Upper cover plate for scroll compressor

[Detailed Description of the Invention]

The present invention generally relates to a seal scroll type compressor, and it is related with this compressor that has the fixation and the swing scroll member which gear mutually in Yo Si details, In order to promote the proper seal between a fixed scroll member and a swing scroll member during operation of a compressor in this compressor, it is desirable to minimize bending of both scroll members. A typical scroll compressor comprises two scroll members which have an in ? lute lap respectively and which meet, and in this scroll compressor, each lap fits in mutually, in order to form a plurality of sealing pockets. When one scroll member circles to another side, four pieces and A move between the suction port of the method of the outside of a radial direction, and the discharge port of the method of the inside of a radial direction, and transport and compress refrigerant fluid. Generally, it is believed that a scrolled type compressor provides quiet and efficient operation of low maintenance potentially in the use of various frozen systems. However, some design subjects have refused stubbornly to receive a scroll compressor in a market widely and to succeed commercially. For example, from an interface, the pressure of the compression refrigerant fluid in the interface between the scroll members under operation of a compressor separates, and sags a scroll member, namely, it incurvates it to the method of outside. Bending of this scroll member makes a closing pocket leak by the interface of the lap tip of one scroll member, and the front of a countering scroll member. This leak causes decline in the operation efficiency of a compressor. The stress relevant to the curvature cycle of bending will make vulnerable the component parts and the assembly joint of a compressor, and will bring failure forward. While the swing scroll member is typically reinforced in the direction of an axis by driven 711 portions, a fixed scroll member possesses the plate portion which does not have reinforcement reverse side reliance at all by the other method. as a result, a fixed scroll member -- much more -- bending -- Acceptance -- I am easy . As general shape of a sealed type scroll compressor, A room which adjoins the back of a fixed scroll member is prescribed by the whole back and the housing end part of a fixed scroll member great portion. If A room is occupied by refrigerant fluid with suction pressure power, the differential pressure between Takumi and the sealing pocket which arise as the result will sag a plate portion in the method of outside, and will produce the leak relevant to it. If A room is Occupy(ed) by refrigerant fluid with discharge pressure, the differential pressure which arises by it will sag a plate portion in an inner direction. inner direction bending is obtained, and the result, Si, and this against which a 7'' tip and the surface rub make friction loss cause, and affect the seal characteristic under change of the operational status of a compressor. In order to prevent bending of a fixed scroll member, a tough material may be used while enlarging thickness of a plate portion. However, the trials which bend few by giving rigidity to a plate portion in this way are the size of a compressor, and weight. And there is a tendency which raises expense. Another fault of the sealing scroll type compressor of the kind described here is that it is difficult in a housing to assemble a scroll compressor mechanism. Especially typically, before a compressor mechanism seals and closes upsilon Knowing to attachment of the Knowing end part which counters, it is attached into a cylindrical central housing portion. In this assembly method, while a compressor mechanism is attached to 71 Uzing, it is necessary to set up the opening between the rotor of a motor, and a stator. Merit hangs down this assembly method and the other publicly known methods, and their Labor is severe and, as for them, thereby, is applied to the whole scroll compressor price and complexity. Aiming at the present invention conquering the above-mentioned subject relevant to a scrolled type compressor, in this invention, while suppressing bending of the plate portion of a fixed scroll member at worst, to provide the assembly method with which the scroll compressor was improved is desired. In the present invention, a plate member to a sealing scroll compressor is provided. Therefore, a fault of a scrolled type compressor of the above-mentioned prior art is conquered. In this invention, a plate member is attached in contact with the back of a fixed scroll member, resists bending of the fixed scroll member, and makes the assembly of a compressor easy. Generally, the present invention comprises a fixed scroll member and a swing scroll member as a - mode, A fixed scroll member provides a scrolled type compressor which has a plate portion which receives the bending brought about by the compression refrigerant fluid in the interface between a fixed scroll member and a swing scroll member. In one mode of the present invention, the refrigerant fluid of discharge pressure is Exposure used so that the partial predetermined field in the plate partial back of a fixed scroll member may equalize substantially power of acting on a plate portion, and this removes bending of a plate portion substantially. As a - mode, the present invention provides Yo Si details with the scroll compressor possessing the fixation and the swing scroll member which were engaged mutually so that it may form the pocket of compression refrigerant fluid. A fixed scroll member will be a reinforcement plate if it depends on one mode of the 0 present invention containing the plate portion which receives bending by the compressive force which occurred at the pocket, The discharge room which should be attached in contact with the back of the plate portion of a fixed scroll member, and should have a compression refrigerant breathed out among both is formed, If it depends on another mode of the 0 present invention which puts a partial field on the back to discharge pressure by that cause, and removes bending of a fixed-on substance scroll member, a scroll compressor possesses a seal housing and a reinforcement plate comprises the top cover plate to housing shell with an upper opening. A cover plate covers an upper opening and is attached to housing shell in the shape of seal. The scroll compressor mechanism was carried out under Hanging from Cover Great, and is prolonged in the housing interior. The advantage of the scroll compressor of the present invention is that bending of a fixed scroll member is removed on substance, and can control the clearance at Scroll roller and the tip of 7 degree satisfactorily in the operational status of a compressor by that cause. Another advantage of the scroll compressor of the present invention is being able to make the plate portion of a fixed scroll member thin so that necessary quantity of the material of a compressor and weight may be lessened. Another advantage of the scroll compressor of the present invention is that the physical size of a compressor becomes small. One more advantage of the scroll compressor of the present invention is that provide top power / ?-plate to the housing closed in the shape of seal, and this top cover plate eliminates bending of a fixed scroll member on substance. Another advantage of the scroll compressor of the present invention is that a top cover plate provides discharge 77 Ra. Still another advantage of the scroll compressor of the present invention is that top Cover Great provides the suction entrance insulated from discharge pressure and the heat relevant to this, and improves the efficiency of a compressor. Another advantage of the scroll compressor of the present invention is that top Cover Great makes an easy assembly of a compressor possible. The scroll compressor of the present invention provides the fixed scroll member possessing the plate portion which had the surface and the back as one mode. The surface has involute To fix and f Shoe needed on it. A swing scroll member also possesses a Indices lute revolution lap element. To fix, a A element, and a revolution lap element are mutually clenched, in order to form at least one pocket of the refrigerant fluid compressed by the circling movements of the swing scroll member to a fixed scroll member. A plate is attached to a fixed scroll member in contact with the back of this. A plate makes a predetermined partial field on the back put to compression refrigerant fluid. The present invention provides the scroll compressor possessing a fixed scroll member, a swing scroll member, and a great member in - mode of this further. A fixed scroll member possesses a plate portion with the surface and the back. The surface has an involute fixed lap element on it. A plate portion possesses the discharge port which penetrates and extends, in order to aim at the free passage of fluid between the method portion of the inside of a radial direction of a fixed lap element, and the back. A swing scroll member possesses in ? Ruth To turn and a A element, and, thereby, are fixation and To turn, A A element gets into gear mutually and forms at least one pocket of the refrigerant fluid compressed into the method of the inside of a radial direction by the circling movements of the swing scroll member to a fixed scroll member toward discharge-1 A. A plate member is attached in contact with the back of a fixed scroll member. A discharge room is formed of the predetermined field of the back of a great member and a fixed scroll member. a discharge room opens a discharge port and fluid for free passage -- Si -- thereby, a partial field on the back is put to compression refrigerant fluid. The present invention provides the scroll compressor further closed in one mode of this in the shape of [ for compressing the refrigerant fluid possessing the shell upright in the shape of / with an upper opening / perpendicular ] seal. A top cover plate is provided and the upper cover great Is the upper opening is covered, and it is attached to the upper opening in the shape of seal so that the housing closed in the shape of [ in which shell and a cover plate have interior space ] seal may be comprised. Scroll compressor mechanisms are a fixed scroll member and a swing scroll member. And the actuator for making it circle in a swing scroll member to a fixed scroll member is provided in order to compress refrigerant fluid. A compressor mechanism is attached to top Hippo-Great, and is prolonged below in the interior space of 1 A seal housing. The present invention provides the method of assembling a scroll compressor device in - mode of this still more nearly further, and this device possesses a scroll compressor mechanism in the housing closed in the shape of seal. A compression i mechanism contains the fixed scroll member which has a great portion. An assembly method provides a top cover plate and includes the stage of attaching a compressor mechanism to top Cover Great so that the plate portion of a fixed scroll member may touch a top cover plate. The shell upright in the shape of perpendicular is provided with an upper opening. An assembly method establishes the stage of attaching Cover Great to shell so that a cover plate may cover an upper opening in the shape of seal and a compressor 43M style may be further prolonged below in shell. In the example of the present invention shown in the drawing, it explains with reference to the 1~3rd figure especially. Compressor 10 is shown with the housing which showed the whole with numerals 12. A housing has upper cover great 14 * central partial 16. and bottom portion 18, and central part part Engineering 6 and bottom portion 18 can consist of shell members of one. Three housing portions adhere to one in the shape of seal by welding or soldering. An attachment franc / 20 are welded to bottom portion 18, in order to attach a Pressure a opportunity to the position which stood the compressor straight in the shape of perpendicular. Ah Si and the electric motor have stator 24 and rotor 26 with the electric motor which being allocated in housing 12 closed in the shape of seal showed the whole with numerals 22. @ rotor 26 on which stator 24 possesses winding 28 has central opening 30 provided in the inside, and franc Kusa and 7 32 are fixed by eye bundle Si The in the central opening. In order to connect electric motor 22 to a power supply, terminal cluster 34 is provided in central portion 16 of housing 12. Compressor 10 possesses oil sump 36 which has arranged the whole into bottom portion 18 again. It carries out, if centrifugal force oil capture tube 38 is Deleting Si in the lower end of crankshaft 32, and it is press Fit carried out into hole 40. Oil capture tube 38 has a paddle (not shown) of the shape of perpendicular [ which is a thing of an ordinary structure and was enclosed with Ah Si and an inside ]. Oil inlet end part 42 of capture tube 38 extends below in the opening end of cylindrical oil cap 44, and the cylindrical oil cap provides the quiet field where quality non-agitating oil is drawn. Compressor 10 possesses scroll compressor mechanism 46 stored in housing 12. Compressor mechanism 46 generally comprises fixed scroll member 48, swing scroll member 50, and main-guide-bearing frame member 52. the connoisseur who shows in Drawing 1 -- it is fixed to one and Si, fixed scroll member 48, and frame member 52 are attached to upper cover great 14 by the means of a plurality of mounting bolts 54. Exact consistency between fixed scroll part side 48 and frame member 52 is performed by one pair of locator pins 56. Frame member 52 possesses a plurality of attachment 1? Tsudo 58 which attached motor stator 24 to the means of a plurality of attachment ? Lut 60, and is made as [ be / between stator 24 and rotor 26 / an annular gap ]. Fixed scroll member 48 changes from plate 62 of a flat face to the whole target which has in poly 1-Fixed hook 7 degree64 prolonged in the direction of an axis from back 61, surface 63, and the surface 63. Similarly, swing scroll member 50 comprises Inge lute To turn prolonged in the direction of an axis from top surface 67 and the surface 67, and f68. Fixed scroll member 48 and swing scroll member 50 are assembled by one so that an operation is possible and fixed lap 64 and revolution lap 68 may fit in mutually. during operation of a compressor, if a fixed scroll member and a swing scroll member are subject to power in the direction of an axis which goes mutually, surface 63.67 and two grains 64.68 will be obtained, and they will be manufactured namely, machined so that the tip of A 64.68 may be engaged each surface 67.63 and letter of seal which counter. the connoisseur who shows in Drawing 1st [ the ] and 2 -- Ya and main-guide-bearing frame member 52 comprise bearing portion 70 prolonged below. The thing currently held in the bearing portion so that [ press Fit ] is an ordinary sleeve bearing assembly object which comprises top bearing 72 and lower bearing 74. long sleeve It's a bearing. Si single in order that two sleeve bearings may make easy the easy assembly to bearing portion 70, and in order to provide annular space 73 between two bearings 72.74 -- crankshaft 32 is supported movably preferably therefore rather, enabling free rotation in bearing 72j74. Crankshaft 32 possesses concentric thrust great 76 prolonged in the method of the outside of a radial direction from the side wall of crankshaft 32. Balance weight 77 is attached to thrust plate 76, for example with bolt 75. Eccentric crank mechanism 78 is installed by the upper part of crankshaft 32. If it depends on a suitable example, crank mechanism 78 comprises cylindrical roller 80 with the direction hole 81 of an axis which penetrates and extends at the place away from the center. Eccentric crankpin 82 which constitutes the top offset portion of crankshaft 32 is accepted in hole 81, and, thereby, roller 80 is supported movably by Round Si of eccentric crankpin 82 in the shape of eccentricity. Swing scroll member 50 possesses lower hub portion 84, and the lower hub portion forms cylindrical Well 85 which receives roller 80 in an inside. Roller 80 is supported movably so that it may rotate within Ranil 85 by sleeve bearing 86 by which it was press Fit carried out into Well 85. Each sleeve bearing 72 and 74.86 is bronze A of Steel back reliance, and Synge preferably. When crankshaft 32 rotates by motor 22, operation of eccentric crankpin 82 in Well 85 and roller 80 makes it circle in swing scroll member 50 to fixed scroll member 48. Low 282 is slightly rocked to Round Si of crankpin 80 so that it may act as a radial compliance mechanism of a swing link with ordinary Ri and rank mechanism 78 and the seal engaging of clutch between fixed lap 64 and revolution lap 68 may be urged. Swing scroll member 50 has the rotation in the circumference of the axis of itself prevented by the ordinary Oldham ring assembly object which comprises 90 and 92 versus the Oldham ring 88 relevant to swing scroll member 50 and frame member 52, and Oldhamuki 1, respectively. In operation of compressor 10 of good * Suitable embodiment, the refrigerant fluid in suction pressure power is introduced through suction pipe 94. The above-mentioned inhalation pipe is put into Acceptance in A hole 96 of top cover plate 14, and it is attached [ is ] like silver wax, i.e., soldering, to the upper cover great 14. Suction pressure power room 98 is formed in the whole of fixed scroll member 48 and frame member 52. Refrigerant fluid is introduced in A room 98 from suction tube 94 via suction passage 100 formed of the hole adjusted to top cover plate 14 and fixed scroll member 48. The sealing Japanese quince in which the refrigerant fluid in suction pressure power room 98 was formed of fixed Rack f64, To turn, and pro 8 when swing scroll member 50 was revolved. It is compressed into the method of the inside of a radial direction by moving A. obtain and the refrigerant fluid between As which is in discharge pressure in the pocket of an inner direction most should pass discharge port 102 which is open for free passage via field plate 62 of fixed scroll member 48 -- it is breathed out up. The compression refrigerant breathed out via port 102 invades into discharge vacant room 104 formed in the partial field of back 61, and the undersurface upper cover great [ 14 ] of circular hollow 105 arranged in the center. Duct 106 prolonged in the radial direction formed in top cover plate 14, and the direction extension duct 108 of an axis prolonged along with the flank of fixed scroll member 48 and frame member 52, The compression refrigerant of discharge vacant room 104 can be introduced in housing room 110 formed in housing 12. the connoisseur who shows in Drawing 2 -- Si and discharge tube 112 are penetrated and prolonged into central portion 16 of housing 12, and they are closed [ are ] like silver wax 114 there. It becomes possible to pressurize the chilled tofu in housing room 110 which should be conveyed with discharge tube 112 by the frozen system (not shown) incorporating compressor 10. Originally, although bending of field plate 62 which may occur as a result of the pressure difference between surface 63 and back 61 is eliminated on substance by providing discharge vacant room 104, it is put to the refrigerant fluid which has a partial field of back 61 in discharge pressure in this case. It is size method carried out of the circular hollow 105 of cover plate 14 to Yo Si details so that it may be established at back 61 and predetermined load distribution may be concentrated mainly in the center. Therefore, power of the lower part concerning field plate 62 distributed uniformly as a result, Upward power which increases to the method of the inside of the radial direction which occurs gradually at a compression pocket is made uniform on substance, and the pressure difference of the net covering plate 62 is generated as about 0 in the highest compressor operational status made into the state of the rated point of a compressor, i.e., the object, by that cause. as best illustrated to Drawing 1st [ the ] and 2, top cover plate 14 of housing 12 does not need other direct contact at all between a compressor mechanism and a housing further -- as the connoisseur as stated above who achieves the function to attach scroll compressor mechanism 46 in housing room 110 -- Si and bolt 54 attach frame member 52 and fixed scroll member 48 to top cover plate 14. Cover plate 14 possesses periphery lip 15 which engages with top annular edge 17 of central portion 16, in order to cover the upper opening formed on the annular edge 17. Cover great 14 is attached to central portion 16 in the shape of seal by the method of welding or others, in order to close Housing 12 in the shape of seal. If it is attached to central portion 16 in order that cover great 14 may form housing 12, compression i mechanism 46 is carried out under Hanging, and into housing room 110, it cannot extend below, and, as for the head of Lut, attachment is not in sight at all from the outside of a housing, or cannot enter. It will be expected that cover plate 14 which was explained about the suitable example shows some another advantages. In particular, cover plate 14 acts as a Endotherm object over the refrigerant fluid of the suction pressure power which progresses to suction Chu f94 through ON Si suction passage 100. Thus, the flowing refrigerant fluid receives a cooling action, in order to improve the capacity efficiency of a compressor. Cover great 14 as component parts of housing 12 can receive bending, without following a bad influence on the capability of that, in order to prevent bending of field plate 62. However, bending cover great [ 14 ] may be made to leak from suction passage 100 to discharge room 104 in the planate interface between the contact portions of cover great 14 and fixed scroll member 48. A gasket (not shown) can be allocated in the inside of the planate interface in the circumference of passage 100, and/or A room 104 and perimeter Round Si of duct 106 in order to prevent this leak. This gasket becomes useful to control the field of back 61 put to discharge pressure. Next, the 3~5th figure is referred to for still more detailed explanation cover great [ 14 ]. A plurality of great portions 13 which increased thickness in the direction of an axis are provided in Cover Great. Each portion 13 possesses at least one screw hole 53 for accepting the end with a screw of mounting bolt 54. Screw hole 53 is shown as what is not prolonged on the external surface of cover plate 14, and any possibilities that this will leak from high-pressure housing room 110 to the exterior of a housing, and a passage will be made prevent it. Next, while referring to Drawing 6.7 for another example of the present invention, it explains. Especially terminal cluster 34 is attached in hollow 19 of central partial 16' Yo Si straw-mat upper cover great 14'. The wiring harness possessing electrical connector 21 and wiring 23 is attached to the terminal pin of terminal cluster 34, and the electric conduction passage of the current to stator 24 of electric motor 22 is provided. Connector 21 of terminal cluster 34 and relation is allocated simple in duct 106 prolonged radially, and before wiring 23 goes into housing room 110 in that case, it connects with winding 28 of stator 24 at Extend and housing room 110 through duct 108 prolonged in duct 106 and the direction of an axis. Another example of the 6th the 7 figure has the feature in an assembly method, and explains the compressor according to one mode of the present invention below per this example. How to assemble the scroll compressor according to one mode of the present invention, The structure which is explained to be top cover plate 14 here and which arises as a result is included, especially cover plate 14 is, Before compressor mechanism 46 is inserted in the inside of no Uzing and Cover Great is attached to the remaining Knowing shell, it makes it possible to assemble compressor mechanism 46 completely and to attach to cover plate 14. cover plate 14 is provided in the suitable method of assembling compressor 10 -- compressor mechanism 46 -- a connoisseur as stated above -- it is attached to cover great 14 so that the Si side plate 62 may touch cover plate 14. When attaching to cover plate 14, compressor mechanisms 46 including a setup of the opening between stator 24 and rotor 26 can already be assembled completely. next, the connoisseur who the shell upright in the shape of [ with an upper opening ] perpendicular is provided, and shows the shell to a drawing -- Si central portion 16 and bottom portion 18 are comprised, or it is solid construction. Finally, a top cover plate and the assembly object of a compressor mechanism are attached to the upper opening in the shape of seal while top cover plate 14 covers the upper opening of housing shell, and also they are attached to Remaining Si's housing so that compressor mechanism 46 may be prolonged below inside a housing. Noise is prevented from attention being paid so that it may carry out under Hanging from top cover plate 14 and any of other portions of housing 12 may not be contacted, and spreading compressor mechanism 46 in a housing from a compressor mechanism by that cause when attaching cover plate 14 to central portion 16. The above-mentioned assembly method changes slightly about the example of the 1~5th figure, and the example of the 6*7th figure. When assembling the compressor of the 1~5th figure, connector 21 of the wiring harness of stator 24 must be connected to terminal cluster 34 in which the length of wiring 23 was allocated by central portion 16 during the period which inserts a compressor mechanism in connection into a housing as leg Si To. Before the assembly of the compressor of the 6th the 7 figure inserts a compressor mechanism in a housing as contrasted with it, it is possible to connect connector 21 to terminal cluster 34 allocated in top cover plate 14'. It is possible to connect with a power supply in advance of the last assembly for an easy test, and not foolish Si that positions a terminal cluster [ in / in the method of assembling the compressor of the 6th the 7 figure / a top cover plate ] as it is easy but a compressor mechanism is Really.

[Brief Description of the Drawings]

Drawing 1 is a longitudinal section of the compressor of the kind relevant to the present invention, and is a figure seen in the direction of an arrow along line 1~1 in Drawing 3. Drawing 2 is a longitudinal section of the compressor of Drawing 1, and is a figure seen in the direction of an arrow along line 2~2 in Drawing 3. In the enlarged top view of Drawing 1, Drawing 3 is Ah Si and Drawing 4 is an expansion bottom view of top Cover Great of the compressor of Drawing 1. Drawing 5 is a longitudinal section of the top cover plate of the compressor of Drawing 1, and is a figure seen in the direction of an arrow along line 5~5 in Drawing 4. In Ah Si and this another example, a terminal cluster is attached to a top cover plate in the figure which Drawing 6 follows another example of the present invention, and was seen in the direction of an arrow along line 6~6 in Ah Si and Drawing 7 with the longitudinal section of the compressor of Drawing 1, and the same scrolled type compressor. The reference mark used for Drawing 6.7 is the same as that of what was used for the 1~5th figure in the case of the same component parts, and, in the case of the component parts changed according to Ah Si and another example, prime numerals are given to it. Drawing 7 is an enlarged top view of the compressor of Drawing 6. □ - Under [ = ] F.