A mounting bracket assembly, a motor assembly cooling system and a vehicle

Abstract

The application provides a mounting bracket assembly, a motor assembly cooling system and an automobile, and relates to the technical field of automobile parts. The mounting bracket assembly comprises a base bracket, a first side bracket and a second side bracket. The base bracket comprises a base bottom plate. A base boss is concavely formed on the middle part of the base bottom plate. Other positions of the base bottom plate are used for being connected with a motor. One end of the first side bracket is connected to the base boss. The second side bracket is used for being connected with the other end of the first side bracket, so as to tightly hold the cooling water pump between the first side bracket and the second side bracket. The mounting bracket assembly with the base bracket has high rigidity, and the mode of the internal cooling water pump is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile parts, in particular to a mounting bracket assembly, a motor assembly cooling system and an automobile. BACKGROUND

[0002] In a new energy automobile, the cooling water pump of the power battery has a very important role, and the cooling water pump can circulate the coolant of the power battery cooling system when working, so as to ensure that the power battery is in a normal temperature range during working. If the cooling water pump cannot work normally, the temperature of the power battery will be greatly affected, and in serious cases, it may even cause the power battery to catch fire and other accidents.

[0003] In some new energy vehicles, the cooling water pump is integrated and installed on the motor through the water pump bracket due to the arrangement of the vehicle structure. Since the motor is mainly connected to the automobile chassis through left, right and rear suspensions, the acceleration of the motor system will often reach five times the gravitational acceleration or even higher when the automobile is rapidly accelerated, braked or passes through a pit or a ridge. The existing water pump bracket often has low rigidity, which can cause the modal of the cooling water pump to be low, easily resonate with the motor, and further cause abnormal noise. In serious cases, it can cause the water pump bracket to break, affecting the cooling circulation of the power battery. SUMMARY

[0004] The present application aims to solve the problem of low rigidity of the existing water pump bracket, which can easily cause resonance between the water pump and the motor.

[0005] To solve the above problems, the present application provides a mounting bracket assembly, which comprises a base bracket, a first side bracket and a second side bracket. The base bracket comprises a base bottom plate, a base boss is concave-formed on the middle part of the base bottom plate, and the other positions of the base bottom plate are used for connecting with the motor. One end of the first side bracket is connected to the base boss, and the other end of the first side bracket is connected with the second side bracket, so as to tightly hold the cooling water pump between the first side bracket and the second side bracket.

[0006] The mounting bracket assembly provided by the present application has the following technical effects, but is not limited to the following technical effects:

[0007] The cooling water pump can be installed on the motor through the mounting bracket assembly. Specifically, in the base bracket, the position of the base bottom plate except the base boss can be fixedly connected with the motor, for example, through bolt connection with the motor through the mounting hole (the mounting hole is arranged at the non-central position of the base bottom plate, such as at the both end positions of the base bottom plate), the central part of the base bottom plate is upwardly recessed to form a base boss, and the normal stiffness of the base bottom plate can be improved through the base boss. Correspondingly, the normal stiffness of the top surface of the base boss is also improved. In this way, after the first side bracket, for example, the bottom end thereof, is fixedly connected with the base boss, the first side bracket also has high stiffness and modal. Then, after the second side bracket is connected with the top end of the first side bracket to tightly hold the cooling water pump, the mounting bracket assembly and the internally tightly held cooling water pump can withstand the impact of acceleration of more than five times the gravity of the motor without breakage and abnormal noise, greatly improving the working reliability of the cooling water pump. At the same time, the cooling water pump tightly held in the mounting bracket assembly will not resonate with the motor due to the high modal.

[0008] Further, the side edge of one end of the base bottom plate is upwardly formed with a first side base flange, the side edge of the other end of the base bottom plate is upwardly formed with a second side base flange, the first side base flange and the second side base flange both extend toward the direction of the base boss and form an integral structure, and the first side base flange and the second side base flange are arranged at an included angle. The base boss, the first side base flange and the second side base flange are respectively connected with the first side bracket.

[0009] Further, the first side bracket includes a first side bracket body, a first lug and a second lug, the first lug and the second lug are respectively arranged at opposite sides of the first side bracket body, and the both ends of the second side bracket are respectively connected with the first lug and the second lug to tightly hold the cooling water pump.

[0010] Further, the first side bracket body includes a first side bottom plate and a first side vertical plate connected with each other, the first side bottom plate is connected with the top surface of the base boss, and the first side vertical plate is connected with the second side base flange or the first side base flange. The first lug and the second lug are respectively arranged at opposite side edges of the first side vertical plate.

[0011] Further, one side of the first side vertical plate is provided with a first side turn-up, and the other side of the first side vertical plate is provided with a second side turn-up, any two of the first side turn-up, the first side bottom plate and the first side vertical plate are arranged at an angle, and any two of the second side turn-up, the first side bottom plate and the first side vertical plate are arranged at an angle, wherein the first supporting lug is arranged at the first side turn-up, and the second supporting lug is arranged at the second side turn-up, when the first side vertical plate is connected with the first side bottom plate turn-up, the first side turn-up is connected with the first side bottom plate turn-up, and when the first side vertical plate is connected with the first side bottom plate turn-up, the second side turn-up is connected with the second side bottom plate turn-up.

[0012] Further, the first side turn-up and the first side bottom plate are an integral structure, and the second side turn-up and the first side bottom plate are an integral structure.

[0013] And / or, the first supporting lug is provided with a first bending recess, and the second supporting lug is provided with a second bending recess.

[0014] Further, the second side support includes an arc-shaped plate, one end of the arc-shaped plate is bent to form a clamping portion, the other end of the arc-shaped plate is bent to form a first connecting piece, and the first connecting piece is provided with a first connecting hole; one end of the first supporting lug away from the first side vertical plate is provided with a clamping groove matched with the clamping portion, and one end of the second supporting lug away from the first side vertical plate is provided with a second connecting hole corresponding to the first connecting hole.

[0015] Further, the top of the first connecting piece is horizontally bent to form a second connecting piece, and the second connecting piece is provided with a pipeline fixing hole.

[0016] Further, the included angle between the first side bottom plate turn-up and the second side bottom plate turn-up is 85°-95°.

[0017] Further, a first reinforcing rib is arranged at the bending portion between the top surface of the bottom seat boss and the top surface of the bottom seat bottom plate.

[0018] The application also provides a motor assembly cooling system comprising the mounting bracket assembly as described above.

[0019] Since the technical improvement and technical effect of the motor assembly cooling system are the same as those of the mounting bracket assembly, the motor assembly cooling system will not be described again.

[0020] The application also provides an automobile comprising the motor assembly cooling system as described above.

[0021] Since the technical improvement and technical effect of the automobile are the same as those of the motor assembly cooling system, the automobile will not be described again. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 Figure 1 is a schematic view of the installation of the installation support assembly of the cooling water pump and the motor in the embodiment of the present application;

[0023] Figure 2 Figure 2 is a schematic view of the structure of the installation support assembly of the cooling water pump in the embodiment of the present application;

[0024] Figure 3 Figure 3 is a schematic view of the structure of the base support in the embodiment of the present application;

[0025] Figure 4 Figure 4 is a schematic view of the structure of the first side support in the embodiment of the present application;

[0026] Figure 5 Figure 5 is a schematic view of the structure of the second side support in the embodiment of the present application;

[0027] Figure 6 Figure 6 is a schematic view of the structure of the installation support assembly in the embodiment of the present application.

[0028] Explanation of reference signs:

[0029] 1, base support; 11, base bottom plate; 111, mounting hole; 12, base boss; 13, first side base flange; 14, second side base flange; 15, first reinforcing rib; 2, first side support; 21, first side bottom plate; 22, first side vertical plate; 23, first side flange; 24, second side flange; 25, first lug; 251, clamping groove; 26, second lug; 261, second connecting hole; 27, second reinforcing rib; 28, third reinforcing rib; 3, second side support; 31, arc-shaped plate; 32, clamping portion; 33, first connecting plate; 331, first connecting hole; 34, second connecting plate; 341, pipeline fixing hole; 4, motor; 5, cooling water pump. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the drawings.

[0031] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] Moreover, in the drawings, the X axis represents the longitudinal direction, that is, the front-rear direction, and the positive direction of the X axis represents the front, and the negative direction of the X axis represents the rear; the Y axis represents the lateral direction, that is, the left-right direction, and the positive direction of the Y axis represents the left, and the negative direction of the Y axis represents the right; and the Z axis represents the vertical direction, that is, the up-down direction, and the positive direction of the Z axis represents the up, and the negative direction of the Z axis represents the down.

[0033] It should be noted that the aforementioned X axis, Y axis and Z axis represent meanings only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0034] In some new energy vehicles, the cooling water pump is integrated on the motor through a water pump support due to the arrangement of the vehicle structure, for example, the water pump support is integrated on the motor through a cantilever structure. The water pump support with the cantilever structure has low rigidity and is prone to resonance with the motor, thereby causing abnormal noise. In severe cases, the water pump support may be broken, affecting the cooling circulation of the power battery.

[0035] To solve the above technical problems, referring to Figures 1-3 The mounting support assembly of the embodiment of the present application comprises a base support 1, a first side support 2 and a second side support 3. The base support 1 comprises a base bottom plate 11. A base boss 12 is concavely formed on the middle part of the base bottom plate 11. The other positions of the base bottom plate 11, such as the two ends of the base bottom plate 11, are used to be connected with the motor 4. One end of the first side support 2 is connected to the base boss 12. The second side support 3 is used to be connected with the other end of the first side support 2, so as to tightly hold the cooling water pump 5 between the first side support 2 and the second side support 3.

[0036] In this embodiment, the cooling water pump 5 can be installed on the motor 4 through the mounting bracket assembly. Specifically, in the base bracket 1, the base bottom plate 11 can be connected and fixed with the motor 4 at the position where the base boss 12 is removed, for example, through the mounting holes 111 at both ends to be bolted with the motor 4. The middle part of the base bottom plate 11 is recessed upward to form a base boss 12, and the normal stiffness of the base bottom plate 11 can be improved through the base boss 12. Correspondingly, the normal stiffness of the top surface of the base boss 12 is also improved. In this way, after the first side bracket 2 is connected and fixed with the base boss 12 at the bottom end, the first side bracket 2 also has high stiffness and modal. Then, after the second side bracket 3 is connected with the top end of the first side bracket 2 to tightly hold the cooling water pump, the mounting bracket assembly and the cooling water pump 5 tightly held inside can withstand the impact of the acceleration of the aforementioned gravity, for example, five times the weight of the motor 4, without breaking and abnormal noise, greatly improving the working reliability of the cooling water pump 5. At the same time, the cooling water pump 5 tightly held in the mounting bracket assembly will not resonate with the motor 4 due to its high modal.

[0037] Referring to Figures 1-3 Optionally, the side edge of one end of the base bottom plate 11 is formed upwardly with a first side base flange 13, and the side edge of the other end of the base bottom plate 11 is formed upwardly with a second side base flange 14. The first side base flange 13 and the second side base flange 14 extend in the direction of the base boss 12 and form an integral structure, and the first side base flange 13 and the second side base flange 14 are arranged at an angle. The base boss 12, the first side base flange 13 and the second side base flange 14 are respectively connected with the first side bracket 2.

[0038] In this embodiment, the side edges of the base bottom plate 11 at both ends are respectively formed upward with a first side base flange 13 and a second side base flange 14, and the normal rigidity of the base bottom plate 11 can be further improved through the first side base flange 13 and the second side base flange 14, and correspondingly, the normal rigidity of the first side base flange 13 and the second side base flange 14 is also improved by the base bottom plate 11; since the first side base flange 13 and the second side base flange 14 both extend in the direction of the base boss 12 and form an integral structure, the normal rigidity of the top surface of the base boss 12 is further improved by the first side base flange 13 and the second side base flange 14, and correspondingly, the normal rigidity of the first side base flange 13 and the second side base flange 14 is also improved by the base boss 12; and since the first side base flange 13 and the second side base flange 14 are arranged at an included angle, that is, the normal direction of the first side base flange 13 and the normal direction of the second side base flange 14 are arranged at an included angle. In this way, the base support 1 has high rigidity in three different directions (the normal direction of the top surface of the base bottom plate 11 and the base boss 12, the normal direction of the first side base flange 13, and the normal direction of the second side base flange 14), and in this way, after the first side support 2 is connected and fixed at the bottom end to the top surface of the base boss 12, the first side base flange 13 and the second side base flange 14, the first side support 2 also has high rigidity and modal in the aforementioned three normal directions, and then after the second side support 3 is connected to the top end of the first side support 2 to tightly hold the cooling water pump, the mounting support assembly and the internally held cooling water pump 5 can withstand the impact of acceleration of more than five times the gravity of the motor 4 in the aforementioned three normal directions (which can be horizontal, vertical and longitudinal directions) without breaking and abnormal noise.

[0039] Specifically, the bottom part of the first side support 2 is respectively welded and fixed to the base boss 12, the first side base flange 13 and the second side base flange 14, to ensure that the structural strength of the entire mounting support assembly is high enough.

[0040] Specifically, referring to Figure 2 , the included angle between the first side base flange 13 and the second side base flange 14 is 85°-95°.

[0041] Here, it should be noted that since the first side base flange 13 and the second side base flange 14 are an integral structure and are approximately perpendicular to each other, that is, the included angle between them is near 90°, the first side base flange 13 can further strengthen the normal rigidity of the second side base flange 14, and correspondingly, the second side base flange 14 also strengthens the normal rigidity of the first side base flange 13, and the included angle between the first side base flange 13 and the second side base flange 14 is preferably 90°, and the rigidity strengthening effect is optimal.

[0042] In this embodiment, the first side base flange 13 and the second side base flange 14 are both perpendicular to the top surface of the base bottom plate 11 and the base boss 12, and the included angle between the first side base flange 13 and the second side base flange 14 is 90°, so that the base bracket 1 has very high rigidity in three mutually perpendicular directions, and the entire mounting bracket assembly also has very high rigidity in the three mutually perpendicular directions. The three mutually perpendicular directions are the normal direction of the top surface of the base bottom plate 11 and the base boss (i.e. the Z-axis direction), the normal direction of the first side base flange 13 (i.e. the Y-axis direction), and the normal direction of the second side base flange 14 (i.e. the X-axis direction).

[0043] Referring to Figure 3 Optionally, a first reinforcing rib 15 is arranged at the bending portion between the top surface of the base boss 12 and the top surface of the base bottom plate 11.

[0044] In this embodiment, by arranging the first reinforcing rib 15 at the bending portion between the top surface of the base boss 12 and the top surface of the base bottom plate 11, the normal rigidity of the top surface of the base bottom plate 11 and the base boss 12 can be further improved, and the vertical rigidity of the entire mounting bracket assembly can also be further improved.

[0045] Referring to Figure 4 and Figure 6 Optionally, the first side bracket 2 comprises a first side bracket body, a first ear 25 and a second ear 26, the first ear 25 and the second ear 26 are arranged on opposite sides of the first side bracket body respectively, and the two ends of the second side bracket 3 are used to be connected with the first ear 25 and the second ear 26 respectively to tightly hold the cooling water pump 5.

[0046] In this embodiment, the bottom of the first side bracket body is welded and fixed with the first side base flange 13, the second side base flange 14 and the top surface of the base boss 12 respectively, and the two ends of the second side bracket 3 are connected with the first ear 25 and the second ear 26 respectively, so as to tightly hold and fix the cooling water pump 5.

[0047] Referring to Figure 4 and Figure 6 Optionally, the first side bracket body comprises a first side bottom plate 21 and a first side vertical plate 22 connected with each other, the first side bottom plate 21 is connected (e.g. welded) with the top surface of the base boss 12, and the first side vertical plate 22 is connected (e.g. welded) with the second side base flange 14 or the first side base flange 13, wherein the first ear 25 and the second ear 26 are arranged on opposite sides of the first side vertical plate 22 respectively.

[0048] Specifically, the first side bottom plate 21 can be an integral structure with the first side vertical plate 22, and the first ear 25 and the second ear 26 are integrally formed with the first side flange 23 and the second side flange 24 respectively, that is, the entire first side bracket 2 is an integral structure.

[0049] In the embodiment, the first side bracket 2 has high rigidity in two directions, which are the normal direction of the first side bottom plate 21 and the normal direction of the first side vertical plate 22, respectively. Thus, after the first side bottom plate 21 is welded with the top surface of the base boss 12 and the first side vertical plate 22 is welded with the second side base flange 14 or the first side base flange 13, the rigidity of the entire mounting bracket assembly in the Z-axis direction can be further improved, and the rigidity of the entire mounting bracket assembly in the X-axis or Y-axis direction can be further improved.

[0050] Referring to Figure 4 and Figure 6 Optionally, one side of the first side vertical plate 22 is provided with a first side flange 23, and the other side of the first side vertical plate 22 is provided with a second side flange 24. Any two of the first side flange 23, the first side bottom plate 21 and the first side vertical plate 22 are arranged at an angle. Any two of the second side flange 24, the first side bottom plate 21 and the first side vertical plate 22 are arranged at an angle. The first lug 25 is arranged at the first side flange 23. The second lug 26 is arranged at the second side flange 24. When the first side vertical plate 22 is welded with the second side base flange 14, the first side flange 23 is welded with the first side base flange 13. When the first side vertical plate 22 is welded with the first side base flange 13, the second side flange 24 is welded with the second side base flange 14.

[0051] In the embodiment, the first side flange 23, the second side flange 24, the first side bottom plate 21 and the first side vertical plate 22 can be an integral structure, and any two of the second side flange 24, the first side bottom plate 21 and the first side vertical plate 22 are arranged at an angle. Any two of the first side flange 23, the first side bottom plate 21 and the first side vertical plate 22 are also arranged at an angle. Thus, the first side bracket 2 has high rigidity in three different directions, which are the normal direction of the first side bottom plate 21, the normal direction of the first side vertical plate 22 and the normal direction of the first side flange 23 and the second side flange 24, respectively. The angle between any two of the second side flange 24, the first side bottom plate 21 and the first side vertical plate 22 is preferably 90°. The angle between any two of the first side flange 23, the first side bottom plate 21 and the first side vertical plate 22 is preferably 90°, which can maximize the rigidity of the first side bracket 2 itself.

[0052] When the first side flange 23 is connected, for example, welded, with the first side base flange 13 (forming a first weld), then the first side upright 22 is welded with the second side base flange 14 (forming a second weld), and the first side bottom plate 21 is welded with the top surface of the base boss 12 (forming a third weld), that is, the first side bracket 2 is welded with the base bracket 1 through the three welds, which not only ensures the rigidity of the first side bracket 2, but also further improves the rigidity of the entire mounting bracket assembly in the X-axis, Y-axis and Z-axis directions.

[0053] Referring to Figure 4 Optionally, the first side flange 23 and the first side bottom plate 21 are an integral structure, and the second side flange 24 and the first side bottom plate 21 are an integral structure.

[0054] And / or, the first lug 25 is provided with a first bending recess, and the second lug 26 is provided with a second bending recess.

[0055] In this embodiment, the bottom edge of the first side flange 23 extends downward and forms an integral structure with the right side edge of the first side bottom plate 21, that is, the first side flange 23 and the first side bottom plate 21 are an integral structure, and the bottom edge of the second side flange 24 extends downward and forms an integral structure with the left side edge of the first side bottom plate 21, that is, the second side flange 24 and the first side bottom plate 21 are an integral structure, which ensures the continuity of the entire first side bracket 2 structure and further improves the rigidity.

[0056] In this embodiment, referring to Figure 4 , the first lug 25 is not a straight plate, but has at least one first bending recess, that is, the first lug 25 is a bent plate, and at the same time, the second lug 26 is not a straight plate, but a bent plate with a second bending recess, so that in the case of ensuring matching or approximately matching with the shape of the side surface of the cooling water pump 5, the rigidity of the first lug 25 and the second lug 26 can be further improved. The second lug 26 is provided with a third reinforcing rib 28 at the second bending recess, which can further improve the rigidity of the second lug 26. The first lug 25 is provided with a second reinforcing rib 27 at the first bending recess, which can further improve the rigidity of the first lug 25.

[0057] Referring to Figures 4-6 Optionally, the second side bracket 3 includes an arc-shaped plate 31, one end of the arc-shaped plate 31 is bent to form a clamping portion 32, the other end of the arc-shaped plate 31 is bent to form a first connecting piece 33, and the first connecting piece 33 is provided with a first connecting hole 331; one end of the first lug 25 away from the first side upright 22 is provided with a clamping groove 251 matched with the clamping portion 32, and one end of the second lug 26 away from the first side upright 22 is provided with a second connecting hole 261 corresponding to the first connecting hole 331.

[0058] In the embodiment, the main body of the second side support 3 is an arc plate 31 capable of tightly embracing the outer side of the cooling water pump 5, one end of the arc plate 31 is provided with a clamping portion 32, and the other end is provided with a first connecting plate 33, so that the clamping portion 32 at one end of the arc plate 31 is clamped into the clamping groove 251 at the end of the first lug 25, and then the first connecting hole 331 on the first connecting plate 33 is bolted with the second connecting hole 261 on the second lug 26, so as to tightly embrace the cooling water pump 5 on the inner side.

[0059] Referring to Figure 6 Optionally, the top of the first connecting plate 33 is horizontally bent to form a second connecting plate 34, and the second connecting plate 34 is provided with a pipeline fixing hole 341.

[0060] In the embodiment, the top of the first connecting plate 33 is horizontally bent to form a second connecting plate 34, and the second connecting plate 34 is provided with a pipeline fixing hole 341, which can fix the water pump pipeline here to prevent interference with other pipeline structures of the automobile.

[0061] Another embodiment of the present application also provides a motor assembly cooling system comprising the mounting support assembly as described above.

[0062] Since the technical improvement and technical effect of the motor assembly cooling system are the same as those of the mounting support assembly, the motor assembly cooling system will not be described again.

[0063] Still another embodiment of the present application also provides an automobile comprising the motor assembly cooling system as described above.

[0064] Since the technical improvement and technical effect of the automobile are the same as those of the motor assembly cooling system, the automobile will not be described again.

[0065] The terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features.

[0066] Although the present application is disclosed as above, the protection scope of the present application is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and these changes and modifications will fall within the protection scope of the present application.

Claims

1. A mounting bracket assembly, characterized in that, The system includes a base bracket (1), a first side bracket (2), and a second side bracket (3). The base bracket (1) includes a base plate (11), and a base boss (12) is formed in the middle of the base plate (11). The remaining part of the base plate (11) is used to connect to the motor (4). One end of the first side bracket (2) is connected to the base boss (12). The second side bracket (3) is used to connect to the other end of the first side bracket (2) so as to hold the cooling water pump (5) between the first side bracket (2) and the second side bracket (3). A first side base flange (13) is formed on the side of one end of the base plate (11) and a second side base flange (14) is formed on the side of the other end of the base plate (11). The first side base flange (13) and the second side base flange (14) both extend toward the base boss (12) and form an integral structure. The first side base flange (13) and the second side base flange (14) are set at an angle. The base boss (12), the first side base flange (13) and the second side base flange (14) are respectively connected to the first side bracket (2).

2. The mounting bracket assembly according to claim 1, characterized in that, The first side bracket (2) includes a first side bracket body, a first ear (25) and a second ear (26). The first ear (25) and the second ear (26) are respectively disposed on opposite sides of the first side bracket body. The two ends of the second side bracket (3) are respectively used to connect with the first ear (25) and the second ear (26) to hold the cooling water pump (5).

3. The mounting bracket assembly according to claim 2, characterized in that, The first side support body includes a first side base plate (21) and a first side vertical plate (22) connected to each other. The first side base plate (21) is connected to the top surface of the base boss (12). The first side vertical plate (22) is connected to the second side base flange (14) or the first side base flange (13). The first support ear (25) and the second support ear (26) are respectively disposed on the opposite sides of the first side vertical plate (22).

4. The mounting bracket assembly according to claim 3, characterized in that, A first side flange (23) is provided on one side of the first side vertical plate (22), and a second side flange (24) is provided on the other side of the first side vertical plate (22). Any two of the first side flange (23), the first side bottom plate (21), and the first side vertical plate (22) are arranged at an angle. Any two of the second side flange (24), the first side bottom plate (21), and the first side vertical plate (22) are arranged at an angle. The first support ear (25) is provided at the first side flange (23), and the second support ear (26) is provided at the second side flange (24). When the first side vertical plate (22) is connected to the second side base flange (14), the first side flange (23) is connected to the first side base flange (13). When the first side vertical plate (22) is connected to the first side base flange (13), the second side flange (24) is connected to the second side base flange (14).

5. The mounting bracket assembly according to claim 4, characterized in that, The first side flange (23) and the first side bottom plate (21) are an integral structure, and the second side flange (24) and the first side bottom plate (21) are an integral structure; And / or, the first branch ear (25) is provided with a first bending recess, and the second branch ear (26) is provided with a second bending recess.

6. The mounting bracket assembly according to claim 4, characterized in that, The second side bracket (3) includes an arc-shaped plate (31), one end of which is bent to form a snap-fit ​​part (32), and the other end of which is bent to form a first connecting piece (33). The first connecting piece (33) is provided with a first connecting hole (331). The first support ear (25) is provided with a snap-fit ​​groove (251) that cooperates with the snap-fit ​​part (32) at one end away from the first side vertical plate (22), and the second support ear (26) is provided with a second connecting hole (261) that corresponds to the first connecting hole (331) at one end away from the first side vertical plate (22).

7. The mounting bracket assembly according to claim 6, characterized in that, The top of the first connecting piece (33) is horizontally bent to form a second connecting piece (34), and the second connecting piece (34) is provided with a pipe fixing hole (341).

8. The mounting bracket assembly according to claim 1, characterized in that, The included angle between the first side base flange (13) and the second side base flange (14) is 85°-95°.

9. The mounting bracket assembly according to claim 1, characterized in that, A first reinforcing rib (15) is provided at the bend between the top surface of the base boss (12) and the top surface of the base plate (11).

10. A motor assembly cooling system, characterized in that, Includes the mounting bracket assembly as described in any one of claims 1-9.

11. A car, characterized in that, Includes the motor assembly cooling system as described in claim 10.

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