A front body structure for mounting a powertrain cooling gasket

Abstract

The application discloses a front body structure for mounting a power assembly cooling rubber pad; the structure mainly comprises a front end structure upper beam, left and right side columns and a rubber pad mounting box body arranged in the main body of the upper beam. The rubber pad mounting box body has a rectangular contour, and the functional sizes in X, Y and Z directions are definitely defined to accurately match the new square cooling rubber pad. The box body is innovatively integrated with an error prevention rib, a guide rib and a clamping limiting bottom plate structure: the error prevention rib prevents the rubber pad from being installed reversely through a U-shaped groove design; the guide rib guides the deformation of a rubber pad mounting foot through a slope structure to reduce the assembly force; and the clamping limiting bottom plate prevents the rubber pad from falling off and moving in the dynamic driving of the vehicle. The application solves the matching problem of the new power assembly cooling rubber pad and the vehicle body, realizes assembly error prevention, convenient guidance and reliable limiting, effectively saves the assembly man-hours, and finally improves the NVH performance of the whole vehicle and eliminates the abnormal sound problem.

Description

Technical Field

[0001] This invention relates to the field of automotive body structure technology, specifically to a front body structure for mounting powertrain cooling pads. Background Technology

[0002] NVH performance is a crucial performance indicator in the automotive industry, directly impacting the subjective experience of drivers and passengers. The powertrain cooling system is a significant source of vibration, and the front-end structure, as the load-bearing component for powertrain cooling, is the only part connecting the powertrain cooling pads to the vehicle body. Traditional powertrain cooling pads use a circular structure to match the body, but their vibration isolation effect cannot meet the increasingly stringent NVH performance requirements. Newer powertrain cooling pads utilize a one-piece structure with an outer square rigid PP plastic body and an inner rubber core. Meeting the installation and assembly requirements of the powertrain cooling pads while achieving the desired vibration isolation effect presents a greater challenge to the front-end frame structure.

[0003] In related technologies, the upper rubber pad for powertrain cooling uses a circular rubber structure, connected to the vehicle body via a metal mounting adapter. This metal mounting bracket is then bolted firmly to the front-end structure of the vehicle body. NVH (Noise, Vibration, and Harshness) isolation relies entirely on the compression of the rubber pad itself to absorb the excitation. However, the connection method between the rubber bushing and the metal bracket cannot meet current NVH isolation requirements. The new powertrain cooling pad uses an outer square rigid PP plastic and an inner rubber integrated structure; therefore, the issue of how to match it with the vehicle body installation urgently needs to be addressed. Summary of the Invention

[0004] The purpose of this invention is to provide a front structure for installing powertrain cooling pads, aiming to overcome the shortcomings of the prior art and solve the problems of difficulty in matching the new powertrain cooling pads with the vehicle body, misinstallation at the front and rear, and easy movement and detachment during dynamic processes.

[0005] Therefore, the present invention proposes a front body structure for mounting powertrain cooling pads, comprising: Front-end structural beam; The left and right columns of the front structure are respectively connected to the left and right ends of the upper beam of the front structure to fix the entire front structure to the vehicle body. The rubber pad mounting box is located inside the main structure of the upper beam of the front structure and is used to accommodate and fix the powertrain cooling rubber pad. The mounting box for the rubber pad has a rectangular outline formed by a positive X-axis side plate, a negative X-axis side plate, a positive Y-axis side plate, and a negative Y-axis side plate, as well as a Z-axis snap-fit ​​limiting base plate, which together define the installation space for the X-axis, Y-axis, and Z-axis functional dimensions of the rectangular cooling rubber pad.

[0006] As a preferred technical solution of this application, the functional surface of the negative X-direction side plate is provided with anti-misalignment ribs for installing cooling pads, which are used to cooperate with the corresponding protruding rib structure at the front of the cooling pads to prevent the cooling pads from being installed backwards in the X-direction.

[0007] As a preferred technical solution of this application, the anti-misalignment rib of the cooling pad is a U-shaped groove rib structure, which penetrates the negative X-direction side plate in the Z direction.

[0008] As a preferred technical solution of this application, the functional surface of the positive X-direction side plate is a plane, forming an asymmetrical structure with the negative X-direction side plate having the U-shaped groove rib structure, so as to realize the assembly error prevention function.

[0009] As a preferred technical solution of this application, the functional surfaces of the negative Y-axis side plate and / or the positive Y-axis side plate are provided with cooling pad mounting guide ribs, which are used to guide the deformation of the mounting foot hook structures on both sides of the cooling pad and smoothly slide into the mounting position.

[0010] As a preferred technical solution of this application, the cooling pad mounting guide rib plate is an inclined guide rib structure, and its upper opening size is larger than the functional size of the pad mounting box in the Y direction.

[0011] As a preferred technical solution of this application, the inclined guide rib structure is inclined at an angle to the inner functional surface of the negative Y-direction side plate or the positive Y-direction side plate.

[0012] As a preferred technical solution of this application, the Z-direction snap-fit ​​limiting base plate is a planar structure, and its Z-direction thickness matches the Z-direction functional dimension of the cooling pad, which is used to limit the cooling pad in the Z-direction after it is installed, so as to prevent it from moving up and down or falling off.

[0013] As a preferred technical solution of this application, the rubber pad mounting box has a left-right symmetrical structure, which can meet the universal installation requirements of the left and right cooling rubber pads.

[0014] As a preferred technical solution of this application, the left column and the right column of the front structure are connected to the vehicle body energy absorption box bracket through the mounting base plate, mounting positioning pin and mounting point thereon.

[0015] The present invention provides a front-end vehicle structure for installing powertrain cooling pads. The upper beam of the front-end structure and the left and right side pillars form a complete frame structure, which forms a stable connection with the vehicle body through the left and right side pillars. The pad mounting box is arranged within the main structure of the upper frame beam. The functional dimensions of the pad mounting box in the X / Y / Z directions are clearly defined. At the same time, the mating structure incorporates anti-misalignment rib design, installation guide design, and snap-fit ​​limit design for the pad mounting box. Through the above detailed design, the connection between the new powertrain cooling pad and the vehicle body is satisfied. The guide design ensures the ease of assembly of the cooling pad and the front-end structure of the vehicle, saving time and ultimately ensuring that the vehicle's NVH dynamics are free from vibration and abnormal noise.

[0016] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a structural diagram of a front body structure for installing powertrain cooling pads, as provided in this application; Figure 2 This is a rear exploded view of the front body structure for mounting powertrain cooling pads provided in this application; Figure 3 This is a structural diagram of a rubber pad mounting box provided in this application; Figure 4 This is a structural diagram of the mating of the side plates of a rubber pad mounting box provided in this application; Figure 5 This is a structural diagram of a front-end structure cooling pad mounting error prevention structure provided in this application; Figure 6 This is a structural diagram of a cooling pad mounting guide rib plate for a front-end structure provided in this application; Figure 7a This is the first step in the installation of the cooling pad mounting guide rib plate of the front-end structure provided in this application; Figure 7b This is step two of the installation of the cooling pad mounting guide rib plate for the front-end structure provided in this application; Figure 7c This is step three of the installation steps for the cooling pad mounting guide plate of the front-end structure provided in this application; Figure 7d This is step four of the installation steps for the cooling pad mounting guide plate of the front-end structure provided in this application; Figure 7e This is step five of the installation steps for the cooling pad mounting guide rib plate of the front-end structure provided in this application; Figure 7f This is step six of the installation process for the cooling pad mounting guide rib plate of the front-end structure provided in this application; Figure 8a This application provides the first step in the installation of a front-end structure cooling pad mounting error-proof structure. Figure 8b This is step two of the installation steps for the cooling pad mounting error prevention structure of the front-end structure provided in this application; Figure 8c This is step three of the installation steps for the cooling pad installation error prevention structure of the front-end structure provided in this application.

[0018] The explanations for each label in the diagram are as follows: 1. Front-end structure; 2. Cooling pad; 3. Energy-absorbing box bracket; 4. Anti-collision beam assembly; 41. Energy-absorbing box; 5. Front longitudinal beam assembly; 11. Front-end structure upper beam; 111. Front-end structure upper beam main body; 112. Left end of upper beam; 113. Right end of upper beam; 12. Front-end structure left column; 121. Left support column main body; 122. Left support column base plate; 123. Front-end structure mounting positioning pin; 124. Front-end structure left mounting point; 13. Right side column of front structure; 131. Main body of right support column; 132. Base plate of right support column; 133. Positioning pin for front structure installation; 134. Right mounting point of front structure; 14. Housing for mounting rubber pad; 141. Positive X-direction side plate; 142. Negative X-direction side plate; 143. Negative Y-direction side plate; 144. Positive Y-direction side plate; 145. Anti-misalignment rib for cooling rubber pad installation; 146. Guide rib plate for cooling rubber pad installation; 147. Z-direction snap-fit ​​limiting base plate. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] like Figures 1-6 , Figures 7a-7f ,and Figures 8a-8cAs shown, the front structure of the vehicle body for installing powertrain cooling pads according to the present invention includes: a front structure upper beam 11, a front structure left column 12, a front structure right column 13, and a pad mounting box 14, etc. The front structure upper beam 11 is stably connected to the vehicle body energy absorption box bracket 3, the anti-collision beam assembly 4, the energy absorption box 41, and the front longitudinal beam assembly 5 through the left front structure left column 12 and the front structure right column 13. The pad mounting box 14 in the front structure 1 is arranged inside the main structure of the front structure upper beam 11, and the cooling pad 2 is installed in the pad mounting box 14, thereby realizing the installation of the cooling pad 2.

[0021] Specifically, the front structure upper beam 11 is the upper main frame beam structure of the front structure, which has several parts including the front structure upper beam main body 111, the left end 112 of the upper beam and the right end 113 of the upper beam; the rubber pad mounting box 14 is located inside the front structure upper beam 11 and is set up opposite to the left and right. The left and right cooling rubber pad mounting structures are designed the same, which can meet the requirement of universal installation of cooling rubber pads on both sides and realize universal design.

[0022] like Figure 1 , Figure 2 As shown, the left column 12 of the front structure has a left support column body 121, a left support column base plate 122, a front structure mounting positioning pin 123, and a front structure left mounting point 124. The left support column body 121 is completely connected to the left end 112 of the upper beam. In the Z direction of the whole vehicle, it is connected to the energy-absorbing box bracket 3 on the left side of the car body structure through the left support column base plate 122. It is then positioned by the front structure mounting positioning pin 123 and the front structure left mounting point 124 to form the first connection end between the front structure of the car and the car body.

[0023] like Figure 1 As shown, the right column 13 of the front structure has a right support column body 131, a right support column base plate 132, a front structure mounting positioning pin 133, and a front structure right mounting point 134. The right column 13 of the front structure is arranged opposite to the left column 12 of the front structure. The right support column body 131 is completely connected to the right end 113 of the upper beam. In the Z direction of the whole vehicle, it is connected to the energy absorption box bracket 3 on the right side through the right support column base plate 132, and then positioned by the front structure mounting positioning pin 133 and the front structure right mounting point 134 to form the second connection end between the front structure 1 of the car and the car body.

[0024] The front structure 1 has a rectangular outer shape and the internal structure has the following structural features: positive X-axis side plate 141, negative X-axis side plate 142, negative Y-axis side plate 143, positive Y-axis side plate 144, cooling pad mounting anti-misalignment rib 145, cooling pad mounting guide rib plate 146, and Z-axis snap-fit ​​limiting base plate 147.

[0025] The positive X-direction side plate 141 and the negative X-direction side plate 142 on the front end structure 1 are both defined as planar structures to cooperate with the X-direction front and rear structures of the rectangular cooling pad 2. The design defines the opening functional dimensions of the positive X-direction side plate 141 and the negative X-direction side plate 142 to cooperate with the X-direction functional dimensions of the rectangular cooling pad 2, and to achieve the cooperation and limitation of the powertrain cooling pad 2 and the front end structure 1 of the vehicle body in the X directions.

[0026] Both the negative Y-side plate 143 and the positive Y-side plate 144 on the front end structure 1 are defined as planar structures to match the Y-side structures of the rectangular cooling pad. The relative opening functional dimensions of the negative Y-side plate 143 and the positive Y-side plate 144 are designed and defined to match the Y-side functional dimensions of the rectangular cooling pad, and to achieve the matching and limiting of the powertrain cooling pad 2 with the two Y-sides of the front end structure 1 of the vehicle body.

[0027] like Figure 3 As shown in / 4 / 6; the Z-direction snap-fit ​​limiting base plate 147 on the front structure 1 is defined as a planar structure to match the two heights of the rectangular cooling pad in the Z direction. The Z-direction functional dimension height is designed and defined to match the Z-direction functional structure of the rectangular cooling pad 2 itself, and to achieve the matching and limiting of the Z-direction thickness of the powertrain cooling pad 2 and the front structure 1 of the vehicle body.

[0028] like Figure 3 As shown in Figure 5, the cooling pad on the front structure 1 is designed with anti-misalignment ribs 145. In the overall length direction of the vehicle, on the functional surface of the negative X-direction side plate 142, a U-shaped groove rib structure is designed. The U-shaped groove rib runs through the functional surface of the negative X-direction side plate 142 from top to bottom in the Z direction, and the opening depth and width of the U-shaped groove rib structure are defined.

[0029] The negative X-axis side plate 142 forms a cooling pad mounting anti-misalignment rib 145. The anti-misalignment groove design of the cooling pad mounting anti-misalignment rib 145 complements the convex rib design at the front of the rectangular cooling pad. Simultaneously, no U-shaped groove rib is made on the functional surface of the positive X-axis side plate 141, structurally differentiating the negative X-axis side plate 142 from the positive X-axis side plate 141. This structural design achieves the anti-misalignment function of the cooling pad 2 in the X-axis functional surface during assembly (complementing...). Figure 3 (as shown in / 5 / 8).

[0030] Visually, the U-shaped groove ribs on the negative X-direction side plate 142 and the U-shaped protrusion ribs of the cooling pad 2 can more intuitively identify the difference and matching relationship between the assembly cooling pad 2 and the pad mounting box 14. In terms of design structure, the steps of placing parts can be reduced simultaneously, thereby saving time (as shown in Figure 8: Step 1-Step 3).

[0031] In terms of the overall width direction of the vehicle, cooling pad mounting guide ribs 146 are designed on the functional surfaces of the negative Y-direction side plate 143 and the positive Y-direction side plate 144. An inclined guide rib structure is designed, with the inclined guide ribs set from top to middle on the inner functional surface of the negative Y-direction side plate 143 and at an inclined angle to the inner functional surface of the negative Y-direction side plate 143. The upper opening size of the inclined guide rib structure is larger than the functional dimensions of the negative Y-direction side plate 143 and the positive Y-direction side plate 144 (the assembly process is shown in Figure 7: step 1).

[0032] Simultaneously, the opening depth and width of the inclined guide rib structure are defined to match the negative Y-direction side plate 143, forming the cooling pad mounting guide rib plate 146. The inclined guide rib structure design of the cooling pad mounting guide rib plate 146 is used to match the protruding mounting foot design structure on the side of the rectangular cooling pad 2. At the same time, the inclined guide rib structure is set opposite to the positive Y-direction side plate on the functional surface of the positive Y-direction side plate 144, and the inclined guide rib structure is symmetrically formed.

[0033] The overall assembly process design is shown in Figure 7. Structurally, the difference in opening size between the negative Y-axis side plate 143 and the cooling pad mounting guide rib plate 146 is achieved. The opening size of the cooling pad mounting guide rib plate 146 is larger than the functional size of the negative Y-axis side plate 143 and the positive Y-axis side plate. In terms of design, this realizes the assembly process of the Y-axis functional surface of the cooling pad 2. Initially, it contacts the inclined guide rib structure (as shown in Figure 7: Step 1). The large opening size of the inclined guide rib structure facilitates the placement of the cooling pad 2 (as shown in Figure 7: Step 2). At the same time, the large angle design of the inclined guide rib structure guides the protruding mounting feet on the side of the cooling pad 2 to retract inward (as shown in Figure 7: Steps 2-4), and quickly assembles them into place (as shown in Figure 7: Steps 4-6). Visually, the inclined guide rib structure of the negative Y-axis side plate 143 and the positive Y-axis side plate 144 makes it easier to know the force position when assembling the cooling pad 2. The design structure can simultaneously visualize and quickly place the parts, quickly guide the force position, reduce the assembly force during the assembly process, reduce the unnecessary assembly actions caused by multiple adjustments due to the parts not being placed in the correct position, and thus save time.

[0034] The front structure 1 features a Z-axis snap-fit ​​limiting base plate 147 design, which is a structure that matches the height of the vehicle. The design matches the upper matching surface of the cooling pad 2 and the lower mounting foot hook to prevent the cooling pad from falling off due to poor fit after assembly, as well as causing abnormal noises and vibrations. like Figure 1 , Figure 2As shown, the front structure 1 of the automobile with the rubber pad mounting box 14 is formed by the upper beam 11 of the front structure, the left column 12 of the front structure, and the right column 13 of the front structure. The front structure 1 is stably connected by the left column 12 of the left front structure, the right column 13 of the front structure, and the body energy absorption box bracket 3. The rubber pad mounting box 14 in the front structure 1 is arranged in the main structure of the upper beam 11 of the front structure, and the functional surface definition of the rubber pad mounting box in the X / Y / Z directions is clearly defined.

[0035] Simultaneously, the design of the anti-misalignment rib structure for the mounting box, the installation guide structure, and the snap-fit ​​limiting base plate are defined on the mating surface structure. The above detailed design satisfies the connection between the new powertrain cooling pad and the vehicle body. Through the visual structural difference of the anti-misalignment rib, the difference between the front and back of the assembly cooling pad 2 can be more intuitively identified. The design structure can simultaneously reduce the steps of placing the reversed parts, thereby saving time.

[0036] The large opening size of the inclined guide rib structure and the structure of the mating surface facilitate the placement of the cooling pad 2. The large angle design of the inclined guide rib structure can also guide the protruding mounting feet on the side of the cooling pad 2 to retract inward and quickly assemble into place. It makes it more intuitive to see the force position when assembling the cooling pad 2. It can simultaneously visualize and quickly place the parts, quickly guide the force position, and reduce the assembly force during the assembly process. It reduces the unnecessary assembly actions caused by multiple adjustments due to the parts not being able to be placed in place, thereby saving time. The Z-direction snap-fit ​​limiting base plate prevents the cooling pad from falling off due to poor fit after assembly, as well as abnormal noises caused by vertical vibration. In summary, the design details shown above demonstrate that this front structure of the vehicle body used for installing powertrain cooling pads satisfies the assembly error prevention function of cooling pads 2 and front structure 1 of the vehicle, facilitates assembly guidance, and reduces assembly force, thereby saving time in multiple dimensions, while ensuring that the whole vehicle's NVH dynamics are free from vibration and abnormal noise.

[0037] The working principle and process of the front body structure for installing powertrain cooling pads according to the present invention are briefly described below.

[0038] This invention discloses a front structure of a vehicle body for installing powertrain cooling pads, including: a front structure upper beam, left and right side pillars of the front structure, the appearance of the pad mounting box of the front structure, the X-axis dimension definition of the pad mounting box feature, the Y-axis dimension definition of the pad mounting box feature, the Z-axis dimension definition of the pad mounting box feature, the structural dimension design of the anti-misalignment rib of the pad mounting box, the installation guide angle and structural dimension design of the pad mounting box, and the snap-fit ​​limit design of the pad mounting box.

[0039] This invention discloses a front-end structure for installing cooling pads on a vehicle body, which includes a cooling pad mounting mating surface design, an installation error-proof structure design, an installation guide structure design, and a snap-fit ​​limiting structure design. The cooling pad mounting mating surface design ensures the installation function of the new powertrain cooling pad; the installation error-proof structure design solves the technical problem of misinstallation of the new powertrain cooling pad; the installation guide structure design solves the technical problem of difficult assembly of the new powertrain cooling pad; and the snap-fit ​​limiting structure design solves the technical problem of the new powertrain cooling pad moving and falling off during dynamic processes.

[0040] This invention provides a vehicle front-end structure for installing cooling pads, which meets the installation and assembly requirements of new powertrain cooling pads, achieves the expected vibration isolation effect, facilitates cooling pad assembly, and ensures no abnormal noise during vehicle dynamics after assembly. The technical advantages achieved by this invention are: clearly defined dimensions for the fitting structure between the new automotive powertrain cooling pad and the vehicle body; convenient assembly of the cooling pad and the vehicle front-end structure to save labor time; and no abnormal noise during vehicle NVH dynamics.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A front body structure for mounting powertrain cooling pads, characterized in that, include: Front-end structural upper beam (11); The left column (12) and the right column (13) of the front structure are respectively connected to the left and right ends of the upper beam (11) of the front structure, and are used to fix the entire front structure (1) to the vehicle body. The rubber pad mounting box (14) is located inside the main structure of the upper beam (11) of the front structure and is used to accommodate and fix the powertrain cooling rubber pad (2). The pad mounting box (14) has a rectangular outline formed by the positive X-axis side plate (141), the negative X-axis side plate (142), the positive Y-axis side plate (144) and the negative Y-axis side plate (143), and a Z-axis snap-fit ​​limiting base plate (147), which together define the installation space for the X-axis, Y-axis and Z-axis functional dimensions of the rectangular cooling pad (2); Among them, the functional surface of the negative X-direction side plate (142) is provided with a cooling pad installation anti-misalignment rib (145), which is used to cooperate with the corresponding protruding rib structure at the front of the cooling pad (2) to prevent the cooling pad (2) from being installed backwards in the X direction; The negative Y-axis side plate (143) and / or the positive Y-axis side plate (144) are provided with cooling pad installation guide ribs (146) to guide the deformation of the mounting foot hook structure on both sides of the cooling pad (2) and smoothly slide into the installation position; the cooling pad installation guide ribs (146) are inclined guide rib structures, and the upper opening size is larger than the Y-axis functional size of the pad installation box (14).

2. The front body structure for mounting powertrain cooling pads according to claim 1, characterized in that, The cooling pad installation anti-misalignment rib (145) is a U-shaped groove rib structure, which penetrates the negative X-direction side plate (142) in the Z direction.

3. The front body structure for mounting powertrain cooling pads according to claim 2, characterized in that, The functional surface of the positive X-direction side plate (141) is a plane, forming an asymmetrical structure with the negative X-direction side plate (142) which has the U-shaped groove rib structure.

4. The front body structure for mounting powertrain cooling pads according to claim 1, characterized in that, The inclined guide rib structure is inclined at an angle to the inner functional surface of the negative Y-direction side plate (143) or the positive Y-direction side plate (144).

5. The front body structure for mounting powertrain cooling pads according to claim 1, characterized in that, The Z-direction snap-fit ​​limiting base plate (147) is a planar structure, and its Z-direction thickness matches the Z-direction functional dimension of the cooling pad (2) to limit the cooling pad (2) in the Z-direction after it is installed.

6. The front body structure for mounting powertrain cooling pads according to claim 1, characterized in that, The rubber pad mounting box (14) has a left-right symmetrical structure.

7. The front body structure for mounting powertrain cooling pads according to any one of claims 1 to 6, characterized in that, The left column (12) and right column (13) of the front structure are connected to the vehicle body energy absorption box bracket (3) through the mounting base plate, mounting positioning pin and mounting point on them.

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