CN203742949U - Bidirectional variable-displacement swash plate compressor - Google Patents
Bidirectional variable-displacement swash plate compressor Download PDFInfo
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- CN203742949U CN203742949U CN201320891462.8U CN201320891462U CN203742949U CN 203742949 U CN203742949 U CN 203742949U CN 201320891462 U CN201320891462 U CN 201320891462U CN 203742949 U CN203742949 U CN 203742949U
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- valve body
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- bypass passageways
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- valve
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Abstract
The utility model provides a bidirectional variable-displacement swash plate compressor compact in layout. The compressor comprises a rotating spindle, a cylinder body, cylinder heads, a swash plate driven by the spindle to rotate and multiple pistons driven by the swash plate to reciprocate. Multiple cylinder holes allowing the pistons to reciprocate and a center hole used for mounting the spindle are formed at each end of the cylinder body. The cylinder holes are provided with a bypass passage used for adjusting displacement. The compressor is further provided with an electronic control valve, and the electronic control valve is used for opening or closing the bypass passage and comprises a valve body and a driving part driving the valve body to move. The compressor has the advantages that the bypass passage is lead out from the cylinder holes to the center holes and extends into the cylinder heads from the center holes, the electronic valve is arranged in the bypass passage, and the valve body of the electronic valve can move in the bypass passage so as to close or open the bypass passage between the cylinder holes and the center holes, so that the entire bypass passage is closed or opened.
Description
Technical field
The utility model relates to compressor, especially two-way displacement-variable swashplate compressor.
Background technique
Japanese documentation JP2001-234854 discloses a kind of adjustable bi-directional swash plate type compressor.Fig. 7 shows the part-structure of this bi-directional swash plate type compressor.As shown in Figure 7, electrically-controlled valve 72 is for handling a plunger 52, and this electrically-controlled valve is introduced pressure of inspiration(Pi) L or exhaust pressure H by connecting passage 68,70 in plunger cavity, with this, plunger 52 is moved axially.This plunger 52 remakes for exhaust valve plate 50, make its in the axial direction occurrence positions change, when exhaust valve plate 50 is during in normally open position, corresponding piston cannot compress gas, this cylinder, without discharge capacity, passes through the discharge capacity of the position-adjustable compressor that regulates exhaust valve plate 50 thus.
One of purpose of design of bi-directional swash plate type compressor is exactly to make compressor volume less, but the structure such as electrically-controlled valve, plunger is in the prior art usually placed in outside cylinder head, therefore takes up room larger, makes above-mentioned prior art practicability not strong.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of oblique tray type compressor, its compact in design.
For solving the problems of the technologies described above, the utility model provides a kind of two-way displacement-variable swashplate compressor, comprise rotary main shaft, cylinder block, cylinder head, by the swash plate of main shaft driven rotary and driven and reciprocating multiple pistons by swash plate, the two ends of cylinder block are equipped with for multiple cylinder-bore of the plurality of reciprocating motion of the pistons and for the center hole of main shaft is installed, described cylinder-bore has the bypass passageways for Displacement Regulation, this compressor also has electrically-controlled valve, the driver part of this electrically-controlled valve for closing or open this bypass passageways and comprising valve body and drive valve body to move, be characterized in, this bypass passageways is drawn and is arrived this center hole from cylinder-bore, and extend to cylinder head from this center hole, described electrically-controlled valve is arranged in this bypass passageways, the valve body of described electrically-controlled valve can be movable in this bypass passageways, to close or to open this cylinder-bore to the bypass passageways between this center hole, thereby make whole bypass passageways close or open.
In the preferred version of described two-way displacement-variable swashplate compressor, described bypass passageways is connected cylinder-bore and exhaust cavity or air aspiration cavity or crankshaft cavity.
In the preferred version of described two-way displacement-variable swashplate compressor, described bypass passageways comprise be positioned at cylinder block end and be positioned at described center bore groove and dimple laterally, groove is with respect to dimple radially more in the outer part, and groove is that this cylinder-bore is to the bypass passageways between this center hole; Dimple can hold described valve body, the driver part of electrically-controlled valve is arranged in cylinder head, driver part comprises field coil, static iron core and moving iron core, between moving iron core and valve body, connect by valve rod, the excitation of field coil can make to interact between static iron core and moving iron core, thereby make iron core drive valve gap, valve body to move, described valve body provides connecting passage, the part that this connecting passage is this bypass passageways.
In the preferred version of described two-way displacement-variable swashplate compressor, described driver part is arranged in the air aspiration cavity in cylinder head.
In the preferred version of described two-way displacement-variable swashplate compressor, described bypass passageways comprise be positioned at cylinder block end and be positioned at described center bore groove and dimple laterally, groove is with respect to dimple radially more in the outer part, and groove is that this cylinder-bore is to the bypass passageways between this center hole; Dimple can hold described valve body, the driver part of electrically-controlled valve is arranged in cylinder head, and driver part is electric rotating machine, between the rotor of electric rotating machine and valve body, connects by valve rod, described valve body provides connecting passage, this connecting passage is a part for this bypass passageways, and valve body is profile of tooth, has the vacancy portion between tooth portion and two tooth portions, this groove is aimed at by tooth portion, to close described bypass passageways, this valve body can also be driven so that this groove is aimed at by vacancy portion by electric rotating machine, to open described bypass passageways.
In the preferred version of described two-way displacement-variable swashplate compressor, the quantity of the quantity of tooth portion of valve body and the cylinder-bore of the end of cylinder block equates, and can aim at correspondingly or stagger.
In the preferred version of described two-way displacement-variable swashplate compressor, described bypass passageways comprises and is positioned at the described center hole of connection of cylinder block end and the attachment hole of cylinder-bore, center hole can hold described valve body, the driver part of electrically-controlled valve is arranged in cylinder head, driver part is electric rotating machine, between the rotor of electric rotating machine and valve body, connect by valve rod, described valve body provides connecting passage, this connecting passage is a part for this bypass passageways, valve body is tubular, the cylindrical shell side opening of valve body is provided with through hole, this through hole and this attachment hole stagger, to close described bypass passageways, this valve body can also be driven so that this attachment hole of this through-hole alignment by electric rotating machine, to open described bypass passageways.
In the preferred version of described two-way displacement-variable swashplate compressor, the quantity of this through hole of valve body equates with the quantity of the cylinder-bore of the end of cylinder block, and can aim at correspondingly or stagger.
Aforementioned automatically controlled valve arrangement is simple and be embedded in the middle section originally just existing, and does not take unnecessary space.
Brief description of the drawings
The above and other feature of the present utility model, character and advantage are by by becoming more obvious below in conjunction with the description of drawings and Examples, wherein:
Fig. 1 is the utility model embodiment 1 compressor sectional view;
Fig. 2 is the sectional view along the A-A line of Fig. 1;
Fig. 3 is the compressor partial sectional view under the bypass passageways open mode in embodiment 1;
Fig. 4 is the utility model embodiment 2 compressor partial sectional view;
Fig. 5 is the partial sectional view along the B-B line of Fig. 4;
Fig. 6 is the utility model embodiment 3 compressor sectional view;
Fig. 7 is the compressor partial sectional view of prior art.
Embodiment
Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail; set forth in the following description more details so that fully understand the utility model; but the utility model obviously can be implemented with the multiple alternate manner that is different from this description; those skilled in the art can do similar popularization, deduction according to practical situations without prejudice to the utility model intension in the situation that, therefore should be with the content constraints of this specific embodiment protection domain of the present utility model.
Fig. 1 to Fig. 6 has shown preferred three embodiments of the utility model; it should be noted that; these and follow-up other accompanying drawing are all only as example, and it is not to draw according to the condition of equal proportion, and should be using this as the protection domain of the utility model actual requirement is construed as limiting.
Embodiment 1
The sectional view for the existing bi-directional swash plate type compressor of Vehicular air-conditioning apparatus as shown in Figure 1.There is cylinder block 1, form crankshaft cavity 2.Live axle 3 is rotatably mounted in the mesopore (center hole) 4 of cylinder block 1, and live axle 3 runs through swash plate 5, forward thrust bearing 6, back pressure bearing 7, and the two ends of thrust-bearing 6,7 are supported by cylinder block 1 respectively.Two cylinder head 8,9 are provided with air aspiration cavity 10 and exhaust cavity 11 respectively.When live axle 3 drives swash plate 5 to rotate, the multiple pistons 12 on swash plate 5 are reciprocating, and refrigeration agent is sucked to cylinder-bore 13, will after refrigerant compression, discharge cylinder-bore 13.
Plate member is the control mechanism of the gas of compression cylinder hole suction and the gas of discharge, and plate member is arranged on the end of cylinder block 1, comprises valve plate 14, suction valve chip 15, exhaust valve plate 16.Valve plate 14 is provided with multiple suction ports 17 and exhaust port 18, and suction valve chip 15 is positioned at the cylinder side of valve plate 14, and in the time that piston 12 is up, suction valve chip 15 is opened suction port 17, makes cylinder-bore 13 suck gas; Gas in the time that piston 12 is descending in compression cylinder hole 13, suction valve chip 15 is closed suction port 17, through the pressurized gas of overcompression, the exhaust valve plate 16 of the opposition side that is positioned at suction valve chip 15 is opened simultaneously, and the gas in cylinder-bore 13 is discharged.
As depicted in figs. 1 and 2, offer the groove 30 radially extending in the end of cylinder block 1, cylinder-bore 13 and mesopore 4 are connected.
Electrically-controlled valve comprises solenoid 20, and solenoid 20 comprises field coil 27, and field coil 27 centers are fixed with static iron core 28, and static iron core 28 rears are provided with moving iron core 29, and in the time that field coil 27 carries out excitation, static iron core 28 attracts moving iron core 29 to move forward.Moving iron core 29 is fixed in valve rod 22 one end with connecting passage 21, and the other end and annular valve body 26 fix.Connecting passage 21 is communicated with mesopore 4 with air aspiration cavity 10.
Groove 30, mesopore 4, connecting passage 21 form the bypass passageways between cylinder-bore 13 and air aspiration cavity 10.Cylinder block 1 is offered the circular dimple 31 that holds valve body 26 in mesopore 4 ends, groove 30 is positioned at the radial outside of dimple 31.
When electrically-controlled valve energising, when the moving iron core 29 of solenoid 20 and static iron core 28 adhesive, valve body 26 travels forward (in Fig. 1 left), and the inner space of the dimple 31 of groove 30 radially inner sides is filled up, so that described bypass passageways is closed, compressor is with maximum discharge capacity operation.As shown in Figure 3, when electrically-controlled valve power-off, moving iron core 29 and static iron core 28 are thrown off, and valve body 26 move (in Fig. 3 to the right) backward, and groove 30 is opened, and described bypass passageways is opened, and compressor moves with minimum discharge capacity.
Embodiment 1 electrically-controlled valve is simple in structure and be embedded in the middle section originally just existing, and does not take unnecessary space.
Embodiment 2
The present embodiment is continued to use element numbers and the partial content of previous embodiment, wherein adopts identical label to represent identical or approximate element, and has optionally omitted the explanation of constructed content.Explanation about clipped can be with reference to previous embodiment, and it is no longer repeated for the present embodiment.
As shown in Figure 4, Figure 5, be to replace solenoid with electric rotating machine 23 with embodiment 1 difference, motor 23 comprises stator 24 and rotor 25, and valve rod 22 one end and rotor 25 are fixing; And change valve body 26 into profile of tooth, comprise the 26B of vacancy portion between the 26A of tooth portion and two 26A of tooth portion, the number of teeth equates with the quantity of the cylinder-bore 13 of every end, makes described bypass passageways corresponding to each cylinder-bore occur bypass simultaneously or close.
Electric motor starting, valve body 26 rotates in dimple 31, when the 26A of tooth portion alignment indentation 30, closes bypass passageways, and compressor is with maximum discharge capacity operation; Vacancy 26B is to preparing when groove 30, and bypass passageways is opened, and compressor displacement reduces.
Embodiment 3
As shown in Figure 6, be to change valve body 26 into tubular valve body with embodiment's 2 differences, valve body 26 side openings are provided with the through hole 26C equating with the cylinder hole count of every end.Groove 30 in cylinder block 1 changes the attachment hole 32 that connects cylinder-bore 13 and mesopore into.
Motor 23 starts, and valve body 26 rotates in mesopore, when through hole 26C aims at attachment hole 32, opens bypass passageways, and compressor is with less discharge capacity operation; Other time move with maximum pump discharge.
The bypass passageways of enumerating in above-described embodiment is that cylinder-bore 13 is connected with air aspiration cavity 10, and in fact, bypass passageways can be also that cylinder-bore is connected with exhaust cavity 11 or crankshaft cavity 2, and its result all can cause cylinder-bore by bypass or close, and effect is similar.
Although the utility model with preferred embodiment openly as above, it is not for limiting the utility model, and any those skilled in the art, not departing from spirit and scope of the present utility model, can make possible variation and amendment.Therefore, every content that does not depart from technical solutions of the utility model, any amendment, equivalent variations and the modification above embodiment done according to technical spirit of the present utility model, within all falling into the protection domain that the utility model claim defines.
Claims (8)
1. two-way displacement-variable swashplate compressor, comprise rotary main shaft, cylinder block, cylinder head, by the swash plate of main shaft driven rotary and driven and reciprocating multiple pistons by swash plate, the two ends of cylinder block are equipped with for multiple cylinder-bore of the plurality of reciprocating motion of the pistons and for the center hole of main shaft is installed, described cylinder-bore has the bypass passageways for Displacement Regulation, this compressor also has electrically-controlled valve, the driver part of this electrically-controlled valve for closing or open this bypass passageways and comprising valve body and drive valve body to move, it is characterized in that, this bypass passageways is drawn and is arrived this center hole from cylinder-bore, and extend to cylinder head from this center hole, described electrically-controlled valve is arranged in this bypass passageways, the valve body of described electrically-controlled valve can be movable in this bypass passageways, to close or to open this cylinder-bore to the bypass passageways between this center hole, thereby make whole bypass passageways close or open.
2. two-way displacement-variable swashplate compressor as claimed in claim 1, is characterized in that, described bypass passageways is connected cylinder-bore and exhaust cavity or air aspiration cavity or crankshaft cavity.
3. two-way displacement-variable swashplate compressor as claimed in claim 1, it is characterized in that, described bypass passageways comprise be positioned at cylinder block end and be positioned at described center bore groove and dimple laterally, groove is with respect to dimple radially more in the outer part, and groove is that this cylinder-bore is to the bypass passageways between this center hole; Dimple can hold described valve body, the driver part of electrically-controlled valve is arranged in cylinder head, driver part comprises field coil, static iron core and moving iron core, between moving iron core and valve body, connect by valve rod, the excitation of field coil can make to interact between static iron core and moving iron core, thereby make iron core drive valve gap, valve body to move, described valve body provides connecting passage, the part that this connecting passage is this bypass passageways.
4. two-way displacement-variable swashplate compressor as claimed in claim 3, is characterized in that, described driver part is arranged in the air aspiration cavity in cylinder head.
5. two-way displacement-variable swashplate compressor as claimed in claim 1, it is characterized in that, described bypass passageways comprise be positioned at cylinder block end and be positioned at described center bore groove and dimple laterally, groove is with respect to dimple radially more in the outer part, and groove is that this cylinder-bore is to the bypass passageways between this center hole; Dimple can hold described valve body, the driver part of electrically-controlled valve is arranged in cylinder head, and driver part is electric rotating machine, between the rotor of electric rotating machine and valve body, connects by valve rod, described valve body provides connecting passage, this connecting passage is a part for this bypass passageways, and valve body is profile of tooth, has the vacancy portion between tooth portion and two tooth portions, this groove is aimed at by tooth portion, to close described bypass passageways, this valve body can also be driven so that this groove is aimed at by vacancy portion by electric rotating machine, to open described bypass passageways.
6. two-way displacement-variable swashplate compressor as claimed in claim 5, is characterized in that, the quantity of the quantity of tooth portion of valve body and the cylinder-bore of the end of cylinder block equates, and can aim at correspondingly or stagger.
7. two-way displacement-variable swashplate compressor as claimed in claim 1, it is characterized in that, described bypass passageways comprises and is positioned at the described center hole of connection of cylinder block end and the attachment hole of cylinder-bore, center hole can hold described valve body, the driver part of electrically-controlled valve is arranged in cylinder head, driver part is electric rotating machine, between the rotor of electric rotating machine and valve body, connect by valve rod, described valve body provides connecting passage, this connecting passage is a part for this bypass passageways, valve body is tubular, the cylindrical shell side opening of valve body is provided with through hole, this through hole and this attachment hole stagger, to close described bypass passageways, this valve body can also be driven so that this attachment hole of this through-hole alignment by electric rotating machine, to open described bypass passageways.
8. two-way displacement-variable swashplate compressor as claimed in claim 7, is characterized in that, the quantity of this through hole of valve body equates with the quantity of the cylinder-bore of the end of cylinder block, and can aim at correspondingly or stagger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320891462.8U CN203742949U (en) | 2013-12-31 | 2013-12-31 | Bidirectional variable-displacement swash plate compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320891462.8U CN203742949U (en) | 2013-12-31 | 2013-12-31 | Bidirectional variable-displacement swash plate compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742949U true CN203742949U (en) | 2014-07-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320891462.8U Expired - Fee Related CN203742949U (en) | 2013-12-31 | 2013-12-31 | Bidirectional variable-displacement swash plate compressor |
Country Status (1)
| Country | Link |
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| CN (1) | CN203742949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443387A (en) * | 2014-08-28 | 2016-03-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Bypass mechanism and compressor |
-
2013
- 2013-12-31 CN CN201320891462.8U patent/CN203742949U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443387A (en) * | 2014-08-28 | 2016-03-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Bypass mechanism and compressor |
| CN105443387B (en) * | 2014-08-28 | 2017-03-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Bypass mechanism and compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Shanghai City 200025 Madang Road No. 347 Patentee after: SANDEN HUAYU AUTOMOTIVE AIR-CONDITIONING CO., LTD. Address before: 200025 Shanghai city Xuhui District Madang Road No. 347 Patentee before: Sandian Beier Automobile Air-Conditioner Co., Ltd., Shanghai |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20171231 |