阅读说明：本技术 电路装置 (Circuit arrangement ) 是由 菊田高宗 于 2019-12-19 设计创作，主要内容包括：以提供使得在电路的连接部分能够容易应对设计变更的技术为目的。电路装置具备层积体和多个端子,所述层积体包括多个层,在所述层积体形成有贯穿所述多个层的多个孔,所述多个层分别具有由导体形成的连接构件,所述连接构件具有设置于与多个所述孔分别对应的位置的多个连接部和将所述多个连接部彼此相连的连结部,所述多个端子包括与所述多个层分别对应的多个种类的端子,所述多个种类的端子分别插入到多个所述孔中任意的孔而能够与所述多个层中任一个对应的层的所述连接部选择性地连接。(An object is to provide a technique for easily coping with a design change at a connection portion of a circuit. The circuit device includes a multilayer body including a plurality of layers, a plurality of holes penetrating the plurality of layers being formed in the multilayer body, each of the plurality of layers including a connecting member formed of a conductor, the connecting member including a plurality of connecting portions provided at positions corresponding to the plurality of holes and a connecting portion connecting the plurality of connecting portions to each other, and a plurality of terminals including a plurality of types of terminals corresponding to the plurality of layers, the plurality of types of terminals being inserted into any of the plurality of holes and being selectively connectable to the connecting portion of any of the plurality of layers.)

1. A circuit device includes a laminate and a plurality of terminals,

the laminate comprises a plurality of layers, wherein,

a plurality of holes penetrating the plurality of layers are formed in the laminate,

the plurality of layers respectively have connection members formed of conductors,

the connecting member has a plurality of connecting portions provided at positions corresponding to the plurality of holes, respectively, and a connecting portion connecting the plurality of connecting portions to each other,

the plurality of terminals include a plurality of kinds of terminals corresponding to the plurality of layers, respectively,

the plurality of types of terminals are inserted into any of the plurality of holes, and can be selectively connected to the connection portion of a corresponding layer of the plurality of layers.

2. The circuit arrangement of claim 1,

the plurality of kinds of terminals include a tape covered portion terminal,

the terminal with a covering part has a terminal main body and an insulating covering part,

the terminal body has a 1 st portion corresponding to a layer as a connection partner and a 2 nd portion corresponding to a layer other than the connection partner,

the insulating coating is formed around the 2 nd portion.

3. The circuit arrangement of claim 1 or claim 2,

the plurality of layers has a 1 st layer and a 2 nd layer,

the plurality of types of terminals include a layer 1 terminal and a layer 2 terminal,

the 2 nd layer is closer to the side where the terminal is inserted than the 1 st layer,

the layer 1 terminal is a terminal connected to the layer 1,

the layer 2 terminal is connected to the layer 2 layer and is shorter than the layer 1 terminal.

4. The circuit arrangement of claim 3,

the hole formed in the 1 st layer is smaller than the hole formed in the 2 nd layer,

the layer 1 terminal penetrates the hole formed in the layer 1 and the hole formed in the layer 2 and is connected to the layer 1,

the layer 2 terminal penetrates the hole formed in the layer 2 and is connected to the layer 2, and is formed larger than the hole formed in the layer 1.

5. The circuit arrangement of any one of claims 1 to 4,

each of the plurality of layers has a different thickness.

6. The circuit arrangement of any one of claims 1 to 5,

the plurality of layers include a plurality of voltage layers in which voltage values in the connection member are different from each other.

7. The circuit arrangement of claim 6,

the plurality of voltage layers are stacked such that the voltage values increase in order from the side where the terminal is inserted.

8. The circuit arrangement of claim 6 or claim 7,

the plurality of voltage planes includes a 1 st voltage plane and a 2 nd voltage plane, the 1 st voltage plane being connected with a 1 st battery having a 1 st voltage value, the 2 nd voltage plane being connected with a 2 nd battery having a 2 nd voltage value lower than the 1 st voltage value.

9. The circuit arrangement of any one of claims 1 to 8,

the plurality of layers includes a communication layer.

10. The circuit arrangement of claim 9,

and an electronic control unit is also provided,

the electronic control unit is connected to the communication layer, and selectively transmits, to the communication layer, a signal to be transmitted to an appliance connected to the communication layer, among signals transmitted from an external device.

Technical Field

The present disclosure relates to a circuit arrangement.

Background

The laminated joint connector described in patent document 1 includes: a laminate body formed by laminating a plurality of single-layer units in which a plurality of laminated terminals are arranged on a plane in a single-layer case; and a plurality of male terminals penetrating the laminated body in the laminating direction to selectively connect the laminated terminals, wherein the laminated joint connector connects the laminated terminals between different layers by the male terminals.

In the electrical junction box described in patent document 2, a plurality of module boards are stacked by connecting wires to connecting members arranged on the module boards, respectively, to form a stacked body of the module boards, and connecting bars passing through the layers are inserted into the stacked body of the module boards, whereby the connecting members between the layers are electrically connected to each other by the connecting bars, thereby forming a desired circuit as a whole.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2004-30993

Patent document 2: japanese laid-open patent publication No. 2002-10444

Disclosure of Invention

Problems to be solved by the invention

In the laminated type joint connector described in patent document 1, when the circuit configuration is changed, it is necessary to plug and unplug the electric wire and to confirm the connection partner of the terminal. Similarly, in the electrical connection box described in patent document 2, when the circuit configuration is changed, the electric wire connection component needs to be replaced, and the electrical connection component needs to be removed.

Therefore, an object is to provide a technique for easily coping with a design change at a connection portion of a circuit.

Means for solving the problems

The circuit device of the present disclosure includes a laminated body including a plurality of layers, a plurality of holes penetrating the plurality of layers being formed in the laminated body, each of the plurality of layers having a connecting member formed of a conductor, the connecting member having a plurality of connecting portions provided at positions corresponding to the plurality of holes and a connecting portion connecting the plurality of connecting portions to each other, and a plurality of types of terminals corresponding to the plurality of layers, the plurality of types of terminals being inserted into any of the plurality of holes and being selectively connectable to the connecting portion of any of the plurality of layers.

Effects of the invention

According to the present disclosure, design change at a connection portion of a circuit becomes easy.

Drawings

Fig. 1 is a plan view showing a circuit device according to embodiment 1.

Fig. 2 is a schematic sectional view taken along line II-II in fig. 1.

Fig. 3 is an exploded perspective view showing one layer in the layered body.

Fig. 4 is a block diagram showing a connection example when the circuit device is applied to a vehicle.

Fig. 5 is a block diagram showing an example of wiring when the circuit device is applied to a vehicle.

Fig. 6 is a side view showing a circuit device of embodiment 2.

Fig. 7 is a side view showing a circuit device of embodiment 3.

Fig. 8 is an exploded perspective view showing a circuit device according to embodiment 4.

Fig. 9 is an exploded perspective view showing a modification of the multilayer body.

Fig. 10 is an exploded perspective view showing another modification of the layered body.

Detailed Description

[ description of embodiments of the present disclosure ]

First, embodiments of the present disclosure will be described.

The circuit arrangement of the present disclosure is as follows.

(1) The multilayer body includes a plurality of layers, a plurality of holes penetrating the plurality of layers are formed in the multilayer body, each of the plurality of layers includes a connecting member formed of a conductor, the connecting member includes a plurality of connecting portions provided at positions corresponding to the plurality of holes and connecting portions connecting the plurality of connecting portions to each other, the plurality of terminals include a plurality of types of terminals corresponding to the plurality of layers, and the plurality of types of terminals are inserted into any of the plurality of holes and can be selectively connected to the connecting portion of any of the plurality of layers.

The plurality of terminals are provided in a plurality of types corresponding to the plurality of layers, and the plurality of types of terminals are inserted into any of the plurality of insertion openings and can be selectively connected to the connection portion of any of the plurality of layers.

(2) The plurality of types of terminals may include a terminal with a covering portion including a terminal body having a 1 st portion corresponding to a layer as a connection partner and a 2 nd portion corresponding to a layer that is not a connection partner, and an insulating covering portion formed around the 2 nd portion. In this case, the insulating coating portion can suppress the connection between the terminal body and the layer that is not the connection partner.

(3) The plurality of layers may have a 1 st layer and a 2 nd layer, the plurality of types of terminals may include a 1 st layer terminal and a 2 nd layer terminal, the 2 nd layer may be closer to the side where the terminal is inserted than the 1 st layer, the 1 st layer terminal may be a terminal connected to the 1 st layer, and the 2 nd layer terminal may be a terminal connected to the 2 nd layer and may be shorter than the 1 st layer terminal. In this case, the 2 nd layer terminal is shorter than the 1 st layer terminal, and therefore, connection to the 1 st layer is not easy.

(4) The hole formed in the 1 st layer may be smaller than the hole formed in the 2 nd layer, the 1 st-layer terminal may penetrate the hole formed in the 1 st layer and the hole formed in the 2 nd layer and be connected to the 1 st layer, and the 2 nd-layer terminal may penetrate the hole formed in the 2 nd layer and be connected to the 2 nd layer, and may be larger than the hole formed in the 1 st layer. In this case, the layer 2 terminal is not easily inserted through the hole formed in the layer 1, and therefore the layer 2 terminal is not easily connected to the layer 1.

(5) Each of the plurality of layers may have a different thickness. In this case, the interval of the portion of the terminal connected to the layer is different, and thus the use in a state where the insertion is insufficient can be suppressed.

(6) The plurality of layers may include a plurality of voltage layers having different voltage values in the connection member. In this case, the terminals can be selectively connected to different power supply voltages.

(7) The plurality of voltage layers may be stacked such that the voltage values increase in order from the side where the terminal is inserted. In this case, it is easy to suppress erroneous connection between the terminal for the low-voltage layer and the high-voltage layer.

(8) The plurality of voltage planes may include a 1 st voltage plane and a 2 nd voltage plane, the 1 st voltage plane being connected to a 1 st cell having a 1 st voltage value, and the 2 nd voltage plane being connected to a 2 nd cell having a 2 nd voltage value lower than the 1 st voltage value. In this case, different power supply voltages can be easily supplied.

(9) The plurality of layers may include a communication layer. In this case, the communication line can be connected to the communication layer.

(10) The electronic control unit may be connected to the communication layer, and may selectively transmit, to the communication layer, a signal transmitted to an appliance connected to the communication layer, among signals transmitted from an external device. In this case, it is possible to give up selection of whether or not the signal is for an appliance connected to the communication layer.

[ details of embodiments of the present disclosure ]

Specific examples of the circuit device of the present disclosure will be described below with reference to the drawings. The present invention is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[ embodiment 1]

Hereinafter, a circuit device according to embodiment 1 will be described. Fig. 1 is a plan view showing a circuit device 10 according to embodiment 1. Fig. 2 is a schematic sectional view taken along line II-II in fig. 1. In fig. 2, the terminal 40 is not shown in a sectional view. Fig. 3 is an exploded perspective view showing one layer 22 in the layered body 20.

The circuit device 10 includes a laminate 20 and a plurality of terminals 40. The laminate 20 includes a plurality of (here, six) layers 22. The laminate 20 has a plurality of holes 24 formed through the plurality of layers 22. A terminal 40 can be inserted into each hole 24. The opening of the hole 24 in the laminated body 20 is formed as an insertion port into which the terminal 40 is inserted. The terminal 40 inserted into the hole 24 is electrically connected to any one of the plurality of layers 22. In the laminate 20, the different layers 22 are not electrically connected to each other. The layers 22 have a common structure. However, the layers may also have different structures. Hereinafter, when six layers 22 need to be distinguished, they may be referred to as layers 22a, 22b, 22c, 22d, 22e, and 22 f.

Each layer 22 has a connecting member 26 formed of a conductor. The connecting member 26 has a plurality of connecting portions 27 and a coupling portion 28 that connects the plurality of connecting portions 27 to each other. The plurality of connecting portions 27 are provided at positions corresponding to the plurality of holes 24, respectively. In the single layer 22, since the plurality of connection portions 27 are connected by the connection portions 28, the plurality of connection portions 27 have the same potential. In this example, a plurality of holes 29 are formed in the flat plate-like member to form the coupling portion 28. The connecting portion 27 has a pair of plate-like portions formed to project from the peripheral edge portion of the hole 29 in the axial direction of the hole 29. The plate-like portion is formed in a plate spring shape. More specifically, the portions from the base end portions to the intermediate portions of the pair of plate-like portions are formed so as to gradually approach each other to close the hole 29. The portions of the pair of plate-like portions from the intermediate portion to the distal end portion are formed so as to be gradually separated from each other and open the hole 29. The spacing between the closest portions of the pair of plate-like portions is smaller than the thickness dimension of the terminal 40. The leading end portion of the proximal portion is formed as a guide portion for introducing the terminal 40 into the proximal portion. Therefore, when the terminal 40 is inserted into the hole 24, the tip of the terminal 40 is guided from the guide portion toward the closest portion, which is enlarged and brought into contact with the terminal 40. Thereby, at least the closest portion of the connection portion 27 can be electrically connected to the terminal 40. Connecting portion 27 and coupling portion 28 may be formed separately and welded. A part of the flat plate-like member constituting coupling portion 28 may be cut and punched to form connecting portion 27.

The connecting members 26 of each layer 22 are supported in position. A certain position is a position where the positions of the holes 29 in the connecting member 26 coincide. Each layer 22 has a housing 30. The housing 30 can house the connecting member 26. The connecting member 26 housed in the case 30 is supported at a predetermined position in the case 30. The housings 30 are positioned and overlapped with each other, so that the connecting members 26 of the respective layers 22 are supported at a certain position in the laminated body 20. Therefore, the housing 30 functions as a support member that supports the connection member 26 at a predetermined position.

The housing 30 has a case 32 and a cover 36. The case 32 is formed in a rectangular parallelepiped box shape with one surface opened. The connecting member 26 can be housed inside the case 32. The cover 36 is formed in a square flat plate shape. The lid 36 can close the opening of the case 32 in a state where the connecting member 26 is housed inside the case 32. Here, the surface of the case 32 facing the stacking direction is open. Therefore, a plurality of holes 33 are formed in the bottom plate of the case 32 on the side opposite to the opening. Further, a plurality of holes 37 are also formed in the cover 36. The hole 33 in the bottom plate of the case 32 and the hole 37 in the cover 36 are formed at positions corresponding to the holes 29 in the connecting member 26. That is, with regard to the holes 33 in the bottom plate of the case 32 and the holes 37 in the cover 36, the same arrangement is made, and together with the holes 29 in the connecting member 26, a part of the holes 24 in the laminated body 20 is constituted. Further, the holes 33 and 37 are arranged in the same order among the plurality of housings 3.

In addition, the cover 36 in the case 30 other than the case 30 located at one end in the stacking direction may be omitted. In this case, the case 30 overlapping the case 30 with the omitted cover 36 on the opening portion side can be a cover for closing the opening portion of the case 30 with the omitted cover 36.

When a plurality of cases 30 are stacked, a fixing portion for fixing the stacked cases 30 to each other may be provided. For example, screw holes may be formed at corners of the case 32 as fixing portions, and the plurality of cases 30 may be fixed by screws. Further, for example, a convex portion and a concave portion for combining the cases 32 may be formed as the fixing portions.

The plurality of terminals 40 include a plurality of types of terminals 40a, 40b, 40c, 40d, 40e, and 40f corresponding to the plurality of layers 22, respectively. The plurality of types of terminals 40a, 40b, 40c, 40d, 40e, and 40f are inserted into any of the holes 24 in the plurality of holes 24, and can be selectively connected to the connection portions 27 of the corresponding layers 22a, 22b, 22c, 22d, 22e, and 22f in any of the plurality of layers 22. Here, the following explanation is assumed: terminal 40a is connected to layer 22a, terminal 40b is connected to layer 22b, terminal 40c is connected to layer 22c, terminal 40d is connected to layer 22d, terminal 40e is connected to layer 22e, and terminal 40f is connected to layer 22 f.

The plural kinds of terminals 40a, 40b, 40c, 40d, 40e, 40f are tape covering portion terminals. The tape covered terminal has a terminal main body 42 and an insulating cover 46. The terminal body 42 is formed by a conductor. The terminal main body 42 has a 1 st portion corresponding to the layer 22 as a connection partner and a 2 nd portion corresponding to the layer 22 which is not a connection partner. An insulating coating 46 is formed around the 2 nd part. The terminal main bodies 42 of the plural kinds of terminals 40a, 40b, 40c, 40d, 40e, and 40f are formed in a common shape. By providing the insulating coating 46 at different positions with respect to the terminal main bodies 42 having a common shape, a plurality of types of terminals 40a, 40b, 40c, 40d, 40e, and 40f corresponding to the respective layers 22 can be obtained.

In this way, the plurality of types of terminals 40a, 40b, 40c, 40d, 40e, and 40f can be connected to the predetermined layer 22 by being inserted into the multilayer body 20. The plurality of types of terminals 40a, 40b, 40c, 40d, 40e, and 40f can be disconnected from the predetermined layer 22 by being pulled out from the multilayer body 20. Therefore, by attaching and detaching the plurality of types of terminals 40a, 40b, 40c, 40d, 40e, and 40f to and from the multilayer body 20, it is possible to cope with design changes in the circuit device 10.

The plurality of terminals 40 are held by the holding member 50. Consider for example the following: the plurality of terminals 40 are grouped in units of equipment, systems, and the like, and are held by different holding members 50 for each group. Thereby, the plurality of terminals 40 held by the holding member 50 can be collectively attached to and detached from the multilayer body 20. The terminals 40 protrude from the holding member 50 by a predetermined length amount. The holding member 50 may be in contact with the surface of the laminated body 20 in a state where the terminal 40 is inserted into the laminated body 20 by a predetermined length amount. In this case, the holding member 50 suppresses the insertion amount of the terminal 40 into the laminated body 20 from becoming excessive. The holding member 50 is also considered to be a part of the machine, and is also considered to be a connector housing provided at an end of an electric wire extending from the machine.

< Circuit device in vehicle >

An example in which the circuit device 10 is applied to a vehicle will be described. Fig. 4 is a block diagram showing a connection example when the circuit device 10 is applied to a vehicle. Here, an example will be described in which the vehicle to which the circuit device 10 is applied is a vehicle having a plurality of batteries 60 and 61, such as a hybrid vehicle and an electric vehicle.

In the circuit device 10, the layers 22a, 22b, 22c, and 22d are voltage layers, the layer 22e is a ground layer, and the layer 22f is a communication layer. Thus, the plurality of layers 22 includes a plurality of voltage layers 22a, 22b, 22c, 22d, a ground layer 22e, and a communication layer 22 f. With the circuit device 10, the terminal 40 is inserted from the communication layer 22f side. In the circuit device 10, a communication layer 22f, a ground layer 22e, and a plurality of voltage layers 22d, 22c, 22b, and 22a are stacked in this order from the insertion port side of the terminal 40.

The plurality of voltage layers 22a, 22b, 22c, and 22d are stacked so that the voltage value increases in order from the insertion port side of the terminal 40 (the communication layer 22f side in the example shown in fig. 4). Therefore, the voltage level here increases in the order of voltage plane 22d, voltage plane 22c, voltage plane 22b, and voltage plane 22 a. For example, the voltage values in the voltage planes 22d, 22c, 22b, 22a are 3.3 volts, 5 volts, 12 volts, 24 volts, respectively. In this way, the plurality of layers 22 includes a plurality of voltage layers in which the voltage values in the connecting member 26 are different from each other. Consider for example the following: voltage layers of 3.3 volts and 5 volts are used as power sources for communication, and voltage layers of 12 volts and 24 volts are used as power sources other than for communication.

The plurality of voltage planes includes a 1 st voltage plane and a 2 nd voltage plane. The 1 st voltage plane is a voltage plane connected to the 1 st cell 60 having the 2 nd voltage value. The 2 nd voltage tier is connected to the 2 nd cell 61 having the 2 nd voltage value lower than the 2 nd voltage value. For example, the 1 st battery 60 is a driving battery, and the 2 nd battery 61 is an auxiliary battery. The 2 nd voltage value in the 1 st battery 60 is, for example, several hundred volts. The 2 nd voltage value in the 2 nd battery 61 is, for example, 12 volts.

In the example shown in fig. 4, the voltage plane 22a is connected to the driving battery 60, and the voltage planes 22b, 22c, and 22d are connected to the auxiliary battery 61. Thus, here voltage plane 22a is the 1 st voltage plane and voltage planes 22b, 22c, 22d are the 2 nd voltage planes. The voltage layer 22a may be connected to a driving battery 60 via a transformer (DC-DC converter) 64. This enables the voltage value of the driving battery 60 to be converted into a predetermined voltage value in the voltage layer 22 a. It is also conceivable that the voltage layers 22c and 22d set to a voltage value different from that of the auxiliary battery 61 are connected to the auxiliary battery 61 via DC-DC converters 65 and 66, respectively. This enables the voltage value of the auxiliary battery 61 to be converted into a predetermined voltage value in each of the voltage layers 22c and 22 d.

The power supply from the batteries 60 and 61 to the voltage layers 22a, 22b, 22c, and 22d may be performed from the insertion port of the terminal 40 in the laminate 20. That is, the terminal 40 provided at the end of the electric wire supplied with power from the batteries 60 and 61 may be inserted into the hole 24 in the laminate 20 and connected to the predetermined voltage layers 22a, 22b, 22c, and 22 d. The voltage layers 22a, 22b, 22c, and 22d may have battery connection ports to which terminals provided at ends of wires for supplying power from the batteries 60 and 61 are connected.

An Electronic Control Unit (ECU) 70 is connected to the communication layer 22 f. In this way, it is considered that the circuit device 10 further includes the ECU 70. The ECU70 selectively transmits to the communication layer 22f, among signals transmitted from external devices, a signal to be transmitted to a device connected to the communication layer 22 f. Thus, the machine connected to the communication layer 22f is less likely to receive an unnecessary signal. In the example shown in fig. 4, the terminals 40 in the ECU70 are inserted into the insertion ports of the terminals 40 in the multilayer body 20 and connected to the communication layer 22 f. However, the communication layer 22f may have an ECU connection port for connection to a terminal in the ECU 70.

The ground layer 22e is connected to the negative-side wiring of the device connected to the voltage layers 22a, 22b, 22c, and 22d in the circuit device 10. Here, only one ground layer 22e is provided in the circuit device 10. The ground layer 22e is connected to, for example, a vehicle body ground. The terminal at the end of the wiring used for connecting the ground layer 22e and the vehicle body ground is connected to a ground terminal connection port provided separately from the insertion port of the terminal 40 in the laminated body 20. Of course, the terminal at the end of the wiring used for connecting the ground layer 22e and the vehicle body ground may be inserted into the insertion port of the terminal 40 in the multilayer body 20 and connected to the ground layer 22 e. The ground layer 22e may also be connected to the negative side of the battery by a wire.

Fig. 5 is a block diagram showing an example of wiring when the circuit device 10 is applied to the vehicle 90. In the example shown in fig. 5, a plurality of (three in this case) circuit devices 10 are mounted on a vehicle 90. When it is necessary to distinguish between three circuit devices, the circuit devices are referred to as circuit devices 10a, 10b, and 10 c. The plurality of circuit devices 10 are connected to a drive battery 60 and an auxiliary battery 61, respectively. Thereby, power is supplied to the voltage planes 22a, 22b, 22c, and 22d in the respective circuit devices 10. The ECUs 70 in the plurality of circuit devices 10 are connected to the central ECU 72. In the vehicle, a plurality of devices 80 are connected to the plurality of circuit devices 10, respectively. Consider, for example, a plurality of machines 80 connected to circuit devices 10 located in their vicinity. It is also conceivable that a plurality of devices 80 are connected to the circuit device 10 located in the same space as itself (for example, an engine room, an instrument panel, a door, a vehicle compartment, a trunk, and the like).

In the example shown in fig. 5, devices 80a, 80b, and 80c (e.g., headlamps, sensors, and the like) mounted on the front portion of vehicle 90 are connected to circuit device 10a mounted on the front portion of vehicle 90. Further, devices 80d, 80e, and 80f (for example, door locks, power windows, and rearview mirrors) mounted on the doors are connected to the circuit device 10b mounted on the doors. Devices 80g, 80h, and 80i (e.g., a backlight and a sensor) mounted on the rear portion of the vehicle 90 are connected to a circuit device 10c mounted on the rear portion of the vehicle 90.

According to the circuit device 10 configured as described above, the plurality of types of terminals 40a, 40b, 40c, 40d, 40e, and 40f corresponding to the plurality of layers 22 are provided as the plurality of terminals 40, and the plurality of types of terminals 40a, 40b, 40c, 40d, 40e, and 40f are inserted into any of the plurality of insertion openings and can be selectively connected to the connection portion 27 of any of the plurality of layers 22, so that the connection to the predetermined layer 22 is possible by the insertion and extraction of the terminals 40, and the design change can be easily coped with at the connection portion of the circuit. Since the tape-covered terminal having the terminal main body 42 and the insulating cover 46 is used, connection with the layer 22 which is not a connection partner with the terminal main body 42 can be suppressed by the insulating cover 46.

The plurality of layers 22 include a plurality of voltage layers 22a, 22b, 22c, 22d having voltage values different from each other in the connecting member 26, and thus the terminal 40 can be selectively connected to different power supply voltages. Since the plurality of voltage layers 22a, 22b, 22c, and 22d are stacked so that the voltage value increases in order from the side where the terminal 40 is inserted, it is easy to suppress erroneous connection between the terminal 40d for the low-voltage layer 22d and the high-voltage layer 22 a. Since the plurality of voltage planes 22a, 22b, 22c, and 22d include the 1 st voltage plane 22a connected to the 1 st cell 60 having the 2 nd voltage value and the 2 nd voltage planes 22b, 22c, and 22d connected to the 2 nd cell 61 having the 2 nd voltage value lower than the 2 nd voltage value, different power supply voltages can be easily supplied.

Since the plurality of layers 22 include the communication layer 22f, communication lines can be connected to the communication layer 22 f. The electronic control unit 70 is connected to the communication layer 22f, and can selectively transmit to the communication layer 22f a signal to be transmitted to the device 80 connected to the communication layer 22f among signals transmitted from external devices, so that it is possible to select whether or not the signal is a signal for the device 80 connected to the communication layer 22 f.

[ embodiment 2]

A circuit device of embodiment 2 will be explained. Fig. 6 is a side view showing the circuit device 110 of embodiment 2. In the description of the present embodiment, the same components as those described above are denoted by the same reference numerals, and the description thereof is omitted. The same applies to the following description of the embodiments.

In embodiment 1, the connecting member 26 is formed in a plate spring shape, but in this example, the terminal 140 is formed in a plate spring shape. In more detail, in this example, the connecting member 126 is formed by forming a plurality of holes 29 in the conductor plate. The plurality of connecting members 126 are insulated from each other by an insulating portion 138. Thereby, the connection members 126 of the adjacent layers 122 can be suppressed from being connected to each other. For example, the insulating portion 138 is formed by disposing an insulating plate between the plurality of connection members 126 or by forming an insulating coating on the surface of the connection members 126. The insulating portion 138 is provided so as not to close the hole 29 in the connecting member 126. In other words, a hole corresponding to the hole 29 is also formed in the insulating portion 138.

The terminal 140 includes a terminal body 142 and an insulating cover 46. The terminal main body 142 has a plurality of contact portions 143 and a linking plate portion 144. The contact 143 is inserted into the hole 29 of the connection member 126 to be electrically connected to the connection member 126. The contact 143 is formed in a plate spring shape. The plurality of contact portions 143 are arranged in one direction. The linking plate portion 144 connects the plurality of contact portions 143 to each other. For example, the terminal body 142 is formed by bending a conductor plate. The insulating cover 46 is formed in the terminal main body 142 except for the contact portion 43 corresponding to the layer 122 to be a connection partner.

[ embodiment 3]

A circuit device of embodiment 3 will be explained. Fig. 7 is a side view showing the circuit device 210 of embodiment 3.

In this example, each of the plurality of layers 222 has a different thickness. Here, similarly to the example shown in fig. 6, an example in which the terminal 240 is formed in a plate spring shape will be described. Of course, the connecting member 26 may be formed in a plate spring shape as in the example shown in fig. 1.

In the example shown in fig. 7, the connecting members 126 have the same thickness. In the example shown in fig. 7, the thickness of each of the plurality of layers 222 is different due to the difference in the thickness of the insulating portion 238. Of course, the thickness of each of the plurality of layers 222 may also be different by the thickness of the connecting member 126.

The intervals between the contact portions 243 in the terminal main body 242 are different so as to correspond to the difference in thickness of each of the plurality of layers 222. Here, the length of the connecting plate portion 244 connecting the contact portions 243 is different. Thus, in a state where the terminal 240 connected to the lower layer 222 of the multilayer body 220 is inserted into the layer 222 above the layer 222, that is, in a state where the terminal 240 is insufficiently inserted, the terminal 240 and the multilayer body 220 are likely to rattle. As a result, the terminal 240 can be prevented from being used in a state of insufficient insertion into the multilayer body 220.

In the example shown in fig. 7, the plurality of layers 222 are arranged in order of the thin thickness, but this is not a necessary structure. The order of the plurality of layers can be set as appropriate.

[ embodiment 4]

A circuit device of embodiment 4 will be explained. Fig. 8 is an exploded perspective view showing a circuit device 310 according to embodiment 4.

The plurality of layers in circuit device 310 includes layer 1 322a and layer 2 322 b. The 2 nd layer 322b is a layer closer to the side where the terminal is inserted than the 1 st layer 322 a. The aperture 324a formed in the 1 st layer 322a is smaller than the aperture 324b formed in the 2 nd layer 322 b.

The plurality of types of terminals in the circuit device 310 include a layer 1 terminal 340a and a layer 2 terminal 340 b. The layer 1 terminal 340a is a terminal connected to the layer 1 322 a. The layer 1 terminal 340a penetrates the hole 324b formed in the layer 2 322b and the hole 324a formed in the layer 1 322a and is connected to the layer 1 322 a. An insulating coating portion 46 is formed around the terminal main body 342 at a portion of the layer 1 terminal 340a not connected to the layer 1 322a, more specifically, a portion received in the hole 324b of the layer 2 322b in a state where the layer 1 terminal 340a is connected to the layer 1 322 a. The layer 2 terminal 340b is a terminal connected to the layer 2 322 b. The layer 2 terminal 340b penetrates the hole 324b formed in the layer 2 322b and is connected to the layer 2 322 b. The terminal 340b for layer 2 is shorter than the terminal 340a for layer 1. The layer 2 terminal 340b is formed larger than the hole 324a formed in the layer 1 322 a.

In this way, when the layer 2 terminal 340b is shorter than the layer 1 terminal 340a, the layer 2 terminal 340b is not easily connected to the layer 1 terminal 322 a. In addition, when the layer 2 terminal 340b is larger than the hole 324a formed in the layer 1 322a, the layer 2 terminal 340b is less likely to penetrate through the hole 324a formed in the layer 1 322a, and therefore the layer 2 terminal 340b is less likely to be connected to the layer 1 322 a.

In this example, the holes 324a and 324b are formed in a T shape when viewed from the axial direction. Accordingly, the terminals 340a and 340b are also formed in a T shape when viewed from the axial direction. Of course, the shapes of the holes 324a and 324b and the terminals 340a and 340b viewed from the axial direction do not have to be T-shaped, and may be square, circular, or the like. The layer 1 terminal 340a is formed so as to be continuous in the axial direction in size corresponding to the hole 324a formed in the layer 1 322a, but this is not necessarily required.

[ accompanying notes ]

In embodiment 1, the explanation will be made on the assumption that one connecting member 26 is housed in one case 30, but this is not essential. As shown in fig. 9, a plurality of connecting members 26 may be housed in a stacked state in one case 430. In this case, the laminated body may have only one case 430, or may have a plurality of cases. In the case where the laminated body has a plurality of cases, the plurality of cases may include cases in which the number of the housed connecting members 26 is different.

As shown in fig. 9, the case 432 may have an opening on a surface facing in a direction perpendicular to the stacking direction of the connecting members 26. In the case 432, holes 33 and 37 are formed in the pair of side walls, respectively. Here, the side wall of the case 432 is a surface perpendicular to the bottom plate located on the opposite side of the opening. When a plurality of connecting members 26 are housed in the case 432, an edge support portion 34 may be formed in the case 432, and the edge support portion 34 may support an edge portion of the connecting portion 28 of the connecting member 26. The edge support portion 34 is formed, for example, in a side wall of the case 432 where the holes 33, 37 are not formed. The edge support portion 34 is formed in a groove shape extending from the opening portion side toward the floor side in the side wall. However, a partition plate may be provided in the case 432 instead of the edge support portion 34. The partition is formed in a plate shape parallel to the side wall where the holes 33 and 37 are formed, for example, and divides the internal space of the single tank 432 in the stacking direction. The connecting members 26 are housed in respective spaces partitioned by the partition plate. The partition plate has holes formed therein corresponding to the holes 33 and 37.

In embodiment 1, the layered body 20 is configured to include six layers 22, but this is not necessarily a structure. The laminate 20 may be configured to include two layers, three layers, four layers, or five layers, and may be configured to include seven or more layers. In embodiment 1, the multilayer body 20 includes the voltage layers 22a, 22b, 22c, and 22d, the communication layer 22f, and the ground layer 22e, but this is not an essential configuration. Among the voltage layers 22a, 22b, 22c, and 22d, the communication layer 22f, and the ground layer 22e, the voltage layers 22a, 22b, 22c, and 22d may be omitted, the communication layer 22f may be omitted, and the ground layer 22e may be omitted. Of the voltage layers 22a, 22b, 22c, and 22d, the communication layer 22f, and the ground layer 22e, two of the communication layer 22f and the ground layer 22e may be omitted. The laminate 20 may also include at least one voltage plane.

Although the circuit device 10 is described as being applied to the vehicle 90 including the plurality of batteries 60 and 61 in embodiment 1, this is not essential. As shown in fig. 10, the circuit device 510 may be applied to a vehicle (e.g., an engine vehicle) having only one battery 62. In this case, when the plurality of layers 522 include a plurality of voltage layers 522a and 522b, at least one of the plurality of voltage layers 522a and 522b may be connected to the one battery 62 through the DC-DC converters 67 and 68. In the case of an engine car, it is also conceivable that the voltage layers 522a and 522b are connected to an alternator.

Although the description has been made assuming that the ground layer 22e is one in embodiment 1, this is not a necessary structure. For example, a ground layer may be provided separately for each voltage layer. For example, as shown in fig. 10, ground layers 522c, 522d, and 522e may be provided at positions across a plurality of voltage layers 522a and 522 b.

Although the description has been made assuming that the connection member 26 is a conductive plate in embodiment 1, this is not necessarily a structure. The connection member may be a conductive film or the like. In this case, the connecting member such as a conductive film may be formed on the surface of the insulating substrate. For example, it is considered that a conductor film is formed entirely on the surface of a substrate formed with a plurality of holes. In addition, also consider: for example, in the surface of a substrate on which a plurality of holes are formed, a connecting portion is formed at the periphery of the hole, and a connecting portion is formed so as to connect the peripheries of the holes.

The connection example in which the circuit device 10 is applied to the vehicle shown in embodiment 1 can also be grasped as a wiring system in the vehicle.

The configurations described in the embodiments and the modifications can be combined as appropriate as long as they do not contradict each other.

Description of the symbols

10. 10a, 10b, 10c, 110, 210, 310, 510 circuit arrangement

20. 220, 420 laminate

22. 122, 222, 522 layers

22a 1 st Voltage plane (Voltage plane, plane)

22b, 22c, 22d 2 nd voltage plane (voltage plane, plane)

522a, 522b voltage plane (layer)

22e, 522c, 522d, 522e ground plane (layer)

22f communication layer (layer)

322a layer 1 (layer)

322b layer 2 (layer)

24. 324a, 324b holes

26. 126 connecting member

27 connecting part

28 connecting part

29 holes

30 casing

32 boxes

33 holes

34 edge support

36 cover

37 holes

138. 238 insulating part

40. 140, 240 terminal

40a, 40b, 40c, 40d, 40e, 40f

340a layer 1 terminal

340b layer 2 terminal

42. 142, 242 terminal body

143. 243 contact part

144. 244 web portion

46 insulating coating part

50 holding member

60 1 st cell

61 nd 2 nd battery

62 batteries

64. 65, 66, 67, 68DC-DC converter

70 Electronic Control Unit (ECU)

72 central ECU

80. 80a, 80b, 80c, 80d, 80e, 80f, 80g, 80h, 80i machine

90 vehicle