Vehicle-mounted navigator with heat dissipation function

Abstract

The utility model discloses a vehicle-mounted navigator with a heat dissipation function, which comprises a casing, a circuit mainboard is mounted in the middle of the casing, and a display screen is mounted on the casing and positioned on the front side of the circuit mainboard. According to the technical scheme of the utility model, the back part of the circuit mainboard is provided with a heat dissipation mechanism which is composed of the heat dissipation plate, the heat dissipation holes, the heat dissipation ribs and the heat dissipation module, and the protection cover plate is provided with the holes for the heat dissipation plate to pass through in a reserved manner. According to the vehicle-mounted navigator, the heat dissipation module, the heat dissipation holes, the heat dissipation ribs and the heat dissipation plate are arranged, so that the heat inside the vehicle-mounted navigator can be quickly conducted and dissipated by means of the heat dissipation module, the heat dissipation holes, the heat dissipation ribs and the heat dissipation plate when the vehicle-mounted navigator is used, the temperature of the internal environment of the vehicle-mounted navigator is prevented from rising, and the jamming phenomenon is avoided; according to the vehicle-mounted navigation device, light in the external environment can be shielded by means of the sun shade, it is ensured that pictures on the display screen can be clearly observed by a driver, and the using effect of the vehicle-mounted navigation device is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle navigation, specifically to a vehicle navigation system with heat dissipation function. Background Technology

[0002] In-vehicle navigation systems (also known as in-vehicle GPS navigation systems) are common intelligent devices in modern vehicles. They provide real-time map information, route planning, traffic conditions, destination navigation, and other functions to help drivers drive more conveniently and safely. The types, functions, and technologies of in-vehicle navigation systems are constantly evolving, and they have now become a standard feature in many vehicles.

[0003] With the increasing intelligence of automobiles, in-vehicle navigation systems have become one of the standard configurations of modern vehicles. However, in high-temperature environments, in-vehicle navigation devices are prone to overheating due to the heat generated by their internal electronic components, which can affect their operating efficiency or even cause device failure.

[0004] Existing car navigation systems primarily dissipate heat through ventilation holes pre-drilled on the casing. While these holes allow for heat dissipation, the process is slow and insufficient for sustained normal operation in high-temperature environments. This leads to lag and inefficiency due to overheating. Furthermore, the lack of effective light shielding on the display screen makes it difficult for drivers to see the image clearly in bright sunlight, further impacting usability. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a vehicle navigation system with heat dissipation function that can quickly conduct and dissipate heat inside the vehicle navigation system, while also blocking light from the external environment so that the screen can be clearly observed by the driver.

[0006] This utility model is achieved through the following technical solution: This utility model proposes a vehicle navigation system with heat dissipation function, including a housing. A circuit board is installed in the middle of the housing. A display screen is installed on the housing in front of the circuit board. A heat dissipation mechanism is installed in the housing in front of the circuit board. The heat dissipation mechanism includes a heat sink, heat dissipation holes, heat dissipation ribs, and a heat dissipation module. A protective cover is also installed on the back of the housing outside the heat sink. A sunshade is also added to the upper front of the housing. The heat dissipation module is installed on the side of the heat sink facing the circuit board. The heat dissipation holes are opened on the heat sink. The heat dissipation ribs are located on the side of the heat sink facing away from the circuit board.

[0007] Furthermore, the heat dissipation module has a heat-conducting surface that is attached to the circuit board and a layer of thermally conductive silicone sheet is coated between the heat dissipation module and the circuit board.

[0008] Furthermore, the heat dissipation holes penetrate the heat dissipation plate, and the heat dissipation plate is located in the hollow structure of the protective cover.

[0009] Furthermore, the heat dissipation ribs are located on the outside of the protective cover, and both the heat dissipation ribs and the heat dissipation plate are heat dissipation metal sheets.

[0010] Furthermore, a fixing component is installed between the sunshade and the housing. The fixing component includes a limiting edge one, a limiting edge two, and fixing holes, which are located at the lower part of the two side walls of the sunshade.

[0011] Furthermore, the limiting edge is formed on the upper side of the back of the sunshade, and the limiting edge cooperates with the groove reserved in the middle of the upper part of the protective cover.

[0012] Furthermore, there are two limiting edges, and the two limiting edges are symmetrically arranged on both sides of the back of the sunshade.

[0013] Furthermore, a rotary joint that is directly connected to the heat dissipation mechanism is also installed on the back of the protective cover, and a support is installed at the bottom of the rotary joint.

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] This invention utilizes a heat dissipation mechanism consisting of a heat sink, heat dissipation holes, heat dissipation ribs, and a heat dissipation module installed on the back of the circuit board. Holes for the heat sink to pass through are pre-drilled in the protective cover. This allows the car navigation system to rapidly dissipate internal heat through the heat dissipation module, heat dissipation holes, heat dissipation ribs, and heat sink, preventing the internal temperature from rising and thus avoiding lag. Furthermore, by adding a sunshade to the upper part of the display screen on the front of the car navigation system, external light is blocked, ensuring the driver can clearly see the image on the screen and improving the usability of the car navigation system. Attached Figure Description

[0016] Figure 1 This is a rear view of a vehicle navigation system with heat dissipation function as described in this utility model;

[0017] Figure 2 This is a rear view of a vehicle navigation system with heat dissipation function as described in this utility model after the protective cover has been removed.

[0018] Figure 3This utility model describes a vehicle navigation system with heat dissipation function. Figure 2 Enlarged view of the structure at point A in the middle;

[0019] Figure 4 This is a front view of a vehicle navigation system with heat dissipation function as described in this utility model.

[0020] The annotations in the attached figures are explained as follows:

[0021] 1. Support; 2. Display screen; 3. Housing; 4. Sunshade; 5. Fixing components; 51. Limiting edge one; 52. Limiting edge two; 53. Fixing hole; 6. Protective cover plate; 7. Rotary joint; 8. Heat dissipation mechanism; 81. Heat dissipation plate; 82. Heat dissipation hole; 83. Heat dissipation ribs; 84. Heat dissipation module; 9. Circuit board. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0023] like Figure 1 , Figure 2 and Figure 4 As shown, a vehicle navigation system with heat dissipation function in this embodiment includes a housing 3. A circuit board 9 is installed in the middle of the housing 3. A display screen 2 is installed on the housing 3 in front of the circuit board 9. A heat dissipation mechanism 8 is installed in the housing 3 in the rear of the circuit board 9. The heat dissipation mechanism 8 includes a heat dissipation plate 81, heat dissipation holes 82, heat dissipation ribs 83 and heat dissipation module 84. A protective cover plate 6 is also installed on the back of the housing 3 outside the heat dissipation plate 81. A sunshade 4 is also installed on the upper front of the housing 3. The heat dissipation module 84 is installed on the side of the heat dissipation plate 81 facing the circuit board 9. The heat dissipation holes 82 are opened on the heat dissipation plate 81. The heat dissipation ribs 83 are located on the side of the heat dissipation plate 81 away from the circuit board 9.

[0024] This invention provides a vehicle navigation system with heat dissipation capabilities, enabling rapid heat dissipation from the vehicle's internal components while simultaneously blocking external light, ensuring clear visibility of the display screen 2 for the driver. This addresses the shortcomings of existing vehicle navigation systems that primarily rely on pre-drilled ventilation holes 82 on the casing for heat dissipation. While these holes effectively dissipate heat, the slow heat dissipation rate is insufficient for sustained normal operation in high-temperature environments, leading to lag and low efficiency. Furthermore, the lack of effective light blocking at the display screen 2 in existing systems makes the system susceptible to glare from external light. In cases where the driver cannot clearly see the image on the in-vehicle navigation system, thus affecting its usability, the present invention addresses this problem by employing the following approach: To prevent overheating of the main circuit board 9 inside the housing 3 during navigation operation, a heat dissipation module 84 continuously guides the heat generated by the main circuit board 9. The heat is then dissipated to the external environment via a heat dissipation plate 81 and heat dissipation ribs 83, ensuring a constant ambient temperature at the main circuit board 9 within the housing 3. This prevents the internal temperature of the in-vehicle navigation system from rising, thus avoiding lag. Furthermore, when the external light is glaring, a sunshade 4 can block the light, ensuring the image on the display screen 2 can be clearly seen by the driver.

[0025] like Figures 1-3 As shown, the heat dissipation module 84 has its heat-conducting surface attached to the circuit board 9 and is coated with a layer of thermally conductive silicone sheet between it and the circuit board 9.

[0026] As one implementation method, the heat dissipation module 84, made of aluminum alloy, can guide and dissipate the heat generated by the circuit board 9, thereby reducing the temperature of the circuit board 9 inside the housing 3 and ensuring that the vehicle navigation system can continue to work normally under high internal ambient temperature conditions.

[0027] like Figures 1-3 As shown, the heat dissipation hole 82 penetrates the heat dissipation plate 81, and the heat dissipation plate 81 is located in the hollow structure on the protective cover plate 6;

[0028] As one implementation method, the hollow structure design of the protective cover 6 allows the heat sink 81, heat dissipation holes 82, and heat dissipation ribs 83 to be directly connected to the external environment during use, thereby ensuring efficient heat dissipation inside the vehicle navigation system.

[0029] like Figures 1-3As shown, the heat dissipation rib 83 is located on the outside of the protective cover plate 6, and both the heat dissipation rib 83 and the heat dissipation plate 81 are heat dissipation metal sheets;

[0030] As one implementation method, the heat dissipation ribs 83 and the heat dissipation plate 81 mainly achieve the rapid conduction and dissipation of heat on the heat dissipation module 84 through heat transfer.

[0031] like Figures 1-3 As shown, a fixing component 5 is also installed between the sunshade 4 and the housing 3. The fixing component 5 includes a limiting edge 51, a limiting edge 52 and a fixing hole 53. The fixing hole 53 is located at the lower part of the two side walls of the sunshade 4.

[0032] As one implementation method, the fixing component 5 is mainly used to ensure that the sunshade 4 is reliably installed on the housing 3, so that the sunshade 4 can block the light in the external environment.

[0033] like Figures 1-3 As shown, the limiting edge 51 is formed on the upper side of the back of the sunshade 4, and the limiting edge 51 matches the groove reserved in the middle of the upper end of the protective cover 6.

[0034] As one implementation method, the limiting edge 51 can fit into the recessed position at the upper center of the protective cover 6, thereby achieving the initial limiting of the sunshade 4 during installation.

[0035] like Figures 1-2 As shown, there are two limiting edges 52, and the two limiting edges 52 are symmetrically arranged on both sides of the back of the sunshade 4.

[0036] As one implementation, the limiting edge 52 can cooperate with the back edge of the housing 3 to ensure that the sunshade 4 can be stably inserted into the housing 3.

[0037] like Figures 1-2 As shown, a rotary joint 7 that is directly connected to the heat dissipation mechanism 8 is also installed on the back of the protective cover 6, and a support 1 is installed at the bottom of the rotary joint 7.

[0038] As one implementation method, the rotary joint 7 and the support 1 are both existing technologies, mainly used to enable flexible adjustment of the angle of the vehicle navigation system after installation.

[0039] The specific implementation process of this embodiment is as follows: When in use, the support 1 is first installed in the corresponding position inside the car, and the display screen 2 is adjusted to a suitable angle with the help of the rotary joint 7. Then, the car navigation can be put into use simply by connecting the car navigation to the car control system. During use, in order to avoid the temperature of the circuit board 9 inside the housing 3 from getting too high, the heat generated by the circuit board 9 is continuously guided by the heat dissipation module 84. The heat dissipation plate 81 and the heat dissipation ribs 83 are used to dissipate the heat guided by the heat dissipation module 84 to the external environment, thereby ensuring that the ambient temperature of the circuit board 9 inside the housing 3 is constant, avoiding the internal ambient temperature of the car navigation from rising and avoiding lag. When the light in the external environment is too glaring, the sunshade 4 can be used to block the light in the external environment, ensuring that the picture on the display screen 2 can be clearly observed by the driver, thus improving the use effect of the car navigation.

[0040] 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 car navigation with heat dissipation function, characterized in that: Including the casing (3), the circuit mainboard (9) is installed in the middle of the casing (3), the display screen (2) is installed on the casing (3) and located in the front side of the circuit mainboard (9), the heat dissipation mechanism (8) is installed in the casing (3) and located in the back side of the circuit mainboard (9), the heat dissipation mechanism (8) includes the heat dissipation plate (81), the heat dissipation hole (82), the heat dissipation rib (83) and the heat dissipation module (84), the protective cover plate (6) is also installed on the back of the casing (3) and located at the outside of the heat dissipation plate (81), the sunshade (4) is also installed on the front side of the casing (3) and located in the upper part, the heat dissipation module (84) is installed on the side of the heat dissipation plate (81) and faces the circuit mainboard (9), the heat dissipation hole (82) is opened on the heat dissipation plate (81), and the heat dissipation rib (83) is located on the side of the heat dissipation plate (81) and faces away from the circuit mainboard (9).

2. The vehicle navigation with heat dissipation function as claimed in claim 1, wherein: The heat dissipation module (84) is an aluminum alloy heat sink, and the heat conduction surface of the heat dissipation module (84) is attached to the circuit mainboard (9) and coated with a layer of heat-conducting silicone rubber sheet between the heat conduction surface and the circuit mainboard (9).

3. The vehicle navigation with heat dissipation function as claimed in claim 1, wherein: The heat dissipation hole (82) penetrates the heat dissipation plate (81), and the heat dissipation plate (81) is located at the hollow structure on the protective cover plate (6).

4. The vehicle navigation with heat dissipation function as claimed in claim 1, wherein: The heat dissipation rib (83) is located outside the protective cover plate (6), and the heat dissipation rib (83) and the heat dissipation plate (81) are both heat dissipation metal sheets.

5. The vehicle navigation with heat dissipation function as claimed in claim 1, wherein: The fixing assembly (5) is also installed between the sunshade (4) and the casing (3), the fixing assembly (5) includes the limiting edge one (51), the limiting edge two (52) and the fixing hole (53), and the fixing hole (53) is located in the lower part of the two side walls of the sunshade (4).

6. The car navigation with heat dissipation function according to claim 5, wherein: The limiting edge one (51) is formed on the upper side of the back of the sunshade (4), and the limiting edge one (51) is matched with the groove reserved in the middle of the upper end of the protective cover plate (6).

7. The vehicle navigation with heat dissipation function as claimed in claim 5, wherein: The limiting edge two (52) has two, and the two limiting edge two (52) are symmetrically arranged on the back of the sunshade (4).

8. The car navigation with heat dissipation function as claimed in claim 1, wherein: The protective cover plate (6) back also is installed with the rotary joint (7) that directly links with the heat dissipation mechanism (8), and the rotary joint (7) bottom end is installed with the support (1).

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