Integrated power supply system cover plate and integrated power supply system

Abstract

The utility model provides an integrated power supply system cover plate and an integrated power supply system, and relates to the technical field of integrated power supply systems. The utility model provides a cover plate of an integrated power supply system. The cover plate comprises a fixed frame, a panel and reinforcing ribs, the fixed frame is connected to the outer contour edge of the panel; the reinforcing ribs comprise an annular rib and a plurality of ribs, the annular rib is connected to the panel, and the ribs are arranged at intervals in the circumferential direction of the annular rib and connected to the panel; the NVH performance of the integrated power supply system cover plate can be improved, the thickness and the weight of the cover plate do not need to be increased, and the integrated power supply system cover plate has the technical advantages of being high in framework strength and low in manufacturing cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of integrated power supply system, especially to an integrated power supply system cover plate and integrated power supply system. BACKGROUND

[0002] Vehicle integrated power supply system as an important part of modern electric vehicles and hybrid electric vehicles, is usually installed in a compact box structure, and adopts a cover plate for packaging to protect the internal components and maintain the overall appearance. The system integrates electric motor, reducer and other key drive components, which is the core of realizing the efficient operation of the vehicle.

[0003] In the field of vehicle design and manufacturing, NVH (Noise, Vibration, Harshness) performance is one of the key indicators to measure the comfort and quality of the vehicle. When the vehicle is in running state, the electric motor, reducer and other moving parts will produce different degrees of vibration. These vibrations will be transmitted to the cover plate of the packaging system through the structure, causing resonance between the cover plate and the internal devices. This resonance not only causes additional noise, but also may cause the NVH performance of the vehicle to exceed the predetermined standard, affecting the driving experience.

[0004] Specifically, during vehicle driving, the change of electric motor operating frequency and reducer working state may cause the vibration energy at a certain frequency to be enhanced, thereby causing resonance between the cover plate and its supporting structure. This phenomenon is more obvious in some specific working conditions, such as acceleration, deceleration or passing through uneven road. The noise produced by resonance will directly enter the vehicle cabin, affecting the quietness inside the vehicle; at the same time, the continuous vibration may have adverse effects on other parts of the vehicle, reducing the reliability and service life of the system.

[0005] In the existing design scheme of vehicle integrated power supply system, a common problem is that although manufacturers have taken various measures to optimize the NVH performance, it is still difficult to completely avoid the resonance problem between the cover plate and the internal devices in actual use. For example, some schemes propose to add sound insulation materials inside the cover plate, which can reduce noise propagation to a certain extent, but this method will significantly increase the manufacturing cost; some schemes consider suppressing vibration by thickening the cover plate, but this also brings the problem of cost increase, more importantly, it increases the weight of the entire system, which is not conducive to the realization of the lightweight design goal of the vehicle. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide an integrated power supply system cover plate and integrated power supply system to alleviate the technical problem of poor NVH performance of the prior art integrated power supply system cover plate.

[0007] The utility model provides a kind of integrated power supply system cover plate, comprising: fixed frame, panel and reinforcing rib;

[0008] The fixed frame is connected to the outer contour edge of the panel;

[0009] The reinforcing rib includes: annular rib and multiple rib ribs, the annular rib is connected to the panel, and multiple rib ribs are arranged along the circumference of the annular rib and are connected to the panel;

[0010] One end of multiple rib ribs is connected to the annular rib, and the other end is connected to the fixed frame.

[0011] In optional implementation, the annular rib includes: inner ring rib and outer ring rib;

[0012] The inner ring rib is located inside the outer ring rib, and the inner ring rib and the outer ring rib are connected to the panel respectively;

[0013] Multiple rib ribs are connected to the inner ring rib and the outer ring rib.

[0014] In optional implementation, the center of the inner ring rib coincides with the center of the outer ring rib.

[0015] In optional implementation, the width M of the inner ring rib and the outer ring rib is 5-6 times of the thickness of the panel.

[0016] In optional implementation, the fixed frame has opposite and parallel short sides along x direction, and the distance between the two short sides is the first contour width A;

[0017] The fixed frame has opposite and parallel long sides along y direction, and the distance between the two long sides is the second contour width B;

[0018] The intersection of the median line of the short side and the median line of the long side coincides with the center of the annular rib.

[0019] In optional implementation, the width L of the rib rib extending from the annular rib to the long side is less than the width J of the rib rib extending from the annular rib to the short side.

[0020] In optional implementation, the width L of the rib rib extending from the annular rib to the long side is 1.6-2 times of the thickness of the panel;

[0021] The width J of the rib rib extending from the annular rib to the short side is 2.5-3 times of the thickness of the panel.

[0022] In an optional embodiment, the first profile width A is 2.2-2.6 times the inner ring ring rib inner diameter D1, and the first profile width A is 1.1-1.4 times the outer ring ring rib inner diameter D2.

[0023] In an optional embodiment, the height dimension of the reinforcing rib is at least 2 times the thickness of the panel.

[0024] In a second aspect, the utility model provides a kind of integrated power system, and the integrated power system is equipped with the integrated power system cover plate of any one of the foregoing embodiments.

[0025] The utility model embodiment brings following beneficial effects: fixed frame is connected to the outer profile edge of panel, reinforcing rib includes: annular rib and multiple rib ribs, annular rib is connected to panel, multiple rib ribs are interval arranged along the circumference of annular rib and are connected to panel, one end of multiple rib ribs is connected to annular rib, and the other end is connected to fixed frame, the NVH performance of integrated power system cover plate can be improved, without increasing cover plate thickness and weight.

[0026] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the specific embodiment or related technology of the utility model, the following will briefly introduce the drawings needed to be used in the specific embodiment or related technology description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor according to these drawings.

[0028] Figure 1 The schematic diagram of the integrated power system cover plate provided by the utility model embodiment is shown in the following figure:

[0029] Figure 2 The front view of the integrated power system cover plate provided by the utility model embodiment is shown in the following figure:

[0030] Figure 3 The size marking schematic diagram of the integrated power system cover plate provided by the utility model embodiment is shown in the following figure:

[0031] Figure 4 The sectional view of the integrated power system cover plate provided by the utility model embodiment is shown in the following figure.

[0032] Figure legend: 100-fixed frame;101-mounting hole;200-panel;300-reinforcing rib;310-annular rib;311-inner ring ring rib;312-outer ring ring rib;320-rib rib. Detailed Implementation

[0033] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 do not 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 on this utility model. Furthermore, the terms "first," "second," and "third" are only used to describe differences in name and should not be construed as indicating or implying relative importance. Physical quantities in formulas, unless otherwise specified, should be understood as basic quantities of the International System of Units (SI) base units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] like Figure 1 As shown, the integrated power system cover provided in this embodiment includes: a fixed frame 100, a panel 200, and reinforcing ribs 300; the fixed frame 100 is connected to the outer contour edge of the panel 200; the reinforcing ribs 300 include: annular ribs 310 and multiple ribs 320, the annular ribs 310 are connected to the panel 200, and the multiple ribs 320 are spaced apart along the circumference of the annular ribs 310 and connected to the panel 200; one end of the multiple ribs 320 is connected to the annular ribs 310 and the other end is connected to the fixed frame 100. Without increasing the thickness of the panel 200, the overall structural strength of the integrated power system cover is improved, and the natural frequency is increased, which can effectively alleviate the influence of external excitation and improve the NVH performance of the integrated power system cover.

[0037] Further, the outer side edge of the fixed frame 100 is provided with a plurality of mounting holes 101, which are located on the outer side extension lines of the plurality of ribbed bars 320 one by one, and the integrated power supply system cover plate can be fixed by mounting bolts through the plurality of mounting holes 101.

[0038] In the embodiment of the utility model, the annular rib 310 comprises: an inner ring rib 311 and an outer ring rib 312; the inner ring rib 311 is located inside the outer ring rib 312, and the inner ring rib 311 and the outer ring rib 312 are connected to the panel 200 respectively; and the plurality of ribbed bars 320 are connected to the inner ring rib 311 and the outer ring rib 312.

[0039] In the alternative embodiment, the annular rib 310 can also comprise at least three layers of annular ribs, and the plurality of layers of annular ribs are coaxially arranged in sequence from inside to outside, so as to be applicable to the case that the panel 200 has a large expansion area, and the structural stability can be improved.

[0040] In the embodiment, the center of the inner ring rib 311 coincides with the center of the outer ring rib 312.

[0041] As shown in Figure 1 , Figure 3 and Figure 4 , the width M of the inner ring rib 311 and the outer ring rib 312 is 5-6 times the thickness E of the panel 200.

[0042] Referring to Figure 1 and Figure 2 , the fixed frame 100 has opposite and parallel short sides along the x direction, and the distance between the two short sides is the first profile width A; the fixed frame 100 has opposite and parallel long sides along the y direction, and the distance between the two long sides is the second profile width B; the intersection of the median lines of the short sides and the median lines of the long sides coincides with the center of the annular rib 310.

[0043] In other words, the intersection of the median lines of the first profile width A size line and the median lines of the second profile width B size line is located at the center of the annular rib 310.

[0044] Further, the width L of the ribbed bar 320 extending from the annular rib 310 to the long side is smaller than the width J of the ribbed bar 320 extending from the annular rib 310 to the short side.

[0045] Specifically, the width L of the ribbed bar 320 extending from the annular rib 310 to the long side is 1.6-2 times the thickness of the panel 200; and the width J of the ribbed bar 320 extending from the annular rib 310 to the short side is 2.5-3 times the thickness of the panel 200.

[0046] In the optional embodiment, the first profile width A is 2.2-2.6 times of the inner ring diameter D1 of the inner ring rib 311, and the first profile width A is 1.1-1.4 times of the inner ring diameter D2 of the outer ring rib 312.

[0047] Further, the height dimension of the reinforcing rib 300 is at least 2 times of the thickness of the panel 200.

[0048] It should be noted that each size parameter can be increased or decreased within the value range, and the integrated power supply system cover plate formed as required can be tested for structural strength through simulation, and modal comparison experiments can also be established between the planar panel and the integrated power supply system cover plate provided in the embodiment, so that the integrated power supply system cover plate obtained on the basis of the above optional embodiment can increase the natural frequency by about two times.

[0049] The integrated power supply system provided by the embodiment of the utility model is equipped with the integrated power supply system cover plate recorded in the above embodiment, and the integrated power supply system has the technical effect of the above integrated power supply system cover plate, and is especially suitable for use on vehicles, and can improve the vehicle NVH performance.

[0050] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. An integrated power system cover, characterized in that, include: Fixed frame (100), panel (200) and reinforcing rib (300); The fixed frame (100) is connected to the outer contour edge of the panel (200); The reinforcing rib (300) includes: annular rib (310) and multiple ribs (320), the annular rib (310) is connected to the panel (200), and the multiple ribs (320) are spaced apart along the circumference of the annular rib (310) and connected to the panel (200). One end of each of the multiple ribs (320) is connected to the annular rib (310), and the other end is connected to the fixed frame (100).

2. The integrated power system cover plate according to claim 1, characterized in that, The annular rib (310) includes: an inner annular rib (311) and an outer annular rib (312); The inner ring rib (311) is located inside the outer ring rib (312), and the inner ring rib (311) and the outer ring rib (312) are respectively connected to the panel (200); All of the aforementioned ribs (320) are connected to the inner ring rib (311) and the outer ring rib (312).

3. The integrated power system cover plate according to claim 2, characterized in that, The center of the inner ring reinforcement (311) coincides with the center of the outer ring reinforcement (312).

4. The integrated power system cover plate according to claim 2, characterized in that, The width M of both the inner ring rib (311) and the outer ring rib (312) is 5 to 6 times the thickness of the panel (200).

5. The integrated power system cover plate according to claim 2, characterized in that, The fixed frame (100) has short sides that are opposite and parallel to each other along the x-direction, and the distance between the two short sides is a first profile width A; The fixed frame (100) has long sides that are opposite and parallel to each other along the y direction, and the distance between the two long sides is the second profile width B; The intersection of the perpendicular bisector of the short side and the perpendicular bisector of the long side coincides with the center of the annular rib (310).

6. The integrated power system cover plate according to claim 5, characterized in that, The width L of the rib (320) extending from the annular rib (310) to the long side is less than the width J of the rib (320) extending from the annular rib (310) to the short side.

7. The integrated power system cover plate according to claim 5, characterized in that, The width L of the rib (320) extending from the annular rib (310) to the long side is 1.6 to 2 times the thickness of the panel (200); The width J of the rib (320) extending from the annular rib (310) to the short side is 2.5 to 3 times the thickness of the panel (200).

8. The integrated power system cover plate according to claim 5, characterized in that, The first profile width A is 2.2 to 2.6 times the inner diameter D1 of the inner ring rib (311), and the first profile width A is 1.1 to 1.4 times the inner diameter D2 of the outer ring rib (312).

9. The integrated power system cover plate according to claim 1, characterized in that, The height of the reinforcing rib (300) is at least twice the thickness of the panel (200).

10. An integrated power supply system, characterized in that, The integrated power system is equipped with the integrated power system cover plate as described in any one of claims 1-9.

Images