{"id":4393,"date":"2021-10-05T10:00:57","date_gmt":"2021-10-05T09:00:57","guid":{"rendered":"https:\/\/ojelectronics.com\/hvac\/?p=4393"},"modified":"2024-04-18T14:26:44","modified_gmt":"2024-04-18T13:26:44","slug":"drhx-sensorless-belt-detection","status":"publish","type":"post","link":"https:\/\/ojelectronics.com\/hvac\/de\/news\/drhx-sensorless-belt-detection\/","title":{"rendered":"DRHX sensorless belt detection granted EU patent"},"content":{"rendered":"The cross-functional collaboration between engineers in both hardware and software at OJ Electronics has not only led to the rather unique DRHX drive solution for rotary heat exchangers. Now the concept with its sensorless belt detection also holds an EU patent.<p>The DRHX drive with sensorless belt detection was originally developed in 2017, and now the European Patent Office has approved its originality and uniqueness.<\/p>\n<p>\u201cOf course, we are tremendously excited,\u201d says Preben Jessen, Head of Drive Products at OJ Electronics, and continues: \u201cIt has been a long journey to get here. Such a process requires twice the work in the sense that you have to document everything twice \u2013 the technical documentation and then another for the judicial team, working through the patent process and approval\u201d.<\/p>\n<h2>Cross-functional collaborations works<\/h2>\n<p>Preben worked closely together with a team of engineers in hardware and software to get the solution right. After thorough examining the system principles the team found that the traditional sensor setup could be simplified with a piece of software.<\/p>\n<p>\u201cWe wanted to make a reliable solution that wouldn\u2019t affect the heat regulation, when you run periodic tests,\u201d says J\u00f6rn Petersen, Software Engineer and one of the key drivers behind the <a href=\"https:\/\/ojelectronics.com\/hvac\/rotor\/\">DRHX Drive<\/a>. \u201cTo do that we needed to combine theory with field data and our years of experience in ventilation systems. But I think the result speaks for itself. We now have a solution with fewer components on the market\u201d.<\/p>\n<div style=\"width: 960px;\" class=\"wp-video\"><!--[if lt IE 9]><script>document.createElement('video');<\/script><![endif]-->\n<video class=\"wp-video-shortcode\" id=\"video-4393-1\" width=\"960\" height=\"540\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/ojelectronics.com\/hvac\/wp-content\/uploads\/sites\/23\/2021\/02\/oj-drhx-dedicated-solutions-to-rotary-heat-exchangers.mp4?_=1\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5963\" src=\"https:\/\/ojelectronics.com\/hvac\/wp-content\/uploads\/sites\/23\/2021\/02\/oj-drhx-dedicated-solutions-to-rotary-heat-exchangers.jpg\" alt=\"\" width=\"1280\" height=\"720\" srcset=\"https:\/\/ojelectronics.com\/hvac\/wp-content\/uploads\/sites\/23\/2021\/02\/oj-drhx-dedicated-solutions-to-rotary-heat-exchangers.jpg 1280w, https:\/\/ojelectronics.com\/hvac\/wp-content\/uploads\/sites\/23\/2021\/02\/oj-drhx-dedicated-solutions-to-rotary-heat-exchangers-300x169.jpg 300w, https:\/\/ojelectronics.com\/hvac\/wp-content\/uploads\/sites\/23\/2021\/02\/oj-drhx-dedicated-solutions-to-rotary-heat-exchangers-1024x576.jpg 1024w, https:\/\/ojelectronics.com\/hvac\/wp-content\/uploads\/sites\/23\/2021\/02\/oj-drhx-dedicated-solutions-to-rotary-heat-exchangers-768x432.jpg 768w\" sizes=\"(max-width: 1280px) 100vw, 1280px\" \/><a href=\"https:\/\/ojelectronics.com\/hvac\/wp-content\/uploads\/sites\/23\/2021\/02\/oj-drhx-dedicated-solutions-to-rotary-heat-exchangers.mp4\">https:\/\/ojelectronics.com\/hvac\/wp-content\/uploads\/sites\/23\/2021\/02\/oj-drhx-dedicated-solutions-to-rotary-heat-exchangers.mp4<\/a><\/video><\/div>\n<h2>Removing the physical sensor adds benefits<\/h2>\n<p>The DRHX sensorless belt detection differs from traditional heat exchanger solutions, as the performance is monitored via software and not by a physical sensor. Basically, it works by measuring the acceleration of the motor after applying a short (100 ms) increase in output current. The internal rotor guard will then detect the acceleration of the motor. If it exceed a defined limit it means the belt is not there and the motor is only spinning the pulley and not the rotor wheel.<\/p>\n<p>\u201cUsually, you would have to stop the system to conduct these tests,\u201d J\u00f6rn Petersen explains.<\/p>\n<blockquote class=\"aligncenter\"><p><strong>\u201cWith the DRHX the system conducts the test on-the-fly every 10 seconds. This is not only convenient for people working in the building, depending on flawless ventilation. It also allows system owners to respond quickly in case of failure and call for preventive maintenance in due time\u201d.<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"rounded alignnone wp-image-3369 size-medium\" style=\"color: #171717;font-style: normal;text-align: start\" src=\"https:\/\/ojelectronics.com\/hvac\/wp-content\/uploads\/sites\/23\/2021\/09\/411-hq-1-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" \/><\/p>\n<p>J\u00f8rn Petersen, Software Engineer at OJ Electronics<\/p><\/blockquote>\n<p>The most obvious benefit with this new solution, however, is the fact that it is a more simple setup, consisting of fewer parts, which makes it easier to assemble at a lower cost.<\/p>\n<h2>Patents provide a competitive edge<\/h2>\n<p>Getting a patent through the European Patent Office is not just a morale boost for OJ employees. It also allows customers to differentiate further in a competitive market. According to Preben Jessen patents often manifest all the way through the value chain.<\/p>\n<p>\u201cOur patents benefit our customers too. Using a patented OJ product your solution is unique as well as protected,\u201d he says. \u201cBeing a part of our customers\u2019 solutions, we share the mark of documented innovation with them. So, it is a win-win\u201d for all in the value chain.<\/p>\n<p>\u201cI\u2019m sure customers and vendors who have been with us for years acknowledge us as an innovative partner. But, holding patents such as this one helps remind ourselves \u2013 all of us \u2013 just how much we push the envelope every day,\u201d he says.<\/p>\n<p>If you want to know more about the EU patent or how a <a href=\"https:\/\/ojelectronics.com\/hvac\/rotor\/\">DRHX solution<\/a> can be tailored and integrated with your heat exchanger solution, reach out to Preben Jessen below.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The cross-functional collaboration between engineers in both hardware and software at OJ Electronics has not only led to the rather unique DRHX drive solution for rotary heat exchangers. Now the concept with its sensorless belt detection also holds an EU patent.The DRHX drive with sensorless belt detection was originally developed in 2017, and now the &hellip;<\/p>\n","protected":false},"author":7,"featured_media":4446,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[252,11],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.0 (Yoast SEO v23.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>DRHX Sensorless Belt Detection Earns EU Patent | OJ Electronics<\/title>\n<meta name=\"description\" content=\"Discover OJ Electronics&#039; 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