电动剃须刀拆除

正如我们所期待的那样，大部分飞利浦Norelco.S9311 electric shaver被制成了注射成型plastic, with a PCBA and a couple of sheet metal components thrown in.

The IM parts have a variety of detail to them, with a range ofmaterials and finishes. There are overmolded gaskets forsealing against water, insert molded pins for electrical contacts, and painted parts with masked symbols for thebuttons. The display on the front is made by using white, thin-walled IM part with die cut sticker on top, which sits between LEDs on the PCBA and a clear plastic IM part that has a black tinted window.

Norelco中的少量金属部件是6个螺丝;一些简单的薄表金属板，卡扣适合到位;压缩弹簧;当然，用于实际剪头发的刀片和箔片。

The blade is the most complex part in the whole shaver, with tiny, sharp blades, lots of bends, and some tiny rivets holding the whole thing together.

The actual cutting action is done by a standard stepper motor, like the type you’d find in a CD drive, powered by a lithium ion battery that’s soldered to a simple PCBA.

In what will become a trend in this teardown, theBraun Series 7 electric shaveris similar to the Norelco, just more involved.

It chiefly makes use of injection molded parts, with overmolding, insert molding, painted parts, and clear optical parts. However, the Series 7 also makes use of heat staking and glue to hold itself together. It also has a wider mix of materials, and makes more use ofstiffer-but-harder-to-mold glass filled plastics.

The Series 7 also has a much higher count of metal components, including more screws; riveted brackets; compression AND custom torsion泉; and some relatively heavy plates and brackets that add some heft to the overall product.

In addition to all thesnap fits，剃须刀头部有几个地方，金属部件弯曲以实际捕获塑料部件，制作自包含，但可移动的组装。

这种剃须刀的电动机实际上是一种定制线性振荡电动机，其与铆钉和大量的微小焊接一起保持在一起，这在消费电子产品中不再看作。

When it’s all laid out, the飞利浦Norelco.actually looks fairly simple, from the large scale layout to the small details. There is, overall, a fairly low part count, with lots of redundant parts to simplify assembly and minimize the number ofIM toolsneeded. Most of the parts themselves are also fairly simple, without overly thick walls or the need for lots of side actions.

Heavy use of snap fits in both the plastic and metal parts allows for a reasonable amount of tolerance in the parts for assembly and also minimizes the number of tools needed. The moving actions in the head of the razor are all achieved by making parts that have a large amount of clearance relative to each other and simply return to their desired position via压缩弹簧. This means most of the moving parts don’t require tight tolerances to achieve a complex range of motion.

The electronics in the Norelco are simple enough that they actually still function when the whole thing is torn down, meaning that, for once, we could actually put a teardown back together and still use it.

TheBraun Series 7electric shaver is, surprisingly, one of the more complex things we’ve torn down. Just looking at the bill of materials, the Series 7 has a much higher part count than the Norelco, particularly when you include all the springs, pins, and fasteners on top of the IM parts. The motion mechanisms in the head use pressed in steel pins, slots, and tabs to constrain the moving parts and make sure they move tightly along one axis.

PCBA更复杂，可拆卸电池，可连接到一些弯曲的铜板而不是标准电线，以及允许显示器相对于电路板的其余部分成角度的柔性区域。由于其更自定义的性质，所使用的线性电机也比标准步进电机更复杂。

While the飞利浦挪威电动剃须刀has the normal bits of polish you’d expect (soft touch, thermoplastic elastomer handle, silver painted and chrome coated parts), it has several other details and design choices intended to win over the customer.

The cutting head has several degrees of freedom and is pretty compliant and easy to move, which creates the feeling that the head is more conforming and will get closer to your face for a nice shave. There is only one small area under the blades where water and hair can get in, meaning it’s very easy to clean, and there is less possibility of the inside of the shaver getting contaminated and breaking down.

Only the blades and foils need to be replaced when they wear out, so the customer doesn’t have to throw away a lot of material when they get a new head.

死了前面的显示屏很明亮，并且当剃刀关闭时完全隐藏，这使得一个漂亮，干净的外观。

鉴于进入的所有细节Braun Series 7 electric shaver，他们所有人都毫不奇怪地加入到良好的抛光产品中。所有运动都使用钢销和塑料轴承，使其具有非常光滑，强烈的感觉。

弹簧加载凸轮的使用确保一切都以满足的方式锁定到位，无论是将头部锁定到适当位置还是在新的刀片和箔片中拍打。剃须刀有两块钢板，只是为了加入重量，这使得产品感觉更具实质性。

Speaking of weight, the larger lithium ion battery also adds more weight and is technically removable, so if it dies, it’s possible to keep the shaver alive (just make sure you put the battery back in correctly!).

使用实际的LCD显示屏，封闭在保护塑料圆顶下，使剃须刀更像是电气工具。

最重要的是，系列7包括翻转修剪器，因此您实际上可以将留胡子达到切割头有用的长度！