Car lamp control circuit board

Abstract

The utility model relates to the technical field of car lamp control circuit boards, and discloses a car lamp control circuit board which comprises a circuit board body, the circuit board body is connected with an arch-shaped protective cover in a clamped mode, clamping grooves are formed in the two ends of the arch-shaped protective cover, and a ventilation assembly is composed of a base and a rotating convection cap. A limiting ring is arranged on the side wall of the central column; the rotary convection cap is arranged on the upper portion of the center column, the lower portion of the rotary convection cap is open, the side wall of the rotary convection cap is composed of arc-shaped fan blades which are evenly arranged in a staggered and surrounding mode, and the bearing is connected with the rotary convection cap through a second straight rod. When heat is generated above the circuit board body, as the temperature above the protective cover is lower, airflow is generated around the ventilation assembly, so that the rotary convection cap is driven to rotate to take away heat, and moist air generated by condensation due to temperature difference change can be taken away at the same time; therefore, the effects of preventing the circuit board from being affected with damp and damaged and efficiently dissipating heat of the circuit board are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle light control circuit boards, in particular to a vehicle light control circuit board. Background Art

[0002] Circuit boards are the most active industry in the contemporary electronic component industry, and their industry growth rate is generally about 3 percentage points higher than that of the electronic component industry. With the rapid development of electronic technology, the requirements for electronic products are getting higher and higher, the functions are increasing, and the integration of chips is getting higher and higher. Correspondingly, the design requirements for circuit boards are also getting higher and higher. Circuit boards are the product of the development of electronic technology towards high speed, multi-function, large capacity and small size. With the continuous development of electronic technology, especially the extensive and in-depth application of large-scale and ultra-large-scale integrated circuits, circuit boards are rapidly developing towards high density, high precision and high-level digitalization. Technologies such as fine lines, small aperture penetration, blind holes and buried holes, and high board thickness aperture ratio have emerged to meet the needs of the market.

[0003] In the prior art, circuit boards are widely used in electrical appliances in the current industrial, household and other fields. It can be said that the vast majority of current electrical appliances and equipment include circuit boards, and the miniaturization transformation of electromechanical equipment control systems is achieved through circuit boards. However, when the existing circuit boards are used in a humid environment, the circuit boards may become damp, causing the electrical components of the circuit boards to short-circuit, thereby causing damage to the circuit boards. Especially in the environment of automobile lights, a large amount of heat is generated when the automobile lights are working. After the lights stop working, the low temperature environment outside will cause the temperature to drop rapidly, and this temperature difference process leads to condensation, that is, a large amount of water vapor is generated.

[0004] As the number of electronic components on circuit boards increases, some problems that we usually ignore also gradually emerge; because electronic components will emit a certain amount of heat while working normally, and there are a large number of electronic components on the circuit board, when they work together, they emit a lot of heat, but the circuit board itself has poor heat dissipation performance and small space, and the electronic components are densely distributed, so it will be difficult to dissipate heat, causing the circuit board to heat up quickly; when the temperature reaches a certain level, it will affect the work of some electronic components, and even burn the electronic components and circuit boards in severe cases, especially the circuit boards used in car lights, which not only have the heat generated by the circuit board itself, but also the heat emitted by the light of the car lights, making the circuit board exposed to high temperature environment for a long time, which has a great impact on the life of the product, so it is very necessary to dissipate heat for it.

[0005] During the driving process, the vehicle often faces various road conditions, including bumpy roads. Such road conditions not only test the stability of the vehicle's suspension system and driving comfort, but also pose a potential threat to the circuit boards and other components inside the vehicle; when the car passes through bumpy roads, the vehicle chassis and suspension system will be subjected to greater impact and vibration, which may cause unnecessary vibration, collision or damage to the circuit boards or other electronic components on the chassis. Especially when the vehicle is driving at high speed or passing through uneven roads, the impact of such vibration and bumps on the circuit board is particularly obvious. In this case, the circuit board often requires additional protection measures, such as a sturdy support frame or isolation material to reduce the impact of vibration and impact, so as to ensure the stability and reliability of the electronic components. When designing a vehicle, it is very important to consider the impact of road conditions on electronic components to ensure that the vehicle can maintain good working condition under various road conditions. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] In view of the deficiencies in the prior art, the utility model provides a car light control circuit board, which has the advantages of preventing the circuit board from being damaged by moisture, efficiently dissipating heat for the circuit board, and protecting the circuit board body from being damaged by impact, thereby solving the problem that the circuit board may be damaged by moisture, unable to dissipate heat, or may be damaged by impact when the temperature difference changes.

[0008] (II) Technical solution

[0009] In order to achieve the above-mentioned purpose of preventing the circuit board from being damaged by moisture, efficiently dissipating the heat of the circuit board, and protecting the circuit board from being damaged by impact, the utility model provides the following technical solutions: a car light control circuit board, including a circuit board body, the circuit board body is clamped with an arched protective cover with clamping grooves at both ends, and the middle high point position of the protective cover is axially designed with at least one circular through hole, and a ventilation component is arranged above the through hole; the ventilation component is composed of a base and a rotating convection cap, the base is annular and is connected to a center column through a first straight rod at its central axis position, and a limiting ring is arranged on the side wall of the center column; the rotating convection cap is arranged on the upper part of the center column, and the rotating convection cap is specifically a lower opening, and the side wall is composed of arc-shaped fan blades that are evenly staggered and arranged around, and a bearing is arranged at the lower central axis position of the rotating convection cap, and the bearing is connected to the rotating convection cap through a second straight rod.

[0010] Preferably, the middle high point of the protective cover is axially designed as a plane, the through hole passes through the plane, and the diameter of the through hole is not greater than the width of the plane.

[0011] Preferably, the distance between the card slots at both ends of the protective cover is equal to the width of the circuit board body, and the height in the card slot is equal to the thickness of the circuit board body.

[0012] Preferably, the inner ring diameter of the bearing is equal to the diameter of the center column, and the limiting ring is welded to the center column and the distance from the upper end of the center column is no greater than the thickness of the bearing.

[0013] Preferably, the ventilation assembly is made of lightweight materials, including aluminum alloy, glass fiber reinforced plastic, and carbon fiber composite material.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a car light control circuit board, which has the following beneficial effects:

[0016] 1. The headlight control circuit board is designed by inserting the circuit board body into a slot of a specially designed protective cover. This protective cover is different from the traditional flat structure. Instead, it adopts an arched design. This design helps to provide a more effective protection mechanism when the vehicle passes through bumpy roads or uneven roads to prevent the circuit board body from being hit and damaged. The arched protective cover can disperse the impact force and change the direction, thereby reducing the impact force on the circuit board body, thereby achieving the effect of protecting the circuit board body from being damaged by impact.

[0017] 2. The headlight control circuit board is designed with a through hole at the middle high point of the arched protective cover, and a ventilation assembly is arranged on the through hole. The ventilation assembly consists of a base and a rotating convection cap. The base is annular and is connected to a center column through a first straight rod at its central axis position, and a limit ring is arranged on the side wall of the center column; the rotating convection cap is arranged on the upper part of the center column, and the rotating convection cap specifically has a lower opening and a side wall composed of arc-shaped fan blades that are evenly staggered and arranged around, and a bearing is arranged at the lower central axis position of the rotating convection cap, and the bearing is connected to the rotating convection cap through a second straight rod. When heat is generated above the circuit board body, since the temperature above the protective cover is lower, airflow will be generated around the ventilation assembly, thereby driving the rotating convection cap to rotate and take away the heat, and also taking away the humid air generated by condensation due to temperature difference changes. In addition, the design of the arched protective cover can also bring a wind tunnel effect to the device and generate gas flow, thereby preventing the circuit board from being damaged by moisture and efficiently dissipating the heat of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a right side structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the explosion structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the front view structure of the ventilation assembly of the utility model;

[0022] Figure 5 This is a schematic diagram of the lower structure of the ventilation component of the utility model.

[0023] In the figure: 1-circuit board body, 2-protective cover, 21-slot, 22-through hole, 3-ventilation assembly, 31-base, 311-first straight rod, 312-center column, 313-limiting ring, 32-rotating convection cap, 321-arc fan blade, 33-bearing, 34-second straight rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-3 The light control circuit board includes a circuit board body 1, which is snap-connected with an arched protective cover 2 having slots 21 at both ends. The distance between the slots 21 at both ends of the protective cover 2 is equal to the width of the circuit board body 1, and the height in the slot 21 is equal to the thickness of the circuit board body 1, so that the circuit board body 1 can be firmly snapped into the slot 21; the middle high point of the protective cover 2 is axially designed as a plane, and the middle high point of the protective cover 2 is axially designed with at least one circular through hole 22, that is, at least one through hole 22 is evenly arranged on the plane, the through hole 22 passes through the plane, and the diameter of the through hole 22 is not greater than the width of the plane, and a ventilation component 3 is arranged above the through hole 22, and the ventilation component 3 can specifically discharge the hot air generated above the circuit board body 1, and at the same time achieve the dehumidification effect.

[0026] See also Figure 4-5The ventilation assembly 3 is composed of a base 31 and a rotating convection cap 32. The ventilation assembly 3 is made of lightweight materials, including aluminum alloy, glass fiber reinforced plastic, and carbon fiber composite materials. The base 31 is annular and is connected to a center column 312 through a first straight rod 311 at its central axis. A limit ring 313 is provided on the side wall of the center column 312; the rotating convection cap 32 is arranged on the upper part of the center column 312. The rotating convection cap 32 is specifically open at the bottom and the side wall is composed of arc-shaped fan blades 321 arranged uniformly and staggered around. The structure It can rotate when receiving airflow, and a bearing 33 is provided at the lower center axis position of the rotating convection cap 32. The bearing 33 is connected to the rotating convection cap 32 through a second straight rod 34. The inner ring diameter of the bearing 33 is equal to the diameter of the center column 312. The limiting ring 313 is welded to the center column 312 and the distance from the upper end of the center column 312 is no greater than the thickness of the bearing 33. The bearing 33 is clamped into the upper end of the center column 312 and then restricted from falling by the limiting ring 313, so that the ventilation assembly 3 can be installed.

[0027] Working principle: by inserting the circuit board body 1 into the slots 21 at both ends of the arched protective cover 2, the size of the slots 21 is limited so that the circuit board body 1 is firmly fixed, and the protective cover 2 can also be protected from impact; due to the arched design of the protective cover 2, a wind tunnel effect is generated between the protective cover 2 and the circuit board body 1, so that the gas flows between them to reduce the problem of the circuit board body 1 and remove humid air; the bearing 33 of the ventilation component 3 is placed on the central column 312 and is limited by the limit ring 313. When the circuit board body 1 generates temperature, the hot gas rises and forms a temperature difference with the gas on the upper part of the protective cover 2, so that gas flow is generated around the arc-shaped fan blades of the ventilation component 3, thereby driving the rotating convection cap 32 to rotate and take away the internal air, thereby also achieving the effect of cooling and dehumidification.

[0028] In summary, the headlight control circuit board, by plugging the circuit board body 1 into a card slot 21 of a specially designed protective cover 2, the protective cover 2 is different from the traditional planar structure, but adopts an arched design, which helps to provide a more effective protection mechanism when the vehicle passes through bumpy roads or uneven roads, preventing the circuit board body 1 from being hit and damaged. The arched protective cover 2 can disperse the impact force and change the direction, thereby reducing the impact force on the circuit board body 1, thereby achieving the effect of protecting the circuit board body from being damaged by impact.

[0029] The vehicle light control circuit board is designed with a through hole 22 at the middle high point of the arched protective cover 2, and a ventilation component 3 is arranged on the through hole 22. The ventilation component 3 consists of a base 31 and a rotating convection cap 32. The base 31 is annular and is connected to a center column 312 at its central axis through a first straight rod 311. A limit ring 313 is arranged on the side wall of the center column 312; the rotating convection cap 32 is arranged on the upper part of the center column 312, and the rotating convection cap 32 is specifically opened at the bottom, and the side wall consists of arc-shaped fan blades 321 that are evenly staggered and arranged around, and the rotating convection cap 3 2 is provided with a bearing 33 at the lower center axis position, and the bearing 33 is connected to the rotating convection cap 32 through a second straight rod 34. When heat is generated above the circuit board body 1, since the temperature above the protective cover 2 is lower, airflow will be generated around the ventilation component 3, thereby driving the rotating convection cap 32 to rotate and take away the heat, and also take away the humid air generated by condensation due to temperature difference changes. In addition, the design of the arched protective cover 2 can also bring a wind tunnel effect to the equipment and generate gas flow, thereby achieving the effect of preventing the circuit board from being damaged by moisture and efficiently dissipating the heat of the circuit board.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle light control circuit board, comprising a circuit board body (1), characterized in that: The circuit board body (1) is clamped with an arched protective cover (2) having clamping grooves (21) at both ends; at least one circular through hole (22) is axially designed at the middle high point of the protective cover (2); a ventilation assembly (3) is arranged above the through hole (22); The ventilation assembly (3) is composed of a base (31) and a rotating convection cap (32); the base (31) is annular and is connected to a center column (312) at its center axis through a first straight rod (311); a limit ring (313) is provided on the side wall of the center column (312); The rotating convection cap (32) is arranged on the upper part of the central column (312). The rotating convection cap (32) is specifically open at the bottom, and the side wall is composed of arc-shaped fan blades (321) that are evenly staggered and arranged in a surrounding manner. A bearing (33) is arranged at the lower center axis position of the rotating convection cap (32), and the bearing (33) is connected to the rotating convection cap (32) through a second straight rod (34).

2. The vehicle light control circuit board according to claim 1, characterized in that: The middle high point of the protective cover (2) is axially designed as a plane, the through hole (22) passes through the plane, and the diameter of the through hole (22) is not greater than the width of the plane.

3. The vehicle light control circuit board according to claim 1, characterized in that: The distance between the two end slots (21) of the protective cover (2) is equal to the width of the circuit board body (1), and the height inside the slots (21) is equal to the thickness of the circuit board body (1).

4. The vehicle light control circuit board according to claim 1, characterized in that: The inner ring diameter of the bearing (33) is equal to the diameter of the center column (312); the limiting ring (313) is welded to the center column (312) and the distance from the upper end of the center column (312) is no greater than the thickness of the bearing (33).

5. The vehicle light control circuit board according to claim 1, characterized in that: The ventilation component (3) is made of lightweight materials, including aluminum alloy, glass fiber reinforced plastic, and carbon fiber composite material.

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