Method for installing a water pump on a motor vehicle and / or powertrain

Abstract

A method for mounting a motor vehicle equipment item, in particular an electric water pump (7), on a motor vehicle (1) and / or on a power system (2) is disclosed, characterised in that the method comprises: a first step (E1) of providing a bracket (20), the bracket (20) comprising a collar (21) and a clamping screw (23) of the collar (21), the collar (21) comprising a first opening (30, 34) through which the clamping screw (23) engages; a second step (E2) of fastening the bracket (20) to a frame (3, 11) of the motor vehicle (1) and / or the power system (2); a third step (E3) of inserting the motor vehicle equipment item into the interior of the collar; and a fourth step (E4) of tightening the clamping screw (23) to secure the motor vehicle equipment item in place.

Description

Technical Field

[0001] The invention relates to a method for mounting a water pump on a motor vehicle and / or a power system by means of a bracket. The invention also relates to a bracket intended for fixing a water pump to a motor vehicle and / or a power system. The invention further relates to a motor vehicle and a power system comprising such a bracket or mounted using such a mounting method. Background Art

[0002] Motor vehicles generally include a cooling system comprising a water or heat transfer liquid circuit and a pump suitable for circulating the water or heat transfer liquid in the circuit. Such a pump is generally referred to as a water pump, even though the heat transfer liquid is not strictly speaking water. In operation, it is generally driven by a distributor belt.

[0003] Motor vehicles increasingly include items of equipment or peripheral equipment that require cooling. As a result, cooling circuits are becoming longer and more complex. In order to circulate water or a heat transfer liquid efficiently through such a circuit, it is known to use a second or auxiliary water pump that supplements the main water pump. Auxiliary water pumps are a standard equipment item in mass production today.

[0004] To secure the auxiliary water pump, the water pump manufacturer usually ships a bracket that is secured to the water pump. The water pump and its bracket are then secured against the frame of the vehicle, such as the engine block or a body element. The bracket is specifically designed for the vehicle and / or powertrain to which it is intended to be secured. It therefore has a geometry that is specific to a given powertrain or vehicle. The diversity of existing vehicles and powertrains creates an equal diversity of water pumps equipped with their brackets. Assembly shops are therefore faced with a complex management of the inventory of water pumps equipped with water pump brackets.

[0005] In order to simplify the management of stocks and the organization of assembly workshops, there are known methods for mounting water pumps, in which the manufacturer of a vehicle or powertrain orders, on the one hand, a bare water pump, i.e. a water pump without a bracket, and, on the other hand, a bracket suitable for the vehicle or powertrain to be assembled. The bracket is then mounted on the water pump on a special mounting table, and the assembly is then fixed to the vehicle or powertrain. The management of the water pump stock is thus facilitated, but on the other hand, the mounting tables used are bulky and complex to manufacture. Summary of the invention

[0006] The object of the present invention is to provide a method for mounting a water pump and a bracket for carrying out the mounting method, which remedy the above-mentioned disadvantages and improve the known prior art mounting methods.

[0007] More precisely, a first object of the invention is a method for installing water pumps that is easy to carry out in an assembly workshop, in particular a method for installing water pumps that enables simple management of the stock of water pumps and does not require the use of a specific assembly table.

[0008] A second object of the invention is a method for installing a water pump that reduces or even eliminates the risk of incorrect installation of the water pump.

[0009] The present invention relates to a method for installing an item of motor vehicle equipment, in particular an electric water pump, on a motor vehicle and / or a powertrain, the installation method comprising:

[0010] - a first step of providing a support, the support comprising a collar and a clamping screw of the collar, the collar comprising a first opening through which the clamping screw engages;

[0011] - a second step of fixing the bracket to the frame of the motor vehicle and / or the power system;

[0012] - a third step of inserting the item of motor vehicle equipment into the collar;

[0013] - A fourth step of tightening the clamping screw to secure the motor vehicle equipment item in place.

[0014] The collar may comprise two half-shells.

[0015] The collar may comprise a rotational hinge between the two half-shells, and a single clamping screw of the collar.

[0016] During the first step, the second step and the third step, the first half shell and the second half shell may be in an extended position.

[0017] In the extended position of the first half-shell and the second half-shell, the second half-shell can define an opening angle of between 10° and 15°, inclusive, in particular approximately equal to 12°.

[0018] The first housing half may include the first opening and the second housing half may include a second opening, the clamping screw passing through the first opening and engaging through the second opening.

[0019] The bracket can comprise a fixing flange, by means of which the bracket is fixed, in particular screwed, to the frame of the motor vehicle and / or the drive system during this step.

[0020] The bracket may include a poka-yoke to prevent an operator from installing the motor vehicle equipment item in an incorrect manner.

[0021] The item of motor vehicle equipment may include an electrical connector and the collar may include a boss covering the electrical connector at the conclusion of the fourth step.

[0022] The invention also relates to a bracket intended to fix a motor vehicle equipment item, in particular an electric water pump, to a motor vehicle and / or a power system, the bracket comprising a fixing clamp intended to be fixed to the motor vehicle and / or the power system, a shaft collar and a clamping screw of the shaft collar, the shaft collar comprising two half-shells and a rotating hinge between the two half-shells, the shaft collar comprising a free central opening intended to receive the motor vehicle equipment item, the first half-shell comprising a first opening, the second half-shell comprising a second opening, the clamping screw being engaged in the first opening and the second opening, the first half-shell and the second half-shell forming an opening angle strictly greater than zero, in particular an opening angle between 10° and 15°, both inclusive.

[0023] The collar may include a boss intended to cover an electrical connector of an item of motor vehicle equipment, in particular a water pump.

[0024] The invention also relates to an assembly comprising a frame of a motor vehicle and / or of a powertrain, and a support as defined above, which is fastened to the frame.

[0025] The invention also relates to a motor vehicle and / or a powertrain comprising at least one motor vehicle equipment item, in particular an electric water pump or a mechanical water pump and an electric water pump, which motor vehicle equipment item is mounted thanks to the mounting method as defined above. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] These objects, features and advantages of the present invention will be described in detail in the following description of a particular embodiment given by way of non-limiting example with reference to the accompanying drawings, in which:

[0027] - Figure 1 is a schematic diagram of a motor vehicle according to one embodiment of the present invention;

[0028] - Figure 2 is an isometric view of a water pump mounted on a bracket according to one embodiment of the present invention;

[0029] - Figure 3 is an isometric view of the stand without the water pump;

[0030] - Figure 4 is a schematic diagram showing a second step of a method for installing a water pump according to an embodiment of the present invention;

[0031] - Figure 5 is a schematic diagram showing the third step of the installation method;

[0032] - Fig. 6A is a first schematic diagram showing a fourth step of the installation method;

[0033] - Figure 6Bis a second schematic diagram showing a fourth step of the installation method;

[0034] - Fig. 7A is a first schematic diagram showing the water pump mounted on the bracket at the end of the installation method;

[0035] - Figure 7B is a second schematic diagram showing the water pump mounted on the bracket at the end of the installation method. DETAILED DESCRIPTION

[0036] Figure 1 A motor vehicle 1 equipped with a power system 2 according to an embodiment of the present invention is schematically shown. The vehicle 1 can be of any kind. Specifically, it can be, for example, a private car, a multi-purpose vehicle, a truck or a bus. The power system 2 includes an engine, in particular an internal combustion engine having an engine crankcase or an engine block 3. The power system 2 also includes a cooling system 4. The cooling system 4 includes a water or heat transfer liquid circuit 5, a first water pump 6 or a main water pump, and a second water pump 7 or an auxiliary water pump. Alternatively, the cooling system can include a single water pump or three or more water pumps. The cooling system can also advantageously include a heat exchanger capable of cooling the water or heat transfer fluid contained in the circuit 5.

[0037] The circuit 5 is a closed network of channels that pass through the various components of the power system that need to be cooled. In particular, the circuit 5 may include channels formed in the engine block 3. The water pump 6, 7 is an equipment item of the power system, which is able to circulate water or a heat transfer fluid in the cooling circuit 5. Such a pump may also be called a cooling pump. In order to circulate the water or the heat transfer fluid, the water pump 6, 7 may in particular include rotating blades suitable for driving the water or the heat transfer fluid to circulate in the circuit 5. Such blades may have an integral cylindrical housing.

[0038] The water pump may be a so-called mechanical water pump, i.e. a water pump in which the blades are rotated via a mechanical drive. The mechanical water pump may in particular comprise a pulley mounted on a bearing, which pulley is driven in rotation from the engine via a belt. The water pump may likewise be a so-called electric water pump, i.e. a water pump in which the blades are rotated by an electric motor integrated into the water pump. Whether the water pump is mechanical or electric, it may have an overall cylindrical housing. In fact, the pulley or the electric motor may have an overall shape whose axis of rotation coincides with the axis of rotation of the blades. The axis of rotation corresponds to the axis of rotation of the blades.

[0039] According to the embodiment shown, the first water pump 6 is a mechanical water pump and the second water pump 7 is an electric water pump. Alternatively, the first water pump 6 may be an electric water pump and the second water pump may be a mechanical water pump. Likewise, both water pumps may be electric water pumps.

[0040] The present invention can be advantageously used to install an electric water pump, since such a pump is a standard component and requires little or no adaptation to be integrated into the cooling system. Figure 2 As shown. Therefore, it comprises an electric motor 8, an electrical connector 9 connected to the electric motor 8, a hydraulic inlet 12 and a hydraulic outlet 13. The hydraulic inlet 12 and the hydraulic outlet 13 are each composed of a hydraulic connector suitable for connecting the water pump 8 to the circuit 5 on the upstream side and the downstream side. The hydraulic connector of the hydraulic inlet 12 can extend along an axis substantially aligned with the axis of rotation of the blades or the electric motor. The hydraulic connector of the hydraulic outlet 13 can extend along an axis substantially perpendicular to the axis of rotation of the blades or the electric motor. That is, the hydraulic connector of the hydraulic outlet 13 extends radially relative to the blades. Therefore, the construction of the water pump 7 is compatible with centrifugal pumping of water or a heat transfer fluid through the blades.

[0041] The first water pump 6 and the second water pump 7 are fixed to the engine block 3 and the body element 11 of the vehicle, respectively. In general, the water pumps are fixed to the frame or fixed structure of the vehicle. Alternatively, the two water pumps 6, 7 can be fixed interchangeably to the engine block or the body element or to two separate body elements. In the rest of the document, the term frame will be used to indicate the element or structure to which the water pump 7 is fixed. The second water pump 7 is fixed to the frame by means of a dedicated bracket 20. The first water pump 6 can also be fixed to the frame by means of a bracket 20'. The bracket 20' can be a bracket according to the present invention, and even a bracket equivalent to the bracket 20, or it can be any bracket. The function of the bracket 20 is to maintain the water pump in a specific position throughout the life of the vehicle.

[0042] Now refer to Figure 2 and Figure 3 The bracket 20 capable of fixing the second water pump 7 is described. In the rest of the description, the second water pump will be more simply referred to as "water pump". Figure 2 and Figure 3In the figure, the bracket 20 is shown in a state before the water pump is fixed. The bracket is shown in a state such as shipped by the bracket manufacturer. The bracket 20 includes a collar 21, a fixing flange 22 and a single clamping screw 23 of the collar 21. The collar 21 is a device for fixing the water pump to the bracket 20. The fixing flange 22 or the fixing lug is a device for fixing the bracket 20 to the frame. The bracket is advantageously made of metal. Specifically, the bracket can be pressed from a metal sheet. The bracket 20 has sufficient rigidity to support the weight of the water pump under the conditions of vehicle operation. Specifically, if the bracket is used to fix the water pump to the engine block 3, it will be advantageously designed to withstand vibrations of the order of 160 Hz at a minimum. If the bracket is used to fix the water pump to the body element 11, it will be advantageously designed to withstand vibrations of the order of 30 Hz at a minimum. The thickness of the metal sheet used to make the bracket can be selected to achieve appropriate rigidity.

[0043] The fixing flange 22 has a geometry that matches the configuration of the vehicle on which the water pump is mounted. It can include different, more or less inclined planar portions relative to one another. The fixing flange also includes two fixing holes 38, 39, one of which is rectangular. These two holes 39, 39 enable the bracket to be fixed to the frame. These holes 38, 39 are intended to be engaged with fixing screws 40 (in Figure 4 There may be any number of holes to enable the bracket 20 to be fixed. Alternatively, the bracket 20 may be fixed to the frame by other fixing techniques such as riveting, crimping or welding.

[0044] The collar 21 comprises a central opening of an overall circular shape. It is formed by two half shells 24, 25 and a rotating hinge 26 between the two half shells 24, 25. Therefore, the two half shells 24, 25 are two elements separated from each other. The first half shell 24 forms an integral component with the fixing flange 22, i.e., an integral component. Broadly speaking, the two half shells 24, 25 take the form of a strip of substantially constant width extending along a semicircle. The two half shells can have substantially the same shape. The shape of the half shells 24, 25 is defined as the shape of a part of the support water pump. Specifically, the second half shell 25 comprises a U-shaped boss 37. When the water pump is placed in the bracket 20, the boss 37 covers the electrical connector 9 of the water pump. The boss 37 makes it possible to bypass the electrical connector 9. The boss 37 realizes the indexing of the pump on the collar 21, especially the rotation indexing, so that the pump can be easily installed, especially blindly installed. In addition, once the pump has been installed on the collar, the boss protects the electrical connector 9 from impact, especially the impact of objects thrown by the movement of the vehicle. Alternatively, the two half-shells may be of any other shape.

[0045] The first half shell 24 has two ends 27, 28. The first end 27 includes a hook 29 and the second end 28 includes a first opening 30 through which the clamping screw 23 passes. Similarly, the second half shell 25 has two ends 31, 32. The first end 31 includes a hole 33 and the second end 32 includes a second opening 34 through which the clamping screw 23 passes.

[0046] The swivel joint 26 is obtained by the cooperation of the hook 29 with the hole 33. Thus, the second half shell can be pivoted relative to the first half shell about an axis passing through the first end 27 of the first half shell and coinciding with the first end 31 of the second half shell. This axis is generally oriented perpendicular to the surface formed by the central opening of the collar 21. Thus, the two first openings 27, 31 are always in contact with each other and the two second ends can be moved away from each other thanks to the swivel joint 26. It should be noted that the positions of the hook and the hole can be interchanged, i.e. the hook can be on the second half shell and the hole can be on the first half shell. In particular, the opening angle A1 can be defined as the angle formed between a first straight line segment passing through the two ends 27, 28 and a second straight line segment passing through the two ends 31, 32.

[0047] When passing through the openings 30 and 34 , the clamping screw 23 fixes the rotary joint 26 so that the two half-shells 24 , 25 form a fixed opening angle A1 . Figures 2 to 5 In the configuration represented in , the angle A1 can be between 10° and 15°, inclusive, and in particular it can be about 12°. Thus, the two ends 28 and 32 of the first half-shell 24 and the second half-shell 25, respectively, do not contact each other. These two ends are intended to contact each other when the clamping screw 23 is subsequently tightened. The opening angle A1 can be maintained at a specific value in various ways.

[0048] According to the embodiment shown, the movement of the two ends 28 and 32 towards each other can be limited, thanks to the specific configuration of the hook 29 and the hole 33, which tends to move the two ends 28 and 32 away from each other. In other words, the hook 29 and the hole 33 can be designed to generate a restoring force tending to open the angle A1. This force can be easily overcome when the clamping screw 23 is subsequently tightened. According to a variant embodiment, the device for generating the effect of moving the two ends 28 and 32 away from each other can be a compression spring (not shown), which is arranged around the clamping screw and inserted between the two ends 28 and 32 of the half shells. Because the spring rests against each wall of the two ends 28 and 32, respectively, a force is applied that moves the two half shells away from each other to counteract the movement of the two half shells 24, 25 towards each other. In addition, the clamping screw 23 includes, on the one hand, a screw head 35 supported on the end 32, and on the other hand, a thread that cooperates with a nut or a threaded opening formed at the level of the end 28. As Figure 3As is evident from the foregoing, the end 28 may in particular comprise a nut 36 welded to the end 28. The axis along which the clamping screw 23 extends is therefore defined by the orientation of the threads of the nut 36. The opening 34 advantageously has a rectangular shape so as to enable the second half-shell to pivot relative to the first half-shell without the body of the screw interfering with the opening 34. Thus, in the absence of any external load, the two half-shells move away from each other under the effect of the restoring force until the screw head 35 abuts the end 32. It should be noted that the positions of the two holes 30, 34 and the screws may be interchanged. The screw head may be supported on the end 28 and the nut 36 may be fixed to the end 32. The orientation of the clamping screw may be selected so as to facilitate access to the screw head for tightening the screw.

[0049] Alternatively, the opening angle A1 can be maintained at a certain value by providing a thread in each of the openings 30 and 34. The threads of both openings 30 and 34 will then engage with the clamping screw. When tightening the clamping screw, the pivoting of the second half shell relative to the first half shell will cause a slight deformation of the half shells.

[0050] According to another variant embodiment, the restoring force tending to open the opening angle A1 can be obtained in any other way. Specifically, it can be obtained only by the effect of gravity exerted on the second half shell 25.

[0051] According to another variant, the collar can consist of a single C-shaped element without articulated kinematics. The two ends of the C will then have a design close to or identical to the two end portions 28, 32 described above. The opening angle A1 will be maintained at a predetermined value by the inherent shape of the collar. When the collar is subsequently clamped, its two ends can be brought together thanks to the overall deformation of the collar.

[0052] In a complementary manner, the bracket 20 may include a poka-yoke to prevent an operator from mounting the water pump in a wrong manner. The poka-yoke may be obtained, for example, by a portion of the collar adjacent to one of the hydraulic connectors forming the hydraulic inlet 12 or the hydraulic outlet 13 of the water pump.

[0053] According to the present invention, the water pump is installed by a mounting method which will now be described.

[0054] In a first step E1, a support 20 as described above is provided. Specifically, the clamping screw 23 engages in the nut 36 so that the opening angle A1 is fixed at a value between 10° and 15°, inclusive, in particular so that the opening angle A1 is approximately equal to 12°. The support is loose, that is to say not pre-mounted on the water pump. Therefore, the central opening of the collar 21 is free, in other words unobstructed.

[0055] exist Figure 4In the second step E2 shown, the bracket 20 is fixed to the frame (not shown) of the vehicle and / or powertrain. To this end, the fixing screws 40 are screwed into the frame through the two fixing holes 39, 39 of the fixing flange 22. It is easier to mount the bracket 20 separately than to mount it in advance on the water pump, because it is lighter to handle and the screws for fixing it to the frame are more accessible and / or easier to see. During this step, the clamping screws 23 are not manipulated and the opening angle A1 of the collar remains at the same value as during the first step E1. After the second step E2, a frame is thus obtained to which the bracket is fixed. The collar of the bracket comprises a central opening which is unobstructed and ready to receive the water pump.

[0056] exist Figure 5 In the third step E3 shown, the water pump is provided and inserted or in other words enters the central opening of the collar 21. An opening angle A1 between 10° and 15° (including the end values) (preferably 12°) enables a sufficiently large central opening to be obtained to easily insert the water pump into the collar. The error-proofing device advantageously prevents the water pump from being inserted in an incorrect orientation. The boss 37 advantageously provides a visual mark that enables the water pump to be correctly oriented. The operator responsible for carrying out the installation process can easily identify the electrical connector 9 on the water pump and pivot it so that its position coincides with the position of the boss 37. Once in place, the electrical connector 9 is protected from impacts by the boss 37 covering it. The boss 37 also makes it possible to visually check or mechanically check whether the water pump is inserted to the correct depth in the collar 21.

[0057] exist Fig. 6A and Figure 6B In the fourth step E4 shown, the clamping screw 23 is tightened to fix the water pump in place. The clamping screw 23 is screwed into the nut 36. The movement of the screw head 35 supported on the end 32 of the second half shell 25 causes the second half shell 25 to pivot around the rotating hinge 26. The end 32 of the second half shell 25 moves toward the end 28 of the first half shell 24 until the two half shells effectively clamp the body of the water pump. It should be noted that it can be seen that it is not necessary to provide the clamping screw 23 in a specific step because the water pump is attached to the two half shells. When the clamping screw 23 is engaged in the nut 36, it will not move and the operator can easily position the screw head 35 so as to screw it in. In addition, the opening angle A1 (preferably 12°) between 10° and 15° (including the end value) can make the clamping stroke of the collar relatively short, and therefore the collar can be clamped quickly. Therefore, this opening angle A1 is the best compromise between easily inserting the water pump into the central opening and quickly clamping the collar.

[0058] After the fourth step E4, the water pump is thus fixed to the frame by means of the bracket 20. It can be seen that the ends 28 and 32 of the two half-shells are in contact one against the other. This therefore avoids the two half-shells clamping the water pump too strongly. The clamping torque of the clamping screw 23 can thus be high enough to prevent all risks of it coming loose during use of the vehicle, but without the risk of damaging the water pump by over-clamping. Finally, the water pump can be connected to the circuit 5 via its hydraulic inlet 12 and its hydraulic outlet 13. The water pump can also be electrically connected to the electronic control unit via the electrical connector 9.

[0059] Thanks to the mounting method, the water pump is easily mounted on the frame of the vehicle. The water pump does not need to be pre-mounted on the bracket, which simplifies the management of the stock of water pumps that can be common to different vehicles. The mounting method also does not require a mounting table on which the water pump is pre-mounted on the bracket. The water pump mounting station is very simple, since it only requires a stock of water pumps on the one hand and a stock of brackets according to the invention on the other hand.

Claims

1. A method for installing a motor vehicle equipment item on a motor vehicle (1) and / or a power system (2), characterized in that The method includes: - a first step (E1) of providing a support (20) comprising a collar (21) and a clamping screw (23) of the collar (21), the collar (21) comprising a first opening (30, 34) through which the clamping screw (23) engages; - a second step (E2) of fixing the support (20) to the frame (3, 11) of the motor vehicle (1) and / or the power system (2); - a third step (E3) of inserting the item of motor vehicle equipment into the collar; - a fourth step (E4) of tightening the clamping screw (23) in order to secure the motor vehicle equipment item in place; The collar (21) comprises two half-shells (24, 25), a rotating hinge (26) between the two half-shells (24, 25), and a single clamping screw (23) of the collar (21); the rotating hinge (26) is obtained by the cooperation of a hook (29) and a hole (33), the hook (29) being on one of the two half-shells (24, 25) and the hole (33) being on the other; the ends of the hook (29) and the ends of the other of the two half-shells (24, 25) are bent toward each other and abut against each other, so that the other two ends of the two half-shells (24, 25) move away from each other to limit the movement of the other two ends toward each other.

2. The installation method according to claim 1, characterized in that: The two half shells (24, 25) are a first half shell (24) and a second half shell (25), and during the first step (E1), the second step (E2) and the third step (E3), the first half shell (24) and the second half shell (25) are in an extended position.

3. The installation method according to claim 2, characterized in that: In the extended position of the first half-shell (24) and the second half-shell (25), the second half-shell defines an opening angle (A1) between 10° and 15°, inclusive.

4. The installation method according to any one of claims 2 to 3, characterized in that: The first half-shell (24) comprises the first opening (30), and the second half-shell (25) comprises a second opening (34), the clamping screw (23) being engaged through the first opening (30) and through the second opening (34).

5. The installation method according to any one of claims 1 to 3, characterized in that: The support (20) comprises a fixing flange (22), by means of which the support (20) is fixed to the frame (3, 11) of the motor vehicle (1) and / or the powertrain (2) during the second step (E2).

6. The installation method according to any one of claims 1 to 3, characterized in that: The bracket (20) includes a poka-yoke to prevent an operator from installing the motor vehicle equipment item in an incorrect manner.

7. The installation method according to any one of claims 1 to 3, characterized in that: The item of motor vehicle equipment comprises an electrical connector (9), and in that the collar may comprise a boss (37) covering the electrical connector (9) at the end of the fourth step (E4).

8. The installation method according to any one of claims 1 to 3, characterized in that: The item of motor vehicle equipment is an electric water pump (7).

9. The installation method according to claim 3, characterized in that: The opening angle is approximately equal to 12°.

10. The installation method according to claim 5, characterized in that: The bracket (20) is screwed to the frame (3, 11) of the motor vehicle (1) and / or the powertrain (2) by means of the fixing flange (22) during the second step (E2).

11. A bracket (20) intended to secure an item of motor vehicle equipment to a motor vehicle (1) and / or a powertrain (2), characterized in that The bracket comprises a fixing flange (22) intended to be fixed to a motor vehicle (1) and / or a powertrain (2), a collar (21) and a clamping screw (23) of the collar (21), the collar (21) comprising a first half-shell (24), a second half-shell (25) and a swivel joint (26) between the two half-shells (24, 25), the collar (21) comprising a free central opening intended to receive the motor vehicle equipment item, the first half-shell (24) comprising a first opening (30), the second half-shell (25) comprising a second opening (34), the clamping screw (23) being engaged in the first opening (30) and in the second opening (34), ...), the second half-shell (25) comprising a second opening (34), the clamping screw (23) being engaged in the first opening The shell (24) and the second half shell (25) form an opening angle (A1) that is strictly greater than zero, including the end value, wherein the rotating hinge (26) is obtained by the cooperation of a hook (29) and a hole (33), wherein the hook (29) is on one of the first half shell (24) and the second half shell (25) and the hole (33) is on the other of the first half shell (24) and the second half shell (25); the end of the hook (29) is bent toward and abutted against the end of the other of the two half shells (24, 25), so that the other two ends of the two half shells (24, 25) move away from each other to limit the movement of the other two ends toward each other.

12. The support (20) according to claim 11, characterized in that: The collar (21) comprises a boss (37) intended to cover an electrical connector (9) of an item of motor vehicle equipment.

13. The support (20) according to claim 11 or 12, characterized in that: The opening angle (A1) is between 10° and 15°.

14. The support (20) according to claim 11 or 12, characterized in that: The motor vehicle equipment item is an electric water pump (7).

15. An assembly comprising a frame (3, 11) of a motor vehicle (1) and / or a powertrain (2) and a bracket (20) as claimed in any one of claims 11 to 14, the bracket (20) being fixed to the frame (3, 11).

16. A motor vehicle (1), characterized in that The motor vehicle comprises at least one motor vehicle equipment item and is provided in such a way that the motor vehicle equipment item is mounted thanks to a mounting method as claimed in any one of claims 1 to 10 .

17. The motor vehicle (1) according to claim 16, characterized in that The at least one motor vehicle equipment item is an electric water pump (7), or a mechanical water pump (6) and an electric water pump (7).

18. A power system (2), characterized in that: The powertrain comprises at least one item of motor vehicle equipment and consists in mounting the item of motor vehicle equipment thanks to a mounting method as claimed in any one of claims 1 to 10 .

19. The power system (2) according to claim 18, characterized in that: The at least one motor vehicle equipment item is an electric water pump (7), or a mechanical water pump (6) and an electric water pump (7).

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