CN112054647A - Linear driving electromagnetic cylinder system - Google Patents
Linear driving electromagnetic cylinder system Download PDFInfo
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- CN112054647A CN112054647A CN202010870192.7A CN202010870192A CN112054647A CN 112054647 A CN112054647 A CN 112054647A CN 202010870192 A CN202010870192 A CN 202010870192A CN 112054647 A CN112054647 A CN 112054647A
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- electromagnetic cylinder
- top cover
- assembly
- electromagnetic
- base
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/02—Casings or enclosures characterised by the material thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The invention discloses a linear driving electromagnetic cylinder system which comprises an electromagnetic cylinder top cover assembly, wherein an electromagnetic cylinder base assembly is arranged at the bottom end of the electromagnetic cylinder top cover assembly, a supporting assembly is arranged at the bottom end of the electromagnetic cylinder base assembly, a sliding groove is formed in the middle of the bottom end of the electromagnetic cylinder top cover assembly, a secondary central rod is arranged in the sliding groove, the bottom end of the secondary central rod sequentially penetrates through the electromagnetic cylinder base assembly and the supporting assembly and extends to the lower portion of the supporting assembly, and an electromagnetic driving assembly is arranged inside the electromagnetic cylinder base assembly and on the outer side of the secondary central rod. Has the advantages that: the invention has the advantages of high temperature resistance, high precision, low energy consumption, high adjusting efficiency and low cost; the electromagnetic cylinder can be controlled to be below 100 ℃, the electromagnetic cylinder works stably, the service life is long, the structure is small and exquisite, materials are saved, and the production cost is low.
Description
Technical Field
The invention relates to the technical field of electromagnetic cylinders, in particular to a linear driving electromagnetic cylinder system.
Background
The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and can perform linear reciprocating motion. It can omit the speed reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in hydraulic systems of various machines. The cylinder is a pneumatic actuating element which converts the pressure energy of compressed gas into mechanical energy in pneumatic transmission, and the cylinder has two types of reciprocating linear motion and reciprocating swing.
In the prior art, the hydraulic cylinder and the air cylinder have the following defects:
1. the hydraulic cylinder has longer pipelines and more joints, is easy to leak, causes smoke or flame, has potential safety hazard and influences production;
2. the cylinder has the advantages of small pressure, small thrust, large structure, large occupied space, unsuitable use of products with small approach point distance, large products and unsuitable use of high injection pressure;
3. the hydraulic cylinder and the air cylinder are inconvenient to adjust the height and position of the valve needle, and the control method is complex.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The invention provides a linear driving electromagnetic cylinder system aiming at the problems in the prior art, which adopts the principle that a winding and an iron core are set as primary parts, a movement guide rod is set as a secondary central rod, and the secondary central rod is driven by electromagnetism to move up and down by utilizing the principle of a linear driving motor, so that the technical problems in the prior art are solved.
Therefore, the invention adopts the following specific technical scheme:
the utility model provides a linear driving electromagnetic cylinder system, includes electromagnetic cylinder top cap subassembly, the bottom of electromagnetic cylinder top cap subassembly is provided with electromagnetic cylinder base subassembly, the bottom of electromagnetic cylinder base subassembly is provided with supporting component, the bottom middle part of electromagnetic cylinder top cap subassembly is provided with the spout, be provided with secondary well core rod in the spout, and the bottom of secondary well core rod runs through electromagnetic cylinder base subassembly and supporting component in proper order and extends to supporting component's below, the inside outside of just secondary well core rod of electromagnetic cylinder base subassembly is provided with the electromagnetic driving subassembly.
Furthermore, in order to reduce the temperature of the electromagnetic cylinder when the electromagnetic cylinder system of the invention runs for a long time, the electromagnetic cylinder top cover component comprises a top cover shell, a top cover cooling water channel is arranged in the top cover shell and above the sliding groove, the top cover cooling water channel is arranged in the top cover shell in a surrounding manner, and a first connector is arranged on the side wall of the top cover shell and is connected with the top cover cooling water channel.
Furthermore, in order to be matched with the electromagnetic cylinder top cover assembly for use and reduce the temperature of the electromagnetic cylinder system during long-term use, the electromagnetic cylinder base assembly comprises a base shell arranged at the bottom end of the top cover shell, a base cooling water path is arranged inside the base shell and below the electromagnetic driving assembly, the base cooling water path is arranged in the base shell in a surrounding mode, the base cooling water path is communicated with the top cover cooling water path, a connector II is arranged on the side wall of the base shell, and the connector II is connected with the base cooling water path.
Further, in order to be connected that top cap shell and base shell are firm, stability when improving electromagnetic cylinder system and using, four edges on the top of top cap shell are equal vertical electromagnetic cylinder fixing screw hole that is provided with respectively, and the bottom of every electromagnetic cylinder fixing screw hole of group runs through top cap shell, base shell and supporting component in proper order and extends to supporting component's below.
Furthermore, in order to reduce the weight of the electromagnetic cylinder system, improve the heat dissipation effect, reduce the noise, improve the wear resistance and prolong the service life, the top cover shell and the base shell are respectively made of aluminum alloy.
Further, when being connected and using in order to make electromagnetism jar system and external world, reduce the harm of vibrations to electromagnetism jar system, the supporting component is provided with a plurality of groups base cushion blocks including setting up the backup pad in base shell below between the top of backup pad and the bottom of base shell, and the vertical direction in middle part of backup pad is provided with the via hole, and the bottom of backup pad is provided with a plurality of groups backup pad blocks.
Furthermore, in order to enable the electromagnetic cylinder system to be disassembled and assembled again, the assembling error is reduced, and two groups of supporting plate positioning pin holes are respectively formed in the supporting plate and on two sides of the through hole.
Furthermore, in order to enable the electromagnetic cylinder system to be stably connected with the outside, four groups of supporting plate fixing screw holes are symmetrically arranged on the supporting plate and on two sides of the supporting plate positioning pin hole.
Furthermore, in order to enable the electromagnetic cylinder system to drive the target to move linearly, the secondary center rod comprises a sliding block arranged in a sliding groove, a rod body is arranged at the bottom end of the sliding block, the rod body sequentially penetrates through the electromagnetic driving assembly, the base shell and the through hole and extends below the through hole, and a connecting plate is arranged at the bottom end of the rod body.
Further, in order to improve the driving precision and the driving force of the electromagnetic cylinder system, the electromagnetic driving assembly comprises a primary iron core arranged at the top end of the base shell and outside the rod body, and a primary winding is arranged in the primary iron core and outside the rod body.
The invention has the beneficial effects that:
(1) the principle of the invention is that the winding and the iron core are set as the primary, the motion guide rod is set as the secondary central rod by utilizing the principle of a linear driving motor, and the secondary central rod is driven by electromagnetism to move up and down, so that various problems in the use of the traditional oil gas cylinder are solved.
(1) The invention adopts a linear electromagnetic driving technology, adopts the most advanced precise coil winding, and is provided with the electromagnetic driving component, the secondary central rod and the like, thereby being capable of resisting the high temperature of more than 200 ℃, having the control precision of 0.01mm, being capable of adjusting the driving force by adjusting the current, having low energy consumption, high adjusting efficiency and low cost.
(2) The electromagnetic cylinder adopts a circulating water cooling system, the top cover and the base of the electromagnetic cylinder are both provided with waterway structures, the upper waterway and the lower waterway are communicated, the temperature of the electromagnetic cylinder body can be controlled below 100 ℃, the electromagnetic cylinder works stably, the service life is long, the structure is small and exquisite, materials are saved, and the production cost is low.
(3) The electromagnetic cylinder body is made of aluminum alloy materials, and has the advantages of light weight, good heat dissipation effect, low noise, wear resistance and long service life.
(4) The electromagnetic cylinder has the advantages of few parts, few mechanical contact parts, less part abrasion, low failure rate and no need of regular maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic perspective view of a linear drive electromagnetic cylinder system according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a linear drive electromagnetic cylinder system according to an embodiment of the present invention;
FIG. 3 is a bottom view of a linear drive electromagnetic cylinder system in accordance with an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a secondary center rod of a linear drive electromagnetic cylinder system according to an embodiment of the present invention.
In the figure:
1. an electromagnetic cylinder top cover assembly; 101. a top cover housing; 102. a top cover cooling water path; 103. a first connector; 104. fixing screw holes of the electromagnetic cylinder; 2. an electromagnetic cylinder base assembly; 201. a base housing; 202. a base cooling water path; 203. a second joint; 3. a support assembly; 301. a support plate; 302. a base cushion block; 303. a via hole; 304. a shoe pad; 305. a support plate positioning pin hole; 306. screw holes are fixed on the supporting plate; 4. a chute; 5. a secondary center pole; 501. a slider; 502. a shaft body; 503. a connecting plate; 6. an electromagnetic drive assembly; 601. a primary iron core; 602. a primary winding.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
According to an embodiment of the present invention, there is provided a linear driving electromagnetic cylinder system.
Referring to the drawings and the detailed description, as shown in fig. 1-4, the linearly driven electromagnetic cylinder system according to the embodiment of the present invention includes an electromagnetic cylinder top cover assembly 1, an electromagnetic cylinder base assembly 2 is disposed at a bottom end of the electromagnetic cylinder top cover assembly 1, a support assembly 3 is disposed at a bottom end of the electromagnetic cylinder base assembly 2, a sliding chute 4 is disposed in a middle portion of a bottom end of the electromagnetic cylinder top cover assembly 1, a secondary central rod 5 is disposed in the sliding chute 4, a bottom end of the secondary central rod 5 sequentially penetrates through the electromagnetic cylinder base assembly 2 and the support assembly 3 and extends to a position below the support assembly 3, and an electromagnetic drive assembly 6 is disposed inside the electromagnetic cylinder base assembly 2 and outside the secondary central rod 5.
By means of the scheme, the invention has the advantages of high temperature resistance, high precision, low energy consumption, high regulation efficiency and low cost; the electromagnetic cylinder can be controlled to be below 100 ℃, the electromagnetic cylinder works stably, the service life is long, the structure is small and exquisite, materials are saved, and the production cost is low.
In one embodiment, for the above described electromagnetic cylinder top cover assembly 1, by arranging the electromagnetic cylinder top cover assembly 1 including the top cover casing 101, the top cover cooling water path 102 is arranged inside the top cover casing 101 and above the sliding groove 4, and the top cover cooling water path 102 is arranged around the inside of the top cover casing 101, the first connector 103 is arranged on the side wall of the top cover casing 101, and the first connector 103 is connected with the top cover cooling water path 102, the temperature of the electromagnetic cylinder can be reduced when the electromagnetic cylinder system of the present invention is operated for a long time.
In one embodiment, for the above-mentioned electromagnetic cylinder base assembly 2, the electromagnetic cylinder base assembly 2 includes a base casing 201 disposed at the bottom end of the top cover casing 101, a base cooling water channel 202 is disposed inside the base casing 201 and below the electromagnetic driving assembly 6, the base cooling water channel 202 is disposed around the base casing 201, the base cooling water channel 202 is communicated with the top cover cooling water channel 102, a connector two 203 is disposed on a side wall of the base casing 201, and the connector two 203 is connected with the base cooling water channel 202, so as to be capable of cooperating with the electromagnetic cylinder top cover assembly 1, and reduce the temperature of the electromagnetic cylinder system during long-term use.
In an embodiment, for the top cover casing 101, the electromagnetic cylinder fixing screw holes 104 are vertically arranged at four corners of the top end of the top cover casing 101, and the bottom end of each group of electromagnetic cylinder fixing screw holes 104 sequentially penetrates through the top cover casing 101, the base casing 201 and the supporting component 3 and extends to the lower side of the supporting component 3, so that the top cover casing 101 and the base casing 201 can be stably connected, and the stability of the electromagnetic cylinder system during use is improved.
In one embodiment, for the top cover casing 101, the top cover casing 101 and the base casing 201 are made of aluminum alloy respectively, so as to reduce the weight of the electromagnetic cylinder system, improve the heat dissipation effect, reduce the noise, improve the wear resistance and prolong the service life.
In an embodiment, for the supporting assembly 3, the supporting assembly 3 includes a supporting plate 301 disposed below the base housing 201, a plurality of sets of base cushion blocks 302 are disposed between a top end of the supporting plate 301 and a bottom end of the base housing 201, a through hole 303 is disposed in a vertical direction in a middle portion of the supporting plate 301, and a plurality of sets of supporting plate cushion blocks 304 are disposed at a bottom end of the supporting plate 301, so that when the electromagnetic cylinder system is connected with the outside and used, damage of vibration to the electromagnetic cylinder system is reduced.
In one embodiment, for the supporting plate 301, two sets of supporting plate positioning pin holes 305 are respectively formed on the supporting plate 301 and on both sides of the through hole 303, so that when the electromagnetic cylinder system is disassembled and reassembled, the assembling error is reduced.
In one embodiment, for the supporting plate 301, four sets of supporting plate fixing screw holes 306 are symmetrically arranged on the supporting plate 301 at two sides of the supporting plate positioning pin hole 305, so that the electromagnetic cylinder system can be stably connected with the outside.
In one embodiment, for the secondary central rod 5, the secondary central rod 5 includes a sliding block 501 disposed in the sliding groove 4, a rod 502 is disposed at a bottom end of the sliding block 501, the rod 502 sequentially penetrates through the electromagnetic driving component 6, the base housing 201, and the through hole 303 and extends below the through hole 303, and a connecting plate 503 is disposed at a bottom end of the rod 502, so that the electromagnetic cylinder system can drive the target to move linearly.
In one embodiment, for the electromagnetic driving assembly 6, the electromagnetic driving assembly 6 comprises a primary iron core 601 arranged at the top end of the base shell 201 and outside the shaft 502, and a primary winding 602 is arranged in the primary iron core 601 and outside the shaft 502, so that the driving precision and the driving force of the electromagnetic cylinder system can be improved.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
In practical application, current is switched on for the primary winding 602, the primary winding 602 generates a magnetic field, the primary iron core 601 can enhance the magnetic field, the slider 501 is magnetized and moves under the action of the magnetic field, the driving force and the driving direction of the slider 501 can be changed by changing the direction and the magnitude of the current, and then the slider 501 can drive the rod body 502 to move up and down. When the electromagnetic cylinder system operates, water circularly enters the top cover cooling water channel 102 and the base cooling water channel 202 through the first connector 103 and the second connector 203 from an external water source, and the temperature of the electromagnetic cylinder system is reduced.
In summary, the principle of the invention is that the winding and the iron core are set as the primary, the movement guide rod is set as the secondary central rod 5, and the secondary central rod 5 is driven by the electromagnetism to move up and down, so that various problems in the use of the traditional oil gas cylinder are solved. The electromagnetic cylinder adopts a circulating water cooling system, the top cover and the base of the electromagnetic cylinder are both provided with waterway structures, the upper waterway and the lower waterway are communicated, the temperature of the electromagnetic cylinder body can be controlled below 100 ℃, the electromagnetic cylinder works stably, the service life is long, the structure is small and exquisite, materials are saved, and the production cost is low. The electromagnetic cylinder body is made of aluminum alloy materials, and has the advantages of light weight, good heat dissipation effect, low noise, wear resistance and long service life. The electromagnetic cylinder has the advantages of few parts, few mechanical contact parts, less part abrasion, low failure rate and no need of regular maintenance.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The linear driving electromagnetic cylinder system is characterized by comprising an electromagnetic cylinder top cover assembly (1), wherein an electromagnetic cylinder base assembly (2) is arranged at the bottom end of the electromagnetic cylinder top cover assembly (1), a supporting assembly (3) is arranged at the bottom end of the electromagnetic cylinder base assembly (2), a sliding groove (4) is formed in the middle of the bottom end of the electromagnetic cylinder top cover assembly (1), a secondary central rod (5) is arranged in the sliding groove (4), the bottom end of the secondary central rod (5) sequentially penetrates through the electromagnetic cylinder base assembly (2) and the supporting assembly (3) and extends to the lower portion of the supporting assembly (3), and an electromagnetic driving assembly (6) is arranged inside the electromagnetic cylinder base assembly (2) and outside the secondary central rod (5).
2. The linear driving electromagnetic cylinder system according to claim 1, characterized in that the electromagnetic cylinder top cover assembly (1) comprises a top cover housing (101), a top cover cooling water path (102) is arranged inside the top cover housing (101) and above the sliding chute (4), the top cover cooling water path (102) is arranged in the top cover housing (101) in a surrounding manner, a first joint (103) is arranged on a side wall of the top cover housing (101), and the first joint (103) is connected with the top cover cooling water path (102).
3. The linear driving electromagnetic cylinder system according to claim 2, characterized in that the electromagnetic cylinder base assembly (2) comprises a base housing (201) disposed at the bottom end of the top cover housing (101), a base cooling water path (202) is disposed inside the base housing (201) and below the electromagnetic driving assembly (6), the base cooling water path (202) is disposed around the base housing (201), the base cooling water path (202) is communicated with the top cover cooling water path (102), a connector two (203) is disposed on a side wall of the base housing (201), and the connector two (203) is connected with the base cooling water path (202).
4. The linear driving electromagnetic cylinder system according to claim 3, wherein four corners of the top end of the top cover housing (101) are respectively vertically provided with electromagnetic cylinder fixing screw holes (104), and the bottom end of each set of electromagnetic cylinder fixing screw holes (104) sequentially penetrates through the top cover housing (101), the base housing (201) and the supporting component (3) and extends to the lower side of the supporting component (3).
5. The linear-drive electromagnetic cylinder system as set forth in claim 3 or 4, characterized in that the top cover housing (101) and the base housing (201) are made of aluminum alloy.
6. The linear driving electromagnetic cylinder system according to claim 5, characterized in that the supporting component (3) comprises a supporting plate (301) disposed below the base housing (201), a plurality of sets of base cushion blocks (302) are disposed between the top end of the supporting plate (301) and the bottom end of the base housing (201), a through hole (303) is disposed in the middle of the supporting plate (301) in the vertical direction, and a plurality of sets of supporting plate cushion blocks (304) are disposed at the bottom end of the supporting plate (301).
7. A linear drive electromagnetic cylinder system as claimed in claim 6, characterized in that two sets of support plate positioning pin holes (305) are provided on the support plate (301) on both sides of the through hole (303).
8. A linear drive electromagnetic cylinder system as claimed in claim 7, characterized in that four sets of support plate fixing screw holes (306) are symmetrically provided on the support plate (301) on both sides of the support plate positioning pin hole (305).
9. The linear driving electromagnetic cylinder system according to claim 8, characterized in that the secondary central rod (5) comprises a sliding block (501) arranged in the sliding groove (4), a rod (502) is arranged at the bottom end of the sliding block (501), the rod (502) sequentially penetrates through the electromagnetic driving assembly (6), the base housing (201) and the through hole (303) and extends below the through hole (303), and a connecting plate (503) is arranged at the bottom end of the rod (502).
10. A linear drive electromagnetic cylinder system according to claim 9, characterized in that the electromagnetic drive assembly (6) comprises a primary core (601) disposed at the top end of the base housing (201) and outside the shaft (502), a primary winding (602) being disposed inside the primary core (601) and outside the shaft (502).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010870192.7A CN112054647B (en) | 2020-08-26 | 2020-08-26 | Linear driving electromagnetic cylinder system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010870192.7A CN112054647B (en) | 2020-08-26 | 2020-08-26 | Linear driving electromagnetic cylinder system |
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| Publication Number | Publication Date |
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| CN112054647A true CN112054647A (en) | 2020-12-08 |
| CN112054647B CN112054647B (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010870192.7A Active CN112054647B (en) | 2020-08-26 | 2020-08-26 | Linear driving electromagnetic cylinder system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406649A (en) * | 2015-12-17 | 2016-03-16 | 宁波沪江电机有限公司 | Water-cooling high pressure cleaner motor |
| CN206673764U (en) * | 2017-04-07 | 2017-11-24 | 宁波菲仕自动化技术有限公司 | Motor casing and motor |
| CN110332090A (en) * | 2019-07-05 | 2019-10-15 | 连伟 | High-efficiency energy-saving permanent magnet straight line duplex cylinder compressor |
-
2020
- 2020-08-26 CN CN202010870192.7A patent/CN112054647B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406649A (en) * | 2015-12-17 | 2016-03-16 | 宁波沪江电机有限公司 | Water-cooling high pressure cleaner motor |
| CN206673764U (en) * | 2017-04-07 | 2017-11-24 | 宁波菲仕自动化技术有限公司 | Motor casing and motor |
| CN110332090A (en) * | 2019-07-05 | 2019-10-15 | 连伟 | High-efficiency energy-saving permanent magnet straight line duplex cylinder compressor |
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| Publication number | Publication date |
|---|---|
| CN112054647B (en) | 2023-03-28 |
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