CN203551713U - Testing device - Google Patents
Testing device Download PDFInfo
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- CN203551713U CN203551713U CN201320654287.0U CN201320654287U CN203551713U CN 203551713 U CN203551713 U CN 203551713U CN 201320654287 U CN201320654287 U CN 201320654287U CN 203551713 U CN203551713 U CN 203551713U
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- Prior art keywords
- circuit
- relay
- proving installation
- control circuit
- housing
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Abstract
The utility model provides a testing device which is used for open and short circuit tests for electronic parts and components. The testing device comprises a housing, a housing cover, a controller, a relay and a dial switch, wherein the housing cover is flexibly connected with the housing, the housing coordinates with the housing cover to form a sealed box body, and the controller, the relay and the dial switch are installed in the box body. The controller comprises a power circuit, a power-switching circuit, a master chip circuit, a to-be-tested mainboard control circuit, a receiving circuit and a short dot control circuit, wherein a switch end of the relay is in series connection in the to-be-tested mainboard control circuit, a coil of the relay is in series connection with the dial switch and is connected with the short dot control circuit, the short dot control circuit controls short dots by controlling on and off of the relay, the power circuit is used for supplying power to the mainboard of the controller, the power-switching circuit is used for supplying power to the master chip circuit, the to-be-tested mainboard control circuit is used for controlling power supply of components and the mainboard to be tested, and the receiving circuit is used for receiving remote control information. By using the testing device provided by the utility model, automation of a testing process is realized, and the testing efficiency is raised.
Description
Technical field
The utility model relates to technical field of measurement and test, relates in particular to the proving installation that a kind of electronic devices and components are opened short circuit.
Background technology
Electronic devices and components and the circuit board that consists of electronic devices and components may burn out electronic devices and components opening a way, short circuit in the situation that and even occur the phenomenons such as blast, catching fire.Electronic devices and components and the circuit board that consists of electronic devices and components are opened to short circuit experiment, are reliability in the situation that of open circuit, short circuit of checking electronic devices and components and circuit board, the common way of security.
Components and parts leave the technical scheme of short circuit experiment and are at present: by operating switch manually, connect or disconnect controlled electronic devices and components, thereby realize the checking to the open circuit of electronic devices and components and short circuit.This technical scheme automaticity is low, and operation is completed by artificial order.Owing to lacking safeguard procedures, may be because operating personnel's faulty operation causes security incident in the process of experiment, the interactivity of people and device is poor.
Utility model content
In view of the present situation of prior art, the purpose of this utility model is to provide a kind of proving installation, and it improves automaticity and Man machine interaction that electronic devices and components are opened short circuit experiment.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of proving installation, described proving installation is opened short circuit experiment for electronic devices and components, described proving installation comprises housing, cap, controller, relay and toggle switch, the movable connection of described cap and housing, described housing and cap match and form the casing of sealing, and described controller, relay and toggle switch are arranged in described casing;
Described controller comprises power circuit, power-switching circuit, master chip circuit, mainboard control circuit to be measured, receiving circuit and short dot control circuit;
The switch terminals of described relay is connected in described mainboard control circuit to be measured, and connect described toggle switch of the coil of described relay connects short dot control circuit, and described short dot control circuit is controlled short dot by the break-make of pilot relay;
Described power circuit is used to the main board power supply of described controller;
Described power-switching circuit is used for to described master chip circuit supply;
Described mainboard control circuit to be measured is for controlling the power supply of tested components and parts/mainboard;
Described receiving circuit is used for receiving remote information.
In an embodiment, described controller also comprises buzzer circuit, display circuit, program burn writing circuit therein;
Described buzzer circuit is used for driving hummer pronunciation, and described display circuit is used for driving display device;
Described program burn writing circuit is used for to master chip programming program.
In an embodiment, described display device is display screen or charactron therein.
In an embodiment, described master chip circuit comprises main control chip, oscillatory circuit, reset circuit, chip filtering circuit and jogging switches measurement circuit therein.
In an embodiment, proving installation also comprises A.C. contactor therein;
The switch terminals of described A.C. contactor is connected on by between the components and parts of short circuit and described mainboard control circuit to be measured.
In an embodiment, on described housing, be provided with microswitch therein, described microswitch is arranged on the side panel that described housing is connected with described cap, and described microswitch is connected in described master chip circuit.
In an embodiment, the quantity of described relay is a plurality of therein, and the quantity of described toggle switch is identical with the quantity of described relay, the corresponding described toggle switch of relay described in each.
The beneficial effects of the utility model are:
Proving installation of the present utility model, simple in structure, easy to operate, by controlling adhesive and the disconnection of a plurality of relays, control the process that short circuit experiment left by components and parts, realized the robotization of experimentation, improved the efficiency of experiment.With hummer and charactron prompting, open the process of short circuit experiment, improved the interactivity of people and device, reduced personnel's agitation around simultaneously.The state of jogging switches measurement cap is installed on housing, has been guaranteed operating personnel's safety.
Accompanying drawing explanation
Fig. 1 is that the master of proving installation one embodiment of the present utility model looks schematic diagram;
Fig. 2 is the vertical view of proving installation shown in Fig. 1;
Fig. 3 is the left view of proving installation shown in Fig. 1;
Fig. 4 is the process flow diagram that shown in Fig. 1, short circuit experiment left by proving installation.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, proving installation of the present utility model is described in further detail.Should be appreciated that specific embodiment described herein is only for explaining the utility model, and be not used in restriction the utility model.
Referring to figs. 1 through Fig. 3, proving installation one embodiment of the present utility model comprises cap 1, housing 2 and controller, relay and toggle switch.Wherein, cap 1 and the mobilizable connection of housing 2, and cap 1 and housing 2 complement each other to form airtight casing, and controller, relay and toggle switch are arranged in casing.In the present embodiment, cap 1 and housing 2 all adopt transparent organic glass, make casing smooth clean and tidy.5 faces of housing 2 are connected and fixed organic glass with screw, firmly difficult drop-off.
More preferably, hummer and microswitch are installed on housing 2, housing 2 is provided with the through hole corresponding with described hummer, so that prompt tone can spread out of from chest.Microswitch is arranged on the side panel that described casing is connected with described cap, when cap 1 is built, microswitch can just be closed, and microswitch can disconnect while not building, thereby realize, by microswitch, triggers external interrupt program, assurance operating personnel's safety.
Controller comprises power circuit, power-switching circuit, master chip circuit, mainboard control circuit to be measured, receiving circuit, buzzer circuit, display circuit, program burn writing circuit and short dot control circuit.
Wherein, the switch terminals of relay is connected in described mainboard control circuit to be measured, and the coil of relay series connection toggle switch connects short dot control circuit, and short dot control circuit is controlled short dot by the break-make of pilot relay.
Power circuit is used to the main board power supply of controller, for the provide+12V of mainboard of controller and+5V power supply.
Power-switching circuit is used for to master chip circuit supply, and convert to+3.3V of general+5V power supply power supply is master chip power supply.
Master chip circuit comprises main control chip, oscillatory circuit, reset circuit, chip filtering circuit and jogging switches measurement circuit.
Mainboard control circuit to be measured, for controlling the power supply of tested components and parts/mainboard, is controlled and is realized power supply A.C. contactor by relay.
Receiving circuit is used for receiving remote information, realizes distant control function, improves man-machine interaction.
Buzzer circuit is used for driving hummer pronunciation, and in the present embodiment, this hummer adopts music buzzer.A music buzzer two ends needle stand in parallel on controller, facilitates external music buzzer.
Display circuit is used for driving display device.More preferably, this display device is display screen or charactron.
Program burn writing circuit, for to master chip programming program, facilitates on-line debugging program.
Short dot control circuit is for short dot is controlled, and this process is to control by the adhesive of pilot relay and disconnection.Also have LED lamp to show the state of corresponding relay, i.e. during relay adhesive, corresponding LED lantern festival is bright, and when relay disconnects, corresponding LED lantern festival is gone out.The Determines of toggle switch corresponding relay whether can adhesive, when toggle switch pushes ON, corresponding relay can adhesive, relay corresponding while pushing OFF can adhesive.
More preferably, proving installation also comprises A.C. contactor, and the switch terminals of A.C. contactor is connected on by between the components and parts of short circuit and mainboard control circuit to be measured.The quantity of relay is a plurality of, and the quantity of toggle switch is identical with the quantity of relay, the corresponding described toggle switch of each relay.
As shown in Figure 4, the proving installation of above embodiment comprises the steps: in the course of the work
S1, proving installation initialization, remote control starts described proving installation.By this step, for experiment provides necessary condition, make experimentation smooth and easy.
S2, by toggle switch, the zone bit of relay is set and stores described zone bit information.This step participates in the control of opening short circuit experiment for determining which relay.
The time that short circuit experiment is opened in S3, remote control setting.The time of more preferably, opening short circuit experiment comprises start time, end time, duration and/or adjacent interval time of opening short circuit experiment for twice.
S4, MCU read described zone bit information and control relay adhesive corresponding to zone bit described in it according to described zone bit information, and after certain time, described MCU controls described relay and disconnects, and opens short circuit experiment complete.
The process that short circuit experiment left by components and parts is controlled in adhesive and disconnection by a plurality of relays of programmed control, has realized the robotization of experimentation, has improved the efficiency of experiment.
Preferably, as a kind of embodiment, step S1 comprises the following steps:
S11, electrification reset, after resetting, all relays are all in off-state, and the pilot lamp of each relay extinguishes, and rear hummer pronunciation prompting has resetted;
S12, self check, make the conducting successively of each relay, and during relay conducting, its corresponding pilot lamp is lit.If relay corresponding to pilot lamp do not have adhesive, illustrate that this relay damages, can not control with this relay the short circuit of opening of components and parts.
Preferably, as a kind of embodiment, step S2 comprises:
S21, toggle switch corresponding to relay that needs are used push ON position, and when the toggle switch corresponding to relay that need to use pushes ON position, the zone bit that described relay is corresponding is 1, the adhesive in opening short circuit experiment of this relay.Because device has a plurality of for controlling out the relay of short circuit above, and sometimes only need to use several relays wherein, other relays leave unused, in order to shield these idle relays, just designed accordingly a plurality of toggle switchs and with the state of toggle switch as the relay sign of adhesive whether.When relay adhesive, show that this relay participates in opening the control of short circuit.When relay disconnects,, when toggle switch corresponding to relay pushes OFF position, this relay does not participate in out the control of short circuit.
S22, MCU are kept at the zone bit reading in the register C of MCU.Like this for the deterministic process in step S3 provides Data Source.
Preferably, as a kind of embodiment, in step S4, before relay adhesive, also comprise the steps:
S41, judge whether the value of register C is 0; If so, all relays are all idle, finish out short circuit experiment; Otherwise enter step S42.
S42, judge whether the lowest order of register C is 0; If so, the relay that the lowest order of register C is corresponding is idle, and register C moves to right one automatically, forwards the judgement of next relay to; If not, for giving the A.C. contactor adhesive of being powered by short circuit components and parts.
If register C is 0, all not adhesives of relay are described, the not conducting of circuit at tested components and parts place, next step can forward latter end to.If register C is not 0, judge whether the lowest order of C is 0, if the lowest order of C is 0, illustrate that the relay that this zone bit is corresponding leaves unused, can make register C automatically move to right one, forward the judgement of next relay to.If register C be not 0 and the lowest order of C be not 0, give tested components and parts power supply.After power supply, make the relay adhesive that this zone bit is corresponding, open short circuit experiment.Opening the lasting time of short circuit can control in remote control.Hold short circuit experiment start before the hummer prompting of can pronouncing, prompt tone can be pointed out the process of experiment.Owing to opening in short circuit experiment, may have explosion phenomenon, the prompt tone of hummer can make personnel around carry out psychological preparation, in order to avoid get a fright.
Preferably, as a kind of embodiment, in step S4, after described relay adhesive, also comprise the steps:
The countdown of short circuit experiment duration is opened in S43, demonstration;
S44, countdown are 0 o'clock, hummer pronunciation prompting, and in step S2, the relay of adhesive disconnects.
Preferably, as a kind of embodiment, in step S4, described relay also comprises the steps: after disconnecting
S45, hummer send prompt tone; Remind operating personnel's A.C. contactor to disconnect, sense of hearing judgement is provided.
S46, A.C. contactor disconnect, and return to step S41.After the test of the components and parts of the tested short circuit of this relay place circuit completes, return to the test that step S41 carries out next road.
Hold short circuit experiment and start rear charactron and can show countdown, open the excess time of short circuit experiment.When this relay corresponding open short circuit experiment and finish time, the countdown that charactron shows is 0 o'clock, this relay can disconnect automatically, this is opened short circuit experiment and finishes, the hummer prompting of can pronouncing before relay disconnects.After this relay disconnects, then can make to being disconnected by the A.C. contactor of the components and parts of short circuit power supply, before A.C. contactor disconnects, hummer can pronounce to point out.After A.C. contactor disconnects, wait for y minute, the time interval of short circuit experiment is opened in twice of arranging by remote control, and register C moves to right one automatically, then repeats the operation of this part.
As a kind of embodiment, proving installation is further comprising the steps of in the course of the work:
S5, when reaching external trigger conditions, enter external interrupt service routine, this is opened short circuit experiment and finishes: the A.C. contactor of power supply disconnects, hummer pronunciation prompting.This step designs in order to guarantee operating personnel's safety.Open in the process of short circuit experiment, may there is the phenomenon that components and parts can explode, burn, more dangerous, if operating personnel attempt to open the top cover of experimental box in the process of experiment, will trigger the interruption of MCU, forward interrupt service subroutine to and disconnect supply relay, then make program forward latter end to.It is to realize near the microswitch at top by being arranged on experimental box body side that MCU herein interrupts.As will be again entered electronic devices and components, open short circuit experiment process, need the operation of each several part before repetition.
The proving installation of above embodiment, simple in structure, easy to operate, by controlling the adhesive of a plurality of relays and disconnecting the process that control components and parts are opened short circuit experiment, realized the robotization of experimentation, improved the efficiency of experiment.With hummer and charactron prompting, open the process of short circuit experiment, improved the interactivity of people and device, reduced personnel's agitation around simultaneously.The state of jogging switches measurement cap is installed on housing, has been guaranteed operating personnel's safety.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (7)
1. a proving installation, described proving installation is opened short circuit experiment for electronic devices and components, it is characterized in that:
Described proving installation comprises housing, cap, controller, relay and toggle switch, the movable connection of described cap and housing, and described housing and cap match and form the casing of sealing, and described controller, relay and toggle switch are arranged in described casing;
Described controller comprises power circuit, power-switching circuit, master chip circuit, mainboard control circuit to be measured, receiving circuit and short dot control circuit;
The switch terminals of described relay is connected in described mainboard control circuit to be measured, and connect described toggle switch of the coil of described relay connects short dot control circuit, and described short dot control circuit is controlled short dot by the break-make of pilot relay;
Described power circuit is used to the main board power supply of described controller;
Described power-switching circuit is used for to described master chip circuit supply;
Described mainboard control circuit to be measured is for controlling the power supply of tested components and parts/mainboard;
Described receiving circuit is used for receiving remote information.
2. proving installation according to claim 1, is characterized in that:
Described controller also comprises buzzer circuit, display circuit, program burn writing circuit;
Described buzzer circuit is used for driving hummer pronunciation, and described display circuit is used for driving display device;
Described program burn writing circuit is used for to master chip programming program.
3. proving installation according to claim 2, is characterized in that:
Described display device is display screen or charactron.
4. proving installation according to claim 1, is characterized in that:
Described master chip circuit comprises main control chip, oscillatory circuit, reset circuit, chip filtering circuit and jogging switches measurement circuit.
5. proving installation according to claim 1, is characterized in that:
Also comprise A.C. contactor;
The switch terminals of described A.C. contactor is connected on by between the components and parts of short circuit and described mainboard control circuit to be measured.
6. according to the proving installation described in claim 1-5 any one, it is characterized in that:
On described housing, be provided with microswitch, described microswitch is arranged on the side panel that described housing is connected with described cap, and described microswitch is connected in described master chip circuit.
7. proving installation according to claim 6, is characterized in that:
The quantity of described relay is a plurality of, and the quantity of described toggle switch is identical with the quantity of described relay, the corresponding described toggle switch of relay described in each.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320654287.0U CN203551713U (en) | 2013-10-22 | 2013-10-22 | Testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320654287.0U CN203551713U (en) | 2013-10-22 | 2013-10-22 | Testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203551713U true CN203551713U (en) | 2014-04-16 |
Family
ID=50469810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320654287.0U Expired - Fee Related CN203551713U (en) | 2013-10-22 | 2013-10-22 | Testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203551713U (en) |
-
2013
- 2013-10-22 CN CN201320654287.0U patent/CN203551713U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20211022 |