Suspension pump, suspension system and vehicle

Abstract

The utility model discloses a suspension pump, a suspension system and a vehicle, the suspension pump comprises a control unit upper cover, a control unit bottom shell, a first motor unit shell and a second motor unit shell, the control unit upper cover is connected with the control unit bottom shell, a first sealing piece is arranged between the control unit upper cover and the control unit bottom shell, and a second sealing piece is arranged between the control unit upper cover and the control unit bottom shell. The first motor unit shell and the second motor unit shell are connected with the control unit bottom shell, second sealing pieces are arranged between the first motor unit shell and the control unit bottom shell and between the second motor unit shell and the control unit bottom shell, and the first motor unit shell is connected with the second motor unit shell. And a third sealing element is arranged between the first motor unit shell and the second motor unit shell. According to the utility model, the first sealing element, the second sealing element and the third sealing element are arranged in a split manner, and each sealing path is independent and is adaptive to the assembly tolerance between the corresponding shells, so that local failure caused by uneven compression of integrated sealing in the related technology is avoided.

Description

Technical Field

[0001] This utility model relates to the field of vehicle suspension technology, and in particular to a suspension pump, a suspension system, and a vehicle. Background Technology

[0002] With the acceleration of automotive intelligence and electrification, the intelligent chassis system, as one of the core modules of the vehicle, directly affects the vehicle's handling, safety, and comfort. The suspension pump, as a key component of the active suspension system, undertakes the core functions of power output and dynamic adjustment. It integrates a motor unit, a controller unit, and high-precision electronic components, and must ensure long-term stable operation under complex conditions.

[0003] However, environmental factors such as vibration, temperature changes, humidity, and oil contamination encountered during vehicle operation place stringent requirements on the sealing performance of suspension pumps. At the same time, with the upgrading of electronic and electrical architecture, the functional complexity of controller units has increased, further intensifying the demand for dustproof and waterproof ratings for internal charged carriers.

[0004] In related technologies, suspension pumps employ a three-casing split structure design, achieving sealing connections between multiple casings through a single seal. However, the sealing path at the interface of multiple casings is complex, and the compression deformation of a single seal is difficult to adapt to the assembly tolerances between different casings, easily leading to local seal failure and posing a risk of moisture, short circuits, or contamination to internal electronic components. Furthermore, the integrated sealing scheme between casings requires complete disassembly of the sealing structure when maintaining or replacing a single unit, resulting in low operational efficiency and a high risk of irreversible damage to the seals. The sealing design lacks flexibility and is difficult to adapt to the independent protection requirements of multiple units. Utility Model Content

[0005] This utility model aims to at least partially solve one of the technical problems in the related art.

[0006] Therefore, embodiments of this utility model propose a suspension pump with sealed separation between components, making its application more flexible.

[0007] An embodiment of this utility model also proposes a suspension system.

[0008] An embodiment of this utility model also proposes a vehicle.

[0009] The suspension pump of this utility model embodiment includes a control unit top cover, a control unit bottom shell, a first motor unit shell, and a second motor unit shell. The control unit top cover is connected to the control unit bottom shell, and a first sealing element is provided between the control unit top cover and the control unit bottom shell. The first motor unit shell and the second motor unit shell are respectively connected to the control unit bottom shell, and a second sealing element is provided between the first motor unit shell and the second motor unit shell and the control unit bottom shell. The first motor unit shell is connected to the second motor unit shell, and a third sealing element is provided between the first motor unit shell and the second motor unit shell.

[0010] The suspension pump of this utility model has a separate layout of the first seal, the second seal and the third seal. Each sealing path is independent and adapted to the assembly tolerance between the corresponding housings. This avoids the local failure caused by uneven compression of integrated seals in related technologies, significantly improves dustproof, waterproof and vibration resistance performance, and ensures the long-term stable operation of internal electronic components.

[0011] Furthermore, the control unit and motor unit adopt separate housings and independent seals. When repairing or replacing a single unit, only the corresponding sealing structure needs to be disassembled, avoiding damage to the seals caused by overall disassembly in related technologies, reducing maintenance costs and improving operational efficiency.

[0012] In some embodiments, the first seal is a rectangular annular sealing ring, and a first sealing groove is provided on either the control unit top cover or the control unit bottom shell, and the first seal is installed in the first sealing groove.

[0013] In some embodiments, the second seal includes a first motor sealing ring and a second motor sealing ring, wherein the first motor sealing ring is located between the first motor unit housing and the control unit bottom housing, and the second motor sealing ring is located between the second motor unit housing and the control unit bottom housing.

[0014] In some embodiments, the control unit bottom shell is provided with a first annular protrusion and a second annular protrusion, the first motor unit housing is provided with a first motor sealing groove, and the second motor unit housing is provided with a second motor sealing groove. The control unit bottom shell presses the first motor sealing ring into the first motor sealing groove through the first annular protrusion, and the control unit bottom shell presses the second motor sealing ring into the second motor sealing groove through the second annular protrusion.

[0015] In some embodiments, the second seal is a H-shaped structure, and the bottom shell of the control unit is provided with a second sealing groove that matches the second seal. The second seal is installed in the second sealing groove. The second seal includes a first motor sealing ring, a second motor sealing ring, and a sealing strip. The first motor sealing ring is detachably connected to one end of the sealing strip in its width direction, and the second motor sealing ring is detachably connected to the other end of the sealing strip in its width direction.

[0016] In some embodiments, the third seal is generally U-shaped, and a third sealing groove is provided on either the first motor unit housing or the second motor unit housing, and the third seal is installed in the third sealing groove.

[0017] In some embodiments, the first seal, the second seal, and the third seal are made of rubber or silicone.

[0018] In some embodiments, the first seal, the second seal, and the third seal are all sealant. The first seal is applied to the sealing surface between the control unit top cover and the control unit bottom shell. The second seal is applied to the sealing surface between the first motor unit housing and the second motor unit housing and the control unit bottom shell. The third seal is applied to the sealing surface between the first motor unit housing and the second motor unit housing.

[0019] The suspension system of this utility model embodiment includes the suspension pump described in any of the above embodiments.

[0020] The vehicle of this utility model embodiment includes the suspension pump described in any of the above embodiments, or the suspension system described in the above embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the suspension pump according to an embodiment of the present invention.

[0022] Figure 2 This is an exploded schematic diagram of a suspension pump according to an embodiment of the present invention.

[0023] Figure 3 This is an exploded schematic diagram of a suspension pump according to another embodiment of the present invention.

[0024] Figure label:

[0025] 1-Control unit top cover, 2-Control unit bottom shell, 3-First motor unit shell, 4-Second motor unit shell, 5-First seal, 6-Second seal, 61-First motor sealing ring, 62-Second motor sealing ring, 63-Sealing strip, 7-Third seal. Detailed Implementation

[0026] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0027] The suspension pump of this utility model embodiment is described below with reference to the accompanying drawings.

[0028] like Figures 1 to 3 As shown, the suspension pump of this utility model embodiment includes a control unit top cover 1, a control unit bottom shell 2, a first motor unit shell 3, and a second motor unit shell 4.

[0029] The control unit top cover 1 and the control unit bottom shell 2 are connected by bolts, and a first sealing element 5 is provided between the control unit top cover 1 and the control unit bottom shell 2. The first motor unit housing 3 and the second motor unit housing 4 are respectively connected to the control unit bottom shell 2 by bolts, and a second sealing element 6 is provided between the first motor unit housing 3 and the second motor unit housing 4 and the control unit bottom shell 2. The first motor unit housing 3 and the second motor unit housing 4 are connected by bolts, and a third sealing element 7 is provided between the first motor unit housing 3 and the second motor unit housing 4.

[0030] The suspension pump of this utility model has a separate layout of the first seal 5, the second seal 6 and the third seal 7. Each sealing path is independent and adapted to the assembly tolerance between the corresponding housings. This avoids the local failure caused by uneven compression of integrated seals in related technologies, significantly improves dustproof, waterproof and vibration-resistant performance, and ensures the long-term stable operation of internal electronic components.

[0031] Furthermore, the control unit and motor unit adopt separate housings and independent seals. When repairing or replacing a single unit, only the corresponding sealing structure needs to be disassembled, avoiding damage to the seals caused by overall disassembly in related technologies, reducing maintenance costs and improving operational efficiency.

[0032] The split-type sealing design allows for flexible adjustment of the housing layout and seal shape, enabling rapid adaptation to different power motor units or functional expansion needs, and providing a technical foundation for the iterative upgrade of intelligent suspension systems.

[0033] The seal can be a sealing ring (gasket) or sealant. That is, the sealing form of the seal can include two types: one is a sealing form that uses a sealing ring and a sealing groove, and the other is a sealing form that uses sealant applied to the sealing surface.

[0034] Understandably, the first seal 5, the second seal 6, and the third seal 7 can independently select sealing rings (gaskets) or sealant options. For example, the first seal 5 can use a silicone sealing ring (temperature resistant, easy to disassemble) or polyurethane sealant to facilitate maintenance of the electronic components inside the control unit; the second seal 6 can use a fluororubber H-shaped sealing ring (oil resistant) or epoxy sealant (oil resistant, high bonding strength); and the third seal 7 can use a nitrile rubber convex sealing ring (vibration resistant) or silicone sealant (elastic seal). The sealing method is dynamically matched according to operating conditions (such as vibration intensity, media type, and maintenance requirements) to avoid the technical limitations of a single solution.

[0035] The following describes in detail the suspension pump in which each sealing element of the present invention adopts a sealing ring (gasket) sealing form.

[0036] The first seal 5, the second seal 6, and the third seal 7 are made of rubber or silicone. If the suspension pump operates in an environment containing oil, the second seal 6 and the third seal 7 are made of nitrile rubber (with excellent oil resistance), and the first seal 5 is made of silicone (with excellent temperature resistance). If high-frequency disassembly and maintenance are required (such as for the control unit), the first seal 5 can be made of fluorosilicone (with strong tear resistance).

[0037] In some embodiments, such as Figures 1 to 3 As shown, the first sealing element 5 is a rectangular annular sealing ring. The first sealing groove (not shown in the figure) is provided on either the control unit top cover 1 or the control unit bottom shell 2. The first sealing element 5 is installed in the first sealing groove.

[0038] Understandably, a first sealing groove is formed on either the control unit top cover 1 or the control unit bottom cover 2 (e.g., the top surface of the bottom cover or the bottom surface of the top cover). The depth and width of the sealing groove are designed according to the seal compression ratio (e.g., 15%-30%). Single-sided grooving simplifies the processing, reduces manufacturing costs, and avoids seal failure caused by misalignment errors in double grooves. The edges of the sealing groove are designed with rounded corners or chamfers to prevent the seal from being sheared and damaged during assembly.

[0039] A rectangular cross-section annular groove (first sealing groove) is machined on the top surface of the control unit bottom shell 2. The groove depth is 70%-80% of the height of the first seal 5 when it is not compressed (for example, the height of the first seal 5 is 4mm and the groove depth is 3mm). The groove width is slightly larger than the width of the first seal 5 (for example, the width of the first seal 5 is 3mm and the groove width is 3.2mm) to ensure that the first seal 5 is not easy to fall off after pre-installation.

[0040] The first seal 5 is embedded in the first sealing groove of the control unit bottom shell 2. The control unit top cover 1 is pressed against the control unit bottom shell 2 by bolts, so that the first seal 5 is compressed to the design height (e.g., compression rate 20%). A guide slope (e.g., 30°) is provided at the edge of the first sealing groove to guide the control unit top cover 1 and the control unit bottom shell 2 to align during assembly and prevent the first seal 5 from being squeezed out of the groove.

[0041] In some embodiments, such as Figure 1 and Figure 2 As shown, the second sealing element 6 includes a first motor sealing ring 61 and a second motor sealing ring 62. The first motor sealing ring 61 is located between the first motor unit housing 3 and the control unit bottom housing 2, and the second motor sealing ring 62 is located between the second motor unit housing 4 and the control unit bottom housing 2.

[0042] Optionally, the control unit bottom shell 2 is provided with a first annular protrusion and a second annular protrusion, the first motor unit housing 3 is provided with a first motor sealing groove, and the second motor unit housing 4 is provided with a second motor sealing groove. The control unit bottom shell 2 presses the first motor sealing ring 61 into the first motor sealing groove through the first annular protrusion, and the control unit bottom shell 2 presses the second motor sealing ring 62 into the second motor sealing groove through the second annular protrusion.

[0043] Understandably, independently sealing the connection interface between the left and right motor units and the control unit avoids a chain reaction caused by seal failure. The height of the first and second annular protrusions is slightly greater than the uncompressed thickness of the sealing ring (e.g., if the sealing ring is 3mm thick, the protrusion height is 3.2mm). The groove depth of the first and second motor sealing grooves is 80%-90% of the thickness of the sealed ring after compression (e.g., when the compression rate is 20%, the groove depth is ≈2.4mm). Through the interference fit between the protrusions and grooves, the compression rate of the sealing ring is precisely controlled, ensuring uniform interface contact stress.

[0044] The sealing ring can be pre-installed in the sealing groove of the motor unit, and the control unit bottom shell 2 can be pressed in by the protrusion to complete the seal, reducing assembly time. A radial deviation of ±0.3mm between the motor unit housing and the control unit bottom shell 2 is permissible; the protrusion-groove structure compensates for this deviation through deformation, enhancing fault tolerance. When replacing a single motor unit, only the corresponding sealing ring needs to be removed, without damaging the sealing interface between the control unit and other motor units, reducing maintenance costs.

[0045] In other embodiments, such as Figure 1 and Figure 3 As shown, the second seal 6 has a H-shaped structure, and the control unit bottom shell 2 is provided with a second sealing groove that matches the second seal 6. The second seal 6 is installed in the second sealing groove.

[0046] Optionally, the second seal 6 includes a first motor sealing ring 61, a second motor sealing ring 62, and a sealing strip 63. The first motor sealing ring 61 is detachably connected to one end of the sealing strip 63 in its width direction, and the second motor sealing ring 62 is detachably connected to the other end of the sealing strip 63 in its width direction.

[0047] Understandably, the second seal 6 consists of a first motor sealing ring 61, a second motor sealing ring 62, and a transverse sealing strip 63. The two ends of the sealing strip 63 in the width direction are detachably connected to the first motor sealing ring 61 and the second motor sealing ring 62 respectively (e.g., via snap-fit ​​or tenon joint). The transverse sealing strip 63 separates the cavity between the control unit and the motor unit into an independent sealing area, while the detachable design allows for independent replacement of individual sealing rings.

[0048] If the first motor seal ring 61 is damaged, it is only necessary to disconnect it from the sealing strip 63 (e.g., by pulling out the clip), without disassembling the entire H-shaped seal, thus shortening maintenance time. The interface between the sealing strip 63 and the motor seal ring is standardized, supporting quick replacement of seal rings of different materials or sizes to adapt to diverse operating conditions.

[0049] In some embodiments, such as Figures 1 to 3 As shown, the third seal 7 is generally convex in shape. The third sealing groove is provided on either the first motor unit housing 3 or the second motor unit housing 4. The third seal 7 is installed in the third sealing groove.

[0050] Understandably, the cross-section of the third seal 7 is convex, including a main body and a protruding part. A third sealing groove is opened on either the first motor unit housing 3 or the second motor unit housing 4, while the other housing maintains a flat or slightly convex structure. Through the convex seal + single-sided sealing groove design, a long-lasting seal with high resistance to misalignment and vibration is achieved between the suspension pump motor units, while significantly reducing processing and assembly costs.

[0051] The following describes in detail the suspension pump in which each sealing element of the present invention adopts a sealing form using sealant.

[0052] The first seal 5 uses a single-component polyurethane sealant, which is applied to the sealing surface between the control unit top cover 1 and the control unit bottom shell 2, and cured at room temperature to fill in processing errors and achieve waterproofing.

[0053] The second seal 6 is made of oil-resistant epoxy adhesive, which is applied to the sealing surface between the first motor unit housing 3 and the second motor unit housing 4 and the control unit bottom housing 2 by a dispensing machine along a Z-shaped path. It is then heated and cured, resulting in high bonding strength and resistance to long-term immersion in gear oil.

[0054] The third seal 7 uses silicone sealant, which is applied to the convex sealing surface between the first motor unit housing 3 and the second motor unit housing 4. After the sealant is applied, the two housings are pressed together to form an elastic sealing layer to compensate for assembly misalignment.

[0055] The suspension system of this utility model embodiment includes the suspension pump in any of the above embodiments.

[0056] The vehicle of this utility model embodiment includes the suspension pump of any of the above embodiments, or the suspension system of the above embodiments.

[0057] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0061] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0062] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A suspension pump, characterized in that, The device includes a control unit top cover, a control unit bottom shell, a first motor unit shell, and a second motor unit shell. The control unit top cover is connected to the control unit bottom shell, and a first sealing element is provided between the control unit top cover and the control unit bottom shell. The first motor unit shell and the second motor unit shell are respectively connected to the control unit bottom shell, and a second sealing element is provided between the first motor unit shell and the second motor unit shell and the control unit bottom shell. The first motor unit shell is connected to the second motor unit shell, and a third sealing element is provided between the first motor unit shell and the second motor unit shell.

2. The suspension pump according to claim 1, characterized in that, The first sealing element is a rectangular annular sealing ring. A first sealing groove is provided on either the top cover of the control unit or the bottom shell of the control unit, and the first sealing element is installed in the first sealing groove.

3. The suspension pump according to claim 1, characterized in that, The second seal includes a first motor sealing ring and a second motor sealing ring. The first motor sealing ring is located between the first motor unit housing and the control unit bottom housing, and the second motor sealing ring is located between the second motor unit housing and the control unit bottom housing.

4. The suspension pump according to claim 3, characterized in that, The control unit bottom shell is provided with a first annular protrusion and a second annular protrusion. The first motor unit outer shell is provided with a first motor sealing groove, and the second motor unit outer shell is provided with a second motor sealing groove. The control unit bottom shell presses the first motor sealing ring into the first motor sealing groove through the first annular protrusion, and the control unit bottom shell presses the second motor sealing ring into the second motor sealing groove through the second annular protrusion.

5. The suspension pump according to claim 1, characterized in that, The second seal is a H-shaped structure. The bottom shell of the control unit is provided with a second sealing groove that matches the second seal. The second seal is installed in the second sealing groove. The second seal includes a first motor sealing ring, a second motor sealing ring, and a sealing strip. The first motor sealing ring is detachably connected to one end of the sealing strip in its width direction, and the second motor sealing ring is detachably connected to the other end of the sealing strip in its width direction.

6. The suspension pump according to claim 1, characterized in that, The third sealing element is generally convex in shape, and a third sealing groove is provided on either the first motor unit housing or the second motor unit housing, and the third sealing element is installed in the third sealing groove.

7. The suspension pump according to any one of claims 1-6, characterized in that, The first seal, the second seal, and the third seal are made of rubber or silicone.

8. The suspension pump according to claim 1, characterized in that, The first seal, the second seal, and the third seal are all sealant. The first seal is applied to the sealing surface between the top cover of the control unit and the bottom shell of the control unit. The second seal is applied to the sealing surface between the first motor unit housing and the second motor unit housing and the bottom shell of the control unit. The third seal is applied to the sealing surface between the first motor unit housing and the second motor unit housing.

9. A suspension system, characterized in that, Includes the suspension pump as described in any one of claims 1-8.

10. A vehicle, characterized in that, It includes the suspension pump as described in any one of claims 1-8, or the suspension system as described in claim 9.

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