Camera Flash Lamp Lithium Battery Right-Angle Contact
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Solution Overview
Problem
The existing set-top flash lamps for cameras have unsatisfactory performance due to their reliance on four AA batteries, which result in a long recycling period and limited number of flashes, requiring additional expensive power supplies and being inconvenient to carry, especially with the lack of adaptation to newer high-capacity lithium batteries.
Innovation Solution
The improved set-top flash lamp uses a lithium battery with a right-angle laminate electrical output contact and access contact, allowing for efficient electrical connection and reduced contact resistance, enabling faster recycling and more flashes per charge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If four AA batteries are used as power supply, then the lamp can be recharged and used multiple times, but the recycling period becomes long (3.5 seconds or more) and the number of flashes is limited (about 200 times)
Solution Approach 1:
The patent changes the battery type from AA batteries to a single lithium battery, which fundamentally alters the power supply parameters. This enables the recycling period to be reduced to 1.5 seconds and increases the number of flashes to over 650 times per charge, directly resolving the contradiction between recycling speed and productivity.
2Duration of action of stationary object
If additional external power supply box and charger are purchased to improve performance, then the recycling period and number of flashes can be improved, but the device complexity and portability deteriorate
Solution Approach 1:
The patent merges the power supply function into the lamp body by using a single lithium battery that is integrated into the lamp holder. This eliminates the need for separate external power supply boxes and chargers, reducing the number of components from 6 items (lamp, 4 batteries, charger, external power supply, external power supply charger) to just 3 items (lamp, lithium battery, charger), thereby improving portability while maintaining enhanced performance.
3Quantity of substance
If high-capacity lithium battery is used to improve power supply capacity, then the recycling period and number of flashes are improved, but the electrical connection requirements become more stringent
Solution Approach 1:
The patent employs an asymmetric L-shaped electrical contact design where the contact consists of two perpendicular segments: one horizontal segment contacts the positive terminal of the lithium battery, and the other vertical segment contacts the negative terminal. This asymmetric configuration simplifies the manufacturing requirements compared to precise circular contacts, as the L-shape naturally guides the contact points and tolerates greater variation in battery positioning while ensuring reliable electrical connection.
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 configuration significantly increases the recycling rate and number of flashes per charge, meeting user needs with a single lithium battery and charger, while reducing costs compared to prior art solutions.
Implementation Method 1
one lithium battery having an electrical output contact is received in the battery accommodating cavity
Data Source
AI summary
A set-top flash lamp of a camera, comprising a lamp holder (2) and a lamp cap (1). A battery accommodating cavity (4) and a battery accommodating cavity cover (3) are formed in the lamp holder (2). A lithium battery (5) is accommodated in the battery accommodating cavity (4), and the lithium battery (5) comprises an electrical output contact (6). The electrical output contact (6) is in the shape of a right-angled sheet, and is composed of end surface right-angled sides (61) and bottom surface right-angled sides (62), wherein the end surface right-angled sides (61) are located on the front end surface (51) of the lithium battery (5); and the bottom surface right-angled sides (62) are arranged on the bottom surface (52) of the lithium battery (5). An electrical access contact (7) is contained in the battery accommodating cavity (4), and is arranged on a side wall of the battery accommodating cavity (4) which is opposite to the bottom surface (52) of the lithium battery (5). The set-top flash lamp improves the performance and reduces the costs.