Vehicle grounding device and grounding method

Abstract

The invention relates to the technical field of automobile electrical safety devices, and particularly discloses a vehicle grounding device and a grounding method.The vehicle comprises a vehicle frame, a plurality of installation groove holes are formed in the vehicle frame, the vehicle grounding device comprises a grounding piece, and the grounding piece comprises a grounding body and a first protruding part; the first protruding part is arranged on the outer circumferential face of the grounding body in a protruding mode in the circumferential direction, the two ends of the grounding body in the length direction of the grounding body are a first free end and a second free end respectively, the first protruding part is located between the first free end and the second free end, and the outer diameter of the first protruding part is larger than the inner diameter of the installation groove hole. The first protruding part is in interference fit with the mounting groove hole, and the grounding piece is made of a conductive material. By means of the arrangement, reliable grounding connection can be achieved through interference fit between the first protruding part and the installation groove hole in the automobile frame, paint on the surface of the automobile frame does not need to be broken, and the grounding effect of distributed grounding of the automobile frame is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile electrical safety devices, and in particular to a vehicle grounding device and a grounding method. Background Art

[0002] The intelligent networking of automobiles is developing very rapidly, and the number of electrical functions is gradually increasing. In order to ensure the reliable functions of automotive electrical equipment, electrical components need to be reliably grounded through grounding terminals. There are two main grounding methods for existing commercial vehicle chassis electrical components: one is centralized grounding through structures such as the engine flywheel housing and the battery negative terminal, and the other is distributed grounding near the frame. Compared with centralized grounding, distributed grounding has the characteristics of less wires and is conducive to the layout of wiring harnesses.

[0003] Existing distributed grounding methods usually use a toothed structure (such as a toothed washer, etc.) to break the paint on the surface of the frame to achieve grounding. However, the paint thickness on the surface of the frame is not uniform, and the reliability of the contact between the grounding terminal and the frame cannot be guaranteed. At the same time, the paint on the surface of the frame is prone to oxidation and rust after being broken, which affects the grounding effect to a certain extent. Summary of the invention

[0004] The object of the present invention is to provide a vehicle grounding device and a grounding method, which can effectively improve the grounding effect of the distributed grounding of the automobile frame.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] In one aspect, the present invention provides a vehicle grounding device, wherein the vehicle comprises a frame, wherein the frame is provided with a plurality of mounting slots, and the vehicle grounding device comprises:

[0007] A grounding piece, the grounding piece includes a grounding body and a first protrusion, the first protrusion is protruded on the outer circumferential surface of the grounding body along the circumferential direction, the two ends of the grounding body along its own length direction are respectively a first free end and a second free end, the first protrusion is located between the first free end and the second free end, the outer diameter of the first protrusion is larger than the inner diameter of the mounting slot, and the first protrusion is interference fit with the mounting slot, and the grounding piece is made of conductive material.

[0008] As a preferred technical solution of the above-mentioned vehicle grounding device, the outer peripheral surface of the first protrusion is provided with a straight knurling, and the straight knurling is interference fit with the hole wall of the installation slot hole.

[0009] As a preferred technical solution of the above-mentioned vehicle grounding device, the vehicle grounding device further includes an anti-paint blind plug, and the anti-paint blind plug is detachably installed on the inner surface of the installation slot.

[0010] As a preferred technical solution of the above-mentioned vehicle grounding device, the grounding member also includes a second protrusion, which is protruded on the outer circumferential surface of the grounding body along the circumferential direction, and the second protrusion is axially fitted with the end surface of the frame, and the first protrusion is located between the second free end and the second protrusion.

[0011] As a preferred technical solution of the above-mentioned vehicle grounding device, the first protrusion is axially connected to the second protrusion, and the first protrusion and the second protrusion are integrally formed.

[0012] As a preferred technical solution of the above-mentioned vehicle grounding device, the vehicle grounding device also includes a first fixing member, which is connected to the grounding body and located between the second free end and the first protrusion, and the first fixing member abuts against the end surface of the frame.

[0013] As a preferred technical solution of the above-mentioned vehicle grounding device, the vehicle grounding device further includes a grounding terminal, the grounding terminal is used for grounding, and the grounding terminal is sleeved on the grounding body.

[0014] As a preferred technical solution of the above-mentioned vehicle grounding device, the vehicle grounding device further includes a second fixing member, the second fixing member is connected to the grounding body, and the grounding terminal abuts between the second fixing member and the second protrusion.

[0015] As a preferred technical solution of the above-mentioned vehicle grounding device, the first fixing member and the second fixing member are both flange nuts.

[0016] On the other hand, the present invention further provides a grounding method, including the vehicle grounding device in any of the above solutions, the grounding method comprising:

[0017] S100: before electrophoresis of the frame, installing a paint-proof blind plug at the mounting slot hole, and removing the paint-proof blind plug after electrophoresis;

[0018] S200: fixing the grounding body to the frame using a first fixing member, and interferingly fitting the spur knurling of the first protruding portion with the mounting slot hole;

[0019] S300: Using a second fixing member to crimp the ground terminal onto the end surface of the second protruding portion.

[0020] The beneficial effects of the present invention are:

[0021] The present invention provides a vehicle grounding device and a grounding method, wherein the vehicle includes a frame, a plurality of mounting slots are provided on the frame, the vehicle grounding device includes a grounding member, the grounding member includes a grounding body and a first protrusion, the first protrusion is protruded on the outer peripheral surface of the grounding body along the circumferential direction, the two ends of the grounding body along its own length direction are respectively a first free end and a second free end, the first protrusion is located between the first free end and the second free end, the outer diameter of the first protrusion is larger than the inner diameter of the mounting slot, and the first protrusion is interference fit with the mounting slot, and the grounding member is made of conductive material. In this way, through the interference fit between the first protrusion and the mounting slot on the frame, a reliable grounding connection can be achieved, and the paint on the surface of the frame does not need to be removed, which effectively improves the grounding effect of the distributed grounding of the automobile frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 An exploded view of the vehicle grounding device provided by the present invention;

[0023] Figure 2 A schematic diagram of the structure of a vehicle grounding device provided by the present invention;

[0024] Figure 3 A schematic diagram of the structure of the paint-proof blind plug and the frame provided by the present invention;

[0025] Figure 4 Schematic diagram of the assembly of the vehicle grounding device provided by the present invention Figure 1 ;

[0026] Figure 5 Schematic diagram of the assembly of the vehicle grounding device provided by the present invention Figure 2 ;

[0027] Figure 6 Schematic diagram of the assembly of the vehicle grounding device provided by the present invention Figure 3 ;

[0028] Figure 7 Schematic diagram of the assembly of the vehicle grounding device provided by the present invention Figure 4 ;

[0029] Figure 8 Schematic diagram of the assembly of the vehicle grounding device provided by the present invention Figure 5 ;

[0030] Fig. 9 Schematic diagram of the assembly of the vehicle grounding device provided by the present invention Figure 6 .

[0031] in:

[0032] 1. Frame; 2. Mounting slot; 3. Grounding body;

[0033] 4. a first raised portion; 41. straight tooth knurling;

[0034] 5. Anti-paint blind plugging; 6. Second protrusion; 7. First fixing piece; 8. Grounding terminal; 9. Second fixing piece. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0037] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0040] like Figures 1 to 9As shown, this embodiment provides a vehicle grounding device, wherein the vehicle includes a frame 1, a plurality of mounting slots 2 are provided on the frame 1, the vehicle grounding device includes a grounding member, the grounding member includes a grounding body 3 and a first protrusion 4, the first protrusion 4 is protruded on the outer circumferential surface of the grounding body 3 along the circumferential direction, the two ends of the grounding body 3 along its own length direction are respectively a first free end and a second free end, the first protrusion 4 is located between the first free end and the second free end, the outer diameter of the first protrusion 4 is larger than the inner diameter of the mounting slot 2, and the first protrusion 4 is interference fit with the mounting slot 2, and the grounding member is made of conductive material. In this way, through the interference fit between the first protrusion 4 and the mounting slot 2 on the frame 1, a reliable grounding connection can be achieved, and there is no need to break the paint on the surface of the frame 1, which effectively improves the grounding effect of the distributed grounding of the automobile frame 1.

[0041] Optionally, in order to further improve the connection reliability between the first protrusion 4 and the frame 1 , a spur knurl 41 is provided on the outer peripheral surface of the first protrusion 4 , and the spur knurl 41 is interference fit with the hole wall of the mounting slot 2 .

[0042] Optionally, the vehicle grounding device further includes an anti-paint blind plug 5, which is detachably mounted on the inner surface of the mounting slot 2. With this arrangement, the anti-paint blind plug 5 can be mounted on the mounting slot 2 before electrophoresis of the vehicle frame 1, and the anti-paint blind plug 5 can be removed after electrophoresis to ensure that the inner surface of the mounting slot 2 is free of paint, thereby ensuring the grounding effect.

[0043] Optionally, a second protrusion 6 is convexly provided on the outer circumferential surface of the grounding member, the second protrusion 6 is convexly provided on the outer circumferential surface of the grounding body 3 along the circumferential direction, and the second protrusion 6 is axially fitted with the end surface of the outer side of the frame 1, the first protrusion 4 is located between the second free end and the second protrusion 6, the first protrusion 4 is axially connected to the second protrusion 6, and the first protrusion 4 and the second protrusion 6 are integrally formed.

[0044] Optionally, the vehicle grounding device further comprises a first fixing member 7 , which is connected to the grounding body 3 and is located between the second free end and the first protrusion 4 , and the first fixing member 7 abuts against the inner end surface of the frame 1 .

[0045] Optionally, the vehicle grounding device further comprises a grounding terminal 8, which is used for grounding and is sleeved on the grounding body 3. It should be noted that the number of grounding terminals 8 can be multiple, and considering the grounding effect, the number of grounding terminals 8 does not exceed three.

[0046] Optionally, the vehicle grounding device further includes a second fixing member 9 , the second fixing member 9 is connected to the grounding body 3 , and the grounding terminal 8 is abutted between the second fixing member 9 and the second protrusion 6 .

[0047] Specifically, the first fixing member 7 and the second fixing member 9 are both flange nuts.

[0048] It should be noted that the grounding piece is made by cold heading or turning, and the grounding piece, the first fixing piece 7 and the second fixing piece 9 are subjected to the same surface treatment process to prevent the grounding effect from being affected by electrochemical corrosion.

[0049] This embodiment further provides a grounding method, including the vehicle grounding device in the above solution, and the grounding method includes:

[0050] S100: Before electrophoresis of the vehicle frame 1, an anti-paint blind plug 5 is installed at the mounting slot hole 2, and after electrophoresis, the anti-paint blind plug 5 is removed;

[0051] S200: The grounding body 3 is fixed to the frame 1 by using the first fixing member 7, and the straight tooth knurling 41 of the first protrusion 4 is interference-fitted with the mounting slot 2;

[0052] S300 : Using the second fixing member 9 to crimp the ground terminal 8 onto the end surface of the second protruding portion 6 .

[0053] Specifically, after the second free end of the grounding member is passed through the mounting slot 2 of the frame 1, the first fixing member 7 is used to fix the grounding body 3 on the inner side of the frame 1, and the first fixing member 7 is tightened according to the specified torque. During the tightening process of the first fixing member 7, the straight tooth knurling 41 of the first protrusion 4 enters along the axial direction of the mounting slot 2 and achieves an interference fit with the mounting slot 2. After the first fixing member 7 is tightened according to the specified torque, the second protrusion 6 needs to have good contact with the end face on the outer side of the frame 1. Then, the grounding terminal 8 is passed through the first free end and sleeved on the grounding body 3, and axially abuts against the end face of the second protrusion 6. The second fixing member 9 is used to fix the grounding terminal 8 to complete the grounding. It should be noted that the grounding terminal 8 of this embodiment is installed on the outer side of the frame 1, and the installation direction can also be adjusted to install the grounding terminal 8 on the inner side of the frame 1.

[0054] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A vehicle grounding device, the vehicle comprising a frame (1), the frame (1) being provided with a plurality of mounting slots (2), characterized in that: The vehicle grounding device comprises: A grounding member, the grounding member comprises a grounding body (3) and a first protrusion (4), the first protrusion (4) is protrudingly arranged on the outer peripheral surface of the grounding body (3) along the circumferential direction, the two ends of the grounding body (3) along its own length direction are respectively a first free end and a second free end, the first protrusion (4) is located between the first free end and the second free end, the outer diameter of the first protrusion (4) is larger than the inner diameter of the mounting slot hole (2), and the first protrusion (4) and the mounting slot hole (2) are interference fit, and the grounding member is made of conductive material.

2. The vehicle grounding device according to claim 1, characterized in that: The outer peripheral surface of the first protruding portion (4) is provided with a straight-tooth knurling (41), and the straight-tooth knurling (41) is interference-fitted with the hole wall of the mounting slot hole (2).

3. The vehicle grounding device according to claim 1, characterized in that: The vehicle grounding device further comprises an anti-paint blind plug (5), and the anti-paint blind plug (5) is detachably mounted on the inner surface of the mounting slot hole (2).

4. The vehicle grounding device according to claim 1, characterized in that: The grounding member further comprises a second protrusion (6), the second protrusion (6) being protrudingly arranged on the outer peripheral surface of the grounding body (3) along the circumferential direction, and the second protrusion (6) being axially fitted with the end surface of the frame (1), and the first protrusion (4) being located between the second free end and the second protrusion (6).

5. The vehicle grounding device according to claim 4, characterized in that: The first protruding portion (4) is axially connected to the second protruding portion (6), and the first protruding portion (4) and the second protruding portion (6) are integrally formed.

6. The vehicle grounding device according to claim 4, characterized in that: The vehicle grounding device further comprises a first fixing member (7), the first fixing member (7) being connected to the grounding body (3) and being located between the second free end and the first protruding portion (4), and the first fixing member (7) being in contact with the end surface of the vehicle frame (1).

7. The vehicle grounding device according to claim 6, characterized in that: The vehicle grounding device also includes a grounding terminal (8), the grounding terminal (8) is used for grounding, and the grounding terminal (8) is sleeved on the grounding body (3).

8. The vehicle grounding device according to claim 7, characterized in that: The vehicle grounding device further comprises a second fixing member (9), the second fixing member (9) being connected to the grounding body (3), and the grounding terminal (8) being abutted between the second fixing member (9) and the second protruding portion (6).

9. The vehicle grounding device according to claim 8, characterized in that: The first fixing member (7) and the second fixing member (9) are both flange nuts.

10. A grounding method, characterized in that: The vehicle grounding device according to any one of claims 1 to 9, wherein the grounding method comprises: S100: before electrophoresis of the vehicle frame (1), an anti-paint blind plug (5) is installed at the mounting slot hole (2), and after electrophoresis, the anti-paint blind plug (5) is removed; S200: Using a first fixing member (7) to fix the grounding body (3) to the vehicle frame (1), and making the straight tooth knurling (41) of the first protruding portion (4) and the mounting slot hole (2) interference fit; S300: Using a second fixing member (9) to crimp the ground terminal (8) onto the end surface of the second raised portion (6).

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