A case fan for computers

Abstract

A case fan for computers, characterized in that it comprises the following: a subframe (3) which is provided with a mounting plate (31), wherein the mounting plate (31) comprises the integrated shaped circular part (312) and the integrated shaped arcuate part (313), wherein the circular part (312) is connected to the base plate of the subframe (3) via the arcuate part (313), a fan (4), wherein the pivot pin of the fan (4) is attached to the circular part (312), a PCB plate (32), wherein the PCB plate (32) partially contacts and is aligned with the mounting plate (31) and adapts its shape to the mounting plate (31), wherein another part of the PCB plate extends from the arc-shaped part (313) and the extended part is provided with an interface for electrical signal (321) for controlling rotation of the fan (4).

Description

Technical area

[0001] The present invention relates to the field of computer accessories and, more particularly, to a type of case fan for computers. Background technology

[0002] A computer fan is mounted on a mounting plate in the center of the lower frame. The mounting plate consists of a plate body, a PCB, and a motor controlled by the PCB. The PCB is connected to control wires that extend from the central circular plate of the mounting plate. The control wires must be neatly arranged during the fan installation process to prevent the control wires from interfering with the rotating blades, and there is also a risk of the wires becoming detached from the PCB.

[0003] During the installation of a computer fan, the way the components are connected can also speed up the installation. In some cases, multiple fans need to be used simultaneously; often, an additional mounting base is required, on which several fans can be mounted side by side using screws or other fastening methods. Invention content

[0004] In view of the shortcomings of the prior art, the present invention, in the first aspect, offers a type of case fan for computers, comprising: a subframe provided with a mounting plate comprising the integrated shaped circular part and the integrated shaped arcuate part, the circular part being connected to the base plate of the subframe (3) via the arcuate part; a fan, the pivot of which is attached to the circular part; a PCB board partially contacting and mating with the mounting plate (31) and conforming to the shape of the mounting plate, another part of the PCB board extending from the arcuate part, and the extended part being provided with an electrical signal interface for controlling fan rotation.

[0005] In some specific embodiments of this invention, there is a bend on the edge of the mounting plate that provides a placement groove into which sealant is poured.

[0006] In some specific embodiments of this invention, the bend is connected to support bars, wherein the support bars are twisted during extension toward the cylinder, and the curved surface formed by the twisting serves to change wind direction after start-up of the fan.

[0007] In some specific embodiments of this invention, the bend is connected to support bars, wherein the support bars are arranged along the bend of the circular part and the ends of the support bars facing away from the bend are connected to the cylinder.

[0008] In some specific embodiments of this invention, the circular portion includes some reinforcing strips radiating from the center of the circle toward the bend.

[0009] In some specific embodiments of this invention, the lower frame and the upper cover are combined by means of clips, and a fascia plate is positioned between the lower frame and the upper cover.

[0010] In some specific embodiments of this invention, the aperture plate consists of a light-transmitting part and a light source.

[0011] In some specific embodiments of this invention, the light-transmitting part is provided with a projection that passes through the slot of the top cover and conforms in shape to the slot of the top cover.

[0012] In some specific embodiments of this invention, a first side and a second side are provided after combining the subframe and the top cover, wherein the first side is provided with an output terminal and some positioning projections electrically connected to the electrical signal interface, and wherein the second side is provided with an input terminal electrically connected to the output terminal and the electrical signal interface.

[0013] In some specific embodiments of this invention, the first side is clipped to a control unit, the control unit comprising a snap-on cover and a slotted plate. A cable channel is provided between the snap-on cover and the slotted plate for attaching the control cable, and the control cable passes through the cable channel and is connected to the input port.

[0014] This invention offers, under the second aspect, a kit of case fans which is created by connecting case fans for computers under the first aspect in series.

[0015] The advantages of this invention are that: 1 The fan of this invention is composed of the top cover, the bottom frame, the bezel and combo clips and the installation is highly efficient. 2. the plurality of case fans of this invention are electrically connected to each other after combination based on their own structure, and a power supply control device can be used to supply power to one case fan or a kit of multiple case fans. 3. The mounting plate in the middle of the subframe is made of a one-piece molding, and the shape of the PCB board is adapted to this one-piece molding to avoid wiring here, so that installation by personnel is facilitated and the current stability of the fan seat is increased. Explanations of figures Fig. Fig. 1 shows a structural view of the subframe of this invention; Fig. 2 shows an exploded view below the first view for case fans for computers of this invention; Fig. 3 shows an exploded view below the second view for case fans for computers of this invention; Fig. Figure 4 shows the first view of the control unit and the aperture plate of this invention; Fig. Figure 5 shows the second view of the control unit and the aperture plate of this invention; Fig. 6 shows the first view of the kit of several combined case fans of this invention; Fig. 7 shows the second view of the kit of several combined case fans of this invention; Meanings of the characters in figures:

[0016] 1. the top cover; 13. top cover slot; 21. control unit; 211. snap cover; 212. slot plate; 213. cable duct; 214. port; 22. bezel plate 221. positioning hole; 222. protrusion; 3. subframe; 31. mounting plate; 311. bend; 312. the circular part; 3121. reinforcement bar; 3122. central axis; 313. the arc-shaped part; 314. cylinder; 3141. the conductive sticker; 32. PCB board; 321. electrical signal interface; 33. subframe base plate; 34. support bar; 4. fan; 5. clip; 51. clip part; 52. clip hole; 7. the first chassis fan; 71. the first side; 711. Output connector; 712. Positioning recess; 6. The second chassis fan; 61. The second side; 611. Input connector; 612. Positioning protrusion; 8. Positioning column; 9. Corner column; 10. Column Detailed implementation

[0017] From the further detailed explanations of the embodiments of this invention in conjunction with the following accompanying figures and specific embodiments, those skilled in the art will more clearly and thoroughly appreciate the further features, advantages, and effects of this invention. In the following illustrations, "top," "bottom," "front," "rear," "peak," "bottom," "vertical," "horizontal," and other spatial and orientational terms may be used to describe the embodiments of this invention. It should be understood that such terms are used only to facilitate illustrations of the embodiments shown in the figures and do not require that the actual devices be constructed or operated in a particular manner.In the following illustrations, technical terms such as "connection", "terminology", "fastening" and "bonding" can refer to a direct connection between two elements or structures without other elements or structures, can also refer to an indirect connection between two elements or structures through intervening elements or structures, unless otherwise expressly stated here. The technical term "driving connection" means that there is a transmission of force and resulting relative movement between two or more elements or structures in a connecting relationship. The use of ordinal numbers such as "first", "second", etc. is only to distinguish the elements listed and has no meaning of order or priority unless otherwise expressly stated here.

[0018] In this application, the technical terms "assembly", "linkage", "connection", "fastening", etc. should be understood in a broad sense unless expressly provided and limited otherwise, e.g., it may be a fixed connection, a detachable connection, or a one-piece part; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection via an intermediate medium; it may be a connection within the two elements or an interactive relationship between two elements. Ordinary technicians in this field can understand the specific meanings of the above technical terms in this application according to detailed circumstances. Detailed implementation

[0019] From the further detailed explanations of the embodiments of this invention in conjunction with the following accompanying figures and specific embodiments, those skilled in the art will more clearly and thoroughly appreciate the further features, advantages, and effects of this invention. In the following illustrations, "top," "bottom," "front," "rear," "peak," "bottom," "vertical," "horizontal," and other spatial and orientational terms may be used to describe the embodiments of this invention. It should be understood that such terms are used only to facilitate illustrations of the embodiments shown in the figures and do not require that the actual devices be constructed or operated in a particular manner.In the following illustrations, technical terms such as "connection", "terminology", "fastening" and "bonding" can refer to a direct connection between two elements or structures without other elements or structures, can also refer to an indirect connection between two elements or structures through intervening elements or structures, unless otherwise expressly stated here. The technical term "driving connection" means that there is a transmission of force and resulting relative movement between two or more elements or structures in a connecting relationship. The use of ordinal numbers such as "first", "second", etc. is only to distinguish the elements listed and has no meaning of order or priority unless otherwise expressly stated here.

[0020] In this application, the technical terms "assembly", "linkage", "connection", "fastening", etc. should be understood in a broad sense unless expressly provided and limited otherwise, e.g., it may be a fixed connection, a detachable connection, or a one-piece part; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection via an intermediate medium; it may be a connection within the two elements or an interactive relationship between two elements. Ordinary technicians in this field can understand the specific meanings of the above technical terms in this application according to detailed circumstances.

[0021] With reference to the Fig. 1, a case fan for computer 4 includes a subframe 3 provided with a mounting plate 31. The mounting plate 31 includes an integrally formed circular portion 312 and an integrally formed arcuate portion 313, and the circular portion 312 is connected to the base plate of the subframe 33 through the arcuate portion 313. The center of the circular portion 312 is fixedly connected to a central axis 3122, and the central axis 3122 serves as the pivot point of the fan 4, and the fan 4 is mounted on the circular portion 312 through the pivot pin of the central axis 3122. The circular portion 312 has several reinforcing bars 3121 radiating from the center of the circle toward the bend 311.

[0022] A partial bend is present at the edge of the mounting plate 31, and the bend 311 is created by such bending movement. The mounting plate 31 forms a placement groove through the bend 311, into which sealant is poured. The PCB board 32 is protected from erosion by moisture or dust by the pouring of sealant.

[0023] In some optional embodiments, some support bars 34 are arranged along the edge of the circular part 312, and the ends of some support bars 34 are connected to the bend 311, and the ends of the support bars 34 facing away from the bend 311 are connected to the cylinder 314. The support bars 34 extend toward the cylinder 314, and it rotates around the central axis in the extending direction during the process to form an arcuate inclination, and the arcuate inclination formed by this twisting can be used to change the wind direction.

[0024] With reference to the Fig. 2 and Fig. 3, in some optional embodiments, the lower frame 3 and the upper cover 1 are combined by means of clips 5. The clip 5 comprises the clip part 51 provided on the lower frame 3 and the clip hole 52 provided on the upper cover 1. When the lower frame 3 and the upper cover 1 are buckled, the clip part 51 engages the clip hole 52, and the corner column 9, which is firmly connected to the upper cover 1, extends into the column 10, which is firmly connected to the lower frame 3.

[0025] With reference to the Fig. 4 and Fig. 5, in some optional embodiments, a bezel plate 22 is positioned between the subframe 3 and the top cover 1. It is positioned such that the upper and lower surfaces of the bezel plate 22 are provided with positioning holes 221. It is fixed by passing the positioning column 8 laid out on the subframe 3 and the top cover 1 through the positioning holes 221.

[0026] The aperture plate 22 may be composed of a light-transmitting portion and a light source, and the light-transmitting portion may be optionally made of polycarbonate, polymethyl methacrylate, polyethylene terephthalate, etc., and the upper surface of the light-transmitting portion is fixedly connected to a projection 222, wherein the projection 222 passes through the slit of the upper cover 13 and is adapted to the shape of the slit of the upper cover 13, so that the light shines from the projection 222 during use, which increases the sense of beauty.

[0027] With reference to the Fig. 2, Fig. 3, Fig. 6 and Fig. 7, the mounting plate 31 contacts the PCB board 32 and is matched to the PCB board. A part of the PCB board 32 conforms in shape to the mounting plate 31, and another part extends from the arc-shaped part 313 to the base plate of the subframe 33, and the extended part of the PCB board 32 is provided with an electrical signal interface 321, and the electrical signal interface 321 is used to control the rotation of the fan 4. The electrical signal interface 321 is also electrically connected to the input terminal 611 and the input terminal 711 through a conductive sticker 3141 wrapped around the surface of the cylinder 314. The conductive sticker 3141 is optionally a thin copper sheet or a copper wire group, and the input terminal 611 and the output terminal 711 are optionally made of a copper or aluminum sheet.

[0028] The control unit 21 includes a snap-on cover 211 and a slotted plate 212. After the second side 61 of the case fan is snapped onto the control unit 21, a cable duct 213 is present between the snap-on cover 211 and the slotted plate 212. The cable duct 213 serves to attach the control cable, and the control cable passes through the cable duct 213 and is connected to the input connector 611. The control cable serves as the power supply for the fan 4.

[0029] Control unit 21 supplies power to one case fan when connected to the case fan. If the case fan is also connected to other case fans, control unit 21 also supplies power to multiple case fans. The following is shown: With reference to the Fig. 6 and Fig.7, the first side 71 and the second side 72 are formed after the subframe 3, the top cover 1, and the clip 5 are combined. The surface of the first side 71 is provided with some positioning recesses 712 and an output terminal 711, and the second side 61 is provided with some positioning protrusions 612 and an input terminal 611. Some positioning recesses 712 and some positioning protrusions 612 can optionally be four.

[0030] In an optional simple example of assembling two chassis fans, when the first side 71 of the first chassis fan 7 and the second side 61 of the second chassis fan 6 are cooperatively buckled by the positioning projection 612 and the positioning recess 712, the output terminal 711 of the first chassis fan 7 is electrically connected to the input terminal 611 of the second chassis fan 6 so that the first chassis fan 7 controls the turning on and off of the second chassis fan 6.

[0031] Similarly, the outlet port 711 of the second chassis fan 6 may also be connected to the inlet port 611 of another chassis fan so that only one control unit 21 can control multiple chassis fans without a mounting plate 31 by relying only on their own structural combinations.

[0032] The above embodiments are only for describing the technical solutions of this application, not for limitation. Although this application has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that they may still change the technical solutions recorded in the above embodiments or make equivalent substitutions for some of the technical features included therein. However, such changes or substitutions do not make the essence of the respective technical solutions deviate from the spirit and scope of the technical solutions of the respective embodiments of this application. They are intended to be within the scope of this application.

[0033] The above embodiments are only for describing the technical solutions of this application, not for limitation. Although this application has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that they may still change the technical solutions recorded in the above embodiments or make equivalent substitutions for some of the technical features included therein. However, such changes or substitutions do not make the essence of the respective technical solutions deviate from the spirit and scope of the technical solutions of the respective embodiments of this application. They are intended to be within the scope of this application.

Claims

[1] A case fan for computers, characterized by that it includes the following: a subframe (3) provided with a mounting plate (31), the mounting plate (31) comprising the integrated shaped circular part (312) and the integrated shaped arcuate part (313), the circular part (312) being connected to the base plate of the subframe (3) via the arcuate part (313), a fan (4), the pivot pin of the fan (4) being attached to the circular part (312), a PCB plate (32), the PCB plate (32) partially contacting and being matched to the mounting plate (31) and adapting in shape to the mounting plate (31), another part of the PCB plate extending from the arcuate part (313), the extended part being provided with an electrical signal interface (321) for controlling rotation of the fan (4). [2] A computer case fan according to claim 1, characterized by that a bend (311) is present at the edge of the mounting plate (31), the bend (311) representing a placement groove in which sealant is poured. [3] A computer case fan according to claim 1 or claim 2, characterized by that the bend (311) is connected to support strips (34), wherein the support strips (34) are twisted during the extension in the direction of the cylinder (314) and wherein the curved surface formed by the twisting serves to change the wind direction after the fan has started, and / or that the bend (311) is connected to support strips (34), wherein the support strips (34) are arranged along the bend (311) of the circular part (312) and the ends of the support strips (34) facing away from the bend (311) are connected to the cylinder (314). [4] A computer case fan according to claims 1 to 3, characterized bythat the circular part (312) has some reinforcing strips (3121) which radiate from the center of the circle in the direction of the bend (311). [5] A computer case fan according to claim 3 or claim 4, characterized by that the lower frame (3) and the upper cover (1) are combined with each other by means of clips (5) and a cover plate (22) is positioned between the lower frame (3) and the upper cover (1). [6] A computer case fan according to claim 5, characterized by that the aperture plate (22) consists of a translucent part and a light source. [7] A computer case fan according to claim 6, characterized by that the translucent part is provided with a projection (222), wherein the projection (222) passes through the slot of the upper cover (1) and adapts in shape to the slot of the upper cover (1). [8] A computer case fan according to any one of claims 5 to 7, characterized by that a first side (71) and a second side (61) are present after combining the subframe (3) and the top cover (1), wherein the first side (71) is provided with an output terminal (711) and some positioning projections (612), wherein the output terminal (711) is electrically connected to the electrical signal interface (321), and wherein the second side (61) is provided with an input terminal (611), wherein the input terminal (611) is electrically connected to the output terminal (711) and the electrical signal interface (321). [9] A computer case fan according to claim 8, characterized bythat the first side (71) is buckled with a control device (21), wherein the control device (21) comprises a snap-on cover (211) and a slotted plate (212), wherein a cable duct (213) is present between the snap-on cover (211) and the slotted plate (212) and serves to attach the control cable, and wherein the control cable passes through the cable duct (213) and is connected to the input terminal (611). [10] A kit of downstream case fans for computers, the kit being made by strapping together a case fan according to claim 9 and several case fans according to claim 8.

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