KR20070016806A - Casing Cover Structure of Junction Box For Vehicle - Google Patents

Abstract

The present invention relates to a casing cover structure of the junction box has a built-in circuit board for supplying electricity to the electrical equipment of the car, the upper surface of the fuse 11 or relay to protect the over-current and overload during current supply Junction box casing 10 is coupled to a plurality of terminal grooves (12), and is coupled to the upper portion of the junction box casing 10 to protect the fuse 11 or relay 12 coupled to the upper portion of the junction box In the junction box cover 20, the junction box cover 20 has a fuse 11 or a relay 12 coupled to an upper portion of the junction box casing 10 when coupled to the junction box casing 10. There is no need to protrude a coupling rib for fixing the fuse 11 or the relay 12 in the terminal groove of the junction box casing 10 is provided with a pressurizing means (30) for pressurizing.

Therefore, it is possible to reduce the manufacturing cost required to protrude each of the coupling ribs formed in the terminal groove of the junction box casing (10).

In addition, since the fuse 11 or the relay 12 is coupled only in the terminal groove itself, when the operator separates or couples the fuse 11 or the relay 12, the operator only needs to apply a force that can be combined and detached from the terminal groove. It is also possible to simply disconnect and combine the relay 12 by force.

Therefore, it is a very useful invention that can simultaneously increase economics and convenience of workers.

Description

Casing Cover Structure of Junction Box For Vehicle}

1 is an exploded perspective view showing a conventional junction box

Figure 2 is a cross-sectional view showing the structure of the junction box according to the present name

Figure 3 is an enlarged cross-sectional view showing the main part of the present invention junction box cover structure

4 is an enlarged cross-sectional view illustrating main parts of the A part of FIG.

5 is a bottom view of the present invention junction box cover

* Description of the major symbols in the drawings *

10: junction box casing 11: fuse

12: relay 20: junction box cover

30 pressurizing means 31 first pressing member

32: second pressing member 33: spring member

The present invention relates to a casing cover structure of a junction box, and more particularly, to easily couple or disconnect a fuse or a relay from the junction box, and firmly couple the fuse or the relay in a coupled state to prevent electrical malfunction of the vehicle. It is invented to be.

In general, the electric device of the car can be likened to the nervous system, and the car can exhibit the original excellent performance only when the electric device is normally operated.

The electric device of a vehicle can be divided into the electric device of the engine related to the operation of the engine and the body electric equipment installed in each part of the body other than the engine.

The engine's electric system includes the starting device for starting the engine, the ignition device consisting of an ignition coil, a distributor high voltage cable, a spark plug, a charging device consisting of a generator and a regulator, and these devices are closely related to the engine's performance.

Automotive electronics include storage batteries that supply power when the engine is started, lighting devices for lighting, marking, and signaling, instrument warning indicators installed on instrument panels, and heating / heating devices. These devices are designed to improve driving and habitability.

Today's electric parts are expanding the range of electric devices due to the development of general electric devices, the expansion of the use of the car itself, and the improvement of safety, habitability, convenience, etc., as well as transistors and integrated circuits (ICs). Electronic devices using semiconductor components are employed.

In other words, if you want to connect various terminals in the printed circuit board with various circuits, that is, input and output terminals, to the outside, install a terminal on the printed circuit board, and then connect the lead wire to the terminal to connect with other external devices. To transmit a signal.

The electric device of such a vehicle uses a connector called a connector to electrically connect or disconnect circuits or devices.

In other words, if you want to connect various terminals in the printed circuit board with various circuits, that is, input and output terminals, to the outside, install a terminal on the printed circuit board, and then connect the lead wire to the terminal to connect with other external devices. To transmit a signal.

Thus, wiring is made through the junction box to supply electricity to various electric appliances and motor driving devices of the vehicle, and the junction box is provided with a fuse or a relay as a protection device against overcurrent and overload.

In addition, the conventional junction box processes a wiring connected to a fuse or a relay terminal in a harness with a printed circuit board, and the wiring of the printed circuit board is electrically connected to the harness through a connector.

On the other hand, the junction box has a built-in circuit board for supplying electricity to the electrical equipment of the car as shown in Figure 1, the upper surface of the fuse 11 or to protect the over-current and overload during current supply A junction box casing 10 having a plurality of terminal grooves to which the relay 12 is coupled;

It is composed of a junction box cover 20 coupled to the upper portion of the junction box casing 10 to protect the fuse 11 or the relay 12.

In addition, the fuse 11 or the relay 12 protrudes in the terminal groove of the junction box casing 10 so that the fuse 11 or the fuse 11 may be caused by vibration or shock generated from the vehicle while driving. The relay 12 is prevented from escaping from the terminal groove.

However, in the conventional junction box, a coupling rib protrudes into the terminal groove of the junction box casing to firmly couple the fuse and the relay. However, when the fuse or the relay fixed by the coupling rib is coupled or separated, the operator takes a large force. There was a dissolution.

In other words, the fuse and relay can be combined and separated into the terminal groove only when the operator applies a force greater than the fixing force of the coupling rib to fix the fuse and the relay firmly. There was a problem that gives inconvenience.

In addition, the manufacturing cost for forming a coupling rib in the terminal groove formed on the upper portion of the junction box casing is increased, there is a problem of increasing the weight of the junction box itself.

The present invention provides a casing cover structure of a junction box that can couple and separate a fuse and a relay coupled to the junction box casing with a small force, and reduce the manufacturing cost of the junction box and reduce the weight.

An object of the present invention is a circuit board for supplying electricity to the electrical equipment of the vehicle is built in, the upper surface of the fuse 11 or relay 12 for protecting the over-current and overload during current supply terminal groove A junction box casing 10 coupled to the plurality;

In the junction box cover 20 which is coupled to the upper portion of the junction box casing 10 to protect the fuse 11 or the relay 12 coupled to the upper portion of the junction box,

Inside the junction box cover 20 is provided with a pressing means 30 for pressing the fuse 11 or the relay 12 coupled to the upper portion of the junction box casing 10 when coupled to the junction box casing 10. Is achieved.

That is, when the junction box cover 20 is coupled to the junction box casing 10, the pressurizing means 30 of the junction box cover 20 is protruded fuse 11 or relay coupled to the upper portion of the junction box casing 10. Press 12 to pressurize and the fuse 11 or relay 12 remains firmly coupled so as not to fall out of the terminal groove.

When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention.

2 is a cross-sectional view showing the structure of a junction box according to the present invention, in which a fuse or relay protruding from the upper portion of the junction box casing is pressed and fixed by a pressing means.

Figure 3 is an enlarged cross-sectional view showing the main part of the junction box cover of the present invention, it is shown that the pressing means protruding on the bottom of the upper plate of the junction box cover.

4 is an enlarged cross-sectional view showing an enlarged portion of part A of FIG. 3, wherein the second pressing member is coupled to the first pressing member while being elastically supported by the spring member and inserted into the first pressing member; It shows drawing out.

Figure 5 is a bottom view of the junction box cover of the present invention shows that a plurality of pressing means is formed on the bottom of the upper plate of the junction box casing consisting of first and second pressing members extending from one side to the other side.

Hereinafter, as shown in FIG. 2, the fuse 11 or the relay 12 is coupled to the upper portion of the junction box casing 10 of the junction box of the vehicle as a protection device against overcurrent and overload, and protrudes to a predetermined height.

Although not shown, the junction box casing 10 includes an electric circuit board for supplying electricity to various electronic devices and motor driving devices of the automobile, and an element part, a connector, a program logic part, and the like, which are built in the related art. Note that it is the same as.

The greatest feature of the present invention is to press the fuse 11 or the relay 12 protruding to the upper portion of the junction box casing 10 in the junction box cover 20 coupled to the upper portion of the junction box casing 10. It is provided with a pressing means 30 for fixing.

As shown in FIG. 3, the pressing means 30 protrudes from the bottom surface of the upper plate 21 of the junction box cover 20 and has a spring seating portion 31a formed therein and an opening portion 31b formed at its end. A first pressing member 31;

The second pressing member 32 has a length that is movably coupled into the spring seating portion 31a through the opening 31b of the first pressing member 31 and protrudes below the first pressing member 31. Wow;

It is composed of a spring member 33 embedded in the spring seating portion (31a) of the first pressing member 31 to elastically support the second pressing member (32).

That is, as shown in FIG. 4, when the second pressing member 32 is pressurized, the second pressing member 32 moves to be inserted into the spring seating portion 31a of the first pressing member 31, and the elastic force of the spring member 33 is moved. Pressurized body is continuously pressed in the inserted state.

When the pressed state is released, the second pressing member 32 moves to be drawn out of the first pressing member 31 by the elastic restoring force of the spring member 33 to return to the original position.

In this operation, when the junction box cover 20 is coupled to the upper portion of the junction box casing 10, the fuse 11 or the relay 12 protruding from the second press member 32 to the upper portion of the junction box casing 10 is provided. The upper part of the will be able to be fixed.

And even if the height of the fuse 11 or the relay 12 is different, the length of the second pressing member 32 protruding to the lower portion of the first pressing member 31 is adjusted by the elastic force of the spring member 33 so that the fuse ( 11) or the relay 12 can be fixed by pressing.

Meanwhile, as shown in FIG. 5, the first and second pressing members 31 and 32 extend from one side to the other side of the bottom surface of the upper plate 21 of the junction box casing 10 so that the fuse 11 or the relay ( It is preferable to form a plurality of intervals corresponding to the installation interval of 12) to press and fix the fuse 11 or the relay 12 protruding to the upper portion of the junction box casing 10 in a row.

According to the configuration of the present invention described above, the junction box cover is provided with a pressurizing means for pressurizing and fixing the fuse or relay protruding to the upper portion of the junction box casing protrudes the coupling rib for fixing the fuse or relay to the terminal groove of the junction box casing. It does not need to be provided.

Therefore, it is possible to reduce the manufacturing cost required to protrude each of the coupling ribs in the terminal groove of the junction box casing.

In addition, since fuses or relays are coupled only within the terminal grooves themselves, when the operator separates or fuses the fuses or relays, the operator only needs to apply the force that can be combined and disconnected from the terminal grooves. will be.

Therefore, it is a very useful invention that can simultaneously increase economics and convenience of workers.

Claims (3)

 There is a circuit board for supplying electricity to the electrical equipment of the car inside, and the upper surface of the junction in which a plurality of fuses 11 or relay 12 are coupled to the terminal groove to protect the over-current and overload during current supply A box casing 10;  In the junction box cover 20 which is coupled to the upper portion of the junction box casing 10 to protect the fuse 11 or the relay 12 coupled to the upper portion of the junction box, Inside the junction box cover 20 is provided with a pressing means 30 for pressing the fuse 11 or the relay 12 coupled to the upper portion of the junction box casing 10 when coupled to the junction box casing 10. Casing cover structure of the junction box, which is characterized in that. The method of claim 1, wherein the pressing means 30 is protruded on the bottom surface of the upper plate 21 of the junction box cover 20, the spring seating portion 31a is formed therein and the opening portion 31b is formed at the end A pressing member 31; The second pressing member 32 has a length that is movably coupled into the spring seating portion 31a through the opening 31b of the first pressing member 31 and protrudes below the first pressing member 31. Wow; Casing cover of the junction box, characterized in that consisting of a spring member 33 is built in the spring seating portion (31a) of the first pressing member 31 to elastically support the second pressing member (32). rescue. The first and second pressing members 31 and 32 extend from one side to the other side of the bottom surface of the upper plate 21 of the junction box casing 10 so that the fuse 11 or the relay 12 of the fuse 11 or the relay 12 may be closed. Casing cover structure of the junction box, characterized in that formed in the plurality of intervals to match the installation intervals.

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