CN101369698A - Method for preventing power supply short circuit and circuit board burning cause by inverse connection between symmetrical plates - Google Patents
Method for preventing power supply short circuit and circuit board burning cause by inverse connection between symmetrical plates Download PDFInfo
- Publication number
- CN101369698A CN101369698A CNA2008101575227A CN200810157522A CN101369698A CN 101369698 A CN101369698 A CN 101369698A CN A2008101575227 A CNA2008101575227 A CN A2008101575227A CN 200810157522 A CN200810157522 A CN 200810157522A CN 101369698 A CN101369698 A CN 101369698A
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- CN
- China
- Prior art keywords
- power supply
- connector
- pin
- symmetrical
- circuit board
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- 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.)
- Pending
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- 238000000034 method Methods 0.000 title claims abstract description 6
- 238000003780 insertion Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 210000004907 gland Anatomy 0.000 description 1
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Abstract
This invention provides a method for preventing burning out of circuit board caused by short circuit of power supply because of reverse insertion between symmetrical plates, which is to set a direction indication at the edge part of a connector and a central symmetrical point at the centre of the connector; defines a power supply signal through adopting the mode of using the center of the connector as the symmetry when defining each pin signal of the connector between plates, wherein the connectors between plates is the symmetrical connector, and a pin A is defined as the power supply VC when the connector is connected with the power supply VCC; to define a symmetrical pin A1 of the center of the pin A as the power supply VCC or an air interface when reversely inserting. This invention has following advantages: reasonable design, convenient use, effectively preventing the problem that burning out of the power supply caused by reversely inserting the circuit board.
Description
Technical field
The present invention relates to a kind of electronic product production frock technology, specifically a kind of method that prevents power supply short circuit and circuit board burning cause by inverse connection between symmetrical plate.
Background technology
In present design of electronic products, because the reason of design aspect, often adopt two circuit boards even polylith circuit board ways of connecting, promptly a module board is by the mode of mother daughter board connector gland on motherboard, mother daughter board connector often is symmetrical, the signal on the connector have power supply, and other signal.Because connector is symmetrical, so in when assembling carelessness and wrong plug direction easily, thereby cause power supply and ground short circuit or other signal short circuits and burn out chip even circuit board, cause damage and incur loss through delay exploitation or production.
Summary of the invention
The purpose of this invention is to provide a kind of solve between symmetrical plate to connect because of anti-inserted direction cause power supply and ground short circuit or burn out the problem of circuit board with other signal short circuits.
The objective of the invention is to realize in the following manner, in design, portion is provided with direction indication on the limit of connector, at the center of connector the center symmetric points are set, when defining each pin signal of mother daughter board connector, adopt the centrosymmetric mode with connector to define power supply signal, mother daughter board connector is the symmetrical expression connector, when being connected to power supply VCC on the connector, then pin A is defined as power supply VCC; When oppositely pegging graft, the center symmetry pin A1 of pin A is defined as power supply VCC or sky connects.
Advantage of the present invention is, and is reasonable in design, easy to use, prevents that effectively the problem that causes power supply to burn out because of circuit board is anti-inserted from taking place.
Description of drawings
Fig. 1 is correct plugging mode;
Fig. 2 is the opposite direction plugging mode.
Embodiment
The method that prevents power supply short circuit and circuit board burning cause by inverse connection between symmetrical plate of the present invention, be in design, portion is provided with direction indication on the limit of connector, at the center of connector the center symmetric points are set, when defining each pin signal of mother daughter board connector, adopt the centrosymmetric mode with connector to define power supply signal, mother daughter board connector is the symmetrical expression connector, when being connected to power supply VCC on the connector, then pin A is defined as power supply VCC; When oppositely pegging graft, the center symmetry pin A1 of pin A is defined as power supply VCC or sky connects.
Embodiment
The centrosymmetric mode of employing connector is defined as power supply VCC with the symmetrical pin A1 in the center of pin A or sky connects; When module board is connected by connector with motherboard only following situation can appear:
1) when module board correctly is connected by connector with motherboard (not having anti-inserted direction), the pin A of the corresponding motherboard of the pin A of module board; The pin A1 of the corresponding motherboard of pin A1; Can not go wrong this moment.As shown in Figure 1.
2) when module board can not correctly be connected by connector with motherboard, i.e. during wrong plug direction, the pin A1 of the corresponding motherboard of the pin A of module board; The pin A of the corresponding motherboard of pin A1; Because A1 meets power supply VCC or sky connects equally, so power supply and ground short circuit can not occur or burn out the problem of circuit board with other signal short circuits.
Claims (1)
1. method that prevents power supply short circuit and circuit board burning cause by inverse connection between symmetrical plate, it is characterized in that direction indication being set in the limit of connector portion, at the center of connector the center symmetric points are set, when defining each pin signal of mother daughter board connector, adopt centrosymmetric mode to define power supply signal with connector, mother daughter board connector is the symmetrical expression connector, and when being connected to power supply VCC on the connector, then pin A is defined as power supply VCC; When oppositely pegging graft, the center symmetry pin A1 of pin A is defined as power supply VCC or sky connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101575227A CN101369698A (en) | 2008-10-06 | 2008-10-06 | Method for preventing power supply short circuit and circuit board burning cause by inverse connection between symmetrical plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101575227A CN101369698A (en) | 2008-10-06 | 2008-10-06 | Method for preventing power supply short circuit and circuit board burning cause by inverse connection between symmetrical plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101369698A true CN101369698A (en) | 2009-02-18 |
Family
ID=40413387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101575227A Pending CN101369698A (en) | 2008-10-06 | 2008-10-06 | Method for preventing power supply short circuit and circuit board burning cause by inverse connection between symmetrical plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101369698A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436434A (en) * | 2011-10-13 | 2012-05-02 | 深圳桑菲消费通信有限公司 | I/O (input/output) interface design method |
| CN104345794A (en) * | 2013-07-31 | 2015-02-11 | 和硕联合科技股份有限公司 | Electronic device, base and method for switching pin function of connector |
| CN105006695A (en) * | 2015-06-29 | 2015-10-28 | 浪潮集团有限公司 | Mis-insertion preventing pin lead-out signal circuit design method |
-
2008
- 2008-10-06 CN CNA2008101575227A patent/CN101369698A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436434A (en) * | 2011-10-13 | 2012-05-02 | 深圳桑菲消费通信有限公司 | I/O (input/output) interface design method |
| CN104345794A (en) * | 2013-07-31 | 2015-02-11 | 和硕联合科技股份有限公司 | Electronic device, base and method for switching pin function of connector |
| CN104345794B (en) * | 2013-07-31 | 2017-09-05 | 和硕联合科技股份有限公司 | Electronic device, base and method for switching pin function of connector |
| CN105006695A (en) * | 2015-06-29 | 2015-10-28 | 浪潮集团有限公司 | Mis-insertion preventing pin lead-out signal circuit design method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090218 |