Expansion circuit board

Abstract

The utility model relates to the technical field of circuit boards, and discloses an expanded circuit board which comprises a circuit board body, an air box is bonded to the top side of the circuit board body, the rear side of the air box is fixedly communicated with an air pump, a plurality of conical grooves are formed in the bottom side of the air box, a plurality of conical air pipes are rotationally connected to the bottom side of the air box, and the conical air pipes are arranged in the conical grooves. The conical air pipes are arranged, the air box is bonded to the top side of the circuit board body, at the moment, the conical air pipes are located above the connector of the circuit board body, the air pump pumps air into the air box and sprays the air to the connector of the circuit board body from the conical air pipes at the same time, and therefore the cooling and heat dissipation effects are achieved; according to the technical scheme, the multiple fans are used for heat dissipation, the heat dissipation coverage area can be effectively increased, meanwhile, installation structures can be reduced, redundant circuit connection can be avoided, the production cost can be reduced, damage to the circuit board body can be avoided, and application and popularization are facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of circuit boards, and in particular to an expansion circuit board. Background Art

[0002] Circuit boards are known by various names, including 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, and printed (copper etching technology) circuit boards. Circuit boards miniaturize and visualize circuits, playing a vital role in the mass production of fixed circuits and optimizing the layout of electrical appliances. Circuit boards can be called printed circuit boards (PCBs), flexible printed circuit boards (FPCs), and rigid-flex boards (reechas). The emergence and development of FPCs and PCBs gave rise to the new rigid-flex board product. Therefore, a rigid-flex board is a circuit board with both FPC and PCB characteristics formed by combining a flexible circuit board and a rigid circuit board through processes such as pressing and other processes according to relevant process requirements.

[0003] Patent document No. CN218830755U discloses an expansion interface circuit board, comprising a circuit board body and a switch body. Interface A is fixedly connected to one side of the bottom of the circuit board body, and interface B is fixedly connected to the other side of the bottom of the circuit board body. The upper surface of the circuit board body is threadedly connected to connecting plate A via bolts. One side of connecting plate A is fixedly connected to connecting plate B via an adjustment assembly. The upper surface of connecting plate B is fixedly connected to a fan. A slide groove is provided on one side of the fan, and the switch body is slidably connected to the interior of the slide groove. Connecting blocks C are fixedly connected to both sides of the circuit board body. This expansion interface circuit board can adjust the angle of the fan according to user needs through the setting of the adjustment assembly, making it easier for users to use and improving convenience. The setting of the fan can dissipate heat from the interface to avoid heating caused by long-term use and affecting user use.

[0004] In the above-mentioned patent document, although the use of multiple fans has the effect of heat dissipation, it will increase the number of installation structures and line connections, thereby increasing production costs. At the same time, the fans are connected by bolts, which requires holes to be opened on the circuit board. This will cause permanent damage to the circuit board body, which is not conducive to promotion and use.

[0005] Therefore, those skilled in the art provide an expansion circuit board to solve the problems raised in the above background technology. Utility Model Content

[0006] In order to solve the problem that the application of multiple fans proposed in the above background technology has the effect of heat dissipation, but it will add more installation structures and line connections, thereby increasing production costs. At the same time, the fans are connected by bolts, which requires holes to be opened on the circuit board, and this will cause permanent damage to the circuit board body, which is not conducive to promotion and use, the present application provides an expansion circuit board.

[0007] An expanded circuit board provided in the present application adopts the following technical solution: it includes a circuit board body, an air box is bonded to the top side of the circuit board body, the rear side of the air box is fixedly connected to an air pump, a plurality of conical grooves are opened on the bottom side of the air box, and a plurality of conical air pipes are rotatably connected to the bottom side of the air box, and the plurality of conical air pipes are respectively located inside the plurality of conical grooves and the bottom sides of the two are at the same height.

[0008] Preferably, the outer sides of the plurality of conical air tubes are fixedly connected with a plurality of arc-shaped leaves, and the plurality of arc-shaped leaves are located inside the air box.

[0009] Preferably, the left and right sides of the air box are rotatably connected with screws, the outer sides of the two screws are spirally sleeved with L-shaped clamps, and the bottom inner walls of the two L-shaped clamps are at the same height as the bottom side of the circuit board body.

[0010] Preferably, the left and right sides of the air box are fixedly connected with square rods, and the two L-shaped clamping plates are respectively slidably connected to the two square rods.

[0011] Preferably, a plug hole is provided on the top side of the gas box, and a filter plate is inserted into the inner wall of the plug hole.

[0012] In summary, this application has the following beneficial technical effects:

[0013] 1. By setting a conical air tube, the air box is bonded to the top side of the circuit board body. At this time, the conical air tube is located above the interface of the circuit board body. The air pump pumps air into the air box and sprays it toward the interface of the circuit board body from multiple conical air tubes at the same time, thereby achieving a cooling and heat dissipation effect. Compared with the comparative document, the use of multiple fans for heat dissipation can effectively increase the heat dissipation coverage area, and at the same time can reduce the installation structure to avoid unnecessary line connections, thereby reducing production costs, and also avoiding damage to the circuit board body, which is conducive to promotion and use.

[0014] 2. By setting up the curved leaves, when air is pumped into the air box, the circulating airflow impacts the curved leaves, so that the curved leaves can drive the conical air pipe to rotate. At this time, the conical air pipe sprays air while rotating, which can further improve the coverage of the jet heat dissipation and cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic top-sectional structural diagram of an expansion circuit board in an embodiment of the present application;

[0016] Figure 2 This is a schematic diagram of a bottom-sectional structure of an expansion circuit board in an embodiment of the present application;

[0017] Figure 3 This is an expansion circuit board in the embodiment of the present application. Figure 2 Schematic diagram of the structure with part A enlarged.

[0018] Explanation of the accompanying reference numerals: 1. circuit board body; 2. air box; 3. air pump; 4. conical air pipe; 5. arc-shaped leaf; 6. screw; 7. L-shaped splint; 8. square rod; 9. filter plate. DETAILED DESCRIPTION

[0019] The following will be combined with the Figure 1-3 The technical solution of the present invention is clearly and completely described. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0020] The embodiment of the present application discloses an expansion circuit board, referring to Figure 1-3 , including a circuit board body 1, an air box 2 is bonded to the top side of the circuit board body 1, and an air pump 3 is fixedly connected to the rear side of the air box 2. A plurality of conical grooves are opened on the bottom side of the air box 2, and a plurality of conical air pipes 4 are rotatably connected to the bottom side of the air box 2. The plurality of conical air pipes 4 are respectively located inside the plurality of conical grooves and the bottom sides of the two are at the same height; by setting the conical air pipes 4, the air box 2 is bonded to the top side of the circuit board body 1, and at this time the conical air pipes 4 are located above the interface of the circuit board body 1, and the air pump 3 pumps air into the air box 2 and simultaneously sprays air from the plurality of conical air pipes 4 to the interface of the circuit board body 1, thereby achieving a cooling and heat dissipation effect. Compared with the comparative document, the method of using multiple fans for heat dissipation can effectively increase the heat dissipation coverage area, and at the same time can reduce the installation structure to avoid unnecessary line connections, thereby reducing production costs, and also avoiding damage to the circuit board body 1, which is conducive to popularization and use.

[0021] In the present application, multiple arc-shaped leaves 5 are fixedly connected to the outer sides of multiple conical air tubes 4, and multiple arc-shaped leaves 5 are all located inside the air box 2; by setting the arc-shaped leaves 5, when air is pumped into the air box 2, the circulating airflow impacts the arc-shaped leaves 5, so that the arc-shaped leaves 5 can drive the conical air tubes 4 to rotate. At this time, the conical air tubes 4 spray out air while rotating, which can further improve the coverage range of the jet heat dissipation and cooling.

[0022] In the present application, the left and right sides of the air box 2 are rotatably connected with screws 6, and the outer sides of the two screws 6 are spirally sleeved with L-shaped clamps 7, and the bottom inner walls of the two L-shaped clamps 7 are at the same height as the bottom side of the circuit board body 1; by setting the L-shaped clamps 7, when the air box 2 is bonded to the top side of the circuit board body 1, the two screws 6 are turned, and the two screws 6 respectively drive the two L-shaped clamps 7 to gradually approach the circuit board body 1. At this time, the two L-shaped clamps 7 cooperate with each other to clamp and fix the left and right sides of the circuit board body 1, thereby further improving the stability of the air box 2 when placed and avoiding falling off.

[0023] In the present application, square rods 8 are fixedly connected to the left and right sides of the air box 2, and two L-shaped splints 7 are slidably connected to the two square rods 8 respectively; by setting the square rods 8, when the L-shaped splint 7 moves, the square rods 8 can limit it, thereby preventing the L-shaped splint 7 and the screw 6 from rotating, and at the same time, the L-shaped splint 7 can maintain horizontal straight line movement to avoid offset.

[0024] In the present application, a socket is provided on the top side of the air box 2, and a filter plate 9 is connected to the inner wall of the socket; by setting the filter plate 9, when air is pumped into the air box 2, the filter plate 9 will filter the pumped air, thereby filtering out dust in the air, preventing dust from being blown into the interface on the circuit board body 1 during heat dissipation, thereby reducing its service life, thereby achieving a certain protection effect.

[0025] The standard parts used in this utility model can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0026] The implementation principle of an expanded circuit board in an embodiment of the present application is as follows: when in use, the air box 2 is bonded to the top side of the circuit board body 1. At this time, the conical air tube 4 is located above the interface of the circuit board body 1. The air pump 3 pumps air into the air box 2 and sprays it from multiple conical air tubes 4 to the interface of the circuit board body 1 at the same time, thereby achieving a cooling and heat dissipation effect. Compared with the comparative document, the method of using multiple fans for heat dissipation can effectively increase the coverage area of ​​heat dissipation, and at the same time can reduce the installation structure to avoid unnecessary line connections, thereby reducing production costs, and also avoiding damage to the circuit board body 1, which is conducive to promotion and use. When air is pumped into the air box 2, the circulating airflow impacts the arc leaves 5, so that the arc leaves 5 can drive the conical air tube 4 to rotate. At this time, the conical air tube 4 sprays air while rotating, which can further improve the jet The coverage of heat dissipation and cooling, when the air box 2 is bonded to the top side of the circuit board body 1, the two screws 6 are turned, and the two screws 6 respectively drive the two L-shaped clamps 7 to gradually approach the circuit board body 1. At this time, the two L-shaped clamps 7 cooperate with each other to clamp and fix the left and right sides of the circuit board body 1, thereby further improving the stability of the air box 2 when placed to avoid falling off. When the L-shaped clamp 7 moves, the square rod 8 can limit it, thereby avoiding the L-shaped clamp 7 and the screw 6 from rotating, and at the same time, the L-shaped clamp 7 can maintain horizontal and straight movement to avoid offset. When air is pumped into the air box 2, the filter plate 9 will filter the pumped air, thereby filtering out dust in the air, avoiding dust from being blown into the interface on the circuit board body 1 during heat dissipation, resulting in a reduction in its service life, thereby achieving a certain protection effect.

[0027] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0028] Secondly: The drawings of the disclosed embodiments of the present invention only involve structures related to the disclosed embodiments. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. An expansion circuit board, comprising a circuit board body (1), characterized in that: An air box (2) is bonded to the top side of the circuit board body (1), an air pump (3) is fixedly connected to the rear side of the air box (2), a plurality of conical grooves are provided on the bottom side of the air box (2), a plurality of conical air pipes (4) are rotatably connected to the bottom side of the air box (2), and the plurality of conical air pipes (4) are respectively located inside the plurality of conical grooves and the bottom sides of the two are at the same height.

2. The expansion circuit board according to claim 1, characterized in that: The outer sides of the plurality of conical air tubes (4) are all fixedly connected with a plurality of arc-shaped leaves (5), and the plurality of arc-shaped leaves (5) are all located inside the air box (2).

3. The expansion circuit board according to claim 1, wherein: The left and right sides of the air box (2) are both rotatably connected with screw rods (6), and the outer sides of the two screw rods (6) are both spirally driven and sleeved with L-shaped clamping plates (7), and the bottom inner walls of the two L-shaped clamping plates (7) are at the same height as the bottom side of the circuit board body (1).

4. The expansion circuit board according to claim 3, wherein: The left and right sides of the air box (2) are both fixedly connected with square rods (8), and the two L-shaped clamping plates (7) are respectively slidably sleeved with the two square rods (8).

5. The expansion circuit board according to claim 1, wherein: The top side of the gas box (2) is provided with an insertion hole, and the inner wall of the insertion hole is plugged with a filter plate (9).

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