High-efficiency heat dissipation circuit board special for new energy vehicle

Abstract

The utility model relates to the technical field of circuit boards, in particular to an efficient heat dissipation circuit board special for a new energy vehicle, which comprises a shell and the like. The shell is an assembly carrier of the circuit board, the shell is a frame body with openings symmetrically formed in the two sides, a plurality of air vents are formed in the top surface of the shell, supporting plates are symmetrically arranged on the two sides of the inner wall of the shell, and the circuit board is supported and assembled in the shell through the supporting plates; the plurality of cooling fans are uniformly arranged at the top of the shell through the air vents; and the plurality of cooling fans are used for efficiently blowing air to cool the circuit board in the shell. According to the utility model, the plurality of cooling fans are uniformly arranged at the top of the shell, and the exhaust plates are arranged at the openings at the two sides, so that the heat generated by the circuit board can be effectively discharged to the outside, the cooling efficiency is improved, and the design is beneficial to keeping the temperature of the circuit board in a safe range when the circuit board works, and prolonging the service life of the circuit board.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, and in particular to a high-efficiency heat dissipation circuit board for new energy vehicles. Background Art

[0002] With increasing global awareness of environmental protection and government support for emission reduction policies, the new energy vehicle industry has developed rapidly. Electric vehicles have received widespread attention due to their zero-emission characteristics. However, electronic devices such as high-voltage battery packs, motor controllers, and inverters in electric vehicles generate a lot of heat during operation. If this heat cannot be dissipated in a timely and effective manner, it will cause the equipment temperature to be too high, affecting its normal operation and even potentially causing malfunctions or safety accidents.

[0003] Patent publication number CN208300119U discloses a novel circuit board for new energy vehicles, including a soldering area and a circuit area. The soldering area is a solderable copper layer area located at both ends, and the circuit area is a wiring layer with a total thickness less than that of the soldering area and a double-sided film bonding area located between the two soldering areas. The double-sided film is a non-uniform thickness covering film. This circuit board, by covering with a thick insulating film, can more effectively avoid components mounted on the circuit board during installation, achieving better safety insulation under high current conditions. However, it still has shortcomings. Specifically, since no specific active heat dissipation measures are mentioned, this single heat dissipation method may not meet the heat dissipation requirements of high power density electronic devices under extreme operating conditions. Utility Model Content

[0004] In order to overcome the shortcomings of existing circuit boards that only improve heat dissipation by optimizing wiring and structure, which cannot achieve efficient heat dissipation, this utility model provides a high-efficiency heat dissipation circuit board for new energy vehicles.

[0005] The technical solution of this utility model is: a high-efficiency heat dissipation circuit board for new energy vehicles, comprising a shell and a circuit board. The shell serves as the assembly carrier for the circuit board and is a frame with symmetrical openings on both sides. Multiple vents are located on the top surface of the shell, and support plates are symmetrically arranged on both sides of the inner wall of the shell. The circuit board is supported by the support plates and assembled into the interior of the shell. The system also includes: multiple cooling fans evenly installed on the top of the shell through the vents, which efficiently blow air onto the circuit board inside the shell for heat dissipation; an exhaust plate symmetrically arranged on the openings on both sides of the shell, with multiple grid-distributed exhaust vents; and a dustproof mesh I located at the air inlet of each cooling fan. The dustproof mesh I prevents dust from entering the circuit board inside the shell and causing adverse effects. By having multiple cooling fans blow air inwards together, the heat generated on the circuit board is carried away to the openings on both sides, improving the heat dissipation effect of the circuit board.

[0006] To further explain, all the cooling fans are detachably installed on the vents on the top surface of the housing, which facilitates cleaning or maintenance of the cooling fans.

[0007] To further explain, a dustproof mesh II is provided on the side of the exhaust vent of the exhaust plate near the inside of the housing. The dustproof mesh II is used to prevent dust from entering the circuit board inside the housing and causing adverse effects.

[0008] Further explanation: It also includes guide rods, dust removal brushes, and driving components. The guide rods are symmetrically installed at the openings on both sides of the housing. The dust removal brushes are slidably installed on the guide rods. The flexible bristles on the dust removal brushes contact the inner wall of the dustproof net II. The openings on both sides of the housing are also provided with driving components, which are used to drive the dust removal brushes to clean the dustproof net II.

[0009] To further explain, the driving component includes a bearing housing, a lead screw, and a motor. The bearing housing is disposed on one inner wall of the opening of the housing. The lead screw is rotatably mounted on the opening of the housing via the bearing housing. The motor is mounted on the other inner wall of the opening of the housing. The output shaft of the motor is connected to the lead screw. The motor drives the lead screw to rotate, so that the lead screw thread drives the dust removal brush to automatically clean the dust and impurities attached to the dustproof net II, saving the manual work of frequently disassembling the exhaust plate for cleaning.

[0010] To further explain, the exhaust plate is detachably installed on the outer casing by bolts. Tightening or loosening the bolts allows the exhaust plate to be easily removed, and the exhaust plate and dust removal brush can be easily replaced and maintained.

[0011] Compared with the prior art, the present invention has the following advantages: 1. By uniformly installing multiple cooling fans on the top of the outer shell and setting exhaust plates at the openings on both sides, the present invention can effectively dissipate the heat generated by the circuit board to the outside, thereby improving the heat dissipation efficiency. This design helps to keep the temperature of the circuit board within a safe range during operation and extend its service life.

[0012] 2. This utility model has dustproof net I and dustproof net II respectively installed at the air inlet of the cooling fan and the air outlet of the exhaust plate grid, which can effectively block external dust from entering the inside of the casing and contaminating the circuit board, reducing the risk of short circuit or other electrical failures caused by dust.

[0013] 3. This utility model utilizes a motor to drive a lead screw, causing the dust removal brush to move along the guide rod, automatically removing dust and impurities accumulated on the dustproof screen. This not only improves the stability of equipment operation but also reduces the workload of manual maintenance. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the cooling fan and exhaust plate of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the exhaust plate, exhaust outlet, and dustproof net II of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the components of this utility model, including the guide rod, dust removal brush, bearing seat, and lead screw.

[0018] In the attached diagrams: 1-outer shell, 101-support plate, 2-circuit board, 3-cooling fan, 4-exhaust plate, 5-exhaust vent, 6-dustproof net I, 7-dustproof net II, 8-guide rod, 9-dust removal brush, 10-bearing seat, 11-lead screw, 12-motor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example: A high-efficiency heat dissipation circuit board specifically for new energy vehicles, such as... Figures 1-4 As shown, the device includes a housing 1 and a circuit board 2. The housing 1 serves as the assembly carrier for the circuit board 2. The housing 1 is a frame with symmetrical openings on both sides. Multiple ventilation ports are located on the top surface of the housing 1. Support plates 101 are symmetrically arranged on both sides of the inner wall of the housing 1. The circuit board 2 is supported by the support plates 101 and assembled into the interior of the housing 1. The device also includes: multiple cooling fans 3, evenly installed on the top of the housing 1 through the ventilation ports, which efficiently cool the circuit board 2 inside the housing 1; an exhaust plate 4, symmetrically arranged on the openings on both sides of the housing 1, with multiple grid-distributed exhaust ports 5; and a dustproof mesh Ⅰ 6. Dustproof mesh I6 is installed at the air inlet of each cooling fan 3 to prevent dust from entering the circuit board 2 inside the housing 1 and causing adverse effects. Multiple cooling fans 3 blow air inward together, thereby carrying away the heat generated on the circuit board 2 to the openings on both sides, improving the heat dissipation effect of the circuit board 2. The cooling fans 3 are all detachably installed on the vent on the top surface of the housing 1, which is convenient for cleaning or maintenance. Dustproof mesh II7 is installed on the side of the exhaust vent 5 of the exhaust plate 4 near the inside of the housing 1. Dustproof mesh II7 is used to prevent dust from entering the circuit board 2 inside the housing 1 and causing adverse effects.

[0021] like Figure 1 and Figure 4 As shown, it also includes a guide rod 8, a dust removal brush 9, and a driving component. The guide rod 8 is symmetrically installed at the two openings on both sides of the housing 1. The dust removal brush 9 is slidably installed on the guide rod 8. The flexible bristles on the dust removal brush 9 contact the inner wall of the dustproof net II 7. The two openings on both sides of the housing are also provided with a driving component, which is used to drive the dust removal brush 9 to clean the dustproof net II 7.

[0022] like Figure 4 As shown, the driving component includes a bearing housing 10, a lead screw 11, and a motor 12. The bearing housing 10 is located on one side of the inner wall of the opening of the housing 1. The lead screw 11 is rotatably mounted on the opening of the housing 1 via the bearing housing 10. The motor 12 is mounted on the other side of the inner wall of the opening of the housing 1. The output shaft of the motor 12 is connected to the lead screw 11. The motor 12 drives the lead screw 11 to rotate, so that the lead screw 11 drives the dust removal brush 9 to automatically clean the dust and impurities attached to the dustproof net II 7, saving the manual work of frequently disassembling the exhaust plate 4 for cleaning.

[0023] like Figure 1 and Figure 3 As shown, the exhaust plate 4 is detachably installed on the housing 1 by bolts. Tightening or loosening the bolts allows the exhaust plate 4 to be easily removed, and the exhaust plate 4 and dust removal brush 9 can be easily replaced and maintained.

[0024] When circuit board 2 generates heat during operation, multiple cooling fans 3 installed on the vents at the top of housing 1 are activated. These cooling fans 3 blow air inward through the vents, forming a stable airflow that directly acts on the surface of circuit board 2, helping it to quickly dissipate the generated heat. Because symmetrical support plates 101 are provided on both sides of the interior of housing 1 to support circuit board 2, air can circulate from both above and below the circuit board 2, further improving heat dissipation efficiency. Simultaneously, exhaust vents 5 with a grid distribution are provided on the exhaust plates 4 located at the openings on both sides of housing 1, allowing the hot air propelled by the cooling fans 3 to be exhausted to the outside. This forms an effective airflow circulation path: cold air enters from the top, becomes hot air after passing through circuit board 2, and is then exhausted through the exhaust plates 4 on both sides, thus achieving continuous cooling. To prevent external dust and other impurities from entering the casing 1 and contaminating the circuit board 2, a dust filter I6 is installed at the air inlet of each cooling fan 3. At the same time, a dust filter II7 is also added to the side of the exhaust plate 4 near the inside of the casing 1. This double protection effectively prevents dust from entering. In addition, a system consisting of a guide rod 8, a dust removal brush 9, and a drive component (including a bearing housing 10, a lead screw 11, and a motor 12) can periodically clean the dust accumulated on the dust filter II7. Specifically, the output shaft of the motor 12 drives the lead screw 11 to rotate, which in turn causes the dust removal brush 9, which is slidably mounted on the guide rod 8, to move along the direction of the lead screw 11. At this time, its flexible bristles gently sweep across the surface of the dust filter II7, removing the dust attached to it. This method can reduce the need for manual maintenance and maintain the cleanliness and effectiveness of the entire heat dissipation system.

[0025] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent substitutions made within the principles of this utility model should be included within the protection scope of this utility model. Contents not described in detail in this utility model are existing technologies known to those skilled in the art.

Claims

1. A high-efficiency heat dissipation circuit board for new energy vehicles, comprising a housing (1) and a circuit board (2), wherein the housing (1) is a frame with symmetrical openings on both sides, the top surface of the housing (1) has multiple vents, and the inner walls of the housing (1) are symmetrically provided with support plates (101) on both sides, and the circuit board (2) is supported by the support plates (101) and assembled into the interior of the housing (1); Its characteristic is that it also include: Multiple cooling fans (3) are evenly installed on the top of the outer casing (1) through the air vents; The exhaust plate (4) is symmetrically arranged on the openings on both sides of the outer shell (1), and the exhaust plate (4) has multiple grid-distributed exhaust ports (5); Dustproof mesh I (6) is installed at the air inlet of each of the cooling fans (3). The dustproof mesh I (6) is used to prevent dust from entering the circuit board (2) inside the housing (1) and causing adverse effects.

2. The high-efficiency heat dissipation circuit board for new energy vehicles according to claim 1, characterized in that, The cooling fans (3) are all detachably installed on the vents on the top surface of the outer casing (1).

3. The high-efficiency heat dissipation circuit board for new energy vehicles according to claim 2, characterized in that, A dustproof net II (7) is provided on the side of the exhaust vent (5) of the exhaust plate (4) near the inside of the outer shell (1).

4. The high-efficiency heat dissipation circuit board for new energy vehicles according to claim 3, characterized in that, It also includes a guide rod (8), a dust removal brush (9) and a driving component. The guide rod (8) is symmetrically installed at the two openings on both sides of the housing (1). The dust removal brush (9) is slidably installed on the guide rod (8). The flexible bristles on the dust removal brush (9) contact the inner wall of the dustproof net II (7). A driving component is also provided at the two openings on both sides of the housing. The driving component is used to drive the dust removal brush (9) to clean the dustproof net II (7).

5. The high-efficiency heat dissipation circuit board for new energy vehicles according to claim 4, characterized in that, The driving component includes a bearing housing (10), a lead screw (11), and a motor (12). The bearing housing (10) is disposed on one side of the inner wall of the opening of the housing (1). The lead screw (11) is rotatably mounted on the opening of the housing (1) through the bearing housing (10). The motor (12) is mounted on the other side of the inner wall of the opening of the housing (1). The output shaft of the motor (12) is connected to the lead screw (11).

6. The high-efficiency heat dissipation circuit board for new energy vehicles according to claim 5, characterized in that, The exhaust plate (4) is detachably mounted on the outer casing (1) by bolts.

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