Method for preventing wrong wiring of wiring terminal

Abstract

The invention discloses a method for preventing wrong wiring of a wiring terminal, and the method comprises the following steps: 1), arranging a pin and a plug box which are matched with each other in shape, enabling the pin and the plug box to be respectively communicated with different cables, and achieving the electrical connection of the pin and the plug box in a manner of inserting the pin into the plug box; (2) bosses are arranged on the surfaces of the contact pins according to the shapes of the contact pins, the positions of the bosses of the contact pins are different, grooves matched with the corresponding contact pins are formed in the insertion box, only the matched contact pins and the insertion box can achieve embedding of the bosses and the grooves, the unmatched contact pins cannot be inserted into the insertion box due to the fact that the bosses and the grooves are not matched, and the insertion box cannot be damaged. Therefore, matching of a specific pin and a plug box is realized. By arranging the bosses on the surfaces of the contact pins and arranging the matched grooves in the plug box, the plug-in connection of the specific contact pins and the plug box is realized, so that the phenomenon of wrong connection of electrical circuits can be avoided, the practicability is high, the positive promotion effect on the manufacturing of electrical elements is achieved, and the plug is suitable for wide popularization and application.

Description

Technical Field

[0001] The invention relates to the technical field of electrical interface components, and in particular to a method for preventing a wiring terminal from being connected incorrectly. Background Art

[0002] Existing electrical interfaces are in various forms. On a circuit board, there will be a variety of wiring ports of different sizes. Each wiring port not only has various letter labels, but also is distinguished by color as much as possible. Despite this, it is difficult for people who are not engaged in the electrical industry to insert the corresponding terminal into the corresponding connector. The difference in the size of the wiring port, in addition to the difference in information flux or power provided, is mainly to distinguish different terminals and ports. This distinction between ports and terminals has brought great inconvenience to the design of integrated circuits and the installation of various cables or sensors. It is necessary to produce terminals and wiring ports of various colors and sizes in a targeted manner and give letter labels, which is extremely unfavorable for the development of the electrical industry. Summary of the invention

[0003] In view of the deficiencies of the prior art, an object of the present invention is to provide a method that can unify all wiring terminals and wiring plugs and prevent the wiring terminals from being connected incorrectly with only slight differences in structure.

[0004] In order to achieve the above object, the present invention is implemented by the following technical solution: A method for preventing a wiring terminal from being connected incorrectly, comprising the following steps:

[0005] (1) Providing plug pins and plug boxes with matching shapes, the plug pins and plug boxes are connected to different cables respectively, and the electrical connection between the two is achieved by inserting the plug pin into the plug box;

[0006] (2) A boss is provided on the surface of the pin according to the shape of the pin, and the position of each pin boss is different. A groove matching the corresponding pin is provided inside the plug box. Only matching pins and plug boxes can achieve the engagement of the boss and the groove. Unmatched pins cannot be inserted into the plug box because the boss and the groove do not match, thereby achieving the matching of specific pins and plug boxes.

[0007] The working principle of this technical solution is to set a boss on the surface of the pin and a matching groove on the plug box to achieve the plug-in connection between a specific pin and the plug box, so as to avoid the phenomenon of wrong connection of the electrical circuit.

[0008] In order to better implement the method of the present invention, further, the plug pins and the plug box that can be universally mixed and plugged have the same boss structure and groove structure.

[0009] In order to better implement the method of the present invention, further, the function of the plug pin can be marked by setting different numbers of bosses on the plug pin, and the function of the plug box can be marked by setting different numbers of grooves on the plug box.

[0010] In order to better implement the method of the present invention, further, the plug pin and the plug box are both rectangular in shape.

[0011] In order to better implement the method of the present invention, further, the plug pin and the plug box are both transparent structures.

[0012] In order to better implement the method of the present invention, further, the plug box can be provided with a plurality of sockets, and each socket is matched with an independent pin by providing grooves at different positions.

[0013] In order to better implement the method of the present invention, further, if there are a plurality of sockets on the plug box, the sockets can be marked with letters or colors to indicate the functions of different sockets.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0015] (1) The present invention realizes the connection between a specific plug pin and a plug box by providing a boss on the surface of the plug pin and a matching groove on the plug box, thereby avoiding the occurrence of wrong connection of electrical circuits;

[0016] (2) The method provided by the present invention can unify the shape, size, and color of electrical interfaces. All electrical interfaces can be identified and connected only by the structural differences of the pins and the plug boxes, thereby reducing the production cost of electrical components and improving production efficiency.

[0017] (3) The method provided by the present invention can successfully realize the electrical connection between the wiring terminal and the circuit according to the matching mode of the plug pin and the plug box, even if the person is not an electrical professional. This reduces the difficulty of electrical wiring. Moreover, a professional electrical professional can identify the functions of the plug pin and the plug box by hand according to the difference between the plug pin and the plug box in the case of dim light, and complete the electrical connection.

[0018] (4) The method provided by the present invention is highly practical, can overturn the traditional production process of electrical components, and has a positive role in promoting the manufacture of electrical components, and is suitable for wide promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments with reference to the following drawings:

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of a specific example of the present invention;

[0021] Figure 2 is a three-dimensional schematic diagram of a pin in a specific example of the present invention;

[0022] Figure 3 Schematic diagram of cross-sections of six types of pins in a specific example of the present invention.

[0023] Among them: 1—plug box, 2—first pin, 3—second pin, 4—third pin, 5—fourth pin, 6—fifth pin, 7—sixth pin. DETAILED DESCRIPTION

[0024] In order to make the purpose, process conditions and advantages of the present invention more clearly understood, the present invention is further described in detail in conjunction with the following embodiments, but the embodiments of the present invention are not limited thereto. Without departing from the above-mentioned technical ideas of the present invention, various substitutions and changes are made according to the common technical knowledge and customary means in the field, which should all be included in the scope of the present invention. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] Embodiment 1:

[0026] This embodiment provides a method for preventing a wiring terminal from being connected incorrectly, comprising the following steps:

[0027] (1) Providing plug pins and plug boxes with matching shapes, the plug pins and plug boxes are connected to different cables respectively, and the electrical connection between the two is achieved by inserting the plug pin into the plug box;

[0028] (2) A boss is provided on the surface of the pin according to the shape of the pin, and the position of each pin boss is different. A groove matching the corresponding pin is provided inside the plug box. Only matching pins and plug boxes can achieve the engagement of the boss and the groove. Unmatched pins cannot be inserted into the plug box because the boss and the groove do not match, thereby achieving the matching of specific pins and plug boxes.

[0029] Embodiment 2:

[0030] Based on the above embodiment, this embodiment further defines the structure of the plug pin and the plug box, and the plug pin and the plug box that can be universally plugged in have the same boss structure and groove structure. The rest of this embodiment is the same as the above embodiment and will not be repeated here.

[0031] Embodiment 3:

[0032] Based on the above embodiment, this embodiment further defines the structure of the plug pin and the plug box, and the plug pin can be marked with different numbers of bosses, and the plug box can be marked with different numbers of grooves. The rest of this embodiment is the same as the above embodiment, and will not be repeated here.

[0033] The outline 4:

[0034] Based on the above embodiment, this embodiment further defines the structure of the plug pin and the plug box, and the plug pin and the plug box are both rectangular in shape. The other parts of this embodiment are the same as the above embodiment, and will not be repeated here.

[0035] Embodiment 5:

[0036] Based on the above embodiment, this embodiment further defines the structure of the plug pin and the plug box, and the plug pin and the plug box are both transparent structures. The other parts of this embodiment are the same as the above embodiment, and will not be repeated here. The other parts of this embodiment are the same as the above embodiment, and will not be repeated here.

[0037] Embodiment 6:

[0038] Based on the above embodiment, this embodiment further defines the structure of the plug pin and the plug box, and the plug box can be provided with a plurality of sockets, each socket is matched with an independent plug pin by providing grooves at different positions. The other parts of this embodiment are the same as the above embodiment, and will not be repeated here.

[0039] Embodiment 7:

[0040] Based on the above embodiment, this embodiment further defines the structure of the plug pin and the plug box, and the plug box has several sockets, and the sockets can be marked with letters or colors to indicate the functions of different sockets. The rest of this embodiment is the same as the above embodiment and will not be described here.

[0041] Embodiment 8:

[0042] Based on the method provided in the above embodiment, this embodiment provides a plug box and a plug pin for an oil level sensor, such as Figures 1 to 3 shown.

[0043] There are six different mechanical ports on the plug box 1, namely A, B, C, D, E, and F ports. Each sensor uses three mechanical ports for excitation signal, return signal, and shielded ground signal. Since the mechanical structure of each port on the plug box is different, the interfaces of the three different signals have error-proof functions. At the same time, different interface arrangements and combinations are set for multiple sensors in the same tank unit, such as ADE and ADF, so as to achieve the error-proof function of the electrical interfaces of different sensors. The A, B, C, D, E, and F ports on the junction box are all matched with the first pin 2, the second pin 3, the third pin 4, the fourth pin 5, the fifth pin 6, and the sixth pin 7, which correspond to each other.

[0044] Figure 1 The main structure of the plug box 1 and the pins is shown in the figure. There are six ports A, B, C, D, E, and F on the junction box. Each port corresponds to a different pin box. For specific differences, see Figure 3 ,The structural differences of the six pin boxes are achieved by changing the distance L of the bosses. The error-proofing interface on the junction box is similar to the pin box, except that the bosses are changed into grooves;

[0045] Each sensor has three electrical interfaces, namely, the excitation signal, the return signal and the shield ground signal. There are only three interfaces with metal wiring pieces inside the junction box of each sensor, such as ADE. Port A is the excitation signal, port D is the return signal, and port E is the shield ground signal. Because the mechanical structures of ports A, B, C, D, E, and F are different, when the same sensor is electrically connected, the pin boxes corresponding to A, D, and E will not be installed incorrectly.

[0046] When there are multiple oil level sensors in the same fuel tank unit, for example, there are four sensors, namely sensor 1, sensor 2, sensor 3 and sensor 4, the electrical interface of the four sensors is arranged and combined, the electrical interface of sensor 1 is ADE, the electrical interface of sensor 2 is ADF, the electrical interface of sensor 3 is BDE, and the electrical interface of sensor 4 is BDF. Through this different port arrangement and combination, the error prevention function can be realized.

[0047] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A method for preventing a terminal from being connected incorrectly, characterized in that: The following steps are involved: (1) Providing plug pins and plug boxes with matching shapes, the plug pins and plug boxes are connected to different cables respectively, and the electrical connection between the two is achieved by inserting the plug pin into the plug box; (2) A boss is provided on the surface of the pin according to the shape of the pin, and the position of each pin boss is different. A groove matching the corresponding pin is provided inside the plug box. Only matching pins and plug boxes can achieve the engagement of the boss and the groove. Unmatched pins cannot be inserted into the plug box because the boss and the groove do not match, thereby achieving the matching of specific pins and plug boxes.

2. A method for preventing wrong connection of a terminal block according to claim 1, characterized in that: The plug pin and plug box capable of universal mixed insertion have a boss structure and a groove structure that are the same.

3. A method for preventing wrong connection of a wiring terminal according to claim 1 or 2, characterized in that: The functions of the plug pins can be marked by arranging different numbers of bosses on the plug pins, and the functions of the plug box can be marked by arranging different numbers of grooves on the plug box.

4. A method for preventing wrong connection of a wiring terminal according to claim 1 or 2, characterized in that: The plug pin and the plug box are both rectangular in shape.

5. A method for preventing wrong connection of a wiring terminal according to claim 1 or 2, characterized in that: The plug pin and the plug box are both transparent structures.

6. A method for preventing wrong connection of a wiring terminal according to claim 1 or 2, characterized in that: The plug box can be provided with a plurality of sockets, and each socket is matched with an independent pin by providing grooves at different positions.

7. A method for preventing wrong connection of a wiring terminal according to claim 1 or 2, characterized in that: The plug box has a plurality of sockets, and the sockets can be marked with letters or colors to indicate the functions of different sockets.

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