CN211528618U - Open-short circuit testing device - Google Patents
Open-short circuit testing device Download PDFInfo
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- CN211528618U CN211528618U CN201922488001.6U CN201922488001U CN211528618U CN 211528618 U CN211528618 U CN 211528618U CN 201922488001 U CN201922488001 U CN 201922488001U CN 211528618 U CN211528618 U CN 211528618U
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Abstract
The utility model provides an open-short circuit testing device, which is used for carrying out open-short circuit testing on a connector on a flexible circuit board, and comprises a testing board and testing circuit components arranged on the testing board, wherein a testing circuit is arranged between the testing circuit components, the testing circuit comprises a power supply, a resistor and a first testing circuit, the second test circuit, the connector, the indicator, be equipped with first pin, second pin and third pin on the connector, first pin, mutual interval between second pin and the third pin, first pin and second pin are the output pin, the third pin is the ground connection pin, first pin and first test circuit connection, the second pin and second test circuit connection, first test circuit and second test circuit are parallelly connected, be equipped with first pilot lamp and second pilot lamp on the indicator, first pilot lamp is established ties with first pin, the second pilot lamp is established ties with the second pin. The testing device can simply and accurately detect the open circuit and short circuit conditions of the connector on the flexible circuit board.
Description
Technical Field
The utility model relates to an open, short circuit test technical field, in particular to open, short circuit test device.
Background
Along with the continuous development of electronic consumer products, consumers prefer electronic consumer products with high screen occupation ratio, light weight, thinness and high endurance, and in order to meet the requirements of high screen occupation ratio, light weight and high endurance, the related design must be compact to avoid more spaces, so that the main FPC (Flexible Printed Circuit) connected with the display screen at present only plays a role in transmitting display signals and also plays a role in transmitting other non-display signals on the mainboard.
Therefore, people pay more and more attention to the welding quality of the FPC connector, when the FPC connector is abnormally welded due to the fact that tin is less, tin is connected or open circuit and the like, the products can fail in some functions, and the defects are more and are not easy to detect.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model aims to provide a can be succinctly accurate detect out opening, the short circuit testing arrangement of the opening of connector, the short circuit condition on the flexible circuit board.
An open-short circuit testing device is used for carrying out open-short circuit testing on a connector on a flexible circuit board, and comprises a testing board and testing circuit components arranged on the testing board, wherein testing circuits are arranged among the testing circuit components, each testing circuit comprises a power supply, a resistor, a first testing circuit, a second testing circuit, a connector and an indicator, a first pin, a second pin and a third pin are arranged on the connector, the first pin, the second pin and the third pin are mutually spaced, the first pin and the second pin are output pins, the third pin is a grounding pin, the first pin is connected with the first testing circuit, the second pin is connected with the second testing circuit, the first testing circuit is connected with the second testing circuit in parallel, and a first indicator lamp and a second indicator lamp are arranged on the indicator, the first indicator light is connected with the first pin in series, and the second indicator light is connected with the second pin in series.
In the above scheme, the connector is provided with a first pin, a second pin and a third pin, the first pin and the second pin are output pins, the first pin, the second pin and the third pin are arranged at intervals, the first pin is connected with a first indicator lamp, the second pin is connected with a second indicator lamp, the first pin and the first indicator lamp are connected in series on a first test circuit, the second pin and the second indicator lamp are connected in series on a second test circuit, and the first circuit is connected in parallel with the second circuit, therefore, when the first test circuit is connected with the second test circuit and is not connected, if the first pin is intact, the corresponding first indicator lamp will be lighted, if the first pin and the second pin are short-circuited, the second indicator lamp corresponding to the second pin at the short-circuited position will be lighted, if the first pin is damaged, the first test circuit can not be completely connected or short-circuited with the third pin, the corresponding first indicator light cannot be lighted, so that the testing device can simply and accurately detect the open circuit and short circuit of the connector on the flexible circuit board.
Further, the test circuit further comprises a switch, a first gear and a second gear are arranged on the switch, when the switch is in the first gear, the first test circuit is connected, and the second test circuit is disconnected, and when the switch is in the second gear, the second test circuit is connected, and the first test circuit is disconnected.
Furthermore, the power supply is connected with the resistor, and the resistor is connected with the switch.
Furthermore, the number of the first pins is at least two groups, the number of the second pins is at least two groups, the number of the first indicator lights corresponds to that of the first pins, and the number of the second indicator lights corresponds to that of the second pins.
Furthermore, the test circuit further comprises a third test circuit, a third indicator light is arranged on the indicator, the third indicator light and one of the first pins or one of the second pins are connected in series on the third test circuit, and the third test circuit is connected in parallel with the first test circuit and the second test circuit.
Further, the number of the third indicator lamps is one group.
Further, the third test line is connected in series with the power supply and the resistor.
Furthermore, the test circuit assembly comprises a first circuit board and a second circuit board, wherein a mounting groove is formed in the test board, and the first circuit board and the second circuit board are arranged in the mounting groove.
Furthermore, the power supply and the resistor are arranged on the first circuit board, and the indicator is arranged on the second circuit board.
Further, the first indicator light and the second indicator light are LED lights, and the colors of the first indicator light and the second indicator light are different.
Drawings
Fig. 1 is a schematic diagram of a circuit structure of the middle open/short circuit testing device of the present invention;
fig. 2 is a schematic view of a connection structure between a connector and a second circuit board in the middle open/short circuit testing apparatus of the present invention.
Description of the symbols of the main elements
| |
10 | |
11 |
| Resistance (RC) | 12 | Switch with a |
20 |
| |
21 | |
22 |
| Connector with a |
30 | |
31 |
| |
32 | Third base pin | 33 |
| |
40 | |
41 |
| |
42 | Third indicator light | 43 |
| A |
23 | |
24 |
| |
13 |
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-2, an open/short circuit testing apparatus for testing a connector on a flexible circuit board includes a testing board and a testing circuit assembly disposed on the testing board, a testing circuit is disposed between the testing circuit assemblies, the testing circuit includes a power source 11, a resistor 12, a first testing circuit 23, a second testing circuit 24, a connector 30, and an indicator, a first pin 31, a second pin 32, and a third pin 33 are disposed on the connector 30, the first pin 31, the second pin 32, and the third pin 33 are spaced from each other, the first pin 31 and the second pin 32 are output pins, the third pin 33 is a ground pin, the first pin 31 is connected to the first testing circuit 23, the second pin 32 is connected to the second testing circuit 24, the first test circuit 23 is connected in parallel with the second test circuit 24, the indicator is provided with a first indicator light 41 and a second indicator light 42, the first indicator light 41 is connected in series with the first pin 31, and the second indicator light 42 is connected in series with the second pin 32.
In the above solution, the connector is provided with a first pin 31, a second pin 32 and a third pin 33, the first pin 31 and the second pin 32 are output pins, the first pin 31, the second pin 32 and the third pin 33 are arranged at intervals, the first pin 31 is connected with a first indicator light 41, the second pin 32 is connected with a second indicator light 42, and the first pin 31 and the first indicator light 41 are connected in series on the first test circuit 23, the second pin 32 and the second indicator light 42 are connected in series on the second test circuit 24, and the first test circuit 23 is connected in parallel with the second test circuit 24, so that when the first test circuit 23 is connected with the second test circuit 24 and is not connected, if the first pin 31 is intact, the first indicator light 41 corresponding to the first pin 31 is turned on, and if the first pin 31 and the second pin 32 are shorted, the second indicator light 42 corresponding to the second pin 32 at the shorted position is turned on, if the first pin 31 is damaged and the first test circuit 23 cannot be completely connected or short-circuited with the third pin 33, the corresponding first indicator light will not be turned on, so that the test device can simply and accurately detect the open or short circuit condition of the connector on the flexible circuit board.
The first pin 31 and the second pin 32 are both pins on the connector 30, and may also be referred to as gold fingers or pins, the first pin 31 and the second pin 32 may be pins of the same type or different types, and in this embodiment, the first pin 31 and the second pin 32 are mainly different in that they are connected in series on different test lines.
It should be noted that before the open/short circuit testing device in this embodiment is used to test the connector 30 on the flexible circuit board, each component on the open/short circuit testing device is tested and is in a good condition.
In this embodiment, in order to separately connect the first test line 23 and the second test line 24, the test circuit further includes a switch 20, a first shift position 21 and a second shift position 22 are provided on the switch 20, when the switch 20 is in the first shift position 21, the first test line 23 is connected, and the second test line 24 is disconnected, and when the switch 20 is in the second shift position 22, the second test line 24 is connected, and the first test line 23 is disconnected. Specifically, the power supply 11 is connected to the resistor 12 first, and the resistor 12 is connected to the switch 20. As mentioned above, the first test line 23 and the second test line 24 are connected in parallel, so when the switch 20 is switched to the first position 21, the connection of the first test line 23 will not affect the second test line 24, at this time, if the first pin 31 is intact, the corresponding first indicator lamps 41 will all be turned on, if the first indicator lamp 41 is not lit, it can be determined that the first pin 31 is damaged and an open circuit occurs, and if the adjacent position of the first pin 31 is provided with the third pin 33, it may be that a short circuit occurs with the third pin 33. If the second indicator light 42 is turned on, it indicates that the first line and the second line are short-circuited, and since the components on the testing apparatus have been tested before use, it can be determined that a short-circuit occurs between the second pin 32 corresponding to the second indicator light 42 and the adjacent first pin 31 on the connector 30.
Correspondingly, when the switch 20 is switched to the second position 22, the second test line 24 is switched on without affecting the first test line 23, and at this time, if the second pin 32 is intact, the corresponding second indicator lamps 42 are all turned on, and if the second indicator lamps 42 are not turned on, it can be determined that the second pin 32 is damaged so as to cause an open circuit, and if the third pin 33 is disposed adjacent to the second pin 32, there is a possibility that a short circuit occurs with the third pin 33. If the first indicator light 41 is turned on, it indicates that the second line and the first line are short-circuited, and since the components on the testing apparatus have been tested before use, it can be determined that a short-circuit occurs between the first pin 31 corresponding to the first indicator light 41 and the adjacent second pin 32 on the connector 30.
The pins on the connector 30 are used for transmitting signals to the outside, functions of each pin may be different, and a plurality of pins are provided on one connector 30, in this embodiment, the pins on the connector 30 are divided into three groups, which are a first pin 31, a second pin 32, and a third pin 33, the number of the first pins 31 is at least two groups, the number of the second pins 32 is at least two groups, the number of the first indicator lamps 41 corresponds to the first pin 31, and the number of the second indicator lamps 42 corresponds to the second pin 32. Specifically, as shown in fig. 2, the first pin 31, the second pin 32, and the third pin 33 are spaced apart from each other, generally, a short circuit between the pins on the connector 30 occurs only between adjacent pins, usually due to a production error, in this embodiment, the adjacent first pin 31 must be the second pin 32 or the third pin 33, so that when the short circuit occurs between the two, an abnormality indication easy to determine must occur in the indicator when the first test line 23 or the second test line 24 is connected. If the first pin 31 is adjacent to the first pin 31, the first indicator lamp 41 is still lit, making it difficult to determine whether there is a short circuit therein.
In addition, in this embodiment, the test circuit further includes a third test line 13, a third indicator light 43 is disposed on the indicator, the third indicator light 43 is connected in series with one of the first pins 31 or one of the second pins 32 on the third test line 13, and the third test line 13 is connected in parallel with the first test line 23 and the second test line 24. The third test circuit 13 is a normally-on circuit for indicating the stability of the front-end test circuit, i.e. the stability of the connection circuit between the front-end power supply 11 and the resistor 12, and when the power supply 11, the resistor 12 and the third test circuit 13 are stably connected, the third indicator lamp 43 is normally on.
The number of the third indicator lamps 43 is one group because it is only used for indication. If the third indicator lamp 43 is not turned on and the switch 20 is switched to the first test circuit 23 or the second test circuit 24, the first indicator lamp 41 or the second indicator lamp 42 is turned on, and if neither the first indicator lamp 41 nor the second indicator lamp 42 is turned on, it indicates that the front-end test circuit is damaged.
Wherein the third test line 13 is connected in series with the power supply 11 and the resistor 12. The front-end test circuit mainly comprises a power supply 11 and a resistor 12, wherein the power supply 11 is a power supply element of the whole test device, the whole test device can test the connector 30 only when the power supply 11 is available, the indicator can indicate, and the resistor 12 plays a role in protecting the whole circuit in order to avoid overlarge current in the circuit.
Further, the test circuit assembly comprises a first circuit board 10 and a second circuit board 40, wherein a mounting groove is formed in the test board, and the first circuit board 10 and the second circuit board 40 are arranged in the mounting groove. In this embodiment, the first Circuit Board 10 and the second Circuit Board 40 are both PCBs (Printed Circuit boards), which can be used as supporting bodies of electronic components and carriers for electrical connection of the electronic components.
Specifically, the power source 11 and the resistor 12 are disposed on the first circuit board 10, and the indicator is disposed on the second circuit board 40. The first indicator lamp 41, the second indicator lamp 42, and the third indicator lamp 43 are fixed to the second circuit board 40 by soldering.
More specifically, the first indicator light 41 and the second indicator light 42 are LED lights, and the first indicator light 41 and the second indicator light 42 are different in color. Therefore, the condition that each indicator light is on can be better distinguished, and the open-circuit and short-circuit conditions can be conveniently judged.
To sum up, when the open-short circuit testing device is used, the power supply 11, the resistor 12 and the third testing circuit 13 are firstly connected, then the first pin 31 on the connector 30 is connected with the first indicator lamp 41, the second pin 32 is connected with the second indicator lamp 42, then the open-short circuit condition of the first pin 31 and the second pin 32 on the connector 30 is tested through the gear position of the change-over switch 20, and the open-short circuit condition of the connector 30 on the flexible circuit board can be simply and accurately detected by the open-short circuit testing device
The above-described embodiments describe the technical principles of the present invention, and these descriptions are only for the purpose of explaining the principles of the present invention, and should not be interpreted as limiting the scope of the present invention in any way. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. The utility model provides an open, short circuit testing arrangement for to connector open, short circuit test on the flexible circuit board, its characterized in that: comprises a test board and test circuit components arranged on the test board, wherein a test circuit is arranged between the test circuit components, the test circuit comprises a power supply, a resistor, a first test circuit, a second test circuit, a connector and an indicator, the connector is provided with a first pin, a second pin and a third pin which are spaced from each other, the first pin and the second pin are output pins, the third pin is a grounding pin, the first pin is connected to the first test line, the second pin is connected to the second test line, the first test circuit is connected with the second test circuit in parallel, the indicator is provided with a first indicator light and a second indicator light, the first indicator light is connected with the first pin in series, and the second indicator light is connected with the second pin in series.
2. The open-short circuit test device according to claim 1, wherein: the test circuit further comprises a switch, a first gear and a second gear are arranged on the switch, when the switch is in the first gear, the first test circuit is connected, the second test circuit is disconnected, and when the switch is in the second gear, the second test circuit is connected, and the first test circuit is disconnected.
3. The open-short circuit test device according to claim 2, wherein: the power supply is connected with the resistor firstly, and then the resistor is connected with the switch.
4. The open-short circuit test device according to claim 1, wherein: the number of the first pins is at least two groups, the number of the second pins is at least two groups, the number of the first indicator lamps corresponds to that of the first pins, and the number of the second indicator lamps corresponds to that of the second pins.
5. The open-short circuit test device according to claim 1, wherein: the test circuit further comprises a third test circuit, a third indicator light is arranged on the indicator, the third indicator light and one of the first pins or one of the second pins are connected in series on the third test circuit, and the third test circuit is connected in parallel with the first test circuit and the second test circuit.
6. The open-short circuit test device according to claim 5, wherein: the number of the third indicator lamps is one group.
7. The open-short circuit test device according to claim 6, wherein: the third test line is connected in series with the power supply and the resistor.
8. The open-short circuit test device according to claim 1, wherein: the test circuit assembly comprises a first circuit board and a second circuit board, wherein a mounting groove is formed in the test board, and the first circuit board and the second circuit board are arranged in the mounting groove.
9. The open-short circuit test device according to claim 8, wherein: the power supply and the resistor are arranged on the first circuit board, and the indicator is arranged on the second circuit board.
10. The open-short circuit test device according to claim 1, wherein: the first indicator light and the second indicator light are LED lights, and the colors of the first indicator light and the second indicator light are different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922488001.6U CN211528618U (en) | 2019-12-31 | 2019-12-31 | Open-short circuit testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922488001.6U CN211528618U (en) | 2019-12-31 | 2019-12-31 | Open-short circuit testing device |
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| Publication Number | Publication Date |
|---|---|
| CN211528618U true CN211528618U (en) | 2020-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922488001.6U Active CN211528618U (en) | 2019-12-31 | 2019-12-31 | Open-short circuit testing device |
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| CN (1) | CN211528618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114062840A (en) * | 2021-11-02 | 2022-02-18 | 上海御渡半导体科技有限公司 | Test device and test method for conduction of card connector of interface board of ATE (automatic test equipment) tester |
-
2019
- 2019-12-31 CN CN201922488001.6U patent/CN211528618U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114062840A (en) * | 2021-11-02 | 2022-02-18 | 上海御渡半导体科技有限公司 | Test device and test method for conduction of card connector of interface board of ATE (automatic test equipment) tester |
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