A high-efficiency heat-dissipation automobile engine heat shield

Abstract

The utility model relates to the technical field of heat shield, provide a kind of high-efficiency radiating automobile engine heat shield, including heat shield, the heat shield upper end is equipped with oil filling hole, the heat shield is equipped with air conditioner pipe avoidance hole in the side close to filling hole, the heat shield lower end is equipped with heat transport component, the heat transport component lower end is equipped with heat conduction component;The utility model has beneficial effect: when high-speed driving of vehicle, vehicle head grating airflow is inducted into air intake chamber under the action of air pressure, is guided into air intake pipe by first bellows and flows into serpentine pipe, and forms hot air current after being fully exchanged with pipe wall with heat;Hot air current enters second bellows by air outlet pipe, and second bellows extends to automobile chassis area, and air under chassis improves flow rate due to vehicle body traction when vehicle is running, forms negative pressure environment, under the pressure difference of chassis negative pressure, hot air current is quickly discharged, realizes the efficient export of heat, avoids core area heat accumulation.

Description

Technical Field

[0001] This utility model relates to the field of heat insulation cover technology, specifically a high-efficiency heat insulation cover for automotive engines. Background Technology

[0002] Most existing automotive engine heat shields use aluminum alloy stamping for the outer metal layer, with a composite glass fiber or aerogel insulation layer on the inside. Basic protection is achieved by the metal layer reflecting heat radiation and the insulation layer blocking heat conduction. Some heat shields have strip-shaped air inlets at the front and exhaust ducts at the rear, using the airflow from the front of the car to create natural convection. The airflow flows along the gap between the shield and the engine to carry away some heat and maintain the operating temperature of surrounding components such as wiring harnesses and plastic pipes.

[0003] However, in actual use, when the vehicle is driven for a long time and the engine is running under high load continuously, the heat of the cylinder block will be released in a concentrated manner. The air intake of the existing heat shield has low adhesion to the surface of the high-temperature component, the airflow flows quickly through the gap, the contact area with the cylinder block is small, and the heat exchange is not sufficient. Utility Model Content

[0004] The purpose of this invention is to provide a heat shield for automotive engines with high efficiency in heat dissipation. Through heat-conducting plates and fishbone-shaped heat-conducting sheets, heat can be efficiently transferred to the serpentine tube. The serpentine tube extends the contact path with heat, ensuring that heat is fully conducted into the tube, thereby capturing heat in the core area.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency heat dissipation automotive engine heat shield, comprising a heat shield plate, an oil filling hole at the upper end of the heat shield plate, an air conditioning pipe clearance hole at the side of the heat shield plate near the filling hole, a heat transfer component at the lower end of the heat shield plate, and a heat conduction component at the lower end of the heat transfer component.

[0006] The heat transfer assembly includes an air inlet pipe, a serpentine pipe, and an air outlet pipe disposed inside the heat insulation plate. The air inlet pipe is connected to the serpentine pipe, and the serpentine pipe is connected to the air outlet pipe. The other end of the air inlet pipe is threadedly connected to a first corrugated pipe. The other end of the first corrugated pipe is connected to an air inlet chamber. The other end of the air outlet pipe is threadedly connected to a second corrugated pipe. The other end of the second corrugated pipe is fitted with a locking clamp.

[0007] The heat-conducting component includes a heat-conducting plate fixedly installed at the lower end of the heat insulation plate, and four sets of heat-conducting sheets are fixedly connected to the upper end of the heat-conducting plate.

[0008] Preferably, a limiting seat is fitted at the middle of the intake pipe, the serpentine pipe, and the exhaust pipe, and the limiting seat is fixedly connected to the heat insulation plate. The limiting seat can fix the position of the pipeline, prevent the pipeline from shifting due to engine vibration, ensure that the position of the serpentine pipe remains unchanged, stabilize the transmission path, and reduce pipeline wear.

[0009] Preferably, a protective sleeve is fixedly connected to the heat-conducting plate corresponding to the oil filler hole and the air conditioning pipe clearance hole. The protective sleeve can prevent heat from escaping from the holes and protect the rubber parts around the oil filler hole and air conditioning pipe from high-temperature aging.

[0010] Preferably, all four sets of heat-conducting plates are arranged in a fishbone pattern, with each set including a main heat-conducting plate and several branch heat-conducting plates. The main heat-conducting plate can quickly conduct heat from the heat-conducting plate, while the branch heat-conducting plates can increase the heat exchange contact area and improve heat transfer efficiency.

[0011] Preferably, the air intake chamber has a trapezoidal cross-section, with protruding strips extending from the top and bottom, and mounting holes provided on the strips. The trapezoidal structure can compress the airflow and increase its velocity, thereby increasing the heat exchange with the serpentine tube. The mounting holes facilitate adjusting the position of the air intake chamber according to the vehicle model, ensuring it faces the oncoming airflow and guaranteeing the air intake volume.

[0012] Preferably, the lower end of the locking clamp extends outward to form a connecting plate, and the connecting plate has corresponding waist holes. The waist holes allow for fine adjustment of the locking clamp position during installation to ensure that the outlet of the second corrugated pipe is aligned with the negative pressure zone of the chassis, thus ensuring stable discharge of hot air.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Heat can be efficiently transferred to the serpentine tube through the heat-conducting plate and the fishbone-shaped heat-conducting fins. The serpentine tube extends the contact path with the heat, ensuring that the heat is fully conducted into the tube, thus capturing the heat in the core area.

[0015] 2. When the vehicle is traveling at high speed, the airflow from the front grille converges into the intake chamber under air pressure, enters the intake pipe through the first corrugated pipe and flows into the serpentine pipe. After fully exchanging heat with the pipe wall, a hot airflow is formed. The hot airflow enters the second corrugated pipe through the exhaust pipe, and the second corrugated pipe extends to the chassis area. When the vehicle is moving, the air under the chassis has an increased flow speed due to the vehicle body, forming a negative pressure environment. Under the pressure difference of the negative pressure under the chassis, the hot airflow is quickly discharged, achieving efficient heat removal and avoiding heat accumulation in the core area. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of another preferred embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the heat-conducting plate in this utility model;

[0019] Figure 4 This is a structural disassembly diagram of the present invention;

[0020] Figure 5 This is a partial structural schematic diagram of the present invention.

[0021] In the diagram: 1. Heat insulation plate; 2. Oil filler hole; 3. Air conditioning pipe clearance hole; 4. Air intake pipe; 5. Snake pipe; 6. Air outlet pipe; 7. First corrugated pipe; 8. Air intake chamber; 9. Second corrugated pipe; 10. Locking clamp; 11. Heat conduction plate; 12. Heat conduction sheet; 13. Limiting seat; 14. Protective sleeve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 The present invention provides the following technical solution:

[0024] A high-efficiency heat dissipation automotive engine heat shield includes a heat shield plate 1. An oil filling hole 2 is provided at the upper end of the heat shield plate 1. An air conditioning pipe clearance hole 3 is provided on the side of the heat shield plate 1 near the filling hole. A heat transfer assembly is provided at the lower end of the heat transfer assembly, and a heat conduction assembly is provided at the lower end of the heat transfer assembly. The heat transfer assembly includes an intake pipe 4, a serpentine pipe 5, and an exhaust pipe 6 disposed inside the heat shield plate 1. The intake pipe 4 is connected to the serpentine pipe 5, and the serpentine pipe 5 is connected to the exhaust pipe 6. A first corrugated pipe 7 is threaded to the other end of the intake pipe 4. An intake chamber 8 is connected to the other end of the first corrugated pipe 7. A second corrugated pipe 9 is threaded to the other end of the exhaust pipe 6. A locking clamp 10 is fitted onto the other end of the second corrugated pipe 9. The heat conduction assembly includes a heat conduction plate 11 fixedly installed at the lower end of the heat shield plate 1. Four sets of heat conduction plates 12 are fixedly connected to the upper end of the heat conduction plate 11.

[0025] Limiting seats 13 are fitted in the middle of the intake pipe 4, the serpentine pipe 5 and the exhaust pipe 6. The limiting seats 13 are fixedly connected to the heat insulation plate 1. The heat conduction plate 11 is fixedly connected to the oil filling hole 2 and the air conditioning pipe clearance hole 3 with protective sleeves 14. The four sets of heat conduction plates 12 are arranged in a fishbone shape. Each set of heat conduction plates 12 includes a main heat conduction plate and several branch heat conduction plates. The cross-section of the intake chamber 8 is trapezoidal. The top and bottom of the intake chamber 8 have protrusions, and the protrusions have mounting waist holes. The lower end of the locking clamp 10 extends outward to form a connecting plate, and the connecting plate has corresponding waist holes.

[0026] The working process of this utility model:

[0027] During installation, align the heat shield 1 with the pre-set mounting position on the top of the engine, ensuring the oil filler hole 2 is directly opposite the engine oil filler neck. Insert the air conditioning pipe clearance hole 3 onto the outside of the air conditioning pipe. Secure the heat shield 1 to the engine block using bolts through the mounting holes on its edge, ensuring a tight and secure fit between the heat shield 1 and the engine surface. Align the convex strip of the intake chamber 8 with the mounting bracket inside the front grille, insert bolts through the mounting holes on the convex strip, and tighten them securely. Then, thread the first corrugated pipe 7 to the end of the intake pipe 4, tightening it until there is no air leakage. The corrugated pipe should be able to expand and contract flexibly with engine vibration, avoiding rigid pulling. Thread one end of the second corrugated pipe 9 to the exhaust pipe 6, and pull the other end to the pre-reserved position on the chassis exhaust pipe. Pass bolts through the connecting plate waist hole of the locking clamp 10 and the pre-set hole on the car floor, adjust the position, and tighten them, ensuring the outlet of the second corrugated pipe 9 is aligned with the airflow.

[0028] During operation, the heat generated by components such as the cylinder block and exhaust pipe is transferred to the heat-conducting plate 11 through thermal radiation and heat conduction. The fishbone-shaped heat-conducting fins 12 efficiently concentrate the heat around the serpentine tube 5. The protective sleeve 14 prevents heat leakage from the oil filler hole 2 and the air conditioning pipe clearance hole 3, avoiding heat aging of surrounding components. Airflow from the front of the vehicle enters the air intake chamber 8 through the grille. The trapezoidal structure of the air intake chamber 8 compresses the airflow and increases its velocity. The accelerated air is then guided into the intake pipe 4 through the first corrugated pipe 7. The airflow in the intake pipe 4 then enters the serpentine tube 5. Because the serpentine tube 5 bends and extends the flow path, the air comes into full contact with the pipe wall, thereby absorbing the heat transferred by the heat-conducting plate 11 and the heat-conducting fins 12. The airflow carrying heat enters the second corrugated tube 9 through the exhaust pipe 6, and is finally discharged outside the vehicle through the negative pressure generated by the vehicle's movement.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency heat dissipation automotive engine heat shield, comprising a heat shield plate (1), wherein an oil filling hole (2) is provided at the upper end of the heat shield plate (1), and an air conditioning pipe clearance hole (3) is provided on the side of the heat shield plate (1) near the filling hole, characterized in that: A heat transfer component is provided at the lower end of the heat insulation board (1), and a heat conduction component is provided at the lower end of the heat transfer component; The heat transfer assembly includes an air inlet pipe (4), a serpentine pipe (5), and an air outlet pipe (6) disposed inside the heat insulation plate (1). The air inlet pipe (4) is connected to the serpentine pipe (5), and the serpentine pipe (5) is connected to the air outlet pipe (6). The other end of the air inlet pipe (4) is threadedly connected to a first corrugated pipe (7), and the other end of the first corrugated pipe (7) is connected to an air inlet chamber (8). The other end of the air outlet pipe (6) is threadedly connected to a second corrugated pipe (9), and the other end of the second corrugated pipe (9) is fitted with a locking clamp (10). The heat-conducting component includes a heat-conducting plate (11) fixedly installed at the lower end of the heat insulation plate (1), and four sets of heat-conducting sheets (12) are fixedly connected to the upper end of the heat-conducting plate (11).

2. The high-efficiency heat dissipation automotive engine heat shield according to claim 1, characterized in that: A limiting seat (13) is fitted in the middle of the air inlet pipe (4), the serpentine pipe (5) and the air outlet pipe (6), and the limiting seat (13) is fixedly connected to the heat insulation plate (1).

3. The high-efficiency heat dissipation automotive engine heat shield according to claim 1, characterized in that: The heat-conducting plate (11) is fixedly connected to the oil filling hole (2) and the air conditioning pipe clearance hole (3) with a protective sleeve (14).

4. The high-efficiency heat dissipation automotive engine heat shield according to claim 1, characterized in that: The four sets of heat-conducting plates (12) are arranged in a fishbone pattern. Each set of heat-conducting plates (12) includes a main heat-conducting plate and several branch heat-conducting plates.

5. The high-efficiency heat dissipation automotive engine heat shield according to claim 1, characterized in that: The cross-section of the air intake chamber (8) is trapezoidal, and the top and bottom ends of the air intake chamber (8) have protruding strips, and the protruding strips have mounting holes.

6. The high-efficiency heat dissipation automotive engine heat shield according to claim 1, characterized in that: The lower end of the locking hoop (10) extends outward to form a connecting plate, and a corresponding waist hole is provided on the connecting plate.

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