A fixing support and sealing box positioning method and tool for a vehicle charging structure

Abstract

The present application relates to the technical field of vehicle production, and particularly relates to a fixing support of a vehicle charging structure, a sealing box positioning method and a tool. The positioning method comprises the following steps: installing a bottom plate on one side of the fixing support away from the sealing box; making a positioning ring pass through the fixing support to the other side, wherein the outer contour of the positioning ring is offset outward by a set size based on the outer contour of the charging socket, and the set size is smaller than the gap between the opening of the sealing box and the periphery of the charging socket; and nesting the opening of the sealing box on the positioning ring. Through the positioning method, the relative position deviation between the fixing support and the sealing box is controlled within the allowable range, so that the charging socket can smoothly pass through the opening of the sealing box to complete installation, vehicle rework caused by positioning deviation is avoided, and assembly precision and qualification rate are improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle manufacturing technology, and in particular to a fixed bracket and sealing box positioning method and tooling for a vehicle charging structure. Background Technology

[0002] Bus charging sockets are typically mounted on the vehicle body using a fixed bracket. To meet waterproofing requirements, some models have a sealed box added to the front of the charging socket. The sealed box has an opening through which the charging socket protrudes, exposed to the outside for connection with the charging gun. After the fixed bracket and the sealed box are installed, their relative positions must meet the installation accuracy requirements of the charging socket.

[0003] A positioning fixture for welding a charging stand to a charging door is disclosed in the prior art. The positioning fixture includes a positioning part and a handle part. The positioning part is cylindrical and fits into a mounting hole on the charging stand. The handle part is tilted and fixed to the right end of the positioning part. The positioning part has a positioning protrusion, which is circular and fits into a sealing stop on the charging door. Several limiting blocks are evenly distributed on the left circumferential wall of the positioning part. During welding, the positioning protrusion is placed inside the sealing stop on the charging door, the left end of the positioning part is placed inside the mounting hole on the charging stand, and the limiting blocks abut against the charging stand.

[0004] However, this positioning fixture uses the mounting holes on the charging bracket and the sealing stop on the charging door as positioning references, positioning only the charging bracket and the charging door. When a sealing box needs to be installed on the fixed bracket, and the gap between the opening of the sealing box and the perimeter of the charging socket is only 1mm to facilitate the subsequent addition of sealing sealant, the relative positional accuracy between the fixed bracket and the sealing box becomes critical. This existing fixture does not address the positioning between the fixed bracket and the sealing box, making it difficult to meet the installation accuracy requirements under conditions of small gaps. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a technical solution that can accurately position the relative position of the fixing bracket and the sealing box of the charging socket.

[0006] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions: In a first aspect, embodiments of the present invention provide a method for positioning a fixed bracket and a sealing box of a vehicle charging structure, comprising: a positioning fixture including a base plate and a positioning ring, the positioning ring being disposed on one end face of the base plate; mounting the base plate on the side of the fixed bracket away from the sealing box; allowing the positioning ring to pass through the fixed bracket to the other side, wherein the outer contour of the positioning ring is offset outward by a predetermined dimension based on the outer contour of the charging socket, the predetermined dimension being smaller than the gap between the opening of the sealing box and the periphery of the charging socket; and nesting the opening of the sealing box onto the positioning ring.

[0007] As a further technical solution, the base plate is installed on the side of the fixed bracket away from the sealing box, including: the base plate has a fixing hole, the fixed bracket has a fixing bolt on the side away from the sealing box, and the fixing hole of the base plate is installed on the fixing bolt of the fixed bracket.

[0008] As a further technical solution, the sealing box and the fixing bracket are temporarily fixed by fixing pads, and the fixing pads have double-sided adhesive on both sides.

[0009] As a further technical solution, adhesive is applied between the fixed bracket and the sealing box to bond and fix the sealing box and the fixed bracket.

[0010] As a further technical solution, before applying the adhesive, an activator and a primer are brushed between the fixing bracket and the sealing box, and then left to cool for a set time.

[0011] Secondly, embodiments of the present invention also provide a fixed bracket and sealing box positioning fixture for a vehicle charging structure, including a base plate and a positioning ring; The positioning ring is disposed on one end face of the base plate; The base plate is provided with fixing holes for inserting fixing bolts from the fixing bracket. The outer contour of the positioning ring is offset outward by a set dimension based on the outer contour of the charging socket. The set dimension is smaller than the gap between the opening of the sealing box and the area around the charging socket. The positioning ring is used to pass through the fixed bracket and nest with the opening of the sealing box.

[0012] As a further technical solution, the base plate is provided with a first positioning point, and the positioning ring is provided with a second positioning point, with the first positioning point and the second positioning point aligned.

[0013] As a further technical solution, the base plate and the positioning ring are aligned through the first positioning point and the second positioning point, and then connected internally by spot welding.

[0014] As a further technical solution, the base plate has a hollow structure in the middle.

[0015] As a further technical solution, the positioning ring has a hollow structure in the middle.

[0016] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages: The base plate of the positioning fixture is installed on the side of the fixed bracket away from the sealing box, providing an installation foundation for the positioning fixture. The positioning ring passes through the fixed bracket to the other side, allowing it to act as a positioning reference on the side where the sealing box is located. The outer contour of the positioning ring is offset outward by a predetermined dimension based on the outer contour of the charging socket, and this predetermined dimension is smaller than the gap between the opening of the sealing box and the perimeter of the charging socket, for example, 0.5mm. When the opening of the sealing box is nested on the positioning ring, the position of the sealing box relative to the charging socket is precisely defined by the positioning ring. At this time, the gap between the opening of the sealing box and the outer contour of the charging socket is the offset of the positioning ring, 0.5mm, which is less than the allowable deviation range of 1mm. This invention, by extracting feature points such as the installation point and outer arc of the charging socket, completes the positioning between the fixed bracket and the sealing box from different angles. The relative positional deviation between the fixed bracket and the sealing box is controlled within the allowable range, ensuring that the charging socket can smoothly pass through the opening of the sealing box for installation, avoiding vehicle rework due to positioning deviation, and achieving the technical effect of improving assembly accuracy and pass rate.

[0017] Advantages of additional aspects of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In addition, the dimensions or spacing between the components are exaggerated to show the position of each component, and the schematic diagrams are for illustrative purposes only.

[0019] Figure 1 These are the front and side views of the overall structure and its final usage effect in the embodiments of the present invention; Figure 2 These are three views of the fixed bracket in an embodiment of the present invention; Figure 3 These are the three views and isometric views of the sealing box in an embodiment of the present invention; Figure 4 This is a schematic diagram of the positioning fixture in an embodiment of the present invention; Figure 5 This is a schematic diagram illustrating the usage method of the positioning tooling in an embodiment of the present invention; Figure 6 As described in the embodiments of the present invention Figure 5 A magnified view of a portion of the image.

[0020] In the diagram: 1. Charging gun; 2. Charging socket; 3. Fixing bracket; 3-1. Fixing bolt; 4. Sealing box; 5. Base plate; 6. Positioning ring; 7. Positioning fixture; 8. Fixing pad; 9. Adhesive. Detailed Implementation To more clearly illustrate the technical solutions of the embodiments in this specification, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this specification. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the linguistic context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0021] Generally speaking, the terms "comprising" and "including" only indicate that the steps and elements are explicitly identified, and these steps and elements do not constitute an exclusive list. The method or apparatus may also include other steps or elements.

[0022] Example 1 like Figure 1 , Figure 2 , Figure 3 As shown, the charging structure and charging gun 1 are illustrated. During the assembly of the vehicle charging structure, the relative positional accuracy between the fixing bracket 3 and the sealing box 4 directly determines whether the charging socket 2 can be installed smoothly. As described in the background art, a sealing box 4 is added to the front of the charging socket 2 of the bus. The gap between the opening of the sealing box 4 and the perimeter of the charging socket 2 is only 1mm, and sealant needs to be filled into this gap later. If the relative positional deviation between the fixing bracket 3 and the sealing box 4 exceeds 1mm, the charging socket 2 cannot pass through the opening of the sealing box 4 to complete the installation, which will lead to vehicle rework.

[0023] Therefore, it is necessary to provide a positioning method that can precisely control the relative position of the fixed bracket 3 and the sealing box 4, such as... Figure 4 , Figure 5 , Figure 6 As shown, the fixture includes: a positioning fixture 7 comprising a base plate 5 and a positioning ring 6, the positioning ring 6 being disposed on one end face of the base plate 5; the base plate 5 being mounted on the side of the fixed bracket 3 away from the sealing box 4; the positioning ring 6 being passed through the fixed bracket 3 to the other side, wherein the outer contour of the positioning ring 6 is offset outward by a set dimension based on the outer contour of the charging socket 2, the set dimension being smaller than the gap between the opening of the sealing box 4 and the area around the charging socket 2; and the opening of the sealing box 4 being nested on the positioning ring 6.

[0024] The base plate 5 and the positioning ring 6 constitute the two core components of this positioning fixture 7. The positioning ring 6 is fixed to one end face of the base plate 5. The two can be connected by welding or by integral machining. In a specific embodiment, the base plate 5 and the positioning ring 6 are spot welded together after alignment at positioning points. The diameter of the weld points is 8mm to 10mm, and they are evenly distributed at least four locations to prevent deformation during use. Of course, the positioning fixture 7 can also be replaced by an integrally machined part, which offers higher precision.

[0025] The base plate 5 is fixed to the side of the fixed bracket 3 facing away from the sealing box 4, so that the positioning ring 6 can pass from one side of the fixed bracket 3 to the other side, thereby providing a reference for the positioning of the sealing box 4.

[0026] The mounting bracket 3 typically has a through hole for the charging socket 2 to pass through. The outer contour of the positioning ring 6 is designed to be smaller than the size of this through hole, so the positioning ring 6 can easily pass through the mounting bracket 3 to the side where the sealing box 4 is located. After the positioning ring 6 passes through the mounting bracket 3, its position represents the position of the charging socket 2 after installation.

[0027] The outer contour of the positioning ring 6 is obtained by offsetting it outward by a predetermined dimension based on the outer contour of the charging socket 2. This predetermined dimension is smaller than the gap between the opening of the sealing box 4 and the charging socket 2. In a specific embodiment, the outer contour line of the positioning ring 6 is offset outward by 0.5mm based on the outer contour line of the charging socket 2. Since the gap between the opening of the sealing box 4 and the area around the charging socket 2 is 1mm, and the offset of the positioning ring 6 is 0.5mm, the outer contour dimension of the positioning ring 6 is between the outer contour of the charging socket 2 and the inner contour of the opening of the sealing box 4.

[0028] After the positioning ring 6 passes through the fixing bracket 3 and reaches the side where the sealing box 4 is located, the opening of the sealing box 4 is fitted over the outside of the positioning ring 6. Since the outer contour of the positioning ring 6 is offset outward by a set size based on the outer contour of the charging socket 2, and this set size is smaller than the gap between the opening of the sealing box 4 and the charging socket 2, the position of the opening of the sealing box 4 relative to the charging socket 2 is determined when the opening of the sealing box 4 is nested on the positioning ring 6.

[0029] The base plate 5 is installed on the side of the fixed bracket 3 away from the sealing box 4, providing the installation foundation for the entire positioning fixture 7. The positioning ring 6 passes through the fixed bracket 3 to the other side, allowing it to perform a positioning function on the side where the sealing box 4 is located. The outer contour of the positioning ring 6 is offset outward by a set dimension based on the outer contour of the charging socket 2, ensuring that the outer contour of the positioning ring 6 accurately reflects the position of the charging socket 2 after installation. The opening of the sealing box 4 is nested on the positioning ring 6, precisely positioning the opening of the sealing box 4 relative to the charging socket 2. Through the cooperation of the above steps, the precise control of the relative position between the fixed bracket 3 and the sealing box 4 is achieved, with a positioning deviation of no more than 0.5mm, thus ensuring that the charging socket 2 can smoothly pass through the opening of the sealing box 4 for installation. In addition, the base plate 5 and the positioning ring 6 in this positioning method can be obtained by various methods such as laser cutting, wire cutting, or CNC machining centers, making the manufacturing process simple and cost-effective.

[0030] When installing the base plate 5 onto the fixed bracket 3, a quick and reliable installation method is required. The installation of the base plate 5 on the side of the fixed bracket 3 away from the sealing box 4 includes: the base plate 5 having fixing holes; the fixed bracket 3 having fixing bolts 3-1 on the side away from the sealing box 4; and the fixing holes of the base plate 5 being installed on the fixing bolts 3-1 of the fixed bracket 3.

[0031] In a specific embodiment, the diameter of the fixing holes on the base plate 5 is 0.2mm larger than the diameter of the fixing bolts 3-1 on the fixing bracket 3, and the relative positions of the fixing holes are the same as those of the fixing holes on the charging socket 2. By inserting the fixing holes of the base plate 5 into the fixing bolts 3-1 of the fixing bracket 3, the base plate 5 can be quickly installed and precisely positioned. The 0.2mm gap between the fixing holes and the fixing bolts 3-1 ensures both smooth installation and positioning accuracy. After installation, nuts can be used for temporary fixation to ensure that the base plate 5 fits snugly against the surface of the fixing bracket 3. This installation method is simple to operate, requires no additional positioning tools, and helps improve assembly efficiency.

[0032] After the sealing box 4 is nested on the positioning ring 6, the relative position of the sealing box 4 and the fixing bracket 3 must not move during the subsequent bonding and curing process. The sealing box 4 and the fixing bracket 3 are temporarily fixed by fixing pads 8, and the fixing pads 8 have double-sided adhesive on both sides.

[0033] In a specific embodiment, a double-sided adhesive fixing pad 8 is adhered to the inner surface of the fixing bracket 3. The thickness of the pad deviates from the designed gap by ±1mm. One side of the sealing box 4 is bonded and fixed to the fixing pad 8, thereby maintaining the relative position of the fixing bracket 3 and the sealing box 4 during the curing of the adhesive 9. The double-sided adhesive on both sides of the fixing pad 8 provides sufficient temporary fixing force, ensuring that the sealing box 4 will not shift during the application and curing of the adhesive, thus guaranteeing the stability of the positioning accuracy. After the adhesive 9 has fully cured, the fixing pad 8 can also be retained in the assembly as part of the permanent structure.

[0034] Adhesive 9 is applied between the fixed bracket 3 and the sealing box 4 to bond and fix the sealing box 4 and the fixed bracket 3 together.

[0035] In a specific embodiment, the tensile strength of the adhesive 9 is not less than 6 MPa, and the shear strength is not less than 4.5 MPa. After the sealing box 4 is precisely positioned by the positioning ring 6, the adhesive 9 is applied to the contact surface between the fixing bracket 3 and the sealing box 4. After the adhesive cures, a permanent fixed connection between the sealing box 4 and the fixing bracket 3 can be achieved. Compared with welding, the bonding method does not produce thermal deformation, which is beneficial to maintaining positioning accuracy; compared with riveting, it does not cause local damage to the components and has good sealing performance.

[0036] To improve the bonding strength and durability of adhesive 9, the bonding surfaces need to be properly pretreated before applying the adhesive. Before applying adhesive 9, an activator and primer are brushed between the fixing bracket 3 and the sealing box 4, and allowed to cool for a set time.

[0037] In a specific embodiment, after applying the activator and primer, the mixture is allowed to cool for 3 to 10 minutes. The activator removes contaminants from the bonding surface and activates its chemical properties, while the primer enhances the adhesion between the adhesive 9 and the substrate. The set cooling time allows the activator and primer to fully react and evaporate their solvents, thus creating an optimal surface condition for the application of the adhesive 9. After the above pretreatment, the bonding strength of the adhesive 9 is fully guaranteed.

[0038] Example 2 This embodiment provides a fixed bracket 3 and a sealing box 4 positioning fixture 7 for a vehicle charging structure, such as... Figure 4 As shown, it includes a base plate 5 and a positioning ring 6; the positioning ring 6 is disposed on one end face of the base plate 5; the base plate 5 has a fixing hole for passing through the fixing bolt 3-1 on the fixing bracket 3; the outer contour of the positioning ring 6 is offset outward by a set dimension based on the outer contour of the charging socket 2, the set dimension being smaller than the gap between the opening of the sealing box 4 and the area around the charging socket 2; the positioning ring 6 is used to nest and cooperate with the opening of the sealing box 4 after passing through the fixing bracket 3.

[0039] The fixing holes on the base plate 5 are used to mount the entire fixture onto the fixing bolts 3-1 of the fixed bracket 3, thus positioning the fixture relative to the fixed bracket 3. The positioning ring 6 is fixed to one end face of the base plate 5. When the base plate 5 is mounted on the side of the fixed bracket 3 away from the sealing box 4, the positioning ring 6 passes through the fixed bracket 3 to the other side. The outer contour of the positioning ring 6 is offset outward by a set dimension based on the outer contour of the charging socket 2. This set dimension is smaller than the gap between the opening of the sealing box 4 and the charging socket 2. Therefore, when the opening of the sealing box 4 is nested on the positioning ring 6, the position of the sealing box 4 relative to the charging socket 2 is precisely determined. In a specific embodiment, the outer contour line of the positioning ring 6 is offset outward by 0.5mm based on the outer contour line of the charging socket 2. This positioning fixture 7 has a simple structure. The base plate 5 and the positioning ring 6 can be obtained through various methods such as laser cutting, wire cutting, or CNC machining centers, resulting in low manufacturing costs and easily guaranteed precision.

[0040] The base plate 5 is provided with a first positioning point, and the positioning ring 6 is provided with a second positioning point, with the first positioning point and the second positioning point aligned.

[0041] In a specific embodiment, positioning points are provided on both sides of the base plate 5, corresponding to the positioning points on the positioning ring 6. By aligning the first and second positioning points, the relative positional accuracy between the base plate 5 and the positioning ring 6 can be ensured. In this specific embodiment, after the base plate 5 and the positioning ring 6 are aligned using the positioning points, the deviation does not exceed 0.2mm. This positioning method is simple and reliable, achieving high-precision assembly without the need for complex measuring equipment.

[0042] The base plate 5 and the positioning ring 6 are aligned through the first positioning point and the second positioning point, and then connected internally by spot welding.

[0043] In a specific embodiment, the diameter of the spot welds is 8mm to 10mm, and there are at least four evenly distributed spot welds. Spot welding is performed internally, and the welds do not affect the outer surface contour accuracy of the positioning fixture 7. The at least four evenly distributed welds ensure the connection strength between the base plate 5 and the positioning ring 6, preventing relative displacement or deformation due to stress during use. This connection method is simple, low-cost, and suitable for mass production.

[0044] The base plate 5 has a hollow structure in the middle.

[0045] In a specific embodiment, the base plate 5 features a hollow design in the middle, which reduces the overall weight of the tooling. This weight reduction makes it easier for the operator to handle and install the positioning tooling 7, improving assembly efficiency. Simultaneously, the hollow structure provides operating space for internal spot welding. The hollow design of the base plate 5 achieves both weight reduction and process convenience without compromising the positioning function.

[0046] Similar to the base plate 5, the positioning ring 6 also features a hollow design in the middle. This hollow structure reduces the overall weight of the fixture and provides operational space for internal spot welding. The hollow area of ​​the positioning ring 6 does not affect the positioning accuracy of its outer contour, as the positioning function is achieved solely by the outer contour of the positioning ring 6; the hollow middle portion does not participate in positioning.

[0047] In other embodiments, a different structural design can be used to position the fixing bracket 3 and the sealing box 4. A positioning fixture 7 for a vehicle charging structure, comprising a fixed bracket 3 and a sealing box 4, includes a base plate 5 and a positioning ring 6. The positioning ring 6 is disposed on one end face of the base plate 5. A fixing hole is provided on the base plate 5 for inserting a fixing bolt 3-1 from the fixed bracket 3. The outer contour of the positioning ring 6 is based on the outer contour of the charging socket 2, but it is not simply offset outward by a set dimension; instead, the positioning ring 6 is set to be conical. That is, in a cross-section parallel to the base plate 5, the outer contour shape of the positioning ring 6 is the same along the thickness direction, but the outer contour of the positioning ring 6 gradually decreases along the thickness direction from near the base plate 5 to far away from the base plate 5, and the overall shape of the positioning ring 6 is approximately a cone. In use, first install the fixing holes of the base plate 5 on the fixing bolts 3-1, but do not push it all the way in. Roughly align the opening of the sealing box 4 with the positioning ring 6. At this time, the gap between the opening of the sealing box 4 and the positioning ring 6 is relatively large. Gradually push the base plate 5 towards the fixing bracket 3. At this time, the gap between the opening of the sealing box 4 and the positioning ring 6 gradually decreases, and the sealing box 4 is gradually aligned until the sealing box 4 and the positioning ring 6 are in direct contact. Then, it is glued and fixed. This structure and positioning method greatly improves the positioning accuracy.

[0048] The difference in this structure lies in the design of the positioning ring 6, which is tapered. Specifically, the outer contour of the positioning ring 6 gradually decreases from the end closest to the base plate 5 to the end furthest from it, resembling a cone. This design provides a unique positioning method: In use, the fixing hole of the base plate 5 is first fitted onto the fixing bolt 3-1, but not pushed all the way in. At this point, there is a large gap between the positioning ring 6 and the opening of the sealing box 4, allowing the sealing box 4 to easily fit onto the positioning ring 6. Then, the base plate 5 is gradually pushed towards the fixing bracket 3, and the tapered outer contour of the positioning ring 6 gradually contacts the inner wall of the opening of the sealing box 4, guiding the sealing box 4 to automatically align. When the base plate 5 is pushed to its final position, the opening of the sealing box 4 fits tightly against the positioning ring 6, and the position of the sealing box 4 is precisely positioned. This dynamic positioning guidance method reduces operational difficulty and improves positioning accuracy and ease of operation.

[0049] While the specific embodiments of the present invention have been described above, they are not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A method for positioning a fixed bracket and a sealed box in a vehicle charging structure, characterized in that, include: The positioning fixture includes a base plate and a positioning ring, wherein the positioning ring is disposed on one end face of the base plate; The base plate is installed on the side of the fixed bracket away from the sealed box; The positioning ring is passed through the fixed bracket to the other side, wherein the outer contour of the positioning ring is offset outward by a set dimension based on the outer contour of the charging socket, and the set dimension is smaller than the gap between the opening of the sealing box and the area around the charging socket. The opening of the sealing box is nested on the positioning ring.

2. The method for positioning the fixed bracket and sealing box of the vehicle charging structure as described in claim 1, characterized in that, The base plate is installed on the side of the fixed bracket away from the sealing box, including: the base plate has a fixing hole, the fixed bracket has a fixing bolt on the side away from the sealing box, and the fixing hole of the base plate is installed on the fixing bolt of the fixed bracket.

3. The method for positioning the fixed bracket and sealing box of the vehicle charging structure as described in claim 1, characterized in that, The sealing box and the fixing bracket are temporarily fixed by fixing pads, and the fixing pads have double-sided adhesive on both sides.

4. The method for positioning the fixed bracket and sealing box of the vehicle charging structure as described in claim 1, characterized in that, Adhesive is applied between the fixed bracket and the sealing box to bond and fix the sealing box and the fixed bracket.

5. The fixing bracket and sealing box positioning method for the vehicle charging structure as described in claim 4, characterized in that, Before applying the adhesive, apply an activator and primer between the fixing bracket and the sealing box, and allow it to cool for a set time.

6. A fixing bracket and sealing box positioning fixture for a vehicle charging structure, characterized in that, Including the base plate and positioning ring; The positioning ring is disposed on one end face of the base plate; The base plate is provided with fixing holes for inserting fixing bolts from the fixing bracket. The outer contour of the positioning ring is offset outward by a set dimension based on the outer contour of the charging socket. The set dimension is smaller than the gap between the opening of the sealing box and the area around the charging socket. The positioning ring is used to pass through the fixed bracket and nest with the opening of the sealing box.

7. The fixed bracket and sealing box positioning fixture for the vehicle charging structure as described in claim 6, characterized in that, The base plate is provided with a first positioning point, and the positioning ring is provided with a second positioning point, with the first positioning point and the second positioning point aligned.

8. The fixed bracket and sealing box positioning fixture for the vehicle charging structure as described in claim 7, characterized in that, The base plate and the positioning ring are aligned through the first positioning point and the second positioning point, and then connected internally by spot welding.

9. The fixed bracket and sealing box positioning fixture for the vehicle charging structure as described in claim 6, characterized in that, The base plate has a hollow structure in the middle.

10. The fixing bracket and sealing box positioning fixture for the vehicle charging structure as described in claim 6, characterized in that, The positioning ring has a hollow structure in the middle.

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