SYSTEM FOR MOUNTING A MULTI-PURPOSE MOTOR COMPUTER AND A BATTERY TERMINAL OF AN ELECTRIC VEHICLE

Description

[0001] The invention relates to the field of front-end assemblies for electric traction battery-powered motor vehicles, specifically in the area where the traction battery is mounted. More precisely, the invention concerns the design of a mounting bracket system for a CMM (Computer Multifunction Engine Control) and a battery connection terminal, particularly of the BFT (Battery Fuse Terminal) type, in a complex environment.

[0002] In this area, there is a growing need to fix the engine multifunction control unit (CMM) in a lateral area of ​​the front block of the vehicle, in front of a 12V ALD battery (atomic thin film deposition or " atomic layer deposition (in English).

[0003] This type of configuration involves a specific architecture allowing the battery connection terminal (BFT terminal) to be fixed in the front block.

[0004] In reference to standard assembly techniques, there is also a need to mount the CMM computer on a computer support in preparation to facilitate assembly without having to remove the computer support from a terminal support.

[0005] The invention aims to propose a new CMM calculator and BFT terminal mounting configuration with specific mounting brackets.

[0006] Furthermore, the state of the art is known from document CN206719136U.

[0007] To achieve this objective, the invention proposes an assembly for a motor vehicle comprising an engine control unit, a battery connection terminal, and a mounting system for the engine control unit and the battery connection terminal, this mounting system comprising an ECU bracket configured to be fixed to a motor vehicle support block, and to receive the engine ECU so as to fix the engine ECU to the ECU bracket; and a terminal bracket configured to be fixed to the ECU bracket by holding the engine ECU between the ECU bracket and the terminal bracket, the terminal bracket being further configured to receive the battery connection terminal so as to fix the battery connection terminal to the terminal bracket.

[0008] Advantageously, a CMM and BFT terminal support system, particularly one made of plastic, allows the CMM to be secured during preparation while ensuring that the CMM remains intact during assembly on the production line. The support allows the CMM and terminal to be sandwiched onto a battery holder using a single fastener. In a variant, it also provides guidance for securing the terminal holder while ensuring vibration resistance. Furthermore, the support accommodates installation constraints.

[0009] In one variant, the support block includes a cooperation hole configured to engage with a protrusion on the ECU bracket, thus wedging the ECU bracket onto the support block. This facilitates assembly by aligning these two support structures with each other.

[0010] In one variant, the protrusion of the computer support includes a water drainage hole. This helps protect the assembly from water damage.

[0011] In one variant, the ECU bracket includes a guide relief, and the terminal bracket includes a guide hole configured to cooperate with the guide relief to guide the mounting of the terminal bracket onto the ECU bracket. This facilitates assembly by guiding the connection of the support structures.

[0012] In one variant, the computer support includes a snap-on blade, and the terminal support includes a first snap-on hole configured to cooperate with the snap-on blade to snap the terminal support to the computer support. This improves the cohesion of the support structures with each other.

[0013] By " encliquetage ou clippage » understood to be a fixing mechanism involving elastic deformation of at least one sliding structure, and the locking of two cooperating structures.

[0014] In one variant, the terminal bracket includes a snap-on tab, and the computer bracket includes a second snap-on hole configured to cooperate with the snap-on tab to snap the terminal bracket to the computer bracket. This further improves the cohesion of the support structures with each other.

[0015] In one variant, the terminal bracket includes a mounting hole, and the ECU bracket includes a mounting notch to be positioned opposite the mounting hole. The hole and notch are configured to allow passage through a mounting structure to secure the ECU bracket and terminal bracket to the support block. This allows the support structures to be securely fastened together.

[0016] In one variant, the fastening system includes at least one clip protection structure for the snap-on tab. This protects the male snap-on structures during transport of the corresponding parts.

[0017] In one variant, the fastening system includes at least one reinforcing wall around a fastening structure. This protects the corresponding fastening structure to prevent the installation of a crocodile clip.

[0018] The invention also relates to a motor vehicle comprising a fastening system according to the invention.

[0019] Another object of the invention relates to a method for mounting an engine control unit and a battery connection terminal in a motor vehicle, comprising the following steps fix the engine control unit onto a control unit bracket and a terminal bracket onto the control unit bracket, holding the engine control unit between the control unit bracket and the terminal bracket; fix the assembly onto a motor vehicle support block; then fix the battery connection terminal onto the terminal bracket.

[0020] The invention will be further detailed by describing non-limiting embodiments, and based on the accompanying figures illustrating variants of the invention, in which: - - [ Fig.1 ] schematically illustrates a spatial view of an engine control unit support of a mounting system according to a preferred embodiment; [ Fig.2 ] schematically illustrates a three-dimensional view of a terminal support for the mounting system according to the preferred embodiment; [ Fig.3 ] schematically illustrates a view in space of the supports of the figures 1 And 2 assembled with an engine control unit; [ Fig.4 ] schematically illustrates a spatial view of a mounting of the supports and calculator of the figure 3 on a motor vehicle mounting block, as well as mounting a battery connection terminal on the computer; [ Fig.5 ] schematically illustrates a spatial view of an assembly of a computer support protrusion on a support block cooperation hole; [ Fig.6 ] schematically illustrates a three-dimensional view of the underside of the terminal block assembly on the computer bracket; [ Fig.7 ] schematically illustrates a spatial view of the snap-on and guide means for mounting the terminal bracket onto the computer bracket; and [ Fig.8 ] schematically illustrates a view in space of protective structures of male snap-fit ​​means of the terminal support.

[0021] The invention relates to a system for fixing a CMM engine control unit and a BFT battery connection terminal in a motor vehicle.

[0022] The mounting system includes an SC ECU bracket for the CMM engine ECU, and an ST terminal bracket for the BFT battery connection terminal.

[0023] The SC ECU bracket is configured to be attached to a BS mounting block on the vehicle, and to receive the CMM engine control unit, thus securing the CMM to the SC ECU bracket. The BS mounting block can be an ALD battery holder in the front of the vehicle.

[0024] In particular, the SC control unit bracket has a Z-shaped support blade comprising a substantially horizontal upper mounting arm C1 oriented towards the BS support block, a substantially vertical intermediate blade C2, and a substantially horizontal lower arm C3 oriented oppositely to the upper arm. The CMM engine control unit is configured to be positioned against the intermediate blade C2 and to rest on the lower arm C3.

[0025] The C1 mounting arm includes a first mounting structure F0 receiving a screw or rivet to fix the SC computer support to the BS support block.

[0026] The SC ECU bracket may include F1-F3 mounting structures such as screws or rivets that engage with corresponding structures on the CMM engine control unit. A molded screw near F1 and centered, combined with a mounting clip, can be provided to further improve the fastening.

[0027] The ST terminal bracket is configured to be attached to the SC ECU bracket, sandwiching the CMM engine control unit between the SC ECU bracket and the ST terminal bracket. The ST terminal bracket is further configured to accept the BFT battery connection terminal, allowing the BFT battery connection terminal to be attached to the ST terminal bracket.

[0028] In particular, the ST terminal bracket also has a Z-shaped support blade comprising a substantially oblique upper mounting arm T1 oriented towards the SC control unit bracket, a substantially vertical intermediate blade T2, and a substantially horizontal lower arm T3 oriented oppositely to the upper arm. The CMM engine control unit is configured to be positioned between the two intermediate blades C2 and T2, and the BFT battery connection terminal is configured to be positioned on the intermediate blade T2 opposite the CMM engine control unit.

[0029] Preferably, the ST terminal support includes a tab L, most preferably in the middle of the intermediate blade T2. The tab L provides anti-noise and anti-creep properties.

[0030] In the mounting of the SC ECU bracket onto the BS support block, the BS support block can be designed to have a cooperation hole TB configured to cooperate with a protrusion PC on the SC ECU bracket, thus securing the SC ECU bracket onto the BS support block. The cooperation hole TB and the protrusion PC are visible in the figure 5 .

[0031] In the illustrated variant, the PC protrusion is located at the junction of the intermediate blade C2 with the lower branch C3. Preferably, the PC protrusion of the SC computer support has a water drainage hole TE, visible at figures 5 et 6 .

[0032] In the preferred variant, the SC ECU bracket includes a guide relief RG, and the ST terminal bracket includes a guide hole TG configured to cooperate with the guide relief RG to guide the mounting of the ST terminal bracket onto the SC ECU bracket. The guide relief RG and the guide hole TG are visible at the figure 7 .

[0033] In the illustrated variant, the guide relief RG is located on the lower branch C3. The guide hole TG is located at the junction of the intermediate blade T2 with the lower branch T3.

[0034] Preferably, the SC control unit bracket includes a snap-in blade E1, and the ST terminal bracket includes a first snap-in hole E2 configured to cooperate with the snap-in blade E1 to snap the ST terminal bracket to the SC control unit bracket. The structure of the blade E1 and the first snap-in hole E2 prevents the ST terminal bracket from being dislodged from the SC control unit bracket. The snap-in blade E1 and the first snap-in hole E2 are visible at the figure 7 .

[0035] In the illustrated variant, the snap-on blade E1 is located at the free edge of the lower arm C3. The first snap-on hole E2 is located on the lower arm T3.

[0036] According to one variant, the ST terminal bracket includes a snap-on tab E3, and the SC ECU bracket includes a second snap-on hole E4 configured to cooperate with the snap-on tab E3 to snap the ST terminal bracket to the SC ECU bracket. The snap-on tab E3 and the second snap-on hole E4 are visible in the figures 5 et 6 .

[0037] In the illustrated variant, the second snap-in hole E4 is located on the protrusion PC and coincides with the water drain hole TE.

[0038] In the preferred variant, the ST terminal bracket includes a mounting hole F5, and the SC ECU bracket includes a mounting notch F4 to be positioned opposite the mounting hole F5. The hole F5 and the notch F4 are configured to allow passage of a fastening element, such as a screw or rivet, to secure the SC ECU bracket and the ST terminal bracket to the BS support block. The mounting hole F5 and the mounting notch F4 are visible at the figure 6 .

[0039] Preferably, the fastening system includes at least one PC clip protection structure for at least one of the male snap-in structures. This is particularly relevant to the E3 snap-in tab of the ST terminal holder. This provides protection for the E3 snap-in tab during transport of the ST terminal holder. PC clip protection structures are visible in the figure 8 .

[0040] In one variant, the mounting system includes at least one reinforcing wall M around a mounting structure. Specifically, this is a protective wall for at least one mounting structure of the SC, ST, and CMM terminal supports, in particular at least the mounting structures F1 (here at the junction between the upper arm C1 and the intermediate blade of the SC terminal support) and F6 (here at the upper arm T1 of the ST terminal support). This prevents the installation of a crocodile clip. The wall M is visible in the figures 2 And 3 .

[0041] The invention further relates to a motor vehicle comprising a fastening system as described above.

[0042] Another object of the invention relates to a method for mounting a CMM engine control unit and a BFT battery connection terminal in a motor vehicle. This specifically involves mounting using SC and ST brackets as described above.

[0043] The process includes a step to fix the CMM engine control unit in preparation onto an SC control unit support and an ST terminal support onto the SC control unit support by sandwiching the CMM engine control unit between the SC control unit support and the ST terminal support.

[0044] The process then includes a step to fix the assembly onto a BS support block of a motor vehicle;

[0045] The process further includes a step to then fix the BFT battery connection terminal onto the ST terminal support.

Claims

1. Set for motor vehicles including an engine calculator (CMM), a battery connection terminal (BFT) and a motor calculator (CMM) and battery connection terminal (BFT) attachment system, including - a computer support (SC) configured to be attached to a support block (BS) of the motor vehicle, and to receive the motor calculator (CMM) so as to secure the engine calculator (SC) CMM) on the computer carrier (SC); and - a terminal support (ST) configured to be attached to the computer support (SC) by maintaining the engine calculator (CMM) between the computer support (SC) and the terminal support (ST), and the terminal support (ST) being configured to receive the battery connection terminal (BFT) so that the battery connection terminal (BFT) is attached to the terminal support (ST).

2. Together according to Claim 1, characterized that the support block (BS) includes a cooperation hole (TB) configured to cooperate with a protuberance (PC) of the computer support (SC) so as to place the computer support (SC) on the support block (BS).

3. Together according to Claim 2, characterized as the protuberance (PC) of the computer carrier (SC) has a water drain (TE) hole.

4. Together according to any of the claims 1 to 3, characterized as the computer support (SC) includes a guidance relief (RG) and the terminal support (ST) includes a guidance hole (TG) configured to cooperate with the guidance relief (RG) to guide the mounting of the terminal support (ST) on the computer support (SC).

5. Together according to any of the claims 1 to 4, characterized that the calculator support (SC) includes a plug blade (E1) and the terminal support (ST) includes a first plug hole (E2) configured to cooperate in form with the plug blade (E1) to insert the terminal support (ST) with the calculator support (SC).

6. Together according to any of the claims 1 to 5, characterized that the terminal bracket (ST) includes a connector tab (E3) and the computer bracket (SC) includes a second connector hole (E4) configured to cooperate with the connector tab (E3) to insert the terminal bracket (ST) with the computer bracket (SC).

7. Together in accordance with Claim 6, characterized by the fact that the fastening system includes at least one clip protection structure (PC) vis-à-vis the insert tab (E3).

8. Together according to any of the claims 1 to 7, characterized as the terminal support (ST) includes a fixing hole (F5), and the computer support (SC) includes a fixing notch (F4) to be placed next to the fixing hole (F5), the hole (F5) and the notch (F4) being configured to be crossed by a fixing structure to secure the fixing bracket (F5) SC) and terminal support (ST) on support block (BS).

9. Motor vehicle comprising a set according to any of the claims 1 to 8.

10. Assembly of an engine calculator (CMM) and battery connection terminal (BFT) in a motor vehicle, including the following steps - attach the engine calculator (CMM) to a computer support (SC) and terminal support (ST) to the computer support (SC) by maintaining the engine calculator (CMM) between the computer support (SC) and the terminal support (ST); - fix the assembly on a support block (BS) of the motor vehicle; - then fix the battery connection terminal (BFT) on the terminal support (ST).