CN201369042Y - Test device - Google Patents
Test device Download PDFInfo
- Publication number
- CN201369042Y CN201369042Y CNU2008201762873U CN200820176287U CN201369042Y CN 201369042 Y CN201369042 Y CN 201369042Y CN U2008201762873 U CNU2008201762873 U CN U2008201762873U CN 200820176287 U CN200820176287 U CN 200820176287U CN 201369042 Y CN201369042 Y CN 201369042Y
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- CN
- China
- Prior art keywords
- mentioned
- luminescence unit
- motherboard
- proving installation
- display card
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a test device. The test device comprises a connecting part, a power supply circuit, a comparator, a first light-emitting unit, a switch module and a light control unit. The test device tests test points of a graphic card connector of a motherboard through the connecting part, the power supply circuit, the comparator, the first light-emitting unit, the switch module and the light control unit; when short circuit occurs inside the graphic card connector, the test device implements protective operation on the motherboard automatically for the purpose of preventing the motherboard and the graphic card from burning out by erroneous booting at the time of short circuit.
Description
Technical field
The utility model relates to a kind of proving installation, and particularly relevant for a kind of proving installation of testing the display card correlative technology field.
Background technology
Along with the prosperity of science and technology, computer has become the more and more important in daily life instrument of people.Display card is one of most important parts in the computer, and to a great extent, the height of display card performance is determining the performance of the image processing of system in recreation and amusement.
In computer apparatus, computer apparatus generally includes a motherboard, include a display card connector on this motherboard, and the user can plug the display card of various brands arbitrarily, as long as this display card meets the display card connector of above-mentioned motherboard.Yet when changing display card, the user does not know the quality of the display card changed usually.If what change is problematic display card, then may cause electronic component to damage after the start, serious then may burn by circuit board.
Therefore, for display card manufacturer, it must guarantee that its display card of producing is good no problem.Generally speaking, whether display card manufacturer can the circuit short circuit take place by test display card connector inside, and whether monitor display card good.
Existing test mode is to adopt manually mode to test, for example: use universal electric meter to come that the contact that the display card connector easily forms short circuit is carried out impedance and measure.Yet this test mode is extremely inconvenient in producing the line production test procedure, and easily judges by accident.In addition, when display card goes wrong, if the start button of false touch computer apparatus then might cause the electronic component on the motherboard to damage.
The utility model content
The purpose of this utility model provides a kind of proving installation of display card connector, to improve the disappearance of prior art.
The utility model provides a kind of proving installation, couples motherboard.Motherboard comprises display card connector and switch element, and motherboard also has a test point that electrically connects with the display card connector, and wherein motherboard was in electricity and open state not, and the display card connector is inserted with a display card.Proving installation comprises connecting portion, feed circuit, comparer, first luminescence unit, switch module and light control unit.
Connecting portion couples test point, and obtains to measure voltage by test point.Feed circuit provide predeterminated voltage.Comparer couples connecting portion and feed circuit respectively, and reception measures voltage and predeterminated voltage compares, and comparative result is provided.First luminescence unit couples comparer, and receives comparative result, when comparative result is one first state, and expression display card test crash, and first luminescence unit is not luminous.Switch module couples switch element.Light control unit couples switch module, and is arranged at a side of first luminescence unit, and when first luminescence unit was not luminous, light control unit gauge tap module was come the switch element of main control system plate, made motherboard to start shooting.
The proving installation of display card connector of the present utility model can be automatically to measuring the testing efficiency height with the test point of display card connector electric connection.And when short circuit occurring, proving installation carries out the limiting protecting action to mainboard starting automatically, when preventing short circuit, opens by mistake machine burning and ruins motherboard and display card, with the safety of protection equipment and product.
For above-mentioned and other purpose, feature and advantage of the present utility model can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Figure 1 shows that the proving installation according to the display card connector of the utility model one preferred embodiment connects the synoptic diagram of a motherboard.
Figure 2 shows that the proving installation according to the display card connector of another preferred embodiment of the utility model connects the synoptic diagram of a motherboard.
Embodiment
Figure 1 shows that the proving installation according to the display card connector of the utility model one preferred embodiment connects the synoptic diagram of a motherboard.
As shown in Figure 1, proving installation 20 couples motherboard 10.Motherboard 10 comprises display card connector 101, switch element 102 and the test point 103 that electrically connects with display card connector 101, and display card connector 101 is inserted with display card 104.In the present embodiment, test point 103 is a voltage test points, yet the utility model is not as limit.
Proving installation 20 comprises connecting portion 201, feed circuit 202, comparer 203, first luminescence unit 204, switch module 205, light control unit 206 and second luminescence unit 207.Connecting portion 201 couples test point 103, and obtains to measure voltage Vtest by test point 103.Feed circuit 202 provide predeterminated voltage Vcc.Comparer 203 couples connecting portion 201 and feed circuit 202 respectively, and reception measures voltage Vtest and predeterminated voltage Vcc compares, and comparative result is provided.
In the present embodiment, first luminescence unit 204 and second luminescence unit 207 are light emitting diode (LED), light control unit 206 is photoelectrical coupler (belonging to the noncontacting switch device, is to make trigger device with LED or laser diode, with controllable silicon or transistor as switching device).First state of comparative result and second state can just be distinguished with current potential in the present embodiment, and for example first state is a noble potential, and then second state is an electronegative potential.
In the present embodiment, motherboard 10 also comprises central processing unit (CPU) 105, north bridge chips 106, South Bridge chip 107, internal memory 108, embedded controller (EC) 109, power circuit 110 and power-supply unit 111.
When the power-supply unit 111 of motherboard 10 had the input of 220V alternating current and do not start shooting, the power circuit 110 of motherboard 10 just had the output of 5V-Standby voltage.At this moment, in the present embodiment, be to use 5V-Standby voltage to proving installation 20 power supplies, promptly feed circuit 202 receive the 5V-Standby voltage of power circuit 110 outputs.
Not luminous when first luminescence unit 204, when second luminescence unit 207 is luminous; expression display card 104 test crashs; light control unit 206 gauge tap modules 205 make the switch element 102 of motherboard 10 disconnect; there is not trigger pip to export embedded controller (EC) 109 to; then power circuit 110 can output voltage each electronic component to the motherboard 10; motherboard 10 can't be started shooting; even error shock source switch this moment (figure does not show); can prevent to burn motherboard and display card like this, the safety of protection equipment and product.
204 luminous when first luminescence unit, when second luminescence unit 207 is not luminous, 104 tests of expression display card are passed through, light control unit 206 gauge tap modules 205 come the switch element 102 of main control system plate 10 to connect, export a trigger pip to embedded controller (EC) 109 with trigger switch module 205, control power circuit 110 output voltages each electronic component to the motherboard 10, make motherboard 10 start shooting, motherboard normally moves, to carry out follow-up test work.
When the display card test was passed through, switch module 205 control feed circuit 202 were stopped power supply to comparer 203, first luminescence unit 204 behind the mainboard starting in addition, and promptly proving installation 20 quits work.The user can judge display card 104 test results by the luminance of first luminescence unit 204 and second luminescence unit 207 like this, and can protect the safety of equipment and product.
Figure 2 shows that the proving installation according to the display card connector of another preferred embodiment of the utility model connects the synoptic diagram of a motherboard.
As shown in Figure 2, proving installation 40 couples motherboard 30 by card extender 50.Motherboard 30 comprises display card connector 301, switch element 302 and the test point 303 that electrically connects with display card connector 301, and display card connector 301 is inserted with display card 304.In the present embodiment, test point 303 is a voltage test points, card extender 50 has first end 501 and one second end 502, first end 501 and test point 303 are connected with welding manner, but second end 502 couples by a plug-in connector mode with connecting portion 401, yet the utility model is not as limit.
In the present embodiment, motherboard 30 also comprises central processing unit 305, north bridge chips 306, South Bridge chip 307, internal memory 308, embedded controller 309, power circuit 310 and power-supply unit 311.Annexation between above-mentioned each element is identical with first preferred embodiment, does not repeat them here.When the power-supply unit 311 of motherboard 30 had the input of 220V alternating current and do not start shooting, the power circuit 310 of motherboard 30 just had the output of 5V-Standby voltage.
Proving installation 40 comprises connecting portion 401, feed circuit 402, comparer 403, first luminescence unit 404, switch module 405 and light control unit 406.Connecting portion 401 couples test point 303 by card extender 50, and obtains to measure voltage Vtest ' by test point 303.Feed circuit 402 receive the 5V-Standby voltage of power circuit 310 outputs, and predeterminated voltage Vcc ' is provided.Comparer 403 couples connecting portion 401 and feed circuit 402 respectively, and reception measures voltage Vtest ' and predeterminated voltage Vcc compares, and comparative result is provided.
In the present embodiment, first luminescence unit 404 is a light emitting diode, and light control unit 406 is photoelectrical coupler (belonging to the noncontacting switch device, is to make trigger device with LED or laser diode, with controllable silicon or transistor as switching device).First state of comparative result and second state can just be distinguished with current potential in the present embodiment, and for example first state is a noble potential, and then second state is an electronegative potential.
When first luminescence unit 404 is not luminous; expression display card 404 test crashs; first switch S 1 of light control unit 406 gauge tap modules 405 makes the switch element 302 of motherboard 30 disconnect; there is not trigger pip to export embedded controller (EC) 309 to; then power circuit 310 can output voltage each electronic component to the motherboard 30; motherboard 30 can't be started shooting; even error shock source switch this moment (figure does not show); can prevent to burn motherboard and display card like this, the safety of protection equipment and product.
When first luminescence unit 404 luminous, 304 tests of expression display card are passed through, first switch S 1 of light control unit 406 gauge tap modules 405 comes the switch element 302 of main control system plate 30 to connect, export a trigger pip to embedded controller (EC) 309, control power circuit 310 output voltages each electronic component to the motherboard 30, make motherboard 30 start shooting, motherboard 30 normally moves, to carry out follow-up test work.In addition, when the display card test was passed through, the second switch S2 control feed circuit 402 of switch module 405 were stopped power supply to comparer 403, first luminescence unit 404, and promptly proving installation 40 quits work.The user can judge display card 304 test results by the luminance of first luminescence unit 404 like this, and can protect the safety of equipment and product.
In sum, the proving installation of display card connector of the present utility model can be automatically to measuring the testing efficiency height with the test point of display card connector electric connection.And when short circuit occurring, proving installation carries out the limiting protecting action to mainboard starting automatically, when preventing short circuit, opens by mistake machine burning and ruins motherboard and display card, with the safety of protection equipment and product.
Though the utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; have in the technical field under any and know the knowledgeable usually; in not breaking away from spirit and scope of the present utility model; when doing a little change and retouching, therefore protection domain of the present utility model is as the criterion when looking claims person of defining.
Claims (7)
1. proving installation, couple motherboard, above-mentioned motherboard comprises display card connector and switch element, above-mentioned motherboard also has a test point that electrically connects with above-mentioned display card connector, wherein above-mentioned motherboard was in electricity and open state not, and above-mentioned display card connector is inserted with display card, it is characterized in that, above-mentioned proving installation comprises:
Connecting portion couples above-mentioned test point, and obtains to measure voltage by above-mentioned test point;
Feed circuit provide predeterminated voltage;
Comparer couples above-mentioned connecting portion and above-mentioned feed circuit respectively, and receives above-mentioned measurement voltage and above-mentioned predeterminated voltage compares, and comparative result is provided;
First luminescence unit couples above-mentioned comparer, and receives above-mentioned comparative result, when above-mentioned comparative result is first state, represent above-mentioned display card test crash, and above-mentioned first luminescence unit is not luminous;
Switch module couples above-mentioned switch element; And
Light control unit, couple above-mentioned switch module, and be arranged at a side of above-mentioned first luminescence unit, when above-mentioned first luminescence unit is not luminous, above-mentioned light control unit is controlled above-mentioned switch module to control the above-mentioned switch element of above-mentioned motherboard, makes above-mentioned motherboard to start shooting.
2. proving installation according to claim 1, it is characterized in that, above-mentioned proving installation also comprises second luminescence unit, couple above-mentioned comparer, to receive above-mentioned comparative result, and above-mentioned second luminescence unit is away from above-mentioned light control unit, and when above-mentioned comparative result was above-mentioned first state, above-mentioned second luminescence unit was luminous.
3. proving installation according to claim 1, it is characterized in that, above-mentioned proving installation also comprises second luminescence unit, couple above-mentioned comparer, to receive above-mentioned comparative result, when above-mentioned comparative result is second state, represent that the test of above-mentioned display card passes through, above-mentioned first luminescence unit is luminous and above-mentioned second luminescence unit is not luminous.
4. proving installation according to claim 3, it is characterized in that, above-mentioned switch module comprises first switch and second switch, above-mentioned feed circuit also couple above-mentioned first luminescence unit and above-mentioned second luminescence unit, above-mentioned first switch is controlled above-mentioned switch element and is made above-mentioned mainboard starting, above-mentioned second switch control above-mentioned feed circuit to stop power supply to above-mentioned comparer, above-mentioned first luminescence unit and above-mentioned second luminescence unit.
5. proving installation according to claim 3, it is characterized in that, above-mentioned feed circuit also couple above-mentioned first luminescence unit, above-mentioned second luminescence unit and above-mentioned switch module, and above-mentioned light control unit is controlled above-mentioned switch module and stopped power supply to above-mentioned comparer, above-mentioned first luminescence unit and above-mentioned second luminescence unit to control above-mentioned feed circuit.
6. proving installation according to claim 1 is characterized in that, couples by card extender between above-mentioned test point and the above-mentioned connecting portion.
7. proving installation according to claim 3 is characterized in that, above-mentioned card extender has first end and second end, and above-mentioned first end is connected with welding manner with above-mentioned test point, but above-mentioned second end and above-mentioned connecting portion couple by the plug-in connector mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201762873U CN201369042Y (en) | 2008-11-20 | 2008-11-20 | Test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201762873U CN201369042Y (en) | 2008-11-20 | 2008-11-20 | Test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201369042Y true CN201369042Y (en) | 2009-12-23 |
Family
ID=41487934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201762873U Expired - Fee Related CN201369042Y (en) | 2008-11-20 | 2008-11-20 | Test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201369042Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103365387A (en) * | 2012-03-30 | 2013-10-23 | 纬创资通股份有限公司 | Clearing circuit of memory |
| CN105699733A (en) * | 2014-11-24 | 2016-06-22 | 鸿富锦精密工业(武汉)有限公司 | Charge detection device |
-
2008
- 2008-11-20 CN CNU2008201762873U patent/CN201369042Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103365387A (en) * | 2012-03-30 | 2013-10-23 | 纬创资通股份有限公司 | Clearing circuit of memory |
| CN105699733A (en) * | 2014-11-24 | 2016-06-22 | 鸿富锦精密工业(武汉)有限公司 | Charge detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20131120 |