Dustproof heat dissipation device
By installing a dust-proof and heat-dissipating device controlled by wind and gravity on the computer chassis, the problem of dust entry is solved, effective heat dissipation and dust prevention are achieved, and the overall performance of the chassis is improved.
Patent Information
- Application Number
- CN202420915901.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-29
AI Technical Summary
When the heat dissipation ports of existing computer chassis meet the heat dissipation needs, dust is easily allowed to enter the chassis, resulting in damage to the motherboard and external equipment sockets, affecting the computer's performance, and the dustproof grid cannot completely block the dust in the non-working state.
A dust-proof and heat dissipation device is designed to blow the blades into the heat dissipation ports and close them when the blades are stopped by the gravity of the blades, combining the outer fins and the inner fins to improve heat dissipation and closure efficiency.
It realizes effective heat dissipation during work and completely dustproof during non-working, protects the inside of the chassis, and improves the reliability and performance of the computer.
Smart Images
Figure CN222259999U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of heat dissipation, and specifically relates to a dustproof heat dissipation device. Background Art
[0002] As a part of computer accessories, the main function of the chassis is to place and fix various computer accessories, support and protect its internal components, and the chassis usually needs to have good expandability, dustproofness and heat dissipation.
[0003] In order to meet the heat dissipation requirements of its internal components, existing computer cases usually need to open heat dissipation ports on the computer case. A heat dissipation fan is set inside the case to discharge the hot air inside the case from the heat dissipation ports. However, these heat dissipation ports provide a channel for dust to enter the case. Dust entering the case and covering the motherboard will have an adverse effect on the normal use of the motherboard. If the USB ports, audio ports and other external device ports on the case are not used for a long time, dust will also enter, resulting in poor contact of the external device ports, which seriously affects the performance of the computer.
[0004] Currently, the cooling fan in the chassis will automatically adjust the wind speed according to the temperature. The higher the temperature, the faster the fan speed and the stronger the wind force. However, the air outlets of the chassis are of fixed size and are equipped with dust-proof grids. Therefore, when the computer is working, the dust-proof grids will affect the exhaust volume of the cooling fan. When the computer is not working, the dust-proof grids of the heat dissipation port cannot completely prevent dust from entering the chassis. Utility Model Content
[0005] The present application opens the heat dissipation port by blowing blades of a heat dissipation fan, and closes the heat dissipation port by utilizing the gravity of the blades, thereby effectively solving the seemingly contradictory problem of heat dissipation and dust prevention.
[0006] The technical solutions adopted in this application are as follows:
[0007] A dustproof heat dissipation device is installed on a heat dissipation port facing the air outlet side of a heat dissipation fan, and the dustproof heat dissipation device comprises:
[0008] A mounting frame is used to mount the dustproof heat dissipation device on the heat dissipation port, and a plurality of pairs of card slots are arranged vertically spaced on the inner side of the mounting frame, and each pair of card slots is arranged on opposite surfaces of the inner side of the mounting frame;
[0009] The blades are connected with mounting rods at both ends of the length direction of each blade. The mounting rods at both ends of each blade can be rotatably mounted in a pair of slots, so that the blades are mounted on the mounting frame.
[0010] Optionally, the blades are stacked in sequence when closing the heat dissipation opening.
[0011] Optionally, the slot includes a receiving portion, a contraction portion and an expansion portion, the receiving portion being used to receive a mounting rod placed therein, the bottom of the receiving portion being an arc greater than 180°, and both ends of the arc extending upward to a distance less than the diameter of the arc to form a contraction portion, and the two ends of the contraction portion extend obliquely upward in opposite directions to form an expansion portion.
[0012] Optionally, each blade is also provided with external fins spaced apart along the length direction of the blade.
[0013] Optionally, there is a certain distance between the upper end of the outer fin and the upper end of the blade, so that when the blades are stacked, the inner surface of the upper blade will not contact the outer fin of the outer surface of the next blade.
[0014] Optionally, inner fins are arranged on the inner surface of each blade at intervals along the length direction of the blade.
[0015] Optionally, there is a certain distance between the lower end of the inner fin and the lower end of the blade, so that when the blades are stacked, the outer surface of the next blade will not contact the inner fin on the inner surface of the previous blade.
[0016] Optionally, the inner fins and the outer fins are staggered in the length direction of the blade.
[0017] Optionally, the mounting frame is a rectangular frame.
[0018] Optionally, the mounting frame is mounted on the heat dissipation port via a snap-fit structure.
[0019] The dustproof heat dissipation device of the present application, when the cooling fan rotates, the wind force generated can make each blade lift outward to open the heat dissipation port, and the angle of the blade lifting is different according to the amount of wind, so that the opening of the heat dissipation port can be adjusted according to the wind speed of the cooling fan. When the cooling fan stops, each blade of the dustproof heat dissipation device droops by its own gravity, and the heat dissipation port of the chassis is in a completely closed state, thereby effectively preventing dust from entering the chassis. In addition, by providing fins on the blades, the fins can be used to further dissipate the heat on the blades, which is conducive to further cooling the chassis. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] By describing the embodiments thereof in conjunction with the following drawings, the above-mentioned features and technical advantages of the present utility model will become clearer and easier to understand.
[0021] Figure 1 is a schematic diagram of a dustproof heat dissipation device according to an embodiment of the utility model;
[0022] Figure 2 It is a schematic diagram of the dustproof heat dissipation device of the embodiment of the utility model installed on the chassis;
[0023] Figure 3It is a schematic diagram of a blade of an embodiment of the utility model;
[0024] Figure 4 It is a schematic diagram of a card slot of an embodiment of the utility model;
[0025] Figure 5 is a schematic diagram of a blade with external fins according to an embodiment of the utility model;
[0026] Figure 6 is a schematic diagram of a stack of blades with external fins according to an embodiment of the utility model;
[0027] Figure 7 It is a schematic diagram of a blade with inner fins and outer fins according to an embodiment of the utility model;
[0028] Figure 8 It is a schematic diagram of a blade stack with inner fins and outer fins according to an embodiment of the utility model. DETAILED DESCRIPTION
[0029] The embodiments of the present invention will be described below with reference to the accompanying drawings. It will be appreciated by those skilled in the art that the described embodiments may be modified in various ways or combinations thereof without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are illustrative in nature and are not intended to limit the scope of protection of the claims. In addition, in this specification, the drawings are not drawn to scale and the same reference numerals represent the same parts.
[0030] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be detachably connected or non-detachably connected; it can be directly connected or indirectly connected through an intermediate medium. Among them, "fixed connection" means that the relative position relationship after connection remains unchanged. "Rotational connection" means that the two parts are connected to each other and can rotate relative to each other after connection. The directional terms mentioned in the embodiments of the present application, such as "upper", "lower", "inner", "outer", etc., are only reference directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. Among them, the two components are obtained by an integrated molding process. The integrated structure means that in the process of forming one of the two components, the component is connected to the other component, and there is no need to connect the two components together by reprocessing (such as bonding, welding, snap connection, screw connection).
[0031] The present application provides a dustproof heat dissipation device, which is installed on the heat dissipation port facing the air outlet side of the heat dissipation fan. When the heat dissipation fan starts to rotate, the wind force generated can cause each blade to lift outward to open the heat dissipation port. Depending on the amount of air, the angle at which the blades are lifted outward is different, and the maximum angle that can be lifted is 90 degrees. At this time, the heat dissipation port of the chassis is in a fully open state. When the heat dissipation fan stops rotating, each blade of the dustproof heat dissipation device droops by its own gravity. At this time, the heat dissipation port of the chassis is in a completely closed state, which can effectively prevent dust from entering the chassis.
[0032] Please also read Figure 1 to Figure 2 , Figure 1 is a schematic diagram of a dustproof heat dissipation device according to an embodiment of the utility model, Figure 2 1 is a schematic diagram of the dustproof heat dissipation device 10 installed on the chassis 100. The dustproof heat dissipation device 10 includes a mounting frame 1 and blades 2. The mounting frame 1 is a rectangular frame used to mount the dustproof heat dissipation device on the heat dissipation port. The mounting frame can be mounted on the heat dissipation port through a snap-on structure or through screws. The dustproof heat dissipation device can be disassembled at any time as needed for cleaning.
[0033] It should be noted that the shape of the mounting frame can match the shape of the heat dissipation port, and is not necessarily required to be rectangular. For example, if the shape of the heat dissipation port is circular, the shape of the mounting frame is also circular, and the length of the blades thereon also changes with the shape.
[0034] See also Figure 3 , Figure 4 , Figure 3 It is a schematic diagram of a blade of an embodiment of the utility model; Figure 4 It is a schematic diagram of the card slot of the embodiment of the utility model. A plurality of pairs of card slots 11 are arranged at vertical intervals on the inner side of the rectangular frame, and each pair of card slots is arranged on opposite surfaces on the inner side of the mounting frame. The two ends of the blade 2 in the length direction are also connected with mounting rods 21, and the mounting rods 21 can be integrally formed with the blade 2, or can be connected by welding or other methods. The mounting rod 21 is used to be placed in the card slot 11, and the mounting rod 21 and the card slot 11 are rotatably connected, so that the blade 2 can be rotatably mounted on the mounting frame 1. After all the blades 2 are installed in the corresponding card slots, the blades 2 are stacked in sequence. That is, the lower end of the previous blade 2 blocks the upper end of the next blade 2, thereby closing the heat dissipation port. The specific amount of blocking can be set based on experience, for example, blocking 3mm, which is not explained here.
[0035] like Figure 4The cross-sectional view of the card slot is shown. The card slot 11 includes a receiving portion 111, a contraction portion 112 and an expansion portion 113. The receiving portion 111 is used to receive the mounting rod 21 placed therein. The bottom of the receiving portion 111 can be an arc greater than 180°. The mounting rod 21 can be circular. The mounting rod 21 can rotate in the arc, so that the blade 2 presents different angles. The distance between the two ends of the arc extending upward is less than the diameter of the arc, forming a contraction portion 112. The contraction portion 112 is used to limit the mounting rod 21 placed therein from easily falling out when rotating. The two ends of the contraction portion 112 extend obliquely upward in opposite directions to form an expansion portion 113. Since the expansion portion 113 is greater than the distance between the two ends of the contraction portion 112, it is convenient to guide the mounting rod 21 into the mounting portion 112.
[0036] Further, the blade can be set to be detachable or non-detachable. If it is detachable, a notch connected to the expansion part 113 is set on the side of the card slot 11, so that the installation rod 21 can be placed in the expansion part 113 through the notch, and then a slight pressure is applied to make the installation rod 21 pass over the contraction part 112 and put into the accommodating part 111. It is also possible to apply a slight upward pulling force to pull the installation rod 21 out of the accommodating part, so that the installation rod 21 passes over the contraction part to the expansion part 113, and then moves out of the notch to remove the blade. If it is non-detachable, it is not necessary to have a notch connected to the expansion part 113. If the blade needs to be cleaned, the mounting frame 1 can be disassembled as a whole for cleaning.
[0037] The dustproof heat dissipation device is installed on the heat dissipation port. The air inlet side of the heat dissipation fan sucks the hot air in the chassis and blows it to the heat dissipation port through the air outlet side. The blades 2 are lifted outwards by the wind force, thereby opening the heat dissipation port, so that the hot air in the chassis is discharged from the heat dissipation port. When the heat dissipation fan stops running, the blades fall down under the action of gravity, thereby closing the heat dissipation port.
[0038] See also Figures 5 to 8 , Figure 5 is a schematic diagram of a blade with external fins according to an embodiment of the utility model;
[0039] Figure 6 is a schematic diagram of a stack of blades with external fins according to an embodiment of the utility model; Figure 7 It is a schematic diagram of a blade with inner fins and outer fins according to an embodiment of the utility model; Figure 8 It is a schematic diagram of a blade stack with inner fins and outer fins according to an embodiment of the utility model.
[0040] In some embodiments, Figure 5As shown, an external fin 211 is also connected to the blade 2, and a plurality of external fins can be arranged at intervals along the length direction of the blade 2. Although the present application can discharge the hot air sucked in by the cooling fan out of the chassis through the heat dissipation port, in fact, the blade 2, as a part of the chassis, itself also has a certain amount of heat, and in the process of contact with the discharged hot air, the blade will also absorb a certain amount of heat. However, this part of the heat is not effectively released, but will be dissipated into the chassis. In this embodiment, an external fin 211 is provided on the outer surface of the blade 2, and the heat of the blade 2 can be dissipated through the external fin 211. In the process of hot air being discharged from the heat dissipation port, a part of the hot air also contacts and exchanges heat with the blade 2, and the blade 2 dissipates a part of the heat through the external fin. In addition, the upper end of the external fin 211 on the outer surface is spaced a certain distance from the upper end of the blade. The specific distance is not limited here, as long as there is no interference when the blades are stacked. As shown Figure 6 As shown, when the lower end of the upper blade blocks the upper end of the lower blade, the inner surface of the upper blade does not contact the outer fin of the outer surface of the lower blade, but the inner surface of the upper blade contacts the outer surface of the lower blade, so that the heat dissipation opening can be tightly closed. It should be noted that when the blade is not raised, the outer fin can still dissipate the heat on the blade to the outside.
[0041] Further, such as Figure 7 As shown, the inner surface of the blade 2 is also connected to an inner fin 212, which further increases the heat exchange between the hot air and the blade and improves the heat exchange efficiency. It should be noted that since the inner fin is on the inner side of the blade, it can only dissipate heat to the outside of the chassis when the blade is raised. The lower end of the inner fin 212 on the inner surface is at a certain distance from the lower end of the blade. The specific distance is not limited here, as long as there is no interference when the blades are stacked. In other words, Figure 8 As shown, when the lower end of the upper blade blocks the upper end of the next blade, the outer surface of the next blade does not contact the inner fins on the inner surface of the upper blade, but the inner surface of the upper blade contacts the outer surface of the next blade, thereby tightly sealing the heat dissipation port.
[0042] In some embodiments, Figure 7 As shown, the inner fins 212 and the outer fins 211 are staggered in the length direction of the blade, and the arrangement is shown in the figure. This arrangement allows the inner and outer fins to contact different parts of the blade respectively, increasing the contact area between the blade and the fin, and can dissipate heat more quickly.
[0043] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A dustproof heat dissipation device, installed on the heat dissipation port facing the air outlet side of the heat dissipation fan, characterized in that: The dust-proof and heat-dissipating device comprises: A mounting frame is used to mount the dustproof heat dissipation device on the heat dissipation port, and a plurality of pairs of card slots are arranged vertically spaced on the inner side of the mounting frame, and each pair of card slots is arranged on opposite surfaces of the inner side of the mounting frame; The blades are connected with mounting rods at both ends of the length direction of each blade. The mounting rods at both ends of each blade can be rotatably mounted in a pair of slots, so that the blades are mounted on the mounting frame.
2. The dustproof heat dissipation device according to claim 1, characterized in that: The blades are stacked one after another when closing the heat dissipation opening.
3. The dustproof heat dissipation device according to claim 1, characterized in that: The card slot includes a receiving portion, a contraction portion and an expansion portion. The receiving portion is used to receive the mounting rod placed therein. The bottom of the receiving portion is an arc greater than 180°. Both ends of the arc extend upward to a distance less than the diameter of the arc to form a contraction portion. Both ends of the contraction portion extend obliquely upward in opposite directions to form an expansion portion.
4. The dustproof heat dissipation device according to claim 1, characterized in that: Each blade is also provided with outer fins which are arranged at intervals along the length direction of the blade.
5. The dustproof heat dissipation device according to claim 4, characterized in that: The upper end of the outer fin is spaced from the upper end of the blade, so that when the blades are stacked, the inner surface of the upper blade will not contact the outer fin of the outer surface of the next blade.
6. The dustproof heat dissipation device according to claim 5, characterized in that: The inner surface of each blade is also provided with inner fins spaced apart along the length direction of the blade.
7. The dustproof heat dissipation device according to claim 6, characterized in that: The lower end of the inner fin is spaced from the lower end of the blade, so that when the blades are stacked, the outer surface of the next blade will not contact the inner fin on the inner surface of the previous blade.
8. The dustproof heat dissipation device according to claim 6, characterized in that: The inner fins and the outer fins are staggered in the blade length direction.
9. The dustproof heat dissipation device according to claim 1, characterized in that: The installation frame is a rectangular frame.
10. The dustproof heat dissipation device according to claim 1, characterized in that: The mounting frame is mounted on the heat dissipation port through a snap-fit structure.