CN108691749A - Check-valves and compressor - Google Patents
Check-valves and compressor Download PDFInfo
- Publication number
- CN108691749A CN108691749A CN201810286187.4A CN201810286187A CN108691749A CN 108691749 A CN108691749 A CN 108691749A CN 201810286187 A CN201810286187 A CN 201810286187A CN 108691749 A CN108691749 A CN 108691749A
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- Prior art keywords
- valve
- check
- spool
- valves
- base part
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Check Valves (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
A kind of check-valves of present invention offer and compressor, the check-valves have the composition further minimized that can realize spool.Check-valves (40) has valve base part (50), spool (60), valve casing (70) and force application part (80).Valve base part (50) is formed with valve opening (51).Spool (60) includes that/small the main part (62) (reducing diameter part) of the diameter on the head (61) (wide diameter portion) of contact and diameter ratio head (61) is detached with valve base part (50).The multiple columnar parts (74) for being set to the guide portion (71S) of the side opposite with valve base part (50) side and guide portion (71S) being connected to valve base part (50) are integrally formed in valve casing (70).Guide portion (71S) guides the movement in the opening and closing direction of spool (60) by being slided in main part (62).Multiple columnar parts (74) have scheduled interval at it between head (61), and the refrigerant from valve opening (51) passes through between the adjacent columnar part (74) in multiple columnar parts (74).
Description
Technical field
The present invention relates to check-valves and compressor.
Background technology
Refrigerant flows back and has check-valves compressor in order to prevent.As disclosed in following patent documents 1,2, only
Valve is returned for example to have:It is formed with the valve base part of valve opening;The valve that valve opening is opened and closed by detaching/contacting with valve base part
Core;The force application part to exert a force to valve closing direction to spool;And store spool and force application part and the valve for being linked to valve base part
Shell.
The spool of check-valves disclosed in patent document 1 (Japanese Unexamined Patent Publication 2015-140782 bulletins) include round plate and
Cylindrical portion.Round plate has the disc-shape for blocking the front end of cylindrical portion, and round plate with valve base part by detaching/contacting
Valve opening is opened and closed.Cylindrical portion is slided in a part (peripheral wall portion) for valve casing.It is slided with peripheral wall portion to guide by cylindrical portion
Spool so that the mobile stabilization of spool.
In the spool of check-valves disclosed in patent document 1, the peripheral surface of round plate and the peripheral surface of cylindrical portion have
Substantially it is total to relation of plane.Spool (the English of check-valves disclosed in patent document 2 (Japanese Unexamined Patent Publication 2016-191354 bulletins)
Text:Valve core) in, the peripheral surface of round plate and the peripheral surface of cylindrical portion, which similarly have, is substantially total to relation of plane.
Existing technical literature
Patent document
Patent document 1:Japanese Unexamined Patent Publication 2015-140782 bulletins
Patent document 2:Japanese Unexamined Patent Publication 2016-191354 bulletins.
Invention content
Problems to be solved by the invention
In the spool of check-valves, round plate (head of spool) has the function of that this is opened and closed to valve opening in order to realize
Required size and shape.On the other hand, the cylindrical portion (main part of spool) of spool has in order to by being set to valve
The guide portion (peripheral wall portion) of shell is slided to realize the stable mobile required size and shape of spool.
In check-valves disclosed in patent document 1,2, the peripheral surface on head and the peripheral surface of main part are configured to have
Substantially it is total to relation of plane.The peripheral surface on head and the peripheral surface of main part be configured to have substantially be total to relation of plane this case that from
Head and main part have the function of that different from each other and/or purpose this viewpoint is set out and are not necessarily required.
It is slided come real according to the function and purpose for valve opening being opened and closed this head and by the peripheral wall portion in valve casing
The function and purpose of this main part of the existing movement of stabilization of spool, make the size and shape of head and main part optimize, by
This can realize the miniaturization of spool entirety, and then can also realize the miniaturization of check-valves entirety, the pressure equipped with check-valves
The miniaturization of contracting machine etc..
The present invention is the invention made in view of actual conditions as described above, and its purpose is to provide one kind, have can
It realizes the check-valves for the composition of spool further minimized and has the compressor of such check-valves.
Technical teaching for solving the problem was
Check-valves based on the present invention has:Valve base part, the valve base part have cricoid shape and are formed in inside
There is valve opening;Spool, the spool are expanding with above-mentioned valve opening is opened and closed by detaching/contacting with above-mentioned valve base part
The small reducing diameter part of the diameter of portion and the above-mentioned wide diameter portion of diameter ratio;Force application part, the force application part is to close to above-mentioned valve base part
Direction exerts a force to above-mentioned spool;And valve casing, which stores above-mentioned spool and above-mentioned force application part in inside, in above-mentioned valve casing
In, it is integrally formed the guide portion for being set to the side opposite with above-mentioned valve base part side and connects guide sections
In multiple columnar parts of above-mentioned valve base part, guide sections in above-mentioned reducing diameter part by sliding to the opening and closing side of above-mentioned spool
To movement guide, multiple above-mentioned columnar parts its between above-mentioned wide diameter portion have scheduled interval, come from above-mentioned valve
The refrigerant in hole passes through between the adjacent above-mentioned columnar part in multiple above-mentioned columnar parts.
In above-mentioned check-valves, it is preferred that above-mentioned valve casing has more in the side connection opposite with above-mentioned valve base part
The bottom of a above-mentioned columnar part, above-mentioned bottom include base plate and rake, the rake be set to above-mentioned base plate outside,
And extend in a manner of with far from above-mentioned base plate and close to above-mentioned valve base part, multiple above-mentioned columnar parts, which are connected to, above-mentioned inclines
The end of the side opposite with above-mentioned base plate in inclined portion.
In above-mentioned check-valves, it is preferred that guide sections are slided in the peripheral surface of above-mentioned reducing diameter part, are drawn by above-mentioned
Portion is led to be slided in the peripheral surface of above-mentioned reducing diameter part to guide the movement of above-mentioned spool.
In above-mentioned check-valves, it is preferred that there is above-mentioned reducing diameter part the shape of tubular, above-mentioned force application part to be configured at
State the inside of reducing diameter part.
In above-mentioned check-valves, it is preferred that above-mentioned valve casing is provided with limiting unit, the limiting unit be formed as from side with
Above-mentioned force application part is opposite, limits the position offset of above-mentioned force application part.
In above-mentioned check-valves, it is preferred that be formed with direction in the respective top end part of multiple above-mentioned columnar parts
1st protrusion of inside shape outstanding, the peripheral surface of above-mentioned valve base part be formed with engage with above-mentioned 1st protrusion it is the 1st recessed
Portion.
In above-mentioned check-valves, it is preferred that the inner surface in above-mentioned 1st protrusion is formed with to be protruded inwardly with court
Shape the 2nd protrusion, be formed with the second recesses engaged with above-mentioned 2nd protrusion in above-mentioned 1st recess portion.
Compressor based on the present invention has the above-mentioned check-valves and shell based on the present invention, which forms in inside
Have for refrigerant by refrigerant passage, above-mentioned valve base part is pressed into the inner wall of above-mentioned refrigerant passage, multiple above-mentioned columns
The respective top of supply line in shape portion is between above-mentioned valve base part and the inner wall of above-mentioned refrigerant passage.
The effect of invention
According to above-mentioned check-valves, the reducing diameter part for the spool that guide portion is guided is formed in position in the inner part, so as to
It enough realizes the miniaturization of spool, such as the outer shape by reducing valve casing, can also realize the miniaturization of check-valves entirety, be
The miniaturization of compressor extremely equipped with check-valves etc..
Description of the drawings
Fig. 1 is the sectional view for showing the compressor 10 in embodiment 1.
Fig. 2 is the sectional view of the II-II lines in Fig. 1.
Fig. 3 is the sectional view of the III-III lines in Fig. 1.
Fig. 4 is the sectional view for enlargedly showing the region surrounded by IV lines in Fig. 2, indicates the section structure of check-valves 40
It makes.
Fig. 5 is the front view for showing the check-valves 40 in embodiment 1.
Fig. 6 is the stereogram for showing the check-valves 40 in embodiment 1.
Fig. 7 is the stereogram of the state after the decomposition of check-valves 40 shown in embodiment 1.
Fig. 8 is to show valve casing 70 about the check-valves 40 in embodiment 1 and be linked to valve base part via columnar part 74
The stereogram of situation when 50.
Fig. 9 is the sectional view for the valve opening state for showing the check-valves 40 in embodiment 1.
Figure 10 is the stereogram for the valve opening state for showing the check-valves 40 in embodiment 1.
Figure 11 is the sectional view for showing the check-valves 40Z in comparative example.
Figure 12 is the sectional view for another carrying form for showing the check-valves 40 in embodiment 1.
Figure 13 is the sectional view for showing the check-valves 40A in embodiment 2.
Figure 14 is the sectional view for showing the check-valves 40B in the variation of embodiment 2.
Figure 15 is the sectional view for showing the check-valves 40C in embodiment 3.
Figure 16 is the sectional view for showing the check-valves 40D in embodiment 4.
[Fu Tubiaojishuoming ]
10 compressors, 11 shells, 12 back casings, 12a peripheral walls, 13 procapsids, 14 cylinder blocks, 14a, 14b recess portions, 15 sides
Plate, 15d oil supply passageway, 16 rotary shafts, 18 rotors, 18a slots, 19 blades, 20 suction chambers, 21 discharge chambes, 22 refrigerant passages,
23 suction inlets, 24 connector portions, 25 pipings, 30 discharge rooms, 31 outlets, 32 dump valves, 34 discharge ports, 35 discharging areas, 36
Oil eliminator, 37 access, 40,40A, 40B, 40C, 40D, 40Z check-valves, 50 valve base parts, 51 valve openings, 51C central shafts,
52,65,66 peripheral surfaces, 53 the 1st recess portions, 54 second recesses, 60,60Z spools, 61 heads, 62 main parts, 63 surfaces, 63T bulgings
Portion, 64 back sides, 67 inner peripheral surfaces, 68 hollow spaces, 70,90 valve casings, 71 guide portions, 71A, 73 protruding portions, 71S circumferential surfaces, 72,92 bottoms
Portion, 72A base plates, 72B, 72C, 74A rakes, 73A, 94 cylindrical portions, 73S limiting units, 74 columnar parts, 74B flat parts, 74T
Top end part, 75 the 1st protrusions, 76 the 2nd protrusions, the ends 77,77A, the lower ends 77B, 79 relief portion, 80 force application parts, 96 intercommunicating pores, AR
Arrow.
Specific implementation mode
Embodiment is illustrated referring to the drawings.Identical ginseng is marked for identical component and comparable component
According to number, repeat description is not repeated sometimes.
[Embodiment 1]
(compressor 10)
Fig. 1 is the sectional view for showing the compressor 10 in embodiment 1.Fig. 2 is the sectional view of the II-II lines in Fig. 1.
Fig. 3 is the sectional view of the III-III lines in Fig. 1.Compressor 10 is for example equipped on vehicle, is used for the air-conditioning device of vehicle.
Although compressor 10 is blade (English:Vane) formula compressor, but thought as disclosed below is readily applicable to the (English that is vortexed
Text:Scroll) formula, ramp type and Roots (Root) formula compressor.
As shown in Figure 1, compressor 10 has shell 11 and check-valves 40.Shell 11 includes that back casing 12 and procapsid 13 are made
For its inscape, suction chamber 20 is formed in inside.Back casing 12 has peripheral wall 12a (with reference to Fig. 2, Fig. 3).Procapsid 13 has
There is cylinder block 14.Cylinder block 14 is integrated with procapsid 13, is incorporated in back casing 12.It is bonded to side plate in cylinder block 14
15。
The inside of cylinder block 14 is provided with rotor 18.The peripheral surface of rotor 18 (Fig. 2, Fig. 3) is provided with multiple slots
18a.It is accommodated with blade 19 with can passing in and out in the inside of slot 18a.The rotation of accompanying rotation axis 16, rotor 18 rotate.In rotor 18
Peripheral surface, the inner wall of cylinder block 14, adjacent pair blade 19, drawn between procapsid 13 (Fig. 1) and side plate 15 (Fig. 1)
Separate discharge chambe 21.
It is formed with recess portion 14a with spreading the complete cycle (with reference to Fig. 2) in the circumferential direction of cylinder block 14 in the peripheral surface of cylinder block 14.
Suction chamber 20 is formed by the inner peripheral surface of the recess portion 14a and back casing 12 that are set to cylinder block 14.Suction chamber 20 is formed in cylinder block
Between 14 (recess portion 14a) and back casing 12 (peripheral wall 12a).It is set to the refrigerant passage 22 of shell 11 (back casing 12) (herein
For inhalation port) it is connected to suction chamber 20.Details is described later, refrigerant passage 22 be provided with prevent from
Check-valves 40 of the suction chamber 20 to the reflux of the refrigerant of refrigerant passage 22.
A pair of of the suction inlet 23 (Fig. 2) for being communicated in suction chamber 20 is formed in cylinder block 14.When in suction stroke, pressure
Contracting room 21 is connected to suction chamber 20 via suction inlet 23.The peripheral surface of cylinder block 14 be also equipped with a pair of of recess portion 14b (Fig. 1,
Fig. 3).Discharge room 30 is marked off by the inner peripheral surface of recess portion 14b and back casing 12 (peripheral wall 12a).Being formed in cylinder block 14 will press
The outlet 31 (Fig. 3) that contracting room 21 is connected to discharge room 30.Outlet 31 is opened and closed by dump valve 32.In 21 quilt of discharge chambe
The refrigerant gas having compressed is pushed dump valve 32 open and is discharged to discharge room 30 via outlet 31.
As shown in Figure 1, the peripheral wall 12a in back casing 12 is formed with discharge port 34.It is connected in discharge port 34 and does not scheme
The condenser in the external refrigerant circuit shown.In the rear side of back casing 12, discharging area 35 (Fig. 1) is marked off by side plate 15.
Oil eliminator 36 is equipped in discharging area 35.
It is formed with access 37 (Fig. 1, Fig. 3) in side plate 15 and oil eliminator 36.Access 37 makes discharge room 30 and oil
It is connected to from device 36.It is formed with oily supply passageway 15d (Fig. 1) in side plate 15.Oily supply passageway 15d will remain in discharging area 35
The lubricating oil guide groove 18a (blade groove) of bottom.
(check-valves 40)
Referring to Figures 1 and 2, it is arranged to penetrate through (the English of back casing 12 as the refrigerant passage of inhalation port 22:shell)
Peripheral wall 12a, be provided with portion connector (joint) 24 of tubular in a coupled condition in the outside of refrigerant passage 22.It is connecing
Head 24 is connected with piping 25.Refrigerant (refrigerant gas) flows into refrigerant passage from evaporator (not shown) via piping 25
In 22.Check-valves 40 is provided in refrigerant passage 22.
Fig. 4 is the sectional view for enlargedly showing the region surrounded by IV lines in Fig. 2, indicates the section structure of check-valves 40
It makes.Fig. 5 and Fig. 6 is respectively the front view and stereogram for showing check-valves 40.
Fig. 7 is the stereogram for showing the state after the decomposition of check-valves 40.As shown in Figure 4 to 7, check-valves 40 has valve seat
Component 50, spool 60, valve casing 70 and force application part 80 (Fig. 4).
In the following description, term as inner side and outer side defines as below.That is, valve base part 50 (connects down
To be described to details) valve opening 51 have central shaft 51C (Fig. 4).Refer to relative to arbitrary on the inside of arbitrary component
Component leans on the side (close to the side of central shaft 51C) of central shaft 51C, refer on the outside of arbitrary component relative to arbitrary component with
The opposite side in the sides central shaft 51C (side far from central shaft 51C).
(valve base part 50)
The valve base part 50 of check-valves 40 has cricoid shape, is set in refrigerant passage 22.Valve base part 50 exists
Inside be formed with for refrigerant by valve opening 51.The valve opening 51 of present embodiment is cylindric centered on central shaft 51C
Space.
The component (being back casing 12 in present embodiment) point of valve base part 50 and the internal face for forming refrigerant passage 22
It opens up and sets, the internal face (Fig. 4) of refrigerant passage 22 is fixed on by indentation.It is formed in the peripheral surface 52 of valve base part 50
A pair of 1st recess portion 53.It is each formed with second recesses 54 in the 1st recess portion of each of a pair of 1st recess portion 53.
(spool 60)
The spool 60 of check-valves 40 includes head 61 (wide diameter portion) and main part 62 (reducing diameter part).Head 61 is shaped generally as
It is discoid, there is surface 63, the back side 64 and peripheral surface 65.It is formed with the bulging with the substantially shape of dome shape on surface 63
Portion 63T.Spool 60 carries out valve opening 51 by the surface 63 on the head 61 as wide diameter portion detaches/contacts with valve base part 50
Opening and closing.
Main part 62 is set to 64 side of the back side on head 61.It is inside that main part 62 is set to the slave peripheral surface 65 in the back side 64
The part that side is left, and upwardly extended in the side far from head 61.Main part 62 has the shape of tubular, the periphery of main part 62
Face 66 has the shape of barrel surface.The diameter of main part 62 is smaller than the diameter on head 61.Head 61 forms the wide diameter portion of spool 60,
Main part 62 forms the reducing diameter part of spool 60.It is formed with hollow space 68, force section in the inside of the inner peripheral surface 67 of main part 62
Part 80 is configured in hollow space 68 (inside of main part 62) (with reference to Fig. 4).In addition, the section shape and main part on head 61
62 section shape is not limited to circle, can also be ellipse and oblong etc..
(valve casing 70)
Valve casing 70 include guide portion 71, bottom 72, protruding portion 73 and multiple columnar parts 74 (in the present embodiment for
A pair of columnar portion 74), the integration of these elements.Spool 60 and force application part 80 are accommodated in the inside of valve casing 70 by valve casing 70.
Bottom 72 includes base plate 72A and a pair of angled portion 72B, 72C.The shape that base plate 72A extends with tabular
Shape, a pair of angled portion 72B, 72C are respectively arranged at two outsides on the extending direction of base plate 72A.A pair of angled portion 72B, 72C
It is located at reciprocal side relative to base plate 72A.A pair of angled portion 72B, 72C is connected to from a pair of angled portion 72B, 72C
The outside for being partially toward reciprocal side of base plate 72A extends and with far from base plate 72A and close to valve seat
The mode of component 50 extends.The face opposite with main part 62 of base plate 72A is abutted as by the main part 62 with spool 60
Come limit the evolution of spool 60 to movement retainer and function.In bottom 72, opposite with valve base part 50 one
Side is connected with aftermentioned a pair of columnar portion 74.
Guide portion 71 has the shape of tubular, is built up on bottom 72, and upwardly extended in the side for leaving bottom 72.Guiding
Portion 71 and bottom 72 are set to the side opposite with the side where valve base part 50 relative to spool 60 (head 61).Guide portion
71 are included the main part 62 (reducing diameter part) and force application part 80 of spool 60.The circumferential surface 71S of guide portion 71 (is herein inner circumferential
Face) movement in the opening and closing direction of spool 60 is guided by main part 62 (peripheral surface 66) sliding in spool 60.Draw
Lead portion 71 (circumferential surface 71S) be set to the position in the inner part of columnar part 74 of the gabarit than forming valve casing 70 can by this composition
So that the main part 62 that guide portion 71 is guided is also formed in position in the inner part.
Protruding portion 73 is also built up on bottom 72, and is upwardly extended in the side for leaving bottom 72.Protruding portion 73 has cylinder
The peripheral surface of the shape of shape, protruding portion 73 is construed as limiting portion 73S.Limiting unit 73S is formed as opposite from side and force application part 80
(being opposite from inside in present embodiment), the position offset of force application part 80 is limited by being abutted with force application part 80.
A side in a pair of columnar portion 74 is connected to one opposite with the side where base plate 72A in rake 72B
The end 77 of side.Another party in a pair of columnar portion 74 is connected to opposite with the side where base plate 72A in rake 72C
Side end 77.A pair of columnar portion 74 all has the shape of leaf spring, and is formed as relative to each other.A pair of columnar portion 74 exists
Position position in the outer part than the circumferential surface 71S of guide portion 71 is extended parallel to from end 77 towards 50 side of valve base part.It is a pair of
The respective top end part 74T of columnar part 74 is linked to valve base part 50, and thus valve casing 70 (guide portion 71 and bottom 72) is connected to
Valve base part 50.In the state that valve casing 70 is linked to valve base part 50, the peripheral surface on the head 61 of spool 60 and multiple columns
Portion 74 is configured to having scheduled interval (gap) opposite and does not slide mutually.
Fig. 8 is the stereogram for showing situation when valve casing 70 is linked to valve base part 50 via columnar part 74.In this implementation
In mode, the respective top end part 74T in a pair of columnar portion 74, which is formed with, to be had towards the 1st protrusion of inside shape outstanding
75.1st protrusion 75 engages with the 1st recess portion 53 of the setting of peripheral surface 52 in valve base part 50.
Inner surface in the 1st protrusion 75, which is formed with, to be had towards the 2nd protrusion 76 of inside shape outstanding.2nd protrusion
76 engage with the second recesses 54 of the setting of peripheral surface 52 in valve base part 50.When into joining line, make a pair of columnar portion 74 it
Between interval expand outward in the state of, between a pair of of top end part 74T configure valve base part 50.2nd protrusion 76 is embedded in
To second recesses 54, interior, the 1st protrusion 75 is embedded into the 1st recess portion 53, to which valve casing 70 is linked to valve base part 50.
(force application part 80)
With reference to Fig. 4, force application part 80 is made of spring (helical spring).Force application part 80 is set to the bottom 72 of valve casing 70
Between the head 61 of spool 60, exert a force to the direction close to valve base part 50, that is, valve closing direction to spool 60.
(effect and effect)
As shown in Figure 9 and Figure 10, when refrigerant flows, spool 60 overcomes force due to by the pressure from refrigerant
The force of component 80 is mobile to the direction (valve opening position) for opening valve opening 51.Refrigerant valve opening 51 and a pair of columnar portion 74 it
Between space (between the adjacent columnar part in multiple columnar parts) by by suction chamber 20 (Fig. 1, Fig. 2) flow (arrow
AR).When the pressure (being herein suction pressure) of refrigerant becomes hour, spool 60 is by the force of force application part 80 and to by valve opening
51 direction (valve closing direction) movements (Fig. 4) closed.
Valve opening 51 is closed by the way that the head of spool 60 61 is connected to valve base part 50.Spool 60 to valve opening position,
When valve closing direction is moved, because of the presence of the circumferential surface 71S of guide portion 71, the position offset of valve casing 70 and/or force application part 80 is pressed down
System.The circumferential surface 71S of the guide portion 71 of valve casing 70 is in the inside of columnar part 74, passes through the 62 (peripheral surface of main part in spool 60
66) it slides and the movement of spool 60 is guided.As described above, the head 61 of spool 60 have in order to realize to valve opening 51 into
The row opening and closing required size and shape of this function.
On the other hand, the main part 62 of spool 60 has to pass through the circumferential surface in the guide portion 71 for being set to valve casing 70
71S slides to realize the stable mobile required size and shape of spool 60.For valve casing 70 to be linked to valve base part 50
Position of a pair of columnar portion 74 in the position of the circumferential surface 71S than guide portion 71 in the outer part, from end 77 towards valve base part 50
Side extends parallel to.
About the spool 60 of present embodiment, the peripheral surface 65 on head 61 does not have coplanar with the peripheral surface 66 of main part 62
Relationship, compared with the shape of peripheral surface 65, the shape of peripheral surface 66 is smaller.Accordingly, with respect to spool 60, the periphery with head 61
Face 65 can constitute light weight and miniaturization compared with the spool in the case that the peripheral surface 66 of main part 62 has relation of plane altogether
Spool.That is, in the present embodiment, the function that valve opening 51 is opened and closed, simultaneously is assigned to the head 61 of spool 60
And the function of being directed to slide in guide portion 71 (circumferential surface 71S) is assigned to the main part of spool 60 62, dispersedly it is arranged each
Function thus enables that the shape of main part 62 becomes smaller, and can constitute the spool 60 of miniaturization.
(comparative example)
Figure 11 is the sectional view for showing the check-valves 40Z in comparative example.Check-valves 40Z has valve base part 50, spool
60Z, force application part 80 and valve casing 90.Valve casing 90 is integrally formed as bottomed tube, has bottom 92 and cylindrical portion 94.In cylinder
Shape portion 94 is formed with intercommunicating pore 96, and the upper end of cylindrical portion 94 is linked to valve base part 50.
In the spool 60Z of comparative example, the peripheral surface 65 on head 61 is configured to have altogether with the peripheral surface 66 of main part 62
Relation of plane.According to this constitution, the shape of peripheral surface 65 is identical as the shape of peripheral surface 66, the shape of peripheral surface 66 is by peripheral surface
65 shape limitation, it is difficult to realize the whole miniaturization of spool 60Z.
(other effects of embodiment 1 and effect)
With reference to Fig. 9, in the check-valves 40 of embodiment 1, spool 60 has composition as described above, than guide portion 71
The position position in the outer part of circumferential surface 71S be provided with a pair of columnar portion 74.The part of the lower end side in a pair of columnar portion 74 is almost
Without the guiding function for spool 60 (when spool 60 tilts, it is also possible to pass through 74 guide spool 60 of columnar part).Cause
This, by forming rake 72B, 72C in bottom 72, so as to be easy the lower end side formation relief portion 79 in columnar part 74.
By the formation of relief portion 79, such as flow path area can be expanded and reduce the resistance to fluid.
On the other hand, in the case of check-valves 40Z (Figure 11), the part of the lower end side of cylindrical portion 94 also has to spool
60 substantive guiding function, therefore, it is difficult to the position for being equivalent to relief portion 79 is formed in the lower end side of cylindrical portion 94.Evacuation
The formation in portion 79 is related to the miniaturization of the part of the lower end side of check-valves 40, therefore, the energy compared with check-valves 40Z of check-valves 40
Enough realize the whole miniaturization of check-valves 40.
Referring to Fig.1 2, in the case of above-mentioned embodiment 1 (Fig. 2), in the refrigerant passage being connected with suction chamber 20
22 setting check-valves 40.Because of the presence of relief portion 79 (Fig. 9), also check-valves 40 can be made to become to hold in the assembling of compressor 10
Easily.Check-valves 40 is set to as shown in Figure 12 and needs to prevent position of the refrigerant to opposite direction flowing, Ke Yishe
It is placed in the arbitrary refrigerant passage 22 in compressor.
The feelings of check-valves 40 are arranged in refrigerant passage 22 in the inside of the component for being formed in tubular as shown in Figure 12
Under condition, because of the presence of relief portion 79 (Fig. 9), the component (such as shell 11) for the tubular for constituting refrigerant passage 22 can be also realized
Localized mini, can reduce to configure 40 required space of check-valves, so can also realize compressor, carry pressure
The miniaturization of the vehicle of contracting machine etc..In the part for not realizing the component (such as shell 11) for the tubular for constituting refrigerant passage 22
In the case of miniaturization, because of the formation of relief portion 79, such as flow path area can be expanded and reduce the resistance to fluid.
As shown in figure 8, being set to the 1st protrusion 75 and the 1st of the setting of peripheral surface 52 in valve base part 50 of columnar part 74
Recess portion 53 engages.By the engaging, to valve casing 70 (columnar part 74) relative to valve base part 50 to the directions arrow A (relative to column
The parallel direction of the length direction in shape portion 74) movement and during valve casing 70 is with the position of the 2nd protrusion 76 relative to valve base part 50
The heart is limited to the rotation in the directions arrow D, and therefore, valve casing 70 becomes difficult to be detached from relative to valve base part 50.
The 2nd protrusion 76 that inner surface in the 1st protrusion 75 is arranged engages with the second recesses 54 of valve base part 50.Pass through
The engaging, the movement relative to valve base part 50 to the directions arrow A and valve casing 70 (columnar part 74) to valve casing 70 (columnar part 74)
It is limited to the movement of the directions arrow B (width direction of columnar part 74) relative to valve base part 50.By making the 2nd protrusion
76 is best relative to the inlet of second recesses 54 and the coefficient of elasticity (cross sectional moment of inertia) about the directions arrow C of columnar part 74
Change, so that even if flexible deformation has occurred to the directions arrow C (direction for component 50 of lifting off a seat) in columnar part 74
When, valve casing 70 is also difficult to be detached from from valve base part 50.
As shown in figure 4, component (this implementation of the valve base part 50 of check-valves 40 and the internal face for forming refrigerant passage 22
It is back casing 12 in mode) it is provided separately, and the internal face of refrigerant passage 22 is fixed on by indentation.A pair of columnar portion 74
Respective top end part 74T between valve base part 50 and the inner wall of refrigerant passage 22.Refrigerant passage 22 it is interior
Wall limits the movement in top end part 74T towards outside, so as to make valve casing 70 be difficult to be detached from from valve base part 50.
[Embodiment 2]
Figure 13 is the sectional view for showing the check-valves 40A in embodiment 2.In the check-valves 40 of embodiment 1, in valve
The inside of the main part 62 of core 60 configures force application part 80, and the circumferential surface 71S (inner peripheral surface) of guide portion 71 is in the periphery of main part 62
It slides in face 66.
On the other hand, in the check-valves 40A of embodiment 2, force section is configured in the outside of the main part 62 of spool 60
Part 80.Protruding portion 71A is corresponding with the protruding portion 73 in embodiment 1.In the present embodiment, protruding portion 71A is as guide portion
It functions, the circumferential surface 71S (being herein peripheral surface) of protruding portion 71A is slided in the inner peripheral surface 67 of main part 62, to guiding valve
The movement of core 60.
The inner peripheral surface of cylindrical portion 73A is construed as limiting portion 73S.Cylindrical portion 73A is located at and spool 60 across force application part 80
The opposite side of main part 62.Limiting unit 73S is formed as opposite (in the present embodiment for from outer from side and force application part 80
Side is opposite), and it is connected to force application part 80, to limit the position offset of force application part 80.
Even having the check-valves 40A of composition as described above, and the protruding portion 71A (weeks by being used as guide portion
Face 71S) come guide main body portion 62, therefore the peripheral surface 65 on head 61 and the peripheral surface 66 of main part 62 do not have coplanar pass
System, compared with the shape of peripheral surface 65, the shape of peripheral surface 66 is smaller.In the present embodiment and, to the head of spool 60
61 assign the function that valve opening 51 is opened and closed and are directed to the imparting of the main part of spool 60 62 (prominent in guide portion
Portion 71A) sliding function, each function is dispersedly set, thus enable that the shape of main part 62 become smaller, can constitute it is small-sized
The spool 60 of change.Accordingly, with respect to spool 60, with the peripheral surface 65 on head 61 and the peripheral surface 66 of main part 62 for example with coplanar
Relationship in the case of spool compare, the spool of light weight and miniaturization can be constituted.
In check-valves 40A, force application part 80 is configured at the outside of main part 62, therefore, is determining the outer of main part 62
It is difficult to the influence by force application part 80 when shape, is easy that main part 62 is made to attenuate compared with embodiment 1.If main part 62 is made to become
Carefully, then further miniaturization, the lightweight etc. of check-valves 40A can be achieved.If main part 62 is made to attenuate, main part 62 with draw
The area for leading the region of portion 71A slidings also becomes smaller.In the case of this case that wanting that spool 60 is inhibited to be easy to become to tilt, use
The composition of check-valves 40 in embodiment 1 is also effective.
(variation of embodiment 2)
Check-valves 40B as shown in figure 14 is such, and the protruding portion 73 as guide portion can also be with the shape of tubular.I.e.
Make to be this composition, can also obtain same effect and effect with embodiment 2, and because protruding portion 73 is tubular,
Further lightweight can be achieved.
[Embodiment 3]
Figure 15 is the sectional view for showing the check-valves 40C in embodiment 3.In the check-valves 40 of above-mentioned embodiment 1
In (with reference to Fig. 4), the guide portion 71 of valve casing 70 and bottom 72 are set to and 50 institute of valve base part relative to spool 60 (head 61)
The opposite side in side.In above-mentioned embodiment 1, a pair of columnar portion 74 is connected to the rake in bottom 72
72B,72C。
The bottom 72 of (referring to Fig.1 5) in the present embodiment, valve casing 70 has flat shape, is set to guide portion
The side opposite with the side where valve base part 50 in 71.A pair of columnar portion 74 is connected to guide portion 71, and via guiding
Portion 71 is connected to bottom 72.Each columnar part in a pair of columnar portion 74 includes rake 74A and flat part 74B.
Rake 74A is connected to the end 77A positioned at 50 side of valve base part in guide portion 71, rake 74A and tablet
Portion 74B extends in the position of the circumferential surface 71S than guide portion 71 position in the outer part, from end 77A towards 50 side of valve base part.One
Valve base part 50 is linked to the respective top end part 74T of columnar part 74 (flat part 74B).
Even have the check-valves 40C of composition as described above, and by the circumferential surface 71S of guide portion 71 (herein for
Inner peripheral surface) come guide main body portion 62, the peripheral surface 65 on head 61 does not have relation of plane altogether with the peripheral surface 66 of main part 62, with
The shape of peripheral surface 65 is compared, and the shape of peripheral surface 66 is smaller.And, the head 61 of spool 60 is assigned in the present embodiment
The function that be opened and closed to valve opening 51 and assign the work(for being directed to slide in guide portion 71 to the main part of spool 60 62
Can, each function is dispersedly set, thus enables that the shape of main part 62 becomes smaller, can constitute the spool 60 of miniaturization.Cause
This, about spool 60, with the peripheral surface 66 of the peripheral surface 65 on head 61 and main part 62 for example with total relation of plane the case where
Under spool compare, the spool of light weight and miniaturization can be constituted.In the sky that the lower end side of columnar part 74 (flat part 74B) is formed
Between can be functioned as relief portion 79.
[Embodiment 4]
Figure 16 is the sectional view for showing the check-valves 40D in embodiment 4.In the check-valves 40 of above-mentioned embodiment 1
In, bottom 72 has base plate 72A and rake 72B, 72C (with reference to Fig. 4), the outside (lower end of columnar part 74 in bottom 72
Side) it is formed with relief portion 79.
On the other hand, in the check-valves 40D of present embodiment (referring to Fig.1 6), bottom 72 has flat shape,
In the outside (the lower end sides 77B of columnar part 74) of bottom 72 position of relief portion 79 is equivalent to without being formed.By this composition,
By guide portion 71 come guide main body portion 62, therefore, the peripheral surface 65 on head 61 does not have coplanar with the peripheral surface 66 of main part 62
Relationship, compared with the shape of peripheral surface 65, the shape of peripheral surface 66 is smaller.Accordingly, with respect to spool 60, the periphery with head 61
Spool in the case that face 65 has relation of plane altogether with the peripheral surface 66 of main part 62 is compared, and light weight and miniaturization can be constituted
Spool.
[Qi Tashishifangshi ]
In above-mentioned each embodiment, valve casing 70 has a pair of columnar portion 74, but valve casing 70 can also have 3 or more
Columnar part 74.3 or more columnar parts 74 for example can be configured equally spaced in the circumferential.
More than, embodiment is illustrated, above-mentioned disclosure is illustrative in all aspects, and simultaneously
It is unrestricted.The present invention technical scope be shown in the claims, it is intended to include the meaning being equal with claims and
Being had altered in range.
Claims (8)
1. a kind of check-valves, has:
Valve base part, the valve base part have cricoid shape and are formed with valve opening in inside;
Spool, the spool have the wide diameter portion that the valve opening is opened and closed by detaching/contacting with the valve base part and
The diameter reducing diameter part smaller than the diameter of the wide diameter portion;
Force application part, the force application part exert a force to the spool to the direction close to the valve base part;And
Valve casing, the valve casing store the spool and the force application part in inside,
In the valve casing, it is integrally formed the guide portion for being set to the side opposite with the valve base part side and incites somebody to action
The guide portion is connected to multiple columnar parts of the valve base part,
The guide portion guides the movement in the opening and closing direction of the spool by being slided in the reducing diameter part,
Multiple columnar parts have scheduled interval at it between the wide diameter portion, and the refrigerant from the valve opening is more
Pass through between the adjacent columnar part in a columnar part.
2. check-valves according to claim 1,
The valve casing has connects the bottom of multiple columnar parts in the side opposite with the valve base part,
The bottom includes base plate and rake, which is set to the outside of the base plate and with far from institute
State base plate and the mode close to the valve base part extends,
Multiple columnar parts are connected to the end of the side opposite with the base plate in the rake.
3. check-valves according to claim 1 or 2,
The guide portion is slided in the peripheral surface of the reducing diameter part,
It is slided in the peripheral surface of the reducing diameter part to guide the movement of the spool by the guide portion.
4. check-valves according to claim 3,
The reducing diameter part has the shape of tubular,
The force application part is configured at the inside of the reducing diameter part.
5. check-valves according to any one of claims 1 to 4,
The valve casing is provided with limiting unit, which is formed as opposite with the force application part from side, is applied described in limitation
The position offset of power component.
6. check-valves according to any one of claims 1 to 5,
Being formed in the respective top end part of multiple columnar parts has towards the 1st protrusion of inside shape outstanding,
The 1st recess portion engaged with the 1st protrusion is formed in the peripheral surface of the valve base part.
7. check-valves according to claim 6,
Inner surface in the 1st protrusion, which is formed with, to be had towards the 2nd protrusion of inside shape outstanding,
It is formed with the second recesses engaged with the 2nd protrusion in the 1st recess portion.
8. a kind of compressor, has:
Check-valves recorded in any one of claim 1~7;With
Shell, the shell inside be formed with for refrigerant by refrigerant passage,
The valve base part is pressed into the inner wall of the refrigerant passage,
The respective top of supply line of multiple columnar parts is between the valve base part and the inner wall of the refrigerant passage.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017070941A JP2018173019A (en) | 2017-03-31 | 2017-03-31 | Check valve and compressor |
| JP2017-070941 | 2017-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108691749A true CN108691749A (en) | 2018-10-23 |
Family
ID=63844780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810286187.4A Withdrawn CN108691749A (en) | 2017-03-31 | 2018-03-30 | Check-valves and compressor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2018173019A (en) |
| CN (1) | CN108691749A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502933A (en) * | 2020-11-06 | 2021-03-16 | 浙江三田汽车空调压缩机有限公司 | Variable displacement SE series compressor and airflow pulse stabilizing valve thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201339727Y (en) * | 2008-12-29 | 2009-11-04 | 上海三电贝洱汽车空调有限公司 | Exhaust check valve |
| CN202326110U (en) * | 2011-11-10 | 2012-07-11 | 何东 | Combined admission valve of air compressor |
| CN104819129A (en) * | 2014-01-30 | 2015-08-05 | 株式会社丰田自动织机 | Check vlave for compressor |
| CN105473854A (en) * | 2013-07-05 | 2016-04-06 | 嘉德纳丹佛有限责任公司 | Starting valve for a fluid operating machine working in a vacuum system |
| JP2016191354A (en) * | 2015-03-31 | 2016-11-10 | カルソニックカンセイ株式会社 | Check valve and gas compressor with check valve |
-
2017
- 2017-03-31 JP JP2017070941A patent/JP2018173019A/en active Pending
-
2018
- 2018-03-30 CN CN201810286187.4A patent/CN108691749A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201339727Y (en) * | 2008-12-29 | 2009-11-04 | 上海三电贝洱汽车空调有限公司 | Exhaust check valve |
| CN202326110U (en) * | 2011-11-10 | 2012-07-11 | 何东 | Combined admission valve of air compressor |
| CN105473854A (en) * | 2013-07-05 | 2016-04-06 | 嘉德纳丹佛有限责任公司 | Starting valve for a fluid operating machine working in a vacuum system |
| CN104819129A (en) * | 2014-01-30 | 2015-08-05 | 株式会社丰田自动织机 | Check vlave for compressor |
| JP2016191354A (en) * | 2015-03-31 | 2016-11-10 | カルソニックカンセイ株式会社 | Check valve and gas compressor with check valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502933A (en) * | 2020-11-06 | 2021-03-16 | 浙江三田汽车空调压缩机有限公司 | Variable displacement SE series compressor and airflow pulse stabilizing valve thereof |
| CN112502933B (en) * | 2020-11-06 | 2022-11-15 | 浙江三田汽车空调压缩机有限公司 | Variable displacement SE series compressor and airflow pulse stabilizing valve thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018173019A (en) | 2018-11-08 |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181023 |
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