Vehicle navigation host's air duct type three-dimensional heat dissipation grille structure

Abstract

The utility model discloses a kind of air duct type three-dimensional heat dissipation grating structures of vehicle navigation mainframe, involve vehicle navigation technical field, and wherein, the air duct type three-dimensional heat dissipation grating structure of vehicle navigation mainframe includes: housing, is equipped with mounting cavity, the mounting cavity is used to accommodate host computer, the side portion of the housing is equipped with air inlet, the air inlet is communicated with the mounting cavity;Vapor chamber, is located at the back of the housing, the vapor chamber is thermally connected with the host computer, the vapor chamber is equipped with mounting port, the mounting port is communicated with the mounting cavity;Fan, is located at the mounting port, the fan is used to drive airflow to flow through air inlet, mounting cavity, host computer, mounting port and vapor chamber in turn.The technical scheme provided by the utility model improves the heat dissipation effect and performance of vehicle navigation.

Description

Technical Field

[0001] This utility model relates to the field of vehicle navigation technology, and in particular to a three-dimensional heat dissipation grille structure for a vehicle navigation host. Background Technology

[0002] Existing vehicle navigation systems have relatively closed structures and simple heat dissipation methods, mainly relying on natural heat dissipation or simple fan cooling. This is inefficient, has limited effect, and causes uneven heat dissipation, affecting the normal operation of components and system reliability. It is also difficult to adapt to different working environments and load conditions, thus limiting the high performance and high reliability requirements of vehicle navigation systems. Utility Model Content

[0003] The main purpose of this utility model is to propose a three-dimensional heat dissipation grille structure for a vehicle navigation host, which aims to improve the heat dissipation effect and performance of the vehicle navigation system.

[0004] To achieve the above objectives, this utility model proposes a three-dimensional heat dissipation grille structure for a vehicle navigation device host, comprising:

[0005] The housing has a mounting cavity for accommodating the main unit, and an air inlet is provided on the side of the housing, which communicates with the mounting cavity.

[0006] A heat spreader is disposed on the back side of the housing. The heat spreader is thermally connected to the main unit. The heat spreader is provided with a mounting port, which communicates with the mounting cavity.

[0007] A fan is provided at the mounting port, and the fan is used to drive airflow to flow sequentially through the air inlet, the mounting cavity, the main unit, the mounting port and the heat exchange plate.

[0008] In one embodiment, the heat spreader is made of metal, and the air duct-type three-dimensional heat dissipation grille structure of the vehicle navigation host also includes a heat-conducting component, with the two sides of the heat-conducting component respectively abutting against the host and the heat spreader.

[0009] In one embodiment, a heat dissipation groove is recessed on the side of the heat dissipation plate away from the housing. The heat dissipation groove extends along the length direction of the housing and is spaced out in multiple places along the width direction of the housing.

[0010] In one embodiment, the air duct type three-dimensional heat dissipation grille structure of the vehicle navigation host also includes a back shell, which is fastened to the heat dissipation plate, and the back shell and the heat dissipation plate together form an air cavity, which has air outlets on both sides along the length direction of the shell.

[0011] In one embodiment, the back shell and the heat spreader are integrally formed.

[0012] In one embodiment, the air duct type three-dimensional heat dissipation grille structure of the vehicle navigation host further includes a flow guiding structure, which is disposed in the air cavity to guide the airflow away from the fan.

[0013] In one embodiment, the flow guiding structure is configured as a plurality of flow guiding plates, which are arranged around the fan and extend radially.

[0014] In one embodiment, the air outlet and the air inlet are respectively located on different sides of the housing.

[0015] In the technical solution of this utility model, the heat spreader can quickly and evenly distribute heat, avoiding the occurrence of local overheating. In addition, the airflow generated by the fan can flow through the host and the heat spreader in sequence and dissipate heat from both, which is equivalent to increasing the contact area between the airflow and the heat source. Through the combination of the heat spreader and the fan, the heat generated by the host can be quickly and evenly conducted and dissipated. Compared with traditional natural heat dissipation or simple fan heat dissipation, the heat dissipation efficiency is higher and the effect is better. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the air duct-type three-dimensional heat dissipation grille structure of the vehicle navigation host provided by this utility model;

[0018] Figure 2 A cross-sectional schematic diagram of the air duct type three-dimensional heat dissipation grille structure of the vehicle navigation host provided by this utility model;

[0019] Figure 3 Another structural schematic diagram of the air duct type three-dimensional heat dissipation grille structure of the vehicle navigation host provided by this utility model;

[0020] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0021] Explanation of icon numbers:

[0022] 10. Main unit; 100. Housing; 110. Mounting cavity; 120. Air inlet; 130. Air outlet; 200. Heat spreader; 210. Heat dissipation groove; 300. Fan; 400. Heat conduction component; 500. Back cover; 600. Air cavity; 700. Deflector plate.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] 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 scope of protection of the present utility model.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] To improve the heat dissipation effect and performance of vehicle navigation, this technical solution proposes a duct-type three-dimensional heat dissipation grille structure for the main unit 10 of the vehicle navigation device, including: a housing 100, with a mounting cavity 110 for accommodating the main unit 10, and an air inlet 120 on the side of the housing 100, which communicates with the mounting cavity 110; a heat dissipation plate 200, located on the back side of the housing 100, which is thermally connected to the main unit 10, and has an installation opening that communicates with the mounting cavity 110; and a fan 300, located at the installation opening, which drives the airflow to flow sequentially through the air inlet 120, the mounting cavity 110, the main unit 10, the installation opening, and the heat dissipation plate 200.

[0028] Specifically, such as Figures 1 to 4 In the technical solution of this utility model, the housing 100 serves as the outer shell of the entire heat dissipation structure. An installation cavity 110 is provided inside the housing 100, housing the main components of the vehicle navigation system, such as the screen and motherboard, and providing sufficient space for heat dissipation. An air inlet 120 is provided on the side of the housing 100. Additionally, a heat spreader 200 is provided on the back side of the housing 100. The heat spreader 200 can be made of a material with high thermal conductivity, such as metal. The heat spreader 200 can be thermally connected to the main unit 10 by extending into the installation cavity 110 through a thermally conductive material such as a copper sheet, ensuring that the heat generated by the main unit 10 can be quickly and evenly transferred to the heat spreader 200. In addition, an installation port is provided on the heat spreader 200, which is connected to the installation cavity 110. The fan 300 is installed at the installation port of the heat spreader 200. When the fan 300 is running, the airflow generated flows through the air inlet 120, the installation cavity 110, the main unit 10 and the heat spreader 200 in sequence according to the pre-designed path. In this process, the main unit 10 can not only be cooled by the airflow, but also the heat can be further conducted and dissipated through the heat spreader 200. In addition, the airflow can also flow through the heat spreader 200 and dissipate heat on the heat spreader 200. This is equivalent to increasing the contact area between the airflow and the heat-carrying components, which is conducive to improving the heat dissipation effect and heat dissipation efficiency.

[0029] like Figure 2 In one embodiment of this utility model, the heat spreader 200 is made of metal, and the air duct-type three-dimensional heat dissipation grille structure of the vehicle navigation host 10 also includes a heat-conducting component 400. The two sides of the heat-conducting component 400 abut against the host 10 and the heat spreader 200, respectively. The heat spreader 200 can be made of copper sheet or aluminum alloy, and the heat-conducting component 400 can be a thermally conductive silicone pad, etc. One side of the heat-conducting component 400 is in contact with the heat-generating part of the host 10, and the other side is in contact with the heat spreader 200. The heat-conducting component 400 can fill the gap between the host 10 and the heat spreader 200, reduce the interface thermal resistance, and ensure that heat can be transferred quickly and efficiently from the host 10 to the heat spreader 200, thereby accelerating heat dissipation.

[0030] like Figure 4 In one embodiment of this utility model, a heat dissipation groove 210 is recessed on the side of the heat spreader 200 away from the housing 100. The heat dissipation groove 210 extends along the length direction of the housing 100 and is spaced apart along the width direction of the housing 100. In this embodiment, the heat dissipation groove 210 can be integrally machined onto the heat spreader 200 by means of turning or other methods. The heat dissipation groove 210 can extend along the width direction of the housing 100 and can be densely distributed on the heat spreader 200. This increases the surface area of ​​the side of the heat spreader 200 away from the housing 100, so that the airflow delivered by the fan 300 has a larger contact area with the heat spreader 200, thereby improving the heat absorption effect of the airflow and improving the heat dissipation effect on the heat spreader 200 and the main unit 10.

[0031] like Figures 1 to 4 In one embodiment of the present invention, the air duct type three-dimensional heat dissipation grille structure of the vehicle navigation host 10 further includes a back shell 500, which is fastened to the heat dissipation plate 200, and the back shell 500 and the heat dissipation plate 200 together form an air cavity 600, which has air outlets 130 on both sides along the length direction of the shell 100. The back shell 500 can be made of high-strength, lightweight materials. The air cavity 600 is formed by the back shell 500 and the heat spreader 200. Air outlets 130 are provided on both sides of the air cavity 600 along the length of the shell 100. Air enters from the air inlet 120 on the side of the shell 100, flows sequentially through the mounting cavity 110, the main unit 10, and the heat spreader 200, and finally exits through the air outlets 130 on both sides of the air cavity 600. The air cavity 600 can guide the airflow, ensuring that the airflow completely flows through the entire heat spreader 200 before exiting through the air outlets 130, thus extending the contact time between the airflow and the heat spreader 200 and improving heat dissipation efficiency. In one embodiment of this utility model, the back shell 500 and the heat spreader 200 are integrally formed, which simplifies the structural complexity and processing technology of the air duct-type three-dimensional heat dissipation grille structure. In addition, the heat from the heat spreader 200 can also be transferred to the back shell 500, and the airflow can also transfer heat with the back shell 500, further improving the heat dissipation effect.

[0032] In one embodiment of this utility model, the air duct type three-dimensional heat dissipation grille structure of the vehicle navigation host 10 also includes a flow guiding structure. The flow guiding structure is disposed within the air cavity 600 to guide the airflow away from the fan 300. The flow guiding structure can be a structure such as fins or protrusions disposed on the inner wall of the air cavity 600. The airflow output from the fan 300 can flow away from the fan 300 under the guidance of the flow guiding structure and flow towards the air outlets 130 on both sides. The arrangement of the flow guiding structure can ensure that the airflow can flow smoothly out of the air cavity 600, which helps to reduce turbulence, ensures that the airflow speed and temperature distribution within the entire air cavity 600 is uniform, and makes it easier for the heat carried by the airflow to dissipate, thus ensuring the heat dissipation effect. In addition, by guiding the airflow to flow smoothly, reducing airflow impact and turbulence, the noise generated by the fan 300 during operation is also reduced.

[0033] like Figure 3 In one embodiment of this utility model, the airflow guiding structure is configured as multiple airflow guide plates 700, which are arranged around the fan 300 and extend radially. Within the air cavity 600, the airflow guiding structure consists of multiple airflow guide plates 700, which are arranged perpendicular to the heat spreader 200. These airflow guide plates 700 extend radially outwards from the fan 300 as the center. This arrangement effectively guides the airflow from the fan 300 to flow evenly in all directions within the air cavity 600, making the airflow path within the air cavity 600 smoother and more uniform. It also ensures sufficient contact between the airflow and the heat spreader 200 and the back cover 500, improving heat dissipation efficiency.

[0034] like Figure 4 In one embodiment of this utility model, the air outlet 130 and the air inlet 120 are respectively disposed on different sides of the housing 100. This arrangement ensures that the airflow discharged from the air outlet 130 can be fully mixed with the outside air, and also ensures that the air inlet 120 can draw in airflow from the outside air, ensuring that the temperature of the airflow is low enough and ensuring the heat dissipation effect.

[0035] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A three-dimensional heat dissipation grille structure for a vehicle navigation device host, characterized in that, include: The housing has a mounting cavity for accommodating the main unit, and an air inlet is provided on the side of the housing, which communicates with the mounting cavity. A heat spreader is disposed on the back side of the housing. The heat spreader is thermally connected to the main unit. The heat spreader is provided with a mounting port, which communicates with the mounting cavity. A fan is provided at the mounting port, and the fan is used to drive airflow to flow sequentially through the air inlet, the mounting cavity, the main unit, the mounting port and the heat exchange plate.

2. The air duct type three-dimensional heat dissipation grille structure of the vehicle navigation host as described in claim 1, characterized in that, The heat spreader is made of metal, and the air duct-type three-dimensional heat dissipation grille structure of the vehicle navigation host also includes a heat-conducting component, with the two sides of the heat-conducting component abutting against the host and the heat spreader respectively.

3. The air duct-type three-dimensional heat dissipation grille structure of the vehicle navigation host as described in claim 2, characterized in that, The heat dissipation plate has a recessed heat dissipation groove on the side opposite to the housing. The heat dissipation groove extends along the length of the housing and is spaced out in multiple places along the width of the housing.

4. The air duct-type three-dimensional heat dissipation grille structure of the vehicle navigation host as described in claim 3, characterized in that, The air duct type three-dimensional heat dissipation grille structure of the vehicle navigation host also includes a back shell, which is fastened to the heat dissipation plate, and the back shell and the heat dissipation plate together form an air cavity, which has air outlets on both sides along the length direction of the shell.

5. The air duct-type three-dimensional heat dissipation grille structure of the vehicle navigation host as described in claim 4, characterized in that, The back shell and the heat spreader are integrally formed.

6. The air duct-type three-dimensional heat dissipation grille structure of the vehicle navigation host as described in claim 4, characterized in that, The air duct type three-dimensional heat dissipation grille structure of the vehicle navigation host also includes a flow guiding structure, which is located in the air cavity to guide the airflow away from the fan.

7. The air duct-type three-dimensional heat dissipation grille structure of the vehicle navigation host as described in claim 6, characterized in that, The flow guiding structure is configured as multiple flow guiding plates, which are arranged around the fan and extend radially.

8. The air duct-type three-dimensional heat dissipation grille structure of the vehicle navigation host as described in claim 4, characterized in that, The air outlet and the air inlet are respectively located on different sides of the housing.

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