Method for connecting two components, and component arrangement

Abstract

A method for the connection of a first component to a second component includes providing a first component which has a projection with an undercut, and providing a second component which has a cavity. The method also includes introducing a sealing and/or connecting material into the cavity of the second component, and joining the first component and the second component together to form a component arrangement. The projection of the first component projects, in the joined state, into the cavity of the second component.

Claims

1. A method for the connection of a first component to a second component, comprising the steps of: providing a first component which has a projection with an undercut, providing a second component which has a cavity, introducing a sealing and/or connecting material into the cavity of the second component, joining the first component and the second component together to form a component arrangement, wherein the projection of the first component projects, in the joined state, into the cavity of the second component, and the cavity is defined by two lateral projections which: i) project from the second component into a cavity defined by the first component, and ii) surround the projection of the first component.

2. The method as claimed in claim 1, wherein the sealing and/or connecting material is formed as a connecting material for a positively locking and/or non-positively locking connection of the components as an adhesive material.

3. The method as claimed in claim 1, wherein the sealing and/or connecting material is formed as a sealing material for sealing with respect to gaseous and/or liquid media.

4. The method as claimed in claim 1, wherein the sealing and/or connecting material is formed in combination as a connecting material for a positively locking and/or non-positively locking connection of the components and as sealing material.

5. The method as claimed in claim 4, wherein the cavity of the second component has an opening region and a base region, and the opening region is larger than the base region.

6. The method as claimed in claim 5, wherein the projection of the first component is of undercut form in relation to a joining axis which runs substantially parallel to an intended loading direction of the component arrangement in the joined state.

7. The method as claimed in claim 6, wherein the joining axis runs orthogonally with respect to a parting plane which, at least in sections, runs tangentially with respect to the opening region of the cavity of the second component.

8. The method as claimed in claim 7, wherein the projection of the first component has a first width and a second width, in the joined state, the second width is situated closer to the base region of the cavity of the second component than the first width, and the second width is greater than the first width.

9. The method as claimed in claim 8, wherein the sealing and/or connecting material cures to form an elastic or solid sealing and/or connecting element.

10. The method as claimed in claim 9, wherein the projection of the first component is of a thickening, club-like form, and/or is formed into a thickening, club-like form in a deformation step before the joining-together step.

11. The method as claimed in claim 10, wherein an outer wall of the cavity of the second component is deformed during the joining-together step.

12. The method as claimed in claim 11, wherein the first component has an opposing wall which, in the component arrangement, bears against the outer wall and which deforms the outer wall during the joining-together of the first component and second component.

13. The method as claimed in claim 12, wherein the outer wall is deformed such that a cross section of the cavity of the second component is of arcuate form.

14. The method as claimed in claim 1, wherein at least one outer wall of the cavity of the second component is deformed in relation to a state in which the second component is not connected to the first component, and the first component has at least one opposing wall which bears against the at least one outer wall such that the at least one outer wall is deformed.

15. A component arrangement, comprising a first component, which has a projection with an undercut, a second component, which has a cavity and which is connected to the first component, a sealing and/or connecting material which has cured to form a sealing and/or connecting element and which is arranged in the cavity of the second component, wherein the projection of the first component projects into the cavity and is at least partially surrounded by the sealing and/or connecting element, and the cavity is defined by two lateral projections which: i) project from the second component into a cavity defined by the first component, and ii) surround the projection of the first component.

16. The component arrangement as claimed in claim 15, wherein at least one outer wall of the cavity of the second component is deformed in relation to a state in which the second component is not connected to the first component.

17. The component arrangement as claimed in claim 16, wherein the first component has at least one opposing wall which bears against the at least one outer wall such that the at least one outer wall is deformed.

18. The component arrangement as claimed in claim 17, wherein the first component and/or the second component have an overflow chamber in which any of the sealing and/or connecting material that has emerged from the cavity of the second component is collected.

19. A component arrangement, comprising a first component, which has a projection with an undercut, a second component, which has a cavity and which is connected to the first component, a sealing and/or connecting material which has cured to form a sealing and/or connecting element and which is arranged in the cavity of the second component, wherein the projection of the first component projects into the cavity and is at least partially surrounded by the sealing and/or connecting element, at least one outer wall of the cavity is deformed in relation to a state in which the second component is not connected to the first component, and the first component has at least one opposing wall which bears against the at least one outer wall such that the at least one outer wall is deformed.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Other objects, advantages and novel features of the present invention will become apparent from the following detailed description of one or more preferred embodiments when considered in conjunction with FIGS. 1A to 4B, in which:

(2) FIG. 1A is a schematic diagram of a first component of a component arrangement.

(3) FIG. 1B is a schematic diagram of the first component and of a second component of the component arrangement during a manufacturing process.

(4) FIG. 1C is a schematic diagram of the component arrangement in a fully manufactured state.

(5) FIGS. 2 and 3A to 3D are schematic diagrams of component arrangements in a fully manufactured state.

(6) FIGS. 4A and 4B are schematic illustrations of a method for the connection of two components.

DETAILED DESCRIPTION OF THE DRAWINGS

(7) In the exemplary embodiments and figures, identical constituents or constituents of identical action may each be denoted by the same reference designations. The illustrated elements and the proportions thereof with respect one another should basically be regarded as not being to scale. Rather, for an improved illustration and/or for improved understanding, individual elements may be illustrated with exaggeratedly thick or large dimensions.

(8) FIG. 1A schematically shows a first component 2 which is intended to be connected to a second component 3 (see FIG. 1B) to form a component arrangement 1 (see FIG. 1C). An exemplary embodiment of the method according to the invention is used for this purpose.

(9) FIG. 1A shows a first step of this method. A projection 6 of the first component 2 is deformed by means of a punch 11. The punch 11 is, for this purpose, moved toward the first component 2 along a first direction 100. In particular, in this way, a thickening deformation is performed at the end of the projection 6. This thickening deformation of the projection 6 is shown in FIG. 1B. The deformation is in particular of club-like form.

(10) FIG. 1B shows a further step of the method for producing the component arrangement 1. For this purpose, the first component 2 is joined to the second component 3. The second component 3 has a cavity 5 which is delimited by outer walls 7. And, in particular pasty or liquid sealing and/or connecting material 4 is introduced into the cavity 5 and thus between the outer walls 7. The sealing and/or connecting material 4 is thus applied to the second component 3. The sealing and/or connecting material 4 advantageously has a low viscosity and is thus easily deformable and displaceable.

(11) For the manufacture of the component arrangement 1, the first component 2 is mounted onto the second component 3, or vice versa, along a second direction 200, which can also be referred to here and below as joining direction. This has the effect that the projection 6 enters the cavity 5 and partially displaces the sealing and/or connecting material 4. Sealing and/or connecting material 4 thus flows out of the cavity 5. To capture the sealing and/or connecting material 4 that flows out, the first component 2 comprises overflow chambers 10, in which the sealing and/or connecting material 4 can be captured. The overflow chambers 10 may optionally also be formed in the component 3.

(12) In FIG. 1B, it can furthermore be seen that the first component 2 has opposing walls 9. The opposing walls 9 are situated opposite the outer walls 7 of the cavity 5 of the second component 3. During the joining-together process of the first component 2 and of the second component 3, the outer walls 7 thus come into contact with the opposing walls 9. As soon as the outer walls 7 and the opposing walls 9 come into contact, a deformation of the outer walls 7 of the cavity 5 occurs during further movement of the first component 2 along the second direction 200. This can be seen from FIG. 1C. As soon as the first component 2 and the second component 3 have been joined together to form the component arrangement 1, the outer walls have been mechanically deformed to a maximum extent.

(13) FIG. 1C schematically shows the component arrangement 1 that has been realized as a result of the first component 2 and second component 3 being joined together. Here, on the one hand, excess sealing and/or connecting material 4 that has been displaced out of the cavity 5 by the projection 6 has been collected in the overflow chambers 10 of the first component 2. At the same time, the outer walls 7 of the cavity 5 have been deformed. In this way, the cavity 5 with the deformed outer walls 7 has a cross section which is substantially arcuate. Since the projection 6 has been deformed into a club-like form, an outer contour of the projection 6 and an inner contour of the cavity 5 are substantially complementary with respect to one another.

(14) After the joining-together of first 5 component 2 and second component 3, the sealing and/or connecting material 4 is cured, such that an elastic sealing and/or connecting element 8 is formed. By means of the sealing and/or connecting element 8, a secure and reliable connecting and/or sealing action between the first component 2 and the second component 3 is provided. In particular if the first component 2 and the second component 3 have different materials, relative movements between the first component 2 and the second component 3 can occur owing to external operating circumstances, such as for example a lift-off of the first component 2 from the second component 3 or different warming owing to different coefficients of thermal expansion. In particular, a movement counter to the second direction 200 would, in the case of known seals or connections from the prior art, lead to a reduction of the sealing and/or connecting action, because known seals or connections always require a contact pressure between the first component 2 and second component 3. By contrast, the component arrangement 1 according to the invention ensures an improved sealing and/or connecting force even if the first component 2 is moved relative to the second component 3 counter to the second force 200. By means of the club-like projection 6 and the deformed outer walls 7 of the cavity 5, a movement of the first component 2 counter to the second direction 200 leads to a compression of the connecting and/or sealing element 8 between the club-like projection 6 and the deformed outer walls 7.

(15) As a result of the compression, an elevated pressure is exerted on the sealing and/or connecting element 8, whereby the sealing and/or connecting action is improved. An adequate sealing and/or connecting action between the first component 2 and the second component 3 thus exists in every situation, wherein said sealing and/or connecting action is even intensified in the event of a lift-off of the first component 2 from the second component 3.

(16) Provision is made for the entire cavity 5 to be filled with the sealing and/or connecting material 4 such that the sealing and/or connecting element 8 is present within the entire cavity 5 and, depending on the usage situation, as far as the overflow chambers 10. This is advantageously achieved by virtue of sufficient sealing and/or connecting material 4 being introduced into the cavity 5 such that an introduction of the projection 6 into the cavity 5 leads to a displacement of a part of the sealing and/or connecting material 4 out of the cavity 5. The displaced sealing and/or connecting material 4 is subsequently received by the overflow chambers 10 of the first component 2. It is ensured in this way that the cavity 5 is completely filled with the sealing and/or connecting material 4 and thus with the sealing and/or connecting element 8, wherein, at the same time, no excess sealing and/or connecting material 4 remains in an uncontrolled manner between the first component 2 and the second component 3.

(17) The deformation of the outer walls 7 may take place either plastically or elastically. If it is intended for the component arrangement 1 to be dismantled again, then an elastic deformation of the outer walls 7 is advantageously realized. This may be assisted by an application of a separating agent and/or lubricant before the introduction of the sealing and/or connecting material 4 with subsequent assembly of the components. If provision is not made for disassembly of the component arrangement 1, then the outer walls 7 may also be plastically deformed, and the separating agent or lubricant may be omitted. Provision is advantageously furthermore made for a maximum width of the club-like projection 6 to be smaller than a minimum opening width b of the deformed outer walls 7. A removal of the projection 6 from the cavity 5 is thus possible. Nevertheless, by means of the club-like form and the deformed outer walls 7, it is made possible for the sealing and/or connecting element 8 to be compressible between club-like projection 6 and deformed outer walls 7 if the first component 2 lifts off from the second component 3.

(18) FIG. 2 shows the component arrangement 1 as per a further exemplary embodiment of the invention. In turn, the component arrangement 1 has a first component 2 and a second component 3. Here, a cavity 5 is formed in the second component 3. The cavity 5 is, analogously to the previous exemplary embodiment, filled with a sealing and/or connecting material 4. Furthermore, the second component 3 has overflow chambers 10, analogously to the exemplary embodiment described above. The first component 2 has a projection 6 which is of T-shaped form. The T-shaped projection engages into the cavity. In the component arrangement 1 illustrated in FIG. 2, the first component 2 and the second component 3 are shown in a fully manufactured state, that is to say in a state in which the first component 2 and the second component 3 have been joined together. By means of the cavity 5 and the sealing and/or connecting material 4, the first component 2 and the second component 3 have been sealed off with respect to one another.

(19) The cavity 5 is surrounded by outer walls 7 which narrow from a free end of the projection 6 toward a root region of the projection 6. Thus, analogously to the previous exemplary embodiment, a lift-off of the first component 2 from the second component 3 effects a compression of the sealing and/or connecting material 4 that has cured to form an elastic sealing and/or connecting element. Thus, the same advantages are achieved as in the exemplary embodiment described above. By contrast to the previous exemplary embodiment, the outer walls 7 of the second component 3 are not deformed during the joining-together of first component 2 and second component 3.

(20) FIGS. 3A to 3D show component arrangements 1 as per further exemplary embodiments. The component arrangement 1 as per FIG. 3A comprises a first component 2, with a projection 6 which has an undercut 12, and a second component 3, which has a cavity 5 with an undercut 18. The two undercuts 12 and 18 are arranged opposite one another. A sealing and/or connecting material 4 that has cured to form a sealing and/or connecting element is arranged in the cavity 5, which material surrounds the projection 6, projecting into the cavity 5, of the first component 2. The cavity 5 substantially has a diameter which is constant over the height of the cavity. The projection 6 of the first component 2 also substantially has a continuously constant width or thickness. The undercut 12 of the projection 6 arises owing to the inclination of the projection 6 relative to a joining axis 15, which is shown orthogonally with respect to the parting plate 14 that runs between the first component 2 and the second component 3. The joining axis 15 runs parallel to the joining direction 200 and parallel to the intended loading direction of the component arrangement 1.

(21) The component arrangement 1 as per FIG. 3B differs from the component arrangement 1 as per FIG. 3A in that the opening region of the cavity 5 is formed so as to be smaller than the base region of the cavity 5. In other words, the cavity 5 of the second component 3 narrows in the direction of the opening of the cavity 5. A further difference in relation to the exemplary embodiment as per FIG. 3B arises from the fact that the projection 6 of the first component 2 has a width which increases in the direction of the base region of the cavity 5, whereby the undercut 12 is formed. The projection 6 has a first width 16 and, in the immediate vicinity of the base region of the cavity 5, a second width 17, wherein the second width 17 is greater than the first width 16. In other words, the spatial extent of the projection 6 parallel to the base region of the cavity 5 is greater in a region arranged relatively close to the base region than in a region that is further remote from the base region of the cavity 5.

(22) FIGS. 3C and 3D illustrate further exemplary embodiments of component arrangements 1, wherein the individual component arrangements 1 differ from the component arrangement 1 as per FIG. 3B by the shape and/or size of the projection 6. The first component 2 of the component arrangement 1 as per FIG. 3C has a first partial section, with a continuously constant width or a continuously constant diameter, and has a second partial section, the width or diameter of which increases in the direction of the base region of the cavity 5. The second partial section is in this case arranged closer to the base region of the cavity 5 than the first partial section. An undercut 12 of the projection 6 is formed by the second partial section which increases in size in the direction of the base region.

(23) The projection 6 of the first component 2 of the component arrangement 1 as per FIG. 3D has a club-like form. By means of the club-like form, a partial section of the projection 6 which widens or increases in size in the direction of the base region of the cavity 5 is formed, whereby an undercut 12 is formed. The club-like form may be formed for example by means of a deformation step prior to the joining-together of the components 2, 3.

(24) FIGS. 4A and 4B illustrate a method for producing a component arrangement 1 as per a further exemplary embodiment. Here, a first component 2 and a second component 3 are provided, wherein the components 2, 3 have in each case one cavity 5 and one projection 6 with an undercut 12. In the exemplary embodiment shown, the components 2, 3 are of identical or point-symmetrical form with regard to the surfaces that are to be connected. The components 2, 3 furthermore have in each case one overflow chamber 10 and one guide element 13, the functioning of which will be described in more detail below.

(25) Before the joining-together of the components 2, 3, a sealing and/or connecting material 4 is introduced into the cavity 5 of the second component 3. The components 2, 3 are subsequently joined together such that the projection 6 of the first component 2 projects into the cavity 5 of the second component 3 and the projection 6 of the second component 3 projects into the cavity 5 of the first component 2. Furthermore, the projections 6 of the components 2, 3 are elastically or plastically deformed during the joining-together. After the joining-together, the projections 6 are surrounded by the sealing and/or connecting material 4, which can cure to form an elastic or solid sealing and/or connecting element. Sealing and/or connecting material 4 displaced by the projections 6 can be received in overflow chambers 10 of the components 2, 3. After the joining-together, the guide elements 13 of the components 2, 3 project into the overflow chamber 10 of the respective other component 2, 3, whereby lateral forces can be advantageously absorbed.

(26) In principle, the projections 6 of FIGS. 3B to 3D may have a multiplicity of different possible shapes or sizes. The projections 6 preferably increase in size in the direction of the free end. The undercuts of the projections 6 and outer walls are preferably situated opposite the undercuts of the opposing walls in the cavities 5. The projections 6 and cavities 5 may be produced mechanically, chemically, electrochemically and/or thermally.

(27) The features described in the exemplary embodiments shown may also be combined with one another in accordance with further exemplary embodiments. Alternatively or in addition, the exemplary embodiments shown in the figures may have further features as per the embodiments of the general description.

LIST OF REFERENCE DESIGNATIONS

(28) 1 Component arrangement 2 First component 3 Second component 4 Sealing/connecting material 5 Cavity 6 Projection 7 Outer wall 8 Sealing/connecting element 9 Opposing wall 10 Overflow chamber 11 Punch 12 Undercut 13 Guide element 14 Parting plane 15 Joining axis 16 First width 17 Second width 18 Undercut of the cavity 100 First direction 200 Second direction a Maximum width b Minimum opening width

(29) The foregoing disclosure has been set forth merely to illustrate the embodiments of the invention and is not intended to be limiting. Since modifications of the disclosed embodiments incorporating the spirit and substance of the invention may occur to persons having ordinary skill in the art, the invention should be construed to include everything within the scope of the appended claims and equivalents thereof.