Fan PCB light bar

Abstract

The utility model relates to the technical field of computer accessories, and particularly discloses a fan PCB light bar, the fan PCB light bar comprises a central PCB and a winding PCB, the central PCB comprises a circular part, the central PCB and the winding PCB are both provided with LED lamps which are used for rendering light atmosphere in a case, the circular part of the central PCB is further connected with an electromagnetic winding, the winding is used for controlling rotation of a fan, and the winding is used for controlling rotation of the fan. Furthermore, the rotating speed of the fan is controlled. A strip-shaped part extends out of a part of the edge of the circular part, the central PCB is electrically connected with the winding PCB through the strip-shaped part, the mode that a plurality of PCBs in a traditional fan are connected through fly wires is abandoned, the quality risk of fly wire welding is avoided, the electric connection is detachable connection, and the electric connection is convenient. And the winding PCB is also provided with a trapezoidal interface, so that the clamping phenomenon in the mounting process of detachable connection is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of computer accessories, and specifically discloses a fan PCB light strip. Background Art

[0002] A fan is a common temperature control device inside a computer case, mainly used for heat dissipation to ensure that a computer or other electronic device maintains a stable temperature during operation. Modern computer case fans usually control the fan speed through a built-in PCB (printed circuit board). This PCB can automatically adjust the fan speed according to the change of the internal temperature of the device, thereby improving the heat dissipation efficiency and reducing noise.

[0003] Through this built-in control system, the fan can provide a more flexible and efficient heat dissipation solution under different working conditions, ensuring the long-term stable operation of the device.

[0004] The built-in PCB boards are usually not just one piece. They can be divided into multiple parts, each responsible for a different function. For example, there will be a dedicated PCB board for controlling the fan speed, while another PCB board may be dedicated to controlling the lighting effects on the fan. These lighting control boards can support RGB lighting effects, enabling the fan to display a rich variety of lighting effects and enhancing the aesthetics and personalization of the entire computer case.

[0005] However, multiple PCB boards are usually connected by flying wires. Although this connection method can effectively reduce production costs, the quality of the flying wire soldering often fluctuates during the processing. This instability may cause problems during product use, such as some LED lights not lighting up, abnormal lighting effects, or the fan speed control malfunctioning.

[0006] The quality fluctuations of flying wire soldering mainly stem from the complexity of the soldering process and the high requirements for precision. If there are slight deviations during the soldering process, the connection of the flying wire may be loose or have poor contact, resulting in unstable electrical signal transmission. This instability will directly affect the function of the PCB board and thus the normal operation of the fan.

[0007] Therefore, although the flying wire connection has its advantages in reducing costs, the quality control of the solder joints often needs to be considered as a key point. Summary of the Utility Model

[0008] In order to solve the problems existing in the prior art, a first aspect of the utility model proposes a fan PCB light strip, which is characterized by including

[0009] a central PCB board, the central PCB strip includes a circular part and a strip part extending from a part of the edge of the circular part;

[0010] The central PCB board is electrically connected to the wound PCB board through the strip-shaped part;

[0011] The wound PCB board is provided with a plurality of LED lights;

[0012] In the first state, the wound PCB board is bent, and one side remains facing the circular part, and the central PCB board controls the brightness of the LED lights.

[0013] In some specific embodiments of the first aspect of the present invention, the electrical connection is a detachable connection, and the detachable connection.

[0014] In some specific embodiments of the first aspect of the present invention, the detachable connection includes an L-shaped pin connected to the wound PCB board, and the L-shaped pin extends into a porous groove located on the wound PCB board.

[0015] In some specific embodiments of the first aspect of the present invention, the wound PCB board is further provided with a trapezoidal notch.

[0016] In some specific embodiments of the first aspect of the present invention, the strip-shaped part is bent during the extension from the circular edge.

[0017] In some specific embodiments of the first aspect of the present invention, the plurality of LED lights are arranged along the long side of the wound PCB board.

[0018] In some specific embodiments of the first aspect of the present invention, the distances between the plurality of LED lights are equal.

[0019] In some specific embodiments of the first aspect of the present invention, the wound PCB board includes an ink layer and a metal circuit layer partially covered by the ink layer. In the first state, the exposed part of the metal circuit layer is located on the side of the wound PCB board facing away from the wound PCB board.

[0020] In some specific embodiments of the first aspect of the present invention, the circular part is provided with LED lights.

[0021] In some specific embodiments of the first aspect of the present invention, the LED lights provided on the circular part are arranged in a circle.

[0022] In some specific embodiments of the first aspect of the present invention, the distances between the LED lights provided on the circular part are equal.

[0023] In some specific embodiments of the first aspect of the present invention, the circular part is provided with a plurality of electromagnetic windings.

[0024] In some specific embodiments of the first aspect of the present invention, the electromagnetic windings are arranged in a circular array.

[0025] In some specific embodiments of the first aspect of the present utility model, a cylinder is further connected to the circular portion, and the electromagnetic winding passes through the cylinder.

[0026] In some specific embodiments of the first aspect of the present utility model, a plurality of electromagnetic windings are provided on the circular portion.

[0027] In some specific embodiments of the first aspect of the present utility model, the electromagnetic windings are arranged in a circular array.

[0028] In some specific embodiments of the first aspect of the present utility model, a cylinder is further connected to the circular portion, and the electromagnetic winding passes through the cylinder.

[0029] In some specific embodiments of the first aspect of the present utility model, the portions of a plurality of the electromagnetic windings passing through the cylinder enclose a middle-through cylinder.

[0030] In some specific embodiments of the first aspect of the present utility model, the portion of the electromagnetic winding close to the wound PCB board forms an arc.

[0031] In some specific embodiments of the first aspect of the present utility model, the central PCB board and the wound PCB board are respectively provided with electrical connection points.

[0032] The second aspect of the present utility model provides a computer fan including the fan PCB light bar described in the first aspect.

[0033] Advantages of the present utility model:

[0034] By reforming the shape of the central PCB board, a strip portion is added to the central PCB board, and this strip portion connects the central PCB board for controlling the fan and the wound PCB board, avoiding the welding quality problems that need to be considered when using flying wires.

[0035] In some embodiments, the connection between the strip portion and the wound PCB board is a detachable connection, and the wound PCB board is provided with a trapezoidal notch to avoid the card position phenomenon during the installation of the detachable connection.

[0036] In some embodiments, the wound PCB board also exposes a metal circuit layer, and this metal circuit layer is electrically connected to the conductive sheet. In the case of multiple fans in parallel, the conductive sheet contacts the electrical connection point of an adjacent another fan to transmit current to the another fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Showing a first-angle view of the present utility model;

[0038] Figure 2 Showing a second-angle view of the present utility model;

[0039] Figure 3 Showing a first-angle view of the installation state of the present utility model;

[0040] Figure 4 Show the second angle view of the installation state of the present utility model;

[0041] Figure 5 Show the exploded view of the present utility model in the installation state;

[0042] Figure 6 Show the installation state diagram of the present utility model;

[0043] Figure 7 Show the electrical connection between computer fans installed with the PCB light strip of the present utility model;

[0044] Figure 8 Show Figure 7 The enlarged view at position A in the figure;

[0045] 1. Fan; 2. Fan bottom plate; 21. Conductive sheet; 22. Positioning cylinder; 23. Support shaft; 3. Central PCB board; 31. Circular part; 311. Strip part; 312. Electromagnetic winding; 313. Cylinder; 314. Porous groove; 32. Winding PCB board; 321. LED lamp; 322. L-shaped pin; 323. Trapezoidal notch; 324. Metal circuit layer; 4. Electrical connection point; 5. Detachable connection structure; Detailed implementation manners

[0046] In order to enable those skilled in the art of the present technology to better understand the solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0047] In the following description, spatial and orientation terms such as "vertical" and "horizontal" may be used to describe the embodiments of the present utility model, but it should be understood that these terms are only for facilitating the description of the embodiments shown in the drawings and do not require the actual device to be constructed or operated in a specific orientation. In the following description, the use of terms such as "connect", "couple", "fix" and "attach" may mean that two elements or structures are directly connected without other elements or structures therebetween, or may mean that two elements or structures are indirectly connected through intermediate elements or structures, unless otherwise clearly stated in this article. The term "transmission connection" means that there is power transmission and the resulting relative movement between two or more elements or structures in a connection relationship.

[0048] In this application, unless otherwise clearly specified or limited, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or integrated; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] Please refer to Figure 1 and Figure 2 , the utility model discloses a fan PCB light strip, including,

[0050] a central PCB board 3, the central PCB board 3 includes a circular part 31, and further includes a strip part 311 extending from a part of the edge of the circular part 31;

[0051] the winding PCB board 32 and the central PCB board 3 include an ink layer and a metal circuit layer 324 partially covered by the ink layer;

[0052] the central PCB board 3 is electrically connected to the winding PCB board 32 through the strip part 311;

[0053] the winding PCB board 32 is provided with a plurality of LED lights 321, through electrical connection, the central PCB board 3 supplies current to the winding PCB board 32 to control the brightness of the LED lights 321.

[0054] In the first state, that is, in the installation state of the fan PCB light strip, the winding PCB board 32 is bent, and one side remains facing the circular part 31.

[0055] In some alternative embodiments, in the installation state of the fan PCB light strip, the winding PCB board 32 is bent, one side remains facing the circular part 31, and abuts against the positioning cylinder 22, and the positioning cylinder 22 is fixedly connected to the fan bottom plate 2.

[0056] In some alternative embodiments, the electrical connection between the central PCB board 3 and the winding PCB board 32 is a detachable connection.

[0057] Preferably, the structure of the detachable connection includes an L-shaped pin 322 connected to the winding PCB board 32, and the L-shaped pin 322 extends into a porous groove 314 located on the winding PCB board 32. When the L-shaped pin 322 extends into the porous groove 314, the central PCB board 3 is electrically connected to the winding PCB board 32.

[0058] In some alternative embodiments, the winding PCB board 32 is further provided with a trapezoidal notch 323.

[0059] In the first state, the trapezoidal notch 323 facilitates the L-shaped pin 322 to extend into the porous groove 314, thereby preventing the L-shaped pin 322 from getting stuck during the extension process.

[0060] In some optional embodiments, the strip portion 311 is bent while extending from the circular edge, so as to increase the bending resistance of the strip portion 311 .

[0061] In some optional embodiments, the plurality of LED lights 321 are arranged along the long side of the PCB board 32.

[0062] Preferably, the plurality of LED lights 321 are spaced at equal intervals.

[0063] This arrangement enables light to be emitted more evenly in the first state, that is, in the fan PCB light strip installation state and in the conductive state wrapped around the PCB board 32, thereby achieving a good atmosphere in the computer case.

[0064] In some optional embodiments, the wrapped PCB board 32 includes an ink layer and a metal circuit layer 324 .

[0065] The metal wiring layer 324 is partially covered by the ink layer, and has an exposed portion that is not covered by the ink layer.

[0066] like Figure 3 , 4 As shown, in the first state, that is, the fan PCB light bar is installed, the exposed portion of the metal circuit layer 324 is located on the side of the wrapped PCB board 32 away from the circular portion 31, and the exposed portion is connected to the conductive sheet 21 for providing current to the conductive sheet 21.

[0067] In some optional embodiments, such as Figure 7 and Figure 8 As shown, two computer fans of the same structure are both equipped with the same fan PCB light strip, and the conductive sheet 21 of one computer fan contacts the electrical connection point 4 of the other computer fan to provide current for the other computer fan.

[0068] In some optional embodiments, the circular portion 31 is provided with an LED light 321 .

[0069] Preferably, the LED lights 321 disposed on the circular portion 31 are arranged in a circle. Further preferably, the LED lights 321 disposed on the circular portion 31 are arranged at equal intervals.

[0070] In some optional embodiments, the circular portion 31 is provided with a plurality of electromagnetic windings 312, such as Figure 5 , 6As shown, the electromagnetic winding 312 is used to drive the fan 1 to rotate around the support shaft 23.

[0071] Preferably, the electromagnetic windings 312 are arranged in a circular array.

[0072] Preferably, the parts of several electromagnetic windings 312 passing through the cylinder 313 enclose a middle-through cylinder.

[0073] Preferably, the part of the electromagnetic winding 312 close to the winding PCB board 32 forms an arc.

[0074] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A fan PCB light bar, characterized in that: include, A central PCB board (3), the central PCB board (3) comprising a circular portion (31) and a strip portion (311) extending from a portion of the edge of the circular portion (31); The central PCB board (3) is electrically connected to the winding PCB board (32) via the strip-shaped portion (311); The winding PCB board (32) is provided with a plurality of LED lights (321); In the first state, the wrapped PCB board (32) is bent, with one side remaining facing the circular portion (31).

2. The fan PCB light strip according to claim 1, characterized in that: The electrical connection is a detachable connection (5), and / or the detachable connection (5) comprises an L-shaped pin (322) connected to the wrapped PCB board (32), and the L-shaped pin (322) extends into a porous groove (314) located on the wrapped PCB board (32).

3. The fan PCB light strip according to any one of claims 1 or 2, characterized in that: The wrapped PCB board (32) is also provided with a trapezoidal notch (323).

4. The fan PCB light strip according to any one of claims 1 to 3, characterized in that: The strip-shaped portion (311) bends during the process of extending from the edge of the circular portion (31).

5. The fan PCB light strip according to any one of claims 1 to 4, characterized in that: The plurality of LED lamps (321) are arranged along the long side of the wound PCB board (32).

6. The fan PCB light strip according to claim 5, characterized in that: The plurality of LED lights (321) arranged along the long side of the wound PCB board (32) are arranged at equal intervals.

7. The fan PCB light strip according to any one of claims 1 to 6, characterized in that: The wrapped PCB board (32) comprises an ink layer and a metal circuit layer (324) partially covered by the ink layer. In a first state, the exposed portion of the metal circuit layer (324) is located on a side of the wrapped PCB board (32) that is away from the circular portion (31).

8. The fan PCB light strip according to any one of claims 1 to 7, characterized in that: The circular portion (31) is provided with an LED lamp (321), and / or the LED lamps (321) provided on the circular portion (31) are arranged circumferentially, and / or the LED lamps (321) provided on the circular portion (31) are arranged at equal intervals.

9. The fan PCB light strip according to any one of claims 1 to 8, characterized in that: The circular portion (31) is provided with a plurality of electromagnetic windings (312), and / or the electromagnetic windings (312) are arranged in a ring array, and / or the circular portion (31) is further connected to a cylinder (313), the electromagnetic winding (312) passes through the cylinder (313), and / or the portions of the plurality of electromagnetic windings (312) passing through the cylinder (313) form a ring, and / or the electromagnetic winding (312) forms an arc near the portion wound around the PCB board (32).

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