KR200431337Y1 - Junction box for vehicle - Google Patents

Abstract

The present invention relates to a junction box for a vehicle, comprising: a connector to which various wires are connected in the vehicle; A main body having a circuit board on which a plurality of electronic components are mounted, and a terminal to which the connector is connected at one side thereof; A lower cover having a seating space in which the connector and the main body are seated; One end is rotatably coupled to the main body, the engaging position for supporting the connection state by fixing the main body to the lower cover with the connector connected to the terminal therebetween, the main body and the connector It includes; lever-type engaging member to rotate between the release position to release from the lower cover.

As a result, when the main body connected to the connector is coupled to the lower cover, it is only necessary to rotate the lever after positioning the locking projection to the locking portion, thereby simplifying the assembly and disassembly process and shortening the working time, thereby improving productivity.

Description

Junction box for vehicle {JUNCTION BOX FOR VEHICLE}

1 is an exploded perspective view showing a coupling structure of a conventional junction box for a vehicle,

2 is an exploded perspective view of a junction box for a vehicle according to the present invention;

3A is a cross-sectional view showing the positional relationship between the lever and the locking projection in the release position;

3b is a cross-sectional view showing the positional relationship between the lever and the locking projection in the engaged position;

Figure 4 is a perspective view of the combination perspective and anti-rotation of the junction box for a vehicle according to the present invention.

* Explanation of symbols for main parts of drawings *

1: Vehicle junction box 10: Connector

11: terminal 20: main body

21: rotating shaft receiving groove 30: lower cover

31: seating space 32: obstacle

33: opening 34: wire through

35: splash shield 36: seating portion

37: fastening unit 38: insertion groove

40: upper cover 41: insertion projection

50: lever-type coupling member 51: lever

52: rotation shaft 53: locking portion

54: handle portion 55: locking projection guide

60: anti-rotation unit 61: anti-rotation protrusion

63: protrusion receiving part (A): joining position

(B): Release position

The present invention relates to a junction box for a vehicle, and more particularly, to a junction box for a vehicle having improved assembly and productivity by improving a coupling structure of a main body, a connector, and a lower cover included in the junction box.

The junction box for a vehicle is a device for transmitting power and control signals to various electric devices mounted inside the vehicle.

To this end, the junction box for a vehicle is electrically connected to the main body 120 and the main body 120 mounted with a circuit board on which various fuses, relays, and electronic components are mounted, as shown in FIG. And a lower cover 130 provided with a connector 110 provided at the front end of the wire extending from the device, and a seating space for accommodating the main body 120 and the connector 110 therein.

By the above-described structure, the vehicle junction box controls each electric device by transmitting various control signals and data generated from the circuit board of the main body 120 to each electric device through the connected connector 110 and wires. .

However, when assembling such a junction box for a vehicle, the main body 120 and the lower cover 130 are fastened such as bolts 140 to maintain the connection state of the main body 120 and the connector 110. Screw fastening was used.

That is, after the fastening holes are formed to correspond to each other on the main body 120 and the lower cover 130, respectively, the connector 110 connected to the wire is connected to the main body 120 first, and then the connector 110 is connected again. The main body 120 was coupled to the lower cover 130 using a plurality of bolts 140.

Therefore, before assembling the junction box for the vehicle, the pre-process for drilling the bolt fastening hole must be performed first, and after the assembly, the post-process for fastening a plurality of bolts must be performed. There was a problem that the assembly failure rate and work time increases.

In particular, in the case of increasing the number of bolts 140 fastened to secure the connection state between the main body 120 and the connector 110, the parts cost increases, and the working time increases, thereby decreasing productivity. There was a problem.

In addition, even when disassembling the junction box to repair the broken product, there is a problem that the assembly and disassembly work is complicated, such as a separate tool for releasing the bolt 140 must be provided.

In addition, when the main body 120 and the lower cover 130 is fastened by the bolt 140, the bolt 140 is released by the continuous vibration according to the vehicle running to connect the main body 120 and the connector 110. There was a problem that the state could not be maintained and product reliability was lowered.

Accordingly, an object of the present invention is to provide a junction box for a vehicle that can easily couple the main body to the lower cover without using a separate fastening part and a fastening tool, and at the same time maintain the connection state between the main body and the connector. There is.

The above object is, according to the present invention, the connector is connected to the various wires in the vehicle; A main body having a circuit board on which a plurality of electronic components are mounted, and a terminal to which the connector is connected at one side thereof; A lower cover having a seating space in which the connector and the main body are seated; One end is rotatably coupled to the main body, the engaging position for supporting the connection state by fixing the main body to the lower cover with the connector connected to the terminal therebetween, the main body and the connector It is achieved by a junction box for a vehicle, including; lever-type coupling member to rotate between the release position to release from the lower cover.

Preferably, the lever-type coupling member, the lever having a rotating shaft, a hook-shaped locking portion formed on one end of the rotating shaft, a handle portion formed on the other end of the rotating shaft, and the lever is provided on the lower cover When positioned in the engaging position, it may include a locking projection that is held by the locking portion.

Preferably, the lever is provided in a substantially 'c' shape, the engaging portions are formed at both ends, and the locking projections may be provided at positions corresponding to the locking portions, respectively.

Preferably, the locking projection may further include a locking projection guide portion which is bent in a direction opposite to the bending direction to guide the locking projection to the locking portion.

Preferably, the lever and the engaging projection may be provided in plurality.

Preferably, the lever-type coupling member may further include a rotation preventing portion for preventing the rotation in the engaging position.

Here, the anti-rotation part may include a anti-rotation protrusion provided on one side of the lever-type coupling member, and a protrusion accommodating portion provided on the lower cover to accommodate the anti-rotation protrusion when the lever-type coupling member is positioned at a coupling position. have.

Here, it may further include an upper cover coupled to the lower cover to form an appearance.

Hereinafter, with reference to the accompanying drawings for the present invention will be described in detail.

2, the junction box 1 for a vehicle according to the present invention includes a connector 10 to which various wires (not shown) inside the vehicle are connected; A main body 20 having a circuit board on which a plurality of electronic components are mounted, and having a terminal (not shown) to which a connector 10 is connected at one side thereof; A lower cover 30 having a seating space 31 in which the connector 10 and the main body 20 are seated; One end is rotatably coupled to the main body 20, the coupling position for supporting the connection state by fixing the main body 20 to the lower cover 30 with the connector 10 connected to the terminal in between (a And a lever-type coupling member 50 that rotates between the main body 20 and the release position (B) for releasing the connector 10 from the lower cover 30.

Here, the lever-type coupling member 50 may further include a rotation preventing portion 60 to prevent the rotation in the coupling position (a).

In addition, it may further include an upper cover 40 coupled to the lower cover 30 to form an appearance.

Hereinafter, the configuration will be described in detail.

2 is an exploded perspective view of the junction box 1 for a vehicle according to the present invention.

Referring to the drawing, a seating space 31 is formed in the lower cover 30 to which the connector 10 and the main body 20 are seated.

The lower cover 30 is not limited, but is provided in a substantially rectangular parallelepiped shape, and an opening 33 is formed at an upper portion thereof so that the connector 10 and the main body 20 can be inserted into the seating space 31.

On the outer circumferential surface of the lower cover 30, a coupling portion such as a splash shield 35 for stably mounted on a vehicle body, for example, an engine room, to which the lower cover 30 is to be mounted is formed.

On one side of the lower cover 30 is formed a wire through part 34 through which a wire (not shown) extending from various electric devices inside the vehicle passes.

On the other hand, the upper cover 40 is provided on the upper portion of the lower cover 30 is coupled to the opening 33 side to form an overall appearance.

Here, a fastening unit 37 as shown in FIG. 2 is provided to firmly maintain the coupling state of the lower cover 30 and the upper cover 40.

The fastening unit 37 may be provided in various kinds, for example, the insertion protrusion 41 provided on one side of the upper cover 40 and the lower cover 30 corresponding to the insertion protrusion 41. It may be provided as an insertion groove 38 is accommodated in the insertion protrusion 41.

On the other hand, the lower cover 30 includes one or more locking projections (32) held by the locking portion 53 of the lever-type coupling member (50).

The locking protrusion 32 may be provided in various shapes. For example, as illustrated in FIG. 2, the locking protrusion 32 may be provided as a cylindrical protrusion protruding at a predetermined length from one side of the inner wall of the lower cover 30 toward the plate surface direction. Can be.

The locking protrusion 32 is provided in various numbers corresponding to the position and the number of the locking portion 53.

In addition, the lower cover 30 includes a protrusion accommodating portion 63 for firmly maintaining the state in which the lever 51 is in the engaged position (a).

For example, as shown in FIG. 2, the protrusion accommodating part 63 extends upward from the inner wall edge of the lower cover 30 so that the anti-rotation protrusion 61 of the lever 51 is engaged with the engaging position (a). It may be provided to force the insertion.

The connector 10 is provided at the tip of the wire and is seated in the seating space 31 of the lower cover 30.

To this end, the lower cover 30 may be provided with a mounting portion 36 having a shape corresponding to the connector 10 therein. The seating part 36 prevents the connector 10 from flowing in the lower cover 30 when the vibration occurs due to the driving of the vehicle, thereby maintaining the connection state with the main body 20 firmly.

Meanwhile, a plurality of terminals 11 electrically connected to terminals of the main body 20 are provided at an upper portion of the connector 10 coupled to the main body 20.

The main body 20 has a circuit board on which a plurality of electronic components are mounted, and a terminal (not shown) to which the connector 10 is connected is provided at one side.

Various fuses, relays, and electronic components are mounted on the circuit board, and transmit various power and control signals to various electric devices in the vehicle through the connected connector 10.

One end of the lever-type coupling member 50 is rotatably coupled to the main body 20, and the main body 20 is fixed to the lower cover 30 with the connector 10 connected to the terminal interposed therebetween. It is provided to rotate between the engaging position (a) for supporting the connection state and the release position (b) for releasing the main body 20 and the connector 10 from the lower cover 30.

The lever-type coupling member 50 may be provided in various ways. For example, as shown in FIG. 2, the lever 51 and the lower cover 30 are provided to be rotatable in the main body 20. It may include a locking projection (32) to be held on the lever 51.

The lever 51 includes, for example, the rotation shaft 52, the hook-shaped locking portion 53 formed at one end of the rotation shaft 52, and the handle portion 54 formed at the other end of the rotation shaft 52. Can have

The rotating shaft 52 is inserted into the rotating shaft receiving groove 21 provided in the main body 20 so as to be rotatable.

The locking portion 53 is provided in a hook shape at one end of the rotation shaft 52 to accommodate and release the locking protrusion 32 provided on the lower cover 30 when the lever 51 rotates along the rotation shaft 52. Prepared.

The locking portion 53 may be provided in various shapes, but as shown in FIG. 2, it is preferable to have a predetermined curvature.

In this case, the locking protrusion 32 is guided to the locking portion 53 as the lever 51 rotates, so that the locking protrusion 32 is locked when the main body 20 and the lower cover 30 are coupled or released. 53) can be prevented from occurring assembling defects.

In addition, when the lever 51 rotates and the locking protrusion 32 is inserted toward the closed end of the locking portion 53, the distance between the lower cover 30 and the main body 20 is gradually increased by the locking protrusion 32. As it narrows, the main body 20 and the lower cover 30 can be firmly combined.

Meanwhile, as illustrated in FIG. 3A, one side of the locking portion 53 is bent in a direction opposite to the bending direction of the locking portion 53 to guide the locking protrusion 32 to the locking portion 53. 55 may be provided.

The locking protrusion guide part 55 allows the locking protrusion 32 to be accurately seated on the locking part 53 when the locking protrusion 32 approaches the locking part 53. To this end, the locking projection guide 55 is provided with a greater curvature than the locking projection 32.

That is, when the main body 20 approaches the lower cover 30, the locking projection 32 is first seated between the locking portion 53 and the locking projection guide 55, and then the lever 51 is shown in Figure 3a. By rotating in the direction of ① of the locking projection 32 is moved to the closed end of the locking projection guide (55).

In this state, when the lever 51 is rotated again in the direction of ②, the locking protrusion 32 is accurately held by the locking portion 53.

Therefore, when the main body 20 and the lower cover 30 are coupled to each other, the locking protrusion 32 may be positioned between the locking portion 53 and the locking projection guide 55 to rotate the lever 51 twice. Just by simply combining the main body 20 and the lower cover 30.

The handle portion 54 is provided at the other end of the rotation shaft 52 so that the operator can easily rotate the lever 51.

The lever 51 may be provided in various numbers as necessary. For example, one may be provided, two may be provided, or three or more may be provided.

In the case of providing a plurality of levers 51, the fastening force between the main body 20 and the lower cover 30 increases, so that the main body 20 and the connector 10 may be more firmly fixed to the lower cover 30. Can be.

However, as the number of levers 51 increases, the number of processes of the operator increases, so that the working time increases, and thus productivity may decrease. Therefore, it is preferable that the lever 51 is provided in 2-4 pieces.

The lever 51 may be provided in various shapes. For example, it may be provided in a bar shape, or as shown in Figure 2, the handle portion 54 may be provided in a substantially 'C' shape connected to one.

When the lever 51 is provided in a 'c' shape, the two levers 51 can be fastened in a single operation, thereby reducing the number of working steps, thereby reducing work time and improving productivity.

The anti-rotation part 60 is provided to prevent the lever-type coupling member 50 from being rotated at the engagement position (a).

The anti-rotation part 60 may be provided in various ways. For example, as shown in FIG. 4, the anti-rotation protrusion 61 provided on one side of the lever 51 and the lower cover 30 are provided on the lever. When the type coupling member 50 is located at the coupling position (a), it may include a protrusion accommodating part 63 in which the anti-rotation protrusion 61 is accommodated.

The anti-rotation protrusion 61 may be provided with, for example, a protrusion having a side surface having a substantially triangular shape inclined downward toward the protrusion accommodating portion 63.

Thus, when the lever 51 is rotated to the engaging position (a), the projection receiving portion 63 is carried over the upper surface of the anti-rotation projection 61 is to be retained. Therefore, since the rotation of the lever 51 is limited in the release position (b) direction, the combined state of the main body 20 and the lower cover 30 is more firmly maintained.

On the other hand, in order to rotate the lever 51 to the release position (b), as shown in Figure 4, by opening the projection receiving portion 63 in the plate direction, the anti-rotation projection 61 is released from the projection receiving portion 63 To be possible.

Hereinafter, the assembly and disassembly process of the vehicle junction box 1 according to the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 2, first, a connector 10 is provided at a tip of a wire extending from various electric devices inside a vehicle.

The upper surface of the connector 10 coupled to the main body 20 is provided with a plurality of terminals 11 connected to a terminal (not shown) of the main body 20.

The connector 10 is seated in the seating space 31 inside the lower cover 30 while being connected to the wire, and at this time, the wire connected to the connector 10 is provided on one side of the lower cover 30. 34 is connected to the seating space (31).

Next, the main body 20 is coupled to the upper portion of the connector 10 so that the terminal of the connector 10 and the terminal of the main body 20 are electrically connected.

3A and 3B, the coupling relationship of the lever-type coupling member 50 will be described in detail. First, the main body 20 is approached toward the lower cover 30 so that the locking portion 53 at the end of the lever 51 is closed. And a locking protrusion 32 between the locking protrusion guide unit 55 (an engaged state).

Next, the lever 51 is rotated in the ① direction so that the locking protrusion 32 is guided along the locking protrusion guide 55. When the locking projection 32 is located at the closed end of the locking projection guide 55, the lever 51 is rotated in the direction of ② so that the locking projection 32 is guided by the locking portion 53.

3B illustrates a state in which the lever-type coupling member 50 is positioned at the coupling position (a), and the locking protrusion 32 is located at the closed end of the locking portion 53.

Therefore, in the junction box for a vehicle according to the present invention, when the main body 20 connected to the connector 10 is coupled to the lower cover 30, the locking protrusion 32 is positioned on the locking portion 53, and then the lever ( 51) can be assembled and disassembled in one step of rotation, which simplifies the process and shortens the working time, thereby improving assembly.

In addition, since a separate fastening tool or fastening parts are not required for the junction box assembly, the management and manufacturing cost of the fastening parts can be reduced.

On the other hand, the lever 51 is moved to the coupling position (a) is further provided with a rotation preventing portion 60 for supporting the state in which the main body 20 is coupled to the lower cover (30).

The anti-rotation part 60 is provided on the anti-rotation protrusion 61 protruding on one side of the lever 51 and the lower cover 30, and the anti-rotation protrusion 60 is provided when the lever 51 is located at the engagement position (a). And a projection accommodation portion 63 in which 61 is accommodated.

Therefore, as shown in FIG. 4, when the lever 51 is located at the engagement position (a), the lever (unless the anti-rotation protrusion 61 is released by moving the projection accommodation portion 63 in the plate direction) ( Since 51 is not rotated to the release position (b), the coupling state of the main body 20 and the connector 10 can be more firmly maintained.

In the junction box for a vehicle according to the present invention, when the main body connected to the connector is coupled to the lower cover, the engaging protrusion needs only to be positioned after the lever is rotated, so that the assembly and disassembly processes are simplified and the working time is shortened. Productivity is improved.

In addition, since a separate fastening tool or fastening parts are not required for the junction box assembly, the management and manufacturing cost of the fastening parts can be reduced.

In addition, the junction box for a vehicle according to the present invention provides an anti-rotation part, so that the lever does not rotate to the release position unless the anti-rotation protrusion is released by moving the projection receiving portion in the plate direction when the lever is located at the engaged position. The body and the connector can be more tightly coupled.

Claims (8)

A connector to which various wires in the vehicle are connected; A main body having a circuit board on which a plurality of electronic components are mounted, and a terminal to which the connector is connected at one side thereof; A lower cover having a seating space in which the connector and the main body are seated; One end is rotatably coupled to the main body, the engaging position for supporting the connection state by fixing the main body to the lower cover with the connector connected to the terminal therebetween, the main body and the connector And a lever-type coupling member that rotates between release positions to be released from the lower cover. The method of claim 1, The lever-type coupling member, A lever having a rotating shaft, a hook-shaped locking portion formed at one end of the rotating shaft, a handle portion formed at the other end of the rotating shaft, The junction box for a vehicle, characterized in that provided in the lower cover and the lever is located in the engaging position, the engaging projection is held by the engaging portion. The method of claim 2, The lever is provided in an approximately 'c' shape, the engaging portions are formed at both ends, and the engaging projection is a vehicle junction box, characterized in that each provided in a position corresponding to the engaging portion. The method of claim 3, The junction box for a vehicle further comprising a locking projection guide portion which is bent in a direction opposite to the bending direction of the locking portion to guide the locking projection to the locking portion. The method according to claim 2, wherein The lever and the engaging projection is a junction box for a vehicle, characterized in that provided in plurality. The method of claim 1, And a rotation preventing portion preventing the lever-type coupling member from being rotated at the coupling position. The method of claim 6, The anti-rotation part, A junction box provided on one side of the lever-type coupling member and a junction box for a vehicle provided in the lower cover, wherein the lever-type coupling member includes a projection accommodation portion to accommodate the rotation prevention projection when the coupling position is located. . The method of claim 1, The junction box for a vehicle, further comprising: an upper cover coupled to the lower cover to form an exterior.

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