JPH0643993U - Fuse box for vehicle - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a fuse box for a vehicle in which the number of parts for mounting a current sensor is reduced, the reliability and mounting workability of the current sensor are improved, and the cost is reduced. A fuse box body 1 to which a plurality of fuses 17 and 30 are attached is provided, and the fuse box body 1 is electrically connected to the fuses 17 and 30.
Six conducting plates 3, 8, 12, 20, 21, 22 are provided.
These first to sixth conducting plates 3, 8, 12, 22, 21, 21
2 is incorporated into the fuse box body 1 to measure a current value conducted to the current sensor 2 and
8 is electrically connected to the first conductive plate 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle fuse box equipped with a current sensor for measuring a current value conducted through a bus member.

[0002]

[Prior art]

 A fuse box equipped with a plurality of fuses is provided on a switchboard of a general vehicle such as a passenger car or a bus. This fuse box is constructed as shown in FIG.

That is, the first conductive plate 3 as a bus member is provided on the substrate 2 of the fuse box body 1 formed of an electrically insulating material such as synthetic resin. The first conducting plate 3 is formed of a substantially L-shaped copper plate.

Three mounting holes are formed in the first conducting plate 3, and bolts 5a, 5b, 5c are inserted from the back surface of the substrate 2 into these mounting holes, and these bolts 5a, 5b, The first conducting plate 3 is attached and fixed to the base plate 2 by fastening the nuts 6a, 6b, 6c to the 5c. A battery (not shown) is electrically connected to the bolt 5a for fixing the first conducting plate 3, and a starter switch of the engine (not shown) is electrically connected to the bolt 5b.

A second conducting plate 8 is provided on the substrate 2 so as to conduct electricity to the first conducting plate 3. That is, the second conducting plate 8 is provided with two mounting holes, and the bolts 5c and 9 are inserted from the back surface of the substrate 2 into these mounting holes. The second conducting plate 8 is attached and fixed to the substrate 2 by fastening the nuts 6c and 10 to. That is, the bolt 5c is a common bolt for fixing the first and second conductive plates 3 and 8 to the base plate 2.

Further, the substrate 2 is provided with a third conducting plate 12 having a substantially L shape. Like the first and second conducting plates 3 and 8 described above, the third conducting plate 12 has a plurality of bolts 13 ... Inserted from the rear surface of the substrate 2, and the plurality of nuts 14 ... By being fastened, the third conducting plate 12 is attached and fixed to the substrate 2. An alternator (not shown) is electrically connected to the bolt 13d.

The third conductive plate 12 is provided with an extension 12a, and the extension 12a is provided with an attachment hole. The bolt 15 is inserted from the back surface of the substrate 2 into the attachment hole. A nut 16 is fastened to 15. The hook portion 17a of the fuse 17 is hooked on the bolt 15 and the bolt 9 of the second conducting plate 8, and the fuse 17 electrically connects the second conducting plate 8 and the third conducting plate 12. At the time of overcurrent, the fuse 17 is blown to prevent the current from flowing from the second conducting plate 8 to the third conducting plate 12.

The substrate 2 is provided with fourth, fifth and sixth conduction plates 20, 21, 22. Two mounting holes are formed in the fourth, fifth, and sixth conductive plates 20, 21, 22 and bolts 24a, 24b, 25a, 25b, 26a, 26b are formed in the mounting holes from the rear surface of the substrate 2. Are inserted through the bolts 24a, 24b, 25a, 25b, 26a, 26b, and nuts 27, 28, 29 are fastened to the bolts 24a, 24b, 25a, 25b, 26a, 26b, respectively. It is attached and fixed to 2.

A body load, an air conditioner, and a chassis are electrically connected to the bolts 24a, 25a, and 26a, respectively. A hook portion 30a of a fuse 30 is hooked on each of the bolts 24b, 25b, 26b and the bolts 13a, 13b, 13c for fixing the third conductive plate 12 to the substrate 2. These fuses 30 electrically connect the third conducting plate 12 and the fourth to sixth conducting plates 20, 21, and 22, and the fuse 30 is blown out at the time of an overcurrent and the third conducting plate 12 to the fourth to fourth conducting plates 12 to 22 are electrically connected. 6 to prevent current from flowing through the conductive plates 20, 21, 22.

A current sensor 35 is connected to a bolt 5b for fixing the first conducting plate 3 to the substrate 2 via a lead wire 35a. The current sensor 35 measures the value of the current flowing through the first conductive plate 3 and displays it on, for example, an ammeter provided in the meter display section of the instrument panel.

Further, the current sensor 35 is mounted and fixed by a bolt 37 to a mounting seat 36 provided separately from the fuse box body 1. Replacement fuses 38 and 39 for replacement are attached to the board 2.

[0012]

[Problems to be solved by the device]

 As described above, conventionally, the current sensor 35 is fixed to the mounting seat 36 by the bolts 37, is provided at a position apart from the fuse box body 1, and both are connected by the lead wire 35a. It is necessary and the number of parts is increasing. Moreover, since a large current flows through the current sensor 35, it is necessary to ensure the reliability of the current sensor 35.

The present invention has been made in view of the above circumstances, and its purpose is to reduce wiring work, reduce the number of mounting parts of the current sensor, and improve reliability and mounting work of the current sensor. (EN) Provided is a fuse box for a vehicle, which can improve the efficiency and reduce the cost.

[0014]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a fuse box body to which a plurality of fuses are attached with a bus member for electrically connecting the fuses. A current sensor for measuring a current value for conducting the bus member is incorporated in the fuse box body to electrically connect the current sensor and the bus member.

[0015]

[Action]

 According to the fuse box having the above configuration, when the current sensor is integrally incorporated in the fuse box body, the current sensor and the bus member are electrically connected directly, so that there is no fear of disconnection and the reliability of the current sensor. Is secured.

[0016]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. It should be noted that the same components as those of the related art are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIGS. 1 to 3, the current sensor 38 is housed inside a rectangular parallelepiped sensor box 39, and two support legs 39 a project from the bottom of the sensor box 39. It is set up.

On the other hand, the board 2 of the fuse box body 1 is provided with a mounting recess 40 for mounting the current sensor 38. The mounting recess 40 is formed in a rectangular shape following the cross-sectional shape of the sensor box 39 so that the lower end of the sensor box 39 can be inserted, and the lower surface of the mounting recess 40 is fitted with the support leg 39a of the current sensor 38. A dowel hole 40a is provided.

An engaging recess 45 having the same width as that of the mounting recess 40 is provided on one end side in the longitudinal direction of the mounting recess 40, and the engaging recess 45 and the mounting recess 40 are narrower than these recesses. The grooves 46 communicate with each other. Therefore, the engagement recess 45 and the engagement groove 46 form a substantially T-shape in a plan view.

On the other hand, an engaging convex portion 47 is integrally provided on one end surface of the current sensor 38 in the longitudinal direction of the sensor box 39 so as to project. The engaging convex portion 47 is composed of a head portion 47a that engages with the engaging concave portion 45 and a neck portion 47b that engages with the engaging groove 46, and is substantially T-shaped in a plan view.

Therefore, when the sensor box 39 is assembled into the mounting recess 40 of the fuse box body 1, unless the engaging protrusion 47 is directed toward the engaging recess 45 side of the fuse box body 1, the engaging protrusion 47 will be removed. The directionality of the installation is set in one direction so that it cannot be installed by abutting on 2.

Further, at a substantially middle portion in the height direction of the sensor box 39, that is, at a position corresponding to the height of the first conducting plate 3 fixed to the substrate 2, the same direction as the extension direction of the first conducting plate 3 is provided. A through hole 48 is provided in the.

The through hole 48 is formed in a slit shape having a width and height dimension slightly larger than its cross-sectional area so that the first conducting plate 3 can penetrate therethrough, and corresponds to the height position of the through hole 48. A terminal (not shown) of the current sensor 38 is provided inside the sensor box 39.

Then, by penetrating the through hole 48 through the first conducting plate 3, the terminals of the current sensor 38 are pressed against the first conducting plate 3 to electrically connect the first conducting plate 3 and the current sensor 38. It is designed to be electrically connected.

Next, the procedure of assembling the current sensor 38 into the fuse box body 1 will be described. First, the first conducting plate 3 is penetrated through the through hole 48 of the sensor box 39, and the terminals of the current sensor 38 are connected. The first conductive plate 3 is electrically connected.

In this state, when the engaging convex portion 47 of the sensor box 39 is directed toward the engaging concave portion 45 side of the fuse box main body 1 and the lower end portion of the sensor box 39 is inserted into the mounting concave portion 40, the support leg 39a is fitted. The head 47a of the engaging projection 47 is engaged with the engaging recess 45, the neck 47b is engaged with the engaging groove 46, and the sensor box 39 is attached to the mounting recess 40. Incorporated.

Next, the mounting holes formed at both ends of the first conducting plate 3 protruding from the through hole 48 of the sensor box 39 are fitted into the bolts 5a, 5b, 5c, and these bolts 5a, 5b are fitted. , 5c are fastened with nuts 6a, 6b, 6c, respectively, so that the first conductive plate 3 is fixed to the substrate 2.

By fixing the first conducting plate 3 to the substrate 2 in this way, the sensor box 39 can be fixedly held to the fuse box body 1 by the first conducting plate 3. That is, since the first conducting plate 3 penetrates the through hole 48 of the sensor box 39 and both ends of the first conducting plate 3 are fixed to the substrate 2, the sensor box 39 has the first conducting plate 3. Unless the plate 3 is removed from the substrate 2, it will not come off from the fuse box body 1.

As described above, since the fuse box body 1 is integrally incorporated with the sensor box 39 accommodating the current sensor 38, the lead wire for electrically connecting the current sensor 38 and the fuse box body 1 to each other. No wiring is required, and the number of parts for fixing the current sensor 38 can be reduced.

[0030]

[Effect of device]

 As described above, according to the present invention, by integrally incorporating the current sensor in the fuse box body, the number of mounting parts for mounting the current sensor can be reduced, and the wiring of the current sensor can be reduced. It is unnecessary, there is no fear of disconnection, etc., and reliability and installation workability are improved, and there is an effect that cost can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view showing a fuse box for a vehicle according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

3 is a sectional view taken along the line BB of FIG.

FIG. 4 is a plan view showing a conventional vehicle fuse box.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Fuse box main body, 3 ... 1st conduction plate, 8 ... 2nd conduction plate, 12 ... 3rd conduction plate, 20 ... 4th conduction plate, 21 ... 5th conduction plate, 22 ... 6th Conductive plate, 38 ...
Current sensor.

Claims (1)

[Scope of utility model registration request] 1. A fuse box main body to which a plurality of fuses are attached, a bus member provided in the fuse box main body for electrically connecting the fuses to each other, and a bus member connected to the bus member to conduct the bus member. In a fuse box for a vehicle comprising a current sensor for measuring a current value, the vehicle is characterized in that the current sensor is incorporated inside the fuse box main body, and the current sensor and the bus member are electrically connected. Fuse box for.