Piston capable of rapidly dissipating heat

Abstract

The utility model relates to the field of pistons, in particular to a piston capable of dissipating heat quickly, which comprises a piston body, a piston rod is mounted at the bottom of the piston body in a penetrating manner, and an electric push rod is mounted at the bottom end of the piston rod; in the heat dissipation process of the piston body, heat generated by the combustion chamber is transmitted to the interior of the piston body through the groove, so that the heat is transmitted downwards, meanwhile, the electric push rod drives the heat dissipation plate to reciprocate in the piston body, and in the reciprocating operation process of the heat dissipation plate, external air is extracted through the air inlet hole and the first one-way valve, so that the heat dissipation efficiency is improved. And internal hot air is discharged to the outside of the piston body through the heat dissipation holes and the second one-way valve, the heat dissipation holes are designed in the inclined direction, the hot air can be sprayed to the bottom of the surface of the piston body when heat is discharged, and air inlet holes are designed in the transverse direction, so that external air which is not conducted by heat can be extracted during extraction.

Description

Technical Field

[0001] The utility model relates to the field of pistons, and particularly to a piston capable of quickly dissipating heat. Background Technique

[0002] A piston is a movable plug, usually used as a reciprocating part in the cylinder block of an automobile engine. The basic structure of the piston can be divided into a top, a head and a skirt. The top of the piston is the main part of the combustion chamber, and its shape is related to the selected combustion chamber form. Most gasoline engines use flat-top pistons, and its advantage is that the heat absorption area is small;

[0003] At present, the existing pistons work under the conditions of high temperature, high pressure, high speed and poor lubrication. The pistons are in direct contact with high-temperature gases, and the instantaneous temperature can reach more than 2500K. After retrieval, such as a piston and piston assembly with the authorization announcement number: CN211777738U, this piston carries external cold air into the cavity inside the piston body through a heat dissipation plate and discharges the hot air in the cavity through heat dissipation holes, achieving a better heat dissipation effect. However, this piston has the following problems:

[0004] This piston only allows gas to enter and exit through a group of through holes. Although the piston can perform a certain amount of ventilation and heat dissipation, due to the reciprocating movement of the piston, the hot air is drawn into the piston interior as soon as it is discharged, resulting in poor heat dissipation effect of the piston.

[0005] Therefore, a piston capable of quickly dissipating heat is proposed to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a piston capable of quickly dissipating heat to solve the above problems, and improve the problem that due to the reciprocating movement of the piston, the hot air is drawn into the piston interior as soon as it is discharged, resulting in poor heat dissipation effect of the piston.

[0007] The utility model realizes the above purpose through the following technical solutions. A piston capable of quickly dissipating heat includes: a piston body, a piston rod is installed through the bottom of the piston body, and an electric push rod is installed at the bottom end of the piston rod; a heat dissipation mechanism, the heat dissipation mechanism is installed through the surface of the piston body and can dissipate heat from the piston body; wherein, the heat dissipation mechanism includes a conduction groove opened on the top of the piston body, a groove is opened inside the conduction groove, and a heat dissipation component is arranged on the surface of the piston body.

[0008] Preferably, the heat dissipation component includes a plurality of air inlet holes opened on the surface of the piston body, a first one-way valve is installed inside the air inlet holes, a plurality of heat dissipation holes are opened on the surface of the piston body and at the bottom of the air inlet holes, and a second one-way valve is installed in the inner cavity of the heat dissipation holes.

[0009] Preferably, two annular heat conduction grooves are provided on the surface of the piston body and at the bottom of the heat dissipation holes, and heat dissipation rings are installed inside both of the two annular heat conduction grooves.

[0010] Preferably, a heat dissipation plate is fixedly installed at one end of the piston rod located inside the piston body. An arc-shaped groove is provided at the top of the heat dissipation plate, and the heat dissipation plate is slidably connected to the inner wall of the piston body.

[0011] Preferably, a sealing groove is provided on the surface of the piston body and at the top of the air inlet hole, and a sealing ring is installed inside the sealing groove.

[0012] Preferably, a limiting plate is installed at the bottom of the piston body, and one end of the piston rod penetrates through the limiting plate and is slidably connected to the limiting plate.

[0013] Preferably, the number of the annular heat conduction grooves is two, and the depth of one annular heat conduction groove is greater than that of the other annular heat conduction groove.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. During the heat dissipation process of the piston body, the heat generated in the combustion chamber is transferred to the inside of the piston body through the groove, enabling the heat to be transferred downward. At the same time, the electric push rod drives the heat dissipation plate to reciprocate inside the piston body. During the reciprocating movement of the heat dissipation plate, the air outside is extracted by using the air inlet hole and the first one-way valve, and the hot air inside is discharged to the outside of the piston body through the heat dissipation hole and the second one-way valve. Moreover, the heat dissipation hole is obliquely designed, which can spray the hot air to the bottom of the surface of the piston body when discharging the heat. The air inlet hole is horizontally designed, which can extract the gas outside that has not been heat-conducted during extraction, so as to discharge the hot air downward and prevent the hot air from being sucked into the inside of the piston body when being discharged, thus avoiding the situation that affects the heat dissipation of the piston body.

[0016] 2. When the heat is transferred from the combustion chamber to the inside of the piston body through the groove, the heat is conducted to the surface of the heat dissipation ring through the annular heat conduction groove provided on the surface of the piston body, and the heat on the surface of the heat dissipation ring is carried by the air flowing outside, so as to assist in improving the heat dissipation efficiency of the piston body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a cross-sectional structural diagram of the piston body of the present utility model;

[0019] Figure 3 is Figure 2 the enlarged view of area A in

[0020] Figure 4Schematic diagram of the annular heat conduction groove structure of the present utility model.

[0021] In the figure: 10, piston body; 11, piston rod; 12, electric push rod; 20, heat dissipation mechanism; 21, conduction groove; 22, groove; 23, heat dissipation component; 231, air inlet hole; 232, first one-way valve; 233, heat dissipation hole; 234, second one-way valve; 235, annular heat conduction groove; 236, heat dissipation ring; 237, heat dissipation plate; 238, arc-shaped groove; 24, sealing groove; 25, sealing ring; 26, limiting plate. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0023] During specific implementation: As Figures 1-4 shown, a piston capable of quickly dissipating heat includes:

[0024] A piston body 10, a piston rod 11 is installed through the bottom of the piston body 10, and an electric push rod 12 is installed at the bottom end of the piston rod 11;

[0025] A heat dissipation mechanism 20, the heat dissipation mechanism 20 is installed through the surface of the piston body 10 and can dissipate heat from the piston body 10;

[0026] Among them, the heat dissipation mechanism 20 includes a conduction groove 21 opened on the top of the piston body 10, a groove 22 is opened inside the conduction groove 21, and a heat dissipation component 23 is arranged on the surface of the piston body 10; the heat generated by the combustion chamber is transferred to the inside of the piston body 10 through the groove 22, so that the heat is transferred downward, so as to facilitate the heat dissipation component 23 to dissipate heat from the piston body 10.

[0027] As Figure 1 , Figure 2 and Figure 3 shown, the heat dissipation component 23 includes a plurality of air inlet holes 231 opened on the surface of the piston body 10, a first one-way valve 232 is installed inside the air inlet holes 231, a plurality of heat dissipation holes 233 are opened on the surface of the piston body 10 and at the bottom of the air inlet holes 231, and a second one-way valve 234 is installed in the inner cavity of the heat dissipation holes 233; two annular heat conduction grooves 235 are opened on the surface of the piston body 10 and at the bottom of the heat dissipation holes 233, and heat dissipation rings 236 are installed inside the two annular heat conduction grooves 235;

[0028] In this embodiment, the electric push rod 12 drives the heat dissipation plate 237 to reciprocate inside the piston body 10. During the reciprocating movement of the heat dissipation plate 237, the intake hole 231 and the first one-way valve 232 are used to extract external air, and the internal hot air is discharged to the outside of the piston body 10 through the heat dissipation hole 233 and the second one-way valve 234. The heat dissipation hole 233 is obliquely designed, which can spray the hot air to the bottom of the surface of the piston body 10 when discharging heat, and the intake hole 231 can extract the gas that has not been heat-conducted from the outside during extraction through the horizontal design;

[0029] In this embodiment, the number of the annular heat conduction grooves 235 is two, and the depth of one annular heat conduction groove 235 is greater than that of the other annular heat conduction groove 235; due to the different thicknesses of the two annular heat conduction grooves 235, it is convenient for the heat dissipation ring 236 to better absorb the heat conducted inside the piston body 10, so as to assist the piston body 10 in heat dissipation.

[0030] As Figure 2 and Figure 4 shown, one end of the piston rod 11 located inside the piston body 10 is fixedly installed with a heat dissipation plate 237. An arc-shaped groove 238 is opened at the top of the heat dissipation plate 237, and the heat dissipation plate 237 is slidably connected to the inner wall of the piston body 10; it is convenient for the heat dissipation plate 237 to move inside the piston body 10, facilitating heat dissipation of the piston body 10. And through the arc-shaped design of the arc-shaped groove 238, it is convenient for the heat dissipation plate 237 to carry more external air, increasing the advantage of the heat dissipation effect of this device; a sealing groove 24 is opened on the surface of the piston body 10 and at the top of the intake hole 231, and a sealing ring 25 is installed inside the sealing groove 24;

[0031] In this embodiment, a limiting plate 26 is installed at the bottom of the piston body 10, and one end of the piston rod 11 passes through the limiting plate 26 and is slidably connected to the limiting plate 26; it is convenient to limit the movement of the heat dissipation plate 237 to prevent the heat dissipation plate 237 from sliding out of the inner cavity of the piston body 10 and affecting the normal operation of the piston body 10.

[0032] During the heat dissipation process of the piston body 10 of the present utility model, the heat generated by the combustion chamber is transferred to the inside of the piston body 10 through the groove 22, causing the heat to transfer downward. At the same time, the electric push rod 12 drives the heat dissipation plate 237 to reciprocate inside the piston body 10. During the reciprocating movement of the heat dissipation plate 237, the intake hole 231 and the first one-way valve 232 are used to extract external air, and the internal hot air is discharged to the outside of the piston body 10 through the heat dissipation hole 233 and the second one-way valve 234. The heat dissipation hole 233 is obliquely designed, which can spray the hot air to the bottom of the surface of the piston body 10 when discharging heat, and the intake hole 231 can extract the gas that has not been heat-conducted from the outside during extraction. That's all.

[0033] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A piston capable of rapid heat dissipation, characterized in that, Comprising: A piston body (10), a piston rod (11) is installed through the bottom of the piston body (10), and an electric push rod (12) is installed at the bottom end of the piston rod (11); A heat dissipation mechanism (20), the heat dissipation mechanism (20) is installed through the surface of the piston body (10) and can dissipate heat from the piston body (10); Wherein, the heat dissipation mechanism (20) includes a conduction groove (21) opened at the top of the piston body (10), a groove (22) is opened inside the conduction groove (21), and a heat dissipation component (23) is arranged on the surface of the piston body (10).

2. The piston capable of rapid heat dissipation according to claim 1, wherein: The heat dissipation component (23) includes a plurality of air inlet holes (231) opened on the surface of the piston body (10), a first one-way valve (232) is installed inside the air inlet holes (231), a plurality of heat dissipation holes (233) are opened on the surface of the piston body (10) and at the bottom of the air inlet holes (231), and a second one-way valve (234) is installed in the inner cavity of the heat dissipation holes (233).

3. The piston capable of rapid heat dissipation according to claim 2, wherein: Two annular heat conduction grooves (235) are opened on the surface of the piston body (10) and at the bottom of the heat dissipation holes (233), and heat dissipation rings (236) are installed inside both of the two annular heat conduction grooves (235).

4. A piston capable of rapid heat dissipation according to claim 3, characterized in that: One end of the piston rod (11) located inside the piston body (10) is fixedly installed with a heat dissipation plate (237), an arc-shaped groove (238) is opened at the top of the heat dissipation plate (237), and the heat dissipation plate (237) is slidably connected with the inner wall of the piston body (10).

5. The piston capable of rapid heat dissipation according to claim 4, wherein: A sealing groove (24) is opened on the surface of the piston body (10) and at the top of the air inlet holes (231), and a sealing ring (25) is installed inside the sealing groove (24).

6. The piston capable of rapid heat dissipation according to claim 5, characterized in that: A limiting plate (26) is installed at the bottom of the piston body (10), and one end of the piston rod (11) penetrates through the limiting plate (26) and is slidably connected with the limiting plate (26).

7. A piston capable of rapid heat dissipation according to claim 3, characterized in that: The number of the annular heat conduction grooves (235) is two, and the depth of one annular heat conduction groove (235) is greater than that of the other annular heat conduction groove (235).

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