Electric control system mounting bracket capable of isolating vibration, reducing noise and resisting electromagnetic interference

Abstract

The utility model discloses an electric control system mounting bracket capable of isolating vibration, reducing noise and resisting electromagnetic interference, and belongs to the technical field of new energy automobiles. The device mainly comprises an electric control system and an installation support, the positions, close to the four corners, of the electric control system are fixedly connected with the installation support through buffering protection devices respectively, and a gap is formed between the bottom of the electric control system and the installation support; the buffering protection device comprises an upper shell, a first tower-shaped spring and a buffering assembly which are arranged up and down are arranged in the upper shell, the lower end of the upper shell is fixedly connected with a lower shell, a second tower-shaped spring abutting against the buffering assembly is arranged in the upper shell, the upper shell is connected with a fastening bolt in a penetrating mode, and a threaded hole is formed in the bottom of the fastening bolt. A locking bolt is connected to the bottom of the buffer assembly in a penetrating mode and is in threaded connection with the threaded hole. The buffering protection device is additionally arranged, the structure is compact, the buffering effect is good, and vibration and noise caused by mechanical hard connection of an electric control system in the vehicle running process are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of new energy vehicles, and in particular relates to an electric control system mounting bracket capable of isolating vibration, reducing noise and resisting electromagnetic interference. Background Art

[0002] The electronic control system (ECS) of new energy vehicles (NEVs) is a core component responsible for managing and optimizing the various functions of the electric drive system, ensuring efficient, safe, and comfortable vehicle operation. During installation, these systems typically require support brackets. Existing mounting brackets for these systems typically employ simple mechanical connections. After prolonged operation, these bracket bolts are prone to fatigue failure, resulting in malfunction of the NEV.

[0003] To address the above-mentioned issues, patent publication number "CN108909650A" discloses a mounting bracket for an electric control system for a new energy vehicle. The bracket comprises a lower frame, two edge plates with an "L"-shaped longitudinal section, the two edge plates being arranged in parallel, a first connecting plate being vertically fixed to the center of the two edge plates, connecting rods being vertically fixed to the two edge plates on one side of the first connecting plate at equal intervals, a second connecting plate being vertically fixed to the top ends of the two edge plates on the other side of the first connecting plate, and a rectangular fixing frame being fixed to the two edge plates between the second connecting plate and the first connecting plate. The bracket has a simple structure, is easy to install, occupies a smaller space, and can provide a buffering and protective effect on the installed electric control system for the new energy vehicle.

[0004] Although the above-mentioned mounting bracket has a buffering effect on the electronic control system, the following problems still exist during use: 1. The buffer protection device relies on multiple springs to assist in vibration reduction, which makes the mounting bracket structure too complicated, the production cost is high, and the subsequent maintenance is inconvenient; 2. The above-mentioned mounting bracket can only play the role of fixing the electronic control system, and the vehicle's high-speed PCB contains a large number of high-frequency signal lines, integrated circuit pins, and various connectors. The above-mentioned components are all radiation interference sources with antenna characteristics, which can emit electromagnetic waves and affect the normal operation of the electronic control system and other subsystems, making the normal operation of the vehicle posing certain risks. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the existing technology and provide an electronic control system mounting bracket with vibration isolation, noise reduction and electromagnetic interference resistance, which adds a buffer protection device, has a compact structure and good buffering effect, and avoids vibration and noise caused by mechanical hard connection of the electronic control system during vehicle operation.

[0006] The vibration-isolating, noise-reducing, and electromagnetic-interference-resistant electric control system mounting bracket comprises an electric control system and a mounting bracket. The electric control system is fixedly connected to the mounting bracket via buffer protection devices near the four corners, and a gap is provided between the bottom of the electric control system and the mounting bracket.

[0007] The buffer protection device includes an upper shell, in which a tower-shaped spring 1 and a buffer assembly are arranged up and down. The lower end of the upper shell is fixedly connected to the lower shell, and a tower-shaped spring 2 is provided in the upper shell to resist the buffer assembly. A fastening bolt is passed through the upper shell, and a threaded hole is provided at the bottom of the fastening bolt. A locking bolt is passed through the bottom of the buffer assembly, and the locking bolt is threadedly connected to the threaded hole.

[0008] Preferably, the small-diameter end of the conical spring 2 is fixedly connected to the buffer assembly by a locking bolt, the small-diameter ends of the conical spring 1 and the conical spring 2 are respectively against the upper and lower end surfaces of the buffer assembly, the large-diameter end of the conical spring 1 is against the top of the upper shell, and the large-diameter end of the conical spring 2 is against the bottom of the lower shell.

[0009] Preferably, the buffer assembly includes a buffer pad with an inner hole, a buffer fixing plate 1 is provided above the buffer pad, a buffer fixing plate 2 is provided below the buffer pad, a ring platform coaxial with the inner hole is fixed on the buffer fixing plate 2, a limiting ring is provided on the ring platform, and the outer circumference of the limiting ring is tightly matched with the inner hole of the buffer pad.

[0010] Preferably, the second buffer fixing plate and the ring platform are both provided with a center hole, a clamping ring that matches the center hole is fixed on the locking bolt, and a through hole that matches the locking bolt is provided on the first buffer fixing plate.

[0011] Preferably, an annular groove is provided at the bottom inner side of the lower shell, a fixing nut is fixedly connected in the annular groove, and a mounting hole corresponding to the threaded hole of the fixing nut is provided at the bottom inner side of the lower shell, and the diameter of the mounting hole is larger than the diameter of the locking bolt.

[0012] Preferably, a disc-shaped gasket is provided between the upper housing and the bottom of the electronic control system.

[0013] Preferably, the outer surface of the mounting bracket is coated with an electromagnetic shielding coating.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. Conical springs 1 and 2 are added to the buffer protection device. When compressed, the small diameter of the conical springs 1 and 2 can be compressed into the inside of the large diameter. Therefore, the buffer protection device is more space-saving by providing the conical springs 1 and 2.

[0016] 2. The fastening bolts and locking bolts in the buffer protection device cooperate to form an effective sliding multi-directional buffer structure with the buffer assembly and the conical spring 1 and the conical spring 2 inside the buffer protection device. When the vehicle runs on rough roads, the vibration energy generated can be transmitted to the buffer assembly in the buffer protection device through the fastening bolts. Under the three-dimensional buffering action of the conical spring 1 and the conical spring 2, the buffer assembly moves slightly up and down or shakes left and right, thereby offsetting the vibration transmitted by the fastening bolts, avoiding vibration and noise caused by the mechanical hard connection of the electronic control system during vehicle operation.

[0017] 3. The outer surface of the mounting bracket is coated with an electromagnetic shielding coating, which can reduce the electromagnetic interference caused by the outside world to the electronic control system, thereby improving the stability of normal operation of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the top structure of the utility model;

[0020] Figure 3 Schematic diagram of the external structure of the buffer protection device;

[0021] Figure 4 Schematic diagram of the internal structure of the buffer protection device;

[0022] Figure 5 This is a schematic diagram of the disassembly of the buffer protection device;

[0023] Figure 6 It is a structural diagram of the lower shell.

[0024] In the figure, 1. Mounting bracket; 101. U-shaped bracket; 102. Fixing bracket; 2. Electronic control system; 3. Buffer protection device; 301. Anti-slip gasket; 302. Fastening bolt; 3021. Threaded hole; 303. Disc gasket; 304. Upper shell; 305. Lower shell; 3051. Mounting hole; 306. Cone spring 1; 307. Cone spring 2; 308. Fixing nut; 309. Locking bolt; 3091. Snap ring; 310. Buffer fixing plate 2; 3101. Ring platform; 311. Buffer fixing plate 1; 312. Buffer pad; 313. Limiting ring. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] The directional terms used in the detailed description are intended solely to facilitate understanding of the technical solutions described herein by those skilled in the art based on the visual orientation shown in the accompanying drawings. Unless otherwise specified or limited, the terms "dispose," "install," and "connect" are to be interpreted broadly, and those skilled in the art will understand their specific meanings in this utility model based on the specific circumstances.

[0027] like Figures 1 to 6 As shown, an electric control system mounting bracket with vibration isolation, noise reduction and electromagnetic interference resistance includes an electric control system 2 and a mounting bracket 1. The electric control system 2 is the existing technology. The electric control system 2 is fixedly connected to the mounting bracket 1 through the buffer protection device 3 near the four corners, and there is a distance between the bottom of the electric control system 2 and the mounting bracket 1, that is, the electric control system 2 is suspended on the upper part of the mounting bracket 1, and is only connected to the mounting bracket 1 through the buffer protection device 3 near the four corners.

[0028] like Figures 3 to 5 As shown, the buffer protection device 3 includes an upper shell 304, and the upper shell 304 is provided with a tower spring 1 306 and a buffer assembly arranged up and down, the large-diameter end of the tower spring 1 306 is abutted against the top of the upper shell 304, and the small-diameter end of the tower spring 1 306 is abutted against the upper end face of the buffer assembly, the lower end of the upper shell 304 is fixedly connected to the lower shell 305, and the upper shell 304 is provided with a tower spring 2 307 abutting against the buffer assembly, the small-diameter end of the tower spring 2 307 is fixedly connected to the lower end face of the buffer assembly by a locking bolt 309, the small-diameter end of the tower spring 2 307 is abutted against the lower end face of the buffer assembly, and the large-diameter end of the tower spring 2 307 is abutted against the bottom of the lower shell 305.

[0029] In this embodiment, the upper shell 304 and the lower shell 305 can be connected by threads or fixedly connected by fasteners.

[0030] When the conical spring 1 306 and the conical spring 2 307 are compressed, the small diameter portion can be compressed to the inside of the large diameter portion. Therefore, by providing the conical spring 1 306 and the conical spring 2 307 , the buffer protection device 3 can save more space.

[0031] The upper shell 304 is connected with a fastening bolt 302, which passes through the upper end of the upper shell 304 and the conical spring 306 in sequence, and the bottom of the fastening bolt 302 is against the upper end surface of the buffer component. Figure 5As shown, a threaded hole 3021 is formed at the bottom of the fastening bolt 302, and a locking bolt 309 is connected to the bottom of the buffer assembly. The locking bolt 309 passes through the small-diameter end of the second conical spring 307 and the buffer assembly, and is threadedly connected to the threaded hole 3021. The fastening bolt 302 and the locking bolt 309 cooperate to form an effective sliding multi-directional buffer structure within the upper shell 304 and the lower shell 305. When the vehicle runs on rough roads, the vibration generated is transmitted to the buffer assembly in the buffer protection device 3 through the fastening bolt 302. Under the three-dimensional buffering action of the first conical spring 306 and the second conical spring 307, the buffer assembly moves slightly up and down, thereby offsetting the vibration transmitted by the fastening bolt 302 and avoiding vibration and noise caused by the mechanical hard connection of the electronic control system 2 during vehicle operation.

[0032] like Figure 5 As shown, the buffer assembly includes a buffer pad 312 with an inner hole. The buffer pad 312 is made of hard rubber. A buffer fixing plate 1 311 is installed above the buffer pad 312, and a buffer fixing plate 2 310 is installed below the buffer pad 312. A ring 3101 coaxial with the inner hole is fixed to the buffer fixing plate 2 310. During installation, the ring 3101 is inserted into the inner hole. The outer wall of the ring 3101 is provided with a limit ring 313. The limit ring 313 is preferably made of soft rubber, and the outer circumference of the limit ring 313 is tightly matched with the inner hole of the buffer pad 312. The limit ring 313 not only serves as a coaxial limit, but also has a certain buffering effect, which can absorb vibrations from the side.

[0033] A center hole is provided on the buffer fixing plate 2 310 and the ring platform 3101. A retaining ring 3091 that cooperates with the center hole is fixed on the locking bolt 309. Under the action of the retaining ring 3091, the locking bolt 309 can rotate smoothly in the center hole. A through hole that cooperates with the locking bolt 309 is provided on the buffer fixing plate 1 311. The diameter of the through hole is smaller than the center hole, and the diameter of the through hole is slightly larger than the diameter of the threaded column of the locking bolt 309.

[0034] like Figure 6 As shown, the bottom of the lower housing 305 is provided with an annular groove, into which a fixing nut 308 is fixedly connected. The bottom of the lower housing 305 is provided with a mounting hole 3051 corresponding to the threaded hole of the fixing nut 308. The diameter of the mounting hole 3051 is larger than the diameter of the locking bolt 309. The mounting hole 3051 not only facilitates the tightening of the locking bolt 309, but also facilitates the fixed connection to the mounting bracket 1 via bolts. The annular groove provides space for the arrangement of the locking bolt 309, preventing interference between the locking bolt 309 and the second conical spring 307. This makes the overall structure of the buffer protection device 3 more compact, and makes the connection and fixation to the mounting bracket 1 more convenient, thereby improving assembly efficiency.

[0035] During installation, a disc-shaped gasket 303 is provided between the top of the upper housing 304 and the bottom of the electronic control system 2 , and the fastening bolt 302 passes through the disc-shaped gasket 303 . The disc-shaped gasket 303 has a certain deformation ability during assembly, which can prevent the fastening bolt 302 from loosening.

[0036] In this embodiment, the outer surface of the mounting bracket 1 is coated with an electromagnetic shielding coating, which can reduce the electromagnetic interference caused by the outside world to the electronic control system, thereby improving the stability of normal operation of the vehicle. Figure 1 As shown, the bottom of the mounting bracket 1 is fixedly connected to a plurality of U-shaped brackets 101 and fixing brackets 102 for communicating with the vehicle body. The mounting bracket 1 can be fixedly connected to the vehicle body by fasteners matching the U-shaped brackets 101 and the fixing brackets 102.

[0037] During installation, the buffer protection device 3 can be fixed together with the electronic control system 2 first. The assembly method is as follows: an anti-slip gasket 301 is set between the fastening bolt 302 and the assembly hole of the electronic control system 2, and a disc gasket 303 is set between the bottom of the assembly hole of the electronic control system 2 and the upper shell 304 of the buffer protection device 3. The fastening bolt 302 passes through the anti-slip gasket 301, the assembly hole of the electronic control system 2, the disc gasket 303, the upper shell 304 and the tower spring 1 306 in turn, and then the locking bolt 309 enters the lower shell 305 from the mounting hole 3051 at the bottom of the lower shell 305, and passes through the tower spring 2 307, the buffer fixing plate 2 310, the buffer pad 312 and the buffer fixing plate 1 311 in turn, and is threadedly connected with the threaded hole 3021 at the bottom of the fastening bolt 302, so that the buffer protection device 3 and the electronic control system are fixed together.

[0038] When the electronic control system 2 needs to be connected to the mounting bracket 1, the mounting hole 3051 is aligned with the assembly hole on the mounting bracket 1, and the connection between the electronic control system 2 and the mounting bracket 1 can be completed quickly and conveniently by threading the bolt with the fixing nut 308 inside the mounting hole 3051.

[0039] Finally, although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An electric control system mounting bracket with vibration isolation, noise reduction and electromagnetic interference resistance, comprising an electric control system (2) and a mounting bracket (1), characterized in that: The electric control system (2) is fixedly connected to the mounting bracket (1) at positions near the four corners via buffer protection devices (3), and a gap is provided between the bottom of the electric control system (2) and the mounting bracket (1); The buffer protection device (3) comprises an upper shell (304), wherein a first tower-shaped spring (306) and a buffer assembly are provided in the upper shell (304), the lower end of the upper shell (304) is fixedly connected to the lower shell (305), and a second tower-shaped spring (307) is provided in the upper shell (304) to abut against the buffer assembly. A fastening bolt (302) is passed through the upper shell (304), and a threaded hole (3021) is provided at the bottom of the fastening bolt (302). A locking bolt (309) is passed through the bottom of the buffer assembly, and the locking bolt (309) is threadedly connected to the threaded hole (3021).

2. The mounting bracket for an electric control system with vibration isolation, noise reduction, and electromagnetic interference resistance according to claim 1, characterized in that: The small-diameter end of the tower-shaped spring 2 (307) is fixedly connected to the buffer assembly via a locking bolt (309), the small-diameter ends of the tower-shaped spring 1 (306) and the tower-shaped spring 2 (307) are respectively against the upper and lower end surfaces of the buffer assembly, the large-diameter end of the tower-shaped spring 1 (306) is against the top of the upper shell (304), and the large-diameter end of the tower-shaped spring 2 (307) is against the bottom of the lower shell (305).

3. The mounting bracket for an electric control system with vibration isolation, noise reduction, and electromagnetic interference resistance according to claim 1, characterized in that: The buffer assembly comprises a buffer pad (312) with an inner hole, a buffer fixing plate 1 (311) is provided above the buffer pad (312), a buffer fixing plate 2 (310) is provided below the buffer pad (312), a ring platform (3101) coaxial with the inner hole is fixed on the buffer fixing plate 2 (310), a limiting ring (313) is sleeved on the ring platform (3101), and the outer circumference of the limiting ring (313) is tightly matched with the inner hole of the buffer pad (312).

4. The mounting bracket for an electric control system with vibration isolation, noise reduction, and electromagnetic interference resistance according to claim 3, characterized in that: The second buffer fixing plate (310) and the ring platform (3101) are both provided with a center hole, a clamping ring (3091) that matches the center hole is fixed on the locking bolt (309), and a through hole that matches the locking bolt (309) is provided on the first buffer fixing plate (311).

5. The mounting bracket for an electric control system with vibration isolation, noise reduction and electromagnetic interference resistance according to claim 1, characterized in that: The bottom of the lower shell (305) is provided with an annular groove, in which a fixing nut (308) is fixedly connected. The bottom of the lower shell (305) is provided with a mounting hole (3051) corresponding to the threaded hole of the fixing nut (308), and the diameter of the mounting hole (3051) is larger than the diameter of the locking bolt (309).

6. The mounting bracket for an electric control system with vibration isolation, noise reduction, and electromagnetic interference resistance according to claim 1, characterized in that: A disc-shaped gasket (303) is provided between the upper housing (304) and the bottom of the electric control system (2).

7. An electric control system mounting bracket with vibration isolation, noise reduction, and electromagnetic interference resistance according to any one of claims 1 to 6, characterized in that: The outer surface of the mounting bracket (1) is coated with an electromagnetic shielding coating.

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