circuit components

Abstract

To provide a circuit constituent that enables a component accommodated in a case to be easily replaced.SOLUTION: A circuit constituent 10 comprises a main body part 11 and an electrical component device 50 fixed to the main body part 11. In the circuit constituent 10, the main body part 11 has a first bus bar (a conductive path bus bar 14), a second bus bar (the conductive path bus bar 14), and a case 12 for accommodating the first bus bar and the second bus bar. A lid 13 of the case 12 has a first opening 13C into which the electrical component device 50 can be inserted. The electrical component device 50 has relays 51C and 51D (electrical components), a one end side bus bar 53 installed on one end of respective relays 51C and 51D, and an other end side bus bar 54 installed on the other end of respective relays 51C and 51D. The one end side bus bar 53 is fixed to the first bus bar by means of a first screw B1. The other end side bus bar 54 is fixed to the second bust bar by means of a second screw B2.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a circuit configuration.

Background Art

[0002] Patent Document 1 discloses an electrical connection box that houses a plurality of electronic components in a housing.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When detaching and attaching the electronic components of this electrical connection box, it is necessary to remove the upper cover, which causes trouble.[[ID=3--6]]

[0005] The present disclosure has been made based on the above circumstances, and an object thereof is to provide a circuit configuration in which components housed in a case can be easily replaced.

Means for Solving the Problems

[0006] A circuit configuration including a main body portion and an electrical component device fixed to the main body portion, where the main body portion has a first bus bar, a second bus bar, and a case that houses the first bus bar and the second bus bar, where the case has an opening into which the electrical component device can be inserted, and the electrical component device has an electrical component, a one-end side bus bar provided at one end of the electrical component, and a the other-end side bus bar provided at the other end of the electrical component. The busbar at one end is fixed to the first busbar by a first screw, The other end busbar is fixed to the second busbar by a second screw, forming a circuit configuration. [Effects of the Invention]

[0007] According to this disclosure, the components housed in the case can be easily replaced. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is an exploded perspective view of the circuit configuration of Embodiment 1. [Figure 2] Figure 2 is a perspective view showing the case body with the conductive busbars attached. [Figure 3] Figure 3 is a perspective view of the lid. [Figure 4] Figure 4 is a perspective view showing the case body with the lid attached, and the fuse, precharge relay, resistor, and current sensing unit mounted on the lid. [Figure 5] Figure 5 is a perspective view showing electrical components. [Figure 6] Figure 6 is a perspective view showing the relay and the first insulating member. [Figure 7] Figure 7 is a plan view showing the first insulating member with the relay attached mounted to the case. [Figure 8] Figure 8 is a cross-sectional view taken along arrow AA in Figure 7. [Modes for carrying out the invention]

[0009] [Description of Embodiments in this Disclosure] First, the embodiments of this disclosure will be listed and described.

[0010] (1) A circuit configuration comprising a main body and an electrical component device fixed to the main body, The main body is, First bus bar and Second bus bar and a case for housing the first bus bar and the second bus bar; The case has an opening into which the electric component device can be inserted. The electric component device includes electric components, a first end-side bus bar provided at one end of the electric component, and a second end-side bus bar provided at the other end of the electric component. The first end-side bus bar is fixed to the first bus bar by a first screw. The second end-side bus bar is fixed to the second bus bar by a second screw. A circuit configuration.

[0011] In the circuit configuration of (1), since the electric component can be attached to the case through the opening, it is not necessary to perform operations such as opening the case.

[0012] In (2), the first end-side bus bar is clamped together with the first bus bar by the first screw. The second end-side bus bar is clamped together with the second bus bar by the second screw. The circuit configuration according to (1).

[0013] In the circuit configuration of (2), conduction between the first end-side bus bar and the first bus bar, and conduction between the second end-side bus bar and the second bus bar can be ensured.

[0014] In (3), the electric component device has an insulating member that covers at least a part of the electric component from the outside of the case in a state of being fixed to the main body. The circuit configuration according to (1).

[0015] In the circuit configuration of (3), the insulating member can make it difficult to touch the electric component.

[0016] In (4), the insulating member has a first exposure hole for exposing the head of the first screw to the outside and a second exposure hole for exposing the head of the second screw to the outside. The circuit configuration according to (3).

[0017] The circuit component in (4) allows for the attachment and detachment of the first screw and the second screw through the first exposed hole and the second exposed hole.

[0018] (5) The opening has a first opening and a second opening, The insulating member comprises a first insulating member and a second insulating member. The aforementioned electrical component comprises a first electrical component and a second electrical component. The first insulating member covers the first electrical component inserted into the first opening from the outside. The circuit configuration according to (3), wherein the second insulating member covers the second electrical component inserted into the second opening from the outside.

[0019] The circuit configuration in (5) allows one electrical component to be covered with an insulating material while the other electrical component is exposed, thus allowing electrical components that do not need to be exposed to be covered while electrical components that do need to be exposed are exposed.

[0020] (6) The circuit configuration according to (3), wherein the electrical components are fixed to the insulating member by a third screw.

[0021] The circuit configuration of (6) allows for handling of electrical components by gripping an insulating material without directly touching the electrical components.

[0022] (7) The circuit component according to (3), wherein the insulating member has one or more recesses or through holes that serve as gripping points.

[0023] The circuit configuration in (7) makes it easier to attach and detach the insulating material to the case.

[0024] [Details of the embodiments of this disclosure] <Embodiment 1> A circuit configuration 10 of Embodiment 1, which embodies the present disclosure, will be described with reference to Figures 1 to 8. In Embodiment 1, "upper side" and "lower side" are represented by "U" and "D" in the figures, respectively.

[0025] The circuit configuration 10 is mounted in a vehicle (not shown), such as an electric vehicle or a hybrid vehicle, and supplies power from a power source to a load. As shown in Figure 1, the circuit configuration 10 comprises a main body 11 and an electrical component device 50 assembled and housed in the main body 11.

[0026] [Main Unit Configuration] The main body 11 comprises a case 12 and a conductive busbar 14. The case 12 is made of, for example, an insulating synthetic resin. The case 12 comprises a case body 16 and a lid 13. As shown in Figure 2, the case body 16 has a bottom wall 16A. Multiple bosses 16C protruding upward are provided on the bottom wall 16A. A nut N1, such as an insert nut, is embedded in the upper end of each boss 16C with the axis of the screw hole oriented in the vertical direction.

[0027] The lid 13 is made of, for example, an insulating synthetic resin. As shown in Figure 3, the lid 13 has a closing wall 13A and an opening 13B that penetrates the closing wall 13A in the thickness direction. The opening 13B has one first opening 13C and two second openings 13D.

[0028] The lid 13 is positioned such that its closing wall 13A overlaps the bottom wall 16A from above (see Figure 4). For example, the lid 13 is fixed to the case body 16 by a snap fit or screws. In a plan view from above of the lid 13 attached to the case body 16, each boss 16C is positioned within the formation range of the first opening 13C (see Figure 4). The two second openings 13D are formed adjacent to the first opening 13C.

[0029] The conductive busbar 14 is a component housed within the case 12 and constitutes a conductive path between the power supply and the load. The conductive busbar 14 is formed by press-forming a flat metal plate. As shown in Figure 2, the conductive busbar 14 is arranged within the case 12 in a divided state. Each conductive busbar 14 is prevented from displacing relative to the bottom wall 16A by a plurality of guide portions 16B provided on the bottom wall 16A. The conductive busbar 14 has a plurality of through holes H1 that penetrate in the thickness direction. A portion of the conductive busbar 14 is positioned to cover a nut N1 embedded in a boss 16C from above. The through holes H1 are arranged coaxially with the threaded holes of the nut N1.

[0030] [Configuration of electrical components and devices] As shown in Figure 1, the electrical component device 50 includes an electrical component 51, a precharge relay 61, a resistor 62, a current sensing unit 63, a busbar 53 on one end, a busbar 54 on the other end, and an insulating member 55. The electrical component 51 has a first electrical component 51A and a second electrical component 51B. The first electrical component 51A has a plurality of relays 51C and 51D. The second electrical component 51B has a plurality of fuses 51E and 51F. The insulating member 55 has a first insulating member 55A and a second insulating member 55B.

[0031] Relays 51C and 51D are, for example, mechanical relays. As shown in Figure 5, each of relays 51C and 51D has a pair of terminals 56 and 57, and switches between an allow state, which permits energization between the pair of terminals 56 and 57, and an interrupted state, which interrupts energization. Relays 51C and 51D are configured such that control to switch between the allow state and the interrupted state can be performed by a control unit (not shown).

[0032] The fuses 51E and 51F are, for example, thermal fuses. Each fuse 51E and 51F is provided with a flat-plate-shaped busbar 51G and 51H at one end, and a flat-plate-shaped busbar 51J and 51K at the other end. One fuse 51E and one fuse 51F are placed in the second opening 13D of the lid 13 attached to the case body 16 (see Figure 4).

[0033] One end busbar 51G of the fuse 51E is fastened together with one of the conductive busbars 14 to a nut N1 (see Figure 2) provided on the case body 16 using a fifth screw B5 (see Figure 4). The other end busbar 51J of the fuse 51E is fastened together with another conductive busbar 14, which is different from the one to which the one end busbar 51G is fastened, to a nut N1 (see Figure 2) provided on the case body 16 using a fifth screw B5 (see Figure 4). The conductive busbar 14 to which the one end busbar 51G is fastened is the first busbar, and the conductive busbar 14 to which the other end busbar 51J is fastened is the second busbar.

[0034] One end busbar 51H of the fuse 51F is fastened together with one of the conductive busbars 14 to a nut N1 (see Figure 2) provided on the case body 16 using a fifth screw B5 (see Figure 4). The other end busbar 51K of the fuse 51F is fastened together with another conductive busbar 14, which is different from the one to which the one end busbar 51H is fastened, to a nut N1 (see Figure 2) provided on the case body 16 using a fifth screw B5 (see Figure 4). The conductive busbar 14 to which the one end busbar 51H is fastened is the first busbar, and the conductive busbar 14 to which the other end busbar 51K is fastened is the second busbar.

[0035] The pre-charge relay 61, like relays 51C and 51D, is constructed using a mechanical relay. The pre-charge relay 61 is configured to be controlled by a control unit (not shown) to switch between an allowable state and an interrupted state. The resistor 62 is connected in series with the pre-charge relay 61. For example, the pre-charge relay 61 and the resistor 62 are arranged to rest on the cover 13 (see Figure 4), and their respective busbars 61A and 62A are configured to elastically contact the conductive path busbar 14.

[0036] The current detection unit 63 has, for example, a resistor and a differential amplifier, and is configured to output a value indicating the current flowing through the conductive busbar 14 (specifically, an analog voltage corresponding to the value of the current flowing through the conductive busbar 14) as a current value. One end of the current detection unit 63 is provided with a one-end busbar 63A, and the other end is provided with a other-end busbar 63B. The current detection unit 63 is positioned to rest on the lid 13 (see Figure 4). The one-end busbar 63A is fastened together with a fifth screw B5 to the conductive busbar 14, which is provided penetrating upward through the closing wall 13A of the lid 13 (see Figure 4). The other-end busbar 63B is separate from the one-end busbar 63A and is fastened together with a fifth screw B5 to the conductive busbar 14, which is provided penetrating upward through the closing wall 13A of the lid 13 (see Figure 4).

[0037] The busbar 53 at one end is formed by press-forming a flat metal plate. One end of the busbar 53 is electrically connected to each of the terminals 56 at one end of relays 51C and 51D by a sixth screw B6. An insertion hole H2 is formed at the other end of the busbar 53, penetrating in the direction of the plate thickness.

[0038] The other end busbar 54 is formed by press-forming a flat metal plate. One end of the other end busbar 54 is electrically connected to the terminal 57 on the other end of each relay 51C, 51D by a sixth screw B6. A through hole H2 is formed at the other end of the other end busbar 54, penetrating in the direction of the plate thickness.

[0039] In this disclosure, "electrically connected" preferably means a configuration in which the two connected objects are connected in a state of conduction (a state in which current can flow) such that the potentials of both objects are equal. However, the disclosure is not limited to this configuration. For example, "electrically connected" may mean a configuration in which the two connected objects are connected in a state in which they can conduct electricity while an electrical component is interposed between them.

[0040] The first insulating member 55A and the second insulating member 55B are made of, for example, an insulating synthetic resin. As shown in Figure 6, the outer shape of the first insulating member 55A is a flattened rectangular shape. The outer dimensions of the first insulating member 55A in a plan view from above are slightly smaller than the outer dimensions of the first opening 13C of the lid 13 (see Figure 7). The first insulating member 55A is provided with multiple protrusions 55G that project downward. A nut N2, such as an insert nut, is embedded at the lower end of each protrusion 55G with the axis of the screw hole oriented in the vertical direction.

[0041] As shown in Figure 7, the first insulating member 55A has two first exposed holes 55C, two second exposed holes 55D, two through holes 55E, and two screw insertion holes 55F formed through the plate thickness direction. Each of the first exposed holes 55C and the second exposed holes 55D has a rectangular outer shape and is arranged adjacent to each other in pairs.

[0042] The two through holes 55E are located in the center of the first insulating member 55A in a plan view from above. Each through hole 55E has a bottom wall 55H formed below the front wall 55J of the first insulating member 55A, and a connecting wall is provided rising from the outer edge of the bottom wall 55H, with the upper end of the connecting wall connecting to the front wall 55J. One of the four sides of the bottom wall 55H does not have a connecting wall, so that the through hole 55E penetrates the first insulating member 55A in the vertical direction. The two screw insertion holes 55F are located near two opposite corners of the first insulating member 55A, one on each side.

[0043] As shown in Figure 1, the second insulating member 55B has an L-shape. The second insulating member 55B is fixed to the case body 16 by snap-fits or screws, covering the fuses 51E and 51F located in the second opening 13D, and the pre-charge relay 61, resistor 62, and current sensing unit 63 which are positioned to rest on the cover 13. The second insulating member 55B is positioned on the case body 16 along two of the four sides of the first opening 13C (see Figure 7).

[0044] As shown in Figure 6, the relays 51C and 51D are fixed to the first insulating member 55A by tightening a third screw B3 into a nut N2 on the projection 55G. With the relays 51C and 51D fixed to the first insulating member 55A, the other end of the busbar 53 is positioned to block the first exposed hole 55C, and the other end of the busbar 54 is positioned to block the second exposed hole 55D (see Figure 7). The through hole H2 formed at the other end of the busbar 53 is positioned to face the first exposed hole 55C (see Figure 7). The through hole H2 formed at the other end of the busbar 54 is positioned to face the second exposed hole 55D (see Figure 7).

[0045] As shown in Figure 8, the relays 51C and 51D attached to the first insulating member 55A are inserted into the first opening 13C of the lid 13 and housed in the case 12. Specifically, while maintaining a position in which the first insulating member 55A is positioned above the relays 51C and 51D, the relays 51C and 51D are housed in the first opening 13C of the lid 13 from above. At this time, the relays 51C and 51D can be housed in the case 12 by dropping them into the case 12, making the process of housing them in the case 12 easy.

[0046] At this time, the other end of the busbar 53 on one end is positioned to overlap with the conductive busbar 14 that covers the upper end of the boss 16C, and the other end of the busbar 54 on the other end is positioned to overlap with the conductive busbar 14 that covers the upper end of the boss 16C. The first insulating member 55A is positioned so that its lower half is inserted into the first opening 13C. The first exposed hole 55C of the first insulating member 55A, the insertion hole H2 of the busbar 53 on one end, the insertion hole H1 of the conductive busbar 14, and the screw hole of the nut N1 of the boss 16C are all aligned and overlap. In addition, the second exposed hole 55D of the first insulating member 55A, the insertion hole H2 of the busbar 54 on the other end, the insertion hole H1 of the conductive busbar 14, and the screw hole of the nut N1 of the boss 16C are all aligned and overlap.

[0047] Then, the first screw B1 is inserted through the first exposed hole 55C, insertion hole H2, and insertion hole H1, which overlap so as to communicate with each other, and the first screw B1 is tightened into the nut N1 embedded in the boss 16C. At the same time, the second screw B2 is inserted through the second exposed hole 55D, insertion hole H2, and insertion hole H1, which overlap so as to communicate with each other, and the second screw B2 is tightened into the nut N1 embedded in the boss 16C. As a result, the busbar 53 at one end is fastened together with the conductive busbar 14 by the first screw B1 and fixed in place. The busbar 54 at the other end is fastened together with the conductive busbar 14 by the second screw B2 and fixed in place. The conductive busbar 14 to which the busbar 53 at one end is fastened is the first busbar, and the conductive busbar 14 to which the busbar 54 at the other end is fastened is the second busbar. Furthermore, the fourth screw B4 is inserted through the screw insertion hole 55F of the first insulating member 55A, and the fourth screw B4 is tightened onto the nut N1 embedded in the boss 16C.

[0048] Then, fuses 51E and 51F are placed one by one in the second opening 13D, and the busbars 51G and 51H at one end are fastened together with the conductive busbar 14 by tightening the fifth screw B5 onto the nut N1, and the busbars 51J and 51K at the other end are fastened together with the conductive busbar 14 by tightening the fifth screw B5 onto the nut N1 (see Figure 4). Then, the fuses 51E and 51F placed in the second opening 13D, and the pre-charge relay 61, resistor 62, and current detection unit 63 which are positioned to rest on the cover 13 are covered with the second insulating member 55B, and the second insulating member 55B is attached to the case body 16. In this way, the electrical component device 50 is fixed to the case 12 of the main body 11.

[0049] With the electrical component device 50 fixed to the case 12 of the main body 11, the first insulating member 55A is positioned to cover the relays 51C and 51D from the outside of the case 12 and to close the first opening 13C. The head of the first screw B1, when tightened into the nut N1 of the boss 16C of the case 12, is exposed to the outside through the first exposed hole 55C. The head of the second screw B2, when tightened into the nut N1 of the boss 16C of the case 12, is exposed to the outside through the second exposed hole 55D. The head of the fourth screw B4, when tightened into the nut N1 of the boss 16C of the case 12, is exposed to the outside.

[0050] To remove the electrical component device 50 from case 12, loosen and remove the first screw B1, the second screw B2, and the fourth screw B4. Then, insert your fingers into the two through holes 55E of the first insulating member 55A and grasp it, and pull up the first insulating member 55A. This allows you to remove the relays 51C and 51D, the one-end busbar 53, and the other-end busbar 54, along with the first insulating member 55A, from case 12.

[0051] To remove fuses 51E and 51F from case 12, first remove the second insulating member 55B from the case body 16. Then, loosen and remove the fifth screw B5 that is tightened to the busbars 51G and 51H on one end of fuses 51E and 51F and the busbars 51J and 51K on the other end. This will allow you to remove fuses 51E and 51F from case 12.

[0052] To remove the current sensing unit 63 from the case 12, loosen and remove the fifth screw B5 that is tightened to the busbar 63A on one end of the current sensing unit 63 and the busbar 63B on the other end. This will allow you to remove the current sensing unit 63 from the case 12. The precharge relay 61 and resistor 62 can then be removed by simply pulling them upwards.

[0053] Next, we will illustrate the effects of this configuration. The circuit assembly 10 comprises a main body 11 and an electrical component device 50 fixed to the main body 11. In the circuit assembly 10, the main body 11 has a first busbar (conductive path busbar 14), a second busbar (conductive path busbar 14), and a case 12 that houses the first busbar and the second busbar. The lid 13 of the case 12 has a first opening 13C and a second opening 13D into which the electrical component device 50 can be inserted. The electrical component device 50 has relays 51C and 51D, a one-end busbar 53 provided at one end of the relays 51C and 51D, a other-end busbar 54 provided at the other end of the relays 51C and 51D, and fuses 51E and 51F. The one-end busbar 53 is fixed to the first busbar (conductive path busbar 14) by a first screw B1. The other end busbar 54 is fixed to the second busbar (conductive circuit busbar 14) by the second screw B2. The one end busbars 51G and 51H of the fuses 51E and 51F are fixed to the first busbar (conductive circuit busbar 14) by the fifth screw B5, and the other end busbars 51J and 51K are fixed to the second busbar (conductive circuit busbar 14) by the fifth screw B5.

[0054] With this configuration, relays 51C and 51D can be mounted to case 12 via the first opening 13C, and fuses 51E and 51F can be mounted to case 12 via the second opening 13D, thus eliminating the need to remove the cover 13 from the case body 16 and open case 12.

[0055] One end busbar 53 is fastened to the first busbar (conductive busbar 14) by a first screw B1. The other end busbar 54 is fastened to the second busbar (conductive busbar 14) by a second screw B2. In addition, the one end busbars 51G and 51H of fuses 51E and 51F are fastened to the first busbar (conductive busbar 14) by a fifth screw B5, and the other end busbars 51J and 51K are fastened to the second busbar (conductive busbar 14) by a fifth screw B5. With this configuration, continuity between the one end busbars 53, 51G, and 51H and the first busbar can be ensured, as can continuity between the other end busbars 54, 51J, and 51K and the second busbar.

[0056] The electrical component device 50, when fixed to the main body 11, includes a first insulating member 55A that covers the relays 51C and 51D from the outside of the case 12, and a second insulating member 55B that covers the fuses 51E and 51F from the outside of the case 12. With this configuration, the first insulating member 55A makes it difficult to touch the relays 51C and 51D, and the second insulating member 55B makes it difficult to touch the fuses 51E and 51F.

[0057] The first insulating member 55A has a first exposed hole 55C that exposes the head of the first screw B1 to the outside, and a second exposed hole 55D that exposes the head of the second screw B2 to the outside. With this configuration, the first screw B1 and the second screw B2 can be attached and detached through the first exposed hole 55C and the second exposed hole 55D.

[0058] The opening 13B has a first opening 13C and a second opening 13D, the insulating member 55 has a first insulating member 55A and a second insulating member 55B, and the electrical component 51 has a first electrical component 51A and a second electrical component 51B. The first insulating member 55A covers the first electrical component 51A inserted into the first opening 13C from the outside, and the second insulating member 55B covers the second electrical component 51B inserted into the second opening 13D from the outside. With this configuration, one electrical component 51 can be covered with the insulating member 55 while the other electrical component 51 is exposed, so that electrical components 51 that do not need to be exposed are covered while electrical components 51 that need to be exposed are exposed.

[0059] The first electrical component 51A is fixed to the first insulating member 55A by a third screw B3. This configuration allows the first electrical component 51A to be handled by gripping the first insulating member 55A without directly touching the first electrical component 51A.

[0060] The first insulating member 55A has two through holes 55E that serve as gripping points. This configuration makes it easier to attach and detach the first insulating member 55A from the case 12.

[0061] <Other Embodiments> The embodiments disclosed herein should be considered in all respects to be illustrative and not restrictive. The scope of the present invention is not limited to the embodiments disclosed herein, but is indicated by the claims, and all modifications within the meaning and scope equivalent to the claims are intended to be included.

[0062] Unlike Embodiment 1, the nut may be provided on the tip of the boss by insert molding.

[0063] Unlike Embodiment 1, the outer shape of the first exposed hole and the second exposed hole of the first insulating member is not limited to a rectangular shape.

[0064] Unlike Embodiment 1, an insulating member may be provided individually for each relay. In this case, multiple first openings may be provided in the lid of the main body, and one insulating member may be placed in each first opening, or multiple insulating members may be arranged side by side within a single first opening.

[0065] Unlike Embodiment 1, electrical components such as fuses, resistors, pre-charge relays, current detection units, voltage detection units, and temperature detection units may be fixed to the insulating material. Electrical components are replaceable when they fail.

[0066] Unlike Embodiment 1, a screw hole may be formed in the conductive busbar, and one end of the busbar may be fixed to the conductive busbar by a first screw. Alternatively, a screw hole may be formed in the conductive busbar, and the other end of the busbar may be fixed to the conductive busbar by a second screw.

[0067] Unlike Embodiment 1, the relay may be configured with one busbar integrally attached to one end, or with the other busbar integrally attached to the other end.

[0068] Unlike Embodiment 1, a recess may be formed in the insulating member, and this recess may be used as a gripping point.

[0069] Unlike Embodiment 1, the number of through holes in the insulating member that serve as gripping points may be one or three or more. [Explanation of Symbols]

[0070] 10...Circuit construct 11...Main body 12... Cases 13…Lid 13A…Closure wall 13B…Opening 13C…1st opening 13D…Second opening 14…Conductive circuit busbars (first busbar, second busbar) 16…Case body 16A…Bottom wall 16B... Guide section 16C... Boss 50…Electrical component equipment 51… Electrical components 51A...First electrical component 51B...Second electrical component 51C, 51D… Relays 51E, 51F…Fuses 51G, 51H, 53, 63A… One-end busbar 51J, 51K, 54, 63B... Other end busbars 55…Insulating material 55A...First insulating member 55B...Second insulating member 55C…1st exposure hole 55D…Second exposure hole 55E...Through hole 55F...Screw insertion hole 55G…Protrusion 56, 57… terminals 61… Pre-charge relay 62...Resistor 63...Current detection unit B1...First screw B2...Second screw B3...Third screw B4...4th screw B5...5th screw B6...6th screw H1, H2... Through holes

Claims

1. A circuit configuration comprising a main body and an electrical component device fixed to the main body, The main body is, First bus bar and Second bus bar and It comprises a case that houses the first busbar and the second busbar, The case has an opening into which the electrical component device can be inserted, The aforementioned electrical component device is Electrical components and, A busbar is provided at one end of the aforementioned electrical component, The electrical component has a busbar on the other end, The busbar at one end is fixed to the first busbar by a first screw, The other end busbar is fixed to the second busbar by a second screw, forming a circuit configuration.

2. The busbar at one end is fastened to the first busbar by the first screw, The circuit configuration according to claim 1, wherein the other end busbar is fastened together with the second busbar by the second screw.

3. The circuit configuration according to claim 1, wherein the electrical component device, when fixed to the main body, has an insulating member that covers at least a portion of the electrical component from the outside of the case.

4. The circuit configuration according to claim 3, wherein the insulating member has a first exposure hole for exposing the head of the first screw to the outside, and a second exposure hole for exposing the head of the second screw to the outside.

5. The aforementioned opening has a first opening and a second opening, The insulating member comprises a first insulating member and a second insulating member. The aforementioned electrical component comprises a first electrical component and a second electrical component. The first insulating member covers the first electrical component inserted into the first opening from the outside. The circuit configuration according to claim 3, wherein the second insulating member covers the second electrical component inserted into the second opening from the outside.

6. The circuit configuration according to claim 3, wherein the electrical component is fixed to the insulating member by a third screw.

7. The circuit configuration according to claim 3, wherein the insulating member has one or more recesses or through holes formed therein that serve as gripping points.

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