Engine cold start oil heating device and method of operation thereof
By using a motor to drive a heating wire to heat the engine oil during cold starts, the problem of oil sedimentation in low-temperature environments is solved, achieving low-temperature start protection for the engine, reducing wear, and preventing cylinder wall scratches.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FUJIAN HONGKANG POWER TECH CO LTD
- Filing Date
- 2023-12-26
- Publication Date
- 2026-06-23
AI Technical Summary
In low-temperature environments, when the engine starts, the viscous engine oil settles in the oil pan and cannot reach the surface of the engine parts in time. This causes the engine to be in a state of dry friction without oil, which increases wear and may scratch the cylinder walls, shortening the engine's life.
An engine cold start oil heating device was designed. The device uses a motor to drive a threaded rod to bring a heating wire close to the engine oil pan, thereby heating the oil to ensure that it remains fluid during startup and prevents dry friction.
In cold weather, it helps to heat the engine oil, reduce wear during cold starts, prevent cylinder wall scratches, and extend engine life.
Smart Images

Figure CN117703561B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of engine technology, specifically to an engine cold start oil heating device and its working method. Background Technology
[0002] An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. For example, internal combustion engines usually convert chemical energy into mechanical energy. The term "engine" can refer to both the power generating device and the entire machine including the power generating device (e.g., gasoline engine, aircraft engine).
[0003] When starting an engine, engine oil is required. However, in current car engines, especially in low temperatures and winter, the viscous engine oil settles in the oil pan during startup and does not have time to reach the surface of the engine parts. The engine is in a state of dry friction without oil, which increases engine wear and can easily cause serious scratches on the cylinder walls, shortening the engine's service life. Therefore, we provide an engine cold start oil heating device and its working method to solve the above problems. Summary of the Invention
[0004] The purpose of this invention is to provide an engine cold start oil heating device and its working method, which has the advantage of heating the engine oil in cold weather. It solves the problem that when the temperature is low, especially in winter, the viscous oil in the car engine settles in the oil pan and cannot reach the surface of the parts in time. The engine is in a state of dry friction without oil, which increases engine wear and is prone to serious scratches on the cylinder wall.
[0005] To achieve the above objectives, the present invention provides the following technical solution: an engine cold start oil heating device, comprising an engine oil pan, the top of which is connected to an oil pipe, a heating box fitted on the surface of the engine oil pan, a first housing fixedly connected to both sides of the top of the heating box, a limit sleeve fixedly connected to the bottom of the inner wall of the first housing, a fixing plate fixedly connected to the top of both sides of the engine oil pan, a mounting post fixedly connected to the bottom of the fixing plate, the bottom end of the mounting post penetrating into the inner cavity of the limit sleeve, a beveled slot formed on the outer side of the mounting post, a retaining spring fixedly connected to the top and bottom of one side of the inner wall of the first housing, a moving plate fixedly connected to the inner end of the retaining spring, a pull rod fixedly connected to the center of the outer end of the moving plate, the outer end of the pull rod penetrating into the outside of the first housing and fixedly connected to a pull plate, a beveled block fixedly connected to the inner side of the moving plate, the beveled block forming a retaining groove. The inner end of the block extends into the inner cavity of the inclined slot. A second housing is fixedly connected to both sides of the heating box. A motor is fixedly connected to the center of one side of the inner wall of the second housing. A threaded rod is fixedly connected to the output end of the motor. A threaded block is threadedly connected to the surface of the threaded rod. Movable plates are fixedly connected to the top and bottom of the threaded blocks. A guide sleeve is fixedly connected to the side of the movable plate away from the threaded block. A guide rod is slidably connected to the inner cavity of the guide sleeve. Fixed blocks are fixedly connected to both ends of the guide rod. The outer side of the fixed blocks is fixedly connected to the inner wall of the second housing. A movable column is fixedly connected to the inner end of the movable plate. The inner end of the movable column extends into the inner cavity of the heating box and is fixedly connected to an adjusting mounting plate. A heat-conducting seat is fixedly connected to the top and bottom of the inner side of the adjusting mounting plate. A heating tube is fixedly connected to the inner cavity of the heat-conducting seat. A heating wire is sleeved on the surface of the heating tube. The outer end of the heating wire is fixedly connected to the inner side of the heat-conducting seat.
[0006] As a preferred embodiment, a first guide groove is provided at the top and bottom of the inner wall of the first box, a first guide block is slidably connected to the inner cavity of the first guide groove, and the inner side of the first guide block is fixedly connected to the surface of the moving plate.
[0007] As a preferred embodiment, the inner end of the threaded rod is fitted with a bearing seat, and the inner side of the bearing seat is fixedly connected to the inner wall of the second housing.
[0008] As a preferred embodiment, a second guide groove is provided at the top and bottom of the inner wall of the second box, and a second guide block is slidably connected to the inner cavity of the second guide groove. The inner side of the second guide block is fixedly connected to the surface of the guide sleeve.
[0009] As a preferred embodiment, an installation groove is provided at the center of the top of the heating box, and a sealing gasket is bonded to the inner wall of the installation groove, with the surface of the engine oil pan in contact with the inner wall of the sealing gasket.
[0010] As a preferred embodiment, the top of the first housing is provided with a first through groove, and the diameter of the inner cavity of the first through groove is larger than the diameter of the mounting post.
[0011] As a preferred embodiment, a second through groove is provided on the outer side of the first housing, and the diameter of the inner cavity of the second through groove is larger than the diameter of the pull rod.
[0012] As a preferred embodiment, a method for operating an engine cold start oil heating device includes the following steps:
[0013] A. First, insert the heating box onto the surface of the engine oil pan, and simultaneously insert the mounting post into the inner cavity of the first housing. The bottom end of the mounting post presses against the beveled edge of the beveled locking block, causing the beveled locking block to move outward. The movement of the beveled locking block drives the moving plate to move and press against the clamping spring. The movement of the moving plate drives the first guide block to slide in the inner cavity of the first guide groove. The movement of the moving plate drives the pull rod and pull plate to move outward. When the bottom end of the mounting post is inserted into the inner cavity of the limiting sleeve, the beveled locking groove moves to the position of the beveled locking block. The elastic force of the clamping spring resets the moving plate, pull rod, pull plate, and beveled locking block. The beveled locking block resets and inserts into the inner cavity of the beveled locking groove, facilitating the snap-fit installation of the heating box and preventing the heating box from falling off.
[0014] B. When heating the oil in the engine oil pan, the motor is first turned on by the car controller. The motor starts and drives the threaded rod to rotate in the bearing housing. The rotation of the threaded rod drives the threaded block to move on the surface of the threaded rod. The movement of the threaded block drives the movable plate to move. The movement of the movable plate drives the guide sleeve to slide on the surface of the guide rod. The movement of the guide sleeve drives the second guide block to slide in the inner cavity of the second guide groove. The movement of the movable plate drives the movable column to move. The movement of the movable column drives the adjusting mounting plate to move. The movement of the adjusting mounting plate drives the heat conduction seat, heating tube and heating wire to approach the engine oil pan.
[0015] C. Then, the heat-conducting seat, heating tube, and heating wire are turned on by the car controller. The heat-conducting seat, heating tube, and heating wire start to heat the engine oil in the inner cavity of the engine oil pan. This can provide auxiliary heating for the engine oil when the car is cold-started (especially in winter), reduce wear when the car engine is cold-started, and prevent scratches on the cylinder walls. This achieves the advantage of heating the engine oil in cold weather.
[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0017] This invention uses a motor to start a threaded rod that rotates within the bearing housing. The rotation of the threaded rod causes a threaded block to move on its surface. This movement of the threaded block moves a movable plate, which in turn moves a guide sleeve that slides on the guide rod's surface. The movable plate then moves a movable column, which in turn moves an adjusting mounting plate. This movement of the adjusting mounting plate brings the heat-conducting seat, heating pipe, and heating wire closer to the engine oil pan. The heat-conducting seat, heating pipe, and heating wire then begin heating the engine oil within the oil pan. This provides auxiliary heating for the engine oil during cold starts (especially in winter), reducing engine wear and preventing cylinder wall scratches. It achieves the advantage of heating engine oil in cold weather. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a front view of the cross-sectional structure of the present invention;
[0020] Figure 3 This is an enlarged cross-sectional view of the internal structure of the first housing of the present invention;
[0021] Figure 4 This is an enlarged cross-sectional view of the internal structure of the second housing of the present invention.
[0022] In the diagram: 1. Engine oil pan; 2. Oil pipe; 3. Heating box; 4. First box; 5. Limiting sleeve; 6. Fixing plate; 7. Mounting post; 8. Beveled groove; 9. Clamping spring; 10. Moving plate; 11. Pull rod; 12. Pull plate; 13. Beveled block; 14. Second box; 15. Motor; 16. Threaded rod; 17. Threaded block; 18. Movable plate; 19. Guide sleeve; 20. Guide rod; 21. Fixing block; 22. Movable post; 23. Adjusting mounting plate; 24. Heat-conducting seat; 25. Heating tube; 26. Heating wire; 27. First guide groove; 28. First guide block; 29. Bearing seat; 30. Second guide groove; 31. Second guide block. Detailed Implementation
[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0024] Please see Figure 1-4An engine cold start oil heating device includes an engine oil pan 1, with an oil pipe 2 connected to the top of the engine oil pan 1. A heating box 3 is fitted onto the surface of the engine oil pan 1. First housings 4 are fixedly connected to both sides of the top of the heating box 3. Limiting sleeves 5 are fixedly connected to the bottom of the inner wall of the first housing 4. Fixing plates 6 are fixedly connected to the top of both sides of the engine oil pan 1. Mounting posts 7 are fixedly connected to the bottom of the fixing plates 6. The bottom end of the mounting posts 7 penetrates into the inner cavity of the limiting sleeves 5. A beveled groove 8 is provided on the outer side of the mounting posts 7. A retaining spring 9 is fixedly connected to the top and bottom of one side of the inner wall of the first housing 4. A movable plate 10 is fixedly connected to the inner end of the retaining spring 9. A middle section of the outer end of the movable plate 10... A pull rod 11 is fixedly connected to the center of the heating box 3. The outer end of the pull rod 11 extends through to the outside of the first box 4 and is fixedly connected to a pull plate 12. A beveled block 13 is fixedly connected to the inner side of the movable plate 10. The inner end of the beveled block 13 extends through the inner cavity of the beveled slot 8. A second box 14 is fixedly connected to both sides of the heating box 3. A motor 15 is fixedly connected to the center of one side of the inner wall of the second box 14. A threaded rod 16 is fixedly connected to the output end of the motor 15. A threaded block 17 is threadedly connected to the surface of the threaded rod 16. A movable plate 18 is fixedly connected to the top and bottom of the threaded block 17. A guide sleeve 19 is fixedly connected to the side of the movable plate 18 away from the threaded block 17. A guide rod 20 is slidably connected to the inner cavity of the guide sleeve 19. Both ends of the 0 are fixedly connected to fixing blocks 21. The outer side of the fixing blocks 21 is fixedly connected to the inner wall of the second box 14. The inner end of the movable plate 18 is fixedly connected to a movable column 22. The inner end of the movable column 22 penetrates into the inner cavity of the heating box 3 and is fixedly connected to an adjusting mounting plate 23. The top and bottom of the inner side of the adjusting mounting plate 23 are fixedly connected to heat-conducting seats 24. The inner cavity of the heat-conducting seat 24 is fixedly connected to a heating tube 25. A heating wire 26 is sleeved on the surface of the heating tube 25. The outer end of the heating wire 26 is fixedly connected to the inner side of the heat-conducting seat 24. The motor 15 starts and drives the threaded rod 16 to rotate in the inner cavity of the bearing seat 29. The rotation of the threaded rod 16 drives the threaded block 17 to move on the surface of the threaded rod 16 through the thread. The movement of the movable plate 18 causes the guide sleeve 19 to slide on the surface of the guide rod 20. The movement of the movable plate 18 causes the movable column 22 to move, which in turn causes the adjusting mounting plate 23 to move. The movement of the adjusting mounting plate 23 causes the heat-conducting seat 24, the heating tube 25, and the heating wire 26 to approach the engine oil pan 1. The heat-conducting seat 24, the heating tube 25, and the heating wire 26 then begin to heat the oil inside the engine oil pan 1. This provides auxiliary heating for the engine oil during cold starts (especially in winter), reducing wear during engine cold starts and preventing scratches on the cylinder walls. This achieves the advantage of heating the engine oil in cold weather.
[0025] The top and bottom of the inner wall of the first housing 4 are provided with first guide grooves 27. The inner cavity of the first guide groove 27 is slidably connected to a first guide block 28. The inner side of the first guide block 28 is fixedly connected to the surface of the moving plate 10.
[0026] The above technical solution, by setting the first guide groove 27 and the first guide block 28, plays a stabilizing role in the movement of the moving plate 10, thereby increasing the stability of the moving plate 10 during movement.
[0027] The inner end of the threaded rod 16 is fitted with a bearing seat 29, and the inner side of the bearing seat 29 is fixedly connected to the inner wall of the second housing 14.
[0028] The above technical solution, by setting the bearing seat 29, plays a stabilizing role for the threaded rod 16 during rotation, thereby increasing the stability of the threaded rod 16 during rotation.
[0029] The top and bottom of the inner wall of the second housing 14 are provided with second guide grooves 30. The inner cavity of the second guide groove 30 is slidably connected to a second guide block 31. The inner side of the second guide block 31 is fixedly connected to the surface of the guide sleeve 19.
[0030] The above technical solution, by setting the second guide groove 30 and the second guide block 31, plays a stabilizing role for the guide sleeve 19 and the movable plate 18 during movement, thereby increasing the stability of the guide sleeve 19 and the movable plate 18 during movement.
[0031] A mounting slot is provided at the center of the top of the heating box 3, and a sealing gasket is bonded to the inner wall of the mounting slot. The surface of the engine oil pan 1 is in contact with the inner wall of the sealing gasket.
[0032] The above technical solution, by setting the installation channel and sealing gasket, plays a sealing role between the engine oil pan 1 and the heating box 3, thereby increasing the sealing performance between the engine oil pan 1 and the heating box 3.
[0033] The top of the first housing 4 is provided with a first through groove, and the diameter of the inner cavity of the first through groove is larger than the diameter of the mounting post 7.
[0034] Through the above technical solution, by setting the first through groove, the mounting column 7 can be conveniently inserted into and removed from the inner cavity of the first housing 4.
[0035] The outer side of the first housing 4 is provided with a second through groove, and the diameter of the inner cavity of the second through groove is larger than the diameter of the pull rod 11.
[0036] The above technical solution, by setting a second through groove, facilitates the movement of the pull rod 11.
[0037] The working principle of this invention is as follows: a method for operating an engine cold start oil heating device, the method comprising the following steps:
[0038] A. First, insert the heating box 3 onto the surface of the engine oil pan 1, and simultaneously insert the mounting post 7 into the inner cavity of the first housing 4. The bottom end of the mounting post 7 presses against the bevel of the beveled edge block 13, causing the beveled edge block 13 to move outward. The movement of the beveled edge block 13 drives the moving plate 10 to move and press against the clamping spring 9. The movement of the moving plate 10 drives the first guide block 28 to slide in the inner cavity of the first guide groove 27. The movement of the moving plate 10 drives the pull rod 11 and the pull plate 12 to move outward. When the bottom end of the mounting post 7 is inserted into the inner cavity of the limiting sleeve 5, the beveled edge slot 8 moves to the position of the beveled edge block 13. The elastic force of the clamping spring 9 resets the moving plate 10, pull rod 11, pull plate 12 and beveled edge block 13. The beveled edge block 13 resets and inserts into the inner cavity of the beveled edge slot 8, which facilitates the snap-fit installation of the heating box 3 and prevents the heating box 3 from falling off.
[0039] B. When heating the oil in the inner cavity of the engine oil pan 1, the motor 15 is first turned on by the vehicle controller. The motor 15 drives the threaded rod 16 to rotate in the inner cavity of the bearing seat 29. The rotation of the threaded rod 16 drives the threaded block 17 to move on the surface of the threaded rod 16 through the thread. The movement of the threaded block 17 drives the movable plate 18 to move. The movement of the movable plate 18 drives the guide sleeve 19 to slide on the surface of the guide rod 20. The movement of the guide sleeve 19 drives the second guide block 31 to slide in the inner cavity of the second guide groove 30. The movement of the movable plate 18 drives the movable column 22 to move. The movement of the movable column 22 drives the adjusting mounting plate 23 to move. The movement of the adjusting mounting plate 23 drives the heat conduction seat 24, the heating tube 25 and the heating wire 26 to approach the engine oil pan 1.
[0040] C. Then, the heat-conducting seat 24, heating tube 25 and heating wire 26 are turned on by the car controller. The heat-conducting seat 24, heating tube 25 and heating wire 26 start to heat the engine oil in the inner cavity of the engine oil pan 1. It can provide auxiliary heating for the engine oil when the car is cold-started (especially in winter), reduce the wear of the car engine when it is cold-started, and prevent the cylinder wall from being scratched. Thus, it achieves the advantage of heating the engine oil in cold weather.
[0041] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An engine cold start oil heating device, comprising an engine oil pan (1), characterized in that: The top of the engine oil pan (1) is connected to an oil pipe (2). A heating box (3) is fitted on the surface of the engine oil pan (1). A first box body (4) is fixedly connected to both sides of the top of the heating box (3). A limit sleeve (5) is fixedly connected to the bottom of the inner wall of the first box body (4). A fixing plate (6) is fixedly connected to the top of both sides of the engine oil pan (1). A mounting post (7) is fixedly connected to the bottom of the fixing plate (6). The bottom end of the mounting post (7) penetrates into the inner cavity of the limit sleeve (5). An oblique groove (8) is opened on the outer side of the mounting post (7). The first box (4) has a retaining spring (9) fixedly connected to the top and bottom of one side of the inner wall. The retaining spring (9) is fixedly connected to a moving plate (10). The center of the outer end of the moving plate (10) is fixedly connected to a pull rod (11). The outer end of the pull rod (11) extends through to the outside of the first box (4) and is fixedly connected to a pull plate (12). The inner side of the moving plate (10) is fixedly connected to a beveled block (13). The inner end of the beveled block (13) extends through to the inner cavity of the beveled slot (8). The heating box (3) has a second box (1) fixedly connected to both sides. 4) A motor (15) is fixedly connected to the center of one side of the inner wall of the second housing (14). A threaded rod (16) is fixedly connected to the output end of the motor (15). A threaded block (17) is threadedly connected to the surface of the threaded rod (16). A movable plate (18) is fixedly connected to the top and bottom of the threaded block (17). A guide sleeve (19) is fixedly connected to the side of the movable plate (18) away from the threaded block (17). A guide rod (20) is slidably connected to the inner cavity of the guide sleeve (19). A fixing block (21) is fixedly connected to both ends of the guide rod (20). The outer side of the fixed block (21) is fixedly connected to the inner wall of the second box (14). The inner end of the movable plate (18) is fixedly connected to the movable column (22). The inner end of the movable column (22) extends into the inner cavity of the heating box (3) and is fixedly connected to the adjusting mounting plate (23). The top and bottom of the inner side of the adjusting mounting plate (23) are fixedly connected to the heat-conducting seat (24). The inner cavity of the heat-conducting seat (24) is fixedly connected to the heating tube (25). The surface of the heating tube (25) is covered with a heating wire (26). The outer end of the heating wire (26) is fixedly connected to the inner side of the heat-conducting seat (24).
2. The engine cold start oil heating device according to claim 1, characterized in that: The top and bottom of the inner wall of the first box (4) are provided with a first guide groove (27), and the inner cavity of the first guide groove (27) is slidably connected to a first guide block (28). The inner side of the first guide block (28) is fixedly connected to the surface of the moving plate (10).
3. The engine cold start oil heating device according to claim 1, characterized in that: The inner end of the threaded rod (16) is fitted with a bearing seat (29), and the inner side of the bearing seat (29) is fixedly connected to the inner wall of the second housing (14).
4. The engine cold start oil heating device according to claim 1, characterized in that: The top and bottom of the inner wall of the second box (14) are provided with a second guide groove (30), and the inner cavity of the second guide groove (30) is slidably connected to a second guide block (31). The inner side of the second guide block (31) is fixedly connected to the surface of the guide sleeve (19).
5. The engine cold start oil heating device according to claim 1, characterized in that: The heating box (3) has an installation slot at the center of its top, and the inner wall of the installation slot is bonded with a sealing gasket. The surface of the engine oil pan (1) is in contact with the inner wall of the sealing gasket.
6. The engine cold start oil heating device according to claim 1, characterized in that: The top of the first box (4) is provided with a first through groove, and the diameter of the inner cavity of the first through groove is greater than the diameter of the mounting post (7).
7. The engine cold start oil heating device according to claim 1, characterized in that: The outer side of the first box (4) is provided with a second through groove, and the diameter of the inner cavity of the second through groove is greater than the diameter of the pull rod (11).
8. A method for operating an engine cold start oil heating device, characterized in that: Its working method includes the following steps: A. First, insert the heating box (3) onto the surface of the engine oil pan (1), and at the same time, insert the mounting post (7) into the inner cavity of the first housing (4). The bottom end of the mounting post (7) presses against the bevel of the beveled block (13), causing the beveled block (13) to move outward. The movement of the beveled block (13) drives the moving plate (10) to move and press against the clamping spring (9). The movement of the moving plate (10) drives the first guide block (28) to slide in the inner cavity of the first guide groove (27). The movement of the moving plate (10) Drive the pull rod (11) and pull plate (12) to move outward. When the bottom end of the mounting column (7) is inserted into the inner cavity of the limiting sleeve (5), the inclined side slot (8) moves to the position of the inclined side block (13). The elastic force of the pressing spring (9) resets the moving plate (10), pull rod (11), pull plate (12) and inclined side block (13). The inclined side block (13) is reset and inserted into the inner cavity of the inclined side slot (8), which facilitates the snap-fit installation of the heating box (3) and prevents the heating box (3) from falling off. B. When heating the oil in the inner cavity of the engine oil pan (1), first turn on the motor (15) through the car controller. The motor (15) starts and drives the threaded rod (16) to rotate in the inner cavity of the bearing seat (29). The rotation of the threaded rod (16) drives the threaded block (17) to move on the surface of the threaded rod (16). The movement of the threaded block (17) drives the movable plate (18) to move. The movement of the movable plate (18) drives the guide sleeve (19) to slide on the surface of the guide rod (20). The movement of the guide sleeve (19) drives the second guide block (31) to slide in the inner cavity of the second guide groove (30). The movement of the movable plate (18) drives the movable column (22) to move. The movement of the movable column (22) drives the adjusting mounting plate (23) to move. The movement of the adjusting mounting plate (23) drives the heat conduction seat (24), heating tube (25) and heating wire (26) to approach the engine oil pan (1). C. Then, the heat-conducting seat (24), heating tube (25) and heating wire (26) are turned on by the car controller. The heat-conducting seat (24), heating tube (25) and heating wire (26) start to heat the oil in the inner cavity of the engine oil pan (1). This can assist in heating the engine oil when the car is cold-started, reduce the wear of the engine when it is cold-started, and prevent the cylinder wall from being scratched. This achieves the advantage of heating the engine oil in cold weather.