CN106124918A - Direct current Three-hole socket detection device and detection method - Google Patents

Abstract

The application discloses a detection device and a detection method for a DC three-hole socket. Wherein, the DC three-hole socket includes a positive pole, a negative pole and a ground wire. The first circuit, the first circuit includes a first terminal, a second terminal and a first light-emitting diode, wherein the first light-emitting diode is a two-color diode, and the first pole of the first light-emitting diode passes through the first terminal is electrically connected to the positive pole, and the second pole of the first light-emitting diode is electrically connected to the negative pole through the second terminal, so that the first circuit is connected in the forward direction or reversed. The first light emitting diode emits the first color light or the second color light. The DC three-hole socket detection device provided in this embodiment can be used to detect the wiring status of the DC three-hole socket, thereby ensuring the safety of equipment connected to the DC three-hole socket.

Description

DC three-hole socket detection device and detection method

technical field

The application relates to the field of electrical testing, in particular to a DC three-hole socket detection device and a DC three-hole socket detection method.

Background technique

Due to the better stability of the DC power supply, more and more devices such as servers and switches use DC power supply at present. Therefore, the sockets used to connect the above-mentioned devices also need to be changed to the DC power supply method accordingly. Generally, in order to protect the safety of the equipment, it is necessary to detect the DC socket before supplying power to the equipment, but the jack detectors of the existing sockets on the market are usually AC detectors, which are mainly used to detect the correspondence between the three jacks of the AC socket. Whether the connection mode of phase wire, neutral wire and ground wire is correct. The DC three-hole socket is different from the AC three-hole socket. The three jacks of the DC three-hole socket are positive, negative, and ground. The traditional AC detector cannot detect the connection mode of each jack of the three-hole socket under the DC power supply mode. Whether it is correct, therefore, there is a need for a DC three-hole socket detection device that can detect whether there is a problem with the three-hole socket in the DC power supply mode.

Contents of the invention

The purpose of this application is to propose an improved DC three-hole socket detection device and a DC three-hole socket detection method to solve the technical problems mentioned in the background technology section above.

In the first aspect, the present application provides a DC three-hole socket detection device, the DC three-hole socket includes a positive pole, a negative pole and a ground wire, and the DC three-hole socket detection device includes: a first circuit, the first circuit It includes a first end, a second end and a first light-emitting diode, wherein the first light-emitting diode is a two-color diode, and the first pole of the first light-emitting diode is electrically connected to the positive pole through the first end, so The second pole of the first light-emitting diode is electrically connected to the negative pole through the second end, so that the first light-emitting diode emits a first color when the first circuit is connected forwardly or reversely. Light or Secondary Color Light.

In some embodiments, the DC three-hole socket detection device further includes: a second circuit, the second circuit includes a third terminal, a fourth terminal and a second light-emitting diode, wherein the first light-emitting diode of the second light-emitting diode The three poles are electrically connected to the ground wire through the fourth end, and the fourth pole of the second light-emitting diode is electrically connected to the negative electrode through the third end; a third circuit, the third circuit includes a first Five terminals, a sixth terminal, and a third light emitting diode, wherein, the fifth pole of the third light emitting diode is electrically connected to the anode through the sixth terminal, and the sixth pole of the third light emitting diode is electrically connected through the The fifth end is electrically connected to the ground wire.

In some embodiments, the DC three-hole socket detection device further includes a first switch; the first switch is set in the second circuit, and the first switch is connected in series with the second light emitting diode; or the The first switch is arranged in the third circuit, and the first switch is connected in series with the third light emitting diode.

In some embodiments, the DC three-hole socket detection device further includes: a first current-limiting resistor, set in the first circuit, the first current-limiting resistor is connected in series with the first light-emitting diode the second current limiting resistor is set in the second circuit, and the second current limiting resistor is connected in series with the second light-emitting diode; the third current limiting resistor is set in the third circuit, The third current limiting resistor is connected in series with the third light emitting diode.

In a second aspect, the present application provides a method for detecting a DC three-hole socket. The DC three-hole socket detection device for detecting the DC three-hole socket includes a first circuit, a second circuit, and a third circuit; the first The circuit includes a first end, a second end and a first light-emitting diode, wherein the first end and the second end are electrically connected to the anode and the cathode respectively, wherein the first light-emitting diode is a two-color diode, The first pole of the first light-emitting diode is electrically connected to the positive pole through the first terminal, and the second pole of the first light-emitting diode is electrically connected to the negative pole through the second terminal, so that the When the first circuit is forward connected or reverse connected, the first light emitting diode emits the first color light or the second color light; the second circuit includes a third terminal, a fourth terminal and a second light emitting diode, wherein , the third pole of the second light emitting diode is electrically connected to the ground wire through the fourth terminal, and the fourth pole of the second light emitting diode is electrically connected to the negative pole through the third terminal; The third circuit includes a fifth terminal, a sixth terminal and a third light-emitting diode, wherein the fifth pole of the third light-emitting diode is electrically connected to the anode through the sixth terminal, and the first pole of the third light-emitting diode The six poles are electrically connected to the ground wire through the fifth end; the method includes: electrically connecting the first end and the second end of the first circuit to the positive pole and the negative pole of the DC three-hole socket respectively; Connect the third terminal and the fourth terminal of the second circuit to the negative pole and the ground wire of the DC three-hole socket respectively; connect the fifth terminal and the sixth terminal of the third circuit to the DC three-hole socket respectively; The ground wire of the hole socket is electrically connected to the anode; according to the lighting conditions of the first light-emitting diode, the second light-emitting diode and the third light-emitting diode, the detection result of the DC three-hole socket is determined.

In some embodiments, the determining the detection result of the DC three-hole socket according to the light-emitting conditions of the first light-emitting diode, the second light-emitting diode and the third light-emitting diode includes: judging the first light-emitting diode, Whether the second light-emitting diode and the third light-emitting diode do not emit light; if yes, determine that the DC three-hole socket is powered off; if not, determine the power-on status of the DC three-hole socket.

In some embodiments, the determining the energization status of the DC three-hole socket includes: if the first light-emitting diode emits light of the second color, the second light-emitting diode does not emit light, and the third light-emitting diode does not emit light, then determining the The positive pole and the negative pole of the DC three-hole socket are connected reversely; if the first light-emitting diode emits the first color light, the second light-emitting diode emits light, and the third light-emitting diode does not emit light, then determine the positive pole and ground of the DC three-hole socket The wiring is reversed; if the first light-emitting diode emits the first color light, the second light-emitting diode does not emit light, and the third light-emitting diode emits light, it is determined that the negative pole and the ground wire of the DC three-hole socket are connected reversely; if the first light-emitting diode If one LED does not emit light, the second LED emits light, and the third LED does not emit light, it is determined that the DC three-hole socket lacks a positive pole; if the first LED does not emit light, the second LED does not emit light, and the third LED does not emit light If the diode lights up, it is determined that the DC three-hole socket lacks a negative pole; if the first LED emits the first color light, the second LED emits light, and the third LED emits light, it determines that the DC three-hole socket lacks a ground wire Or the DC three-hole socket is normal.

In some embodiments, the DC three-hole socket detection device further includes a first switch arranged in the second circuit, the first switch is connected in series with the second light-emitting diode; if the If the first light-emitting diode emits the first color light, the second light-emitting diode emits light, and the third light-emitting diode emits light, it is determined that the DC three-hole socket lacks a ground wire or that the DC three-hole socket is normal, including: disconnecting the first A switch, if the first light-emitting diode emits light of the first color, the second light-emitting diode does not emit light, and the third light-emitting diode emits light, the DC three-hole socket is normal; if the first switch is turned off, if the second light-emitting diode If one light emitting diode emits light of the first color, the second light emitting diode does not emit light, and the third light emitting diode does not emit light, then the DC three-hole socket lacks a ground wire.

In some embodiments, the DC three-hole socket detection device further includes a first switch arranged in the third circuit, the first switch is connected in series with the third light-emitting diode; if the If the first light-emitting diode emits the first color light, the second light-emitting diode emits light, and the third light-emitting diode emits light, it is determined that the DC three-hole socket lacks a ground wire or that the DC three-hole socket is normal, including: disconnecting the first A switch, if the first light-emitting diode emits light of the first color, the second light-emitting diode emits light, and the third light-emitting diode does not emit light, then the DC three-hole socket is normal; if the first switch is turned off, if the second light-emitting diode If one light emitting diode emits light of the first color, the second light emitting diode does not emit light, and the third light emitting diode does not emit light, then the DC three-hole socket lacks a ground wire.

In some embodiments, the DC three-hole socket detection device further includes: a first current-limiting resistor, set in the first circuit, the first current-limiting resistor is connected in series with the first light-emitting diode the second current limiting resistor is set in the second circuit, and the second current limiting resistor is connected in series with the second light-emitting diode; the third current limiting resistor is set in the third circuit, The third current limiting resistor is connected in series with the third light emitting diode.

The DC three-hole socket detection device provided by this application is used to detect a DC three-hole socket including positive poles, negative poles and ground wires. The first pole of the first light-emitting diode in the first circuit of the detection device is connected to the positive pole Electrically connected, the second pole of the first light-emitting diode is electrically connected to the negative pole through the second end, so that the first light-emitting diode can emit the first color light or the second color light when the first circuit is connected in the forward direction or in the reverse direction. Color light, the above detection device realizes judging the wiring status of the DC three-hole socket according to the light-emitting situation of the first light-emitting diode, and ensures the safety of the equipment connected to the DC three-hole socket.

Description of drawings

Other characteristics, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

Figure 1 shows a schematic structural view of an embodiment of a DC three-hole socket detection device according to the present application;

Fig. 2 shows a schematic structural diagram of another embodiment of a DC three-hole socket detection device according to the present application;

FIG. 3 shows a flow 300 of an embodiment of a method for detecting a DC three-hole socket according to the present application;

FIG. 4 shows a flow chart 400 of another embodiment of a method for detecting a DC three-hole socket according to the present application;

5A-5I show the light-emitting states of the light-emitting diodes in the DC three-hole socket detection device under different connection conditions of the DC three-hole socket.

detailed description

The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

Fig. 1 shows a schematic structural view of an embodiment of a detection device for a DC three-hole socket according to the present application. As shown in the figure, the DC three-hole socket includes a positive pole P, a negative pole N, and a ground wire G. The DC three-hole socket detection device of the present application includes a first circuit, and the first circuit includes a first terminal S11, a second terminal S12 and a first terminal S11. A light emitting diode L11.

In this embodiment, the first pole 1 of the first light-emitting diode L11 in the first circuit is electrically connected to the positive pole P through the first terminal S11, and the second pole 2 of the first light-emitting diode L11 is electrically connected to the positive pole P through the first terminal S11. The two terminals S12 are electrically connected to the negative electrode N. It should be noted that the above-mentioned first light emitting diode L11 may be a two-color diode, including a first sub light emitting diode L111 and a second sub light emitting diode L112, as shown in FIG. 1 . When the voltage value of the first terminal S11 of the first circuit is higher than the voltage value of the second terminal S12 so that the first circuit is turned on in the forward direction, the first sub-LED in the first light-emitting diode L11 The diode L111 is turned on, so that the first sub LED L111 emits light of the first color. When the voltage value of the first terminal S11 of the above-mentioned first circuit is lower than the voltage value of the above-mentioned second terminal S12, so that the above-mentioned first circuit is turned on in reverse, the second sub-light-emitting diode in the above-mentioned first light-emitting diode L11 The diode L112 is turned on, so that the second sub LED L112 emits a second color light, and the second color light is different from the first color light.

In some optional implementation manners of this embodiment, the above-mentioned DC three-hole socket detection device may further include a second circuit and a third circuit. The second circuit may include a third terminal S13, a fourth terminal S14, and a second light emitting diode L12, the third pole 3 of the second light emitting diode L12 is electrically connected to the above ground G through the above fourth terminal S14, and the above second The fourth pole 4 of the light emitting diode L12 is electrically connected to the negative pole N through the third terminal S13. The third circuit may include a fifth terminal S15, a sixth terminal S16 and a third light emitting diode L13, the fifth pole 5 of the third light emitting diode L13 is electrically connected to the positive pole P through the sixth terminal S16, and the third light emitting diode L13 is electrically connected to the positive pole P through the sixth terminal S16. The sixth pole 6 of the diode L13 is electrically connected to the ground G through the fifth terminal S15.

In some optional implementation manners of this embodiment, the above-mentioned DC three-hole socket detection device may further include a first current limiting resistor R11, a second current limiting resistor R12, and a third current limiting resistor R13. The above-mentioned first current-limiting resistor R11 can be set in the above-mentioned first circuit, and the first current-limiting resistor R11 is connected in series with the above-mentioned first light-emitting diode L11; the above-mentioned second current-limiting resistor R12 can be set in the above-mentioned second circuit, And the second current-limiting resistor R12 is connected in series with the above-mentioned second light-emitting diode L12; the above-mentioned third current-limiting resistor R13 can be set in the above-mentioned third circuit, and the third current-limiting resistor R13 is connected in series with the above-mentioned third light-emitting diode L13 connection, as shown in Figure 1. Here, the first current-limiting resistor R11, the second current-limiting resistor R12 and the third current-limiting resistor R13 are respectively used to limit the current of the above-mentioned first circuit, the second circuit and the third circuit, so as to prevent the above-mentioned first light emitting diode from being damaged by excessive current. Diode L11, second light emitting diode L12 and third light emitting diode L13.

Usually, the current limiting resistor R can be determined according to the conduction voltage UF and the working current IF of the LED, Among them, U is the voltage value between the two jacks of the DC socket. For example, the working current IF of the light-emitting diode needs to meet 5mA≤IF≤20mA, the conduction voltage UF needs to meet UF=2V, and the current limiting resistor needs to meet Therefore, the operating current and conduction voltage of the first light emitting diode L11, the second light emitting diode L12 and the third light emitting diode L13 are known, as well as the voltages of the first light emitting diode L11, the second light emitting diode L12 and the third light emitting diode L13 are known. The voltage values at both ends can be determined according to the above formula to determine the resistance values of the first current limiting resistor R11 , the second current limiting resistor R12 and the third current limiting resistor R13 .

The DC three-hole socket detection device provided by the above-mentioned embodiments of the present application can judge the wiring situation of the above-mentioned DC three-hole socket according to the lighting conditions of the first light-emitting diode L11, the second light-emitting diode L12, and the third light-emitting diode L13, so as to ensure The equipment connected to the DC three-hole socket is safe.

Please continue to refer to FIG. 2 , which shows a schematic structural diagram of another embodiment of a detection device for a DC three-hole socket according to the present application. As shown in the figure, the DC three-hole socket detection device of this embodiment may include a first light emitting diode L21, a second light emitting diode L22, a third light emitting diode L23, a first current limiting resistor R21, a second current limiting resistor R22, a second Three current limiting resistors R23, and a first switch K1.

In this embodiment, the above-mentioned first switch K1 may be set in the third circuit of the above-mentioned DC three-hole socket detecting device, as shown in FIG. 2 . Opening or closing the above-mentioned first switch K1 can more accurately determine the connection status of the above-mentioned DC three-hole socket. For example, when the above-mentioned first switch K1 is closed, if the above-mentioned first light-emitting diode L21 emits light of the first color, and both the second light-emitting diode L22 and the third light-emitting diode L23 emit light, it can be judged that the above-mentioned DC three-hole socket If the power is on and the polarity is normal or the ground wire is missing, it is necessary to turn off the first switch K1 to further judge the connection of the above-mentioned DC three-hole socket. If the first switch K1 is turned off, the first light-emitting two The stage tube L21 emits the first color light, the second light-emitting diode L22 emits light and the third light-emitting diode L23 does not emit light, it can be confirmed that the above-mentioned DC three-hole socket is powered on and the polarity is normal. If the above-mentioned first switch K1 is turned off, the above-mentioned first The light-emitting diode L21 emits light of the first color, and neither the second light-emitting diode L22 nor the third light-emitting diode L23 emits light, so it can be determined that the above-mentioned DC three-hole socket is powered on and lacks a ground wire.

In some optional implementation manners of this embodiment, the above-mentioned first switch K1 may also be arranged in the above-mentioned second circuit, and the above-mentioned first switch K1 is connected in series with the above-mentioned second light emitting diode L22.

The DC three-hole socket detection device provided by the above-mentioned embodiments of the present application can emit light of the first color according to opening and closing the first switch K1 and the first light-emitting diode L21, and the second light-emitting diode L22 and the third light-emitting diode The luminescence of L23 can more accurately judge the connection status of the DC three-hole socket.

Next, please refer to FIG. 3 , which shows a flow 300 of an embodiment of a method for detecting a DC three-hole socket according to the present application. In the detection method of the DC three-hole socket in this embodiment, the detection device for the DC three-hole socket includes, for example, a first circuit, a second circuit and a third circuit as shown in FIG. 1 .

In this embodiment, the above-mentioned first circuit includes a first terminal S11, a second terminal S12 and a first light-emitting diode L11, where the first light-emitting diode L11 is a two-color diode, and the first pole 1 of the first light-emitting diode L11 passes through The first terminal S11 is electrically connected to the positive pole P, and the second pole 2 of the first light-emitting diode L11 is electrically connected to the negative pole N through the second terminal S12, so that the first circuit is connected in the forward direction or in the reverse direction. When turned on, the above-mentioned first light emitting diode L11 emits the first color light or the second color light. The second circuit includes a third terminal S13, a fourth terminal S14 and a second light emitting diode L12, the third pole 3 of the second light emitting diode L12 is electrically connected to the ground line G through the fourth terminal S14, and the second light emitting diode L12 is electrically connected to the ground line G through the fourth terminal S14. The fourth pole 4 of the diode L12 is electrically connected to the above-mentioned negative pole N through the above-mentioned third terminal S13. The third circuit includes a fifth terminal S15, a sixth terminal S16 and a third light emitting diode L13, the fifth pole 5 of the third light emitting diode L13 is electrically connected to the positive pole P through the sixth terminal S16, and the third light emitting diode The sixth pole 6 of L13 is electrically connected to the ground line G through the fifth terminal S15. The method for detecting the above-mentioned DC three-hole socket by using the above-mentioned DC three-hole socket detection device includes the following steps:

Step 301, electrically connect the first end and the second end of the first circuit to the positive pole and the negative pole of the DC three-hole socket respectively.

In this embodiment, the first end S11 of the above-mentioned first circuit is electrically connected to the positive pole P of the DC three-hole socket, and the second end S12 of the above-mentioned first circuit is electrically connected to the negative pole N of the DC three-hole socket, so that the above-mentioned first An electrical circuit may be connected between the positive and negative poles of the aforementioned DC socket. Afterwards, whether the first light-emitting diode L11 in the above-mentioned first circuit emits light or not and the color of the light is used to determine whether the DC three-hole socket is connected.

Step 302, electrically connect the third terminal and the fourth terminal of the second circuit to the negative pole and the ground wire of the DC three-hole socket respectively.

In this embodiment, the third end S13 of the above-mentioned second circuit is electrically connected to the negative pole N of the DC three-hole socket, and the fourth end S14 of the above-mentioned second circuit is electrically connected to the ground wire G of the DC three-hole socket, so that the above-mentioned The second circuit can be connected between the negative pole of the above-mentioned DC socket and the ground wire. Afterwards, whether or not the first LED L11 in the first circuit emits light and the color of the light, and whether the second LED L12 in the second circuit emits light or not determines whether the DC three-hole socket is connected.

Step 303, electrically connect the fifth terminal and the sixth terminal of the third circuit to the ground wire and the positive pole of the DC three-hole socket respectively.

In this embodiment, the fifth terminal S15 of the above-mentioned third circuit is electrically connected to the ground wire G of the DC three-hole socket, and the sixth terminal S16 of the above-mentioned second circuit is electrically connected to the positive pole P of the DC three-hole socket, so that the above-mentioned The third circuit may be connected between the ground wire and the positive pole of the above-mentioned DC socket. Afterwards, through whether the first light-emitting diode L11 in the above-mentioned first circuit emits light or not and the light-emitting color, whether the second light-emitting diode L12 in the above-mentioned second circuit emits light or not, and the third light-emitting diode L13 in the third circuit Whether it emits light or not judges the connection status of the above-mentioned DC three-hole socket.

Step 304: Determine the detection result of the DC three-hole socket according to the lighting conditions of the first light emitting diode, the second light emitting diode and the third light emitting diode.

In this embodiment, when the above-mentioned first circuit, second circuit and third circuit are respectively connected between the positive pole P, the negative pole N and the ground wire G of the above-mentioned DC three-hole socket, according to the above-mentioned first light-emitting diode L11 Whether the light emitting diode L12 and the third light emitting diode L13 are light emitting or not, the light emitting color of the light emitting diode L11, the second light emitting diode L12 and the third light emitting diode L13 can have different light emitting Combination of conditions, each combination of different lighting conditions can correspond to different connection conditions of the positive pole, negative pole and ground wire of the DC three-hole socket, and finally determine the detection result of the above-mentioned DC three-hole socket.

In some optional implementations of this embodiment, the detection device for detecting the DC three-hole socket further includes: a first current limiting resistor R11 set in the first circuit, a second current limiting resistor R11 set in the second circuit The current limiting resistor R12 is set in the third current limiting resistor R13 in the third circuit. Here, the first current limiting resistor R11 is connected in series with the first light emitting diode L11, the second current limiting resistor R12 is connected in series with the second light emitting diode L12, the third current limiting resistor R13 is connected in series with the third light emitting diode L13 connected in series.

Please continue to refer to FIG. 4 , which shows a flow chart 400 of another embodiment of a method for detecting a DC three-hole socket according to the present application. As shown in the figure, in the DC three-hole socket detection method of this embodiment, the DC three-hole socket detection device shown in Figure 1 or Figure 2 is used to detect the DC three-hole socket, and the detection of the DC three-hole socket in this embodiment The method includes the following steps:

Step 401, electrically connect the first end and the second end of the first circuit to the positive pole and the negative pole of the DC three-hole socket respectively.

In this embodiment, the first end S11 of the above-mentioned first circuit is electrically connected to the positive pole P of the DC three-hole socket, and the second end S12 of the above-mentioned first circuit is electrically connected to the negative pole N of the DC three-hole socket, so that the above-mentioned first An electrical circuit may be connected between the positive and negative poles of the aforementioned DC socket.

Step 402, electrically connect the third terminal and the fourth terminal of the second circuit to the negative pole and the ground wire of the DC three-hole socket respectively.

In this embodiment, the third end S13 of the above-mentioned second circuit is electrically connected to the negative pole N of the DC three-hole socket, and the fourth end S14 of the above-mentioned second circuit is electrically connected to the ground wire G of the DC three-hole socket, so that the above-mentioned The second circuit can be connected between the negative pole of the above-mentioned DC socket and the ground wire.

Step 403, electrically connect the fifth terminal and the sixth terminal of the third circuit to the ground wire and the positive pole of the DC three-hole socket respectively.

In this embodiment, the fifth terminal S15 of the above-mentioned third circuit is electrically connected to the ground wire G of the DC three-hole socket, and the sixth terminal S16 of the above-mentioned second circuit is electrically connected to the positive pole P of the DC three-hole socket, so that the above-mentioned The third circuit may be connected between the ground wire and the positive pole of the above-mentioned DC socket.

Step 404, judging whether the first light emitting diode, the second light emitting diode, and the third light emitting diode are not emitting light.

In this embodiment, when the above-mentioned first circuit, second circuit and third circuit are connected between the positive pole P, the negative pole N and the ground wire G of the above-mentioned DC three-hole socket, so that the above-mentioned first circuit, second circuit and the third circuit can be energized. Then it is judged whether the first light emitting diode L11, the second light emitting diode L12 and the third light emitting diode L13 are not emitting light. If none of the above-mentioned first light emitting diode L11 , second light emitting diode L12 and third light emitting diode L13 emits light, go to step 405 . If at least one of the first light emitting diode L11 , the second light emitting diode L12 and the third light emitting diode L13 emits light, go to step 406 .

Step 405, determine that the DC three-hole socket is powered off.

In this embodiment, based on the determination in step 404 that the above-mentioned first light emitting diode L11, second light emitting diode L12 and third light emitting diode L13 do not emit light, then the first circuit, the second circuit and the If none of the third circuits is powered on, it can be determined that the above-mentioned DC three-hole socket is powered off.

Step 406, determine the power status of the DC three-hole socket.

In this embodiment, based on the judgment in step 404 that at least one of the first light emitting diode L11, the second light emitting diode L12 and the third light emitting diode L13 is emitting light, it can be determined that the above-mentioned DC three-hole socket is powered on, and then The connection status of the positive pole P, the negative pole N and the ground wire G in the DC three-hole socket can be continuously determined.

In this embodiment, when the second sub-light-emitting diode L112 of the first light-emitting diode emits light of the second color, the second light-emitting diode L12 does not emit light, and the third light-emitting diode L13 does not emit light, it can be determined that the first light-emitting secondary The tube L11 conducts in the reverse direction, while the second light-emitting diode L12 and the third light-emitting diode L13 do not conduct, so it can be seen that the DC three-hole socket is powered on and the positive pole P and negative pole N of the DC three-hole socket are reversed, as shown in Figure 5A , which shows the light-emitting states of each light-emitting diode in the DC three-hole socket detection device shown in FIG. 1 when the positive pole P and the negative pole N of the DC three-hole socket are reversed.

In this embodiment, when the first sub-light emitting diode L111 of the first light-emitting diode emits light of the first color, the second light-emitting diode L12 emits light, and the third light-emitting diode L13 does not emit light, it can be determined that the first light-emitting secondary The tube L11 is forward-conducting, the second light-emitting diode L12 is conducting, and the third light-emitting diode L13 is not conducting. It can be seen that the DC three-hole socket is powered on and the positive pole P and the ground wire G of the DC three-hole socket are reversed, as shown in Figure 5B As shown in FIG. 1 , it shows the light-emitting state of each light-emitting diode in the DC three-hole socket detection device shown in FIG. 1 when the positive pole P and the ground wire G of the DC three-hole socket are reversed.

In this embodiment, when the first sub-light emitting diode L111 of the first light-emitting diode emits light of the first color, the second light-emitting diode L12 does not emit light, and the third light-emitting diode L13 emits light, it can be determined that the first light-emitting diode The tube L11 is forward-conducting, the second light-emitting diode L12 is not conducting, and the above-mentioned third light-emitting diode L13 is conducting. It can be seen that the DC three-hole socket is powered on and the negative pole N and the ground wire G of the DC three-hole socket are reversed, as shown in the figure As shown in 5C, it shows the light-emitting state of each light-emitting diode in the DC three-hole socket detection device shown in FIG. 1 when the negative pole N of the DC three-hole socket and the ground wire G are reversed.

In this embodiment, when the first light-emitting diode L11 does not emit light, the second light-emitting diode L12 emits light, and the third light-emitting diode L13 does not emit light, it can be determined that the first light-emitting diode L11 and the third light-emitting diode L13 are not turned on. If the above-mentioned second light-emitting diode L12 is turned on, it can be seen that the DC three-hole socket is powered on and the DC three-hole socket lacks the positive pole P, as shown in Figure 5D, which shows the situation in which the DC three-hole socket lacks the positive pole P. The light-emitting state of each light-emitting diode in the DC three-hole socket detection device shown in 1.

In this embodiment, when the first light-emitting diode L11 does not emit light, the second light-emitting diode L12 does not emit light, and the third light-emitting diode L13 emits light, it can be determined that the first light-emitting diode L11 and the second light-emitting diode L12 are not turned on. On, the above-mentioned third light-emitting diode L13 conducts, it can be seen that the DC three-hole socket is powered on and the DC three-hole socket lacks the negative pole N, as shown in Figure 5E, which shows the situation in which the DC three-hole socket lacks the negative pole N. The light-emitting state of each light-emitting diode in the DC three-hole socket detection device shown in 1.

In this embodiment, when the first sub-LED L111 of the first LED emits light of the first color, the second LED L12 emits light, and the third LED L13 emits light, it can be determined that the first LED L11 is forward-conducting, and the second light-emitting diode L12 and the third light-emitting diode L13 are also conducting. It can be determined that the DC three-hole socket is powered on and the DC three-hole socket lacks a ground wire G, as shown in Figure 5F, which shows the DC three-hole When the socket lacks the ground wire G, the light-emitting states of the light-emitting diodes in the DC three-hole socket detection device shown in FIG. 1 . Or the DC three-hole socket is normal, as shown in FIG. 5G , which shows the light-emitting states of the light-emitting diodes in the DC three-hole socket detection device shown in FIG. 1 when the DC three-hole socket is normal. At this time, it is necessary to continue to judge the connection status of the above-mentioned DC three-hole socket.

In some optional implementations of this embodiment, the detection device for detecting the DC three-hole socket further includes a first switch K1, and the first switch K1 can be set in the third circuit of the detection device, and The third light emitting diodes L23 are connected in series, as shown in FIG. 2 . When the first sub-light emitting diode L211 of the above-mentioned first light-emitting diode emits the first color light, the second light-emitting diode L22 emits light, and the third light-emitting diode L23 emits light, it is determined that the DC three-hole socket is powered on and the DC three-hole socket lacks a ground wire G or the When the DC three-hole socket is normal, the above-mentioned first switch K1 is turned off, and the specific connection condition of the above-mentioned DC three-hole socket is continued to be judged. When the first sub-light-emitting diode L211 of the first light-emitting diode emits the first color light, the second light-emitting diode L22 emits light, and the third light-emitting diode L23 does not emit light, as shown in FIG. . When the first sub-LED L211 emits light of the first color, the second LED L22 does not emit light, and the third LED L23 does not emit light, as shown in FIG. 5I , it can be determined that the DC three-hole socket lacks a ground wire.

In some optional implementations of this embodiment, the first switch K1 in the above-mentioned detection device for detecting DC three-hole sockets can also be set in the second circuit of the detection device, and be connected in series with the third light emitting diode L23 connect. When the first sub-light emitting diode L211 of the above-mentioned first light-emitting diode emits the first color light, the second light-emitting diode L22 emits light, and the third light-emitting diode L23 emits light, it is determined that the DC three-hole socket is powered on and the DC three-hole socket lacks a ground wire G or the When the DC three-hole socket is normal, the above-mentioned first switch K1 is turned off, and the specific connection condition of the above-mentioned DC three-hole socket is continued to be judged. When the first sub-LED L211 of the first LED emits light of the first color, the second LED L22 does not emit light, and the third LED L23 emits light, it can be determined that the DC three-hole socket is normal. When the first sub-LED L211 of the first LED emits light of the first color, but the second LED L22 and the third LED L23 do not emit light, it can be determined that the DC three-hole socket lacks a ground wire.

The DC three-hole socket detection method provided by the above-mentioned embodiments of the present application corresponds to the different connections of the DC three-hole socket through the different light-emitting states of the first light-emitting diode, the second light-emitting diode, and the third light-emitting diode in the DC three-hole socket detection device. The connection of the positive pole, negative pole and ground wire of the above-mentioned DC three-hole socket can be accurately detected.

The above description is only a preferred embodiment of the present application and an illustration of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solution formed by the specific combination of the above-mentioned technical features, but should also cover the technical solutions made by the above-mentioned technical features without departing from the inventive concept. Other technical solutions formed by any combination of or equivalent features thereof. For example, a technical solution formed by replacing the above-mentioned features with technical features with similar functions disclosed in (but not limited to) this application.

Claims (10)

1. a direct current Three-hole socket detection device, described direct current Three-hole socket includes positive pole, negative pole and ground wire, and its feature exists In, described direct current Three-hole socket detection device includes:

First circuit, described first circuit includes the first end, the second end and the first light emitting diode, wherein, described first Optical diode is two-color diode, and the first pole of described first light emitting diode is electrically connected with described positive pole by described first end Connecing, the second pole of described first light emitting diode is connected with described negative electricity by described second end, so that described first circuit First light emitting diode described in when forward is connected or reversely connects sends the first coloured light or the second coloured light.

Direct current Three-hole socket the most according to claim 1 detection device, it is characterised in that also include:

Second circuit, described second circuit includes the 3rd end, the 4th end and the second light emitting diode, wherein, described second 3rd pole of optical diode is electrically connected to ground with described by described 4th end, and the of described second light emitting diode quadrupole passes through Described 3rd end is connected with described negative electricity；

Tertiary circuit, described tertiary circuit includes the 5th end, the 6th end and the 3rd light emitting diode, wherein, described 3rd 5th pole of optical diode is connected with described positive electrical by described 6th end, and the six types of severe debility disease of described 3rd light emitting diode is passed through Described 5th end is electrically connected to ground with described.

Direct current Three-hole socket the most according to claim 2 detection device, it is characterised in that also include the first switch；

Described first switch is arranged in described second circuit, and described first switch is connected with described second light emitting diode even Connect；Or

Described first switch is arranged in described tertiary circuit, and described first switch is connected with described 3rd light emitting diode even Connect.

Direct current Three-hole socket the most according to claim 3 detection device, it is characterised in that also include:

First current-limiting resistance, is arranged in described first circuit, described first current-limiting resistance and described first Light-Emitting Diode string Connection connects；

Second current-limiting resistance, is arranged in described second circuit, described second current-limiting resistance and described second Light-Emitting Diode string Connection connects；

3rd current-limiting resistance, is arranged in described tertiary circuit, described 3rd current-limiting resistance and described 3rd Light-Emitting Diode string Connection connects.

5. a direct current Three-hole socket detection method, it is characterised in that for detecting direct current three hole of described direct current Three-hole socket Socket detection device includes the first circuit, second circuit and tertiary circuit；

Described first circuit includes the first end, the second end and the first light emitting diode, and wherein, described first light emitting diode is Two-color diode, the first pole of described first light emitting diode is connected with described positive electrical by described first end, and described first Second pole of light emitting diode is connected with described negative electricity by described second end so that described first circuit in forward connection or First light emitting diode described in when reversely connecting sends the first coloured light or the second coloured light；

Described second circuit includes the 3rd end, the 4th end and the second light emitting diode, wherein, described second light emitting diode 3rd pole is electrically connected to ground with described by described 4th end, and the of described second light emitting diode is quadrupole by described 3rd end It is connected with described negative electricity；

Described tertiary circuit includes the 5th end, the 6th end and the 3rd light emitting diode, wherein, described 3rd light emitting diode 5th pole is connected with described positive electrical by described 6th end, and the six types of severe debility disease of described 3rd light emitting diode passes through described 5th end It is electrically connected to ground with described；

Described method includes:

First end and second end of described first circuit are connected with positive pole and the negative electricity of described direct current Three-hole socket respectively；

By the 3rd end of described second circuit and the 4th end respectively with the negative pole of described direct current Three-hole socket and being electrically connected to ground；

5th end and the 6th end of described tertiary circuit are connected with ground wire and the positive electrical of described direct current Three-hole socket respectively；

According to described first light emitting diode, the second light emitting diode and the luminous situation of the 3rd light emitting diode, determine described The testing result of direct current Three-hole socket.

Direct current Three-hole socket detection method the most according to claim 5, it is characterised in that described luminous according to described first Diode, the second light emitting diode and the luminous situation of the 3rd light emitting diode, determine the detection knot of described direct current Three-hole socket Really, including:

Judge that described first light emitting diode, the second light emitting diode, the 3rd light emitting diode are the most luminous；

If, it is determined that described direct current Three-hole socket power-off；

If not, it is determined that the energising situation of described direct current Three-hole socket.

Direct current Three-hole socket detection method the most according to claim 6, it is characterised in that described determine described direct current three hole The energising situation of socket, including:

If described first light emitting diode sends out the second coloured light, the second light emitting diode is the most luminous, the 3rd light emitting diode is the most luminous, Then determine that positive pole and the negative pole of described direct current Three-hole socket connect instead；

If it is the most luminous, then that described first light emitting diode sends out the first coloured light, the second lumination of light emitting diode, the 3rd light emitting diode Determine that positive pole and the ground wire of described direct current Three-hole socket connect instead；

If described first light emitting diode is sent out, the first coloured light, the second light emitting diode be the most luminous, the 3rd lumination of light emitting diode, then Determine that negative pole and the ground wire of described direct current Three-hole socket connect instead；

If described first light emitting diode is the most luminous, the second lumination of light emitting diode, the 3rd light emitting diode are the most luminous, it is determined that Described direct current Three-hole socket lacks positive pole；

If described first light emitting diode is the most luminous, the second light emitting diode is the most luminous, the 3rd lumination of light emitting diode, it is determined that Described direct current Three-hole socket lacks negative pole；

If described first light emitting diode sends out the first coloured light, the second lumination of light emitting diode, the 3rd lumination of light emitting diode, the most really Fixed described direct current Three-hole socket lacks ground wire or described direct current Three-hole socket is normal.

Direct current Three-hole socket detection method the most according to claim 7, it is characterised in that described direct current Three-hole socket detects Device also includes that the first switch being arranged in described second circuit, described first switch are connected with described second Light-Emitting Diode Connect；

If described first light emitting diode sends out the first coloured light, the second lumination of light emitting diode, the 3rd lumination of light emitting diode, Then determine that described direct current Three-hole socket lacks ground wire or described direct current Three-hole socket is normal, including:

Disconnect described first switch, if described first light emitting diode send out the first coloured light, the second light emitting diode the most luminous, the 3rd Lumination of light emitting diode, the most described direct current Three-hole socket is normal；

Disconnect described first switch, if described first light emitting diode send out the first coloured light, the second light emitting diode the most luminous, the 3rd Light emitting diode is the most luminous, and the most described direct current Three-hole socket lacks ground wire.

Direct current Three-hole socket detection method the most according to claim 7, it is characterised in that described direct current Three-hole socket detects Device also includes that the first switch being arranged in described tertiary circuit, described first switch are connected with described 3rd Light-Emitting Diode Connect；

If described first light emitting diode sends out the first coloured light, the second lumination of light emitting diode, the 3rd lumination of light emitting diode, Then determine that described direct current Three-hole socket lacks ground wire or described direct current Three-hole socket is normal, including:

Disconnect described first switch, if described first light emitting diode send out the first coloured light, the second lumination of light emitting diode, the 3rd Optical diode is the most luminous, and the most described direct current Three-hole socket is normal；

Disconnect described first switch, if described first light emitting diode send out the first coloured light, the second light emitting diode the most luminous, the 3rd Light emitting diode is the most luminous, and the most described direct current Three-hole socket lacks ground wire.

Direct current Three-hole socket detection method the most according to claim 5, it is characterised in that described direct current Three-hole socket is examined Survey device also to include:

First current-limiting resistance, is arranged in described first circuit, described first current-limiting resistance and described first Light-Emitting Diode string Connection connects；

Second current-limiting resistance, is arranged in described second circuit, described second current-limiting resistance and described second Light-Emitting Diode string Connection connects；

3rd current-limiting resistance, is arranged in described tertiary circuit, described 3rd current-limiting resistance and described 3rd Light-Emitting Diode string Connection connects.