Maintenance device for maintaining at least one electrical harness in the vicinity of a battery tray

Abstract

The invention relates to an assembly for a motor vehicle, comprising a battery tray (10), a computer support (12), in particular an engine computer support, which is fitted on the battery tray (10), and at least one electrical wiring harness (16.1, 16.2), the assembly comprising a guide channel (22), in which the electrical wiring harness (16.2) is arranged, the guide channel (22) being delimited on the one hand by a portion (23) of the computer support (12) and on the other hand by a portion (24) of the battery tray (10).

Description

Technical Field

[0001] This invention claims priority to French application No. 2100667, filed on January 25, 2021, the contents of which (text, drawings and claims) are incorporated herein by reference.

[0002] The present invention relates to a holding device for maintaining at least one electrical wiring harness near a battery tray. Background Technology

[0003] A particularly advantageous application of the invention is (but not limited to) hybrid motor vehicles that use thermal and electrical energy sources to ensure traction.

[0004] Figure 1 A battery tray 10 (particularly a tray for lead-acid batteries, which typically have an operating voltage of 12V) is shown. This battery tray 10 is for mounting on a thermal engine pad (not visible), which is positioned on the longitudinal member 11 of the vehicle. The battery tray 10 includes a bottom wall and side walls defining a space in which at least one power element capable of generating current through a chemical reaction is arranged.

[0005] A computer support 12 (particularly an engine computer support) is mounted on a battery tray 10. For this purpose, the support 12 is secured to the battery tray 10 by means of screws or rivets. The support 12 has the form of a generally rectangular disc. The support 12 is equipped with a fixing engagement 13, which is formed, for example, by a hole into which a fixing member (e.g., a screw) is inserted for engaging with the housing of the computer (not shown).

[0006] A DC / DC converter 15 is mounted on a battery tray 10. The DC / DC converter 15 can be secured to the side wall of the battery tray 10 via locking devices and / or fixing members (e.g., screws or rivets). The DC / DC converter 15 enables interconnection between a high-voltage electrical network, typically operating at 48V, and a low-voltage electrical network, typically operating at 12V.

[0007] The high-voltage electrical network includes power batteries electrically connected to one or more electric traction engines, such as lithium-ion (or Li-lon), nickel metal hydride (or Ni-Mh), or nickel-cadmium (Ni-Cd) batteries.

[0008] The low-voltage electrical network includes a battery associated with tray 10 and electrical consumers of the motor vehicle (e.g., lighting systems, window or seat actuators, engine computers, or even starters (in the case of hybrid vehicles including heat engines)).

[0009] The electrical harness 16.1 includes a first end and a second end, the first end being electrically connected to the terminals of the DC / DC converter 15, and the second end being electrically connected to the high-voltage electrical network. The high-voltage electrical network may, for example, be located at the rear of the vehicle, in cases where one or more electric motors are connected to the rear wheel axle.

[0010] The electrical harness 16.2 includes a first end and a second end, the first end being electrically connected to the negative terminal of the DC / DC converter 15, and the second end being electrically connected to a connection end 17 arranged on the longitudinal member 11 to form the grounding terminal of the motor vehicle.

[0011] To ensure cooling of the DC / DC converter, the DC / DC converter 15 may include an input terminal 18 and an output terminal 19 of an internal cooling circuit (especially a water-based cooling circuit).

[0012] In this configuration, the two electrical harnesses 16.1 and 16.2 are maintained and guided by a slot 20 located below the DC / DC converter 15. However, in some vehicle configurations, there is insufficient space for the harnesses 16.1 and 16.2 and the slot 20 to pass through due to the vibrating travel area of ​​the gearbox (reference numeral 21) near these components. Summary of the Invention

[0013] The present invention aims to effectively overcome this deficiency by providing a component for a motor vehicle, said component comprising:

[0014] - Battery tray

[0015] - Computer support components (especially engine computer support components) mounted on the battery tray, and

[0016] -At least one electrical wiring harness,

[0017] - The component includes a guide channel, the electrical wiring harness being arranged inside the guide channel, the guide channel being bounded on one side by a portion of the computer support and on the other side by a portion of the battery tray.

[0018] Due to the presence of the guide channel, the present invention enables the electrical harness to be moved to an area where the gearbox is unlikely to interfere with the electrical harness during its vibration stroke. The present invention also saves on electrical harness guide slots, which reduces the cost of the component. The present invention also reduces the number of assembly operations.

[0019] According to an embodiment of the present invention, the component further includes a DC / DC converter mounted on the battery tray.

[0020] According to an embodiment of the present invention, the electrical harness includes a first end and a second end, the first end being electrically connected to the DC / DC converter, and the second end being connected to a connection end disposed on a longitudinal member of the motor vehicle.

[0021] According to an embodiment of the present invention, the connecting end is positioned on the side of the wall of the battery tray that supports the computer support.

[0022] According to an embodiment of the present invention, the locking device is located in an extension of the portion of the computer support and the portion of the battery tray, the extension defining the guide channel.

[0023] According to an embodiment of the present invention, the locking device includes a connector from one of the elements in the computer support and the battery tray, the connector being configured to mate with a receiving portion disposed in the other of the elements in the computer support and the battery tray.

[0024] According to an embodiment of the present invention, the component further includes a guide slot into which a second electrical harness is inserted.

[0025] According to an embodiment of the present invention, the guide slot is arranged below the DC / DC converter.

[0026] The present invention also aims to provide a motor vehicle comprising the components as defined above. Attached Figure Description

[0027] The invention will be better understood by reading the following detailed description and accompanying drawings. These drawings are given only as non-limiting illustrative examples of the invention.

[0028] - Figure 1 (As described) illustrates a guiding mechanism that guides electrical wiring harnesses by means of guide slots arranged below a DC / DC converter;

[0029] - Figure 2A DC / DC converter is shown, the DC / DC converter including an electrical wiring harness arranged inside a guide channel according to the invention, the guide channel being bounded by a portion of a computer support and a portion of a battery tray;

[0030] - Figure 3 yes Figure 2 Detailed perspective view of the electrical wiring harness guide channel;

[0031] - Figure 4 This is a rear view of a computer support component, which includes a portion at one of its ends that defines an electrical harness guide channel. Detailed Implementation

[0032] From one figure to another, the same, similar or analogous elements retain the same figure reference numerals.

[0033] Figure 2 , Figure 3 and Figure 4 A battery tray 10 (particularly a tray for lead-acid batteries, typically operating at 12V) is shown. This battery tray 10 is for mounting on a thermal engine pad (not visible), which is positioned on the longitudinal member 11 of the vehicle. The battery tray 10 includes a bottom wall and side walls defining a space within which at least one power element capable of generating current through a chemical reaction is arranged.

[0034] The computer support component 12 (especially the engine computer support component 12) is mounted on the battery tray 10. For this purpose, the support component 12 is secured to the side wall of the battery tray 10 by means of screws or rivets. The support component 12 has the form of a generally rectangular disc, such as... Figure 2 and Figure 4 As shown above, the support member 12 is equipped with a fixing engagement 13, which is formed, for example, by a hole into which a fixing member (e.g., a screw) is inserted for engaging with the housing of the computer (not shown).

[0035] A DC / DC converter 15 is mounted on a battery tray 10. The DC / DC converter 15 can be secured to the side wall of the battery tray 10 via locking devices and / or fixing members (e.g., screws or rivets). The DC / DC converter 15 enables interconnection between a high-voltage electrical network, typically operating at 48V, and a low-voltage electrical network, typically operating at 12V.

[0036] The high-voltage electrical network includes power batteries electrically connected to one or more electric traction engines, such as lithium-ion (or Li-lon), nickel metal hydride (or Ni-Mh), or nickel-cadmium (Ni-Cd) batteries.

[0037] The low-voltage electrical network includes a battery associated with tray 10 and electrical consumers of the motor vehicle (e.g., lighting systems, window or seat actuators, engine computers, or even starters (in the case of vehicles including heat engines)).

[0038] The electrical harness 16.1 includes a first end and a second end, the first end being electrically connected to the terminals of the DC / DC converter 15, and the second end being electrically connected to the high-voltage electrical network. The high-voltage electrical network may, for example, be located at the rear of the vehicle, in cases where one or more electric motors are connected to the rear wheel axle.

[0039] The electrical harness 16.2 includes a first end and a second end. The first end is electrically connected to the negative terminal of the DC / DC converter 15, and the second end is electrically connected to a connection end 17 disposed on the longitudinal member 11 to form a grounding terminal for the vehicle. Advantageously, the connection end 17 is positioned on the side of the battery tray 10 where the computer support 12 is located, such as... Figure 2 and Figure 3 It is clearly visible above.

[0040] To ensure cooling of the DC / DC converter, the DC / DC converter 15 may include an input terminal 18 and an output terminal 19 of an internal cooling circuit (especially a water-based cooling circuit).

[0041] Electrical wiring harness 16.2 is arranged inside guide channel 22. Guide channel 22 is bounded on one side by a portion 23 of computer support 12 and on the other side by a portion 24 of battery tray 10.

[0042] A portion 23 of the support member 12 is located at the end (in this case, the lower end) of the support member. The portion 23 of the support member 12 may include a wall having a curved form (in particular, an arc form or in particular an L form with rounded corners).

[0043] Part 24 of the battery tray 10 may include a wall having a curved form (especially an arc or an L-shape with rounded corners). Parts 23 and 24 of the computer support 12 and the battery tray 10 have complementary forms to define the inner surface of the guide channel 22.

[0044] The guide channel 22 may have a cross-section, which may be rectangular, square, circular, elliptical, or any other form suitable for the application (with rounded corners if necessary).

[0045] like Figure 3 As can be seen above, in order to ensure the mechanical performance of the guide channel 22, the locking device 26 is located in the extension of the portion 23 of the computer support 12 and the portion 24 of the battery tray 10, the extension defining the guide channel 22.

[0046] The locking device 26 includes a connector 27 from the battery tray 10, which engages with a receiving portion 28 disposed in the support member 12. Of course, the configuration can be reversed; that is, the connector 27 can be from the support member 12 while the receiving portion 28 can be disposed in the battery tray 10.

[0047] like Figure 2 As can be seen above, a guide slot 20 may also be designed, into which the electrical wiring harness 16.1 is inserted. The guide slot 20, having an elongated shape, may include a U-shaped cross-section. The guide slot 20 is arranged below the DC / DC converter 15.

[0048] During assembly of the components, firstly, the battery tray 10 is mounted on the thermal engine pad. Next, the DC / DC converter 15 is secured to the side wall of the battery tray 10. Then, the engine computer support 12 is fixed to the side wall of the battery tray 10, adjacent to the side wall on which the converter 15 is mounted. During the placement of the support 21, the electrical wiring harness 16.2 is arranged within the guide channel 22 formed by portions 23 and 24. Maintenance of the guide channel 22 is ensured by locking the support 12 to the battery tray 10 via the locking device 26.

[0049] The present invention also aims to provide a motor vehicle comprising the components as defined above.

[0050] In a variant, support 12 may support a computer in the vehicle that is different from the engine computer.

[0051] In a variant, the battery tray 10 can accommodate lithium-ion (or Li-lon) type, nickel metal hydride (or Ni-Mh) type, nickel cadmium (Ni-Cd) type, or lead-based power elements.

Claims

1. A component for a motor vehicle, the component comprising: - Battery tray (10). - A computer support (12) mounted on the battery tray (10), and - At least one electrical wiring harness (16.1, 16.2). The component is characterized in that it includes a guide channel (22), the electrical wiring harness (16.2) is arranged inside the guide channel, the guide channel (22) being bounded on one side by a portion (23) of the computer support (12) and on the other side by a portion (24) of the battery tray (10). The locking device (26) is located in the extension of the portion (23) of the computer support (12) and the portion (24) of the battery tray (10), the extension defining the guide channel (22).

2. The component according to claim 1, characterized in that, The component also includes a DC / DC converter (15) mounted on the battery tray (10).

3. The component according to claim 2, characterized in that, The electrical harness (16.2) includes a first end and a second end, the first end being electrically connected to the DC / DC converter (15), and the second end being connected to a connection end (17) arranged on the longitudinal member (11) of the motor vehicle.

4. The component according to claim 3, characterized in that, The connecting end (17) is positioned on the side of the battery tray (10) where the wall supporting the computer support (12) is located.

5. The component according to claim 1, characterized in that, The locking device (26) includes a connector (27) which is derived from one of the elements in the computer support (12) and the battery tray (10) and is used to mate with a receiving portion (28) in the other of the elements in the computer support (12) and the battery tray (10).

6. The component according to claim 2, characterized in that, The component also includes a guide slot (20) into which a second electrical harness (16.1) is inserted.

7. The component according to claim 6, characterized in that, The guide slot (20) is arranged below the DC / DC converter (15).

8. The component according to claim 1, characterized in that, The computer support component is the engine computer support component.

9. A motor vehicle comprising the components defined in any one of the preceding claims.

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