CN216052133U - Device for checking connection of signal wire of case - Google Patents
Device for checking connection of signal wire of case Download PDFInfo
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- CN216052133U CN216052133U CN202122525255.8U CN202122525255U CN216052133U CN 216052133 U CN216052133 U CN 216052133U CN 202122525255 U CN202122525255 U CN 202122525255U CN 216052133 U CN216052133 U CN 216052133U
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Abstract
The utility model discloses a device for checking connection of a signal wire of a case, which comprises a detection board and a circuit assembly arranged on the detection board, wherein the detection board is provided with a plurality of detection holes; the circuit component comprises a power supply circuit, hard disk lamp circuits connected in series with two groups of hard disk lamp pins arranged on the detection board, power supply lamp circuits connected in series with two groups of power supply lamp pins arranged on the detection board, a restart key circuit connected in series with two groups of restart key pins arranged on the detection board, and a power supply key circuit connected in series with two groups of power supply key pins arranged on the detection board; the hard disk lamp circuit and the power lamp circuit are connected to the power circuit in parallel, and the internal resistance of the hard disk lamp circuit is larger than that of the power lamp circuit. Through the mode, the detection board with the plurality of groups of pins can be connected into different wires in the case to detect the connection state of each group of wires, and the resistance of the hard disk lamp circuit is set to be larger than the internal resistance of the power supply lamp circuit, so that whether the wires are reversely connected or not is directly distinguished according to the brightness of the power supply lamp and the signal lamp.
Description
Technical Field
The utility model relates to the technical field of chassis wiring test, in particular to a device for testing connection of chassis signal wires.
Background
The power key, the restart key, the power lamp, the hard disk lamp and the like of the computer case are used as important hardware for using and judging the running state of a computer product, and the situation of wrong connection or reverse connection is easy to occur in a wiring link during the production of the case, so that the power key or the restart key of the product is disordered in function, and the running state of the case is marked disorderly and cannot be normally used. Before, in order to guarantee that the connection of the internal wiring of the case is normal, various identifications can be arranged at the interface of the wiring, and the wiring is guaranteed to be normal by artificially distinguishing the material and the identification of the wiring. However, this approach is error prone and inefficient.
The prior art provides a test fixture, and operating personnel is connected to the tool with the signal line according to corresponding operation to whether light, colour and luminance come to judge fast whether the signal line is connected correctly through the pilot lamp. However, the resistances of the resistors connected in series in the power lamp string circuit and the hard disk lamp string circuit of the current detection jig are the same, which results in the same brightness of the power lamp string and the hard disk lamp string. After the positive pole of power lamp and the positive pole of hard disk lamp connect the reversal, power lamp and hard disk lamp all can shine, lead to the tester can't judge whether connect the reversal with the hard disk lamp at present power lamp for unqualified product flows into in the customer hand, brings the loss for company and customer.
Therefore, it is necessary to design a device for checking the connection of the signal line of the chassis, which has a simple structure, is convenient to use, has good test accuracy, and can directly and quickly judge whether the connection is abnormal.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems, the utility model provides a device for checking the connection of a case signal wire, which can access different wires in a case by arranging a detection board with a plurality of groups of pins so as to detect the connection state of each group of wires, and set the resistance of a hard disk lamp circuit to be larger than the internal resistance of a power supply lamp circuit, thereby directly distinguishing whether the wires are reversely connected according to the brightness of the power supply lamp and a signal lamp.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a device for checking the connection of signal lines of a chassis comprises a detection board and a circuit component arranged on the detection board; the circuit assembly comprises a power supply circuit, hard disk lamp circuits connected in series with two groups of hard disk lamp pins arranged on the detection plate, power supply lamp circuits connected in series with two groups of power supply lamp pins arranged on the detection plate, restart key circuits connected in series with two groups of restart key pins arranged on the detection plate, and power supply key circuits connected in series with two groups of power supply key pins arranged on the detection plate;
the hard disk lamp circuit and the power lamp circuit are connected to the power circuit in parallel, and the internal resistance of the hard disk lamp circuit is larger than that of the power lamp circuit.
Further, the hard disk lamp circuit is provided with a first resistor and a second resistor which are connected in series, and the second resistor is connected to the power lamp circuit in series.
Furthermore, the restart key circuit is connected in series to the power supply circuit and is provided with a restart key indicator light diode connected in series with the restart key circuit, and the positive terminal of the restart key indicator light diode is connected with the high-level terminal of the power supply circuit.
Further, the power key circuit is connected in series to the power circuit and is provided with a power key indicator light diode connected in series with the power key circuit, and the positive end of the power key indicator light diode is connected with the high-level end of the power circuit.
Further, the light emitting color of the hard disk lamp is different from the light emitting color of the power lamp.
Further, the hard disk lamp circuit, the power lamp circuit, the restart key circuit, and the power key circuit are connected in parallel to the power circuit.
Furthermore, the power supply circuit is connected in series with the power supply indicating circuit, the power supply indicating circuit is provided with a power supply indicating lamp diode connected in series with the power supply indicating circuit, and the positive terminal of the power supply indicating lamp diode is connected with the high-level terminal of the power supply circuit.
Furthermore, the high-level end of the power supply circuit is provided with a third resistance element connected in series with the high-level end of the power supply circuit, and the third resistance element is respectively connected in series with the hard disk lamp circuit, the power supply lamp circuit, the restart key circuit, the power supply key circuit and the power supply indicating circuit.
Furthermore, the two groups of hard disk lamp pins comprise an anode hard disk lamp pin connected with the high level end of the power circuit and a cathode hard disk lamp pin connected with the low level end of the power circuit.
Furthermore, the two groups of power lamp pins comprise a positive power lamp pin connected with the high level end of the power circuit and a negative power lamp pin connected with the low level end of the power circuit.
Compared with the prior art, the utility model has the beneficial effects that:
1. the device for checking connection of the signal wire of the case can access different wires in the case by arranging the detection board with a plurality of groups of pins, so that an operator can quickly judge whether the wires are connected correctly by judging whether the indicator lamps are lighted or not and the color and the brightness of the indicator lamps, the detection efficiency is high, and errors are not easy to occur.
2. According to the device for checking connection of the signal wire of the case, the resistance of the hard disk lamp circuit is set to be larger than the internal resistance of the power supply lamp circuit, and the hard disk lamp circuit and the power supply lamp circuit are connected to the same power supply circuit in parallel, so that currents flowing through the hard disk lamp circuit and the power supply lamp circuit are different, and a tester can conveniently distinguish whether the connection is reversed or not according to the brightness of the power supply lamp and the brightness of the hard disk lamp.
Drawings
FIG. 1 is a schematic diagram of the configuration of the apparatus for checking the connection of signal lines of a cabinet according to the present invention;
FIG. 2 is a schematic circuit connection diagram of the apparatus for verifying connection of signal lines of a chassis of the present invention;
FIG. 3 is a schematic diagram of the configuration of the test board of the apparatus for testing the connection of signal lines of a cabinet of the present invention;
the parts in the drawings are numbered as follows: 10. detecting a plate; 11. a positive hard disk lamp pin; 12. a negative hard disk lamp pin; 13. a pin of the anode power lamp; 14. a negative power lamp pin; 15. a restart key pin; 16. a power key pin; 20. a circuit component; 21. a first resistive member; 22. a second resistive member; 23. a third resistive member; 24. a power supply indicator diode; 25. a restart key indicator diode; 26. power key indicator diode.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not closely related to the present invention are omitted.
In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
As shown in fig. 1 to 3, an apparatus 100 for checking a signal line connection of a cabinet includes a test board 10 and a circuit assembly 20 disposed on the test board 10. The detection board 10 is a jig board having a plurality of sets of wiring pins and empty pins. The circuit components 20 are routed over the test board 10. The circuit assembly 20 includes a power supply circuit, a hard disk lamp circuit connected in series with two sets of hard disk lamp pins provided on the detection board 10, a power supply lamp circuit connected in series with two sets of power supply lamp pins provided on the detection board 10, a restart key circuit connected in series with two sets of restart key pins 15 provided on the detection board 10, and a power supply key circuit connected in series with two sets of power supply key pins 16 provided on the detection board 10. In particular, the hard disk lamp circuit, the power lamp circuit, the reset key circuit and the power key circuit are connected in parallel to the power circuit, so as to ensure that each detection circuit exists independently and does not interfere with each other, and avoid short circuit or open circuit of the whole circuit assembly 20 caused by reverse connection or wrong connection of any one circuit.
Specifically, the two groups of hard disk lamp pins include a positive hard disk lamp pin 11 connected to the high level end of the power circuit and a negative hard disk lamp pin 12 connected to the low level end of the power circuit. The two sets of power lamp pins include a positive power lamp pin 13 connected to the high level end of the power circuit and a negative power lamp pin 14 connected to the low level end of the power circuit. When the hard disk lamp and the power lamp are subjected to wiring test, the positive electrode and the negative electrode at the wiring positions of the hard disk lamp and the power lamp need to be distinguished.
So set up, have the pick-up plate 10 of multiunit pin through the setting, can insert the wiring of quick-witted incasement difference, for example power key wiring, restart key wiring, hard disk lamp wiring and power lamp wiring for operating personnel can light through the pilot lamp, whether the colour and the luminance of pilot lamp come the quick judgement wiring to connect correctly, and its detection efficiency is high and be difficult for makeing mistakes.
It is worth noting that the hard disk lamp circuit and the power lamp circuit are connected in parallel to the power circuit, and the internal resistance of the hard disk lamp circuit is larger than that of the power lamp circuit, so as to ensure that the currents flowing through the hard disk lamp circuit and the power lamp circuit are different, and a tester can conveniently distinguish whether the connection is reverse according to the brightness of the power lamp and the brightness of the hard disk lamp.
As shown in fig. 2, in some embodiments, the power circuit is connected in series with the power indication circuit, and the power supply voltage of the power circuit is 5V. The power supply indicating circuit is provided with a power supply indicating lamp diode 24 connected in series, the positive end of the power supply indicating lamp diode 24 is connected with the high level end of the power supply circuit, and the negative end of the power supply indicating lamp diode 24 is connected with the low level end of the power supply circuit. So set up, power supply pilot lamp diode 24 is established ties to power supply circuit, can detect power supply condition of power supply circuit. When the power circuit supplies power normally, if the power supply indicator light diode 24 is in a normally-on state, the power supply and the detection board 10 work normally; if the power supply indicator diode 24 is in the off state, an abnormality occurs in the power supply or the detection board 10. Thereby avoiding the abnormal condition of the power supply and the detection board 10 from influencing the result of the wiring test.
As shown in fig. 2 to 3, in some embodiments, the hard disk lamp circuit has a first resistive member 21 and a second resistive member 22 connected in series, the second resistive member 22 being connected in series to the power lamp circuit. One end of the power lamp circuit is connected to the low-level end of the power circuit, and the other end of the power lamp circuit is connected between the first resistor 21 and the second resistor 22, so that the internal resistance of the hard disk lamp circuit is greater than the internal resistance of the power lamp circuit, the current flowing through the pin of the hard disk lamp is smaller than the current flowing through the pin of the power lamp, and the brightness of the hard disk lamp is obviously lower than that of the power lamp.
Specifically, the hard disk lamp has a different light emission color from the power lamp. Specifically, the hard disk lamp emits red light, and the power lamp emits blue light. When the current flowing through the hard disk lamp is the same as that flowing through the power supply lamp, the blue light of the power supply lamp is dazzling compared with the red light of the hard disk lamp, but the difference degree is not large. When the current flowing through the hard disk lamp is adjusted to be small and the current flowing through the power lamp is adjusted to be large, the blue light of the power lamp is more dazzling than the red light of the hard disk lamp, and a tester can quickly and directly judge whether the wiring of the hard disk lamp and the power lamp is normal or not.
As shown in fig. 2-3, in some embodiments, the restart key circuit is connected in series to the power circuit and has a restart key indicator diode 25 connected in series therewith, with the positive terminal of the restart key indicator diode 25 being connected to the high side of the power circuit. So set up, will restart the key and restart key pilot lamp diode 25 and insert power supply circuit, whether light through restart key pilot lamp diode 25, judge whether the wiring of restart key is normal.
As shown in fig. 2 to 3, in some embodiments, the power key circuit is connected in series to the power circuit and has a power key indicator diode 26 connected in series therewith, the positive terminal of the power key indicator diode 26 being connected to the high-level terminal of the power circuit. So set up, with power key and power key pilot lamp diode 26 access power supply circuit, whether through power key pilot lamp diode 26 light, judge whether the power key wiring is normal.
As shown in fig. 2 to 3, in some embodiments, the high-level end of the power circuit has a third resistor 23 connected in series with it, and the third resistor 23 is connected in series with the hard disk lamp circuit, the power lamp circuit, the restart key circuit, the power key circuit, and the power supply indication circuit, respectively, so as to ensure that the circuits will not be short-circuited to burn out the devices when the circuits are in a wiring error or the like.
The following describes a specific operation of the present invention:
after the power supply circuit is powered on, a tester respectively connects the power supply key, the restart key, the hard disk lamp and the power supply lamp connecting line to the corresponding pins on the detection board 10 according to circuit diagram marks. First, whether the power supply indicator light diode 24 is lighted or not is observed, if so, the subsequent test is carried out, and if not, the power supply and the detection board 10 are checked. And then observing the power lamp and the hard disk lamp, and if the power lamp and the hard disk lamp are both lightened and the power lamp is brighter than the hard disk lamp, the test is qualified. If the hard disk lamp is brighter than the power lamp, the connecting wire of the hard disk lamp and the power lamp is reversely connected. If the power lamp (hard disk lamp) is not on, the power lamp (hard disk lamp) of the case is damaged, or the positive electrode and the negative electrode of the wiring of the power lamp (hard disk lamp) are connected reversely. And finally, testing the power key (restart key), pressing the power key (restart key), and if the power key indicator light diode 26 (restart key indicator light diode 25) is lightened, the test is qualified. If the power key indicator diode 26 (restart key indicator diode 25) is not lit, the test is failed.
The above description is only for the purpose of illustrating the technical solutions of the present invention and is not intended to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; all the equivalent structures or equivalent processes performed by using the contents of the specification and the drawings of the utility model, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An apparatus for verifying a signal line connection of a cabinet includes a test board (10) and a circuit assembly (20) disposed on the test board (10); the circuit assembly (20) is characterized by comprising a power supply circuit, hard disk lamp circuits connected in series with two groups of hard disk lamp pins arranged on the detection plate (10), power supply lamp circuits connected in series with two groups of power supply lamp pins arranged on the detection plate (10), restart key circuits connected in series with two groups of restart key pins (15) arranged on the detection plate (10), and power supply key circuits connected in series with two groups of power supply key pins (16) arranged on the detection plate (10);
the hard disk lamp circuit and the power lamp circuit are connected to the power circuit in parallel, and the internal resistance of the hard disk lamp circuit is larger than that of the power lamp circuit.
2. The apparatus for verifying a chassis signal line connection as recited in claim 1, wherein the hard disk lamp circuit has a first resistive member (21) and a second resistive member (22) connected in series, the second resistive member (22) being connected in series to the power lamp circuit.
3. The apparatus for inspecting chassis signal line connections of claim 1, wherein the reset key circuit is connected in series to the power circuit and has a reset key indicator diode (25) connected in series therewith, the positive terminal of the reset key indicator diode (25) being connected to the high side of the power circuit.
4. The apparatus for inspecting chassis signal line connections according to claim 3, wherein said power key circuit is connected in series to said power circuit and has a power key indicator diode (26) connected in series therewith, the positive terminal of said power key indicator diode (26) being connected to the high side of said power circuit.
5. The apparatus of claim 4, wherein the hard disk lamp emits light of a color different from that of the power lamp.
6. The apparatus for verifying a chassis signal line connection of claim 1, wherein the hard disk lamp circuit, the power lamp circuit, the reset key circuit, and the power key circuit are connected in parallel with each other to the power circuit.
7. The apparatus for inspecting chassis signal line connections of claim 6, wherein the power circuit is connected in series with a power indicator circuit having a power indicator diode (24) connected in series therewith, the positive terminal of the power indicator diode (24) being connected to the high side of the power circuit.
8. The apparatus for verifying a chassis signal line connection as recited in claim 7, wherein the high side of the power circuit has a third resistive member (23) connected in series therewith, the third resistive member (23) being connected in series to the hard disk lamp circuit, the power lamp circuit, the restart key circuit, the power key circuit, and the power indication circuit, respectively.
9. The apparatus of claim 1, wherein the two sets of hard disk light pins comprise a positive hard disk light pin (11) connected to a high side of the power circuit and a negative hard disk light pin (12) connected to a low side of the power circuit.
10. The apparatus of claim 1, wherein the two sets of power lamp pins include a positive power lamp pin (13) connected to a high side of the power circuit and a negative power lamp pin (14) connected to a low side of the power circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122525255.8U CN216052133U (en) | 2021-10-20 | 2021-10-20 | Device for checking connection of signal wire of case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122525255.8U CN216052133U (en) | 2021-10-20 | 2021-10-20 | Device for checking connection of signal wire of case |
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| Publication Number | Publication Date |
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| CN216052133U true CN216052133U (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122525255.8U Active CN216052133U (en) | 2021-10-20 | 2021-10-20 | Device for checking connection of signal wire of case |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116299071A (en) * | 2023-05-18 | 2023-06-23 | 天津博益气动股份有限公司 | Pressure sensor prevents wrong line detection circuitry that connects |
-
2021
- 2021-10-20 CN CN202122525255.8U patent/CN216052133U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116299071A (en) * | 2023-05-18 | 2023-06-23 | 天津博益气动股份有限公司 | Pressure sensor prevents wrong line detection circuitry that connects |
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Denomination of utility model: Device used to check the connection of chassis signal line Effective date of registration: 20221213 Granted publication date: 20220315 Pledgee: Wuhan area branch of Hubei pilot free trade zone of Bank of China Ltd. Pledgor: WUHAN PANSHENG DINGCHENG TECHNOLOGY Co.,Ltd. Registration number: Y2022420000388 |