Discrete air cooling heat dissipation structure for three-in-one controller

Abstract

The utility model discloses a discrete air cooling heat dissipation structure for a three-in-one controller, which comprises a lower shell, a first mounting position and a second mounting position are arranged in the lower shell, the first mounting position is used for detachably mounting a DCAC module, and the second mounting position is used for detachably mounting a DCDC module; a second ventilation opening is formed in the bottom face of the lower shell, a second fan is fixed to the second ventilation opening, and the air suction side of the second fan faces the interior of the lower shell. The bottom surface of the lower shell is provided with a plurality of second heat dissipation teeth in a protruding mode, and the second heat dissipation teeth are distributed on the peripheral side of the second ventilation opening. An upper cover plate is detachably connected to the top of the lower shell, a first ventilation opening is formed in the upper cover plate, a first fan is fixed to the first ventilation opening, and the air suction side of the first fan faces the interior of the lower shell; a plurality of first heat dissipation teeth are arranged on the top face of the upper cover plate in a protruding mode, and the first heat dissipation teeth are distributed on the peripheral side of the first ventilation opening.

Description

Technical Field

[0001] The utility model relates to the field of automobiles, and in particular to a discrete air-cooling heat dissipation structure for a three-in-one controller. Background Art

[0002] In traditional new energy (electric) vehicles, DCDC chargers, motor drive control, inverters, charging and distribution systems and other components are arranged separately, and each component is connected by a wiring harness. The entire space layout is very complex, and the volume is large and the weight is heavy. With the rapid development of new energy vehicles and fierce competition in the industry, integrated design has become the main way to promote cost reduction. Through integrated design, on the one hand, it can simplify the assembly of the main engine factory and improve the product qualification rate; on the other hand, it can greatly reduce the number of suppliers and achieve the purpose of lightweight and cost saving.

[0003] At present, there are a large number of mature and stable three-in-one controllers in the civilian market. The three-in-one controller is equipped with two DCAC modules and DCDC modules, which can achieve the goals of integration, lightweight and small size. However, the special vehicle market is still in its infancy. Special vehicles have more internal equipment and require greater power. The three-in-one controller needs to meet greater power output under the condition of limited volume requirements. Greater power means more and more concentrated heat dissipation, so a more efficient heat dissipation method is needed to ensure its stable and reliable operation.

[0004] The three-in-one controller adopts the air-cooling heat dissipation in the prior art, and its shell is usually composed of a lower shell with parallel straight fins and a thin plate-type cover. The heat source is centrally installed in the lower shell, and the heat is transferred to the fins of the lower shell by heat conduction, and then the heat on the fins is blown away / extracted by the fan installed at the end of the fin. This heat dissipation method has a concentrated heat source, a limited surface area of ​​the heat dissipation teeth, and low heat dissipation power, which cannot meet the small size and high power requirements of special vehicles. Therefore, how to provide an efficient air-cooling heat dissipation shell has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] The utility model aims to provide a discrete air-cooled heat dissipation structure for a three-in-one controller, so as to solve the technical problem that the heat dissipation structure in the integrated three-in-one controller in the prior art is unreasonable and easily leads to low heat dissipation power consumption.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] The utility model discloses a discrete air-cooling heat dissipation structure for a three-in-one controller, comprising a lower shell, wherein the lower shell has a first mounting position and a second mounting position, wherein the first mounting position is used for detachably mounting a DCAC module, and the second mounting position is used for detachably mounting a DCDC module;

[0008] A second vent is formed on the bottom surface of the lower housing, a second fan is fixed to the second vent, and an air suction side of the second fan faces the interior of the lower housing;

[0009] The bottom surface of the lower shell has a plurality of second heat dissipation teeth protruding therefrom, and each of the second heat dissipation teeth is distributed around the second vent;

[0010] The top of the lower shell is detachably connected to an upper cover plate, the upper cover plate is provided with a first vent, a first fan is fixed at the first vent, and the air suction side of the first fan faces the interior of the lower shell;

[0011] The top surface of the upper cover plate has a plurality of first heat dissipation teeth protruding therefrom, and each of the first heat dissipation teeth is distributed around the first vent.

[0012] In the field of electric vehicles, the above-mentioned DCAC modules and DCDC modules often use some semiconductor devices and often work under high voltage and high current conditions. Therefore, DCAC modules and DCDC modules are usually located in high-power usage scenarios and generate a lot of heat. The discrete air-cooled heat dissipation structure disclosed in this solution can fully dissipate the large amount of heat generated by the DCAC module and the DCDC module through the first fan, the second fan and the multiple first heat dissipation teeth and the second heat dissipation teeth, so that a large amount of heat can be dissipated as quickly as possible in a short time.

[0013] Preferably, the installation position of the first fan is opposite to the first installation position, and the center line of the first vent coincides with the center line of the top surface of the upper cover plate, so that the heat generated by the DCAC module can be dissipated more specifically.

[0014] Preferably, the installation position of the second fan is aligned with the second installation position, and the center line of the second vent coincides with the center line of the bottom surface of the lower housing, so that the heat generated by the DCDC module can be dissipated more specifically.

[0015] Preferably, the first heat dissipation tooth is a vertical plate structure, one side of the vertical plate structure is fixed to the top surface of the upper cover plate, and extends outward from the top surface of the upper cover plate in a direction perpendicular to the top surface of the upper cover plate; the second heat dissipation tooth is a vertical plate structure, one side of the vertical plate structure is fixed to the bottom surface of the lower shell body, and extends outward from the top surface of the upper cover plate in a direction perpendicular to the top surface of the upper cover plate.

[0016] Preferably, each of the first heat dissipation teeth is radially distributed around the first vent with the center of the first vent as the center; each of the second heat dissipation teeth is radially distributed around the second vent with the center of the second vent as the center.

[0017] In order to further improve the heat dissipation efficiency, preferably, two first ventilation holes are provided on the upper cover plate, a first fan is installed in each first ventilation hole, and the two first fans are axially symmetrically arranged on one side of the upper cover plate corresponding to the first installation position.

[0018] In order to further improve the heat dissipation efficiency, preferably, two first ventilation holes are opened on the upper cover plate, and a first fan is installed in each first ventilation hole. The two first fans are arranged symmetrically along the diagonal of the upper cover plate, and the installation positions correspond to the first installation position and the second installation position respectively.

[0019] In order to further improve the heat dissipation efficiency, preferably, two second ventilation holes are opened on the lower shell, a second fan is installed in each second ventilation hole, and the two second fans are axially symmetrically arranged on the side of the upper cover corresponding to the first installation position.

[0020] In order to further improve the heat dissipation efficiency, preferably, two second ventilation holes are opened on the lower shell, and a second fan is installed in each second ventilation hole. The two second fans are arranged in a centrally symmetrical manner along the diagonal line of the bottom surface of the lower shell, and the installation positions correspond to the first installation position and the second installation position respectively.

[0021] The technical solution of the utility model has the following beneficial effects: the discrete air-cooling heat dissipation structure disclosed in the solution can fully dissipate the large amount of heat generated by the DCAC module and the DCDC module as quickly as possible in a short time by setting the first fan, the second fan and the multiple first heat dissipation teeth and the second heat dissipation teeth. The multiple heat dissipation teeth are set on the surface of the upper cover plate or the lower shell body, which can increase the heat dissipation area and effectively guide the air flow, thereby improving the heat dissipation efficiency. When used in conjunction with the first fan and the second fan, the heat dissipation effect can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings, in which:

[0023] Figure 1 It is a schematic diagram of the overall structure of the discrete air-cooling heat dissipation structure of the utility model.

[0024] Figure 2 It is a top view of the overall structure of the discrete air-cooling heat dissipation structure of the utility model.

[0025] Figure 3 It is a bottom view of the overall structure of the discrete air-cooling heat dissipation structure of the utility model.

[0026] Figure 4 It is an exploded diagram of the overall structure of the discrete air-cooling heat dissipation structure of the utility model.

[0027] Figure 5 It is a schematic structural diagram of a preferred solution of the upper cover plate of the utility model.

[0028] Figure 6 It is a schematic structural diagram of a preferred solution of the upper cover plate of the utility model.

[0029] Figure 7 It is a schematic structural diagram of a preferred solution of the lower shell of the utility model.

[0030] Figure 8 It is a schematic structural diagram of a preferred solution of the lower shell of the utility model.

[0031] Fig. 9 It is a schematic diagram of the heat dissipation structure in the prior art.

[0032] Fig.10 It is a temperature cloud diagram inside the lower shell of the heat dissipation structure in the prior art.

[0033] Fig.11 It is a temperature cloud diagram of the outer shell of the heat dissipation structure in the prior art.

[0034] Fig.12 This is a temperature cloud diagram of the upper cover plate of the discrete air-cooling heat dissipation structure of the utility model.

[0035] Fig.13 This is a temperature cloud diagram of the lower shell of the discrete air-cooled heat dissipation structure of the utility model.

[0036] Explanation of the reference numerals: 101, upper cover; 102, lower housing; 103, first fan; 104, first heat dissipation tooth; 105, second fan; 106, second heat dissipation tooth; 107, DCAC module; 108, DCDC module; 109, heightening block; 110, heat dissipation fan. DETAILED DESCRIPTION

[0037] In order to better understand the purpose, structure and function of the utility model, the discrete air-cooling heat dissipation structure for a three-in-one controller of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0038] The utility model can be applied to the integrated assembly of internal parts of new energy vehicles, and specifically solves the technical problem that the unreasonable heat dissipation structure in the integrated three-in-one controller in the prior art easily leads to low heat dissipation power consumption.

[0039] See also Figures 1 to 4, based on the technical problems solved above, the utility model discloses a discrete air-cooling heat dissipation structure for a three-in-one controller, including a lower housing 102, wherein the lower housing 102 has a first mounting position and a second mounting position, wherein the first mounting position is used for detachably mounting a DCAC module 107, and the second mounting position is used for detachably mounting a DCDC module 108;

[0040] A second vent is formed on the bottom surface of the lower housing 102, a second fan 105 is fixed to the second vent, and an air suction side of the second fan 105 faces the interior of the lower housing 102;

[0041] The bottom surface of the lower housing 102 has a plurality of second heat dissipation teeth 106 protruding therefrom, and each of the second heat dissipation teeth 106 is distributed around the second vent;

[0042] The top of the lower housing 102 is detachably connected to an upper cover plate 101, the upper cover plate 101 is provided with a first vent, a first fan 103 is fixed at the first vent, and the air suction side of the first fan 103 faces the interior of the lower housing 102;

[0043] The top surface of the upper cover plate 101 has a plurality of first heat dissipation teeth 104 protruding therefrom, and each of the first heat dissipation teeth 104 is distributed around the first vent.

[0044] In the field of electric vehicles, the DCAC module 107 and the DCDC module 108 often use some semiconductor devices and often work under high voltage and high current conditions. Therefore, the DCAC module 107 and the DCDC module 108 are usually located in high-power usage scenarios and generate a lot of heat. The discrete air-cooled heat dissipation structure disclosed in this solution can fully dissipate the large amount of heat generated by the DCAC module 107 and the DCDC module 108 through the first fan 103, the second fan 105 and the multiple first heat dissipation teeth 104 and the second heat dissipation teeth 106, so that a large amount of heat can be dissipated as quickly as possible in a short time.

[0045] Specifically, the upper cover plate 101 and the lower shell 102 are detachably connected by bolts.

[0046] Specifically, the DCAC module 107 is detachably mounted on the inner bottom surface of the lower housing 102 by screws.

[0047] The DCAC module 107, which can also be called a DC-AC converter or inverter, has the main function of converting a direct current (DC) power supply into an alternating current (AC) power supply. Such a converter is widely used in situations where an AC power supply is required, such as supplying AC power from a DC power supply such as a solar panel or a battery pack to household appliances or a power grid.

[0048] Specifically, the DCDC module 108 is detachably mounted on the inner bottom surface of the lower housing 102 by screws.

[0049] The DCDC module 108, also known as a DC-DC converter, is a device that converts a DC power supply at one voltage level into a DC power supply at another voltage level, and is commonly used in battery management systems of electric vehicles.

[0050] As a preference, see Figure 4 The installation position of the first fan 103 is opposite to the first installation position, and the center line of the first vent coincides with the center line of the top surface of the upper cover 101. In this way, the heat generated by the DCAC module 107 can be dissipated more specifically.

[0051] As a preference, see Figure 4 A plurality of heightening blocks 109 are fixed to the bottom of the DCAC module 107, and the heightening blocks 109 are evenly distributed at the bottom of the DCAC module 107. In this way, after the DCAC module 107 is installed, the upper end of the DCAC module 107 can be as close to the upper cover 101 as possible, so that heat transfer is faster, and at the same time, there is an air circulation channel between the bottom of the DCAC module 107 and the inner bottom surface of the lower shell 102, which is more conducive to heat dissipation.

[0052] As a preference, see Figure 4 , the installation position of the second fan 105 is aligned with the second installation position, and the center line of the second vent coincides with the center line of the bottom surface of the lower housing 102. In this way, the heat generated by the DCDC module 108 can be dissipated more specifically.

[0053] As a preference, see Figures 1 to 4 The first heat dissipation tooth 104 is a vertical plate structure, one side of which is fixed to the top surface of the upper cover plate 101 and extends outward from the top surface of the upper cover plate 101 in a direction perpendicular to the top surface of the upper cover plate 101.

[0054] As a preference, see Figures 1 to 4 The first heat dissipation teeth 104 are radially distributed around the first ventilation opening with the center of the first ventilation opening as the center of the circle.

[0055] As a preference, see Figures 1 to 4 The second heat dissipation tooth 106 is a vertical plate structure, one side of which is fixed to the bottom surface of the lower shell 102 and extends outward from the top surface of the upper cover plate 101 in a direction perpendicular to the top surface of the upper cover plate 101.

[0056] As a preference, see Figures 1 to 4The second heat dissipation teeth 106 are radially distributed around the second ventilation opening with the center of the second ventilation opening as the center.

[0057] In order to further improve the heat dissipation efficiency, as a preferred option, please refer to Figure 5 The upper cover plate 101 is provided with two first ventilation openings, each of which is provided with a first fan 103 , and the two first fans 103 are axially symmetrically arranged on one side of the upper cover plate 101 corresponding to the first installation position.

[0058] In order to further improve the heat dissipation efficiency, as a preferred option, please refer to Figure 6 Two first ventilation holes are provided on the upper cover plate 101, and a first fan 103 is installed in each of the first ventilation holes. The two first fans 103 are arranged symmetrically along the diagonal of the upper cover plate 101, and the installation positions correspond to the first installation position and the second installation position respectively.

[0059] In order to further improve the heat dissipation efficiency, as a preferred option, please refer to Figure 7 The lower shell 102 is provided with two second ventilation openings, each of which is provided with a second fan 105 , and the two second fans 105 are axially symmetrically arranged on one side of the upper cover 101 corresponding to the first installation position.

[0060] In order to further improve the heat dissipation efficiency, as a preferred option, please refer to Figure 8 Two second ventilation holes are provided on the lower shell 102, and a second fan 105 is installed in each second ventilation hole. The two second fans 105 are arranged symmetrically along the diagonal line of the bottom surface of the lower shell 102, and the installation positions correspond to the first installation position and the second installation position respectively.

[0061] The use of a discrete air-cooled heat dissipation structure for a three-in-one controller disclosed in the utility model has the following technical effects: the discrete air-cooled heat dissipation structure of the utility model is provided with a plurality of radially distributed heat dissipation teeth on the surface of the upper cover plate or the lower shell, which can increase the heat dissipation area, effectively guide the air flow, and thus improve the heat dissipation efficiency. When used in conjunction with the first fan and the second fan, the heat dissipation effect can be further improved; in addition, the plurality of radially distributed heat dissipation teeth can enable heat to be quickly radiated outward from the concentrated hot spot through the plurality of heat dissipation teeth, which helps to reduce the formation of local hot spots, thereby protecting the DCAC module or the DCDC module from overheating damage; in addition, the plurality of radially distributed heat dissipation teeth are fixed to the surface of the upper cover plate or the lower shell, which is conducive to enhancing mechanical stability, and is easy to integrate and install, thereby increasing the reliability of the entire heat dissipation system; in specific implementation, the radial heat dissipation plate can be flexibly adjusted according to specific thermal management and mechanical requirements, such as changing its length, spacing and number, to adapt to different application scenarios, thereby increasing the application scope of the discrete air-cooled heat dissipation structure disclosed in the utility model.

[0062] In order to further illustrate the difference between the structure of the present invention and the prior art, the present invention discloses the following embodiments and comparative examples. Example

[0063] See also Figures 1 to 4 The discrete air-cooling heat dissipation structure for the three-in-one controller adopted in this embodiment includes a lower housing 102, wherein the lower housing 102 has a first mounting position and a second mounting position, wherein the first mounting position is used for detachably mounting a DCAC module 107, and the second mounting position is used for detachably mounting a DCDC module 108; the DCAC module 107 is detachably mounted on the first mounting position of the inner bottom surface of the lower housing 102 by screws; the DCDC module 108 is detachably mounted on the second mounting position of the inner bottom surface of the lower housing 102 by screws;

[0064] A second vent is provided on the bottom surface of the lower shell 102, and a second fan 105 is fixed at the second vent. The installation position of the second fan 105 is aligned with the second installation position, and the center line of the second vent coincides with the center line of the bottom surface of the lower shell 102. The air suction side of the second fan 105 faces the inside of the lower shell 102, so that the heat generated by the DCDC module 108 can be dissipated in a more targeted manner.

[0065] The bottom surface of the lower housing 102 has a plurality of second heat dissipation teeth 106 protruding therefrom, and each of the second heat dissipation teeth 106 is radially distributed around the second vent with the center of the second vent as the center of the circle; the second heat dissipation teeth 106 are vertical plate structures, one side of which is fixed to the bottom surface of the lower housing 102 and extends outward from the top surface of the upper cover plate 101 in a direction perpendicular to the top surface of the upper cover plate 101;

[0066] The top of the lower shell 102 is detachably connected to an upper cover 101, and the upper cover 101 is provided with a first vent, and a first fan 103 is fixed at the first vent. The installation position of the first fan 103 is opposite to the first installation position, and the center line of the first vent coincides with the center line of the top surface of the upper cover 101. The air suction side of the first fan 103 faces the inside of the lower shell 102, so that the heat generated by the DCAC module 107 can be dissipated more specifically; a plurality of heightening blocks 109 are fixed to the bottom of the DCAC module 107, and the heightening blocks 109 are evenly distributed at the bottom of the DCAC module 107. In this way, after the DCAC module 107 is installed, the upper end of the DCAC module 107 can be as close to the upper cover 101 as possible, so that the heat transfer is faster, and at the same time, there is an air circulation channel between the bottom of the DCAC module 107 and the inner bottom surface of the lower shell 102, which is more conducive to heat dissipation.

[0067] The top surface of the upper cover plate 101 has a plurality of first heat dissipation teeth 104 protruding therefrom, and each of the first heat dissipation teeth 104 is radially distributed around the first vent with the center of the first vent as the center of the circle, and the first heat dissipation teeth 104 are vertical plate structures, one side of the vertical plate structure is fixed to the top surface of the upper cover plate 101, and extends outward from the top surface of the upper cover plate 101 in a direction perpendicular to the top surface of the upper cover plate 101.

[0068] In the field of electric vehicles, the DCAC module 107 and the DCDC module 108 often use some semiconductor devices and often work under high voltage and high current conditions. Therefore, the DCAC module 107 and the DCDC module 108 are usually located in high-power usage scenarios and generate a lot of heat. The discrete air-cooled heat dissipation structure disclosed in this solution can fully dissipate the large amount of heat generated by the DCAC module 107 and the DCDC module 108 through the first fan 103, the second fan 105 and the multiple first heat dissipation teeth 104 and the second heat dissipation teeth 106, so that a large amount of heat can be dissipated as quickly as possible in a short time.

[0069] Specifically, the upper cover plate 101 and the lower shell 102 are detachably connected by bolts.

[0070] Comparative Example

[0071] See also Fig. 9 The heat dissipation structure for the three-in-one controller in the prior art also includes an upper cover and a lower shell, wherein a plurality of heat dissipation fans are arranged on the side of the lower shell, the upper cover adopts a thin plate structure, and the lower shell adopts a structure with parallel straight fins. The DCAC module and the DCDC module in the prior art are both installed at the bottom of the lower shell. There are a plurality of heat dissipation fans in the prior art, all of which are arranged at a position close to the bottom of the side of the lower shell. Then, this installation method in the prior art will cause the heat source to be installed in the lower shell in a concentrated manner, and the heat is transferred to the fins of the lower shell by heat conduction, and then the heat on the fins is blown away / extracted by the fan installed on the side of the fins.

[0072] Specifically, the heat sources of the three-in-one controller used in the embodiment and the comparative example all come from two DCAC modules and one DCDC module. Therefore, the discrete air-cooled heat dissipation structure used in the embodiment is compared with the heat dissipation structure in the comparative example. The comparative example installs all three heat sources in the lower shell, which is tightly installed and the heat source is concentrated; the embodiment adopts a staggered installation scheme to disperse the heat source.

[0073] Specifically, 3D software was used to measure the heat dissipation areas of the heat dissipation structure in the comparison example and the discrete air-cooled heat dissipation structure in the embodiment of the same size. The outer dimensions of both are 465mm×375mm×167mm. The heat dissipation area of ​​the heat dissipation structure in the comparison example is 1567596.09mm², and the heat dissipation area of ​​the discrete air-cooled heat dissipation structure in the embodiment is 2084177.85mm². From the above data, the heat dissipation area of ​​the discrete air-cooled heat dissipation structure in the embodiment is 1.33 times that of the comparison example.

[0074] Specifically, the total power of the three-in-one controller is 15KW, and the efficiency is 96%, so the total power consumption that needs to be dissipated is 600W. The power consumption list is shown in Table 1.

[0075] Table 1 Power device list

[0076]

[0077] Then, according to the above data, under the condition of the highest ambient temperature of 65°C, thermal simulation is performed on the heat dissipation structure in the comparative example and the discrete air-cooled heat dissipation structure in the embodiment to obtain a temperature cloud map. Since the temperature cloud map is difficult to reflect the specific temperature simulation results in grayscale color, Figures 10 to 13 The temperature cloud map in the figure is displayed in color to reflect the actual temperature simulation results. The specific simulation results are as follows:

[0078] See also Fig.10 and Fig.11, is the temperature cloud diagram for the heat dissipation structure in the comparative example. The high temperature appears on the DCAC module installed in the lower shell, and the highest temperature is 115.459℃, which exceeds the technical requirement of 90℃ temperature protection.

[0079] See also Fig.12 and Fig.13 , is a temperature cloud diagram for the discrete air-cooling heat dissipation structure in the embodiment. The highest temperature appears on the DCAC module installed on the upper cover, and the highest temperature is 84.0066°C.

[0080] According to the temperature of the simulation results as a comparison, it can be seen that at the same ambient temperature of 65°C, the maximum temperature of the discrete air-cooling heat dissipation structure in the embodiment is 84.0066°C, and the temperature rise is 19.0066°C. The maximum temperature of the discrete air-cooling heat dissipation structure in the embodiment is 115.459°C, and the temperature rise is 50.459°C. The heat dissipation effect of the discrete air-cooling heat dissipation structure in the embodiment is significantly better than the heat dissipation effect of the discrete air-cooling heat dissipation structure in the embodiment.

[0081] Then the following conclusion can be drawn: under the same external dimensions, the discrete air-cooling heat dissipation structure adopted in the embodiment has a more dispersed heat source, a larger heat dissipation area, a greater heat dissipation power, and a better heat dissipation effect.

[0082] It can be understood that the present invention is described by some specific embodiments / embodiments, and those skilled in the art are aware that various changes or equivalent substitutions can be made to these features and specific embodiments / embodiments without departing from the spirit and scope of the present invention. Under the guidance of the present invention, these features and specific embodiments / embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. The specific embodiments / embodiments described in the present invention are part of the specific embodiments / embodiments of the present invention, rather than all of the specific embodiments / embodiments. The components of the specific embodiments / embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the specific embodiments / embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but only represents the selected specific embodiments / embodiments of the present invention. Therefore, the present invention is not limited by the specific embodiments / embodiments disclosed herein, and all other specific embodiments / embodiments obtained by ordinary technicians in the field without creative work based on the specific embodiments / embodiments in the present invention belong to the scope of protection of the present invention.

Claims

1. A discrete air-cooling heat dissipation structure for a three-in-one controller, characterized in that: It includes a lower shell, which has a first mounting position and a second mounting position, the first mounting position is used for detachably installing a DCAC module, and the second mounting position is used for detachably installing a DCDC module; a second vent is provided on the bottom surface of the lower shell, a second fan is fixed at the second vent, and the air suction side of the second fan faces the inside of the lower shell; a plurality of second heat dissipation teeth are protruding from the bottom surface of the lower shell, and each of the second heat dissipation teeth is distributed around the second vent; an upper cover plate is detachably connected to the top of the lower shell, the upper cover plate is provided with a first vent, a first fan is fixed at the first vent, and the air suction side of the first fan faces the inside of the lower shell; a plurality of first heat dissipation teeth are protruding from the top surface of the upper cover plate, and each of the first heat dissipation teeth is distributed around the first vent.

2. The discrete air-cooling heat dissipation structure for a three-in-one controller according to claim 1, characterized in that: The installation position of the first fan is opposite to the first installation position, and the center line of the first vent coincides with the center line of the top surface of the upper cover plate.

3. The discrete air-cooling heat dissipation structure for a three-in-one controller according to claim 2, characterized in that: The installation position of the second fan is aligned with the second installation position, and the center line of the second vent coincides with the center line of the bottom surface of the lower housing.

4. The discrete air-cooling heat dissipation structure for a three-in-one controller according to claim 3, characterized in that: The first heat dissipation tooth is a vertical plate structure, one side of which is fixed to the top surface of the upper cover plate and extends outward from the top surface of the upper cover plate in a direction perpendicular to the top surface of the upper cover plate; the second heat dissipation tooth is a vertical plate structure, one side of which is fixed to the bottom surface of the lower shell body and extends outward from the top surface of the upper cover plate in a direction perpendicular to the top surface of the upper cover plate.

5. The discrete air-cooling heat dissipation structure for a three-in-one controller according to claim 4, characterized in that: Each of the first heat dissipation teeth is radially distributed around the first ventilating opening with the center of the first ventilating opening as the center of the circle; each of the second heat dissipation teeth is radially distributed around the second ventilating opening with the center of the second ventilating opening as the center of the circle.

6. The discrete air-cooling heat dissipation structure for a three-in-one controller according to claim 1, characterized in that: The upper cover plate is provided with two first ventilation openings, each of which is provided with a first fan, and the two first fans are axially symmetrically arranged on one side of the upper cover plate corresponding to the first installation position.

7. The discrete air-cooling heat dissipation structure for a three-in-one controller according to claim 6, characterized in that: The upper cover plate is provided with two first ventilation openings, each of which is provided with a first fan, and the two first fans are arranged along the diagonal line of the upper cover plate in a centrally symmetrical manner, and the installation positions correspond to the first installation position and the second installation position respectively.

8. The discrete air-cooling heat dissipation structure for a three-in-one controller according to claim 6 or 7, characterized in that: The lower shell body is provided with two second ventilation openings, each of which is provided with a second fan, and the two second fans are axially symmetrically arranged on a side of the upper cover plate corresponding to the first installation position.

9. The discrete air-cooling heat dissipation structure for a three-in-one controller according to claim 8, characterized in that: The lower shell is provided with two second ventilation holes, each of which is provided with a second fan. The two second fans are arranged symmetrically along the diagonal line of the bottom surface of the lower shell, and the installation positions correspond to the first installation position and the second installation position respectively.

Images