CN1611779A - Sealed compressor vane - Google Patents

Abstract

The blade of closed compressor the following parts: cylinder block with inner space, division boards, which divide the above-mentioned inner space into more than one closed space and can circumvolve in relation to cylinder block and remove the secondary refrigerant in every closed space, more than one blade, which can slide in the condition of contacting with the division boards, truncate the flow of secondary refrigerant in every closed space and compress the secondary refrigerant, and spring attachment groove, which can let the blade make reciprocating motion up and down with the circumvolving of the division boards together with the upper end of the elastic support in the closed compressor and connects with the end of the leaf spring and whose width becames more and more small with the increase of the depth of the groove. The blade of closed compressor in the invention is adaptable to various leaf spring, not only can prevent the shake of the leaf spring in the spring attachment groove, but also can fix the blade and thus increase the efficiency and reliability of the compressor.

Description

The blade of closed compressor

Technical field

The present invention relates to a kind of dividing plate that utilizes the inner space of cylinder is divided into the blade of the closed compressor of a plurality of confined spaces, particularly relate to a kind of blade that makes a kind of blade be applicable to the closed compressor of different size leaf spring.

Background technique

Usually, vane compressor is to compress on a kind of solid of rotation the inner space of cylinder to be divided into the blade that sucks zone and constricted zone, can make when solid of rotation is rotated to suck the zone and constricted zone replace mutually continuously, thereby refrigerant be sucked, compresses and the closed compressor of discharge.Fig. 1 is a compression mechanical portion longitudinal construction sectional view in the vane compressor of prior art.As shown in Figure 1, the vane compressor of this prior art is to be made of electromechanical part and compression mechanical portion.Electromechanical part is to be made of inside upper part that is arranged on shell 1 and the stator Ms and the rotor Mr that can produce power.Compression mechanical portion then is arranged on the bottom of electromechanical part, and it is connected with rotor Mr, thereby finishes suction, compression and the discharging operation of refrigerant.Compression mechanical portion comprises: cylinder 2, upper bearing 3A, lower bearing 3B, bent axle 4, dividing plate 5, the first blade 6A, the second blade 6B, leaf spring 7, top baffler 8A and bottom baffler 8B.Cylinder 2 is fixed on the lower inside of shell 1, has the inner space V that can suck with compression refrigerant in it.Upper bearing 3A and lower bearing 3B be combined in respectively the top of cylinder 2 and below, thereby and cylinder 2 constitute cylinder assembly together.Bent axle 4 is combined on the rotor Mr of electromechanical part, and it runs through upper and lower part bearing 3A, the center of 3B, thus give compression mechanical portion with the transmission of power of electromechanical part.The dividing plate 5 that the inner space V of cylinder 2 can be divided into the first pressing chamber S1 and the second pressing chamber S2 can be combined on the bent axle 4 or be integrally formed with bent axle 4, its up and down two ends Qu Jun be sine wave shape.The lower end of the first blade 6A and the second blade 6B contacts with two end curved surfaces up and down of dividing plate 5 respectively, thereby when bent axle 4 rotations the first pressing chamber S1 and the second pressing chamber S2 is divided into suction zone and constricted zone.Leaf spring 7 is made of torque spring, and its two ends support the first blade 6A and the second blade 6B respectively.Top baffler 8A and bottom baffler 8B are separately positioned on the outside of upper bearing 3A and lower bearing 3B, thereby can reduce the noise of the pressurized gas of discharging from the first pressing chamber S1 and the second pressing chamber S2.First, second blade 6A, 6B slides and is inserted in not shown upper and lower part bearing 3A, in the blade groove of the last setting of 3B.Fig. 2 is the blade structure stereogram of prior art.As shown in Figure 2, the blade body 6a of this prior art, 6a is the cylindrical shape with certain diameter, observe from the side, on it with the contacted surface of contact 6b of waveform curved surface of dividing plate 5,6b is the semicircle curved surface with certain curvature, then is formed with the spring fixed groove 6c that can insert leaf spring 7 terminal parts on its upper-end surface, 6c.Spring fixed groove 6c, 6c are along blade body 6a, and the diametric(al) of 6a is offered, and its sectional shape is a rectangle.Unaccounted symbol 2a is a suction port among the figure, and SP is a suction pipe.Vane compressor working procedure with as above structure is as follows: when making rotor Mr rotation when electromechanical part is connected power supply, the bent axle 4 and the dividing plate 5 that are combined on the rotor Mr also can together be rotated, contact respectively this moment at dividing plate first, second blade 6A on the both ends of the surface about in the of 5,6B can move back and forth along the vertical direction along with the rotation of dividing plate 5, thereby change the volume of the cylinder 2 interior first pressing chamber S1 and the second pressing chamber S2, and suck new refrigerant continuously by the suction pipe SP that is positioned at cylinder 2 one sides.In the rotary course of dividing plate 5, the refrigerant of suction is compressed gradually, alternately discharges by not shown exhaust port separately then.As mentioned above, the first blade 6A and the second blade 6B are contacted with two end curved surfaces up and down of dividing plate 5, it can move along the vertical direction during dividing plate 5 rotations, and the first blade 6A and the second blade 6B are by the two ends elastic support of leaf spring 7, thereby it can be pushed back the origin-location.But, as shown in Figure 3, because the upper-end surface of the interior first blade 6A of this vane compressor and the second blade 6B all has the identical spring fixed groove 6c of width up and down, 6c, when adopting the bigger leaf spring 7 of diameter, also need to change the corresponding first blade 6A and the second blade 6B.In addition, as first, second blade 6A, when 6B upper spring fixed groove 6c, the width of 6c were bigger than the diameter of leaf spring 7, leaf spring 7 will be at spring fixed groove 6c, produced in the 6c and rocked, thereby cause the action shakiness of blade.

Summary of the invention

In order to address the above problem, to the object of the present invention is to provide a kind of specification irrelevant, and can stably support the blade of the closed compressor of blade with leaf spring.

In order to achieve the above object, the blade of closed compressor provided by the invention is arranged on mainly by having the suction port that is interconnected and exhaust port and being formed with the cylinder assembly of inner space; The inner space of cylinder assembly can be divided at least more than one confined space, cylinder assembly is rotated the also dividing plate of the interior refrigerant of removable each confined space relatively; Can with the dividing plate state of contact under slide and can block flowing of refrigerant in each confined space, thereby at least more than one the blade that refrigerant is compressed; But in the closed compressor of forming with the upper end of elastic support blade and leaf spring that blade is moved back and forth along the vertical direction with the rotation of dividing plate, be formed with on the described blade upper-end surface and can contact with the terminal part of leaf spring and spring fixed groove that the width in its cross section diminishes gradually with the increase of groove depth.

The blade of closed compressor provided by the invention be with the contacted blade of the terminal part of leaf spring upper-end surface on form the spring fixed groove that cross-sectional width diminishes gradually, a kind of like this blade is just applicable to the leaf spring of plurality of specifications, rock but also can prevent that leaf spring from producing in the spring fixed groove, and then can fix blade, thereby can improve the efficient and the reliability of compressor.

Description of drawings

Be elaborated below in conjunction with the blade of the drawings and specific embodiments to closed compressor of the present invention.

Fig. 1 is a compression mechanical portion longitudinal construction sectional view in the vane compressor of prior art.

Fig. 2 is the blade structure stereogram of prior art.

Fig. 3 is blade and a leaf spring bonding state side schematic view in the vane compressor of prior art.

Fig. 4 is a compression mechanical portion longitudinal construction sectional view in the vane compressor provided by the invention.

Fig. 5 is a blade structure stereogram in the vane compressor provided by the invention.

Fig. 6 is blade provided by the invention and leaf spring bonding state side schematic view.

Fig. 7 is the spring fixed groove and the blade bonding state schematic representation of another kind of structure provided by the invention.

Embodiment

As shown in Figure 4 to 7, the compression mechanical portion in the vane compressor provided by the invention comprises: cylinder 2, upper bearing 3A, lower bearing 3B, bent axle 4, dividing plate 5, first blade 11, second blade 12 and leaf spring 7.Cylinder 2 is fixedly installed on the inside of shell shown in Figure 11.Upper bearing 3A and lower bearing 3B cover the place's opening of two ends up and down of cylinder 2 respectively and form cylinder assembly together.Bent axle 4 runs through and is combined in upper and lower part bearing 3A, the center of 3B, thus the rotating force of electromechanical part can be passed to compression mechanical portion.Dividing plate 5 for have certain thickness and up and down both ends of the surface all be sine-shaped disc-shape, it is combined on the bent axle 4, and can with the contacted state of the inner peripheral surface of cylinder 2 under be rotated, thereby the inner space V of cylinder 2 is divided into the first pressing chamber S1 and the second pressing chamber S2.One end of first blade 11 and second blade 12 contacts respectively on the both ends of the surface up and down of dividing plate 5, thereby can block moving of refrigerant.But leaf spring 7 elastic support, first blade 11 and second blade 12.First, second blade 11,12 for having the cylindrical shape of certain diameter, blade body 11a on it, 12a can slide respectively and be inserted in not shown upper and lower part bearing 3A, in the blade groove on the 3B, and as shown in Figure 5, observe from the side, can with the contacted dividing plate surface of contact of the waveform curved surface 11b of dividing plate 5,12b is the semicircle curved surface with certain curvature, then be formed with the spring fixed groove 11c that can insert leaf spring 7 terminal parts on its upper-end surface, 12c.As shown in Figure 5 and Figure 6, spring fixed groove 11c, 12c are along blade body 11a, and the diametric(al) of 12a is offered, and its cross section is to have the wedge shape that certain depth and bi-side inclination several angle form.In addition, this spring fixed groove 11c, 12c is with blade body 11a, and the side center line of 12a forms for the benchmark bilateral symmetry, and its upper end is best on the edge, upper-end surface of 12a to be formed on blade body 11a.In addition, as shown in Figure 7, spring fixed groove 11c, stepped that the increase width with groove depth diminishes gradually also can be offered in the cross section of 12c, or not shown multiple shapes such as semiellipse.Working procedure with as above vane compressor provided by the invention of structure is as follows: when making bent axle 4 rotations when electromechanical part is connected power supply, the dividing plate 5 that is combined on the bent axle 4 will be rotated at the inner space of cylinder 2 V, alternately sucks refrigerant by suction port 2a in the first pressing chamber S1 and the second pressing chamber S2 simultaneously.Continue in the process of rotation at dividing plate 5, the refrigerant of suction is compressed at the first pressing chamber S1 and the second pressing chamber S2 earlier, alternately discharges by the exhaust port of the first not shown pressing chamber S1 and the second pressing chamber S2 then.The upper-end surface of first blade 11 and second blade 12 is supported by leaf spring 7, and first blade 11 and second blade 12 can pump vertically when dividing plate 5 rotations.If it is former thereby need to change leaf spring 7 because of the reliability trial of compressor or machining error etc., the wedge shape spring fixed groove 11c that new leaf spring 7 can be inserted on first blade 11 and second blade 12, in the 12c, if the diameter of leaf spring 7 is less, it will be positioned at spring fixed groove 11c, the lower side of 12c, and diameter then is positioned at spring fixed groove 11c when big, the upside of 12c, a kind of like this blade are just applicable to the leaf spring of plurality of specifications.In addition, leaf spring 7 can also be close to spring fixed groove 11c, on the bi-side of 12c, thereby can prevent that leaf spring 7 is at spring fixed groove 11c, produce in the 12c and rock, and then fix first blade 11 and second blade 12, thereby can improve the efficient and the reliability of compressor.

Claims (5)

1. the blade of a closed compressor is arranged on mainly by having the suction port that is interconnected and exhaust port and being formed with the cylinder assembly of inner space (V); The inner space (V) of cylinder assembly can be divided at least more than one confined space, cylinder assembly is rotated the also dividing plate (5) of the interior refrigerant of removable each confined space relatively; Can with dividing plate (5) state of contact under slide and can block the mobile of refrigerant each confined space in, thereby at least more than one the blade (11,12) that refrigerant is compressed; But with elastic support blade (11,12) upper end also can make blade (11,12) in the closed compressor that the leaf spring (7) that moves back and forth along the vertical direction with the rotation of dividing plate (5) is formed, it is characterized in that: described blade (11,12) be formed with on the upper-end surface can contact with the terminal part of leaf spring (7) and spring fixed groove that the width in its cross section diminishes gradually with the increase of groove depth (11c, 12c).

2. the blade of closed compressor according to claim 1, it is characterized in that: (11c is that (11a, side center line 12a) is that benchmark is symmetrical with blade body 12c) to described spring fixed groove.

3. the blade of closed compressor according to claim 2, it is characterized in that: (11c, bi-side 12c) are to form with certain angle tilt to described spring fixed groove.

4. the blade of closed compressor according to claim 2, it is characterized in that: (11c, bi-side 12c) form stepped described spring fixed groove.

5. according to the blade of each described closed compressor in the claim 1 to 4, it is characterized in that: described leaf spring (7) is a torque spring.

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