Connecting mechanism and method for producing connecting mechanism
By designing a connecting mechanism with reduced spring characteristics and deformed structure, the problem of excessive load when the member to be connected is expanded is solved, and the safety and durability of the connection are improved.
Patent Information
- Application Number
- CN202380056727.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-11-29
- Filing Date
- 2023-07-11
- Publication Date
- 2025-03-14
AI Technical Summary
The existing connecting mechanism is susceptible to huge loads when the member to be connected is expanded, resulting in disengagement or unreliable connection.
A connecting mechanism is designed, including an operating area, an elastic area and an installation area. The elastic area is located between the operating area and the installation area. It has reduced spring characteristics and a deformation structure, and can withstand bending and torsion in the longitudinal direction, reducing the load on the connecting mechanism and the member to be connected.
By reducing the load caused by expansion, the operating safety and durability of the connecting mechanism are improved, dynamic load is reduced, and the reliability of the connection is ensured.
Smart Images
Figure CN119630893A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a connecting mechanism, a battery device, a fuel cell and a method for producing the connecting mechanism. Background Art
[0002] Connecting mechanisms are already known from the prior art. They are used to connect different components to one another, in particular reversibly. However, it is problematic that if the components to be connected expand during operation, as can be the case, for example, in fuel cells or in battery devices, significant loads are applied to the connecting mechanism or the components to be connected, or the connecting mechanism may become detached. Summary of the invention
[0003] It is therefore an object of the present invention to provide a connection which allows even high dynamic or static expansions to be reliably absorbed and / or reduces the resulting loads on the connection or on the components to be connected.
[0004] This object is achieved by a connection according to claim 1, by a battery arrangement and / or a fuel cell according to claim 14 and by a method for producing a connection according to claim 15. Further advantages, features and embodiments emerge from the dependent claims, the description and the drawings.
[0005] According to the invention, the connecting means is in particular a screw or a bolt. Advantageously, the connecting means comprises: an operating region, in particular a head; an elastic region; and preferably a mounting region, wherein the connecting means extends in the longitudinal direction, wherein the radial direction is in particular perpendicular to the longitudinal direction, wherein the elastic region can be located between the operating region and the mounting region in the longitudinal direction, wherein the mounting region has a thread, in particular an internal thread, wherein advantageously or optionally, the elastic region and / or the mounting region is or can be hollow inside, and / or wherein the elastic region has a smaller elasticity than the mounting region and / or than the operating region due to its geometry. The connecting means is in particular used to connect different components to each other, in particular to each other in a force-fitting manner. The force-fitting connection in particular relates to a transverse force, advantageously in a radial direction or parallel to the direction. In order to be able to establish or transmit a transverse force, in particular perpendicular to the longitudinal direction, between the components to be connected, the connecting means is advantageously configured as a force-fitting connecting means. The connecting means in particular has an operating region. The operating region is advantageously used to be able to apply an installation torque, in particular a form-fitting manner, to the connecting means. For this purpose, the operating area can have an operating surface, in particular an operating surface in the form of an outer hexagonal edge, an inner hexagonal edge, an outer hexagonal circle or an inner hexagonal circle, multiple teeth and / or multiple wheels (Mehrrund), respectively, advantageously as an inner operating part and / or an outer operating part. Suitably, the normal of the operating surface points to the radial direction. Here, the operating surface can be a part of the head, and the head can constitute the operating area. In other words, the operating area can be formed by the head or include the head. Here, suitably, the operating area is configured so that the operating area constitutes the distal end of the connecting mechanism in the longitudinal direction. The longitudinal direction is also particularly the following direction, in which the connecting mechanism has its largest main dimension. For example, the longitudinal direction can therefore or alternatively preferably be the following direction, in which the length of the connecting mechanism is measured. The center of gravity of the connecting mechanism, the elastic region and / or the mounting region can be located in the longitudinal direction. One or the radial direction extends in particular perpendicular to the longitudinal direction. Advantageously, the longitudinal direction, the radial direction and the circumferential direction constitute a cylindrical coordinate system with each other. In addition to the operating area, the connecting mechanism also has an elastic region and / or a mounting region. The mounting region of the connection means has a thread in order to thereby form a connection with another thread, in particular a nut thread. The thread can advantageously be configured as an internal thread in order to thereby achieve a particularly space-saving configuration. Alternatively or additionally preferably, the thread of the mounting region can also be an external thread. This enables particularly simple production. The thread itself can in turn be a metric or imperial thread. Preferably, the mounting region in the longitudinal direction is delimited by the distal end of the thread in the longitudinal direction. Advantageously, the mounting region constitutes the distal end of the connection means in the longitudinal direction. The mounting region having a thread and / or constituted by a thread can delimit the connection means in the longitudinal direction.In order to reduce the risk of injury during installation, the installation area can be delimited by a cylindrical surface pointing outward in the radial direction and / or have such a cylindrical surface. The elastic area is located between the operating area and the installation area when viewed in the extension direction. It is advantageous that the length of the elastic area in the longitudinal direction is greater than the length of the operating area and / or the installation area in the longitudinal direction. Here, the length of all areas in the longitudinal direction is particularly measured. Suitably, the length of the elastic area in the longitudinal direction is greater than the sum of the lengths of the operating area and the installation area. Advantageously, at least 30%, preferably at least 60% and more preferably at least 70% of the length of the connecting mechanism in the longitudinal direction is formed by the elastic area. The elastic area and / or the installation area are particularly hollow inside, so that simple installation and / or gas penetration and / or elasticity reduction can be achieved and / or provided. The elastic area is formed due to its geometry so that the elastic area has less elasticity than the installation area, and / or wherein the elastic area has a deformation structure and / or a rigidity reduction structure in the form of a deformation structure. In other words, the geometry of the elastic region is implemented in particular so that a smaller elasticity is generated in the mounting region compared to the elasticity in the mounting region and / or the operating region. The elasticity itself is in particular the gradient of the spring rigidity or force-travel diagram. Here, the elasticity in the longitudinal direction is decisive for the elasticity. In particular, the force-travel diagram or spring rigidity is not dedimensionalized by geometric characteristic variables. In other words, the elasticity or spring rigidity is therefore not determined according to the gradient of the stress-strain diagram, but is determined according to the force actually applied to the elastic region compared to the synthetic displacement stroke or synthetic deformation. The force-travel diagram is therefore the following force, which must be applied in the longitudinal direction in order to separate the mounting region from the operating region, wherein the synthetic displacement stroke of the operating region in the longitudinal direction relative to the mounting region is recorded at the same time. Advantageously, the elastic region and the mounting region and / or the elastic region and the operating region are made of the same material and / or in one piece. It is thus possible to achieve particularly good mechanical retainability. The lower elasticity of the elastic region (due to the geometry in the elastic region and / or due to the rigidity-reducing structure) can reduce the loads (caused by the increased and / or static expansion of the components to be connected). In this way, in particular the loads acting on the connecting means and / or on the components to be tensioned or already tensioned can be reduced, so that the operational safety and durability of the connecting means can be increased. In addition, a further advantage of this design is that in particular the dynamic loads acting on the connecting means are also reduced. The connecting means according to the invention can in particular also be a fastening means and / or vice versa.
[0006] Advantageously, the elastic region has one or more deformation structures which are subjected to bending and / or torsion when the actuating region is displaced relative to the mounting region in the longitudinal direction. The deformation structures are in particular spirals or beam sections which can be realized, for example, by introducing recesses and / or through-holes or other rigidity-reducing structures in the elastic region, in particular in the radial direction. The deformation structures are therefore in particular not recesses but material regions which are subjected to mechanical loads due to a change in length in the longitudinal direction of the elastic region, in particular due to a displacement of the mounting region relative to the actuating region in the longitudinal direction. The mechanical loads of the deformation structures are in particular or in particular comprise bending loads and / or torsion loads. The load types are in particular the dominant load types, and thus in particular the load types which cause at least 30%, preferably at least 50% and particularly preferably at least 70% of the equivalent stress, in particular when applying the (von Mises) configuration change assumption and / or the (Rankine) principal normal stress assumption. In this way, in particular, the achievable reversible degree of deformation of the deformation structure can be increased, so that the elasticity of the final elastic region can be reduced. In other words, the spring stiffness of the elastic region, which can be a synonym for elasticity, is reduced by using the deformation structure, which is subjected to bending and / or torsion when the actuating region is displaced in the longitudinal direction relative to the mounting region. In this way, in particular, a particularly advantageous design of the elastic region can be achieved.
[0007] Advantageously, the elastic region is designed in such a way that it has a decreasing spring characteristic. In other words, the elasticity or spring stiffness of the elastic region (with respect to the displacement of the actuating region relative to the mounting region in the longitudinal direction) can be realized in such a way that the elasticity decreases or falls as the spacing of the actuating region relative to the mounting region in the longitudinal direction increases. It can thereby be achieved, in particular, that the dynamic loads can be further reduced when the expansion of the component to be connected increases, or that the (static) loads resulting therefrom do not increase as strongly. Advantageously, the spring characteristic is decreasing in the elastic region. In other words, a decreasing spring characteristic is thus achieved, in particular “before” an irreversible deformation occurs. In this way, in particular, a permanent load relief and / or mechanical overload of the component to be connected and / or the connecting mechanism can be minimized and / or reduced.
[0008] Advantageously, the elastic region has one or more rigidity-reducing structures, in particular depressions and / or perforations, wherein the rigidity-reducing structures form or delimit the deformation structure. In other words, in the elastic region, in particular in the radial direction, depressions and / or further rigidity-reducing structures can be formed, which respectively border the deformation structure. In particular, the depressions can be designed in this case so that a fluid can pass through them from the surroundings via the depressions or depressions or perforations into the internal hollow region or the internal hollow elastic region in general. In other words, one or more perforations can be designed so that they extend from the outside until they enter the internal hollow region of the elastic region.
[0009] The or one internally hollow region of the connection means can in particular be formed by a central recess which extends in the longitudinal direction from the mounting region into the elastic region or even into the actuating region. Thus, by providing such a central recess, a fluid flow can also be achieved in the longitudinal direction between the individual regions of the connection means.
[0010] Advantageously, the rigidity-reducing structure, in particular in the form of one or more recesses, connects an outer wall of the elastic region to an inner wall of the elastic region. The outer wall of the elastic region borders the elastic region outwardly, in particular in a positive radial direction, while the inner wall borders the elastic region inwardly in a longitudinal direction. In this case, the inner wall can in particular border the central recess and / or partially form it together. As a result, a fluid flow from the surroundings into the inner hollow region of the elastic region can be achieved in a particularly efficient and direct manner (as already explained).
[0011] Advantageously, at least one rigidity reducing structure, in particular a rigidity reducing structure in the form of a recess, is designed so that its projection in the longitudinal direction overlaps itself. In other words, at least one recess can be designed so that when the recess is projected onto a plane perpendicular to the longitudinal direction, the projection itself is closed and can in particular form a ring around the longitudinal direction. In this way, a particularly large reduction in elasticity can be achieved, so that a particularly advantageous elastic region is produced. However, advantageously, the ends of the recesses that form the projections that overlap themselves or are closed themselves are located at different heights in the longitudinal direction. In other words, the recesses that can in particular be the through-holes are closed only in the projection and are not closed when the recesses are viewed taking into account the extension in the longitudinal direction. In this way, a severe weakening of the connection can in particular be prevented.
[0012] Advantageously, the elastic region has one or more helical recesses and / or rigidity reducing structures, in particular through-holes, so that the elastic region has one or more and / or multi-headed deformation structures, which are helical portions. By providing a helical recess and / or rigidity reducing structure, which can in particular be a through-hole, it can be achieved in a particularly efficient manner that the deformation structure withstands torsion. By providing a deformation structure that withstands torsion, a particularly high degree of reversible deformation capability can be provided. By providing a helical deformation structure, it is possible to achieve particularly good torsion resistance. As already explained, it is also possible to provide multiple helices so that there can be a multi-headed deformation structure in the shape of a helix. In other words, the helical multi-headed deformation structure can be formed similarly to a multi-thread thread.
[0013] Advantageously, the deformation structure, in particular the spiral portion, has a material strength in the longitudinal direction and a material strength in the radial direction (which can also be referred to as radial strength), wherein the ratio of material strength to radial strength is in the range of 0.8 to 1.2, preferably in the range of 0.9 to 1.1, and particularly preferably in the range of 0.97 to 1.03. Therefore, the material strength is the average and / or maximum or minimum material strength of the deformation structure measured in the longitudinal direction. The radial strength of the deformation structure is in particular the material strength or material thickness in the radial direction. Advantageously, the ratio of material strength to radial strength is in the range of 0.8 to 1.2. This allows particularly simple production. On the other hand, if the material strength is in the range of 0.9 to 1.1, a particularly advantageous stress distribution can be achieved. On the other hand, if the ratio is in the range of 0.97 to 1.03, an approximately uniform stress distribution can be achieved at all edges.
[0014] Advantageously, at least one recess and / or rigidity reducing structure, preferably a plurality of recesses and / or rigidity reducing structures are in the form of an elongated hole. Preferably, the or at least one, preferably at least a major part, and particularly preferably all of the elongated hole-shaped recesses or rigidity reducing structures are configured as a perforation. In particular, a recess / rigidity reducing structure is considered to be elongated hole-shaped if the dimension of the recess / rigidity reducing structure in its main extension direction is greater than the dimension perpendicular to the main extension direction. In other words, therefore, an elongated hole-shaped recess or elongated hole-shaped perforation can exist when the length in the circumferential direction of the perforation is greater than the length of the perforation in the longitudinal direction. In this case, in particular, the length of the perforation and / or recess in the radial direction is unimportant. In other words, therefore, in particular for the elongated hole form, only the contour left by the recess and / or perforation on the outer wall of the elastic region is decisive. Suitably, the elongated hole-shaped perforation or the elongated hole-shaped recess has a greater extension, in particular in the circumferential direction, than in the longitudinal direction. Advantageously, the extension in the circumferential direction is at least 10%, preferably at least 20% and particularly preferably at least 30% greater than the extension in the longitudinal direction in order to define the elongated hole shape. Advantageously, the distal end region of the elongated hole-shaped passage or the elongated hole-shaped recess is formed by a rounding. This allows the occurrence of material overstress or overstress factors to be reduced.
[0015] Preferably, the projection of the oblong hole-shaped recess or the rigidity-reducing structure in the longitudinal direction forms a closed circle, in particular in the longitudinal direction. In other words, the projection of the oblong hole-shaped recess, which can be a through-hole, is thus formed such that when viewed in the longitudinal direction, the projections overlap to form a complete circle or an inherently closed ring, wherein in particular the center of gravity of the ring lies in the longitudinal direction and / or the ring encompasses the longitudinal direction. In this way, a particularly advantageous reduction in the elasticity of the elastic region can be achieved.
[0016] Preferably, at least one oblong hole-shaped recess and / or rigidity reduction structure has a variable width in the longitudinal direction. Here, the width is in particular the spacing of the wall portions that are opposite in the longitudinal direction. In particular, that is to say, the oblong hole or the oblong hole-shaped recess is oriented so that it extends perpendicularly to the longitudinal direction. In other words, the main extension direction is therefore oriented perpendicularly to the longitudinal direction in the projection along the radial direction. Through the variable width in the longitudinal direction, a defined stress distribution can be achieved in particular. Advantageously, the width of the oblong hole-shaped through-hole or recess decreases toward the center of the recess or through-hole. In other words, the width of the recess can first decrease from the distal end of the through-hole or recess toward the other distal end of the recess and increase again after exceeding the center between the distal ends of the recess. This makes it possible to achieve particularly advantageous mechanical stresses that are expected to occur. In other words, this makes it possible to achieve a particularly stress-matched variation process.
[0017] Advantageously, the deformation structure, in particular the deformation structure arranged between two oblong hole-shaped perforations, has a material strength in the longitudinal direction, in particular a maximum material strength, and a material strength in the radial direction, in particular a maximum material strength, which (as already shown) can be referred to as radial strength, wherein the ratio of material strength to radial strength is in the range of 0.7 to 1.3, preferably in the range of 0.85 to 1.15 and particularly preferably in the range of 0.9 to 1.1. The material strength (as already shown) is in particular the average and / or maximum or minimum material strength of the deformation structure measured in the longitudinal direction. The radial strength of the deformation structure (as also already shown) is in particular the material strength or material thickness in the radial direction. Advantageously, the ratio of material strength to radial strength is in this case in the range of 0.7 to 1.3. This makes it possible to achieve particularly cost-effective production, in particular when the deformation structure is at least partially limited in the longitudinal direction by the oblong hole-shaped perforations. If, on the other hand, the material strength is in the range of 0.85 to 1.15, then particularly low local stress concentrations can be achieved, in particular when the deformation structure is at least partially limited in the longitudinal direction by the oblong hole-shaped perforation. If, on the other hand, the ratio is in the range of 0.9 to 1.1, then a particularly good increase in elasticity can be achieved.
[0018] Advantageously, the ratio of the average height or maximum height of the perforation, in particular the perforation in the form of an oblong hole, in the longitudinal direction to the diameter of the elastic region is in a ratio of 0.045 to 0.125, preferably in a range of 0.055 to 0.0834, particularly preferably in a range of 0.06 to 0.75. Here, the average height or maximum height of the perforation in the longitudinal direction is the width of the perforation in the extension direction, in particular between two walls that are opposite in the longitudinal direction. In contrast, the average height is the average height of the perforation along the longitudinal direction from one distal end to the other distal end. In contrast, the diameter of the elastic region is the diameter of the smallest possible circle that can just enclose the elastic region in a plane perpendicular to the longitudinal direction. Here, if the ratio is in a range of 0.045 to 0.125, a particularly effective elasticity reduction can be achieved thereby. In contrast, if the ratio is in a range of 0.055 to 0.0834, a particularly simple production can be achieved thereby.
[0019] Advantageously, the connecting mechanism is formed in one piece. In particular, the one-piece formation is understood to mean that the materials of the connecting mechanism are connected to each other in a single initial forming process. In other words, although the connecting mechanism can be further processed after the forming process, in particular by separation or segmentation methods such as laser cutting and / or thread cutting and / or milling or turning, other elements are not added to the connecting mechanism, for example, by welding. However, advantageously, only the operating area, the elastic area and the mounting area are formed in one piece with each other. Alternatively or additionally, it is preferred that the connecting mechanism can also be produced by materially bonding other components to each other, in particular by materially bonding the operating area with the elastic area and the mounting area. In addition, in the materially bonded connection, other elements can also be installed on the connecting mechanism, so that the following connecting mechanism is finally produced, wherein the operating area, its elastic area and its mounting area are bonded to each other by materially bonding, but wherein other elements can be fastened to the connecting mechanism in a force-fitting manner and / or a shape-fitting manner and / or a materially bonding manner. Materially bonding is particularly advantageous in terms of production costs. In contrast, in a particularly mechanically advantageous embodiment, the connecting means and / or the actuating region are / is formed in one piece with the elastic region and the mounting region.
[0020] Advantageously, the operating region is hollow, in particular hollow inside. As a result, a fluid flow can flow through the elastic region and / or the mounting region, in particular in the hollow region of the operating region. As a result, the connection mechanism described here can be used particularly advantageously in a fuel cell. In this context, hollow is understood to mean, in particular, that the entire operating region can be hollow in the longitudinal direction.
[0021] Advantageously, the operating area has a gas connection. As a result, a gas flow out of the operating area and / or into the operating area can be realized particularly easily. The gas connection can in particular have or form a gas-tight thread and / or a hose connection.
[0022] Advantageously, there is a central recess which extends in the longitudinal direction from the operating region via the elastic region and can reach the mounting region. Advantageously, the central recess extends from the distal end of the mounting region to the distal end of the operating region. In other words, the central recess can extend in the longitudinal direction through the connecting means, so as to thereby in particular enable a fluid flow through the connecting means. Advantageously, the central recess has a constant diameter in the operating region, the elastic region and / or the mounting region. This allows particularly simple and cost-effective production, which also has mechanically advantageous properties.
[0023] The actuation region expediently has an actuation surface, wherein the actuation surface has a normal in particular in the radial direction. Thus, for mounting the connection, a torque, in particular a form-fitting torque, can be applied to the connection in a simple manner, in particular about the longitudinal direction. The arrangement in which the normal of the actuation surface points in the radial direction makes it possible to achieve particularly advantageous production, which can also be easily operated.
[0024] Advantageously, one or more depressions and / or perforations, in particular depressions and / or perforations formed in the form of spirals and / or slots, are laser cut, thereby resulting in particularly cost-effective and precise production, making it possible to avoid and / or reduce local (unwanted) stress concentrations.
[0025] A further aspect of the invention can relate to a battery arrangement and / or a fuel cell, wherein the battery arrangement or the fuel cell has a connection mechanism as described above and / or below.
[0026] A further aspect of the invention can relate to the use of a connection mechanism as described above and / or below in a battery arrangement or a fuel cell and / or for a battery arrangement or a fuel cell.
[0027] Another aspect of the present invention can relate to a method for producing a connecting mechanism, in particular a connecting mechanism as described above and below. The method comprises in particular the following steps:
[0028] Advantageously providing a blank;
[0029] The operating area, in particular the head, is advantageously formed by shaping;
[0030] Forming, in particular by means of shaping, an in particular hollow mounting region;
[0031] Forming the elastic region, in particular by introducing a rigidity-reducing structure, advantageously in the form of a depression and / or a through-hole, between the operating region and the mounting region in the longitudinal direction.
[0032] The introduction of the rigidity-reducing structure can be carried out in particular by means of a laser, thus for example by laser cutting. The connecting means provided by the method for production can in particular have the features, designs, embodiments and advantages described above and below. In particular, the actuating region and / or the elastic region and / or the mounting region are formed by a shaping method in this case, in order to thereby achieve a particularly mechanically load-bearing and yet cost-effective design of the connecting means. The connecting means can in particular be screws and / or bolts. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Further advantages and features of the invention are apparent from the following description with reference to the accompanying drawings. Individual features of the illustrated embodiments can also be used in other embodiments, unless this is explicitly excluded. The accompanying drawings show:
[0034] Figure 1 A side view showing a connection mechanism having a rigidity reducing structure in the shape of an elongated hole;
[0035] Figure 2 Likewise shown is a connection mechanism having a rigidity-reducing structure as a recess, wherein the width of the rigidity-reducing structure decreases towards the center;
[0036] Figure 3 A sub-view showing a connection mechanism in a fuel cell;
[0037] Figure 4 A plurality of connection mechanisms in a fuel cell are shown;
[0038] Figure 5 side and cross-sectional views showing the connection mechanism; and
[0039] Figure 6 A connection mechanism having a deformed structure of a spiral portion is shown. DETAILED DESCRIPTION
[0040] exist Figure 1 1 shows a connection mechanism 1, which has an operating region 10 in the form of a head. The operating region 10 has a connecting thread for a gas connection. In addition, the connection mechanism 9 also has a mounting region 50, wherein the fastening region 10 and the mounting region 50 constitute end regions of the connection mechanism 1 that are opposite at the distal end in the longitudinal direction L. The elastic region 30 is located between the fastening region 10 and the mounting region 50. Due to its geometry, the elastic region 30 has a smaller elasticity than the mounting region 50 and a smaller elasticity than the operating region 10, and wherein the elastic region 30 has a decreasing spring characteristic. The rigidity characteristics of the elastic region 30 are achieved by a rigidity-reducing structure that is formed as an elongated hole of a through-portion.
[0041] exist Figure 2 Shown in Figure 1 Compared to the similar connection mechanism 1. However, the actuation region 10 has an outer hexagon with an actuation face 12. An internal thread for mounting is present in the mounting region 50 which is hollow inside. The radial direction R points radially from the longitudinal direction L. The deformation structure 32 present in the elastic region 30 is realized such that it has a variable width in the longitudinal direction L, wherein the width decreases towards the center of the recess.
[0042] exist Figure 3A detailed view of the fastening device 1 installed in a fuel cell can be seen in FIG. The operating region 10 with the operating surface 12 in its interior and the elastic region 30 are both provided with a central recess 60, so that an internal hollow region is produced both in the elastic region 30 and in the operating region 10. The rigidity-reducing structure is designed in the form of an elongated hole. The rigidity-reducing structure 34 forms a deformation structure 32, wherein the deformation structure 32 has a radial strength RS in the radial direction R.
[0043] exist Figure 4 2 shows a fuel cell having a plurality of connecting means 1. The connecting means 1 in this case each completely penetrate the fuel cell in the longitudinal direction L.
[0044] exist Figure 5 , a side view is shown in the lower region and a sectional view through the connection 1 is shown in the upper region. The connection 1 extends in the longitudinal direction L. In this case, deformation structures 32 are formed in the elastic region 32, which are connected one after another in the manner of a disc spring. Due to the geometrical design, the elastic region 30 has a decreasing spring characteristic. The radial strength RS in the elastic region can be seen here. Both the mounting region 50 and the elastic region 30 are hollow inside and thus each have a section of a central recess 60. In order to enable the mounting of the connection 1, the mounting region 50 has an internal thread.
[0045] exist Figure 6 . The connecting means 1 has a deformation structure 32, which is a spiral. In other words, the elastic region 30 has a helical depression, which forms the deformation structure 32. The deformation structure 32 has a material strength MS in the longitudinal direction L. Alternatively, it is preferred that instead of a helical depression, a plurality of helical depressions can also be provided, so that one or more multi-start deformation structures in the form of a spiral are generated. The mounting region 50 also has a metric internal thread.
[0046] Reference numerals list
[0047] 1 Connection mechanism
[0048] 10 Operation area, especially the head
[0049] 12 Operation surface
[0050] 30 Elastic Area
[0051] 32 Deformation Structure
[0052] 34 Rigidity reduction structure, recessed parts, especially through-parts
[0053] 50 Installation area
[0054] 60 Central fovea
[0055] L Longitudinal direction
[0056] MS Material Strength
[0057] R Radial direction
[0058] RS Radial Strength
[0059] U Circumferential direction
Claims
1. A connecting mechanism (1), in particular a screw or a bolt, comprising: an operating area (10), in particular a head; an elastic area (30); and a mounting area (50), wherein the connecting mechanism (1) extends in a longitudinal direction (L), wherein the radial direction (R) is in particular perpendicular to the longitudinal direction (L), The elastic region (30) is located between the operating region (10) and the mounting region (50) in the longitudinal direction (L). wherein the mounting area (50) has a thread, in particular an internal thread, The elastic region (30) and / or the mounting region (50) are particularly hollow inside. wherein the elastic region (30) has a rigidity-reducing structure (34), in particular a rigidity-reducing structure in the form of a recess and / or a through-hole, and / or wherein the elastic region (30) has a smaller elasticity than the mounting region (50) and / or a smaller elasticity than the operating region (10) due to its geometry, and / or The elastic region has a decreasing spring characteristic.
2. The connecting mechanism (1) according to claim 1, The elastic region (30) has one or more deformation structures (32) which are subjected to bending and / or torsion when the operating region (10) is displaced relative to the mounting region (50) along the longitudinal direction (L).
3. The connecting mechanism (1) according to any one of the preceding claims, The elastic region (30) has a decreasing spring characteristic.
4. The connecting mechanism (1) according to any one of the preceding claims, wherein the elastic region (30) has one or more rigidity-reducing structures (34), in particular rigidity-reducing structures in the form of depressions (34) and / or perforations, The rigidity reducing structure (34) constitutes the deformation structure (32) or limits the deformation structure.
5. The connecting mechanism (1) according to any one of the preceding claims, wherein at least one rigidity reducing structure (34), in particular a recess, is designed such that its projections in the longitudinal direction (L) coincide with each other.
6. A connecting mechanism (1) according to any one of the above claims, wherein the elastic region (30) has one or more spiral recessed portions (34) and / or a rigidity reducing structure (34), so that the elastic region (30) has one or more and / or multi-headed deformation structures (32), and the one or more and / or multi-headed deformation structures are spiral portions.
7. The connecting device (1) according to any of the preceding claims, in particular according to claim 5 or 6, wherein the deformation structure (32), in particular the spiral, has a material strength (MS) in the longitudinal direction (L) and a radial strength (RS) in the radial direction, The ratio of the material strength (MS) to the radial strength (RS) lies in the range of 0.8 to 1.2, preferably in the range of 0.9 to 1.1, and particularly preferably in the range of 0.97 to 1.
03.
8. A connecting mechanism (1) according to any one of the preceding claims, wherein at least one recess (34) and / or a rigidity reducing structure (34), preferably a plurality of recesses (34) and / or a rigidity reducing structure (34) are in the form of elongated holes.
9. The connecting mechanism (1) according to any one of the preceding claims, The projection of the oblong hole-shaped depression (34) and / or the rigidity-reducing structure (34) in the direction of the longitudinal direction (L) forms a closed circle, in particular around the longitudinal direction (L).
10. The connecting device (1) according to any of the preceding claims, wherein at least one recess (34), in particular in the form of an elongated hole, and / or the rigidity reducing structure (34) has a variable width in the longitudinal direction (L).
11. The connecting device (1) according to any of the preceding claims, in particular according to claim 10, The width of the through-portion and / or at least one through-portion (34) and / or at least one rigidity reducing structure (34) decreases toward the center of the recessed portion (34) and / or the rigidity reducing structure (34).
12. The connection mechanism (1) according to any one of the preceding claims, wherein the connection mechanism is in one piece.
13. A connecting mechanism (1) according to any one of the above claims, wherein there is a central recess (60), which extends in the longitudinal direction (L) from the operating area (10) via the elastic area (30) to the installation area (50), in particular to the distal end of the installation area (50).
14. A battery device or a fuel cell comprising a connection mechanism (1) according to any one of the preceding claims, and / or Use of a connecting device (1) according to any of the preceding claims in and / or for a battery arrangement or a fuel cell.
15. A method for producing a connecting mechanism (1), in particular a connecting mechanism according to any one of claims 1 to 13, comprising the following steps: In particular, providing a blank; forming an operating area (10), in particular a head, in particular by shaping; Forming a hollow mounting area (50), in particular by means of shaping; The elastic region (30) is formed, in particular by introducing a rigidity-reducing structure (34), advantageously in the form of a depression and / or a through-hole, between the operating region (10) and the mounting region (50) in the longitudinal direction (L).