Grounding device and vehicle

Abstract

The utility model discloses a grounding device and a vehicle, the grounding device comprises a first connecting piece and a second connecting piece, a limiting surface for limiting circumferential rotation of a grounding terminal is located on the outer circumferential wall of the first connecting piece, so that when the grounding terminal is assembled, it is only needed to consider the matching relation with the first connecting piece, the grounding terminal is not related to a third part, and the assembling efficiency is improved. Installation is simple, the installation efficiency can be improved, limiting holes do not need to be formed in a vehicle body, and the vehicle body structure can be optimized.

Description

Technical Field

[0001] The present application relates to the technical field of grounding installation of electrical components, and particularly to a grounding device and a vehicle. Background Art

[0002] Currently, according to the different materials of vehicle body panels, there are mainly two types of grounding structures for vehicles: The first method is applicable to the grounding of steel body panels. The grounding structure includes a carbon steel nut, a bolt, and a grounding terminal. Among them, the nut is welded to the body panel, the grounding terminal is placed on the body panel, and the bolt passes through the grounding terminal and is screwed into the welded nut to achieve the grounding effect. The second method is applicable to the grounding of aluminum body panels. The grounding structure includes an aluminum part nut, which is welded to the aluminum body panel and then connected to the grounding terminal to achieve the grounding purpose.

[0003] As can be seen from the above description, both of the above two methods use welding to fix the nut to the body panel and use a bolt to press the grounding terminal against the body panel. To prevent the circumferential rotation of the grounding terminal, a limiting structure for restricting the rotation of the grounding terminal is usually provided on the body panel. For example, through holes or protrusions are provided on the body panel, and structures that are snap-fitted with the through holes and protrusions are provided on the grounding terminal.

[0004] Processing the limiting structure on the body panel, on the one hand, damages the structure of the body panel and has a certain impact on the overall vehicle performance. On the other hand, the limiting cooperation between the limiting structure on the body panel and the grounding terminal is also restricted by the nut. When the processing errors or assembly errors of the body panel, grounding terminal, and nut are relatively large, it is difficult to install the grounding terminal with the limiting structure on the body panel, and even the connection may be impossible.

[0005] Therefore, how to provide a grounding device with fast installation is a technical problem that needs to be urgently solved by those skilled in the art. Summary of the Utility Model

[0006] The purpose of the present application is to provide a grounding device that is easy to install. Another purpose of the present application is to provide a vehicle including the above grounding device.

[0007] The present application provides a grounding device, including:

[0008] A first connecting member, including a first through hole, the first through hole having an internal thread section, the first connecting member further having a fixing portion configured to be fixedly connected to a grounding body, and a limiting surface is provided on the outer peripheral wall of the first connecting member to restrict the circumferential rotation of the grounding terminal;

[0009] A second connecting member, the second connecting member being a bolt having an external thread section, the external thread section being inserted into the first through hole to be in mating connection with the internal thread end;

[0010] When the external thread section and the internal thread section are in a mating connection state, the grounding terminal is fixed between the first connecting member and the second connecting member.

[0011] Compared with the circumferential limiting of the grounding terminal and the vehicle body panel in the prior art, in the embodiment of the present application, the limiting surface for restricting the circumferential rotation of the grounding terminal is located on the first connecting member. In this way, when assembling the grounding terminal, only the mating relationship with the first connecting member needs to be considered, which has nothing to do with the third component. The installation is simple and the installation efficiency can be improved. That is, the first connecting member can play a role in bearing and circumferential limiting for the grounding terminal, and there is no need to open a limiting hole on the vehicle body, which is beneficial to optimizing the vehicle body structure.

[0012] In one example, the first connecting member includes a first shaft section and a second shaft section. The fixing portion is arranged on the second shaft section, and the limiting surface is arranged on the circumferential wall of the first shaft section. When the external thread section and the internal thread section are in a mating connection state, the grounding terminal is supported on the end of the first shaft section far from the second shaft section.

[0013] In one example, the grounding terminal is buckled on the end face of the first shaft section. The grounding terminal has a second through hole, and the external thread section passes through the second through hole to connect with the internal thread section;

[0014] The grounding terminal has an extension section, and the extension section extends along the axial direction of the first shaft section, and the extension section abuts against the limiting surface.

[0015] In one example, along the circumferential direction of the first shaft section, the first connecting member has at least two limiting surfaces, and the grounding terminal has extension sections corresponding to the limiting surfaces one by one.

[0016] In one example, the outer peripheral wall of the first shaft section is a polygonal cylindrical surface, and the side surface of the polygonal cylindrical surface is the limiting surface;

[0017] Or the outer peripheral wall of the first shaft section includes at least two planes and arc surfaces connecting between the planes. The planes extend along the axial direction of the first shaft section, and the planes are the limiting surfaces.

[0018] In one example, the second shaft section includes a riveting shaft section connected to the first shaft section, the fixing portion includes the riveting shaft section, and the first connecting member is riveted and fixed to the grounding body through the riveting shaft section.

[0019] In one example, the outer contour of the cross section of the outer peripheral wall of the riveting shaft section is non-circular to circumferentially limit the riveting hole on the grounding body.

[0020] In one example, the outer diameter of the first shaft section is greater than that of the second shaft section, a stepped surface is formed between the first shaft section and the second shaft section, the stepped surface faces the second shaft section, and at least one tooth structure is provided on the stepped surface. When the fixing part is riveted and fixed to the grounding body, at least part of the tooth structure is pressed into the grounding body;

[0021] Alternatively, and / or, the first through hole includes a connected optical hole section and the internal thread section, the diameter of the optical hole section is greater than the maximum diameter of the internal thread section, and the optical hole section is located in the riveting shaft section and the first shaft section.

[0022] In one example, a tapered surface is provided on the outer wall of the end of the second shaft section away from the first shaft section, and the diameter of the tapered surface gradually decreases along the axial direction of the second shaft section.

[0023] The embodiment of the present application also provides a vehicle, including a vehicle body, and further including the grounding device according to any one of the above, and the grounding body is located in the vehicle body.

[0024] In the embodiment of the present application, since the vehicle has the above grounding device, it also has the above technical effects of the grounding device. Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of the grounding device in an embodiment of the present application, which shows the grounding body and the grounding terminal;

[0026] Figure 2 It is Figure 1 a top view of the structure shown;

[0027] Figure 3 It is Figure 1 a schematic structural diagram of the first connecting member in;

[0028] Figure 4 It is Figure 3 another direction view of the first connecting member;

[0029] Among them, Figures 1 to 4 the one-to-one correspondence between the reference numerals in and the component names is as follows:

[0030] 1 Second connecting member; 2 Grounding terminal; 20 Tooth structure; 21 Annular cover body; 22 Extension section; 23 First connection end; 3 Grounding body; 4 First connecting member; 10 First shaft section; 11 Limiting surface; 30 Second shaft section; 31 Fixing part; 32; 40 Tapered surface; 50 First through hole; 51 Optical hole section; 52 Internal thread section. Detailed Description of the Embodiment

[0031] Please refer to Figure 1 、 Figure 2 andFigure 3 , Figure 1 is a schematic structural view of a grounding device in an embodiment of the present application; Figure 2 is Figure 1 a top view of the structure shown; Figure 3 is Figure 1 a schematic structural view of the first connecting member in Figure 4 is Figure 3 another direction view of the first connecting member.

[0032] The embodiment of the present application provides a grounding device, which can be applied to vehicles, and of course can also be applied to other environments that need grounding. Taking the grounding device applied to vehicles as an example, the technical solutions and technical effects are continued to be introduced herein.

[0033] In one embodiment, the vehicle includes a vehicle body and several electrical components. In order to ensure the safe operation of the electrical components, the electrical components need to be electrically connected to the grounding body 3 on the vehicle body through the grounding device to achieve grounding of the electrical components. The so-called grounding body 3 is a conductor that contacts the earth soil and provides an electrical connection with the earth. For those skilled in the art, which components on the vehicle body are the grounding body 3 is clear, and the grounding body 3 is not specifically described herein.

[0034] In the embodiment of the present application, the grounding device includes a first connecting member 4 and a second connecting member 1. The second connecting member 1 is a bolt with an external thread section. The first connecting member 4 includes a first through hole, and the first through hole has an internal thread section, that is, the first connecting member 4 is an internal thread component and can be called a nut. The external thread section of the bolt can be inserted into the first through hole to be threadedly engaged with the internal thread section. The first connecting member 4 further has a fixing portion 31 and a limiting surface 11. The fixing portion 31 is configured as a structure for fixedly connecting with the grounding body 3. The fixing portion 31 and the grounding body 3 can be connected in a variety of ways, as long as the reliable connection between the two can be achieved. For example, the fixing portion 31 can be configured as a clamping structure, and the grounding body 3 is also provided with a structure that cooperates with the fixing portion 31 for clamping connection. The fixing portion 31 and the grounding body 3 are clamped and connected, and the connection method is relatively simple. Or the fixing portion 31 is configured as a riveting structure, and the grounding body 3 is provided with a riveting hole. The fixing portion 31 and the riveting hole are riveted and cooperated for connection, and this connection method has relatively high reliability.

[0035] In another embodiment, the fixing portion 31 and the grounding body 3 can be fixedly connected by interference fit or crimping connection, etc. The interference fit and crimping connection are relatively firm and are not easily loosened due to factors such as vibration, which is beneficial to the reliable connection between the first connecting member 4 and the grounding body 3.

[0036] The above connection methods such as clamping, riveting, crimping, and interference fit are not limited by the material of the grounding body 3, have high versatility, and are beneficial to reducing the use cost of the vehicle to a certain extent.

[0037] Of course, it is not excluded that the fixing part 31 and the grounding body 3 can be connected by welding.

[0038] In the embodiment of the present application, the limiting surface 11 is located on the outer peripheral wall of the first connecting member 4. The limiting surface 11 is mainly used to cooperate with the structure on the grounding terminal 2 to limit the circumferential rotation of the grounding terminal 2. That is to say, under the action of the limiting surface 11, the grounding terminal 2 cannot rotate circumferentially relative to the first connecting member 4, so as to realize the circumferential position constraint between the grounding terminal 2 and the first connecting member 4. The structure of the limiting surface 11 can also have various forms. For example, the limiting surface 11 can be a limiting block or a limiting groove or a non-arc surface and other structures.

[0039] The grounding terminal 2 includes a first connection end 23 for electrically connecting an electrical device or a wire harness connected to the electrical device.

[0040] In the embodiment of the present application, when the external thread section and the internal thread section are in a mating connection state, the grounding terminal 2 is fixed between the first connecting member 4 and the second connecting member 1.

[0041] Compared with the circumferential limit of the grounding terminal 2 and the vehicle body panel in the prior art, in the embodiment of the present application, the limiting surface 11 that restricts the circumferential rotation of the grounding terminal 2 is located on the first connecting member 4. In this way, when the grounding terminal 2 is assembled, only the mating relationship with the first connecting member 4 needs to be considered, which has nothing to do with the third component. The installation is simple and the installation efficiency can be improved. That is, the first connecting member 4 can play a role in carrying and circumferentially limiting the grounding terminal, and there is no need to open a limiting hole on the vehicle body, which is beneficial to optimizing the vehicle body structure.

[0042] In the embodiment of the present application, the first connecting member 4 is an internal thread member, such as a nut. The second connecting member 1 is an external thread member, such as a bolt. The first connecting member 4 and the second connecting member 1 are fixed by thread fitting, with a simple structure and reliable connection. The bolt can be a standard part, such as a hexagon bolt, which is easy to replace and cheap. Of course, the second connecting member 1 can also be a non-standard part, and the shape of the second connecting member 1 can be reasonably selected according to the use environment. Similarly, the first connecting member 4 can be a standard nut, which is easy to replace and cheap; of course, the first connecting member 4 can also be a non-standard nut.

[0043] In the embodiment of the present application, the first connecting member 4 includes a first shaft section 10 and a second shaft section 30. The fixing portion 31 is provided on the second shaft section 30. The fixing portion 31 may include the entire second shaft section 30. Of course, it may also be a partial shaft section of the second shaft section 30. In other words, the entire shaft section of the second shaft section 30 may be provided with the fixing portion 31, or a partial shaft section may be provided with the fixing portion 31. The specific length of the second shaft section 30 may be determined according to the specific use environment. For example, if the required bonding force between the fixing portion 31 and the grounding body 3 is relatively large, the second shaft section 30 may be set to a longer length. In this way, the size of the fixing portion 31 is also relatively large, so that the contact area is large when the grounding body 3 and the fixing portion 31 are connected, and the fixing is relatively reliable.

[0044] In the embodiment of the present application, the limiting surface 11 is provided on the first shaft section 10. The length of the first shaft section 10 may also be determined according to the specific use environment, such as the structure of the limiting surface 11, etc. When the internal thread section 52 and the external thread section are in a mating connection state, the grounding terminal 2 is supported on the end of the first shaft section 10 away from the second shaft section 30. In this way, the end of the first shaft section 10 can play a supporting role for the grounding terminal, which is beneficial to the reliable fixation of the grounding terminal 2.

[0045] In one embodiment, the end surface of the first shaft section 10 away from the second shaft section 30 may be a flat surface, and the grounding terminal 2 is supported on this flat surface, and the flat surface is simple to machine. Of course, the end surface of the first shaft section 10 away from the second shaft section 30 may also be a non-flat surface structure, such as an arc surface or other curved surfaces.

[0046] In the embodiment of the present application, the grounding terminal is buckled on the end surface of the first shaft section 10. As Figure 2 shown, the grounding terminal 2 has an annular cover body 21. The annular cover body 21 is buckled on the end surface of the first shaft section 10, and the extension section 22 extends downward from the annular cover body 21. The first through hole 50 penetrates through the first shaft section 10 and the second shaft section 30. The grounding terminal 2 has a second through hole (not marked in the figure). The external thread section of the bolt passes through the second through hole and connects to the internal thread section inside the first through hole 50. In this embodiment, the second connecting member 1 can be inserted into the first through hole 50 from one end of the first connecting member 4 to be fixedly connected to the internal thread section located inside the first through hole 50. The internal thread section is located inside the first through hole 50 and does not occupy the external space of the first connecting member 4, and the structure is compact.

[0047] In one embodiment, the limiting surface 11 is located on the outer peripheral wall of the first shaft section 10. The grounding terminal 2 has at least one extension section 22. The extension section 22 extends along the axial direction of the first shaft section 10. The extension section 22 cooperates with the limiting surface 11 to limit the circumferential rotation of the grounding terminal 2. In this way, the grounding terminal can be buckled on the second shaft section 30 from the side of the first shaft section 10 away from the second shaft section 30, and the circumferential limit of the grounding terminal is realized while buckling, and the installation is fast.

[0048] In one embodiment, the outer peripheral wall of the first shaft segment 10 is non-circular. The grounding terminal 2 may also have a structure matching the first shaft segment 10. After the two are inserted, the grounding terminal cannot rotate circumferentially relative to the first shaft segment 10. For example, the outer contour of the first shaft segment 10 is polygonal. In the figure, the cross-section of the outer peripheral wall of the first shaft segment 10 is shown as a regular hexagon. Of course, it can also be other polygons, such as a pentagon or a triangle, etc. Of course, the cross-section of the outer peripheral wall of the first shaft segment 10 can also be a special-shaped structure combining an arc and a straight line.

[0049] In a specific structure, along the circumferential direction of the first shaft segment, the outer peripheral wall of the first shaft segment 10 includes at least one plane, and each plane extends along the axial direction of the first shaft segment 10. The limiting surface 11 is a plane, and the plane is simple to process.

[0050] When the number of the limiting surfaces 11 is greater than or equal to two, the grounding terminal 2 has extension segments 22 corresponding to the limiting surfaces 11 one by one, which can play a better circumferential limiting role for the grounding terminal 2.

[0051] In one embodiment, the outer peripheral wall of the first shaft segment 10 is a polygonal cylindrical surface, such as a hexagonal prism, a quadrangular prism, a triangular prism, or a quadrangular prism, etc. The side surface of the polygonal cylindrical surface is the limiting surface; the processing technology of the cylindrical surface is simple.

[0052] In another embodiment, the outer peripheral wall of the first shaft segment 10 includes at least two planes and arc surfaces connected between the planes. The planes extend along the axial direction of the first shaft segment 10, and the planes are the limiting surfaces. The first shaft segment 10 of this structure uses relatively less material and is light in weight.

[0053] In the embodiment of the present application, the second shaft segment 30 includes a riveting shaft segment connected to the first shaft segment 10, and the fixing part 31 includes a riveting shaft segment. The first connecting piece 4 is riveted and fixed to the grounding body 3 through the riveting shaft segment. The riveting and fixing process is simple, and it can be applied to various vehicle models and is flexible to use.

[0054] In a specific embodiment, the cross-section of the outer peripheral wall of the riveting shaft segment is non-circular to circumferentially limit the riveting hole on the grounding body 3. The cross-section of the outer peripheral wall of the riveting shaft segment can be polygonal. Correspondingly, the grounding body 3 on the vehicle body is provided with a polygonal hole to be paired with the fixing part 31, and a greater rotational torque can be achieved after blind riveting; and the non-circular cross-section of the outer peripheral wall of the riveting shaft segment can further be used to define the orientation of the grounding terminal 2, so that the direction of the grounding terminal 2 can be in the required direction.

[0055] In the present application, the cross-section refers to a section perpendicular to the axial direction of the first shaft segment 10.

[0056] Figure 1It is shown that the outer peripheral wall of the riveting shaft section (fixed part 31) is hexagonal. Of course, the shape of the fixed part 31 is not limited to hexagon, and triangles, quadrilaterals or other deformations are also acceptable.

[0057] In the embodiment of the present application, the outer diameter of the first shaft section 10 is greater than that of the second shaft section 30. A stepped surface is formed between the first shaft section 10 and the second shaft section 30, and the stepped surface faces the second shaft section 30. At least one tooth structure 20 is arranged on the stepped surface. When the fixed part 31 is riveted and fixed to the grounding body 3, at least part of the tooth structure 20 is pressed into the grounding body 3. When the fixed part 31 is riveted to the grounding body 3, the tooth structure can be embedded into the vehicle body panel, increasing the contact area and making the electrical conductivity more stable.

[0058] In the embodiment of the present application, the end of the second shaft section 30 away from the first shaft section 10 is a tapered surface 40, and along the axial direction of the second shaft section 30, the diameter of the tapered surface 40 gradually decreases. When the fixed part 31 is riveted to the grounding body 3, the tapered surface 40 can play a guiding role when the second shaft section 30 penetrates the sheet metal, improving the assembly efficiency.

[0059] In addition, the first through hole 50 includes a connected light hole section 51 and an internal thread section 52. The diameter of the light hole section 51 is greater than the maximum diameter of the internal thread section 52. The light hole section 51 is located in the riveting shaft section and the first shaft section 10. In this way, during riveting, the light hole section 51 is more likely to deform, enabling the fixed part 31 to be firmly riveted to the grounding body 3 after riveting.

[0060] It can be seen from the overall description above that in the grounding device provided by the embodiment of the present application, the limiting surface 11 on the first connecting member 4 plays a circumferential limiting and supporting role for the grounding terminal 2, without damaging the vehicle body panel structure. The first connecting member 4 can be riveted to the grounding body 3 without welding cooperation, enabling the grounding device to be applicable to grounding bodies of various materials, and the grounding device has relatively high flexibility in use.

[0061] In the description of the embodiment of the present application, the term "comprise", "include" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0062] In the embodiment of the present application, "and / or" is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this text generally represents an "or" relationship between the associated objects before and after.

[0063] In this text, specific examples are used to elaborate on the principles and implementation manners of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principles of the present application, several improvements and modifications can still be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A grounding device, characterized in that, Comprising: A first connecting member, including a first through hole having an internal threaded section, the first connecting member further having a fixing portion configured to be fixedly connected to a grounding body, and a limiting surface is provided on the outer peripheral wall of the first connecting member to limit the circumferential rotation of the grounding terminal; A second connecting member, which is a bolt having an external threaded section, and the external threaded section is inserted into the first through hole to be in mating connection with the internal threaded section; When the external threaded section and the internal threaded section are in a mating connection state, the grounding terminal is fixed between the first connecting member and the second connecting member.

2. The grounding device according to claim 1, characterized in that, The first connecting member includes a first shaft section and a second shaft section, the fixing portion is provided on the second shaft section, and the limiting surface is provided on the outer peripheral wall of the first shaft section. When the external threaded section and the internal threaded section are in a mating connection state, the grounding terminal is supported at the end of the first shaft section away from the second shaft section.

3. The grounding device according to claim 2, characterized in that, The grounding terminal is buckled on the end surface of the first shaft section, the grounding terminal has a second through hole, and the external threaded section passes through the second through hole to connect the internal threaded section; The grounding terminal has an extension section that extends along the axial direction of the first shaft section, and the extension section abuts against the limiting surface.

4. The grounding device according to claim 3, characterized in that, Circumferentially along the first shaft section, the first connecting member has at least two limiting surfaces, and the grounding terminal has extension sections corresponding to the limiting surfaces one by one.

5. The grounding device according to claim 4, characterized in that, The outer peripheral wall of the first shaft section is a polygonal cylindrical surface, and the side surface of the polygonal cylindrical surface is the limiting surface; Alternatively, the outer peripheral wall of the first shaft section includes at least two planes and arc surfaces connecting between the planes, the planes extend along the axial direction of the first shaft section, and the planes are the limiting surfaces.

6. The grounding device according to any one of claims 2 to 5, characterized in that, The second shaft section includes a riveting shaft section connected to the first shaft section, the fixing portion includes the riveting shaft section, and the first connecting member is fixedly riveted to the grounding body through the riveting shaft section.

7. The grounding device according to claim 6, characterized in that, The outer contour of the cross section of the outer peripheral wall of the riveting shaft section is non-circular to circumferentially limit the riveting hole on the grounding body.

8. The grounding device according to claim 6, wherein The outer diameter of the first shaft section is larger than the outer diameter of the second shaft section, a step surface is formed between the first shaft section and the second shaft section, the step surface faces the second shaft section, and at least one tooth structure is provided on the step surface. When the fixing portion is fixedly riveted to the grounding body, at least part of the tooth structure is pressed into the grounding body; Or / and, the first through hole includes a connected optical hole section and the internal threaded section, the diameter of the optical hole section is larger than the maximum diameter of the internal threaded section, and the optical hole section is located in the riveting shaft section and the first shaft section.

9. The grounding device according to any one of claims 2 to 5, characterized in that A conical surface is provided on the outer wall of the end of the second shaft section away from the first shaft section, and the diameter of the conical surface gradually decreases along the axial direction of the second shaft section.

10. A vehicle, comprising a vehicle body, characterized in that, It further includes the grounding device according to any one of claims 1 to 9, and the grounding body is located on the vehicle body.

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