Heat dissipation structure, electric control equipment and automobile

Abstract

The utility model provides a heat dissipation structure, electric control equipment and an automobile. The heat dissipation structure comprises a shell and a radiator. The shell is provided with a sunken area which is sunken inwards from the outer surface of the shell; the radiator is installed in the concave area, the first end of the radiator is used for being connected with a piece to be cooled, and the second end of the radiator protrudes out of the outer surface of the shell. In the utility model, the design that the second end of the radiator is flush with the outer surface of the shell in the prior art is changed, the concave area is arranged on the shell, and the second end of the radiator protrudes out of the outer surface of the shell under the condition that the height of the radiator is not changed, so that an air channel is formed, the large temperature difference area is increased, and the radiating effect is improved; the radiator can quickly transfer the heat of the to-be-radiated piece to the outside of the shell, so that the space can be effectively utilized for high-efficiency radiation; meanwhile, the radiator is convenient to replace, the capacity of adapting to different environments and working conditions of a product is improved, the expansibility of the product is enhanced, and the competitiveness of the product is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat dissipation structures, and in particular relates to a heat dissipation structure, an electric control device and a car. Background Art

[0002] The heat dissipation structure includes a shell and a radiator. In order to achieve the heat dissipation effect, it is mostly designed as an integrated metal radiator. In order to pursue consistency in appearance, the connection design between the radiator and the shell is not much studied. The height configuration of the radiator and the shell is relatively random, and the space cannot be effectively utilized for efficient heat dissipation. Utility Model Content

[0003] The utility model provides a heat dissipation structure, an electric control device and a car, so as to solve the problem that the shell of the existing heat dissipation structure cannot effectively utilize the space for efficient heat dissipation.

[0004] A heat dissipation structure comprises a shell and a radiator;

[0005] The shell is provided with a recessed area recessed inwardly from the outer surface of the shell;

[0006] The heat sink is installed in the recessed area, a first end of the heat sink is used to be connected to a heat dissipation element, and a second end of the heat sink protrudes from an outer surface of the housing.

[0007] Preferably, the shell is provided with an inclined surface arranged from the periphery of the recessed area to the inside of the recessed area;

[0008] The inclined surface is inclined from the outer side of the shell to the inner side of the shell.

[0009] Preferably, at least three mounting protrusions are provided at intervals on one side surface of the shell.

[0010] Preferably, the heat sink comprises a main body plate and a heat sink;

[0011] The main body plate is mounted on the shell outside the recessed area;

[0012] The first end of the heat sink is mounted on the main body plate, and the second end of the heat sink protrudes from the outer surface of the shell.

[0013] Preferably, the heat sink comprises a plurality of heat sinks, and the plurality of heat sinks are arranged on the main plate at intervals.

[0014] Preferably, the heat dissipation structure further includes a heat conductive layer;

[0015] The first side surface of the heat-conducting layer is used to be connected to the heat dissipating element, and the second side surface of the heat-conducting layer is used to be connected to the first end of the heat sink.

[0016] Preferably, the heat-conducting layer is heat-conducting glue or heat-conducting silicone grease.

[0017] Preferably, the shell is a non-metallic shell, the heat sink is a metal heat sink, and the heat dissipation component includes an electronic control unit.

[0018] An electric control device comprises the heat dissipation structure and an electric control unit; the electric control unit is a heat dissipation component, and the electric control unit is connected to the first end of the radiator in the heat dissipation structure.

[0019] A car comprises the electronic control device.

[0020] The utility model discloses a heat dissipation structure comprising a shell and a radiator; a recessed area recessed inwardly from the outer surface of the shell is provided on the shell; the radiator is installed in the recessed area, the first end of the radiator is used to be connected to the heat element to be cooled, and the second end of the radiator protrudes from the outer surface of the shell. This arrangement changes the previous design in which the second end of the radiator is flush with the outer surface of the shell, and a recessed area recessed inwardly from the outer surface of the shell is provided on the shell. When the height of the radiator remains unchanged, the second end of the radiator protrudes from the outer surface of the shell, thus forming an air duct and increasing the large temperature difference area, thereby improving the heat dissipation effect. The radiator can quickly transfer the heat of the heat element to be cooled to the outside of the shell, and can realize effective use of space for efficient heat dissipation; at the same time, it is easy to replace the radiator, thereby improving the product's ability to adapt to different environments and working conditions, enhancing product scalability, and improving product competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an exploded view of the heat dissipation structure in the utility model;

[0022] Figure 2 It is an isometric view of the heat dissipation structure in the utility model;

[0023] Figure 3 It is an isometric view of the electric control device in the utility model.

[0024] Among them, 1. shell; 11. recessed area; 12. inclined surface; 13. mounting protrusion; 2. radiator; 21. main plate; 22. heat sink; 3. electronic control unit; 4. thermal conductive layer. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The utility model embodiment provides a heat dissipation structure, referring to Figure 1-3 The heat dissipation structure includes a shell 1 and a radiator 2; the shell 1 is provided with a recessed area 11 recessed inward from the outer surface of the shell 1; the radiator 2 is installed in the recessed area 11, the first end of the radiator 2 is used to be connected to the heat dissipation element, and the second end of the radiator 2 protrudes from the outer surface of the shell 1.

[0029] As an example, the heat dissipation structure includes a shell 1 and a radiator 2; a recessed area 11 is provided on the shell 1, which is recessed inward from the outer surface of the shell 1, and the recessed area 11 is specifically arranged in the middle position of an outer surface of the shell 1; the radiator 2 is installed in the recessed area 11, and the first end of the radiator 2 is used to be connected to the heat element to be dissipated, and the second end of the radiator 2 protrudes from the outer surface of the shell 1. This arrangement changes the previous design in which the second end of the radiator 2 is flush with the outer surface of the shell 1. A recessed area 11 is provided on the shell 1, which is recessed inward from the outer surface of the shell 1. When the height of the radiator 2 remains unchanged, the second end of the radiator 2 protrudes from the outer surface of the shell 1, so that an air duct is formed and a large temperature difference area is increased, thereby improving the heat dissipation effect. The radiator 2 can quickly transfer the heat of the heat element to be dissipated to the outside of the shell 1, and can effectively utilize the space for efficient heat dissipation; at the same time, it is easy to replace the radiator 2, thereby improving the product's ability to adapt to different environments and working conditions, enhancing product scalability, and improving product competitiveness.

[0030] In one embodiment, referring to Figure 1 , Figure 2 and Figure 3The shell 1 is provided with an inclined surface 12 which is arranged from the outer periphery of the recessed area 11 to the inner side of the recessed area 11 ; the inclined surface 12 is inclined from the outer side of the shell 1 to the inner side of the shell 1 .

[0031] As an example, the shell 1 is provided with a slope 12 arranged from the outer side of the recessed area 11 to the inside of the recessed area 11; the inclination direction of the slope 12 is from the outer side of the shell 1 to the inner side of the shell 1, so that the intersection of the recessed area 11 of the shell 1 and the radiator 2 forms a large chamfer design, so that the heat dissipation flow channel transitions slowly, which significantly reduces the thermal resistance, increases the wind speed, and improves the heat exchange efficiency.

[0032] In one embodiment, referring to Figure 1 , Figure 2 and Figure 3 At least three mounting protrusions 13 are spaced apart on one side surface of the housing 1 .

[0033] As an example, at least three mounting protrusions 13 are provided at intervals on one side surface of the housing 1, and the housing 1 is mounted using at least three mounting protrusions 13 to ensure stable and secure mounting. Specifically, there are four mounting protrusions 13, and the four mounting protrusions 13 are respectively mounted on the four corners of the housing 1, so that the mounting points of the housing 1 remain balanced, ensuring stable and secure mounting.

[0034] In one embodiment, referring to Figure 1 and Figure 2 The radiator 2 includes a main body plate 21 and a heat sink 22; the main body plate 21 is installed on the shell 1 outside the recessed area 11; the heat sink 22 is arranged in the recessed area 11, and the first end of the heat sink 22 is installed on the main body plate 21, and the second end of the heat sink 22 protrudes from the outer surface of the shell 1.

[0035] As an example, the radiator 2 includes a main body plate 21 and a heat sink 22; the main body plate 21 is mounted on the shell 1 outside the recessed area 11. Specifically, a first mounting hole is provided on the main body plate 21, and a second mounting hole is provided on the shell 1 outside the recessed area 11. Screws or bolts are inserted into the first mounting hole and the second mounting hole to fix the main body plate 21 on the shell 1 outside the recessed area 11. The heat sink 22 is arranged in the recessed area 11. The first end of the heat sink 22 is mounted on the main body plate 21, and the second end of the heat sink 22 protrudes from the outer surface of the shell 1; the previous design that the second end of the radiator 2 is flush with the outer surface of the shell 1 is changed. When the height of the radiator 2 remains unchanged, the second end of the radiator 2 is protruded from the outer surface of the shell 1, that is, a wind duct is formed and a large temperature difference area is increased, thereby improving the heat dissipation effect. The radiator 2 can quickly transfer the heat of the heat dissipation component to be radiated to the outside of the shell 1, and can effectively utilize the space for efficient heat dissipation.

[0036] In one embodiment, referring to Figure 1 and Figure 2 The radiator 2 includes a plurality of radiating fins 22 , and the plurality of radiating fins 22 are arranged on the main plate 21 at intervals.

[0037] As an example, the radiator 2 includes a plurality of fins 22, which are arranged at intervals on the main body plate 21. The radiator 2 is connected to a heat dissipation component, which may be an electronic control unit 3. The radiator 2 can be replaced by selection, so that the radiator 2 with different fin 22 parameters, different materials, different fin shapes, and different fin directions can be replaced as needed, thereby improving the adaptability of the electronic control unit to the environment and different working conditions, and enhancing the expansibility of the electronic control unit.

[0038] In one embodiment, referring to Figure 1 The heat dissipation structure further includes a heat conducting layer 4 ; a first side of the heat conducting layer 4 is used to be connected to the heat dissipation element, and a second side of the heat conducting layer 4 is used to be connected to a first end of the heat sink 2 .

[0039] As an example, the heat dissipation structure also includes a heat conductive layer 4; the first side of the heat conductive layer 4 is used to connect to the heat element to be cooled, and the second side of the heat conductive layer 4 is used to connect to the first end of the radiator 2. This arrangement can increase the contact area between the heat element to be cooled and the radiator 2. By utilizing the characteristics of the heat conductive layer 4, the heat transfer from the heat element to be cooled to the radiator 2 can be improved, thereby improving the heat dissipation efficiency.

[0040] In one embodiment, referring to Figure 1 The heat conducting layer 4 is a heat conducting glue or a heat conducting silicone grease.

[0041] As an example, the heat-conducting layer 4 is a heat-conducting glue or a heat-conducting silicone grease. The heat-conducting silicone grease or the heat-conducting silicone is applied to the bottom of the heat sink 2 to achieve heat transfer, thereby improving the heat dissipation efficiency.

[0042] In one embodiment, referring to Figure 1 and Figure 2 The shell 1 is a non-metallic shell, the radiator 2 is a metal radiator, and the heat dissipation parts include an electronic control unit 3.

[0043] As an example, the housing 1 is a non-metallic housing, such as a plastic housing, which can reduce weight and cost while meeting the support strength. The radiator 2 is a metal radiator, and the radiator 2 does not need to be molded, but only needs to be selected, which can reduce weight and cost. The heat dissipation component includes an electronic control unit 3, which is connected to the first end of the radiator 2, so that the electronic control unit 3 can be efficiently cooled.

[0044] The utility model embodiment provides an electric control device, referring to Figure 1-3 , including a heat dissipation structure and an electronic control unit 3; the electronic control unit 3 is a heat dissipation component, and the electronic control unit 3 is connected to a first end of a radiator 2 in the heat dissipation structure.

[0045] As an example, the electronic control unit 3 is a heat dissipation component to be cooled, and the electronic control unit 3 is connected to the first end of the radiator 2 in the heat dissipation structure, so that the electronic control unit 3 can be efficiently cooled. The heat dissipation structure includes a housing 1 and a radiator 2; a recessed area 11 is provided on the housing 1, which is recessed inward from the outer surface of the housing 1; the radiator 2 is installed in the recessed area 11, and the first end of the radiator 2 is used to be connected to the electronic control unit 3, and the second end of the radiator 2 protrudes from the outer surface of the housing 1. This arrangement changes the previous design that the second end of the radiator 2 is flush with the outer surface of the housing 1. The housing 1 is provided with a recessed area 11 recessed inward from the outer surface of the housing 1. When the height of the radiator 2 remains unchanged, the second end of the radiator 2 protrudes from the outer surface of the housing 1, that is, a wind duct is formed and a large temperature difference area is increased, which improves the heat dissipation effect. The radiator 2 can quickly transfer the heat of the heat dissipation component to be cooled to the outside of the housing 1, and can effectively utilize the space for efficient heat dissipation; at the same time, it is easy to replace the radiator 2, improve the ability of the product to adapt to different environments and working conditions, enhance the product extensibility, and improve the product competitiveness.

[0046] The heat dissipation structure in this example is mainly a method summarized from the heat dissipation design analysis of the electronic control unit 3 of the electronic control equipment. This method can be applied in a limited installation space, through structural design means such as the depression of the shell 1, the protrusion of the radiator 2, and the slow transition between the shell 1 and the radiator 2, to improve the air duct and reduce the thermal resistance. Under the same radiator 2 configuration, it can effectively reduce the chip temperature, while also reducing weight and cost, which has great advantages over previous designs. Specifically, the maximum height of the shell 1 is determined by the installation surface of the electronic control unit and the surrounding environment, the minimum height of the shell 1 is determined by the layout of the internal components, the installation position of the radiator 2 is determined by the layout of the heat-generating components, and the opening position of the shell 1 is determined according to the installation position of the radiator 2. Based on the mounting surface of the electronic control unit and the minimum height of the shell 1, a recessed shell is designed, and a large chamfer is designed at the edge of the opening to achieve a slow transition. The radiator 2 is installed at the opening and fixed to the shell 1 by screws, and then the thermal conductive layer 4 is applied to the bottom of the radiator 2. In this way, the heat-generating components transfer heat to the radiator 2 through the thermal conductive layer 4. Due to the recessed design of the shell 1, the top of the radiator 2 is higher than the shell 1 to form an air duct. Secondly, the transition design from the shell 1 to the radiator 2 greatly reduces the thermal resistance, thereby achieving a good heat dissipation effect; it can reduce weight and cost, and improve the signal transmission and reception effects.

[0047] Under the same environment, same power consumption, and same software settings, the design of the housing 1 is different, and the PCB center point temperature, CPU center point temperature, and heat sink thermal resistance values ​​calculated by simulation are different. The first housing 1 is a conventional housing 1, with a PCB center point temperature of 188.3°C, a CPU center point temperature of 195.66°C, and a heat sink thermal resistance value of 25.9K / W; the second housing 1 is a housing 1 with a recessed area 11, a PCB center point temperature of 161.56°C, a CPU center point temperature of 172°C, and a heat sink thermal resistance value of 22.3K / W; the third housing 1 is a housing 1 with a recessed area 11 and a slope 12, a PCB center point temperature of 150.5°C, a CPU center point temperature of 160.1°C, and a heat sink thermal resistance value of 20K / W. A recessed area 11 is provided on the shell 1, and the top of the radiator 2 can protrude outward, which can reduce the center temperature of the PCB by 26.7°C, the center temperature of the CPU by 23.66°C, and the thermal resistance of the radiator by 3.6K / W; a recessed area 11 and a slope 12 are provided on the shell 1, which can further reduce the center temperature of the PCB by 11.06°C, the center temperature of the CPU by 11.9°C, and the thermal resistance of the radiator by 2.3K / W; performing the two optimizations at the same time can reduce the center temperature of the PCB by 37.8°C, the center temperature of the CPU by 35.56°C, and the thermal resistance of the radiator by 5.9K / W. Through the comparison of the simulation effects, it can be seen that in the three types of shells 1, the temperature of each point on the central vertical section of the radiator 2 is gradually reduced, and the effect is very obvious. Through the comparison of the simulated wind speed, it can be seen that the wind speed in the first type of shell 1 is not high as a whole, and the wind direction is disordered; the wind speed in the second type of shell 1 is increased, and the wind direction is more integrated; the wind speed in the third type of shell 1 is the highest, and the wind direction is the most orderly

[0048] An embodiment of the utility model provides a car, comprising an electric control device.

[0049] As an example, the electronic control unit 3 is a heat dissipation component to be cooled, and the electronic control unit 3 is connected to the first end of the radiator 2 in the heat dissipation structure, so that the electronic control unit 3 can be efficiently cooled. The heat dissipation structure includes a housing 1 and a radiator 2; a recessed area 11 is provided on the housing 1, which is recessed inward from the outer surface of the housing 1; the radiator 2 is installed in the recessed area 11, and the first end of the radiator 2 is used to be connected to the electronic control unit 3, and the second end of the radiator 2 protrudes from the outer surface of the housing 1. This arrangement changes the previous design that the second end of the radiator 2 is flush with the outer surface of the housing 1. The housing 1 is provided with a recessed area 11 recessed inward from the outer surface of the housing 1. When the height of the radiator 2 remains unchanged, the second end of the radiator 2 protrudes from the outer surface of the housing 1, that is, a wind duct is formed and a large temperature difference area is increased, which improves the heat dissipation effect. The radiator 2 can quickly transfer the heat of the heat dissipation component to be cooled to the outside of the housing 1, and can effectively utilize the space for efficient heat dissipation; at the same time, it is easy to replace the radiator 2, improve the ability of the product to adapt to different environments and working conditions, enhance the product extensibility, and improve the product competitiveness.

[0050] The heat dissipation structure in this example is mainly a method summarized from the heat dissipation design analysis of the electronic control unit 3 of the electronic control equipment. This method can be applied in a limited installation space, through structural design means such as the depression of the shell 1, the protrusion of the radiator 2, and the slow transition between the shell 1 and the radiator 2, to improve the air duct and reduce the thermal resistance. Under the same radiator 2 configuration, it can effectively reduce the chip temperature, while also reducing weight and cost, which has great advantages over previous designs. Specifically, the maximum height of the shell 1 is determined by the installation surface of the electronic control unit and the surrounding environment, the minimum height of the shell 1 is determined by the layout of the internal components, the installation position of the radiator 2 is determined by the layout of the heat-generating components, and the opening position of the shell 1 is determined according to the installation position of the radiator 2. Based on the mounting surface of the electronic control unit and the minimum height of the shell 1, a recessed shell is designed, and a large chamfer is designed at the edge of the opening to achieve a slow transition. The radiator 2 is installed at the opening and fixed to the shell 1 by screws, and then the thermal conductive layer 4 is applied to the bottom of the radiator 2. In this way, the heat-generating components transfer heat to the radiator 2 through the thermal conductive layer 4. Due to the recessed design of the shell 1, the top of the radiator 2 is higher than the shell 1 to form an air duct. Secondly, the transition design from the shell 1 to the radiator 2 greatly reduces the thermal resistance, thereby achieving a good heat dissipation effect; it can reduce weight and cost, and improve the signal transmission and reception effects.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat dissipation structure, characterized in that: including a housing and a radiator; The shell is provided with a recessed area recessed inwardly from the outer surface of the shell; The heat sink is installed in the recessed area, a first end of the heat sink is used to be connected to a heat dissipation element, and a second end of the heat sink protrudes from an outer surface of the housing.

2. The heat dissipation structure according to claim 1, characterized in that: The shell is provided with an inclined surface arranged from the periphery of the recessed area to the inside of the recessed area; The inclined surface is inclined from the outer side of the shell to the inner side of the shell.

3. The heat dissipation structure according to claim 1, characterized in that: At least three mounting protrusions are arranged at intervals on one side surface of the shell.

4. The heat dissipation structure according to claim 1, characterized in that: The radiator comprises a main body plate and a radiating fin; The main body plate is mounted on the shell outside the recessed area; The first end of the heat sink is mounted on the main body plate, and the second end of the heat sink protrudes from the outer surface of the shell.

5. The heat dissipation structure according to claim 4, characterized in that: The heat sink comprises a plurality of heat sinks, and the plurality of heat sinks are arranged on the main body plate at intervals.

6. The heat dissipation structure according to claim 1, characterized in that: The heat dissipation structure also includes a heat conductive layer; The first side surface of the heat-conducting layer is used to be connected to the heat dissipating element, and the second side surface of the heat-conducting layer is used to be connected to the first end of the heat sink.

7. The heat dissipation structure according to claim 6, characterized in that: The heat-conducting layer is heat-conducting glue or heat-conducting silicone grease.

8. The heat dissipation structure according to claim 1, characterized in that: The shell is a non-metal shell, the heat sink is a metal heat sink, and the heat dissipation component includes an electronic control unit.

9. An electric control device, characterized in that: It comprises the heat dissipation structure and an electronic control unit as described in any one of claims 1 to 8; the electronic control unit is a heat dissipation component to be cooled, and the electronic control unit is connected to the first end of the radiator in the heat dissipation structure.

10. An automobile, characterized in that: Including the electronic control device as claimed in claim 9.

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