CN201378367Y

CN201378367Y - Electronic experimental box

Info

Publication number: CN201378367Y
Application number: CN200920002643U
Authority: CN
Inventors: 严天峰; 王瑞峰; 苗新法; 王耀琦
Original assignee: LANZHOU ZHONGSHITONG ELECTRONICS TECHNOLOGY Co Ltd
Current assignee: LANZHOU ZHONGSHITONG ELECTRONICS TECHNOLOGY Co Ltd
Priority date: 2009-02-20
Filing date: 2009-02-20
Publication date: 2010-01-06
Anticipated expiration: 2019-02-20

Abstract

The utility model provides an electronic experimental box which comprises a machine box, a bottom plate, a 220V AC supply external circuit, a transformer and M independent functional modules, wherein the bottom plate is provided with a printed circuit; a front panel of the bottom plate is divided into N module regions; each module region is respectively provided with a pinhole type socket; insert pin corresponding to the positions of the pinhole type sockets are arranged under each functional module; one functional module is connected on each pinhole type socket in a removable insertion mode; and the functional modules comprise necessary power supply models, optional basic modules and improving modules. The utility model adopts the open type independent module structure, and has the advantages of convenient disassembly, assembly, debugging and maintenance. Each functional module can be interchanged or upgraded according to the practical situations. Various experiments can be accomplished by one experimental box. The utility model integrates a downloading programmer, an experimental development plate and practical peripheral equipment into a whole body, and saves the cost. During training or examination, the unit module circuit can not be damaged, the operability is high, and the electronic experimental box can be repeatedly used after being bought once by users.

Description

The electronic experiment case

Technical field

The utility model relates to electronic instruction and Electronics Engineer's authentication apparatus technical field, is a kind of electronic experiment case specifically.

Background technology

Chinese Institute of Electronics promotes Electronics Engineer's authentication item in the whole nation, it is that experimental box is done support that its real training partly needs hardware platform, will be core with the single-chip microcomputer according to this platform that requires of institute of electronics.The single-chip microcomputer application technology is a subject that practicality is very strong, and integrating theory with practice is best and learning method the most efficiently.At present, the single chip computer experiment box structure on the market is fixed, function singleness, and experimental box is typing in a single day, and the experiment that can develop is also fixing thereupon, and experimental project is limited; And, the experimental box complex structure, difficulty is all compared in debugging, maintenance, maintenance, can not be directly used in the Electronics Engineer and authenticate.Single chip computer experiment case hardware configuration falls behind, and expands to the master with parallel, and majority is inapplicable in actual at the scene the use, can not make student or user can be rapidly and market integrate with.In a single day existing experimental box has chip to damage, and searches, verifies, changes and all compare difficulty, particularly the chip that encapsulates for paster.And, the most development schemes that adopt programmable device+emulator of existing experimental box, increase user's purchase cost, and emulation experiment can not complete simulation chip operation actual conditions.

The utility model content

It is many that technical problem to be solved in the utility model provides a kind of experiential function, simple in structure, easy to operate electronic experiment case.

It is as follows that the utility model solves the problems of the technologies described above the technical scheme that is adopted:

A kind of electronic experiment case comprises cabinet, is provided with base plate, 220V AC power external circuits, the transformer of P.e.c.; It is characterized in that: it also comprises M independently functional module; The front panel of base plate (promptly towards this last face) is divided into N block region, and each block region is respectively equipped with the pin socket; Be provided with the pin type latch corresponding below each functional module with the pin socket position; Be connected with a functional module with the grafting removably on each pin socket, functional module comprises necessary power module, selectable basic module and improves module.

Cabinet of the present utility model adopts standard PC case, and base plate is for adopting the printed circuit board (PCB) of preferred circuit design; The pin socket is connected with base plate function corresponding lead-in wire.

Basic module comprises single chip processing module, AD+DA module, signal condition module, communication and ISP download module, Keysheet module, 8155 parallel port expansion modules, display module; Utilize basic module can finish that the Electronics Engineer authenticates and student's study course requires the infrastest that reaches.

Improve module and comprise relay/infrared/IO module, I ²C interface module, wireless remote control module, 232/485 modular converter, CAN interface module, usb interface module.

The utility model is equipped with the experimental box instructions, and user's indication operation to specifications just can be finished experiment easily.

Be based on single-chip microcomputer undergraduate course syllabus in the utility model design, the single-chip microcomputer application and development reality of combining closely adopts modularization to peg graft, and has very strong module combinations and extended capability, makes the single chip computer teaching experiment step into the new stage of " designability experiment ".Because of the utility model adopts open standalone module structure, can easy disassembly, debugging and maintenance; Each functional module can be exchanged or upgrades according to actual conditions.Because of base plate and cabinet employing preferred circuit design, the user only needs single purchase; Basic module and raising module can be selected flexibly according to the experiment needs, use an experimental box just can finish multinomial experiment; Collection is downloaded programmable device, pilot development plate, the practical outer one that is made as, and saves cost.When training or examination, can not destroy the unit module circuit.Only need during examination to set a question by different wire jumpers, strong operability, the user of unit once just can be repeatedly used as long as buy.

The utility model expands to the master towards the commercial Application scene with serial, comprises I ²C, SPI, USB etc., selected chip is device commonly used, easy-to-use, moderate, that function is moderate, these devices all be at present at the scene in a large amount of devices that use; These device data are full and accurate, are easy to search.The utility model is transported to the functional module relevant position to corresponding signal from printed circuit board (PCB) by the double pin socket that base plate is provided with above, and functional module and developable experiment are grasped by experimenter oneself fully.

Description of drawings

Fig. 1 is an agent structure synoptic diagram of the present utility model;

Fig. 2 is the front panel structural representation of base plate;

Fig. 3 is the structural representation of a block region of base plate;

The structural representation of a functional module of Fig. 4;

Fig. 5 is the left view of Fig. 4;

Fig. 6 is the module diagram that has pulled out a contact pin;

Fig. 7 is the structural representation that blocks steel plate;

Fig. 8 is the base plate synoptic diagram that is plugged with module.

Among the figure: 1-cabinet, 2-transformer, 3-220 AC power external circuits, 4-base plate, the double pin socket of 401-, 402-block region, the 403-pin hole, 404-is solid, and 5-blocks steel plate, the 501-through hole, the 6-functional module, 601-pin type latch, 602-electronic devices and components, 603-contact pin.

Embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

As shown in Figure 1: the electronic experiment case that the utility model provides comprises cabinet 1, is provided with in the base plate 4,220V AC power external circuits 3, cabinet 1 of P.e.c. transformer 2 is housed, for power module provides relevant voltage; It also comprises tens independently functional modules 6; Referring to Fig. 2: the front panel of base plate 4 is divided into ten block region 402, and the right and left of each block region is respectively equipped with double pin socket 401; Referring to Fig. 4 and Fig. 5: the right and lefts below each functional module 6 are provided with the double pin type latch 601 corresponding with pin socket 401 positions; Be fixed with electronic devices and components 602 on the functional module 6; Contact pin 603 by double pin type latch 601 on each pin socket 401 is connected with a functional module 6 with the grafting removably, and functional module 6 comprises necessary power module, selectable basic module and improves module.The base plate 4 that present embodiment provided is provided with ten functional module districts 402, and does not mean that restriction of the present utility model, and the functional module zone also can be to be greater than or less than other number of ten.Though the front panel of the base plate 4 of present embodiment is divided into ten block region 402, base plate 40 modules of can pegging graft, the user must buy or use ten modules, the quantity of selected module as required.

The double pin type latch 601 that functional module 6 both sides are provided with is plugged on the double pin socket 401, is about to functional module 6 and is fixed on the base plate 4, by base plate power supply and corresponding signal lines is guided on the pin of functional module correspondence; Like this, just the circuit that can design corresponding function on functional module is developed experiment.The all functions module all can be pulled up from base plate easily, according to using needs, changes the functional module of required usefulness.

In order to prevent functional module wrong plug or anti-inserted,, can take following two measures as of the present utility model perfect.Referring to Fig. 4: each above the functional module 6 mark have " UP ", " DOWN " to point out sign, " UP " represents that this was directed upwardly when this functional module was inserted on the base plate, when " DOWN " represents that this functional module is inserted on the base plate this direction down, anti-inserted to prevent functional module.Referring to Fig. 3 and Fig. 6: become solidly 404 in certain pin hole 403 shutoff with double pin socket 401, that root contact pin 603 that corresponding module is corresponding with solid 404 places pulls out, and avoids the functional module wrong plug.

As of the present utility model further perfect, referring to Fig. 1 and Fig. 7: in order to keep the neat and tidy of base plate 4, what stainless steel was housed on base plate 4 blocks steel plate 5, block steel plate 5 and be provided with the through hole 501 corresponding with pin socket 401 positions, after the pin contact pin 601 of functional module 6 was pegged graft with pin socket 401, functional module 6 is positioned at blocked above the steel plate 5.

The utility model is equipped with experimental box instructions handbook, and the user is the indication operation of handbook to specifications, just can finish experiment easily.

The basic module that the utility model provides comprises single chip processing module, AD+DA module, signal condition module, communication and ISP download module, Keysheet module, 8155 parallel port expansion modules, display module, utilizes basic module can finish that the Electronics Engineer authenticates and student's study course requires the infrastest that reaches; Wherein the AD+DA module has serial AD/DA module and parallel AD/DA module, and display module has character mode lcd module, Chinese character-shaped Liquid Crystal Module and led module.The raising module that the utility model provides comprises relay/infrared/IO module, I ²C interface module, wireless remote control module, RS 232/485 modular converter, CAN bus interface module, usb communication interface module.

The relay that the utility model provides/infrared/IO module, I ²The C interface module can transparently be exchanged, and selects without short circuit cap, and software is without any need for modification; 8155 parallel port expansion modules, AD+DA module, usb communication interface module and CAN bus interface module that the utility model provides, it is promptly interchangeable not need to change the base plate line according to only need several lines (needing to revise software definition simultaneously) on the modified module with the pinout on the case handbook.Because the interchangeability of module position, the user needn't worry the wrong plug position and cause circuit board damage; Save cost, even certain zone causes short circuit owing to unexpected in the backplane circuit, because the interchangeability of module position also can be done experiment in other position, and not need to change base plate.

Ten block region 402 of present embodiment base plate 4, four on the left side are the 20 pin platelets of 4.5*9CM, and middle, each three on the right is the big plate of 26 pins of 6*9CM.Four platelet outward appearances are identical, comprise the specification of length and width, thick and socket; Six big plate outward appearances are also identical, comprise the specification of length and width, thick and socket.

Referring to Fig. 8: corresponding, the present embodiment base plate left side peg graft respectively independently four 20 needle mould pieces be power module, relay/infrared/IO module, I ²C interface module and signal condition module; The 26 needle mould pieces of pegging graft with the right in the middle of the present embodiment base plate have 4*4 Keysheet module, single chip processing module, AD+DA module, display module, 8155 parallel port expansion modules and communicate by letter and the ISP download module.

All be reserved with the jumper cap position that quantity does not wait on each functional module, can set a question easily (being out of order) examines, and is out of order and can not damage module itself.

For better training and saving cost, each experiential function module 6 all adopts wire jumper, jumping cap mode to connect.When training or examination, can not destroy the unit module circuit.Only need during examination to set a question by different wire jumpers, strong operability, the user of unit once just can be repeatedly used as long as buy.

Claims

1, a kind of electronic experiment case comprises cabinet, is provided with base plate, 220V AC power external circuits, the transformer of P.e.c.; It is characterized in that: it also comprises M independently functional module (6); The front panel of described base plate (4) is divided into N block region (402), and each described block region (402) is respectively equipped with pin socket (401); Be provided with the pin type latch (601) corresponding below each described functional module (6) with described pin socket (401) position; Each described pin socket (401) is gone up and is connected with a described functional module (6) with the grafting removably, basic module and raising module that described functional module (6) comprises power module and chooses.

2, a kind of electronic experiment case according to claim 1 is characterized in that: described pin socket (401) is a double-row type pin socket (401), and described pin type latch (601) is a double-row type pin type latch (601); The right and left of each described block region (402) is provided with described double-row type pin socket (401), and following both sides of each described functional module (6) and described double-row type pin socket (401) corresponding position are provided with double-row type pin type latch (601).

3, a kind of electronic experiment case according to claim 1 is characterized in that: described basic module comprises single chip processing module, AD+DA module, signal condition module, communication and ISP download module, Keysheet module, 8155 parallel port expansion modules, display module; Described raising module comprises relay/infrared/IO module, I ²C interface module, wireless remote control module, RS 232/485 modular converter, CAN interface module, usb communication interface module.

4, a kind of electronic experiment case according to claim 1 is characterized in that: mark has " UP ", " DOWN " to point out sign above the described functional module (6); Certain pin hole (403) shutoff of described pin socket (401) becomes solid (404), and the contact pin (603) that corresponding module is corresponding with described solid (404) place is removed.

5, according to any described a kind of electronic experiment case of claim 1 to 4, it is characterized in that: what stainless steel was housed above the described base plate (4) blocks steel plate (5), and the described steel plate (5) that blocks is provided with the through hole (501) corresponding with described pin socket (401) position.

6, a kind of electronic experiment case according to claim 5, it is characterized in that: described module (402) is ten, and four on the left side is the 20 pin platelets of 4.5*9CM, and middle and each three on the right is the big plate of 26 pins of 6*9CM.

7, a kind of electronic experiment case according to claim 6, it is characterized in that: described functional module is reserved with the jumper cap position on (6); Described functional module (6) adopts wire jumper, jumping cap mode to connect.