Wire harness searching device and wire harness rapid detection method thereof

Abstract

The invention discloses a wire harness searching device and a method for quickly detecting a wire harness. The device is composed of an LED cable serial number feedback area, a cable fixing port, a cable testing terminal and a direct-current power supply input interface which are arranged on a box body panel. The method comprises the steps that when welding of a cable to be detected is detected, an electric connector at one end is welded firstly and then inserted into a cable fixing port, and the other end of the cable is connected with a required aviation contact pin suitable for an aviation plug in a pressing mode; a set direct current 5V working power supply is switched on to switch on an S0 switch; then, a single cable searching mode is used, and the electrical loop is switched on as long as any one of the to-be-searched contact pins is inserted into the cable test terminal on the panel of the box body at will; at the moment, one indicating lamp in a cable serial number feedback area above the panel of the box body is lightened, the serial number of the lightened indicating lamp is a cable serial number, and a cable number pipe is threaded; and the steps are repeated for detection, and the serial numbers of other cables of the wire harness are searched.

Description

Technical Field

[0001] The invention relates to a wire harness finding device, in particular to a wire harness finding device used in the manufacture of aviation control box detection equipment. Background Art

[0002] At present, aviation electrical products have many electrical interfaces in the power supply and distribution control boxes, and the number of detection points is relatively large. When manufacturing the corresponding detection equipment, the manufacture of the supporting detection cables is a relatively time-consuming task, especially when the detection cable length is required to be more than 2 meters and some special field tests require the cable to be more than 10 meters. Finding and numbering the cables is a complicated and tedious task, which requires a lot of repetitive operations to accurately locate the cables. The more cables there are, the more time-consuming it is. This kind of cable manufacturing is also a problem that must be faced by wire harness manufacturers in the aviation manufacturing industry, automotive wiring harness manufacturing and other fields. In some small and medium-sized enterprises, automated wiring harness manufacturing equipment often means that the cost is too high and cannot be afforded, and cable manufacturing takes up a lot of manufacturing time during the equipment research and development process. Summary of the Invention

[0003] The present invention aims to solve the technical problem that, during the manufacturing process of a cable bundle, the cable search process is complicated and the manufacturing process is time-consuming.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: A wiring harness search device includes a box panel, an LED cable serial number feedback area, a cable fixing port, a cable test terminal, and a DC power input interface. The box panel is provided with an LED cable serial number feedback area, a cable fixing port, a cable test terminal, and a DC power input interface.

[0005] The LED cable serial number feedback area is composed of more than two groups of current-limiting resistors and LED light-emitting diodes.

[0006] The cable fixing port is composed of two electrical connectors, which are an electrical connector XS1 and an electrical connector XS2.

[0007] The cable test terminal is a terminal post or other conductive terminal.

[0008] Each pin of the electrical connector XS1 and the electrical connector XS2 is connected in series with a loop current limiting resistor and an LED light-emitting diode, and each path is further connected to the positive end of the DC power input interface, and the negative end of the DC power input interface is further connected in series with a cable test terminal; the positive end of the DC power input interface is also connected in series with a fuse connection and a main power switch; a resistor and a power indicator light are connected in parallel between the positive end of the DC power input interface and the negative end of the DC power input interface.

[0009] A method for quickly detecting a wiring harness using a wiring harness search device comprises the following steps: Step 1: When testing the welding of the cable to be tested, first weld the electrical connector on one end, then insert it into the cable fixed port, and crimp the other end of the cable to the required aviation plug and the appropriate aviation pin; Step 2: Set up the DC 5V working power supply and turn on the S0 switch; Step 3: Use the single cable search method again. Simply insert any pin to be found into the cable test terminal on the box panel, and the electrical circuit will be connected. Step 4: At this time, an indicator light in the cable number feedback area above the box panel will light up. The number of the lit indicator light is the cable number. Put on the cable number tube; Step 5: Repeat steps 1 to 4 to find the serial numbers of other cables in the harness.

[0010] The beneficial effects of adopting the above technical solution are: 1. The cable number search of the present invention is more intuitive and efficient, and the wiring harness manufacturing time is shortened.

[0011] 2. The manufacturing and maintenance costs of the invention are extremely low.

[0012] 3. The invention can be mass-produced, the equipment development cost will be lower, and the market application can be quickly promoted. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the panel structure of the wiring harness search device of the present invention.

[0014] Figure 2 This is a schematic diagram of the electrical principle of the wiring harness search device of the present invention.

[0015] In the figure: 1- box panel, 2- LED cable serial number feedback area, 3- cable fixing port, 4- cable test terminal, 5- DC power input interface. DETAILED DESCRIPTION

[0016] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0017] Brief description of the harness search device: The layout of the device box panel 1 is as follows Figure 1As shown, the upper part is the LED cable serial number feedback area 2, and the middle part is the cable fixed end interface 3 area. The interface in the figure uses the DB78-core DB plug as an example to better illustrate this solution. Its interface can be replaced with the required type according to actual conditions. There is a cable test terminal 4 below as a cable detection point. It can use a terminal block, jack or other conductive terminal to facilitate direct contact of the cable with it during detection. In addition, the box panel 1 is designed with a DC power input interface 5 connected to the working DC regulated power supply of the device. It should be noted that the power supply voltage should be a safe voltage input and should be designed as a DC 5V working power supply as much as possible. This can improve the safety of the equipment while saving equipment research and development costs.

[0018] Manufacturing method and testing principle of wiring harness search device: The principle is to weld two electrical connectors in parallel, i.e. Figure 1 XS1 and XS2 in the figure are a male and a female paired plug. Each pin of the electrical connector is connected in series with a circuit current limiting resistor and an LED light-emitting diode. Each circuit is then connected to the positive end of the DC power input interface 5. The negative end of the DC power input interface 5 is then connected in series with a terminal or other conductive terminal as a cable test terminal 4 used as a test interface. When one end of the tested cable is welded, it is inserted into the socket of the device, the power control switch of the device is turned on, and then any one of the other ends of the tested cable is connected to the test terminal. The electrical circuit is connected, and the indicator light in the cable serial number feedback area 2 will be lit. The serial number of the lit indicator light is the cable serial number. Put on the line number tube and continue the above method to detect and find the serial numbers of other cables in the harness.

[0019] like Figure 1 As shown, above the box panel 1 is the cable number feedback indicator area 2, which indicates whether the cable is connected or disconnected by turning on and off the LED. The cable fixed end interface 3 is used for the socket at one end of the tested cable, and the other end of the tested cable is connected to the cable test terminal 4 through a single cable. The cable number can be found by directly lighting up one of the indicator lights above.

[0020] like Figure 2 As shown, S0 is the main power switch, and L0 is the power-on indicator. This example uses a DB78-pin DB plug. R1-R78 are current-limiting resistors, and L1-L78 are indicators for each circuit. The indicator leads are connected to the XS1 and XS2 electrical connectors, respectively. By manufacturing a matching adapter cable, such as a DB78-pin to DB50-pin adapter, backward compatibility with cable bundles containing fewer test cables is achieved. It should be noted that the type and quantity of electrical connectors here are determined based on actual conditions, but the number of indicators must be consistent with the number of pins on XS1 and XS2 on the cable's fixed-end connector 3 to meet actual production needs.

[0021] The present invention as a whole adopts plastic boxes of different specifications or other types of suitable materials as panels according to actual conditions, and uses mechanical processing methods to freely process the raw materials. For the processing of panel font logos, the existing printing technology is used. It is recommended to use a laser marking machine or UV printer for panel printing, which greatly shortens the panel production cycle, or directly outsource the processing and molding; the box panel 1 includes several parts, namely the cable serial number feedback area 2, the cable fixed end interface 3, the cable test terminal 4 and the DC power input interface 5 for external DC power supply. The feedback area uses L plus Arabic numerals to indicate the cable serial number of the tested cable bundle. The serial number of the indicator light that is lit during the test is the cable serial number.

[0022] The specific operations are as follows: According to the schematic diagram, connect the various components through cables to form a complete device. When welding (crimping) the cable to be tested for testing, first weld (crimp) one end of the electrical connector. In this example, weld one end of the DB plug first. After completion, insert it into the fixed end interface socket of this device. Crimp the other end of the cable to the required aviation plug and the appropriate aviation pin. Set the voltage of the DC power supply, turn on the S0 switch, and then use the single cable search method. Just insert any one of the pins to be found into the cable test terminal 4 in the box panel 1. An indicator light in the cable serial number feedback area 2 above the box panel 1 will light up. The corresponding indicator light indicates the cable serial number. Put it through the line number tube and insert it into the aviation plug. This search method is quick and convenient. Repeat the above operation to complete the search of the remaining cables to be tested.

[0023] The indicator light in cable number feedback area 2 is a circular LED. This can be manufactured in the form of a light board, with a current-limiting resistor also soldered to it. This board is then fixed to the box panel 1 with screws. The use of the cable fixed-end interface 3 requires selecting an appropriate electrical connector based on the company's actual situation. This example uses a 78-pin DB plug as the receptacle. A plug with the largest number of common connections is used as much as possible. This allows for backward compatibility with cable bundles with fewer cables under test by manufacturing a matching adapter cable, such as a DB78-pin to DB50-pin adapter. These ports require an LED and a current-limiting resistor connected in series, then back to the positive power supply terminal. It should be noted that the choice of connector for this port can be tailored to the specific situation. When an aviation plug is required, it can be used directly as the fixed-end interface of this device. When other types of interfaces are required, the corresponding cable bundle interface can be used as the fixed-end connector.

[0024] The present invention relates to a wire harness search device and a manufacturing method thereof. The device is a portable wire harness cable number search device, which provides a method for quickly searching a wire harness. The device aims to solve the problem of cumbersome cable search procedures and long manufacturing time in the cable harness manufacturing process, and provides a solution for saving cable manufacturing time, so as to achieve the purpose of rapid manufacturing and improved manufacturing efficiency. Its main advantage is that it can solve repetitive cable search work at low cost and high efficiency. Using this method, a wire harness detection device with different interfaces can be manufactured to meet the detection requirements of cable harnesses with different interfaces, that is, a rectangular connector, a circular connector (aviation plug) or other special-shaped connectors can be used as a reference for the test interface. It can be applied to various wire harness manufacturing fields.

[0025] The present invention provides a feasible solution that saves equipment purchase or reduces equipment research and development costs while providing high-efficiency work. It is mainly aimed at small and medium-sized enterprises that do not have automated wire harness detection equipment but actually have to face the needs of wire harness manufacturing and testing. Through this method, wire harness detection devices corresponding to different interfaces can be manufactured based on the electrical connectors frequently used by the enterprise itself.

Claims

1. A wiring harness search device, characterized in that: It comprises a box panel (1), an LED cable serial number feedback area (2), a cable fixing port (3), a cable test terminal (4), and a DC power input interface (5); the box panel (1) is provided with an LED cable serial number feedback area (2), a cable fixing port (3), a cable test terminal (4), and a DC power input interface (5).

2. The wire harness search device according to claim 1, characterized in that: The LED cable serial number feedback area (2) is composed of more than two groups of current limiting resistors and LED light emitting diodes.

3. The wire harness search device according to claim 1, characterized in that: The cable fixing port (3) is composed of two electrical connectors, which are respectively an electrical connector XS1 and an electrical connector XS2.

4. The wire harness search device according to claim 1, characterized in that: The cable test terminal (4) is a terminal post or other conductive terminal.

5. The wire harness search device according to claim 3, characterized in that: Each pin of the electrical connector XS1 and the electrical connector XS2 is connected in series with a loop current limiting resistor and an LED light emitting diode, and each path is further connected to the positive end of the DC power input interface (5), and the negative end of the DC power input interface (5) is further connected in series with a cable test terminal (4); the positive end of the DC power input interface (5) is also connected in series with a fuse connection and a main power switch; a resistor and a power indicator light are connected in parallel between the positive end of the DC power input interface (5) and the negative end of the DC power input interface (5).

6. The method for quickly detecting a wiring harness using a wiring harness search device according to claim 1, characterized in that: The steps include: Step 1: When testing the welding of the cable to be tested, first weld the electrical connector at one end, and then insert it into the cable fixing port (3). The other end of the cable is crimped with the required aviation plug and the appropriate aviation pin; Step 2: Set up the DC 5V working power supply and turn on the S0 switch; Step 3: Use the single cable search method again, just insert any one of the pins to be searched into the cable test terminal (4) on the box panel (1), and the electrical circuit will be connected; Step 4: At this time, an indicator light in the cable number feedback area (2) above the box panel (1) will be lit. The number of the indicator light that is lit is the cable number. Put on the cable number tube; Step 5: Repeat steps 1 to 4 to find the serial numbers of other cables in the harness.

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