Vehicle-mounted host and vehicle

Abstract

The invention provides a vehicle-mounted host machine and a vehicle. The vehicle-mounted host machine comprises a shell; the control panel is arranged in the shell; the frameless fan is mounted at the top of the shell and is used for supplying air to the surface of the shell; the plurality of heat dissipation teeth are connected to the top of the shell and are arranged at intervals in the circumferential direction of the frameless fan; wherein the multiple heat dissipation teeth located on the two opposite sides of the frameless fan in the length direction of the shell form a first heat dissipation tooth set, and the heat dissipation teeth located in the first heat dissipation tooth set are all arranged in the length direction; the multiple heat dissipation teeth located on the two opposite sides of the frameless fan in the width direction of the shell form a second heat dissipation tooth set, and the heat dissipation teeth located in the second heat dissipation tooth set are arranged in a radial mode from the frameless fan to the edge of the shell. The vehicle-mounted host and the vehicle are simple in structure, convenient to manufacture, high in heat dissipation efficiency, long in service life and good in user experience.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle-mounted host and a vehicle. Background Art

[0002] The in-vehicle host is the core part of the in-vehicle audio and video system, and its main function is to play audio sources. During the operation of the in-vehicle host, the chip inside it generates a lot of heat; and as users pursue the functions of the in-vehicle host, the chip power inside the in-vehicle host is gradually increasing, and the heat dissipation requirements for the in-vehicle host are also getting higher and higher. The existing in-vehicle host structure has low heat dissipation efficiency and high fan noise, and the user experience is poor, so there is an urgent need for an in-vehicle host with efficient heat dissipation. Summary of the invention

[0003] In view of this, the purpose of this application is to propose a vehicle-mounted host and a vehicle to solve the related problems mentioned in the background technology.

[0004] Based on the above-mentioned purpose, the first aspect of the present application provides a vehicle-mounted host, including: a shell; a control panel arranged in the shell; a frameless fan installed on the top of the shell, for supplying air to the surface of the shell; a plurality of heat dissipation teeth connected to the top of the shell and arranged at circumferential intervals around the frameless fan; wherein, the plurality of heat dissipation teeth located on opposite sides of the frameless fan along the length direction of the shell constitute a first heat dissipation tooth group, and the heat dissipation teeth in the first heat dissipation tooth group are all arranged toward the length direction; the plurality of heat dissipation teeth located on opposite sides of the frameless fan along the width direction of the shell constitute a second heat dissipation tooth group, and the heat dissipation teeth in the second heat dissipation tooth group are radially arranged from the frameless fan to the edge of the shell.

[0005] Furthermore, at least one end of a portion of the heat dissipation teeth close to the frameless fan is a curved surface structure.

[0006] Furthermore, the distance between the bottom surface of the frameless fan and the bottom end of the heat dissipation teeth is greater than or equal to 5 mm; the height of the heat dissipation teeth is greater than or equal to 25 mm, and the height of the frameless fan is lower than the height of the heat dissipation teeth.

[0007] Furthermore, the shell includes: an upper cover, the top surface of which is connected to the heat dissipation teeth; a lower cover, which cooperates with the upper cover to form a accommodating cavity with an opening at one end, and the control board is placed in the accommodating cavity; a back cover, which is arranged at the opening of the accommodating cavity; the upper cover, the lower cover and the back cover are all conductive structures.

[0008] Furthermore, the upper cover is provided with first baffles on two opposite sides along the length direction, a second baffle is provided on the side of the upper cover away from the back cover, a third baffle is connected between the two first baffles, the third baffle is spaced apart from the side of the upper cover close to the back cover, and the first baffle, the second baffle and the third baffle form a closed baffle wall; the top surface of the control panel is provided with a conductive structure that abuts against the bottom of the closed baffle wall, and the conductive structure includes a plurality of first conductive protrusions arranged at intervals.

[0009] Furthermore, the first conductive protrusions are tin dots, and a distance between two adjacent first conductive protrusions is greater than or equal to 0.6 mm and less than or equal to 5 mm.

[0010] Furthermore, a plurality of components are connected to the top surface of the control board, and the components are located in the closed retaining wall. The bottom surface of the upper cover is provided with bosses corresponding to the components, and thermal conductive adhesive is connected between the bosses and the components.

[0011] Furthermore, the lower cover is respectively connected with first flanges on two opposite sides along the length direction, a second flange is provided on the side of the lower cover away from the back cover, and a third flange is provided on the side of the lower cover close to the back cover; a limiting groove is formed at the bottom of the first baffle plate and the second baffle plate, the first flange and the second flange are both abutted against the side wall of the limiting groove, and the third flange is abutted against the side wall of the control board; a plurality of second conductive protrusions are arranged at intervals on the side of the first flange and the second flange close to the limiting groove.

[0012] Furthermore, the second conductive protrusion and the first flange or the second flange are an integrally formed structure, and a distance between two adjacent second conductive protrusions is 5 mm to 6 mm.

[0013] Furthermore, the back cover is connected to the edge of the upper cover, the first baffle, the second baffle and the third flange respectively.

[0014] A second aspect of the present application provides a vehicle, including a vehicle body, a bracket being provided on the vehicle body, and the vehicle-mounted host as described in the first aspect above being provided on the bracket.

[0015] As can be seen from the above, the vehicle-mounted host and vehicle provided by the present application, the vehicle-mounted host includes: a housing; a control panel, arranged in the housing; a frameless fan, installed on the top of the housing, for supplying air to the surface of the housing; a plurality of heat dissipation teeth, connected to the top of the housing, arranged at intervals around the circumference of the frameless fan; wherein, a plurality of heat dissipation teeth located on opposite sides of the frameless fan along the length direction of the housing constitute a first heat dissipation tooth group, and the heat dissipation teeth in the first heat dissipation tooth group are arranged toward the length direction; a plurality of heat dissipation teeth located on opposite sides of the frameless fan along the width direction of the housing constitute a second heat dissipation tooth group, and the heat dissipation teeth in the second heat dissipation tooth group are arranged radially from the frameless fan to the edge of the housing. Through the cooperation of the frameless fan and the first heat dissipation tooth group and the second heat dissipation tooth group, the wind blown out of the frameless fan can be guided to be evenly distributed between the heat dissipation teeth, reducing the flow resistance of the gas, increasing the gas flow speed, and thereby improving the heat dissipation efficiency of the entire housing, and can also effectively reduce the return air, reduce the noise, and improve the user experience. The vehicle-mounted host and vehicle have simple structure, convenient manufacturing, high heat dissipation efficiency, long service life, and good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the appearance structure of a vehicle-mounted host in an embodiment of the present application;

[0018] Figure 2 for Figure 1 Schematic diagram of the explosion structure of the vehicle-mounted host;

[0019] Figure 3 This is a schematic diagram of the flow field simulation of a framed fan;

[0020] Figure 4 This is a schematic diagram of the flow field simulation of a frameless fan;

[0021] Figure 5 A top view of the frameless fan and the heat dissipation teeth in the embodiment of the present application;

[0022] Figure 6 Schematic diagram of gas flow at the end of the heat dissipation tooth in the embodiment of the present application;

[0023] Figure 7 This is a bottom view of the upper cover in the embodiment of the present application;

[0024] Figure 8A top view of a control panel in an embodiment of the present application;

[0025] Fig. 9 Schematic diagram of the structure of the first conductive protrusion in the embodiment of the present application

[0026] Fig.10 This is a schematic diagram of the cooperation between the upper cover and the control panel in the embodiment of the present application;

[0027] Fig.11 This is a schematic diagram of the cooperation between the upper cover and the lower cover in the embodiment of the present application;

[0028] Fig.12 Schematic diagram of the structure of the second conductive protrusion in the embodiment of the present application.

[0029] Figure markings: 1. shell; 2. control board; 2-1. components; 2-2. connector; 2-3. conductive structure; 2-4. first conductive protrusion; 3. frameless fan; 3-1. bracket; 4. heat dissipation teeth; 4-1. arc surface structure; 5. upper cover; 5-1. first baffle; 5-2. second baffle; 5-3. third baffle; 5-4. boss; 5-5. limit groove; 6. lower cover; 6-1. first flange; 6-2. second flange; 6-3. third flange; 6-4. second conductive protrusion; 6-5. reinforcing rib; 7. back cover; 7-1. avoidance hole. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0031] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be understood by people with ordinary skills in the field to which the present disclosure belongs. "First", "second" and similar words used in the present disclosure do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0032] The in-vehicle host is the core part of the in-vehicle audio and video system, and its main function is to play audio sources. During the operation of the in-vehicle host, the chip inside it generates a lot of heat; and as users pursue the functions of the in-vehicle host, the chip power inside the in-vehicle host is gradually increasing, and the heat dissipation requirements for the in-vehicle host are also getting higher and higher. The existing in-vehicle host structure has low heat dissipation efficiency and high fan noise, and the user experience is poor, so there is an urgent need for an in-vehicle host with efficient heat dissipation.

[0033] In addition, with the popularization of electric vehicle intelligent driving technology, higher standards are put forward for the protection of electromagnetic compatibility (EMC) of vehicle-mounted hosts. EMC refers to the fact that an electronic device neither interferes with other devices nor is affected by other devices. It is one of the most important indicators of product quality. Because the shielding body absorbs energy, reflects energy and offsets energy from external interference electromagnetic waves such as wires, cables, components, circuits or systems and internal electromagnetic waves, the shielding body has the function of reducing interference. When the frequency of the interfering electromagnetic field is high, the eddy current generated in the metal material with low resistivity is used to form an offset effect on external electromagnetic waves, thereby achieving the shielding effect. When the frequency of the interfering electromagnetic wave is low, a material with high magnetic permeability should be used to limit the magnetic lines of force inside the shielding body to prevent it from spreading to the shielded space. In some cases, if good shielding effects are required for both high-frequency and low-frequency electromagnetic fields, different metal materials can also be used to form a multi-layer shielding body.

[0034] Below, through specific embodiments and in combination with the attached Figure 1 To Attachment Fig.12 The technical solution of this application is further described in detail.

[0035] In some embodiments of the present application, a vehicle-mounted host is provided, such as Figure 1 and Figure 5 As shown, it includes: a shell 1; a control board 2, which is arranged in the shell 1; a frameless fan 3, installed on the top of the shell 1, and used to supply air to the surface of the shell 1; a plurality of heat dissipation teeth 4, which are connected to the top of the shell 1 and are arranged at circumferential intervals around the frameless fan 3; wherein, the plurality of heat dissipation teeth 4 located on opposite sides of the frameless fan 3 along the length direction of the shell 1 constitute a first heat dissipation tooth group, and the heat dissipation teeth 4 in the first heat dissipation tooth group are all arranged toward the length direction; the plurality of heat dissipation teeth 4 located on opposite sides of the frameless fan 3 along the width direction of the shell 1 constitute a second heat dissipation tooth group, and the heat dissipation teeth 4 in the second heat dissipation tooth group are radially arranged from the frameless fan 3 to the edge of the shell 1.

[0036] like Figure 1As shown, the vehicle-mounted host includes a shell 1, which is formed by stamping a copper plate or an aluminum plate, for example, without specific limitation, and has good thermal conductivity and magnetic conductivity. In the figure, the L direction is the length direction of the shell 1, and the W direction is the width direction of the shell 1.

[0037] like Figure 2 As shown, a control panel 2 is disposed inside the housing 1, which is used to realize communication between people and the vehicle, and between the vehicle and the outside world, and is the main heat-generating component of the vehicle-mounted host.

[0038] like Figure 5 As shown, a frameless fan 3 is installed on the top of the housing 1 to send air to the surface of the housing 1 for heat dissipation. Compared with a framed fan, the frameless fan 3 is selected because there is no outer frame to block it, the return air is less, the heat dissipation effect can be ensured, the noise is low, and the user experience is good. The frameless fan 3 can be installed on the housing 1 through the bracket 3-1 at the bottom, as shown in FIG. Figure 5 As shown, the bracket 3-1 can, for example, avoid setting bolt holes for the fan blades to facilitate installation.

[0039] On the periphery of the frameless fan 3, heat dissipation teeth 4 are arranged at intervals. The heat dissipation teeth 4 are, for example, metal fins, which are not specifically limited and are connected to the housing 1. A gas flow channel is formed between adjacent heat dissipation teeth 4. On the one hand, the gas flow can be guided to spread over the surface of the housing 1 to improve the heat dissipation effect. On the other hand, the heat dissipation area can be increased to further improve the heat dissipation effect. Figure 5 As shown, the heat dissipation teeth 4 on the left and right sides of the frameless fan 3 are arranged in a straight line, and the heat dissipation teeth 4 on the upper and lower sides of the frameless fan 3 are arranged in a radial pattern. According to the test, this arrangement can make the airflow evenly distributed between the heat dissipation teeth 4, and the heat dissipation efficiency is high. The heat dissipation teeth 4 in the first heat dissipation tooth group can be a linear structure, and the heat dissipation teeth 4 in the second heat dissipation tooth group can be an arc structure, which further reduces the flow resistance and improves the heat dissipation effect.

[0040] like Figure 3 As shown, it is a schematic diagram of the flow field simulation results using a framed fan. In the figure, after the cooling air from the framed fan blows to the heat dissipation teeth 4, the fan return air is serious, there are many windless areas on the heat dissipation teeth 4, and the gas is unevenly distributed between the heat dissipation teeth 4, resulting in low heat dissipation efficiency of the entire system.

[0041] like Figure 5 As shown, it is a schematic diagram of the flow field simulation results of the frameless fan 3, and the heat dissipation teeth 4 are arranged tangentially to the gas flow direction at the fan blades as a whole, 5 groups of straight heat dissipation teeth 4 are used on the left and right sides of the frameless fan 3, and 22 groups of arc-shaped heat dissipation teeth 4 are used on the upper and lower sides of the frameless fan 3, and are symmetrically distributed on the left and right. It can be seen that after the cooling air of the frameless fan 3 is blown to the heat dissipation teeth 4, the fan return air is less, the gas is evenly distributed between the heat dissipation teeth 4, and the heat dissipation efficiency of the whole system is higher.

[0042] By cooperating with the frameless fan 3 and the first heat dissipation tooth group and the second heat dissipation tooth group, the wind blown out by the frameless fan 3 can be guided to be evenly distributed between the heat dissipation teeth 4, thereby reducing the flow resistance of the gas, increasing the gas flow speed, and thus improving the heat dissipation efficiency of the entire shell 1. It can also effectively reduce return air, reduce noise, and improve user experience.

[0043] The vehicle-mounted host has a simple structure, is easy to manufacture, has high heat dissipation efficiency, a long service life, and a good user experience. The vehicle-mounted host is suitable for products with a total power consumption of less than 80W. If fixed installation is required, the installation point can be set on the housing 1 by yourself.

[0044] In some embodiments, Figure 5 As shown, at least part of the heat dissipation teeth 4 close to one end of the frameless fan 3 is a curved surface structure 4 - 1.

[0045] like Figure 5 As shown, the end cross-section of the heat dissipation teeth 4 distributed around the frameless fan 3 is designed to be elliptical, such as Figure 6 As shown, the elliptical end can significantly reduce the gas flow resistance, optimize the distribution of gas between the heat dissipation teeth 4, increase the flow speed, and thus improve the heat dissipation efficiency of the entire system.

[0046] In some embodiments, the distance between the bottom surface of the frameless fan 3 and the bottom end of the heat dissipation tooth 4 is greater than or equal to 5 mm; the height of the heat dissipation tooth 4 is greater than or equal to 25 mm, and the height of the frameless fan 3 is lower than the height of the heat dissipation tooth 4.

[0047] The distance between the bottom surface of the frameless fan 3 and the bottom end of the heat dissipation tooth 4 is, for example, 5mm, 6mm, 7mm or 8mm, etc., without specific limitation, so that the airflow can be fully distributed on the surface of the shell 1 to avoid being too close to the shell 1 and causing excessive wind speed, resulting in large return air and noise.

[0048] The height of the heat dissipation teeth 4 is set to, for example, 25mm, 26mm, 27mm or 28mm, etc., without specific limitation, which can provide a larger heat dissipation area to ensure the heat dissipation effect; the height of the frameless fan 3 is lower than the height of the heat dissipation teeth 4, for example, the specifications of the frameless fan 3 are 50mm*50mm*15mm, plus the gap between the frameless fan 3 and the shell 1, the heat dissipation teeth are about 5mm higher than the frameless fan, which can protect the frameless fan 3.

[0049] In some embodiments, Figure 2 As shown, the shell 1 includes: an upper cover 5, the top surface of which is connected to the heat dissipation teeth 4; a lower cover 6, which cooperates with the upper cover 5 to form a accommodating cavity with an opening at one end, and the control board 2 is placed in the accommodating cavity; a back cover 7, which is arranged at the opening of the accommodating cavity; the upper cover 5, the lower cover 6 and the back cover 7 are all conductive structures 2-3.

[0050] like Figure 2 As shown, the shell 1 includes an upper cover 5, a lower cover 6 and a back cover 7, all of which can be made of conductive metal, or a conductive interlayer can be provided, or a conductive coating can be applied, etc. The upper cover 5, the lower cover 6 and the back cover 7 form a closed structure as a whole, which plays an electromagnetic shielding role.

[0051] In some embodiments, Figure 7 , Figure 8 and Fig.10 As shown, the upper cover 5 is provided with first baffles 5-1 on two opposite sides along the length direction, a second baffle 5-2 is provided on the side of the upper cover 5 away from the back cover 7, a third baffle 5-3 is connected between the two first baffles 5-1, the third baffle 5-3 is spaced apart from the side of the upper cover 5 close to the back cover 7, and the first baffle 5-1, the second baffle 5-2 and the third baffle 5-3 form a closed baffle wall; the top surface of the control panel 2 is provided with a conductive structure 2-3 that abuts against the bottom of the closed baffle wall, and the conductive structure 2-3 includes a plurality of first conductive protrusions 2-4 arranged at intervals.

[0052] like Figure 7 As shown, the outer periphery of the upper cover 5 is provided with a first baffle 5-1 and a second baffle 5-2, and a third baffle 5-3 is provided between the two first baffles 5-1. The material of the baffle is, for example, a conductive material. The first baffle 5-1, the second baffle 5-2 and the third baffle 5-3 form a closed baffle wall. Fig.10 As shown, the closed retaining wall can cooperate with the control panel 2 to form a closed space, thereby playing an electromagnetic shielding role.

[0053] The third baffle 5-3 is spaced apart from the edge of the upper cover 5, which can provide an escape space for the connector 2-2 on the control board 2. The components 2-1 on the control board 2 are wrapped in a closed baffle wall, which can improve electromagnetic compatibility.

[0054] like Figure 8 As shown, a conductive structure 2 - 3 corresponding to the first baffle 5 - 1 , the second baffle 5 - 2 and the third baffle 5 - 3 is provided on the control board 2 , so as to further improve the connection reliability between the control board 2 and the upper cover 5 .

[0055] like Fig. 9As shown, the conductive structure 2-3 includes a plurality of first conductive protrusions 2-4 arranged at intervals, and one or more circles of first conductive protrusions 2-4 may be provided, without specific limitation. In actual production, the flatness of the control board 2 or the baffle may be relatively poor. If a continuous conductive structure 2-3 is used, there may be a large range of gaps when it cooperates with the closed retaining wall, and the electromagnetic waves cannot be effectively blocked. By setting the conductive structure 2-3 as a discontinuous structure, on the one hand, the first conductive protrusion 2-4 is deformed when it abuts against the closed retaining wall, and the gap can provide a space for the deformation, so that the conductive structure 2-3 can be in close contact with the closed retaining wall, thereby ensuring the electromagnetic shielding effect; on the other hand, it also provides a heat dissipation space, so that the gas can flow inside and outside the closed retaining wall, further improving the heat dissipation effect.

[0056] In some embodiments, Fig. 9 As shown, the first conductive protrusions 2 - 4 are tin dots, and the distance between two adjacent first conductive protrusions 2 - 4 is greater than or equal to 0.6 mm and less than or equal to 5 mm.

[0057] The first conductive protrusion 2-4 is, for example, a tin dot, which has good toughness and is easy to deform when in contact with the closed retaining wall, ensuring a tight electrical connection, thereby ensuring an electromagnetic shielding effect. The tin dot material has a wide source, low cost, and good electrical connection with the control board 2.

[0058] The bottom diameter of the tin dot is, for example, 0.5 mm, and the height is, for example, 0.6 mm. The spacing between two adjacent first conductive protrusions 2-4 is greater than or equal to 0.6 mm and less than or equal to 5 mm, for example, the spacing is 1 mm, 2 mm, 3 mm or 4 mm, etc., and is not specifically limited. On the one hand, it is avoided that the spacing is too small, and the first conductive protrusions 2-4 are difficult to make. On the other hand, it is avoided that the spacing is too large, and the electromagnetic wave blocking effect is poor. Usually, the spacing should be less than 1 / 5 of the highest frequency wavelength. Under this condition, the spacing is reduced as much as possible to ensure the electromagnetic shielding effect.

[0059] In some embodiments, Figure 7 and Figure 8 As shown, the top surface of the control board 2 is connected to a plurality of components 2-1, and the components 2-1 are located in the closed retaining wall. The bottom surface of the upper cover 5 is provided with bosses 5-4 corresponding to the components 2-1, and thermal conductive adhesive is connected between the bosses 5-4 and the components 2-1.

[0060] like Figure 8 As shown, the control board 2 is provided with a plurality of components 2-1, such as a memory, a timer, an A / D conversion module, an I / O port and a serial communication module, etc. Figure 7As shown, a boss 5-4 is provided on the upper cover 5 corresponding to the component 2-1. The boss 5-4 is integrally formed with the upper cover 5, for example, and can be made of materials with high thermal conductivity such as aluminum plates or copper plates. Thermal conductive glue is filled between the boss 5-4 and the component 2-1, so that the heat generated by the component 2-1 during operation can be promptly conducted to the boss 5-4, and then dissipated to the environment through the heat dissipation teeth 4.

[0061] In some embodiments, Figure 2 and Fig.11 As shown, the lower cover 6 is respectively connected with a first flange 6-1 on two opposite sides along the length direction, a second flange 6-2 is provided on the side of the lower cover 6 away from the back cover 7, and a third flange 6-3 is provided on the side of the lower cover 6 close to the back cover 7; a limiting groove 5-5 is formed at the bottom of the first baffle 5-1 and the second baffle 5-2, the first flange 6-1 and the second flange 6-2 are both abutted against the side wall of the limiting groove 5-5, and the third flange 6-3 is abutted against the side wall of the control board 2; a plurality of second conductive protrusions 6-4 arranged at intervals are provided on the side of the first flange 6-1 and the second flange 6-2 close to the limiting groove 5-5.

[0062] like Figure 2 As shown, a limiting groove 5-5 is provided at the bottom of the upper cover 5, and a flange is provided at the edge of the lower cover 6. The flange and the limiting groove 5-5 are both made of conductive materials, wherein the first flange 6-1 and the second flange 6-2 are against the limiting groove 5-5, and the third flange 6-3 is against the control board 2, forming a closed space as a whole, which can surround the back of the control board 2 and further ensure the electromagnetic shielding effect.

[0063] like Figure 2 and Fig.12 As shown, second conductive protrusions 6-4 arranged at intervals are provided on the outside of the first flange 6-1 and the second flange 6-2, which have similar functions to the first conductive protrusions 2-4. On the one hand, the flange can be in close contact with the limit groove 5-5 to ensure the electromagnetic shielding effect, and on the other hand, a heat dissipation space is provided so that the gas can flow inside and outside the flange to further improve the heat dissipation effect. The third flange 6-3 and the control board 2 can be set flush to ensure space utilization. A reinforcing rib 6-5 can also be set in the middle of the lower cover 6 to improve the structural stability and prevent the closed space from collapsing.

[0064] In some embodiments, Fig.12 As shown, the second conductive protrusion 6 - 4 and the first flange 6 - 1 or the second flange 6 - 2 are an integrally formed structure, and the distance between two adjacent second conductive protrusions 6 - 4 is 5 mm to 6 mm.

[0065] The second conductive protrusion 6-4 and the first flange 6-1 or the second flange 6-2 are an integrally formed structure, for example, formed by stamping an aluminum plate or a copper plate, and are easy to manufacture; the bottom diameter of the second conductive protrusion 6-4 is, for example, 1.5 mm, and the spacing of the second conductive protrusion 6-4 is, for example, 5 mm, 5.5 mm or 6 mm, etc., without specific limitation. The spacing of the second conductive protrusion 6-4 is greater than the spacing of the first conductive protrusion 2-4. On the one hand, because the first conductive protrusion 2-4 is a tin point, the process of making a narrow gap is easy to achieve. On the other hand, because the lower cover 6 mainly performs electromagnetic shielding on the back of the control board 2, and the components 2-1 are usually not set on the back, the electromagnetic shielding requirements are relatively low. The second conductive protrusion 6-4 can be set with a relatively wider spacing to reduce costs and meet basic electromagnetic shielding requirements.

[0066] In some embodiments, Figure 2 As shown, the back cover 7 is respectively connected to the edge of the upper cover 5, the first baffle 5-1, the second baffle 5-2 and the third flange 6-3.

[0067] like Figure 2 As shown, the back cover 7 is respectively connected to the edge of the upper cover 5, the first baffle 5-1, the second baffle 5-2 and the third flange 6-3, which can also form a closed space to provide electromagnetic shielding for the entire control panel 2.

[0068] like Figure 2 As shown, the control board 2 is provided with a connector 2-2, and the connector 2-2 is, for example, a USB interface, an AUX interface, an RCA interface, an HDMI interface, an AV interface, an HDMI interface, a VGA interface or a Bluetooth interface, and the back cover 7 is provided with a corresponding avoidance hole 7-1, as shown in FIG. Fig.11 As shown, after the rear cover 7 is matched with the upper cover 5 and the lower cover 6, the connector 2-2 can pass through the avoidance hole 7-1 and connect with the outside world.

[0069] In some embodiments, the frameless fan 3 is bolted to the upper cover 5 through four mounting holes, the lower cover 6 and the control board 2 are fixed to the upper cover 5 through screws, and the rear cover 7 is fixed to the upper cover 5 through screws, wherein the connector 2-2 on the control board 2 is exposed through the avoidance hole 7-1 reserved on the rear cover 7. The vehicle-mounted host forms a total of three closed spaces, effectively blocking the propagation path of electromagnetic waves, avoiding the influence of electromagnetic waves on the signal transmission in the connector 2-2, and greatly improving the EMC protection capability.

[0070] In a second aspect of the present application, a vehicle is provided, including a vehicle body, a bracket is provided on the vehicle body, and a vehicle-mounted host as described in any of the above embodiments is provided on the bracket.

[0071] The bracket is, for example, a rubber bracket, etc., which is not specifically limited. The vehicle provided in this embodiment has a good heat dissipation effect of the on-board host and can meet the heat dissipation requirements of high-power chips.

[0072] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0073] In addition, when details are set forth to describe exemplary embodiments of the present application, it is obvious to those skilled in the art that the present application embodiments can be implemented without these details or with changes in these details. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0074] While the present application has been described in conjunction with embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description.

[0075] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A vehicle-mounted host, characterized in that: include: Housing (1); A control panel (2) is arranged in the housing (1); A frameless fan (3) is installed on the top of the housing (1) and is used to supply air to the surface of the housing (1); A plurality of heat dissipation teeth (4) are connected to the top of the shell (1) and are arranged at intervals around the circumference of the frameless fan (3); wherein the plurality of heat dissipation teeth (4) located on opposite sides of the frameless fan (3) along the length direction of the shell (1) form a first heat dissipation tooth group, and the heat dissipation teeth (4) in the first heat dissipation tooth group are all arranged in the length direction; the plurality of heat dissipation teeth (4) located on opposite sides of the frameless fan (3) along the width direction of the shell (1) form a second heat dissipation tooth group, and the heat dissipation teeth (4) in the second heat dissipation tooth group are arranged radially from the frameless fan (3) to the edge of the shell (1).

2. The vehicle-mounted host according to claim 1, characterized in that: At least one end of a portion of the heat dissipation teeth (4) close to the frameless fan (3) is a curved surface structure (4-1).

3. The vehicle-mounted host according to claim 1, characterized in that: The distance between the bottom surface of the frameless fan (3) and the bottom end of the heat dissipation teeth (4) is greater than or equal to 5 mm; the height of the heat dissipation teeth (4) is greater than or equal to 25 mm, and the height of the frameless fan (3) is lower than the height of the heat dissipation teeth (4).

4. The vehicle-mounted host according to claim 1, characterized in that: The housing (1) comprises: an upper cover (5), the top surface of which is connected to the heat dissipation teeth (4); a lower cover (6), which cooperates with the upper cover (5) to form a receiving cavity with an opening at one end, and the control panel (2) is placed in the receiving cavity; and a rear cover (7), which is arranged at the opening of the receiving cavity.

5. The vehicle-mounted host according to claim 4, characterized in that: The upper cover (5) is provided with first baffles (5-1) on two opposite sides along the length direction, a second baffle (5-2) is provided on a side of the upper cover (5) away from the rear cover (7), a third baffle (5-3) is connected between the two first baffles (5-1), the third baffle (5-3) is spaced apart from a side of the upper cover (5) close to the rear cover (7), and the first baffle (5-1), the second baffle (5-2) and the third baffle (5-3) form a closed baffle wall; the top surface of the control panel (2) is provided with a conductive structure (2-3) that abuts against the bottom of the closed baffle wall, and the conductive structure (2-3) comprises a plurality of first conductive protrusions (2-4) arranged at intervals.

6. The vehicle-mounted host according to claim 5, characterized in that: The first conductive protrusions (2-4) are tin dots, and the distance between two adjacent first conductive protrusions (2-4) is greater than or equal to 0.6 mm and less than or equal to 5 mm.

7. The vehicle-mounted host according to claim 5, characterized in that: The top surface of the control board (2) is connected to a plurality of components (2-1), the components (2-1) are located in the closed retaining wall, the bottom surface of the upper cover (5) is provided with bosses (5-4) corresponding to the components (2-1), and heat-conducting glue is connected between the bosses (5-4) and the components (2-1).

8. The vehicle-mounted host according to claim 5, characterized in that: The lower cover (6) is respectively connected with first flanges (6-1) on two opposite sides along the length direction, a second flange (6-2) is provided on the side of the lower cover (6) away from the rear cover (7), and a third flange (6-3) is provided on the side of the lower cover (6) close to the rear cover (7); a limiting groove (5-5) is formed at the bottom of the first baffle (5-1) and the second baffle (5-2), the first flange (6-1) and the second flange (6-2) are both abutted against the side wall of the limiting groove (5-5), and the third flange (6-3) is abutted against the side wall of the control board (2); a plurality of second conductive protrusions (6-4) arranged at intervals are provided on the side of the first flange (6-1) and the second flange (6-2) close to the limiting groove (5-5).

9. The vehicle-mounted host according to claim 8, characterized in that: The second conductive protrusion (6-4) and the first flange (6-1) or the second flange (6-2) are an integrally formed structure, and the distance between two adjacent second conductive protrusions (6-4) is 5 mm to 6 mm.

10. A vehicle, characterized in that: It comprises a vehicle body, on which a bracket (3-1) is arranged, and on which a vehicle-mounted host as claimed in any one of claims 1 to 9 is arranged.

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