Wire harness and connection structure

Abstract

To provide an art which can simplify connection work of a connector easily.SOLUTION: A wire harness 30 includes a first electric wire 31, a second electric wire 32, and a common connector 35. The first electric wire 31 connects an interlock connector 33 to an ECU 16. The second electric wire 32 transmits a detection signal indicating a voltage value of an on-vehicle battery 12 to the ECU 16. The common connector 35 connects the first electric wire 31 and the second electric wire 32 to the ECU 16.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a wire harness and a connection structure. [Background technology]

[0002] Patent Document 1 discloses a wire harness that connects an interlock connector to an ECU. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-138570 Summary of the Invention [Problem to be solved by the invention]

[0004] When an electric wire for transmitting a detection signal indicating the voltage value of the vehicle battery is connected to the ECU separately from the wire harness, there is a problem that the work of connecting connectors tends to increase.

[0005] The present disclosure aims to provide a technique that can easily simplify the work of connecting connectors. [Means for solving the problem]

[0006] The wire harness of the present disclosure includes: a first wire connecting the interlock connector to the ECU; a second electric wire for transmitting a detection signal indicating a voltage value of the vehicle battery to the ECU; and a common connector that connects the first electric wire and the second electric wire to the ECU.

[0007] The connection structure of the present disclosure includes: The wire harness of the present disclosure; The wire harness is provided with a base material to which the wire harness is fixed at a position where the wire harness can be connected to each connection object. [Effects of the Invention]

[0008] According to the technology of the present disclosure, the connector connection work can be easily simplified. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a plan view showing a state before a connection structure of a first embodiment is connected to a connection object. [Figure 2] FIG. 2 is a plan view showing a state in which the connection structure of the first embodiment is connected to a connection object. [Figure 3] FIG. 3 is an explanatory view showing a state in which the interlock connector is temporarily held in the temporary holding portion. [Figure 4] FIG. 4 is an explanatory diagram showing a state in which the interlock connector is connected to a connection target. DETAILED DESCRIPTION OF THE INVENTION

[0010] [Description of the embodiments of the present disclosure] First, embodiments of the present disclosure will be listed and described.

[0011] [1] A first electric wire connecting the interlock connector to the ECU; a second electric wire for transmitting a detection signal indicating a voltage value of the vehicle battery to the ECU; a common connector that connects the first electric wire and the second electric wire to the ECU. Wire harness.

[0012] According to the above-described wire harness, the first electric wire and the second electric wire can be connected to the ECU together by a common connector, which means that the wire harness can easily simplify the work of connecting the connectors.

[0013] [2] The wire harness according to [1], and a base material to which the wire harness is fixed at a position where the wire harness can be connected to each connection object. Connection structure.

[0014] According to this configuration, the wire harness is fixed at a position where it can be connected to each connection object. Therefore, a worker can position the wire harness and each connection object at a position where they can be connected by simply placing each connection object at a predetermined position and then installing the connection structure. In other words, the above-mentioned connection structure simplifies the work of connecting the wire harness to each connection object.

[0015] [3] The interlock connector is provided with a temporary holding portion that temporarily holds the interlock connector in a state in which the interlock connector can be displaced in the connection direction. The connection structure described in [2].

[0016] According to this configuration, the interlock connector can be temporarily held by the temporary holding portion, and the temporarily held interlock connector can be connected to a connection target by being displaced.

[0017] [4] A connection structure for connecting a plurality of on-board devices to an electrical connection box mounted on a vehicle, a plurality of wiring portions fixed to the base material; The plurality of wiring sections connect the in-vehicle devices to the electrical connection box. The connection structure according to [2] or [3].

[0018] According to the above-described connection structure, the wiring portion connecting each on-board device to the electrical junction box is fixed to the base material in advance. Therefore, a worker can simply place the electrical junction box and each on-board device in their predetermined positions and then install the connection structure to position the wiring portion so that it can be connected to the electrical junction box and each on-board device. In other words, the above-described connection structure simplifies not only the work of connecting the wire harness to each connection target, but also the work of connecting multiple on-board devices to the electrical junction box.

[0019] [5] The in-vehicle device includes the in-vehicle battery, The wiring portion that connects the vehicle battery to the electrical junction box is disposed near an end of the base material in a plan view. The connection structure described in [4].

[0020] The wiring portion connected to the vehicle battery is prone to heat generation due to the large current flowing through it. If the heat from the wiring portion is transmitted to the wire harness via the substrate, noise may be generated in the signals transmitted by the wire harness. In the above configuration, the wiring portion that is prone to heat generation is positioned close to the edge of the substrate. This makes it easier for the heat from the wiring portion to be released to the outside of the substrate. In other words, this configuration can suppress heat generation in the substrate.

[0021] [Details of the embodiments of the present disclosure] 1. First embodiment 1 and 2 disclose an in-vehicle system 1 according to a first embodiment. The in-vehicle system 1 is a system mounted on a vehicle. The in-vehicle system 1 includes an electric junction box 10 and a plurality of in-vehicle devices 11. The plurality of in-vehicle devices 11 includes an in-vehicle battery 12, an inverter 13, and a high-voltage auxiliary device 14. Each of the in-vehicle devices 11 is electrically connected to the electric junction box 10. Power from the in-vehicle battery 12 is supplied to the inverter 13 and the high-voltage auxiliary device 14 via the electric junction box 10.

[0022] The in-vehicle system 1 includes a connection structure 20. The connection structure 20 connects a plurality of in-vehicle devices 11 to the electrical junction box 10. The connection structure 20 includes a base material 21 and a plurality of wiring portions 22 fixed to the base material 21. The base material 21 has insulating properties. The base material 21 is made of, for example, resin.

[0023] The plurality of wiring sections 22 connect each on-board device 11 to the electrical junction box 10. Each wiring section 22 is formed by a bus bar 23. A bolt insertion hole 25 is formed in the bus bar 23. The bolt insertion hole 25 penetrates in the vertical direction. The electrical junction box 10 is provided with a bolt fastening section 10A. The bolt fastening section 10A is provided on the upper part of the electrical junction box 10. Each on-board device 11 is provided with a bolt fastening section 11A. The bolt fastening section 11A is provided on the upper part of the on-board device 11. The connection structure 20 is placed on top of the electrical junction box 10 and the on-board device 11. The connection structure 20 is installed between the electrical junction box 10 and the on-board device 11. A bolt 80 is inserted into the bolt insertion hole 25 and fixed to the bolt fastening sections 10A, 11A. That is, each bus bar 23 is fixed to the electric junction box 10 and each in-vehicle device 11 using a bolt 80 .

[0024] The wiring portions 22 that connect the vehicle battery 12 to the electrical junction box 10 are arranged close to the ends of the substrate 21 in a plan view. The spacing between the wiring portions 22 is adjusted taking into account the magnitude of the current that flows.

[0025] The in-vehicle system 1 includes a sensor device 15 and an ECU 16. The sensor device 15 detects, for example, the voltage of the in-vehicle battery 12 and transmits a detection signal indicating the voltage value of the in-vehicle battery 12. The ECU 16 is an electronic control unit.

[0026] The in-vehicle system 1 includes a wire harness 30. The wire harness 30 connects the inverter 13 and the high-voltage auxiliary device 14 to the ECU 16, and also connects the sensor device 15 to the ECU 16. The wire harness 30 includes a first electric wire 31, a second electric wire 32, an interlock connector 33, a sensor-side connector 34, and a common connector 35.

[0027] The first electric wire 31 is a coated electric wire. A plurality of first electric wires 31 are provided. One end of each first electric wire 31 is held by an interlock connector 33. Each interlock connector 33 is connected to each on-board device 11 (e.g., inverter 13, high-voltage auxiliary device 14, etc.). Each interlock connector 33 is a connector that connects an interlock circuit to the on-board device 11. The interlock circuit has the function of cutting off current flowing between the on-board device 11 and the ECU 16 in the event of an abnormality, etc. The second electric wire 32 is a coated electric wire. One end of the second electric wire 32 is held by a sensor-side connector 34. The sensor-side connector 34 is connected to the sensor device 15. The other end of each first electric wire 31 and the other end of the second electric wire 32 are collectively held by a common connector 35. The common connector 35 is connected to the ECU 16.

[0028] The wire harness 30 is fixed to the base material 21. The wire harness 30 is fixed at a position where it can be connected to each connection object. The connection objects are the inverter 13, the high-voltage auxiliary device 14, the sensor device 15, the ECU 16, etc. In other words, each interlock connector 33 is fixed at a position where it can be connected to each on-board device 11. The sensor-side connector 34 is fixed at a position where it can be connected to the sensor device 15. The common connector 35 is fixed at a position where it can be connected to the ECU 16. The interlock connector 33, the sensor-side connector 34, and the common connector 35 are arranged on opposite sides of the base material 21.

[0029] As shown in FIGS. 3 and 4 , the connection structure 20 includes a temporary holding portion 40. The temporary holding portion 40 temporarily holds the interlock connector 33 so that the interlock connector 33 is displaceable in the connection direction. In the example shown in FIGS. 3 and 4 , the temporary holding portion 40 is provided on the interlock connector 33. The temporary holding portion 40 is formed, for example, by a leaf spring protruding outward from the outer periphery of the interlock connector 33. The interlock connector 33 is displaceable in the connection direction by fitting into the holding hole 21A of the base material 21. Furthermore, the interlock connector 33 is temporarily held on the base material 21 by the temporary holding portion 40 being caught on the peripheral portion of the holding hole 21A. When the interlock connector 33 is pressed in the connection direction, the leaf spring constituting the temporary holding portion 40 is pressed by the peripheral portion of the holding hole 21A and bends inward, releasing the temporary holding state and displacing in the connection direction. As a result, the interlock connector 33 is connected to each in-vehicle device 11.

[0030] As described above, according to the wire harness 30, the first electric wire 31 and the second electric wire 32 can be connected to the ECU 16 collectively by the common connector 35. In other words, according to the wire harness 30, the work of connecting the connectors can be easily simplified.

[0031] According to the connection structure 20, the wire harness 30 is fixed at a position where it can be connected to each connection object. Therefore, a worker can position the wire harness 30 and each connection object at a position where they can be connected by simply placing each connection object in a predetermined position and then installing the connection structure 20. In other words, according to the connection structure 20, the work of connecting the wire harness 30 to each connection object can be simplified.

[0032] According to the connection structure 20, the interlock connector 33 can be temporarily held by the temporary holding portion 40, and the temporarily held interlock connector 33 can be displaced to connect to the connection object.

[0033] According to the connection structure 20, the wiring portion 22 that connects each on-board device 11 to the electrical junction box 10 is fixed to the base material 21 in advance. Therefore, a worker can position the wiring portion 22 in a position where it can be connected to the electrical junction box 10 and each on-board device 11 simply by placing the electrical junction box 10 and each on-board device 11 in predetermined positions and then installing the connection structure 20. In other words, the connection structure 20 simplifies not only the work of connecting the wire harness 30 to each connection target, but also the work of connecting multiple on-board devices 11 to the electrical junction box 10.

[0034] The wiring portion 22 connected to the vehicle battery 12 is prone to heat generation because a large current flows through it. If the heat from the wiring portion 22 is transmitted to the wire harness 30 via the substrate 21, noise may be generated in the signals transmitted by the wire harness 30. In the connection structure 20, the wiring portion 22, which is prone to heat generation, is positioned close to the end of the substrate 21. This makes it easier for the heat from the wiring portion 22 to be released to the outside of the substrate 21. In other words, the connection structure 20 can suppress heat generation from the substrate 21.

[0035] <Other embodiments> The present disclosure is not limited to the embodiments described above and in the drawings. For example, any combination of features of the above-described or following embodiments is possible within a range that does not contradict. Furthermore, any feature of the above-described or following embodiments may be omitted unless explicitly stated as essential. Furthermore, the above-described embodiment may be modified as follows.

[0036] (1) The wire harness does not have to be fixed to the substrate. (2) The connection structure may not have a temporary holding portion. (3) The wiring portion does not have to be fixed to the substrate. (4) The wiring portion that connects the vehicle battery to the electrical junction box does not have to be disposed close to the edge of the base material in a plan view. (5) The positional relationship between the connection structure, the electrical junction box, and the on-vehicle device is not limited to the configuration of the first embodiment. For example, the connection structure may be provided with a bolt fastening portion, and the electrical junction box may be formed with a bolt insertion hole that penetrates vertically. The electrical junction box may then be placed on top of the connection structure, and bolts may be inserted into the bolt insertion holes of the electrical junction box and fixed to the bolt fastening portion of the connection structure.

[0037] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is not limited to the embodiments disclosed herein, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0038] 1. In-vehicle systems 10...Electrical junction box 10A...Bolt fastening section 11…In-vehicle device 11A...Bolt fastening section 12...Automotive battery 13...Inverter 14...High-voltage auxiliary equipment 15...Sensor device 16...ECU 20...Connection structure 21...Base material 21A…Retaining hole 22...Wiring section 23... Bus bar 25...Bolt insertion hole 30...Wire harness 31...First electric wire 32...Second electric wire 33...Interlock connector 34...Sensor side connector 35...Common connector 40...Temporary holding part 80...volts

Claims

1. a first electric wire connecting the interlock connector to the ECU; a second electric wire for transmitting a detection signal indicating a voltage value of the vehicle battery to the ECU; a common connector for connecting the first electric wire and the second electric wire to the ECU. Wire harness.

2. The wire harness according to claim 1; and a base material to which the wire harness is fixed at a position where the wire harness can be connected to each connection object. Connection structure.

3. The interlock connector has a temporary holding portion that temporarily holds the interlock connector in a state where the interlock connector can be displaced in the connection direction. The connection structure according to claim 2 .

4. A connection structure for connecting a plurality of on-board devices to an electric connection box mounted on a vehicle, a plurality of wiring portions fixed to the base material; The plurality of wiring sections connect the in-vehicle devices to the electrical connection box. The connection structure according to claim 2 or 3.

5. the in-vehicle device includes the in-vehicle battery, The wiring portion that connects the vehicle battery to the electrical junction box is disposed near an end of the base material in a plan view. The connection structure according to claim 4 .

Images