Engine shell with annular flow guide cooling structure

Abstract

The utility model discloses an engine shell with an annular flow guide cooling structure, which comprises an outer shell, the lower surface of the outer shell is provided with an abdicating hole, the outer shell is internally provided with a flow guide cooling mechanism, and the flow guide cooling mechanism realizes local powerful cooling of the outer shell through self-adaptive circulation of cooling liquid. According to the engine shell with the annular flow guide cooling structure, the flow guide cooling mechanism is arranged in the outer surface of the outer shell, and the piston plate at the heating position is pushed to slide under the action of heated gas pressure; the cooling liquid can efficiently cool the heating position in the mode that the cooling liquid flows to the heating position in a self-adaptive mode, the cooling liquid enters the liquid storage barrel after flowing back, and heat is dissipated through the heat dissipation fins; when external air is guided to the heat dissipation fins, efficient heat dissipation can be achieved through the large contact area between the heat dissipation fins and the air.

Description

Technical Field

[0001] The utility model relates to the technical field of engine casings, in particular to an engine casing provided with an annular flow-guiding cooling structure. Background Art

[0002] Common cooling methods for automobile engines are air cooling and water cooling. There are many cooling fins on the cylinder block of the engine, which can increase the contact area with the air and provide a structural basis for air cooling. The cooling system of the engine is a forced circulation water cooling system, that is, a water pump is used to increase the pressure of the coolant and force the coolant to circulate in the engine. The cooling system is mainly composed of a water pump, a radiator, a cooling fan, a compensation water tank, a thermostat, a water jacket in the engine body and cylinder head, and auxiliary devices. The end cover is an important component in the engine equipment. The end cover is often used to seal the parts in the equipment to prevent the leakage of substances in the equipment. At the same time, it can also protect the inside of the equipment from pollution. The end cover can also be used to fix certain parts. Such as bearings, to prevent them from loosening or falling off, the end cover can protect the engine from damage by the external environment, such as preventing water, sand, dust, etc. from entering the inside of the engine, and it can also play a role in heat insulation and sound insulation. However, since the cylinder head and the engine are detachably installed, the engine's cooling structure cannot cool the end cover outer shell, and the heating position of the end cover is greatly affected by the engine's working state. In order to ensure a good cooling effect, it is necessary to design a cooling mechanism for the heating position, but this method cannot adjust the position of the cooling mechanism when the engine's working state changes, resulting in the cooling effect of the engine end cover shell cannot achieve the ideal effect. Utility Model Content

[0003] The utility model aims to provide an engine housing provided with an annular flow-guiding cooling structure, so as to solve the problem in the above-mentioned background technology that adaptive cooling cannot be performed for changing heat points.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an engine casing provided with an annular flow-guiding cooling structure, comprising an outer casing, a lower surface of which is provided with a clearance hole, and an flow-guiding cooling mechanism is arranged inside the outer casing, and the flow-guiding cooling mechanism achieves local strong cooling of the outer casing by adaptively circulating the coolant.

[0005] Preferably, the guide cooling mechanism includes: a guide ring, which is embedded and installed inside the outer surface of the outer shell, and a cooling pipe is fixedly arranged on the inner surface of the guide ring, a sliding cylinder is fixedly arranged on the outer surface of the guide ring, and a sliding piston rod is installed inside the sliding cylinder, and a connecting hole is opened on the outer surface of the piston rod, and a heat absorption chamber is fixedly arranged on the upper end of the sliding cylinder.

[0006] By adopting the above technical solution, the air inside the heat absorption chamber can push the piston rod to slide after being heated and expanded.

[0007] Preferably, the diversion cooling mechanism also includes: an inlet pipe, which is opened inside one end of the outer shell, and the upper ends of the two inlet pipes are respectively connected to a first connecting pipe and a second connecting pipe, a liquid storage barrel is fixedly installed on the outer surface of the outer shell between the first connecting pipe and the second connecting pipe, an electric push rod is fixedly installed on the upper end of the liquid storage barrel, and one end of the electric push rod passes through the inner top surface of the liquid storage barrel, and one end of the electric push rod located inside the liquid storage barrel is fixedly connected to a piston plate, and a cooling fin is fixedly provided on the outer surface of the liquid storage barrel.

[0008] By adopting the above technical solution, the liquid storage barrel can absorb and discharge the coolant, so as to achieve the purpose of quickly dissipating the heat in the coolant.

[0009] Preferably, the cooling pipe is of U-shaped design, and both ends of the cooling pipe penetrate the inner surface of the guide ring.

[0010] By adopting the above technical solution, the coolant in the guide ring can enter the cooling pipe to absorb heat when the flow is blocked.

[0011] Preferably, the sliding cylinder is located on the outer surface of the guide ring between the two ends of the cooling tube, and the sliding cylinder and the piston rod are connected by sliding friction, and a spring is connected between the sliding cylinder and the piston rod, and an opening is provided at the lower end of the sliding cylinder, and the opening at the lower end of the sliding cylinder is arranged opposite to the give way hole, and the connecting hole is arranged opposite to the guide ring.

[0012] By adopting the above technical solution, the communicating hole can ensure the normal pressure state inside the lower end of the sliding cylinder.

[0013] Preferably, the introduction pipe is L-shaped, and the upper end of the introduction pipe passes through the upper surface of the outer shell, and the lower end of the introduction pipe passes through the inner surface of the guide ring and is connected to the guide ring.

[0014] By adopting the above technical solution, the introduction pipe can be connected with the guide ring to cooperate with the first connecting pipe and the second connecting pipe to circulate the coolant.

[0015] Preferably, the upper end of the first connecting tube passes through the lower side surface of the liquid storage barrel, the upper end of the second connecting tube passes through the upper end of the liquid storage barrel, the piston plate and the liquid storage barrel are connected by sliding friction, the cooling fins are evenly arranged on the outer surface of the liquid storage barrel, and the cooling fins are inclined.

[0016] By adopting the above technical solution, the heat dissipation fins can quickly dissipate the heat of the coolant through a larger contact area with the external air.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The engine housing provided with an annular diversion cooling structure:

[0018] 1. By arranging a diversion cooling mechanism inside the outer surface of the outer housing, and using the piston plate at the heat - generating position being pushed and slid under the action of the heated gas pressure, the coolant can efficiently cool the heat - generating position by flowing adaptively to the heat - generating position.

[0019] 2. Further, by the way that the coolant enters the liquid storage barrel after reflux and dissipates heat through the heat - dissipating fins, when the external air is guided to the heat - dissipating fins, efficient heat dissipation can be achieved through the large contact area between the heat - dissipating fins and the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic three - dimensional structure diagram of the whole of the present utility model;

[0021] Figure 2 is a schematic three - dimensional structure diagram of the connection between the outer housing and the liquid storage barrel of the present utility model;

[0022] Figure 3 is a schematic three - dimensional structure diagram of the connection cross - section of the liquid storage barrel, the electric push rod and the piston plate of the present utility model;

[0023] Figure 4 is a schematic three - dimensional structure diagram of the whole cross - section of the present utility model;

[0024] Figure 5 is a schematic three - dimensional structure diagram of the connection cross - section between the outer housing and the diversion ring of the present utility model;

[0025] Figure 6 is a schematic three - dimensional structure diagram of the connection cross - section between the diversion ring and the piston rod of the present utility model.

[0026] In the figure: 1. Outer housing; 2. Relief hole; 3. Diversion ring; 4. Cooling pipe; 5. Sliding cylinder; 6. Piston rod; 7. Communication hole; 8. Heat absorption cavity; 9. Introduction pipe; 10. First communication pipe; 11. Second communication pipe; 12. Liquid storage barrel; 13. Electric push rod; 14. Piston plate; 15. Heat - dissipating fins. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to 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 of 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 efforts belong to the scope of protection of the present utility model.

[0028] Please refer toFigures 1-6 The utility model provides a technical solution: an engine casing with an annular flow-guiding cooling structure.

[0029] Embodiment 1: This embodiment discloses: an outer shell 1, a clearance hole 2 is opened on the lower surface of the outer shell 1, and a guide cooling mechanism is arranged inside the outer shell 1. The guide cooling mechanism realizes local strong cooling of the outer shell 1 by adaptive circulation of the coolant;

[0030] The flow guide cooling mechanism comprises: a flow guide ring 3, which is embedded and installed inside the outer surface of the outer shell 1, and a cooling pipe 4 is fixedly arranged on the inner surface of the flow guide ring 3, a sliding cylinder 5 is fixedly arranged on the outer surface of the flow guide ring 3, and a sliding piston rod 6 is installed inside the sliding cylinder 5, and a connecting hole 7 is opened on the outer surface of the piston rod 6, and a heat absorption cavity 8 is fixedly arranged on the upper end of the sliding cylinder 5;

[0031] The cooling pipe 4 is of U-shaped design, and both ends of the cooling pipe 4 penetrate the inner surface of the guide ring 3;

[0032] The sliding cylinder 5 is located on the outer surface of the guide ring 3 between the two ends of the cooling tube 4, and the sliding cylinder 5 is connected to the piston rod 6 by sliding friction, and a spring is connected between the sliding cylinder 5 and the piston rod 6, and an opening is provided at the lower end of the sliding cylinder 5, and the opening at the lower end of the sliding cylinder 5 is arranged opposite to the clearance hole 2, and the connecting hole 7 is arranged opposite to the guide ring 3;

[0033] During operation, as the coolant flows in the guide ring 3 inside the outer shell 1, the air inside the heat absorption chamber 8 at the heating part expands due to the heat, gradually driving the piston rod 6 to slide downward and compressing the spring between the piston rod 6 and the sliding cylinder 5. At this time, as the connecting hole 7 and the guide ring 3 are misaligned, the piston rod 6 closes the guide ring 3. At this time, the coolant can only flow in through one end of the cooling tube 4 and flow out from the other end of the cooling tube 4 to achieve cooling of the heating part of the outer shell 1. When a certain part of the outer shell 1 is not heated, the piston rod 6 slides up under the support of the spring so that the connecting hole 7 is opposite to the guide ring 3. At this time, the coolant flows directly through the connecting hole 7 in the guide ring 3, so that the guide ring 3 can quickly transport the coolant to the heating position without a long circuitous flow. During the process, the giving hole 2 ensures that the sliding cylinder 5 at the lower end of the piston rod 6 is at normal pressure when the piston rod 6 slides, so that the piston rod 6 can slide stably.

[0034] Embodiment 2: On the basis of Embodiment 1, this embodiment discloses that the diversion cooling mechanism further includes: an inlet pipe 9, which is provided inside one end of the outer casing 1. The upper ends of the two inlet pipes 9 are respectively connected to a first communication pipe 10 and a second communication pipe 11. An outer surface of the outer casing 1 between the first communication pipe 10 and the second communication pipe 11 is fixedly provided with a liquid storage barrel 12. The upper end of the liquid storage barrel 12 is fixedly provided with an electric push rod 13. One end of the electric push rod 13 penetrates through the inner top surface of the liquid storage barrel 12, and the end of the electric push rod 13 located inside the liquid storage barrel 12 is fixedly connected to a piston plate 14. The outer surface of the liquid storage barrel 12 is fixedly provided with heat dissipation fins 15;

[0035] The inlet pipe 9 is designed in an L shape, and the upper end of the inlet pipe 9 penetrates through the upper surface of the outer casing 1, and the lower end of the inlet pipe 9 penetrates through the inner surface of the diversion ring 3 and is communicated with the diversion ring 3;

[0036] The upper end of the first communication pipe 10 penetrates through the lower side surface of the liquid storage barrel 12, the upper end of the second communication pipe 11 penetrates through the upper end of the liquid storage barrel 12. The piston plate 14 is in sliding friction connection with the liquid storage barrel 12. The heat dissipation fins 15 are uniformly arranged on the outer surface of the liquid storage barrel 12, and the heat dissipation fins 15 are designed to be inclined;

[0037] During the working process, the electric push rod 13 installed at the upper end of the liquid storage barrel 12 drives the piston plate 14 to perform continuous reciprocating sliding up and down, cooperating with the two inlet pipes 9 and the first communication pipe 10 and the second communication pipe 11 to achieve the purpose of sucking the coolant from the diversion ring 3 into the liquid storage barrel 12 and then pressing it back into the diversion ring 3 again, so that the coolant can flow back to the liquid storage barrel 12 after absorbing heat in the diversion ring 3 and the heat dissipation speed can be accelerated through the heat dissipation fins 15 on the side surface of the liquid storage barrel 12 to achieve a better cooling effect.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engine casing provided with an annular flow-guiding cooling structure, comprising an outer casing (1), wherein a clearance hole (2) is provided on the lower surface of the outer casing (1), and characterized in that: A flow-guiding cooling mechanism is arranged inside the outer shell (1), and the flow-guiding cooling mechanism realizes local strong cooling of the outer shell (1) through adaptive circulation of the cooling liquid.

2. The engine housing with an annular flow guiding and cooling structure according to claim 1, characterized in that: The flow guide cooling mechanism comprises: a flow guide ring (3), the flow guide ring (3) being embedded and installed inside the outer surface of the outer shell (1), and a cooling pipe (4) being fixedly arranged on the inner surface of the flow guide ring (3), a sliding cylinder (5) being fixedly arranged on the outer surface of the flow guide ring (3), a sliding piston rod (6) being installed inside the sliding cylinder (5), and a connecting hole (7) being opened on the outer surface of the piston rod (6), and a heat absorption chamber (8) being fixedly arranged on the upper end of the sliding cylinder (5).

3. The engine housing with an annular flow guiding and cooling structure according to claim 1, characterized in that: The diversion cooling mechanism further comprises: an inlet pipe (9), the inlet pipe (9) being opened inside one end of the outer shell (1), and the upper ends of the two inlet pipes (9) are respectively connected to a first connecting pipe (10) and a second connecting pipe (11), a liquid storage barrel (12) is fixedly installed on the outer surface of the outer shell (1) between the first connecting pipe (10) and the second connecting pipe (11), an electric push rod (13) is fixedly installed on the upper end of the liquid storage barrel (12), and one end of the electric push rod (13) passes through the inner top surface of the liquid storage barrel (12), and one end of the electric push rod (13) located inside the liquid storage barrel (12) is fixedly connected to a piston plate (14), and a heat dissipation fin (15) is fixedly provided on the outer surface of the liquid storage barrel (12).

4. The engine housing with an annular flow guiding and cooling structure according to claim 2, characterized in that: The cooling pipe (4) is of U-shaped design, and both ends of the cooling pipe (4) penetrate the inner surface of the guide ring (3).

5. A motor housing provided with an annular diversion cooling structure according to claim 2, characterized in that: The sliding cylinder (5) is located on the outer surface of the guide ring (3) between the two ends of the cooling tube (4), and the sliding cylinder (5) and the piston rod (6) are connected by sliding friction, and a spring is connected between the sliding cylinder (5) and the piston rod (6). An opening is provided at the lower end of the sliding cylinder (5), and the opening at the lower end of the sliding cylinder (5) is arranged opposite to the clearance hole (2), and the connecting hole (7) is arranged opposite to the guide ring (3).

6. The engine housing with an annular diversion cooling structure according to claim 3, wherein: The introduction pipe (9) is of L-shaped design, and the upper end of the introduction pipe (9) penetrates the upper surface of the outer shell (1), and the lower end of the introduction pipe (9) penetrates the inner surface of the guide ring (3) and is in communication with the guide ring (3).

7. The engine housing with an annular flow guiding and cooling structure according to claim 3, wherein: The upper end of the first connecting tube (10) passes through the lower side surface of the liquid storage barrel (12), the upper end of the second connecting tube (11) passes through the upper end of the liquid storage barrel (12), the piston plate (14) and the liquid storage barrel (12) are connected by sliding friction, and the heat dissipation fins (15) are evenly arranged on the outer surface of the liquid storage barrel (12), and the heat dissipation fins (15) are of inclined design.

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