CN201562762U

CN201562762U - Wire terminal board of teacher's desk in classroom

Info

Publication number: CN201562762U
Application number: CN2009202810296U
Authority: CN
Inventors: 许炳章
Original assignee: ZIBO ZHENGCAI ELECTRIC TECHNOLOGY Co Ltd
Current assignee: ZIBO ZHENGCAI ELECTRIC TECHNOLOGY Co Ltd
Priority date: 2009-12-14
Filing date: 2009-12-14
Publication date: 2010-08-25
Anticipated expiration: 2019-12-14

Abstract

The utility model relates to a wire terminal board of a teacher's desk in a classroom, which comprises a PCB and wire terminals arranged on the PCB. The wire terminal board is characterized in that the wire terminals include an input power wire terminal, a grounding wire terminal, a monitoring equipment wire terminal, an external power supply wire terminal, a sound box wire terminal, a projector wire terminal, a projector jumper terminal, an electric screen wire terminal, an electric screen lifting/falling wire terminal, a mechanical switch and a power switch wire terminal. The power supplies to the normally power-on equipment and the normally power-off equipment are independently controlled by switching on or off the power switch. The wire terminal board fills the blank of professional wiring, control and operating equipment for the multimedia equipment, and has the advantages of simple structure, low cost and flexible and convenient use.

Description

Classroom lectern terminal board

Technical field

The utility model belongs to integrated and a kind of parts of control classroom multimedia teaching facility, is specifically related to a kind of classroom lectern terminal board.

Background technology

Along with after equipment such as computer, projector or various television set, sound equipment, electronics invigilator enter the classroom in succession, the wiring of these equipment, control and operation need a good integrated platform.The supply socket reply that the usefulness that this integrated platform has is common, the control machine is served as in the usefulness that has.The former shortcoming is that the various confusion of wiring, failure rate are high; The latter's deficiency is the signal handoff functionality redundancy of several equipment, even the operation that a mechanical switch just can be finished, and is made as an electronic switch and adds an electromagnetic switch and finish.This has just increased the failure rate of system undoubtedly.

The utility model content

The utility model is to solve the defective that the prior art multimedia equipment does not have specialized wiring, control and operating equipment, provides a kind of simple in structure, and cost is low, the classroom lectern terminal board of being convenient to operate.

The utility model is achieved through the following technical solutions:

It is a kind of classroom lectern terminal board, comprise pcb board, pcb board is provided with binding post, it is characterized in that described binding post comprises input electric connecting terminals, ground wire terminal, watch-dog binding post, externally power binding post, audio amplifier binding post, projector's binding post, electronic screen binding post, electronic screen lifting binding post.

Be provided with the mains switch binding post between input electric connecting terminals and external power supply binding post, electronic screen binding post, audio amplifier binding post, the electronic screen lifting binding post, be provided with mechanical switch between described mains switch binding post and the electronic screen lifting binding post.By the break-make of mechanical switch control mains switch binding post, normal open electricity in the classroom can be controlled respectively with the power supply of the equipment of seldom switching on.

Also be provided with projector's jumper terminal on the pcb board.By the wire jumper setting, self can not jumped into the normal open electricity condition with the projector of power-off protection, projector's jumping of self being with power-off protection is switch control energising, also can insert the projector protection device at this wire jumper place.

Externally the power supply binding post is 1 ~ 3.Connect various insert rows by external power supply binding post, can connection multimedia equipment as much as possible.

The utlity model has simple in structure, cost is low, use flexibly, advantage easily.The utility model is compared with middle control machine, complicated electronic component and electromagnetic switch omitted, and the break-make of cooperative mechanical ON-OFF control circuit, simple and reliable, cheap.The side connecting conductor formula of same socket, plug is compared, and not only much but also more random lead micro on the fritter PCB circuit board, is convenient to operate and be difficult for breaking down.Each binding post of the present utility model is the closed or semi-enclosed binding post of prior art, can increase or reduce corresponding binding post according to actual needs, and the utility model is mainly used in the lectern in the classroom that is equipped with multimedia teaching facility.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the inner trace-diagram of the utility model.

As shown in FIG.: the 1PCB plate; 2 external power supply binding posts; 3 ground wire terminals; 4 input electric connecting terminals; 5 projector's wire jumper binding posts; 6 external power supply binding posts; 7 electronic screen binding posts; 8 audio amplifier binding posts; 9 installing holes; 10 electronic screen lifting binding posts; 11 mechanical switchs; 12 mains switch binding posts; 13 projector's binding posts; 14 watch-dog binding posts; 15 external power supply binding posts.Solid wire among Fig. 2 is the front cabling, and tubular wire is a back side cabling.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is further elaborated.

As shown in Figure 1, pcb board 1 is provided with external power supply binding post 2, ground wire terminal 3, input electric connecting terminals 4, projector's wire jumper binding post 5, externally power binding post 6, electronic screen binding post 7, audio amplifier binding post 8, electronic screen lifting binding post 10, projector's binding post 13, watch-dog binding post 14, the external binding post 15 of powering.Be provided with the mains switch binding post between input electric connecting terminals 4 and external power supply binding post 6, electronic screen binding post 7, audio amplifier binding post 8, the electronic screen lifting binding post 10, be provided with mechanical switch 11 between described mains switch binding post and the electronic screen lifting binding post.Be provided with mechanical switch 11 between mains switch binding post 12 and the electronic screen lifting binding post 10, it is single-way switch that mechanical switch is positioned at motor switch binding post 12 1 sides, and being positioned at electronic screen lifting binding post 10 1 sides is bidirectional switchs.

When the utility model uses; by 3 installing holes 9 pcb board is fixed in the lectern; to import electric connecting terminals 4 is electrically connected with input; external power supply binding post 2; external power supply binding post 6; externally power supply binding post 15 connects respectively at external socket; can connect computer on the external socket; the VGA distributor; display; video presenter; video server; multimedia equipments such as switch; projector's binding post 13 is connected with projector; wire jumper setting by projector's wire jumper binding post 5; self can not jumped into the normal open electricity condition with the projector of power-off protection; projector's jumping of self being with power-off protection is switch control energising, also can insert the projector protection device at this wire jumper place.Electronic screen is connected with electronic screen binding post 7, and watch-dog, audio amplifier connect respectively at watch-dog binding post 14, audio amplifier binding post 8.

Solid wire front cabling among Fig. 2, solid wire is the copper-clad plate printed circuit; Tubular wire is a back side cabling, and tubular wire is copper-clad plate printed circuit or the sub-thread copper conductor for welding.

The utility model is not limited to above embodiment, can change as the position of each binding post, and the quantity of the binding post of externally powering also can be changed as required.

Claims

1. classroom lectern terminal board, comprise pcb board, pcb board is provided with binding post, it is characterized in that described binding post comprises input electric connecting terminals, ground wire terminal, watch-dog binding post, externally power binding post, audio amplifier binding post, projector's binding post, electronic screen binding post, electronic screen lifting binding post.

2. teacher's lectern terminal board according to claim 1, it is characterized in that importing electric connecting terminals and externally be provided with the mains switch binding post between power supply binding post, electronic screen binding post, audio amplifier binding post, the electronic screen lifting binding post, be provided with mechanical switch between described mains switch binding post and the electronic screen lifting binding post.

3. classroom according to claim 1 lectern terminal board is characterized in that also being provided with on the pcb board projector's jumper terminal.

4. teacher's lectern terminal board according to claim 1 is characterized in that described external power supply binding post is 1 ~ 3.