Electrical equipment

Abstract

To add noise countermeasures to electrical equipment while minimizing design changes.SOLUTION: Electrical equipment 10 includes a circuit board 20, a first board terminal 30P1 connected to the circuit board 20, a magnetic substance core 40 provided on the first board terminal 30P1, and first wiring 50P1 having one end connected to the first board terminal 30P1.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to electrical devices. [Background technology]

[0002] Patent Document 1 discloses an interconnection box that electrically connects an instrument panel harness, an engine room harness, a door harness, and a floor harness to each other. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2007-202352 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, there may be cases where additional noise countermeasures are required after the basic design of an electrical device to which a wire harness or the like is connected. In such cases, it is desirable to be able to add noise countermeasures while minimizing design changes to the electrical device.

[0005] Therefore, an object of the present disclosure is to make it possible to add noise countermeasures to electrical equipment while minimizing design changes. [Means for solving the problem]

[0006] The electrical device disclosed herein is an electrical device comprising a circuit board, a first board terminal connected to the circuit board, a magnetic core provided on the first board terminal, and a first wiring having one end connected to the first board terminal. Effect of the Invention

[0007] According to the present disclosure, noise countermeasures can be added to electrical equipment while minimizing design changes. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a plan view showing an electric device according to a first embodiment. [Diagram 2] FIG. 2 is a cross-sectional view taken along line II-II in FIG. [Diagram 3] FIG. 3 is a cross-sectional view taken along line III-III in FIG. [Figure 4] FIG. 4 is a partially enlarged plan view showing the electrical device with the case removed. [Diagram 5] FIG. 5 is a plan view showing the electric device according to the second embodiment. [Figure 6] FIG. 6 is a partially enlarged plan view showing the electrical device with the case removed. [Figure 7] FIG. 7 is a plan view showing a modified example of the electric device according to the second embodiment. [Figure 8] FIG. 8 is a partially enlarged plan view showing the electrical device with the case removed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [Description of the embodiments of the present disclosure] First, the embodiments of the present disclosure will be listed and described.

[0010] The electrical device of the present disclosure is as follows.

[0011] (1) An electrical device comprising: a circuit board; a first board terminal connected to the circuit board; a magnetic core provided on the first board terminal; and a first wiring having one end connected to the first board terminal.

[0012] According to the electric device of (1), a magnetic core is provided in the first board terminal, thereby making it possible to implement noise countermeasures in the electric device. Also, a first wiring is provided in the first board terminal, so that the first board terminal can be connected to an external connection partner via the first wiring. It becomes possible to add noise countermeasures in the electric device while minimizing design changes. In particular, if there is a design change in the circuit board, it is limited to the part related to the board terminal, and no major design change is required.

[0013] (2) In the electric device of (1), the electric device may include a second board terminal connected to the circuit board, and the magnetic core may be provided in the first board terminal of the first and second board terminals, thereby providing necessary noise countermeasures for some of the multiple board terminals.

[0014] (3) In the electric device of (2), the electric device may include a case for accommodating the circuit board, a second wiring having one end connected to the second board terminal, and an external connection connector to which the other end of the first wiring and the other end of the second wiring are connected, each of the first wiring and the second wiring is a coated wire including a conductor and an insulating coating covering the conductor, the one end of the first wiring and the one end of the second wiring are located inside the case, the other end of the first wiring and the other end of the second wiring extend outside the case, and the case may be provided with a wiring penetration part through which the middle part of the first wiring and the middle part of the second wiring penetrate. This allows the external connection connector to be provided outside the case. Furthermore, the configuration of the connection port of the external connection connector can be configured to correspond to the board connector, and there is no need to change the configuration of the connection partner such as a wire harness.

[0015] (4) In the electric device of (3), the electric device may include a sheet to which the first wiring and the second wiring are fixed and which keeps the first wiring and the second wiring flat. This allows the wiring portion outside the case to be made thin. The sheet also allows the first wiring and the second wiring to be kept in an arrangement corresponding to the arrangement of the board terminals.

[0016] (5) In the electric device of (3) or (4), the case may include a clamping portion that clamps the connection portion between the first board terminal and the first wiring and the connection portion between the second board terminal and the second wiring, thereby preventing rattling of the connection portion between the first board terminal and the first wiring and the connection portion between the second board terminal and the second wiring.

[0017] (6) In the electric device of any one of (3) to (5), the electric device may include an insulating support plate portion supporting the intermediate portion of the first board terminal and the intermediate portion of the second board terminal, and the connection portion between the first board terminal and the first wiring and the connection portion between the second board terminal and the second wiring may be welded portions. In this way, the intermediate portions of the board terminals are supported by the insulating support plate portion, thereby stabilizing the posture of the board terminals when they are welded to the wiring.

[0018] (7) In the electric device of (2), the electric device may include a case that houses the circuit board, and a connector housing that holds the second board terminal, a part of which is covered by the case and another part of which is open to the outside of the case, so that the part of the second board terminal that is not provided with a magnetic core can be a board connector.

[0019] In the electric device of (8) or (7), the electric device may include an external connection terminal connected to the other end of the first wiring and held in the connector housing. This allows the board connector to include the external connection terminal of the circuit related to the first board terminal. In this case, it is not necessary to change the configuration of the connection partner such as a wire harness.

[0020] (9) In the electric device of (7), the electric device may include an external connection terminal connected to the other end of the first wiring and located outside the connector housing, whereby the external connection terminal of the circuit related to the first board terminal can be separated from the board connector.

[0021] (10) In the electric device of (9), the first wiring may be a covered wire including a conductor and an insulating covering covering the conductor, the one end of the first wiring is located inside the case, the other end of the first wiring extends outside the case, and the case may be provided with a wiring penetration part through which an intermediate part of the first wiring penetrates. This allows the first external connection terminal to be connected to an external wiring outside the case.

[0022] [Details of the embodiment of the present disclosure] Specific examples of the electrical device of the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0023] [Embodiment 1] The electric device according to the first embodiment will be described below. Fig. 1 is a plan view showing the electric device 10 according to the first embodiment. Fig. 2 is a cross-sectional view taken along the line II-II in Fig. 1. Fig. 3 is a cross-sectional view taken along the line III-III in Fig. 1. Fig. 4 is a partially enlarged plan view showing the electric device 10 with the case 60 removed.

[0024] The electric device 10 is mounted on, for example, a vehicle. The electric device is, for example, an ECU (electronic control unit). The vehicle may be provided with one central ECU and multiple zone ECUs. The zone ECU is provided for each of the multiple zones into which the vehicle is divided. The zone ECU mainly controls the devices present in that zone. The central ECU supervises the multiple zone ECUs to realize cooperative control of the entire vehicle. The electric device 10 may be, for example, a zone ECU. However, the electric device 10, which is an ECU, may be a general ECU other than a zone ECU. Furthermore, the electric device 10 does not have to be an ECU, and may be, for example, a junction block (also called an electrical connection box).

[0025] For example, a wire harness WH1 is connected to the electric device 10. For example, the electric device 10 is arranged in a space surrounded by an instrument panel, a dash panel, a cowl side panel, and a floor panel. The control targets of the electric device 10 as a zone ECU arranged in the space include a plurality of devices connected to an engine room harness, an instrument panel harness, a door harness, and a floor harness. The electric device 10 may be fixed to the cowl side panel, the dash panel, the instrument panel reinforcement, the floor panel, or the like.

[0026] The electric device 10 includes a circuit board 20, a board terminal 30, a magnetic core 40, and wiring 50. The electric device 10 includes a case 60, an external connection connector 70, and a sheet 80.

[0027] The circuit board 20 has a board body and a circuit pattern formed on the board body. The configurations of the board body and the circuit pattern are not particularly limited and can be set appropriately. For example, the board body may be an insulating board, or may be a metal-based board made of metal with an insulating layer laminated thereon. The circuit pattern is provided by, for example, copper foil or the like. The circuit pattern may be provided in a single layer on one side of the board body, in two layers on both sides of the board body, or in three or more layers including the inside of the board body. The circuit board 20 may be a rigid board or a flexible board. Electronic components (not shown), such as electromagnetic relays, semiconductor switches, fuses, and ICs (Integrated Circuits), are mounted on the circuit board 20.

[0028] The board terminal 30 is mounted on the circuit board 20. The board terminal 30 is interposed between the circuit pattern of the circuit board 20 and the electric wire W of the wire harness WH1. The board terminal 30 is made of a metal such as copper or aluminum. The board terminal 30 extends, for example, in an L-shaped plate shape. One end of the board terminal 30 is connected to the circuit board 20 by solder or the like. One end of the board terminal 30 may be mounted on the circuit board 20 using a through hole or may be mounted on a land of the circuit board 20. In this embodiment, the other end of the board terminal 30 is connected to the wiring 50. In this embodiment, a plurality of power terminals 30P and a plurality of signal terminals 30S are provided as the board terminal 30. The conductor cross-sectional area of ​​the power terminal 30P is larger than the conductor cross-sectional area of ​​the signal terminal 30S. The power terminal 30P is thicker than the signal terminal 30S.

[0029] The magnetic core 40 is attached to the power terminal 30P to reduce electromagnetic waves radiated from the power terminal 30P. The magnetic core 40 is provided on a power terminal 30P1, which is a part of the multiple power terminals 30P. The magnetic core 40 is not provided on another power terminal 30P2, which is a part of the multiple power terminals 30P. The magnetic core 40 may be provided on all of the multiple power terminals 30P. Also, the magnetic core 40 is not provided on all signal terminals 30S. Among the board terminals 30, the power terminal 30P1 provided with the magnetic core 40 is an example of a first board terminal, and the power terminal 30P2 and the signal terminal 30S not provided with the magnetic core 40 are examples of a second board terminal. Hereinafter, they may be referred to as the first board terminal 30P1, the second board terminal 30P2, and 30S. First substrate terminal 30P1 is a cored terminal having a magnetic core 40 attached thereto, and second substrate terminals 30P2 and 30S are coreless terminals having no magnetic core 40 attached thereto.

[0030] The magnetic core 40 is a member containing a magnetic material and formed into a block shape. The magnetic core 40 has a through hole. The power terminal 30P is inserted into the through hole. As a result, the inner peripheral surface of the through hole of the magnetic core 40 faces the outer peripheral surface of the power terminal 30P. The magnetic core 40 containing a magnetic material absorbs, for example, electromagnetic waves radiated from the power terminal 30P and converts the energy of the electromagnetic waves into mechanical energy such as vibration or thermal energy. This reduces the adverse effects of the electromagnetic waves radiated from the power terminal 30P on surrounding devices, etc. The magnetic material of the magnetic core 40 is, for example, ferrite or silicon steel, and can be appropriately selected according to the frequency band of the electromagnetic noise to be reduced. For example, the magnetic core 40 is formed into a cylindrical shape.

[0031] A core mounting portion on which the magnetic core 40 is mounted is provided at the middle portion of the power terminal 30P. A bent portion is provided at the middle portion of the L-shaped power terminal 30P. In the example shown in FIG. 2, the core mounting portion is provided between the bent portion and the other end portion of the L-shaped power terminal 30P. The inner surface of the through hole of the magnetic core 40 may or may not be in contact with the outer surface of the core mounting portion. The inner surface shape of the magnetic core 40 and the outer surface shape of the core mounting portion may be formed in the same shape, and the entire inner surface of the magnetic core 40 may be in contact with the entire outer surface of the core mounting portion. The inner surface shape of the magnetic core 40 and the outer surface shape of the core mounting portion may be formed in different shapes, and a part of the inner surface of the magnetic core 40 may be in contact with a part of the outer surface of the core mounting portion.

[0032] The distance between the power terminal 30P1 and the power terminal 30P2 may be greater than the difference between the outer diameter (radius of the outer surface) and the inner diameter (radius of the inner surface) of the magnetic core 40. The magnetic core 40 attached to the power terminal 30P1 is not in contact with the power terminal 30P2. The distance between the signal terminals 30S may be less than the difference between the outer diameter and the inner diameter of the magnetic core 40.

[0033] In this embodiment, the wiring 50 is provided in a number corresponding to the board terminals 30. The wiring 50 includes a conductor core 51 and an insulating coating 52 that covers the conductor core 51. The wiring 50 is a coated electric wire. The conductor core 51 is, for example, a twisted wire in which a plurality of strands are twisted. The conductor core 51 may be composed of a single strand. One end of the wiring 50 is connected to the board terminal 30. The connection mode between the wiring 50 and the board terminal 30 is not particularly limited and can be set appropriately. Here, the wiring 50 and the board terminal 30 are connected by welding such as resistance welding or ultrasonic welding. For example, the other end of the board terminal 30 is formed in a plate shape, and a plurality of strands of the conductor core are spread and welded on the plate-shaped board terminal 30. As the wiring 50, a plurality of power lines 50P connected to the plurality of power terminals 30P, respectively, and a plurality of signal lines 50S connected to the plurality of signal terminals 30S, respectively, are provided. Among the multiple power lines 50P, the power line 50P1 connected to the power terminal 30P1 is an example of a first wiring connected to the first substrate terminal 30P1. Among the multiple power lines 50P, the power line 50P2 connected to the power terminal 30P2 and the signal line 50S are an example of a second wiring connected to the second substrate terminals 30P2 and 30S. Hereinafter, they may be referred to as the first wiring 50P1 and the second wiring 50P2 and 50S.

[0034] The case 60 houses the circuit board 20. The case 60 is a box formed of resin, metal, or the like. The circuit board 20 is fixed inside the case 60. The board terminal 30 and one end of the wiring 50 are located inside the case 60. The middle part of the wiring 50 passes through the case 60. The other end of the wiring 50 is located outside the case 60. The case 60 is provided with a wiring penetration part 63 and a clamping part 64. The case 60 has, for example, an upper case 61 and a lower case 62. The upper case 61 and the lower case 62 overlap in the normal direction of the main surface of the circuit board 20. The upper case 61 and the lower case 62 overlap each other to form the wiring penetration part 63 and the clamping part 64.

[0035] The wiring penetration portion 63 is a portion through which the wiring 50 penetrates. The wiring penetration portion 63 is provided in one side plate portion of the case 60. A plurality of wiring penetration portions 63 may be provided so that a plurality of wirings 50 penetrate individually. A single wiring penetration portion 63 may be provided so that a plurality of wirings 50 penetrate collectively. The wiring penetration portion 63 may be, for example, a portion in which a semicircular groove formed on the edge of the upper case 61 and a semicircular groove formed on the edge of the lower case 62 are joined together to form a circular through hole. The wiring penetration portion 63 may have a waterproof structure capable of suppressing the intrusion of water into the case 60 through the wiring penetration portion 63. As such a waterproof structure, for example, a rubber plug may be provided between the edge of the upper case 61 and the edge of the lower case 62 and the outer surface of the wiring 50. The wiring penetration portion 63 may not be provided with a waterproof structure. In this case, the electric device 10 is preferably arranged so that the side plate portion of the case 60 where the wiring through portion 63 is provided faces vertically downward or horizontally rather than vertically upward.

[0036] The clamping portion 64 is a portion that clamps the connection portion between the wiring 50 and the board terminal 30. Here, the clamping portion 64 clamps the welded portion between the wiring 50 and the board terminal 30 from both the wiring 50 side and the board terminal 30 side. The upper case 61 contacts the welded portion from the wiring 50 side, and the lower case 62 contacts the welded portion from the board terminal 30 side. A protrusion may be provided on the inner surface of the case 60 as the clamping portion 64. If the welded portion is not insulated, the portion of the clamping portion 64 that contacts the welded portion may be insulating. If the welded portion is insulated, the clamping portion 64 may be made of metal.

[0037] The external connector 70 is located outside the case 60. The other end of the wiring 50 is connected to the external connector 70. The external connector 70 has a connector housing 71 and a plurality of external connection terminals 72. The connector housing 71 is made of insulating resin and holds the external connection terminals 72 in a predetermined arrangement. The number of the external connection terminals 72 corresponds to the number of the wirings 50. The other end of the wiring 50 is connected to the external connection terminals 72. The connection mode between the external connection terminals 72 and the wiring 50 is not particularly limited, and may be crimping, pressure welding, welding, or the like. For example, the connector housing 71 may have a cavity. In a state in which the external connection terminals 72 are connected to the other end of the wiring 50 to form a terminal-equipped electric wire, the end of the terminal-equipped electric wire may be inserted and held in the cavity. The external connector 70 is connected to a mating connector C1 provided at the end of the electric wire W of the wire harness WH1.

[0038] The intermediate portion of the wiring 50 that extends outside the case 60 is fixed to the sheet 80. The sheet 80 keeps the multiple wirings 50 in a flat state. The sheet 80 may be a resin sheet, a metal sheet, or a composite sheet of a metal sheet and a resin sheet. The manner in which the wiring 50 and the sheet 80 are fixed to each other is not particularly limited and can be set appropriately. For example, the wiring 50 and the sheet 80 may be fixed by fusion. In this case, the resin contained in at least one of the coating of the wiring 50 and the main surface of the sheet 80 melts and adheres to the surface of the mating member and is fixed. For example, the wiring 50 and the sheet 80 may be attached by an adhesive or a sticky material. The multiple wirings 50 may be held on the sheet 80 in the same arrangement as the multiple board terminals 30. This makes it easier to position the multiple wirings 50 and the multiple board terminals 30 when welding the wirings 50 and the board terminals 30.

[0039] The sheet 80 may be a sheet having a fibrous material such as a nonwoven fabric. The sheet 80 may be a sheet having a solid cross section. The sheet 80 may have flexibility capable of following the bending of the wiring 50. The position of the external connector 70 relative to the case 60 may be changeable by bending the wiring 50 and the sheet 80. The sheet 80 may be a rigid member, and the position of the external connector 70 relative to the case 60 may be constant.

[0040] However, the sheet 80 does not necessarily have to be provided in the electric device 10. The multiple wires 50 may be bound into a circular bundle by a binding member such as an adhesive tape or a cable tie.

[0041] The circuit board 20 is provided with a support plate portion 22. The support plate portion 22 may be made of rubber or hard resin. The support plate portion 22 may have insulating properties. The support plate portion 22 may be fixed to the main surface of the circuit board 20 by adhesive or the like. The support plate portion 22 supports the middle portion of the board terminal 30. The support plate portion 22 supports the L-shaped board terminal 30 between the bent portion and the other end portion. In the power terminal 30P1, the magnetic core 40 is supported by the support plate portion 22. The support plate portion 22 has a first support portion sandwiched between the magnetic core 40 and the circuit board 20. The support plate portion 22 directly supports the power terminal 30P2 and the signal terminal 30S. The support plate portion 22 has a second support portion sandwiched between the power terminal 30P2 and the signal terminal 30S and the circuit board 20. The thickness dimension of the first support portion of the support plate portion 22 is smaller than the thickness dimension of the second support portion.

[0042] An insulating cover 24 is provided on the circuit board 20. The insulating cover 24 covers the middle portion of the board terminal 30 from the side opposite to the support plate portion 22. The insulating cover 24 is spaced apart from the board terminal 30. The insulating cover 24 may be in contact with the board terminal 30. The insulating cover 24 is in contact with the magnetic core 40. The insulating cover 24 may be spaced apart from the magnetic core 40.

[0043] The direction parallel to the main surface of the circuit board 20 and perpendicular to the parallel direction of the board terminals 30 is the extension direction of the other end of the board terminals 30. In the example shown in FIG. 1, the left-right direction of the paper is the parallel direction of the board terminals 30, and the up-down direction of the paper is the extension direction of the other end of the board terminals 30. The other end of the power terminal 30P and the other end of the signal terminal 30S are aligned with each other in the extension direction of the other end of the board terminal 30. This makes it easier to weld the power terminal 30P and the power line 50P, and the signal terminal 30S and the signal line 50S together using an automatic welding machine or the like. The signal terminal 30S may not be provided with a magnetic core 40, but may have the same length as the power terminal 30P, and one end of the power terminal 30P and one end of the signal terminal 30S may be aligned with each other along the extension direction of the other end of the board terminal 30. The signal terminals 30S are shorter in length than the power terminals 30P, and one end of the power terminals 30P and one end of the signal terminals 30S do not have to be aligned with each other along the direction in which the other end of the board terminal 30 extends.

[0044] [Embodiment 2] An electric device according to a second embodiment will be described. Fig. 5 is a plan view showing an electric device 110 according to the second embodiment. Fig. 6 is a partially enlarged plan view showing the electric device 110 with the case 160 removed. In the following description, the same components as those described above are given the same reference numerals and the description thereof will be omitted.

[0045] In the electric device 110, a board connector 170 is provided instead of the external connection connector 70. The board connector 170 penetrates the inside and outside of the case 160 at one side plate portion of the case 160. In addition to the external connection connector 70, the electric device 110 does not include some of the components provided for the external connection connector 70 in the electric device 10. For example, the second wiring 50P2, 50S, the wiring through portion 63, the clamping portion 64, the sheet 80, and the like are not provided in the electric device 110.

[0046] The board connector 170 includes a power terminal 30P2, a signal terminal 30S, and a connector housing 171. In the example shown in Fig. 6, the board connector 170 includes an external connection terminal 172. When a mating connector C1 of a wire harness WH1 is connected to the board connector 170, the electric wires W of the wire harness WH1 are connected to a circuit in the electric device 110.

[0047] The connector housing 171 holds the power terminals 30P2, the signal terminals 30S, and the external connection terminals 172. A part of the connector housing 171 is covered by the case 160. Another part of the connector housing 171 opens to the outside of the case 60.

[0048] One end of the power supply terminal 30P2 and one end of the signal terminal 30S are electrically connected to the circuit pattern of the circuit board 20 inside the case 60. One end of the external connection terminal 172 is connected to the other end of the power supply line 50P1. The other end of the power supply terminal 30P2, the other end of the signal terminal 30S, and the other end of the external connection terminal 172 are exposed to an opening in the connector housing 171 for connection with the mating connector C1. The power supply line 50P1 is located inside the case 60 and connects the power supply terminal 30P1 and the external connection terminal 172. In this embodiment, the power supply line 50P1 is a jumper wire.

[0049] <Modification of the second embodiment> Fig. 7 is a plan view showing a modified example of the electric device 110 according to the embodiment 2. Fig. 8 is a partially enlarged plan view showing the electric device 210 with the case 260 removed.

[0050] 7 is also provided with a board connector 170, similar to the electric device 110, and the second board terminals 30P2, 30S function as connector terminals in the board connector 170. In the electric device 210, the external connection terminals 272 are not held by the board connector 170, and do not function as connector terminals in the board connector 170.

[0051] In the electric device 210, an external connection connector 270 is provided in addition to the board connector 170. The external connection connector 270 has a connector housing 271 and an external connection terminal 72. The power line 50P1 connects the power terminal 30P1 and the external connection terminal 72. The external connection terminal 72 is located outside the connector housing 171 that is the board connector 170. Here, the external connection terminal 72 is located outside the case 260. One end of the power line 50P1 is located inside the case 260. The other end of the power line 50P extends outside the case 260. The middle part of the power line 50P passes through the case 260. The case 260 is provided with a wiring penetration part 63 for the power line 50P1 and a clamping part 64. In the electric device 210, the power line 50P2 and the signal line 50S are not provided, and the case 260 is not provided with the wiring through portion 63 and the clamping portion 64 for the power line 50P2 and the signal line 50S. Furthermore, the sheet 80 is not provided in the electric device 210. In the electric device 210, there is only one power line 50P1 extending outside the case 260. The circuit associated with the power terminal 30P2 not provided with the magnetic core 40 may be configured to be held in the connector housing 271 via the power line 50P2, similar to the circuit associated with the power terminal 30P1.

[0052] The wire harness WH2 connected to the electric device 210 includes a mating connector C2 in addition to the mating connector C1. The mating connector C1 is provided at an end of the electric wire W1 connected to the second board terminals 30P2, 30S, and the mating connector C2 is provided at an end of the electric wire W2 connected to the external connection terminal 272. In the wire harness WH2, no electric wire is provided to be connected to the external connection terminal 172. In the mating connector C1, a portion corresponding to the external connection terminal 172 is left empty.

[0053] The external connection terminal 172 may be provided as a dummy terminal in the board connector 170. The electric circuit related to the dummy terminal is an electric circuit that is not used in the vehicle. The dummy terminal is, for example, a terminal that is not connected to the circuit pattern of the circuit board 20. Also, for example, the dummy terminal is a terminal that is connected to a circuit in the circuit board 20 that is not electrically used, or a circuit that is interrupted midway. Specifically, for example, the dummy terminal may be connected to a land of a circuit that has only a land, or may be connected to a land whose circuit connected to the land is interrupted midway. The external connection terminal 172 may not be provided in the board connector 170. The portion of the connector housing 171 that holds the external connection terminal 172 may be empty.

[0054] In electric device 210, power line 50P1 does not have to extend outside case 260. Connector housing 271 may be held in case 260 separately from board connector 170. An opening for board connector 170 and an opening for external connection connector 270 may be provided separately from each other on the outer surface of case 260.

[0055] <Effects, etc.> According to the electric devices 10, 110, 210 configured as described above, the magnetic core 40 is provided in the first board terminal 30P1, so that the electric devices 10, 110, 210 can implement noise countermeasures. Furthermore, the first wiring 50P1 is provided in the first board terminal 30P1, so that the first board terminal 30P1 can be connected to an external connection partner via the first wiring 50P1. This makes it possible to add noise countermeasures to the electric devices 10, 110, 210 while minimizing design changes. In particular, if there is a design change in the circuit board 20, it is limited to the part related to the board terminal 30, and no major design change is required.

[0056] Furthermore, in electric devices 10, 110, 210, magnetic core 40 is provided in first board terminal 30P1 among first board terminal 30P1 and second board terminals 30P2, 30S. This makes it possible to implement necessary noise countermeasures for some of the multiple board terminals 30.

[0057] According to the electric device 10, one end of the first wiring 50P1 and one end of the second wiring 50P2, 50S are located inside the case 60, the other end of the first wiring 50P1 and the other end of the second wiring 50P2, 50S extend outside the case 60, and the case 60 is provided with a wiring penetration portion 63 through which the middle portion of the first wiring 50P1 and the middle portions of the second wiring 50P2, 50S penetrate. This allows the external connection connector 70 to be provided outside the case 60. Furthermore, since the other end of the first wiring 50P1 and the other end of the second wiring 50P2, 50S are connected to the external connection connector 70, the configuration of the connection port in the external connection connector 70 can be configured to correspond to the board connector 170, and there is no need to change the configuration of the connection partner such as the wire harness WH1.

[0058] Moreover, the electric device 10 includes the sheet 80 to which the first wiring 50P1 and the second wiring 50P2, 50S are fixed and which keeps the first wiring 50P1 and the second wiring 50P2, 50S in a flat state. This allows the wiring portion outside the case 60 to be thin. The sheet 80 also allows the first wiring 50P1 and the second wiring 50P2, 50S to be maintained in an arrangement corresponding to the arrangement of the board terminals 30.

[0059] Furthermore, in electric device 10, case 60 includes clamping portion 64 that clamps the connection portion between first board terminal 30P1 and first wiring 50P1 and the connection portion between second board terminals 30P2, 30S and second wiring 50P2, 50S. This makes it possible to prevent rattling of the connection portion between first board terminal 30P1 and first wiring 50P1 and the connection portion between second board terminals 30P2, 30S and second wiring 50P2, 50S.

[0060] Furthermore, according to electric device 10, electric device 10 includes support plate portion 22 that supports the middle portion of first board terminal 30P1 and the middle portions of second board terminals 30P2, 30S, and the connection portion between first board terminal 30P1 and first wiring 50P1 and the connection portion between second board terminals 30P2, 30S and second wiring 50P2, 50S are welded portions. As a result, the middle portions of board terminals 30 are supported by support plate portion 22, and thus the posture of board terminal 30 when welded to wiring 50 is stabilized.

[0061] Electric devices 110 and 210 further include connector housing 171 that holds second board terminals 30P2 and 30S, a portion of which is covered by case 160 and 260, and another portion of which is open to the outside of case 160 and 260. This allows the portion of second board terminals 30P2 and 30S that is not provided with magnetic core 40 to be formed as board connector 170.

[0062] Moreover, the electric device 110 includes an external connection terminal 172 connected to an end of the first wiring 50P1 and held in a connector housing 171. This allows the external connection terminal 172 of the circuit related to the first board terminal 30P1 to be included in the board connector 170. In this case, it is not necessary to change the configuration of the board connector 170 other than the power terminal 30P1 and the configuration of the connection partner such as the wire harness WH1.

[0063] Electric device 210 further includes external connection terminal 72 that is connected to the other end of first wiring 50P1 and is located outside connector housing 171 that serves as board connector 170. This allows external connection terminal 72 of the circuit related to first board terminal 30P1 to be separate from board connector 170.

[0064] According to electric device 210, first wiring 50P1 is a coated electric wire, one end of first wiring 50P1 is located inside case 260, the other end of first wiring 50P1 extends outside case 260, and case 260 is provided with wiring through-hole 63 through which an intermediate portion of first wiring 50P1 penetrates. This allows external connection terminal 272 to be connected to wire harness WH2 as an external wiring outside case 260.

[0065] In addition, according to the electric device 10, 110, 210, the size of the case 60, 160, 260 can be reduced by providing the external connector 70, 270 outside the case 60, 160, 260 or by using the conventional board connector 170. This makes it possible to reduce the need for significant design changes even when the vehicle has limited space for arranging the case 60, 160, 260, particularly the space around the wiring penetration portion 63 or the board connector 170. For example, according to the electric device 10, 210, the external connector 70, 270 and the case 60, 260 are connected by the wiring 50. The connector device in which the external connector 70, 270 and the mating connector C1, C2 are connected can be arranged in an empty space in the case 60, 260 away from the periphery of the wiring penetration portion 63. Furthermore, if the wiring 50 is flexible, the position of the external connector 70, 270 relative to the case 60, 260 can be changed.

[0066] [Note] Although the above description has been given assuming that second board terminals 30P2 and 30S are provided, this is not an essential configuration. Second board terminals 30P2 and 30S do not have to be provided. In other words, magnetic cores 40 may be provided in all of the board terminals 30.

[0067] The configurations described in the above embodiments and modifications can be combined as appropriate as long as they are not mutually inconsistent. [Explanation of symbols]

[0068] 10, 110, 210 Electrical equipment 20 Circuit Board 22 Support plate part 24 Insulating cover 30 Board terminal 30P power terminal 30P1 Power terminal (first board terminal) 30P2 Power supply terminal (2nd board terminal) 30S signal terminal (2nd board terminal) 40 Magnetic core 50 Wiring 50P power wire 50P1 Power line (1st wiring) 50P2 power line (second wiring) 50S signal line (second wiring) 51 Conductor core wire 52 Insulation coating 60, 160, 260 cases 61 Upper Case 62 Lower case 63 Wiring penetration 64 Clamping part 70, 270 External connection connector 71, 171, 271 Connector Housing 72, 172, 272 External connection terminal 80 sheets 170 PCB Connector WH1, WH2 Wire harness C1, C2 Mating connector W, W1, W2 wire

Claims

1. A circuit board; A first board terminal connected to the circuit board; a magnetic core provided on the first substrate terminal; A first wiring having one end connected to the first substrate terminal; An electrical device comprising:

2. 2. The electrical device according to claim 1 , a second board terminal connected to the circuit board; The magnetic core is provided in the first board terminal out of the first board terminal and the second board terminal.

3. 3. The electrical device according to claim 2, a case for accommodating the circuit board; A second wiring having one end connected to the second substrate terminal; an external connection connector to which the other end of the first wiring and the other end of the second wiring are connected; Equipped with Each of the first wiring and the second wiring is a coated wire including a conductor and an insulating coating covering the conductor, the one end of the first wiring and the one end of the second wiring are located inside the case, the other end of the first wiring and the other end of the second wiring extend outside the case, The electrical device, wherein the case is provided with a wiring through-portion through which an intermediate portion of the first wiring and an intermediate portion of the second wiring pass.

4. 4. The electrical device according to claim 3, An electrical device comprising a sheet to which the first wiring and the second wiring are fixed and which maintains the first wiring and the second wiring in a flat state.

5. The electrical device according to claim 3 or 4, The case includes a clamping portion that clamps a connection portion between the first board terminal and the first wiring, and a connection portion between the second board terminal and the second wiring.

6. The electrical device according to claim 3 or 4, an insulating support plate portion supporting the intermediate portion of the first board terminal and the intermediate portion of the second board terminal; a connection portion between the first board terminal and the first wiring, and a connection portion between the second board terminal and the second wiring, each of which is a welded portion.

7. 3. The electrical device according to claim 2, a case for accommodating the circuit board; a connector housing that holds the second board terminal, a portion of which is covered by the case and another portion of which is open to the outside of the case; An electrical device comprising:

8. 8. An electrical device according to claim 7, an external connection terminal connected to the other end of the first wiring and held by the connector housing;

9. 8. An electrical device according to claim 7, an external connection terminal connected to the other end of the first wiring and located outside the connector housing;

10. 10. The electrical device according to claim 9, The first wiring is a covered wire including a conductor and an insulating cover covering the conductor, the one end of the first wiring is located inside the case, The other end of the first wiring extends outside the case, The electrical device, wherein the case is provided with a wiring through-portion through which an intermediate portion of the first wiring passes.

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