DE102018216169A1 - compressor - Google Patents

Abstract

In a compressor (100), a seal (130) includes a plurality of slots (130a, 130b, 130c, 130d) arranged at intervals to extend along a peripheral edge of the seal (130) and a plurality of interval portions (130m, 130n, 130p) disposed between the slots (130a, 130b, 130c, 130d). A first housing member (162) has an end surface (162t) facing the seal (130), and a plurality of grooves (162a, 162b, 162c) are formed in the end surface (162t) at positions corresponding to the interval portions (162). 130m, 130n, 130p), so that each groove (162a, 162b, 162c) faces its corresponding interval part (130m, 130n, 130p). In a state in which the first housing member (162) and a second housing member (120) are connected to each other with the seal (130) interposed therebetween, the plurality of slots (130a, 130b, 130c, 130d) communicate with each other via the grooves (162a, 162b, 162c) to thereby form part of an oil passage (61) through which lubricating oil in the oil reservoir (41) flows to a refrigerant compressor (160) and the slots (130a, 130b, 130c, 130d ) form throttles of the oil passage (61).

Description

STATE OF THE ART

The present disclosure relates to a compressor.

A compressor is disclosed which uses a seal in which oil passages are formed, for example in the publication of Japanese Patent Application No. 2006 - 57459 , According to the publication, the seal of the compressor has a plate-like part in the middle thereof, and holes are formed in the middle part as oil passages. In some compressors, a gasket has a larger area in its central part and a chamber having a pressure level of a suction pressure area, and an ejection pressure area or an intermediate pressure area is formed in the opening. When a series of oil passages are formed around the opening of such a gasket, it is difficult to form throttle passages that function stably while maintaining the rigidity of the gasket.

In the light of the circumstances described above, the present disclosure is directed to providing a compressor having a seal having a throttle passage which functions stably and which can withstand when an opening in the central part of the seal is used as a chamber for the compressor becomes.

SUMMARY

According to one aspect of the present disclosure, there is provided a compressor including a housing assembly, a seal, a refrigerant compressor, and an oil reservoir member. The housing assembly includes a plurality of housing members including a first housing member and a second housing member. The housing assembly is formed by connecting the housing members together. The seal is arranged between the first housing element and the second housing element. The refrigerant compressor is disposed in the housing assembly and configured to compress refrigerant received from the outside. The oil reservoir part is disposed in the housing assembly and lubricating oil separated from ejected coolant is accumulated in the oil reservoir part. In the compressor, the gasket includes a plurality of slots arranged at intervals so as to extend along a peripheral edge of the gasket and a plurality of interval portions disposed between the slots. The first housing member has an end surface facing the gasket, and a plurality of grooves are formed in the end surface at positions corresponding to the interval parts, so that each groove faces its corresponding interval part. In a state in which the first housing member and the second housing member are connected to each other with the gasket interposed therebetween, the plurality of slots communicate with each other via the grooves to thereby form an oil passage through which lubricating oil in the oil reservoir portion to the oil reservoir Coolant compressor flows and the slots form throttles of the oil passage.

Other aspects and advantages of the disclosure will become apparent from the following description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the disclosure.

list of figures

• 1 eine longitudinale Querschnittsansicht ist, welche eine Konfiguration einer eines Verdichters gemäß einer ersten Ausführungsform der vorliegenden Offenbarung darstellt;
• 2 eine Querschnittsansicht des Verdichters der ersten Ausführungsform ist, entlang Linie II-II und in Richtung der Pfeile in 1 betrachtet;
• 3 eine Querschnittsansicht ist, entlang der Linie III-III und in Richtung der Pfeile in 2 betrachtet;
• 4 eine longitudinale Querschnittsansicht ist, welche eine Konfiguration eines Verdichters gemäß einer zweiten Ausführungsform der vorliegenden Offenbarung darstellt;
• 5 eine Querschnittsansicht des Verdichters der zweiten Ausführungsform ist, entlang der Linie V-V und in Richtung der Pfeile in 4 betrachtet;
• 6 eine Querschnittsansicht ist, entlang der Linie VI-VI und in Richtung der Pfeile in 5 betrachtet;
• 7 eine longitudinale Querschnittsansicht ist, welche eine Konfiguration eines Verdichters gemäß einer dritten Ausführungsform der vorliegenden Offenbarung darstellt;
• 8 eine Querschnittsansicht des Kompressors der dritten Ausführungsform ist, entlang der Linie VIII-VIII und in Richtung der Pfeile in 7 betrachtet;
• 9 eine Querschnittsansicht ist, entlang der Linie IX-IX und in Richtung der Pfeile in 8 betrachtet;
• 10 eine longitudinale Querschnittsansicht ist, welche eine Konfiguration eines Verdichters gemäß einer vierten Ausführungsform der vorliegenden Offenbarung darstellt;
• 11 eine Querschnittsansicht des Verdichters der vierten Ausführungsform ist, entlang der Linie XI-XI und in Richtung der Pfeile in 10 betrachtet;
• 12 eine Querschnittsansicht ist, entlang der Linie XII-XII und in Richtung der Pfeile in 11 betrachtet;
• 13 eine longitudinale Querschnittsansicht ist, welche eine Konfiguration eines Verdichters gemäß einer fünften Ausführungsform der vorliegenden Offenbarung darstellt;
• 14 eine Querschnittsansicht des Kompressors der fünften Ausführungsform ist, entlang der Linie XIV-XIV und in Richtung der Pfeile in 13 betrachtet; und
• 15 eine Querschnittsansicht ist, entlang der Linie XV-XV und in Richtung der Pfeile in 14 betrachtet.

The disclosure, together with its objects and advantages, may best be understood by referring to the following description of the embodiments, together with the accompanying drawings, in which:

• 1 is a longitudinal cross-sectional view illustrating a configuration of a compressor according to a first embodiment of the present disclosure;
• 2 is a cross-sectional view of the compressor of the first embodiment, along line II-II and in the direction of the arrows in 1 considered;
• 3 a cross-sectional view is taken along the line III-III and in the direction of the arrows in 2 considered;
• 4 is a longitudinal cross-sectional view illustrating a configuration of a compressor according to a second embodiment of the present disclosure;
• 5 is a cross-sectional view of the compressor of the second embodiment, taken along the line VV and in the direction of the arrows in 4 considered;
• 6 a cross-sectional view is taken along the line VI-VI and in the direction of the arrows in 5 considered;
• 7 is a longitudinal cross-sectional view illustrating a configuration of a compressor according to a third embodiment of the present disclosure;
• 8th is a cross-sectional view of the compressor of the third embodiment, along the line VIII-VIII and in the direction of the arrows in 7 considered;
• 9 a cross-sectional view is taken along the line IX-IX and in the direction of the arrows in 8th considered;
• 10 is a longitudinal cross-sectional view illustrating a configuration of a compressor according to a fourth embodiment of the present disclosure;
• 11 is a cross-sectional view of the compressor of the fourth embodiment, along the line XI-XI and in the direction of the arrows in 10 considered;
• 12 a cross-sectional view is taken along the line XII-XII and in the direction of the arrows in 11 considered;
• 13 is a longitudinal cross-sectional view illustrating a configuration of a compressor according to a fifth embodiment of the present disclosure;
• 14 is a cross-sectional view of the compressor of the fifth embodiment, along the line XIV-XIV and in the direction of the arrows in 13 considered; and
• 15 a cross-sectional view is taken along the line XV-XV and in the direction of the arrows in 14 considered.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Hereinafter, a compressor according to each embodiment of the present disclosure will be described with reference to the accompanying drawings. It is noted that in the following description, like reference characters denote identical or corresponding parts throughout the drawings, and the detailed description thereof will not be repeated. Although the embodiments of the present disclosure describe a scroll compressor or a blade compressor, the type of compressor is not so limited and the compressor may be any other type, such as a compressor. a swash plate compressor.

First embodiment

1 FIG. 15 is a longitudinal cross-sectional view illustrating a configuration of a compressor according to a first embodiment of the present disclosure. FIG. 2 FIG. 12 is a cross-sectional view of the compressor of the first embodiment taken along line. FIG II-II and, in the direction of the arrows in 1 considered. 3 is a cross-sectional view along the line III-III and in the direction of the arrows in 2 considered.

As in 1 to 3 1, the compressor of the first embodiment of the present disclosure, designated as 100, is an electric scroll compressor. The compressor 100 includes a plurality of housing elements. According to the first embodiment, the plurality of housing members include a motor housing 110 a backside housing element 120 , a stationary block 140 , a mobile snail 161 and an immobile snail 162 , A seal 130 is between the motor housing 110 and the rear side housing member 120 arranged. In particular, a radial outer part of the seal between the motor housing 110 and the rear side housing member 120 arranged and a radial inner part of the seal 130 is between the back case member 120 and the immovable snail 162 arranged.

The above case members are assembled or connected together to thereby form a case assembly 100h of the compressor 100 to build. The housing arrangement 100h has a refrigerant compressor 160 which is arranged to compress refrigerant, which is taken from the outside.

The following is the configuration of the compressor 100 described in detail. The backside housing element 120 is with a rear end of the motor housing 110 with bolts 190 connected. The motor housing 110 and the back housing element 120 are each formed of an aluminum alloy and have a lower cylindrical shape. The motor housing 110 has an inlet channel 111 on which is in communication with the outside of the compressor 100 is. Part of the motor housing 110 which is in communication with the inlet duct 111 is, is as a suction chamber 10 defines which is a suction pressure range. An electric motor 170 is in the motor housing 110 arranged. A variety of insertion holes 128 for inserting bolts is in an outer peripheral part of the rear side housing member 120 educated.

As in 1 are shown the refrigerant compressor 160 and the electric motor 170 in an axial direction of the rotary shaft 150 arranged. The electric engine 170 includes a stator 171 and a rotor 172 , The rotor 172 is at the rotation shaft 150 attached. The rotation shaft 150 is on the bottom wall of the motor housing 110 and the immovable block 140 axially supported. An eccentric pin 150p is at one end of the rotation shaft 150 which is in the immovable block 140 is arranged, fastened. The eccentric pin 150p is in engagement with a socket 151 and the socket 151 is engaged with an inner peripheral part of a bearing 152 , which is connected to the mobile screw 161 is attached.

The refrigerant compressor 160 includes the movable snail 161 , the immobile snail 162 , the rotation shaft 150 , the eccentric pin 150p , the socket 151 and the camp 152 , A compactor chamber 20 is between the moving screw 161 and the immovable snail 162 Are defined.

In the interior of the housing assembly 100h is a back pressure chamber 50 which is operable to the movable screw 161 towards the immovable snail 162 to press, formed on one side of the mobile screw 161 coming from the immovable snail 162 is removed. The back pressure chamber 50 is through the immovable block 140 and the mobile snail 161 Are defined. Pressure in the back pressure chamber 50 , which serves as a counterpressure on the movable screw 161 is determined by a difference between a flow rate of a refrigerant gas discharged from the compression chamber 20 to the back pressure chamber 50 leaks and a flow rate of the refrigerant gas flowing from the back pressure chamber 50 is ejected through a passage (not shown). The mobile snail 161 is with the socket 151 connected.

A spring plate 240 is between the immovable snail 162 and the immovable block 140 arranged. The spring plate 240 is a thin metal sheet which has an annular shape and functions around the movable screw 161 in the direction of the immovable snail 162 to urge.

As in 1 shown is an ejection chamber 30 between the rear side housing element 120 and the immovable snail 162 Are defined. The ejection chamber 30 and the compression chamber 20 are in communication with each other via an ejection channel 162h which is in the immovable snail 162 is formed. The discharge channel 162h is through a valve unit 31 opened and closed. The backside housing element 120 has an ejection channel 124 on which to the outside of the compressor 100 is open. The discharge channel 124 is in communication with a coolant circuit (not shown) which is external to the compressor 100 connected is.

The backside housing element 120 has an oil separation chamber in it 40 on which in communication with the ejection chamber 30 is and in which an oil separation cylinder 180 is arranged. Coolant gas, which in the refrigerant compressor 160 is compressed from the ejection chamber 30 ejected into the oil separation chamber 40 , In the oil separation chamber 40 becomes lubricant oil from the refrigerant gas discharged from the ejection chamber 30 was ejected, separated. The ejection chamber 30 and the oil separation chamber 40 are through a separator 125 separated, which is a communication hole 162 which is formed therethrough. The refrigerant gas coming from the ejection chamber 30 was ejected flows into the oil separation chamber 40 through the communication hole 126 ,

In the oil separation chamber 40 whirls coolant gas around an outer peripheral surface of the oil separation cylinder 180 so that lubricating oil is centrifugally separated from the refrigerant gas. The refrigerant gas of which lubricating oil in the oil separation chamber 40 was separated flows through the oil separator cylinder 180 and goes out through the chute 124 ejected.

Lubricating oil, which from the refrigerant gas in the oil separation chamber 40 is separated, is in a first oil reservoir part 41 , which under the oil separation chamber 40 is arranged in the vertical direction, accumulated. The backside housing element 120 has a communication passage 127 on what communication between the first oil reservoir part 41 and an inlet opening 130ae the seal 130 provides. Details of the seal 130 will be described later.

A second oil reservoir part 42 is radially outward from the ejection chamber 30 educated. The second oil reservoir part 42 communicates with the first oil reservoir part 41 over an oil passage 61 and communicates with the suction chamber 10 via an oil return passage 164 , Details of the oil passage 61 will be described later. The second oil reservoir part 42 is a suction pressure range.

As in 1 and 2 the seal is shown 130 arranged in such a manner around the outer periphery of the ejection chamber 30 to surround. The seal 130 is a sealing member formed by a thin metal sheet and includes a rubber member covering the surface of the metal sheet. The seal 130 is an endface 162T the immovable snail 162 which the rear side housing element 120 facing, facing. As previously described, the seal is 130 between the rear side housing element 120 and the immovable snail 162 arranged. The seal 130 has an opening in the middle part thereof and the ejection chamber 30 is arranged in the opening. The space in the opening of the seal 130 is an ejection pressure range of the compressor 100 ,

As in 2 shown has the seal 130 a plurality of slots arranged at intervals to extend along a peripheral edge of the gasket 130 to extend and a plurality of interval parts, which are arranged between the slots. In the first Embodiment includes the plurality of slots of the seal 130 a first slot 130a , a second slot 130b , a third slot 130c and a fourth slot 130d , One end of the first slot 130a is substantially expanded in a circular shape to an inlet opening 130ae to build. An end of the fourth slot 130d is substantially expanded in a circular shape to an outlet opening 130DE to build. Lubricating oil flows through a gap, which is determined by the thickness of the seal 130 was generated and then flows into the second oil reservoir part 42 through the outlet opening 130DE ,

The variety of interval parts of the seal 130 includes a first interval part 130m between the first slot 130a and the second slot 130b , a second interval part 130n between the second slot 130b and the third slot 130c and a third interval part 130p between the third slot 130c and the fourth slot 130d , The interval parts herein refer to solid parts of the gasket 130 which are arranged between the slots.

As in 2 and 3 shown, grooves are in the end face 162T the immovable snail 162 formed at positions corresponding to the interval parts. According to the first embodiment, in the end surface 162T the immovable snail 162 a first groove 162a , a second groove 162b and a third groove 162c formed to coincide with the first interval part 130m , the second interval part 130n and the third interval part 130p corresponding to correspond. It is noted that each groove has a length which is greater than that of its corresponding interval part, so that the groove faces two adjacent slots between which the corresponding interval part is arranged.

As previously described, the backside housing member 120 and the immovable snail 162 interconnected with the interposed seal 130 , In this state, the first slot communicate 130a , the second slot 130b , the third slot 130c and the fourth slot 130d with each other via the first groove 162a , the second groove 162b and the third groove 162c to thereby the oil passage 61 to form, by which lubricating oil L1 in the first oil reservoir part 41 flows. The oil passage 61 provides communication between the first oil reservoir part 41 and the second oil reservoir part 42 ready, which in communication with the suction chamber 10 is. Each groove has a cross-sectional area larger than those of the slots facing the groove. Therefore, the first to fourth slots function 130a . 130b . 130c and 130d as throttling the oil passage 61 , The oil passage 61 extends along substantially one half of the circumference of the seal 130 ,

In the first embodiment, although the grooves are in the end surface 162T the immovable snail 162 are formed, the arrangement of the grooves not on the end face 162T limited. The grooves may be in an end surface of the rear side housing member 120 be formed, which of the end surface 162T the immovable snail 162 with the gasket in between 130 is facing. Alternatively, the grooves may be in both the end surface of the rear side housing member 120 as well as in the end face 162T the immovable snail 162 be educated.

In the compressor 100 will after the electric motor 170 was started, the rotational force generated by the electric motor 170 was generated on the movable screw 161 through the rotation shaft 150 and the socket 151 transfer. The mobile snail 161 revolves relatively around the immovable snail 162 What the refrigerant compressor 160 caused to compress the refrigerant gas. Coolant, which is in the compression chamber 20 was compressed, presses and opens the valve unit 31 and flows into the ejection chamber 30 , The refrigerant gas in the ejection chamber 30 then flows into the oil separation chamber 40 through the communication hole 126 , The refrigerant gas from which the lubricating oil in the oil separation chamber 40 was separated flows through the oil separator cylinder 180 and gets through the chute 124 on the outside of the compressor 100 ejected.

Lubricating oil which has been separated from refrigerant gas in the oil separation chamber and which is in the first oil reservoir part 41 accumulated flows through the communication passage 127 and then flows through the inlet opening 130ae the seal 130 in the oil passage 61 , The pressure of the lubricating oil L1 is reduced while the lubricating oil L1 through the oil passage 61 flows. The lubricating oil L1 flows through the outlet opening 130DE in the second oil reservoir part 42 and then flows into the suction chamber 10 , The lubricating oil L1 flows together with the refrigerant gas from the suction chamber 10 in the compression chamber 20 and lubricates sliding parts in the refrigerant compressor 160 ,

In the compressor 100 According to the first embodiment, a plurality of slots which are part of the oil passage 61 form along the peripheral edge of the gasket 130 arranged and the interval parts are arranged between the slots. In this configuration, the slots form throttles of the oil passage 61 and the stiffness of the seal 130 is ensured by the interval parts. Further, in the first embodiment, the plurality of slots along the peripheral edges of the poetry 130 arranged. Therefore, the length of each slot extending along the peripheral edge of the seal 130 extends larger than the length of a hole in the middle part of the seal 130 as the oil passage can be formed, so that the oil passage 61 can have a sufficient length.

The oil passage 61 is in communication with the suction chamber 10 over the second oil reservoir part 42 , With this configuration, a stable supply of lubricating oil to the suction chamber 10 and a reduction in the pressure of the lubricating oil can be achieved, so that the power loss of the compressor 100 can be reduced. The above-described grooves are in the stationary screw 162 educated. Therefore, no additional element is needed to complete the passage 61 and it is easy to form the grooves.

Second embodiment

Hereinafter, a compressor according to a second embodiment of the present disclosure will be described with reference to FIG 4 to 6 described. The compressor of the second embodiment of the present disclosure is different from the compressor 100 of the first embodiment, substantially with respect to the arrangement of the gasket forming part of an oil passage. Therefore, description will be made of the configurations similar to those of the compressor 100 of the first embodiment, not repeated.

4 FIG. 15 is a longitudinal cross-sectional view illustrating the configuration of the compressor according to the second embodiment of the present disclosure. FIG. 5 is a cross-sectional view of the compressor, along the line VV and in the direction of the arrows in 4 considered. 6 is a cross-sectional view along the line VI-VI and in the direction of the arrows in 5 considered. It is noted that only one seal 230 and a stationary block 140 in 5 are shown. As in 4 to 6 2, the compressor of the second embodiment of the present disclosure, referred to as 200, is an electric scroll compressor. The compressor 200 includes a plurality of housing elements. According to the second embodiment, the gasket 230 between a stationary screw 162 and the immovable block 140 arranged and a spring plate 240 is between the immovable snail 162 and the seal 230 arranged.

A communication passage 227 which communicates between a first oil reservoir part 41 and an inlet opening 230ae the seal 230 is provided by a rear housing element 120 , the immobile snail 162 and the spring plate 42 educated. Details of the seal 230 will be described later.

As in 4 and 6 pictured is the seal 230 an end surface 140t of the immovable block 140 turned to the side of the immovable snail 162 is. As in 5 shown, the seal points 230 an opening in the middle part thereof and a back pressure chamber 50 is arranged in the opening. The space in the opening of the seal 230 is an intermediate pressure range of the compressor 200 ,

As in 5 shown has the seal 230 a plurality of slots arranged at intervals to extend along a peripheral edge of the gasket 230 to extend and a plurality of interval parts, which are arranged between the slots. In the second embodiment, the plurality of slots include the gasket 230 a first slot 230a , a second slot 230b , a third slot 230c and a fourth slot 230d , One end of the first slot 230a is substantially expanded in a circular shape to an inlet opening 230ae to build. An end of the fourth slot 230d is substantially expanded in a circular shape to an outlet opening 230de to build. The outlet opening 230de is located at such a position to communicate with a suction chamber 10 to communicate.

The variety of interval parts of the seal 230 includes a first interval part 230m between the first slot 230a and the second slot 230b , a second interval part 230n between the second slot 230b and the third slot 230c and a third interval part 230p between the third slot 230c and the fourth slot 230d ,

As in 5 and 6 are grooves in the end face 140t of the immovable block 140 at positions which correspond to the interval parts formed. According to the second embodiment, in the end face 140t of the immovable block 140 , a first groove 140a , a second groove 140b and a third groove 140c formed to correspond to the first interval part 230m , the second interval part 230n and the third interval part 230p to correspond. It is noted that each groove has a length which is greater than that of its corresponding interval part, so that the groove faces two adjacent slots, between which the corresponding interval part is arranged. Each groove has a cross-sectional area larger than that of the slots to which the groove faces. Therefore, the first to fourth slots function 230a . 230b . 230c and 230d as throttling an oil passage 62 ,

In the state in which the immovable snail 162 and the immovable block 140 interconnected with the spring plate 240 and the seal 230 Interposed therebetween, the first slot communicate 230a , the second slot 230b , the third slot 230c and the fourth slot 230d with each other via the first groove 140a , the second groove 140b and the third groove 140c to thereby the oil passage 62 to form, by which lubricating oil L2 in the first oil reservoir part 41 flows. The oil passage 62 provides communication between the first oil reservoir part 41 and a second oil reservoir part 42 ready, which in communication with the suction chamber 10 is. The oil passage 62 extends along substantially one half of the circumference of the seal 230 ,

Lubricating oil, which is refrigerant gas in an oil separation chamber 40 was separated and in the first oil reservoir part 41 accumulated flows through the communication passage 227 and flows into the oil passage 62 through the inlet opening 230ae the seal 230 , The pressure of the lubricating oil L2 is reduced while the lubricating oil L2 through the oil passage 62 flows. The lubricating oil L2 flows into the second oil reservoir part 42 through the outlet opening 230de , The lubricating oil L2 flows from the second oil reservoir part 42 in the suction chamber 10 and then flows into the compression chamber 20 along with the refrigerant gas and lubricates sliding parts in a refrigerant compressor 160 ,

In the compressor 200 According to the second embodiment, the plurality of slots, which are part of the oil passage 62 form along the peripheral edge of the gasket 230 arranged and the interval parts are arranged between the slots. In this configuration, the slots form throttles of the oil passage 62 and the stiffness of the seal 230 is ensured by the interval parts. Furthermore, in the second embodiment, the plurality of slots are along the peripheral edge of the gasket 230 arranged. Therefore, the length of each slot extending along the peripheral edge of the seal 230 extends, greater than the length of a hole, which in the middle part of the seal 230 as the oil passage is formed, so that the oil passage 62 can have a sufficient length.

The oil passage 62 is in communication with the suction chamber 120 over the second oil reservoir part 42 , In this configuration, a stable supply of lubricating oil to the suction chamber 10 and a reduction in the pressure of the lubricating oil is achieved, so that the power loss of the compressor 200 can be reduced.

The grooves described above become in the immovable block 140 educated. Therefore, no additional element is needed to the oil passage 62 and it is easy to form the grooves. In the second embodiment, although the grooves are in the end surface 140t of the immovable block 140 are formed, the arrangement of the grooves not limited to the end face 140t , The grooves may be in an end face of the spring plate 240 can be formed alternatively or both in the in end face 140t of the immovable block 140 , as well as the end face of the spring plate 240 be formed.

Third embodiment

Hereinafter, a compressor according to a third embodiment of the present disclosure will be described with reference to FIG 7 to 9 described. The compressor of the third embodiment is different from the compressor 100 the first embodiment, mainly in the arrangement of the seal, which forms part of an oil passage. Therefore, description will be made of the configurations similar to those in the compressor 100 of the first embodiment, not repeated.

7 FIG. 15 is a longitudinal cross-sectional view illustrating the configuration of the compressor according to the third embodiment of the present disclosure. FIG. 8th is a cross-sectional view of the compressor, along the line VIII-VIII and in the direction of the arrows in 7 considered. 9 is a cross-sectional view along the line IX-IX and in the direction of the arrows in 8th considered.

As in 7 to 9 is the compressor of the third embodiment of the present disclosure, as 300 denotes an electric scroll compressor. The compressor 300 includes a plurality of housing elements. According to the third embodiment, the plurality of housing members include a motor housing 310 a backside housing element 320 , a stationary block 140 , a mobile snail 361 and an immobile snail 362 , A seal 330 is between the motor housing 310 and the rear side housing member 320 arranged. In particular, a radial outer part of the seal 330 between the motor housing 310 and the rear side housing member 320 arranged and a radial inner part of the seal 330 is between the back case member 320 and the immovable snail 362 arranged.

The above case members are assembled or connected together to thereby form a case assembly 300h of the compressor 300 to build. The housing arrangement 300h has a refrigerant compressor 360 which is arranged to compress refrigerant absorbed from the outside. The refrigerant compressor 360 includes the movable snail 361 , the immobile snail 362 , a rotation shaft 150 , an eccentric pin 150p , a socket 151 and a warehouse 152 , The housing arrangement 300h has a suction chamber 10 on which coolant, which in the refrigerant compressor 360 is to be compressed from the outside absorbs.

An oil separation chamber 40 has at its bottom part a first oil reservoir part 41 in which lubricating oil, which in the oil separation chamber 40 was separated, accumulated. A connection passage 321 , which with an inlet opening 330ae communicates, is at the bottom of the oil separation chamber 40 provided. Details of the inlet opening 330ae will be described later.

As in 8th is shown, in the third embodiment, a second oil reservoir part 42 radially outward from an ejection chamber 30 educated. The second oil reservoir part 42 is in communication with a back pressure chamber 50 via an oil removal passage 365 passing through the immovable snail 362 in the longitudinal direction of the compressor 300 is formed. A control valve 390 is at a position in the oil extraction passage 365 arranged. The control valve 390 is set up to open the oil removal passage 365 in response to a difference between a pressure in the back pressure chamber 50 and a pressure in the second oil reservoir part 42 to regulate. The control valve 390 includes a ball valve 391 and a coil spring 392 and acts to increase the pressure difference between the back pressure chamber 50 and the second oil reservoir part 42 to keep at a certain level. By the action of the control valve 390 becomes the compressive force which the movable worm 361 in the direction of the immovable snail 362 pushes based on the pressure of the back pressure chamber 50 , essentially kept at a certain level. Lubricating oil in the back pressure chamber 50 flows into the second oil reservoir part 42 through the oil extraction passage 365 and accumulates in the second oil reservoir part 42 ,

As in 7 and 8th is shown, an oil return passage 364 , which is a communication between the lower part of the second oil reservoir part 42 and the suction chamber 10 provided by the immovable snail 362 , The second oil reservoir part 42 is a suction pressure range. The immovable snail 362 also has a communication passage 366 , which is in communication with the back pressure chamber 50 and in communication with an outlet opening 330ce which will be described in detail later.

Lubricating oil, which in the second oil reservoir part 42 is accumulated, becomes the suction chamber 10 over the oil return passage 364 guided and in a compression chamber 20 pulled along with the refrigerant gas and lubricates sliding parts in the refrigerant compressor 160 ,

As in 7 and 8th As shown, the seal is arranged in such a manner around the outer periphery of the second oil reservoir part 42 to surround. A radial inner part of the seal 330 is an endface 362t the immovable snail 362 which the rear side housing element 320 facing, facing. As previously described, the radial inner part of the seal 330 between the rear side housing element 320 and the immovable snail 362 arranged. The seal 330 has an opening in the middle part thereof and the ejection chamber 30 and the second oil reservoir part 42 are arranged in the opening. Therefore, the opening of the seal points 330 an ejection pressure area and a suction pressure area of the compressor 300 on.

As in 8th shown, the seal points 330 a plurality of slots formed at intervals along a peripheral edge of the seal 330 are arranged, and a plurality of interval parts, which are arranged between the slots, on. In the third embodiment, the plurality of slots include the gasket 330 a first slot 330a , a second slot 330b and a third slot 330c , One end of the first slot 330a is substantially expanded in a circular shape to the inlet opening 330ae to build. One end of the third slot 330c is substantially expanded in a circular shape to the outlet opening 330ce to build. The inlet opening 330ae is disposed at such a position as to communicate with the connection passage 321 to communicate. The outlet opening 330ce is located at such a position to communicate with the communication passage 366 to communicate. Therefore, the third slot 330c a part which extends in a circumferential direction of the seal 330 extends, and a part which extends in a radial direction of the seal 330 extends, up.

The seal 330 has a first interval part 330m between the first slot 330a and the second slot 330b , and a second interval part 330n between the second slot 330b and the third slot 330c ,

As in 8th and 9 shown, grooves are in the end face 362t the immovable snail 362 at positions which correspond to the interval parts formed. According to the third embodiment, in the end face 362t the immovable snail 362 a first groove 362a and a second groove 362b formed in accordance with the first interval part 330m and the second interval part 330n to correspond. It will It should be noted that each groove has a length which is greater than that of its corresponding interval part, so that the groove faces two adjacent slots, between which the corresponding interval part is arranged. Each groove has a cross-sectional area larger than that of slots to which the groove faces. Therefore, the first to third slots function 330a . 330b and 330c as throttling an oil passage 63 ,

In the state in which the rear side housing member 320 and the immovable snail 362 interconnected with the seal 330 Interposed therebetween, the first slot communicate 330a , the second slot 330b and the third slot 330c with each other via the first groove 362a and the second groove 362b to thereby the oil passage 63 through which lubricating oil L3 in the oil reservoir part 41 into the oil separation chamber 40 flows.

The oil passage 63 provides communication between the connection passage 321 and the communication passage 366 ready. Therefore, the oil separation chamber 40 and the back pressure chamber 50 in communication with each other about the oil passage 63 , The oil passage 63 extends substantially along a quarter of the circumference of the seal 330 , The pressure difference between the oil separation chamber 40 and the back pressure chamber 50 is smaller than the pressure difference between the oil separation chamber 40 and the suction chamber 10 , Therefore, the length of the oil passage 63 acting as a throttle passage between the oil separation chamber 40 and the back pressure chamber 50 less than the length of an oil passage that acts as a throttle passage between the oil separation chamber 40 and the suction chamber 10 acts.

In the third embodiment, although the grooves are in the end surface 362t the immovable snail 362 are formed, the arrangement of the grooves not limited to the end face 362t , The grooves may be in an end surface of the rear side housing member 320 , which is the end face 362t the immovable snail 362 facing, be formed with the seal 330 which is arranged between them. Alternatively, the grooves may be in both the end surface of the rear side housing member 320 , as well as in the end face 362t the immovable snail 362 be formed.

Lubricating oil, which of the refrigerant gas in the oil separation chamber 40 was separated flows through the connection passage 321 and then flows into the oil passage 63 through the inlet opening 330ae the seal 330 , The pressure of the lubricating oil L3 is reduced while the lubricating oil L3 through the oil passage 63 flows. The lubricating oil L3 enters the communication passage 366 through the outlet opening 330ce and flows into the back pressure chamber 50 , The rotation shaft 150 , the eccentric pin 150p , the socket 151 and the camp 152 in the back pressure chamber 50 be through the lubricating oil L3 lubricated.

In the compressor 300 According to the third embodiment, the plurality of slots which are part of the oil passage 63 form along the peripheral edge of the gasket 330 arranged and the interval parts are arranged between the slots. In this configuration, the slots form throttles of the oil passage 63 and the stiffness of the seal 330 is ensured by the interval parts. Furthermore, in the third embodiment, the plurality of slots are along the peripheral edge of the gasket 330 arranged. Therefore, the length of each slot extending along the peripheral edge of the seal 330 extends, greater than the length of a hole, which in the middle part of the seal 330 as the oil passage is formed, so that the oil passage 63 can have a sufficient length.

The oil passage 63 is in communication with the back pressure chamber 50 , With this configuration, a stable supply of lubricating oil to the back pressure chamber 50 and a reduction in the pressure of the lubricating oil is achieved, so that the power loss of the compressor 300 can be reduced.

The above-described grooves are in the stationary screw 362 educated. Therefore, no additional element is needed to the oil passage 63 and it is easy to form the grooves.

As in the case of the second embodiment, a spring plate and a seal between the stationary screw 362 and the immovable block 140 be arranged to communicate between the plurality of slots formed in the gasket and the grooves formed in the stationary block 140 are formed, thereby to form an oil passage. In this case, a communication passage is formed, which communication between the oil separation chamber 40 and an inlet of the oil passage, in the rear side housing member 320 , the immobile snail 362 and the spring plate.

Fourth embodiment

Hereinafter, a compressor according to a fourth embodiment of the present disclosure will be described with reference to FIG 10 to 12 described. The compressor of the fourth embodiment of the present disclosure is different from the compressor 100 the first embodiment, Mainly in that the compressor according to the fourth embodiment does not include an electric motor. Therefore, the description of the configurations that are similar to those in the compressor 100 of the first embodiment are not repeated.

10 FIG. 15 is a longitudinal cross-sectional view illustrating a configuration of the compressor according to the fourth embodiment of the present disclosure. FIG. 11 FIG. 12 is a cross-sectional view of the compressor of the fourth embodiment taken along the line. FIG XI-XI and in the direction of the arrows in 10 considered. 12 is a cross-sectional view along the line XII-XII and in the direction of the arrows in 11 considered.

As in 10 to 12 is the compressor of the fourth embodiment of the present disclosure, referred to as 400 , a scroll compressor driven by an engine for a vehicle, and the rotation driving force of the engine becomes a rotation shaft 150 of the compressor 400 transmitted by a belt. The compressor 400 includes a plurality of housing elements. According to the fourth embodiment, the plurality of housing members include a front side housing member 440 a backside housing element 420 , a mobile snail 461 and an immobile snail 462 , A seal 430 is between the back case member 420 and the immovable snail 462 arranged.

The above case members are assembled or connected together to thereby form a case assembly 400h of the compressor 400 to build. The housing arrangement 400h has a refrigerant compressor 460 configured to compress refrigerant taken in from outside. The refrigerant compressor 460 includes the movable snail 461 , the immobile snail 462 , the rotation shaft 150 , an eccentric pin 150p , a socket 151 and a warehouse 152 ,

An oil supply hole 462h is through the immovable snail 462 in the longitudinal direction of the compressor 400 educated. One end of the oil supply hole 462h , which is in the vicinity of the front side housing element 440 is arranged, is a sliding part between the movable screw 461 and the immovable snail 462 open.

An oil separation chamber 40 is in communication with a first oil reservoir part 41 via a connection passage 421 , The connection passage 421 is to a bottom of the oil separation chamber 40 open. A filter part 490 is at the bottom of the first oil reservoir part 41 provided. In the fourth embodiment, the filter part 490 formed in a hollow cylindrical shape and has a mesh structure. Lubricating oil, which in the filter part 490 flowing through an outer periphery thereof, is filtered by the mesh structure, and is then from an end of the hollow part, which at a radial inside of the filter part 490 is ejected.

As in 10 and 11 pictured is the seal 430 arranged in such a way to an ejection chamber 30 and the first oil reservoir part 41 to surround. A radial inner part of the seal 430 is an endface 462t the immovable snail 462 which the rear side housing element 420 facing, facing. As previously described, the radial inner part of the seal 430 between the rear side housing element 420 and the immovable snail 462 arranged. The seal 430 has an opening in the middle part thereof and the ejection chamber 30 and the first oil reservoir part 41 are arranged in the opening. The space in the opening of the seal 430 is an ejection pressure range of the compressor 400 ,

As in 11 shown, the seal points 430 a plurality of slots arranged at intervals to extend along a peripheral edge of the gasket 430 and a plurality of interval portions disposed between the slots. In the fourth embodiment, the plurality of slots include the gasket 430 a first slot 430a , a second slot 430b and a third slot 430c , One end of the first slot 430a is substantially expanded in a circular shape to an inlet opening 430ae to build. One end of the third slot 430c is substantially expanded in a circular shape to an outlet opening 430ce to build. The inlet opening 430ae is disposed at such a position to engage with the hollow part of the filter part 490 to communicate at the radial inside of it. The outlet opening 430ce is disposed at such a position to communicate with the oil supply hole 462h to communicate.

The variety of interval parts in the seal 430 includes a first interval part 430m between the first slot 430a and the second slot 430b and a second interval part 430n between the second slot 430b and the third slot 430c ,

As in 11 and 12 are grooves in the end face 462t the immovable snail 462 at positions which correspond to the interval parts formed. According to the fourth embodiment, in the end face 462t the immovable snail 462 a first groove 462x and a second groove 462y formed to corresponding to the first interval part 430m and the second interval part 430n to correspond. It is noted that each groove has a length which is greater than that of its corresponding interval part, so that the groove faces two adjacent slots, between which the corresponding interval part is arranged. Each groove has a cross-sectional area greater than that of the slots to which the groove faces. Therefore, the first to third slots function 430a . 430b and 430c as throttling an oil passage 64 ,

In the state in which the rear side housing member 420 and the immovable snail 462 connected to each other with the seal 430 Interposed therebetween, the first slot communicate 430a , the second slot 430b and the third slots 430c with each other via the first groove 462x and the second groove 462y to thereby the oil passage 64 to form, by which lubricating oil L4 passing through the filter part 490 has passed through, flows.

The oil passage 64 provides communication between the filter part 490 and the oil supply hole 462h ready. Therefore, the first oil reservoir part 41 in communication with the sliding part, between the movable screw 461 and the immovable snail 462 , over the oil passage 64 , The oil passage 64 extends along substantially one half of the circumference of the seal 430 ,

In the fourth embodiment, although the grooves are in the end surface 462t the immovable snail 462 are arranged, the arrangement of the grooves not on the end face 462t limited. The grooves may be in an end surface of the rear side housing member 420 , which is the end face 462t the immovable snail 462 facing, be formed with the seal 430 which is between the end face of the rear side housing element 420 and the endface 462t the immovable snail 462 is arranged. Alternatively, the grooves may be in both the end surface of the rear side housing member 420 , as well as in the end face 462t the immovable snail 462 be arranged.

The lubricating oil which passes through the filter part 490 filtered, flows into the oil passage 64 through the inlet opening 430ae the seal 430 , The pressure of the lubricating oil L4 is reduced while the lubricating oil L4 through the oil passage 64 flows. The lubricating oil L4 enters the oil supply hole 462h through the outlet opening 430ce the seal 430 one to sliding parts between the movable screw 461 and the immovable snail 462 to reach.

In the compressor 400 According to the fourth embodiment, the plurality of slots which are part of the oil passage 64 form along the peripheral edge of the gasket 430 arranged and the interval parts are arranged therebetween. In this configuration, the slots form throttles of the oil passage 64 and the stiffness of the seal 430 is ensured by the interval parts. Furthermore, in the fourth embodiment, the plurality of slots are along the peripheral edge of the gasket 430 arranged. Therefore, the length of each slot extending along the peripheral edge of the seal 430 extends, larger than that of the hole, which in the middle part of the seal 430 as the oil passage is formed, so that the oil passage 64 can have a sufficient length.

The oil passage 64 is in communication with the moving parts between the moving screw 461 and the immovable snail 462 , In this configuration, a stable supply of lubricating oil to the sliding parts and a reduction in the pressure of the lubricating oil are achieved, so that the power loss of the compressor 400 can be reduced.

The above-described grooves are in the stationary screw 462 educated. Therefore, no additional element is required to the oil passage 64 and it is easy to form the grooves.

Fifth embodiment

Hereinafter, a compressor according to a fifth embodiment of the present disclosure will be described with reference to FIG 13 to 15 described. The compressor of the fifth embodiment of the present disclosure is different from the compressor 100 of the first embodiment, substantially in that the compressor according to the fifth embodiment is a blade compressor. Therefore, description will be made of the configurations similar to those in the compressor 100 the first embodiment is not repeated.

13 FIG. 15 is a longitudinal cross-sectional view illustrating a configuration of the compressor according to the fifth embodiment of the present disclosure. FIG. 14 FIG. 10 is a cross-sectional view of the compressor of the fifth embodiment taken along the line. FIG XIV-XIV and in the direction of the arrows in 13 considered. 15 is a cross-sectional view along the line XV-XV and in the direction of the peephole in 14 considered.

As in 13 to 15 10, the compressor of the fifth embodiment of the present disclosure, referred to as 500, is an electric blade compressor. The compressor 500 includes a plurality of housing elements. According to the fifth embodiment, the Variety of housing elements a motor housing 510 a backside housing element 520 , a cylindrical body 540 as the cylinder of the present disclosure, a back plate 580 and a cover 591 an oil separator 590 , A seal 530 is between the back panel 580 and the cover 591 of the oil separator 590 arranged.

The above case members are assembled or connected together to thereby form a case assembly 500h of the compressor 500 to build. The compressor 500 further includes a rotation shaft 550 that rotates in the housing assembly 500h is supported. The housing arrangement 500h has a refrigerant compressor 560 which is arranged to compress refrigerant, which is taken from the outside. The refrigerant compressor 560 includes a rotor 561 and a variety of scoop 562 , compression chambers 20 be in the refrigerant compressor 560 Are defined. The refrigerant compressor 560 compacts coolant by rotating the shaft 550 is turned.

In the interior of the housing assembly 500h is an ejection chamber 30 defined at the back of the back panel 580 , Coolant, which in the refrigerant compressor 560 is compressed, is on the outside of the compressor 500 through the ejection chamber 30 ejected. A first oil reservoir part 41 is under the ejection chamber 30 arranged. The oil separator 590 is on one side of the back panel 580 attached, which the ejection chamber 30 is facing. An oil separation chamber 40 is in the oil separator 590 educated. An intermediate pressure chamber 60 , which with the first oil reservoir part 41 and with back pressure chambers 50 communicates is between the back panel 580 and the oil separator 590 educated.

The following is the configuration of the compressor 500 described in detail. An inlet channel 511 is at the motor housing 510 provided. In the interior of the motor housing 510 is a room which is in communication with the inlet duct 511 is, as a suction chamber 10 defines which is a suction pressure range.

The backside housing element 520 is with a rear end of the motor housing 510 connected. An ejection channel 521 , which is a communication between the ejection chamber 30 and the outer side is provided with the rear side housing member 520 provided.

The cylinder body 540 is through a front panel 542 and a cylinder 541 , which are integrally formed, formed and the back plate 580 is at an open end of the cylinder 541 attached. The cylinder 541 , the front panel 542 and the back plate 580 work together to form a cylinder chamber 12 define. The compressor chambers 20 are in the compression chamber 12 Are defined. A circular groove 545 is in an end face of a front panel 542 which is near a rear end of the rotary shaft 550 is formed.

A suction passage 546 leading to the suction chamber 10 is open and a suction channel 547 leading to the cylinder chamber 12 is opened in the cylinder body 540 educated. The suction chamber 10 and the cylinder chamber 12 are in communication with each other via the suction passage 546 and the suction channel 547 , The cylinder body 540 has a cutout part 549 and an ejection channel 548 on. The cutting part 549 and an inner peripheral surface of the rear side housing member 520 work together to create a discharge room 32 in the cylinder body 540 define. The discharge channel 548 provides communication between the ejection space 32 and the compression chamber 20 ready. A valve unit 31 , which the chute 548 opens and closes, is in the ejection room 32 arranged.

A circular groove 583 is in the back panel 580 formed in such a way around a circle around the rotation shaft 550 to build. The circular groove 583 communicates with the intermediate pressure chamber 60 over a hole 584 , Details of the intermediate pressure chamber 60 will be described later. A communication hole 582 , which with the ejection space 32 communicates is through the back panel 580 educated.

As in 13 are shown the refrigerant compressor 560 and an electric motor in an axial direction of the rotary shaft 550 arranged. The electric engine 570 includes a motor rotor 571 and a stator 572 , The motor rotor 571 is with the rotation shaft 550 connected. The rotation shaft 550 is axially supported by a bottom wall of the motor housing 510 , the front panel 542 and the back panel 580 ,

The rotor 561 is at the rotation shaft 550 attached to rotate integrally with it and is in the cylinder chamber 12 arranged. A variety of vane slots 561m is in an outer periphery of the rotor 561 formed and a shovel 562 is in every vane slot 561m inserted. Every scoop 562 slides, during the rotation of the rotor 561 , in the vane slot 561m in and out.

The rotor 561 and the shovel 562 work together to the compressor chambers 20 to build. The vane slots 561m and the shovel 562 work together to the back pressure chambers 50 to build. The back pressure chambers 50 are in Communication with the circular groove 583 the back panel 580 ,

The oil separator 590 is through the cover 591 and an oil separation cylinder 592 educated. The cover 591 is at the back panel 580 fastened with bolts. The seal 530 is between the back panel 580 and the cover 591 arranged. The intermediate pressure chamber 60 is through the back panel 580 , the cover 591 , the seal 530 and the rotation shaft 550 Are defined. The intermediate pressure chamber 60 and the back pressure chambers 50 are in communication with each other through the through hole 584 the back panel 580 and the circular groove 583 ,

The oil separation chamber 40 in communication with the ejection chamber 30 is and the oil separation cylinder in it 592 is in the cover 591 arranged. The oil separation chamber 40 has an opening at one end thereof 593 on and the oil separation cylinder 592 is in the opening 593 attached. An oil discharge channel 595 is at the other end of the oil separation chamber 40 provided.

A communication hole 594 which communicates with the communication hole 582 the back panel 580 communicates is through the cover 591 educated. The communication hole 582 and the communication hole 594 cooperate to form an ejection passage, which communicates between the ejection space 32 and the oil separation chamber 40 provides.

As in 13 and 14 the seal is shown 530 an end surface 591t the cover 591 , which the back plate 280 facing, facing. As previously described, the seal 530 between the back panel 580 and the cover 591 arranged. The intermediate pressure chamber 60 is in the opening of the seal 530 arranged in the middle part thereof. The space in the opening of the seal 530 is an intermediate pressure range of the compressor 500 ,

As in 14 shown has the seal 530 a plurality of slots arranged at intervals to extend along a peripheral edge of the seal 530 to extend and a plurality of interval parts, which are arranged between the slots on. In the fifth embodiment, the plurality of slots include the gasket 530 a first slot 530a , a second slot 530b , a third slot 530c , a fourth slot 530d , a fifth slot 530e , a sixth slot 530f and a seventh slot 530g ,

The first slot 530a has a filter part at one end. The filter part is formed in a comb shape. The filter part includes a plurality of comb-toothed inlet passages 530am which are arranged parallel to each other and a connection passage 530an to which one end of each inlet passage 530am connected is. The other end of each inlet passage 530am is substantially expanded in a circular shape to an inlet opening 530ae to build. The inlet openings 530ae are arranged at such positions to be with the first oil reservoir part 41 to communicate. Therefore, the first slot 530a arranged to move in a radial direction of the seal 530 to extend.

An end of the seventh slot 530g is substantially expanded in a circular shape to an outlet opening 530ge to build. The outlet opening 530ge is located at such a position to communicate with the intermediate pressure chamber 60 to communicate. Therefore, the seventh slot 530g a part which extends in a circumferential direction of the seal 530 extends and a part which extends in a radial direction of the seal 530 extends, up.

The variety of interval parts of the seal 530 includes a first interval part 530m between the first slot 530a and the second slot 530b , a second interval part 530n between the second slot 530b and the third slot 530c , a third interval part 530P between the third slot 530c and the fourth slot 530d , a fourth interval part 530q between the fourth slot 530d and the fifth slot 530e , a fifth interval part 530R between the fifth slot 530e and the sixth slot 530f and a sixth interval part 530s between the sixth slot 530f and the seventh slot 530g ,

As in 14 and 15 shown, grooves are in the end face 591t the cover 591 at positions which correspond to the interval parts formed. According to the fifth embodiment, in the end surface 591t the cover 591 a first groove 591b , a second groove 591c , a third groove 591d , a fourth groove 591e , a fifth groove 591F and a sixth groove 591g formed in accordance with the first interval part 530m , the second interval part 530n , the third interval part 530P , the fourth interval part 530q , the fifth interval part 530R and the sixth interval part 530s to correspond. It is noted that each groove has a length which is greater than that of its corresponding interval part, so that the groove faces two adjacent slots, between which the corresponding interval part is arranged. A seventh groove 591a is in the endface 591t the cover 591 disposed at a position corresponding to the connection passage 530an corresponds. This seventh groove 591a is the connection passage 530an facing.

In the state in which the back panel 580 and the cover 591 connected to each other with the seal 530 Interposed therebetween, the first slot communicate 530a , the second slot 530b , the third slot 530c , the fourth slot 530d , the fifth slot 530e , the sixth slot 530f and the seventh slot 530g with each other via the first groove 591b , the second groove 591c , the third groove 591d , the fourth groove 591e , the fifth groove 591F and the sixth groove 591g to thereby an oil passage 65 through which lubricating oil L5 in the first oil reservoir part 41 flows to form. The oil passage 65 provides communication between the first oil reservoir part 41 and the hiss pressure chamber 60 ready. The oil passage 65 extends substantially along the circumference of the seal 530 , Each groove has a cross-sectional area which is larger than those of slots to which the groove faces. Therefore, the first to seventh slots act 530a . 530b . 530c . 530d . 530e . 530f and 530g as throttling the oil passage 65 ,

In the fifth embodiment, although the grooves are in the end surface 591t the cover 591 are formed, the arrangement of the grooves not on the end face 591t limited. The grooves may be in an end surface of the back plate 580 be formed, which of the end surface 591t the cover 591 , with the seal 530 which is disposed therebetween, facing. Alternatively, the grooves may be in both the end surface of the back plate 580 as well as in the end face 591t the cover 591 be arranged.

In the compressor 500 will after the electric motor 570 is started, the rotational force generated by the electric motor to the rotor 561 over the rotation shaft 550 transferred, which then the rotor 561 in the cylinder chamber 12 rotates, allowing the volume of each compression chamber 20 repeatedly increases and decreases. While the volume of any of the compression chambers 20 It increases, it becomes coolant with a low pressure, which is the suction chamber 10 has left and through the suction passage 546 and the suction channel 547 flowed into the compression chamber allowed 20 to flow.

Coolant, which is in the compression chamber 20 is compressed, presses and opens the valve unit 31 and passes through the chute 548 through and flows into the ejection space 32 , then flows into the oil separation chamber 40 through the communication hole 582 and the communication hole 594 , After the separation of lubricating oil in the oil separation chamber 40 the coolant gas flows through the oil separation cylinder 592 and then on the outside of the compressor 500 through the discharge channel 521 ejected.

The separated lubricating oil flows through the oil discharge channel 595 and accumulates in the first oil reservoir part 41 and then enters the oil passage 65 through the inlet opening 530ae the seal 530 one. The pressure of the lubricating oil L5 is reduced while the lubricating oil L5 through the oil passage 65 flows. The lubricating oil L5 enters the intermediate pressure chamber 60 through the outlet opening 530ge one. The lubricating oil L5 in the intermediate pressure chamber 60 enters the back pressure chamber 50 one, as a back pressure against the blades 562 to act and sliding parts in the refrigerant compressor 560 , such as the blades 562 and the rotor 561 to smear.

In the compressor 500 According to the fifth embodiment, the plurality of slots which are part of the oil passage 65 form along the peripheral edge of the gasket 530 arranged, and the interval parts are arranged between the slots. In this configuration, the slots form throttles of the oil passage 65 and the stiffness of the seal 530 is ensured by the interval parts. Further, in the fifth embodiment, the plurality of slits are along the peripheral edge of the gasket 530 arranged. Therefore, the length of each slot extending along the peripheral edge of the seal 530 extends, greater than the length of a hole, which in the middle part of the seal 530 as the oil passage is formed, so that the oil passage 65 can have a sufficient length.

The oil passage 65 is in communication with the intermediate pressure chamber 60 , With this configuration, a stable supply of lubricating oil to the intermediate pressure chamber 60 and a reduction in the pressure of the lubricating oil can be achieved, so that the power loss of the compressor 500 can be reduced.

The grooves described above are in the cover 591 educated. Therefore, no additional element is needed to the oil passage 65 and it is easy to form the grooves. Since the filter part at the inlet of the oil passage 65 (ie at one end of the first slot 530a) is provided, an intrusion of foreign material into the oil passage 65 prevents what is blocking or clogging of the oil passage 65 prevented. Since the comb-toothed slots, which in the seal 530 are formed, constitute the filter part, no additional element is required to form the filter member and processing the slots, which the oil passage 65 forming and processing the slots which form the filter part is achieved simultaneously. Therefore, the filter part is easily formed. It is understood that the filter part is not necessarily in the seal 530 must be formed and that the filter part by an element, which by the seal 530 is separated, can be provided as in the case of the fourth embodiment.

The configurations of the present disclosure are not limited to those of the previously described embodiments, and configurations may be combined with each other. In the first to fifth embodiments, although each of the seals 130 . 230 . 330 . 430 and 530 has three to seven slots, the number of slots not limited thereto, as long as each of the seals 130 . 230 . 330 . 430 and 530 has several slots. In the first to fifth embodiments, the lengths of the slots which are part of the oil passages 61 . 62 . 63 . 64 and 65 larger than those of their corresponding grooves. However, each groove may have a length greater than that of its corresponding slot. In such a case, it is possible to improve the rigidity of the gaskets facing the oil grooves. In the first and second embodiments, the oil passages 61 and 62 each communication between the first oil reservoir part 41 and the suction chamber 10 over the second oil reservoir part 42 ready. However, the first oil reservoir part 41 and the compression chambers 20 over the oil passages 61 and 62 communicate with each other. In such a case, the supply of lubricating oil to each compression chamber 20 suitably controlled and reduced so that a stable compaction performance is achieved. In the first to fifth embodiments, the slots may be provided through through holes or lower grooves. The first to third embodiments may be configured to have a filter part provided at the inlet of the oil passage, as in the cases of the fourth and fifth embodiments.

It is noted that the peripheral edge of the gasket herein includes the outer peripheral edge of the gasket and the inner peripheral edge of the gasket corresponding to the gasket of the opening. Arcuately extending the slots in the circumferential direction of the seal will increase the lengths of the slots and result in stable throttle passages.

It is noted that the first to fifth embodiments of the present disclosure are in all respects exemplary and not limiting. The scope of the present disclosure is defined not by the descriptions of the above embodiments but by the claims, and includes all modifications which fall within the meaning and scope of the equivalence of the claims.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• JP 2006 [0002]
• JP 57459 [0002]

Claims (8)

A compressor (100, 200, 300, 400, 500) comprising: a housing assembly (100h, 300h, 400h, 500h) having a plurality of housing members (110, 120, 140, 160, 310, 320, 360, 420, 440 , 460, 510, 520, 540, 560, 580, 590) including a first housing member (162, 140, 362, 462, 591) and a second housing member (120, 162, 320, 420, 580), wherein the housing assembly (100h, 300h, 400h, 50ooh) is formed by connecting the housing members (110, 120, 140, 160, 310, 320, 360, 420, 440, 460, 510, 520, 540, 560, 580, 590) together; a seal (130, 230, 330, 430, 530) disposed between the first housing member (162, 140, 362, 462, 591) and the second housing member (120, 162, 320, 420, 580); a refrigerant compressor (160, 360, 460, 560) disposed in the casing assembly (100h, 300h, 400h, 500h) and configured to compress refrigerant received from the outside; and an oil reservoir part (41) provided in the housing assembly (100h, 300h, 400h, 500h) and in which lubricating oil separated from the ejected coolant is accumulated, characterized in that the seal (130, 230 , 330, 430, 530) have a multiplicity of slots (130a, 130b, 130c, 130d, 230a, 230b, 230c, 230d, 330a, 330b, 330c, 430a, 430b, 430c, 530a, 530b, 530c, 53d, 530e, 530f, 530g) which are arranged at intervals so as to extend along a peripheral edge of the gasket (130, 230, 330, 430, 530) and a plurality of interval portions (130m, 130n, 130p, 230m, 230n, 230p, 330m, 330n, 430m, 430n, 530m, 530n, 530p, 530q, 530r, 530s) disposed between the slots (130a, 130b, 130c, 130d, 230a, 230b, 230c, 230d, 330a, 330b, 330c, 430a, 430b, 430c, 530a, 530b, 530c, 530d, 530e, 530f, 530g), wherein the first housing member (162, 140, 362, 462, 591) has an end surface (162t, 140t, 362t, 462t, 591t ) which faces the seal (130, 230, 330, 430, 530), and wherein a plurality of grooves (162a, 162b, 162c, 140a, 140b, 140c, 362a, 362b, 462x, 462y, 591a, 591b, 591c , 591d, 591e, 591f, 591g) is formed in the end face (162t, 140t, 362t, 462t, 591t) at positions corresponding to the interval parts (130m, 130n, 130p, 230m, 230n, 230p, 330m, 330n, 430n, 430n, 530m, 530n, 530p, 530q, 530r, 530s), so that each groove (162a, 162b, 162c, 140a, 140b, 140c, 362a, 362b, 462x, 462y, 591a, 591b, 591c, 591d , 591e, 591f, 591g) facing its corresponding interval part (130m, 130n, 130p, 230m, 230n, 230p, 330m, 330n, 430m, 430n, 530m, 530n, 530p, 530q, 530r, 530s), wherein in one state in which the first housing element (162, 140, 362, 462, 591) and the second housing element (120, 162, 320, 420, 580) are connected to one another, with the seal (130, 230, 330, 430) arranged therebetween. 530), the plurality of slots (130a, 130b, 130c, 130d, 230a, 230b, 230c, 230d, 330a, 330b, 330c, 430a, 430b, 430c, 530a, 530b, 530c, 530d, 530e, 530f, 530g) with each other via the grooves (162a, 162b, 162c, 140a, 140b, 140c, 362a, 362b , 462x, 462y, 591a, 591b, 591c, 591d, 591e, 591f, 591g) to thereby form part of an oil passage (61, 62, 63, 64, 65) through which lubricating oil in the oil reservoir part ( 41) flows to the refrigerant compressor (160, 360, 460, 560), and wherein the slots (130a, 130b, 130c, 130d, 230a, 230b, 230c, 230d, 330a, 330b, 330c, 430a, 430b, 430c , 530a, 530b, 530c, 530d, 530e, 530f, 530g) constitute throttles of the oil passage (61, 62, 63, 64, 65). Compressor (100, 200, 300, 400, 500) according to Claim 1 characterized in that a compression chamber (20) is defined in the coolant compressor (160, 360, 460, 560), the housing assembly (100h, 300h, 400h, 500h) having therein a suction chamber (10) containing coolant from externally, which is to be compressed in the refrigerant compressor (160, 360, 460, 560), and wherein the oil passage (61, 62, 63, 64, 65) with the suction chamber (10) or the compression chamber (20) in Communication is. Compressor (100, 200, 300, 400) according to Claim 2 characterized in that the coolant compressor (160, 360, 460) includes a fixed scroll (162, 362, 462) and a movable scroll (161, 361, 461) cooperating to form the compression chamber (20) , Compressor (100, 200, 300, 400) according to Claim 3 characterized in that the housing assembly (100h, 300h, 400h) has therein a back pressure chamber (50) formed on a side of the movable scroll (161, 361, 461) which is movable from the fixed scroll (162, 362 , 462) and which pushes the movable scroll (161, 361, 461) towards the fixed scroll (162, 362, 462) and the oil passage (61, 62, 63, 64) communicates with the backpressure chamber (50 ) is in communication. Compressor (500) according to Claim 1 characterized in that the compressor (500) includes a rotation shaft (550) rotatably supported in the housing assembly (500h), the coolant compressor (560a) including a rotor (561) mounted on the rotation shaft (550) and having a plurality of blade slots (561m) which are on an outer periphery and a plurality of vanes (562) inserted into the vane slots (561m) and sliding into and out of the vane slots (561m), the vane slots (561) and the vanes (562) cooperate to provide backpressure. Chamber (50), the plurality of housing elements (510, 520, 540, 560, 580, 590) include a cylinder (541), the rotor (561) is arranged in the cylinder (541), a first side plate (542 ) and a second side plate (580) are mounted on opposite ends of the cylinder (541), the housing assembly (500h) has an ejection chamber (30) defined therein on one side of the second side plate (580) and through which coolant in the refrigerant compressor (560a) is compressed, is discharged to the outside, the oil reservoir part (41) under the ejection chamber (30) in the housing assembly (500h) is arranged, an oil separator (590) to the second side plate (580) , on one side d avon, which faces the ejection chamber (30), an oil separation chamber (40) is formed in the oil separator (590), an intermediate pressure chamber (60) which communicates with the oil reservoir part (41) and the counterpressure Chamber (50) between the oil separator (590) and the one of the second side plate (580) is formed, the seal (530) between the second side plate (580) and the oil separator (590) is arranged and the oil passage (65) communication between the oil reservoir part (41) and the intermediate pressure chamber (60). Compressor (400, 500) according to Claim 1 characterized in that a filter part (490, 530am, 530ae, 530an) is provided in an inlet of the oil passage (64, 65). Compressor (500) according to Claim 6 characterized in that the filter member (530am, 530ae, 530an) is formed in the gasket (530) and has a comb shape and includes a plurality of comb tooth shaped slots (530am). The compressor (100, 200, 300, 400, 500) according to any one of Claims 1 to 7 characterized in that each groove (162a, 162b, 162c, 140a, 140b, 140c, 362a, 362b, 462x, 462y, 591a, 591b, 591c, 591d, 591e, 591f, 591g) has a length that is larger, as a length of its corresponding interval portion (130m, 130n, 130p, 230m, 230n, 230p, 330m, 330n, 430m, 430n, 530m, 530n, 530p, 53oq, 530r, 530s) such that the groove (162a, 162b, 162c , 140a, 140b, 140c, 362a, 362b, 462x, 462y, 591a, 591b, 591c, 591d, 591e, 591f, 591g) of two adjacent slots (130a, 130b, 130c, 130d, 230a, 230b, 230c, 230d, 330a , 330b, 330c, 430a, 430b, 430c, 530a, 530b, 530c, 53od, 530e, 530f, 530g), between which the corresponding interval part (130m, 130n, 130p, 230m, 230n, 230p, 330m, 330n, 430m, 430n, 530m, 530n, 530p, 530q, 530r, 530s) and has a cross-sectional area larger than cross-sectional areas of the adjacent slots (130a, 130b, 130c, 130d, 230a, 230b, 230c, 230d, 330a, 330b, 330c, 430a, 430b, 430c, 530a, 530b, 530 c, 530d, 530e, 530f, 530g).

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