Photovoltaic Connector Structure for Low-Impedance Contact Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing photovoltaic connectors suffer from unreliable contact due to high contact impedance and medium transmission, leading to excessive temperature rise, insulation burning, and power generation loss.
Innovation Solution
A photovoltaic connector design featuring a socket and plug connector with elastic sheets and convex structures, along with pressing members to enhance contact area and stability, and buckling arms for secure connection, ensuring reliable power transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a stamping and round forming structure with conductive internal network is used in the female terminal, then the connector structure is simple and easy to manufacture, but the contact impedance is high and contact reliability is poor
Solution Approach 1:
The patent changes the contact interface geometry from a traditional stamping structure to a convex body structure that fits into a corresponding cavity. This geometric parameter change increases the contact area and reduces contact impedance, improving contact reliability while maintaining manufacturing feasibility through stamping or injection molding processes
Solution Approach 2:
The patent introduces curved surface features including the convex body with arc-shaped contact surface and the corresponding cavity with matching curved geometry. This curvature design increases the contact area between male and female terminals, reduces contact impedance, and improves current transmission reliability compared to flat stamping contacts
2Device complexity
If the male terminal presses the conductive internal network against the inner wall of the female terminal, then the connector structure is simple, but the contact area is small and contact stability is poor
Solution Approach 1:
The male terminal features a convex body with an arc-shaped contact surface that fits into a corresponding cavity in the female terminal. This curved surface design significantly increases the contact area between mating connectors, improving current transmission stability and reducing contact impedance without requiring complex multi-component structures
3Device complexity
If medium transmission is used for power transmission, then the connector structure is simple, but the contact impedance increases and power generation loss increases
Solution Approach 1:
The patent changes the contact interface parameters by introducing a convex body with arc-shaped contact surface that fits into a matching cavity. This geometric modification increases the contact area and improves current transmission efficiency, reducing power generation loss while maintaining a relatively simple single-piece terminal structure
4Adaptability or versatility
If the connector undergoes repeated plugging and unplugging, then the connector can be used multiple times, but the elastic sheets undergo inelastic deformation and contact performance deteriorates
Solution Approach 1:
The patent incorporates elastic sheets between the conductive internal network and the inner wall of the female terminal, and includes elastic pressing members that apply pre-compression force. This beforehand cushioning design compensates for wear and deformation during repeated plugging and unplugging operations, maintaining stable contact performance and extending connector service life
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
The design increases contact stability, reduces impedance, and prolongs the service life of the connector by enhancing structural stability and compatibility with various cable diameters.
Implementation Method 1
elastic sheets are provided in the first through holes; an elastic contact area is formed on the inner wall of the elastic sheet
Implementation Method 2
the male terminal is provided with at least one convex body at one end close to the socket connector, the convex body abuts against the inner wall of the female terminal
Implementation Method 3
the first pressing member is provided with a plurality of elastic pressing members corresponding to the positions of the elastic sheets and used for squeezing the elastic sheets
Data Source
AI summary
The present disclosure provides a photovoltaic connector with good contact performance. The photovoltaic connector comprises a socket connector and a plug connector which is plugged and unplugged with the socket connector; the socket connector comprises a socket body and a female terminal provided in the socket body; the plug connector comprises a plug body and a male terminal provided in the plug body; the male terminal is inserted into the female terminal, one end of the female terminal is provided with a plurality of first through holes, and the first through holes are provided with elastic sheets. The photovoltaic connector according to the present disclosure increases the contact area and reduces the contact impedance. The photovoltaic connector has good contact performance.