Large-current wiring terminal for distribution box

Abstract

The utility model discloses a heavy current wiring terminal used for a distribution box, comprising a terminal male head and a terminal female head, the terminal male head is connected with an embedded nut, the terminal female head is connected with a fuse hook, the embedded nut and the fuse hook are corresponding in size and are embedded and fastened, and the embedded nut is connected with the fuse hook. The embedded nut and the fuse hook are arranged on a circuit board, and the circuit board is a large-pad circuit board; through the optimized and improved design of the product, a nut is wrapped in the plugging sheet, a traditional pin mode is replaced by a connection mode of lining the nut in the insurance clamping hook, and meanwhile, a circuit board adopts a large bonding pad mode which is more beneficial to heat dissipation. Therefore, the phenomenon that the overall service life of the product is affected by internal burning caused by loosening of plugging due to temperature rise of the connector caused by long-term large-current transmission is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wiring terminal, specifically, a large current wiring terminal for distribution box. BACKGROUND

[0002] The distribution box is also called a distribution box, and the distribution box is a kind of equipment widely used in power system;It is used for controlling the output of electric circuit and protecting electrical equipment, and is an important part of electrical system.

[0003] Generally, the traditional distribution box wiring terminal is in the form of a pin. However, when the pin of the traditional distribution box wiring terminal in the form of a pin and the connector are in long-time large-current transmission, the metal surface will gradually heat up due to the limited contact area of the pin and the connector, and cannot be cooled down quickly, which needs to be consumed slowly. Heat is accumulated in a limited space, which will cause the pin and the connector to be loose or fail over time, and further cause the vehicle to be unable to start normally. UTILITY MODEL CONTENTS

[0004] In view of the above technical problems in the related art, the utility model provides a large current wiring terminal for distribution box, which can overcome the above shortcomings of the prior art.

[0005] To achieve the above technical purpose, the technical scheme of the utility model is as follows:

[0006] A large current wiring terminal for distribution box;

[0007] The large current wiring terminal for distribution box comprises a terminal male head and a terminal female head, the terminal male head is connected with an embedded nut, the terminal female head is connected with a fuse hook, the embedded nut and the fuse hook are correspondingly sized and nested and fastened, the embedded nut and the fuse hook are arranged on a circuit board, and the circuit board is a large pad circuit board.

[0008] Further, the embedded nut comprises an integrally formed stud and a hexagonal screw end.

[0009] Further, the fuse hook comprises five side-pasted tooth pieces and one screw tooth piece, and a spacing cavity is arranged between adjacent side-pasted tooth pieces.

[0010] Further, the fuse hook end portion is provided with an end portion through hole.

[0011] Further, a pair of left and right opposite side blocking tooth pieces are integrally formed on both sides of the screw tooth piece.

[0012] Further, the two sides of the screwing tooth piece are integrally formed with a pair of left and right opposite side blocking tooth pieces.

[0013] Further, the end face of the fuse hook and the five side tooth pieces are formed with a round corner chamfer.

[0014] The utility model discloses beneficial effect: through the optimization improvement design of the utility model product, so that the plug -in piece inside is wrapped a nut, through the nut connection form of inside lining of insurance card hook replaces traditional pin form, and circuit board adopts more beneficial to the heat dissipation big pad form, further reach the phenomenon of avoiding the phenomenon of the product overall service life that the plug -in piece temperature rise caused by long -term high current transmission causes plug -in loose to cause internal burning. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.

[0016] Figure 1 It is a structure schematic view of a large current terminal for a distribution box according to the embodiment of the utility model;

[0017] Figure 2 It is a schematic view for circuit board of a large current terminal for a distribution box according to the embodiment of the utility model;

[0018] Figure 3 It is a structure schematic view of a traditional distribution box terminal of pin form according to the utility model;

[0019] In the drawing: 1, circuit board;2, embedded nut;201, stud;202, hexagonal screw end;3, fuse hook;301, side tooth piece;302, interval cavity;303, end through hole;304, screwing tooth piece;305, side blocking tooth piece;4, traditional terminal;5, traditional pin. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled person in the art belong to the scope of the protection of the utility model.

[0021] It should be understood that, in the description of the embodiments of the utility model, the directions or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as limiting the embodiments of the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the utility model, the meaning of "several" is two or more than two, unless otherwise explicitly specified.

[0022] As Figures 1-2 Indicated, a large current wiring terminal for a power distribution box according to an embodiment of the utility model, including terminal male and terminal female, terminal male and embedded nut 2 are connected, the fuse hook 3 is connected with the female terminal, the embedded nut 2 and the size of the fuse hook 3 correspond and are nested and fastened, the embedded nut 2 and the fuse hook 3 are arranged on the circuit board 1, and the circuit board 1 is a large pad circuit board.

[0023] A large current wiring terminal for a power distribution box according to an embodiment of the utility model, in a certain specific embodiment, the embedded nut 2 includes an integrally formed stud 201 and a hexagonal screw end 202.

[0024] A large current wiring terminal for a power distribution box according to an embodiment of the utility model, in a certain specific embodiment, the fuse hook 3 includes five side teeth 301 and a screw tooth 304, and the adjacent side teeth 301 are provided with a spacing cavity 302.

[0025] A large current wiring terminal for a power distribution box according to an embodiment of the utility model, in a certain specific embodiment, the fuse hook 3 is provided with an end through hole 303 at the end.

[0026] A large current wiring terminal for a power distribution box according to an embodiment of the utility model, in a certain specific embodiment, the screw tooth 304 is integrally formed on both sides of a pair of left and right opposite side teeth 305.

[0027] The utility model discloses a big current wiring terminal for distribution box, in a specific embodiment, the side paste tooth piece 301 with the side wall size of hexagonal screw end 202 correspond.

[0028] The utility model discloses a big current wiring terminal for distribution box, in a specific embodiment, the end surface of fuse hook 3 and five side paste tooth piece 301 form between all have round angle chamfer.

[0029] In order to facilitate understanding the above technical scheme of the utility model, the above technical scheme of the utility model is explained in detail below through specific use mode.

[0030] In specific use, according to the utility model discloses a big current wiring terminal for distribution box, including circuit board 1, inlayed nut 2 and fuse hook 3, and the existing big current connector is the plug pin structure, and this fixed mode can make the connector metal piece loose burning due to the heat deformation of high temperature for long-term big current transmission.Therefore, the utility model changes the plug-in form for such problems, adopts fuse hook 3, inlayed nut 2 and the circuit board 1 of the mode of increasing pad area to improve the overall heat dissipation capacity, and inlayed nut 2 makes the contact area and the connecting force of connector increase, and the ability of bearing big current is improved, and the mature thread connection is also adopted to the structure, and the overall durability and reliability of product are improved.

[0031] Summarized above, by means of the above technical scheme of the utility model, through the optimization improvement design of the utility model product, so that the plug-in piece is wrapped with a nut, and the traditional plug pin form is replaced by the connection form of fuse hook lining nut, and the circuit board adopts the large pad form that is more conducive to heat dissipation, to avoid the phenomenon that the plug-in piece is loose due to the temperature rise of long-term big current transmission, and the internal burning affects the overall service life of product.

[0032] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that are made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A high current terminal for a power distribution block, characterized by, The utility model provides a terminal male head and terminal female head, the terminal male head is connected with the embedded nut (2), the terminal female head is connected with the fuse card hook (3), the embedded nut (2) is corresponding with the size of the fuse card hook (3) and is nested and fastened, the embedded nut (2) and the fuse card hook (3) are arranged on the circuit board (1), and the circuit board (1) is a large pad circuit board.

2. A high current terminal for a power distribution block according to claim 1, wherein, The embedded nut (2) comprises an integral screw post (201) and a hexagonal screw end (202).

3. A high current terminal for a power distribution block according to claim 2, wherein, The fuse card hook (3) comprises five side past tooth pieces (301) and a screwing tooth piece (304), and interval cavities (302) are arranged between adjacent side past tooth pieces (301).

4. A high current terminal for a power distribution block according to claim 3, wherein, The fuse card hook (3) is provided with an end through hole (303) at the end.

5. A high current terminal for a power distribution block according to claim 3, wherein, The two sides of the screwing tooth piece (304) are integrally provided with a pair of left and right opposite side blocking tooth pieces (305).

6. A high current terminal for a power distribution block according to claim 3, wherein, The side past tooth piece (301) is corresponding with the size of the side wall of the hexagonal screw end (202).

7. A high current terminal for a power distribution block according to claim 3, wherein, The end surface of the fuse card hook (3) and the five side past tooth pieces (301) are all formed with a round corner chamfer.

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