Stud clamping piece for fixing wire harness, stud fixing device and automobile

Abstract

The utility model relates to a stud clamping piece for fixing a wire harness, a stud fixing device and an automobile. The stud clamping piece for fixing the wire harness is used for being installed on a vehicle body, the stud clamping piece comprises a columnar main body, a crimping part and a supporting convex part, the columnar main body is used for connecting and fixing the wire harness and comprises a first end part and a second end part, the first end part is used for being installed towards the vehicle body, the crimping part is arranged at the first end part of the columnar main body, and the supporting convex part is arranged at the second end part of the columnar main body. The crimping part is provided with a crimping surface opposite to the columnar main body, the supporting convex part is arranged in a manner of protruding and extending from the crimping surface to the direction far away from the columnar main body, a mounting end surface is formed at the tail end of the supporting convex part, and a crimping space for crimping a sheet-shaped object is formed between the crimping surface and the mounting end surface. The stud fixing device and the automobile provided by the utility model comprise the stud clamping piece. According to the stud clamping piece for fixing the wire harness, the stud fixing device and the automobile, the assembly structure can be simplified, the assembly complexity is reduced, and the space and the cost are saved.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a stud clamp for fixing a wiring harness, a stud fixing device, and an automobile. Background Art

[0002] High-voltage wiring harnesses used in automobiles require stud clamps for securing and routing. Prior art stud clamps used to secure automotive high-voltage wiring harnesses are generally divided into two categories: one type secures the high-voltage wiring harness to the side of the stud clamp, where it is attached to the side of the stud clamp using cable ties; the other type secures the high-voltage wiring harness to the top of the stud clamp, where it is attached to the top surface of the stud clamp using cable ties.

[0003] If the high-voltage wiring harness is fixed on the side, the entire high-voltage wiring harness will be pressed against the body sheet metal. The sound insulation cotton attached to the body sheet metal needs to have an escape space cut out for the entire high-voltage wiring harness, otherwise the high-voltage wiring harness will interfere with the sound insulation cotton. However, cutting out the escape space affects the integrity of the sound insulation cotton, thereby affecting the sound insulation effect. If the high-voltage wiring harness is fixed on the top, the bottom area of ​​the stud clamp is usually too small to press the sound insulation cotton like a plastic nut. Therefore, the stud clamp cannot be used to fix the sound insulation cotton. Separate studs must be added to the body sheet metal and plastic nuts must be used to fix the sound insulation cotton. This increases the number of welded studs on the body, making the structure and assembly complex.

[0004] In view of this, it is necessary to propose a new technical solution to overcome the shortcomings of the existing technology. Utility Model Content

[0005] Based on this, the present application provides a stud clamp for fixing a wire harness, a stud fixing device and an automobile. The stud clamp can be used to fix the wire harness and the acoustic package, which can simplify the assembly structure, reduce assembly complexity, and save space and cost.

[0006] To this end, the present application adopts the following technical solution: a stud clamp for fixing a wire harness, which is used to be installed with a vehicle body, the stud clamp comprising a columnar body, a crimping portion and a supporting protrusion, the columnar body being used for connecting and fixing the wire harness, and comprising a first end and a second end, the first end being used for installation toward the vehicle body, the crimping portion being arranged at the first end of the columnar body, the crimping portion having a crimping surface facing away from the columnar body, the supporting protrusion protruding from the crimping surface in a direction away from the columnar body and forming a mounting end surface at its end, a crimping space for crimping a sheet-like object being formed between the crimping surface and the mounting end surface.

[0007] In some embodiments, the second end of the columnar body supports the wiring harness.

[0008] In some embodiments, the wire harness is fixed to the wire harness supporting surface of the second end portion of the columnar body by a cable tie.

[0009] In some embodiments, the distance between the crimping surface and the mounting end surface is 0.5-1.5 mm.

[0010] In some embodiments, the area of ​​the crimping surface is larger than the area of ​​the mounting end surface.

[0011] In some embodiments, the stud clamp has a fixing hole extending axially through the columnar body.

[0012] In some embodiments, the columnar body, the crimping portion and the supporting protrusion are integrally formed.

[0013] The present application also adopts the following technical solution: a stud fixing device, which includes a stud fixed on a vehicle body sheet metal and a stud clamp as described in any of the above embodiments, wherein the stud clamp is mounted on the stud through a fixing hole.

[0014] In some embodiments, the stud is welded to the vehicle body sheet metal.

[0015] The present application also adopts the following technical solution: an automobile, comprising a body sheet metal, an acoustic package attached to the body sheet metal, a wiring harness routed outside the acoustic package, and the stud fixing device as described above, wherein the supporting protrusion of the stud clamp passes through the acoustic package, and the crimping portion is crimped to the outer surface of the acoustic package.

[0016] The stud clamp for fixing a wire harness provided in the present application includes a columnar body, a crimping portion and a supporting protrusion. The columnar body is used for connecting and fixing the wire harness. The crimping portion is arranged at one end of the columnar body. The crimping portion has a crimping surface facing away from the columnar body. The supporting protrusion protrudes from the crimping surface in a direction away from the columnar body and forms a mounting end surface at its end. A crimping space for crimping a sheet object is formed between the crimping surface and the mounting end surface. In this way, the stud clamp provided in the present application is used for both fixed connection of the wire harness and crimping and fixing sheet objects such as acoustic packages attached to the body sheet metal, realizing multiple uses of one item, simplifying the assembly structure, reducing assembly complexity, and saving space and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a three-dimensional diagram of an embodiment of a stud clamp for fixing a wire harness of the present application.

[0019] Figure 2 This is a three-dimensional view from another perspective of an embodiment of a stud clamp for fixing a wiring harness of the present application.

[0020] Figure 3 This is a three-dimensional diagram of an embodiment of a stud clamp for fixing a wiring harness of the present application applied to a vehicle body.

[0021] The reference numerals of the components are as follows:

[0022] 1. Stud clamp; 101. Fixing hole; 11. Columnar body; 110. Wire harness support surface; 111. First end; 112. Second end; 12. Crimping portion; 120. Crimping surface; 13. Support protrusion; 130. Mounting end surface; 2. Wire harness; 3. Body sheet metal; 4. Acoustic package. DETAILED DESCRIPTION

[0023] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0024] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0026] In this application, unless otherwise expressly specified or limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or that the first feature and the second feature are indirectly in contact through an intermediate medium. Furthermore, a first feature being “above,” “above,” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below,” “below,” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the relevant listed items.

[0028] See also Figures 1 to 3 As shown, the present application provides a stud clamp 1 for fixing a wiring harness, which is used for installation on a vehicle body. The stud clamp 1 includes a columnar body 11, a crimping portion 12, and a supporting protrusion 13. The columnar body 11 is used to support and fix the wiring harness 2, and the crimping portion 12 is used to crimp sheet-like objects such as acoustic packs and thermal insulation pads attached to the vehicle body. In other words, the stud clamp 1 provided in the present application is used for both fixed connection of the wiring harness 2 and crimping and fixing sheet-like objects such as acoustic packs 4 attached to the vehicle body.

[0029] Specifically, in this embodiment, the columnar body 11 is used for connection and fixation of the wiring harness 2. It includes a first end 111 and a second end 112, the first end 111 is used for installation toward the vehicle body, and the crimping portion 12 is provided at the first end 111 of the columnar body 11. The crimping portion 12 has a crimping surface 120 facing away from the columnar body 11. The supporting protrusion 13 is provided to protrude from the crimping surface 120 in a direction away from the columnar body 11 and forms a mounting end surface 130 at its end. A crimping space for crimping a sheet-like object is formed between the crimping surface 120 and the mounting end surface 130. Figure 1 As shown in FIG, L is the thickness of the crimping space, that is, the distance between the crimping surface 120 and the mounting end surface 130 .

[0030] The stud clamp 1 for fixing the wire harness provided in the present application forms a crimping space for crimping sheet objects between the crimping surface 120 and the mounting end surface 130. In this way, the stud clamp 1 provided in the present application can be used for both the fixed connection of the wire harness 2 and the crimping and fixing of sheet objects such as acoustic packages attached to the vehicle body, thereby achieving multiple uses of one item, simplifying the assembly structure, reducing assembly complexity, and saving space and cost.

[0031] The mounting end face 130 is used to fit the vehicle body when the stud clamp 1 is installed on the vehicle body. In this embodiment, the distance L between the crimping surface 120 and the mounting end face 130 is 0.5-1.5 mm. The distance L matches the thickness of the sheet to be crimped by the crimping portion 12. Specifically, the distance L is equal to or slightly smaller than the thickness of the sheet to be crimped, so as to ensure that the sheet to be crimped can be pressed and fixed. In this embodiment, the distance L is 1 mm, and the sheet to be crimped is the acoustic package 4.

[0032] The acoustic package 4 is an acoustic material package designed to achieve optimal NVH (Noise, Vibration, Harshness) performance for the vehicle. Specifically, it includes a dash pad, hood insulation, and ceiling sound-absorbing material. Applied to the vehicle body, the acoustic package 4 effectively blocks noise transmission. It provides sealing, shock absorption, sound insulation, and sound absorption, serving as a specific passive noise reduction measure.

[0033] In this embodiment, the area of ​​the crimping surface 120 is larger than the area of ​​the mounting end surface 130. Both the crimping surface 120 and the mounting end surface 130 are annular surfaces. Preferably, the mounting end surface 130 and the crimping surface 120 are concentrically arranged. By concentrically arranging the mounting end surface 130 and the crimping surface 120, when the mounting end surface 130 is in contact with the vehicle body, the pressure exerted by the crimping surface 120 on the acoustic package 4 is evenly distributed around the supporting protrusion 13, which can reduce the tendency of the stud clamp 1 to tilt and ensure the stability of the connection of the stud clamp 1 to the vehicle body. Of course, in other embodiments, the crimping surface 120 and the mounting end surface 130 can also be set to other shapes, such as elliptical, rectangular, etc. In this embodiment, the diameter of the mounting end surface 130 can be the same as or different from that of the columnar body 11.

[0034] In this embodiment, the wiring harness 2 is a high-voltage line in a car, used to transmit high voltage and high current, for example, a high-voltage line that transmits power to the battery management system and motor control system of an electric car. In other embodiments, the wiring harness 2 can also transmit low voltage, such as transmitting power for the vehicle's auxiliary systems and electronic control units. The wiring harness 2 can be a single cable or multiple cables. Please continue to read Figure 1 and Figure 2 As shown, in this embodiment, the second end 112 of the columnar body 11 supports the wiring harness 2. The top surface of the second end 112 of the columnar body 11 is the wiring harness support surface 110. By supporting the wiring harness 2 on the top surface of the columnar body 11, the wiring harness 2 can be kept away from the acoustic package 4 to avoid interference between the wiring harness 2 and the acoustic package 4, or a clearance groove for the wiring harness needs to be opened on the acoustic package 4 to ensure the structural integrity and installation reliability of the acoustic package 4. In this embodiment, the wiring harness 2 is fixed to the second end 112 of the columnar body 11 by a cable tie. The cable tie can be an independent component or can be molded on the stud clamp 1 as part of the structure of the stud clamp 1. In this embodiment, the columnar body 11, the crimping portion 12 and the supporting protrusion 13 are integrally molded. The stud clamp 1 is a plastic part, and the columnar body 11, the crimping portion 12 and the supporting protrusion 13 are integrally molded.

[0035] In this embodiment, the stud clamp 1 has a fixing hole 101 extending axially through the columnar body 11. The fixing hole 101 is used to connect and secure with a stud on the vehicle body. Specifically, the fixing hole 101 can be secured to the stud on the vehicle body by an interference fit, a snap-on connection, or a threaded connection.

[0036] The present application also provides a stud fixing device. The stud fixing device includes a stud fixed to a vehicle body sheet metal 3 and a stud clamp 1 as described in any of the above embodiments, wherein the stud clamp 1 is mounted on the stud through a fixing hole 101. In one embodiment, the stud is welded to the vehicle body sheet metal 3.

[0037] The present application also provides an automobile, which includes a body sheet metal 3, an acoustic package 4 attached to the body sheet metal 3, a wiring harness 2 routed outside the acoustic package 4, and the stud fixing device as described above, wherein the acoustic package 4 is provided with a corresponding through-hole for the supporting protrusion 13 on the stud clamp 1 to pass through, the area of ​​the through-hole is smaller than the area of ​​the crimping surface 120, the supporting protrusion 13 passes through the acoustic package 4, and the crimping portion 12 is crimped to the outer surface of the acoustic package 4.

[0038] This application addresses the shortcomings of traditional wiring harness stud clamps and redesigns their structure. The stud clamp 1 provided in this application is installed in conjunction with studs provided on the vehicle body sheet metal 3, enabling the wiring harness 2 and acoustic package 4 to be fixed together without affecting the profile of the acoustic package 4. The wiring harness 2 is fixed to the top of the columnar body 11 of the stud clamp 1, supporting the entire wiring harness 2 while leaving a gap between the stud clamp 1 and the acoustic package 4. Simultaneously, the crimping portion 12 of the stud clamp 1 secures the acoustic package 4, improving the utilization rate of the welded studs on the vehicle body sheet metal 3 and thereby reducing the overall vehicle cost.

[0039] From the above description of the specific embodiments, it can be seen that the stud clamp 1 for fixing the wire harness provided in the present application includes a columnar body 11, a crimping portion 12 and a supporting protrusion 13. The columnar body 11 is used for connecting and fixing the wire harness 2, and the crimping portion 12 is arranged at one end of the columnar body 11. The crimping portion 12 has a crimping surface 120 facing away from the columnar body 11, and the supporting protrusion 13 protrudes from the crimping surface 120 in a direction away from the columnar body 11 and forms a mounting end surface 130 at its end. A crimping space for crimping the acoustic package 4 is formed between the crimping surface 120 and the mounting end surface 130. In this way, the stud clamp 1 provided in the present application is used for both the fixed connection of the wire harness 2 and the crimping and fixing of sheet objects such as the acoustic package 4 attached to the vehicle body sheet metal 3, realizing multiple uses of one thing, simplifying the assembly structure, ensuring the utilization rate of the welding studs on the vehicle body sheet metal 3, reducing the assembly complexity, and saving space and cost.

[0040] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of patent protection for the present application shall be determined by the appended claims.

Claims

1. A stud clamp for fixing a wiring harness, for installation on a vehicle body, characterized in that: The stud clamp includes a columnar body, a crimping portion and a supporting protrusion. The columnar body is used for connecting and fixing a wiring harness, and includes a first end and a second end. The first end is used for installation toward the vehicle body. The crimping portion is provided at the first end of the columnar body. The crimping portion has a crimping surface facing away from the columnar body. The supporting protrusion protrudes from the crimping surface in a direction away from the columnar body and forms a mounting end surface at its end. A crimping space for crimping a sheet is formed between the crimping surface and the mounting end surface.

2. The stud clamp for fixing a wiring harness according to claim 1, characterized in that: The second end portion of the columnar body supports the wire harness.

3. The stud clamp for fixing a wiring harness according to claim 2, characterized in that: The wire harness is fixed to the wire harness supporting surface of the second end portion of the columnar body by a cable tie.

4. The stud clamp for fixing a wiring harness according to claim 3, characterized in that: The distance between the crimping surface and the mounting end surface is 0.5-1.5 mm.

5. The stud clamp for fixing a wiring harness according to claim 4, characterized in that: The area of ​​the crimping surface is larger than the area of ​​the mounting end surface.

6. The stud clamp for fixing a wiring harness according to claim 1, characterized in that: The stud clamp has a fixing hole that penetrates along the axial direction of the columnar body.

7. The stud clamp for fixing a wiring harness according to claim 1, characterized in that: The columnar body, the crimping portion and the supporting protrusion are integrally formed.

8. A stud fixing device, characterized in that: It comprises a stud fixed on a vehicle body sheet metal and a stud clamp as claimed in any one of claims 1 to 7, wherein the stud clamp is sleeved on the stud through a fixing hole.

9. The stud fixing device according to claim 8, characterized in that The stud is connected to the vehicle body sheet metal by welding.

10. An automobile, characterized in that: It comprises a body sheet metal, an acoustic package attached to the body sheet metal, a wiring harness routed outside the acoustic package, and a stud fixing device as described in claim 8 or 9, wherein the supporting protrusion of the stud clamp passes through the acoustic package, and the crimping portion is crimped to the outer surface of the acoustic package.

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