Engine urea pump power supply detector and use method

Abstract

The engine urea pump power supply detector comprises a connector, a power indicator, an ignition indicator and a plurality of pin wires, the front ends of the eighth pin wire and the sixteenth pin wire are connected with the positive electrode of the power indicator, and the rear ends of the eighth pin wire and the sixteenth pin wire are connected with the connector; the front ends of the seventh pin lead and the fifteenth pin lead are branched to form branch lines and are respectively connected with the cathodes of the ignition indicating lamp and the power indicating lamp, and the rear ends of the seventh pin lead and the fifteenth pin lead are connected with the connector; the front end of the fourth pin wire is connected with the positive electrode of the ignition indicating lamp, and the rear end of the fourth pin wire is connected with the connector. Whether power supply of the engine urea pump is normal or not and where problems occur can be quickly and accurately checked without a power supply circuit diagram of the engine urea pump and a special tool for electric appliance detection, operation is simple, and professional dependence on fault checking personnel is reduced.

Description

Technical Field

[0001] The invention relates to the field of engines, and in particular to an engine urea pump power supply detector and a use method thereof. Background Art

[0002] At present, during the engine development and trial production process and the user's use process, it is inevitable that the urea pump power supply is abnormal, causing the engine to work poorly. At present, the engine urea pump power supply detection requires electrical professionals to check according to the urea pump power supply circuit diagram, using special instruments such as multimeters and special probes. The inspection cycle is long and the efficiency is low. People without electrical basics do not understand the inspection.

[0003] The disclosure of the above background technology content is only used to assist in understanding the concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Summary of the invention

[0004] The purpose of this method is to provide an engine urea pump power supply tester to solve the problem of whether there is a problem with the urea pump power supply and where the problem is located, without the need for electrical professionals, urea pump power supply circuit diagrams, and special electrical detection tools.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] An engine urea pump power supply detector comprises a connector, a power indicator light, an ignition indicator light and a plurality of pin wires, wherein the front ends of the 8th pin wire and the 16th pin wire are connected to the positive pole of the power indicator light, and the rear ends are connected to the connector; the front ends of the 7th pin wire and the 15th pin wire are branched out and respectively connected to the negative poles of the ignition indicator light and the power indicator light, and the rear ends are connected to the connector; the front end of the 4th pin wire is connected to the positive pole of the ignition indicator light, and the rear end is connected to the connector.

[0007] Furthermore, the pin wire has a withstand voltage of 60V.

[0008] Furthermore, the power indicator light and the ignition indicator light are diode lamps or incandescent lamps.

[0009] Furthermore, it also includes a shell, which is arranged on the outside of the connector.

[0010] Furthermore, the connector is a 33482-1601 connector.

[0011] Furthermore, the 8# and 16# pins of the connector are connected together by the 8th pin wire 102 and the 16th pin wire 103 respectively, and are connected to the positive pole of the power indicator light.

[0012] Furthermore, the 7# and 15# pins of the connector are connected together by the 7# pin wire 104 and the 15# pin wire 105 respectively, and are connected to the positive electrode of the ignition indicator light.

[0013] A method for using an engine urea pump power supply detector comprises the following steps:

[0014] S1. Select the corresponding connector according to the connector for powering the engine urea pump;

[0015] S2. Insert the connector of the detector into the connector of the urea pump harness to be tested;

[0016] S3, turn on the power switch and ignition switch of the urea pump to be tested;

[0017] S4. Observe whether the power indicator light 107 and the ignition indicator light 108 are on to determine whether the power indicator light and the ignition indicator light are normal.

[0018] Furthermore, when the 107 power indicator light is on, it indicates that the urea pump is powered normally, the 8# and 16# pins of the connector are normally connected to the positive power supply, and the 7# and 15# pins of the connector are normally connected to the negative power supply;

[0019] When the 107 power indicator light is off, it means that the urea pump power supply is abnormal. It can be judged that the circuit has one of the following three situations:

[0020] (1) The positive circuit of the power connected to the 8# and 16# pins of the connector is disconnected, and the negative circuit of the power connected to the 7# and 15# pins of the connector is disconnected;

[0021] (2) The positive power supply connected to the 8# and 16# pins of the connector is conducting normally, and the negative power supply connected to the 7# and 15# pins of the connector is disconnected;

[0022] (3) The positive power supply connected to the 8# and 16# pins of the connector is disconnected, and the negative power supply connected to the 7# and 15# pins of the connector is connected normally.

[0023] Furthermore, when the ignition indicator light is on, it means that the urea pump ignition circuit is normal, the 4# pin of the connector is connected to the ignition switch normally, and the 7# and 15# pins of the connector are connected to the negative power supply normally;

[0024] When the 108 ignition indicator light is off, it means that the urea pump ignition circuit is abnormal. It can be judged that the circuit has one of the following three conditions:

[0025] (1) The ignition switch circuit connected to the 4# pin of the connector is broken; the negative power circuit connected to the 7# and 15# pins of the connector is broken.

[0026] (2) The ignition switch circuit connected to the 4# pin of the connector is conducting normally; the negative circuit of the power supply connected to the 7# and 15# pins of the connector is disconnected;

[0027] (3) The ignition switch circuit connected to the 4# pin of the connector is broken; the negative power supply connected to the 7# and 15# pins of the connector is conducting normally.

[0028] Compared with the prior art, the advantages and beneficial effects of the present invention are:

[0029] The engine urea pump power supply detection method of the present invention has obvious advantages in checking whether the engine urea pump power supply is normal, and the detection can be carried out without electrical professionals, urea pump power supply circuit diagrams, and special electrical detection tools. During the detection, it is only necessary to insert the detection instrument into the urea pump wiring harness connector to be detected, and then determine the fault location according to whether the power indicator light and the ignition indicator light on the shell are on or off. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 4 is a circuit diagram of the detection method of the present invention.

[0031] 101-connector, 102-8th pin wire, 103-16th pin wire, 104-7th pin wire, 105-15th pin wire, 106-4th pin wire, 107-power indicator light, 108-ignition indicator light. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below in conjunction with specific embodiments. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope of the present invention and its application.

[0033] like Figure 1As shown, an engine urea pump power supply detector includes a connector, a power indicator light, an ignition indicator light and a plurality of pin wires, wherein the connector 101 is a 33482-1601 connector; the 8th pin wire 102 and the 16th pin wire 103 in the connector 101 are connected together to the positive pole of the power indicator light 107; the 7th pin wire 104 and the 15th pin wire 105 in the connector 101 are connected together to the negative pole of the ignition indicator light 108 and the power indicator light 107; the 4th pin wire 106 in the connector 101 is connected to the positive pole of the ignition indicator light 108. When performing the inspection work, the connector 101 is connected to the connector of the engine urea pump power supply and then the circuit is connected. Whether the urea pump power supply is normal is determined according to whether the power indicator light 107 and the ignition indicator light 108 are on or off. Preferably, the pin wire is selected to withstand a voltage of 60V, and the current matches the selected indicator light.

[0034] In a preferred embodiment, a shell is further included. The shell is arranged on the outside of the connector 101. The shell is convenient for carrying and plugging and unplugging operations, and can also protect the connector 101 and each pin wire. The shell is 6-10 cm long, 4-6 cm wide, and 2-4 cm high. The power indicator light 107 and the ignition indicator light 108 are arranged at a position that is convenient for observation, such as the front side of the shell, and a conspicuous position near the power indicator light 107 and the ignition indicator light 108 is marked with text.

[0035] Specifically, the power indicator light 107 and the ignition indicator light 108 respectively indicate whether there is a circuit breakage problem in the power circuit and the ignition circuit. In a preferred embodiment, the luminous colors of the power indicator light 107 and the ignition indicator light 108 can be selected to be the same or different, and a diode lamp or an incandescent lamp with a withstand voltage of 30V is preferably used. For example, when the power indicator light 107 and the ignition indicator light 108 are selected as diode lamps, an appropriate current limiting resistor is selected according to the electrical characteristics of the diode lamp.

[0036] In some implementations, the 8# pin of the connector 101 is connected with the 8th pin wire 102 , and the 16# pin is connected with the 16th pin wire 103 , and the 16th pin wire 103 is connected in parallel with the 8th pin wire 102 .

[0037] In some implementations, the 7# pin of the connector 101 is connected with the 7th pin wire 104 , and the 15# pin is connected with the 15th pin wire 105 , and the 15th pin wire 105 is connected in parallel with the 7th pin wire 104 .

[0038] A method for using an engine urea pump power supply detector comprises the following steps:

[0039] S1. Select the corresponding connector 101 according to the connector of the engine urea pump power supply; for example, if the urea pump power supply adopts 33472-1601 connector, then select the corresponding 33482-1601 connector 101 to connect with the 33472-1601 connector;

[0040] S2, inserting the connector 101 of the detector into the wiring harness connector of the urea pump to be detected;

[0041] S3, turn on the power switch and ignition switch of the urea pump to be tested;

[0042] S4. Observe whether the power indicator light 107 and the ignition indicator light 108 are on to determine whether the power circuit and the ignition circuit are normal.

[0043] When the power indicator light 107 uses a diode lamp, its positive pole needs to be connected to the 8th pin wire 102 and the 16th pin wire 103, and its negative pole needs to be connected to the 7th pin wire 104 and the 15th pin wire 105; when the power indicator light 107 uses an incandescent lamp, there is no need to distinguish the positive and negative poles.

[0044] In the above, when the power indicator light 107 is on, it means that the urea pump is powered normally, the positive power connection of the 8# and 16# pins of the 33482-1601 connector 101 is normal, and the 7# and 15# pins of the 33482-1601 connector 101 are connected to the negative power connection normally.

[0045] When the power indicator light 107 is off, it means that the urea pump power supply is abnormal. It can be judged that the circuit has one of the following three situations:

[0046] (1) The positive power supply connected to the 8# and 16# pins of the 33482-1601 connector 101 is disconnected (such as the power switch is disconnected, the power switch and the positive power supply are disconnected, the power switch is not engaged or damaged), and the negative power supply connected to the 7# and 15# pins of the 33482-1601 connector 101 is disconnected;

[0047] (2) The positive power supply connected to the 8# and 16# pins of the 33482-1601 connector 101 is conducting normally, and the negative power supply connected to the 7# and 15# pins of the 33482-1601 connector 101 is disconnected;

[0048] (3) The positive power supply connected to the 8# and 16# pins of the 33482-1601 connector 101 is disconnected (such as the power switch is disconnected, the power switch and the positive power supply are disconnected, the power switch is not engaged or is damaged), and the negative power supply connected to the 7# and 15# pins of the 33482-1601 connector 101 is conducting normally.

[0049] In some embodiments, when a diode lamp is used for the ignition indicator light 108, its positive pole needs to be connected to the 4th pin wire 106, and its negative pole needs to be connected to the 7th pin wire 104 and the 15th pin wire 105; when an incandescent lamp is used, the positive and negative poles do not need to be distinguished.

[0050] In the above, when the ignition indicator light 108 is on, it indicates that the urea pump ignition circuit is normal, the ignition switch connected to the 4# pin of the 33482-1601 connector 101 is connected normally, and the negative power connection connected to the 7# and 15# pins of the 33482-1601 connector 101 is normal;

[0051] When the ignition indicator light 108 is off, it means that the urea pump ignition circuit is abnormal. It can be judged that the circuit has one of the following three conditions:

[0052] (1) The ignition switch circuit connected to the 4# pin of the 33482-1601 connector 101 is broken (such as the ignition switch is broken, the ignition switch and the positive power supply are broken, the ignition switch is not engaged or is damaged); the negative power supply connected to the 7# and 15# pins of the 33482-1601 connector 101 is broken.

[0053] (2) The ignition switch circuit connected to the 4# pin of the 33482-1601 connector 101 is conducting normally; the negative circuit of the power supply connected to the 7# and 15# pins of the 33482-1601 connector 101 is broken.

[0054] (3) The ignition switch circuit connected to the 4# pin of the 33482-1601 connector 101 is broken (such as the ignition switch is broken, the ignition switch and the positive power supply are disconnected, the ignition switch is not engaged or is damaged); the negative power supply connected to the 7# and 15# pins of the 33482-1601 connector 101 is conducting normally.

[0055] The above contents are further detailed descriptions of the present invention in combination with specific / preferred implementations, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can also make several substitutions or modifications to these described embodiments without departing from the concept of the present invention, and these substitutions or modifications should be regarded as belonging to the protection scope of the present invention.

Claims

1. An engine urea pump power supply detector, characterized in that: It includes a connector, a power indicator light, an ignition indicator light and a plurality of pin wires, wherein the front ends of the 8th pin wire and the 16th pin wire are connected to the positive pole of the power indicator light, and the rear ends are connected to the connector; the front ends of the 7th pin wire and the 15th pin wire branch out into branches and are respectively connected to the negative poles of the ignition indicator light and the power indicator light, and the rear ends are connected to the connector; the front end of the 4th pin wire is connected to the positive pole of the ignition indicator light, and the rear end is connected to the connector.

2. The engine urea pump power supply detector according to claim 1, characterized in that: The pin wire is selected to withstand a voltage of 60V.

3. The engine urea pump power supply detector according to claim 1, characterized in that: The power indicator light and the ignition indicator light are diode lamps or incandescent lamps.

4. The engine urea pump power supply detector according to claim 1, characterized in that: It also includes a shell, which is arranged on the outside of the connector.

5. The engine urea pump power supply detector according to claim 1, characterized in that: The connector is a 33482-1601 connector.

6. The engine urea pump power supply detector according to claim 5, characterized in that: The 8# and 16# pins of the connector are connected together through the 8th pin wire and the 16th pin wire respectively, and are connected to the positive pole of the power indicator light.

7. The engine urea pump power supply detector according to claim 5, characterized in that: The 7# and 15# pins of the connector are connected together through the 7# pin wire and the 15# pin wire respectively, and are connected to the negative poles of the power indicator light and the ignition indicator light.

8. A method for using the engine urea pump power supply detector as claimed in claim 5, characterized in that: The following steps are involved: S1. Select the corresponding connector according to the connector for powering the engine urea pump; S2. Insert the connector of the detector into the connector of the urea pump harness to be tested; S3, turn on the power switch and ignition switch of the urea pump to be tested; S4. Observe whether the power indicator light and the ignition indicator light are on to determine whether the power indication circuit and the ignition indication circuit are normal.

9. The method for using the engine urea pump power supply detector according to claim 5, characterized in that: When the power indicator light is on, it means that the urea pump is powered normally, the positive power line connected to the 8# and 16# pins of the connector is normal, and the negative power line connected to the 7# and 15# pins of the connector is normal; When the power indicator light is off, it means that the urea pump power supply is abnormal. It can be judged that the circuit has one of the following three situations: (1) The positive circuit of the power connected to the 8# and 16# pins of the connector is disconnected, and the negative circuit of the power connected to the 7# and 15# pins of the connector is disconnected; (2) The positive power supply connected to the 8# and 16# pins of the connector is conducting normally, and the negative power supply connected to the 7# and 15# pins of the connector is disconnected; (3) The positive power supply connected to the 8# and 16# pins of the connector is disconnected, and the negative power supply connected to the 7# and 15# pins of the connector is connected normally.

10. The method for using the engine urea pump power supply detector according to claim 9, characterized in that: When the ignition indicator light is on, it means that the urea pump ignition circuit is normal, the ignition switch circuit connected to the 4# pin of the connector is normal, and the negative power circuit connected to the 7# and 15# pins of the connector is normal; When the ignition indicator light is off, it means that the urea pump ignition circuit is abnormal. It can be judged that the circuit has one of the following three conditions: (1) The ignition switch circuit connected to the 4# pin of the connector is disconnected; the negative power supply circuit connected to the 7# and 15# pins of the connector is disconnected. (2) The ignition switch circuit connected to the 4# pin of the connector is conducting normally; the negative circuit of the power supply connected to the 7# and 15# pins of the connector is disconnected; (3) The ignition switch circuit connected to the 4# pin of the connector is broken; the negative power supply connected to the 7# and 15# pins of the connector is conducting normally.

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