The instruments of different cars are different, all of which are film panels, but the conventional instruments of general cars include speedometer, tachometer, oil pressure gauge, water temperature gauge, fuel gauge, charging gauge, etc.
A variety of indicator lights or warning lights are made on the film panel of modern car dashboards, such as coolant level warning light, fuel level indicator light, washer fluid level indicator light, charging indicator light, high and low beam dimming indicator Lights, transmission gear indicator, brake anti-lock brake system (ABS) indicator, driving force control indicator, airbag (SRS) warning light, etc. The following is a detailed description of the structural distribution of the automotive instrument panel film panel by taking a car instrument film panel on hand as an example.
The speedometer on the membrane panel of the car dashboard actually consists of two gauges. One is the speedometer and the other is the odometer, traditional speedometers are mechanical. A typical mechanical odometer is connected to a flexible shaft. There is a wire cable inside the flexible shaft. The other end of the flexible shaft is connected to a certain gear of the transmission. The rotation of the gear drives the wire cable to rotate, and the wire cable drives a magnet inside the odometer cover to rotate. The cover ring is connected with the pointer and the pointer is placed in the zero position through the hairspring. The speed of rotation of the magnet causes changes in the size of the magnetic field lines. The balance is broken and the pointer is thus moved. This speedometer is simple and practical. It is widely used in large and small cars. but. With the development of electronic technology. Nowadays, many car instruments have used electronic speedometers. The common one is to obtain signals from the speed sensor on the transmission, and to deflect the pointer or display numbers through changes in the pulse frequency.
The odometer is a digital instrument, which meshes with the worm on the speedometer drive shaft through the transmission gear of the counter drum to make the counter drum rotate. Its characteristic is that the upper drum rotates a full circle. The next stage drum rotates 1/10 of a turn. Like the speedometer, the current odometer also has an electronic odometer, which obtains the mileage signal from the speed sensor. The mileage number accumulated by the electronic odometer is stored in the non-volatile memory, and the state data can also be saved in the state of no electricity.
The tachometer is generally located in the instrument panel. Placed symmetrically with the speedometer. The tachometer works according to the magnetic principle. It receives the pulse signal generated when the primary current in the ignition coil is interrupted. And convert this signal into a displayable speed value. The faster the engine revs and the more pulses the ignition coil produces, the greater the rev value shown on the meter.
Nowadays, cars are generally electronic tachometers, with pointer type and liquid crystal digital display type. There are digital integrated circuits in the table. It drives the pointer movement or digital display after calculating the voltage pulse sent from the ignition coil. There is also a tachometer that takes out the pulse signal from the generator and sends it to the tachometer circuit to interpret the speed value. However, it is affected by factors such as the slippage of the generator belt. The numbers are not very precise.
Anyone who has driven a car knows that when the vehicle is started, a lot of dazzling indicator lights will pop up on the instrument panel. Many people may not recognize these indicators fully, and do not know what they mean. The seatbelt on the film panel is not fastened to the warning light. As we all know, many models now not only have the seatbelt not fastened, but will emit a warning light and sound, which reduces the probability of people forgetting to fasten the seatbelt.
The brake system warning light on the film panel. Many friends don't pay attention to this warning light when driving, thinking that the car can go up after releasing the handbrake. If the handbrake is not completely released before driving on the road , it will have a lot of consumption of the brake system, and will also increase the maintenance cost of the owner and the cost of repairing the brake system. The door or the trunk lid is not closed. When the door is opened or the door is not closed properly, the indicator light on the membrane switch panel will light up, and it will not be displayed until the door is tightly closed, and the door is not closed. It is very dangerous to drive on the road. The best way to get into the habit of driving is to lock the doors.
The high beam on the film panel is designed to better observe the road conditions ahead when driving at night, but it should not be turned on for a long time. , but if you see a vehicle approaching in the opposite lane, you should close it immediately. Turning off the lights at a distance will damage the eyesight of the driver of the oncoming vehicle or even cause blindness. The fog light on the membrane switch panel, you can know what it does by listening to the name. It is turned on in weather conditions with low visibility in heavy fog, heavy rain and heavy snow. When the visibility is relatively low, the fog light is used with high power and high brightness. The characteristics of strong penetration.
The foot brake indicator light on the membrane panel mainly reminds the driver to step on the foot brake pedal. This sign is only available in automatic transmission vehicles. The speed cruise control system indicator light is used when the speed cruise control system is activated and the cruise control is set. When the vehicle is driving, the light on the membrane switch panel will automatically light up. When the fuel reserve is insufficient, a warning light will also be issued. When the light on the membrane panel lights up, it means that the fuel is about to run out. It is recommended that you refuel as soon as possible when the light is on!
The membrane switch panel is used in the car dashboard, and black is used as the background color of the membrane panel. There is a rectangular transparent window on the membrane switch panel, and the above logo can be clearly seen. There are 4 colors on the panel, white , red, yellow and green, the white display above is the tachometer numbers 0 to 8, 50,90,130, the red display on the panel is, oil display, water temperature display, battery display, car lock display, seat belt Display, airbag display, handbrake display, yellow display on the panel, ABS, driving force indicator, tire pressure monitoring, only one green on the panel, cruise control display.
Shenzhen pinban Technology Co., Ltd. is a professional manufacturer of membrane switches, membrane panels (including instrument panels, control panels), membrane buttons, decorative masks, button stickers, nameplates, labels and other screen printing electronic products. company of. The company adheres to the business philosophy of "small products, big stage, based on local, tailor-made" and "make quality a symbol", implements production management in strict accordance with ISO9001, and strictly controls product quality. Efforts to build the first brand of membrane switch panels, to provide users with the most satisfactory products and the most thoughtful service.
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