CN210894608U - Circuit board auxiliary maintenance device - Google Patents
Circuit board auxiliary maintenance device Download PDFInfo
- Publication number
- CN210894608U CN210894608U CN201921358465.9U CN201921358465U CN210894608U CN 210894608 U CN210894608 U CN 210894608U CN 201921358465 U CN201921358465 U CN 201921358465U CN 210894608 U CN210894608 U CN 210894608U
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- board
- maintenance device
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Abstract
The utility model belongs to the detection field of electron technique relates to a circuit board auxiliary maintenance device. The method comprises the following steps: the device comprises a first connector (1), a second connector (2), a jumper (3), a capacitor (4) and a printed board (5); the utility model discloses a public head is connected with quick-witted case, and female head is connected with the predetermined circuit board, will predetermine the circuit board after connecting and hold up from the machine case, and the printed line electrical connection of the PCB of predetermined circuit board connector and quick-witted case connector through the device can directly be with the test point of the circuit board of direct test prediction of the probe of oscilloscope and digital numerous table. The printed line of the PCB is provided with a jumper, each signal connected with the case can be conveniently disconnected, the fault mode that the signal cannot be input from the case to the predetermined circuit board can be simulated, a signal source can be connected to the disconnected cross-connector, and the corresponding fault mode can be simulated by inputting the required signal.
Description
Technical Field
The utility model belongs to the field of electronic technology's detection, a device of circuit board auxiliary maintenance is related to.
Background
Several circuit boards of the laser inertial navigation system are vertically inserted in a matched case side by side. When the fault maintenance detection needs to test the internal test points of the circuit board, the element surfaces and the welding surfaces on the two side surfaces of the circuit board can not be directly tested by using an oscilloscope and a probe of a digital frequently-used meter because the element surfaces and the welding surfaces are mutually shielded, and the test can be carried out only by welding an extended lead on the test points of the circuit board. The method has the disadvantages of damage to the bonding pad of the circuit board test point, labor and time consumption for welding the lead and large signal interference.
Disclosure of Invention
The utility model aims at providing a device of circuit board maintenance. The test point on the circuit board can be subjected to fault maintenance detection without welding an extension line on the test point.
The utility model discloses the technical scheme who takes does, a device of supplementary maintenance of circuit board, a serial communication port, include: the device comprises a first connector 1, a second connector 2, a jumper 3, a capacitor 4 and a printed board 5; the first connector 1 and the second connector 2 are soldered at both ends of the printed board 5. The jumper 3 is correspondingly connected with the jack of the first connector 1 and the contact pin of the second connector 2 through the printed lines of the printed board 5; the length of the printed board 5 is longer than that of the predetermined circuit board.
The capacitor 4 is connected to the printed board 5. And filtering the power supply of the predetermined circuit board. The number is equal to the number of power supplies.
The wiring terminal 6 is connected to the printed board 5 and led out from the ground wire of the pre-determination circuit board, so that the clamping of the oscilloscope ground wire is facilitated.
The jacks of the first connector 1 and the pins of the second connector 2 are the same in number.
The number of the jumpers 3 is the same as the number of the jacks of the first connector 1 and the pins of the second connector 2.
The fixing pin 7 is mounted on the printed board 5 and is fixedly connected with holes at two ends of the first connector 1 and the second connector 2 through screws.
The utility model has the advantages and beneficial effects: the utility model discloses a core part can be through the corresponding failure mode of the jumper part input signal simulation of the device. The male head of the device is connected with the case, the female head is connected with the pre-determined circuit board, the pre-determined circuit board is supported from the case after connection, the pre-determined circuit board connector is electrically connected with the case connector through the printed line of the PCB of the device, and the test point of the pre-determined circuit board can be directly tested by using an oscilloscope and a probe of a digital frequently-used meter. The jumper is arranged on the printed line of the PCB of the device, each signal connected between the pre-determined circuit board and the case can be conveniently disconnected, the fault mode that the signal cannot be input from the case to the pre-determined circuit board is simulated, a signal source can be connected to the disconnected cross-over device, and the corresponding fault mode is simulated by inputting the required signal. The capacitor arranged by the device can filter incoming lines of a power supply, and interference is reduced. The wiring terminal is led out from the ground wire of the pre-determination circuit board, so that the clamping of the oscilloscope ground wire is facilitated.
Drawings
Figure 1 the structure of the present invention is schematically illustrated
Wherein: 1-first connector, 2-second connector, 3-jumper, 4-capacitor, 5-printed board, 6-binding post, 7-fixed pin
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1, an apparatus for assisting maintenance of a circuit board, comprising: the device comprises a first connector 1, a second connector 2, a jumper 3, a capacitor 4, a printed board 5, a binding post 6 and a fixing pin 7; the first connector 1 and the second connector 2 are soldered at both ends of the printed board 5. The jumper 3 is correspondingly connected with the jack of the first connector 1 and the contact pin of the second connector 2 through the printed lines of the printed board 5; the length of the printed board 5 is larger than that of the predetermined circuit board; the capacitors 4 are connected to the printed board 5 and used for filtering the power supplies of the pre-determined circuit board, and the number of the capacitors is equal to that of the power supplies; the wiring terminal 6 is connected to the printed board 5 and is led out from the ground wire of the pre-determination circuit board, so that the clamping of the ground wire of the oscilloscope is facilitated; the quantity of the jacks of the first connector 1 is the same as that of the pins of the second connector 2; the number of the jumpers 3 is the same as the number of the jacks of the first connector 1 and the pins of the second connector 2; the fixing pins 7 are mounted on the printed board 5 and fixedly connected to holes at both ends of the first connector 1 and the second connector 2 by screws.
The working process is as follows: the device is loaded into a case, and the first connector 1 is connected to the connector of the case, and the second connector 2 is connected to the connector of the predetermined circuit board. The jumpers 3 are all in a short-circuited state. At this time, the wiring terminal 6 of the device can be connected by using an oscilloscope ground wire or a black pen meter of a digital frequently-used meter, and a probe of the oscilloscope or a red pen meter of the digital frequently-used meter can directly detect the test point of the predetermined circuit board. The jumper 3 corresponding to the signal with the preset fault mode is in a disconnected state, the fault mode that the signal cannot be input from the chassis to the pre-set circuit board can be simulated, and a signal source can be connected to one end of the disconnected span device 5 connected with the pre-set circuit board to input a required signal to simulate the corresponding fault mode.
Claims (6)
1. An auxiliary maintenance device for a circuit board, comprising: the device comprises a first connector (1), a second connector (2), a jumper (3), a capacitor (4) and a printed board (5); the first connector (1) and the second connector (2) are welded at two ends of the printed board (5), and the jumper (3) is correspondingly connected with the jack of the first connector (1) and the contact pin of the second connector (2) through the printed lines of the printed board (5); the length of the printed board (5) is larger than that of the predetermined circuit board.
2. Circuit board servicing device according to claim 1, characterized in that the capacitors (4) are connected to the printed board (5) in a number equal to the number of power supplies.
3. The auxiliary maintenance device for the circuit board as claimed in claim 2, wherein the printed board (5) is connected with a terminal (6) which is led out from the ground wire of the pre-determined circuit board to facilitate the clamping of the ground wire of the oscilloscope.
4. Auxiliary maintenance device for circuit boards according to claim 1, characterized in that the number of jacks of the first connector (1) and the number of pins of the second connector (2) are the same.
5. Auxiliary maintenance device for circuit boards according to claim 1, characterized in that the jumpers (3) are the same in number as the jacks of the first connector (1) and the pins of the second connector (2).
6. The auxiliary maintenance device for the circuit board as claimed in claim 1, wherein the printed board (5) is provided with a fixing pin (7), and the fixing pin (7) is fixedly connected with the holes at the two ends of the first connector (1) and the second connector (2) through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921358465.9U CN210894608U (en) | 2019-08-20 | 2019-08-20 | Circuit board auxiliary maintenance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921358465.9U CN210894608U (en) | 2019-08-20 | 2019-08-20 | Circuit board auxiliary maintenance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210894608U true CN210894608U (en) | 2020-06-30 |
Family
ID=71323737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921358465.9U Active CN210894608U (en) | 2019-08-20 | 2019-08-20 | Circuit board auxiliary maintenance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210894608U (en) |
-
2019
- 2019-08-20 CN CN201921358465.9U patent/CN210894608U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |