KR102270727B1 - Power distribution box used in vehicle - Google Patents

Abstract

a distribution box body including an upper plate to which electrical components are fastened, and a side plate extending downward from the edge of the upper plate; and a separate module and a detachable part formed on the side plate for attachment and detachment, wherein the distribution box body includes a substrate seating part formed to seat a substrate in a space surrounded by the upper plate and the side plate of the distribution box body; Further comprising, a drain hole is formed through the side plate, and the drain hole is provided in a vehicle electrical distribution box, characterized in that located at a position away from the upper plate than the substrate seated on the substrate seating portion. Therefore, the electric distribution box for a vehicle of the present invention has the advantage of being able to flexibly respond to a variety of vehicle types by allowing a plurality of detachable or detachable separate modules as needed. In addition, it is possible to effectively discharge the moisture that has penetrated into the electric distribution box by using a simple moisture discharging structure.

Description

Power distribution box used in vehicle}

The present invention relates to an electric distribution box for a vehicle, and more particularly, to an electric distribution box for a vehicle that distributes power to various electric devices used in a vehicle.

In general, various parts and driving devices driven by electricity (hereinafter referred to as 'electronic devices') are mounted inside a vehicle, and an electric distribution box for a vehicle is provided to distribute electricity supplied from the battery and supply it to the electrical components. have.

Such an electric distribution box for a vehicle is a kind of distribution box having a distribution function of a wire harness in which various electric components such as fuses and relays are combined between circuits and built in the box, and a printed circuit board (Printed Circuit Board, Printed Circuit Board, PCB) is installed. In addition, a plurality of connectors are mounted for electrical connection with the wire harness.

The electric distribution box is different in the type and form of the installed position and the mounted electric part for each vehicle model. Therefore, in the prior art, the electric distribution box was designed and developed in a separate form for each vehicle model, and even in the case of the same vehicle model, if there are circumstances such as design change, it must be developed separately. it became

In addition, when the vehicle is flooded, moisture remains in the electric distribution box, which causes a malfunction.

An embodiment of the present invention has been devised to solve the above problems, and it is intended to provide an electric distribution box for a vehicle that can be modularized, can be applied to various vehicle types, and can drain smoothly.

In an embodiment of the present invention, in order to solve the above problems, a distribution box body including a top plate to which electrical components are fastened, and a side plate extending downward from the rim of the top plate; and a separate module and a detachable part formed on the side plate for attachment and detachment, wherein the distribution box body includes a substrate seating part formed to seat a substrate in a space surrounded by the upper plate and the side plate of the distribution box body; Further comprising, a drain hole is formed through the side plate, and the drain hole provides an electric distribution box for a vehicle, characterized in that it is located at a position away from the upper plate than the substrate seated on the substrate seating portion.

The distribution box body may further include an upper plate support boss that protrudes from the upper plate toward the substrate seating portion to support the substrate.

The distribution box body further includes a substrate seating rib formed to protrude from the inner surface of the side plate forming the substrate seating part, wherein the substrate seating rib is formed in plurality at intervals on the inner surface of the side plate. .

It is preferable that the substrate seating rib has a guide inclined surface for guiding the substrate to a fixed position when the substrate is mounted.

Further comprising; a lower cover fitted into the side plate of the lower side of the distribution box body and coupled, wherein the lower cover includes a lower plate and a cover side plate extending upwardly from an edge of the lower plate, the outer surface of the cover side plate A cover locking projection is formed to protrude to fit into the drain hole.

The width of the cover locking protrusion is formed to be smaller than the size of the drain hole, so it is effective to drain into the void of the drain hole except for the cover locking projection.

The detachable portion, a detachable rail groove formed in the height direction of the side plate; a detachable rib formed in the height direction on the side plate so as to be fitted into the detachable rail groove; a latch including a fixing part having one end fixed to the side plate, a free end having the other end extending from the fixing part in a height direction of the side plate to form a cantilever, and a locking jaw protruding from the free end; and a fixing jaw formed on the side plate adjacent to the latch to engage with the locking jaw of the latch formed in the separate module, wherein the inclined surface of the locking jaw toward the fixed part is more It is formed to be gently inclined, and the drain hole is positioned on the opposite side of the upper plate of the fixing jaw.

It is effective that the position of the fixing jaw is formed at the same height as the fixing surface in the height direction of the side plate.

The latch may further include an extension portion extending further from the locking jaw toward the free end, and the extension portion may be formed to be inclined so that the thickness becomes thinner toward the free end.

It is preferable to further include an upper surface chamfer formed by chamfering a portion of the upper surface edge of the fixed jaw facing the direction toward the free end.

It is effective to further include a lower surface chamfer formed by chamfering a portion of the lower surface edge of the fixed jaw facing the direction toward the fixed portion.

Preferably, the chamfering amount of the lower surface chamfer is greater than the chamfering amount of the upper surface chamfer.

It is effective to form an upper chamfer by chamfering only a portion of the upper surface edge of the upper edge of the fixed jaw facing the free end and the lower edge of the fixed jaw facing in the direction toward the fixing part.

Preferably, the locking protrusion is formed over the entire width direction of the latch.

A plurality of the latches are formed in the same size and in the same direction, and a plurality of the fixing jaws are formed at the same position in the height direction of the side plate.

The lower cover may further include a lower plate support boss that protrudes from the lower plate toward the substrate seating portion to support the substrate.

It is effective that the lower cover and the distribution box body further include an erroneous assembly preventing structure formed to engage with each other in order to prevent erroneous assembly.

It is effective that the electrical component includes a connector, and a connector coupling part to which the connector is coupled is formed on the upper plate, and an erroneous assembly prevention protrusion is formed in the connector coupling part to prevent erroneous assembly of the connector.

The separate module detachable from the detachable unit is formed as a fuse holder for fixing a fuse.

The separate module detachable from the detachable part includes a fixing part fixed to a vehicle, and the fixing part of the plurality of separate modules is formed differently depending on a position where it is fixed to the vehicle.

The electrical component may include a connector, and a connector coupling part to which the connector is coupled is formed on the top plate, and an extension support part extending from an outer periphery of the connector coupling part to an upper side of the top plate.

It is effective that the connector coupling part is formed in a rectangular shape, and the extended support part is formed only on the outer periphery of the long edge of the connector coupling part.

It is preferable to further include a plurality of support ribs that protrude upward from the connector coupling part and fit into the support grooves formed in the connector.

According to the problem solving means of the present invention as described above, various effects including the following items can be expected. However, the present invention is not established only when exhibiting all of the following effects.

As described above, the electric distribution box for a vehicle of the present invention has the advantage of being able to flexibly respond to a variety of vehicle types by allowing a plurality of detachable or detachable separate modules as needed.

As a result, there is an advantage in that it is possible to reduce the manufacturing cost because the parts can be shared.

And, it is possible to effectively discharge the moisture that has penetrated into the inside of the electric distribution box by using a simple moisture discharge structure.

In addition, the shape of the detachable portion is formed so that detachment is reliable without using a complicated structure.

1 is an exploded perspective view of an electric distribution box for a vehicle according to an embodiment of the present invention;
Figure 2 is a perspective view of the distribution box body of Figure 1;
Figure 3 is an enlarged perspective view of the connector coupling portion of Figure 2;
Fig. 4 is a cross-sectional view taken along line IV-IV of Fig. 3;
5 is a cross-sectional view taken along line VV of FIG. 3 ;
6 is a plan view of FIG. 3
7 is a cross-sectional view taken along line VII-VII of FIG.
8 is a cross-sectional view taken along the cut line VIII-VIII;
9 is a perspective view before a plurality of electric distribution boxes for vehicles of FIG. 1 are coupled to each other;
10 is a cross-sectional view illustrating the relationship between the first fixing jaw and the second latch in the initial state of fastening of FIG. 9;
11 is a cross-sectional view showing a state immediately before fastening of FIG.
12 is a cross-sectional view showing a state after fastening of FIG.
13 is a cross-sectional view illustrating the relationship between the first latch and the second fixing jaw after fastening of FIG. 9;
14 is a perspective view illustrating that the fuse holder is fastened as a separate module;
15 is a perspective view illustrating a state in which various types of fixing parts fixed to a vehicle are combined as separate modules;
16 is a perspective view illustrating various modifications of the fixing unit;
17 is a bottom perspective view of the distribution box body of FIG.
18 is a cross-sectional perspective view taken along the cutting line XVIII-XVIII of the electric distribution box for the vehicle of FIG.
19 is an enlarged perspective view of a portion in which a substrate seating rib of FIG. 17 is formed;
20 is a perspective view of a state in which the substrate is seated in FIG. 19;
Figure 21 is a perspective view of the lower cover of Figure 1;
22 is a cross-sectional view illustrating a shape in which the upper plate support boss and the lower plate support boss support the substrate;
23 is a perspective view showing a state in which the cover locking projection is fitted into the drain hole;
24 is a perspective view showing a modified example of the lower cover;
25 and 26 are partial perspective views illustrating a state in which the lower cover in which the erroneous assembly prevention structure of FIG. 24 is implemented and the distribution box body are combined.
27 is a cross-sectional view showing a modified example of the fixed jaw;

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

1 is an exploded perspective view of an electric distribution box for a vehicle according to an embodiment of the present invention.

As shown in FIG. 1, the electric distribution box for a vehicle according to an embodiment of the present invention includes a top plate 1100 to which electrical components are fastened, and a side plate 1200 extending downward from the edge of the top plate. (1000), a substrate 3100 seated on the substrate seating portion 1010 of the distribution box body 1000, and a lower cover 2000 that is fitted and coupled into the side plate at the lower side of the distribution box body 1000. include

Various components, such as various connectors 3200 and various fuses 3400 for connecting to the vehicle's wiring harness, may be mounted on the electric components according to the needs of the vehicle.

Figure 2 is a perspective view of the distribution box body of Figure 1, Figure 3 is an enlarged perspective view of the connector coupling portion of Figure 2, Figure 4 is a cross-sectional view taken along the line IV-IV of Figure 3, Figure 5 is along the cut line VV of Figure 3 sectional view, FIG. 6 is a plan view of FIG. 3 .

As shown in these drawings, the distribution box body is composed of a top plate 1100 to which various electrical components are fastened, and a side plate 1200, as described above, and as shown in FIG. 17 , the top plate 1100 ) and the substrate seating portion 1010 is formed so that the substrate 3100 is seated in the space surrounded by the side plate 1200 .

A connector coupling part 1120 to which the connector 3200 is coupled is formed on the upper plate 1100 . In addition to the connector 3200 , a coupling portion to which various electrical components such as a fuse 3400 are mounted is also formed.

Misassembly prevention protrusions 1121 and 1122 are formed in the connector coupling unit 1120 to prevent misassembly of the connector. That is, as shown in FIG. 6 , the erroneous assembly prevention protrusions 1121 and 1122 having different sizes or shapes are formed to be asymmetrical at the corners of the connector coupling part 1120 , and the connector 3200 to be inserted also has a shape matching it. This formation allows the connector 3200 to be coupled to the connector coupling part 1120 in the correct direction.

In addition, it further includes an extension support portion 1123 formed to extend from the outer peripheral portion of the connector coupling portion 1120 to the upper side of the upper plate. The extended support part 1123 supports the side of the connector 3200 coupled to the connector coupling part 1120 , and prevents the connector 3200 from shaking to both sides.

Therefore, when the connector coupling part 1120 is formed in a rectangular shape, the extended support part 1123 is preferably formed only on the outer periphery of the long edge of the connector coupling part. When the connector coupling part 1120 in FIG. 3 is formed in a rectangular shape, the flow in the arrow (I) direction is more vulnerable than the flow in the arrow (II) direction because the supporting surface is smaller. The extended support part 1123 supports this weak coupling force, so that the connector can be more stably maintained in a coupled state. In addition, since the extended support part is not formed on the outer periphery of the shorter edge, the connector can be coupled more smoothly.

It further includes a plurality of support ribs 1124 that protrude upward from the connector coupling part 1120 and are formed to fit into the support grooves 3210 formed in the connector 3200 . A plurality of support ribs 1124 may be formed as needed, and support grooves 3210 are formed in the connector 3200 correspondingly. In this way, the support rib 1124 is coupled to the support groove 3210, so that the connector can be more firmly fixed, and not only prevents the connector from being separated, but also has very high seismic resistance to withstand vibration by minimizing play and flow. .

As shown in FIG. 2 , the side plate 1200 includes a separate module and a detachable part 1300 formed for detachment.

The detachable part 1300 is formed in the side plate 1200 in the height direction so that it can be fitted into the detachable rail groove 1310 formed in the height direction of the side plate 1200 and the detachable rail groove 1310. A detachable rib 1320, a fixing part 1331 having one end fixed to the side plate 1200, the other end extending from the fixing part in the height direction of the side plate to a free end 1332 formed in a cantilever shape, and the A latch 1330 including a latching protrusion 1336 protruding from the free end 1332 and the latch 1330 and the side plate 1200 adjacent to the latch 1330 are engaged with the latching protrusion of the latch formed in the separate module. It includes a fixed jaw 1340 formed.

That is, the removable rail groove 1310 , the fixing jaw 1340 and the removable rib 1320 are repeatedly disposed on the side plate 1200 at regular intervals. Preferably, in any one corner surface of the side plate 1200 of the distribution box body 100, starting from the removable rail groove 1310, it is formed so as to end with the removable rib 1320, and the same on the other edge surface. It is preferable to be formed. As a result, it is possible to combine the same distribution box body 1000 that is formed to be symmetrical with the opposite edge surface.

7 is a cross-sectional view taken along line VII-VII of FIG. 2, and FIG. 8 is a cross-sectional view taken along line VIII-VIII of FIG.

As shown in these figures, the inclined surface 1334 of the locking jaw 1336 toward the fixing portion 1331 is formed to be inclined more gently than the fixing surface 1335 toward the free end 1332 . . The position of the fixing jaw 1340 is formed in a height direction of the side plate 1200 and is substantially the same as that of the fixing surface 1335 . That is, the fixing surface 1335 is formed to support the lower surface of the fixing jaw 1340 . In addition, the latch 1330 further includes an extension portion 1337 that further extends in a direction from the locking jaw 1336 toward the free end 1332 , and the extension portion 1337 includes the free end It is inclined so that the thickness becomes thinner as it goes toward the . That is, the extension portion 1337 is formed to be continuously thinner toward the free end 1332 from the point where the stopping protrusion 1336 ends.

The fixed jaw 1340 includes an upper chamfer 1342 formed by chamfering a portion of the upper surface edge of the fixed jaw 1340 facing the free end 1332, and the fixed portion 1331. It includes a lower surface chamfer 1343 formed by chamfering a portion of the lower surface edge of the fixing jaw 1340 to be viewed.

In addition, it is preferable that the chamfering amount of the lower surface chamfer 1343 is greater than the chamfering amount of the upper surface chamfer. That is, the boundary edge 1344 where the lower surface chamfer 1343 and the upper surface chamfer 1342 meet is formed to be inclined upward in the thickness direction of the fixing jaw 1340 .

As described above, since the upper chamfer 1342 and the lower chamfer 1343 are formed, the reliability of the locking operation with the latch in the fastening operation is increased, as will be described later. However, the present invention is not necessarily limited thereto.

That is, as shown in FIG. 27 , the upper edge of the fixed jaw 4340 facing the direction toward the free end 4332 and the lower surface of the fixed jaw 4340 facing the direction toward the fixed portion Among the corners, only a portion of the upper surface edge may be chamfered to form an upper surface chamfer. When formed in this way, there is an advantage that the fixing jaw 4340 and the engaging surface 4335 and the engaging force are further increased.

The locking protrusion 1336 is preferably formed over the entire width direction of the latch 1330 . The width direction refers to a direction transverse to the longitudinal direction from the fixed part of the latch 1330 toward the free end. As described above, since the locking jaw 1336 is formed over the entire width direction, the amount of engagement between the latch 1330 and the fixing jaw 1340 is increased.

In addition, the plurality of latches 1330 are formed in the same size and in the same direction, and the plurality of fixing jaws 1340 are formed at the same position in the height direction of the side plate.

The effect and meaning of each configuration will be described while explaining the operation of the detachable unit 1300 .

9 is a perspective view before the plurality of electric distribution boxes for vehicles of FIG. 1 are coupled to each other.

For convenience of explanation, the distribution box body located on the lower left side in FIG. 8 is referred to as the first distribution box body 1000a, the expression 'first' is added to the detailed configuration, and 'a' is also attached to the reference numerals. Write it down. In addition, the distribution box body located on the right side is referred to as the second distribution box body 1000b, the expression 'second' is added to the detailed configuration, and 'b' is also attached to the reference numerals.

9, the lower end of the second detachable rib (1320b) of the second distribution box body (1000b) is aligned with the upper end of the first detachable rail groove (1310a) of the first distribution box body (1000a) , When the lower end of the second detachable rail groove 1310b is aligned with the upper end of the first detachable rib 1320a, and the second distribution box body 1000b is moved in the direction of the arrow VIII, the first distribution box body (1000a) and the second distribution box body (1000b) are coupled to each other to be fastened.

10 is a cross-sectional view illustrating the relationship between the first fixing jaw 1340a and the second latch 1330b in the initial fastening state of FIG. 9 , FIG. 11 is a cross-sectional view showing the state immediately before fastening of FIG. 10 , and FIG. 12 is FIG. FIG. 13 is a cross-sectional view illustrating the relationship between the first latch 1330a and the second fixing jaw 1340b after the fastening of FIG. 9 .

Initial fastening As shown in FIG. 10 , the second inclined surface 1334b of the second latch 1330b comes into contact with the surface of the first upper chamfer 1342a of the first fixing jaw 1340a. At this time, due to the second inclined surface 1334b and the first upper chamfer 1342a, the second latch 1330b rotates clockwise as shown in FIG. 10 without jamming.

Next, when the second locking jaw 1336b passes the first boundary edge 1344a, the second locking jaw 1336b is no longer supported by the first fixing jaw 1340a, as shown in FIG. 2 The latch 1330b is restored in the counterclockwise direction to complete the fastening. At this time, due to the first lower surface chamfer 1343a, the second latch 1330b does not stay in the state of FIG. 11 , but can be more easily rotated to the state shown in FIG. 12 . For a strong fixing force, it is manufactured in a state where there is almost no gap between the first fixing jaw 1340 and the second fixing surface 1335b in FIG. 12 . In this case, if there is no first lower surface chamfer 1343a, the second locking jaw 1336b is caught by the edge of the first fixing jaw 1340a and stays in the state of FIG. 11, so reliable fastening cannot be expected.

Meanwhile, FIG. 13 shows between the first latch 1330a and the second fixing jaw 1340b positioned adjacent to FIGS. 10 to 11 .

When the first distribution box body 1000a and the second distribution box body 1000b move in the direction and arrow shown in FIG. 13 , the second fixing jaw 1340b moves along the first extension member 1337a. Then, the fastening is completed as shown in FIG.

As such, due to the first extension member 1337a and the second lower surface chamfer 1343, the first free end 1332a is not caught on the lower surface of the second fixing jaw 1340b and can be reliably fastened as shown in FIG. can

12 and 13, when the first distribution box main body 1000a wants to depart upward after the fastening is completed, the first fixing surface 1335a of the first latch 1330a is fixed to the second fixing surface 1335a. It is caught by the lower surface of the jaw 1340b and is prevented from being separated. In addition, when the first distribution box main body 1000a wants to depart downward, the second fixing surface 1335b of the second latch 1330b supports the lower surface of the second fixing jaw 1340b to prevent the separation. can be prevented

In this way, although the latches are formed in the same size and in the same direction, the assembled first distribution box body and the second distribution box body can be firmly fixed in both directions. Moreover, since the locking protrusion 1336 is formed over the entire width direction of the latch 1330, the fixing force in the coupled state can be further increased.

In addition, due to the inclined surface 1334 of the latch and the upper surface chamfer 1342 , the latch can be smoothly fastened when fastening, and due to the lower surface chamfer 1343 , the gap between the fixed jaw 1340 and the fixed surface 1335 is Although the gap is very small, the reliability of fastening can be improved. As a result, after fastening, it is possible to further increase the fixing force.

Meanwhile, in FIGS. 9 to 13, two identical distribution box bodies are combined as an example, but the present invention is not limited thereto. That is, in FIGS. 9 to 12, a combination of the same distribution box body as a separate module is exemplified, but in addition, various units can be combined as a separate module as needed.

Fig. 14 is a perspective view showing that the fuse holder is fastened as a separate module, Fig. 15 is a perspective view showing a state in which various types of fixing parts fixed to a vehicle are combined as separate modules, and Fig. 16 is a perspective view showing various modifications of the fixing part It is a four perspective view.

As shown in FIG. 14 , the separate module detachable from the detachable unit may be formed as a fuse holder 3310 for fixing a fuse 3311 . Since the above-described detachable part 1300 is formed in the fuse holder 3310, it can be freely fastened to the side of the distribution box body at a desired position.

The fuse holder 3310 is a holder for storing a fuse used in a vehicle. As in the embodiment of the present invention, when the fuse holder 3310 is formed in a structure that is freely detachable from the distribution box body, it is possible to select a location according to the vehicle package, thereby allowing design freedom. increases, and there is an advantage that weight and cost can be reduced through common use of parts.

As shown in FIGS. 15 and 16 , the separate module 3300 detachable from the detachable part is implemented as a fixing part 3320 fixed to the vehicle, and the fixing part of the plurality of separate modules is attached to the vehicle. It may be formed differently depending on the fixed position. That is, as shown in Fig. 16(a), the fixing part 3320a is formed in a shape that can be bolted on a plane, or the fixing part 3320b is formed in a cylindrical shape and is inserted into a structure as shown in Fig. 16(b), As shown in FIG. 16( c ), the fixing part 3320c may be formed to be bolted to an inclined surface.

In this way, since the various fixing parts 3320 fixed to the vehicle are removable according to the vehicle, the distribution box body is produced as a common module for various vehicles, and only the fixing parts are produced separately, thereby reducing the cost through common use of parts. It has the advantage of being able to

17 is a bottom perspective view of the distribution box body of FIG. 2, FIG. 18 is a cross-sectional perspective view cut along the cutting line XVIII-XVIII of the electric distribution box for a vehicle of FIG. 1, FIG. , FIG. 20 is a perspective view of a state in which the substrate is seated in FIG. 19 .

The distribution box body 1000 further includes a substrate seating part 1010 formed to seat the substrate 3100 in a space surrounded by the top plate 1100 and the side plate 1200 of the distribution box body. A drain hole 1210 is formed to pass through the side plate 1200 , and the drain hole 1210 is located at a position farther from the upper plate than the substrate 2100 seated on the substrate seating part 1010 . That is, based on FIG. 18 , a drain hole 1210 is formed through a lower portion of the substrate 3100 . As a result, the introduced moisture does not stay in the electrical components such as the substrate 3100, and allows it to be well drained downward.

In addition, the drain hole 1210 is formed to be positioned on the opposite side of the upper plate of the fixing jaw 1340 . That is, as shown in FIG. 2 , the drain hole 1210 is formed through the lower side of the fixed jaw 1340 , so that moisture can be discharged by utilizing the space under the fixed jaw 1340 .

In addition, the distribution box body 1000 protrudes from the top plate 1100 toward the substrate seating part 1010, and includes an upper plate support boss 1110 for supporting the substrate, and the substrate seating part 1010. It further includes a substrate seating rib 1220 formed to protrude from the inner surface of the side plate to be formed.

The upper plate support boss 1110 is formed to protrude from the upper plate 1100 , and serves to simultaneously support the upper surface of the substrate 3100 .

A plurality of substrate seating ribs 1220 are formed at intervals on the inner surface of the side plate 1200 . In addition, the substrate seating rib 1220 is formed with a guide inclined surface 1221 for guiding the substrate to a fixed position when the substrate 3100 is mounted. As shown in FIGS. 19 and 20 , the guide inclined surface 1221 is inclined downward inwardly from the side plate 1200 . The plurality of substrate seating ribs 1220 support the edges of the substrate 3100 at the same time, so that the substrate is not only seated in the correct position, but also prevents the substrate from flowing after being seated. In addition, due to the guide inclined surface 1221, the substrate can be installed more easily.

21 is a perspective view of the lower cover of FIG. 1 , FIG. 22 is a cross-sectional view illustrating a shape in which the upper plate support boss and the lower plate support boss support the substrate, and FIG. 23 is a perspective view showing a state in which the cover locking protrusion is inserted into the drain hole.

The lower cover 2000 includes a lower plate 2100 and a cover side plate 2200 extending upward from the edge of the lower plate 2100, and the lower plate 2100 protrudes from the lower plate 2100 toward the substrate seating portion 1010, and a lower plate support boss 2110 supporting the substrate 3100 .

A cover locking protrusion 2210 is formed to protrude from the outer surface of the cover side plate 2200 to fit into the drain hole 1210 . The width of the cover locking protrusion 2210 is formed to be smaller than the size of the drain hole 1210 , so that drainage into the gap of the drain hole 1210 excluding the cover locking protrusion 2210 is made.

As described above, by using the drain hole 1210 not only for the drainage purpose, but for the purpose of coupling the cover side plate 220 to the distribution box body 1000, there is an advantage that the structure can be more simplified.

24 is a perspective view illustrating a modified example of the lower cover, and FIGS. 25 and 26 are partial perspective views illustrating a state in which the lower cover in which the erroneous assembly prevention structure of FIG. 24 is implemented and the distribution box body are coupled.

As shown in these drawings, the lower cover 2000 and the distribution box body 1000 are implemented with an erroneous assembly prevention structure 1520 formed to engage with each other in order to prevent erroneous assembly. The erroneous assembly prevention structure 1520 is a side plate of the distribution box body 1000 so that the erroneous assembly prevention boss 2220 protruding from the outer circumferential surface of the lower plate 2100 of the lower cover and the erroneous assembly prevention boss 2220 can be fitted. (1200) It is formed with an erroneous assembly prevention groove 1220 formed by concave in the lower inner peripheral surface. The erroneous assembly prevention boss 2220 and the erroneous assembly prevention groove 1220 are each formed in plurality, and are formed asymmetrically, so that the lower cover can be assembled to the distribution box body in a predetermined direction.

In addition, as shown in FIG. 26, the erroneous assembly prevention structure 1520 includes a chamfer 2230 formed on the edge of the lower cover 2000, and a corner filling part formed on the side plate 1200 to engage the chamfer 2230 ( 1240) may be included. Accordingly, the lower cover 2000 can be assembled in the correct direction.

As described above, the electric distribution box for a vehicle of the present invention has the advantage of being able to flexibly respond to a variety of vehicle types by allowing a plurality of detachable or detachable separate modules as needed.

As a result, there is an advantage in that it is possible to reduce the manufacturing cost because the parts can be shared.

In the above, preferred embodiments of the present invention have been exemplarily described, but the scope of the present invention is not limited to such specific embodiments, and can be appropriately changed within the scope described in the claims.

1000: distribution box body 1010: substrate seating part
1100: top plate 1110: top plate support boss
1120: connector coupling portion 1121, 1122: erroneous assembly prevention protrusion
1123: extended support 1124: support rib
1200: side plate 1210: drain hole
1220: substrate seating rib 1221: guide inclined surface
1300: Removable part 1310: Removable rail groove
1320: detachable ribs 1330: latch
1331: fixed portion 1332: free end
1334: inclined surface 1335: fixed surface
1336: jamming jaw 1337: extension
1340: fixed jaw 1342: top chamfer
1343: bottom chamfer 1344: boundary edge
1520: Misassembly prevention structure 2000: lower cover
2100: lower plate 2110: lower plate support boss
2200: cover side plate 2210: cover protrusion
3100: board 3200: connector
3210: support groove 3300: separate module
3310: fuse holder 3320: fixing part
3400: fuse

Claims (23)

a distribution box body 1000 including an upper plate 1100 to which electrical components are fastened, and a side plate 1200 extending downward from the edge of the upper plate; and
a detachable part 1300 formed for detachment with a separate module 3300 on the side plate 1200;
including,
The distribution box body 1000,
a substrate seating part 1010 formed to seat a substrate 3100 in a space surrounded by the top plate 1100 and the side plate 1200 of the distribution box body;
further comprising,
A drain hole 1210 is formed through the side plate 1200,
The drain hole (1210) is an electric distribution box for a vehicle, characterized in that located at a position further away from the upper plate than the substrate (2100) seated on the substrate mounting portion (1010).
The method of claim 1,
The distribution box body 1000,
an upper plate support boss 1110 protruding from the upper plate 1100 toward the substrate seating portion 1010 to support the substrate;
Electric distribution box for a vehicle, characterized in that it further comprises.
The method of claim 1,
The distribution box body 1000,
a substrate seating rib 1220 protruding from an inner surface of the side plate forming the substrate seating portion 1010;
further comprising,
The electric distribution box for a vehicle, characterized in that a plurality of the substrate seating ribs 1220 are formed at intervals on the inner surface of the side plate.
4. The method of claim 3,
The electric distribution box for a vehicle, characterized in that the substrate seating rib (1220) is formed with a guide inclined surface (1221) for guiding the substrate to the proper position when the substrate is mounted.
The method of claim 1,
a lower cover 2000 fitted into the side plate of the lower side of the distribution box body 1000 and coupled thereto;
further comprising,
The lower cover 2000,
It includes a lower plate 2100 and a cover side plate 2200 extending upward from the edge of the lower plate 2100,
The electric distribution box for a vehicle, characterized in that the cover side plate (2200) has a cover locking projection (2210) protruding to fit into the drain hole on the outer surface of the cover side plate (2200).
6. The method of claim 5,
The width of the cover locking protrusion 2210 is formed to be smaller than the size of the drain hole 1210, so that drainage into the void of the drain hole 1210 except for the cover locking projection 2210. Electric vehicle, characterized in that distribution box.
The method of claim 1,
The detachable part 1300 is,
Removable rail groove 1310 formed in the height direction of the side plate 1200;
a detachable rib (1320) formed in the height direction on the side plate (1200) so as to be fitted into the detachable rail groove (1310);
A fixing part 1331 having one end fixed to the side plate 1200 , a free end 1332 extending from the fixing part in the height direction of the side plate 1200 to form a cantilever, and the free end 1332 . ) a latch 1330 including a locking protrusion 1336 formed to protrude;
a fixing jaw (1340) formed on the side plate (1200) adjacent to the latch (1330) so as to engage with the locking jaw of the latch formed in the separate module;
includes,
The inclined surface 1334 toward the fixing portion 1331 of the locking jaw 1336 is formed to be inclined more gently than the fixing surface 1335 toward the free end 1332,
The drain hole is an electric distribution box for a vehicle, characterized in that formed by being positioned on the opposite side of the upper plate of the fixing jaw.
8. The method of claim 7,
The position of the fixing jaw (1340) is in the height direction of the side plate (1200), the electric distribution box for a vehicle, characterized in that formed at the same height as the fixing surface (1335).
8. The method of claim 7,
The latch 1330 is
an extension portion (1337) that further extends in a direction from the locking step (1336) toward the free end (1332);
further comprising,
The extension part 1337 is an electric distribution box for a vehicle, characterized in that it is inclined so that the thickness becomes thinner toward the free end.
8. The method of claim 7,
an upper surface chamfer 1342 formed by chamfering a portion of an upper surface edge of the fixed jaw 1340 facing the free end 1332;
Electric distribution box for a vehicle, characterized in that it further comprises.
8. The method of claim 7,
a lower surface chamfer 1343 formed by chamfering a portion of the lower surface edge of the fixed jaw 1340 facing the fixed portion 1331;
Electric distribution box for a vehicle, characterized in that it further comprises
11. The method of claim 10,
a lower surface chamfer 1343 formed by chamfering a portion of the lower surface edge of the fixed jaw 1340 facing the fixed portion 1331; further comprising,
The electric distribution box for a vehicle, characterized in that the chamfering amount of the lower chamfer (1343) is greater than the chamfering amount of the upper chamfer.
8. The method of claim 7,
Among the upper edge of the fixed jaw 1340 facing the direction toward the free end 1332 and the lower edge of the fixed jaw 1340 facing the direction toward the fixing part 1331, the upper edge of the Electric distribution box for a vehicle, characterized in that only a portion is chamfered to form an upper surface chamfer (1342).
8. The method of claim 7,
The locking jaw 1336 is an electric distribution box for a vehicle, characterized in that formed over the entire width direction of the latch (1330).
8. The method of claim 7,
A plurality of the latches 1330 are formed in the same size and in the same direction,
Electric distribution box for a vehicle, characterized in that the plurality of fixing jaws (1340) are formed at the same position in the height direction of the side plate (1200).
6. The method of claim 5,
The lower cover 2000,
a lower plate support boss 2110 protruding from the lower plate 2100 toward the substrate seating portion 1010 to support the substrate 3100;
Electric distribution box for a vehicle, characterized in that it further comprises.
6. The method of claim 5,
The lower cover 2000 and the distribution box body 1000 may include an erroneous assembly prevention structure 1520 formed to engage with each other to prevent erroneous assembly;
Electric distribution box for a vehicle, characterized in that it further comprises.
The method of claim 1,
The electrical component includes a connector 3200,
A connector coupling part 1120 to which the connector 3200 is coupled is formed on the top plate 1100,
Electric distribution box for a vehicle, characterized in that the connector coupling part (1120) is formed with erroneous assembly prevention protrusions (1121, 1122) for preventing erroneous assembly of the connector.
19. The method according to any one of claims 1 to 18,
The separate module 3300 that is detachable from the detachable part,
Electric distribution box for a vehicle, characterized in that formed with a fuse holder (3310) for fixing the fuse.
19. The method according to any one of claims 1 to 18,
The separate module 3300 that is detachable from the detachable part,
Includes a fixing part 3320 fixed to the vehicle,
The electric distribution box for a vehicle, characterized in that the fixing portion of the plurality of separate modules is formed differently depending on the position fixed to the vehicle.
19. The method according to any one of claims 1 to 18,
The electrical component includes a connector 3200,
A connector coupling part 1120 to which the connector 3200 is coupled is formed on the top plate 1100,
an extension support portion 1123 extending from an outer periphery of the connector coupling portion 1120 to an upper side of the upper plate;
Electric distribution box for a vehicle, characterized in that it further comprises.
22. The method of claim 21,
The connector coupling portion is formed in a rectangular shape,
The extended support part 1123 is an electric distribution box for a vehicle, characterized in that formed only on the outer periphery of the long edge of the connector coupling part.
22. The method of claim 21,
a plurality of support ribs 1124 protruding upward from the connector coupling part 1120 and fitted into the support grooves formed in the connector;
Electric distribution box for a vehicle, characterized in that it further comprises.

Images