Direct-current direct-push piston type compressor
By adopting direct current push technology in piston compressors, the reciprocating movement of the piston is achieved by using coil drive drivers, which solves the problems of low energy utilization and low durability in the prior art, and achieves more efficient energy utilization and More flexible piston movement.
Patent Information
- Application Number
- CN202411378864.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-02-11
AI Technical Summary
The existing piston compressors have problems such as low energy utilization, large energy waste, and limited crankshaft radius and low durability.
The direct current push piston compressor is adopted. The reciprocating movement of the mover is realized by changing the current direction through two sets of coils (first coil and second coil), and the piston is directly driven to perform compression work, eliminating the motor part and simplifying the mechanical structure.
Improves energy efficiency, reduces energy waste, eliminates crankshaft restrictions, and increases flexibility and durability of piston movement.
Smart Images
Figure CN119412311A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of household and electric vehicle air-conditioning compressors, in particular to a direct current direct-push piston compressor. Background Art
[0002] Air conditioning compressors in homes and electric vehicles generally use piston and scroll types. Piston compressors have the advantages of compact structure, low resistance, high refrigeration coefficient, and their lifespan is usually longer. Scroll compressors are a new type of compressor with the advantages of high efficiency, low vibration, small mass, and simple structure. Their refrigeration efficiency is usually better than that of piston compressors, but they may be slightly inferior in terms of durability.
[0003] The existing piston type currently uses an electric motor to drive the piston to move back and forth through a crankshaft and a connecting rod. In essence, it converts rotational motion into reciprocating linear motion. In this conversion process, there is a problem of low energy utilization, and the rotational motion of the motor itself will generate centrifugal force. The higher the speed, the greater the centrifugal force, thereby wasting more energy. Moreover, the piston movement stroke is limited by the crankshaft radius and cannot be flexibly adjusted. At the same time, there is friction in the bearings installed between the motor rotor and the body, which further reduces energy efficiency. Summary of the invention
[0004] In view of the deficiencies in the prior art, the present invention provides a DC direct-push piston compressor, which solves the problems of energy waste, low energy utilization, piston movement stroke being limited by crankshaft radius and low durability.
[0005] To achieve the above objectives, the present invention is implemented through the following technical scheme: a DC direct-push piston compressor, including a piston ring, wherein the left and right sides of the piston ring are fixedly connected with a first connecting piece, the left side of the first connecting piece is fixedly connected to a push rod fixing frame, the left side of the push rod fixing frame is fixedly connected to a second connecting piece, the left side of the second connecting piece is fixedly connected to a coil seat, a separator ring is fixedly connected at the center position of the outer surface of the coil seat, the inner diameter of the coil seat is slidably connected to a mover, the center position of the right end of the mover is fixedly connected to a push rod, the right end of the push rod is fixedly connected to a piston, a sliding cavity is opened on the inner diameter of the piston ring, the piston is slidably connected to the sliding cavity, a first coil is provided on the right side of the separator ring, and a second coil is provided on the left side of the separator ring, and the first coil and the second coil are both located on the surface of the coil seat.
[0006] Preferably, the mover is a cylindrical permanent magnet, and the magnetic poles of the mover are at the left and right ends.
[0007] Preferably, the coil seat is a stator, the first coil and the second coil are hollow coils wound by enameled wire, and the first coil and the second coil are sleeved on the surface of the coil seat as a stator.
[0008] Preferably, when the mover is on the right side, the first coil is connected to a DC power supply with positive on the left and negative on the right to generate an attraction force to the left. After the mover moves to a certain position, the second coil is connected to a DC power supply with negative on the left and positive on the right to generate a thrust force to the left.
[0009] Preferably, when the mover is on the left, the second coil is connected to a DC power supply with positive on the left and negative on the right to generate an attractive force to the right. After the mover moves to a certain position, the first coil is connected to a DC power supply with negative on the left and positive on the right to generate a thrust to the right.
[0010] Working principle: Two sets of coils are used, namely the first coil and the second coil, and the reciprocating motion of the mover is realized by constantly changing the direction of the coil current. When the mover is on the right side of the stator, the first coil on the left is connected to a DC power supply with positive on the left and negative on the right. The first coil generates a magnetic field with S pole on the left and N pole on the right, which generates an attraction to the left on the mover and causes the mover to move to the left. When the mover moves to the left for a certain position, the second coil on the right is connected to a DC power supply with negative on the left and positive on the right. The second coil generates a magnetic field with N pole on the left and S pole on the right, which generates a thrust to the left on the mover and increases the moving force of the mover. When the mover moves to the point where the two ends of the first coil overlap, the power supply of the two coils is disconnected, and the direction of At the end of the movement, when the mover is located on the left side of the stator, the second coil on the right is connected to a DC power supply with positive on the left and negative on the right. The second coil generates a magnetic field with S pole on the left and N pole on the right, which generates an attraction to the right on the mover and causes the mover to move to the right. After the mover moves to the right a certain position, the first coil on the left is connected to a DC power supply with negative on the left and positive on the right. The first coil generates a magnetic field with N pole on the left and S pole on the right, which generates a thrust to the right on the mover and increases the movement force of the mover. When the mover moves to the point where the two ends of the second coil overlap, the power supplies of the two coils are disconnected and the movement in this direction ends. In this way, the reciprocating linear motion of the mover is realized, thereby driving the piston to perform compression work in the sliding chamber.
[0011] The present invention provides a direct current direct push piston compressor. It has the following beneficial effects:
[0012] 1. The present invention further reduces production costs by eliminating the motor part of the original piston compressor, and uses electromagnetic direct drive to reciprocate the piston, without a rotation conversion line, the piston movement and electromagnetic push and pull are on the same straight line, the piston connecting rod is fixedly connected to the permanent magnet, and there is no friction in the motor, thereby simplifying the structure of the mechanical part and avoiding energy waste.
[0013] 2. The original piston compressor of the present invention generates centrifugal force due to rotational motion, which wastes part of the energy efficiency, and the direction of the force generated is not in the same straight line as the direction of the piston. The resistance and force of the electromagnetic direct-push compressor are in the same straight line when working, and the directions are opposite, so the efficiency is high. In addition to the original friction between the piston and the piston ring, there is only friction on the push rod positioning frame, which improves energy efficiency.
[0014] 3. The present invention eliminates the use of a crankshaft, thereby avoiding the problem that the working stroke of the original piston compressor is limited by the crankshaft movement radius. This design does not have this problem and can be increased by lengthening the coil length and the mover magnet length or increasing the coil group, so that the piston compressor has no working stroke limit.
[0015] 4. The direction of the force and the direction of the piston in the present invention are not in the same straight line. This is due to the physical forced guidance of the piston ring, which makes the piston move along the piston ring and produces efficient wear. However, the resistance and force of the electromagnetic direct-push compressor are in the same straight line during operation, which reduces the wear and increases the durability. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional diagram of the DC direct-push piston compressor of the present invention;
[0017] Figure 2 It is a schematic diagram of an explosion of a DC direct-push piston compressor of the present invention;
[0018] Figure 3 It is a cross-sectional schematic diagram of a DC direct-push piston compressor of the present invention;
[0019] Figure 4 This is a schematic diagram of the mover of the present invention being on the right side of the stator, with the N pole of the mover on the left and the S pole on the right;
[0020] Figure 5 The coil on the left of the present invention generates a magnetic field with an S pole on the left and an N pole on the right, which generates an attraction to the left on the mover, and the mover moves to the left;
[0021] Figure 6 The schematic diagram of the present invention is that the coil on the right generates a magnetic field with an N pole on the left and an S pole on the right, which generates a leftward thrust on the mover and increases the moving force of the mover;
[0022] Figure 7 This is a schematic diagram of the acceleration of the movement in this direction when the mover of the present invention moves to the left and the two ends of the coil overlap and the power supply of the two coils is disconnected;
[0023] Figure 8 The right coil of the present invention generates a power supply with an S pole on the left and an N pole on the right, which generates a rightward suction force on the mover, and the mover moves to the right;
[0024] Fig. 9 The left coil of the present invention has a magnetic field of N on the left and S on the right, which generates a rightward thrust on the mover to increase the moving force of the mover;
[0025] Fig.10 This is a schematic diagram of the acceleration of movement in this direction when the mover moves to the right where the two ends of the coil overlap and the power supply of the two coils is disconnected.
[0026] Among them, 1. the first connecting member; 2. the second connecting member; 3. the piston ring; 4. the piston; 5. the mover; 6. the push rod fixing frame; 7. the first coil; 8. the second coil; 9. the separating ring; 10. the coil seat; 11. the push rod; 12. the sliding chamber. DETAILED DESCRIPTION
[0027] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0028] Example:
[0029] Please see attached Figure 1 -Attached Fig.10 The embodiment of the present invention provides a DC direct-push piston compressor, including a piston ring 3, wherein the left and right sides of the piston ring 3 are fixedly connected with a first connecting member 1, the left side of the first connecting member 1 is fixedly connected with a push rod fixing frame 6, the left side of the push rod fixing frame 6 is fixedly connected with a second connecting member 2, the left side of the second connecting member 2 is fixedly connected with a coil seat 10, a separator ring 9 is fixedly connected at the center position of the outer surface of the coil seat 10, a mover 5 is slidably connected to the inner diameter of the coil seat 10, a push rod 11 is fixedly connected at the center position of the right end of the mover 5, a piston 4 is fixedly connected to the right end of the push rod 11, a sliding cavity 12 is opened in the inner diameter of the piston ring 3, the piston 4 is slidably connected to the sliding cavity 12, a first coil 7 is arranged on the right side of the separator ring 9, a second coil 8 is arranged on the left side of the separator ring 9, and the first coil 7 and the second coil 8 are both located on the surface of the coil seat 10.
[0030] The piston ring 3 is located at the key core position of the entire structure. Its left and right sides are firmly and evenly fixedly connected to the first connecting piece 1 through high-precision technology. This tight connection method is not just a simple physical combination, but also ensures that during the operation of the compressor, the force can be transmitted evenly and smoothly, thereby maintaining the high stability of the structure and reducing the risk of deformation or damage due to uneven force.
[0031] The first connecting member 1 on the left side extends further to the left along the axial direction, and is tightly fixedly connected to the push rod fixing frame 6 with extremely precise positioning and firm combination. The push rod fixing frame 6 plays a vital supporting and fixing role in the entire structure, and it provides a solid foundation for the connection and movement of subsequent components.
[0032] The center position of the right end of the mover 5 is fixedly connected to the push rod 11 through a high-strength connecting piece. This connection must be able to withstand the strong power transmitted by the mover 5 without loosening or deformation. The right end of the push rod 11 is tightly connected to the piston 4 in a precise matching manner, thereby achieving effective and accurate transmission of power from the mover 5 to the piston 4, ensuring that the piston 4 can reciprocate according to the design requirements and realize the compression function.
[0033] The mover 5 is a columnar permanent magnet, and the magnetic poles of the mover 5 are at the left and right ends.
[0034] The coil seat 10 is a stator. The first coil 7 and the second coil 8 are hollow coils wound by enameled wires. The first coil 7 and the second coil 8 are sleeved on the surface of the coil seat 10 as a stator.
[0035] When the mover 5 is on the right side, the first coil 7 is connected to a DC power supply with positive on the left and negative on the right to generate an attraction force to the left. After the mover 5 moves to a certain position, the second coil 8 is connected to a DC power supply with negative on the left and positive on the right to generate a thrust force to the left.
[0036] When the mover 5 is on the left, the second coil 8 is connected to a DC power supply with positive on the left and negative on the right to generate an attraction to the right. After the mover 5 moves to a certain position, the first coil 7 is connected to a DC power supply with negative on the left and positive on the right to generate a thrust to the right.
[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A direct current piston compressor, comprising a piston ring (3), characterized in that: The piston ring (3) is fixedly connected to a first connecting member (1) on both sides. The first connecting member (1) on the left side is fixedly connected to a push rod fixing frame (6) on the left side. The push rod fixing frame (6) is fixedly connected to a second connecting member (2) on the left side. The second connecting member (2) is fixedly connected to a coil seat (10) on the left side. A separator ring (9) is fixedly connected to the center position of the outer surface of the coil seat (10). The inner diameter of the coil seat (10) is slidably connected to a mover (5). A push rod (11) is fixedly connected to the center position of the right end of the mover (5). The right end of the push rod (11) is fixedly connected to a piston (4). A sliding cavity (12) is provided on the inner diameter of the piston ring (3). The piston (4) is slidably connected to the sliding cavity (12). A first coil (7) is provided on the right side of the separator ring (9). A second coil (8) is provided on the left side of the separator ring (9). Both the first coil (7) and the second coil (8) are located on the surface of the coil seat (10).
2. The DC direct-push piston compressor according to claim 1, characterized in that: The mover (5) is a cylindrical permanent magnet, and the magnetic poles of the mover (5) are at the left and right ends.
3. The DC direct-push piston compressor according to claim 1, characterized in that: The coil seat (10) is a stator, the first coil (7) and the second coil (8) are both hollow coils wound by enameled wire, and the first coil (7) and the second coil (8) are sleeved on the surface of the coil seat (10) as a stator.
4. The DC direct-push piston compressor according to claim 1, characterized in that: When the mover (5) is on the right side, the first coil (7) is connected to a DC power supply with positive on the left and negative on the right to generate an attraction force toward the left. After the mover (5) moves to a certain position, the second coil (8) is connected to a DC power supply with negative on the left and positive on the right to generate a thrust force toward the left.
5. The DC direct-push piston compressor according to claim 1, characterized in that: When the mover (5) is on the left side, the second coil (8) is connected to a DC power supply with positive on the left and negative on the right to generate an attractive force toward the right. After the mover (5) moves to a certain position, the first coil (7) is connected to a DC power supply with negative on the left and positive on the right to generate a thrust toward the right.