A computer external heat dissipation enhancement device

Abstract

The present invention discloses a computer external heat dissipation enhancement device, comprising a computer case, a heat dissipation fan is arranged on one side of the computer case, the heat dissipation fan comprises a square outer frame, and a magnetic attraction mechanism is arranged between the four corners of the outer frame and the computer case, comprising a magnet 1, and a magnet 2 is arranged at the bottom end of the magnet 1. The device controls the switch of the magnetic attraction force, and only needs to stick the heat dissipation fan to the surface of the computer case, and then simply press the handle to make the heat dissipation fan magnetically attracted to the surface of the computer case. The operation is simple and convenient. When dismantling, only a small deflection of the bracket in the direction of the compression spring is required to drive the roller needle to move to release the one-way locking state, and the hole belt can be ejected through its own elasticity, and drive the magnet 1 to reverse 180 degrees to close the external magnetic force of the heat dissipation fan, and the heat dissipation fan can be easily removed to achieve quick disassembly and assembly between the heat dissipation fan and the computer case, and the magnetic attraction installation is reliable and stable.

Description

Technical Field

[0001] The present invention relates to the field of computer technology, and more specifically, to a computer external heat dissipation enhancement device. Background Art

[0002] When a computer is running at high power continuously, its internal graphics card, CPU, GPU and other components will generate serious heat. The heat needs to be forced to cool through the computer's chassis cooling fan. This includes computers with water cooling, which do not have a compressor. Therefore, the heat is ultimately dissipated by forcing the water tank part with a fan. However, the number of cooling fans that a computer can accommodate is limited. Therefore, during continuous high-intensity computing, the cooling fan installed in the computer itself will gradually fail to meet the heat dissipation needs, resulting in the gradual accumulation of heat and the gradual increase in computer temperature until it affects the normal operation of the computer. Therefore, computer external cooling can solve the above problems to a certain extent.

[0003] However, the existing ordinary computer case design does not have a preset external cooling fan installation position, and it is difficult to be compatible with external cooling fans of various specifications. Therefore, installation often requires operations such as punching holes in the original case. These installation methods cause irreversible damage to the case. Therefore, in order to optimize the installation and use of computer external cooling fans, a computer external heat dissipation enhancement device is proposed. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the problems in the prior art that external computer heat dissipation devices are inconvenient to disassemble and assemble and have poor compatibility, the present invention provides an external computer heat dissipation enhancement device to solve the problems mentioned in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a computer external heat dissipation enhancement device, comprising a computer case, a heat dissipation fan is arranged on one side of the computer case, the heat dissipation fan comprises a square outer frame, and a magnetic attraction mechanism is arranged between the four corners of the outer frame and the computer case, which comprises a magnet 1, a magnet 2 is arranged at the bottom end of the magnet 1, the N pole and the S pole of the magnet 1 and the magnet 2 are magnetically attracted with an iron core, a gear is arranged at the top of the magnet 1, the magnet 1 and the iron core on the peripheral wall are rotatably connected to the outer frame through the gear, and the magnet 2 is fixedly sleeved with the outer frame through the iron core on the peripheral wall, pressing handles are arranged on both sides of the outer frame, and hole belts are arranged on both sides of the pressing handles, the hole belts are slidably plugged into the outer frame, and the hole belts are matched and meshed with the gears.

[0008] The present invention is further configured as follows: the magnet material is neodymium magnet, the magnet one and the magnet two are both cylindrical and have the same size, the magnet one and the magnet two are magnetized along the diameter direction of their cylinders, the iron core is arc-shaped, and the curvature of the iron core is less than 180 degrees, the pair of iron cores attracted by the magnet one are symmetrically distributed about the magnet one, and the pair of iron cores attracted by the magnet two are symmetrically distributed about the magnet two, and the size of the iron core along its axial direction is greater than the cylindrical height of the magnet one.

[0009] The present invention is further configured such that the magnet 1 and a pair of iron cores on its peripheral wall are fixedly sleeved on the bottom of the gear, and the iron core, magnet 1, magnet 2 and the gear are coaxial.

[0010] The present invention is further configured as follows: a slide groove is provided along an arc path at the edge corner of the outer frame, and the arc path of the slide groove is coaxial with the cooling fan, an assembly groove 1 is provided at one end of the slide groove close to the pressing handle, an inner wall of one side of the assembly groove 1 is smoothly connected with the side wall of the slide groove, and an opening of the end of the assembly groove 1 close to the pressing handle is smaller than an opening of the end of the assembly groove 1 connected to the slide groove, a roller needle is extruded between the hole band and the assembly groove 1, and a pad is fitted on the side of the roller needle close to the slide groove, a spring is provided between the side of the pad block away from the roller needle and the inner wall of the assembly groove 1, and a pair of springs are provided in parallel.

[0011] The present invention is further configured such that a gasket is provided on the side of the needle roller away from the hole belt, and the gasket is fitted on the inner wall of the first assembly groove, and the first assembly groove is provided with a rib protruding on the opening edge, and the rib is provided on the side of the gasket away from the slide groove.

[0012] The present invention is further configured such that a shaft sleeve is rotatably sleeved on the top end of the needle roller, a bracket is fixedly connected to the motor of the cooling fan, and the bracket is fixedly sleeved on the outer wall of the shaft sleeve.

[0013] The present invention is further configured such that four corners of the outer frame are each provided with a second assembly groove, and the second assembly groove is circular, and the first magnet, the second magnet, the iron core and the gear are all sleeved in the second assembly groove.

[0014] The present invention is further configured such that a short shaft is provided at one end of the gear away from the first magnet, and rollers are provided between the peripheral wall of the short shaft and the inner wall of the second assembly groove, and the rollers are distributed in a ring array about the short shaft.

[0015] The present invention is further configured such that an annular groove is formed on the peripheral wall of the short shaft, the roller is rollingly connected to the annular groove, and the inner wall of the second assembly groove is clamped with a retaining spring at the top and bottom ends of the roller.

[0016] The present invention is further configured such that a notch is provided on the inner wall of the assembly groove at the position of the gear teeth, the notch is communicated with the slide groove, and the gear teeth of the gear mesh with the hole band through the notch.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a computer external heat dissipation enhancement device, which has the following beneficial effects: the device controls the switch of the magnetic attraction force, and the cooling fan only needs to be attached to the surface of the computer case, and then the cooling fan can be magnetically attracted to the surface of the computer case by simply pressing the handle. The operation is simple and convenient. When removing, it is only necessary to slightly deflect the bracket in the direction of the compression spring to drive the roller needle to move to release the one-way locking state. The hole belt can pop out through its own elasticity and drive the magnet to reverse 180 degrees to turn off the external magnetic force of the cooling fan. The cooling fan can be easily removed to achieve quick disassembly and assembly between the cooling fan and the computer case, and the magnetic attraction installation is reliable and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a computer external heat dissipation enhancement device.

[0020] Figure 2 The figure is a schematic diagram of the cooling fan structure of a computer external cooling enhancement device.

[0021] Figure 3 For computer external heat dissipation enhancement equipment Figure 2 Schematic diagram of the structure from the back side.

[0022] Figure 4 This is a schematic diagram of the partial structure of the cooling fan of a computer external heat dissipation enhancement device.

[0023] Figure 5 For computer external heat dissipation enhancement equipment Figure 4 A is an enlarged view of the structure.

[0024] Figure 6 For computer external heat dissipation enhancement equipment Figure 4 Schematic diagram of the local structure.

[0025] Figure 7 For computer external heat dissipation enhancement equipment Figure 6 Schematic diagram of the local structure.

[0026] Figure 8 For computer external heat dissipation enhancement equipment Figure 6 A magnified view of the structure of B.

[0027] Fig. 9 For computer external heat dissipation enhancement equipment Figure 6Schematic diagram of the structure after cutting the middle assembly groove 2.

[0028] Fig.10 For computer external heat dissipation enhancement equipment Fig. 9 Schematic diagram of the local structure.

[0029] Fig.11 This is an exploded view of the magnet and core assembly structure of a computer external heat dissipation enhancement device.

[0030] Fig.12 This is a schematic diagram of the magnetization direction of the magnet in the computer external heat dissipation enhancement device.

[0031] Fig.13 Schematic diagram of the magnetic field lines when the magnetic attraction mechanism of the computer external heat dissipation enhancement device is turned on.

[0032] Fig.14 Schematic diagram of the magnetic field lines when the magnetic attraction of the magnetic attraction mechanism of the computer external heat dissipation enhancement device is closed.

[0033] In the figure: 1, computer case; 2, cooling fan; 201, outer frame; 202, magnet 1; 203, magnet 2; 204, iron core; 205, gear; 206, pressing handle; 207, hole belt; 208, slide groove; 209, assembly groove 1; 210, needle roller; 211, cushion block; 212, spring; 213, gasket; 214, rib; 215, bushing; 216, bracket; 217, assembly groove 2; 218, short shaft; 219, roller; 220, annular groove; 221, retaining spring; 222, notch. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the implementation regulations.

[0035] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0036] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0037] Example 1, please refer to Figure 1 - Fig.13A computer external heat dissipation enhancement device comprises a computer case 1, a heat dissipation fan 2 is arranged on one side of the computer case 1, the heat dissipation fan 2 comprises a square outer frame 201, and a magnetic attraction mechanism is arranged between the four corners of the outer frame 201 and the computer case 1, which comprises a magnet 1 202, a magnet 203 is arranged at the bottom end of the magnet 1 202, the N pole and the S pole of the magnet 1 202 and the magnet 2 203 are magnetically attracted with an iron core 204, a gear 205 is arranged at the top of the magnet 1 202, the magnet 1 202 and the iron core 204 on the peripheral wall thereof are rotatably connected to the outer frame 201 through the gear 205, and the magnet 203 is fixedly sleeved with the outer frame 201 through the iron core 204 on the peripheral wall thereof, pressing handles 206 are arranged on both sides of the outer frame 201, and hole belts 207 are arranged on both sides of the pressing handles 206, the hole belts 207 are slidably plugged into the outer frame 201, and the hole belts 207 are matched and meshed with the gear 205.

[0038] Specifically, the magnet material is neodymium magnet, magnet one 202 and magnet two 203 are both cylindrical and have the same size, magnet one 202 and magnet two 203 are magnetized along the diameter direction of their cylinders, the iron core 204 is arc-shaped, and the curvature of the iron core 204 is less than 180 degrees, the pair of iron cores 204 attracted by magnet one 202 are symmetrically distributed about magnet one 202, and the pair of iron cores 204 attracted by magnet two 203 are symmetrically distributed about magnet two 203, the size of the iron core 204 along its axial direction is greater than the cylindrical height of magnet one 202, magnet one 202 and the pair of iron cores 204 on its peripheral wall are fixedly sleeved on the bottom of the gear 205, and the iron core 204, magnet one 202, magnet two 203 and the gear 205 are coaxial.

[0039] The working principle and advantages of the device are further explained in combination with the prior art: since most computer cases on the market use iron cases, the device uses magnetic suction to quickly install the cooling fan 2. However, unlike general magnetic suction, the adsorption magnetic force provided by the present invention is controllable, so that the cooling fan 2 is not only easy to install, but also easy to disassemble, which can greatly optimize the operating experience of the device. The cooling fan 2 can be adsorbed on the fan exhaust position of the computer case 1 to enhance drainage, and can also be adsorbed on a fanless and non-opening position to enhance the heat dissipation of the outer wall of the shell.

[0040] To achieve the above purpose, we first explain the magnetic control principle of the device. Figures 10 to 14In order to facilitate the operation of the rotation of magnet 1 202, the device uses a cylindrical shape, and for structural matching, magnet 2 203 is also selected as a cylindrical shape. However, unlike the axial magnetization direction of general cylindrical magnets, magnet 1 202 and magnet 2 203 are both radially magnetized, which makes half of the column of magnet 1 202 and magnet 2 203 an N pole and the other half of the column is an S pole. As shown in 12, after the N pole and S pole of magnet 1 202 and magnet 2 203 are both attached with iron core 204 and adsorbed together, the characteristics of their magnetic fields will be affected by the magnetic pole directions of magnet 1 202 and magnet 2 203. Fig.13 and Fig.14 ,in Fig.13 , when the polarity directions of magnet 1 202 and magnet 2 203 are the same, most of the magnetic flux lines of magnet 1 202 and magnet 2 203 will be emitted to the outside from the end of the iron core 204 connected to the N pole under the constraint of the iron core 204, and then return from the iron core 204 connected to the S pole. In this way, a large number of magnetic flux lines are concentrated at the end of the iron core 204, so that the end of the iron core 204 generates a strong magnetic force and firmly adsorbs on the computer case 1. After rotating magnet 1 202 180 degrees, as shown in FIG. Fig.14 As shown, the magnetic flux lines emitted from the N pole are constrained by the iron core 204 and take a shortcut to enter the adjacent S pole, which causes the magnetic force at the end of the iron core 204 to be very weak, so that the device no longer generates magnetic attraction to the computer case 1, thereby easily removing the cooling fan 2 from the computer case 1.

[0041] According to the above magnetic attraction control principle, the gear 205 of the device is made of magnetic conductive material. Fig.13 In the state shown, the magnetic field at the top of the iron core 204 on the magnet 1 202 is suppressed, while the magnetic field at the bottom of the iron core 204 on the magnet 2 203 is further strengthened.

[0042] The magnet 1 202 is reliably rotated by the following structure: the four corners of the outer frame 201 are provided with a second assembly groove 217, and the second assembly groove 217 is circular, the magnet 1 202, the second magnet 203, the iron core 204 and the gear 205 are all sleeved in the second assembly groove 217, and the end of the gear 205 away from the magnet 1 202 is provided with a short shaft 218, and a roller 219 is provided between the peripheral wall of the short shaft 218 and the inner wall of the second assembly groove 217, and the rollers 219 are distributed in a ring array about the short shaft 218, and the peripheral wall of the short shaft 218 is provided with a short shaft 218. An annular groove 220 is provided, and the roller 219 is rollingly connected with the annular groove 220, and the inner wall of the second assembly groove 217 is located at the top and bottom of the roller 219 and is clamped with a retaining spring 221, and the inner wall of the assembly groove is located at the gear teeth of the gear 205 and is provided with a notch 222, and the notch 222 is connected with the slide groove 208, and the gear teeth of the gear 205 are engaged with the hole belt 207 through the notch 222, and the three rollers 219 roll between the second assembly groove 217 and the short shaft 218 to support the rotation of the gear 205 and the magnet 1 202 and reduce the rotation resistance, refer to Fig.10 The main purpose of the retaining spring 221 and the annular groove 220 is, firstly, to prevent the roller 219, the gear 205 and other components from falling off, and secondly, to prevent the end face of the roller 219 from rubbing against the surface of the gear 205, so as to reduce sliding friction and reduce friction. When the magnet 202 rotates nearly one hundred and eighty degrees, the magnetic attraction will automatically guide the magnet 202 and the iron core 204 to align their positions.

[0043] In summary, the switch for controlling the magnetic attraction force realizes quick disassembly and assembly between the cooling fan 2 and the computer case 1, and makes the magnetic attraction installation reliable and stable.

[0044] Example 2, please refer to Figure 6 - Fig.11A computer external heat dissipation enhancement device, comprising a slide groove 208 provided along an arc path at the corner of an outer frame 201, and the arc path of the slide groove 208 is coaxial with a heat dissipation fan 2, and an assembly groove 209 is provided at one end of the outer frame 201 located near the slide groove 208 and a pressing handle 206, and an inner wall of one side of the assembly groove 209 is smoothly connected with the side wall of the slide groove 208, and the opening of the end of the assembly groove 209 near the pressing handle 206 is smaller than the opening of the end of the assembly groove 209 connected to the slide groove 208, and a roller needle 210 is squeezed and arranged between the hole belt 207 and the assembly groove 209, and the roller needle 210 is arranged close to the side of the slide groove 208 There is a cushion block 211, and a spring 212 is arranged between the side of the cushion block 211 away from the needle roller 210 and the inner wall of the assembly groove 209, and a pair of springs 212 are arranged in parallel. A gasket 213 is arranged on the side of the needle roller 210 away from the hole belt 207, and the gasket 213 is fitted on the inner wall of the assembly groove 209. The assembly groove 209 is located at the edge of the opening and is provided with a rib 214, and the rib 214 is arranged on the side of the gasket 213 away from the slide groove 208. The top end of the needle roller 210 is rotatably sleeved with a shaft sleeve 215, and the motor of the cooling fan 2 is fixedly connected to a bracket 216, and the bracket 216 is fixedly sleeved with the outer wall of the shaft sleeve 215.

[0045] The device inserts a hole belt 207 made of non-magnetic stainless steel into a slide groove 208 by pressing a handle 206, and drives the gear 205 to rotate through the hole belt 207. The length and insertion depth of the hole belt 207 are designed to drive the gear 205 to rotate 180 degrees, so as to switch the polarity direction of the magnet 202 and realize the turning on or off of the magnetic force to the outside.

[0046] To achieve the above functions, it is necessary to prevent the hole belt 207 from rebounding due to its own elasticity after being inserted into the slide groove 208. Therefore, the device forms a simple anti-return structure through the assembly groove, the needle roller 210 and the spring 212. The needle roller 210 is pushed toward the narrow mouth of the assembly groove by the spring 212, so that the outer frame 201, the needle roller 210 and the hole belt 207 maintain good extrusion contact. When the hole belt 207 is inserted into the assembly groove, the friction force will push the needle roller 210 toward the wider end of the assembly groove, so that the hole belt 207 can be inserted smoothly. When the hole belt 207 rebounds outward, the friction between the hole belt 207 and the needle roller 210 will squeeze the needle roller 210 in a narrower direction, and generate a strong extrusion component force on the inner wall of the assembly groove 209 and the hole belt 207, thereby jamming the hole belt 207 and playing a role in preventing reverse movement.

[0047] Therefore, the device only needs to attach the cooling fan 2 with no external magnetic force to the surface of the computer case 1, and then simply press the handle 206 to make the cooling fan 2 magnetically attracted to the surface of the computer case 1. The operation is simple and convenient. When removing, it is only necessary to slightly deflect the bracket 216 in the direction of the compression spring 212 to drive the roller needle 210 to move to release the one-way locking state. The hole belt 207 can pop out through its own elasticity and drive the magnet 202 to reverse 180 degrees to turn off the external magnetic force of the cooling fan 2, and the cooling fan 2 can be easily removed.

[0048] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, welding is preferred for all fixed connections. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and deformations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A computer external heat dissipation enhancement device, comprising a computer case (1), characterized in that: A cooling fan (2) is arranged on one side of the computer case (1), the cooling fan (2) comprising a square outer frame (201), and a magnetic attraction mechanism is arranged between the four corners of the outer frame (201) and the computer case (1), comprising a first magnet (202), a second magnet (203) is arranged at the bottom end of the first magnet (202), the N poles and the S poles of the first magnet (202) and the second magnet (203) are magnetically attracted to an iron core (204), and a gear (205) is arranged at the top end of the first magnet (202). The first magnet (202) and the iron core (204) on the peripheral wall thereof are rotatably connected to the outer frame (201) via a gear (205), and the second magnet (203) is fixedly sleeved with the outer frame (201) via the iron core (204) on the peripheral wall thereof, both sides of the outer frame (201) are provided with pressing handles (206), and both sides of the pressing handles (206) are provided with hole belts (207), the hole belts (207) are slidably plugged into the outer frame (201), and the hole belts (207) are matched and meshed with the gear (205); The magnet material is neodymium magnet, the magnet one (202) and the magnet two (203) are both cylindrical and have the same size, the magnet one (202) and the magnet two (203) are magnetized along the diameter direction of the cylinder, the iron core (204) is arc-shaped, and the arc of the iron core (204) is less than 180 degrees, the pair of iron cores (204) attracted by the magnet one (202) are symmetrically distributed with respect to the magnet one (202), and the pair of iron cores (204) attracted by the magnet two (203) are symmetrically distributed with respect to the magnet two (203), and the size of the iron core (204) along its axial direction is greater than the cylinder height of the magnet one (202); The outer frame (201) has a sliding groove (208) formed along an arc path at an edge corner thereof, and the arc path of the sliding groove (208) is coaxial with the cooling fan (2). The outer frame (201) has an assembly groove (209) formed at one end of the sliding groove (208) close to the pressing handle (206). An inner wall of one side of the assembly groove (209) is smoothly connected to a side wall of the sliding groove (208), and an opening of the assembly groove (209) close to the pressing handle (206) is small. The assembly groove (209) is connected to an opening at one end of the slide groove (208), a needle roller (210) is extruded and arranged between the hole belt (207) and the assembly groove (209), and a cushion block (211) is arranged in contact with the side of the needle roller (210) close to the slide groove (208), and a spring (212) is arranged between the side of the cushion block (211) away from the needle roller (210) and the inner wall of the assembly groove (209), and a pair of springs (212) are arranged in parallel; A gasket (213) is provided on the side of the needle roller (210) away from the hole band (207), and the gasket (213) is fitted on the inner wall of the first assembly groove (209). The first assembly groove (209) is provided with a rib (214) protruding at the edge of the opening, and the rib (214) is provided on the side of the gasket (213) away from the slide groove (208).

2. The computer external heat dissipation enhancement device according to claim 1, characterized in that: The magnet one (202) and a pair of iron cores (204) on the peripheral wall thereof are fixedly sleeved on the bottom of the gear (205), and the iron core (204), the magnet one (202), the magnet two (203) and the gear (205) are coaxial.

3. The computer external heat dissipation enhancement device according to claim 2 is characterized in that: The outer frame (201) is provided with a second assembly groove (217) at four corners, and the second assembly groove (217) is circular, and the first magnet (202), the second magnet (203), the iron core (204) and the gear (205) are all sleeved in the second assembly groove (217).

4. The computer external heat dissipation enhancement device according to claim 3 is characterized in that: The top end of the roller needle (210) is rotatably sleeved with a shaft sleeve (215), the motor of the heat dissipation fan (2) is fixedly connected with a bracket (216), and the bracket (216) is fixedly sleeved with the outer wall of the shaft sleeve (215).

5. The computer external heat dissipation enhancement device according to claim 1 is characterized in that: A short shaft (218) is provided at one end of the gear (205) away from the first magnet (202), and rollers (219) are provided between the peripheral wall of the short shaft (218) and the inner wall of the second assembly groove (217), and the rollers (219) are distributed in a ring array with respect to the short shaft (218).

6. The computer external heat dissipation enhancement device according to claim 5, characterized in that: An annular groove (220) is formed on the peripheral wall of the short shaft (218), the roller (219) is rollingly connected to the annular groove (220), and the inner wall of the second assembly groove (217) is clamped with a retaining spring (221) at the top and bottom ends of the roller (219).

7. The computer external heat dissipation enhancement device according to claim 6, characterized in that: The inner wall of the assembly groove is provided with a notch (222) at the position of the gear teeth of the gear (205), the notch (222) is communicated with the slide groove (208), and the gear teeth of the gear (205) mesh with the hole band (207) through the notch (222).

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