JP2003317603A - Junction block and fuse puller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a junction block and a fuse puller capable of easily discerning a fuse of a specific function from others. <P>SOLUTION: A puller mounting part 16 for mounting the fuse puller 17 is arranged at a position adjacent to and in response to a specific fuse mounting part for mounting the specific fuse 13A. By the fuse puller 17 mounted in a protruded state at the puller mounting part 16, the specific fuse 13A mounted at a position adjacent to and in response to the fuse puller 17 is enabled to be discerned. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a junction block having a centralized connection function for electric wiring in a vehicle and having a plurality of fuses mounted therein, and a fuse mounting portion for removing the fuses from the junction block. It concerns fuse pullers.

[0002]

2. Description of the Related Art As a conventional junction block, for example, a structure shown in FIG. 10 is known. In this conventional configuration, a plurality of fuse mounting portions 32 are formed in an array on the block main body 31, and the fuses 33 are detachably attached to these fuse mounting portions 32.

By the way, when a vehicle is left for a long time without being driven, such as when it is transported by sea or the like, it is normally closed regardless of whether the ignition switch or the like is switched on or off. The electric power of the battery may be consumed due to the operation of the electrical equipment of the closed circuit, and for the purpose of preventing this, the specific fuse 33A connected to the normally closed circuit is removed from the specific fuse mounting portion 32A. It Then, when it is necessary to move the vehicle, the specific fuse 33A is mounted on the specific fuse mounting portion 32A.

Therefore, in order to remove the specific fuse 33A from the specific fuse mounting portion 32A and to mount the specific fuse 33A without error, it is necessary to make the specific fuse mounting portion 32A easily distinguishable from other fuse mounting portions 32. There is. For this reason, in the conventional junction block, the specific fuse mounting portion 32A is arranged in the corner portion on the block body 31, and the partition wall 37 extending from the peripheral wall 36 of the block body 31 is provided around the fuse mounting portion 32A. By being formed, the partition wall 37 distinguishes the specific fuse mounting portion 32A from the other fuse mounting portions 32.

[0005]

However, in the structure in which the partition wall 37 is provided, the partition wall 37 has fuses 33, 3 for the fuse mounting portions 32, 32A.
It was necessary to form it at the same height as or lower than the peripheral wall 36 so as not to obstruct the attachment and detachment of the 3A. Therefore, the fuse 33,
In the state in which 33A is mounted, the partition wall 37 is located lower than the fuses 33A, 33 and is difficult to identify. In particular, the specific fuse mounting portion 32A is the block body 3
If it is located in the center of 1, the fuses 33,
Since 33A stands, it is extremely difficult to identify. Therefore, in many cases, the specific fuse mounting portion 32A
Are arranged at the corners of the block body 31 as described above. Therefore, in the conventional junction block, there is no degree of freedom in the arrangement position of the specific fuse mounting portion 32A, and restrictions in the design of the junction block increase, which may hinder the optimum design.

Moreover, the junction block is hardly set upward in a conspicuous position with respect to the vehicle, and is set laterally or obliquely downward in a narrow dark space below the instrument panel, for example. In such a case, even if the specific fuse mounting portion 32A is provided at the corner of the block body 31, it is extremely difficult to identify its position. Therefore, there is a possibility that the specific fuse 33A may be mistaken for the other fuse 33 or the specific fuse 33A may be mistakenly attached to the other fuse attachment portion.

In order to prevent this, the specific fuse 33
It may be possible to color the partition wall 37 of FIG. 3 so as to be different from the surrounding color, but even in this case, the difficulty of identification is not so much solved because the partition wall 37 is low and the surroundings are dark. In addition, in this case, simultaneous molding of two colors is required when molding the junction block, which complicates the molding process and inevitably increases costs.

The present invention has been made by paying attention to the problems existing in such a conventional technique, and the purpose thereof is to be able to clearly identify a specific fuse mounting portion and to make a junction block. It is possible to prevent the cost increase of the above and to give the fuse puller attached to the junction block an additional function other than the original function.

[0009]

In order to achieve the above-mentioned object, the invention according to the junction block according to claim 1 has a proximity to a specific fuse mounting portion for mounting a specific fuse for a specific purpose. It is characterized in that a puller mounting portion for mounting a fuse puller is arranged at a corresponding position.

Therefore, according to the first aspect of the invention, the fuse puller is arranged at a position in close proximity to the specific fuse mounting portion, and the specific fuse is identified by the fuse puller. In this case, since the fuse puller can be projected from the partition wall described above,
It is easy to identify, and even if the junction block is installed obliquely downward, the mounting position of the specific fuse can be clearly identified. Further, since the identification is easy as described above, the specific fuse mounting portion can be arranged at an arbitrary position, and the design constraint can be significantly reduced. Further, since the mounting position of the fuse puller is arranged only in correspondence with the specific fuse mounting portion and no other identifying means is provided, there is no factor of cost increase.

According to a second aspect of the invention, in the first aspect of the invention, the fuse puller abuts a part of the relay mounted on the relay mounting portion to regulate the position of the relay. The puller mounting portion is arranged close to the relay mounting portion.

According to the second aspect of the invention, the position of the relay can be regulated by the fuse puller while the fuse puller is attached to the puller attachment portion. Therefore, the relay can be regulated and held in a predetermined mounted state by using the fuse puller.

According to a third aspect of the present invention, there is provided a fuse puller that is detachably mountable to the mounting portion of the junction block according to the first or second aspect, and the fuse is mounted from the fuse mounting portion. In addition to the main function section having the main function to be extracted, an auxiliary function section having an auxiliary function different from the main function is provided.

According to the third aspect of the present invention, it is possible to provide an effective fuse puller by applying it to the junction block as described above, and one fuse puller has the main function of removing the fuse. In addition, the fuse puller can be used for multiple functions by exerting another function as an auxiliary function.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the regulation for contacting a part of the relay mounted on the relay connector of the junction block to regulate the position of the relay. It is characterized in that a section is provided.

According to the fourth aspect of the invention, the relay can be restricted to a predetermined position by using the fuse puller. According to a fifth aspect of the invention, in the invention according to the fourth aspect, the restriction portion is formed on a side surface that abuts a side surface of the relay.

In the invention according to claim 5, by restricting the side surface of the relay by the side surface of the fuse puller, a part of the wall portion on the junction block side for restricting the position of the relay can be omitted, and the weight of the junction block can be reduced. Can contribute to

According to a sixth aspect of the invention, in the fourth aspect of the invention, the restricting portion is a locking projection formed on the upper end portion so as to abut the top surface of the relay. It is peach.

In the invention according to the sixth aspect, the top surface of the relay can be pressed by the locking projection to prevent the relay from falling off, and when the relay is in a semi-mounted state, the locking is performed. Due to the interference between the protrusion and the relay top surface, the fuse puller cannot be attached at a predetermined position of the puller attachment portion, and the semi-attached state can be easily identified.

According to a seventh aspect of the invention, in the third aspect of the invention, the auxiliary function portion is a tongue piece for engaging the bottom surface of the relay in a mounted state to lift the relay. It is characterized by.

In the invention according to claim 7, since the relay can be lifted by utilizing the tongue piece, a tool for lifting the relay when removing the relay from the relay mounting portion should be prepared. Without
The relay can be easily removed.

In the invention described in claim 8, the auxiliary function portion is an instructing projection for instructing a specific fuse. According to the invention as set forth in claim 8, the specific protrusion can be more easily and accurately identified by the pointing protrusion.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) A first embodiment of the present invention will be described below with reference to FIGS.

As shown in FIGS. 1 and 2, a plurality of fuse mounting portions 12 are formed in an array on the block main body 11 of the junction block.
The fuses 13 are detachably attached to the fuses 13, and the fuses 13 are electrically connected to a bus bar (not shown) forming an electric circuit in the block body 11 in the attached state. One of the fuse mounting parts 12 is
It is a specific fuse mounting portion 12A, and a specific purpose fuse (hereinafter referred to as a specific fuse) 13A is removably mounted on this specific fuse mounting portion 12A. The specific fuse 13A in this embodiment is connected to a normally closed circuit that is normally closed regardless of whether the ignition switch or the like is switched on or off.

A square hole-shaped puller mounting portion 16 is formed on the block body 11 at a position close to the specific fuse mounting portion 12A. As shown in FIGS. 3 and 4, inside the puller mounting portion 16 is formed. A partition 16a extending in the vertical direction is formed at the center of the partition, and a latching protrusion 16b is provided at the bottom of the partition 16a. A fuse puller 17 is detachably attached to the puller attachment portion 16. The fuse puller 17 includes a pair of holding pieces 17a,
17b and a connecting portion 17c having an arcuate spring property for connecting the holding pieces 17a, 17b so as to be openable and closable, and the inner surfaces of both ends of the holding pieces 17a, 17b are engaged as main functional portions. The claw portions 17d are formed, and the spring force of the connecting portion 17c urges the engaging claw portions 17d in a direction to close the space.

Then, as shown in FIG. 3, when the fuse puller 17 is mounted in the puller mounting portion 16, one engaging claw portion 17d engages with the hooking protrusion 16b, and the fuse puller 17 is removed. It is locked and held in the mounted state. In this state, the upper end of the fuse puller 17 is located in the block body 11
Project to the upper surface side. In addition, as shown in FIG. 4, the fuse puller 17 is removed from the puller mounting portion 16 and the fuse 1 attached to the fuse mounting portions 12 and 12A.
The heads 13a of 3 and 13A can be engaged and clamped between the engaging claws 17d. In this state, the fuse puller 1
By pulling up 7, the fuses 13 and 13A can be removed from the mounted state in the fuse mounting portions 12 and 12A.

As shown in FIG. 1, the block main body 11
On the upper surface of one side, a pair of relay mounting portions 18 are arranged in a state of being partitioned by a wall portion 18a formed in a rectangular frame shape. The relay mounting portion 18 has a relay 19
Is detachably attached.

When the vehicle is left for a long period of time for transporting the vehicle, the specific fuse 13A is replaced with the specific fuse mounting portion 12A in order to prevent power consumption of the battery.
Pulled from.

At the time of removing the specific fuse 13A, the fuse puller 17 is mounted on the puller mounting portion 16 on the block body 11 in a protruding state, and
Since the specific fuse 13A is attached to the position corresponding to the proximity thereof, the specific fuse 13A and the mounting portion 12A can be easily identified. Then, remove the fuse puller 17 from the puller mounting portion 16,
As shown in FIG. 4, by fitting in the specific fuse 13A, the specific fuse 13A can be easily removed from the specific fuse mounting portion 12A by using the fuse puller 17.

Even when the normal fuse 13 attached to the arbitrary fuse mounting portion 12 on the block body 11 is pulled out, by removing the fuse puller 17 from the puller mounting portion 16 and fitting it into the fuse 13, The fuse 13 can be easily pulled out from the fuse mounting portion 12 via the fuse puller 17.

As described above, according to this embodiment, based on the fuse puller 17 mounted in the puller mounting portion 16 in a protruding state, the specific fuse 13A mounted at a position close to the fuse puller 17 is provided. The other fuses 13 can be easily distinguished from each other, and the specific fuse 13A can be removed from the specific fuse mounting portion 12A without any error, or the specific fuse 13A can be mounted in the specific fuse mounting portion 12A. Then, as is clear from FIGS. 1 to 4, the fuse puller 17 can be largely projected to the upper surface side of the block body 11,
When the junction block is mounted in a narrow space in the vehicle cabin, or when the fuse mounting parts 12, 12 are installed.
The specific fuse 13A can be easily identified even when it is mounted with the A side facing diagonally downward. Therefore,
The specific fuse 13A can be removed or attached efficiently and efficiently.

Even if the fuse puller 17 is largely projected to the upper surface side of the block body 11 as described above, if the fuse puller 17 is removed from the puller mounting portion 16,
The fuse puller 17 does not interfere with the attachment / detachment of the fuses 13 and 13A. Further, since no identification part is provided on the block main body 11 for the identification of the specific fuse 13A or no coloring process for identification is performed, the junction block can be easily molded and manufactured, and the cost can be reduced. Can be planned. Further, since the mounting position of the specific fuse mounting portion 12A is determined according to the circuit design in the junction block and the position of the puller mounting portion 16 of the fuse puller 17 is determined accordingly, the position of the specific fuse mounting portion 12A is determined. It can be set freely, and the restrictions on the design of the junction block can be greatly reduced.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIG. In the description of each of the second and subsequent embodiments, parts different from the first embodiment will be mainly described.

In the second embodiment, as shown in FIG.
As shown in FIG. 3, an opening 21 is formed on one side of the wall portion 18 a of one relay mounting portion 18, and the puller mounting portion 16 of the fuse puller 17 is arranged so as to closely correspond to the opening 21. On the other hand, both clamping pieces 17 of the fuse puller 17
The side surfaces of a and 17b serve as a regulation surface 22 as a regulation portion that constitutes an auxiliary function portion. By attaching the fuse puller 17 to the puller mounting portion 16 when the relay 19 is attached to the relay mounting portion 18, The regulation surface 22 contacts the side surface of the relay 19 to guide the attachment / detachment of the relay 19 and regulate the position.

Therefore, according to the second embodiment, even if the wall portion 18a of the relay mounting portion 18 is not formed over the entire circumference of the portion 18, the attachment / detachment guide of the relay 19 and the relay 19 are provided.
Since it is possible to reliably regulate and hold the connector in a predetermined mounting state, it is possible to reduce the weight of the junction block.

(Third Embodiment) Next, a third embodiment of the present invention will be described. Now, in the third embodiment, as shown in FIG. 6, the puller mounting portion 16 is arranged in close proximity to one side portion of one relay mounting portion 18.
At both upper ends of the sandwiching pieces 17a and 17b of the fuse puller 17, a locking projection 2 as a restricting portion constituting an auxiliary function portion is provided.
When the fuse puller 17 is mounted on the puller mounting portion 16 in a state in which the relay 19 is mounted on the relay mounting portion 18, the locking protrusion 23 causes the relay projection 19 to be mounted on the relay mounting portion 18.
The position of the relay 19 is regulated by making contact with the top surface of the relay.

Therefore, according to the third embodiment, the fuse puller 17 can prevent the relay 19 from coming out of the mounted state due to vibration or the like, and the relay 19
Incompletely installed, so to speak, in the semi-connected state, the locking protrusion 2
The fuse puller 1 due to the interference between 3 and the top surface of the relay 19.
7 cannot be installed in the puller installation section 16, so relay 19
The wearing state of can be identified easily and surely. Further, since it is only necessary to integrally form the locking protrusion 23 on the fuse puller 17, the configuration of the fuse puller 17 is simple.

(Fourth Embodiment) Next, a fourth embodiment of the present invention will be described. Now, in the fourth embodiment, as shown in FIGS. 7 and 8, in the wall portion 18a of each relay mounting portion 18, a pair of insertion grooves 24 is formed at the lower end portion of the opposing wall.
Are transparently formed. A tongue piece 25 as an auxiliary function portion is provided on the side of one holding piece 17a of the fuse puller 17.
Are projected integrally. Then, when the relay 19 is pulled out from the relay mounting portion 18, the tongue piece portion 25 is inserted into the bottom surface side of the relay 19 through the insertion groove 24 so that the relay 19 can be levitated.

Therefore, according to the fourth embodiment, the fuse puller 17 has a main function of pulling out the fuses 13 and 13A from the fuse mounting portions 12 and 12A of the junction block, and an auxiliary function of pulling out the relay 19 from the relay mounting portion 18. It can also function. Therefore, one fuse puller 17 can be effectively used for a plurality of purposes.

(Fifth Embodiment) Next, a fifth embodiment of the present invention will be described. In the fifth embodiment, as shown in FIG. 9, one side portion of the flexible connecting portion 17c of the fuse puller 17 is integrally provided with an instruction protrusion 26 as an auxiliary function portion in the lateral direction. Has been done. Then, when the fuse puller 17 is mounted on the puller mounting portion 16 in the mounting state of the specific fuse 13A with respect to the specific fuse mounting portion 12A, the instructing projection 26 is arranged above the specific fuse 13A, and the specific fuse 13A The position of is indicated.

Therefore, according to the fifth embodiment, one fuse puller 17 can be utilized for a plurality of functions, and the specific fuse 13A can be specified more clearly so that its attachment / detachment can be performed without error. it can.

[0042]

As described above in each embodiment, the present invention can clearly identify the specific fuse and its mounting part, and can avoid the increase in the cost of the junction block. It has an excellent effect that the fuse puller attached to the junction block can be provided with an additional function other than the original function.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a fuse and the like of a junction block of a first embodiment are removed.

FIG. 2 is a perspective view of the junction block.

FIG. 3 is a cross-sectional view of essential parts showing a state in which a fuse puller is attached to the attachment portion of the junction block of FIG.

FIG. 4 is a side view showing a state in which a fuse is pulled out by a fuse puller.

FIG. 5 is an exploded perspective view of essential parts of a junction block according to a second embodiment.

FIG. 6 is a perspective view of a main part of a junction block according to a third embodiment.

FIG. 7 is an exploded perspective view of essential parts of a junction block of a fourth embodiment.

8 is a perspective view showing a fuse puller mounted on the junction block of FIG.

FIG. 9 is a perspective view of a main part of a junction block according to a fifth embodiment.

FIG. 10 is an exploded perspective view showing a conventional junction block.

[Explanation of symbols]

11 ... Block body, 12 ... Fuse mounting portion, 12A ...
Specific fuse mounting portion, 13 ... Fuse, 13A ... Specific fuse, 16 ... Puller mounting portion, 17 ... Fuse puller,
18 ... Relay mounting part, 19 ... Relay, 22 ... Restriction surface as auxiliary function part and restriction part, 23 ... Locking protrusion as auxiliary function part and restriction part, 25 ... Tongue part as auxiliary function part, 26 ... Protrusion for instruction as an auxiliary function part.

Claims (8)

[Claims] 1. A junction block having a plurality of fuse mounting portions for mounting fuses, wherein a fuse puller is mounted at a position close to a specific fuse mounting portion for mounting a specific fuse for a specific purpose. A junction block characterized by having a puller mounting part for carrying out. 2. The puller mounting portion is arranged close to the relay mounting portion so that the fuse puller abuts on a part of the relay mounted on the relay mounting portion to regulate the position of the relay. The junction block according to claim 1, which is characterized in that. 3. A main function part having a main function of removing the fuse from the fuse mounting part while being configured to be detachably mountable to the puller mounting part of the junction block according to claim 1. In addition to the,
A fuse puller characterized by integrally forming an auxiliary function section having an auxiliary function different from the main function. 4. The auxiliary function part abuts on a part of the relay mounted on the relay mounting part of the junction block,
4. The fuse puller according to claim 3, further comprising a restriction portion for restricting the position of the relay. 5. The fuse puller according to claim 4, wherein the restricting portion is formed on a side surface that abuts a side surface of the relay. 6. The fuse puller according to claim 4, wherein the restricting portion is a locking protrusion formed on an upper end portion of the relay portion so as to contact the top surface of the relay. 7. The fuse puller according to claim 3, wherein the auxiliary function part is a tongue part for engaging the bottom surface of the mounted relay to lift the relay. 8. The fuse puller according to claim 3, wherein the auxiliary function portion is an instruction protrusion for instructing a specific fuse.