Metal Housing Heat Sink with Integral Rivet Pins
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing housings for electric or electronic devices are complex and costly to manufacture, particularly when it comes to creating a secure and efficient heat dissipation system.
Innovation Solution
The housing incorporates a metal lower part designed as a heat sink with integrally formed rivet pins, which are used to seally connect the lower part, circuit board, shielding plate, and upper part, eliminating the need for screws or separate rivets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional screws or separate rivets are used to connect housing parts, then secure mechanical connection is achieved, but device complexity and manufacturing cost increase
Solution Approach 1:
The rivet pins are formed integrally with the housing lower part as a single piece, eliminating the need for separate screws or rivets. This merging of the housing structure with the fastening elements reduces the total number of parts while maintaining secure mechanical connection through the rivet heads formed on the pins.
Solution Approach 2:
The rivet pins serve multiple functions: they provide mechanical fastening through their rivet heads, create sealing connections between housing parts, and are formed integrally with the housing lower part. This multi-functionality eliminates the need for separate mounting means while achieving both structural and sealing requirements.
2Strength
If traditional screw mounting with domes or cups is used, then secure fastening is achieved, but overall housing height increases
Solution Approach 1:
Instead of using domes or cups that extend outward from the housing surface to accommodate screws, the rivet pins project inward into the housing interior. The rivet heads are formed on the inner side, inverting the traditional mounting approach and thereby reducing the external housing height while maintaining fastening security.
3Reliability
If multiple separate mounting means are used to connect housing parts, then reliable connection is achieved, but manufacturing time and cost increase
Solution Approach 1:
The rivet pins are formed integrally with the housing lower part as a single piece, eliminating the need for separate screws or rivets. This merging of the housing structure with the fastening elements reduces the total number of parts while maintaining secure mechanical connection through the rivet heads formed on the pins.
Solution Approach 2:
The rivet pins are pre-formed as integral parts of the housing lower part during the housing manufacturing process itself, before assembly. This preliminary formation of the fastening elements eliminates the need for separate mounting operations and reduces assembly steps, thereby improving manufacturing efficiency while ensuring reliable connections.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design simplifies and reduces the manufacturing costs by using fewer parts and requiring less overall height, while also providing effective heat dissipation and electromagnetic shielding.
Implementation Method 1
a housing lower part (5) which is made of metal and is designed as a heat sink for dissipating heat generated by the device
Implementation Method 2
It has nubs that penetrate the assigned through-holes of the housing and, through deformation, create a frictional connection with the assigned through-hole and thus a fixed connection between the housing and the cooling apparatus
Implementation Method 3
through deformation, create a frictional connection
Implementation Method 4
a shielding plate (4) for shielding electromagnetic radiation
Data Source
AI summary
The invention relates to a housing for an electric or electronic device. The housing includes a housing lower part, which is made of metal and is designed as a heat sink for dissipating heat generated by the device. At least two rivet pins are formed in one piece with the housing lower part. The housing includes at least one circuit board on which the device is formed in the form of electric and/or electronic components and conductor tracks. The circuit board is mounted in the housing lower part. The housing also includes a shielding plate for shielding against electromagnetic radiation and a housing upper part for closing the housing. The housing lower part, the circuit board, the shielding plate, and the housing upper part are sealingly connected to one another by forming rivet heads on the rivet pins.