An engine piston radiator with high efficiency in heat dissipation
By introducing heat transfer aluminum rods and inner holes into the engine piston head and connecting rod, the problem of low heat dissipation efficiency of traditional engine pistons is solved, and efficient heat dissipation inside the piston head and extending service life is achieved.
Patent Information
- Application Number
- CN202421687498.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The heat dissipation efficiency of traditional engine pistons is low, resulting in heat accumulation inside the piston head, increasing wear and shortening service life.
An engine piston radiator including a piston head and a connecting rod is designed to transfer heat in the piston head to the inner hole through a heat transfer aluminum rod, and cool through exhaust and suction movement to improve heat dissipation efficiency.
It realizes efficient heat dissipation inside the piston head, extends the service life of the piston, and improves the overall performance of the engine.
Smart Images
Figure CN222731651U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engine pistons, in particular to an engine piston radiator with high-efficiency heat dissipation. Background Art
[0002] The piston is a reciprocating component in the engine cylinder. It forms a combustion chamber together with the cylinder head and cylinder wall. The main function of the piston is to withstand the combustion pressure in the cylinder and transmit this force to the crankshaft through the piston pin and connecting rod. During the combustion process, the high temperature heat in the combustion chamber will be transferred to the inside of the piston, causing the entire piston temperature to be too high. The overheated piston will increase wear during movement and reduce its service life. Therefore, when the piston is working, it needs to be cooled.
[0003] Traditional engines are usually cooled by spraying oil to the bottom of the piston head through a specific device, but the oil can only be sprayed on the outer wall of the piston, resulting in a limited heat dissipation position. Heat still accumulates inside the piston head and cannot be effectively discharged, resulting in low heat dissipation efficiency and less than ideal results. Utility Model Content
[0004] The purpose of the utility model is to provide an engine piston radiator with high heat dissipation efficiency, which effectively solves the problems raised in the above-mentioned background technology.
[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions.
[0006] An engine piston radiator with high heat dissipation efficiency comprises a piston head and a connecting rod, wherein the piston head is mounted at one end of the connecting rod, and the other end of the connecting rod is connected to a bearing cover, an inner channel with a circular cross section extending along the length direction of the connecting rod is provided in the connecting rod, an inner bottom wall of the inner channel is provided with an insertion hole extending vertically into the piston head, a vertically extending heat transfer aluminum rod is fixed in the connecting rod, the heat transfer aluminum rod and the connecting rod are coaxially arranged, the bottom of the inner channel is embedded and inserted into the insertion hole, a circular pressing plate is slidably sleeved on the heat transfer aluminum rod, the outer edge wall of the circular pressing plate is slidably fitted with the inner wall of the inner channel, counterweights are fixed on the upper and lower surfaces of the circular pressing plate, a first heat dissipation hole is provided on the outer wall of the connecting rod near the top end of the inner channel, a second heat dissipation hole is provided near the bottom end of the inner channel, and the first heat dissipation hole and the second heat dissipation hole are both connected with the inner channel.
[0007] It can be seen that by inserting the heat transfer aluminum rod into the piston head, the heat accumulated in the piston head can be transferred to the inner channel. In one reciprocating motion cycle of the piston head, two exhaust and intake movements are realized. While the heated air is discharged, the air with lower temperature can be sucked into the inner channel to cool the heat transfer aluminum rod, thereby realizing the heat dissipation inside the piston head. The heat dissipation effect is good and efficient. The heat transfer aluminum rod serves as a heat-conducting component for transferring the heat in the piston head to the inner channel, and also serves as a guide component for the limited sliding of the circular pressing plate, killing two birds with one stone.
[0008] Furthermore, there are six first heat dissipation holes, and the six first heat dissipation holes are arranged in a ring-shaped array around the inner channel.
[0009] Furthermore, there are six second heat dissipation holes, and the six second heat dissipation holes are arranged in a ring-shaped array around the inner channel.
[0010] By arranging six second heat dissipation holes and six second heat dissipation holes in a circular array on the connecting rod, the exhaust and intake points are evenly distributed, thereby improving the heat dissipation and intake cooling effects.
[0011] Furthermore, a plurality of mounting holes connected to the insertion hole are arranged in a ring-shaped array around the insertion hole in the piston head, and a heat-conducting aluminum rod is embedded and fixed in each mounting hole. Each heat-conducting aluminum rod extends into the insertion hole and is fixedly connected to the heat-conducting aluminum rod.
[0012] By arranging a plurality of mounting holes around the insertion hole in the piston head, and fixing a heat-conducting aluminum rod connected to the heat-conducting aluminum rod in the mounting holes, the plurality of heat-conducting aluminum rods are radiated to the periphery and can cover a larger range in the piston head, thereby transferring the heat accumulated in the piston head to the heat-conducting aluminum rod to the greatest extent, achieving efficient heat conduction, and further improving the heat dissipation effect inside the piston head.
[0013] Furthermore, a limit ring is fixedly mounted on the heat transfer aluminum rod below the first heat dissipation hole and on the heat transfer aluminum rod above the second heat dissipation hole, and the diameters of the two limit rings are smaller than the inner diameter of the inner channel.
[0014] Two limit rings can be used to block and limit the sliding of the circular pressing plate, so that the sliding of the circular pressing plate is limited to the area on the heat transfer aluminum rod and between the two limit rings, thereby preventing the circular pressing plate from sliding excessively and blocking the first heat dissipation hole or the second heat dissipation hole to affect the normal circulation of gas.
[0015] Furthermore, a buffer ring distributed around the heat transfer aluminum rod is fixed on one side of the two limit rings close to each other, and the buffer ring is made of rubber material.
[0016] The buffer ring is made of rubber material and has a soft texture. When the circular pressure plate and the counterweight block slide to the extreme position, they will hit the buffer ring. The buffer ring plays a buffering role and also has a noise reduction effect to avoid excessive impact sound.
[0017] Compared with the prior art, the beneficial effects of the present invention are as follows.
[0018] 1. The utility model inserts the heat transfer aluminum rod into the piston head, which can transfer the heat accumulated in the piston head to the inner channel. In one reciprocating motion cycle of the piston head, two exhaust and intake movements are realized. While the heated air is discharged, the air with lower temperature can be sucked into the inner channel to cool the heat transfer aluminum rod, thereby realizing the heat dissipation inside the piston head, and the heat dissipation effect is good and efficient.
[0019] 2. The heat transfer aluminum rod in the utility model serves as a heat conduction component for transferring the heat in the piston head to the inner channel, and also serves as a guide component for the circular pressing piece to slide in a limited position, thus killing two birds with one stone.
[0020] 3. The utility model arranges a plurality of mounting holes around the insertion hole in the piston head, and fixes a heat-conducting aluminum rod connected to the heat-conducting aluminum rod in the mounting holes. The plurality of heat-conducting aluminum rods are radiated and extend toward the periphery, which can cover a larger range in the piston head, thereby transferring the heat accumulated in the piston head to the heat-conducting aluminum rod to the greatest extent, achieving efficient heat conduction and further improving the heat dissipation effect inside the piston head. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;
[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;
[0023] Figure 3 It is a schematic cross-sectional view of a local structure in the utility model;
[0024] Figure 4 It is a schematic cross-sectional view of the structure of the piston head in the utility model.
[0025] In the figure: 1. Piston head; 11. Insertion hole; 12. Mounting hole; 13. Heat-conducting aluminum rod; 2. Connecting rod; 21. Inner channel; 3. Heat-conducting aluminum rod; 4. Round pressing piece; 41. Counterweight; 5. First heat dissipation hole; 6. Second heat dissipation hole; 7. Limiting ring; 8. Buffer ring. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present utility model, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model.
[0028] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.
[0029] See also Figure 1-Figure 4 The utility model provides an engine piston radiator with high heat dissipation, comprising a piston head 1 and a connecting rod 2, wherein the piston head 1 is mounted at one end of the connecting rod 2, and the other end of the connecting rod 2 is connected to the bearing cover. An inner channel 21 with a circular cross-section and extending along the length direction of the connecting rod 2 is provided in the connecting rod 2, and an insertion hole 11 extending vertically into the piston head 1 is provided on the inner bottom wall of the inner channel 21, and a vertically extending heat transfer aluminum rod 3 is fixed in the connecting rod 2, and the heat transfer aluminum rod 3 is coaxially arranged with the connecting rod 2, and the bottom of the inner channel 21 is embedded and inserted into the insertion hole 11, and a circular pressing plate 4 is slidably sleeved on the heat transfer aluminum rod 3, and the outer edge wall of the circular pressing plate 4 is slidably fitted with the inner wall of the inner channel 21, and counterweight blocks 41 are fixed on the upper and lower surfaces of the circular pressing plate 4, and a first heat dissipation hole 5 is provided on the outer wall of the connecting rod 2 near the top of the inner channel 21, and a second heat dissipation hole 6 is provided near the bottom end of the inner channel 21, and the first heat dissipation hole 5 and the second heat dissipation hole 6 are both connected with the inner channel 21.
[0030] When the piston head 1 reciprocates, the heat accumulated inside it is transferred to the heat transfer aluminum rod 3, and then transferred to the air in the inner channel 21 through the heat transfer aluminum rod 3, thereby transferring the heat accumulated in the piston head 1 to the inner channel 21. When the connecting rod 2 swings upward with the movement of the piston head 1, the circular pressing plate 4 and the counterweight block 41 slide upward along the heat transfer aluminum rod 3 under the action of inertia. At this time, the circular pressing plate 4 can press the heated air in the inner channel 21 upward and discharge it through the first heat dissipation hole 5 to achieve heat dissipation. At the same time, in order to maintain The air pressure in the inner channel 21 is kept balanced, and the air with lower external temperature is sucked into the inner channel 21 through the second heat dissipation hole 6, which can continue to cool the heat transfer aluminum rod 3. When the connecting rod 2 swings down with the piston head 1, the circular pressing plate 4 and the counterweight block 41 slide downward along the heat transfer aluminum rod 3 under the action of inertia and gravity. Similarly, the circular pressing plate 4 presses the air with higher temperature in the inner channel 21 and discharges it through the second heat dissipation hole 6, while the air with lower external temperature is sucked into the inner channel 21 through the first heat dissipation hole 5.
[0031] The heat transfer aluminum rod 3 is inserted into the piston head 1, and the heat accumulated in the piston head 1 can be transferred to the inner channel 21. In one reciprocating motion cycle of the piston head 1, two exhaust and intake movements are realized. While the heated air is discharged, the air with lower temperature can be sucked into the inner channel 21 to cool the heat transfer aluminum rod 3, thereby realizing the heat dissipation inside the piston head 1, and the heat dissipation effect is good and efficient.
[0032] In addition, the heat transfer aluminum rod 3 serves as a heat conduction component for transferring the heat in the piston head 1 to the inner channel 21, and also serves as a guide component for the circular pressing plate 4 to slide in a limited position, thus achieving two goals at one stroke.
[0033] Specifically, there are six first heat dissipation holes 5 , and the six first heat dissipation holes 5 are arranged in a ring-shaped array around the inner channel 21 .
[0034] Specifically, there are six second heat dissipation holes 6 , and the six second heat dissipation holes 6 are arranged in a ring-shaped array around the inner channel 21 .
[0035] By arranging the six second heat dissipation holes 6 and the six second heat dissipation holes 6 in a circular array on the connecting rod 2, it is ensured that the exhaust and intake points are evenly distributed, thereby improving the heat dissipation and intake cooling effects.
[0036] Specifically, a plurality of mounting holes 12 are arranged in a ring-shaped array around the insertion hole 11 in the piston head 1, and are communicated with the insertion hole 11. A heat-conducting aluminum rod 13 is embedded and fixed in each mounting hole 12, and the heat-conducting aluminum rod 13 is tightly fitted with the inner wall of the mounting hole 12. Each heat-conducting aluminum rod 13 extends into the insertion hole 11 and is fixedly connected to the heat-conducting aluminum rod 3. By arranging a plurality of mounting holes 12 around the insertion hole 11 in the piston head 1, and fixing the heat-conducting aluminum rod 13 connected to the heat-conducting aluminum rod 3 in the mounting holes 12, the plurality of heat-conducting aluminum rods 13 are radially extended toward the periphery, which can cover a larger range in the piston head 1, and thus can transfer the heat accumulated in the piston head 1 to the heat-conducting aluminum rod 3 to the greatest extent, thereby achieving efficient heat conduction and further improving the heat dissipation effect inside the piston head 1.
[0037] Specifically, a limit ring 7 is fixedly mounted on the heat transfer aluminum rod 3 and located below the first heat dissipation hole 5, and on the heat transfer aluminum rod 3 and located above the second heat dissipation hole 6. The diameters of the two limit rings 7 are smaller than the inner diameter of the inner channel 21. The two limit rings 7 can block and limit the sliding of the circular pressing plate 4, so that the sliding of the circular pressing plate 4 is limited to the area on the heat transfer aluminum rod 3 and between the two limit rings 7, thereby preventing the circular pressing plate 4 from sliding excessively and blocking the first heat dissipation hole 5 or the second heat dissipation hole 6 and affecting the normal circulation of gas.
[0038] Specifically, a buffer ring 8 distributed around the heat transfer aluminum rod 3 is fixed on one side of the two limit rings 7 that are close to each other. The buffer ring 8 is made of rubber material. The buffer ring 8 made of rubber material has a soft texture. When the circular pressing plate 4 and the counterweight block 41 slide to the extreme position, they will hit the buffer ring 8. The buffer ring 8 plays a buffering role and also has a noise reduction effect to avoid excessive impact sound.
[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. An engine piston radiator with high heat dissipation efficiency, characterized by: It comprises a piston head (1) and a connecting rod (2); The piston head (1) is mounted on one end of the connecting rod (2), and the other end of the connecting rod (2) is connected to the bearing cover; The connecting rod (2) is provided with an inner hole (21) with a circular cross section and extending along the length direction of the connecting rod (2); the inner bottom wall of the inner hole (21) is provided with an insertion hole (11) extending vertically into the piston head (1); A vertically extending heat transfer aluminum rod (3) is fixed inside the connecting rod (2), the heat transfer aluminum rod (3) and the connecting rod (2) are coaxially arranged, and the bottom of the inner channel (21) is embedded and inserted into the insertion hole (11); A circular pressing sheet (4) is slidably mounted on the heat transfer aluminum rod (3), the outer edge wall of the circular pressing sheet (4) is slidably fitted with the inner wall of the inner hole (21), and counterweight blocks (41) are fixed on the upper and lower surfaces of the circular pressing sheet (4); A first heat dissipation hole (5) is provided on the outer wall of the connecting rod (2) near the top end of the inner channel (21), and a second heat dissipation hole (6) is provided near the bottom end of the inner channel (21); the first heat dissipation hole (5) and the second heat dissipation hole (6) are both connected to the inner channel (21).
2. The engine piston radiator with high heat dissipation efficiency according to claim 1, characterized in that: There are six first heat dissipation holes (5), and the six first heat dissipation holes (5) are arranged in a ring-shaped array around the inner channel (21).
3. The engine piston radiator with high heat dissipation efficiency according to claim 1, characterized in that: There are six second heat dissipation holes (6), and the six second heat dissipation holes (6) are arranged in a ring-shaped array around the inner channel (21).
4. The engine piston radiator with high heat dissipation efficiency according to claim 1, characterized in that: A plurality of mounting holes (12) are arranged in a ring-shaped array around the mounting hole (11) in the piston head (1), and are all in communication with the mounting hole (11). A heat-conducting aluminum rod (13) is embedded and fixed in each mounting hole (12); Each of the heat-conducting aluminum rods (13) extends into the insertion hole (11) and is fixedly connected to the heat-conducting aluminum rod (3).
5. The engine piston radiator with high heat dissipation efficiency according to claim 1, characterized in that: A limit ring (7) is fixedly mounted on the heat transfer aluminum rod (3) at a position below the first heat dissipation hole (5) and on the heat transfer aluminum rod (3) at a position above the second heat dissipation hole (6); The diameters of the two limiting rings (7) are both smaller than the inner diameter of the inner channel (21).
6. The engine piston radiator with high heat dissipation efficiency according to claim 5, characterized in that: A buffer ring (8) distributed around the heat transfer aluminum rod (3) is fixed to each of the two limiting rings (7) on the side close to each other, and the buffer ring (8) is made of rubber material.