Car fuse box

Abstract

To provide an in-vehicle fuse box that prevents the electrical junction box from becoming excessively large. [Solution] The in-vehicle fuse box comprises a plurality of fuse units, a plate-shaped housing, and a lid. Each of the plurality of fuse units comprises a fuse with terminals, a first wire, and a second wire. The housing comprises a first surface, a first wall surface, a second wall surface, a recess formed in the first surface, a first groove extending from the recess toward the first wall surface, and a second groove extending from the recess toward the second wall surface. The lid comprises a lid body that covers the first surface. The fuse with terminals is fitted into the recess, the first wire is positioned in the first groove and pulled out from the first wall surface, and the second wire is positioned in the second groove and pulled out from the second wall surface.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to an in-vehicle fuse box.

BACKGROUND ART

[0002] Patent Document 1 discloses an electrical connection box mounted on a vehicle. The electrical connection box accommodates electrical components such as relays, diodes, and fuses. By integrating these electrical components inside the electrical connection box, maintenance of the electrical system of the vehicle is facilitated.

PRIOR ART DOCUMENTS

PATENT DOCUMENTS

[0003]

PATENT DOCUMENT 1

SUMMARY OF THE INVENTION

PROBLEMS TO BE SOLVED BY THE INVENTION

[0004] In recent years, vehicles have become increasingly electrified, and the number of electrical components such as relays and fuses mounted on a single vehicle tends to increase. As the number of electrical components increases, the electrical connection box becomes larger, making it difficult to install the electrical connection box at a desired position on the vehicle.

[0005] The present inventor studied preventing the electrical connection box from increasing in size by adopting an in-vehicle fuse box that integrates fuses among a plurality of electrical components, so as to reduce the number of electrical components accommodated in the electrical connection box. At that time, the present inventor studied the configuration of an in-vehicle fuse box that allows fuses to be easily replaced.

[0006] One of the objects of the present disclosure is to provide an in-vehicle fuse box that can prevent the electrical connection box from increasing in size.

MEANS FOR SOLVING THE PROBLEMS

[0007] The in-vehicle fuse box of the present disclosure comprises a plurality of fuse units, a plate-shaped housing, and a lid. Each of the plurality of fuse units comprises a fuse with terminals, a first wire electrically connected to a first terminal of the fuse with terminals, and a second wire electrically connected to a second terminal of the fuse with terminals. The housing comprises a first surface, a first wall surface connected to the first surface, a second wall surface connected to the first surface, a recess formed in the first surface, a first groove extending from the recess toward the first wall surface and opening into the first wall surface, and a second groove extending from the recess toward the second wall surface and opening into the second wall surface. The lid comprises a lid body covering the first surface. The fuse with terminals is fitted into the recess, the first wire is arranged in the first groove and led out from the first wall surface, and the second wire is arranged in the second groove and led out from the second wall surface. [Effects of the Invention]

[0008] The in-vehicle fuse box described herein can prevent the electrical connection box from becoming larger. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a schematic perspective view of an in-vehicle fuse box according to Embodiment 1. [Figure 2] Figure 2 is a partially exploded perspective view of the in-vehicle fuse box shown in Figure 1. [Figure 3] Figure 3 is a schematic top view of the housing provided in the vehicle-mounted fuse box according to Embodiment 1. [Figure 4] Figure 4 is a partially exploded front view of the in-vehicle fuse box shown in Figure 2. [Figure 5] Figure 5 is a partially exploded side view of the in-vehicle fuse box shown in Figure 2. [Figure 6] Figure 6 is a schematic diagram of a fuse unit equipped with a terminal fuse that has a different configuration from the terminal fuse shown in Figure 2. [Figure 7]Figure 7 is a schematic top view of the housing provided in the vehicle-mounted fuse box according to Embodiment 2. [Figure 8] Figure 8 is a partial perspective view of the housing according to Embodiment 2. [Modes for carrying out the invention]

[0010] [Description of Embodiments in this Disclosure] First, the embodiments of this disclosure will be listed and described.

[0011] <1> An in-vehicle fuse box according to this embodiment comprises a plurality of fuse units, a plate-shaped housing, and a lid. Each of the plurality of fuse units comprises a fuse with terminals, a first wire electrically connected to a first terminal of the fuse with terminals, and a second wire electrically connected to a second terminal of the fuse with terminals. The housing comprises a first surface, a first wall surface connected to the first surface, a second wall surface connected to the first surface, a recess formed in the first surface, a first groove extending from the recess toward the first wall surface and opening into the first wall surface, and a second groove extending from the recess toward the second wall surface and opening into the second wall surface. The lid comprises a lid body that covers the first surface. The fuse with terminals is fitted into the recess, the first wire is arranged in the first groove and pulled out from the first wall surface to the outside, and the second wire is arranged in the second groove and pulled out from the second wall surface to the outside.

[0012] A vehicle-mounted fuse box that consolidates multiple fuses in a vehicle prevents the need for a large electrical connection box containing relays and other components. This vehicle-mounted fuse box is compact and can be installed in limited spaces. For example, it can be placed in locations such as the vehicle's locker.

[0013] According to the configuration of the above <1>, the fuse with terminals is fixed to the housing by being fitted into the recess, so that the fuse with terminals can be easily replaced. In addition, since the housing is closed by the lid, the fuse with terminals fitted in the recess is prevented from coming off the recess.

[0014] <2> In the in-vehicle fuse box described in the above <1>, the housing may further include a first gripping portion that grips the first electric wire in the vicinity of the first wall surface in the first groove portion, and a second gripping portion that grips the second electric wire in the vicinity of the second wall surface in the second groove portion.

[0015] The first gripping portion and the second gripping portion support the electric wire at the portion where the electric wire is drawn out from the housing so as not to move. As a result, rattling of the fuse with terminals in the housing can be effectively prevented.

[0016] <3> In the in-vehicle fuse box described in the above <2>, the first gripping portion and the second gripping portion may be rubber layers covering the inner peripheral surfaces of the first groove portion and the second groove portion, respectively.

[0017] The rubber layer can grip the electric wire without applying an excessive load to the electric wire.

[0018] <4> In the in-vehicle fuse box according to any one of the above <1> to <3>, the second wall surface may be arranged on the opposite side of the first wall surface.

[0019] When viewed from the fuse with terminals, the first electric wire and the second electric wire extend in directions opposite to each other. In the configuration of the above <4> in which the second wall surface is arranged on the opposite side of the first wall surface, the first groove portion extending from the recess toward the first wall surface and the second groove portion extending from the recess toward the second wall surface extend in directions opposite to each other when viewed from the recess. Therefore, by fitting the fuse with terminals into the recess, the electric wires are naturally likely to be arranged along the groove portions, so that the fuse unit can be easily arranged in the housing. In addition, the electric wires are less likely to be bent when the fuse unit is arranged in the housing.

[0020] <5> In the in-vehicle fuse box according to the above <4>, when a direction extending from the first wall surface toward the second wall surface along the first surface is defined as a first direction, and a direction orthogonal to the first direction along the first surface is defined as a second direction, the plurality of recessed portions may include a first recessed portion and a second recessed portion adjacent to each other in the second direction. In this configuration, the first recessed portion and the second recessed portion are arranged at positions offset in the first direction, and a part of the first recessed portion and a part of the second recessed portion overlap in the second direction.

[0021] According to the arrangement of the recessed portions specified in the above <5>, the number of recessed portions formed on the first surface can be increased without enlarging the area of the first surface. Therefore, a large number of fuses with terminals can be arranged in a small area.

[0022] <6> In the in-vehicle fuse box according to any one of the above <1> to <5>, the housing may include a connecting surface that connects the first wall surface and the second wall surface, and the lid may include a cover portion that is connected to the lid main body and covers the outside of the connecting surface. In this configuration, the connecting surface and the cover portion are provided with an engagement mechanism that engages each other.

[0023] According to the configuration of the above <6>, the cover portion of the lid is engaged with the connecting surface of the housing by the engagement mechanism, so that the lid is less likely to come off from the housing. Since the cover portion overlaps the connecting surface different from the first wall surface from which the first electric wire is drawn out and the second wall surface from which the second electric wire is drawn out, the cover portion is less likely to interfere with the first electric wire and the second electric wire when the lid is attached to the housing.

[0024] <7> In the in-vehicle fuse box according to any one of the above <1> to <6>, the plurality of first groove portions may be integrated into one in the vicinity of the first wall surface.

[0025] If multiple first grooves are consolidated into one near the first wall surface, the first wires placed in each first groove can be pulled out of the housing all at once. Furthermore, in a configuration where multiple first wires are pulled out of the housing all at once, the number of first gripping parts can be reduced if the vehicle-mounted fuse box is equipped with first gripping parts.

[0026] <8> the above <7> In the vehicle-mounted fuse box described above, the multiple second grooves may be consolidated into one near the second wall surface.

[0027] If multiple second grooves are consolidated into one near the second wall surface, the second wires placed in each second groove can be pulled out of the housing all at once. Furthermore, in a configuration where multiple second wires are pulled out of the housing all at once, the number of second gripping parts can be reduced if the vehicle-mounted fuse box has a second gripping part.

[0028] <9> the above <1> from <8> In the vehicle fuse box described in any of the above, the number of housings may be multiple. In this configuration, the multiple housings are connected in a stacked state, and the lid is attached to the housing located on the top row.

[0029] With a configuration that stacks multiple housings, even if the area where the vehicle's fuse box is installed is small, many fuse units can be arranged in a concentrated manner.

[0030] [Details of the embodiments of this disclosure] Hereinafter, embodiments of the automotive fuse box of this disclosure will be described with reference to the drawings. The same reference numerals in the drawings indicate the same parts. However, the present invention is not limited to the configurations shown in the embodiments, but is intended to be limited to those shown in the claims, and all modifications within the meaning and scope of the claims are intended to be included.

[0031] <Embodiment 1> The vehicle-mounted fuse box 1 shown in Figures 1 and 2 comprises multiple fuse units 2, at least one housing 3, and one lid 4. In this example of the vehicle-mounted fuse box 1, only the fuses among the electrical components mounted in the vehicle are consolidated. By consolidating the fuses, the number of fuses in the electrical junction box (not shown) can be reduced or eliminated, thus preventing the electrical junction box from becoming too large. The various components of the vehicle-mounted fuse box 1 will be described in detail below.

[0032] Fuse Unit As shown in Figure 3, the fuse unit 2 comprises a fuse with terminals 20, a first wire 28, and a second wire 29. The fuse with terminals 20 comprises a fuse 25, a first terminal 21 electrically connected to the fuse 25, and a second terminal 22 electrically connected to the fuse 25.

[0033] The fuse 20 with terminals in this example has the configuration described in, for example, Japanese Patent Publication No. 7561318. Specifically, the fuse 25 in this example comprises a resin part that holds the end of the first terminal 21 and the end of the second terminal 22 with a gap between them, and a fusible metal that connects the end of the first terminal 21 and the end of the second terminal 22 inside the resin part. The fusible metal melts when it reaches a certain temperature due to the heat generated when current is passed through it.

[0034] The terminal-equipped fuse 20 may have the configuration shown in Figure 6. The fuse 25 of the terminal-equipped fuse 20 shown in Figure 6 has a configuration in which a fusible wire is arranged inside a glass tube. In the configuration of Figure 6, the first terminal 21 and the second terminal 22 are attached to the terminal portion of the glass tube by crimping.

[0035] The connection state between the terminal-equipped fuse 20 and the first wire 28, and the connection state between the terminal-equipped fuse 20 and the second wire 29, will be explained using the terminal-equipped fuse 20 in Figure 6 as an example. The terminal-equipped fuse 20 shown in Figure 2 is simplified, but the connection state of the terminal-equipped fuse 20 shown in Figure 2 can be considered the same as the connection state of the terminal-equipped fuse 20 shown in Figure 6.

[0036] As shown in Figure 6, the first terminal 21 comprises a wire barrel 21w and an insulation barrel 21i. The second terminal 22 in this example comprises a wire barrel 22w and an insulation barrel 22i.

[0037] A first electric wire 28 is electrically connected to the first terminal 21. The first electric wire 28 comprises a conductor 28c and an insulating sheath 28i covering the outer circumference of the conductor 28c. At the end of the first electric wire 28, the insulating sheath 28i is stripped away, exposing the conductor 28c. The conductor 28c is gripped by the wire barrel 21w of the first terminal 21. The insulating sheath 28i is gripped by the insulation barrel 21i of the first terminal 21.

[0038] A second wire 29 is electrically connected to the second terminal 22. The second wire 29 comprises a conductor 29c and an insulating sheath 29i covering the outer circumference of the conductor 29c. At the end of the second wire 29, the insulating sheath 29i is stripped away, exposing the conductor 29c. The conductor 29c is gripped by the wire barrel 22w of the second terminal 22. The insulating sheath 29i is gripped by the insulation barrel 22i of the second terminal 22.

[0039] Here, the connection between the first terminal 21 and the first wire 28, and the connection between the second terminal 22 and the second wire 29, are not limited to barrel connections. For example, the connections may be made by soldering.

[0040] Housing The housing 3 shown in Figures 1 to 5 is a plate-shaped member that holds the fuse unit 2 described above. The housing 3 is made of an electrically insulating material. In this example, the housing 3 is made of resin. The number of housings 3 provided in the vehicle-mounted fuse box 1 in this example is two. The shape of the multiple housings 3 is the same. Therefore, one mold is sufficient for manufacturing the housings 3. The number of housings 3 may be one or three or more. When the vehicle-mounted fuse box 1 is equipped with multiple housings 3, the multiple housings 3 are connected in a stacked state.

[0041] As shown in Figure 3, the housing 3 in this example comprises a first surface 3A, a second surface 3B (see Figures 4 and 5), a first wall surface 3C, a second wall surface 3D, a third wall surface 3E, and a fourth wall surface 3F. The first surface 3A and the second surface 3B are surfaces with a larger area than the other surfaces. The first surface 3A is the surface facing the lid 4, which will be described later. The second surface 3B is the surface opposite the first surface 3A (see Figures 4 and 5).

[0042] The first wall surface 3C, the second wall surface 3D, the third wall surface 3E, and the fourth wall surface 3F are surfaces that connect the first surface 3A and the second surface 3B. The second wall surface 3D is the surface opposite the first wall surface 3C. The third wall surface 3E and the fourth wall surface 3F are both connecting surfaces that connect the first wall surface 3C and the second wall surface 3D. The fourth wall surface 3F is the surface opposite the third wall surface 3E.

[0043] The outer contour shape of the first surface 3A is rectangular. The shape of the first surface 3A of the housing 3 in this example, when viewed from above, is rectangular. The length between the first wall surface 3C and the second wall surface 3D is longer than the length between the third wall surface 3E and the fourth wall surface 3F. In other words, the housing 3 is an elongated rectangular parallelepiped member in the direction from the first wall surface 3C to the second wall surface 3D. In this specification, the direction from the first wall surface 3C to the second wall surface 3D along the first surface 3A is referred to as the first direction D1. The direction perpendicular to the first direction D1, in this case the direction from the third wall surface 3E to the fourth wall surface 3F, is referred to as the second direction D2.

[0044] Multiple recesses 30 are formed on the first surface 3A. A fuse 25 of a terminal-equipped fuse 20 is fitted into each of the multiple recesses 30. The width of the opening of the recess 30 along the second direction D2 is slightly smaller than the maximum outer diameter of the fuse 25. Therefore, the fuse 25 of the terminal-equipped fuse 20 is fitted into the recess 30 by pushing it open, and will not come out of the recess 30 even if the housing 3 is turned upside down. The terminal-equipped fuse 20 fitted into the recess 30 can be removed by hand or by using a tool such as a flathead screwdriver. Since the terminal-equipped fuse 20 is not fixed to the housing 3 by screws or glued to the housing 3, it is easy to place in the recess 30 and easy to remove from the recess 30.

[0045] Multiple recesses 30 are densely formed in the central part of the first surface 3A in the first direction D1. Of the multiple recesses 30, two recesses 30, 30 adjacent to each other in the second direction D2 are designated as the first recess 30A and the second recess 30B, respectively. The first recess 30A and the second recess 30B are positioned offset in the first direction D1. In addition, a portion of the first recess 30A and a portion of the second recess 30B overlap in the second direction D2. This dense arrangement of multiple recesses 30 allows for a small area of ​​the first surface 3A even with a large number of recesses 30.

[0046] A first groove 31 and a second groove 32 extend from each recess 30. In this example, the first groove 31 and the second groove 32 are straight grooves along the first direction D1. The first groove 31 extends from the recess 30 toward the first wall surface 3C and opens into the first wall surface 3C. A first electric wire 28 extending from the fuse with terminal 20 is placed in this first groove 31. The first electric wire 28 is pulled out from the first wall surface 3C toward the outside of the housing 3. The second groove 32 extends from the recess 30 toward the second wall surface 3D and opens into the second wall surface 3D. A second electric wire 29 extending from the fuse with terminal 20 is placed in this second groove 32. The second electric wire 29 is pulled out from the second wall surface 3D toward the outside of the housing 3.

[0047] The housing 3 in this example further includes a first gripping portion 26 that grips the first electric wire 28 near the first wall surface 3C in the first groove 31, and a second gripping portion 27 that grips the second electric wire 29 near the second wall surface 3D in the second groove 32. Here, the vicinity of the first wall surface 3C is the area from the first wall surface 3C to 10% of the length of the first groove 31, and the vicinity of the second wall surface 3D is the area from the second wall surface 3D to 10% of the length of the second groove 32. The first gripping portion 26 supports the first electric wire 28 so that it does not move in the part of the housing 3 from which the first electric wire 28 is drawn out. The second gripping portion 27 supports the second electric wire 29 so that it does not move in the part of the housing 3 from which the second electric wire 29 is drawn out. As a result, rattling of the fuse with terminals 20 inside the housing 3 is effectively prevented.

[0048] The first gripping portion 26 may be singular or multiple gripping portions may be arranged at intervals along the first groove 31. It is desirable that at least one first gripping portion 26 is arranged flush with the first wall surface 3C. In this case, it is possible to prevent the first electric wire 28 from coming into contact with the opening edge of the first groove 31 on the first wall surface 3C, and it is easier to prevent the first electric wire 28 from being bent and damaged.

[0049] The second gripping portion 27 may be singular or multiple gripping portions may be arranged at intervals along the second groove portion 32. Preferably, at least one second gripping portion 27 is arranged flush with the second wall surface 3D. In this case, it is possible to prevent the second electric wire 29 from coming into contact with the opening edge of the second groove portion 32 on the second wall surface 3D, and it is easier to prevent the second electric wire 29 from being bent and damaged.

[0050] The first gripping portion 26 in this example is a rubber layer covering the inner circumferential surface of the first groove portion 31, as shown in Figure 4. The second gripping portion 27 in this example, shown in Figure 3, is a rubber layer covering the inner circumferential surface of the second groove portion 32. The rubber layer can grip the first wire 28 and the second wire 29 without placing an excessive load on them. The rubber layer may be formed, for example, by attaching a rubber member along the inner circumferential surface, or by applying a rubber material to the inner circumferential surface. The material of the rubber member may be, for example, natural rubber, butadiene rubber, chloroprene rubber, or nitrile rubber.

[0051] As described above, the housing 3 in this example is elongated in the first direction D1 because the first wire 28 and the second wire 29 are arranged to be drawn out along the first direction D1. The arrangement of the multiple recesses 30 in a dense configuration as shown in Figure 3 is also a contributing factor to the elongated shape of the housing 3 in the first direction D1. An on-board fuse box 1 with an elongated housing 3 can be placed in a narrow space in a vehicle. Such an on-board fuse box 1 can be placed in a narrow space inside the vehicle, not limited to the engine compartment or trunk. For example, the on-board fuse box 1 can be placed in the location of the door rocker panel, for example.

[0052] The housing 3 in this example further includes a connecting mechanism 7 for connecting multiple housings 3, as shown in Figures 4 and 5. The connecting mechanism 7 in this example includes a first connecting portion 71 formed on the first surface 3A and a second connecting portion 72 formed on the second surface 3B. The first connecting portion 71 in this example is a connecting hole formed near the third wall surface 3E and near the fourth wall surface 3F on the first surface 3A, as shown in Figure 3 (see also Figure 2). The two connecting holes are independent of each other. The connecting hole is a rectangular recess extending along the first direction D1. There may be one connecting hole or three or more. If there is one connecting hole, and the shape of the connecting hole when the first surface 3A is viewed from above is a non-circular shape such as a polygon, it is possible to prevent the two connected housings 3 from rotating relative to each other.

[0053] The second connecting portion 72 in this example is a protrusion that extends from the second surface 3B, as shown in Figures 4 and 5. The protrusion in this example is a rectangular parallelepiped shape that conforms to the shape of the inner circumferential surface of the connecting hole. When the housing 3 is viewed from above, the second connecting portion 72 is positioned directly behind the first connecting portion 71. Therefore, when the two housings 3 are stacked, the protrusion, which is the second connecting portion 72 of the upper housing 3, fits into the connecting hole, which is the first connecting portion 71 of the lower housing 3, determining the position of the upper housing 3 relative to the lower housing 3, and connecting the upper housing 3 and the lower housing 3. The connection between the multiple housings 3 and the lid 4 may be maintained by a band that fastens the multiple housings 3 and the lid 4 together.

[0054] ≪Lid≫ The lid 4 comprises a lid body 40 that covers the first surface 3A of the housing 3. In this example, the lid body 40 is a flat plate that conforms to the outer contour shape of the first surface 3A. In this example, the lid 4 further comprises a cover portion 41 that covers the third wall surface 3E, which is a connecting surface, and a cover portion 42 that covers the fourth wall surface 3F, which is a connecting surface. The lid 4 is attached only to the uppermost housing 3 and not to the lower housing 3.

[0055] The third wall surface 3E and the cover portion 41 are provided with an engagement mechanism 5 that engages with each other. The fourth wall surface 3F and the cover portion 42 are provided with an engagement mechanism 6 that engages with each other. Since the configurations of engagement mechanisms 5 and 6 are the same, only engagement mechanism 5 will be described here. The engagement mechanism 5 in this example comprises a first engagement portion 51 formed on the third wall surface 3E and a second engagement portion 52 formed on the cover portion 41. The first engagement portion 51 in this example is a claw-shaped projection. The amount of protrusion from the third wall surface 3E increases as you move from the first surface 3A towards the second surface 3B. The second engagement portion 52 in this example is an engagement recess formed on the inner surface of the cover portion 41. The engagement recess in this example is a through hole that penetrates the cover portion 41. With such an engagement mechanism 5, when the lid 4 is attached to the housing 3 from above, the claw-shaped projection constituting the first engagement portion 51 fits into the through hole constituting the second engagement portion 52, and the housing 3 and the lid 4 are firmly engaged. Unlike this example, the second engaging portion 52 of the cover portion 41 may be a projection, and the first engaging portion 51 of the third wall surface 3E may be an engaging recess that engages with the projection.

[0056] The cover 4 does not have a portion that covers the first wall surface 3C and the second wall surface 3D of the housing 3. Therefore, the cover 4 does not obstruct the exit of the first wire 28 from the first wall surface 3C and the exit of the second wire 29 from the second wall surface 3D.

[0057] The lid 4 may further include an additional cover portion that covers the first wall surface 3C and the second wall surface 3D. In that case, the additional cover portion may include notches for arranging the first wire 28 and the second wire 29.

[0058] <Embodiment 2> Embodiment 2 describes an in-vehicle fuse box 1 equipped with a housing 3 in which the shapes of the first groove 31 and the second groove 32 differ from those of Embodiment 1, based on Figures 7 and 8. Although not shown, in this example configuration as well, the lid is attached only to the uppermost housing 3.

[0059] Figure 7 is a plan view of the first surface 3A of the housing 3 of Embodiment 2. In the housing 3 of this example, multiple first grooves 31 are brought together near the first wall surface 3C. In this example, the convergence portion 33 formed by the connection of multiple first grooves 31 is an elongated rectangular recess in the second direction D2. From the edge of the convergence portion 33 on the first wall surface 3C side, an extension portion 35 is formed that extends toward the first wall surface 3C. The first wires 28 of multiple fuse units 2 are brought together in the convergence portion 33 and pulled out collectively from the extension portion 35 to the outside of the housing 3. A first gripping portion 26 is arranged on the pull-out portion 35. Therefore, in the configuration of this example, multiple first wires 28 can be held collectively by a single first gripping portion 26.

[0060] In this example, multiple second grooves 32 are also consolidated into one near the second wall surface 3D. In this example, the converging portion 34 formed by the converging of multiple second grooves 32 is an elongated rectangular recess in the second direction D2. From the edge of the converging portion 34 on the second wall surface 3D side, an extension portion 36 is formed that extends toward the second wall surface 3D. The second wires 29 of multiple fuse units 2 are consolidated into one at the converging portion 34 and are pulled out collectively from the extension portion 36 to the outside of the housing 3. A second gripping portion 27 is positioned on the extension portion 36. Therefore, in this configuration, multiple second wires 29 can be held collectively by a single second gripping portion 27.

[0061] The planar shape of the aggregation sections 33 and 34 is not limited to a rectangle; it may also be a triangle or trapezoid that tapers towards the drawer sections 35 and 36.

[0062] The housing 3 in this example is equipped with a connecting mechanism 8 that is different from the connecting mechanism 7 of Embodiment 1. As shown in Figure 8, the connecting mechanism 8 is composed of a first connecting portion 81 and a second connecting portion 82 formed on the third wall surface 3E, which is the contact surface. The first connecting portion 81 is a roughly C-shaped connecting piece that protrudes from the third wall surface 3E. The connecting piece protrudes outward from the third wall surface 3E and downward from the second surface 3B. The second connecting portion 82 is a connecting hole formed closer to the first surface 3A than the first connecting portion 81. When multiple housings 3 are stacked, the end of the connecting piece, which is the first connecting portion 81 of the upper housing 3, fits into the connecting hole, which is the second connecting portion 82 of the lower housing 3, thereby connecting the upper housing 3 and the lower housing 3. By forming a mounting recess on the mounting surface of the vehicle-mounted fuse box 1 into which the connecting piece of the lowest housing 3 fits, the vehicle-mounted fuse box 1 can be fixed to the mounting surface.

[0063] Since the coupling mechanism 8 in this example is formed on the contact surface of the housing 3, as shown in Figure 7, no space is required on the first surface 3A to arrange the coupling mechanism 8. Therefore, compared to the configuration of Embodiment 1, the length of the housing 3 along the second direction D2 can be shortened, and the number of fuse units 2 that can be mounted can be increased, allowing the vehicle-mounted fuse box 1 to be placed in a narrower space.

[0064] The coupling mechanism 8 may be a coupling mechanism with a so-called snap-fit ​​structure. Alternatively, the coupling mechanism 8 of Embodiment 2 may be applied to the vehicle-mounted fuse box 1 of Embodiment 1, or the coupling mechanism 7 of Embodiment 1 may be applied to the vehicle-mounted fuse box 1 of Embodiment 2. [Explanation of symbols]

[0065] 1. Vehicle-mounted fuse box 2 Fuse Units 20-terminal fuse 21 First terminal, 21i Insulation barrel, 21w Wire barrel 22 Second terminal, 22i Insulation barrel, 22w Wire barrel 25 fuses 26 First gripping part, 27 Second gripping part 28 First wire, 28c Conductor, 28i Insulation 29 Second wire, 29c Conductor, 29i Insulation 3 Housing 3A first page, 3B second page 3C 1st wall, 3D 2nd wall, 3E 3rd wall, 3F 4th wall 30 recesses 30A First recess, 30B Second recess 31 First groove, 32 Second groove 33,34 Aggregation section, 35,36 Drawer section 4 Lid 40 Lid body, 41, 42 Cover part 5,6 Engagement Mechanism 51 First engaging part, 52 Second engaging part 7,8 Connection mechanism 71,81 First connecting part, 72,82 Second connecting part D1 first direction, D2 second direction

Claims

1. It comprises multiple fuse units, a plate-shaped housing, and a lid. Each of the aforementioned plurality of fuse units is A fuse with terminals, A first wire electrically connected to the first terminal of the aforementioned fuse with terminals, The fuse with terminals comprises a second wire electrically connected to the second terminal, The aforementioned housing is The first page, The first wall surface connected to the first surface, The second wall surface connected to the first surface, The recess formed on the first surface, A first groove extends from the recess toward the first wall surface and opens toward the first wall surface, It comprises a second groove that extends from the recess toward the second wall surface and opens toward the second wall surface, The aforementioned lid is The lid body covers the first surface, The fuse with terminals is fitted into the recess, The first electric wire is positioned in the first groove and is pulled out from the first wall surface to the outside. The second electric wire is positioned in the second groove and is pulled out from the second wall surface to the outside. In-car fuse box.

2. The aforementioned housing further, A first gripping portion that grips the first electric wire in the vicinity of the first wall surface in the first groove, The vehicle-mounted fuse box according to claim 1, further comprising a second gripping portion for gripping the second electric wire in the vicinity of the second wall surface in the second groove.

3. The in-vehicle fuse box according to claim 2, wherein the first gripping portion and the second gripping portion are rubber layers covering the inner circumferential surfaces of the first groove and the second groove, respectively.

4. The vehicle-mounted fuse box according to any one of claims 1 to 3, wherein the second wall surface is located on the opposite side of the first wall surface.

5. When the direction from the first wall surface toward the second wall surface along the first surface is defined as the first direction, and the direction perpendicular to the first direction along the first surface is defined as the second direction, The plurality of recesses include a first recess and a second recess adjacent to each other in the second direction, The first recess and the second recess are positioned at locations offset in the first direction. The vehicle-mounted fuse box according to claim 4, wherein a portion of the first recess and a portion of the second recess overlap in the second direction.

6. The housing includes a connecting surface that connects the first wall surface and the second wall surface. The lid is connected to the lid body and includes a cover portion that covers the outside of the contact surface. The vehicle fuse box according to any one of claims 1 to 3, wherein the contact surface and the cover portion are provided with an engagement mechanism for engaging with each other.

7. An in-vehicle fuse box according to any one of claims 1 to 3, wherein a plurality of the first grooves are consolidated into one near the first wall surface.

8. The vehicle-mounted fuse box according to claim 7, wherein multiple second grooves are consolidated into one near the second wall surface.

9. The number of housings is multiple, Multiple of the aforementioned housings are connected in a stacked state. An in-vehicle fuse box according to any one of claims 1 to 3, wherein the lid is attached to the housing positioned at the top.

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