One-way pulse piston

Abstract

The invention discloses a one-way pulse piston, and belongs to the field of pistons, the one-way pulse piston comprises a shell and a piston body, the upper side and the lower side of the shell are respectively provided with a compression bin and an inlet bin, the compression bin is provided with an outlet, and the inlet bin is provided with an inlet; the piston body is arranged in the shell and located between the inlet and the outlet, a Tesla valve structure is arranged in the piston body and comprises a first Tesla unit and a second Tesla unit which are arranged in a staggered mode, the first Tesla unit comprises a first straight flow section and a first arc-shaped section, and the second Tesla unit comprises a second straight flow section and a second arc-shaped section. The piston is combined with the one-way valve of the Tesla, the one-way flow function and the piston pressurization function are achieved, the structure is simple, the one-way piston body is not provided with a spring or a quick-wear part, and the failure rate is reduced; reverse flow channels of the first Tesla unit and the second Tesla unit are both in a shrinking shape, and reverse flow is blocked through shrinking of the channels.

Description

Technical Field

[0001] The invention relates to the field of pistons, in particular to a one-way pulse piston. Background Art

[0002] The pulse piston is a key component in the electromagnetic pulse valve. It combines the principles of electromagnetism and mechanics to achieve fluid control. The electromagnetic pulse piston valve is an electromagnetic control element, usually used in hydraulic and pneumatic systems to control the switch of fluid media.

[0003] The working principle of electromagnetic pulse piston valve is based on electromagnetic induction and magnetic force. When the electromagnet is energized, a strong magnetic field is generated around the iron core, which attracts the piston and moves it, causing the valve to open or close. When the electromagnet is de-energized, the magnetic field disappears, and the piston is acted upon by elastic elements (such as springs) and returns to its initial position, and the valve also returns to its original state. By quickly switching the electromagnet on and off, the on and off of the fluid medium can be controlled, thereby achieving control of the hydraulic system or pneumatic system.

[0004] The throttling device of the air conditioner is mainly used in the pipeline where the refrigerant of the outdoor unit flows out of the condenser. The purpose is to ensure that the refrigerant entering the indoor unit evaporator is in liquid state by increasing the supercooling degree of the refrigerant, prevent the refrigerant from evaporating prematurely, and cool down and reduce the pressure of the refrigerant. In the prior art, most air conditioners achieve throttling through throttling valves such as electronic expansion valves and thermal expansion valves, but their structures are complex, the control difficulty and cost are relatively high, and they are easily damaged after long-term use. Summary of the invention

[0005] The present invention aims at the deficiencies in the prior art and provides a one-way pulse piston to improve the one-way flow. In order to solve the above technical problems, the present invention solves them through the following technical solutions.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A one-way pulse piston comprises a shell and a piston body, wherein a compression chamber and an entry chamber are respectively arranged on the upper and lower sides of the shell, the compression chamber is arranged with a discharge port, and the entry chamber is arranged with an entry port; the piston body is arranged in the shell, the piston body is located between the entry port and the discharge port, a Tesla valve structure is arranged in the piston body, the Tesla valve structure comprises a first Tesla unit and a second Tesla unit arranged alternately, the first Tesla unit comprises a DC segment 1 and an arc segment 1, the second Tesla unit comprises a DC segment 2 and an arc segment 2, the end of the DC segment 1 is connected with the end of the arc segment 2, and an AC electromagnetic coil is sleeved on the outer side of the shell.

[0007] Preferably, the two ends of the Tesla valve structure have an inlet and an outlet, the Tesla valve structure has a forward flow channel and a reverse flow channel, and the forward flow channel of the Tesla valve structure is in the direction from the inlet to the outlet.

[0008] Preferably, the reverse flow channels of the first Tesla unit and the second Tesla unit are both in a shrinking shape.

[0009] Preferably, an arc segment 1 of one of the first Tesla units is located at an end of a DC segment 1 of an adjacent first Tesla unit, and an elastic extension plate 1 is provided at the intersection of the arc segment 1 and the adjacent DC segment 1.

[0010] Preferably, a side surface of the extension plate 1 is coplanar with a side surface of the adjacent DC segment 1.

[0011] Preferably, the arc segment 2 of one of the second Tesla units is located at the end of the DC segment 2 of the adjacent second Tesla unit, and an elastic extension plate 2 is provided at the intersection of the arc segment 2 and the adjacent DC segment 2.

[0012] Preferably, a side surface of the second extension plate is coplanar with a side surface of the adjacent second DC segment.

[0013] Preferably, the inlet is connected to the inlet chamber, and the outlet is located below the compression chamber. Compared with the prior art, the present invention has the following beneficial effects: Combining the piston with Tesla's one-way valve has both the function of one-way flow and the function of piston pressurization. The structure is simple, so that the one-way piston body has no spring or wearing parts, reducing the failure rate; The reverse flow channels of the first Tesla unit and the second Tesla unit are both in a shrinking shape, and the reverse flow is blocked by shrinking the channels; When the flow is reversed, the extension plate 1 and the extension plate 2 will be impacted, and the reverse flow channel will be further reduced. The reverse force of the extension plate 1 and the extension plate 2 will further block the flow. The extension plate 1 and the extension plate 2 are both provided with multiple, which can reduce the number of the first Tesla unit and the second Tesla unit, and the effect of one-way flow can be achieved; The AC electromagnetic coil is located in the middle of the shell, so that the heating area of ​​the liquid is increased when it passes through the Tesla valve mechanism on the piston, and the heating effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram showing that the piston body of the present invention is located on the upper side.

[0017] Figure 3 It is a schematic diagram showing that the piston body of the present invention is located at the lower side.

[0018] Figure 4 It is a schematic diagram of the extension plate 1 and the extension plate 2 of the present invention.

[0019] Explanation of figure numbers: 1. Shell; 11. Compression chamber; 12. Inlet chamber; 13. Exhaust port; 14. Inlet port; 2. Piston body; 3. Tesla valve structure; 31. First Tesla unit; 311. DC segment one; 312. Arc segment one; 32. Second Tesla unit; 321. DC segment two; 322. Arc segment two; 33. Inlet port; 34. Outlet port; 35. Extension plate one; 36. Extension plate two; 4. AC electromagnetic coil. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below with reference to the accompanying drawings.

[0021] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be used for other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0022] Those skilled in the art should understand that, in the disclosure of the present invention, the directions or positions indicated by the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, which are only simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0023] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0024] See also Figure 1-Figure 4A one-way pulse piston comprises a shell 1 and a piston body 2. A compression chamber 11 and an entry chamber 12 are respectively arranged on the upper and lower sides of the shell 1. A discharge port 13 is arranged on the compression chamber 11, and an entry port 14 is arranged on the entry chamber 12. The entry port 14 is connected with the entry chamber 12, and the discharge port 13 is located below the compression chamber 11.

[0025] The piston body 2 is arranged in the housing 1, and the piston body 2 is located between the inlet 14 and the outlet 13. The piston body 2 is composed of two symmetrical fixed bodies, and can also be formed by 3D printing. Between the inlet chamber 12 and the compression chamber 11 is a mobile chamber where the piston body 2 moves. The four sides of the piston body 2 are in contact with the inner wall of the mobile chamber of the housing 1. A Tesla valve structure 3 is arranged in the piston body 2. The Tesla valve structure 3 includes a first Tesla unit 31 and a second Tesla unit 32 arranged alternately. The first Tesla unit 31 includes a DC segment 1 311 and an arc segment 1 312. The second Tesla unit 32 includes a DC segment 2 321 and an arc segment 2 322. The end of the DC segment 1 311 is connected to the end of the arc segment 2 322. An AC electromagnetic coil 4 is sleeved on the outer side of the housing 1. By energizing the AC electromagnetic coil 4, the liquid passing through the piston body 2 is vaporized. The AC electromagnetic coil 4 is located in the middle of the housing 1, so that the heating area is increased and the effect is better.

[0026] The Tesla valve structure 3 has an inlet 33 and an outlet 34 at both ends. The Tesla valve structure 3 has a forward flow channel and a reverse flow channel. The forward flow channel of the Tesla valve structure 3 is in the direction from the inlet 33 to the outlet 34 .

[0027] The reverse flow channels of the first Tesla unit 31 and the second Tesla unit 32 are both in a shrinking shape. The channel from the DC section 1 311 to the arc section 1 312 is in a shrinking shape, and the channel from the DC section 2 321 to the arc section 2 322 is in a shrinking shape. The shrinkage of the channel blocks the reverse flow.

[0028] The arc segment 312 of a first Tesla unit 31 is located at the end of the DC segment 311 of the adjacent first Tesla unit 31. An elastic extension plate 35 is provided at the intersection of the arc segment 312 and the adjacent DC segment 311. One side of the extension plate 35 is coplanar with the side of the adjacent DC segment 311. The coplanarity will not block the forward flow, and the extension plate 35 further reduces the end of the arc segment 312, thereby achieving a better flow blocking effect. When the flow is reversed, the extension plate 35 is impacted and deformed, and the reverse force of the extension plate 35 further blocks the flow.

[0029] The arc segment 2 322 of a second Tesla unit 32 is located at the end of the DC segment 2 321 of the adjacent second Tesla unit 32. The intersection of the arc segment 2 322 and the adjacent DC segment 2 321 has an elastic extension plate 2 36. One side of the extension plate 2 36 is coplanar with the side of the adjacent DC segment 2 321. This coplanarity will not block the forward flow. The extension plate 2 36 further reduces the end of the arc segment 2 322 and also has a flow blocking effect. When the flow is reversed, the extension plate 2 36 is impacted, and the extension plate 2 36 is deformed. The reverse force of the extension plate 2 36 further blocks the flow. Multiple extension plates 1 35 and 2 36 are provided, which can reduce the number of the first Tesla unit 31 and the second Tesla unit 32, and the effect of one-way flow can be achieved. The above structure is simple, so that the one-way piston body 2 has no springs or wearing parts, reducing the failure rate.

[0030] The liquid flows into the inlet 14 into the inlet chamber 12, and then into the Tesla valve structure 3, and is heated by the electromagnetic coil during the flow process. The heated gas enters the compression chamber 11, and as the gas continues to enter, the gas pressure in the compression chamber 11 gradually increases. When the gas pressure in the compression chamber 11 reaches a certain level, the liquid will be squeezed and liquefied. This liquefaction process further increases the pressure in the compression chamber 11 and pushes the piston body 2 to move downward in the housing 1. When the piston body 2 passes over the discharge port 13, the liquid is discharged from the discharge port 13 through the heated gas. As the liquid is continuously discharged, the compression chamber 11 is gradually emptied. At this time, the piston body 2 begins to move upward under the push of the liquid below and returns to its initial position. In this way, the electromagnetic pulse piston completes a complete working cycle.

[0031] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A one-way pulse piston, characterized in that: include: A shell (1), wherein a compression chamber (11) and an inlet chamber (12) are respectively arranged on the upper side and the lower side thereof, wherein the compression chamber (11) is provided with an outlet (13), and the inlet chamber (12) is provided with an inlet (14); A piston body (2) is arranged in a housing (1), the piston body (2) being located between an inlet (14) and an outlet (13), a Tesla valve structure (3) being arranged in the piston body (2), the Tesla valve structure (3) comprising a first Tesla unit (31) and a second Tesla unit (32) being arranged alternately, the first Tesla unit (31) comprising a first DC segment (311) and a first arc segment (312), the second Tesla unit (32) comprising a second DC segment (321) and a second arc segment (322), the end of the first DC segment (311) being connected to the end of the second arc segment (322), and an AC electromagnetic coil (4) being sleeved on the outer side of the housing (1).

2. A one-way pulse piston according to claim 1, characterized in that: The Tesla valve structure (3) has an inlet (33) and an outlet (34) at both ends, and the Tesla valve structure (3) has a forward flow channel and a reverse flow channel. The forward flow channel of the Tesla valve structure (3) is in the direction from the inlet (33) to the outlet (34).

3. A one-way pulse piston according to claim 2, characterized in that: The reverse flow channels of the first Tesla unit (31) and the second Tesla unit (32) are both in a shrinking shape.

4. A one-way pulse piston according to claim 3, characterized in that: An arc segment 1 (312) of the first Tesla unit (31) is located at the end of a DC segment 1 (311) of an adjacent first Tesla unit (31), and an elastic extension plate 1 (35) is provided at the intersection of the arc segment 1 (312) and the adjacent DC segment 1 (311).

5. A one-way pulse piston according to claim 4, characterized in that: A side surface of the extension plate 1 (35) is coplanar with a side surface of the adjacent DC section 1 (311).

6. A one-way pulse piston according to claim 3, characterized in that: An arc segment 2 (322) of the second Tesla unit (32) is located at the end of a DC segment 2 (321) of an adjacent second Tesla unit (32), and a second elastic extension plate (36) is provided at the intersection of the arc segment 2 (322) and the adjacent DC segment 2 (321).

7. A one-way pulse piston according to claim 6, characterized in that: A side surface of the second extension plate (36) is coplanar with a side surface of the adjacent second DC section (321).

8. The one-way pulse piston according to claim 1, characterized in that: The inlet (14) is in communication with the inlet bin (12), and the outlet (13) is located below the compression bin (11).

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