Controller
By employing a multi-layered limiting structure in the chassis fan controller, consisting of a connecting plate, bayonet, top connecting post, and nut for fixation, the problem of circuit defects caused by aging solder joints is solved, improving the controller's stability and heat dissipation effect, and enabling diverse fan control and lighting adjustment functions.
Patent Information
- Application Number
- CN202520637707.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-07
AI Technical Summary
Existing controllers used for chassis fans are prone to aging, loosening, or breakage of solder joints under long-term operation and temperature fluctuations, resulting in poor circuit contact, affecting heat dissipation and the stability and reliability of the controller.
The structure employs a combination of connecting plates and bayonets, top connecting columns and bottom connecting columns, and is secured with nuts to form a multi-layered limiting structure. This ensures a stable connection between the top cover, circuit board and bottom shell, and absorbs internal heat through heat dissipation channels to maintain a stable operating temperature.
It improves the stability and reliability of the controller, avoids the problems of aging and loosening of solder joints, extends the service life, and enhances the connection strength and heat dissipation effect under various working conditions, meeting diverse fan control and lighting adjustment needs.
Smart Images

Figure CN223941328U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of controller technology, specifically relating to a controller for chassis fans. Background Technology
[0002] In computer use, chassis fans are a crucial component for heat dissipation. However, in the design and manufacturing of existing chassis fan controllers, the connection between the circuit board and various components often uses traditional soldering methods. While this ensures electrical continuity between the components and the circuit board, with prolonged operation and temperature fluctuations, the solder joints gradually age, loosen, or even break. This can directly lead to poor circuit contact and cause circuit malfunctions, resulting in the controller failing to function properly. For example, it may fail to accurately control the fan speed, leading to poor heat dissipation; or the controller may become slow and unable to respond promptly to temperature changes.
[0003] Therefore, a more stable and reliable connection scheme is designed for the installation of various components in the controller. Utility Model Content
[0004] The purpose of this invention is to provide a controller to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a controller, comprising a bottom shell and a top cover, wherein a circuit board is installed inside the bottom shell, and connecting plates are provided at the four corners of the top of the bottom shell, with slots opened on the inner side of the connecting plates; recesses are provided at the four corners of the top cover, with inclined locking blocks provided in the recesses; multiple bottom connecting posts are provided at the top of the bottom shell, with mounting grooves at the top of the bottom connecting posts, and first connecting holes provided in the mounting grooves; multiple second connecting holes are opened at the top of the circuit board; and multiple top connecting posts are provided at the bottom of the top cover, with third connecting holes opened in the top connecting posts.
[0006] Preferably, the bottom shell has a first partition on the front and rear sides of the top, and a plurality of second partitions are connected between the outer side of the first partition and the front and rear sides of the bottom shell, forming a plurality of DIY assembly ports between the first partition and each of the second partitions.
[0007] Preferably, the circuit board is provided with an ARGB interface and a PWM interface, which are intermittently arranged in the DIY assembly port.
[0008] Preferably, the top cover has a third partition and a fourth partition on both the front and rear sides of its bottom.
[0009] Preferably, the bottom shell has three support plates on its top, and a heat dissipation channel is provided between the support plates and the first partition.
[0010] Preferably, the bottom shell has a recessed power supply mounting port on the left side, and the circuit board has a SATA power supply interface located inside the power supply mounting port.
[0011] Preferably, the bottom shell has a recessed I / O assembly port on the right side, and the circuit board has a USB interface, an ARGB synchronization interface and a PWM synchronization interface, which are located inside the I / O assembly port.
[0012] Preferably, the circuit board is further provided with LED beads, and the upper cover is fixedly installed with a light-transmitting plate, with the LED beads located below the light-transmitting plate.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This utility model achieves a stable connection between the top cover, circuit board and bottom shell through the cooperation of the connecting plate and the bayonet, the top connecting post and the bottom connecting post, and the fixing of the nut. It effectively avoids the problem of aging, loosening or even breakage of the welding points caused by long-term operation and temperature fluctuations, and improves the stability and reliability of the controller.
[0015] This utility model has a multi-layer limiting structure, such as the fitting of the connecting plate and the bayonet, and the top connecting column passing through the second connecting hole and being inserted into the mounting groove, which further enhances the connection strength between the components and ensures that a stable connection state can be maintained under various working conditions.
[0016] This invention also includes a heat dissipation channel through which air circulates, absorbing and carrying away the heat generated inside the controller, thus maintaining the controller within a relatively stable and suitable operating temperature range, avoiding circuit failures caused by excessive temperature, and extending the lifespan of the controller.
[0017] The support plate and partition provided in this utility model not only provide support for the circuit board, but also further optimize the internal layout of the controller;
[0018] This utility model is equipped with multiple interfaces, such as ARGB interface, PWM interface, USB interface, ARGB synchronization interface and PWM synchronization interface, which meet the diverse needs of users for fan speed control, light strip color and brightness adjustment and communication with computer motherboard, and improve the practicality and flexibility of the controller. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is another perspective view of the present invention;
[0021] Figure 3 This is an exploded view of the present invention;
[0022] Figure 4 This is a partial exploded view of the present invention;
[0023] Figure 5 This is a schematic diagram of the circuit board structure in this utility model.
[0024] Numbering in the diagram: 1-Bottom shell, 2-Top cover, 3-Circuit board, 4-Connecting plate, 5-Bayonet, 6-Notch, 7-Slanted locking block, 8-Bottom connecting post, 9-Mounting slot, 10-First connecting hole, 11-Second connecting hole, 12-Top connecting post, 13-Third connecting hole, 14-Support plate, 15-First partition, 16-Second partition, 17-DIY assembly port, 171-ARGB interface, 172-PWM interface, 18-Third partition, 19-Fourth partition, 20-Heat dissipation channel, 21-Power supply assembly port, 211-SATA power supply interface, 22-IO assembly port, 221-USB interface, 222-ARGB synchronization interface, 223-PWM synchronization interface, 23-LED beads, 24-Light-transmitting plate. Detailed Implementation
[0025] 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.
[0026] Example 1
[0027] like Figures 1 to 5The controller shown includes a bottom shell 1 and a top cover 2. A circuit board 3 is installed inside the bottom shell 1. Connecting plates 4 are provided at the four corners of the top of the bottom shell 1, and the inner side of the connecting plates 4 has a snap-fit 5. The four corners of the top cover 2 have recesses 6, and the recesses 6 have inclined snap-fit blocks 7. The top of the bottom shell 1 has multiple bottom connecting posts 8, and the top of the bottom connecting posts 8 has a mounting groove 9. The mounting groove 9 has a first connecting hole 10. The top of the circuit board 3 has multiple second connecting holes 11. The bottom of the top cover 2 has multiple top connecting posts 12, and the top connecting posts 12 have a third connecting hole 13. The front and rear sides of the top of the bottom shell 1 have first partitions 15. Multiple second partitions 16 are connected between the outer side of the first partitions 15 and the front and rear sides of the bottom shell 1, forming multiple DIY assembly ports 17 between the first partitions 15 and each of the second partitions 16. The circuit board 3 has an ARGB interface 171 and a PWM interface 172. Interfaces 71 and PWM 172 are intermittently located within the DIY assembly port 17; the top cover 2 has a third partition 18 and a fourth partition 19 on both the front and rear sides of its bottom; the bottom shell 1 has three support plates 14 on its top, and a heat dissipation channel 20 is provided between the support plates 14 and the first partition 15; the bottom shell 1 has a recessed power assembly port 21 on its left side, and a SATA power interface 211 is provided on the circuit board 3, which is located within the power assembly port 21; the bottom shell 1 has a recessed IO assembly port 22 on its right side, and a USB interface 221, an ARGB synchronization interface 222, and a PWM synchronization interface 223 are provided on the circuit board 3, which are located within the IO assembly port 22; the circuit board 3 also has LED beads 23, and a light-transmitting plate 24 is fixedly installed on the top cover 2, with the LED beads 23 located below the light-transmitting plate 24.
[0028] This invention achieves a stable connection between the upper cover 2, circuit board 3, and bottom shell 1 through the cooperation of the connecting plate 4 and the bayonet 5, the top connecting post 12 and the bottom connecting post 8, and the fixing of the nut. This effectively avoids the problems of aging, loosening, or even breakage of the welding points caused by long-term operation and temperature fluctuations, thus improving the stability and reliability of the controller. This invention features a multi-layer limiting structure, such as the fitting of the connecting plate 4 and the bayonet 5, and the top connecting post 12 penetrating the second connecting hole 11 and inserting into the mounting groove 9, further enhancing the connection strength between the components and ensuring a stable connection under various operating conditions. This invention also includes a heat dissipation channel 20, through which air circulates, absorbing and carrying away air. The heat generated inside the controller keeps it within a relatively stable and suitable operating temperature range, preventing circuit failures caused by overheating and extending the controller's lifespan. The support plate 14 and partition in this invention not only provide support for the circuit board 3 but also further optimize the internal layout of the controller. This invention features multiple interfaces, such as an ARGB interface 171, a PWM interface 172, a USB interface 221, an ARGB synchronization interface 222, and a PWM synchronization interface 223, meeting diverse user needs for fan speed control, LED strip color and brightness adjustment, and communication with the computer motherboard, thus enhancing the controller's practicality and flexibility.
[0029] Example 2
[0030] like Figures 1 to 5 The controller shown includes a bottom shell 1 and a top cover 2. A circuit board 3 is installed inside the bottom shell 1, that is, the circuit board 3 is located between the bottom shell 1 and the top cover 2. In this embodiment, in order to achieve stable installation and support operation of its internal panels, a multi-layer limiting structure is set, specifically:
[0031] The bottom shell 1 has connecting plates 4 at the four corners of its top. The connecting plates 4 have slots 5 on their inner sides. The slots 5 are lower than the connecting plates 4. The top cover 2 conforms to the shape of the connecting plates 4. It has recesses 6 at its four corners. The recesses 6 have inclined blocks 7. The inclined design allows the inclined blocks 7 to slide more easily into the slots 5 when the top cover 2 is closed with the bottom shell 1. At this time, the connecting plates 4 and the recesses are fitted together, and the inclined blocks 7 and the slots 5 are locked together to ensure that the top cover 2 and the bottom shell 1 are stably connected together.
[0032] The bottom shell 1 has four bottom connecting posts 8 on its top, and each bottom connecting post 8 has a mounting groove 9 on its top. The mounting groove 9 has a first connecting hole 10 inside. The dimensions of the bottom connecting posts 8, mounting groove 9, and first connecting hole 10 are arranged from largest to smallest. The circuit board 3 has four second connecting holes 11 below each of the bottom connecting posts 8. The bottom of the top cover 2 has four top connecting posts 12 above each of the second connecting holes 11. Each top connecting post 12 has a third connecting hole 13 inside. It can be understood that when the top cover 2 is closed with the bottom shell 1, the top connecting posts 12 at the bottom of the top cover 2 can be inserted downward through the second connecting holes 11 to limit the circuit board 3. Then, the top connecting posts 12 continue to move downward and are inserted into the mounting groove 9. The nuts are then rotated upward through the first connecting holes 10 at the bottom of the bottom shell 1 to enter the third connecting holes 13 to complete the fixation between the three parts. The outer diameter of the top connecting post 12 is the same as the inner diameter of the second connecting hole 11 and the inner diameter of the mounting groove 9; at the same time, the diameters of the first connecting hole 10 and the third connecting hole 13 are the same.
[0033] The above achieves a stable connection between the top cover 2, the circuit board 3, and the bottom shell 1.
[0034] Example 3
[0035] like Figures 1 to 5 The controller shown further includes multiple modules on circuit board 3, including:
[0036] The circuit board 3 has multiple ARGB interfaces 171 and PWM interfaces 172 on both the front and back sides. The number of ARGB interfaces 171 and PWM interfaces 172 are equal and alternately arranged. Thus, each PWM interface 172 has a corresponding ARGB interface 171 to its right, facilitating pairing and connection of the fan and its accompanying LED strip. The fan speed is primarily controlled via the PWM interface 172, while the LED strip color and brightness are adjusted via the ARGB interface 171. Specifically, when the fan speed increases, the controller can adjust the LED strip to a brighter color or change the flashing frequency to enhance the visual effect.
[0037] The bottom shell 1 has a recessed power supply mounting port 21 on the left side, and the circuit board 3 has a SATA power supply interface 211. The SATA power supply interface 211 is located inside the power supply mounting port 21 and is used to provide a stable power supply to the controller.
[0038] The bottom shell 1 has a recessed I / O mounting port 22 on its right side. The circuit board 3 has a USB interface 221, an ARGB synchronization interface 222, and a PWM synchronization interface 223, all located within the I / O mounting port 22. The USB interface 221 communicates with the computer motherboard, allowing the user to set and save the controller parameters via computer software. The controller then controls the PWM interface 172 and the ARGB interface 171 based on these parameters, ultimately adjusting the light flashing pattern and fan speed. The ARGB synchronization interface 222 communicates with the ARGB pin of the computer motherboard, while the PWM synchronization interface 223 communicates with the FAN pin. The configuration of the ARGB synchronization interface 222 and the PWM synchronization interface 223 enables the controller to receive control signals from the computer motherboard for the lights and fans. The controller then controls the PWM interface 172 and the ARGB interface 171 based on these signals, achieving synchronization with the lights and fans controlled by the computer motherboard.
[0039] To address the above, this embodiment also includes multiple partitions for the stable installation and support of each interface. First partitions 15 are provided on the front and rear sides of the top of the bottom shell 1. The left side of each first partition 15 is connected to an adjacent mounting plate. Seven second partitions 16 are connected between the outer side of each first partition 15 and the front and rear sides of the bottom shell 1, forming eight DIY assembly ports 17 between each first partition 15 and the seven connected second partitions 16. These DIY assembly ports 17 are used to install the ARGB interface 171 and the PWM interface 172. Correspondingly, third partitions 18 and fourth partitions 19 are symmetrically and alternately arranged on the bottom of the top cover 2. The third partition 18 cooperates with the DIY assembly ports 17 to protect the ARGB interface 171, and the fourth partition 19 cooperates with the DIY assembly ports 17 to protect the PWM interface 172.
[0040] Example 4
[0041] like Figures 1 to 5 The controller shown further includes three support plates 14 located on the top of the bottom shell 1 below the circuit board 3. The support plates 14 are two short ones sandwiching one long one, and four heat dissipation channels 20 are formed between the first partition 15 and the support plates 14. Air flows through the heat dissipation channels 20, which can absorb and carry away the heat generated inside, so that the controller is maintained in a relatively stable and suitable operating temperature range.
[0042] Furthermore, the circuit board 3 is also equipped with LED beads 23, and a light-transmitting plate 24 is fixedly installed on the upper shell. The LED beads 23 are located below the light-transmitting plate 24. When the LED beads 23 are lit, they can be emitted to the outside through the light-transmitting plate 24, so that the controller body can be harmoniously integrated into the internal layout of the chassis and improve the overall aesthetics of the chassis.
[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0044] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.
Claims
1. A controller, comprising a bottom housing and a top cover, wherein a circuit board is mounted inside the bottom housing, characterized in that, The bottom shell has connecting plates at its four top corners, with slots on the inner side of the connecting plates. The top cover has recesses at its four corners, with inclined blocks inside the recesses. The bottom shell has multiple bottom connecting posts at its top, with mounting grooves at the top of the bottom connecting posts and first connecting holes inside the mounting grooves. The circuit board has multiple second connecting holes at its top, and the top cover has multiple top connecting posts at its bottom, with third connecting holes inside the top connecting posts.
2. The controller according to claim 1, characterized in that, The bottom shell has a first partition on the front and rear sides of the top. Multiple second partitions are connected between the outer side of the first partition and the front and rear sides of the bottom shell. Multiple DIY assembly ports are formed between the first partition and each of the second partitions.
3. A controller according to claim 2, characterized in that, The circuit board is equipped with an ARGB interface and a PWM interface, which are intermittently located within the DIY assembly port.
4. A controller according to claim 1, characterized in that, The top cover has a third partition and a fourth partition on both the front and rear sides of its bottom.
5. A controller according to claim 2, characterized in that, The bottom shell has three support plates on top, and a heat dissipation channel is provided between the support plates and the first partition.
6. A controller according to claim 1, characterized in that, The bottom shell has a recessed power supply mounting port on its left side, and the circuit board has a SATA power supply interface located inside the power supply mounting port.
7. A controller according to claim 1, characterized in that, The bottom shell has a recessed I / O assembly port on the right side. The circuit board has a USB interface, an ARGB synchronization interface, and a PWM synchronization interface, which are located inside the I / O assembly port.
8. A controller according to claim 1, characterized in that, The circuit board is also equipped with LED beads, and a light-transmitting plate is fixedly installed on the top cover, with the LED beads located below the light-transmitting plate.