Oil pan assembly device of double-layer sealing structure and oil leakage early warning method

Abstract

The invention relates to an oil pan assembly device of a double-layer sealing structure. The oil pan assembly device comprises an oil pan body, an outer-layer sealing gasket, an inner-layer sealing gasket, a liquid level sensor and a small plug. An oil suction port is formed in one corner of the upper end face of the oil pan body. A first groove for embedding and mounting the inner-layer sealing gasket is formed in the outer ring of the oil suction port in a surrounding manner; a second groove for embedding and mounting the outer-layer sealing gasket is formed in the position, close to the edge of the inner wall, of the upper end face of the oil pan body in a surrounding manner; the inner-layer sealing gasket is embedded and mounted in the first groove; and the outer-layer sealing gasket is embedded and mounted in the second groove. The invention further relates to an oil leakage early warning method of the oil pan assembly device with the double-layer sealing structure. According to the invention, the leakage failure rate of the oil pan is reduced, and the timeliness and convenience of maintenance are improved.

Description

Technical Field

[0001] The invention relates to the technical field of engine cooling and lubrication systems, and in particular to an oil pan assembly device with a double-layer sealing structure and an oil leakage early warning method. Background Art

[0002] At present, the engine often has the problem of oil leakage at the joint surface between the oil pan and the cylinder block in the after-sales market. According to the after-sales report, there are two main failure modes: 1. Leakage from the oil pan suction port. The engine continuously sucks oil from the suction port to lubricate various moving parts, so it is judged that the sealing performance requirements here are extremely high. 2. Leakage from the joint between the oil pan and the oil pump.

[0003] The defects of the prior art are:

[0004] Although the prior art has a sealing strip, it still cannot be completely sealed, resulting in a high leakage failure rate of the oil pan. Summary of the invention

[0005] In view of the above problems, the present invention provides an oil pan assembly device with a double-layer sealing structure and an oil leakage warning method, the purpose of which is to reduce the leakage failure rate of the oil pan and improve the timeliness and convenience of maintenance.

[0006] To solve the above problems, the technical solution provided by the present invention is:

[0007] The oil pan assembly device of the double-layer sealing structure comprises an oil pan body, an outer sealing gasket, and an inner sealing gasket, wherein:

[0008] An oil suction port is provided at a corner of the upper end surface of the oil pan body; a first groove for embedding and installing the inner layer sealing gasket is arranged around the outer circle of the oil suction port; a second groove for embedding and installing the outer layer sealing gasket is arranged around the upper end surface of the oil pan body near its inner wall edge; the inner layer sealing gasket is embedded and installed in the first groove; and the outer layer sealing gasket is embedded and installed in the second groove.

[0009] Preferably, the second groove is provided with a double-layer sealing groove structure at the junction of the oil pan body and the oil pump; the two layers of the double-layer sealing groove structure are respectively arranged at the junction of the oil pan body and the oil pump close to the outer wall side and the inner wall side; the outer sealing gasket is respectively provided with a first sealing strip and a second sealing strip at the positions corresponding to the double-layer sealing groove structure.

[0010] Preferably, a storage groove for storing oil overflowed when leakage occurs at the inner sealing gasket is provided between the first groove and the second groove.

[0011] Preferably, an oil drain hole for discharging engine oil is provided at one side of the bottom of the storage tank close to the outer wall of the oil pan body; a small screw plug is detachably mounted on the oil drain hole.

[0012] Preferably, a sensor mounting interface for mounting a liquid level sensor is provided on one side of the middle portion of the storage tank close to the outer wall of the oil pan body; the front end of the liquid level sensor is inserted into the storage tank through the sensor mounting interface and is used to monitor the liquid level height of oil leakage in the storage tank.

[0013] Preferably, the liquid level sensor is a digital sensor.

[0014] The oil leakage warning method of the oil pan assembly device using the double-layer sealing structure comprises the following steps:

[0015] S100. When oil leakage occurs at the oil suction port, the leaked oil flows into the storage tank;

[0016] S200. The oil level in the storage tank gradually increases with the leakage amount;

[0017] S300. The liquid level sensor monitors whether the oil level in the storage tank reaches a preset warning threshold, and then performs the following operations according to the monitoring result:

[0018] If it is monitored that the oil level in the storage tank is not higher than the warning threshold, the signal of the level sensor is set to 0;

[0019] If it is monitored that the oil level in the storage tank is higher than the warning threshold, the signal of the level sensor is set to 1, and then S400 is executed;

[0020] S400. Determine whether the duration of the signal of the liquid level sensor being 1 reaches a manually preset warning timing threshold, and then perform the following operations according to the determination result:

[0021] If the duration of the signal of the liquid level sensor being 1 does not reach the warning timing threshold, executing S300;

[0022] If the duration of the signal of the liquid level sensor being 1 reaches the warning timing threshold, execute S500;

[0023] S500. Trigger a fault alarm and send an alarm signal to the vehicle instrument panel; the warning light on the instrument panel flashes;

[0024] S600. When the inner gasket is replaced and the oil in the storage tank is drained, the fault warning is canceled when the signal of the liquid level sensor is 0 and reaches the manually preset warning cancellation timing threshold;

[0025] S700. Send the fault warning cancellation signal to the vehicle instrument panel; the warning light on the instrument panel goes out.

[0026] Preferably, the warning threshold is 1 / 2 of the liquid level height of the storage tank; the warning timing threshold is 5 seconds; and the warning cancellation timing threshold is 5 seconds.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] 1. Since the oil pan assembly of the present invention has an additional sealing layer at the oil suction port, the oil leakage failure rate from this place is reduced.

[0029] 2. Since the oil pan assembly of the present invention has an additional storage tank at the oil suction port, when a problem occurs in the first layer of sealing, the oil leaking at the oil suction port will only flow into the storage tank and will not leak out, thereby reducing the oil leakage failure rate from this place.

[0030] 3. Since the oil pan assembly of the present invention adds a liquid level sensor in the storage tank of the oil suction port, the amount of oil leaking into the tank can be monitored, and timely reminders are given that there is a problem with the oil pan seal, and it is necessary to drive to a service station for repair and replacement, thereby improving the timeliness of repair.

[0031] 4. Since the oil pan assembly of the present invention adds a small screw plug in the storage tank of the oil suction port, during service and maintenance, it is only necessary to remove the small plug to discharge the leaked oil in the storage tank, thereby improving the convenience of maintenance.

[0032] 5. Since the large sealing gasket on the outer layer of the oil pan of the present invention has an additional sealing strip in the T zone, the oil leakage failure rate from this zone is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of a three-dimensional assembly view of an oil pan assembly according to a specific embodiment of the present invention;

[0034] Figure 2 It is a schematic diagram of an oil pan body according to a specific embodiment of the present invention;

[0035] Figure 3 It is a schematic diagram of an inner sealing gasket according to a specific embodiment of the present invention;

[0036] Figure 4 It is a schematic diagram of an outer sealing gasket of a specific embodiment of the present invention;

[0037] Figure 5 A schematic diagram of a liquid level sensor according to a specific embodiment of the present invention;

[0038] Figure 6A schematic diagram of a small screw plug according to a specific embodiment of the present invention;

[0039] Figure 7 It is a schematic diagram of the oil pan assembly structure of a specific embodiment of the present invention;

[0040] Figure 8 It is a schematic diagram of a structural cross-sectional view of an oil suction port of a specific embodiment of the present invention;

[0041] Fig. 9 It is a schematic diagram of a structural cross-sectional view of the junction of an oil pan and an oil pump according to a specific embodiment of the present invention;

[0042] Fig.10 It is a schematic perspective view of the junction between the oil pan and the oil pump of a specific embodiment of the present invention;

[0043] Among them: 100. Oil pan body, 200. Outer sealing gasket, 300. Inner sealing gasket, 400. Liquid level sensor, 500. Small screw plug, 600. Oil pump, 110. Oil suction port, 120. First groove, 130. Second groove, 131. Double-layer sealing groove structure, 140. Storage groove, 150. Oil drain hole, 160. Sensor installation interface, 210. First sealing strip, 220. Second sealing strip DETAILED DESCRIPTION

[0044] The present invention is further explained below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0045] The oil pan assembly device with a double-layer sealing structure comprises an oil pan body 100, an outer sealing gasket 200, and an inner sealing gasket 300, wherein:

[0046] An oil suction port 110 is provided at a corner of the upper end surface of the oil pan body 100; a first groove 120 for embedding and installing an inner sealing gasket 300 is arranged around the outer circle of the oil suction port 110; a second groove 130 for embedding and installing an outer sealing gasket 200 is arranged around the upper end surface of the oil pan body 100 near its inner wall edge; the inner sealing gasket 3 is embedded and installed in the first groove 120; and the outer sealing gasket 200 is embedded and installed in the second groove 130.

[0047] It should be noted that the second groove 130 is provided with a double-layer sealing groove structure 131 at the junction of the oil pan body 100 and the oil pump 600; the two layers of the double-layer sealing groove structure 131 are respectively arranged at the junction of the oil pan body 100 and the oil pump 600 close to the outer wall side and the inner wall side; the outer sealing gasket 200 is respectively provided with a first sealing strip 210 and a second sealing strip 220 at the positions corresponding to the double-layer sealing groove structure 131.

[0048] It should be noted that the inner sealing gasket 300 is used to be attached to the surface of the cylinder body to play the role of the first layer of sealing at the oil suction port 110. The outer sealing gasket 200 is used to be attached to the surface of the cylinder body to play the role of the second layer of sealing at the oil suction port 110; it is also used to be attached to the joint of the cylinder body and the oil pump to play the role of double sealing T zone, thereby reducing the failure rate of oil leakage from the joint.

[0049] In this specific embodiment, The material of the inner sealing gasket 300 is FKM; the material of the outer sealing gasket 200 is AEM.

[0050] It should be further explained that since the inner sealing gasket 300 is far away from the mounting bolts, in order to fully ensure the inner The compression filling rate plays a sealing role. The inner gasket 300 is required to protrude more than the outer gasket after being installed in the groove. The protrusion of 200 is 0.1mm higher.

[0051] It should be further explained that, after adding the inner sealing gasket 300, an extra layer of sealing protection is provided, which can reduce the failure rate of oil leakage from this point.

[0052] It should be noted that a storage groove 140 for storing the oil overflowed when leakage occurs at the inner sealing gasket 300 is provided between the first groove 120 and the second groove 130 .

[0053] It should be further explained that when the engine oil leaks from the inner gasket 300 , it will not flow directly to the outside, but will flow to the storage tank 140 .

[0054] It should be further explained that the storage capacity of the storage tank 140 should be within a reasonable range. If the storage capacity is too large, When the inner gasket 300 fails and leaks a lot, it may not exceed half of the liquid level; on the contrary, if the storage volume is too small, Maybe not much has leaked and the liquid level may have reached half.

[0055] In this specific embodiment, the width of the storage tank 140 is 1.1 to 1.2 times the width of the oil suction port 110; The length of 140 is 1.1 to 1.2 times the length of the oil suction port 110 .

[0056] It should be further explained that an oil drain hole 150 for draining the engine oil is provided at one side of the bottom of the storage tank 140 close to the outer wall of the oil pan body 100 ; a small screw plug 500 is detachably mounted on the oil drain hole 150 .

[0057] It should be further explained that the small screw plug 500 can seal the oil leaking from the inner gasket 300 in the storage groove 140; and the oil therein can be discharged by removing the small screw plug 500, which is convenient for service and maintenance.

[0058] It should be noted that a sensor installation interface 160 for installing a liquid level sensor 400 is provided on one side of the middle of the storage tank 140 close to the outer wall of the oil pan body 100; the front end of the liquid level sensor 400 passes through the sensor installation interface 160 and is inserted into the storage tank 140, and is used to monitor the liquid level height of the oil leakage in the storage tank 140. When the liquid level reaches a certain height, the vehicle dashboard light turns on, reminding the user that it is necessary to enter the station for maintenance.

[0059] It should be further explained that the liquid level sensor 400 is a digital sensor.

[0060] The oil leakage warning method of the oil pan assembly device using the double-layer sealing structure comprises the following steps:

[0061] S100 . When oil leakage occurs at the oil suction port 110 , the leaked oil flows into the storage tank 140 .

[0062] S200. The oil level in the storage tank 140 gradually rises with the leakage amount.

[0063] S300. The liquid level sensor 400 monitors whether the oil level in the storage tank 140 reaches a preset warning threshold, and then performs the following operations according to the monitoring result:

[0064] If it is monitored that the oil level in the storage tank 140 is not higher than the warning threshold, the signal of the level sensor 400 is zero.

[0065] If it is detected that the oil level in the storage tank 140 is higher than the warning threshold, the signal of the level sensor 400 becomes 1, and then S400 is executed.

[0066] S400. Determine whether the duration of the signal of the liquid level sensor 400 being 1 reaches a manually preset warning timing threshold, and then perform the following operations according to the determination result:

[0067] If the duration of the signal of the liquid level sensor 400 being 1 does not reach the warning timing threshold, S300 is executed.

[0068] If the time duration during which the signal of the liquid level sensor 400 is 1 reaches the warning timing threshold, S500 is executed.

[0069] S500. Trigger a fault alarm and send an alarm signal to the vehicle instrument panel; the warning light on the instrument panel flashes.

[0070] S600. When the vehicle replaces the inner gasket 300 and then drains the oil in the storage tank 140, the fault warning is canceled when the signal of the liquid level sensor 400 remains at 0 and reaches the manually preset warning cancellation timing threshold.

[0071] S700. Send the fault warning cancellation signal to the vehicle instrument panel; the warning light on the instrument panel goes out.

[0072] In this specific embodiment, the warning threshold is 1 / 2 of the liquid level height of the storage tank 140; the warning timing threshold is 5 seconds; and the warning cancellation timing threshold is 5 seconds.

[0073] In this specific embodiment, the alarm signal and the fault warning release signal are sent to the vehicle instrument through the engine electronic control module J1939 communication message.

[0074] In the above detailed description, various features are grouped together in a single embodiment to simplify the disclosure. This method of disclosure should not be interpreted as reflecting an intention that the embodiments of the claimed subject matter require more features than are clearly stated in each claim. On the contrary, as reflected in the appended claims, the invention is in a state of having less than all the features of the disclosed individual embodiments. Therefore, the appended claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.

[0075] The disclosed embodiments are described above to enable any person skilled in the art to implement or use the present invention. Various modifications of these embodiments are obvious to those skilled in the art, and the general principles defined herein may also be applied to other embodiments without departing from the spirit and scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments given herein, but is consistent with the broadest scope of the principles and novel features disclosed in this application.

[0076] The above description includes examples of one or more embodiments. Of course, it is not possible to describe all possible combinations of components or methods for the purpose of describing the above embodiments, but it should be recognized by those skilled in the art that the various embodiments may be further combined and arranged. Therefore, the embodiments described herein are intended to cover all such changes, modifications and variations that fall within the scope of protection of the appended claims. In addition, with respect to the term "comprising" used in the specification or claims, the word is covered in a manner similar to the term "including", just as "including," is explained as a transitional word in the claims. In addition, any term "or" used in the specification of the claims is intended to mean "non-exclusive or".

[0077] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An oil pan assembly device with a double-layer sealing structure, characterized in that: It comprises an oil pan body (100), an outer sealing gasket (200), and an inner sealing gasket (300), wherein: An oil suction port (110) is provided at a corner of the upper end surface of the oil sump body (100); a first groove (120) for embedding and installing the inner layer sealing gasket (300) is arranged around the outer ring of the oil suction port (110); a second groove (130) for embedding and installing the outer layer sealing gasket (200) is arranged around the upper end surface of the oil sump body (100) near the inner wall edge thereof; the inner layer sealing gasket (3) is embedded and installed in the first groove (120); and the outer layer sealing gasket (200) is embedded and installed in the second groove (130).

2. The oil pan assembly device with a double-layer sealing structure according to claim 1 is characterized in that: The second groove (130) is provided with a double-layer sealing groove structure (131) at the junction of the oil pan body (100) and the oil pump (600); the two groove positions of the double-layer sealing groove structure (131) are respectively arranged at the outer wall side and the inner wall side of the junction of the oil pan body (100) and the oil pump (600); the outer sealing gasket (200) is provided with a first sealing strip (210) and a second sealing strip (220) at positions corresponding to the double-layer sealing groove structure (131).

3. The oil pan assembly device with a double-layer sealing structure according to claim 2 is characterized in that: A storage groove (140) is provided between the first groove (120) and the second groove (130) for storing the oil that overflows when leakage occurs at the inner sealing gasket (300).

4. The oil pan assembly device with a double-layer sealing structure according to claim 3 is characterized in that: An oil drain hole (150) for draining engine oil is provided at one side of the bottom of the storage tank (140) close to the outer wall of the oil pan body (100); a small screw plug (500) is detachably mounted on the oil drain hole (150).

5. The oil pan assembly device with a double-layer sealing structure according to claim 4 is characterized in that: A sensor installation interface (160) for installing a liquid level sensor (400) is provided at a side of the middle portion of the storage tank (140) close to the outer wall of the oil pan body (100); the front end of the liquid level sensor (400) passes through the sensor installation interface (160) and is inserted into the storage tank (140), and is used to monitor the liquid level height of oil leakage in the storage tank (140).

6. The oil pan assembly device with a double-layer sealing structure according to claim 5 is characterized in that: The liquid level sensor (400) is a digital sensor.

7. An oil leakage warning method for an oil pan assembly device using the double-layer sealing structure of claim 6, characterized in that: The following steps are involved: S100. When oil leakage occurs at the oil suction port (110), the leaked oil flows into the storage tank (140); S200. The oil level in the storage tank (140) gradually rises with the amount of leakage; S300. The liquid level sensor (400) monitors whether the oil level in the storage tank (140) reaches a manually preset warning threshold, and then performs the following operations according to the monitoring result: If it is monitored that the oil level in the storage tank (140) is not higher than the warning threshold, the signal of the liquid level sensor (400) is set to 0; If it is monitored that the oil level in the storage tank (140) is higher than the warning threshold, the signal of the level sensor (400) becomes 1, and then S400 is executed; S400. Determine whether the duration of the signal of the liquid level sensor (400) being 1 reaches a manually preset warning timing threshold, and then perform the following operations according to the determination result: If the time duration during which the signal of the liquid level sensor (400) is 1 does not reach the warning timing threshold, executing S300; If the duration of the signal of the liquid level sensor (400) being 1 reaches the warning timing threshold, S500 is executed; S500. Trigger a fault alarm and send an alarm signal to the vehicle instrument panel; the warning light on the instrument panel flashes; S600. When the vehicle replaces the inner gasket (300) and the oil in the storage tank (140) is emptied, the fault warning is canceled when the signal of the liquid level sensor (400) is continuously at 0 and reaches the manually preset warning cancellation timing threshold; S700. Send the fault warning cancellation signal to the vehicle instrument panel; the warning light on the instrument panel goes out.

8. The oil spill early warning method according to claim 7, characterized in that: The warning threshold is 1 / 2 of the liquid level height of the storage tank (140); the warning timing threshold is 5 seconds; and the warning cancellation timing threshold is 5 seconds.

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