence from top to bottom, the first upper inclined portion is inclined rearward from top to bottom, the first middle inclined portion is inclined forward from top to bottom, the first lower inclined portion is inclined rearward from top to bottom, and a first mounting portion extending forward is provided at the connection between the first middle inclined portion and the first lower inclined portion; the second non-light-transmitting area includes a second upper inclined portion, a second middle inclined portion and a second lower bending portion, which are arranged in sequence from top to bottom, the second upper inclined portion is inclined forward from top to bottom, the second middle inclined portion is inclined rearward from top to bottom, and a second mounting portion extending forward is provided at the connection between the second upper inclined portion and the second middle inclined portion; the first mounting portion and the second mounting portion are both connected to the taillight housing by plastic welding or bonding.

[0010] Furthermore, the second lower bent portion includes a vertical portion arranged along the up-down direction and a horizontal portion arranged along the front-back direction, the vertical portion is connected to the second middle inclined portion, the front end of the horizontal portion is connected to the lower section of the tailgate outer panel, and a license plate light mounting hole is provided in the middle of the horizontal portion; a license plate mounting structure is provided on the lower section of the tailgate outer panel, and the license plate mounting structure is located below the license plate light mounting hole.

[0011] Furthermore, the upper section of the tailgate outer panel and the middle section of the tailgate outer panel, the upper section of the tailgate outer panel and the tailgate inner panel, the middle section of the tailgate outer panel and the tailgate inner panel, the tailgate glass and the upper section of the tailgate outer panel, the tailgate glass and the tailgate inner panel, and the lower section of the tailgate outer panel and the tailgate inner panel are all connected by bonding; the middle section of the tailgate outer panel and the lower section of the tailgate outer panel are connected by snapping and bonding.

[0012] A tailgate assembly process in the present invention is used to assemble a segmented tailgate structure, comprising the following steps: S1, assembling the middle section of the tailgate outer panel and the taillight housing to form a first assembly component; S2, assembling the first assembly component and the lower section of the tailgate outer panel to form a second assembly component; S3, assembling the second assembly component, the upper portion of the outer panel and the tailgate inner panel to form a third assembly component; S4. Assemble the third assembly component and the tailgate glass.

[0013] A vehicle in the present invention is characterized by comprising a segmented tailgate structure.

[0014] The beneficial effects of the present invention are: (1) The present invention simplifies the product structure by dividing the tailgate outer panel into three sections. The upper section, middle section and lower section of the tailgate outer panel are processed separately, which is convenient for injection molding and can avoid sacrificing part of the structure to ensure injection molding demolding. The appearance structure and shape after segmentation are more flexible. The process and material of the upper section, middle section and lower section of the tailgate outer panel can also be different. The process of integrating the taillight mask function in the middle section of the tailgate outer panel is relatively complicated, and the material also needs to be light-transmissive. Only the middle part of the tailgate outer panel assembly adopts double-layer injection molding, and the tailgate outer panel assembly as a whole does not need to use large-area double-layer injection molding, which reduces the requirements for injection molding equipment, reduces equipment investment, reduces labor costs, reduces materials, reduces product costs, and achieves lightweight.

[0015] (2) The tailgate outer panel middle section of the present invention integrates the taillight mask function, and there is no need to set up a taillight mask component separately, which reduces the weight of the tailgate and eliminates the assembly gap and assembly surface difference between the taillight mask and the tailgate outer panel. The connection position of the taillight housing of the through-type taillight and the middle section of the tailgate outer panel can be set behind the first non-light-transmitting area and the second non-light-transmitting area. The matching gap, surface difference and bonding structure between the taillight housing and the middle section of the tailgate outer panel are hidden by the non-light-transmitting area and are not visible from the outside. This effectively solves the problems of large matching gap, uneven gap, uneven surface difference, low matching qualification rate and long assembly time of the through-type taillight installation of traditional models, and can further improve the appearance.

[0016] (3) The present invention is not prone to water accumulation and has strong waterproof performance.

[0017] (4) The present invention integrates a license plate light installation hole on the lower section of the tailgate outer panel, and a license plate light can be installed at this position. The license plate light can provide lighting for the license plate installation structure. The through direction of the license plate light installation hole is along the up-down direction. After the tailgate outer panel is divided into three sections, the structure of the lower section of the tailgate outer panel is simple, and the structure of the license plate light installation hole does not affect the injection molding and demolding of the lower section of the tailgate outer panel. In addition, the horizontal portion can also block the view of the connection between the front end of the horizontal portion and the lower section of the tailgate outer panel, making the connection difficult to see, thereby reducing the assembly process requirements at this location. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration: Figure 1 is a rear view of the segmented tailgate structure of the present invention; Figure 2 is a cross-sectional schematic diagram of the segmented tailgate structure of the present invention; Figure 3 is a schematic cross-sectional view of the upper portion of the segmented tailgate structure of the present invention; Figure 4 It is a cross-sectional schematic diagram of the middle portion of the segmented tailgate structure of the present invention (the first mounting portion and the second mounting portion are both connected to the taillight housing by plastic welding); Figure 5 It is a cross-sectional schematic diagram of the middle portion of the segmented tailgate structure of the present invention (the first mounting portion and the second mounting portion are both connected to the taillight housing by bonding); Figure 6 It is a cross-sectional schematic diagram of the lower part of the segmented tailgate structure of the present invention (the middle section of the tailgate outer panel and the lower section of the tailgate outer panel are connected by adding an overlap structure and bonding); Figure 7 is a cross-sectional schematic diagram of the lower portion of the segmented tailgate structure of the present invention (the middle section of the tailgate outer panel and the lower section of the tailgate outer panel are connected by means of snap connection and bonding); Figure 8 It is a schematic diagram of the process flow of the tailgate assembly process of the present invention.

[0019] The markings in the accompanying drawings are as follows: 1-upper section of tailgate outer panel, 2-middle section of tailgate outer panel, 201-first non-light-transmitting area, 2011-first upper inclined portion, 2012-first middle inclined portion, 2013-first lower inclined portion, 2014-first mounting portion, 202-light-transmitting area, 203-second non-light-transmitting area, 2031-second upper inclined portion, 2032-second middle inclined portion, 2033-vertical portion, 2034-horizontal portion, 2035-second mounting portion, 2036-license plate light mounting hole, 3-lower section of tailgate outer panel, 301-license plate mounting structure, 4-tailgate inner panel, 5-taillight housing, 6-tailgate glass, 7-adhesive. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] like Figure 1-Figure 7 As shown, a segmented tailgate structure in this embodiment includes a tailgate outer panel assembly, wherein the tailgate outer panel assembly includes an upper tailgate outer panel section 1, a middle tailgate outer panel section 2 and a lower tailgate outer panel section 3, wherein the upper portion of the middle tailgate outer panel section 2 is connected to the lower portion of the upper tailgate outer panel section 1, the lower portion of the middle tailgate outer panel section 2 is connected to the upper portion of the lower tailgate outer panel section 3, and the middle tailgate outer panel section 2 is integrated with a taillight mask function.

[0022] In this embodiment, the tailgate outer panel upper section 1 and the tailgate outer panel lower section 3 are both single-color injection molded parts using non-transparent materials, and the tailgate outer panel middle section 2 is a double-layer double-color injection molded part using transparent materials and non-transparent materials.

[0023] In this embodiment, the middle section 2 of the tailgate outer panel includes a first non-light-transmitting area 201, a light-transmitting area 202 and a second non-light-transmitting area 203. The upper part of the light-transmitting area 202 is connected to the lower part of the first non-light-transmitting area 201, the lower part of the light-transmitting area 202 is connected to the upper part of the second non-light-transmitting area 203, and there is a gap between the first non-light-transmitting area 201 and the second non-light-transmitting area 203. The middle part of the light-transmitting area 202 corresponds to the position of the gap to realize the integrated taillight mask function.

[0024] By dividing the tailgate outer panel assembly into three sections, the product structure can be simplified. The upper section 1 of the tailgate outer panel, the middle section 2 of the tailgate outer panel, and the lower section 3 of the tailgate outer panel are processed separately, which is convenient for injection molding, and can avoid sacrificing part of the structure to ensure injection molding demolding. The appearance structure and shape after segmentation are more flexible. The process and material of the upper section 1 of the tailgate outer panel, the middle section 2 of the tailgate outer panel, and the lower section 3 of the tailgate outer panel can also be different. The process of integrating the taillight mask function in the middle section 2 of the tailgate outer panel is relatively complicated, and the material also needs to be light-transmissive. The tailgate outer panel assembly only uses double-layer injection molding in the middle part, and the tailgate outer panel assembly as a whole does not need to use large-area double-layer injection molding, which reduces the requirements for injection molding equipment, reduces equipment investment, reduces labor costs, reduces materials, reduces product costs, and achieves lightweight at the same time.

[0025] In addition, the taillight mask function is integrated into the middle section 2 of the tailgate outer panel, and there is no need to set up a separate taillight mask component, which reduces the weight of the tailgate and eliminates the assembly gap and assembly surface difference between the taillight mask and the tailgate outer panel. The connection position of the taillight housing 5 of the through-taillight and the middle section 2 of the tailgate outer panel can be set after the first non-light-transmitting area 201 and the second non-light-transmitting area 203. The matching gap, surface difference and bonding structure between the taillight housing 5 and the middle section 2 of the tailgate outer panel are hidden by the non-light-transmitting area 202 and are not visible from the outside. This effectively solves the problems of large matching gaps, uneven gaps, uneven surface differences, low matching qualification rate and long assembly time for through-taillights in traditional models, and can further improve the appearance.

[0026] The tailgate outer panel middle section 2 is made of two-color material injection molding at one time, and the tailgate outer panel middle section 2 can be made of PMMA material or PC material. If PMMA material is used for molding, the outer side of the tailgate outer panel middle section 2 does not need to be processed in any way. If PC material is used for molding, UV light curing paint needs to be sprayed on the outer side of the tailgate outer panel middle section 2. The material of the tailgate outer panel upper section 1 and the tailgate outer panel lower section 3 is non-transparent material, and non-transparent PC or non-transparent PC+ABS or PP material or PP modified material can be used.

[0027] In this embodiment, the segmented tailgate structure further includes a tailgate inner panel 4 and a taillight housing 5. The tailgate inner panel 4 is disposed at the front side of the tailgate outer panel assembly, and the taillight housing 5 is disposed between the tailgate outer panel middle section 2 and the tailgate inner panel 4. The taillight housing 5 is preferably a housing that penetrates the taillight.

[0028] In this embodiment, the segmented tailgate structure further includes a tailgate glass 6. The tailgate outer panel upper section 1 is an inverted "U"-shaped structure. The left, upper and right parts of the tailgate glass 6 are connected to the tailgate outer panel upper section 1. The lower part of the tailgate glass 6 is connected to the tailgate inner panel 4. There is an accommodation space between the lower end of the tailgate glass 6 and the tailgate inner panel 4. The upper end of the first non-light-transmitting area 201 extends into the accommodation space. The tailgate outer panel upper section 1 is an inverted "U"-shaped structure. The two lower ends on the left and right sides of the opening are connected to the tailgate outer panel middle section 2.

[0029] The lower end of the tailgate glass 6 is outside, and the upper end of the middle section 2 of the tailgate outer panel is inside. Such a structure can ensure that the appearance of the overlap is smooth and without steps. When water flows from top to bottom, the resistance is small and water is not easy to accumulate. At the same time, it plays a waterproof role.

[0030] In this embodiment, the first non-light-transmitting area 201 includes a first upper inclined portion 2011, a first middle inclined portion 2012 and a first lower inclined portion 2013 which are arranged in sequence from top to bottom, the first upper inclined portion 2011 is inclined backward from top to bottom, the first middle inclined portion 2012 is inclined forward from top to bottom, the first lower inclined portion 2013 is inclined backward from top to bottom, and a first mounting portion 2014 extending forward is arranged at the connection between the first middle inclined portion 2012 and the first lower inclined portion 2013; the second non-light-transmitting area 203 includes a second upper inclined portion 2031, a second middle inclined portion 2032 and a second lower bending portion which are arranged in sequence from top to bottom, the second upper inclined portion 2031 is inclined forward from top to bottom, the second middle inclined portion 2032 is inclined backward from top to bottom, and a second mounting portion 2035 extending forward is provided at the connection between the second upper inclined portion 2031 and the second middle inclined portion 2032; the first mounting portion 2014 and the second mounting portion 2035 are both connected to the taillight housing 5 by plastic welding or bonding.

[0031] The positions of the first mounting portion 2014 and the second mounting portion 2035 are both in the non-light-transmitting area 202 , and the matching gap, surface difference and bonding structure between the taillight housing 5 and the middle section 2 of the tailgate outer panel are all hidden by the non-light-transmitting area 202 and are not visible from the outside.

[0032] The tailgate glass 6 and the first upper inclined portion 2011 are both inclined backward from top to bottom, so that water has little resistance when flowing downward from top to bottom, and water is not easy to accumulate. In addition, it is preferred that the position of the rear end vertex of the connecting corner of the first upper inclined portion 2011 and the first middle inclined portion 2012 is further back than the light-transmitting area 202, so that the first upper inclined portion 2011 and the first middle inclined portion 2012 have a certain rain-shielding effect, and rainwater carrying impurities flows down from the tailgate glass 6 and the first upper inclined portion 2011, and basically does not fall on the light-transmitting area 202, thereby reducing turbid liquid stains in the light-transmitting area 202.

[0033] In this embodiment, the second lower bending portion includes a vertical portion 2033 arranged along the up-down direction and a horizontal portion 2034 arranged along the front-back direction, the vertical portion 2033 is connected to the second middle inclined portion 2032, the front end of the horizontal portion 2034 is connected to the lower section 3 of the tailgate outer panel, and the middle part of the horizontal portion 2034 is provided with a license plate light mounting hole 2036; a license plate mounting structure 301 is provided on the lower section 3 of the tailgate outer panel, and the license plate mounting structure 301 is located below the license plate light mounting hole 2036.

[0034] The license plate light installation hole 2036 is integrated on the lower section 3 of the tailgate outer panel, and the license plate light can be installed at this position, and the license plate light can provide lighting for the license plate installation structure 301. The license plate light installation hole 2036 is passed through in the up-down direction. After the tailgate outer panel is divided into three sections, the structure of the lower section 3 of the tailgate outer panel is simple, and the structure of the license plate light installation hole 2036 does not affect the injection molding and demoulding of the lower section 3 of the tailgate outer panel.

[0035] The horizontal portion 2034 can also block the view of the connection between the front end of the horizontal portion 2034 and the lower section 3 of the tailgate outer panel, making the connection difficult to see and reducing the assembly process requirements at this location.

[0036] It is worth noting that the vertical portion 2033 is arranged along the up-down direction, which does not mean that the vertical portion 2033 is completely parallel to the up-down direction, and the vertical portion 2033 is allowed to have a small angle with the up-down direction. The horizontal portion 2034 is arranged along the front-back direction, which does not mean that the horizontal portion 2034 is completely parallel to the front-back direction, and the horizontal portion 2034 is allowed to have a small angle with the front-back direction. The angle between the vertical portion 2033 and the horizontal portion 2034 can be 85°-95°.

[0037] In this embodiment, the upper section 1 of the tailgate outer panel and the middle section 2 of the tailgate outer panel, the upper section 1 of the tailgate outer panel and the tailgate inner panel 4, the middle section 2 of the tailgate outer panel and the tailgate inner panel 4, the tailgate glass 6 and the upper section 1 of the tailgate outer panel, the tailgate glass 6 and the tailgate inner panel 4, and the lower section 3 of the tailgate outer panel and the tailgate inner panel 4 are all connected by bonding; the middle section 2 of the tailgate outer panel and the lower section 3 of the tailgate outer panel are connected by snapping and bonding.

[0038] Soft glue, structural glue or other adhesives 7 are arranged at the bonding position, which have both connecting and sealing functions.

[0039] like Figure 7 As shown, the tailgate outer panel middle section 2 and the tailgate outer panel lower section 3 are connected by means of clamping and bonding. Since the horizontal portion 2034 is arranged along the front-to-back direction, the overlap size with the tailgate outer panel lower section 3 is small, so both clamping and bonding are used. Figure 6 As shown, the tailgate outer panel middle section 2 and the tailgate outer panel lower section 3 may also be connected by adding an overlap structure and bonding.

[0040] like Figure 8 As shown, a tailgate assembly process in this embodiment is used to assemble a segmented tailgate structure, including the following steps: S1, assembling the tailgate outer panel middle section 2 and the taillight housing 5 to form a first assembly component; S2, assembling the first assembly component and the tailgate outer panel lower section 3 to form a second assembly component; S3, assembling the second assembly component, the upper portion of the outer panel and the tailgate inner panel 4 to form a third assembly component; S4, assembling the third assembly component and the tailgate glass 6.

[0041] The number of tailgate parts increases, and the connection is basically glued, so the assembly order of the parts is more important. The tailgate assembly process of this embodiment can reduce the turnover times of materials, the number of tooling, and the floor space of the assembly site, and is a relatively economical assembly process solution.

[0042] A vehicle in this embodiment is characterized by comprising a segmented tailgate structure.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A segmented tailgate structure, characterized in that: The invention comprises a tailgate outer panel assembly, wherein the tailgate outer panel assembly comprises an upper tailgate outer panel section (1), a middle tailgate outer panel section (2) and a lower tailgate outer panel section (3), wherein the upper portion of the middle tailgate outer panel section (2) is connected to the lower portion of the upper tailgate outer panel section (1), the lower portion of the middle tailgate outer panel section (2) is connected to the upper portion of the lower tailgate outer panel section (3), and the middle tailgate outer panel section (2) is integrated with a taillight mask function.

2. The segmented tailgate structure according to claim 1, characterized in that: The upper section (1) of the tailgate outer panel and the lower section (3) of the tailgate outer panel are both single-color injection-molded parts made of non-transparent material, and the middle section (2) of the tailgate outer panel is a double-layer double-color injection-molded part made of transparent material and non-transparent material.

3. The segmented tailgate structure according to claim 2, characterized in that: The middle section (2) of the tailgate outer panel comprises a first non-light-transmitting area (201), a light-transmitting area (202) and a second non-light-transmitting area (203); the upper part of the light-transmitting area (202) is connected to the lower part of the first non-light-transmitting area (201); the lower part of the light-transmitting area (202) is connected to the upper part of the second non-light-transmitting area (203); there is a gap between the first non-light-transmitting area (201) and the second non-light-transmitting area (203); the middle part of the light-transmitting area (202) corresponds to the position of the gap to realize the integrated taillight mask function.

4. The segmented tailgate structure according to claim 3 is characterized in that: The segmented tailgate structure further comprises a tailgate inner panel (4) and a taillight housing (5), wherein the tailgate inner panel (4) is arranged on the front side of the tailgate outer panel assembly, and the taillight housing (5) is arranged between the middle section (2) of the tailgate outer panel and the tailgate inner panel (4).

5. The segmented tailgate structure according to claim 3, characterized in that: The segmented tailgate structure further comprises a tailgate glass (6); the upper section (1) of the tailgate outer panel is in an inverted "U"-shaped structure; the left portion, the upper portion and the right portion of the tailgate glass (6) are all connected to the upper section (1) of the tailgate outer panel; the lower portion of the tailgate glass (6) is connected to the tailgate inner panel (4); and a receiving space is provided between the lower end of the tailgate glass (6) and the tailgate inner panel (4); the upper end of the first non-light-transmitting area (201) extends into the receiving space.

6. The segmented tailgate structure according to claim 5, characterized in that: The first non-light-transmitting area (201) comprises a first upper inclined portion (2011), a first middle inclined portion (2012) and a first lower inclined portion (2013) which are arranged in sequence from top to bottom, the first upper inclined portion (2011) is inclined backward from top to bottom, the first middle inclined portion (2012) is inclined forward from top to bottom, the first lower inclined portion (2013) is inclined backward from top to bottom, and a first mounting portion (2014) extending forward is provided at the connection between the first middle inclined portion (2012) and the first lower inclined portion (2013); the second non-light-transmitting area (203 ) comprises a second upper inclined portion (2031), a second middle inclined portion (2032) and a second lower bent portion which are arranged in sequence from top to bottom, the second upper inclined portion (2031) is inclined forward from top to bottom, the second middle inclined portion (2032) is inclined backward from top to bottom, and a second mounting portion (2035) extending forward is arranged at the connection between the second upper inclined portion (2031) and the second middle inclined portion (2032); the first mounting portion (2014) and the second mounting portion (2035) are both connected to the taillight housing (5) by plastic welding or bonding.

7. The segmented tailgate structure according to claim 6, characterized in that: The second lower bent portion comprises a vertical portion (2033) arranged in the up-down direction and a horizontal portion (2034) arranged in the front-back direction, the vertical portion (2033) being connected to the second middle inclined portion (2032), the front end of the horizontal portion (2034) being connected to the lower section (3) of the tailgate outer panel, and a hole (2036) for mounting a license plate light is arranged in the middle of the horizontal portion (2034); a license plate mounting structure (301) is arranged on the lower section (3) of the tailgate outer panel, and the license plate mounting structure (301) is located below the license plate light mounting hole (2036).

8. The segmented tailgate structure according to claim 5, characterized in that: The upper section (1) of the tailgate outer panel and the middle section (2) of the tailgate outer panel, the upper section (1) of the tailgate outer panel and the inner panel (4), the middle section (2) of the tailgate outer panel and the inner panel (4), the tailgate glass (6) and the upper section (1) of the tailgate outer panel, the tailgate glass (6) and the inner panel (4), and the lower section (3) of the tailgate outer panel and the inner panel (4) are all connected by bonding; the middle section (2) of the tailgate outer panel and the lower section (3) of the tailgate outer panel are connected by snapping and bonding.

9. A tailgate assembly process, characterized in that: The method for assembling the segmented tailgate structure according to any one of claims 5 to 8 comprises the following steps: S1, assembling the tailgate outer panel middle section (2) and the taillight housing (5) to form a first assembly component; S2, assembling the first assembly component and the tailgate outer panel lower section (3) to form a second assembly component; S3, assembling the second assembly component, the upper section of the outer panel and the tailgate inner panel (4) to form a third assembly component; S4, assembling the third assembly component and the tailgate glass (6).

10. A vehicle, characterized in that: It comprises a segmented tailgate structure as described in any one of claims 1 to 8.

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