JP2010003492A - Fuse box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fuse box capable of substantially reducing installation space, and, as a result, capable of realizing miniaturization. <P>SOLUTION: The fuse box is equipped with a hollow cylindrical body 3, and the body 3 is supported at both ends in a longitudinal direction of the body 3 such that it can freely turn around an axis passing through its hollow portion. Fuse holes 311 allowing insertion and drawing of fuses 5 are plurally formed on an outer circumference face of the body 3, and each fuse hole 311 is provided with a pair of terminal metal fittings 34 contacting and making electrical connection to a pair of metal terminals 51A of the fuse 5 when the fuse 5 is inserted into the fuse hole 311, and an end of an electric wire arranged in the hollow portion of the body 3 is electrically connected to the pair of terminal metal fittings 34. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fuse box such as a fuse box, and more particularly, to a fuse box that stores a plurality of fuses mounted on various vehicles such as an automobile, a camper, a small leisure boat, a small aircraft, and a motorcycle. .

  Conventionally, as a fuse box capable of storing a plurality of fuses such as a blade type, there has been one disclosed in Patent Document 1. That is, as shown in FIG. 10, a predetermined fuse housing hole 101 corresponding to the shape of each blade-type fuse 200 is formed on the surface of the fuse box 100. The fuse housing holes 101 are installed in a depth direction parallel to each other and substantially perpendicular to the surface of the fuse box 100.

  Each blade-type fuse 200 is separately stored in each fuse storage hole 101. Further, a fuse connection terminal is introduced into the fuse housing hole 101 of the fuse box 100 so as to be connected to the metal terminal portion of the blade type fuse 300.

By the way, when the fuse is disconnected for some reason, the fuse must be removed from the fuse box. In this case, the user pulls out the fuse 200 from the fuse housing hole 101 with a finger or uses a special tool or the like. A new fuse 200 is inserted into the fuse housing hole 101 in the fuse box 100.
JP 2003-257300 A (particularly FIG. 5)

  In such a fuse box, it is difficult to increase the mounting density of the fuse on the surface of the fuse box. On the other hand, in recent automobiles and small boats, the number of electrical components installed has increased with the increase in functionality, and the number of fuses tends to increase accordingly. For this reason, when installing on a narrow vehicle with a limited installation space, miniaturization of the fuse box itself is strongly demanded.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a fuse box that can greatly reduce the installation space and can be downsized.

In order to achieve the above-described object, a fuse box according to the present invention is characterized by the following (1) to (4).
(1) A fuse box having a hollow cylindrical main body, the main body being supported at both longitudinal ends of the main body so as to be rotatable about an axis passing through the hollow portion,
A plurality of fuse holes into which a fuse can be inserted and removed are formed on the outer peripheral surface of the main body,
Each of the fuse holes is provided with a pair of terminal fittings that contact and electrically connect a pair of metal terminals of the fuse when the fuse is inserted into the fuse hole,
The ends of the wires routed in the hollow portion of the main body are electrically connected to the pair of terminal fittings,
thing.
(2) In the fuse box configured as described in (1) above,
The main body has rotating shaft portions protruding in directions away from each other along the axial center at both ends thereof.
Of the outer peripheral surface of the rotating shaft portion, the both end portions are supported by bearings formed on the inner wall of the fuse box accommodating fuse chamber so that the main body can be rotated in the fuse box accommodating fuse chamber. To be
thing.
(3) In the fuse box configured as described in (1) above,
Of the inner peripheral surface that defines the hollow portion of the main body, the both end portions are formed on the inner wall of the fuse box housing fuse chamber so that the main body is rotatable in the fuse box housing fuse chamber. Supported by the rotated support portion,
thing.
(4) In the fuse box having any one of the configurations (1) to (3),
The main body is formed by assembling a plurality of divided bodies,
The hollow portion formed when the plurality of divided bodies are assembled is defined by an inner peripheral surface of the divided body;
thing.

According to the fuse box having the above configuration (1) to (3), since the fuses are arranged three-dimensionally, the mounting area can be increased as compared with the conventional two-dimensional planar arrangement, and the fuse installation space As a result, the fuse box can be reduced in size. In addition, the fuse has a three-dimensional arrangement, but the main body can be rotated, and when replacing the fuse in a limited work place, the main body is rotated so that the desired surface portion of the main body can be rotated. It can appear to face the work place. Thereby, even if it is a fuse attached to any part of a perimeter surface, the replacement | exchange of the fuse can be performed easily and reliably.
According to the fuse box having the configuration of (4) above, the divided body can be individually attached and detached so that it can be replaced with the same one, or can be separately attached and detached and changed to another type. Depending on the grade, vehicle type, etc., versatility can be expanded by replacing part of the divided body as appropriate.

  According to the fuse box of the present invention, a plurality of fuses to be connected between the power source and various electrical components can be three-dimensionally mounted on the main body rotatably installed in the fuse chamber. Compared to a typical two-dimensional arrangement, the mounting area can be increased, the installation space can be greatly reduced, and the fuse box can be downsized. In addition, although the fuse has a three-dimensional arrangement, the main body can be rotated, and when replacing the fuse in a limited work place, the desired surface portion can be moved to the work place by rotating the main body. The fuse can be easily and surely exchanged even if it is a fuse attached at any location on the entire circumferential surface.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 shows a fuse box 1 according to a first embodiment of the present invention. For example, the fuse box 1 of this embodiment is provided in a fuse chamber 21 below a dashboard 2 in which an instrument panel is arranged. As shown in FIG. 2, the main body 3 has a substantially cylindrical shape (or may be a substantially rectangular tube shape) and is rotatably attached to the bearing 6 in the fuse chamber 21, and both ends of the main body 3. A rotating shaft 4 integrally provided on the surface, a plurality of fuses 5 attached to the surface (outer peripheral surface) 31 of the main body 3, a regulating means 7 for regulating the rotation angle of the main body 3 within a certain range, and a fuse chamber 21 An attachment / detachment means 8 (see FIG. 6) for securely attaching / detaching the main body 3 to / from the bearing 6 provided therein is provided.

  The fuse chamber 21 is installed so as to face the outside (vehicle interior) from a window 22 opened at the lower part of the dashboard 2. A fuse or the like can be inserted into the fuse chamber 21 from the window 22 to replace the fuse 5. Yes. In addition, although only the main body 3 is installed in the fuse chamber 21, for example, a manual describing the arrangement of the fuses 5 in the main body 3 may be stored. Further, a description of fuse arrangement or the like may be written on the back surface of the lid 23 that closes the window 22. In addition, when replacing the fuse 5, if it is difficult to insert a fingertip into the gap between the fuses 5 or a large force is required for pulling out the fuse 5, a dedicated pulling tool is attached to the fuse chamber 21. You may make it set to the floor surface etc. so that attachment or detachment is possible.

  Although only one main body 3 with a plurality of fuses 5 is horizontally arranged in the fuse chamber 21, the main body 3 may be arranged vertically (or obliquely). Further, depending on the system, or depending on the grade, vehicle type, etc., the number of fuses 5 required may be large. In that case, the main body 3 is composed of a plurality of fuses, and the main body 3 has a large number of fuses 5. May be attached.

  In addition to the main body 3, another one (preliminary main body) similar to the main body 3 having a substantially cylindrical shape or a substantially rectangular tube shape is installed for storing a spare fuse, and installed in the main body 3. When the fuse 5 is blown, the spare fuse accommodated in the spare body may be taken out and the broken fuse of the body 3 may be replaced. In this case, the spare main body has the same configuration as that of the main body 3, and a fuse having the same capacity as that of the main body 3 is accommodated in the fuse hole at the same position as the fuse hole 311 (see FIG. 3) of the main body 3. If this is done, the replacement of the fuse can be performed quickly and without fail.

The main body 3 has a substantially cylindrical shape as described above, and in particular, has a hollow shape in which a space (hereinafter referred to as “main space”) S ₁ is provided in the central portion along the axial direction. this utilizes the main space S _1, the wire harness for connecting the unillustrated battery and various electrical components (hereinafter, referred to as "wiring") W and has a configuration for wiring and the like (see FIG. 4). In addition, the main body 3 is provided with a rotating shaft portion 4 having a diameter smaller than that of the main body 3 at both ends, and the rotating shaft portion 4 is rotatable on a bearing 6 provided on the left and right inner wall surfaces 21A of the fuse chamber 21. Supported by As described above, the restricting means 7 is provided between the rotating shaft portion 4 and the bearing 6 and can be rotated up to nearly 360 degrees with respect to the bearing 6 as described later.

Further, the rotating shaft portions 4 provided on both end faces of the main body 3 also have a hollow cylindrical shape, and form a space (end space) S ₂ communicating with the main space S ₁ provided in the main body 3. is doing. Thus, as will be described later, thereby pulled toward the wire W provided in the main space S ₁ from the end portion space S ₂ to the outside (vehicle interior) of the body 3.

Moreover, the body 3 is in contact during such connection wiring work W, a wire W to be arranged in the main space S ₁ is exposed by opening the internal, and later fuse 5 side terminal 51 (see FIG. 8) The main body 3 and the main body 3 are provided integrally with the main body 3 for the purpose of connecting with the terminal metal fitting 34 for electrical connection and confirming the connection state between the terminal 51 on the fuse 5 side and the wiring W in the event of a failure. A rotating shaft portion 4 (to be described in detail later) is configured to be divided into a plurality of parts.

  As shown in FIG. 3, the main body 3 of the embodiment has two substantially semi-cylindrical shapes (hereinafter referred to as “divided bodies”) 3A, and these two divided bodies 3A. The structure which has the pin 331 formed in the joint surface 33 of the division body 3A of one side, and the fitting hole 332 drilled in the joint surface 33 of the division body 3A of the other side in order to fit this pin 331 It has become. Each divided body 3A is integrally formed with a portion corresponding to the rotary shaft portion 4 divided into two (divided shaft body 4A). In addition, this division direction may be not the axial direction of the main body 3 as in the present embodiment but the diametrical direction perpendicular to the rotation shaft portion.

As shown in FIG. 3, the divided body 3 </ b> A has fuse holes 311 that are formed radially (equally) at a plurality of locations, and each fuse hole 311 has a tip of a terminal 51 of each fuse 5. a pair of terminal fittings 34 parts 51A and electrical contact, are respectively fixed to the circumferential surface 32 (or the interior of the neighborhood) among facing the main space S _1.

The terminal fitting 34 of each pair wires W _1, w ₁ and the connector C _1, one end portion of the wire W ₁ in order to connect the unillustrated battery via the c ₁ is one side of the terminal shown in FIG. 4 In addition to being fixed to the metal fitting 34 by soldering or the like, one end of the wiring W2 is connected to each electrical component via the wirings W ₂ and w ₂ and the connectors C ₂ and c _2. It is fixed by soldering.

In the present embodiment, connectors C ₁ and c ₁ attached to one end of each of the wirings W ₁ and w ₁ between the wiring W ₁ connected to the fuse 5 side and the wiring w ₁ connected to the battery side. However, it is not essential to provide such a pair of connectors. That is, it is only necessary that the tip of the wiring w ₁ connected to the battery side and the terminal fitting 34 on the divided body 3A side can be easily connected by an appropriate means that can be attached and detached.

  The fuse 5 used here is a blade type fuse (flat type fuse) as shown in FIG. 8, and a pair of left and right terminals formed in a leg shape with a conductive material. 51, a fusible body (a portion that melts when an overcurrent flows) 52 that connects these terminals 51, and an insulator 54 that is formed of a synthetic resin or the like and accommodates the terminal 51 and the fusible body 52 and also has a head 53 formed. Etc. Normally, in such a fuse 5, when replacing the blown fuse 5, the head 53 is pinched with a fingertip or with an appropriate dedicated tool or the like and pulled out.

On the other hand, in this embodiment, as shown in FIG. 9, the fuses 5 are arranged radially from the center of the main body 3 in the radial direction orthogonal to the axial direction of the main body 3. Therefore, the pitch interval of the fuse 5 is larger in the pitch P ₁ of the fuse 5 on the outer peripheral surface 31 of the main body 3 than in the pitch P ₀ between the fuses 5 on the inner peripheral surface 32 of the main body 3. Even if the mounting density is increased and the fuse 5 is attached to the main body 3, the fingertip can be inserted. Further, even if the pitch interval P1 is narrowed in order to further increase the mounting area, the mounting area can be greatly increased in the present embodiment as compared with a flat fuse box.

  In addition, in order to prevent the wire W from being inadvertently twisted and cut many times as the main body 3 rotates between the rotating shaft portion 4 and the bearing 6 of this embodiment, in other words, at most, at most In order to restrict the rotation until one rotation, a restricting means 7 described later is installed.

  The bearing 6 is configured to be slidable only in the axial direction. In other words, the bearing 6 is configured to be unable to rotate in the circumferential direction with respect to the left and right inner wall surfaces 21A. A part of the means 7 and a part of the attaching / detaching means 8 shown in FIG.

Thus, the bearing 6 of the present embodiment, in FIG. 6, formed on the inner wall surface 21A of the left and right of the fuse chamber 21 (communicating with the body interior space S ₀₎ with respect to the hole 60, for example, not shown serrations The rotation is prevented in the circumferential direction by the above and the like, and the receiving member R described later is installed so as to be slidable in the thickness direction of the inner wall surface 21A (the axial direction of the bearing 6).

  The restricting means 7 prevents the main body 3 from rotating up to about 360 degrees at most with respect to the bearing 6 in the fuse chamber 21 so that the wiring W fixed to the terminal fitting 34 of the main body 3 with solder or the like is provided. Avoid twisting and cutting. The restricting means 7 of the present embodiment includes a ridge 41 projecting only at one location on a part of the outer peripheral surface of each rotating shaft 4 shown in FIG. 2, and each bearing shown in FIG. (Only the bearing 6 is shown) is formed with a convex stopper portion 61 provided on a part of the inner peripheral surface 6A of 6 and is the maximum in the case of rotating in either the clockwise direction or the counterclockwise direction. When the rotation is made approximately 360 degrees once, the protrusion 41 of the rotating shaft 4 is locked to the stopper 61 of the bearing 6 to prevent subsequent rotation.

  In this embodiment, the left and right rotating shaft portions 4 are supported by the left and right bearings 6 in a well-balanced manner, so that the protrusions 41 are positioned 180 degrees out of phase with each other on the left and right rotating shaft portions 4. At the same time, the stopper portion 61 of the bearing 6 is also formed at a portion whose phase is shifted by 180 degrees so as to correspond to the installation position of the protrusion 41, and is rotated by about 360 degrees. The angle is secured.

As shown in FIG. 6, the attaching / detaching means 8 supports the main body 3 spanned between the bearings 6 provided on the left and right inner wall surfaces 21A in the fuse chamber 21 (for example, in response to a change of a user optional function). B) Ensure that it can be easily and easily attached and detached when necessary. The attaching / detaching means 8 of the present embodiment is composed of a receiving member R fixed to a hole 60 formed in the inner wall surface 21A, and a bearing 6 that is serrated and engaged with the receiving member R. bearing 6 has become only slide axially movable relative to the inner circumferential surface R ₄ member R.

Receiving member R, together are provided stop projections R ₁ for preventing escape to the tip, the spring chamber R ₂ which is formed by folding the base end on the inner peripheral surface side, a compression spring accommodated in the spring chamber R ₂ R ₃ is provided, and the bearing 6 is pushed from the inner wall surface 21A toward the fuse chamber 21 by the compression spring R ₃ unless it is usually pressed by hand.

In order to ensure that the main body 3 can be attached and detached between the left and right bearings 6 reliably and easily, the distance (D ₀ ) between the left and right bearings 6 when pressed by the compression spring R ₃ is the main body 3. However, the distance (D _max ) between the bearings 6 when the bearings 6 are pushed in as much as possible is of course set to be shorter than the length (L) between the tips of the left and right rotating shafts 4. It is comprised so that it may become longer than the length (L) between the front-end | tips of the rotating shaft part 4 on either side.

  Therefore, in the attaching / detaching means 8 of the present embodiment, a hand is inserted into the fuse chamber 21, the bearing 6 is pushed by hand toward the inner wall surface 21A, and the bearing 6 is moved backward from the inner wall surface 21A side. 3 can be bridged between the left and right bearings 6. Moreover, the main body 3 after spanning between the bearings 6 advances the bearing 6 from the inner wall surface 21 </ b> A toward the fuse chamber 21 by stopping the pushing operation of the bearing 6 by hand. Therefore, the main body 3 is prevented from falling out between the bearings 6.

In addition, this invention is not limited to the aspect of above-described embodiment, Various aspects are possible.
For example, in the present embodiment, the rotary shaft portion 4 that is pivotally supported by the bearing 61 provided in the fuse chamber 21 is provided on both end surfaces of the main body 3. For example, the rotary shaft portion is provided in the fuse chamber 21, and You may provide the bearing which pivotally supports the rotating shaft part in both end surfaces.

  Further, in the present embodiment, the divided body 4A is composed of two pieces. However, for example, as shown in FIG. 7, the divided body 4A is composed of three or more divided bodies (here, composed of eight divided bodies 9A to 9H). You may make it comprise. In addition, these divisions may be exchanged only for the desired parts individually, and only the defective part may be exchanged. If the equipment such as electrical equipment differs depending on the type of vehicle used, etc. You may make it change the capacity | capacitance and the number which do to what can be mounted | worn.

  For connection between the wiring on the main unit side and the wiring on the battery or electrical component side, for example, by attaching display means with numbers assigned to the corresponding wirings or printing on the wiring itself, Connection mistakes can be prevented and quick connection work can be performed.

  Furthermore, in this embodiment, a fuse box is provided at the bottom of the dashboard in the car. However, in the case of an automobile, in addition to this, for example, a dedicated fuse box is installed in the engine room, and the main body etc. is provided there. The structure which attaches may be sufficient. In addition to the use for automobiles, the present invention can be applied to various small vehicles with limited installation space such as campers, small leisure boats, small aircrafts, and motorcycles.

The perspective view which shows the inside which provided the fuse box which concerns on embodiment of this invention Explanatory drawing showing the fuse box Explanatory drawing which shows the two division bodies which comprise the main body of the fuse box of this invention Explanatory drawing showing the connection of wiring between the fuse box body and the car Explanatory drawing which shows the structure of the control means of the fuse box of this invention Sectional drawing which shows the structure of the attachment or detachment means of the fuse box of this invention Explanatory drawing which shows the modification of the division body which comprises the main body of the fuse box of this invention Explanatory drawing showing a blade-type fuse as an example of a fuse used in a fuse box Explanatory drawing which shows the mounting pitch space | interval of the fuse in the main body of the fuse box of this invention A perspective view showing a conventional fuse box

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fuse box 2 Dashboard 21 Fuse chamber 21A Inner wall surface 22 Window 23 Cover 3 Main body 3A, 9A-9H Divided body 331 Pin 332 Fitting hole 4 Rotating shaft part 41 Projection part 5 Fuse 51 Terminal 6 Bearing 60 Hole 61 Stopper part 7 restricting means 8 attaching / detaching means R receiving member R ₁ stop protrusion R ₂ spring chamber R ₃ compression spring R ₄ inner peripheral surface S ₁ main space S ₂ end space S ₀ space W inside the vehicle body wiring (wire harness)
_{W 1, w 1, W 2} , w 2 wires (wire harness)
_{C 1, c 1, C 2} , c 2 connector

Claims (4)

A fuse box provided with a hollow cylindrical main body, the main body being supported at both longitudinal ends of the main body so as to be rotatable about an axis passing through the hollow portion,
A plurality of fuse holes into which a fuse can be inserted and removed are formed on the outer peripheral surface of the main body,
Each of the fuse holes is provided with a pair of terminal fittings that contact and electrically connect a pair of metal terminals of the fuse when the fuse is inserted into the fuse hole,
The ends of the wires routed in the hollow portion of the main body are electrically connected to the pair of terminal fittings,
Fuse box characterized by that. The main body has rotating shaft portions protruding in directions away from each other along the axial center at both ends thereof.
Of the outer peripheral surface of the rotating shaft portion, the both end portions are supported by bearings formed on the inner wall of the fuse box accommodating fuse chamber so that the main body can be rotated in the fuse box accommodating fuse chamber. To be
The fuse box according to claim 1. Of the inner peripheral surface that defines the hollow portion of the main body, the both end portions are formed on the inner wall of the fuse box housing fuse chamber so that the main body is rotatable in the fuse box housing fuse chamber. Supported by the rotated support portion,
The fuse box according to claim 1. The main body is formed by assembling a plurality of divided bodies,
The hollow portion formed when the plurality of divided bodies are assembled is defined by an inner peripheral surface of the divided body;
The fuse box according to any one of claims 1 to 3, wherein the fuse box is provided.

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