Housing, assembly with a housing and method for producing the assembly

Abstract

The invention relates to a housing (10) comprising a first housing part (14) and a second housing part (16; 16a) which form a receiving space (12) for receiving at least one component (1), wherein the two housing parts (14, 16; 16a) are connected to one another in the region of a joining zone (15) by a materially bonded connection and consist of different materials, wherein the first housing part (14) is designed as a rigid housing part (14) which has a recess (18) which delimits the receiving space (12), and wherein the recess (18) is covered by the at least substantially planar second housing part (16; 16a).

Description

Technical area

[0001] The invention relates to a housing. Furthermore, the invention relates to an assembly, in particular an electrical and / or electronic assembly, comprising a housing designed according to the invention for accommodating at least one component, as well as to a method for producing such an assembly. State of the art

[0002] From DE 10 2018 200 512 A1, the applicant discloses a housing designed in the manner of a blister pack and used to enclose or accommodate an electrical or electronic circuit arrangement. The known housing comprises at least a first housing part formed from a thermoformed film that is connected to a second housing part in the region of a joining zone. The first housing part may be designed in the form of an adhesive tape. Disclosure of the invention

[0003] The housing according to the invention with the features of claim 1 has the advantage that, on the one hand, it enables sufficient protection of components arranged within a rigid housing part, and, on the other hand, it provides a particularly simple, media-tight connection to a housing cover. In particular, few manufacturing steps are required to form such a housing cover, which is referred to below as the second housing part. Furthermore, the housing is characterized by particularly simple manufacturing and low weight.

[0004] The invention is based on the idea of ​​designing the second housing part in the form of an adhesive tape that is connected to the rigid first housing part in the region of a joining zone. By appropriately designing the second housing part, the required strength or rigidity of the second housing part is achieved to protect the components arranged in the first housing part within the housing.

[0005] Against the background of the above explanations, a housing according to the invention with the features of claim 1 therefore has a first housing part and a second housing part, which form a receiving space for receiving components. The two housing parts are connected to one another in the region of a joining zone by a materially bonded connection and are made of different materials. The first housing part is designed as a rigid housing part, which has a recess that delimits the receiving space. The recess is covered by the at least substantially planar second housing part, wherein the second housing part is designed as an adhesive tape with an adhesive layer arranged at least on the side facing the joining zone.Preferably, the adhesive layer on the adhesive tape is formed exclusively in the region of the joining zone and / or the adhesive tape has adhesive-layer-free regions on the side facing the joining zones, in particular adhesive-layer-free regions in the region of the recess.

[0006] Advantageous further developments of the housing according to the invention are listed in the subclaims.

[0007] In order to achieve the required strength or stiffness of the adhesive tape to protect the components arranged within the receiving space, it is preferably provided that the adhesive tape is designed as a fiber-reinforced adhesive tape. A fiber-reinforced adhesive tape is understood to mean fiber or fabric materials in the adhesive tape that are known per se from the prior art, which are preferably arranged in a carrier material of the adhesive tape, i.e. not in the adhesive layer of the adhesive tape. Alternatively, however, it can also be provided that a corresponding chemical composition or materials of the adhesive tape, a chemical and / or physical post-treatment, e.g. by UV radiation, heat, plasma, etc., a subsequent crosslinking or curing of the material of the adhesive tape takes place to increase the stiffness or strength.

[0008] A particularly media-tight and mechanically strong connection between the two housing parts is achieved if the adhesive tape has a section formed against a peripheral wall of the first housing part. This generates forces parallel to the plane of the formed section when compressive load is applied to the second housing part.

[0009] Given the required strength or rigidity of the first housing part, it is intended that it be made of plastic or metal. In particular, the first housing part can be formed by a deep-drawn part or an injection-molded part, each made of plastic. In the case of a metallic first housing part, this can be formed, for example, as a cast part or a deep-drawn part, preferably made of aluminum or steel.

[0010] As already explained above, in order to achieve the final material properties of the adhesive tape, it may be necessary for the adhesive tape to be cured by a physical and / or chemical post-treatment.

[0011] If at least one component arranged within the housing serves as a display, the adhesive tape can also be optically transparent, at least in some areas. This ensures visibility of the display within the housing.

[0012] With regard to the desired or required strength or stiffness, the adhesive tape has a thickness of more than 100µm, preferably more than 500µm.

[0013] Particularly simple and secure application of the adhesive tape in the joining area is achieved when the joining zone forms a flat surface. However, for geometric reasons, it may be necessary for the joining zone to be non-flat or to have steps or similar geometric shapes. In this case, a positive adaptation of the contour of the adhesive tape in the joining area is achieved by a correspondingly low stiffness or relatively low thickness of the adhesive tape.

[0014] The adhesive tape can also be made of a material that has a membrane function. Membrane functionality means that the adhesive tape is permeable to certain substances. Alternatively or additionally, the adhesive tape can also be made of a material that has electrical and / or thermal conductivity. This enables, for example, an electrostatic protection function or a cooling function.

[0015] By selecting the appropriate material for the adhesive tape, transparency of the adhesive tape for specific wavelengths or filtering of the wavelengths can be achieved.

[0016] Furthermore, the invention also encompasses an assembly, in particular an electrical and / or electronic assembly, comprising a housing designed according to the invention as described so far, and at least one component arranged in the receiving space of the housing, in particular an electrical and / or electronic component, wherein a gap is formed between the at least one component and the adhesive tape. Alternatively, such an assembly can also be designed such that the at least one component is arranged in contact with the adhesive tape and the adhesive tape is optionally deformed in the region of the at least one component.

[0017] Finally, the invention also encompasses a method for producing such an assembly, wherein the method comprises at least the following steps: In a first step, the first housing part is provided with components arranged in the recess. Subsequently, in a second step, the adhesive tape is brought into contact with the first housing part in the region of the joining zone.

[0018] There are various options regarding the geometry of the adhesive tape. In a first embodiment, the adhesive tape can be sized to match the size of the first housing part in the area of ​​the joining zone. In other words, this means that the outer contour of the adhesive tape is flush with the outer contour of the first housing part in the area of ​​the joining zone. This typically requires the adhesive tape to be formed with the required geometry in a prior manufacturing step using a cutting or punching process.

[0019] In an alternative embodiment, it can also be provided that the adhesive tape has a size that is larger than that of the first housing part in the region of the joining zone, and that the part of the adhesive tape projecting beyond the joining zone is folded against a peripheral wall of the first housing part or, alternatively, is cut or severed. If the part of the adhesive tape projecting beyond the joining zone is folded over, a particularly intimate or large-area and therefore strong connection is achieved between the two housing parts. If the part of the adhesive tape projecting beyond the joining zone is cut off, the manufacturing process of the adhesive tape is simplified in that the adhesive tape does not have to be precisely pre-cut or pre-punched in advance when it is connected to the first housing part. This allows for larger tolerances during assembly.

[0020] As already explained above, it may also be provided that the material of the adhesive tape is cured by subsequent physical and / or chemical post-treatment.

[0021] Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments of the invention and from the drawings. Short description of the drawings The Fig. 1 to 3 show, in simplified sectional views, differently designed assemblies, each consisting of two housing parts connected to one another, with a cover-shaped housing part consisting of an adhesive tape. Embodiments of the invention

[0022] Identical elements or elements with the same function are provided with the same reference numbers in the figures.

[0023] In the Fig. 1 shows an assembly 100 consisting of a housing 10 and at least one component 1 arranged in a receiving space 12 of the housing 10 and having a cubic shape purely for simplification purposes. The assembly 100 can, for example, form an electrical or electronic control unit, a sensor, an electric drive, a fuel cell, or a consumer article, or the like.

[0024] The housing 10 has a first housing part 14 and a second housing part 16 which is connected to the first housing part 14 in a joining zone 15 by a materially integral connection. The first housing part 14 is made of plastic or metal and is designed as a dimensionally stable or rigid housing part 14. A rigid housing part 14 is understood to be a housing part 14 which, with regard to the at least one component 1 arranged in the receiving space 12, enables sufficient mechanical protection against external influences, ie in particular has only slight or no deformation when subjected to external force, in order to protect the at least one component 1 arranged in the receiving space 12 from damage.

[0025] The first housing part 14 is cup-shaped or tub-shaped and has a recess 18. The recess 18 essentially forms the receiving space 12, which in turn is delimited by the second housing part 16, which forms a housing cover 20.

[0026] According to the presentation of the Fig. 1, a distance or gap 22 can be formed between the upper side of the component 1 and the underside of the second housing part 16 or the housing cover 20 facing it. However, it is also conceivable for the upper side of the component 1 to be arranged in abutting contact with the second housing part 16 or the housing cover 20. Furthermore, it is explained that the first component 1 can also be arranged in abutting contact with a housing wall 24 of the first housing part 14 in a lateral direction.

[0027] The second housing part 16 is designed in the form of a single- or double-sided adhesive tape 26 for forming the material-to-material connection with the first housing part 14. The material of the adhesive tape 26 is preferably fabric- or fiber-reinforced or consists of materials that can be cured by subsequent chemical and / or physical treatment to increase the rigidity of the second housing part 16. An adhesive layer 28 of the adhesive tape 26 is arranged over the entire surface of the adhesive tape 26, at least on the side facing the first housing part 14.

[0028] The first housing part 14 has a flat upper side 30 on the side facing the second housing part 16 in the region of the joining zone 15. Furthermore, the joining zone 15 is designed as a plane as a whole. The adhesive tape 26 closes in the Fig. 1, the peripheral side of the housing part 14 or the housing wall 24 is flush with the outer side of the first housing part 14 or the housing wall 24. Before the second housing part 16 or the adhesive tape 26 is applied to the upper side 30 of the first housing part 14, the upper side 30 can be subjected to a physical and / or chemical pretreatment in order to improve the mechanical properties or a sealing function of the adhesive connection between the two housing parts 14, 16 in the region of the joining zone 15.

[0029] In the Fig. In the embodiment shown in Figure 2, the assembly 100a has a second housing part 16a or a housing cover 20a, which has a peripheral section 32 folded against the housing wall 24. Thus, there is an overlap between the adhesive tape 26a and the housing wall 24. The overlap results in improved strength between the two housing parts 14, 16a and improved sealing.

[0030] Most recently, in the Fig. 3 shows an assembly 100b which differs from the assembly 100a according to the Fig. 2 in that the at least one component 1 arranged in the receiving space 12 has a height H which is greater than the inner height h of the first housing part 14. This has the consequence that the adhesive tape 26a is spherically deformed or has a curvature.

[0031] The assembly 100, 100a, 100b described so far can be modified or altered in many different ways without deviating from the inventive concept. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2018 200 512 A1

[0002]

Claims

[1] Housing (10), with a first housing part (14) and a second housing part (16; 16a), which form a receiving space (12) for receiving at least one component (1), wherein the two housing parts (14, 16; 16a) are connected to one another in the region of a joining zone (15) by a material connection and consist of different materials, wherein the first housing part (14) is designed as a rigid housing part (14) which has a recess (18) which delimits the receiving space (12), wherein the recess (18) is covered by the at least substantially planar second housing part (16; 16a), and wherein the second housing part (16; 16a) is designed as an adhesive tape (26; 26a) with an adhesive layer (28) arranged at least on the side facing the joining zone (15). [2] Housing (10) according to claim 1, characterized by that the adhesive tape (26; 26a) is designed as a fiber-reinforced adhesive tape (26; 26a). [3] Housing (10) according to claim 1 or 2, characterized by that the adhesive tape (26a) has a section (32) formed against a housing wall (24) of the first housing part (14). [4] Housing (10) according to one of claims 1 to 3, characterized by that the first housing part (14) is made of plastic or metal. [5] Housing (10) according to one of claims 1 to 4, characterized by that the adhesive tape (26; 26a) consists of a material which can be cured by a physical and / or chemical post-treatment. [6] Housing (10) according to one of claims 1 to 5, characterized by that the adhesive tape (26; 26a) is optically transparent at least in some areas. [7] Housing (10) according to one of claims 1 to 6, characterized by that the thickness of the adhesive tape (26; 26a) is more than 100µm, preferably more than 500µm. [8] Housing (10) according to one of claims 1 to 7, characterized bythat the joining zone (15) forms a plane. [9] Housing (10) according to one of claims 1 to 8, characterized by that the adhesive tape (26; 26a) consists of a material which has a membrane functionality and / or an electrical and / or a thermal conductivity. [10] Assembly (100; 100a) comprising a housing (10) designed according to one of claims 1 to 9, and at least one component (1) arranged in the receiving space (12) of the housing (10), wherein a gap (22) is formed between the at least one component (1) and the adhesive tape (26; 26a). [11] Assembly (100b) comprising a housing (10) designed according to one of claims 1 to 9, and at least one component (1) arranged in the receiving space (12) of the housing (10), wherein the at least one component (1) is arranged in abutting contact with the adhesive tape (26a) and the adhesive tape (26a) is optionally deformed. [12] Method for forming a housing (10) designed according to one of claims 1 to 9 and / or an assembly (100; 100a; 100b) designed according to claim 10 or 11, comprising at least the following steps: - Providing the first housing part (14) with at least one component (1) arranged or capable of being arranged in the recess (818) - Bringing the adhesive tape (26; 26a) into contact with the first housing part (14) in the region of the joining zone (15). [13] Method according to claim 12, characterized by that the adhesive tape (26) has a size which corresponds to the size of the first housing part (14) in the region of the joining zone (15) and that the adhesive tape (26) is aligned flush with the first housing part (14) in the region of the joining zone (15). [14] Method according to claim 12, characterized bythat the adhesive tape (26a) has a size which is larger than that of the first housing part (14) in the region of the joining zone (15), and that the part of the adhesive tape (26a) projecting beyond the joining zone (15) is folded or cut off or severed against a housing wall (24) of the first housing part (14). [15] Method according to one of claims 12 to 14, characterized by that the material of the adhesive tape (26; 26a) is cured by a subsequent physical and / or chemical treatment.

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