New energy oil pump assembly oil cavity sealing ring

Abstract

This utility model discloses an oil chamber sealing ring for a new energy oil pump assembly, relating to the field of sealing ring technology. It includes an installation component with a groove on it, into which a sealing ring body is placed. The sealing ring body has a cross-section resembling a "7" shape and an elastic positioning part. This utility model, through the "7"-shaped sealing ring body, achieves a high degree of matching between the sealing ring body and the irregular contour of the groove. Its vertical edge fits the sidewall of the groove, and its horizontal edge fits the cover plate, achieving precise fitting of multi-directional sealing surfaces, reducing local gaps, and improving sealing reliability. The elastic positioning part utilizes a hemispherical rubber protrusion that interferes with the positioning hole. During assembly, the rubber protrusion is compressed and embedded into the hole, forming a mechanical lock on the sealing ring body. This effectively restricts the circumferential rotation and axial movement of the sealing ring body, ensuring its fixed position within the groove and preventing uneven compression or misalignment failure due to assembly misalignment.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring technology, specifically to the oil chamber sealing ring of a new energy oil pump assembly. Background Technology

[0002] In the field of new energy vehicles, the oil pump assembly is a key component of the power system, and its oil chamber sealing performance directly affects the stability and safety of the system.

[0003] In the existing technology, oil cavity sealing rings mostly adopt a circular (O-type) or rectangular cross-section structure. However, for irregularly shaped oil cavities, their contours are complex, and the cross-section is a groove in the shape of "7". The circular or rectangular cross-section of the traditional sealing ring is difficult to accurately fit the irregular groove, resulting in local gap leakage on the sealing surface. In addition, circumferential rotation or axial movement is prone to occur during assembly, causing uneven compression and affecting the sealing effect. Utility Model Content

[0004] To solve the above-mentioned technical problems, a sealing ring for the oil chamber of a new energy oil pump assembly is provided, which solves the problems existing in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a sealing ring for the oil chamber of a new energy oil pump assembly, including a mounting component. A groove is provided on the mounting component, and a sealing ring body is placed in the groove. The cross-section of the sealing ring body is shaped like a "7". The groove is adapted to the shape of the sealing ring body. An elastic positioning part is provided on the sealing ring body to prevent its circumferential rotation and axial movement.

[0006] Preferably, the elastic positioning part is a hemispherical rubber protrusion, there are several rubber protrusions, and they are distributed around the outer wall of the sealing ring. The inner wall of the groove is provided with positioning holes that are interference fit with the rubber protrusions.

[0007] Preferably, the sealing ring body is integrally molded from hydrogenated nitrile rubber.

[0008] Preferably, the top surface of the mounting component is detachably mounted with a cover plate by bolts, and the cover plate and the sealing ring body are correspondingly arranged in the vertical direction.

[0009] Compared with the prior art, the advantages of this utility model are:

[0010] (1) By setting the sealing ring body with a cross section similar to "7", the sealing ring body is highly matched with the irregular contour of the groove. Its vertical side fits the side wall of the groove, and its horizontal side fits the cover plate, realizing the precise fit of the multi-directional sealing surface, reducing local gaps and improving sealing reliability.

[0011] (2) By setting the elastic positioning part, the hemispherical rubber protrusion is pressed into the positioning hole during assembly, forming a mechanical lock on the sealing ring body, effectively restricting the circumferential rotation and axial movement of the sealing ring body, ensuring that the sealing ring body is fixed in the groove, and avoiding uneven compression or misalignment failure of the sealing ring body due to assembly offset. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the separation structure between the mounting component and the sealing ring body of this utility model;

[0014] Figure 3 This is a schematic diagram of the sealing ring structure of this utility model.

[0015] The numbers on the map are:

[0016] 1. Mounting component; 2. Groove; 3. Sealing ring body; 4. Cover plate; 5. Rubber protrusion. Detailed Implementation

[0017] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0018] Reference Figure 1-3 As shown, the oil chamber sealing ring of the new energy oil pump assembly includes a mounting part 1. The mounting part 1 has a groove 2, and the sealing ring body 3 is placed in the groove 2. The top surface of the mounting part 1 is detachably installed with a cover plate 4 by bolts, and the cover plate 4 and the sealing ring body 3 are correspondingly arranged in the vertical direction. After assembly, the cover plate 4 can compress the sealing ring body 3 to achieve the sealing function.

[0019] Furthermore, referring to Figure 1-3 As shown, it is worth noting that the cross-section of the sealing ring body 3 is shaped like a "7", and the groove 2 is adapted to the shape of the sealing ring body 3.

[0020] By setting the sealing ring body 3 with a cross-section similar to "7", the sealing ring body 3 is highly matched with the irregular contour of the groove 2. Its vertical side fits the side wall of the groove 2, and its horizontal side fits the cover plate 4, realizing precise fitting of multi-directional sealing surfaces, reducing local gaps, and improving sealing reliability.

[0021] Furthermore, referring to Figure 2 and Figure 3 As shown, it is worth noting that the sealing ring body 3 is provided with an elastic positioning part to prevent its circumferential rotation and axial movement.

[0022] The elastic positioning part is a hemispherical rubber protrusion 5. There are several rubber protrusions 5, which are distributed around the outer wall of the sealing ring body 3. The inner wall of the groove 2 is provided with positioning holes that are interference fit with the rubber protrusions 5.

[0023] By setting the elastic positioning part, the hemispherical rubber protrusion 5 is interference-fitted with the positioning hole. During assembly, the rubber protrusion 5 is compressed and embedded in the hole, forming a mechanical lock on the sealing ring body 3. This effectively restricts the circumferential rotation and axial movement of the sealing ring body 3, ensuring that the sealing ring body 3 is fixed in the groove 2, and avoiding uneven compression or misalignment failure of the sealing ring body 3 due to assembly misalignment.

[0024] Furthermore, it is worth noting that the sealing ring body 3 is integrally molded from hydrogenated nitrile rubber;

[0025] NHBR can be used for extended periods within a wide temperature range of -40℃ to 150℃, with short-term temperature resistance up to 170℃, significantly superior to NBR. It exhibits strong resistance to fuel oil, lubricating oil, hydraulic oil, etc., and is also resistant to chemical media such as acids, alkalis, and esters. It also has excellent aging resistance and ozone resistance, long service life, low price, and easy procurement, making it cost-effective and reliably ensuring sealing function.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sealing ring for the oil chamber of a new energy oil pump assembly, comprising a mounting component (1), wherein a groove (2) is provided on the mounting component (1), and a sealing ring body (3) is placed in the groove (2), characterized in that, The cross-section of the sealing ring body (3) is shaped like a "7". The groove (2) is adapted to the shape of the sealing ring body (3). The sealing ring body (3) is provided with an elastic positioning part to prevent its circumferential rotation and axial movement.

2. The oil chamber sealing ring of the new energy oil pump assembly according to claim 1, characterized in that, The elastic positioning part is a hemispherical rubber protrusion (5), and there are several rubber protrusions (5) that are distributed around the outer wall of the sealing ring body (3).

3. The oil chamber sealing ring of the new energy oil pump assembly according to claim 1, characterized in that, The sealing ring body (3) is integrally molded from hydrogenated nitrile rubber.

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