Vending Machine Fan Heater Pipe Routing for Door Modules
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Solution Overview
Problem
Existing heating solutions for outdoor vending and payment machines, as well as access control devices, are inefficient and costly, as they fail to evenly distribute heat to all modules within the device, particularly those located in the lower areas and on the door, and require significant energy due to heat loss through metal housings, and cannot operate when the door is open.
Innovation Solution
A device with a fan heater and a pipe system that allows for targeted heating of all modules by routing heated air through a network of pipes with multiple outlets, including those on the door, using temperature sensors and controllers to manage energy use and prevent overheating, and allowing for modular expansion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a fan heater is arranged at the bottom of the housing to heat vending machines and access control devices, then the heating function is provided, but the energy consumption is high and not all modules are sufficiently heated
Solution Approach 1:
The heating system is segmented into multiple independent heating zones, with individual heating elements positioned near different modules (coin return module, banknote module, ticket module, printer module, door modules). Each zone can be controlled independently, allowing heating to be applied only where needed rather than heating the entire housing uniformly, thus reducing overall energy consumption while improving heating effectiveness for specific modules.
Solution Approach 2:
The patent implements local quality by providing targeted heating to specific modules based on their individual heating requirements. Temperature sensors are placed near each module to detect local temperature conditions, and heating elements are positioned to deliver heat directly to the modules that need it most, creating non-uniform temperature distribution optimized for functional requirements rather than uniform heating of the entire housing.
2Ease of operation
If modules are arranged within the housing, then the device structure is compact, but the rising warm air cannot reach every module and lower area modules are not sufficiently heated
Solution Approach 1:
The heating system is divided into multiple independent heating zones with individual heating elements positioned near each module. This segmentation allows warm air to be generated at multiple locations throughout the housing, ensuring that modules at different heights and positions (including lower area modules) receive adequate heating, overcoming the limitation of single-point heating where warm air rises and leaves lower modules cold.
Solution Approach 2:
The patent transitions from single-point heating (one heating element at the bottom) to multi-point heating distributed throughout the three-dimensional housing space. Heating elements are positioned at various heights and locations to create a three-dimensional heating network, ensuring comprehensive thermal coverage of all modules regardless of their vertical or horizontal position within the housing.
3Reliability
If a traditional heating system is used, then the housing can be heated, but the modules attached to the door cannot be heated when the door is open
Solution Approach 1:
The heating system is segmented to include independent heating elements positioned near door-mounted modules (ticket issue module, coin acceptor module). These localized heating zones continue to operate and provide heat directly to door modules even when the door is open, maintaining their operational temperature independently of the main housing heating system, thus enabling continuous operation during door-open periods.
Solution Approach 2:
Door-mounted modules are equipped with their own localized heating elements and temperature sensors, allowing them to self-regulate their temperature independently. When the door opens, these modules continue to receive heat from their dedicated heating elements without relying on the main housing heating system, enabling them to maintain operational temperature and function continuously without interruption.
4Strength
If the housing is made of metal, then the structure is strong and durable, but a large amount of energy is required to heat the air inside because heat is lost through the housing
Solution Approach 1:
The patent applies local quality by positioning heating elements in direct proximity to each module that requires heating, rather than heating the entire housing volume. This localized approach delivers heat directly to the modules at the point of need, minimizing heat loss through the metal housing walls since the heating occurs at the source rather than requiring uniform heating of the entire enclosed space, thus reducing overall energy consumption while maintaining housing strength.
Solution Approach 2:
The heating function is extracted from the housing-level system and moved to the module-level system. Instead of heating the housing as a whole and relying on heat retention, the patent extracts individual heating elements and places them directly at each module, allowing each module to be heated independently without relying on the housing's thermal retention properties, thereby reducing energy loss through the metal housing.
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 solution ensures rapid and efficient heating of all modules, including those on the door, even when open, reducing startup time and energy consumption while preventing overheating, thereby enhancing operational readiness and cost-effectiveness.
Implementation Method 1
at least one fan heater (6), comprising a fan, which can be installed at any free point inside the housing (2) or outside the housing (2)
Implementation Method 2
the at least one air outlet (10) of which supplies heated air to the module to be heated
Data Source
Figure 1~2
Figure 3
AI summary
A device for heating electronic devices, access control devices and vending and payment machines (1) is proposed, which has at least one fan heater (6) which is arranged at any free location inside or outside a housing (2) of the electronic devices, vending and payment machines or access control devices (1), the at least one air outlet of which is fluidically connected by means of an air guide component (7) to each air inlet (8) of a pipe system (9), wherein the pipe system (9) has several air outlets (10) and wherein each module (3) of the vending and payment machines or access control devices (1) to be heated is assigned at least one air outlet (10) which supplies the module (3) to be heated with air heated by the at least one fan heater (6).