CN202783396U - Car body counter-weight mass block structure - Google Patents
Car body counter-weight mass block structure Download PDFInfo
- Publication number
- CN202783396U CN202783396U CN201220463849.9U CN201220463849U CN202783396U CN 202783396 U CN202783396 U CN 202783396U CN 201220463849 U CN201220463849 U CN 201220463849U CN 202783396 U CN202783396 U CN 202783396U
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- China
- Prior art keywords
- car
- car body
- mass block
- block structure
- counter
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Body Structure For Vehicles (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model relates to a car body counter-weight mass block structure, belongs to the field of car NVH (Noise Vibration and Harshness), and solves the problem that noises in a car are relatively great. The car body counter-weight mass block structure comprises a counter weight block and the counter weight block is mounted on a cross beam at the top of the car. The car body counter-weight mass block structure has the advantages of being simple to structure and convenient to installation; and an acoustic characteristic of a car body of the car is changed through changing a partial fixed frequency of the car body, so as to have the effect of improving the car noises.
Description
Technical field
The utility model relates to a kind of automobile component, relates in particular to a kind of vehicle body weight mass block structure, belongs to auto NVH (noise, vibration and traveling comfort) field.
Background technology
Noise, vibration and traveling comfort (NVH) are global questions weighing the Automobile manufacturing quality, and it gives the impression of auto consumer is the most intuitively, also are the most one of outline and difficulties of each large car load manufacturing enterprise.When vehicle body is subjected to moulding, arrangement constraints, when forming resonance with driving engine two, quadravalence frequency in some specific rotation speeds, internal car noise can produce a peak value, seriously influences car load sound quality.
Summary of the invention
The purpose of this utility model is exactly for defects, and a kind of vehicle body weight mass block structure that reduces car noise is provided.
The technical solution adopted in the utility model is: it comprises clump weight, and described clump weight is installed on the crossbeam of automobile top.
Further, described clump weight is one or more; Described crossbeam comprises the one or more crossbeams in automotive front, automobile middle part and the automobile rear.
The utility model is simple in structure, easy for installation, can change the acoustic performance of auto body by changing the local natural frequency of vehicle body, plays the effect that improves vehicle noise.
Description of drawings
Fig. 1 is the utility model structural representation.
Wherein, 1-crossbeam; The 2-clump weight; 3-automobile body welding assembly.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As shown in Figure 1, the utility model comprises clump weight 2, and clump weight 2 is installed on the crossbeam 1 of automobile top.Clump weight 2 is one or more; Crossbeam 1 comprises the one or more crossbeams in automotive front, automobile middle part and the automobile rear.
Before the general assembly, the crossbeam 1 on automobile body welding assembly 3 is installed the clump weight 2 of certain mass, reaches the effect that reduces internal car noise by the local stiffness that changes vehicle body.
Claims (2)
1. vehicle body weight mass block structure, it is characterized in that: it comprises clump weight, described clump weight is installed on the crossbeam of automobile top.
2. a kind of vehicle body weight mass block structure according to claim 1, it is characterized in that: described clump weight is one or more; Described crossbeam comprises the one or more crossbeams in automotive front, automobile middle part and the automobile rear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220463849.9U CN202783396U (en) | 2012-09-12 | 2012-09-12 | Car body counter-weight mass block structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220463849.9U CN202783396U (en) | 2012-09-12 | 2012-09-12 | Car body counter-weight mass block structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202783396U true CN202783396U (en) | 2013-03-13 |
Family
ID=47810714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220463849.9U Expired - Lifetime CN202783396U (en) | 2012-09-12 | 2012-09-12 | Car body counter-weight mass block structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202783396U (en) |
-
2012
- 2012-09-12 CN CN201220463849.9U patent/CN202783396U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |