Domain controller with vertically arranged fans

Abstract

A domain controller with fans vertically arranged comprises an upper shell, a bottom plate, a PCBA circuit board, a cooling fan and a fan cover. The upper shell and the bottom plate are connected and jointly define an inner cavity, and a heat dissipation fin set is arranged on the top wall of the upper shell. The PCBA circuit board is fixed in the inner cavity, and a fan connector interface is installed on the PCBA circuit board. The position, close to one side of the heat dissipation fin set, of the top wall of the upper shell protrudes downwards to form a concave part. A fan connector opening is formed in the position, corresponding to the fan connector interface, of the top wall of the upper shell, and a fan connector water retaining wall is arranged on the periphery of the fan connector opening. The PCBA circuit board and the bottom plate are respectively provided with a first gap and a second gap at positions corresponding to the concave part, and the concave part passes through the first gap and the second gap; and the cooling fan is vertically arranged in the concave part. The fan cover is connected with the upper shell, covers the opening of the cooling fan and the opening of the fan connector, and forms ventilation openings in front of and behind the cooling fan respectively. The LED lamp is good in heat dissipation and waterproof effect and small in occupied space.

Description

Technical Field

[0001] The utility model relates to a domain controller of a vehicle. Background Art

[0002] In recent years, with the rapid development of the automotive industry, automotive systems and functions have become increasingly modularized and integrated. This has led to higher requirements for automotive domain controllers, with greater emphasis on heat dissipation and waterproofing. For domain controllers with high chip power consumption and strict heat dissipation requirements, active cooling solutions using air cooling are often employed. Horizontal fan installation is a common method, but because horizontal fans occupy a large amount of heat dissipation surface, have high system impedance, and obstruct air circulation, they provide poor heat dissipation. Furthermore, horizontal fans occupy a large amount of space, hindering the miniaturization of domain controllers. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a domain controller with good heat dissipation and waterproof effects and small occupied space.

[0004] The fan cover is connected to the upper shell and the lower shell and the lower shell and the lower shell and the lower shell and the lower shell and the lower shell and the lower shell and the lower shell and the lower shell and the lower shell and the upper ...

[0005] The utility model has at least the following advantages and features:

[0006] 1. Compared with the traditional domain controller structure, the embodiment of the present invention uses a vertical cooling fan as an active heat dissipation solution, and uses a partially covered fan cover and other structures on the structure, so that the domain controller has excellent active and passive heat dissipation capabilities. The vertical arrangement of the cooling fan also greatly reduces the heat dissipation area occupied by the domain controller;

[0007] 2. In this embodiment of the utility model, the PCBA circuit board and the bottom plate are configured with a notched structure. The cooling fan is installed in the recessed portion of the upper housing. The recessed portion passes through the first notch of the PCBA circuit board and the second notch of the bottom plate. This achieves a lowered installation position for the cooling fan, effectively reducing the overall height of the domain controller.

[0008] 3. The embodiment of the utility model utilizes the fan cover to block water and the water retaining wall to block water, which can meet the waterproof requirements of IPX2. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 Shown is an exploded schematic diagram of a domain controller according to an embodiment of the present invention.

[0010] Figure 2 A schematic top view of a domain controller according to an embodiment of the present invention is shown.

[0011] Figure 3 Shown Figure 2 Schematic diagram of CC cross-section.

[0012] Figure 4 The figure shows a schematic structural diagram of an upper shell according to an embodiment of the present utility model.

[0013] Figure 5 A schematic diagram of the assembly of a heat dissipation fan and an upper housing according to an embodiment of the present utility model is shown. DETAILED DESCRIPTION

[0014] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] Figures 1 to 5 The structure of the domain controller according to the embodiment of the present utility model is shown. Figures 1 to 5 According to an embodiment of the present invention, a domain controller with a vertical fan arrangement includes an upper shell 1, a base plate 2, a PCBA circuit board 3, a cooling fan 4, a fan cover 5 and a rubber pad 6.

[0016] The upper housing 1 is connected to the base plate 2 and together define an inner cavity 10. Preferably, the upper housing 1 and base plate 2 are detachably connected, including but not limited to screws. A heat sink fin assembly 1a is provided on the top wall of the upper housing 1. In this embodiment, the heat sink fin assembly 1a includes a plurality of spaced-apart heat sink fins 11 extending longitudinally along the upper housing 1.

[0017] The PCBA circuit board 3 is secured within the inner cavity 10 by screws, including but not limited to connecting the upper housing 1, base plate 2, and PCBA circuit board 3. The PCBA circuit board 3 is equipped with a fan connector interface 31 and multiple connection ports 32, including a communication port and a power port.

[0018] The top wall of the upper housing 1 is bulged downwardly adjacent to one side of the heat sink assembly 1a to form a recessed portion 13. A drainage hole 130 is defined in the bottom wall of the recessed portion 13. A fan connector opening 14 is defined in the top wall of the upper housing 1 at a position corresponding to the fan connector interface 31 to expose the fan connector interface 31. Fan connector opening 14 is surrounded by upwardly extending fan connector water retaining walls 15.

[0019] The PCBA circuit board 3 and the bottom plate 2 are respectively provided with a first notch 33 and a second notch 24 at positions corresponding to the recessed portion 13. The recessed portion 13 passes through the first notch 33 and the second notch 24. In this embodiment, the first notch 33 is provided at the edge of the PCBA circuit board 3, and the second notch 24 is provided at the edge of the bottom plate 2.

[0020] The rubber pad 6 is placed in the recessed portion 13. In this embodiment, the rubber pad 6 includes a bottom wall 60, a left side wall 61, a right side wall 62, a front left baffle 63, a front right baffle 64, a rear left baffle 65, and a rear right baffle 66. The bottom ends of the left side wall 61 and the bottom ends of the right side wall 62 are connected to the left and right ends of the bottom wall 60, respectively. The front left baffle 63 is connected to the front end of the left side wall 61 and the left portion of the front end of the bottom wall 60, respectively. The front right baffle 64 is connected to the front end of the right side wall 62 and the right portion of the front end of the bottom wall 60, respectively. The rear left baffle 65 is connected to the rear end of the left side wall 61 and the left portion of the rear end of the bottom wall 60, respectively. The rear right baffle 66 is connected to the rear end of the right side wall 62 and the right portion of the rear end of the bottom wall 60, respectively.

[0021] The cooling fan 4 is placed upright on the bottom wall 60 of the rubber pad 6 and is surrounded by the left side wall 61, right side wall 62, front left baffle 63, front right baffle 64, rear left baffle 65, and rear right baffle 66 of the rubber pad 6. The cooling fan 4 is connected to the fan connector interface 31 on the PCBA circuit board 3 via a connecting wire 41 extending into the fan connector opening 14 (the fan connector interface 31 partially extends into the fan connector opening 14 and is connected to the fan connector at one end of the connecting wire 41, or the fan connector at one end of the connecting wire 41 passes through the fan connector opening 14 and is connected to the fan connector interface 31). The rubber pad 6 has a certain degree of elasticity and can provide a certain shock-absorbing and buffering effect when the cooling fan 4 is working. In addition, when installing the heat dissipation, the compressibility of the rubber pad can be utilized to set a certain installation interference to ensure reliable and stable installation of the cooling fan.

[0022] Preferably, the top wall of the upper housing 1 is provided with a pair of vertical plates 18, one adjacent to the left and right sides of the recess 13. The inner walls of the pair of vertical plates 18 are each provided with a guide groove 188 extending in the height direction. The outer surfaces of the left and right sides of the rubber pad 6 are each provided with a protrusion 68 that mates with the corresponding guide groove 188. Each protrusion 68 is received in the corresponding guide groove 188 and can move within the guide groove 188 along the height direction of the vertical plates. The engagement of the protrusion 68 with the guide groove 188 serves to position and limit the rubber pad 6, thereby ensuring stable installation of the rubber pad 6. In this embodiment, the inner walls of the pair of vertical plates 18 are each provided with a pair of ribs 187 extending in the height direction. The gap between the pair of ribs 187 constitutes the aforementioned guide groove 188. The vertical plate 18 adjacent to the right side wall of the recess 13 comprises a portion of the fan connector water retaining wall 15.

[0023] Furthermore, the bottom wall 60 of the rubber pad is provided with a drain port 601. The drain port 601 is opened at the edge of the bottom wall 60 of the rubber pad.

[0024] In other embodiments, the domain controller is not provided with the rubber pad 6 , and the cooling fan 4 is directly placed upright on the bottom wall of the recessed portion 13 .

[0025] The PCBA 3 and base plate 2 are configured with notches. The cooling fan 4 is installed in the recess 13 of the upper housing 1, with the recess 13 extending through the first notch 33 of the PCBA 3 and the second notch 23 of the base plate 2. This lowers the installation position of the cooling fan 4, effectively reducing the overall height of the domain controller by approximately 10 mm. Because the cooling fan 4 is positioned vertically, the system impedance is low, significantly reducing the heat dissipation area occupied by the fan itself.

[0026] The fan cover 5 is connected to the upper housing 1, covering the cooling fan 4 and the fan connector opening 14, and forming vents 50 in front and behind the cooling fan 4 (i.e., exposing the front and back of the cooling fan so as not to affect convection), and the fan cover 5 abuts the top of the cooling fan 4, pressing the cooling fan 4 to play a positioning role. The cooling fan 4 and the fan connector opening 14 are both arranged on one side of the longitudinal direction of the multiple cooling fins 11. Preferably, the fan cover 5 is connected to the upper housing 1 by screws. The fan cover 5 adopts a partial covering method and does not fully cover the cooling fan 4. This can ensure that the domain controller structure has the ability to actively dissipate heat, and can also ensure that when the cooling fan is not started, the domain controller has good passive heat dissipation capabilities.

[0027] In this embodiment, multiple connection ports 32 are installed on the edge of the PCBA circuit board 3, and the side of the upper shell 1 is provided with multiple port openings 12 for exposing the multiple connection ports 32 one by one. The top wall of the upper shell 1 is also provided with an upwardly extending connection port water retaining wall 16, and the connection port water retaining wall 16 is located directly above the multiple connection ports 32.

[0028] During assembly, first install the cooling fan 4 and rubber pad 6, then install it on the upper housing 1. Then, use screws to connect the upper housing 1, PCBA 3, and base plate 2. Insert the fan connector on the cooling fan 4's cable 41 into the fan connector opening 14 and connect it to the fan connector interface 31 on the PCBA 3. Then, press the fan cover 5 onto the cooling fan 4 and secure it to the upper housing 1 with screws.

[0029] After the overall structure is installed, when water drips from above, the connection port water retaining wall 16 can protect the connection port 32 from water ingress, and the connection port water retaining wall 16 has a certain length, which can meet the requirement that when the direction of the water droplets is tilted by ±15°, the structure can still effectively block the water droplets.

[0030] Fan cover 1 prevents water droplets from directly dripping onto the fan and fan connector interface. Water flowing from the cooling fins into the fan position can be drained smoothly through drain holes 130 without causing water accumulation. Fan connector water retaining wall 15 prevents water flowing from the cooling fins from entering fan connector opening 14, protecting the fan connector. Cooling fan 4 can be equipped with an automotive-grade fan, meeting IP52 dust and water resistance requirements.

[0031] The embodiment of the utility model uses a fan cover and a rubber pad to ensure that the cooling fan is installed vertically and stably, and uses the fan cover to block water and the water retaining wall to block water, thereby achieving the IPX2 waterproof requirement.

[0032] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A domain controller with a vertical fan arrangement, comprising an upper housing, a bottom plate, a PCBA circuit board, a cooling fan, and a fan cover; the upper housing is connected to the bottom plate and together define an inner cavity, the top wall of the upper housing is provided with a cooling fin group; the PCBA circuit board is fixed in the inner cavity, and the PCBA circuit board is installed with a fan connector interface; characterized in that: The top wall of the upper housing is bulged downward at a position adjacent to one side of the heat dissipation fin group to form a recessed portion, and a drainage hole is provided on the bottom wall of the recessed portion; a fan connector opening is provided on the top wall of the upper housing at a position corresponding to the fan connector interface, and a fan connector water retaining wall extending upward is provided around the fan connector opening; The PCBA circuit board and the bottom plate are respectively provided with a first notch and a second notch at positions corresponding to the recessed portion, and the recessed portion passes through the first notch and the second notch; the cooling fan is uprightly placed in the recessed portion, and the cooling fan is connected to the fan connector interface via a connecting wire extending into an opening of the fan connector; The fan cover is connected to the upper shell, covers the heat dissipation fan and the fan connector opening, and forms ventilation holes in front and behind the heat dissipation fan respectively, and the fan cover abuts against the top of the heat dissipation fan.

2. The domain controller according to claim 1, wherein: The domain controller includes a rubber pad, which is placed in the recessed portion. The heat dissipation fan is uprightly placed on the bottom wall of the rubber pad, and the bottom wall of the rubber pad is provided with a drainage port.

3. The domain controller according to claim 2, wherein: The rubber pad includes a bottom wall, a left side wall, a right side wall, a front left baffle wall, a front right baffle wall, a rear left baffle wall and a rear right baffle wall; The bottom ends of the left side wall and the right side wall are connected to the left and right ends of the bottom wall respectively; the front left baffle is connected to the front end of the left side wall and the left end of the front end of the bottom wall respectively; the front right baffle is connected to the front end of the right side wall and the right end of the front end of the bottom wall respectively; the rear left baffle is connected to the rear end of the left side wall and the left end of the rear end of the bottom wall respectively; and the rear right baffle is connected to the rear end of the right side wall and the right end of the rear end of the bottom wall respectively; The heat dissipation fan is surrounded by the left side wall, the right side wall, the front left baffle wall, the front right baffle wall, the rear left baffle wall and the rear right baffle wall of the rubber pad.

4. The domain controller according to claim 3, wherein: The top wall of the upper shell is provided with a pair of vertical plates, and the pair of vertical plates are respectively adjacent to the left wall and the right wall of the recessed portion; the inner walls of the pair of vertical plates are respectively provided with guide grooves extending along the height direction; The outer surfaces of the left and right walls of the rubber pad are respectively provided with protrusions that match the corresponding guide grooves. Each protrusion is accommodated in the corresponding guide groove and can move in the guide groove along the height direction of the vertical plate.

5. The domain controller according to claim 4, characterized in that The inner walls of the pair of vertical plates are respectively provided with a pair of ribs extending along the height direction, and the gap between the pair of ribs constitutes the guide groove.

6. The domain controller according to claim 2, wherein: The drain port is opened at the edge of the bottom wall of the rubber pad.

7. The domain controller according to claim 1, wherein: A plurality of connection ports are installed on the edge of the PCBA circuit board, and a plurality of port openings are provided on the side of the upper shell for exposing the plurality of connection ports one by one. The top wall of the upper shell is also provided with an upwardly extending connection port water retaining wall, and the connection port water retaining wall is located directly above the plurality of connection ports.

8. The domain controller according to claim 1, wherein: The heat dissipation fin group includes a plurality of heat dissipation fins arranged at intervals, the plurality of heat dissipation fins extending along the longitudinal direction of the upper shell, and the heat dissipation fan and the fan connector opening are both arranged on one side of the longitudinal direction of the plurality of heat dissipation fins.

9. The domain controller according to claim 1, wherein: The first notch is formed at an edge of the PCBA circuit board.

10. The domain controller according to claim 1, wherein: The second notch is formed at the edge of the bottom plate.

Images