Fuse cover

Abstract

To provide a fuse cover capable of further improving the degree of freedom for an installation attitude or an installation place of an electric connection box which makes it possible to perform confirmation work or exchange work of a fuse without being removed.SOLUTION: A fuse cover 64 is capable of covering a fuse 631 which is stored and held in a main body part 11 of an electric connection box 10. The fuse cover 64 comprises a cover main body 641 having an opening 641a through which the fuse 631 can be inserted, and attached to the main body part 11. The fuse cover 64 also comprises a lid part 642 which is attached to the cover main body 641 and covers the opening 641a in an openable and closable manner.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present invention relates to a fuse cover. [Background technology]

[0002] A conventional fuse cover of this type is disclosed in Patent Document 1. Patent Document 1 discloses a cover (fuse cover) that is attached to the case of an electrical junction box and covers a fuse exposed from an opening of the case.

[0003] Such a fuse cover can be attached to a member constituting an electrical junction box, such as a case, in a state in which it can be removed or opened and closed, for example. Also, the electrical junction box to which the fuse cover is attached can be installed, for example, on an instrument panel provided in a vehicle.

[0004] At this time, it is preferable that the fuse cover can be removed and opened / closed while the electrical junction box remains installed in the instrument panel, etc. In this way, if the fuse cover can be removed and opened / closed without removing the electrical junction box, it becomes easier to check and replace the fuses. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 09-103019 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the above conventional configuration, in order to be able to check or replace the fuses while the electrical junction box is installed, it is necessary to install the electrical junction box in a state in which space is secured for removing or opening and closing the fuse cover. Therefore, the installation position and location of the electrical junction box that allows the fuses to be checked or replaced without removal are limited to positions and locations that ensure space for removing or opening and closing the fuse cover.

[0007] As described above, the conventional technology has the problem that it is difficult to improve the freedom of installation position and location of an electrical junction box that allows fuse checking and replacement work to be performed without removing the box.

[0008] The present invention has been made in view of the problems inherent in the prior art, and an object of the present invention is to provide a fuse cover that allows greater freedom in the installation position and location of an electrical junction box, thereby enabling fuse checking and replacement work to be performed without removing the box. [Means for solving the problem]

[0009] A fuse cover according to one aspect of the present invention is a fuse cover capable of covering a fuse housed and held in a main body of an electrical connection box, and has an opening through which the fuse can be inserted, and comprises a cover body attached to the main body, and a lid attached to the cover body and covering the opening in an openable and closable manner. Effect of the Invention

[0010] According to the present invention, it is possible to provide a fuse cover that allows greater freedom in the installation posture and location of an electrical junction box, thereby enabling fuse checking and replacement work to be performed without removing the box. [Brief description of the drawings]

[0011] [Figure 1]1 is a perspective view showing a schematic example of a method of arranging an ECU-equipped electrical junction box according to an embodiment of the present invention; [Diagram 2] 1 is a perspective view showing a schematic diagram of an ECU-equipped electrical junction box according to an embodiment of the present invention; [Diagram 3] FIG. 2 is an exploded perspective view showing a schematic diagram of an ECU-equipped electrical junction box according to one embodiment; [Figure 4] FIG. 2 is a perspective view showing an example of an electrical junction box according to an embodiment, in which the electrical junction box is seen in an assembled state from one direction. [Diagram 5] FIG. 13 is a perspective view showing an example of an electrical junction box according to an embodiment, with a fuse cover open, as viewed from another direction. [Figure 6] FIG. 2 is an exploded perspective view showing an example of an electrical junction box according to an embodiment, as viewed from one direction. FIG. [Figure 7] 11 is a perspective view showing a schematic diagram of another example of a method for arranging the ECU-equipped electric junction box according to the embodiment; FIG. [Figure 8] FIG. 1 is a schematic perspective view of an example of a fuse cover according to an embodiment, in which the lid portion is closed as viewed from one direction. [Figure 9] FIG. 1 is a schematic perspective view of an example of a fuse cover according to an embodiment, in which a lid portion is open and viewed from one direction. [Figure 10] FIG. 13 is a schematic perspective view of an example of a fuse cover according to an embodiment, showing the lid portion in a closed state as viewed from another direction. [Figure 11] FIG. 13 is a schematic diagram illustrating an example of a fuse cover according to an embodiment, in which the cover is open and is viewed from a different direction. [Figure 12] FIG. 13 is a diagram illustrating an example of a method for checking fuses when a fuse cover according to an embodiment is attached to a housing of a fuse block, the diagram illustrating the state in which the lid of the fuse cover is closed. [Figure 13]FIG. 13 is a diagram illustrating an example of a method for checking fuses when a fuse cover according to an embodiment is attached to a housing of a fuse block, the diagram illustrating the state in which the lid of the fuse cover is open. [Figure 14] FIG. 13 is a schematic diagram of a first modified example of a fuse cover according to one embodiment, in a perspective view seen from one direction with the lid portion closed. [Figure 15] FIG. 13 is a schematic diagram of a first modified example of a fuse cover according to an embodiment, in a perspective view seen from one direction with the lid portion open. [Figure 16] 13A and 13B are diagrams illustrating a second modified example of a fuse cover according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] The fuse cover according to the present embodiment will be described in detail below with reference to the drawings. Note that the dimensional proportions in the drawings are exaggerated for the convenience of explanation and may differ from the actual proportions.

[0013] In the following, when describing each component of the electrical junction box, the up-down direction of the electrical junction box will be defined with the side on which the body ECU is arranged facing upward.

[0014] In addition, the following embodiments and their modified examples include similar components, and therefore, in the following, the similar components are given the same reference numerals and redundant explanations are omitted.

[0015] The fuse cover 64 according to this embodiment is a cover capable of covering a mechanical fuse (fuse) 631 housed and held in the main body 11 of the electrical junction box 10.

[0016] Here, the electrical connection box 10 is also called a junction block (J / B), and is a device for distributing and supplying current supplied from a battery or alternator mounted on a vehicle or the like to an ECU (Electrical Control Unit) 110 mounted on the vehicle or the like.

[0017] The electric junction box 10 can be installed, for example, in an instrument panel formed in a vehicle together with a plurality of ECUs 110 having various control functions. The plurality of ECUs 110 are formed with circuits for controlling various vehicle systems, such as air conditioner control and ABS (Anti-lock Brake System) control.

[0018] In recent years, the electrification and automation of vehicles has progressed, and as the electrification and automation of vehicles progresses, the number of ECUs 110 mounted in the vehicles etc. is also increasing. On the other hand, there is also a demand to ensure sufficient interior space in the vehicle, so it is becoming difficult to ensure sufficient installation space for the electric junction box 10 and the ECU 110 in the vehicle.

[0019] Therefore, there is a demand for making it possible to arrange more devices (electrical junction boxes 10 and ECUs 110) in a limited space.

[0020] Therefore, in this embodiment, an electrical junction box 1 with an ECU is formed by integrating the electrical junction box 10 and the body ECU 120, and this electrical junction box 1 with an ECU is installed on an instrument panel formed on the vehicle.

[0021] 1, for example, this ECU-equipped electric junction box 1 can be installed in an instrument panel hose 100 that reinforces an instrument panel together with a plurality of ECUs 110. In this way, by arranging a plurality of ECUs 110 and ECU-equipped electric junction boxes 1 in a closely packed line, it becomes possible to arrange more devices (electrical junction boxes 10 and ECUs 110) in the limited space inside the vehicle.

[0022] At this time, the ECU-equipped electrical junction box 1 is installed on the instrument panel hose 100 in a state in which a fuse cover 64, which will be described later, is positioned on the opposite side (the lower side in FIG. 1) from the instrument panel hose 100. This makes it possible to remove, open, and close the fuse cover 64 without removing the ECU-equipped electrical junction box 1 from the instrument panel hose 100.

[0023] The installation method of the ECU-equipped electrical junction box 1 is not limited to the method shown in FIG. 1, and the ECU-equipped electrical junction box 1 can be installed in various ways (various locations and various postures).

[0024] 2 and 3, the present embodiment illustrates an electric junction box 10 having an accommodating recess S1 to which the body ECU 120 can be detachably attached. The body ECU 120 is detachably fitted into the accommodating recess S1 formed in the electric junction box 10 to form the ECU-equipped electric junction box 1. The method of forming the ECU-equipped electric junction box 1 is not limited to the method shown in FIGS. 2 and 3, and various other methods are possible.

[0025] The body ECU 120 attached to the electrical junction box 10 may be, for example, a device having a circuit for controlling a system inside the vehicle, such as door lock control.

[0026] Next, a specific configuration of the electrical junction box 10 according to this embodiment will be described with reference to FIGS.

[0027] In this embodiment, the electrical junction box 10 includes a case 20, a circuit block 30, a body ECU connector 40, a wire harness connector 50, and a fuse block 60.

[0028] Specifically, the case 20 is a member that constitutes the outer shell of the electric junction box 10, and an accommodation space S2 is formed inside the case 20.

[0029] In addition, various circuits are formed in the circuit block 30, such as a circuit having the function of distributing current supplied from the battery and alternator, and a control circuit, and this circuit block 30 is housed within the housing space S2 of the case 20.

[0030] The body ECU connector 40 is configured to fit into a connector portion (not shown) of the body ECU 120 when the body ECU 120 is attached to the electric junction box 10. By fitting the body ECU connector 40 into the connector of the body ECU 120, a part of the circuits formed in the circuit block 30 is electrically connected to a control circuit formed in the body ECU 120. In this manner, the body ECU connector 40 is a member for electrically connecting the circuit block 30 to the control circuit of the body ECU 120. In this embodiment, the body ECU connector 40 is accommodated in the accommodation space S2 with a part of it exposed to the outside of the case 20.

[0031] The wire harness connector 50 is a member into which a connector portion of a wire harness (not shown) is fitted to electrically connect the wire harness to some of the circuits formed in the circuit block 30. In this embodiment, the wire harness connector 50 is also accommodated in the accommodation space S2 with a portion of the wire harness connector 50 exposed to the outside of the case 20.

[0032] The fuse block 60 is a component for cutting off current when an overcurrent flows through a circuit formed in the circuit block 30, and this fuse block 60 is also housed within the housing space S2 with a portion of it exposed to the outside of the case 20.

[0033] As shown in FIG. 6, the case 20 includes an upper case 21 and a lower case 22, and by assembling the upper case 21 to the lower case 22, the case 20 is formed with an accommodation space S2 formed therein.

[0034] Specifically, the upper case 21 includes a top wall 211 and a peripheral wall 212 that is connected to the peripheral portion of the top wall 211 so as to extend downward. The lower case 22 includes a bottom wall 221 and a peripheral wall 222 that is connected to the peripheral portion of the bottom wall 221 so as to extend upward. The upper case 21 is assembled to the lower case 22 in a state in which the lower end of the peripheral wall 212 is butted against the upper end of the peripheral wall 222, thereby forming a case 20 having an accommodation space S2 formed therein. In this embodiment, when the upper case 21 is assembled to the lower case 22, an engagement portion 2221 formed on the peripheral wall 222 of the lower case 22 is engaged with an engagement portion (not shown) formed on the peripheral wall 212 of the upper case 21.

[0035] A first insertion hole 211a and a second insertion hole 211b are formed in the top wall 211 of the upper case 21 so as to penetrate in the up-down direction. When the various components are assembled to form the electric junction box 10, the body ECU connector 40 is inserted into the first insertion hole 211a so that an upper portion of the body ECU connector 40 is exposed to the outside of the case 20. A fusible link 632, which will be described later, is removably inserted into the second insertion hole 211b.

[0036] Furthermore, three notches (notch 212a, notch 212b, notch 212c) are formed in the peripheral wall 212 of the upper case 21, so that a storage space S2 that is open in three directions is formed in a state in which the upper case 21 is assembled to the lower case 22. That is, the storage space S2 is a space in which a first opening S2a, a second opening S2b, and a third opening S2c are formed.

[0037] An input wire harness connector 51 of the wire harness connector 50, which will be described later, is accommodated in the accommodation space S2 with a portion thereof exposed from the first opening S2a. An output wire harness connector 52 of the wire harness connector 50, which will be described later, is accommodated in the accommodation space S2 with a portion thereof exposed from the second opening S2b. And a fuse block 60 is accommodated in the accommodation space S2 with a portion thereof exposed from the third opening S2c.

[0038] Furthermore, in this embodiment, the upper case 21 is formed with an extension wall 213 that is connected to and extends upward from the peripheral portion of the top wall 211, and this extension wall 213 defines an accommodating recess S1 into which the body ECU 120 is fitted.

[0039] Moreover, the circuit block 30 includes a circuit board 31 and mounted components 32 mounted on the circuit board 31. The mounted components 32 are mounted on the circuit board 31 and electrically connected to a conductor pattern formed on the circuit board 31, so that the mounted components 32 and the conductor pattern form a part of each circuit.

[0040] Here, in this embodiment, circuit block 30 has a circuit for current distribution and a circuit for control, and circuit board 31 includes first circuit board 311 and second circuit board 312. Then, the circuit for current distribution is mainly formed on first circuit board 311, and the circuit for control is mainly formed on second circuit board 312.

[0041] In this manner, in this embodiment, components with relatively large current capacities, such as current distribution circuits, are concentrated on the first circuit board 311, and components with relatively small current capacities, such as control circuits, are concentrated on the second circuit board 312.

[0042] The current distribution circuit is formed using mounted components 32 such as relays, and the control circuit is formed using mounted components 32 such as control chips. Since a relatively large current flows through the current distribution circuit, a relatively large current also flows through the relays and the like that constitute a part of the current distribution circuit. For this reason, the relays and the like that constitute a part of the current distribution circuit are heat-generating components 321 that are prone to generating heat.

[0043] On the other hand, since there is no need to pass a large current through the control circuit, the mounted components 32 constituting a part of the control circuit include low heat resistant components 322 that have lower heat resistance than heat generating components 321 such as relays. For example, a control chip is a component that is easily affected by heat, and is the low heat resistant component 322.

[0044] Therefore, in this embodiment, heat generating components 321 such as relays used in the current distribution circuit are mainly mounted on the first circuit board 311, and low heat resistant components 322 such as control chips used in the control circuit are mainly mounted on the second circuit board 312. In this manner, thermal interference between the heat generating components 321 mounted on the first circuit board 311 and the low heat resistant components 322 mounted on the second circuit board 312 is suppressed.

[0045] Furthermore, in this embodiment, the circuit block 30 is provided with a pin header 33, which enables the second circuit board 312 to be held at a predetermined distance from the first circuit board 311.

[0046] This pin header 33 includes a housing 331 and a plurality of connection pins 332 held by the housing 331. The housing 331 holds the first circuit board 311, while the plurality of connection pins 332 electrically connect a circuit on the first circuit board 311 side to a circuit on the second circuit board 312 side. The plurality of connection pins 332 are fixed to the first circuit board 311 using solder or the like.

[0047] The body ECU connector 40 also includes a housing 41 and a plurality of connection pins 42 held by the housing 41. The housing 41 is fixed to the first circuit board 311 by screws 70. The plurality of connection pins 42 are electrically connected to the circuit of the first circuit board 311. In this manner, the body ECU connector 40 is held in a state in which it is electrically connected to the first circuit board 311. The plurality of connection pins 42 are also fixed to the first circuit board 311 by using solder or the like.

[0048] The wire harness connector 50 also includes an input wire harness connector 51 to which a wire harness connected to a battery or an alternator is connected, and an output wire harness connector 52 to which a wire harness connected to a control circuit of each ECU 110 is connected.

[0049] The input side wire harness connector 51 and the output side wire harness connector 52 are held by the first circuit board 311, respectively.

[0050] Specifically, the input side wire harness connector 51 includes an input side housing 511 and a plurality of input side connection pins 512 held by the input side housing 511. The input side housing 511 is fixed to the first circuit board 311 by screws 70. Furthermore, the plurality of input side connection pins 512 are electrically connected to the circuit of the first circuit board 311. In this manner, the input side wire harness connector 51 is held in a state in which it is electrically connected to the first circuit board 311. The plurality of input side connection pins 512 are also fixed to the first circuit board 311 by using solder or the like.

[0051] Similarly, the output-side wire harness connector 52 includes an output-side housing 521 and a plurality of output-side connection pins 522 held by the output-side housing 521. The output-side housing 521 is fixed to the first circuit board 311 by screws 70. Furthermore, the plurality of output-side connection pins 522 are electrically connected to the circuit of the first circuit board 311. In this manner, the output-side wire harness connector 52 is held in a state in which it is electrically connected to the first circuit board 311. The plurality of output-side connection pins 522 are also fixed to the first circuit board 311 by using solder or the like.

[0052] The fuse block 60 also includes a housing 61 having a plurality of fuse accommodating spaces S3 formed therein, a fuse 63 that can be inserted and held in the fuse accommodating space S3, and a connection pin 62 that is electrically connected to the fuse 63.

[0053] The housing 61 is fixed to the first circuit board 311 by screws 70. Furthermore, the connection pins 62 are electrically connected to the circuit of the first circuit board 311. In this manner, the fuse block 60 is held in a state of being electrically connected to the first circuit board 311, and a circuit with a fuse function is formed on the first circuit board 311. The multiple connection pins 62 are also fixed to the first circuit board 311 using solder or the like.

[0054] Furthermore, in this embodiment, the fuse 63 includes a plurality of mechanical fuses 631 and a plurality of fusible links 632, and each mechanical fuse 631 is removably inserted into the corresponding fuse accommodating space S3. Meanwhile, the fusible link 632 is removably inserted into the second insertion hole 211b formed in the top wall 211 of the upper case 21, as described above.

[0055] Here, when the fuse block 60 is attached to the case 20, the mechanical fuse 631 inserted into the fuse accommodating space S3 is arranged with its surface exposed to the outside of the case 20. This makes it possible to individually remove and replace the mechanical fuses 631 from the housing 61 with the electrical junction box 10 installed.

[0056] In this embodiment, the fuse block 60 is provided with a fuse cover 64. During normal use of the electrical junction box 10 (when the mechanical fuse 631 is not removed, etc.), the exposed portion of the mechanical fuse 631 is covered by the fuse cover 64. This makes it possible to prevent the mechanical fuse 631 from coming off the housing 61 during normal use of the electrical junction box 10.

[0057] In this embodiment, the fuse cover 64 is attached to the housing 61 so as to be openable and closable, as shown in Fig. 5. Specifically, an engagement hole 6412 is provided in the cover body 641 of the fuse cover 64, and a hooking claw 611 provided on the housing 61 is inserted into the engagement hole 6412 to engage with it. This allows the cover body 641 to be rotated around the engagement hole 6412 side as an axis. In this embodiment, a claw portion 6411 for hanging a finger is formed at the end of the cover body 641 opposite to the side where the engagement hole 6412 is formed, and by hooking a finger on the claw portion 6411, the cover body 641 can be easily rotated in the opening direction.

[0058] By configuring electric junction box 10 as described above, the current supplied to input side connection pin 512 is supplied to the circuit formed on second circuit board 312 through the circuit formed on first circuit board 311 and connection pin 332. Moreover, the current supplied to the circuit formed on second circuit board 312 is supplied to each control circuit of ECU 110 via connection pin 332, the circuit formed on first circuit board 311, and output side connection pin 522.

[0059] From the viewpoint of cost reduction and the like, such an electrical junction box 10 is configured so as to be commonly usable in various vehicles.

[0060] In addition, the installation position and installation posture of the electrical junction box 10 are determined for each vehicle. For example, in some vehicles, the electrical junction box 10 is installed vertically as shown in FIG. 1, while in other vehicles, the electrical junction box 10 is installed horizontally as shown in FIG. 7.

[0061] In this case, depending on the vehicle, with the electrical junction box 10 installed, it may become impossible to open, close, or remove the fuse cover 64. For example, as shown in Fig. 7, it may become impossible to rotate the fuse cover 64 relative to the main body 11 or remove it from the main body 11 because of interference from peripheral members such as the instrument panel hose 100.

[0062] In this case, if a fuse cover (conventional fuse cover) that can only expose the mechanical fuse 631 in one way (movement in one direction) is used, it will be impossible to expose the mechanical fuse 631 while the electrical connection box 10 is installed.

[0063] Therefore, when the electrical junction box 10 is installed in the state shown in FIG. 7, in order to check or replace the mechanical fuse (fuse) 631, it is necessary to remove the electrical junction box 10.

[0064] As described above, when using conventional fuse covers, the installation positions and locations in which it is possible to check or replace fuses without removing the electrical junction box are limited to a narrow range.

[0065] Therefore, in this embodiment, it is possible to further improve the freedom of installation posture and installation location of the electrical junction box 10, which allows fuse checking and replacement work to be performed without removing it.

[0066] 8 to 11, the fuse cover 64 has an opening 641a through which the mechanical fuse (fuse) 631 can be inserted, and includes a cover body 641 attached to the main body 11. The fuse cover 64 also includes a lid 642 attached to the cover body 641 and covering the opening 641a in an openable and closable manner.

[0067] In this way, by operating the lid portion 642 to open the opening 641a while the cover main body 641 is attached to the main body 11 of the electric junction box 10, it is possible to check or replace the mechanical fuse (fuse) 631. Also, as in the conventional case, it is possible to check or replace the mechanical fuse (fuse) 631 by removing the entire fuse cover 64 from the main body 11 of the electric junction box 10.

[0068] In this manner, in this embodiment, the fuse cover 64 allows checking and replacing the mechanical fuse (fuse) 631 (checking the fuse, etc.) in two ways.

[0069] Specifically, the cover body 641 is formed in a generally frame-like shape with an opening 641a formed on the inside. Then, as shown in Figures 12 and 13, when the cover body 641 is attached to the main body 11, all of the multiple mechanical fuses (fuses) 631 covered by the fuse cover 64 are exposed from the opening 641a. When the opening 641a is covered by the lid portion 642, all of the multiple mechanical fuses (fuses) 631 are also covered by the lid portion 642.

[0070] This allows the mechanical fuse (fuse) 631 to be checked or replaced not only by rotating the entire fuse cover 64 but also by opening and closing the lid portion 642.

[0071] The main body 11 refers to the components of the electrical junction box 10 excluding the fuse cover 64 and the fuse 63. In this embodiment, as described above, the fuse cover 64 is attached to the housing 61 in an openable and closable manner. Therefore, in this embodiment, the fuse cover 64 is attached to the housing 61 constituting a part of the main body 11 in an openable and closable manner. In this manner, in this embodiment, the fuse cover 64 is attached to the components constituting the fuse block 60, but it is also possible to attach the fuse cover 64 to other components constituting a part of the main body, such as the case 20.

[0072] If the mechanical fuse (fuse) 631 can be checked or replaced by opening and closing the cover 642, it will be unnecessary to remove the electrical junction box 10 installed in the state shown in Fig. 7 when checking the fuse, etc. Therefore, even if the electrical junction box 10 is installed in the state shown in Fig. 7, the mechanical fuse (fuse) 631 can be checked or replaced without removing the electrical junction box 10.

[0073] Thus, with the fuse cover 64 according to this embodiment, as long as there is enough space to operate the lid portion 642, it is possible to check the fuses without removing the electrical junction box 10. In other words, even if the electrical junction box 10 is installed in a position or location where there is no space to remove or open / close the fuse cover 64, it is possible to check the fuses without removing the electrical junction box 10.

[0074] Therefore, for example, even if the electrical junction box 10 is installed in a location or position where a conventional electrical junction box would require removal to perform fuse checking or the like, it is now possible to perform fuse checking or the like without removing the electrical junction box 10.

[0075] In this way, by allowing fuse checking and replacement work to be performed in two different ways, the electrical junction box can be installed in a more flexible position and location than with conventional electrical junction boxes which only have one way of doing so, allowing fuse checking and replacement work to be performed without removing the box.

[0076] Furthermore, in this embodiment, the lid portion 642 is rotatably attached to the cover body 641 via the hinge portion 643. Specifically, the lid portion 642 is integrally attached to the cover body 641 by the hinge portion 643 extending in the longitudinal direction on one side of the short side of the fuse cover 64. Furthermore, in this embodiment, the lid portion 642 includes a lid body 6421 that closes the opening 641a, and a protrusion 6422 provided on one side of the short side of the lid body so as to protrude in the thickness direction of the lid body 6421. When the opening 641a is closed by the lid body 6421, the engagement protrusion 6413 formed on the cover body 641 is engaged with the engagement hole 64221 formed on the protrusion 6422, so that the lid portion 642 can be releasably locked in the closed state.

[0077] In this manner, in this embodiment, the lid portion 642 and the cover body 641 are integrated, and the opening 641a can be opened and closed with the lid portion 642 attached to the cover body 641. This makes it possible to prevent the lid portion 642 from being lost when the opening 641a is opened and closed by the lid portion 642. It also makes it possible to prevent the lid portion 642 from coming off the cover body 641 during normal use (when the fuse checking operation or the like is not being performed), and to prevent the mechanical fuse (fuse) 631 from being exposed to the outside.

[0078] Furthermore, in this embodiment, a display section 6421b that enables confirmation of the allowable current value of the mechanical fuse (fuse) 631 is formed on the back surface 64212 of the lid section 642. Note that, in this embodiment, a display section 6421b that enables confirmation of the allowable current value of the mechanical fuse (fuse) 631 is also formed on the front surface 64211 of the lid section 642. That is, in this embodiment, display sections that enable confirmation of the allowable current value of the mechanical fuse (fuse) 631 are formed on both the front and back surfaces of the lid section 642. This makes it possible to confirm the allowable current value of the mechanical fuse (fuse) 631 in various states, making it easier to confirm the allowable current value of the mechanical fuse (fuse) 631.

[0079] For example, in the case where the hinge portion 643 is provided and the display portion 6421a is formed only on the surface 64211 of the lid portion 642, it is necessary to close the open lid portion 642 in order to check the allowable current value of the mechanical fuse (fuse) 631. This makes the work of checking the fuse complicated.

[0080] On the other hand, if the display portion 6421b is formed on the back surface 64212 of the cover portion 642, it becomes possible to check the allowable current value of the mechanical fuse (fuse) 631 with the cover portion 642 rotated to open the opening 641a. This makes it easier to check the fuse.

[0081] The display portions 6421a and 6421b can be formed by, for example, engraving, printing, attaching, or the like to the lid main body 6421.

[0082] As described above, by using the fuse cover 64 shown in this embodiment, it is possible to further increase the freedom in the installation position and location of the electrical junction box, making it possible to perform fuse checking work, etc. without removing the electrical junction box.

[0083] The fuse cover 64 may have the configuration shown in FIGS.

[0084] 14 and 15, the fuse can be checked by opening the opening 641a by manipulating the lid 642 while the cover main body 641 is attached to the main body 11 of the electrical junction box 10. Also, as in the conventional case, the fuse can be checked by removing the entire fuse cover 64 from the main body 11 of the electrical junction box 10.

[0085] In this way, the fuse cover 64 shown in FIGS. 14 and 15 also allows checking and replacing the mechanical fuse (fuse) 631 (checking the fuse, etc.) in two ways.

[0086] In addition, a display unit that enables the allowable current value of the mechanical fuse (fuse) 631 to be confirmed is formed on both the front and back sides of the cover portion 642, making it possible to check the allowable current value of the mechanical fuse (fuse) 631 in various conditions.

[0087] 14 and 15, the lid 642 can be removed from the cover body 641. For this reason, engagement holes 64221 are formed on both sides in the short direction of the lid body 6421, so that when the opening 641a is closed with the lid body 6421, it can be locked in two places.

[0088] The fuse cover 64 may also have a configuration as shown in FIG.

[0089] 16, the fuse can be checked by opening the opening 641a by manipulating the lid 642 while the cover main body 641 is attached to the main body 11 of the electrical junction box 10. Also, the fuse can be checked by removing the entire fuse cover 64 from the main body 11 of the electrical junction box 10, as in the conventional case.

[0090] In addition, a display unit that enables the allowable current value of the mechanical fuse (fuse) 631 to be confirmed is formed on both the front and back sides of the cover portion 642, making it possible to check the allowable current value of the mechanical fuse (fuse) 631 in various conditions.

[0091] 16, three (plural) lid portions 642 are formed on a cover body 641. This makes it possible to expose only the mechanical fuses 631 in a certain area including the mechanical fuses 631 that require checking or replacement.

[0092] In this way, during the checking or replacing work, touching of the mechanical fuse 631 that does not need to be checked or replaced is prevented, and deterioration of the fuse function can be prevented.

[0093] [Actions and Effects] The characteristic configurations of the fuse covers shown in the above embodiment and its modified examples and the effects obtained thereby will be described below.

[0094] The fuse cover 64 shown in the above embodiment and its modified examples is a fuse cover capable of covering the mechanical fuse (fuse) 631 housed and held in the main body 11 of the electrical junction box 10. This fuse cover 64 has an opening 641a through which the mechanical fuse (fuse) 631 can be inserted, and includes a cover main body 641 attached to the main body 11. The fuse cover 64 also includes a lid portion 642 attached to the cover main body 641 and covering the opening 641a in an openable and closable manner.

[0095] In this way, by opening the opening 641a by operating the lid portion 642 while the cover main body 641 is attached to the main body 11 of the electric junction box 10, it becomes possible to check or replace the mechanical fuse (fuse) 631. Also, by removing the entire fuse cover 64 from the main body 11 of the electric junction box 10, it becomes possible to check or replace the mechanical fuse (fuse) 631.

[0096] In this way, with the fuse cover 64 shown in the above embodiment and its modified example, the mechanical fuse (fuse) 631 can be checked or replaced (checked or replaced with a fuse) in two ways.

[0097] Therefore, even if the electrical connection box 10 is installed on an installation target such as an instrument panel in a state in which the fuse cover 64 cannot be removed from the main body 11, it is possible to check the fuse, etc., as long as there is space to operate the lid portion 642.

[0098] In other words, even if the electrical junction box 10 is installed in a position or location where it is not possible to secure space to remove or open / close the fuse cover 64, it is possible to perform fuse checking operations, etc. without removing the electrical junction box 10.

[0099] Therefore, for example, even if the electrical junction box 10 is installed in a location or position where a conventional electrical junction box would require removal to perform fuse checking or the like, it is now possible to perform fuse checking or the like without removing the electrical junction box 10.

[0100] In this way, by allowing fuse checking and replacement work to be performed in two different ways, there is greater freedom in the installation position and location of the electrical junction box, which allows fuse checking and replacement work to be performed without removing the box, compared to conventional electrical junction boxes which only have one method.

[0101] As described above, by using the fuse cover 64 shown in the above embodiment and its modified examples, it is possible to further improve the freedom of installation position and location of the electrical junction box, making it possible to perform fuse checking work, etc. without removing the electrical junction box.

[0102] Furthermore, the lid portion 642 may be rotatably attached to the cover body 641 via a hinge portion 643 .

[0103] This allows the opening 641a to be opened and closed with the lid part 642 attached to the cover body 641, thereby making it possible to prevent the lid part 642 from being lost when the opening 641a is opened and closed with the lid part 642. It also makes it possible to prevent the lid part 642 from coming off the cover body 641 during normal use (when the fuse checking operation, etc., is not being performed) and the mechanical fuse (fuse) 631 from being exposed to the outside.

[0104] Also, a display section 6421b may be formed on the rear surface 64212 of the cover section 642, allowing the allowable current value of the mechanical fuse (fuse) 631 to be confirmed.

[0105] This makes it easier to check the allowable current value of the mechanical fuse (fuse) 631 when the lid portion 642 is operated to open the opening 641a.

[0106] In particular, in the case where the hinge portion 643 is provided and the display portion 6421a is formed only on the surface 64211 of the lid portion 642, it is necessary to close the open lid portion 642 in order to check the allowable current value of the mechanical fuse (fuse) 631. This makes the work of checking the fuse complicated.

[0107] On the other hand, if the display portion 6421b is formed on the back surface 64212 of the cover portion 642, it becomes possible to check the allowable current value of the mechanical fuse (fuse) 631 with the cover portion 642 rotated to open the opening 641a. This makes it easier to check the fuse.

[0108] [others] Although the present embodiment has been described above, the present embodiment is not limited to this, and various modifications are possible within the scope of the gist of the present embodiment.

[0109] For example, the configurations shown in the above-described embodiment and its modified examples can be combined as appropriate.

[0110] Furthermore, in the above embodiment and its modified example, the electrical junction box 10 to which the body ECU 120 is attached has been exemplified, but the present invention can also be applied to a simple electrical junction box to which the body ECU 120 is not attached.

[0111] In addition, the case, circuit block, and other detailed specifications (shape, size, layout, etc.) can be changed as appropriate. [Explanation of symbols]

[0112] 10 Electrical junction box 11 Main body 20 cases 631 Mecha Fuse (Fuse) 64 Fuse cover 641 Cover body 641a aperture 642 Lid 64212 Back side 64212b Display section 643 Hinge part

Claims

1. A fuse cover capable of covering a fuse housed and held in a main body of an electrical junction box, a cover body having an opening through which the fuse can be inserted and attached to the body; a lid portion attached to the cover body and adapted to open and close the opening; Equipped with Fuse cover.

2. The lid portion is rotatably attached to the cover body via a hinge portion.

2. The fuse cover of claim 1.

3. A display unit is formed on the back surface of the cover unit to enable confirmation of the allowable current value of the fuse. The fuse cover according to claim 1 or 2.

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