Computer case with through-flow fan

Abstract

This utility model provides a computer chassis with a cross-flow fan. The computer chassis includes a casing and a cross-flow fan. The cross-flow fan is installed in the inner cavity of the casing. The casing has a first side plate and a second side plate opposite to the first side plate. A main control board is installed on the inner wall of the first side plate. The second side plate has a notch. The air inlet of the cross-flow fan is installed corresponding to the notch, so that the cross-flow fan draws air in through the notch. The air outlet direction of the cross-flow fan is perpendicular to the air inlet direction, making the air outlet direction of the cross-flow fan parallel to the main control board. Using a single-sided air inlet cross-flow fan can effectively dissipate heat generated by various components inside the chassis. Furthermore, the notch on the side plate facilitates installation and maintenance, eliminates airflow backflow, and increases the effective airflow.

Description

Technical Field

[0001] This utility model belongs to the field of computer chassis technology, specifically relating to a computer chassis with a cross-flow fan. Background Technology

[0002] The computer case is an important component of a computer, mainly used to house and secure the various parts. To ensure the proper functioning of the core circuitry components inside the computer case, a cooling system is usually installed.

[0003] Existing cooling devices for computer cases include cross-flow fans and axial fans. For example, Chinese utility model patent CN222337555U discloses a case structure with parallel cooling channels, including a case body and cross-flow fans. The front end of the case body has a front panel, and the front panel or the side wall of the case body has an air inlet. The front panel and the front wall of the case body form a positioning area, and at least one cross-flow fan is located within the positioning area. The cross-flow fan includes a pivot seat spaced apart and an impeller mounted on the pivot seat. One of the pivot seats has a rotating device that drives the impeller to rotate. The pivot seat is installed within the positioning area, and the impeller is vertically arranged along the height direction of the case body. The impeller can drive fluid to flow from the air inlet towards the rear panel of the case body. The cross-flow fan disclosed in this patent has problems such as low airflow efficiency and poor adaptability. In addition, in this patent, the case is equipped with two sets of cross-flow fans, which has problems such as high noise, easy airflow short-circuiting, and inconvenient maintenance. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a computer chassis with a cross-flow fan that improves airflow efficiency and facilitates installation and maintenance.

[0005] To solve the above-mentioned technical problems, this utility model provides a computer chassis with a cross-flow fan. Its main features are that the computer chassis includes a casing and a cross-flow fan, the cross-flow fan is installed in the inner cavity of the casing, the casing has a first side plate and a second side plate opposite to the first side plate, a main control board is installed on the inner wall of the first side plate, the second side plate has a notch, the air inlet of the cross-flow fan is installed corresponding to the notch, so that the cross-flow fan draws air in from the notch, and the air outlet direction of the cross-flow fan is perpendicular to the air inlet direction, so that the air outlet direction of the cross-flow fan is parallel to the main control board.

[0006] Preferably, the cross-flow fan is vertically arranged along the height direction of the casing, and a dustproof baffle is provided at the notch.

[0007] Preferably, the dustproof baffle is a magnetic dustproof baffle.

[0008] Preferably, the housing has a front panel, the first side panel is connected to the second side panel through the front panel, and the cross-flow fan is detachably mounted on the front panel by a fixed bracket.

[0009] Preferably, the cross-flow fan includes fan blades, a duct housing, and a guide shroud. The duct housing surrounds the fan blades and forms a duct between the inner wall of the duct housing and the fan blades. An air inlet is formed between the air inlet end of the duct housing and the first end of the guide shroud, and an air outlet is formed between the air outlet end of the duct housing and the second end of the guide shroud. The second end of the guide shroud has a protrusion that protrudes toward the fan blades.

[0010] Preferably, the protrusion is U-shaped, and the air inlet, air outlet, and protrusion all extend along the axial direction of the cross-flow fan.

[0011] Preferably, the duct housing is L-shaped, and the duct housing has a first housing, a second housing, and an arc-shaped housing connecting the first housing and the second housing. The air inlet end of the duct housing is located in the first housing, and the air outlet end of the duct housing is located in the second housing. The cross-flow fan includes an air inlet grid plate, which is installed at the air inlet. The air inlet grid plate is arranged parallel to the second housing, and the air inlet grid plate is arranged perpendicular to the first housing and the air guide shroud.

[0012] Preferably, the protrusion has a first end plate, a second end plate, and a connecting portion connecting the first end plate and the second end plate. The second end plate is connected to the main body of the air guide shroud. The first end plate and the second end plate are both arranged parallel to the second housing. The air outlet is formed between the first end plate and the second housing at intervals. The main body of the air guide shroud is provided with several perforations.

[0013] Preferably, the cross-flow fan includes a main body mounting frame, the duct housing is located on the main body mounting frame and forms an inner cavity, the fan blades are installed in the inner cavity, the air guide is detachably mounted on the main body mounting frame, a receiving shell for accommodating the motor is provided below the inner cavity of the main body mounting frame, the receiving shell has a lower cover, and an upper cover is provided at the top of the main body mounting frame.

[0014] Preferably, the motor is equipped with a PWM speed control circuit module.

[0015] The computer chassis with a cross-flow fan of this utility model adopts a single-sided air intake cross-flow fan, which can effectively dissipate the heat generated by various components inside the chassis. In addition, the side plate is provided with a notch to facilitate installation and maintenance, eliminate airflow backflow and increase the effective air volume. Attached Figure Description

[0016] Figure 1 This is a partially exploded view of the computer chassis with a cross-flow fan according to this utility model.

[0017] Figure 2 This is a schematic diagram of the assembled structure of the computer chassis with cross-flow fan according to this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the computer case with cross-flow fan of this utility model without the dustproof baffle installed.

[0019] Figure 4 This is a front view of the cross-flow fan in the computer case with the cross-flow fan of this utility model.

[0020] Figure 5 This is a side view of the cross-flow fan in the computer case with cross-flow fan of this utility model.

[0021] Figure 6 This is an exploded view of the cross-flow fan in the computer case with integrated cross-flow fan according to this utility model.

[0022] Figure 7 This is a cross-sectional view of the cross-flow fan in the computer case with the cross-flow fan of this utility model. Detailed Implementation

[0023] To make the technical problem solved by this utility model clearer, the present utility model is further described below with reference to embodiments and accompanying drawings. The specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model.

[0024] like Figures 1 to 7 The image shows a specific embodiment of the computer chassis with a cross-flow fan according to this utility model. The computer chassis includes a housing 16 and a cross-flow fan 19. The cross-flow fan 19 is vertically installed in the inner cavity of the housing 16 along its height. This utility model does not limit the installation direction of the cross-flow fan 19; for example, it can also be installed horizontally along the length of the housing.

[0025] The casing 16 has a first side plate and a second side plate 21 opposite to the first side plate. A main control board is mounted on the inner wall of the first side plate. A notch is provided in the second side plate 21, and the air inlet of the cross-flow fan 19 is installed corresponding to the notch, allowing the cross-flow fan 19 to draw air in through the notch. The airflow direction of the cross-flow fan 19 is perpendicular to the airflow direction, making the airflow direction of the cross-flow fan 19 parallel to the main control board. Therefore, through the specific arrangement of a single cross-flow fan, the computer chassis of this invention can achieve vertical airflow into the main control board on one side and parallel airflow out of the main control board. Simultaneously, the unidirectional airflow design blocks dust intrusion (dustproof efficiency > 92%). The main control board can be a computer PC motherboard or a separate PCB board.

[0026] like Figures 1 to 3 As shown, the notch is a ventilation opening located on the second side panel, and a removable dust baffle 20 is provided. In this embodiment, the dust baffle 20 is a magnetic dust baffle, which enables portable and quick removal (removal and installation time < 10 seconds). At the same time, the magnetic dust baffle, in conjunction with the cross-flow fan, can achieve efficient heat dissipation through enhanced directional airflow, eliminate airflow backflow, and increase effective air volume.

[0027] like Figure 1 As shown, the housing 16 has a front panel 17, and the first side panel is connected to the second side panel 21 through the front panel 17. The cross-flow fan 19 is detachably mounted on the front panel 17 through a fixing bracket 18. The cross-flow fan is assembled from the side of the housing through the fixing bracket. After being fixed with screws, a magnetic dustproof baffle is installed to complete the assembly.

[0028] Based on the single-sided air intake heat dissipation structure of this utility model, the noise under full load is reduced by 60% compared to the traditional chassis with two cross-flow fans. At the same time, the maintenance cost is reduced, and the assembly and magnetic disassembly design reduces manual time by 83%.

[0029] like Figures 4 to 7 The diagram illustrates an embodiment of the cross-flow fan of this invention, relating to computer hardware heat dissipation, and particularly suitable for mechatronic devices that improve heat dissipation efficiency through optimized airflow guidance and fan blade layout. The cross-flow fan includes fan blades 3, an airflow duct housing 4, and a guide shroud 2. The airflow duct housing 4 surrounds the fan blades 3, forming an airflow duct between the inner wall of the airflow duct housing 4 and the fan blades 3.

[0030] like Figure 5 and Figure 7As shown, the air inlet end of the duct housing 4 and the first end of the guide shroud 2 are spaced apart to form an air inlet. In this embodiment, the cross-flow fan also includes an air inlet grid plate 1, which is installed at the air inlet. Specifically, the air inlet end of the duct housing 4 is connected to one side of the air inlet grid plate, and the opposite side of the air inlet grid plate is connected to the first end of the guide shroud 2. An air outlet 15 is spaced apart between the air outlet end of the duct housing 4 and the second end of the guide shroud 2. The second end of the guide shroud 2 has a protrusion 5 that protrudes towards the fan blade 3. Figure 7 As shown, the protrusion 5 is U-shaped. On the one hand, the design of the protrusion 5, together with the air duct shell and the air guide, forms an air guiding structure, which better guides and intercepts the airflow, increases the air outlet speed, and improves the airflow guiding efficiency; on the other hand, the internal cavity of the protrusion 5 can be used to assemble light strips, and the light strips can be disassembled and assembled according to actual needs.

[0031] like Figures 4 to 6 As shown, the air inlet, air outlet 15, and protrusion 5 all extend along the axial direction of the cross-flow fan.

[0032] like Figure 7 As shown, the duct housing 4 is generally L-shaped. Specifically, the duct housing 4 has a first housing 11, a second housing 10, and an arc-shaped housing 12 connecting the first housing 11 and the second housing 10. The air inlet of the duct housing 4 is located in the first housing 11, and the air outlet of the duct housing 4 is located in the second housing 10.

[0033] The air inlet mesh plate 1 is arranged parallel to the second housing 10, and perpendicular to the first housing 11 and the air guide shroud 2. The air inlet mesh plate serves as the air inlet, thus the air inlet direction is perpendicular to the air outlet direction.

[0034] like Figure 7 As shown, the protrusion 5 has a first end plate 14, a second end plate 13, and a connecting part that connects the first end plate 14 and the second end plate 13. The second end plate 13 is connected to the main body of the air guide shroud 2. The first end plate 14 and the second end plate 13 are both arranged parallel to the second housing 10. The air outlet 15 is formed between the first end plate 14 and the second housing 10 at intervals.

[0035] like Figures 4 to 6 As shown, the main body of the flow guide 2 has several perforations distributed along the axial direction.

[0036] like Figure 6As shown, the cross-flow fan includes a main frame 8, with the duct housing 4 and the inlet mesh plate 1 integrally formed on the main frame 8 to form an inner cavity. The fan blades 3 are installed in the inner cavity, and the air guide shroud 2 is detachably installed on the main frame 8. A housing for accommodating the motor 6 is provided at the bottom of the inner cavity of the main frame 8, and the housing has a lower cover 7. An upper cover 9 is provided at the top of the main frame 8. The fan blades 3 are fixed to the main frame 8, the brushless motor passes through the shaft at the lower end of the main frame and is installed in the housing, and the air guide shroud 2 is locked to the chassis bracket by snaps. The upper and lower covers are then fastened together, thus assembling the cross-flow fan of this utility model. The fan blades can be made of aluminum alloy, and the air guide shroud and main frame can be made of resin plastic.

[0037] In this embodiment, the main body fixing frame 8 integrally forms the air duct shell 4 and the air inlet grid plate 1. Alternatively, the air inlet grid plate can be omitted from the main body fixing frame 8, that is, the cross-flow fan may not have an air inlet grid plate.

[0038] The motor is equipped with a PWM speed control circuit module. As temperature increases, the speed increases accordingly; as temperature decreases, the speed decreases accordingly, effectively controlling noise and achieving adaptive airflow adjustment based on temperature. The motor's output connector can be connected to the main control board of the chassis.

[0039] After multiple actual tests, when the cross-flow fan of this utility model is applied to a PC chassis, its heat dissipation performance, noise control, intelligent adaptation, and reliability are significantly improved.

[0040] The cross-flow fan of this invention, through the cooperation of the air inlet grid plate, the air duct shell, and the air guide cover, can effectively control the air outlet efficiency and improve the heat dissipation performance of the cross-flow fan when applied to PC chassis.

[0041] The above descriptions are specific embodiments of this utility model and do not constitute a limitation on the scope of protection of this utility model. Any modifications and variations made to the technical concept of this utility model should be included within the scope of protection of this utility model.

Claims

1. A computer chassis with a cross-flow fan, characterized in that, The computer chassis includes a casing and a cross-flow fan. The cross-flow fan is installed in the inner cavity of the casing. The casing has a first side plate and a second side plate opposite to the first side plate. A main control board is installed on the inner wall of the first side plate. The second side plate has a notch. The air inlet of the cross-flow fan is installed corresponding to the notch, so that the cross-flow fan takes in air from the notch. The air outlet direction of the cross-flow fan is perpendicular to the air inlet direction, so that the air outlet direction of the cross-flow fan is parallel to the main control board.

2. The computer chassis with a cross-flow fan according to claim 1, characterized in that, The cross-flow fan is vertically installed along the height of the casing, and a dustproof baffle is installed at the notch.

3. The computer chassis with a cross-flow fan according to claim 2, characterized in that, The dustproof baffle is a magnetic dustproof baffle.

4. The computer chassis with a cross-flow fan according to claim 1, characterized in that, The housing has a front panel, the first side panel is connected to the second side panel through the front panel, and the cross-flow fan is detachably mounted on the front panel through a fixed bracket.

5. The computer chassis with a cross-flow fan according to any one of claims 1 to 4, characterized in that, The cross-flow fan includes fan blades, a duct housing, and a guide shroud. The duct housing surrounds the fan blades and forms a duct between the inner wall of the duct housing and the fan blades. An air inlet is formed between the air inlet end of the duct housing and the first end of the guide shroud, and an air outlet is formed between the air outlet end of the duct housing and the second end of the guide shroud. The second end of the guide shroud has a protrusion that protrudes toward the fan blades.

6. The computer chassis with a cross-flow fan according to claim 5, characterized in that, The protrusion is U-shaped, and the air inlet, air outlet, and protrusion all extend along the axial direction of the cross-flow fan.

7. The computer chassis with a cross-flow fan according to claim 5, characterized in that, The air duct housing is L-shaped and has a first housing, a second housing, and an arc-shaped housing connecting the first housing and the second housing. The air inlet of the air duct housing is located in the first housing, and the air outlet of the air duct housing is located in the second housing. The cross-flow fan includes an air inlet grid plate, which is installed at the air inlet. The air inlet grid plate is parallel to the second housing and perpendicular to the first housing and the air guide shroud.

8. The computer chassis with a cross-flow fan according to claim 7, characterized in that, The protrusion has a first end plate, a second end plate, and a connecting part that connects the first end plate and the second end plate. The second end plate is connected to the main body of the air guide. The first end plate and the second end plate are both arranged parallel to the second housing. The air outlet is formed between the first end plate and the second housing at intervals. The main body of the air guide has several perforations.

9. The computer chassis with a cross-flow fan according to claim 5, characterized in that, The cross-flow fan includes a main body frame, the duct housing is located on the main body frame and forms an inner cavity, the fan blades are installed in the inner cavity, the air guide is detachably installed on the main body frame, a receiving shell for accommodating the motor is provided below the inner cavity of the main body frame, the receiving shell has a lower cover, and an upper cover is provided on the top of the main body frame.

10. The computer chassis with a cross-flow fan according to claim 9, characterized in that, The motor is equipped with a PWM speed control circuit module.

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