Company Z designs, manufactures, and sells various types of equipment, and also develops systems. The company is one of the newcomers to the environment and energy sector, which has seen a rise in popularity in recent years.
In order for EVs to become more widespread, it is essential to expand the number of charging facilities. As millions of EV chargers are expected to be installed nationwide in the future, the client's requirements were very strict.
Chargers are often installed outdoors, so they need to be highly durable, such as waterproof, to safely supply large amounts of power to EV batteries. Needless to say, reliability is also important to ensure a stable power supply.
In addition to ensuring durability and reliability, the company was also required to "cut power consumption." Company Z also faced the issue of the high power consumption of the charging equipment itself.
Mr. I, the head of the company's development department, had this to say:
"There was a demand for the charger itself to be energy efficient. As a charging device for eco-cars, this was a natural requirement, and with energy regulations becoming more stringent, energy efficiency was sure to be a major selling point. The requirements were very strict, but conversely, we were convinced that if we could simultaneously achieve both reliability and energy efficiency, we would have an advantage in the charger market." (Mr. I)
Now that we are in a transitional period, delivering energy-efficient, high-quality products is a crucial factor in the spread of EVs, and is also a mission imposed on manufacturers. Company Z decided to actively consider improvement measures to meet the requirements.
While searching for ways to improve the situation, General Manager I of the Development Division visited SANYO DENKI CO., LTD. 's booth at an exhibition. When he asked for advice, the SANYO DENKI CO., LTD. representative made a surprising suggestion.
"SANYO DENKI CO., LTD. 's proposal was to replace AC Cooling Fan with Splash Proof Fan that use DC input. For our company, the use of AC Cooling Fan is something that is taken for granted, so DC Cooling Fan were not even on the table, but we decided to hear what they had to say." (Mr. I)
After receiving the proposal, Company Z learned that Splash Proof Fan had many advantages, so they immediately implemented a sample of the "Splash Proof Fan" (120 mm square, 38 mm thick) in a prototype and conducted an evaluation and verification.
"Chargers are often installed outdoors, so waterproofing is essential. Splash Proof Fan waterproof, so it is clear that it is durable and reliable. It also consumes less power than AC Cooling Fan, so it also contributes to energy savings for the equipment.
Furthermore, the proposed Splash Proof Fan has an expected lifespan that is four times longer than conventional AC Cooling Fan, and we expect that the extended lifespan of the fan will reduce maintenance work." (Mr. I)
We were able to confirm many benefits, including improved durability and reliability, energy savings, and reduced maintenance labor.
*For more information about Splash Proof Fan, see Knowledge Fan Basics: Features of Splash Proof Fan, Oil Proof Fan, Wide Temperature Range Fan, and G Proof Fan
Thus, after several months of detailed evaluation testing, Company Z confirmed the numerous benefits of switching to Splash Proof Fan and decided to adopt it.
After evaluation of the prototype, the "Splash Proof Fan" was installed in an "EV charger" ordered by Company Z, and it proved to be even better than expected. The expected lifespan was increased four-fold, from 25,000 hours to 100,000 hours *1. Power consumption was reduced by 70%.
Regarding this implementation, Mr. I had this to say:
"We were able to solve the difficult issues of improving durability and reliability and saving energy, and we are also hoping to reduce maintenance work. Not only did we build a relationship of trust with the client, but it also led to increased profits for our own company. SANYO DENKI CO., LTD. 's proposal was essential in meeting the requirements that were being met. We hope that we can continue to make a major contribution to expanding the installation of chargers, which are key to the spread of EVs." (Mr. I)
*1 Indoor environment: Survival rate 90%. Calculated at 60°C, rated voltage, continuous operation, in free air.
For more information about Splash Proof Fan, please also see "Features of Splash Proof Fan, Oil Proof Fan, Wide Temperature Range Fan, and G Proof Fan."
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