車の運転手の疑問：トラックのクラクションはなぜあんなに大きいのか
日常の運転で、車の運転手から時々馬鹿げた質問をされます。「ホーンも同じなのに、なぜ大型トラックのホーンはあんなにうるさいのですか？」この時、私は少し微笑みます。「だって私は大きいから！長いから！だからパワーもさらに強いんです！」私たちの大型トラックは基本的にエアホーンで、普通の車のホーンとは構造が異なります。当然、音は変わっています！エアホーンの原理エアホーンは、一般的に空気源、制御スイッチ、サウンダー、サウンドアンプの4つの部分で構成されています。空気源は圧縮ガスの供給源で、DC電動エアポンプなどを使用することができます[…]
車のクラクションはやみくもに鳴らしてはいけない、正しい使い方はこちら
Many pedestrians will feel this way. When walking on the street or crossing the road, the sound of car horns around is constantly sounding, and the ups and downs are very disturbing. And friends who have a car have also experienced this experience when they are not driving. This is because the drivers do not use the car horns properly. How do drivers use car horns when driving? Is it reasonable? First of all, car owners need to make it clear that the function of setting a horn on the car is not designed to let you vent your moodiness while driving. When drivers are driving, do not honk the […]
車のクラクションを無視しないでください、メンテナンススキルは真剣に受け止めなければなりません、所有者：ついに理解しました
普段、車の音響警告装置のメンテナンスに気を配っていますか？実は、それは車のホーン装置です。ホーンは車にとって重要な部品でもあります。ホーンの機能は、歩行者と車両が互いに注意を促し、運転中の安全を確保することです。車のホーンのメンテナンスはどのように行うべきでしょうか？一般的に、車には電子ホーンが搭載されており、ツイーターとウーファーに分かれています。ホーンの形状は楽器のスオナに似ています。円盤状で、中央部分は円筒形、尾部は螺旋状です。音は[…]
ピー、ピー、ピー、車のクラクションを1回、2回、3回鳴らすための秘密の言葉は何ですか？
According to statistics from the China Communications Bureau in June 2019, China’s car ownership has now exceeded 280 million. In the face of such a large number of cars, the regulatory pressure on the transportation sector is also very high, and cars are mobile objects. It brings difficulties to traffic police, so traffic accidents frequently occur. According to the analysis of relevant experts’ data, there are several major characteristics of traffic accidents in China. One is the weak awareness of traffic regulations, the second is the proliferation of personal heroism, and the third is due to road or It is the impact of natural disasters. The fourth is the driver […]
コーン（ペーパーコーンとも呼ばれる）は、スピーカーの重要なコンポーネントの 1 つです。
When an audio signal is input to the speaker, the voice coil vibrates in the magnetic field. Because the voice coil is fixed on the paper cone, the paper cone will vibrate along with it. The vibration of the paper cone forces the air to resonate, making a sound. Therefore, different sound basin materials will produce different sound quality effects. The following is a list of common cone materials, and the main characteristics of each material cone. Speaker classification The materials used in the tweeter and woofer cones are different. Treble unit is divided into hard dome, soft dome and composite unit Hard dome diaphragms are made of light metals […]
日本の車のクラクションは鋭い音がしますが、ヨーロッパやアメリカの車のクラクションは鈍くて太い音がします。どちらが良いですか?
The car whistle sounds a beep and a beep. In addition, Japanese car horns are mostly dip and the sound is sharp. Most European and American car horns are beeping, dull and louder. Why is that? Which speaker is better? First of all, car horns are divided into electric horns and air horns. Generally, large cars will use louder air horns, while cars will use electric horns, and electric horns are divided into snail horns and basin horns. The most common pot-type speakers are small, cheaper, and have a stronger penetration of the dripping sound. Japanese and Korean cars are more versatile. The snail horn, which looks like a snail, […]
会社の視点としては、電子部品を購入して自ら PCBA を作るのか、それとも PCBA を行う会社を直接探すのか?
First, first look at your company’s product needs and your own supply chain situation. If the supply chain you add is very good, it is usually purchased by yourself. So you know the cost and price Second, if your own strength is product development, not the supply chain, it is still recommended to directly find a PCBA direct contract labor and materials, so that you can relax. Can save time and other issues. The second is currently the most on the market, and there are suitable PCBA manufacturers to contract work and materials. Hard City is a one-stop BOM procurement service dedicated to PCBA factories. Can quickly provide quotes for […]
PCBA 製造会社にとって R & D はどれほど重要ですか?
New developments require more complex, larger PCBA and tighter packaging. These requirements challenge our ability to build and test these units. Further, larger boards with smaller components and higher node counts may continue. For example, a design that is currently drawing a circuit board diagram has approximately 116,000 nodes, more than 5,100 components, and more than 37,800 solder joints that require testing or confirmation. This unit also has BGA on top and bottom, BGA is next. Using traditional needle beds to test this size and complexity board, an ICT approach is not possible. Increasing PCBA complexity and density is not a new issue in manufacturing processes, especially during testing. Realizing […]
PCB 回路基板、PCBA 回路基板とは何ですか、この 2 つにはどのような違いがありますか?
PCB board refers to the light board that only needs to be manufactured and has no parts. PCBA refers to PCBs that have electronic components, parts on the PCB board, and functional circuit boards after SMT. Our common circuit boards are PCBA. PCB boards can only be seen during the original processing of the manufacturer. The picture is the PCBA board