Anti-icing electric heating crankcase ventilation pipe

By combining heating and protection components, the problem of poor stability of the ventilation duct is solved, achieving anti-icing and reduced wear, thus improving the service life of the ventilation duct.

CN223975173UActive Publication Date: 2026-03-06SHANXI JIUTONG AUTO PARTS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-04
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

The existing ventilation ducts have poor stability, resulting in severe wear and tear and affecting their service life.

Method used

The design incorporates a combination of heating, protection, and stabilizing components, including an electric heating wire, glass wool layer, polyethylene film, metal foil layer, PVC coating, asphalt coating, rubber tube, and fixing plate on the outside of the ventilation duct, to improve the stability and anti-icing performance of the ventilation duct.

Benefits of technology

It effectively prevents ice buildup inside the ventilation duct, reduces wear, improves thermal efficiency, and extends service life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223975173U_ABST
    Figure CN223975173U_ABST
Patent Text Reader

Abstract

The utility model discloses an anti-icing electric heating crankcase ventilation pipe, and relates to the technical field of ventilation pipes, the anti-icing electric heating crankcase ventilation pipe comprises a heating assembly, and the heating assembly is used for heating the ventilation pipe; the protection assembly is compounded on the outer side of the heating assembly, and the protection assembly is used for protecting the heating assembly; the heating assembly comprises a protection assembly and a stabilizing assembly, the stabilizing assembly is arranged on the outer side of the protection assembly and used for improving the stability of the protection assembly, the heating assembly comprises a ventilation pipe, a plurality of mounting grooves are formed in the center of the surface of one side of the ventilation pipe, and the multiple mounting grooves are each provided with an electric heating wire. According to the utility model, the ventilation pipe can be heated, and the stability of the ventilation pipe can be improved, so that the outer surface of the pipeline can be prevented from being damaged, and the service life of the pipeline can be prolonged.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of ventilation pipe technology, specifically to an anti-icing electrically heated crankcase ventilation pipe. Background Technology

[0002] The crankcase is a key component of an engine, located at the bottom of the cylinder block. Its main function is to house and support the engine's crankshaft, ensuring the proper operation of the crankshaft and other internal parts. Crankcases are typically divided into an upper crankcase and a lower crankcase. The upper crankcase is usually cast integrally with the cylinder block, while the lower crankcase, also known as the oil pan, is generally made of thin steel sheet and is used to store lubricating oil and seal the upper crankcase. The crankcase ventilation pipe is an important part of the engine's emission control system. Its main function is to manage the gas pressure and emissions within the crankcase. Through this system, the internal gas pressure of the engine can be kept balanced, while reducing the emission of harmful gases and protecting the environment.

[0003] Regarding the aforementioned technologies, the inventors believe that the following defects exist: although the ventilation duct can be electrically heated, the ventilation duct has poor stability, which leads to wear on the outside of the ventilation duct and reduces the service life of the duct. Therefore, we propose an anti-icing electrically heated crankcase ventilation duct to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an anti-icing electrically heated crankcase ventilation pipe, which solves the problem of poor ventilation pipe stability.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an anti-icing electrically heated crankcase ventilation pipe, including a heating component, wherein the heating component is used to heat the ventilation pipe;

[0006] A protective component, which is composited on the outside of the heating component, is used to protect the heating component; and

[0007] A stabilizing component is disposed on the outside of the protective component, and the stabilizing component is used to improve the stability of the protective component.

[0008] Preferably, the heating component includes a ventilation duct, a mounting groove is provided at the center of one side surface of the ventilation duct, multiple mounting grooves are provided, each of the multiple mounting grooves is provided with an electric heating wire, a glass wool layer is laminated on the outside of the ventilation duct, and a temperature sensor is provided at the bend of the inner cavity of the ventilation duct.

[0009] Preferably, the protective component includes a polyethylene film, which is laminated to the outside of the glass wool layer, a metal foil layer is laminated to the outside of the polyethylene film, and a PVC coating is laminated to the outside of the metal foil layer.

[0010] Preferably, the outer side of the PVC coating is coated with an asphalt coating, which enhances the sealing and waterproof properties.

[0011] Preferably, the stabilizing component includes a rubber tube disposed on the outside of the asphalt coating, a fixing plate disposed at the bottom of the rubber tube, a limit frame disposed at the center of the top surface of the fixing plate, an installation hole being opened on one side of the limit frame, fixing holes being opened on both sides at the center of the top surface of the fixing plate, and a protective tube being disposed at the bend of the rubber tube.

[0012] Preferably, a rubber ring is provided inside the mounting hole, which is used to reduce wear between the limit frame and the rubber tube.

[0013] Preferably, a protective tube is provided at the bend of the rubber tube, and the protective tube is used to increase the thickness of the rubber tube.

[0014] Beneficial effects

[0015] This invention provides an anti-icing electrically heated crankcase ventilation pipe. Compared with the prior art, it has the following advantages:

[0016] This anti-icing electrically heated crankcase ventilation duct, when heating is required, first fixes the heating component in a preset position, then fixes the protective component to the outside of the heating component. Because a stabilizing component is fixedly connected to the outside of the protective component, it provides support for both the protective and heating components, thereby improving their stability and reducing wear. The heating component then heats the ventilation duct, preventing icing inside and thus avoiding blockages. The protective component further reduces heat loss from the ventilation duct, improving thermal efficiency and minimizing heat loss. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the heating component of this utility model;

[0019] Figure 3 This is a schematic diagram of the protective component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the stabilizing component structure of this utility model.

[0021] In the diagram: 1. Heating component; 11. Ventilation duct; 12. Mounting groove; 13. Electric heating wire; 14. Glass wool layer; 15. Temperature sensor; 2. Protective component; 21. Polyethylene film; 22. Metal foil layer; 23. PVC coating; 24. Asphalt coating; 3. Stabilizing component; 31. Rubber tube; 32. Fixing plate; 33. Limiting bracket; 34. Mounting hole; 35. Rubber ring; 36. Fixing hole; 37. Protective tube. 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 1-4 This utility model provides a technical solution: an anti-icing electrically heated crankcase ventilation pipe, including a heating component 1, which is used to heat the ventilation pipe; a protection component 2, which is attached to the outside of the heating component 1 and is used to protect the heating component 1; and a stabilizing component 3, which is disposed on the outside of the protection component 2 and is used to improve the stability of the protection component 2.

[0024] When the crankcase ventilation pipe needs to be heated, the heating component 1 is first fixedly connected to the preset position, and then the protective component 2 is fixedly connected to the outside of the heating component 1. Since the protective component 2 is fixedly connected to the outside of the stabilizing component 3, the stabilizing component 3 can provide support for the protective component 2 and the heating component 1, thereby improving the stability of the protective component 2 and the heating component 1 and reducing wear. Then, the ventilation pipe can be heated by the heating component 1, thereby preventing icing inside the ventilation pipe and preventing blockage caused by icing. Then, the protective component 2 can prevent and reduce the heat loss from inside the ventilation pipe, thereby improving thermal efficiency and reducing heat loss.

[0025] See Figure 1 , Figure 2The heating component 1 includes a ventilation pipe 11. A mounting groove 12 is provided in the center of one side surface of the ventilation pipe 11. Multiple mounting grooves 12 are provided. Each of the multiple mounting grooves 12 is provided with an electric heating wire 13. A glass wool layer 14 is laminated on the outside of the ventilation pipe 11. A temperature sensor 15 is provided at the bend of the inner cavity of the ventilation pipe 11.

[0026] The ventilation duct 11 in the heating assembly 1 can be installed in a preset position and also provides a mounting base for the mounting slot 12. Since multiple mounting slots 12 are provided and each mounting slot 12 is fixedly connected to an electric heating wire 13, the electric heating wire 13 can heat the ventilation duct 11, thereby preventing oil vapor and other gases inside the ventilation duct from condensing and freezing due to low temperature, so as to keep the ventilation duct unobstructed. Since the ventilation duct 11 is composited with a glass wool layer 14, the air layer between its fibers can effectively reduce heat conduction and convection, thereby maintaining the temperature inside the ventilation duct, so as to prevent freezing caused by rapid heat dissipation. Since a temperature sensor 15 is fixedly connected to the bend in the inner cavity of the ventilation duct 11, and the bend is usually where the airflow speed and temperature change, the temperature sensor 15 can monitor the internal temperature, thereby more accurately measuring the actual temperature inside the ventilation duct, so as to facilitate the staff to detect problems in advance.

[0027] See Figure 1 , Figure 3 The protective component 2 includes a polyethylene film 21, which is laminated to the outside of the glass wool layer 14. A metal foil layer 22 is laminated to the outside of the polyethylene film 21. A PVC coating 23 is laminated to the outside of the metal foil layer 22. An asphalt coating 24 is laminated to the outside of the PVC coating 23. The asphalt coating 24 enhances the sealing and waterproof properties.

[0028] The polyethylene film 21 in the protective component 2 can be laminated to the outside of the glass wool layer 14 and also provides a composite base for the metal foil layer 22. Because the polyethylene film 21 has good waterproof properties, it can effectively prevent moisture from the external environment from entering the glass wool layer 14, thus preventing the glass wool layer 14 from reducing its insulation performance due to water absorption. This protects the internal heating element from moisture and ensures its long-term stable operation. Because the metal foil layer 22 has excellent heat reflectivity, it can reflect heat from inside the ventilation duct back into the duct, further improving the insulation effect and reducing heat loss through radiation. Then, the PVC coating 23, with its excellent wear resistance and chemical corrosion resistance, protects the metal foil layer from external environmental erosion, thus extending its service life. Finally, the asphalt coating 24, with its excellent waterproof sealing performance, further prevents moisture intrusion, thus preventing the PVC coating and metal foil layer from deteriorating due to moisture, further extending their service life.

[0029] See Figure 1 , Figure 4 The stabilizing component 3 includes a rubber tube 31, which is disposed on the outside of the asphalt coating 24. A fixing plate 32 is disposed at the bottom of the rubber tube 31. A limit frame 33 is disposed at the center of the top surface of the fixing plate 32. A mounting hole 34 is opened on one side of the limit frame 33. Fixing holes 36 are opened on both sides of the center of the top surface of the fixing plate 32. A protective tube 37 is disposed at the bend of the rubber tube 31. A rubber ring 35 is disposed in the inner cavity of the mounting hole 34. The rubber ring 35 is used to reduce the wear between the limit frame 33 and the rubber tube 31. The protective tube 37 is disposed at the bend of the rubber tube 31 to increase the thickness of the rubber tube 31.

[0030] By securing the rubber tube 31 in component 3, it can be fixedly connected to the outside of the asphalt coating 24 and provide an installation base for the fixing plate 32. Since the limiting frame 33 is fixedly connected to the center of the top surface of the fixing plate 32, and the limiting frame 33 has a mounting hole 34 on one side, the mounting hole 34 can limit and fix the rubber tube 31, thereby improving the stability of the rubber tube 31 and thus improving the stability of the ventilation pipe 11. Since the fixing plate 32 has fixing holes 36 on both sides of the center of the top surface, the fixing plate 32 can be fixed through the fixing holes 36, thereby allowing the fixing plate 32 to fix the limiting frame 33. The rubber hose 31 is fixed to improve the stability of the ventilation duct 11. This reduces external wear on the ventilation duct 11 and thus reduces temperature loss, ensuring proper ventilation of the engine crankcase. Since the rubber hose 31 is fixedly connected to the bend with the protective hose 37, the structural strength of the bend is increased, thereby reducing damage caused by vibration, thermal expansion and contraction, or other mechanical stresses. At the same time, the bend is a part of the pipe that is easily worn and scratched by external objects, so the protective hose 37 provides a physical barrier to prevent damage to the outer surface of the pipe, thereby extending the service life of the pipe.

[0031] During operation, when the crankcase ventilation pipe needs to be heated, the heating component 1 is first fixedly connected to the preset position, and then the protective component 2 is fixedly connected to the outside of the heating component 1. Since the protective component 2 is fixedly connected to the outside of the stabilizing component 3, the stabilizing component 3 can provide support for the protective component 2 and the heating component 1, thereby improving the stability of the protective component 2 and the heating component 1 and reducing wear. Then, the heating component 1 can heat the ventilation pipe, thereby preventing icing inside the ventilation pipe and preventing blockage caused by icing. Then, the protective component 2 can reduce the heat loss from inside the ventilation pipe, thereby improving thermal efficiency and reducing heat loss.

[0032] The ventilation duct 11 in the heating assembly 1 can be installed in a preset position and also provides a mounting base for the mounting slot 12. Since multiple mounting slots 12 are provided and each mounting slot 12 is fixedly connected to an electric heating wire 13, the electric heating wire 13 can heat the ventilation duct 11, thereby preventing oil vapor and other gases inside the ventilation duct from condensing and freezing due to low temperature, so as to keep the ventilation duct unobstructed. Since the ventilation duct 11 is composited with a glass wool layer 14, the air layer between its fibers can effectively reduce heat conduction and convection, thereby maintaining the temperature inside the ventilation duct, so as to prevent freezing caused by rapid heat dissipation. Since a temperature sensor 15 is fixedly connected to the bend in the inner cavity of the ventilation duct 11, and the bend is usually where the airflow speed and temperature change, the temperature sensor 15 can monitor the internal temperature, thereby more accurately measuring the actual temperature inside the ventilation duct, so as to facilitate the staff to detect problems in advance.

[0033] The polyethylene film 21 in the protective component 2 can be laminated to the outside of the glass wool layer 14 and also provides a composite base for the metal foil layer 22. Because the polyethylene film 21 has good waterproof properties, it can effectively prevent moisture from the external environment from entering the glass wool layer 14, thus preventing the glass wool layer 14 from reducing its insulation performance due to water absorption. This protects the internal heating element from moisture and ensures its long-term stable operation. Because the metal foil layer 22 has excellent heat reflectivity, it can reflect heat from inside the ventilation duct back into the duct, further improving the insulation effect and reducing heat loss through radiation. Then, the PVC coating 23, with its excellent wear resistance and chemical corrosion resistance, protects the metal foil layer from external environmental erosion, thus extending its service life. Finally, the asphalt coating 24, with its excellent waterproof sealing performance, further prevents moisture intrusion, thus preventing the PVC coating and metal foil layer from deteriorating due to moisture, further extending their service life.

[0034] By securing the rubber tube 31 in component 3, it can be fixedly connected to the outside of the asphalt coating 24 and provide an installation base for the fixing plate 32. Since the limiting frame 33 is fixedly connected to the center of the top surface of the fixing plate 32, and the limiting frame 33 has a mounting hole 34 on one side, the mounting hole 34 can limit and fix the rubber tube 31, thereby improving the stability of the rubber tube 31 and thus improving the stability of the ventilation pipe 11. Since the fixing plate 32 has fixing holes 36 on both sides of the center of the top surface, the fixing plate 32 can be fixed through the fixing holes 36, thereby allowing the fixing plate 32 to fix the limiting frame 33. The rubber hose 31 is fixed to improve the stability of the ventilation duct 11. This reduces external wear on the ventilation duct 11 and thus reduces temperature loss, ensuring proper ventilation of the engine crankcase. Since the rubber hose 31 is fixedly connected to the bend with the protective hose 37, the structural strength of the bend is increased, thereby reducing damage caused by vibration, thermal expansion and contraction, or other mechanical stresses. At the same time, the bend is a part of the pipe that is easily worn and scratched by external objects, so the protective hose 37 provides a physical barrier to prevent damage to the outer surface of the pipe, thereby extending the service life of the pipe.

[0035] In summary, this device can both heat the ventilation duct and increase its stability, thereby preventing damage to the outer surface of the duct and extending its service life.

[0036] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. An anti-icing electrically heated crankcase ventilation tube characterized by: Include: Heating assembly (1) for heating treatment of ventilation pipe; Protective assembly (2) is composite in the outer side of the heating assembly (1), the protective assembly (2) is used for protecting the heating assembly (1); And Stable assembly (3) is arranged in the outer side of the protective assembly (2), and the stable assembly (3) is used to improve the stability of the protective assembly (2); The heating assembly (1) includes ventilation pipe (11), the ventilation pipe (11) one side surface central position is provided with installation groove (12), the installation groove (12) is provided with a plurality of, a plurality of installation groove (12) are provided with electric heating wire (13), the outer side of the ventilation pipe (11) is composite glass wool layer (14), the temperature sensor (15) is arranged in the cavity bend of the ventilation pipe (11); The protective assembly (2) includes polyethylene film (21), the polyethylene film (21) is composite in the outer side of glass wool layer (14), the outer side of the polyethylene film (21) is composite metal foil layer (22), the outer side of the metal foil layer (22) is composite PVC coating (23); The stable assembly (3) includes rubber tube (31), the rubber tube (31) is arranged in the outer side of asphalt coating (24), the bottom of the rubber tube (31) is provided with fixed plate (32), the top surface of the fixed plate (32) central position is provided with limiting frame (33), the one side surface of the limiting frame (33) is provided with installation hole (34), the top surface of the fixed plate (32) central position is provided with fixed hole (36) on both sides, the turning portion of the rubber tube (31) is provided with protection tube (37).

2. An electrically heated anti-icing crankcase ventilation tube according to claim 1, characterized in that: The outer side of the PVC coating (23) is composite asphalt coating (24), and the asphalt coating (24) enhances the sealing property and waterproof property.

3. An electrically heated anti-icing crankcase ventilation tube according to claim 1, wherein: The installation hole (34) is provided with rubber ring (35) in the cavity, and the rubber ring (35) is used to reduce the wear between the limiting frame (33) and the rubber tube (31).

4. An electrically heated anti-icing crankcase vent tube according to claim 1 wherein: The turning portion of the rubber tube (31) is provided with protection tube (37), and the protection tube (37) is used to increase the thickness of the rubber tube (31).