CN210564952U - Permanent magnet piston compressor - Google Patents
Permanent magnet piston compressor Download PDFInfo
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- CN210564952U CN210564952U CN201921682175.XU CN201921682175U CN210564952U CN 210564952 U CN210564952 U CN 210564952U CN 201921682175 U CN201921682175 U CN 201921682175U CN 210564952 U CN210564952 U CN 210564952U
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- magnet piston
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Abstract
The utility model discloses a permanent magnet piston compressor, which solves the problems of complex structure, larger energy consumption, more movable parts and unsuitability for miniaturization of the prior compressor, and has the effects of smaller energy consumption, simple structure, less movable parts and suitability for miniaturization and microminiaturization; the technical scheme is as follows: the permanent magnet type air compressor comprises a closed circular pipeline, wherein a permanent magnet piston attached to the inner wall of the circular pipeline is arranged in the circular pipeline, and a plurality of groups of independently controlled excitation coils are uniformly distributed on the outer wall of the circular pipeline at intervals; the energized magnet exciting coil can generate a magnetic field for attracting the permanent magnet piston, so that the permanent magnet piston is tightly attached to the inner wall of the circular pipeline to slide, and fluid in the circular pipeline is compressed.
Description
Technical Field
The utility model relates to a compressor field especially relates to a permanent magnet piston compressor.
Background
The compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas, and is the heart of a refrigeration system. The refrigerating cycle is powered by sucking low-temperature and low-pressure refrigerant gas from the air suction pipe, driving the piston to compress the refrigerant gas through the operation of the motor, and discharging high-temperature and high-pressure refrigerant gas to the exhaust pipe.
The existing compressor types mainly include piston pressure, screw type, centrifugal type, linear type and the like. As the most important component of a refrigeration product, the performance of the compressor largely determines the performance of the product, such as refrigeration effect, service life, noise and vibration. Especially, under the condition that the current energy and environmental problems are severe, the energy saving of the refrigeration equipment is an important component of the national energy strategy, more and higher requirements are provided for the working efficiency of the compressor, and further optimization in the aspects of energy saving and environmental protection is needed. The inventor finds that the existing refrigeration compressor has the problem of complex structure in different degrees, particularly the existing refrigeration compressor is limited by the driving motor technology, and the situation of large volume generally exists, but the technical requirement of micro-space cooling is more and more urgent along with the rapid development of the technologies such as electronic chips, laser, radar and the like, and the breakthrough in the aspect of miniaturization of the refrigeration device is urgently needed.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a permanent magnet piston compressor, it has the effect that energy loss is less, simple structure, moving parts are few, be fit for miniaturization and miniaturization.
The utility model adopts the following technical proposal:
a permanent magnet piston compressor comprises a closed circular pipeline, permanent magnet pistons attached to the inner wall of the circular pipeline are arranged in the circular pipeline, and a plurality of groups of independently controlled excitation coils are uniformly distributed on the outer wall of the circular pipeline at intervals; the energized magnet exciting coil can generate a magnetic field for attracting the permanent magnet piston, so that the permanent magnet piston is tightly attached to the inner wall of the circular pipeline to slide, and fluid in the circular pipeline is compressed.
Furthermore, the circular pipeline is provided with a gate, fluid in the circular pipelines on two sides of the gate can be isolated when the gate is closed, and the permanent magnet piston can be allowed to pass through when the gate is opened.
Furthermore, an air inlet valve is arranged on one side of the gate, and an air outlet valve is arranged on the other side of the gate.
Further, the fluid entering the circular ring-shaped pipeline through the air inlet valve can be gas or gas-liquid mixed two-phase fluid.
Further, both ends of the permanent magnet piston are provided with magnetic poles.
Furthermore, the rotation directions of the excitation coils are the same.
The working method of the permanent magnet piston compressor comprises the following steps: when the permanent magnet piston is positioned at the position P on one side of the gate, the gate is closed, the air inlet valve is opened, the exhaust valve is closed, the front fluid of the permanent magnet piston is compressed under the drive of magnetic force, the fluid pressure is increased, the volume of the rear space is increased, the fluid pressure is reduced, and the air is continuously sucked from the air inlet valve;
meanwhile, the fluid in front of the permanent magnet piston is compressed, and when the fluid is close to the symmetrical position P' on the other side of the gate, the exhaust valve is opened, and the compressed fluid flows out of the exhaust valve; when the permanent magnet piston reaches the position P', the exhaust valve is closed, the intake valve is closed at the same time, the gate is opened, and when the permanent magnet piston returns to the position P through the gate, the gate is closed, so that one cycle is completed.
Further, the magnetic driving process of the permanent magnet piston is as follows: the excitation coil in front of the permanent magnet piston is electrified to generate a magnetic field for attracting the permanent magnet piston, and the permanent magnet piston is attracted to enter the interior of the permanent magnet piston from one end of the excitation coil; when the magnetic force is to be converted into repulsive force near the other end of the excitation coil, the excitation coil is de-energized and the other set of coils in front of the excitation coil is energized.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the permanent magnet piston of the utility model can slide along the circular ring pipeline under the driving of the magnet exciting coil, compresses the fluid in the circular ring pipeline, and the low-pressure fluid flowing into the circular ring pipeline from the air inlet valve is compressed into high-pressure fluid to be discharged from the exhaust valve, thereby playing the role of a compressor; the moving parts are fewer, and the device is suitable for miniaturization and microminiaturization.
(2) The utility model discloses the power supply of permanent magnet piston is the excitation coil of circular telegram, and the permanent magnet piston can only unidirectional motion, and energy loss is less, and is efficient than reciprocating type piston.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
the device comprises an annular pipeline 1, a permanent magnet piston 2, a permanent magnet piston 3, an excitation coil 4, a gate 5, an air inlet valve 6 and an exhaust valve.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" when appearing in this application are intended only to designate directions that are consistent with the up, down, left and right directions of the drawings themselves, and not to limit the structure, but merely to facilitate description of the invention and to simplify description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the application.
The terms "mounted", "connected", "fixed", and the like in the present application should be understood broadly, and for example, the terms "mounted", "connected", and "fixed" may be fixedly connected, detachably connected, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Permanent magnet piston, utilize permanent magnet piston of making.
Just as the background art introduces, there are the not enough of complicated structure, the energy consumption is great, the movable part is more, unsuitable miniaturization among the prior art, for solving above-mentioned technical problem, the utility model provides a permanent magnet piston compressor.
The first embodiment is as follows:
the present invention will be described in detail with reference to the accompanying fig. 1, specifically, the structure is as follows:
a linear motor is a transmission device that directly converts electric energy into mechanical energy for linear motion without any intermediate conversion mechanism. Compared with a rotating motor, the linear motor mainly has the following characteristics:
the linear motor does not need an additional device for changing rotary motion into linear motion, so that the structure of the system is greatly simplified, and the weight and the volume are greatly reduced; secondly, the positioning precision is high, and the linear motor can realize direct transmission in places needing linear motion, so that various positioning errors caused by intermediate links can be eliminated, the positioning precision is high, and the positioning precision of the whole system can be greatly improved if microcomputer control is adopted; thirdly, the reaction speed is fast, the sensitivity is high, and the follow-up property is good. The linear motor has the advantages that the rotor of the linear motor is easily supported by magnetic suspension, so that a certain air gap is always kept between the rotor and the stator without contact, the contact friction resistance between the stator and the rotor is eliminated, and the sensitivity, the rapidity and the follow-up property of the system are greatly improved; fourthly, the work is safe and reliable, the service life is long.
The linear motor can realize non-contact force transmission, and the mechanical friction loss is almost zero, so that the failure is less, the maintenance is not needed, the work is safe and reliable, and the service life is long. Based on the linear motor principle, this embodiment provides a permanent magnet piston compressor, utilizes magnetic drive permanent magnet piston 2, and it includes a confined ring shape pipeline 1, a permanent magnet piston 2 and multiunit excitation coil 3, and wherein, permanent magnet piston 2 sets up inside ring shape pipeline 1, and multiunit excitation coil 3 interval is even encircles in ring shape pipeline 1 outer wall, and excitation coil 3 revolve to (winding direction) the same. The magnet exciting coil 3 can generate magnetic force after being electrified to drive the permanent magnet piston 2 to slide along the inside of the circular pipeline 1.
In order not to affect the magnetic field generated by the excitation coil 3, the circular ring-shaped pipe 1 is made of non-magnetized material. The outer edge of the permanent magnet piston 2 is in sealing fit with the inner wall of the circular ring-shaped pipeline 1, and magnetic poles are arranged at two ends of the permanent magnet piston 2.
The number of groups of the magnet exciting coils 3 is related to the power required by the compressor and can be set according to actual requirements. Taking 3 groups of excitation coils 3 as an example, the included angle between the adjacent excitation coils 3 and the circle center of the circular pipeline 1 is 120 °. As shown in fig. 1, a ', a ", b', b" are terminals through which the exciting coil 3 is connected to a power source.
The circular pipeline 1 is provided with a gate 4, fluid in the circular pipeline 1 on two sides of the gate 4 can be isolated when the gate 4 is closed, and the permanent magnet piston 2 can be allowed to pass through when the gate 4 is opened. And an air inlet valve 5 is arranged on one side of the gate 4, when the air inlet valve 5 is opened, the external fluid of the circular pipeline 1 is allowed to enter the circular pipeline 1, and when the air inlet valve 5 is closed, the external fluid is isolated. An air outlet valve 6 is arranged on the other side of the gate 4, when the air outlet valve 6 is opened, the fluid in the circular ring-shaped pipeline 1 is allowed to flow out of the circular ring-shaped pipeline 1, and when the air outlet valve 6 is closed, the fluid in the circular ring-shaped pipeline 1 is isolated.
The motion principle of the permanent magnet piston 2 is as follows:
the excitation coil 3 in front of the permanent magnet piston 2 (the clockwise movement of the permanent magnet piston 2 is taken as the front) is electrified to generate a magnetic field which attracts the permanent magnet piston 2, so that the permanent magnet piston 2 is attracted to move forwards, and the permanent magnet piston 2 enters the interior from one end of the excitation coil 3.
When the magnetic field force is to be converted into repulsive force near the other end of the excitation coil 3, the excitation coil 3 is powered off, and the other excitation coil 3 in front of the excitation coil is powered on to attract the permanent magnet piston 2 to continue to move forwards. When the permanent magnet piston 2 leaves the interior of the current excitation coil 3, the current excitation coil 3 can be electrified reversely to generate repulsive force to the permanent magnet piston 2, and the permanent magnet piston 2 is pushed to move towards the next group of excitation coils 3.
The working method of the permanent magnet piston compressor in the embodiment comprises the following steps:
when the permanent magnet piston 2 is at the position P on one side of the gate 4, the gate 4 is closed, the air inlet valve 5 is opened, the exhaust valve 6 is closed, the front fluid of the permanent magnet piston 2 is compressed under the drive of magnetic force, the fluid pressure is increased, the volume of the rear space is increased, the fluid pressure is reduced, and the air is continuously sucked from the air inlet valve 5.
Meanwhile, the fluid in front of the permanent magnet piston 2 is compressed, when the fluid is close to the symmetrical position P' on the other side of the gate 4, the exhaust valve 6 is opened, and the compressed fluid flows out of the exhaust valve 6; when the permanent magnet piston 2 reaches the position P', the exhaust valve 6 is closed, the air inlet valve 5 is closed at the same time, the gate 4 is opened, and when the permanent magnet piston 2 returns to the position P through the gate 4, the gate 4 is closed, so that one cycle is completed.
The low-pressure fluid flowing into the circular ring-shaped pipeline 1 from the air inlet valve 5 is compressed into high-pressure fluid and is discharged from the exhaust valve 6, so that the circular ring-shaped pipeline plays a role of a compressor. The fluid can be gas, gas-liquid mixed two-phase fluid and can not be incompressible fluid.
In the operation process of the permanent magnet compressor, the permanent magnet piston 2 moves unidirectionally, energy loss is small, and efficiency is higher than that of a reciprocating piston. Meanwhile, the structure is simple, the number of moving parts is small, and the device is suitable for miniaturization and microminiaturization.
The permanent magnet piston 2 in this embodiment is a permanent magnet mover, which may be replaced by an excited mover, as long as the effect of moving the mover forward to compress the fluid is achieved.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (6)
1. A permanent magnet piston compressor is characterized by comprising a closed circular pipeline, wherein a permanent magnet piston attached to the inner wall of the circular pipeline is arranged in the circular pipeline, and a plurality of groups of independently controlled excitation coils are uniformly distributed on the outer wall of the circular pipeline at intervals; the energized magnet exciting coil can generate a magnetic field for attracting the permanent magnet piston, so that the permanent magnet piston is tightly attached to the inner wall of the circular pipeline to slide, and fluid in the circular pipeline is compressed.
2. The compressor as claimed in claim 1, wherein the circular ring pipe is provided with a gate, the gate is closed to isolate the fluid inside the circular ring pipe on both sides of the gate, and the gate is opened to allow the permanent magnet piston to pass through.
3. The compressor as claimed in claim 2, wherein the gate has an inlet valve on one side and an outlet valve on the other side.
4. The permanent magnet piston compressor according to claim 3, wherein the fluid entering the annular pipe through the inlet valve can be gas or gas-liquid mixed two-phase fluid.
5. The permanent magnet piston compressor according to claim 1, wherein both ends of said permanent magnet piston have magnetic poles.
6. A permanent magnet piston compressor according to claim 1, characterized in that the directions of rotation of said field coils are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921682175.XU CN210564952U (en) | 2019-10-08 | 2019-10-08 | Permanent magnet piston compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921682175.XU CN210564952U (en) | 2019-10-08 | 2019-10-08 | Permanent magnet piston compressor |
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| Publication Number | Publication Date |
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| CN210564952U true CN210564952U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921682175.XU Active CN210564952U (en) | 2019-10-08 | 2019-10-08 | Permanent magnet piston compressor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529362A (en) * | 2019-10-08 | 2019-12-03 | 山东省科学院能源研究所 | A kind of permanent magnetic piston compressor and its working method |
| WO2024217489A1 (en) * | 2023-04-19 | 2024-10-24 | 上海尚蝶实业有限公司 | Circulating fluid power system and components thereof |
-
2019
- 2019-10-08 CN CN201921682175.XU patent/CN210564952U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529362A (en) * | 2019-10-08 | 2019-12-03 | 山东省科学院能源研究所 | A kind of permanent magnetic piston compressor and its working method |
| WO2024217489A1 (en) * | 2023-04-19 | 2024-10-24 | 上海尚蝶实业有限公司 | Circulating fluid power system and components thereof |
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