Sacrificial plate, fastening device having such sacrificial plate, and method for fastening by means of such fastening device

Abstract

According to the invention, there is provided a sacrificial plate for plastic welding, in particular a sacrificial plate of a fastening device for fastening a first component to a second component, in particular a cable to a carrier component of a motor vehicle. The sacrificial plate includes: a plate-shaped base body having a sacrificial side; and at least one or more energy guides arranged on the sacrificial side wherein the energy guides are substantially configured as quadrilateral prisms on which trilateral prisms are molded.

Description

Technical Field

[0001] The present invention relates to a sacrificial plate for plastic welding, a fastening device for fastening a first component to a second component, specifically a cable to a carrier component, and a method for fastening such a fastening device. Background Technology

[0002] Such fastening devices are configured as cable clamps and include one or more slots for connecting one or more cables to a carrier component, specifically a motor vehicle.

[0003] The cable clamp is constructed in two parts, including the cable clamp itself and one or more sacrificial plates that can be inserted into the cable clamp. To assemble such a cable clamp, the sacrificial plates must be inserted manually or automatically into the corresponding recesses of the cable clamp before use.

[0004] The sacrificial plate is constructed to be flat. One or more energy directors are arranged on one side of the sacrificial plate. These energy directors have an isosceles or equilateral triangular shape in cross-section.

[0005] The number of angles on the base surface of a prism determines its name.

[0006] The base surface and the top surface are parallel to each other and are polygonal.

[0007] If the base surface is triangular, it is called triangular Pr (Pr with a triangular base surface has 3 rectangles as lateral surfaces).

[0008] If the base surface is a quadrilateral, it is called a quadrilateral Pr (a Pr with a quadrilateral base surface has 4 rectangles as lateral surfaces).

[0009] If the base region is pentagonal, it is called pentagonal Pr (Pr with a pentagonal base region has 5 rectangles as lateral surfaces).

[0010] Therefore, it is named after its base surface (cross-sectional area).

[0011] Two equal surfaces do not automatically become the base surface and the top surface.

[0012] The distance between the base surface and the top surface (=body height) is the same length at every point of the prism.

[0013] A given polygon is called the base surface, and another boundary surface congruent to and parallel to the base surface is called the top surface. The collective of all remaining boundary surfaces is called the lateral surface. This consists of parallelograms, or, in the special case of right prisms, rectangles. Summary of the Invention

[0014] The problem solved by the present invention is to provide a sacrificial plate for plastic welding, and a fastening device for fastening a first component to a second component, specifically for fastening a cable to a carrier component of a motor vehicle, which makes it easier to handle and use.

[0015] Another problem solved by the present invention is the formation of a sacrificial plate and a fastening device having such a sacrificial plate, which allows the fastening device, specifically the sacrificial plate, to be connected to the corresponding component or cable more securely and reliably.

[0016] Furthermore, the present invention addresses the problem of providing a sacrificial plate for plastic welding and a fastening device having such a sacrificial plate, which represents an alternative to devices known in the prior art.

[0017] One or more of these problems are addressed by the features of independent claims 1, 5, and 10. Advantageous constructions are specified in the corresponding dependent claims.

[0018] According to the present invention, a sacrificial plate for plastic welding is provided, specifically for a fastening device for fastening a first component to a second component, and specifically for fastening a cable to a carrier component of a motor vehicle. The sacrificial plate includes: A plate-shaped base body having a sacrificial side; and at least one or more energy directors arranged on the sacrificial side, wherein the energy director is generally constructed as a quadrangular prism with a triangular prism molded on it. The base surface of the quadrangular prism is constructed as an isosceles trapezoid and forms the first portion of the first end wall of the energy conductor. Another boundary surface, congruent to and parallel to the base surface, is the top surface of the first portion of the second end wall of the energy conductor. The remaining boundary surfaces form a rectangular first bottom wall, a rectangular top wall parallel to the first bottom wall, and two rectangular first portions of the first and second side walls of the energy conductor that are inclined relative to the base body within the region of the base body. The base surface of the triangular prism is constructed as an isosceles triangle and forms the second portion of the first end wall of the energy guide, wherein another boundary surface, congruent and parallel to the base surface, is the top surface of the second portion of the second end wall of the energy guide, and wherein the remaining boundary surfaces form a rectangular second bottom wall in the region of the top wall of the quadrilateral prism and two rectangular second portions of the first and second side walls that are inclined relative to the base body.

[0019] In the context of this invention, cable is understood to mean one or more cables or cable harnesses, or one or more fluid lines, specifically in a vehicle.

[0020] In existing fastening devices or cable clamps (2K wiring clamps), the corresponding sacrificial plate is constructed to be flat. Furthermore, the corresponding energy director of the sacrificial plate has an isosceles or equilateral triangular shape in cross-section.

[0021] The inventors of this invention have discovered that such flat or straight sacrificial plates and / or energy conductors, which are in the form of isosceles or equilateral triangles in cross-section, require a high degree of precision during assembly in order to securely and reliably connect cables to fasteners, which often results in inadequate connections due to insufficient tolerances.

[0022] The sacrificial plate is fused together by plastic welding, specifically by ultrasonic welding, to connect the energy director and the sacrificial plate to the cable to be fastened or to the corresponding portion of such cable. In the prior art, such energy directors are constructed in the form of isosceles or equilateral triangles, which have a molten portion in cross-section. This molten portion, due to its large volume, requires a relatively high energy input to completely melt it and thus form a strong connection between the cable clamp and the cable.

[0023] In the sacrificial plate according to the invention, the energy guide is generally constructed as a quadrangular prism, on which a triangular prism is molded.

[0024] In this way, the energy director has two distinct molten portions in cross-section; however, these two molten portions have a smaller volume or lower material accumulation. This makes it easier to melt the sacrificial plate according to the invention, specifically its energy director.

[0025] Furthermore, precise parallelism is not required between the body to be fastened and the sacrificial plate because, compared to a single molten section with an energy director known in the prior art, greater parallelism can be achieved by more easily inputting energy into the smaller volume of the two molten sections, thus creating a safer and more reliable connection.

[0026] This means that, using known energy directors, these energy directors are melted until the region with the maximum volume is reached. Typically, the energy director is only partially melted, and there is unmelted or incompletely melted material from the energy director, which cannot then be used to connect the fastener to the corresponding cable.

[0027] In addition, the cables to be received and the corresponding energy directors must be arranged in perfect parallel alignment with each other.

[0028] However, according to the present invention, it is assumed that the energy guide deviates from the shape of an isosceles or equilateral triangle, or does not have such a shape in the cross section, so that by providing quadrilateral and trilateral prisms in the cross section, two regions with smaller material accumulation are formed, which can be melted more easily.

[0029] Therefore, the energy director can be completely melted in both molten regions in a simple and reliable manner, resulting in a more uniform formation of the corresponding connection area for attaching to the cable. In this way, it is also unnecessary to arrange the sacrificial plate and the receiving cable specifically parallel to each other, as the sacrificial plate and the specific energy director compensate for any inaccuracies or non-parallelism.

[0030] Specifically, the sacrificial plate is part of a fastening device manufactured using a two-component injection molding process. The energy guide (first component) according to the invention compensates for the defects of the entire fastening device (second component), eliminating the need for stringent manufacturing tolerances.

[0031] Furthermore, the sacrificial plate according to the invention can be replaced in a simple manner so that the fastening device or the adhesion of the sacrificial plate can be adapted to different conductive materials (e.g., PA12, PA6, TPE, etc.).

[0032] One or more power directors may include one or more interruptions in the longitudinal direction, such that the power director is segmented in form.

[0033] Several advantages are achieved due to the optimization or modification of the volume or shape of the energy director according to the present invention. Due to the modified volume, when the energy director is welded to a cable or conduit to be received, the same or lower amount of energy input is achieved compared to the prior art. Furthermore, more melt is generated or formed, resulting in a better connection during welding.

[0034] This is because interrupting or segmenting the energy director will not lead to excessive welding in the interrupted area. This means that excessive energy input or excessive molten power at the center of the energy director can be safely and reliably prevented from melting and damaging the pipe itself.

[0035] An interruption may preferably be located at the center of the energy director.

[0036] Two, three, four, five, six or more energy directors can be provided, arranged in parallel with each other.

[0037] The sacrificial side of the energy director is preferably curved, wherein the curvature approximately corresponds to the curvature of the cross-section of the component to be received, such that the tip of the energy director is oriented toward the center of the cross-section of the cable to be received.

[0038] Alternatively, it may be assumed that the sacrificial plate is constructed to be flat.

[0039] The first rectangular portion of the first and second sidewalls of the energy guide, which are inclined relative to the base body, may be inclined relative to the plate-like base body, or conversely, at an angle that is flatter than the second rectangular portion of the first and second sidewalls that are inclined relative to the base body.

[0040] The sacrificial plate can preferably be made of PA12, PA6, or TPE. Specifically, it is assumed that the material of the sacrificial plate is correspondingly suitable for the material of the cable or component to be received, so that a safe and reliable connection can be achieved by means of welding, specifically by means of ultrasonic welding.

[0041] Furthermore, at least one edge region of the sacrificial plate may have a retaining profile for receiving in an undercut manner in a recess in a corresponding construction of the fastening device.

[0042] By providing this retaining profile, the sacrificial plate can be attached to the corresponding fastener in a non-releasable manner during or even after manufacturing.

[0043] In this way, the corresponding fastening device can be used immediately in the pre-assembled position without further working steps, such as inserting the sacrificial plate into the fastening device before assembly.

[0044] Therefore, due to the above-mentioned technical features, the sacrificial plate according to the present invention provides an alternative to the sacrificial plate known from the prior art.

[0045] In addition, the sacrificial plate can be easily replaced to accommodate cables made of different materials.

[0046] Furthermore, according to the present invention, a fastening device, specifically a cable clamp, is provided for fastening a first component to a second component, specifically for fastening a cable to a carrier component of a motor vehicle, preferably utilizing the aforementioned sacrificial plate. The sacrificial plate includes: The fastening body has a recess for receiving a sacrificial plate for plastic welding; and a sacrificial plate disposed in the recess and capable of being welded by means of plastic welding, specifically by means of ultrasonic waves, wherein... The sacrificial plate is connected to the fastening body in a non-releasable manner in the pre-assembled position by means of form fit and / or force fit and / or friction fit.

[0047] Therefore, the fastening device according to the invention has the following advantages: the sacrificial plate is connected to the fastening body of the fastening device in a non-releasable manner, specifically in a pre-assembled position during manufacturing.

[0048] The advantages of the fastening device according to the invention correspond similarly to the aforementioned advantages of the sacrificial plate according to the invention.

[0049] The sacrificial plate may include a retaining profile along at least one lateral edge region, which may be received in a shape-fitting manner in the undercut region of the corresponding construction of the recess.

[0050] In this way, a non-releasable, loss-proof connection is ensured between the fastening body and the sacrificial plate. Additionally and / or alternatively, the sacrificial plate may be connected to the fastening body by means of a force-fit and / or friction-fit connection.

[0051] The fastening body can preferably be made of PA66. The following describes some advantageous implementations of the fastening device.

[0052] The fastening body of the fastening device can be made of standard PA6 or PA6.6, and the sacrificial plate can be made of PA12. Therefore, according to one embodiment, it is preferably assumed that the sacrificial plate is made of a material of higher quality than the original sacrificial plate. Furthermore, the sacrificial plate can preferably be made of the same material as the conduit to be received in the fastening device. This configuration of the fastening device is particularly suitable for receiving cables or conduits made of PA12. This means that the material of the sacrificial plate can be configured to match the material of the cable or conduit to be received, thereby ensuring a strong and reliable connection between the fastening body and the cable or conduit to be received.

[0053] The fastening device may also be alternatively constructed as a single component.

[0054] The fastening body, including the fastening unit and the sacrificial plate, can then be integrally made of PP (e.g., PPGF30) containing glass fiber content. This construction of the fastening device is particularly suitable for receiving cables or conduits made of TPV.

[0055] Then, the fastening body, including the fastening body and the sacrificial plate, can be made entirely of PE. This construction of the fastening device is particularly suitable for receiving cables or pipes made of PE.

[0056] In cases of adhesion and / or stability issues with PE pipes, the fastening device can also be constructed as a two-part component, wherein the fastening body is then made of PP or PA6, and the sacrificial plate is made of PP, or, if necessary, glass fiber, such as PPGF30.

[0057] Then, the fastening body, including the fastening body and the sacrificial plate, can be made entirely of PA6. This construction of the fastening device is particularly suitable for receiving cables or pipes made of PA6.

[0058] The fastening body, including the fastening unit and the sacrificial plate, can then be made entirely of POM. This construction of the fastening device is particularly suitable for receiving cables or pipes made of POM.

[0059] In the event of adhesion and / or stability issues with POM pipes, the fastening device can also be constructed as a two-part component, wherein the fastening body is then made of POM or PA6, and the sacrificial plate is made of TPU.

[0060] The fastening body may include: at least one fastening portion for connection to the second component, specifically a cable; and a receiving portion for connection to the first component, specifically a carrier component of a motor vehicle.

[0061] Furthermore, the fastening body has two or more fastening parts, wherein a portion of a sacrificial plate is arranged in the region of each fastening part, and at least two portions of the sacrificial plate can be connected to each other via a sacrificial plate connecting portion.

[0062] In this way, the fastening device is easy to manufacture and allows one or more sacrificial plates to be non-releasably connected to the corresponding fastening body of the fastening device.

[0063] Advantageously, the fastening device can be manufactured from two different plastics using a two-component injection molding process.

[0064] In this way, a fastening device comprising a fastening body and a sacrificial plate can be easily manufactured, such that the sacrificial plate is connected to the fastening body in a non-releasable manner.

[0065] Furthermore, according to the present invention, a fastening method using the aforementioned fastening device, specifically a cable clamp, is provided for fastening a first component to a second component, specifically fastening a cable to a carrier component of a motor vehicle. The method includes the following steps: The fastening device is provided with at least one sacrificial plate, which is non-releasablely attached to the fastening device in a pre-assembled position. Insert the cable into the fastening part of the fastening device, and Using plastic welding, specifically ultrasonic waves, cables are connected to the fastening parts via a sacrificial plate.

[0066] The advantages of the method according to the invention correspond similarly to the aforementioned advantages based on the sacrificial plate according to the invention and the fastening device according to the invention.

[0067] The sacrificial plate, fastening device, and corresponding method will now be described in more detail based on the exemplary embodiments shown in the accompanying drawings. Attached Figure Description

[0068] Figure 1 A schematic perspective view of the fastening device according to the present invention, the fastening device having two fastening portions for receiving corresponding cables, Figure 2 A schematic perspective detail drawing of the sacrificial plate and fastening portion according to a first exemplary embodiment. Figure 3 A schematic perspective detail drawing of the sacrificial plate and fastening parts according to the second embodiment. Figure 4A schematic perspective detail drawing of the sacrificial plate and fastening parts according to the third embodiment. Figure 5 A schematic perspective view of the fastening device of the present invention according to a third exemplary embodiment shows that the fastening device has two fastening portions for receiving corresponding cables. Figure 6 According to another schematic perspective view of the fastening device of the present invention according to a third exemplary embodiment, the fastening device has two fastening portions for receiving corresponding cables. Figure 7 Another schematic perspective view of the fastening device of the present invention according to a fourth exemplary embodiment shows that the fastening device has two fastening portions for receiving corresponding cables. Figure 8 A schematic side view of a fastening device according to the invention, based on an exemplary embodiment, shows that the fastening device has a fastening portion for receiving a corresponding cable. Figure 9 A schematic diagram of a known sacrificial plate energy director in the prior art. Figure 10 A schematic perspective view of the energy guide according to the present invention; and Figure 11 A comparison between various sacrificial plates known in the prior art, a sacrificial plate known in the prior art, and a sacrificial plate according to the present invention. Detailed Implementation

[0069] In the following description, the fastening device 1 according to the invention, having the sacrificial plate 2 according to the invention, is described in more detail. Figure 1 and Figure 2 ).

[0070] The fastening device 1 is configured as a cable clamp for fastening the first component to the second component, specifically for fastening the cable to the carrier component of the motor vehicle.

[0071] The fastening device 1 includes a generally T-shaped fastening device body 3 according to this exemplary embodiment.

[0072] Furthermore, the fastening body 3 includes a receiving portion 4 via which the fastening body 3 can be connected to the carrier component. According to this exemplary embodiment, the receiving portion 4 is configured as a bolt slot. However, the receiving portion 4 may also be configured for connection in the form of any other fastening member, such as a locking, threaded connection, or other constructed connection.

[0073] According to this exemplary embodiment, the fastening device 1 is configured to receive two cables and accordingly includes two semi-shell or annular fastening portions 5.

[0074] A corresponding recess 6 for receiving the sacrificial plate 2 is arranged in the fastening part 5.

[0075] The two recesses 6 are connected to each other via a melt channel 7, so that they can be manufactured or formed in a single processing step during the manufacture of the fastening device 1 by means of a two-component injection molding method.

[0076] The fastening body 3 is preferably made of PA 66.

[0077] The following describes in further detail the multiple sacrificial plates 2 and the single sacrificial plate 2 ( Figures 1 to 5 ).

[0078] The sacrificial plate 2 includes a generally plate-shaped base body 8 having a sacrificial side 9.

[0079] The sacrificial side 9 is configured to be bent in the direction of the cable to be received, wherein the curvature of the sacrificial side 9 approximately corresponds to the curvature of the component or cable to be received.

[0080] Multiple energy directors 10 are arranged on the sacrificial side 9.

[0081] Each of these energy directors 10 is generally constructed as a quadrangular prism 11, on which a triangular prism 12 is molded.

[0082] The base surface of the quadrangular prism 11 is formed into an isosceles trapezoid and forms the first part 13 of the first end wall 27 of the energy guide 10.

[0083] Another boundary surface that is congruent to and parallel to the base surface is the top surface of the first portion 14 that forms the second end wall 28 of the energy guide 10.

[0084] The remaining boundary surfaces are formed in the region of the base body 8 by a rectangular first bottom wall 15, a rectangular top wall 16 parallel to the bottom wall, and two rectangular first portions 17 and 18 of the first side wall 29 and the second side wall 30 of the energy guide that are inclined relative to the base body 8.

[0085] The base surface of the triangular prism 12 is constructed as an isosceles triangle and forms the second part 19 of the first end wall 27 of the energy director 10, wherein another boundary surface congruent to and parallel to the base surface is the top surface of the second part 20 of the second end wall 28 of the energy director 10.

[0086] The remaining boundary surfaces are formed in the region of the top wall 16 of the quadrangular prism 11, which is a rectangular second bottom wall 21, and the first side wall 29 and the second side wall 30 are two rectangular second parts 22 and 23 that are inclined relative to the base body 8.

[0087] The first rectangular first portions 17 and 18 of the first sidewall 29 and the second sidewall 30 of the energy guide 10, which are inclined relative to the base body 8, are inclined at a flatter angle relative to the plate-shaped base body 8 than the second rectangular second portions 22 and 23 of the first sidewall 29 and the second sidewall 30, which are inclined relative to the base body 8.

[0088] A retaining profile 24, which is approximately triangular in cross-section, is provided on the edge region of the sacrificial plate 2. This retaining profile 24 is used to receive a recess 25 of a corresponding construction for connection or attachment to the fastening device 1.

[0089] In addition, the fastening body 3 includes a molten channel recess 26, through which two recesses 6 for receiving the sacrificial plate 2 are connected to each other.

[0090] Energy directors known from existing technology have an isosceles or equilateral triangular shape in cross-section. Figure 3 ).

[0091] Such energy directors include areas or sections with high volume or greater material accumulation, which correspondingly requires significantly higher energy input to fully melt it. However, in practice, this is not always safe and reliable, leading to unreliable connections between the cable and the fastening device.

[0092] According to the invention, the energy director 10 or the sacrificial plate 2 having a corresponding energy director 10 is constructed as a quadrilateral prism 11 and a trilateral prism 12 molded on the quadrilateral prism, thereby creating two melting ranges with lower material accumulation. These can be melted completely and reliably in a more convenient manner, and specifically with lower energy input. Therefore, this results in a safer and more reliable connection.

[0093] In known energy directors, most of them melt until a high volumetric melting range is reached. However, energy directors typically only partially melt, leaving unmelted material behind. This means that the base body 8 of the energy director 10 of the sacrificial plate 2 and the receiving component must be arranged very flat and parallel to each other.

[0094] In contrast, according to the present invention, the energy director 10 can be melted more easily due to the two different melting ranges in the regions of the quadrilateral prism 11 and the trilateral prism 12, resulting in lower material accumulation. Therefore, welding energy can be used more efficiently to melt all the material of the energy director 10, which also leads to a more uniform weld surface.

[0095] In this way, the base body 8 of the sacrificial plate 2 and the energy guide 10 compensate for the corresponding defects.

[0096] In the following description, alternative exemplary embodiments of the sacrificial plate 2 according to the invention will be described with reference to the second, third, and fourth exemplary embodiments. Unless otherwise stated, these exemplary embodiments have the same characteristics as the sacrificial plate according to the first exemplary embodiment ( Figures 3 to 8 They share the same technical features.

[0097] One or more power directors 10 may include one or more interruptions in the longitudinal direction, such that the power director 10 is segmented in form.

[0098] An interruption may preferably be located at the center of the energy director. Figures 4 to 7 ).

[0099] Two or three can be provided arranged in parallel to each other. Figure 2 and Figure 7 ) or four or five ( Figures 3 to 5 and Figure 8 (or six or more energy directors.)

[0100] exist Figure 9 The image shows an energy director based on existing technology. Figure 10 The diagram shows an energy director 10 according to the present invention. The energy director according to the present invention can generally have the same volume as energy directors known in the prior art.

[0101] In the tip region (below the third dashed line), both energy directors have a first low-volume region where melting requires very little energy.

[0102] From the energy guides known in existing technology ( Figure 9 The second region (between the second and third dashed lines) has a large volume and therefore requires a high energy input for melting.

[0103] In contrast to the second region, the energy director according to the invention includes a second region (between the second and third dashed lines) and a third region (above the first dashed line). Compared to the second region of prior art energy directors, the second and third regions of the energy director 10 according to the invention each have a lower volume and average volume, and therefore require less energy for melting.

[0104] Figure 11 The diagram also schematically illustrates this correlation during welding. The energy director, as known in the prior art, melts until it reaches the second high-volume region. In this second region, the energy director only partially melts or does not completely melt. Therefore, unmelted material remains. This necessitates the fact that the energy director, as known in the prior art, must be constructed to be flat.

[0105] The energy guide 10 according to the invention is lighter due to its smaller size. The introduced welding energy melts more material. This results in a more uniform weld zone. Furthermore, it has the advantage of compensating for defects between the sacrificial plate and the object to be received.

[0106] Furthermore, according to the present invention, a fastening method using the aforementioned fastening device, specifically a cable clamp, is provided for fastening a first component to a second component, specifically fastening a cable to a carrier component of a motor vehicle. The method includes the following steps: The fastening device is provided with at least one sacrificial plate, which is non-releasablely attached to the fastening device in a pre-assembled position. Insert the cable into the fastening part of the fastening device, and Using plastic welding, specifically ultrasonic waves, cables are connected to the fastening parts via a sacrificial plate.

[0107] List of reference numerals 1 Fastening device 2 Sacrificial Boards 3 Fastening body 4 Receiving Section 5 Fastening parts 6 recesses 7 Melting Channels 8 basic body 9 Sacrificial Side 10 Energy Directors 11 Quadrilateral Prisms 12 triangular prisms 13. First part, first end wall 14. First part, second end wall 15 First bottom wall 16 top walls 17. First Part, First Side Wall 18. First section, second sidewall 19 Part Two, First End Wall 20 Part 2, Second End Wall 21 Second bottom wall 22 Part Two, First Side Wall 23 Part Two, Second Side Wall 24. Maintain the outline 25 concavities 26 Melt channel recess 27 First end wall 28 Second end wall 29 First sidewall 30 Second sidewall

Claims

1. A sacrificial plate for plastic welding, specifically for a fastening device for fastening a first component to a second component, specifically for fastening a cable to a carrier component, said sacrificial plate comprising: A plate-shaped base body, the plate-shaped base body having a sacrificial side, and At least one or more energy directors are arranged on the sacrificial side, wherein the energy director is generally constructed as a quadrangular prism, and a triangular prism is molded on the quadrangular prism. The base surface of the quadrangular prism is constructed as an isosceles trapezoid and forms a first portion of the first end wall of the energy director, wherein another boundary surface congruent to and parallel to the base surface is the top surface forming the first portion of the second end wall of the energy director, and wherein the remaining boundary surfaces form a rectangular first bottom wall, a rectangular top wall parallel to the first bottom wall, and two rectangular first portions of the first and second side walls of the energy director that are inclined relative to the base body in the region of the base body, and wherein... The base surface of the triangular prism is constructed as an isosceles triangle and forms the second portion of the first end wall of the energy director, wherein another boundary surface congruent to and parallel to the base surface is the top surface forming the second portion of the second end wall of the energy director, and wherein the remaining boundary surfaces form two rectangular second portions of the first side wall and the second side wall, which are inclined relative to the base body, in the region of the top wall of the quadrilateral prism.

2. The sacrificial plate according to claim 1, Its features are, The first rectangular portions of the first and second sidewalls of the energy guide, which are inclined relative to the base body, are inclined at a flatter angle relative to the plate-like base body than the second rectangular portions of the first and second sidewalls, which are inclined relative to the base body.

3. The sacrificial plate according to claim 1 or 2, Its features are, The one or more energy directors include one or more interruptions in the longitudinal direction, such that the energy directors are segmented in form.

4. The sacrificial plate according to any one of claims 1 to 3, Its features are, The base body is curved in form, with the curvature roughly corresponding to the curvature of the cross-section of the component to be received, such that the tip of the energy director is oriented toward the center of the cross-section of the cable to be received.

5. The sacrificial plate according to any one of claims 1 to 4, Its features are, On at least one edge region of the sacrificial plate, there is a retaining profile for receiving in an undercut within a recess in a corresponding construction of the fastening device.

6. A fastening device, specifically a cable clamp, for fastening a first component to a second component, specifically a cable on a carrier component of a motor vehicle, preferably comprising a sacrificial plate according to any one of claims 1 to 4, the fastening device comprising: Fastening body, the fastening body having a recess for receiving a sacrificial plate for plastic welding, and A sacrificial plate, arranged in the recess and capable of being welded by means of plastic welding, specifically by means of ultrasonic welding, wherein... The sacrificial plate is connected to the fastening body in a non-releasable manner in the pre-assembled position by means of form fit and / or force fit and / or friction fit.

7. The fastening device according to claim 6, Its features are, The sacrificial plate includes a retaining profile along at least one lateral edge region, the retaining profile being received in a shape-fitting manner in the undercut region of the corresponding construction of the recess.

8. The fastening device according to claim 6 or 7, Its features are, The fastening body includes: at least one fastening portion for connection to the second component, specifically a cable; and a receiving portion for connection to the first component, specifically a carrier component.

9. The fastening device according to claim 8, Its features are, Two or more fastening portions are provided, wherein a portion of the sacrificial plate is arranged in the region of each fastening portion, wherein at least two portions of the sacrificial plate are connected to each other via a molten channel (sacrificial plate connecting portion).

10. A method for fastening, specifically a cable clamp, using a fastening device according to any one of claims 5 to 9, for fastening a first component to a second component, specifically fastening a cable to a carrier component of a motor vehicle, the method comprising the steps of: At least one sacrificial plate is provided for the fastening device, the sacrificial plate being non-releasablely attached to the fastening device in a pre-assembled position. Insert the cable into the fastening part of the fastening device, and The cable is connected to the fastening portion via the sacrificial plate by means of plastic welding, specifically by means of ultrasound.

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