CN205768692U - The colored full liquid crystal display automobile instrument of a kind of double screen stack combinations - Google Patents

Abstract

The utility model discloses a dual-screen superimposed combination color full liquid crystal display automobile instrument, which comprises: an instrument cover, a screen ring, a segment code screen, a color liquid crystal screen, a light guide cover, a PCB circuit board and a bottom case. Because the utility model adopts the color liquid crystal screen and the segment code screen to be superimposed and assembled together, the combined display of various indicators and functions of the car has a simple structure, no pointer and a transmission motor, the circuit is safer and more reliable, and it is resistant to vibration. The screen instrument saves 60% of the manufacturing cost. The circuit principle of the utility model is advanced with a main chip IC, a voltage stabilizing chip WC, various protection circuits, a filter circuit, a DC-DC conversion circuit, etc., and a loudspeaker is provided to send out a warning voice when an alarm is issued. The utility model is connected with the power supply in the car, and can connect the sensor power supply of each part on the car and the transfer switch with the circuit board. The transfer switch can switch various modes displayed by the instrument, such as traditional mode or modern segment code expression form.

Description

A dual-screen superimposed combined color full liquid crystal display automotive instrument

technical field

The utility model relates to the technical field of automobile parts, in particular to an automobile instrument with double-screen superposition and combined color full liquid crystal display.

Background technique

As a means of transportation, the development of automobiles has entered the fast lane, gradually moving toward high-end, energy-saving, low-carbon emissions, complete functions, and easy and convenient driving. Automobile instrumentation is particularly important. It is necessary to realize professional and comprehensive display of vehicle information as soon as possible. To achieve accurate display, clear display. At present, the instruments used in high-end cars have replaced the original instrument panel display by full LCD screen display, realizing comprehensive and clear display, but the production cost of full LCD screen instrument is high, which directly increases the production cost of the whole vehicle. Reduced the market competitiveness of low-end cars.

Contents of the invention

The purpose of this utility model is to provide a dual-screen superimposed combination color full liquid crystal display automotive instrument, through the superposition combination of the segment code screen and the color liquid crystal screen, the effect of full liquid crystal display can be realized, that is, the vehicle information can be fully displayed on the combined instrument The clear display allows the driver to grasp the vehicle situation more accurately, achieves the full LCD display of the car instrument, greatly reduces the production cost of the car instrument, and improves the market competitiveness of the vehicle at the same time.

In order to achieve the above purpose, the technical solution of the present utility model is: a dual-screen superimposed combined color full liquid crystal display automobile instrument includes: instrument cover, screen ring, segment code screen, color liquid crystal screen, light guide cover, PCB circuit board and bottom The shell and the instrument cover are detachably arranged on the screen circle, and the underside of the screen circle is firmly connected with the light guide cover. A groove is set on the light guide cover, and the color LCD screen is detachably set in the groove. The segment code screen is set in the sub-port, the segment code screen covers the color LCD screen, a number of light guide holes are set on the light guide cover, the PCB circuit board is fixed under the light guide cover, and the bottom shell is screwed and fixed under the light guide cover. The color liquid crystal screen described above shows driving speed and mileage, and the segment code screen displays the first indicator light group and the second indicator light group respectively on both sides of the color liquid crystal screen.

The integrated circuit structure of the PCB circuit board includes: a voltage stabilizing circuit connected to a power supply, sequentially passing through a transfer switch, a plurality of sensors, a protection circuit, a filter circuit, a DC-DC converter, a connecting segment code screen and a driver of a color LCD screen The module and the display screen, the circuit is also connected to the first indicator light group and the second indicator light group.

The first indicator light group includes: left turn indicator light, right turn indicator light, front fog light indicator light, rear fog light indicator light, high beam light indicator light, low beam light light indicator light, position light light indicator light, fuel alarm Indicator light, water temperature alarm indicator light, engine anti-theft indicator light, body anti-theft indicator light, door open alarm indicator light, brake system fault indicator light, battery charging indicator light, handbrake indicator light.

The second indicator light group includes: malfunction indicator light, EPS work failure indicator light, ABS indicator light, start-stop system failure indicator light, tire pressure monitoring failure indicator light, gearbox failure indicator light, cruise indicator light, seat belt Not fastened indicator light, engine oil pressure indicator light, auxiliary seat belt not fastened indicator light.

Light-emitting diodes are correspondingly arranged at the light guide holes.

A segment code screen limit washer is also arranged under the segment code screen in the mouth of the light guide cover.

Because the utility model adopts the color liquid crystal screen and the segment code screen to be superimposed and assembled together, the combined display of various indicators and functions of the car has a simple structure, no pointer and a transmission motor, the circuit is safer and more reliable, and it is shock-resistant, which is better than that of the same color full LCD. The screen instrument saves 60% of the manufacturing cost. The circuit principle of the utility model is advanced with a main chip IC, a voltage stabilizing chip WC, various protection circuits, a filter circuit, a DC-DC conversion circuit, etc., and a loudspeaker is provided to send out a warning voice when an alarm is issued. The utility model is connected with the power supply in the car, and can connect the sensor power supply of each part on the car and the transfer switch with the circuit board. The transfer switch can switch various modes displayed by the instrument, such as traditional mode or modern segment code expression form.

The present invention will be described in further detail below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a front view of the utility model;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is a side view of Fig. 2;

Fig. 4 is the bottom view of Fig. 1;

Fig. 5 is a disassembled diagram of the utility model assembly;

Figure 6 is an electrical schematic diagram.

detailed description

As shown in the figure, a dual-screen superimposed combination color full liquid crystal display automotive instrument of the present invention includes: instrument cover 1, screen ring 2, segment code screen 5, color liquid crystal screen 6, light guide cover 3, PCB circuit board 8 and Bottom shell 9, the instrument cover is detachably arranged on the screen ring, the lower part of the screen ring is firmly connected with the light guide cover, a groove is arranged on the light guide cover, the color LCD screen is detachably arranged in the groove, and the upper periphery of the light guide cover Set the sub-port, set the segment code screen in the sub-port, the segment code screen covers the color LCD screen, set a number of light guide holes 7 on the light guide cover, the PCB circuit board is fixed under the light guide cover, and the bottom of the light guide cover is screwed and fixed. Shell, the color LCD screen displays the driving speed and mileage, and the segment code screen displays the first indicator light group and the second indicator light group respectively on both sides of the color LCD screen.

The integrated circuit structure of the PCB circuit board includes: a voltage stabilizing circuit connected to a power supply, sequentially passing through a transfer switch, a plurality of sensors, a protection circuit, a filter circuit, a DC-DC converter, a connecting segment code screen and a driver of a color LCD screen The module and the display screen, the circuit is also connected to the first indicator light group and the second indicator light group.

The first indicator light group includes: left turn indicator light, right turn indicator light, front fog light indicator light, rear fog light indicator light, high beam light indicator light, low beam light light indicator light, position light light indicator light, fuel alarm Indicator light, water temperature alarm indicator light, engine anti-theft indicator light, body anti-theft indicator light, door open alarm indicator light, brake system fault indicator light, battery charging indicator light, handbrake indicator light.

The second indicator light group includes: malfunction indicator light, EPS work failure indicator light, ABS indicator light, start-stop system failure indicator light, tire pressure monitoring failure indicator light, gearbox failure indicator light, cruise indicator light, seat belt Not fastened indicator light, engine oil pressure indicator light, auxiliary seat belt not fastened indicator light.

Light-emitting diodes are correspondingly arranged at the light guide holes.

A segment code screen limit washer 4 is also arranged under the segment code screen in the mouth of the light guide cover.

Number 11 among the figure is a fixed connecting plate.

Claims (6)

1. A dual-screen superimposed combination color full liquid crystal display automotive instrument, including: instrument cover (1), screen ring (2), segment code screen (5), color LCD screen (6), light guide cover (3), The PCB circuit board (8) and the bottom case (9) are characterized in that: the instrument cover is detachably arranged on the screen ring, the screen ring is firmly connected with the light guide cover, grooves are set on the light guide cover, and the color LCD screen It can be detachably installed in the groove, and the upper periphery of the light guide cover is provided with a sub-port, and a segment code screen is arranged in the sub-port, and the segment code screen covers the color LCD screen, and several light guide holes (7) are set on the light guide cover, and the PCB circuit board is fixed. Under the light guide cover, the bottom shell is screwed and fixed under the light guide cover. The color LCD screen displays the driving speed and mileage. LED group. 2. A kind of dual-screen superimposed combined color full liquid crystal display automotive instrument according to claim 1, characterized in that: the integrated circuit structure of the PCB circuit board includes: a voltage stabilizing circuit connected to a power supply, through a transfer switch, A plurality of sensors, a protection circuit, a filter circuit, a DC-DC converter, a drive module and a display screen connected to a segment code screen and a color LCD screen, and the circuit is also connected to the first indicator light group and the second indicator light group. 3. A dual-screen superimposed combination color full liquid crystal display automotive instrument according to claim 1, characterized in that: said first indicator light group includes: left turn indicator light, right turn indicator light, front fog light indicator light , rear fog light indicator, high beam indicator light, low beam light indicator light, position light indicator light, fuel warning light, water temperature warning light, engine anti-theft light, body anti-theft light, door open warning light, Braking system fault indicator light, battery charging indicator light, handbrake indicator light. 4. A dual-screen superimposed combination color full liquid crystal display automotive instrument according to claim 1, characterized in that: the second indicator light group includes: a fault indicator light, an EPS working fault indicator light, an ABS indicator light, Start-stop system fault indicator, tire pressure monitoring fault indicator, gearbox fault indicator, cruise indicator, seat belt not fastened indicator, oil pressure indicator, auxiliary seat belt not fastened indicator. 5 . The dual-screen superimposed and combined color full liquid crystal display automotive instrument according to claim 1 , wherein light-emitting diodes are correspondingly arranged at the light guide holes. 6 . 6. A double-screen superimposed combination color full liquid crystal display automotive instrument according to claim 1, characterized in that: a segment code screen limit washer (4) is also arranged under the segment code screen in the mouth of the light guide cover .