CN209803732U - Interactive intelligent tablet - Google Patents

Abstract

The utility model relates to an mutual intelligence is dull and stereotyped. Mutual intelligence flat board, including shell and fixed mounting in the display screen on shell surface, be equipped with power module in the shell, the shell is formed with the power connection structure who is connected with outside alternating current power supply, power connection structure includes live wire binding post, zero line binding post and ground wire binding post, the live wire terminal with the zero line terminal with power module connects, ground wire binding post through first switch with the shell is connected. Mutual intelligence flat board, thereby can be when mains supply is not carried power supply interference signal by good ground connection, cut off intelligent dull and stereotyped shell and mains supply ground wire between be connected to get rid of interference signal.

Description

Interactive intelligent tablet

Technical Field

The utility model relates to a display device technical field especially relates to an interactive intelligence is dull and stereotyped.

Background

The intelligent interactive flat panel is integrated equipment for controlling contents displayed on a display flat panel (LCD, LED and PDP) and realizing man-machine interactive operation by a touch technology, takes a high-definition liquid crystal display as a display and operation platform, has the functions of writing, commenting, drawing, multimedia entertainment, network conference and the like, integrates a plurality of technologies of man-machine interaction, flat panel display, multimedia information processing, network transmission and the like, and is widely applied to the fields of education and teaching, enterprise conferences, commercial exhibition and the like.

Under complicated mains supply environment, the interference from the mains supply often can cause the trip point problem of high definition LCD screen, influences user experience, and when mains supply's ground wire is not well ground connection, often can carry power interfering signal to cause the trip point problem of high definition LCD screen, and this problem is difficult to detect and handle at present.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing an interactive intelligence is dull and stereotyped, thereby it can be when mains supply is not carried power supply interference signal by good ground connection, cut off the connection between intelligent dull and stereotyped shell and the mains supply ground wire to get rid of interference signal.

The utility model discloses a through following scheme implementation:

the utility model provides an interactive intelligence is dull and stereotyped, includes shell and fixed mounting in the display screen of shell front side, still be equipped with power module in the shell, the shell is formed with the power connection structure who is connected with outside alternating current power supply, power connection structure includes live wire binding post, zero line binding post and ground wire binding post, live wire binding post with zero line binding post with power module connects, ground wire binding post through first switch with the shell is connected.

Mutual intelligence flat board, thereby when mains supply is not carried power interference signal by good ground connection, can pass through the disconnection through setting up first switch between ground wire binding post and the shell at the power connection structure who is connected with outside alternating current power supply the first switch cuts off being connected between intelligent dull and stereotyped shell and the mains supply ground wire to get rid of interference signal.

Further, in order to facilitate the operation of the user, the first switch is a button-type switch and is disposed on the surface of the housing.

Furthermore, in order to accurately judge whether the ground wire of the external alternating current power supply is grounded, the grounding detection circuit comprises a direct current power supply generating circuit and a reminding element which are connected in series, one end of the reminding element is connected to the output end of the direct current power supply generating circuit, the other end of the reminding element is connected to the shell, and the input end of the direct current power supply generating circuit is connected to the live wire of the alternating current power supply input to the power supply module by the power supply connecting structure.

further, the direct current power supply generating circuit is a half-wave rectifying circuit or a rectifier.

Further, the reminding element is an LED lamp arranged on the surface of the shell.

Further, the LED warning device further comprises a second switch used for realizing connection or disconnection of an external power supply and the power supply module, the second switch is arranged on the surface of the shell, and the warning element is an LED lamp arranged on the second switch.

further, the second switch include with power connection structure's live wire input and with the live wire output that power module connects, DC power supply generating circuit's input is connected to the live wire output to only when mutual dull and stereotyped circular telegram of intelligence, just detect whether the shell is ground connection.

Further, the dc power generating circuit is integrated with the power module or the second switch.

Further, the second switch is disposed at a rear side surface of the housing.

Furthermore, the live wire connecting terminal and the zero line connecting terminal are connected with the power module through a common-mode inductor.

For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a diagram of an interactive smart tablet architecture in one embodiment;

FIG. 2 is a schematic diagram of an interactive smart tablet power and ground connection configuration in accordance with an embodiment;

FIG. 3 is a schematic diagram of an interactive smart tablet power and ground connection configuration in accordance with an embodiment;

FIG. 4 is a schematic diagram of an interactive smart tablet power and ground connection configuration in accordance with an embodiment;

fig. 5 is a circuit schematic of a second switch in one embodiment.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

referring to fig. 1 and fig. 2, in an embodiment, the interactive smart tablet 100 of the present invention includes a housing 110 and a display screen 120 fixedly mounted on a front side of the housing 110, preferably, the display screen 120 is a touch display screen. An integrated circuit board for controlling the display of the display screen 120 and a power module 130 for providing power to the interactive smart tablet 100 are disposed in the housing 110, and in some embodiments, the power module 130 may be a stand-alone power module or a power module integrated on the integrated circuit board. The housing 110 is further formed with a power connection structure 140 for connecting to an external ac power source, and in some embodiments, the power connection structure 140 may be a three-hole socket on the surface of the housing 110 or a three-hole plug led out from the housing 110.

Power connection structure 140 includes live wire binding post, zero line binding post and ground wire binding post, live wire binding post with zero line binding post is connected to respectively power module 130 to introduce external alternating current power supply power module 140. The ground wire terminal is connected to the housing 110 through the first switch 150, the first switch 150 may be a button-type switch, and in some application scenarios, the first switch 150 may also be a boat-type switch. The first switch 150 may be disposed on a surface of the housing 110, and in some scenarios, the first switch may be particularly disposed on a side, a back, or a bottom of the housing 110 in order not to affect a user experience.

The working principle of the embodiment is as follows:

The power connection structure 140 is connected to an external ac power supply, so that the power module 130 is connected to the external ac power supply and provides a working power supply for the interactive smart tablet 100, when a ground terminal of the external ac power supply is not well grounded and carries a power interference signal, a high-definition liquid crystal screen trip point problem is often caused, and at this time, a user disconnects the first switch 150, and disconnects the ground wire of the external ac power supply by disconnecting the housing 110 from the ground wire of the external ac power supply, so as to disconnect the power interference signal.

In order to accurately determine whether the ground line of the external ac power source is grounded, referring to fig. 3, in an embodiment, the external ac power source further includes a ground detection circuit for detecting whether the housing is grounded, the ground detection circuit includes a diode D1, a resistor R1, and an LED lamp D2 that are sequentially connected in series, the diode D1 and the resistor R1 form a half-wave rectification circuit, and in some scenarios, the diode D1 and the resistor R1 may also be other dc power source generation circuits, such as a rectifier. The diode D1 has an anode connected to the hot line of the ac power inputted to the power module 130 from the power connection structure 140, a cathode connected to one end of the LED lamp D2 through the resistor R1, and the other end of the LED lamp D2 connected to the housing 110. The LED lamp D2 may be disposed on the surface or inside of the housing 110. In some scenarios, the LED light D2 may also be other alert elements such as a buzzer or other alert device.

The diode D1 and the resistor R1 as the dc power generating circuit may be integrated on the power module 130, or may be separately disposed or integrated on other functional modules of the interactive smart tablet 100.

The diode D1 of the present embodiment converts ac power into dc power, and if the housing 110 is well grounded by an external ac power, a potential difference is formed between both ends of the LED lamp D2, and the LED lamp D2 emits light, and if the housing 110 is not grounded by an external ac power, the LED lamp D2 does not emit light.

In an embodiment, referring to fig. 4 and 5, the interactive smart tablet 100 further includes a second switch 160 for connecting or disconnecting an external power source to or from the power module, the live wire terminal and the neutral wire terminal of the power connection structure 140 are connected to the power module 130 through the second switch 160, the second switch 160 is a boat-shaped switch, in some scenarios, the second switch 160 may also be a button-shaped switch or other type of switch, and the second switch 160 may be disposed on a rear side surface or a side surface of the housing 110. The second switch 160 includes a live wire input terminal 4 and a neutral wire input terminal 2 respectively connected to the live wire connection terminal and the neutral wire connection terminal of the power connection structure 140, and a live wire output terminal 3 and a neutral wire output terminal 1 respectively connected to the power module 130.

preferably, the input terminal of the diode D1 is connected to the live output terminal of the second switch 160, so that it is detected whether the housing is grounded or not, and the LED lamp D2 is integrated on the second switch 160, only when the interactive smart tablet 100 is powered on.

One end of the LED lamp D2 is connected to the resistor R1 through the terminal 5 of the second switch 160, and the other end is connected to the housing 110 through the terminal 6 of the second switch. When the second switch 160 is turned off, the terminals 1-2, 3-4 and 5-6 are turned off, and when the second switch 160 is turned on, the terminals 1-2, 3-4 and 5-6 are turned on.

in some scenarios, the diode D1 and the resistor R1 as the dc power generating circuit may also be integrated on the second switch 160.

In some scenarios, the second switch 160 or the power connection structure 140 may also be connected to the power module 130 through a common-mode inductor L1, the common-mode inductor L1 is used to remove interference on the live line and the neutral line of the external ac power source, and preferably, the inductance of the common-mode inductor L1 is greater than or equal to 200mH 30 KHz.

the working principle of the embodiment is as follows:

After the power connection structure 140 is connected to an external ac power source and the second switch 160 is closed, the power module 130 connects the external ac power source and provides a working power source for the interactive intelligent tablet 100, when a ground terminal of the external ac power source is not well grounded and carries a power interference signal, there is no potential difference between two terminals of the LED lamp D2, the LED lamp D2 does not emit light, and a user can cut off the connection between the housing 110 and a ground line of the external ac power source by opening the first switch 150, thereby cutting off the power interference signal; when the grounding end of the external alternating current power supply is well grounded, a potential difference is formed between two ends of the LED lamp D2, and the LED lamp D2 emits light.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims (10)

1. the utility model provides an interactive intelligence is dull and stereotyped, includes shell and fixed mounting in the display screen of shell front side, still be equipped with power module in the shell, its characterized in that:

The shell is formed with the power connection structure who is connected with outside alternating current power supply, power connection structure includes live wire binding post, zero line binding post and ground wire binding post, live wire binding post with zero line binding post with power module connects, ground wire binding post through first switch with the shell is connected.

2. The interactive smart tablet of claim 1, wherein:

The first switch is a button-type switch and is arranged on the surface of the shell.

3. The interactive smart tablet of claim 1, wherein:

still include ground connection detection circuitry, ground connection detection circuitry is including the DC power supply generating circuit who establishes ties and reminds the component, the one end of reminding the component is connected to DC power supply generating circuit's output, the other end is connected to the shell, DC power supply generating circuit's input be connected to by power connection structure input power module's alternating current power supply's live wire.

4. The interactive smart tablet of claim 3, wherein:

the direct current power supply generating circuit is a half-wave rectifying circuit or a rectifier.

5. The interactive smart tablet of claim 3 or 4, wherein:

The reminding element is an LED lamp arranged on the surface of the shell.

6. The interactive smart tablet of claim 4, wherein:

The LED lamp is characterized by further comprising a second switch used for realizing the connection or disconnection of an external power supply and the power supply module, the second switch is arranged on the surface of the shell, and the reminding element is an LED lamp arranged on the second switch.

7. The interactive smart tablet of claim 6, wherein:

the second switch include with power connection structure's live wire input and with the live wire output that power module connects, DC power supply generating circuit's input is connected to the live wire output.

8. The interactive smart tablet of claim 6, wherein:

the direct current power supply generating circuit is integrated on the power supply module or the second switch.

9. The interactive smart tablet of claim 6, wherein:

the second switch is disposed on a rear side surface of the housing.

10. The interactive smart tablet of claim 1, wherein:

and the live wire connecting terminal and the zero line connecting terminal are connected with the power module through a common-mode inductor.