JP7512337B2 - Terminal block cover and vehicle - Google Patents

Description

The present invention relates to a terminal block cover and a vehicle.

2. Description of the Related Art Vehicles such as saddle-ride vehicles are equipped with various electrical components, and the electrical components are electrically connected to each other using wiring components.
This type of wiring component includes terminal fittings and terminal blocks that are connected to circuit boards, etc. A terminal fitting is known that has a terminal body that is bolted to the vehicle body, a plurality of terminal connection parts extending from the terminal body, and engagement walls that protrude upward on both sides of the terminal connection parts (see Patent Document 1). A terminal block is known that has a wiring arrangement plate with a large number of lead wire insertion holes drilled therein, and a long groove that fits and supports the wiring arrangement plate, and is fixed to a mounting plate (see Patent Document 2).

JP 2017-199650 A Japanese Utility Model Application Publication No. 63-004069

In the configurations described in Patent Documents 1 and 2, when fastening the terminal fittings or the terminal block, stress acts in a vertical direction on the board, etc. From the viewpoint of protecting the board and the components on the board, it is desirable that stress not act in the vertical direction on the board.
The present invention has been made in consideration of the above-mentioned circumstances, and aims to avoid a situation in which excessive force is applied to a board when a terminal block cover provided around the terminal block is fastened.

In a terminal block cover provided around a terminal block connected to a terminal fixed to a substrate, the terminal block has a terminal fastening portion fastened to the terminal and a wiring connection portion to which wiring is connected, and the terminal block cover has a terminal block cover fastening portion fastened to a fixed object, and the fastening direction of the terminal block cover fastening portion is different from the fastening direction of the terminal fastening portion.

When fastening the terminal block cover around the terminal block, excessive force is prevented from being applied to the board.

FIG. 2 is a diagram showing the rear of a vehicle equipped with an electrical equipment unit. 2 is a circuit diagram including an electrical unit 10. FIG. FIG. 2 is a diagram showing an electrical unit together with wiring and connection objects. FIG. FIG. 2 is a cross-sectional view of the terminal block together with the surrounding configuration. FIG. FIG. FIG. 8 is a perspective view showing the terminal block cover from a different direction from that in FIG. 7 . FIG. 13 is a diagram showing a state in which wiring is connected to the wiring connection portion.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An electrical unit 10 having a terminal block cover according to an embodiment of the present invention will now be described with reference to the drawings.
Fig. 1 is a diagram showing the rear of a vehicle 100 equipped with an electrical unit 10. Fig. 2 is a circuit diagram including the electrical unit 10. Fig. 3 is a diagram showing the electrical unit 10 together with wiring 5 and connection objects 6. Fig. 4 is a perspective view of the electrical unit 10. In the drawings, the symbol FR indicates the front of the vehicle body, the symbol UP indicates the upper side of the vehicle body, and the symbol LH indicates the left side of the vehicle body. The symbol LC in Fig. 3 is the widthwise center line of the vehicle 100.
4 shows an X-axis, a Y-axis, and a Z-axis which are orthogonal to one another in a three-dimensional space. The Z-axis direction indicates the thickness direction (which may also be called the height direction) of the electrical unit 10, the X-axis direction indicates the longitudinal direction of the electrical unit 10, and the Y-axis direction indicates the lateral direction of the electrical unit 10. When the electrical unit 10 is mounted, the X-axis direction corresponds to the front-rear direction of the vehicle 100, and the Y-axis direction corresponds to the vehicle width direction.

The vehicle 100 is an electric motorcycle, and FIG. 1 shows a body frame 101, a passenger seat 102, wheels (only the rear wheel 103, which is the drive wheel, is shown in FIG. 1), left and right passenger steps 104, a battery 105 located below the front part of the passenger seat 102, a rear fender 106 that covers the upper part of the rear wheel 103, and a rear cushion 107. The body frame 101 has a rear frame 101A that extends below the passenger seat 102 and above the rear wheel 103, and the electrical unit 10 is supported by the rear frame 101A.

The electrical unit 10 is disposed below the passenger seat 102 and above the rear fender 106, so that rainwater is prevented from adhering from above, and rainwater and the like splashed from the rear wheel 103 is prevented from adhering to the electrical unit 10.
In this configuration, the electrical unit 10 is disposed at an angle when viewed from the side of the vehicle body, and even if rainwater or the like adheres to the electrical unit 10, it can quickly flow off to the outside of the electrical unit 10. Fig. 1 shows a case in which the electrical unit 10 is disposed in a front-down position (a housing 21, described later, is disposed in a front-down position), but this position is not limiting and the electrical unit 10 may be disposed at an angle with respect to a horizontal plane.

The electrical unit 10 is a component that functions as a power conversion device, and as shown in FIGS. 2 and 3 , is electrically connected to a connection target 6 that includes a battery 105 and a rotating electrical machine 110 .
The battery 105 is an energy source for the vehicle, and is, for example, a lithium-ion battery. The rotating electric machine 110 is a motor for driving the vehicle, and more specifically, is a three-phase AC brushless DC motor having three-phase stator windings SU, SV, and SW. The rotating electric machine 110 generates driving force for the vehicle by using electric power supplied from the battery 105 via the electrical equipment unit 10. Note that regenerative braking may be achieved by operating the rotating electric machine 110 as a generator, and the generated electric power may be used as operating power for each component or as charging power for the battery 105.

As shown in Figures 3 and 4, the electrical unit 10 includes electronic components such as multiple switching elements 11, and these electronic components form the power conversion circuit shown in Figure 2. Each switching element 11 is, for example, a transistor such as an IGBT (Insulated Gate Bipolar Transistor) or a MOSFET (Metal Oxide Semiconductor Field Effect Transistor).

As shown in Figures 2 and 4, the multiple switching elements 11 function as a Hi-side U-phase transistor UH, a Lo-side U-phase transistor UL, a Hi-side V-phase transistor VH, a Lo-side V-phase transistor VL, a Hi-side W-phase transistor WH, and a Lo-side W-phase transistor WL.
The electronic components included in the electrical unit 10 include a capacitor 13 and a diode 14 .

Capacitor 13 functions as a capacitor that smoothes out voltage fluctuations that occur when each switching element 11 is switched on and off, and may be, for example, a number of smoothing capacitors. Diode 14 functions as a freewheeling diode connected in the forward direction from the emitter to the collector between the collector and emitter of each transistor UH, UL, VH, VL, WH, and WL.

The collectors of the Hi-side transistors UH, VH, and WH are connected to the positive terminal Pa. The emitters of the Lo-side transistors UL, VL, and WL are connected to the negative terminal Na. In each of the three phases, the emitters of the Hi-side transistors UH, VH, and WH and the collectors of the Lo-side transistors UL, VL, and WL are connected to the three-phase terminals Ua, Va, and Wa. The three-phase terminals Ua, Va, and Wa are connected to the three-phase stator windings SU, SV, and SW of the rotating electric machine 110. The capacitor 13 is connected between the positive terminal Pa and the negative terminal Na.

The electrical unit 10 controls the operation of the rotating electric machine 110 by switching the transistor pairs of each phase on (conducting)/off (blocking) based on a gate signal, which is a switching command input to the gates of each transistor UH, VH, WH, UL, VL, and WL.
For example, when the rotating electric machine 110 is powered, the electrical equipment unit 10 converts DC power input from the positive electrode terminal Pa and the negative electrode terminal Na into three-phase AC power and supplies it to the rotating electric machine 110. In this case, the electrical equipment unit 10 generates a rotational driving force by sequentially commutating the current to the three-phase stator windings SU, SV, and SW of the rotating electric machine 110.

During regeneration of the rotating electric machine 110, the electrical equipment unit 10 converts the three-phase AC power input from each of the three phase terminals Ua, Va, and Wa into DC power by driving the transistor pairs of each phase on (conducting) and off (disconnecting) in synchronization with the rotation of the rotating electric machine 110. The electrical equipment unit 10 can charge the battery 105 with the DC power converted from the three-phase AC power.

FIG. 5 is a diagram showing a cross section (cross section in the YZ plane) of the terminal block 51A together with the surrounding structure.
As shown in FIGS. 4 and 5 , the electrical unit 10 includes a housing 21 , and a first board 31 and a second board 41 arranged in the housing 21 .
The housing 21 is formed in a rectangular parallelepiped box shape that is open at the top (one side in the Z direction), and includes a bottom portion 22 having a rectangular plate shape, and side walls 23 rising upward from four sides of the bottom portion 22. The bottom portion 22 and the side walls 23 each have a thickness. A heat dissipation fin 24 is provided on the lower surface (the other side in the Z direction) of the bottom portion 22. An insulating molded resin is poured into the inside of the housing 21, and a molded surface 22T, which is the surface of the molded resin, faces the bottom portion 22.

A first substrate 31 is disposed on the upper surface of the bottom surface portion 22, and a second substrate 41 is disposed above the first substrate 31. The first substrate 31 and the second substrate 41 are formed as substrates having a rectangular shape in a plan view, and are disposed vertically spaced apart within the housing 21. In this case, each of the four sides of the first substrate 31 and the second substrate 41 is disposed parallel to each side wall 23. The bottom surface portion 22 and the mold surface 22T extend parallel to the first substrate 31.
In this description, when distinguishing between the side walls 23, the pair of side walls 23 arranged along the opposing long sides of each substrate 31, 41 will be referred to as the "first side wall 23A and the second side wall 23B," and the pair of side walls 23 arranged along the opposing short sides of each substrate 31, 41 will be referred to as the "third side wall 23C and the fourth side wall 23D."

FIG. 6 is a diagram showing the first substrate 31. As shown in FIG.
The first substrate 31 includes a plurality of (five in this configuration) cylindrical terminals 33 that stand vertically toward the second substrate 41. Although not shown, the lower portion of each terminal 33 is fixed to the first substrate 31 by a method such as soldering. These terminals 33 correspond to the three-phase terminals Ua, Va, Wa, the positive terminal Pa, and the negative terminal Na, respectively.
In this embodiment, a plurality of terminals 33 (hereinafter, indicated by reference numeral 33A) serving as the respective phase terminals Ua, Va, and Wa are provided, as shown in Fig. 4, at positions close to the side wall 23A located on one side of the opposing long sides of the first substrate 31, among the side walls 23A to 23D of the housing 21. Moreover, these terminals 33A are arranged at intervals along the side wall 23A.

As shown in Figures 4 and 5, the tip (upper part) of each terminal 33A is connected to a plurality of terminal blocks 51 (denoted by appropriate reference numerals 51A) located above the second substrate 41. Each terminal block 51 has a terminal fastening portion 52 (a portion having a through hole in this configuration) that is fastened to the terminal 33A, and a wiring connection portion 53 (a portion having a cylindrical protrusion in this configuration) to which the wiring 5 is connected.

5, the connection between each terminal block 51A and each terminal 33A is performed by inserting a fastening member 55 from above each terminal block 51A in the -Z direction and fastening the fastening member 55 to each terminal 33A. The fastening member 55 is a fastening member that is fastened using a tool, and a wide variety of known fastening bolts and the like can be used.
In addition, since the terminal fastening portion 52 and the wiring connection portion 53 associated with each terminal 33A are located in the vicinity of the terminal 33A, the terminal fastening portion 52 and the wiring connection portion 53 are also provided in a position close to the first side wall 23A, which is located on one side of the opposing sides of the first substrate 31, among the side walls 23 of the housing 21.

4, a plurality of terminals 33 (hereinafter, indicated by reference numeral 33B) that become electrode terminals Pa and Na are provided at positions close to side wall 23C, which is located on one side of opposing short sides of first substrate 31, among side walls 23A to 23D of housing 21. These terminals 33B are disposed at intervals along side wall 23C.
The tips of these terminals 33B are respectively connected to a plurality of terminal blocks 51 (denoted by appropriate reference numerals 51B) located above the second substrate 41. Like the terminal block 51, the terminal block 51B also includes a terminal fastening portion 52 fastened to the terminal 33B and a wiring connection portion 53 to which the wiring 5 is connected, and the terminal block 51B and each terminal 33B are connected by fastening a fastening member 55 (not shown) to the terminal fastening portion 52 from above in the −Z direction.

A terminal block cover 61 is provided around each of the terminal blocks 51A and 51B. The terminal block cover 61 provided on each of the terminal blocks 51A is indicated by the reference symbol 61A. The terminal block cover 61 provided on each of the terminal blocks 51B is indicated by the reference symbol 61B.

Since the terminal block cover 61A and the terminal block cover 61B are formed to have the same shape, the following description will focus on the terminal block cover 61A, and redundant description of the terminal block cover 61B will be omitted.
7 and 8 are views of the terminal block cover 61A viewed from different directions.
The terminal block cover 61A integrally includes a base 62 fixed to the terminal block 51A and a wall portion 63 extending from the base 62. The base 62 includes a guide portion 62B provided around the wiring connection portion 53.

The guide portion 62B includes a wiring mounting base 62B1 extending around the wiring connection portion 53, and a guide wall 62B2 protruding upward from the wiring mounting base 62B1 at a distance in the circumferential direction of the wiring connection portion 53.
FIG. 9 shows a state in which the wiring 5 is connected to the wiring connection portion 53 .
9, the wiring 5 connected to the wiring connection portion 53 can be placed on the wiring placement base 62B1 when the wiring 5 is drawn out in a plurality of directions d1, d2, d3, and d4. The guide wall 62B2 is formed in a guide shape that guides the wiring 5 in each of the plurality of directions d1, d2, d3, and d4.

In other words, the guide portion 62B guides the wiring 5 connected to the wiring connection portion 53 so that it can be pulled out in multiple directions d1 to d4. Therefore, when connecting the wiring 5, the routing direction of the wiring 5 can be selected according to the surrounding conditions, etc.

Next, the wall portion 63 of the terminal block cover 61A will be described.
As shown in FIG. 7, the wall portion 63 extends from the base portion 62 in a direction perpendicular to the base portion 62 (-Z direction). A hole 63H is formed in the wall portion 63, through which the fastening member 57 passes. The fastening member 57 passes through the hole 63H, and the fastening member 57 is fastened to the first side wall 23A of the housing 21, thereby fixing the terminal block cover 61A to the housing 21. As shown in FIG. 7 and FIG. 8, two holes 63H are provided in each wall portion 63 with an interval in the X direction, and each terminal block cover 61A is fixed to the housing 21 by the two fastening members 57. For convenience of explanation, one of the two fastening members 57 is omitted in FIG. 7 and FIG. 8.

In other words, the hole 63H functions as a terminal block cover fastening portion for fastening the terminal block cover 61A to the housing 21, which is the object to be fixed. Since the hole 63H is provided at two locations spaced apart, rotation of the terminal block cover 61A around the fastening member 57 is restricted, and the terminal block cover 61A can be accurately positioned on the housing 21. Note that a wide variety of known fastening bolts, etc., can be used as the fastening member 57.

In this configuration, as shown in FIG. 5, the fastening direction Y of the hole 63H (corresponding to the axial direction of the fastening member 57) is different from the fastening direction -Z of the terminal fastening portion 52 (corresponding to the axial direction of the fastening member 55). Therefore, when fastening the terminal block cover 61A to the housing 21, it is possible to prevent a strong force from acting in the fastening direction of the terminal fastening portion 52, and to prevent an excessive force from acting on the first board 31 from the terminal block cover 61A.

In addition, the fastening direction -Z of the terminal fastening portion 52 is perpendicular to the fastening direction Y of the hole portion 63H, so compared to when they are not perpendicular, it is possible to more effectively prevent a strong force from acting in the fastening direction of the terminal fastening portion 52, and therefore to more effectively prevent an excessive force from acting on the first board 31.

The other terminal block cover 61B also has a wall portion 63 extending from the base portion 62 in a direction perpendicular to the base portion 62 (-Z direction) and a hole portion 63H provided in the wall portion 63, and the wall portion 63 is fastened to the third side wall 23C by a fastening member 57. This makes it possible to prevent a strong force from acting in the fastening direction of the terminal fastening portion 52 of the terminal block 51B when fastening the terminal block cover 61B to the housing 21, or a force that breaks the connection between the terminal 33 and the first board 31, and to prevent an excessive force from acting on the first board 31 from the terminal block cover 61B.

3, the terminal block 51A is provided so as to overlap the side wall 23 (first side wall 23A) of the housing 21 when viewed from above the housing 21. A portion of the terminal block cover 61A is also provided so as to overlap the side wall 23 (first side wall 23A) of the housing 21 when viewed from above the housing 21. This allows the terminal block 51A and the terminal block cover 61A to be located close to the side wall 23.
Here, the first side wall 23A corresponds to a side wall located on one side of the opposing sides of the first substrate 31. Since the multiple terminal block covers 61A and terminal blocks 51A are provided on the first side wall 23A located on one side of the opposing sides of the first substrate 31, the terminal block covers 61 can be fastened to the housing 21 in a direction different from the terminal fastening portions 52 by utilizing the side surface of the housing 21.

As shown in FIG. 4, the other terminal block cover 61B and terminal block 51B are provided only on the third side wall 23C located on one side of the opposing sides of the first board 31. Therefore, each wire 5 connected to each terminal block 51B can be routed from the common third side wall 23C side, improving the freedom of layout of each wire 5. The other terminal block cover 61B and terminal block 51B are provided so as to overlap the third side wall 23C when viewed from above the housing 21.

An example of the arrangement of the above-described electrical unit 10 in the vehicle 100 will now be described.
3, the electrical unit 10 is disposed with its longitudinal direction aligned with the fore-and-aft direction of the vehicle 100, and is disposed above the rear wheels 103. In addition, by disposing the electrical unit 10 offset to one side, left or right, with respect to the vehicle width center line LC, the first side wall 23A of the electrical unit 10 located on the right side of the vehicle is spaced further away from the rear wheels 103 in the vehicle width direction than the second side wall 23B located on the left side of the vehicle.

This allows the surface of the housing 21 of the electrical unit 10 facing the rear wheel 103 (corresponding to the back surface) to be cooled by utilizing the air around the rear wheel 103, while preventing water, sand, etc. that is scattered from the rear wheel 103 from adhering to the terminal block 51A or the terminal block cover 61A.
Furthermore, since the surface of the housing 21 facing the rear wheel 103 is provided with the fins 24 for dissipating heat, the electrical unit 10 can be cooled efficiently.

As shown in FIG. 3, the wires 5 extending from each of the wire connection parts 53 of the terminal blocks 51A and 51B are routed to the second side wall 23B, which is the other side wall located on the other side of the opposing side of the first substrate 31, from the first side wall 23A, and are collected in a bundle. Therefore, as shown in FIG. 3, it is easy to collect the wires 5 from each wire connection part 53 in a bundle without bending them sharply.

In addition, in the vehicle 100, the connection object 6 consisting of the battery 105 and the rotating electric machine 110 is disposed at a position offset to the right side of the vehicle body with respect to the vehicle width center line LC. In this configuration, the position where each wire 5 of the electrical unit 10 is bundled is on the opposite side of the vehicle width direction from the connection object 6 with respect to the vehicle width center line LC. Therefore, as shown in FIG. 3, each wire 5 from the electrical unit 10 can be easily connected to the connection object 6 without being bent sharply.

As described above, in this embodiment, the terminal block 51 has a terminal fastening portion 52 fastened to the terminal 33 and a wiring connection portion 53 to which the wiring 5 is connected. The terminal block cover 61 (corresponding to 61A and 61B) has a hole portion 63H that functions as a terminal block cover fastening portion fastened to the housing 21 to which it is fixed. As shown in FIG. 5, the fastening direction of the hole portion 63H is different from the fastening direction of the terminal fastening portion 52. With this configuration, when the terminal block cover 61 is fastened to the housing 21, it is possible to avoid a situation in which a force acts in the fastening direction of the terminal fastening portion 52 (corresponding to the vertical direction of the first board 31) or a situation in which a force that breaks the connection between the terminal 33 and the first board 31 acts, and it is possible to avoid a situation in which an excessive force acts on the first board 31.

The terminal block cover 61 has a guide portion 62B that guides the wiring 5 connected to the wiring connection portion 53 so that it can be routed in multiple directions. With this configuration, the guide portion 62B can guide the wiring 5 in multiple directions on the terminal block cover 61, making the routing work easier.

The housing 21 includes a bottom surface portion 22 having a rectangular plate shape and side walls 23 rising upward from the four sides of the bottom surface portion 22, and the first substrate 31 is disposed parallel to the bottom surface portion 22. The terminal block 51 is provided parallel to the bottom surface portion 22. By providing the terminal block 51 parallel to the bottom surface portion 22, the terminal block 51 can be provided in a large space (on the bottom surface portion 22 or the molded surface 22T) of the housing 21, improving the degree of freedom in handling the wiring 5 connected to the terminal block 51. The position of the terminal block 51 may be appropriately changed. For example, the position of the terminal block 51 may be appropriately changed within a range of a position parallel to the bottom surface portion 22.
In addition, when viewed from above the housing 21, the terminal block 51 is provided so as to overlap the side wall 23 of the housing 21. This allows the terminal block cover 61 to be disposed in a location close to the side wall 23, and allows the terminal block cover 61 to be fastened to the housing 21 in a direction different from that of the terminal fastening portion 52 by utilizing the side surface of the housing 21.

The terminal block covers 61 also have holes 63H that are fastened only to the side walls 23, and the fastening direction of the holes 63H is different from the fastening direction of the terminal fastening parts 52. With this configuration, as shown in FIG. 3, the wiring 5 extending from each of the wiring connection parts 53 is bundled together on the opposite side of the vehicle width direction to the connection object 6, based on the vehicle width center line LC of the vehicle 100.

This configuration not only prevents excessive force from being applied from the terminal block cover 61 to the first board 31 when the terminal block cover 61 is fastened to the housing 21, but also makes it easier to gather the wiring 5 into a bundle without bending it abruptly, and to connect the bundled wiring 5 to the connection target 6 without bending it abruptly.

Moreover, the terminal block 51 is provided on the opposite side of the housing 21 from the rear wheels 103 which are the wheels of the vehicle 100. With this configuration, the housing 21 is cooled by utilizing the air around the rear wheels 103, and it is possible to prevent water, sand, etc., scattered from the rear wheels 103 from adhering to the terminal block 51A or the terminal block cover 61A.
Furthermore, as shown in FIG. 1, the housing 21 is disposed at an angle to the horizontal plane, so that even if moisture adheres to the housing 21, it can be quickly discharged to the outside of the housing 21.

The above-described embodiment shows one aspect of the present invention, and the present invention is not limited to the above-described embodiment. For example, the electrical unit 10 includes the first board 31 and the second board 41, but the electrical unit 10 may include only the first board 31. Furthermore, the shape of each part of the electrical unit 10 may be changed as appropriate, and for example, the terminal block cover 61A and the terminal block cover 61B do not have to have the same shape.

Although the present invention has been described as being applied to an electrical unit 10 mounted on a vehicle 100 shown in FIG. 1, the present invention may also be applied to an electrical unit mounted on other vehicles. The other vehicles are not limited to electric motorcycles, but may be, for example, non-electric motorcycles, saddle-type vehicles including three-wheeled vehicles and four-wheeled vehicles. Although the present invention has been described as being applied to a peripheral structure including a terminal block cover 61 used in an electrical unit mounted on a vehicle, the present invention may also be applied to a peripheral structure including a terminal block cover 61 used in an electrical unit not mounted on a vehicle.

[Configuration supported by the above embodiment]
The above embodiment supports the following configurations.

(Configuration 1) A terminal block cover that is provided around a terminal block that is connected to a terminal fixed to a substrate, the terminal block having a terminal fastening portion that is fastened to the terminal and a wiring connection portion to which wiring is connected, the terminal block cover having a terminal block cover fastening portion that is fastened to a fixed object, and the fastening direction of the terminal block cover fastening portion is different from the fastening direction of the terminal fastening portion.
According to this configuration, it is possible to prevent excessive force from being applied to the board when fastening the terminal block cover provided around the terminal block.

(Configuration 2) The terminal block cover according to configuration 1, characterized in that the terminal block cover has a guide portion that guides the wiring connected to the wiring connection portion so that the wiring can be routed in a plurality of directions.
According to this configuration, the guide portion can guide the wiring in a plurality of directions on the terminal block cover, making wiring work easier.

(Configuration 3) The object to be fixed is a housing in which the board is placed, the housing (21) has a bottom portion (22) having a rectangular plate shape and side walls (23) rising upward from the four sides of the bottom portion (22), the board (31) is arranged parallel to the bottom portion (22), and the terminal block (51) is arranged parallel to the bottom portion (22), a terminal block cover as described in configuration 1 or 2, characterized in that
This configuration improves the freedom of layout of the wires connected to the terminal block.

(Configuration 4) The terminal block cover according to configuration 3, wherein the terminal block is arranged to overlap a side wall of the housing when viewed from above the housing.
According to this configuration, the terminal block cover can be disposed in a position close to the side wall, and the terminal block cover can be fastened to the housing in a different direction from the terminal fastening portion by utilizing the side surface of the housing.

(Configuration 5) A vehicle equipped with an electrical unit connected to a connection object via a plurality of wirings, the electrical unit comprising a circuit board, a plurality of terminal blocks fastened to terminals provided on the board, a terminal block cover provided around the terminal blocks, and a housing in which the board is placed, the plurality of terminal blocks each having a terminal fastening portion fastened to the terminal and a wiring connection portion to which one end of the wiring is connected, the terminal block cover having a terminal block cover fastening portion fastened only to a side wall of the housing (21), the fastening direction of the terminal block cover fastening portion is different from the fastening direction of the terminal fastening portion, and the wiring extending from each of the wiring connection portions is gathered in a bundle on the opposite side of the vehicle width direction to the connection object, based on the vehicle width center line of the vehicle.
This configuration not only prevents excessive force from being applied to the board when the terminal block cover is fastened, but also makes it easier to gather the wiring into a bundle without bending it abruptly, and to connect the bundled wiring to the connection object without bending it abruptly.

(Configuration 6) The vehicle according to configuration 5, wherein the terminal block is provided on the opposite side of the housing from the wheels of the vehicle.
With this configuration, the surface of the housing facing the wheel can be cooled by utilizing the air around the wheel, while preventing water, sand, etc., scattered from the wheel from adhering to the terminal block or terminal block cover.

(Configuration 7) The vehicle according to configuration 5 or 6, wherein the housing is disposed obliquely with respect to a horizontal plane.
With this configuration, even if moisture adheres to the housing, it can be quickly discharged to the outside of the housing.

5 Wiring 6 Connection target 10 Electrical unit 11 Switching element 13 Capacitor 14 Diode 21 Housing (housing)
23 Side wall 23A First side wall (predetermined side wall)
23B: second side wall; 23C: third side wall (predetermined side wall);
23D Fourth side wall 31 First board 33 Terminal 41 Second board 51, 51A, 51B Terminal block 52 Terminal fastening portion 55, 57 Fastening member 61, 61A, 61B Terminal block cover 62B Guide portion 63H Hole portion (terminal block cover fastening portion)
100 Vehicle 103 Rear wheel (wheel)
105 Battery 110 Rotating motor

Claims (7)

A terminal block cover is provided around a terminal block (51) connected to a terminal (33) fixed to a substrate (31),
The terminal block (51) includes a terminal fastening portion (52) to be fastened to the terminal (33);
A wiring connection portion (53) to which the wiring (5) is connected,
The terminal block cover is
A terminal block cover fastening portion (63H) is provided to be fastened to a fixed object (21),
A terminal block cover, characterized in that a fastening direction of the terminal block cover fastening portion (63H) is different from a fastening direction of the terminal fastening portion (52). The terminal block cover according to claim 1, characterized in that it has a guide portion (62) that guides the wiring (5) connected to the wiring connection portion (53) so that it can be routed in multiple directions. The fixed object (21) is a housing in which the substrate (31) is disposed,
The housing (21) includes a bottom surface portion (22) having a rectangular plate shape and side walls (23) rising upward from four sides of the bottom surface portion (22),
The substrate (31) is disposed parallel to the bottom surface portion (22),
3. The terminal block cover according to claim 1, wherein the terminal block (51) is provided parallel to the bottom surface portion (22). The terminal block cover according to claim 3, characterized in that, when viewed from above the housing (21), the terminal block (51) is arranged to overlap a side wall (23) of the housing (21). In a vehicle equipped with an electrical unit (10) connected to a connection target (6) via a plurality of wirings (5),
The electrical unit (10) includes a board (31), a plurality of terminal blocks (51) fastened to terminals (33) provided on the board (31), a terminal block cover (61) provided around the terminal blocks (51), and a housing (21) in which the board (31) is disposed,
The plurality of terminal blocks (51) each have a terminal fastening portion (52) fastened to the terminal (33);
and a wiring connection portion (53) to which one end of the wiring (5) is connected,
The terminal block cover (61) includes a terminal block cover fastening portion (63H) that is fastened only to the side wall (23) of the housing (21),
The fastening direction of the terminal block cover fastening portion (63H) is different from the fastening direction of the terminal fastening portion (52),
The wiring (5) extending from each of the wiring connection portions (53) is collected in a bundle on the opposite side of the vehicle width direction to the connection object (6) based on a vehicle width center line (LC) of the vehicle. The vehicle according to claim 5, characterized in that the terminal block (51) is provided on the opposite side of the housing (21) from the wheels (103) of the vehicle (100). The vehicle according to claim 5 or 6, characterized in that the housing (21) is disposed at an angle to a horizontal plane.

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