High-density waterproof corrosion-resistant circuit board
By setting up an air collector and a blower under the circuit board fixture, and setting a waterproof and breathable membrane and corrosion-resistant layer on the surface of the circuit board, the problem of poor heat dissipation of the circuit board is solved, effective heat dissipation and waterproof and corrosion-proof effects are achieved, and the circuit is extended The service life of the board.
Patent Information
- Application Number
- CN202420724370.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-09
AI Technical Summary
Existing waterproof and corrosion-resistant circuit boards cannot discharge heat in time when they are heated when they are running, resulting in poor service effect and life span.
An air collector and a blower are installed under the fixing frame, and the airflow is guided through the deflector and the air chamber air guide groove system, combining the waterproof and breathable membranes and corrosion-resistant layers on the upper and lower sides of the circuit board to improve heat dissipation and waterproof and corrosion-resistant performance.
It realizes effective heat dissipation and cooling of the circuit board, reduces the residence time of water stains, improves the waterproof and corrosion resistance of the circuit board, and thus extends the service life.
Smart Images
Figure CN222302074U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a high-density waterproof and corrosion-resistant circuit board, belonging to the technical field of circuit boards. Background Art
[0002] The names of circuit boards include: ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, circuit boards, PCB boards, aluminum substrates, high-frequency boards, thick copper boards, impedance boards, PCBs, ultra-thin circuit boards, ultra-thin circuit boards, printed circuit boards, etc. Circuit boards miniaturize and visualize circuits, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layouts.
[0003] For example, CN213280418U discloses a waterproof and corrosion-resistant circuit board with shock absorption, which is provided with a bottom frame, a waterproof plate, a transparent plate and an inner frame to form a closed space, effectively preventing moisture from contacting the circuit board 4. At the same time, by providing a plug-in block, a slot, a first spring, and a through slot, the circuit board is confined between the bottom of the bottom frame and the bottom of the inner frame to avoid collision between the circuit board and the inner wall of the bottom frame to damage the circuit board. The second spring is used to reduce the vibration of the collision in the up and down directions. The rubber sleeve wrapped around the outside of the positioning column can reduce the collision between the positioning column and the positioning hole, thereby reducing the vibration of the bottom frame, thereby achieving the purpose of shock absorption. Although the bottom frame can reduce the shock of the circuit board, since the circuit board is sealed all around, although it can isolate water, the air around the circuit board cannot flow. When the circuit board is running and heating up, the heat generated cannot be discharged in time, which will have a negative impact on the use effect and service life of the circuit board. Utility Model Content
[0004] The purpose of the utility model is to provide a high-density waterproof and corrosion-resistant circuit board. By arranging an air collecting hood and a blower under a fixed frame, the blower can blow air to the circuit board, thereby maintaining air flow above the circuit board to dissipate heat and cool the circuit board. At the same time, waterproof and breathable films and corrosion-resistant layers are provided on the upper and lower surfaces of the circuit board, which can improve the waterproof and corrosion-resistant properties of the circuit board itself, thereby maintaining the use effect and service life of the circuit board, so as to solve the problems raised in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A high-density waterproof and corrosion-resistant circuit board comprises a fixing frame, a plurality of supporting legs are fixedly connected to the bottom of the fixing frame, shock-absorbing foot pads are connected to the bottom of the supporting legs, an air collecting hood is provided at the center below the fixing frame, a blower is provided inside the air collecting hood, a guide plate is provided at the center of the air collecting hood adjacent to the blower, an air cavity is connected above the air collecting hood, one end of the air cavity is connected to an air guide groove, the top of the air guide groove is connected to an air outlet, and a circuit board is provided inside the fixing frame.
[0007] Furthermore, the blowers are provided with two and are symmetrically arranged on both sides of the air collecting hood, the guide plate is arranged between the blowers, and both sides of the guide plate are arc-shaped.
[0008] Furthermore, a dust filter is provided at the lower part of the air collecting hood, and the center of the dust filter is connected to the bottom of the guide plate.
[0009] Furthermore, the air cavity is arranged below the fixing frame, and the air cavity is formed by combining the fixing frame and the circuit board.
[0010] Furthermore, the air guide groove is opened inside the fixing frame, and the air guide groove is arranged around the fixing frame, the air outlet holes are arranged around the fixing frame, and the height of the air outlet holes on the fixing frame is greater than the height of the circuit board in the fixing frame.
[0011] Furthermore, a waterproof and breathable membrane is provided on the upper and lower sides of the circuit board, a corrosion-resistant layer is provided on the outer side of the waterproof and breathable membrane, and the material of the corrosion-resistant layer is FEP film.
[0012] The beneficial effects of the utility model are:
[0013] 1. By arranging an air hood and a blower under the fixing frame, the blower can blow air to the bottom of the circuit board, and the guide plate can guide the wind to the air cavity and the air guide groove, so that the air blown by the blower can be discharged from the air outlet through the air cavity and the air guide groove and blown on the upper surface of the circuit board, thereby maintaining the air flow above the circuit board to dissipate heat and cool the circuit board. At the same time, when the surface of the circuit board is stained with water stains, the wind discharged from the air outlet can be blown on the surface of the circuit board to make the water on the surface of the circuit board evaporate quickly, thereby reducing the residence time of the water stains on the circuit board and reducing the damage of the water stains to the circuit board.
[0014] 2. By setting a waterproof breathable film and a corrosion-resistant layer on the upper and lower surfaces of the circuit board, the waterproof breathable film has good waterproof performance, and the corrosion-resistant layer can not only isolate water, but also has good anti-corrosion performance, thereby improving the waterproof and anti-corrosion performance of the circuit board itself, thereby maintaining the use effect and service life of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.
[0016] Figure 1 This is a front view of a high-density waterproof and corrosion-resistant circuit board of the utility model;
[0017] Figure 2It is a cross-sectional view of a high-density waterproof and corrosion-resistant circuit board of the utility model;
[0018] Figure 3 It is a cross-sectional view of a circuit board of a high-density waterproof and corrosion-resistant circuit board of the utility model;
[0019] Figure 4 The utility model is a high-density waterproof and corrosion-resistant circuit board Figure 2 A partial enlarged view of the area at center A;
[0020] Numbers in the figure: 1. Fixed frame; 2. Support leg; 3. Shock-absorbing foot pad; 4. Air collecting hood; 5. Blower; 6. Guide plate; 7. Air cavity; 8. Air guide groove; 9. Air outlet; 10. Circuit board; 11. Dust filter; 12. Waterproof and breathable membrane; 13. Corrosion-resistant layer. DETAILED DESCRIPTION
[0021] 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.
[0022] Example 1: Please refer to Figure 1-Figure 4 , the utility model provides a technical solution:
[0023] A high-density waterproof and corrosion-resistant circuit board comprises a fixing frame 1, a plurality of supporting legs 2 are fixedly connected to the bottom of the fixing frame 1, a shock-absorbing foot pad 3 is connected to the bottom of the supporting leg 2, an air collecting hood 4 is arranged at the center below the fixing frame 1, a blower 5 is arranged inside the air collecting hood 4, a guide plate 6 is arranged at the center of the air collecting hood 4 adjacent to the blower 5, an air cavity 7 is connected above the air collecting hood 4, one end of the air cavity 7 is connected to an air guide groove 8, the top of the air guide groove 8 is connected to an air outlet 9, and a circuit board 10 is arranged inside the fixing frame 1.
[0024] Specifically, the blower 5 is provided with two and is symmetrically arranged on both sides of the air collecting hood 4, the guide plate 6 is arranged between the blowers 5, and the two sides of the guide plate 6 are arc-shaped. A dust filter 11 is provided at the lower part of the air collecting hood 4, and the center of the dust filter 11 is connected to the bottom of the guide plate 6. The blower 5 can blow air from the air collecting hood 4 to the bottom of the circuit board 10, which can dissipate heat and cool the bottom of the circuit board 10.
[0025] Specifically, the air cavity 7 is arranged below the fixing frame 1, and the air cavity 7 is composed of the fixing frame 1 and the circuit board 10. The air guide groove 8 is opened inside the fixing frame 1, and the air guide groove 8 is arranged around the fixing frame 1. The air outlet 9 is arranged around the fixing frame 1. The height of the air outlet 9 on the fixing frame 1 is greater than the height of the circuit board 10 in the fixing frame 1. The wind blown by the blower 5 can be guided to the upper surface of the circuit board 10 through the air cavity 7, the air guide groove 8 and the air outlet 9, so that the upper surface of the circuit board 10 can be dissipated and cooled.
[0026] Example 2: Please refer to Figure 3 The difference between this embodiment and embodiment 1 is that: the circuit board 10 is provided with a waterproof breathable membrane 12 on the upper and lower sides, and the outer side of the waterproof breathable membrane 12 is provided with a corrosion-resistant layer 13. The material of the corrosion-resistant layer 13 is FEP film. The waterproof breathable membrane 12 can be attached to the surface of the circuit board 10 to improve the waterproof performance of the circuit board 10. The corrosion-resistant layer 13 can not only isolate water, but also has good anti-corrosion performance, thereby improving the waterproof and anti-corrosion performance of the circuit board 10 itself.
[0027] Working principle of the utility model: when in use, the blower 5 can blow air to the bottom of the circuit board 10, and the guide plate 6 can guide the wind to the air cavity 7 and the air guide groove 8, so that the wind blown by the blower 5 can be discharged from the air outlet 9 through the air cavity 7 and the air guide groove 8 and blown on the upper surface of the circuit board 10, so that the air flow above the circuit board 10 can be maintained to dissipate heat and cool the circuit board 10. At the same time, when the surface of the circuit board 10 is stained with water stains, the wind derived from the air outlet 9 can be blown on the surface of the circuit board 10 to make the water on the surface of the circuit board 10 evaporate quickly, thereby reducing the residence time of the water stains on the circuit board 10 and reducing the damage of the water stains to the circuit board 10. The waterproof and breathable membrane 12 on the circuit board 10 has good waterproof performance, and the corrosion-resistant layer 13 can not only isolate water, but also has good anti-corrosion performance, thereby improving the waterproof and anti-corrosion performance of the circuit board 10 itself, thereby maintaining the use effect and service life of the circuit board 10.
[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A high-density waterproof and corrosion-resistant circuit board, comprising a fixing frame (1), characterized in that: A plurality of supporting legs (2) are fixedly connected to the bottom of the fixing frame (1), and a shock-absorbing foot pad (3) is connected to the bottom of the supporting leg (2). An air collecting hood (4) is provided at the center below the fixing frame (1), and a blower (5) is provided inside the air collecting hood (4). A guide plate (6) is provided at the center of the air collecting hood (4) adjacent to one side of the blower (5). An air cavity (7) is connected above the air collecting hood (4), and one end of the air cavity (7) is connected to an air guide groove (8), and the top of the air guide groove (8) is connected to an air outlet (9). A circuit board (10) is provided inside the fixing frame (1).
2. A high-density waterproof and corrosion-resistant circuit board according to claim 1, characterized in that: The blowers (5) are provided with two and are symmetrically arranged on both sides of the inside of the air collecting hood (4); the guide plate (6) is arranged between the blowers (5); and both sides of the guide plate (6) are in an arc shape.
3. The high-density waterproof and corrosion-resistant circuit board according to claim 1, characterized in that: A dustproof filter (11) is provided at the lower part of the interior of the air collecting hood (4), and the center of the dustproof filter (11) is connected to the bottom of the guide plate (6).
4. The high-density waterproof and corrosion-resistant circuit board according to claim 1, characterized in that: The air cavity (7) is arranged below the fixing frame (1), and the air cavity (7) is formed by combining the fixing frame (1) and the circuit board (10).
5. The high-density waterproof and corrosion-resistant circuit board according to claim 1, characterized in that: The air guide groove (8) is opened inside the fixing frame (1), and the air guide groove (8) is arranged around the inside of the fixing frame (1), the air outlet holes (9) are arranged around the inside of the fixing frame (1), and the height of the air outlet holes (9) on the fixing frame (1) is greater than the height of the circuit board (10) in the fixing frame (1).
6. The high-density waterproof and corrosion-resistant circuit board according to claim 1, characterized in that: The circuit board (10) is provided with waterproof and breathable membranes (12) on the upper and lower sides, and a corrosion-resistant layer (13) is provided on the outer side of the waterproof and breathable membrane (12). The material of the corrosion-resistant layer (13) is a FEP film.