An aluminum backshell structure

Abstract

The utility model relates to the technical field of automobile parts, concretely is an aluminum bottom shell structure, including upper casing, middle casing and lower casing, the upper casing with the lower casing is set in the upper and lower both sides of middle casing through bolt, the upper part of upper casing is provided with the dust cover, the left and right sides of middle casing all are provided with fixed lug, the lower part of lower casing is provided with the heat dissipation spare for heat dissipation, this aluminum bottom shell structure, upper casing, middle casing, lower casing bolt connection become three -layer structure, pass to the layered design, reduce the shell processing difficulty, the heat absorption shell of lower casing lower part sets up in the core position of device internal component heat output big, the fin one and fin two in the heat absorption shell inside are the even heating structure, the fan rotates and absorbs the outside air through fin one and fin two, carries away the heat and realizes the cooling, the air deflector in the middle part of fin one can guide the air even flow, avoids the airflow uneven and leads to the heat dissipation not in time.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an aluminum base shell structure. Background Technology

[0002] The aluminum base structure is a housing component specifically designed for automotive HUD devices. It utilizes the lightweight, high strength, and excellent heat dissipation properties of aluminum alloy to achieve the functions of device installation, protection, and heat dissipation.

[0003] In the prior art, such as the light source heat dissipation structure for AR-HUD disclosed in CN212207853U, the light source module is mounted on an aluminum substrate. The heat generated by the light source module during operation is transferred to the outer casing through the aluminum substrate and dissipated through the heat sink and heat dissipation strip on the outer casing. The fan mounted on the outer casing can accelerate the airflow around the heat sink and heat dissipation strip to improve the heat dissipation efficiency.

[0004] This device uses a fan to increase the airflow speed inside the device to increase air convection around the heat dissipation structure, thereby improving the passive heat dissipation efficiency of the heat dissipation structure. However, due to the installation angle of the fan, air cannot be directly blown into the interior of the heat dissipation structure, which means that the heat dissipation efficiency of the heat dissipation structure is not maximized. At the same time, the filter structure under the fan will be blocked by dust and foreign objects after long-term use, which will prevent the fan from blowing out air and reduce the heat dissipation efficiency again. To address this, we propose an aluminum base shell structure. Utility Model Content

[0005] One of the technical problems this application aims to solve is that direct airflow into the heat dissipation structure leads to the device's heat dissipation efficiency not being maximized, and the filtration structure being blocked, resulting in reduced heat dissipation effect.

[0006] To solve the above-mentioned technical problems, this application provides an aluminum bottom shell structure, including an upper shell, a middle shell, and a lower shell. The upper shell and the lower shell are bolted to the upper and lower sides of the middle shell. The upper shell is provided with a dust cover, the middle shell is provided with fixing ears on both the left and right sides, and the lower shell is provided with a heat dissipation component for heat dissipation.

[0007] Preferably, the heat sink includes a heat-absorbing shell disposed at the lower heating position of the lower housing. The heat-absorbing shell is provided with a first fin, a fan, a second fin, and a sealing plate. The first fin and the second fin respectively abut against the upper and lower sides of the fan. The sealing plate is disposed at the front of the second fin. The front of the heat-absorbing shell is provided with a cleaning component for cleaning the first fin.

[0008] Preferably, a plurality of evenly distributed guide plates are provided in the middle of the first fin, and the shape of the guide plates is consistent with the upper edge of the first fin.

[0009] Preferably, a support plate is provided in the middle of the second fin.

[0010] Preferably, the cleaning component includes a cleaning rod slidably connected to the front of the heat-absorbing shell, the middle part of the cleaning rod abutting against the front of the first fin, and an electric push rod provided on the right side of the heat-absorbing shell, the upper end of the electric push rod being located on the right side of the cleaning rod.

[0011] Preferably, the rear side of the cleaning rod is serrated, allowing it to be inserted into the front gap of the fin.

[0012] Preferably, the front part of the upper housing is provided with two positioning plates, and the middle part of the positioning plates is provided with fixing holes. The front part of the middle housing is provided with two positioning blocks, and the positioning blocks are triangular.

[0013] This utility model has at least the following beneficial effects: 1. The aluminum base shell structure consists of an upper shell, a middle shell, and a lower shell connected by bolts to form a three-layer structure. The middle shell is equipped with fixing ears for installation, and the upper shell has a dust cover for dust protection. The layered design reduces the difficulty of shell processing.

[0014] 2. The heat-absorbing shell at the bottom of the lower housing is located in the core position of the internal components where heat generation is high. The fins 1 and fin 2 inside the heat-absorbing shell are heat-equalizing structures. When the fan rotates, it absorbs outside air and carries away heat through fins 1 and fin 2 to achieve cooling. The guide plate in the middle of fin 1 can guide the air to flow evenly and avoid uneven airflow that leads to untimely heat dissipation.

[0015] 3. The cleaning component at the front of the heat absorption shell, driven by an electric push rod, can remove foreign objects from the gaps between the fins, thereby preventing a reduction in airflow and thus improving the heat dissipation effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the lower shell structure of this utility model; Figure 3 This is a schematic diagram of the heat-absorbing shell structure of this utility model; Figure 4 This is a schematic diagram of the guide plate structure of this utility model; Figure 5 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0017] In the diagram: 1. Upper shell; 11. Dust cover; 12. Positioning plate; 13. Fixing hole; 2. Middle shell; 21. Fixing lug; 22. Positioning block; 3. Lower shell; 4. Heat sink; 41. Heat absorption shell; 42. Fin 1; 421. Air guide plate; 43. Sealing plate; 44. Fin 2; 441. Support plate; 45. Fan; 5. Cleaning component; 51. Cleaning rod; 52. Electric push rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1: Please refer to Figure 1-4 This utility model provides a technical solution: an aluminum bottom shell structure, including an upper shell 1, a middle shell 2 and a lower shell 3. The upper shell 1 and the lower shell 3 are bolted to the upper and lower sides of the middle shell 2. A dust cover 11 is provided on the upper part of the upper shell 1. Fixing ears 21 are provided on both the left and right sides of the middle shell 2. A heat dissipation component 4 for heat dissipation is provided on the lower part of the lower shell 3. The upper shell 1, the middle shell 2, and the lower shell 3 together constitute the outer shell of the device. The three-layer structure can effectively reduce the processing difficulty of the outer shell. The fixing ear 21 can provide structural support for fixing the outer shell inside the car. The dust cover 11 covers the upper part of the upper shell 1 and can prevent external dust from entering the interior of the upper shell 1.

[0020] Furthermore, the heat sink 4 includes a heat-absorbing shell 41 disposed at the lower heating position of the lower housing 3. The heat-absorbing shell 41 is provided with a first fin 42, a fan 45, a second fin 44 and a sealing plate 43. The first fin 42 and the second fin 44 respectively abut against the upper and lower sides of the fan 45. The sealing plate 43 is disposed at the front of the second fin 44. The front of the heat-absorbing shell 41 is provided with a cleaning component 5 for cleaning the first fin 42. The heat-absorbing shell 41 is fixedly installed at the lower part of the lower shell 3. This is the core position where the internal components of the device work, and the heat generation is the greatest at this location. By placing the heat-absorbing shell 41 at this location, heat can be absorbed to the maximum extent. Fin 1 42 and fin 2 44 are heat-equalizing structures, which can evenly distribute the heat absorbed by the heat-absorbing shell 41 in its internal grid structure. When the fan 45 rotates and absorbs outside air, it can simultaneously carry away its heat and reduce the temperature as the air passes through fin 1 42 and fin 2 44.

[0021] Furthermore, a plurality of evenly distributed guide plates 421 are provided in the middle of the fin 42, and the shape of the guide plates 421 is consistent with the upper edge of the fin 42.

[0022] Furthermore, a support plate 441 is provided in the middle of the second fin 44; The deflector plate 421 can guide the air entering the heat-absorbing shell 41 to flow evenly, preventing the air from mainly passing through the front of the first fin 42 after entering the heat-absorbing shell 41, and the airflow being small at the rear of the first fin 42, resulting in uneven airflow and inability to quickly remove the heat from the first fin 42. The support plate 441 is used to support the internal spacing of the second fin 44 and to prevent the internal structure of the second fin 44 from resonating during ventilation.

[0023] Furthermore, the cleaning component 5 includes a cleaning rod 51 slidably connected to the front of the heat-absorbing shell 41, the middle part of the cleaning rod 51 abutting against the front of the fin 42, and an electric push rod 52 is provided on the right side of the heat-absorbing shell 41, with the upper end of the electric push rod 52 located on the right side of the cleaning rod 51.

[0024] Furthermore, the rear side of the cleaning rod 51 is serrated, allowing it to be inserted into the front gap of the fin 42; The serrated structure of the cleaning rod 51 can be inserted into the front of the fin 42 to a certain extent, thereby pushing out filamentous foreign objects from the gaps in the fin 42. The electric push rod 52 can be used to push the cleaning rod 51 up and down, and its coverage area is all the space in front of the fin 42.

[0025] Example 2: Please refer to Figure 5 Based on Embodiment 1, this utility model provides another technical solution: two positioning plates 12 are provided at the front of the upper shell 1, and a fixing hole 13 is provided in the middle of the positioning plate 12; two positioning blocks 22 are provided at the front of the middle shell 2, and the positioning blocks 22 are right-angled triangles with the inclined surface facing upward. The positioning plate 12 can be inserted into the upper side of the middle housing 2 when the upper housing 1 is placed in the upper part of the middle housing 2. The positioning block 22 can be slidably inserted into the interior of the fixing hole 13. The right-angled side of the positioning block 22 can prevent the positioning plate 12 from moving upward. The inclined surface of the positioning block 22 can assist the positioning block 22 in being inserted into the interior of the fixing hole 13. Thus, it can play a preliminary positioning function when the upper housing 1 and the middle housing 2 are connected to each other.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An aluminum bottom shell structure, comprising an upper shell (1), a middle shell (2), and a lower shell (3), characterized in that: The upper shell (1) and the lower shell (3) are bolted to the upper and lower sides of the middle shell (2). The upper shell (1) is provided with a dust cover (11), the middle shell (2) is provided with fixing ears (21) on both the left and right sides, and the lower shell (3) is provided with a heat dissipation component (4) for heat dissipation.

2. The aluminum bottom shell structure according to claim 1, characterized in that: The heat sink (4) includes a heat-absorbing shell (41) located at the lower heating position of the lower housing (3). The heat-absorbing shell (41) is provided with a fin (42), a fan (45), a fin (44), and a sealing plate (43). The fin (42) and the fin (44) abut against the upper and lower sides of the fan (45), respectively. The sealing plate (43) is located at the front of the fin (44). The front of the heat-absorbing shell (41) is provided with a cleaning component (5) for cleaning the fin (42).

3. The aluminum bottom shell structure according to claim 2, characterized in that: The middle part of the fin (42) is provided with a plurality of evenly distributed guide plates (421), the shape of which is consistent with the upper edge of the fin (42).

4. The aluminum bottom shell structure according to claim 2, characterized in that: A support plate (441) is provided in the middle of the second fin (44).

5. The aluminum bottom shell structure according to claim 2, characterized in that: The cleaning component (5) includes a cleaning rod (51) slidably connected to the front of the heat-absorbing shell (41), the middle part of the cleaning rod (51) abutting against the front of the fin (42), and an electric push rod (52) is provided on the right side of the heat-absorbing shell (41), with the upper end of the electric push rod (52) located on the right side of the cleaning rod (51).

6. The aluminum bottom shell structure according to claim 5, characterized in that: The rear side of the cleaning rod (51) is serrated and can be inserted into the front gap of the fin (42).

7. The aluminum bottom shell structure according to claim 1, characterized in that: The upper housing (1) is provided with two positioning plates (12) at the front, and a fixing hole (13) is provided in the middle of the positioning plate (12). The middle housing (2) is provided with two positioning blocks (22) at the front, and the positioning blocks (22) are triangular.

Images