CN211786041U - Wire connection testing device - Google Patents
Wire connection testing device Download PDFInfo
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- CN211786041U CN211786041U CN202020086504.0U CN202020086504U CN211786041U CN 211786041 U CN211786041 U CN 211786041U CN 202020086504 U CN202020086504 U CN 202020086504U CN 211786041 U CN211786041 U CN 211786041U
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- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 abstract description 17
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Abstract
The utility model provides a wire rod connection testing arrangement, include: the signal generator comprises an output interface, and the output interface comprises a first sub-output interface and a second sub-output interface; the logic gate device comprises a first input interface, a second input interface and a logic circuit output interface; the first input interface is electrically connected with the first sub-output interface through a signal connecting wire, and the second input interface is electrically connected with the second sub-output interface through a detected wire; the signal indicating unit is electrically connected with the logic circuit output interface; and the signal indicating unit is driven by a signal output by the logic circuit output interface to indicate whether the detected wire is connected correctly. The utility model provides a testing arrangement is connected to wire rod can low-cost and the efficient detection achievement that the completion wire rod is connected.
Description
Technical Field
The utility model relates to a connecting wire detects technical field, especially relates to a wire rod connection testing arrangement.
Background
Electronic and electrical components are usually connected by cables and connectors to transmit signals and energy. Before the connection cable composed of these cables and connectors is used, a connection correctness test is usually performed to avoid the malfunction of the device due to the wrong connection. The current common methods include two methods of manual detection and software detection.
The method adopting the manual detection mainly comprises the following steps: using a resistance tester: such as multimeter resistance levels, a conduction test is performed for each pair of connections. This is a test mode that requires manual testing on a case-by-case basis, and is inefficient. And the error is easy to occur, and the short circuit fault between adjacent pins is not easy to detect.
The problems of complex equipment composition, high cost, large volume, unsuitability for mobile environment and the like exist when the signal generator and software sampling are adopted for detection. And the operation process is complicated, because the change of the connection relation needs to be adapted by software configuration, the requirement on the technical capability of operators is higher, and the labor cost is high.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model provides a testing arrangement is connected to wire rod, the detection achievement of completion interconnecting link that can convenient and fast.
The utility model provides a wire rod connection testing arrangement, include:
the signal generator comprises an output interface, and the output interface comprises a first sub-output interface and a second sub-output interface;
the logic gate device comprises a first input interface, a second input interface and a logic circuit output interface; the first input interface is electrically connected with the first sub-output interface through a signal connecting wire, and the second input interface is electrically connected with the second sub-output interface through a detected wire;
the signal indicating unit is electrically connected with the logic circuit output interface; and the signal indicating unit is driven by a signal output by the logic circuit output interface to indicate whether the detected wire is connected correctly.
Optionally, the logic gate device is an exclusive-or gate or an exclusive-or gate.
Optionally, the logic gate device is a programmable logic gate array device.
Optionally, the signal indicating unit is a sound indicating unit, a light emitting indicating unit or a vibration indicating unit.
Optionally, the light-emitting indication unit is a patch LED or an LCD nixie tube.
Optionally, the second input interface and the second sub-output interface are plugs, sockets or connection terminals;
and the two ends of the detected line are respectively matched with the plug, the socket or the connecting terminal.
Optionally, the number of output interfaces of the signal generator is multiple, the logic gate devices correspond to the output interfaces of the signal generator one to one, and the signal indication units correspond to the logic gate devices one to one.
Optionally, each detected line for connecting each second sub-output interface and the second input interface is included in the same wire harness.
Optionally, the signal generator is a single chip microcomputer.
Optionally, the apparatus further comprises a power supply coupled to the signal generator, the power supply being configured to provide power to the signal generator.
The utility model provides a detection device is connected to wire rod, to complete wire rod with detect the same signal of wire rod input, judge whether the output signal of two wire rods is the same through logic gate circuit to instruct according to judgement result drive signal indicating element, the circuit is simple, low cost. And the power consumption is small, the battery can be adopted for power supply, the size is small, and the mobile environment is suitable. Additionally, the utility model provides a detection device is connected to wire rod simple to use does not have the software operation, and is low to operating personnel's technological ability requirement.
Drawings
Fig. 1 is a circuit logic diagram of an embodiment of the wire connection detection device of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
The present embodiment provides a wire connection detecting device, as shown in fig. 1, including:
the signal generator comprises an output interface, and the output interface comprises a first sub-output interface and a second sub-output interface;
the logic gate device comprises a first input interface, a second input interface and a logic circuit output interface; the first input interface is electrically connected with the first sub-output interface through a signal connecting wire, and the second input interface is electrically connected with the second sub-output interface through a detected wire;
the signal indicating unit is electrically connected with the logic circuit output interface; and the signal indicating unit is driven by a signal output by the logic circuit output interface to indicate whether the detected wire is connected correctly.
As an optional implementation, the number of output interfaces of the signal generator is multiple, the logic gate devices correspond to the output interfaces of the signal generator one to one, and the signal indication units correspond to the logic gate devices one to one.
As an alternative embodiment, the detected lines for connecting the second sub-output interfaces and the second input interface are included in the same wire harness.
As an alternative embodiment, the logic gate circuit may adopt an exclusive or gate circuit, and when a wire harness with multiple wires is detected, the detection process by using the wire connection detection device is as follows: the signal generator generates a high-level pulse signal, and the high-level pulse signal is injected into the signal line 1-the signal line n in a time-sharing manner; the test circuit comprises an exclusive-OR gate, a test line, a voltage-measuring circuit and a voltage-measuring circuit, wherein the voltage-measuring circuit comprises a voltage-measuring circuit, a voltage-measuring circuit and a voltage-measuring circuit, and is characterized by comprising two paths of circuits, one path of circuit is directly injected into an input end A of the exclusive-; and finally, the exclusive-OR gate outputs a signal to drive the indicator lamp to emit visible light, and the detection result is indicated to a user. The detailed process is as follows:
the signal lines 1 to n are alternately applied with high-level pulses of low frequency by the signal generator. If the tested line is connected correctly, each exclusive-OR gate inputs the same logic signal at any time, outputs the same logic signal as the working logic (the input signals are the same, the output is low level, the input signals are different, the output is high level), outputs the same logic signal as the working logic signal, and the indicator light is turned off. If the tested line is broken, different logic signals are input into the corresponding exclusive-OR gate for a part of time in the pulse period, high level is output according to the working logic (the input signals are the same, the output is low level, the input signals are different, the output is high level), and the indicator light is on to indicate that the broken fault exists. If the connection is wrong (or the adjacent pins have short-circuit faults), as shown in the figure, the right end of the tested line 1' is connected to the nB of the XOR gate n in a wrong way (or the adjacent pins are short-circuited), when a high-level pulse is applied to the signal line 1, the logic signals of two input ends (nA and nB in the figure) of the XOR gate n are different, the output end (nC) is at a high level, and an indicator lamp is turned on, so that the short-circuit faults are shown.
The signal generator can be realized by a single chip microcomputer, the XOR gate can use 74HC86, the indicator light can use a patch LED, the power consumption is low, the circuit is simple, and the manufacture is easy. The indicator light may also use an LCD nixie tube, with lower power consumption than a patch LED.
Of course, as an alternative embodiment, the logic gate circuit may also use an exclusive or gate circuit, and the indication result of the signal indication unit is different from the above, because the working logic of the exclusive or gate: the input signals are the same, and the output is high level; the input signals are different, and the output is low level. Therefore, when the logical gate circuit uses the exclusive or gate, the indication result of the signal indicating unit is opposite to that described above, that is, when the indicator light of the above embodiment using the exclusive or gate is turned on, the indicator light of the present embodiment is turned off; when the indicator light of the above-described embodiment using an exclusive or gate is off, the indicator light of the present embodiment is on. In the above embodiment, the light emitting indication unit is used for indicating, and a sound indication unit or a vibration indication unit may also be used for indicating, and the indication logic is the same as that of the above embodiment, and is not described herein again.
As an alternative embodiment, the logic gate device may also be a programmable logic gate array device. The driving logic is the same as described above.
Optionally, the apparatus further comprises a power supply coupled to the signal generator, the power supply being configured to provide power to the signal generator.
In an alternative embodiment, the "connector X" (corresponding to the second sub-output interface) is connected to the test line plug 1, and the "connector Y" (corresponding to the second input interface) is connected to the test line plug, so that the test line is connected to the test circuit as a part of the signal line. In this embodiment, the second sub-output interface and the second input interface are set as the sockets, and the two ends of the detected line are connected in the form of plugs, and the sockets can be set at the two ends of the detected line, so that the second sub-output interface and the second input interface are connected in the form of plugs. Of course, the connection may also be made in the form of a connection terminal.
The above-described embodiments provide a scheme having a plurality of output interfaces, a plurality of logic gate circuits, and a plurality of signal indicating units, which is suitable for detection of a connection harness having a plurality of detected wires integrated as a harness. For the detection of a single connecting line, a wire connection detection device which is only provided with one output interface, one logic gate unit and one signal indication unit can be adopted for detection.
The wire connection detection device provided by the embodiment inputs the same signal to the complete wire and the detected wire, judges whether the output signals of the two wires are the same through the logic gate circuit, and drives the signal indicating unit to indicate according to the judgment result, and has the advantages of simple circuit and low cost. And the power consumption is small, the battery can be adopted for power supply, the size is small, and the mobile environment is suitable. In addition, the wire connection detection device provided by the embodiment is simple to use, does not have software operation, and has low requirements on the technical capability of operators.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a wire rod connection testing arrangement which characterized in that: the method comprises the following steps:
the signal generator comprises an output interface, and the output interface comprises a first sub-output interface and a second sub-output interface;
the logic gate device comprises a first input interface, a second input interface and a logic circuit output interface; the first input interface is electrically connected with the first sub-output interface through a signal connecting wire, and the second input interface is electrically connected with the second sub-output interface through a detected wire;
the signal indicating unit is electrically connected with the logic circuit output interface; and the signal indicating unit is driven by a signal output by the logic circuit output interface to indicate whether the detected wire is connected correctly.
2. The wire connection testing device according to claim 1, characterized in that: the logic gate device is an exclusive-OR gate circuit or an exclusive-OR gate circuit.
3. The wire connection testing device according to claim 1, characterized in that: the logic gate device is a programmable logic gate array device.
4. The wire connection testing device according to claim 1, characterized in that: the signal indicating unit is a sound indicating unit, a light emitting indicating unit or a vibration indicating unit.
5. The wire connection testing device according to claim 4, characterized in that: the light-emitting indication unit is a patch LED or an LCD nixie tube.
6. The wire connection testing device according to claim 1, characterized in that: the second input interface and the second sub-output interface are plugs, jacks or connecting terminals;
and the two ends of the detected line are respectively matched with the plug, the socket or the connecting terminal.
7. The wire connection testing device according to claim 1, characterized in that: the signal generator comprises a plurality of signal generators, logic gate devices and signal indication units, wherein the number of output interfaces of the signal generators is multiple, the logic gate devices correspond to the output interfaces of the signal generators one to one, and the signal indication units correspond to the logic gate devices one to one.
8. The wire connection testing device according to claim 7, characterized in that: each detected line for connecting each second sub-output interface and each second input interface is included in the same wire harness.
9. The wire connection testing device according to claim 1, characterized in that: the signal generator is a single chip microcomputer.
10. The wire connection testing device according to claim 1, characterized in that: also included is a power supply coupled to the signal generator, the power supply for providing electrical energy to the signal generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020086504.0U CN211786041U (en) | 2020-01-15 | 2020-01-15 | Wire connection testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020086504.0U CN211786041U (en) | 2020-01-15 | 2020-01-15 | Wire connection testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211786041U true CN211786041U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020086504.0U Active CN211786041U (en) | 2020-01-15 | 2020-01-15 | Wire connection testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211786041U (en) |
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2020
- 2020-01-15 CN CN202020086504.0U patent/CN211786041U/en active Active
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Effective date of registration: 20240620 Address after: 518057 B1, 20/F, Yanxiang Science and Technology Building, No. 31, High-tech Fourth Road, Maling Community, Yuehai Street, Nanshan District, Shenzhen, Guangdong Province Patentee after: EVOC hi-tech Holdings Group Ltd. Country or region after: China Address before: 530033 No. 7, Nahong Avenue, Nanning, Guangxi Zhuang Autonomous Region Patentee before: Nanning Yanxiang Equipment Technology Co.,Ltd. Country or region before: China |