A stop end profile

Abstract

The utility model discloses a kind of stop mouth section bars, it is related to stop mouth section bar technical field, including section bar body, the section bar body is bent by bending machine, and section bar body is bonded in plane aluminum plate both ends, the section bar body and the stop mouth section bar appearance combined by plane aluminum plate meets battery cover sealing requirement and is arranged in maintenance door perimeter, the section bar body female inside is fixed with support framework, and support framework is rectangular frame structure, sound insulation bin is arranged in the inside of support framework, and sound insulation bin section is hourglass structure, sound insulation bin end is provided with sound insulation board.This application provides a kind of stop mouth section bar, this application when producing passenger car battery cover stop mouth section bar, only need to be bent after section bar body is bent by bending machine, then with plane aluminum plate bonding is out finished product, the section bar body and the stop mouth section bar appearance combined by plane aluminum plate meets battery cover sealing requirement and is arranged in maintenance door perimeter, product quality is improved, efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of stop profile technology, specifically a stop profile. Background Technology

[0002] Profiles are objects with a certain geometric shape made of iron or steel and other materials with a certain strength and toughness through processes such as rolling, extrusion, and casting.

[0003] In the existing technology, the battery cover gusset profile of the bus is formed by bending it multiple times on a bending machine by the operator. One gusset needs to go through four bends, and then a supporting frame is added and glued together. The battery cover has a large arc, and both the frame and the skin need to be bent into arc shape. Since the skin is irregular in shape, it is not easy to form and needs to be cut and bent, which is troublesome. Utility Model Content

[0004] The purpose of this utility model is to provide a stop profile to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stop profile, comprising a profile body, wherein the profile body is bent by a bending machine and the profile body is bonded to both ends of a flat aluminum plate, and the stop profile formed by the combination of the profile body and the flat aluminum plate conforms to the sealing requirements of the battery cover and is arranged around the maintenance door.

[0006] Furthermore, a support frame is fixed inside the recess of the profile body, and the support frame is a rectangular frame structure.

[0007] Furthermore, the supporting frame is equipped with a soundproof chamber, and the cross-section of the soundproof chamber is hourglass-shaped.

[0008] Furthermore, the soundproof chamber is provided with a soundproof panel at its end, and the soundproof panel is made of melamine foam material used to block low-frequency resonance.

[0009] Furthermore, the sidewall of the soundproof chamber is attached with a soundproof layer, and the soundproof layer is made of honeycomb sound-absorbing cotton material used to absorb mid-to-high frequency noise.

[0010] Furthermore, the soundproof compartment is provided with an anti-collision layer on the outside, and the anti-collision layer is a composite material consisting of an outer aramid fiber woven layer, a middle double aramid honeycomb panel, and an inner polyurethane foam material.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. In the production of the battery cover stop profile of the present invention, the profile body only needs to be bent by a bending machine and then bonded to a flat aluminum plate to produce the finished product. The stop profile composed of the profile body and the flat aluminum plate meets the sealing requirements of the battery cover and is arranged around the maintenance door, thereby improving product quality and efficiency.

[0013] 2. In use, this utility model achieves a leap in performance across the entire frequency range, from low-frequency resonance suppression to mid-to-high-frequency noise absorption, through the synergistic effect of multiple energy dissipation mechanisms, including geometric acoustic optimization of the hourglass-shaped sound collection port in the sound insulation chamber within the supporting frame, melamine foam sound insulation board for blocking low-frequency resonance, and honeycomb sound-absorbing cotton sound insulation layer for absorbing mid-to-high-frequency noise. Combined with the multi-layer composite material anti-collision layer set on the outside of the sound insulation chamber, the comprehensive protection performance is significantly improved under the premise of limited weight increase through the deep coupling of acoustic and mechanical design. It is particularly suitable for scenarios such as new energy buses with stringent requirements for battery compartment safety and NVH. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the process improvement of this utility model;

[0015] Figure 2 This is a schematic diagram of the split structure of the device of this utility model;

[0016] Figure 3 This is a schematic diagram of the profile body structure of this utility model.

[0017] In the diagram: 1. Profile body; 2. Flat aluminum plate; 3. Support frame; 4. Sound insulation chamber; 5. Sound insulation board; 6. Sound insulation layer; 7. Anti-collision layer. Detailed Implementation

[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0019] like Figures 1 to 2 As shown, a stop profile includes a profile body 1, which is bent by a bending machine and bonded to both ends of a flat aluminum plate 2. The stop profile formed by the combination of the profile body 1 and the flat aluminum plate 2 conforms to the sealing requirements of the battery cover and is arranged around the maintenance door.

[0020] The specific operation is as follows: When producing the battery cover stop profile of the bus, this application only needs to bend the profile body 1 through the bending machine and then bond it to the flat aluminum plate 2 to produce the finished product. The stop profile composed of the profile body 1 and the flat aluminum plate 2 meets the sealing requirements of the battery cover and is arranged around the maintenance door, thus improving product quality and efficiency.

[0021] like Figures 2 to 3As shown, a support frame 3 is fixed inside the recess of the profile body 1, and the support frame 3 is a rectangular frame structure. A sound insulation chamber 4 is set inside the support frame 3, and the cross-section of the sound insulation chamber 4 is an hourglass structure. A sound insulation board 5 is set at the end of the sound insulation chamber 4, and the sound insulation board 5 is made of melamine foam material used to block low-frequency resonance. A sound insulation layer 6 is attached to the side wall of the sound insulation chamber 4, and the sound insulation layer 6 is made of honeycomb sound-absorbing cotton material used to absorb mid-to-high frequency noise. An anti-collision layer 7 is set outside the sound insulation chamber 4, and the anti-collision layer 7 is a composite material made of an outer aramid fiber woven layer, a middle double aramid honeycomb board, and an inner polyurethane foam material.

[0022] The specific operation is as follows: Through the synergistic effect of multiple energy dissipation mechanisms, such as the geometric acoustic optimization of the hourglass-shaped sound collection port of the inner sound insulation chamber 4 of the supporting frame 3, the melamine foam sound insulation board 5 used to block low-frequency resonance, and the honeycomb sound-absorbing cotton sound insulation layer 6 used to absorb mid-to-high frequency noise, a full-band performance leap from low-frequency resonance suppression to mid-to-high frequency noise absorption is achieved. Combined with the multi-layer composite material anti-collision layer 7 set on the outside of the sound insulation chamber 4, the comprehensive protection performance is significantly improved under the premise of limited weight increase through the deep coupling of acoustic and mechanical design. It is particularly suitable for scenarios such as new energy buses with strict requirements for battery compartment safety and NVH.

[0023] Working principle: In the production of the battery cover stop profile of the present application, the profile body 1 is simply bent by a bending machine and then bonded to the flat aluminum plate 2 to produce the finished product. The stop profile formed by the combination of the profile body 1 and the flat aluminum plate 2 meets the sealing requirements of the battery cover and is arranged around the maintenance door. The product quality is improved and the efficiency is increased. Through the synergistic effect of multiple energy dissipation mechanisms, such as the geometric acoustic optimization of the hourglass-shaped sound collection port of the sound insulation chamber 4 in the support frame 3, the melamine foam sound insulation board 5 used to block low-frequency resonance, and the honeycomb sound-absorbing cotton sound insulation layer 6 used to absorb mid-to-high frequency noise, the full-band performance leap from low-frequency resonance suppression to mid-to-high frequency noise absorption is achieved. With the multi-layer composite material anti-collision layer 7 set on the outside of the sound insulation chamber 4, the comprehensive protection performance is significantly improved under the premise of limited weight increase through the deep coupling of acoustic and mechanical design. It is particularly suitable for scenarios such as new energy buses with strict requirements for battery compartment safety and NVH.

[0024] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A stop profile, comprising a profile body (1), characterized in that, The profile body (1) is bent by a bending machine and the profile body (1) is bonded to both ends of the flat aluminum plate (2). The profile body (1) and the flat aluminum plate (2) are combined to form a stop profile whose shape meets the sealing requirements of the battery cover and is arranged around the maintenance door.

2. The stop profile according to claim 1, characterized in that, The profile body (1) has a support frame (3) fixed inside the recess, and the support frame (3) is a rectangular frame structure.

3. The stop profile according to claim 2, characterized in that, The support frame (3) is provided with a soundproof chamber (4) inside, and the cross-section of the soundproof chamber (4) is an hourglass structure.

4. The stop profile according to claim 3, characterized in that, The soundproof chamber (4) is provided with a soundproof board (5) at its end, and the soundproof board (5) is made of melamine foam material used to block low-frequency resonance.

5. A stop profile according to claim 4, characterized in that, The soundproof chamber (4) has a soundproof layer (6) attached to its side wall, and the soundproof layer (6) is made of honeycomb sound-absorbing cotton material used to absorb mid-to-high frequency noise.

6. The stop profile according to claim 5, characterized in that, The soundproof chamber (4) is provided with an anti-collision layer (7) on the outside, and the anti-collision layer (7) is a composite material consisting of an outer aramid fiber woven layer, a middle double aramid honeycomb panel, and an inner polyurethane foam material.

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