LCD screen switch of onboard TV set

A technology for liquid crystal screens and televisions, applied in the field of flip position detection switches, which can solve problems such as inaccurate positioning accuracy, vulnerable contacts, damage to the liquid crystal screen, etc., and achieve the effects of reliable contact, avoiding assembly errors, and eliminating gaps

Inactive Publication Date: 2007-12-12
XIAMEN INTRETECH AUTOMOTIVE ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The in-position switch used as the flip angle positioning generally adopts a commercially available single-type mechanical switch or a power-off switch. This type of switch is easily damaged by impact under the conditions of severe vibration during vehicle driving, and has a high failure rate and low positioning accuracy. Inaccurate
Especially when the in-position switch is not in good contact or the in-position switch does not work properly due to positioning errors, the continuous rotation of the DC geared motor will cause damage to the entire LCD screen

Method used

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  • LCD screen switch of onboard TV set
  • LCD screen switch of onboard TV set
  • LCD screen switch of onboard TV set

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The unfolded structure of an optimized embodiment of the liquid crystal screen in-position switch of the vehicle-mounted TV set of the present invention is shown in FIG. 1 . The in-position switch of the LCD screen of the vehicle-mounted TV is made up of the following parts: open the in-position detection sheet 1, close the in-position detection sheet 2, the fixed frame 3, the shock absorbing pad 4 and the conductive boss 52 on the rotating bracket 5.

[0022] Open the detection piece 1 in place and is a conductive plate made of non-rusting conductive material. In order to be fixed on the fixed frame 3, its waist is provided with two screw holes 11. As the switch fixed contact of the liquid crystal screen opening position, one end of it is connected with the liquid crystal screen opening position detection terminal of the vehicle-mounted TV control board through a flexible wire.

[0023] Closing the detection piece 2 in place is a conductive plate made of non-rusting co...

Embodiment 2

[0035] The unfolded structure of another embodiment of the liquid crystal screen in-position switch of the vehicle-mounted TV set of the present invention is shown in FIG. 5 . The in-position switch of the LCD screen of the vehicle-mounted TV is made up of the following components: open the in-position detection sheet 1', close the in-position detection sheet 2', the conductive boss 52' on the fixed frame 3' and the rotating bracket 5'.

[0036] The detection sheet 1' is a conductive plate made of non-rusting conductive material, which is used as a fixed contact of the switch for the liquid crystal screen to be opened in place. .

[0037] Closed in place detection sheet 2' is a conductive plate made of non-rusting conductive material, which is used as a fixed contact for the liquid crystal screen closed in place, and one end of it is closed in place with the liquid crystal screen of the vehicle-mounted TV control panel through a flexible wire Detection end connection.

[003...

Embodiment 3

[0045] Another embodiment of the unfolded structure of the liquid crystal screen in-position switch of the vehicle-mounted TV set of the present invention is shown in FIG. 7 . The in-position switch of the liquid crystal screen of this vehicle-mounted TV is made up of following parts: open the in-place detection sheet 1 ", close the in-place detection sheet 2 ", the conductive boss 52 " on the fixed mount 3 " and the rotating bracket 5 ".

[0046] Open-in-place detection sheet 1″ is a conductive plate made of non-rusting conductive material, which is used as a fixed contact for the LCD screen to open in place, and one end of it is connected to the LCD screen in-position detection terminal of the vehicle-mounted TV control panel through a flexible wire .

[0047] Closed in place detection sheet 2″ is a conductive plate made of non-rusting conductive material, which is used as a fixed contact for the liquid crystal screen closed in place, and one end of it is closed in place wit...

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Abstract

The invention is LCD screen switch of vehicle TV set, it relates to retroflexion position detecting switch used in vehicle LCD TV set. It possesses a bottom connected with the LCD screen which is fixed to rotary bracket of output axes of motor; motor and insulated rigid fixation bracket are fixed to the TV set; the rotary bracket possesses a conducting boss which is the acting arm of the switch; two conducting boards which are two acting contactors are fixed to surface of movement track to conducting boss; two conducting boards are separately at two sides of the rotary bracket, they match with the conducting boss to limit rotary angle range of rotary bracket, the conducting boss resists one conducting board when the LCD screen is open, the conducting boss resists the another conducting board when the LCD screen is closed. It can resolve problem that the contact is unreliable, and precision of positioning is low of monomer-type switch.

Description

technical field [0001] The invention relates to a flip position detection switch used in a vehicle-mounted liquid crystal television. Background technique [0002] In order to make the interior of the car have a good visual effect and cleanliness, the LCD screen of the vehicle-mounted LCD TV is usually designed to be flipped. The bottom of the liquid crystal screen is fixed on the rotating bracket, and the rotating bracket is fixed on the output shaft of the DC reduction motor formed by the DC motor and the reduction box. When you need to watch TV programs, turn the LCD screen from the TV body (hereinafter referred to as “opening”), and display it roughly vertically in front of passengers; when you don’t need to watch TV programs, turn the LCD screen back to on the main body of the TV (hereafter referred to as “closed”). The turning motion of the LCD screen is powered by the DC geared motor, and the in-position judgment signal for the opening and turning back angle positio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H19/36H01H19/38H01H3/26G05D3/00G01B7/30G12B9/08G12B9/10
Inventor 巫华志邓建明
Owner XIAMEN INTRETECH AUTOMOTIVE ELECTRONICS CO LTD
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