KR20210023512A - Power distribution box used in vehicle - Google Patents

Abstract

Provided is a power distribution box for a vehicle, which comprises: a distribution box main body including an upper plate to which an electric component is fastened and a side plate extending from an edge of the upper plate to a lower side; and an attachment/detachment part formed on the side plate to be attached to and detached from a separate module. The attachment/detachment part comprises: an attachment/detachment rail groove formed in a height direction of the side plate; an attachment/detachment rib formed in the height direction of the side plate to be inserted into the attachment/detachment rail groove; a latch including a fixed part having one end fixed to the side plate, a cantilever-shaped free end of which the other end extends in the height direction of the side plate from the fixed part, and an engagement protrusion protruding from the free end; and a fixed protrusion formed on a side surface adjacent to the latch to be engaged with the engagement protrusion of the latch formed on the separate module. An inclined surface facing the fixed part of the engagement protrusion is formed to be gently inclined than a fixed surface facing the free end. Accordingly, the power distribution box for a vehicle according to the present invention has an effect of flexibly responding to various kinds of vehicle since a plurality of modules or a separate module can be attached and detached if necessary. As a result, components can be used commonly, and thus, manufacturing costs can be reduced.

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 electric power to various electric devices used in a vehicle.

In general, various parts and driving devices that are driven by electricity (hereinafter referred to as'electrical equipment') are installed 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 electric equipment. have.

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

Electric distribution boxes are installed in different locations for each vehicle model and different types and shapes of installed electric components. Therefore, conventionally, 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 is a design change, it must be developed separately, which causes cost increase. Became.

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 applicable to various vehicle types by enabling modularization.

An embodiment of the present invention is a distribution box body including a top plate to which electrical components are fastened, and a side plate extending downward from an edge of the top plate in order to solve the above problems; And a detachable unit formed on the side plate for attaching and detaching a separate module, wherein the detachable unit includes: a detachable rail groove formed in a height direction of the side plate; A detachable rib formed in a 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 extending from the fixing part in a height direction of the side plate to form a cantilever shape, and a locking protruding protruding from the free end; And a fixing jaw formed on the side adjacent to the latch to engage the locking jaw of the latch formed in the separate module, wherein an inclined surface of the locking jaw toward the fixing portion is more than a fixing surface facing the free end. It provides an electric distribution box for a vehicle, characterized in that formed so as to be inclined gently.

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

The latch further includes an extension portion extending from the locking protrusion toward the free end, wherein the extension portion is formed to be inclined so as to have a thinner thickness toward the free end.

And an upper chamfer formed by chamfering a portion of an upper surface edge of the fixed jaw facing a direction toward the free end.

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

It is effective that the amount of chamfer of the lower surface chamfer is greater than the amount of chamfer of the upper surface chamfer.

It is preferable that the locking projection is formed over the entire width direction of the latch.

It is effective that a plurality of the latches are formed in the same direction with the same size, and a plurality of the fixing jaws are formed at the same position in the height direction of the side surface.

The distribution box body further includes a substrate mounting portion formed to mount a substrate in a space enclosed by the top plate and the side plate of the distribution box body, and is formed by passing a drain hole through the side plate, and the drain hole It is effective to be located at a position away from the upper plate than the substrate seated on the substrate mounting portion.

Preferably, the distribution box body further includes an upper plate support boss protruding from the upper plate toward the substrate seating portion and supporting the substrate.

The distribution box main body further includes a substrate mounting rib protruding from an inner surface of the side plate forming the substrate mounting portion, and a plurality of the substrate mounting ribs are formed at intervals on the inner surface of the side plate.

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

A lower cover inserted into the side plate of the lower side of the distribution box body and coupled to the lower cover, wherein the lower cover includes a lower plate and a cover side plate extending upward from an edge of the lower plate, and an outer surface of the cover side plate It is effective that the cover locking protrusion protrudes so as to fit into the drain hole.

It is preferable that the width of the cover locking protrusion is formed smaller than the size of the drain hole, so that the drainage is discharged into the air gap of the drain hole excluding the cover locking protrusion.

The lower cover further includes a lower plate support boss protruding from the lower plate toward the substrate seating portion and supporting the substrate.

The lower cover and the distribution box body further include a misassembly preventing structure formed to engage with each other to prevent misassembly.

The electrical component includes a connector, and a connector coupling portion to which the connector is coupled is formed on the upper plate, and an erroneous assembly preventing protrusion is formed on the connector coupling portion to prevent erroneous assembly of the connector.

It is preferable that the separate module, which is attached to and detached from the detachable part, is formed as a fuse holder for fixing a fuse.

It is effective that the separate module attached to and detached from the detachable part includes a fixing part fixed to the vehicle, and the fixing part of the plurality of separate modules is formed differently according to a position fixed to the vehicle.

The electrical component includes a connector, and a connector coupling portion to which the connector is coupled is formed on the upper plate, and an extension support portion extending from an outer circumferential portion of the connector seating groove to an upper side of the upper plate; it is preferable to further include.

It is effective that the connector coupling portion is formed in a rectangular shape, and the extension support portion is formed only on an outer peripheral portion of a long edge of the connector coupling portion.

It further includes a plurality of support ribs protruding upward from the connector coupling portion to be fitted into a support groove formed in the connector.

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

As described above, the electric distribution box for a vehicle of the present invention has the advantage of being able to flexibly respond to various vehicle types by attaching and detaching a plurality of them as necessary or by attaching and detaching separate modules.

As a result, there is an advantage in that the parts can be shared and the manufacturing cost can be reduced.

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

And, by using a simple moisture discharging structure, moisture that has penetrated into the electric distribution box can be effectively discharged.

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
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. 2
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 showing a relationship between a first fixed jaw and a second latch in an initial fastening state of FIG. 9
11 is a cross-sectional view showing a state just before fastening of FIG. 10
12 is a cross-sectional view showing a state after fastening of FIG. 10
13 is a cross-sectional view showing a relationship between a first latch and a second fixed jaw after fastening of FIG. 9
14 is a perspective view showing that a fuse holder is fastened as a separate module
15 is a perspective view showing a state in which various types of fixing parts fixed to the vehicle are combined as separate modules
16 is a perspective view showing various modifications of the fixing unit
17 is a bottom perspective view of the distribution box body of FIG. 2
FIG. 18 is a cross-sectional perspective view of the electric distribution box for a vehicle of FIG. 1 taken along line XVIII-XVIII;
19 is an enlarged perspective view of a portion in which the substrate mounting rib of FIG. 17 is formed
20 is a perspective view of a state in which the substrate is seated in FIG. 19
21 is a perspective view of the lower cover of FIG. 1
22 is a cross-sectional view showing a shape in which the upper support boss and the lower support boss support the substrate.
23 is a perspective view showing a state in which a cover locking protrusion is inserted into a drain hole
24 is a perspective view showing a modified example of the lower cover
25 and 26 are partial perspective views showing a state in which the lower cover and the distribution box body having the structure for preventing mis-assembly of FIG. 24 are combined

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 distribution box body including a top plate 1100 to which an electric component is fastened, and a side plate 1200 extending downward from an edge of the top plate. 1000, a substrate 3100 seated on the substrate seating portion 1010 of the distribution box main body 1000, and a lower cover 2000 inserted into and coupled to the inside of the side plate below the distribution box main body 1000. Includes.

As for the electric component, various components may be mounted according to the needs of the vehicle, such as various connectors 3200 and various fuses 3400 for connecting to the wiring harness 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 line IV-IV of Figure 3, Figure 5 is taken along line VV of Figure 3 A cross-sectional view, FIG. 6 is a plan view of FIG. 3.

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

A connector coupling portion 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 electric components such as a fuse 3400 are mounted is also formed.

Mis-assembly prevention protrusions 1121 and 1122 are formed on the connector coupling part 1120 to prevent mis-assembly of the connector. That is, as shown in FIG. 6, the misassembly prevention protrusions 1121 and 1122 of different sizes or shapes are formed to be asymmetrical to the corners of the connector coupling part 1120, and a shape matching this to the inserted connector 3200. By being formed, the connector 3200 can be coupled to the connector coupling portion 1120 in the correct direction.

In addition, it further includes an extension support portion 1123 extending upward from the outer circumferential portion of the connector coupling portion 1120 to the upper side of the upper plate. The extension support part 1123 supports the side surfaces of the connector 3200 coupled to the connector coupling part 1120 to prevent the connector 3200 from shaking to both sides.

Therefore, when the connector coupling portion 1120 is formed in a rectangular shape, the extension support portion 1123 is preferably formed only on the outer peripheral portion of the long edge of the connector coupling portion. In FIG. 3, when the connector coupling portion 1120 is formed in a rectangular shape, the support surface of the flow in the arrow (I) direction is smaller than the flow in the arrow (II) direction and thus is more fragile. This weak coupling force is supported by the extension support 1123, so that the connector can be more stably maintained in a coupled state. In addition, since the extension support portion is not formed on the outer peripheral portion of the short edge, the connector can be more smoothly coupled.

It further includes a plurality of support ribs 1124 protruding upward of the connector coupling portion 1120 and formed to fit into the support groove 3210 formed in the connector 3200. If necessary, a plurality of support ribs 1124 may be formed, and correspondingly, a support groove 3210 is formed in the connector 3200. In this way, the support rib 1124 is coupled to the support groove 3210, so that the connector can be more firmly fixed, preventing separation of the connector, as well as minimizing clearance and flow, thereby having very high vibration resistance. .

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

The detachable part 1300 is formed in a height direction on the side plate 1200 so as to 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, a free end 1332 formed in a cantilever shape with the other end extending from the fixing part in the height direction of the side plate, and the A latch 1330 including a locking protrusion 1336 formed protruding from the free end 1332, and the latch 1330 formed on the separate module on the side surface 1200 adjacent to the latch 1330 are engaged with the locking protrusions of the latches formed in the separate module. It includes a formed fixed jaw (1340).

That is, the detachable rail groove 1310, the fixed jaw 1340, and the detachable rib 1320 are repeatedly disposed on the side plate 1200 at regular intervals. Preferably, at any one corner surface of the side plate 1200 of the distribution box body 100, if starting from the detachable rail groove 1310, it is formed to end with a detachable rib 1320, and the same at the other corner surface. It is desirable to be formed. As a result, the distribution box body 1000 that is formed to be symmetrical to each other with opposite edge surfaces can be combined with each other.

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.

As shown in these figures, the inclined surface 1334 of the locking projection 1336 facing the fixing part 1331 is formed to be inclined more gently than the fixing surface 1335 facing the free end 1332 . The position of the fixing jaw 1340 is formed in a height direction of the side plate 1200 and substantially the same height as 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 part 1337 further extending in a direction from the locking protrusion 1336 toward the free end 1332, and the extension part 1337 includes the free end It is formed to be inclined so that the thickness becomes thinner as it faces. That is, the extension part 1335 is formed to be continuously thinned toward the free end 1332 from the point where the locking projection 1336 ends.

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

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

It is preferable that the locking protrusion 1336 is 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 portion of the latch 1330 to the free end. In this way, the locking projections 1336 are formed over the entire width direction, thereby increasing the locking amount of the latch 1330 and the fixing projections 1340.

Further, a plurality of the latches 1330 are formed in the same size and in the same direction, and a plurality of the fixing jaws 1340 are formed at the same position in the height direction of the side surface.

While describing the operation of the detachable unit 1300, the effect and meaning of each configuration will be described.

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

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

As shown in Fig. 9, align the lower end of the second detachable rib 1320b of the second distribution box main body 1000b with the upper end of the first detachable rail groove 1310a of the first distribution box main body 1000a, , After aligning the lower end of the second detachable rail groove 1310b to the upper end of the first detachable rib 1320a, and then move the second distribution box main body 1000b in the direction of the arrow VIII, the first distribution box main body The (1000a) and the second distribution box body (1000b) are coupled to each other to be fastened.

FIG. 10 is a cross-sectional view showing 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. 13 is a cross-sectional view showing the relationship between the first latch 1330a and the second fixed 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 fixed jaw 1340a. At this time, due to the second inclined surface 1334b and the first upper surface chamfer 1342a, the second latch 1330b rotates clockwise as shown in FIG. 10 without being caught.

Then, when the second locking jaw (1336b) passes the first boundary edge (1344a), the first fixing jaw (1340a) no longer supports the second locking jaw (1336b), as shown in FIG. 2 The latch 1330b is restored in the counterclockwise direction, and the fastening is completed. At this time, due to the first lower surface chamfer 1343a, the second latch 1330b does not stay in the state of FIG. 11 and can more easily rotate to the state as illustrated in FIG. 12. For a solid 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 the first lower surface chamfer 1343a is not present, the second locking jaw 1336b is caught at the edge of the first fixed jaw 1340a and stays in the state of FIG. 11, so that reliable fastening cannot be expected.

On the other hand, FIG. 13 is a view between the first latch 1330a and the second fixed jaw 1340b positioned adjacent to FIGS. 10 to 11.

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

In this way, 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 fixed jaw 1340b and can be reliably fastened as shown in FIG. I can.

12 and 13, after the fastening is completed, when the first distribution box main body 1000a is to be separated upward, the first fixing surface 1335a of the first latch 1330a is fixed to the second. Departure is prevented by being caught by the lower side of the jaw 1340b. In addition, when the first distribution box main body 1000a is to be separated downward, the second fixing surface 1335b of the second latch 1330b supports the lower side of the second fixing jaw 1340b and is separated from it. 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 main body and the second distribution box main body can be rigidly fixed in both directions. In addition, since the locking projection 1336 is formed over the entire width direction of the latch 1330, it is possible to further increase the fixing force in the coupled state.

In addition, due to the inclined surface 1334 of the latch and the upper chamfer 1342, it is not only smoothly fastened, but also the lower chamfer 1434 between the fixed jaw 1340 and the fixed surface 1335 Even though the gap is very small, the reliability of the fastening can be improved. As a result, after fastening, the fixing force can be further increased.

Meanwhile, in FIGS. 9 to 13, it is illustrated that two identical distribution box bodies are combined, but the present invention is not limited thereto. That is, in FIGS. 9 to 12, the same distribution box body is combined as a separate module as an example, but in addition, various units may be combined as separate modules as necessary.

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

As shown in FIG. 14, the separate module, which is attached to and detached from the detachable part, 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, and when it is formed in a structure that can be freely attached to and detached from the distribution box body, as in the embodiment of the present invention, a position can be selected according to the vehicle package, and thus design freedom It has the advantage of being able to reduce weight and cost through common use of parts.

15 and 16, the separate module 3300, which is attached to and detached 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 as shown in Fig. 16(b), the fixing part 3320b is formed in a cylindrical shape and implemented in a structure that is fitted, As shown in FIG. 16(c), the fixing part 3320c may be formed in a shape that is bolted to the inclined surface.

In this way, since the various fixing parts 3320 fixed to the vehicle can be attached and detached according to the vehicle, the distribution box body is produced as a common module for various vehicles, and only the fixing part is separately produced, thereby reducing the cost through common use of parts. There is an advantage of being able to do it.

FIG. 17 is a bottom perspective view of the distribution box main body of FIG. 2, FIG. 18 is a cross-sectional perspective view taken along a cutting line XVIII-XVIII of the electric distribution box for a vehicle of FIG. 1, and FIG. 19 is an enlarged perspective view of a portion where the substrate mounting ribs of FIG. 17 are formed. , 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 portion 1010 formed to seat the substrate 3100 in a space surrounded by the upper plate 1100 and the side plate 1200 of the distribution box main body. A drain hole 1210 is formed through the side plate 1200, and the drain hole 1210 is located at a position further from the upper plate than the substrate 2100 mounted on the substrate mounting portion 1010. That is, the drain hole 1210 is formed by penetrating through the lower position of the substrate 3100 based on FIG. 18. As a result, the introduced moisture does not stay in the electric parts such as the substrate 3100 and can be well drained to the lower side.

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

A plurality of upper plate support bosses 1110 are formed to protrude from the upper plate 1100 and serve to simultaneously support the upper surface of the substrate 3100.

A plurality of substrate mounting ribs 1220 are formed on the inner side of the side plate 1200 with an interval therebetween. In addition, the substrate mounting rib 1220 has a guide inclined surface 1221 for guiding the substrate to a proper position when the substrate 3100 is mounted. The guide inclined surface 1221 is formed to be inclined downward in the side plate 1200 as shown in FIGS. 19 and 20. A plurality of substrate seating ribs 1220 simultaneously support the edge of the substrate 3100 so that the substrate is seated in a proper position, and flow can be prevented after seating. In addition, due to the guide inclined surface 1221, it is possible to more easily install the substrate.

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

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

A cover locking protrusion 2210 is formed to protrude from an outer surface of the cover side plate 2200 so as to be fitted 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 the cover is drained into the voids of the drain hole 1210 excluding the cover locking protrusion 2210.

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

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

As shown in these drawings, the lower cover 2000 and the distribution box main body 1000 have an erroneous assembly prevention structure 1520 formed to engage with each other 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 as a groove (1220) for preventing misassembly 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 plural, and are formed asymmetrically, so that the lower cover can be assembled to the distribution box body in a certain direction.

In addition, as shown in FIG. 26, the erroneous assembly prevention structure 1520 includes a chamfer 2230 formed at the corner of the lower cover 2000, and a corner filling portion formed on the side plate 1200 so as to engage with the chamfer 2230. 1240). 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 various vehicle types by attaching and detaching a plurality of them as necessary or by attaching and detaching separate modules.

As a result, there is an advantage in that the parts can be shared and the manufacturing cost can be reduced.

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 mounting portion
1100: upper plate 1110: upper support boss
1120: connector coupling portion 1121, 1122: incorrect assembly prevention protrusion
1123: extension support 1124: support rib
1200: side plate 1210: drain hole
1220: board mounting rib 1221: guide slope
1300: detachable part 1310: detachable rail groove
1320: detachable rib 1330: latch
1331: fixed part 1332: free end
1334: inclined surface 1335: fixed surface
1336: locking jaw 1337: extension
1340: fixed jaw 1342: upper surface 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 stopping protrusion
3100: board 3200: connector
3210: support groove 3300: separate module
3310: fuse holder 3320: fixing part
3400: fuse

Claims (22)

A distribution box body 1000 including an upper plate 1100 to which an electric component is fastened, and a side plate 1200 extending downward from an edge of the upper plate; And
A detachable part 1300 formed on the side plate 1200 for attaching and detaching a separate module;
Including,
The detachable part 1300,
A detachable rail groove 1310 formed in the height direction of the side plate 1200;
A detachable rib 1320 formed in a height direction on the side plate 1200 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 formed in a cantilever shape with the other end extending in the height direction of the side plate from the fixing part, and protruding from the free end 1332 A latch 1330 including a locking protrusion 1336 formed by being formed;
A fixing jaw 1340 formed on the side surface 1200 adjacent to the latch 1330 to engage the locking jaw of the latch formed in the separate module;
Including,
Electric distribution box for a vehicle, characterized in that the inclined surface (1334) of the locking projection (1336) facing the fixing portion (1331) is formed to be inclined more gently than the fixing surface (1335) facing the free end (1332).
The method of claim 1,
The electric distribution box for a vehicle, characterized in that the position of the fixing jaw (1340) is formed in a height direction of the side plate (1200) and at the same height as the fixing surface (1335).
The method of claim 1,
The latch 1330,
An extension part (1337) further extending in a direction from the locking projection (1336) toward the free end (1332);
It further includes,
The extension part (1337), the electrical distribution box, characterized in that formed inclined so that the thickness becomes thinner toward the free end.
The method of claim 1,
An upper chamfer 1342 formed by chamfering a portion of an upper surface edge of the fixed jaw 1340 facing a direction toward the free end 1332;
Electric distribution box for a vehicle, characterized in that it further comprises.
The method of claim 1,
A bottom chamfer 1343 formed by chamfering a part of a bottom edge of the fixing jaw 1340 facing the direction toward the fixing part 1331;
Electric distribution box for a vehicle, characterized in that it further comprises
The method of claim 4,
A bottom chamfer 1343 formed by chamfering a part of a bottom edge of the fixing jaw 1340 facing the direction toward the fixing part 1331;
It further includes,
Electric distribution box for a vehicle, characterized in that the chamfer amount of the lower surface chamfer (1343) is larger than the chamfer amount of the upper surface chamfer.
The method of claim 1,
The locking projection (1336) is a vehicle electrical distribution box, characterized in that formed over the entire width direction of the latch (1330).
The method of claim 1,
A plurality of the latches 1330 are formed in the same direction with the same size,
Electric distribution box for a vehicle, characterized in that a plurality of the fixed jaws (1340) are formed at the same position in the height direction of the side.
The method according to any one of claims 1 to 8,
The distribution box body 1000,
A substrate seating portion 1010 formed to seat a substrate 3100 in a space surrounded by the upper plate 1100 and the side plate 1200 of the distribution box body;
It further includes,
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 away from the upper plate than the substrate (2100) mounted on the substrate mounting portion (1010).
The method of claim 9,
The distribution box body 1000,
An upper plate support boss 1110 protruding from the upper plate 1100 toward the substrate mounting portion 1010 to support the substrate;
Electric distribution box for a vehicle, characterized in that it further comprises.
The method of claim 9,
The distribution box body 1000,
A substrate mounting rib 1220 protruding from an inner surface of the side plate forming the substrate mounting portion 1010;
Including more,
The electric distribution box for a vehicle, characterized in that a plurality of the substrate mounting ribs 1220 are formed at intervals on the inner side of the side plate.
The method of claim 11,
The substrate mounting rib 1220 is an electric distribution box for a vehicle, characterized in that a guide slope (1221) for guiding the substrate to a proper position when the substrate is mounted.
The method of claim 9,
A lower cover 2000 inserted into and coupled to the inside of the side plate at the lower side of the distribution box main body 1000;
Including more,
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,
An electric distribution box for a vehicle, characterized in that a cover locking protrusion 2210 protrudes on an outer surface of the cover side plate 2200 so as to fit into the drain hole.
The method of claim 13,
The width of the cover stopping protrusion 2210 is formed smaller than the size of the drain hole 1210, and drainage is discharged into the voids of the drain hole 1210 excluding the cover stopping protrusion 2210. Distribution box.
The method of claim 13,
The lower cover 2000,
A lower plate support boss 2110 protruding from the lower plate 2100 toward the substrate mounting portion 1010 and supporting the substrate 3100;
Electric distribution box for a vehicle, characterized in that it further comprises.
The method of claim 13,
The lower cover 2000 and the distribution box main body 1000 may include an erroneous assembly preventing 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,
A connector coupling portion 1120 to which the connector 3200 is coupled is formed on the upper plate 1100,
An electric distribution box for a vehicle, characterized in that the connector coupling portion (1120) is provided with erroneous assembly preventing protrusions (1121, 1122) for preventing erroneous assembly of the connector.
The method according to any one of claims 1 to 8,
The separate module 3300, which is attached to and detached from the detachable part,
Electric distribution box for a vehicle, characterized in that formed as a fuse holder (3310) for fixing the fuse.
The method according to any one of claims 1 to 8,
The separate module 3300, which is attached to and detached from the detachable part,
It includes a fixing part 3320 fixed to the vehicle,
The electric distribution box for a vehicle, wherein the fixing portion of the plurality of separate modules is formed differently according to a position fixed to the vehicle.
The method according to any one of claims 1 to 8,
The electrical component includes a connector,
A connector coupling portion 1120 to which the connector 3200 is coupled is formed on the upper plate 1100,
An extension support part 1123 extending from an outer circumferential part of the connector coupling part 1120 to an upper side of the upper plate;
Electric distribution box for a vehicle, characterized in that it further comprises.
The method of claim 20,
The connector coupling portion is formed in a rectangular shape,
The extension support (1123) is a vehicle electrical distribution box, characterized in that formed only on the outer peripheral portion of the long edge of the connector coupling portion.
The method of claim 20,
A plurality of support ribs (1124) protruding upward from the connector coupling portion (1120) and formed to fit into a support groove formed in the connector;
Electric distribution box for a vehicle, characterized in that it further comprises.

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