CN114382676A - Reciprocating confronting compressing device - Google Patents

Abstract

The invention discloses a reciprocating confronting compression device, which comprises a shell and a power structure arranged in the shell; the shell comprises an upper shell and a lower shell which are connected and fastened with each other, the upper shell and the lower shell are both convexly provided with a compression cavity, the outer side end of the compression cavity is an air chamber, and the air chamber is provided with an air inlet and an air outlet; the power structure comprises a hard shaft rod body, an inner cylinder body, an outer cylinder body and a coil assembly which are arranged from inside to outside; the upper side and the lower side of the shaft rod body are connected with a piston head; the outer cylinder body is a magnetic outer cylinder body and is of an open structure, the outer cylinder body is sleeved on the outer side of the inner cylinder body, and the piston head is in contact sealing in the compression cavity. The compression device adopts a linear driving mode, integrates the rotor structure, reduces the volume of the driving structure, and effectively avoids friction and improves the motor efficiency because the central shaft of the whole power structure is positioned by adopting the plate springs at two sides and the movement track is fixed, thereby having high compression efficiency, small volume and good silencing effect.

Description

Reciprocating confronting compressing device

Technical Field

The invention relates to the field of compressors, in particular to a reciprocating opposite compression device.

Background

In all energy consumption, the energy consumption of the building industry accounts for 20-30%, wherein the energy consumption of the air-conditioning heating and refrigerating system accounts for 50-60% of the energy consumption of the building industry. The compressor is used as a key part of an air-conditioning heating and refrigerating system, and accounts for 70-80% of the duty ratio of the heating and refrigerating system.

Reciprocating compressors are positive displacement compressors in which a certain volume of gas is sequentially sucked into and discharged from a closed space to increase a static pressure.

The reciprocating compressor is widely applied at present, the design of the central shaft as an important component of the reciprocating compressor in the reciprocating motion process is particularly important, and the driving mode is related.

Therefore, it is desirable to provide a novel compressor structure that avoids frictional losses and improves the overall efficiency of the compressor.

Disclosure of Invention

In order to solve the problems, the invention provides a reciprocating confronting compression device, which integrates a rotor structure by adopting a linear driving mode, reduces the volume of the driving structure, effectively avoids friction and improves the motor efficiency by adopting a double-side plate spring for positioning a central shaft and fixing a motion track in the whole power structure, thereby having high compression efficiency, small volume and good silencing effect.

In order to achieve the purpose, the invention adopts the technical scheme that: a reciprocating confronting compression device comprises a shell and a power structure arranged in the shell;

the shell comprises an upper shell and a lower shell which are connected and fastened with each other, the upper shell and the lower shell are both convexly provided with compression cavities, the outer side ends of the compression cavities are air chambers, valve plate structures for air inlet and outlet are arranged between the air chambers and the compression cavities, and the air chambers are provided with air inlets and air outlets; the inner side of the upper shell is convexly provided with a first step, and the inner side of the lower shell is provided with a second step.

The power structure comprises a hard shaft rod body, an inner cylinder body, an outer cylinder body and a coil assembly which are arranged from inside to outside;

the upper side and the lower side of the shaft rod body are both connecting ends, and the connecting ends are used for connecting the piston head;

the upper side of the shaft lever body is provided with at least two first locking rings, the lower side of the shaft lever body is provided with at least two second locking rings, and the first locking rings and the second locking rings are used for limiting the elastic sheet;

the shaft rod body is also fixedly provided with the outer cylinder body between the first locking ring and the second locking ring, and the outer cylinder body is a magnetic outer cylinder body and is of an open structure and is sleeved outside the inner cylinder body.

The piston head is in contact sealing in the compression cavity, the inner cylinder body is fixed on the first step, the elastic sheet on the lower side is fixed on the second step, and the elastic sheet on the upper side is fixed on the inner cylinder body.

Further, the outer cylinder body comprises a connecting end and a magnetic end, and the connecting end and the shaft rod body are locked and fixed through bolts.

Furthermore, the magnetic end is provided with a permanent magnet on the cylinder body.

Further, the inner cylinder body is of a T-shaped structure and comprises a fixed end and a first connecting end.

Furthermore, the first connecting end is a soft magnetic end or is provided with a silicon steel sheet or a silicon steel sheet.

Further, the coil assembly includes a coil and a yoke structure disposed outside the coil.

Furthermore, the yoke structure is a soft magnetic yoke or a silicon steel yoke.

Further, the first locking rings are provided with three on the upper side.

Further, the second locking ring is provided with two on the lower side.

Further, the first locking ring and the second locking ring are both expansion sleeves.

Furthermore, an internal thread structure is arranged inside the connecting end, a connecting through hole is formed in the center shaft of the piston head, the top of the connecting through hole is a limiting end, and a locking bolt penetrates through the limiting end and is locked with the internal thread structure.

Furthermore, the elastic sheet is a circular plate spring structure, the upper circumference part of the elastic sheet is equally provided with at least four fixing through holes, and the center position of the elastic sheet is provided with a through hole.

Further, a fixed platform is arranged on the outer side of the first step.

Furthermore, the lower shell is fixed on the fixed platform while the coating main body is limited by the first step.

Further, a shell fixing bolt penetrates through the upper shell and is fixedly locked with the coating main body.

Further, a sealing ring is arranged between the coating main body and the first step.

Furthermore, the outer sides of the upper shell and the lower shell are both provided with radiating fins.

Furthermore, the outer sides of the upper shell and the lower shell are provided with foot supports through foot support rings.

In summary, the invention has the following advantages:

the invention provides a reciprocating confronting compression device, which is driven by the center of a shaft lever, is in reciprocating linkage, has reasonable integral structure and convenient connection, and is a novel double-head compression type central shaft structure suitable for a reciprocating compressor.

The invention adopts a linear driving mode, integrates the rotor structure, reduces the volume of the driving structure, adopts a double-side plate spring to position the central shaft in the whole power structure, has fixed motion track, effectively avoids friction and improves the efficiency of the motor.

The driving part of the invention adopts a magnetic driving mode, the coil is fixed, the motion trail of the central shaft lever is constant, the plate springs on the two sides can be effectively limited when being compressed transversely, reciprocating power is provided, reciprocating double-head compression can be realized, the compression efficiency is high, and the working efficiency of the motor is high.

The invention provides an upper and lower split type shell structure which is convenient to assemble and disassemble, assembling steps are reserved on the upper and lower shells, the installation of an inner side power structure is convenient, and meanwhile, the production is simpler and more convenient due to the whole design of the inner side compression chamber and the power part.

Drawings

FIG. 1 is a schematic view of a central shaft configuration;

FIG. 2 is an enlarged schematic view of section A;

FIG. 3 is a schematic diagram of a power configuration;

FIG. 4 is a schematic view of the inner cylinder structure;

FIG. 5 is a schematic view of the structure of the outer cylinder;

FIG. 6 is a schematic diagram of a spring plate structure;

FIG. 7 is a schematic view of the housing construction;

FIG. 8 is a cross-sectional view of the housing construction;

FIG. 9 is a cross-sectional view of the structure of the present invention;

fig. 10 is a preferred embodiment.

Detailed Description

The invention is further described with reference to the following figures and examples:

example 1:

it should be noted that, in the present embodiment, the term "upper" and "lower" are used in a broad sense rather than in a limited positional relationship, and in the description of the present embodiment, the term "upper" and "lower" are used in combination with the drawings to facilitate understanding of the technical solution.

A reciprocating opposing compression apparatus, as shown in FIGS. 1-8, includes a housing and a power structure disposed within the housing.

Specifically, referring to fig. 1-6, the power structure includes a hard shaft body 1, an inner cylinder 7, an outer cylinder 6 and a coil assembly 8 arranged from inside to outside.

The shaft rod body is preferably a metal shaft rod, more preferably a soft magnetic material, and has a better effect under the condition of dynamic magnetic driving, and of course, the rigidity of other materials can be satisfied.

The upper side and the lower side of the shaft lever body 1 are both connecting ends 2, and the connecting ends are used for connecting pistons.

Specifically, referring to fig. 2, the connecting end 2 is internally provided with an internal thread structure 21, and the piston head 3 is provided with a connecting through hole 31 on the central axis.

The top of the connecting through hole 31 is a limiting end 32, and a locking bolt 33 passes through the limiting end 32 and is locked with the internal thread structure 21, so that the piston head moves synchronously under the condition that the shaft rod body moves.

It should be noted that the connecting through hole 31 and the internal thread structure 21 are both located on the central axis of the respective structures, so that the central axis has a high degree of progress during movement, and friction is not easily generated.

The upper side of the shaft lever body 1 is provided with at least two first locking rings 4, the lower side of the shaft lever body is provided with at least two second locking rings 5, and an external cylinder body 6 is fixedly arranged between the first locking rings 4 and the second locking rings 5 of the shaft lever body 1.

Referring to the attached figure 1, the outer cylinder body 6 is a power source for the movement of a central shaft, the outer cylinder body 6 is a magnetic outer cylinder body and is of an open structure, the outer cylinder body is sleeved on the outer side of the inner cylinder body 7, the outer cylinder body and the inner cylinder body are coaxial but not in contact, and the outer cylinder body and the coil assembly act to generate movement through an ampere force principle.

In a specific fixing manner, the external cylinder 6 and the shaft body 1 are locked and fixed by bolts.

Of course, the connection by the expansion sleeve is also a fixing mode, and the details are not repeated herein.

With continued reference to the figures, the external cylinder 6 comprises a connecting end 61 and a magnetic end 62, in particular, the connecting end 6 is fastened to the shaft body 1 by bolts.

Further, the magnetic end 62 is provided with a permanent magnet 63 on the cylinder body, and the permanent magnet can be arranged outside the magnetic end and close to the coil, can be bonded in an adhesive manner and can be embedded into the coil, so that the overall design is compact, and the volume of the power structure is reduced.

With continued reference to fig. 1, the first locking ring 4 is provided with three on the upper side.

Further, the second locking ring 5 is provided with two on the lower side.

Further, the first locking ring 4 and the second locking ring 5 are both expansion sleeves.

The first locking ring and the second locking ring are arranged to fix the shaft body with the elastic sheet, the elastic sheet is preferably a plate spring, specifically, the elastic sheet 9 is a circular plate spring structure, at least four fixing through holes 91 are equally arranged on the upper circumference part, and a through hole 92 is arranged at the center position.

The axostylus axostyle body passes the perforating hole, and the upside is fixed by first lock ring 4, and is specific, and first upside is equipped with twice shell fragment 9.

The shell fragment downside is fixed by the second locking ring, is equipped with twice shell fragment, and moreover, two locking rings of downside, with the locking structure cooperation of outer cylinder body, fixed the shell fragment, can reduce cost.

The elastic sheets are in a fixed state relative to the whole compressor and are fixed with the shell of the compressor through the fixing through holes, and the elastic sheets arranged on the two sides position the central shaft on the two sides, so that the motion trail of the central shaft can only move on the central tracks of the two elastic sheets, and the motion precision of the central shaft is improved.

The specific connection mode of the elastic sheet is further explained in combination with the shell structure.

In a specific arrangement of the driving structure, the inner cylinder 7 is a T-shaped structure and includes a fixed end 71 and a first connection end 72, and the coil assembly 8 includes a coil 81 and a yoke structure 82 disposed outside the coil.

Further, the first connecting end 72 is a soft magnetic end or a silicon steel sheet is disposed thereon, and the yoke structure 82 is a soft magnetic yoke or a silicon steel sheet yoke.

The selection of the specific material can effectively reduce the loss of the motor iron core and improve the structural efficiency of the dynamic force.

Of course, when the elastic sheet is fixed to the coil structure, it is mainly fixed to the yoke structure, and at the same time, the elastic sheet is limited by the second step 201 on the inner side of the lower housing 200

With continued reference to fig. 7 and 8, the upper and lower casings 100 and 200 are firmly coupled to each other and both are protrusively provided with compression chambers 300.

The compression cavity is used for compressing gas, that is, the piston head 3 is sealed in the compression cavity 300, specifically, the outer end of the compression cavity 300 is an air chamber 400, and a valve plate structure 500 for air inlet and outlet is arranged between the air chamber 400 and the compression cavity 300.

The design of valve block structure can be more excellent control gas's compression.

In the design of air inlet and outlet, an air inlet 401 and an air outlet 402 are arranged on the air chamber 400.

The diameter of the air inlet and the diameter of the air outlet are 8% -20% of the diameter of the compression cavity, and the compression effect of the whole compression device can be improved due to the design of the size.

In particular, the dimension is preferably selected to be 10% of the diameter of the compression chamber.

I.e. assuming a compression chamber diameter of 8cm, the inlet and outlet diameters are preferably 0.8 cm.

In the structural arrangement of the shell, a first step 101 is convexly arranged on the inner side of the upper shell 100, and a second step 201 is arranged on the inner side of the lower shell 200.

The first step 101 is used for fixing the power structure of the compressor, specifically, an inner cylinder body of the compressor is fixed on the first step, and relative to an outer cylinder body of the power structure of the compressor, the inner cylinder body is located at a static end and connected with the first step, so that other components can be conveniently fixed.

Namely, the inner cylinder 7 is fixed on the first step 101, the lower spring plate 9 is fixed on the second step 201, and the upper spring plate 9 is fixed on the inner cylinder 7.

Thereby the central axis pole of the fixed power structure of central point of shell fragment puts, so can form fixedly to the position of central axis pole, keeps the axis pole body 1 to move at the axis of whole structure all the time promptly, improves the reciprocal efficiency of whole compressor.

Because the upper shell and the lower shell are both circular shells, the first step and the second step are connected by equally-divided bolts, and the stability is better.

With reference to fig. 8 and 9, in the fixing manner of the upper housing and the lower housing, a fixing platform 102 is disposed outside the first step 101, the covering main body 202 of the lower housing 200 is fixed to the fixing platform 102 while being limited by the first step 201, and a sealing ring is disposed between the covering main body 202 and the first step 201.

In a specific fixing manner, the housing fixing bolt 600 passes through the upper case 100 and is locked and fixed with the covering body 202.

In the heat dissipation of the whole compressor, the outer sides of the upper shell 100 and the lower shell 200 are respectively provided with the heat dissipation fins 700, so that the compressor can be guaranteed to have a good heat dissipation effect.

Further, a foot support 900 connecting through hole is formed on the outer sides of the upper casing 100 and the lower casing 200 through a foot support ring 800.

Further explained by combining the working mechanism, the coil is electrified (a wiring through hole is reserved on the shell), and the outer cylinder body reciprocates under the action of the ampere force principle, so that the piston head reciprocates, and gas compression is realized in the compression cavity.

To sum up, this scheme provides a reciprocal confronting compressor arrangement, axostylus axostyle center drive, reciprocal linkage, and overall structure is reasonable, connects the convenience, for being applicable to reciprocating compressor's novel double-end compression center pin structure.

This scheme adopts orthoscopic drive mode, with the active cell structure integration, has reduced the volume of drive structure, whole power structure moreover, and the center pin adopts two side leaf springs to fix a position, and the movement track is fixed, and the effectual friction of avoiding has improved motor efficiency.

This scheme drive division adopts the mode of magnetomotive, and the coil is fixed, and the movement track of center shaft pole is invariable, and the leaf spring of two sides can be effectual spacing when horizontal compression to provide reciprocal power, can realize reciprocal double-end compression, compression efficiency is high, and motor work efficiency is high.

This scheme provides a split type shell structure from top to bottom, and the assembly and disassembly is convenient to, all reserve on the upper and lower casing and have the assembly step, make things convenient for inboard power structure's installation, simultaneously, inboard compression chamber and the whole body design that power part was placed, make production more simple, convenient.

Example 2:

in this example, two reciprocating opposing compression devices are interlocked with each other in example 1, and the legs of the two reciprocating opposing compression devices are integrally connected to each other by a connecting cross bar 1000 with reference to fig. 9.

In the working process, the reciprocating compression device can offset horizontal force due to the resonance effect, the whole structure is in a standing state, the noise is low, and the stability is high.

The above embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It will be understood that the embodiments described above are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions for details described herein may be made by those skilled in the art without departing from the basic principles of the invention.

Claims (10)

1. A reciprocating confronting compressing apparatus, characterized in that: comprises a shell and a power structure arranged in the shell;

the shell comprises an upper shell (100) and a lower shell (200) which are connected and fastened with each other, the upper shell and the lower shell are both convexly provided with a compression cavity (300), the outer side end of the compression cavity (300) is provided with an air chamber (400), and the air chamber (400) is provided with an air inlet (401) and an air outlet (402); the inner side of the upper shell (100) is convexly provided with a first step (101), and the inner side of the lower shell (200) is provided with a second step (201)

The power structure comprises a hard shaft rod body (1), an inner cylinder body (7), an outer cylinder body (6) and a coil assembly (8) which are arranged from inside to outside;

the upper side and the lower side of the shaft rod body (1) are both provided with connecting ends (2), and the connecting ends (2) are used for connecting the piston heads (3);

the upper side of the shaft lever body (1) is provided with at least two first locking rings (4), the lower side of the shaft lever body is provided with at least two second locking rings (5), and the first locking rings (4) and the second locking rings (5) are used for limiting the elastic sheet (9);

the shaft lever body (1) is also fixedly provided with the outer cylinder body (6) between the first locking ring (4) and the second locking ring (5), and the outer cylinder body (6) is a magnetic outer cylinder body and has an open structure and is sleeved outside the inner cylinder body (7);

the piston head (3) is in contact sealing in the compression cavity (300), the inner cylinder body (7) is fixed on the first step (101), the elastic sheet (9) on the lower side is fixed on the second step (201), and the elastic sheet (9) on the upper side is fixed on the inner cylinder body (7).

2. A reciprocating confronting compression apparatus as recited in claim 1, further comprising: the external cylinder body (6) comprises a connecting end (61) and a magnetic end (62), the connecting end (61) and the shaft rod body (1) are locked and fixed through bolts, and the magnetic end (62) is provided with a permanent magnet (63) on the cylinder body.

3. A reciprocating confronting compression apparatus as recited in claim 1, further comprising: the inner cylinder body (7) is of a T-shaped structure and comprises a fixed end (71) and a first connecting end (72).

4. A reciprocating confronting compression apparatus as recited in claim 3, wherein: the first connecting end (72) is a soft magnetic end or a silicon steel sheet arranged on the soft magnetic end.

5. A reciprocating confronting compression apparatus as recited in claim 1, further comprising: the coil assembly (8) comprises a coil (81) and a yoke structure (82) arranged on the outer side of the coil, wherein the yoke structure (82) is soft magnetic yoke iron or silicon steel sheet yoke iron.

6. A reciprocating confronting compression apparatus as recited in claim 1, further comprising: the number of the first locking rings (4) is three, and the number of the second locking rings (5) is two; the locking device is characterized in that the first locking ring (4) and the second locking ring (5) are both expansion sleeves, an internal thread structure (21) is arranged inside the connecting end (2), a connecting through hole (31) is formed in the center shaft of the piston head (3), the top of the connecting through hole (31) is a limiting end (32), and a locking bolt (33) penetrates through the limiting end (32) to be locked with the internal thread structure (21).

7. A reciprocating confronting compression apparatus as recited in claim 1, further comprising: the elastic sheet (9) is a circular plate spring structure, the upper circumference part of the elastic sheet is equally provided with at least four fixing through holes (91), and the center position of the elastic sheet is provided with a through hole (92).

8. A reciprocating confronting compression apparatus as recited in claim 1, further comprising: a valve plate structure (500) for air inlet and outlet is arranged between the air chamber (400) and the compression cavity (300), a fixing platform (102) is arranged on the outer side of the first step (101), the coating main body (202) of the lower shell (200) is fixed on the fixing platform (102) while being limited by the first step (201), a shell fixing bolt (600) penetrates through the upper shell (100) and is locked and fixed with the coating main body (202), a sealing ring is arranged between the coating main body (202) and the first step (201), and heat dissipation fins (700) are arranged on the outer sides of the upper shell (100) and the lower shell (200); and foot supports (900) are arranged on the outer sides of the upper shell (100) and the lower shell (200) through foot support rings (800).

9. A reciprocating confronting compression apparatus as recited in claim 8, further comprising: the diameters of the air inlet (401) and the air outlet (402) are 8% -20% of the diameter of the compression cavity (300).

10. A combined compression device, characterized in that: comprising two opposing reciprocating compression devices as defined in claim 8 or claim 9, formed as a resonant unit at said foot supports (900) by connecting cross bars (1000).

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