Integrated bonding device for vehicle

Abstract

The utility model relates to an integrated bonding device for a vehicle, which comprises a bonding block, a through hole type threaded hole perpendicular to the upper bottom surface and the lower bottom surface is arranged between the upper bottom surface and the lower bottom surface of the bonding block, and an embedded threaded hole perpendicular to the side surface is arranged on the single side surface of the bonding block. Finally, the through hole type threaded holes and the embedded type threaded holes are distributed in the bonding block in a staggered mode; through the above layout, the bonding block can integrate a plurality of bonding interfaces, separate bonding is carried out according to different bonding functions, bonding resistance can be reduced, electromagnetic interference is reduced, stability and reliability of bonding are improved, and meanwhile it is guaranteed that the bonding block is compact in structure. Meanwhile, the bonding block is fixed to any position of the frame in a welding mode, the frame is protected through a 3M plastic linear adhesive tape before electrophoresis is conducted on the frame, and the influence of electrophoresis on bonding can be avoided by deleting the adhesive tape after electrophoresis.

Description

Technical Field

[0001] The utility model relates to the field of automobile structures, and particularly relates to an integrated grounding device for vehicles. Background Art

[0002] The statements herein only provide background art related to the utility model, and do not necessarily constitute prior art.

[0003] In the low-voltage power supply system of an automobile circuit, a DC circuit is used. All circuits of electrical equipment have a positive pole and a negative pole, and the loop drawn from the load has to be directly connected to the negative terminal of the storage battery through a wire. In order to save wire materials and facilitate installation, a single-wire system is generally adopted in automobile circuits, that is, the positive wire of the storage battery is directly connected to each electrical equipment, the negative wire of the storage battery is directly and proximally connected to the metal parts of the vehicle frame, and the negative wire of the electrical equipment is also proximally connected to the metal parts of the vehicle frame, using the metal bodies of the engine and the automobile chassis (beam frame) as a common channel.

[0004] The grounding wire is not only a part of the automobile circuit loop, but also plays an important role in reducing resistance, preventing static electricity and reducing electromagnetic interference. With the development of automobile technology, there are more and more electrical facilities in vehicles, resulting in an increase in grounding points accordingly; at the same time, more precise vehicle electronic control systems have higher and higher requirements for grounding performance. It can be said that the quality of the grounding condition is the key to the normal operation of the automobile electronic control system and automobile electrical devices.

[0005] The existing problems are as follows: First, the grounding wire uses a circular terminal to be pre-welded to the bolt of the vehicle frame or connected to the reserved threaded hole of the vehicle frame; however, after the vehicle frame undergoes the electrophoresis process, there is inevitably electrophoresis paint on the bolt or threaded hole. When the wire harness is grounded, the electrophoresis paint must be removed first. In actual operation, it is impossible to ensure that the electrophoresis paint is completely removed, resulting in poor grounding effect, and removing the electrophoresis paint wastes time and affects production efficiency; this solution has fewer grounding points and does not meet the increasing requirements for grounding. Second, after the vehicle frame is welded with a fixed bracket, a grounding device is separately matched and installed, and the grounding performance is improved by upgrading and transforming the structure of the grounding terminal. However, most of the grounding devices in this solution are special-shaped structures, with high production costs, complex processing, poor practicability, and increased work intensity for construction workers. Summary of the Utility Model

[0006] The technical problem to be solved by the utility model is to provide an integrated grounding device for vehicles, so as to integrate multiple grounding interfaces on the grounding block and improve the stability and reliability of the grounding block by using the method of distributing different threaded hole clearances; at the same time, the grounding block can avoid affecting the stability of the overall structure of the vehicle frame and the influence of electrophoresis paint on grounding.

[0007] The purpose of the present utility model is to provide a vehicle integrated grounding device, including a grounding block. A through-hole threaded hole perpendicular to the upper and lower bottom surfaces is provided between the upper and lower bottom surfaces of the grounding block. An embedded threaded hole perpendicular to the side surface is provided on a single side surface of the grounding block. The through-hole threaded hole and the embedded threaded hole are staggered on the grounding block.

[0008] As a further technical solution, the corners of the grounding block are provided with rounded corner structures.

[0009] As a further technical solution, the material of the grounding block is No. 10 steel.

[0010] As a further technical solution, the grounding block is fixed to the vehicle frame by welding.

[0011] As a further technical solution, the surface of the grounding block is electroplated with colored zinc.

[0012] As a further technical solution, the center points of the through-holes on the upper and lower bottom surfaces of the through-hole threaded hole are located on the center lines of the upper and lower bottom surfaces respectively.

[0013] As a further technical solution, the center point of the through-hole on the side surface of the embedded threaded hole is located on the center line of the side surface.

[0014] As a further technical solution, the grounding block is of a square block structure.

[0015] As a further technical solution, the through-hole threaded holes are M8 threaded holes and M10 threaded holes.

[0016] As a further technical solution, the embedded threaded hole is an M6 threaded hole.

[0017] The beneficial effects of the above one or more technical solutions:

[0018] (1) In this embodiment, by providing through-hole threaded holes on the upper and lower bottom surfaces of the grounding block and an embedded threaded hole on a single side surface of the grounding block, and the through-hole threaded hole and the embedded threaded hole are staggered on the grounding block, so as to realize that the grounding block can integrate multiple grounding interfaces, and at the same time ensure the compact structure of the grounding block. And separate grounding according to different functions of grounding can reduce the grounding resistance and reduce electromagnetic interference, thereby improving the stability and reliability of grounding.

[0019] (2) The grounding block provided in this embodiment is fixed to any position on the vehicle frame by welding the side surface without the threaded hole, which improves the contact area and application range between the grounding block and the vehicle frame, and avoids the influence on the overall structural stability of the vehicle frame by means of opening holes or welding bolts on the vehicle structure, and has little electrochemical corrosion on the vehicle frame and the body.

[0020] (3) Before the iron block for grounding provided in this embodiment is welded to the vehicle frame and before electrophoresis, it can be protected by using 3M plastic straight tape, so as to tightly protect the threaded hole and the metal surface where it is located. At the same time, when the tape is bonded, a closed-loop protection is adopted. After electrophoresis, the tape can be directly torn off to carry out the subsequent grounding construction, which can effectively avoid the influence of electrophoretic paint on grounding.

[0021] (4) The iron block for grounding provided in this embodiment realizes centralized grounding on the vehicle, which is beneficial to improving the construction efficiency. At the same time, it is convenient to handle and repair the grounding problems subsequently. Moreover, the overall structure of the iron block for grounding is simple and reliable, the raw materials are common, and it is easy to produce and manufacture with low cost, having good economic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specification drawings forming a part of this application are used to provide a further understanding of this application. For the convenience of understanding, the proportions between various parts of the structure are adjusted. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation to this application.

[0023] Figure 1 It is the front view of the structure of the iron block for grounding in an integrated grounding device for vehicles of the present utility model.

[0024] Figure 2 It is the top view of the structure of the iron block for grounding in an integrated grounding device for vehicles of the present utility model.

[0025] Among them, 1. Iron block for grounding, 2. Through-hole threaded hole, 3. Embedded threaded hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the Figure 1-2 accompanying drawings.

[0027] Embodiment 1

[0028] Referring to Figure 1-2 , an integrated grounding device for vehicles includes an iron block for grounding 1. A through-hole threaded hole 2 perpendicular to the upper and lower bottom surfaces is provided between the upper and lower bottom surfaces of the iron block for grounding 1. An embedded threaded hole 3 perpendicular to the side surface is provided on a single side surface of the iron block for grounding, and the through-hole threaded hole 2 and the embedded threaded hole 3 are staggered on the iron block for grounding 1. In this embodiment, the iron block for grounding 1 is a square block structure, specifically a cuboid structure, and the corners of the cuboid-structured iron block for grounding 1 are provided with rounded corners, and the material is selected as No. 10 steel.

[0029] Among them, the cuboid structure is adopted to ensure the regular structure of the iron bridging block 1, and an effective protection can be carried out on the iron bridging block 1 in a simple way before electrophoresis; and the edges and corners of the iron bridging block 1 are set as rounded corner structures to facilitate the installation of the iron bridging block 1 at different positions and avoid collisions between the sharp corners on the iron bridging block 1 and the vehicle body structure, thereby damaging the overall stability of the vehicle body and the iron bridging block 1.

[0030] The material of No. 10 steel is simple and reliable. It can not only meet the condition requirements of the iron bridging block 1 itself, but also has excellent plasticity and toughness, and does not affect its own performance after welding; at the same time, after the iron bridging block 1 is machined by cutting, it is electroplated with colored zinc, which can effectively prevent corrosion and oxidation. Finally, the overall structure of the iron bridging block 1 is simple and reliable, the raw materials are ordinary, and the production and manufacturing are easy and the cost is low, with good economic value.

[0031] According to Figure 1-2 , the length of the through-hole threaded hole 2 is the same as the height of the cuboid iron bridging block 1, which is equivalent to cutting a threaded hole with a hollow middle between the upper and lower bottom surfaces of the iron bridging block 1; while the length of the embedded threaded hole 3 is shorter than the width of the cuboid iron bridging block 1; and the lengths of the through-hole threaded hole 2 and the embedded threaded hole 3 are not the same either.

[0032] The above settings are considered that when different devices on the vehicle are grounded, the functions achieved by grounding are different, which leads to the selection of different threaded holes; for example, the battery is grounded with an M10 threaded hole, and the sensor is grounded with an M6 threaded hole; and the lengths of different types of threaded holes are also different.

[0033] Therefore, in this embodiment, the through-hole threaded hole 2 selects threaded holes of M8 and M10 models. Through the through-hole structure, the corresponding thread can fix the grounding wire on the iron bridging block 1; while the embedded threaded hole 3 selects an M6 model threaded hole, which also ensures that the grounding wire can be fixed on the iron bridging block 1 through the thread; through the above settings, an iron bridging block 1 can ground the grounding wires corresponding to different functional devices on the vehicle. Specifically, the threaded holes on the iron bridging block 1 can be changed accordingly according to the grounding requirements of the vehicle.

[0034] The size of the iron bridging block 1 can be adjusted and set adaptively according to the length of the threaded hole required for grounding, which will not be elaborated here. At the same time, the above settings realize the centralized grounding of the iron bridging block 1, which is beneficial to improving the construction efficiency and facilitating the subsequent handling and maintenance of grounding problems.

[0035] In this embodiment, the through-hole threaded holes 2 and the embedded threaded holes 3 are both arranged on the corresponding planes and along the center lines in the length direction; specifically, the center points of the through-holes on the upper and lower bottom surfaces of the iron block 1 where the through-hole threaded holes 2 are located are respectively located on the center lines of the upper and lower bottom surfaces, while the center points of the through-holes on the side surface of the iron block 1 where the embedded threaded holes 3 are located are located on the center line of the side surface; that is, the through-hole threaded holes 2 and the embedded threaded holes 3 are respectively arranged at the central positions of the corresponding planes. At the same time, there is a certain distance between adjacent through-hole threaded holes 2 and between embedded threaded holes 3; and from the overall structure of the iron block 1 and along the center line in the length direction, the through-hole threaded holes 2 and the embedded threaded holes 3 are staggered on the iron block 1.

[0036] Through the above-set interval and staggered distribution layout method, the grounding resistance can be effectively reduced, electromagnetic interference can be reduced, the stability and reliability of grounding can be effectively improved, and it is beneficial to the construction in the narrow space of the vehicle. Specifically, the length, width or height of the iron block 1 can be adaptively extended so that the through-hole threaded holes 2 and the embedded threaded holes 3 are arranged in an array on the corresponding bottom surface or side surface.

[0037] At the same time, one side surface of the iron block 1 without threaded holes is fixed at any position on the vehicle frame by welding, such as the front inspection opening of the vehicle frame, the battery compartment, the equipment compartment, etc. And through the above connection and fixing method, on the one hand, the contact area between the iron block 1 and the vehicle frame is increased, realizing excellent contact with the whole vehicle frame; on the other hand, the influence on the overall structural stability of the vehicle frame caused by opening holes or welding bolts on the vehicle structure is avoided, and the electrochemical corrosion of the vehicle frame and the body is small.

[0038] After using the above iron block 1 and welding it to the vehicle frame, before electrophoresis of the vehicle frame, 3M plastic straight tape can be used for protection to wrap the iron block 1, so as to tightly protect the threaded holes and the metal surface where they are located; at the same time, when the tape is bonded, closed-loop protection is adopted, and the tape can be directly torn off after electrophoresis to carry out subsequent grounding construction, which can effectively avoid the influence of electrophoretic paint on grounding.

[0039] At the same time, the standard bolt hole grounding is configured with corresponding spring washers, flat washers, serrated washers and bolts, avoiding the use of self-locking or self-tapping screws, and using electric or pneumatic tools to tighten, so that the grounding is more firm and reliable.

[0040] Although the specific implementation manners of the present invention are described above in conjunction with the drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that based on the technical solutions of the present invention, various modifications or deformations that can be made by those skilled in the art without creative labor are still within the protection scope of the present invention.

Claims

1. An integrated vehicle grounding device includes a grounding block. A through-hole threaded hole perpendicular to the upper and lower bottom surfaces is provided between the upper and lower bottom surfaces of the grounding block. An embedded threaded hole perpendicular to the side surface is provided on a single side surface of the grounding block. The through-hole threaded hole and the embedded threaded hole are staggeredly distributed on the grounding block.

2. The integrated grounding device for vehicle according to claim 1, characterized in that, The corners of the grounding block are provided with rounded corner structures.

3. The vehicle integrated grounding device according to claim 1, wherein The material of the grounding block is No. 10 steel.

4. The integrated grounding device for a vehicle according to claim 1, characterized in that, The grounding block is fixed to the vehicle frame by welding.

5. The integrated grounding device for a vehicle according to claim 1, wherein, The surface of the grounding block is electroplated with colored zinc.

6. The integrated grounding device for a vehicle according to claim 1, characterized in that, The center points of the through-holes on the upper and lower bottom surfaces of the through-hole threaded hole are located on the center lines of the upper and lower bottom surfaces respectively.

7. The integrated grounding device for vehicle according to claim 1, characterized in that, The center point of the through-hole on the side surface of the embedded threaded hole is located on the center line of the side surface.

8. The integrated grounding device for vehicle according to claim 1, characterized in that The grounding block is of a square block structure.

9. The integrated grounding device for a vehicle according to claim 1, wherein, The through-hole threaded holes are M8 threaded holes and M10 threaded holes.

10. The integrated grounding device for vehicle according to claim 1, wherein, The embedded threaded hole is an M6 threaded hole.

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