CN103291587A

CN103291587A - Compressor and vacuum machine

Info

Publication number: CN103291587A
Application number: CN2013100594310A
Authority: CN
Inventors: 冈田英士; 上田一宏
Original assignee: Shinano Kenshi Co Ltd
Current assignee: Shinano Kenshi Co Ltd
Priority date: 2012-02-27
Filing date: 2013-02-26
Publication date: 2013-09-11
Anticipated expiration: 2033-02-26
Also published as: JP2013209980A; CN103291587B; JP5547304B2; US20130224051A1

Abstract

The invention provides a compressor and a vacuum machine. Either of the compressor and the vacuum machine comprises a cylinder, wherein a piston is arranged within the cylinder; an outer rotor type motor causing the piston to reciprocate within the cylinder; an air pipe communicated with the cylinder such that air flows into the air pipe in response to reciprocation of the piston; and a fan secured to a rotor of the outer rotor type motor and facing at least a part of the air pipe.

Description

Compressor and vacuum machine

Technical field

The present invention relates to a kind of compressor and vacuum machine.

Background technique

Known have a kind of compressor and a vacuum machine, and this compressor and vacuum machine are by the piston compression and discharge inhaled air, and this piston is by motor to-and-fro motion in cylinder.Patent documentation 1 discloses such compressor.

[prior art document]

[patent documentation]

[patent documentation 1] Japanese patent application 2004-183498 communique

Summary of the invention

[the problem to be solved in the present invention]

Air by adiabatic compression, makes to be uprised by the temperature of the air of adiabatic compression in cylinder.Therefore, compressor or vacuum machine can be continued to use under the situation of heating.In this case, for example, piston wear and influence part and the life-span of compressor itself or vacuum machine itself unfriendly.And, there is such situation, wherein, pressurized air blows catalyzer reacting, and this depends on and has been supplied compressed-air actuated device.In this case, when compressed-air actuated temperature was high, the reaction of catalyzer can not be carried out.

In patent documentation 1, the fan that is used for cooling compressor is arranged along the axial direction of motor.Yet, exist in axial direction to have the problem of high height.In addition, in patent documentation 1, use inner rotor type motor.Therefore, have another problem, that is, the torque of inner rotor type motor is less than having the torque of the outer rotor-type motor of same size with this inner rotor type motor.

Therefore, the purpose of this invention is to provide a kind of compressor and vacuum machine, thereby compare by utilizing outer rotor-type motor can suppress described compressor and the heating of described vacuum machine and the heating of inhibition pressurized air with the inner rotor type motor with same size, reduce thickness, produce big torque, and make compressive state or vacuum state more effective.

[for the scheme of dealing with problems]

According to an aspect of the present invention, provide a kind of compressor, this compressor comprises: cylinder; Be arranged in the piston in the described cylinder; Outer rotor-type motor, this outer rotor-type motor make the to-and-fro motion in described cylinder of described piston; Tracheae, this tracheae is communicated with described cylinder, makes air flow in response to the to-and-fro motion of described piston in the described tracheae; And fan, this fan is fixed to the rotor of described outer rotor-type motor and towards at least a portion of described tracheae.

According to a further aspect in the invention, provide a kind of vacuum machine, this vacuum machine comprises: cylinder; Be arranged in the piston in the described cylinder; Outer rotor-type motor, this outer rotor-type motor make the to-and-fro motion in described cylinder of described piston; Tracheae, this tracheae is communicated with described cylinder, makes air flow in response to the to-and-fro motion of described piston in the described tracheae; And fan, this fan is fixed to the rotor of described outer rotor-type motor and towards at least a portion of described tracheae.

[invention effect]

According to the present invention, a kind of compressor and vacuum machine can be provided, thereby compare by utilizing outer rotor-type motor can resist described compressor and the heating of described vacuum machine and the heating of resistance pressurized air with the inner rotor type motor with same size, reduce thickness, produce big torque, and make compressive state or vacuum state more effective.

Description of drawings

Fig. 1 is the External view according to the compressor of first mode of execution;

Fig. 2 is the External view according to the described compressor of first mode of execution;

Fig. 3 is the External view according to the described compressor of first mode of execution;

Fig. 4 is that the A-A line along Fig. 1 cuts open the sectional view of getting;

Fig. 5 is the External view according to the compressor of second mode of execution;

Fig. 6 is the External view according to the described compressor of second mode of execution;

Fig. 7 is that the B-B line along Fig. 5 cuts open the sectional view of getting;

Fig. 8 is the External view according to the compressor of the 3rd mode of execution;

Fig. 9 is the External view according to the described compressor of the 3rd mode of execution;

Figure 10 is the External view according to the compressor of the 4th mode of execution; And

Figure 11 is the External view according to the described compressor of the 4th mode of execution.

Embodiment

A plurality of mode of executions will be described.

[first mode of execution]

Fig. 1 to Fig. 3 is the External view according to the compressor A of first mode of execution.Additionally, be connected with destination apparatus at the exhaust side of compressor A, as describing in detail.When destination apparatus being connected the air inlet side of compressor A or when arranging safety check in the mode opposite with the mode of compressor A, compressor A serves as the vacuum machine.Compressor A comprises: four cylinder 10a to 10d; With four crankcases 20 that cylinder 10a to 10d is attached; Be arranged in the motor M of the upside of crankcase 20; With the attached fan F of motor M; And the tracheae 80 that is connected with cylinder 10a to 10d.Fan F rotates in response to the rotation of motor.Cylinder 10a to 10d is attached around crankcase 20.As shown in Figure 1, cylinder 10a to 10d with uniform interval around running shaft 42 radial arrangement.Running shaft 42 is running shafts of motor.Cylinder 10a comprises: with the attached cylinder body 12a of crankcase 20; And with the attached cylinder cap 15a of cylinder body 12a.Other cylinder 10b to 10d has identical structure.Tracheae 80 is connected with cylinder cap 15a.This will describe in detail after a while.

Tracheae 80 is arranged on the outside of cylinder 10a to 10d and crankcase 20, and arranges around cylinder 10a to 10d.Tracheae 80 comprises the branched pipe 81a to 81d that is connected with cylinder 10a to 10d respectively.Particularly, branched pipe 81a to 81d is connected with cylinder cap 15a to 15d respectively.Branched

pipe

81a and 81b are connected to each other by connecting tube G.Similarly,

branched pipe

81b and 81c,

branched pipe

81c and 81d and

branched pipe

81d and 81a are connected to each other by connecting tube G respectively.In aforesaid way, branched pipe 81a to 81d is connected to each other.Additionally, connecting tube G is made by rubber, but is not limited thereto.Branched pipe 81a to 81d has substantially the same size and dimension.

To describe tracheae 80 in detail.As shown in Figure 3, arm 81a comprises: joining portion 85a, and this joining portion is connected with the bottom surface of cylinder cap 15a; Branching portion 84a, this branching portion branches out from joining portion 85a, extends along the direction perpendicular to running shaft 42, and is arranged in the place, bottom side of cylinder cap 15a.Centre in the path portion of extending towards branching portion 84d is provided with nozzle 89.As shown in Figure 2, branched pipe 81b comprises: joining portion 85b, and this joining portion is connected with the upper surface of cylinder cap 15b; Branching portion 84b, this branching portion branches out from joining portion 85b, extends along the direction perpendicular to running shaft 42, and is arranged in the upside place of cylinder cap 15b.As shown in Figure 1, branching

portion

84a and 84b vertically extend.Additionally, the upper surface of

cylinder cap

15a and 15b refers to towards the surface of fan F.

As shown in Figure 3, one of the branching portion 84a distolateral part of extending towards cylinder 10b that is formed with; And with this partial continuous and along the axial direction of running shaft 42 towards end that fan F extends.The distolateral part of extending towards cylinder 10d that is formed with of another of branching portion 84a; And with this partial continuous and along the axial direction of running shaft 42 towards end that fan F extends.

As shown in Figure 2, one of the branching portion 84b distolateral part of extending towards cylinder 10c that is formed with; And with this partial continuous and the end of extending on the contrary along axial direction and the fan F of running shaft 42.The distolateral part of extending towards cylinder 10a that is formed with of another of branching portion 84b; And with this partial continuous and the end of extending on the contrary along axial direction and the fan F of running shaft 42.

As shown in Figure 1, the end of branching portion 84b is connected with the other end of branching portion 84a by connecting tube G.Connecting tube G extends along the axial direction of running shaft 42.This connecting tube G is between cylinder 10a and 10b.By this way,

branched pipe

81a and 81b are connected to each other.

Similarly, other branched pipe 81c has identical structure with 81d.The branching portion 84c of branched pipe 81c is positioned at the below of the bottom surface of cylinder cap 15c, and joining portion 85c is connected with the bottom surface of cylinder cap 15c.One of branching portion 84c distolaterally is connected with branching portion 84d by connecting tube G.Another of branching portion 84c is distolateral to be connected with branching portion 84b by connecting tube G.Branched pipe 81d is positioned at the top of the upper surface of cylinder cap 15d, and joining portion 85d is connected with the upper surface of cylinder cap 15d.One of branching portion 84d distolaterally is connected with branching portion 84a by connecting tube G.Another of branching portion 84d is distolateral to be connected with branching portion 84c by connecting tube G.These connecting tubes G is arranged between the adjacent cylinder, and extends along the direction of running shaft 42.As mentioned above, a plurality of branched pipe 81a to 81d are connected to each other.

As shown in Figure 1 to Figure 3, fan F is towards at least a portion of tracheae 80.Particularly, branching

portion

84b and 84d are towards fan F, and branching

portion

84a and 84c be not directly towards fan F.In other words, cylinder 10a is folded between branching portion 84a and the fan F, and cylinder 10c is folded between branching portion 84c and the fan F.And branching portion 84b is folded between fan F and the cylinder 10b, and branching portion 84d is folded between fan F and the cylinder

10d.Branching portion

84a and 84c are the examples of first air

portion.Branching portion

84b and 84d are the examples of second air portion.Connecting tube G makes the be connected with each other example of logical interconnecting part of first air portion and second air portion.

In addition, fan F at least a portion in the cylinder body 12a to 12d.The rotation of fan F can be cooled off tracheae 80, four cylinder body 12a to 12d and crankcase 20.Piston 25a to-and-fro motion in cylinder 10a etc. as will be described later.Cylinder 10a, crankcase 20, branching portion 84a to 84d etc. are made by the metal such as aluminium with good thermal radiation property.

Fig. 4 is that the line A-A along Fig. 1 cuts open the sectional view of getting.At first, motor M will be described.This motor M comprises: coil 30, rotor 40, stator 50 and printed circuit board (PCB) PB.Stator 50 is made of metal.Stator 50 is fixed to crankcase 20.A plurality of coils 30 are reeled around stator 50.Coil 30 is electrically connected with printed circuit board (PCB) PB.About printed circuit board (PCB) PB, form conductive pattern at the insulation board with rigidity.Be used for being installed in printed circuit board (PCB) PB to the unshowned power connector of coil 30, signal connector and other electronic components supply electric power.For example, electronic component is to carry transistor (switching element) or capacitor, and described conveying transistor is the FET such as the "on" position that is used for control coil 30.Coil 30 is energized, and makes stator 50 be energized.

Rotor 40 comprises: running shaft 42; Yoke 44; And one or more permanent magnets 46.Running shaft 42 is supported rotatably by a plurality of bearings that are arranged in the crankcase 20.Yoke 44 is fixed to running shaft 42 by hub 43, makes yoke 44 with running shaft 42 rotations.Yoke 44 has roughly cylindrical shape and is made of metal.One or more permanent magnets 46 are fixed to interior all sides of yoke 44.Permanent magnet 46 is towards the outer circumferential face of stator 50.Coil 30 is energized, so stator 50 is energized.Therefore, between permanent magnet 46 and stator 50, produce magnetic pull and magnetic repulsion.This magnetic force allows rotor 40 with respect to stator 50 rotations.As mentioned above, motor M is the outer rotor-type motor that rotates therein for rotor 40.

The fan F that is fixed to motor M comprises: have the roughly main part FM of cylindrical shape; The ring portion FR that forms in the outside of main part FM; And a plurality of blade part FB that between main part FM and ring portion FR, form.The main part FM of fan F is screwed to the yoke 44 that hub 43 is fixed to rotor 40 by for example press fit, adhesive bond or with rotor 40.Particularly, the internal diameter of main component FM is fit to the external diameter of yoke 44.Fan F is formed from a resin.

As shown in Figure 4, when from the cross-section of the axis that comprises motor M, fan F and motor M arrange along the radial direction of fan F.Particularly, fan F, coil 30, rotor 40 and stator 50 are arranged along the radial direction of fan F.Therefore, for example, as comparing with the situation that the front end of running shaft was located and be fixed in the end (left side among Fig. 4) that fan F in axial direction is arranged in motor M, have along the thickness that in axial direction reduces according to the compressor A of present embodiment.In addition, the close tracheae 80 of fan F and cylinder 10a to 10d, thus improve cooling effect.

And, in axial direction being arranged in the end of motor M and being fixed under the situation of front end of running shaft at fan F, running shaft must be long.If running shaft is long, then must provide big bearing or a plurality of bearing so that the rotation of supporting rotating shaft.In the compressor A according to present embodiment, adopt short running shaft 42, come supporting rotating shaft 42 by little bearing or several bearing thus.Therefore, the whole weight of compressor A reduces.

Then, will the internal structure of cylinder 10a be described.In cylinder body 12a, form the 13a that has family.This chamber 13a by be formed in the cylinder body 12a the space and in this space the far-end of pistons reciprocating 25a limit.Piston 25a to-and-fro motion in response to the rotation of motor M, thereby the capacity of chamber 13a increases or reduces.The proximally-located of piston 25a is in crankcase 20 and be connected to the running shaft 42 of motor M by bearing.Particularly, the near-end of piston 25a is with respect to the center off-centre of running shaft 42, and piston 25a in response to the rotation of running shaft 42 along single direction to-and-fro motion.Similarly, other cylinder 10b to 10d and other piston 25b to 25d of moving in their inside respectively have identical structure.Position phase difference between four piston 25a to 25d is 90 degree.

In the bottom of crankcase 20, near formation pore 22a cylinder 10a.Similarly, near formation pore 22c cylinder 10c.The to-and-fro motion of piston 25a allows air to be introduced in the crankcase 20 by pore 22a.The far-end of piston 25a is provided with intercommunicating pore 26a.The end face of the far-end of piston 25a is provided with unshowned valve member to close intercommunicating pore 26a.This valve member is formed by elastic material.This valve member opens or closes intercommunicating pore 26a based on the difference between the internal pressure of chamber 13a and crankcase 20.Valve member allow air from crankcase 20 effluents to chamber 13a, but limit air from chamber 13a effluent to crankcase 20 sides.In cylinder cap 15a, in the wall portion of the 13a of separation chamber and exhaust chamber 18a, intercommunicating pore 16a is set.The place arranges unshowned valve member in the exhaust chamber 18a of this wall portion side.This valve member is formed by elastic material.This valve member opens or closes intercommunicating pore 16a based on the difference between the internal pressure of chamber 13a and exhaust chamber 18a.Valve member allow air from chamber 13a effluent to exhaust chamber 18a side, but limit air from exhaust chamber 18a effluent to chamber 13a side.Branching portion 84 is communicated with exhaust chamber 18a.

The to-and-fro motion of piston 25a changes the capacity of chamber 13a.In response to this, air is introduced to chamber 13a and compressed in the 13a of this chamber by suction port 22a and intercommunicating pore 26a.Pressurized air is introduced in the exhaust chamber 18 by intercommunicating pore 16a and is drained into branching portion 84a.Particularly, when the capacity of chamber 13a was increased by piston 25a, the valve member that is arranged among the piston 25a was opened intercommunicating pore 26a, and air is directed to chamber 13a.When the capacity of chamber 13a was reduced by piston 25a, this valve member was closed intercommunicating pore 26a.And when the capacity of chamber 13a was increased by piston 25a, the valve member that is arranged on cylinder cap 15a side place was closed intercommunicating pore 16a, and when the capacity of chamber 13a was reduced by piston 25a, this valve member was opened intercommunicating pore 16a.

Similarly, other cylinder has identical structure.Therefore, compressed by the to-and-fro motion of piston 25a to 25d by being formed on the air that pore 22a in the

crankcase

20 and 22c be introduced in this crankcase 20, and be discharged to the outside by tracheae 80.

Additionally, when compressor A was used as the vacuum machine, tracheae 80 was as suction tude, this suction tude with air from exterior guiding to cylinder 10a to 10d.In this case, the valve member that is arranged in the cylinder 10a must be according to arranging in the mode opposite with the mode of compressor A such as the direction of introducing air.Additionally, be used as another situation of vacuum machine for compressor A, destination apparatus is connected with suction port 22a, thus the relief opening of the air introduced by suction port 22a as discharging of tracheae 80.In this case, the valve member that is arranged among the cylinder 10a can be arranged in the mode identical with compressor A.

Therefore, air by adiabatic compression, makes the temperature of the air that chamber 13a is interior uprise in the 13a of chamber.Therefore, in cylinder body 12a to 12d, flowed in the tracheae 80 by the air of adiabatic compression.For this reason, supply the temperature of the tracheae 80 of high temperature air inflow also to uprise.The rotation of fan F can be cooled off tracheae 80, and cooling flows into air wherein.For example, when pressurized air has high temperature, may go wrong, this depends on the purpose of using compressor A.According to the compressor A of present embodiment cooled compressed air as mentioned above, thereby use the purpose of compressor A unrestricted.Additionally, be used as at compressor A under the situation of vacuum machine, air is introduced among the cylinder 10a etc. by tracheae 80, or flows into the tracheae 80 from the air that cylinder 10a etc. discharges.The air of waiting to be introduced among the cylinder 10a is cooled by rotary fan F.

As shown in Figure 4, the lip packing 27 that has annular shape in the far-end setting of piston 25a.Inwall at cylinder body 12a slides this lip packing 27 in response to the to-and-fro motion of piston 25a.Lip packing 27 prevents that air from passing through the clearance leakage between the inwall of the far-end of piston 25a and cylinder body 12a.Lip packing 27 is formed from a resin.The lip packing 27 of piston 25a slides at the inwall of cylinder body 12a, makes cylinder body 12a and piston 25a heating.When keeping such condition of high temperature, the life-span of lip packing 27 or another parts may be impaired.

Cylinder 10a to 10d can be cooled off by fan F, thereby suppresses above-mentioned such problem.Additionally, although branching portion 84b is arranged between fan F and the cylinder 10b, air flow to cylinder 10b and cylinder cap 15b directly or indirectly from fan F, cools off cylinder 10b thus.

And tracheae 80 is connected with cylinder 10a to 10d.Therefore, fan F cools off tracheae 80, and cylinder 10a to 10d can be cooled thus.

Fan F is partly towards cylinder cap 15a and 15c.Therefore, the rotation of motor M allows fan F also to cool off cylinder cap 15a and 15c.This promotes the cooling of

cylinder

10a and 10c.

And fan F and rotor 40 are attached, thereby fan F is near cylinder 10a to 10d.Therefore, fan F cools off cylinder 10a to 10d effectively.

Air flows to crankcase 20 and motor M from fan F directly or indirectly.This can also cool off crankcase 20 and motor M.The cooling of crankcase 20 can be suppressed at the wearing and tearing between the parts of the parts of the running shaft 43 that is connected to each other in this crankcase 20 and piston 25, and can suppress the wearing and tearing that are arranged in the bearing in the crankcase 20 of running shaft 42.And motor M itself is cooled to suppress heat and is delivered to cylinder 10 and crankcase 20.Therefore, can cool off whole compressor A.

Therefore, fan F can cool off cylinder 10a to 10d, crankcase 20 and motor M.Therefore, needn't provide the fan that cools off these parts respectively, this is different from the device that uses conventional compressor or conventional vacuum machine.Therefore, about compressor A or the vacuum machine according to present embodiment, the quantity of parts reduces and manufacture cost reduces.

As shown in Figures 2 and 3,

cylinder

10b and 10c are arranged so that distance between fan F and the cylinder 10b is different from the distance between fan F and the cylinder C.Particularly, the distance between cylinder 10c and the fan F is shorter than the distance between cylinder 10d and the fan F.Distance between cylinder 10a and the fan F is shorter than the distance between cylinder 10b and the fan F.Distance between cylinder 10a and the fan F equals the distance between cylinder 10c and the fan F.Distance between cylinder 10b and the fan F equals the distance between cylinder 10d and the fan F.Reason will be described below.

Piston 25a and 25c are of similar shape and arrange opposed to each other that as shown in Figure 4 the cylinder 10a that takes in

piston

25a and 25c respectively can be arranged in identical height and position place with 10c.Similarly,

piston

25b and 25d are of similar shape and arrange that opposed to each other cylinder 10b can be arranged in identical height and position place with 10d.Here, piston 25a to 25d is of similar shape and identical size.And as shown in Figure 4, running shaft 42 is connected with these pistons with the such order of

piston

25a, 25c, 25b and 25d from the end to end that is connected with fan F of this running shaft 42.Therefore, the position of

cylinder

10b and 10d is lower than the position of

cylinder

10a and 10c, wherein

cylinder

10b and 10d take in respectively

piston

25b and 25d and with another distolateral being connected of running shaft 42,

cylinder

10a and 10c take in

piston

25a and 25c respectively.Therefore, compare with 10c with cylinder 10a,

cylinder

10b and 10d are away from fan F.In the present embodiment, branching portion 84b is arranged in fan F and distant between the cylinder 10b of this fan, and branching portion 84d is arranged in fan F and distant between the cylinder 10d of this fan.Therefore, effectively utilized dead space (dead space).

And the connecting tube G that extends along the direction of running shaft 42 is arranged between adjacent the

cylinder

10a and 10b, therefore effectively utilizes dead space.As mentioned above, tracheae 80 partly is arranged in the dead space, and this dead space is arranged between fan F and the cylinder 10b and is arranged between adjacent the

cylinder

10a and 10b, thus, guarantees that the total length of tracheae 80 suppresses the whole dimension increase of compressor A simultaneously.Therefore, the high temperature air that flows in the tracheae 80 can be cooled off as far as possible longways.

And motor M is outer rotor-type motor.

If outer rotor-type motor has identical size with inner rotor motor, then the torque of outer rotor-type motor is higher than the torque of inner rotor type motor.This is mobile piston 25a to 25d suitably.

For example, in the above-described embodiment, the shape of tracheae 80 is not limited to linearity configuration.For example, can adopt meander-shaped or spiral-shaped.Such shape is guaranteed the total length of tracheae 80, and cooling flows into air wherein thus.

[second mode of execution]

With the compressor A ' that describes according to second mode of execution.Additionally, represent with similar reference character according to the similar parts of the compressor of first mode of execution and the description of those parts will be omitted.Fig. 5 and Fig. 6 are the External views according to the compressor A ' of second mode of execution.Tracheae 80 ' is arranged in fan F and cylinder 10a ' between the 10d ', and the periphery along fan F has annular shape when observing along the axial sense of rotation of fan F.Branched pipe 81a ' to 81d ' comprise be arranged in cylinder cap 15a ' to the branching portion 84a ' of the top of the upper surface of 15d ' to 84d '.Branching portion 84a ' is connected to 85d ' and cylinder cap 15a ' to 15d ' by joining portion 85a ' respectively to 84d '.

Branching portion 84a ' is connected by connecting tube G ' with 84b ', and branching portion 84b ' also is connected by connecting tube G ' with 84c '.Tracheae 80 ' forms and is arranged in fan F and cylinder 10a ' in the above described manner to the annular shape between the 10d '.Therefore, whole tracheae 80 ' is exposed to the air that flows out from fan F substantially, effectively cools off the air that flows into tracheae 80 ' thus.

Additionally, although tracheae 80 ' is arranged in fan F and cylinder 10a ' between the 10d ', air flows to cylinder 10a to 10d from fan F directly or indirectly, cools off cylinder 10a ' thus to 10d '.

As shown in Figure 6, cylinder 10a ' each to the 10d ' equates with distance between the fan.That is to say that cylinder 10a ' is positioned at the equal height place to 10d '.This can cool off cylinder 10a ' equably to 10d '.

Fig. 7 is that the line B-B along Fig. 5 cuts open the sectional view of getting.Be different from first mode of execution, running shaft 42 is connected with these pistons with the such order of piston 25b ', 25a ', 25c ' and 25d ' from an end to the other end of this running shaft.At this, piston 25a ' and 25c ' are of similar shape, and arrange to be connected with running shaft 42 opposed to each other.Similarly, piston 25b ' and 25d ' are of similar shape, and arrange to be connected with running shaft 42 opposed to each other.At this, the shape of each among piston 25b ' and the 25d ' all is different from each the shape among piston 25a ' and the 25c '.That is to say that for all cylinder 10a ' are arranged in equal height to 10d ', the shape of each among piston 25b ' and the 25d ' all is different from each the shape among piston 25a ' and the 25c '.

Additionally, tracheae 80 ' has annular shape, thereby compares with complex-shaped situation and to have reduced the pressure loss.

[the 3rd mode of execution]

With the compressor A that describes according to the 3rd mode of execution ".Fig. 8 and Fig. 9 are the compressor A according to the 3rd mode of execution " External view.The main part FM ' of fan F ' is provided with a plurality of hole FH.In addition, yoke 44 ' is provided with the position corresponding to the hole of hole FH.Therefore, can promote motor to pass through the thermal radiation of hole FH.

Tracheae 81ab is arranged in cylinder cap 15a " and 15b " between, and tracheae 81cd is arranged in cylinder cap 15c " and 15d ' ' between.Tracheae 81ab and cylinder cap 15a " and 15b ' ' in is communicated with, and linearly the extension.Similarly, tracheae 81cd and cylinder cap 15c " and 15d ' ' in is communicated with and extension linearly.Tracheae 81ab and 81cd are made by the metal such as aluminium or stainless steel, but are not limited to these.Tracheae 81ab inserts and to be respectively formed at cylinder cap 15a " and the hole at the side surface place of 15b ' ' in.Tracheae 81cd inserts and to be respectively formed at cylinder cap 15c " and the hole at the side surface place of 15d ' ' in.

As shown in Figure 8, tracheae 81ab and 81cd are partly towards fan F '.Particularly, tracheae 81ab and 81cd are towards ring part FR.Air blows to tracheae 81ab and 81cd from fan F ', and cooling flows into the air among tracheae 81ab and the 81cd thus.And, adjacent cylinder cap 15a " with 15b " be connected by single tracheae 81ab.Therefore, the quantity of parts reduces, and the quantity of assembling process reduces.

As shown in Figure 9, in cylinder cap 15a ' ', form hole 19a ' ' at the side surface place towards cylinder cap 15d ' '.Similarly, as unshowned among Fig. 9, in cylinder cap 15d ' ', form the hole at the side surface place towards cylinder cap 15a ' '.These holes are as the relief opening of discharging air.Additionally, in cylinder cap 15b ' ', form hole 19b ' ' at the side surface place towards cylinder cap 15c ' '.As unshowned among Fig. 9, in cylinder cap 15c ' ', form the hole at the side surface place towards cylinder cap 15b ' '.These holes are closed by inserting bolt therein.

Therefore, air is from cylinder cap 15b " side is to cylinder cap 15a " the side inflow tracheae 81ab.Air is from cylinder cap 15c " side is to cylinder cap 15d " the side inflow tracheae 81cd.Therefore, in cylinder cap 15a ' ', at cylinder 10a " and 10b ' ' in each in the compressed and air of being discharged from it flow together.In cylinder cap 15d ' ', at cylinder 10c " and 10d ' ' in each in the compressed and air of being discharged from it flow together.Therefore, cylinder cap 15a " with 15d " be used for making air compressed at different cylinders and that discharged from it to flow together.Therefore, the pipe that does not need to make such air to flow has together reduced the quantity of pipe thus.

Additionally, as first and second mode of executions, crankcase 20 ' in ' bottom surface be formed with suction port air is introduced this crankcase 20 ' '.

In first and second mode of executions, can adopt fan F ' to replace fan F, and can adopt the yoke according to the 3rd mode of execution to replace yoke 44.

[the 4th mode of execution]

With the compressor A ' that describes according to the 4th mode of execution ".Figure 10 and Figure 11 are the compressor A ' according to the 4th mode of execution " External view.Tracheae 81ab ' is arranged in cylinder cap 15a ' " and 15b ' " between, tracheae 81bc ' is arranged in cylinder cap 15b ' " and 15c ' " between, and tracheae 81cd ' is arranged in cylinder cap 15c ' " and 15d ' " between.Among tracheae 81ab ', 81bc ' and the 81cd ' each be crooked about 90 degree all.For example, tracheae 81ab ', 81bc ' and 81cd ' are made of metal.As shown in figure 11, at cylinder cap 15a ' " in towards cylinder cap 15d ' " the side surface place form hole 19a ' ".This hole 19a ' " as relief opening.Therefore, air is with cylinder 10d ' ", 10c ' ", 10b ' " and 10a ' " such order flows in these cylinders.

When observing along the axial direction of running shaft 42 as shown in figure 10, fan F ' is not towards tracheae 81ab ', 81bc ' and 81cd '.Yet, when when observing with respect to the true dip direction of the axial direction of running shaft 42, fan F ' any tracheae in tracheae 81ab ', 81bc ' and the 81cd '.This is because do not have member between ring part FR and tracheae 81ab ', 81bc ', 81cd '.Because fan F ' is in the above described manner towards tracheae 81ab ', 81bc ' and 81cd ', cooling flows into the air among tracheae 81ab ', 81bc ' and the 81cd ' thus.

Although illustrative embodiments of the present invention at length is shown, the invention is not restricted to above-mentioned mode of execution, and under situation about not departing from the scope of the present invention, can form other mode of execution, modification and modification.

The quantity of cylinder is not limited to four.Fan F and F ' are in the above-described embodiment towards cylinder body 12a to 12d.Yet, can make blade part FB etc. become big, make fan F and F ' towards cylinder cap 15a to 15d.

In the above-described embodiment, crankcase 20 is provided with suction port 22a so that air is introduced the 13a of chamber from the outside.Yet, the invention is not restricted to this.For example, cylinder 10a can be provided with such hole.

In first and second mode of executions, a plurality of pipes connect by the connecting tube G that is made by rubber.Yet, the invention is not restricted to this.For example, a plurality of pipes can directly be engaged to be connected to each other.

Claims

1. compressor, this compressor comprises:

Cylinder;

Piston, this piston are arranged in the described cylinder;

Outer rotor-type motor, this outer rotor-type motor make the to-and-fro motion in described cylinder of described piston;

Tracheae, this tracheae is communicated with described cylinder, makes air flow in response to the to-and-fro motion of described piston in the described tracheae; And

Fan, this fan are fixed to the rotor of described outer rotor-type motor and towards at least a portion of described tracheae.

2. compressor according to claim 1, wherein,

Described cylinder comprises the first adjacent cylinder and second cylinder, and

Described tracheae comprises:

First air portion, this first air portion and interior connection of described first cylinder that is located between described first air portion and the described fan;

Be communicated with in second air portion, this second air portion and described second cylinder and be located between described fan and described second cylinder; And

Interconnecting part, this interconnecting part extend between described first cylinder and described second cylinder and make this first cylinder and this second cylinder be connected with each other logical.

3. compressor according to claim 2, wherein,

Described first cylinder is near described fan, and described second cylinder is away from described fan.

4. compressor according to claim 1, wherein, described tracheae is arranged between described cylinder and the described fan, and when observing along the axial direction of the rotation of described fan, described tracheae has the general toroidal shape along the periphery of described fan.

5. compressor according to claim 1, wherein,

Described tracheae makes in described first cylinder and described second cylinder and communicates with each other.

6. according to each the described compressor in the claim 1 to 4, wherein, described fan is arranged along the radial direction of described rotor.

7. vacuum machine, this vacuum machine comprises:

Cylinder;

Piston, this piston are arranged in the described cylinder;

8. vacuum machine according to claim 7, wherein,

Described tracheae comprises:

9. vacuum machine according to claim 8, wherein,

10. vacuum machine according to claim 7, wherein, described tracheae is arranged between described cylinder and the described fan, and when observing along the axial direction of the rotation of described fan, described tracheae has the general toroidal shape along the periphery of described fan.

11. vacuum machine according to claim 7, wherein,

12. according to each the described vacuum machine in the claim 7 to 10, wherein, described fan is arranged along the radial direction of described rotor.