Combined fan capable of being quickly disassembled and assembled

Abstract

The utility model discloses a combined fan capable of being quickly assembled and disassembled, which consists of at least two fan units which are electrically conducted, a first connector and a second connector are respectively arranged on two sides of each fan unit, a first magnet is arranged in each first connector, the end face of each first magnet is exposed on one side face of each fan unit, and a second magnet is arranged in each second connector and is exposed on the other side face of each fan unit. The second magnet end surface is exposed on the other side surface of the fan unit; after the side faces of the two adjacent fan units are in butt joint, the first connector of the previous fan unit and the second magnet of the second connector of the next fan unit are in magnetic attraction alignment through the first magnet so as to be in butt joint conduction, the two adjacent fan units are attracted and fixed through the first magnet and the second magnet so as to form a quick disassembly and assembly structure, the assembly process is extremely simple, and the assembly efficiency is improved. And the connector does not need to be inserted manually, so that the assembly difficulty is simplified, the assembly efficiency is improved, rapid assembly is realized, the number of parts is small, the cost is lower, the overall size is smaller, and the small-space installation requirement can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heat dissipation technical field, especially to a quick dismounting and assembling combination fan. BACKGROUND

[0002] With the increase of power electronic equipment power, it is necessary to use a cooling fan to forcibly cool the heat dissipation area of the power electronic equipment. In actual use, multiple fans need to be assembled to form a fan system in some cases, thereby increasing the air volume and improving the cooling effect.

[0003] The Chinese utility model patent with application number 202322946591.9 discloses a fan module, a heat dissipation structure, and a power electronic device. The fan module includes a module support and at least one fan module. The fan module is provided with a first electrical connection part. The module support is provided with a second electrical connection part and a third electrical connection part electrically connected to the second electrical connection part. The second electrical connection part is used to electrically connect with the control circuit inside the equipment shell. The third electrical connection part is used to adaptively connect with the first electrical connection part in a one-to-one manner. When the fan module is installed on the module support, the first electrical connection part and the third electrical connection part are connected in a one-to-one adaptive manner. Therefore, during the disassembly, repair, and maintenance of the fan module, it is not necessary to disassemble the entire machine-related electronic devices inside the power electronic equipment. Moreover, when the fan module is disassembled from the fan module, it is not necessary to disassemble the electrical connection position separately. The operation is very simple, and the convenience of disassembling and maintaining the cooling fan on the power electronic equipment is greatly improved.

[0004] However, the above-mentioned fan modules are independent individuals, and they need a module support as a carrier to load at least one fan module. The second and third electrical connection parts need to be provided on the module support to connect the first electrical connection part on the fan module. The structure is complex, and the volume is large, which cannot meet the small space installation requirement. Moreover, the fan module needs to be inserted into the module support in a positioning manner, which is not convenient to install and cannot realize quick assembly, causing great trouble to the user.

[0005] Therefore, the present inventors propose the following technical solutions. UTILITY MODEL CONTENT

[0006] The utility model aims to overcome the shortcomings of the prior art and provide a quick dismounting and assembling combination fan.

[0007] In order to solve the above technical problems, the utility model discloses the following technical scheme: the quick dismounting and assembling fan is formed by at least two electrically conductive fan units, first connectors and second connectors are arranged on the two sides of the fan unit respectively, a first magnet is arranged in the first connector, the end face of the first magnet is exposed on one side of the fan unit, a second magnet is arranged in the second connector, and the end face of the second magnet is exposed on the other side of the fan unit, the first connector of the previous fan unit is magnetically attracted and positioned with the second magnet of the second connector of the next fan unit after the side surfaces of the two adjacent fan units are abutted, the abutted connection is conducted, and the two adjacent fan units are adsorbed and fixed by the first magnet and the second magnet to form a quick dismounting and assembling structure.

[0008] Further, in the above technical scheme, the two sides of the fan unit are respectively provided with a plurality of first positioning blocks and first positioning grooves for positioning, and the first positioning block of the previous fan unit is inlaid and positioned with the first positioning groove of the next fan unit after the side surfaces of the two adjacent fan units are abutted.

[0009] Further, in the above technical scheme, the first connector comprises a first PCB plate, a plurality of first copper foil terminals and second copper foil terminals which are fixed on the first PCB plate by printing and are distributed in two layers in the up-down direction, a first window and a second window are arranged on one side of the fan unit, and the first copper foil terminal and the second copper foil terminal are respectively exposed in the first window and the second window.

[0010] Further, in the above technical scheme, a first accommodating opening is arranged on the first PCB plate, the first magnet is arranged in the first accommodating opening and located between the first copper foil terminal and the second copper foil terminal.

[0011] Further, in the above technical scheme, the inner side of the bottom shell of the fan unit is further provided with a first mounting groove, a first L-shaped limiting plate and a second L-shaped limiting plate located on the two sides of the first mounting groove, and a stop block located on the rear side of the first mounting groove, the first magnet is integrally fixed in the stop block by in-mold forming, the first PCB plate is arranged in the first mounting groove, the two sides of the first PCB plate are inlaid in the first L-shaped limiting plate and the second L-shaped limiting plate respectively, and are limited by the first L-shaped limiting plate and the second L-shaped limiting plate, and the first PCB plate is installed on the periphery of the stop block through the first accommodating opening.

[0012] Further, in the above technical scheme, limiting flanges are formed on the two sides of the stop block, the limiting flanges are abutted on the periphery of the first accommodating opening of the first PCB plate to limit the first PCB plate, and the first magnet is in the shape of a Chinese character "K", and the front end face with a small size of the first magnet is exposed on the outer side of the bottom shell.

[0013] Further, in the technical scheme, the second connector comprises a plastic base, a plurality of first spring needles and second spring needles integrally fixed in the plastic base by in-mold forming and protruding out of the plastic base and arranged in two layers, a second PCB plate arranged at the rear end of the plastic base and welded with the first spring needles and the second spring needles, and a second magnet integrally fixed in the plastic base by in-mold forming and with the front end face of the second magnet exposed out of the end face of the plastic base.

[0014] Further, in the technical scheme, the second magnet is in the shape of a convex character, and the front end face with a small size of the second magnet is exposed out of the end face of the plastic base.

[0015] Further, in the technical scheme, the fan unit comprises a bottom shell, a circuit board and a motor assembly arranged on the bottom shell, a fan blade arranged on the motor assembly, and an upper shell sleeved on the bottom shell, and the first connector and the second connector are arranged on the two sides of the bottom shell.

[0016] Further, in the technical scheme, at least one plug is magnetically connected with the first connector and the second connector, the face of the plug in contact with the first connector or the second connector is provided with a third magnet, and the face of the plug in contact with the first connector or the second connector is also provided with a second positioning block or a second positioning groove.

[0017] After the technical scheme is adopted, the utility model has the following beneficial effects compared with the prior art: the utility model only needs to manufacture one type of fan, and does not need to use an additional carrier to load the fan unit. When at least two fan units need to be assembled to form a combined fan (i.e. a fan system), the two fan units only need to be butt-jointed on the outer sides, at this time, the first connector of the previous fan unit is magnetically attracted and positioned with the second magnet of the second connector of the next fan unit to butt-joint and conduct, and the two adjacent fan units are adsorbed and fixed by the first magnet and the second magnet to form a quick disassembly structure, so as to form a combined fan (i.e. a fan system). The whole assembly process is extremely simple, the first connector and the second connector of the two adjacent fan units can be automatically conducted by magnetic attraction and positioning, and manual plugging is not needed, thereby simplifying the assembly difficulty, improving the assembly efficiency, realizing quick assembly, and the utility model has strong market competitiveness because there is no additional carrier to load the fan unit, there are fewer parts, the cost is lower, and the overall size is smaller, which can meet the small space installation requirement. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the fan unit in the utility model;

[0019] Figure 2is a perspective view of the fan unit from another angle in the utility model;

[0020] Figure 3 is an exploded view of the fan unit in the utility model;

[0021] Figure 4 is a perspective view of the second connector in the utility model;

[0022] Figure 5 is an internal structure view of the utility model;

[0023] Figure 6 is an exploded view of the second connector in the utility model;

[0024] Figure 7 is the assembly of the first connector in the utility model

[0025] Figure 8 is a perspective view of the utility model;

[0026] Figure 9 is a sectional view of the utility model;

[0027] Figure 10 is a perspective view of the fan unit and the plug in the utility model;

[0028] Figure 11 is a perspective view of the first plug in the utility model;

[0029] Figure 12 is a perspective view of the second plug in the utility model. DETAILED DESCRIPTION

[0030] The utility model is further illustrated below in combination with specific embodiments and drawings.

[0031] See Figures 1-12 As shown in the figure, it is a kind of quick dismounting and combination fan, which is formed by at least two electrically conductive fan units 1, can form fan system, and then realize increasing air volume and improving air cooling effect.

[0032] The first connector 2 is provided with a first magnet 21, and the second connector 3 is provided with a second magnet 31.

[0033] In order to make the assembly structure of the adjacent two fan units 1 more stable, the following design is made: the two sides of the fan unit 1 are respectively provided with a plurality of first positioning blocks 101 and first positioning grooves 102 for positioning, and after the side surfaces of the adjacent two fan units 1 are butted, the first positioning block 101 of the upper fan unit 1 is inlaid and positioned with the first positioning groove 102 of the lower fan unit 1, so that the assembly structure of the adjacent two fan units 1 is more stable.

[0034] The first connector 2 comprises a first PCB plate 22 and a plurality of first copper foil terminals 23 and second copper foil terminals 24 fixed on the first PCB plate 22 by printing and arranged in two layers, which is simple in structure and does not need to be assembled, and the first copper foil terminals 23 and the second copper foil terminals 24 are directly manufactured when the first PCB plate 22 is manufactured; the fan unit 1 is provided with a first window 103 and a second window 104 on one side; the first copper foil terminals 23 and the second copper foil terminals 24 are exposed in the first window 103 and the second window 104, respectively, for the first spring needle 33 and the second spring needle 34 of the second connector 3 to be inserted and elastically contacted with the first copper foil terminals 23 and the second copper foil terminals 24, respectively, so as to ensure the stability of the connection.

[0035] The first PCB plate 22 is provided with a first accommodating opening 221, and the first magnet 21 is arranged in the first accommodating opening 221 and located between the first copper foil terminals 23 and the second copper foil terminals 24, i.e. the first magnet 21 is arranged in the first connector 2.

[0036] The fan unit 1 comprises a bottom shell 11, a circuit board (not shown) and a motor assembly (not shown) mounted on the bottom shell 11, a fan blade 12 mounted on the motor assembly, and an upper shell 13 sleeved on the bottom shell 11, and the first connector 2 and the second connector 3 are arranged on both sides of the bottom shell 11, respectively.

[0037] The fan unit 1 and the first PCB plate 22 are assembled as follows:

[0038] The inside of the bottom shell 11 of the fan unit 1 is further provided with a first mounting groove 111, a first L-shaped limiting plate 112 and a second L-shaped limiting plate 113 located on both sides of the first mounting groove 111, and a stop block 114 located at the rear side of the first mounting groove 111, the first magnet 21 is integrally fixed in the stop block 114 by in-mold forming, the first PCB plate 22 is loaded into the first mounting groove 111, and the two sides of the first PCB plate 22 are inlaid in the first L-shaped limiting plate 112 and the second L-shaped limiting plate 113, respectively, and are limited by the first L-shaped limiting plate 112 and the second L-shaped limiting plate 113, and the first PCB plate 22 is installed on the periphery of the stop block 114 through the first accommodating opening 221, so as to ensure that the first PCB plate 22 is stably installed in the bottom shell 11. The upper shell 13 further presses on the upper end surface of the first PCB plate 22, so as to ensure that the assembly structure of the first PCB plate 22 is more stable.

[0039] The limit flange 115 is arranged on both sides of the block 114, and abuts against the periphery of the first accommodating opening 221 of the first PCB 22 to limit the first PCB 22, thereby further ensuring the stability of the assembly structure of the first PCB 22 and the bottom shell 11.

[0040] The second connector 3 comprises a plastic seat 32, a plurality of first spring needles 33 and second spring needles 34 integrally fixed in the plastic seat 32 by in-mold forming and protruding out of the plastic seat 32 and arranged in two layers in up and down directions, and a second PCB 35 arranged at the rear end of the plastic seat 32 and welded with the first spring needles 33 and the second spring needles 34. The second magnet 31 is integrally fixed in the plastic seat 32 by in-mold forming, and the assembly structure is simple and stable. The front end face of the second magnet 31 is exposed to the outer face of the plastic seat 32.

[0041] The second magnet 31 is in the shape of a Chinese character "KU", and the assembly structure of the second magnet 31 and the plastic seat 32 is more stable. The front end face of the second magnet 31 with a small size is exposed to the outer face of the plastic seat 32. The second PCB 35 is further arranged on the rear end face of the second magnet 31, and can effectively prevent the second magnet 31 from being separated from the plastic seat 32.

[0042] In combination Figure 10 At least one of the first connector 2 and the second connector 3 is magnetically connected with a plug 4. The plug 4 is provided with a third magnet 41 on the face in contact with the first connector 2 or the second connector 3. The plug 4 is further provided with a second positioning block 42 or a second positioning groove 43 on the face in contact with the first connector 2 or the second connector 3.

[0043] That is, the utility model has two kinds of plugs 4. The first kind of plug 4 is provided with the second positioning block 42, as Figure 11 described above. The second kind of plug 4 is provided with the second positioning groove 43, as Figure 12 described above. When the plug 4 is in contact with the first connector 2, the third magnet 41 of the plug 4 is magnetically positioned with the first magnet 21 in the first connector 2, and the conductor 40 in the plug 4 is in conductive connection with the first connector 2. The plug 4 does not need to be aligned and inserted, and the conductive connection is very convenient, and blind insertion can be realized. When the plug 4 is in contact with the second connector 3, the third magnet 41 of the plug 4 is magnetically positioned with the second magnet 31 in the second connector 3, and the conductor 40 in the plug 4 is in conductive connection with the second connector 3. The plug 4 does not need to be aligned and inserted, and the conductive connection is very convenient, and blind insertion can be realized.

[0044] In summary, the utility model only needs to make a type of fan 1, it does not need to adopt additional carrier for loading fan unit 1, when needing to assemble at least two fan units 1 to form a combined fan (namely fan system), it only needs to butt joint two fan units 1 outer sides, at this time, the first connector 2 of last fan unit 1 is through first magnet 21 and the second magnet 31 of second connector 3 in next fan unit 1 magnetic attraction alignment to butt joint and lead through, and two adjacent fan units 1 are through first magnet 21 and second magnet 31 adsorption fixed to form quick dismounting structure, to form a combined fan (namely fan system), whole assembly process is extremely simple, and two adjacent fan units 1 can pass through magnetic attraction alignment and make first connector 2 and second connector 3 self lead through, it does not need manual plug-in, to simplify assembly difficulty, improve assembly efficiency, realize quick assembly, and because there is no additional carrier loading fan unit 1, its parts are less, cost is lower, and overall size also becomes smaller, can satisfy small space installation requirement, make the utility model have extremely strong market competitiveness.

[0045] Of course, the above only for the specific embodiments of the utility model has been described, and not to limit the utility model implementation range, all equivalent changes or modifications made according to the structure, features and principles of the utility model application patent range described, should be included in the utility model application patent range.

Claims

1. A quick detachable combination fan, which is composed of at least two electrically conductive fan units (1), characterized in that: the fan unit (1) is provided with a first connector (2) and a second connector (3) on both sides, respectively, and the first connector (2) is provided with a first magnet (21), the end face of which is exposed to one side of the fan unit (1), and the second connector (3) is provided with a second magnet (31), the end face of which is exposed to the other side of the fan unit (1); after the side surfaces of two adjacent fan units (1) are abutted, the first connector (2) of the upper fan unit (1) is magnetically attracted and positioned to the second magnet (31) of the second connector (3) of the lower fan unit (1) to realize abutment conduction, and the two adjacent fan units (1) are fixed by the first magnet (21) and the second magnet (31) to form a quick detachable structure; the inside of the bottom shell (11) of the fan unit (1) is further provided with a through first mounting groove (111), a first L-shaped limiting plate (112) and a second L-shaped limiting plate (113) located on both sides of the first mounting groove (111), and a stop block (114) located on the rear side of the first mounting groove (111), the first magnet (21) is integrally fixed in the stop block (114) by in-mold forming, the first PCB board (22) in the first connector (2) is installed in the first mounting groove (111), and the first PCB board (22) is inlaid on both sides of the first L-shaped limiting plate (112) and the second L-shaped limiting plate (113), and is limited by the first L-shaped limiting plate (112) and the second L-shaped limiting plate (113), and the first PCB board (22) is installed on the periphery of the stop block (114) through the first accommodating opening (221).

2. The quick detachable combination fan according to claim 1, wherein: the fan unit (1) is provided with a plurality of first positioning blocks (101) and first positioning grooves (102) on both sides for positioning, after the side surfaces of two adjacent fan units (1) are abutted, the first positioning block (101) of the upper fan unit (1) is inlaid and positioned with the first positioning groove (102) of the lower fan unit (1).

3. The quick detachable combination fan according to claim 1, wherein: the first connector (2) comprises a first PCB board (22) and a plurality of first copper foil terminals (23) and second copper foil terminals (24) which are fixed on the first PCB board (22) by printing and are distributed in two layers; the fan unit (1) is provided with a first window (103) and a second window (104) on one side; the first copper foil terminal (23) and the second copper foil terminal (24) are exposed in the first window (103) and the second window (104), respectively.

4. The quick detachable combination fan according to claim 3, wherein: the first PCB board (22) is provided with a first accommodating opening (221), and the first magnet (21) is located in the first accommodating opening (221) and between the first copper foil terminal (23) and the second copper foil terminal (24).

5. The quick detachable combination fan of claim 1, wherein: The stopper (114) is formed with a limiting flange (115) on both sides, which abuts against the periphery of the first accommodating opening (221) of the first PCB (22) to limit the first PCB (22); the first magnet (21) is in the shape of a Chinese character "K", and the front end face with a small size of the first magnet (21) is exposed to the outer side of the bottom shell (11).

6. The combination fan according to any one of claims 1-5, wherein: The second connector (3) comprises a plastic seat (32), a plurality of first spring pins (33) and second spring pins (34) integrally fixed in the plastic seat (32) by in-mold forming and protruding out of the plastic seat (32) and arranged in two layers, and a second PCB (35) arranged at the rear end of the plastic seat (32) and welded with the first spring pins (33) and the second spring pins (34); the second magnet (31) is integrally fixed in the plastic seat (32) by in-mold forming, and the front end face of the second magnet (31) is exposed to the end face of the plastic seat (32).

7. The quick detachable combination fan according to claim 6, wherein: The second magnet (31) is in the shape of a Chinese character "K", and the front end face with a small size of the second magnet (31) is exposed to the end face of the plastic seat (32); the second PCB (35) is also arranged on the rear end face of the second magnet (31).

8. The combination fan according to any one of claims 1-5, wherein: The fan unit (1) comprises a bottom shell (11), a circuit board and a motor assembly mounted on the bottom shell (11), a fan blade (12) mounted on the motor assembly, and an upper shell (13) sleeved on the bottom shell (11), and the first connector (2) and the second connector (3) are arranged on both sides of the bottom shell (11).

9. The combination fan according to any one of claims 1-5, wherein: At least one of the first connector (2) and the second connector (3) is magnetically connected with a plug (4), and the surface of the plug (4) in contact with the first connector (2) or the second connector (3) is provided with a third magnet (41), and the surface of the plug (4) in contact with the first connector (2) or the second connector (3) is also provided with a second positioning block (42) or a second positioning groove (43).

Images