Plug-in fan case

Abstract

The utility model provides a kind of plug-in fan case, it is related to electronic device heat dissipation technical field.The case includes backplate, power module and fan module;Backplate is printed with circuit, circuit extends to the first end and the second end opposite of backplate;Fan module is located at the first end of backplate;Power module is located at the second end of backplate, and fan module is electrically connected to power module by printed circuit on backplate.The utility model replaces transmission wire by the circuit printed on backplate, constructs stable distributed power supply network, so that power module fan module and the electronic component in intermediate area are electrically connected.This design avoids the risk of outer skin damage and short circuit due to limited space during threading and crimping process, significantly improves the power safety of case, and improves assembly efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of heat dissipation technology for electronic devices, and in particular relates to a plug-in fan chassis. Background Technology

[0002] The computer case is a crucial component of computers and other electronic devices, housing various electronic components such as the motherboard, power supply, and hard drive. These components continuously generate heat during operation. If this heat cannot be dissipated effectively, the internal temperature of the case will rise, potentially affecting the performance stability and lifespan of the electronic components, and in severe cases, even causing equipment malfunction. To improve heat dissipation from the case, a fan module is necessary.

[0003] In existing technologies, fan modules typically use wires to connect to the battery. These wires are usually crimped into cable trays at the bottom of the chassis; due to space constraints, their outer sheaths are easily scratched, potentially causing short circuits. Furthermore, the wires may be damaged during the connection process due to threading or crimping operations.

[0004] During the production and assembly process, each wire needs to be laid flat and ensured to be flush against the bottom surface without sticking up. This results in low overall efficiency and high labor costs. Furthermore, the inefficient placement of the power supply module and fan module within the chassis prevents proper heat dissipation for the power supply module and other components inside the chassis. Utility Model Content

[0005] In view of this, the present invention provides a plug-in fan chassis, which aims to solve the problems of short circuits, low assembly efficiency and poor heat dissipation caused by connecting the fan module and the power module with wires in the prior art, so as to improve the safety, ease of assembly and heat dissipation performance of the chassis.

[0006] The technical solution of this utility model is implemented as follows:

[0007] This utility model provides a plug-in fan chassis, including a back panel, a power module, and a fan module; the back panel is printed with circuits that extend to a first end and a second end of the back panel respectively; the fan module is located at the first end of the back panel; the power module is located at the second end of the back panel, and the fan module is electrically connected to the power module through the printed circuits on the back panel.

[0008] In one embodiment, the fan module has a first connector on its end face facing the backplate, and the first end of the backplate has a second connector. The first connector is used to plug into the second connector so that the fan module is electrically connected to the wiring on the backplate.

[0009] In one embodiment, two fan modules are provided, and the two fan modules are respectively located on both sides of the first end of the back plate; and / or, the bottom of the power module is spaced apart from the bottom wall of the chassis, so that the power module is suspended relative to the bottom wall of the chassis.

[0010] In one embodiment, the top and / or bottom of the chassis are provided with guide rails that extend along the thickness direction of the back plate, and the fan module is slidably connected to the guide rails along the thickness direction of the back plate; the plug-in ends of the first connector and the second connector are both facing the thickness direction of the back plate.

[0011] In one embodiment, the two opposite edges of the guide rail along its length are bent inward to form edging; the width of the fan module is adapted to the spacing between the two edgings so as to be slidably connected between the two edgings.

[0012] In one embodiment, a guide pin is provided at the first end of the back plate, the guide pin extending along the thickness direction of the back plate; the control board of the fan module has a guide sleeve extending along the thickness direction of the back plate, and the guide pin extends into the guide sleeve.

[0013] In one embodiment, the fan module includes: a control board having a first connector and a plurality of mating connectors, the first connector and each of the mating connectors being electrically connected; and a fan assembly including a fan housing and a plurality of fans disposed within the fan housing, each of the fans being correspondingly connected to each of the mating connectors via wires; wherein the control board is disposed within the fan housing.

[0014] In one embodiment, a first receiving groove is formed on the outer side of the fan cover, and a clearance hole is provided in the first receiving groove facing the side wall of the back plate; in the thickness direction of the back plate, the first connector is provided protruding from the edge of the control plate; the control plate is disposed in the first receiving groove, and the first connector extends out of the fan cover through the clearance hole.

[0015] In one embodiment, the fan assembly further includes: a dust filter removably disposed on the outside of the fan cover; and a baffle hinged to the fan cover via a pivot, the baffle being rotatable about the pivot to press and fix the dust filter to the fan cover or to release the dust filter from the fan cover; wherein the fan cover has a fan hole for the fan to rotate and exhaust air, the dust filter at least partially corresponds to the fan hole, and the baffle has an air outlet corresponding to the fan hole.

[0016] In one embodiment, a second receiving groove is formed on the outer side of the fan cover, and the dustproof net is removably disposed in the second receiving groove; the baffle is hinged to the edge of the second receiving groove and can close or open the opening of the second receiving groove during rotation; a reinforcing rib is provided on the inner side of the baffle, and the reinforcing rib is used to press against the dustproof net.

[0017] This invention replaces traditional wires with printed circuitry on the backplate, constructing a stable distributed power supply network that enables electrical connections between the power module, fan module, and electronic components in the central area. This design avoids the risk of wire insulation damage and short circuits caused by space constraints during wire threading and crimping, significantly improving the electrical safety of the chassis. Simultaneously, the installation method of soldering or connecting the fan module and power module to both ends of the backplate eliminates the cumbersome operation of laying wires flat and adhering them to the bottom surface, simplifying the production process, reducing labor costs, and minimizing assembly errors. Furthermore, the distribution of the power module and fan module at both ends of the backplate, with airflow running through the middle, achieves full-area heat dissipation on the backplate, further enhancing heat dissipation performance. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 An overall appearance view of an embodiment of the chassis provided by this utility model;

[0020] Figure 2 for Figure 1 First-person view of the internal structure;

[0021] Figure 3 for Figure 1 A second-view diagram of the internal structure;

[0022] Figure 4 for Figure 2 or Figure 3 Exploded view;

[0023] Figure 5 for Figure 4 Exploded view of the middle section;

[0024] Figure 6 for Figure 5 The first type of fan module structure diagram;

[0025] Figure 7 for Figure 6 Exploded view of the middle section;

[0026] Figure 8 for Figure 5 The second type of fan module structure diagram;

[0027] Figure 9 for Figure 8 Exploded view of the middle section.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Backplate; 11. First end; 111. Second connector; 112. Guide pin; 12. Second end; 2. Power module; 3 / 3'. Fan module; 31. Control board; 311. First connector; 312. Guide sleeve; 313. Plug connector; 314. Chip; 32. Fan assembly; 321. Fan cover; 3211. First receiving slot; 3212. Clearance hole; 3213. Fan hole; 3214. Second receiving slot; 322. Fan; 323. Dustproof net; 324. Baffle; 3241. Air outlet; 3242. Reinforcing rib; 325. Shaft; 326. Fixing plate; 4. Housing; 41. Ventilation hole; 5. Guide rail; 51. Edge banding; 6. Main board. Detailed Implementation

[0030] 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 scope of protection of the present utility model.

[0031] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] The computer case is a crucial component of computers and other electronic devices, housing various electronic components such as the motherboard, power supply, and hard drive. These components continuously generate heat during operation. If this heat cannot be dissipated effectively, the internal temperature of the case will rise, potentially affecting the performance stability and lifespan of the electronic components, and in severe cases, even causing equipment malfunction. To improve heat dissipation from the case, a fan module is necessary.

[0034] In existing technologies, fan modules typically use wires to connect to the battery. These wires are usually crimped into cable trays at the bottom of the chassis; due to space constraints, their outer sheaths are easily scratched, potentially causing short circuits. Furthermore, the wires may be damaged during the connection process due to threading or crimping operations.

[0035] During the production and assembly process, each wire needs to be laid flat and ensured to be flush against the bottom surface without sticking up. This results in low overall efficiency and high labor costs. Furthermore, the inefficient placement of the power supply module and fan module within the chassis prevents proper heat dissipation for the power supply module and other components inside the chassis.

[0036] In view of this, the present invention provides a plug-in fan chassis (such as...) Figure 1 As shown in the figure, the design aims to solve the problems of short circuits, low assembly efficiency, and poor heat dissipation in the existing technology where the fan module and power module are connected by wires, so as to improve the safety, ease of assembly and heat dissipation performance of the chassis.

[0037] Please see Figure 2 and Figure 3 The chassis includes a back panel 1, a power supply module 2, and a fan module 3 / 3'. The back panel 1, power supply module 2, and fan module 3 / 3' are each housed within the chassis housing 4; the housing 4 has ventilation holes 41 corresponding to the area of ​​the fan module 3 / 3' (e.g., Figure 1(As shown).

[0038] The backplate 1, as a type of circuit board, has printed circuitry on its surface. Specifically, circuitry can be printed on one side of the backplate 1 or on both sides. The circuitry extends to opposite first ends 11 and second ends 12 of the backplate 1; these first ends 11 and second ends 12 can be, for example,... Figures 2 to 4 The backplate 1 shown has a length direction (the length direction is in the direction of the backplate 1). Figure 2 The two opposite ends on the (represented by the dashed line a) can also be the width direction of the backplate 1 (the width direction is in the middle). Figure 2 The two ends on the backplate 1 are indicated by the dashed line b. It can be seen that the first end 11 and the second end 12 are relatively far apart on the backplate 1. Between the first end 11 and the second end 12 of the backplate 1, other electronic components such as the motherboard 6 and hard drive are usually installed. These components are electrically connected to the lines on the backplate 1 through connectors or solder joints to realize signal transmission and power supply to the power module 2 and the fan module 3 / 3'.

[0039] The fan module 3 / 3' is used to dissipate heat from the components inside the chassis. The fan module 3 / 3' is located at the first end 11 of the backplate 1, and the fan module 3 / 3' is electrically connected to the printed circuit on the backplate 1. The fan module 3 / 3' can be installed at the first end 11 of the backplate 1 by either soldering it to the first end 11 of the backplate 1 or by plugging it into the first end 11 of the backplate 1 through a connector.

[0040] The power module 2 provides stable power to the various electronic components within the chassis and is located at the second end 12 of the backplate 1. The power module 2 is electrically connected to the hard-wired circuitry on the backplate 1, and in conjunction with the aforementioned electrical connection between the fan module 3 / 3' and the printed circuitry on the backplate 1, the fan module 3 / 3' is electrically connected to the power module 2 via the hard-wired circuitry on the backplate 1. The power module 2 can be mounted on the second end 12 of the backplate 1 either by soldering or by plugging it into the second end 12 of the backplate 1 using a connector.

[0041] The specific implementation principle is as follows: After the power module 2 is connected to external power, it forms a distributed power supply network through the printed circuit on the surface of the backplate 1. Power starts from the second end 12 (the mounting position of the power module 2) of the backplate 1, directly supplying power to the motherboard 6, hard drive and other electronic components installed in the middle area of ​​the backplate 1, and also transmitting along the circuit to the first end 11 (the mounting position of the fan module 3 / 3') of the backplate 1, driving the fan module 3 / 3' to start operating. Furthermore, since the fan module 3 / 3' and the power module 2 are located at the first end 11 and the second end 12 of the backplate 1, which are relatively far apart, and the area between them is the mounting area for other electronic components, the airflow generated by the fan module 3 / 3' when it is working will form a through flow along the plane of the backplate 1: the airflow starts from the first end 11, first flows through all the components in the middle area, and performs directional heat dissipation on the motherboard 6, hard drive and other components, and then continues to flow to the power module 2 at the second end 12, carrying away the heat generated during its operation.

[0042] In summary, this embodiment of the invention constructs a stable distributed power supply network by replacing the transmission wires with printed circuitry on the backplate 1, enabling electrical connections between the power module 2, fan module 3 / 3', and electronic components in the central area. This design avoids the risk of outer sheath damage and short circuits caused by space constraints during wire threading and crimping, significantly improving the electrical safety of the chassis. Simultaneously, the installation method of soldering or connectoring the fan module 3 / 3' to the power module 2 at both ends of the backplate 1 eliminates the cumbersome operation of laying wires flat and adhering them to the bottom surface, simplifying the production process, reducing labor costs, and minimizing assembly errors. Furthermore, the distribution of the power module 2 and fan module 3 / 3' at both ends, along with the airflow running through the middle, achieves full-area heat dissipation on the backplate 1, further enhancing heat dissipation performance.

[0043] In some embodiments, please refer to Figure 4 For easy disassembly, the fan module 3 / 3' and the power module 2 are respectively plugged into the backplate 1. Specifically, the fan module 3 / 3' is connected to the backplate 1 via a first connector 311 on its end face facing the backplate 1, and the first end 11 of the backplate 1 has a second connector 111. The first connector 311 is used to plug into the second connector 111, so that the fan module 3 / 3' is electrically connected to the wiring on the backplate 1.

[0044] The connection structure between the fan module 3 / 3' and the backplate 1 includes a first connector 311 and a second connector 111 that match each other. The first connector 311 is located on the end face of the fan module 3 / 3' facing the backplate 1. It typically integrates metal pins or sockets and is encased in an insulating shell. The edge of the shell may have a positioning groove or a guide bevel. The second connector 111 is located at the first end 11 of the backplate 1 and is electrically connected to the printed circuit on the surface of the backplate 1. Its structure is adapted to the first connector 311. It has a corresponding socket or pin and may have a positioning boss that matches the positioning groove of the first connector 311. In some embodiments, a snap-fit ​​structure is also designed so that the two can automatically lock together when they are plugged in.

[0045] When the fan module 3 / 3' needs to be installed onto the backplate 1, the positioning structure of the first connector 311 and the second connector 111 (such as a guide ramp guiding the positioning boss to slide into the positioning groove) allows for quick alignment of the connection positions. Along the thickness direction of the backplate 1 (the thickness direction is...) Figure 2 (Represented by the dashed line 'c') Push the fan module 3 / 3' to insert the pins of the first connector 311 into the socket of the second connector 111 (or vice versa) until the contact points are fully engaged. At this point, the latching structure is locked, completing the mechanical fixation and electrical connection. Power is transmitted from the printed circuit of the backplate 1 through the second connector 111 to the first connector 311, and then into the internal circuit of the fan module 3 / 3' to drive the fan module 3 / 3' to operate. To disassemble, press the latch to release the locking state, and pull the fan module 3 / 3' in the opposite direction to separate the two connectors and interrupt the electrical connection.

[0046] In this embodiment of the utility model, the fan module 3 / 3' and the back plate 1 are connected by a first connector 311 and a second connector 111 that match each other. The first connector 311 is located on the end face of the fan module 3 / 3' facing the back plate 1, and the second connector 111 is located at the first end 11 of the back plate 1 and is electrically connected to the back plate 1. The two are quickly aligned with the positioning structure and the electrical connection is completed by the engagement of the pin and the socket. The snap-fit ​​structure ensures fixation and facilitates installation and disassembly.

[0047] In some embodiments, please continue reading Figure 4 In order to achieve dual-sided heat dissipation of the backplate 1, two fan modules are provided, with the two fan modules located on both sides of the first end 11 of the backplate 1.

[0048] Two fan modules are provided, installed on both sides of the first end 11 of the backplate 1, that is, on the front and back sides of the backplate 1 in the thickness direction. Both fan modules 3 are electrically connected to the printed circuit of the first end 11 of the backplate 1. The connection method can be soldering or plugging. If plugging is used, it is also equipped with matching connectors, positioning structures and clips to ensure that the installation is stable and does not interfere with the space of other components in the chassis, while providing sufficient airflow channels.

[0049] During operation, both fan modules 3 can be turned on simultaneously, or only one of them can be turned on. When both fan modules 3 are turned on simultaneously, heat dissipation can be enhanced through "dual-sided airflow circulation." Specifically, one fan module 3 draws in cool air from outside or low-temperature areas, introducing it to one side of the backplate 1 and allowing it to flow over the electronic components on that side; the other fan module 3 exhausts air, accelerating the exhaust of hot air from the other side of the backplate 1, or actively blowing air onto the components on that side. The two airflows form a convection circulation on both sides of the backplate 1, not only covering all electronic components, but also utilizing the thermal conductivity of the backplate 1 to transfer heat from one side to the other and carry it away by the airflow, achieving all-round heat dissipation.

[0050] This embodiment of the utility model provides a fan module on each side of the first end 11 of the back plate 1, and both fan modules 3 / 3' are electrically connected to the printed circuit of the first end 11 of the back plate 1, which enables double-sided heat dissipation of the back plate 1, expands the heat dissipation coverage, and improves the heat dissipation efficiency.

[0051] In some embodiments, please refer to Figure 3 In order to facilitate heat dissipation of the power module 2, the bottom of the power module 2 is spaced apart from the bottom wall of the chassis 4, so that the power module 2 is suspended relative to the bottom wall of the chassis 4.

[0052] Specifically, multiple uprights can be added around the power module 2, each upright having multiple vertically arranged snap-fit ​​holes. The uprights can move up and down and are secured by snapping into the snap-fit ​​holes. To further ensure the stability of the power module 2's vertical sliding, multiple guide rails can be added around the power module. The height of the power module 2 on the uprights can be adjusted according to actual heat dissipation requirements. This suspended configuration creates an airflow gap between the bottom of the power module 2 and the bottom wall of the chassis. When the fan module 3 / 3' is operating, some airflow can pass through this gap, carrying away the heat generated at the bottom of the power module 2 and preventing heat accumulation at the bottom of the power module 2.

[0053] In some embodiments, please refer to Figure 4 To ensure accurate mating between the first connector 311 of the fan module 3 / 3' and the second connector 111 on the backplate 1, a guide structure is added. Specifically, a guide rail 5 is provided at the top and / or bottom of the chassis 4, extending along the thickness direction of the backplate 1. The fan module 3 / 3' is slidably connected to the guide rail 5 along the thickness direction of the backplate 1; the insertion ends of the first connector 311 and the second connector 111 both face the thickness direction of the backplate 1.

[0054] The guide rails 5 at the top and / or bottom of the chassis 4 can be screwed to the chassis. The cross-sectional shape of the guide rails 5 (such as T-shaped, strip-shaped, etc.) is adapted to the corresponding grooves or sliders of the fan module 3 / 3', forming a stable sliding fit structure to ensure that the fan module 3 / 3' can slide smoothly along the guide rails 5 without lateral deviation. At the same time, the ends of the first connector 311 on the fan module 3 / 3' and the second connector 111 on the backplate 1 used for mutual insertion (i.e., the mating surfaces of the pins or sockets) are both oriented towards the thickness direction of the backplate 1, consistent with the extension direction of the guide rails 5 and the sliding direction of the fan module 3 / 3'.

[0055] This embodiment of the utility model provides a rigid guide path for the movement of the fan module 3 / 3' through the guide rail 5, forcing it to move only along the thickness direction of the back plate 1, thus eliminating lateral deviation caused by vibration, assembly errors, etc. during the sliding process. The insertion ends of the first connector 311 and the second connector 111 are both oriented in the same direction (thickness direction of the back plate 1), so that the insertion axis of the two is completely coincident with the sliding path of the fan module 3 / 3'. This ensures that when the fan module 3 / 3' slides along the guide rail 5 to the installation position, the two connectors can be naturally in a coaxial alignment state and can be precisely engaged without additional adjustment.

[0056] In some embodiments, please continue reading Figure 4 The guide structure adopts a simple strip guide rail 5. Specifically, the two opposite edges of the guide rail 5 in the length direction are both formed into edging 51, and the fan module 3 / 3' is slidably connected between the two edging 51; the width of the fan module 3 / 3' is adapted to the spacing between the two edging 51 so as to slidably connect between the two edging 51.

[0057] The edging 51 is perpendicular to the main body of the guide rail 5 and continuously distributed along the entire extension direction of the guide rail 5, forming a groove-shaped structure with a "U" or "U" shaped cross-section. The width of the fan module 3 / 3' is adapted to the spacing between the two edgings 51. Its corresponding side can be embedded in the groove-shaped structure to achieve a sliding connection with the guide rail 5, and is always limited by the two edgings 51 during the sliding process.

[0058] This embodiment of the invention constructs a U-shaped or concave groove-shaped constraint channel through the side edging 51. The adaptation between the width of the fan module 3 / 3' and the spacing of the edging 51 prevents it from deviating in a direction perpendicular to the guide rail 5 during sliding, thus strictly limiting its movement trajectory. This structure, combined with the consistency of the orientation of the first and second connectors 111 with the sliding direction, ensures that when the fan module 3 / 3' slides along the guide rail 5 to the installation position, the two connectors are naturally and accurately aligned, requiring no additional manual adjustment.

[0059] In some embodiments, please refer to Figure 4 and Figure 5 To improve the stability of the first connector 311 and the second connector 111 after insertion, another guiding structure is added. Specifically, a guide pin 112 is provided at the first end 11 of the back plate 1, and the guide pin 112 extends along the thickness direction of the back plate 1; a guide sleeve 312 is provided on the control board 31 of the fan module 3 / 3', and the guide sleeve 312 extends along the thickness direction of the back plate 1, with the guide pin 112 extending into the guide sleeve 312.

[0060] The guide pin 112 can have a regular cross-section such as a circle or square. A guide sleeve 312 is correspondingly provided on the fan module 3 / 3'. The guide sleeve 312 is opened along the thickness direction of the back plate 1, and its inner diameter or inner contour matches the outer diameter or outer contour of the guide pin 112, with a depth sufficient to meet the guiding requirements after the guide pin 112 is fully inserted. When the fan module 3 / 3' slides along the guide rail 5 to near the installation position, the guide pin 112 will first enter the opening end of the guide sleeve 312, and then continue to slide into the interior of the guide sleeve 312, forming a mating relationship.

[0061] This embodiment of the utility model establishes a two-stage guiding mechanism through the guide pin 112 and the guide sleeve 312: In the initial stage of the fan module 3 / 3' sliding along the guide rail 5, the edge 51 structure of the strip guide rail 5 achieves coarse positioning to ensure its approximate direction of movement; when approaching the docking position, the cooperation between the guide pin 112 and the guide sleeve 312 begins to take effect, and the adaptation of the two further constrains the posture of the fan module 3 / 3', eliminates possible slight deviations, and ensures that the first connector 311 and the second connector 111 achieve precise insertion and positioning.

[0062] In addition, once the guide pin 112 and the guide sleeve 312 are fully engaged, the degree of wobble between the first connector 311 and the second connector 111 can be reduced, thereby ensuring the stability of the electrical connection and the reliability of the contact.

[0063] In some embodiments, please refer to Figure 7 and Figure 9 To improve heat dissipation efficiency, multiple fans 322 are used; to facilitate the maintenance and replacement of individual fans 322, multiple mating connectors 313 are added. Specifically, the fan module 3 / 3' includes a control board 31 and a fan assembly 32; the control board 31 has a first connector 311 and a mating connector 313, which are electrically connected; the fan assembly 32 includes a fan cover 321 and a fan 322 disposed within the fan cover 321, which is electrically connected to the mating connector 313 via wires; wherein, the control board 31 is disposed within the fan cover 321.

[0064] Among them, the control board 31 serves as the core connection hub. On the one hand, it is equipped with a first connector 311 for docking with the corresponding connector of the back panel 1, thereby accessing the printed circuit of the back panel 1 (to obtain power and control signals); on the other hand, it integrates multiple mating connectors 313, and the first connector 311 and all mating connectors 313 are electrically connected through the internal circuit of the control board 31 (if there are multiple first connectors 311, each first connector 311 is connected to a portion of the mating connectors 313 respectively).

[0065] The structure of the fan assembly 32 is as follows: the fan cover 321 is typically made of plastic or metal and is cylindrical or square. The fan cover 321 can take one of the following two forms: First, the fan cover 321 is an integral structure, with fan holes 3213 provided; second, as... Figure 6 and Figure 8 As shown, the fan cover 321 includes a frame and a partition disposed inside the frame. The partition is fixed to the frame with screws, and multiple fan holes 3213 are provided on the partition.

[0066] Multiple fans 322 are provided, and each fan 322 is arranged along the plane of the back plate 1. Correspondingly, there are multiple sets of fan holes 3213 on the surface of the fan cover 321. Inside the fan 322, a motor that drives the fan 322 to rotate is fixed by a bracket. The lead wire of the motor is connected to a plug connector, which is adapted to the mating connector 313 (usually in the form of a socket) on the control board 31. The two can be quickly connected by plugging and unplugging.

[0067] When assembling fan module 3 / 3', insert the plug connector of each fan 322 into the corresponding mating connector 313 on the control board 31 to complete the electrical connection between the motor and the control board 31. Power flows from the back panel 1 through the first connector 311 to the control board 31, and then through the mating connector 313 to the motors of each fan assembly 32, driving the fan 322 to rotate. If a single fan 322 malfunctions, simply unplug the mating connector 313 of the corresponding fan 322 to detach the faulty fan 322 from the control board 31; there is no need to disassemble the entire fan module 3 / 3' or disconnect it from the back panel 1. After replacing a new fan 322, simply re-insert its mating connector 313 into the corresponding interface on the control board 31 to restore operation.

[0068] This embodiment of the invention incorporates a control board 31 and multiple independent fan assemblies 32 within the fan module 3 / 3'. Power and signals are obtained by connecting the first connector 311 on the control board 31 to the backplane 1, and then each fan 322 is connected via multiple plug-in connectors 313. This approach improves heat dissipation efficiency through multiple fans 322 and allows for independent maintenance and replacement of individual fans 322 by plugging and unplugging the plug-in connectors 313, without disassembling the entire module, thus balancing heat dissipation performance and ease of maintenance. Furthermore, by placing the control board 31 inside the fan cover 321, direct contact between external dust, moisture, or foreign objects and the components on the control board 31 is prevented, reducing the risk of short circuits or poor contact.

[0069] In some embodiments, please continue reading Figure 7 and Figure 9 To facilitate insertion, the first connector 311 typically features a protruding design. However, to ensure a more secure installation of the control board 31, it is placed within an enclosed space. Therefore, to simultaneously meet the dual requirements of convenient insertion and secure installation, the peripheral structure of the control board 31 has been optimized. Specifically, a first receiving groove 3211 is formed on the outer side of the fan cover 321, and a clearance hole 3212 is provided on the side of the first receiving groove 3211 facing the back plate 1; in the thickness direction of the back plate 1, the first connector 311 protrudes from the edge of the control board 31; the control board 31 is disposed within the first receiving groove 3211, and the first connector 311 extends out of the fan cover 321 through the clearance hole 3212.

[0070] Since the first connector 311 protrudes from the edge of the control board 31, when installing the control board 31, it can be placed into the first receiving groove 3211 at a slight tilt first. Then, the angle of the control board 31 can be adjusted so that the protruding first connector 311 is aligned with the clearance hole 3212 on the fan cover 321. Then, the control board 31 can be fully pushed into the first receiving groove 3211 to ensure that the first connector 311 extends smoothly from the clearance hole 3212 until the edge of the control board 31 is in contact with the inner wall of the first receiving groove 3211.

[0071] In this embodiment of the invention, the first connector 311, by increasing the extension length of the connecting end, forms a protruding structure that is easier to observe and locate, facilitating quick insertion. The receiving groove provides a protective space for the control board 31, preventing collisions with other components inside the chassis, while also limiting the displacement of the control board 31 to ensure connection stability.

[0072] In some embodiments, please refer to Figure 6 and Figure 8This optimizes dust prevention and ease of maintenance. Specifically, the fan assembly 32 also includes a dust filter 323 and a baffle 324. The dust filter 323 is removably disposed on the outside of the fan cover 321. The baffle 324 is hinged to the fan cover 321 via a pivot 325. The baffle 324 can rotate around the pivot 325 to press and fix the dust filter 323 to the fan cover 321 or to release the pressing and fixing of the dust filter 323. The fan cover 321 has a fan hole 3213 for the fan 322 to rotate and exhaust air. The dust filter 323 is at least partially disposed corresponding to the fan hole 3213. The baffle 324 has an exhaust hole 3241 corresponding to the fan hole 3213.

[0073] The fan cover 321 has a fan hole 3213 for the fan 322 to rotate and expel air, which is the core channel for airflow. The dustproof net 323 can adopt a mesh structure with excellent air permeability, such as metal mesh or high-density nylon mesh; the dustproof net 323 is removably set on the outside of the fan cover 321, and at least a part of the area corresponds to the fan hole 3213 (it can be understood that the coverage of the dustproof net 323 includes the entire area of ​​the fan hole 3213, or covers the main air outlet area of ​​the fan hole 3213), ensuring that the airflow is filtered when passing through the dustproof net 323.

[0074] The baffle 324 is hinged to the fan cover 321 via a pivot 325, with the hinge point typically located at a corresponding position on the edge of the dust filter 323. The baffle 324 can rotate within a certain angle around the pivot 325. When the baffle 324 rotates to a position overlapping with the dust filter 323, the dust filter 323 can be pressed and fixed to the fan cover 321 with screws; when rotated in the opposite direction to a position perpendicular to the dust filter 323, the dust filter 323 can be easily removed. The baffle 324 has an air outlet 3241 corresponding to the fan hole 3213, the shape and size of which match the fan hole 3213 to ensure smooth airflow.

[0075] This embodiment of the utility model achieves effective filtration of dust in the airflow by setting a removable dustproof net 323 corresponding to the fan hole 3213 on the outside of the fan cover 321, preventing impurities from entering the fan 322 or the chassis and affecting the operation of the equipment; at the same time, the dustproof net 323 can be pressed with screws when it needs to be fixed by a baffle 324 that can rotate around the rotating shaft 325, and the dustproof net 323 can be easily removed by rotating the baffle 324 when maintenance is required, thus achieving both good dustproof effect and convenient maintenance operation.

[0076] In some embodiments, please continue reading Figure 6 and Figure 8In order to achieve stable positioning of the dustproof net 323, a second receiving groove 3214 is formed on the outer side of the fan cover 321, and the dustproof net 323 is removably disposed in the second receiving groove 3214; and a baffle 324 is hinged to the edge of the second receiving groove 3214, and can close or open the opening of the second receiving groove 3214 during rotation; a reinforcing rib 3242 is provided on the inner side of the baffle 324, and the reinforcing rib 3242 is used to press against the dustproof net 323.

[0077] The second receiving groove 3214 is a recessed structure formed on the outer side of the fan cover 321 around the fan hole 3213. The contour of the second receiving groove 3214 is adapted to the shape (e.g., circular or square) of the dustproof net 323, and the groove depth is slightly greater than the thickness of the dustproof net 323 so that the dustproof net 323 can be completely placed inside the second receiving groove 3214. After the dustproof net 323 is placed in the second receiving groove 3214, its edge fits against the groove wall. The groove body restricts the displacement of the dustproof net 323 through physical constraints, preventing the dustproof net 323 from shifting or falling out of the corresponding area of ​​the fan hole 3213 due to vibration when the fan 322 is working.

[0078] After the dustproof net 323 is placed in the second receiving groove 3214, it can be fixed in the second receiving groove 3214 with screws. Specifically, the bottom or edge of the second receiving groove 3214 is pre-drilled with screw holes that are compatible with the screws, and the corresponding position of the dustproof net 323 is opened with a through hole (the hole diameter is slightly larger than the screw diameter for easy insertion); when the dustproof net 323 is placed in the groove and accurately aligned with the fan hole 3213, the screw is screwed through the through hole of the dustproof net 323 and screwed into the screw hole of the groove body. The axial force generated by the thread engagement presses the dustproof net 323 tightly against the bottom of the groove, so that the edge of the dustproof net 323 is tightly attached to the groove wall and cannot be displaced in the plane or vertical direction.

[0079] Furthermore, since the baffle 324 can close or open the opening of the second receiving groove 3214, and the inner side of the baffle 324 is provided with reinforcing ribs 3242, when the baffle 324 rotates around the pivot 325 to the position where the opening of the second receiving groove 3214 is closed, the reinforcing ribs 3242 will directly press against the outer surface of the dustproof net 323, further enhancing the fixing effect on the dustproof net 323.

[0080] The specific process of disassembling and installing the dustproof net 323 is as follows: simply loosen the screws of the fixing baffle 324, rotate the baffle 324 to release the pressure of the reinforcing rib 3242 on the dustproof net 323, and then unscrew the screws fixing the dustproof net 323. The dustproof net 323 can then be taken out from the second receiving slot 3214 for cleaning or replacement, which greatly improves the convenience of maintenance.

[0081] This embodiment of the invention uses a second receiving groove 3214 adapted to the dustproof mesh 323 on the outside of the fan cover 321 to limit the dustproof mesh 323, and fixes it in the groove with screws, and then cooperates with a baffle 324 hinged to the edge of the groove. When the baffle 324 is closed, the inner reinforcing rib 3242 further presses against the dustproof mesh 323, and it is convenient to put in and take out when it is open; during disassembly and maintenance, it is only necessary to loosen the screws of the baffle 324 and the dustproof mesh 323, which not only achieves stable fixation of the dustproof mesh 323, but also greatly improves the convenience of maintenance.

[0082] In some embodiments, please refer to Figure 7 and Figure 9 After the fan module 3 / 3' is installed inside the housing 4, a fixing plate 326 is added to the fan cover 321 to enhance the protection of the fan module 3 / 3'. Specifically, the fixing plate 326 is located on the side of the fan cover 321 away from the back plate 1. The back plate 1 can be fixed to the fan cover 321 with screws.

[0083] To further facilitate disassembly, a handle is provided on the mounting plate 326. During assembly and disassembly, when installing the fan module 3 / 3' into the chassis, the operator can hold the handle and push the fan module 3 / 3' along the guide rails 5 at the top and / or bottom of the chassis, allowing it to slide smoothly along the thickness direction of the backplate 1 until the first connector 311 precisely aligns with the second connector 111 on the backplate 1. For disassembly, pulling the handle in the opposite direction will slide the fan module 3 / 3' out of the chassis along the guide rails 5, eliminating the need for additional tools and simplifying the installation and removal process, thus improving operational convenience. Simultaneously, the mounting plate 326 increases the structural strength of the fan cover 321 away from the backplate 1, effectively resisting external impacts and preventing deformation and damage to the internal fan assembly 32 due to collisions, further ensuring the stable operation of the fan module 3 / 3'.

[0084] In some embodiments, please continue reading Figure 7 and Figure 9 To achieve intelligent control of each fan 322, a chip 314 is provided on the control board 31. This chip 314 can determine the supply voltage and the fan speed 322 to adapt to environments with different heat dissipation requirements and to fans 322 with the same speed but different voltages. The following explanation uses a microcontroller chip 314 as an example.

[0085] The plug-in connector 313 has four signal pins, all of which are connected to the microcontroller chip 314. The microcontroller chip 314 can adjust the voltage and speed supplied to the fan module 3 / 3' based on the temperature feedback from the motherboard 6 inside the enclosure 4 and the detected fan speed 322. For example, there are three fans 322 with a full-speed of 5000 RPM, with voltage values ​​of 3.3V, 5V, and 12V respectively. The microcontroller chip 314 can intelligently identify the voltage required by the fan 322 and provide the accurate voltage.

[0086] ① Use a 322 fan with a full speed of 5000 RPM and a voltage of 3.3V.

[0087] After the device is powered on, the microcontroller controlling fan 322 first initializes by outputting a 100% PWM duty cycle to the fan 322 speed control pin and simultaneously setting the fan 322 voltage to 3.3V. Within 2 minutes (this time value is for illustrative purposes only and is not the actual detection time), if the detected fan 322 speed reaches 80% of 5000 RPM, the microcontroller considers the input voltage to meet the requirements, maintains the fan 322 voltage at 3.3V, and adjusts the speed control PWM to be correlated with the input temperature.

[0088] ② Use a fan 322 with a full speed of 5000 RPM and a voltage of 5V.

[0089] After the device is powered on, the microcontroller controlling fan 322 initializes by outputting a 100% PWM duty cycle to the fan 322 speed control pin and setting the fan 322 voltage to 3.3V. Within 2 minutes (this timeframe is for illustrative purposes only and not the actual detection time), if the detected fan 322 speed is less than 80% of 5000 RPM, the microcontroller considers the input voltage insufficient and increases the fan 322 control voltage to 5V before continuing speed monitoring. Within the next 2 minutes (this timeframe is for illustrative purposes only and not the actual detection time), if the detected fan 322 speed reaches 80% of 5000 RPM, the microcontroller considers the input voltage sufficient, maintains the fan 322 voltage at 5V, and adjusts the speed control PWM to be correlated with the input temperature.

[0090] ③ Use a fan 322 with a full speed of 5000 RPM and a voltage of 12V.

[0091] After the device is powered on, the microcontroller controlling fan 322 initializes by outputting a 100% PWM duty cycle to the fan 322 speed control pin and setting the fan 322 voltage to 3.3V. Within 2 minutes (this timeframe is for illustrative purposes only and not the actual detection time), if the detected fan 322 speed is less than 80% of 5000 RPM or the fan 322 speed is 0, the microcontroller considers the input voltage insufficient and increases the fan 322 control voltage to 5V, then continues speed monitoring. Within 2 minutes (this timeframe is for illustrative purposes only and not the actual detection time), if the detected fan 322 speed is still less than 80% of 5000 RPM or the fan 322 speed is 0, the microcontroller again considers the input voltage insufficient and increases the fan 322 control voltage to 12V, then continues speed monitoring. Within 2 minutes (this time value is for illustrative purposes only and is not the actual detection time), if the detected fan 322 speed reaches 80% of 5000 RPM, the microcontroller considers the input voltage to meet the requirements, maintains the fan 322 voltage at 12V, and adjusts the speed control PWM to be related to the input temperature.

[0092] The control board 31 has a fuse at the voltage input terminal of the fan 322. If the input voltage is higher than the actual required voltage, the fuse will blow in case of overcurrent, thus preventing damage to the power supply or creating a safety hazard.

[0093] Fan modules are equipped on both the front and rear sides of the backplane 1, specifically a front-mounted fan module 3 and a rear-mounted fan module 3'. When the power consumption of the front-mounted cards is high, the microcontroller chip 314 on the control board 31 in the front-mounted fan module 3 can be used to control the voltage to 12V and adjust the speed to full speed. When the power consumption of the rear-mounted cards is low, the microcontroller chip 314 on the control board 31 in the rear-mounted fan module 3' can be used to control the voltage to 3.3V or 5V and adjust the speed to 50% or lower.

[0094] It should be noted that fan 322 is not limited to either intake or exhaust mode. When the power consumption of the rear expansion card is low and there are few expansion cards, exhaust mode can be used. In exhaust mode, dust generally does not accumulate at the exhaust vent, and the dust filter 323 can be removed. However, it is necessary to adjust the airflow direction of fan 322 and remove the dust filter 323, while also installing a dust filter 323 at the air intake vent.

[0095] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A plug-in fan chassis, characterized in that, include: A backplate, wherein the backplate is printed with lines that extend to opposite first and second ends of the backplate; A power module and a fan module, wherein the fan module is located at the first end of the backplate; The power module is located at the second end of the back panel, and the fan module is electrically connected to the power module through printed circuits on the back panel.

2. The plug-in fan chassis according to claim 1, characterized in that, The fan module has a first connector on the end face facing the back plate, and the first end of the back plate has a second connector. The first connector is used to plug into the second connector so that the fan module is electrically connected to the wiring on the back plate.

3. The plug-in fan chassis according to claim 1, characterized in that, Two fan modules are provided, and the two fan modules are respectively located on both sides of the first end of the back plate; and / or, The bottom of the power module is spaced apart from the bottom wall of the chassis, so that the power module is suspended relative to the bottom wall of the chassis.

4. The plug-in fan chassis according to claim 2, characterized in that, The top and / or bottom of the chassis are provided with guide rails, which extend along the thickness direction of the back plate, and the fan module is slidably connected to the guide rails along the thickness direction of the back plate. The insertion ends of both the first connector and the second connector face the thickness direction of the back plate.

5. The plug-in fan chassis according to claim 4, characterized in that, The two opposite edges of the guide rail along its length are bent inward to form edging; the width of the fan module is adapted to the spacing between the two edgings so as to be slidably connected between the two edgings.

6. The plug-in fan chassis according to claim 1, characterized in that, The first end of the back plate is provided with a guide pin, which extends along the thickness direction of the back plate; the control board of the fan module has a guide sleeve, which extends along the thickness direction of the back plate, and the guide pin extends into the guide sleeve.

7. The plug-in fan chassis according to claim 2, characterized in that, The fan module includes: A control board having the first connector and a plurality of mating connectors, wherein the first connector and each of the mating connectors are electrically connected. A fan assembly includes a fan housing and a plurality of fans disposed within the fan housing, each of the fans being connected to a respective mating connector via wires; The control board is located inside the fan cover.

8. The plug-in fan chassis according to claim 7, characterized in that, A first receiving groove is formed on the outer side of the fan cover, and a clearance hole is provided in the first receiving groove facing the side wall of the back plate; In the thickness direction of the back plate, the first connector protrudes beyond the edge of the control plate; The control board is disposed in the first receiving slot, and the first connector extends out of the fan cover through the clearance hole.

9. The plug-in fan chassis according to claim 7, characterized in that, The fan assembly also includes: A dust filter is removably mounted on the outside of the fan cover; A baffle is hinged to the fan cover via a pivot. The baffle can rotate around the pivot to press and fix the dustproof net to the fan cover or to release the dustproof net. The fan cover has a fan hole for the fan to rotate and vent air, the dustproof net corresponds at least partially to the fan hole, and the baffle has an air outlet hole corresponding to the fan hole.

10. The plug-in fan chassis according to claim 9, characterized in that, A second receiving groove is also formed on the outer side of the fan cover, and the dustproof net is removably disposed in the second receiving groove; The baffle is hinged to the edge of the second receiving groove and can close or open the opening of the second receiving groove during rotation; the inner side of the baffle is provided with reinforcing ribs, which are used to press against the dustproof net.

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