CN105464976A

CN105464976A - Compressor

Info

Publication number: CN105464976A
Application number: CN201510633442.4A
Authority: CN
Inventors: 三井翼
Original assignee: Toyoda Automatic Loom Works Ltd
Current assignee: Toyota Industries Corp
Priority date: 2014-09-30
Filing date: 2015-09-29
Publication date: 2016-04-06
Anticipated expiration: 2035-09-29
Also published as: JP6036780B2; CN105464976B; KR101730830B1; JP2016070184A; KR20160038840A

Abstract

Provided is a compressor. The compressor is to be connected with a suction tube. The compressor comprises a cylindrical housing, a partition component, and a check valve. The housing is provided with a peripheral wall. The partition component is arranged in the housing and is cooperated with the inner peripheral wall of the housing, so as to define a suction chamber which can be communicated with an inlet. The check valve prevents refrigerating fluid gas from flowing to the suction tube through the inlet. The housing is provided with a joint part to be connected with the suction tube. The peripheral wall has an inlet, the inlet extends from the joint part and is used to intake the refrigerating fluid gas. The check valve comprises a valve body and a guiding component with a guiding portion. The valve body can move toward and backward the inner peripheral surface of the housing. The guiding portion guides the valve body to move. The guiding component is supported by the partition component. The valve body comprises a facing surface facing the inlet. The facing surface is provided with a sealing portion. The part of the inner peripheral surface of the housing, surrounding the inlet, is provided with a base portion contacting with the sealing portion.

Description

Compressor

Technical field

The present invention relates to a kind of compressor, this compressor has and prevents refrigerant gas from flowing out to the safety check of suction pipe by the entrance of compressor.

Background technique

Japanese Patent Application No.H9-250472 discloses a kind of vane compressor.This vane compressor comprises housing, has cylinder body in the housing.Rotatably be supported with running shaft in the housing and running shaft extends through cylinder body.Rotor is installed on the rotary shaft regularly rotate together with running shaft in cylinder body.Have multiple groove in the rotor, the plurality of groove substantially radially and be opened in the outer circumferential face place of rotor.Slidably receive in each groove and have blade.In cylinder body, multiple pressing chamber is made up of the inner peripheral surface of the outer circumferential face of rotor, cylinder body, side plate and blade.

There is the suction chamber that can be communicated with pressing chamber in the housing.Housing comprises the shell with cylindrical form.Shell has the entrance of the perisporium through shell, and this entrance can be communicated with suction chamber.Safety check is furnished with in entrance.During the squeeze operation of compressor, safety check is opened, and when the check valve is opened, the refrigerant gas flowing through entrance is conducted through suction chamber and enters in pressing chamber.When vane compressor stops squeeze operation, safety check closes.When vane compressor is in halted state, safety check closed prevents refrigerant gas flow through suction chamber and entrance from pressing chamber and flow to the outside (or flowing into vaporizer) of vane compressor.

The shell of housing comprises joining portion, and this joining portion stretches out from entrance and is connected with suction pipe.Be arranged at safety check in the compressor in entrance, in entrance, need the space of guaranteeing for installing safety check.There is provided this space to make joining portion project to the outside of the profile of shell and may increase the length of the protuberance at joining portion, therefore the size of vane compressor becomes larger.

The present invention made in view of the above problems aims to provide a kind of following compressor: this compressor reduces the protuberance in the outside at shell at joining portion thus allows to make compressor miniaturization.

Summary of the invention

According to an aspect of the present invention, provide a kind of compressor, this compressor is to be connected to suction pipe, and this compressor comprises: the shell of tubular, and shell has perisporium; Partition member, partition member is arranged in shell and with the inner peripheral surface of shell and coordinates, to limit the suction chamber that can be communicated with entrance; And safety check, safety check prevents refrigerant gas from flowing to suction pipe by entrance.Shell has the joining portion treating to be connected with suction pipe.Perisporium has entrance, and entrance extends the suction for refrigerant gas from joining portion.Safety check comprises valve body and guiding elements, and valve body can move towards and away from the inner peripheral surface of shell, and guiding elements has the guide portion of the motion of pilot valve body.Guiding elements is supported by partition member.Valve body comprises the opposed face in the face of entrance.Opposed face has sealed department.The part around entrance of the inner peripheral surface of shell forms the seat portion contacted with sealed department.

According to below in conjunction with accompanying drawing the description of principle of the present invention being described in an illustrative manner, other aspects of the present invention and advantage will become obvious.

Accompanying drawing explanation

By referring to below at present description preferred embodiment and accompanying drawing, the present invention and object thereof and advantage can be understood best, in the accompanying drawings:

Fig. 1 is the longitdinal cross-section diagram of vane compressor according to the embodiment of the present invention;

Fig. 2 is the view in transverse section of the vane compressor intercepted along the line 1-1 of Fig. 1;

Fig. 3 is the view in transverse section of the vane compressor intercepted along the line 2-2 of Fig. 1;

Fig. 4 is the stereogram of the safety check of the vane compressor of Fig. 1;

Fig. 5 is safety check and the amplification sectional view around thereof of Fig. 4;

Fig. 6 is the schematic sectional view of the open mode of the safety check showing Fig. 4;

Fig. 7 is according to the safety check of the vane compressor of another embodiment of the present invention and amplification sectional view around thereof;

Fig. 8 is according to the sealing component of the vane compressor of another embodiment of the present invention and amplification sectional view around thereof; And

Fig. 9 is according to the safety check of the vane compressor of another embodiment of the invention and amplification sectional view around thereof.

Embodiment

Hereafter with reference to Fig. 1 to Fig. 6, embodiments of the present invention are described.Vane compressor according to the present invention is suitable for using in Vehicular air-conditioning apparatus.

With reference to Fig. 1, the vane compressor that overall by reference number 10 indicates comprises housing 11.Housing 11 comprises shell and the front case 13 of rear case 12 or tubular.Rear case 12 has perisporium 12A.Front case 13 is connected to the front-end surface (or an end surfaces) of rear case 12.In the present embodiment, front case 13 comprises cylinder block 14.Cylinder body 14 and front case 13 form and cylinder body 14 is arranged in rear case 12.

In rear case 12, be furnished with side plate 15, and the rear end surface of side plate 15 in its front end with cylinder body 14 is combined.Running shaft 16 extends through cylinder body 14 and is rotatably supported by front case 13 and side plate 15.Lip-type seal 17A is plugged with between front case 13 and running shaft 16.Running shaft 16 seals and prevents refrigerant gas from spilling along the outer surface of running shaft 16 by seal arrangement 17A.Cylindrical rotor 18 is fixedly mounted on running shaft 16 and rotates for together with running shaft 16.Rotor 18 is arranged in cylinder body 14, and wherein, the end surfaces of front case 13 faced by the front-end surface of rotor 18, the rear end surface of rotor 18 is in the face of side plate 15.

As shown in Figures 2 and 3, the inner peripheral surface of cylinder body 14 is formed as elliptical shape.In rotor 18, have multiple groove 18A, substantially radially and be opened in the outer circumferential face place of rotor 18, each groove 18A receives blade 19 slidably wherein and supply has lubricant oil for described multiple groove 18A.

In the operation period of vane compressor 10, when running shaft 16 and rotor 18 rotate together and the outer end of blade 19 be directed to contact with the inner peripheral surface of cylinder body 14 time, the outer circumferential face of rotor 18, the inwall of cylinder body 14, blade 19, front case 13 and side plate 15 coordinate to form multiple pressing chamber 21.In vane compressor 10, the pressing chamber 21 that volume is increasing is in its expiratory phase, and the pressing chamber 21 that volume is reducing is in its compression stage.

As shown in fig. 1, rear case 12 has the entrance 22 through its perisporium 12A.Rear case 12 has joining portion 24, and joining portion 24 extends from entrance 22 towards the outside of housing 11.Joining portion 24 is connected to suction pipe 25, and suction pipe 25 extends from the outside of vane compressor (or extending from the vaporizer the refrigerant circuit of outside).

Cylinder body 14 is formed with recess 14A in its outer circumferential face, and this recess 14A extends in the circumferentially whole of cylinder body 14.Recess 14A forms the suction chamber 20 be communicated with entrance 22.Correspondingly, cylinder body 14 is partition member of the present invention, and it coordinates with the inner peripheral surface of rear case 12 and forms suction chamber 20.

As shown in Figure 2, suction chamber 20 to be formed between cylinder body 14 and rear case 12, to extend along the circumferential direction of running shaft 16.The part of the opening around entrance 22 of the inner peripheral surface of the perisporium 12A of rear case 12 is bending or is formed as the arcuate surface identical with the remainder of the inner peripheral surface of perisporium 12A.Suction chamber 20 and entrance 22 be arranged in running shaft 16 in the radial direction with pressing chamber 21 in stacked relation.In cylinder body 14, be formed with a pair suction port 23, and this can be communicated with suction chamber 20 to suction port 23.In sucting stage, suction chamber 20 is communicated with pressing chamber 21 by suction port 23.

As shown in Figure 3, cylinder body 14 has a pair recess 14B in its outer circumferential face, and this is positioned at the position of the both sides of cylinder body 14 relative to running shaft 16 to recess 14B.Each recess 14B is formed with surperficial 141B and valve mounting surface 142B, and wherein, surperficial 141B radially extends internally from the outer circumferential face of cylinder body 14, and valve mounting surface 142B extends to the outer circumferential face of cylinder body 14 from surperficial 141B.The surperficial 141B of recess 14B and the inner peripheral surface of valve mounting surface 142B and rear case 12 limit a pair drain chamber 30.That is, each drain chamber 30 is formed between cylinder body 14 and rear case 12 along the radial direction of running shaft 16.

There is floss hole 31 in cylinder body 14, in each comfortable valve mounting surface 142B of floss hole 31, there is opening.Drain chamber 30 can be communicated with pressing chamber 21 by floss hole 31 in compression stage.Each floss hole 31 is opened and closed by the escape cock 32 being mounted to valve mounting surface 142B.Promoted open escape cock 32 and be exhausted in drain chamber 30 by floss hole 31 by the refrigerant gas compressed in pressing chamber 21.

As shown in Figure 1, rear case 12 has the outlet 34 through its perisporium 12A.Rear case 12 has joining portion 38, and this joining portion 38 extends to the outside of housing 11 from outlet 34.Joining portion 38 is connected to discharge pipe 39, and this discharge pipe 39 extends to the outside (or the condenser extended in outside refrigerant circuit) of vane compressor.

Discharge pressure region 35 to be formed in rear case 12 and to be positioned at the rear of side plate 15.In discharge pressure region 35, be furnished with oil separator 36 be separated with refrigerant gas for by lubricant oil.Oil separator 36 comprises the cylinder outer race 36A at the band end, and this shell 36A has opening at upside place.In shell 36A and the opening of shell 36A be fixed with tubular oil splitter cylinder 36B.Shell 36A has oily passage 36C in its underpart, and the inside of shell 36A and the bottom in discharge pressure region 35 are communicated with each other by oily passage 36C.Side plate 15 and shell 36A have the communicating passage 37 through both, and the fluid that this communicating passage 37 provides between drain chamber 30 and the inside of shell 36A is communicated with.In side plate 15, be formed with oil supply gallery 15D guide towards groove 18A with the lubricant oil that will be stored in the bottom in discharge pressure region 35.Safety check 40 is furnished with in suction chamber 20.

With reference to Fig. 4 and Fig. 5, safety check 40 comprises: valve body 41, and valve body 41 can move towards and away from the inner peripheral surface of rear case 12; Spring 42, this spring 42 is towards the inner peripheral surface pushing valve body 41 of rear case 12; And guiding elements 43, the inner peripheral surface towards rear case 12 of this guiding elements 43 pilot valve body 41 and leave the motion of inner peripheral surface of rear case 12.Spring 42 corresponds to biasing member of the present invention.Valve body 41 and guiding elements 43 are formed from a resin.

Valve body 41 has the shape as the long shaped plate observed in plan view.Valve body 41 has the opposed face 41A in the face of entrance 22.Opposed face 41A extends along the arcuate surface of rear case 12.Sealed department 41S is formed as giving prominence to and whole periphery along opposed face 41A extends from opposed face 41A.The curved surface of sealed department 41S is formed.In the present embodiment, sealed department 41S and valve body 41 form.Sealed department 41S extends along the inner peripheral surface of rear case 12.Seat portion 12E is used as around the part of entrance 22 or region in the inner peripheral surface of rear case 12.Sealed department 41S can contact with seat portion 12E.

Valve body 41 has cylindrical part 41C, and this cylindrical part 41C inwardly gives prominence to linearly from the interior surface 41B contrary with opposed face 41A of valve body 41.Cylindrical part 41C is formed in the central part office in the circumferential direction of rear case 12 of interior surface 41B.Valve body 41 has pair of engaging plate 41D, and described pair of engaging plate 41D is from the two end part of valve body 41 linearly to downward-extension, and these two end part of valve body 41 are the minor face of microscler tabular valve body 41.The end of each joint plate 41D is formed as the shape of hook, and this hook extends to the outside being positioned at the edge at the minor face place of valve body 41 of valve body 41.

Guiding elements 43 comprises the base portion 43A of the long shaped plate shape had as observed in a top view.Base portion 43A has the end surfaces 43B in the face of valve body 41.Guiding elements 43 also comprises tubular guide portion 44, and this tubular guide portion 44 is arranged in the central part office of base portion 43A and upwards extends linearly from base portion 43A towards the interior surface 41B of valve body 41.The top of tubular guide portion 44 is inserted in the cylindrical part 41C of valve body 41.That is, tubular guide portion 44 is arranged in the central part office in the circumferential direction of rear case 12 of valve body 41.

The cylindrical part 41C of valve body 41 is directed along the outer circumferential face of tubular guide portion 44.Therefore, valve body 41 moves while being guided with the inner peripheral surface leaving rear case 12 by the inner peripheral surface towards rear case 12.

The two-end part at its minor face place of microscler plate-like base 43A is in the outside at the two end part at its minor face place of valve body 41.Base portion 43A has a pair buckle portion (catch) 43D, and described a pair buckle portion 43D upwards extends from the two end part of the end surfaces 43B of base portion 43A in the mode that the end surfaces 43B with base portion 43A is vertical.The end of buckle portion 43D is formed as the shape in hook, and this hook is inwardly outstanding with the hook joint of the joint plate 41D with valve body 41 in a longitudinal direction.Hook and the joint of the hook of buckle portion 43D of joint plate 41D prevent from valve body 41 from disconnecting with guiding elements 43 engaging.That is, joint plate 41D corresponds to " disconnecting with guiding elements the mechanism engaged for preventing valve body " of the present invention with buckle portion 43D.

Two springs 42 are arranged between valve body 41 and guiding elements 43, and cylindrical part 41C and guide portion 44 are inserted between spring 42 simultaneously.That is, spring 42 is arranged in the both sides of the middle body in the circumferential direction of rear case 12 of valve body 41.

Recess 14C is formed to receive the base portion 43A of guiding elements 43 in recess 14C in the outer circumferential face of cylinder body 14.Joint in recess 14C of the base portion 43A of guiding elements 43 or the equipped guiding elements 43 that allows are supported by cylinder body 14 and are correctly positioned in suction chamber 20.

Be assembled in the process in suction chamber 20 by safety check 40, the base portion 43A of guiding elements 43 is arranged in recess 14C, and along with valve body 41 is pressed towards guiding elements 43 by the pushing force of opposing spring 42, cylinder body 14 is installed in rear case 12.Therefore, along with cylinder body 14 is installed in rear case 12, the pushing force push valve body 41 of spring 42 is against the inner peripheral surface of rear case 12, and safety check 40 is arranged in the suction chamber 20 between rear case 12 and cylinder body 14.

Hereafter by the operation of description vane compressor 10 according to the present embodiment.With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 6, in the operation period of vane compressor 10, when---having blade 19 in rotor 18---when rotor 18 and be driven in rotation under the effect of running shaft 16, refrigerant gas is inhaled into entrance 22 from vaporizer (not shown) by suction pipe 25.Subsequently, the suction pressure of refrigerant gas acts on the opposed face 41A of valve body 41, and correspondingly, valve body 41 is resisted the pushing force of spring 42 and moved away the inner peripheral surface of rear case 12, and safety check 40 opens and refrigerant gas is flowed in suction chamber 20 by entrance 22.The refrigerant gas sucked in suction chamber 20 is flowed in pressing chamber 21 by suction port 23 in expiratory phase.Refrigerant gas in each pressing chamber 21 is reduced by the volume of pressing chamber 21 and is compressed in compression stage, and the refrigerant gas compressed is disposed in drain chamber 30 by floss hole 31.

The refrigerant gas compressed in drain chamber 30 flows in shell 36A by communicating passage 37, and in shell 36A, refrigerant gas is clashing into the outer circumferential face of oily splitter cylinder 36B and bottom towards shell 36A is directed while oily splitter cylinder 36B vortex.Subsequently, contained in refrigerant gas lubricant oil is separated with refrigerant gas by centrifugation.Thus the lubricating oil flow be separated with refrigerant gas to shell 36A bottom and flowed to the bottom in discharge pressure region 35 subsequently by oily passage 36C, to be stored in the bottom in discharge pressure region 35.The part being stored in the lubricant oil in the bottom in discharge pressure region 35 is conducted through oil supply gallery 15D and is directed to groove 18A, thus as back pressure direction pushing blade 19 radially.Pressing chamber 21 is limited by any two adjacent blades 19, and these any two adjacent blades 19 are pressed against the inner peripheral surface of cylinder body 14 under the effect of back pressure.The slidingsurface of lubricant oil to groove 18A and blade 19 guiding to groove 18A lubricates.Upwards flow in oily splitter cylinder 36B with the refrigerant gas of lubricating oil separation and be disposed to condenser (not shown) by outlet 34 and discharge pipe 39.

On the other hand, when the rotation of running shaft 16 stops, the squeeze operation of vane compressor 10 stops.Therefore, valve body 41 moves into and contacts with the inner peripheral surface of rear case 12 while being guided by guide portion 44 under the pushing force effect of spring 42, as shown in Figure 5.Meanwhile, sealed department 41S is directed to and contacts with seat portion 12E.There is the inner peripheral surface setting also with arcuate surface of sealed department 41S along rear case 12 of the arcuate surface as observed in the lateral cross section of compressor 10.Therefore, safety check 40 is placed in its operating position, therefore, while compressor 10 stops, preventing refrigerant gas from being flowed out to suction pipe 25 from pressing chamber 21 by suction chamber 20 and entrance 22.

Above-mentioned mode of execution of the present invention provides following favourable effect.

(1) safety check 40 comprises valve body 41, valve body 41 can towards and deviate from rear case 12 inner peripheral surface motion.The sealed department 41S of valve body 41 is formed as that the inner peripheral surface along rear case 12 is extended into and contacts with seat portion 12E, and this 12E is formed around the entrance 22 in the inner peripheral surface of rear case 12.This structure allows safety check 40 to be arranged in inner side in rear case 12 instead of entrance 22, in entrance 22, therefore there is no need for the space of safety check 40.Therefore, the protuberance that the profile from rear case 12 at joining portion 24 is outstanding can reduce and therefore, can reduce the size of vane compressor 10.

(2) the sealed department 41S being formed as the arcuate shape as observed in the lateral cross section of compressor is formed along the arcuate surface of the inner peripheral surface of rear case 12, and arranges along the inner peripheral surface of rear case 12.Therefore, compared with being formed as the structure of plane with wherein sealed department such as 41S, sealed department 41S can contact more nearly with the region around entrance 22 of the inner peripheral surface of rear case 12.Because the part contacted with sealed department 41S of the inner peripheral surface of rear case 12 does not need to be formed as plane, so be conducive to the processing to rear case 12, ensure that the required sealability of the sealed department 41S of safety check 40 simultaneously.

(3) sealed department 41S is formed as extending from the whole periphery of opposed face 41A outwardly and along the opposed face 41A of valve body 41.Any irregularity formed because of processing such as from the edge of entrance 22 towards the outstanding burr of valve body 41 by sealed department 41S around, sealing portion 41S contacts with the inner peripheral surface around entrance 22 of rear case 12, makes the sealability of sealed department 41S by the impact not by this irregularity.

(4) guide portion 44 is arranged in the central part office in the circumferential direction of rear case 12 of valve body 41, can lengthen the guiding distance that valve body 41 is guided by guide portion 44 compared with the structure that this and guide portion 44 are arranged in the position of departing from the middle body in the circumferential direction of rear case 12 of valve body 41.Therefore, valve body 41 firmly can be moved and be improved the operation of safety check 40.

(5) two springs 42 are arranged in the both sides of the middle body in the circumferential direction of rear case 12 of valve body 41, for pushing valve body 41.With wherein only a spring such as 42 be arranged in compared with the structure of the side of the middle body of valve body 41, the valve body 41 pushed by two springs 42 can not be pushed inner peripheral surface against rear case 12 with the position tilted.

(6) the joint plate 41D of the valve body 41 and buckle portion 43D of guiding elements 43 corresponds to the mechanism of the separated joint for preventing valve body 41 and guiding elements 43.According to this structure, by being assembled to the safety check 40 of cylinder body 14, preventing valve body 41 and guiding elements 43 to disconnect by joint plate 41D with the joint of buckle portion 43D and engaging, make it possible to the installation being conducive to safety check 40.

(7) there is following situation: for installing the limited space of vane compressor in the engine compartment of vehicle, and the bearing of trend at joining portion 24 is limited.But safety check 40 according to the present embodiment, entrance 22 can be positioned at any position according to the direction of the expectation at joining portion 24, as long as entrance 22 is in the region that the inner peripheral surface along rear case 12 of the opposed face 41A of valve body 41 extends.Therefore, the design freedom for the formation of joining portion 24 can be increased.

(8) along the inner peripheral surface of rear case 12, the opposed face 41A of valve body 41 is bending or is formed as the shape as the arcuate surface observed in the lateral cross section of compressor 10.This structure contribute to when safety check 40 is opened refrigerant gas stream circumferentially the bending opposed face 41A of direction from entrance 22 along valve body 41 flow to suction chamber 20, thus contribute to the suction efficiency increasing compressor 10.

(9) because safety check 40 is arranged in existing suction chamber 20, do not need the space added, and can prevent the size of vane compressor 10 from becoming larger.

(10) refrigerant gas of flowing from joining portion 24 can the opposed face 41A of impact valve body 41 on the bias.Because the sealed department 41S with arcuate surface arranges along the inner peripheral surface with complementary arcuate surface of rear case 12, it is larger that out-of-alignment admissible scope between sealed department 41S and rear case 12 can be arranged, and this allows the stable operation of valve body 41.

The present invention can put into practice within the scope of the invention in the various modes of such as Examples below.As shown in Figure 7, single spring 42 can be arranged in the inner side of guide portion 44.Particularly, spring 42 can be arranged in the central part office in the circumferential direction of rear case 12 of valve body 41.Be arranged in compared with the structure of the end of valve body 41 with its medi-spring 42 along the circumferential direction of rear case 12, it is less that this structure allows valve body 41 to manufacture in the circumferential direction of rear case 12.Therefore, what the size of safety check 40 also can manufacture is less.

As shown in Figure 8, sealed department 41S and valve body 41 can be formed independently.In addition, sealed department 41S can be made up of elastic material such as rubber.Compared with the sealed department 41S be formed from a resin, this elastomeric seal portions 41S can improve sealability.Compare with the structure that valve body 41 forms with sealed department 41S, the structure that sealed department 41S and valve body 41 are formed independently allows more easily to make valve body 41.

As shown in Figure 9, guiding elements 43 can be formed with the contacting part 43E that can contact with the inner peripheral surface of rear case 12.In the structure shown in Fig. 9, contacting part 43E is formed as microscler and has linear plate shape and be formed in the upper end of buckle portion 43D.The top of contacting part 43E can contact with the inner peripheral surface of rear case 12.This structure allows guiding elements 43 to be positioned at securely between the inner peripheral surface of rear case 12 and cylinder body 14.

According to the present invention, the radius of curvature of the arcuate surface of sealed department 41S can be substantially the same or different from the radius of curvature of the inner peripheral surface of rear case 12.Sealed department 41S can be formed as plane.In this case, the part contacted with sealed department 41S of the inner peripheral surface of rear case 12 preferably can be processed as plane.

According to the present invention, opposed face 41A can be formed as plane.Guide portion 44 can be arranged in the position of departing from the middle body in the circumferential direction of rear case 12 of valve body 41.

According to the present invention, sealed department 41S does not need to be formed as giving prominence to from opposed face 41A.Such as, opposed face 41A can be arranged to be used as sealed department such as 41S.Joint plate 41D and buckle portion 43D can be saved.

According to the present invention, suction chamber 20 and entrance 22 can be arranged to compressor 10 running shaft 16 in the radial direction with pressing chamber 21 in stacked relation.Such as, suction chamber 20 and entrance 22 can be formed in the position be positioned at before cylinder body 14.The suction chamber 20 be communicated with entrance 22 can be limited by the internal surface of the internal surface of front case 13 and rear case 12.In this case, front case 13 corresponds to partition member, and this partition member coordinates to limit suction chamber 20 with the inner peripheral surface of rear case 12.

According to the present invention, cylinder body 14 and front case 13 can be formed independently.Vane compressor 10 may be used for any other aircondition except Vehicular air-conditioning apparatus.

According to the present invention, compressor can be any other type except vane type, such as scroll type, slant plate type or Roots type compressor.

Claims

1. a compressor (10), described compressor (10) is to be connected to suction pipe (25), and described compressor (10) comprising:

The shell (12) of tubular, described shell (12) has perisporium (12A), described shell (12) has the joining portion (24) treating to be connected with described suction pipe (25), described perisporium (12A) has entrance (22), and described entrance (22) to extend and for the suction of refrigerant gas from described joining portion (24);

Partition member (14), described partition member (14) to be arranged in described shell (12) and to coordinate to limit the suction chamber that can be communicated with described entrance (22) with the inner peripheral surface of described shell (12); And

Safety check (40), described safety check (40) prevents refrigerant gas from flowing to described suction pipe (25) by described entrance (22),

It is characterized in that,

Described safety check (40) comprises valve body (41) and guiding elements (43), described valve body (41) can towards and away from the described inner peripheral surface motion of described shell (12), described guiding elements (43) has the guide portion (44) of the motion guiding described valve body (41), wherein, described guiding elements (43) is supported by described partition member (14), wherein, described valve body (41) comprises the opposed face (41A) in the face of described entrance (22), wherein, described opposed face (41A) has sealed department (41S), and wherein, the part around described entrance (22) of the inner peripheral surface of described shell (12) forms the seat portion (12E) contacted with described sealed department (41S).

2. compressor according to claim 1 (10), wherein, the curved surface of described inner peripheral surface of described shell (12) is formed and the curved surface of described sealed department (41S) is formed.

3. compressor according to claim 1 and 2 (10), wherein, described sealed department (41S) is formed as giving prominence to from described opposed face (41A) on the whole periphery of described opposed face (41A).

4. compressor according to claim 2 (10), wherein, the curved surface of described opposed face (41A) is formed, and wherein, described guide portion (44) is arranged in the central part office in the circumferential direction of described shell (12) of described valve body (41).

5. the compressor (10) according to claim 2 or 4, wherein, described safety check (40) comprises biasing member (42), described biasing member (42) pushes described valve body (41) towards the described inner peripheral surface of described shell (12), and wherein, described biasing member (42) is arranged in the central part office in the circumferential direction of described shell (12) of described valve body (41).

6. the compressor (10) according to claim 2 or 4, wherein, described safety check (40) comprises a pair biasing member (42), described a pair biasing member (42) pushes described valve body (41) towards the described inner peripheral surface of described shell (12), and wherein, described biasing member (42) is arranged on the both sides of the middle body in the circumferential direction of described shell (12) of described valve body (41).

7. the compressor (10) according to any one in claim 1,2 and 4, wherein, described guiding elements (43) and described valve body (41) have for preventing described valve body (41) from disconnecting with described guiding elements (43) mechanism engaged.

8. the compressor (10) according to any one in claim 1,2 and 4, wherein, described guiding elements (43) is formed with contacting part (43E), and described contacting part (43E) can contact with the described inner peripheral surface of described shell (12).

9. the compressor (10) according to any one in claim 1,2 and 4, wherein, described sealed department (41S) is made up of elastic material.

10. compressor according to claim 9 (10), wherein, described sealed department (41S) and described valve body (41) are separately formed.