A chassis
By incorporating air ducts and vents within the chassis, combined with adjustable hinge rods and movable sleeve structures, airflow is optimized, solving the problem of insufficient heat dissipation efficiency in vehicle-mounted terminal chassis and achieving efficient heat dissipation and stable airflow.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING LIANGYA TECH CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-26
AI Technical Summary
The heat dissipation efficiency and effectiveness of existing vehicle-mounted terminal chassis are limited, especially the heat conduction effect of the metal casing is insufficient.
Air ducts and vents are set up inside the chassis. Airflow channels are formed by cooling fans and multiple vents. Combined with adjustable hinge rods and movable sleeve structures, airflow is optimized to improve heat dissipation. Heat conduction efficiency is improved by increasing the contact surface.
It significantly improves the heat dissipation efficiency and effectiveness of the chassis, and can adjust the airflow pattern as needed, reduce the additional power supply burden, and ensure stable airflow and efficient heat dissipation.
Smart Images

Figure CN224290280U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chassis technology, and specifically to a chassis. Background Technology
[0002] Vehicle-mounted terminals are electronic devices installed in vehicles, serving as the core hub for data communication, information processing, and control between the vehicle and external systems. Currently, the casing of vehicle-mounted terminals is mostly made of metal, such as aluminum alloy, with an uneven structure on the outer surface to increase the contact area between the casing and the outside air, thereby improving the speed and efficiency of heat dissipation from the internal electronic components. However, this type of casing relies on conductive heat dissipation, and its heat dissipation efficiency and effect remain limited. Utility Model Content
[0003] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0004] A chassis includes a chassis body, wherein partitions are installed on both the left and right sides of the chassis body, and ventilation openings are provided on both the left and right sides of the rear side of the chassis body. A cooling fan is installed between the partitions near the rear side of the chassis body and the corresponding positions of the chassis body, and the side of the cooling fan abuts against the partitions and chassis body at the corresponding positions. Multiple ventilation openings at equal intervals are provided on the partitions in front of the cooling fan.
[0005] Furthermore, the top of the enclosure has an opening, at which a top cover is installed. A display and control panel and an interface panel are respectively installed on the front and rear sides of the enclosure. An air duct is formed between the partition and the corresponding enclosure and top cover. Air flows along the air duct and eventually enters and exits through the heat dissipation vents. By utilizing the multiple ventilation vents, the airflow can move air in all parts of the enclosure as much as possible, thereby improving the overall heat dissipation effect.
[0006] Furthermore, support frames are fixed to the left and right sides of the bottom of the enclosure, and multiple equally spaced grooves are formed on the left and right sides of the enclosure and the top of the top cover. The grooves increase the contact surface between the enclosure and the outside air, thereby improving the efficiency of heat conduction and heat dissipation.
[0007] Furthermore, a baffle is installed between the top of the cooling fan and the top of the housing. This ensures that only the fan position is open, while other positions are blocked, guaranteeing that the air is driven by the cooling fan to form a stable airflow.
[0008] Furthermore, top plates are fixed to the left and right sides of the bottom of the enclosure, and also to the front and rear positions. A bottom plate is installed directly below the top plates. A vertical edge is fixed to the side of the top plate facing the outside of the enclosure. A front sliding groove is formed on the side of the vertical edge away from the enclosure. Multiple equally spaced latches are formed on the vertical edge corresponding to the front sliding groove. A fixed seat is fixed to the top of the bottom plate near the rear. A pin is fixed to the top of the fixed seat on the side facing the vertical edge. A movable sleeve is installed in the latch. A hinge rod is installed between the movable sleeve and the pin. Through holes are formed on the hinge rod corresponding to the pin and the movable sleeve. The pin and the movable sleeve are rotated and fixed by engaging with the through holes at the corresponding positions. The different positions of the movable sleeve on the vertical edge, combined with the hinge rod, can drive the entire enclosure to rise or fall accordingly.
[0009] Furthermore, a rear sliding groove is formed on the vertical edge facing the housing, and the front sliding groove is connected to the rear sliding groove. The width of the front sliding groove is smaller than the width of the rear sliding groove. The rear sliding groove facilitates the adjustment and locking of the movable sleeve.
[0010] Furthermore, a fixing plate is fixed to the rear side of the through hole corresponding to the position of the movable sleeve on the hinge rod, and a fixing sleeve is fixed to the front side of the fixing plate corresponding to the position of the through hole. The fixing sleeve extends into the through hole at the corresponding position, and the front end of the fixing sleeve extends into the movable sleeve to form a movable sleeve connection. The sleeve connection between the fixing sleeve and the movable sleeve facilitates the fixing and movement of the fixing sleeve.
[0011] Furthermore, a spring is installed inside the movable sleeve, with both ends of the spring fixed to the movable sleeve and the fixed sleeve at corresponding positions. A protrusion passing through the front sliding groove is fixed to the front end of the movable sleeve. The spring allows the movable sleeve to self-reset after movement, facilitating use.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. This utility model provides air ducts on opposite sides of the enclosure, with the two sides used for air intake and exhaust respectively. Combined with the setting of multiple ventilation openings, the airflow entering and exiting the enclosure can carry a larger range of air within the enclosure, thereby reducing the possibility of poor airflow and improving the overall heat dissipation effect and efficiency of the enclosure.
[0014] 2. The air duct of this utility model is formed by partitions, a box and a top cover. The air duct can be at the same height as the box. While controlling the space occupied by the air duct, it can provide a sufficient flow surface to ensure the flow of air.
[0015] 3. In this utility model, the top plate and the bottom plate are connected by the cooperation of the hinge rod and the movable sleeve. The posture of the box can be adjusted by adjusting the position of the movable sleeve on the vertical side according to the installation and use needs, so as to facilitate use.
[0016] 4. In this utility model, the front and rear sliding grooves and the cooperation between the fixed sleeve and the movable sleeve ensure that the hinge rod can stably connect the top plate and the bottom plate, while allowing the movable sleeve to move conveniently and reliably, thus facilitating the adjustment operation. Attached Figure Description
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is a bottom view of the present invention;
[0019] Figure 3 This is a schematic diagram of the partition plate arrangement in this utility model;
[0020] Figure 4 This is a schematic diagram of the cooling fan configuration in this utility model;
[0021] Figure 5 This is a schematic diagram of the top plate and bottom plate configuration in this utility model;
[0022] Figure 6 This is a schematic diagram of the hinge rod arrangement in this utility model;
[0023] Figure 7 This is a schematic diagram of the movable sleeve in this utility model.
[0024] Reference numerals: 1. Cabinet; 2. Top cover; 3. Support frame; 4. Display and control panel; 5. Interface panel; 6. Heat dissipation vent; 7. Partition; 8. Ventilation vent; 9. Cooling fan; 10. Block; 11. Groove; 12. Bottom plate; 13. Top plate; 14. Vertical edge; 15. Rear sliding groove; 16. Front sliding groove; 17. Bayonet; 18. Hinge rod; 19. Fixing seat; 20. Pin; 21. Movable sleeve; 22. Fixing sleeve; 23. Spring; 24. Protrusion; 25. Fixing plate; 26. Through hole; 27. Air duct. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0026] This application provides a chassis, mainly addressing the problems of limited heat dissipation efficiency and effectiveness due to heat conduction from the chassis shell, and provides the following technical solution, which will be discussed below. Figures 1-7 Please provide a detailed explanation:
[0027] A chassis includes a chassis 1 with an opening at the top, where a top cover 2 is installed. A display control panel 4 and an interface panel 5 are respectively installed on the front and rear sides of the chassis 1. The interface panel 5 includes a video input port: 1 HDMI interface; a video output port: 1 HDMI interface (supporting no-power loopback output and decoding output); a video transmission port: 1 network interface; a power interface: 1 DC power interface; and a power input: rated DC 24V, supporting a DC 20V~31V power input range. Support brackets 3 are fixed on the left and right sides of the bottom of the chassis 1. Ventilation vents 6 are opened on the left and right sides of the rear of the chassis 1. Multiple equally spaced grooves 11 are opened on the left and right sides of the chassis 1 and the top of the top cover 2.
[0028] Inside the housing 1, partitions 7 are installed on both the left and right sides. The partitions 7 form air ducts 27 between the housing 1 and the corresponding parts of the housing 1 and the top cover 2. A cooling fan 9 is installed between the partition 7 near the rear of the housing 1 and the corresponding part of the housing 1. The side of the cooling fan 9 abuts against the partition 7 and the housing 1. A baffle 10 is installed between the top of the cooling fan 9 and the top of the housing 1. Multiple vents 8 with equal spacing are opened on the partition 7 in front of the cooling fan 9. The cooling fans 9 on the left and right sides of the housing 1 are configured with air intake on the left and air exhaust on the right.
[0029] When in use, the electrical components inside the enclosure 1 generate heat. After the heat is absorbed by the enclosure 1 and the top cover 2, it can be conducted to the outside through the enclosure 1 and the top cover 2 for heat dissipation. When the heat is not high, the cooling fan 9 does not need to be turned on. When the heat is high and the enclosure 1 and the top cover 2 cannot dissipate heat in time, the cooling fan 9 on the left side can be turned on. The cooling fan 9 draws in cooler air from the outside through the heat dissipation port 6 and blows it into the air duct 27. The air then diffuses into the enclosure 1 through the ventilation port 8 and exchanges heat with the air inside the enclosure 1.
[0030] The cooling fans 9 on the left and right sides of the enclosure 1 can be turned on one or all of them depending on the heat generation. Turning on only one can reduce the additional power supply burden while meeting the heat dissipation requirements. Turning on all of them can greatly improve the heat dissipation efficiency. When only the intake fan is turned on, the air enters the enclosure 1 from the left side for heat exchange, and then is blown out through the ventilation port 8, air duct 27 and heat dissipation port 6 on the right side for heat dissipation. When all of them are turned on, the cooling fan 9 on the right side is the exhaust fan, which will increase the negative pressure suction of the air duct 27 on the right side, forming a stronger airflow speed in the enclosure 1, thereby further improving the heat dissipation effect.
[0031] In some embodiments, a top plate 13 is fixed on both the left and right sides of the bottom of the box 1 and at the front and rear positions. A bottom plate 12 is installed directly below the top plate 13. A vertical edge 14 is fixed on the side of the top plate 13 facing the outside of the box 1. A rear sliding groove 15 is opened on the side of the vertical edge 14 facing the box 1, and a front sliding groove 16 is opened on the side of the vertical edge 14 away from the box 1. The front sliding groove 16 communicates with the rear sliding groove 15, and the width of the front sliding groove 16 is smaller than the width of the rear sliding groove 15.
[0032] Multiple equally spaced slots 17 are provided on the vertical edge 14 corresponding to the position of the front sliding groove 16. A fixed seat 19 is fixed on the rear side of the top of the base plate 12. A pin 20 is fixed on the top of the fixed seat 19 facing the vertical edge 14. A movable sleeve 21 passing through the rear sliding groove 15 is installed in the slot 17. A hinge rod 18 is installed between the movable sleeve 21 and the pin 20. A through hole 26 is provided on the hinge rod 18 corresponding to the position of the pin 20 and the movable sleeve 21. The pin 20 and the movable sleeve 21 are sleeved and rotated to be fixed with the through hole 26 at the corresponding position.
[0033] The support frame 3 is fixed. After the box 1 is installed and fixed, the position and state of the box 1 cannot be adjusted. After the top plate 13 and the bottom plate 12 are installed, they can be locked in different positions of the slot 17 by using the movable sleeve 21. Thus, by using the hinge relationship of the hinge rod 18, the box 1 can be adjusted to tilt forward or backward. It can be adjusted according to the installation position and usage needs. When adjusting, first move the movable sleeve 21 horizontally out of the slot 17 to break away from the position limit of the slot 17, and then move it in the rear sliding groove 15. Adjust it according to the position of different slots 17. Then, the moved movable sleeve 21 is pressed into the current slot 17. The movable sleeve 21 is restricted by the slot 17 and cannot move, thus forming a locking effect.
[0034] In some embodiments, a fixing plate 25 is fixed to the rear side of the through hole 26 corresponding to the position of the movable sleeve 21 on the hinge rod 18, and a fixing sleeve 22 is fixed to the front side of the fixing plate 25 corresponding to the position of the through hole 26. The fixing sleeve 22 extends into the through hole 26 at the corresponding position, and the front end of the fixing sleeve 22 extends into the movable sleeve 21 to form a movable sleeve connection.
[0035] When adjusting the movable sleeve 21, the fixed sleeve 22 is pressed towards the hinge rod 18 to allow it to move along the fixed sleeve 22 and disengage from the latch 17. This eliminates the need to move the hinge rod 18, ensuring a reliable connection of the hinge rod 18.
[0036] In some embodiments, a spring 23 is installed inside the movable sleeve 21, and the two ends of the spring 23 are fixed to the movable sleeve 21 and the fixed sleeve 22 at corresponding positions. A protrusion 24 passing through the front sliding groove 16 is fixed to the front end of the movable sleeve 21.
[0037] Spring 23 can be used for the self-resetting extension of movable sleeve 21. During adjustment, continuous pressing from the position of protrusion 24 causes spring 23 to retract, and movable sleeve 21 can move in the rear sliding groove 15. When protrusion 24 is released and movable sleeve 21 corresponds to any position latch 17, movable sleeve 21 can automatically enter the latch 17 at that position to form a lock.
[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A cabinet comprising a housing (1), characterized in that The box (1) is equipped with partitions (7) on both the left and right sides. The box (1) is equipped with heat dissipation vents (6) on both the left and right sides of the rear side. A cooling fan (9) is installed between the partition (7) near the rear side of the box (1) and the corresponding box (1). The side of the cooling fan (9) abuts against the partition (7) and the box (1) at the corresponding position. Multiple ventilation vents (8) with equal spacing are opened on the partition (7) in front of the cooling fan (9).
2. The chassis according to claim 1, characterized in that, The top of the enclosure (1) is open, and a top cover (2) is installed at the opening. A display and control panel (4) and an interface panel (5) are installed on the front and rear sides of the enclosure (1), respectively. An air duct (27) is formed between the partition (7) and the enclosure (1) and the top cover (2) at the corresponding positions.
3. A chassis according to claim 1, characterized in that, The bottom left and right sides of the box (1) are fixed with support frames (3), and multiple grooves (11) with equal spacing are opened on the left and right sides of the box (1) and the top of the top cover (2).
4. A chassis according to claim 2, characterized in that, A stop (10) is installed between the top of the cooling fan (9) and the top of the housing (1).
5. A chassis according to claim 1, characterized in that, Top plates (13) are fixed to the left and right sides of the bottom of the box (1) and to the front and rear positions. A bottom plate (12) is installed directly below the top plate (13). A vertical edge (14) is fixed to the side of the top plate (13) facing the outside of the box (1). A front sliding groove (16) is opened on the side of the vertical edge (14) away from the box (1). Multiple equally spaced slots (17) are opened on the vertical edge (14) corresponding to the position of the front sliding groove (16). The bottom plate (12) is fixed to the rear side of the top. A fixed base (19) is provided. A pin (20) is fixed on the top of the fixed base (19) facing the vertical side (14). A movable sleeve (21) is installed in the bayonet (17). A hinge rod (18) is installed between the movable sleeve (21) and the pin (20). A through hole (26) is provided on the hinge rod (18) at the position corresponding to the pin (20) and the movable sleeve (21). The pin (20) and the movable sleeve (21) are sleeved and rotated to be fixed with the through hole (26) at the corresponding position.
6. A chassis according to claim 5, characterized in that, A rear sliding groove (15) is provided on the side of the vertical edge (14) facing the box (1), and a front sliding groove (16) is connected to the rear sliding groove (15). The width of the front sliding groove (16) is smaller than the width of the rear sliding groove (15).
7. A chassis according to claim 6, characterized in that, A fixing plate (25) is fixed on the rear side of the through hole (26) corresponding to the position of the movable sleeve (21) on the hinge rod (18). A fixing sleeve (22) is fixed on the front side of the fixing plate (25) corresponding to the position of the through hole (26). The fixing sleeve (22) extends into the through hole (26) at the corresponding position, and the front end of the fixing sleeve (22) extends into the movable sleeve (21) to form a movable sleeve connection.
8. A chassis according to claim 7, characterized in that, A spring (23) is installed inside the movable sleeve (21). The two ends of the spring (23) are fixed to the movable sleeve (21) and the fixed sleeve (22) at the corresponding positions. A protrusion (24) is fixed at the front end of the movable sleeve (21) through the front sliding groove (16).