Printed circuit board structure

Abstract

The utility model relates to the technical field of printed circuit boards, in particular to a printed circuit board structure, which comprises a connecting plate, a circuit board main body is fixedly connected to the top surface of the connecting plate in a penetrating, clamping and embedding manner, a telescopic rod is fixedly connected to the bottom surface of the connecting plate, and a sleeve box is movably connected to the outer side surface of the telescopic rod in a sleeving and embedding manner. Clamping mechanisms are arranged on the back-to-back side surfaces of the two sleeve boxes, each clamping mechanism comprises a storage box which penetrates through and is fixedly connected to the back-to-back side surfaces of the two sleeve boxes, a pulling plate is arranged on one side of each storage box, and a clamping plate is fixedly connected to the bottom surface of each pulling plate; the refrigeration box, the semiconductor refrigeration sheet, the heat dissipation box, the cold air box, the air outlet disc and the air blowing mechanism are arranged, the air outlet disc is arranged above the cold air box, the bottom end of the air outlet disc is fixedly connected to the cold air box through the communicating pipe, the air outlet holes are formed in the surface of the top of the air outlet disc, and cold air generated by the semiconductor refrigeration sheet in the cold air box is blown out through the air blowing mechanism.

Description

Technical Field

[0001] This utility model relates to a printed circuit board structure and belongs to the field of printed circuit board technology. Background Technology

[0002] Printed circuit boards (PCBs) are important components in the electronics industry, providing electrical interconnection and mechanical support for electronic components. They play a crucial role in various electronic devices. For example, the multilayer PCB for air conditioners mentioned in authorization announcement number CN209593888U includes a connecting plate, a main body, a heat sink, and buffer pillars. Fans are installed at both ends of the top of the heat sink, and buffer pillars are installed at the four corners of the top of the heat sink. Each buffer pillar has a reserved cavity inside, and a shock-absorbing spring is installed at the bottom of each reserved cavity. A pressure block is fixed to the end of each shock-absorbing spring away from the reserved cavity.

[0003] In this device, the circuit board assembly is directly connected to the heat sink via a plug-in connection, and the circuit board is cooled by blowing air. However, in actual applications, it is difficult to conveniently cool the circuit board by blowing out cold air, resulting in mediocre cooling performance. Furthermore, it is not convenient to assemble and disassemble the circuit board assembly and the heat sink base plate, and the stability of the connection between the circuit board assembly and the heat sink base plate is generally poor, which is not conducive to its widespread use. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a printed circuit board structure.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a printed circuit board structure, including a connecting plate, a circuit board body is fixedly connected to the top surface of the connecting plate, a telescopic rod is fixedly connected to the bottom surface of the connecting plate, a sleeve box is movably connected to the outer surface of the telescopic rod, and a clamping mechanism is provided on the back-to-back side surfaces of the two sleeve boxes. The clamping mechanism includes a storage box fixedly connected to the back-to-back side surfaces of the two sleeve boxes, a pull plate is provided on one side of the storage box, a locking plate is fixedly connected to the bottom surface of the pull plate, a mounting base plate is slidably connected to the bottom end of the sleeve box, a cooling box is fixedly connected to the top surface of the mounting base plate, a semiconductor cooling chip is fixedly connected to the inner surface of the cooling box, a heat sink is fixedly connected to one side surface of the cooling box, a cold air box is fixedly connected to the side surface of the cooling box away from the heat sink, an air outlet plate is provided above the cold air box, and a blower mechanism is provided on one side surface of the cold air box and one side surface of the heat sink.

[0006] Preferably, the top surface of the sleeve box has a groove that matches the structural dimensions of the telescopic rod, and a rubber column is fixedly connected to the bottom end of the telescopic rod, with the end of the rubber column away from the telescopic rod fixedly connected to the sleeve box.

[0007] Preferably, the two storage boxes are respectively snapped into and slidably connected to two pull plates, and a clamping spring is fixedly connected to one side surface of the pull plate, and the end of the pull plate away from the clamping spring is fixedly connected to the storage box.

[0008] Preferably, the vertical cross-section of the card plate is L-shaped, and both sides of the mounting base plate are provided with card slots that match the structural dimensions of the card plate.

[0009] Preferably, an air outlet pipe is fixedly connected to the outer surface of the heat dissipation box, and a filter screen is fixedly connected to the inner surface of the end of the air outlet pipe away from the heat dissipation box.

[0010] Preferably, the bottom end of the air outlet plate is fixedly connected to the cold air box through a connecting pipe, and an air outlet hole is provided on the top surface of the air outlet plate.

[0011] Preferably, the blower mechanism includes an air outlet cover fixedly connected to one side surface of the cold air box and one side surface of the heat dissipation box. A blower motor is fixedly connected to one side surface of the air outlet cover, and a blower fan blade is fixedly connected to the output end of the blower motor. The blower fan blade is located in the inner cavity of the air outlet cover.

[0012] The beneficial effects of this utility model are:

[0013] This utility model incorporates a cooling box, a semiconductor cooling chip, a heat sink, a cold air box, an air outlet plate, and a blower mechanism. An air outlet plate is located above the cold air box, and its bottom end is fixedly connected to the cold air box via a connecting pipe. An air outlet hole is located on the top surface of the air outlet plate. The cold air generated by the semiconductor cooling chip inside the cold air box is blown out by the blower mechanism, enters the air outlet plate through the connecting pipe, and exits through the air outlet hole, directly dissipating heat from the circuit board body, resulting in better heat dissipation. Furthermore, by providing clamping mechanisms on the back-to-back surfaces of the two sleeve boxes, this design makes installation and disassembly more convenient and stable. The movement of the pulling plate can move the clamping plate, connecting the connecting plate assembly to the mounting base plate, achieving quick and convenient installation and disassembly. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the disassembled structure of the telescopic rod and the sleeve box in this utility model;

[0017] Figure 3This is a schematic diagram showing the details of the clamping mechanism in this utility model;

[0018] Figure 4 This is a schematic diagram showing the internal structure of the intercooler air box of this utility model;

[0019] Figure 5 This utility model Figure 4 A schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Connecting plate; 2. Circuit board body; 3. Telescopic rod; 4. Sleeve box; 5. Clamping mechanism; 51. Storage box; 52. Pull plate; 53. Clamping plate; 54. Clamping spring; 6. Mounting base plate; 7. Cooling box; 8. Semiconductor cooling chip; 9. Heat sink box; 10. Cold air box; 11. Air outlet plate; 12. Blower mechanism; 121. Air outlet cover; 122. Blower motor; 123. Blower fan blade; 13. Rubber column; 14. Air outlet pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figure 1-5 This utility model provides the following technical solution: a printed circuit board structure, including a connecting plate 1, a circuit board body 2 is fixedly connected to the top surface of the connecting plate 1, a telescopic rod 3 is fixedly connected to the bottom surface of the connecting plate 1, a sleeve box 4 is movably connected to the outer surface of the telescopic rod 3, and a clamping mechanism 5 is provided on the back-to-back side surfaces of the two sleeve boxes 4. The clamping mechanism 5 includes a storage box 51 fixedly connected to the back-to-back side surfaces of the two sleeve boxes 4, a pull plate 52 is provided on one side of the storage box 51, a clamping plate 53 is fixedly connected to the bottom surface of the pull plate 52, a mounting base plate 6 is slidably connected to the bottom end of the sleeve box 4, a cooling box 7 is fixedly connected to the top surface of the mounting base plate 6, a semiconductor cooling chip 8 is fixedly connected to the inner surface of the cooling box 7, a heat sink 9 is fixedly connected to one side surface of the cooling box 7, a cold air box 10 is fixedly connected to the side surface of the cooling box 7 away from the heat sink 9, an air outlet plate 11 is provided above the cold air box 10, and a blower mechanism 12 is provided on one side surface of the cold air box 10 and one side surface of the heat sink 9.

[0024] In use, the connecting plate is connected to the mounting base plate 6 through the clamping mechanism 5 to limit the position of the circuit board body 2. If it is subjected to external force, the rubber column 13 deforms to relieve the impact force, and the telescopic rod 3 retracts into the sleeve box 4, which can play a shockproof role.

[0025] As a preferred technical solution for the printed circuit board structure of this utility model, the top surface of the sleeve box 4 is provided with a groove that matches the structural size of the telescopic rod 3. A rubber column 13 is fixedly connected to the bottom end of the telescopic rod 3, and the end of the rubber column 13 away from the telescopic rod 3 is fixedly connected to the sleeve box 4. When subjected to external force, the telescopic rod 3 falls and squeezes the rubber column 13, thereby relieving the impact force.

[0026] As a preferred technical solution for the printed circuit board structure of this utility model, two storage boxes 51 are respectively snapped and slidably connected to two pull plates 52. A clamping spring 54 is fixedly connected to one side surface of the pull plate 52, and the end of the pull plate 52 away from the clamping spring 54 is fixedly connected to the storage box 51. The clamping plate 53 has an L-shaped vertical cross-section. The mounting base plate 6 has slots on both sides that match the structural dimensions of the clamping plate 53. A pull post is fixedly connected to the top surface of the pull plate 52. The pull post drives the movement of the pull plate 52, which in turn drives the movement of the clamping plate 53. At this time, the clamping spring 54 deforms and generates elastic force. When the clamping plate 53 is aligned with the slots on both sides of the mounting base plate 6, the pull plate 52 is released, and the clamping plate 53 is snapped into the slots on both sides of the mounting base plate 6, connecting the connecting plate 1 to the mounting base plate 6.

[0027] As a preferred technical solution of the printed circuit board structure of this utility model, an air outlet pipe 14 is fixedly connected to the outer surface of the heat dissipation box 9, and a filter screen is fixedly connected to the inner surface of the end of the air outlet pipe 14 away from the heat dissipation box 9; one end of the air outlet pipe 14 is located on the outer surface of the electrical equipment, that is, the air outlet end of the air outlet pipe 14 is away from the connecting plate 1, so as to avoid the exhaust heat from affecting the heat dissipation of the circuit board body 2, and the filter screen prevents external flying insects from entering the air outlet pipe 14.

[0028] Example 2

[0029] Please see Figure 4 and Figure 5 The difference between this embodiment and Embodiment 1 is that:

[0030] The bottom end of the air outlet plate 11 is fixedly connected to the cold air box 10 through a connecting pipe, and an air outlet hole is opened on the top surface of the air outlet plate 11. The blower mechanism 12 includes an air outlet cover 121 fixedly connected to one side surface of the cold air box 10 and one side surface of the heat sink 9. A blower motor 122 is fixedly connected to one side surface of the air outlet cover 121, and a blower fan blade 123 is fixedly connected to the output end of the blower motor 122. The blower fan blade 123 is located in the inner cavity of the air outlet cover 121. There is a gap between the top surface of the air outlet plate 11 and the bottom surface of the connecting plate 1 to ensure the flow of air. When the blower motor 122 is started, it drives the blower fan blade 123 to rotate, blowing the cold air in the cold air box 10 into the air outlet plate 11 through the connecting pipe. The cold air is then blown out from the air outlet hole on the top surface of the air outlet plate 11 to directly dissipate heat on the circuit board body 2.

[0031] It should be noted that, with the help of those skilled in the art, all electrical components in this case, such as the thermoelectric cooler 8 and the blower motor 122, should be connected to their compatible power supplies via wires. Furthermore, a suitable controller, such as a PLC controller or a microcontroller, should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the working principle described below, which outlines the sequential operation of each electrical component to complete the electrical connection. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process, and will not further explain the electrical control.

[0032] The working principle and usage process of this utility model are as follows: When it is necessary to dissipate heat from the circuit board body 2, the semiconductor cooling chip 8 and two blower motors 122 are activated. The activation of the blower motor 122 on one side of the cold air box 10 drives the blower fan blades 123 to rotate, blowing the cold air generated by the semiconductor cooling chip 8 inside the cold air box 10 into the air outlet plate 11 through the connecting pipe. The cold air is then blown out from the air outlet hole on the top surface of the air outlet plate 11, directly dissipating heat from the circuit board body 2. The blower motor 122 on one side of the heat dissipation box 9 blows out the heat generated by the semiconductor cooling chip 8 and discharges it to the outside through the air outlet pipe 14. Furthermore, when it is necessary to disassemble and remove the connecting plate 1 for maintenance of the cooling box 7 assembly, the movement of the pulling plate 52 drives the movement of the clamping plate 53, which separates the clamping plate 53 from the clamping slots on both sides of the mounting base plate 6, making it easy to disassemble and remove the connecting plate 1 assembly.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0034] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A printed circuit board structure, comprising a connecting board (1), characterized in that: The top surface of the connecting plate (1) is fixedly connected to the circuit board body (2), and the bottom surface of the connecting plate (1) is fixedly connected to the telescopic rod (3). The outer surface of the telescopic rod (3) is movably connected to the sleeve box (4). Both sleeve boxes (4) are provided with clamping mechanisms (5) on their opposite sides. The clamping mechanism (5) includes a storage box (51) fixedly connected to the opposite sides of the two sleeve boxes (4). A pull plate (52) is provided on one side of the storage box (51), and a card plate (53) is fixedly connected to the bottom surface of the pull plate (52). The bottom end of the sleeve box (4) is slidably connected to the mounting base plate (6). The top surface of the mounting base plate (6) is fixedly connected to the cooling box (7). The inner surface of the cooling box (7) is fixedly connected to the semiconductor cooling chip (8). The side surface of the cooling box (7) is fixedly connected to the heat sink box (9). The side surface of the cooling box (7) away from the heat sink box (9) is fixedly connected to the cold air box (10). An air outlet plate (11) is provided above the cold air box (10). A blower mechanism (12) is provided on one side surface of the cold air box (10) and one side surface of the heat sink box (9).

2. The printed circuit board structure according to claim 1, characterized in that: The top surface of the sleeve box (4) is provided with a groove that matches the structural dimensions of the telescopic rod (3). A rubber column (13) is fixedly connected to the bottom end of the telescopic rod (3), and the end of the rubber column (13) away from the telescopic rod (3) is fixedly connected to the sleeve box (4).

3. The printed circuit board structure according to claim 1, characterized in that: The two storage boxes (51) are respectively snapped into and slidably connected to the two pull plates (52). A clamping spring (54) is fixedly connected to one side surface of the pull plate (52), and the end of the pull plate (52) away from the clamping spring (54) is fixedly connected to the storage box (51).

4. The printed circuit board structure according to claim 1, characterized in that: The vertical cross-section of the card plate (53) is L-shaped, and the two sides of the mounting base plate (6) are provided with card slots that match the structural dimensions of the card plate (53).

5. A printed circuit board structure according to claim 1, characterized in that: An air outlet pipe (14) is fixedly connected to the outer surface of the heat dissipation box (9), and a filter screen is fixedly connected to the inner surface of the end of the air outlet pipe (14) away from the heat dissipation box (9).

6. A printed circuit board structure according to claim 1, characterized in that: The bottom end of the air outlet plate (11) is fixedly connected to the cold air box (10) through a connecting pipe, and an air outlet hole is provided on the top surface of the air outlet plate (11).

7. A printed circuit board structure according to claim 1, characterized in that: The blower mechanism (12) includes an air outlet cover (121) fixedly connected to one side surface of the cold air box (10) and one side surface of the heat sink box (9). A blower motor (122) is fixedly connected to one side surface of the air outlet cover (121). A blower fan blade (123) is fixedly connected to the output end of the blower motor (122). The blower fan blade (123) is located in the inner cavity of the air outlet cover (121).

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