Embedded integrated speed reducer suspension structure, speed reducer and new energy vehicle

Abstract

The utility model belongs to the technical field of new energy vehicles, and particularly relates to an embedded type integrated speed reducer suspension structure, a speed reducer and a new energy vehicle. The embedded type integrated speed reducer suspension structure comprises a speed reducer shell, and a differential bearing seat is arranged on the speed reducer shell; the speed reducer shell is further provided with a plurality of suspension bosses arranged around the differential bearing seat, one end of each suspension boss is provided with an open hole, the speed reducer shell is further provided with a first cambered surface envelope, and the first cambered surface envelope extends outwards from the differential bearing seat to the position connected with the suspension bosses. And at least one part of the suspension boss is embedded into the first cambered surface envelope. The rigidity and strength of the speed reducer can be improved, the weight of the speed reducer is reduced, and the NVH characteristic of the speed reducer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, and in particular to an embedded integrated reducer suspension structure, a reducer and a new energy vehicle. Background Art

[0002] The new energy electric drive assembly is mainly composed of drive motors, reducers, controllers, high-voltage wiring harnesses, suspensions and other parts. The housing in the reducer connects the vehicle suspension, motor and electronic control, and absorbs the forces and torques during operation. It is required to have good rigidity, strength characteristics and light weight. Whether the suspension design on the reducer housing is reasonable or not directly affects the performance of the reducer. For example, insufficient strength of the mounting boss of the suspension bolts often leads to boss breakage, and poor stiffness of the suspension point often causes NVH problems for the reducer. The current reducer suspension structure is to design the suspension independently and reinforce it with multiple reinforcing ribs. For example, in the utility model patent with publication number CN203395144U, the suspension boss is independently designed and reinforced with reinforcing ribs. However, this setting method causes the reducer housing structure to be too complicated, with increased weight and low stiffness. Utility Model Content

[0003] In view of this, an embodiment of the utility model provides an embedded integrated reducer suspension structure, a reducer and a new energy vehicle, which are used to solve the technical problem that the setting method of the suspension boss of the suspended reducer in the prior art causes the reducer housing structure to be too complicated, the weight to increase and the rigidity to be low.

[0004] The technical solution adopted by the utility model is:

[0005] In the first aspect, the utility model provides an embedded integrated reducer suspension structure, including a reducer housing, on which a differential bearing seat is arranged, and on which a plurality of suspension bosses arranged around the differential bearing seat are also arranged, and an opening is arranged at one end of the suspension bosses. The reducer housing is also provided with a first arc envelope, and the first arc envelope extends outward from the differential bearing seat to a position connected to the plurality of suspension bosses, and at least a portion of the suspension bosses is embedded in the first arc envelope.

[0006] Preferably, a second arc surface envelope is also provided on the reducer housing, and the second arc surface envelope extends inward from the outer side of the plurality of suspension bosses to a position connected to the plurality of suspension bosses, and at least a portion of the suspension bosses is embedded in the second arc surface envelope.

[0007] Preferably, outside the reducer housing, adjacent suspension bosses are connected via an annular first reinforcing rib.

[0008] Preferably, outside the reducer housing, the plurality of suspension bosses are connected in series via a first annular reinforcing rib.

[0009] Preferably, the first reinforcing rib is integrated with the first arc surface envelope and / or the second arc surface envelope.

[0010] Preferably, the first arc surface envelops a portion between two adjacent suspension bosses to form an inner recessed portion sunken toward the interior of the reducer housing, and the inner recessed portion and the first reinforcing rib between the corresponding two adjacent suspension bosses form a cavity sunken toward the interior of the reducer housing.

[0011] Preferably, the plurality of suspension bosses include at least a first suspension boss, a second suspension boss, a third suspension boss, a fourth suspension boss and a fifth suspension boss which are sequentially arranged around the differential bearing seat.

[0012] Preferably, the ends of the third suspension boss, the fourth suspension boss and the fifth suspension boss located inside the reducer housing are located in the same plane, the parts of the first suspension boss and the second suspension boss located inside the reducer housing are connected by a second annular reinforcing rib, and a vehicle wiring harness bracket boss is also provided on the reducer housing, at least a part of the wiring harness bracket boss is connected to the first reinforcing rib, and the first reinforcing rib is provided with a concave arc-shaped notch.

[0013] In a second aspect, the utility model provides a reducer, which includes the embedded integrated reducer suspension structure described in the first aspect.

[0014] In a third aspect, the utility model provides a new energy vehicle, which includes the embedded integrated reducer suspension structure described in the first aspect or the reducer described in the second utility model.

[0015] Beneficial effects: The embedded integrated reducer suspension structure, reducer and new energy vehicle of the utility model are provided with a plurality of suspension bosses on the reducer housing surrounding the differential bearing seat, so that the differential bearing seat can be stably supported in all directions. The utility model allows the first arc envelope to extend outward from the differential bearing seat to a position connected to each suspension boss, so that at least a portion of the suspension boss is embedded in the first arc envelope. After adopting the above structure, the first arc surface outer envelope on the reducer housing is integrated with each suspension boss, so that the differential bearing seat, the first arc surface outer envelope and each suspension boss form an integrated structure, and the reinforcing ribs connecting the differential bearing seat and each suspension boss in the prior art are omitted. Therefore, not only is the overall structure simpler, but it also has the characteristics of high strength, high rigidity and low weight, and the NVH characteristics of the reducer are also significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for use in the embodiment of the utility model will be briefly introduced below. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the utility model.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the first perspective of the embedded integrated reducer suspension structure in the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the second viewing angle of the embedded integrated reducer suspension structure in the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the embedded integrated reducer suspension structure in the utility model from a third perspective.

[0020] Parts and their numbers in the picture:

[0021] Reducer housing 1, differential bearing seat 11, first arc surface envelope 12, second arc surface envelope 13, first reinforcing rib 14, cavity 15, first suspension boss 161, second suspension boss 162, third suspension boss 163, fourth suspension boss 164, fifth suspension boss 165, placement plane 17, second reinforcing rib 18, arc-shaped notch 181, opening 19, vehicle wiring harness bracket boss 20. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the utility model. Moreover, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "includes..." do not exclude the presence of other identical elements in the process, method, article or device including the elements. If there is no conflict, the embodiments of the utility model and the various features in the embodiments can be combined with each other, all within the scope of protection of the utility model.

[0023] Example 1

[0024] like Figure 1 As shown, this embodiment provides an embedded integrated reducer suspension structure, including a reducer housing 1, on which a differential bearing seat 11 is provided, on which a plurality of suspension bosses arranged around the differential bearing seat 11 are provided, and an opening 19 is provided at one end of the suspension bosses, and on which a first arc envelope 12 is further provided, the reducer housing 1 being provided with the first arc envelope 12, the first arc envelope 12 extending outward from the differential bearing seat 11 to a position connected to the plurality of suspension bosses, and at least a portion of the suspension bosses being embedded in the first arc envelope 12.

[0025] The reducer suspension structure in this embodiment is arranged on the reducer housing 1, wherein the reducer housing 1 is the basic part of the reducer, which assembles the gear transmission components, differential assembly, oil seal, bolts and other parts in the reducer into a whole, and transmits power in a coordinated manner according to a certain transmission relationship. The reducer housing 1 also plays the role of connecting with the vehicle suspension and MUC bracket. The hole set on the suspension boss in this embodiment is used to connect with the vehicle suspension through a connector.

[0026] The reducer housing 1 in this embodiment is a reducer integrated with a differential, so a differential bearing seat 11 is arranged on the reducer housing 1 in this embodiment, and the differential bearing seat 11 is mainly used to install the bearing of the differential, and the differential gear is also located near the differential bearing shaft, and the differential gear is coaxially arranged with the differential bearing seat 11.

[0027] In order to better realize the connection between the differential and the whole vehicle suspension, several suspension bosses are provided in this embodiment, and these suspension bosses surround the differential bearing seat 11 to ensure the structural stability of the differential during operation. The aforementioned first arc envelope 12 is a part of the reducer housing 1, which is arranged on the periphery of the differential gear in a semi-enclosed form. To ensure the normal rotation of the differential gear, the inner wall of the first arc envelope 12 is at a certain distance from the differential gear. The first arc envelope 12 adopts the shape of an arc surface, which can improve the strength of the reducer housing 1. The first arc envelope 12 of this embodiment extends outward from the differential bearing seat 11 to a position connected to each suspension boss, so that at least a part of the suspension boss is embedded in the first arc envelope 12. After adopting the above-mentioned structure, the first curved outer envelope on the reducer housing 1 is integrated with each suspension boss, so that the differential bearing seat 11, the first curved outer envelope and each suspension boss form an integrated structure, and the reinforcing ribs connecting the differential bearing seat 11 and each suspension boss in the prior art are omitted. Therefore, after adopting the above-mentioned reducer housing 1 suspension structure, not only the overall structure is simpler, but also it has the characteristics of high strength, high rigidity and low weight.

[0028] In this embodiment, a second arc surface envelope 13 is further provided on the reducer housing 1. The second arc surface envelope 13 is located on the outside of the plurality of suspension bosses. The second arc surface envelope 13 extends inward to a position connected to the plurality of suspension bosses, and at least a portion of the suspension bosses is embedded in the second arc surface envelope 13.

[0029] The second arc envelope 13 is the outer edge portion of the reducer housing 1. In this embodiment, the second arc envelope 13 extends from the outer edge of the reducer housing 1 toward each suspension boss, so that the second arc envelope 13 is connected to each suspension boss, so that the second arc envelope 13 is integrated with the suspension boss. In this embodiment, the first arc surface and the second arc surface can also be extended to a connected position, so that the first arc surface envelope 12, the second arc surface envelope 13 and each suspension boss are integrated into one, and each suspension boss is embedded in the reducer housing 1, so that the reinforcing ribs used to connect each suspension boss to the outer envelope of the reducer housing 1 are omitted, thereby further simplifying the structure of the reducer housing 1, improving the strength and rigidity of the overall structure, and reducing the weight of the reducer housing 1.

[0030] like Figure 2 and Figure 3 As shown, in this embodiment, on the outside of the reducer housing, adjacent suspension bosses are connected by an annular first reinforcing rib 14. In this embodiment, the connection between each suspension boss is strengthened by the first reinforcing rib 14 between two adjacent suspension bosses, so that each suspension boss forms a whole, so as to better integrate with the reducer housing 1. In this embodiment, the first reinforcing rib 14 can also be extended to a position connected to the first arc surface envelope 12 and / or the second arc surface envelope 13, so that the first reinforcing rib 14 is also integrated with the reducer housing 1, so that each suspension boss is also better integrated with the reducer housing 1 through the first reinforcing rib 14. In this embodiment, a circular arc-shaped notch 181 can also be set on the first reinforcing rib to improve the overall strength and rigidity after connection, and reduce vibration and noise.

[0031] In this embodiment, outside the reducer housing, the plurality of suspension bosses are connected in series through an annular first reinforcing rib 14. This embodiment uses an annular first reinforcing rib 14 to connect all the suspension bosses in series, thereby further improving the integrity of the suspension boss structure and making the suspension bosses better integrated with the reducer housing 1.

[0032] like Figure 3 As shown, in this embodiment, the portion of the first arc envelope 12 between two adjacent suspension bosses forms an inner recessed portion sunken toward the interior of the reducer housing 1, and the inner recessed portion and the first reinforcing rib 14 between the corresponding two adjacent suspension bosses enclose a cavity 15 sunken toward the interior of the reducer housing 1.

[0033] In this embodiment, the portion of the first arc surface envelope 12 between two adjacent suspension bosses and the first reinforcing rib 14 are used to form a sunken cavity, thereby further increasing the rigidity of the reducer.

[0034] After adopting the above structure, each suspension boss, the inner and outer arc surfaces and the first reinforcing rib 14 are fused to form a whole, and by optimizing the fused structure, a cavity is set on the fused structure and located between each suspension boss, thereby further improving the stiffness and NVH (Noise, Vibration, Harshness) characteristics of the reducer.

[0035] In this embodiment, the plurality of suspension bosses at least include a first suspension boss 161, a second suspension boss 162, a third suspension boss 163, a fourth suspension boss 164 and a fifth suspension boss 165 which are sequentially arranged around the differential bearing shaft. In this embodiment, five suspension bosses are arranged around the differential bearing seat 11, thereby providing reliable support for the differential bearing shaft in all directions of the differential bearing seat 11, and improving the stability of the support for the differential bearing seat 11 through the overall structure integrated with the two arc envelopes and the first reinforcing ribs 14.

[0036] In this embodiment, the ends of the third suspension boss 163, the fourth suspension boss 164 and the fifth suspension boss 165 located inside the reducer housing 1 are located in the same plane, that is, Figure 2 The placement plane 17 in the reducer housing 1. In this embodiment, a part of each suspension boss is located inside the reducer housing 1, and a part is located outside the reducer housing 1. In this embodiment, the third suspension boss 163, the fourth suspension boss 164 and the fifth suspension boss 165 are placed on the same plane, and the placement plane 17 is used to fill the space of the three suspension bosses, which not only optimizes the layout of the reducer housing 1, but also reduces the space inside the reducer, and improves the strength and rigidity of the reducer housing 1.

[0037] The reducer housing 1 is also provided with a vehicle wiring harness bracket boss 20, at least a portion of which is connected to the first reinforcing rib 14. In this embodiment, the vehicle wiring harness bracket boss 20 is also integrated into the annular first reinforcing rib 14, which can further optimize the overall layout.

[0038] In this embodiment, the first suspension boss 161 and the second suspension boss 162 are connected in the reducer housing 1 by the annular second reinforcing rib 18. The strength and rigidity of the first suspension boss 161 and the second suspension boss 162 in the reducer housing 1 can be further increased after being connected by the second reinforcing rib 18.

[0039] Example 2

[0040] This embodiment provides a reducer, which includes the embedded integrated reducer suspension structure described in Embodiment 1. Since the reducer in this embodiment adopts the embedded integrated reducer suspension structure in Embodiment 1, the overall structure of the reducer is simpler, and has the characteristics of high strength, high rigidity, and low weight, and the NVH characteristics of the reducer are also significantly improved.

[0041] Example 3

[0042] This embodiment provides a new energy vehicle, which includes the embedded integrated reducer suspension structure described in Embodiment 1 or the reducer described in Embodiment 2. Since the new energy vehicle in this embodiment adopts the aforementioned embedded integrated reducer suspension structure, the overall structure is simple, has the characteristics of high strength, high rigidity and low weight, and the NVH characteristics of the new energy vehicle are also significantly improved.

[0043] The above is a detailed introduction to an embedded integrated reducer suspension structure, a reducer, and a new energy vehicle provided by an embodiment of the utility model.

[0044] The above is only a specific implementation of the present invention. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention.

Claims

1. The embedded integrated reducer suspension structure is characterized by: The invention comprises a reducer housing, on which a differential bearing seat is arranged, and on which a plurality of suspension bosses arranged around the differential bearing seat are arranged, and an opening is arranged at one end of the suspension bosses, and on which a first arc envelope is also arranged, and the first arc envelope extends outward from the differential bearing seat to a position connected to the plurality of suspension bosses, and at least a portion of the suspension bosses is embedded in the first arc envelope.

2. The embedded integrated reducer suspension structure according to claim 1 is characterized in that: The reducer housing is also provided with a second arc surface envelope, which extends inward from the outer side of the plurality of suspension bosses to a position connected to the plurality of suspension bosses, and at least a portion of the suspension bosses is embedded in the second arc surface envelope.

3. The embedded integrated reducer suspension structure according to claim 2 is characterized in that: On the outside of the reducer housing, adjacent suspension bosses are connected via an annular first reinforcing rib.

4. The embedded integrated reducer suspension structure according to claim 3 is characterized in that: On the outside of the reducer housing, the plurality of suspension bosses are connected in series via a first annular reinforcing rib.

5. The embedded integrated reducer suspension structure according to claim 3 is characterized in that: The first reinforcing rib is integrated with the first arc surface envelope and / or the second arc surface envelope.

6. The embedded integrated reducer suspension structure according to claim 5, characterized in that: The first arc surface surrounds a portion between two adjacent suspension bosses to form an inner concave portion sunken toward the interior of the reducer housing, and the inner concave portion and the first reinforcing rib between the corresponding two adjacent suspension bosses form a cavity sunken toward the interior of the reducer housing.

7. The embedded integrated reducer suspension structure according to claim 3 is characterized in that: The plurality of suspension bosses at least include a first suspension boss, a second suspension boss, a third suspension boss, a fourth suspension boss and a fifth suspension boss which are sequentially arranged around the differential bearing seat.

8. The embedded integrated reducer suspension structure according to claim 7, characterized in that: The ends of the third suspension boss, the fourth suspension boss and the fifth suspension boss located inside the reducer housing are located in the same plane, the parts of the first suspension boss and the second suspension boss located inside the reducer housing are connected by a second annular reinforcing rib, and a vehicle wiring harness bracket boss is also provided on the reducer housing, at least a part of the vehicle wiring harness bracket boss is connected to the first reinforcing rib, and an inwardly concave arc-shaped notch is provided on the first reinforcing rib.

9. A reducer, characterized in that: The invention comprises the embedded integrated reducer suspension structure as claimed in any one of claims 1 to 8.

10. New energy vehicle, characterized in that: It comprises the embedded integrated reducer suspension structure as described in any one of claims 1 to 8 or the reducer as described in claim 9.

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