Preheating type oil pan

CN224228741UActive Publication Date: 2026-05-12HUBEI ROBOT TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI ROBOT TECH CO LTD
Filing Date
2025-05-22
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Traditional oil pans require a long preheating time in low-temperature environments, which cannot quickly raise the oil temperature, affecting engine starting performance and operating efficiency. Furthermore, impurities can easily enter the lubrication system and wear down the internal structure of the engine.

Method used

An electric heating plate and heat-conducting fins are installed inside the oil pan. The electric heating wires rapidly heat the lubricating oil, and the heat-conducting fins prevent impurities from depositing and entering the circulation system.

Benefits of technology

It enables rapid heating of lubricating oil, shortens preheating time, ensures rapid engine start-up, and prevents impurities from entering the transmission mechanism, thus protecting the internal structure of the engine.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224228741U_ABST
    Figure CN224228741U_ABST
Patent Text Reader

Abstract

The utility model provides a preheating type oil pan which comprises an oil pan body with openings in the upper end and the lower end, the lower end of the oil pan body is detachably connected with a bottom cover, the upper end of the bottom cover is upwards provided with a supporting seat in the oil pan body, the upper end of the supporting seat is provided with an electric heating disc, and an S-shaped electric heating wire is arranged in the electric heating disc. The outer side of the electric heating disc is provided with a plurality of heat conduction fins, the bottom of the bottom cover is provided with a power connection head, the electric heating wire penetrates through the supporting seat to be electrically connected with the power connection head, the bottom cover is provided with an oil discharge hole, the lower end of the bottom cover is provided with an oil discharge pipe communicated with the oil discharge hole downwards at the oil discharge hole, the inner wall of the oil discharge pipe is provided with internal threads, and the oil discharge pipe is in threaded connection with an oil drainage bolt. The oil drainage bolt extends out of the oil drainage pipe and is provided with a bolt head. Lubricating oil can be rapidly heated in the oil pan, the preheating time can be effectively shortened, and the requirement for rapid starting of an engine can be met.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the technical field of engine components and relates to a preheating oil pan. Background Technology

[0002] In the design and application of internal combustion engines, the oil pan, as a crucial component, plays a vital role in storing lubricating oil. The oil pan not only ensures lubrication between various internal engine components but also dissipates heat from high-speed mechanical parts through a circulation system, preventing damage caused by overheating. However, in low-temperature environments, traditionally designed oil pans face severe challenges. When the outside temperature drops to -10°C or even lower, the viscosity of the oil in the oil pan increases significantly, and its fluidity decreases. This directly leads to difficulty starting the engine, and at the same time, the oil pump's supply of oil to the engine's friction surfaces becomes inadequate, increasing the risk of mechanical wear and shortening the engine's lifespan.

[0003] To address the aforementioned issues, existing technologies typically employ external heaters to preheat the oil pan. Specifically, these heating devices are installed on the outer wall of the oil pan, indirectly raising the temperature of the internal engine oil by heating the outer shell. However, this method has significant limitations. Due to low heat transfer efficiency, the preheating time is long, failing to rapidly raise the engine oil's operating temperature to a suitable range, thus affecting the engine's immediate starting performance and operating efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a preheating oil pan that can rapidly heat the lubricating oil inside the oil pan, effectively shortening the preheating time to meet the needs of rapid engine start-up.

[0005] To solve the above-mentioned technical problems, this utility model provides a preheating oil pan, including an oil pan with openings at both the upper and lower ends. The lower end of the oil pan is detachably connected to a bottom cover. The upper end of the bottom cover is provided with an upward-facing support seat inside the oil pan. An electric heating plate is provided at the upper end of the support seat. An electric heating wire arranged in a serpentine pattern is provided inside the electric heating plate. Multiple heat-conducting fins are provided on the outer side of the electric heating plate. A power connector is provided at the bottom of the bottom cover. The electric heating wire passes through the support seat and is electrically connected to the power connector. The bottom cover has an oil drain hole. An oil drain pipe communicating with the oil drain hole is provided downward at the lower end of the bottom cover. The inner wall of the oil drain pipe has internal threads. An oil drain bolt is threadedly connected to the oil drain pipe. The oil drain bolt extends out of the oil drain pipe and has a bolt head.

[0006] By adopting the above technical solution, when the lubricating oil in the oil pan becomes viscous due to low temperature, the electric heating wire is energized to raise the temperature, which in turn raises the temperature of the electric heating plate. The heat-conducting fins quickly heat the lubricating oil in the oil pan, and impurities generated in the lubricating oil settle to the bottom of the oil pan. Due to the obstruction of the electric heating plate, they are not easily carried by the lubricating oil to the transmission mechanism through the circulation system, thus preventing impurities from mixing into the lubricating oil and damaging the internal structure of the engine.

[0007] The present invention is further configured such that an upper mounting edge is provided on the upper edge of the oil pan, and a plurality of upper mounting holes are provided through the upper mounting edge.

[0008] The present invention is further configured such that the lower edge of the oil pan is provided with a lower mounting edge, and a plurality of lower mounting holes are provided through the lower mounting edge; the edge of the bottom cover is provided with a plurality of connecting holes corresponding to the lower mounting holes; and the bottom cover and the lower end of the oil pan are connected by connecting bolts passing through the corresponding lower mounting holes and the corresponding connecting holes.

[0009] The present invention is further provided with a rubber sealing ring at the upper end of the bottom cover edge that cooperates with the lower mounting edge.

[0010] The present invention is further provided that a sealing rubber ring is provided on one side of the bolt head to cover the drain bolt.

[0011] The present invention is further configured such that the electric heating plate and each heat-conducting fin are made of polyimide material.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] Firstly, this utility model utilizes an electric heating plate to rapidly heat the lubricating oil inside the oil pan, and the heat-conducting fins can further shorten the preheating time to meet the requirements of rapid engine start-up.

[0014] Secondly, by setting up an electric heating plate, this utility model prevents impurities that settle at the bottom of the lubricating oil from being carried into the transmission mechanism by the circulation system, thus preventing impurities from mixing into the lubricating oil and damaging the internal structure of the engine. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 Used to display the upper and lower mounting edges of the oil pan;

[0017] Figure 3 It is a partial cross-sectional view used to show the electric heating wire inside the electric heating plate;

[0018] Figure 4 Used to demonstrate the connection between the drain pipe and the drain bolt.

[0019] The components are as follows: 1. Oil pan; 2. Upper mounting edge; 3. Upper mounting hole; 4. Lower mounting edge; 5. Lower mounting hole; 6. Bottom cover; 7. Connecting hole; 8. Rubber sealing ring; 9. Support base; 10. Electric heating plate; 11. Electric heating wire; 12. Heat-conducting fins; 13. Electrical connector; 14. Oil drain hole; 15. Oil drain pipe; 16. Oil drain bolt; 17. Bolt head; 18. Sealing rubber ring. Detailed Implementation

[0020] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the preheating oil pan proposed in this utility model. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, used only to facilitate and clarify the illustration of the embodiments of this utility model. The same or similar reference numerals in the drawings represent the same or similar parts.

[0021] Example, refer to Figure 1-4 A preheating oil pan includes an oil pan 1 with openings at both the top and bottom. The upper edge of the oil pan 1 is provided with an upper mounting edge 2, through which multiple upper mounting holes 3 are opened. The lower edge of the oil pan 1 is provided with a lower mounting edge 4, through which multiple lower mounting holes 5 are opened. A bottom cover 6 is detachably connected to the lower end of the oil pan 1. The edge of the bottom cover 6 is provided with multiple connecting holes 7 corresponding to the lower mounting holes 5. A rubber sealing ring 8 that mates with the lower mounting edge 4 is provided at the upper edge of the bottom cover 6. The bottom cover 6 and the lower end of the oil pan 1 are connected by connecting bolts passing through the corresponding lower mounting holes 5 and the corresponding connecting holes 7.

[0022] The upper end of the bottom cover 6 is provided with a support base 9 inside the oil pan 1. A horizontally arranged electric heating plate 10 is provided at the upper end of the support base 9. A serpentine electric heating wire 11 is provided inside the electric heating plate 10. Multiple heat-conducting fins 12 are provided on the upper and lower sides of the electric heating plate 10. The electric heating plate 10 and each heat-conducting fin 12 are made of polyimide material. Polyimide material has good insulation and good thermal conductivity. A connector 13 is provided at the bottom of the bottom cover 6. The electric heating wire 11 passes through the support base 9 and is electrically connected to the connector 13, and is connected to an external power source through the connector 13.

[0023] The bottom cover 6 has an oil drain hole 14. At the lower end of the bottom cover 6, an oil drain pipe 15 is provided downward at the oil drain hole 14 and communicates with it. The inner wall of the oil drain pipe 15 has internal threads. An oil drain bolt 16 is threadedly connected to the oil drain pipe 15. The oil drain bolt 16 extends out of the oil drain pipe 15 and has a bolt head 17. A sealing rubber ring 18 is provided on one side of the bolt head 17 to cover the oil drain bolt 16. When it is necessary to change the engine oil or remove sludge, the oil drain bolt 16 can be removed through the bolt head 17 to drain the engine oil in the oil pan 1.

[0024] Working principle: When the lubricating oil in the oil pan becomes viscous due to low temperature, the electric heating wire 11 is energized and heated, which in turn heats the electric heating plate 10. The heat-conducting fins 12 quickly heat the lubricating oil in the oil pan. Impurities generated in the lubricating oil settle to the bottom of the oil pan 1. Due to the obstruction of the electric heating plate 10, they are not easily carried by the lubricating oil to the transmission mechanism through the circulation system, thus preventing impurities from mixing into the lubricating oil and damaging the internal structure of the engine.

[0025] It should also be noted that all terms such as "set up" and similar descriptive words in this application (especially the specification) indicate that two structures have or exist a connection relationship. However, the specific means by which the two are connected are not limited in detail, and are usually conventional connection methods. That is, the means should be understood as prior art and do not need to be elaborated. For example, "m is set up with n" only indicates that structure m has structure n, and whether the two are connected by welding, riveting, adhesive, or integral molding is within the scope of protection of this application. Similarly, "x is rotatably set up with y" only indicates that y and x can rotate relative to each other, and whether the two are connected by a bearing, or whether y directly passes through x and is rotatably connected to x, or other feasible methods, are all within the scope of protection of this application.

[0026] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A preheated oil pan, comprising an oil pan (1) with openings at both the upper and lower ends, characterized in that, The lower end of the oil pan (1) is detachably connected to a bottom cover (6). A support base (9) is provided at the upper end of the bottom cover (6) inside the oil pan (1). An electric heating plate (10) is provided at the upper end of the support base (9). A serpentine electric heating wire (11) is provided inside the electric heating plate (10). Multiple heat-conducting fins (12) are provided on the outer side of the electric heating plate (10). A power connector (13) is provided at the bottom of the bottom cover (6). A hot wire (11) passes through the support base (9) and is electrically connected to the electrical connector (13). The bottom cover (6) has an oil drain hole (14). The lower end of the bottom cover (6) is provided with an oil drain pipe (15) communicating with the oil drain hole (14). The inner wall of the oil drain pipe (15) has internal threads. The oil drain pipe (15) is threadedly connected to an oil drain bolt (16). The oil drain bolt (16) extends out of the oil drain pipe (15) and is provided with a bolt head (17).

2. A preheated oil pan according to claim 1, characterized in that, The upper edge of the oil pan (1) is provided with an upper mounting edge (2), and multiple upper mounting holes (3) are provided through the upper mounting edge (2).

3. A preheated oil pan according to claim 1, characterized in that, The lower edge of the oil pan (1) is provided with a lower mounting edge (4), and multiple lower mounting holes (5) are provided through the lower mounting edge (4). The edge of the bottom cover (6) is provided with multiple connecting holes (7) that correspond one-to-one with the lower mounting holes (5). The bottom cover (6) and the lower end of the oil pan (1) are connected by connecting bolts that pass through the corresponding lower mounting holes (5) and the corresponding connecting holes (7).

4. A preheated oil pan according to claim 3, characterized in that, The upper end of the edge of the bottom cover (6) is provided with a rubber sealing ring (8) that cooperates with the lower mounting edge (4).

5. A preheated oil pan according to claim 1, characterized in that, A sealing rubber ring (18) is provided on one side of the bolt head (17) to cover the drain bolt (16).

6. A preheated oil pan according to claim 1, characterized in that, The electric heating plate (10) and each heat-conducting fin (12) are made of polyimide.