CN208255337U - A kind of computer main board protection component - Google Patents
A kind of computer main board protection component Download PDFInfo
- Publication number
- CN208255337U CN208255337U CN201820718940.8U CN201820718940U CN208255337U CN 208255337 U CN208255337 U CN 208255337U CN 201820718940 U CN201820718940 U CN 201820718940U CN 208255337 U CN208255337 U CN 208255337U
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- China
- Prior art keywords
- fuse
- pin
- computer
- main board
- protection
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Abstract
The utility model relates to computer fittings technical fields; refer in particular to a kind of computer main board protection component; including pcb board; pcb board is provided with computer plug J1, testing jack J2 and protection circuit; protecting circuit includes light emitting diode D1, fuse F1, fuse F2 and resistance R3; what one end of fuse F1 was connected to computer plug connects electric pin 1; the other end of fuse F1 is connected to the anode of light emitting diode D1; the cathode of light emitting diode D1 is connected to one end of fuse F2, and what the other end of fuse F2 was connected to computer plug J1 connects electric pin 4.The utility model is by being provided with protection circuit; short circuit current is avoided to flow in computer main board by fuse F1 and F2; and judge whether circuit board to be tested breaks down by light emitting diode D1; the circuit board of failure can be disconnected with computer main board in time by tester, to ensure that computer main board is not burned.
Description
Technical field
The utility model relates to computer fittings technical fields, refer in particular to a kind of computer main board protection component.
Background technique
Nowadays, many circuit main boards will be connected to computer and be tested after welding is completed.And it is well-known
, in soldered circuit board, it is easy to the phenomenon that connecting tin generation can be led to due to slightly deviation occurs in the position that tin is fallen, due to
The position of scolding tin is smaller, therefore producer is difficult by visually finding these faults at a glance.If these circuit boards are inserted directly into
Computer is tested, then will lead to burning out for computer main board.
Summary of the invention
The utility model provides a kind of computer main board protection component for problem of the prior art, can be avoided asking
After the circuit board access computer of topic, the phenomenon that computer main board is burnt out.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution:
A kind of computer main board provided by the utility model protects component, including pcb board, the pcb board to be provided with for inserting
Computer plug J1, the guarantor for the testing jack J2 of external test circuit board and for protecting computer main board for entering computer interface
Protection circuit；The computer plug J1 includes connecing electric pin 1,4, data pin 2 and 3, grounding pin 5 and 6, the grounding pin 5
Fuse F3, the fuse F3 ground connection are connected with 6；
The protection circuit includes light emitting diode D1, fuse F1 and fuse F2, one end of the fuse F1
It is connected to the electric pin 1 that connects of the computer plug J1, the other end of the fuse F1 is connected to the light emitting diode D1's
Anode, the cathode of the light emitting diode D1 are connected to one end of the fuse F2, the other end connection of the fuse F2
Electric pin 4 is connect in the computer plug J1；The other end of fuse F1 and described one end of fuse F2 are also connected with
In the testing jack J2.
It further, further include protection chip U1, the protection chip U1 is NUP4201MR6 chip；The protection chip
The pin 1 of U1 is connected to the data pin 3 of the computer plug J1, and the pin 2 of the protection chip U1 is connected to the computer
Plug J1's connects electric pin 4, and what the pin 5 of the protection chip U1 was connected to the computer plug J1 meets electric pin 1, the guarantor
The pin 6 of shield chip U1 is connected to the data pin 2 of the computer plug J1.
Further, protective resistance R3 is additionally provided between the fuse F1 and the light emitting diode D1.
Further, the protection circuit further includes protective resistance R1 and protective resistance R2, and the one of the protective resistance R1
End is connected to the data pin 2 of the computer plug J1, and the other end of the protective resistance R1 is connected to the testing jack J2；
One end of the protective resistance R2 is connected to the data pin 3 of the computer plug J1, and the other end of the protective resistance R2 connects
It is connected to the testing jack J2.
Further, the blowout current of the fuse F1, the fuse F2 and the fuse F3 are 800mA.
Further, protection cap is installed, the protection cap is spirally connected with the pcb board at the top of the pcb board.The electricity
Brain plug J1, the testing jack J2, the fuse F3 and the protection circuit are respectively positioned in the protection cap.
Further, the testing jack J2 includes pin B1-B4 and pin T1-T4, the pin B1 of the testing jack
It is connected to the other end of the fuse F1, the pin B4 of the testing jack is connected to the another of the fuse F2
End, the pin B2 of the testing jack are connected to the data pin 2 of the computer plug J1, and the pin B3 of the testing jack connects
It is connected to the data pin 3 of the computer plug J1；The pin T1-T4 of the testing jack is used for external circuit master to be tested
Plate.
The utility model has the beneficial effects that the utility model by being provided with protection circuit, passes through fuse F1 and insurance
Silk F2 judges circuit to be tested by the way that whether light emitting diode D1 shines to avoid short circuit current from flowing in computer main board
Whether plate breaks down, and the circuit board of failure can be disconnected with computer main board in time by tester, to ensure that electricity
Brain mainboard is not burned.
Detailed description of the invention
Fig. 1 is the principles of the present invention figure.
Fig. 2 is the circuit diagram of the utility model.
Fig. 3 is the side view of the utility model.
Appended drawing reference: 1-pcb board, 2-protection caps.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made below with reference to embodiment and attached drawing further
Explanation, the content that embodiment refers to not is restriction to the utility model.It is practical to 3 pairs of sheets of attached drawing below in conjunction with attached drawing 1
It is novel to be described in detail.
A kind of computer main board provided by the utility model protects component, including pcb board 1, and the pcb board 1, which is provided with, to be used for
It is inserted into the computer plug J1 of computer interface, for the testing jack J2 of external test circuit board and for protecting computer main board
Protect circuit；The computer plug J1 includes connecing electric pin 1,4, data pin 2 and 3, grounding pin 5 and 6, the grounding pin
5 and 6 are connected with fuse F3, the fuse F3 ground connection；Specifically, the protection circuit includes light emitting diode D1, insurance
Silk F1, fuse F2 and resistance R3, what one end of the fuse F1 was connected to the computer plug J1 meets electric pin 1, institute
The other end for stating fuse F1 is connected to the anode of the light emitting diode D1, and the cathode of the light emitting diode D1 is connected to institute
State one end of fuse F2, what the other end of the fuse F2 was connected to the computer plug J1 connects electric pin 4；Fuse F1
The other end and described one end of fuse F2 be also attached to the testing jack J2.
When the utility model is used, the USB interface of computer plug J1 insertion computer, then light emitting diode D1 can be because
Connect electricity and shine, show the utility model insert can normal use computer interface；Then circuit board to be tested is inserted into
In test interface J2, if there is not the failure welded, circuit normally, light emitting diode D1 meeting in circuit board to be tested
Luminance is kept, tester can test the circuit board；If there is Lian Xishi in circuit board to be tested, the circuit
Plate can be short-circuit, and when being inserted into test interface J2, short circuit current can be blown fuse, and light emitting diode D1 is because power-off is without sending out
Light, tester can therefrom know that even tin occurs in circuit board to be tested, to be repaired even if removing the circuit board.This reality
With novel by being provided with protection circuit, short circuit current is avoided to flow in computer main board by fuse F1 and fuse F2,
And judge whether circuit board to be tested breaks down by the way that whether light emitting diode D1 shines, allow tester being capable of handle in time
The circuit board of failure is disconnected with computer main board, to ensure that computer main board is not burned.
In the present embodiment, the utility model further includes protection chip U1, and the protection chip U1 is NUP4201MR6 core
Piece；The pin 1 of the protection chip U1 is connected to the data pin 3 of the computer plug J1, the pin 2 of the protection chip U1
It is connected to the electric pin 4 that connects of the computer plug J1, the pin 5 of the protection chip U1 is connected to connecing for the computer plug J1
The pin 6 of electric pin 1, the protection chip U1 is connected to the data pin 2 of the computer plug J1.The utility model is by setting
NUP4201MR6 chip is equipped with as protection chip U1 and further protects computer to cooperate with fuse F1 and fuse F2
Plug J1 does not flow through short circuit current, to ensure that the computer main board connecting with computer plug J1 will not be because passing through short circuit current
And it burns.
In the present embodiment, it is additionally provided with protective resistance R3 between the fuse F1 and the light emitting diode D1, uses
The electric current for passing through light emitting diode D1 is stablized in the blow-out current value of fuse F1 and fuse F2 hereinafter, avoiding because of voltage
Fluctuation causes to increase the fuse F1 and fuse F2 that fused suddenly by the electric current of light emitting diode D1, to ensure that this
Utility model will not malfunction.
In the present embodiment, the protection circuit further includes protective resistance R1 and protective resistance R2, the protective resistance R1
One end be connected to the data pin 2 of the computer plug J1, the other end of the protective resistance R1 is connected to the test and inserts
Mouth J2；One end of the protective resistance R2 is connected to the data pin 3 of the computer plug J1, and the protective resistance R2's is another
End is connected to the testing jack J2.Protective resistance R1 and protective resistance R2 is used to stablize computer plug J1 and testing jack J2
Between the numerical value of data current that passes through, to ensure that the stability of data current.
Specifically, the blowout current of the fuse F1, the fuse F2 and the fuse F3 are 800mA, energy
Enough guarantee that the utility model can reliably be connected in the case where circuit board to be tested is non-shorting.
In the present embodiment, the top of the pcb board 1 is equipped with protection cap 2, the protection cap 2 and 1 spiral shell of pcb board
It connects.The computer plug J1, the testing jack J2, the fuse F3 and the protection circuit are respectively positioned on the protection cap 2
It is interior.The setting of protection cap 2, with to avoid extraneous particle or moisture etc. and the computer plug J1 or testing jack J2 or
The fuse F3 or the protection electrical contact, the phenomenon that avoiding the utility model failure caused by extraneous factor hair
It is raw.
Specifically, the testing jack J2 includes pin B1-B4 and pin T1-T4, the pin B1 of the testing jack connects
It is connected to the other end of the fuse F1, the pin B4 of the testing jack is connected to the other end of the fuse F2,
The pin B2 of the testing jack is connected to the data pin 2 of the computer plug J1, the pin B3 connection of the testing jack
In the data pin 3 of the computer plug J1；The pin T1-T4 of the testing jack is used for external circuit main board to be tested.
The above is only the utility model preferred embodiment, is not made in any form to the utility model
Limitation, although the utility model is disclosed as above with preferred embodiment, is not intended to limit the utility model, any to be familiar with sheet
Technical professional is not departing within the scope of technical solutions of the utility model, makes when using the technology contents of the disclosure above
A little change or the equivalent embodiment for being modified to equivalent variations, but it is all without departing from the content of the technical scheme of the utility model, foundation
The utility model technology refers to any simple modification, equivalent change and modification to the above embodiments, belongs to practical
In the range of new technique scheme.
Claims (7)
1. a kind of computer main board protects component, it is characterised in that: including pcb board, the pcb board is provided with to be connect for being inserted into computer
The computer plug J1 of mouth, the protection circuit for the testing jack J2 of external test circuit board and for protecting computer main board；
The computer plug J1 includes connecing electric pin 1,4, data pin 2 and 3, grounding pin 5 and 6, and the grounding pin 5 and 6 connects
There are fuse F3, the fuse F3 ground connection；
The protection circuit includes one end connection of light emitting diode D1, fuse F1 and fuse F2, the fuse F1
In the electric pin 1 that connects of the computer plug J1, the other end of the fuse F1 is connected to the anode of the light emitting diode D1,
The cathode of the light emitting diode D1 is connected to one end of the fuse F2, and the other end of the fuse F2 is connected to described
Computer plug J1's connects electric pin 4；The other end of fuse F1 and described one end of fuse F2 are also attached to described
Testing jack J2.
2. computer main board according to claim 1 protects component, it is characterised in that: further include protection chip U1, the guarantor
Shield chip U1 is NUP4201MR6 chip；The pin 1 of the protection chip U1 is connected to the data pin of the computer plug J1
The pin 2 of 3, the protection chip U1 are connected to the electric pin 4 that connects of the computer plug J1, the pin 5 of the protection chip U1
It is connected to the electric pin 1 that connects of the computer plug J1, the pin 6 of the protection chip U1 is connected to the number of the computer plug J1
According to pin 2.
3. computer main board according to claim 1 protects component, it is characterised in that: the fuse F1 and described luminous two
Protective resistance R3 is additionally provided between pole pipe D1.
4. computer main board according to claim 1 protects component, it is characterised in that: the protection circuit further includes protection electricity
Resistance R1 and protective resistance R2, one end of the protective resistance R1 are connected to the data pin 2 of the computer plug J1, the protection
The other end of resistance R1 is connected to the testing jack J2；One end of the protective resistance R2 is connected to the computer plug J1's
Data pin 3, the other end of the protective resistance R2 are connected to the testing jack J2.
5. computer main board according to claim 1 protects component, it is characterised in that: the fuse F1, the fuse
The blowout current of F2 and the fuse F3 are 800mA.
6. computer main board according to claim 1 protects component, it is characterised in that: be equipped with guarantor at the top of the pcb board
Protecting cover, the protection cap are spirally connected with the pcb board；The computer plug J1, the testing jack J2, the fuse F3 and institute
Protection circuit is stated to be respectively positioned in the protection cap.
7. computer main board according to claim 1 protects component, it is characterised in that: the testing jack J2 includes pin
B1-B4 and pin T1-T4, the pin B1 of the testing jack are connected to the other end of the fuse F1, the test
The pin B4 of socket is connected to the other end of the fuse F2, and the pin B2 of the testing jack is connected to the computer plug
The data pin 2 of J1, the pin B3 of the testing jack are connected to the data pin 3 of the computer plug J1；The test is inserted
The pin T1-T4 of mouth is used for external circuit main board to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820718940.8U CN208255337U (en) | 2018-05-14 | 2018-05-14 | A kind of computer main board protection component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820718940.8U CN208255337U (en) | 2018-05-14 | 2018-05-14 | A kind of computer main board protection component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208255337U true CN208255337U (en) | 2018-12-18 |
Family
ID=66480112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820718940.8U Expired - Fee Related CN208255337U (en) | 2018-05-14 | 2018-05-14 | A kind of computer main board protection component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208255337U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449871A (en) * | 2018-12-25 | 2019-03-08 | 互联智控科技（天津）有限公司 | NiCS intelligent controller port protector |
-
2018
- 2018-05-14 CN CN201820718940.8U patent/CN208255337U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449871A (en) * | 2018-12-25 | 2019-03-08 | 互联智控科技（天津）有限公司 | NiCS intelligent controller port protector |
| CN109449871B (en) * | 2018-12-25 | 2023-07-18 | 互联智控科技（天津）有限公司 | NiCS intelligent controller port protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181218 Termination date: 20210514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |