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an electric curtain

A curtain and electric technology, applied in circuit layout, projection device, lighting and heating equipment, etc., can solve the problem of single function, achieve the effect of simple control method and improved function

Active Publication Date: 2018-05-22
盐城鹤鸣亭传媒股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in order to solve the problems existing in the above-mentioned background technology, an improved electric screen is provided to solve the problem that the current projection screen only has the function of retracting the screen, and the functionality is very single

Method used

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  • an electric curtain
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0015] Embodiment: The upper left metal connection plate 18 is connected to the neutral line of the external power supply line 1 through the power connection line inside the outer box body 2, and the upper right metal connection plate 19 is output to the right push switch 21 through the power connection line inside the outer box body 2 The input end of the right push switch 21 is connected with the live wire of the external power supply line 1, the lower left metal connecting plate 16 passes through the joint with the upper left metal connecting plate 18, and the lower right metal connecting plate 17 passes through the phase with the upper right metal connecting plate 19 The connection makes the external power supply line 1, the LED panel light 11 and the right push switch 21 form a first series circuit, and the right push switch 21 forms a path through the first series circuit due to extrusion. In the first series circuit, the right push switch 21 The switch 21 is in an open c...

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PUM

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Abstract

The invention relates to the technical field of projection devices, and particularly relates to an electric curtain which comprises an electric curtain body and an external power supply line. The electric curtain body comprises an outer case body in which a storage chamber and a transmission chamber are arranged. According to the electric curtain provided by the invention, an LED flat lamp used for illuminating is arranged at the bottom of a counterweight plate; upper metal connection plates on both side walls of a left opening contact lower metal connection plates on both sides of the upper end of the counterweight plate; the external power supply line and the LED flat lamp form a series access, so that the stored electric curtain forms a high illuminating lamp; the functionality of the electric curtain is greatly enhanced; the counterweight plate automatically change closed and short circuit states; the turnoff of a small slow motor is controlled; and the control method is very simple.

Description

technical field [0001] The invention relates to the technical field of projection equipment, in particular to an electric screen. Background technique [0002] Projection screens are used in movies, offices, home theaters, and large conferences. The tool used to display images and video files needs to be used in conjunction with a projector. Projection screens are also called projection screens. They are generally divided into commercial screens, household screens, and engineering screens. The current projection screen mainly adopts the method of rolling and storing the screen driven by the roller blind to realize the retraction of the screen, which only has the function of retracting the screen, and the functionality is very single. Contents of the invention [0003] The technical problem to be solved by the present invention is: in order to solve the problems existing in the above-mentioned background technology, an improved motorized screen is provided to solve the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/58F21V33/00F21V23/06F21V23/04F21Y115/10
CPCF21V23/04F21V23/06F21V33/0052G03B21/58
Inventor 袁敏
Owner 盐城鹤鸣亭传媒股份有限公司