CN208888752U - A kind of computer cooling device - Google Patents

Abstract

A kind of computer cooling device, including semiconductor refrigerating equipment, liquid crystal temperature meter, aerofoil fan, also there is cylinder, circular seal piece, annular permanent magnnet, Switching Power Supply, control circuit and shell, Switching Power Supply, control circuit be mounted in shell and and semiconductor refrigerating equipment, it is connected between aerofoil fan through conducting wire, semiconductor refrigerating equipment is mounted on cylinder upper center, there are two air intlets for the upper end of front and back two of cylinder, aerofoil fan is mounted on middle part in cylinder, the shell of liquid crystal temperature meter is caught in the front lower portion opening of cylinder, wherein the top of an annular permanent magnnet is mounted on the lower part of cylinder, the top of another annular permanent magnnet is mounted on the lower part of circular seal piece, cylinder, the annular permanent magnnet of circular seal piece lower part is pull-in on the upper end of central circular aperture on computer mainframe shell.Under the premise of the utility model effectively radiates inside for main case body, moreover it is possible to prevent temperature too low phenomena such as leading to dew condensation.

Description

A kind of computer cooling device

Technical field

The utility model relates to computer peripheral corollary equipment field, especially a kind of computer cooling device.

Background technique

With the development of society, the popularity rate of computer is higher and higher.In computer in use, especially computer is when summer is long Between work, the operation of main inboard installation can generate biggish heat, wherein again with CPU generate temperature highest, host temperature compared with Height not only will cause the slowing down of computer operation speed, the increase of energy consumption, and increases host and break down because temperature is excessively high Probability, thus radiate to the host in using, undoubtedly will increase the speed of service of computer, reduce energy consumption, and reduce The probability of computer glitch.

Although there is radiator fan to radiate in critical component inside existing host, but by radiator fan volume, The limitation such as power, the heat dissipation effect that can not have reached；Although can also be using external powerful fan (such as household desk fan Deng) heat dissipation equipment is used as to radiate host, but cooling system and host are in discrete state, not only occupy indoor sky Between, and also seem uncoordinated between host.

Semiconductor refrigeration sheet heat dissipation has the characteristics that small in size, high-efficient, in existing technology, also has semiconductor refrigerating Piece is host heat dissipation as refrigeration source, but the existing semiconductor chilling plate for host computer heat dissipation, cooling temperature are non-adjustable It saves, in actual use, when temperature is too low, is easy to cause in host shell and condenses dew, in this way, having because dew causes in host The hidden danger of electronic component service short-circuit causes the damage of host.And the existing semiconductor refrigerating applied to host heat dissipation is set It is standby, it is to be fixedly mounted in host shell by bolt and nut etc., not only occupies limited space in host in this way, and Either host breaks down or semiconductor refrigerating equipment itself breaks down, because operating space becomes smaller in host, can give The maintenance work of host or semiconductor chilling plate is made troubles.

With the development of industrial technology, the competitiveness of industrial products is increasing, therefore, people-oriented, can to people with Come convenient product be undoubtedly account for the first market opportunities prerequisite.

Based on above-mentioned, providing a kind of not only can be to cool down in host computer, and have and adjust by semiconductor chilling plate The ability of temperature, moreover it is possible to which facilitating realization and host computer to combine seems particularly necessary with isolated computer cooling device.

Utility model content

In order to overcome the matching used semiconductor refrigerating mechanism of existing computer, because structure limit existing for various drawbacks, The utility model, which provides the upper center in host computer, a circular opening, does not need to cool down for host or repairs, removes Whens moving equal, the aperture sealed the suction-combining force by magnet facilitates sealing, when needing to cool down in host, can conveniently pass through cylinder The annular permanent magnnet of lower end is realized and the connection of host, and it is whole remove it is more convenient, when work, the semiconductor on cylinder top The cold air that refrigeration equipment generates is empty after heat absorption through effectively being radiated in aerofoil fan sucking host shell for host inside Gas is blown out through the heat release hole at host rear portion, and semiconductor refrigerating equipment can also be by the effective temperature adjustment of control circuit, to prevent host The too low generation dew condensation phenomenon of internal cause temperature, and then there is a kind of computer for the mainboard electronic component damage risk for leading to host to drop Warm device.

The technical scheme adopted by the utility model to solve the technical problem is as follows:

A kind of computer cooling device including itself there is the semiconductor refrigerating of cooling piece, cooling fin and radiator fan to set Standby, liquid crystal temperature meter, aerofoil fan have a circular opening in the shell upper center of host computer, it is characterised in that Also there is cylinder, circular seal piece, annular permanent magnnet, Switching Power Supply, control circuit and shell, Switching Power Supply, control circuit On circuit boards, circuit board is mounted in shell, and shell is mounted on the outboard end upper right quarter of cylinder, the upper center of cylinder for installation There is a square aperture, semiconductor refrigerating equipment is mounted on cylinder upper center, the semiconductor chilling plate of semiconductor refrigerating equipment Positioned at cylinder internal upper part, the cooling fin and radiator fan of semiconductor refrigerating equipment are located on cylinder middle part outboard end, before cylinder Two upper ends are respectively machined with multiple apertures afterwards, multiple apertures of the upper end of front and back two of cylinder separately constitute two air into Mouthful, there are three tops to have internal thread fixing seat at middle part in cylinder, and aerofoil fan is mounted on middle part, the front end of cylinder in cylinder One opening is arranged at lower part, and the shell of liquid crystal temperature meter is caught in the front lower portion opening of cylinder, wherein an annular permanent magnetic The top of iron is mounted on the lower part of cylinder, and the top of another annular permanent magnnet is mounted on the lower part of circular seal piece, cylinder The annular permanent magnnet of lower part, the annular permanent magnnet of circular seal piece lower part are pull-in on central circular on computer mainframe shell and open The temp probe of the upper end in hole, liquid crystal temperature meter enters in host through computer mainframe shell upper center circular opening, opens The power input in powered-down source is connected through attaching plug with 220V AC power source, the power output end and control circuit of Switching Power Supply Power input both ends connected through conducting wire, the power output end anode and semiconductor refrigerating equipment of control circuit, aerofoil fan Cathode power supply input terminal is connected through conducting wire, the negative power supply output end and semiconductor refrigerating equipment of Switching Power Supply, aerofoil fan Negative power supply input terminal is connected through conducting wire.

Annular permanent magnnet, its outer diameter of the annular permanent magnnet of circular seal piece lower part of the cylinder lower end are greater than computer Host shell upper center circular opening outer diameter, internal diameter are consistent with computer mainframe shell upper center circular opening internal diameter.

The cylinder, the outer diameter of circular seal piece are consistent with annular permanent magnnet outer diameter.

The Switching Power Supply is that 220V exchange turns direct-current switch power supply module.

The control circuit includes adjustable resistance, NPN triode, electrolytic capacitor, resistance and relay, therebetween through circuit board Wiring connection, relay cathode power supply input terminal and control power input connection, adjustable resistance one end and the normally closed touching of relay The connection of point end, the adjustable resistance other end are connected with resistance one end, electrolytic capacitor anode, the resistance other end and first tri- pole NPN The connection of pipe base stage, first NPN triode emitter and second NPN transistor base connection, first NPN triode current collection Pole is connected with second NPN triode collector, relay negative power supply input terminal, electrolytic capacitor cathode and second NPN tri- The connection of pole pipe emitter.

The utility model beneficial effect is: the utility model does not need in use, if computer use time is short as host heat dissipation When, or maintenance, whens moving host etc., the annular permanent magnnet of circular seal piece lower part is pull-in on middle part on computer mainframe shell The upper end of circular opening, thus, circular seal piece seals aperture, prevents external foreign matter from entering in host shell, to host Interior equipment damages.When needing to use computer for a long time, the annular permanent magnnet of cylinder lower part is pull-in on electricity by user The upper end of central circular aperture on brain server shell can control semiconductor after 220V power input, control circuit work once electrified Refrigeration equipment work once electrified, the cold air that the semiconductor refrigerating equipment on cylinder top generates suck host shell through aerofoil fan Interior, effectively to be radiated inside host, air is blown out through the heat release hole at host rear portion after heat absorption, and user passes through small-sized liquid crystal The temperature digital of displays temperature meter real-time display, the adjustable resistance adjusting knob of adjusting control circuit as needed can change half The time of conductor refrigeration equipment work once electrified interval achievees the purpose that change main case body temperature, it is therefore prevented that main case in turn The drawbacks of body temperature is too low to be caused to condense dew in shell, and then dew causes electronic component service short-circuit in host.This is new Whens type does not need to cool down for host or repair, move host etc., it can facilitate and realize computer mainframe shell upper center circular opening Sealing, realization can be facilitated to connect when needing to radiate with the shell upper end of host computer, effectively radiated inside for main case body Under the premise of, moreover it is possible to temperature too low phenomena such as leading to dew condensation is prevented, host heat dissipation effect has been effectively ensured, and increases production The product market competitiveness.Based on above-mentioned, so the application prospect that the utility model has had.

Detailed description of the invention

The utility model is described further below in conjunction with drawings and examples.

Fig. 1 is the utility model structure diagram.

Fig. 2 is structural schematic diagram between the utility model and host computer.

Fig. 3 is the utility model circuit diagram.

Specific embodiment

Fig. 1, shown in 2, a kind of computer cooling device has cooling piece, cooling fin and radiator fan including itself Semiconductor refrigerating equipment 1, small-sized liquid crystal temperature meter 2 (there is a mating probe 2-1, it is internal that itself there is battery power supply, Service time of battery is generally 1 year), aerofoil fan 3, have a circular opening 4-1 in 4 upper center of shell of host computer, Also there is cylinder 5 (being hollow structure in cylinder 5), circular seal piece 6, annular permanent magnnet 7-1 and 7-2, Switching Power Supply 8, control Circuit 9 and shell 10 processed, on circuit boards, circuit board is mounted in shell 10, shell 10 for Switching Power Supply 8, the installation of control circuit 9 Left-external side glue sticking in the outboard end upper right quarter of cylinder 5, the upper center of cylinder 5 has a square aperture 5-1, semiconductor Refrigeration equipment 1 is mounted on 5 upper center of cylinder by screw rod, nut, and the semiconductor chilling plate 1-1 of semiconductor refrigerating equipment is located at 5 internal upper part of cylinder, the cooling fin and radiator fan 1-2 of semiconductor refrigerating equipment are located at middle part outboard end, semiconductor system on cylinder 5 The gap of 5-1 is sealed with sealant between 5 upper center square aperture of cool equipment 1 and cylinder, the upper end of the front and back two of cylinder 5 Multiple small apertures are respectively machined with, multiple small apertures of the upper end of front and back two of cylinder separately constitute two air intlet 5-2, cylinder There are three tops to have internal thread fixing seat 5-3 at interior middle part, by three screw rods respectively through three around 3 upper end of aerofoil fan Aperture screws in three internal screw threads of three fixing seat 5-3, and aerofoil fan 3 is mounted on middle part, the front end of cylinder 5 in cylinder 5 One opening 5-4 is arranged at lower part, and the shell of small-sized liquid crystal temperature meter 2 is caught in the front lower portion opening 5-4 of cylinder, barrel front end It is in close contact together between lower openings 5-4 and small-sized 2 hull outside of liquid crystal temperature meter, wherein an annular permanent magnetic The top glue sticking of iron 7-1 is in the lower part of cylinder 5, and the top glue sticking of another annular permanent magnnet 7-2 is round close The lower part of mounting 6, the annular permanent magnnet 7-1 of 5 lower part of cylinder, the annular permanent magnnet 7-2 of 6 lower part of circular seal piece are pull-in on The upper end of central circular aperture 4-1, small-sized liquid crystal display temperature on computer mainframe shell 4 (computer mainframe shell 4 is iron and steel material quality) The temp probe 2-1 of degree meter 2 enters in host through 4 upper center circular opening 4-1 of computer mainframe shell, 8 power supply of Switching Power Supply Input terminal is connected through attaching plug with 220V AC power source, the power output end of Switching Power Supply 8 and the power input of control circuit 9 Both ends are connected through conducting wire, the power output end anode of control circuit 9 and the cathode power supply of semiconductor refrigerating equipment 1, aerofoil fan 3 Input terminal is connected through conducting wire, the negative power supply output end of Switching Power Supply 8 and the negative electricity of semiconductor refrigerating equipment 1, aerofoil fan 3 Source input terminal is connected through conducting wire.

Fig. 1, shown in 2, the annular permanent magnnet 7-1 of 5 lower end of cylinder, 6 lower part of circular seal piece annular permanent magnnet Its outer diameter of 7-2 is greater than 4 upper center circular opening 4-1 outer diameter 1cm of computer mainframe shell, on internal diameter and computer mainframe shell 4-1 Hold central circular aperture internal diameter consistent.

Cylinder 5, the outer diameter of circular seal piece 6 are consistent with annular permanent magnnet 7-1 and 7-2 outer diameter.

Fig. 1, shown in 2, the utility model is in use, if computer use time is short, when not needing as host heat dissipation, or dimension Whens repairing, move host etc., the annular permanent magnnet 7-2 of 6 lower part of circular seal piece is pull-in on middle part circle on computer mainframe shell The upper end of shape aperture 4-1, thus, circular seal piece 4-1 seals aperture, prevents external foreign matter from entering in host shell 4, right Equipment, which damages, in host shell 4 (when usually without using circular seal piece 4-1, is pull-in on host for circular seal piece 4-1 Any one position of shell 4).

Fig. 1, shown in 2, the utility model is in use, when needing to use computer for a long time, ring of the user 5 lower part of cylinder Shape permanent magnet 7-1 is pull-in on the upper end of central circular aperture 4-1 on computer mainframe shell, annular permanent magnnet 7-1 and computer In effectively contact sealing state between the upper end central circular aperture 4-1 on host shell, when 220V AC power source input switch After power supply 8, Switching Power Supply 8 can export 12V DC power supply and enter control circuit 9, after 9 work once electrified of control circuit, can control half Conductor refrigeration equipment 1,3 work once electrified of aerofoil fan, after 1 work once electrified of semiconductor refrigerating equipment on 5 top of cylinder, semiconductor The cold air that cooling piece 1-1 is generated is drawn into 5 lower part of cylinder through aerofoil fan 3 and enters in host shell 4, is in host shell 4 Portion is effectively radiated, and air is blown out through the heat release hole at 4 rear portion of computer mainframe shell after heat absorption, the upper end of front and back two of cylinder 5 Two air intlet 5-2 main functions separately constituting of multiple small apertures be after being conducive to 3 work once electrified of aerofoil fan, in cylinder Ventilating air from top to bottom is generated in 5, the cold air that the semiconductor chilling plate 1-1 of semiconductor refrigerating equipment 1 is generated inputs Into host shell 4；What the cooling fin and radiator fan 1-2 of semiconductor refrigerating equipment 1 generated the hot end semiconductor chilling plate 1-1 Heat is dispersed into air, guarantees that the cold end of semiconductor chilling plate 1-1 is normally freezed.The utility model in use, user by small The temperature digital of 2 real-time display of type liquid crystal temperature meter, the adjustable resistance adjusting knob of adjusting control circuit 9 as needed, The 1 work once electrified intermittent time of semiconductor refrigerating equipment can be changed, and then achieve the purpose that change temperature in host shell 4, prevented Temperature is too low in host shell 4 leads to internal condensate dew, and then dew causes electronic component service short-circuit in host shell 4 The drawbacks of.Whens the utility model does not need to cool down for host or repair, move host etc., it can facilitate and realize in computer mainframe shell upper end The sealing of portion circular opening 4-1 can facilitate realization to connect with 4 upper end of shell of host computer when needing to radiate, for main case Under the premise of the effectively heat dissipation of 4 inside of body, moreover it is possible to prevent temperature is too low from leading to dew condensation phenomenon, host heat dissipation effect has been effectively ensured Fruit, and increase product competitiveness in the market.Based on above-mentioned, so the application prospect that the utility model has had.

Shown in Fig. 3, Switching Power Supply U1 is that the 220V exchange of bright latitude brand turns 12V DC switch power module finished product, function Rate is 100W, and there are two power input 1 and 2 feet, two power output ends 3 and 4 feet for tool.Control circuit includes adjustable resistance RP, NPN triode Q1 and Q2, electrolytic capacitor C1, resistance R1 and relay J, connect through circuit board wiring therebetween, and relay J is just Pole power input and control power input connection, the one end adjustable resistance RP are connected with relay J normally-closed contact end, adjustable electric The resistance RP other end is connected with the one end resistance R1, electrolytic capacitor C1 anode, the resistance R1 other end and first NPN triode Q1 base stage Connection, first NPN triode Q1 emitter and second NPN triode Q2 base stage connection, first NPN triode Q1 current collection Pole is connected with second NPN triode Q2 collector, relay J negative power supply input terminal, electrolytic capacitor C1 cathode and second The connection of NPN triode Q2 emitter, the regulation handle of adjustable resistance RP are located at outboard end middle part before shell.

Shown in Fig. 3, Switching Power Supply U1 power input 1 and 2 feet are connected through attaching plug with 220V AC power source, switch The power output end 3 and 4 feet of power supply U1 and the power input both ends relay J cathode power supply input terminal and NPN tri- of control circuit Pole pipe Q2 emitter is separately connected through conducting wire, the power output end anode relay J normally opened contact end of control circuit and semiconductor Refrigeration equipment ZL, aerofoil fan M cathode power supply input terminal connected through conducting wire, 4 foot of negative power supply output end of Switching Power Supply U1 It is connected with the negative power supply input terminal of semiconductor refrigerating equipment ZL, aerofoil fan M through conducting wire.

Shown in Fig. 3, attaching plug is inserted into 220V power outlet, after 1 and 2 feet of 220V power input Switching Power Supply U1, 3 and 4 feet of Switching Power Supply U1 can export stable 12V DC power supply and enter control circuit, and control circuit obtains electric in work shape State.In control circuit and semiconductor refrigerating equipment, aerofoil fan M: after control circuit work once electrified, the anode electricity of Switching Power Supply U1 The power supply of 3 foot of source output terminal output can control power input, normally-closed contact end through relay J, through adjustable resistance RP to electrolysis Capacitor C1 charging, after charging 2.5 seconds or so, two terminal potentials of electrolytic capacitor C1 reach the 3 and 4 foot voltages of Switching Power Supply U1 When, this moment, Darlington transistor base stage (NPN triode Q1 base stage) voltage being made of NPN triode Q1, Q2 can be higher than 0.7V to Conducting (when two terminal potentials of electrolytic capacitor C1 do not reach the 3 and 4 foot voltage of Switching Power Supply U1, NPN triode Q1, Q2 composition Darlington transistor base voltage lower than 0.7V in by state), resistance R1 is the voltage into NPN triode Q1 base stage Decompression, its collector output low level enters relay J negative power supply input terminal after NPN triode Q1, Q2 conducting, then, after Electric appliance J obtains electric actuation, and it controls power input and the disconnection of normally-closed contact end, relay J control power input and normally opened contact End closure, due to, relay J normally opened contact end and semiconductor refrigerating equipment ZL, aerofoil fan M cathode power supply input terminal through leading Line connection, so, relay J obtain it is electric be attracted its control power input and normally-closed contact end disconnect, control power input and After the closure of normally opened contact end, semiconductor refrigerating equipment ZL, aerofoil fan M can work once electrified, due to, one end adjustable resistance RP and after The connection of electric appliance J normally-closed contact end, so, after relay J obtains its control power input of electric actuation and normally-closed contact end closure, 12V power supply will not be again electrolytic capacitor C1 charging through adjustable resistance RP, and this moment, since the voltage filled on electrolytic capacitor C1 can be protected The base stage for holding NPN triode Q1 continues to obtain a period of time power supply, and NPN triode Q1, Q2 continue to be connected, and relay J continues Electricity is attracted, after crossing 5 seconds or so, when the undertension filled on electrolytic capacitor C1 is to maintain NPN triode Q1, Q2 to continue to be connected When, NPN triode Q1, Q2, which can end its collector and no longer export low level, enters relay J negative power supply input terminal, then, Relay J1 power loss, which is no longer attracted it and controls power input and normally-closed contact end, to be closed again, controls power input and normally opened Tip side is again off, since the cathode power supply of relay J normally opened contact end and semiconductor refrigerating equipment ZL, aerofoil fan M are defeated Enter end to connect through conducting wire, so, after relay J obtains its control power input of electric actuation and the disconnection of normally opened contact end, semiconductor Refrigeration equipment ZL, aerofoil fan M meeting power loss stop working, since the one end adjustable resistance RP and relay J normally-closed contact end connect Connect, this moment, the power supply of 3 foot of cathode power supply output end of Switching Power Supply U1 output can again through relay J control power input, Normally-closed contact end is charged through adjustable resistance RP to electrolytic capacitor C1, and after charging 2.5 seconds, two terminal potentials of electrolytic capacitor C1 reach To Switching Power Supply U1 3 and 4 foot voltage when, the Darlington transistor conducting collector output low level that is made of NPN triode Q1, Q2 Into relay J negative power supply input terminal, then, relay J again electric be attracted it and control power input and normally-closed contact End disconnects, relay J control power input and normally opened contact end are closed, and semiconductor refrigerating equipment ZL, aerofoil fan M can be again Work once electrified ..., the above process constantly recycle, as long as continuous switch power supply, semiconductor refrigerating equipment ZL will according to often electrician Make 5 seconds, work once electrified 5 seconds mode cycle operations are gone down again for interval 2.5 seconds；Guarantee semiconductor refrigerating equipment ZL work Make under discontinuous operation state, prevents main case body temperature too low and cause to condense dew.In actual use, pass through adjusting The adjusting knob of adjustable resistance RP, thus it is possible to vary the resistance value of adjustable resistance RP, and then change the charging time of electrolytic capacitor C1, When the adjusting knob of adjustable resistance RP, which rotates to the left resistance value, becomes minimum, then the charging time of electrolytic capacitor C1 can become faster, Under actual conditions, it can achieve and NPN triode Q1, Q2 is allowed within 1 second or so to be connected, after 5 seconds, NPN triode Q1, Q2 are cut at interval Only relay J power loss, in this way, semiconductor refrigerating equipment ZL will according to every work once electrified 5 seconds, interval 1 second again it is electric The mode cycle operation of work 5 seconds is gone down, due to, semiconductor refrigerating equipment ZL operation range time is short, then, semiconductor system Cool equipment ZL can make warm in host shell accordingly since the working time is elongated to provide more cold airs in main case body Spending in the very fast time reduces, and under actual conditions, main built-in temperature can be made to be reduced to 12 DEG C or so；When the adjusting of adjustable resistance RP is revolved When button rotates to the right the maximum of resistance value change, then the charging time of electrolytic capacitor C1 can be slack-off, under actual conditions, it can achieve 10 Second or so allow NPN triode Q1, Q2 conducting, interval 5 seconds after, NPN triode Q1, Q2 cutoff relay J power loss, in this way, Semiconductor refrigerating equipment ZL will work once electrified recycles in the way of in the of 5 seconds again by every work once electrified 5 seconds, interval 10 seconds Work is gone down, due to, semiconductor refrigerating equipment ZL operation range time is long, then, when semiconductor refrigerating equipment ZL is due to work Between shorter, the cold air to provide in main case body tails off, less, the actual conditions for reducing main case body temperature Under, main built-in temperature is maintained at 30 DEG C or so (summers).Adjusting to main case body temperature, user pass through small-sized liquid crystal (temp probe of small-sized liquid crystal temperature meter is through computer mainframe shell upper center for the temperature digital of temperature displaying function meter real-time display Circular opening enters in host, so energy real-time detection host internal temperature), the adjustable resistance of adjusting control circuit as needed The adjusting knob of RP when temperature is high, rotates to the left the regulation handle of adjustable resistance RP, when temperature is low, rotates to the right adjustable The regulation handle of resistance RP, works as certain interval of time, and the temperature digital of small-sized liquid crystal temperature meter real-time display reaches needs , under normal circumstances, as long as big variation does not occur for external temperature, adjusting can be once used for a long time.

Shown in Fig. 3, resistance R1 resistance value is 470K；NPN triode Q1, Q2 model are 9013；Relay J is that brand pine is happy DC12V4123 type miniature relay；Adjustable resistance RP specification is 4.7K；Electrolytic capacitor C1 specification is 470 μ F/25V.Axis stream wind Fanning MG operating voltage is direct current 12V, power 10W.Semiconductor refrigerating equipment ZL operating voltage direct current 12V, power 36W.

The advantages of basic principles and main features and the utility model of the utility model have been shown and described above, for For those skilled in the art, it is clear that the utility model is limited to the details of above-mentioned exemplary embodiment, and without departing substantially from this reality In the case where with novel spirit or essential attributes, the utility model can be realized in other specific forms.Therefore, no matter from From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by appended Claim rather than above description limit, it is intended that the institute that will be fallen within the meaning and scope of the equivalent elements of the claims It changes and is embraced therein.Right involved in should not treating any reference in the claims as limiting is wanted It asks.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (5)

1. a kind of computer cooling device, including itself have the semiconductor refrigerating equipment of cooling piece, cooling fin and radiator fan, Liquid crystal temperature meter, aerofoil fan have a circular opening in the shell upper center of host computer, it is characterised in that also have There are cylinder, circular seal piece, annular permanent magnnet, Switching Power Supply, control circuit and shell, Switching Power Supply, control circuit installation On circuit boards, circuit board is mounted in shell, and shell is mounted on the outboard end upper right quarter of cylinder, and the upper center of cylinder has one A square aperture, semiconductor refrigerating equipment are mounted on cylinder upper center, and the semiconductor chilling plate of semiconductor refrigerating equipment is located at Cylinder internal upper part, the cooling fin and radiator fan of semiconductor refrigerating equipment are located at middle part outboard end, the front and back two of cylinder on cylinder The upper end in portion is respectively machined with multiple apertures, and multiple apertures of the upper end of front and back two of cylinder separately constitute two air intlets, cylinder There are three tops to have internal thread fixing seat at middle part in vivo, and aerofoil fan is mounted on middle part, the front lower portion of cylinder in cylinder There is an opening, the shell of liquid crystal temperature meter is caught in the front lower portion opening of cylinder, wherein annular permanent magnnet Top is mounted on the lower part of cylinder, and the top of another annular permanent magnnet is mounted on the lower part of circular seal piece, cylinder lower part Annular permanent magnnet, circular seal piece lower part annular permanent magnnet be pull-in on central circular aperture on computer mainframe shell The temp probe of upper end, liquid crystal temperature meter enters in host through computer mainframe shell upper center circular opening, switch electricity The power input in source is connected through attaching plug with 220V AC power source, the power output end of Switching Power Supply and the electricity of control circuit Source input both ends are connected through conducting wire, the anode of the power output end anode and semiconductor refrigerating equipment of control circuit, aerofoil fan Power input is connected through conducting wire, the cathode of the negative power supply output end and semiconductor refrigerating equipment of Switching Power Supply, aerofoil fan Power input is connected through conducting wire.

2. a kind of computer cooling device according to claim 1, it is characterised in that the annular permanent magnnet of cylinder lower end, Its outer diameter of the annular permanent magnnet of circular seal piece lower part be greater than computer mainframe shell upper center circular opening outer diameter, internal diameter and Computer mainframe shell upper center circular opening internal diameter is consistent.

3. a kind of computer cooling device according to claim 2, it is characterised in that cylinder, circular seal piece outer diameter and Annular permanent magnnet outer diameter is consistent.

4. a kind of computer cooling device according to claim 1, it is characterised in that Switching Power Supply is that 220V exchange turns straight Current switching power supply module.

5. a kind of computer cooling device according to claim 1, it is characterised in that control circuit include adjustable resistance, NPN triode, electrolytic capacitor, resistance and relay, connect through circuit board wiring therebetween, relay cathode power supply input terminal and control Power input processed connection, adjustable resistance one end are connected with relay normally closed contact end, the adjustable resistance other end and resistance one end, The connection of electrolytic capacitor anode, the resistance other end and the connection of first NPN transistor base, first NPN triode emitter and Second NPN transistor base connection, first NPN triode collector and second NPN triode collector, relay are negative The connection of pole power input, electrolytic capacitor cathode and second NPN triode emitter connection.