The present application claims priority to Chinese patent application No. 202010287697.0 filed with the Chinese National Intellectual Property Administration on Apr. 13, 2020, titled “NEW COMPRESSOR”, the entire content of which is incorporated into the present application by reference.
The present disclosure relates to the field of mechanical technology; in particular, the present disclosure relates to a compressor.
A compressor is a driven fluid machine which pressurizes a low-pressure gas into a high-pressure gas. It suctions in a low-temperature and low-pressure gas from the outside, drives a piston through operation of an electric motor so as to compress the gas, and discharges a high-temperature and high-pressure gas to a discharge pipe.
Traditional compressors are divided into single-cylinder compressors and multi-cylinder compressors, in each of which an electric motor is used to directly drive the compressor so that a crankshaft rotates and drives a connecting rod to make a piston reciprocate, thereby causing a change in the volume of the cylinder.
The single-cylinder compressor has a low compression efficiency and a poor compression capacity, and it is impossible for it to obtain a high-pressure gas through a single compression. The electric motor and the piston generate a large amount of heat during use and are prone to damage, which will reduce a service life of the compressor. The multi-cylinder compressor has a large volume, a complicated structure, and a high production cost; moreover, a failure rate is high during asynchronous compressions of multiple pistons, and the maintenance is difficult, which also further reduces the compression efficiency.
In view of the above problems, an embodiment of the present disclosure is proposed to provide a compressor that overcomes or at least partially solves the above problems.
In order to solve the above problems, the embodiment of the present disclosure discloses a compressor, comprising a cylinder block and a piston assembly arranged inside the cylinder block;
Optionally, the cylinder block is provided with a penetrating spacer block, the spacer block extends from a top to a bottom of the cylinder block, a space between an outer wall of the spacer block and an inner wall of the cylinder block defines the first compression chamber, and an inner wall space of the spacer block defines the second compression chamber, to allow the first compression chamber and the second compression chamber both to be arranged inside the cylinder block, and to allow the second compression chamber to be surrounded by the first compression chamber.
Optionally, the first compression chamber is provided with a first gas inlet port and a first gas outlet port, the second compression chamber is provided with a second gas inlet port and a second gas outlet port, both the first gas inlet port and the second gas outlet port communicate with an outer wall of the cylinder block, and the first gas outlet port and the second gas inlet port communicate with the gas storage chamber.
Optionally, the first compression chamber is provided with a first opening and closing space, one end of the first gas inlet port communicates with the first opening and closing space, the first opening and closing space is provided with a first gas inlet valve, and an end where the gas storage chamber and the first gas outlet port are connected is provided with a first gas outlet valve; and wherein the second compression chamber is provided with a second opening and closing space, one end of the second gas inlet port and one end of the second gas outlet port communicate with the second opening and closing space, the second opening and closing space is provided with a second gas inlet valve, and the other end of the second gas inlet port is provided with a second gas outlet valve;
Optionally, further comprising a filter component arranged at the first gas inlet port, and an elastic component which is connected to the second gas outlet valve by touching;
Optionally, further comprising a cylinder liner arranged on an inner wall of the cylinder block, a sealing ring is arranged at a position where the cylinder liner touches the inner wall of the cylinder block, and the cylinder block is provided with a spacer block;
Optionally, a bottom of the cylinder block is equipped with lubricating oil or grease;
Optionally, the first piston is provided with a positioning seat, the second piston is arranged on the positioning seat, and the second piston is pushed by the positioning seat to move synchronously with the first piston; and
Optionally, further comprising a heat dissipation component for dissipating heat, and a purification component for detecting and filtering the gas after the second compression;
Optionally, the movable assembly comprises a connecting rod connected to the first piston and the second piston, a crankshaft connected to the connecting rod, a gear connected to the crankshaft, and an electric motor connected to the gear, and wherein the crankshaft is provided with a crankshaft bearing, an oil seal and a gear bearing, the crankshaft bearing is connected to the oil seal, the crankshaft is connected to the gear through the crankshaft bearing and the gear bearing, the cylinder block is provided with a housing, and the electric motor is arranged in the housing.
The embodiment of the present disclosure has the following advantages: the present disclosure proposes a compressor, which may include a cylinder block and a piston assembly arranged inside the cylinder block. The cylinder block of the present disclosure is divided into a first compression chamber and a second compression chamber. Two times of compression can be realized in a single cylinder block. Moreover, a first piston and a second piston can move synchronously in the cylinder block, which can greatly reduce the volume, improve the compression efficiency, increase the compression capacity, and meet more compression requirements. Furthermore, through the transmission of gear, the amount of heat generated by the electric motor and the pistons during use can be reduced, which reduces work wear, while also being capable of prolonging the service life of the entire compressor and reducing the operating and use cost.
Described above is merely an overview of the inventive scheme. In order to more apparently understand the technical means of the disclosure to implement in accordance with the contents of specification, and to more readily understand above and other objectives, features and advantages of the disclosure, specific embodiments of the disclosure are provided hereinafter.
In order to explain the technical solution in the embodiments of the disclosure or related arts more clearly, the drawings used in the description of the embodiments or related arts will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the disclosure, and for those of ordinary skill in the art, other drawings can be obtained according to these drawings without paying creative labor.
To make the above purposes, features and advantages of the present disclosure clearer and easily understood, the present disclosure will be described in further detail below in conjunction with the accompanying drawings and specific implementations.
One of the core ideas of the embodiment of the present disclosure is to provide two different compression chambers in a cylinder block, so that two times of compression are performed in the two different compression chambers, which enables the machine to have a small volume and the compressed gas to have a high pressure. In addition, a heat dissipation component is provided on the side of the cylinder block, which can effectively solve the problem of cooling the compressor and increase the service life of the entire compressor.
With reference to
Specifically, with reference to
It should be noted that the cylinder block 1 may be made of a material which is resistant to high temperature and has a high hardness, such as an alloy, a plastic or an organic material. The cylinder block 1 may be a cube, a cylinder, or an irregularly-shape body. The volume of the cylinder block 1 may be adjusted according to actual needs. If a large volume of gas needs to be compressed, the volume of the cylinder block 1 can be appropriately increased, so that the volume of the gas in the cylinder block 1 can be increased. If a small volume of gas needs to be compressed, the volume of the cylinder block 1 can be appropriately reduced, so that the volume of the gas in the cylinder block 1 can be reduced.
With reference to
With reference to
Preferably, a filter material of the filter 31 may be composed of various different filter materials such as filter cotton and/or molecular sieve and/or activated carbon, etc. The use of various different filter materials can effectively improve the filtering effect. In actual use, the technician may make adjustments according to actual needs, to which the present disclosure does not impose any limitation. In addition, it should be noted that the vent valve 33 and the safety valve 34 may be adjusted according to the actual volume of the cylinder block 1 or the volume of the compressed gas or the pressure of the compressed gas, and the pressure gauge 35 may also be adjusted according to actual test requirements. The output connector may be specifically adjusted according to a connector of the external device.
In use, after the gas is compressed in the cylinder block 1, the compressed gas can be discharged. The compressed gas may be filtered by the filter 31 and flow into the pressure gauge 35 for pressure test, and finally may be discharged from the vent valve 33. If the compressed gas needs to be delivered to the external device, the output connector 36 may be connected to the external device, and then the compressed gas can be discharged.
Reference is made to
With reference to
In one of the optional embodiments, a housing 11 may be provided on the side of the cylinder block 1, and the electric motor 26 may be fixedly arranged in the housing so that the electric motor 26 can be protected to avoid damage of the electric motor 26. It should be noted that the housing 11 may be made of a material such as metal or alloy or high-temperature resistant organic material, etc. Preferably, the housing may be a protective sheet metal. In one of the optional embodiments, the housing 11 may also be provided with a handle 111, which may be configured for the user or technician to lift the entire compressor, so as to facilitate the technician in carrying the compressor.
In addition, it should be noted that the electric motor 26 may be a high-power motor, or a high-speed motor, or a high-torque motor. The type of the electric motor 26 may be adjusted according to actual needs. Specifically, by setting a gear ratio, for example, by adjusting the gear ratio of the gear 25, a high-speed electric motor can be converted into a high-torque and low-speed motor, so that the electric motor 26 can drive the crankshaft 24 to move back and forth, thereby reducing the amount of heat generated by the cylinder block 1. In addition, the electric motor 26 may be an electric motor having a voltage of 12V, 24V, 110V, 220V or another voltage, to which the present disclosure does not impose any limitation.
With reference to
Reference is made to
In this embodiment, the piston 21 includes a first piston 211 and a second piston 212. The second piston 212 is arranged inside the first piston 211. The first piston 211 may be connected to the connecting rod 23 and controlled by the connecting rod 23 so as to reciprocate inside the cylinder block 1. The crankshaft 24 and the gear 25 are arranged at a bottom of the cylinder block 1 so that the connecting rod 23 is pushed from the bottom, and then the connecting rod 23 drives the first piston 211 and the second piston 212 to reciprocate up and down.
In a specific implementation, a positioning seat 213 may be provided in the first piston 211, and a size of the positioning seat 213 may be matched with a size of the second piston 212 so that the second piston 212 may be arranged in the middle of the positioning seat 213. By providing the positioning seat 213, a support can be provided for the upward movement of the second piston 212. When the entire compressor needs to be cleaned and arranged, the disassembly and assembly also become more convenient. Moreover, the positioning seat 213 enables the second piston 212 to move synchronously with the first piston 211. When the connecting rod 23 pulls the first piston 211 from a top dead center to a bottom dead center, the second piston 212 also moves downward at the same time under the action of gravity, and also moves from a top dead center to a bottom dead center; and when the connecting rod 23 pushes the first piston 211 from the bottom dead center to the top dead center, the second piston 212 also moves from the bottom dead center to the top dead center at the same time due to being pushed by the positioning seat 213. The positioning seat 213 not only can ensure the synchronous movement of the first piston 211 and the second piston 212, but also can reduce the load of the electric motor and reduce the use loss of mechanical parts.
In one of the optional embodiments, one or more leak holes 214 may be provided around a periphery of the positioning seat 213, and the leak holes 214 can allow the lubricating oil at the bottom of the cylinder block 1 to flow to a periphery of the second piston 212 so as to lubricate the second piston 212, which not only can reduce friction of the second piston 212 and lower the temperature of the second piston 212 during the working process, but also can improve the working efficiency and service life of the second piston 212.
In this embodiment, an interior of the cylinder block 1 may have a shape of a cylinder, and a penetrating spacer block 13 is provided inside the cylinder block 1. The spacer block 13 has a cylindrical shape and may extend from the top to the bottom of the cylinder block 1. As can be seen from
The spacer block 13 can divide the interior of the cylinder block 1 into two chambers for compression by two pistons, thereby reducing the volume of the entire cylinder block and improving the compression efficiency.
In a specific implementation, the shape of the first piston 211 can match with the space in the first compression chamber 4, which not only enables the first piston 211 to move more flexibly in the first compression chamber 4, but also can increase the compression efficiency.
As can be seen from
In actual operation, in order to make the cylinder liner 14 abut with the cylinder block 1, a sealing ring 141 may be provided on the cylinder liner 14, and the sealing ring 141 may be arranged in an area where the cylinder liner 14 and the cylinder block 1 are connected by touching. The sealing ring 141 can make the cylinder liner 14 and the inner wall of the cylinder block 1 be sealed more firmly.
With reference to
Optionally, in an area where the first compression chamber 4 communicates with the first gas inlet port 41, the first compression chamber 4 is provided with a first opening and closing space 43, so that an end of the first gas inlet port 41 can communicate with the first opening and closing space 43. A first gas inlet valve 44 is provided in the first opening and closing space 43. The first gas inlet valve 44 may be configured to close or open the first gas inlet port 41. Specifically, with reference to
In one of the preferred embodiments, the first gas inlet port 41 may be provided with a filter component 45, and the filter component 45 may be a filter cartridge. The filter cartridge may be configured to filter the gas entering the first compression chamber 4 for one time, which can make the compressed air cleaner, and meanwhile can prevent impurities and dust from entering the interior of the cylinder block 1 and affecting the movement of the first piston 211.
With reference to
In actual operation, since the first piston 211 reciprocates repeatedly, the compressed gas will be generated without stop. In order to prevent the gas generated from the previous compression and the gas generated from the next compression from being accumulated in the gas storage chamber 5, a first gas outlet valve 46 may be provided at a position where the first gas outlet port 42 is connected to the gas storage chamber 5, and the first gas outlet valve 46 may be provided inside the gas storage chamber 5.
In actual operation, when the first piston 211 moves from the top dead center to the bottom dead center in the first compression chamber 4, the gas in the first compression chamber 4 that was compressed by the first piston 211 at the last time is already stored in the gas storage chamber 5, so the pressure in the gas storage chamber 5 is higher than the pressure in the first compression chamber 4, and therefore the first gas outlet valve 46 can seal the first gas outlet port 42; and when the first piston 211 moves from the bottom dead center to the top dead center in the first compression chamber 4, the gas stored in the chamber 5 after the first compression is discharged, and the gas pressure in the first compression chamber 4 gradually increases, so the pressure in the first compression chamber 4 is higher than the pressure in the gas storage chamber 5. Therefore, the gas in the compression chamber 4 pushes the first gas outlet valve 46 away, and the first gas outlet valve 46 opens the first gas outlet port 42, so that the gas in the first compression chamber 4 can enter the gas storage chamber 5. The above process is repeated in such a way.
In this embodiment, the use of the gas storage chamber 5, the first gas inlet valve 44 and the first gas outlet valve 46 enable the entire compressor to achieve the process of natural suction and compression of gas, which can improve the compression efficiency; at the same time, the compressed gas in the first compression chamber 4 will not mix with the gas in the gas storage chamber 5.
With reference to
Specifically, with reference to
In order to prevent the gas in the second compression chamber 6 from mixing with the gas in the gas storage chamber 5, and to prevent the gas in the gas storage chamber 5 from mixing with the gas after the second compression, the second compression chamber 6 is provided with a second opening and closing space 63. One end of the second gas inlet port 61 communicates with the second opening and closing space 63, and the other end of the second gas inlet port 61 communicates with the gas storage chamber 5. One end of the second gas outlet port 62 communicates with the second opening and closing space 63, and the other end of the second gas outlet port 62 communicates with the outer wall of the cylinder block 1. A second gas inlet valve 64 is provided in the second opening and closing space 63, and the second gas inlet valve 64 is configured to seal or open the second gas inlet port 61. A second through hole 67 is provided in the second gas inlet valve 64, and the second through hole 67 can match with the second gas outlet port 62.
In addition, in order to avoid leakage of gas pressure in the second compression chamber 6, a second gas outlet valve 65 is provided at an end where the second gas outlet port 62 and the second opening and closing space 63 are connected. The second gas outlet valve 65 may be configured to open or seal the second gas outlet port 62. An elastic component 66 is provided on the side of the second gas outlet valve 65. The elastic component 66 may be connected to the second gas outlet valve 65 by touching, and the elastic component 66 may be configured to reset the second gas outlet valve 65.
With reference to
In this embodiment, the gas after the first compression stored in the gas storage chamber 5 is suctioned into the second compression chamber 6, and is compressed for the second time by the second piston 212 in the second compression chamber 6, so that multiple times of compression of gas are achieved, the efficiency of gas compression is improved, and the gas compression ratio is increased. Moreover, the second gas inlet valve 64 and the second gas outlet valve 65 can prevent the gas after the second compression in the second compression chamber 6 from mixing with the gas after the first compression stored in the gas storage chamber 5, so that the gas after the first compression can be isolated from the gas after the second compression.
With reference to
At the beginning of the operation, there can be no gas in each of the first compression chamber 4, the gas storage chamber 5 and the second compression chamber 6. The connecting rod 23 pulls the first piston 211 and the second piston 212 to move from the top dead centers to the bottom dead centers at the same time, and the gas outside the cylinder block 1 enters the first compression chamber 4. The gas storage chamber 5 does not have the high-pressure gas after the compression in the first compression chamber 4, and there is no gas after the first compression entering the second compression chamber 6. Then, the connecting rod 23 pushes the first piston 211 and the second piston 212 to move from the bottom dead centers to the top dead centers at the same time. The first piston 211 compresses the gas in the first compression chamber 4 for the first time to obtain the gas after the first compression. The gas after the first compression is compressed into the gas storage chamber 5. Since the second compression chamber 6 does not have the gas after the compression in the first compression chamber 4, no gas will be discharged from the second compression chamber 6; then, the connecting rod 23 pulls the first piston 211 and the second piston 212 to move from the top dead centers to the bottom dead centers at the same time, the gas outside the cylinder block 1 enters the first compression chamber 4 again, and at the same time, the gas after the first compression stored in the gas storage chamber 5 enters the second compression chamber 6; then, the connecting rod 23 pushes the first piston 211 and the second piston 212 to move from the bottom dead centers to the top dead centers at the same time, and the first piston 211 once again compresses the gas in the first compression chamber 4 into the gas storage chamber 5, whereas the second piston 212 compresses the gas in the second compression chamber 6 for the second time to obtain the gas after the second compression, and the gas after the second compression is discharged. This process in repeated in this way. Through the above operations, the gas outside the cylinder block 1 can be compressed for two times.
In a specific implementation, since the first piston 211 and the second piston 212 need to continuously operate at a high speed, in order to improve the efficiency of the operation of various components and reduce the risk of damage, a certain volume of lubricating oil or grease may be provided at the bottom of the cylinder block 1. When the first piston 211 and the second piston 212 are working, the lubricating oil or lubricant at the bottom of the cylinder block 1 can reduce friction, protect various components, and meanwhile can also play the roles of lubrication, auxiliary cooling, anti-rust, cleaning, sealing, buffering and the like.
With reference to
It should be noted that the breathing hole is a through hole, the breathing hole may extend outward from the cylinder block 1, and the position and size of the breathing hole may be adjusted according to actual needs. The oil mirror may be a transparent glass or lens. The user can directly observe the volume of the lubricating oil at the bottom of the cylinder block 1 through the oil mirror. In actual operation, a dividing ruler or scale may be set in the oil mirror so that the volume of the lubricating oil can be known more accurately. In addition, the oil drain hole may be blocked by an oil plug. When the volume of the lubricating oil needs to be adjusted, the user may remove the oil plug and add or reduce the lubricating oil.
With reference to
In another optional embodiment, it is also possible for the first piston 211 to be not provided with the gas ring 18 and the oil scraper ring 19; rather, the first compression chamber 4 may be sealed and the oil in the first compression chamber 4 may be scraped by using the first piston 211 alone.
In a specific implementation, the manufacturing precision of the first piston 211 and the first compression chamber 4 may be increased during the design and production, so that the first piston 211 may abut with the inner wall of the first compression chamber 4 as much as possible. For example, a diameter of an inner ring of the first compression chamber 4 is 50 mm, and a diameter of the first piston 211 is 49.99 mm, so that there is a gap of 0.01 mm between the first piston 211 and the first compression chamber 4, thus making it possible to make the first piston 211 and the inner wall of the first compression chamber 4 be in a nearly completely abutting state. In use, since the first piston 211 moves at a high speed and it almost abuts with the inner wall of the first compression chamber 4, the first piston 211 can scrape away the lubricating oil on the inner wall of the first compression chamber 4, and since the first piston 211 and the first compression chamber 4 almost completely abut with each other, the air at the bottom cannot enter the first compression chamber 4, so that the first piston 211 can seal the first compression chamber 4.
The present disclosure provides a compressor, which may include a cylinder block and a piston assembly arranged inside the cylinder block. The compressor provided by the present disclosure has a simple structure and is convenient to use. A spacer block is provided in the cylinder block, and the interior of the cylinder block can be divided into two compression chambers, so that two times of compression can be realized in one cylinder block. Moreover, the volume of the cylinder block can be reduced, and the production cost can be reduced. In use, the first piston and the second piston can perform a compression movement synchronously in the cylinder block, which can greatly improve the compression efficiency, increase the compression capacity, and meet more compression requirements. Furthermore, the electric motor and the pistons can be cooled during use, which can reduce work wear, while also being capable of prolonging the service life of the entire compressor and reducing the operating and use cost.
The embodiments in this specification are described progressively, the differences from other embodiments are emphatically stated in each embodiment, and the similarities of these embodiments may be cross-referenced.
Although the preferred embodiments of the embodiments of the present disclosure have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present invention.
Finally, it should be noted that relational terms such as “first” and “second” in this specification are merely used to distinguish one entity or operation from the other one, and do not definitely indicate or imply that these entities or operations have any actual relations or sequences. In addition, the term “comprise” or “include” or other variations are intended to refer to non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only comprises these elements listed, but also comprises other elements that are not clearly listed, or inherent elements of the process, method, article or device. Unless otherwise clearly specified, an element defined by the expression “comprise a” shall not exclusive of other identical elements in a process, method, article or device comprising said element.
The compressor provided by the present disclosure are introduced in detail above, specific examples are used in this specification to expound the principle and implementation of the present disclosure, and the description of the above embodiments is merely used to assist those skilled in the art in understanding the method and core concept thereof of the present disclosure. In addition, those ordinarily skilled in the art can make changes to the specific implementation and invention scope based on the concept of the present disclosure. So, the contents of the specification should not be construed as limitations of the present disclosure.
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Number | Date | Country | |
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20210404455 A1 | Dec 2021 | US |
Number | Date | Country | |
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Parent | PCT/CN2020/095580 | Jun 2020 | US |
Child | 17473335 | US |