Auxiliary frame mounting structure, auxiliary frame and vehicle

Abstract

The auxiliary frame installation structure comprises a vehicle body supporting seat and a vehicle body installation support, the vehicle body supporting seat is provided with a first side vertical face extending in the height direction, the first side vertical face is provided with a first installation hole, and the vehicle body installation support is provided with a top supporting face and a second side vertical face. The top supporting face is located on the top of the second side vertical face, the second side vertical face is provided with a second installation hole and a notch, and the second side vertical face of the automobile body installation support and the first side vertical face of the automobile body supporting seat are matched and fastened through a fastener. Through collision simulation analysis and real vehicle collision measurement, the structure can achieve an expected effect, ensures that the vehicle body supporting seat and the vehicle body mounting bracket can be quickly separated during collision, ensures that a motor assembly in a cabin sinks after collision, avoids impacting a cockpit, effectively protects the safety of a driver and passengers, and improves the safety of the driver and the passengers. And the strength of the joint of the fastener can ensure that the bench test of the auxiliary frame and the durability of a real vehicle meet the standard requirement.

Description

Technical Field

[0001] The utility model is used in the field of vehicles, and particularly relates to a subframe mounting structure, a subframe and a vehicle. Background Art

[0002] The subframe is an important part of the chassis, used to support the front and rear axles and suspension of the car, and connect the suspension system and body system components. The shape of the subframe is crucial to the safety of the entire vehicle, especially the collision performance, which directly affects the safe escape space and injury level of the driver and passengers. Therefore, it is particularly important to design the structure of the subframe so that when the vehicle collides, the parts in the cockpit (such as the motor assembly) can fall off without compressing the space inside the vehicle.

[0003] There are similar products on the market, but the principles are different. Similar products ensure that the mounting bolts and the subframe body are separated when the vehicle collides. However, due to the large tightening torque between the mounting bolts and the body, there may be a risk of them not being able to fall off. In addition, this product has a complex and heavy structure, which has a great impact on cost and is not conducive to mass production cost control, resulting in an imperfect subframe development process, affecting the safety of the entire vehicle as well as the vehicle's handling, comfort, NV and other performance. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art and provides a subframe mounting structure, a subframe and a vehicle.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] In a first aspect, a subframe mounting structure includes a vehicle body support seat and a vehicle body mounting bracket, the vehicle body support seat having a first side elevation extending in a height direction, the first side elevation being provided with a first mounting hole, the vehicle body mounting bracket having a top supporting surface and a second side elevation extending in a height direction, the top supporting surface being located at the top of the second side elevation, the second side elevation being provided with a second mounting hole and a notch extending from the second mounting hole to an edge of the vehicle body mounting bracket, the second side elevation of the vehicle body mounting bracket being matched with the first side elevation of the vehicle body support seat and being fastened by fasteners provided in the first mounting hole and the second mounting hole.

[0007] In combination with the first aspect, in certain implementations of the first aspect, the top support surface is provided with a third mounting hole for connecting to the vehicle body.

[0008] In combination with the first aspect and the above-mentioned implementations, in some implementations of the first aspect, the vehicle body mounting bracket is made of steel by stamping in one piece.

[0009] In combination with the first aspect and the above-mentioned implementations, in certain implementations of the first aspect, the vehicle body mounting bracket includes side panels extending in the height direction, a top panel bent outward from the top of the side wall, and side ribs connected between the top panel and the side panels, the side panels, the top panel and the side ribs at both ends form a nest-shaped space inside the vehicle body mounting bracket, the outer surface of the side panel forms the second side elevation, and the outer surface of the top panel forms the top support surface.

[0010] In combination with the first aspect and the above-mentioned implementations, in some implementations of the first aspect, the second mounting hole is provided on the side panel, and the notch extends from the second mounting hole to the bottom edge of the side panel.

[0011] In combination with the first aspect and the above-mentioned implementations, in some implementations of the first aspect, the first side elevation is provided with a plurality of first mounting holes, and the second side elevation is provided with a plurality of second mounting holes corresponding to the first mounting holes.

[0012] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, it also includes a subframe middle bracket, the subframe middle bracket and the body support seat are both made of aluminum alloy, the top of the subframe middle bracket is provided with a U-shaped groove, the body support seat is installed in the U-shaped groove and welded to the subframe middle bracket.

[0013] In combination with the first aspect and the above-mentioned implementations, in some implementations of the first aspect, it also includes a front longitudinal beam, which is made of aluminum alloy, the rear end of the front longitudinal beam is welded to the subframe middle bracket, and the upper surface of the rear end of the longitudinal beam is provided with a depression for guiding bending.

[0014] In a second aspect, a subframe includes the subframe mounting structure described in any implementation manner in the first aspect.

[0015] In a third aspect, a vehicle comprises the subframe described in any implementation of the second aspect.

[0016] One of the above technical solutions has at least one of the following advantages or beneficial effects: In the technical solution of the utility model, the body support seat and the body mounting bracket form a split structure, the body support seat is used to connect the subframe, the body mounting bracket is used to connect the body, the body support seat and the body mounting bracket are matched through relative side elevations, and are further fastened by fasteners, eliminating the deformation and strength weakening caused by welding of the same material. Through collision simulation analysis and actual vehicle collision measurement, the structure can achieve the expected effect. At the same time, with the help of the notch of the second mounting hole, it is ensured that the body support seat and the body mounting bracket can be quickly separated during the collision, ensuring that the motor assembly in the cabin sinks after the collision to avoid impacting the cockpit, effectively protecting the safety of the driver and passengers, and the strength of the fastener connection can also ensure that the bench test of the subframe and the actual vehicle durability performance meet the benchmark requirements.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 This is an axonometric diagram of an embodiment of the auxiliary frame mounting structure of the utility model;

[0020] Figure 2 yes Figure 1 A side view of the structure of an embodiment shown;

[0021] Figure 3 yes Figure 1 A schematic diagram of the structure of the connection between a vehicle body support seat and a vehicle body mounting bracket according to an embodiment is shown. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0024] In the present utility model, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present utility model, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0026] in, Figure 1 The reference direction coordinate system of the embodiment of the utility model is given below. Figure 1 The embodiment of the utility model is described with reference to the direction shown.

[0027] An embodiment of the utility model provides a sub-frame mounting structure, which can be used for mounting and connecting the sub-frame to a vehicle body.

[0028] See also Figure 1 , Figure 2 , Figure 3The sub-frame mounting structure includes a vehicle body support seat 100 and a vehicle body mounting bracket 200. The vehicle body support seat 100 has a first side elevation 101 extending in the height direction. The first side elevation 101 is provided with a first mounting hole 102 for setting a fastener such as a bolt. The vehicle body mounting bracket 200 has a top supporting surface 201 and a second side elevation 202 extending in the height direction. The top supporting surface 201 is located at the top of the second side elevation 202. The top supporting surface 201 is used to connect with the vehicle body. The second side elevation 202 is used to connect with the vehicle body support seat 100. The second side elevation 202 is provided with a second mounting hole 203 and a second mounting hole 204. The mounting hole 203 extends to the notch 204 at the edge of the vehicle body mounting bracket 200. In other words, the second mounting hole 203 is not a complete hole, but a hole with a notch. The second mounting hole 203 is also used to set fasteners such as bolts. The second side elevation 202 of the vehicle body mounting bracket 200 cooperates with the first side elevation 101 of the vehicle body support seat 100, and is fastened by fasteners 300 set in the first mounting hole 102 and the second mounting hole 203. With the help of the notch 204, in some special cases, the fasteners 300 such as bolts can be released from the second mounting hole 203 through the notch 204, so that the subframe can be detached from the vehicle body.

[0029] Combination Figure 1 , Figure 2 , Figure 3 In the technical solution of the utility model, the body support seat 100 and the body mounting bracket 200 form a split structure. The body support seat 100 is used to connect the subframe, and the body mounting bracket 200 is used to connect the body. The body support seat 100 and the body mounting bracket 200 are matched through relative side elevations, and further fastened by fasteners 300, eliminating the deformation and strength weakening caused by welding of the same material. Through collision simulation analysis and actual vehicle collision measurement, the structure can achieve the expected effect. At the same time, with the help of the notch 204 of the second mounting hole 203, it is ensured that the body support seat 100 and the body mounting bracket 200 can be quickly separated during the collision, ensuring that the motor assembly in the cabin sinks after the collision to avoid impacting the cockpit, effectively protecting the safety of the driver and passengers, and the strength of the fastener 300 connection can also ensure that the bench test of the subframe and the actual vehicle durability performance meet the benchmark requirements.

[0030] In some embodiments, see Figure 1 The top support surface 201 is provided with a third mounting hole 205 for connecting with the vehicle body, so that the vehicle body mounting bracket 200 can be fastened to the vehicle body by fasteners 300 such as bolts, thereby eliminating deformation and strength weakening caused by welding of the same material.

[0031] The vehicle body mounting bracket 200 can be made of aluminum alloy or steel. For example, in some embodiments, the vehicle body mounting bracket 200 is made of steel by stamping. The structure is simplified through simulation analysis, while ensuring optimal strength performance.

[0032] For further information, see Figure 1 , Figure 2 , Figure 3 The vehicle body mounting bracket 200 includes a side plate 206 extending in the height direction, a top plate 207 bent outward from the top of the side wall, and a side rib 208 connected between the top plate 207 and the side plate 206. The side plate 206, the top plate 207 and the side ribs 208 at both ends form a nest-shaped space inside the vehicle body mounting bracket 200. The outer surface of the side plate 206 forms the second side elevation 202, and the outer surface of the top plate 207 forms the top support surface 201. By stamping the vehicle body mounting bracket 200 with a steel plate to form a nest-shaped structure consisting of the side plate 206, the top plate 207 and the side ribs 208 at both ends, it is convenient to arrange fasteners therein and can effectively improve the structural strength of the vehicle body mounting bracket 200.

[0033] Further, in some embodiments, see Figure 2 The second mounting hole 203 is set on the side plate 206, and the notch 204 extends from the second mounting hole 203 to the bottom edge of the side plate 206, which is convenient for installation and reduces the weight of the body mounting bracket 200. In addition, the body support seat 100 and the body mounting bracket 200 can be quickly separated in the event of a collision, ensuring that the motor assembly in the cabin sinks after the collision to avoid impacting the cockpit, thereby effectively protecting the safety of the driver and passengers.

[0034] In some instances, see Figure 1 , Figure 2 The first side elevation 101 is provided with a plurality of first mounting holes 102, and the second side elevation 202 is provided with a plurality of second mounting holes 203 corresponding to the first mounting holes 102. The connection strength and stability of the vehicle body support seat 100 and the vehicle body mounting bracket 200 can be fully guaranteed by the plurality of mounting holes and the plurality of fasteners 300.

[0035] In some embodiments, see Figure 1 , Figure 2 , Figure 3 The sub-frame mounting structure also includes a sub-frame middle bracket 400. The sub-frame middle bracket 400 and the vehicle body support seat 100 are both made of aluminum alloy. A U-shaped groove 401 is provided on the top of the sub-frame middle bracket 400. The vehicle body support seat 100 is installed in the U-shaped groove 401 and welded to the sub-frame middle bracket 400. The sub-frame middle bracket 400 and the vehicle body support seat 100 are both made of aluminum. There are two hollows at the upper end of the vehicle body support seat 100, which can provide space for installing the fastener 300 on the one hand and effectively reduce the weight on the other hand.

[0036] In some embodiments, see Figure 1 , Figure 2 , Figure 3 The sub-frame mounting structure also includes a front longitudinal beam 500, which is made of aluminum alloy. The rear end of the front longitudinal beam 500 is welded to the middle bracket 400 of the sub-frame, and a recess 501 for guiding bending is provided on the upper surface of the rear end of the longitudinal beam. With the help of the recess 501, the motor assembly in the cabin is further ensured to sink after a collision to avoid impacting the cockpit, effectively protecting the safety of the driver and passengers, and the strength of the bolted joint can also ensure that the bench test and actual vehicle durability of the sub-frame meet the benchmark requirements.

[0037] An embodiment of the utility model further provides a sub-frame, comprising the sub-frame mounting structure in any of the above embodiments.

[0038] An embodiment of the utility model further provides a vehicle, comprising the subframe in any one of the above embodiments.

[0039] In the description of this specification, the description with reference to the terms "example", "embodiment" or "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] Of course, the invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A subframe mounting structure, characterized in that: The vehicle body mounting bracket comprises a vehicle body support seat and a vehicle body mounting bracket, wherein the vehicle body support seat has a first side elevation extending in a height direction, the first side elevation is provided with a first mounting hole, the vehicle body mounting bracket has a top support surface and a second side elevation extending in a height direction, the top support surface is located at the top of the second side elevation, the second side elevation is provided with a second mounting hole and a notch extending from the second mounting hole to the edge of the vehicle body mounting bracket, the second side elevation of the vehicle body mounting bracket cooperates with the first side elevation of the vehicle body support seat, and is fastened by fasteners arranged in the first mounting hole and the second mounting hole.

2. The subframe mounting structure according to claim 1, characterized in that: The top supporting surface is provided with a third mounting hole for connecting with the vehicle body.

3. The subframe mounting structure according to claim 1, characterized in that: The vehicle body mounting bracket is made of steel material by stamping in one piece.

4. The subframe mounting structure according to claim 3, characterized in that: The vehicle body mounting bracket includes a side panel extending in a height direction, a top panel bent outward from the top of the side panel, and side ribs connected between the top panel and the side panel. The side panel, the top panel and the side ribs at both ends form a nest-shaped space inside the vehicle body mounting bracket, the outer surface of the side panel forms the second side elevation surface, and the outer surface of the top panel forms the top supporting surface.

5. The subframe mounting structure according to claim 4, characterized in that: The second mounting hole is arranged on the side plate, and the notch extends from the second mounting hole to the bottom edge of the side plate.

6. The subframe mounting structure according to claim 1, characterized in that: The first side elevation is provided with a plurality of first mounting holes, and the second side elevation is provided with a plurality of second mounting holes corresponding to the first mounting holes.

7. The subframe mounting structure according to claim 1, characterized in that: It also includes a sub-frame middle bracket, the sub-frame middle bracket and the body support seat are both made of aluminum alloy, a U-shaped groove is provided on the top of the sub-frame middle bracket, the body support seat is installed in the U-shaped groove and welded to the sub-frame middle bracket.

8. The subframe mounting structure according to claim 7, characterized in that: It also includes a front longitudinal beam, which is made of aluminum alloy. The rear end of the front longitudinal beam is welded to the middle bracket of the sub-frame, and the upper surface of the rear end of the longitudinal beam is provided with a depression for guiding bending.

9. A subframe, characterized in that: The invention comprises the subframe mounting structure according to any one of claims 1 to 8.

10. A vehicle, characterized in that: Comprising the subframe described in claim 9.

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